Air conditioner indoor unit air inlet filtering mechanism and air conditioner

Abstract

The application provides an air conditioner indoor unit air inlet filtering mechanism and an air conditioner, and relates to the technical field of air conditioners, to solve the problem that a dust removal brush for cleaning a filter screen is easily damaged. The air conditioner indoor unit air inlet filtering mechanism comprises a filter screen, a winding assembly, an upper cover and a dust removal assembly. The winding assembly is arranged in the upper cover and comprises a winding shaft fixedly connected with one end of the filter screen. The dust removal assembly comprises a dust collection box and a dust removal brush. The dust collection box is connected to the upper cover and corresponds to the winding assembly. The dust removal brush is configured to be driven by the peripheral surface of the filter screen wound on the winding shaft to move. The air conditioner indoor unit air inlet filtering mechanism can improve the service life of the dust removal brush.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to an air conditioner indoor unit air inlet filtering mechanism and an air conditioner. BACKGROUND

[0002] At the air inlet of the air conditioner indoor unit, a filter screen is usually arranged to filter the air inlet of the air conditioner indoor unit and reduce the dust entering the interior of the air conditioner. With the continuous use of the filter screen, the dust on the filter screen gradually accumulates, and when the accumulation reaches a certain extent, the air inlet efficiency will be significantly reduced. Therefore, some existing air conditioners are provided with a filter screen that can be wound and unwound, that is, when a part of the filter screen has too much dust, this part of the filter screen will be wound, and a part of the new filter screen will be released to the air inlet, so as to control the air inlet resistance of the air conditioner indoor unit.

[0003] However, the dust on the wound filter screen may also fall off the filter screen and fall into the interior of the air conditioner indoor unit. Although some air conditioners use a brush to brush off the dust on the filter screen, since the diameter of the wound filter screen gradually increases when it is wound, the compression of the brush is significantly increased, and the brush is easily damaged. SUMMARY

[0004] The first object of the present application is to provide an air conditioner indoor unit air inlet filtering mechanism to solve the technical problem of the damage of the dust removal brush for cleaning the filter screen.

[0005] The air conditioner indoor unit air inlet filtering mechanism provided by the present application comprises a filter screen, a winding assembly, an upper cover and a dust removal assembly, the winding assembly is arranged in the upper cover, the winding assembly comprises a winding shaft fixedly connected to one end of the filter screen, the dust removal assembly comprises a dust collection box and a dust removal brush, the dust collection box is connected to the upper cover and corresponds to the winding assembly, and the dust removal brush is configured to be driven by the peripheral surface of the filter screen wound on the winding shaft to move.

[0006] The air conditioner indoor unit air inlet filtering mechanism provided by the present application has the following beneficial effects:

[0007] By configuring the dust removal brush to be driven by the peripheral surface of the filter screen wound on the winding shaft to move, when the winding shaft winds the filter screen, the diameter of the filter screen wound on the winding shaft increases, the dust removal brush is driven by the peripheral surface of the filter screen wound thereon, and moves away from the axis of the winding shaft. Thus, the pressure of the dust removal brush acting on the outer peripheral surface of the filter screen can be kept relatively stable, and the brush hairs of the dust removal brush will not be damaged due to the significant increase in pressure caused by the increasing diameter of the filter screen wound on the winding shaft. Therefore, the service life of the dust removal assembly is improved, and the wound filter screen can be effectively cleaned.

[0008] Preferably, the dust removal assembly further comprises an elastic member, one end of the elastic member is connected to the dust collecting box, and the other end of the elastic member abuts against the dust removal brush.

[0009] By connecting one end of the elastic member to the dust collecting box and abutting the other end of the elastic member against the dust removal brush, an acting force can be applied to the dust removal brush, so that the bristles of the dust removal brush contact the filter screen wound on the winding shaft and maintain appropriate acting force, and the cleaning ability of dust on the filter screen can be improved.

[0010] Preferably, the dust removal brush is arranged in sliding relationship with the dust collecting box, one of the end face of the inner wall of the dust collecting box and the end of the dust removal brush is provided with a convex guide portion, and the other is provided with a concave guide portion, and the convex guide portion cooperates with the concave guide portion.

[0011] By arranging the guide structure composed of the cooperating convex guide portion and concave guide portion between the end face of the inner wall of the dust collecting box and the end of the dust removal brush, it can be ensured that the dust removal brush does not swing around the length direction of the dust removal brush or swing in the plane where the radial direction and the axial direction of the winding shaft are located when moving up and down during being pressed by the filter screen, so that the bristles of the dust removal brush can uniformly contact the filter screen, and local bristle pressure caused by the inclination of the dust removal brush can be avoided.

