Hanging type air conditioner indoor unit

Abstract

The utility model provides a hanging type air conditioner indoor unit. An indoor motor is an outer rotor motor; a volute tongue air duct and a motor cavity are formed in the base, and the volute tongue air duct and the motor cavity are sequentially arranged in the width direction of the main body; the first water pan is arranged on the base and used for receiving condensate water flowing down from the indoor heat exchanger, and the first water pan is arranged on the front side of the volute tongue air duct; the drainage part is formed on the base and located below the motor cavity, and the drainage part and the motor cavity are isolated through a first partition plate; the drainage part is communicated with the first water pan; a drainage hole is formed in the bottom wall of the drainage part, and water in the first water pan is drained through the drainage hole; the drainage part is located below the motor cavity and is isolated from the motor cavity through the first partition plate, so that when water is collected to the drainage part, condensate water in the drainage part cannot flow to the indoor motor, water is prevented from being splashed to the indoor motor, the situation that the indoor motor is burnt out after being powered on due to water is avoided, and normal work and the service life of the indoor motor are guaranteed.

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, restricted by 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 restricted by the installation environment, the drain hole can only be arranged on one side of the air conditioner indoor unit and is arranged on the side close to the indoor motor; in the existing air conditioner indoor unit, the drain hole is usually arranged directly below the indoor motor, and when the water flows to the drain hole, it is easy to splash onto the indoor motor, and when the indoor motor is powered on, it is easy to cause the indoor motor to burn out. Therefore, this application proposes a wall-mounted air conditioner indoor unit. Summary of the Invention

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

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

[0007] A main body, the length direction of the main body is from one end of the main body 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 housing, on which an indoor air inlet and an indoor air outlet are formed;

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

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

[0012] The indoor fan is disposed in the first chamber and on the side of the indoor heat exchanger away from the indoor air inlet;

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

[0014] The indoor motor is an outer rotor motor, which includes a stator and a rotor. The stator is fixedly disposed on 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;

[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 that has exchanged heat with the indoor heat exchanger flows through the scroll tongue air duct and exits the housing through the indoor air outlet;

[0016] The first water receiving tray is disposed on the base and is 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;

[0017] The drainage part is formed on the base and is located below the motor chamber. The drainage part and the motor chamber are isolated by a first partition;

[0018] The drainage part is communicated with the first water receiving tray; a drain hole is provided on the bottom wall of the drainage part, and the water in the first water receiving tray is discharged through the drain hole.

[0019] When the indoor motor is an outer rotor motor, setting the drainage part below the motor chamber and isolating it from the motor chamber by a first partition can prevent the condensed water in the drainage part from flowing to the indoor motor when the water accumulates in the drainage part, avoid water splashing on the indoor motor, avoid the splashed water entering the stator coil etc. through the gap between the rotor and the stator, and avoid the water causing the indoor motor to burn out after being powered on, ensuring the normal operation and service life of the indoor motor.

[0020] According to an embodiment of the present disclosure, the main body includes:

[0021] The fresh air scroll housing is disposed in the housing and on the side of the indoor fan blade away from the indoor motor. A fresh air chamber is formed in the fresh air scroll housing, and the fresh air chamber is communicated with the outside;

[0022] The fresh air fan blade is disposed in the fresh air chamber;

[0023] The fresh air motor is connected to the fresh air fan blade;

[0024] The fresh air motor drives the fresh air fan blade to rotate so that outdoor air flows into the fresh air chamber and then into the room.

[0025] The fresh air volute, fresh air fan and fresh air motor are provided to introduce outdoor fresh air into the room. The fresh air volute and the drainage part are arranged on both sides of the indoor fan, which 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.

[0026] According to an embodiment of the present disclosure, a third through hole is provided on the bottom wall of the first water receiving tray, and the first water receiving tray is communicated with the drainage part through the third through hole.

[0027] According to an embodiment of the present disclosure, the main body includes:

[0028] A second water receiving tray, formed on the base and used for receiving the condensed water flowing down from the indoor heat exchanger, and the second water receiving tray is arranged at the rear side of the volute tongue air duct;

[0029] A first guiding part, formed on the base and arranged on the side of the indoor fan away from the motor cavity;

[0030] Along the length direction of the main body, one end of the first water receiving tray away from the drainage part is communicated with the first guiding part;

[0031] Along the length direction of the main body, one end of the second water receiving tray away from the drainage part is communicated with the first guiding part.

