Self-cleaning mechanism for filter screen and air conditioner indoor unit

Abstract

A self-cleaning mechanism for a filter screen and an air conditioner indoor unit, relating to the technical field of air conditioners. The self-cleaning mechanism for a filter screen comprises: a filter screen (300); a driving assembly comprising a driving gear (110), a first driven gear (121), and a second driven gear (122), wherein the first driven gear (121) is connected to a first reel, the second driven gear (122) is connected to a second reel, and when a driving motor (100) drives the driving gear (110) to rotate, the first driven gear (121) drives the first reel to rotate so as to wind a first end of the filter screen (300), and the second driven gear (122) drives the second reel to rotate so as to unwind a second end of the filter screen (300); a filter screen support (400) used for supporting the filter screen (300), wherein the filter screen support (400) comprises a support end portion (410) at a rotation position of the filter screen (300); and a rotating shaft (500) arranged at the support end portion (410), wherein the rotating shaft (500) is used for supporting the filter screen (300) to rotate, and the diameter of the rotating shaft (500) is greater than or equal to the supporting thickness of the support end portion (410).

Description

Filter self-cleaning mechanism and air conditioner indoor unit

[0001] This application is based on the Chinese patent application with application number 202420249587.9 and application date February 1, 2024, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0002] The present application relates to the field of air-conditioning technology, for example, to a filter self-cleaning mechanism and an air-conditioning indoor unit. Background Art

[0003] After the air conditioner has been used for a period of time, dust will accumulate on the surface of the filter at the air inlet of the air conditioner indoor unit. Therefore, the filter needs to be cleaned regularly to ensure the cleanliness of the air blown into the user's room.

[0004] In the existing method of cleaning the filter, a driving mechanism is used to drive the filter to rotate, and at the same time, a dust removal component such as a brush is driven to rotate, so that the filter and the dust removal component produce relative motion, thereby allowing the dust removal component to clean the dust on the surface of the filter.

[0005] When the existing driving mechanism drives the filter to rotate, the filter may sometimes become stuck, affecting the stability of the filter rotation.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Summary of the Invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiment of the present disclosure provides a self-cleaning mechanism for a filter, comprising: a filter, a first reel is provided at the first end, a second reel is provided at the second end, the filter is tensioned between the first reel and the second reel; a driving assembly, comprising a driving gear, a first driven gear and a second driven gear, the first driven gear is connected to the first reel, and the second driven gear is connected to the second reel, when the driving motor drives the driving gear to rotate, the first driven gear drives the first reel to rotate to reel the first end of the filter, and the second driven gear drives the second reel to rotate to unreel the second end of the filter; a filter bracket, for supporting the filter, and the filter bracket includes a bracket end at the filter rotation location; and a rotating shaft, provided at the bracket end, the rotating shaft is used to support the filter rotation, wherein the diameter of the rotating shaft is greater than or equal to the support thickness of the bracket end.

[0009] The disclosed embodiment also provides an air-conditioning indoor unit, comprising the aforementioned filter self-cleaning mechanism.

[0010] In the disclosed embodiment, the diameter of the rotating shaft is greater than or equal to the support thickness of the bracket end, so that the filter can rotate smoothly at the rotating shaft, thereby improving the stability of the drive assembly during the transmission of the filter.

[0011] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0013] FIG1 is a schematic structural diagram of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0014] FIG2 is a schematic structural diagram of a filter self-cleaning mechanism provided by an embodiment of the present disclosure;

[0015] FIG3 is a schematic structural diagram of a drive assembly of a filter self-cleaning mechanism provided by an embodiment of the present disclosure;

[0016] FIG4 is a schematic structural diagram of a drive assembly of another filter self-cleaning mechanism provided by an embodiment of the present disclosure;

[0017] FIG5 is a schematic structural diagram of a drive assembly of another filter self-cleaning mechanism provided by an embodiment of the present disclosure;

[0018] FIG6 is a schematic structural diagram of a drive assembly of another filter self-cleaning mechanism provided by an embodiment of the present disclosure;

