Hanging type air conditioner indoor unit

Abstract

The utility model provides a hanging type air conditioner indoor unit which comprises an indoor motor which is an outer rotor motor, and a first water pan which is arranged on the front side of a volute tongue air duct. The second water pan is arranged on the rear side of the volute tongue air duct; the drainage part is located on the side, away from the indoor fan, of the motor cavity. The first water pan is communicated with the drainage part, and water in the first water pan flows into the drainage part; the end, close to the drainage part, of the second water pan communicates with the drainage part, and water in the second water pan flows into the drainage part through the end, close to the drainage part, of the second water pan; and the bottom wall of the drainage part is provided with a drainage hole for draining water. The drainage part is located on the side, away from the volute tongue air duct, of the motor cavity, condensate water in the drainage part cannot flow to the indoor motor, and water is prevented from being splashed to the indoor motor; water in the second water pan can flow into the drainage part through the end, close to the drainage part, of the second water pan, the length of a drainage path can be reduced, and overflow of local positions in the drainage process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a wall-mounted air conditioner indoor unit. Background Art

[0002] The wall-mounted air conditioner indoor unit may include an indoor air inlet, an indoor air outlet, an indoor heat exchanger, and an indoor fan. The indoor fan drives air to enter the air conditioner indoor unit from the indoor air inlet to exchange heat with the indoor heat exchanger, and the heated or cooled air flows out of the air conditioner indoor unit through the indoor air outlet to cool or heat the environment.

[0003] The indoor fan may include an indoor fan and an indoor motor. The air conditioner indoor unit may include a base. A water receiving tray may be formed on the base. The water receiving tray may be used to receive the condensed water flowing down from the indoor heat exchanger. A drain hole may be provided on the base, and the drain hole may be connected to a drain pipe. The condensed water on the water receiving tray may be collected at the drain hole and discharged through the drain pipe.

[0004] Currently, due to the limitation of the fresh air module, the drain hole and the drain pipe are generally arranged on one side of the air conditioner indoor unit. And due to the influence of its overall structure, the drain hole is usually arranged on the side close to the indoor motor, or due to the limitation of the installation environment, the drain hole can only be arranged on one side of the air conditioner indoor unit and is arranged on the side close to the indoor motor; in the existing air conditioner indoor unit, the drain hole is usually arranged directly below the indoor motor, and when the water flows to the drain hole, it is easy to splash on the indoor motor, and when the indoor motor is powered on, it is easy to cause the indoor motor to burn out; when the indoor heat exchanger is inclined, the water receiving tray at the rear side of the air duct is easy to accumulate water at the end close to the indoor motor, resulting in mildew in the water receiving tray; the water receiving tray at the rear side of the air duct bypasses the water to the water receiving tray at the front side of the air duct and then flows to the drain hole, which will increase the drainage path of the water receiving tray at the rear part of the air duct, making the drainage path complex, and it is easy to overflow at some positions due to more water volume, and it will also make the drainage pressure of the water receiving tray at the front side of the air duct large, with more water flow, and it is easy to have the risk of overflow. Therefore, this application proposes a wall-mounted air conditioner indoor unit. Summary of the Invention

[0005] The utility model aims to solve at least one of the technical problems in the related art to a certain extent.

[0006] For this purpose, according to an embodiment of the present disclosure, a wall-mounted air conditioner indoor unit is proposed, including:

[0007] A main body, the length direction of the main body is from one side end of the main body to the other side end; the main body at least includes a first cavity located inside the main body;

[0008] The main body includes:

[0009] A housing, on which an indoor air inlet and an indoor air outlet are formed;

[0010] An indoor heat exchanger, disposed in the first cavity;

[0011] A base, on which a volute tongue air duct and a motor cavity are formed, and the volute tongue air duct and the motor cavity are arranged in sequence along the width direction of the main body;

[0012] An indoor fan, disposed in the first cavity and on the side of the indoor heat exchanger away from the indoor air inlet;

[0013] The indoor fan includes an indoor fan blade and an indoor motor; the indoor fan blade is disposed in the volute tongue air duct;

[0014] The indoor motor is an outer rotor motor, the outer rotor motor includes a stator and a rotor, the stator is fixedly disposed on the motor cavity, the rotor is wound around the outside of the stator along the circumferential direction of the stator, and the rotor is connected to the indoor fan blade;

[0015] The indoor motor drives the indoor fan blade to rotate so that air flows from the indoor air inlet to the indoor heat exchanger to exchange heat with the indoor heat exchanger, and the air after exchanging heat with the indoor heat exchanger flows through the volute tongue air duct and flows out of the casing from the indoor air outlet;

[0016] A first water receiving tray, disposed on the base and used for receiving the condensed water flowing down from the indoor heat exchanger, and the first water receiving tray is disposed on the front side of the volute tongue air duct;

[0017] A second water receiving tray, disposed on the base and used for receiving the condensed water flowing down from the indoor heat exchanger, and the second water receiving tray is disposed on the rear side of the volute tongue air duct;

[0018] A drainage part, formed on the base and on the side of the motor cavity away from the indoor fan blade;

[0019] The first water receiving tray is communicated with the drainage part, and the water in the first water receiving tray flows into the drainage part;

[0020] One end of the second water receiving tray close to the drainage part is communicated with the drainage part, and the water in the second water receiving tray flows into the drainage part through the end of the second water receiving tray close to the drainage part;

[0021] A drainage hole for draining water is provided on the bottom wall of the drainage part.

[0022] When the indoor motor is an outer rotor motor, the drainage part is arranged on the side of the motor cavity away from the indoor fan. When water accumulates in the drainage part, the condensed water in the drainage part will not flow to the indoor motor, preventing water from splashing onto the indoor motor and avoiding the splashed water from entering the stator coil and other places through the gap between the rotor and the stator. This can prevent the indoor motor from being burned out after being powered on, ensuring the normal operation and lifespan of the indoor motor. The end of the second water receiving tray close to the drainage part is connected to the drainage part, enabling the water in the second water receiving tray to flow into the drainage part through the end close to the drainage part. This can reduce the drainage path length, prevent local water overflow during drainage, and reduce the amount of water drained from the second water receiving tray into the first water receiving tray, alleviating the drainage pressure on the first water receiving tray and preventing overflow at the first water receiving tray.

[0023] According to an embodiment of the present disclosure, the main body includes:

[0024] A fresh air volute, arranged inside the casing and on the side of the indoor fan away from the indoor motor. A fresh air cavity is formed inside the fresh air volute, and the fresh air cavity is in communication with the outside.

[0025] A fresh air fan, arranged inside the fresh air cavity;

[0026] A fresh air motor, connected to the fresh air fan;

[0027] The fresh air motor drives the fresh air fan to rotate so that outdoor air flows into the fresh air cavity and then into the room.

[0028] Setting the fresh air volute, fresh air fan, and fresh air motor can introduce outdoor fresh air into the room. Arranging the fresh air volute and the drainage part on both sides of the indoor fan can adapt to the layout of the air conditioner indoor unit and avoid interference between the installation of the fresh air volute and the drainage part.

[0029] According to an embodiment of the present disclosure, the main body includes:

[0030] A first communication part, formed on the base and located behind the drainage part;

[0031] The end of the second water receiving tray close to the drainage part is in communication with the drainage part through the first communication part. Setting the first communication part can directly connect the second water receiving tray and the drainage part, reducing the drainage path length of the second drainage tray and the drainage pressure on the first water receiving tray.

[0032] According to an embodiment of the present disclosure, a first guiding part is formed on the base, and the first guiding part is arranged on the side of the indoor fan away from the motor cavity;

[0033] Both ends of the first water receiving tray along the length direction of the main body are respectively in communication with the drainage part and the first guiding part;

[0034] In the length direction of the main body, one end of the second water receiving tray away from the drainage part communicates with the first diversion part.

[0035] According to an embodiment of the present disclosure, a second diversion part is formed on the base, and the second diversion part is located at the rear side of the base;

[0036] Along the length direction of the main body, the second diversion part is located on the side of the first diversion part close to the drainage part, and both ends of the second diversion part communicate with the first communication part and the first diversion part respectively, facilitating the water in the second diversion part to flow to the drainage part from both ends and increasing the drainage efficiency of the second drainage part.

[0037] According to an embodiment of the present disclosure, a second through hole is provided on the side wall of the first communication part, and the second diversion part and the first communication part communicate through the second through hole, facilitating the communication between the first communication part and the second diversion part.

[0038] According to an embodiment of the present disclosure, a second diversion part is formed on the base, the second diversion part is located at the rear side of the base, and one end of the second diversion part communicates with the first diversion part. Along the length direction of the main body, the second diversion part is located on the side of the first diversion part close to the drainage part.

[0039] According to an embodiment of the present disclosure, the second diversion part is inclined with respect to the length direction of the main body, and the end of the second diversion part connecting the first diversion part is the end of the second diversion part close to the bottom end of the main body.

[0040] According to an embodiment of the present disclosure, the included angle between the extending direction of the second diversion part and the length direction of the main body is a first angle α1, and α1≥2°.

