AIR CONDITIONER

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of International Application No. PCT/CN2025/090151, filed on Apr. 21, 2025, which claims priority to Chinese Patent Application No. 202410504257.4, filed on Apr. 24, 2024, Chinese Patent Application No. 202520583835.8, filed on Mar. 29, 2025, Chinese Patent Application No. 202520583457.3, filed on Mar. 29, 2025, Chinese Patent Application No. 202520583737.4, filed on Mar. 29, 2025, and Chinese Patent Application No. 202520583756.7, filed on Mar. 29, 2025. The entire disclosures of the above-identified applications are hereby incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to the technical field of air conditioning, and in particular to an air conditioner.

BACKGROUND

An air conditioner is a device that can be used for adjusting the temperature, humidity, air flow velocity, and air cleanliness of indoor air, which is widely applied to families, offices, commercial spaces, and industrial environments. The fundamental principle of the air conditioner is as follows: through circulation of a refrigerant, heat transfer is achieved by means of a physical process of heat absorption during evaporation and heat release during condensation, so that a cooling or heating effect is achieved. With the technical progress, in addition to refrigerating and heating functions, the air conditioner is further integrated with various functions such as dehumidification and air purification, which have become one of the indispensable electric appliances in modern life.

An air conditioner is usually composed of major components such as a compressor, an outdoor heat exchanger, an indoor heat exchanger, and a fan. The compressor is responsible for driving a refrigerant to circulate, the outdoor heat exchanger and the indoor heat exchanger serve as a condenser and an evaporator, respectively, for heat release and heat absorption, and the fan is configured to accelerate air flow to increase the heat exchange efficiency.

SUMMARY

There is provided an air conditioner for starting a target function according to embodiments of the present disclosure. The technical solution is as below:

Some embodiments of the present disclosure provide an air conditioner, including a housing configured as a shell of the air conditioner, the housing being internally provided with an accommodating space; an indoor heat exchanger disposed in the accommodating space and configured to exchange heat with indoor air; and an indoor fan assembly disposed in the accommodating space and arranged opposite to the indoor heat exchanger,

• • the indoor fan assembly including: an air duct shell member disposed in the housing; an indoor wind wheel rotatably disposed in the air duct shell member and arranged in a height direction of the air conditioner, a lower end of the indoor wind wheel being provided with a lower end cover; wherein the lower end cover further includes: a bottom plate disposed at the lower end of the indoor wind wheel, the bottom plate being provided with an opening; and a boss disposed at the opening of the bottom plate, the boss extending upward from the opening of the bottom plate, the mounting space being formed in the boss, and the mounting space being in communication with the opening, wherein a top wall of the boss is disposed above the opening, and the indoor electric machine stretches into the mounting space and is in transmission connection with the top wall of the boss, wherein a circumferential side wall of the boss is bent and extends upward at the opening of the bottom plate, and is connected between the bottom plate and the top wall of the boss;
  • an indoor electric machine disposed at a bottom of the air duct shell member, a top of the indoor electric machine being provided with an output shaft and a shaft hole, and the output shaft extending upward through the shaft hole and stretching into the air duct shell member to be in transmission connection with the lower end cover; and
  • a shielding member sleeved on the output shaft, the shielding member being arranged circumferentially around a periphery of the output shaft and shielding the shaft hole,
  • wherein a bottom surface of the lower end cover is provided with an upward sunken mounting space, and the shielding member is disposed in the mounting space.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a structural diagram of an air conditioner according to some embodiments of the present disclosure.

FIG. 2 is an internal structural diagram in FIG. 1.

FIG. 3 is a structural diagram of an indoor fan assembly in FIG. 1.

FIG. 4 is an exploded view of FIG. 3.

FIG. 5 is a sectional view of FIG. 3.

FIG. 6 is a partially enlarged view of A in FIG. 5.

FIG. 7 is a structural diagram of an indoor wind wheel in FIG. 4.

FIG. 8 is a structural diagram of an indoor electric machine in FIG. 4.

FIG. 9 is a sectional view of FIG. 8.

FIG. 10 is a bottom structural diagram of an air duct shell member in FIG. 4.

FIG. 11 is a three-dimensional structural diagram in FIG. 10.

FIG. 12 is a partially enlarged view of B in FIG. 5.

FIG. 13 is a structural diagram of a water collection tray in FIG. 4.

FIG. 14 is a structural diagram of the indoor fan assembly in FIG. 2.

FIG. 15 is a structural diagram of the air duct shell member in FIG. 14.

FIG. 16 is an exploded view of FIG. 15.

FIG. 17 is a back structural diagram in FIG. 15.

FIG. 18 is a partial sectional view of FIG. 17.

FIG. 19 is a partially enlarged view of C in FIG. 18.

FIG. 20 is an exploded view of FIG. 17.

FIG. 21 is an exploded view of FIG. 20 from another perspective.

FIG. 22 is a partial structural diagram in FIG. 14.

FIG. 23 is a partially enlarged view of D in FIG. 22.

FIG. 24 is a structural diagram of FIG. 22 from another perspective.

FIG. 25 is a partially enlarged view of E in FIG. 24.

FIG. 26 is an exploded view of FIG. 24.

FIG. 27 is a partially enlarged view of F in FIG. 22.

FIG. 28 is a structural diagram of a protective screen in FIG. 22.

FIG. 29 is an exploded view of FIG. 14 from another perspective.

FIG. 30 is a structural diagram of an outdoor heat exchanger and a first water collection tray in FIG. 2.

FIG. 31 is a structural diagram of a first end of the outdoor heat exchanger in FIG. 30.

FIG. 32 is a structural diagram of a second end of the outdoor heat exchanger in FIG. 30.

FIG. 33 is an exploded view of FIG. 31.

FIG. 34 is a partially enlarged view of G in FIG. 31.

FIG. 35 is an exploded view of FIG. 32.

FIG. 36 is a partially enlarged view of H in FIG. 32.

FIG. 37 is a structural diagram of a first end plate and a second end plate toward a first end according to some embodiments of the present disclosure.

FIG. 38 is a structural diagram of the first end plate in FIG. 37.

FIG. 39 is a three-dimensional structural diagram in FIG. 38.

FIG. 40 is a structural diagram of the second end plate in FIG. 37.

FIG. 41 is a three-dimensional structural diagram in FIG. 40.

FIG. 42 is an exploded view of FIG. 31.

FIG. 43 is a sectional view of FIG. 31.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Hereinafter, some embodiments of the present disclosure will be clearly and completely described with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, but not all embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by those ordinarily skilled in the art fall within the scope of protection of the present disclosure.

In the related air conditioner, the driving electric machine is mainly arranged above the cross-flow indoor wind wheel, which, however, will occupy the internal space of the air conditioner, resulting in a large volume of the air conditioner body. Therefore, the manufacturing cost increases, and the container loading quantity during transportation is also decreased. On the contrary, the driving electric machine is mounted at the bottom of the cross-flow air duct, which may reduce the occupation of the internal space. However, the driving electric machine is easily rusted due to the erosion of the condensate.

The air conditioner in the embodiments of the present disclosure may be a floor air conditioner. Improved technical solutions of the air conditioner in the embodiments of the present disclosure will be described in detail below, taking the floor air conditioner as an example.

As shown in FIG. 1, in some embodiments, the air conditioner may include a housing 1. The housing 1 may be configured as a shell outside the air conditioner. The housing 1 may be internally provided with an accommodating space 101. The housing 1 may be of a hollow structure such as a cuboid. It is to be noted that the housing 1 may form a shell outside the air conditioner. The housing 1 may be of a hollow structure in another shape.

As shown in FIG. 2, in some embodiments, the air conditioner may include a refrigerant circulation loop. The refrigerant circulation loop may include a compressor 21, an outdoor heat exchanger 22, and an indoor heat exchanger 23 connected end to end. A refrigerant flows circularly in the refrigerant circulation loop composed of the compressor 21, the outdoor heat exchanger 22, and the indoor heat exchanger 23. During circulation of the refrigerant, the outdoor heat exchanger 22 and the indoor heat exchanger 23 may serve as a condenser and an evaporator respectively, so that the refrigerant is evaporated in the evaporator to absorb heat and is condensed in the condenser to release heat, so that a refrigerating cycle or a heating cycle of the air conditioner may be executed.

Specifically, during the refrigerating cycle, the outdoor heat exchanger 22 may serve as the condenser, and the indoor heat exchanger 23 may serve as the evaporator. During heating circulation, the outdoor heat exchanger 22 may serve as the evaporator, and the indoor heat exchanger 23 may serve as the condenser.

It should be noted that the refrigerating cycle and the heating cycle each include a series of processes with compression, condensation, expansion, and evaporation involved, and supply the refrigerant to adjusted and heat-exchanged air.

The compressor 21 is configured to compress a refrigerant gas and discharge the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser.

The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the ambient environment through the condensing process.

The evaporator evaporates the expanded refrigerant and makes the refrigerant gas in a low-temperature and low-pressure state return to the compressor 21. The evaporator may perform heat exchange with the ambient environment by means of latent heat generated by the evaporation of the refrigerant to achieve a refrigerating effect.

During the whole circulation, the air conditioner may adjust the temperature of the indoor space to improve the comfort level of the indoor space and enhance the usage experience of the user.

As shown in FIG. 2, in some embodiments, the air conditioner may include an outdoor fan assembly 24. The outdoor fan assembly 24 may be arranged opposite to the outdoor heat exchanger 22. The outdoor fan assembly 24 may be configured to introduce outdoor air into the housing and exchange heat with the outdoor heat exchanger 22 to form a heat exchange air flow.

For example, during the refrigerating cycle, the outdoor heat exchanger 22 serves as the condenser, and the outdoor fan assembly 24 may extract external air and blow the external air to the outdoor heat exchanger 22 to dissipate the outdoor heat exchanger 22, so as to decrease the temperature of the outdoor heat exchanger 22. During the heating cycle, the outdoor heat exchanger 22 serves as the evaporator, and the outdoor fan assembly 24 may extract external air and blow the external air to the outdoor heat exchanger 22 to heat the outdoor heat exchanger 22, so as to increase the temperature of the outdoor heat exchanger 22.

As shown in FIG. 3, in some embodiments, the air conditioner may include an indoor fan assembly 4. The indoor fan assembly 4 may be arranged opposite to the indoor heat exchanger 23. The indoor fan assembly 4 may be configured to introduce indoor air into the housing and exchange heat with the indoor heat exchanger 23 to form a heat exchange air flow.

For example, during the refrigerating cycle, the indoor heat exchanger 23 serves as the evaporator, and the indoor fan assembly 4 may extract indoor air outside the housing and blow the indoor air to the indoor heat exchanger 23 to exchange heat with the indoor heat exchanger 23, so as to decrease the temperature of air flowing through the indoor heat exchanger 23, thereby decreasing the temperature of the indoor air.

For another example, during the heating cycle, the indoor heat exchanger 23 serves as the condenser, and the outdoor fan assembly 24 may extract indoor air outside the housing and blow the indoor air to the indoor heat exchanger 23 to exchange heat with the indoor heat exchanger 23, so as to increase the temperature of air flowing through the indoor heat exchanger 23, and blow the heated air back indoors to increase the temperature of the indoor air.

As shown in FIG. 2, in some embodiments, the compressor 21, the outdoor heat exchanger 22, the outdoor fan assembly 24, the indoor heat exchanger 23, and the indoor fan assembly 4 may be respectively disposed in the accommodating space inside the housing. Thus, the housing may play roles of covering and protecting them and prevent structural damage due to erosion of external foreign objects or impact of an external force, so as to improve the structural reliability of the air conditioner, thereby guaranteeing normal work of the air conditioner.

As shown in FIG. 2, in some embodiments, the accommodating space 101 inside the housing 1 may include three layers of sub-spaces. The three layers of sub-spaces are respectively a first sub-space 110, a second sub-space 120, and a third sub-space 130 arranged in sequence from bottom to top. The compressor 21 may be disposed in the first sub-space 110. The outdoor heat exchanger 22 and the outdoor fan assembly 24 may be disposed in the second sub-space 120. The indoor heat exchanger 23 and the indoor fan assembly 3 may be disposed in the third sub-space 130. Thus, through the three layers of sub-spaces in sequence from bottom to top, the devices such as the compressor 21, the outdoor heat exchanger 22, the outdoor fan assembly 24, the indoor heat exchanger 23, and the indoor fan assembly 3 may be arranged in a scattered manner at different height positions inside the housing 1, which is beneficial to improving the overall height of the air conditioner, reducing the width and thickness dimensions of the air conditioner, and reducing the space of the use site occupied by the air conditioner.

As shown in FIG. 1 and FIG. 2, in some embodiments, the air conditioner may include a housing 1. The housing 1 includes a main shell 11 and a chassis 12. The chassis 12 is disposed at a bottom of the main shell 11. The main shell 11 and the chassis 12 form the internal accommodating space 101. The air conditioner may include a refrigerant circulation loop, and the refrigerant circulation loop is disposed in the accommodating space 101 and includes a compressor 21, a condenser, and an evaporator connected end to end. One of the condenser and evaporator is the outdoor heat exchanger 22, and the other one is the indoor heat exchanger 23. The air conditioner may include an outdoor fan assembly 24, and the outdoor fan assembly 24 is disposed on one side of the outdoor heat exchanger 22 to drive the outdoor air to flow through the outdoor heat exchanger 22 to exchange heat. The air conditioner may include an indoor fan assembly 4, and the indoor fan assembly 4 is disposed on one side of the indoor heat exchanger 23 to drive the indoor air to flow through the indoor heat exchanger 23 to exchange heat. The air conditioner may include a second water collection tray 5, and the outdoor heat exchanger 22 is disposed above the second water collection tray 5. The air conditioner may include a first water collection tray 6, and the indoor heat exchanger 23 is disposed above the first water collection tray 6. The first water collection tray 6 may be disposed above the outdoor heat exchanger 22. The air conditioner may include an air inlet pipe 14, and the air inlet pipe 14 is configured to supply the outdoor air to the outdoor heat exchanger 22 to exchange heat. The air conditioner may include an air outlet pipe 15, and the air outlet pipe 15 is configured to supply the heat exchange air to the outside under the action of the outdoor fan assembly 3. The air inlet pipe 14 and the air outlet pipe 15 are disposed above the outdoor heat exchanger 22 and are spaced apart from the indoor fan assembly 4 in the horizontal direction. The compressor 21 is disposed at the bottom of the housing 1, and the first water collection tray 6 is disposed above the compressor 21.

As shown in FIG. 3, in some embodiments, the indoor fan assembly 3 may include an air duct shell member 31. The air duct shell member 31 may be disposed in the housing. The air duct shell member 31 may be provided with an air outlet 301 to deliver air entering the air conditioner and exchanging heat with the indoor air to the inside through the air outlet 301 of the indoor air duct assembly.

