air conditioner

Abstract

The present invention relates to the technical field of air conditioners, and specifically provides an air conditioner. In order to solve the problem of poor cleaning effect of the dust filter of the air conditioner in the prior art, the air conditioner of the present invention includes an air conditioner cover and a water tank assembly, wherein the dust filter is arranged in the air conditioner cover, and the water tank assembly includes a fixedly arranged water tank shell, a drum and a cleaning roller, and the drum and the cleaning roller are both rotatably arranged in the water tank shell; a first transmission structure is arranged on the dust filter, and a second transmission structure cooperating with the first transmission structure is arranged on the air conditioner cover, so that the dust filter can move back and forth between the air conditioner cover and the drum; the drum is arranged to be able to wind the dust filter on the outer surface of the drum, and the end of the cleaning roller contacts the outer surface of the dust filter; a water inlet pipe is arranged in the drum, and a water permeable hole is arranged on the drum. The present invention flushes the dust and lint on the dust filter from the inside to the outside through the high-pressure water flow inside the drum, and cooperates with the cleaning roller to brush the outer surface of the dust filter.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular provides an air conditioner. Background Art

[0002] Existing wall-mounted air conditioner dust filters accumulate a lot of dust after long-term use. However, most users don't even dare to clean the air conditioner filters at home. This continuous accumulation of dust can breed bacteria, resulting in unclean air and a poor user experience. Furthermore, excessive dust on the filters increases energy consumption, reduces cooling and heating efficiency, and can easily cause the air conditioner compressor temperature to rise, causing the air conditioner to shut down and impacting normal use. Conventional air conditioner dust filters are cleaned by installing a brush inside a water tank on the air conditioner. However, dust and lint on the filter surface are firmly attached to the filter and are difficult to remove with a brush alone, resulting in poor cleaning results.

[0003] Accordingly, the art needs a new air conditioner to solve the problem of poor cleaning effect of the dust filter of the air conditioner in the prior art. Summary of the Invention

[0004] The present invention aims to solve the above technical problem, that is, to solve the problem that the dust filter of the air conditioner in the prior art has a poor cleaning effect.

[0005] In a first aspect, the present invention provides an air conditioner, comprising an air conditioner cover and a water tank assembly, wherein a dust filter is arranged in the air conditioner cover, and the water tank assembly comprises a fixedly arranged water tank shell, a drum and a cleaning roller, wherein both the drum and the cleaning roller are rotatably arranged in the water tank shell; a first transmission structure is arranged on the dust filter, and a second transmission structure cooperating with the first transmission structure is arranged on the air conditioner cover so that the dust filter can move back and forth between the air conditioner cover and the drum; the drum is arranged to be able to wind the dust filter around the outer surface of the drum, and the end of the cleaning roller contacts the outer surface of the dust filter; a water inlet pipe is arranged in the drum, and a water permeable hole is arranged on the drum.

[0006] In the preferred technical solution of the above air conditioner, the first transmission structure is a rack, the second transmission structure is a transmission gear, and the transmission gear is rotatably provided on the air conditioner cover.

[0007] In a preferred technical solution of the above air conditioner, a tooth structure capable of meshing with the rack is provided along the circumference of the drum.

[0008] In the preferred technical solution of the above air conditioner, a first guide rail groove is provided in the air conditioner cover, and the dust filter is located in the first guide rail groove.

[0009] In the preferred technical solution of the above air conditioner, a second guide rail groove is provided on the drum, the tooth structure is located in the second guide rail groove, the second guide rail groove is provided with a notch, and the dust filter enters the second guide rail groove through the notch.

[0010] In a preferred technical solution of the above air conditioner, the air conditioner further comprises a fixed water tank bracket, and the water tank housing is fixed on the water tank bracket.

[0011] In the preferred technical solution of the above air conditioner, a solenoid valve is provided on the drain pipe; and / or the water inlet pipe is connected to a water pump.

[0012] In the preferred technical solution of the above-mentioned air conditioner, a plurality of high-pressure water spray holes are provided on the water inlet pipe; and / or, the second transmission structure is connected to a first drive device; and / or, the drum is connected to a second drive device; and / or, the cleaning roller is connected to a third drive device.

