OUTDOOR UNIT AND HEATING AND VENTILATION APPARATUS

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of International Application No. PCT/CN2023/093100, filed on May 9, 2023, which is hereby incorporated by reference in their entireties.

FIELD

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

BACKGROUND

In daily life, an electric control box assembly is generally provided on an outdoor unit, and the electric control box assembly is internally provided with an electric control component. The entire machine controls operation states of various parts through the electric control component. During use, the electric control component generates a large amount of heat. In response to heat dissipation being not performed in a timely manner, use performance of the electric control component will be affected, and even damage to the electric control component is caused. In the related art, an overall heat dissipation effect on the electric control component is poor, which cannot satisfy a heat dissipation requirement of an electric control box, which is not beneficial to normal operation of the electric control component.

SUMMARY

An objective of the present disclosure is to provide an outdoor unit. An electric control box assembly is provided at a first partition plate, and a first side of an electric control board that is provided with at least part of elements faces a fan chamber, and flow of air in the fan chamber may be utilized to take away heat from the first side of the electric control board, which is beneficial to improve overall heat dissipation efficiency for an electric control component and prolong a service life of the electric control component.

The present disclosure further provides a heating and ventilation apparatus having the outdoor unit as described above.

The outdoor unit according to an embodiment of a first aspect of the present disclosure includes: a casing having a fan chamber and a compressor chamber that are arranged in a left-right direction, a first partition plate being provided between the fan chamber and the compressor chamber; an outdoor heat exchanger disposed in the fan chamber; an outdoor fan disposed in the fan chamber; a compressor assembly disposed in the compressor chamber; an electric control box assembly disposed at the first partition plate in the casing and including an electric control box. The electric control box includes an electric control box body and an electric control component disposed in the electric control box body. The electric control component includes an electric control board and a plurality of elements disposed at the electric control board. The electric control board has a first side and a second side that are located at two opposite sides of the electric control board in a thickness direction of the electric control board respectively. At least part of the plurality of elements is disposed at the first side of the electric control board. The first side of the electric control board faces the fan chamber.

In the outdoor unit according to the embodiment of the present disclosure, the electric control box assembly is provided at the first partition plate, and the first side of the electric control board having at least part of the plurality of elements faces the fan chamber, and the flow of the air in the fan chamber may be utilized to take away the heat from the first side of the electric control board, which is beneficial to improve the overall heat dissipation efficiency for the electric control component and prolong the service life of the electric control component.

According to some embodiments of the present disclosure, at least part of the plurality of elements are power devices. At least part of the power devices is located at the first side of the electric control board.

According to some embodiments of the present disclosure, the electric control box assembly includes a first radiator disposed at a side of the electric control box adjacent to the fan chamber, and the first radiator is at least partially located in the fan chamber.

According to some embodiments of the present disclosure, an inner wall of the electric control box body facing the first side of the electric control board is formed into a profiling structure. The profiling structure has a shape similar to a shape of the first side of the electric control component. At least part of the plurality of elements are in direct contact with the profiling structure; or a safety gap is formed between at least part of the plurality of elements and the profiling structure; or a heat conduction layer is filled between at least part of the plurality of elements and the profiling structure.

According to some embodiments of the present disclosure, the profiling structure includes a first groove and a second groove. Elements of the plurality of elements corresponding to the first groove constitute a first element group, in which the heat conduction layer is formed between the first element group and an inner wall of the first groove, and/or the first element group is in direct contact with the first groove; and elements of the plurality of elements corresponding to the second groove constitute a second element group. The safety gap is formed between the second element group and an inner wall of the second groove.

According to some embodiments of the present disclosure, the profiling structure includes a convex beam. Elements of the plurality of elements corresponding to the convex beam constitute a third element group. The third element group is in direct contact with the convex beam; and/or the heat conduction layer is formed between the third element group and an inner wall of the convex beam.

According to some embodiments of the present disclosure, a surface of the first radiator facing the fan chamber has an avoidance inclined surface configured to avoid the outdoor fan. The avoidance inclined surface extends obliquely away from the outdoor fan in a direction from top to bottom.

According to some embodiments of the present disclosure, the first radiator includes a plurality of first radiating fins arranged at intervals. A first heat dissipation channel is defined between adjacent first radiating fins of the plurality of first radiating fins. The first heat dissipation channel extends in an up-down direction, and an airflow is adapted to flow through the first heat dissipation channel in the up-down direction.

According to some embodiments of the present disclosure, the outdoor unit includes a first air guide hood located on a top of the first radiator. The first air guide hood and the first radiator together define a first air guide cavity; or the first air guide hood, the first radiator, and the first partition plate together define the first air guide cavity. The compressor chamber is in communication with the first heat dissipation channel through the first air guide cavity.

According to some embodiments of the present disclosure, a side of the first air guide hood facing the compressor chamber has a first air guide port. An airflow in the compressor chamber is adapted to flow into the first air guide cavity through the first air guide port and flow downwards through the first heat dissipation channel.

According to some embodiments of the present disclosure, the first air guide hood has a first surface facing the fan chamber. A part of the first surface adjacent to the first radiator is flush with a surface of the first radiator that faces the fan chamber, or an upper end of the first radiator is located in the first air guide hood.

According to some embodiments of the present disclosure, the outdoor unit includes a second air guide hood located at a bottom of the first radiator. The second air guide hood and the first radiator together define a second air guide cavity; or the second air guide hood, the first radiator, and the first partition plate together define the second air guide cavity. The compressor chamber is in communication with the first heat dissipation channel through the second air guide cavity.

According to some embodiments of the present disclosure, the second air guide hood has a second surface facing the fan chamber. A part of the second surface adjacent to the first radiator is flush with a surface of the first radiator that faces the fan chamber, or a lower end of the first radiator is located in the second air guide hood.

According to some embodiments of the present disclosure, the second air guide cavity is in communication with the compressor chamber through a second air guide port. An airflow in the compressor chamber is adapted to flow into the second air guide cavity through the second air guide port and flow upwards through the first heat dissipation channel.

According to some embodiments of the present disclosure, a soundproof hood is provided and covers outside the compressor assembly. The soundproof hood and a base of the casing define a soundproof cavity configured to receive the compressor assembly, and the second air guide port is located outside the soundproof hood.

According to some embodiments of the present disclosure, a side of the second air guide cavity facing the compressor chamber is open to form a second air guide port.

According to some embodiments of the present disclosure, the first partition plate includes a first sub-partition plate and a second sub-partition plate that are arranged in the left-right direction. The second sub-partition plate is located at a side of the first sub-partition plate adjacent to the compressor chamber; the second sub-partition plate includes a partition plate body and a partition plate flange connected to a front side of the partition plate body and a rear side of the partition plate body. The partition plate body constitutes a part of the soundproof hood, and a second air guide port is formed on the partition plate flange; and the second sub-partition plate. The first sub-partition plate, the second air guide hood, and the first radiator together define the second air guide cavity.

According to some embodiments of the present disclosure, the electric control box assembly further includes a second radiator disposed at a side of the electric control box adjacent to the compressor chamber. The second radiator is at least partially located in the compressor chamber. The second radiator includes a plurality of second radiating fins arranged at intervals; adjacent second radiating fins of the plurality of second radiating fins define a second heat dissipation channel extending in the up-down direction; and an airflow in the compressor chamber is adapted to flow through the second heat dissipation channel in the up-down direction and flows to the first heat dissipation channel.

According to some embodiments of the present disclosure, the outdoor unit further includes: a temperature adjustment assembly disposed in the electric control box body. The temperature adjustment assembly includes at least one of a heat dissipation fan, a heat pipe, and an electric heating element.

According to some embodiments of the present disclosure, the electric control box body includes a box body and a box cover. Each of the box body and the box cover is an independent molded part; a flange is formed on an outer edge of the box body. The flange is connected to the box cover; and a sealing member is provided between the flange and the box cover.

According to some embodiments of the present disclosure, a wire routing groove is formed on an inner peripheral wall of the electric control box body and extends in a circumferential direction of the electric control box body. An electric control wiring harness of the electric control box is adapted to be routed in the wire routing groove.

According to some embodiments of the present disclosure, the electric control wiring harness includes a first electric control wiring harness and a second electric control wiring harness. The first electric control wiring harness and the second electric control wiring harness are routed separately, and power of an element of the plurality of elements connected to the first electric control wiring harness is greater than power of an element of the plurality of elements connected to the second electric control wiring harness.

According to some embodiments of the present disclosure, all of the plurality of elements are disposed on the first side of the electric control board, and a wiring routing gap is formed between an outer peripheral edge of the electric control board and the inner peripheral wall of the electric control box body. The wire routing groove is located on an outer peripheral side of the wiring routing gap, and the electric control wiring harness is adapted to be routed to the wire routing groove through the wiring routing gap.

According to some embodiments of the present disclosure, the electric control box body includes a box body and a box cove connected to the box body. Each of the box body and the box cover is an independent molded part, the electric control component is located in the box body, the wire routing groove is formed on an inner peripheral wall of the box body, and the wire routing groove penetrates an end surface of the box body facing the box cover.

According to some embodiments of the present disclosure, the electric control box assembly is mounted on the first partition plate in a drawable manner.

According to some embodiments of the present disclosure, the electric control box assembly is mounted on the first partition plate in a vertically drawable manner; a guide portion is provided on the electric control box; the first partition plate has a guide groove extending in the up-down direction; and the guide portion is adapted to slide in the up-down direction along the guide groove during the process of drawing the electric control box assembly.

According to some embodiments of the present disclosure, the electric control box assembly is mounted on the first partition plate in a vertically drawable manner. The electric control box assembly includes a first radiator disposed at a side of the electric control box adjacent to the fan chamber, and the first radiator is at least partially located in the fan chamber; and the outdoor unit further includes a first air guide hood located on a top of the first radiator. The first air guide hood and the first radiator together define a first air guide cavity, or the first air guide hood, the first radiator, and the first partition plate together define a first air guide cavity. The compressor chamber is in communication with the heat dissipation channel through the first air guide cavity, and the first air guide hood is detachably connected to the first partition plate.

A heating and ventilation apparatus according to an embodiment of a second aspect of the present disclosure includes: the outdoor unit as described according to the above embodiment of the first aspect of the present disclosure.

In the heating and ventilation apparatus according to the embodiment of the present disclosure, through the arrangement of the outdoor unit, the electric control box assembly is provided at the first partition plate, the first side of the electric control board that is provided with at least part of the elements faces the fan chamber, and the flow of the air in the fan chamber may be utilized to take away the heat from the first side of the electric control board, which is beneficial to improve the overall heat dissipation efficiency for the electric control component and prolong the service life of the electric control component.

Additional aspects and advantages of the present disclosure will be provided in part in the following description, or will become apparent 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, in which:

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

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

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

FIG. 4 is a partially cross-sectional view of the soundproof hood in FIG. 3.

FIG. 5 is a schematic view of assembly of a soundproof hood and a base of an outdoor unit according to other embodiments of the present disclosure.

FIG. 6 is a schematic view of an electric control box assembly in FIG. 1.

FIG. 7 is a top view of the electric control box assembly in FIG. 6.

FIG. 8 is an exploded view of the electric control box assembly in FIG. 6.

FIG. 9 is a schematic view of a box body in FIG. 8.

FIG. 10 is a schematic view of assembly of a box body and an electric control component in FIG. 8.

FIG. 11 is a schematic view of assembly of the box body and a heat dissipation fan in FIG. 9.

FIG. 12 is a schematic view of assembly of the box body and a heat pipe in FIG. 9.

FIG. 13 is a schematic view of assembly of the box body and an electric heating element in FIG. 9.

FIG. 14 is a schematic view of assembly of an electric control box assembly and a first partition plate in FIG. 2.

FIG. 15 is an exploded view of the electric control box assembly and the first partition plate in FIG. 14.

FIG. 16 is an exploded view of a second air guide hood and a first partition plate of an outdoor unit according to some embodiments of the present disclosure.

FIG. 17 is a schematic view of an electric control box assembly of an outdoor unit according to other embodiments of the present disclosure.

FIG. 18 is a schematic view of assembly of the electric control box assembly and a heat dissipation refrigerant pipe in FIG. 17.

