Air supply device

Abstract

The utility model relates to an air supply device. The air supply device comprises a shell, a filter screen assembly and a cleaning assembly. The filter screen assembly is rotatably arranged in the shell; the cleaning assembly is arranged on the shell, and part of the cleaning assembly is in contact with the filter screen; wherein the air supply device can be switched between an air supply state and a self-cleaning state, when the air supply device is in the air supply state, the filter screen assembly and the cleaning assembly are kept relatively static, and when the air supply device is in the self-cleaning state, the filter screen assembly rotates relative to the cleaning assembly. According to the air supply device, the filter screen assembly can rotate relative to the cleaning assembly, and when the air supply device is in the air supply state, the filter screen assembly and the cleaning assembly are in the relative static state. When the air supply device is in the self-cleaning state, the filter screen assembly can rotate relative to the cleaning assembly, the cleaning assembly can scrape off impurities on the surface of the filter screen assembly, the filter screen assembly does not need to be taken down from the shell, self-cleaning of the filter screen assembly can be achieved, and the cleaning difficulty of the filter screen assembly is reduced.

Description

Technical Field

[0001] This application relates to the technical field of household appliances, and particularly to an air supply device. Background Art

[0002] A fan with a filter is one type of fan. Its filter can filter dust and particles in the air sent out by the fan, thereby improving the quality of the air sent out. However, as the usage time of the fan increases, the impurities attached to the filter also increase. Therefore, it is necessary to clean the filter regularly. Currently, generally, the filter is removed from the fan for cleaning, which is time-consuming and laborious. Summary of the Utility Model

[0003] In view of the problem that the filter of the existing air supply device is inconvenient to clean, this application proposes an air supply device, which has the technical effect of being able to automatically clean the filter.

[0004] An air supply device includes:

[0005] A housing;

[0006] A filter assembly rotatably arranged in the housing;

[0007] A cleaning assembly arranged on the housing, with part of the cleaning assembly in contact with the filter;

[0008] Wherein, the air supply device can switch between an air supply state and a self-cleaning state. In the air supply state, the filter assembly and the cleaning assembly remain relatively stationary. In the self-cleaning state, the filter assembly rotates relative to the cleaning assembly.

[0009] In summary, by setting the filter assembly of the air supply device to be able to rotate relative to the cleaning assembly, when the air supply device is in the air supply state, the filter assembly and the cleaning assembly are in a relatively stationary state. When the air supply device is in the self-cleaning state, the filter assembly can rotate relative to the cleaning assembly, so that the cleaning assembly can scrape off the impurities on the surface of the filter assembly, without removing the filter assembly from the housing, and the self-cleaning of the filter assembly can be realized, reducing the cleaning difficulty of the filter assembly.

[0010] In one embodiment, the filter assembly includes a filter and a first driving member, and the first driving member is drivingly connected to the filter and drives the filter to rotate about its own axis;

[0011] The cleaning assembly includes a cleaning member, and the cleaning member extends along the radial direction of the filter and is in contact with the filter.

[0012] With such a setting, on the premise of not affecting the cleaning effect of the cleaning member, the volume of the cleaning member is reduced.

[0013] In one embodiment, the shell includes a rear net, which forms an air inlet end, the filter assembly is arranged close to the air inlet end, and the cleaning assembly is installed on the rear net. Along the axis, the orthographic projection outline of the filter coincides with the orthographic projection outline of the rear net, and the orthographic projection outline of the cleaning assembly falls within the orthographic projection outline of the filter.

[0014] In summary, because the cleaning assembly is mounted on the rear screen and only occupies a portion of the space on the rear screen, the size of the air inlet can be maximized, allowing more air to enter the housing at a time. In addition, mounting the cleaning assembly on the rear screen eliminates the need for additional mounting components for the cleaning assembly, simplifying the structure of the air supply device.

[0015] In one embodiment, the cleaning component includes a dust collecting part, which is installed on the rear net. The rear net is provided with a dust removal channel, and the cleaning part is provided in the dust removal channel. One end of the dust removal channel is connected to the filter screen, and the other end is connected to the opening of the dust collecting part.

