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 base which is provided with a volute tongue air channel and a motor cavity. The base comprises a front volute tongue; the first water pan is formed on the base, is arranged on the front sides of the volute tongue air duct and the motor cavity, and is provided with a first water pan rear wall; the first water pan rear wall comprises a first rear wall; the second rear wall and the first rear wall are sequentially arranged in the length direction of the main body, and the second rear wall is connected with the first rear wall; the front volute tongue at least comprises part of a first rear wall; the second rear wall comprises a motor cavity front side wall located on the front side of the motor cavity. The joint of the second rear wall and the first rear wall is located on the side, close to the indoor fan, of the motor cavity in the length direction of the body. In the height direction of the body, the end, connected with the second rear wall, of the first rear wall is lower than the second rear wall. Therefore, when the indoor unit of the air conditioner is slightly inclined, and the drainage pipe or the drainage hole is blocked, condensate water in the first water pan cannot flow into the motor cavity as much as possible.

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 gather at the drain hole and be 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 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 in front 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 cavity is the lowest point of the water receiving tray. When the drain pipe is blocked, the water usually enters the motor cavity. The water contacting the live parts is likely to cause a short circuit, and the water entering the motor cavity is likely to damage the indoor motor. 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 some extent.

[0006] To this end, 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 which is from one end to the other end; the main body at least includes a first cavity located inside the main body;

[0008] The main body includes:

[0009] A casing, on which an indoor air inlet and an indoor air outlet communicating with the first cavity are formed;

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

[0011] A base, on which a scroll tongue air duct and a motor cavity are formed, the scroll tongue air duct and the motor cavity are arranged in sequence along the length direction of the main body; the base includes a front scroll tongue for forming the scroll tongue air duct.

[0012] An indoor fan, disposed in the first cavity and on a 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 scroll tongue air duct.

[0014] The indoor motor is an external rotor motor, the external rotor motor includes a stator and a rotor, the stator is fixedly disposed in 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 scroll tongue air duct and flows out of the casing from the indoor air outlet.

[0016] A first water receiving tray, formed on the base and used for receiving the condensed water flowing down from the indoor heat exchanger, the first water receiving tray is disposed on the front side of the scroll tongue air duct and the motor cavity, and the first water receiving tray has a first water receiving tray rear wall located at the rear side of the first water receiving tray.

[0017] The first water receiving tray rear wall includes:

[0018] A first rear wall;

[0019] A second rear wall, arranged in sequence with the first rear wall in the length direction of the main body and connected to the first rear wall.

[0020] The front scroll tongue at least includes part of the first rear wall; the second rear wall includes a front side wall of the motor cavity located in front of the motor cavity.

[0021] Along the length direction of the main body, the connection part of the second rear wall and the first rear wall is located on a side of the motor cavity close to the indoor fan blade.

[0022] In the height direction of the main body, the end of the first rear wall connecting the second rear wall is lower than the second rear wall.

[0023] Setting the end of the first rear wall connecting the second rear wall lower than the second rear wall can make the end 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 between the first rear wall and the second rear wall is located on the side of the motor cavity 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 cavity as much as possible, but instead flows to the side of the motor cavity close to the volute tongue air duct, avoiding the influence of water on the indoor motor.

[0024] According to an embodiment of the present disclosure, the main body includes:

[0025] A fresh air volute, disposed inside the housing 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 communicates with the outside;

[0026] A fresh air fan, disposed inside the fresh air cavity;

[0027] A fresh air motor, connected to the fresh air fan;

[0028] 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.

[0029] Setting the fresh air volute, the fresh air fan and the fresh air motor can introduce outdoor fresh air into the room. Disposing 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.

[0030] According to an embodiment of the present disclosure, the end of the first rear wall connecting the second rear wall is the first end 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 is the third distance L3, and L3≥5mm. This can ensure that the third distance is not too small, so that when the air conditioner indoor unit is within the tilting range, the end of the first rear wall connecting the second rear wall is the lowest point of the side wall of the first water receiving tray. Also, since the connection between the first rear wall and the second rear wall is located on the side of the motor cavity 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 cavity as much as possible, but instead flows to the side of the motor cavity close to the volute tongue air duct, avoiding the influence of water on the indoor motor.

[0031] According to an embodiment of the present disclosure, the base includes a first water retaining rib and a second water retaining rib;

[0032] The first water retaining rib and the second water retaining rib are connected behind the rear wall of the first water receiving tray;

[0033] The first water retaining rib and the second water retaining rib are arranged in sequence along the length direction of the main body and are located between the volute tongue air duct and the motor cavity; the first water retaining rib is located on the side of the second water retaining rib away from the motor cavity;

[0034] An overflow groove is formed between the first water retaining rib and the second water retaining rib.

[0035] According to an embodiment of the present disclosure, the top end of the second water retaining rib is coplanar with the top end of the first water retaining rib or is located on the side of the top end of the first water retaining rib close to the top end of the main body, so that the second water retaining rib is 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.

[0036] According to an embodiment of the present disclosure, an overflow groove notch is provided at the rear end of the overflow groove, and one end of the overflow groove notch close to the volute tongue air duct is communicated with the volute tongue air duct, which is convenient for the water in the overflow groove to flow into the volute tongue air duct, can identify whether there is water overflow, and is convenient for dredging the drain pipe.

[0037] According to an embodiment of the present disclosure, the bottom surface of the overflow groove notch is not higher than the rear end of the bottom surface of the overflow groove.

[0038] According to an embodiment of the present disclosure, a fourth through hole for the water in the overflow groove notch to flow to the lower part of the base is formed on the bottom surface of the overflow groove notch.

[0039] According to an embodiment of the present disclosure, one end of the overflow groove notch close to the motor cavity is communicated with the motor cavity;

[0040] The motor cavity has a lowest point of the motor cavity, and the indoor motor has a lowest point 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 is the first height h1;

[0041] In the vertical direction, the overflow height of the overflow groove notch relative to the lowest point of the motor cavity is the second height h2; h1>h2, h2≥0mm.