[0012] Preferably, the end face of the inner wall of the dust collecting box is provided with a guide groove, the convex guide portion is arranged at the end of the dust removal brush, and the top of the guide groove is provided with an anti-disengagement structure.

[0013] By arranging the anti-disengagement structure at the top of the guide groove, the movement distance of the convex guide portion of the dust removal brush in the guide groove can be prevented from being too large, and the maximum distance of the upward movement of the dust removal brush can be limited, so that the dust removal brush driven by the elastic member can be prevented from applying too large distance to the filter screen, and the pressure between the bristles of the dust removal brush and the filter screen can be prevented from being too large to cause damage to the bristles.

[0014] Preferably, the elastic member is a spring piece, both ends of the length direction of the spring piece abut against the inner wall of the bottom of the dust collecting box, and the middle part of the spring piece abuts against the dust removal brush.

[0015] Since the increase process of the winding diameter of the filter screen is long-term and continuous, the elastic member needs to be stressed for a long time, and the spring piece is selected as the elastic member, which can well adapt to this long-term stress environment. By abutting both ends of the length direction of the spring piece against the inner wall of the bottom of the dust collecting box and abutting the middle part of the spring piece against the dust removal brush, the dust removal brush has a larger area to receive the acting force of the spring piece, and the stability of the stress of the dust removal brush can be improved, so that the dust removal brush can more uniformly apply the acting force to the filter screen in the length direction, and the cleaning effect of the dust attached to the filter screen can be improved.

[0016] In the preferred technical solution, the side of the dust removal brush facing the elastic member is provided with a first positioning column, and the elastic member is provided with a positioning hole, and the first positioning column matches the positioning hole.

[0017] By arranging the first positioning column and matching the first positioning hole on the elastic member, the horizontal position of the dust removal brush can be controlled by matching the dust removal brush and the dust collecting box, and then the horizontal position of the elastic member is limited by the horizontal position of the dust removal brush, so as to prevent the elastic member from moving in the horizontal direction.

[0018] In the preferred technical solution, the dust removal brush is provided with a first clamping tongue, and the elastic member is provided with a first clamping hole, and the first clamping tongue is clamped in the first clamping hole.

[0019] By arranging the first clamping tongue of the dust removal brush clamped in the first clamping hole, not only the rotation of the elastic member relative to the dust removal brush is limited, but also the elastic member can be prevented from being separated downward from the dust removal brush, thereby improving the reliability of the dust removal assembly.

[0020] In the preferred technical solution, the dust collecting box is provided with a second clamping tongue on the side of the filter screen in the winding direction, and the upper cover is provided with a second clamping hole, and the second clamping tongue is clamped in the second clamping hole; the dust collecting box is provided with a third clamping tongue on the side of the filter screen in the unwinding direction, and the upper cover is provided with a third clamping hole, and the third clamping tongue is clamped in the third clamping hole; at least one of the second clamping tongue and the third clamping tongue is exposed from the upper cover.

[0021] By arranging the combination of the second clamping tongue and the second clamping hole, and the cooperation of the third clamping tongue and the third clamping hole, the side of the dust collecting box in the winding direction and the side of the dust collecting box in the unwinding direction can be respectively fixed with the upper cover, so as to ensure that the dust collecting box can be reliably installed on the upper cover. Moreover, by exposing at least one of the second clamping tongue or the third clamping tongue from the upper cover, when it is necessary to remove the dust collecting box from the upper cover, as long as the corresponding second clamping tongue and / or third clamping tongue is pressed to contact the fixing between the clamping tongue and the clamping hole through the second clamping hole and / or third clamping hole of the upper cover, the side of the dust collecting box can be separated from the upper cover, and then the other side can be separated very conveniently, thereby improving the convenience of removing the dust collecting box, and facilitating the cleaning of dust in the dust collecting box, so as to ensure the cleaning of the dust collecting box.

[0022] In the preferred technical solution, the inner wall of the dust collecting box is provided with a second positioning column protruding upward, and the second positioning column is correspondingly arranged with the third clamping tongue.