[0016] In this way, when the cleaning member cleans the filter, the dust collecting member can be used to collect impurities that fall from the filter, thereby reducing the probability of secondary contamination caused by impurities that fall from the filter being scattered inside the shell.

[0017] In one embodiment, a card slot is provided in the dust removal channel, and the cleaning member is clamped in the card slot.

[0018] With such arrangement, when the cleaning piece needs to be replaced, the cleaning piece can be directly removed from the card slot, which makes it easy to replace the cleaning piece.

[0019] In one embodiment, the dust collecting member is detachably mounted on the rear net.

[0020] With such arrangement, when it is necessary to clean the impurities collected in the dust collecting member, it is convenient to install and disassemble the dust collecting member, thereby reducing the difficulty of installing and disassembling the dust collecting member.

[0021] In one embodiment, the dust collecting member is provided with a hand-held portion, and the hand-held portion is arranged away from the filter.

[0022] The hand-held portion provides a hand-holding space for the user, making it convenient for the user to hold the dust collecting piece so as to install the dust collecting piece on the rear net or remove the dust collecting piece from the rear net.

[0023] In one embodiment, the filter assembly further includes a transmission structure, one end of the transmission structure is detachably connected to the first driving member, and the other end of the transmission structure is detachably connected to the filter.

[0024] With such a setting, when at least one of the first driving member, the transmission shaft, and the filter screen is damaged, only the damaged one needs to be replaced with a new component. Compared with replacing the first driving member, the transmission shaft, and the filter screen together, only replacing the damaged component reduces the maintenance cost of the air supply device.

[0025] In one embodiment, the filter screen is configured as an annular structure. The transmission structure includes a gear and an annular member. One end of the gear is drivingly connected to the first driving member, and the other end meshes with the inner ring of the annular member. The outer ring of the annular member is connected to the inner ring wall of the filter screen.

[0026] With such a setting, when the first driving member operates, it can drive the gear to rotate, the gear drives the annular member to rotate, and the annular member drives the filter screen to rotate. By setting the transmission mode between the gear and the annular member as a meshing mode, the smoothness of the transmission structure during operation is improved, and the probability of the filter screen shaking violently during rotation is reduced.

[0027] In one embodiment, the annular member is detachably connected to the filter screen.

[0028] With such a setting, not only the difficulty of connecting the annular member and the filter screen together is reduced, but also when at least one of the annular member and the filter screen is damaged, only the damaged one needs to be replaced with a new component. Compared with replacing the annular member and the filter screen simultaneously, the maintenance cost of the air supply device is reduced.

[0029] In one embodiment, the air supply device further includes a wind blade and a second driving member. The second driving member is drivingly connected to the wind blade and is independently arranged from the first driving member.

[0030] In this way, by using different driving members to drive the wind blade and the filter screen to operate respectively, the wind blade and the filter screen can operate completely independently, reducing the probability of interference between the wind blade and the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a cross-sectional view of the air supply device provided by some embodiments of the present application.

[0032] Figure 2 It is an exploded schematic view of the air supply device provided by some embodiments of the present application.

[0033] Figure 3 It is a schematic structural view of the dust collecting member of the air supply device provided by some embodiments of the present application.

[0034] Figure 4 It is a schematic structural view of the rear net of the air supply device provided by some embodiments of the present application.

[0035] Figure 5Schematic structural diagram of the annular member of the air supply device provided by some embodiments of the present application.

[0036] Figure 6 Schematic structural diagram of the housing of the air supply device provided by some embodiments of the present application with some structures hidden.

[0037] Figure 7 Schematic structural diagram of the filter screen of the air supply device provided by some embodiments of the present application.

