Wall-mounted air conditioner indoor unit

Abstract

The application provides a wall-mounted air conditioner indoor unit, which comprises a shell, a volute, an air duct barrel, an air inlet cover and an air outlet plate, and the bottom of the shell is provided with an avoiding opening; the volute is arranged in the shell, and the bottom of the volute is provided with an air supply opening; the air duct barrel is rotatably arranged in the shell, the air duct barrel is arranged along the length direction of the volute, the air duct barrel is located below the volute, the rotation center axis of the air duct barrel is arranged along the length direction of the volute, the air duct barrel is provided with an air duct cavity for containing water, and the outer circumferential side of the air duct barrel is provided with a ventilation opening and an air outlet opening which are communicated with the air duct cavity; the air inlet cover is arranged at the ventilation opening, and the air inlet cover is used for opening or closing the ventilation opening; the air outlet plate is arranged at the air outlet opening in an openable and closable manner; and the air duct barrel has an air duct cleaning state of keeping rotating under the condition that the ventilation opening and the air outlet opening are closed. The wall-mounted air conditioner indoor unit can realize the self-cleaning function of the air outlet opening, the air deflector and the air duct cavity.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioning equipment, in particular to a wall-mounted air conditioner indoor unit. BACKGROUND

[0002] Air conditioners are increasingly popular with the public as a means of cooling in summer and heating in winter. However, after long-term use, the air outlet and the interior of the air conditioner in modern society will have a large amount of dust and dirt, which is very unclean and can also be harmful to the human body.

[0003] Currently, in the prior art, the self-cleaning function of the air conditioner is more for cleaning the evaporator, and there is no cleaning function for cleaning parts other than the evaporator, such as the air outlet, air deflector, swing leaf, air duct cavity, etc. After long-term use, the dust accumulated on these parts, including the inner wall of the air conditioner, will become dirty, which is harmful to the human body. The cleaning of the air outlet, air deflector, swing leaf, air duct cavity and other parts still relies on cleaning personnel to come to the door and use professional cleaning tools. Therefore, the self-cleaning problem of the air conditioner for the air outlet, air deflector, swing leaf, air duct cavity and other parts needs to be solved. SUMMARY

[0004] An object of the present application is to provide a wall-mounted air conditioner indoor unit that can solve at least one of the above-mentioned deficiencies in the prior art.

[0005] A further object of the present application is to enable the wall-mounted air conditioner indoor unit to achieve a self-cleaning function for the air outlet, air deflector, air duct cavity and other parts.

[0006] In particular, the present application provides a wall-mounted air conditioner indoor unit, comprising:

[0007] a housing having an escape opening at the bottom;

[0008] a volute disposed in the housing and having an air outlet at the bottom;

[0009] an air duct barrel rotatably disposed in the housing along the length direction of the volute, located below the volute, having a rotational center axis disposed along the length direction of the volute, and having an air duct cavity for containing water and a ventilation opening and an air outlet opening disposed on the outer periphery side thereof and communicating with the air duct cavity;

[0010] an air inlet cover disposed at the ventilation opening for opening or closing the ventilation opening;

[0011] an air outlet plate disposed at the air outlet opening for opening or closing the air outlet opening;

[0012] the air duct barrel has an air outlet state in which the ventilation opening is disposed opposite the air outlet and the air outlet is disposed opposite the escape opening when the ventilation opening and the air outlet are opened;

[0013] The air duct barrel also has an air duct cleaning state of keeping rotating when the air inlet and the air outlet are closed.

[0014] Further, the left and right ends of the air duct barrel are rotatably connected to the shell; and,

[0015] The wall-mounted air conditioner indoor unit also comprises:

[0016] The cleaning driving device is drivingly connected to the air duct barrel and the shell, and is used for driving the air duct barrel to rotate.

[0017] Further, the wall-mounted air conditioner indoor unit also comprises:

[0018] The telescopic mechanism is connected between the left end of the air duct barrel and the shell and between the right end of the air duct barrel and the shell, and is used for driving the air duct barrel to extend out of or retract into the shell through the avoiding opening;

[0019] The cleaning driving device is arranged on the telescopic mechanism.