[0032] According to an embodiment of the present disclosure, a second guiding part is formed at the rear side of the base;

[0033] Along the length direction of the main body, the second guiding part is located on the side of the first guiding part close to the drainage part;

[0034] One end of the second guiding part close to the first guiding part is communicated with the first guiding part.

[0035] According to an embodiment of the present disclosure, a first through hole for water to flow from the second water receiving tray to the rear of the base is provided on the bottom wall of the second water receiving tray;

[0036] The second guiding part is located below the first through hole to receive the water flowing out of the first through hole, and can lead 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 guiding part, so that when the air conditioner indoor unit is tilted, the water in the second water receiving tray can be normally discharged.

[0037] According to an embodiment of the present disclosure, a first through hole for water to flow from the second water receiving tray to the rear of the base is provided on the bottom wall of the second water receiving tray;

[0038] The drainage part is located below the first through hole to receive the water flowing out of the first through hole, and drain the water in the second water receiving tray into the drainage part.

[0039] According to an embodiment of the present disclosure, one end of the second diversion part away from the first diversion part is communicated with the drainage part, facilitating the water in the second diversion part to flow to the drainage part from both ends and increasing the drainage efficiency of the second diversion part.

[0040] According to an embodiment of the present disclosure, the second diversion part includes:

[0041] A first sub-diversion part, located at one end of the second diversion part close to the drainage part;

[0042] A second sub-diversion part, located at one end of the second diversion part close to the first diversion part;

[0043] The adjacent ends of the first sub-diversion part and the second sub-diversion part are connected. The first sub-diversion part and the second sub-diversion part are inclined with respect to the length direction of the main body. One end of the first sub-diversion part connected to the second sub-diversion part is the end of the first sub-diversion part away from the bottom end of the main body, and one end of the second sub-diversion part connected to the first sub-diversion part is the end of the second sub-diversion part away from the bottom end of the main body.

[0044] The first sub-diversion part and the second sub-diversion part are both inclined with respect to the length direction of the main body, facilitating the water on the first sub-diversion part and the second sub-diversion part to be respectively guided to the drainage part and the first diversion part.

[0045] According to an embodiment of the present disclosure, a wall-mounted air conditioner indoor unit is further proposed, including:

[0046] A main body, with one side end of the main body to the other side end being the length direction of the main body; the main body at least includes a first cavity located inside the main body;

[0047] The main body includes:

[0048] A housing, on which an indoor air inlet and an indoor air outlet are formed;

[0049] An indoor heat exchanger, disposed in the first cavity;

[0050] A base, on which a volute tongue air duct and a motor cavity are formed, and the volute tongue air duct and the motor cavity are arranged in sequence along the width direction of the main body;

[0051] An indoor fan, disposed in the first cavity and on the side of the indoor heat exchanger away from the indoor air inlet; the indoor fan includes an indoor fan and an indoor motor, the indoor fan is disposed in the volute tongue air duct, and the indoor motor is disposed in the motor cavity;

[0052] 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 that has exchanged heat with the indoor heat exchanger flows through the volute tongue air duct and flows out of the casing through the indoor air outlet;

[0053] The fresh air volute is arranged inside the casing and on the side of the indoor fan away from the indoor motor. A fresh air chamber is formed inside the fresh air volute, and the fresh air chamber is communicated with the outside;

[0054] The fresh air fan is arranged inside the fresh air chamber;

[0055] The fresh air motor is 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;

[0056] The first water receiving tray is arranged on the base and is used for receiving the condensed water flowing down from the indoor heat exchanger. The first water receiving tray is arranged on the front side of the volute tongue air duct;

[0057] The drainage part is formed on the base and is located below the motor chamber. The drainage part and the motor chamber are separated by a first partition;

[0058] The drainage part is communicated with the first water receiving tray; a drainage hole is arranged 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

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

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

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

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

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

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

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

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

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

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

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

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

[0071] Figure 13 is Figure 12 a schematic structural diagram of the position A in

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

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

[0074] Figure 16 is Figure 15 a schematic structural diagram of the position B in

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

[0076] Figure 19 is Figure 18 a schematic structural diagram of the position C in

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

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

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

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

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

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

[0083] Figure 26 is Figure 25Schematic diagram of the structure at E;

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

[0085] Figure 28 is Figure 27 Schematic diagram of the structure at F;