As shown in FIG. 3, in some embodiments, the indoor fan assembly 3 may include an indoor wind wheel 32. The indoor wind wheel 32 is rotatably disposed in the air duct shell member 31. When the indoor wind wheel 32 rotates, the air conditioner may extract air from the inside, and the air flows through the indoor heat exchanger 23 to exchange heat therewith, and then is delivered to the outside through the air outlet 301 of the air duct shell member 31. As shown in FIG. 3, in some embodiments, the indoor wind wheel 32 may be configured as a cross-flow wind wheel.

As shown in FIG. 4, in some embodiments, the indoor wind wheel 32 may be arranged along a height direction of the air conditioner. An upper end of the indoor wind wheel 32 may be rotationally connected to an upper end of the air duct shell member 31. A lower end of the indoor wind wheel 32 may be rotationally connected to a lower end of the air duct shell member 31.

As shown in FIG. 4, in some embodiments, an indoor heat exchange system may include an indoor electric machine 33. The indoor electric machine 33 may be configured to drive the indoor wind wheel 32 to rotate.

As shown in FIG. 4, in some embodiments, the lower end of the indoor wind wheel 32 is provided with a lower end cover 321. The lower end cover 321 may be provided with a rotary connecting hole. The indoor electric machine 33 may be connected to the lower end cover 321 of the indoor wind wheel 32 through the rotary connecting hole to drive the indoor wind wheel 32 to rotate.

As shown in FIG. 5, in some embodiments, the indoor electric machine 33 may be disposed at the bottom of the air duct shell member 31. A top of the indoor electric machine 33 may be provided with an output shaft 331 and a shaft hole 332. The output shaft 331 may extend upward through the shaft hole 332. The output shaft 331 may stretch into the air duct shell member 31 to be in transmission connection with the lower end cover 321.

As shown in FIG. 6, in some embodiments, the indoor fan assembly 3 may include a shielding member 34. The shielding member 34 may be sleeved on the output shaft 331. The shielding member 34 may be arranged circumferentially around the periphery of the output shaft 331. The shielding member 34 may shield the shaft hole 332.

Since the indoor electric machine 33 is disposed at the bottom of the indoor wind wheel 32, the condensate may flow downward to the electric machine disposed below along the indoor wind wheel 32 or the output shaft 331, and enters the indoor electric machine 33 through the shaft hole 332, which makes the indoor electric machine 33 be affected with damp or rusted to affect work of the indoor electric machine 33. By sleeving the shielding member 34 on the output shaft 331 of the indoor electric machine 33, the shielding member 34 extends in the circumferential direction of the output shaft 331 to shield the condensate above, so as to prevent the condensate from directly flowing into the shaft hole 332 below along the output shaft 331.

As shown in FIG. 7, in some embodiments, a bottom surface of the lower end cover 321 may be provided with an upward sunken mounting space 3210. The shielding member 34 may be disposed in the mounting space 3210. By forming an upward groove in the lower end cover 321, the shielding member 34 is mounted in the mounting space 3210, so that the space of the indoor wind wheel 32 in a vertical direction may be effectively utilized.

In the related air conditioner, the driving electric machine is mainly arranged above the cross-flow indoor wind wheel 32, which, however, will increase the mounting space 3210 of the indoor wind wheel 32 in the vertical direction, resulting in a large volume of the air conditioner body. Therefore, the manufacturing cost increases, and the container loading quantity during transportation is also decreased. However, the driving electric machine is mounted at the bottom of the cross-flow air duct, which may reduce the occupation of the internal space. However, during indoor refrigeration of the air conditioner, moisture in air is easily condensed in the air duct shell member 31 to form the condensate water. The condensate may drop along the flowing direction of the air. Particularly when the electric machine is mounted at the bottom of the air duct, the condensate is easily accumulated and seeps into the electric machine, resulting in a problem that the driving electric machine is rusted.

In the air conditioner of the present disclosure, through the mounting space 3210 concave upward at the lower end cover 321 of the indoor wind wheel 32, the shielding member 34 may be disposed in the mounting space 3210. Thus, it is not needed to additionally reserve a space for mounting a waterproof component at the indoor wind wheel 32. In the vertical direction of the air conditioner, the mounting position of the shielding member 34 overlaps with the mounting space 3210 at the lower end of the indoor wind wheel 32, so that the occupation of an internal space of the air conditioner is reduced, and the mounting structure of the air conditioner is more compact. In addition, the shielding member 34 is sleeved on the output shaft 331 and extends toward the circumferential direction of the output shaft 331. A physical barrier may be formed above the shaft hole 332 to shield the shaft hole 332 below to prevent a condensate from directly entering a driving electric machine through the shaft hole 332, so as to prevent a risk that the driving electric machine is affected by damp, rusted, or short-circuited, thereby playing a good waterproof role.

As shown in FIG. 7, in some embodiments, the lower end cover 321 may include a bottom plate 3211. The bottom plate 3211 may be disposed at the lower end of the indoor wind wheel 32. The bottom plate 3211 may be provided with an avoidance opening 3213. The avoidance opening 3213 may communicate with the mounting space 3210. The output shaft 331 of the electric machine may stretch into the mounting space 3210 through the avoidance opening 3213, and the output shaft 331 of the electric machine may be in transmission connection with the bottom plate 3211.

As shown in FIG. 7, in some embodiments, the lower end cover 321 may include a boss 3212. The boss 3212 may be disposed at the avoidance opening 3213 of the bottom plate 3211. The boss 3212 may extend upward from the avoidance opening 3213 of the bottom plate 3211. The mounting space 3210 may be formed in the boss 3212. A top wall 32121 of the boss 3212 may be disposed above the avoidance opening 3213. The indoor electric machine 33 may stretch into the mounting space 3210 and may be in transmission connection with the top wall 32121 of the boss 3212. Specifically, the boss 3212 extends upward from the avoidance opening 3213 of the bottom plate 3211 to form the mounting space 3210, so that part of the indoor electric machine 33 and the shielding member 34 can be partially embedded into the boss 3212 rather than completely occupying the bottom space of the air duct, which, thus, may reduce occupation of the internal space of the air conditioner, so that the structure is more compact. Moreover, since the mounting space 3210 is enclosed by the boss 3212, even if the condensate flows along the bottom of the indoor fan, it is more easily blocked by the side wall of the boss 3212 or guided to other drainage paths, thereby reducing the risk that the condensate directly enters the indoor electric machine 33 downward.

As shown in FIG. 6 and FIG. 7, in some embodiments, a circumferential side wall 32122 of the boss 3212 may be bent upward and extend upward from the avoidance opening 3213 of the bottom plate 3211. The circumferential side wall 32122 of the boss 3212 may be connected between the bottom plate 3211 and the top wall 32121 of the boss 3212. In a direction from top to bottom, the circumferential side wall 32122 of the boss 3212 may be disposed obliquely away from an axis of the output shaft 331. The circumferential side wall 32122 of the boss 3212 is continuous. The circumferential side wall 32122 of the boss 3212 is free from through-holes. The circumferential side wall 32122 of the boss 3212 is without any perforations.

The top wall 32121 of the boss 3212 is disposed above the circumferential side wall 32122 of the boss 3212, and the lower side of the circumferential side wall 32122 of the boss 3212 is connected to the avoidance opening 3213 of the bottom plate 3211. Since the circumferential side wall 32122 of the boss 3212 is disposed obliquely away from the axis of the output shaft 331 in the direction from top to bottom, i.e., the lower end of the circumferential side wall 32122 is disposed away from the output shaft 331, even if the condensate water or water vapor is condensed on the surface of the boss 3212, the condensate may also flow to a position away from the output shaft 331 in an inclination direction of the circumferential side wall 32122 of the boss 3212, so as to reduce the risk that the condensate enters the shaft hole 332 of the indoor electric machine 33. Meanwhile, the inclined arrangement of the circumferential side wall 32122 of the boss 3212 facilitates discharge of the condensate water to prevent accumulated water from being gathered around the electric machine, so that the waterproof effect is further improved.

In some other embodiments, the circumferential wall 32122 of the boss 3212 may be disposed vertically downward. Specifically, the circumferential side wall 32122 of the boss 3212 may be cylindrical.

As shown in FIG. 6 and FIG. 7, in some embodiments, the boss 3212 and the bottom plate 3211 may be integrally formed. Thus, compared with the way of independently splicing the boss 3212 and the bottom plate 3211 or adding a support member, the integrally formed structure improves the structural rigidity of the lower end plate and reduces the deformation caused by high-speed rotation or external vibration of the indoor fan, which is beneficial for long-term stable operation of the electric machine and the fan.

As shown in FIG. 6, in some embodiments, a shaft surface of the output shaft 331 may be provided with a groove in a concave manner (not shown in the figure). The shielding member 34 may be embedded into the groove. Thus, the groove makes the shielding member 34 more compactly mounted to the output shaft 331 to prevent displacement or looseness due to high-speed operation or vibration of the indoor wind wheel 32. Moreover, by forming the groove, the shielding member 34 can be more compactly combined with the output shaft 331, so that a mounting gap therebetween is reduced, and the condensate is prevented from seeping into the indoor electric machine 33 along the output shaft 331.

As shown in FIG. 6, in some embodiments, the shielding member 34 may be made of materials such as a silica gel and rubber. Thus, the connecting tightness between the shielding member 34 and the output shaft 331 may be improved, so that the probability that the condensate flows downward into the indoor electric machine 33 from the gap between the output shaft 331 and the shielding member 34 is further reduced.

As shown in FIG. 8 and FIG. 9, in some embodiments, the shielding member 34 may include a shielding cover 341. The shielding cover 341 may be sleeved on the output shaft 331. The shielding cover 341 may be annular. The shielding cover 341 may be arranged circumferentially around the periphery of the output shaft 331. The shielding cover 341 may be positioned above the shaft hole 332.

The shielding cover 341 is sleeved on the output shaft 331 and is annular, i.e., the shielding cover 341 completely surrounds the output shaft 331 to further circumferentially enclose the outer side of the output shaft 331 to form a direct barrier above the shaft hole 332, so as to prevent the condensate or water vapor from directly entering the shaft hole 332. On the other hand, the shielding cover 341 disposed circumferentially around the output shaft 331 may avoid the problem of extra vibration or eccentricity of the indoor electric machine 33 due to unbalanced stress during high-speed rotation of the fan.

As shown in FIG. 6 and FIG. 9, in some embodiments, the shielding member 34 may include a flow guide portion 342. The flow guide portion 342 may be annular. The flow guide portion 342 may be arranged circumferentially around the periphery of the shielding cover 341. The flow guide portion 342 may extend downward along a circumferential edge of the shielding cover 341.

Specifically, the flow guide portion 342 surrounds the periphery of the shielding cover 341 and extends downward along the circumferential edge of the shielding cover 341 to form a downward extending annular structure. Thus, even if the condensate flows along the shielding cover 341, it will not drop into the shaft hole 332 directly but is guided to the periphery by the flow guide portion 342, thereby further reducing the risk that the condensate water enters the electric machine. Moreover, the downward extending flow guide portion 342 may also prevent water drops from being accumulated at the edge of the shielding cover 341 to reduce water stagnation, thereby improving the waterproof performance.

As shown in FIG. 9, in some embodiments, the connection between the flow guide portion 342 and the shielding cover 341 may be an arc transition connection. This is beneficial for the condensate to flow to the position away from the shaft hole 332 along the shielding cover 341 and the flow guide portion 342 in sequence, thereby preventing the condensate from being accumulated on the shielding cover 341 or the flow guide portion 342.

As shown in FIG. 9, in some embodiments, a top surface of the flow guide portion 342 may be provided with a flow guide surface 3421. In the direction from top to bottom, the flow guide surface 3421 may be disposed obliquely away from the axis of the output shaft 331. The obliquely disposed flow guide surface 3421 may guide the condensate water to flow toward one side away from the output shaft 331 to prevent the condensate from flowing to the middle shaft hole 332, so as to reduce the risk that the condensate directly seeps into the indoor electric machine 33 along the output shaft 331, thereby further effectively reducing stagnation of the condensate around the shielding member 34 or the indoor electric machine 33 and reducing the risk of water accumulation. Moreover, the obliquely disposed flow guide surface 3421 may further accelerate discharge of the condensate water by means of the action of gravity. Compared with a horizontal or vertical design, the obliquely disposed flow guide surface 3421 is further beneficial to discharging the condensate quickly, thereby reducing the accumulation of water drops.

As shown in FIG. 9, in some embodiments, the flow guide portion 342 may be integrally cone-shaped.

In some other embodiments, the flow guide portion 342 may be disposed vertically downward integrally. The flow guide portion 342 may be cylindrical.

As shown in FIG. 4 and FIG. 5, in some embodiments, the air duct shell member 31 may be provided with a mounting opening 305. The mounting opening 305 may be configured to mount an electric machine. The mounting opening 305 may be formed in the bottom of the air duct shell member 31. During mounting, the output shaft 331 of the indoor electric machine 33 may stretch into the mounting space 3210 through the mounting opening 305.

As shown in FIG. 6 and FIG. 9, in some embodiments, the indoor fan assembly 3 may include a sealing sleeve 35. The sealing sleeve 35 may be sleeved at the top of the indoor electric machine 33. The sealing sleeve 35 may be sleeved on the outer side of the output shaft 331. The sealing sleeve 35 may be abutted between the bottom wall of the air duct shell member 31 and the top of the indoor electric machine 33 to seal the gap between the mounting opening 305 and the indoor electric machine 33.

By sleeving the sealing sleeve 35 at the top of the indoor electric machine 33, when the indoor electric machine 33 and the air duct shell member 31 are mounted, the sealing sleeve 35 may be abutted between the air duct shell member 31 and the indoor electric machine 33. Thus, the sealing sleeve 35 may seal the gap between the mounting opening 305 of the air duct shell member 31 and the indoor electric machine 33. Even if the condensate is accumulated at the bottom of the air duct shell member 31, the sealing sleeve 35 may also effectively prevent the condensate from directly seeping into the indoor electric machine 33 below through the gap, so that the overall waterproof performance is improved.

As shown in FIG. 9, in some embodiments, the sealing sleeve 35 may be made of an elastic material. The sealing sleeve may be made of a sealing material such as a silica gel, rubber, or foam. Thus, a better sealing effect may be provided. The vibration of the fan during operation may also be absorbed, so that the resonance phenomenon is reduced, and the noise is reduced.

As shown in FIG. 6 and FIG. 9, in some embodiments, one side of the sealing sleeve 35 toward the shielding member 34 may be provided in a protruding manner with a first enclosure portion 351. The first enclosure portion 351 may be disposed around the circumferential side of the output shaft 331. The shielding member 34 may cover the first enclosure portion 351.

Specifically, the first enclosure portion 351 is disposed in a protruding manner around the circumferential side of the output shaft 331, so that an extra barrier is formed around the output shaft 331, and the condensate water is harder to seep into the surrounding region of the output shaft 331, so that the risk that the condensate enters the electric machine is further reduced. Moreover, since the shielding member 34 covers the first enclosure portion 351, the shielding member 34 may prevent the condensate above from directly flowing to the shaft hole 332 downward. Matched with the design of the first enclosure portion 351, the condensate on the circumferential side may be further prevented from flowing to the shaft hole 332. The shielding member 34 and the first enclosure portion 351 form a double waterproof structure for the shaft hole 332, so that the risk that the condensate seeps into the indoor electric machine 33 is reduced.

