A filter framework and a filter component including the same

Abstract

The present application discloses a filter frame and a filter assembly including the same. The filter frame includes: a first frame, a second frame, and a pair of connecting members. The second frame is respectively connected to a pair of side portions of the first frame through the pair of connecting members, and the pair of connecting members block the butt joint seams formed between the second frame and the pair of side portions of the first frame, or prevent the formation of butt joint seams between the second frame and the pair of side portions of the first frame. When an operator installs the filter assembly, the operator can first bond only the bottom and the top of the filter to bond the filter to the first frame, and then bond the whole to the second frame. After the connection between the first frame and the second frame is completed, glue is poured between the side portions of the filter and the frame. At this time, the position of the filter relative to the filter frame has been fixed, and the filter will no longer squeeze the glue. Therefore, the glue will not overflow from the butt joint seams.

Description

Technical Field

[0001] The present application relates to the field of air treatment devices, and particularly relates to a filter frame and a filter assembly including the same. Background Art

[0002] In an air treatment device, a filter can be installed into a filter frame to obtain a filter assembly. In some filter assemblies, the filter is installed on the inner side of the filter frame through an adhesive process. Connecting the filter and the filter frame through the adhesive process can avoid gaps between the two, thereby ensuring that the filter assembly can achieve the expected filtration efficiency.

[0003] Since the glue has a certain fluidity, during the process of connecting the filter and the filter frame through the adhesive process, the glue easily overflows onto the outer surface of the filter frame, affecting the appearance of the filter assembly. Summary of the Invention

[0004] A filter frame generally consists of at least two frame parts. During the process of installing the filter into the filter frame, an operator first connects the filter and one of the frames, and then connects the frame and the filter as a whole to another frame after the connection is completed. Since the glue has a certain fluidity, the glue will inevitably overflow from the connection part of the two frames onto the outer surface of the filter frame, affecting the appearance of the filter assembly.

[0005] At least one object of the present application is to provide a filter frame that can prevent glue from overflowing onto the outer surface of the filter frame when installing the filter.

[0006] To solve the above problems, the present application provides a filter frame in a first aspect, the filter frame including: a first frame including a bottom and a pair of side parts disposed at opposite ends of the bottom; a second frame connected to the pair of side parts of the first frame to form the filter frame; and a pair of connecting members, the second frame being connected to the pair of side parts of the first frame respectively through the pair of connecting members, and the pair of connecting members blocking a butt joint seam formed between the second frame and the pair of side parts of the first frame, or preventing the formation of the butt joint seam between the second frame and the pair of side parts of the first frame.

[0007] According to the first aspect described above, the second frame includes a bottom and a pair of side portions, the pair of side portions being disposed at opposite ends of the bottom, and the pair of side portions of the first frame and the pair of side portions of the second frame form a pair of the docking seams, wherein the pair of connecting members overlap with the pair of docking seams to connect the pair of side portions of the first frame and the pair of side portions of the second frame so as to block the docking seams.

[0008] According to the first aspect described above, the filter frame forms opposite front side openings and rear side openings; wherein, edges of the pair of connecting members at the front side openings and the rear side openings are bent toward the inside of the filter frame to form bent portions so that the edges are away from the docking seams.

[0009] According to the first aspect described above, the bent portions are formed by bending the edges of the pair of connecting members toward the inside of the filter frame twice.

[0010] According to the first aspect described above, the first frame and the second frame are U-shaped.

[0011] According to the first aspect described above, the first frame is U-shaped, the second frame includes a bottom, and two ends of the pair of side portions of the first frame are connected to the bottom of the second frame; wherein each of the pair of connecting members includes a first folded edge formed on one of the pair of side portions of the first frame, and / or a second folded edge formed on one end of the bottom of the second frame, the first folded edge overlaps with the bottom of the second frame, and the second folded edge overlaps with the side portion of the first frame, and the connecting member is configured such that no docking seam is formed between the second frame and the pair of side portions of the first frame.

[0012] According to the first aspect described above, the filter frame forms opposite front side openings and rear side openings; edges of the first frame and the second frame at the front side openings and the rear side openings are bent toward the inside of the filter frame to form blocking portions.

[0013] According to the first aspect described above, the pair of connecting members connect the pair of side portions of the first frame and the second frame by rivets.

[0014] According to the first aspect described above, the filter frame further includes a sealing strip, the sealing strip is disposed on the inner surface of the filter frame, the sealing strip divides the inner surface of the filter frame into a gluing area and a non-gluing area, and the filter is installed in the gluing area of the filter frame by an adhesive process.