[0042] According to an embodiment of the present disclosure, a wall-mounted air conditioner indoor unit is further proposed, including:

[0043] A main body, the length direction of the main body is from one side end to the other side end; the main body at least includes a first cavity located inside the main body;

[0044] The main body includes:

[0045] A casing, on which an indoor air inlet and an indoor air outlet communicated with the first cavity are formed;

[0046] An indoor heat exchanger, disposed in the first chamber;

[0047] A base, on which a scroll tongue air duct and a motor chamber are formed, the scroll tongue air duct and the motor chamber are arranged in sequence along the length direction of the main body; the base includes a front scroll tongue for forming the scroll tongue air duct;

[0048] An indoor fan, disposed in the first chamber and on the side of the indoor heat exchanger away from the indoor air inlet;

[0049] The indoor fan includes an indoor fan blade and an indoor motor; the indoor fan blade is disposed in the scroll tongue air duct;

[0050] The indoor motor is an outer rotor motor, the outer rotor motor includes a stator and a rotor, the stator is fixedly disposed in the motor chamber, 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;

[0051] The indoor motor drives the indoor fan blade to rotate so that air flows through the indoor air inlet to the indoor heat exchanger for heat exchange with the indoor heat exchanger, and the air after heat exchange with the indoor heat exchanger flows through the scroll tongue air duct and exits the housing through the indoor air outlet;

[0052] A first water receiving tray, formed on the base and used for receiving the condensed water flowing down from the indoor heat exchanger, the first water receiving tray is disposed on the front side of the scroll tongue air duct and the motor chamber, and the first water receiving tray has a first water receiving tray rear wall located at the rear side of the first water receiving tray;

[0053] The first water receiving tray rear wall includes:

[0054] A first rear wall;

[0055] A second rear wall, arranged in sequence with the first rear wall in the length direction of the main body and connected to the first rear wall;

[0056] The front scroll tongue at least includes a part of the first rear wall; the second rear wall includes a front side wall of the motor chamber located at the front side of the motor chamber;

[0057] Along the length direction of the main body, the connection part of the second rear wall and the first rear wall is located on the side of the motor chamber close to the indoor fan blade;

[0058] In the height direction of the main body, the end of the first rear wall connecting the second rear wall is lower than the second rear wall;

[0059] A drainage part, formed on the base, the drainage part is located on the side of the motor chamber away from the indoor fan blade, or the drainage part is located below the motor chamber and the drainage part and the motor chamber are isolated by a first partition;

[0060] The drainage part is communicated with the first water receiving tray; a drainage hole is provided on the bottom wall of the drainage part, and the water in the first water receiving tray is discharged through the drainage hole. Description of the Drawings

[0061] Figure 1 is a front view of the air conditioner indoor unit according to an embodiment of the present application;

[0062] Figure 2 is a perspective view of the air conditioner indoor unit according to an embodiment of the present application;

[0063] Figure 3 is a perspective view of a partial structure of the air conditioner indoor unit according to an embodiment of the present application;

[0064] Figure 4 is a sectional view of the air conditioner indoor unit according to an embodiment of the present application;

[0065] Figure 5 is an exploded view of a partial structure of the air conditioner indoor unit according to an embodiment of the present application;

[0066] Figure 6 is a partial structure diagram of the air conditioner indoor unit according to an embodiment of the present application;

[0067] Figure 7 is a structure diagram of the indoor fan according to an embodiment of the present application;

[0068] Figure 8 is a sectional view of the indoor fan according to an embodiment of the present application;

[0069] Figure 9 is a structure diagram of the base according to an embodiment of the present application;

[0070] Figure 10 is a sectional view of the base according to an embodiment of the present application;

[0071] Figure 11 is a sectional view of the air conditioner indoor unit according to an embodiment of the present application;

[0072] Figure 12 is a rear view of the base according to an embodiment of the present application;

[0073] Figure 13 is Figure 12 a schematic structural diagram of the position A in

[0074] Figure 14 is a partial structure diagram of the base according to an embodiment of the present application;

[0075] Figure 15 is a structure diagram of the base according to an embodiment of the present application;

[0076] Figure 16 is Figure 15 a schematic diagram of the structure at position B in

[0077] Figures 17 - 18 a cross-sectional view of the base according to an embodiment of the present application;

[0078] Figure 19 is Figure 18 a schematic diagram of the structure at position C in

[0079] Figure 20 a cross-sectional view of the base according to an embodiment of the present application;

[0080] Figure 21 a structural diagram of the base according to an embodiment of the present application;

[0081] Figure 22 is Figure 21 a schematic diagram of the structure at position D in

[0082] Figure 23 a cross-sectional view of the base according to an embodiment of the present application;

[0083] Figure 24 a rear view of the base according to an embodiment of the present application;

[0084] Figure 25 a structural diagram of the base according to an embodiment of the present application;

[0085] Figure 26 is Figure 25 a schematic diagram of the structure at position E in

[0086] Figure 27 a structural diagram of the base according to an embodiment of the present application;

[0087] Figure 28 is Figure 27 a schematic diagram of the structure at position F in

[0088] Figure 29 a cross-sectional view of the base according to an embodiment of the present application;

[0089] Figure 30 a rear view of the base according to an embodiment of the present application;

[0090] Figure 31 is Figure 30 a schematic diagram of the structure at position G in

[0091] Figure 32 a rear view of the base according to an embodiment of the present application;

[0092] Figure 33 is Figure 32 a schematic diagram of the structure at position H in

[0093] Figure 34 is the rear view of the base according to an embodiment of the present application;

[0094] Figure 35 is Figure 34 the schematic structural view of the structure at I in;

[0095] Figure 36 is the structural diagram of the base according to an embodiment of the present application;

[0096] Figure 37 is Figure 36 the schematic structural view of the structure at J in;

[0097] Figure 38 is the sectional view of the base according to an embodiment of the present application;

[0098] Figures 39 - 40 is the partial structural diagram of the base according to an embodiment of the present application;

[0099] Figure 41 is the sectional view of the base according to an embodiment of the present application;

[0100] Figure 42 is Figure 41 the schematic structural view of the structure at K in;

[0101] Figures 43 - 44 is the partial sectional view of the base according to an embodiment of the present application;

[0102] Figure 45 is the partial structural diagram of the base according to an embodiment of the present application.

[0103] In each of the above figures: main body 100; first cavity 101; casing 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; scroll tongue air duct 31; motor cavity 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 scroll tongue 351; rear scroll tongue 352; first end face of the scroll tongue air duct 353; first guiding part 361; first communicating 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 guiding part 37; first sub-guiding part 371; second sub-guiding part 372; fresh air volute 6. Detailed Implementation Manner

[0104] To make the objectives and implementation manners of this application clearer, the following will clearly and completely describe the exemplary implementation manners of this application with reference to the accompanying drawings in the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only a part of the embodiments of this application, rather than all the embodiments.

[0105] It should be noted that the brief description of terms in this application is only for facilitating the understanding of the subsequent described implementation manners, rather than intending to limit the implementation manners of this application. Unless otherwise specified, these terms should be understood in their ordinary and common meanings.

[0106] In this application, terms such as "first", "second", "third", etc. in the specification, claims and the above-mentioned accompanying 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 can be interchanged under appropriate circumstances.

[0107] 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 clearly listed components, but may include other components not clearly listed or inherent to these products or devices.

[0108] This application proposes a wall-mounted air conditioner indoor unit, which will be described below with reference to the accompanying drawings.