As shown in FIG. 9, in some embodiments, the first enclosure portion 351 and the sealing sleeve 35 may be integrally formed.

As shown in FIG. 6, in some embodiments, a second enclosure portion 311 may be disposed on a bottom wall of the air duct shell member 31. The second enclosure portion 311 may be disposed around the circumferential side of the mounting opening 305. The second enclosure portion 311 may be disposed downward in a protruding manner relative to the bottom wall of the air duct shell member 31. By disposing the second enclosure portion 311 downward in a protruding manner on the bottom wall of the air duct shell member 31, the second enclosure portion 311 surrounds the second enclosure portion 311. Thus, a downward extending barrier may be formed at a circumferential edge of the mounting opening 305, so that the probability that the condensate water enters the air duct shell member 31 is further reduced.

As shown in FIG. 6 and FIG. 9, in some embodiments, a sealing portion 352 may be disposed at the top of the sealing sleeve 35. A lower end of the sealing portion 352 may be mounted on an inner side of the second enclosure portion 311 to seal a gap between the second enclosure portion 311 and the mounting opening 305.

Thus, the sealing portion 352 is mounted on the inner side of the second enclosure portion 311 to further fill and close the gap between the enclosure portion and the mounting opening 305, so as to enhance the sealing effect, which may effectively prevent the condensate from seeping into the indoor electric machine 33, thereby improving the waterproof capacity of the integral air conditioner.

As shown in FIG. 8 and FIG. 9, in some embodiments, a sealing portion 352 may be in an annular step shape. The annular step-shaped sealing portion 352 is disposed circumferentially around the top of the sealing portion 352, so that each position at the circumferential edge of the mounting opening 305 may be in abutting sealing connection with the sealing portion 352.

As shown in FIG. 6 and FIG. 9, in some embodiments, the sealing portion 352 may include a first step portion 3521. The first step portion 3521 may extend into the air duct shell member 31 through the mounting opening 305. A circumferential outer surface of the first step portion 3521 may abut against a circumferential inner surface of the mounting opening 305. Thus, the gap between the mounting opening 305 and the upper end of the sealing sleeve may be further sealed to effectively prevent the condensate in the air duct shell member 31 from seeping downward into the indoor electric machine through the mounting opening 305.

As shown in FIG. 6 and FIG. 9, in some embodiments, the sealing portion 352 may include a second step portion 3522. The second step portion 3522 may be disposed below the first step portion 3521. A diameter of the second step portion 3522 may be greater than a diameter of the first step portion 3521. The second step portion 3522 may be embedded onto an inner surface of the second enclosure portion 311. Thus, the gap between the bottom of the air duct shell member 31 and the lower end of the sealing sleeve may be further sealed, and cooperated with the abutting sealing effect between the first step portion 3521 and the mounting opening 305, the sealing portion 352 is disposed to more effectively prevent the condensate in the air duct shell member 31 from seeping downward into the indoor electric machine through the mounting opening 305.

As shown in FIG. 6, in some embodiments, a third enclosure portion 313 may be disposed on the bottom wall of the air duct shell member 31. The third enclosure portion 313 may be disposed around the circumferential side of the mounting opening 305. The third enclosure portion 313 may be disposed upward in a protruding manner relative to the bottom wall of the air duct shell member 31. An upper end of the sealing portion 352 may be mounted on an inner side of the third enclosure portion 313 to seal a gap between the third enclosure portion 313 and the mounting opening 305.

Since the air duct shell member 31 is in a low-temperature environment inside during operation of the air conditioner or after refrigerating work of the air conditioner, water molecules in the air are easily condensed to form condensate water, and the water molecules may seep into the indoor electric machine 33 below along the edge of the mounting opening 305. The first step portion 3521 may be embedded onto the inner side of the third enclosure portion 313. By disposing the third enclosure portion 313 in a protruding manner on the air duct shell member 31, the first enclosure portion 351 is disposed on the outer side of the shaft hole 332, and the third enclosure portion 313 is disposed on the outer side of the first enclosure portion 351 to form a multilayered waterproof structure, which may effectively prevent the condensate from entering the mounting opening 305. Thus, a good waterproof effect may be exerted on the indoor electric machine 33.

As shown in FIG. 10, FIG. 11, and FIG. 12, in some embodiments, an enclosure panel 312 may be disposed on the bottom wall of the air duct shell member 31. The enclosure panel 312 may be disposed downward in a protruding manner from the bottom wall of the air duct shell member 31. The enclosure panel 312 may be disposed around the circumferential side of the indoor electric machine.

Specifically, the enclosure panel 312 is disposed on the outer side of the second enclosure portion 311. The enclosure panel 312 protrudes downward and is disposed around the circumferential side of the indoor electric machine to form a physical barrier, so as to prevent the condensate water from flowing to the indoor electric machine along the bottom wall of the air duct shell member 31, thereby effectively reducing the risk that water flows into the indoor electric machine. Moreover, the sealing sleeve 35 is disposed at the upper end of the indoor electric machine, the first enclosure portion 351 is disposed at the upper end of the sealing sleeve 35, and the second enclosure portion 311 is disposed protruding downward on the bottom wall of the air duct shell member 31 in a fit manner to form the multilayered waterproof structure to prevent the condensate from eroding the indoor electric machine 33 from all direction such as the upper end of the indoor electric machine 33 and the circumferential side of the indoor electric machine 33, so that the indoor electric machine 33 may be in a dried environment, and the integral waterproof performance is further improved.

In addition, the enclosure panel 312 is disposed around the indoor electric machine 33 to play certain supporting and stabilizing roles, so as to reduce the displacement or looseness of the indoor electric machine 33 due to vibration during work, enhance the fixing effect, and improve the reliability of the indoor fan assembly 3.

As shown in FIG. 12, in some embodiments, the enclosure panel 312 may be disposed in a protruding manner around a part of the circumferential side of the indoor electric machine. Thus, it may not only play waterproof and protective roles, but also facilitate heat dissipation of the indoor electric machine 33.

As shown in FIG. 3 and FIG. 4, in some embodiments, the indoor fan assembly 3 may further include a first water collection tray 6. The first water collection tray 6 may be disposed below the air duct shell member 31. The indoor heat exchanger 23 may be mounted on the first water collection tray 6 and disposed adjacent to the air duct shell member 31.

When the indoor heat exchanger 23 exchanges heat with indoor air to deliver cold air to the indoor environment, water molecules in the air are easily condensed on the surface of the indoor heat exchanger 23 to form condensate. The first water collection tray 6 may be configured to collect the condensate water, so as to prevent the condensate water from directly dropping to other electrical apparatus elements in the air conditioner to cause the safety problem.

As shown in FIG. 12 and FIG. 13, in some embodiments, a mounting ring 601 may be disposed upward in a protruding manner on a bottom wall of the first water collection tray 6. The indoor electric machine 33 may be mounted to the mounting ring 601. The mounting ring 601 may provide the indoor electric machine 33 with a fixed position in the first water collection tray 6, the protruding mounting ring 601 may prevent the condensate at the bottom of the first water collection tray 6 from directly contacting the indoor electric machine 33.

As shown in FIG. 12 and FIG. 13, in some embodiments, an isolating ring 602 may be disposed upward in a protruding manner on the bottom wall of the first water collection tray 6. The isolating ring 602 may be disposed in a spaced manner on the circumferential outer side of the mounting ring 601. The enclosure plate 312 may be disposed above the isolating ring 602 and located on an outer side of the isolating ring 602. Thus, the isolating ring 602 may form a waterproof barrier at the bottom of the first water collection tray 6 to prevent the condensate at the bottom of the first water collection tray 6 from directly flowing to the mounting position of the indoor electric machine 33. Moreover, the enclosure plate 312 is disposed above the isolating ring 602 and located on an outer side of the isolating ring 602 in a fit manner, so that the condensate on the enclosure plate 312 may drop to the outer side of the isolating ring 602, rather than directly dropping to the mounting position of the indoor electric machine 33.

Thus, the indoor electric machine 33 is mounted below the indoor wind wheel 32 to further prevent the condensate from directly contacting the indoor electric machine 33, which not only improves the mounting compactness inside the air conditioner, but also improves the waterproof performance of the integral indoor electric machine 33, thereby achieving the working stability and safety of the indoor fan assembly 3.

The air conditioner in the embodiment of the disclosure may be further used to solve the connecting problem between a volute tongue of the air duct and a volute casing of the air duct and the mounting problem of an air duct protective screen.

In order to solve the above problem, as shown in FIG. 1, some embodiments of the present disclosure provide an air conditioner, which may include a housing 1. The housing 1 may be configured as a shell outside the air conditioner.

As shown in FIG. 2, in some embodiments, the air conditioner may include a refrigerant circulation loop. The refrigerant circulation loop may include a compressor 21, an outdoor heat exchanger 22, and an indoor heat exchanger 23 connected end to end. A refrigerant flows circularly in the refrigerant circulation loop composed of the compressor 21, the outdoor heat exchanger 22, and the indoor heat exchanger 23. During circulation of the refrigerant, the outdoor heat exchanger 22 and the indoor heat exchanger 23 may serve as a condenser and an evaporator respectively, so that the refrigerant is evaporated in the evaporator to absorb heat and is condensed in the condenser to release heat, so that a refrigerating cycle or a heating cycle of the air conditioner may be executed.

As shown in FIG. 2, in some embodiments, the air conditioner may include an outdoor fan assembly 24. The outdoor fan assembly 24 may be arranged opposite to the outdoor heat exchanger 22. The outdoor fan assembly 24 may be configured to introduce outdoor air into the housing 1 and exchange heat with the outdoor heat exchanger 22 to form a heat exchange air flow.

As shown in FIG. 2, in some embodiments, the air conditioner may include an indoor fan assembly 3. The indoor fan assembly 3 may be arranged opposite to the indoor heat exchanger 23. The indoor fan assembly 3 may be configured to introduce indoor air into the housing 1 and exchange heat with the indoor heat exchanger 23 to form a heat exchange air flow.

As shown in FIG. 14, in some embodiments, the indoor fan assembly 3 may include an air duct shell member 31. The air duct shell member 31 may be disposed in the housing 1. The air duct shell member 31 may be provided with an air outlet 301 to deliver air entering the air conditioner and exchanging heat with the indoor air to the inside through the air outlet 301 of the indoor fan assembly 3.

As shown in FIG. 14, in some embodiments, the air duct shell member 31 may be provided with an indoor air duct 3015. The indoor air duct 3015 may communicate with the air outlet 301. The indoor fan assembly 3 may include an indoor wind wheel 32. The indoor wind wheel 32 may be configured as a cross-flow wind wheel. The indoor wind wheel 32 is rotatably disposed in the air duct shell member 31. The indoor wind wheel 32 may form an air flow in the indoor air duct 3015. Specifically, when the indoor wind wheel 32 rotates, the air conditioner may extract air from the inside, and the air flows through the indoor heat exchanger 23 to exchange heat therewith, and then is delivered to the outside through the air outlet 301 of the air duct shell member 31.

As shown in FIG. 14, in some embodiments, the air duct shell member 31 may include a volute casing 314. The volute casing 314 may be disposed in the housing 1. The volute casing 314 may be internally provided with an indoor air duct 3015. The volute casing 314 may be provided with the air outlet 301. The volute casing 314 may be disposed in the housing 1 in a height direction of the air conditioner. The volute casing 314 forms a main outer shell of the air duct shell member 31, and moreover, the indoor wind wheel 32 may be mounted in the volute casing 314.

As shown in FIG. 14, in some embodiments, the air duct shell member 31 may include a volute tongue 315. The volute tongue 315 may be disposed in the volute casing 314. The volute tongue 315 may be arranged on a side close to the air outlet 301. The volute tongue 315 may be located on a transverse side of the air outlet 301. The volute tongue 315 and the volute casing 314 jointly define the indoor air duct 3015, and the volute tongue 315 may be configured to guide the air flow in the indoor air duct 3015 to flow out smoothly, so as to decrease the wind resistance and improve the air speed and the air discharge efficiency.

As shown in FIG. 17 and FIG. 18, in some embodiments, the volute tongue 315 may include a windward wall 3152. The windward wall 3152 may be disposed toward the indoor air duct 3015. The windward wall 3152 may be disposed on a side of the volute tongue 315 close to the indoor wind wheel 32. The windward wall 3152 may guide the air flow in the indoor air duct 3015 to flow out stably along the windward wall 3152.

As shown in FIG. 15, FIG. 16, and FIG. 18, in some embodiments, the volute tongue 315 may include a first flow guide wall 3153. The first flow guide wall 3153 may be disposed toward the air outlet 301. One side of the first flow guide wall 3153 may be connected to a side of the windward wall 3152 close to the air outlet 301. Specifically, the first flow guide wall 3153 is disposed on the side of the windward wall 3152 close to the air outlet 301, i.e., the first flow guide wall 3153 is disposed on the front side of the windward wall 3152. A connection between the first flow guide wall 3153 and the side of the windward wall 3152 close to the air outlet 301 may be a circular arc transition. The first flow guide wall 3153 may be configured to guide the air flow to smoothly enter the air outlet 301, so as to improve the air delivery efficiency.

As shown in FIG. 15, FIG. 16, and FIG. 18, in some embodiments, the volute casing 314 may include a second flow guide wall 3141. The second flow guide wall 3141 may be disposed on one side of the air outlet 301. The second flow guide wall 3141 may be connected to a side of the first flow guide wall 3153 away from the windward wall 3152. The second flow guide wall 3141 of the volute casing 314 is disposed on the outer side of the first flow guide wall 3153, and the first flow guide wall 3153 is connected between the windward wall 3152 and the second flow guide wall 3141. The air flow in the indoor air duct 3015 may then flow to the air outlet 301 through the windward wall 3152, the first flow guide wall 3153, and the second flow guide wall 3141 in sequence.

As shown in FIG. 16, FIG. 18, and FIG. 19, in some embodiments, a stepped groove 302 may be formed in a side of the first flow guide wall 3153 toward the second flow guide wall 3141. The first flow guide wall 3153 may be provided with a baffle rib 3159. The baffle rib 3159 may be disposed on a side of the stepped groove 302 close to the air outlet 301. A limiting rib 3143 may be disposed on a side of the second flow guide wall 3141 close to the first flow guide wall 3153. The limiting rib 3143 may be snap-fitted in the stepped groove 302. The baffle rib 3159 may be snap-fitted to one side of the limiting rib 3143 close to the air outlet 301, and the baffle rib 3159 may cover at least part of a region on a side of a gap 303 between the limiting rib 3143 and the first flow guide wall 3153 close to the air outlet 301, so that the baffle rib 3159 can shield the side of the gap 303 between the limiting rib 3143 and the first flow guide wall 3153 close to the air outlet 301.

