Air conditioner

Abstract

The utility model provides an air conditioner which comprises a machine shell, a heat exchanger and a heat exchanger. A containing space is arranged in the machine shell. The indoor heat exchanger is arranged in the accommodating space, and the indoor heat exchanger is used for exchanging heat with indoor air; the indoor fan assembly is arranged in the accommodating space and is arranged opposite to the indoor heat exchanger; the indoor fan assembly comprises an air duct shell, an air inlet and an air outlet, the indoor wind wheel is rotatably arranged in the air duct shell, and the indoor wind wheel is arranged in the vertical direction of the air conditioner; a lower end cover is arranged at the lower end of the indoor wind wheel; the indoor motor is arranged at the bottom of the air duct shell; an output shaft and a shaft hole are formed in the top of the indoor motor, and the output shaft extends upwards through the shaft hole and extends into the air duct shell to be in transmission connection with the lower end cover; the shielding piece is arranged on the output shaft in a sleeving mode, and the shielding piece is arranged on the periphery of the output shaft in a circumferential surrounding mode and shields the upper portion of the shaft hole; wherein the bottom surface of the lower end cover is provided with a mounting space which is sunken upwards, and the shielding piece is arranged in the mounting space.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field mainly relates to a kind of air conditioners. BACKGROUND

[0002] Air conditioner is a kind of equipment that can be used to adjust indoor air temperature, humidity, air velocity and air cleanliness, is widely used in family, office, commercial place and industrial environment.Its basic principle is through the circulation of refrigerant, utilizes the physical process of evaporation heat absorption and condensation heat release, realizes heat transfer, to achieve the effect of cooling or heating.With the progress of technology, air conditioner not only has refrigeration and heating function but also integrates dehumidification, air purification and other multiple functions, becomes one of indispensable electrical appliances in modern life.

[0003] Air conditioner is usually composed of compressor, condenser, evaporator, expansion valve and indoor fan wheel and other main components.Among them, compressor is responsible for driving refrigerant circulation, condenser and evaporator are used for heat release and heat absorption respectively, expansion valve is used to adjust refrigerant flow, and indoor fan wheel is used to accelerate air flow to enhance heat exchange efficiency.

[0004] At present, driving motor is mainly arranged above cross-flow indoor fan wheel, but it will occupy the internal space of air conditioner, cause machine body volume to become big, not only increase manufacturing cost, but also reduce cabinet quantity in conveying process.On the contrary, driving motor is installed at the bottom of cross-flow air duct, can reduce the occupation of internal space, but is easy to be eroded by condensate and cause driving motor rust problem. UTILITY MODEL CONTENT

[0005] Based on prior art, since indoor motor is vertically installed at the bottom of fan wheel, it is easy to occupy the space in the height direction of air conditioner, and is easy to be eroded by condensate, so that the working safety of indoor motor is affected, provide a kind of air conditioner.

[0006] To solve the above technical problems, the utility model takes the following technical scheme:

[0007] One aspect of the present application provides an air conditioner, comprising a casing configured as an outer shell of the air conditioner; an accommodating space provided in the casing; an indoor heat exchanger provided in the accommodating space and configured to exchange heat with indoor air; an indoor fan assembly provided in the accommodating space and arranged opposite to the indoor heat exchanger; the indoor fan assembly comprises a duct casing provided in the casing; an indoor fan wheel rotatably provided in the duct casing and arranged in a height direction of the air conditioner; a lower end of the indoor fan wheel is provided with a lower end cover; an indoor motor is provided at a bottom of the duct casing; a top of the indoor motor is provided with an output shaft and a shaft hole, the output shaft extends upward through the shaft hole and extends into the duct casing and is in transmission connection with the lower end cover; a shielding member is sleeved on the output shaft and circumferentially arranged around an outer periphery of the output shaft and shields an upper portion of the shaft hole; wherein a bottom surface of the lower end cover is provided with an upwardly recessed mounting space, and the shielding member is provided in the mounting space.

[0008] The above technical solution has the following advantages or beneficial effects: by recessing the lower end cover of the indoor fan wheel upwardly to form a mounting space, the shielding member can be arranged in the mounting space, so that no additional space is required for the indoor fan wheel to install waterproof components. In the vertical direction of the air conditioner, the mounting position of the shielding member overlaps with the lower end mounting space of the indoor fan wheel, thereby reducing the occupation of the internal space of the air conditioner and making the installation structure more compact. Further, the shielding member is sleeved on the output shaft and extends circumferentially towards the output shaft, which can form a physical barrier above the shaft hole and shield the shaft hole below, preventing the condensed liquid from directly entering the drive motor through the shaft hole, thereby avoiding the risk of moisture, rust or short circuit of the drive motor, and achieving good waterproof effect.

[0009] In some embodiments of the present application, the lower end cover comprises: a bottom plate provided at a lower end of the indoor fan wheel, the bottom plate being provided with an opening; a boss provided 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 being in communication with the opening; a top wall of the boss being provided above the opening, the indoor motor extending into the mounting space and being in transmission connection with the top wall of the boss.

[0010] Another technical solution in the above technical solution has the following advantages or beneficial effects: the boss extends upward from the opening of the bottom plate to form a mounting space, so that part of the indoor motor and the shielding piece can be partially embedded inside the boss, instead of completely occupying the space at the bottom of the air duct, which can reduce the occupation of the internal space of the air conditioner and make the structure more compact. Moreover, since the mounting space is surrounded by the boss, even if the condensed liquid flows along the bottom of the indoor fan, it is more likely to be blocked or guided to other drainage paths by the side wall of the boss, reducing the risk of directly entering the indoor motor.

[0011] In some embodiments of the present application, an air conditioner is provided, wherein the circumferential side wall of the boss extends upward from the opening of the bottom plate and is connected between the bottom plate and the top wall of the boss; in the direction from top to bottom, the circumferential side wall of the boss is inclinedly arranged away from the axis of the output shaft.

[0012] Another technical solution in the above technical solution has the following advantages or beneficial effects: by inclining the circumferential side wall of the boss in the direction from top to bottom away from the axis of the output shaft, i.e. arranging the lower end of the circumferential side wall away from the output shaft, even if the condensed liquid or water vapor condenses on the surface of the boss, it can flow along the inclined direction of the circumferential side wall of the boss to a position away from the output shaft, thereby reducing the risk of the condensed liquid entering the shaft hole of the indoor motor. At the same time, the inclined arrangement of the circumferential side wall of the boss is conducive to the drainage of condensed water, avoiding the accumulation of water around the motor, and further improving the waterproof effect.