REFERENCE NUMERALS

• • 100, outdoor unit; 101, outdoor air inlet; 102, outdoor air outlet;
  • 10, casing; 11, fan chamber; 111, outdoor fan; 112, outdoor heat exchanger; 113, first partition plate; 1131, first air guide hood; 1131a, first surface; 1131b, heat dissipation air outlet; 1132, first air guide cavity; 1134, second air guide hood; 1134a, second surface; 1135, second air guide cavity; 1136, first sub-partition plate; 1137, second sub-partition plate; 1137a, partition plate body; 1137b, partition plate flange; 1138, first air guide port; 1139, second air guide port; 12, compressor chamber; 121, second partition plate; 13, waterway cavity; 14, vibration reduction structure; 16, base;
  • 20, compressor assembly; 21, compressor; 25, soundproof hood; 251, top cover; 2511, first cover body; 2512, second cover body; 2513, pipeline outlet; 252, cover body; 2523, first cover plate; 2524, second cover plate; 2525, third cover plate; 254, soundproof cavity;
  • 30, electric control box assembly; 3, electric control box; 31, electric control box body; 311, box body; 3111, flange; 3113, wiring outlet; 312, box cover; 313, profiling structure; 3131, convex beam; 3132, first groove; 3133, second groove;
  • 32, electric control component; 321, electric control board; 322. element; 33, temperature adjustment assembly; 331, heat dissipation fan; 332, heat pipe; 3321, hot end; 3322, cold end; 333, electric heating element; 3331, first snap; 34, wire routing groove; 341, wiring routing gap; 35, guide portion; 36, pressing plate; 361, receiving hole channel; 362, heat dissipation refrigerant pipe;
  • 4, first radiator; 41, first radiating fin; 42, first heat dissipation channel; 43, avoidance inclined surface; 44, second radiator; 441, second radiating fin; 442, second heat dissipation channel.
  • 40, waterway heat exchange assembly; 51, waterway heat exchanger; 52, electric heater; 53, water pump.

DETAILED DESCRIPTION

The 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 the embodiments of the present disclosure will be described below with reference to FIG. 1 to FIG. 18.

As shown in FIG. 1 to FIG. 8, an outdoor unit 100 according to an embodiment of a first aspect of the present disclosure includes a casing 10, an outdoor heat exchanger 112, an outdoor fan 111, a compressor assembly 20, and an electric control box assembly 30.

The casing 10 has a fan chamber 11 and a compressor chamber 12 that are arranged in a left-right direction, and a first partition plate 113 is provided between the fan chamber 11 and the compressor chamber 12. The first partition plate 113 may separate two parts in the casing 10, i.e., the fan chamber 11 and the compressor chamber 12 in the casing 10, which can make layout of the entire machine more reasonable and facilitate maintenance and replacement of different parts.

An outdoor air inlet 101 and an outdoor air outlet 102 are formed on the casing 10. Each of the outdoor air inlet 101 and the outdoor air outlet 102 is formed at a part of the casing that is located at an outer periphery of the fan chamber. For example, the outdoor air outlet 101 is formed at a front side wall of the casing 10, and the outdoor air inlet 101 is formed at a rear side wall and a left side wall of the casing 10.

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

The outdoor heat exchanger 112 and the outdoor fan 111 are disposed in the fan chamber 11. The outdoor fan 111 is configured to drive outdoor air to enter the casing 10 from the outdoor air inlet 101 and exchange heat with the outdoor heat exchanger 112, and the air after being subject to the heat exchange is discharged through the outdoor air outlet 102. The compressor assembly 20 is disposed in the compressor chamber 12. The compressor assembly 20 may play a role in compressing and driving a refrigerant in a refrigerant circuit.

The electric control box assembly 30 is disposed in the casing 10 and disposed at the first partition plate 113, which can make each of a distance between the electric control box assembly 30 and the fan chamber 11 and a distance between the electric control box assembly 30 and the compressor chamber 12 relatively short, facilitating control of parts in the fan chamber 11 and the compressor chamber 12 by the electric control box assembly 30.

The electric control box assembly 30 includes an electric control box 3. The electric control box 3 includes an electric control box body 31 and an electric control component 32 disposed in the electric control box body 31. The electric control component 32 includes an electric control board 321 and a plurality of elements 322 disposed at the electric control board 321. The electric control box body 31 may play a role in receiving and protecting the electric control component 32. The electric control component 32 may be configured to control operation states of other parts.

The electric control board 321 has a first side and a second side that are located at two opposite sides of the electric control board 321 in a thickness direction of the electric control board 321 respectively. At least part of the plurality of elements is disposed at the first side of the electric control board 321. For example, part of the elements 322 on the electric control board 321 is disposed at the first side of the electric control board 321, or all of the elements 322 on the electric control board 321 are disposed at the first side of the electric control board 321. The first side of the electric control board 321 faces the fan chamber 11.

When the electric control component 32 in the electric control box 3 is in operation, the elements of the electric control component 32 generates a large amount of heat, causing a temperature in the electric control box 3 to be too high. In response to an overall heat dissipation effect on the electric control box 3 being poor, a control effect of the electric control component 32 on other parts is affected, and the elements 322 are caused to occur problems such as aging and failure. Therefore, the first side of the electric control board 321 faces the fan chamber 11, which makes a distance between the element 322 disposed on the first side of the electric control board 321 and the fan chamber 11 relatively short. The outdoor fan 111 is disposed the fan chamber 11, and the outdoor fan 111 may utilize flow of air to improve the heat exchange between the outdoor heat exchanger 112 and the air. During the process of the outdoor fan 111 driving the air to flow, by making the first side of the electric control board 321 face the fan chamber 11, and the flow of the air in the fan chamber 11 may be utilized to take away the heat of the elements 322 disposed at the first side of the electric control board 321, which is beneficial to the improve the overall heat dissipation efficiency of the electric control component 32 and prolong the service life of the electric control component 32.

In the outdoor unit 100 according to the embodiments of the present disclosure, by disposing the electric control box assembly 30 at the first partition plate 113, the first side of the electric control board 321 that is provided with at least part of the elements 322 faces the fan chamber 11, and the flow of the air in the fan chamber 11 may be utilized to take away the heat of the first side of the electric control board 321, which is beneficial to the improve the overall heat dissipation efficiency of the electric control component 32 and prolong the service life of the electric control component 32.

According to some embodiments of the present disclosure, at least part of the plurality of elements 322 are power devices. For example, part of the plurality of elements 322 are power devices, or all of the plurality of elements 322 are power devices. The power device is an element generating a large heat generation amount. The at least part of the power devices are located at the first side of the electric control board 321. For example, part of or all of the power devices are located at the first side of the electric control board 321. Since heat generated by the power device during the operation of the electric control component 32 is more than heat generated by other elements 322, at least part of the power devices are located at the first side of the electric control board 321, which can make a distance between the power device and the fan chamber 11 relatively short, is beneficial to the improvement of the overall heat dissipation efficiency of the electric control component 32, and ensures normal use of the electric control component 32.

According to some embodiments of the present disclosure, referring to FIG. 2, the electric control box assembly 30 includes a first radiator 4 disposed at a side of the electric control box 3 adjacent to the fan chamber 11, and the first radiator 4 is at least partially located in the fan chamber 11. For example, the first radiator 4 may be partially or completely located in the fan chamber 11. The first radiator 4 may provide a heat dissipation and cooling effect on the electric control component 32. Heat generated by the electric control component 32 during operation is transferred to the electric control box 3 and is transferred to the first radiator 4 through the electric control box 3. The first radiator 4 may dissipate the heat of the electric control box 3, realizing the heat dissipation and cooling effect of the first radiator 4 on the electric control component 32.

Since the fan chamber 11 is internally provided with the outdoor fan 111, the outdoor fan 111 may use the flow of the air to improve the heat exchange between the outdoor heat exchanger 112 and the air. The first radiator 4 is disposed at the side of the electric control box 3 adjacent to the fan chamber 11 and is at least partially located in the fan chamber 11. During the operation of the outdoor fan 111, the flow of the air in the fan chamber 11 may be utilized to quickly take away heat of the first radiator 4, which improves an overall heat dissipation effect on the first radiator 4, and thus can improve heat dissipation efficiency of the first radiator 4 for the electric control component 32.

According to some embodiments of the present disclosure, referring to FIG. 8 to FIG. 13, an inner wall of the electric control box body 31 facing the first side of the electric control board 321 is formed into a profiling structure 313. The profiling structure 313 has a shape similar to a shape of the first side of the electric control component 32. The profiling structure 313 may cause a distance between the inner wall of the electric control box body 31 facing the first side of the electric control board 321 and the element 322 on the first side of the electric control board 321 to be relatively short, which can facilitate heat dissipation and cooling of the elements 322 by the first radiator 4, and improve the overall heat dissipation effect on the electric control component 32.

When the electric control component 32 is in an operation state, a temperature of the elements 322 on the first side of the electric control board 321 rises. The profiling structure 313 causes the distance between the inner wall of the electric control box body 31 facing the first side of the electric control board 321 and the element 322 on the first side of the electric control board 321 to be relatively short, and the heat of the element 322 may be quickly transferred to the electric control box body 31. In this way, it is convenient to heat dissipation of the element 322 on the first side of the electric control board 321 by the first radiator 4 outside the electric control box body 31, it is beneficial to an improvement in overall heat dissipation and cooling efficiency of the electric control component 32, and the normal use of the electric control component 32 is better ensured.

According to some embodiments of the present disclosure, at least part of the plurality of elements 322 are in direct contact with the profiling structure 313. For example, part of or all the elements 322 are in contact with the profiling structure 313. During the operation of the electric control component 32, part of the elements 322 generate heat, causing an overall temperature of the electric control component 32 to rise, and heat conduction efficiency of the air to be poorer than heat conduction efficiency of the electric control box body 31. Therefore, at least part of the elements 322 are in direct contact with the profiling structure 313 of the electric control box body 31, which can allow the heat of the element 322 to be transferred to the electric control box body 31 through the profiling structure 313, and then to the first radiator 4 outside the electric control box body 31 through the electric control box body 31. In this way, quick cooling of the element 322 by the first radiator 4 is realized, and use performance of the element 322 is ensured.

According to some embodiments of the present disclosure, a safety gap is formed between at least part of the plurality of elements 322 and the profiling structure 313. For example, a safety gap is formed between part of the elements 322 and the profiling structure 313 or between all the elements 322 and the profiling structure 313. The safety gap may provide a protection effect on the element 322, to avoid a problem of damage to the element 322 caused by the occurrence of collision between the element 322 and the profiling structure 313 of the electric control box body 31 during mounting or use of the element 322, ensuring normal use performance of the element 322. For example, the value of the safety gap may be determined according to a mounting provision requirement of the element 322.

According to some embodiments of the present disclosure, a heat conduction layer is filled between at least part of the plurality of elements 322 and the profiling structure 313. For example, a heat conduction layer is filled between part of the elements 322 and the profiling structure 313 or between all the elements 322 and the profiling structure 313. The heat conduction layer has good heat conduction performance. The heat conduction layer is filled between the element 322 and the profiling structure 313 of the electric control box body 31, which can be beneficial to heat transfer between the element 322 and the profiling structure 313, allow the heat of the element 322 to be quickly transferred to the electric control box body 31, and thus can improve heat dissipation efficiency of the first radiator 4 for the element 322. For example, the heat conduction layer may be a heat conduction pad, heat conduction grease, or other structures.

According to some embodiments of the present disclosure, referring to FIG. 9 to FIG. 13, the profiling structure 313 includes a first groove 3132 and a second groove 3133. The first groove 3132 and the second groove 3133 of the profiling structure 313 may be opposite to an element 322 with a relatively high height, which can provide an avoidance effect on the element 322 and avoid the occurrence of collision between the inner wall of the electric control box body 31 and the element 322.

Elements 322 of the plurality of elements 322 corresponding to the first groove 3132 constitute a first element group. The heat conduction layer is formed between the first element group and an inner wall of the first groove 3132. The heat conduction layer has good heat conduction performance. The heat conduction layer is filled between the first element group and the first groove 3132, which can be beneficial to heat transfer between the first element group and the first groove 3132. When the electric control component 32 operates, heat generated by the first element group may be quickly transferred to the inner wall of the first groove 3132 through the heat conduction layer and then to the first radiator 4 through the electric control box body 31, which can improve heat dissipation efficiency of the first radiator 4 for the first element group. For example, the heat conduction layer may be a heat conduction pad, heat conduction grease, or other structures.

Alternatively, the first element group is in direct contact with the inner wall of the first groove 3132, which allows the heat of the element 322 to be directly transferred to the electric control box body 31 through the first groove 3132 and then to the first radiator 4 outside the electric control box body 31 through the electric control box body 31, realizing the quick cooling of the element 322 by the first radiator 4 and ensuring the use performance of the element 322. For example, the first element group may include a power device such as an inductor and a capacitor.

