OUTDOOR UNIT AND HEATING AND VENTILATION APPARATUS

Description

This application is a continuation of International Patent Application No. PCT/CN2023/093102, filed on May 9, 2023, the entire contents of which are incorporated herein by reference.

FIELD

The present disclosure relates to the field of air conditioning device technologies, and in particular, to an outdoor unit and a heating and ventilation apparatus.

BACKGROUND

In the related art, an outdoor unit generally has two compartments: an outdoor heat exchanger and an outdoor fan are located in one compartment, while a compressor assembly and a water circuit heat exchange assembly are located in the other compartment. Due to numerous piping and parts in the compressor assembly and the water circuit heat exchange assembly, such a configuration results in a disorganized distribution of various members, which is not conducive to mounting and disassembly of the entire outdoor unit, reducing an assembly efficiency of the entire outdoor unit. Additionally, when a member of the entire outdoor unit is damaged, disassembly and maintenance of the member are also hindered, leading to a low maintenance efficiency.

SUMMARY

Some embodiments of the present disclosure aims to solve at least one of the technical problems in the related art. To this end, one objective of the present disclosure is to provide an outdoor unit. By dividing an outdoor unit housing in a left-right direction into a fan chamber, a compressor chamber, and a water circuit chamber, and arranging a compressor assembly and a water circuit heat exchange assembly in different compartments, a layout of the entire outdoor unit is more reasonable and a clear and orderly distribution of individual assemblies is ensured. In this way, mounting and disassembly of the entire outdoor unit are facilitated, which improves an assembly efficiency of the entire outdoor unit, and facilitates replacement and maintenance of individual assemblies. Further, by disposing a first electrical control box part between the fan chamber and the compressor chamber and disposing a second electrical control box part in the water circuit chamber, the layout of the entire outdoor unit becomes even more reasonable, facilitating connections between other members of the entire outdoor unit and the first and second electrical control box parts, as well as control over other members of the entire outdoor unit by the first electrical control box part and the second electrical control box part.

In some embodiments of the present disclosure, a heating and ventilation apparatus including the above-mentioned outdoor unit is further provided.

According to some embodiments of the present disclosure, an outdoor unit includes: an outdoor unit housing having a fan chamber, a compressor chamber, and a water circuit chamber that are arranged in a left-right direction; an outdoor heat exchanger and an outdoor fan that are disposed in the fan chamber; a compressor assembly disposed in the compressor chamber and including a compressor; a water circuit heat exchange assembly including a water circuit heat exchanger and a water pump, in which the water circuit heat exchanger has a water flow path and a refrigerant flow path that are capable of exchanging heat with each other, at least the water circuit heat exchanger and the water pump of the water circuit heat exchange assembly are disposed in the water circuit chamber, and the water pump is adapted to be in communication with the water flow path and is configured to drive water in the water flow path to flow; a first electrical control box part disposed between the fan chamber and the compressor chamber; and a second electrical control box part disposed in the water circuit chamber.

With the outdoor unit according to embodiments of the present disclosure, by dividing the outdoor unit housing in the left-right direction into the fan chamber, the compressor chamber, and the water circuit chamber, and arranging the compressor assembly and the water circuit heat exchange assembly in different compartments, a layout of the entire outdoor unit is more reasonable and a clear and orderly distribution of individual assemblies is ensured. In this way, mounting and disassembly of the entire outdoor unit are facilitated, which improves an assembly efficiency of the entire outdoor unit, and facilitates replacement and maintenance of individual assemblies. Further, by disposing the first electrical control box part between the fan chamber and the compressor chamber and disposing the second electrical control box part in the water circuit chamber, the layout of the entire outdoor unit becomes even more reasonable, facilitating connections between other members of the entire outdoor unit and the first and second electrical control box parts, as well as control over other members of the entire outdoor unit by the first electrical control box part and the second electrical control box part.

According to some embodiments of the present disclosure, at least one or more components in the first electrical control box part each have greater power than a component in the second electrical control box part; and/or the first electrical control box part is at least configured to control the outdoor fan and the compressor, and the second electrical control box part is configured to control the water circuit heat exchange assembly or to control the water circuit heat exchange assembly and the refrigerant flow path.

According to some embodiments of the present disclosure, a thickness direction of the first electrical control box part is set in the left-right direction; and/or a thickness direction of the second electrical control box part is set in the left-right direction.

According to some embodiments of the present disclosure, a length direction of the first electrical control box part is set in an up-down direction; and/or a length direction of the second electrical control box part is set in an up-down direction.

According to some embodiments of the present disclosure, the first electrical control box part is electrically connected to the second electrical control box part, and the second electrical control box part includes a terminal block electrically connected to an external power source.

According to some embodiments of the present disclosure, a part of a wiring harness electrically connecting the first electrical control box part to the second electrical control box part is adapted to extend above the compressor assembly.

According to some embodiments of the present disclosure, a second partition plate is disposed between the compressor chamber and the water circuit chamber. The second partition plate has a wiring structure formed at an upper part of the second partition plate. The part of the wiring harness electrically connecting the first electrical control box part to the second electrical control box part is adapted to extend above the compressor assembly and extend to the water circuit chamber via the wiring structure.

According to some embodiments of the present disclosure, a wiring harness connected to an electrical control assembly of the first electrical control box part includes a first electrical control wiring harness and a second electrical control wiring harness that are separately disposed. The first electrical control wiring harness includes a first electrical control wiring sub-harness electrically connected to the terminal block, a second electrical control wiring sub-harness electrically connected to the compressor, and a third electrical control wiring sub-harness electrically connected to the outdoor fan. The second electrical control wiring harness is electrically connected to a main control board of the second electrical control box part.

According to some embodiments of the present disclosure, a second partition plate is disposed between the compressor chamber and the water circuit chamber, the second partition plate having a wiring structure formed at an upper part of the second partition plate. The wiring structure has a first wiring hole and a second wiring hole that are spaced apart from each other in a front-rear direction. The first electrical control wiring sub-harness is adapted to extend above the compressor assembly and extend to the water circuit chamber via the first wiring hole. The second electrical control wiring harness is adapted to extend above the compressor assembly and extend to the water circuit chamber via the second wiring hole.

According to some embodiments of the present disclosure, a sound insulation hood is provided inside the compressor chamber, and disposed to cover the compressor assembly at an outer side of the compressor assembly. The first electrical control wiring sub-harness is adapted to extend to the second partition plate along an outer surface of the sound insulation hood, extend upwards to the first wiring hole along the second partition plate, and extend to the water circuit chamber via the first wiring hole. The second electrical control wiring harness is adapted to extend to the second partition plate along the outer surface of the sound insulation hood, extend upwards to the second wiring hole along the second partition plate, and extend to the water circuit chamber via the second wiring hole.

According to some embodiments of the present disclosure, a part of the first electrical control wiring sub-harness extending along the outer surface of the sound insulation hood and a part of the second electrical control wiring harness extending along the outer surface of the sound insulation hood are spaced apart in the front-rear direction.

According to some embodiments of the present disclosure, the second electrical control wiring sub-harness is adapted to extend to a top of the sound insulation hood along an outer surface of the sound insulation hood, and extend downwards through a pipeline outlet at the top of the sound insulation hood, to electrically connect the second electrical control wiring sub-harness to the compressor.

According to some embodiments of the present disclosure, a first partition plate is disposed between the fan chamber and the compressor chamber; and the third electrical control wiring sub-harness is adapted to extend along an outer surface of the sound insulation hood to the first partition plate, and extend to the fan chamber by passing through the first partition plate, to electrically connect the third electrical control wiring sub-harness to the outdoor fan.

According to some embodiments of the present disclosure, a first partition plate is disposed between the fan chamber and the compressor chamber, the first electrical control box part being withdrawably disposed at the first partition plate; and/or a second partition plate is disposed between the compressor chamber and the water circuit chamber, the second electrical control box part being withdrawably disposed at the second partition plate.

According to some embodiments of the present disclosure, at least one of the first electrical control box part and the second electrical control box part is withdrawable in an up-down direction.

According to some embodiments of the present disclosure, a first partition plate is disposed between the fan chamber and the compressor chamber; the first electrical control box part is disposed at the first partition plate and includes a first electrical control box; the first electrical control box includes a first electrical control box body and a first electrical control assembly disposed in the first electrical control box body. The first electrical control assembly includes an electrical control board and a plurality of components disposed at the electrical control board. The electrical control board has a first side and a second side that are opposite to each other in a thickness direction of the electrical control board. At least one or more of the plurality of components are disposed on the first side of the electrical control board, and the first side of the electrical control board faces the fan chamber.

According to some embodiments of the present disclosure, at least one or more of the plurality of components are power components, and at least one or more of the power components are located on the first side of the electrical control board.

According to some embodiments of the present disclosure, the first electrical control box part includes a first heat dissipation member, and the first electrical control box is provided with the first heat dissipation member at a side of the first electrical control box close to the fan chamber, the first heat dissipation member being at least partially located in the fan chamber.

According to some embodiments of the present disclosure, the outdoor unit includes at least one of: a first air guide cover located at a top of the first heat dissipation member; and a second air guide cover located at a bottom of the first heat dissipation member. The first air guide cover and the second air guide cover are each configured to guide an airflow in the compressor chamber to the first heat dissipation member.

According to some embodiments of the present disclosure, the first electrical control box part further includes a second heat dissipation member, and the second heat dissipation member is arranged at a side of the first electrical control box close to the compressor chamber, the second heat dissipation member being at least partially located in the compressor chamber.

According to some embodiments of the present disclosure, the second electrical control box part is located above the water pump and/or the water circuit heat exchanger.

According to some embodiments of the present disclosure, the water circuit heat exchange assembly further includes an electric heater, the water circuit heat exchanger has a first water inlet and a first water outlet, the electric heater having a second water inlet in connection with the first water outlet and a second water outlet. The electric heater is located above the water circuit heat exchanger.

According to some embodiments of the present disclosure, the first water outlet is in communication with the second water inlet through a connection pipe; a water inlet pipe is connected at the first water inlet; and a water outlet pipe is connected at the second water outlet. The connection pipe, the water inlet pipe, and the water outlet pipe are all located at a same side of each of the water circuit heat exchanger and the electric heater.

According to some embodiments of the present disclosure, a first partition plate is disposed between the fan chamber and the compressor chamber and has a mounting opening at a lower part of the first partition plate. The water circuit heat exchange assembly further includes an expansion tank mounted at the mounting opening and supported at a base of the outdoor unit housing. The expansion tank is partially located in the fan chamber, and the expansion tank is partially located in the compressor chamber.

According to some embodiments of the present disclosure, the water circuit heat exchange assembly further includes an expansion tank, the expansion tank being located outside the outdoor unit housing and close to the water circuit chamber.

According to some embodiments of the present disclosure, the compressor assembly further includes a liquid accumulator fixed on a base of the outdoor unit housing.

According to some embodiments of the present disclosure, a sound insulation hood is disposed to cover the compressor assembly at an outside of the compressor assembly; a first partition plate is disposed between the fan chamber and the compressor chamber; and a second partition plate is disposed between the water circuit chamber and the compressor chamber. The first partition plate is at least partially formed as a part of the sound insulation hood and/or the second partition plate is at least partially formed as a part of the sound insulation hood.

According to some embodiments of the present disclosure, a return gas pipe connected to the compressor assembly has a plurality of U-shaped segments that are sequentially connected. The compressor assembly further includes a liquid accumulator connected to the compressor; a third reference circle is a circle taking a center of an exhaust port of the compressor as a circle center and R1 as a radius, where R1 is greater than a radius of the compressor by a difference ranging from 5 mm to 225 mm; a fourth reference circle is a circle taking a center of a return gas port of the liquid accumulator as a circle center and R2 as a radius, where R2 is greater than a radius of the liquid accumulator by a difference ranging from 5 mm to 200 mm. At least part of projections of the plurality of U-shaped segments of the return gas pipe in a horizontal plane is located in an intersection region between the third reference circle and the fourth reference circle.

According to some embodiments of the present disclosure, a return gas pipe connected to the compressor assembly has a plurality of U-shaped segments that are sequentially connected and a vertical segment connected between every two adjacent U-shaped segments of the plurality of U-shaped segments. At least part of the vertical segment is a corrugated pipe or a rubber hose.

According to some embodiments of the present disclosure, the outdoor unit housing includes: a main housing body having an open front side; and a front panel arranged to cover the main housing body at the front side of the main housing body. The front panel includes a first panel and a second panel that are arranged in the left-right direction and formed independently. The first panel is located at a front side of the fan chamber, and the second panel is located at a front side of both the compressor chamber and the water circuit chamber.

According to some embodiments of the present disclosure, the first panel and the second panel are detachably connected, and at least one of the first panel and the second panel is detachably connected to the main housing body.

According to some embodiments of the present disclosure, a heating and ventilation apparatus includes the outdoor unit according to some of the above embodiments of the present disclosure.

For the heating and ventilation apparatus according to embodiments of the present disclosure, the above outdoor unit is provided. By dividing the outdoor unit housing in the left-right direction into the fan chamber, the compressor chamber, and the water circuit chamber, and arranging the compressor assembly and the water circuit heat exchange assembly in different compartments, a layout of the entire outdoor unit is more reasonable and a clear and orderly distribution of individual assemblies is ensured. In this way, mounting and disassembly of the entire outdoor unit are facilitated, which improves an assembly efficiency of the entire outdoor unit, and facilitates replacement and maintenance of individual assemblies. Further, by disposing the first electrical control box part between the fan chamber and the compressor chamber and disposing the second electrical control box part in the water circuit chamber, the layout of the entire outdoor unit becomes even more reasonable, facilitating connections between other members of the entire outdoor unit and the first and second electrical control box parts, as well as control over other members of the entire outdoor unit by the first electrical control box part and the second electrical control box part.

Additional aspects and advantages of the present disclosure will be provided at least in part in the following description, or will become apparent at least in part from the following description, or can be learned from practicing of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or additional aspects and advantages of the present disclosure will become more apparent and more understandable from the following description of embodiments taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic view of an outdoor unit according to some embodiments of the present disclosure.

FIG. 2 is a schematic partial view of the outdoor unit illustrated in FIG. 1.

FIG. 3 is a schematic assembled view of a sound insulation hood and a base of an outdoor unit according to some embodiments of the present disclosure, in which each of a first partition plate and a second partition plate forms a part of the sound insulation hood.

FIG. 4 is a partial cross-sectional view of the sound insulation hood illustrated in FIG. 3.

FIG. 5 is a schematic assembled view of a sound insulation hood and a base of an outdoor unit according to some other embodiments of the present disclosure.

FIG. 6 is a schematic partial view of the outdoor unit illustrated in FIG. 2, viewed from another perspective.

FIG. 7 is a schematic view of a first electrical control box part illustrated in FIG. 2.

FIG. 8 is a top view of the first electrical control box part illustrated in FIG. 7.

FIG. 9 is an exploded view of the first electrical control box part illustrated in FIG. 7.

FIG. 10 is a schematic assembled view of a main box body and an electrical control assembly illustrated in FIG. 9.

FIG. 11 is a schematic assembled view of a first electrical control box part and a first partition plate illustrated in FIG. 2.

FIG. 12 is an exploded view of the first electrical control box part and the first partition plate illustrated in FIG. 11.

FIG. 13 is a schematic assembled view of a water circuit heat exchange assembly and a base illustrated in FIG. 2.

FIG. 14 is a schematic view of the water circuit heat exchange assembly illustrated in FIG. 13.

FIG. 15 is a front view of the water circuit heat exchange assembly illustrated in FIG. 14.

FIG. 16 is an exploded view of a second electrical control box part illustrated in FIG. 2.

FIG. 17 is a schematic assembled view of an expansion tank and a base according to some embodiments of the present disclosure.

FIG. 18 is a schematic assembled view of a compressor assembly and a base illustrated in FIG. 2.

FIG. 19 is a top view of the compressor assembly and the base illustrated in FIG. 18.

FIG. 20 is a top view of a floating plate illustrated in FIG. 18.

FIG. 21 is a schematic assembled view of an auxiliary fixing assembly and a compressor assembly of an outdoor unit according to some embodiments of the present disclosure.

FIG. 22 is a schematic mounting view of a water circuit heat exchanger of an outdoor unit according to some embodiments of the present disclosure, in which the water circuit heat exchanger is connected to a floating plate by a mounting support.

FIG. 23 is a schematic mounting view of a water circuit heat exchanger of an outdoor unit according to some other embodiments of the present disclosure, in which the water circuit heat exchanger is disposed at an outer side of a sound insulation hood.

FIG. 24 is a schematic partial view of a compressor assembly of an outdoor unit according to some other embodiments of the present disclosure, in which a liquid accumulator is supported at a base.

FIG. 25 is a schematic assembled view of a sound insulation hood and a base of an outdoor unit according to some embodiments of the present disclosure, in which the sound insulation hood is of a split type, a top cover is divided into a first cover body and a second cover body, and a first hood sub-body has a U-shaped projection.

FIG. 26 is an exploded view of the sound insulation hood illustrated in FIG. 25.

FIG. 27 is an exploded view of a sound insulation hood of an outdoor unit according to some other embodiments of the present disclosure, in which the sound insulation hood is of a split type, a top cover is integrally formed, and a first hood sub-body is in a shape of a flat plate.

FIG. 28 is an exploded view of a sound insulation hood of an outdoor unit according to yet some other embodiments of the present disclosure, in which each of a first partition plate and a second partition plate forms a part of the sound insulation hood.

FIG. 29 is a schematic view of a sound insulation hood of an outdoor unit according to some other embodiments of the present disclosure, in which damping particles are provided between the sound insulation hood and a compressor assembly.

FIG. 30 is a schematic view of a compressor assembly illustrated in FIG. 2.

FIG. 31 is a schematic view of a compressor assembly of an outdoor unit according to some other embodiments of the present disclosure, in which a part of a return gas pipe is a rubber hose.

FIG. 32 is a schematic view of the return gas pipe illustrated in FIG. 31.