[0015] The present application provides a filter assembly in a second aspect, the filter assembly comprising: a filter; and a filter frame as described in the first aspect above; wherein, the filter is installed in the filter frame by an adhesive process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A is a perspective structural view of an embodiment of a filter assembly according to the present application;

[0017] Figure 1B is Figure 1A an exploded view of the filter frame in

[0018] Figure 1C is Figure 1A a top view of the filter frame in

[0019] Figure 1D is Figure 1C a sectional view of the filter frame shown along line A-A;

[0020] Figure 1E is Figure 1C a sectional view of the filter frame shown along line B-B;

[0021] Figure 2 is Figure 1A a perspective structural view of the connecting member in

[0022] Figure 3 is a perspective structural view of the connecting member in another embodiment of the filter frame according to the present application;

[0023] Figure 4A is a perspective structural view of another embodiment of the filter frame according to the present application;

[0024] Figure 4B is Figure 4A an exploded view of the filter frame shown;

[0025] Figure 5 is a perspective structural view of the second frame in another embodiment of the filter frame according to the present application;

[0026] Figure 6 is a perspective structural view of the first frame in another embodiment of the filter frame according to the present application;

[0027] Figure 7A is a perspective structural view of another embodiment of the filter frame according to the present application;

[0028] Figure 7B is Figure 7A an exploded view of the filter frame shown;

[0029] Figure 8 An exploded view of yet another embodiment of the filter frame according to the present application;

[0030] Figure 9 An exploded view of yet another embodiment of the filter frame according to the present application;

[0031] Figure 10A A three-dimensional structure diagram of yet another embodiment of the filter frame according to the present application;

[0032] Figure 10B is Figure 10A An exploded view of the filter frame shown. Detailed implementation manners

[0033] Various specific implementation manners of the present application will be described below with reference to the drawings forming a part of this specification. It should be understood that although directional terms such as "front", "rear", "upper", "lower", "left", "right", "top", "bottom", etc. are used in the present application to describe various exemplary structural parts and elements of the present application, these terms are used herein only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed in the present application can be arranged in different directions, these directional terms are used only as illustrations and should not be regarded as limitations.

[0034] Figure 1A A three-dimensional structure diagram of an embodiment of a filter assembly according to the present application, Figures 1B - 1E showing Figure 1A the specific structure of an embodiment of the filter frame in, where the dashed box shows a partial enlarged view. As Figure 1A shown, the filter assembly 110 has a length direction L, a width direction W, and a height direction H. The filter assembly 110 includes a filter 101 and a filter frame 100, and the filter 101 is bonded within the filter frame 100 by an adhesive process. When air flows through the filter 101 generally in the height direction H from top to bottom or from bottom to top, the filter 101 can purify the air.

[0035] The filter 101 is generally in the shape of a rectangular parallelepiped with a certain height, and the filter frame 100 is generally in the shape of a square box matching the filter 101. In the length direction L and the width direction W, the distance between the inner surfaces 104 of the respective side frames of the filter frame 100 is approximately equal to the length and width of the filter 101, so that when the filter 101 is bonded in the filter frame 100, there is no gap between the filter 101 and the respective side frames of the filter frame 100. When air flows through the filter 101, no air will flow through these gaps without passing through the filter 101. In the height direction H, the height of the filter frame 100 is greater than the height of the filter 101.

[0036] As Figures 1A - 1B shown, the filter frame 100 includes a first frame 105 and a second frame 106. Both the first frame 105 and the second frame 106 are U-shaped, and they are connected to each other by a pair of connecting members 103 to form the filter frame 100. In the example shown in the figure, the first frame 105 includes a bottom 111 and a pair of side portions 112, 113. The pair of side portions 112, 113 are disposed at opposite ends in the length direction L of the bottom 111 substantially symmetrically, and extend perpendicularly to the bottom 111 along the width direction W from both ends of the bottom 111. Similarly, the second frame 106 also includes a bottom 121 and a pair of side portions 122, 123. The pair of side portions 122, 123 are disposed at opposite ends in the length direction L of the bottom 121 substantially symmetrically, and extend perpendicularly to the bottom 121 along the width direction W from both ends of the bottom 121. The bottom 111 of the first frame 105 forms the bottom border of the filter frame 100, the bottom 121 of the second frame 106 forms the top border of the filter frame 100, and the pair of side portions 112, 113 of the first frame 105 and the pair of side portions 122, 123 of the second frame are connected to each other to form two side borders of the filter frame 100 substantially symmetrically. The specific structure of the side border of the filter frame 100 will be described below with reference to the structures of the side portion 112 of the first frame 105 and the side portion 122 of the second frame 106.