Elements 322 of the plurality of elements 322 corresponding to the second groove 3133 constitute a second element group. The safety gap is formed between the second element group and an inner wall of the second groove 3133. The safety gap may provide a protection effect on the second element group, to avoid a problem of damage to the second element group caused by the occurrence of collision between the second element group and the inner wall of the second groove 3133 during mounting or use of the second element group, ensuring normal use performance of the second element group.

For example, the second element group may include a non-power device. Since heat generated by the non-power device during operation of the non-power device is much smaller than the heat generated by the power device, a heat dissipation and cooling requirement of the second element group is relatively low. The arrangement of the safety gap may satisfy both safety performance and the heat dissipation and cooling requirement of the second element group. The value of the safety gap may be determined according to the mounting provision requirement of the element 322.

According to some embodiments of the present disclosure, referring to FIG. 9 to FIG. 13, the profiling structure 313 includes a convex beam 3131. The convex beam 3131 of the profiling structure 313 may be opposite to an element 322 with a relatively low height, causing a distance between the inner wall of the electric control box body 31 and the element 322 to be relatively short.

Elements 322 of the plurality of elements 322 corresponding to the convex beam 3131 constitute a third element group. The third element group is in direct contact with the convex beam 3131. During the operation of the electric control component 32, the third element group generates heat, causing the overall temperature of the electric control component 32 to rise, and the heat conduction efficiency of the air is poorer than the heat conduction efficiency of the electric control box body 31. Therefore, the third element group is in direct contact with the convex beam 3131, which can allow the heat of the third element group to be directly transferred to the convex beam 3131 and then to the first radiator 4 outside the electric control box body 31, realizing quick cooling of the third element group by the first radiator 4 and ensuring use performance of the third element group.

Alternatively, the heat conduction layer is formed between the third element group and the convex beam 3131. The heat conduction layer has good heat conduction performance. The heat conduction layer is filled between the third element group and the convex beam 3131, which can be beneficial to heat transfer between the third element group and the convex beam 3131. When the electric control component 32 operates, the heat generated by the third element group may be quickly transferred to the convex beam 3131 through the heat conduction layer and then to the first radiator 4 through the electric control box body 31, which can improve the heat dissipation efficiency of the first radiator 4 for the first element group. For example, the heat conduction layer may be a heat conduction pad, heat conduction grease, or other structures.

For example, the third element group may include a power device such as an insulated gate bipolar transistor, a diode, and a control module of the outdoor fan 111.

According to some embodiments of the present disclosure, referring to FIG. 9 to FIG. 13, the profiling structure 313 includes a convex beam 3131, a first groove 3132, and a second groove 3133. The convex beam 3131 is located at a middle part of the electric control box body 31, and the first groove 3132 and the second groove 3133 are located at two sides of the convex beam 3131 in a width direction of the convex beam 3131, respectively. The first groove 3132 and the second groove 3133 of the profiling structure 313 may be opposite to the element 322 with a relatively high height, which can provide the avoidance effect on the element 322, avoiding the occurrence of the collision between the inner wall of the electric control box body 31 and the element 322. The convex beam 3131 of the profiling structure 313 may be opposite to the element 322 with a relatively low height, causing the distance between the inner wall of the electric control box body 31 and the element 322 to be relatively short.

According to some embodiments of the present disclosure, elements 322 of the plurality of elements 322 corresponding to the first groove 3132 constitute a first element group. The heat conduction layer is formed between the first element group and an inner wall of the first groove 3132. The heat conduction layer has good heat conduction performance. The heat conduction layer is filled between the first element group and the first groove 3132, which can be beneficial to the heat transfer between the first element group and the first groove 3132. When the electric control component 32 operates, the heat generated by the first element group may be quickly transferred to the inner wall of the first groove 3132 through the heat conduction layer and then to the first radiator 4 through the electric control box body 31, which can improve the heat dissipation efficiency of the first radiator 4 for the first element group. For example, the first element group may include a power device such as an inductor and a capacitor. The heat conduction layer may be a heat conduction pad, heat conduction grease, or other structures.

Elements 322 of the plurality of elements 322 corresponding to the convex beam 3131 constitute a second element group. The second element group is in direct contact with the convex beam 3131. During the operation of the electric control component 32, the second element group generates heat, causing the overall temperature of the electric control component 32 to rise, and the heat conduction efficiency of the air is poorer than heat conduction efficiency of the electric control box body 31. Therefore, the second element group is in direct contact with the convex beam 3131, which can allow the heat of the second element group to be directly transferred to the convex beam 3131 and then to the first radiator 4 outside the electric control box body 31, realizing quick cooling of the second element group by the first radiator 4 and ensuring the use performance of the second element group. For example, the second element group may include a power device such as an insulated gate bipolar transistor, a diode, and a control module of the outdoor fan 111.

Elements 322 of the plurality of elements 322 corresponding to the convex beam 3131 constitute a third element group. The safety gap is formed between the third element group and an inner wall of the second groove 3133. The safety gap may provide a protection effect on the third element group, to avoid a problem of damage to the third element group caused by the occurrence of collision between the third element group and the inner wall of the second groove 3133 during mounting or use of the third element group, ensuring normal use performance of the third element group.

For example, the third element group may include a non-power device. Since the heat generated by the non-power device during the operation of the non-power device is much smaller than the heat generated by the power device, a heat dissipation and cooling requirement of the third element group is relatively low. The arrangement of the safety gap may satisfy both safety performance and the heat dissipation and cooling requirement of the third element group. The value of the safety gap may be determined according to the mounting provision requirement of the element 322.

According to some embodiments of the present disclosure, referring to FIG. 6 and FIG. 16, a surface of the first radiator 4 facing the fan chamber 11 has an avoidance inclined surface 43 configured to avoid the outdoor fan 111. The avoidance inclined surface 43 extends obliquely away from the outdoor fan 11 in a direction from top to bottom. The arrangement of the avoidance inclined surface 43 may allow for a predetermined safety gap between the first radiator 4 and the outdoor fan 111, avoiding the occurrence of collision between the first radiator 4 and the outdoor fan 111 and ensuring safety performance of the first radiator 4. Meanwhile, the heat dissipation and cooling effect of the outdoor fan 111 on the first radiator 4 may be ensured, and the heat dissipation efficiency of the first radiator 4 for the electric control box 3 may be ensured.

According to some embodiments of the present disclosure, referring to FIG. 6 and FIG. 7, the first radiator 4 includes a plurality of first radiating fins 41 arranged at intervals. The plurality of first radiating fins 41 may be uniformly arrange at intervals in a front-rear direction. The plurality of first radiating fins 41 may increase a heat exchange area of the first radiator 4 and improve heat dissipation efficiency of the first radiator 4. A first heat dissipation channel 42 is defined between adjacent first radiating fins 41 of the plurality of first radiating fins 41. The first heat dissipation channel 42 extends in an up-down direction. 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 provided. The plurality of first heat dissipation channels 42 may be arranged at intervals in the front-rear direction. The outdoor fan 111 mainly dissipates heat from surrounding parts by utilizing the flow of the air. When the outdoor fan 111 operates, the airflow may be caused to flow through the first heat dissipation channel 42 between adjacent first radiating fins 41. During the process of the airflow flowing in the first heat dissipation channel 42, the airflow may exchange heat with the adjacent first radiating fins 41. In this way, after the airflow flows out of the first heat dissipation channel 42, the heat of the first radiating fins 41 may be taken away, providing the heat dissipation and cooling effect on the first radiator 4, making the heat dissipation effect of the first radiator 4 on the electric control box 3 better.

Since a rotation axis of the outdoor fan 111 extends in the front-rear direction, and the first heat dissipation channel 42 extend in the up-down direction, causing an extending direction of the first heat dissipation channel 42 to be perpendicular to an extending direction of the rotation axis of the outdoor fan 111, which can facilitate flow of the airflow along the first heat dissipation channel 42 during rotation of the outdoor fan 111, making a heat dissipation effect of the outdoor fan 111 on the first radiator 4 better.

According to some embodiments of the present disclosure, referring to FIG. 2 to FIG. 5 and FIG. 14 to FIG. 15, the outdoor unit 100 includes a first air guide hood 1131 located on a top of the first radiator 4. The first air guide hood 1131 and the first radiator 4 together define a first air guide cavity 1132, or the first air guide hood 1131, the first radiator 4, and the first partition plate 113 together define the first air guide cavity 1132. The compressor chamber 12 is in communication with the first heat dissipation channel 42 through the first air guide cavity 1132.

The first air guide hood 1131 may provide a flow guide effect on an airflow at the top of the first radiator 4. When the outdoor fan 111 operates, an air pressure in the fan chamber 11 is made smaller than an air pressure in the compressor chamber 12. Since the compressor chamber 12 is connected to the first heat dissipation channel 42 through the first air guide cavity 1132, and the first heat dissipation channel 42 is connected to the fan chamber 11, air in the compressor chamber 12 may 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 action of an air pressure difference between the fan chamber 11 and the compressor chamber 12. During a process of the airflow flowing through the first heat dissipation channel 42, the airflow may exchange heat with the adjacent first radiating fins 41. When the airflow flows out of the first heat dissipation channel 42, the heat of the first radiating fins 41 may be taken away, providing the heat dissipation effect on the first radiator 4 and thus improving the heat dissipation effect of the first radiator 4 on the electric control box 3.

According to some embodiments of the present disclosure, referring to FIG. 2, FIG. 5, and FIG. 15, a side of the first air guide hood 1131 facing the compressor chamber 12 has a first air guide port 1138, and an airflow in the compressor chamber 12 is adapted to flow into the first air guide cavity 1132 through the first air guide port 1138 and flow downwards through the first heat dissipation channel 42. When the outdoor fan 111 operates, the outdoor fan 111 drives the air in the fan chamber 11 to flow outwards, making the air pressure in the fan chamber 11 smaller than the air pressure in the compressor chamber 12. Since the compressor chamber 12 is connected to 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 connected to the fan chamber 11, under the action of the air pressure difference between the fan chamber 11 and the compressor chamber 12, the air in the compressor chamber 12 may flow into the first air guide cavity 1132 through the first air guide port 1138 on the first air guide hood 1131, and air in the first air guide cavity 1132 may flow downwards along the first heat dissipation channel 42 and finally flow out of the first heat dissipation channel 42 and into the fan chamber 11. During the process of the airflow flowing through the first heat dissipation channel 42, the airflow may exchange heat with the adjacent first radiating fins 41. When flowing out of the first heat dissipation channel 42, the airflow may take away the heat of the first radiating fins 41, providing the heat dissipation effect on the first radiator 4 and further improving the heat dissipation effect of the first radiator 4 on the electric control box 3.

According to some embodiments of the present disclosure, referring to FIG. 14, the first air guide hood 1131 has a first surface 1131a facing the fan chamber 11, and a part of the first surface 1131a adjacent to the first radiator 4 is flush with a surface of the first radiator 4 facing the fan chamber 11. This arrangement may ensure that the airflow in the first air guide cavity 1132 may flow into the first heat dissipation channel 42 along the first air guide hood 1131 under the action of the first air guide hood 1131, which can better improve the heat dissipation effect of the outdoor fan 111 on the first radiator 4.

According to some embodiments of the present disclosure, referring to FIG. 14 and FIG. 15, an upper end of the first radiator 4 is located in the first air guide hood 1131. This arrangement allows the airflow in the first air guide cavity 1132 to flow along the first heat dissipation channel 42 of the first radiator 4 under the action of the first air guide hood 1131, allowing for more airflow flowing in the first heat dissipation channel 42. In this way, a heat exchange amount between the airflow and the adjacent first radiating fins 41 can be increased, providing a better overall heat dissipation effect on the first radiator 4. For example, a distance between a part of the first surface 1131a of the first air guide hood 1131 adjacent to the first radiator 4 and the surface of the first radiator 4 facing the fan chamber 11 in a horizontal direction may range from 0 mm to 5 mm, which can better improve the heat dissipation effect of the outdoor fan 111 on the first radiator 4.