[0109] 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.

[0110] In this application, the wall-mounted air conditioner indoor unit can be hung on a wall or other support.

[0111] In this application, referring to Figures 1 - 3 , the wall-mounted air conditioner indoor unit can include a main body 100.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] In the present application, the height direction, length direction, and front-back direction of the main body can be perpendicular to each other.

[0116] In the present application, the indoor unit of the air conditioner can be horizontally arranged, that is, the length direction of the main body can be parallel to the horizontal plane.

[0117] In the present application, the indoor unit of the air conditioner can be inclined, that is, the length direction of the main body can form a certain angle with the horizontal plane.

[0118] In the present 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.

[0119] In the present application, referring to Figures 1 - 4 , the main body 100 can include a housing 1.

[0120] In the present application, referring to Figures 1 - 4 , an indoor air inlet 111 can be formed on the housing 1. The indoor air inlet 111 can be an entrance for air to enter the housing 1. The indoor air inlet 111 can communicate with the first cavity.

[0121] In the present application, the indoor air inlet 111 can be provided at the top of the housing.

[0122] In the present application, referring to Figures 1 - 4 , an indoor air outlet 112 can be formed on the housing 1. The indoor air outlet can be an exit for air to flow out of the housing 1. The indoor air outlet can communicate with the first cavity.

[0123] In the present application, in the height direction of the main body, the indoor air inlet is above the indoor air outlet.

[0124] In the present application, the indoor air outlet can be located at the lower front side of the housing.

[0125] In the present application, referring to Figures 1 - 4 , the main body 100 can include an indoor heat exchanger 21. The indoor heat exchanger 21 can be arranged in the first cavity. The indoor heat exchanger 21 can be used for heat exchange with the air in the first cavity.

[0126] In the present application, referring to Figures 1 - 4 , the main body 100 can include an indoor fan 22. The indoor fan can be arranged in the first cavity. The indoor fan can be used to provide power for the flow of air.

[0127] In the present application, the indoor fan can be located on the side of the indoor heat exchanger away from the indoor air inlet.

[0128] In the present application, the indoor fan causes air to enter the first cavity 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.

[0129] In this application, the outdoor unit of the air conditioner may include an outdoor housing. An outdoor accommodation space may be provided inside the outdoor housing.

[0130] In this application, the outdoor unit of the air conditioner may include an outdoor heat exchanger. The outdoor heat exchanger may be disposed inside the outdoor accommodation space.

[0131] In this application, the outdoor unit of the air conditioner may include an outdoor fan. The outdoor fan may be disposed inside the outdoor accommodation space.

[0132] In this 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.

[0133] In this 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 inside the outdoor accommodation space out of the outdoor accommodation space.

[0134] In this 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 heated outdoor air flows out of the outdoor accommodation space through the outdoor air outlet.

[0135] In this application, the air conditioner may include a compressor. The compressor may be disposed inside the outdoor accommodation space.

[0136] In this application, the air conditioner may include a throttling device. The throttling device is used for throttling. The throttling device may be disposed inside the outdoor accommodation space.

[0137] In this application, among the indoor heat exchanger and the outdoor heat exchanger, one of them is a condenser and the other is an evaporator.

[0138] In this 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 supplies refrigerant to the air that has been conditioned and heat-exchanged.

[0139] In this application, the compressor compresses the refrigerant gas in a low-temperature and low-pressure state and discharges the refrigerant gas in a high-temperature and high-pressure state. The discharged refrigerant gas flows into the condenser.

[0140] In this application, the condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0141] In this 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.

[0142] 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 a refrigeration effect by exchanging heat with the material to be cooled by utilizing the latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner can adjust the temperature of the indoor space.

[0143] 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.

[0144] In the present application, referring 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 housing. A fresh air chamber may be formed inside the fresh air volute, and the fresh air chamber can communicate with the outside.

[0145] The fresh air module may include a fresh air fan, and the fresh air fan can be arranged inside the fresh air chamber.

[0146] 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.

[0147] In the present application, the fresh air motor drives the fresh air fan to rotate so that outdoor air flows into the first chamber through the fresh air chamber and mixes with the indoor air entering the first chamber, and the mixed air flows into the room through the indoor air outlet.

[0148] In the present application, a fresh air outlet may be formed on the housing. 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.

[0149] In the present application, referring to Figure 6 , the main body may include a base 3. A volute tongue air duct 31 is formed on the base 3.

[0150] In the present application, a motor chamber 32 may be formed on the base.

[0151] In the present application, the volute tongue air duct 31 and the motor chamber 32 may be arranged in sequence along the length direction of the main body.

[0152] In the present application, referring to Figures 7 - 8 , the indoor fan may include an indoor fan 221. The indoor fan can be arranged inside the volute tongue air duct.

[0153] In the present application, referring to Figures 7 - 8 , the indoor fan may include an indoor motor 222. The indoor motor can be located inside the motor chamber.

[0154] 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 with the indoor heat exchanger, and the air after heat exchange with the indoor heat exchanger flows through the volute tongue air duct and out of the casing through the indoor air outlet.

[0155] In the present application, the main body may include a water receiving tray 33. The water receiving tray 33 may be formed on the base 3. The water receiving tray 33 may be used to receive the condensed water left on the indoor heat exchanger.

[0156] In the present application, referring to Figure 9 , the main body may include a drainage part 34. The drainage part may be formed on the base.

[0157] In the present 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.

[0158] In the present 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 drained through the drainage hole.

[0159] Setting the drainage part on the side of the motor cavity away from the indoor fan can prevent the condensed water in the drainage part from flowing to the indoor motor when the water accumulates in the drainage part, avoiding water splashing on the indoor motor and preventing the indoor motor from being burned out after being powered on, ensuring the normal operation and service life of the indoor motor.

[0160] In the present 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.

[0161] In the present 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 arranged 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.

[0162] In the present application, when the indoor motor is an outer rotor motor, there is a gap between the stator and the rotor.

[0163] In the present application, when the indoor motor is an outer rotor motor, a drainage part is arranged on the side of the motor cavity away from the indoor fan, so that when water gathers in the drainage part, the condensed water in the drainage part will not flow to the indoor motor, thereby preventing water from splashing onto the indoor motor and preventing splashed water from entering the stator coil, etc. through the gap between the rotor and the stator, thereby preventing water from burning out the indoor motor after power is turned on, thereby ensuring the normal operation and life of the indoor motor.

[0164] In the present application, the fresh air volute can be arranged on the side of the indoor fan away from the indoor motor. The fresh air volute, the fresh air fan and the fresh air motor can introduce outdoor fresh air into the room, and the fresh air volute and the drainage part are arranged on both sides of the indoor fan, which can adapt to the arrangement of the indoor unit of the air conditioner and avoid interference between the installation of the fresh air volute and the drainage part.

