Filter screen assembly and air conditioner

Abstract

The utility model provides a filter screen assembly and an air conditioner, relates to the technical field of air conditioners, and aims to solve the problems of injection molding manufacturing defects and high production defect rate of the filter screen assembly caused by possible local separation of a filter screen body and a bracket. The filter screen assembly comprises a support and a filter screen body, the support comprises a first support and a second support which are arranged in a spaced mode, and the filter screen body comprises a first fixing part fixedly connected to the first support, a second fixing part fixedly connected to the second support and a deformation part connected with the first fixing part and the second fixing part. The first fixing part, the deformation part and the second fixing part are sequentially arranged in the first direction; the second support is provided with a first retaining part, and the first retaining part is used for abutting against a second retaining part arranged on the middle frame so as to prevent the second support from being away from the first support in the first direction. And the deformation part is configured to increase the bending and protruding degree of the deformation part in the air inlet direction when the distance between the first bracket and the second bracket is reduced. The filter screen body can be tightly attached to the support, and the yield is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and particularly to a filter screen assembly and an air conditioner. Background Art

[0002] The middle frame is an indispensable component in an air conditioner, which is used to accommodate an indoor heat exchanger and is provided with an air inlet to introduce air for heat exchange. For a wall-mounted air conditioner indoor unit, generally, the air inlet is located at the top of the middle frame. And a filter screen assembly is generally arranged at the air inlet to play a role in air intake filtration, blocking dust and other foreign matters in the air, reducing the dust accumulation on the indoor heat exchanger, and ensuring the heat exchange efficiency of the indoor heat exchanger.

[0003] Although in some prior arts, the filter screen body of the filter screen assembly is set in a downwardly concave shape, so as to increase the contact area between the air flow and the filter screen body, improve the filtering effect, and a bracket configured with longitudinal ribs is used as the framework of the filter screen body to support the filter screen body. However, when the filter screen assembly adopts the above form, during the manufacturing process of the filter screen assembly, it is necessary to first lay the filter screen body in a deeper groove of the lower mold. And because the filter screen body itself has elasticity, the filter screen body is not easy to be flattened. Furthermore, during the process of injecting the bracket, the bracket and the filter screen body may not be completely and tightly fitted, resulting in a situation where the edge of a part of the filter screen body is separated from the bracket in the manufactured filter screen assembly, generating injection manufacturing defects of the filter screen assembly and a high production rejection rate. Summary of the Utility Model

[0004] The first object of the utility model is to provide a filter screen assembly to solve the technical problem that the existing filter screen body and the bracket may be partially separated, resulting in injection manufacturing defects of the filter screen assembly and a high production rejection rate.

[0005] The filter screen assembly provided by the utility model includes a bracket and a filter screen body. The bracket includes a first bracket and a second bracket arranged at intervals. The filter screen body includes a first fixing part fixedly connected to the first bracket, a second fixing part fixedly connected to the second bracket, and a deformation part connecting the first fixing part and the second fixing part. The first fixing part, the deformation part, and the second fixing part are arranged in sequence along a first direction. The second bracket is provided with a first anti-retreat part, and the first anti-retreat part is used for abutting against a second anti-retreat part arranged on the middle frame to prevent the second bracket from moving away from the first bracket along the first direction. The deformation part is configured such that when the distance between the first bracket and the second bracket is reduced, the bending convex degree of the deformation part along the air inlet direction is increased.

[0006] The beneficial effects brought by the filter screen assembly of the utility model are as follows:

[0007] By providing a first bracket and a second bracket respectively connected to the first fixing portion and the second fixing portion, and the distance between the first bracket and the second bracket can be reduced, so as to increase the degree of bending and convexity of the deformable portion connected between the first fixing portion and the second fixing portion along the air inlet direction. Thus, during the injection molding process of the bracket, the deformable portion is in a state with a smaller degree of bending and convexity, or even in a flat state. Before injection molding, the filter body can be laid on a relatively flat surface, and the filter body can fit more closely with the mold. That is, the fitting of the filter body and the mold is not affected by the bending of the filter body in the finished product state. Then, during the injection molding process, in each part of the bracket, the area that needs to be closely combined with the filter body can be better combined with the filter body, thereby improving the yield rate, and at the same time improving the reliability of the air conditioner filter assembly during use, and avoiding part of the air leaking into the air conditioner interior from between the filter body and the bracket to contaminate the indoor heat exchanger due to the separation of the filter body and the bracket. After the injection molding is completed, the first bracket is inserted into the middle frame, and the second bracket is continuously pushed to increase the degree of bending and convexity of the deformable portion. Then, the first anti-retreat portion is abutted against the second anti-retreat portion on the middle frame to prevent the second bracket from moving away from the first bracket, so that the deformable portion can maintain the shape convex along the air inlet direction and will not open under the restoring force of the deformable portion.

[0008] In an alternative technical solution, the bracket further includes a flexible support member, the flexible support member connects the first bracket and the second bracket, the stiffness of the flexible support member in the first direction is less than that of the first bracket and the second bracket, and the flexible support member is fixedly connected to the deformable portion.

[0009] Although the stiffness of the flexible support member connecting the first bracket and the second bracket is less than that of the first bracket and the second bracket, its stiffness is also significantly greater than that of the deformable portion of the filter body. After bringing the first bracket and the second bracket closer, the deformable portion is bent and convex along the air inlet direction. The rigid body of the flexible support member can be used to maintain the shape of the deformable portion, so as to ensure the overall shape of the deformable portion and the filtering effect.

[0010] In an alternative technical solution, the filter assembly is configured to be installed in the middle frame, the first bracket is configured to abut against the guiding structure of the middle frame in a direction perpendicular to the first direction, and the first bracket is configured to be connected to the guiding structure by sliding friction.

[0011] By providing that the first bracket can be connected to the guiding structure by sliding friction, a resistance can be generated during the process of the first bracket penetrating into the middle frame. Then, when the second bracket is continuously pushed, when the deformable portion and the flexible support member cannot transmit the acting force of the second bracket, the deformable portion and the flexible support member will bend, so as to form the expected shape of bending and convexity along the air inlet direction of the deformable portion and the flexible bracket during the installation of the filter assembly into the middle frame, thereby improving the operation efficiency.

[0012] In an alternative technical solution, a first protruding portion is provided on the opposite end surfaces of the first bracket, and / or a first convex rib is provided on the surface of the first bracket in the second direction.

[0013] By providing a first protruding portion on the opposite end surfaces of the first bracket and / or a first convex rib on the surface of the first bracket in the second direction, it can be in contact with the guiding structure, thereby increasing the friction between the first bracket and the guiding structure.

[0014] In an alternative technical solution, a first guiding surface is formed on the surface of the first anti-retreat portion facing the third direction, and / or a second guiding surface is formed on the surface of the second anti-retreat portion facing the first direction, where the third direction is opposite to the first direction.

[0015] By providing the first guiding surface and / or the second guiding surface, the cooperation of the first guiding surface and the second surface can be utilized to guide the first anti-retreat portion when the first anti-retreat portion contacts the second anti-retreat portion. It is convenient to extrude the first anti-retreat portion downward, so that the first anti-retreat portion can cross the second anti-retreat portion, facilitating the installation of the filter screen assembly.