According to some embodiments of the present disclosure, referring to FIG. 2 and FIG. 14, the outdoor unit 100 includes a second air guide hood 1134. The second air guide hood 1134 is located at a bottom of the first radiator 4. The second air guide hood 1134 and the first radiator 4 together define a second air guide cavity 1135, or the second air guide hood 1134, the first radiator 4, and the first partition plate 113 together define the second air guide cavity 1135. 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 hood 1134 may provide a flow guide effect on an airflow at the bottom of the first radiator 4. When the outdoor fan 111 operates, the air pressure in the fan chamber 11 is caused to be smaller than the air pressure in the compressor chamber 12. Since the compressor chamber 12 is connected to the first heat dissipation channel 42 through the second air guide cavity 1135, and the first heat dissipation channel 42 is connected to the fan chamber 11, the air in the compressor chamber 12 may 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 action of the air pressure difference between the fan chamber 11 and the compressor chamber 12. During the process of the airflow flowing through the first heat dissipation channel 42, the airflow may exchange heat with the adjacent first radiating fins 41. When flowing out of the first heat dissipation channel 42, the airflow may take away the heat of the first radiating fins 41, providing the heat dissipation effect on the first radiator 4 and further improving the heat dissipation effect of the first radiator 4 on the electric control box 3.

According to some embodiments of the present disclosure, referring to FIG. 14, the second air guide hood 1134 has a second surface 1134a facing the fan chamber 11, and a part of the second surface 1134a adjacent to the first radiator 4 is flush with a surface of the first radiator 4 facing the fan chamber 11. This arrangement may ensure that an airflow in the second air guide cavity 1135 may flow into the first heat dissipation channel 42 along the second air guide hood 1134 under the action of the second air guide hood 1134, which can better improve the heat dissipation effect of the outdoor fan 111 on the first radiator 4.

According to some embodiments of the present disclosure, referring to FIG. 14 and FIG. 15, a lower end of the first radiator 4 is located in the second air guide hood 1134. This arrangement allows for the airflow in the second air guide cavity 1135 to flow along the first heat dissipation channel 42 of the first radiator 4 under the action of the second air guide hood 1134, allowing for more air flow flowing in the first heat dissipation channel 42. In this way, the heat exchange amount between the air flow and the adjacent first radiating fins 41 can be increased, providing a better overall heat dissipation effect on the first radiator 4. For example, a distance between a part of the second surface 1134a of the second air guide hood 1134 adjacent to the first radiator 4 and the surface of the first radiator 4 facing the fan chamber 11 in the horizontal direction may range from 0 mm to 5 mm, which can better improve the heat dissipation effect of the outdoor fan 111 on the first radiator 4.

According to some embodiments of the present disclosure, referring to FIG. 5 and FIG. 15, the second air guide cavity 1135 is in communication with the compressor chamber 12 through a second air guide port 1139, and an airflow in the compressor chamber 12 is adapted to flow into the second air guide cavity 1135 through the second air guide port 1139 and flow upwards through the first heat dissipation channel 42. When the outdoor fan 111 operates, the outdoor fan 111 drives the air in the fan chamber 11 to flow outwards, making the air pressure in the fan chamber 11 smaller than the air pressure in the compressor chamber 12. Since the compressor chamber 12 is connected to 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 connected to the fan chamber 11, under the action of the air pressure difference between the fan chamber 11 and the compressor chamber 12, the air in the compressor chamber 12 may flow into the second air guide cavity 1135 through the second air guide port 1139, and the air in the second air guide cavity 1135 may flow upwards along the first heat dissipation channel 42, and finally flow out of the first heat dissipation channel 42 and enter the fan chamber 11. During the process of the airflow flowing through the first heat dissipation channel 42, the airflow may exchange heat with the adjacent first radiating fins 41, and the air flow may take away the heat of the first radiating fins 41 when flowing out of the first heat dissipation channel 42, providing the heat dissipation effect on the first radiator 4 and further improving the heat dissipation effect of the first radiator 4 on the electric control box 3.

For example, in some embodiments of the present disclosure, referring to FIG. 14 and FIG. 15, when the outdoor fan 111 operates, the air pressure in the fan chamber 11 is caused to be smaller than the air pressure in the compressor chamber 12. Under the action of the air pressure difference between the fan chamber 11 and the compressor chamber 12, the air in the compressor chamber 12 flows towards the fan chamber 11. Since the compressor chamber 12 is connected to the upper part of the first heat dissipation channel 42 through the first air guide cavity 1132, the compressor chamber 12 is connected to the lower part of the first heat dissipation channel 42 through the second air guide cavity 1135, and the first heat dissipation channel 42 is connected to the fan chamber 11.

Therefore, a part of the air in the compressor chamber 12 can flow into the first air guide cavity 1132 through the first air guide port 1138 above the first radiator 4. The air in the first air guide cavity 1132 may flow into the first heat dissipation channel 42, and the airflow entering the first heat dissipation channel 42 from the first air guide cavity 1132 may flow downwards along the first heat dissipation channel 42 and flows out of the first heat dissipation channel 42 and into the fan chamber 11 after flowing to a middle position of the first heat dissipation channel 42. Another part of the air in the compressor chamber 12 may enter the second air guide cavity 1135 below the first radiator 4 through the second air guide port 1139, then flow into the first heat dissipation channel 42 after flowing through the second air guide cavity 1135. The airflow entering the first heat dissipation channel 42 from the second air guide cavity 1135 may flow upwards along the first heat dissipation channel 42 and flows out of the first heat dissipation channel 42 and into the fan chamber 11 after flowing to the middle position of the first heat dissipation channel 42. During the process of the airflow flowing through the first heat dissipation channel 42, the airflow may exchange heat with the adjacent first radiating fins 41, and may take away the heat from the adjacent first radiating fins 41 when flowing out of the first heat dissipation channel 42, providing the heat dissipation effect on the first radiator 4 and further improving the heat dissipation effect of the first radiator 4 on the electric control box 3.

For example, in other embodiments of the present disclosure, referring to FIG. 16, a side of the second air guide hood 1134 facing the fan chamber 11 is connected to a side of the first air guide hood 1131 facing the fan chamber 11 in an up-down direction. The first radiator 4 is entirely located in the first air guide hood 1131 and the second air guide hood 1134, and the first air guide hood 1131 has a plurality of air outlets.

Under the action of the air pressure difference between the fan chamber 11 and the compressor chamber 12, a part of the air in the compressor chamber 12 may sequentially flow through the first air guide cavity 1132 and the first heat dissipation channel 42 through the first air guide port 1138, and flow into the fan chamber 11 through a heat dissipation air outlet 1131b on the first air guide hood 1131. Another part of the air in the compressor chamber 12 may enter the second air guide cavity 1135 through the second air guide port 1139, and the airflow in the second air guide cavity 1135 flows upwards along the first heat dissipation channel 42, and finally flows into the fan chamber 11 through the heat dissipation air outlet 1131b on the first air guide hood 1131. During the process of the airflow flowing through the first heat dissipation channel 42, the airflow may perform heat exchange with the adjacent first radiating fins 41, and may take away the heat of the first radiating fins 41 when flowing out of the first heat dissipation channel 42, providing the heat dissipation effect on the first radiator 4 and further improving the heat dissipation effect of the first radiator 4 on the electric control box 3.

According to some embodiments of the present disclosure, referring to FIG. 3 and FIG. 4, a soundproof hood 25 is provided and covers outside the compressor assembly 20. The soundproof hood 25 may provide a sound absorption and insulation effect on the compressor assembly 20, which can effectively reduce overall noise of the outdoor unit 100. The soundproof hood 25 and a base 16 of the casing 10 define a soundproof cavity 254 configured to receive the compressor assembly 20, and the second air guide port 1139 is located outside the soundproof hood 25, which can prevent noise of the compressor assembly 20 in the soundproof cavity 254 from being transmitted from the second air guide port 1139, ensuring an overall noise reduction effect on the compressor assembly 20. Meanwhile, the second air guide port 1139 is located at an outer side of the soundproof hood 25. In this way, it can also be ensured that the air in the compressor chamber 12 may quickly flow into the second air guide cavity 1135, causing a ventilation capacity in the second air guide cavity 1135 to be relatively large, and it is beneficial to heat dissipation of the first radiator 4 by the outdoor fan 111.

According to some embodiments of the present disclosure, referring to FIG. 3, a side of the second air guide cavity 1135 facing the compressor chamber 12 is open to form a second air guide port 1139. This arrangement may facilitate flow of the air in the compressor chamber 12 into the second air guide cavity 1135 through the second air guide port 1139, ensuring the ventilation capacity in the second air guide cavity 1135 and improving the overall heat dissipation effect on the first radiator 4 and the electric control box assembly 30. When the outdoor fan 111 operates, under the action of the air pressure difference between the fan chamber 11 and the compressor chamber 12, the air in the compressor chamber 12 may flow into the second air guide cavity 1135 through the second air guide port 1139, then flow upwards along the first heat dissipation channel 42 under the action of the second air guide hood 1134, and finally flow out of the first heat dissipation channel 42 and enter the fan chamber 11, providing the heat dissipation effect on the first radiator 4.

According to some embodiments of the present disclosure, referring to FIG. 3 and FIG. 4, the first partition plate 113 includes a first sub-partition plate 1136 and a second sub-partition plate 1137 that are arranged in the left-right direction. The second sub-partition plate 1137 is located at a side of the first sub-partition plate 1136 adjacent to the compressor chamber 12. The second sub-partition plate 1137 includes a partition plate body 1137a and a partition plate flange 1137b connected to a front side of the partition plate body 1137a and a rear side of the partition plate body 1137a. The partition plate body 1137a constitutes a part of the soundproof hood 25. It is possible to reduce an overall cost of the soundproof hood 25, while reducing an overall space occupied by the soundproof hood 25, making an internal structure of the compressor chamber 12 more compact.

The second sub-partition plate 1137, the first sub-partition plate 1136, the second air guide hood 1134, and the first radiator 4 together define the second air guide cavity 1135, and a second air guide port 1139 is formed on the partition plate flange 1137b. On the one hand, it can be facilitated that the air in the compressor chamber 12 flows into the second air guide cavity 1135 through the second air guide port 1139, ensuring the ventilation capacity in the second air guide cavity 1135 and improving the overall heat dissipation effect on the first radiator 4 and the electric control box assembly 30. On the other hand, the air guide port is formed on the partition plate flange 1137b, making the air guide port located at the outer side of the soundproof hood 25, which can prevent the noise of the compressor assembly 20 inside the soundproof hood 25 from being transmitted through the air guide port, ensuring the overall noise reduction effect on the compressor assembly 20.

When the outdoor fan 111 operates, the outdoor fan 111 drives the air in the fan chamber 11 to flow, making the air pressure in the fan chamber 11 smaller than the air pressure in the compressor chamber 12. Since the compressor chamber 12 is connected to the lower part of the first heat dissipation channel 42 through the second air guide cavity 1135, and the first heat dissipation channel 42 is connected to the fan chamber 11, under the action of the air pressure difference between the fan chamber 11 and the compressor chamber 12, the air in the compressor chamber 12 may enter the second air guide cavity 1135 through the second air guide port 1139 on the partition plate flange 1137b and flow upwards through the second air guide cavity 1135, then enter the first heat dissipation channel 42 of the first radiator 4 and flow upwards along the first heat dissipation channel 42, and finally flow out of the first heat dissipation channel 42 and into the fan chamber 11, providing the heat dissipation effect on the first radiator 4.

According to some embodiments of the present disclosure, referring to FIG. 6 to FIG. 8, the electric control box assembly 30 further includes a second radiator 44 disposed at a side of the electric control box 3 adjacent to the compressor chamber 12. The second radiator 44 is at least partially located in the compressor chamber 12. For example, the second radiator 44 is partially or completely located in the compressor chamber 12. The second radiator 44 may provide the heat dissipation effect on the electric control box 3, to improve an overall cooling effect on the electric control box 3, better ensuring use performance of an internal element 322 of the electric control box 3.

The second radiator 44 includes a plurality of second radiating fins 441 arranged at intervals. The plurality of second radiating fins 441 may be uniformly arrange at intervals in the front-rear direction. The plurality of second radiating fins 441 may increase a heat exchange area of the second radiator 44 and improve its heat dissipation efficiency for the electric control box 3. Adjacent second radiating fins 441 of the plurality of second radiating fins 441 define a second heat dissipation channel 442 extending in the up-down direction. There may be a plurality of second heat dissipation channels 442 that may be 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 flows towards the first heat dissipation channel 42. During the process of the airflow flowing in the second heat dissipation channel 442, the airflow may have heat exchange with the adjacent second radiating fins 441. In this way, after the airflow flows out of the second heat dissipation channel 442, the airflow can take away the heat of the second radiating fins 441, providing a heat dissipation and cooling effect on the second radiator 44, and further making a heat dissipation effect of the second radiator 44 on the electric control box 3 better.