[0041] According to an embodiment of the present disclosure, a wall-mounted air conditioner indoor unit is further provided, including:

[0042] A main body, the length direction of the main body is from one side end of the main body to the other side end; the main body at least includes a first cavity located inside the main body;

[0043] The main body includes:

[0044] A housing, on which an indoor air inlet and an indoor air outlet are formed;

[0045] An indoor heat exchanger, arranged in the first cavity;

[0046] A base, on which a volute tongue air duct and a motor cavity are formed, and the volute tongue air duct and the motor cavity are arranged in sequence along the width direction of the main body;

[0047] An indoor fan is disposed in the first cavity and on the side of the indoor heat exchanger away from the indoor air inlet; the indoor fan includes an indoor fan and an indoor motor, the indoor fan is disposed in the volute tongue air duct, and the indoor motor is disposed in the motor cavity;

[0048] The indoor motor drives the indoor fan to rotate so that air flows from the indoor air inlet to the indoor heat exchanger to exchange heat with the indoor heat exchanger, and the air that has exchanged heat with the indoor heat exchanger flows through the volute tongue air duct and out of the casing through the indoor air outlet;

[0049] A fresh air volute is disposed in the casing and on the side of the indoor fan away from the indoor motor. A fresh air cavity is formed in the fresh air volute, and the fresh air cavity communicates with the outside;

[0050] A fresh air fan is disposed in the fresh air cavity;

[0051] A fresh air motor is connected to the fresh air fan;

[0052] The fresh air motor drives the fresh air fan to rotate so that outdoor air flows into the fresh air cavity and then into the room;

[0053] A first water receiving tray is disposed on the base and is used to receive the condensed water flowing down from the indoor heat exchanger. The first water receiving tray is disposed on the front side of the volute tongue air duct;

[0054] A second water receiving tray is disposed on the base and is used to receive the condensed water flowing down from the indoor heat exchanger. The second water receiving tray is disposed on the rear side of the volute tongue air duct;

[0055] A drainage part is formed on the base and on the side of the motor cavity away from the indoor fan;

[0056] The first water receiving tray communicates with the drainage part, and the water in the first water receiving tray flows into the drainage part;

[0057] One end of the second water receiving tray close to the drainage part communicates with the drainage part, and the water in the second water receiving tray flows into the drainage part through the end of the second water receiving tray close to the drainage part;

[0058] A drainage hole for drainage is provided on the bottom wall of the drainage part. Description of the Drawings

[0059] Figure 1 is a front view of an air conditioner indoor unit according to an embodiment of the present application;

[0060] Figure 2 is a perspective view of an air conditioner indoor unit according to an embodiment of the present application;

[0061] Figure 3 is a perspective view of the partial structure of an air conditioner indoor unit according to an embodiment of the present application;

[0062] Figure 4 is a cross-sectional view of an air conditioner indoor unit according to an embodiment of the present application;

[0063] Figure 5 is an exploded view of the partial structure of an air conditioner indoor unit according to an embodiment of the present application;

[0064] Figure 6 is a partial structure diagram of an air conditioner indoor unit according to an embodiment of the present application;

[0065] Figure 7 is a structure diagram of an indoor fan according to an embodiment of the present application;

[0066] Figure 8 is a cross-sectional view of an indoor fan according to an embodiment of the present application;

[0067] Figure 9 is a structure diagram of a base according to an embodiment of the present application;

[0068] Figure 10 is a cross-sectional view of a base according to an embodiment of the present application;

[0069] Figure 11 is a cross-sectional view of an air conditioner indoor unit according to an embodiment of the present application;

[0070] Figure 12 is a rear view of a base according to an embodiment of the present application;

[0071] Figure 13 is Figure 12 a schematic diagram of the structure at A in

[0072] Figure 14 is a partial structure diagram of a base according to an embodiment of the present application;

[0073] Figure 15 is a structure diagram of a base according to an embodiment of the present application;

[0074] Figure 16 is Figure 15 a schematic diagram of the structure at B in

[0075] Figures 17 - 18 is a cross-sectional view of a base according to an embodiment of the present application;

[0076] Figure 19 is Figure 18 a schematic diagram of the structure at C in

[0077] Figure 20 is a cross-sectional view of a base according to an embodiment of the present application;

[0078] Figure 21 is the structural diagram of the base according to an embodiment of the present application;

[0079] Figure 22 is Figure 21 the schematic structural diagram of the position D in;

[0080] Figure 23 is the cross-sectional view of the base according to an embodiment of the present application;

[0081] Figure 24 is the rear view of the base according to an embodiment of the present application;

[0082] Figure 25 is the structural diagram of the base according to an embodiment of the present application;

[0083] Figure 26 is Figure 25 the schematic structural diagram of the position E in;

[0084] Figure 27 is the structural diagram of the base according to an embodiment of the present application;

[0085] Figure 28 is Figure 27 the schematic structural diagram of the position F in;

[0086] Figure 29 is the cross-sectional view of the base according to an embodiment of the present application;

[0087] Figure 30 is the rear view of the base according to an embodiment of the present application;

[0088] Figure 31 is Figure 30 the schematic structural diagram of the position G in;

[0089] Figure 32 is the rear view of the base according to an embodiment of the present application;

[0090] Figure 33 is Figure 32 the schematic structural diagram of the position H in;

[0091] Figure 34 is the rear view of the base according to an embodiment of the present application;

[0092] Figure 35 is Figure 34 the schematic structural diagram of the position I in;

[0093] Figure 36 is the structural diagram of the base according to an embodiment of the present application;

[0094] Figure 37 is Figure 36 the schematic structural diagram of the position J in;

[0095] Figure 38 is a cross-sectional view of the base according to an embodiment of the present application;

[0096] Figures 39 - 40 is a partial structural view of the base according to an embodiment of the present application;

[0097] Figure 41 is a cross-sectional view of the base according to an embodiment of the present application;

[0098] Figure 42 is Figure 41 a schematic structural view of the position K in

[0099] Figures 43 - 44 is a partial cross-sectional view of the base according to an embodiment of the present application;

[0100] Figure 45 is a partial structural view of the base according to an embodiment of the present application.

[0101] In each of the above figures: main body 100; first chamber 101; housing 1; indoor air inlet 111; indoor air outlet 112; indoor heat exchanger 21; first-stage heat exchanger 211; second-stage heat exchanger 212; third-stage heat exchanger 213; indoor fan 22; indoor fan blade 221; indoor motor 222; stator 2221; rotor 2222; base 3; base body 301; second guide plate 302; volute tongue air duct 31; motor chamber 32; water receiving tray 33; first water receiving tray 331; third through hole 3311; rear wall of the first water receiving tray 3312; first rear wall 33121; first end of the rear wall 331211; second rear wall 33122; second water receiving tray 332; first through hole 3321; drainage part 34; drainage hole 341; front volute tongue 351; rear volute tongue 352; first end face of the volute tongue air duct 353; first guide part 361; first communication part 362; second through hole 3621; notch space 363; first partition 364; first water retaining rib 365; second water retaining rib 366; overflow groove 367; overflow groove notch 368; fourth through hole 3681; second guide part 37; first sub-guide part 371; second sub-guide part 372; fresh air volute 6. Detailed Embodiments

[0102] To make the objectives and embodiments of the present application clearer, the following will clearly and completely describe the exemplary embodiments of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part, rather than all, of the embodiments of the present application.

[0103] It should be noted that the brief description of the terms in the present application is only for facilitating the understanding of the following described embodiments, rather than intending to limit the embodiments of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and common meanings.

[0104] In this application, terms such as "first", "second", "third", etc. in the description, claims and the above-mentioned drawings are used to distinguish similar or like objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that such terms used may be interchangeable under appropriate circumstances.

[0105] The terms "comprising" and "having" and any variations thereof are intended to cover but not exclusively include. For example, a product or device comprising a series of components does not necessarily have to be limited to all the components clearly listed, but may include other components not clearly listed or inherent to these products or devices.

[0106] This application proposes a wall-mounted air conditioner indoor unit, which will be described below with reference to the drawings.

[0107] In this application, the wall-mounted air conditioner indoor unit can be a component of an air conditioner. The air conditioner can include an air conditioner outdoor unit.

[0108] In this application, the wall-mounted air conditioner indoor unit can be hung on a wall or other support.

[0109] In this application, referring to Figures 1 - 3 , the wall-mounted air conditioner indoor unit can include a main body 100.

[0110] In this application, the main body 100 can have a top and a bottom. The direction from the bottom of the main body to the top of the main body can be the height direction of the main body.

[0111] In this application, the direction from one end of the main body to the other end of the main body can be the length direction of the main body.

[0112] In this application, the main body can have a front side and a rear side that are oppositely arranged. The side of the main body facing the user can be the front side of the main body. The direction from the front side of the main body to the rear side of the main body can be the front-rear direction of the main body.

[0113] In this application, the height direction, length direction and front-rear direction of the main body can be perpendicular to each other.

[0114] In this application, the air conditioner indoor unit can be horizontally arranged, that is, the length direction of the main body can be parallel to the horizontal plane.

[0115] In this application, the air conditioner indoor unit can be inclined, that is, the length direction of the main body can form a certain angle with the horizontal plane.

[0116] In this application, referring to Figures 1 - 4 , the main body 100 can at least include a first cavity 101. The first cavity 101 can be located inside the main body.

[0117] In this application, referring to Figures 1 - 4 the main body 100 may include a housing 1.

[0118] In this application, referring to Figures 1 - 4 an indoor air inlet 111 may be formed on the housing 1. The indoor air inlet 111 may be an inlet for air to enter the housing 1. The indoor air inlet 111 may communicate with the first chamber.

[0119] In this application, the indoor air inlet 111 may be provided at the top of the housing.

