Filter assemblies and air purification devices containing them

Abstract

This utility model discloses a filter assembly and an air purification device having the same. The filter assembly includes: a carbon-coated filter, which is bent to form multiple crests and multiple troughs, each crest and each trough extending in the same direction, and the crests and troughs being arranged alternately in another direction; the carbon-coated filter has multiple carbon-coated through holes and / or multiple air-permeable through holes; and a filter frame, which surrounds the outer periphery of the carbon-coated filter and is located on opposite sides of the carbon-coated filter in the thickness direction of the carbon-coated filter. The filter assembly according to the embodiment of this utility model has advantages such as improved assembly efficiency and cost savings.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and in particular to a filter assembly and an air purification device having the same. Background Technology

[0002] In existing air purifier filter technology, filters involving carbon adhesion (i.e., adhering to filter carbon particles) are usually designed with a flat structure (such as plastic honeycomb, paper honeycomb, plastic mesh filter, etc.). When multiple layers of carbon adhesion are required, the carbon-adhesive filter and the filter frame cannot meet the requirements for rapid assembly, which requires increasing the amount of adhesive used, increasing the assembly process and cost. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a filter assembly that has advantages such as improved assembly efficiency and cost savings.

[0004] To achieve the above objectives, an embodiment of the present invention provides a filter assembly comprising: a carbon-coated filter, wherein the carbon-coated filter is bent to form multiple crests and multiple troughs, each crest and each trough extending in the same direction, and the multiple crests and multiple troughs being arranged alternately in another direction; the carbon-coated filter having multiple carbon-coated through holes and / or multiple air-permeable through holes; and a filter frame, wherein the filter frame surrounds the outer periphery of the carbon-coated filter and is located on opposite sides of the carbon-coated filter in the thickness direction of the carbon-coated filter.

[0005] The filter assembly according to the present invention has advantages such as improved assembly efficiency and cost savings.

[0006] According to some specific embodiments of the present invention, the filter frame includes: a first frame disposed on one side of the thickness direction of the carbon-adhesive filter; and a second frame disposed on the other side of the thickness direction of the carbon-adhesive filter. The outer periphery of the first frame has a first circumferential edge bent toward the second frame, and the outer periphery of the second frame has a second circumferential edge bent toward the first frame. The outer periphery of the first circumferential edge has a groove, and the second circumferential edge has a buckle protruding toward the center. The buckle and the groove engage with each other to install the first frame and the second frame.

[0007] According to some specific embodiments of the present invention, the second frame is constructed with positioning posts extending in the direction of the first frame, and the edge of the carbon-adhesive filter screen is constructed with positioning holes corresponding to the positions of the positioning posts, and the positioning posts are inserted through the positioning holes.

[0008] According to some specific embodiments of the present invention, the positioning posts are arranged in pairs along the edge of the second frame, the positioning holes are constructed as elongated holes, and the paired positioning posts are respectively located at both ends of the elongated hole in the length direction.

[0009] According to some specific embodiments of this utility model, each pair of positioning columns is connected by a connecting rib.

[0010] According to some specific embodiments of the present invention, the carbon-adhesive filter screen includes: a filter screen body; an edge-wrapping portion, wherein the edge-wrapping portion is disposed at the edge of the filter screen body and covers both sides of the filter screen body in the thickness direction, and the positioning hole passes through the edge-wrapping portion; and the edge-wrapping portion is formed by folding a metal mesh over both sides of the filter screen and flattening the edge of the filter screen body.

[0011] According to some specific embodiments of the present invention, the second frame is constructed with a limiting protrusion protruding in the direction of the first frame, and the limiting protrusion surrounds the outer periphery of the carbon-adhesive filter screen.

[0012] According to some specific embodiments of the present invention, the limiting protrusions are arranged in pairs along the edge of the carbon-adhesive filter screen.

[0013] According to some specific embodiments of the present invention, the carbon-coated filter screen is multi-layered, and the crests and troughs of adjacent carbon-coated filter screens are arranged alternately.

[0014] An air purification device according to a second aspect of the present invention includes a filter assembly according to the above-described embodiments of the present invention.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the filter assembly according to an embodiment of the present utility model; Figure 2 This is a partial structural schematic diagram of a filter assembly according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the carbon-adhesive filter screen of the filter screen assembly according to an embodiment of the present utility model; Figure 4 This is another structural schematic diagram of the carbon-adhesive filter screen of the filter screen assembly according to an embodiment of the present utility model; Figure 5This is a schematic diagram of the structure of the first frame of the filter assembly according to an embodiment of the present utility model; Figure 6 yes Figure 5 A partial schematic diagram; Figure 7 This is a schematic diagram of the second frame of the filter assembly according to an embodiment of the present utility model; Figure 8 yes Figure 7 A partial schematic diagram.