[0016] In an alternative technical solution, the second bracket is provided with a pressing portion, and the pressing portion and the first anti-retreat portion are arranged along the first direction.

[0017] By providing the pressing portion, when it is necessary to remove the filter screen assembly from the middle frame for cleaning the filter screen assembly, the pressing portion can be pressed to separate the first anti-retreat portion from the second anti-retreat portion, so as to release the locking of the second anti-retreat portion on the first anti-retreat portion, thereby facilitating the disassembly of the filter screen assembly and improving the convenience of use of the filter screen assembly.

[0018] In an alternative technical solution, the second bracket includes first grid bars arranged side by side, the first grid bars extend along the first direction, and the pressing portion protrudes from the first grid bars in the second direction; and / or the pressing portion connects adjacent first grid bars.

[0019] Setting the pressing portion to protrude from the first grid bars in the second direction can reduce the height difference between the surface of the pressing portion and the area of the third bracket of the middle frame where the second anti-retreat portion is provided, facilitating the user to press the pressing portion with a finger when removing the filter screen assembly; since the second anti-retreat portion and the first anti-retreat portion are oppositely arranged, setting the pressing portion to connect adjacent first grid bars, the part where the pressing portion connects the first grid bars is at a relatively large distance from the second anti-retreat portion, facilitating the user to press the pressing portion with a finger and improving the convenience during disassembly.

[0020] In an alternative technical solution, the second bracket is further provided with a third anti-retreat portion, the third anti-retreat portion protrudes from the second bracket in the fourth direction, and the third anti-retreat portion is used to abut against the middle frame.

[0021] By providing a third anti-retreat portion protruding in the fourth direction on the second bracket to abut against the middle frame, when the pressing portion is accidentally pressed and the anti-retreat function of the second anti-retreat portion on the first anti-retreat portion fails, the abutment between the third anti-retreat portion and the middle frame can be utilized to prevent the second bracket from moving away from the first bracket, thereby ensuring the normal use of the filter assembly.

[0022] In an alternative technical solution, the flexible support member has a thinning area, and the thinning area includes a first thinning area located in the middle of the length direction of the flexible support member and / or a second thinning area located at the end of the length direction of the flexible support member.

[0023] By providing the thinning area, since the stiffness of the thinning area is less than that of the local part of the flexible support member outside the thinning area, when the flexible support member is stressed, the deformation of the thinning area is significantly greater than that of the non-thinning area, which is beneficial to controlling the deformation position of the flexible support member. By providing the first thinning area in the middle of the length direction of the flexible support member, the first thinning area can be used to form the corner part where the two arms of the depression of the flexible support member are connected, so as to control the maximum deformation position of the flexible support member and reduce the deformation stress of the flexible support member.

[0024] The second object of the present invention is to provide an air conditioner to solve the technical problems of possible partial separation between the filter body and the bracket, resulting in injection molding defects of the filter assembly and a high production rejection rate.

[0025] The air conditioner provided by the present invention includes a middle frame and the filter assembly according to any one of the above, the middle frame is provided with an air inlet, the filter assembly is installed at the air inlet, the air inlet is provided with a third bracket, and the third bracket is provided with the second anti-retreat portion.

[0026] By providing the above filter assembly in the air conditioner, correspondingly, the air conditioner has all the advantages of the above filter assembly, which will not be elaborated one by one here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the background art, the following will briefly introduce the drawings required for the description of the embodiments or the background art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0028] Figure 1 It is a schematic structural diagram of the filter assembly provided in the first embodiment of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the filter assembly provided in the first embodiment of the present invention observed from another direction;

[0030] Figure 3 Structural schematic diagram of the bracket in the filter screen assembly provided in the first embodiment of the present utility model, observed from another direction;

[0031] Figure 4 Partial schematic diagram of the filter screen assembly provided in the first embodiment of the present utility model installed in the middle frame;

[0032] Figure 5 Partial cross-sectional view of the filter screen assembly provided in the first embodiment of the present utility model installed in the middle frame;

[0033] Figure 6 Partial cross-sectional view of the area where the second bracket is located after pressing the pressing part after the filter screen assembly provided in the first embodiment of the present utility model is installed in the middle frame;

[0034] Figure 7 Partial cross-sectional view of the area where the second bracket is located after rotating the pressing part after the filter screen assembly provided in the first embodiment of the present utility model is installed in the middle frame;

[0035] Figure 8 Top view of the bracket in the filter screen assembly provided in the first embodiment of the present utility model;

[0036] Figure 9 is Figure 8 A - A cross-sectional view of; Figure 10 is Figure 8 B - B cross-sectional view of;

[0037] Figure 11 Partial schematic diagram of the middle frame in the air conditioner provided in the second embodiment of the present utility model;

[0038] Figure 12 Partial schematic diagram of the middle frame in the air conditioner provided in the second embodiment of the present utility model, observed from another direction;

[0039] Figure 13 Partial schematic diagram of the filter screen assembly just inserted into the middle frame in the air conditioner provided in the second embodiment of the present utility model;

[0040] Figure 14 Partial cross-sectional view of the filter screen assembly just inserted into the middle frame in the air conditioner provided in the second embodiment of the present utility model;

[0041] Figure 15 Partial schematic diagram of inserting the first bracket into the guiding structure in the air conditioner provided in the second embodiment of the present utility model;

[0042] Figure 16 Partial cross-sectional view of inserting the first bracket into the guiding structure in the air conditioner provided in the second embodiment of the present utility model.

[0043] Explanation of reference numerals:

[0044] 100 - First bracket; 110 - First grille bar; 120 - Second grille bar; 130 - First protrusion; 140 - First rib; 150 - Guide part;

[0045] 200 - Second bracket; 210 - First anti - retreat part; 211 - First anti - retreat surface; 212 - First guide surface; 220 - Pressing part; 230 - Third anti - retreat part;

[0046] 300 - Flexible support; 310 - First thinning area; 320 - Second thinning area;

[0047] 400 - Filter body; 410 - First fixing part; 420 - Second fixing part; 430 - Deformation part;

[0048] 500 - Middle frame; 510 - Third bracket; 511 - Third grille bar; 512 - Fourth grille bar; 520 - Second anti - retreat part; 521 - Second anti - retreat surface; 522 - Second guide surface; 530 - Guide structure; 531 - Upper guide wall; 532 - Lower guide wall; 533 - Left groove wall; 540 - Groove; 550 - First support part; 560 - Second support part; 570 - Air inlet. Detailed implementation manners

[0049] To make the above - mentioned objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0050] Before introducing the specific embodiments of the present application, the meanings of each direction or orientation in the present application will be described first. Among them, in this embodiment, the filter assembly is taken as an example applied to a wall - mounted air - conditioner indoor unit, but it does not prevent the products of the present application from being applied to a cabinet - type air - conditioner indoor unit or a ceiling - type air - conditioner. Of course, in addition to air - conditioners, the filter assembly can also be applied to other devices or appliances that need to intake air, such as air purifiers and bladeless fans.

