An air conditioner

Abstract

The present invention provides an air conditioner, comprising a housing, an air inlet connected to the interior is formed on the housing; a filter assembly, comprising a filter bracket and a filter movably arranged on the filter bracket; the filter bracket comprises: a bottom bracket, the bottom bracket comprises a first area and a second area corresponding to the air inlet, at least the first area is formed with a grille structure; a first cover plate, arranged on the bottom bracket corresponding to the first area, a gap is formed between the first cover plate and the bottom bracket, and a grille structure is formed on the first cover plate; a second cover plate, arranged on the bottom bracket corresponding to the second area, a gap is formed between the second cover plate and the bottom bracket; a moving track is formed between the gaps between the first cover plate, the second cover plate and the bottom bracket, and the filter can slide along the moving track; a driving mechanism, the driving mechanism is connected to the filter; a cleaning assembly, used to clean the filter at least during the movement of the filter. The present invention improves the reliability of the movement of the filter.

Description

Technical Field

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

[0002] The air inlet of the air conditioner is usually equipped with a filter to filter the air entering the air conditioner. After long-term use, a lot of dust or other dirt is easily attached to the filter, causing the filter to be blocked and resulting in poor ventilation, which affects the air supply of the air conditioner. At the same time, if the filter is too dirty, it is easy to breed bacteria and pollute the indoor air quality.

[0003] In order to keep the filter clean, it is necessary to clean the filter regularly, but the disassembly, assembly and cleaning of the filter are relatively complicated, which is difficult for some people (the elderly, women, etc.).

[0004] In order to solve the problem of filter cleaning, some air conditioners are equipped with cleaning brushes and the like. However, cleaning by cleaning brushes and other structures requires relative movement of the cleaning brush and the filter, and the movement of the filter is prone to jamming, resulting in poor cleaning effect and even causing the air conditioner to malfunction. Summary of the invention

[0005] In view of this, the present invention provides an air conditioner, which is at least used to solve the technical problem of low reliability of filter movement in the prior art, specifically:

[0006] The present invention provides an air conditioner, comprising

[0007] A housing, wherein the housing is provided with an air inlet communicating with the interior;

[0008] The filter assembly is arranged inside the housing, and comprises a filter support and a filter movably arranged on the filter support; wherein the filter support comprises:

[0009] A bottom bracket, the bottom bracket comprising a first area corresponding to the air inlet, and a second area staggered with the air inlet, at least the first area is formed with a grid structure for airflow to pass through;

[0010] A first cover plate is disposed on the bottom bracket corresponding to the first area, a gap is formed between the first cover plate and the bottom bracket, and a grid structure is formed on the first cover plate to allow airflow to pass through;

[0011] a second cover plate, arranged on the bottom bracket corresponding to the second area, and forming a gap between the second cover plate and the bottom bracket;

[0012] The gaps between the first cover plate, the second cover plate and the bottom bracket form a moving track, and the filter screen can slide along the moving track so that the filter screen is located in the first area or the second area;

[0013] A driving mechanism, the driving mechanism is connected to the filter screen and is used to drive the filter screen to move;

[0014] A cleaning component is arranged in the shell and is used for cleaning the filter at least during the movement of the filter.

[0015] Further optionally, the driving mechanism includes a driving motor and a driving gear, and the driving motor is drivingly connected to the driving gear.

[0016] The filter screen is provided with a rack structure, and the driving gear is meshed with the rack structure.

[0017] Further optionally, two driving gears are provided, and the two driving gears are connected by a driving shaft.

[0018] Two rack structures are arranged on two parallel sides of the filter screen, and each of the two rack structures is meshed with one driving gear.

[0019] Further optionally, the driving mechanism is arranged between the first area and the second area, and when the filter screen is located in the first area and the second area, the rack structure is meshed with the driving gear.

[0020] Further optionally, two ends of the rack structure are respectively provided with a first convex tooth structure and a second convex tooth structure extending to the outside of the filter screen structure.

[0021] The teeth on the rack structure extend to the first convex tooth structure and the second convex tooth structure,

[0022] When the filter screen is located in the first area, the first convex tooth structure is meshed with the driving gear.

[0023] When the filter screen is located in the second area, the second convex tooth structure is meshed with the driving gear.

[0024] Further optionally, the bottom bracket is configured as a bending structure, comprising a first bending portion and a second bending portion which are angled with each other.