As shown in FIG. 19, it is to be noted that the limiting rib 3143 is snap-fitted in the stepped groove 302, and there will also be a certain gap 303 between the limiting rib 3143 and the wall surface of the stepped groove 302.

Specifically, as shown in FIG. 19, the stepped groove 302 is formed in the side of the first flow guide wall 3153 toward the second flow guide wall 3141, and the stepped groove 302 provides an accommodating space at a connection for mounting the second flow guide wall 3141 on the first flow guide wall 3153. The limiting rib 3143 may be disposed on a side of the second flow guide wall 3141 close to the first flow guide wall 3153, and the limiting rib 3143 may be snap-fitted in the stepped groove 302, so that the second flow guide wall 3141 is snap-fitted to the first flow guide wall 3153, and the volute tongue 315 is connected to a part of the volute casing 314 on a side close to the air outlet 301. Further, by disposing the baffle rib 3159 on a side of the first flow guide wall 3153 close to the air outlet 301, the baffle rib 3159 may be disposed in a protruding manner toward the stepped groove 302 to shield the side of the gap 303 between the limiting rib 3143 and the first flow guide wall 3153 close to the air outlet 301. The baffle rib 3159 can not only further limit the limiting rib 3143 in the stepped groove 302 to improve the stability of the snap-fitting structure between the second flow guide wall 3141 and the first flow guide wall 3153, but also can directly shield the gap 303 between the limiting rib 3143 and the first flow guide wall 3153 to prevent the air flow in the indoor air duct 3015 from directly flowing to the air outlet 301 through the gap 303 between the limiting rib 3143 and the first flow guide wall 3153, so as to effectively reduce the risk of leakage of the air flow.

At present, since the small gap 303 will be generated due to a processing error or an assembly tolerance in the connection between the volute tongue 315 and the volute casing 314 or the connecting structure between the original volute tongue 315 and the volute casing 314 is unreasonable, resulting in a gap at the connection between the volute tongue 315 and the volute casing 314, so that the air flow in the indoor air duct 3015 is easily leaked through the connection between the volute tongue 315 and the volute casing 314, which results in a problem of condensation on the volute tongue 315 or influence on gas flowing efficiency.

As shown in FIG. 19, in this technical solution, the stepped groove 302 is formed in the connection of the volute tongue 315 close to the air outlet 301, the limiting rib 3143 is disposed on the second flow guide wall 3141 of the volute casing 314, and the limiting rib 3143 is snap-fitted in the stepped groove 302, so that the volute tongue 315 closely fits the connection of the volute casing 314 on the side close to the air outlet 301, thereby reducing the size of the gap 303 at the connection between the volute tongue 315 and the volute casing 314. Moreover, by disposing the baffle rib 3159 on the side of the first flow guide wall 3153 toward the air outlet 301, the baffle rib 3159 is located in the stepped groove 302 to shield the side of the gap 303 between the limiting rib 3143 and the first flow guide wall 3153 close to the air outlet 301. The volute tongue 315 can be closely snap-fitted to the volute casing 314, and further can shield the gap 303 between the limiting rib 3143 and the first flow guide wall 3153 to prevent air leakage at the connection between the volute tongue 315 and the volute casing 314, thereby improving the sealing performance of the air duct shell member 31 formed by the volute tongue 315 and the volute casing 314 in a fit manner.

In some other embodiments, the baffle rib 3159 may be disposed in a protruding manner relative to the groove wall of the stepped groove 302, and the baffle rib 3159 is disposed, so that the fitting surface between the stepped groove 302 and the limiting rib 3143 is an uneven surface. Correspondingly, the limiting rib 3143 is configured with the surface adapted to the surface of the stepped groove 302, so that the gap 303 formed at the fit position of the volute tongue 315 and the volute casing 314 is further reduced by increasing the contact surface between the limiting rib 3143 and the stepped groove 302.

As shown in FIG. 19, in some embodiments, a limiting groove 304 may be formed in a side of the limiting rib 3143 close to the air outlet 301. The limiting rib 3159 may be abutted in the limiting groove 304. By forming the limiting groove 304 in the side of the limiting rib 3143 toward the air outlet 301 and abutting the baffle rib 3159 in the limiting groove 304, the baffle rib 3159 and the limiting groove 304 are formed in a fit manner, so that the first flow guide wall 3153 and the second flow guide wall 3141 can contact closely when they match each other. The convex rib can be embedded into the limiting groove 304 to form the snap-fitting structure, and the convex rib and the limiting groove contact closely to further reduce the gap between the first flow guide wall 3153 and the second flow guide wall 3141. Moreover, the limiting groove 304 and the baffle rib 3159 match each other to increase the contact area of the sealing surface between the limiting rib 3143 and the second flow guide wall 3141. Compared with the abutting surface between the limiting groove 304 and the limiting rib 3143 being merely a plane, the structure in which the limiting groove 304 is formed in the side of the limiting rib 3143 toward the air outlet 301 may provide more contact points for the fit position of the baffle rib 3159 and the limiting rib 3143 to improve the shielding effect of the gap 303, which effectively reduces the risk of leakage at the connection between the volute tongue 315 and the volute casing 314, thereby improving the sealing reliability after the volute tongue 315 and the volute casing 314 are assembled.

As shown in FIG. 18 and FIG. 19, in some embodiments, the volute tongue 315 may include a limiting wall 3154. The limiting wall 3154 may be disposed on a side of the first flow guide wall 3153 close to the windward wall 3152. The stepped groove 302 may be formed between the side of the limiting wall 3154 close to the air outlet 301 and the end of the end wall of the first flow guide wall 3153 disposed toward the air outlet 301. The second flow guide wall 3141 may abut against the side of the limiting wall 3154 toward the air outlet 301. Specifically, the limiting wall 3154 is disposed on the side of the first flow guide wall 3153 toward the air outlet 301, a side wall of the stepped groove 302 may be formed on the side of the limiting wall 3154 toward the air outlet 301, one side of the second flow guide wall 3141 abuts against the limiting wall 3154, and the limiting rib 3143 abuts against the first flow guide wall 3153, i.e., the stepped groove 302 is formed between the side of the limiting wall 3154 close to the air outlet 301 and the end of the end wall of the first flow guide wall 3153 disposed toward the air outlet 301.

The limiting wall 3154 is disposed on the side of the first flow guide wall 3153 away from the windward wall 3152, and the limiting wall 3154 is configured to define the stepped groove 302 with the first flow guide wall 3153, so that the abutting contact area between the second flow guide wall 3141 and the volute tongue 315 may be increased. When the limiting rib 3143 is inserted into the stepped groove 302, the second flow guide wall 3141 also abuts against the limiting wall 3154, so that the contact area between the second flow guide wall 3141 and the first flow guide wall 3153 is increased, and the shielding effect for the gap 303 at the connection between the volute tongue 315 and the volute casing 314 is improved.

As shown in FIG. 19, in some embodiments, the stepped groove 302 may be an L-shaped groove. Thus, two surfaces of the second flow guide wall 3141 abutting against the stepped groove 302 are disposed in a cross manner, i.e., the two surfaces of the second flow guide wall 3141 abutting against the stepped groove 302 are not located in the same plane, so that the air flow hardly flows directly to the air outlet 301 through the abutting position of the two from the air flow in the indoor air duct 3015.

As shown in FIG. 15 and FIG. 16, in some embodiments, the second flow guide wall 3141 may be disposed along a height direction of the air conditioner. A first notch 3051 may be disposed on a side of an upper end of the second flow guide wall 3141 close to the first flow guide wall 3153. A second notch 3052 may be disposed on a side of a lower end of the second flow guide wall 3141 close to the first flow guide wall 3153. A part of the second flow guide wall 3141 located between the first notch 3051 and the second notch 3052 may form an elastic connecting portion 3144. The limiting rib 3143 may be disposed at an end of the elastic connecting portion 3144 close to the first flow guide wall 3153. Specifically, the volute casing 314 is disposed in the air conditioner along the height direction of the air conditioner, the volute tongue 315 is disposed in the volute casing 314 along the height direction of the air conditioner, and correspondingly, the second flow guide wall 3141 is disposed on the side of the first flow guide wall 3153 close to the air outlet 301 along the height direction of the air conditioner. The first notch 3051 and the second notch 3052 are respectively formed in the upper end and the lower end of the second flow guide wall 3141, so that neither the upper end nor the lower end of the second flow guide wall 3141 is connected to the volute casing 314. The part of the second flow guide wall 3141 located between the first notch 3051 and the second notch 3052 forms the elastic connecting portion 3144, where since the part of the second flow guide wall 3141 located between the first notch 3051 and the second notch 3052 may serve as a suspended end, so that the second flow guide wall 3141 has certain deformability. In the process that the second flow guide wall 3141 is snap-fitted to the first flow guide wall 3153, the second flow guide wall 3141 may generate certain elastic deformation, so that the limiting rib 3143 may be more smoothly snap-fitted in the stepped groove 302.

On the other hand, since there exists slight errors in size in the production process of the volute casing 314 and the volute tongue 315, the rigid structure is difficulty adapted to these errors, which may result in an assembly difficulty or an insecure connection, so that air leakage occurs as the gap 303 between the first flow guide wall 3153 and the second flow guide wall 3141 is increased. In this embodiment, by forming the elastic connecting portion 3144 between the first notch 3051 and the second notch 3052, the second flow guide wall 3141 has certain deformability to fit different assembly tolerances, thereby improving the assembly convenience.

As shown in FIG. 16, in some embodiments, the second flow guide wall 3141 may be provided with a third notch 3053. The third notch 3053 may be located between the first notch 3051 and the second notch 3052 to divide the elastic connecting portion 3144 into two elastic connecting units 31441.

By additionally forming the third notch 3053 in the second flow guide wall 3141, the third notch 3053 divides the elastic connecting portion 3144 into two independent connecting units 31441, so that each connecting unit 31441 has certain deformability. Thus, the two independent connecting units 31441 can be finely adjusted, respectively. In the process that the second flow guide wall 3141 is snap-fitted to the first flow guide wall 3153, the two independent connecting units 31441 may be subjected to deformation adjustment, respectively, to improve the assembly success rate, and meanwhile, to reduce plastic deformation or material damage due to excessive deformation. Moreover, the problem that the second flow guide wall 3141 away from the upper end the lower end has stress concentration in the snap-fitting process may also be avoided.

As shown in FIG. 16, in some embodiments, the second flow guide wall 3141 may also be provided with a fourth notch (not shown in the figure), so that the elastic connecting portion 3144 is divided into three elastic connecting units 31441. The quantity of the notches may be adjusted according to an actual product requirement, which is not defined herein.

It is to be noted that the first notch 3051, the second notch 3052, the third notch 3053, and the fourth notch are all within the shielding range of the limiting wall. That is, the limiting wall 3154 extends to the sides of the first notch 3051, the second notch 3052, the third notch 3053, and the fourth notch away from the air outlet, which, thus, may prevent leakage of the air flow in the indoor air duct through the notches.

As shown in FIG. 20 and FIG. 21, in some embodiments, the volute casing 314 may be disposed along the height direction of the air conditioner. The volute casing 314 may be disposed in the volute casing 314 along the height direction of the air conditioner. A first mounting portion 3155 may be formed at the upper end of the volute tongue 315. A first sliding groove 3061 may be formed in a concave manner at the upper end of the volute casing 314. The first sliding groove 3061 may be provided with a first opening end 3063. The first opening end 3063 may be formed toward the outer side of the volute casing 314. The first mounting portion 3155 can be inserted into the first sliding groove 3061 through the first opening end 3063.

By forming the first sliding groove 3061 in a concave manner at the upper end of the volute casing 314, correspondingly, the first mounting portion 3155 formed at the upper end of the volute tongue 315 can be embedded into the first sliding groove 3061. When the first mounting portion 3155 is inserted in position, the volute tongue 315 may closely fit the upper end of the volute casing 314 at the upper end of the volute casing 314. The upper end of the volute tongue 315 and the upper end of the volute casing 314 may form a close connecting structure to reduce the gap 303 existing between the upper end connections of the volute tongue 315 and the volute casing 314, thereby preventing leakage of the air flow in the indoor air duct 3015 passing through the connections of the upper ends of the two. On the other hand, the volute tongue 315 and the volute casing 314 are inserted and mounted by the sliding groove. An operator only needs to align the first opening end 3063 to slide the first mounting portion 3155 of the volute tongue 315 in, so as to achieve mounting, so that the mounting efficiency may be improved.

As shown in FIG. 20 and FIG. 21, in some embodiments, the first mounting portion 3155 may be provided with a first snap fastener 3156 toward the first sliding groove 3061. The first sliding groove 3061 may be provided with a first snap-fitting hole 3071. When the first mounting portion 3155 and the first sliding groove 3061 are mounted in position, the first snap fastener 3156 may be snap-fitted in the first snap-fitting hole 3071. After the volute tongue 315 and the volute casing 314 are assembled into the air duct shell member 31, under the action of the cross-flow fan, the air flow in the indoor air duct 3015 will also generate an effect of a force on the volute tongue 315 and the volute casing 314 in the flowing process, which easily affects the stability of the assembly structure between the volute tongue 315 and the volute casing 314. By disposing the first snap fastener 3156 on the first mounting portion 3155 toward the first sliding groove 3061, the first sliding groove 3061 is provided with the first snap-fitting hole 3071. After the first mounting portion 3155 slides into the first sliding groove 3061, the first snap fastener 3156 is automatically snap-fitted to the first snap-fitting hole 3071 to fix the upper end of the volute tongue 315 and the upper end of the volute casing 314, so as to provide an extra mechanical locking force after the volute tongue 315 slides into the first sliding groove 3061, so that the volute tongue 315 is stable without shaking.

As shown in FIG. 20 and FIG. 21, in some embodiments, a second mounting portion 3157 may be formed at the lower end of the volute tongue 315. A second sliding groove 3062 may be formed in a concave manner at the lower end of the volute casing 314. The second sliding groove 3062 may be provided with a second opening end 3064. The second opening end 3064 may be formed toward the outer side of the volute casing 314. The second mounting portion 3157 can be inserted into the second sliding groove 3062 through the second opening end 3064.

By forming the second sliding groove 3062 in a concave manner at the lower end of the volute casing 314, correspondingly, the second mounting portion 3157 formed at the lower end of the volute tongue 315 can be embedded into the second sliding groove 3062. When the second mounting portion 3157 is inserted in position, the volute tongue 315 may closely fit the lower end of the volute casing 314 at the lower end of the volute casing 314. The lower end of the volute tongue 315 and the lower end of the volute casing 314 may form a close connecting structure to reduce the gap 303 existing between the lower end connections of the volute tongue 315 and the volute casing 314, thereby preventing leakage of the air flow in the indoor air duct 3015 passing through the connections of the upper ends of the two. On the other hand, the volute tongue 315 and the volute casing 314 are inserted and mounted by the sliding groove. An operator only needs to align the second opening end 3064 to slide the second mounting portion 3157 of the volute tongue 315 in, so as to achieve mounting, so that the mounting efficiency may be improved.