[0023] By setting the second positioning column corresponding to the third clamping tongue, the third clamping tongue can be prevented from moving in a direction away from the second clamping hole, especially when the clamping directions of the second clamping tongue and the third clamping tongue relative to the second clamping hole and the third clamping hole are consistent, the dust collecting box can be limited only in a positive direction of a certain horizontal direction, and when the dust collecting box cannot be limited in a reverse direction of the horizontal direction, the second positioning column is used for limiting to prevent the dust collecting box from falling off the upper cover.

[0024] The second object of the present application is to provide an air conditioner to solve the technical problem of easy damage of the dust cleaning brush for filter cleaning.

[0025] The air conditioner provided by the present application comprises an air conditioner indoor unit, and the air conditioner indoor unit comprises an air inlet and the air conditioner indoor unit air inlet filtering mechanism of any one of the above.

[0026] By setting the air conditioner indoor unit air inlet filtering mechanism in the air conditioner, the air conditioner has all the advantages of the air conditioner indoor unit air inlet filtering mechanism, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments or the background art, the drawings needed in the embodiments or the background art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Figure 1 The structural schematic diagram of the air conditioner indoor unit air inlet filtering mechanism provided by the first embodiment of the present application;

[0029] Figure 2 The structural schematic diagram of the air conditioner indoor unit air inlet filtering mechanism provided by the first embodiment of the present application from another direction;

[0030] Figure 3 The schematic diagram of the air conditioner indoor unit air inlet filtering mechanism provided by the first embodiment of the present application is partially disassembled;

[0031] Figure 4 The three-dimensional exploded view of the air conditioner indoor unit air inlet filtering mechanism provided by the first embodiment of the present application;

[0032] Figure 5 The three-dimensional exploded view of the air conditioner indoor unit air inlet filtering mechanism provided by the first embodiment of the present application from another direction;

[0033] Figure 6 The structural schematic diagram of the dust removal assembly in the air conditioner indoor unit air inlet filtering mechanism provided by the first embodiment of the present application;

[0034] Figure 7 A perspective sectional view of a dust removal assembly in the air inlet filtering mechanism of the indoor unit of the air conditioner according to Embodiment One of the present application is shown in Figure 1.

[0035] Figure 8 A structure schematic view of the combination of the dust removal brush and the elastic member in the air inlet filtering mechanism of the indoor unit of the air conditioner according to Embodiment One of the present application is shown in Figure 2.

[0036] Figure 9 A structure schematic view of the separation of the dust removal brush and the elastic member in the air inlet filtering mechanism of the indoor unit of the air conditioner according to Embodiment One of the present application is shown in Figure 3.

[0037] Figure 10 A structure schematic view of the dust collection box in the air inlet filtering mechanism of the indoor unit of the air conditioner according to Embodiment One of the present application is shown in Figure 4.

[0038] Figure 11 A structure schematic view of the upper cover in the air inlet filtering mechanism of the indoor unit of the air conditioner according to Embodiment One of the present application is shown in Figure 5 from an oblique lower side.

[0039] Explanation of Reference Signs:

[0040] 100 - filter screen

[0041] 200 - winding assembly; 210 - winding shaft

[0042] 300 - upper cover; 310 - second clamping hole; 320 - third clamping hole

[0043] 400 - dust removal assembly; 410 - dust collection box; 411 - guide groove; 413 - anti-disengagement structure; 415 - second clamping tongue; 417 - third clamping tongue; 419 - second positioning column; 420 - dust removal brush; 421 - brush body; 423 - bristles; 425 - convex guide portion; 427 - first positioning column; 429 - first clamping tongue; 430 - elastic member; 431 - positioning hole; 433 - first clamping hole; 435 - bent portion DETAILED DESCRIPTION

[0044] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0045] Embodiment One

[0046] Figure 1 A structure schematic view of the air inlet filtering mechanism of the indoor unit of the air conditioner according to Embodiment One of the present application is shown in Figure 1. Figure 2 A structure schematic view of the air inlet filtering mechanism of the indoor unit of the air conditioner according to Embodiment One of the present application is shown in Figure 2 from another direction. Figure 3A partially exploded schematic view of the air inlet filtering mechanism of the indoor unit of the air conditioner according to Embodiment One of the present application is shown in Figure 1. Figure 4 A perspective exploded view of the air inlet filtering mechanism of the indoor unit of the air conditioner according to Embodiment One of the present application is shown in Figure 2. Figure 5 A perspective exploded view of the air inlet filtering mechanism of the indoor unit of the air conditioner according to Embodiment One of the present application is shown in Figure 3. Figures 1-5 As shown in Figure 3, the air inlet filtering mechanism of the indoor unit of the air conditioner according to Embodiment One of the present application comprises a filter screen 100, a winding assembly 200, an upper cover 300 and a dust removing assembly 400. The winding assembly 200 is arranged in the upper cover 300, and the winding assembly 200 comprises a winding shaft 210 fixedly connected to one end of the filter screen 100. The dust removing assembly 400 comprises a dust collecting box 410 and a dust removing brush 420. The dust collecting box 410 is connected to the upper cover 300 and corresponds to the winding assembly 200. The dust removing brush 420 is configured to be driven by the circumferential surface of the filter screen 100 wound on the winding shaft 210 to move.

