Air conditioner and its control method

Abstract

An air conditioner (1) and a control method thereof are provided. The air conditioner (1) includes an outdoor unit (900) and an indoor unit (1000). The indoor unit (1000) is connected to the outdoor unit (900), and includes a housing (100), a filter (210), a self-cleaning assembly (300), and a controller (80). The self-cleaning assembly (300) is configured to perform an automatic cleaning function to remove foreign objects on the filter. The controller (80) is configured to, when it is determined that the air conditioner (1) is powered on and is started and operating, obtain a continuous stop time within a current cleaning cycle of the air conditioner (1); when it is determined that the continuous stop time is greater than a first set time threshold, determine whether a first set condition is satisfied; when it is determined that the first set condition is satisfied, control the air conditioner (1) to stop, control the self-cleaning assembly (300) to perform the automatic cleaning function, and after the execution of the automatic cleaning function is completed, control the air conditioner (1) to enter a next cleaning cycle.

Description

Technical Field

[0001] (Cross - reference to related applications) This application claims priority based on PCT International Patent Application No. PCT / CN2023 / 096723 filed on May 29, 2023, PCT International Patent Application No. PCT / CN2023 / 105581 filed on July 3, 2023, and Chinese Patent Application No. 202211342326.3 filed on October 31, 2022. All of their disclosure contents are incorporated herein by reference. The above - mentioned PCT International Patent Application No. PCT / CN2023 / 096723 claims priority based on Chinese Patent Application No. 202223608409.0 filed on December 30, 2022 and Chinese Patent Application No. 202223602180.X filed on December 30, 2022. The above - mentioned PCT International Patent Application No. PCT / CN2023 / 105581 claims priority based on Chinese Patent Application No. 202321340922.8 filed on May 29, 2023.

[0002] This disclosure relates to the field of air - conditioning technology, and particularly to air conditioners and their control methods.

Background Art

[0003] In family life, air conditioners have become one of the essential household appliances. The indoor unit is installed indoors as part of the air conditioner and is used to raise or lower the indoor temperature by exchanging heat with the indoor air.

[0004] The indoor unit filters the air entering the indoor unit with a filter to prevent foreign substances such as dust in the air from entering the indoor unit, and cleans the foreign substances attached to the filter with a self - cleaning assembly to maintain the efficient operation of the indoor unit.

Summary of the Invention

Means for Solving the Problems

[0005] In one aspect, an air conditioner is provided, and the air conditioner includes an outdoor unit and an indoor unit. The indoor unit is connected to the outdoor unit, and the indoor unit includes a housing, a filter, a self-cleaning assembly, and a controller. The housing has a suction port. The filter covers the suction port. The self-cleaning assembly is configured to perform an automatic cleaning function to remove foreign matter on the filter. When it is determined that the power of the air conditioner is turned on and startup and operation are being performed, the controller acquires the continuous stop time within the current cleaning cycle of the air conditioner, and when it is determined that the continuous stop time is greater than a first set time threshold, determines whether a first set condition is satisfied. When it is determined that the first set condition is satisfied, the controller controls the air conditioner to stop, controls the self-cleaning assembly to perform the automatic cleaning function, and after the execution of the automatic cleaning function is completed, controls the air conditioner to enter the next cleaning cycle.

[0006] In another aspect, a control method of an air conditioner is provided, and the air conditioner includes an outdoor unit and an indoor unit. The indoor unit is connected to the outdoor unit, and the indoor unit includes a housing, a filter, a self-cleaning assembly, and a controller. The housing is provided with a suction port. The filter covers the suction port. The self-cleaning assembly is configured to perform an automatic cleaning function to remove foreign matter on the filter. The controller is coupled to the outdoor unit, the indoor unit, the housing, the filter, and the self-cleaning assembly. The control method includes, when it is determined that the power of the air conditioner is turned on and startup and operation are being performed, obtaining a continuous stop time within the current cleaning cycle of the air conditioner; when it is determined that the continuous stop time is greater than a first set time threshold, determining whether a first set condition is satisfied; when it is determined that the first set condition is satisfied, controlling the air conditioner to stop and controlling the self-cleaning assembly to perform the automatic cleaning function; and after the execution of the automatic cleaning function is completed, controlling the air conditioner to enter the next cleaning cycle. Here, the first set condition includes that the continuous operation time obtained after the startup and operation of the air conditioner are performed is greater than a second set time threshold.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7A

Figure 7B

Figure 8A

Figure 8B

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

Figure 19

Figure 20

Figure 21

Figure 22

Figure 23

Figure 24

Figure 25

Figure 26

Figure 27

Figure 28

Figure 29

Figure 30

Figure 31

Figure 32

Figure 33

Figure 34

Figure 35

Figure 36

Figure 37

DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, with reference to the drawings, some embodiments of the present disclosure will be clearly and completely described. Of course, the embodiments described herein are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments conceivable to those skilled in the art shall be included within the scope of the present disclosure.

[0009] In this specification, the use of "applied to..." or "arranged to..." means open and inclusive language and does not exclude a device that is applied or arranged to perform additional tasks or steps.

[0010] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings for the convenience of description or simplification of the description of the present application, and does not indicate or imply that the device or element mentioned needs to have a specific orientation and be structured or operated in a specific orientation, so it should not be understood as limiting the present application.

[0011] Hereinafter, for the convenience of description, unless otherwise specified, the expressions of the up, down, left, right, front, and rear directions in the present disclosure are based on the state during the operation of the indoor unit. When the indoor unit is operating, the side facing the user is the front side, and the opposite side is the rear side. The height direction of the indoor unit is the up and down direction. The length direction of the indoor unit is the left and right direction, and the thickness direction of the indoor unit is the front and rear direction.

[0012] The air conditioner 1 is usually divided into a separate type air conditioner and an integrated type air conditioner. The separate type air conditioner includes an indoor unit and an outdoor unit, and the integrated type air conditioner 1 integrates all the components included in the air conditioner 1 into one housing. Usually, the integrated type air conditioner can be freely moved within a room. Some embodiments of the present disclosure can be applied to a separate type air conditioner or an integrated type air conditioner.

[0013] Taking a split-type air conditioner as an example, the indoor unit includes an indoor heat exchanger, an indoor fan, and an indoor expansion valve, and the outdoor unit includes an outdoor heat exchanger, a compressor, and an outdoor expansion valve. The compressor, condenser (indoor heat exchanger or outdoor heat exchanger), expansion valve (indoor expansion valve and outdoor expansion valve), and evaporator (outdoor heat exchanger or indoor heat exchanger) execute the refrigerant cycle of the air conditioner 1. The refrigerant cycle includes a series of processes related to compression, condensation, expansion, and evaporation, and circulates and supplies the refrigerant to the object to be adjusted. The indoor fan is configured to promote the heat exchange between the refrigerant flowing in the heat transfer tube of the indoor heat exchanger and the indoor air and assist in temperature adjustment.

[0014] With the popularization of air conditioners, users' requirements for air conditioners are also increasing. The indoor unit includes an air inlet and an air outlet. A filter is installed at the air inlet to filter the air entering the indoor unit and prevent foreign matters such as dust in the air from entering the indoor unit. After the indoor unit operates for a certain period of time, there may be too many foreign matters such as dust adhering to the filter, blocking part of the filter, reducing the suction air volume, and reducing the cooling efficiency or heating efficiency of the air conditioner.

[0015] Generally, a roller brush is installed inside the indoor unit to remove foreign matters adhering to the filter by the roller brush, so that the filter maintains a high filtering ability and the cooling efficiency or heating efficiency of the indoor unit is maintained. When the indoor unit operates for a certain period of time, the foreign matters adhering to the filter increase, and it is necessary to remove the filtration assembly and clean the structures such as the filter and the roller brush in the filtration assembly. In the process of removing the filtration assembly, since a drive motor for driving the filter to move relative to the roller brush is connected to the filter, it is necessary to remove the drive motor before removing the filtration assembly. However, when removing the filtration assembly, there may be a safety risk of electric shock due to contact with the drive motor. Furthermore, since the detachment of the filtration assembly is not easy, the assembly efficiency of the indoor unit is low, which is disadvantageous for the user to clean the filtration assembly.

[0016] Some embodiments of the present disclosure provide an indoor unit 1000. As shown in FIGS. 1, 4, 5, and 10, the indoor unit 1000 includes a housing 100, a filtration assembly 200, a self-cleaning assembly 300, a drive assembly 400, and a transmission assembly 500 (see FIG. 11).

[0017] As shown in FIG. 18, the housing 100 includes a first plate 191, a second plate 192, a third plate 193, and a fourth plate 194. The first plate 191 is a side plate on the side away from the wall when the indoor unit is attached to an indoor wall. The second plate 192 is a side plate on the side close to the wall when the indoor unit is attached to an indoor wall. The third side plate 193 and the fourth plate 194 are respectively connected to the first plate 191 and the second plate 192, and extend along a direction perpendicular to the first plate 191 and the second plate 192, respectively. For example, the third side plate 193 is a side plate on one side in the length direction of the housing 100 (i.e., the left-right direction shown in FIG. 1), and the fourth plate 194 is a side plate 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 third side plate 193 is the left side plate of the indoor unit 1000, and the fourth plate 194 is the right side plate of the indoor unit 1000.

[0018] The housing 100 includes a suction port 110. For example, a part of the top of the housing 100 is open, and the suction port 110 is formed. The filtration assembly 200 is installed in the housing 100 and is located at the suction port 110. The filtration assembly 200 is configured to filter the air entering the indoor unit 1000 from the suction port 110 to prevent foreign matter in the air from entering the indoor unit 1000. The self-cleaning assembly 300 is installed in the housing 100 and is configured to remove foreign matter attached to the filtration assembly 200.

[0019] The drive assembly 400 is installed on the housing 100, and the transmission assembly 500 is installed inside the housing 100. The transmission assembly 500 is connected to the self-cleaning assembly 300 and the drive assembly 400 respectively, and under the drive of the drive assembly 400, the self-cleaning assembly 300 is moved to remove foreign matters attached to the filtration assembly 200 by the self-cleaning assembly 300, perform self-cleaning operations, and is configured to realize the maintenance of the cooling efficiency or heating efficiency of the indoor unit 1000.

[0020] In some embodiments, as shown in FIGS. 2 and 5, the indoor unit 1000 further includes an indoor heat exchanger 600, a first fan assembly 700, and an air outlet. The indoor heat exchanger 600 is installed inside the housing 100 and is configured to exchange heat with the indoor air entering from the suction port 110. The first fan assembly 700 is installed on the side away from the suction port 110 of the indoor heat exchanger 600 and is configured to suck in and pump out the indoor air.

[0021] For example, when the first fan assembly 700 operates, the fan rotates to suck in the indoor air from the suction port 110, exchange heat between the indoor air and the indoor heat exchanger 600, and then pump out the indoor air that has been heat-exchanged through the indoor heat exchanger 600 from the air outlet. The indoor unit 1000 realizes the heating or cooling effect by heating or cooling the indoor air through the indoor heat exchanger 600, thereby increasing or decreasing the indoor temperature.

[0022] In some embodiments, as shown in FIGS. 6, 7A, and 7B, the filtration assembly 200 includes a filter 210. The filter 210 is installed between the suction port 110 and the indoor heat exchanger 600 (as shown in FIG. 5) and covers the suction port 110, so that the filter 210 can filter foreign matters in the air entering the indoor unit 1000 from the suction port 110.

[0023] The self-cleaning assembly 300 includes a first base 310, a first cleaning brush 320, a first reel 330, and a second reel 340. The first base 310 is provided within the housing 100 and includes a second mounting portion 311 and a first bracket 312. One side of the first bracket 312 is connected to the side of the second mounting portion 311 close to the second plate 192 and extends along the thickness direction of the indoor unit 1000 (the front-rear direction shown in FIG. 7A). A first cavity 313 (for example, a mounting cavity) is defined within the second mounting portion 311, and a part of the top of the first cavity 313 is open. The first bracket 312 is configured to carry the filter 210. The filter 210 is installed on the first bracket 312 and can move relative to the first bracket 312.