[0037] As Figures 1A - 1B shown, the side portion 112 of the first frame 105 and the side portion 122 of the second frame 106 abut against each other at their respective top edges to form a docking joint 108 at the abutting portion. In this embodiment, the first frame 105 and the second frame 106 are of symmetric shapes, the docking joint 108 is formed in the middle of the side border of the filter frame 100 and extends substantially along the height direction H. The upper part of one of the pair of connecting members 103 is connected to the side portion 112 by a rivet, and the lower part is connected to the side portion 122 by a rivet to connect the side portion 112 and the side portion 122 together by the connecting member 103 and block the docking joint 108.

[0038] In this embodiment, the first frame 105 and the second frame 106 are integrally formed by bending sheet metal, so there are no seams within the frames of the first frame 105 and the second frame 106 where glue can overflow. The butt joint seam 108 formed by splicing the side portion 112 of the first frame 105 and the side portion 122 of the second frame 106 connects the inner surface 104 and the outer surface 109 of the filter frame 100, making it possible for glue to overflow onto the outer surface 109 of the filter frame 100 through the butt joint seam 108, affecting the appearance of the filter assembly. The connecting member 103 is overlapped and connected to the butt joint seam 108, cutting off the connection between the inner surface 104 and the outer surface 109 of the filter frame 100 at the butt joint seam 108. In this embodiment, the connecting member 103 is connected to the inner surface 104 of the filter frame 100 at the butt joint seam 108 to cut off the connection between the inner surface 104 of the filter frame 100 and the butt joint seam 108. In some embodiments, the connecting member 103 can also be connected to the outer surface 109 of the filter frame 100 at the butt joint seam 108 to cut off the connection between the outer surface 109 of the filter frame 100 and the butt joint seam 108.

[0039] In the same way as the connection between the side portion 112 and the side portion 122, the side portion 113 of the first frame 105 and the side portion 123 of the second frame 106 also abut against each other to form the butt joint seam 108, and the other connecting member 103 in the pair of connecting members 103 overlaps and blocks the butt joint seam 108 and connects the side portion 113 and the side portion 123 together.

[0040] Thus, through a pair of connecting members 103, the corresponding side portions of the first frame 105 and the second frame 106 can be connected together to form the filter frame 100 in a generally square frame shape. And the connecting member 103 can block the butt joint seam 108 generated when the first frame 105 and the second frame 106 are connected to prevent the glue on the inner surface 104 of the filter frame 100 from overflowing onto the outer surface 109.

[0041] The following will Figure 1B be combined Figures 1C - 1E to see that the filter frame 100 forms a front opening 131 and a rear opening 132 in the height direction H for air to flow in or out, and each side of the filter 101 is used for bonding to the inner surface 104 of the filter frame 100 between the front opening 131 and the rear opening 132.

[0042] The edges of each of the pair of connecting members 103 at the front-side opening 131 and the back-side opening 132 are bent toward the inside of the filter frame 100 to form bent portions 133. As an example, the bent portions 133 are formed by bending the edges of the connecting members 103 twice. The first bend is formed by the edge of the connecting member 103 extending in a plane direction substantially parallel to the length direction L and the width direction W, and the second bend is formed by the edge formed by the first bend bending and extending in the height direction H. In some embodiments, the bent portions 133 may also be formed by bending the edges of the connecting members 103 once. As long as the edges of the connecting members 103 can be bent so that the edges 165 of the connecting members 103 are away from the butt joint 108. Even if the glue on the inner surface 104 of the filter frame 100 flows outwards, it will not flow through the edges of the connecting members 103 and the butt joint 108 and overflow onto the outer surface 109 of the filter frame 100.

[0043] Thereby, the connecting member 103 can be kept overlapping with the corresponding butt joint 108 to block the butt joint 108, but the edge of the connecting member 103 can be away from the corresponding butt joint 108, thereby preventing the glue on the inner surface 104 of the filter frame 100 from overflowing onto the outer surface 109 of the filter frame 100 through the butt joint 108 and the edge of the connecting member 103.

[0044] The edges of the filter frame 100 at the front-side opening 131 and the back-side opening 132 are bent toward the inside of the filter frame 100 to form a blocking portion 118. As an example, the bending manner of the blocking portion 118 is the same as that of the connecting member 103, and is also formed by bending the edges of the filter frame 100 twice. In this embodiment, the blocking portion 118 includes a first frame blocking portion 115 and a second frame blocking portion 125. The first frame blocking portion 115 is formed by bending the front and back edges of the first frame 105, and the second frame blocking portion 125 is formed by bending the front and back edges of the second frame 106. The bent portions 133 of the connecting members 103 are disposed inside the first frame blocking portion 115 and the second frame blocking portion 125 at the corresponding sides in an overlapping manner. Providing the blocking portion 118 integrally at the front and back edges of the filter frame 100 can play a certain role in blocking the glue on the inner surface 104 of the filter frame 100 and prevent the glue from overflowing from the front and back edges of the filter frame 100.