[0017] Figure label: Filter assembly 100, carbon-coated filter 10, filter frame 20 1. Crest section; 2. Trench section; 3. Carbon adhesion through hole; 4. Ventilation through hole; 5. Positioning hole. Filter body 11, edging portion 12, first frame 21, second frame 22, first circumference 211, 212 slot, 221 second ring edge, 222 buckle, 223 positioning post, 224 connecting rib, 225 limiting protrusion. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0021] In the description of this utility model, "multiple" means two or more, and "several" means one or more.

[0022] The filter assembly 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0023] like Figures 1-7 As shown, the filter assembly 100 according to an embodiment of the present invention includes a carbon-coated filter 10 and a filter frame 20.

[0024] The carbon-coated filter screen 10 is bent to form multiple crests 1 and multiple troughs 2. Each crest 1 and each trough 2 extends in the same direction, while the crests 1 and troughs 2 are arranged alternately in another direction. The carbon-coated filter screen 10 has multiple carbon-coated through holes 3 and / or multiple air-permeable through holes 4. The filter screen frame 20 surrounds the outer periphery of the carbon-coated filter screen 10 and is located on opposite sides of the carbon-coated filter screen 10 in the thickness direction of the carbon-coated filter screen 10.

[0025] In this process, activated carbon particles, carbon blocks, or carbon powder (not shown in the figure) are adhered to the carbon-adhesive filter screen 10, thereby achieving the effects of air filtration or adsorption when air flows through the carbon-adhesive filter screen 10.

[0026] According to the filter assembly 100 of this utility model embodiment, the filter frame 20 surrounds the outer periphery of the carbon-adhesive filter 10 and is located on opposite sides of the carbon-adhesive filter 10 in the thickness direction, so that the filter frame 20 can tightly wrap the carbon-adhesive filter 10 to form an integral structure. Since the filter frame 20 and the carbon-adhesive filter 10 are tightly bonded by physical means, the reliance on adhesive is reduced. In conventional methods, a large amount of adhesive is required to fix the frame and the filter, while this design can fix it mechanically, thereby reducing the amount of adhesive used. The filter frame 20 itself can serve to fix the carbon-adhesive filter 10, eliminating the need for additional connectors. This not only reduces assembly steps but also reduces the risk of assembly failure due to missing or damaged connectors, further improving assembly efficiency. Simultaneously, reducing the use of adhesives and other components, simplifying assembly processes, and optimizing material usage all work together to reduce production costs.

[0027] Therefore, the filter assembly 100 according to the present invention has advantages such as improved assembly efficiency and cost savings.

[0028] In some optional embodiments of this utility model, such as Figure 5 and Figure 6 As shown, the filter frame 20 includes a first frame 21 and a second frame 22. The first frame 21 is disposed on one side of the carbon-adhesive filter 10 in the thickness direction. The second frame 22 is disposed on the other side of the carbon-adhesive filter 10 in the thickness direction. The outer periphery of the first frame 21 has a first annular edge 211 bent toward the second frame 22, and the outer periphery of the second frame 22 has a second annular edge 221 bent toward the first frame 21. The outer periphery of the first annular edge 211 has a groove 212, and the second annular edge 221 has a buckle 222 protruding toward the center. The buckle 222 and the groove 212 engage with each other to install the first frame 21 and the second frame 22.

[0029] The interlocking of the clips 222 and slots 212 between the first frame 21 and the second frame 22 provides a stable connection, effectively preventing the filter assembly 100 from loosening or falling off due to vibration or external force during use, thus enhancing the overall structural stability. Simultaneously, the clips 222 and slots 212 make the installation of the filter frame 20 simpler and more intuitive. Operators only need to insert the clips 222 into the slots 212 to secure the filter frame 20, saving time on manual adjustment and fitting, and improving assembly efficiency. When maintenance or replacement of the carbon-adhesive filter 10 is required, the clips 222 and slots 212 can be used to easily disassemble the filter frame 20, facilitating cleaning or filter replacement and improving maintenance efficiency.

[0030] In some optional embodiments of this utility model, such as Figure 6 and Figure 7 As shown, the second frame 22 is constructed with positioning posts 223 extending in the direction of the first frame 21. The edge of the carbon-adhesive filter screen 10 is constructed with positioning holes 5 corresponding to the positions of the positioning posts 223, and the positioning posts 223 pass through the positioning holes 5. The positioning holes 5 can be located at the edge of the carbon-adhesive filter screen 10 or at the middle of the carbon-adhesive filter screen 10.