When the outdoor fan 111 operates, the air pressure in the fan chamber 11 is caused to be smaller than the air pressure in the compressor chamber 12, and the airflow in the compressor chamber 12 flows towards the fan chamber 11 under the action of the air pressure difference. When the airflow in the compressor chamber 12 flows near the second radiator 44, a part of the air flow flows upwards along the second heat dissipation channels 442, then flows into the first heat dissipation channel 42 from an upper part of the electric control box 3, then flows downwards along the first heat dissipation channel 42, and finally flows out of the first heat dissipation channel 42 from a middle part of the first heat dissipation channel 42 in the up-down direction and into the fan chamber 11. Another part of the airflow flows downwards along the second heat dissipation channels 442, then flows into the first heat dissipation channel 42 from a lower part of the electric control box 3, flows upwards along the first heat dissipation channel 42, and finally flows out of the first heat dissipation channel 42 from the middle part of the first heat dissipation channel 42 in the up-down direction and into the fan chamber 11. During a process of the airflow sequentially flowing through the second heat dissipation channel 442 and the first heat dissipation channel 42, the airflow may exchange heat with the adjacent second radiating fins 441 and first radiating fins 41, and finally may take away the heat when flowing out of the first heat dissipation channel 42, providing the heat dissipation effect on the first radiator 4 and the second radiator 44, further improving the overall heat dissipation efficiency of the electric control box 3, and ensuring the normal use of the electric control component 30.

According to some embodiments of the present disclosure, referring to FIG. 7, a height of the first radiating fins 41 in the left-right direction is greater than a height of the second radiating fins 441 in the left-right direction. This arrangement may make a heat exchange area between the first radiating fins 41 and the airflow in the first heat dissipation channel 42 greater than a heat exchange area between the second radiating fins 441 and the airflow in the second heat dissipation channel 442. In this way, in the same time, a heat exchange amount of the first radiator 4 is greater than a heat exchange amount of the second radiator 44, making the heat dissipation efficiency of the first radiator 4 higher than the heat dissipation efficiency of the second radiator 44. Moreover, the first radiator 4 is located in the fan chamber 11, and the air in the fan chamber 11 has a relatively fast flow speed. Compared with the second radiator 44, the entire machine has a better heat dissipation effect on the first radiator 4, which enables the entire machine to provide a better heat dissipation and cooling effect on an element 322 at a side of the electric control board 321 facing the first radiator 4.

According to some embodiments of the present disclosure, referring to FIG. 6 to FIG. 8, the electric control box body 31 includes a box body 311 and a box cover 312 connected to the box body 311. The box cover 312 is connected to a side of the box body 311 adjacent to the compressor chamber 12. Each of the box body 311 and the box cover 312 is an independent molded part, which can facilitate overall assembly of the electric control box 3, while improving an overall strength and rigidity. For example, the electric control component 32 may be disposed in the box body 311, and the box body 311 may provide an effect of receiving and protecting the electric control component 32.

The first radiator 4 is disposed on the box body 311 and is integrally formed with the box body 311. When a temperature of the electric control component 32 in the electric control box 3 rises, heat of the electric control component 32 is transferred to the box body 311. The first radiator 4 and the box body 311 are integrally formed, which can allow the heat of the box body 311 to be directly transferred to the first radiator 4, reduce thermal resistance between the box body 311 and the first radiator 4, and thus make the heat dissipation effect of the first radiator 4 on the electric control box 3 better. Meanwhile, the first radiator 4 and the box body 311 are integrally formed, which can improve overall assembly efficiency and increase an overall structural strength.

The second radiator 44 is disposed on the box cover 312 and is integrally formed with the box cover 312. When the temperature of the electric control component 32 in the electric control box 3 rises, the heat of the electric control component 32 is also transferred to the box cover 312. The second radiator 44 and the box cover 312 are integrally formed, which can allow the heat of the box cover 312 to be directly transferred to the second radiator 44, reduce thermal resistance between the box cover 312 and the second radiator 44, and thus make the heat dissipation effect of the second radiator 44 on the electric control box 3 better. Meanwhile, the second radiator 44 and the box cover 312 are integrally formed, which can improve the overall assembly efficiency and increase the overall structural strength.

The first radiator and the second radiator simultaneously perform heat dissipation and cooling on the electric control box, which can make the overall heat dissipation effect on the electric control component better, improve the overall heat dissipation efficiency, and better prolong the service life of the electric control component.

According to some embodiments of the present disclosure, referring to FIG. 17 and FIG. 18, a refrigerant pipe thermally connected to the electric control box 3 is a heat dissipation refrigerant pipe 362, and the heat dissipation refrigerant pipe 362 is located at a side of the electric control box 3 facing the compressor chamber 12. Since the heat dissipation refrigerant pipe 362 is thermally connected to the electric control box 3, a refrigerant may absorb the heat of the electric control box 3 during its flow in the heat dissipation refrigerant pipe 362, providing a heat dissipation and cooling effect of the heat dissipation refrigerant pipe 362 on the electric control box 3. The heat dissipation refrigerant pipe 362 is disposed on the side of the electric control box 3 facing the compressor chamber 12, which can make a distance between the heat dissipation refrigerant pipe 362 and the compressor assembly 20 relatively short, and thus can facilitate a connection between the heat dissipation refrigerant pipe 362 and the compressor assembly 20.

According to some embodiments of the present disclosure, referring to FIG. 17 and FIG. 18, the outdoor unit 100 includes a pressing plate 36 connected to the electric control box 3, and the pressing plate 36 and an outer wall of the electric control box 3 together define a receiving hole channel 361 configured to receive the heat dissipation refrigerant pipe 362. The heat dissipation refrigerant pipe 362 is located in the receiving hole channel 361, and the pressing plate 36 and the electric control box 3 are engaged with each other, which can play a role in fixing and protecting the heat dissipation refrigerant pipe 362, preventing the heat dissipation refrigerant pipe 362 from being separated from the electric control box 3 or colliding with other parts during use of the heat dissipation refrigerant pipe 362. In addition, the heat dissipation refrigerant pipe 362 is located in the receiving hole channel 361, which can perform the heat dissipation and cooling on the electric control box 3 and the pressing plate 36 simultaneously. Since the pressing plate 36 is connected to the electric control box 3, the pressing plate 36 may also absorb the heat of the electric control box 3 and perform the heat dissipation through the heat dissipation refrigerant pipe 362, which can improve the heat dissipation and cooling effect of the heat dissipation refrigerant pipe 362 on the electric control box 3.

According to some embodiments of the present disclosure, referring to FIG. 11 to FIG. 13, the outdoor unit 100 further includes a temperature adjustment assembly 33 disposed in the electric control box body 31, and the temperature adjustment assembly 33 is configured to adjust the temperature of the electric control component 32. The temperature adjustment assembly 33 may have cooling and heating effects on the electric control component 32.

When the electric control component 32 in the electric control box 3 operates, the electric control component 32 generates a large amount of heat. Therefore, the temperature adjustment assembly 33 can adjust the temperature of the electric control component 32, and perform the heat dissipation and cooling on the electric control component 32, which can ensure the normal use of the electric control component 32 and avoid the damage to the element 322 due to a too high temperature of the electric control component 32.

When the electric control component 32 starts, in response to the temperature of the electric control component 32 being too low, a response time of the electric control component 32 is caused to be relatively long, which is not beneficial to overall control of other parts by the electric control component 32. The temperature adjustment assembly 33 may increase the temperature of the electric control component 32, which can shorten a startup time of the electric control component 32, improve startup efficiency of the electric control component 32, be beneficial to an improvement in a control effect of the electric control component 32 on other parts, and further improve a control effect and reliability of the electric control box 3.

The temperature adjustment assembly 33 includes at least one of a heat dissipation fan 331, a heat pipe 332, and an electric heating element 333. For example, the temperature adjustment assembly 33 may include one of the heat dissipation fan 331, the heat pipe 332, or the electric heating element. The temperature adjustment assembly 33 may include a heat dissipation fan 331 and a heat pipe 332, or a heat dissipation fan 331 and an electric heating element, or a heat pipe 332 and an electric heating element. The temperature adjustment assembly 33 may include a heat dissipation fan 331, a heat pipe 332, and an electric heating element.

The heat dissipation fan 331 may drive the air inside the electric control box 3 to flow, providing the heat dissipation and cooling effect on the electric control component 32. The heat pipe 332 may provide the heat dissipation and cooling effect on the electric control component 32. The electric heating element 333 may use electrical energy to perform auxiliary heating on the electric control component 32, increasing the temperature of the electric control component 32 and shortening the startup time of the electric control component 32.

According to some embodiments of the present disclosure, referring to FIG. 11 to FIG. 13, the temperature adjustment assembly 33 is mounted at the inner wall of the electric control box body 31. Since the electric control component 32 is mounted in the electric control box body 31, and the temperature adjustment assembly 33 is disposed at the inner wall of the electric control box body 31, it is possible to make a distance between the temperature adjustment assembly 33 and the electric control component 32 relatively short, and it is beneficial to a temperature adjustment of the electric control component 32 by the temperature adjustment assembly 33. In addition, the electric control box body 31 may play a role in receiving and protecting the temperature adjustment assembly 33, prevent dust and other debris from entering the temperature adjustment assembly 33 and affecting operation performance of the temperature adjustment assembly 33, and is thus beneficial to an improvement in safety and reliability of the electric control box assembly 30.

According to some embodiments of the present disclosure, the temperature adjustment assembly 33 is mounted on the electric control board 321. Since all of the elements 322 of the electric control component 32 are disposed on the electric control board 321, and the temperature adjustment assembly 33 is disposed on the electric control board 321, it is possible to make a distance between the temperature adjustment assembly 33 and the element 322 of the electric control component 32 relatively short, and it is beneficial to the temperature adjustment of the electric control component 32 by the temperature adjustment assembly 33.

According to some embodiments of the present disclosure, referring to FIG. 11 to FIG. 13, the temperature adjustment assembly 33 is mounted at the inner wall of the electric control box body 31 and the electric control board 321. Since the electric control component 32 is mounted in the electric control box body 31 and has the element 322 disposed on the electric control board 321, and the temperature adjustment assembly 33 is disposed at the inner wall of the electric control box body 31 and the electric control board 321 of the electric control component 32, it is possible to make the distance between the temperature adjustment assembly 33 and the electric control component 32 relatively short, and it is beneficial to the temperature adjustment of the electric control component 32 by the temperature adjustment assembly 33.

According to some embodiments of the present disclosure, referring to FIG. 11, the temperature adjustment assembly 33 includes a heat dissipation fan 331, and the heat dissipation fan 331 may drive the air inside the electric control box 3 to flow. In this way, it is realized that temperature distribution of each part of the electric control component 32 is more uniform, and it is beneficial to the improvement of the heat dissipation effect of the first radiator 4 on the electric control component 32. The heat dissipation fan 331 is located on the first side of the electric control board 321. The heat dissipation fan 331 may drive the air on the first side of the electric control board 321 to flow, and the air may drive the heat to flow during its flow, making heat distribution on the first side of the electric control board 321 more uniform, and avoiding a problem of the damage to the element 322 caused by an excessively higher temperature in a predetermined region on the first side of the electric control board 321 than other regions. Moreover, the heat distribution on the first side of the electric control board 321 is more uniform, which can improve the heat dissipation and cooling effect of the first radiator 4 on the first side of the electric control board 321, improve the heat dissipation efficiency of the first radiator 4 for the electric control component 32, and ensure the normal use of the electric control component 32.

According to some embodiments of the present disclosure, referring to FIG. 11, at least part of the plurality of elements 322 are power devices. For example, some or all of the plurality of elements 322 are power devices. At least part of the power devices are disposed adjacent to the heat dissipation fan 331. For example, some or all of the power devices are disposed adjacent to the heat dissipation fan 331. Since the power device has a greater heating generation amount than heating generation amounts of other elements 322 during the operation of the electric control component 32, the heat dissipation fan 331 is adjacent to at least part of the power devices, and is capable of using the flow of the air to take away heat from a nearby power device, preventing damage to the nearby power device due to a too high temperature of the nearby power device, making the heat distribution on the first side of the electric control board 321 more uniform, improving a heat dissipation and cooling effect of the first radiator 4 on the first side of the electric control board 321, improving the heat dissipation efficiency of the electric control component 32 by the first radiator 4, and ensuring the normal use of the electric control component 32.