[0047] In this embodiment, the indoor unit of the air conditioner is a wall-mounted indoor unit of the air conditioner. The air inlet of the wall-mounted indoor unit of the air conditioner is arranged at the top of the body. The upper cover 300 is installed at the top of the middle frame. The upper cover 300 mainly has two accommodation spaces, i.e., a first accommodation space and a second accommodation space. The first accommodation space is mainly used for accommodating the unwinding assembly, and the second accommodation space is mainly used for accommodating the winding assembly 200. The dust collecting box 410 is arranged correspondingly to the winding assembly 200. Specifically, the dust collecting box 410 is located below the second accommodation space and is connected to the upper cover 300.

[0048] In this embodiment, the dust removing brush 420 is movably arranged in the dust collecting box 410. The dust removing brush 420 is in contact with the filter screen 100 wound on the winding shaft 210. When the winding shaft 210 rotates, the dust on the filter screen 100 wound on the winding shaft 210 is cleaned by the bristles 423.

[0049] By configuring the dust removing brush 420 to be driven by the circumferential surface of the filter screen 100 wound on the winding shaft 210 to move, when the winding shaft 210 winds the filter screen 100, the winding diameter of the filter screen 100 wound on the winding shaft 210 increases, and the dust removing brush 420 is driven by the circumferential surface of the filter screen 100 wound thereon and moves away from the axis of the winding shaft 210. Thus, the pressure of the dust removing brush 420 acting on the outer circumferential surface of the filter screen 100 can be kept relatively stable, and the bristles 423 of the dust removing brush 420 will not be damaged due to the significant increase in pressure caused by the increasing winding diameter of the filter screen 100 wound on the winding shaft 210. Therefore, the service life of the dust removing assembly 400 is improved, and the wound filter screen 100 can be effectively cleaned.

[0050] As shown in Figure 4, Figure 4 and Figure 5As shown, preferably, the dust removal assembly 400 further comprises an elastic member 430, one end of the elastic member 430 is connected to the dust collection box 410, and the other end of the elastic member 430 abuts against the dust removal brush 420.

[0051] It should be noted that, in the embodiment, the one end of the elastic member 430 and the other end of the elastic member 430 do not refer to the opposite ends of the elastic member 430 in the length direction of the elastic member 430. It is possible that both the opposite ends of the elastic member 430 in the length direction of the elastic member 430 are connected to the dust collection box 410, and both are regarded as the one end of the elastic member 430, and the middle part of the elastic member 430, i.e. the other end of the elastic member 430, abuts against the dust removal brush 420.

[0052] The dust removal brush 420 comprises a brush body 421 and a plurality of bristles 423 arranged in a matrix on the brush body 421. The brush body 421 abuts against the elastic member 430, and the bristles 423 are in contact with the circumferential surface of the filter screen 100 to brush off the dust attached to the filter screen 100.

[0053] By connecting one end of the elastic member 430 to the dust collection box 410 and abutting the other end of the elastic member 430 against the dust removal brush 420, an acting force can be applied to the dust removal brush 420, so that the bristles 423 of the dust removal brush 420 are in contact with the filter screen 100 wound on the winding shaft 210 and maintain a proper acting force, which can improve the cleaning ability of the dust on the filter screen 100.

[0054] In another implementation, the elastic member 430 can not be provided, and gravity can be used to drive the bristle end of the dust removal brush 420 to maintain contact with the circumferential surface of the filter screen 100. Specifically, a slot can be provided on the end of the upper shell and slant downwardly, and the dust removal brush 420 is slidingly arranged in the slot. The component force generated by gravity can make the dust removal brush 420 slide to the slant downward to make the bristles 423 contact the filter screen 100. The dust and the like brushed off from the filter screen 100 by the bristles 423 can fall into the dust collection box 410 from the horizontal side of the filter screen 100.

