Filter self-cleaning mechanism and air conditioner

Abstract

A filter self-cleaning mechanism and an air conditioner, which relate to the technical field of air conditioners. The filter self-cleaning mechanism comprises: a filter (100); a reel assembly (200), which comprises a first reel (210), a second reel (220) and an intermediate roller (230), wherein a first end of the filter (100) is wound around the first reel (210), a second end of the filter (100) is wound around the second reel (220), the intermediate roller (230) is supported in the middle of the filter (100), and the filter (100) is folded in half to form an upper screen face (105) and a lower screen face (106); and a frame assembly, which comprises an upper frame (300) and a lower frame (310), wherein the upper frame (300) supports the upper screen face (105), and the lower frame (310) supports the lower screen face (106).

Description

Filter self-cleaning mechanism and air conditioner

[0001] This application is based on Chinese patent application number 202420249679.7, filed on February 1, 2024, Chinese patent application number 202420253373.9, filed on February 1, 2024, and Chinese patent application number 202420249712.6, filed on February 1, 2024, and claims the priority of the above Chinese patent applications. The entire contents of the above Chinese patent applications are hereby introduced into this application as a reference. Technical Field

[0002] The present application relates to the technical field of air conditioners, for example, to a filter self-cleaning mechanism and an air conditioner. Background Art

[0003] Air conditioners typically have a filter at the air inlet to filter the air entering. However, after a period of use, the filter accumulates dust and other debris. If not cleaned promptly, the filter can become clogged, affecting airflow and breeding bacteria that can affect air quality.

[0004] 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

[0005] 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.

[0006] The embodiments of the present disclosure provide a filter self-cleaning mechanism and an air conditioner.

[0007] In some embodiments, the filter self-cleaning mechanism includes: a filter; a reel assembly, including a first reel, a second reel and an intermediate roller; wherein the first end of the filter is wound around the first reel, the second end of the filter is wound around the second reel, the intermediate roller is supported in the middle of the filter and the filter is folded in half to form an upper mesh surface and a lower mesh surface; and a bracket assembly, including an upper bracket and a lower bracket; wherein the upper bracket supports the upper mesh surface, and the lower bracket supports the lower mesh surface.

[0008] In some embodiments, the air conditioner includes the filter self-cleaning mechanism described in any embodiment.

[0009] 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

[0010] 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,

[0011] FIG1 is a schematic structural diagram of an air conditioner provided in an embodiment of the present disclosure;

[0012] FIG2 is a schematic structural diagram of a reel assembly provided by an embodiment of the present disclosure;

[0013] FIG3 is a schematic structural diagram of a bracket assembly provided in an embodiment of the present disclosure;

[0014] FIG4 is a schematic structural diagram of the upper surface and the lower surface provided by an embodiment of the present disclosure;

[0015] FIG5 is a schematic diagram of the mesh thickness of the filter provided in an embodiment of the present disclosure;

[0016] FIG6 is a schematic structural diagram of a mounting through hole provided in an embodiment of the present disclosure;

[0017] FIG7 is a schematic structural diagram of a receiving groove and an avoidance recess provided in an embodiment of the present disclosure;

[0018] FIG8 is a schematic structural diagram of a driving mechanism provided in an embodiment of the present disclosure;

[0019] FIG9 is an exploded schematic diagram of a dust collection box provided in an embodiment of the present disclosure;

[0020] FIG10 is a schematic diagram of the rotation of the upper box body provided in an embodiment of the present disclosure;

[0021] FIG11 is a schematic structural diagram of comb teeth provided in an embodiment of the present disclosure;

[0022] FIG12 is a schematic structural diagram of a roller brush shaft and a roller brush gear provided in an embodiment of the present disclosure;

[0023] FIG13 is a schematic diagram of the assembly of the extruded ribs and the extruded plane provided in an embodiment of the present disclosure.