According to some embodiments of the present disclosure, referring to FIG. 11, an angle between a rotation axis of the heat dissipation fan 331 and the electric control board 321 ranges from 0° to 5°. When the heat dissipation fan 331 rotates, the air may be driven to flow along a surface of the first side of the electric control board 321. The angle between the rotation axis of the heat dissipation fan 331 and the electric control board 321 ranging from 0° to 5° may make an air flow path longer and make heat dissipation of various positions on the first side of the electric control board 321 by the heat dissipation fan 331 more uniform, making the heat distribution on the first side of the electric control board 321 more uniform. For example, the angle between the rotation axis of the heat dissipation fan 331 and the electric control board 321 may be 0°, 1°, 2°, 3°, 4°, 5°, or the like.

According to some embodiments of the present disclosure, referring to FIG. 12, the temperature adjustment assembly 33 includes at least one heat pipe 332. For example, the temperature adjustment assembly 33 may include one or more heat pipes 332, and the heat pipe 332 may provide the heat dissipation and cooling effect on the electric control component 32.

The heat pipe 332 is located on the first side of the electric control board 321, which can make a distance between the heat pipe 332 and the element 322 on the first side of the electric control board 321 relatively short, facilitating heat dissipation and cooling of the element 322 on the first side of the electric control board 321 by the heat pipe 332 and improving the overall heat dissipation effect on the electric control component 32.

According to some embodiments of the present disclosure, referring to FIG. 12, the heat pipe 332 has a hot end 3321 and a cold end 3322. At least part of the plurality of elements 322 are power devices. For example, some or all of the plurality of elements 322 are power devices. At least part of the power devices are adjacent to the hot end 3321 of the heat pipe 332, or the cold end 3322 of at least one heat pipe 332 is adjacent to a part of the electric control board 321 without the element 322. For example, some or all of the power devices are adjacent to the hot end 3321 of the heat pipe 332, and the cold end 3322 of one or more heat pipes 332 is adjacent to the part of the electric control board 321 without the element 322. The hot end 3321 of the heat pipe 332 may absorb the heat generated by the power device, and the heat pipe 332 may transfer the heat of the hot end 3321 to the cold end 3322 for heat dissipation, providing heat dissipation and cooling of the element 322 near the hot end 3321 and ensuring the normal use performance of the element 322.

When the electric control component 32 is in operation, the element 322 may generate heat. The power device generates relatively more heat, while the part of the electric control board 321 without the element 322 does not generate heat. Therefore, a hot end 3321 of the heat pipe 332 adjacent to the power device may absorb a large amount of heat, and the hot end 3321 may transfer the absorbed heat to the cold end 3322 adjacent to the part without the element 322 through the heat pipe 332, providing a heat dissipation and cooling effect of the heat pipe 332 on the element 322.

According to some embodiments of the present disclosure, referring to FIG. 12, at least one heat pipe 332 extends in the up-down direction, the cold end 3322 of the heat pipe 332 may be located at an upper end of the heat pipe 332, and the hot end 3321 of the heat pipe 332 may be located at a lower end of the heat pipe 332. The heat pipe 332 extends in the up-down direction, which can allow a heat exchange medium in the heat pipe 332 to flow downwards from the cold end 3322 to the hot end 3321 by its own gravity, and is also beneficial to upward flow of the heat exchange medium at the hot end 3321 to the cold end 3322. In this way, it is possible to avoid the arrangement of a device configured to drive the flow of the heat exchange medium in the heat pipe 332, and it is beneficial to a reduction in an overall cost of the heat pipe 332.

According to some embodiments of the present disclosure, referring to FIG. 12, at least one heat pipe 332 extends in a serpentine line in the up-down direction. The heat pipe 332 extends in a serpentine line, which can make the heat pipe 332 have a relatively long overall length, enabling the heat pipe 332 to absorb more heat. Meanwhile, it is possible to make an overall structure of the heat pipe 332 more compact, improving a space utilization rate in the electric control box body 31. In addition, the heat pipe 332 extends in a serpentine line, which is beneficial to an increase in a heat exchange area of the electric control component 32 by the heat pipe 332, improving the heat exchange efficiency of the temperature adjustment assembly 33 for the electric control component 32.

According to some embodiments of the present disclosure, referring to FIG. 12, the profiling structure 313 includes a convex beam 3131, a first groove 3132, and a second groove 3133. The convex beam 3131 is located at the middle part of the electric control box body 31, and the first groove 3132 and the second groove 3133 are located at the two sides of the convex beam 3131 in the width direction of the convex beam 3131, respectively. The first groove 3132 and the second groove 3133 of the profiling structure 313 may be opposite to the element 322 with a relatively high height, which can provide the avoidance effect on the element 322 and avoid the collision between the inner wall of the electric control box body 31 and the element 322. The convex beam 3131 of the profiling structure 313 may be opposite to the element 322 with a relatively low height, making the distance between the inner wall of the electric control box body 31 and the element 322 relatively short.

The heat pipe 332 penetrates or is internally embedded in the convex beam 3131. On the one hand, the convex beam 3131 may play a role in mounting, fixing, and protecting the heat pipe 332, preventing the heat pipe 332 from being damaged due to its collision with other structures during its use and mounting. On the other hand, it is possible to make the distance between the heat pipe 332 and the element 322 of the electric control component 32 relatively short, and it is beneficial to an improvement in the heat dissipation and cooling effect of the heat pipe 332 on the electric control component 32.

According to some embodiments of the present disclosure, referring to FIG. 13, the temperature adjustment assembly 33 includes an electric heating element 333 capable of performing the auxiliary heating on the electric control component 32 using electrical energy. In this way, the temperature of the electric control component 32 is improved, and normal startup of the electric control component 32 is ensured. The electric heating element 333 extends in a circumferential direction of the electric control component 32, which can make heating of the entire electric control component 32 by the electric heating element 333 more uniform and is beneficial to an improvement in a heating and temperature-raising effect of the electric heating element 333 on each element 322 of the electric control component 32, ensuring overall heating efficiency for the element 322.

For example, the electric heating element 333 and the inner wall of the electric control box body 31 may be relatively fixed by a snap, to facilitate mounting and disassembly of the electric heating element 333 and replacement and maintenance of the electric heating element 333. The electric heating element 333 may be electrically connected to a power supply in the electric control box 3, enabling the electric heating element 333 to operate normally. Alternatively, the electric heating element 333 may be electrically connected to other power sources outside the electric control box 3, enabling the electric heating element 333 to operate normally.

According to some embodiments of the present disclosure, referring to FIG. 6 to FIG. 13, the electric control box body 31 includes a box body 311 and a box cover 312, and each of the box body 311 and the box cover 312 is an independent molded part, which can facilitate the overall assembly of the electric control box 3, while improving the overall strength and rigidity. A flange 3111 is formed on an outer edge of the box body 311, and the flange 3111 is connected to the box cover 312. The box body 311 and the box cover 312 are connected through the flange 3111, which can facilitate mounting and disassembly of the box body 311 and the box cover 312, facilitating the overall assembly of the electric control box 3. Meanwhile, a processing process of the flange 3111 is simple and convenient, and a structural strength of a connection between the box body 311 and the box cover 312 can be improved.

According to some embodiments of the present disclosure, referring to FIG. 8, a sealing member 317 is provided between the flange 3111 and the box cover 312. The sealing member 317 between the box cover 312 and the flange 3111 of the box body 311 may provide a sealing effect on the electric control box 3. During the operation of the electric control component 32, the sealing member 317 may prevent an external liquid or a flammable gas from entering the electric control box 3 and causing the damage to the electric control component 32, ensuring the normal use of the electric control component 32. For example, the sealing member 317 may be a sealant, a sealing pad, or the like.

According to some embodiments of the present disclosure, referring to FIG. 9 to FIG. 13, a wire routing groove 34 is formed on an inner peripheral wall of the electric control box body 31 and extends in a circumferential direction of the electric control box body 31. An electric control wiring harness of the electric control box 3 is adapted to be routed in the wire routing groove 34. The wire routing groove 34 may facilitate the arrangement of the electric control wiring harness in the electric control box 3, make a position arrangement of the electric control wiring harness more reasonable, avoid a safety problem caused by a messy arrangement of the electric control wiring harness, and be beneficial to an improvement in the safety of the electric control box 3. Meanwhile, when the electric control wiring harness in the electric control box 3 is located in the wire routing groove 34, the wire routing groove 34 may play a role in receiving and protecting the electric control wiring harness in the wire routing groove 34.

According to some embodiments of the present disclosure, the electric control wiring harness includes a first electric control wiring harness and a second electric control wiring harness. The first electric control wiring harness and the second electric control wiring harness are routed separately, and power of an element 322 of the plurality of elements 322 connected to the first electric control wiring harness is greater than power of an element 322 of the plurality of elements 322 connected to the second electric control wiring harness. This arrangement may reduce the occurrence of electromagnetic interference between the first electric control wiring harness and the second electric control wiring harness, make information transmission of the first electric control wiring harness and the second electric control wiring harness stable and reliable, and be also beneficial to an improvement in the reliability and safety of the electric control box 3. The first electric control wiring harness may be for strong electricity, and the second electric control wiring harness may be for weak electricity.

For example, in some embodiments, two wiring outlets 3113 may be formed at the lower part of the electric control box 3 and may be spaced apart from each other in the front-rear direction. The first electric control wiring harness and the second electric control wiring harness in the electric control box 3 may be routed to two opposite sides of the electric control box 3 in the front-rear direction, respectively. After the first electric control wiring harness and the second electric control wiring harness are routed respectively through different wire routing grooves 34, the first electric control wiring harness and the second electric control wiring harness may be led out from the two wiring outlets 3113, respectively. In this way, the occurrence of the electromagnetic interference between the first electric control wiring harness and the second electric control wiring harness can be better reduced.

According to some embodiments of the present disclosure, referring to FIG. 10, all of the elements 322 are disposed on the first side of the electric control board 321, which can facilitate the assembly between the element 322 and the electric control board 321, and is beneficial to an improvement in the assembly efficiency of the element 322. Meanwhile, it is also beneficial to centralized heat dissipation of the element 322 as a whole. A wiring routing gap 341 is formed between an outer peripheral edge of the electric control board 321 and the inner peripheral wall of the electric control box body 31. The wire routing groove 34 is located on an outer peripheral side of the wiring routing gap 341, and the electric control wiring harness is adapted to be routed to the wire routing groove 34 through the wiring routing gap 341. The wiring routing gap 341 may provide a predetermined space for the electric control wiring harness and facilitate that the electric control wiring harness is led out from the outer peripheral edge of the electric control board 321, and thus facilitate that the electric control wiring harness is routed to the wire routing groove 34. Meanwhile, the wiring routing gap 341 may facilitate the arrangement of the electric control wiring harness in the electric control box 3, make routing layout of the electric control wiring harness more reasonable, and avoid the safety problem caused by the messy arrangement of the electric control wiring harness.

According to some embodiments of the present disclosure, referring to FIG. 9 to FIG. 13, the electric control box body 31 includes a box body 311 and a box cover 312 connected to the box body 311, and each of the box body 311 and the box cover 312 is an independent molded part, which can facilitate the overall assembly of the electric control box 3, while improving the overall strength and rigidity. The electric control component 32 is located in the box body 311, and the box body 311 may play a role in receiving and protecting the electric control component 32. The wire routing groove 34 is formed on an inner peripheral wall of the box body 311, and part of the electric control wiring harness in the electric control box 3 is located in the wire routing groove 34. The wire routing groove 34 may play a role in receiving and protecting the electric control wiring harness in the wire routing groove 34. Meanwhile, the arrangement of the electric control wiring harness in the electric control box 3 is facilitated, making the position arrangement of the electric control wiring harness more reasonable, avoiding the safety problem caused by the messy arrangement of the electric control wiring harness, and facilitating the improvement of the safety of the electric control box 3.

The wire routing groove 34 penetrates an end surface of the box body 311 facing the box cover 312. This arrangement may ensure that a space of the wire routing groove 34 is sufficient to receive the electric control wiring harness of the electric control component 32, facilitating the routing of the electric control wiring harness. Meanwhile, the overall structure may be made more compact, and the space utilization in the electric control box 3 can be improved.

According to some embodiments of the present disclosure, referring to FIG. 2, the electric control box assembly 30 is mounted on the first partition plate 113 in a drawable manner. The electric control box assembly 30 and the first partition plate 113 are assembled using a drawable structure, with a simple structure and convenient operation, which can facilitate the mounting and disassembly of the electric control box assembly 30, and improve the overall assembly efficiency. In addition, the electric control box assembly 30 is mounted on the first partition plate 113, which can make each of the distance between the electric control box assembly 30 and the fan chamber 11 and the distance between the electric control box assembly 30 and the compressor chamber 12 relatively short, facilitating the control of parts in the fan chamber 11 and the compressor chamber 12 by the electric control box assembly 30.