[0120] In this application, referring to Figures 1 - 4 an indoor air outlet 112 may be formed on the housing 1. The indoor air outlet may be an outlet for air to flow out of the housing 1. The indoor air outlet may communicate with the first chamber.

[0121] In this application, in the height direction of the main body, the indoor air inlet is above the indoor air outlet.

[0122] In this application, the indoor air outlet may be located at the lower front side of the housing.

[0123] In this application, referring to Figures 1 - 4 the main body 100 may include an indoor heat exchanger 21. The indoor heat exchanger 21 may be provided in the first chamber. The indoor heat exchanger 21 may be used for heat exchange with the air in the first chamber.

[0124] In this application, referring to Figures 1 - 4 the main body 100 may include an indoor fan 22. The indoor fan may be provided in the first chamber. The indoor fan may be used to provide power for the flow of air.

[0125] In this application, the indoor fan may be located on the side of the indoor heat exchanger away from the indoor air inlet.

[0126] In this application, the indoor fan causes air to enter the first chamber through the indoor air inlet and exchange heat with the indoor heat exchanger, and the air after heat exchange with the indoor heat exchanger flows out of the housing through the indoor air outlet.

[0127] In this application, an air conditioner outdoor unit may include an outdoor housing. An outdoor accommodation space may be provided inside the outdoor housing.

[0128] In this application, an air conditioner outdoor unit may include an outdoor heat exchanger. The outdoor heat exchanger may be provided in the outdoor accommodation space.

[0129] In this application, an air conditioner outdoor unit may include an outdoor fan. The outdoor fan may be provided in the outdoor accommodation space.

[0130] In the present application, an outdoor air inlet may be provided on the outdoor housing. The outdoor air inlet may communicate with the outdoor accommodation space. The outdoor air inlet may be used to introduce outdoor air into the outdoor accommodation space.

[0131] In the present application, an outdoor air outlet may be provided on the outdoor housing. The outdoor air outlet may communicate with the outdoor accommodation space. The outdoor air outlet may be used to lead the air in the outdoor accommodation space out of the outdoor accommodation space.

[0132] In the present application, the rotation of the outdoor fan causes outdoor air to enter the outdoor accommodation space through the outdoor air inlet and exchange heat with the outdoor heat exchanger, and the outdoor air after heat exchange flows out of the outdoor accommodation space through the outdoor air outlet.

[0133] In the present application, the air conditioner may include a compressor. The compressor may be disposed in the outdoor accommodation space.

[0134] In the present application, the air conditioner may include a throttling device. The throttling device is used for throttling. The throttling device may be disposed in the outdoor accommodation space.

[0135] In the present application, among the indoor heat exchanger and the outdoor heat exchanger, one of them is a condenser and the other is an evaporator.

[0136] In the present application, the air conditioner performs the refrigeration cycle of the air conditioner by using a compressor, a condenser, a throttling device and an evaporator. The refrigeration cycle includes a series of processes, involving compression, condensation, expansion and evaporation, and supplying refrigerant to the air that has been conditioned and heat-exchanged.

[0137] In the present application, the compressor compresses the refrigerant gas in the low-temperature and low-pressure state and discharges the refrigerant gas in the high-temperature and high-pressure state. The discharged refrigerant gas flows into the condenser.

[0138] In the present application, the condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0139] In the present application, the throttling device expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant.

[0140] In the present application, the evaporator evaporates the refrigerant expanded in the throttling device and returns the refrigerant gas in the low-temperature and low-pressure state to the compressor. The evaporator can achieve the refrigeration effect by using the latent heat of evaporation of the refrigerant to perform heat exchange with the material to be cooled. During the whole cycle, the air conditioner can adjust the temperature of the indoor space.

[0141] In the present application, when the indoor heat exchanger is used as a condenser, the air conditioner serves as a heater in the heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner serves as a cooler in the cooling mode.

[0142] In the present application, with reference to Figure 5 , the main body may include a fresh air module. The fresh air module can be used to introduce outdoor fresh air into the room. The fresh air module may include a fresh air volute 6. The fresh air volute can be located inside the casing. A fresh air chamber may be formed inside the fresh air volute, and the fresh air chamber can communicate with the outside.

[0143] The fresh air module may include a fresh air fan, and the fresh air fan can be arranged inside the fresh air chamber.

[0144] The fresh air module may include a fresh air motor. The fresh air motor can be connected to the fresh air fan. The fresh air motor drives the fresh air fan to rotate so that outdoor air flows into the fresh air chamber and then into the room.

[0145] In the present application, the fresh air motor drives the fresh air fan to rotate so that outdoor air flows through the fresh air chamber and enters the first chamber to mix with the indoor air entering the first chamber, and the mixed air flows into the room through the indoor air outlet.

[0146] In the present application, a fresh air outlet may be formed on the casing. The fresh air motor drives the fresh air fan to rotate so that outdoor air flows into the fresh air chamber and then flows into the room through the fresh air outlet.

[0147] In the present application, with reference to Figure 6 , the main body may include a base 3. A scroll tongue air duct 31 is formed on the base 3.

[0148] In the present application, a motor chamber 32 may be formed on the base.

[0149] In the present application, the scroll tongue air duct 31 and the motor chamber 32 may be arranged in sequence along the length direction of the main body.

[0150] In the present application, with reference to Figures 7 - 8 , the indoor fan may include an indoor fan 221. The indoor fan can be arranged inside the scroll tongue air duct.

[0151] In the present application, with reference to Figures 7 - 8 , the indoor fan may include an indoor motor 222. The indoor motor can be located inside the motor chamber.

[0152] In the present application, the indoor motor drives the indoor fan to rotate so that air flows through the indoor air inlet to the indoor heat exchanger for heat exchange, and the air after heat exchange with the indoor heat exchanger flows through the scroll tongue air duct and out of the casing through the indoor air outlet.

[0153] In the present application, the main body may include a water receiving tray 33. The water receiving tray 33 can be formed on the base 3. The water receiving tray 33 can be used to receive the condensed water left on the indoor heat exchanger.

[0154] In the present application, with reference to Figure 9, the main body may include a drainage part 34. The drainage part may be formed on the base.

[0155] In this application, the drainage part may include a drainage part side wall. The drainage part may include a drainage part bottom wall. The drainage part may be a groove formed by the drainage part side wall and the drainage part bottom wall.

[0156] In this application, referring to Figure 9 , the drainage part may be located on the side of the motor cavity away from the indoor fan. The drainage part may communicate with the water receiving tray. A drainage hole 341 may be provided on the bottom wall of the drainage part. The drainage hole 341 is used for draining water. The water in the water receiving tray is discharged through the drainage hole.

[0157] Setting the drainage part on the side of the motor cavity away from the indoor fan can ensure that when water accumulates in the drainage part, the condensed water in the drainage part will not flow to the indoor motor, preventing water from splashing onto the indoor motor and avoiding the indoor motor from being burned out after being powered on due to water, thus ensuring the normal operation and lifespan of the indoor motor.

[0158] In this application, the indoor motor may include a motor rotating shaft. When the indoor motor operates, the motor rotating shaft rotates. The motor rotating shaft may be connected to the indoor fan, and the rotation of the motor rotating shaft drives the indoor fan to rotate.

[0159] In this application, referring to Figures 8 - 9 , the indoor motor may be an outer rotor motor. The outer rotor motor may include a stator 2221. The outer rotor motor may include a rotor 2222. The stator may be fixedly provided in the motor cavity. The rotor may be wound around the outside of the stator along the circumferential direction of the stator. The rotor may be connected to the indoor fan. The stator drives the rotor to rotate, and the rotor drives the indoor fan to rotate.

[0160] In this application, when the indoor motor is an outer rotor motor, there is a gap between the stator and the rotor.

[0161] In this application, when the indoor motor is an outer rotor motor, setting the drainage part on the side of the motor cavity away from the indoor fan can ensure that when water accumulates in the drainage part, the condensed water in the drainage part will not flow to the indoor motor, preventing water from splashing onto the indoor motor and avoiding the splashed water from entering the stator coil and other places through the gap between the rotor and the stator, thus avoiding the indoor motor from being burned out after being powered on due to water, and ensuring the normal operation and lifespan of the indoor motor.

[0162] In this application, the fresh air volute may be provided on the side of the indoor fan away from the indoor motor. Setting the fresh air volute, fresh air fan and fresh air motor can introduce outdoor fresh air into the room. Placing the fresh air volute and the drainage part on both sides of the indoor fan can adapt to the layout of the air conditioner indoor unit and avoid interference between the installation of the fresh air volute and the drainage part.

[0163] In the present application, the main body may include a drain pipe, which can be connected to the base and communicate with the drain hole to discharge water from the drainage part.

[0164] In the present application, referring to Figures 9 - 11 , the water receiving tray may include a first water receiving tray 331. The first water receiving tray 331 may be located on the front side of the volute tongue air duct.

[0165] In the present application, the first water receiving tray may be a trough.

[0166] In the present application, referring to Figures 9 - 11 , the base may include a front volute tongue 351. Along the air flow path, a section of the front volute tongue 351 close to the indoor air inlet is a part of the rear side wall of the first water receiving tray.

[0167] In the present application, referring to Figures 9 - 11 , the indoor heat exchanger may include a first section of heat exchanger 211. The first section of heat exchanger may be located at the front bottom of the indoor heat exchanger.