[0013] In some embodiments of the present application, an air conditioner is provided, wherein the shielding piece includes a shielding cover, which is sleeved on the output shaft, the shielding cover is annular, the shielding cover circumferentially surrounds the outer periphery of the output shaft, and the shielding cover is arranged above the shaft hole; a flow guide part, which is annular, circumferentially surrounds the outer periphery of the shielding cover, and is arranged extending downward along the circumferential edge of the shielding cover.

[0014] Another technical solution in the above technical solution has the following advantages or beneficial effects: the shielding cover is sleeved on the output shaft and arranged in an annular shape, i.e. the shielding cover completely surrounds the output shaft and circumferentially surrounds the outside of the output shaft, thereby forming a direct barrier above the shaft hole, thereby preventing the condensed liquid or water vapor from directly entering the shaft hole. The flow guide part surrounds the outer periphery of the shielding cover and extends downward along the circumferential edge of the shielding cover, thereby forming a downwardly extending annular structure. In this way, even if the condensed liquid flows along the shielding cover, it will not directly drop into the shaft hole, but will be guided to the periphery by the flow guide part, thereby reducing the risk of the condensed liquid entering the interior of the motor. Moreover, the downwardly extending flow guide part can also avoid the accumulation of water droplets on the edge of the shielding cover, reduce water retention, and improve the waterproof performance.

[0015] In some embodiments of the present application, an air conditioner is provided, wherein a top surface of the flow guide part is provided with a flow guide surface, and the flow guide surface is arranged to be inclined away from an axis of the output shaft in a direction from top to bottom.

[0016] Another technical solution in the above technical solution has the following advantages or beneficial effects: the inclined flow guide surface can guide the condensed water to flow away from the output shaft, avoiding the condensed liquid flowing to the middle shaft hole, thereby reducing the risk of the condensed liquid penetrating directly along the output shaft to the inside of the indoor motor, and effectively reducing the risk of water accumulation around the shielding part or the indoor motor. Moreover, the inclined flow guide surface can also accelerate the discharge of the condensed liquid by gravity. Compared with horizontal or vertical design, the inclined flow guide surface is more conducive to the rapid discharge of condensed water, reducing water droplet accumulation.

[0017] In some embodiments of the present application, an air conditioner is provided, wherein a bottom wall of the air duct shell part is provided with a mounting opening; the indoor fan assembly further comprises a sealing sleeve, the sealing sleeve is sleeved on the top of the indoor motor and the outside of the output shaft, and the sealing sleeve is abutted between the bottom wall of the air duct shell part and the top of the indoor motor to seal the gap between the mounting opening and the indoor motor.

[0018] Another technical solution in the above technical solution has the following advantages or beneficial effects: by sleeving the sealing sleeve on the top of the indoor motor, when the indoor motor is installed with the air duct shell part, the sealing sleeve can be abutted between the air duct shell part and the indoor motor. In this way, the sealing sleeve can seal the gap between the mounting opening of the air duct shell part and the indoor motor. Even if the bottom of the air duct shell part accumulates condensed liquid, the sealing sleeve can effectively prevent the condensed liquid from penetrating directly to the indoor motor below through the gap, improving the overall waterproof performance.

[0019] In some embodiments of the present application, an air conditioner is provided, wherein the sealing sleeve is provided with a first enclosing part protruding towards one side of the shielding part, and the first enclosing part is arranged around the circumferential side of the output shaft; and the shielding part covers above the first enclosing part.

[0020] Another technical solution in the above technical solution has the following advantages or beneficial effects: the first enclosing part is protrusively arranged around the circumferential side of the output shaft, thereby forming an additional barrier around the output shaft, making it more difficult for the condensed water to penetrate into the surrounding area of the output shaft, further reducing the risk of the condensed water entering the inside of the motor. Moreover, since the shielding part covers above the first enclosing part, the shielding part can block the condensed liquid above from flowing directly downward to the shaft hole. In combination with the design of the first enclosing part, the condensed liquid around the circumferential side can be further blocked from flowing to the shaft hole. The shielding part and the first enclosing part form a double waterproof structure for the shaft hole, reducing the risk of the condensed liquid penetrating into the inside of the indoor motor.

[0021] In some embodiments of the present application, an air conditioner is provided, wherein the bottom wall of the air duct shell is further provided with a second enclosing portion, the second enclosing portion is arranged around the circumferential edge of the mounting opening and is arranged in a downward protruding manner relative to the bottom wall of the air duct shell; the top portion of the sealing sleeve is provided with a sealing portion, the lower end of the sealing portion is mounted on the inner side of the second enclosing portion to seal the gap between the second enclosing portion and the mounting opening.

[0022] Another technical solution in the above technical solution has the following advantages or beneficial effects: by arranging the second enclosing portion in a downward protruding manner on the bottom wall of the air duct shell, the circumferential edge of the mounting opening forms a downward extending barrier, and the sealing portion is mounted on the inner side of the second enclosing portion, which can further fill and close the gap between the enclosing portion and the mounting opening, thereby enhancing the sealing effect and effectively preventing the condensate from penetrating into the indoor motor, improving the waterproof capability of the air conditioning unit.

[0023] In some embodiments of the present application, an air conditioner is provided, wherein the bottom wall of the air duct shell is further provided with a surrounding plate, the surrounding plate is arranged in a downward protruding manner from the bottom wall of the air duct shell, and the surrounding plate is arranged around the circumferential side of the motor.

[0024] Another technical solution in the above technical solution has the following advantages or beneficial effects: by arranging the surrounding plate in a downward protruding manner around the circumferential side of the motor, a physical barrier can be formed to block the condensate from flowing along the bottom wall of the air duct shell to the motor, effectively reducing the risk of water entering the motor. Moreover, the sealing sleeve is arranged at the upper end of the motor, the first enclosing portion is arranged at the upper end of the sealing sleeve, and the second enclosing portion is arranged in a downward protruding manner on the bottom wall of the air duct shell, thereby forming a multiple waterproof structure to prevent the condensate from eroding the indoor motor from various directions such as the upper end of the indoor motor and the circumferential side of the indoor motor, so that the indoor motor can be in a dry environment, further improving the overall waterproof performance.