[0038] Explanation of reference numerals:

[0039] 10. Housing; 11. Rear net; 111. Dust removal channel; 112. Card slot; 12. Motor installation slot; 13. Front net; 20. Filter screen assembly; 21. Filter screen; 22. First driving member; 23. Transmission structure; 231. Gear; 232. Annular member; 30. Cleaning assembly; 31. Cleaning member; 32. Dust collection member; 321. Opening; 322. Holding part; 40. Blades; 50. Second driving member; 60. Blade button; X. Axis; Y. Radial direction; 100. Air supply device. Detailed implementation manners

[0040] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] In this application, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0045] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0046] Please refer to Figure 1 and Figure 2 , some embodiments of this application provide an air supply device 100, which includes a housing 10, a filter assembly 20 and a cleaning assembly 30. The filter assembly 20 is rotatably disposed in the housing 10; the cleaning assembly 30 is disposed on the housing 10, and part of the cleaning assembly 30 contacts the filter 21. Among them, the air supply device 100 can switch between the air supply state and the self-cleaning state. In the air supply state, the filter assembly 20 and the cleaning assembly 30 remain relatively stationary. In the self-cleaning state, the filter assembly 20 rotates relative to the cleaning assembly 30.

[0047] The housing 10 is used to carry the filter assembly 20 and the cleaning assembly 30. Components such as a blower blade 40 are also provided inside the housing 10. The filter assembly 20 is used to filter the air discharged by the air supply device 100 to the outside. That is to say, when the air supply device 100 is operating, the outside air is sucked into the interior of the housing 10 by the blower blade 40, and then discharged after being filtered by the filter assembly 20. The connection manner between the filter assembly 20 and the housing 10 can be, but is not limited to, hinged.

[0048] Next, the working principle of the air supply device 100 will be described by switching back and forth between the air supply state and the self-cleaning state of the air supply device 100.

[0049] When the air supply device 100 is in the air supply state, the air supply device 100 continuously absorbs air from the outside and then supplies the air to the outside after being filtered by the filter assembly 20. After being used for a period of time, impurities such as dust and particles will adhere to the filter assembly 20. At this time, the air supply device 100 can be switched to the self-cleaning mode. The filter assembly 20 can rotate relative to the cleaning assembly 30. Since the cleaning assembly 30 is in contact with the filter assembly 20, the cleaning assembly 30 can scrape off the impurities adhering to the surface of the filter assembly 20 to clean the filter assembly 20.

[0050] In summary, by setting the filter assembly 20 of the air supply device 100 to be able to rotate relative to the cleaning assembly 30, when the air supply device 100 is in the air supply state, the filter assembly 20 and the cleaning assembly 30 are in a relatively stationary state. When the air supply device 100 is in the self-cleaning state, the filter assembly 20 can rotate relative to the cleaning assembly 30, so that the cleaning assembly 30 can scrape off the impurities on the surface of the filter assembly 20. There is no need to remove the filter assembly 20 from the housing 10, and the self-cleaning of the filter assembly 20 can be realized, reducing the cleaning difficulty of the filter assembly 20.

[0051] As Figure 2 shown, in some embodiments, the filter assembly 20 includes a filter 21 and a first driving member 22. The first driving member 22 is drivingly connected to the filter 21 and drives the filter 21 to rotate about its own axis X; the cleaning assembly 30 includes a cleaning member 31. The cleaning member 31 extends along the radial direction Y of the filter 21 and is in contact with the filter 21.

[0052] The first driving member 22 can be, but is not limited to, a motor. The cleaning member 31 can be, but is not limited to, a cleaning brush.

[0053] Exemplarily, the shape of the filter screen 21 is generally a disc, and the shape of the cleaning member 31 can be a strip. The center of the filter screen 21 and one end of the cleaning member 31 can be located at the same center. The cleaning member 31 is in contact with the filter screen 21 and extends along the radial direction Y of the filter screen 21.

[0054] When the first driving member 22 drives the filter screen 21 to rotate, the impurities attached to the surface of the filter screen 21 in contact with the cleaning member 31 can be scraped off by the cleaning member 31. As the filter screen 21 rotates continuously, each part of the filter screen 21 comes into contact with the cleaning member 31 in turn to be cleaned by the cleaning member 31.

[0055] With such an arrangement, the volume of the cleaning member 31 is reduced on the premise of not affecting the cleaning effect of the cleaning member 31.