Reference numerals of the accompanying drawings:

• • 100: outdoor unit; 101: outdoor air inlet; 102: outdoor air outlet;
  • 10: outdoor unit housing; 11: fan chamber; 111: outdoor fan; 112: outdoor heat exchanger; 113: first partition plate; 113a: mounting opening; 1131: first air guide cover; 1131a: first surface; 1131b: heat dissipation air outlet; 1132: first air guide cavity; 1134: second air guide cover; 1134a: second surface; 1135: second air guide cavity; 1136: first partition sub-plate; 1137: second partition sub-plate; 1137a: main partition plate body; 1137b: flanged partition plate edge; 1137c: sound insulation portion; 1138: first air guide opening; 1139: second air guide opening; 12: compressor chamber; 121: second partition plate; 1211: wiring structure; 1211a: first wiring hole; 1211b: second wiring hole; 1212: piping opening; 1213: water circuit refrigerant pipe; 13: water circuit chamber; 14: vibration damping structure; 141: floating plate; 1411: avoidance recess; 142: first vibration damper; 143: second vibration damper; 144: first mounting hole; 145: second mounting hole; 16: base; 17: main housing body; 18: front panel; 181: first panel; 182: second panel;
  • 20: compressor assembly; 21: compressor; 211: liquid accumulation pipe; 212: exhaust port; 22: liquid accumulator; 221: return gas pipe; 2211: rubber hose; 222: return gas port; 25: sound insulation hood; 251: top cover; 2511: first cover body; 2512: second cover body; 2513: pipeline outlet; 2514: second sealing structure; 252: hood body; 2521: first hood sub-body; 2522: second hood sub-body; 2523: first hood plate; 2524: second hood plate; 2525: third hood plate; 2526: avoidance space; 253: damping particle; 254: sound insulation chamber; 26: mounting support; 27: four-way valve;
  • 30: first electrical control box part; 3: first electrical control box; 31: first electrical control box body; 311: main box body; 3111: flange; 3113: wiring outlet; 312: box cover;
  • 32: first electrical control assembly; 321: electrical control board; 322: component; 34: routing groove; 341: routing clearance; 35: guide portion;
  • 4: first heat dissipation member; 41: first heat dissipation fin; 42: first heat dissipation channel; 43: avoidance bevel; 44: second heat dissipation member; 441: second heat dissipation fin; 442: second heat dissipation channel;
  • 40: water circuit heat exchange assembly; 51: water circuit heat exchanger; 511: refrigerant inlet; 512: refrigerant outlet; 513: first water inlet; 514: first water outlet; 52: electric heater; 521: second water inlet; 522: second water outlet; 523: support bracket; 53: water pump; 54: water inlet pipe; 541: first water inlet pipe segment; 542: second water inlet pipe segment; 55: water outlet pipe; 551: water flow switch; 56: connection pipe; 57: water discharge pipe; 59: expansion tank;
  • 50: second electrical control box part; 61: main electrical control box body; 611: terminal block; 612: wiring passage hole; 62: electrical control box sub-body; 63: main control board; 631: first main control board; 632: second main control board; 64: electric heating control assembly; 641: alternating current contactor; 642: electric heating temperature controller;
  • 60: auxiliary fixing assembly; 7: bolt; 8: fixing support; 81: fixing plate; 811: limiting recess; 82: connection plate.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Embodiments of the present disclosure will be described in detail below with reference to examples thereof as illustrated in the accompanying drawings, throughout which same or similar elements, or elements having same or similar functions, are denoted by same or similar reference numerals. The embodiments described below with reference to the drawings are illustrative only, and are intended to explain, rather than limit, the present disclosure.

An outdoor unit 100 according to embodiments of the present disclosure will be described below with reference to FIG. 1 to FIG. 32.

As illustrated in FIG. 2 to FIG. 6, the outdoor unit 100 according to some embodiments of the present disclosure includes an outdoor unit housing 10, an outdoor heat exchanger 112, an outdoor fan 111, a compressor assembly 20, and a water circuit heat exchange assembly 40.

The outdoor unit housing 10 has a fan chamber 11, a compressor chamber 12, and a water circuit chamber 13 that are arranged in a left-right direction. The outdoor unit housing 10 has an outdoor air inlet 101 and an outdoor air outlet 102. Each of the outdoor air inlet 101 and the outdoor air outlet 102 is formed at the outdoor unit housing at an outer periphery of the fan chamber 11. For example, the outdoor air outlet 102 is formed at a front side wall of the outdoor unit housing 10, while the outdoor air inlet 101 is formed at each of a rear side wall and a left side wall of the outdoor unit housing 10.

It should be noted that an air outlet side of the outdoor unit 100 is defined as a front side.

The outdoor heat exchanger 112 and the outdoor fan 111 are disposed in the fan chamber 11. The compressor assembly 20 is disposed in the compressor chamber 12 and includes a compressor 21. The outdoor fan 111 is configured to drive outdoor air into the outdoor unit housing 10 from the outdoor air inlet 101 and to exchange heat with the outdoor heat exchanger 112. The air subjected to the heat exchange is discharged through the outdoor air outlet 102. The compressor assembly 20 is disposed in the outdoor unit housing 10 and can serve to compress and drive a refrigerant in a refrigerant circuit.

The water circuit heat exchange assembly 40 includes a water circuit heat exchanger 51 and a water pump 53. The water circuit heat exchanger 51 has a water flow path and a refrigerant flow path that are configured to exchange heat with each other. The water pump 53 is configured to drive water in the water flow path to flow. The compressor assembly 20 is configured to drive the refrigerant in the refrigerant flow path to flow. The water flow path of the water circuit heat exchanger 51 can be in communication with the water pump 53, allowing the water to flow into or out of the water circuit heat exchanger 51 under the drive of the water pump 53. The refrigerant flow path of the water circuit heat exchanger 51 can be connected to the compressor assembly 20, and the refrigerant in the refrigerant flow path can exchange heat with the water flow in the water flow path, achieving heating and cooling functions of the water circuit heat exchanger 51 for the water flow. The water circuit heat exchange assembly 40 can be configured to adjust a temperature of the water flow, achieving heating and cooling functions of the entire outdoor unit for the water flow. The water flow flowing out of the water circuit heat exchanger 51 can be delivered indoors to adjust a temperature of indoor domestic water or an indoor temperature.

At least the water circuit heat exchanger 51 and the water pump 53 of the water circuit heat exchange assembly 40 are disposed in the water circuit chamber 13. For example, the water circuit heat exchanger 51 and the water pump 53 of the water circuit heat exchange assembly 40 are disposed in the water circuit chamber 13, or the water circuit heat exchange assembly 40 is entirely disposed in the water circuit chamber 13. Such an arrangement enables the water circuit heat exchange assembly 40 and the compressor assembly 20 to be positioned in different compartments, making a layout of the entire outdoor unit more reasonable and facilitating an improvement in an overall assembly efficiency. In addition, a distribution of piping and parts between the water circuit heat exchange assembly 40 and the compressor assembly 20 can be facilitated, which facilitates assembly and maintenance of the entire outdoor unit and is beneficial in improving a maintenance efficiency of the entire outdoor unit.

The first electrical control box part is disposed between the fan chamber and the compressor chamber, while the second electrical control box part is disposed in the water circuit chamber, which can make the layout of the entire outdoor unit more reasonable and facilitate an improvement in the overall assembly efficiency. Further, connections between other members of the entire outdoor unit and the first and second electrical control box parts, as well as control over other members of the entire outdoor unit by the first electrical control box part 30 and the second electrical control box part 50 are facilitated.

With the outdoor unit 100 according to embodiments of the present disclosure, by dividing the outdoor unit housing 10 in the left-right direction into the fan chamber 11, the compressor chamber 12, and the water circuit chamber 13, the compressor assembly 20 and the water circuit heat exchange assembly 40 are located in different compartments, making a layout of the entire outdoor unit more reasonable and ensuring a clear and orderly distribution of individual assemblies. In this way, mounting and disassembly of the entire outdoor unit are facilitated, which improves an assembly efficiency of the entire outdoor unit, and facilitates replacement and maintenance of individual assemblies. Further, by disposing the first electrical control box part 30 between the fan chamber 11 and the compressor chamber 12 and disposing the second electrical control box part 50 in the water circuit chamber 13, the layout of the entire outdoor unit becomes even more reasonable, facilitating the connections between other members of the entire outdoor unit and the first and second electrical control box parts, as well as the control over other members of the entire outdoor unit by the first electrical control box part 30 and the second electrical control box part 50.

According to some embodiments of the present disclosure, at least one or more components 322 in the first electrical control box part 30 each have a greater power than a component 322 in the second electrical control box part 50. For example, some components 322 in the first electrical control box part 30 each have a greater power than the component 322 in the second electrical control box part 50, or all components 322 in the first electrical control box part 30 each have a greater power than the component 322 in the second electrical control box part 50.

During an operation of the component 322, an amount of heat generated by the component 322 is higher, when the power of the component 322 is higher. Thus, during an operation of the entire outdoor unit, the first electrical control box part 30 generates significantly more heat than the second electrical control box part 50. On the whole, centralized heat dissipation for the component 322 generating a large amount of heat can be achieved through performing heat dissipation on the first electrical control box part 30, which is conducive to improving overall heat dissipation performance for the component 322, reducing overall costs.

According to some embodiments of the present disclosure, as illustrated in FIG. 2, the first electrical control box part 30 is at least configured to control the outdoor fan 111 and the compressor 21. For example, a part of the first electrical control box part 30 is configured to control the compressor 21 and the outdoor fan 111, or the entire first electrical control box part 30 is configured to control the compressor 21 and the outdoor fan 111. The second electrical control box part 50 is configured to control the water circuit heat exchange assembly 40 or to control the water circuit heat exchange assembly 40 and the refrigerant flow path. For example, the second electrical control box part 50 may be configured to control the refrigerant flow path, i.e., the second electrical control box part 50 may be configured to control at least one of an electronic expansion valve and a four-way valve 27 that are connected to the refrigerant flow path. For example, the second electrical control box part 50 may be configured to control the water circuit heat exchange assembly 40, i.e., the second electrical control box part 50 may be configured to control the water pump 53 in the water circuit heat exchange assembly 40.

By disposing the first electrical control box part 30 and the second electrical control box part 50 in the outdoor unit housing 10, and enabling the first electrical control box part 30 and the second electrical control box part 50 to control different components separately, an arrangement and a layout of electrical control structures can be made more flexible, which enables components inside the outdoor unit 100 to be positioned closer to corresponding electrical control structures, reducing a length of a connection wiring harnesses. In addition, replacement and maintenance of an electrical control part and an overall outdoor unit structure can be facilitated, improving an overall maintenance efficiency.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 6, a thickness direction of the first electrical control box part 30 is set in the left-right direction. Such an arrangement allows the first electrical control box part 30 to fully utilize a space of the entire outdoor unit in the front-rear direction and an up-down direction. In this way, the first electrical control box part 30 has a small size in the left-right direction, which can therefore reduce a size of the entire outdoor unit in the left-right direction.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 6, a thickness direction of the second electrical control box part 50 is set in the left-right direction. Such an arrangement allows the second electrical control box part 50 to fully utilize the space of the entire outdoor unit in the front-rear direction and the up-down direction. In this way, the second electrical control box part 50 has a small size in the left-right direction, which can therefore reduce the size of the entire outdoor unit in the left-right direction.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 6, a length direction of the first electrical control box part 30 is set in the up-down direction. Such an arrangement allows the first electrical control box part to fully utilize an extra space defining by upper parts of a portion where the fan chamber 11 is adjacent to the compressor chamber 12, making an overall structure more compact and improving utilization of an entire space.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 6, a length direction of the second electrical control box part 50 is set in the up-down direction. Such an arrangement allows the second electrical control box part 50 to fully utilize an extra space defining by an upper part of the water circuit chamber 13, making the overall structure more compact and improving the utilization of the entire space.

According to some embodiments of the present disclosure, the first electrical control box part 30 is electrically connected to the second electrical control box part 50, and the second electrical control box part 50 includes a terminal block 611 electrically connected to an external power source. The external power source can be configured to supply electrical energy to the entire second electrical control box part 50 through an electrical connection to the terminal block 611. Since the second electrical control box part 50 is electrically connected to the first electrical control box part 30, the second electrical control box part 50 can supply electrical energy to the first electrical control box part 30, and a transmission of control signals between the second electrical control box part 50 and the first electrical control box part 30 can be enabled.

According to some embodiments of the present disclosure, a part of a wiring harness electrically connecting the first electrical control box part 30 to the second electrical control box part 50 is adapted to extend above the compressor assembly 20. Such an arrangement can make full use of a space located above the compressor assembly 20, which makes the overall structure more compact and improves the utilization of the entire space. In addition, such an arrangement allows for a more reasonable routing layout of the wiring harness electrically connecting the first electrical control box part 30 and the second electrical control box part 50, facilitating replacement and maintenance of the wiring harness between the first electrical control box part 30 and the second electrical control box part 50.

According to some embodiments of the present disclosure, as illustrated in FIG. 2, a second partition plate 121 is disposed between the compressor chamber 12 and the water circuit chamber 13. By using the second partition plate 121 to separate the water circuit chamber 13 from the compressor chamber 12, the layout of the entire outdoor unit becomes more reasonable, facilitating maintenance and replacement of different members. The second partition plate 121 has a wiring structure 1211 formed an upper part of the second partition plate 121. The part of the wiring harness electrically connecting the first electrical control box part 30 to the second electrical control box part 50 is adapted to extend above the compressor assembly and extend to the water circuit chamber 13 via the wiring structure 1211. In this way, the wiring harness electrically connecting the first electrical control box part 30 to the second electrical control box part 50 can be located in the upper parts of both the compressor chamber and the water circuit chamber during routing of the wiring harness, which makes a routing path of the wiring harness electrically connecting the first electrical control box part 30 to the second electrical control box part 50 short, reducing a length of the wiring harness electrically connecting the first electrical control box part 30 to the second electrical control box part 50. Therefore, a connection between the first electrical control box part 30 and the second electrical control box part 50 as well as control by the first electrical control box part 30 and the second electrical control box part 50 can be facilitated.

According to some embodiments of the present disclosure, a wiring harness connected to an electrical control assembly of the first electrical control box part 30 includes a first electrical control wiring harness and a second electrical control wiring harness that are separately disposed. Separating routing of the first electrical control wiring harness from routing of the second electrical control wiring harness can avoid electromagnetic interference between the first electrical control wiring harness and the second electrical control wiring harness, ensuring stability of the first electrical control wiring harness and the second electrical control wiring harness. For example, the first electrical control wiring harness carries a high voltage, while the second electrical control wiring harness carries a low voltage.

The first electrical control wiring harness includes a first electrical control wiring sub-harness, a second electrical control wiring sub-harness, and a third electrical control wiring sub-harness. The first electrical control wiring sub-harness is electrically connected to the terminal block connected to the external power source. Thus, the terminal block can supply electrical energy to the electrical control assembly of the first electrical control box part 30 through the first electrical control wiring sub-harness, ensuring a normal operation of the electrical control assembly. The second electrical control wiring sub-harness is electrically connected to the compressor 21. Thus, the electrical control assembly of the first electrical control box part 30 can supply electrical energy to the compressor 21 through the second electrical control wiring sub-harness, ensuring normal start-up of the compressor 21. The third electrical control wiring sub-harness is electrically connected to the outdoor fan 111. Thus, the electrical control assembly of the first electrical control box part 30 can supply electrical energy to the outdoor fan 111 through the third electrical control wiring sub-harness, ensuring normal start-up of the outdoor fan 111.

The second electrical control wiring harness is electrically connected to a main control board of the second electrical control box part 50. Thus, the second electrical control wiring harness can be used for transmitting control signals between the first electrical control box part 30 and the second electrical control box part 50. In this way, it ensures that members such as the compressor 21 and the outdoor fan 111 are monitored by the second electrical control box part 50, enabling the entire outdoor unit to control individual members.

According to some embodiments of the present disclosure, a second partition plate 121 is disposed between the compressor chamber 12 and the water circuit chamber 13. By using the second partition plate 121 to separate the water circuit chamber 13 from the compressor chamber 12, the layout of the entire outdoor unit becomes more reasonable, facilitating the maintenance and the replacement of different members.

The second partition plate 121 has a wiring structure 1211 formed at an upper part of the second partition plate 121. The wiring structure 1211 has a first wiring hole 1211a and a second wiring hole 1211b spaced apart from the first wiring hole 1211a in a front-rear direction. The first electrical control wiring sub-harness is adapted to extend above the compressor assembly 20 and extend to the water circuit chamber 13 via the first wiring hole 1211a. The second electrical control wiring harness is adapted to extend above the compressor assembly 20 and extend to the water circuit chamber 13 via the second wiring hole 1211b.

In this way, a routing path of the first electrical control wiring sub-harness at the upper part of the second partition plate 121 can be spaced apart in the front-rear direction from a routing path of the second electrical control wiring harness at the upper part of the second partition plate 121. Thus, electromagnetic interference between the first electrical control wiring sub-harness and the second electrical control wiring harness can be better avoided, ensuring stability of the first electrical control wiring sub-harness and the second electrical control wiring harness. In addition, the first electrical control wiring sub-harness and the second electrical control wiring harness can be located in the upper parts of both the compressor chamber and the water circuit chamber during routing of the first electrical control wiring sub-harness and the second electrical control wiring harness, which makes routing paths of the first electrical control wiring sub-harness and the second electrical control wiring harness short, reducing lengths of the first electrical control wiring sub-harness and the second electrical control wiring harness. Therefore, the connection between the first electrical control box part 30 and the second electrical control box part 50 as well as the control by the first electrical control box part 30 and the second electrical control box part 50 can be facilitated.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 3, the compressor assembly 20 is provided with a sound insulation hood 25 inside the compressor assembly 20. The sound insulation hood 25 is configured to cover the compressor assembly 20 at an outer side of the compressor assembly 20. During an operation, the compressor 21 radiates noise outwards. Since the sound insulation hood 25 is disposed outside the compressor assembly 20, noise radiated outwards by the compressor assembly 20 can be reduced, providing sound insulation for the compressor assembly 20.

The first electrical control wiring sub-harness is adapted to extend to the second partition plate 121 along an outer surface of the sound insulation hood 25, extend upwards to the first wiring hole 1211a along the second partition plate 121, and then extend to the water circuit chamber 13 via the first wiring hole 1211a. Such an arrangement can facilitate overall fixation of the routing path of the first electrical control wiring sub-harness, which avoids a problem that the first electrical control wiring sub-harness shakes during an operation of the entire outdoor unit and is disconnected from the first electrical control box part 30 or the second electrical control box part 50, ensuring stability and reliability of a connection of the first electrical control wiring sub-harness.

The second electrical control wiring harness is adapted to extend to the second partition plate 121 along the outer surface of the sound insulation hood 25, extend upwards to the second wiring hole 1211b along the second partition plate 121, and then extend to the water circuit chamber 13 via the second wiring hole 1211b. Such an arrangement can facilitate overall fixation of the routing path of the first electrical control wiring sub-harness, which avoids a problem that the second electrical control wiring harness shakes during an operation of the entire outdoor unit and is disconnected from the first electrical control box part 30 or the second electrical control box part 50, ensuring the stability and the reliability of the connection of the second electrical control wiring harness.

For example, a routing fixation structure may be disposed at each of the outer surface of the sound insulation hood 25 and a side of the second partition plate 121 close to the compressor chamber 12, which can help fix the first electrical control wiring sub-harness and the second electrical control wiring harness, improving stability and reliability of an electrical connection between the first electrical control box part and the second electrical control box part 50.

According to some embodiments of the present disclosure, a part of the first electrical control wiring sub-harness that extends along the outer surface of the sound insulation hood 25 is spaced apart in the front-rear direction from a part of the second electrical control wiring harness that extends along the outer surface of the sound insulation hood 25. In this way, the routing path of the first electrical control wiring sub-harness in the compressor chamber 12 is spaced apart in the front-rear direction from the routing path of the second electrical control wiring harness in the compressor chamber 12. Thus, electromagnetic interference between the first electrical control wiring sub-harness and the second electrical control wiring harness can be better avoided during the routing of the first electrical control wiring sub-harness and the second electrical control wiring harness, ensuring the stability of the first electrical control wiring sub-harness and the second electrical control wiring harness.