[0051] Generally speaking, the air inlet 570 of a wall - mounted air - conditioner indoor unit is mostly arranged at the top of the wall - mounted air - conditioner indoor unit. Among them, the definitions of directions in the present application are as follows: The front refers to the side of the wall - mounted air - conditioner indoor unit facing the main indoor space, and the rear is the side of the wall - mounted air - conditioner indoor unit facing the wall on which it is hung. The lower side is the side of the wall - mounted air - conditioner indoor unit facing the ground. Correspondingly, the upper side is the side of the wall - mounted air - conditioner indoor unit facing the ceiling. The left and right can be defined based on the above - mentioned front, rear and lower sides, that is, when the observer faces the wall on which the wall - mounted air - conditioner is installed, the left - hand direction of the observer is the left side, and the right - hand direction of the observer is the right side.

[0052] Specifically in this embodiment, the opposite end faces of the bracket or the first bracket 100 or the second bracket 200 hereinafter refer to the left and right end faces of the bracket or the first bracket 100 or the second bracket 200 when the filter screen assembly is installed in the wall-mounted air conditioner indoor unit, and the first side face of the bracket refers to the lower surface of the bracket. Correspondingly, the second side face refers to the upper surface of the bracket. That is, the first side face is Figures 1 - 2 and Figure 3 the downward-facing surface in the figure of the bracket shown in and the upward-facing surface in the figure of the bracket shown in, and the second side face is Figures 1 - 2 and Figure 3 the upward-facing surface of the bracket shown in and the downward-facing surface of the bracket shown in. The length direction of the flexible support member 300 hereinafter is the front-back direction, that is, the extending direction of the second grille bar 120. When the upper surface of the filter screen assembly is horizontally installed as a whole, the first direction is the direction from back to front, and the second direction is the direction from front to back.

[0053] Embodiment 1:

[0054] Figure 1 is a schematic structural view of the filter screen assembly provided by Embodiment 1 of the present utility model; Figure 2 is a schematic structural view of the filter screen assembly provided by Embodiment 1 of the present utility model observed from another direction; Figure 3 is a schematic structural view of the bracket in the filter screen assembly provided by Embodiment 1 of the present utility model observed from another direction;

[0055] Figure 4 is a partial schematic view of the filter screen assembly provided by Embodiment 1 of the present utility model installed in the middle frame; Figure 5 is a partial cross-sectional view of the filter screen assembly provided by Embodiment 1 of the present utility model installed in the middle frame. As Figures 1 - 5 shown, the filter screen assembly provided by Embodiment 1 of the present utility model includes a bracket and a filter screen body 400. The bracket includes a first bracket 100 and a second bracket 200 arranged at intervals. The filter screen body 400 includes a first fixing portion 410 fixedly connected to the first bracket 100, a second fixing portion 420 fixedly connected to the second bracket 200, and a deformation portion 430 connecting the first fixing portion 410 and the second fixing portion 420. The first fixing portion 410, the deformation portion 430, and the second fixing portion 420 are arranged in sequence along the first direction; the second bracket 200 is provided with a first anti-retreat portion 210, and the first anti-retreat portion 210 is used to abut against the second anti-retreat portion 520 provided on the middle frame 500 to prevent the second bracket 200 from moving away from the first bracket 100 along the first direction; the deformation portion 430 is configured such that when the distance between the first bracket 100 and the second bracket 200 is reduced, the degree of bending protrusion of the deformation portion 430 in the air inlet direction increases.

[0056] By providing a first bracket 100 and a second bracket 200 respectively connected to the first fixing portion 410 and the second fixing portion 420, and the distance between the first bracket 100 and the second bracket 200 can be reduced, so as to increase the degree of bending and bulging of the deformation portion 430 connected between the first fixing portion 410 and the second fixing portion 420 along the air inlet direction. Thus, during the injection molding process of the bracket, the deformation portion 430 is in a state with a relatively small degree of bending and bulging, or even in a flat state. Before injection molding, the filter body 400 can be laid on a relatively flat surface, and the filter body 400 can fit more closely with the mold. That is, the fitting of the filter body 400 and the mold is not affected by the bending of the filter body 400 in the finished product state. Then, during the injection molding process, in each part of the bracket, the area that needs to be closely combined with the filter body 400 can be better combined with the filter body 400, thereby improving the yield rate, and at the same time improving the reliability of the air conditioner filter assembly during use, and avoiding part of the air leaking into the air conditioner interior to contaminate the indoor heat exchanger due to the separation of the filter body 400 and the bracket. After the injection molding is completed, the first bracket 100 is inserted into the middle frame 500, and the second bracket 200 is continuously pushed to increase the degree of bending and bulging of the deformation portion 430, and then the first anti-retreat portion 210 is abutted against the second anti-retreat portion 520 on the middle frame 500 to prevent the second bracket 200 from moving away from the first bracket 100, so that the deformation portion 430 can maintain the shape of bulging along the air inlet direction and will not be opened under the action of the restoring force of the deformation portion 430.

[0057] Moreover, by setting the deformation portion 430 such that as the distance between the first bracket 100 and the second bracket 200 increases, the bending and bulging direction along the air inlet direction increases, after the injection molding is completed, compared with after the filter assembly is installed in the middle frame 500, a more flattened state can be presented. Thus, it is convenient to put more filter assemblies in a packing box or container of the same volume size, increasing the packing rate and improving the efficiency of the filter assembly during handling, transportation and storage.

[0058] Among them, in this embodiment, the filter body 400 can be arranged at the lower part or the lower side surface of the bracket. Arranging it at the lower part of the bracket means that there is still the solid material of the bracket below the filter body 400, because during the injection molding process of the bracket, the material for forming the bracket can be injected on the lower side of the filter body 400. That is, materials are injected and solidified on both the upper side and the lower side of the filter body 400, and part of the filter body 400 is cast in the material of the bracket. Among them, in this embodiment, the filter body 400 can be located in the middle and lower part of the bracket, relatively close to the lower surface of the bracket - the first side surface. When the deformation part 430 deforms, it bulges downward, that is, bulges in the direction of the first side surface. Or, the filter body 400 can also be located on the lower side surface of the bracket, that is, before injection molding, the filter is attached to the lower surface of the mold, and after injection molding, the filter is fused with the lower surface of the bracket.

[0059] As Figures 1 - 5 shown, optionally, the bracket further includes a flexible support member 300. The flexible support member 300 connects the first bracket 100 and the second bracket 200. The stiffness of the flexible support member 300 in the first direction is less than that of the first bracket 100 and the second bracket 200, and the flexible support member 300 is fixedly connected to the deformation part 430.

[0060] Although the stiffness of the flexible support member 300 connecting the first bracket 100 and the second bracket 200 is less than that of the first bracket 100 and the second bracket 200, its stiffness is also significantly greater than that of the deformation part 430 of the filter body 400. After bringing the first bracket 100 and the second bracket 200 closer, the deformation part 430 bends and bulges along the air inlet direction. The rigid body of the flexible support member 300 can be used to maintain the shape of the deformation part 430, thereby ensuring the overall shape and filtering effect of the deformation part 430.

[0061] Specifically, in this embodiment, a plurality of flexible support members 300 are arranged in the bracket along the left - right direction, that is, in the direction from one end face to the other end face among the opposite end faces of the bracket. More specifically, four flexible support members 300 are arranged.

