Air conditioner indoor unit

Abstract

An air conditioner indoor unit is provided. The air conditioner indoor unit includes a housing, a filter, and a self-cleaning assembly. The self-cleaning assembly includes a base, a first reel, a second reel, a cleaning brush assembly, a cleaning component, and at least one position limiting component. The cleaning brush assembly includes a cleaning brush base, a cleaning brush, and an elastic material. The cleaning brush is configured to clean foreign matter on the filter during a process in which the filter is wound around the first reel or the second reel, or during a process in which the filter is released from the first reel or the second reel. The at least one position limiting component is provided on an inner wall of the base, and is located on at least one of a side closer to the filter and a side farther from the filter of the cleaning component. The position limiting component is configured to bump against the cleaning brush and slowly elastically deform the elastic material when the elastic material tends to be compressed or stretched during a process in which the cleaning brush base rotates.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority from the PCT international patent application having application number PCT / CN2023 / 096723, filed on May 29, 2023, the PCT international patent application having application number PCT / CN2023 / 105581, filed on July 3, 2023, the Chinese patent application having application number 202321340922.8, filed on May 29, 2023, and the Chinese patent application having application number 202321430623.3, filed on June 6, 2023, the entire disclosures of which are incorporated herein by reference. 、 The Chinese patent application having application number 202223608409.0 filed on December 30, 2022, claims priority based on the Chinese patent application having application number 202223602180.X filed on December 30, 2022, and the PCT international patent application having application number PCT / CN2023 / 105581, claims priority based on the Chinese patent application having application number 202321340922.8 filed on May 29, 2023.

[0002] The present disclosure relates to the field of air conditioning technology, and more particularly to an air conditioner indoor unit. [Background technology]

[0003] Air conditioners are an essential part of home life. The indoor unit of an air conditioner is installed indoors as part of the air conditioner and is used to raise or lower the temperature in the room by exchanging heat with the air inside the room. Summary of the Invention [Means for solving the problem]

[0004] In one aspect, an air conditioner indoor unit is provided. The air conditioner indoor unit includes a housing, a filter, and a self-cleaning assembly. The housing has an inlet and an outlet. The filter is configured to cover the inlet and filter foreign matter in indoor air. The self-cleaning assembly is configured to remove foreign matter on the filter. The self-cleaning assembly includes a base, a first reel, a second reel, a cleaning brush assembly, a cleaning part, and at least one position limiting part. The base is connected to the housing. The first reel is rotatably connected to the base and connected to one end of the filter. The second reel is rotatably connected to the base and connected to the other end of the filter. The cleaning brush assembly is installed in the base and is located on a side of the second reel away from the filter. The cleaning brush assembly includes a cleaning brush base, a cleaning brush, and an elastic material. The cleaning brush base is rotatably connected to the base. The cleaning brush is movably installed on the cleaning brush base and abuts against a part of the filter. The cleaning brush is configured to clean foreign matter on the filter during a process in which the filter is wound around the first reel or the second reel or released from the first reel or the second reel. The elastic material is provided between the cleaning brush base and the cleaning brush. The cleaning part is provided on an inner wall of the base and located on one side of the cleaning brush assembly. The cleaning part is configured to clean foreign matter on the cleaning brush during a process in which the cleaning brush base rotates. The at least one position limiting part is provided on an inner wall of the base and located on at least one of a side of the cleaning part closer to the filter and a side of the cleaning part farther from the filter. The position limiting part is configured to strike the cleaning brush and slowly elastically deform the elastic material when the elastic material tends to be compressed or stretched during a process in which the cleaning brush base rotates. [Brief description of the drawings]

[0005] [Figure 1] 1 is a perspective view of an air conditioner indoor unit according to some embodiments. [Diagram 2] FIG. 1 is a perspective view of a housing of an air conditioner indoor unit according to some embodiments. [Diagram 3] FIG. 3 is a partially enlarged view of circle A in FIG. [Figure 4] FIG. 1 is a front view of an air conditioner indoor unit according to some embodiments. [Diagram 5] 5 is a cross-sectional view taken along the line BB in FIG. 4. [Figure 6] FIG. 2 is a perspective view of a base of an air conditioner indoor unit according to some embodiments. [Figure 7A] FIG. 2 is a cross-sectional view of a base of an air conditioner indoor unit according to some embodiments. [Figure 7B] FIG. 2 is a perspective view of a first reel and a second reel of an air conditioner indoor unit according to some embodiments. [Figure 8A] 1A to 1C are structural diagrams of a first portion of a first reel or a third portion of a second reel of an air conditioner indoor unit according to some embodiments. [Figure 8B] 10A to 10C are structural diagrams of a second portion of the first reel or a fourth portion of the second reel of an air conditioner indoor unit according to some embodiments. [Figure 9] FIG. 1 is a perspective view of an air conditioner indoor unit with a panel removed according to some embodiments. [Figure 10] FIG. 1 is a perspective view of an air conditioner indoor unit with a panel and a housing removed according to some embodiments. [Figure 11] FIG. 11 is a partially enlarged view of the circle C in FIG. [Figure 12] FIG. 11 is a perspective view of another base of an air conditioner indoor unit according to some embodiments. [Figure 13] 2 is a structural diagram of a link, a transmission assembly and a drive assembly of an air conditioner indoor unit according to some embodiments. [Figure 14] FIG. 14 is a partially enlarged view of circle D in FIG. [Figure 15] FIG. 1 is a perspective view of an air conditioner indoor unit with a panel and one base removed according to some embodiments. [Figure 16] FIG. 16 is a partial enlarged view of circle E in FIG. [Figure 17] 1 is a structural diagram of a filter of an air conditioner indoor unit according to some embodiments. [Figure 18] FIG. 10 is a block diagram of another air conditioner indoor unit according to some embodiments. [Figure 19] FIG. 11 is a perspective view of another air conditioner indoor unit according to some embodiments. [Figure 20] FIG. 13 is an exploded view of a housing and self-cleaning assembly of another air conditioner indoor unit according to some embodiments. [Figure 21] FIG. 13 is an exploded view of another air conditioner indoor unit self-cleaning assembly according to some embodiments. [Figure 22] 22 is a partially enlarged view of circle P in FIG. 21. FIG. [Diagram 23] FIG. 13 is a cross-sectional view of another air conditioner indoor unit self-cleaning assembly according to some embodiments. [Figure 24] FIG. 11 is an exploded view of a cleaning brush assembly for another air conditioner indoor unit according to some embodiments. [Diagram 25] FIG. 13 is another exploded view of a housing and self-cleaning assembly of another air conditioner indoor unit according to some embodiments. [Figure 26] FIG. 11 is a cross-sectional view of another indoor unit according to some embodiments. [Figure 27] 27 is a partial enlarged view of circle Q in FIG. 26 when the cleaning brush is in the first position. [Figure 28] 27 is a partial enlarged view of circle Q in FIG. 26 when the cleaning brush is in the second position. [Figure 29] 27 is a partial enlarged view of circle Q in FIG. 26 when the cleaning brush is in the third position. [Diagram 30] 1 is a structural diagram of a base front cover according to some embodiments. [Diagram 31] 13 is a structural view of the base front cover according to some embodiments from a different angle. FIG. [Diagram 32]FIG. 13 is an exploded view of another air conditioner indoor unit self-cleaning assembly according to some embodiments. [Diagram 33] FIG. 13 is an exploded view of a drive assembly of another air conditioner indoor unit according to some embodiments. [Diagram 34] FIG. 11 is a perspective view of a stopper portion of another air conditioner indoor unit according to some embodiments. [Diagram 35] FIG. 11 is another block diagram of another air conditioner indoor unit according to some embodiments. [Diagram 36] FIG. 11 is another block diagram of another air conditioner indoor unit according to some embodiments. [Figure 37] 10 is a flowchart of a method for executing a control assembly of another air conditioner indoor unit according to some embodiments. [Figure 38] 11 is a flowchart of another method of performing a control assembly of an air conditioner indoor unit according to some embodiments. [Figure 39] 13 is a flowchart of yet another method of performing a control assembly of another air conditioner indoor unit according to some embodiments. [Diagram 40] 13 is a flowchart of yet another method of performing a control assembly of another air conditioner indoor unit according to some embodiments. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0006] Hereinafter, some embodiments of the present disclosure will be described clearly and completely with reference to the drawings. Of course, the embodiments described herein are only a part of the embodiments of the present disclosure, and are not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments that can be conceived by a person skilled in the art shall be included in the scope of the present disclosure.

[0007] In this specification, the use of "applied to" or "disposed to" is intended to be open and inclusive language and does not exclude devices adapted or arranged to perform additional tasks or steps.

[0008] In the description of this application, it should be understood that the orientations or positional relationships indicated by terms such as "center," "up," "down," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, based on the orientations or positional relationships shown in the drawings, are for convenience or simplification of the description of this application, and do not indicate or imply that the devices or elements referred to have a particular orientation or are required to be constructed or operated in a particular orientation, and should not be understood as limiting this application.

[0009] Hereinafter, for convenience of explanation, the expressions of up, down, left, right, front, and rear in this disclosure are based on the state when the air conditioner indoor unit is in operation, unless otherwise specified. When the air conditioner indoor unit is in operation, the side facing the user is the front side, and the opposite side is the rear side. The height direction of the air conditioner indoor unit is the up-down direction. The length direction of the air conditioner indoor unit is the left-right direction, and the thickness direction of the air conditioner indoor unit is the front-rear direction.

[0010] With the spread of air conditioners, the demands of users for air conditioners are also increasing. An air conditioner indoor unit includes an air inlet and an air outlet. A filter is installed at the air inlet to filter the air entering the air conditioner indoor unit and prevent foreign matter such as dust in the air from entering the air conditioner indoor unit. After the air conditioner indoor unit has been operating for a certain period of time, there may be too much foreign matter such as dust adhering to the filter, which may clog part of the filter, reduce the amount of air intake, and reduce the cooling efficiency or heating efficiency of the air conditioner.

[0011] Typically, a roller brush is installed in an indoor unit of an air conditioner, and foreign matter adhering to the filter is removed by the roller brush, so that the filter maintains a high filtering ability and maintains the cooling or heating efficiency of the indoor unit of the air conditioner. When the indoor unit of the air conditioner is operated for a certain period of time, foreign matter adheres to the filter, and there is a need to remove the filter assembly and clean the filter, roller brush, and other structures in the filter assembly. In the process of removing the filter assembly, a drive motor for driving the filter to move relative to the roller brush is connected to the filter, so that the drive motor must be removed before removing the filter assembly. However, when removing the filter assembly, there is a possibility of a safety hazard, such as electric shock due to contact with the drive motor. Furthermore, since the filter assembly is not easily attached or detached, the assembly efficiency of the indoor unit of the air conditioner is low, and it is disadvantageous for users to clean the filter assembly.

[0012] In some embodiments of the present disclosure, an air conditioner indoor unit 1000 is provided. As shown in Figures 1, 5, and 6, the air conditioner indoor unit 1000 includes a housing 100, a filtration assembly 200, a self-cleaning assembly 300, a drive assembly 400 (see Figure 7B), and a transmission assembly 500 (see Figure 11).

[0013] The housing 100 includes a front panel 191, a back panel 192, a first side panel 193, and a second side panel 194. The front panel 191 is a side panel that is farther from the wall when the air conditioner indoor unit is attached to the wall of a room. The back panel 192 is a side panel that is closer to the wall when the indoor unit is attached to the wall of a room. The first side panel 193 and the second side panel 194 are connected to the front panel 191 and the back panel 192, respectively, and extend along a direction perpendicular to the front panel 191 and the back panel 192, respectively. For example, the first side panel 193 is a side panel on one side in the length direction of the housing 100 (i.e., the left-right direction shown in FIG. 1), and the second side panel 194 is a side panel on the other side in the length direction of the housing 100 (i.e., the left-right direction shown in FIG. 1). For example, the first side plate 193 is a left side plate of the air conditioner indoor unit 1000, and the second side plate 194 is a right side plate of the air conditioner indoor unit 1000.

[0014] The housing 100 has an inlet 110. For example, a part of the top of the housing 100 is opened to form the inlet 110. The filter assembly 200 is installed in the housing 100 and is located at the inlet 110. The filter assembly 200 is configured to filter air entering the air conditioner indoor unit 1000 from the inlet 110 and prevent foreign matter in the air from entering the air conditioner indoor unit 1000. The self-cleaning assembly 300 is installed in the housing 100 and configured to remove foreign matter attached to the filter assembly 200.

[0015] The drive assembly 400 is installed on the housing 100, and the transmission assembly 500 is installed within the housing 100. The transmission assembly 500 is connected to the self-cleaning assembly 300 and the drive assembly 400, respectively, and is configured to move the self-cleaning assembly 300 under the driving of the drive assembly 400, cause the self-cleaning assembly 300 to remove foreign matter attached to the filter assembly 200, perform a self-cleaning operation, and maintain the cooling efficiency or heating efficiency of the air conditioner indoor unit 1000.