According to some embodiments of the present disclosure, as illustrated in FIG. 3, the second electrical control wiring sub-harness is adapted to extend to a top of the sound insulation hood 25 along an outer surface of the sound insulation hood 25, and extend downwards through a pipeline outlet 2513 located at the top of the sound insulation hood 25, so that the second electrical control wiring sub-harness is electrically connected to the compressor 21. Such an arrangement can make a routing path of the second electrical control wiring sub-harness short, reducing a length of the second electrical control wiring sub-harness. Therefore, a connection between the first electrical control box part 30 and the compressor 21 as well as control over the compressor by the first electrical control box part can be facilitated.

According to some embodiments of the present disclosure, as illustrated in FIG. 3, a first partition plate 113 is disposed between the fan chamber 11 and the compressor chamber 12. By using the first partition plate 113 to separate the fan chamber 11 from the compressor chamber 12, the layout of the entire outdoor unit becomes more reasonable, facilitating the maintenance and the replacement of different members.

The third electrical control wiring sub-harness is adapted to extend to the first partition plate 113 along an outer surface of the sound insulation hood 25, and extend to the fan chamber 11 by passing through the first partition plate 113, so that the third electrical control wiring sub-harness is electrically connected to the outdoor fan 111. Such an arrangement can make a routing path of the third electrical control wiring sub-harness short, reducing a length of the third electrical control wiring sub-harness. Therefore, a connection between the first electrical control box part 30 and the outdoor fan 111 and a control over the outdoor fan by the first electrical control box part can be facilitated.

For example, the first partition plate 113 may have a third wiring hole. The third wiring hole may be formed at a rear side of the first partition plate 113 that is opposite to the sound insulation hood. The third electrical control wiring sub-harness is adapted to extend to the third wiring hole of the first partition plate 113 along the outer surface of the sound insulation hood 25, and extend to the fan chamber 11 via the third wiring hole, which can make the routing path of the third electrical control wiring sub-harness short, facilitating the connection between the first electrical control box part 30 and the outdoor fan 111 as well as control over the outdoor fan by the first electrical control box part.

According to some embodiments of the present disclosure, as illustrated in FIG. 9, the first electrical control box part 30 includes a first electrical control box 3. The first electrical control box 3 includes a first electrical control box body 31 and a first electrical control assembly 32 disposed in the first electrical control box body 31. The first electrical control box body 31 can provide accommodation and protection for the first electrical control assembly 32. The first electrical control assembly 32 can be configured to control operation states of other members. The first electrical control box body 31 includes a main box body 311 and a box cover 312 connected to the main box body 311. Each of the main box body 311 and the box cover 312 is formed independently. The first electrical control assembly 32 is disposed in the first electrical control box body 31.

According to some embodiments of the present disclosure, as illustrated in FIG. 2, the first partition plate 113 is disposed between the fan chamber 11 and the compressor chamber 12. By using the first partition plate 113 to separate the fan chamber 11 from the compressor chamber 12, the layout of the entire outdoor unit becomes more reasonable, facilitating the maintenance and the replacement of different members. The first electrical control box part 30 is withdrawably disposed at the first partition plate 113. The first electrical control box part 30 and the first partition plate 113 are assembled by means of a withdrawable structure, which is simple in structure and convenient to operate. In this way, mounting and removal of the first electrical control box part 30 can be facilitated, improving the overall assembly efficiency.

According to some embodiments of the present disclosure, as illustrated in FIG. 2, the second partition plate 121 is disposed between the compressor chamber 12 and the water circuit chamber 13. By using the second partition plate 121 to separate the compressor chamber 12 from the water circuit chamber 13, the layout of the entire outdoor unit becomes more reasonable, facilitating the maintenance and the replacement of different members. The second electrical control box part 50 is withdrawably disposed at the second partition plate 121. The second electrical control box part 50 and the second partition plate 121 are assembled by means of a withdrawable structure, which is simple in structure and convenient to operate. In this way, mounting and removal of the second electrical control box part 50 can be facilitated, improving the overall assembly efficiency.

According to some embodiments of the present disclosure, as illustrated in FIG. 7, the first electrical control box part 30 includes the first electrical control box 3 and a heat dissipation member 4. The first electrical control box 3 includes the first electrical control box body 31 and the first electrical control assembly 32 disposed in the first electrical control box body 31. The first electrical control box 3 is provided with a guide portion 35. The first partition plate 113 has a guide groove extending in the up-down direction. During withdrawal of the first electrical control box part 30, the guide portion 35 is adapted to slide along the guide groove in the up-down direction. Thus, the first electrical control box 3 can be guided through an engagement between the guide groove and the guide portion 35, which facilitates sliding of the first electrical control box part 30 in the up-down direction. In this way, smoother withdrawal of the first electrical control box part 30 can be achieved, facilitating maintenance and replacement of the first electrical control box part 30. In addition, the engagement between the guide groove and the guide portion 35 can limit a position of the first electrical control box 3 to help achieve quick positioning of the first electrical control box 3, which is beneficial in improving the overall assembly efficiency. For example, two guide portions 35 may be provided and respectively located at a front side and a rear side of the first electrical control box 3. Two guide grooves may be formed and respectively located at a front side and a rear side of the first partition plate 113.

According to some embodiments of the present disclosure, the first partition plate 113 includes a support plate for supporting the first electrical control box part 30. A bottom surface of the first electrical control box part 30 is supported at the support plate. The first electrical control box part 30 may be mounted, through the guide portion 35, at the first partition plate 113 along the guide groove of the first partition plate 113. When the bottom surface of the first electrical control box part 30 is in contact with the support plate of the first partition plate 113, assembly of the first electrical control box part 30 with the first partition plate 113 is completed. The support plate can provide support and positioning for the first electrical control box part 30.

For example, according to some embodiments of the present disclosure, when the first electrical control box part 30 needs to be mounted, the first electrical control box part 30 may be moved downwards along the guide groove of the first partition plate 113 through the guide portion 35, until the bottom surface of the first electrical control box part 30 is in contact with the support plate of the first partition plate 113, and then a first air guide cover 1131 may be mounted at the first partition plate 113, in such a manner that mounting of the first electrical control box part 30 is completed. When the first electrical control box part 30 needs to be removed, the first air guide cover 1131 may be removed from the first partition plate 113, and then the first electrical control box part 30 may be moved upwards along the guide groove of the first partition plate 113 through the guide portion 35, until the first electrical control box part 30 is separated from the first partition plate 113. In this way, removal of the first electrical control box part 30 is completed.

According to some embodiments of the present disclosure, as illustrated in FIG. 2, at least one of the first electrical control box part 30 and the second electrical control box part 50 is withdrawable in the up-down direction. For example, the first electrical control box part 30 is withdrawable in the up-down direction, or the second electrical control box part 50 is withdrawable in the up-down direction, or both the first electrical control box part 30 and the second electrical control box part 50 are withdrawable in the up-down direction. On one hand, such an arrangement can facilitate mounting and removal of each of the first electrical control box part 30 and the second electrical control box part 50, making it convenient to replace and maintain components 322 inside the first electrical control box part 30 and the second electrical control box part 50. On the other hand, by enabling the at least one of the first electrical control box part 30 and the second electrical control box part 50 to be withdrawable in the up-down direction, gravity of the first electrical control box part 30 and the second electrical control box part 50 can be utilized to realize assembly of the first electrical control box part 30 and the second electrical control box part 50 with the entire outdoor unit when the first electrical control box part 30 and the second electrical control box part 50 need to be mounted at the first partition plate 113 and second partition plate 121, respectively. In this way, it facilitates reducing difficulty of the assembly, improving an operation efficiency, and lowering costs.

According to some embodiments of the present disclosure, as illustrated in FIG. 5 and FIG. 28, the second partition plate 121 is disposed between the compressor chamber 12 and the water circuit chamber 13. By using the second partition plate 121 to separate the compressor assembly 20 from the water circuit heat exchange assembly 40, the layout of the entire outdoor unit becomes more reasonable, facilitating the maintenance and the replacement of different members.

The second partition plate 121 has a piping opening 1212 at a lower part of the second partition plate 121. In the compressor chamber 12, a refrigerant pipe adapted to be connected to the water circuit heat exchanger 51 is referred to as a water circuit refrigerant pipe 1213. The water circuit refrigerant pipe 1213 is adapted to pass through the piping opening 1212 to extend to the water circuit chamber 13, which can realize a short refrigerant flow path between the compressor assembly 20 and the water circuit heat exchanger. Thus, an overall length of the water circuit refrigerant pipe 1213 can be reduced to save costs. In addition, a connection between the compressor assembly 20 and the water circuit heat exchanger can be facilitated, improving the assembly efficiency.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 9, the first partition plate 113 is disposed between the fan chamber 11 and the compressor chamber 12. By using the first partition plate 113 to separate the fan chamber 11 from the compressor chamber 12, the layout of the entire outdoor unit becomes more reasonable, facilitating the maintenance and the replacement of different members.

The first electrical control box part 30 is disposed at the first partition plate 113 and includes the first electrical control box 3. The first electrical control box 3 includes the first electrical control box body 31 and the first electrical control assembly 32 disposed in the first electrical control box body 31. The first electrical control assembly 32 includes an electrical control board 321 and a component 322 disposed at the electrical control board 321. The first electrical control box body 31 can provide the accommodation and the protection for the first electrical control assembly 32. The first electrical control assembly 32 can be configured to control operation states of other members.

The electrical control board 321 has two opposite sides in a thickness direction of the electrical control board, which are defined as a first side and a second side. A plurality of components 322 are provided. At least one or more of the plurality of components 322 are disposed on the first side of the electrical control board 321. For example, one or more of the components 322 at the electrical control board 321 are disposed on the first side of the electrical control board 321, or all of the components 322 at the electrical control board 321 are disposed on the first side of the electrical control board 321. The first side of the electrical control board 321 faces the fan chamber 11.

During an operation of the first electrical control assembly 32 in the first electrical control box 3, the components of the first electrical control assembly 32 generate a large amount of heat, causing an excessively high temperature inside the first electrical control box 3. If overall heat dissipation performance of the first electrical control box 3 is unsatisfactory, control performance of the first electrical control assembly 32 over other members is affected and problems such as aging or failure of the components 322 are caused. Therefore, by orienting the first side of the electrical control board 321 towards the fan chamber 11, a distance between the components 322 disposed on the first side of the electrical control board 321 and the fan chamber 11 is short. Considering that the outdoor fan 111 is disposed in the fan chamber 11, heat exchange between the outdoor heat exchanger 112 and air can be enhanced by the outdoor fan 111 through generating flowing of the air. In a process in which the outdoor fan 111 drives the air to flow, orienting the first side of the electrical control board 321 towards the fan chamber 11 enables the heat generated by the components 322 on the first side of the electrical control board 321 to be carried away through the flowing of the air in the fan chamber 11, which is conducive to improving an overall heat dissipation efficiency of the first electrical control assembly 32, extending a service life of the first electrical control assembly 32.

According to some embodiments of the present disclosure, at least one or more of the plurality of components 322 are power components. For example, one or more of the plurality of components 322 are power components, or all of the plurality of components 322 are power components. A large amount of heat is generated by the power component. At least one or more of the power components are located on the first side of the electrical control board 321. For example, some of the power components are located on the first side of the electrical control board 321, or all of the power components are located on the first side of the electrical control board 321. During the operation of the first electrical control assembly 32, the power components generate more heat than other components 322. Thus, positioning at least one or more of the power components on the first side of the electrical control board 321 shortens a distance between the power components and the fan chamber 11. In this way, the overall heat dissipation efficiency of the first electrical control assembly 32 is improved, ensuring a normal operation of the first electrical control assembly 32.

According to some embodiments of the present disclosure, as illustrated in FIG. 2, the first electrical control box part 30 includes a first heat dissipation member 4. The first electrical control box 3 is provided with the first heat dissipation member 4 at a side of the first electrical control box 3 close to the fan chamber 11. At least part of the first heat dissipation member 4 is located in the fan chamber 11. For example, the first heat dissipation member 4 may be partially or entirely located in the fan chamber 11. The first heat dissipation member 4 can provide heat dissipation and cooling for the first electrical control assembly 32. The heat generated by the first electrical control assembly 32 during operation is transferred to the first electrical control box 3, and transferred from the first electrical control box 3 to the first heat dissipation member 4. The heat from the first electrical control box 3 can be dissipated by the first heat dissipation member 4 to an outside. In this way, the heat dissipation and the cooling of the first electrical control assembly 32 can be achieved by the first heat dissipation member 4.

Since the outdoor fan 111 is disposed in the fan chamber 11, the heat exchange between the outdoor heat exchanger 112 and the air can be enhanced by the outdoor fan 111 through generating the flowing of the air. The first heat dissipation member 4 is disposed at the side of the first electrical control box 3 close to the fan chamber 11. The at least part of the first heat dissipation member 4 is located in the fan chamber 11. During the operation of the outdoor fan 111, the heat from the first heat dissipation member 4 can be quickly carried away through the flowing of the air in the fan chamber 11, which can improve overall heat dissipation performance of the first heat dissipation member 4. Accordingly, a heat dissipation efficiency of the first heat dissipation member 4 for the first electrical control assembly 32 can be improved.

According to some embodiments of the present disclosure, as illustrated in FIG. 7, a surface of the first heat dissipation member 4 facing the fan chamber 11 includes an avoidance bevel 43 configured to avoid interference with the outdoor fan 111. The avoidance bevel 43 extends obliquely away from the outdoor fan 111 in a direction from top to bottom. The avoidance bevel 43 ensures a predetermined safety gap between the first heat dissipation member 4 and the outdoor fan 111 to prevent collisions between the first heat dissipation member 4 and the outdoor fan 111, ensuring safety performance of the first heat dissipation member 4. Meanwhile, heat dissipation and cooling provided by the outdoor fan 111 for the first heat dissipation member 4 can be ensured, and a heat dissipation efficiency of the first heat dissipation member 4 for the first electrical control box 3 can be guaranteed.

According to some embodiments of the present disclosure, as illustrated in FIG. 7 and FIG. 8, the first heat dissipation member 4 includes a plurality of first heat dissipation fins 41 arranged at intervals. The plurality of first heat dissipation fins 41 may be uniformly arranged at intervals in the front-rear direction. The plurality of first heat dissipation fins 41 can increase a heat exchange area of the first heat dissipation member 4 and improve the heat dissipation efficiency of the first heat dissipation member 4. A first heat dissipation channel 42 extending in the up-down direction is defined between adjacent first heat dissipation fins 41. An airflow is adapted to flow through the first heat dissipation channel 42 in the up-down direction. A plurality of first heat dissipation channels 42 may be formed and arranged at intervals in the front-rear direction. The outdoor fan 111 mainly uses the flowing of the air to dissipate heat from surrounding components. The outdoor fan 111 in operation enables the airflow to flow through the first heat dissipation channel 42 between adjacent first heat dissipation fins 41. When flowing in the first heat dissipation channel 42, the airflow can exchange heat with the adjacent first heat dissipation fins 41. As a result, after the airflow flows out of the first heat dissipation channel 42, the heat from the first heat dissipation fin 41 can be carried away to realize the heat dissipation and the cooling of the first heat dissipation member 4, in such a manner that the first heat dissipation member 4 provides better heat dissipation for the first electrical control box 3.

Given that a rotation axis of the outdoor fan 111 extends in the front-rear direction while the first heat dissipation channel 42 extends in the up-down direction, an extension direction of the first heat dissipation channel 42 is perpendicular to an extension direction of the rotation axis of the outdoor fan 111. During a rotation of the outdoor fan 111, such an arrangement facilitates flowing of the airflow along the first heat dissipation channel 42, in such a manner that the outdoor fan 111 provides better heat dissipation for the first heat dissipation member 4.

According to some embodiments of the present disclosure, as illustrated in FIG. 2, FIG. 3, FIG. 5, and FIG. 6, the outdoor unit includes at least one of a first air guide cover 1131 and a second air guide cover 1134. For example, the outdoor unit may include one or both of the first air guide cover 1131 and the second air guide cover 1134.

The first air guide cover 1131 is located at a top of the first heat dissipation member 4. The second air guide cover 1134 is located at a bottom of the first heat dissipation member 4. Each of the first air guide cover 1131 and the second air guide cover 1134 is configured to guide an airflow in the compressor chamber 12 to the first heat dissipation member 4. The first air guide cover 1131 can be configured to guide the airflow at the top of the first heat dissipation member 4, while the second air guide cover 1134 can be configured to guide the airflow at the bottom of the first heat dissipation member 4. When the outdoor fan 111 is in operation, an air pressure in the fan chamber 11 is lower than that in the compressor chamber 12, causing the air from the compressor chamber 12 to flow towards the fan chamber 11. A portion of the air from the compressor chamber 12 can flow to the top of the first heat dissipation member 4 along the first air guide cover 1131, and flow to the fan chamber 11 along a surface of the first heat dissipation member 4. Another portion of the air from the compressor chamber 12 can flow to the bottom of the first heat dissipation member 4 along the second air guide cover 1134 and can flow to the fan chamber 11 along the surface of the first heat dissipation member 4. As the airflow flows along the surface of the first heat dissipation member 4, the heat from the first heat dissipation member 4 can be carried away, achieving satisfactory heat dissipation and cooling of the first heat dissipation member 4.

According to some embodiments of the present disclosure, as illustrated in FIG. 2, FIG. 3, FIG. 5, and FIG. 6, a first air guide cavity 1132 is defined between the first air guide cover 1131 and the first heat dissipation member 4, or the first air guide cavity 1132 is defined by the first air guide cover 1131, the first heat dissipation member 4, and the first partition plate 113 together. The compressor chamber 12 is in communication with the first heat dissipation channel 42 through the first air guide cavity 1132.

A first air guide opening 1138 is formed at a side of the first air guide cover 1131 facing the compressor chamber 12. The airflow in the compressor chamber 12 is adapted to flow into the first air guide cavity 1132 from the first air guide opening 1138 and flow downwards through the first heat dissipation channel 42. When in operation, the outdoor fan 111 drives the air in the fan chamber 11 to flow outwards, enabling the air pressure inside the fan chamber 11 to be lower than that in the compressor chamber 12. The compressor chamber 12 is in communication with an upper part of the first heat dissipation channel 42 through the first air guide cavity 1132, and the first heat dissipation channel 42 is in communication with the fan chamber 11. Accordingly, due to the air pressure difference between the fan chamber 11 and the compressor chamber 12, the air from the compressor chamber 12 can flow into the first air guide cavity 1132 through the first air guide opening 1138 at the first air guide cover 1131. The air in the first air guide cavity 1132 can flow downwards along the first heat dissipation channel 42 to exit the first heat dissipation channel 42, and enter the fan chamber 11. When flowing through the first heat dissipation channel 42, the airflow can exchange heat with the adjacent first heat dissipation fins 41. As a result, when the airflow flows out of the first heat dissipation channel 42, the airflow can carry away the heat from the first heat dissipation fins 41, achieving heat dissipation for the first heat dissipation member 4 and consequently improving heat dissipation provided by the first heat dissipation member 4 for the first electrical control box 3.