[0024] Reference numerals: 100: filter screen; 101: first side edge; 102: second side edge; 103: third side edge; 104: fourth side edge; 105: upper mesh surface; 106: lower mesh surface; 110: mounting hole; 120: mesh frame; 200: reel assembly; 210: first reel; 211: receiving groove; 212: avoidance recess; 220: second reel; 230: intermediate roller; 300: upper bracket; 301: bracket buckle; 302: supporting rib; 303: stop protrusion; 304: roller plate; 305: partition plate; 310: lower bracket; 311: bracket hook; 400: driving motor; 401: driving gear; 410: first driven gear; 420: second driven gear; 430: intermediate gear; 500: Roller brush shaft; 501: Bristles; 510: Roller brush sleeve; 511: Flange; 520: Roller brush gear; 521: Extrusion rib; 522: Extrusion plane; 600: Upper box body; 601: First semicircular opening; 602: Roller brush opening; 603: Comb teeth; 604: Box body shaft; 605: Box body buckle; 610: Lower box body; 611: Second semicircular opening; 612: Box body rotating plate; 613: Box body shaft hole; 614: Box body hook; 700: Casing; 710: Air inlet. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Unless otherwise stated, the term "plurality" means two or more.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] As shown in Figure 1, an embodiment of the present disclosure provides an air conditioner comprising a housing 700 and a self-cleaning filter mechanism. The housing 700 is provided with an air inlet 710, and the self-cleaning filter mechanism is disposed within the housing 700 and located at the air inlet 710. The self-cleaning filter mechanism utilizes a filter 100 to filter air entering the housing 700 through the air inlet 710 and automatically cleans the filter 100.

[0035] As shown in Figures 2 to 13, an embodiment of the present disclosure provides a filter self-cleaning mechanism, including a filter 100, a reel assembly 200, and a bracket assembly. The reel assembly 200 includes a first reel 210, a second reel 220, and an intermediate roller 230. The first end of the filter 100 is wound around the first reel 210, the second end of the filter 100 is wound around the second reel 220, and the intermediate roller 230 is supported in the middle of the filter 100 and folds the filter 100 in half to form an upper mesh surface 105 and a lower mesh surface 106. The bracket assembly includes an upper bracket 300 and a lower bracket 310, wherein the upper bracket 300 supports the upper mesh surface 105, and the lower bracket 310 supports the lower mesh surface 106.

[0036] In this embodiment, when the first reel 210 is reeling and the second reel 220 is unreeling, the filter 100 moves toward the first reel 210. When the second reel 220 is reeling and the first reel 210 is unreeling, the filter 100 moves toward the second reel 220. Due to the layout of the first reel 210, the second reel 220, and the intermediate roller 230, the movement trajectory of the filter 100 forms a U-shaped rotation. Furthermore, the upper bracket 300 and the lower bracket 310 serve as a moving track supporting the filter 100. This ensures smooth movement of the filter 100, improving the cleaning effect of the filter 100.

[0037] Optionally, the upper bracket 300 is snap-connected to the lower bracket 310. In this way, the snap-connection design makes the assembly of the bracket assembly simpler and faster, and easy to disassemble and repair.

[0038] Optionally, as shown in Figure 3, bracket buckles 301 are provided on both sides of the upper bracket 300, and bracket hooks 311 are provided on both sides of the lower bracket 310, and the bracket hooks 311 correspond to the bracket buckles 301, so that the upper bracket 300 is connected to the bracket hooks 311 of the lower bracket 310 through the bracket buckles 301.

[0039] For example, a bracket clip 301 is provided on the front, middle, and rear portions of the first side of the upper bracket 300, respectively. Three corresponding bracket hooks 311 are provided on the first side of the lower bracket 310. The second side of the upper bracket 300 and the second side of the lower bracket 310 are arranged in the same manner. Thus, the first and second sides of the upper bracket 300 are respectively connected to the lower bracket 310 via the three bracket clips 301, thereby enhancing the connection strength between the upper and lower brackets 300 and 310.

[0040] Optionally, there is a bracket gap between the upper bracket 300 and the lower bracket 310. In this way, the lower mesh surface 106 is prevented from being clamped by the upper bracket 300 and the lower bracket 310, ensuring smooth movement of the filter screen 100.

[0041] 2 and 3 , the upper bracket 300 includes a support rib 302, the top of which is supported on the lower portion of the upper surface 105, and a stop protrusion 303 is provided on the bottom of the support rib 302. The end of the stop protrusion 303 is located in the bracket gap.

[0042] In this embodiment, the top of the support rib 302 plays a role in supporting the upper mesh surface 105, and the stop protrusion 303 plays a stopping role for the lower mesh surface 106. When the lower mesh surface 106 moves upward and conflicts with the stop protrusion 303, it cannot continue to move upward.