[0045] In Figure 1BIn the illustrated embodiment, the filter frame 100 further includes a sealing strip 138 disposed on the inner surface 104 of the filter frame 100 to divide the inner surface 104 of the filter frame 100 into a caulking area 135 and a non-caulking area 136. The filter 101 is bonded in the caulking area 135 by an adhesive process. As an example, the sealing strip 138 can have a certain thickness to block the glue within the caulking area 135 and restrict the flow of the glue, thereby better preventing the glue from overflowing.

[0046] During the process of bonding the filter 101 to the filter frame 100, the operator first coats the glue on the caulking area 135 of the inner surface 104 at the bottom 111 of the first frame 105, then pre-assembles the filter 101 in the first frame 105, and bonds the bottom of the filter 101 to the bottom 111 of the first frame 105. Since the first frame 105 is in a symmetric U-shaped configuration, the filter 101 is not prone to tipping to the side 112 or the side 113. Even if no glue is coated on the inner surfaces 104 of the side 112 and the side 113, it can be stably held in the first frame 105.

[0047] Then the operator coats the glue on the caulking area 135 of the inner surface 104 at the bottom 121 of the second frame 106, and rivets a pair of connectors 103 to the tops of a pair of sides 112, 113 of the first frame 105, or to the tops of a pair of sides 122, 123 of the second frame 106. After the glue between the filter 101 and the bottom 111 of the first frame 105 cures (i.e., stops flowing), the filter 101 and the first frame 105 are integrally bonded to the second frame 106 such that the bottom 121 of the second frame 106 is bonded to the top of the filter 101. And the pair of connectors 103 are riveted to the other pair of sides, connecting the first frame 105 and the second frame 106 together.

[0048] Finally, the operator pours glue between the filter 101 and the sides of the first frame 105 and the second frame 106, bonding the filter 101 to the sides of the first frame 105 and the second frame 106.

[0049] After long-term observation and research, the applicant found that during the process of bonding the filter, when the glue on the inner surface of the filter frame is squeezed by other parts of the filter or the filter frame, it will be particularly easy to flow through the seams on the filter frame to the outer surface of the filter frame, affecting the appearance of the filter assembly. And the filter frame of this embodiment includes a U-shaped first frame. Even if the side parts of the first frame are not filled with glue first, it will not affect the stability of the filter in the filter frame. Therefore, it is possible to bond only the bottom and top of the filter first, and then fill the glue between the side parts of the filter and the frame until the first frame and the second frame are connected. At this time, the position of the filter relative to the filter frame has been fixed, and the filter will no longer squeeze the glue. Therefore, the glue will not overflow from the docking seam.

[0050] As can be understood by those skilled in the art, in order to facilitate the pre-installation of the filter 101 in the first frame 105, a certain amount of glue can also be filled in the areas near the bottom of the side parts 112 and 113 of the first frame 105. At this time, when pre-installing the filter 101, the first frame 105 can be placed vertically, and the glue will flow along the inner surfaces 104 of the side parts 112 and 113 to the bottom 111 under the action of gravity. Therefore, the glue will not overflow from the top of the corresponding side part either.

[0051] Figure 2 Shows Figure 1A The specific structure of the connecting piece 103 in Figure 2 As shown, the connecting piece 103 includes a plate 241 and a pair of bending parts 133, and the pair of bending parts 133 are respectively arranged on the front and rear side edges of the plate 241. As described above, the bending part 133 is formed by bending the edge of the connecting piece 103 twice in the direction of the front of the plate 241.

[0052] Specifically, each bending part 133 includes a first bending part 261 and a second bending part 262. The first bending part 261 is perpendicular to the plate 241, and the second bending part 262 is parallel to the plate 241. The edge 165 of the connecting piece 103 is located at the edge of the second bending part 262 and is spaced from the plate 241 by the first bending part 261. Each bending part 133 can generally form a U-shaped groove shape with the plate 241 to accommodate a certain amount of glue and prevent the glue from overflowing to the docking seam 108 on the back of the plate 241.

[0053] In addition, two rows of riveting holes 264 are provided on the plate 241. One row of riveting holes 264 is used for riveting with the side part of the first frame 105, and the other row of riveting holes 264 is used for riveting with the side part of the second frame 106, so that the docking seam 108 formed by the corresponding side parts is overlapped and arranged on the back of the plate 241, and the edge 165 can be far away from the docking seam 108 on the back of the connecting piece 103 (see Figure 1A ).