[0013] In the preferred technical solution of the above-mentioned air conditioner, a plurality of rubber scrapers are axially arranged on the outer surface of the cleaning roller, and the ends of the rubber scrapers can abut against the outer surface of the dust filter; and / or, bristles are arranged on the outer surface of the cleaning roller.

[0014] Those skilled in the art will appreciate that the air conditioner of the present invention comprises an air conditioner cover and a water tank assembly, a dust filter is provided in the air conditioner cover, the water tank assembly comprises a fixedly arranged water tank shell, a drum and a cleaning roller, both the drum and the cleaning roller are rotatably arranged in the water tank shell; a first transmission structure is provided on the dust filter, and a second transmission structure cooperating with the first transmission structure is provided on the air conditioner cover so that the dust filter can move back and forth between the air conditioner cover and the drum; the drum is configured to be able to wind the dust filter around the outer surface of the drum, and the end of the cleaning roller is in contact with the outer surface of the dust filter; a water inlet pipe is provided in the drum, and a water permeable hole is provided on the drum.

[0015] When the above technical solution is adopted, when the air conditioner of the present invention cleans the dust filter, the dust filter is moved from the air conditioner housing to the drum through the cooperation structure of the first transmission structure and the second transmission structure. The drum rotates to wind the dust filter on the drum. A water inlet pipe is provided inside the drum, and a water hole is provided on the drum. High-pressure water flows through the water hole on the drum to flush the dust filter from the inside to the outside, and the end of the cleaning roller rolls and scrubs the surface of the dust filter. The air conditioner of the present invention flushes the dust, lint, etc. on the dust filter from the inside to the outside through the high-pressure water flow inside the drum, and then scrubs the outer surface of the dust filter with the cleaning roller. Compared with the prior art that cleans the dust filter from the outside to the inside, the air conditioner of the present invention makes it easier to remove dust, lint, etc., greatly improves the cleaning effect of the air conditioner dust filter, and enhances the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0017] Figure 1 is a structural diagram of an air conditioner of the present invention;

[0018] Figure 2 is a structural diagram of the water tank assembly of the present invention;

[0019] Figure 3 It is a structural diagram of the drum and the cleaning roller of the present invention;

[0020] Figure 4 It is a structural diagram of the drum of the present invention;

[0021] Figure 5 is a cross-sectional perspective structural diagram of an air conditioner of the present invention;

[0022] Figure 6 is a front structural diagram of a cross section of an air conditioner of the present invention;

[0023] Figure 7 It is a structural diagram of the air conditioner cover of the present invention;

[0024] Figure 8 It is a structural diagram of a dust filter of the present invention.

[0025] List of reference numerals:

[0026] 1. Air conditioner cover; 11. Second transmission structure; 12. First guide rail groove; 2. Water tank assembly; 21. Water tank shell; 22. Drum; 221. Water permeable hole; 222. Tooth structure; 23. Cleaning roller; 231. Rubber scraper; 24. Water inlet pipe; 241. High-pressure water spray hole; 25. Second guide rail groove; 251. Notch; 26. Drain pipe; 27. Solenoid valve; 28. Water pump; 291. Second drive unit; 292. Third drive unit; 3. Dust filter; 31. First transmission structure. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. For example, although the present application is described in detail using a wall-mounted air conditioner as an example, this is not restrictive, and the air conditioner of the present invention can also be other types of air conditioners, such as a cabinet air conditioner, a central air conditioner, etc., as long as the temperature regulating device is provided with a dust filter.