As shown in FIG. 20 and FIG. 21, in some embodiments, the first sliding groove 3061 and the second sliding groove 3062 may be disposed oppositely at the upper end and the lower end of the volute casing 314. Thus, during assembly, the upper end of the volute tongue 315 and the lower end of the volute tongue 315 are directly aligned with the first opening end 3063 and the second opening end 3064, respectively, to directly push the volute tongue 315 into the volute casing 314, and then the limiting rib 3143 is snap-fitted in the step groove 302, so that the volute tongue 315 can be mounted on the volute casing 314.

As shown in FIG. 20 and FIG. 21, in some embodiments, the second mounting portion 3157 may be provided with a second snap fastener 3158 toward the second sliding groove 3062. The second sliding groove 3062 may be provided with a second snap-fitting hole 3072. When the second mounting portion 3157 and the second sliding groove 3062 are mounted in position, the second snap fastener 3158 may be snap-fitted in the second snap-fitting hole 3072.

After the volute tongue 315 and the volute casing 314 are assembled into the air duct shell member 31, under the action of the cross-flow fan, the air flow in the indoor air duct 3015 will also generate an effect of a force on the volute tongue 315 and the volute casing 314 in the flowing process. By disposing the second snap fastener 3158 on the second mounting portion 3157 toward the second sliding groove 3062, the second sliding groove 3062 is provided with the second snap-fitting hole 3072. After the second mounting portion 3157 slides into the second sliding groove 3062, the second snap fastener 3158 is automatically snap-fitted to the second snap-fitting hole 3072 to fix the upper end of the volute tongue 315 and the upper end of the volute casing 314, so as to provide an extra mechanical locking force after the volute tongue 315 slides into the second sliding groove 3062, so that the volute tongue 315 is stable without shaking.

As shown in FIG. 14 and FIG. 22, in some embodiments, the indoor fan assembly 3 may include a protective screen 37. The protective screen 37 may cover the air outlet 301. The protective screen 37 covers the air outlet 301, which may effectively prevent a user from touching it by mistake or a hand from stretching into the indoor air duct shell member 31 of the air conditioner to contact the indoor wind wheel 32, thereby improving the use safety of the user.

As shown in FIG. 22 and FIG. 23, in some embodiments, the air duct shell member 31 may be provided with a slot 3011 in a side close to the air outlet 301. An insertion portion 371 disposed opposite to the slot 3011 may be disposed on a side of the protective screen 37. The insertion portion 371 of the protective screen 37 can be inserted into the slot 3011, so that one side of the protective screen 37 can be fixed on one side of the air outlet 301.

The side of the air duct shell member 31 close to the air outlet 301 may be the side of the air outlet 301 along the height direction of the air conditioner. The slot 3011 is formed in a side wall of a side of the air outlet 301 along the height direction of the air conditioner. The insertion portion 371 is disposed on a side of the protective screen 37 close to the slot 3011, and the insertion portion 371 is inserted into the slot, so that the protective screen 37 and the air duct shell member 31 may be fixed through an insertion structure, and one side of the protective screen 37 is limited on the air duct shell member 31.

As shown in FIG. 24 and FIG. 25, in some embodiments, the air duct shell member 31 may be provided with an abutting slot 3012 in the other side close to the air outlet 301. An abutting portion 372 disposed opposite to the abutting slot 3012 may be disposed on the other side of the protective screen 37. The abutting portion 372 of the protective screen 37 can abut against the abutting slot 3012. Thus, two opposite sides of the protective screen 37 may be fixed on two opposite sides of the air outlet 301.

The side of the air duct shell member 31 close to the air outlet 301 may be the other side of the air outlet 301 along the height direction of the air conditioner. The slot 3011 and the abutting slot 3012 may be respectively formed in two opposite sides of the air outlet 301. The abutting slot 3012 is formed in a side wall of the side of the air outlet 301 along the height direction of the air conditioner. The abutting portion 372 is disposed on the side of the protective screen 37 close to the abutting slot 3012, and the abutting portion 372 is inserted into the abutting slot 3012, so that the protective screen 37 and the air duct shell member 31 may be fixed through an abutting structure, and the other side of the protective screen 37 is limited on the air duct shell member 31.

At present, the protective screen 37 is often fixed with screws and is easy to be rusted to affect the appearance for a long time, and it is inconvenient for the user to remove, clean, and mount. In addition, it is also mounted through a detachable snap-fitting structure, but the structure of the protective screen 37 is usually not stable enough and is easy to loosen and fall off.

In the air conditioner in the embodiment of the present disclosure, the slot 3011 is formed in the side of the air duct shell member 31 close to the air outlet 301, the insertion portion 371 disposed opposite to the slot 3011 is disposed on the side of the protective screen 37 corresponding thereto, the abutting slot 3012 is formed in the other side of the air duct shell member 31 close to the air outlet 301, the abutting portion 372 disposed opposite to the abutting slot 3012 is disposed on the side of the protective screen 37 corresponding thereto, one side of the protective screen 37 may be inserted into the air duct shell member 31, and the other side of the protective screen 37 may be abutted against in the air duct shell member 31. Thus, in the process that the user mounts the protective screen 37, the insertion portion 371 may be aligned with the slot 3011 first to further insert the insertion portion 371 into the slot 3011, and then the abutting portion 372 on the other side of the protective screen 37 is aligned with the abutting slot 3012, and the abutting portion 372 is pushed into the abutting slot 3012, so that the mounting and detaching difficulties are simplified. Moreover, the side of the protective screen 37 abutting against the air duct shell member 31 may provide the protective screen 37 with a certain supporting force, so that the protective screen 37 under impact can better resist deformation and damage.

Thus, the two opposite sides of the protective screen 37 are respectively connected to the air duct shell member 31 by double fixing modes of abutting and snap-fitting, so that the stress of the protective screen 37 under the action of an external force may be effectively dispersed. When the air flow in the air duct may generate a certain impact force to the protective screen 37 when the air conditioner operates, the protective screen 37 may also be subjected to a certain impact force when the air conditioner is moved or in other usage scenarios. Through cooperation of abutting and snap-fitting, such an impact force may be effectively dispersed to the air duct shell member 31, so that the risk that the protective screen 37 is damaged is reduced, and the stability and anti-impact performance of the protective screen 37 are improved. Moreover, compared with the prior art, the problem that use and perception of the user are affected as the screw structure used is easy to be rusted may be solved, and the protective screen may further have good impact resistance.

As shown in FIG. 24 and FIG. 25, in some embodiments, the volute tongue 315 may be provided with the abutting slot 3012 in the side toward the protective screen 37. The abutting portion 372 may be disposed on the side of the protective screen 37 toward the first flow guide wall 3153. The abutting portion 372 may be abutted against in an aligned manner in the abutting slot 3012, so that one side of the protective screen 37 is fixed on the volute tongue 315.

By forming the abutting slot 3012 in the outer side wall of one side of the volute tongue 315 toward the protective screen 37, the protective screen 37 not only can be fixed on the air outlet 301 through the cooperation of the insertion portion 371 and the slot 3011, and the other side of the protective screen 37 can also abut against the first flow guide wall 3153 of the volute tongue 315, so as to provide extra support for the protective screen 37 by means of the volute tongue 315. Thus, one side of the protective screen 37 is inserted onto the volute casing 314 to form an inserted and fixed limiting structure with the volute casing 314, and the other side of the protective screen 37 abuts against the volute tongue 315 to form an abutted and fixed limiting structure with the volute tongue 315, so that the protective screen 37, the volute casing 314, and the volute tongue 315 form a close connecting fixed structure. Therefore, the protective screen 37 has good impact resistance after being mounted, and the stability of the structure between the volute casing 314 and the volute tongue 315 is further improved.

As shown in FIG. FIG. 24, and FIG. 25, in some embodiments, an abutting rib 3151 may be disposed on the outer side wall of the volute tongue 315. The abutting rib 3151 may be provided with the abutting slot 3012. The abutting rib 3151 is disposed on the outer side wall of the volute tongue 315, so that the abutting portion 372 of the protective screen 37 can be more precisely mounted in an aligned manner. Due to the protruding abutting rib 3151, leakage of the air flow may be avoided since the outer side wall of the wall surface is sunken to form the abutting slot 3012, so as to form the gap 303, so that the air discharge efficiency is improved.

As shown in FIG. 26, in some embodiments, an air supply end of the air duct shell member 31 may be provided with the air outlet 301. The protective screen 37 may be disposed at the air outlet 301. Further, the air duct shell member 31 may further be provided with an air supply outlet 3016. The air supply outlet 3016 is located on the side of the air outlet 301 away from the indoor air duct 3015. That is, the air supply outlet is located on the outer side of the air outlet 301, and an air deflector 38 is disposed on the side of the protective screen 37 away from the indoor air duct 3015.

As shown in FIG. 1 and FIG. 2, in some embodiments, the air conditioner may include the air deflector 38. The air deflector 38 may be disposed at the air supply outlet 3016. The air deflector 38 is rotatably disposed on the air duct shell member 31. The air deflector 38 rotates to guide the air flow to be blown into the inside at different angles.

As shown in FIG. 2 and FIG. 14, in some embodiments, the indoor fan assembly 3 may include a support frame 4. The air deflector 38 is rotatably disposed on the support frame 4. Upper and lower ends of the air deflector 38 may be rotatably connected to the air duct shell member 31, respectively, where the support frame 4 may provide a rotation pivot for mounting the air deflector 38. The arrangement of the support frame 4 may further improve the stability of the air deflector 38 in the rotating process, so that the air conditioner may blow air stably.

As shown in FIG. 16 and FIG. 26, in some embodiments, the support frame 4 may be disposed at the air outlet 301. One end of the support frame 4 may be connected to the second flow guide wall 3141. The first flow guide wall 3153 may be provided with an avoidance slot 308. An opening of the avoidance slot 308 may be formed toward the air outlet 301. An end of the support frame 4 toward the first flow guide wall 3153 can be embedded into the avoidance slot 308.

By forming the avoidance slot 308 of the first flow guide wall 3153 toward the air outlet 301, the support frame 4 can be embedded into the avoidance slot, and the support frame 4 may be prevented from protruding from the surface of the first flow guide wall 3153, so that a fitting structure between the support frame 4 and the volute tongue 315 is more compact, and interference to the air flow may be reduced. The air may flow out smoothly along the first flow guide wall 3153 and the second flow guide wall 3141, so that the air flow efficiency is improved.

As shown in FIG. 16, FIG. 22, and FIG. 27, in some embodiments, the support frame 4 may be disposed on the side of the protective screen 37 away from the indoor air duct 3015. A snap hook 41 may be disposed on the side of the support frame 4 close to the protective screen 37. The snap hook 41 can stretch into the protective screen 37 and can be snap-fitted to the protective screen 37 to apply a force away from the indoor air duct 3015 to the protective screen 37, so that the protective screen 37 deforms toward the side away from the indoor air duct 3015.

Specifically, the support frame 4 is disposed at the air outlet 301 and located on the side of the protective screen 37 away from the indoor air duct 3015 to provide a front supporting point to the protective screen 37. The snap hook 41 is disposed on the side of the support frame 4 close to the protective screen 37 and can stretch into the protective screen 37 and can be snap-fitted to the protective screen 37 to further apply a force away from the indoor air duct 3015 to the protective screen 37. In such a design, the support frame 4 is allowed to apply a force away from the indoor air duct 3015 to the protective screen 37. On the one hand, the snap-fitting structure of the support frame 4 and the protective screen 37 provides an extra supporting and fixing structure of the protective screen 37 to enhance the vibration resistance of the protective screen 37 and reduce vibration or looseness of the protective screen 37 due to wind pressure or other external factors. On the other hand, the protective screen 37 deforms toward the side away from the indoor air duct 3015, so that the protective screen 37 may slightly deform outward, and the interaction force on the side of the protective screen 37 abutting against the air duct shell member 31 is larger. By matching the support frame 4 with the snap-fitting structure on the front side of the protective screen 37, one side of the protective screen 37 with the insertion structure of the air duct shell member 31, and the other side of the protective screen 37 with the abutting structure of the air duct shell member 31, the protective screen 37 may be more stably limited at the air outlet 301 of the air duct shell member 31. The protective screen 37 is difficult to loosen while being conveniently mounted and detached, so that the anti-impact performance of the protective screen 37 is improved.

As shown in FIG. 26 and FIG. 27, in some embodiments, a plurality of snap hooks 41 may be disposed. The plurality of snap hooks 41 may be located on a same curved line or a same curved surface. The curved line or curved surface may protrude in an arc shape toward the side away from the indoor air duct 3015. The plurality of snap hooks 41 are respectively snap-fitted to the protective screen 37, so that the protective screen 37 is bent and deformed toward the side away from the indoor air duct 3015 along the curved line or curved surface.

It is to be noted that a snap-fitting contact surface between each of the snap hooks 41 and the protective screen 37 is a curved surface. Positions at which the plurality of snap hooks 41 are snap-fitted to the protective screen 37 may be located on the same curved line or the same curved surface. Specifically, when the plurality of snap hooks 41 are staggered up and down, the plurality of snap hooks 41 may be located on the same curved surface.

In terms of a related air conditioner, in order to improve the aesthetic degree of appearance and optimize the air flow of the air outlet 301, the air outlet 301 is disposed in an arc shape or special shape, which difficultly fits a conventional fixing mode of the protective screen 37 with a poor fixity. In the air conditioner in the embodiment of the present disclosure, by disposing the plurality of snap hooks 41 snap-fitted to the protective screen 37, the plurality of snap hooks 41 may provide a plurality of fixed supporting points for the protective screen 37, so that the protective screen 37 is stress more uniformly, and some regions of the protective screen 37 are prevented from loosening or deforming due to stress concentration. Moreover, the plurality of snap hooks 41 are located on the same curved line or same curved surface, so that the protective screen 37 is more uniformly stressed along the same curved line or curved surface to deform, and the protective screen 37 may uniformly deform outward integrally. During mounting, the protective screen can fit the arc-shaped or special-shaped air outlet 301 naturally, so that the integral aesthetic degree of the air conditioner is improved.

As shown in FIG. 26, two snap hooks 41 may be included. The two snap hooks 41 may be symmetrically distributed along the center of the protective screen 37.

As shown in FIG. 26, in some embodiments, the air outlet 301 may be formed in the air duct shell member 31 along the height direction of the air conditioner. The support frame 4 may be transversely disposed on the air duct shell member 31. The support frame 4 may be disposed on the air duct shell member 31 along a width direction of the air duct shell member 31. The protective screen 37 may be provided with the spacing slot 3013. The spacing slot 3013 may extend along a transverse direction of the protective screen 37. The spacing slot 3013 may extend along the width direction of the protective screen 37. The direction of the spacing slot 3013 may be consistent with the direction in which the support frame 4 is transversely disposed. The snap hooks 41 may be snap-fitted to a side edge of the spacing slot 3013.