[0062] In this embodiment, the first bracket 100 is located at the rear part of the bracket, while the flexible support member 300 is located at the front part of the bracket, and the second bracket 200 is located in front of the flexible support member 300. Since generally, the indoor heat exchanger of a wall - mounted air - conditioner indoor unit is in a substantially inverted V - shape or inverted U - shape, in this embodiment, the case where the flexible support member 300 is arranged in the space between the upper part of the indoor heat exchanger and the front part of the middle frame 500 or the air - conditioner panel is taken as an example for description.

[0063] In this embodiment, the first bracket 100 is composed of second grid bars 120 extending in the left-right direction and first grid bars 110 extending in the front-rear direction. Specifically, the first bracket 100 includes three second grid bars 120 arranged in the front-rear direction, and the number of the first grid bars 110 on the first bracket 100 is the same as the number of the flexible support members 300, for example, both can be four. Although the second bracket 200 also includes second grid bars 120 and first grid bars 110, the number of the second grid bars 120 arranged side by side on the second bracket 200 is two, and the interval between the two first grid bars 110 of the second bracket 200 is smaller than that of the first bracket 100. Therefore, in the front-rear direction, the second bracket 200 is significantly narrower than the first bracket 100 as a whole.

[0064] Of course, in another implementation manner, the flexible support member 300 can also be arranged at the rear part of the bracket. Although the relative positions of the first bracket 100 and the second bracket 200 remain unchanged, the first bracket 100 is significantly narrower than the second bracket 200. Or, two groups of flexible support members 300 can be arranged in the front-rear direction on a filter screen assembly. One group of flexible support members 300 connects the first bracket 100 and the second bracket 200, and the other group of flexible support members 300 connects the second bracket 200 and the third bracket 510 at the rearmost part of the bracket. That is, flexible support members 300 are arranged between the indoor heat exchanger and the rear part of the base, as well as between the indoor heat exchanger and the front part of the middle frame 500 or the air conditioner panel, so as to increase the area of the filter screen body 400 and improve the filtering effect.

[0065] The flexible support member 300 can be strip-shaped or rib-shaped. In this embodiment, the first bracket 100 and the second bracket 200 are not absolutely non-deformable. It's just that the stiffness of the first bracket 100 and the second bracket 200 is significantly greater than that of the flexible support member 300. When stressed, the deformation of the first bracket 100 and the second bracket 200 is significantly smaller than that of the flexible support member 300. Specifically in this embodiment, the deformation of the flexible support member 300 is mainly manifested as the downward deformation caused by the shortening of the front-rear distance at both ends of the flexible support member 300 in a plane perpendicular to the left-right direction. Specifically, it can be achieved in the following ways. For example, reinforcing ribs can be arranged on the first side and / or the second side of the first grid bar 110 of the first bracket 100 to improve the stiffness of the first grid bar 110 of the first bracket 100 and reduce its deformation. Of course, for the second grid bar 120 of the first bracket 100 and the second bracket 200, the stiffness can also be improved and the deformation can be reduced by arranging reinforcing ribs on the first side and / or the second side. Of course, the method of increasing the size of the materials of the first bracket 100 and the second bracket 200 can also be used to achieve the difference in stiffness between the first bracket 100 and the second bracket 200 and the flexible support member 300.

[0066] Among them, the first anti-retreat portion 210 is disposed on the second grid bar 120 of the second bracket 200. The surface of the first anti-retreat portion 210 in the first direction has a first anti-retreat surface 211, and the first anti-retreat surface 211 can be in contact with the second anti-retreat surface 521. The second anti-retreat surface 521 is disposed on the second anti-retreat portion 520 of the middle frame 500, that is, the surface of the second anti-retreat portion 520 facing away from the first direction is the second anti-retreat surface 521. The first anti-retreat surface 211 and the second anti-retreat surface 521 can be perpendicular to the first direction or can be arranged at an acute angle to the first direction, and the cotangent value of the acute angle is less than the friction coefficient between two surfaces made of bracket materials. That is, when directly pulling the second bracket 200 towards the front of the middle frame 500, the first anti-retreat surface 211 and the second anti-retreat surface 521 can directly prevent the second bracket 200 from moving away from the first bracket 100, or generate frictional self-locking to prevent relative movement between the first anti-retreat portion 210 and the second anti-retreat portion 520. Thus, after the first anti-retreat portion 210 is in contact with the second anti-retreat portion 520, in the spontaneous state alone, neither the tendency of the deformation portion 430 to return to its original state nor the tendency of the deformation portion 430 and the flexible support strip to return to their original states will cause the separation of the first anti-retreat portion 210 and the second anti-retreat portion 520.

[0067] Among them, the first fixing portion 410 is fixedly connected to the first bracket 100. Obviously, it does not mean that all of the first fixing portion 410 is fixedly connected to the first bracket 100. Specifically, at least a part of the area of the first fixing portion 410 opposite to the second grid bar 120 and the first grid bar 110 can be fixedly connected to the second grid bar 120 and the first grid bar 110, that is, the two are fused during the injection molding process of the bracket. And a part of the first fixing portion 410 corresponds to the opening area between the second grid bar 120 and the first grid bar 110 of the first bracket 100, and this part is not directly fixedly connected to the first fixing portion 410 to ensure that air can enter and be filtered from this part. The specific details of the local connection of the second fixing portion 420 to the second bracket 200 can refer to the local connection of the first fixing portion 410 to the first bracket 100 and the corresponding drawings, which will not be elaborated here.

[0068] In addition, the second grid bar 120 can not only be disposed in the first bracket 100, but also be connected to the flexible support member 300. For example, in the following text, both the first thinning area 310 and the second thinning area 320 can be directly connected to the second grid bar 120. Correspondingly, the acting force can also be transmitted between the respective flexible support members 300 through the second grid bar 120. Therefore, corresponding to some of the flexible support members 300, a first connection portion and a second connection portion are provided. After the flexible support member 300 is deformed through the connection of the first connection portion and the second connection portion, the acting force can be transmitted between the respective flexible support members 300 through the second grid bar 120, driving the deformation of other flexible support members 300 to obtain a bent bracket shape approximately similar to the expected shape. That is, it is not necessary to specifically provide corresponding first connection portions and second connection portions for all the flexible support members 300 to deform the flexible support members 300.

[0069] In addition, in another implementation manner, the flexible support member 300 may not be provided. Because the deformed portion 430 of the filter screen body 400 itself has the ability to rebound after bending. When the deformed portion 430 generates a downward convex bend, it spontaneously has the ability to deform into a more flat state. Therefore, after the deformed portion 430 is bent, a relatively smooth curved surface can also be formed, and it is not absolutely necessary for the flexible support member 300 to control the shape of the deformed portion 430. As for how to push the first bracket 100 into the middle frame 500, since there are large-area openings in the air inlet 570 at the top of the middle frame 500, fingers can pass through these open areas to push the second grid bar 120 of the first bracket 100 to move towards the rear of the middle frame 500.

[0070] As Figure 5 shown, optionally, the filter screen assembly is configured to be installed in the middle frame 500, the first bracket 100 is configured to abut against the guiding structure 530 of the middle frame 500 in a direction perpendicular to the first direction, and the first bracket 100 is configured to be connected to the guiding structure 530 by sliding friction.