[0019] FIG7 is a schematic structural diagram of a drive assembly of another filter self-cleaning mechanism provided by an embodiment of the present disclosure;

[0020] FIG8 is a schematic structural diagram of a base provided by an embodiment of the present disclosure;

[0021] FIG9 is a schematic structural diagram of a filter provided in an embodiment of the present disclosure;

[0022] FIG10 is a schematic structural diagram of a filter provided in an embodiment of the present disclosure;

[0023] FIG11 is a schematic structural diagram of a drive assembly of another filter self-cleaning mechanism provided in an embodiment of the present disclosure;

[0024] FIG12 is an enlarged view of a selected portion of FIG11;

[0025] FIG13 is a schematic structural diagram of a rotating shaft provided in an embodiment of the present disclosure.

[0026] Reference numerals: 100: driving motor; 110: driving gear; 121: first driven gear; 122: second driven gear; 123: intermediate gear; 124: brush driven gear; 1211: first rotation center; 1221: second rotation center; 1231: third rotation center; 200: base; 201: first mounting position; 202: second mounting position; 203: third mounting position; 300: filter; 310: first tensioning section; 311: first tensioning front end; 312: first tensioning rear end; 320: second tensioning section; 321: second tensioning front end; 322: second tensioning rear end; 330: transmission section; 301: first vertical line; 302: second vertical line; 400: filter bracket; 410: bracket end; 500: rotating shaft; 510: first reinforcing rib; 520: second reinforcing rib; 600: Air conditioner indoor unit; 610: Air inlet. DETAILED DESCRIPTION

[0027] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0028] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that such terms are interchangeable where appropriate to describe the embodiments of the present disclosure. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0029] The reference to any prior art in the specification is not and should not be taken as an admission or any form of suggestion that the prior art forms part of the common general knowledge in the application area or any other jurisdiction, or that the prior art could reasonably be understood and regarded as relevant by a person skilled in the art.

[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0032] Unless otherwise stated, the term "plurality" means two or more.

[0033] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0034] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0036] The present disclosure provides a self-cleaning filter mechanism, comprising a filter 300, a first reel disposed at a first end of the filter 300, and a second reel disposed at a second end of the filter 300. The mechanism also includes a drive assembly for driving the filter 300 to reel up. The drive assembly includes a driving gear 110, a first driven gear 121, a second driven gear 122, and an intermediate gear 123. The driving gear 110 is connected to the drive motor 100. The first driven gear 121 is meshed with the driving gear 110 and is disposed on the first reel of the filter 300 to drive the first reel to rotate. The second driven gear 122 is disposed on the second reel of the filter 300 to drive the second reel to rotate. The intermediate gear 123 is meshed between the first driven gear 121 and the second driven gear 122. The first driven gear 121 drives the second driven gear 122 to rotate via the intermediate gear 123. The filter screen 300 is tensioned between the first reel and the second reel. When the driving motor 100 drives the driving gear 110 to rotate, the first driven gear 121 drives the first reel to rotate to reel in the first end of the filter screen 300, and the second driven gear 122 drives the second reel to rotate to unreel the second end of the filter screen 300.

[0037] The embodiment of the present disclosure provides a self-cleaning mechanism for a filter screen, comprising a driving gear 110, a first driven gear 121, a second driven gear 122, and an intermediate gear 123. The first driven gear 121 is connected to the first reel of the filter screen 300, and the second driven gear 122 is connected to the second reel of the filter screen 300, and the drive assembly drives the two ends of the filter screen 300 to be wound and unwound. For example, when the drive motor 100 rotates in the forward direction, the first driven gear 121 drives the first reel to rotate to wind the first end of the filter screen 300, and at the same time, the second driven gear 122 drives the second reel to rotate synchronously to unwind the second end of the filter screen 300, so that the filter screen 300 can be cleaned during the winding and unwinding process. When cleaning is completed, the drive motor 100 is controlled to reverse, and the first driven gear 121 drives the first reel to rotate to unwind the first end of the filter 300. At the same time, the second driven gear 122 drives the second reel to rotate synchronously to rewind the second end of the filter 300, so that the filter 300 returns to the state of blocking dust.