[0028] It should be noted that, in the description of the present invention, terms such as "inner" and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted" and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections; direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0030] like Figure 1 As shown, in order to solve the problem of poor cleaning effect of the dust filter of the air conditioner in the prior art, the air conditioner of the present invention includes an air conditioner cover 1 and a water tank assembly 2. Figure 2 、 Figure 3 、 Figure 5 and Figure 6A dust filter 3 is provided in the air-conditioning cover 1, and the water tank assembly 2 includes a fixed water tank shell 21, a drum 22 and a cleaning roller 23, and the drum 22 and the cleaning roller 23 are both rotatably provided in the water tank shell 21; a first transmission structure 31 is provided on the dust filter 3, and a second transmission structure 11 cooperating with the first transmission structure 31 is provided on the air-conditioning cover 1, so that the dust filter 3 can move back and forth between the air-conditioning cover 1 and the drum 22; the drum 22 is configured to be able to wind the dust filter 3 on the outer surface of the drum 22, and the end of the cleaning roller 23 is in contact with the outer surface of the dust filter 3; a water inlet pipe 24 is provided in the drum 22, and a water permeable hole 221 is provided on the drum 22.

[0031] The advantage of the above arrangement is that when the air conditioner of the present invention cleans the dust filter 3, the dust filter 3 is moved from the air conditioner housing 1 to the drum 22 via the cooperative structure of the first transmission structure 31 and the second transmission structure 11. The drum 22 rotates to wind the dust filter 3 around the drum 22. The drum 22 is provided with a water inlet pipe 24 and a water permeable hole 221. The high-pressure water flows through the water permeable hole 221 in the drum 22 to flush the dust filter 3 from the inside out, and the end of the cleaning roller 23 rolls and scrubs the surface of the dust filter 3. The air conditioner of the present invention uses the high-pressure water flow inside the drum 22 to flush dust, lint, etc. from the dust filter 3 from the inside out, and then cooperates with the cleaning roller 23 to scrub the outer surface of the dust filter 3. Compared with the prior art method of cleaning the dust filter 3 from the outside in, the air conditioner of the present invention makes it easier to remove dust, lint, etc., greatly improving the cleaning effect of the air conditioner dust filter 3 and enhancing the user experience.

[0032] In one possible implementation, refer to Figures 1 to 6 The air conditioner of the present invention includes an air conditioner cover 1 and a water tank assembly 2. A dust filter 3 is provided in the air conditioner cover 1. The water tank assembly 2 includes a water tank bracket (not shown in the figure), a water tank shell 21, a roller 22 and a cleaning roller 23. The water tank shell 21 is fixed on the water tank bracket. The water tank bracket can be fixed on the wall of the user's home, or on the air conditioner cover 1, or on other components of the air conditioner other than the air conditioner cover 1. Therefore, there is no restriction on the fixed position of the water tank bracket, or the water tank bracket can be not provided and the water tank shell 21 can be fixed directly. Those skilled in the art can set it according to their needs.

[0033] Reference Figures 3 to 8Furthermore, the drum 22 and the cleaning roller 23 are both rotatably arranged in the water tank housing 21, and a first transmission structure 31 is respectively provided on both sides of the dust filter 3. The air conditioner cover 1 is provided with a second transmission structure 11 that cooperates with the first transmission structure 31. Preferably, the first transmission structure 31 is a rack, and the second transmission structure 11 is a transmission gear. The transmission gear is connected to a first driving device, and the dust filter 3 moves on the air conditioner cover 1 through the engagement of the rack and the transmission gear; thereby, the dust filter 3 can reciprocate between the air conditioner cover 1 and the drum 22. Further, referring to Figure 7 The air conditioner housing 1 is further provided with a first guide rail groove 12, and the dust filter 3 is provided in the first guide rail groove 12 so that the dust filter 3 can move along the first guide rail groove 12. Further, the drum 22 is connected to a second driving device 291, referring to Figure 4 A tooth structure 222 that can engage with the rack is provided along the circumference of the drum 22, and a second guide groove 25 is also provided on the drum 22. The tooth structure 222 is located in the second guide groove 25. There is a gap between the drum 22 and the second guide groove 25 that can accommodate the dust filter 3. The second guide groove 25 is provided with a notch 251. When the dust filter 3 moves to the notch 251, it enters the second guide groove 25 through the notch 251, so that the dust filter 3 can be wound on the outer surface of the drum 22 and the rack on the dust filter 3 engages with the tooth structure 222 to prevent the dust filter 3 from moving with the drum 22 when the drum 22 rotates; the circumference of the drum 22 is not less than the longitudinal width of the dust filter 3, so that the dust filter 3 can be ensured to be arranged entirely on the surface of the drum 22.