Specifically, the support frame 4 is disposed along the transverse direction of the air outlet 301, two opposite sides of the length of the protective screen 37 may be respectively limited on the air duct shell member 31, and by extending the spacing slot 3013 along the transverse direction of the protective screen 37, the support frame 4 may limit the protective screen along the transverse direction of the protective screen 37. Thus, the limiting direction of the protective screen 37 by the support frame 4 and the limiting direction of the protective screen 37 by the air duct shell member 31 are disposed in a cross manner, which may further improve the stability and impact resistance of the protective screen 37.

Since the protective screen 37 is disposed at the air outlet 301, the air flow at the air outlet 301 will apply a certain pressure to the protective screen 37. If the protective screen is not uniformly fixed, the protective screen 37 may upward or loosen locally, which affects the air supply effect. In this embodiment, the support frame 4 is transversely disposed and the spacing slot 3013 extends transversely, which is beneficial for the front side of the protective screen 37 to be uniformly stressed along the transverse direction, making the protective screen 37 and the air duct shell member 31 more closely fit, thereby improving the integral stability of the indoor fan assembly 3.

As shown in FIG. 26 and FIG. 28, in some embodiments, the protective screen 37 may include a transversely extending first connecting rod 373. Two first connecting rods 373 may be included. The two first connecting rods 373 may be spaced from each other up and down to form the spacing slot 3013. The snap hooks 41 may stretch into the spacing slot 3013 and may be snap-fitted to the side edge of one of the first connecting rods 373.

Specifically, the first connecting rod 373 is transversely disposed on the protective screen 37, and the first connecting rod 373 is disposed in an extending manner on the protective screen 37 along the width direction of the protective screen 37. The two first connecting rods 373 are spaced apart from each other up and down to form the spacing slot 3013. The spacing slot 3013 may serve as a communication port through which the air flow in the indoor air duct 3015 flows through the protective screen 37 or provide an embedding space for the snap hooks 41, so that the snap hooks 41 may extend into the spacing slot 3013 to be snap-fitted to the side edge of one of the first connecting rods 373, which, thus, further improves the connecting stability.

As shown in FIG. 26 and FIG. 27, in some embodiments, the support frame 4 may include a supporting arm 42. The snap hooks 41 may be disposed on the supporting arm 42. The supporting arm 42 may extend into the spacing slot 3013, and the snap hooks 41 may be snap-fitted to a side edge of a rod body.

As shown in FIG. 27, in some embodiments, the snap hooks 41 may be disposed upward. The snap hooks 41 may be snap-fitted to the side edge of the rod body above. It is to be noted that in some other embodiments, the snap hooks 41 may also be disposed downward. The snap hooks 41 may also be snap-fitted to the side edge of each of the first connecting rods 373.

As shown in FIG. 22 and FIG. 29, in some embodiments, a plurality of slots 3011 may be formed. The plurality of slots 3011 may be vertically spaced apart on the air duct shell member 31 along one side of the air outlet 301. A plurality of insertion portions 371 may be disposed. The plurality of insertion portions 371 may be vertically spaced apart along one side of the protective screen 37. The insertion portions 371 may be disposed corresponding to the slots 3011.

The plurality of slots 3011 are spaced apart along an up-down direction of the air outlet 301, i.e., the plurality of slots 3011 are spaced apart along the height direction of the air duct shell member 31. Correspondingly, the insertion portions 371 are vertically spaced apart along one side of the protective screen 37 toward the slots 3011 to correspond to the slots 3011. By spacing apart the plurality of slots 3011 and the plurality of insertion portions 371 up and down and correspondingly inserting the insertion portions into the slots, the fixing points of the protective screen 37 may be increased, so that the integral stress of the protective screen 37 is dispersed, the integral rigidity of the protective screen 37 is enhanced, and the risk that the protective screen 37 is loosened or deformed due to uneven stress is reduced. Moreover, the impact resistance of the protective screen 37 is further improved, and the protective screen 37 mounted at the air outlet 301 can be maintained stable in a strong wind state of the cross-flow fan.

As shown in FIG. 22 and FIG. 29, in some embodiments, the side wall of the air duct shell member 31 is sunken to form the slots 3011.

As shown in FIG. 24 and FIG. 26, in some embodiments, a plurality of abutting slots 3012 may be formed. The plurality of abutting slots 3012 may be vertically spaced apart on the air duct shell member 31 along the other side of the air outlet 301. A plurality of abutting portions 372 may be disposed. The plurality of abutting portions 372 may be vertically spaced apart along the other side of the protective screen 37. The abutting portions 372 may be disposed corresponding to the abutting slots 3012.

The plurality of abutting slots 3012 are spaced apart along an up-down direction of the air outlet 301, i.e., the plurality of abutting slots 3012 are spaced apart along the height direction of the air duct shell member 31. Correspondingly, the abutting portions 372 are vertically spaced apart along one side of the protective screen 37 toward the abutting slots 3012 to correspond to the slots 3011.

In long-term use, the protective screen 37 is fixed only depending on a single abutting portion 372 and a single abutting slot 3012, and may be loosened, deviated, or deformed due to wind impact, vibration, or temperature change. By spacing apart the plurality of abutting slots 3012 and the plurality of abutting portions 372 up and down and correspondingly inserting the abutting portions into the abutting slots, the fixing points for the other side of the protective screen 37 may be increased, so that the integral stress of the protective screen 37 is dispersed, the integral rigidity of the protective screen 37 is enhanced, and the risk that the protective screen 37 is loosened or deformed is reduced. Moreover, the impact resistance of the protective screen 37 is further improved, and the protective screen 37 mounted at the air outlet 301 can be maintained stable in a strong wind state of the cross-flow fan.

As shown in FIG. 22 and FIG. 24, in some embodiments, the abutting slots 3012 and the slots 3011 may be correspondingly formed in two sides of the air outlet 301. Alternatively, the abutting slots 3012 and the slots 3011 may be formed in a staggered manner in two sides of the air outlet 301.

As shown in FIG. 26 and FIG. 28, in some embodiments, the protective screen 37 may include a second connecting rod 374. The second fixing rod 374 may be transversely arranged. The second connecting rod 374 may be disposed along the width direction of the protective screen 37. One transverse end of the second connecting rod 374 may be bent to form the abutting portion 372. The other transverse end of the second connecting rod 374 may be bent to form the insertion portion 371.

Specifically, the abutting portion 372 is formed by bending the transverse end of the second connecting rod 374, and the insertion portion 371 is formed by bending the other transverse end of the second connecting rod 374. Thus, the second connecting rod 374 of the protective screen 37 is of a structure with two ends bent, so that the protective screen 37 can form a double fixing limiting structure between the slot 3011 and the abutting slot 3012, thereby improving the mounting stability of the protective screen 37 on the air duct shell member 31. Further, it is beneficial for the protective screen 37 to be uniformly stressed along the transversely disposed second connecting rod 374, so that the protective screen 37 is not easy to deform in use, and the air vibration noise is reduced.

As shown in FIG. 28, in some embodiments, the abutting portion 372 may be an L-shaped hook by bending the transverse end of the second connecting rod 374. The insertion portion 371 may be an L-shaped hook formed by bending the other transverse end of the second connecting rod 374.

As shown in FIG. 28, in some embodiments, the protective screen 37 may include a plurality of second connecting rods 374. The plurality of second connecting rods 374 may be spaced apart along the height direction of the air conditioner. The plurality of second connecting rods 374 may be spaced apart along the height direction of the air conditioner, i.e., the plurality of second connecting rods 374 are spaced apart along the height direction of the air outlet shell member. A communication hole may be formed between the second connecting rods 374 spaced apart, so that the air may smoothly flow to the outer side of the air outlet 301 through the communication hole.

As shown in FIG. 28, in some embodiments, the protective screen 37 may include a third connecting rod 375, and the third connecting rod 375 may be disposed at the top end of the protective screen 37. Two opposite sides of the third connecting rod 375 may be bent downward, respectively, to form the abutting portion 372 and the insertion portion 371.

By bending the two opposite sides of the third connecting rod 375 located at the top end of the protective screen 37 downward respectively to form the abutting portion 372 and the insertion portion 371, the two opposite sides at the top of the protective screen 37 may be fixed to the air duct shell member 31 integrally through the abutting portion 372 and the insertion portion 371. Moreover, two ends of the third connecting rod 375 are bend downward to prevent the end of the third connecting rod 375 from being directly abutting against the slot 3011 or the abutting slot 3012 to prevent stress concentration in the connecting process of the insertion portion 371 and the abutting portion 372, so as to improve the stability and durability of the integral protective screen 37.

As shown in FIG. 28, in some embodiments, the abutting portion 372 and the insertion portion 371 may also be formed by bending two sides of the first connecting rod 373.

As shown in FIG. 28, in some embodiments, two sides of the first connecting rod 373 may be bent toward the same direction to form the abutting portion 372 and the insertion portion 371 with the same opening direction.

As shown in FIG. 28, in some embodiments, the protective screen 37 may include a fourth connecting rod 377, and the fourth connecting rod 377 may be disposed at the bottom end of the protective screen 37. Two opposite sides of the fourth connecting rod 377 may be bent upward, respectively, to form the abutting portion 372 and the insertion portion 371.

By bending the two opposite sides of the fourth connecting rod 377 located at the bottom end of the protective screen 37 downward respectively to form the abutting portion 372 and the insertion portion 371, the two opposite sides at the top of the protective screen 37 may be fixed to the air duct shell member 31 integrally through the abutting portion 372 and the insertion portion 371. Moreover, two ends of the fourth connecting rod 377 are bend upward to prevent the end of the fourth connecting rod 377 from being directly abutting against the slot 3011 or the abutting slot 3012 to prevent stress concentration in the connecting process of the insertion portion 371 and the abutting portion 372, so as to improve the stability and durability of the integral protective screen 37.

As shown in FIG. 17, in some embodiments, the protective screen 37 may include a fifth connecting rod 378. The fifth connecting rod 378 may extend along a longitudinal direction of the protective screen. The fifth connecting rod 378 and the second connecting rod 374 may intersect to form a mesh structure of the protective screen 37. A plurality of communication holes are formed between the fifth connecting rod 378 and the second connecting rod 374, so that the air may smoothly flow to the outer side of the air outlet 301 through the communication holes.

In some embodiments, a plurality of fifth connecting rods 378 may be disposed. The plurality of fifth connecting rods 378 may be transversely spaced apart. The plurality of fifth connecting rods 378 may be respectively intersected with the plurality of second connecting rods 374 to form the plurality of communication holes.

As shown in FIG. 17, in some embodiments, the protective screen 37 may include a snap-fitting portion 376. Two snap-fitting portions 376 may be included. The two snap-fitting portions 376 may be respectively disposed at the top end and the bottom end of the protective screen 37. Correspondingly, snap-fitting slots 3014 are respectively formed in two opposite sides up and down of the air outlet 301, and the snap-fitting portions 376 located at the top end and the bottom end may be correspondingly inserted into the snap-fitting slots 3014. Thus, the upper and lower sides and the left and right sides of the protective screen 37 may all be fixed and limited with the air duct shell member 31.

The air conditioner in the embodiment of the present disclosure may also be used to solve the problem of the universality of the end plate of the outdoor heat exchanger. In the related air conditioner, the outdoor heat exchanger includes a first heat exchange portion and a second heat exchange portion. The first heat exchange portion and the second heat exchange portion need to be spaced apart, and the interval space therebetween is used for mounting a water splashing wheel. Two ends of the first heat exchange portion and the second heat exchange are connected together through end plates. Since the end plates are fixed mainly through screws, in view of the screw fixing mode, the end plates to be used at two ends of the condenser are not universal, which, thus, increases the use cost and the management cost of a mounting material, and meanwhile, affects the mounting efficiency, hindering quick mounting.

In order to solve the above problem, as shown in FIG. 1, in some embodiments, the air conditioner may include a housing 1. The housing 1 may be configured as a shell outside the air conditioner.

As shown in FIG. 30, in some embodiments, the air conditioner may include a heat exchanger 2. The heat exchanger 2 may be disposed in the housing 1. The heat exchanger 2 may exchange heat with the indoor air or the outdoor air.

As shown in FIG. 2 and FIG. 30, in some embodiments, the heat exchanger 2 may include the outdoor heat exchanger 22 and the indoor heat exchanger 23. The heat exchanger 2 may serve as either the outdoor heat exchanger 22 or the indoor heat exchanger 23. In this embodiment, the heat exchanger 2 is the outdoor heat exchanger 22.

As shown in FIG. 30 and FIG. 31, in some embodiments, two opposite ends of the heat exchanger 2 in the transverse direction are respectively a first end 201 and a second end 202. The heat exchanger 2 may include a first heat exchange portion 221. The first heat exchange portion 221 may extend from the first end 201 to the second end 202.

As shown in FIG. 30 and FIG. 31, in some embodiments, the heat exchanger 2 may include a second heat exchange portion 222. The second heat exchange portion 222 may extend from the first end 201 to the second end 202. The second heat exchange portion 222 and the first heat exchange portion 221 are disposed with two opposite sides in the transverse direction.

As shown in FIG. 30, by taking the two opposite ends of the heat exchanger 2 in the transverse direction as a first direction A1, two ends of the heat exchanger 2 in the first direction are respectively the first end 201 and the second end 202. The second heat exchange portion 222 is disposed in a spaced manner on one side of the first heat exchange portion 221, and the direction in which the second heat exchange portion 222 and the first heat exchange portion 221 are spaced apart is a second direction A2. The first direction A1 may be perpendicular to the second direction A2.

Specifically, when the heat exchanger 2 is configured as the indoor heat exchanger, the heat exchanger 2 is vertically disposed in the air conditioner, and the heat exchanger 2 is disposed along the height direction of the air conditioner. The first heat exchange portion 221 and the second heat exchange portion 222 are both vertically disposed in the air conditioner, and the first heat exchange portion 221 may be vertically disposed on one side of the second heat exchange portion 222. The first heat exchange portion 221 and the second heat exchange portion 222 are disposed along the height direction of the air conditioner. Moreover, the arrangement direction of the two transverse ends of the first heat exchange portion 221 is the same as the arrangement direction of the two transverse ends of the second heat exchange portion 222.

As shown in FIG. 31 and FIG. 32, in some embodiments, the heat exchanger 2 may include a first end plate 223. Two first end plates 223 may be disposed. The two first end plates 223 may be respectively disposed at ends of the first heat exchange portion 221 corresponding to the first end 201 and the second end 202. Specifically, one of the first end plates 223 is disposed at the end of the first end 201 of the first heat exchange portion 221, and the other first end plate 223 is disposed at the end of the second end 202 of the first heat exchange portion 221. The first end plates 223 are configured to connect the first heat exchange portion 221 and the second heat exchange portion 222.