[0055] As shown in Figure 6 and Figure 7 Preferably, the dust removal brush 420 is slidingly arranged opposite to the dust collection box 410, and one of the end surface of the inner wall of the dust collection box 410 and the end of the dust removal brush 420 is provided with a convex guide portion 425, and the other is provided with a concave guide portion, and the convex guide portion 425 cooperates with the concave guide portion.

[0056] Specifically, in this embodiment, the dust removal brush 420 is roughly U-shaped, with the length of the top beam significantly greater than the height of the U-shape. Brush bristles 423 are provided on the upper surface of the top beam, while the two arms of the U-shape have a guide structure between them and the inner wall end face of the dust collection box 410, where a convex guide portion 425 cooperates with a concave guide portion. Of course, in this embodiment, to enhance the rigidity of the brush body 421, reinforcing ribs can be provided on the bottom surface of the brush body 421.

[0057] By providing a guide structure consisting of a convex guide 425 and a concave guide between the inner wall end face of the dust collection box 410 and the end of the dust removal brush 420, it can be ensured that the dust removal brush 420 will not swing about the length direction of the dust removal brush 420 or swing in the radial and axial planes of the winding shaft 210 when it moves up and down during the process of being squeezed by the filter screen 100. This ensures that the bristles 423 on the dust removal brush 420 can contact the filter screen 100 more evenly, and avoids excessive pressure on the bristles 423 in some areas due to the tilt of the dust removal brush 420.

[0058] In another implementation, if the guide structure described later is not used, a guide ridge as a convex guide portion 425 can be provided on the inner wall end face of the dust collection box 410, and a guide notch as a concave guide portion matching the guide ridge can be provided on the end face of the dust removal brush 420. The guide notch can slide along the guide ridge to ensure that the dust removal brush 420 does not tilt during movement.

[0059] like Figure 7 As shown, preferably, the inner wall end face of the dust collection box 410 is provided with a guide groove 411, the convex guide part 425 is provided at the end of the dust removal brush 420, and the top of the guide groove 411 is provided with an anti-detachment structure.

[0060] In this embodiment, the convex guide portion 425 is disposed on the opposite sides of the bottom of the two U-shaped arms of the dust removal brush 420. The convex guide portion 425 and the guide groove 411, which is a concave guide portion, are matched in the horizontal plane. That is, the two ends of the convex guide portion 425 along the axial direction of the take-up shaft 210 are in contact with the bottom of the corresponding groove of the guide groove 411, and the two sides of the convex guide portion 425 along the circumferential direction of the take-up shaft 210 are in contact with the groove wall of the guide groove 411.

[0061] The anti-detachment structure at the top of the guide groove 411 is a baffle at the top of the guide groove 411, which can prevent the convex guide part 425 from continuing to move upward.

[0062] By arranging the anti-disengagement structure on the top of the guide groove 411, the convex guide portion 425 of the dust removal brush 420 can be prevented from moving too far in the guide groove 411, and the maximum distance of the upward movement of the dust removal brush 420 is limited, so that the dust removal brush 420 is prevented from being driven by the elastic member 430 to apply too large a distance to the filter screen 100, thereby avoiding that the pressure between the bristles 423 of the dust removal brush 420 and the filter screen 100 is too large to cause damage to the bristles 423.

[0063] As shown in Figure 7 Preferably, the elastic member 430 is a spring sheet, both ends of the spring sheet in the length direction abut against the inner wall of the bottom of the dust collecting box 410, and the middle part of the spring sheet abuts against the dust removal brush 420.

[0064] In the embodiment, the spring sheet can be arched or isosceles trapezoidal, wherein both ends of the spring sheet in the length direction are directly placed on the inner wall of the bottom of the dust collecting box 410, and there is no limit between the spring sheet and the dust collecting box 410 in the length direction. When the deformation amount of the spring sheet increases, the height of the spring sheet becomes thinner, and both ends of the spring sheet in the length direction become farther, and the whole spring sheet becomes flatter. The lower surface of the brush body 421 of the dust removal brush 420 is substantially a plane, which matches the shape of the top surface of the middle part of the spring sheet in the length direction, thereby increasing the contact area and improving the stability of the dust removal brush 420.

[0065] In the scheme of the present application, since the increasing process of the diameter of the filter screen 100 is long-term and continuous, the elastic member 430 needs to be stressed for a long time, and the spring sheet is selected as the elastic member 430, which can well adapt to this long-term stress environment. By arranging both ends of the spring sheet in the length direction to abut against the inner wall of the bottom of the dust collecting box 410 and the middle part of the spring sheet to abut against the dust removal brush 420, the dust removal brush 420 has a larger area to receive the force of the spring sheet, which can improve the stability of the stress of the dust removal brush 420, so that the dust removal brush 420 can more uniformly apply force to the filter screen 100 in the length direction, and the cleaning effect on the dust attached to the filter screen 100 is improved.