[0038] Optionally, the filter 300 includes a filter segment for blocking and filtering and a winding segment wound on the first and second reels, wherein the length of the winding segment is greater than or equal to the length of the filter segment. Optionally, the winding segment and the filter segment are integrally formed.

[0039] Optionally, in the initial state, the filter 300 can be wound around the first and second reels with the remaining filter mesh section wound around the second reel, leaving no filter mesh wound around the first reel. In this case, the second tensioning section 320 is located to the left of the second reel, allowing the first reel to rewind and the second reel to unwind, as shown in Figure 9.

[0040] The self-cleaning filter mechanism provided in the embodiment of the present disclosure utilizes a single driving gear 110 to simultaneously drive the first driven gear 121 and the second driven gear 122. This allows the drive assembly for rotating the filter 300 to be integrated into one side of the filter 300. Compared to existing structures in which the drive assembly for the filter 300 is located on both sides of the filter 300, the self-cleaning filter mechanism provided in the embodiment of the present disclosure saves installation space for the drive assembly.

[0041] In the drive assembly of the filter self-cleaning mechanism provided in the disclosed embodiment, a driving gear 110 meshes with two driven gears at either end of the filter 300, allowing one end of the filter 300 to be reeled in while the other end is unreeled. This allows a single drive mechanism to drive both ends of the filter 300, reducing the number of drive motors 100. An intermediate gear 123 is also provided, meshing between a first driven gear 121 and a second driven gear 122. The first driven gear 121 drives the second driven gear 122 via the intermediate gear 123. The provision of the intermediate gear 123 eliminates direct transmission between the first and second driven gears 121, 122, improving transmission stability between the two gears. Furthermore, the spacing between the two ends of the filter 300 is increased, enhancing the stability of the filter 300 during reeling and unreeling.

[0042] Optionally, the diameter of the first driven gear 121 is greater than the diameter of the intermediate gear 123 ; and / or the diameter of the second driven gear 122 is greater than the diameter of the intermediate gear 123 .

[0043] Compared to the first driven gear 121 and / or the second driven gear 122, the diameter of the intermediate gear 123 is smaller, which reduces the installation space required for the entire drive assembly, as shown in Figure 2. Optionally, the diameter of the first driven gear 121 is equal to the diameter of the second driven gear 122.

[0044] Optionally, the driving gear 110 is thicker than the first driven gear 121; and / or, the driving gear 110 is thicker than the second driven gear 122. Optionally, the driving gear 110, the first driven gear 121, and the second driven gear 122 are all fully toothed gears, and the driving gear 110 is thicker than the first driven gear 121 or the second driven gear 122. This improves the meshing stability between the driving gear 110 and the first driven gear 121. Optionally, the thickness of the first driven gear 121 is equal to the thickness of the second driven gear 122, as shown in Figure 3.

[0045] Optionally, the first driven gear 121 has a first rotation center 1211, the second driven gear 122 has a second rotation center 1221, and the intermediate gear 123 has a third rotation center 1231. The line connecting the first rotation center 1211 and the third rotation center 1231 obtains a first line, and the line connecting the second rotation center 1221 and the third rotation center 1231 obtains a second line, wherein the angle between the first line and the second line is greater than or equal to 90°, as shown in Figures 4 and 5.

[0046] As shown in Figure 5, the angle a between the first and second connecting lines is greater than or equal to 90°. This allows the intermediate gear 123 to engage the first and second driven gears 121 and 122 while minimizing the installation space required for the drive assembly. Furthermore, the angle a between the first and second connecting lines is greater than or equal to 90°, which allows the first and second ends of the filter screen 300 to be inclined, improving the transmission stability of the drive assembly during the rewinding and unwinding of the filter screen 300.