[0024] The first cleaning brush 320, the first reel 330, and the second reel 340 are rotatably installed within the first 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 indoor unit 1000. The first cleaning brush 320 includes a first hair 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 at an interval and are substantially 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.

[0025] In some embodiments, as shown in FIGS. 10 and 11, the transmission assembly 500 is installed on the first 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.

[0026] The drive assembly 400 is installed on the housing 100, and the drive assembly 400 includes a drive gear 410. The drive gear 410 is connected to the power output end. The power output end of the drive assembly 400 is removably connected to the transmission assembly 500. For example, the drive assembly 400 is a drive motor. The drive 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 through the transmission assembly 500. That is, relative movement occurs between the first cleaning brush 320 and the filter 210, so that different regions of the filter 210 are installed opposite to the first cleaning brush 320.

[0027] For example, the drive assembly 400 rotates the first reel 330 and the second reel 340 through 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. In this way, the filter 210 is stretched between the first reel 330 and the second reel 340 and moves relative to the first cleaning brush 320. Thus, the first cleaning brush 320 can clean the area of the filter 210 facing it.

[0028] 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. Further, the first driven gear 510 meshes with the intermediate gear 540.

[0029] In the process of the operation of the self-cleaning assembly 300, the driving assembly 400 operates to rotate the driving gear 410 on the power output end along the first direction, thereby rotating the first driven gear 510 along the second direction, and in turn, 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.

[0030] In this way, 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 track. As a result, different regions on the filter 210 face the first cleaning brush 320 in sequence, and the first cleaning brush 320 cleans different regions of the filter 210.

[0031] It should be noted that the first direction is opposite to the second direction. When the first reel 330 rotates along the first direction to wind up the filter 210, the second reel 340 rotates along the second direction to unwind the filter 210.

[0032] For example, referring to FIGS. 7A, 7B, and 11, the first driven gear 510 is rotated counterclockwise under the drive of the driving gear 410, rotating the first reel 330 counterclockwise to wind up the filter 210. Then, while the first driven gear 510 rotates counterclockwise, it rotates the second driven gear 520 clockwise, thereby rotating the second reel 340 clockwise to unwind the filter 210.

[0033] The first driven gear 510 is rotated in the clockwise direction under the drive of the drive gear 410, rotating the first reel 330 in the clockwise direction, unwinding the filter 210. Then, while the first driven gear 510 rotates in the clockwise direction, it rotates the second driven gear 520 in the counterclockwise direction, thereby rotating the second reel 340 in the counterclockwise direction and winding up the filter 210. This is understood.

[0034] Also, the first driven gear 510 simultaneously rotates the intermediate gear 540 along the first direction, whereby the intermediate gear 540 rotates the third driven gear 530 along the second direction, and by extension, 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.

[0035] For example, since the number of teeth of the first driven gear 510 and the second driven gear 520 is the same, the rotation speeds of the first reel 330 and the second reel 340 are the same, whereby the filter 210 is stretched over the first reel 330 and the second reel 340.

[0036] In some embodiments, as shown in FIGS. 10, 11, and 12, the first base 310 further includes a second cavity 314. One side of the indoor unit 1000 along the length direction of the second mounting portion 311 is recessed toward the other side, thereby forming the second cavity 314. The transmission assembly 500 is installed in the second 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 second cavity 314. Providing the second cavity 314 in the first 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, and is advantageous for routing the wiring inside the indoor unit 1000, preventing the operating articles (such as the intermediate gear 540) from damaging other articles (such as the first fan assembly 700).

[0037] In some embodiments, as shown in FIG. 12, on the bottom side of the second cavity 314, a first opening 3141, a second opening 3142, and a third opening 3143 communicating with the first cavity 313 are provided. As shown in FIG. 14, a first prism 511 is provided in the middle of the first driven gear 510, and a first hole adapted to the first prism 511 is provided at 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.

[0038] A second prism 521 is provided in the middle of the second driven gear 520, and a second hole adapted to 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 middle of the third driven gear 530, and a third hole adapted to 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.

[0039] 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 inside the 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, so that the rotational stability can be improved.

[0040] In this way, the indoor air enters the housing 100 from the suction port 110 under the action of the first fan assembly 700, is filtered through the filter 210, and then flows to the indoor heat exchanger 600. After the indoor air is heat-exchanged through the indoor heat exchanger 600, it is blown out from the air outlet.

[0041] After the indoor unit 1000 operates for a certain period of time, foreign substances in the indoor air are filtered through the filter 210 and then deposited on the surface of the filter 210, attaching a large amount of foreign substances to the filter 210, which may affect the filtering effect and suction effect of the filter 210. When there are a lot of foreign substances attached to the filter 210, the self-cleaning assembly 300 of the indoor unit 1000 can remove the foreign substances attached to the filter 210 and maintain the filtering ability of the filter 210, so that the cooling efficiency or heating efficiency of the indoor unit 1000 can be improved.

[0042] In some embodiments, as shown in FIGS. 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 clamped between the first portion 331 and the second portion 332, and the other end of the filter 210 is clamped between the third portion 341 and the fourth portion 342.

[0043] It should be noted that by installing the first reel 330 and the second reel 340 as structures with two removably connected parts and clamping them, the two ends of the filter 210 are fixed to the first reel 330 and the second reel respectively, so that the stability of the connection between the filter 210 and the first reel 330 and the second reel 340 can be improved, which is beneficial to maintaining that the filter is stretched between the first reel 330 and the second reel 340.

[0044] 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 indoor unit 1000 (the front-rear direction shown in FIGS. 8A and 8B), and have a stripe 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 beneficial for winding up and winding down the filter 210 on the first reel 330 and the second reel 340.

[0045] On the inner surface of the first part 331, a first locking portion 333 is provided, and on the inner surface of the second part 332, a second locking portion 334 is provided. By locking and connecting the first locking portion 333 and the second locking portion 334, the first part 331 and the second part 332 are removably connected. On the inner surface of the third part 341, a third locking portion 343 is provided, and on the inner surface of the fourth part 342, a fourth locking portion 344 is provided. By locking and connecting the third locking portion 343 and the fourth locking portion 344, the third part 341 and the fourth part 342 are removably connected. In this way, realizing the connection between the first part 331 and the second part 332 and the connection between the third part 341 and the fourth part 342 by locking connection is advantageous for the user to take out and clean the filter 210.

[0046] In some embodiments, referring to FIGS. 9, 10, and 15, the 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 suction ports 110. Each filtration assembly 200 corresponds to one self-cleaning assembly 300 respectively, and each suction port 110 corresponds to one filtration assembly 200 respectively.

[0047] By installing a plurality of suction ports 110, a plurality of filtration assemblies 200, and a plurality of self-cleaning assemblies 300 in the indoor unit 1000, it is advantageous to increase the suction air volume and the blowing air volume of the indoor unit 1000. Therefore, it is understood that the cooling efficiency or the heating efficiency of the indoor unit 1000 can be improved.

[0048] The indoor unit 1000 further includes a plurality of drive assemblies 400 and a plurality of transmission assemblies 500, and each drive assembly 400 corresponds to one transmission assembly 500 respectively. Each drive assembly 400 is connected to the filtration assembly 200 via its corresponding transmission assembly 500. In this way, each filtration assembly 200 can be individually driven to perform self-cleaning operations.

[0049] In some embodiments, as shown in FIGS. 13 and 14, the indoor unit 1000 further includes at least one link 550. The plurality of 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 way, the drive assembly 400 can drive the plurality of self-cleaning assemblies 300 to operate via the link 550 and the plurality of transmission assemblies 500, which is advantageous for simplifying the structure of the indoor unit 1000.

[0050] In some embodiments, as shown in FIG. 12, the first base 310 further includes a notch 315. For example, the side of the second cavity 314 close to the second plate 192 is open, and the notch 315 is formed. A part of the first driven gear 510 protrudes from the notch 315, and the drive gear 410 meshes with the part of the first driven gear 510.

[0051] 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. Installing the notch 315 on the first 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 second mounting portion 311, and the first driven gear 510 is a gear that is removed from the housing 100 together with the second mounting portion 311.

[0052] That is, the power output end of the drive assembly 400 and the transmission assembly 500 are removably connected, but the transmission assembly 500 is connected to the self-cleaning assembly 300, and the filtration assembly 200 is connected to the self-cleaning assembly. Therefore, when the user needs to remove the filtration assembly 200 and the self-cleaning assembly 300 to clean the filtration assembly 200 and the self-cleaning assembly 300, the first base 310 can be removed from the housing 100 to remove the self-cleaning assembly 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.

[0053] In this way, the user can remove the filtration assembly 200 and the self-cleaning assembly 300 without contacting the drive assembly 400, clean the filtration assembly 200 and the self-cleaning assembly 300, which is advantageous for avoiding safety risks caused by contact with the drive assembly 400. Furthermore, since the drive assembly 400 is hidden in the housing 100, it is advantageous for protection and can avoid damage caused by external actions.

[0054] In some embodiments, as shown in FIG. 2, the housing 100 further includes a first connection portion 120 and a first mounting portion 130 (for example, a mounting groove). For example, a part of the front side of the housing 100 is opened to form the first connection portion 120. The first mounting portion 130 is defined in the housing 100. The front side of the first mounting portion 130 is opened. The first connection portion 120 communicates with the first mounting portion 130, and the first connection portion 120 is located above the first mounting portion 130. The second mounting portion 311 is provided in the first mounting portion 130. The self-cleaning assembly 300 is installed inside the second mounting portion 311, and the transmission assembly 500 is installed outside the second mounting portion 311. The first bracket 312 is installed in the housing 100 through the first connection portion 120.

[0055] The first reel 330, the second reel 340, and the first cleaning brush 320 are installed in the second mounting portion 311. The second mounting portion 311 is installed in the first mounting portion 130. One side of the first bracket 312 is connected to the second mounting portion 311 and extends rearward via the first connection portion 120. Therefore, by removing the second mounting portion 311 from the first mounting portion 130 via the first connection portion 120, the first bracket 312 and the filter 210 can be removed from the housing 100 together with the second mounting portion 311, realizing the removal of the filtration assembly 200 and the self-cleaning assembly 300. In this way, it is advantageous for reducing the difficulty of detaching and attaching the filtration assembly and the self-cleaning assembly, and facilitating the cleaning of the removed filtration assembly 200 and self-cleaning assembly 300 by the user.

[0056] Similarly, by attaching the second mounting portion 311 into the first mounting portion 130 via the first connection portion 120, the first bracket 312 and the filter 210 can be attached to the housing 100 together with the second mounting portion 311, realizing the attachment of the filtration assembly 200 and the self-cleaning assembly 300.

[0057] In some embodiments, as shown in FIG. 9, the indoor unit 1000 further includes a first position limiting portion 160 (e.g., a position limiting block). The first position limiting portion 160 is rotatably installed on the first plate 191 of the housing 100 and is close to the first mounting portion 130. The first position limiting portion 160 is configured to be rotatably switched between a locked position and an unlocked position.

[0058] For example, when the first position limiting portion 160 is in the locked position, at least a part of the first position limiting portion 160 is in front of the second mounting portion 311, thus inhibiting the second mounting portion 311 from sliding out of the first mounting portion 130. When the first position limiting portion 160 is in the unlocked position, since the first position limiting portion 160 is on the first plate 191 of the housing 100, the second mounting portion 311 can slide forward and detach from the first mounting portion 130.