[0168] The bottom end of the first section of heat exchanger may be located within the first water receiving tray. The first water receiving tray may receive the condensed water flowing down from the first section of heat exchanger.

[0169] In the present application, referring to Figures 9 - 11 , the indoor heat exchanger may include a second section of heat exchanger 212. The bottom end of the second section of heat exchanger may be connected to the top end of the first section of heat exchanger.

[0170] In the present application, the second section of heat exchanger may be inclined. In the front-rear direction of the main body, the top end of the second section of heat exchanger may be located behind the bottom end of the second section of heat exchanger.

[0171] In the present application, the condensed water on the second section of heat exchanger may flow to the first section of heat exchanger and then flow into the first water receiving tray.

[0172] In the present application, referring to Figures 9 - 11 , the water receiving tray may include a second water receiving tray 332. The second water receiving tray 332 may be located on the rear side of the volute tongue air duct.

[0173] In the present application, in the length direction of the main body, one end of the second water receiving tray close to the drainage part is located on the side of the drainage part close to the indoor fan.

[0174] In the present application, the second water receiving tray may be a trough.

[0175] In the present application, referring to Figures 9 - 11 , the indoor heat exchanger may include a third section of heat exchanger 213. The top end of the third section of heat exchanger may be connected to the top end of the second section of heat exchanger. The third section of heat exchanger may be located behind the second section of heat exchanger.

[0176] In this application, the third-stage heat exchanger can be inclined. In the front-rear direction of the main body, the top end of the third-stage heat exchanger can be located in front of the bottom end of the third-stage heat exchanger.

[0177] In this application, the bottom end of the third-stage heat exchanger can be located in the second water receiving tray.

[0178] In this application, the condensed water on the third-stage heat exchanger can flow into the second water receiving tray.

[0179] In this application, the indoor air inlet can be located above the indoor heat exchanger.

[0180] In this application, the indoor fan can be located behind the first-stage heat exchanger. The indoor fan can be located below the top ends of the second-stage heat exchanger and the third-stage heat exchanger.

[0181] In this application, referring to Figures 9 - 11 , the base 3 can include a rear scroll tongue 352. Along the air flow path, a section of the rear scroll tongue 352 close to the indoor air inlet is a part of the front side wall of the second water receiving tray.

[0182] In this application, referring to Figures 9 - 11 , a first diversion part 361 can be formed on the base. The first diversion part can be located on the side of the indoor fan away from the motor cavity.

[0183] In this application, the first diversion part can include a first diversion part side wall. The first diversion part can include a first diversion part bottom wall. The drainage part can be a groove body formed by the first diversion part side wall and the first diversion part bottom wall.

[0184] In this application, along the length direction of the main body, both ends of the first water receiving tray are respectively communicated with the drainage part and the first diversion part.

[0185] Setting the first water receiving tray to be communicated with the drainage part can enable the condensed water received by the first water receiving tray to flow into the drainage part and be discharged through the drainage hole.

[0186] In this application, along the length direction of the main body, one end of the second water receiving tray away from the drainage part is communicated with the first diversion part. This can enable the water in the second water receiving tray to flow into the first water receiving tray through the first diversion part, and then flow into the drainage part through the first water receiving tray, ensuring that the water in the second water receiving tray can be discharged, preventing water from accumulating in the second water receiving tray, avoiding mildew and bacteria growth that may affect the user's health, and avoiding problems such as water leakage from the indoor unit of the air conditioner and water blowing from the indoor air outlet, which may affect the user experience and reduce the market competitiveness of the indoor unit of the air conditioner.

[0187] In this application, referring to Figure 12, a second water diversion part 37 is formed on the base. The second water diversion part 37 can be located at the rear side of the base to receive the condensed water on the base.

[0188] In this application, one end of the second water diversion part can be communicated with the first water diversion part, so that the water received by the second water diversion part can flow through the first water diversion part into the first water receiving tray, and then flow into the drainage part and be discharged through the drainage hole.

[0189] In this application, along the length direction of the main body, the second water diversion part is located on the side of the first water diversion part close to the drainage part. One end of the second water diversion part close to the first water diversion part is communicated with the first water diversion part.

[0190] Generally, the air conditioner indoor unit is installed horizontally. In order to make the drainage part drain water easily, the air conditioner indoor unit is installed obliquely. The end of the air conditioner indoor unit where the drainage part is set can be set slightly lower, or due to limited installation tools, it is easy to install it obliquely. For the convenience of drainage, usually the end of the air conditioner indoor unit where the drainage part is set is slightly lower. However, this setting method will cause the water in the second water receiving tray to accumulate at the end close to the drainage part and cannot be discharged from the water receiving tray.

[0191] In this application, refer to Figures 13 - 17 , a first through hole 3321 for discharging the water in the second water receiving tray from the second water receiving tray is provided on the second water receiving tray.

[0192] In this application, refer to Figures 13 - 17 , the first through hole 3321 can be provided on the bottom wall of the second water receiving tray. The first through hole 3321 can be located at the end of the second water receiving tray close to the drainage part.

[0193] In this application, when the first through hole is provided on the bottom wall of the second water receiving tray, in the length direction of the main body, the first through hole is located on the side of the drainage part close to the indoor fan.

[0194] In this application, refer to Figures 13 - 17 , the second water diversion part 37 can be provided below the first through hole 3321 to receive the water flowing out from the first through hole. The water in the second water receiving tray can flow through the first through hole onto the second water diversion part, and then the water flows through the first water diversion part into the first water receiving tray, and then the water flows into the drainage part and is discharged through the drainage hole.

[0195] In this application, a first through hole is provided at one end of the second water receiving tray close to the drainage part. When the air conditioner indoor unit is inclined and the end of the air conditioner indoor unit where the drainage part is provided is slightly lower, the water accumulated at one end of the second water receiving tray close to the drainage part can be discharged from the second water receiving tray through the first through hole, avoiding the accumulation of water in the second water receiving tray. Moreover, it can also avoid directly setting a channel to connect the second water receiving tray and the drainage part, preventing the set channel from occupying the notch space 363 provided on the base for the refrigerant inlet and outlet pipes of the indoor heat exchanger, and avoiding the increase in the overall size of the main body caused by occupying the notch space.

[0196] In this application, the maximum diameter of the original indoor motor with a motor rotating shaft is generally about 90 mm. The diameter of the outer rotor motor is generally greater than 100 mm.

[0197] When the diameter of the indoor motor with a motor rotating shaft is relatively large, or when the set indoor motor is an outer rotor motor, due to the relatively large diameter of the indoor motor, it is impossible to directly set a channel to connect the second water receiving tray and the drainage part. When directly setting a channel, it will increase the size of the main body in the front-back and up-down directions. When avoiding increasing the size of the main body in the up-down and front-back directions, setting a first through hole at one end of the second water receiving tray close to the drainage part can enable the water in the second water receiving tray to bypass to the second diversion part, the first diversion part, and the first water receiving tray, and then flow into the drainage part, which can reduce the size of the main body in the front-back and up-down directions, reduce the material cost, and have a beautiful appearance.

[0198] In this application, the thickness of the original indoor motor with a motor rotating shaft is generally about 60 mm. The thickness of the outer rotor motor is any value between 35 mm and 45 mm. The thickness of the outer rotor motor can be 40 mm. Therefore, setting the indoor motor as an outer rotor motor can save space in the length direction of the main body. Therefore, the drainage part can be set on the side of the motor cavity away from the indoor fan, which can make full use of the space in the length direction of the main body and avoid the damage to the indoor motor caused by water splashing on the indoor motor.

[0199] In this application, referring to Figures 13 - 17 , the dimension of the drainage part in the length direction of the main body can be the first length L1.

[0200] In this application, the first length L1 ≥ the first parameter value. The first parameter value can be any value between 8 mm and 12 mm. The first parameter value can be 10 mm. L1 ≥ 10 mm. This can avoid the width of the drainage part being too small, resulting in too small an opening at the connection end between the drainage part and the water receiving tray, which affects the entry of water from the water receiving tray into the drainage part, and can ensure the drainage efficiency.

[0201] In this application, the first length L1 ≤ the second parameter value. The second parameter value can be any value within 18 mm - 22 mm. The second parameter value can be 20 mm. L1 ≤ 20 mm. This avoids the width of the drainage part being too large, resulting in a large length dimension of the main body and wasting the length dimension of the main body.

[0202] In this application, the second diversion part is inclined with respect to the length direction of the main body, and the end of the second diversion part connected to the first diversion part is the end of the second diversion part close to the bottom end of the main body.

[0203] In this application, referring to Figures 13 - 17 , the included angle between the extending direction of the second diversion part and the length direction of the main body is the first angle α1.

[0204] In this application, α1 ≥ the third parameter value. The third parameter value can be any value between 1° - 3°. The third parameter value can be 2°. α1 ≥ 2°.

[0205] Setting α1 ≥ 2° avoids the first included angle being too small. When the main body is horizontally installed, it is convenient for the water in the second diversion part to flow into the first diversion part, and it is convenient to drain the water into the drainage part and discharge it from the drainage part.