[0056] Please continue to refer to Figure 2 In some embodiments, the housing 10 includes a rear net 11. The rear net 11 forms an air inlet end. The filter screen assembly 20 is disposed near the air inlet end. The cleaning assembly 30 is mounted on the rear net 11. Along the axis X, the orthographic projection contour of the filter screen 21 coincides with the orthographic projection contour of the rear net 11, and the orthographic projection contour of the cleaning assembly 30 falls within the orthographic projection contour of the filter screen 21.

[0057] Exemplarily, the shape of the housing 10 can be a cylinder. The orthographic projection contour of the rear net 11 on the axis X can be circular, and the orthographic projection contour of the filter screen 21 on the axis X is also circular and coincides with the projection contour of the rear net 11. An installation groove can be formed on the rear net 11 for installing the cleaning assembly 30. The projected area of the cleaning assembly 30 on the axis X is smaller than the projected area of the filter screen 21 on the axis X.

[0058] When the air supply device 100 is in the air supply state, the outside air enters the housing 10 from the air inlet end of the rear net 11, that is, the outside air enters the housing 10 from the part of the rear net 11 excluding the cleaning assembly 30. The air entering the housing 10 will all pass through the filter screen 21 and be purified by the filter screen 21, and then flow out of the housing 10.

[0059] In summary, since the cleaning assembly 30 is mounted on the rear net 11 and only occupies a part of the space of the rear net 11, the size of the air inlet end can be enlarged as much as possible to allow more air to enter the housing 10 at one time. In addition, mounting the cleaning assembly 30 on the rear net 11 eliminates the need to provide additional mounting parts for the cleaning assembly 30, simplifying the structure of the air supply device 100.

[0060] As Figure 3 shown, in some embodiments, the cleaning assembly 30 includes a dust collecting member 32. The dust collecting member 32 is mounted on the rear net 11. The rear net 11 is provided with a dust removal channel 111. The cleaning member 31 is disposed in the dust removal channel 111. One end of the dust removal channel 111 is communicated with the filter screen 21, and the other end is communicated with the opening 321 of the dust collecting member 32.

[0061] Exemplarily, the dust collecting member 32 may be a box with an open end 321. A notch is formed on the rear net 11, and the notch is configured as a dust removal channel 111. A cleaning member 31 is disposed in the dust removal channel 111.

[0062] When the air supply device 100 is in the self-cleaning state, the filter screen 21 rotates self, and different parts of the filter screen 21 come into contact with the cleaning member 31 in sequence. The impurities attached to the filter screen 21 fall into the dust removal channel 111 under the action of the cleaning member 31, and enter the dust collecting member 32 along the dust removal channel 111.

[0063] In this way, when the cleaning member 31 cleans the filter screen 21, the dust collecting member 32 can be used to collect the impurities falling from the filter screen 21, reducing the probability of secondary pollution caused by the impurities falling off the filter screen 21 and scattering inside the housing.

[0064] As Figure 4 shown, in some embodiments, a clamping groove 112 is disposed in the dust removal channel 111, and the cleaning member 31 is clamped in the clamping groove 112.

[0065] When the cleaning member 31 needs to be replaced, the cleaning member 31 can be directly removed from the clamping groove 112, which is convenient for replacing the cleaning member 31.

[0066] In some embodiments, the dust collecting member 32 is detachably mounted on the rear net 11.

[0067] Exemplarily, as Figure 3 shown, the dust collecting member 32 is provided with a buckle, and the rear net 11 is provided with a clamping groove 112. The dust collecting member 32 and the rear net 11 are snap-connected. Of course, the connection manner between the dust collecting member 32 and the rear net 11 can also be a detachable manner such as screw connection. When the impurities collected in the dust collecting member 32 are about to overflow, the dust collecting member 32 can be removed from the rear net 11, and the impurities in the dust collecting member 32 can be emptied into a trash can.

[0068] With such a setting, when it is necessary to clean the impurities collected in the dust collecting member 32, it is convenient to install and disassemble the dust collecting member 32, reducing the difficulty of disassembling and assembling the dust collecting member 32.

[0069] Specifically, as Figure 3 shown, in some embodiments, the dust collecting member 32 is provided with a hand-held portion 322, and the hand-held portion 322 is disposed away from the filter screen 21.