[0071] By setting that the first bracket 100 can be connected to the guiding structure 530 by sliding friction, resistance can be generated during the process of the first bracket 100 penetrating into the middle frame 500, and then the second bracket 200 is continuously pushed. When the deformed portion 430 and the flexible support member 300 cannot transmit the acting force of the second bracket 200, the deformed portion 430 and the flexible support member 300 will bend, so as to form the expected shape of bending and protruding along the air inlet direction of the deformed portion 430 and the flexible bracket during the installation of the filter screen assembly into the middle frame 500, thereby improving the operation efficiency.

[0072] Specifically, in this embodiment, the guiding structure 530 can be guiding grooves provided on both end faces of the air inlet 570. Specifically, the guiding grooves can be provided at the left and right ends of the air inlet 570, extend along the front-back direction, and the openings of the guiding grooves face the middle of the air inlet 570. The two side walls of the guiding grooves are respectively the guiding upper wall 531 and the guiding lower wall 532, and the bottom wall of the guiding groove is the groove left wall 533 and the groove right wall (not shown).

[0073] Of course, in another implementation, it can also be that a number of convex portions protruding from the inner wall of the air inlet 570 form the guiding structure 530, and support the first bracket 100 from both sides of the first bracket 100, such as the upper and lower sides, so as to guide the first bracket 100. Alternatively, convex portions protruding towards the central region of the air inlet 570 can also be provided on the inner wall of the air inlet 570 to limit the first bracket 100 left and right and can also guide the first bracket 100.

[0074] Figure 8 It is a top view of the bracket in the filter assembly provided in the first embodiment of the present invention; Figure 9 It is Figure 8 the A-A cross-sectional view of Figure 10 It is Figure 8 the B-B cross-sectional view of Figures 1 - 5 and Figures 8 - 10 As shown in, optionally, the opposite end faces of the first bracket 100 are provided with first protruding portions 130, and / or the surface of the first bracket 100 in the second direction is provided with first convex ribs 140.

[0075] By providing the first protruding portions 130 on the opposite end faces of the first bracket 100 and / or providing the first convex ribs 140 on the surface of the first bracket 100 in the second direction, it can be in contact with the guiding structure 530, thereby increasing the friction between the first bracket 100 and the guiding structure 530.

[0076] Specifically, in this embodiment, the second direction of the first bracket 100 is the upper side of the first bracket 100. That is, the surface of the first bracket 100 in the second direction is the second side surface of the first bracket 100. The rear end of the first convex rib 140 is flush with the rear end of the first grille bar 110 and gradually rises along the first direction. It can not only contact the guiding upper wall 531 of the guiding groove serving as the guiding structure 530, but also the gradually rising first convex rib 140 is beneficial to guiding the first support bracket during the process of inserting the first bracket 100 into the guiding groove. Of course, in another implementation, the first convex rib 140 can also be provided on the first side surface of the first bracket 100, that is, the first convex rib 140 is provided on the lower side surface of the first grille bar 110.

[0077] Specifically, in this embodiment, the first protrusions 130 can be provided on the left and right sides of the first bracket 100. That is, the first protrusions 130 are provided on the left side surface of the second grid bar 120 on the left side of the first bracket 100 and the right side surface of the second grid bar 120 on the right side of the first bracket 100. The first protrusions 130 can respectively abut against the bottom of the guide groove to achieve the left and right positioning of the first bracket 100, and at the same time ensure that there is friction when the first bracket 100 and the guide structure 530 move relative to each other. Moreover, on the left and right end faces of the first bracket 100, that is, at the rear ends of the opposite end faces of the first bracket 100, guide portions 150 are respectively provided. The guide surface of the guide portion 150 in this embodiment is a cylindrical surface, and the distance between the guide surfaces of the two guide portions 150 gradually increases from back to front.

[0078] As Figure 5 shown, optionally, the surface of the first anti-retreat portion 210 facing the third direction forms a first guide surface 212, and / or the surface of the second anti-retreat portion 520 facing the first direction forms a second guide surface 522, and the third direction is opposite to the first direction.

[0079] By providing the first guide surface 212 and / or the second guide surface 522, the cooperation of the first guide surface 212 and the second surface can be utilized to guide the first anti-retreat portion 210 when the first anti-retreat portion 210 contacts the second anti-retreat portion 520. It is convenient to extrude the first anti-retreat portion 210 downward, so that the first anti-retreat portion 210 can cross over the second anti-retreat portion 520, facilitating the installation of the filter screen assembly.

[0080] Among them, the third direction is opposite to the first direction. That is, when the filter screen assembly provided in this embodiment is applied to a wall-mounted air conditioner indoor unit, the third direction is backward as defined above. Moreover, the surface of the first anti-retreat portion 210 facing the third direction mentioned in this embodiment refers to the rear surface of the first anti-retreat portion 210, not completely and absolutely straight backward, and can be a surface facing backward and upward. Similarly, the surface of the second anti-retreat portion 520 facing the first direction is not completely and absolutely forward. A surface facing forward and downward can also belong to the surface facing the first direction.

[0081] Specifically, in this embodiment, the first anti-retreat portion 210 is provided on the second and third of the four first grid bars 110 arranged side by side in the second bracket 200. Correspondingly, the second anti-retreat portion 520 is also provided on the second and third of the four grid bars extending in the front-rear direction of the third bracket 510 of the middle frame 500. Among them, the part of the middle frame 500 corresponding to the lower part of the second anti-retreat portion 520 does not have a part for supporting the filter screen assembly.

[0082] Wherein, the first guiding surface 212 and the second guiding surface 522 are arranged at an acute angle with the first direction, and the cotangent value of this acute angle is greater than the friction coefficient between the material of the bracket and the material of the middle frame 500. Therefore, when the first guiding surface 212 and the second guiding surface 522 are in contact, the pressure of the second anti-retreat portion 520 on the first anti-retreat portion 210 can cause the first anti-retreat portion 210 to move downward, so that the first anti-retreat portion 210 can cross over the second anti-retreat portion 520, and the first anti-retreat portion 210 can enter the rear side of the second anti-retreat portion 520.

[0083] Figure 6 It is a partial cross-sectional view of the area where the second bracket is located after the filter screen assembly provided in the first embodiment of the present invention is installed in the middle frame and the pressing portion is pressed. Figure 7 It is a partial cross-sectional view of the area where the second bracket is located after the filter screen assembly provided in the first embodiment of the present invention is installed in the middle frame and the pressing portion is rotated. As Figures 1 - 10 shown, optionally, the second bracket 200 is provided with a pressing portion 220, and the pressing portion 220 and the first anti-retreat portion 210 are arranged along the first direction.

[0084] By providing the pressing portion 220, when it is necessary to remove the filter screen assembly from the middle frame 500 for cleaning the filter screen assembly, the pressing portion 220 can be pressed to disengage the first anti-retreat portion 210 from the second anti-retreat portion 520, so as to release the locking of the second anti-retreat portion 520 on the first anti-retreat portion 210, thereby facilitating the disassembly of the filter screen assembly and improving the use convenience of the filter screen assembly.