[0047] The first connecting line intersects the first vertical line at the third rotation center 1231, wherein the first rotation center 1211 is located on the side of the first vertical line close to the driving gear 110. As shown in FIG7 , compared with the third rotation center 1231, the first rotation center 1211 is located on the side of the first vertical line close to the driving gear 110. The second connecting line intersects the first horizontal line at the third rotation center line, wherein the second rotation center is located on the side of the first horizontal line away from the driving gear 110, that is, the second rotation center 1221 is located above the first horizontal line, as shown in FIG6 . In the filter self-cleaning mechanism provided in the embodiment of the present disclosure, the first rotation center 1211 is not located on the same vertical line as the third rotation center 1231, and the second rotation center 1221 is not located on the same horizontal line as the third rotation center 1231. In this way, the first end and the second end of the filter 300 can be tilted, thereby improving the transmission stability of the filter 300 during the winding and unwinding process.

[0048] Optionally, the aforementioned filter self-cleaning mechanism further includes a brush assembly for cleaning the filter 300 during the winding or unwinding process. The driving assembly further includes a brush driven gear 124 for driving the brush assembly to rotate, and the brush driven gear 124 is meshedly connected to the driving gear 110.

[0049] The self-cleaning filter mechanism provided in the disclosed embodiments utilizes a brush assembly to clean dust from the moving filter 300. Simultaneously, a brush driven gear 124 drives the brush assembly to rotate, causing the filter 300 and the brush to move relative to each other, thereby enhancing the brush assembly's dust cleaning effectiveness on the filter 300. Optionally, the brush driven gear 124 is positioned directly below the first driven gear 121 or the second driven gear 122 to clean the first or second end of the filter 300. For example, as shown in FIG3 , the brush driven gear 124 is positioned directly below the first driven gear 121. Optionally, the length of the brush assembly is greater than or equal to the length of the first or second end of the filter 300, thereby enhancing the brush assembly's comprehensive cleaning of the filter 300. Optionally, the diameter of the driving gear 110 is greater than the diameter of the brush driven gear 124, thereby increasing the number of revolutions of the brush and improving the brush's cleaning effectiveness on the filter 300.

[0050] Optionally, the filter self-cleaning mechanism provided in the embodiment of the present disclosure further includes a base 200 for mounting a drive assembly, wherein the base 200 includes a first mounting site 201, a second mounting site 202, and a third mounting site 203. The first mounting site 201 is used to mount the first driven gear 121, and the first driven gear 121 passes through the first mounting site 201 to connect to the first reel. The second mounting site 202 is used to mount the second driven gear 122, and the second driven gear 122 passes through the second mounting site 202 to connect to the second reel. The third mounting site 203 is used to mount the intermediate gear 123. The first mounting site 201 is provided with a first mounting platform having a first protruding height, the second mounting site 202 is provided with a second mounting platform having a second protruding height, and the third mounting site 203 is provided with a third mounting platform having a third protruding height. In addition, either the first protruding height or the second protruding height is less than the third protruding height. In the disclosed embodiment, the third mounting site 203 for mounting the intermediate gear 123 has a third protrusion height, and the third protrusion height is greater than the first protrusion height and the second protrusion height. This improves the meshing stability of the intermediate gear 123 with the first driven gear 121 and the second driven gear 122. Optionally, the first protrusion height is equal to the second protrusion height, as shown in FIG8 .

[0051] Optionally, the filter self-cleaning mechanism provided in the disclosed embodiment further includes a dust box for collecting dust. The brush assembly is mounted in the dust box. In the disclosed embodiment, the brush assembly is mounted in the dust box, and the dust box is detachably connected to the housing of the air conditioner indoor unit 600. This allows the brush assembly to be disassembled and cleaned, facilitating cleaning.

[0052] Optionally, the filter 300 includes a first tensioning section 310 directly connected to the first reel, a second tensioning section 320 directly connected to the second reel, and a transmission section 330 arranged between the first tensioning section 310 and the second tensioning section 320, and the first tensioning section 310 is arranged at an angle. In the embodiment of the present disclosure, the first tensioning section 310 is arranged at an angle, which improves the stability of the first reel in winding or unwinding the first end of the filter 300. The filter self-cleaning mechanism also includes a filter bracket 400. The transmission section 330 of the filter 300 can be understood as the part supported by the filter bracket 400. Due to the supporting effect of the filter bracket, the shape of the transmission section is the same as the supporting shape formed by the filter bracket; the first tensioning section 310 and the second tensioning section 320 are linear, as shown in Figures 9 and 10.