[0025] The first bent portion constitutes the first region, and the second bent portion constitutes the second region.

[0026] A driving mounting seat is formed at the intersection of the first bending portion and the second bending portion, and the driving device is mounted on the driving mounting seat.

[0027] Further optionally, a first limiting portion is provided on the first cover plate and / or the bottom bracket, and abuts against the first limiting portion when the filter screen is located in the first area;

[0028] A second limiting portion is provided on the second cover plate and / or the bottom bracket, and abuts against the second limiting portion when the filter screen is located in the second area.

[0029] Further optionally, a first blocking portion and a second blocking portion are respectively provided at positions near both ends of the filter screen close to the rack, and the first blocking portion and the second blocking portion extend toward the outside of the filter screen.

[0030] The first blocking portion is used to abut against the first limiting portion, and the second blocking portion is used to abut against the second limiting portion.

[0031] Further optionally, a plurality of filter screens are provided, and each filter screen is correspondingly provided with one driving mechanism.

[0032] Further optionally, the second cover plate is in a plate-like structure, connected to the bottom bracket to block the second area and block the flow channel of the second area.

[0033] Further optionally, the cleaning assembly includes a spraying structure for spraying cleaning liquid toward the second cover plate, wherein

[0034] the filter screen is located in the second area and / or the filter screen is rinsed by the cleaning liquid sprayed by the spraying structure during the movement in the second area.

[0035] Further optionally, there is the following dimensional relationship between some components of the air conditioner:

[0036] h1 < h2; h1 = α1·R1, α1 ∈ (0.05, 0.3); h2 – h1 = α2·R1, α2 ∈ (0, 0.2); and / or,

[0037] d1 < R1 < d1 + h1; and / or,

[0038] R2 = d1 + h2; R2 = d2 + h3; and / or,

[0039] L1 < L2;

[0040] Among them, h1 is the height of the filter, h2 is the width of the movable guide rail between the first cover plate and the bottom bracket, h3 is the width of the movable guide rail between the second cover plate and the bottom bracket, L1 is the width of the air inlet, L2 is the length of the second cover plate in the vertical direction, d1 is the vertical distance between the rotation center of the transmission shaft and the horizontal guide surface of the second cover plate, d2 is the horizontal distance between the rotation center of the transmission shaft and the vertical surface of the second cover plate guide rail, R1 is the radius of the top circle of the driving gear, and R2 is the radius of the pitch circle of the driving gear.

[0041] The present invention enables the filter to move by arranging a filter assembly, thereby cooperating with the cleaning assembly to clean the filter. The filter bracket is arranged to support the filter and guide the movement of the filter, so that the movement of the filter is more stable and reliable, and the cleaning effect is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] By describing in detail its exemplary embodiments with reference to the accompanying drawings, the above and other objects, features and advantages of the present disclosure will become more apparent. The accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can also be obtained based on these accompanying drawings without creative work.

[0043] Figure 1 A schematic diagram of an air conditioner according to an embodiment of the present invention is shown;

[0044] Figure 2 A schematic diagram of the structure of a filter assembly according to an embodiment of the present invention is shown;

[0045] Figure 3 A schematic diagram of the explosion structure of a filter assembly according to an embodiment of the present invention is shown;

[0046] Figure 4 A schematic diagram of the structure of a filter screen according to an embodiment of the present invention is shown;

[0047] Figure 5 A schematic diagram showing the assembly state of the filter screen and the driving mechanism according to an embodiment of the present invention;

[0048] Figure 6 A schematic cross-sectional view of a filter assembly according to an embodiment of the present invention is shown;

[0049] Figure 7 Show Figure 6 Enlarged view of point A in the middle;

[0050] Figure 8 A schematic cross-sectional view of a filter assembly according to an embodiment of the present invention is shown;

[0051] Fig. 9 Show Figure 8 Enlarged view of point B in the middle;

[0052] Fig.10 A schematic diagram showing the internal structure of an air conditioner according to an embodiment of the present invention is shown;

[0053] Fig.11 An exploded schematic diagram showing the internal structure of an air conditioner according to an embodiment of the present invention;

[0054] Fig.12 A schematic cross-sectional view of the internal structure of an air conditioner according to an embodiment of the present invention is shown;

[0055] Fig.13 Shows the size relationship of the various parts of the filter assembly.