[0206] When the air conditioner indoor unit is inclined and the end with the drainage part is slightly lower, due to the length dimension of the air conditioner indoor unit, the inclination angle of the air conditioner indoor unit that can be distinguished by the human eye is not very large. Setting α1 ≥ 2° can ensure that when the main body is inclined relative to the horizontal plane and the end of the second water receiving tray close to the drainage part is the bottom end, the height of the end of the second diversion part close to the first diversion part does not exceed the end of the second diversion part far from the first diversion part, enabling the water in the second diversion part to flow into the first diversion part, facilitating the drainage of water into the drainage part and discharging it from the drainage part, solving the problem of difficult drainage of water in the second water receiving tray and the second diversion part caused by the slightly lower end of the drainage part, avoiding water accumulation in the second water receiving tray and the second diversion part, preventing mildew and bacteria growth that may affect the user's health, and avoiding the problems of water leakage from the air conditioner indoor unit and water blowing from the indoor air outlet due to the inability to drain the water in the second water receiving tray, thus avoiding affecting the user experience and reducing the market competitiveness of the air conditioner indoor unit.

[0207] In this application, when the main body is inclined relative to the horizontal plane and the end of the second water receiving tray close to the drainage part is the bottom end, the water in the first water receiving tray and the first diversion part can be conveniently drained into the drainage part, and the drainage hole is at the lowest point of the drainage part, facilitating the drainage of water in the drainage part.

[0208] In this application, referring to Figures 18 - 19 , the point on the second diversion part farthest from the first diversion part and closest to the bottom end of the main body is the first point D1. The point on the second diversion part connected to the first diversion part and closest to the bottom end of the main body is the second point D2.

[0209] In the height direction of the main body, the height difference between the first point and the second point is the first height difference H. Along the length direction of the main body, the length of the second water guiding part is L2. H / L2 = tan α1.

[0210] In this application, H / L2 ≥ the tenth parameter value. The tenth parameter value can be any value between 0.017 and 0.053. The tenth parameter value can be 0.034. H / L2 ≥ 0.034, which can prevent the second water guiding part from having a small inclination relative to the length direction of the main body, prevent the end of the second water guiding part close to the first water guiding part from being too high when the main body is inclined, so as to prevent the water in the second water guiding part from not being able to enter the first water guiding part, and prevent the water in the second water guiding part from being difficult to discharge.

[0211] In this application, H ≥ the fourth parameter value. The fourth parameter value can be any value between 12 mm and 20 mm. The fourth parameter value can be 17 mm. H ≥ 17 mm. This can prevent H from being too small, resulting in too small α1, prevent the second water guiding part from having a small inclination relative to the length direction of the main body, prevent the end of the second water guiding part close to the first water guiding part from being too high when the main body is inclined, so as to prevent the water in the second water guiding part from not being able to enter the first water guiding part, and prevent the water in the second water guiding part from being difficult to discharge. And it can prevent the size of H from being too small, making the inclination height of the corresponding indoor unit of α1 not obvious, and can limit the inclination angle of the air-conditioning indoor unit within 2°, so as to ensure the function of the second water guiding part to guide water into the first water guiding part.

[0212] In this application, L2 can be any value between 500 mm and 800 mm.

[0213] In this application, L2 can be 640 mm.

[0214] In this application, when L2 is 640 mm, the minimum value of H can be 23 mm.

[0215] In this application, in the length direction of the main body, the length of the volute tongue air duct can be any value between 500 mm and 800 mm.

[0216] In this application, in the length direction of the main body, the length of the volute tongue air duct can be equal to the length of the second water guiding part.

[0217] In this application, referring to Figures 18 - 20 , the base includes a base body 301. The base can include a second water guiding plate 302. The second water guiding plate is connected to the rear side of the base body. The second water guiding plate and the base body form a second water guiding part.

[0218] In this application, the bottom end of the second water guiding plate 302 is connected to the base body. Along the front-back direction of the main body, the top end of the second water guiding plate is located behind the bottom end of the second water guiding plate, so that the second water guiding plate and the base body can form a second water guiding part that can receive water.

[0219] In the present application, the first water receiving tray can be in communication with the drainage part, and the water in the first water receiving tray can flow into the drainage part.

[0220] In the present application, one end of the second water receiving tray close to the drainage part can be in communication with the drainage part, and the water in the second water receiving tray can flow into the drainage part through the end of the second water receiving tray close to the drainage part.

[0221] In the present application, a drainage hole can be provided on the bottom wall of the drainage part. The drainage hole 341 is used for drainage. The drainage hole can drain the water in the drainage part.

[0222] Setting one end of the second water receiving tray close to the drainage part to be in communication with the drainage part can enable the water in the second water receiving tray to flow into the drainage part through the end of the second water receiving tray close to the drainage part, can reduce the length of the drainage path, avoid water overflow at a local position during the drainage process, and can reduce the amount of water discharged from the second water receiving tray into the first water receiving tray, can reduce the drainage pressure of the first water receiving tray, and avoid overflow at the first water receiving tray.

[0223] In the present application, referring to Figures 21 - 23 , the main body can include a first communication part 362. The first communication part 362 can be formed on the base. The first communication part can be located behind the drainage part.

[0224] In the present application, the first communication part can be a communication channel.

[0225] In the present application, the first communication part can be in communication with the drainage part. The front bottom end of the first communication part can be in communication with the rear side of the drainage part.

[0226] In the present application, one end of the second water receiving tray close to the drainage part can be in communication with the first communication part. One end of the second water receiving tray close to the drainage part can be in communication with the drainage part through the first communication part, and the water in the second water receiving tray can flow into the drainage part through the first communication part.

[0227] Setting the first communication part can directly connect the second water receiving tray and the drainage part, reduce the length of the drainage path of the second drainage tray, and reduce the drainage pressure of the first water receiving tray.

[0228] In the present application, referring to Figures 21 - 24 , a first diversion part 361 is formed on the base. The first diversion part can be provided on the side of the indoor fan away from the motor chamber.

[0229] In the present application, both ends of the first water receiving tray along the length direction of the main body can be respectively in communication with the drainage part and the first diversion part.

[0230] In the present application, in the length direction of the main body, one end of the second water receiving tray away from the drainage part can be in communication with the first diversion part.

[0231] The water in the second water receiving tray can flow into the first water receiving tray through the first guide portion, and then flow into the drainage portion through the first water receiving tray.

[0232] In the present application, a gap space 363 is provided on the base for the refrigerant inlet and outlet pipes of the indoor heat exchanger to pass through. The provision of the first connecting portion reduces the size of the gap space, and the reduction of the gap space is likely to increase the overall size of the main body, but reduces the possibility of the first water receiving pan overflowing due to the second water receiving pan winding around the second guide part, the first guide part and the first water receiving pan and then draining to the drainage part, thereby improving the user experience.

[0233] In this application, reference is made to Figures 21 - 24 A second guide portion 37 is formed on the base. The second guide portion 37 can be located at the rear side of the base to receive condensed water on the base.

[0234] In the present application, along the length direction of the main body, the second guide portion can be located on the side of the first guide portion close to the drainage portion, and one end of the second guide portion can be connected to the first guide portion, so that the water received by the second guide portion can flow into the first water receiving tray through the first guide portion, and then flow into the drainage portion and be discharged through the drainage hole.

[0235] In the present application, the second guide portion is arranged obliquely relative to the length direction of the main body, and the end of the second guide portion connected to the first guide portion is the end of the second guide portion close to the bottom end of the main body.

[0236] In this application, reference is made to Figures 21 - 24 The included angle between the extension direction of the second guide portion and the length direction of the main body is a first angle α1.

[0237] In the present application, α1≥the third parameter value. The third parameter value may be any value between 1° and 3°. The third parameter value may be 2°. α1≥2°.

[0238] Set α1≥2° to avoid the first angle being too small, so that when the main body is installed horizontally, it is convenient for water in the second guide part to flow into the first guide part, and it is convenient for the water to flow to the drainage part and be discharged from the drainage part.

[0239] By setting α1≥2°, when the main body is inclined relative to the horizontal plane and the end of the second water receiving tray close to the drainage part is the bottom end, the end of the second drainage part close to the first drainage part does not exceed the end of the second drainage part far from the first drainage part, so that water in the second drainage part can flow into the first drainage part, making it convenient for the water to flow to the drainage part and be discharged from the drainage part, solving the problem of water in the second drainage part being difficult to drain due to setting one end of the drainage part slightly lower, avoiding water accumulation in the second drainage part, and avoiding mold and bacteria growth that affect the health of users.

[0240] In this application, along the length direction of the main body, the second diversion part is located on the side of the first diversion part close to the drainage part. Along the length direction of the main body, both ends of the second diversion part are respectively communicated with the first communication part and the first diversion part, facilitating the water in the second diversion part to flow to the drainage part from both ends and increasing the drainage efficiency of the second diversion part.

[0241] In this application, with reference to Figures 25 - 26 , a second through hole 3621 may be provided on the side wall of the first communication part, and the second diversion part and the first communication part may be communicated through the second through hole, facilitating the communication between the first communication part and the second diversion part.

[0242] In this application, along the length direction of the main body, both ends of the second diversion part may be lower than the middle part of the second diversion part, so that the water in the second diversion part can flow to the first communication part and the first diversion part respectively.

[0243] In this application, the second diversion part may include a first sub-diversion part 371. The first sub-diversion part may be located at one end of the second diversion part close to the first communication part.

[0244] In this application, the second diversion part includes a second sub-diversion part 372. The first sub-diversion part may be located at one end of the second diversion part close to the first diversion part.

[0245] In this application, the adjacent ends of the first sub-diversion part and the second sub-diversion part are connected.