[0053] Optionally, the first tensioning section 310, the second tensioning section 320, and the transmission section 330 are integrally formed, and the first tensioning section 310, the transmission section 330, and the second tensioning section 320 are not specific sections of the filter screen 300. Instead, during the transmission process of the filter screen 300, or at a certain transmission stage of the filter screen 300 during transmission, the portions of the filter screen 300 tensioned at both ends are the first tensioning section 310 and the second tensioning section 320. That is, as the filter screen 300 is wound or unwound, the portions of the filter screen 300 indicated by the first tensioning section 310 and the second tensioning section 320 change accordingly.

[0054] Optionally, the first tensioning section 310 includes a first tensioning front end 311 directly connected to the transmission section 330 and a first tensioning rear end 312 directly connected to the first reel, wherein the first vertical line 301 intersects with the first tensioning front end 311, and the first tensioning rear end 312 is located on the side of the first vertical line 301 close to the driving gear 110. The second tensioning section 320 is arranged at an angle. The second tensioning section 320 includes a second tensioning front end 321 directly connected to the transmission section 330 and a second tensioning rear end 322 directly connected to the second reel, wherein the second vertical line 302 intersects with the second tensioning front end 321, and the second tensioning rear end 322 is located on the side of the second vertical line 302 close to the driving gear 110. In this way, the first tensioning section 310 and the second tensioning section 320 are both arranged at an angle, and on the premise of improving the transmission stability of the winding and unwinding of the filter 300, the first tensioning rear end 312 and the second tensioning rear end 322 are close to each other, thereby improving the meshing transmission stability between the first driven gear 121 and the second driven gear 122, as shown in Figure 10.

[0055] It can be understood that the position pointed to by 312 in FIG. 9 is the first scroll axis, and the position pointed to by 322 is the second scroll axis.

[0056] Optionally, the angle between the first tensioning section 310 and the first vertical line 301 is greater than or equal to 10° and less than or equal to 45°. The angle between the second tensioning section 320 and the second vertical line 302 is greater than or equal to 20° and less than or equal to 60°. The inclination angle of the first tensioning section 310 should not be too large, and similarly, the inclination angle of the second tensioning section 320 should not be too large. This improves the transition stability from the transmission section 330 to the first tensioning section 310 or the second tensioning section 320. Optionally, the inclination angle of the first tensioning section 310 is smaller than the inclination angle of the second tensioning section 320.

[0057] Optionally, the filter self-cleaning mechanism further includes a filter support 400 and a rotating shaft 500. The filter support 400 is used to support the filter 300, and the filter support 400 includes a support end 410 at which the filter 300 rotates. The rotating shaft 500 is disposed at the support end 410 and is used to support the filter 300 in rotation. The diameter of the rotating shaft 500 is greater than or equal to the support thickness of the support end 410.

[0058] In the filter self-cleaning mechanism provided in the embodiment of the present disclosure, the filter 300 has a two-layer structure, that is, the filter 300 includes an upper filter and a lower filter, and one end of the upper filter is set on the first reel, and one end of the lower filter is set on the second reel. At the same time, the upper filter and the lower filter rotate at the end 410 of the bracket via the rotating shaft 500. It can also be understood that the first reel and the second reel are located on one side of the double-layer filter 300, and the bracket end 410 is located on the other side of the double-layer filter 300. As shown in Figures 9 and 10, the bracket end 410 is provided with a rotating shaft 500, and the upper filter can rotate at the rotating shaft 500 to become the lower filter.

[0059] In the filter self-cleaning mechanism provided in the disclosed embodiment, the diameter H2 of the rotating shaft 500 is greater than or equal to the thickness H1 of the bracket end 410, thereby reducing the friction between the filter 300 and the filter bracket 400. Optionally, the rotating shaft 500 can be partially reduced in glue to prevent deformation caused by injection shrinkage due to excessive thickness and contribute to component lightweighting.