[0059] When the indoor unit 1000 operates, the first position limiting part 160 is in the locked position to prevent the second mounting part 311 from sliding out of the first mounting part 130. When it is necessary to clean the filtration assembly 200, the second mounting part 311 can be taken out by rotating the first position limiting part 160 to the unlocked position.

[0060] For example, the indoor unit 1000 includes a plurality of first position limiting parts 160. Installing a plurality of first position limiting parts 160 on the housing 100 is advantageous for the user to detach and attach the filtration assembly 200.

[0061] In some embodiments, as shown in FIG. 15, the self-cleaning assembly 300 further includes a first dust collection box 350 and an ash removal box 360. The first dust collection box 350 is installed on the first base 310 and is located below the first cleaning brush 320. The first dust collection box 350 is configured to collect foreign matters removed from the filter 210.

[0062] As shown in FIGS. 3 and 9, the indoor unit 1000 further includes a third engagement groove 150. The third engagement groove 150 is provided on the first plate 191 of the housing 100. The ash removal box 360 is installed in the third engagement groove 150 and is located below the first dust collection box 350. The third engagement groove 150 has a first side wall 151 and a second side wall 152 that are provided at intervals along the length direction of the indoor unit 1000 (i.e., the left-right direction in FIG. 9). A first engagement groove 153 is provided on the first side wall 151, and a second engagement groove 154 is provided on the second side wall 152. As shown in FIG. 12, the ash removal box 360 is provided with a first engagement block and a second engagement block that are provided at intervals along the length direction of the indoor unit 1000 (i.e., the left-right direction in FIG. 9).

[0063] 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, the ash removal box 360 is removably attached in the third engagement groove 150.

[0064] In some embodiments, as shown in FIGS. 15 and 16, the self-cleaning assembly 300 further includes a second cleaning brush 370. The second cleaning brush 370 is installed in the first dust collection box 350 and is configured to brush off foreign matter attached to the first cleaning brush 320 into the first dust collection box 350. The second cleaning brush 370 includes a second hair brush 371, and the second hair brush 371 is configured to be inserted into the first cleaning brush 320.

[0065] When the self-cleaning assembly operates, some foreign matter may adhere to the first hair brush 321. Since the second hair brush 371 can brush off the foreign matter attached to the first hair brush 321 into the first dust collection box 350, the first hair brush 321 can contact the filter 210 without foreign matter adhering thereto and remove the foreign matter attached to the filter 210, which is advantageous for improving the cleaning effect of the filter 210.

[0066] In some embodiments, as shown in FIGS. 1 and 4, the 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 first connection portion 120. For example, when the indoor unit 1000 operates, the panel 800 is installed to cover the front side of the housing 100 to harmonize the appearance of the indoor unit 1000. When it is necessary to remove and clean the filtration assembly 200 and the self-cleaning assembly 300, 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 first connection portion 120.

[0067] As shown in FIG. 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 panel 800 is removably connected to the front side of the housing 100 by the engagement of the first fitting portion and the second fitting portion 140.

[0068] In some embodiments, as shown in FIG. 17, the filter 210 includes a filtering section 211 and a blocking section 212 connected in sequence. The filtering section 211 is configured to filter the air entering the housing 100 from the suction port 110. The blocking section 212 is configured to block the air entering the housing 100 from the suction port 110.

[0069] For example, when the filter 210 moves along a preset track, the filter 210 can move between a filtering position and a blocking position. When the filter 210 is in the filtering position, the filtering section 211 covers the suction port 110 and filters the air entering the housing 100 from the suction port 110. When the filter 210 is in the blocking position, the blocking section 212 covers the suction port 110 and blocks the air entering the housing 100 from the suction port 110.

[0070] When the indoor unit 1000 operates, the filter 210 is in the filtering position, and the filtering section 211 covers the suction port 110 to filter the air entering from the suction port 110. When the indoor unit stops operating, the filter 210 moves from the filtering position to the blocking position, and the blocking section 212 covers the suction port 110, so that the air and dust are blocked by the blocking section 212, avoiding dust from entering the interior of the housing 100.

[0071] It is understood that the filtering section 211 is a region having a plurality of holes with a small pore diameter, and the plurality of holes on the filtering section 211 can filter foreign matters such as large particles of dust in the air and allow the filtered air to enter the housing 100. The blocking section 212 is a region without holes, and air and dust cannot pass through. For example, the blocking section 212 is made of a plastic film, and a heat fusion part for connecting the blocking section 212 and the filtering section 211 is provided between the blocking section 212 and the filtering section 211.

[0072] In this way, by providing the blocking portion 212 in the filter 210, when the indoor unit 1000 stops operating, air and dust cannot enter the housing 100, the entry of dust and the like into the housing 100 can be avoided, foreign matters such as dust can be prevented from adhering to the indoor heat exchanger 600 or the first fan assembly 700 in the housing 100, the interior of the indoor unit 1000 can be made cleaner, and it is advantageous for improving the cooling effect or heating effect of the indoor unit 1000.

[0073] In some embodiments, the indoor unit 1000 further includes a sensor and a controller. The sensor is configured to send a signal indicating the execution of the self-cleaning mode to the controller. For example, the signal is a signal instructing the execution or stop of the self-cleaning mode of the indoor unit 1000. When the amount of foreign matter on the filter 210 reaches a preset amount, the sensor sends a signal indicating the 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 indicating the stop of the self-cleaning mode to the controller.

[0074] The controller is configured to receive the signal from the sensor, respond to the signal, and control the indoor unit 1000 to execute the operation indicated by the signal. For example, when receiving a signal indicating the execution of the self-cleaning mode from the sensor, it controls the indoor unit 1000 to execute the self-cleaning mode. When receiving a signal indicating the stop of the self-cleaning mode from the sensor, it controls the indoor unit 1000 to stop the self-cleaning mode.

[0075] For example, after the indoor unit 1000 operates for a certain period of time, the indoor air continues to flow from the suction port 110 to the indoor heat exchanger 600 under the action of the first fan assembly 700. After heat exchange in the indoor heat exchanger 600, it is sent into the room from the air outlet by the first fan assembly 700. Therefore, the foreign matter adhering to the filter 210 facing the suction port 110 in the indoor unit 1000 increases. When the foreign matter on the filter 210 reaches a preset amount, the sensor sends a signal indicating the execution of the self-cleaning mode to the controller.

[0076] The controller receives the signal indicating the execution of the self-cleaning mode from the sensor and controls the indoor unit 1000 to execute the self-cleaning mode. When the self-cleaning mode is executed, the drive assembly 400 can rotate the first reel 330 and the second reel 340 in opposite directions via the transmission assembly 500, so as to drive the filter 210 to move along a preset track. The first cleaning brush 320 is installed opposite to different regions of the filter 210 and can clean the region of the filter 210 installed opposite to itself.

[0077] When the first reel 330 and the second reel 340 rotate in opposite directions, the first cleaning brush 320 abuts against the first reel 330 to remove the foreign matter on the filter 210 wound around the first reel 330, and the foreign matter falls into the first dust collection box 350 to realize the collection of the foreign matter. When there is a lot of foreign matter in the first dust collection box 350, the first dust collection box 350 can be removed for cleaning.

[0078] In some embodiments of the present disclosure, another indoor unit 100A is provided. As shown in FIG. 19, the indoor unit 100A includes a housing 100, an indoor heat exchanger 20, a second fan assembly 30, at least one filter 210, at least one self-cleaning assembly 300, at least one drive assembly 400, and at least one transmission assembly 500.

[0079] As shown in FIGS. 20 and 21, the housing 100 includes a fifth plate 12, a sixth plate 13, a seventh plate 14, and an eighth plate 15. The fifth plate 12 is a side plate that is away from the wall when the indoor unit is attached to the indoor wall. The sixth plate 13 is a side plate that is close to the wall when the indoor unit is attached to the indoor wall. The seventh plate 14 and the eighth plate 15 are respectively connected to the fifth plate 12 and the sixth plate 13, and extend along a direction perpendicular to the fifth plate 12 and the sixth plate 13 respectively.

[0080] For example, the seventh plate 14 is a side plate on one side in the length direction of the housing 100 (i.e., the left - right direction shown in FIG. 20), and the eighth plate 15 is a side plate on the other side in the length direction of the housing 100. For example, the seventh plate 14 is the left - hand side plate of the indoor unit 100A, and the eighth panel 15 is the right - hand side plate of the indoor unit 100A.

[0081] The housing 100 includes at least one suction port 110 and an air outlet. A part of the top of the housing 100 is open, and the suction port 110 is formed. For example, as shown in FIG. 20, the housing 100 includes two suction ports 110, and the two suction ports 110 are respectively installed at the top of the housing 100 and are spaced apart along the length direction of the housing 100.

[0082] A part of the bottom of the housing 100 is open, and the air outlet is formed. The indoor heat exchanger 20 is installed in the housing 100 and is configured to exchange heat with the indoor air entering from the suction port 110. The second fan assembly 30 is installed on the side away from the suction port 110 of the indoor heat exchanger 20 and is configured to suck in and pump out the indoor air. For example, when the second fan assembly 30 operates, the fan rotates to suck in the indoor air from the suction port 110, exchanges heat between the indoor air and the indoor heat exchanger 20, and then pumps out the indoor air heat - exchanged by the indoor heat exchanger 20 from the air outlet.

[0083] It is understood that indoor air enters the housing 100 from the suction port 110 under the action of the second fan assembly 30, is filtered by the filter 210, and then enters the indoor heat exchanger 20 for heat exchange. For example, when the indoor unit 100A is in cooling operation, the indoor air forms cold air after heat exchange with the indoor heat exchanger 20 and is blown into the room from the air outlet.

[0084] In addition, the second fan assembly 30 can guide indoor air from the suction port 110 to the indoor heat exchanger 20 and increase the suction air volume entering the indoor heat exchanger 20 from the suction port 110. The second fan assembly 30 can adjust the suction air volume entering the indoor heat exchanger 20.

[0085] The filter 210 is installed between the suction port 110 and the indoor heat exchanger 20 and covers the suction port 110. The filter 210 is configured to filter the air entering the indoor unit 100A from the suction port 110 to prevent foreign matters in the air from entering the indoor unit 100A.

[0086] For example, when the indoor unit 100A is operating, the indoor air entering the housing 100 from the suction port 110 first passes through the filter 210 and is filtered by the filter 210 before entering the indoor heat exchanger 20, thereby preventing foreign matters in the indoor air from entering the indoor heat exchanger 20, avoiding the accumulation of foreign matters in the indoor heat exchanger 20 and causing blockage, and preventing the heat exchange efficiency of the indoor heat exchanger 20 from decreasing. The indoor air heat-exchanged by the indoor heat exchanger 20 is blown out from the air outlet under the action of the second fan assembly 30.

[0087] The self-cleaning assembly 300 is installed within the housing 100 and is configured to clean foreign matter adhering to the filter 210. The drive assembly 400 is installed on the housing 100, and the transmission assembly 500 is installed within the housing 100. The drive assembly 400 is configured to drive the transmission assembly 500 to rotate. The transmission assembly 500 is connected to the self-cleaning assembly 300 and the drive assembly 400 respectively, and under the drive of the drive assembly 400, moves the self-cleaning assembly 300 to remove the foreign matter adhering to the filtration assembly 200 from the self-cleaning assembly 300, and is configured to realize the maintenance of the cooling efficiency or heating efficiency of the indoor unit 100A.

[0088] In some embodiments, as shown in FIG. 24, the self-cleaning assembly 300 includes a second base 51, a fourth reel 53, a third reel 52, a cleaning brush assembly 54, and a second dust collection box 55. The second base 51 is provided within the housing 100 and is close to the fifth plate 12. The second base 51 includes a base main body 511A and a second bracket 512. One side of the second bracket 512 is connected to the side of the base main body 511A close to the sixth plate 13 and extends along the thickness direction of the housing 100 (i.e., the front-rear direction shown in FIG. 20). The second bracket 512 is configured to carry the filter 210. The filter 210 is installed on the second bracket 512 and may move along a preset track on the second bracket 512.