[0054] Figure 3 Another embodiment of the filter frame shows the structure of the connecting member 303. As Figure 3 shown, the structure of the connecting member 303 is similar to that of the connecting member 103 shown in Figure 2 and also includes a plate 241 and a pair of bent portions 333, and the pair of bent portions 333 are arranged on the front and rear side edges of the plate 241. The difference is that each bent portion 333 is formed by bending once from the edge of the connecting member 303 towards the front side of the plate 241. In this embodiment, the bent portion 333 only includes a single bent portion 361, the edge 365 of the connecting member 303 is located at the edge of the single bent portion 361, and there is a gap of the single bent portion 361 between it and the plate 241. The back side of the plate 241 overlaps to block the butt joint seam, and the edge 365 is away from the butt joint seam. Thus, each bent portion 333 can block the glue from overflowing to the butt joint seam on the back side of the plate 241 through the single bent portion 361.

[0055] Figure 4A and Figure 4B show the specific structure of yet another embodiment of the filter frame of the present application, where Figure 4A is a perspective view, Figure 4B and Figure 4A is an exploded view of the filter frame in a vertically placed state. As Figure 4A and Figure 4B shown, similar to the filter frame 100, the filter frame 400 also includes a first frame 405 and a second frame 406, and the two are connected together by a connecting member. However, in this embodiment, the first frame 405 is a U-shaped frame, and the second frame 406 is a straight-shaped frame. And the connecting member is directly formed by folding the first frame 405 and the second frame 406.

[0056] Specifically, the first frame 405 includes a bottom 411 and a pair of side portions 412, 413, and the second frame 406 includes a bottom 421. The pair of side portions 412, 413 are disposed substantially symmetrically at opposite ends in the length direction L of the bottom 411 and extend upward perpendicular to the bottom 411 from both ends of the bottom 411. Moreover, the pair of side portions 412, 413 of the first frame 405 are respectively connected to both ends of the bottom 421 of the second frame 406. In this embodiment, a first folding edge 453 is formed by folding from the top edge of each side portion of the first frame 405 toward the opposite side portion along the L direction, and the first folding edge 453 can overlap and be riveted to the bottom 421 of the second frame 406. And a second folding edge 455 is formed by folding perpendicularly to the bottom 421 from the side edge of each end of the bottom 421 of the second frame 406 along the W direction, and the second folding edge 455 can overlap and be riveted to the corresponding side portions 412, 413 of the first frame 405. In this embodiment, the first frame 405 and the second frame 406 are riveted together through the folding edges without forming a butt joint seam. The glue on the inner surface 404 of the filter frame 400 thus cannot overflow to the outer surface 409 through the butt joint seam.

[0057] Similar to the filter frame 100, the filter frame 400 also has opposite front side openings 431 and rear side openings 432, and the edges of the filter frame 400 at the front side openings 431 and the rear side openings 432 are bent toward the inside of the filter frame 400 to form a blocking portion 418. In this embodiment, the blocking portion 418 is also formed by bending the edges of the filter frame 400 twice, and it includes a first frame blocking portion 415 formed by bending the front and rear side edges of the first frame 405 and a second frame blocking portion 425 formed by bending the front and rear side edges of the second frame 406. The blocking portion 418 can play a certain role in blocking the glue on the inner surface 404 of the filter frame 400 to prevent the glue from overflowing from the front and rear side edges of the filter frame 400. In this embodiment, the edges of the first folding edge 453 and the second folding edge 455 at the front side openings 431 and the rear side openings 432 are tightly connected or integrally formed with the corresponding blocking portion 418 to further prevent the glue on the inner surface 404 of the filter frame 400 from overflowing to the outer surface 409 through the gaps.

[0058] In this embodiment, the first frame 405 is still in a U shape, and the way it mounts a filter (not shown in the figure) into the filter frame 400 is similar to that of the filter frame 100. That is to say, when an operator bonds the filter to the first frame 405, it is only necessary to apply glue to the inner surface 404 of the bottom 411 of the first frame 405, and there is no need to apply glue to the inner surfaces 404 of a pair of side portions 412, 413, and the filter can be held in the first frame 405. Therefore, the filter frame 400 can also prevent the glue from overflowing when the filter is bonded into the frame.