[0066] Of course, in another implementation, a cylindrical helical compression spring can also be used as the elastic member 430 to support the dust removal brush 420.

[0067] As shown in Figure 8 and Figure 9 Preferably, the side of the dust removal brush 420 facing the elastic member 430 is provided with a first positioning column 427, and the elastic member 430 is provided with a positioning hole 431, and the first positioning column 427 matches the positioning hole 431.

[0068] Specifically, the first positioning column 427 can be arranged at the central position of the side of the dust removal brush 420 facing the elastic member 430.

[0069] By setting the first positioning column 427, cooperating with the first positioning hole 431 on the elastic piece 430, the horizontal position of the dust removal brush 420 can be controlled by the cooperation of the dust removal brush 420 and the dust collecting box 410, and then the horizontal position of the elastic piece 430 is limited by the horizontal position of the dust removal brush 420, so as to prevent the elastic piece 430 from moving in the horizontal direction.

[0070] As shown in Figure 8 and Figure 9 , preferably, the dust removal brush 420 is provided with a first clamping tongue 429, and the elastic piece 430 is provided with a first clamping hole 433, and the first clamping tongue 429 is clamped in the first clamping hole 433.

[0071] Specifically, the dust removal brush 420 is provided with two downward protruding first clamping tongues 429, and correspondingly, the elastic piece 430 is provided with two first clamping holes 433 corresponding in position. The first positioning column 427 is located between the two first clamping tongues 429, and the tip portions of the wedge-shaped portions of the two first clamping tongues 429 protrude downward, and the thicker portions of the two wedge-shaped portions protrude toward opposite horizontal directions.

[0072] More specifically, since the elastic piece 430 is a metal elastic sheet, the bending portions 435 generated when the first clamping hole 433 is processed can be matched with the wedge-shaped portions of the first clamping tongue 429 respectively, and are located above the two wedge-shaped portions respectively, so as to prevent the first clamping tongue 429 from being separated from the first clamping hole 433.

[0073] By setting the first clamping tongue 429 of the dust removal brush 420 clamped in the first clamping hole 433, not only the rotation of the elastic piece 430 relative to the dust removal brush 420 is limited, but also the elastic piece 430 can be prevented from being separated downward from the dust removal brush 420, thereby improving the reliability of the dust removal assembly 400.

[0074] As shown in Figure 1 , Figure 2 and Figure 10 , Figure 11 , preferably, the dust collecting box 410 is provided with a second clamping tongue 415 on the side of the dust collecting box 410 in the winding direction of the filter screen 100, the upper cover 300 is provided with a second clamping hole 310, and the second clamping tongue 415 is clamped in the second clamping hole 310; the dust collecting box 410 is provided with a third clamping tongue 417 on the side of the dust collecting box 410 in the unfolding direction of the filter screen 100, the upper cover 300 is provided with a third clamping hole 320, and the third clamping tongue 417 is clamped in the third clamping hole 320; at least one of the second clamping tongue 415 and the third clamping tongue 417 is exposed from the upper cover 300.

[0075] Among them, the dust collecting box 410 can include a substantially semicircular arc-shaped peripheral surface portion and a semicircular end surface portion, the second clamping tongue 415 is arranged on one side of the semicircular arc-shaped peripheral surface portion close to the positions of both ends of the side, Figure 10The right side in the figure is the winding direction of the filter screen 100 on the winding assembly 200. A second clamping hole 310 corresponding in position is arranged on the upper cover 300, and the second clamping hole 310 can be located at the lower part of the corresponding side of the upper cover 300. Specifically, the second clamping tongue 415 is an upwardly protruding clamping tongue, that is, the wedge-shaped part of the second clamping tongue 415 is in a state of being narrow at the top and thick at the bottom, and the second clamping hole 310 is a through hole penetrating the upper cover 300 along the wall thickness direction, more specifically, the penetrating direction of the second clamping hole 310 is close to the horizontal direction. In this embodiment, the second clamping tongue 415 is exposed from the upper cover 300, that is, the second clamping tongue 415 can be observed from above the upper cover 300.