[0060] Optionally, the rotating shaft 500 includes a first reinforcing rib 510 disposed along its length, with the length of the first reinforcing rib 510 being equal to the length of the rotating shaft 500. For example, when the drive motor 100 rotates in the forward direction, the upper filter screen rotates at the rotating shaft 500, or when the drive motor 100 rotates in the reverse direction, the lower filter screen rotates at the rotating shaft 500. This indicates that the rotating shaft 500 must bear a significant supporting force. The provision of the first reinforcing rib 510 increases the support provided by the rotating shaft 500 to the filter screen 300 at the rotating position.

[0061] Optionally, there are multiple first reinforcing ribs 510, wherein the multiple first reinforcing ribs 510 are symmetrically arranged along the outer circumference of the rotating shaft 500. For example, the number of first reinforcing ribs 510 is 2, 3, or 4, and the multiple first reinforcing ribs 510 are symmetrically arranged along the outer circumference of the rotating shaft 500, as shown in Figure 13.

[0062] Optionally, the rotating shaft 500 further includes second reinforcing ribs 520 disposed radially along the rotating shaft 500, wherein the second reinforcing ribs 520 are connected to the first reinforcing ribs 510. As shown in FIG13 , the rotating shaft 500 includes a plurality of radially disposed second reinforcing ribs 520, each of which is disposed between two adjacent first reinforcing ribs 510, and each of which has its ends connected to the first reinforcing ribs 510.

[0063] Optionally, the bracket end 410 of the filter self-cleaning mechanism includes a first side surface facing the rotating shaft 500, wherein the first side surface is provided with an inwardly concave arcuate groove. While supporting the filter 300, the rotating shaft 500 may deform due to excessive force. The provision of the arcuate groove provides a safe gap between the rotating shaft 500 and the bracket end 410, ensuring that the rotating shaft 500 can smoothly support and rotate the filter 300. Optionally, the gap between the rotating shaft 500 and the first side surface of the bracket end 410 is 0.5-1 mm.

[0064] Optionally, the filter holder 400 has a certain thickness to separate the upper filter and the lower filter, thereby preventing the problem of excessive wind resistance caused by the distance between the upper filter and the lower filter being too small. Optionally, the thickness of the filter holder 400 is greater than or equal to 5 mm.

[0065] Optionally, the filter support 400 includes transverse support ribs and vertical support ribs, wherein the transverse support ribs include upper transverse support ribs and lower transverse support ribs disposed below the upper transverse support ribs, and the width of the upper transverse support ribs is greater than the width of the lower transverse support ribs. The vertical support ribs include upper vertical support ribs and lower vertical support ribs disposed below the upper vertical support ribs, and the width of the upper vertical support ribs is greater than the width of the lower vertical support ribs.

[0066] The filter support 400 includes transverse and longitudinal support ribs that are staggered horizontally and vertically. The upper transverse support ribs are located at the upper part, and the lower transverse support ribs are located at the lower part. In addition, the width of the upper transverse support ribs is greater than the width of the lower transverse support ribs. It can be understood that when projected from the top, the upper transverse support ribs can completely cover the lower transverse support ribs. Similarly, the upper vertical support ribs are located at the upper part, and the lower longitudinal support ribs are located at the lower part. In addition, the width of the upper longitudinal support ribs is greater than the width of the lower longitudinal support ribs. It can be understood that when projected from the top, the upper longitudinal support ribs can completely cover the lower longitudinal support ribs. In this way, during injection molding, the burrs generated by the injection molding of the filter support 400 do not directly contact the filter 300, which can prevent the filter 300 from being scratched.

[0067] The embodiment of the present disclosure further provides an air-conditioning indoor unit 600, comprising the aforementioned filter self-cleaning mechanism.

[0068] Optionally, the air conditioner indoor unit 600 can be an on-hook unit, and the filter self-cleaning mechanism is provided at the air inlet 610 of the air conditioner indoor unit 600. When a large amount of dust is detected on the surface of the filter 300, or when a preset cleaning time has arrived, the air conditioner can be controlled to start the filter self-cleaning mode when the air conditioner is idle to clean the dust accumulated on the filter 300.