[0165] In the present application, the main body may include a drain pipe, which may be connected to the base and communicated with the drain hole to drain water out of the drain portion.

[0166] In this application, reference is made 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 at the front side of the volute tongue air duct.

[0167] In the present application, the first water receiving tray may be a trough body.

[0168] In this application, reference is made 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 component of the rear side wall of the first water receiving tray.

[0169] In this application, reference is made to Figures 9 - 11 , the indoor heat exchanger may include a first stage heat exchanger 211. The first stage heat exchanger may be located at the front bottom of the indoor heat exchanger.

[0170] The bottom end of the first section heat exchanger can be located in the first water receiving pan. The first water receiving pan can receive condensed water flowing down from the first section heat exchanger.

[0171] In this application, reference is made to Figures 9 - 11 , the indoor heat exchanger may include a second stage heat exchanger 212. The bottom end of the second stage heat exchanger may be connected to the top end of the first stage heat exchanger.

[0172] In the present application, the second section heat exchanger can be arranged tilted. In the front-to-back direction of the main body, the top end of the second section heat exchanger can be located behind the bottom end of the second section heat exchanger.

[0173] In the present application, the condensed water on the second stage heat exchanger can flow to the first stage heat exchanger and then flow into the first water receiving pan.

[0174] In this application, reference is made toFigures 9 - 11 The water receiving tray may include a second water receiving tray 332. The second water receiving tray 332 may be located at the rear side of the volute tongue air duct.

[0175] In the present application, in the longitudinal 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.

[0176] In the present application, the second water receiving tray may be a trough.

[0177] In the present application, referring to Figures 9 - 11 , the indoor heat exchanger may include a third section heat exchanger 213. The top end of the third section heat exchanger may be connected to the top end of the second section heat exchanger. The third section heat exchanger may be located behind the second section heat exchanger.

[0178] In the present application, the third section heat exchanger may be inclined. In the front-rear direction of the main body, the top end of the third section heat exchanger may be located in front of the bottom end of the third section heat exchanger.

[0179] In the present application, the bottom end of the third section heat exchanger may be located in the second water receiving tray.

[0180] In the present application, the condensed water on the third section heat exchanger may flow into the second water receiving tray.

[0181] In the present application, the indoor air inlet may be located above the indoor heat exchanger.

[0182] In the present application, the indoor fan may be located behind the first section heat exchanger. The indoor fan may be located below the top ends of the second section heat exchanger and the third section heat exchanger.

[0183] In the present application, referring to Figures 9 - 11 , the base 3 may include a rear volute tongue 352. Along the air flow path, a section of the rear volute tongue 352 close to the indoor air inlet is a component of the front side wall of the second water receiving tray.

[0184] In the present application, referring to Figures 9 - 11 , a first guiding part 361 may be formed on the base. The first guiding part may be located on the side of the indoor fan away from the motor cavity.

[0185] In the present application, the first guiding part may include a first guiding part side wall. The first guiding part may include a first guiding part bottom wall. The drainage part may be a trough surrounded by the first guiding part side wall and the first guiding part bottom wall.

[0186] In the present application, along the longitudinal direction of the main body, both ends of the first water receiving tray are respectively communicated with the drainage part and the first guiding part.

[0187] The first water receiving tray is connected to the drainage part, enabling the condensed water received by the first water receiving tray to flow into the drainage part and be discharged through the drainage holes.

[0188] In the present application, along the length direction of the main body, one end of the second water receiving tray far from the drainage part is connected to the first diversion part. This enables 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 also avoiding problems such as water leakage from the indoor unit of the air conditioner and water blowing from the indoor air outlet due to the inability to discharge the water in the second water receiving tray, which may affect the user experience and reduce the market competitiveness of the indoor unit of the air conditioner.

[0189] In the present application, referring to Figure 12 , a second diversion part 37 is formed on the base. The second diversion part 37 can be located at the rear side of the base to receive the condensed water on the base.

[0190] In the present application, one end of the second diversion part can be connected to the first diversion part, enabling the water received by the second diversion part to flow into the first water receiving tray through the first diversion part, and then flow into the drainage part and be discharged through the drainage holes.

[0191] In the present application, along the length direction of the main body, the second diversion part is located on the side of the first diversion part closer to the drainage part. One end of the second diversion part close to the first diversion part is connected to the first diversion part.

[0192] Generally, the indoor unit of the air conditioner is installed horizontally. To facilitate drainage of the drainage part, the indoor unit of the air conditioner is installed obliquely. The end of the indoor unit of the air conditioner where the drainage part is located can be set slightly lower, or due to limited installation tools, it is easy to install it obliquely. To facilitate drainage, usually the end of the indoor unit of the air conditioner where the drainage part is located is set 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.

[0193] In the present application, referring 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.

[0194] In the present application, referring 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.

[0195] In the present 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 closer to the indoor fan.

[0196] In the present application, referring toFigures 13 - 17 , the second water guiding part 37 can be arranged below the first through hole 3321 to receive the water flowing out of the first through hole. The water in the second water receiving tray can flow to the second water guiding part through the first through hole, then the water flows to the first water receiving tray through the first water guiding part, and then the water flows into the drainage part and is discharged through the drainage hole.

[0197] In this application, a first through hole is arranged at one end of the second water receiving tray close to the drainage part, so that when the air conditioner indoor unit is inclined and the end of the air conditioner indoor unit 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. And at the same time, it can avoid directly arranging a channel between the second water receiving tray and the drainage part, avoiding the notch space 363 provided on the base for the refrigerant inlet and outlet pipes of the indoor heat exchanger occupied by the arranged channel, and avoiding the increase in the overall size of the main body caused by occupying the notch space.

[0198] 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.

[0199] When the diameter of the indoor motor with a motor rotating shaft is relatively large, or when the arranged indoor motor is an outer rotor motor, due to the relatively large diameter of the indoor motor, it is impossible to directly arrange a channel connection between the second water receiving tray and the drainage part. When directly arranging 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, arranging 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 water guiding part, the first water guiding 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.

[0200] 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 arranged on the side of the motor cavity far 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.

[0201] In this application, referring to Figures 13 - 17 , the size of the drainage part in the length direction of the main body can be the first length L1.

[0202] In this application, the first length L1 ≥ the first parameter value. The first parameter value can be any value within 8 mm - 12 mm. The first parameter value can be 10 mm. L1 ≥ 10 mm. This can prevent the width of the drainage part from being too small, which may cause the opening at the connection end between the drainage part and the water receiving tray to be too small and affect the entry of water from the water receiving tray into the drainage part, thus ensuring the drainage efficiency.