[0020] Further, the end of the air inlet cover defining the length thereof is rotatably connected to the end of the air inlet defining the length thereof; and,

[0021] The air inlet cover rotates towards the air duct cavity around the rotational center axis thereof to open the air inlet.

[0022] Further, the end of the air outlet plate defining the length thereof is rotatably connected to the end of the air outlet defining the length thereof.

[0023] Further, the air outlet plate rotates towards the outside of the air duct barrel around the rotational center axis thereof to open the air outlet, and the air outlet plate is also used for guiding the airflow flowing out of the air outlet in the vertical direction.

[0024] Further, the avoiding opening is arranged along the length direction of the shell;

[0025] The air supply opening is arranged along the length direction of the volute;

[0026] The air inlet and the air outlet are arranged along the axial direction of the air duct barrel.

[0027] Further, the rotational center axis of the air duct barrel passes through the geometric center points of the left and right end faces thereof;

[0028] The outer contour shape of the cross section of the air duct barrel is circular.

[0029] Further, the wall-mounted air conditioner indoor unit also comprises:

[0030] The indoor heat exchanger is arranged in the shell;

[0031] The water pan is located at the bottom end of the indoor heat exchanger and is arranged on the volute;

[0032] The water supply pipe has its first end connected to the outlet of the water receiving tray, and its second end passing through the left or right end of the air duct barrel and connected to the air duct cavity. The central axis of the second end of the water supply pipe is collinear with the rotation center axis of the air duct barrel.

[0033] The outlet is equipped with a first electric on / off valve.

[0034] Furthermore, the air duct is also equipped with a drain outlet, and a second electrically operated water valve is installed at the drain outlet; and,

[0035] The drain outlet is located on the periphery of the air duct casing; or,

[0036] The drain outlet is located at the left or right end of the air duct, and is positioned away from the rotation center axis of the air duct.

[0037] The indoor unit of the wall-mounted air conditioner of the present invention comprises an air duct, an air inlet cover, and an air outlet plate. The air duct is rotatably housed within the casing and is arranged along the length of the volute. The air duct is located below the volute, and its rotation axis is set along the length of the volute. The air duct contains a duct cavity for holding water, and a vent and an air outlet connecting the duct cavity are provided on its outer periphery. The air inlet cover is located at the vent and is used to open or close the vent. The air outlet plate is located at the air outlet. This device is used to open or close the air outlet. Furthermore, the ductwork bucket has an air outlet configuration where, when both the vent and outlet are open, the vent is positioned relative to the supply air outlet, and the outlet is positioned relative to the clearance opening, ensuring normal airflow and the normal operation of the wall-mounted air conditioner's indoor unit. The ductwork bucket also maintains a clean rotating duct when both the vent and outlet are closed, allowing it to utilize water within the duct cavity to clean the inner wall of the duct cavity, the air outlet, and the inner surfaces of the air inlet cover and air outlet plate facing the duct cavity. Therefore, this invention enables the wall-mounted air conditioner's indoor unit to achieve a self-cleaning function for the air outlet, air guide plate, and duct cavity.

[0038] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0039] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0040] Figure 1 This is one of the cross-sectional schematic diagrams of the indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;

[0041] Figure 2 Fig. 2 is a cross-sectional view of a wall-mounted air conditioner indoor unit according to an embodiment of the present application;

[0042] Figure 3 Fig. 3 is a structural view of a wall-mounted air conditioner indoor unit according to an embodiment of the present application;

[0043] Figure 4 Fig. 4 is a structural view of a duct barrel of a wall-mounted air conditioner indoor unit according to an embodiment of the present application. DETAILED DESCRIPTION

[0044] In the description of the present embodiments, it is to be understood that the orientations or positional relationships indicated by the terms "center", "length", "width", "upper", "lower", "front", "left", "right", "vertical", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like are based on the orientations or positional relationships shown in the drawings, and are merely intended for convenience of description of the present application and simplification of the description, and thus cannot be construed to indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be construed as limiting the present application.

[0045] The terms "first", "second", etc. are used only for the purpose of description, and cannot be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated thereby. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features, i.e. one or more of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically limited. When a certain feature "includes or comprises" a certain or certain features, unless otherwise specifically described, this indicates that other features are not excluded and can further include other features.