[0076] The third clamping tongue 417 is located at the other side of the semicircular arc surface of the dust collecting box 410, that is, Figure 10 the left side shown in the figure, that is, Figure 10 the left side of the semicircular arc surface shown in the figure. The second clamping hole 310 is arranged at a position corresponding to the third clamping tongue 417. Specifically, on the upper cover 300, a plate-shaped part protruding downward along the vertical direction is arranged, and a third clamping hole 320 penetrating along the horizontal direction is processed on the plate-shaped part, and the thicker part of the wedge-shaped part of the third clamping tongue 417 matches the third clamping hole 320.

[0077] By arranging the combination of the second clamping tongue 415 and the second clamping hole 310, and the cooperation of the third clamping tongue 417 and the third clamping hole 320, one side of the winding direction of the dust collecting box 410 and one side of the unwinding direction of the dust collecting box 410 can be fixed with the upper cover 300 respectively, so as to ensure that the dust collecting box 410 can be reliably installed on the upper cover 300. Moreover, by exposing at least one of the second clamping tongue 415 or the third clamping tongue 417 from the upper cover 300, when it is needed to disassemble the dust collecting box 410 from the upper cover 300, as long as the corresponding second clamping tongue 415 and / or third clamping tongue 417 is pressed to contact the fixation between the clamping tongue and the clamping hole through the second clamping hole 310 and / or the third clamping hole 320 of the upper cover 300, the side of the dust collecting box 410 can be separated from the upper cover 300, and then the other side can be very conveniently separated, thereby improving the convenience of disassembling the dust collecting box 410, and being conducive to more conveniently cleaning the dust in the dust collecting box 410, so as to ensure the cleaning of the dust collecting box 410.

[0078] As shown in Figure 10 and Figure 11 Preferably, the inner wall of the dust collecting box 410 is provided with a second positioning column 419 protruding upward, and the second positioning column 419 is arranged corresponding to the third clamping tongue 417.

[0079] Corresponding arrangement of the second positioning column 419 and the third clamping tongue 417 means that the plate body parts of the second positioning column 419 and the third clamping tongue 417 are respectively located at the opposite sides of the plate-shaped part where the second clamping hole 310 is arranged.

[0080] By setting the second positioning column 419 corresponding to the third clamping tongue 417, the third clamping tongue 417 can be prevented from moving in a direction away from the second clamping hole 310. In particular, when the clamping directions of the second clamping tongue 415 and the third clamping tongue 417 relative to the second clamping hole 310 and the third clamping hole 320 are consistent, the dust collection box 410 can only be positioned in a certain horizontal direction in a forward direction, and cannot be positioned in the reverse direction of the horizontal direction. When the second positioning column 419 is used for positioning, the dust collection box 410 is prevented from falling off the upper cover 300.

[0081] The action principle of the embodiment is:

[0082] With the increase of the winding of the winding shaft 210 on the filter screen 100, the filter screen 100 rotates relative to the dust removal brush 420, and the bristles 423 of the dust removal brush 420 clean the dust attached to the surface of the filter screen 100. While the winding length of the filter screen 100 increases, the winding diameter of the filter screen 100 also increases. Since the lower part of the dust removal brush 420 is supported by the elastic member 430, the dust removal brush 420 can move downward under the action of the outer circumferential surface of the filter screen 100 and compress the elastic member 430. The distance between the two ends of the elastic sheet of the elastic member 430 in the length direction increases, and the height of the elastic sheet decreases. Although the deformation amount of the elastic member 430 also increases as the winding diameter of the filter screen 100 increases, the force of the elastic member 430 on the dust removal brush 420 increases. However, since the elastic member 430 is elastic and can deform, the increase in the force of the bristles 423 on the filter screen 100 is limited, which ensures that the bristles 423 will not be significantly damaged.

[0083] If it is necessary to remove the dust collection box 410, the second clamping tongue 415 can be pressed from the outside of the second clamping hole 310 of the upper cover 300, the second clamping tongue 415 is locked by contacting the second clamping hole 310, the right side of the dust collection box 410 in Figure 10 is separated from the upper cover 300, and the dust collection box 410 is pushed to the left side in Figure 10 and shaken, so that the third clamping tongue 417 on the left side of Figure 10 is separated from the fixing of the third clamping hole 320, so that the dust collection box 410 can be separated from the upper cover 300. The dust collection box 410 can be cleaned separately.

[0084] Embodiment Two:

[0085] Embodiment Two also provides an air conditioner indoor unit, which comprises an air inlet and an air conditioner indoor unit air inlet filtering mechanism according to any one of the above. The air conditioner indoor unit air inlet filtering mechanism is arranged in the air inlet.