[0016] 2 and 5, the air conditioner indoor unit 1000 further includes an indoor heat exchanger 600, a fan assembly 700, and an air outlet. The indoor heat exchanger 600 is installed in the housing 100 and configured to exchange heat with indoor air entering through the air inlet 110. The fan assembly 700 is installed on the side of the indoor heat exchanger 600 away from the air inlet 110 and configured to draw in and pump out the indoor air.

[0017] For example, when the fan assembly 700 operates, the fan rotates to draw in indoor air through the air inlet 110, exchanges heat with the indoor heat exchanger 600, and then pumps out the indoor air that has been heat exchanged through the indoor heat exchanger 600 through the air outlet. The air conditioner indoor unit 1000 heats or cools the indoor air through the indoor heat exchanger 600, thereby raising or lowering the indoor temperature and achieving a heating or cooling effect.

[0018] 6, 7A, and 7B, the filtration assembly 200 includes a filter 210. The filter 210 is installed between the air inlet 110 and the indoor heat exchanger 600 (as shown in FIG. 5) and covers the air inlet 110, so that the filter 210 can filter foreign matter in the air entering the air conditioner indoor unit 1000 from the air inlet 110.

[0019] The self-cleaning assembly 300 includes a base 310, a first cleaning brush 320, a first reel 330, and a second reel 340. The base 310 is provided in the housing 100, and includes a mounting member 311 and a bracket 312. One side of the bracket 312 is connected to the side of the mounting member 311 close to the back plate 192, and extends along the thickness direction of the air conditioner indoor unit 1000 (the front-rear direction shown in FIG. 7A). A mounting cavity 313 is defined in the mounting member 311, and a top of the mounting cavity 313 is partially open. The bracket 312 is configured to support the filter 210. The filter 210 is installed on the bracket 312, and can move relative to the bracket 312.

[0020] The first cleaning brush 320, the first reel 330, and the second reel 340 are rotatably installed in the mounting cavity 313, and the first cleaning brush 320, the first reel 330, and the second reel 340 each extend along the length direction of the air conditioner indoor unit 1000. The first cleaning brush 320 includes a first bristle brush 321, and is configured to remove foreign matter attached to the filter 210. The first cleaning brush 320 is installed close to the first reel 330. The first reel 330 and the second reel 340 are installed with a gap therebetween and are approximately parallel. One end of the filter 210 is connected to the first reel 330, and the other end is connected to the second reel 340. The filter 210 is wound around the outer periphery of at least one of the first reel 330 and the second reel 340, and the filter 210 is stretched between the first reel 330 and the second reel 340.

[0021] 5, 10 and 11, the transmission assembly 500 is mounted on the base 310, and the transmission assembly 500 is connected to the first reel 330 and the second reel 340, respectively. The transmission assembly 500 is connected to the filter 210 via the first reel 330 and the second reel 340.

[0022] The driving assembly 400 is installed on the housing 100, and includes a driving gear 410. The driving gear 410 is connected to a power output end. The power output end of the driving assembly 400 is detachably connected to a transmission assembly 500. For example, the driving assembly 400 is a driving motor. The driving assembly 400 may drive the filter 210 to move along a preset track by rotating the first reel 330 and the second reel 340 in opposite directions via the transmission assembly 500. That is, a relative movement occurs between the first cleaning brush 320 and the filter 210, so that different areas of the filter 210 are placed opposite to the first cleaning brush 320.

[0023] For example, the drive assembly 400 rotates the first reel 330 and the second reel 340 via the transmission assembly 500 so that the filter 210 is wound up on the first reel 330 and wound down on the second reel 340, or the filter 210 is wound down on the first reel 330 and wound up on the second reel 340, such that the filter 210 is stretched between the first reel 330 and the second reel 340 and moves relative to the first cleaning brush 320. In this manner, the first cleaning brush 320 can clean the area of ​​the filter 210 opposite it.

[0024] The transmission assembly 500 includes a first driven gear 510, a second driven gear 520, a third driven gear 530, and an intermediate gear 540. The first driven gear 510 is attached to one end of the first reel 330, and the first driven gear 510 meshes with the drive gear 410. The second driven gear 520 is attached to one end of the second reel 340, and the second driven gear 520 meshes with the first driven gear 510. The third driven gear 530 is attached to one end of the first cleaning brush 320, and the third driven gear 530 meshes with the intermediate gear 540. Furthermore, the first driven gear 510 meshes with the intermediate gear 540.

[0025] In the process of operating the self-cleaning assembly 300, the drive assembly 400 operates the drive gear 410 on the power output end to rotate along a first direction, thereby rotating the first driven gear 510 along a second direction, and thus rotating the first reel 330 along the second direction. At the same time, the first driven gear 510 further rotates the second driven gear 520 along the first direction, thereby rotating the second reel 340 along the first direction.

[0026] In this manner, under the action of the first reel 330 and the second reel 340, the filter 210 stretched between the first reel 330 and the second reel 340 moves along a preset trajectory, whereby different areas on the filter 210 face the first cleaning brush 320 in turn, and the first cleaning brush 320 cleans the different areas of the filter 210.

[0027] The first direction is opposite to the second direction. When the first reel 330 rotates in the first direction to wind up the filter 210, the second reel 340 rotates in the second direction to wind down the filter 210.

[0028] 7A, 7B and 11, the first driven gear 510 rotates in a counterclockwise direction under the driving of the drive gear 410, causing the first reel 330 to rotate in a counterclockwise direction and winding up the filter 210. Then, while the first driven gear 510 rotates in a counterclockwise direction, it causes the second driven gear 520 to rotate in a clockwise direction, thereby causing the second reel 340 to rotate in a clockwise direction and winding down the filter 210.

[0029] It is understood that the first driven gear 510 rotates along a clockwise direction under the driving of the drive gear 410, causing the first reel 330 to rotate along a clockwise direction and wind up the filter 210, and then the first driven gear 510 rotates along a clockwise direction and at the same time causes the second driven gear 520 to rotate along a counterclockwise direction, thereby causing the second reel 340 to rotate along a counterclockwise direction and wind up the filter 210.

[0030] At the same time, the first driven gear 510 further rotates the intermediate gear 540 along the first direction, so that the intermediate gear 540 rotates the third driven gear 530 along the second direction, and thus rotates the first cleaning brush 320 along the second direction. Thus, the rotation direction of the first cleaning brush 320 is opposite to the movement direction of the filter 210, which is advantageous for improving the cleaning effect of the first cleaning brush 320 on the filter 210.

[0031] For example, since the first driven gear 510 and the second driven gear 520 have the same number of teeth, the rotation speeds of the first reel 330 and the second reel 340 are the same, so that the filter 210 is stretched on the first reel 330 and the second reel 340.

[0032] In some embodiments, as shown in Figures 10, 11 and 12, the base 310 further includes an accommodation cavity 314. One side of the mounting member 311 along the length direction of the air conditioner indoor unit 1000 is recessed toward the other side, thereby forming the accommodation cavity 314. The transmission assembly 500 is installed in the accommodation cavity 314, that is, the first driven gear 510, the second driven gear 520, the third driven gear 530 and the intermediate gear 540 are each installed in the accommodation cavity 314. Providing the accommodation cavity 314 in the base 310 is advantageous for protecting and concealing the first driven gear 510, the second driven gear 520, the intermediate gear 540 and the third driven gear 530, is advantageous for routing wiring within the air conditioner indoor unit 1000, and prevents a working component (e.g., the intermediate gear 540) from damaging other components (e.g., the fan assembly 700).

[0033] In some embodiments, as shown in Fig. 12, a first opening 3141, a second opening 3142, and a third opening 3143 communicating with the mounting cavity 313 are provided on the bottom side of the receiving cavity 314. As shown in Fig. 14, a first prism 511 is provided in the center of the first driven gear 510, and a first hole that fits the first prism 511 is provided on the end of the first reel 330. The first prism 511 passes through the first opening 3141 and is inserted into the first hole, thereby fixedly connecting the first driven gear 510 and the first reel 330.

[0034] A second prism 521 is provided in the center of the second driven gear 520, and a second hole that fits the second prism 521 is provided at the end of the second reel 340. The second prism 521 passes through the second opening 3142 and is inserted into the second hole, thereby fixedly connecting the second driven gear 520 and the second reel 340. A third prism 531 is provided in the center of the third driven gear 530, and a third hole that fits the third prism 531 is provided at the end of the first cleaning brush 320. The third prism 531 passes through the third opening 3143 and is inserted into the third hole, thereby fixedly connecting the third driven gear 530 and the first cleaning brush 320.

[0035] Installing the first opening 3141, the first prism 511, the first hole, the second opening 3142, the second prism 521, the second hole, the third opening 3143, the third prism 531 and the third hole within the air conditioner indoor unit 1000 is advantageous for realizing the connection between the first driven gear 510 and the first reel 330, the connection between the second driven gear 520 and the second reel 340, and the connection between the third driven gear 530 and the first cleaning brush 320, thereby improving the stability of rotation.

[0036] In this manner, indoor air enters the housing 100 through the air inlet 110 under the action of the fan assembly 700, is filtered through the filter 210, and then flows to the indoor heat exchanger 600. The indoor air then undergoes heat exchange through the indoor heat exchanger 600, and is then blown out through the air outlet.

[0037] After the air conditioner indoor unit 1000 has been operating for a certain period of time, foreign matter in the indoor air is filtered through the filter 210 and then accumulates on the surface of the filter 210, causing a large amount of foreign matter to adhere to the filter 210, which may affect the filtering and suction effects of the filter 210. When a large amount of foreign matter adheres to the filter 210, the self-cleaning assembly 300 of the air conditioner indoor unit 1000 can remove the foreign matter adhered to the filter 210 and maintain the filtering ability of the filter 210, thereby improving the cooling or heating efficiency of the air conditioner indoor unit 1000.

[0038] 8A and 8B, the first reel 330 includes a first portion 331 and a second portion 332, and the first portion 331 and the second portion 332 are removably connected. The second reel 340 includes a third portion 341 and a fourth portion 342, and the third portion 341 and the fourth portion 342 are removably connected. One end of the filter 210 is sandwiched between the first portion 331 and the second portion 332, and the other end of the filter 210 is sandwiched between the third portion 341 and the fourth portion 342.

[0039] Furthermore, by installing and clamping the first reel 330 and the second reel 340 as a two-part structure that is removably connected, and fixing both ends of the filter 210 to the first reel 330 and the second reel 340, respectively, the stability of the connection between the first reel 330 and the second reel 340 by the filter 210 can be improved, which is advantageous in maintaining the filter stretched between the first reel 330 and the second reel 340.

[0040] The first portion 331, the second portion 332, the third portion 341, and the fourth portion 342 each extend along the thickness direction of the air conditioner indoor unit 1000 (the front-to-rear direction shown in FIGS. 8A and 8B ), and each have a striped structure with an arc-shaped cross section. The outer surfaces of the first portion 331, the second portion 332, the third portion 341, and the fourth portion 342 are smooth, which is advantageous for winding up and down the filter 210 on the first reel 330 and the second reel 340.

[0041] A first locking portion 333 is provided on the inner surface of the first portion 331, and a second locking portion 334 is provided on the inner surface of the second portion 332. The first locking portion 333 and the second locking portion 334 are locked and connected to each other, thereby detachably connecting the first portion 331 and the second portion 332. A third locking portion 343 is provided on the inner surface of the third portion 341, and a fourth locking portion 344 is provided on the inner surface of the fourth portion 342. The third locking portion 343 and the fourth locking portion 344 are locked and connected to each other, thereby detachably connecting the third portion 341 and the fourth portion 342. In this way, the connection between the first portion 331 and the second portion 332 and the connection between the third portion 341 and the fourth portion 342 are realized by the locking connection, which is advantageous for the user to remove the filter 210 and wash it.

[0042] 2, 9, 10 and 15, an air conditioner indoor unit 1000 includes a plurality of filtration assemblies 200 and a plurality of self-cleaning assemblies 300. The housing 100 includes a plurality of air inlets 110. Each filtration assembly 200 corresponds to one of the self-cleaning assemblies 300, and each air inlet 110 corresponds to one of the filtration assemblies 200.

[0043] It will be understood that installing multiple intake ports 110, multiple filtering assemblies 200 and multiple self-cleaning assemblies 300 in the air conditioner indoor unit 1000 is advantageous in increasing the intake air volume and exhaust air volume of the air conditioner indoor unit 1000, and therefore the cooling efficiency or heating efficiency of the air conditioner indoor unit 1000 can be improved.

[0044] The air conditioner indoor unit 1000 further includes a plurality of driving assemblies 400 and a plurality of transmission assemblies 500, and each driving assembly 400 corresponds to one transmission assembly 500. Each driving assembly 400 is connected to a filter assembly 200 via its corresponding transmission assembly 500. In this manner, each filter assembly 200 can be driven individually to perform a self-cleaning operation.

[0045] 13 and 14 , the air conditioner indoor unit 1000 further includes at least one link 550. The multiple transmission assemblies 500 are connected via the link 550. The power output end of the drive assembly 400 is connected to the link 550. In this manner, the drive assembly 400 can drive the multiple self-cleaning assemblies 300 to operate via the link 550 and the multiple transmission assemblies 500, which is advantageous in simplifying the structure of the air conditioner indoor unit 1000.