[0043] Optionally, the support ribs 302 include multiple horizontal ribs and multiple vertical ribs. The multiple horizontal ribs are arranged along the movement path of the filter screen 100. The multiple vertical ribs are arranged perpendicular to the horizontal ribs. The bottom of the vertical ribs is provided with a stop protrusion 303. In this way, the position of the stop protrusion 303 is more reasonable.

[0044] Optionally, as shown in Figure 3, corresponding roller plates 304 are provided on either side of the first end of the upper bracket 300. The ends of the intermediate roller 230 are rotatably mounted on the two roller plates 304. The roller plates 304 are provided with roller holes, into which the ends of the intermediate roller 230 fit.

[0045] Optionally, as shown in Figures 2 and 3, a partition plate 305 is further provided at the first end of the upper bracket 300. The upper mesh surface 105 extends from above the partition plate 305, and the lower mesh surface 106 extends from below the partition plate 305. Thus, the partition plate 305 separates the extension directions of the upper mesh surface 105 and the lower mesh surface 106, facilitating the upper extension of the upper bracket 300 and the lower extension of the lower mesh surface 106 to the lower bracket 310.

[0046] Optionally, both ends of the partition plate 305 are respectively connected to the two roller plates 304. In this way, the layout of the roller plates 304 and the partition plate 305 is made more compact.

[0047] In some embodiments, as shown in FIG8 , the filter self-cleaning mechanism includes a drive mechanism, which includes a drive motor 400 and a gear set. The gear set includes a driving gear 401, a first driven gear 410, a second driven gear 420, and an intermediate gear 430. The driving gear 401 is disposed on the drive shaft of the drive motor 400, the first driven gear 410 is disposed at the end of the first reel 210, the second driven gear 420 is disposed at the end of the second reel 220, and the intermediate gear 430 is disposed between the first driven gear 410 and the second driven gear 420. The drive motor 400 drives the first driven gear 410 to rotate via the driving gear 401, and the transmission is transmitted to the second driven gear 420 via the intermediate gear 430, thereby tensioning the filter 100 between the first reel 210 and the second reel 220. In this way, by controlling the rotation direction of the driving motor 400 , the second reel 220 can be unwound when the first reel 210 is reeled, or the second reel 220 can be reeled when the first reel 210 is unwound.

[0048] Alternatively, as shown in Figure 2, in the initial state, the filter 100 may be wound around the first reel 210 and the second reel 220 in the following manner: no filter 100 is wound around the first reel 210, while the filter 100 is wound around the second reel 220 to provide a winding margin. In this case, the winding point between the filter 100 and the second reel 220 is located on the right side. Under the action of the drive mechanism, as the first reel 210 reels and the second reel 220 unwinds, the filter 100 is gradually pulled away from the first reel 210.

[0049] In some embodiments, a self-cleaning filter mechanism includes a filter 100 and a reel assembly 200. A mesh frame 120 is provided at the first end of the filter 100. The reel assembly 200 includes a first reel 210, which defines a receiving slot 211. The mesh frame 120 is disposed within the receiving slot 211. Furthermore, the width of the slot 211 is smaller than the width of the mesh frame 120.

[0050] In this embodiment, the first end of the filter 100 is connected to the first reel 210 via the mesh frame 120. When the mesh frame 120 is assembled into the receiving slot 211, the mesh frame 120 is prevented from falling out of the slot 211 because the width of the slot 211 is smaller than the width of the mesh frame 120. This ensures the stability of the connection between the filter 100 and the first reel 210.

[0051] Here, the second reel 220 has the same structure as the first reel 210 . The second end of the filter 100 is also provided with a mesh frame 120 , and the mesh frame 120 is disposed in the receiving groove 211 of the second reel 220 .

[0052] Optionally, the receiving groove 211 extends along the axial direction of the first reel 210. In this way, when the first reel 210 winds the filter screen 100, the winding line is parallel to the axial direction of the first reel 210, which is conducive to uniformly winding the filter screen 100.

[0053] Optionally, the mesh frame 120 is constructed as a cylinder, and the width of the mesh frame 120 is the diameter of the cylinder. Here, the width of the notch of the accommodating groove 211 is consistent, and the width of the notch is smaller than the diameter of the cylinder.

[0054] Optionally, two opposite groove walls at the notch of the receiving groove 211 are provided with rounded corners, so as to avoid the groove walls at the notch being sharp and scratching the filter screen 100.