[0034] Further, continue to refer to Figure 6 The outer surface of the cleaning roller 23 is provided with a plurality of rubber scrapers 231 along the axial direction. The ends of the rubber scrapers 231 can contact the outer surface of the dust filter 3 arranged on the drum 22. The cleaning roller 23 is connected to a third driving device 292; a water inlet pipe 24 is provided in the drum 22. Specifically, refer to Figure 3 and Figure 5 The water inlet pipe 24 axially passes through the drum 22 and is fixed to the water tank housing 21. The portion of the water inlet pipe 24 located inside the drum 22 is provided with a plurality of high-pressure water spray holes 241. The water inlet pipe 24 is also connected to a water pump 28, which is located outside the water tank housing 21. The drum 22 is provided with a circular water permeable hole 221. The bottom of the water tank housing 21 is provided with a drain pipe 26, which is provided with a solenoid valve 27. It should be noted that the water permeable hole 221 on the drum 22 can be circular, square, polygonal, etc., and therefore, there is no limitation on the shape of the water permeable hole 221, and those skilled in the art can determine it according to their needs.

[0035] Furthermore, the number of dust filters 3 within the air conditioner is two, and the two dust filters 3 are arranged side by side. However, this is not restrictive, and those skilled in the art can customize the structure and number of dust filters 3 as needed. Accordingly, other structures of the air conditioner are adjusted accordingly based on the structure and number of dust filters 3. In addition, the first drive device, the second drive device 291, and the third drive device 292 are all motors, but there are no restrictions on the first drive device, the second drive device 291, or the third drive device 292. They can also be other types of drive devices such as hydraulic motors, as long as they can drive components to rotate. Those skilled in the art can customize them as needed.

[0036] In another embodiment, the second transmission structure 11 and the roller 22 may not be provided with the first drive device and the second drive device 291, and the functions of this solution can be achieved by manually rotating them. Those skilled in the art can set them by themselves according to their needs, and therefore they will fall within the protection scope of this solution.

[0037] The advantage of the above arrangement is that: when the air conditioner needs to clean the dust filter 3, the first drive device is controlled to drive the transmission gear to rotate, and the rack on the dust filter 3 is meshed with the transmission gear, so that the dust filter 3 moves along the first guide groove 12 toward the drum 22. When the dust filter 3 moves to the notch 251 of the drum 22, the rack on the dust filter 3 is meshed with the tooth structure 222 on the drum 22, and the transmission gear stops rotating. The second drive device 291 is controlled to drive the drum 22 to rotate, so that the dust filter 3 is wound on the drum 22 along the second guide groove 25, and the rack and the tooth structure are meshed. 222 are all engaged, the dust filter 3 is completely wrapped around the drum 22 and firmly fixed on the drum 22, and then the water pump 28 is controlled to start, and water is supplied to the water inlet pipe 24. The high-pressure water spray hole 241 on the water inlet pipe 24 sprays the high-pressure water flow onto the drum 22, and the high-pressure water flow passes through the water permeable holes 221 on the drum 22 to flush the dust filter 3 from the inside to the outside. The third drive device 292 is turned on, and the cleaning roller 23 rotates. On the basis of the high-pressure water flow impacting the dust filter 3, the rubber scraper 231 on the cleaning roller 23 is used to brush the dust filter 3, thereby achieving a better cleaning effect.

[0038] When the water level in water tank housing 21 reaches a certain level, solenoid valve 27 opens to drain the dirty water. Furthermore, after cleaning is complete, the drum 22 can be rotated at a high speed, using centrifugal force to remove the water from the surface of the dust filter 3. The drum 22's speed is then reduced, and the drum 22 is rotated counterclockwise. The rack on the dust filter 3 cooperates with the transmission gear to return the dust filter 3 along the first guide groove 12 to the inside of the air conditioner housing 1, completing the cleaning process. The high-pressure water jet from drum 22 removes stubborn dirt from the dust filter 3, improving the cleaning effect and significantly enhancing the cleaning efficiency of the air conditioner's dust filter 3.