[0089] The fourth reel 53, the third reel 52, and the cleaning brush assembly 54 are rotatably connected to the base body 511A, and the fourth reel 53, the third reel 52, and the cleaning brush assembly 54 extend along the length direction of the housing 100 respectively. The fourth reel 53 and the third reel 52 are installed at intervals and are substantially parallel. One end of the filter 210 is connected to the fourth reel 53, and the other end is connected to the third reel 52. The filter 210 is wound around the outer periphery of at least one of the fourth reel 53 and the third reel 52, and the filter 210 is stretched between the fourth reel 53 and the third reel 52. The cleaning brush assembly 54 is installed close to the third reel 52 and is configured to clean foreign matters on the filter 210 when the third reel 52 winds up or winds down the filter 210.

[0090] The self-cleaning assembly 300 further includes a cleaning cavity 56. A cleaning cavity 56 is defined within the base body 511A. The cleaning cavity 56 includes a fourth opening 563 and a fifth opening 564. The top of the cleaning cavity 56 is open to form the fourth opening 563. The bottom of the cleaning cavity 56 is open to form the fifth opening 564. The fourth reel 53 is located above the fourth opening 563, the third reel 52 is located at the fourth opening 563, and the cleaning brush assembly 54 is located within the cleaning cavity 56. The second dust collection box 55 is installed below the fifth opening 564 and is configured to accommodate the foreign matters swept off the filter 210 by the cleaning brush assembly 54.

[0091] In some embodiments, the fourth reel 53 and the third reel 52 rotate along opposite directions. During the cleaning process by the self-cleaning assembly 300, the filter 210 is wound up on the third reel 52 and wound down on the fourth reel 53, or the filter 210 is wound down on the third reel 52 and wound up on the fourth reel 53. At least a part of the cleaning brush assembly 54 is in contact with the filter 210, and as the filter 210 is wound up and down, the cleaning brush assembly 54 generates relative movement with the filter 210. The cleaning brush assembly 54 can be installed opposite to different regions of the filter 210 and can clean different regions of the filter 210. Foreign matter on the filter 210 is cleaned into the second dust collection box 55 through the cleaning brush assembly 54.

[0092] In some embodiments, as shown in FIG. 25, the cleaning brush assembly 54 includes a cleaning brush base 541, a third cleaning brush 542, and at least one elastic member 543. The third cleaning brush 542 is provided on the cleaning brush base 541. The cleaning brush base 541 includes a third mounting portion 5411 and a fourth mounting portion 5412. The third mounting portion 5411 is provided on and connected to the fourth mounting portion 5412. One end of any of the at least one elastic member 543 abuts against the third mounting portion 5411, and the other end abuts against the fourth mounting portion 5412.

[0093] For example, the elastic member 543 is a spring. The third cleaning brush 542 is provided on the side of the third mounting portion 5411 away from the fourth mounting portion 5412. When the third cleaning brush 542 abuts against the third reel 52, the third reel 52 applies a force to the third cleaning brush 542, that is, the third reel 52 applies a force to the third mounting portion 5411, thereby compressing the elastic member 543 in the third mounting portion 5411.

[0094] Since the fourth mounting portion 5412 does not move along the height direction of the housing 100 (i.e., the vertical direction shown in FIG. 20), the elastic member 543 applies an elastic force with the same magnitude but opposite direction to the third mounting portion 5412 so that the third cleaning brush 542 applies a force to the third reel 52. As a result, the third cleaning brush 542 can be elastically abutted against the third reel 52. The cleaning brush base 541 abuts the third cleaning brush 542 against the third reel 52 via the elastic member 543, and realizes that the third cleaning brush 542 always abuts against the third reel 52 during the rotation of the third reel 52 or the cleaning brush base 541. This is advantageous for improving the cleaning ability of the third cleaning brush 542 with respect to the filter 210 wound around the third reel 52. At the same time, excessive wear of the third cleaning brush 542 due to hard contact between the third reel 52 and the third cleaning brush 542 is avoided, and the service life of the third cleaning brush 542 is extended.

[0095] The third cleaning brush 542 abuts against the third reel 52 via the elastic member 543. When the fourth reel 53 and the third reel 52 rotate in opposite directions, the third cleaning brush 542 abuts against the third reel 52, and the filter 210 that has moved to the abutting portion can be cleaned. Therefore, it is understood that the foreign matter removed from the filter 210 falls into the second dust collection box 55, realizing the collection of foreign matter. Since the third reel 52 vibrates or has radial runout during rotation, the elasticity of the elastic member 543 is advantageous for improving the stability of the contact between the third cleaning brush 542 and the third reel 52 and avoiding hard contact between the third reel 52 and the third cleaning brush 542.

[0096] For example, after the indoor unit 100A operates for a certain period of time, the indoor air continuously enters the indoor heat exchanger 20 under the action of the second fan assembly 30, is heat-exchanged by the indoor heat exchanger 20, and then is sent into the room. The indoor air entering the indoor heat exchanger 20 is filtered through the filter 210, and then foreign matter in the indoor air accumulates on the surface of the filter 210, increasing the foreign matter adhering to the filter 210 and affecting the filtering effect and suction effect of the filter 210.

[0097] When there is a large amount of foreign matter adhering to the filter 210, the indoor unit 100A executes a self-cleaning mode to clean the foreign matter adhering to the filter 210, maintain the filtering ability of the filter 210, and thereby improve the cooling efficiency or heating efficiency of the indoor unit 100A. When the indoor unit 100A executes the self-cleaning mode, the fourth reel 53 and the third reel 52 rotate, so that the filter 210 is wound up on the fourth reel 53 and wound down on the third reel 52, or the filter 210 is wound down on the fourth reel 53 and wound up on the third reel 52. The filter 210 moves relative to the third cleaning brush 542 under the action of the fourth reel 53 and the third reel 52, and the third cleaning brush 542 is installed opposite to different regions of the filter 210 to clean different regions of the filter 210.

[0098] In some embodiments, as shown in FIGS. 21 and 26, the second dust collection box 55 includes a dust collection box main body 551 and a fourth hole 553. The fourth hole 553 is provided at one end of the housing 100 of the dust collection box main body 551 along the length direction. The housing 100 further includes a positioning member, and the positioning member is provided on the side plate on the side along the length direction of the housing 100. By the fitting engagement between the fourth hole 553 and the positioning member, a detachable connection between the second dust collection box 55 and the housing 100 is realized. When it is necessary to clean the foreign matter in the second dust collection box 55, the second dust collection box 55 can be removed from the housing 100 through the fourth hole 553 and the positioning member to sweep the foreign matter in the second dust collection box 55.

[0099] As shown in FIG. 26, the second 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 100 (that is, the vertical direction shown in FIG. 20). When assembling the second dust collection box 55 to the second base 51, the baffle plate 552 seals the gap between the front side of the second dust collection box 55 and the front side of the second base 51, so as to prevent foreign matters in the second dust collection box 55 from spilling out through the gap.

[0100] In some embodiments, as shown in FIG. 25, the cleaning brush assembly 54 further includes a third cavity 544. The side of the fourth mounting portion 5412 facing the third cleaning brush 542 is open, and the third mounting portion 5411 is provided on the open side of the second mounting portion 5412. The third mounting portion 5411 and the fourth mounting portion 5412 together define the third cavity 544. The elastic member 543 is installed in the third cavity 544. Since both ends of the elastic member 543 are connected to abut against the third mounting portion 5411 and the fourth mounting portion 5412 respectively, when the third mounting portion 5411 is pressed, the third mounting portion 5411 can move toward the fourth mounting portion 5412. In this way, providing the third cavity 544 in the cleaning brush assembly 54 is advantageous for the installation of the elastic member 543 and prevents the elastic member 543 from coming out of the cleaning brush base 541.

[0101] In some embodiments, as shown in FIG. 25, 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 third mounting portion 5411 or the fourth mounting portion 5412. The elastic member 543 is installed by fitting into any one of the positioning posts 545.

[0102] Taking the case where the cleaning brush assembly 54 includes two positioning posts 545 and two elastic members 543, and the two positioning posts 545 are provided on the fourth mounting portion 5412 as an example, the two positioning posts 545 are respectively provided at both ends along the length direction of the housing 100 of the fourth mounting portion 5412. The elastic members 543 are respectively fitted into the positioning posts 545 for installation. In this way, providing the positioning posts 545 on the cleaning brush assembly 54 is advantageous for realizing the position limitation and attachment of the elastic members 543, causing the elastic members 543 to move along the height direction of the housing 100, and causing the third mounting portion 5411 to move the third cleaning brush 542 relative to the fourth mounting portion 5412.

[0103] In some embodiments, as shown in FIG. 25, the cleaning brush base 541 further includes at least one fourth engaging groove 5414 and at least one fifth locking portion 5415. At least one fourth engaging groove 5414 is provided on at least one of the two side walls along the width direction of the housing 100 of the third mounting portion 5411. At least one fifth locking portion 5415 is provided on at least one of the two side walls along the width direction of the housing 100 of the fourth mounting portion 5412. The third mounting portion 5411 is connected to the fourth mounting portion 5412 by the fifth locking portion 5415 and the fourth engaging groove 5414 being fitted and engaged with each other. When the fifth locking portion 5415 is engaged within the fourth engaging groove 5414, the fifth locking portion 5415 may move along the height direction of the housing 100 within the fourth engaging groove 5414.

[0104] For example, when at least one third mounting portion 5411 includes a plurality of fourth engaging grooves 5414, the plurality of fourth engaging grooves 5414 are provided at intervals on the two side walls along the width direction of the housing 100 of the third mounting portion 5411. Corresponding to the plurality of fourth engaging grooves 5414, a plurality of fifth locking portions 5415 are provided on the two side walls along the width direction of the housing 100 of the fourth mounting portion 5412, and the plurality of fifth locking portions 5415 are provided at intervals along the length direction of the housing 100.

[0105] When the third attachment part 5411 fits and engages with the fourth attachment part 5412, the plurality of fourth engagement grooves 5414 fit and engage with the plurality of fifth locking parts 5415, realizing the attachment of the third attachment part 5411 and the fourth attachment part 5412.

[0106] For example, by making the length of the fourth engagement groove 5414 along the height direction of the housing 100 larger than the length of the fifth locking part 5415 along the height direction of the housing 100, the third attachment part 5411 can move along the height direction of the housing 100 with respect to the fourth attachment part 5412.

[0107] When the third cleaning brush 542 abuts against the third reel 52, it is understood that the third attachment part 5411 moves toward the fourth attachment part 5412. When the third cleaning brush 542 separates from the third reel 52, the third attachment part 5411 moves in a direction away from the fourth attachment part 5412. In this way, since the third attachment part 5411 and the fourth attachment part 5412 are engaged by the fitting of the fourth engagement groove 5414 and the fifth locking part 5415, it is advantageous for improving the assembly efficiency of the third attachment part 5411 and the fourth attachment part 5412, simplifying the structure of the cleaning brush base 541, and improving the assembly stability of the third attachment part 5411 and the fourth attachment part 5412.

[0108] Furthermore, when the fifth locking part 5415 is engaged in the fourth engagement groove 5414, the fifth locking part 5415 moves with respect to the fourth engagement groove 5414, which is advantageous for realizing the movement of the third attachment part 5411 with respect to the fourth attachment part 5412, abutting the third cleaning brush 542 against the third reel 52, and improving the cleaning efficiency of the filter 210 by the third cleaning brush 542.