[0025] In some embodiments of the present application, an air conditioner is provided, wherein the indoor fan assembly further comprises a water pan, the water pan is arranged below the air duct shell, the bottom wall of the water pan is provided with a mounting ring and a separation ring in a upward protruding manner, the separation ring is arranged on the outer side of the mounting ring in a spaced manner; the indoor motor is mounted on the mounting ring; the surrounding plate is arranged above the separation ring and on the outer side of the separation ring.

[0026] Another technical solution in the above technical solution has the following advantages or beneficial effects: wherein the mounting ring can provide the indoor motor with a fixed position arranged in the water pan, and the protruding mounting ring can avoid the condensate at the bottom of the water pan directly contacting the indoor motor. The isolation ring can form a waterproof barrier at the bottom of the water pan, thereby blocking the condensate at the bottom of the water pan from directly flowing to the mounting position of the indoor motor. Moreover, the surrounding plate is arranged above the isolation ring and located outside the isolation ring, so that the condensate on the surrounding plate can fall outside the isolation ring, rather than directly falling to the mounting position of the indoor motor. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0028] Figure 1 A schematic view of an air conditioner according to an embodiment of the present application;

[0029] Figure 2 A schematic view of an indoor fan assembly according to an embodiment of the present application; Figure 1

[0030] A schematic view of an indoor motor according to an embodiment of the present application; Figure 3 Figure 1 A schematic view of an air conditioner according to an embodiment of the present application;

[0031] Figure 4 Figure 3 An exploded view of an air conditioner according to an embodiment of the present application;

[0032] Figure 5 A sectional view of an air conditioner according to an embodiment of the present application; Figure 3

[0033] A partial enlarged view of an air conditioner according to an embodiment of the present application; Figure 6 Figure 5 A schematic view of an indoor fan wheel according to an embodiment of the present application;

[0034] Figure 7 Figure 4 A schematic view of an indoor motor according to an embodiment of the present application;

[0035] Figure 8 A sectional view of an air conditioner according to an embodiment of the present application; Figure 4

[0036] A schematic view of an air conditioner according to an embodiment of the present application; Figure 9 Figure 8 A schematic view of an air conditioner according to an embodiment of the present application;

[0037] Figure 10 Figure 4 A schematic view of an air conditioner according to an embodiment of the present application;

[0038] Figure 11 A schematic view of an air conditioner according to an embodiment of the present application; Figure 10

[0039] ​​​​​​​Figure 12 is a local enlarged view of B in Fig. Figure 5 is a local enlarged view of B in Fig.

[0040] Figure 13 is a local enlarged view of B in Fig. Figure 4 is a schematic view of the water pan in Fig.

[0041] In the drawings, the correspondence between the reference signs and the component names is as follows:

[0042] 1, cabinet; 101, accommodation space; 110, first sub-space; 120, second sub-space; 130, third sub-space;

[0043] 21, compressor; 22, outdoor heat exchanger; 23, indoor heat exchanger; 24, outdoor fan assembly;

[0044] 3, indoor fan assembly; 301, air outlet; 302, shaft hole; 303, mounting space; 304, opening; 305, mounting port;

[0045] 31, air duct shell; 311, second enclosing part; 312, enclosing plate; 313, third enclosing part; 32, indoor fan wheel; 321, lower end cover; 3211, bottom plate; 3212, boss; 32121, top wall; 32122, circumferential wall; 33, indoor motor; 311, output shaft;

[0046] 34, shielding piece; 341, shielding cover; 342, flow guiding part; 3421, flow guiding surface;

[0047] 35, sealing sleeve; 351, first enclosing part; 352, sealing part; 3521, first step part; 3522, second step part;

[0048] 36, water pan; 361, mounting ring; 362, isolation ring. DETAILED DESCRIPTION

[0049] The utility model provides a kind of air conditioner, to make the purpose, technical scheme and effect of the utility model more clear, definite, the following referring to drawing and taking example to further detail the utility model.It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the protection scope of the utility model.

[0050] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model.

[0051] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection or can communicate with each other;It can be direct connection, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements.For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0052] The air conditioner in the embodiment of the application can be a vertical air conditioner. The improved technical scheme of the air conditioner of the embodiment of the application is described in detail below taking the vertical air conditioner as an example.

[0053] Figure 1 It is a schematic view of the air conditioner of an embodiment of the application.

[0054] As shown in Figure 1 , in some embodiments, the air conditioner can include a casing 1. The casing 1 can be configured as the shell of the air conditioner. The casing 1 can be provided with a containing space 101. The casing 1 can adopt a hollow structure such as a cuboid. It should be noted that the casing 1 can form the shell outside the air conditioner. The casing 1 can adopt a hollow shell structure of other shapes.

[0055] Figure 2 It is an internal schematic view in Figure 1 ; Figure 3 It is a schematic view of the indoor fan assembly in Figure 1 .

[0056] As shown in Figure 2 , in some embodiments, the air conditioner can include a refrigerant circulation loop. The refrigerant circulation loop can include a compressor 21, an outdoor heat exchanger 22 and an indoor heat exchanger 23 connected in series. The refrigerant circulates and flows in the refrigerant circulation loop composed of the compressor 21, the outdoor heat exchanger 22 and the indoor heat exchanger 23. During the refrigerant circulation process, the outdoor heat exchanger 22 and the indoor heat exchanger 23 can be used as condensers and evaporators respectively, so that the refrigerant evaporates and absorbs heat in the evaporator and condenses and releases heat in the condenser, thereby performing the refrigeration cycle or the heating cycle of the air conditioner.

[0057] Specifically, during the refrigeration cycle, the outdoor heat exchanger 22 can be used as a condenser, and the indoor heat exchanger 23 can be used as an evaporator. During the heating cycle, the outdoor heat exchanger 22 can be used as an evaporator, and the indoor heat exchanger 23 can be used as a condenser.

[0058] It should be noted that both the refrigeration cycle and the heating cycle include a series of processes involving compression, condensation, expansion, and evaporation, and supply refrigerant to the air that has been adjusted and heat exchanged.

[0059] The compressor 21 is used to compress the refrigerant gas and discharge the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser.