[0056] In the figure:

[0057] 10. Shell; 11. Air inlet; 12. Air outlet; 20. Filter assembly; 211. Bottom bracket; 2111. First bending portion; 2112. Second bending portion; 212. First cover plate; 213. Second cover plate; 214. First limiting portion; 215. Second limiting portion; 22. Filter; 221. Rack structure; 222. First convex tooth structure; 223. Second convex tooth structure; 224. First stop portion; 225. Second stop portion; 231. Drive gear; 232. Drive motor; 233. Drive shaft; 31. Spray structure; 32. Water tank; 33. Booster pump; 34. Filter; 35. Water pump; 40. Heat exchanger. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0060] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0061] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0062] The present invention provides a movable filter assembly and a cleaning assembly to enable the air conditioner to automatically clean the filter, and provides a filter bracket that supports and guides the filter to ensure the stability and reliability of the filter movement, thereby achieving a better cleaning effect. The present invention is described in detail below in conjunction with specific embodiments.

[0063] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention provides an air conditioner, including a shell 10, on which an air inlet 11 and an air outlet 12 communicating with the interior are formed, so that an air flow channel is formed inside the shell 10; a filter assembly 20, which is arranged inside the shell 10, includes a filter bracket and a filter 22 movably arranged on the filter bracket; the filter bracket includes: a bottom bracket 211, the bottom bracket 211 includes a first area corresponding to the air inlet 11, and a second area staggered from the air inlet 11, at least the first area is formed with a grille structure for air flow to pass through; a first cover plate 212, which is overlapped with the bottom bracket 211 in the first area with a gap formed therebetween, and is connected to the bottom bracket 211, and a grille structure is formed on the first cover plate 212 for air flow to pass through; a second cover plate 213, which is overlapped with the bottom bracket 211 in the second area with a gap formed therebetween, and is connected to the bottom bracket 211; the first cover plate 212, the second cover plate 213 and the bottom bracket 211 are overlapped The gap between them forms a moving track, and the filter 22 can slide along the moving track so that the filter 22 is located in the first area or the second area; a driving mechanism is provided on the bottom bracket 211, and the driving mechanism is connected to the filter 22 for driving the filter 22 to move; a cleaning component is provided in the shell 10, and is used to clean the filter 22 at least during the movement of the filter 22.

[0064] In this embodiment, the grille structures on the first cover plate 212 and the bottom bracket 211 are arranged relative to each other to form an air inlet channel corresponding to the air inlet 11. The airflow can enter the interior of the outer shell 10 through the air inlet 11, the first cover plate 212 and the bottom bracket 211. Therefore, when the filter 22 is located between the first cover plate 212 and the bottom bracket 211, that is, located in the first area, the airflow will flow through the filter 22 and be filtered by the filter 22.

[0065] The second cover plate 213 is a plate-shaped structure, connected to the bottom bracket 211 to shield the second area and block the flow channel of the second area. The cleaning component sprays the cleaning liquid toward the second cover plate 213, and the liquid washes the filter screen and is blocked by the second cover plate 213, thereby preventing the cleaning liquid from being sprayed onto other components. A water receiving tray is provided on the lower side of the second cover plate 213, and the cleaning liquid on the second cover plate 213 flows along its inner wall into the water receiving tray, and the water in the water receiving tray can be further discharged to the outside of the housing 10.

[0066] The driving mechanism includes a driving motor 232 and a driving gear 231. The driving motor 232 is driven and connected to the driving gear 231 after being speed-regulated by a gear box. A rack structure 221 is provided on the filter screen 22. The rack structure 221 is provided at the edge of the filter screen 22 and extends along the moving direction of the filter screen 22. The driving gear 231 is meshed with the rack structure 221. The filter screen 22 is driven by the rack and gear structure 221, which can ensure the accuracy and reliability of movement.

[0067] Preferably, two driving gears 231 are provided, and the two driving gears 231 are connected by a driving shaft 232, so that the two driving gears 231 can rotate synchronously. Correspondingly, two rack structures 221 are provided on two parallel sides of the filter 22, and the two rack structures 221 are meshed with one driving gear 231 respectively. The two rack and gear structures 221 cooperate so that both sides of the filter 22 are simultaneously subjected to driving force, and the force on the filter 22 is more uniform and the movement is more stable.