[0059] Figure 5 The structure of the second frame in yet another embodiment of the filter frame of the present application is shown. The filter frame in this embodiment also includes a first frame and a second frame, and the structure of the first frame is as Figure 4A and 4B shown, and the structure of the second frame is as Figure 5 shown. As Figure 5 shown, the second frame 506 includes a bottom 521, and the front and rear edges of the bottom 521 are bent twice to form a second frame blocking portion 525. In this embodiment, the difference between the second frame 506 and the second frame 406 in the filter frame 400 is that no second folding edge is formed at both ends of the bottom 521. The first frame 405 and the second frame 506 are only riveted together through the first folding edge 453 on the first frame 405.

[0060] In this embodiment, the first frame 405 is still a U-shaped frame, and no docking joint is formed between the first frame 405 and the second frame 506. Therefore, the filter frame can also prevent the glue from overflowing.

[0061] Figure 6 The structure of the first frame in yet another embodiment of the filter frame of the present application is shown. The filter frame in this embodiment also includes a first frame and a second frame, and the structure of the first frame is as Figure 6 shown, and the structure of the second frame is as Figure 4A and Figure 4B shown. As Figure 6 shown, the first frame 605 includes a bottom 611 and two opposite side portions 612, 613, and the front and rear edges of the bottom 611 and the side portions 612, 613 are bent twice to form a first frame blocking portion 615. In this embodiment, the difference between the first frame 605 and the first frame 405 in the filter frame 400 is that no first folding edge is formed at the top end of each of the side portions 612, 613. The first frame 605 and the second frame 406 are only riveted together through the second folding edge 455 on the second frame 406.

[0062] Similarly, in the embodiment, the first frame 605 is still a U-shaped frame, and no docking seam is formed between the first frame 605 and the second frame 406. Therefore, the filter frame can also prevent glue overflow.

[0063] In the above embodiments, the filter frame is composed of a first frame and a second frame. The first frame is a U-shaped frame, and the second frame can be a U-shaped frame or a straight-shaped frame. Even if the operator does not pour glue into the side of the first frame first, it will not affect the stability of the filter in the filter frame. Therefore, the bottom and top of the filter can be bonded first, and then glue can be poured between the side of the filter and the frame until the connection between the first frame and the second frame is completed. At this time, the position of the filter relative to the filter frame has been fixed, and the filter will no longer squeeze the glue. Therefore, the glue will not overflow from the docking seam. Moreover, in the above embodiments, no docking seam can be formed between the first frame and the second frame, or even if a docking seam is formed, it can be blocked by the connecting member, thereby further preventing the glue from overflowing through the docking seam.

[0064] Figure 7A and Figure 7B shows the specific structure of another embodiment of the filter frame of the present application, where Figure 7A is a perspective view, Figure 7B is the exploded view of the filter frame in Figure 7A when it is placed vertically. As shown in Figure 7A and Figure 7B The filter frame 700 includes a first frame 705 and a second frame 706, and the two are connected together by a connecting member. In this embodiment, the first frame 705 and the second frame 706 are generally in an L-shaped shape, and the connecting member is formed by folding the first frame 705 and the second frame 706.

[0065] Specifically, the first frame 705 includes a bottom 711 and a side 712, and the second frame 706 includes a bottom 721 and a side 723 disposed opposite to the side 712. One end in the length direction L of the bottom 711 of the first frame 705 is used to dispose the side 712, and the other end is used to connect to the side 723 of the second frame 706. Similarly, one end in the length direction L of the bottom 721 of the second frame 706 is used to dispose the side 723, and the other end is used to connect to the side 712 of the first frame 705. In this embodiment, third folding edges 745 are respectively formed by folding from each top edge of the side 712 of the first frame 705 and the side 723 of the second frame 706 along the L direction towards the other side. The third folding edges 745 can overlap with the corresponding bottoms and be riveted together. And the other ends of the bottoms of the first frame 705 and the second frame 706 are folded to form fourth folding edges 743, and the fourth folding edges 743 are used to overlap with the corresponding sides and be riveted together. Thus, in this embodiment, the first frame 705 and the second frame 706 do not form a butt joint seam either. The glue on the inner surface of the filter frame 700 cannot overflow to the outer surface through the butt joint seam.

[0066] And in this embodiment, the fourth folding edges 743 at the bottoms of each frame are also formed by extending perpendicularly from one end of the bottom. It can also be considered that a pair of sides with different lengths are provided at both ends of the bottom. When the operator bonds the filter to the first frame 705, the glue is first applied only to the bottom 711, and after the bonding is completed, the first frame 705 and the filter as a whole are connected to the second frame 706. When applying the glue to the bottom 711 and the bottom 721, a certain distance can be left between the area where the glue is applied and the side close to the fourth folding edge 743 to prevent the glue from overflowing when the fourth folding edge 743 is riveted to the corresponding side.