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

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

[0088] Figure 31 is Figure 30 Schematic diagram of the structure at G;

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

[0090] Figure 33 is Figure 32 Schematic diagram of the structure at H;

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

[0092] Figure 35 is Figure 34 Schematic diagram of the structure at I;

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

[0094] Figure 37 is Figure 36 Schematic diagram of the structure at J;

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

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

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

[0098] Figure 42 is Figure 41 Schematic diagram of the structure at K;

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

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

[0101] In the above figures: main body 100; first cavity 101; housing 1; indoor air inlet 111; indoor air outlet 112; indoor heat exchanger 21; first section heat exchanger 211; second section heat exchanger 212; third section heat exchanger 213; indoor fan 22; indoor fan blade 221; indoor motor 222; stator 2221; rotor 2222; base 3; base body 301; second deflector 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 deflector part 361; first communication part 362; second through hole 3621; notch space 363; first partition 364; first water retaining rib 365; second water retaining rib 366; overflow groove 367; overflow groove notch 368; fourth through hole 3681; second deflector part 37; first sub-deflector part 371; second sub-deflector part 372; fresh air volute 6. Detailed implementation manners

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

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

[0104] The terms "first", "second", "third", etc. in the specification, claims and the above drawings of the present application are used to distinguish similar or same-kind 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.

[0105] The terms "comprising" and "having" and any variations thereof are intended to cover but not be exclusive of inclusion. 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.

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

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

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

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

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

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

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

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

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

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

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

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

[0118] In this 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.

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

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

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

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

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

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

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

[0126] 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.

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

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

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

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

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

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

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

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

[0135] 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.

[0136] In this application, the air conditioner executes 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 conditioned and heat-exchanged air.

[0137] 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.

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

[0139] 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.

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

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

[0142] In this 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 may be located inside the housing. A fresh air chamber may be formed inside the fresh air volute, and the fresh air chamber may communicate with the outside.

[0143] The fresh air module may include a fresh air fan, and the fresh air fan may be disposed in the fresh air chamber.

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

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

[0146] 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 cavity and then flows into the room through the fresh air outlet.

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

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

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

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

[0151] In the present application, referring to Figures 7 - 8 , the indoor fan may include an indoor motor 222. The indoor motor may be located in the motor cavity.

[0152] In the present application, the indoor motor drives the indoor fan to rotate so that air flows from 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 out of the housing through the indoor air outlet.

[0153] In the present application, the main body may include a water receiving tray 33. The water receiving tray 33 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.

[0154] 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.

[0155] 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.

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

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

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

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

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

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

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

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

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

[0165] In this application, the first water receiving tray can be a trough.

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

[0167] In the present application, with reference 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.

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

[0169] In the present application, with reference 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.

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

[0171] In the present application, the condensed water on the second-stage heat exchanger may flow onto the first-stage heat exchanger and then into the first water receiving tray.

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

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

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

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

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

[0177] In the present application, the bottom end of the third-stage heat exchanger may be located within the second water receiving tray.

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

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

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

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

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

[0183] In the present application, the first flow guiding portion can include a first flow guiding portion side wall. The first flow guiding portion can include a first flow guiding portion bottom wall. The drainage portion can be a groove formed by the first flow guiding portion side wall and the first flow guiding portion bottom wall.

[0184] In the present application, along the length direction of the main body, both ends of the first water receiving tray are respectively communicated with the drainage portion and the first flow guiding portion.

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

[0186] 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 communicated with the first flow guiding portion. It can enable the water in the second water receiving tray to flow into the first water receiving tray through the first flow guiding portion, and then flow into the drainage portion through the first water receiving tray, ensuring that the water in the second water receiving tray can be discharged, avoiding the accumulation of water in the second water receiving tray, avoiding mildew and bacteria growth that 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 inability to discharge the water in the second water receiving tray, avoiding affecting the user experience, and avoiding reducing the market competitiveness of the indoor unit of the air conditioner.

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

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

[0189] In the present application, along the length direction of the main body, the second flow guiding portion is located on the side of the first flow guiding portion close to the drainage portion. One end of the second flow guiding portion close to the first flow guiding portion is communicated with the first flow guiding portion.

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

[0191] In 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.

[0192] 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 one end of the second water receiving tray close to the drainage part.

[0193] 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 close to the indoor fan.