[0046] Unless otherwise explicitly specified and limited, the terms "provided", "connected", "connected", and the like should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. Those of ordinary skill in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0047] In addition, in the description of the present embodiments, the first feature being "on" or "under" the second feature can include the first and second features being in direct contact, or can include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of the present embodiments, the first feature being "on", "above", and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in horizontal level than the second feature. The first feature being "under", "below", or "underneath" the second feature can be the first feature being directly below or obliquely below the second feature, or simply means that the first feature is lower in horizontal level than the second feature.

[0048] Unless otherwise defined, all terms (including technical and scientific terms) used in the description of the present embodiments have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0049] In the description of the present embodiments, the description referring to the terms "present embodiments", "variant embodiments", and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The present embodiments will be described in detail below with reference to the drawings. Figures 1 to 4 The present embodiments will be described in detail below with reference to the drawings. Figure 1 is a cross-sectional view of a wall-mounted air conditioner indoor unit according to an embodiment of the present application; Figure 2 is a cross-sectional view of a wall-mounted air conditioner indoor unit according to an embodiment of the present application, and Figure 2 In Figure 1 the duct barrel is hidden; Figure 3 is a structural view of a wall-mounted air conditioner indoor unit according to an embodiment of the present application; Figure 4 is a structural view of a duct barrel of a wall-mounted air conditioner indoor unit according to an embodiment of the present application.

[0051] Referring to Figure 1 , Figure 2 and Figure 3In the embodiment, the indoor unit of the wall-mounted air conditioner comprises a shell 100, a volute 200, an air duct barrel 300, an air inlet cover 410 and an air outlet plate 420. The bottom of the shell 100 is provided with a clearance 110; the volute 200 is arranged in the shell 100, and the bottom of the volute 200 is provided with an air supply port 210; the air duct barrel 300 is rotatably arranged in the shell 100, and the air duct barrel 300 is arranged along the length direction of the volute 200, the air duct barrel 300 is located below the volute 200, the rotation center axis of the air duct barrel 300 is arranged along the length direction of the volute 200, the air duct barrel 300 is provided with an air duct cavity 310 for containing water, and the air duct barrel 300 is provided with an air vent 320 and an air outlet 330 which are connected with the air duct cavity 310 on the outer circumferential side of the air duct barrel 300; the air inlet cover 410 is arranged at the air vent 320, and the air inlet cover 410 is used for opening or closing the air vent 320; the air outlet plate 420 is arranged at the air outlet 330, and the air outlet plate 420 is used for opening or closing the air outlet 330; the air duct barrel 300 has an air outlet state in which the air vent 320 is arranged relative to the air supply port 210 and the air outlet 330 is arranged relative to the clearance 110 when the air vent 320 and the air outlet 330 are opened; and the air duct barrel 300 also has an air duct cleaning state in which the air duct barrel 300 is kept rotating when the air vent 320 and the air outlet 330 are closed.

[0052] Since the indoor unit of the wall-mounted air conditioner in the embodiment comprises the air duct barrel 300, the air inlet cover 410 and the air outlet plate 420, the air duct barrel 300 is rotatably arranged in the shell 100, the air duct barrel 300 is arranged along the length direction of the volute 200, the air duct barrel 300 is located below the volute 200, the rotation center axis of the air duct barrel 300 is arranged along the length direction of the volute 200, the air duct barrel 300 is provided with the air duct cavity 310 for containing water, and the air duct barrel 300 is provided with the air vent 320 and the air outlet 330 which are connected with the air duct cavity 310 on the outer circumferential side of the air duct barrel 300; the air inlet cover 410 is arranged at the air vent 320, and the air inlet cover 410 is used for opening or closing the air vent 320; the air outlet plate 420 is arranged at the air outlet 330, and the air outlet plate 420 is used for opening or closing the air outlet 330; and the air duct barrel 300 has the air outlet state in which the air vent 320 is arranged relative to the air supply port 210 and the air outlet 330 is arranged relative to the clearance 110 when the air vent 320 and the air outlet 330 are opened, so as to ensure the normal operation of the indoor unit of the wall-mounted air conditioner in the normal air supply mode; the air duct barrel 300 also has the air duct cleaning state in which the air duct barrel 300 is kept rotating when the air vent 320 and the air outlet 330 are closed, and then the air duct barrel 300 can clean the inner wall of the air duct cavity 310, the air outlet 330, the air inlet cover 410 and the inner side surface of the air outlet plate 420 which faces the air duct cavity 310 by using the water in the air duct cavity 310. Therefore, the indoor unit of the wall-mounted air conditioner in the embodiment realizes the self-cleaning function of the air outlet 330, the air deflector, the air duct cavity 310 and other parts.