[0046] In some embodiments, as shown in FIG. 12, the base 310 further comprises a cutout 315. For example, the back plate of the receiving cavity 314 may be 192 The side closer to the first driven gear 510 is opened, and a notched opening 315 is formed. A part of the first driven gear 510 protrudes from the notched opening 315, and the driving gear 410 meshes with the part of the first driven gear 510.

[0047] It is understood that the detachable connection between the transmission assembly 500 and the drive assembly 400 is realized by the meshing between the first driven gear 510 and the drive gear 410. Providing the notch 315 on the base 310 is advantageous for realizing the meshing between the drive gear 410 and the first driven gear 510. When removing the transmission assembly 500, the drive gear 410 is not removed from the housing 100 together with the mounting member 311, and the first driven gear 510 is removed from the housing 100 together with the mounting member 311.

[0048] That is, the power output end of the drive assembly 400 and the transmission assembly 500 are detachably connected, but since the transmission assembly 500 is connected to the self-cleaning assembly 300 and the filtering assembly 200 is connected to the self-cleaning assembly 300, when a user needs to remove the filtering assembly 200 and the self-cleaning assembly 300 to wash them, the user can remove the base 310 from the housing 100 to remove the self-cleaning assembly 300 from the housing 100. At the same time, the drive assembly 400 is not removed from the housing 100 together with the transmission assembly 500, and the transmission assembly 500 is removed from the housing 100 together with the self-cleaning assembly 300.

[0049] In this manner, a user can remove the filtration assembly 200 and the self-cleaning assembly 300 and clean the filtration assembly 200 and the self-cleaning assembly 300 without touching the drive assembly 400, which is advantageous in avoiding safety hazards caused by touching the drive assembly 400. Furthermore, the drive assembly 400 is hidden within the housing 100, which is advantageous in providing protection and avoiding damage from external influences.

[0050] In some embodiments, as shown in FIG. 2 , the housing 100 further includes a through-hole 120 and a mounting groove 130. For example, a part of the front side of the housing 100 is opened to form the through-hole 120. The mounting groove 130 is defined in the housing 100. The front side of the mounting groove 130 is opened. The through-hole 120 communicates with the mounting groove 130, and the through-hole 120 is located above the mounting groove 130. The mounting member 311 is provided in the mounting groove 130. The self-cleaning assembly 300 is provided inside the mounting member 311, and the transmission assembly 500 is provided outside the mounting member 311. The bracket 312 is installed in the housing 100 through the through-hole 120.

[0051] The first reel 330, the second reel 340 and the first cleaning brush 320 are installed in the mounting member 311, the mounting member 311 is installed in the mounting groove 130, one side of the bracket 312 is connected to the mounting member 311 and extends rearward through the through hole 120. Therefore, the user can remove the bracket 312 and the filter 210 together with the mounting member 311 from the housing 100 by removing the mounting member 311 from the mounting groove 130 through the through hole 120, thereby realizing removal of the filter assembly 200 and the self-cleaning assembly 300. In this way, it is advantageous to reduce the difficulty of removing and installing the filter assembly and the self-cleaning assembly, and to facilitate the user's cleaning of the removed filter assembly 200 and the self-cleaning assembly 300.

[0052] Similarly, the user can attach the mounting member 311 into the mounting groove 130 through the through hole 120, so that the bracket 312 and the filter 210 together with the mounting member 311 are attached to the housing 100, thereby realizing the installation of the filtration assembly 200 and the self-cleaning assembly 300.

[0053] 9, the air conditioner indoor unit 1000 further includes a position limiting block 160. The position limiting block 160 is rotatably installed on the front plate 191 of the housing 100 and is adjacent to the mounting groove 130. The position limiting block 160 is configured to be rotatably switched between a locked position and an unlocked position.

[0054] For example, when the position limiting block 160 is in the locked position, at least a portion of the position limiting block 160 is in front of the mounting member 311, and therefore prevents the mounting member 311 from sliding out of the mounting groove 130. When the position limiting block 160 is in the unlocked position, the position limiting block 160 is on the front plate 191 of the housing 100, and therefore allows the mounting member 311 to slide forward and disengage from the mounting groove 130.

[0055] It should be noted that when the air conditioner indoor unit 1000 is in operation, the position limiting block 160 is in a locked position to prevent the mounting member 311 from sliding out of the mounting groove 130. When the filtration assembly 200 needs to be cleaned, the mounting member 311 can be removed by rotating the position limiting block 160 to an unlocked position.

[0056] For example, the air conditioner indoor unit 1000 includes a plurality of position limiting blocks 160. Providing a plurality of position limiting blocks 160 in the housing 100 is advantageous for a user to attach and detach the filter assembly 200.

[0057] 15 , the self-cleaning assembly 300 further includes a dust collection box 350 and an ash removal box 360. The dust collection box 350 is installed on the base 310 and located below the first cleaning brush 320. The dust collection box 350 is configured to collect foreign matter removed from the filter 210.

[0058] As shown in Fig. 3 and Fig. 9, the air conditioner indoor unit 1000 further includes an insertion groove 150. The insertion groove 150 is provided in the front plate 191 of the housing 100. The ash drop box 360 is installed in the insertion groove 150, and the ash drop box 360 is located below the dust collection box 350. The insertion groove 150 has a first side wall 151 and a second side wall 152 that are provided at an interval along the length direction of the air conditioner indoor unit 1000 (i.e., the left-right direction in Fig. 9). The first side wall 151 is provided with a first engagement groove 153, and the second side wall 152 is provided with a second engagement groove 154. As shown in Fig. 12, the ash drop box 360 is provided with a first engagement block and a second engagement block that are provided at an interval along the length direction of the air conditioner indoor unit 1000 (i.e., the left-right direction in Fig. 9).

[0059] The ash removal box 360 is removably mounted in the insertion groove 150 by the engagement between the first engagement block and the first engagement groove 153 and the engagement between the second engagement block and the second engagement groove 154 .

[0060] 15 and 16 , the self-cleaning assembly 300 further includes a second cleaning brush 370. The second cleaning brush 370 is installed in the dust collection box 350 and configured to brush away foreign matter attached to the first cleaning brush 320 into the dust collection box 350. The second cleaning brush 370 includes a second bristle brush 371, which is configured to be inserted into the first cleaning brush 320.

[0061] When the self-cleaning assembly is operated, some foreign matter may adhere to the first bristle brush 321, and the second bristle brush 371 can brush off the foreign matter adhered to the first bristle brush 321 into the dust collection box 350. Therefore, the first bristle brush 321 can contact the filter 210 without any foreign matter attached thereto to remove the foreign matter adhered to the filter 210. 210 This is advantageous in improving the cleaning effect.

[0062] In some embodiments, as shown in Figures 1 and 4, the air conditioner indoor unit 1000 further includes a panel 800. The panel 800 is removably connected to the front side of the housing 100 and seals the through-hole 120. For example, when the air conditioner indoor unit 1000 is in operation, the panel 800 is installed to cover the front side of the housing 100, so as to harmonize the appearance of the air conditioner indoor unit 1000. When the filtration assembly 200 and the self-cleaning assembly 300 need to be removed for cleaning, the panel 800 can be removed from the front side of the housing 100, and then the filtration assembly 200 and the self-cleaning assembly 300 can be removed from the housing 100 through the through-hole 120.

[0063] 2, a first fitting portion is provided on the inner surface of the panel 800, and a second fitting portion 140 is provided on the front side of the housing 100. The first fitting portion and the second fitting portion 140 are connected by engagement, so that the panel 800 is removably connected to the front side of the housing 100.

[0064] 17 , filter 210 includes a filtering section 211 and a blocking section 212 connected in sequence. Filter section 211 is configured to filter air entering housing 100 from suction port 110. Blocking section 212 is configured to block air entering housing 100 from suction port 110.

[0065] For example, when filter 210 moves along a preset trajectory, filter 210 can move between a filtering position and a blocking position. When filter 210 is in the filtering position, filtering unit 211 covers suction port 110 and filters air entering housing 100 from suction port 110. When filter 210 is in the blocking position, blocking unit 212 covers suction port 110 and blocks air entering housing 100 from suction port 110.

[0066] When the air conditioner indoor unit 1000 is operating, filter 210 is in the filtering position, and filtering section 211 covers suction port 110 to filter the air entering through suction port 110. When the air conditioner indoor unit is stopped, filter 210 moves from the filtering position to the blocking position, and blocking section 212 covers suction port 110, so that air and dust are blocked by blocking section 212, preventing dust from entering the inside of housing 100.

[0067] It is understood that the filtering section 211 is an area having a plurality of small holes, and the plurality of holes on the filtering section 211 can filter foreign matter such as large particles of dust in the air and allow the filtered air to enter the housing 100. The blocking section 212 is an area having no holes, and air and dust cannot pass through. For example, the blocking section 212 is made of a plastic film, and a heat fusion section is provided between the blocking section 212 and the filtering section 211 to connect the blocking section 212 and the filtering section 211.

[0068] In this way, by providing the blocking section 212 in the filter 210, air and dust cannot enter the housing 100 when the air conditioner indoor unit 1000 stops operating, which prevents dust and other particles from entering the inside of the housing 100 and prevents foreign matter such as dust from adhering to the indoor heat exchanger 600 or fan assembly 700 inside the housing 100. This makes the inside of the air conditioner indoor unit 1000 cleaner, which is advantageous for improving the cooling or heating effect of the air conditioner indoor unit 1000.

[0069] In some embodiments, the air conditioner indoor unit 1000 further includes a sensor and a controller. The sensor is configured to send a signal representing execution of a self-cleaning mode to the controller. For example, the signal is a signal instructing execution or stop of the self-cleaning mode of the air conditioner indoor unit 1000. When the amount of foreign matter on the filter 210 reaches a preset amount, the sensor sends a signal representing execution of the self-cleaning mode to the controller. When the amount of foreign matter on the filter 210 is less than the preset amount, the sensor sends a signal representing stop of the self-cleaning mode to the controller.

[0070] The controller is configured to receive a signal from the sensor, respond to the signal, and control the air conditioner indoor unit 1000 to perform an operation instructed by the signal. For example, when a signal indicative of execution of a self-cleaning mode is received from the sensor, the controller controls the air conditioner indoor unit 1000 to execute the self-cleaning mode. When a signal indicative of stopping the self-cleaning mode is received from the sensor, the controller controls the air conditioner indoor unit 1000 to stop the self-cleaning mode.

[0071] For example, after the air conditioner indoor unit 1000 has been operating for a certain period of time, the indoor air continues to flow from the air inlet 110 to the indoor heat exchanger 600 under the action of the fan assembly 700, and after heat exchange in the indoor heat exchanger 600, is sent from the air outlet to the room by the fan assembly 700. Therefore, the amount of foreign matter adhering to the filter 210 facing the air inlet 110 in the air conditioner indoor unit 1000 increases. When the amount of foreign matter on the filter 210 reaches the preset amount, the sensor sends a signal indicating the execution of the self-cleaning mode to the controller.

[0072] The controller receives a signal indicating the execution of the self-cleaning mode from the sensor and controls the air conditioner indoor unit 1000 to execute the self-cleaning mode. When the self-cleaning mode is executed, the drive assembly 400 rotates the first reel 330 and the second reel 340 in opposite directions via the transmission assembly 500, and drives the filter 210 to move along a preset trajectory. The first cleaning brush 320 is installed opposite to a different region of the filter 210 and can clean the region of the filter 210 that is installed opposite to the first cleaning brush 320.

[0073] When the first reel 330 and the second reel 340 rotate in opposite directions, the first cleaning brush 320 comes into contact with the first reel 330 to remove foreign objects on the filter 210 wound around the first reel 330, and the foreign objects fall into the dust collection box 350, thereby realizing collection of the foreign objects. When there are a lot of foreign objects in the dust collection box 350, the dust collection box 350 can be removed for cleaning.

[0074] In some embodiments of the present disclosure, another air conditioner indoor unit 100A is provided. As shown in Fig. 18, the air conditioner indoor unit 100A includes a housing 10, an indoor heat exchanger 20, a fan assembly 30, at least one filter 40, at least one self-cleaning assembly 50, at least one drive assembly 60, and at least one transmission assembly 70.

[0075] 19 to 21, the housing 10 includes a front panel 12, a back panel 13, a first side panel 14, and a second side panel 15. The first side panel 14 and the second side panel 15 are connected to the front panel 12 and the back panel 13, respectively, and extend along a direction perpendicular to the front panel 12 and the back panel 13, respectively.

[0076] The housing 10 has at least one air inlet 11 and an air outlet. A part of the top of the housing 10 is opened, and the air inlet 11 is formed therein.

[0077] A part of the bottom of the housing 10 is opened to form the air outlet. The indoor heat exchanger 20 is provided inside the housing 10 and configured to exchange heat with the indoor air entering through the air inlet 11. The fan assembly 30 is installed on the side of the indoor heat exchanger 20 away from the air inlet 11 and configured to draw in and pump out the indoor air.

[0078] The filter 40 is installed between the air inlet 11 and the indoor heat exchanger 20, and covers the air inlet 11. The filter 40 is configured to filter the air entering the air conditioner indoor unit 100A from the air inlet 11, and to prevent foreign matter in the air from entering the air conditioner indoor unit 100A.