[0194] In the present application, referring to Figures 13 - 17 , a second water guiding part 37 can be provided below the first through hole 3321 to receive the water flowing out from the first through hole. The water in the second water receiving tray can flow 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.

[0195] In the present application, by providing the first through hole at one end of the second water receiving tray close to the drainage part, when the air conditioner indoor unit is installed obliquely and one end of the air conditioner indoor unit where the drainage part is provided is slightly lower, the water accumulated at one end of the second water receiving tray close to the drainage part can be discharged from the second water receiving tray through the first through hole, avoiding the accumulation of water in the second water receiving tray. And at the same time, it can avoid directly setting a channel to communicate between the second water receiving tray and the drainage part, avoiding the channel occupying the notch space 363 provided on the base for the refrigerant inlet and outlet pipes of the indoor heat exchanger, and avoiding the increase in the overall size of the main body caused by occupying the notch space.

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

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

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

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

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

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

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

[0203] In this application, referring to Figures 13 - 17 , the extension direction of the second diversion part and the length direction of the main body form a first angle α1.

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

[0205] Set α1≥2° to avoid too small a first included angle, so that when the main body is horizontally installed, it is convenient for the water flow in the second water guiding part to flow into the first water guiding part, and it is convenient to flow the water to the drainage part and drain it out of the drainage part.

[0206] When the air conditioner indoor unit is tilted and the end with the drainage part is slightly lower, due to the length dimension of the air conditioner indoor unit, the tilt angle of the air conditioner indoor unit will not be very large when distinguishable by the human eye. Set α1≥2°. When the main body is tilted 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 make the height of the end of the second water guiding part close to the first water guiding part not exceed the end of the second water guiding part far from the first water guiding part, so that the water flow in the second water guiding part can flow into the first water guiding part, which is convenient for flowing the water to the drainage part and draining it out of the drainage part, solving the problem that it is difficult to drain the water in the second water receiving tray and the second water guiding part caused by the slightly lower end of the drainage part, avoiding the accumulation of water in the second water receiving tray and the second water guiding part, avoiding mildew and bacteria breeding that affect the user's health, and avoiding the problems of water leakage of the air conditioner indoor unit and water blowing from the indoor air outlet caused by the inability to drain the water in the second water receiving tray, avoiding affecting the user experience and reducing the market competitiveness of the air conditioner indoor unit.

[0207] In this application, when the main body is tilted 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 drained into the drainage part, and the drain hole is at the lowest position of the drainage part, which is convenient for draining the water in the drainage part.

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

[0209] In the height direction of the main body, the height difference between the first point and the second point is the first height difference H. Along the length direction of the main body, the length of the second water guiding part is L2. H / L2 = tanα1.

[0210] In this application, H / L2≥the tenth parameter value. The tenth parameter value can be any value between 0.017 and 0.053. The tenth parameter value can be 0.034. H / L2≥0.034, avoiding the second water guiding part being inclined at a relatively small angle 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 tilted, resulting in the inability of the water in the second water guiding part to enter the first water guiding part, and avoiding the difficulty of draining the water in the second water guiding part.

[0211] In this application, H ≥ the fourth parameter value. The fourth parameter value can be any value between 12 mm and 20 mm. The fourth parameter value can be 17 mm. H ≥ 17 mm. Avoiding H being too small causes α1 to be too small, avoiding the second diversion part being inclined less relative to the length direction of the main body, avoiding one end of the second diversion part close to the first diversion part being too high when the main body is inclined, resulting in the water in the second diversion part being unable to enter the first diversion part, and avoiding the water in the second diversion part being difficult to drain. And avoiding the size of H being too small makes the inclination height of the indoor unit corresponding to α1 not obvious, and being able to limit the inclination angle of the air-conditioning indoor unit within 2°, so as to ensure the function of the second diversion part to divert water into the first diversion part.

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

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

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

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

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

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

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

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

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

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

[0222] One end of the second water receiving tray close to the drainage part is communicated with the drainage part, so that the water in the second water receiving tray can flow into the drainage part through the end of the second water receiving tray close to the drainage part, which 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, which can relieve the drainage pressure of the first water receiving tray and avoid overflow at the first water receiving tray.

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

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

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

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

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

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

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

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

[0231] It can enable the water in the second water receiving tray to flow into the first water receiving tray through the first diversion part, and then flow into the drainage part through the first water receiving tray.