[0053] With reference to Figure 3 In the embodiment, the left and right ends of the air duct barrel 300 are rotatably connected to the shell 100.

[0054] In a variant, the left and right ends of the air duct barrel 300 are rotatably connected to a base provided in the shell 100 of a wall-mounted air conditioner indoor unit.

[0055] With reference to Figure 4 In the embodiment, the wall-mounted air conditioner indoor unit further comprises a cleaning driving device 500. The cleaning driving device 500 is connected to the air duct barrel 300, and the cleaning driving device 500 is connected to the shell 100. The cleaning driving device 500 is used to drive the air duct barrel 300 to rotate. Further, the rotation of the air duct barrel 300 can be maintained, and the switching between the air duct cleaning state and the air outlet state of the air duct barrel 300 can be realized.

[0056] Specifically, the cleaning driving device 500 can comprise a driving motor, and a motor shaft of the driving motor is directly connected to a geometric center point of the left end face / right end face of the air duct barrel 300. In addition, the cleaning driving device 500 can further comprise a driving motor and a power transmission assembly (such as a gear set), and a motor shaft of the driving motor is drivingly connected to the left end face / right end face of the air duct barrel 300 through the power transmission assembly.

[0057] In addition, the number of the cleaning driving device 500 can be one, which is drivingly connected to the left end face / right end face of the air duct barrel 300, or two, which are drivingly connected to the left and right ends of the air duct barrel 300.

[0058] With reference to Figure 4 In the embodiment, the wall-mounted air conditioner indoor unit further comprises a telescopic mechanism 600. The telescopic mechanism 600 is connected between the left end of the air duct barrel 300 and the shell 100 and between the right end of the air duct barrel 300 and the shell 100. The telescopic mechanism 600 is used to drive the air duct barrel 300 to extend out of or retract into the shell 100 through the avoiding opening 110. The cleaning driving device 500 is provided on the telescopic mechanism 600.

[0059] Specifically, the telescopic mechanism 600 can be an electric telescopic rod, or can be a pneumatic cylinder, a hydraulic cylinder, etc., all of which can realize driving the air duct barrel 300 to extend out of or retract into the shell 100.

[0060] It can be understood that through the provision of the telescopic mechanism 600, the air duct barrel 300 can extend out of the shell 100 through the avoiding opening 110. Further, maintenance and repair personnel can conveniently disassemble, repair and maintain the air duct barrel 300 extending out of the shell 100.

[0061] With reference to Figure 1In the embodiment, the length-defining end of the air inlet cover 410 is rotatably connected to the length-defining end of the air vent 320 to open or close the air vent 320, and the air inlet cover 410 rotates towards the air duct cavity 310 about the rotation center axis to open the air vent 320.

[0062] It should be noted that if the width-defining end of the air inlet cover 410 is rotatably connected to the width-defining end of the air vent 320, the air inlet cover 410 may abut against the inner wall of the air duct cavity 310 and cannot completely open the air vent 320 if the radial dimension of the air duct barrel 300 is not large enough. Therefore, the length-defining end of the air inlet cover 410 is rotatably connected to the length-defining end of the air vent 320, so that the air inlet cover 410 can completely open the air vent 320 and ensure the air supply of the air conditioner in the air outlet state.

[0063] In addition, the rotation of the air inlet cover 410 towards the air duct cavity 310 about the rotation center axis to open the air vent 320 does not interfere with the rotation of the fan 220, thereby ensuring the normal operation of the wall-mounted air conditioner indoor unit.

[0064] In addition, the rotation of the air inlet cover 410 can also be achieved by arranging an air inlet driving motor, for example, by arranging the air inlet driving motor on the air duct barrel 300 and drivingly connecting the motor shaft of the air inlet driving motor to the rotation center axis of the air inlet cover 410.