According to some embodiments of the present disclosure, the electric control box assembly 30 is mounted on the first partition plate 113 in a vertically drawable manner. On the one hand, the structure is simple, and the operation is convenient, which can facilitate the mounting and disassembly of the electric control box assembly 30 and improve the overall assembly efficiency. On the other hand, when the electric control box assembly 30 needs to be mounted on the first partition plate 113, a gravity of the electric control box assembly 30 can be used to assemble the electric control box assembly 30, which is beneficial to a reduction in assembly difficulty, an improvement in operation efficiency, and a reduction in costs.

According to some embodiments of the present disclosure, referring to FIG. 6, a guide portion 35 is provided on the electric control box 3, and the first partition plate 113 has a guide groove extending in the up-down direction. The guide portion 35 is adapted to slide in the up-down direction along the guide groove during the process of drawing the electric control box assembly 30. Therefore, it is possible to utilize mutual engagement between the guide groove and the guide portion 35 to provide a guide effect on the electric control box 3, facilitate up-down sliding of the electric control box assembly 30, enable the electric control box assembly 30 to be drawn better, and facilitate the maintenance and replacement of the electric control box assembly 30. Meanwhile, the mutual engagement between the guide groove and the guide portion 35 can provide a limiting effect on the electric control box 3, which facilitates the realization of rapid positioning of the electric control box 3, and is beneficial to the improvement of the overall assembly efficiency. For example, there may be two guide portions 35 that are located on a front side and a rear side of the electric control box 3, respectively. There may be two guide grooves that are located on a front side and a rear side of the first partition plate 113, respectively.

According to some embodiments of the present disclosure, the first partition plate 113 has a support structure for supporting the electric control box assembly 30, and a bottom surface of the electric control box assembly 30 is supported on the support structure. The electric control box assembly 30 may be mounted on the first partition plate 113 through the guide portion 35 along the guide groove of the first partition plate 113. When the bottom surface of the electric control box assembly 30 is in contact with the support structure of the first partition plate 113, the assembly of the electric control box assembly 30 with the first partition plate 113 is completed. The support structure may play a role in supporting and positioning the electric control box assembly 30.

For example, in a specific embodiment of the present disclosure, when the electric control box assembly 30 needs to be mounted, the electric control box assembly 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 electric control box assembly 30 is in contact with the support structure of the first partition plate 113, and then the first air guide hood 1131 is mounted on the first partition plate 113, completing the mounting of the electric control box assembly 30. When the electric control box assembly 30 needs to be disassembled, the first air guide hood 1131 may be disassembled from the first partition plate 113, and then the electric control box assembly 30 is moved upwards along the guide groove of the first partition plate 113 through the guide portion 35 until the electric control box assembly 30 is disengaged from the first partition plate 113, completing the disassembly of the electric control box assembly 30.

According to some embodiments of the present disclosure, referring to FIG. 2, the electric control box assembly 30 includes the first radiator 4. The first radiator 4 is disposed on the side of the electric control box 3 adjacent to the fan chamber 11, and is at least partially located in the fan chamber 11. For example, the first radiator 4 may be partially or completely located in the fan chamber 11. The first radiator 4 may provide the heat dissipation and cooling effect on the electric control component 32. The heat generated by the electric control component 32 during its operation is transferred to the electric control box 3, and then to the first radiator 4 through the electric control box 3. The first radiator 4 may dissipate the heat of the electric control box 3, providing the heat dissipation and cooling effect on the electric control component 32.

Since the outdoor fan 111 is provided in the fan chamber 11, the outdoor fan 111 may improve heat exchange between the outdoor heat exchanger 112 and the air by utilizing the flow of the air. The first radiator 4 is disposed on the side of the electric control box 3 adjacent to the fan chamber 11, and is at least partially located in the fan chamber 11. During the operation of the outdoor fan 111, the flow of the air in the fan chamber 11 may be utilized to quickly take away the heat of the first radiator 4, which improves the overall heat dissipation effect on the first radiator 4 and thus can improve the heat dissipation efficiency of the first radiator 4 for the electric control component 32.

The outdoor unit 100 includes a first air guide hood 1131 located on a top of the first radiator 4. The first air guide hood 1131 and the first radiator 4 together define a first air guide cavity 1132, or the first air guide hood 1131, the first radiator 4, and the first partition plate 113 together define the first air guide cavity 1132. The compressor chamber 12 is in communication with the first heat dissipation channel 42 through the first air guide cavity 1132.

The first air guide hood 1131 may provide the flow guide effect on the airflow at the top of the first radiator 4. When the outdoor fan 111 operates, the air pressure in the fan chamber 11 is made smaller than the air pressure in the compressor chamber 12. Since the compressor chamber 12 is connected to the first heat dissipation channel 42 through the first air guide cavity 1132, and the first heat dissipation channel 42 is connected to the fan chamber 11, the air in the compressor chamber 12 may 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 action of the air pressure difference between the fan chamber 11 and the compressor chamber 12. During the process of the airflow flowing through the first heat dissipation channel 42, the airflow may exchange heat with the adjacent first radiating fins 41. When the airflow flows out of the first heat dissipation channel 42, the heat of the first radiating fins 41 may be taken away, providing the heat dissipation effect on the first radiator 4 and thus improving the heat dissipation effect of the first radiator 4 on the electric control box 3.

The first air guide hood 1131 is detachably connected to the first partition plate 113. Since the first air guide hood 1131 is located on the top of the first radiator 4, when the electric control box assembly 30 is disassembled and mounted in the up-down direction, the first air guide hood 1131 is detachably connected to the first partition plate 113, which can facilitate the mounting and disassembly of the electric control box assembly 30 and the maintenance and replacement of the electric control box assembly 30. When the electric control box assembly 30 needs to be mounted, the electric control box assembly 30 is mounted on the first partition plate 113 in the up-down direction, and then the first air guide hood 1131 is mounted on the first partition plate 113 to complete the mounting of the electric control box assembly 30. When the electric control box assembly 30 needs to be disassembled, the first air guide hood 1131 is disassembled from the first partition plate 113, and then the electric control box assembly 30 is disassembled from the first partition plate 113 in the up-down direction to complete the disassembly of the electric control box assembly 30.

A heating and ventilation apparatus according to an embodiment of a second aspect of the present disclosure includes the outdoor unit 100 as described according to the above embodiment of the first aspect of the present disclosure. The heating and ventilation apparatus may be an air conditioning system, a heat pump system, or the like.

In the heating and ventilation apparatus according to the embodiment of the present disclosure, by providing the above outdoor unit 100, the electric control box assembly 30 is disposed on the first partition plate 113, and the first side of the electric control board 321 that is provided with at least part of the elements 322 faces the fan chamber 11, and the flow of the air in the fan chamber 11 may be utilized to take away the heat of the first side of the electric control board 321, which is beneficial to the improve the overall heat dissipation efficiency of the electric control component 32 and prolong the service life of the electric control component 32.

An outdoor unit 100 according to an embodiment of the present disclosure is described below with reference to FIG. 1 and FIG. 18.

Referring to FIG. 1 and FIG. 18, in this embodiment, the outdoor unit 100 of the heating and ventilation apparatus includes the casing 10, the outdoor heat exchanger 112, the outdoor fan 111, the compressor assembly 20, the waterway heat exchange assembly 40, and an electric control box assembly 30. The outdoor air inlet 101 and the outdoor air outlet 102 are formed on the casing 10, and the fan chamber 11, the compressor chamber 12, and the waterway cavity 13 are formed in the casing 10 and arranged sequentially from left to right. The fan chamber 11 and the compressor chamber 12 are spaced apart in the left-right direction by the first partition plate 113, and the compressor chamber 12 and the waterway cavity 13 are spaced apart by a second partition plate 121. The electric control box assembly 30 is disposed on the first partition plate 113.

The fan chamber 11 is internally provided with the outdoor heat exchanger 112 and the outdoor fan 111. The outdoor heat exchanger 112 is located at a left side and a rear side of the outdoor fan 111. The outdoor fan 111 is an axial flow fan, and is configured to drive outdoor air to enter the casing 10 from the outdoor air inlet 101 and exchange heat with the outdoor heat exchanger 112. The air after being subject to the heat exchange is discharged through the outdoor air outlet 102.

The first partition plate 113 is disposed between the fan chamber 11 and the compressor chamber 12. The electric control box assembly 30 is disposed on an upper side of the first partition plate 113 and includes the electric control box 3 and the first radiator 4. The electric control box 3 includes the electric control box body 31 and an electric control component 32 disposed in the electric control box body 31. The electric control box body 31 includes a box body 311 and a box cover 312 connected to the box body 311. The box cover 312 is disposed on a side of the electric control box 3 facing the compressor chamber 12. Each of the box body 311 and the box cover 312 is an independent molded part, and at least one of the box body 311 and the box cover 312 is made of aluminum or copper. The electric control component 32 includes an electric control board 321 and an element 322 disposed on the electric control board 321, and is disposed at the box body 311.

The electric control box body 31 is provided with the first radiator 4 and a second radiator 44. The first radiator 4 is disposed on the box body 311 and is integrally formed with the box body 311. The first radiator 4 is located in the fan chamber 11. A surface of the first radiator 4 facing the fan chamber 11 has an avoidance inclined surface 43 configured to avoid the outdoor fan 111. The avoidance inclined surface 43 extends obliquely away from the outdoor fan 111 in a direction from top to bottom. The first radiator 4 may include a plurality of first radiating fins 41 arranged at intervals in the front-rear direction. Each of the plurality of first radiating fins 41 extends in the up-down direction. A first heat dissipation channel 42 is defined between adjacent first radiating fins 41 and extends in the up-down direction. The second radiator 44 may be disposed on the box cover 312 and be integrally formed with the box cover 312. The second radiator 44 is located in the compressor chamber 12. The second radiator 44 may include a plurality of second radiating fins 441 arranged at intervals in the front-rear direction, and each of the plurality of second radiating fins 441 extends in the up-down direction. A second heat dissipation channel 442 is defined between adjacent second radiators 441 and extends in the up-down direction.

The first air guide hood 1131 is disposed on the first partition plate 113 and located on a top of the first radiator 4. The first air guide hood 1131 and the first radiator 4 together define a first air guide cavity 1132, or the first air guide hood 1131, the first radiator 4, and the first partition plate 113 together define the first air guide cavity 1132. The compressor chamber 12 is in communication with the first heat dissipation channel 42 through the first air guide cavity 1132. A side of the first air guide hood 1131 facing the compressor chamber 12 has a first air guide port 1138. The first air guide hood 1131 has a first surface 1131a facing the fan chamber 11. A distance between a part of the first surface 1131a adjacent to the first radiator 4 and a surface of the first radiator 4 facing the fan chamber 11 may range from 0 mm to 5 mm, and an upper end of the first radiator 4 is located in the first air guide hood 1131.

The second air guide hood 1134 is disposed on the first partition plate 113 and located at a bottom of the first radiator 4. The second air guide hood 1134 and the first radiator 4 together define a second air guide cavity 1135, or the second air guide hood 1134, the first radiator 4, and the first partition plate 113 together define the second air guide cavity 1135. 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 cavity 1135 is in communication with the compressor chamber 12 through the second air guide port 1139. The second air guide hood 1134 has a second surface 1134a facing the fan chamber 11. A distance between a part of the second surface 1134a adjacent to the first radiator 4 and a surface of the first radiator 4 facing the fan chamber 11 may range from 0 mm to 5 mm, and a lower end of the first radiator 4 is located in the second air guide hood 1134.

When the outdoor fan 111 operates, an air pressure in the fan chamber 11 is caused to be smaller than an air pressure in the compressor chamber 12. Under the action of an air pressure difference between the fan chamber 11 and the compressor chamber 12, the air in the compressor chamber 12 flows towards the fan chamber 11. The compressor chamber 12 is connected to an upper part of the first heat dissipation channel 42 through the first air guide cavity 1132 and to 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 connected to the fan chamber 11.

Therefore, a part of the air in the compressor chamber 12 may flow upwards along the second heat dissipation channel 442 of the second radiator 44 and flow into the first air guide cavity 1132 through the first air guide port 1138 above the electric control box 3. The air in the first air guide cavity 1132 may flow into the first heat dissipation channel 42. The airflow entering the first heat dissipation channel 42 from the first air guide cavity 1132 may flow downwards along the heat dissipation channels 42, and flow out of the first heat dissipation channel 42 and into the fan chamber 11 after flowing to a middle position of the first heat dissipation channel 42.