[0068] The driving mechanism is preferably disposed between the first area and the second area, so that when the filter screen 22 is located in the first area and the second area, the rack structure 221 is meshed with the driving gear 231. Figure 4 , Figure 5As shown, the two ends of the rack structure 221 are respectively provided with a first convex tooth structure 222 and a second convex tooth structure 223 extending to the outside of the filter screen 22 structure, and the teeth on the rack structure 221 extend to the first convex tooth structure 222 and the second convex tooth structure 223, so that the first convex tooth structure 222 and the second convex tooth structure 223 can mesh with the driving gear 231. When the filter screen 22 is located in the first area, the first convex tooth structure 222 meshes with the driving gear 231, and when the filter screen 22 is located in the second area, the second convex tooth structure 223 meshes with the driving gear 231, thereby ensuring that the filter screen 22 always has teeth meshing with the driving gear 231. Preferably, at least three teeth on the first convex tooth structure 222 and the second convex tooth structure 223 can mesh with the driving gear 231, so that the filter screen has a larger range of movement, and the driving gear 231 is prevented from being separated from the rack and losing the driving function.

[0069] Preferably, the bottom bracket 211 is constructed as a bending structure, including a first bending portion 2111 and a second bending portion 2112 at an angle to each other, so that it is suitable for a wall-mounted air conditioner. For example, the first bending portion 2111 and the second bending portion 2112 are perpendicular to each other. Fig.12 As shown, the bottom bracket 211 of the bent structure enables the filter assembly 20 to block the top (the position opposite to the air inlet) and the side of the heat exchanger 40, which is suitable for wall-mounted units and can reduce the occupied space. The first bent portion 2111 constitutes the first area, the second bent portion 2112 constitutes the second area, and the intersection of the first bent portion 2111 and the second bent portion 2112 forms a drive mounting seat, and the drive device is installed on the drive mounting seat. The drive mounting seat includes an arc-shaped mounting groove formed at the connection between the first bent portion 2111 and the second bent portion 2112, and a driving shaft 232 support structure. The arc of the arc-shaped mounting groove matches the driving gear 231. The driving shaft 232 is rotatably mounted on the driving shaft 232 support structure, and the driving gear 231 is located in the arc-shaped mounting groove, and there is a gap between the arc-shaped mounting groove to ensure its normal rotation. The driving motor 232, the gear box, etc. can be arranged at the end of the arc-shaped mounting groove and installed on the outside of the arc-shaped mounting groove. The setting of the arc-shaped installation groove provides an installation space for the driving gear 231 and also enables the driving gear 231 to better match with the filter screen 22 .

[0070] like Figure 6 , Figure 7 , Figure 8 , Fig. 9As shown, preferably, a first limiting portion 214 is provided on the first cover plate 212 and / or the bottom bracket 211. When the filter screen 22 is located in the first area, it abuts against the first limiting portion 214, and the filter screen 22 is limited by the first limiting portion 214. In this embodiment, the first limiting portion 214 is formed on the first cover plate 212 and is located at the edge of the first cover plate 212. When the first cover plate 212 is connected to the bottom bracket 211, the first limiting portion 214 is located on the side of the moving track between the first cover plate 212 and the bottom bracket 211.

[0071] The second limit portion 215 is provided on the second cover plate 213 and / or the bottom bracket 211. When the filter screen 22 is located in the second area, it abuts against the second limit portion 215, and the filter screen 22 is limited by the second limit portion 215. In this embodiment, the second limit portion 215 is formed on the bottom bracket 211, and the first limit portion 214 is located on the side of the moving track between the second cover plate 213 and the bottom bracket 211 when the first cover plate 212 is connected to the bottom bracket 211.

[0072] Correspondingly, positions near both ends of the rack on the filter are respectively provided with 224 and a second stopper 225, 224 and the second stopper 225 extend toward the outside of the filter screen 22, 224 is used to abut against the first limiter 214, and the second stopper 225 is used to abut against the second limiter 215. Specifically, the first convex tooth structure 222 extends to an area exceeding 224, and the second convex tooth structure 223 extends to an area exceeding the second stopper 225, so that the limit will not affect the first convex tooth part and the second convex tooth part, and the size of the filter assembly as a whole can also be reduced in the moving direction of the filter screen.

[0073] Preferably, multiple filter screens 22 are provided. In the present embodiment, two filter screens 22 are provided. The two filter screens 22 are arranged side by side. A driving mechanism is provided corresponding to each filter screen 22. The two filter screens 22 are driven by the driving mechanism separately to ensure that each filter screen 22 has sufficient driving force to drive it during the movement.