[0079] The self-cleaning assembly 50 is installed in the housing 10 and configured to clean foreign matter adhering to the filter 40. The drive assembly 60 is installed on the housing 10, and the transmission assembly 70 is installed in the housing 10. The drive assembly 60 is configured to drive the transmission assembly 70 to rotate. The transmission assembly 70 is connected to the self-cleaning assembly 50 and the drive assembly 60, respectively, and configured to move the self-cleaning assembly under the driving of the drive assembly 60, causing the self-cleaning assembly 50 to remove foreign matter adhering to the filter 40, thereby maintaining the cooling efficiency or heating efficiency of the air conditioner indoor unit 100A.

[0080] In some embodiments, as shown in FIG. 23, the self-cleaning assembly 50 includes a base 51, a second reel 53, a first reel 52, a cleaning brush assembly 54, and a dust collection box 55. The base 51 is provided in the housing 10 and is adjacent to the front plate 12. The base 51 includes a base main body 511A and a bracket 512. One side of the bracket 512 is connected to the side of the base main body 511A close to the back plate 13, and extends along the thickness direction of the housing 10 (i.e., the front-rear direction shown in FIG. 19). The bracket 512 is configured to support the filter 40. The filter 40 is installed on the bracket 512, and may move on the bracket 512 along a preset trajectory.

[0081] The second reel 53, the first reel 52, and the cleaning brush assembly 54 are rotatably connected to the base main body 511A, and the second reel 53, the first reel 52, and the cleaning brush assembly 54 each extend along the length of the housing 10. The second reel 53 and the first reel 52 are spaced apart and substantially parallel to each other. The filter 40 is stretched between the second reel 53 and the first reel 52. The cleaning brush assembly 54 is disposed adjacent to the first reel 52, and is configured to clean foreign matter on the filter 40 when the filter 40 is being wound up by the first reel 52 or the second reel, or when the filter 40 is being wound down by the first reel 52 or the second reel.

[0082] The self-cleaning assembly 50 further includes a cleaning cavity 56. The base main body 511A defines the cleaning cavity 56. The cleaning cavity 56 includes a first opening 563 and a second opening 564. The top of the cleaning cavity 56 is open to form the first opening 563. The bottom of the cleaning cavity 56 is open to form the second opening 564. The second reel 53 is located above the first opening 563, the first reel 52 is located in the first opening 563, and the cleaning brush assembly 54 is located in the cleaning cavity 56. The dust collecting box 55 is disposed below the second opening 564 and configured to accommodate foreign matter swept off the filter 40 by the cleaning brush assembly 54.

[0083] In some embodiments, the second reel 53 and the first reel 52 rotate along opposite directions. During a cleaning process by the self-cleaning assembly 50, the filter 40 is wound up on the first reel 52 and wound down on the second reel 53, or the filter 40 is wound down on the first reel 52 and wound up on the second reel 53.

[0084] In some embodiments, as shown in FIGS. 21 and 24 , the cleaning brush assembly 54 includes a cleaning brush base 541, a cleaning brush 542, and at least one elastic member 543. The cleaning brush 542 is movably provided on the cleaning brush base 541 and abuts against a part of the filter 40. The cleaning brush base 541 includes a first mounting portion 5411 and a second mounting portion 5412. The first mounting portion 5411 is provided on the second mounting portion 5412 and connected to the second mounting portion 5412. One end of any one of the at least one elastic members 543 abuts against the first mounting portion 5411 and the other end abuts against the second mounting portion 5412.

[0085] For example, the elastic material 543 is a spring. The cleaning brush 542 is provided on the side of the first mounting portion 5411 away from the second mounting portion 5412. When the cleaning brush 542 abuts against the first reel 52, the first reel 52 applies a force to the cleaning brush 542, i.e., the first reel 52 applies a force to the first mounting portion 5411, thereby causing the first mounting portion 5411 to compress the elastic material 543.

[0086] Since the second mounting portion 5412 does not move along the height direction of the housing 10 (i.e., the up-down direction shown in FIG. 19), the elastic material 543 applies an elastic force to the first mounting portion 5412 of the same magnitude but opposite direction to the force applied by the cleaning brush 542 to the first reel 52, thereby allowing the cleaning brush 542 to elastically abut against the first reel 52. The cleaning brush base 541 abuts the cleaning brush 542 against the first reel 52 via the elastic material 543, and realizes that the cleaning brush 542 abuts against the first reel 52 in the process of rotating the first reel 52 or the cleaning brush base 541, which is advantageous for improving the cleaning ability of the cleaning brush 542 for the filter 40 wound around the first reel 52. At the same time, excessive wear of the cleaning brush 542 due to hard contact between the first reel 52 and the cleaning brush 542 is avoided, and the service life of the cleaning brush 542 is extended.

[0087] It is understood that the cleaning brush 542 abuts against the first reel 52 via the elastic material 543, and when the second reel 53 and the first reel 52 rotate in opposite directions, the cleaning brush 542 abuts against the first reel 52 and can clean the filter 40 that has moved to the abutment site, so that the foreign matter brushed off from the filter 40 falls into the dust collection box 55 and is collected. Since the first reel 52 vibrates or vibrates radially during rotation, the elasticity of the elastic material 543 is advantageous in improving the stability of the abutment between the cleaning brush 542 and the first reel 52 and in avoiding hard contact between the first reel 52 and the cleaning brush 542.

[0088] 25 and 26, the cleaning brush assembly 54 further includes at least one first position limiting part (position limiting part) 565. The at least one first position limiting part 565 is provided on an inner wall of the cleaning cavity 56. The first position limiting part 565 is configured to abut against the cleaning brush 542 and cause the elastic material 543 to slowly elastically deform when the elastic material 543 tends to be compressed or stretched during the process of rotating the cleaning brush base 541.

[0089] After the cleaning brush 542 is separated from the second reel 53, the cleaning brush 542 rotates in a direction away from the cleaning brush base 541. As the cleaning brush base 541 rotates, the side of the cleaning brush 542 closer to the filter 40 engages with the first position limiting part 565. The first position limiting part 565 is configured to limit the movement distance of the cleaning brush 542 relative to the cleaning brush base 541 in order to prevent abnormal noise caused by a sudden movement of the cleaning brush 542 when the cleaning brush 542 is separated from the filter 40.

[0090] The provision of the first position limiting component 565 is advantageous in delaying the deformation process of the elastic material 543 from a compressed state to a tensile state when the cleaning brush 542 is separated from the filter 40, thereby preventing the stability of the elastic material 543 attached between the cleaning brush 542 and the cleaning brush base 541 from being reduced due to rapid and violent movement of the elastic material 543, improving the reliability of the elastic material 543 attached between the cleaning brush 542 and the cleaning brush base 541, preventing irreversible deformation of the elastic material 543, protecting the elastic material 543, extending the service life of the elastic material 543, improving the structural stability of the cleaning brush assembly 54, and avoiding the generation of abnormal noise during the use of the self-cleaning assembly 50.

[0091] 23, 25, and 26, the self-cleaning assembly 50 further includes a cleaning component 59. The cleaning component 59 is provided on an inner wall of the base 51, and the cleaning component 59 is provided on a side of the base front cover 513 close to the cleaning cavity 56. For example, the cleaning component 59 and the base front cover 513 may be connected by an adhesive or an engagement structure. The first position limiting component 565 is located on at least one of a side of the cleaning component 59 close to the filter 40 or a side of the cleaning component 59 away from the filter 40.

[0092] The first position limiting part 565 is located on at least one side in the circumferential direction along the center of the cleaning brush base 541 of the cleaning part 59. The central axis of the cleaning brush base 541 is the rotation axis of the cleaning part 59. The first position limiting part 565 may be installed between the cleaning part 59 and the second reel 53. When the cleaning brush 542 is separated from the filter 40, the cleaning brush 542 first engages with the first position limiting part 565, and then engages with the cleaning part 59, and turns toward the side away from the second reel 53 along the height direction of the housing 10 of the cleaning part 59.

[0093] By installing the cleaning part 59 on the side wall of the cleaning cavity, it is advantageous to realize the self-cleaning function of the cleaning brush assembly 54, and when the cleaning brush 542 needs to be cleaned, the removal of the self-cleaning assembly 50 can be avoided, the difficulty of cleaning the cleaning brush 542 can be reduced, and the cleaning efficiency of the cleaning brush 542 can be improved.

[0094] The first position limiting part 565 is installed adjacent to the cleaning part 59, and the first position limiting part 565 and the cleaning part 59 are respectively located on one side in the circumferential direction of the central axis of the cleaning brush base 541. The cleaning brush assembly 54 can maintain the movement of its original movement locus, and the structures of the cleaning part 59 and the first position limiting part 565 are simple, which is advantageous for reducing the difficulty and cost of manufacture.

[0095] 30 and 31, the first position limiting component 565 includes at least one of a first position limiting portion 5651 and a second position limiting portion 5652. A first end 566 of the first position limiting portion 5651 is adjacent to the cleaning component 59, the first position limiting portion 5651 and the second position limiting portion 5652 are provided on the same side of the cleaning cavity 56, and the first position limiting portion 5651, the cleaning component 59, and the second position limiting portion 5652 are arranged in order along the height direction of the housing 10 (for example, the vertical direction in FIG. 31). The cleaning component 59 is located between the first position limiting portion 5651 and the second position limiting portion 5652.

[0096] As shown in FIG. 27 to FIG. 29, when the cleaning brush 542 moves between the filter 40 and the cleaning component 59, the cleaning brush 542 is engaged with the first position limiting portion 5651 from when the cleaning brush 542 is separated from the filter 40 until when the cleaning brush 542 is separated from the cleaning component 59. After the cleaning brush 542 is separated from the cleaning component 59, the cleaning brush 542 moves toward the side away from the first position limiting portion 5651 of the cleaning component 59 along the height direction of the housing 10, and the cleaning brush 542 is engaged with the second position limiting portion 5652. In this way, it is possible to reduce abnormal noise generated during the movement of the cleaning brush 542. When the cleaning brush 542 rotates from the position where it is engaged with the cleaning component 59 to the position where it is engaged with the first position limiting portion 5651 or the second position limiting portion 5652, the deformation process of the elastic material 543 is relatively gentle. In this way, rapid compression or tension of the elastic material 543 can be avoided, which is beneficial to protect the elastic material 543 and reduces noise generated by the movement of the cleaning brush 542.

[0097] In some embodiments, as shown in FIGS. 27 to 29, the first position limiter 5651 2nd end 567 to the first position limiting portion 5651 1st end 566 In the direction toward the center of the cleaning brush 542, the width of the first position limiting portion 5651 in the thickness direction of the air conditioner indoor unit 1000 gradually decreases. The cleaning brush 542 is further configured to move in a direction away from the center of the cleaning brush base 541 when rotating from the second position to the first position. The first position is the position when the cleaning brush 542 abuts against the filter 40 of the second reel 53. The second position is the position when the cleaning brush 542 abuts against the first position limiting portion 5651.

[0098] 27 and 28, when the cleaning brush 542 rotates from the second position to the first position along the first direction M, the cleaning brush 542 moves in a direction away from the center of the cleaning brush base 541. Here, the first direction M may be a clockwise direction. The second end 567 of the first position limiting portion 5651 is close to the second reel 53, the first end 566 of the first position limiting portion 5651 is close to the cleaning element 59, and the distance between the first end 566 and the center of the cleaning brush base 541 is greater than the distance between the second end 567 and the center of the cleaning brush base 541.

[0099] In the process of rotating the cleaning brush 542 from the second position to the first position, when the cleaning brush 542 moves from the position where it engages with the second end 567 to the position where it engages with the second reel 53, the cleaning brush 542 moves in a direction away from the center of the cleaning brush base 541. In this case, the width of the first position limiting portion 5651 decreases in the direction from the second end 567 to the first end 566. In this way, when the cleaning brush assembly 54 rotates, the deformation process of the elastic material 543 can be delayed, and when moving between the cleaning part 59 and the second reel 53, the cleaning brush 542 engages with the first position limiting portion 5651, improving the stability of the movement of the cleaning brush 542 relative to the cleaning brush base 541 and extending the service life of the cleaning brush assembly 54.

[0100] In some embodiments, as shown in Figs. 27 to 29, the width of the second position limiting portion 5652 in the thickness direction of the air conditioner indoor unit 1000 decreases in a direction from the second end 569 of the second position limiting portion 5652 toward the first end 568 of the second position limiting portion 5652, and the second end 569 of the second position limiting portion 5652 is lower than the cleaning brush assembly 54 along the height direction of the base 51. In this way, it is advantageous for the rotation of the cleaning brush assembly 54. The cleaning brush 542 is further configured to first move in a direction away from the center of the cleaning brush base 541 and then move in a direction toward the center of the cleaning brush base 541 when rotating from the third position to the second position. The third position is the position when the cleaning brush 542 hits the second position limiting portion 5652.