Another part of the air in the compressor chamber 12 may flow downwards along the second heat dissipation channel 442 of the second radiator 44, enter the second air guide cavity 1135 through the second air guide port 1139 below the electric control box 3, and then flow into the first heat dissipation channel 42 after flowing through the second air guide cavity 1135. The airflow entering the first heat dissipation channel 42 from the second air guide cavity 1135 may flow upwards along the first heat dissipation channel 42, and flow out of the first heat dissipation channel 42 and into the fan chamber 11 after flowing to the middle position of the first heat dissipation channel 42. During the process of the airflow flowing through the first heat dissipation channel 42 and the second heat dissipation channel 442, the airflow may perform heat exchange with the adjacent first radiating fins 41 and the adjacent second radiating fins 441. The airflow may take away the heat of the second radiating fins 441 when flowing out of the second heat dissipation channel 442, and may take away the heat of the first radiating fins 41 when flowing out of the first heat dissipation channel 42. In this way, the heat dissipation effect on the first radiator 4 and the second radiator 44 is realized, and the overall heat dissipation effect on the electric control box 3 is further improved.

In other embodiments of the present disclosure, a side of the second air guide hood 1134 facing the fan chamber 11 is connected to a side of the first air guide hood 1131 facing the fan chamber 11 in an up-down direction. The first radiator 4 is entirely located in the first air guide hood 1131 and the second air guide hood 1134, and the first air guide hood 1131 has a plurality of air outlets. Under the action of the air pressure difference between the fan chamber 11 and the compressor chamber 12, a part of the air in the compressor chamber 12 may sequentially flow through the first air guide cavity 1132 and the first heat dissipation channel 42 through the first air guide port 1138, and flow into the fan chamber 11 through a heat dissipation air outlet 1131b on the first air guide hood 1131. Another part of the air in the compressor chamber 12 may enter the second air guide cavity 1135 through the second air guide port 1139, and the airflow in the second air guide cavity 1135 flows upwards along the first heat dissipation channel 42, and finally flows into the fan chamber 11 through the heat dissipation air outlet 1131b on the first air guide hood 1131. During the process of the airflow flowing through the first heat dissipation channel 42, the airflow may perform heat exchange with the adjacent first radiating fins 41, and may take away the heat of the first radiating fins 41 when flowing out of the first heat dissipation channel 42, providing the heat dissipation effect on the first radiator 4 and further improving the heat dissipation effect of the first radiator 4 on the electric control box 3.

A flange 3111 is formed on an outer edge of the box body 311, and the box body 311 is connected to the box cover 312 through the flange 3111. A sealing member 317 is provided between the flange 3111 and the box cover 312. A wire routing groove 34 is formed on an inner peripheral wall of the box body 311, penetrates an end surface of the box body 311 facing the box cover 312, and extends in a circumferential direction of the electric control box body 31, allowing the electric control wiring harness of the electric control box 3 to be routed along the wire routing groove 34.

The electric control wiring harness includes a first electric control wiring harness and a second electric control wiring harness. Power of an element 322 of the plurality of elements 322 connected to the first electric control wiring harness is greater than power of an element 322 of the plurality of elements 322 connected to the second electric control wiring harness, and the first electric control wiring harness and the second electric control wiring harness are routed separately, which can avoid the occurrence of electromagnetic interference between the first electric control wiring harness and the second electric control wiring harness, ensuring the safety and reliability of the electric control box 3. A wiring routing gap 341 is formed between the outer peripheral edge of the electric control board 321 and the inner peripheral wall of the electric control box body 31. The wire routing groove 34 is located on an outer peripheral side of the wiring routing gap 341. The electric control wiring harness may be routed to the wire routing groove 34 through the wiring routing gap 341.

Two wiring outlets 3113 may be formed at the lower part of the electric control box 3 and may be spaced apart from each other in the front-rear direction. The first electric control wiring harness and the second electric control wiring harness in the electric control box 3 may be routed to two opposite sides of the electric control box 3 in the front-rear direction, respectively. After the first electric control wiring harness and the second electric control wiring harness are routed respectively through different wire routing grooves 34, the first electric control wiring harness and the second electric control wiring harness may be led out from the two wiring outlets 3113, respectively. In this way, the occurrence of the electromagnetic interference between the first electric control wiring harness and the second electric control wiring harness can be better reduced.

The electric control box assembly 30 is mounted on the first partition plate 113 in a vertically drawable manner. A guide portion 35 is provided on the electric control box 3, and the first partition plate 113 has a guide groove extending in the up-down direction. The guide portion 35 is adapted to slide in the up-down direction along the guide groove during the process of drawing the electric control box assembly 30. The first partition plate 113 has a support structure for supporting the electric control box assembly 30, and the bottom surface of the electric control box assembly 30 is supported on the support structure.

When the electric control box assembly 30 needs to be mounted, the electric control box assembly 30 may be moved downwards along the guide groove of the first partition plate 113 through the guide portion 35 until a bottom surface of the electric control box assembly 30 is in contact with the support structure of the first partition plate 113. Then the first air guide hood 1131 is mounted on the first partition plate 113, to complete the mounting of the electric control box assembly 30. When the electric control box assembly 30 needs to be disassembled, the first air guide hood 1131 is disassembled from the first partition plate 113. Then the electric control box assembly 30 is moved upwards along the guide groove of the first partition plate 113 through the guide portion 35 until the electric control box assembly 30 is disengaged from the first partition plate 113, to complete the disassembly of the electric control box assembly 30.

The electric control board 321 has the first side and the second side that are located at two opposite sides of the electric control board 321 in the thickness direction of the electric control board 321 respectively. A plurality of elements 322 are provided, and part of power devices of the electric control component 32 are located on the first side of the electric control board 321, and the first side of the electric control board 321 faces the fan chamber 11. The first radiator 4 is located on the first side of the electric control board 321, which can facilitate the heat dissipation for the element 322 by the first radiator 4 and improve the overall heat dissipation effect on the element 322.

The inner wall of the electric control box body 31 facing the first side of the electric control board 321 is formed into a profiling structure 313. The profiling structure 313 has a shape similar to a shape of the first side of the electric control component 32. The profiling structure 313 includes a convex beam 3131, a first groove 3132, and a second groove 3133. The convex beam 3131 is located at the middle part of the electric control box body 31, and the first groove 3132 and the second groove 3133 are located on two sides of the convex beam 3131 in the width direction of the convex beam 3131, respectively. The elements 322 corresponding to the first groove 3132 constitute a first element group, and a heat conduction layer is formed between the first element group and an inner wall of the first groove 3132. The heat conduction layer may be made of heat conduction glue or a heat conduction pad. The first element group includes a power device such as a capacitor and an inductor. The elements 322 corresponding to the convex beam 3131 constitute a second element group, and the second element group is in direct contact with the convex beam 3131 and includes a power device such as an insulated gate bipolar transistor, a diode, and a module of the outdoor fan 111. The elements 322 corresponding to the second groove 3133 constitute a third element group, with a safety gap between the third element group and an inner wall of the third groove, and the third element group includes a non-power device. This arrangement may improve the overall heat dissipation efficiency for the element 322 and the heat dissipation and cooling effect on the element 322.

A temperature adjustment assembly 33 is further provided at an inner wall of the box body 311 of the electric control box body 31, is located between the first radiator 4 and the electric control component 32, and is configured to adjust a temperature of the electric control component 32. The temperature adjustment assembly 33 includes a heat dissipation fan 331, a heat pipe 332, and an electric heating element 333.

The heat dissipation fan 331 may be provided at the inner wall of the box body 311 of the electric control box body 31 or on the first side of the electric control board 321, be adjacent to the power device in the electric control component 32, and may perform heat dissipation and cooling on the element 322. An angle between a rotation axis of the heat dissipation fan 331 and the electric control board 321 ranges from 0° to 5°, which can make the heat dissipation effect of the heat dissipation fan 331 on the element 322 better and make the overall cooling of the element 322 more uniform.

The heat pipe 332 penetrates the convex beam 3131 or is internally embedded in the convex beam 3131 and extends in the up-down direction. The heat pipe 332 has a hot end 3321 and a cold end 3322. The hot end 3321 of the heat pipe 332 is adjacent to part of the power devices, and the cold end 3322 of the heat pipe 332 is adjacent to a part of the electric control board 321 without the element 322. A heat exchange medium is provided inside the heat pipe 332, and the heat dissipation and cooling of the element 322 is realized through the heat exchange medium. The heat pipe 332 may extend in a serpentine or straight line in the up-down direction.

The electric heating element 333 extends in the circumferential direction of the electric control component 32 and may be disposed at the inner wall of the box body 311 through a plurality of first snaps 3331. The electric heating element 333 is connected to an external power supply and may perform auxiliary heating on the element 322.

In other embodiments of the present disclosure, the outdoor unit 100 further includes a pressing plate 36 connected to the electric control box 3. The pressing plate 36 and an outer wall of the electric control box 3 facing the compressor chamber 12 together define a receiving hole channel 361 for receiving a heat dissipation refrigerant pipe 362. The heat dissipation refrigerant pipe 362 is thermally connected to the electric control box 3 and may absorb heat from the electric control box 3, providing a heat dissipation and cooling effect of the heat dissipation refrigerant pipe 362 on the electric control box 3.

The compressor assembly 20 is disposed in the compressor chamber 12, and includes a compressor 21 and a liquid receiver connected to the compressor 21. A soundproof hood 25 is provided outside the compressor assembly 20 and connected to a base 16. The soundproof hood 25 and the base 16 of the casing 10 together define the soundproof cavity 254 for receiving the compressor assembly 20, and a vibration reduction pad is provided between the soundproof hood 25 and the base 16. The soundproof hood 25 includes a cover body 252 and a top cover 251. The top cover 251 covers a top of the cover body 252. A pipeline outlet 2513 is formed on the top cover 251, and a pipeline of the compressor assembly 20 is adapted to be led out from the pipeline outlet 2513. The top cover 251 includes a first cover body 2511 and a second cover body 2512 connected to the first cover body 2511 in the left-right direction, and the first cover body 2511 and the second cover body 2512 together define two pipeline outlets 2513 that may be elliptical in shape. Alternatively, the top cover 251 is an independent molded part. When the top cover 251 is the independent molded part, the pipeline outlet 2513 is U-shaped.

In some embodiments, the first partition plate 113 includes a first sub-partition plate 1136 and a second sub-partition plate 1137 located on a side of the first sub-partition plate 1136 adjacent to the compressor chamber 12. The second sub-partition plate 1137 includes a partition plate body 1137a and a partition plate flange 1137b connected to a front side and a rear side of the partition plate body 1137a. The second sub-partition plate 1137, the first sub-partition plate 1136, the second air guide hood 1134, and the first radiator 4 together define a second air guide cavity 1135, and a second air guide port 1139 is formed on the partition plate flange 1137b.

The partition plate body 1137a and the second partition plate 121 constitute a left part and a right part of the soundproof hood 25, respectively. The soundproof hood 25 includes the top cover 251, a first cover plate 2523, a second cover plate 2524, and a third cover plate 2525, and parts of the soundproof hood 25 are connected by a fastener. Each of the first cover plate 2523 and the second cover plate 2524 is flat. The first cover plate 2523 is connected to each of the first partition plate 113 and the second partition plate 121. The second cover plate 2524 is connected to each of the first partition plate 113 and the second partition plate 121. The first cover plate 2523 is disposed at a front side of the second cover plate 2524. The third cover plate 2525 is disposed between the top cover 251 and the first partition plate 113 and has an L-shaped cross-section. A front side and a rear side of the third cover plate 2525 are connected to the first cover plate 2523 and the second cover plate 2524, respectively. A top of the third cover plate 2525 is connected to the top cover 251, and a left side of the third cover plate 2525 is connected to the first partition plate 113.

A waterway heat exchange assembly 40 is provided in a waterway cavity 13, and includes a waterway heat exchanger 51, an electric heater 52, and a water pump 53. The waterway heat exchanger 51 has a water flow path and a refrigerant flow path that exchange heat with each other.

Throughout this specification, description with reference to “an embodiment”, “some embodiments”, “an illustrative embodiment”, “an example”, “a specific example”, “some examples”, or the like 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 of the present disclosure. Further, the particular features, structures, materials, or characteristics described here 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.