[0232] 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 part 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 diversion part, the first diversion part and the first water receiving tray and then being discharged to the drainage part, improving the user experience.

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

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

[0235] In this application, the second water guiding portion is arranged obliquely with respect to the length direction of the main body, and the end of the second water guiding portion connected to the first water guiding portion is the end of the second water guiding portion close to the bottom end of the main body.

[0236] In this application, with reference to Figures 21 - 24 , the included angle between the extending direction of the second water guiding portion and the length direction of the main body is a first angle α1.

[0237] In this 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°.

[0238] Setting α1 ≥ 2° can avoid the first included angle being too small. When the main body is horizontally installed, it is convenient for the water in the second water guiding portion to flow into the first water guiding portion, and it is convenient to flow the water into the drainage portion and discharge it from the drainage portion.

[0239] Setting α1 ≥ 2° can enable, when the main body is inclined relative to the horizontal plane and the end of the second water receiving tray close to the drainage portion is the bottom end, the end of the second water guiding portion close to the first water guiding portion not to exceed the end of the second water guiding portion far from the first water guiding portion, can enable the water in the second water guiding portion to flow into the first water guiding portion, and it is convenient to flow the water into the drainage portion and discharge it from the drainage portion, solve the problem that it is difficult to discharge the water in the second water guiding portion caused by the slightly lower end of the drainage portion, avoid the water accumulating in the second water guiding portion, and avoid mildew and bacteria breeding affecting the health of users.

[0240] In this application, along the length direction of the main body, the second water guiding portion is located on the side of the first water guiding portion close to the drainage portion. Along the length direction of the main body, both ends of the second water guiding portion are respectively communicated with the first communicating portion and the first water guiding portion, which is convenient for the water in the second water guiding portion to flow to the drainage portion from both ends, and increases the drainage efficiency of the second water guiding portion.

[0241] In this application, with reference to Figures 25 - 26 , a second through hole 3621 can be provided on the side wall of the first communicating portion. The second water guiding portion and the first communicating portion can be communicated through the second through hole, which is convenient for the first communicating portion and the second water guiding portion to be communicated.

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

[0243] In the present application, the second water guiding portion may include a first sub-water guiding portion 371. The first sub-water guiding portion may be located at one end of the second water guiding portion close to the first communication portion.

[0244] In the present application, the second water guiding portion includes a second sub-water guiding portion 372. The first sub-water guiding portion may be located at one end of the second water guiding portion close to the first water guiding portion.

[0245] In the present application, the adjacent ends of the first sub-water guiding portion and the second sub-water guiding portion are connected.

[0246] In the present application, the first sub-water guiding portion and the second sub-water guiding portion are inclined with respect to the length direction of the main body. One end of the first sub-water guiding portion connected to the second sub-water guiding portion is the end of the first sub-water guiding portion far from the bottom end of the main body. One end of the second sub-water guiding portion connected to the first sub-water guiding portion is the end of the second sub-water guiding portion far from the bottom end of the main body.

[0247] The first sub-water guiding portion and the second sub-water guiding portion are both inclined with respect to the length direction of the main body, which is convenient for guiding the water on the first sub-water guiding portion and the second sub-water guiding portion to the first communication portion and the first water guiding portion respectively.

[0248] In the present application, the included angle between the extending direction of the first sub-water guiding portion and the length direction of the main body is a second angle α2.

[0249] In the present application, α2≥a fourth parameter value. The fourth parameter value may be any value between 1° and 3°. The fourth parameter value may be 2°. α2≥2°. To avoid the second included angle being too small, when the main body is horizontally installed or the main body is inclined relative to the horizontal plane, it can be ensured that the end of the first sub-water guiding portion close to the first communication portion does not exceed the end of the first sub-water guiding portion far from the first communication portion, and the water in the first sub-water guiding portion can flow into the first communication portion, which is convenient for flowing the water into the drainage portion and discharging it from the drainage portion.

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

[0251] In the present application, α3≥a fifth parameter value. The fifth parameter value may be any value between 1° and 3°. The fifth parameter value may be 2°. α3≥2°. To avoid the third included angle being too small, when the main body is horizontally installed or the main body is inclined relative to the horizontal plane, it can be ensured that the end of the second sub-water guiding portion close to the first water guiding portion does not exceed the end of the second sub-water guiding portion far from the first water guiding portion, and the water in the second sub-water guiding portion can flow into the first water guiding portion, which is convenient for flowing the water into the drainage portion and discharging it from the drainage portion.