[0060] The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0061] The evaporator evaporates the expanded refrigerant and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor 21. The evaporator can achieve a refrigeration effect by exchanging heat with the surrounding environment using the latent heat of evaporation of the refrigerant.

[0062] Throughout the cycle, the air conditioner can adjust the temperature of the indoor space, improve the comfort of the indoor space, and improve the user's experience.

[0063] As shown in FIG. 1, Figure 2 In some embodiments, the air conditioner can include an outdoor fan assembly 24. The outdoor fan assembly 24 can be arranged opposite the outdoor heat exchanger 22. The outdoor fan assembly 24 can be used to introduce outdoor air into the inside of the casing, exchange heat with the outdoor heat exchanger 22, and form a heat exchange airflow.

[0064] For example, during the refrigeration cycle, the outdoor heat exchanger 22 acts as a condenser, and the outdoor fan assembly 24 can extract external air and blow it towards the outdoor heat exchanger 22 to dissipate heat from the outdoor heat exchanger 22, thereby reducing the temperature of the outdoor heat exchanger 22. During the heating cycle, the outdoor heat exchanger 22 acts as an evaporator, and the outdoor fan assembly 24 can extract external air and blow it towards the outdoor heat exchanger 22 to warm up the outdoor heat exchanger 22, thereby increasing the temperature of the outdoor heat exchanger 22.

[0065] As shown in FIG. 1, Figure 3 In some embodiments, the air conditioner can include an indoor fan assembly 4. The indoor fan assembly 4 can be arranged opposite the indoor heat exchanger 23. The indoor fan assembly 4 can be used to introduce indoor air into the inside of the casing, exchange heat with the indoor heat exchanger 23, and form a heat exchange airflow.

[0066] For example, during the refrigeration cycle, the indoor heat exchanger 23 acts as an evaporator, and the indoor fan assembly 4 can extract indoor air outside the casing, blow it towards the indoor heat exchanger 23, exchange heat with the indoor heat exchanger 23, reduce the temperature of the air flowing through the indoor heat exchanger 23, and blow the air back into the room to reduce the temperature of the indoor air.

[0067] For example, during the heating cycle, the indoor heat exchanger 23 acts as a condenser, and the outdoor fan assembly 24 can draw indoor air from outside the casing and blow it towards the indoor heat exchanger 23 to exchange heat with it, raising the temperature of the air flowing through the indoor heat exchanger 23, and then blowing the heated air back into the room to raise the indoor air temperature.

[0068] like Figure 2 As shown, in some embodiments, the compressor 21, outdoor heat exchanger 22, outdoor fan assembly 24, indoor heat exchanger 23, and indoor fan assembly 4 can be respectively arranged in the receiving space inside the casing. In this way, the casing can cover and protect them, preventing the erosion of foreign objects or the impact of external forces from causing structural damage, thereby improving the structural reliability of the air conditioner and ensuring that the air conditioner can work normally.

[0069] In some embodiments, the internal accommodating space 101 of the casing 1 may include three sub-spaces. These three sub-spaces are, from bottom to top, a first sub-space 110, a second sub-space 120, and a third sub-space 130. 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 24 and the indoor fan assembly 3 may be disposed in the third sub-space 130. Thus, by using three layers of sub-spaces from bottom to top, the compressor 21, outdoor heat exchanger 22, outdoor fan assembly 24, indoor heat exchanger 23, and indoor fan assembly 3 can be distributed at different heights within the casing 1, which helps to increase the overall height of the air conditioner, reduce its width and thickness, and minimize the space occupied by the air conditioner in the usage area.

[0070] like Figure 3 As shown, in some embodiments, the indoor fan assembly 3 may include a duct housing 31. The duct housing 31 may be disposed inside the housing. The duct housing 31 may be provided with an air outlet 301 so that air that has entered the air conditioner and exchanged heat with the indoor air can be delivered to the indoor air through the air outlet 301 of the indoor duct assembly.

[0071] like Figure 3 As shown, in some embodiments, the indoor fan assembly 3 may include an indoor impeller 32. The indoor impeller 32 is rotatably disposed within the duct housing 31. When the indoor impeller 32 rotates, the air conditioner can draw air from the room, which flows through the indoor heat exchanger 23 for heat exchange, and then is delivered to the outside through the air outlet 301 of the duct housing 31.

[0072] In some embodiments, the indoor impeller 32 may be configured as a cross-flow impeller.

[0073] Figure 4 for Figure 3 An exploded image.

[0074] like Figure 4 As shown, in some embodiments, the indoor fan 32 can be arranged along the height direction of the air conditioner. The upper end of the indoor fan 32 can be rotatably connected to the upper end of the duct housing 31. The lower end of the indoor fan 32 can be rotatably connected to the lower end of the duct housing 31.

[0075] like Figure 4 As shown, in some embodiments, the indoor heat exchange system may include an indoor motor 33. The indoor motor 33 may be used to drive the indoor fan wheel 32 to rotate.

[0076] like Figure 4 As shown, in some embodiments, the lower end of the indoor fan 32 is provided with a lower end cover 321. The lower end cover 321 may be provided with a rotatable connection hole. The indoor motor 33 can be connected to the lower end cover 321 of the indoor fan 32 through the rotatable connection hole, thereby driving the indoor fan 32 to rotate.

[0077] Figure 5 for Figure 3 A cross-sectional view.

[0078] like Figure 5 As shown, in some embodiments, the indoor motor 33 may be located at the bottom of the duct housing 31. The top of the indoor motor 33 may be provided with an output shaft 311 and a shaft hole 302. The output shaft 311 may extend upward through the shaft hole 302. The output shaft 311 may extend into the duct housing 31 and be connected to the lower end cover 321 for transmission.

[0079] Figure 6 for Figure 5 A magnified view of part A.

[0080] like Figure 6 As shown, in some embodiments, the indoor fan assembly 3 may include a shield 34. The shield 34 may be sleeved on the output shaft 311. The shield 34 may be circumferentially arranged around the outer periphery of the output shaft 311. The shield 34 may shield the area above the shaft hole 302.

[0081] Since the indoor motor 33 is located at the bottom of the indoor impeller 32, condensate can flow downwards along the indoor impeller 32 or the output shaft 311 to the motor located below, and enter the indoor motor 33 through the shaft hole 302, causing the indoor motor 33 to become damp or rusty, thus affecting its operation. By installing a shielding member 34 on the output shaft 311 of the indoor motor 33, the shielding member 34 extends circumferentially along the output shaft 311, thereby blocking the condensate above and preventing the condensate from flowing directly along the output shaft 311 into the shaft hole 302 below.