[0109] In some embodiments, as shown in FIGS. 24 to 26, the third mounting portion 5411 includes a first side portion 5416, a second side portion 5417, and a second connecting portion 5413. Both ends of the second connecting portion 5413 along the thickness direction of the housing 100 are respectively connected to the upper sides of the first side portion 5416 and the second side portion 5417. The lower sides of the first side portion 5416 and the second side portion 5417 extend along the height direction of the housing 100 toward the fourth mounting portion 5412. The first side portion 5416, the second side portion 5417, and the second connecting portion 5413 together constitute the third mounting portion 5411.

[0110] The first side portion 5416 and the second side portion 5417 extend toward the fourth mounting portion 5412. One end of the elastic member 543 abuts against the second connecting portion 5413, and the other end of the elastic member 543 is fitted into a positioning post 545 provided on the fourth mounting portion 5412 and installed. The first side portion 5416 and the second side portion 5417 are connected to the fourth mounting portion 5412 by the fitting engagement of the fourth engaging groove 5414 and the fifth locking portion 5415. When assembling the third mounting portion 5411 and the fourth mounting portion 5412, the first side portion 5416 and the second side portion 5417 are located outside both side walls of the fourth mounting portion 5412 along the thickness direction of the housing 100, forming a position limitation for the fourth mounting portion 5412 and avoiding the elastic member 543 from coming out.

[0111] By installing the first side portion 5416, the second side portion 5417, and the second connecting portion 5413 on the cleaning brush base 541 to form the third mounting portion 5411, the third mounting portion 5411 has good structural strength, which is advantageous for the attachment of the third mounting portion 5411 and the third cleaning brush 542, makes the attachment of the third cleaning brush 542 stronger, and can avoid the third cleaning brush 542 from falling off the cleaning brush base 541.

[0112] In some embodiments, as shown in FIGS. 25 and 26, the self-cleaning assembly 300 further includes a mounting groove 57. The mounting groove 57 is provided on the side away from the fourth mounting portion 5412 of the second connection portion 5413. The third cleaning brush 542 is installed in the mounting groove 57. The bottom surface of the mounting groove 57 is flush with the surface of the third cleaning brush 542 close to the third reel 52 and is formed in an arc shape. When the third cleaning brush 542 abuts against the third reel 52, the filter 210 can be cleaned, and the foreign matter generated by the cleaning can fall from the surface of the third cleaning brush 542 into the cleaning cavity 56. In this way, providing the mounting groove 57 in the self-cleaning assembly 300 is advantageous for the installation of the third cleaning brush 542, improving the stability of the installation of the third cleaning brush 542 and improving the position limitation of the third cleaning brush 542 by the third mounting portion 5411.

[0113] In some embodiments, as shown in FIGS. 23, 26, and 27, the self-cleaning assembly 300 is connected to two transmission assemblies 500. The drive assembly 400 is connected to one of the two transmission assemblies 500. The two transmission assemblies 500 are respectively installed at both ends of the self-cleaning assembly 300 along the length direction of the housing 100. The drive assembly 400 is installed at one end of the housing 100 along the length direction of the housing 100.

[0114] The transmission assembly 500 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 500, the two first gears 71 are respectively provided at both ends of the fourth reel 53, the two second gears 72 are respectively provided at both ends of the third reel 52, and the two third gears 73 are respectively provided at both ends of the cleaning brush base 541.

[0115] The drive assembly 400 includes a first drive motor 61 and a second drive motor 62. The first drive motor 61 is connected to one of a first gear 71 and a second gear 72, and is configured to drive so that either the first gear 71 or the second gear 72 rotates. The second drive motor 62 is connected to a third gear 73, and is configured to drive so that the third gear 73 rotates.

[0116] Taking the connection between the first drive motor 61 and the second gear 72 as an example, when the self-cleaning assembly 300 executes the self-cleaning mode, the first drive motor 61 drives so that the second gear 72 rotates along the first direction, and rotates the third reel 52 along the first direction. At the same time, the second gear 72 further rotates the first gear 71 along the second direction, and thus rotates the fourth reel 53 along the second direction. The second drive motor 62 drives so that the third gear 73 rotates, thereby rotating the cleaning brush base 541.

[0117] It should be noted that the first direction is opposite to the second direction. When the fourth reel 53 rotates along the second direction to unwind the filter 210, the third reel 52 rotates along the first direction to wind up the filter 210.

[0118] In this way, under the action of the fourth reel 53 and the third reel 52, the filter 210 stretched between the fourth reel 53 and the third reel 52 moves along a preset track, and a relative movement occurs between the third cleaning brush 542 and the filter 210, realizing the cleaning of the filter 210 by the third cleaning brush 542.

[0119] It is understood that both ends of the fourth reel 53 are respectively connected to the first gear 71, and the fourth reel 53 realizes the rotational connection with the second base 51 through the first gear 71. Both ends of the third reel 52 are respectively connected to the second gear 72, and the third reel 52 realizes the rotational connection with the second 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 the rotational connection with the second base 51 through the third gear 73.

[0120] In some embodiments, as shown in FIGS. 22 to 26, the indoor unit 100A includes two self-cleaning assemblies 300, two drive assemblies 400, and four transmission assemblies 500. One self-cleaning assembly 300, one drive assembly 400, and two transmission assemblies 500 constitute a self-cleaning device, that is, the indoor unit 100A includes two said self-cleaning devices. The two self-cleaning assemblies 300 are provided at intervals along the length direction of the housing 100.

[0121] Taking one of the said self-cleaning devices as an example, the self-cleaning assembly 300 is connected to two transmission assemblies 500, and the two transmission assemblies 500 are respectively installed at both ends of the self-cleaning assembly 300. The drive assembly 400 is connected to the transmission assembly 500 close to the side wall of the housing 100. The drive assembly 400 drives the transmission assembly 500 to rotate, and rotates the self-cleaning assembly 300.

[0122] Since transmission assemblies 500 are respectively provided at both ends of the two self-cleaning assemblies 300, it is not necessary to distinguish between left and right when attaching the self-cleaning assembly 300 to the housing 100, which is advantageous for improving the attachment efficiency of the self-cleaning assembly 300.

[0123] In some embodiments, as shown in FIG. 27, the drive assembly 400 further includes a housing portion 63 and a bending portion 64. The housing portion 63 is connected to the housing 100. The bending portion 64 is provided on the side of the housing portion 63 along the width direction of the housing 100, and the free end of the bending portion 64 extends along the length direction of the housing 100 toward the second base 51. The bending portion 64, the housing portion 63, and the second base 51 define an accommodation space, and the first drive motor 61 and the second drive motor 62 are provided in the said accommodation space. In this way, it is advantageous for reducing the entry of moisture and dust in the air into the said accommodation space, avoiding damage to the first drive motor 61 and the second drive motor 62, and extending the service life of the drive assembly 400.

[0124] In some embodiments, as shown in FIGS. 26 and 27, the second base 51 further includes two end caps 514 and a connecting plate 516. The two end caps 514 are respectively provided at both ends along the length direction of the housing 100 of the second base 51. The connecting plate 516 connects the two end caps 514 and is located on the side away from the sixth plate 13 of the two end caps. The connecting plate 516 is provided with a gripping portion 5161, and the gripping portion 5161 is provided at the top of the connecting plate 516. As shown in FIG. 28, the gripping portion 5161 is provided with a plurality of concave grooves, and the concave grooves are recessed toward the second dust collection box 55 along the height direction of the housing 100. The plurality of concave grooves are continuously provided on the connecting plate 516 along the length direction of the housing 100. In this way, it is advantageous for the user to grip the self-cleaning assembly 300 when detaching the self-cleaning assembly 300, and the assembly efficiency of the self-cleaning assembly 300 is improved.

[0125] In some embodiments, as shown in FIGS. 26 and 27, the second base 51 further includes a base front cover 513. The base front cover 513 is provided on the front side of the housing 100 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.

[0126] The base front cover 513 is configured to open and close the front side of the cleaning cavity 56. In this way, it is advantageous to realize the cleaning of the third cleaning brush 542 in the cleaning cavity 56, improve the operating efficiency of the third cleaning brush 542, and when the components in the self-cleaning assembly 300 fail, the components in the self-cleaning assembly 300 can be maintained through the base front cover 513. Furthermore, it is advantageous for the installation and removal of the components (such as the fourth reel 53, the third reel 52, the third cleaning brush 542, etc.) in the self-cleaning assembly 300.

[0127] For example, as the self-cleaning assembly 300 operates for a long time, the ability of the third cleaning brush 542 to remove foreign matter on the filter 210 decreases. When it is necessary to clean the third cleaning brush 542, by opening the base front cover 513, cleaning of the third cleaning brush 542 in the cleaning cavity 56 can be realized.

[0128] In some embodiments, as shown in FIG. 26, the base front cover 513 includes a rotating shaft 5131. The rotating shaft 5131 is provided at both ends along the length direction of the housing 100 of the base front cover 513. The base body 511A further includes a rotating shaft hole, and the rotating shaft hole is provided on the base body 511A. The rotating shaft 5131 is fitted and engaged with the rotating shaft hole to realize the rotational connection between the base front cover 513 and the base body 511A. In this way, when the base front cover 513 opens, the lower side of the base front cover 513 is inverted upward, realizing the opening of the front side of the cleaning cavity 56.

[0129] In some embodiments, as shown in FIGS. 25 and 26, the cleaning brush assembly 54 further includes at least one second position limiting portion 546. The at least one second position limiting portion 546 is provided at one end along the length direction of the housing 100 of the cleaning brush base 541. For example, the at least one second position limiting portion 546 includes one second position limiting portion 546, and one second position limiting portion 546 is provided at one end along the length direction of the housing 100 of the fourth mounting portion 5412. For example, the at least one second position limiting portion 546 includes two second position limiting portions 546, and the two second position limiting portions 546 are respectively provided at both ends along the length direction of the housing 100 of the fourth mounting portion 5412.

[0130] As shown in FIG. 28, the cleaning brush assembly 54 further includes a stopper portion 547. The stopper portion 547 is provided on the inner wall of the cleaning cavity 56.

[0131] The second position limiting part 546 is configured to contact the stopper part 547 to limit the rotation angle of the cleaning brush assembly 54. When the cleaning brush assembly 54 operates and the second position limiting part 546 contacts the stopper part 547, the third cleaning brush 542 contacts the third reel 52, and sweeps foreign matter on the filter 210 at the contact. Providing the second position limiting part 546 and the stopper part 547 on the cleaning brush assembly 54 is advantageous for limiting the rotation angle of the cleaning brush assembly 54, enabling the third cleaning brush 542 to accurately contact the third reel 52 under the action of the cleaning brush base 541, realizing the cleaning of the filter 210, and reducing the possibility of offset when the third cleaning brush 542 contacts the filter 210.

[0132] For example, at least one second position limiting part 546 includes a first position limiting protrusion 5461 and a second position limiting protrusion 5462. The first position limiting protrusion 5461 and the second position limiting protrusion 5462 are provided at the end of the housing 100 of the fourth mounting part 5412 along the length direction, and are symmetrically provided along the radial direction of the fourth mounting part 5412.

[0133] When the second position limiting part 546 is configured to rotate to the first position, the first position limiting protrusion 5461 contacts the stopper part 547, and the third cleaning brush 542 does not contact the third reel 52. Also, when the second position limiting part 546 is configured to rotate to the second position, the second position limiting protrusion 5462 contacts the stopper part 547, and the third cleaning brush 542 contacts the third reel 52.

[0134] For example, when the cleaning brush assembly 54 rotates along the clockwise direction and the second position limiting part 546 rotates to the first position, the first position limiting protrusion 5461 contacts the stopper part 547, the stopper part 547 restricts the continuous rotation of the second position limiting part 546, the third cleaning brush 542 does not contact the third reel 52, the first position limiting protrusion 5461 is located below the second position limiting protrusion 5462, and the third cleaning brush 542 is located below the central axis of the cleaning brush base 541.