[0246] In this application, the first sub-diversion part and the second sub-diversion part are inclined with respect to the length direction of the main body. The end of the first sub-diversion part connecting the second sub-diversion part is the end of the first sub-diversion part far from the bottom end of the main body. The end of the second sub-diversion part connecting the first sub-diversion part is the end of the second sub-diversion part far from the bottom end of the main body.

[0247] Setting both the first sub-diversion part and the second sub-diversion part to be inclined with respect to the length direction of the main body facilitates the water on the first sub-diversion part and the second sub-diversion part to be respectively guided to the first communication part and the first diversion part.

[0248] In this application, the extension direction of the first sub-diversion part forms an angle of a second angle α2 with the length direction of the main body.

[0249] In this application, α2≥a fourth parameter value. The fourth parameter value may be any value between 1° and 3°. The fourth parameter value may be 2°. α2≥2°. To avoid the second angle being too small, when the main body is horizontally installed or the main body is inclined with respect to the horizontal plane, it can be ensured that the end of the first sub-diversion part close to the first communication part does not exceed the end of the first sub-diversion part far from the first communication part, and the water in the first sub-diversion part can flow into the first communication part, facilitating the water to flow to the drainage part and be discharged from the drainage part.

[0250] In the present application, the included angle between the extending direction of the second sub-diversion part and the length direction of the main body is the third angle α3.

[0251] In the present application, α3 ≥ the fifth parameter value. The fifth parameter value can be any value between 1° and 3°. The fifth parameter value can be 2°. α3 ≥ 2°. Avoiding the third included angle from being too small, when the main body is horizontally installed or the main body is inclined relative to the horizontal plane, it can be ensured that the end of the second sub-diversion part close to the first diversion part does not exceed the end of the second sub-diversion part far from the first diversion part, so that the water in the second sub-diversion part can flow into the first diversion part, facilitating the water to flow into the drainage part and be discharged from the drainage part.

[0252] In the present application, the second diversion part can be horizontally arranged so that water can flow into the drainage part regardless of how the length direction of the main body is inclined relative to the horizontal plane.

[0253] In the present application, an opening can be provided at the rear of the first diversion part.

[0254] In the present application, referring to Figures 27 - 29 , the main body can include a drainage part. The drainage part can be formed on the base. The drainage part can be located below the motor cavity. The drainage part and the motor cavity are isolated by a first partition 364.

[0255] The drainage part can be communicated with the first water receiving tray. A drain hole 341 can be provided on the bottom wall of the drainage part. The water in the first water receiving tray is discharged through the drain hole.

[0256] Setting the drainage part below the motor cavity and isolating it from the motor cavity by a first partition can ensure that when water accumulates in the drainage part, the condensed water in the drainage part will not flow to the indoor motor, preventing water from splashing onto the indoor motor and avoiding the indoor motor from being burned out after being powered on, thus ensuring the normal operation and service life of the indoor motor.

[0257] In the present application, when the drainage part is located below the motor cavity and isolated from the motor cavity by a first partition, the indoor motor can be an external rotor motor. When the indoor motor is an external rotor motor, setting the drainage part below the motor cavity and isolating it from the motor cavity by a first partition can ensure that when water accumulates in the drainage part, the condensed water in the drainage part will not flow to the indoor motor, preventing water from splashing onto the indoor motor and avoiding the splashed water from entering the stator coil etc. through the gap between the rotor and the stator, and avoiding the indoor motor from being burned out after being powered on, thus ensuring the normal operation and service life of the indoor motor.

[0258] In the present application, referring to Figures 27 - 29 , a third through hole 3311 can be provided on the bottom wall of the first water receiving tray. The first water receiving tray can be communicated with the drainage part through the third through hole, facilitating the direct communication between the first water receiving tray and the drainage part.

[0259] In this application, the main body includes a second water receiving tray 332. The second water receiving tray 332 can be formed on the base. The second water receiving tray 332 can be used to receive the condensed water flowing down from the indoor heat exchanger. The second water receiving tray can be arranged at the rear side of the volute tongue air duct.

[0260] In this application, the main body includes a first diversion part 361. The first diversion part 361 can be formed on the base. The first diversion part 361 can be arranged on the side of the indoor fan away from the motor cavity.

[0261] In this application, along the length direction of the main body, one end of the first water receiving tray away from the drainage part is communicated with the first diversion part.

[0262] In this application, along the length direction of the main body, one end of the second water receiving tray away from the drainage part is communicated with the first diversion part, so that the water in the second water receiving tray can flow to the first water receiving tray through the first diversion part and be discharged into the drainage part.

[0263] In this application, a second diversion part 37 is formed at the rear side of the base. The second diversion part 37 is used to receive the condensed water on the base.

[0264] Along the length direction of the main body, the second diversion part is located on the side of the first diversion part close to the drainage part. One end of the second diversion part close to the first diversion part is communicated with the first diversion part, so that the water on the second diversion part can flow into the first diversion part and then flow into the drainage part.

[0265] In this application, refer to Figures 32 - 33 , a first through hole 3321 for water to flow from the second water receiving tray to the rear of the base is provided on the bottom wall of the second water receiving tray.

[0266] In this application, the second diversion part is located below the first through hole to receive the water flowing out of the first through hole, and can guide the water out of the second water receiving tray through the first through hole and guide the water to the drainage part through the second diversion part, so that when the air conditioner indoor unit is tilted, the water in the second water receiving tray can be normally discharged.

[0267] In this application, the first through hole can be located at one end of the second water receiving tray close to the drainage part, so that when the indoor unit of the air conditioner is tilted and the end of the indoor unit of the air conditioner where the drainage part is arranged is slightly lower, the water accumulated at one end of the second water receiving tray close to the drainage part can be discharged from the second water receiving tray through the first through hole, avoiding the accumulation of water in the second water receiving tray.

[0268] In this application, refer to Figures 30 - 31 and Figures 34 - 35 , the drainage part is located below the first through hole to receive the water flowing out of the first through hole.

[0269] In the present application, one end of the second diversion part away from the first diversion part can be communicated with the drainage part, facilitating the water in the second diversion part to flow to the drainage part from both ends, and increasing the drainage efficiency of the second diversion part.

[0270] In the present application, referring to Figure 30 , when one end of the second diversion part away from the first diversion part is communicated with the drainage part, the second diversion part may include a first sub-diversion part 371. The first sub-diversion part may be located at one end of the second diversion part close to the drainage part.

[0271] In the present application, when one end of the second diversion part away from the first diversion part is communicated with the drainage part, the second diversion part includes a second sub-diversion part 372. The first sub-diversion part may be located at one end of the second diversion part close to the first diversion part.

[0272] In the present application, the adjacent ends of the first sub-diversion part and the second sub-diversion part are connected.

[0273] In the present application, the first sub-diversion part and the second sub-diversion part are inclined with respect to the length direction of the main body. One end of the first sub-diversion part connecting the second sub-diversion part is the end of the first sub-diversion part away from the bottom end of the main body. One end of the second sub-diversion part connecting the first sub-diversion part is the end of the second sub-diversion part away from the bottom end of the main body.

[0274] Setting both the first sub-diversion part and the second sub-diversion part to be inclined with respect to the length direction of the main body facilitates guiding the water on the first sub-diversion part and the second sub-diversion part to the drainage part and the first diversion part respectively.

[0275] In the present application, referring to Figure 30 , the included angle between the extending direction of the first sub-diversion part and the length direction of the main body is the second angle α2.

[0276] In the present application, α2≥the fourth parameter value. The fourth parameter value can be any value between 1° and 3°. The fourth parameter value can be 2°. α2≥2°. Avoiding the second included angle being too small, when the main body is horizontally installed or the main body is inclined with respect to the horizontal plane, it can be ensured that the end of the first sub-diversion part close to the drainage part does not exceed the end of the first sub-diversion part away from the drainage part, enabling the water in the first sub-diversion part to flow into the drainage part, facilitating the water to flow into the drainage part and be discharged from the drainage part.

[0277] In the present application, referring to Figure 30 , the included angle between the extending direction of the second sub-diversion part and the length direction of the main body is the third angle α3.

[0278] In the present application, α3≥5th parameter value. The fifth parameter value may be any value between 1°-3°. The fifth parameter value may be 2°. α3≥2°. Avoid the third angle being too small, so that when the main body is installed horizontally or when the main body is tilted relative to the horizontal plane, the end of the second sub-guiding part close to the first guiding part does not exceed the end of the second sub-guiding part away from the first guiding part, and the water in the second sub-guiding part can flow into the first guiding part, so that the water can flow to the drainage part and be discharged from the drainage part conveniently.

[0279] In the present application, one end of the second guide portion away from the first guide portion may be isolated from the drainage portion.

[0280] In the present application, when one end of the second guide part is away from the first guide part and isolated from the drainage part, the second guide part is inclined relative to the length direction of the main body, and the end of the second guide part connected to the first guide part is the end of the second guide part close to the bottom end of the main body, which is convenient for guiding water to the first guide part.

[0281] In the present application, when one end of the second guide portion away from the first guide portion is isolated from the drainage portion, the included angle between the extension direction of the second guide portion and the length direction of the main body is a first angle α1. α1≥2°.

[0282] Set α1≥2° to avoid the first angle being too small, so that when the main body is installed horizontally, it is convenient for water in the second guide part to flow into the first guide part, and it is convenient for the water to flow to the drainage part and be discharged from the drainage part.