[0055] Optionally, as shown in Figure 7, a roller brush is provided below the first reel 210, the axial direction of the roller brush being arranged parallel to the axial direction of the first reel 210, and the bristles 501 of the roller brush are used to clean the filter screen 100 wound on the first reel 210. In this way, the arrangement of the roller brush is conducive to comprehensive cleaning of the filter screen 100.

[0056] Optionally, the interference distance between the bristles 501 of the roller brush and the first reel 210 is 0.5 to 2 mm. In this way, by setting the interference distance, the bristles 501 can also contact the filter 100 and clean it even when the filter 100 rolled up by the first reel 210 is thin.

[0057] Exemplarily, the interference distance may be selected as 0.5 mm, 0.8 mm, 1 mm, 1.2 mm, 1.4 mm, 1.5 mm, 1.7 mm, 1.9 mm or 2 mm.

[0058] Optionally, the first reel 210 is further provided with an avoidance recess 212. When the bristles 501 of the roller brush at the contact point with the first reel 210 are located in the avoidance recess 212, the bristles 501 at the contact point do not interfere with the first reel 210.

[0059] In this embodiment, when the first reel 210 does not reel in the filter screen 100 and the bristles 501 of the roller brush at the point of contact with the first reel 210 are located in the avoidance recess 212, the bristles 501 at the point of contact do not interfere with the first reel 210, that is, the bristles 501 at the point of contact are fully extended. This prevents the bristles 501 from interfering with the reel for a long time and bending, thereby extending the service life of the roller brush.

[0060] Optionally, the avoidance recess 212 extends along the axial direction of the first reel 210 .

[0061] Optionally, the escape recess 212 and the receiving groove 211 are formed on opposite sides of the first reel 210. As shown in FIG7 , when the filter 100 is tensioned and the first reel 210 is not reeling in the filter 100, the receiving groove 211 rotates directly above the first reel 210, and the escape recess 212 rotates directly below the first reel 210. At this time, the bristles 501 below, which are in contact with the first reel 210, rotate into the escape recess 212.

[0062] In some embodiments, the filter self-cleaning mechanism includes a filter 100. As shown in FIG5 , the filter 100 includes a first side edge 101 and a second side edge 102 that are opposed to each other. The first side edge 101 and the second side edge 102 are folded and heat-fused to form mounting holes 110. Two mesh frames 120 are inserted into the two mounting holes 110 to support the first side edge 101 and the second side edge 102 of the filter 100, respectively.

[0063] In this embodiment, the filter screen 100 is made of a relatively soft material, and mounting holes 110 are formed on the first and second side edges 101, 102 of the filter screen 100 using hot melt molding, which prevents the mounting holes 110 from deforming. Two mesh frames 120 are inserted into the two mounting holes 110, respectively, achieving a stable connection between the filter screen 100 and the mesh frames 120. This makes installation of the filter screen 100 very convenient.

[0064] Alternatively, as shown in FIG6 , the mounting hole 110 is configured as a circle, and the mesh frame 120 is configured as a cylinder that matches the mounting hole 110. Thus, the circular design allows for a tighter fit between the mounting hole 110 and the mesh frame 120, thereby reducing the possibility of the filter 100 becoming loose or shifting during use.

[0065] Optionally, the axes of the two mounting through holes 110 are arranged in parallel, so that the filter screen 100 can be wound or unwound more evenly by the first reel 210 or the second reel 220 .

[0066] Optionally, the axis of the mesh frame 120 is coaxially arranged with the axis of the corresponding mounting through hole 110 , so as to facilitate the mesh frame 120 to be inserted into the mounting through hole 110 .

[0067] Optionally, the intersections of the meshes of the filter screen 100 are connected by hot-melt connection, which is beneficial to improving the overall strength of the filter screen 100.

[0068] 5 , the filter screen 100 is rectangular after unfolding. The filter screen 100 further includes a third side edge 103 and a fourth side edge 104 opposite to each other, and the mesh thickness of the third side edge 103 and the fourth side edge 104 is greater than that of the mesh thickness of other parts of the filter screen 100.