[0082] Figure 7 for Figure 4A schematic diagram of the indoor fan rotor 32.

[0083] like Figure 7 As shown, in some embodiments, the bottom surface of the lower end cover 321 may have an upwardly recessed mounting space 303. The shielding member 34 may be disposed within the mounting space 303. By forming an upwardly recessed groove inside the lower end cover 321 and installing the shielding member 34 within the mounting space 303, the vertical space of the indoor fan wheel 32 can be effectively utilized.

[0084] In existing technologies, the drive motor is primarily positioned above the cross-flow indoor fan wheel 32. However, this increases the vertical installation space 303 required for the indoor fan wheel 32, resulting in a larger unit size. This not only increases manufacturing costs but also reduces the amount of space that can be packed during transport. While installing the drive motor at the bottom of the cross-flow duct reduces the amount of internal space occupied, during the air conditioning process, moisture in the air easily condenses inside the duct housing 31, forming condensate. This condensate may drip along the airflow direction, and especially when the motor is installed at the bottom of the duct, it can easily accumulate and seep into the motor, causing it to rust.

[0085] In the technical solution of this application, by creating an upwardly recessed mounting space 303 on the lower end cover 321 of the indoor fan 32, the shielding member 34 can be placed within the mounting space 303. This eliminates the need to reserve additional space for installing waterproof components on the indoor fan 32. In the vertical direction of the air conditioner, the mounting position of the shielding member 34 overlaps with the lower end mounting space 303 of the indoor fan 32, thereby reducing the space occupied inside the air conditioner and making its installation structure more compact. Furthermore, the shielding member 34 is fitted onto the output shaft 311 and extends circumferentially towards the output shaft 311, forming a physical barrier above the shaft hole 302 and shielding the shaft hole 302 below. This prevents condensate from directly entering the drive motor through the shaft hole 302, thus avoiding the risk of the drive motor becoming damp, rusted, or short-circuited, and providing excellent waterproofing.

[0086] like Figure 7 As shown, in some embodiments, the lower end cover 321 may include a base plate 3121. The base plate 3121 may be disposed at the lower end of the indoor fan wheel 32. The base plate 3121 may have an opening 304. The opening 304 may communicate with the installation space 303. The output shaft 311 of the motor may extend into the installation space 303 through the opening 304, and the output shaft 311 of the motor may be connected to the base plate 3121 in a driving connection.

[0087] like Figure 7As shown, in some embodiments, the lower end cover 321 may include a boss 3122. The boss 3122 may be located at the opening 304 of the base plate 3121. The boss 3122 may extend upward from the opening 304 of the base plate 3121. An installation space 303 may be formed within the boss 3122. The top wall 31221 of the boss 3122 may be located above the opening 304. The indoor motor 33 may extend into the installation space 303 and be drivenly connected to the top wall 31221 of the boss 3122.

[0088] Specifically, the boss 3122 extends upward from the opening 304 of the base plate 3121 to form an installation space 303. This allows part of the indoor motor 33 and the shielding member 34 to be partially embedded inside the boss 3122, rather than completely occupying the bottom space of the air duct. This reduces the space occupied inside the air conditioner, making the structure more compact. Moreover, since the installation space 303 is surrounded by the boss 3122, even if the condensate flows along the bottom of the indoor fan, it is more easily blocked by the side wall of the boss 3122 or guided to other drainage paths, reducing the risk of it directly entering the indoor motor 33.

[0089] like Figure 6 and Figure 7 As shown, in some embodiments, the peripheral sidewall 31222 of the boss 3122 may be bent upward from the opening 304 of the base plate 3121. The peripheral sidewall 31222 of the boss 3122 may be connected between the base plate 3121 and the top wall 31221 of the boss 3122. In the top-to-bottom direction, the peripheral sidewall 31222 of the boss 3122 may be inclined toward an axis away from the output shaft 311.

[0090] The top wall 31221 of the boss 3122 is located above the peripheral wall 31222 of the boss 3122, and the lower part of the peripheral wall 31222 of the boss 3122 is connected to the opening 304 of the base plate 3121. By tilting the peripheral wall 31222 of the boss 3122 away from the output shaft 311 in the downward direction, that is, by setting the lower end of the peripheral wall 31222 away from the output shaft 311, even if condensate or water vapor condenses on the surface of the boss 3122, it can flow away from the output shaft 311 along the tilt direction of the peripheral wall 31222, thereby reducing the risk of condensate entering the shaft hole 302 of the indoor motor 33. At the same time, the tilted setting of the peripheral wall 31222 of the boss 3122 facilitates the drainage of condensate, avoids water accumulation around the motor, and further improves the waterproof effect.

[0091] In some other embodiments, the peripheral sidewall 31222 of the boss 3122 may be arranged vertically downward. Specifically, the peripheral sidewall 31222 of the boss 3122 may be cylindrical.

[0092] In some embodiments, the boss 3122 and the bottom plate 3121 can be integrally formed. In this way, compared with the way of separate splicing or additional support between the boss 3122 and the bottom plate 3121, the integrally formed structure improves the structural rigidity of the lower end plate, reduces the deformation caused by high-speed rotation of the indoor fan or external vibration, thereby facilitating the long-term stable operation of the motor and the fan.

[0093] In some embodiments, the shaft surface of the output shaft 311 can be concavely provided with a groove (not shown in the figure). The shielding piece 34 can be nested in the groove. In this way, the groove enables the shielding piece 34 to be more tightly installed on the output shaft 311, avoiding displacement or loosening due to high-speed operation or vibration of the indoor fan 32. Moreover, through the provision of the groove, the combination of the shielding piece 34 and the output shaft 311 can be more tightly, reducing the installation gap therebetween and preventing the condensate from penetrating into the interior of the indoor motor 33 along the output shaft 311.

[0094] In some embodiments, the shielding piece 34 can be made of silica gel, rubber or the like. In this way, the connection tightness between the shielding piece 34 and the output shaft 311 can be increased, further reducing the downward flow of the condensate from the gap between the output shaft 311 and the shielding piece 34 to the interior of the indoor motor 33.