[0203] 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 can prevent the width of the drainage part from being too large, which may lead to a larger length dimension of the main body and avoid wasting the length dimension of the main body.

[0204] 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.

[0205] 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.

[0206] 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°.

[0207] Setting α1 ≥ 2° can prevent the first included angle from being too small. When the main body is horizontally installed, it is convenient for the water flow in the second diversion part to flow into the first diversion part, and it is convenient to flow the water into the drainage part and discharge it from the drainage part.

[0208] When the indoor unit of the air conditioner is inclined and the end with the drainage part is slightly lower, due to the length dimension of the indoor unit of the air conditioner, the inclination angle of the indoor unit of the air conditioner will not be very large under the condition that it can be distinguished by the human eye. 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, which can make the water flow in the second diversion part flow into the first diversion part, and it is convenient to flow the water into the drainage part and discharge it from the drainage part, solving the problem that it is difficult to drain the water in the second water receiving tray and the second diversion part caused by the slightly lower end of the drainage part, preventing water from accumulating in the second water receiving tray and the second diversion part, avoiding mildew and bacteria growth that may affect the health of users, and avoiding the problems of water leakage from the indoor unit of the air conditioner and water blowing from the indoor air outlet caused by the failure to drain the water in the second water receiving tray, avoiding affecting the user experience and reducing the market competitiveness of the indoor unit of the air conditioner.

[0209] 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 water guiding part can be conveniently discharged into the drainage part, and the drainage hole is at the lowest position of the drainage part, facilitating the discharge of water in the drainage part.

[0210] In this application, referring to Figures 18 - 19 , the point on the main body closest to the bottom end of the main body from the end of the second water guiding part far from the first water guiding part is the first point D1. The point on the main body closest to the bottom end of the main body from the end of the second water guiding part connecting the first water guiding part is the second point D2.

[0211] 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 = tanα1.

[0212] 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, avoiding the second water guiding part being inclined less relative to the length direction of the main body, avoiding the end of the second water guiding part close to the first water guiding part being too high when the main body is inclined, resulting in the water in the second water guiding part being unable to enter the first water guiding part, and avoiding the difficulty of discharging the water in the second water guiding part.

[0213] 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. Avoiding H being too small resulting in α1 being too small, avoiding the second water guiding part being inclined less relative to the length direction of the main body, avoiding the end of the second water guiding part close to the first water guiding part being too high when the main body is inclined, resulting in the water in the second water guiding part being unable to enter the first water guiding part, and avoiding the difficulty of discharging the water in the second water guiding part. And avoiding the size of H being too small making the inclination height of the indoor unit corresponding to α1 not obvious, being able to limit the inclination angle of the air conditioner indoor unit within 2°, to ensure the function of the second water guiding part to guide the water into the first water guiding part.

[0214] In this application, L2 can be any value between 500 mm and 800 mm.

[0215] In this application, L2 can be 640 mm.

[0216] In this application, when L2 is 640 mm, the minimum value of H can be 23 mm.

[0217] 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.

[0218] 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.

[0219] In this application, reference is made to Figures 18 - 20 , the base includes a base body 301. The base may include a second deflector 302. The second deflector is connected to the rear side of the base body. The second deflector and the base body form a second water deflector portion.

[0220] In this application, the bottom end of the second deflector 302 is connected to the base body. Along the front-rear direction of the main body, the top end of the second deflector is located behind the bottom end of the second deflector, so that the second deflector and the base body can form a second water deflector portion that can receive water.

[0221] In this application, the first water receiving tray may be communicated with the drainage portion, and the water in the first water receiving tray can flow into the drainage portion.

[0222] In this application, one end of the second water receiving tray close to the drainage portion may be communicated with the drainage portion, and the water in the second water receiving tray can flow into the drainage portion through the end of the second water receiving tray close to the drainage portion.

[0223] In this application, a drain hole may be provided on the bottom wall of the drainage portion. The drain hole 341 is used for draining water. The drain hole can drain the water in the drainage portion.

[0224] Setting one end of the second water receiving tray close to the drainage portion to be communicated with the drainage portion can enable the water in the second water receiving tray to flow into the drainage portion through the end of the second water receiving tray close to the drainage portion, 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.

[0225] In this application, reference is made to Figures 21 - 23 , the main body may include a first communication portion 362. The first communication portion 362 may be formed on the base. The first communication portion may be located behind the drainage portion.

[0226] In this application, the first communication portion may be a communication channel.

[0227] In this application, the first communication portion may be communicated with the drainage portion. The front bottom end of the first communication portion may be communicated with the rear side of the drainage portion.

[0228] In this application, one end of the second water receiving tray close to the drainage portion may be communicated with the first communication portion. One end of the second water receiving tray close to the drainage portion may be communicated with the drainage portion through the first communication portion, and the water in the second water receiving tray can flow into the drainage portion through the first communication portion.

[0229] Providing the first communication portion can directly communicate the second water receiving tray and the drainage portion, reduce the drainage path length of the second drainage tray, and reduce the drainage pressure of the first water receiving tray.

[0230] In the present application, with reference to Figures 21 - 24 , a first water diversion portion 361 is formed on the base. The first water diversion portion can be disposed on a side of the indoor fan away from the motor chamber.

[0231] In the present application, both ends of the first water receiving tray along the length direction of the main body can be communicated with the drainage portion and the first water diversion portion respectively.

[0232] In the present application, in the length direction of the main body, one end of the second water receiving tray away from the drainage portion can be communicated with the first water diversion portion.

[0233] It can enable the water in the second water receiving tray to flow into the first water receiving tray through the first water diversion portion, and then flow into the drainage portion through the first water receiving tray.

[0234] In the present application, a notch space 363 for the refrigerant inlet and outlet pipes of the indoor heat exchanger to pass through is provided on the base. The setting of the first communication portion reduces the size of the notch space. The reduction of the notch space is likely to cause an increase in the overall size of the main body, but it reduces the possibility of overflow of the first water receiving tray caused by the second water receiving tray winding around the second water diversion portion, the first water diversion portion and the first water receiving tray and then draining to the drainage portion, improving the user experience.

[0235] In the present application, with reference to Figures 21 - 24 , a second water diversion portion is formed on the base. The second water diversion portion 37 can be located at the rear side of the base to receive the condensed water on the base.

[0236] In the present application, along the length direction of the main body, the second water diversion portion can be located on a side of the first water diversion portion close to the drainage portion. One end of the second water diversion portion can be communicated with the first water diversion portion, so that the water received by the second water diversion portion can flow into the first water receiving tray through the first water diversion portion, and then flow into the drainage portion and be discharged through the drainage hole.