[0067] Figure 8 Shows the specific structure of another embodiment of the filter frame of the present application. As Figure 8As shown, the filter frame 800 includes a first frame 805 and a second frame 806. Similar to the filter frame 700, the first frame 805 and the second frame 806 are also L-shaped frames. The first frame 805 includes a bottom 811 and a side 812, and the second frame 806 includes a bottom 821 and a side 823. The side 812 is disposed at one end of the bottom 811 in the length direction L, and the other end of the bottom 811 in the length direction L is connected to the side 823 of the second frame 806. Different from the filter frame 700, only the top edges of the sides of the first frame 805 and the second frame 806 are turned over to form a third turned-over edge 845, and the third turned-over edge 845 is used to overlap and rivet with the corresponding bottom. And the ends of their bottoms do not form turned-over edges. In this embodiment, the first frame 805 and the second frame 806 do not form a butt joint seam either. Therefore, the glue on the inner surface of the filter frame 800 cannot overflow to the outer surface through the butt joint seam. And when the operator applies glue to the bottom, the operator can also avoid the end of the bottom where no side is formed to better prevent the glue from overflowing.

[0068] Figure 9 The specific structure of still another embodiment of the filter frame of the present application is shown. As Figure 9 shown, the filter frame 900 includes a first frame 905 and a second frame 906. Similar to the filter frame 700, the first frame 905 and the second frame 906 are also L-shaped frames. The first frame 905 includes a bottom 911 and a side 912, and the second frame 906 includes a bottom 921 and a side 923. The side 912 is disposed at one end of the bottom 911 in the length direction L, and the other end of the bottom 911 in the length direction L is connected to the side 923 of the second frame 906. Different from the filter frame 700, only the top edge of the side 923 of the second frame 906 is turned over to form a third turned-over edge 945 for overlapping and riveting with the bottom 911 of the first frame 905, and the other end of the bottom 921 is turned over to form a fourth turned-over edge 943 for overlapping and riveting with the side 912 of the first frame 905, while the first frame 905 does not form a turned-over edge. In this embodiment, the first frame 905 and the second frame 906 do not form a butt joint seam either. Therefore, the glue on the inner surface of the filter frame 900 cannot overflow to the outer surface through the butt joint seam. And when the operator applies glue to the bottom, the operator can also avoid the end of the bottom where no side is formed to better prevent the glue from overflowing.

[0069] Figure 10A and Figure 10B The specific structure of still another embodiment of the filter frame of the present application is shown, where Figure 10A is a perspective view, Figure 10B and Figure 10A is an exploded view of the filter frame in a vertically placed state. AsFigure 10A and Figure 10B As shown in Figure 10B , the filter frame 1000 includes a first frame 1005 and a second frame 1006. Similar to the filter frame 700, the first frame 1005 and the second frame 1006 are also L-shaped frames. The first frame 1005 includes a bottom 1011 and a side 1012, and the second frame 1006 includes a bottom 1021 and a side 1023. Different from the filter frame 700, the connecting members in this embodiment include an independent pair of connecting members 1061, and each connecting member 1061 is used to connect the first frame 1005 and the second frame 1006 together at the corners of the filter frame 1000. In this embodiment, the top edge of the side 1012 of the first frame 1005 and the side edge of the bottom 1021 of the second frame 1006 are abutted against each other to form a docking joint 1008 at the abutting position. The top edge of the side 1023 of the second frame 1006 and the side edge of the bottom 1011 of the first frame 1005 are abutted against each other to form another docking joint 1008 at the abutting position. Each connecting member 1061 includes two parts that are substantially at a right angle. One part overlaps with the side of the corresponding frame and is riveted, and the other part overlaps with the bottom of the corresponding frame and is riveted to connect the two frames together through the connecting member 1061 and block the corresponding docking joint 1008.

[0070] In this embodiment, the edges on the front and back sides of each connecting member 1061 are bent twice to form bent portions 1033. By providing the bent portions 1033, the edges of the connecting member 1061 can be kept away from the docking joint 1008. Even if the glue on the inner surface of the filter frame 1000 flows outwards, it will not flow through the edges of the connecting member 1061 and the docking joint 1008 and overflow to the outer surface of the filter frame 1000. And when the operator applies the glue to the bottom, the operator can also avoid one end of the bottom where no side is formed to better prevent the glue from overflowing.

[0071] In other embodiments except for the filter frame 100, although not shown in the figure, a sealing strip 138 can also be provided on the inner surface of the filter frame as in the filter frame 100 to further prevent the glue from overflowing.