[0283] By setting α1≥2°, when the main body is inclined relative to the horizontal plane and the end of the second water receiving tray close to the drainage part is the bottom end, the end of the second drainage part close to the first drainage part does not exceed the end of the second drainage part far from the first drainage part, so that water in the second drainage part can flow into the first drainage part, making it convenient for the water to flow to the drainage part and be discharged from the drainage part, solving the problem of water in the second drainage part being difficult to drain due to setting one end of the drainage part slightly lower, avoiding water accumulation in the second drainage part, and avoiding mold and bacteria growth that affect the health of users.

[0284] In the present application, the base may include a front volute tongue 351. The front volute tongue may be used to form a volute tongue air duct 31.

[0285] In the present application, the base may include a rear volute tongue 352. The rear volute tongue 352 may be used to form a volute tongue air duct.

[0286] In the present application, the main body may include a first water receiving tray 331. The first water receiving tray may be formed on the base 3. The first water receiving tray may receive condensed water flowing down from the indoor heat exchanger.

[0287] In the present application, a water receiving tray may be formed on the base, and the water receiving tray is used to receive condensed water flowing down from the indoor heat exchanger. The water receiving tray may include a first water receiving tray.

[0288] In this application, the indoor heat exchanger may include a first-stage heat exchanger. The bottom end of the first-stage heat exchanger may be located within the first water receiving tray. The condensed water on the first-stage heat exchanger may flow onto the first water receiving tray.

[0289] In this application, the indoor heat exchanger may include a second-stage heat exchanger, and the condensed water on the second-stage heat exchanger may flow onto the first water receiving tray.

[0290] In this application, the first water receiving tray may be located in front of the volute tongue air duct. The first water receiving tray may be located on the front side of the motor chamber.

[0291] In this application, with reference to Figure 36 , the first water receiving tray may have a first water receiving tray rear wall 3312. The first water receiving tray rear wall may be located on the rear side of the first water receiving tray.

[0292] In this application, due to the limitation of the fresh air module, generally a drain hole and a drain pipe are provided on one side of the air conditioner indoor unit. And due to the influence of its overall structure, the drain hole is usually set on the side close to the indoor motor, or due to the limitation of the installation environment, the drain hole can only be provided on one side of the air conditioner indoor unit and is set on the side close to the indoor motor; in order to ensure smooth drainage, the air conditioner indoor unit is usually installed horizontally or obliquely to ensure that the position of the drain pipe is lower for convenient drainage; when the drain pipe is blocked, the condensed water flowing down from the indoor heat exchanger cannot be discharged through the drain pipe in time. The water receiving tray includes a first water receiving tray located on the front side of the volute tongue air duct. The rear side wall of the first water receiving tray is usually the lowest point of the water receiving tray. When the air conditioner indoor unit is tilted, the front side wall of the motor chamber is the lowest point of the water receiving tray. When the drain pipe is blocked, water usually enters the motor chamber. When water contacts the live components, short circuits are likely to occur, and when water enters the motor chamber, it is likely to damage the indoor motor.

[0293] In this application, with reference to Figure 37 , the first water receiving tray rear wall may include a first rear wall 33121.

[0294] In this application, with reference to Figure 37 , the first water receiving tray rear wall may include a second rear wall 33122.

[0295] In this application, the second rear wall and the first rear wall may be sequentially arranged in the length direction of the main body. The second rear wall may be connected to the first rear wall.

[0296] In this application, the front volute tongue may at least include a part of the first rear wall. That is, at least a part of the first rear wall is a part of the front volute tongue.

[0297] In this application, with reference to Figures 36 - 37, the second rear wall may include a front side wall 321 of the motor chamber located on the front side of the motor chamber.

[0298] In the present application, along the length direction of the main body, the connection part of the second rear wall and the first rear wall may be located on the side of the motor chamber close to the indoor fan.

[0299] In the height direction of the main body, the first rear wall may be lower than the second rear wall.

[0300] In the present application, setting the end part of the first rear wall connecting the second rear wall lower than the second rear wall can make the end part of the first rear wall connecting the second rear wall be the lowest point of the side wall of the first water receiving tray when the air conditioner indoor unit is slightly tilted. Also, since the connection part of the first rear wall and the second rear wall is located on the side of the motor chamber close to the indoor fan, when the drain pipe is blocked or the drain hole is blocked, the condensed water in the first water receiving tray can be prevented from flowing into the motor chamber as much as possible, but instead flows to the side of the motor chamber close to the volute tongue air duct, avoiding the influence of water on the indoor motor.

[0301] In the present application, when the indoor motor is an outer rotor motor, setting the end part of the first rear wall connecting the second rear wall lower than the second rear wall can make the end part of the first rear wall connecting the second rear wall be the lowest point of the side wall of the first water receiving tray when the air conditioner indoor unit is slightly tilted. Also, since the connection part of the first rear wall and the second rear wall is located on the side of the motor chamber close to the indoor fan, when the drain pipe is blocked or the drain hole is blocked, the condensed water in the first water receiving tray can be prevented from flowing into the motor chamber as much as possible, but instead flows to the side of the motor chamber close to the volute tongue air duct, avoiding the influence of water on the indoor motor.

[0302] In the present application, referring to Figure 38 , the end part of the first rear wall connecting the second rear wall may be the first end 331211 of the rear wall. In the height direction of the main body, the minimum distance between the first end of the rear wall and the top end of the second rear wall may be the third distance L3.

[0303] In the present application, L3 ≥ the sixth parameter value. The sixth parameter value may be any value in the range of 5 mm - 7 mm. The sixth parameter value may be 5 mm. L3 ≥ 5 mm. This can ensure that the third distance is not too small, and can make the end part of the first rear wall connecting the second rear wall be the lowest point of the side wall of the first water receiving tray within the tilting range of the air conditioner indoor unit. Also, since the connection part of the first rear wall and the second rear wall is located on the side of the motor chamber close to the indoor fan, when the drain pipe is blocked or the drain hole is blocked, the condensed water in the first water receiving tray can be prevented from flowing into the motor chamber as much as possible, but instead flows to the side of the motor chamber close to the volute tongue air duct, avoiding the influence of water on the indoor motor.

[0304] In the present application, in the front - rear direction of the main body, the first rear wall and the front side wall of the motor chamber may be arranged staggeredly.

[0305] In the front-rear direction of the main body, the front side wall of the motor cavity can be located on the front side of the first rear wall. The motor connected to the indoor fan is an outer-rotor motor, and the overall radial dimension of the outer-rotor motor is larger than the diameter of the indoor fan. To ensure that the rotation axis of the rotor of the outer-rotor motor is aligned with the rotation axis of the indoor fan, the front end of the outer-rotor motor should be located on the front side of the indoor fan in the front-rear direction of the main body. Therefore, setting the front side wall of the motor cavity can be located on the front side of the first rear wall can meet the installation requirements of the outer-rotor motor. Setting the front side wall of the motor cavity on the front side of the first rear wall can reduce the communication opening between the motor cavity and the volute tongue air duct, and while satisfying the rotation of the rotor and the indoor fan, reduce the gap between the rotor and the fan and the communication opening, which can reduce the entry of overflowing water or dust into the motor cavity.

[0306] In the present application, referring to Figure 39 , the base can include a first water retaining rib 365.

[0307] In the present application, referring to Figure 39 , the base can include a second water retaining rib 366.

[0308] In the present application, the first water retaining rib and the second water retaining rib can be connected behind the rear wall of the first water receiving tray. The first water retaining rib and the second water retaining rib can be arranged in sequence along the length direction of the main body. The first water retaining rib and the second water retaining rib can be located between the volute tongue air duct and the motor cavity. The first water retaining rib can be located on the side of the second water retaining rib away from the motor cavity.

[0309] In the present application, referring to Figure 39 and Figures 41 - 42 , an overflow groove 367 can be formed between the first water retaining rib and the second water retaining rib. The overflow groove can be used to store condensed water. The overflow groove can be used to guide the condensed water.

[0310] In the present application, the first water retaining rib and the second water retaining rib are the side walls of the overflow groove.

[0311] In the present application, the top end of the second water retaining rib can be coplanar with the top end of the first water retaining rib.

[0312] In the present application, the top end of the second water retaining rib can be located on the side of the top end of the first water retaining rib close to the top end of the main body. This makes the second water retaining rib higher than the first water retaining rib, and when the condensed water in the first water receiving tray overflows at the first rear wall and the second rear wall, it can block the condensed water and prevent the condensed water from flowing into the motor cavity.

[0313] In the present application, referring to Figures 39 - 42 , an overflow groove notch 368 can be provided at the rear end of the overflow groove 367.

[0314] In this application, one end of the overflow groove notch close to the volute tongue air duct can communicate with the volute tongue air duct, facilitating the water in the overflow groove to flow into the volute tongue air duct, enabling the identification of whether there is water overflow, and facilitating the dredging of the drain pipe.

[0315] In this application, the bottom surface of the overflow groove notch may not be higher than the rear end of the bottom surface of the overflow groove, so that the water in the overflow groove can flow into the overflow groove notch.

[0316] In this application, referring to Figure 40 , a fourth through hole 3681 for the water in the overflow groove notch to flow to the lower part of the base may be formed on the bottom surface of the overflow groove notch, and the water in the overflow groove notch can flow out of the overflow groove notch through the fourth through hole.