[0039] In one possible embodiment, the water tank assembly 2 further includes a circulating water pipe. Specifically, the drain pipe 26 is provided with two outlets, and a reversing valve is installed on the drain pipe 26 to selectively flow out of one of the outlets. One end of the circulating water pipe is connected to one of the outlets of the drain pipe 26, and the other end of the circulating water pipe is connected to the water inlet pipe 24. When the water tank assembly 2 cleans the dust filter 3, the circulating water pipe re-enters the water inlet pipe 24 after washing, thereby achieving a water circulation flushing effect and saving water. Furthermore, a filter is installed between the circulating water pipe and the water inlet pipe 24 to prevent lint in the wash water from re-entering the water inlet pipe 24 and clogging the water permeability 221 in the drum 22. Furthermore, the water tank assembly 2 also includes a water tank and a heating device. The heating device is disposed within the water tank, and a temperature sensor is also disposed within the water tank. One end of the water inlet pipe 24 passes into the drum 22, and the other end is connected to the water tank. The temperature sensor can obtain the water temperature within the water tank. When the water temperature within the water tank is low, the cleaning effect of the dust filter 3 will decrease accordingly. The heating device heats the water within the water tank, raising the temperature of the cleaning water and further improving the cleaning effect of the dust filter 3. It should be noted that the heating device can be an electric heating wire or a superconducting heating wire or other structure. The superconducting heating wire has a faster heating speed and can achieve instant heating. However, the present invention does not impose any restrictions on the structure of the heating device and the heat generation method. Those skilled in the art can set it according to their needs.

[0040] In summary, the air conditioner of the present invention uses the high-pressure water flow in the drum 22 to reversely flush the dust filter 3 from the inside to the outside, and then uses the cleaning roller 23 to roll and scrub the outer surface of the dust filter 3, so that stubborn dust and lint can be more easily removed by the water flow, thereby improving the cleaning effect of the dust filter 3. In addition, the present invention can also shake off the water on the dust filter 3 through the high-speed rotation of the drum 22, thereby making the cleaned dust filter 3 drier and improving the user experience. Furthermore, by providing a circulating water pipe between the drain pipe 26 and the water inlet pipe 24, the washing water can be recycled and water can be saved. In addition, a heating device is provided in the water storage tank to heat the washing water, which further improves the cleaning effect of the washing water.

[0041] As stated in the first paragraph of this section, the above implementation mode is only used to illustrate the principles of the present invention and is not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above structure so that the present invention can be applied to more specific application scenarios.

[0042] For example, in an alternative embodiment, in addition to providing a tooth structure 222 on the drum 22 so that the dust filter 3 can be wound on the drum 22, the drum 22 can also be provided with no tooth structure 222, and instead the dust filter 3 can be wound on the drum 22 by the friction between the dust filter 3 and the drum 22. Therefore, there is no restriction on the way the dust filter 3 is wound on the drum 22. These adjustments do not deviate from the principles of the present invention and therefore will fall within the scope of protection of the present invention.

[0043] For example, in an alternative embodiment, in addition to the first transmission structure 31 and the second transmission structure 11 being a rack and a transmission gear for power transmission, the first transmission structure 31 can also be a transmission belt, and the second transmission structure 11 is a pulley connected to the transmission belt, and the transmission belt is driven to move by the rotation of the pulley, thereby driving the dust filter 3 to move. These adjustments do not deviate from the principles of the present invention and therefore will fall within the scope of protection of the present invention.

[0044] For example, in an alternative embodiment, the water inlet pipe 24 may be arranged so as not to penetrate the drum 22 and not to be provided with the high-pressure water spray hole 241. Instead, the water inlet pipe 24 may be fixed to the water tank housing 21 and extend into the cavity of the drum 22, thereby delivering water into the cavity of the drum 22 and spraying the high-pressure water outward through the water-permeable hole 221 in the drum 22. These adjustments do not deviate from the principles of the present invention and thus fall within the scope of protection of the present invention. Furthermore, the high-pressure water spray hole 241 provided on the water inlet pipe 24 may be circular, square, or polygonal, and thus the shape of the high-pressure water spray hole 241 is not limited in any way; as long as the high-pressure water spray hole 241 is capable of spraying water, these adjustments do not deviate from the principles of the present invention and thus fall within the scope of protection of the present invention. Furthermore, the number of the water inlet pipe 24 and the drain pipe 26 may be one or more, and those skilled in the art may determine the number as needed, thus falling within the scope of protection of the present invention.