[0065] In the variant embodiment, an air inlet telescopic slot is formed in the wall of the air duct barrel 300, the slot opening of the air inlet telescopic slot is arranged at the length-defining end of the air vent 320, and the air inlet cover 410 is telescopically and slidably arranged in the air inlet telescopic slot, thereby opening or closing the air vent 320, ensuring the air supply of the air conditioner in the air outlet state, not interfering with the rotation of the fan 220, and ensuring the normal operation of the wall-mounted air conditioner indoor unit.

[0066] Referring to Figure 1 , Figure 3 and Figure 4 In the embodiment, the length-defining end of the air outlet cover 420 is rotatably connected to the length-defining end of the air outlet 330 to open or close the air outlet 330.

[0067] It can be known that, through the setting of the end of the air outlet plate 420 defining the length thereof being rotatably connected to the end of the air outlet 330 defining the length thereof, further, if the air outlet plate 420 rotates towards the inside of the air duct cavity 310 around the rotation center axis thereof, the air outlet plate 420 can be made to completely open the air outlet 330; if the air outlet plate 420 rotates towards the outside of the air duct cavity 310 around the rotation center axis thereof, the most part of the structure of the air outlet plate 420 will not be in the indoor space to affect the normal activities of the user.

[0068] In addition, the rotation of the air outlet plate 420 can also be realized through the setting of an air outlet driving motor, for example, through the setting of the air outlet driving motor on the air duct barrel 300, and the driving connection of the motor shaft of the air outlet driving motor to the rotation center axis of the air outlet plate 420.

[0069] In the transformed embodiment, the air outlet telescopic slot is opened in the wall of the air duct barrel 300, and the slot opening of the air outlet telescopic slot is set at the end of the air outlet 330 defining the length thereof, and the air outlet plate 420 is telescopically and slidably set in the air outlet telescopic slot, thereby opening or closing the air vent 320, and the same can ensure the air supply amount of the air conditioner in the air outlet state, and will not interfere with the normal activities of the user.

[0070] Referring to Figure 1 , Figure 3 and Figure 4 , in the embodiment, the air outlet plate 420 rotates towards the outside of the air duct barrel 300 around the rotation center axis thereof to open the air outlet 330, and the air outlet plate 420 is also used to guide the flow direction of the airflow flowing out of the air outlet 330 in the vertical direction.

[0071] It can be understood that, in the case that the air outlet plate 420 rotates towards the outside of the air duct barrel 300 around the rotation center axis thereof to open the air outlet 330, the flow direction and air supply mode of the airflow flowing out of the air outlet 330 can also be guided through the rotation of the air outlet plate 420, for example, front lower air outlet, anti-direct-blow front air outlet, and up-down sweeping air mode, etc., to ensure the normal operation of the wall-mounted air conditioner indoor unit.

[0072] In the embodiment, the sealing ring is arranged on the air vent 320 and the air outlet 330, and / or the edge of the air inlet cover 410 and the air outlet plate 420, to ensure the sealing of the air duct cavity 310 in the air duct barrel 300 when the air inlet cover 410 closes the air vent 320, to ensure that the water in the air duct cavity 310 will not leak out, and to ensure the user experience.

[0073] In the embodiment, the avoiding opening 110 is arranged along the length direction of the shell 100, to reduce the loss of airflow entering the air duct cavity 310, to ensure the air supply amount of the wall-mounted air conditioner indoor unit.

[0074] In the embodiment, the air supply port 210 is arranged along the length direction of the volute 200, so as to reduce the loss of air flow into the air duct cavity 310 and ensure the air volume of the wall-mounted air conditioner indoor unit.

[0075] With reference to Figure 3 and Figure 4 In the embodiment, the air vent 320 and the air outlet 330 are arranged along the axial direction of the air duct barrel 300, so as to ensure the air outlet area of the wall-mounted air conditioner indoor unit.

[0076] With reference to Figure 3 and Figure 4 In the embodiment, the rotation center axis of the air duct barrel 300 passes through the geometric center points of the left and right end surfaces of the air duct barrel 300, so as to ensure the rotation stability of the air duct barrel 300 in the air duct cleaning state and the switching state between the air outlet state and the air duct cleaning state.