According to some embodiments of the present disclosure, as illustrated in FIG. 11, the first air guide cover 1131 has a first surface 1131a facing the fan chamber 11. A part of the first surface 1131a adjacent to the first heat dissipation member 4 is flush with the surface of the first heat dissipation member 4 facing the fan chamber 11. In this way, the airflow in the first air guide cavity 1132 can be ensured to flow along the first air guide cover 1131 to the first heat dissipation channel 42 under guidance of the first air guide cover 1131, better improving heat dissipation provided by the outdoor fan 111 for the first heat dissipation member 4.

According to some embodiments of the present disclosure, as illustrated in FIG. 11 and FIG. 12, the first heat dissipation member 4 has an upper end located in the first air guide cover 1131. In this way, the airflow in the first air guide cavity 1132 can flow along the first heat dissipation channel 42 of the first heat dissipation member 4 under the guidance of the first air guide cover 1131, making the airflow flowing inside the first heat dissipation channel 42 abundant. Consequently, an amount of heat exchanged between the airflow and the adjacent first heat dissipation fins 41 can be increased to achieve better overall heat dissipation for the first heat dissipation member 4. For example, a distance in a horizontal direction between a part of the first surface 1131a of the first air guide cover 1131 close to the first heat dissipation member 4 and the surface of the first heat dissipation member 4 facing the fan chamber 11 may range from 0 mm to 5 mm, which can better improve the heat dissipation provided by the outdoor fan 111 for the first heat dissipation member 4.

According to some embodiments of the present disclosure, as illustrated in FIG. 2, FIG. 3, FIG. 5, and FIG. 6, a second air guide cavity 1135 is defined between the second air guide cover 1134 and the first heat dissipation member 4, or the second air guide cavity 1135 is defined by the second air guide cover 1134, the first heat dissipation member 4, and the first partition plate 113 together. The compressor chamber 12 is in communication with the first heat dissipation channel 42 through the second air guide cavity 1135. The second air guide cover 1134 can provide guidance for the airflow at the bottom of the first heat dissipation member 4. When in operation, the outdoor fan 111 enables the air pressure inside the fan chamber 11 to be lower than that inside the compressor chamber 12. The compressor chamber 12 is in communication with the first heat dissipation channel 42 through the second air guide cavity 1135, and the first heat dissipation channel 42 is in communication with the fan chamber 11. Accordingly, the air from the compressor chamber 12 can flow into the fan chamber 11 after sequentially flowing through the first air guide cavity 1132 and the first heat dissipation channel 42 under the effect of the air pressure difference between the fan chamber 11 and the compressor chamber 12. When flowing through the first heat dissipation channel 42, the airflow can exchange heat with the adjacent first heat dissipation fins 41. As a result, when the airflow flows out of the first heat dissipation channel 42, the airflow can carry away the heat from the first heat dissipation fins 41, achieving the heat dissipation for the first heat dissipation member 4 and consequently improving the heat dissipation provided by the first heat dissipation member 4 for the first electrical control box 3.

According to some embodiments of the present disclosure, as illustrated in FIG. 11, the second air guide cover 1134 has a second surface 1134a facing the fan chamber 11. A part of the second surface 1134a close to the first heat dissipation member 4 is flush with the surface of the first heat dissipation member 4 facing the fan chamber 11. In this way, the airflow in the second air guide cavity 1135 can be ensured to flow along the second air guide cover 1134 to the first heat dissipation channel 42 under guidance of the second air guide cover 1134, better improving the heat dissipation provided by the outdoor fan 111 for the first heat dissipation member 4.

According to some embodiments of the present disclosure, as illustrated in FIG. 11 and FIG. 12, the first heat dissipation member 4 has a lower end located in the second air guide cover 1134. In this way, the airflow in the second air guide cavity 1135 can flow along the first heat dissipation channel 42 of the first heat dissipation member 4 under the guidance of the second air guide cover 1134, making the airflow flowing inside the first heat dissipation channel 42 abundant. Consequently, the amount of heat exchanged between the airflow and the adjacent first heat dissipation fins 41 can be increased to achieve better overall heat dissipation for the first heat dissipation member 4. For example, a distance in the horizontal direction between a part, close to the first heat dissipation member 4, of the second surface 1134a of the second air guide cover 1134 and the surface of the first heat dissipation member 4 facing the fan chamber 11 may range from 0 mm to 5 mm, which can better improve the heat dissipation provided by the outdoor fan 111 for the first heat dissipation member 4.

According to some embodiments of the present disclosure, as illustrated in FIG. 12, the second air guide cavity 1135 is in communication with the compressor chamber 12 through a second air guide opening 1139. The airflow in the compressor chamber 12 is adapted to flow into the second air guide cavity 1135 from the second air guide opening 1139 and flow upwards through the first heat dissipation channel 42. When in operation, the outdoor fan 111 drives the air in the fan chamber 11 to flow outwards, enabling the air pressure inside the fan chamber 11 to be lower than that in the compressor chamber 12. The compressor chamber 12 is in communication with a lower part of the first heat dissipation channel 42 through the second air guide cavity 1135, and the first heat dissipation channel 42 is in communication with the fan chamber 11. Accordingly, the air from the compressor chamber 12 can flow into the second air guide cavity 1135 through the second air guide opening 1139 under the effect of the air pressure difference between the fan chamber 11 and the compressor chamber 12. The air in the second air guide cavity 1135 can flow upwards along the first heat dissipation channel 42 to exit the first heat dissipation channel 42, and then enter the fan chamber 11. When flowing through the first heat dissipation channel 42, the airflow can exchange heat with the adjacent first heat dissipation fins 41. As a result, when the airflow flows out of the first heat dissipation channel 42, the airflow can carry away the heat from the first heat dissipation fins 41, achieving the heat dissipation for the first heat dissipation member 4 and consequently improving the heat dissipation provided by the first heat dissipation member 4 for the first electrical control box 3.

According to some embodiments of the present disclosure, as illustrated in FIG. 3 and FIG. 4, the sound insulation hood 25 is configured to cover the compressor assembly 20 at an outside of the compressor assembly 20. The sound insulation hood can provide sound absorption and noise insulation for the compressor assembly 20, effectively reducing overall noise of the outdoor unit 100. A sound insulation chamber 254 configured to accommodate the compressor assembly 20 is defined between the sound insulation hood 25 and a base 16 of the outdoor unit housing 10. The second air guide opening 1139 is located outside the sound insulation hood 25. In this way, noise generated by the compressor assembly 20 inside the sound insulation chamber 254 can be prevented from being transmitted out through the second air guide opening 1139, ensuring an overall noise reduction effect on the compressor assembly 20. Further, the second air guide opening 1139 is formed at an outer side of the sound insulation hood 25, which can also ensure that the air in the compressor chamber 12 can quickly flow towards the second air guide cavity 1135, which achieves a large ventilation capacity of the second air guide cavity 1135, facilitating heat dissipation of the first heat dissipation member 4 by the outdoor fan 111.

According to some embodiments of the present disclosure, as illustrated in FIG. 3, a side of the second air guide cavity 1135 facing the compressor chamber 12 is open to form the second air guide opening 1139. Such an arrangement can facilitate flowing of the air in the compressor chamber 12 into the second air guide cavity 1135 through the second air guide opening 1139, ensuring the ventilation capacity of the second air guide cavity 1135 and improving an overall heat dissipation effect on the first heat dissipation member 4 and the first electrical control box part 30. When the outdoor fan 111 is in operation, the air from the compressor chamber 12 can flow into the second air guide cavity 1135 through the second air guide opening 1139 under the air pressure difference between the fan chamber 11 and the compressor chamber 12, flow upwards along the first heat dissipation channel 42 under the guidance of the second air guide cover 1134 to exit the first heat dissipation channel 42, and enter the fan chamber 11, achieving the heat dissipation for the first heat dissipation member 4.

According to some embodiments of the present disclosure, as illustrated in FIG. 8, FIG. 9, and FIG. 12, the first electrical control box part 30 further includes a second heat dissipation member 44. The second heat dissipation member 44 is located at a side of the first electrical control box 3 close to the compressor chamber 12. At least part of the second heat dissipation member 44 is located in the compressor chamber 12. For example, a part of the second heat dissipation member 44 is located in the compressor chamber 12, or the entire second heat dissipation member 44 is located in the compressor chamber 12. The second heat dissipation member 44 can provide heat dissipation for the first electrical control box 3, which improves overall cooling performance for the first electrical control box 3, better ensuring operational performance of the components 322 inside the first electrical control box 3.

The second heat dissipation member 44 includes a plurality of second heat dissipation fins 441 arranged at intervals. The plurality of second heat dissipation fins 441 may be uniformly arranged at intervals in the front-rear direction. The plurality of second heat dissipation fins 441 can increase a heat exchange area of the second heat dissipation member 44 and improve a heat dissipation efficiency of the second heat dissipation member 44 for the first electrical control box 3. A second heat dissipation channel 442 extending in the up-down direction is defined between adjacent second heat dissipation fins 441. A plurality of second heat dissipation channels 442 may be formed and arranged at intervals in the front-rear direction. The airflow in the compressor chamber 12 is adapted to flow through the second heat dissipation channel 442 in the up-down direction and towards the first heat dissipation channel 42. When flowing in the second heat dissipation channel 442, the airflow can exchange heat with the adjacent second heat dissipation fins 441. As a result, after the airflow flows out of the second heat dissipation channel 442, the heat from the first heat dissipation fin 41 can be carried away to realize heat dissipation and cooling of the second heat dissipation member 44, in such a manner that the second heat dissipation member 44 provides better heat dissipation for the first electrical control box 3.

When in operation, the outdoor fan 111 enables the air pressure inside the fan chamber 11 to be lower than that inside the compressor chamber 12. As a result, the airflow in the compressor chamber 12 flows towards the fan chamber 11 due to the air pressure difference. When the airflow in the compressor chamber 12 flows near the second heat dissipation member 44, a portion of the airflow flows upwards along the second heat dissipation channel 442, flows into the first heat dissipation channel 42 from an upper part of the first electrical control box 3. Then, the airflow flows downwards along the first heat dissipation channel 42, exits the first heat dissipation channel 42 from a middle part of the first heat dissipation channel 42 in the up-down direction, and enters the fan chamber 11. Another portion of the airflow flows downwards along the second heat dissipation channel 442, flows into the first heat dissipation channel 42 from a lower part of the first electrical control box 3, flows upwards along the first heat dissipation channel 42, exits the first heat dissipation channel 42 from the middle part of the first heat dissipation channel 42 in the up-down direction, and enters the fan chamber 11. During sequential flowing of the airflow through the second heat dissipation channel 442 and the first heat dissipation channel 42, the airflow can exchange heat with the adjacent second heat dissipation fins 441 and the adjacent first heat dissipation fins 41. When the airflow flows out of the first heat dissipation channel 42, the airflow can carry away the heat, and thus heat dissipation is provided for both the first heat dissipation member 4 and the second heat dissipation member 44, which in turn improves the overall heat dissipation efficiency of the first electrical control box 3, ensuring a normal operation of the first electrical control assembly 30.

According to some embodiments of the present disclosure, as illustrated in FIG. 8, a height of the first heat dissipation fin 41 in the left-right direction is greater than a height of the second heat dissipation fin 441 in the left-right direction. With this arrangement, a heat exchange area between the first heat dissipation fin 41 and the airflow in the first heat dissipation channel 42 can be greater than a heat exchange area between the second heat dissipation fin 441 and the airflow in the second heat dissipation channel 442. Thus, within a same period of time, an amount of heat exchanged by the first heat dissipation member 4 is greater than that exchanged by the second heat dissipation member 44, making the heat dissipation efficiency of the first heat dissipation member 4 higher than that of the second heat dissipation member 44. In addition, since the first heat dissipation member 4 is located in the fan chamber 11 where a flow speed of the air is high, heat dissipation provided by the entire outdoor unit for the first heat dissipation member 4 is better than that for the second heat dissipation member 44. Consequently, heat dissipation and cooling provided by the entire outdoor unit for the components 322 of the electrical control board 321 at a side of the electrical control board 321 facing the first heat dissipation member 4 can be further improved.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 6, the second electrical control box part 50 is located above the water pump 53. In this way, a space above the water pump 53 can be fully utilized to make an overall structural layout more compact, improving overall space utilization.

For example, in some specific embodiments of the present disclosure, the second electrical control box part 50 can be configured to control the water circuit heat exchange assembly 40 and the refrigerant flow path. Such an arrangement allows for a short distance between the second electrical control box part 50 and the water circuit heat exchange assembly 40, which facilitates an electrical connection between the second electrical control box part 50 and the water circuit heat exchange assembly 40, and reduces a length of a connection wiring harness between the second electrical control box part 50 and the water circuit heat exchange assembly 40.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 6, the second electrical control box part 50 is located above the water circuit heat exchanger 51. In this way, a space above the water circuit heat exchanger 51 can be fully utilized to make the overall structural layout more compact, improving the overall space utilization.

According to some embodiments of the present disclosure, as illustrated in FIG. 7 to FIG. 10, the first electrical control box body 31 includes a main box body 311 and a box cover 312. Each of the main box body 311 and the box cover 312 is formed independently, which can facilitate overall assembly of the first electrical control box 3 while enhancing overall strength and rigidity of the first electrical control box 3. The main box body 311 has a flange 3111 formed at an outer edge of the main box body 311. The flange 3111 is connected to the box cover 312. Connecting the main box body 311 and the box cover 312 by the flange 3111 can facilitate mounting and disassembly of the main box body 311 and the box cover 312, facilitating the overall assembly of the first electrical control box 3. In addition, a manufacturing process of the flange 3111 is simple and convenient, and structural strength at a connection between the main box body 311 and the box cover 312 can be enhanced.

A first seal 317 is disposed between the flange 3111 and the box cover 312. The first seal 317 between the box cover 312 and the flange 3111 of the main box body 311 can play a sealing role for the first electrical control box 3. During the operation of the first electrical control assembly 32, the first seal 317 can prevent an external liquid or a flammable gas from entering the first electrical control box 3 and damaging the first electrical control assembly 32, ensuring the normal operation of the first electrical control assembly 32. For example, the first seal 317 may be a sealing adhesive, a sealing gasket, or other structures.

According to some embodiments of the present disclosure, as illustrated in FIG. 10, the first electrical control box body 31 has a routing groove 34 formed at an inner peripheral wall of the first electrical control box body 31. The routing groove 34 extends in a peripheral direction of the first electrical control box body 31. An electrical control wiring harness of the first electrical control box 3 is adapted to extend along the routing groove 34. The routing groove 34 can help organize the electrical control wiring harness inside the first electrical control box 3 to make positioning of the electrical control wiring harness more reasonable, which avoids safety issues caused by disorderly placement of the electrical control wiring harness, contributing to enhanced safety of the first electrical control box 3. In addition, when the electrical control wiring harness inside the first electrical control box 3 is located in the routing groove 34, the routing groove 34 can provide accommodation and protection for the electrical control wiring harness in the routing groove 34.

According to some embodiments of the present disclosure, the electrical control wiring harness includes the first electrical control wiring harness and the second electrical control wiring harness that are separately disposed. The component 322 connected to the first electrical control wiring harness has higher power than the component 322 connected to the second electrical control wiring harness. Such an arrangement can reduce the electromagnetic interference between the first electrical control wiring harness and the second electrical control wiring harness, which is beneficial in improving the reliability and safety of the first electrical control box 3. The first electrical control wiring harness may carry a high voltage, while the second electrical control wiring harness may carry a low voltage.

For example, in some embodiments, the lower part of the first electrical control box 3 may have two wiring outlets 3113 that may be spaced apart from each other in the front-rear direction. The first electrical control wiring harness and the second electrical control wiring harness may be respectively disposed within the first electrical control box 3 towards two opposite sides of the first electrical control box 3 in the front-rear direction. After extending along different routing grooves 34 respectively, the first electrical control wiring harness and the second electrical control wiring harness can be led out from the two wiring outlets 3113, respectively, better reducing the electromagnetic interference between the first electrical control wiring harness and the second electrical control wiring harness.

According to some embodiments of the present disclosure, as illustrated in FIG. 10, the components 322 are disposed at a same side of the electrical control board 321, which can facilitate assembly between the components 322 and the electrical control board 321, and is conducive to improving assembly efficiency of the components 322. In addition, centralized heat dissipation for the components 322 as a whole can be facilitated. A routing clearance 341 is defined between an outer periphery of the electrical control board 321 and the inner peripheral wall of the first electrical control box body 31. The routing groove 34 is located at an outer peripheral side of the routing clearance 341. The electrical control wiring harness is adapted to extend to the routing groove 34 through the routing clearance 341. The routing clearance 341 can provide a predetermined space for the electrical control wiring harness to facilitate lead-out of the electrical control wiring harness from the outer periphery of the electrical control board 321, which facilitates routing of the electrical control wiring harness to the routing groove 34. Further, the routing clearance 341 can help organize the electrical control wiring harness inside the first electrical control box 3 to make a routing layout of the electrical control wiring harness more reasonable, which avoids the safety issues caused by the disorderly placement of the electrical control wiring harness.

According to some embodiments of the present disclosure, as illustrated in FIG. 10, the first electrical control box body 31 includes the main box body 311 and the box cover 312 connected to the main box body 311. Each of the main box body 311 and the box cover 312 is formed independently, which can facilitate the overall assembly of the first electrical control box 3 while enhancing the overall strength and rigidity of the first electrical control box 3. The first electrical control assembly 32 is located in the main box body 311. The main box body 311 can provide the accommodation and the protection for the first electrical control assembly 32. The main box body 311 has the routing groove 34 at an inner peripheral wall of the main box body 311. A portion of the electrical control wiring harness inside the first electrical control box 3 is located in the routing groove 34. The routing groove 34 can provide the accommodation and the protection for the electrical control wiring harness in the routing groove 34. In addition, the routing groove 34 can help organize the electrical control wiring harness inside the first electrical control box 3 to make the positioning of the electrical control wiring harness more reasonable, which avoids the safety issues caused by the disorderly placement of the electrical control wiring harness, contributing to the enhanced safety of the first electrical control box 3.

The routing groove 34 extends through an end face of the main box body 311 that faces the box cover 312. Such an arrangement can ensure that the routing groove 34 has a sufficient space to accommodate the electrical control wiring harness of the first electrical control assembly 32, facilitating routing of the electrical control wiring harness. Further, a more compact overall structure can be realized, improving space utilization in the first electrical control box 3.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 6, the water pump 53 is directly or indirectly mounted at the base 16 of the outdoor unit housing 10. For example, the water pump 53 may be directly mounted at the base 16 of the outdoor unit housing 10, or the water pump 53 may be indirectly mounted at the base 16 of the outdoor unit housing 10 through a support structure. By mounting the water pump 53 directly or indirectly at the base 16 of the outdoor unit housing 10, instability that could be caused by suspending the water pump 53 in the air can be avoided, improving safety and stability of the water pump 53, and also facilitating fixation of the water pump 53.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 13 to FIG. 15, the water circuit heat exchange assembly 40 further includes an electric heater 52. The water circuit heat exchanger 51 has a first water inlet 513 and a first water outlet 514. The electric heater 52 has a second water inlet 521 and a second water outlet 522. The second water inlet 521 is in communication with the first water outlet 514. The electric heater 52 can increase a temperature of an internal water flow, achieving heating of the water flow. The water flow can enter an interior of the electric heater 52 through the second water inlet 521, be heated inside the electric heater 52, and then flow out from the second water outlet 522. Since the second water inlet 521 is in communication with the first water outlet 514, the water flow flowing out from the first water outlet 514 of the water circuit heat exchanger 51 can enter the electric heater 52 through the second water inlet 521, and flow out from the second water outlet 522.