[0095] Figure 8 For Figure 4 a schematic view of the indoor motor; Figure 9 For Figure 8 a sectional view thereof.

[0096] As Figure 8 and Figure 9 shown, in some embodiments, the shielding piece 34 can include a shielding cover 341. The shielding cover 341 can be sleeved on the output shaft 311. The shielding cover 341 can be annular. The shielding cover 341 can be circumferentially arranged around the outer periphery of the output shaft 311. The shielding cover 341 can be arranged above the shaft hole 302.

[0097] Among them, the shielding cover 341 is sleeved on the output shaft 311 and arranged in an annular shape, that is, the shielding cover 341 completely surrounds the output shaft 311 and circumferentially surrounds the outside of the output shaft 311, thereby forming a direct barrier above the shaft hole 302, thereby preventing the condensate or water vapor from directly entering the shaft hole 302. On the other hand, the annular shielding cover 341 circumferentially arranged around the output shaft 311 can not cause additional vibration or eccentricity of the indoor motor 33 due to unbalanced force when the fan rotates at high speed.

[0098] As Figure 6 and Figure 9As shown, in some embodiments, the shielding member 34 may include a flow guide 342. The flow guide 342 may be annular. The flow guide 342 may circumferentially surround the outer periphery of the shielding cover 341. The flow guide 342 may extend downward along the circumferential edge of the shielding cover 341.

[0099] Specifically, the guide portion 342 surrounds the outer periphery of the shield cover 341 and extends downward along the circumferential edge of the shield cover 341, thus forming a downwardly extending annular structure. In this way, even if condensate flows along the shield cover 341, it will not drip directly into the shaft hole 302, but will be guided to the periphery by the guide portion 342, thereby reducing the risk of condensate entering the motor. Furthermore, the downwardly extending guide portion 342 also prevents water droplets from accumulating at the edge of the shield cover 341, reducing moisture retention and improving waterproof performance.

[0100] like Figure 9 As shown, in some embodiments, the connection between the guide portion 342 and the shielding cover 341 can be an arc transition connection. This facilitates the condensate to flow sequentially along the shielding cover 341 and the guide portion 342 to a position away from the shaft hole 302, preventing condensate from accumulating on the shielding cover 341 or the guide portion 342.

[0101] like Figure 9 As shown, in some embodiments, the top surface of the guide portion 342 may be provided with a guide surface 3421. In the top-to-bottom direction, the guide surface 3421 may be inclined toward the axis away from the output shaft 311.

[0102] The inclined guide surface 3421 directs condensate away from the output shaft 311, preventing it from flowing into the central shaft hole 302. This reduces the risk of condensate seeping directly into the indoor motor 33 along the output shaft 311 and also effectively reduces condensate buildup around the shield 34 or the indoor motor 33, minimizing the risk of water accumulation. Furthermore, the inclined guide surface 3421 utilizes gravity to accelerate condensate drainage. Compared to horizontal or vertical designs, the inclined guide surface 3421 is more conducive to rapid condensate drainage, reducing water droplet accumulation.

[0103] like Figure 9 As shown, in some embodiments, the guide portion 342 may be conical in shape.

[0104] In some other embodiments, the entire flow guide 342 may be arranged vertically downwards. The flow guide 342 may be cylindrical.

[0105] like Figure 9As shown in FIG. 1, in some embodiments, the air duct shell 31 can be provided with a mounting opening 305. The mounting opening 305 can be used to mount the motor. In this embodiment, the mounting opening 305 can be formed in the bottom of the air duct shell 31. When mounted, the output shaft 311 of the indoor motor 33 can extend into the mounting space 303 through the mounting opening 305.

[0106] As shown in FIG. 1, in some embodiments, the indoor fan assembly 3 can include a sealing sleeve 35. The sealing sleeve 35 can be sleeved on the top of the indoor motor 33. The sealing sleeve 35 can be sleeved on the outside of the output shaft 311. The sealing sleeve 35 can be abutted between the bottom wall of the air duct shell 31 and the top of the indoor motor 33 to seal the gap between the mounting opening 305 of the air duct shell 31 and the indoor motor 33. Figure 6 Figure 9 In this embodiment, by sleeving the sealing sleeve 35 on the top of the indoor motor 33, when the indoor motor 33 is mounted with the air duct shell 31, the sealing sleeve 35 can be abutted between the air duct shell 31 and the indoor motor 33. In this way, the sealing sleeve 35 can seal the gap between the mounting opening 305 of the air duct shell 31 and the indoor motor 33. Even if the bottom of the air duct shell 31 accumulates condensate, the sealing sleeve 35 can effectively prevent the condensate from penetrating directly to the indoor motor 33 below through the gap, improving the overall waterproof performance.

[0107] In some embodiments, the sealing sleeve 35 can be made of elastic material, such as silicone, rubber or foam sealing material, which not only can provide better sealing effect, but also can absorb the vibration of the fan during operation, reduce the resonance phenomenon and reduce the noise.

[0108] As shown in FIG. 1, in some embodiments, the side of the sealing sleeve 35 facing the shielding piece 34 can be provided with a first surrounding portion 351. The first surrounding portion 351 can be arranged around the circumferential side of the output shaft 311. The shielding piece 34 can be covered above the first surrounding portion 351.

[0109] As shown in FIG. 1, in some embodiments, the side of the sealing sleeve 35 facing the shielding piece 34 can be provided with a first surrounding portion 351. The first surrounding portion 351 can be arranged around the circumferential side of the output shaft 311. The shielding piece 34 can be covered above the first surrounding portion 351. Figure 6 Figure 9 Specifically, the first surrounding portion 351 is arranged protruding around the circumferential side of the output shaft 311, thereby forming an additional barrier around the output shaft 311, making it more difficult for condensate to penetrate into the area around the output shaft 311, further reducing the risk of condensate entering the interior of the motor. Moreover, since the shielding piece 34 is covered above the first surrounding portion 351, the shielding piece 34 can block the condensate above from flowing directly downward to the shaft hole 302. In combination with the design of the first surrounding portion 351, the shielding piece 34 can further block the condensate on the circumferential side from flowing to the shaft hole 302. The shielding piece 34 and the first surrounding portion 351 form a double waterproof structure for the shaft hole 302, reducing the risk of condensate penetrating into the interior of the indoor motor 33.

[0110] ​​​

[0111] In some embodiments, the first enclosure portion 351 and the sealing sleeve 35 can be integrally formed.