[0085] As Figures 1 - 10 shown, especially referring to Figures 5 - 7 , optionally, the second bracket 200 includes first grid bars 110 arranged side by side, the first grid bars 110 extend along the first direction, and the pressing portion 220 protrudes from the first grid bars 110 along the second direction; and / or, the pressing portion 220 connects adjacent first grid bars 110.

[0086] Setting the pressing portion 220 to protrude from the first grid bars 110 along the second direction can reduce the height difference between the surface of the pressing portion 220 and the area where the second anti-retreat portion 520 is provided on the third bracket 510 of the middle frame 500, which is convenient for the user to press the pressing portion 220 with a finger when removing the filter screen assembly; since the second anti-retreat portion 520 and the first anti-retreat portion 210 are oppositely arranged, setting the pressing portion 220 to connect adjacent first grid bars 110, the part where the pressing portion 220 connects the first grid bars 110 is at a relatively large distance from the second anti-retreat portion 520, which is convenient for the user to press the pressing portion 220 with a finger and improves the convenience during disassembly.

[0087] Specifically, in this embodiment, the pressing part 220 not only protrudes from the first grid bar 110 along the second direction, but also connects adjacent first grid bars 110. In other words, the pressing part 220 can be protrudingly arranged on the second grid bar 120 of the second bracket 200. More specifically, the local part of the second grid bar 120 where the pressing part 220 is located presents a cross-section with a wider bottom and a narrower top, while the remaining part of this second grid bar 120 is a sheet with a uniform thickness up and down.

[0088] As Figures 1 - 10 shown, particularly with reference to Figures 5 - 7 , optionally, the second bracket 200 is further provided with a third anti-retreat part 230. The third anti-retreat part 230 protrudes from the second bracket 200 along the fourth direction, and the third anti-retreat part 230 is used to abut against the middle frame 500.

[0089] By providing the third anti-retreat part 230 protruding along the fourth direction on the second bracket 200 to abut against the middle frame 500, when the pressing part 220 is accidentally pressed and the anti-retreat function of the second anti-retreat part 520 on the first anti-retreat part 210 fails, the abutment of the third anti-retreat part 230 and the middle frame 500 can be utilized to prevent the second bracket 200 from moving away from the first bracket 100, thereby ensuring the normal use of the filter assembly.

[0090] Specifically, in this embodiment, taking the filter assembly installed at the air inlet 570 of the wall-mounted air conditioner indoor unit as an example, the fourth direction is a direction roughly downward. The third anti-retreat part 230 protrudes downward and can abut against the front side wall of the air inlet 570 of the middle frame 500. Among them, in this embodiment, the third anti-retreat part 230 is a convex rib that protrudes roughly downward. More specifically, the third anti-retreat part 230 can connect the second and third of the four first grid bars 110 arranged side by side in the second bracket 200 and is located in the first direction of the pressing part 220. In another implementation manner, the third anti-retreat part 230 can also be a convex block or a convex column that protrudes roughly downward. However, with the convex rib arrangement, since its contact area with the middle frame 500 is longer and the range that can be supported by the middle frame 500 is larger, its anti-retreat effect is better.

[0091] When the filter assembly needs to be completely removed from the middle frame 500, not only the pressing part 220 is pressed to release the locking of the first anti-retreat part 210 on the second anti-retreat part 520, but also the third anti-retreat part 230 needs to be lifted to release the anti-retreat effect of the middle frame 500 on the third anti-retreat part 230. The specific lifting method can be: with Figure 6 and Figure 7Taking the orientation shown as an example, after pressing down the pressing portion 220 to make the first anti-retreat portion 210 descend and disengage from the second anti-retreat portion 520, rotate one of the two second grid bars 120 of the second bracket 200 close to the flexible support 300 or the pressing portion 220 in the clockwise direction, so that the second bracket 200 rises, and the third anti-retreat portion 230 rises to disengage it from the middle frame 500.

[0092] Among them, it should be noted that the restoring effect of the deformation portion 430 or the deformation portion 430 plus the flexible support 300 is used to Figure 5 Taking the orientation shown as a reference, it can only make the second bracket 200 have a tendency to move horizontally to the left, and this movement tendency is blocked by the middle frame 500, and it cannot make the second bracket 200 have a tendency to rotate clockwise in the figure, so it will not cause the third anti-retreat portion 230 to disengage from the middle frame 500.

[0093] Such as Figures 1 - 5 and Figure 8 、 Figure 9 As shown in

[0094] Optionally, the flexible support 300 has a thinning area, and the thinning area includes a first thinning area 310 located in the middle of the length direction of the flexible support 300 and / or a second thinning area 320 located at the end of the length direction of the flexible support 300.

[0095] By setting the thinning area, since the stiffness of the thinning area is less than the stiffness of the local part of the flexible support 300 outside the thinning area, when the flexible support 300 is stressed, the deformation of the thinning area is significantly greater than that of the non-thinning area, which is beneficial to controlling the deformation position of the flexible support 300. By setting the first thinning area 310 in the middle of the length direction of the flexible support 300, the first thinning area 310 can be used to form the corner part where the two arms of the depression of the flexible support 300 are connected, so as to control the maximum deformation position of the flexible support 300 and reduce the deformation stress of the flexible support 300.

[0096] Among them, the first thinning area 310 on each flexible support 300 can be multiple spaced thinning areas. The multiple spaced thinning areas make the first thinning area 310 of the flexible support 300 form the shape of a rack, and can also be a continuous whole thinning area, which can also play the role of reducing the local stiffness and controlling the position with larger deformation to the first thinning area 310.

[0097] In this embodiment, at one end of the flexible support member 300 in the length direction, that is, the end connected to the first bracket 100, a second thinning region 320 is provided. Similarly, the second thinning region 320 can be a continuous thinning region or multiple spaced thinning regions. The multiple spaced thinning regions make the second thinning region 320 of the flexible support member 300 form the shape of a rack, and can also play the role of reducing the local stiffness and controlling the position with larger deformation to be the second thinning region 320.

[0098] As Figure 5 shown, optionally, the first side surface of the first thinning region 310 is thinned and recessed or the surface of the first thinning region 310 facing away from the first side surface is thinned and recessed; and / or, the first side surface of the second thinning region 320 is thinned and recessed or the surface of the second thinning region 320 facing away from the first side surface is thinned and recessed.

[0099] When the first side surface of the first thinning region 310 is thinned and recessed, when the first thinning region 310 and the adjacent region solidify, the material of the adjacent region will gradually converge and bend towards the surface of the first thinning region 310 facing away from the first side surface, and a shape recessed towards the opposite side of the first side surface can be formed in the first thinning region 310, which is beneficial to making the bulge on the first side surface more pronounced when the two ends of the flexible support member 300 are pressed, and forming the desired deformation direction.

[0100] When the first thinning region 310 bends, the surface facing away from the first side surface is in a recessed state and is subjected to greater pressure. Thinning and recessing the surface of the first thinning region 310 can reduce the material of this surface of the first thinning region 310, thereby reducing the degree of pressure on the material and reducing the possibility of fracturing due to excessive pressure on the material.