As shown in FIG. 31 and FIG. 32, in some embodiments, the heat exchanger 2 may include a second end plate 224. Two second end plates 224 may be disposed. The two second end plates 224 may be respectively disposed at ends of the second heat exchange portion 222 corresponding to the first end 201 and the second end 202. Specifically, one of the second end plates 224 is disposed at the end of the first end 201 of the second heat exchange portion 222, and the other second end plate 224 is disposed at the end of the second end 202 of the second heat exchange portion 222. The second end plates 224 are configured to connect the first heat exchange portion 221 and the second heat exchange portion 222.

As shown in FIG. 31 and FIG. 32, in some embodiments, the first end plates 223 and the second end plates 224 may be connected in a spaced region 203 of the first heat exchange portion 221 and the second heat exchange portion 222. Thus, the first end plates 223 and the second end plates 224 located on two sides of the heat exchanger 2 may use the spaced region 203 of the first heat exchange portion 221 and the second heat exchange portion 222 as a connecting region to avoid a problem that a connecting member (not shown in the figures) respectively interferes with the first heat exchange portion 221 and the second heat exchange portion 222.

As shown in FIG. 33 and FIG. 34, in some embodiments, a first connecting hole 204 and a first flanged hole 205 spaced apart from each other may be formed in a region of the first end plate 223 connected to the second end plate 224. The first flanged hole 205 may be formed in a protruding manner in a side wall of the first end plate 223 toward the first end 201. The first connecting hole 204 and the first flanged hole 205 are both located in the spaced region 203 of the first end plate 223 corresponding to the first heat exchange portion 221 and the second heat exchange portion 222. By forming the first flanged hole 205 in the first end plate 223 in a protruding manner, a space that accommodates the connecting member may be formed in the first flange hole 205. In some embodiments, the connecting member may be a nut, a screw, or the like.

As shown in FIG. 35 and FIG. 36, in some embodiments, a second connecting hole 206 and a second flanged hole 207 spaced apart from each other may be formed in a region of the second end plate 224 connected to the first end plate 223. The second connecting hole 206 and the second flanged hole 207 are both located in the spaced region 203 of the second end plate 224 corresponding to the first heat exchange portion 221 and the second heat exchange portion 222. The second flanged hole 207 may be formed in a protruding manner in a side wall of the second end plate 224 toward the second end 202. By forming the second flanged hole 207 in the second end plate 224 in a protruding manner, a space that accommodates the connecting member may be formed in the second flange hole 207.

Specifically, as shown in FIG. 33 and FIG. 34, by forming the first connecting hole 204 and the first flanged hole 205 in the first end plate 223 and forming the second connecting hole 206 and the second flanged hole 207 in the second end plate 224, when the first connecting hole 204 communicates with the second flanged hole 207 correspondingly, the connecting member may be disposed in a penetrating manner in the first connecting hole 204 and the second flanged hole 207, so as to connect the first end plate 223 and the second end plate 224 together. As shown in FIG. 35 and FIG. 36, when the second connecting hole 206 communicates with the first flanged hole 205 correspondingly, the connecting member may be disposed in a penetrating manner in the second connecting hole 206 and the first flanged hole 205, so as to connect the first end plate 223 and the second end plate 224 together.

Moreover, the mounting directions of the connecting members are from outside to inside, so that the mounting directions of the connecting members at the first end 201 and the second end 202 of the heat exchanger 2 are opposite. The first flanged hole 205 is formed in a protruding manner in the side wall of the first end plate 223 toward the first end 201 and the second flanged hole 207 is formed in a protruding manner in the side wall of the second end plate 224 toward the second end 202, i.e., the directions in which the first flanged hole 205 of the first end plate 223 and the second flanged hole 207 of the second end plate 224 are formed in a protruding manner are different. Thus, in terms of mounting the first end 201, the second flanged hole 207 formed toward the second end 202 correspondingly communicates with the first connecting hole 204 to provide a correct mounting space for the connecting member, and in terms of mounting the second end 202, the first flanged hole 205 formed toward the first end 201 correspondingly communicates with the second connecting hole 206 to provide a correct mounting space for the connecting member, thereby providing a structural basis for mounting two opposite ends of the heat exchanger 2.

As shown in FIG. 37, in some embodiments, a distance between the second connecting hole 206 and the second flanged hole 207 may be a second distance L2. A distance between the first connecting hole 204 and the first flanged hole 205 may be a first distance L1. The first distance L1 is different from the second distance L2. At the first end 201, as shown in FIG. 33, the first connecting hole 204 and the second flanged hole 207 may be formed correspondingly and communicate with each other. The first flanged hole 205 may be shielded by the second end plate 224. The second flanged hole 206 may be shielded by the first end plate 223. At the second end 202, as shown in FIG. 33, the first flanged hole 205 and the second connecting hole 206 may be formed correspondingly and communicate with each other. The first connecting hole 204 may be shielded by the second end plate 224. The second flanged hole 207 may be shielded by the first end plate 223.

By setting the first distance L1 and the second distance L2 as different distances, the first end plate 223 or the second end plate 224 at one end and the corresponding end plate at the other end may be disposed in a staggered manner, so that the first connecting hole 204 at the first end 201 and the second flanged hole 207 are correspondingly formed and communicate with each other, and the first flanged hole 205 at the second end 202 and the second connecting hole 206 are formed correspondingly and communicate with each other.

Specifically, as shown in FIG. 33 and FIG. 34, when the first end 201 of the heat exchanger 2 is mounted, the first connecting hole 204 located at the first end 201 and the second flanged hole 207 are correspondingly formed. Since the first distance L1 and the second distance L2 are set as different distances, the first flanged hole 205 is shielded by the second end plate 224, and the second connecting hole 206 is shielded by the first end plate 223. Thus, a connecting mistake of staff during mounting may be avoided, and the efficiency in the mounting process may also be improved.

As shown in FIG. 35 and FIG. 36, when the second end 202 of the heat exchanger 2 is mounted, the second end plates 224 are disposed in a staggered manner at two opposite ends of the heat exchanger 2, and the positions of the first end plates 223 may be maintained immobile, so that the second connecting hole 206 located at the second end 202 and the first flanged hole 205 are formed correspondingly. Since the first distance L1 and the second distance L2 are set as different distances, the second flanged hole 207 is shielded by the first end plate 223, and the first connecting hole 204 is shielded by the second end plate 224. Thus, a connecting mistake of staff during mounting may be avoided, and the efficiency in the mounting process may also be improved. Moreover, either the first end plates 223 or the second end plates 224 used respectively at the first end 201 and the second end 202 are the same, so that the universality of the mounting the end plates of the heat exchanger 2 is improved, the production and manufacturing complexity is reduced, and it is not needed to store and manage end plates of various models.

In the related heat exchanger 2, two heat exchange portions are usually spaced apart and are connected by means of the two end plates. The interval space formed by spacing apart the heat exchange portions is used to mount a heat dissipation device. However, since the connecting member needs to be mounted and connected from outside to inside in the process of connecting the connecting members such as screws, the end plates used at two transverse ends of the heat exchanger 2 are different.

In this technical solution, the first end plates 223 used at the first end 201 and the second end 202 of the heat exchanger 2 are of a same structure, the second end plates 224 used at the first end 201 and the second end 202 of the heat exchanger 2 are of a same structure, too, and the two transverse ends of the heat exchanger 2 are both connected to the first end plates 223 and the second end plates 224. By forming the first connecting hole 204 and the first flanged hole 205 in the first end plate 223 and forming the second connecting hole 206 and the second flanged hole 207 in the second end plate 224, when the first connecting hole 204 communicates with the second flanged hole 207 correspondingly, the connecting member may be disposed in a penetrating manner in the first connecting hole 204 and the second flanged hole 207, so as to connect the first end plate 223 and the second end plate 224 of one end of the heat exchanger 2 together. When the second connecting hole 206 communicates with the first flanged hole 205 correspondingly, the connecting member may be disposed in a penetrating manner in the second connecting hole 206 and the first flanged hole 205, so as to connect the first end plate 223 and the second end plate 224 at the other end of the heat exchanger 2 together.

Further, by setting the first distance L1 and the second distance L2 as different distances, when the first heat exchange portion 221 and the second heat exchange portion 222 at two opposite ends of the heat exchanger 2 are connected, the first end plate 223 or the second end plate 224 on one side may be disposed in a staggered manner, so that the corresponding connecting hole communicates with the flanged hole correspondingly, so that two ends of the heat exchanger 2 are connected and fixed respectively by using the same first end plate 223 and second end plate 224. Moreover, since the first distance L1 and the second distance L2 are set as different distances, when one hole of the first end plate 223 communicates with one hole of the second end plate 224 correspondingly, the other hole of the first end plate 223 and the other hole of the second end plate 224 may be shielded. Thus, when the water splashing wheel 51 is disposed in an interval between the first heat exchange portion 221 and the second heat exchange portion 222, water lifted by the water splashing wheel 51 will not be splashed to the outer side directly through a hole where no connecting member is disposed.

In the technical solution of the embodiment of the disclosure, a situation that end plates of different structures are used at two ends of the heat exchanger 2 in a conventional design may be avoided. Use of the same first end plate 223 and second end plate 224 at two ends of the heat exchanger 2 may improve the mounting standardization of the end plates of the heat exchanger 2. The universal first end plate 223 and second end plate 224 may reduce the complexity of managing various materials in the production process of a production manufacturer, so that the material purchasing and production process is simplified, the manpower management time is shortened, and the mounting and production efficiency is further improved.

As shown in FIG. 37, in some embodiments, the first connecting hole 204 and the first flanged hole 205 may be spaced apart up and down along the height direction A3 of the first end plate 223. The second connecting hole 206 and the second flanged hole 207 may be spaced apart up and down along the height direction A3 of the second end plate 224.

It is to be noted that the height direction of the first end plate 223 and the height direction of the second end plate 224 may correspond to the height direction of the air conditioner. As shown in FIG. 5 and FIG. 7, since the first connecting hole 204 and the first flanged hole 205 are spaced apart in the height direction A3 of the first end plate 223, and the second connecting hole 206 and the second flanged hole 207 are spaced apart in the height direction of the second end plate 224, the height direction of the heat exchanger 2 may be fully utilized. By disposing the first end plate 223 at the first end 201 in a staggered manner up and down relative to the first end plate 223 at the second end 202 or by disposing the second end plate 224 at the first end 201 in a staggered manner up and down relative to the second end plate 224 at the second end 202, the first connecting hole 204 and the second flanged hole 207 in one end are formed correspondingly and communicate with each other, and the second connecting hole 206 and the first flanged hole 205 in the other end are formed correspondingly and communicate with each other, so that the first heat exchange portion 221 and the second heat exchange portion 222 are fixed at two ends by using the same first end plate 223 and second end plate 224.

On the other hand, in a case where the internal space of the air conditioner is limited, the connecting hole and the flanged hole spaced apart up and down may utilize the height space of the heat exchanger 2 more effectively, so that the heat exchanger 2 is more compact and efficient.

As shown in FIG. 38 and FIG. 39, in some embodiments, the first connecting hole 204 and the first flanged hole 205 may be formed in the upper end of the first end plate 223. The second connecting hole 206 and the second flanged hole 207 may be formed in the upper end of the second end plate 224.

As shown in FIG. 38, in some embodiments, two first connecting holes 204 and two first flanged holes 205 may be respectively formed. One group of the first connecting hole 204 and the first flanged hole 205 may be formed close to the upper end of the first end plate 223. The other group of the first connecting hole 204 and the first flanged hole 205 may be formed in the lower end of the second end plate 224.

As shown in FIG. 40 and FIG. 41, in some embodiments, two second connecting holes 206 and two second flanged holes 207 may be respectively formed. One group of the second connecting hole 206 and the second flanged hole 207 may be formed close to the upper end of the second end plate 224. The other group of the second connecting hole 206 and the second flanged hole 207 may be formed in the lower end of the second end plate 224.

Thus, by forming the two groups of first connecting holes 204 and first flanged holes 205 as well as the two groups of second connecting holes 206 and second flanged holes 207, the connecting stability between the first heat exchange portion 221 and the second heat exchange portion 222 may be improved.

In some other embodiments, the first connecting hole 204 and the first flanged hole 205 may be spaced apart along the width direction of the first end plate 223. The second connecting hole 206 and the second flanged hole 207 may be spaced apart up and down along the width direction of the second end plate 224. It is to be noted that the width direction of the first end plate 223 and the width direction of the second end plate 224 may correspondingly refer to a second direction.

As shown in FIG. 31 and FIG. 32, in some embodiments, the two first end plates 223 may be disposed at the same height of the two ends of the first heat exchange portion 221. The two second end plates 224 may be located at different heights of the two ends of the first heat exchange portion 221, and the two second end plates 224 are disposed in a staggered manner in the height direction.

Since the first connecting hole 204 and the first flanged hole 205 are spaced apart in the height direction of the first end plate 223, and the second connecting hole 206 and the second flanged hole 207 are spaced apart in the height direction of the second end plate 224, during mounting, by disposing the first end plate 223 at one end in a staggered manner up and down relative to the first end plate 223 at the other end or by disposing the second end plate 224 at one end in a staggered manner up and down relative to the second end plate 224 at the other end, the two opposite ends of the heat exchanger 2 can be fixed by using the connecting member.

In this embodiment, the first end plates 223 are located at the same height of the two ends of the first heat exchange portion 221, i.e., the positions of the first end plates 223 at the two opposite ends of the first heat exchange portion 221 are the same, and the two second end plates 224 are located at different heights of the two ends of the first heat exchange portion 221. Thus, the operator only needs to change the mounting position of one end plate during mounting to correspondingly communicate the corresponding flanged hole with the connecting hole. Thus, the process of mounting the heat exchanger 2 may be simplified, so that the mounting and production efficiencies are improved.

As shown in FIG. 31 and FIG. 32, in some embodiments, the first heat exchanger portion 221 and the second heat exchange portion 222 may be the same in height. The height of the first end plate 223 may be designed to be the same as the height of the first heat exchange portion 221, and the height of the second end plate 224 may be designed to be less than the height of the second heat exchange portion 222. Thus, mounting of the first end plates 223 is facilitated, and when the second end plates 224 are mounted in a staggered manner in the height direction, the upper and lower ends of the second end plates 224 do not exceed the upper and lower ends of the second heat exchange portion 222, so that the second end plates 224 are prevented from occupying the space in the height direction of the air conditioner since the second end plates are mounted in a staggered manner up and down, and the structural compactness of the heat exchanger 2 is maintained.

In some other embodiments, the two first end plates 223 may be located at the same height of the two ends of the first heat exchange portion 221. The two first end plates 223 may be located at different heights of the two ends of the first heat exchange portion 221, and the two first end plates 223 are disposed in a staggered manner in the height direction.

As shown in FIG. 32 and FIG. 37, in some embodiments, a staggered distance between the two second end plates 224 in the height direction may be the same as a difference value between the first distance L1 and the second distance L2.