[0077] With reference to Figure 1 In the embodiment, the outer contour shape of the cross section of the air duct barrel 300 is circular, so as to ensure the size of the air duct barrel 300 and the stability during the rotation of the air duct barrel 300.

[0078] With reference to Figure 1 and Figure 2 In the embodiment, the wall-mounted air conditioner indoor unit further comprises an indoor heat exchanger 710, a water collecting tray 720 and a water delivery pipe. The indoor heat exchanger 710 is arranged in the shell 100; the water collecting tray 720 is located at the bottom end of the indoor heat exchanger 710 and arranged on the volute 200; the first end of the water delivery pipe is communicated with the water outlet of the water collecting tray 720, the second end of the water delivery pipe is communicated with the air duct cavity 310 through the left end or the right end of the air duct barrel 300, and the center axis of the second end of the water delivery pipe is collinear with the rotation center axis of the air duct barrel 300; a first electrically-operated opening and closing water valve is arranged on the water outlet.

[0079] It can be understood that the water collecting tray 720 is used to temporarily store the condensed water generated by the indoor heat exchanger 710 during the working process, so that when it is necessary to clean the inside of the air duct barrel 300, the first electrically-operated opening and closing water valve can be opened, so that the water in the water collecting tray 720 is discharged into the air duct barrel 300, and then the wall-mounted air conditioner indoor unit can complete the cleaning process; when it is not necessary to clean the inside of the air duct barrel 300, the first electrically-operated opening and closing water valve can be closed, so that the condensed water is temporarily stored in the water collecting tray 720, and the condensed water in the water collecting tray 720 can be discharged after reaching a certain amount. Moreover, the wall-mounted air conditioner indoor unit of the embodiment uses the condensed water to clean the air duct cavity 310, which avoids the waste of water resources and ensures energy saving.

[0080] In addition, the central axis of the second end of the water supply pipe and the rotating central axis of the air duct barrel 300 are made to be in line to ensure the normal operation of the above water supply process and the self-cleaning function, and the water supply pipe and the air duct barrel 300 can be connected through a bearing structure.

[0081] With reference to Figure 1 And Figure 2 In the embodiment, the wall-mounted air conditioner indoor unit further comprises a fan 220 arranged in the volute 200, and the shell 100 is provided with an air inlet 120, so that in the process of cooling, heating or air supply of the wall-mounted air conditioner indoor unit, and the air duct barrel 300 is in the air outlet state, the fan 220 can introduce the airflow in the indoor space acted on by the wall-mounted air conditioner indoor unit into the shell 100 through the air inlet 120, and then make the airflow pass through the indoor heat exchanger 710, heat exchange with the indoor heat exchanger 710, and then pass through the air supply port 210, the ventilation port 320, the air outlet 330 (and the avoidance port 110) into the indoor space.

[0082] With reference to Figure 1 In the embodiment, the air duct barrel 300 is further provided with a drain port 340, and the drain port 340 is provided with a second electrically-controlled water valve; and the drain port 340 is arranged on the circumferential side of the air duct barrel 300.

[0083] Specifically, the drain port 340 can be arranged at the bottom of the air duct barrel 300 under the condition that the ventilation port 320 is arranged opposite to the air supply port 210, and the air outlet 330 is arranged opposite to the avoidance port 110, so as to ensure that the water in the air duct barrel 300 can be completely drained.

[0084] With reference to Figure 1 Figure 1 In the embodiment, the air duct barrel 300 is further provided with a drain port 340, and the drain port 340 is provided with a second electrically-controlled water valve, the drain port 340 is arranged at the left end or the right end of the air duct barrel 300, and the drain port 340 is arranged away from the rotating central axis of the air duct barrel 300.

[0085] Specifically, the drain port 340 can be arranged at the bottom of the air duct barrel 300 under the condition that the ventilation port 320 is arranged opposite to the air supply port 210, and the air outlet 330 is arranged opposite to the avoidance port 110, so as to ensure that the water in the air duct barrel 300 can be completely drained.