When the entire outdoor unit needs to heat the water flow, the refrigerant in the refrigerant flow path exchanges heat with the water flow in the water flow path, and then the water flow flows out of the water circuit heat exchanger 51. An external water flow can flow into the water circuit heat exchanger 51 through the first water inlet 513. After exchanging heat with the refrigerant flow path of the water circuit heat exchanger 51, the water flow can flow out of the water circuit heat exchanger 51 from the first water outlet 514. The water flow subjected to the heat exchange and flowing out from the first water outlet 514 can flow into the electric heater 52 through the second water inlet 521. The water flow flowing into the electric heater 52 is further heated by the electric heater 52, and then can flow out of the electric heater 52 from the second water outlet 522 and flow indoors through piping, facilitating use by a user. With the electric heater 52, when a heating and ventilation apparatus performs heating, the water flow in the water flow path can be heated through exchanging heat with the refrigerant flow path, and can also be further heated by the electric heater 52, further increasing an outlet water temperature and meeting higher requirements for the outlet water temperature.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 6, the electric heater 52 and the second electrical control box part 50 are arranged in the left-right direction. Such an arrangement allows for a short distance between the second electrical control box part 50 and the electric heater 52, which facilitates a connection between the second electrical control box part 50 and the electric heater 52. Further, a more compact overall structure can be realized, improving overall space utilization.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 6, the electric heater 52 is located above the water circuit heat exchanger 51. As such, when water in the water circuit heat exchange assembly 40 needs to be discharged, water in the electric heater 52 can flow out through a water discharge pipe 57 under an action of gravity. Moreover, since the electric heater 52 is located above the water circuit heat exchanger 51, water accumulation in a connection pipe 56 between the electric heater 52 and the water circuit heat exchanger 51 can be avoided, which enable water in an entire water flow channel of the water circuit heat exchange assembly 40 to be discharged more thoroughly. Thus, when an external temperature is low, freezing inside the connection pipe 56 between the electric heater 52 and the water circuit heat exchanger 51 can be prevented, which can be conducive to improving safety of the heating and ventilation apparatus.

According to some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 6, the electric heater 52 is located directly above the water circuit heat exchanger 51. Such an arrangement can prevent water accumulation in a pipe between the electric heater 52 and the water circuit heat exchanger 51, which helps improve the safety of the heating and ventilation apparatus. In addition, such an arrangement allows for a shorter distance between the electric heater 52 and the water circuit heat exchanger 51, making the overall structure more compact and facilitating a layout of the pipe between the electric heater 52 and the water circuit heat exchanger 51.

According to some embodiments of the present disclosure, as illustrated in FIG. 13 to FIG. 15, the first water outlet 514 is formed at an upper end of the water circuit heat exchanger 51, and the second water inlet 521 is formed at a lower end of the electric heater 52. Since the electric heater 52 is located above the water circuit heat exchanger 51, such an arrangement allows for a short distance between the first water outlet 514 and the second water inlet 521, which facilitates a connection between the first water outlet 514 and the second water inlet 521 and makes the overall structure more compact. Additionally, when the water needs to be discharged from the water circuit heat exchange assembly 40, the water discharged from the electric heater 52 can directly flow into the water circuit heat exchanger 51 under the action of gravity. Therefore, no water accumulation occurs in piping between the electric heater 52 and the water circuit heat exchanger 51, which helps further improve the safety and reliability of the heating and ventilation apparatus.

According to some embodiments of the present disclosure, as illustrated in FIG. 13 to FIG. 15, the first water outlet 514 and the second water inlet 521 are located at a same side, which can allow for the short distance between the first water outlet 514 and the second water inlet 521, facilitating the connection between the first water outlet 514 and the second water inlet 521. The first water outlet 514 is in communication with the second water inlet 521 through the connection pipe 56. The connection pipe 56 is U-shaped or arc-shaped. The connection pipe 56 can facilitate flowing of the water flow between the first water outlet 514 and the second water inlet 521. The connection pipe 56 being U-shaped or arc-shaped facilitates discharging the water flow from the connection pipe 56 under the action of gravity when the water needs to be discharged from the water circuit heat exchange assembly 40, which avoids the water accumulation in the connection pipe 56, ensuring safety and reliability of the connection pipe 56.

According to some embodiments of the present disclosure, as illustrated in FIG. 13 to FIG. 15, the first water inlet 513 and the first water outlet 514 are located at a same side of the water circuit heat exchanger 51. In this way, all the piping connected to the water circuit heat exchanger 51 can be enabled to be located at a same side of the water circuit heat exchanger 51, which facilitates connections of the water circuit heat exchanger 51 to other components, improving an overall mounting efficiency. Further, reasonable utilization of an entire space can be facilitated to make the overall structure more compact. For example, the first water inlet 513 and the first water outlet 514 are located at a rear side of the water circuit heat exchanger 51 in the front-rear direction, and the first water inlet 513 and the first water outlet 514 are spaced apart from each other in the up-down direction.

According to some embodiments of the present disclosure, as illustrated in FIG. 13 to FIG. 15, the second water inlet 521 and the second water outlet 522 are located at a same side of the electric heater 52. In this way, all the piping connected to the electric heater 52 can be enabled to be located at a same side of the electric heater 52, which facilitates connections of the electric heater 52 to other components, improving the overall mounting efficiency. Further, the reasonable utilization of the entire space can be facilitated to make the overall structure more compact. For example, the second water inlet 521 and the second water outlet 522 are located at a rear side of the electric heater 52 in the front-rear direction, and the second water inlet 521 and the second water outlet 522 are spaced apart from each other in the up-down direction.

According to some embodiments of the present disclosure, as illustrated in FIG. 13 to FIG. 15, the first water outlet 514 is in communication with the second water inlet 521 through the connection pipe 56. The connection pipe 56 can facilitate the flowing of the water flow between the first water outlet 514 and the second water inlet 521. A water inlet pipe 54 is connected at the first water inlet 513. A water outlet pipe 55 is connected at the second water outlet 522. The external water flow can flow into the water circuit heat exchange assembly 40 through the water inlet pipe 54. The water flow in the water inlet pipe 54 flows into the water circuit heat exchanger 51 through the first water inlet 513. After exchanging heat with the refrigerant flow path in the water circuit heat exchanger 51, the water flow can flow out of the water circuit heat exchanger 51 from the first water outlet 514 and enter the connection pipe 56. Then, the water in the connection pipe 56 can flow into the electric heater 52 through the second water inlet 521. After being heated inside the electric heater 52, the water can flow out of the electric heater 52 from the second water outlet 522, exit the water circuit heat exchange assembly 40 through the water outlet pipe 55, and enter an indoor environment.

The connection pipe 56, the water inlet pipe 54, and the water outlet pipe 55 are all located at a same side of each of the water circuit heat exchanger 51 and the electric heater 52. With this arrangement, all the piping of the water circuit heat exchange assembly 40 can be enabled to be located at a same side of each of the water circuit heat exchanger 51 and the electric heater 52, which facilitates connections of each of the water circuit heat exchanger 51 and the electric heater 52 to other components, improving the overall mounting efficiency. Further, the reasonable utilization of the entire space can be facilitated to make the overall structure more compact. Additionally, a concentrated distribution of connection piping of the water circuit heat exchange assembly 40 can be achieved, which can facilitate mounting and removal of the water circuit heat exchange assembly 40 and replacement and maintenance of the connection piping, improving a maintenance efficiency.

According to some embodiments of the present disclosure, as illustrated in FIG. 17, the outdoor unit housing 10 has the fan chamber 11 and the compressor chamber 12. The first partition plate 113 is disposed between the fan chamber 11 and the compressor chamber 12. The first partition plate 113 can separate the fan chamber 11 from the compressor chamber 12, which makes the layout of the entire outdoor unit more reasonable and facilitates maintenance and replacement of different components. The water circuit heat exchange assembly 40 further includes an expansion tank 59. The expansion tank 59 can be configured to balance a water volume and a pressure in the water flow path of the water circuit heat exchange assembly 40.

The first partition plate 113 has a mounting opening 113a formed at a lower part of the first partition plate 11. The expansion tank 59 is mounted at the mounting opening 113a. The expansion tank 59 is partially located in the fan chamber 11. The expansion tank 59 is partially located in the compressor chamber 12. In this way, a space in each of the fan chamber 11 and the compressor chamber 12 can be fully utilized to make the overall structure more compact, improving the overall space utilization.

According to some embodiments of the present disclosure, as illustrated in FIG. 17, the expansion tank 59 is located below the outdoor fan 111. In this way, a space between the lower part of the outdoor fan 111 and the outdoor unit housing 10 can be fully utilized to make the overall structure more compact, improving the overall space utilization.

According to some embodiments of the present disclosure, as illustrated in FIG. 17, a minimum distance between the expansion tank 59 and an outer edge of the outdoor fan 111 is greater than 20 mm. If the minimum distance between the expansion tank 59 and the outer edge of the outdoor fan 111 is smaller than 20 mm, on the one hand, collisions occur between the expansion tank 59 and the outdoor fan 111, causing damages. Moreover, when the external temperature is low, an outer peripheral wall of the expansion tank 59 freezes, which causes adhesion between the expansion tank 59 and the outer edge of the outdoor fan 111 due to freezing, affecting a normal operation of the entire outdoor unit. On the other hand, when the outdoor fan 111 is in operation, a wind resistance in the vicinity may be increased and noise may be generated due to the presence of the expansion tank 59, which is detrimental to noise reduction performance of the entire outdoor unit.

Therefore, the minimum distance between the expansion tank 59 and the outer edge of the outdoor fan 111 being greater than 20 mm can prevent the collisions between the expansion tank 59 and the outdoor fan 111, and also avoid a case where the adhesion occurs between the expansion tank 59 and the outer edge of the outdoor fan 111 due to the low external temperature, better ensuring safety and reliability of the expansion tank 59 and the normal operation of the entire outdoor unit. In addition, noise generation within the fan chamber 11 can be avoided to ensure an overall noise reduction effect.

According to some embodiments of the present disclosure, as illustrated in FIG. 17, the minimum distance between the expansion tank 59 and the outer edge of the outdoor fan 111 ranges from 20 mm to 50 mm. In this way, the collisions between the expansion tank 59 and the outdoor fan 111 can be prevented, and the case where the adhesion occurs between the expansion tank 59 and the outer edge of the outdoor fan 111 due to the low external temperature can also be avoided, better ensuring the safety and the reliability of the expansion tank 59 and the normal operation of the entire outdoor unit. In addition, the noise generation within the fan chamber 11 can be avoided to ensure the overall noise reduction effect. Further, a value of the minimum distance between the expansion tank 59 and the outer edge of the outdoor fan 111 can be prevented from being too large to ensure a size of the entire outdoor unit, reducing a space occupied by the entire outdoor unit. For example, the value of the minimum distance between the expansion tank 59 and the outer edge of the outdoor fan 111 may be 20 mm, 30 mm, 40 mm, 50 mm, etc.

According to some embodiments of the present disclosure, as illustrated in FIG. 17, the expansion tank 59 is supported at the base 16 of the outdoor unit housing 10. When condensation water appears at a surface of the expansion tank 59, the expansion tank 59 being supported at the base 16 of the outdoor unit housing 10 allows the condensation water to flow directly onto the base along the surface of the expansion tank 59, which avoids damages to other structures caused by dripping of the condensation water, ensuring operational performance of the entire outdoor unit. Additionally, a space between the outer edge of the outdoor fan 111 and the base 16 can be fully utilized to make the overall structure more compact, improving the overall space utilization. Further, fixation of the expansion tank 59 as a whole can be facilitated to enhance safety and stability of the expansion tank 59 during operation.

According to some embodiments of the present disclosure, the water circuit heat exchange assembly 40 further includes the expansion tank 59. The expansion tank 59 is located outside the outdoor unit housing 10 and close to the water circuit chamber 13. Such an arrangement can facilitate the entire outdoor unit to improve operational performance of the expansion tank 59 through increasing a volume of the expansion tank 59, and avoid a problems of the entire outdoor unit having a large size due to the expansion tank 59 having a large volume. In addition, mounting, removal, replacement, and maintenance of the expansion tank 59 can be facilitated, improving the overall assembly efficiency. Additionally, during the operation of the entire outdoor unit, water can be conveniently replenished into the expansion tank 59 when the expansion tank 59 contains a small amount of water, ensuring the operational performance of the expansion tank 59.

According to some embodiments of the present disclosure, as illustrated in FIG. 14 and FIG. 16, the water circuit heat exchange assembly 40 includes the electric heater 52. The electric heater 52 is disposed in the water circuit chamber 13 and configured to heat water in the water flow path. Disposing the electric heater 52 in the water circuit chamber 13 can facilitate a connection between the electric heater 52 and the water circuit heat exchanger 51, making a spatial distribution of the entire outdoor unit more reasonable and the structure more compact.

The second electrical control box part 50 includes a main electrical control box body 61, an electrical control box sub-body 62, a main control board 63, and an electric heating control assembly 64. The main control board 63 is disposed in the main electrical control box body 61. At least part of the electric heating control assembly 64 is disposed in the electrical control box sub-body 62. For example, the electric heating control assembly 64 may be partially or entirely disposed in the electrical control box sub-body 62.

The electric heating control assembly 64 is configured to control the electric heater 52, such as controlling on or off of the electric heater 52, or controlling heating power and a heating temperature of the electric heater 52.

The electrical control box sub-body 62 is located outside the main electrical control box body 61 and formed independently from the main electrical control box body 61. Since the electric heating control assembly 64 is located in the electrical control box sub-body 62, when the water circuit heat exchange assembly 40 does not include the above-mentioned electric heater 52, the second electrical control box part 50 may include the main electrical control box body 61 and the main control board 63 that are described above, but may exclude the electrical control box sub-body 62 and the electric heating control assembly 64 that are described above. However, when the water circuit heat exchange assembly 40 includes the above-mentioned electric heater 52, a main portion of the second electrical control box part 50 does not require a significant modification or may require no modification at all, as long as the electrical control box sub-body 62 and the electric heating control assembly 64 that are described above are added on a basis of the electrical control box part in which the water circuit heat exchange assembly 40 does not include the above-mentioned electric heater 52. In this way, a control portion of the second electrical control box part 50 for the electric heater 52 can be modularized, and the main electrical control box body 61 and the main control board 63—which form the main portion of the second electrical control box part 50—can be used as common structures. Regardless of whether or not the electric heater 52 is included, the second electrical control box part 50 always includes the common structures having the main electrical control box body 61 and the main control board 63. When the electric heater 52 needs to be disposed in the outdoor unit 100, the structure consisting of the main electrical control box body 61 and the main control board 63 has no need to be changed or requires no substantial change, as long as the electrical control box sub-body 62 and the electric heating control assembly 64 that are described above are provided. In this way, production costs can be reduced.

When the entire electric heating control assembly 64 is disposed in the electrical control box sub-body 62, the control portion for the electric heater 52 can be more effectively modularized, in such a manner that the control portion for the electric heater 52 is formed as a module structure that is independent of the main electrical control box body 61. In this way, the production costs can be further reduced, a design of the second electrical control box part 50 becomes more flexible, and maintenance and replacement of the electric heating control assembly 64 are facilitated.

According to some embodiments of the present disclosure, as illustrated in FIG. 16, the electrical control box sub-body 62 is removably connected to the main electrical control box body 61, which facilitates mounting and removal of the electrical control box sub-body 62, as well as replacement and maintenance of components in the electrical control box sub-body 62.

According to some embodiments of the present disclosure, as illustrated in FIG. 16, the electric heating control assembly 64 includes an alternating current contactor 641 disposed in the electrical control box sub-body 62. The alternating current contactor 641 can be configured to control startup or shutdown of the electric heater 52 to ensure a normal operation of the electric heater 52. Since the alternating current contactor 641 has a large size, disposing the alternating current contactor 641 in the electrical control box sub-body 62 can save a space in the main electrical control box body 61, which allows the main electrical control box body 61 to occupy a small space as a whole, reducing costs of the second electrical control box part 50. In addition, disposing the alternating current contactor 641 in the electrical control box sub-body 62 can facilitate overall mounting and removal of the electric heating control assembly 64.

According to some embodiments of the present disclosure, as illustrated in FIG. 16, the electric heating control assembly 64 includes an electric heating temperature controller 642 configured to control the heating temperature of the electric heater 52. The electric heating temperature controller 642 can be configured to control a temperature of the electric heater 52 to better achieve an auxiliary heating effect of the electric heater 52 for the water circuit heat exchanger 51, ensuring that a heating capacity of the entire outdoor unit meets usage requirements. The electric heating temperature controller 642 is disposed in the electrical control box sub-body 62 or the main electrical control box body 61. The electric heating control assembly 64 includes the alternating current contactor 641 and the electric heating temperature controller 642, and the alternating current contactor 641 is located in the electrical control box sub-body 62. Accordingly, the electric heating control assembly 64 can be entirely located in the electrical control box sub-body 62 when the electric heating temperature controller 642 is disposed in the electrical control box sub-body 62, which can facilitate replacement and maintenance of the electric heating control assembly 64 as a whole. When the electric heating temperature controller 642 is disposed in the main electrical control box body 61, the space in the main electrical control box body 61 can be fully utilized to improve space utilization of the main electrical control box body 61.

According to some embodiments of the present disclosure, as illustrated in FIG. 6 and FIG. 16, the electrical control box sub-body 62 is connected to an upper part of the main electrical control box body 61. In some embodiments of the present disclosure, the electric heater 52 is located directly above the water circuit heat exchanger 51, and the electric heating control assembly 64 is located in the electrical control box sub-body 62. Such an arrangement can allow both the electrical control box sub-body 62 and the electric heater 52 to be located at an upper part of the water circuit heat exchange assembly 40, which realizes a short distance between the electrical control box sub-body 62 and the electric heater 52. In this way, a connection between the electrical control box sub-body 62 and the electric heater 52 is facilitated and a length of the wiring harness between the electrical control box sub-body 62 and the electric heater 52 is shorten.

According to some embodiments of the present disclosure, as illustrated in FIG. 6, the electrical control box sub-body 62 is located at a side of the main electrical control box body 61 close to the electric heater 52. In this way, the short distance is realized between the electrical control box sub-body 62 and the electric heater 52, which facilitates a connection between the electric heating control assembly 64 in the electrical control box sub-body 62 and the electric heater 52, making the overall structure more compact.

According to some embodiments of the present disclosure, as illustrated in FIG. 6 and FIG. 16, the electrical control box sub-body 62 is connected to the upper part of the main electrical control box body 61 and is located at the side of the main electrical control box body 61 close to the electric heater 52. In some embodiments of the present disclosure, the electric heater 52 is located directly above the water circuit heat exchanger 51, and the electric heating control assembly 64 is located in the electrical control box sub-body 62. Such an arrangement can allow both the electrical control box sub-body 62 and the electric heater 52 to be located at the upper part of the water circuit heat exchange assembly 40. On the one hand, the short distance is realized between the electrical control box sub-body 62 and the electric heater 52, which facilitates the connection between the electric heating control assembly 64 in the electrical control box sub-body 62 and the electric heater 52, making the overall structure more compact. On the other hand, when the second electrical control box part 50 is mounted in the outdoor unit 100, such an arrangement can make full use of an overall upper space, improving the overall space utilization.