[0135] When the cleaning brush assembly 54 rotates along the counterclockwise direction and the second position limiting part 546 rotates to the second position, the second position limiting protrusion 5462 abuts against the stopper part 547. The stopper part 547 restricts the second position limiting part 546 from continuing to rotate. The third cleaning brush 542 abuts against the third reel 52 and cleans the foreign matters on the filter 210 in the abutment.

[0136] The abutment between the second position limiting protrusion 5462 and the stopper part 547 is advantageous for making the third cleaning brush 542 abut against the third reel 52 and avoiding the reduction of the cleaning effect of the third cleaning brush 542 due to the displacement between the third cleaning brush 542 and the filter 210 under the action of inertia.

[0137] In some embodiments, as shown in FIG. 28, the stopper part 547 includes a first stopper surface 5471 and a second stopper surface 5472. When the second position limiting part 546 rotates to the first position, the first position limiting protrusion 5461 abuts against the first stopper surface 5471, and the third cleaning brush 542 does not contact the third reel 52. When the second position limiting part 546 rotates to the second position, the second position limiting protrusion 5462 abuts against the second stopper surface 5472, and the third cleaning brush 542 abuts against the third reel 52 to remove the foreign matters on the filter 210.

[0138] 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 sixth plate 13 along the thickness direction of the housing 100. The other end of the second stopper surface 5472 extends obliquely upward in a direction approaching the sixth plate 13 along the thickness direction of the housing 100.

[0139] For example, when the cleaning brush base 541 rotates along the clockwise direction and the second position limiting part 546 rotates to the first position, the first position limiting protrusion 5461 abuts against the first stopper surface 5471. The first stopper surface 5471 restricts the continuous rotation of the first position limiting protrusion 5461. The third cleaning brush 542 does not contact the third reel 52. The first position limiting protrusion 5461 is located below the second position limiting protrusion 5462, and the third cleaning brush 542 is located below the central axis of the cleaning brush base 541.

[0140] During the process that the cleaning brush base 541 rotates along the counterclockwise direction and the second position limiting part 546 rotates from the first position to the second position, the first position limiting protrusion 5461 changes from the state of abutting against the first stopper surface 5471 to the state of separating from it. Then, the second position limiting protrusion 5462 abuts against the second stopper surface 5472, so that the third cleaning brush 542 abuts against the third reel 52 to clean the filter 210.

[0141] Thus, providing the first stopper surface 5471 and the second stopper surface 5472 on the stopper part 547 is advantageous for the abutment between the first position limiting protrusion 5461 and the second position limiting protrusion 5462 and the stopper part 547, improves the stability and reliability of the abutment between the second position limiting part 546 and the stopper part 547, and reduces the rotation error of the cleaning brush assembly 54.

[0142] In some embodiments, as shown in FIGS. 24, 26 and 27, the self-cleaning assembly 300 further includes a cleaning material 59. The cleaning material 59 is provided on the side close to the cleaning cavity 56 of the base front cover 513. For example, the cleaning material 59 and the base front cover 513 may be connected by an adhesive or an engagement structure. The cleaning material 59 is provided on the side wall of the cleaning cavity 56 opposite to the stopper part 547. When the second position limiting part 546 reciprocally rotates between the first position and the second position, the cleaning material 59 is configured to clean foreign matters on the third cleaning brush 542.

[0143] For example, the stopper portion 547 is provided on the rear wall of the cleaning cavity 56, and the cleaning material 59 is provided on the front wall of the cleaning cavity 56. When there is a lot of foreign matter on the filter 210 and it is necessary to clean the filter 210, in the process of the second position limiting portion 546 rotating from the first position to the second position, the third cleaning brush 542 abuts against the third reel 52 to clean the filter 210. In the process of the second position limiting portion 546 rotating from the first position to the second position, the cleaning material 59 contacts the third cleaning brush 542 to clean the foreign matter on the third cleaning brush 542, and the third cleaning brush 542 can be made in a relatively clean state.

[0144] In this way, when the second position limiting protrusion 5462 abuts against the stopper portion 547 again, the third cleaning brush 542 cleaned by the cleaning material 59 can clean the foreign matter on the filter 210 better, and the cleaning effect of the cleaning brush assembly 54 on the filter 210 can be improved.

[0145] In some embodiments, as shown in FIGS. 24 and 26, the base front cover 513 further includes an avoidance section 5132 and an extending section 5133. The avoidance section 5132 is located between the two end covers 514, and the avoidance section 5132 protrudes in a direction away from the central axis of the third cleaning brush 542. The rotating shaft 5131 is connected to the side of the avoidance section 5132 away from the third cleaning brush 542. The extending section 5133 extends along the height direction of the housing 100. The upper end of the extending section 5133 is connected to the lower end of the avoidance section 5132, and the lower end of the extending section 5133 fits and engages with the second dust collection box 55.

[0146] The base front cover 513 is part of the cleaning cavity 56 and is configured to form a seal for the cleaning cavity 56 on the front side of the cleaning cavity 56. The avoidance section 5132 is located above the extending section 5133, and in the thickness direction of the housing 100, the avoidance section 5132 faces the third cleaning brush 542. The rotation axis 5131 is provided on the side away from the third cleaning brush 542 of the avoidance section 5132. When the base front cover 513 fits and engages with the base main body 511A, one end of the extending section 5133 that is away from the avoidance section 5132 along the height direction of the housing 100 fits and engages with the upper part of the second dust collection box 55. That is, when assembling the second dust collection box 55 to the base main body 511A, the upper part of the second dust collection box 55 fits and engages with the base front cover 513 to form a seal for the cleaning cavity 56 on the front side and the lower side of the base main body 511A.

[0147] For example, as shown in FIG. 24, the avoidance section 5132 is formed in an arc shape that protrudes in a direction away from the central axis of the third cleaning brush 542, and the center line of the avoidance section 5132 overlaps with the central axis of the third cleaning brush 542. In this way, when the base front cover 513 fits and engages with the base main body 511A, it is advantageous to avoid interference between the base front cover 513 and the third cleaning brush 542. It is also advantageous to increase the space utilization rate of the second base 51, limit the distance between the base front cover 513 and the third cleaning brush 542, and concentrate dust, particulate matter, etc. generated during the rotation process of the third cleaning brush 542 to fall into the second dust collection box 55 along the avoidance section 5132, reduce the floating dust in the cleaning cavity 56, and reduce the volume of the self-cleaning assembly 300.

[0148] In some embodiments, as shown in FIG. 24, the second base 51 further includes a base rear cover 515. The base rear cover 515 is installed between the two end covers 514, and the base rear cover 515 is installed on the rear side of the cleaning cavity 56 along the thickness direction of the housing 100. 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 is provided with a connection groove, and the connection groove is provided on the base rear cover 515. The side of the connection groove facing the cleaning brush assembly 54 is open. A sealing material is provided in the connection groove.

[0149] When the base rear cover 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 cover 515 and the third reel 52. When the base rear cover 515 is opened to open the rear side of the cleaning cavity 56, the sealing material and the third reel 52 are separated from each other. That is, when the base rear cover 515 is connected to the base main body 511A, the connection groove is provided on the side of the base main body 511A facing the third reel 52, and the sealing material is provided in the connection groove, and the sealing material is removably connected to the connection groove.

[0150] The rear side of the sealing material is located in the connection groove, and the front side of the sealing material extends out of the connection groove and abuts against the third reel 52. For example, the sealing material is a sponge foamed from polyurethane having high resilience elasticity.

[0151] In this way, providing the connection groove in the base rear cover 515 and providing the sealing material in the connection groove can make the fourth opening 563 of the cleaning cavity 56 abut against the third reel 52 through the sealing material, forming a seal for the fourth opening 563, which is advantageous for avoiding dust in the cleaning cavity 56 from flowing to the second fan assembly 30 or the indoor heat exchanger 20, and extending the service life of the indoor unit 100A.

[0152] In some embodiments, as shown in FIG. 24, the width of the fifth opening 564 is provided to be inclined from top to bottom along the height direction of the housing 100. That is, the cross-sectional area of the fifth opening 564 decreases from top to bottom along the height direction of the housing 100. The fifth opening 564 is located at the bottom of the cleaning cavity 56. The opening of the end of the fifth opening 564 close to the cleaning cavity 56 is larger, and the opening of the end of the fifth opening 564 close to the second dust collection box 55 is smaller.

[0153] When the third cleaning brush 542 cleans foreign matters on the filter 210, due to the centrifugal force generated during the rotation of the third cleaning brush 542, some foreign matters may splash onto the inner wall of the cleaning cavity 56. Making the diameter of the fifth opening 564 smaller from top to bottom along the height direction of the housing 100 is advantageous for flowing dust to the second dust collection box 55 and avoiding the accumulation of dust due to dead ends on the side walls of the cleaning cavity 56.

[0154] In some embodiments, as shown in FIG. 24, the cleaning cavity 56 further includes a first extending section 561 and a second extending section 562. The first extending section 561 and the second extending section 562 are provided at the lower part of the cleaning cavity 56. The first extending section 561 is connected to the front wall of the cleaning cavity 56, the second extending section 562 is connected to the rear wall of the cleaning cavity 56, and the fifth opening 564 is defined between the first extending section 561 and the second extending section 564. The distance between the first extending section 561 and the second extending section 562 decreases from top to bottom along the height direction of the housing 100.

[0155] For example, one end of the first extending section 561 is connected to the bottom of the front wall of the cleaning cavity 56 and is located below the third cleaning brush 542. The other end of the first extending section 561 extends obliquely towards the second dust collection box 55. One end of the second extending section 562 is connected to the bottom of the rear wall of the cleaning cavity 56 and is located below the third cleaning brush 542. The other end of the second extending section 562 extends obliquely towards the second dust collection box 55.

[0156] The first extending section 561 and the second extending section 562 extend obliquely in a direction approaching each other. That is, the other ends of the first extending section 561 and the second extending section 562 extend obliquely toward the center of the second dust collection box 55 at the same time, so that the first extending section 561 and the second extending section 562 are configured as a funnel-shaped fifth opening 564.

[0157] Also, the other ends of the first extending section 561 and the second extending section 562 are flush with the bottom of the cleaning cavity 56, so as to avoid interference of the first extending section 561 and the second extending section 562 with the attachment of the second dust collection box 55.

[0158] In this way, the distance between the first extending section 561 and the second extending section 562 decreasing from top to bottom along the height direction of the housing 100 is advantageous for dropping the foreign matter swept away by the third cleaning brush 542 into the second dust collection box 55, reducing the possibility of the foreign matter accumulating in the cleaning cavity 56 or the fifth opening 564, and reducing the risk of the foreign matter falling into areas other than the second dust collection box 55. Furthermore, the whole of the first extending section 561 and the second extending section 562 is located below the third cleaning brush 542, which is advantageous for guiding the foreign matter cleaned from the filter 210 to fall into the second dust collection box 55 and avoiding the accumulation of the foreign matter in the cleaning cavity 56.

[0159] In some embodiments, as shown in FIGS. 24 and 26, the self-cleaning assembly 300 further includes an insertion part 58. The insertion part 58 is provided on the connection plate 516 and may move along the length direction of the housing 100 with respect to the connection plate 516. When the self-cleaning assembly 300 is attached to the housing 100, the insertion part 58 moves along the length direction of the housing 100 until a part extends out from the end of the second base 51, and fits and engages with the housing 100 to realize the attachment of the self-cleaning assembly 300. When it is necessary to remove the self-cleaning assembly 300, the insertion part 58 is moved so that the insertion part 58 moves toward the center of the second base 51 along the length direction of the housing 100, separating the insertion part 58 from the housing 100, and realizing the removal of the self-cleaning assembly 300 from the housing 100.