[0069] When the air conditioner receives the filter self-cleaning instruction, it controls the driving assembly to rotate to drive the filter 300 to rotate, and at the same time drives the brush assembly to rotate, so that the filter 300 and the brush assembly move relative to each other, and the brush assembly cleans the dust on the filter 300.

[0070] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A filter self-cleaning mechanism, comprising: The filter screen has a first reel provided at the first end and a second reel provided at the second end, and the filter screen is stretched between the first reel and the second reel; A drive assembly includes a driving gear, a first driven gear, and a second driven gear, wherein the first driven gear is connected to the first reel, and the second driven gear is connected to the second reel. When the driving motor drives the driving gear to rotate, the first driven gear drives the first reel to rotate to reel in the first end of the filter screen, and the second driven gear drives the second reel to rotate to unreel the second end of the filter screen. A filter support, used to support the filter, and the filter support includes a support end portion at the filter rotation location; and, The rotating shaft is set at the end of the bracket and is used to support the rotation of the filter. Wherein, the diameter of the rotating shaft is greater than or equal to the support thickness of the end portion of the bracket.

2. The filter self-cleaning mechanism according to claim 1, wherein: The rotating shaft includes a first reinforcing rib arranged along the length direction of the rotating shaft, and the length of the first reinforcing rib is equal to the length of the rotating shaft.

3. The filter self-cleaning mechanism according to claim 2, wherein: There are multiple first reinforcing ribs, and the multiple first reinforcing ribs are symmetrically arranged along the outer circumference of the rotating shaft.

4. The filter self-cleaning mechanism according to claim 2, wherein: The rotating shaft further includes a second reinforcing rib arranged along the radial direction of the rotating shaft, and the second reinforcing rib is connected to the first reinforcing rib.

5. The filter self-cleaning mechanism according to any one of claims 1 to 4, wherein: The end portion of the bracket comprises a first side surface facing the rotating shaft, and the first side surface is provided with an inwardly recessed arc-shaped groove.

6. The filter self-cleaning mechanism according to claim 5, wherein: A preset distance is set between the rotating shaft and the first side surface.

7. The filter self-cleaning mechanism according to any one of claims 1 to 6, wherein: The filter bracket includes horizontal support ribs and vertical support ribs. The transverse support ribs include upper transverse support ribs and lower transverse support ribs provided below the upper transverse support ribs, and the width of the upper transverse support ribs is greater than the width of the lower transverse support ribs; and / or, The vertical support ribs include vertical support upper ribs and vertical support lower ribs arranged below the vertical support upper ribs, and the width of the vertical support upper ribs is greater than the width of the vertical support lower ribs.

8. The filter self-cleaning mechanism according to any one of claims 1 to 7, further comprising: The intermediate gear is meshed between the first driven gear and the second driven gear, and the first driven gear drives the second driven gear to rotate via the intermediate gear; Brush assembly, used to clean the filter during the winding process; and, The brush driven gear is used to drive the brush assembly to rotate, and the brush driven gear is meshed and connected with the driving gear.

9. The filter self-cleaning mechanism according to claim 8, further comprising a dust collection box and a base for mounting the drive assembly, wherein the brush assembly is mounted on the dust collection box; in, The base includes: A first mounting site is used to mount a first driven gear, and the first driven gear passes through the first mounting site and is connected to the first reel; A second mounting site is used for mounting a second driven gear, and the second driven gear passes through the second mounting site and is connected to the second reel; The third mounting position is used to install the intermediate gear. Among them, the first mounting site is provided with a first mounting platform with a first protrusion height, the second mounting site is provided with a second mounting platform with a second protrusion height, and the third mounting site is provided with a third mounting platform with a third protrusion height, and the first protrusion height or the second protrusion height is smaller than the third protrusion height.

10. An air conditioner indoor unit, comprising the filter self-cleaning mechanism according to any one of claims 1 to 9.

Images