[0112] like Figure 6 As shown, in some embodiments, the bottom wall of the duct housing 31 may be provided with a second enclosure portion 311. The second enclosure portion 311 may be provided around the peripheral edge of the mounting opening 305. The second enclosure portion 311 may be provided to protrude downward relative to the bottom wall of the duct housing 31. By providing the second enclosure portion 311 to protrude downward from the bottom wall of the duct housing 31, and by surrounding the second enclosure portion 311, a downwardly extending barrier can be formed at the peripheral edge of the mounting opening 305, further reducing the possibility of condensate entering the interior of the duct housing 31.

[0113] like Figure 6 and Figure 9 As shown, in some embodiments, the top of the sealing sleeve may be provided with a sealing portion 352. The lower end of the sealing portion 352 may be installed inside the second enclosure portion 311 to seal the gap between the second enclosure portion 311 and the mounting opening 305.

[0114] Thus, the sealing part 352 is installed on the inner side of the second enclosure part 311, which can further fill and seal the gap between the enclosure part and the mounting port 305, thereby enhancing the sealing effect and effectively preventing condensate from penetrating into the interior of the indoor motor 33, thus improving the overall waterproof capability of the air conditioner.

[0115] like Figure 8 and Figure 9 As shown, in some embodiments, the sealing portion 352 may be in the form of annular steps. The annular stepped sealing portion 352 is arranged circumferentially around the top of the sealing portion 352, so that each position of the circumferential edge of the mounting port 305 can be abutted and sealed with the sealing portion 352.

[0116] like Figure 6 and Figure 9 As shown, in some embodiments, the sealing portion 352 may include a first stepped portion 3521. The first stepped portion 3521 can extend into the air duct housing 31 through the mounting port 305. The circumferential outer surface of the first stepped portion 3521 can abut against the circumferential inner surface of the mounting port 305. In this way, the gap between the mounting port 305 and the upper end of the sealing sleeve can be further sealed, effectively preventing condensate in the air duct housing 31 from seeping downward into the motor through the mounting port 305.

[0117] like Figure 6 and Figure 9As shown in some embodiments, the sealing part 352 can include a second step part 3522. The second step part 3522 can be arranged below the first step part 3521. The diameter of the second step part 3522 can be greater than that of the first step part 3521. The second step part 3522 can be nested on the inner surface of the second enclosing part 311. In this way, the gap between the bottom of the air duct shell 31 and the lower end of the sealing sleeve can be further sealed, and in cooperation with the abutting sealing effect of the first step part 3521 and the mounting port 305, the sealing part 352 can more effectively block the condensate in the air duct shell 31 from penetrating into the motor through the mounting port 305.

[0118] As shown in some embodiments, the bottom wall of the air duct shell 31 can be provided with a third enclosing part 313. The third enclosing part 313 can be arranged around the peripheral edge of the mounting port 305. The third enclosing part 313 can be arranged protruding upward relative to the bottom wall of the air duct shell 31. The upper end of the sealing part 352 can be mounted on the inner side of the third enclosing part 313 to seal the gap between the third enclosing part 313 and the mounting port 305. Figure 6

[0119] Since the air duct shell 31 is in a low-temperature environment during operation or after the air conditioner stops cooling, water molecules in the air are likely to condense into condensate, which can penetrate along the edge of the mounting port 305 to the indoor motor 33 below. The first step part 3521 can be nested on the inner side of the third enclosing part 313. By protruding the third enclosing part 313 on the air duct shell 31, the outer side of the shaft hole 302 is provided with the first enclosing part 351, and the outer side of the first enclosing part 351 is provided with the third enclosing part 313, thereby forming a multi-layer waterproof structure, which can effectively block the condensate from entering the inside of the mounting port 305. In this way, the indoor motor 33 can be effectively protected from water.

[0120] Figure 10 For Figure 4 the bottom view of the air duct shell; Figure 11 For Figure 10 a perspective view of the air duct shell; Figure 12 For Figure 5 a partial enlarged view of B of the air duct shell.

[0121] As shown in some embodiments, the bottom wall of the air duct shell 31 can be provided with a third enclosing part 313. The third enclosing part 313 can be arranged around the peripheral edge of the mounting port 305. The third enclosing part 313 can be arranged protruding upward relative to the bottom wall of the air duct shell 31. The upper end of the sealing part 352 can be mounted on the inner side of the third enclosing part 313 to seal the gap between the third enclosing part 313 and the mounting port 305. Figure 10 Figure 11 As shown in some embodiments, the bottom wall of the air duct shell 31 can be provided with a third enclosing part 313. The third enclosing part 313 can be arranged around the peripheral edge of the mounting port 305. The third enclosing part 313 can be arranged protruding upward relative to the bottom wall of the air duct shell 31. The upper end of the sealing part 352 can be mounted on the inner side of the third enclosing part 313 to seal the gap between the third enclosing part 313 and the mounting port 305.

[0122] ​​Specifically, the surrounding plate 312 is arranged outside the second surrounding part 311, and is protruded downward and surrounds the side of the motor, so that a physical barrier is formed to prevent the condensed water from flowing along the bottom wall of the air duct shell 31 to the motor, thereby effectively reducing the risk of water entering the motor. Moreover, the sealing sleeve 35 is arranged at the upper end of the motor, the first surrounding part 351 is arranged at the upper end of the sealing sleeve 35, and the second surrounding part 311 is arranged downwardly protruding from the bottom wall of the air duct shell 31, thereby forming a multiple waterproof structure to prevent the condensed liquid from eroding the indoor motor 33 from various directions such as the upper end of the indoor motor 33 and the side of the indoor motor 33, so that the indoor motor 33 can be in a dry environment, and the overall waterproof performance is further improved.

[0123] In another aspect, the surrounding plate 312 surrounds the indoor motor 33 and can play a certain supporting and stabilizing role, reduce the displacement or looseness of the indoor motor 33 caused by vibration during operation, enhance the fixing effect, and improve the reliability of the indoor fan assembly 3.

[0124] As shown in Figure 12 , in some embodiments, the surrounding plate 312 can be protruded around part of the side of the motor. In this way, not only can it play a waterproof and protective role, but also it is beneficial to heat dissipation of the indoor motor 33.