Thus, during mounting, the staggered distance between the two second end plates 224 in the height direction is correspondingly the same as the difference value between the first distance L1 and the second distance L2. When the first end plate 223 at one end is staggered relative to the first end plate 223 at the other end according to the difference value between the first distance L1 and the second distance L2 or when the second end plate 224 at one end is staggered relative to the second end plate 224 at the other end according to the difference value between the first distance L1 and the second distance L2, the first connecting hole 204 in one end may be formed corresponding to the second flanged hole 207 and communicates with the second flanged hole, and the first flanged hole 205 in the other end may be formed corresponding to the second connecting hole 206 and communicates with the second connecting hole, and meanwhile, the hole where the connecting member is not disposed in a penetrating manner may be shielded by the other end plate.

As shown in FIG. 33 and FIG. 34, in some embodiments, the first heat exchange portion 221 may include a plurality of transversely extending first heat dissipation tubes 2211. As shown in FIG. 37, the plurality of first heat dissipation tubes 2211 may be spaced apart in sequence along the height direction of first spacing L3. Part of the plurality of first heat dissipation tubes 2211 may improve the heat exchange efficiency between the first heat exchange portion 221 and the air flow.

As shown in FIG. 38 and FIG. 39, in some embodiments, the first end plate 223 may be correspondingly provided with a plurality of first through holes 209. The plurality of first through holes 209 may be spaced apart along the height direction of the first end plate 223. The plurality of the first heat dissipation tubes 2211 may be correspondingly disposed in a penetrating manner in the first through holes 209, so that the connecting stability between the first end plate 223 and the first heat exchange portion 221 is improved.

It is to be noted that as shown in FIG. 37, the spacing between the first heat dissipation tubes 2211 may be correspondingly the spacing between the first through holes 209, and the spacing between the second heat dissipation tubes 2221 may be correspondingly the spacing between the second through holes 210. To facilitate understanding, the first spacing is illustrated by the spacing L3 between the first through holes 209, and the second spacing is illustrated by the spacing L4 between the second through holes 210.

As shown in FIG. 33 and FIG. 34, in some embodiments, the second heat exchange portion 222 may include a plurality of transversely extending second heat dissipation tubes 2221. As shown in FIG. 37, the plurality of second heat dissipation tubes 2221 may be spaced apart in sequence along the height direction of second spacing L4. Part of the plurality of second heat dissipation tubes 2221 may improve the heat exchange efficiency between the second heat exchange portion 222 and the air flow.

As shown in FIG. 40, in some embodiments, the second end plate 224 may be correspondingly provided with a plurality of second through holes 210. The plurality of second through holes 210 may be spaced apart along the height direction of the second end plate 224. The plurality of the second heat dissipation tubes 2221 may be correspondingly disposed in a penetrating manner in the second through holes 210, so that the connecting stability between the second end plate 224 and the second heat exchange portion 222 is improved.

As shown in FIG. 31, FIG. 32, and FIG. 37, in some embodiments, a difference value between the first distance L1 and the second distance L2 may be the same as the first spacing L3. Thus, when the operator mounts the first end plate 223 and the second end plate 224 at the other end of the heat exchanger 2, it is only needed to correspondingly stagger the first end plate 223 and the first end plate 223 at the other end by a mounting position of one heat dissipation tube in the height direction. Thus, the mounting process may be further simplified, so that the mounting efficiency is improved.

As shown in FIG. 37, in some embodiments, a difference value between the first distance L1 and the second distance L2 may be the same as the second spacing L4. Thus, when the operator mounts the first end plate 223 and the second end plate 224 at the other end of the heat exchanger 2, it is only needed to correspondingly stagger the second end plate 224 and the second end plate 224 at the other end by a mounting position of one heat dissipation tube in the height direction. Thus, the mounting process may be further simplified, so that the mounting efficiency is improved.

As shown in FIG. 34 and FIG. 38, in some embodiments, one of the first end plate 223 and the second end plate 224 may be provided with a snap slot 208. The other of the first end plate 223 and the second end plate 224 may be provided with a hook portion 2241. The hook portion 2241 may be snap-fitted to the snap slot 208.

The first end plate 223 and the second end plate 224 may be pre-fixed through the cooperation of the snap slot 208 and the hook portion 2241. During mounting, the snap slot 208 and the hook portion 2241 are snap-fitted, so that the first end plate 223 and the second end plate 224 may be pre-connected, and then the connecting member is driven, so that the mounting efficiency may be improved with a convenient operation. On the other hand, the first end plate 223 and the second end plate 224 are fixed through the connecting member or snap-fitted through the snap slot 208 and the hook portion 2241, so that the stable connection between the first end plate 223 and the second end plate 224 is further improved.

As shown in FIG. 38, in some embodiments, the snap slot 208 may be formed in the side of the first end plate 223 toward the second heat exchange portion 222. The hook portion 2241 may be disposed on a side wall of the second end plate 224 toward the first end 201.

Specifically, at the first end 201 of the heat exchanger 2, the hook portion 2241 may be disposed on the side wall of the second end plate 224 toward the first end 201. When the hook portion 2241 is snap-fitted in the snap slot 208, the first end plate 223 may be clamped between the hook portion 2241 and the second end plate 224, so that the connecting stability between the first end plate 223 and the second end plate 224 at the first end 201 is improved. At the second end 202 of the heat exchanger 2, when the hook portion 2241 is snap-fitted in the snap slot 208, the first end plate 223 may also be clamped between the hook portion 2241 and the second end plate 224, so that the connecting stability between the first end plate 223 and the second end plate 224 at the second end 202 may be improved.

As shown in FIG. 38, in some embodiments, the snap slot 208 may include a first snap slot 2081 and a second snap slot 2082. The first snap slot 2081 and the second snap slot 2082 may be spaced apart in the first end plate 223 along the height direction. A height difference value between the first snap slot 2081 and the second snap slot 2082 may be the same as a difference value between the first distance L1 and the second distance L2. As shown in FIG. 6, at the first end 201, the hook portion 2241 may be snap-fitted to the first snap slot 2081. As shown in FIG. 36, at the second end 202, the hook portion 2241 may be snap-fitted to the second snap slot 2082.

The height difference value between the first snap slot 2081 and the second snap slot 2082 may be the same as the difference value between the first distance L1 and the second distance L2, so that the hook portion 2241 can be snap-fitted to the corresponding snap slot 208 at different heights. Specifically, when the second end plates 224 are disposed in a staggered manner in height at the first end 201 and the second end 202, the hook portion 2241 located at the first end 201 can be snap-fitted to the first snap slot 2081, and the hook portion 2241 located at the second end 202 can be snap-fitted to the second snap slot 2082, so that the mounting flexibility and adaptability of the first end plate 223 and the second end plate 224 are improved.

In some other embodiments, the snap slot 208 capable of extending along the height direction is formed in the side of the first end plate 223 toward the second heat exchange portion 222. Thus, when the second end plates 224 may be respectively disposed in a staggered manner in height at two ends, the hook portion 2241 is allowed to be snap-fitted to the corresponding snap slot 208 at different heights.

As shown in FIG. 34 and FIG. 39, in some embodiments, a first flanged portion 2231 may be disposed in a protruding manner on the side wall of the first end plate 223 toward the first end 201. The first flanged portion 2231 may be annular. A first flanged hole 205 may be formed in the annular first flanged portion 2231. The first flanged hole 205 may be a threaded bore. The threaded bore is formed in the first flanged portion 2231, which is disposed in a protruding manner, so that the first flanged hole 205 may form a connecting space of the connecting member.

As shown in FIG. 36 and FIG. 40, in some embodiments, a second flanged portion 2242 is disposed in a protruding manner on the side wall of the second end plate 224 toward the second end 202, the second flanged portion 2242 is annular, a second flanged hole 207 is formed in the annular second flanged portion 2242, and the second flanged hole 207 is a threaded bore. The threaded bore is formed in the second flanged portion 2242, which is disposed in a protruding manner, so that the second flanged hole 207 may form a connecting space of the connecting member.

Specifically, since the mounting connecting members need to be mounted from outside to inside, thus, mounting connecting holes in the first end 201 and the second end 202 are opposite. By disposing the first flanged portion 2231 in a protruding manner on the side wall of the first end plate 223 toward the first end 201 and disposing the second flanged portion 2242 in a protruding manner on the side wall of the second end plate 224 toward the second end 202, at the first end 201 of the heat exchanger 2, the connecting member may be disposed in a penetrating manner in the first connecting hole 204 and the second flanged hole 207 in sequence, and at the second end 202 of the heat exchanger 2, the connecting member may be disposed in a penetrating manner in the first flanged hole 205 and the second connecting hole 206 in sequence, so that the first end 201 and the second end 202 of the heat exchanger 2 use the same first end plate 223. Moreover, the first end 201 and the second end 202 of the heat exchanger 2 use the same second end plate 224.

As shown in FIG. 34 and FIG. 38, in some embodiments, a first mark 2232 may be disposed on the side wall of the first end plate 223 toward the first end 201. The first mark 2232 may be disposed adjacent to the first connecting hole 204. The first mark 2232 may be configured to indicate a connecting position where the connecting member connects the first end plate 223 and the second end plate 224.

Specifically, at the first end 201, the first end plate 223 is disposed on the outer side of the second end plate 224, i.e., the first end plate 223 is disposed on one side of the second end plate 224 toward the first end 201. In the process that mounting personnel mounts the first heat exchange portion 221 and the second heat exchange portion 222 at the first end 201, the first end plate 223 is disposed toward the operator. By disposing the first mark 2232 on the side wall of the first end plate 223 toward the first end 201 and disposing the first mark 2232 adjacent to the first connecting hole 204, in the mounting process on one side of the first end 201 by the mounting personnel, a connecting position can be rapidly and accurately found, so that the connecting member penetrates through the first connecting hole 204 and the second flanged hole 207 in sequence, and the first end 201 of the heat exchanger 2 is mounted quickly. Moreover, during mounting, the mounting personnel may confirm the placement position and direction of the connecting member (for example, a screw, a bolt, or the like) according to the first marker 2232, so that a connecting false or a missed connection is avoided, which greatly improves the mounting efficiency and accuracy.

As shown in FIG. 34 and FIG. 38, in some embodiments, a third mark 2233 may be disposed on the side wall of the first end plate 223 toward the first end 201. The third mark 2233 may be configured to indicate the position where the connecting member cannot be mounted.

In some embodiments, the third mark 2233 may be a mark of x. It is to be noted that the third mark 2233 may be another prohibition mark, which reminds the mounting personnel not to mount the connecting member in the corresponding hole.

As shown in FIG. 36 and FIG. 40, in some embodiments, a second mark 2243 may be disposed on the side wall of the second end plate 224 toward the second end 202. The second mark 2243 may be disposed adjacent to the second connecting hole 207. The second mark 2243 may be configured to indicate a connecting position where the connecting member connects the first end plate 223 and the second end plate 224.

Specifically, at the second end 202, the second end plate 224 is disposed on the outer side of the first end plate 223, i.e., the second end plate 224 is disposed on one side of the first end plate 223 toward the second end 202. In the process that mounting personnel mounts the first heat exchange portion 221 and the second heat exchange portion 222 at the second end 202, the second end plate 224 is disposed toward the operator. By disposing the second mark 2243 on the side wall of the second end plate 224 toward the second end 202 and disposing the second mark 2243 adjacent to the second flanged hole 207, in the mounting process on one side of the second end 202 by the mounting personnel, a connecting position can be rapidly and accurately found, so that the connecting member penetrates through the second connecting hole 206 and the first flanged hole 205 in sequence, and the second end 202 of the heat exchanger 2 is mounted quickly. Moreover, during mounting, the mounting personnel may confirm the placement position and direction of the connecting member (for example, a screw, a bolt, or the like) according to the second marker 2243, so that a connecting false or a missed connection is avoided, which greatly improves the mounting efficiency and accuracy.

As shown in FIG. 36 and FIG. 30, in some embodiments, a fourth mark 2244 may be disposed on the side wall of the second end plate 224 toward the second end 202. The fourth mark 2244 may be disposed adjacent to the second flanged hole 207. The fourth mark 2244 may be configured to indicate the position where the connecting member cannot be mounted.

Specifically, at the second end 202 of the heat exchanger 2, the second flanged portion 2242 is disposed in a protruding manner on the side wall of the second end plate 224 toward the second end 202. In terms of mounting the second end 202 of the heat exchanger 2, the connecting member can penetrate through the second flanged hole 207 for connection, so that the fourth mark 2244 is disposed at a position adjacent to the second flanged hole 207, which may remind the mounting personnel to avoid false mounting, thereby improving the mounting accuracy and the mounting efficiency.

In some embodiments, the fourth mark 2244 may be a mark of x. It is to be noted that the fourth mark 2244 may be another prohibition mark, which reminds the mounting personnel not to mount the connecting member in the corresponding hole.

As shown in FIG. 42 and FIG. 43, in some embodiments, the air conditioner may include a second water collection tray 5. The second water collection tray 5 may be provided with a water collection groove 50. The first heat exchange portion 221 and the second heat exchange portion 222 are mounted in the second water collection tray 5 and are disposed above the water collection groove 50. The second water collection tray 5 may be configured to collect condensate in the air conditioner. When the heat exchanger 2 is configured as a condenser, the first heat exchange portion 221 and the second heat exchange portion 222 are disposed above the water collection groove 50, which is beneficial to cooling the heat exchanger 2.

As shown in FIG. 42 and FIG. 43, in some embodiments, the water splashing wheel 51 may be disposed on the second water collection tray 5, and the water splashing wheel 51 is rotatably disposed in the water collection groove 50. The water splashing wheel 51 may be located in the interval region 203 between the first heat exchange portion 221 and the second heat exchange portion 222. The second water collection tray 5 may be provided with a water splashing electric machine 52. The water splashing electric machine 52 may be disposed on the outer side of the water collection groove 50. The water splashing electric machine 52 may be in transmission connection with the water splashing wheel 51 to drive the water splashing wheel 51 to rotate.

Specifically, a water flow channel is formed in the interval region 203 between the first heat exchange portion 221 and the second heat exchange portion 222, and the water splashing wheel 51 is correspondingly disposed at the lower end of the interval region 203. In the refrigerating mode of the air conditioner, when the heat exchanger 3 serves as the outdoor heat exchanger, by disposing the second water collection tray 5 below the first heat exchange portion 221 and the second heat exchange portion 222, the heat exchanger will generate condensate water on the surface in the heat exchange process, and the condensate water will flow to the second water collection tray 5 under the action of gravity. By disposing the water splashing wheel 51 and the water splashing electric machine 52 on the second water collection tray 5, and making the water splashing electric machine 52 drive the water splashing wheel 51 to rotate, the water splashing wheel 51 rotates to splash the condensate water in the water splashing wheel 51, so that water cools the surface of the heat exchanger. Thus, on the one hand, self-processing of water in the water collection groove 50 may be achieved, and the heat exchange efficiency of the outdoor heat exchanger may also be improved.

Those skilled in the art should understand that the scope of the present disclosure is not limited to the above specific embodiments, and some elements of the embodiments may be amended and replaced without departing from the spirit of the present disclosure. The scope of the present disclosure is limited by the appended claims.