[0086] By arranging the air conditioner indoor unit air inlet filtering mechanism in the air conditioner, the air conditioner has all the advantages of the air conditioner indoor unit air inlet filtering mechanism, which will not be described here.

[0087] While the application has been disclosed by reference to the above description of the drawings, it is apparent that changes and modifications can be made without departing from the spirit and scope of the application. It is therefore intended in the following claims to cover all such changes and modifications that are within the scope of this application.

[0088] Finally, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. It is also possible in the present disclosure that terms could be used differently from the definitions set forth herein, but such terms will be understood by those skilled in the art in light of the discussion and definitions provided herein. Moreover, the use of "including," "comprising," "having," "containing," "involving," "characterized by," "characterized into," "characterized with" or variations thereof, is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless otherwise indicated herein, the use of the terms "a" and "an" are not intended to be construed as limiting the claimed subject matter to only one of the enumerated possibilities.

[0089] In the above embodiments, the orientation terms such as "upper", "lower", etc. are based on the drawings.

[0090] The above description of disclosed embodiments is intended to be illustrative and not restrictive. Many modifications and variations of the described embodiments will be apparent to those skilled in the art from this disclosure. It is therefore contemplated to embrace within the scope of claims all such modifications and variations as fall within the scope of the above description and equivalents thereof.

[0091] Accordingly, the application is not to be limited to the specific embodiments illustrated herein, but only by the scope of the appended claims, appropriately interpreted, along with the full range of equivalents to which the claims are entitled.

Claims

1. An air conditioning indoor unit air inlet filtering mechanism, characterized by, The dust removal assembly (400) further comprises an elastic member (430), one end of the elastic member (430) is connected to the dust collecting box (410), and the other end of the elastic member (430) abuts against the dust removal brush (420); one side of the dust removal brush (420) facing the elastic member (430) is provided with a first positioning column (427), and the elastic member (430) is provided with a positioning hole (431); the first positioning column (427) is matched with the positioning hole (431). The dust removal brush (420) is provided with a first clamping tongue (429), and the elastic member (430) is provided with a first clamping hole (433); the first clamping tongue (429) is clamped in the first clamping hole (433). The dust removal brush (420) and the dust collecting box (410) are slidably arranged opposite to each other; one of an end face of an inner wall of the dust collecting box (410) and an end portion of the dust removal brush (420) is provided with a convex guide portion (425), and the other is provided with a concave guide portion; the convex guide portion (425) is matched with the concave guide portion. 2.The indoor unit air intake filter mechanism of claim 1, wherein, The end face of the inner wall of the dust collecting box (410) is provided with a guide groove (411), and the convex guide portion (425) is arranged at the end portion of the dust removal brush (420); a top portion of the guide groove (411) is provided with an anti-falling structure (413). 3.The indoor unit air intake filter mechanism of claim 2, wherein, The elastic member (430) is a spring piece, and both ends of the spring piece in the length direction abut against inner walls of a box bottom of the dust collecting box (410); and a middle portion of the spring piece abuts against the dust removal brush (420). 4.The indoor unit air intake filter mechanism of claim 1, wherein, The dust collecting box (410) is provided with a second clamping tongue (415) at a side edge in a winding direction of the filter screen (100), the upper cover (300) is provided with a second clamping hole, and the second clamping tongue (415) is clamped in the second clamping hole; the dust collecting box (410) is provided with a third clamping tongue (417) at a side edge in an unfolding direction of the filter screen (100), the upper cover (300) is provided with a third clamping hole (320), and the third clamping tongue (417) is clamped in the third clamping hole (320); at least one of the second clamping tongue (415) and the third clamping tongue (417) is exposed from the upper cover (300). 5.The air conditioner indoor unit air intake filter mechanism according to any one of claims 1-4, wherein, An inner wall of the dust collecting box (410) is provided with a second positioning column (419) protruding upward, and the second positioning column (419) is arranged correspondingly to the third clamping tongue (417). 6.The indoor unit air intake filter mechanism of claim 5, wherein, ​ 7. An air conditioner characterized by comprising: The air conditioner comprises an air conditioner indoor unit, and the air conditioner indoor unit comprises an air inlet and the air conditioner indoor unit air inlet filtering mechanism of any one of claims 1-6, and the air conditioner indoor unit air inlet filtering mechanism is arranged at the air inlet.

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