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

[0253] In the present application, the rear portion of the first air guide portion may be provided with an opening.

[0254] In this application, reference is made to Figures 27 - 29 The main body may include a drain portion. The drain portion may be formed on the base. The drain portion may be located below the motor cavity. The drain portion and the motor cavity are isolated by a first partition 364.

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

[0256] The drainage part is arranged below the motor cavity and is isolated from the motor cavity by the first partition. 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 causing the indoor motor to burn out after being powered on, thereby ensuring the normal operation and life of the indoor motor.

[0257] 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.

[0258] 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.

[0259] 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.

[0260] 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.

[0261] 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.

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

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

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

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

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

[0267] In the present 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 provided with the drainage part is slightly lower, the water accumulated at one end of the second water receiving tray close to the drainage part can be discharged from the second water receiving tray through the first through hole, avoiding the accumulation of water in the second water receiving tray.

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

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

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

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

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

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

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

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

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

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

[0278] In the present application, α3≥the fifth parameter value. The fifth parameter value can be any value between 1° and 3°. The fifth parameter value can be 2°. α3≥2°. Avoiding the third included angle being too small, when the main body is horizontally installed or the main body is inclined relative to the horizontal plane, it can be ensured that the end of the second sub-diversion part close to the first diversion part does not exceed the end of the second sub-diversion part far from the first diversion part, and it can be ensured that the water in the second sub-diversion part flows into the first diversion part, facilitating the water to flow into the drainage part and be discharged from the drainage part.

[0279] In the present application, one end of the second diversion part far from the first diversion part can be isolated from the drainage part.

[0280] In the present application, when one end of the second diversion part far from the first diversion part is isolated from the drainage part, the second diversion part is arranged obliquely with respect to the length direction of the main body, and one 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, facilitating guiding the water to the first diversion part.

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

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

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

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

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

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

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

[0288] In the present application, the indoor heat exchanger may include a first stage heat exchanger. The bottom end of the first stage heat exchanger may be located in a first water receiving pan. Condensed water on the first stage heat exchanger may flow on the first water receiving pan.

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

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

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

[0292] In this application, 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 affected by 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, water usually enters the motor cavity. Water contacting the live components is prone to short circuit, and water entering the motor cavity is likely to damage the indoor motor.

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

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

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

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

[0297] In this application, referring to Figures 36 - 37 , the second rear wall may include a front side wall 321 of the motor cavity located in front of the motor cavity.

[0298] In this 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 cavity close to the indoor fan.

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

[0300] In this 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 as much as possible 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 cavity close to the indoor fan, when the drain pipe is blocked or the drain hole is blocked, it can make the condensed water in the first water receiving tray not flow into the motor cavity as much as possible, but flow to the side of the motor cavity close to the volute tongue air duct, avoiding the influence of water on the indoor motor.

[0301] In the present application, when the indoor motor is an outer-rotor motor, setting the end 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 indoor unit of the air conditioner 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 flow to the side of the motor cavity close to the volute tongue air duct, avoiding the influence of water on the indoor motor.

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

[0303] In the present application, L3 ≥ the sixth parameter value. The sixth parameter value can be any value in the range of 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, so that when the indoor unit of the air conditioner 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 flow to the side of the motor cavity close to the volute tongue air duct, avoiding the influence of water on the indoor motor.

[0304] In the present application, in the front-rear direction of the main body, the first rear wall and the front side wall of the motor cavity can be arranged offset from each other.

[0305] 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. Placing 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, reduce the gap between the rotor and the fan and the communication opening, which can reduce the entry of overflowing water or dust into the motor cavity.

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

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

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

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

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

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

[0312] In the present application, the top end of the second water retaining rib may 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 chamber.

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

[0314] In the present application, one end of the overflow groove notch close to the volute tongue air duct may be 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.

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

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

[0317] In the present application, one end of the overflow groove notch close to the motor chamber may be communicated with the motor chamber, which is convenient for the water in the motor chamber to flow out of the motor chamber, can prevent the water flowing into the motor chamber from accumulating in the motor chamber, and can prevent the water from hitting the indoor motor and damaging the indoor motor.