[0031] The engagement of the positioning post 223 and the positioning hole 5 ensures accurate alignment of the carbon-adhesive filter screen 10 within the filter frame 20. This precise positioning prevents uneven filtration or performance degradation caused by positional deviations, thus guaranteeing the effectiveness and performance of the carbon-adhesive filter screen 10. The positioning post 223 is securely inserted into the positioning hole 5, making the carbon-adhesive filter screen 10 less prone to movement or deformation during use, thereby improving its stability and reducing displacement due to vibration or external impact. Furthermore, the positioning post 223 and positioning hole 5 allow for quick and accurate placement of the carbon-adhesive filter screen 10 during assembly, reducing the need for adjustments and positional corrections, and improving assembly efficiency.

[0032] In some optional embodiments of this utility model, such as Figure 4 and Figure 7 As shown, the positioning posts 223 are arranged in pairs along the edge of the second frame 22, and the positioning holes 5 are constructed as elongated holes. The paired positioning posts 223 are located at both ends of the elongated hole along its length.

[0033] Pairs of positioning posts 223 are located at both ends of the positioning holes 5 in the elongated perforation, ensuring that the carbon-adhesive filter screen 10 is accurately positioned on the second frame 22 during installation. The structure of the elongated perforation allows for fine-tuning of the carbon-adhesive filter screen 10 within a certain range, thereby better accommodating dimensional tolerances or installation errors of the frame. For example, in mass production, slight deviations in the dimensions of the carbon-adhesive filter screen 10 and the filter frame 20 may occur due to manufacturing tolerances. The elongated perforation structure provides a certain adjustment range to ensure accurate installation of the carbon-adhesive filter screen 10.

[0034] In some optional embodiments of this utility model, such as Figure 7 As shown, each pair of positioning posts 223 is connected by a connecting rib 224. The connecting rib 224 connects each pair of positioning posts 223 to form a more stable overall structure, thereby enhancing the strength and stability of the positioning posts 223. This helps reduce deformation or loosening of the filter assembly 10 due to external forces during use. The connecting rib 224 can effectively distribute the pressure applied to the positioning posts 223, making the carbon-adhesive filter 10 more evenly stressed during operation. This uniform stress characteristic reduces local stress concentration and the possibility of material fatigue and failure. In addition, the connecting rib 224 can optimize the use of materials without reducing strength, thereby reducing the overall structural weight of the filter assembly 10 while maintaining its performance and durability.

[0035] In some optional embodiments of this utility model, such as Figure 4 As shown, the carbon-coated filter screen 10 includes a filter screen body 11 and an edge-wrapping portion 12. The edge-wrapping portion 12 is disposed at the edge of the filter screen body 11 and covers both sides of the filter screen body 11 in the thickness direction, and positioning holes 5 penetrate through the edge-wrapping portion 12. Furthermore, the edge-wrapping portion 12 is formed by folding a metal mesh and covering both sides of the filter screen body 11, and flattening the edge of the filter screen body 11. Specifically, a plurality of positioning holes 5 may be distributed at intervals in the edge-wrapping portion 12. The edge-wrapping portion 12 is disposed at the edge of the filter screen body 11 and covers both sides of the filter screen body 11 in the thickness direction, which can significantly enhance the overall structural strength of the carbon-coated filter screen 10. The edge-wrapping portion 12 can also reduce maintenance problems caused by damage to the edge of the carbon-coated filter screen 10. Since the edge-wrapping portion 12 protects the edge of the carbon-coated filter screen 10, the carbon-coated filter screen 10 is less likely to be damaged during use, thereby reducing the risk of filter assembly 10 failure or performance degradation due to damage to the carbon-coated filter screen 10.

[0036] In addition, after the edge banding 12 is welded, the edge is flat and will not be sharp to the touch. This can effectively protect the safety of operators when installing and replacing the carbon-adhesive filter screen 10, reduce the risk of scratches or punctures caused by the sharp edge of the carbon-adhesive filter screen 10, and improve the safety of the product during use.

[0037] In some optional embodiments of this utility model, such as Figure 6 and Figure 7 As shown, the second frame 22 is constructed with a limiting protrusion 225 protruding in the direction of the first frame 21, and the limiting protrusion 225 surrounds the outer periphery of the carbon filter screen 10.

[0038] The limiting protrusion 225 surrounds the outer periphery of the carbon-coated filter 10, precisely fixing its position and preventing displacement or shifting during use. This ensures the filter remains in the correct position throughout operation, improving filtration efficiency. For example, in an air purifier, the limiting protrusion 225 ensures the filter remains stable even under high-velocity airflow, preventing a decrease in filtration efficiency due to filter movement. Simultaneously, the surrounding structure of the limiting protrusion 225 provides additional mechanical support, resulting in a tighter contact between the carbon-coated filter 10 and the filter frame 20, thus enhancing the structural stability of the entire filter assembly 10.