[0074] Furthermore, in order to ensure that the filter screen 22 can move smoothly, Fig.13 As shown, the dimensional relationship of each part of the filter assembly 20 must meet the following conditions:

[0075] (1)h1 <h2;

[0076] (2)d1 <R1<d1+h1;

[0077] (3) R2=d1+h2;

[0078] (4) R2=d2+h3;

[0079] (5)h1=α1·R1, α1∈(0.05,0.3);

[0080] (6)h2–h1=α2·R1, α2∈(0,0.2);

[0081] (7)L1 <L2;

[0082] Among them, h1 is the height of the filter 22, h2 is the width of the movable guide rail between the first cover plate 212 and the bottom bracket 211, h3 is the width of the movable guide rail between the second cover plate 213 and the bottom bracket 211, L1 is the width of the air inlet 11, L2 is the length of the second cover plate 213 in the vertical direction, d1 is the vertical distance between the rotation center of the transmission shaft and the horizontal guide surface of the second cover plate 213, d2 is the horizontal distance between the rotation center of the transmission shaft and the vertical surface of the guide rail of the second cover plate 213, R1 is the radius of the top circle of the driving gear 231, and R2 is the radius of the pitch circle of the driving gear 231.

[0083] like Fig.10 , Fig.11 As shown, the cleaning assembly includes a spray structure 31, which is used to spray cleaning liquid toward the second cover plate 213, wherein the filter screen 22 is located in the second area and / or the filter screen 22 is washed by the cleaning liquid sprayed by the spray structure 31 during movement in the second area.

[0084] Specifically, the cleaning component also includes a water tank 32 and a booster pump 33, wherein the liquid inlet of the water tank 32 is connected to the water outlet of the water pump 35, and the booster pump 33 is arranged between the liquid outlet D2 of the water tank 32 and the spray structure 31. In this way, the setting of the water tank 32 realizes the storage function of the condensed water in the docking water tray, ensures that the condensed water in the water tray can be continuously stored in the water tank 32, and avoids the phenomenon of poor cleaning effect on the filter 22 due to the limited water storage capacity of the water tray; in addition, it is also convenient to control the volume of the water tray within a reasonable range, which is conducive to the improvement of the economy and miniaturization design of the air conditioner. The setting of the booster pump 33 can realize the efficient extraction and pressurization of the condensed water in the docking water tray, ensure that the condensed water has sufficient spray pressure when it reaches the spray structure 31, and increase the spatial cleaning area to improve the cleaning effect of the filter 22.

[0085] Preferably, the predetermined spraying pressure at the spray structure 31 is between 0.1 MPa and 0.8 MPa.

[0086] It should be noted that in order to ensure that the water tank 32 can store condensed water for a long time and prevent bacteria from growing, the water tank 32 can be made of antibacterial material; in this way, the water storage cycle of the water tank 32 can reach 0 to 144 hours; therefore, the cleaning operation cycle of the air conditioner for the filter 22 can be set within this water storage cycle to ensure the rational use of the condensed water in the water tank 32 and ensure the cleaning effect of the filter 22.

[0087] The cleaning component also includes a filter 34, which is arranged between the water receiving tray and the water pump 35 and connects the two; the filter 34 includes a filter base, a filter cover and a filter element, wherein the filter base and the filter cover can be assembled detachably and enclose a filter cavity, and the filter element is arranged in the filter cavity. The setting of the filter 34 ensures that the large particles and dust carried by the condensed water in the water receiving tray can be effectively filtered before entering the water pump 35, that is, it avoids the blockage of the water pump 35, the booster pump 33 or the spray structure 31 in the later stage. At the same time, the clean condensed water is more conducive to ensuring the cleaning effect of the filter screen 22. The filter 34 is set to a structural form including a filter base, a filter cover and a filter element, in order to facilitate the replacement of the filter element to ensure the filtering performance of the filter 34; wherein, after disassembling the filter base and the filter cover and taking out the filter element, the filter element can be recycled after cleaning.