[0101] 28 and 29 , when the cleaning brush 542 rotates from the third position to the second position along the first direction M, the cleaning brush 542 first moves in a direction away from the center of the base 51, and then moves in a direction toward the center of the base 51. A first end 568 of the second position limiting portion 5652 is close to the cleaning component 59, a second end 569 of the second position limiting portion 5652 is away from the cleaning component 59, and the distance between the first end 568 of the second position limiting portion 5652 and the center of the cleaning brush base 541 is greater than the distance between the second end 569 of the second position limiting portion 5652 and the center of the cleaning brush base 541.

[0102] In the process of rotating the cleaning brush 542 from the third position to the second position, the cleaning brush 542 first rotates from a position where it engages with the second end 569 of the second position limiting portion 5652 to a position where it engages with the first end 568 of the second position limiting portion 5652, and the cleaning brush 542 moves in a direction away from the cleaning brush base 541. In the process of rotating the cleaning brush 542 toward the cleaning component 59, the cleaning brush 542 separates from the second position limiting portion 5652, and after the cleaning brush 542 engages with the cleaning component 59, it separates from the cleaning component 59, and the cleaning brush 542 moves from a position where it engages with the first end 566 of the first position limiting portion 5651 to a position where it engages with the second end 567 of the first position limiting portion 5651. In this movement process, the cleaning brush 542 moves in a direction approaching the center of the cleaning brush base 541. When the cleaning brush 542 engages with the second end 569 of the second position limiting portion 5652, the cleaning brush 542 changes its rotation direction by moving the cleaning brush base 541, and rotates toward the first position limiting portion 5651 (for example, the second direction N). This allows the cleaning brush 542 to rotate between the cleaning part 59 and the filter 40, and between the upper and lower sides of the cleaning part 59, thereby allowing the cleaning part 59 to clean the cleaning brush 542 and the second position limiting portion 5652 to restrict the rotation of the cleaning brush 542. Here, the second direction N is opposite to the first direction M. For example, the second direction N is a counterclockwise direction.

[0103] In some embodiments, as shown in Figs. 27 to 29, the surfaces of the first position limiting portion 5651 and the second position limiting portion 5652 facing the cleaning brush 542 may be flat or arcuate. That is, the surface of the first position limiting portion 5651 that engages with the cleaning brush 542 and the surface of the second position limiting portion 5652 that engages with the cleaning brush 542 are flat or arcuate, respectively. For example, the surface of the first position limiting portion 5651 facing the cleaning brush 542 is flat, and the surface of the second position limiting portion 5652 facing the cleaning brush 542 is an arcuate surface. When the cleaning brush 542 engages with the second end 569 of the second position limiting portion 5652, the second position limiting portion 5652 can restrict the cleaning brush 542 from continuing to rotate. Therefore, installing one side of the first position limiting part 5651 and the second position limiting part 5652 as a flat or arcuate surface is advantageous for the relative rotation between the cleaning brush 542 and the first position limiting part 565, making the rotation of the cleaning brush assembly 54 smoother and the deformation process of the elastic material 543 more gradual, thereby being advantageous for extending the service life of the cleaning brush assembly 54.

[0104] In some embodiments, as shown in Figures 27 to 29, along the height direction of the base 51, the first end 566 of the first position limiting portion 5651 is higher than the cleaning element 59 and the first end 568 of the second position limiting portion 5652 is lower than the cleaning element 59. In this case, the first position limiting part 5651, the cleaning part 59, and the second position limiting part 5652 are installed in order from top to bottom along the height direction of the housing 10, which is advantageous for changing the position of the cleaning brush 542 from the position where it engages with the filter 40 to the position where it engages with the cleaning part 59, and for changing the position of the cleaning brush 542 from the position where it engages with the cleaning part 59 to the position where it engages with the filter 40. The first position limiting part 5651 and the second position limiting part 5652 can delay the process of the elastic material 543 moving the cleaning brush 542 toward the center of the cleaning brush base 514 or the process of the elastic material 543 moving the cleaning brush 542 away from the center of the cleaning brush base 514, thereby extending the deformation process of the elastic material 543. This is advantageous for the first position limiting part 5651 and the second position limiting part 5652 to engage with the cleaning brush 542, and can reduce abnormal noise generated during the movement of the cleaning brush 542.

[0105] 31, the second position limiting portion 5652 includes a first sub-position limiting portion 5653 and a second sub-position limiting portion 5654. The first sub-position limiting portion 5653 is located at one end of the second position limiting portion 5652 close to the cleaning component 59, and the second sub-position limiting portion 5654 is located at the other end of the second position limiting portion 5652 away from the cleaning component 59. One end of the first sub-position limiting portion 5653 is connected to the inner wall of the cleaning cavity 56, and the second sub-position limiting portion 5654 is connected to the other end of the first sub-position limiting portion 5653, and the distance between the center of the cleaning brush base 541 and the first sub-position limiting portion 5653 is greater than the distance between the center of the cleaning brush base 541 and the second sub-position limiting portion 5654. Therefore, the distance between the cleaning brush 542 and the center of the cleaning brush base 514 when the cleaning brush 542 engages with the first sub-position limiting portion 5653 is greater than the distance between the cleaning brush 542 and the center of the cleaning brush base 514 when the cleaning brush 542 engages with the second sub-position limiting portion 5654.

[0106] Therefore, the compression stroke of the elastic material 543 when the cleaning brush 542 engages with the second sub-position limiting portion 5654 is larger than the compression stroke of the elastic material 543 when the cleaning brush 542 engages with the first sub-position limiting portion 5653. Therefore, when the cleaning brush 542 rotates from the first sub-position limiting portion 5653 to the second sub-position limiting portion 5654, the cleaning brush 542 moves toward the center of the cleaning brush base 514, and the second sub-position limiting portion 5654 can limit the cleaning brush 542. For example, the second sub-position limiting portion 5654 engaging with the cleaning brush 542 can prevent the cleaning brush 542 from continuing to rotate in a direction away from the first sub-position limiting portion 5653.

[0107] In some embodiments, as shown in FIGS. 30 and 31, the thickness L of the first position limiting part 565 along the length direction of the housing 10 is any value within a preset range, for example, the preset range is from 1 mm to 3 mm. In this case, L is 1 mm or more and 3 mm or less (1 mm≦L≦3 mm). For example, direction The thickness L along the length of the housing 10 of the first position limiting part 565 is 1 mm, 2 mm, or 3 mm. If the thickness L of the first position limiting part 565 along the length of the housing 10 is greater than 3 mm, the contact area between the first position limiting part 565 and the cleaning brush 542 increases, and as a result, during the rotation of the cleaning brush 542, the friction force generated between the cleaning brush 542 and the first position limiting part 565 is too large, which affects the rotation of the cleaning brush 542 and makes the bristles of the cleaning brush 542 prone to irreversible deformation, thereby wasting materials and increasing costs.

[0108] If the thickness L of the first position limiting part 565 along the length direction of the base 51 is less than 1 mm, the first position limiting part 565 is too thin, and as a result, when the cleaning brush 542 and the first position limiting part 565 are engaged during the rotation process of the cleaning brush 542, the first position limiting part 565 is easily broken, and if the first position limiting part 565 is too thin, the manufacturing difficulty increases and the cost increases. Therefore, setting the thickness L of the first position limiting part 565 along the length direction of the housing 10 within a preset range limits the position of the cleaning brush 542 when the cleaning brush 542 is engaged with the filter 40 and when the cleaning brush 542 is engaged with the cleaning part 59, delays the deformation process of the elastic material 543, reduces costs, improves the structural strength of the first position limiting part 565, and also extends the service life of the parts.

[0109] 30, the cleaning brush assembly 54 includes a plurality of first position limiting parts 565. The plurality of first position limiting parts 565 are disposed at intervals along the length direction of the housing 10, thereby reducing the force applied to each of the first position limiting parts 565. In addition, the plurality of first position limiting parts 565 are disposed at both ends of the length direction of the housing 10, respectively, which is advantageous in improving the support ability of the first position limiting parts 565 to the cleaning brush 542 and improving the overall structural strength of the base 51.

[0110] 20, 21, and 25, the dust collection box 55 includes a dust collection box main body 551 and an engagement hole 553. The engagement hole 553 is provided at one end of the dust collection box main body 551 along the length direction of the housing 10. The housing 10 further includes a positioning tool, which is provided on a side plate along the length direction of the housing 10. The dust collection box 55 and the housing 10 realize a detachable connection between the dust collection box 55 and the housing 10 by fitting and engaging the engagement hole 553 with the positioning tool.

[0111] 32, the dust collection box 55 further includes a baffle plate 552. The baffle plate 552 is provided on the front side of the dust collection box main body 551. One end of the baffle plate 552 is connected to the dust collection box main body 551, and the other end of the baffle plate 552 extends upward along the height direction of the housing 10 (i.e., the up-down direction shown in FIG. 19). The baffle plate 552 is configured to seal a gap between the front side of the dust collection box 55 and the front side of the base 51 when the dust collection box 55 is assembled to the base 51, thereby preventing foreign matter in the dust collection box 55 from spilling out through the gap.

[0112] 24, the cleaning brush assembly 54 further includes a mounting cavity 544. The side of the second mounting portion 5412 facing the cleaning brush 542 is open, and the first mounting portion 5411 is provided on the open side of the second mounting portion 5412. The first mounting portion 5411 and the second mounting portion 5412 define the mounting cavity 544. The elastic material 543 is disposed in the mounting cavity 544. Both ends of the elastic material 543 are connected to the first mounting portion 5411 and the second mounting portion 5412 so as to abut against each other, so that when the first mounting portion 5411 is pressed, the first mounting portion 5411 can move toward the second mounting portion 5412.

[0113] 24 , the cleaning brush assembly 54 further includes at least one positioning post 545. Any one of the at least one positioning post 545 is provided on either the first mounting portion 5411 or the second mounting portion 5412. The elastic material 543 is installed by fitting into any one of the positioning posts 545.

[0114] In some embodiments, as shown in FIG. 24 , the cleaning brush base 541 further includes at least one engagement groove 5414 and at least one locking member 5415. The at least one engagement groove 5414 is provided on at least one of both side walls of the first mounting portion 5411 along the width direction of the housing 10. The at least one locking member 5415 is provided on at least one of both side walls of the second mounting portion 5412 along the width direction of the housing 10. The locking member 5415 and the engagement groove 5414 are fitted and engaged with each other, thereby connecting the first mounting portion 5411 to the second mounting portion 5412. When the locking member 5415 is engaged in the engagement groove 5414, the locking member 5415 may move in the height direction of the housing 10 within the engagement groove 5414.

[0115] For example, when at least one first mounting portion 5411 includes a plurality of engagement grooves 5414, the plurality of engagement grooves 5414 are provided at intervals on both side walls of the first mounting portion 5411 along the width direction of the housing 10. Since the length of the engagement groove 5414 along the height direction of the housing 10 is greater than the length of the locking member 5415 along the height direction of the housing 10, the first mounting portion 5411 can move relative to the second mounting portion 5412 along the height direction of the housing 10.

[0116] It is understood that when the cleaning brush 542 comes into contact with the first reel 52, the first mounting portion 5411 moves toward the second mounting portion 5412. When the cleaning brush 542 is separated from the first reel 52, the first mounting portion 5411 moves in a direction away from the second mounting portion 5412. In this manner, the first mounting portion 5411 and the second mounting portion 5412 are engaged with each other by fitting the engagement groove 5414 into the locking member 5415. This is advantageous in improving the assembly efficiency of the first mounting portion 5411 and the second mounting portion 5412, simplifying the structure of the cleaning brush base 541, and improving the stability of the assembly of the first mounting portion 5411 and the second mounting portion 5412.

[0117] Furthermore, when the locking device 5415 is engaged in the engagement groove 5414, the locking device 5415 can move relative to the engagement groove 5414, which is advantageous for realizing movement of the first mounting portion 5411 relative to the second mounting portion 5412, and abutting the cleaning brush 542 against the first reel 52, thereby improving the cleaning efficiency of the cleaning brush 542 on the filter 40.

[0118] 23 to 25, the first mounting portion 5411 includes a first side portion 5416, a second side portion 5417, and a connecting portion 5413. Both ends of the connecting portion 5413 along the thickness direction of the housing 10 are connected to the upper sides of the first side portion 5416 and the second side portion 5417, respectively. The lower sides of the first side portion 5416 and the second side portion 5417 extend toward the second mounting portion 5412 along the height direction of the housing 10. The first side portion 5416, the second side portion 5417, and the connecting portion 5413 together configure the first mounting portion 5411.

[0119] The first side portion 5416 and the second side portion 5417 extend toward the second mounting portion 5412. One end of the elastic material 543 abuts against the connection portion 5413, and the other end of the elastic material 543 is fitted into a positioning post 545 provided on the second mounting portion 5412. The first side portion 5416 and the second side portion 5417 are connected to the second mounting portion 5412 by fitting and engaging the engagement groove 5414 with the locking tool 5415. When assembling the first mounting portion 5411 and the second mounting portion 5412, the first side portion 5416 and the second side portion 5417 are located outside both side walls of the second mounting portion 5412 along the thickness direction of the housing 10, and form a positional restriction for the second mounting portion 5412, preventing the elastic material 543 from slipping out.