[0101] When the surface of the second thinning region 320 facing away from the first side surface is thinned and recessed, when the second thinning region 320 and the adjacent region solidify, the material of the adjacent region will gradually converge and bend towards the first side surface of the second thinning region 320, and a shape recessed towards the second side surface can be formed in the second thinning region 320, which is beneficial to making the region of the flexible support member 300 adjacent to the second thinning region 320 deform in the direction that makes the first thinning region 310 bulge towards the first side surface when the two ends of the flexible support member 300 are pressed, and forming the desired deformation direction.

[0102] When the first side surface of the second thinning region 320 bends, the first side surface is in a recessed state and is subjected to greater pressure. Thinning and recessing the surface of the second thinning region 320 can reduce the material of this surface of the second thinning region 320, thereby reducing the degree of pressure on the material and reducing the possibility of fracturing due to excessive pressure on the material.

[0103] Among them, in this embodiment, a combination of the first thinning region 310 and the first-side thinning depressions of the second thinning region 320 is adopted. In other implementation manners, it may also be a combination of the first-side thinning depressions of the first thinning region 310 and the second thinning region 320, or the first-side thinning depressions of the first thinning region 310 and the second-side thinning depressions of the second thinning region 320, or the second-side thinning depressions of the first thinning region 310 and the first-side thinning depressions of the second thinning region 320. All can achieve corresponding effects.

[0104] Embodiment 2:

[0105] Figure 11 is a partial schematic view of the middle frame in the air conditioner provided by the second embodiment of the present invention; Figure 12 is a partial schematic view of the middle frame in the air conditioner provided by the second embodiment of the present invention when observed from another direction; As Figure 4 、 Figure 5 and Figure 11 、 Figure 12 shown, Embodiment 2 also provides an air conditioner, including a middle frame 500 and the filter assembly of any one of the above. The middle frame 500 is provided with an air inlet 570, the filter assembly is installed at the air inlet 570, the air inlet 570 is provided with a third bracket 510, and the third bracket 510 is provided with a second anti-retreat portion 520.

[0106] By providing the above filter assembly in the air conditioner, correspondingly, the air conditioner has all the advantages of the above filter assembly, which will not be elaborated here one by one.

[0107] Specifically, in this embodiment, the third bracket 510 of the middle frame 500 can also be formed by grid bars intersecting vertically and horizontally. Specifically, it includes a third grid bar 511 extending in the front-rear direction and a fourth grid bar 512 extending in the left-right direction. The first grid bar 110 of the first bracket 100 can be correspondingly arranged with the third grid bar 511. The second grid bar 120 can be correspondingly arranged with the fourth grid bar 512, except for one fourth grid bar 512 of the first bracket 100 that is farthest from the flexible support 300, because this grid bar can correspond to the cross beam at the rear of the top of the middle frame 500. With this setting, it is beneficial to reduce the obstruction to the air flow generated by the third bracket 510 alone, so as to improve the air intake efficiency.

[0108] In this embodiment, the third grid bar 511 and the fourth grid bar 512 at the edge of the third bracket 510 generally present the shape of the Chinese character "concave", and the second anti-retreat portion 520 is arranged at the corners at the top of the two side walls of the concave part of the concave shape, corresponding to the first anti-retreat portion 210.

[0109] In addition to corresponding to the second grid bars 120 of the first support 100, the third support 510 also has a fourth grid bar 512 that generally corresponds to the second grid bars 120 connecting the lowest parts of the respective flexible supports 300. By providing this fourth grid bar 512, the length of the part of the third support 510 that belongs to the cantilever beam structure can be reduced, and the stiffness of the connection between the second anti-retreat part 520 and the third anti-retreat part 230 is improved.

[0110] In addition, in this embodiment, the middle frame 500 may further be provided with a first support part 550 and a second support part 560. The first support part 550, the second support part 560, and the guiding lower wall 532 of the guiding groove are arranged in sequence along the reverse direction of the first direction. The third support 510 on the middle frame 500 can cooperate with the three to support the filter screen assembly inserted into the middle frame 500 in the up and down directions. Among them, the first support part 550 and the second support part 560 are arranged at intervals, and the interval between the two can be used for the deformation part 430 or the deformation part 430 and the flexible support 300 to bend downward.

[0111] Among them, the first support part 550 can be used to prevent the deformation part 430 or the deformation part 430 and the flexible support part from bending downward in advance, so that the force transmitted to the first support 100 by the flexible support 300 can be realized. That is, during the process of inserting the filter screen assembly into the middle frame 500, the deformation part 430 can start to deform downward only after passing over the part of the first support part 550. In other words, the first support part 550 can limit the position where the deformation part 430 starts to deform on the side close to the second support 200 in the front and back directions, and the second support part 560 is arranged at a position close to the guiding lower wall 532 of the guiding groove, which can limit the position where the deformation part 430 starts to deform on the side close to the first support 100 in the front and back directions. Therefore, when the filter screen assembly is installed in place, the first support part 550 and the second support part 560 can limit the deformation range of the filter screen body 400 within the expected position to ensure that the deformation part 430 bent and raised along the air inlet direction does not significantly interfere with the air inlet process.

[0112] In addition, on the front side wall of the air inlet 570 of the middle frame 500, a groove 540 is further provided. The groove 540 is recessed forward from the side wall to match the third anti-retreat part 230, so as to facilitate the positioning of the third anti-retreat part 230.

[0113] The operation principle of this embodiment is as follows:

[0114] Figure 13 It is a partial schematic diagram of the air conditioner provided by the second embodiment of the present invention when the filter screen assembly is just inserted into the middle frame; Figure 14 It is a partial cross-sectional view of the air conditioner provided by the second embodiment of the present invention when the filter screen assembly is just inserted into the middle frame; Figure 15Partial schematic diagram of inserting the first bracket into the guiding structure in the air conditioner provided in the second embodiment of the present utility model; Figure 16 Partial cross-sectional view of inserting the first bracket into the guiding structure in the air conditioner provided in the second embodiment of the present utility model; Figures 4 - 5 and Figures 13 - 16 Shows the process of loading the filter assembly into the middle frame 500.

[0115] As Figure 13 and Figure 14 Show the state when the first bracket 100 is just inserted into the middle frame 500. Under the guidance of the guiding part 150, the first bracket 100 can smoothly enter between the two side walls of the air inlet 570 in the left-right direction, and under the action of the first convex rib 140, the first bracket 100 can also smoothly enter between the third bracket 510 and the first supporting part 550.

[0116] Figure 14 In, although the second anti-retreat part 520 is located above the rear end of the first bracket 100, and the first supporting part 550 is located below the rear end of the first bracket 100. However, Figure 14 As can be seen in, the second anti-retreat part 520 is represented by hatching, while the first supporting part 550 is not represented by hatching. It shows that the cutting plane passes through the second anti-retreat part 520, but does not pass through the first supporting part 550. That is, in the left-right direction, the first supporting part 550 does not correspond to the second anti-retreat part 520. Even if the first bracket 100 is pressed down by the second anti-retreat part 520, but since the first bracket 100 is not an absolute rigid body, so after the middle part of the first bracket 100 is pressed down by the second anti-retreat part 520, the left and right ends of the first bracket 100 can still be supported by the first supporting part 550. Therefore, the setting of the first supporting part 550 and the second anti-retreat part 520 will not cause the first bracket 100 to be unable to enter the middle frame 500.