[0070] The above-mentioned hand-held portion 322 provides a hand-held space for the user, facilitating the user to hold the dust collecting member 32 to install the dust collecting member 32 on the rear net 11 or remove the dust collecting member 32 from the rear net 11.

[0071] As Figure 2As shown, in some embodiments, the filter assembly 20 further includes a transmission structure 23. One end of the transmission structure 23 is detachably connected to the first driving member 22, and the other end is detachably connected to the filter 21.

[0072] Exemplarily, the transmission structure 23 can be a transmission shaft. One end of the transmission shaft is snap-connected to the first driving member 22, and the other end of the transmission shaft is threadedly connected to the filter 21. When the first driving member 22 operates, it drives the transmission shaft to rotate self - rotatably, and the transmission shaft drives the filter 21 to rotate synchronously.

[0073] When at least one of the first driving member 22, the transmission shaft and the filter 21 is damaged, only the damaged one needs to be replaced with a new component. Compared with replacing the first driving member 22, the transmission shaft and the filter 21 together, only replacing the damaged component reduces the maintenance cost of the air supply device 100.

[0074] Of course, in other embodiments, the transmission structure 23 is fixedly connected to the filter 21 to improve the connection stability between the two.

[0075] Further, please refer to Figure 2 and Figure 5 , in some embodiments, the filter 21 is configured as an annular structure. The transmission structure 23 includes a gear 231 and an annular member 232. One end of the gear 231 is drivingly connected to the first driving member 22, the other end is meshed with the inner ring of the annular member 232, and the outer ring of the annular member 232 is connected to the inner ring wall of the filter 21.

[0076] Exemplarily, as Figure 6 shown, a motor mounting groove 12 is provided in the housing 10, and a motor bracket is provided in the motor mounting groove 12. The first driving member 22 is mounted on the motor bracket by screws. The driving shaft of the first driving member 22 and the shaft hole of the gear 231 are in interference fit to drive the gear 231 to rotate self - rotatably. Among them, the first driving member 22 and the gear 231 are all located in the motor mounting groove 12. The gear 231 is meshed with the inner ring of the annular member 232, and the outer ring of the annular member 232 is connected with the filter 21.

[0077] When the first driving member 22 operates, it can drive the gear 231 to rotate self - rotatably. The gear 231 drives the annular member 232 to rotate self - rotatably, and drives the filter 21 to rotate self - rotatably through the annular member 232. Setting the transmission mode between the gear 231 and the annular member 232 as a meshing mode improves the smoothness of the operation of the transmission structure 23 and reduces the probability of violent shaking when the filter 21 rotates.

[0078] Even further, in some embodiments, the annular member 232 is detachably connected to the filter 21.

[0079] Exemplarily, the outer ring of the annular member 232 is provided with a convex block, and the inner ring wall of the filter 21 is provided with a groove (such as Figure 7As shown, the groove is snap - connected to the bump to connect the filter screen 21 and the annular member 232 together.

[0080] With such an arrangement, not only is the difficulty of connecting the annular member 232 and the filter screen 21 reduced, but also when at least one of the annular member 232 and the filter screen 21 is damaged, only the damaged one needs to be replaced with a new part. Compared with replacing the annular member 232 and the filter screen 21 simultaneously, the maintenance cost of the air supply device 100 is reduced.

[0081] Please refer to Figure 2 , in some embodiments, the air supply device 100 further includes a wind blade 40 and a second driving member 50. The second driving member 50 is drivingly connected to the wind blade 40 and is independently arranged from the first driving member 22.

[0082] As Figure 2 shown, the housing 10 further includes a front net 13. The front net 13 and the rear net 11 are distributed at intervals along the axis X and are provided with an air outlet end. The second driving member 50 can be but is not limited to a motor, which can also be arranged in the motor mounting groove 12 and is arranged at an interval from the first driving member 22. A wind blade 40 is provided on the side of the second driving member 50 away from the first driving member 22. The wind blade 40 is actually fixed to the motor shaft of the first driving member 22 through a wind blade button 60.