[0069] That is, the mesh thickness of the third side edge 103 is greater than the coarser mesh thickness of the first side edge 101 or the second side edge 102, and the mesh thickness of the fourth side edge 104 is greater than the coarser mesh thickness of the first side edge 101 or the second side edge 102. Furthermore, the mesh thickness of the third side edge 103 is greater than the mesh thickness of the area enclosed by the four edges of the filter screen 100. Furthermore, the mesh thickness of the fourth side edge 104 is greater than the mesh thickness of the area enclosed by the four edges of the filter screen 100.

[0070] In this embodiment, the first side edge 101 is connected to the first reel 210 via a mesh frame 120, and the second side edge 102 is connected to the second reel 220 via a mesh frame 120. During the reeling or unreeling process of the filter screen 100, the third side edge 103 and the fourth side edge 104 are always exposed and are more susceptible to damage at the edges. Therefore, using thicker mesh for the third and fourth side edges 103, 104 helps extend the service life of the filter screen 100.

[0071] In some embodiments, the filter self-cleaning mechanism includes a roller brush and a dust box. The roller brush is used to clean the filter 100 and includes a roller brush shaft 500. The dust box is composed of an upper box body 600 and a lower box body 610 connected together. The connection between the upper and lower boxes 600 and 610 forms a roller brush shaft hole. Furthermore, the ends of the roller brush shaft 500 are mounted in the two roller brush shaft holes.

[0072] In this embodiment, the roller brush shaft 500 is mounted within the roller brush shaft hole, which can ensure that the roller brush is not easily shaken or tilted during use. In addition, after the upper box body 600 and the lower box body 610 are disconnected, the roller brush can be easily removed and replaced, thereby improving the maintainability and service life of the roller brush.

[0073] Optionally, as shown in Figure 9, the upper housing 600 has downward-facing first semicircular openings 601 on both sides, and the lower housing 610 has upward-facing second semicircular openings 611 on both sides. Furthermore, when the upper housing 600 and the lower housing 610 are connected, the first semicircular openings 601 and the second semicircular openings 611 on the same side enclose the roller brush shaft hole. The first semicircular openings 601 and the second semicircular openings 611 have the same diameter.

[0074] In this embodiment, after the upper and lower housings 600 and 610 are connected, the first and second semicircular openings 601 and 611 are aligned to form the roller brush shaft hole. When the upper housing 600 is removed, the roller brush shaft 500 is positioned above the second semicircular opening 611, making it easy to remove and replace the roller brush.

[0075] Optionally, a roller brush driving assembly is provided at the first end of the roller brush shaft 500, and the roller brush driving assembly is used to drive the roller brush shaft 500 to rotate. In this way, the bristles 501 clean the filter screen 100 when the roller brush shaft 500 rotates.

[0076] Optionally, the roller brush drive assembly includes a roller brush gear 520. The roller brush gear 520 is sleeved onto the first end of the roller brush shaft 500 and is located outside the dust collection box. Rotation of the roller brush gear 520 drives the roller brush shaft 500 to rotate. Positioning the roller brush gear 520 outside the dust collection box prevents dust accumulation.

[0077] Optionally, as shown in FIG8 , the roller brush gear 520 is engaged with the driving gear 401 of the drive motor 400 . When the drive motor 400 rotates, the roller brush gear 520 is driven to rotate. In this way, the drive motor 400 can simultaneously drive the first reel 210 , the second reel 220 , and the roller brush shaft 500 to rotate, thereby using the bristles 501 to clean the filter screen 100 during the process of rewinding or unwinding the filter screen 100 .

[0078] Optionally, a roller brush shaft sleeve 510 is further provided at the first end of the roller brush shaft 500. The roller brush shaft sleeve 510 is located on the side of the roller brush gear 520 facing the dust collection box and is disposed in the roller brush shaft hole. This helps reduce wear on the roller brush shaft 500 and the roller brush shaft hole.

[0079] Optionally, the roller brush shaft sleeve 510 is integrally formed with the roller brush gear 520. In this way, the roller brush shaft sleeve 510 rotates synchronously with the roller brush gear 520.

[0080] Optionally, as shown in FIG11 , flanges 511 are provided on both sides of the roller brush sleeve 510. One flange 511 is located inside the dust box and abuts against the inner wall of the dust box, while the other flange 511 is located outside the dust box and abuts against the outer wall of the dust box. This can limit the axial displacement of the roller brush sleeve 510, ensuring that the roller brush sleeve 510 is always located within the roller brush shaft hole.