[0072] In the present application, the filter frame is composed of a first frame and a second frame. When installing the filter component, an operator can first bond the filter to the first frame and then bond the whole to the second frame. In some embodiments, a docking joint is formed between the first frame and the second frame, and the first frame and the second frame are connected together by a connecting member that blocks the docking joint, preventing glue from overflowing through the docking joint. In some embodiments, no docking joint is formed between the first frame and the second frame to avoid glue overflowing through the docking joint. A connecting member formed by a folded edge overlaps and is riveted to the first frame and / or the second frame to form the filter frame. And in some embodiments, the first frame can be a U-shaped frame to increase the stability when the filter is bonded to the first frame. Even if the operator does not pour glue into the side of the first frame first, it will not affect the stability of the filter in the filter frame. Therefore, the bottom and top of the filter can be bonded first, and then glue can be poured between the side of the filter and the frame until the connection between the first frame and the second frame is completed. At this time, the position of the filter relative to the filter frame has been fixed, and the filter will no longer squeeze the glue. Therefore, the glue will not overflow from the docking joint.

[0073] Although the present application will be described with reference to the specific embodiments shown in the accompanying drawings, it should be understood that the filter frame and the filter component of the present application can have many variations without departing from the spirit and scope and background of the teachings of the present application. Those of ordinary skill in the art will also realize that there are different ways to change the structural details in the embodiments disclosed in the present application, all of which fall within the spirit and scope of the present application and the claims.

Claims

1. A filter framework, characterized in that: The filter frame includes: A first frame, the first frame including a bottom and a pair of side portions, the pair of side portions being disposed at opposite ends of the bottom; A second frame, the second frame being connected to the pair of side portions of the first frame to form the filter frame; and A pair of connecting members, the second frame being connected to the pair of side portions of the first frame respectively through the pair of connecting members, wherein the first frame, the second frame, and the pair of connecting members are configured in any one of the following situations: Situation (1) - both the first frame and the second frame are U-shaped, the second frame includes a bottom and a pair of side portions, the pair of side portions of the second frame being disposed at opposite ends of the bottom of the second frame, each of the pair of connecting members including a plate and a pair of bent portions, the pair of bent portions being respectively disposed at two side edges of the plate, wherein when the first frame is connected to the second frame, a pair of docking seams are formed between the pair of side portions of the first frame and the pair of side portions of the second frame, and the pair of connecting members block the pair of docking seams formed between the pair of side portions of the second frame and the pair of side portions of the first frame, or Situation (2) - the first frame is U-shaped, the second frame includes a bottom, the two ends of the pair of side portions of the first frame are connected to the bottom of the second frame, and the pair of connecting members are formed by folding the first frame and / or the second frame, so that no pair of docking seams are formed between the second frame and the pair of side portions of the first frame.

2. The filter frame according to claim 1, wherein: In situation (1), each of the pair of connecting members overlaps with the pair of docking seams to connect the pair of side portions of the first frame and the pair of side portions of the second frame, so as to block the pair of docking seams.

3. The filter frame according to claim 2, wherein: The filter frame forms opposite front-side openings and rear-side openings; wherein, the edges of the pair of connecting members at the front-side openings and the rear-side openings are bent towards the inside of the filter frame to form the bent portions, so that the edges are away from the pair of docking seams.

4. The filter frame according to claim 3, wherein: The bent portions are formed by bending the edges of the pair of connecting members towards the inside of the filter frame twice.

5. The filter frame according to claim 1, wherein: In situation (2), each of the pair of connecting members includes a first folded edge formed on one of the pair of side portions of the first frame, and / or a second folded edge formed on one end of the bottom of the second frame, the first folded edge overlapping with the bottom of the second frame, and the second folded edge overlapping with the side portion of the first frame, and the connecting member is configured such that no pair of docking seams are formed between the second frame and the pair of side portions of the first frame.

6. The filter frame according to claim 1, wherein: The filter frame forms opposite front openings and rear openings; Edges of the first frame and the second frame at the front openings and the rear openings are bent towards the interior of the filter frame to form blocking portions.

7. The filter frame according to claim 1, wherein: The pair of connecting members connect the pair of side portions of the first frame and the second frame by rivets.

8. The filter frame according to claim 1, wherein: The filter frame further includes a sealing strip, the sealing strip is disposed on the inner surface of the filter frame, the sealing strip divides the inner surface of the filter frame into a caulking area and a non-caulking area, wherein the filter is installed in the caulking area of the filter frame by an adhesive process.

9. A filter component, characterized in that: The filter assembly includes: A filter; and A filter frame, the filter frame being as described in any one of claims 1-8; Wherein, the filter is installed in the filter frame by an adhesive process.

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