[0317] In this application, one end of the overflow groove notch close to the motor cavity can communicate with the motor cavity, facilitating the water in the motor cavity to flow out of the motor cavity, preventing the water flowing into the motor cavity from accumulating in the motor cavity, and preventing the water from contacting the indoor motor and damaging the indoor motor.

[0318] In this application, referring to Figures 43 - 44 , the motor cavity may have a lowest point D3 of the motor cavity. The indoor motor has a lowest point D4 of the indoor motor. In the height direction of the main body, the distance between the lowest point of the motor cavity and the lowest point of the indoor motor may be a first height h1.

[0319] In this application, the first height h1 ≥ the seventh parameter value. The seventh parameter value may be any value in the range of 5 mm - 7 mm. The seventh parameter value may be 5 mm. The first height h1 ≥ 5 mm. This can prevent the first height from being too low, causing the indoor motor to be too close to the lowest point of the motor cavity, and making it easy for the indoor motor to come into contact with water when there is water in the motor cavity, thus damaging the indoor motor.

[0320] In this application, in the vertical direction, the overflow height of the overflow groove notch relative to the lowest point of the motor cavity is a second height h2.

[0321] In this application, the second height h2 ≥ the eighth parameter value. The eighth parameter value may be any value in the range of 0 mm - 2 mm. The eighth parameter value may be 0 mm. The second height h2 ≥ 0 mm. This makes the lower limit value of the second height as small as possible, facilitating the water in the motor cavity to flow into the fourth through hole and / or flow through the overflow groove notch into the volute tongue air duct.

[0322] In this application, h1 > h2, which can prevent the water in the motor cavity from contacting the indoor motor before reaching the overflow height, and prevent the indoor motor from being affected by water.

[0323] In this application, the base may include a first end face 353 of the volute tongue air duct located at one end of the volute tongue air duct close to the motor cavity.

[0324] In the present application, the connection between the second rear wall and the first rear wall is located on the side of the first end face of the volute tongue air duct away from the fan cavity.

[0325] In the present application, with reference to Figure 45 , along the length direction of the main body, the distance between the connection of the second rear wall and the first rear wall and the first end face of the volute tongue air duct is the fourth distance L4.

[0326] In the present application, the fourth distance L4 ≤ the ninth parameter value. The ninth parameter value can be any value in the range of 8 mm - 12 mm. The ninth parameter value can be 10 mm. L4 ≤ 10 mm, which can prevent the connection of the first rear wall and the second rear wall from shifting too much towards the volute tongue air duct side, avoid causing the front volute tongue to be too high, and avoid abnormal noise in the volute tongue air duct.

[0327] In the present application, the wall surface of the first water retaining rib on the side away from the second water retaining rib can be coplanar with the first end face of the volute tongue air duct.

[0328] In the present application, the wall surface of the first water retaining rib on the side away from the second water retaining rib can be located on the side of the first end face of the volute tongue air duct close to the motor cavity.

[0329] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0330] For the sake of convenience of explanation, the above description has been made in combination with specific implementation manners. However, the above exemplary discussion is not intended to be exhaustive or to limit the implementation manners to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above implementation manners are for better explaining the principles and practical applications, so that those skilled in the art can better use the implementation manners and various different modified implementation manners suitable for specific use considerations.

Claims

1. A wall mounted air conditioner indoor unit, characterized in that: include: A main body, wherein the length direction of the main body is from one side end of the main body to the other side end of the main body; the main body at least includes a first cavity located in the main body; The subject includes: A casing having an indoor air inlet and an indoor air outlet formed thereon; an indoor heat exchanger, disposed in the first chamber; A base, on which a volute-tongue air duct and a motor cavity are formed, wherein the volute-tongue air duct and the motor cavity are sequentially arranged along the width direction of the main body; an indoor fan, disposed in the first cavity and located on a side of the indoor heat exchanger away from the indoor air inlet; The indoor fan comprises an indoor fan and an indoor motor; the indoor fan is arranged in the volute-tongue air duct; The indoor motor is an outer rotor motor, which includes a stator and a rotor. The stator is fixed on the motor cavity, and the rotor is wound around the outer side of the stator along the circumference of the stator. The rotor is connected to the indoor fan. The indoor motor drives the indoor fan to rotate so that air flows through the indoor air inlet to the indoor heat exchanger to exchange heat with the indoor heat exchanger, and the air after heat exchange with the indoor heat exchanger flows through the volute air duct and out of the casing through the indoor air outlet; A first water receiving tray, disposed on the base and used to receive condensed water flowing down from the indoor heat exchanger, wherein the first water receiving tray is disposed on the front side of the volute-tongue air duct; A second water receiving tray, disposed on the base and used to receive condensed water flowing down from the indoor heat exchanger, the second water receiving tray being disposed at the rear side of the volute tongue air duct; a drainage portion formed on the base and located on a side of the motor cavity away from the indoor fan; The first water receiving tray is in communication with the drainage portion, and water in the first water receiving tray flows into the drainage portion; One end of the second water receiving tray close to the drainage portion is connected to the drainage portion, and the water in the second water receiving tray flows into the drainage portion through the one end of the second water receiving tray close to the drainage portion; The bottom wall of the drainage part is provided with a drainage hole for drainage.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The subject includes: A fresh air volute is arranged in the casing and located at a side of the indoor fan away from the indoor motor, a fresh air cavity is formed in the fresh air volute, and the fresh air cavity is communicated with the outside; A fresh air fan is arranged in the fresh air cavity; A fresh air motor connected to the fresh air fan; The fresh air motor drives the fresh air fan to rotate so that outdoor air flows into the fresh air cavity and then flows into the room.

3. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The subject includes: A first connecting portion, formed on the base and located behind the drainage portion; One end of the second water receiving tray close to the drainage portion is communicated with the drainage portion through the first communication portion.

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that: A first air guide portion is formed on the base, and the first air guide portion is arranged on a side of the indoor fan away from the motor cavity; Two ends of the first water receiving tray along the length direction of the main body are respectively connected to the drainage part and the first guide part; In the length direction of the main body, one end of the second water receiving tray away from the drainage portion is communicated with the first guide portion.

5. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that: A second air guide portion is formed on the base, and the second air guide portion is located at the rear side of the base; Along the length direction of the main body, the second guide portion is located at a side of the first guide portion close to the drainage portion, and two ends of the second guide portion are respectively connected to the first connecting portion and the first guide portion.

6. The wall-mounted air conditioner indoor unit according to claim 5, characterized in that: A second through hole is provided on the side wall of the first connecting portion, and the second flow guide portion and the first connecting portion are connected through the second through hole.

7. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that: A second guide portion is formed on the base, the second guide portion is located at the rear side of the base, one end of the second guide portion is connected to the first guide portion, and along the length direction of the main body, the second guide portion is located on a side of the first guide portion close to the drainage portion.

8. The wall-mounted air conditioner indoor unit according to claim 7, characterized in that: The second guide portion is arranged obliquely relative to the length direction of the main body, and one end of the second guide portion connected to the first guide portion is an end of the second guide portion close to the bottom end of the main body.

9. The wall-mounted air conditioner indoor unit according to claim 8, characterized in that: An included angle between an extending direction of the second air guide portion and a length direction of the main body is a first angle α1, where α1≥2°.

10. A wall mounted air conditioner indoor unit, characterized in that: include: A main body, wherein the length direction of the main body is from one side end of the main body to the other side end of the main body; the main body at least includes a first cavity located in the main body; The subject includes: A casing having an indoor air inlet and an indoor air outlet formed thereon; an indoor heat exchanger, disposed in the first chamber; A base, on which a volute-tongue air duct and a motor cavity are formed, wherein the volute-tongue air duct and the motor cavity are sequentially arranged along the width direction of the main body; An indoor fan is arranged in the first cavity and located at a side of the indoor heat exchanger away from the indoor air inlet; the indoor fan comprises an indoor fan and an indoor motor, the indoor fan is arranged in the volute-tongue air duct, and the indoor motor is arranged in the motor cavity; The indoor motor drives the indoor fan to rotate so that air flows through the indoor air inlet to the indoor heat exchanger to exchange heat with the indoor heat exchanger, and the air after heat exchange with the indoor heat exchanger flows through the volute air duct and out of the casing from the indoor air outlet; A fresh air volute is arranged in the casing and located at a side of the indoor fan away from the indoor motor, a fresh air cavity is formed in the fresh air volute, and the fresh air cavity is communicated with the outside; A fresh air fan is arranged in the fresh air cavity; A fresh air motor connected to the fresh air fan; The fresh air motor drives the fresh air fan to rotate so that outdoor air flows into the fresh air chamber and then flows into the room; A first water receiving tray, disposed on the base and used to receive condensed water flowing down from the indoor heat exchanger, wherein the first water receiving tray is disposed on the front side of the volute-tongue air duct; A second water receiving tray, disposed on the base and used to receive condensed water flowing down from the indoor heat exchanger, the second water receiving tray being disposed at the rear side of the volute tongue air duct; a drainage portion formed on the base and located on a side of the motor cavity away from the indoor fan; The first water receiving tray is in communication with the drainage portion, and water in the first water receiving tray flows into the drainage portion; One end of the second water receiving tray close to the drainage portion is connected to the drainage portion, and the water in the second water receiving tray flows into the drainage portion through the one end of the second water receiving tray close to the drainage portion; The bottom wall of the drainage part is provided with a drainage hole for drainage.

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