According to some embodiments of the present disclosure, as illustrated in FIG. 16, the main control board 63 includes a first main control board 631 and a second main control board 632 that are arranged in the up-down direction. The first main control board 631 is at least configured to control the refrigerant flow path. For example, the first main control board 631 can partially be configured to control at least one of an electronic expansion valve and a four-way valve 27 for the refrigerant flow path; or the first main control board 631 is configured to control at least one of the electronic expansion valve and the four-way valve 27 for the refrigerant flow path. The second main control board 632 is at least configured to control the water pump 53. A part of the second main control board 632 is configured to control the water pump 53, or all of the second main control board 632 is configured to control the water pump 53. Arranging the first main control board 631 and the second main control board 632 in the up-down direction enables a more reasonable layout of an internal space of a main control box body, making an internal structure more compact. In addition, wiring arrangement of the first main control board 631 and the second main control board 632 can be facilitated, which is beneficial in replacement and maintenance of each of the first main control board 631 and the second main control board 632.

According to some embodiments of the present disclosure, as illustrated in FIG. 13 to FIG. 15, the first water outlet 514 is in communication with the second water inlet 521 through the connection pipe 56. The water inlet pipe 54 is connected at the first water inlet 513. The water outlet pipe 55 is connected at the second water outlet 522. The external water flow can flow into the water circuit heat exchange assembly 40 through the water inlet pipe 54. The water flow in the water inlet pipe 54 flows into the water circuit heat exchanger 51 through the first water inlet 513. After exchanging heat with the refrigerant flow path in the water circuit heat exchanger 51, the water flow can flow out of the water circuit heat exchanger 51 from the first water outlet 514 and enter the connection pipe 56. Then, the water in the connection pipe 56 can flow into the electric heater 52 through the second water inlet 521. After being heated inside the electric heater 52, the water can flow out of the electric heater 52 from the second water outlet 522, exit the water circuit heat exchange assembly 40 through the water outlet pipe 55, and enter the indoor environment.

At least one of connections between the water inlet pipe 54 and the first water inlet 513, between the water outlet pipe 55 and the second water outlet 522, between the connection pipe 56 and the first water outlet 514, and between the connection pipe 56 and the second water inlet 521 is realized through a quick-connect structure. The quick-connect structure can facilitate mounting and removal of each of the water inlet pipe 54, the water outlet pipe 55, and the connection pipe 56, which is beneficial for replacement and maintenance of each of the water inlet pipe 54, the water outlet pipe 55, and the connection pipe 56, and can improve an overall mounting efficiency of the water circuit heat exchange assembly 40.

For example, one of the connections between the water outlet pipe 55 and the second water outlet 522, between the water inlet pipe 54 and the first water inlet 513, between the connection pipe 56 and the first water outlet 514, and between the connection pipe 56 and the second water inlet 521 is realized through a quick-connect structure 58; or two of the above connections are realized through the quick-connect structure; or three of the above connections are realized through the quick-connect structure; or all of the above connections are realized through the quick-connect structure.

According to some embodiments of the present disclosure, as illustrated in FIG. 2, the outdoor unit 100 includes the second partition plate 121 disposed in the outdoor unit housing 10. The second partition plate 121 can separate the compressor assembly 20 from the water circuit heat exchange assembly 40 to make the overall layout more reasonable, facilitating replacement and maintenance of the entire outdoor unit. The electric heater 52 is mounted at the second partition plate 121, which facilitates mounting and fixation of the electric heater 52 and also makes the overall structure more compact, improving the overall space utilization.

For example, the electric heater 52 is provided with a connection support at each of a lower part and an upper part of the electric heater 52. The connection support is connected to the second partition plate 121. The connection support can provide support and fixation for the electric heater 52 to enhance stability and reliability of a connection of the electric heater 52.

According to some embodiments of the present disclosure, as illustrated in FIG. 2, FIG. 18, and FIG. 19, a vibration damping structure 14 is disposed between a bottom surface of the compressor 21 and the base 16 of the outdoor unit housing 10. The vibration damping structure 14 can reduce vibrations of the compressor assembly to reduce overall noise. During an operation of the outdoor unit 100, vibrations transferred from the compressor assembly 20 to the base 16 are attenuated by the vibration damping structure 14, which can therefore reduce vibrations transferred to the base 16 of the outdoor unit housing 10. Thus, noise generated during the operation of the outdoor unit 100 can be reduced, suppressing vibrations and noise transferred outwards by the compressor assembly 20.

The vibration damping structure 14 includes a floating plate 141, a first vibration damper 142, and a second vibration damper 143. Each of the first vibration damper 142 and the second vibration damper 143 can reduce vibrations transferred from the compressor 21 to the base 16, lowering overall noise. The floating plate 141 is located at the bottom surface of the compressor 21. The first vibration damper 142 is disposed between the compressor 21 and the floating plate 141. The second vibration damper 143 is disposed between the floating plate 141 and the base 16. With this arrangement, when the compressor 21 vibrates, the vibrations from the compressor 21 are transferred to the floating plate 141, and then to the base 16. In the process that the vibrations are transferred from the compressor 21 to the floating plate 141, the first vibration damper 142 disposed between the compressor 21 and the floating plate 141 can provide initial damping for the vibrations from the compressor 21. In the process that the reduced vibrations are transferred from the floating plate 141 to the base 16, the second vibration damper 143 disposed between the floating plate 141 and the base 16 can provide secondary damping for the vibrations. Thus, the first vibration damper and the second vibration damper 143 cooperate to realize two-stage attenuation of the vibrations transferred from the compressor 21 to the base 16, realizing a better overall vibration damping and noise reduction effect.

For example, each of the first vibration damper 142 and the second vibration damper 143 may be made of rubber. Rubber possess high elasticity, allowing both the first vibration damper 142 and the second vibration damper 143 to have a satisfactory vibration damping effect.

According to some embodiments of the present disclosure, as illustrated in FIG. 18 to FIG. 20, the floating plate 141 has an avoidance recess 1411. The avoidance recess 1411 can prevent the floating plate from interfering with other structures or members, to facilitate mounting and removal of the floating plate, and ensure normal use of the vibration damping structure. In addition, a more compact overall structure can be realized, contributing to an improvement of the overall space utilization.

For example, the avoidance recess 1411 can be used to avoid refrigerant piping between the compressor assembly 20 and other members, or the avoidance recess 1411 can be used to avoid other structures at the base. When the avoidance recess 1411 is used to avoid the refrigerant piping, a predetermined spacing can be formed between the refrigerant piping and the floating plate 141, preventing the refrigerant piping from coming into contact with the floating plate 141. Thus, the floating plate 141 can be prevented from transferring the vibrations of the compressor assembly 20 to the refrigerant piping, to avoid an impact on the overall damping and noise reduction effect. Further, frictions between the floating plate 141 and the refrigerant piping caused by the vibrations of the compressor assembly 20 can be avoided, thereby preventing damage to the refrigerant piping and extending a service life of the refrigerant piping.

For example, the avoidance recess 1411 may take a form of a groove, or the avoidance recess can be formed by cutting off a corner of the floating plate and forming the avoidance recess 1411 at a position where the corner is removed.

According to some embodiments of the present disclosure, as illustrated in FIG. 18 to FIG. 20, the compressor assembly 20 further includes a liquid accumulator 22 connected to the compressor 21. The floating plate 141 has a plurality of first mounting holes 144 for mounting the compressor 21 and a plurality of second mounting holes 145 for mounting the floating plate 141. For example, the compressor 21 and the floating plate 141 can be securely connected through a first fastener passing through the first mounting hole 144, which achieves a simple structure and facilitates mounting and removal of the compressor 21. The first fastener can be configured to sequentially penetrate the compressor 21, the first vibration damper 142, and the floating plate 141 in the up-down direction, to enable the first vibration damper 142 to be fixed between the compressor 21 and the floating plate 141, attenuating the vibrations transferred from the compressor 21 to the floating plate 141. The floating plate 141 and the base 16 can be securely connected through a second fastener passing through the second mounting hole 145, which achieves a simple structure and facilitates mounting and removal of the floating plate 141. The second fastener can be configured to sequentially penetrate the floating plate 141, the second vibration damper 143, and the base 16 in the up-down direction, to enable the second vibration damper 143 to be fixed between the floating plate 141 and the base 16, attenuating the vibrations transferred from the floating plate 141 to the base 16. Therefore, the first mounting hole 144 is used for mounting between the compressor 21 and the floating plate 141, while the second mounting hole 145 is used for mounting between the floating plate 141 and the base 16.

Centers of the plurality of first mounting holes 144 are located at a first reference circle a1, so that distances from the centers of the plurality of first mounting holes 144 to a circle center o1 of the first reference circle a1 are the same. Further, the plurality of first mounting holes 144 may be uniformly arranged at intervals in a circumferential direction of the first reference circle a1, providing more stable support of the floating plate 141 for the compressor 21. Centers of the plurality of second mounting holes 145 are located at a second reference circle a2, so that distances from the centers of the plurality of second mounting hole 145 to a circle center o2 of the second reference circle a2 are the same. Further, the plurality of second mounting holes 145 may be uniformly arranged at intervals in a circumferential direction of the second reference circle a2, providing more stable support of the base 16 of the outdoor unit 100 for the floating plate 141.

For example, three first mounting holes 144 may be formed and uniformly arranged at intervals in the circumferential direction of the first reference circle a1, which can ensure stability and reliability of a connection between the compressor 21 and the floating plate 141. Four second mounting holes 145 may be formed and uniformly arranged at intervals in the circumferential direction of the second reference circle a2, which can enhance stability and reliability of a connection between the floating plate 141 and the base 16.

The circle center o2 of the second reference circle a2 is spaced apart from the circle center o1 of the first reference circle a1 in the projection on a same horizontal plane. The circle center o2 of the second reference circle a2 is located at a side, close to the liquid accumulator 22, of the circle center o1 of the first reference circle a1. The floating plate 141 is disposed at the bottom surface of the compressor 21. Since the liquid accumulator 22 is connected to the compressor 21, the floating plate 141 can provide support for both the compressor 21 and the liquid accumulator 22. Typically, to ensure stable mounting of the compressor 21 at the floating plate 141, a plurality of connection points (i.e., the plurality of first mounting holes 144 described above) between the compressor 21 and the floating plate 141 are uniformly distributed and located at a same circle. In addition, in the projection on the horizontal plane, a circle center of the circle where the plurality of connection points between the compressor 21 and the floating plate 141 lie substantially coincides with a center of the compressor 21. A center of mass of the compressor assembly 20 including the liquid accumulator 22 is offset from the center of the compressor 21 and is located at a side, close to the liquid accumulator 22, of the center of the compressor 21.

By positioning the circle center o2 of the second reference circle a2 at the side, close to the liquid accumulator 22, of the circle center o1 of the first reference circle a1, i.e., by enabling a mounting center of the floating plate 141 (i.e., the circle center o2 of the second reference circle a2) to be offset from a mounting center of the compressor 21 (the circle center o1 of the first reference circle a1), and by enabling the mounting center of the floating plate 141 to be located at a side, close to the liquid accumulator 22, of the mounting center of the compressor 21, a projection of the mounting center of the floating plate 141 on the horizontal plane is closer to a projection of the center of mass of the compressor assembly 20 on the horizontal plane. In this way, the floating plate 141 can provide more stable support for the compressor assembly 20, increasing a vibration isolation rate of the vibration damping structure 14.

According to some embodiments of the present disclosure, as illustrated in FIG. 20, the floating plate 141 has the plurality of second mounting holes 145 for mounting the floating plate 141. The centers of the plurality of second mounting holes 145 are located at the second reference circle a2, which can enable distances from the centers of the plurality of second mounting hole 145 to the circle center o2 of the second reference circle a2 to be the same. In addition, the plurality of second mounting holes 145 can be uniformly arranged at intervals in the circumferential direction of the second reference circle a2.

Projections of the center of mass of the compressor assembly 20 and the circle center o2 of the second reference circle a2 on a same horizontal plane are referred to as a first projection point and a second projection point, respectively. A horizontal spacing between the first projection point and the second projection point ranges from 0 mm to 5 mm. The compressor assembly 20 includes the compressor 21 and the liquid accumulator 22 connected to the compressor 21. The entire compressor assembly 20 may be disposed at the floating plate 141 through the compressor 21. The horizontal spacing between the first projection point and the second projection point ranging from 0 mm to 5 mm can allow a distance between the center of mass of the compressor assembly 20 and the mounting center of the floating plate 141 (i.e., the circle center o2 of the second reference circle a2) in the horizontal direction to be relatively short. In this way, the floating plate 141 can provide more stable support for the compressor assembly 20, enhancing a vibration damping effect of the vibration damping structure 14, and increasing the vibration isolation rate of the vibration damping structure 14.

As the horizontal spacing between the first projection point and the second projection point decreases, the overall vibration damping effect of the vibration damping structure 14 becomes better, and the vibration isolation rate of the vibration damping structure 14 becomes higher. When the horizontal spacing between the first projection point and the second projection point is 0 mm, that is, when the first projection point coincides with the second projection point, the vibration damping effect of the vibration damping structure 14 is optimal.

According to some embodiments of the present disclosure, as illustrated in FIG. 20, projections of a center of mass of the floating plate 141 and the circle center o2 of the second reference circle a2 on the same horizontal plane are referred to as a third projection point and a second projection point, respectively. A horizontal spacing between the third projection point and the second projection point ranges from 0 mm to 5 mm. Such an arrangement can allow a distance between the center of mass of the floating plate 141 and the mounting center of the floating plate 141 (i.e., the circle center o2 of the second reference circle a2) in the horizontal direction to be relatively short. In this way, the floating plate 141 can provide more stable support for the compressor assembly 20, enhancing the vibration damping effect of the vibration damping structure 14, and increasing the vibration isolation rate of the vibration damping structure 14.

As the horizontal spacing between the second projection point and the third projection point decreases, the overall vibration damping effect of the vibration damping structure 14 becomes better, and the vibration isolation rate of the vibration damping structure 14 becomes higher. When the horizontal spacing between the second projection point and the third projection point is 0 mm, that is, when the second projection point coincides with the third projection point, the vibration damping effect of the vibration damping structure 14 is optimal.

According to some embodiments of the present disclosure, projections of the center of mass of the compressor assembly 20 and the center of mass of the floating plate 141 on the same horizontal plane are referred to as the first projection point and the third projection point, respectively. A horizontal spacing between the first projection point and the third projection point ranges from 0 mm to 5 mm. Such an arrangement can allow a distance between the center of mass of the compressor assembly 20 and the center of mass of the floating plate 141 in the horizontal direction to be relatively short. In this way, the floating plate 141 can provide more stable support for the compressor assembly 20, and stability of the compressor assembly 20 and the floating plate 141 as a whole can be improved, enhancing the vibration damping effect of the vibration damping structure 14, and increasing the vibration isolation rate of the vibration damping structure 14.

As the horizontal spacing between the first projection point and the third projection point decreases, the overall vibration damping effect of the vibration damping structure 14 becomes better, and the vibration isolation rate of the vibration damping structure 14 becomes higher. When the horizontal spacing between the first projection point and the third projection point is 0 mm, that is, when the first projection point coincides with the third projection point, the vibration damping effect of the vibration damping structure 14 is optimal.

According to some embodiments of the present disclosure, a ratio of a mass of the floating plate 141 to a mass of the compressor 21 ranges from 0.1 to 0.6. A numerical unit used for measuring the mass of the floating plate 141 is consistent with that used for measuring the mass of the compressor 21. If the ratio of the mass of the floating plate 141 to the mass of the compressor 21 is too small, significant vibrations are likely to occur in the floating plate 141 under an influence of the compressor 21 during the operation of the compressor 21, resulting in an unsatisfactory vibration damping effect provided by the vibration damping structure 14 for the compressor assembly 20. If the ratio of the mass of the floating plate 141 to the mass of the compressor 21 is too large, the floating plate 141 becomes excessively heavy, increasing production costs of the floating plate 141 and being not convenient for overall mounting of the floating plate 141.

Therefore, when the ratio of the mass of the floating plate 141 to the mass of the compressor 21 ranges from 0.1 to 0.6, the overall vibration damping effect of the vibration damping structure 14 can be improved while ensuring appropriateness of the mass of the floating plate 141, reducing the production costs of the floating plate 141. For example, the ratio of the mass of the floating plate 141 to the mass of the compressor 21 may be 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, or the like.

Alternatively, the ratio of the mass of the floating plate 141 to the mass of the compressor 21 ranges from 0.1 to 0.4, which can better improve the overall vibration damping effect of the vibration damping structure 14 while better ensuring the appropriateness of the mass of the floating plate 141, reducing the production costs of the floating plate 141. For example, when the ratio of the mass of the floating plate 141 to the mass of the compressor 21 is 0.15, the overall vibration damping effect of the vibration damping structure 14 can be optimal, and a more appropriate mass for the floating plate 141 can be ensured.

According to some embodiments of the present disclosure, a ratio of static stiffness of the first vibration damper 142 to static stiffness of the second vibration damper 143 ranges from 0.6 to 1.5. If the ratio of the static stiffness of the first vibration damper 142 to the static stiffness of the second vibration damper 143 is too high, the vibration damping effect of each of the first vibration damper 142 and the second vibration damper 143 is unsatisfactory, degrading the overall vibration damping effect of the vibration damping structure 14. If the ratio of the static stiffness of the first vibration damper 142 to the static stiffness of the second vibration damper 143 is too low, each of the first vibration damper 142 and the second vibration damper 143 has unsatisfactory stability, which is likely to cause damages, reducing a service life of the vibration damping structure 14.

Therefore, setting the ratio of the static stiffness of the first vibration damper 142 to the static stiffness of the second vibration damper 143 to range from 0.6 to 1.5 can improve the overall vibration damping effect of the vibration damping structure 14 while preventing damages to the first vibration damper 142 and the second vibration damper 143, thereby ensuring normal operational performance of the vibration damping structure 14. For example, the ratio of the static stiffness of the first vibration damper 142 to the static stiffness of the second vibration damper 143 may be 0.6, 1, 1.2, 1.5, etc.

Alternatively, the ratio of the static stiffness of the first vibration damper 142 to the static stiffness of the second vibration damper 143 ranges from 0.8 to 1.2. In this way, the overall vibration damping effect of the vibration damping structure 14 can be better improved while better preventing the damages to the first vibration damper 142 and the second vibration damper 143, ensuring the normal operational performance of the vibration damping structure 14. For example, when the ratio of the static stiffness of the first vibration damper 142 to the static stiffness of the second vibration damper 143 is 1.0, the overall vibration damping effect of the vibration damping structure 14 can become better, while better ensuring a normal operation of the vibration damping structure 14.