[0237] In the present application, the second water diversion portion is inclined with respect to the length direction of the main body, and one end of the second water diversion portion connected to the first water diversion portion is the end of the second water diversion portion close to the bottom end of the main body.

[0238] In the present application, with reference to Figures 21 - 24 , the extension direction of the second water diversion portion and the length direction of the main body form a first angle α1.

[0239] In the present application, α1 ≥ a third parameter value. The third parameter value can be any value between 1° and 3°. The third parameter value can be 2°. α1 ≥ 2°.

[0240] Setting α1 ≥ 2° can avoid the first angle being too small. When the main body is horizontally installed, it is convenient for the water in the second water diversion portion to flow into the first water diversion portion, and it is convenient to flow the water into the drainage portion and discharge it from the drainage portion.

[0241] Set 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, it can ensure that 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 flow of water to the drainage part and discharging it from the drainage part, solving the problem of difficult drainage of water in the second diversion part caused by the slightly lower end of the drainage part, avoiding the accumulation of water in the second diversion part, and preventing mildew and bacterial growth from affecting the user's health.

[0242] In the present 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 connected to 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.

[0243] In the present application, referring 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 connected through the second through hole, facilitating the connection between the first communication part and the second diversion part.

[0244] In the present 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, enabling the water in the second diversion part to flow towards the first communication part and the first diversion part respectively.

[0245] In the present 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.

[0246] In the present 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.

[0247] In the present application, the adjacent ends of the first sub - diversion part and the second sub - diversion part are connected.

[0248] In the present application, the first sub - diversion part and the second sub - diversion part are inclined relative 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.

[0249] Setting both the first sub - diversion part and the second sub - diversion part to be inclined relative 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 first communication part and the first diversion part respectively.

[0250] In the present application, the included angle between the extension direction of the first sub - diversion part and the length direction of the main body is the second angle α2.

[0251] In this 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°. To avoid the second included angle from being too small, when the main body is installed horizontally or tilted relative to the horizontal plane, it can ensure that the end of the first sub-diversion part close to the first connection part does not exceed the end of the first sub-diversion part far from the first connection part, enabling the water flow in the first sub-diversion part to flow into the first connection part, facilitating the water flow to the drainage part and discharging from the drainage part.

[0252] In this 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.

[0253] In this 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°. To avoid the third included angle from being too small, when the main body is installed horizontally or tilted relative to the horizontal plane, it can ensure 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, enabling the water flow in the second sub-diversion part to flow into the first diversion part, facilitating the water flow to the drainage part and discharging from the drainage part.

[0254] In this 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 tilted relative to the horizontal plane.

[0255] In this application, an opening can be provided at the rear of the first diversion part.

[0256] In this application, refer 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 separated by the first partition 364.

[0257] The drainage part can communicate with the first water receiving tray. Drainage holes 341 can be provided on the bottom wall of the drainage part. The water in the first water receiving tray is discharged through the drainage holes.

[0258] Setting the drainage part below the motor cavity and separating it from the motor cavity by the 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, ensuring the normal operation and lifespan of the indoor motor.

[0259] In the present application, when the drainage part is located below the motor cavity and is isolated from the motor cavity by the first partition, the indoor motor can be an outer rotor motor. When the indoor motor is an outer rotor motor, the drainage part is arranged below the motor cavity and is isolated from the motor cavity by the first partition, so that when water gathers in the drainage part, the condensed water in the drainage part will not flow to the indoor motor, so as to avoid water splashing onto the indoor motor, and avoid splashing water entering the stator coil through the gap between the rotor and the stator, so as to avoid water causing the indoor motor to burn out after power is turned on, thereby ensuring the normal operation and life of the indoor motor.

[0260] In this application, reference is made to Figures 27 - 29 The bottom wall of the first water receiving tray may be provided with a third through hole 3311. The first water receiving tray may be connected to the drainage portion through the third through hole, so that the first water receiving tray and the drainage portion are directly connected.

[0261] In the present 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 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.

[0262] In the present application, the main body includes a first air guide portion 361. The first air guide portion 361 may be formed on the base. The first air guide portion 361 may be disposed on a side of the indoor fan away from the motor cavity.

[0263] In the present application, along the length direction of the main body, one end of the first water receiving tray away from the drainage portion is connected to the first guide portion.

[0264] In the present application, along the length direction of the main body, one end of the second water receiving tray away from the drainage portion is connected to the first guide portion, so that the water in the second water receiving tray can flow through the first guide portion to the first water receiving tray and be discharged into the drainage portion.

[0265] In the present application, a second guide portion 37 is formed on the rear side of the base. The second guide portion 37 is used to receive condensed water on the base.

[0266] Along the length direction of the main body, the second guide part is located on one side of the first guide part close to the drainage part. One end of the second guide part close to the first guide part is connected to the first guide part, so that water on the second guide part can flow into the first guide part and then into the drainage part.

[0267] In this application, reference is made to Figures 32 - 33 A first through hole 3321 is provided on the bottom wall of the second water receiving tray for water to flow from the second water receiving tray to the rear of the base.

[0268] In this application, the second water guiding 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 water guiding part, so that when the air conditioner indoor unit is tilted, the water in the second water receiving tray can be normally discharged.

[0269] 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 air conditioner indoor unit is tilted and the end of the air conditioner indoor unit 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.

[0270] In this application, referring 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.

[0271] In this application, the end of the second water guiding part far from the first water guiding part can be communicated with the drainage part, facilitating the water in the second water guiding part to flow to the drainage part from both ends and increasing the drainage efficiency of the second water guiding part.

[0272] In this application, referring to Figure 30 , when the end of the second water guiding part far from the first water guiding part is communicated with the drainage part, the second water guiding part can include a first sub-water guiding part 371. The first sub-water guiding part can be located at one end of the second water guiding part close to the drainage part.

[0273] In this application, when the end of the second water guiding part far from the first water guiding part is communicated with the drainage part, the second water guiding part includes a second sub-water guiding part 372. The first sub-water guiding part can be located at one end of the second water guiding part close to the first water guiding part.

[0274] In this application, the adjacent ends of the first sub-water guiding part and the second sub-water guiding part are connected.

[0275] In this application, the first sub-water guiding part and the second sub-water guiding part are inclined with respect to the length direction of the main body. The end of the first sub-water guiding part connecting the second sub-water guiding part is the end of the first sub-water guiding part far from the bottom end of the main body. The end of the second sub-water guiding part connecting the first sub-water guiding part is the end of the second sub-water guiding part far from the bottom end of the main body.

[0276] Setting both the first sub-water guiding part and the second sub-water guiding part to be inclined with respect to the length direction of the main body facilitates guiding the water on the first sub-water guiding part and the second sub-water guiding part to the drainage part and the first water guiding part respectively.