[0120] The cleaning brush base 541 has a first side portion 5416, a second side portion 5417 and a connecting portion 5413 to form a first mounting portion 5411, which provides the first mounting portion 5411 with good structural strength, which is advantageous for mounting the first mounting portion 5411 and the cleaning brush 542, makes the mounting of the cleaning brush 542 more secure, and prevents the cleaning brush 542 from falling off the cleaning brush base 541.

[0121] 24 and 25, in some embodiments, the self-cleaning assembly 50 further includes a mounting groove 57. The mounting groove 57 is provided on a side of the connecting portion 5413 that is away from the second mounting portion 5412. The cleaning brush 542 is provided in the mounting groove 57. The bottom surface of the mounting groove 57 is flush with the surface of the cleaning brush 542 that is closer to the first reel 52, and is formed in an arc shape, so that when the cleaning brush 542 abuts against the first reel 52, the cleaning of the filter 40 can be achieved, and foreign matter generated by cleaning can fall from the surface of the cleaning brush 542 into the cleaning cavity 56.

[0122] 21, 22, and 25, the self-cleaning assembly 50 is connected to two transmission assemblies 70. The drive assembly 60 is connected to one of the two transmission assemblies 70. The two transmission assemblies 70 are respectively disposed at both ends of the self-cleaning assembly 50 along the length of the housing 10. The drive assembly 60 is disposed at one end of the housing 10 along the length of the housing 10.

[0123] The transmission assembly 70 includes a first gear 71, a second gear 72, and a third gear 73. The first gear 71 meshes with the second gear 72. In the two transmission assemblies 70, the two first gears 71 are provided on both ends of the second reel 53, the two second gears 72 are provided on both ends of the first reel 52, and the two third gears 73 are provided on both ends of the cleaning brush base 541.

[0124] The drive assembly 60 includes a first drive motor 61 and a second drive motor 62. The first drive motor 61 is connected to one of the first gear 71 and the second gear 72 and configured to drive either the first gear 71 or the second gear 72 to rotate. The second drive motor 62 is connected to the third gear 73 and configured to drive the third gear 73 to rotate.

[0125] Taking the connection between the first drive motor 61 and the second gear 72 as an example, when the self-cleaning assembly 50 executes the self-cleaning mode, the first drive motor 61 drives the second gear 72 to rotate along a first direction, causing the first reel 52 to rotate along the first direction. The second gear 72 further rotates the first gear 71 along a second direction, thereby causing the second reel 53 to rotate along the second direction. The second drive motor 62 drives the third gear 73 to rotate, thereby rotating the cleaning brush base 541.

[0126] The first direction is opposite to the second direction. When the second reel 53 rotates in the second direction to wind down the filter 40, the first reel 52 rotates in the first direction to wind up the filter 40.

[0127] In this way, under the action of the second reel 53 and the first reel 52, the filter 40 stretched between the second reel 53 and the first reel 52 moves along a preset trajectory, and relative motion occurs between the cleaning brush 542 and the filter 40, thereby realizing cleaning of the filter 40 by the cleaning brush 542.

[0128] It is understood that both ends of the second reel 53 are respectively connected to the first gear 71, and the second reel 53 realizes a rotational connection with the base 51 through the first gear 71. Both ends of the first reel 52 are respectively connected to the second gear 72, and the first reel 52 realizes a rotational connection with the base 51 through the second gear 72. Both ends of the cleaning brush base 541 are respectively connected to the third gear 73, and the cleaning brush base 541 realizes a rotational connection with the base 51 through the third gear 73.

[0129] 1. Self-cleaning assembly For example, the self-cleaning assembly 50 is connected to two transmission assemblies 70, and the two transmission assemblies 70 are respectively installed at both ends of the self-cleaning assembly 50. The drive assembly 60 is connected to the transmission assembly 70 close to the side wall of the housing 10. The drive assembly 60 drives the transmission assembly 70 to rotate, thereby rotating the self-cleaning assembly 50.

[0130] Since a transmission assembly 70 is provided at both ends of each of the two self-cleaning assemblies 50, there is no need to distinguish between the left and right sides when installing the self-cleaning assemblies 50 to the housing 10, which is advantageous in improving the installation efficiency of the self-cleaning assemblies 50.

[0131] 33, the drive assembly 60 further includes a housing portion 63 and a folding portion 64. The housing portion 63 is connected to the housing 10. The folding portion 64 is provided on a side of the housing portion 63 along the width direction of the housing 10, and a free end of the folding portion 64 extends toward the base 51 along the length direction of the housing 10. The folding portion 64, the housing portion 63, and the base 51 define an accommodation space, and the first drive motor 61 and the second drive motor 62 are provided in the accommodation space.

[0132] In some embodiments, as shown in FIG. 25 and FIG. 33, the base 51 further includes two end covers 514 and a connecting plate 516. The two end covers 514 are provided at both ends of the base 51 along the length direction of the housing 10. The connecting plate 516 connects the two end covers 514 and is located on the side of the two end covers that is away from the back plate 13. The connecting plate 516 includes a gripping portion 5161, which is provided on the top of the connecting plate 516. As shown in FIG. 27, the gripping portion 5161 includes a plurality of grooves, which are recessed toward the dust collecting box 55 along the height direction of the housing 10. The plurality of grooves are provided on the connecting plate 516 continuously along the length direction of the housing 10.

[0133] 32 and 33, the base 51 further includes a base front cover 513. The base front cover 513 is provided on the front side of the housing 10 and is located below the connecting plate 516. The lower end of the base front cover 513 is detachably connected to the base main body 511A. The upper end of the base front cover 513 is rotatably connected to the base main body 511A.

[0134] The base front cover 513 is configured to open and close the front side of the cleaning cavity 56. In this manner, it is advantageous to realize cleaning for the cleaning brush 542 in the cleaning cavity 56.

[0135] In some embodiments, as shown in FIG. 32, the base front cover 513 includes a rotating shaft 5131. The rotating shaft 5131 is provided on both ends of the base front cover 513 along the length direction of the housing 10. The base main body 511A further includes a rotating shaft hole, which is provided on the base main body 511A. The rotating shaft 5131 is fitted and engaged with the rotating shaft hole, thereby realizing a rotational connection between the base front cover 513 and the base main body 511A. In this way, when the base front cover 513 is opened, the lower side of the base front cover 513 is inverted upward, thereby realizing the opening of the front side of the cleaning cavity 56.

[0136] In some embodiments, as shown in FIGS. 24 and 25 , the cleaning brush assembly 54 further includes at least one second position limiting part 546. The at least one second position limiting part 546 is provided at one end of the cleaning brush base 541 along the length direction of the housing 10. For example, the at least one second position limiting part 546 includes one second position limiting part 546, and the one second position limiting part 546 is provided at one end of the second mounting part 5412 along the length direction of the housing 10. For example, the at least one second position limiting part 546 includes two second position limiting parts 546, and the two second position limiting parts 546 are provided at both ends of the second mounting part 5412 along the length direction of the housing 10.

[0137] 34, the cleaning brush assembly 54 further includes a stopper portion 547. The stopper portion 547 is provided on an inner wall of the cleaning cavity 56. The second position limiting part 546 is configured to abut against the stopper portion 547 to limit the rotation angle of the cleaning brush assembly 54.

[0138] By configuring the second position limiting component 546 to rotate further to the first position, the first position limiting protrusion 5461 abuts against the stopper portion 547, and the cleaning brush 542 does not contact the first reel 52. Also, by configuring the second position limiting component 546 to rotate further to the second position, the second position limiting protrusion 5462 abuts against the stopper portion 547, and the cleaning brush 542 abuts against the first reel 52.

[0139] 34 , the stopper portion 547 includes a first stopper surface 5471 and a second stopper surface 5472. When the second position limiting component 546 rotates to the first position, the first position limiting protrusion 5461 abuts against the first stopper surface 5471, and the cleaning brush 542 does not contact the first reel 52. When the second position limiting component 546 rotates to the second position, the second position limiting protrusion 5462 abuts against the second stopper surface 5472, and the cleaning brush 542 abuts against the first reel 52 to brush off foreign matter on the filter 40.

[0140] One end of the first stopper surface 5471 is connected to one end of the second stopper surface 5472, and the first stopper surface 5471 is located below the second stopper surface 5472. The other end of the first stopper surface 5471 extends obliquely downward in a direction approaching the back plate 13 along the thickness direction of the housing 10. The other end of the second stopper surface 5472 extends obliquely upward in a direction approaching the back plate 13 along the thickness direction of the housing 10.

[0141] As the cleaning brush base 541 rotates counterclockwise and the second position limiting part 546 rotates from the first position to the second position, the first position limiting protrusion 5461 changes from a state of abutting against the first stopper surface 5471 to a state of being released from the first position, and then the second position limiting protrusion 5462 abuts against the second stopper surface 5472, causing the cleaning brush 542 to abut against the first reel 52 and clean the filter 40.

[0142] In this way, providing the stopper portion 547 with the first stopper surface 5471 and the second stopper surface 5472 is advantageous for the abutment between the first position limiting protrusion 5461 and the second position limiting protrusion 5462 and the stopper portion 547, improves the stability and reliability of the abutment between the second position limiting part 546 and the stopper portion 547, and reduces the rotation error of the cleaning brush assembly 54.

[0143] In some embodiments, the cleaning component 59 is provided on a side wall of the cleaning cavity 56 opposite the stopper portion 547. The cleaning component 59 is configured to clean foreign matter on the cleaning brush 542 when the second position limiting component 546 rotates back and forth between the first position and the second position.

[0144] In some embodiments, as shown in FIG. 23 and FIG. 33, the base front cover 513 further includes a deflection section 5132 and an extension section 5133. The deflection section 5132 is located between the two end covers 514, and the deflection section 5132 protrudes in a direction away from the central axis of the cleaning brush 542. The rotating shaft 5131 is connected to the side of the deflection section 5132 that is away from the cleaning brush 542. The extension section 5133 extends along the height direction of the housing 10. An upper end of the extension section 5133 is connected to a lower end of the deflection section 5132, and the lower end of the extension section 5133 is fitted and engaged with the dust collection box 55.

[0145] In some embodiments, as shown in Fig. 23, the base 51 further includes a base rear cover 515. The base rear cover 515 is disposed between the two end covers 514, and the base rear cover 515 is disposed at the rear side of the cleaning cavity 56 along the thickness direction of the housing 10. The base rear cover 515 faces the base front cover 513, and the base rear cover 515 is rotatably connected to the base main body 511A. The base rear cover 515 includes a connecting groove, which is provided on the base rear cover 515. The side of the connecting groove facing the cleaning brush assembly 54 is open. A sealant is provided in the connecting groove.

[0146] When the base rear lid 515 is closed to close the rear side of the cleaning cavity 56, the sealing material is configured to seal the gap between the base rear lid 515 and the first reel 52. When the base rear lid 515 is opened to open the rear side of the cleaning cavity 56, the sealing material and the first reel 52 are separated from each other.

[0147] The rear side of the sealing material is located within the connecting groove, and the front side of the sealing material extends from the connecting groove to abut against the first reel 52. For example, the sealing material is a sponge.

[0148] In this way, by providing the connecting groove in the base rear cover 515 and providing the sealing material in the connecting groove, the first opening 563 of the cleaning cavity 56 can be abutted against the first reel 52 via the sealing material to form a seal for the first opening 563, which is advantageous in preventing dust in the cleaning cavity 56 from flowing into the fan assembly 30 or the indoor heat exchanger 20, and extends the service life of the air conditioner indoor unit 100A.

[0149] 23, the width of the second opening 564 is inclined from top to bottom along the height direction of the housing 10, i.e., the cross-sectional area of ​​the second opening 564 decreases from top to bottom along the height direction of the housing 10. The second opening 564 is located at the bottom of the cleaning cavity 56. The opening of the second opening 564 at an end closer to the cleaning cavity 56 is larger, and the opening of the second opening 564 at an end closer to the dust collection box 55 is smaller.

[0150] 23, the cleaning cavity 56 further includes a first extension section 561 and a second extension section 562. The first extension section 561 and the second extension section 562 are provided at a lower portion of the cleaning cavity 56. The first extension section 561 is connected to a front wall of the cleaning cavity 56, and the second extension section 562 is connected to a rear wall of the cleaning cavity 56, and a second opening 564 is defined between the first extension section 561 and the second extension section 564. The distance between the first extension section 561 and the second extension section 562 decreases from top to bottom along the height direction of the housing 10.

[0151] The other ends of the first extension section 561 and the second extension section 562 are flush with the bottom of the cleaning cavity 56 to prevent the first extension section 561 and the second extension section 562 from interfering with the installation of the dust collection box 55.

[0152] The distance between the first extension section 561 and the second extension section 562 decreasing from top to bottom along the height direction of the housing 10 is advantageous for foreign matter brushed off by the cleaning brush 542 to fall into the dust collection box 55, reducing the possibility that the foreign matter will accumulate in the cleaning cavity 56 or the second opening 564, and reducing the risk that the foreign matter will fall into areas other than the dust collection box 55. Furthermore, the entire first extension section 561 and the second extension section 562 are located below the cleaning brush 542, which is advantageous for guiding the foreign matter cleaned off from the filter 40 to fall into the dust collection box 55, and avoiding the foreign matter from accumulating in the cleaning cavity 56.