[0117] Figure 15 and Figure 16 Show the state when the first bracket 100 has been inserted into the guiding groove of the guiding structure 530. In the figure, it has been shown that the first convex rib 140 abuts against the guiding upper wall 531 of the guiding groove, and the first bracket 100 moves relative to the middle frame 500, and frictional force is generated here. Similarly, the first protruding part 130 on the first bracket 100 also moves relative to the bottom of the guiding groove and generates frictional force. Thus, it is ensured that the movement of the first bracket 100 can be resisted by the middle frame 500. And at this time, since the bottom surface of the flexible support member 300 is supported by the first supporting part 550, the flexible support member 300 can also transmit the backward thrust of the second bracket 200. Of course, the thrust on the first bracket 100 can also be applied by the operator passing through the hollow area between the third brackets and applying it to the second grid bar 120 of the first bracket 100.

[0118] Figure 4 and Figure 5 The figure shows the state after the first bracket 100 has been installed in place. As the first bracket 100 encounters resistance during backward movement, and there is no first support portion 550 to support the flexible support member 300 and the deformation portion 430 below, the flexible support member 300 and the deformation portion 430 deform downward. Moreover, the second support portion 560 confines the deformation of the deformation portion 430 and the flexible support member 300 to the left region shown in Figure 5 When the first guiding surface 212 meets the second guiding surface 522, under the thrust force received by the second bracket 200, the first anti-retreat portion 210 moves downward and then crosses over the second anti-retreat portion 520. Then, under the restoring force of the flexible support member 300 and the deformation portion 430, the first anti-retreat portion 210 abuts against the second anti-retreat portion 520 to prevent the flexible support member 300 from continuing to expand, that is, to prevent the second bracket 200 from moving away from the first bracket 100. At this time, the third anti-retreat portion 230 also abuts against the groove 540 of the middle frame 500, achieving a double insurance for anti-retreat.

[0119] As Figure 6 shown, when it is necessary to remove the filter assembly, the pressing portion 220 can be pressed downward, so that the second anti-retreat portion 520 also moves downward accordingly, which can be seen from the comparison with the Figure 6 and Figure 5 partial enlarged view in. Moreover, since the pressing portion 220 is connected to two first grid bars 110, and the third bracket 510 also presents a concave shape of Chinese characters, the operator can directly press the pressing portion 220 downward without obstruction, so that the second anti-retreat portion 520 descends to release the locking between the first anti-retreat portion 210 and the second anti-retreat portion 520.

[0120] As Figure 7 shown, the operator can continue to rotate the pressing portion 220 to lift the third anti-retreat portion 230, which can be seen from the comparison with Figure 7 and Figure 6 . The third anti-retreat portion 230 is no longer blocked by the middle frame 500, and along the Figure 7 shown upper left direction, the second bracket 200 can be pulled out from the middle frame 500, and then the convex deformation degree of the flexible support member 300 and the deformation portion 430 is weakened, and finally the first bracket 100 is also pulled out from the guiding structure 530 and the middle frame 500. It should be noted that although the first support portion 550 supports the second bracket 200 at the opposite ends of the second bracket 200, since the second bracket 200 itself is not an absolute rigid body, when the pressing portion 220 in the middle of the second bracket 200 is pressed downward or rotated, it can correspondingly drive the first anti-retreat portion 210 to descend and the third anti-retreat portion 230 to rise, and will not be significantly restricted by the first support portion 550.

[0121] Although the present utility model is disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the scope defined by the claims.

[0122] Finally, it should also be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the said element.

[0123] In the above embodiments, the descriptions of directions such as "upper" and "lower" are all based on the drawings shown.

[0124] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model.

[0125] Therefore, the present utility model will not be limited to these embodiments shown in this text, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A filter screen assembly, characterized in that, It includes a bracket and a filter mesh body (400). The bracket includes a first bracket (100) and a second bracket (200) arranged at intervals. The filter mesh body (400) includes a first fixing portion (410) fixedly connected to the first bracket (100), a second fixing portion (420) fixedly connected to the second bracket (200), and a deformation portion (430) connecting the first fixing portion (410) and the second fixing portion (420). The first fixing portion (410), the deformation portion (430), and the second fixing portion (420) are arranged in sequence along a first direction. The second bracket (200) is provided with a first anti-retreat portion (210), and the first anti-retreat portion (210) is used to abut against a second anti-retreat portion (520) provided on the middle frame (500) to prevent the second bracket (200) from moving away from the first bracket (100) along the first direction. The deformation portion (430) is configured such that when the distance between the first bracket (100) and the second bracket (200) shrinks, the degree of bending protrusion of the deformation portion (430) in the air inlet direction increases.

2. The filter assembly according to claim 1, wherein, The bracket further includes a flexible support member (300). The flexible support member (300) connects the first bracket (100) and the second bracket (200). The stiffness of the flexible support member (300) in the first direction is less than that of the first bracket (100) and the second bracket (200), and the flexible support member (300) is fixedly connected to the deformation portion (430).

3. The filter assembly according to claim 2, wherein, The filter mesh assembly is configured to be installed on the middle frame (500). The first bracket (100) is configured to abut against a guiding structure (530) of the middle frame (500) in a direction perpendicular to the first direction, and the first bracket (100) is configured to be in sliding friction connection with the guiding structure (530).

4. The filter screen assembly according to claim 3, wherein The opposite end faces of the first bracket (100) are provided with first protruding portions (130), and / or the surfaces of the first bracket (100) in a second direction are provided with first convex ribs (140).

5. The filter assembly according to claim 1, wherein, The surface of the first anti-retreat portion (210) facing a third direction forms a first guiding surface (212), and / or the surface of the second anti-retreat portion (520) facing the first direction forms a second guiding surface (522), and the third direction is opposite to the first direction.

6. The filter screen assembly according to claim 1, wherein The second bracket (200) is provided with a pressing portion (220), and the pressing portion (220) and the first anti-retreat portion (210) are arranged along the first direction.

7. The filter assembly according to claim 6, characterized in that, The second bracket (200) includes first grid bars (110) arranged side by side. The first grid bars (110) extend along the first direction, and the pressing portion (220) protrudes from the first grid bars (110) in a second direction; and / or the pressing portion (220) connects adjacent first grid bars (110).

8. The filter assembly according to any one of claims 1-7, characterized in that, The second bracket (200) is further provided with a third anti-retreat portion (230), the third anti-retreat portion (230) protruding from the second bracket (200) along a fourth direction, and the third anti-retreat portion (230) is used for abutting against the middle frame (500).

9. The filter screen assembly according to any one of claims 2-4, characterized in that, The flexible support member (300) has a thinning area, and the thinning area includes a first thinning area (310) located in the middle of the length direction of the flexible support member (300) and / or a second thinning area (320) located at the end of the length direction of the flexible support member (300).

10. An air conditioner, characterized in that, The air conditioner includes a middle frame (500) and the filter assembly according to any one of claims 1-9. The middle frame (500) is provided with an air inlet (570), the filter assembly is installed at the air inlet (570), the air inlet (570) is provided with a third bracket (510), and the third bracket (510) is provided with the second anti-retreat portion (520).

Images