[0081] Optionally, the two flanges 511 are both configured as circular rings with the same diameter, which is convenient for production.

[0082] In some embodiments, the filter self-cleaning mechanism includes a dust box. The dust box is used to collect dust from the filter 100 and includes an upper box body 600 and a lower box body 610. As shown in Figures 9 and 10, the first side of the upper box body 600 is connected to the lower box body 610 via a box body shaft 604, and the upper box body 600 is rotatable around the box body shaft 604. The second side of the upper box body 600 is connected to the lower box body 610 via a box body buckle 605.

[0083] In this embodiment, the dust box adopts a split design, consisting of an upper box body 600 and a lower box body 610. During assembly, the first side of the upper box body 600 is first connected to the lower box body 610 via the box body rotation axis 604. Then, the second side of the upper box body 600 is rotated about the box body rotation axis 604 toward the lower box body 610. Finally, the second side of the upper box body 600 is snapped onto the lower box body 610 via the box body buckle 605. This allows for easy disassembly of the dust box, facilitating maintenance of the internal components and convenient cleaning or emptying of dust from the dust box.

[0084] Optionally, as shown in FIG10 , a case shaft 604 is provided at each end of the first side of the upper case 600, and a case shaft hole 613 is provided at each end of the first side of the lower case 610. The two case shafts 604 are rotatably disposed in the two case shaft holes 613. In this way, the upper case 600 can stably rotate about the two case shafts 604.

[0085] Optionally, both ends of the first side of the lower case 610 protrude upward to form a case rotating plate 612, and a case shaft hole 613 is defined in the case rotating plate 612. A mounting notch is defined through the sidewall of the case shaft hole 613, through which the case shaft 604 is assembled. This allows the case shaft 604 to be assembled simply by inserting it into the case shaft hole 613 through the notch.

[0086] Optionally, as shown in FIG9 , a case buckle 605 is provided at each end of the second side of the upper case 600, and a case hook 614 is provided at each end of the second side of the lower case 610. The two case hooks 614 can be respectively engaged with the two case buckles 605. Thus, the two case buckles 605 improve the stability of the connection between the upper case 600 and the lower case 610.

[0087] Optionally, a roller brush opening 602 is provided at the top of the upper housing 600. The roller brush is positioned within the dust collection box, with its bristles 501 extending out of the dust collection box through the roller brush opening 602. Thus, the filter 100 is positioned above the roller brush opening 602. As the roller brush rotates, the bristles 501 sweep the filter 100, and the swept dust falls into the dust collection box.

[0088] Optionally, a plurality of comb teeth 603 are provided on both sides of the roller brush opening 602 , and the plurality of comb teeth 603 are evenly arranged along the axial direction of the roller brush.

[0089] In this embodiment, as the roller brush rotates, the bristles 501 pass through the gaps between adjacent comb teeth 603. Dust on the bristles 501 is combed away by the comb teeth 603. The multiple comb teeth 603 are evenly arranged along the axial direction of the roller brush, facilitating uniform cleaning of the bristles 501. Furthermore, after removing the upper housing 600, the comb teeth 603 can be thoroughly cleaned.

[0090] Optionally, as shown in FIG11 , the comb teeth 603 are inclined from the sidewall of the roller brush opening 602 toward the bottom of the lower housing 610. The comb teeth 603 on both sides of the roller brush opening 602 have the same inclination angle. This inclined design of the comb teeth 603 facilitates dust on the comb teeth 603 to slide down into the lower housing 610.

[0091] In some embodiments, the self-cleaning filter mechanism includes a wheel and axle assembly. The wheel and axle assembly includes a gear and a gear shaft. The gear has a shaft hole, and the gear shaft is assembled into the shaft hole. As shown in Figures 12 and 13, an extrusion rib 521 is provided in the shaft hole, and an extrusion flat surface 522 is provided on the portion of the gear shaft located in the shaft hole. The extrusion rib 521 can form an interference fit with the extrusion flat surface 522.

[0092] In this embodiment, when assembling the wheel axle assembly, align the extrusion plane 522 with the extrusion rib 521, and then extend the gear shaft into the shaft hole. At this time, the extrusion rib 521 is partially crushed, and the gear shaft and the shaft hole form an interference fit. In this way, relative rotation between the gear shaft and the gear can be effectively prevented. Here, the extrusion rib 521 and the extrusion plane 522 can be used to form an interference fit between the first driven gear 410 and the first scroll 210 (as a gear shaft), the second driven gear 420 and the second scroll 220 (as a gear shaft), and the roller brush gear 520 and the roller brush shaft 500 (as a gear shaft), thereby ensuring the reliable operation of the entire filter self-cleaning mechanism.