[0160] Providing the insertion part 58 in the self-cleaning assembly 300 is advantageous for detaching the self-cleaning assembly 300 and improves the efficiency of detaching the self-cleaning assembly 300.

[0161] In some embodiments, as shown in FIG. 37, the controller 80 refers to a device that can generate an operation control signal according to an instruction operation code and a timing signal and instruct the air conditioner 1 to execute a control instruction. In some embodiments, the controller 80 is coupled to the outdoor unit 900, the indoor unit 100A, the housing 100, the filter 210, and the self-cleaning assembly 300, and is configured to control the operation of each component, operate each component in the air conditioner 1, and realize each preset function of the air conditioner 1.

[0162] For example, when it is determined that the power supply of the air conditioner 1 is turned on and startup and operation are being performed, the controller 80 is configured to obtain the continuous stop time within the current cleaning cycle of the air conditioner 1. When it is determined that the continuous stop time is greater than a first set time threshold value set in advance, it is configured to determine whether the first set condition is satisfied. When it is determined that the first set condition is satisfied, it is configured to control the air conditioner 1 to stop and control the self-cleaning assembly 300 to execute the automatic cleaning function. After the execution of the automatic cleaning function is completed, it is configured to control the air conditioner 1 to enter the next cleaning cycle.

[0163] In some embodiments of the present disclosure, a control method for the air conditioner 1 is provided, and the method is applied to the controller 80. As shown in FIG. 29, in some embodiments, the control method includes steps S10 to S15.

[0164] S10, Turn on the power supply of the air conditioner 1 and perform startup and operation.

[0165] S11, Obtain the continuous stop time within the current cleaning cycle of the air conditioner 1.

[0166] In some embodiments, the time required for the self-cleaning assembly 300 to execute two consecutive automatic cleaning functions is taken as one cleaning cycle.

[0167] S12, Determine whether the continuous stop time toff is greater than a first set time threshold value t1 set in advance. If it is "YES", execute S13. If it is "NO", continue to execute S11.

[0168] After the power supply of the air conditioner 1 is turned on and startup and operation are performed, it enters the first cleaning cycle. The controller 80 obtains and statistically processes the operation state information of the air conditioner 1, and determines whether the operation state information satisfies the first set condition.

[0169] In some embodiments, the operating condition information of the air conditioner 1 includes the continuous operation time ton, the continuous stop time toff, the cumulative operation time ton add, and the cumulative stop time toff add of the air conditioner 1. However, it may further include information such as the operating frequency, the operating speed, or the operating speed of the indoor fan of the compressor of the air conditioner 1.

[0170] Note that the continuous operation time ton is the continuous operation time of one time with the smallest difference from the current time, the continuous stop time toff is the continuous shutdown time with the smallest difference from the current time, and the cumulative operation time ton add is the cumulative time when startup and operation are performed within the current cleaning cycle.

[0171] For example, after the air conditioner 1 enters the current cleaning cycle, it operates continuously for 8 hours, stops for 3 hours under the control of the user's remote control, and then starts and operates for 12 hours again. In this case, the continuous operation time ton is 12 hours, the continuous stop time toff is 3 hours, and the cumulative operation time ton add is 8 + 12 = 20 hours.

[0172] In some embodiments, the operating state information of the air conditioner 1 includes the continuous stop time toff. In this case, a first set time threshold t1 is set in advance. The first set time threshold t1 is used to characterize the time when the air conditioner 1 is in the stopped state.

[0173] When it is determined that the continuous stop time toff is greater than the first set time threshold t1, that is, toff > t1, it indicates that the time when the air conditioner 1 is in the stopped state is too long. In this case, the controller 80 determines that the air conditioner 1 satisfies the self-cleaning condition.

[0174] Note that the first set time threshold t1 is a preset value. In some embodiments, the first set time threshold t1 is greater than 72 hours. For example, the first set time threshold t1 may be set to 7 days, that is, t1 = 7 × 24 hours = 168 hours.

[0175] Judge whether the first set condition is satisfied. If it is "YES", execute S14. If it is "NO", continue to execute S13.

[0176] Note that the first set condition is a preset self-cleaning condition. When it is confirmed that the first set condition is not satisfied, the operation mode of the air conditioner 1 is controlled not to change, and the self-cleaning assembly 300 is controlled to be in a closed state.

[0177] In some embodiments, as shown in FIG. 30, the first set condition includes that the continuous operation time ton of the air conditioner 1 is greater than the second set time threshold t2, that is, ton>t2. In this case, S13 includes S131.

[0178] S131: Judge whether the continuous operation time ton is greater than the second set time threshold t2. If it is "YES", execute S14. If it is "NO", continue to execute S131.

[0179] Note that the second set time threshold t2 is a preset value. In some embodiments, the second preset time threshold t2 takes a value in the range of [5 min, 60 min]. For example, t2 may be set to 15 min.

[0180] In some embodiments, as shown in FIG. 31, S13 includes S132 to S1322.

[0181] S132: Judge the operation mode of the air conditioner 1. If it is determined that the air conditioner 1 is operating in the cooling mode, execute S1321. If it is determined that the air conditioner 1 is operating in the heating mode, execute S1322.

[0182] S1321: Judge whether the difference between the first target indoor temperature T2 and the indoor temperature T1 is greater than the set temperature difference ΔT1. If it is "YES", execute S14. If it is "NO", continue to execute S1321.

[0183] When the air conditioner 1 is operating in the cooling mode, the first set condition includes that the current indoor temperature T1 is less than a preset first target indoor temperature T2, and the difference between the first target indoor temperature T2 and the indoor temperature T1 is greater than a set temperature difference ΔT1, that is, it satisfies T2 - T1 > ΔT1.

[0184] S1322, determine whether the difference between the indoor temperature T1 and the second target indoor temperature T3 is greater than the set temperature difference ΔT1. If it is "YES", execute S14. If it is "NO", continue to execute S1322.

[0185] In some other embodiments, as shown in FIG. 31, when the air conditioner 1 is operating in the heating mode, the first set condition includes that the current indoor temperature T1 is greater than a preset second target indoor temperature T3, and the difference between the indoor temperature T1 and the second target indoor temperature T3 is greater than the set temperature difference ΔT1, that is, it satisfies T1 - T3 > ΔT1.

[0186] Note that the set temperature difference ΔT1 is a preset value, and ΔT1 > 0. For example, ΔT1 may be set to 2°C.

[0187] As shown in FIG. 32, S13 includes S133 to S1332.

[0188] S133, determine the operation mode of the air conditioner 1. If it is determined that the air conditioner 1 is operating in the cooling mode, execute S1331. If it is determined that the air conditioner 1 is operating in the heating mode, execute S1332.

[0189] S1331, determine whether the current indoor temperature T1 is less than a preset first default indoor temperature T4, and whether the continuous operation time ton is greater than a preset third set time threshold t3. If it is "YES", execute S14. If it is "NO", continue to execute S1331.

[0190] When the air conditioner 1 is operating in the cooling mode, the first set condition includes that the current indoor temperature T1 is less than a preset first default indoor temperature T4, that is, T1 < T4, and the continuous operation time ton of the air conditioner 1 is greater than a preset third set time threshold t3, that is, ton > t3.

[0191] S1332, determine whether the current indoor temperature T1 is greater than a preset second default indoor temperature T5, and whether the continuous operation time ton of the air conditioner 1 is greater than a preset third set time threshold t3.

[0192] When the air conditioner 1 is operating in the heating mode, the first set condition includes that the current indoor temperature T1 is greater than a preset second default indoor temperature T5, that is, T1 > T5, and the continuous operation time ton of the air conditioner 1 is greater than a preset third set time threshold t3, that is, ton > t3.

[0193] Note that the first default indoor temperature T4 and the second default indoor temperature T5 are environmental temperature values required by the user, and the first default indoor temperature T4 and the second default indoor temperature T5 may be set to T4 = T5 = 24°C.

[0194] In this way, before stopping the operation of the air conditioner 1 and starting the self-cleaning assembly 300 to control the self-cleaning of the filter 210, the indoor temperature can reach a preset required temperature.

[0195] S14, control the air conditioner 1 to stop, and control the self-cleaning assembly 300 to execute the automatic cleaning function.

[0196] When the controller 80 determines that the air conditioner 1 satisfies the first set condition, it controls the air conditioner 1 to stop operating, starts the self-cleaning assembly 300 to execute the automatic cleaning function, and controls the self-cleaning of the filter 210.

[0197] After the execution of the automatic cleaning function is completed, the air conditioner 1 is controlled to enter the next cleaning cycle.

[0198] After obtaining that the execution of the automatic cleaning function is completed, the controller 80 restarts the air conditioner 1, controls it to continue operating according to the operating state before cleaning, and the controller 80 clears the operating state information of the current cycle and proceeds to the statistics and control of the next cleaning cycle.

[0199] Note that the time required to execute different cleaning cycles may be the same or different.

[0200] Thus, according to the air conditioner 1 according to some embodiments of the present disclosure, the continuous stop time toff of the air conditioner 1 is automatically obtained, and by determining whether the air conditioner 1 satisfies the self-cleaning condition, self-cleaning of the filter 210 is realized, avoiding the operation of the user manually removing and cleaning the filter 210, which is advantageous for improving the cleaning efficiency of the filter 210. Furthermore, it is also possible to avoid the problem that dust accumulates on the filter 210 due to the user not cleaning the filter 210 in a timely manner, affecting the blowing air volume of the air conditioner 1, and ultimately affecting the operating performance of the air conditioner 1.

[0201] Also, when the air conditioner 1 is started and operated continuously for a certain period of time and the filter 210 is not cleaned, after the user restarts the air conditioner 1, the air conditioner 1 is operated until it satisfies the first set condition, that is, first cools or heats the room, and after the indoor temperature reaches the preset temperature, the air conditioner 1 is controlled to stop, and the self-cleaning assembly 300 is started to self-clean the filter 210, thereby minimizing the impact on the requirement for the indoor air temperature.

[0202] In some embodiments, after S12 and before S13, the controller is configured to perform at least one of controlling the compressor to operate at a set operating frequency and controlling the outdoor fan to operate at a set operating speed.

[0203] For example, the set operating frequency of the compressor may be its maximum operating frequency. The set operating speed of the outdoor fan may be its maximum operating speed.

[0204] In this way, after the continuous stop time toff of the air conditioner 1 becomes greater than the first set time threshold t1, the user's cooling or heating needs can be quickly met, and the subsequent stop of the air conditioner 1 can avoid the problem that the difference between the indoor temperature generated when the self-cleaning assembly 300 executes the self-cleaning function and the target temperature set by the user is large.

[0205] In some embodiments, as shown in FIG. 33, S10 may include S101 and S102.

[0206] S101, turn on the power of the air conditioner 1.

[0207] S102, start and operate the air conditioner 1.

[0208] In some embodiments, S14 may include S141 and S142.

[0209] S141, control the air conditioner 1 to stop.

[0210] S142, control the self-cleaning assembly 300 to execute the self-cleaning function.

[0211] In some embodiments, when the operating state information of the air conditioner 1 acquired by the controller 80 includes the cumulative operating time ton add, after S101, the control method further includes S21 to S23.

[0212] S21. Obtain the cumulative operation time within the current cleaning cycle of the air conditioner 1.

[0213] S22. Determine whether the cumulative operation time ton add is greater than the fourth set time threshold t4 and less than the fifth set time threshold t5. If "YES", execute S23; if "NO", continue to execute S21.

[0214] S23. Determine whether the air conditioner 1 is in a stopped state. If "YES", execute S142; if "NO", continue to execute S21.

[0215] Note that the fourth set time threshold t4 and the fifth set time threshold t5 are preset values. For example, the fourth set time threshold t4 and the fifth set time threshold t5 take values in the range of [12h, 72h], and the fifth set time threshold t5 is greater than the fourth set time threshold t4.