[0277] In this application, referring to Figure 30 , the included angle between the extending direction of the first sub-water guiding part and the length direction of the main body is the second angle α2.

[0278] In this 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°. To avoid the second 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 ensure 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 far from the drainage part, enabling the water flow in the first sub-diversion part to flow into the drainage part, facilitating the flow of water into the drainage part and discharging it from the drainage part.

[0279] In this 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.

[0280] In this 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°. To avoid 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 ensure 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, enabling the water flow in the second sub-diversion part to flow into the first diversion part, facilitating the flow of water into the drainage part and discharging it from the drainage part.

[0281] In this application, the end of the second diversion part far from the first diversion part can be isolated from the drainage part.

[0282] In this application, when the end of the second diversion part far from the first diversion part is isolated from the drainage part, the second diversion part is inclined relative 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, facilitating the diversion of water to the first diversion part.

[0283] In this application, when the end of the second diversion part far from the first diversion part is isolated from the drainage part, 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. α1 ≥ 2°.

[0284] Setting α1 ≥ 2° can avoid the first included angle from being too small, facilitating the flow of water in the second diversion part into the first diversion part when the main body is horizontally installed, and facilitating the flow of water into the drainage part and discharging it from the drainage part.

[0285] 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 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 flow in the second diversion part to flow into the first diversion part, facilitating the flow of water into the drainage part and discharging it from the drainage part, solving the problem of difficult drainage of water in the second diversion part caused by the slightly lower end of the drainage part, avoiding the accumulation of water in the second diversion part, and avoiding mildew and bacteria growth that affect the health of users.

[0286] In the present application, the base may include a front scroll tongue 351. The front scroll tongue can be used to form a scroll tongue air duct 31.

[0287] In the present application, the base may include a rear scroll tongue 352. The rear scroll tongue 352 can be used to form a scroll tongue air duct.

[0288] In the present application, the main body may include a first water receiving tray 331. The first water receiving tray can be formed on the base 3. The first water receiving tray can receive the condensed water flowing down from the indoor heat exchanger.

[0289] In the present application, a water receiving tray can be formed on the base, and the water receiving tray is used to receive the condensed water flowing down from the indoor heat exchanger. The water receiving tray can include a first water receiving tray.

[0290] In the present application, the indoor heat exchanger may include a first section of heat exchanger. The bottom end of the first section of heat exchanger can be located within the first water receiving tray. The condensed water on the first section of heat exchanger can flow onto the first water receiving tray.

[0291] In the present application, the indoor heat exchanger may include a second section of heat exchanger, and the condensed water on the second section of heat exchanger can flow onto the first water receiving tray.

[0292] In the present application, the first water receiving tray can be located in front of the scroll tongue air duct. The first water receiving tray can be located on the front side of the motor chamber.

[0293] In the present application, referring 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 can be located at the rear side of the first water receiving tray.

[0294] In the present application, due to the limitation of the fresh air module, generally a drain hole and a drain pipe are 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, only a drain hole can be arranged on one side of the air conditioner indoor unit and the drain hole is arranged on the side close to the indoor motor; in order to ensure smooth drainage, usually the air conditioner indoor unit is installed horizontally or inclined 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 scroll 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 inclined, 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 circuit is likely to occur, and when water enters the motor chamber, it is likely to damage the indoor motor.

[0295] In the present application, referring to Figure 37 , the first water receiving tray rear wall may include a first rear wall 33121.

[0296] In the present application, with reference to Figure 37 , the rear wall of the first water receiving tray may include a second rear wall 33122.

[0297] In the present application, the second rear wall and the first rear wall may be arranged in sequence in the length direction of the main body. The second rear wall may be connected to the first rear wall.

[0298] In the present application, the front scroll 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 scroll tongue.

[0299] In the present 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.

[0300] 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.

[0301] In the height direction of the main body, the first rear wall may be lower than the second rear wall.

[0302] In the present application, setting the end of the first rear wall connecting the second rear wall to be lower than the second rear wall can make the end 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 made not to flow into the motor chamber as much as possible, but to flow to the side of the motor chamber close to the scroll tongue air duct, avoiding the influence of water on the indoor motor.

[0303] In the present application, when the indoor motor is an external rotor motor, setting the end of the first rear wall connecting the second rear wall to be lower than the second rear wall can make the end 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 made not to flow into the motor chamber as much as possible, but to flow to the side of the motor chamber close to the scroll tongue air duct, avoiding the influence of water on the indoor motor.

[0304] In the present application, with reference to Figure 38 , the end of the first rear wall connecting the second rear wall may be a 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 a third distance L3.

[0305] In this application, L3 ≥ the sixth parameter value. The sixth parameter value can be any value within 5 mm - 7 mm. The sixth parameter value can be 5 mm. L3 ≥ 5 mm. This can ensure that the third distance is not too small, and when the air conditioner indoor unit is within the tilt range, the end where the first rear wall is connected to the second rear wall is the lowest point of the side wall of the first water receiving tray. Also, since the connection between the first rear wall and the second rear wall is located on the side of the motor cavity close to the indoor fan, when the drain pipe or the drain hole is blocked, the condensed water in the first water receiving tray can be prevented from flowing into the motor cavity as much as possible, but instead flows to the side of the motor cavity close to the volute tongue air duct, avoiding the impact of water on the indoor motor.

[0306] In this application, in the front - rear direction of the main body, the first rear wall and the front side wall of the motor cavity can be arranged offset from each other.

[0307] In the front - rear direction of the main body, the front side wall of the motor cavity can be located in front 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 in front of the indoor fan in the front - rear direction of the main body. Therefore, setting the front side wall of the motor cavity in front of the first rear wall can meet the installation requirements of the outer - rotor motor. Setting the front side wall of the motor cavity in front 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, it can reduce the gap between the rotor and the fan and the communication opening, and can reduce the entry of overflowing water or dust into the motor cavity.

[0308] In this application, referring to Figure 39 , the base can include a first water - retaining rib 365.

[0309] In this application, referring to Figure 39 , the base can include a second water - retaining rib 366.

[0310] In this 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.

[0311] In this 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 divert the condensed water.

[0312] In this application, the first water - retaining rib and the second water - retaining rib are the side walls of the overflow groove.

[0313] In this application, the top end of the second water retaining rib can be coplanar with the top end of the first water retaining rib.

[0314] In this 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. So that the second water retaining rib is 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.

[0315] In this application, refer to Figures 39 - 42 , a notch 368 of the overflow trough can be provided at the rear end of the overflow trough 367.

[0316] In this application, one end of the overflow trough notch close to the volute tongue air duct can be communicated with the volute tongue air duct, which is convenient for the water in the overflow trough to flow into the volute tongue air duct, can identify whether there is water overflow, and is convenient for dredging the drain pipe.