[0093] Optionally, the length of the extrusion rib 521 is the same as the length of the extrusion plane 522. The length of the extrusion plane 522 is the same as the depth of the shaft hole. In this way, the contact area between the extrusion rib 521 and the extrusion plane 522 is larger, thereby improving the strength of the interference fit.

[0094] Optionally, the extrusion rib 521 is configured as a rectangle.

[0095] Optionally, the height of the extrusion rib 521 is 0.2 to 0.6 mm. In this way, the strength of the interference fit can be improved by limiting the height of the extrusion rib 521.

[0096] For example, the height of the extrusion rib 521 can be selected to be 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, 0.55 mm or 0.6 mm.

[0097] Optionally, the width of the extrusion rib 521 is 0.3 to 0.7 mm. In this way, the strength of the interference fit can be improved by limiting the width of the extrusion rib 521.

[0098] Illustratively, the width of the extruded rib 521 may be selected to be 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, 0.55 mm, 0.6 mm, 0.65 mm, or 0.7 mm.

[0099] Optionally, the extrusion rib 521 is configured as a triangle, with the corner vertices of the extrusion rib 521 facing the extrusion plane 522. In this way, the triangular extrusion rib 521 can form an interference fit with the extrusion plane 522.

[0100] Optionally, a plurality of extrusion ribs 521 are provided in the shaft hole, and all of the extrusion ribs 521 can form an interference fit with the extrusion plane 522. In this way, the strength of the interference fit can be improved by increasing the number of the extrusion ribs 521.

[0101] 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: filter (100); A reel assembly (200) comprises a first reel (210), a second reel (220) and an intermediate roller (230); wherein the first end of the filter screen (100) is wound around the first reel (210), the second end of the filter screen (100) is wound around the second reel (220), and the intermediate roller (230) is supported at the middle of the filter screen (100) and folds the filter screen (100) in half to form an upper surface (105) and a lower surface (106); and The support assembly comprises an upper support (300) and a lower support (310); wherein the upper support (300) supports the upper mesh surface (105), and the lower support (310) supports the lower mesh surface (106).

2. The filter self-cleaning mechanism according to claim 1, wherein: The upper bracket (300) is clamped to the lower bracket (310).

3. The filter self-cleaning mechanism according to claim 2, wherein: The upper bracket (300) is provided with bracket buckles (301) on both sides, and the lower bracket (310) is provided with bracket hooks (311) on both sides, and the bracket hooks (311) correspond to the bracket buckles (301), so that the lower bracket (310) is connected to the buckles of the upper bracket (300) through the bracket hooks (311).

4. The filter self-cleaning mechanism according to any one of claims 1 to 3, wherein: There is a bracket gap between the upper bracket (300) and the lower bracket (310).

5. The filter self-cleaning mechanism according to claim 4, wherein: The upper bracket (300) includes a supporting rib (302), the top of the supporting rib (302) is supported on the lower part of the upper surface (105), and the bottom of the supporting rib (302) is provided with a stop protrusion (303); The end of the stop protrusion (303) is located in the bracket gap.

6. The filter self-cleaning mechanism according to claim 5, wherein: The supporting ribs (302) include: A plurality of transverse ribs are arranged along the movement trajectory of the filter screen (100); and Multiple vertical bars are arranged perpendicular to the horizontal bars; Wherein, a stop protrusion (303) is provided at the bottom of the vertical rib.

7. The filter self-cleaning mechanism according to any one of claims 1 to 6, wherein: Corresponding roller plates (304) are provided on both sides of the first end of the upper bracket (300), and both ends of the middle roller (230) are rotatably mounted on the two roller plates (304).

8. The filter self-cleaning mechanism according to claim 7, wherein: A partition plate (305) is further provided at the first end of the upper bracket (300), the upper mesh surface (105) extends from above the partition plate (305), and the lower mesh surface (106) extends from below the partition plate (305).

9. The filter self-cleaning mechanism according to claim 8, wherein: Both ends of the partition plate (305) are connected to the two roller plates (304) respectively.