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

[0319] In this application, the first height h1 ≥ the seventh parameter value. The seventh parameter value can be any value in the range of 5 mm - 7 mm. The seventh parameter value can be 5 mm. The first height h1 ≥ 5 mm. Avoiding the first height being too low so that the indoor motor is too close to the lowest point of the motor chamber, which is likely to cause the indoor motor to come into contact with water when there is water in the motor chamber and damage the indoor motor.

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

[0321] 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 - 2 mm. The eighth parameter value can be 0 mm. The second height h2 ≥ 0 mm. Making the lower limit value of the second height as small as possible to facilitate the water in the motor chamber to flow into the fourth through hole and / or flow through the overflow groove notch into the volute tongue air duct.

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

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

[0324] In this application, the connection part of 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 chamber.

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

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

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

[0328] In this application, the wall surface on the side of the first water retaining rib 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 chamber.

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

[0330] For the sake of convenience in explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussions are not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified 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 of the main body to the other side end of the main body; the main body at least includes a first cavity located in the main body; The subject includes: A casing having an indoor air inlet and an indoor air outlet formed thereon; an indoor heat exchanger, disposed in the first chamber; A base, on which a volute-tongue air duct and a motor cavity are formed, wherein the volute-tongue air duct and the motor cavity are sequentially arranged along the width direction of the main body; an indoor fan, disposed in the first cavity and located on a side of the indoor heat exchanger away from the indoor air inlet; The indoor fan comprises an indoor fan and an indoor motor; the indoor fan is arranged in the volute-tongue air duct; The indoor motor is an outer rotor motor, which includes a stator and a rotor. The stator is fixed on the motor cavity, and the rotor is wound around the outer side of the stator along the circumference of the stator. The rotor is connected to the indoor fan. The indoor motor drives the indoor fan to rotate so that air flows through the indoor air inlet to the indoor heat exchanger to exchange heat with the indoor heat exchanger, and the air after heat exchange with the indoor heat exchanger flows through the volute air duct and out of the casing through the indoor air outlet; A first water receiving tray, disposed on the base and used to receive condensed water flowing down from the indoor heat exchanger, wherein the first water receiving tray is disposed on the front side of the volute-tongue air duct; a drainage portion formed on the base and located below the motor cavity, wherein the drainage portion and the motor cavity are separated 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.

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: A third through hole is provided on the bottom wall of the first water receiving tray, and the first water receiving tray is connected to the drainage part through the third through hole.

4. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The subject includes: A second water receiving tray, formed on the base and used to receive condensed water flowing down from the indoor heat exchanger, the second water receiving tray being arranged at the rear side of the volute-tongue air duct; A first air guide portion, formed on the base and disposed on a side of the indoor fan away from the motor cavity; 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; Along the length direction of the main body, one end of the second water receiving tray away from the drainage portion is communicated with the first guide portion.

5. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that: A second air guide portion is formed on the rear side of the base; Along the length direction of the main body, the second guide portion is located on a side of the first guide portion close to the drainage portion; One end of the second flow guiding portion close to the first flow guiding portion is communicated with the first flow guiding portion.

6. The wall-mounted air conditioner indoor unit according to claim 5, characterized in that: A first through hole is provided on the bottom wall of the second water receiving tray for supplying water from the second water receiving tray to the rear of the base; The second guide portion is located below the first through hole to receive water flowing out of the first through hole.

7. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that: A first through hole is provided on the bottom wall of the second water receiving tray for supplying water from the second water receiving tray to the rear of the base; The drainage portion is located below the first through hole to receive water flowing out of the first through hole.

8. The wall-mounted air conditioner indoor unit according to claim 5 or 6, characterized in that: One end of the second guide portion away from the first guide portion is communicated with the drainage portion.

9. The wall-mounted air conditioner indoor unit according to claim 8, characterized in that: The second guide portion comprises: A first sub-guiding portion, located at one end of the second guiding portion close to the drainage portion; A second sub-guiding portion, located at one end of the second guiding portion close to the first guiding portion; The adjacent ends of the first sub-guide portion and the second sub-guide portion are connected, and the first sub-guide portion and the second sub-guide portion are inclined relative to the length direction of the main body. The end of the first sub-guide portion connected to the second sub-guide portion is the end of the first sub-guide portion away from the bottom end of the main body, and the end of the second sub-guide portion connected to the first sub-guide portion is the end of the second sub-guide portion away from the bottom end of the main body.

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

Images