[0317] In this application, the bottom surface of the overflow trough notch can be not higher than the rear end of the bottom surface of the overflow trough, so that the water in the overflow trough can flow into the overflow trough notch.

[0318] In this application, refer to Figure 40 , a fourth through hole 3681 for the water in the overflow trough notch to flow to the lower part of the base can be formed on the bottom surface of the overflow trough notch, and the water in the overflow trough notch can flow out of the overflow trough notch through the fourth through hole.

[0319] In this application, one end of the overflow trough notch close to the motor cavity can be communicated with the motor cavity, which is convenient for the water in the motor cavity to flow out of the motor cavity, prevents the water flowing into the motor cavity from accumulating in the motor cavity, and prevents the water from touching the indoor motor and damaging the indoor motor.

[0320] In this application, refer to Figures 43 - 44 , the motor cavity can 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 can be a first height h1.

[0321] In this application, the first height h1 ≥ the seventh parameter value. The seventh parameter value can be any value in 5 mm - 7 mm. The seventh parameter value can be 5 mm. The first height h1 ≥ 5 mm. This can prevent the first height from being too low, which may cause the indoor motor to be too close to the lowest point of the motor cavity, and when there is water in the motor cavity, it is easy for the indoor motor to contact the water and be damaged.

[0322] In this application, in the vertical direction, the overflow height of the overflow trough notch relative to the lowest point of the motor cavity is a second height h2.

[0323] In this application, the second height h2 ≥ the eighth parameter value. The eighth parameter value can be any value in the range of 0 mm to 2 mm. The eighth parameter value can 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 into the volute tongue air duct through the overflow groove notch.

[0324] In this application, h1 > h2, which can prevent the water in the motor cavity from contacting the indoor motor before reaching the overflow height, avoiding the indoor motor being affected by water.

[0325] In this application, the base may include a first end face 353 of the volute tongue air duct at one end of the volute tongue air duct close to the motor cavity.

[0326] In this 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.

[0327] In this application, referring 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.

[0328] In this application, the fourth distance L4 ≤ the ninth parameter value. The ninth parameter value can be any value in the range of 8 mm to 12 mm. The ninth parameter value can be 10 mm. The fourth distance L4 ≤ 10 mm, avoiding excessive deviation of the connection of the first rear wall and the second rear wall towards the volute tongue air duct side, avoiding excessive height of the front volute tongue, and avoiding abnormal noise in the volute tongue air duct.

[0329] In this 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.

[0330] In this 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.

[0331] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of this application, rather than to limit it; although this 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 this application.

[0332] For ease of explanation, the above description has been presented in connection with specific embodiments. However, the foregoing exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations are possible in light of the above teachings. The selection and description of the above embodiments were made to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments 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 to the other side end; the main body at least includes a first cavity located inside the main body; The subject includes: a casing having an indoor air inlet and an indoor air outlet formed thereon and communicating with the first cavity; 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 length direction of the main body; the base includes a front volute tongue for forming the volute tongue air duct; 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 in 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 pan, formed on the base and used to receive condensed water flowing down from the indoor heat exchanger, the first water receiving pan being arranged at the front side of the volute air duct and the motor cavity, and the first water receiving pan having a first water receiving pan rear wall located at the rear side of the first water receiving pan; The rear wall of the first water receiving tray comprises: first posterior wall; a second rear wall, which is sequentially arranged with the first rear wall in the length direction of the main body and connected with the first rear wall; The front volute tongue includes at least a portion of the first rear wall; the second rear wall includes a front side wall of the motor cavity located at the front side of the motor cavity; Along the length direction of the main body, the connection between the second rear wall and the first rear wall is located on a side of the motor cavity close to the indoor fan; In the height direction of the main body, an end portion of the first rear wall connected to the second rear wall is lower than the second rear wall.

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 end of the first rear wall connected to the second rear wall is the first end 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 of the second rear wall is a third distance L3, L3 ≥ 5mm.

4. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The base comprises a first water retaining rib and a second water retaining rib; The first water retaining rib and the second water retaining rib are connected to the rear of the rear wall of the first water receiving tray; The first water retaining rib and the second water retaining rib are sequentially arranged along the length direction of the main body and are located between the volute tongue air duct and the motor cavity; the first water retaining rib is located on a side of the second water retaining rib away from the motor cavity; An overflow groove is formed between the first water retaining rib and the second water retaining rib.

5. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that: The top end of the second water retaining rib is coplanar with the top end of the first water retaining rib or is located on a side of the top end of the first water retaining rib close to the top end of the main body.

6. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that: An overflow groove notch is provided at the rear end of the overflow groove, and one end of the overflow groove notch close to the volute tongue air duct is communicated with the volute tongue air duct.

7. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that: The bottom surface of the overflow groove notch is not higher than the rear end of the overflow groove bottom surface.

8. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that: A fourth through hole is formed on the bottom surface of the overflow groove notch for water in the overflow groove notch to flow to the bottom of the base.

9. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that: One end of the overflow groove gap close to the motor cavity is connected to the motor cavity; The motor cavity has a lowest point of the motor cavity, the indoor motor has a lowest point of the indoor motor, and 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 is a first height h1; In the vertical direction, the overflow height of the overflow groove gap relative to the lowest point of the motor cavity is a second height h2; h1>h2, h2≥0mm.

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 to the other side end; the main body at least includes a first cavity located inside the main body; The subject includes: a casing having an indoor air inlet and an indoor air outlet formed thereon and communicating with the first cavity; 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 length direction of the main body; the base includes a front volute tongue for forming the volute tongue air duct; 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 in 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 pan, formed on the base and used to receive condensed water flowing down from the indoor heat exchanger, the first water receiving pan being arranged at the front side of the volute air duct and the motor cavity, and the first water receiving pan having a first water receiving pan rear wall located at the rear side of the first water receiving pan; The rear wall of the first water receiving tray comprises: first posterior wall; a second rear wall, which is sequentially arranged with the first rear wall in the length direction of the main body and connected with the first rear wall; The front volute tongue includes at least a portion of the first rear wall; the second rear wall includes a front side wall of the motor cavity located at the front side of the motor cavity; Along the length direction of the main body, the connection between the second rear wall and the first rear wall is located on a side of the motor cavity close to the indoor fan; In the height direction of the main body, the end portion of the first rear wall connected to the second rear wall is lower than the second rear wall; a drainage portion formed on the base, the drainage portion being located on a side of the motor cavity away from the indoor fan, or the drainage portion being located below the motor cavity and the drainage portion and the motor cavity being isolated by a first partition; The drainage portion is communicated with the first water receiving tray; a drainage hole is provided on the bottom wall of the drainage portion, and water in the first water receiving tray is discharged through the drainage hole.

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