10. The filter self-cleaning mechanism according to any one of claims 1 to 9, wherein: A mesh frame (120) is provided at the first end of the filter screen (100); The first reel (210) of the reel assembly (200) is provided with a receiving groove (211), and the mesh frame (120) is arranged in the receiving groove (211); and The width of the slot of the accommodating slot (211) is smaller than the width of the mesh frame (120).

11. The filter self-cleaning mechanism according to claim 10, wherein: The accommodating groove (211) extends along the axial direction of the first reel (210).

12. The filter self-cleaning mechanism according to claim 10 or 11, wherein: The mesh frame (120) is constructed in a cylindrical shape, and the width of the mesh frame (120) is the diameter of the cylinder.

13. The filter self-cleaning mechanism according to any one of claims 10 to 12, wherein: Two opposite groove walls at the groove opening of the accommodating groove (211) are provided with rounded corners.

14. The filter self-cleaning mechanism according to any one of claims 1 to 13, wherein: A roller brush is provided below the first reel (210), and the axial direction of the roller brush is arranged parallel to the axial direction of the first reel (210). The bristles (501) of the roller brush clean the filter screen (100) wound on the first reel (210).

15. The filter self-cleaning mechanism according to claim 14, wherein: The interference distance between the bristles (501) of the roller brush and the first scroll (210) is 0.5 to 2 mm.

16. The filter self-cleaning mechanism according to claim 14 or 15, wherein: The first scroll (210) is further provided with an avoidance recess (212); when the bristles (501) of the roller brush at the contact point with the first scroll (210) are located in the avoidance recess (212), the bristles (501) at the contact point do not interfere with the first scroll (210).

17. The filter self-cleaning mechanism according to claim 16, wherein: The avoidance recess (212) extends along the axial direction of the first reel (210).

18. The filter self-cleaning mechanism according to claim 16, wherein: The avoidance recess (212) and the accommodating groove (211) are oppositely opened on two sides of the side surface of the first reel (210).

19. The filter self-cleaning mechanism according to any one of claims 1 to 18, wherein: The filter screen (100) comprises a first side edge (101) and a second side edge (102) opposite to each other, and the first side edge (101) and the second side edge (102) are respectively folded and hot-fused to form a mounting through hole (110); The filter screen self-cleaning mechanism further comprises two mesh frames (120) which are respectively inserted into the two mounting through holes (110) to respectively support the first side edge (101) and the second side edge (102) of the filter screen (100).

20. The filter self-cleaning mechanism according to claim 19, wherein: The mounting through hole (110) is constructed in a circular shape, and the mesh frame (120) is constructed in a cylindrical shape that matches the mounting through hole (110).

21. The filter self-cleaning mechanism according to claim 19 or 20, wherein: The axes of the two mounting through holes (110) are arranged in parallel.

22. The filter self-cleaning mechanism according to any one of claims 19 to 21, wherein: The axis of the mesh frame (120) is coaxially arranged with the axis of the corresponding mounting through hole (110).

23. The filter self-cleaning mechanism according to any one of claims 19 to 22, wherein: The filter screen (100) further comprises a third side edge (103) and a fourth side edge (104) opposite to each other, wherein the mesh of the third side edge (103) has a coarser mesh thickness than the coarser mesh of the first side edge (101) or the second side edge (102), and the mesh of the fourth side edge (104) has a coarser mesh thickness than the coarser mesh of the first side edge (101) or the second side edge (102).

24. The filter self-cleaning mechanism according to any one of claims 19 to 23, wherein: The reel assembly (200) reels or unreels the first side edge (101) and the second side edge (102) of the filter screen (100).

25. The filter self-cleaning mechanism according to claim 24, wherein: The reel assembly (200) comprises a first reel (210) and a second reel (220); wherein the first side edge (101) is connected to the first reel (210) via a mesh frame (120), and the second side edge (102) is connected to the second reel (220) via a mesh frame (120).

26. The filter self-cleaning mechanism according to any one of claims 1 to 25, wherein: The intersections of the meshes of the filter screen (100) are connected by hot melting.

27. The filter self-cleaning mechanism according to any one of claims 1 to 26, wherein: The filter screen (100) is rectangular when unfolded.

28. An air conditioner comprising the filter self-cleaning mechanism according to any one of claims 1 to 27.

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