[0088] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. An air conditioner, Features: include A housing, wherein the housing is provided with an air inlet communicating with the interior; The filter assembly is arranged inside the housing, and comprises a filter support and a filter movably arranged on the filter support; wherein the filter support comprises: A bottom bracket, the bottom bracket comprising a first area corresponding to the air inlet, and a second area staggered with the air inlet, at least the first area is formed with a grid structure for airflow to pass through; A first cover plate is disposed on the bottom bracket corresponding to the first area, a gap is formed between the first cover plate and the bottom bracket, a grid structure is formed on the first cover plate, and airflow can pass through the grid structure, and the filter screen can filter the airflow when the filter screen is located in the first area; a second cover plate, arranged on the bottom bracket corresponding to the second area, and forming a gap between the second cover plate and the bottom bracket; The gaps between the first cover plate, the second cover plate and the bottom bracket form a moving track, and the filter screen can slide along the moving track so that the filter screen is located in the first area or the second area; A driving mechanism, the driving mechanism is connected to the filter screen and is used to drive the filter screen to move; A cleaning component is arranged in the shell and is used for cleaning the filter at least during the movement of the filter.

2. The air conditioner according to claim 1, Features: The driving mechanism comprises a driving motor and a driving gear, wherein the driving motor is drivingly connected to the driving gear. The filter screen is provided with a rack structure, and the driving gear is meshed with the rack structure.

3. The air conditioner according to claim 2, Features: The driving gears are provided with two, and the two driving gears are connected by a driving shaft. Two rack structures are arranged on two parallel sides of the filter screen, and each of the two rack structures is meshed with one driving gear.

4. The air conditioner according to claim 2, Features: The driving mechanism is arranged between the first area and the second area. When the filter screen is located in the first area and the second area, the rack structure is meshed with the driving gear.

5. The air conditioner according to claim 4, Features: The two ends of the rack structure are respectively provided with a first convex tooth structure and a second convex tooth structure extending to the outside of the filter screen structure. The teeth on the rack structure extend to the first convex tooth structure and the second convex tooth structure, When the filter screen is located in the first area, the first convex tooth structure is meshed with the driving gear. When the filter screen is located in the second area, the second convex tooth structure is meshed with the driving gear.

6. The air conditioner according to claim 4, Features: The bottom bracket is configured as a bent structure, including a first bent portion and a second bent portion which are angled with each other. The first bent portion constitutes the first region, and the second bent portion constitutes the second region. A driving mounting seat is formed at the intersection of the first bending portion and the second bending portion, and the driving mechanism is mounted on the driving mounting seat.

7. The air conditioner according to claim 6, characterized in that: a first limiting portion is provided on the first cover plate and / or the bottom bracket, and abuts against the first limiting portion when the filter screen is located in the first area; a second limiting portion is provided on the second cover plate and / or the bottom bracket, and abuts against the second limiting portion when the filter screen is located in the second area.

8. The air conditioner according to claim 7, characterized in that: a first blocking portion and a second blocking portion are respectively provided at positions close to both ends of the rack on the filter, and the first blocking portion and the second blocking portion extend towards the outside of the filter screen, the first blocking portion is used to abut against the first limiting portion, and the second blocking portion is used to abut against the second limiting portion.

9. The air conditioner according to any one of claims 1-8, characterized in that: a plurality of the filter screens are provided, and each filter screen is correspondingly provided with one of the driving mechanisms.

10. The air conditioner according to any one of claims 1-8, characterized in that: the second cover plate is in a plate-like structure and is connected to the bottom bracket to block the second area and block the flow passage of the second area.

11. The air conditioner according to claim 10, characterized in that: the cleaning assembly includes a spraying structure for spraying cleaning liquid towards the second cover plate, wherein, the filter screen is located in the second area and / or the filter screen is rinsed by the cleaning liquid sprayed by the spraying structure during the movement in the second area.

12. The air conditioner according to any one of claims 2-8, characterized in that: there is the following dimensional relationship between some components of the air conditioner: h1 < h2; h1 = α1·R1, α1 ∈ (0.05, 0.3); h2 – h1 = α2·R1, α2 ∈ (0, 0.2); and / or, d1 < R1 < d1 + h1; and / or, R2 = d1 + h2; R2 = d2 + h3; and / or, L1 < L2; wherein, h1 is the height of the filter screen, h2 is the width of the moving guide rail between the first cover plate and the bottom bracket, h3 is the width of the moving guide rail between the second cover plate and the bottom bracket, L1 is the width of the air inlet, L2 is the length of the second cover plate in the vertical direction, d1 is the vertical distance between the rotation center of the transmission shaft and the horizontal guide rail surface of the second cover plate, d2 is the horizontal distance between the rotation center of the transmission shaft and the vertical guide rail surface of the second cover plate, R1 is the radius of the addendum circle of the driving gear, and R2 is the radius of the pitch circle of the driving gear.

Images