[0125] As shown in Figure 3 and Figure 4 , in some embodiments, the indoor fan assembly 3 can further include a water collecting tray 36. The water collecting tray 36 can be arranged below the air duct shell 31. The indoor heat exchanger 23 can be mounted on the water collecting tray 36 and arranged adjacent to the air duct shell 31.

[0126] When the indoor heat exchanger 23 exchanges heat with indoor air and then delivers cold air to the indoor environment, water molecules in the air are likely to condense on the surface of the indoor heat exchanger 23 to form condensed water. The water collecting tray 36 can collect the condensed water to avoid the condensed water directly falling on other electrical elements in the air conditioner and causing safety problems.

[0127] As shown in Figure 3 and Figure 4 , in some embodiments, the bottom wall of the water collecting tray 36 can be upwardly protruded with a mounting ring 361. The indoor motor 33 can be mounted on the mounting ring 361. The mounting ring 361 can provide a fixed position for the indoor motor 33 inside the water collecting tray 36, and the protruded mounting ring 361 can avoid the condensed liquid at the bottom of the water collecting tray 36 directly contacting the indoor motor 33.

[0128] Figure 13 For Figure 4 , a schematic view of the water collecting tray.

[0129] As shown in Figure 12 andFigure 13 As shown, in some embodiments, the bottom wall of the water pan 36 can be upwardly convexly provided with a partition ring 362. The partition ring 362 can be spacedly arranged outside the circumferential side of the mounting ring 361. The surrounding plate 312 can be arranged above and outside the partition ring 362. In this way, the partition ring 362 can form a waterproof barrier at the bottom of the water pan 36, thereby preventing the condensed liquid at the bottom of the water pan 36 from directly flowing to the mounting position of the indoor motor 33. Moreover, in combination with the arrangement of the surrounding plate 312 above and outside the partition ring 362, the condensed liquid on the surrounding plate 312 can fall outside the partition ring 362, instead of directly falling to the mounting position of the indoor motor 33.

[0130] In this way, the indoor motor 33 is mounted below the indoor fan wheel 32, which can also avoid the direct contact of the condensed liquid with the indoor motor 33, thereby not only improving the installation compactness of the air conditioner, but also improving the overall waterproof performance of the indoor motor 33, and achieving the working stability and safety of the indoor fan assembly 3.

[0131] The above merely describes specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which shall be covered within the protection scope of the present application. Therefore, the scope of the present application is limited only by the appended claims.

Claims

1. An air conditioner characterized by comprising: The air conditioner comprises: a casing configured as an outer shell of the air conditioner; a receiving space provided in the casing; an indoor heat exchanger provided in the receiving space and configured to exchange heat with indoor air; an indoor fan assembly provided in the receiving space and arranged opposite to the indoor heat exchanger; the indoor fan assembly comprises: a duct casing provided in the casing; an indoor fan wheel rotatably provided in the duct casing and arranged along a height direction of the air conditioner; a lower end of the indoor fan wheel is provided with a lower end cover; an indoor motor provided at a bottom of the duct casing; a top of the indoor motor is provided with an output shaft and a shaft hole; the output shaft extends upward through the shaft hole and is connected to the lower end cover in a transmission mode; a shielding member sleeved on the output shaft and circumferentially arranged on an outer periphery of the output shaft to shield an upper portion of the shaft hole; wherein a bottom surface of the lower end cover is provided with an upwardly recessed mounting space, and the shielding member is arranged in the mounting space.

2. The air conditioner of claim 1, wherein the lower end cover comprises: a bottom plate provided at the lower end of the indoor fan wheel and provided with an opening; a boss provided at the opening of the bottom plate and extending upward from the opening of the bottom plate; the boss forms the mounting space therein, and the mounting space is in communication with the opening; a top wall of the boss is arranged above the opening, and the indoor motor is arranged in the mounting space and connected to the top wall of the boss in a transmission mode.

3. The air conditioner of claim 2, wherein a circumferential wall of the boss is bent upward from the opening of the bottom plate and connected between the bottom plate and the top wall of the boss; in a direction from top to bottom, the circumferential wall of the boss is arranged to be inclined away from an axis of the output shaft.

4. The air conditioner of claim 2, wherein the shielding member comprises: a shielding cover sleeved on the output shaft, the shielding cover is annular, and the shielding cover is circumferentially arranged on an outer periphery of the output shaft and arranged above the shaft hole; a flow guide portion, the flow guide portion is annular, and the flow guide portion is circumferentially arranged on an outer periphery of the shielding cover and extends downward along a circumferential edge of the shielding cover.

5. The air conditioner of claim 4, wherein a top surface of the flow guide portion is provided with a flow guide surface, and in a direction from top to bottom, the flow guide surface is arranged to be inclined away from an axis of the output shaft.

6. The air conditioner of claim 1, wherein a bottom wall of the duct casing is provided with a mounting opening; the indoor fan assembly further comprises a sealing sleeve sleeved on the top of the indoor motor and sleeved on an outer side of the output shaft, and the sealing sleeve is abutted between the bottom wall of the duct casing and the top of the indoor motor to seal a gap between the mounting opening and the indoor motor.

7. The air conditioner of claim 6, wherein a first enclosing portion is protrusively arranged on a side of the sealing sleeve facing the shielding member, and the first enclosing portion encloses a circumferential side of the output shaft. The shielding member covers the first surrounding part.

8. The air conditioner of claim 6, wherein The bottom wall of the air duct shell further has a second surrounding part, which is arranged around the circumferential edge of the mounting opening and is arranged protruding downward relative to the bottom wall of the air duct shell; The top of the sealing sleeve is provided with a sealing part, the lower end of which is mounted on the inner side of the second surrounding part to seal the gap between the second surrounding part and the mounting opening.

9. The air conditioner of claim 1, wherein The bottom wall of the air duct shell further has a surrounding plate, which is arranged protruding downward relative to the bottom wall of the air duct shell and is arranged around the circumferential side of the motor.

10. The air conditioner of claim 9, wherein The indoor fan assembly further includes a water collecting tray, which is arranged below the air duct shell, the bottom wall of the water collecting tray is arranged protruding upward and has a mounting ring and an isolation ring, the isolation ring is arranged spaced apart on the circumferential outer side of the mounting ring; The indoor motor is mounted on the mounting ring; The surrounding plate is arranged above and on the outer side of the isolation ring.

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