According to some embodiments of the present disclosure, a damping ratio of each of the first vibration damper 142 and the second vibration damper 143 ranges from 0.01 to 0.7. If the damping ratio of each of the first vibration damper 142 and the second vibration damper 143 is too large, vibration isolation performance of the vibration damping structure 14 is unsatisfactory during the operation of the compressor 21. If the damping ratio of each of the first vibration damper 142 and the second vibration damper 143 is too small, a vibration amplitude of the floating plate 141 is too large, which results in failures of the first vibration damper 142 and the second vibration damper 143. In this way, the vibration damping structure 14 is damaged and no longer provides vibration damping.

Therefore, setting the damping ratio of each of the first vibration damper 142 and the second vibration damper 143 to range from 0.01 to 0.7 can improve the overall vibration damping effect of the vibration damping structure 14 while avoiding the failures of the first vibration damper 142 and the second vibration damper 143, ensuring the normal operational performance of the vibration damping structure 14. For example, the damping ratio of each of the first vibration damper 142 and the second vibration damper 143 may be 0.01, 0.2, 0.5, 0.7, etc.

In some embodiments, the damping ratio of each of the first vibration damper 142 and the second vibration damper 143 ranges from 0.05 to 0.2. In this way, the overall vibration damping effect of the vibration damping structure 14 can be improved while better avoiding the failures of the first vibration damper 142 and the second vibration damper 143, ensuring the normal operational performance of the vibration damping structure 14. For example, when the damping ratio of each of the first vibration damper 142 and the second vibration damper 143 is 0.05, the overall vibration damping effect of the vibration damping structure 14 can become better, while better ensuring the normal operation of the vibration damping structure 14.

According to some embodiments of the present disclosure, each of the first vibration damper 142 and the second vibration damper 143 has a static displacement smaller than 2.5 mm. The static displacement refers to a maximum deformation of a vibration damper in the up-down direction. Since each of the first vibration damper 142 and the second vibration damper 143 has a predetermined degree of elasticity, the first vibration damper 142 and the second vibration damper 143 deform under gravity of the compressor assembly 20 when the compressor assembly 20 is stationary, and the static displacement represents a maximum deformation of each of the first vibration damper 142 and the second vibration damper 143 in the up-down direction. If the static displacement of each of the first vibration damper 142 and the second vibration damper 143 is greater than 2.5 mm, overall stability of the compressor assembly 20 is unsatisfactory, which leads to a large vibration amplitude of the compressor assembly and is likely to cause problems such as the failures of the first vibration damper 142 and the second vibration damper 143. Therefore, by enabling the static displacement of each of the first vibration damper 142 and the second vibration damper 143 to be 2.5 mm, the vibration damping and noise reduction effect provided by each of the first vibration damper 142 and the second vibration damper 143 for the compressor assembly 20 is satisfactory while avoiding the problems such as the failures of the first vibration damper 142 and the second vibration damper 143, ensuring a normal operation of each of the first vibration damper 142 and the second vibration damper 143.

According to some embodiments of the present disclosure, as illustrated in FIG. 21, the outdoor unit 100 further includes an auxiliary fixing assembly 60. The auxiliary fixing assembly 60 is detachably connected to each of the outdoor unit housing 10 and the floating plate 141, for fixing the floating plate 141 relative to the outdoor unit housing 10. Due to the predetermined degree of elasticity of each of the first vibration damper 142 and the second vibration damper 143, the compressor 21 and the base 16 are elastically or flexibly connected. The compressor assembly 20 shakes during transportation of the entire outdoor unit. Since the floating plate 141 is disposed at the bottom surface of the compressor 21, the floating plate 141 shakes along with the compressor 21. During the transportation, if the auxiliary fixing assembly 60 is not provided, an excessive shaking amplitude of the compressor assembly 20 is likely to lead to the failures of the first vibration damper 142 and the second vibration damper 143, causing damages to the vibration damping structure 14 and affecting the overall vibration damping and noise reduction effect.

Therefore, by using the auxiliary fixing assembly 60 to fix the floating plate 141 relative to the outdoor unit housing 10, a problem of the failures of the first vibration damper 142 and the second vibration damper 143 due to severe shaking of the compressor assembly 20 can be avoided, to improve safety and reliability of the vibration damping structure 14, and ensure the vibration damping and noise reduction effect provided by the vibration damping structure 14 for the compressor assembly 20. For example, during the transportation of the outdoor unit 100, the auxiliary fixing assembly 60 needs to be mounted to improve the safety and the reliability of the vibration damping structure 14. When the outdoor unit 100 is in operation, the auxiliary fixing assembly 60 needs to be removed to ensure the normal operation of the vibration damping structure 14.

According to some embodiments of the present disclosure, as illustrated in FIG. 21, the auxiliary fixing component includes at least one of a bolt 7 and a fixing support 8. For example, the auxiliary fixing component may include the bolt 7 or the fixing support 8, or the auxiliary fixing component may include the bolt 7 and the fixing support 8. The bolt 7 is adapted to be in threaded connection with each of the floating plate 141 and the base 16 of the outdoor unit housing 10. By using the bolt 7 to relatively fix the floating plate 141 and the base 16, advantages such as simple structure, reliable connection, and easy removal and mounting can be achieved.

The fixing support 8 includes a fixing plate 81 and a connection plate 82 connected to the fixing plate 81. The connection plate 82 is detachably connected to the base 16 of the outdoor unit housing 10. The fixing plate 81 is configured to directly or indirectly press on an upper side of the floating plate 141 to tightly press the floating plate 141 downwards. Thus, when the fixing support 8 is used as a whole, the fixing plate 81 can limit the positions of the floating plate 141 and the compressor 21, and a connection between the connection plate 82 and the base 16 can achieve fixation of the entire fixing support 8, in such a manner that the fixing support 8 can provide better fixation for the floating plate 141, ensuring the safety and the reliability of the vibration damping structure 14. Additionally, the connection plate 82 being detachably connected to the base 16 can facilitate mounting and removal of the fixing support 8.

The fixing plate 81 may have a limiting recess 811. When the fixing support 8 is used as a whole, the first fastener between the floating plate 141 and the compressor 21 and the second fastener between the floating plate 141 and the base 16 can each be partially received in the limiting recess 811, which can better restrict a movement of each of the floating plate 141 and the compressor 21 in the horizontal direction, ensuring the safety and the reliability of the vibration damping structure 14. For example, the fixing support 8 may be integrally formed, which can enhance structural strength and rigidity at a connection between the fixing plate 81 and the connection plate 82, preventing fractures caused by stress concentration at the fixing support 8.

According to some embodiments of the present disclosure, the sound insulation hood 25 is supported at and connected to the floating plate 141. Since the second vibration damper 143 is disposed between the floating plate 141 and the base 16, the vibrations from the compressor assembly 20 can be transferred to the sound insulation hood 25 when the compressor assembly 20 is in operation, and the vibrations transferred from the sound insulation hood 25 to the base 16 can be attenuated by the second vibration damper 143, which can prevent a direct transfer of the vibrations from the compressor assembly 20 to the base 16 via the sound insulation hood 25. In this way, the overall vibration damping and noise reduction effect for the compressor assembly can be enhanced.

According to some embodiments of the present disclosure, as illustrated in FIG. 24, the compressor assembly 20 further includes the liquid accumulator 22 fixed to the base 16 of the outdoor unit housing 10. In the related art, the liquid accumulator 22 of the compressor assembly 20 is fixed to the compressor 21 and remains in a suspended state. When the compressor 21 vibrates, the liquid accumulator 22 vibrates along with the compressor 21, increasing overall vibrations of the compressor assembly and consequently increasing the overall noise. By fixing the liquid accumulator 22 to the base 16, a return gas port 222 of the compressor 21 may be in communication with the liquid accumulator 22 through a liquid accumulation pipe 211. The base 16 can provide stable support for the liquid accumulator 22 and prevent the liquid accumulator 22 from being in the suspended state. When the compressor 21 vibrates, the base 16 can ensure stability of the liquid accumulator 22 to reduce vibrations of the liquid accumulator 22, reducing the overall vibrations of the compressor assembly 20 and consequently reducing the overall noise.

According to some embodiments of the present disclosure, as illustrated in FIG. 25, the sound insulation hood 25 is configured to cover the compressor assembly at the outside of the compressor assembly 20. When in operation, the compressor 21 radiates noise outwards, but the sound insulation hood 25, disposed at the outside of the compressor assembly 20, can reduce the noise radiated by the compressor assembly 20 outwards, providing sound insulation for the compressor assembly 20. The sound insulation hood 25 is connected to the base 16, which can make overall fixation of the sound insulation hood 25 more stable, improving stability and reliability of the sound insulation hood 25 during use.

A vibration damping pad is disposed between the sound insulation hood 25 and the base 16. With the vibration damping pad, the vibrations transferred from the sound insulation hood 25 to the base 16 can be blocked to prevent the vibrations of the sound insulation hood 25 from being transferred to the base 16, avoiding problems of vibrations and noise that are generated by the base 16. Thus, an overall noise reduction and sound insulation effect for the compressor assembly 20 can be ensured.

According to some embodiments of the present disclosure, the sound insulation hood 25 is configured to cover the compressor assembly 20 at the outside of the compressor assembly 20. When in operation, the compressor 21 radiates noise outwards, but the sound insulation hood 25, disposed at the outside of the compressor assembly 20, can reduce the noise radiated by the compressor assembly 20 outwards, providing the sound insulation for the compressor assembly 20. The outdoor unit housing 10 has the fan chamber 11 and the compressor chamber 12. The first partition plate 113 is disposed between the fan chamber 11 and the compressor chamber 12. The outdoor heat exchanger 112 and the outdoor fan 111 are disposed in the fan chamber 11. The compressor assembly 20 is disposed in the compressor chamber 12. The fan chamber 11 is separated from the compressor chamber 12 by the first partition plate 113, which makes the layout of the entire outdoor unit more reasonable and facilitates the maintenance and the replacement of different components.

The sound insulation hood 25 is connected to the first partition plate 113. Such an arrangement allows for a more stable fixation of the sound insulation hood 25 as a whole, improving the stability and the reliability of the sound insulation hood 25 during use. A vibration isolation pad is disposed between the sound insulation hood 25 and the first partition plate 113. With the vibration isolation pad, the vibrations transferred from the sound insulation hood 25 to the first partition plate 113 can be blocked to prevent the vibrations of the sound insulation hood 25 from being transferred to the first partition plate 113, avoiding problems of vibrations and noise that are generated by the first partition plate 113. Thus, the overall noise reduction and sound insulation effect for the compressor assembly 20 can be ensured.

According to some embodiments of the present disclosure, as illustrated in FIG. 25 to FIG. 28, the sound insulation hood 25 is configured to cover the compressor assembly 20 at the outside of the compressor assembly 20. When in operation, the compressor 21 radiates noise outwards, but the sound insulation hood 25, disposed at the outside of the compressor assembly 20 to cover the compressor assembly 20, can reduce the noise radiated by the compressor assembly 20 outwards, providing the sound insulation for the compressor assembly 20.

The sound insulation hood 25 includes a hood body 252 and a top cover 251. The top cover 251 is arranged to cover a top of the hood body 252. The pipeline outlet 2513 is formed at the top cover 251. A pipeline of the compressor assembly 20 is adapted to be led out from the pipeline outlet 2513. The pipeline outlet 2513 at the top cover 251 can be used for leading out the pipeline of the compressor assembly 20, facilitating a connection between the compressor assembly 20 inside the sound insulation hood 25 and an external member. For example, each of the hood body 252 and the top cover 251 has a flange having a connection hole. In this way, the hood body 252 and the top cover 251 can be connected by a fastener, which is simple in structure, reliable in connection, and facilitates mounting and removal of the entire sound insulation hood 25.

According to some embodiments of the present disclosure, as illustrated in FIG. 25 and FIG. 26, the top cover 251 includes a first cover body 2511 and a second cover body 2512 that are detachably connected in the horizontal direction. The pipeline outlet 2513 is defined by the first cover body 2511 and the second cover body 2512 together, which facilitates the pipeline of the compressor assembly 20 being led out from the pipeline outlet 2513. During mounting of the top cover 251, the first cover body 2511 can be fixed at a side of the pipeline of the compressor assembly 20, and then the second cover body 2512 can be fixed at another side of the pipeline of the compressor assembly 20. In this way, the pipeline of the compressor assembly 20 can be led out from the pipeline outlet 2513, which is simple in structure and convenient to operate.

According to some embodiments of the present disclosure, as illustrated in FIG. 27 and FIG. 28, the top cover 251 is integrally formed, which can enhance structural strength and rigidity of the top cover 251, and improve an assembly efficiency of the entire sound insulation hood 25. For example, when the top cover 251 is integrally formed, a projection of the pipeline outlet 2513 at the top cover 251 in a horizontal plane may be U-shaped. The pipeline outlet 2513 may pass through a side edge of the top cover 251.

According to some embodiments of the present disclosure, as illustrated in FIG. 25 to FIG. 27, the top cover 251 is provided with a second sealing structure 2514 configured to seal a gap between the pipeline of the compressor assembly 20 and an inner wall of the pipeline outlet 2513. With this arrangement, on the one hand, the first sealing structure 3152 can prevent noise from leaking through the pipeline outlet 2513, better ensuring the noise reduction and sound insulation effect provided by the sound insulation hood 25 for the compressor assembly 20 inside the sound insulation hood 25. On the other hand, the second sealing structure 2514 can prevent an external liquid from entering the sound insulation hood 25, ensuring the normal operation of the compressor assembly 20. For example, the second sealing structure 2514 may be made of a porous material, an elastic rubber material, or the like, which can ensure a noise reduction and sound insulation effect of the second sealing structure.

According to some embodiments of the present disclosure, as illustrated in FIG. 25 to FIG. 27, the hood body 252 and the top cover 251 are formed independently, which can facilitate assembly and disassembly between the sound insulation hood 25 and the compressor assembly 20. The hood body 252 includes a first hood sub-body 2521 and a second hood sub-body 2522 that are detachably connected in the horizontal direction, which can facilitate mounting, removal, replacement, and maintenance of the entire hood body 252. For example, flanges are provided at a left side and a right side of each of the first hood sub-body 2521 and the second hood sub-body 2522. The flange may have a screw hole or be provided with an engagement structure, in such a manner that the first hood sub-body 2521 and the second hood sub-body 2522 can be connected through a fastener or the engagement structure. This design offers a simple structure, a reliable connection, and facilitates the mounting and the removal of the entire hood body 252. A projection of each of the first hood sub-body 2521 and the second hood sub-body 2522 in a horizontal plane may be U-shaped. Alternatively, one of the first hood sub-body 2521 and the second hood sub-body 2522 may be a flat plate, while the projection of the other one of the first hood sub-body 2521 and the second hood sub-body 2522 in the horizontal plane is U-shaped.

According to some embodiments of the present disclosure, the hood body 252 is integrally formed, which can enhance structural strength and rigidity of the hood body 252 to ensure overall stability and reliability of the hood body 252, and reduce a total number of parts to improve the assembly efficiency of the entire sound insulation hood 25.

According to some embodiments of the present disclosure, as illustrated in FIG. 3 and FIG. 28, the first partition plate 113 is disposed between the fan chamber 11 and the compressor chamber 12. With the first partition plate 113, the fan chamber 11 and the compressor chamber 12 inside the outdoor unit housing 10 can be separated from each other, and thus the layout of the entire outdoor unit becomes more reasonable, facilitating the maintenance and the replacement of different members. The second partition plate 121 is disposed between the water circuit chamber 13 and the compressor chamber 12. With the second partition plate 121, a part of a space inside the outdoor unit housing 10 is divided into the water circuit chamber 13 and the compressor chamber 12, which enables the layout of the entire outdoor unit to become more reasonable, facilitating the maintenance and the replacement of different members.

At least part of the first partition plate 113 is formed as a part of the hood body 252. For example, a part of the first partition plate 113 is formed as a part of the hood body 252, or the entire first partition plate 113 is formed as a part of the hood body 252. In this way, a space occupied by the sound insulation hood 25 in the entire outdoor unit can be reduced, making a structure within the compressor chamber 12 more compact and saving overall costs of the sound insulation hood 25.

According to some embodiments of the present disclosure, as illustrated in FIG. 3 and FIG. 28, at least part of the second partition plate 121 is formed as a part of the hood body 252. For example, a part of the second partition plate 121 is formed as a part of the hood body 252, or the entire second partition plate 121 is formed as a part of the hood body 252. In this way, a space occupied by the hood body 252 in the entire outdoor unit can be reduced, making the structure within the compressor chamber 12 more compact, and saving the overall costs of the sound insulation hood 25.

According to some embodiments of the present disclosure, as illustrated in FIG. 3, FIG. 4, and FIG. 28, the first partition plate 113 and the second partition plate 121 are arranged opposite to each other in the left-right direction and spaced apart from each other. The first partition plate 113 and the second partition plate 121 can sequentially divide the outdoor unit housing 10 into the fan chamber 11, the compressor chamber 12, and the water circuit chamber 13 in the left-right direction, which enables the layout of the entire outdoor unit to become more reasonable, facilitating the maintenance and the replacement of different members.

The first partition plate 113 is located at a left side of the compressor chamber 12. The second partition plate 121 is located at a right side of the compressor chamber 12. The first partition plate 113 and the second partition plate 121 can be respectively formed as a left-side part and a right-side part of the sound insulation hood that are located at the compressor, which makes the overall structure more compact, improving space utilization of the entire outdoor unit.

The sound insulation hood 25 includes a first hood plate 2523, a second hood plate 2524, and the top cover 251. The first hood plate 2523 and the second hood plate 2524 are arranged opposite to each other in the front-rear direction and spaced apart from each other. Each of the first hood plate 2523 and the second hood plate 2524 has a left end and a right end that are connected to the first partition plate 113 and the second partition plate 121, respectively. The top cover 251 is arranged to cover a top of each of the first hood plate 2523 and the second hood plate 2524. Such an arrangement can allow the first hood plate 2523, the second hood plate 2524, the top cover 251, a part of the first partition plate 113, and a part of the second partition plate 121 to jointly form the entire sound insulation hood 25. Compared with a sound insulation hood manufactured independently, this approach can reduce a mounting space required for the sound insulation hood 25, which makes the structure of the entire outdoor unit more compact, and better improves the space utilization of the entire outdoor unit. Further, the overall costs of the sound insulation hood 25 can be better saved.

For example, the first hood plate 2523 may be located at a front side of the second hood plate 2524, and each of the first hood plate 2523 and the second hood plate 2524 is in a shape of a flat plate. Each of the first hood plate 2523 and the second hood plate 2524 may be connected to each of the first partition plate 113, the second partition plate 121, and the top cover 251 through a fastener. Such a design is simple in structure, reliable in connection, and facilitates mounting and disassembly of the entire sound insulation hood, facilitating assembly of the entire outdoor unit. The top cover 251 may be provided with a flange at each of four peripheral sides of the top cover 251. The fastener can be configured to penetrate the flange, facilitating fixation between the top cover 251 and each of the first hood plate 2523, the second hood plate 2524, the first partition plate 113, and the second partition plate 121.

According to some embodiments of the present disclosure, as illustrated in FIG. 3, FIG. 4, and FIG. 28, the first hood plate 2523, the second hood plate 2524, and the top cover 251 are formed independently, which can facilitate overall assembly and transportation of the sound insulation hood 25 while enhancing overall strength and stiffness of the sound insulation hood 25. Further, a manufacturing process of the entire sound insulation hood 25 can be simplified to reduce manufacturing difficulty of the entire sound insulation hood 25.