[0083] When the air supply device 100 is in the air supply state, the first driving member 22 stops running and the second driving member 50 starts running. The wind blade 40 rotates under the drive of the second driving member 50. The outside air enters the housing 10 through the air inlet and is discharged from the air outlet after being filtered by the filter screen 21.

[0084] When the air supply device 100 is in the self - cleaning state, the second driving member's 50 stops running and the first driving member 22 starts running. The first driving member 22 drives the transmission structure 23 to rotate, the transmission structure 23 drives the filter screen 21 to rotate, and the cleaning assembly 30 starts to clean the filter screen 21.

[0085] In this way, different driving members are used to drive the wind blade 40 and the filter screen 21 to operate respectively, so that the wind blade 40 and the filter screen 21 can operate completely independently, reducing the probability of interference between the wind blade 40 and the filter screen 21.

[0086] The technical features of the above - described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above - described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0087] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An air supply device, characterized in that, Comprising: A housing (10); A filter assembly (20), rotatably disposed within the housing (10); A cleaning assembly (30), disposed on the housing (10), with a part of the cleaning assembly (30) in contact with the filter screen (21); Wherein, the air supply device (100) is capable of switching between an air supply state and a self-cleaning state. In the air supply state, the filter assembly (20) and the cleaning assembly (30) remain relatively stationary. In the self-cleaning state, the filter assembly (20) rotates relative to the cleaning assembly (30).

2. The air supply device according to claim 1, wherein The filter assembly (20) includes a filter screen (21) and a first driving member (22). The first driving member (22) is drivingly connected to the filter screen (21) and drives the filter screen (21) to rotate about its own axis (X); The cleaning assembly (30) includes a cleaning member (31). The cleaning member (31) extends along the radial direction (Y) of the filter screen (21) and is in contact with the filter screen (21).

3. The air supply device according to claim 2, wherein, The housing (10) includes a rear net (11). The rear net (11) forms an air inlet end. The filter assembly (20) is disposed near the air inlet end. The cleaning assembly (30) is mounted on the rear net (11). Along the axis (X), the orthographic projection contour of the filter screen (21) coincides with the orthographic projection contour of the rear net (11), and the orthographic projection contour of the cleaning assembly (30) falls within the orthographic projection contour of the filter screen (21).

4. The air supply device according to claim 3, characterized in that, The cleaning assembly (30) includes a dust collection member (32). The dust collection member (32) is mounted on the rear net (11). The rear net (11) is provided with a dust removal channel (111). The cleaning member (31) is disposed within the dust removal channel (111). One end of the dust removal channel (111) communicates with the filter screen (21), and the other end communicates with the opening (321) of the dust collection member (32).

5. The air supply device according to claim 4, characterized in that, A clamping groove (112) is provided within the dust removal channel (111), and the cleaning member (31) is clamped within the clamping groove (112).

6. The air supply device according to claim 4, wherein, The dust collection member (32) is detachably mounted on the rear net (11).

7. The air supply device according to claim 4, wherein The dust collection member (32) is provided with a hand-held portion (322), and the hand-held portion (322) faces away from the filter screen (21).

8. The air supply device according to any one of claims 2 to 7, characterized in that, The filter assembly (20) further includes a transmission structure (23). One end of the transmission structure (23) is detachably connected to the first driving member (22), and the other end is detachably connected to the filter screen (21).

9. The air supply device according to claim 8, characterized in that, The filter screen (21) is configured as an annular structure. The transmission structure (23) includes a gear (231) and an annular member (232). One end of the gear (231) is drivingly connected to the first driving member (22), and the other end meshes with the inner ring of the annular member (232). The outer ring of the annular member (232) is connected to the inner ring wall of the filter screen (21).

10. The air supply device according to claim 9, characterized in that, The annular member (232) is detachably connected to the filter screen (21).

11. The air supply device according to any one of claims 2 to 7, characterized in that, The air supply device (100) further includes a wind blade (40) and a second driving member (50). The second driving member (50) is drivingly connected to the wind blade (40) and is independently arranged from the first driving member (22).

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