[0153] 23 and 25, the self-cleaning assembly 50 further includes an insert 58. The insert 58 is disposed on the connecting plate 516 and may move along the length of the housing 10 relative to the connecting plate 516.

[0154] Providing the insert 58 on the self-cleaning assembly 50 is advantageous for attaching and detaching the self-cleaning assembly 50, and improves the efficiency of attaching and detaching the self-cleaning assembly 50.

[0155] 35, the fan assembly 30 includes an indoor fan 31 and an indoor fan motor 32. The indoor fan 31 is connected to the indoor fan motor 32. The indoor fan motor 32 is configured to drive the rotation of the indoor fan 31.

[0156] In some embodiments, as shown in Fig. 35, the air conditioner indoor unit 100A further includes a fresh air assembly 90. The fresh air assembly 90 includes a fresh air fan 91 and a fresh air spiral casing 92. The fresh air spiral casing 92 is installed inside the housing 10. The fresh air spiral casing 92 includes a fresh air inlet 921 and a fresh air outlet 922. The fresh air inlet 921 is provided at one end of the fresh air spiral casing 92, and the fresh air outlet 922 is provided at the other end of the spiral casing. The fresh air fan 91 is installed inside the fresh air spiral casing 92, and is configured to suck in and pump out outdoor air.

[0157] In some embodiments, as shown in Fig. 35, the indoor heat exchanger 20 includes a heat exchange duct 21. The heat exchange duct 21 is provided in the indoor heat exchanger 20 and communicates with the air outlet.

[0158] 36, the air conditioner indoor unit 100A further includes an indoor fan motor drive assembly 81, a control assembly 82, a memory assembly 83, and a timer 84. The indoor fan motor drive assembly 81 is configured to control starting and stopping of the indoor fan motor 32, and to collect a current current value In when the indoor fan motor 32 is operating at a current operating rotation speed Rn. The memory assembly 83 is configured to store a target current value Im. The target current value Im is a corresponding current value when there is no foreign matter in the filter 40 and the indoor fan motor 32 is operating at the current operating rotation speed Rn.

[0159] The timer 84 is configured to measure time. The control assembly 82 is connected to the indoor fan motor drive assembly 81, the self-cleaning assembly 50, the memory assembly 83, and the timer 84, thereby controlling the indoor fan motor drive assembly 81, the self-cleaning assembly 50, and the timer 84, respectively.

[0160] In some embodiments, as shown in FIG. 37, the control assembly 82 is configured to perform steps S101 through S105.

[0161] In step S101, a signal collected by the indoor fan motor drive assembly 81 and representing the current current value In of the indoor fan motor 32 when it is operating at the current operating rotation speed Rn is received.

[0162] In step S102, it is determined whether the current current value In is smaller than the difference between the target current value Im and the set current value I0 when there is no foreign matter in the filter 40 and the indoor fan motor 32 is operating at the current operating rotation speed Rn. If the answer is "YES", step S103 is executed, and if the answer is "NO", the flow returns to step S101 and is executed again.

[0163] In some embodiments, when the control assembly 82 receives a signal collected by the indoor fan motor drive assembly 81 representing a current value In of a current when the indoor fan motor 32 is operating at a current operating rotation speed Rn, the control assembly 82 determines whether the current value In of a current when the indoor fan motor 32 is operating at the current operating rotation speed Rn is greater than or less than a target current value Im when the indoor fan motor 32 has no foreign matter in the filter 40 and is operating at the current operating rotation speed Rn.

[0164] If the current current value In when the indoor fan motor 32 is operating at the current operating rotation speed Rn is smaller than the difference between the target current value Im when the indoor fan motor 32 has no foreign matter on the filter 40 and is operating at the current operating rotation speed Rn, this indicates that a relatively large amount of foreign matter has adhered to the filter 40 and that the filter 40 needs to be cleaned.

[0165] If the current current value In when the indoor fan motor 32 is operating at the current operating rotation speed Rn is equal to or greater than the target current value Im when the indoor fan motor 32 has no foreign matter on the filter 40 and is operating at the current operating rotation speed Rn, this indicates that no foreign matter is attached to the filter 40.

[0166] It should be noted that the set current value I0 is a value preset in the control assembly 82. The set current value I0 may be any value between 1 mA and 3 mA, for example, 1 mA, 2 mA, or 3 mA. The set current value I0 may be adjusted according to actual needs, and the present disclosure is not limited thereto.

[0167] In step S103, the timer 84 is controlled to measure time to obtain the duration Tn, and it is determined whether the duration Tn is greater than or equal to the set time threshold T0. If the answer is "YES", step S104 is executed, and if the answer is "NO", step S105 is executed.

[0168] In some embodiments, if the control assembly 82 determines that the current current value In when the indoor fan motor 32 is operating at the current operating rotation speed Rn is less than the difference between the target current value Im and the set current value I0 when the indoor fan motor 32 has no foreign matter in the filter 40 and is operating at the current operating rotation speed Rn, the control assembly 82 controls the timer 84 to time to obtain a duration Tn, and determines whether the duration Tn is greater than or equal to the set time threshold T0.

[0169] If the current current value In when the indoor fan motor 32 is operating at the current operating rotation speed Rn is smaller than the difference between the target current value Im and the set current value I0 when there is no foreign matter in the filter 40 and the indoor fan motor 32 is operating at the current operating rotation speed Rn, and if the duration Tn in this state is equal to or longer than the set time threshold T0, this indicates that the indoor fan motor 32 has been in an operating state in which the current current value In is lower than the difference between the target current value Im and the set current value I0 for a long period of time, i.e., the air conditioner indoor unit 100A has been operating for a long period of time with a large amount of foreign matter adhering to the filter 40. Therefore, it is necessary to clean the filter 40 in order to ensure the cooling or heating effect of the air conditioner indoor unit 100A.

[0170] It should be noted that the set time threshold T0 is a value preset in the control assembly 82. The set time threshold T0 may be adjusted according to actual needs, and the present disclosure is not limited thereto. For example, the set time threshold T0 includes a first set time threshold T1, a second set time threshold T2, and a third set time threshold T3. The first set time threshold T1 is greater than the second set time threshold T2, and the second set time threshold T2 is greater than the third set time threshold T3. For example, the first set time threshold T1 is 15 min, the second set time threshold T2 is 10 min, and the third set time threshold T3 is 5 min.

[0171] In step S104, the duration Tn is cleared to zero, and the self-cleaning assembly 50 is controlled to clean the filter 40.

[0172] In step S105, the duration Tn is cleared to zero, and the process returns to step S102 and is executed again.

[0173] In some embodiments, when the control assembly 82 determines that the current current value In when the indoor fan motor 32 is operating at the current operating rotation speed Rn is less than the difference between the target current value Im and the set current value I0 when the indoor fan motor 32 is operating at the current operating rotation speed Rn without any foreign object in the filter 40, and the duration Tn is greater than or equal to the set time threshold T0, the control assembly 82 determines that the filter 40 needs to be cleaned, clears the duration Tn to zero, and controls the self-cleaning assembly 50 to clean the filter 40.

[0174] If the control assembly 82 determines that the current current value In when the indoor fan motor 32 is operating at the current operating rotation speed Rn is smaller than the difference between the target current value Im and the set current value I0 when the indoor fan motor 32 has no foreign matter in the filter 40 and is operating at the current operating rotation speed Rn, and that the duration Tn is smaller than the set time threshold T0, the control assembly 82 clears the duration Tn to zero and controls the air conditioner indoor unit 100A to continue operation, and then re-determines the magnitude relationship between the current current value In when the indoor fan motor 32 is operating at the current operating rotation speed Rn and the target current value Im when the indoor fan motor 32 has no foreign matter in the filter 40 and is operating at the current operating rotation speed Rn.

[0175] In some embodiments, the air conditioner indoor unit 100A further includes a cleaning indicator lamp, which is provided on the housing 10 and configured to notify the user whether or not to clean the filter 40.

[0176] In some embodiments, as shown in FIG. 38, prior to step S104, control assembly 82 is further configured to perform steps S201 through S203.

[0177] In step S201, the current local time Ti is obtained, and it is determined whether the current local time Ti is within a set time range Ty. If the answer is "YES", step S202 is executed, and if the answer is "NO", step S203 is executed.

[0178] In step S202, the cleaning instruction lamp is controlled to be turned on.

[0179] In step S203, the cleaning instruction lamp is controlled to be turned off.

[0180] In some embodiments, when the current current value In when the indoor fan motor 32 is operating at the current operating rotation speed Rn is smaller than the difference between the target current value Im and the set current value I0 when the indoor fan motor 32 is operating at the current operating rotation speed Rn without any foreign object on the filter 40, and the duration Tn is greater than the set time threshold T0, the control assembly 82 obtains the current time Ti at the installation location of the air conditioner indoor unit 100A and determines whether the local current time Ti is greater than the set time range Ty. When the local current time Ti is within the set time range Ty, the control assembly 82 controls the lighting of the cleaning instruction lamp to notify the user to clean the filter 40. When the local current time Ti is outside the set time range Ty, the control assembly 82 controls the lighting of the cleaning instruction lamp.

[0181] The set time range Ty is a value preset in the control assembly 82. The set time range Ty may be adjusted according to actual needs, and the present disclosure does not limit this. For example, the set time range Ty is 06:00 to 20:00.

[0182] When the control assembly 82 determines that cleaning of the filter 40 is required, the control assembly 82 may obtain the current time Ti at the installation location of the air conditioner indoor unit 100A via wireless communication technology. When the installation location of the air conditioner indoor unit 100A is Beijing and the current time Ti is daytime, i.e., between 06:00 and 20:00, the control assembly 82 controls the lighting of the cleaning indication lamp to notify the user that cleaning of the filter 40 is required. In this case, the user can manually select whether or not to activate the self-cleaning function of the air conditioner indoor unit 100A.

[0183] If the installation location of the air conditioner indoor unit 100A is Beijing and the current time Ti is nighttime, i.e., between 20:00 and 06:00, the control assembly 82 controls the cleaning indicator lamp to be turned off and controls the air conditioner indoor unit 100A to continue operating.

[0184] In some embodiments, when the air conditioner indoor unit 100A is applied to an air conditioner, the air conditioner includes a compressor. The air conditioner indoor unit 100A further includes an air guide plate, which is provided at the air outlet to open and close the air outlet. For example, when the air conditioner indoor unit 100A is operating, the air guide plate opens to expose the air outlet, and the air that has been heat exchanged by the indoor heat exchanger 20 flows into the room from the air outlet.

[0185] The air guide plate is rotatable with respect to the housing 10 in order to adjust the direction of the air flowing out from the air outlet, thereby allowing the air to flow to a plurality of positions in the room.

[0186] In some embodiments, as shown in FIG. 39, before step S104, control assembly 82 is further configured to perform step S301.

[0187] In step S301, the compressor is controlled to stop operating, the fan assembly 30 is controlled to stop operating, and the air guide plate is controlled to close.

[0188] For example, before control assembly 82 controls self-cleaning assembly 50 to clean filter 40, control assembly 82 controls the compressor to stop operating, controls fan assembly 30 to stop operating, and controls the baffle to close.

[0189] In some embodiments, the control assembly 82 is further configured to control the rotation of the first drive motor 61 and the second drive motor 62 to control the self-cleaning assembly 50 to clean the filter 40. For example, the control assembly 82 controls the rotation of the second drive motor 62 to rotate the cleaning brush 542, thereby cleaning foreign matter on the filter 40. The control assembly 82 controls the first drive motor 61 to rotate along the first direction, thereby rotating the second reel 53 along the first direction, thereby winding up the filter 210 on the second reel 53.

[0190] Furthermore, when the self-cleaning assembly 50 cleans the filter 40, there is no need for the user to manually change the direction of rotation of the first drive motor 61 through the control of the control assembly 82, which is advantageous for automating the self-cleaning assembly 50.

[0191] 40, when the control assembly 82 controls the self-cleaning assembly 50 to clean the filter 40, the control assembly 82 is further configured to perform steps S401 to S408. That is, step S104 includes steps S401 to S409.

[0192] In step S401, the rotation of the second drive motor 62 is controlled, and the first pulse number N1 of the second drive motor 62 is counted.

[0193] In some embodiments, in the process of controlling the rotation of the second drive motor 62, the control assembly 82 counts the first pulse number N1 of the second drive motor 62. That is, the control assembly 82 controls the second drive motor 62 to start rotating in order to clean foreign matter on the filter 40, and calculates the first pulse number N1 of the second drive motor 62 to obtain the number of times the cleaning brush 542 has cleaned the filter 40.

[0194] In step S402, it is determined whether the first pulse number N1 is equal to or greater than the first set pulse number N10. If "YES", step S403 is executed, and if "NO", the process returns to step S401 and is executed.

[0195] In step S403, the first drive motor 61 is controlled to rotate in the first direction, and a second pulse number N21 for which the first drive motor 61 rotates in the first direction is counted.