[0216] For example, set the fourth set time threshold t4 to 24 hours and the fifth set time threshold t5 to 32 hours. Within the current cleaning cycle, the user controls the startup of the air conditioner 1. The air conditioner 1 operates continuously for 8 hours, then stops operating for n hours, then restarts and operates continuously for 12 hours, then stops operating for n hours, and then restarts and operates continuously for 6 hours before shutting down. In this case, the cumulative operation time ton add = 8 hours + 12 hours + 6 hours = 26 hours obtained by the controller 80 satisfies t4 < ton add < t5, and since the air conditioner 1 is currently in a stopped state, it is determined that the preset self-cleaning condition is satisfied. The controller 80 controls the self-cleaning assembly 300 to start and operate to self-clean the filter 210. Here, n > 0.

[0217] In some embodiments, as shown in FIG. 34, when executing S22, if it is determined that the cumulative operation time ton add is outside the range of (t4, t5), the control method further includes S31.

[0218] S31. Determine whether the cumulative operation time ton_add is greater than or equal to the fifth set time threshold t5. If "YES", execute S141; if "NO", continue to execute S21.

[0219] For example, set the fifth set time threshold t5 to 32 hours. Within the current cleaning cycle, the user controls the startup of the air conditioner 1. The air conditioner 1 operates continuously for 8 hours, then stops operating for n hours, then restarts and operates continuously for 12 hours, then stops operating for n hours, and then restarts and operates continuously for 12 hours or more. In this case, the cumulative operation time ton_add = 8 hours + 12 hours + 12 hours = 32 hours obtained by the controller 80. Since ton_add ≥ t5 is satisfied, it is determined that the preset self-cleaning condition is met, and the self-cleaning assembly 300 is started and operated to control the self-cleaning of the filter 210.

[0220] In this way, it can be ensured that the filter 210 is cleaned under the condition that the cumulative operation time of the air conditioner 1 satisfies t4 < ton_add < t5 and the air conditioner 1 is shut down, and the cleanliness of the filter 210 can be guaranteed.

[0221] In some embodiments, as shown in FIG. 35, when the operation state information of the air conditioner 1 acquired by the controller 80 includes the continuous operation time ton, after S101, the control method further includes S41 to S42.

[0222] S41. Obtain the continuous operation time ton within the current cleaning cycle of the air conditioner 1.

[0223] S42. Determine whether the continuous operation time ton is greater than a preset sixth set time threshold t6. If "YES", execute S141; if "NO", continue to execute S41.

[0224] Note that the sixth set time threshold t6 is a preset value. The sixth set time threshold t6 is greater than the second set time threshold t2 and the third set time threshold t3, that is, t6 > t2 and t6 > t3. The value of the sixth set time threshold t6 may be 12 to 72 hours.

[0225] For example, the sixth set time threshold t6 is set to 24 hours. During the current cleaning cycle, the user controls the startup of the air conditioner 1, and the air conditioner 1 operates continuously for 25 hours. The current continuous operation time ton = 25 hours obtained by the controller 80's statistics is greater than the sixth set time threshold t6. Therefore, it is determined that the preset self-cleaning condition is satisfied, and the self-cleaning assembly 300 is started and controlled to operate to self-clean the filter 210.

[0226] After that, when the air conditioner 1 operates continuously for 24 hours again after startup, the air conditioner 1 is controlled to stop again, and the self-cleaning assembly 300 is started and controlled to self-clean the filter 210. After the execution of the automatic cleaning function is completed, the air conditioner 1 is restarted and operated to control the air conditioner 1 to return to the operating state before cleaning.

[0227] As shown in FIG. 36, before the self-cleaning assembly 300 is controlled to execute the automatic cleaning function (that is, step S14), the control method further includes S61.

[0228] S61, determine whether the second set condition for permitting the execution of the automatic cleaning function is satisfied. If it is "YES", execute step S14. If it is "NO", continue to execute step S61.

[0229] In some embodiments, the second set condition includes at least one of determining whether a shutdown control command is received, determining whether the current time is outside the set time zone by the user, and determining whether the current indoor light intensity is greater than the set light intensity threshold.

[0230] For example, when it is determined that the first set of conditions is met and the air conditioner 1 is determined to be in the startup and operating state, but the controller 80 does not receive a shutdown control command input by the user, the current operating state of the air conditioner 1 is maintained without change, and the self-cleaning assembly 300 is maintained in the closed state. When it is determined that the controller 80 has received a shutdown control command input by the user, the air conditioner 1 is controlled to stop, the self-cleaning assembly 300 is activated and operated, and the filter 210 is controlled to perform self-cleaning.

[0231] Also, for example, when it is determined that the current time is outside the set time zone by the user, for example, when the user sets the time zone to 23:00 to 7:00, and at this time, when it is determined that the current time is within the time zone of 23:00 to 7:00, the original state of the air conditioner 1 is maintained without change, and the self-cleaning assembly 300 is maintained in the closed state to avoid the noise generated during self-cleaning from affecting the user's needs. When the time reaches 7:00 and it is determined that the air conditioner 1 is in the startup state, the air conditioner 1 is controlled to stop, the self-cleaning assembly 300 is activated and operated, and the filter 210 is controlled to perform self-cleaning.

[0232] Also, for example, as shown in FIG. 37, the air conditioner 1 further includes a light intensity detection assembly 90. The light intensity detection assembly 90 is provided on the housing of the air conditioner 1, configured to detect the current indoor light intensity, and the light intensity detection assembly 90 is coupled to the controller 80. When it is determined that the current indoor light intensity is greater than the set light intensity threshold value, it indicates that the current indoor light is strong. At this time, if the air conditioner 1 is in the startup state, the air conditioner 1 is controlled to stop, the self-cleaning assembly 300 is activated and operated, and the filter 210 is controlled to perform self-cleaning. When it is determined that the current indoor light intensity is less than or equal to the set light intensity threshold value, it indicates that the current indoor light is weak. At this time, the current operating state of the air conditioner 1 is maintained without change, and the self-cleaning assembly 300 is maintained in the closed state.

[0233] In this way, after the air conditioner 1 satisfies the first set of conditions and before starting the self-cleaning assembly 300 to clean the filter 210, it is also necessary to satisfy the second set of conditions, and it can meet the living needs of the user.

[0234] It should be understood by those skilled in the art that the scope of the disclosure of the present invention is not limited to the above specific embodiments, and 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 present disclosure is limited by the claims.

Claims

1. An air conditioner, comprising: an outdoor unit; an indoor unit connected to the outdoor unit, wherein the indoor unit comprises a housing having a suction port; a filter covering the suction port; a self-cleaning assembly configured to perform an automatic cleaning function to remove foreign matter on the filter; and a controller, wherein the controller acquires a continuous stop time within the current cleaning cycle of the air conditioner when it is determined that the power of the air conditioner is turned on and startup and operation are being performed; when it is determined that the continuous stop time is greater than a first set time threshold, determines whether a first set condition is satisfied; when it is determined that the first set condition is satisfied, controls the air conditioner to stop, controls the self-cleaning assembly to perform the automatic cleaning function, and after the execution of the automatic cleaning function ends, controls the air conditioner to enter the next cleaning cycle. Air conditioner.

2. The first set condition includes that after startup and operation of the air conditioner are performed, the acquired continuous operation time is greater than a second set time threshold. The air conditioner according to claim 1.

3. The first set condition when the air conditioner is operating in the cooling mode, the current indoor temperature is lower than a preset first target indoor temperature, and the difference between the first target indoor temperature and the indoor temperature is greater than a set temperature difference; when the air conditioner is operating in the heating mode, the current indoor temperature is higher than a preset second target indoor temperature, and the difference between the indoor temperature and the second target indoor temperature is greater than a set temperature difference. The air conditioner according to claim 1.

4. The first set condition when the air conditioner is operating in the cooling mode, the current indoor temperature is lower than a preset first default indoor temperature, and the continuous operation time of the air conditioner is greater than a third set time threshold; when the air conditioner is operating in the heating mode, the current indoor temperature is higher than a preset second default indoor temperature, and the continuous operation time of the air conditioner is greater than a third set time threshold. The air conditioner according to claim 1.

5. The controller further acquires the cumulative operation time within the current cleaning cycle of the air conditioner after the power of the air conditioner is turned on. When it is determined that the cumulative operation time is greater than the fourth set time threshold and less than or equal to the fifth set time threshold, and the air conditioner is in a stopped state, the self-cleaning assembly is controlled to execute the automatic cleaning function. The fifth set time threshold is greater than the fourth set time threshold. The air conditioner according to any one of claims 1 to 4.

6. The controller further When the cumulative operation time is greater than or equal to the fifth set time threshold, the air conditioner is controlled to stop, and the self-cleaning assembly is controlled to execute the automatic cleaning function. The air conditioner according to claim 5.

7. The controller further After the air conditioner is powered on, the continuous operation time within the current cleaning cycle of the air conditioner is obtained. When it is determined that the continuous operation time is greater than the sixth set time threshold, the air conditioner is controlled to stop, and the self-cleaning assembly is controlled to execute the automatic cleaning function. The air conditioner according to any one of claims 1 to 4.

8. The controller further When it is determined that the air conditioner satisfies the second set condition for permitting the execution of the automatic cleaning function, the self-cleaning assembly is controlled to execute the automatic cleaning function. The air conditioner according to any one of claims 1 to 4.

9. The air conditioner further includes a light intensity detection assembly. The second set condition is The controller receives a shutdown control command, The current time is outside the set time zone, The current indoor light intensity is greater than the set light intensity threshold, and includes at least one of them. The air conditioner according to claim 8.

10. A control method for an air conditioner, The air conditioner is An outdoor unit, An indoor unit connected to the outdoor unit, and includes. The indoor unit is A housing having a suction port, A filter covering the suction port, A self-cleaning assembly configured to execute an automatic cleaning function to remove foreign matter on the filter, The outdoor unit, the indoor unit, the housing, the filter, and a controller coupled to the self-cleaning assembly, and includes. The control method is When it is determined that the power supply of the air conditioner is turned on and startup and operation are being performed, obtain the continuous stop time within the current cleaning cycle of the air conditioner. When it is determined that the continuous stop time is greater than a first set time threshold, determine whether a first set condition is satisfied. When it is determined that the first set condition is satisfied, control the air conditioner to stop, control the self-cleaning assembly to execute the automatic cleaning function, and after the execution of the automatic cleaning function ends, control the air conditioner to enter the next cleaning cycle. The first set condition includes that after the air conditioner is started and operated, the obtained continuous operation time is greater than a second set time threshold. A control method for an air conditioner.

11. The first set condition is when the air conditioner is operating in the cooling mode, the current indoor temperature is lower than a preset first target indoor temperature, and the difference between the first target indoor temperature and the indoor temperature is greater than a set temperature difference; when the air conditioner is operating in the heating mode, the current indoor temperature is higher than a preset second target indoor temperature, and the difference between the indoor temperature and the second target indoor temperature is greater than a set temperature difference. The control method according to claim 10.

12. The first set condition is when the air conditioner is operating in the cooling mode, the current indoor temperature is lower than a preset first default indoor temperature, and the continuous operation time of the air conditioner is greater than a third set time threshold; when the air conditioner is operating in the heating mode, the current indoor temperature is higher than a preset second default indoor temperature, and the continuous operation time of the air conditioner is greater than a third set time threshold. The control method according to claim 10.

13. The control method is after the power supply of the air conditioner is turned on, obtain the cumulative operation time within the current cleaning cycle of the air conditioner; when it is determined that the cumulative operation time is greater than a fourth set time threshold, less than or equal to a fifth set time threshold, and the air conditioner is in a stopped state, further control the self-cleaning assembly to execute the automatic cleaning function. The fifth set time threshold is greater than the fourth set time threshold. The control method according to any one of claims 10 to 12.

Images