[0039] In some optional embodiments of this utility model, such as Figure 6 and Figure 7 As shown, the limiting protrusions 225 are arranged in pairs along the edge of the carbon-adhesive filter screen 10. The paired limiting protrusions 225 provide more stable support, ensuring that the carbon-adhesive filter screen 10 remains fixed within the second frame 22, effectively preventing the carbon-adhesive filter screen 10 from moving or shifting due to external forces (such as airflow impact, equipment vibration, etc.) during use. The paired limiting protrusions 225 can distribute external forces more evenly, reducing deformation or damage to the carbon-adhesive filter screen 10 caused by excessive local stress, thereby improving the service life and reliability of the carbon-adhesive filter screen 10.

[0040] In some optional embodiments of this utility model, the carbon-coated filter 10 is multi-layered, with the crests 1 and troughs 2 of adjacent carbon-coated filter 10 arranged alternately. This arrangement, with adjacent carbon-coated filter 10s staggered and stacked, increases the tortuosity of the carbon-coated channel, prolonging the residence time of the gas to be filtered within the carbon-coated filter 10, thereby achieving better filtration. Optionally, the staggered stacking can be such that after two adjacent carbon-coated filter 10s are stacked, their orthographic projections perpendicular to the stacking direction do not coincide, presenting a certain angle.

[0041] The following describes an air purification device according to an embodiment of the present invention.

[0042] An air purification device according to an embodiment of the present invention includes a filter assembly 100 according to the above embodiment of the present invention.

[0043] The air purification device according to the embodiments of the present invention has advantages such as improved assembly efficiency and cost savings by utilizing the filter assembly 100 of the above embodiments of the present invention.

[0044] The filter assembly 100 and other components and operations of the air purification device according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A filter assembly, characterized in that, include: A carbon-coated filter screen, wherein the carbon-coated filter screen is bent to form multiple crests and multiple troughs, each crest and each trough extending in the same direction, and the multiple crests and multiple troughs being arranged alternately in another direction, and the carbon-coated filter screen having multiple carbon-coated through holes and / or multiple air-permeable through holes. A filter frame surrounds the outer periphery of the carbon-coated filter and is located on opposite sides of the carbon-coated filter in the thickness direction of the carbon-coated filter.

2. The filter assembly according to claim 1, characterized in that, The filter frame includes: A first frame is disposed on one side of the carbon-coated filter screen in the thickness direction; The second frame is disposed on the other side of the thickness direction of the carbon-adhesive filter screen; The first frame has a first circumferential edge that bends toward the second frame on its outer periphery, and the second frame has a second circumferential edge that bends toward the first frame on its outer periphery. The first circumferential edge has a slot on its outer periphery, and the second circumferential edge has a buckle that protrudes toward the center. The buckle and the slot engage with each other to install the first frame and the second frame.

3. The filter assembly according to claim 2, characterized in that, The second frame is constructed with positioning posts extending in the direction of the first frame, and the edge of the carbon-adhesive filter screen is constructed with positioning holes corresponding to the positions of the positioning posts, with the positioning posts passing through the positioning holes.

4. The filter assembly according to claim 3, characterized in that, The positioning posts are arranged in pairs along the edge of the second frame, and the positioning holes are constructed as elongated holes. The paired positioning posts are located at both ends of the elongated holes along their length.

5. The filter assembly according to claim 4, characterized in that, Each pair of positioning posts is connected by a connecting rib.

6. The filter assembly according to claim 3, characterized in that, The carbon-adhesive filter screen includes: Filter body; The edge-sealing portion is located at the edge of the filter body and covers both sides of the filter body in the thickness direction; the positioning hole passes through the edge-sealing portion. The edge-wrapping portion is formed by folding a metal mesh over both sides of the filter body and pressing down the edges of the filter body.

7. The filter assembly according to claim 2, characterized in that, The second frame is configured with a limiting protrusion protruding in the direction of the first frame, the limiting protrusion surrounding the outer periphery of the carbon-adhesive filter screen.

8. The filter assembly according to claim 7, characterized in that, The limiting protrusions are arranged in pairs along the edge of the carbon-adhesive filter screen.

9. The filter assembly according to claim 1, characterized in that, The carbon-coated filter screen is multi-layered, with the crests and troughs of adjacent carbon-coated filter screens arranged alternately.

10. An air purification device, characterized in that, It includes multiple filter assemblies according to any one of claims 1-9.

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