[0196] In some embodiments, the control assembly 82 counts the first pulse number N1 and determines whether the first pulse number N1 is greater than or equal to the first set pulse number N10. If the first pulse number N1 is greater than or equal to the first set pulse number N10, the control assembly 82 controls the first drive motor 61 to rotate along the first direction and counts a second pulse number N21 for which the first drive motor 61 rotates along the first direction.

[0197] It should be noted that the first set pulse number N10 is a value preset in the control assembly 82 and may be adjusted according to actual needs, and the present disclosure is not limited thereto. For example, the first set pulse number N10 is any value from 8 to 12, for example, the first set pulse number N10 is 8, 10, or 12.

[0198] In step S404, it is determined whether the second pulse number N21 is equal to or greater than the second set pulse number N20. If "YES", step S405 is executed, and if "NO", the process returns to step S403 and is executed again.

[0199] In step S405, the first driving motor 61 is controlled to rotate in the second direction, and a third pulse number N31 for which the first driving motor 61 rotates in the second direction is counted.

[0200] In step S406, it is determined whether the third pulse number N31 is equal to or greater than the second set pulse number N20. If "YES", step S407 is executed, and if "NO", the process returns to step S405 and is executed again.

[0201] It should be noted that the second set pulse number N20 is a value preset in the control assembly 82 and may be adjusted according to actual needs, and the present disclosure is not limited thereto. For example, the second set pulse number N20 is any value between 1100 and 1300, for example, the second set pulse number N20 is 1100, 1200, or 1300.

[0202] In some embodiments, when the self-cleaning assembly 50 cleans the filter 40, the control assembly 82 controls the rotation of the second drive motor 62 at 200 pulses per second and the control assembly 82 controls the rotation of the first drive motor 61 at 110 pulses per second. That is, the number of pulses controlling the rotation of the second drive motor 62 is greater than the number of pulses controlling the rotation of the first drive motor 61, that is, the rotational speed of the cleaning brush 542 is greater than the rotational speed of the second reel 53.

[0203] In step S407, the first pulse number N1, the second pulse number N21, and the third pulse number N31 are cleared to zero, and the number of reciprocating movements Nt of the filter 40 along a preset trajectory is calculated.

[0204] In step S408, it is determined whether the number of reciprocating movements Nt is equal to or greater than the set number of reciprocating movements Ns. If "YES", step S409 is executed, and if "NO", the process returns to step S401 and is executed again.

[0205] In step S409, the self-cleaning assembly 50 is controlled to stop cleaning the filter 40.

[0206] In some embodiments, when the third pulse number N22 is equal to or greater than the second set pulse number N20, the first pulse number N1, the second pulse number N21, and the third pulse number N22 are cleared to zero. The control assembly 82 controls the rotation of the second drive motor 62, controls the first drive motor 61 to alternately rotate along the first direction and along the second direction, and calculates the number of reciprocating movements Nt of the filter 40 wound up and down on the second reel 53.

[0207] When the reciprocating motion of the filter 40 reaches the set number Ns, the filter 40 undergoes multiple cleanings by the cleaning brush 542 and becomes relatively clean. That is, when the reciprocating motion number Nt is equal to or greater than the set number Ns, it indicates that the self-cleaning assembly 50 has completed cleaning the filter 40.

[0208] It should be noted that the set number Ns is a value preset in the control assembly 82, and the set number Ns may be adjusted according to actual needs, and the present disclosure does not limit this. For example, the set number Ns is any value from 8 to 12, for example, the set number Ns is 8, 10, or 12.

[0209] It will be appreciated by those skilled in the art that the scope of the disclosure of the present invention is not limited to the specific embodiments described above, and that modifications and substitutions can be made to the specific elements of the embodiments without departing from the spirit of the present application. The scope of the disclosure is limited by the claims.

Claims

1. An air conditioner indoor unit, A housing having an inlet and an outlet; A filter that covers the air inlet and is configured to filter foreign matter in the indoor air; a self-cleaning assembly configured to remove foreign matter on the filter; the self-cleaning assembly includes a base, a first reel, a second reel, a cleaning brush assembly, a cleaning component, and at least one position limiting component; The base is connected to the housing, the first reel is rotatably connected to the base and is connected to one end of the filter; the second reel is rotatably connected to the base and to the other end of the filter; The cleaning brush assembly is installed in the base and is located on a side of the second reel away from the filter, and the cleaning brush assembly includes: a cleaning brush base rotatably connected to the base; a cleaning brush that is movably installed on the cleaning brush base and abuts against a portion of the filter, the cleaning brush being configured to clean foreign matter on the filter during a process in which the filter is wound onto the first reel or the second reel or during a process in which the filter is released from the first reel or the second reel; an elastic material provided between the cleaning brush base and the cleaning brush; the cleaning part is provided on an inner wall of the base and is located on one side of the cleaning brush assembly, and the cleaning part is configured to clean foreign matter on the cleaning brush during a process in which the cleaning brush base rotates; the at least one position limiting part is provided on an inner wall of the base and is located at least one of a side closer to the filter and a side farther from the filter of the cleaning part, and the position limiting part is configured to bump into the cleaning brush and slowly elastically deform the elastic material when the elastic material tends to be compressed or stretched during the process of rotating the cleaning brush base. Air conditioner indoor unit.

2. the base defines a cleaning cavity; The cleaning cavity comprises: a first opening, the cleaning cavity being open on a side closer to the filter, and the first opening being formed; a second opening, the side of the cleaning cavity away from the filter being open, and the second opening being formed; The self-cleaning assembly further includes a dust collection box, the dust collection box being disposed at the second opening and configured to collect foreign matter within the cleaning cavity. The air conditioner indoor unit according to claim 1.

3. The position limiting component includes at least one of a first position limiting portion or a second position limiting portion, the first position limiting portion is located on a side of the cleaning component closer to the filter, a first end of the first position limiting portion is adjacent to the cleaning component, and a second end of the first position limiting portion extends toward the first opening; the second position limiting portion is located on a side of the cleaning component away from the filter, a first end of the second position limiting portion is adjacent to the cleaning component, and a second end of the second position limiting portion extends toward the second opening. The air conditioner indoor unit according to claim 2.

4. a width of the first position limiting portion in a thickness direction of the air conditioner indoor unit decreases in a direction from a first end of the first position limiting portion to a second end of the first position limiting portion, The cleaning brush is further configured to move in a direction away from a center of the cleaning brush base when rotating from a second position to a first position, the first position being a position when the cleaning brush abuts against the filter of the second reel, and the second position being a position when the cleaning brush abuts against the first position limiting portion. The air conditioner indoor unit according to claim 3.

5. a width of the second position limiting component in a thickness direction of the air conditioner indoor unit decreases in a direction from the second end of the second position limiting portion to the first end of the second position limiting portion, The cleaning brush is further configured to first move in a direction away from the center of the cleaning brush base and then move in a direction toward the center of the cleaning brush base when rotating from the third position to the second position, the second position being a position when the cleaning brush abuts against the first position limiting portion, and the third position being a position when the cleaning brush abuts against the second position limiting portion. The air conditioner indoor unit according to claim 3 or 4.

6. The surface of the first position limiting portion that abuts against the cleaning brush is one of a flat surface and a circular arc surface, and the surface of the second position limiting portion that abuts against the cleaning brush is one of a flat surface and a circular arc surface. The air conditioner indoor unit according to any one of claims 3 to 5.

7. The second position limiting portion is a first sub-position limiting portion having one end connected to an inner wall of the cleaning cavity; a second sub-position limiting portion connected to the other end of the first sub-position limiting portion, wherein a distance between a center of the cleaning brush base and the first sub-position limiting portion is greater than a distance between a center of the cleaning brush base and the second sub-position limiting portion; The air conditioner indoor unit according to any one of claims 3 to 6.

8. Along a height direction of the base, a second end of the second position limiting portion is lower than the cleaning brush assembly. The air conditioner indoor unit according to any one of claims 3 to 7.

9. The thickness of the position limiting component in the longitudinal direction of the base is any value within a preset range. The air conditioner indoor unit according to any one of claims 1 to 8.

10. The at least one position limiting component includes a plurality of position limiting components, the plurality of position limiting components being spaced apart along a longitudinal direction of the base and positioned at both ends of the base in the longitudinal direction, respectively. The air conditioner indoor unit according to any one of claims 1 to 9.

11. The cleaning brush base comprises: A first attachment portion; a second mounting portion, the first mounting portion including a second mounting portion provided on the second mounting portion; a first end of the elastic material abuts against the first mounting portion, a second end of the elastic material abuts against the second mounting portion, and the cleaning brush is provided on a side of the first mounting portion away from the second mounting portion. The air conditioner indoor unit according to any one of claims 1 to 10.

12. The cleaning brush assembly further includes a mounting cavity, a side of the second mounting portion facing the cleaning brush is open, the first mounting portion is provided on the open side of the second mounting portion, the first mounting portion defines the mounting cavity together with the second mounting portion, and the elastic material is installed in the mounting cavity. The air conditioner indoor unit according to claim 11.

13. The cleaning brush base comprises: At least one engagement groove; at least one locking member provided on at least one of both side walls of the second mounting portion along a width direction of the housing, the locking member corresponding to the at least one engagement groove; the at least one locking member and the at least one engagement groove are engaged with each other, thereby connecting the first attachment portion and the second attachment portion to be movable in a height direction of the housing. The air conditioner indoor unit according to claim 11 or 12.

14. the at least one engagement groove includes a plurality of engagement grooves, the at least one fastener includes a plurality of fasteners, the plurality of fasteners correspond to the plurality of engagement grooves, and are provided on both side walls of the second attachment portion along a width direction of the housing, the plurality of fasteners are engaged with the plurality of engagement grooves, respectively, thereby connecting the first attachment portion and the second attachment portion to be movable in a height direction of the housing. The air conditioner indoor unit according to claim 13.

15. the elastic material includes a spring, and the cleaning brush assembly further includes a positioning post provided on one of the first mounting portion and the second mounting portion, the spring being fitted into the positioning post. The air conditioner indoor unit according to any one of claims 11 to 14.

16. The air conditioner indoor unit includes: an indoor heat exchanger that is installed in the housing and configured to exchange heat with indoor air entering through the air inlet; a fan assembly that is installed on a side away from the air inlet of the indoor heat exchanger and is configured to cause indoor air to flow in through the air inlet, exchange heat with the indoor heat exchanger, and then blow the air out through the air outlet; a drive assembly mounted on the housing; and at least one transmission assembly installed in the housing, the transmission assembly being configured to move the self-cleaning assembly under the driving of the drive assembly and to cause the self-cleaning assembly to clean foreign matter attached to the filter. The air conditioner indoor unit according to any one of claims 1 to 15.

17. the drive assembly includes a first drive motor and a second drive motor; The transmission assembly includes: A first gear provided at one end of the first reel along the length direction of the housing; a second gear provided at one end of the second reel along a length direction of the housing, the first gear meshing with the second gear; a third gear provided at one end of the housing of the cleaning brush base in a longitudinal direction thereof, the second driving motor being connected to the third gear; the first drive motor is connected to one of the first gear or the second gear and configured to drive rotation of either the first gear or the second gear, and the second drive motor is connected to the third gear and configured to drive rotation of the third gear; The air conditioner indoor unit according to claim 16.

18. the at least one transmission assembly includes two transmission assemblies, the two transmission assemblies being provided at opposite ends along a length of the housing of the self-cleaning assembly, respectively; The air conditioner indoor unit according to claim 17.

19. the fan assembly includes an indoor fan and an indoor fan motor; The air conditioner indoor unit includes: an indoor fan motor drive assembly configured to control starting and stopping of the indoor fan motor and to collect a current current value when operating at a current operating rotational speed of the indoor fan motor; a parameter storage assembly configured to store a target current value when the indoor fan motor is operating at the current operating rotational speed without a foreign object in the filter; A timer configured to time; and a control assembly, the control assembly comprising: receiving a signal representative of the present current value of the indoor fan motor collected by the indoor fan motor drive assembly; controlling the timer to time if it is determined that the current current value is less than the difference between the target current value and a set current value; When it is determined that the time count of the timer is equal to or greater than a set time threshold, the timer is controlled to reset the time count of the timer to zero, and the self-cleaning assembly is controlled to clean the filter. The air conditioner indoor unit according to any one of claims 16 to 18.

20. the drive assembly includes a first drive motor and a second drive motor; The control assembly further comprises: When the control assembly controls the self-cleaning assembly to clean the filter, Controlling the rotation of the second driving motor and counting a first pulse number of the second driving motor; If it is determined that the first pulse number is equal to or greater than a first set pulse number, controlling the first driving motor to rotate along a first direction, and counting a second pulse number for which the first driving motor rotates along the first direction; if it is determined that the second number of pulses is equal to or greater than a second set number of pulses, controlling the first driving motor to rotate along a second direction, and counting a third number of pulses for the first driving motor to rotate along the second direction, the first direction being opposite to the second direction; If it is determined that the third pulse number is equal to or greater than the second set pulse number, clearing the first pulse number, the second pulse number, and the third pulse number to zero, and calculating the number of reciprocations of the filter along a preset trajectory; and controlling the self-cleaning assembly to stop cleaning the filter when it is determined that the number of cycles is equal to or greater than a set number. The air conditioner indoor unit according to claim 19.

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