[0086] In addition, the positions of the above two drain ports 340, after the wall-mounted air conditioner indoor unit in the embodiment cleans the inner wall of the air duct cavity 310, the air outlet 330, and the air inlet cover 410 and the air outlet plate 420, the user can connect a drain pipe to the drain port 340 and open the second electrically-controlled water valve to realize the water drainage process in the air duct cavity 310.

[0087] At this point, those skilled in the art will appreciate that although specific exemplary embodiments of the application have been described herein, the present application also encompasses many other variations or modifications in accordance with the principles of the application as set forth above. Accordingly, the scope of the present application should be understood to include all such variations and modifications.

Claims

1. A wall-mounted air conditioner indoor unit, comprising: a housing provided with an avoiding opening at its bottom; a volute provided in the housing and having a supply air opening at its bottom; a duct barrel rotatably provided in the housing and arranged along the length direction of the volute below the volute, with its rotation center axis arranged along the length direction of the volute, and having a duct cavity for containing water body provided therein, and with a ventilation opening and an air outlet opening provided on its outer circumferential side and communicating with the duct cavity; an air inlet cover provided at the ventilation opening for opening or closing the ventilation opening; an air outlet plate provided at the air outlet opening for opening or closing the air outlet opening; the duct barrel has an air outlet state in which the ventilation opening is arranged opposite to the supply air opening and the air outlet opening is arranged opposite to the avoiding opening when the ventilation opening and the air outlet opening are opened; the duct barrel also has a duct cleaning state in which the ventilation opening and the air outlet opening are closed and the duct barrel is kept rotating.

2. The wall-mounted air conditioner indoor unit according to claim 1, wherein: the left and right ends of the duct barrel are rotatably connected to the housing; and the wall-mounted air conditioner indoor unit further comprises: a cleaning driving device drivingly connected to the duct barrel and connected to the housing for driving the duct barrel to rotate.

3. The wall-mounted air conditioner indoor unit according to claim 2, further comprising: a telescopic mechanism connected between the left end of the duct barrel and the housing and between the right end of the duct barrel and the housing for driving the duct barrel to extend out of or retract into the housing through the avoiding opening; the cleaning driving device is arranged on the telescopic mechanism.

4. The wall-mounted air conditioner indoor unit according to claim 1, wherein: the end defining the length of the air inlet cover is rotatably connected to the end defining the length of the ventilation opening; and the air inlet cover rotates about its rotation center axis into the duct cavity to open the ventilation opening.

5. The wall-mounted air conditioner indoor unit according to claim 1, wherein: the end defining the length of the air outlet plate is rotatably connected to the end defining the length of the air outlet opening.

6. The wall-mounted air conditioner indoor unit according to claim 5, wherein: the air outlet plate rotates about its rotation center axis to the outside of the duct barrel to open the air outlet opening, and the air outlet plate is also used for guiding the airflow flowing out of the air outlet opening in the vertical direction.

7. The wall-mounted air conditioner indoor unit according to claim 1, wherein: the avoiding opening is arranged extending along the length direction of the housing; the supply air opening is arranged extending along the length direction of the volute; the ventilation opening and the air outlet opening are arranged extending along the axial direction of the duct barrel.

8. The wall-mounted air conditioner indoor unit according to claim 1, wherein: the rotation center axis of the duct barrel passes through the geometric center points of the left and right end faces of the duct barrel; the outer contour shape of the cross section of the duct barrel is circular.

9. The wall-mounted air conditioner indoor unit according to claim 1, further comprising: an indoor heat exchanger provided in the housing; a water pan arranged at the bottom end of the indoor heat exchanger and provided on the volute. ​ a water delivery pipe, a first end of which is communicated with the water outlet of the water pan, and a second end of which is communicated with the air duct cavity through the left end or the right end of the air duct barrel, and a center axis of the second end of the water delivery pipe is collinear with the center axis of rotation of the air duct barrel; a first electrically-operated opening and closing water valve is arranged on the water outlet.

10. The wall-mounted air conditioner indoor unit according to claim 1, wherein a water outlet is further arranged on the air duct barrel, and a second electrically-operated opening and closing water valve is arranged on the water outlet; and the water outlet is arranged on the circumferential side of the air duct barrel; or the water outlet is arranged on the left end or the right end of the air duct barrel, and the water outlet is arranged away from the center axis of rotation of the air duct barrel.

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