[0045] For example, in an alternative embodiment, the cleaning roller 23 may also be provided with bristles thereon, and the ends of the bristles may be used to brush the dust filter 3 on the roller 22. The bristles may be plastic bristles or biological material bristles, etc., and there is no restriction on the material of the bristles. The cleaning roller 23 may also be provided with bristles on the basis of the rubber scraper 231 to clean the dust filter 3. Therefore, there is no restriction on the structure of the cleaning roller 23. As long as the dust filter 3 can be cleaned, those skilled in the art may set it as needed. In addition, the cleaning roller 23 may not be installed with the third drive device 292 to drive the rotation. When the roller 22 rotates, the friction between the dust filter 3 and the cleaning roller 23 may drive the cleaning roller 23 to rotate. These adjustments do not deviate from the principles of the present invention and therefore fall within the scope of protection of the present invention. In addition, the cleaning roller 23 can also be arranged to be partially located inside the water tank housing 21. Specifically, the cleaning roller 23 is rotatably arranged on the water tank housing 21. An opening is provided on the water tank housing 21, through which a part of the cleaning roller 23 is located inside the water tank housing 21 and can contact the outer surface of the dust filter 3 when cleaning the dust filter 3. The other part is located outside the water tank housing 21, thereby preventing the problem of mold on the cleaning roller 23 caused by the closure inside the water tank housing 21.

[0046] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. An air conditioner, characterized in that: It includes an air-conditioning cover and a water tank assembly, a dust filter is arranged in the air-conditioning cover, and the water tank assembly includes a fixed water tank shell, a roller and a cleaning roller, and the roller and the cleaning roller are both rotatably arranged in the water tank shell; the dust filter is provided with a first transmission structure, and the air-conditioning cover is provided with a second transmission structure that cooperates with the first transmission structure, so that the dust filter can move back and forth between the air-conditioning cover and the drum; the drum is configured to be able to wind the dust filter on the outer surface of the drum, and the end of the cleaning roller is in contact with the outer surface of the dust filter; a water inlet pipe is provided in the drum, and a water permeable hole is provided on the drum.

2. The air conditioner according to claim 1, characterized in that The first transmission structure is a rack, and the second transmission structure is a transmission gear. The transmission gear is rotatably arranged on the air conditioner cover.

3. The air conditioner according to claim 2, characterized in that A tooth structure capable of meshing with the rack is provided along the circumference of the drum.

4. The air conditioner according to claim 2, characterized in that A first guide rail groove is provided in the air conditioner cover, and the dust filter is located in the first guide rail groove.

5. The air conditioner according to claim 3, characterized in that The drum is provided with a second guide rail groove, the tooth structure is located in the second guide rail groove, the second guide rail groove is provided with a notch, and the dust filter enters the second guide rail groove through the notch.

6. The air conditioner according to claim 1, characterized in that The air conditioner further comprises a fixed water tank bracket, and the water tank housing is fixed on the water tank bracket.

7. The air conditioner according to claim 1, wherein: A drain pipe is provided at the bottom of the water tank housing.

8. The air conditioner according to claim 7, characterized in that The drain pipe is provided with a solenoid valve; and / or the water inlet pipe is connected to a water pump.

9. The air conditioner according to claim 1, wherein: The water inlet pipe is provided with a plurality of high-pressure water spray holes; and / or, the second transmission structure is connected to a first drive device; and / or, the roller is connected to a second drive device; and / or, the cleaning roller is connected to a third drive device.

10. The air conditioner according to claim 1, wherein The outer surface of the cleaning roller is provided with a plurality of rubber scrapers along the axial direction, and the ends of the rubber scrapers can abut against the outer surface of the dust filter; and / or, the outer surface of the cleaning roller is provided with bristles.

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