According to some embodiments of the present disclosure, as illustrated in FIG. 3, FIG. 4, and FIG. 28, at least two of the first hood plate 2523, the second hood plate 2524, and the top cover 251 are integrally formed. For example, the first hood plate 2523 and the second hood plate 2524 are integrally formed, the first hood plate 2523 and the top cover 251 are integrally formed, the second hood plate 2524 and the top cover 251 are integrally formed, or the first hood plate 2523, the second hood plate 2524, and the top cover 251 are integrally formed.

In this way, connection strength among individual parts of the sound insulation hood 25 can be enhanced to improve stability and reliability of connections among the first hood plate 2523, the second hood plate 2524, and the top cover 251. In addition, mounting and disassembly of the entire sound insulation hood 25 can be facilitated, improving the overall assembly efficiency.

According to some embodiments of the present disclosure, as illustrated in FIG. 3, FIG. 4, and FIG. 28, the part of the first partition plate 113 that is formed as the sound insulation hood 25 is a sound insulation portion 1137c. The sound insulation portion 1137c of the first partition plate 113 can provide a sound insulation and noise reduction effect, which can effectively prevent the noise generated by the compressor assembly 20 from being transferred through the first partition plate 113 to the fan chamber 11, ensuring the overall noise reduction and sound insulation effect provided by the sound insulation hood 25 for the compressor assembly 20.

The sound insulation hood 25 includes a third hood plate 2525 and the top cover 251. The third hood plate 2525 has a lower end connected to an upper end of the sound insulation portion 1137c and an upper end connected to the top cover 251. An avoidance space 2526 for avoiding interference with the first electrical control box part is defined between the third hood plate 2525 and the first partition plate 113, which can avoid interference between the first electrical control box part 30 and the sound insulation hood 25, ensuring normal mounting of both the first electric control box part and the sound insulation hood 25. Further, the avoidance space 2526 defined between the third hood plate 2525 and the first partition plate 113 allows for a more compact structure of the entire outdoor unit, improving the overall space utilization.

For example, in some specific embodiments of the present disclosure, the sound insulation hood 25 includes the first hood plate 2523, the second hood plate 2524, the third hood plate 2525, and the top cover 251 that are formed independently. The first hood plate 2523 and the second hood plate 2524 are arranged opposite to each other in the front-rear direction and spaced apart from each other. Each of the first hood plate 2523 and the second hood plate 2524 has the left end and the right end that are connected to the first partition plate 113 and the second partition plate 121, respectively. The third hood plate 2525 has a front end and a rear end that are respectively connected to the first hood plate 2523 and the second hood plate 2524 through a fastener. Each of the front end and the rear end of the third hood plate 2525 may be provided with a flange. The fastener can be configured to penetrate the flange, facilitating fixation between the third hood plate 2525 and each of the first hood plate 2523 and the second hood plate 2524.

The top cover 251 is arranged to cover a top of each of the first hood plate 2523, the second hood plate 2524, and the third hood plate 2525. The top cover 251 is connected to each of the first hood plate 2523, the second hood plate 2524, the third hood plate 2525, and the second partition plate 121 through a fastener, which achieves a simple structure and facilitates the mounting and the removal of the entire sound insulation hood 25. The top cover 251 may be provided with the flange at each of the four peripheral sides of the top cover 251. The fastener can be configured to penetrate the flange, facilitating fixation between the top cover 251 and each of the first hood plate 2523, the second hood plate 2524, the third hood plate 2525, and the second partition plate 121.

According to some embodiments of the present disclosure, as illustrated in FIG. 3, FIG. 4, and FIG. 28, the third hood plate 2525 includes an avoidance portion and an extension portion that are arranged at an angle. The avoidance portion has an end connected to the upper end of the sound insulation portion 1137c and another end extending towards the compressor chamber 12. The extension portion has a lower end connected to the other end of the avoidance portion and an upper end extending upwards and connected to the top cover. Such an arrangement can allow an avoidance space 2526 for avoiding interference with the first electrical control box part 30 to be defined by the avoidance portion, the extension portion, and the first partition plate 113, which can better avoid the interference between the first electrical control box part 30 and the sound insulation hood 25, ensuring the normal mounting of both the first electric control component 30 and the sound insulation hood 25. Further, the more compact structure of the entire outdoor unit can be achieved, improving the overall space utilization.

According to some embodiments of the present disclosure, as illustrated in FIG. 29, the sound insulation hood 25 is configured to cover the compressor assembly at the outside of the compressor assembly 20, and damping particles 253 are filled between the sound insulation hood 25 and the compressor assembly 20. The damping particles 253 can provide vibration damping and noise reduction for the compressor assembly 20. Providing the damping particles 253 between the sound insulation hood and the compressor assembly 20 can enhance the overall vibration damping and noise reduction effect for the compressor assembly 20.

When the compressor assembly 20 is in operation, the vibrations generated by the compressor assembly 20 can be transferred to the damping particles 253. The damping particles 253 between the sound insulation hood 25 and the compressor assembly 20 can collide and rub against each other, and thus mechanical energy of the vibrations of the compressor assembly 20 can be converted into heat energy and discharged through the sound insulation hood 25. Consequently, the vibrations of the compressor assembly 20 can be dampened to reduce operational noise of the compressor assembly 20. Further, since the damping particles 253 surround a source of vibration, sound waves of vibration noise pass through the damping particles 253 before spreading to an external environment and are therefore weakened by the damping particles 253, reducing energy of the sound waves and further reducing the operational noise of the compressor assembly 20.

According to some embodiments of the present disclosure, as illustrated in FIG. 29, the damping particle 253 has an equivalent diameter less than 3 mm. In this way, friction among a plurality of damping particles 253 can be better realized, and thus kinetic energy of the vibrations of the compressor assembly 20 can be converted into frictional heat energy and discharged through the sound insulation hood 25. Consequently, the vibrations of the compressor assembly 20 can be dampened to reduce the operational noise of the compressor assembly 20. Further, smaller air gaps between the plurality of damping particles 253 can be achieved to enable better attenuation of the sound waves, improving the overall noise reduction effect.

According to some embodiments of the present disclosure, as illustrated in FIG. 29, the sound insulation hood 25 is supported at and connected to the floating plate 141, and the damping particles 253 are provided in a space defined by the sound insulation hood 25 and the floating plate 141. Therefore, when the compressor assembly is in operation, the damping particles 253 can attenuate the vibrations transferred from the compressor assembly 20 to the sound insulation hood 25. The vibrations transferred from the sound insulation hood 25 to the base 16 can be attenuated by the second vibration damper 143, improving the vibration damping and noise reduction effect for the compression assembly.

According to some embodiments of the present disclosure, the second sealing structure 2514 is disposed between the sound insulation hood 25 and the floating plate 141 to seal an assembly gap between the sound insulation hood 25 and the floating plate 141. In this way, a leakage of the damping particles 253 inside the sound insulation hood 25 can be avoided to better ensure the vibration damping and noise reduction effect provided by the damping particles 253 for the compressor assembly 20. In addition, a leakage of vibrations and noise inside the sound insulation hood 25 through the assembly gap can be avoided so that the overall vibration damping and noise reduction effect is not affected.

According to some embodiments of the present disclosure, as illustrated in FIG. 30 and FIG. 31, a return gas pipe 221 connected to the compressor assembly 20 has a plurality of U-shaped segments that are sequentially connected and of an even number. When the compressor assembly 20 is in operation, the vibrations from the liquid accumulator 22 are transferred to the return gas pipe 221, and the vibrations from the return gas pipe 221 are further transferred to other members, causing significant low-frequency noise to be generated by the entire outdoor unit. By configuring the return gas pipe 221 with the plurality of connected U-shaped segments, flexibility and structural damping of the return gas pipe 221 can be increased, which can effectively lower a natural frequency of the return gas pipe 221, and can reduce a vibration rate from the compressor 21 and the liquid accumulator 22 to other members through the return gas pipe 221, achieving the vibration damping and noise reduction effect.

For example, the return gas pipe 221 of the compressor assembly 20 has an end connected to the return gas port 222 of the liquid accumulator 22 and another end connected to the four-way valve 27 located above the return gas pipe 221. The even number of U-shaped segments can ensure a normal connection among the return gas pipe 221, the liquid accumulator 22, and the four-way valve 27. In addition, the vibrations transferred from the return gas pipe 221 to other members can be effectively attenuated to achieve the overall vibration damping and noise reduction effect. For example, the number of the U-shaped segments may be 2, 4, 6, etc.

According to some embodiments of the present disclosure, as illustrated in FIG. 30, four U-shaped segments are provided, which can more effectively attenuate the vibrations transferred from the return gas pipe 221 to other members, achieving the better overall vibration damping and noise reduction effect. Further, a desired overall size can be ensured to prevent the return gas pipe 221 from occupying an excessive space, saving the costs.

According to some embodiments of the present disclosure, as illustrated in FIG. 30, the return gas pipe 221 connected to the compressor assembly 20 has the plurality of U-shaped segments that are sequentially connected. When the compressor assembly 20 is in operation, the vibrations from the liquid accumulator 22 are transferred to the return gas pipe 221, and the vibrations from the return gas pipe 221 are further transferred to other members, causing significant low-frequency noise to be generated by the entire outdoor unit. By configuring the return gas pipe 221 with the plurality of connected U-shaped segments, the flexibility and the structural damping of the return gas pipe 221 can be increased, which can effectively lower the natural frequency of the return gas pipe 221, and reduce the vibration rate from the compressor 21 and the liquid accumulator 22 to other members through the return gas pipe 221, achieving the vibration damping and noise reduction effect.

The compressor assembly 20 includes the compressor 21 and the liquid accumulator 22. A third reference circle is a circle taking a center of an exhaust port 212 of the compressor 21 as a circle center and R1 as a radius, where R1 is greater than a radius of the compressor 21 by a difference ranging from 20 mm to 225 mm. A fourth reference circle is a circle taking a center of the return gas port 222 of the liquid accumulator 22 as a circle center and R2 as a radius, where R2 is greater than a radius of the liquid accumulator 22 by a difference ranging from 20 mm to 200 mm. At least part of projections of the plurality of U-shaped segments of the return gas pipe 221 in a horizontal plane is located in an intersection region between the third reference circle and the fourth reference circle. With such an arrangement, each of the plurality of U-shaped segments of the return gas pipe 221 is at a small distance from each of the compressor 21 and the liquid accumulator 22, while interference between the return gas pipe 221 and each of the compressor 21 and the liquid accumulator 22 can be avoided to prevent normal use of the return gas pipe 221 from being affected. When the compressor 21 and the liquid accumulator 22 vibrate, the U-shaped segments of the return gas pipe 221 remain more stable with small vibration amplitudes, ensuring the overall vibration damping and noise reduction effect for the compressor assembly 20. In addition, such an arrangement can not only make the overall structure of the compressor assembly 20 more compact, improving the overall space utilization, but also avoid the interference between the return gas pipe 221 and the compressor 21 or the liquid accumulator 22. In this way, the operation of the compressor assembly 20 is not affected.

According to some embodiments of the present disclosure, as illustrated in FIG. 31 and FIG. 32, the return gas pipe 221 connected to the compressor assembly 20 has a plurality of U-shaped segments that are sequentially connected and a vertical segment connected between every two adjacent U-shaped segments of the plurality of U-shaped segments. At least part of the vertical segment is a corrugated pipe or a rubber hose 2211. For example, a part of the vertical segment is the corrugated pipe or the rubber hose 2211, or the entire vertical segment is the corrugated pipe or the rubber hose 2211. When the compressor assembly 20 is in operation, the vibrations from the liquid accumulator 22 are transferred to the return gas pipe 221, and the vibrations from the return gas pipe 221 are further transferred to other members, causing significant low-frequency noise to be generated by the entire outdoor unit. By configuring the return gas pipe 221 with the plurality of connected U-shaped segments, the flexibility and the structural damping of the return gas pipe 221 can be increased, which can effectively lower the natural frequency of the return gas pipe 221, and reduce the vibration rate from the compressor 21 and the liquid accumulator 22 to other members through the return gas pipe 221, achieving the vibration damping and noise reduction effect.

The corrugated pipe or the rubber hose 2211 possesses a predetermined degree of elasticity. When the vibrations are transferred to the vertical segment, the corrugated pipe or the rubber hose 2211 can be configured to attenuate the vibrations of the vertical segment, which reduces the vibrations of the entire return gas pipe 221, achieving the vibration damping and noise reduction effect for the entire outdoor unit.

According to some embodiments of the present disclosure, as illustrated in FIG. 31 and FIG. 32, the corrugated pipe has a length ranging from 150 mm to 450 mm; or the rubber hose 2211 has a length ranging from 150 mm to 450 mm. If the length of the corrugated pipe or the rubber hose 2211 is too long, overall structural strength and stiffness of the return gas pipe 221 are unsatisfactory, and thus the return gas pipe 221 is likely to be damaged during use. If the length of the corrugated pipe or the rubber hose 2211 is too short, the vibration damping and noise reduction effect provided by the corrugated pipe or the rubber hose 2211 for the vertical segment of the return gas pipe 221 is reduced. Therefore, when the length of the corrugated pipe or the rubber hose 2211 ranges from 150 mm to 450 mm, the vibration damping and noise reduction effect provided by the corrugated pipe or the rubber hose 2211 for the vertical segment of the return gas pipe 221 can be better ensured, while maintaining the overall structural strength and stiffness of the return gas pipe 221.

According to some embodiments of the present disclosure, at least part of the return gas pipe 221 connected to the compressor assembly 20 is a metallic pipe. For example, a part of the return gas pipe 221 is the metallic pipe, or the entire return gas pipe 221 is the metallic pipe. A vibration-damping rubber sleeve is arranged around at least part of the metallic pipe, or the at least part of the metallic pipe is provided with a counterweight block. For example, the vibration-damping rubber sleeve may be arranged around a part of the metallic pipe, or a part of the metallic pipe is provided with the counterweight block. When the compressor assembly 20 is in operation, the vibrations from the liquid accumulator 22 are transferred to the return gas pipe 221, and the vibrations from the return gas pipe 221 are further transferred to other members, causing significant low-frequency noise to be generated by the entire outdoor unit. Enabling the vibration-damping rubber sleeve to be arranged around the return gas pipe 221 or enabling the return gas pipe 221 to be provided with the counterweight block can attenuate the vibrations of the return gas pipe 221, achieving the overall vibration damping and noise reduction effect for the return gas pipe 221.

According to some embodiments of the present disclosure, as illustrated in FIG. 1, the outdoor unit housing 10 includes a main housing body 17 and a front panel 18. The main housing body 17 has an open front side. The front panel 18 is arranged to cover the main housing body 17 at the front side of the main housing body 17. The front panel 18 includes a first panel 181 and a second panel 182 that are arranged in the left-right direction. The first panel 181 is located at a front side of the fan chamber 11. The second panel 182 is located at a front side of both the compressor chamber 12 and the water circuit chamber 13. The first panel 181 and the second panel 182 are formed independently. Such an arrangement can facilitate replacement and maintenance of the members of the entire outdoor unit, improving the overall maintenance efficiency. Moreover, by forming the first panel 181 and the second panel 182 independently, overall assembly of the outdoor unit housing 10 can be facilitated, while enhancing overall structural strength of the front panel 18. For example, the above-mentioned outdoor air outlet 102 is formed at the first panel 181, and the outdoor air inlet 101 is formed at the main housing body 17.

According to some embodiments of the present disclosure, as illustrated in FIG. 1, the first panel 181 and the second panel 182 are detachably connected, and at least one of the first panel 181 and the second panel 182 is detachably connected to the main housing body 17. For example, the first panel 181 is detachably connected to the main housing body 17, the second panel 182 is detachably connected to the main housing body 17, or each of the first panel 181 and the second panel 182 is detachably connected to the main housing body 17. In this way, removal and mounting of each of the first panel 181 and the second panel 182 can be facilitated, which facilitates the replacement and the maintenance of the members of the entire outdoor unit, improving the overall maintenance efficiency.

When an internal member in the fan chamber 11 is damaged or requires replacement, the first panel 181 can be removed, and then the internal member in the fan chamber 11 can be replaced or repaired. When an internal member in the compressor chamber 12 or the water circuit chamber 13 is damaged or requires replacement, the second panel 182 can be removed, and then the internal member in the compressor chamber or the water circuit chamber can be replaced or repaired. In this way, when the member of the entire outdoor unit is damaged or requires replacement, it is unnecessary to remove the entire front panel 18, improving the maintenance efficiency.

For example, the first panel 181 and the second panel 182 may be connected through a snap-fit connection and a bolted connection. Sides of the first panel 181 and the second panel 182 that are adjacent to each other in the left-right direction can be preliminarily fixed through the snap-fit connection, and then further fixed through the bolted connection, ensuring stability and reliability of a connection between the first panel 181 and the second panel 182. Each of the first panel 181 and the second panel 182 may be connected to the main housing body 17 through the bolted connection.

A heating and ventilation apparatus according to some embodiments of the present disclosure includes the outdoor unit 100 according to some of the above embodiments of the present disclosure. The heating and ventilation apparatus may be an air conditioning system, a heat pump system, or the like.

For the heating and ventilation apparatus according to embodiments of the present disclosure, the above outdoor unit 100 is provided. By dividing the outdoor unit housing 10 in the left-right direction into the fan chamber 11, the compressor chamber 12, and the water circuit chamber 13, the compressor assembly 20 and the water circuit heat exchange assembly 40 are located in different compartments, making the layout of the entire outdoor unit more reasonable and ensuring the clear and orderly distribution of individual assemblies. In this way, the mounting and the disassembly of the entire outdoor unit are facilitated, which improves the assembly efficiency of the entire outdoor unit, and facilitates the replacement and the maintenance of individual assemblies. Further, by disposing the first electrical control box part 30 between the fan chamber 11 and the compressor chamber 12 and disposing the second electrical control box part 50 in the water circuit chamber 13, the layout of the entire outdoor unit becomes even more reasonable, facilitating the connections between other members of the entire outdoor unit and the first and second electrical control box parts, as well as the control over other members of the entire outdoor unit by the first electrical control box module 30 and the second electrical control box assembly 50.

In the description of the present disclosure, it should be understood that, the orientation or the position indicated by terms such as “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “over”, “below”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “anti-clockwise”, “axial”, “radial”, and “circumferential” should be construed to refer to the orientation and the position as shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure.

In the description of the present disclosure, “plurality” means two or more.

In the description of the present disclosure, the first feature “above” the second feature means that the first feature is directly above or obliquely above the second feature, or simply means that the level of the first feature is higher than that of the second feature.

Reference throughout this specification to “an embodiment”, “some embodiments”, “illustrative embodiments”, “an example”, “a specific example”, or “some examples” means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. The appearances of the above phrases in various places throughout this specification are not necessarily referring to the same embodiment or example. Further, the particular features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

Although embodiments of the present disclosure have been illustrated and described, it is conceivable for those skilled in the art that various changes, modifications, replacements, and variations can be made to these embodiments without departing from the principles and spirit of the present disclosure. The scope of the present disclosure shall be defined by the claims as appended and their equivalents.