An air filter and device

Abstract

The utility model relates to air filter technical field, to the existing single -deck filter dustproof is poor, wind pressure weak, accumulative filter group covers the ground big, complex structure, maintenance difficult etc.

Description

Technical Field

[0001] This utility model relates to the field of air filtration technology, specifically to an air filter and device. Background Technology

[0002] There are various types of air filters on the market. An air filter is a product that removes particulate matter, pollutants, odors, or harmful gases from the air. A single-layer, single-performance filter has only one layer of filter, resulting in poor dust protection and weak wind pressure resistance. Stacking single-performance filters together forms a composite filter array. Each filter can have the same or different filtration performance, creating a multi-functional filter device. Because it is composed of two types of filters, it achieves dual filtration of pre-filtration and high-efficiency filtration, thus improving dust protection.

[0003] However, the addition of two filters results in a larger space occupation, which in turn increases the size of the equipment using the cumulative filter and makes the structure design of fixing the cumulative filter more complex or multi-layered. Furthermore, filter replacement is inconvenient, maintenance is cumbersome, and the performance deteriorates. Therefore, those skilled in the art have provided an air filter and device to solve the problems mentioned in the background section. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an air filter and device to solve the problems of single-layer filters having only one filter layer, poor dust prevention effect, and weak wind pressure resistance; and the large space occupied, complex structural design, and poor performance of cumulative filter groups.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An air filter comprising:

[0007] outer frame;

[0008] The filter media has at least two layers. The first layer of filter media is a bent structure filter media, which is set in an outer frame. The filter surface of the bent structure filter media is a bent surface that is bent multiple times along the surface of the outer frame. The remaining layers of filter media are either bent structure filter media or flat filter media.

[0009] Preferably, the bent structure filter material includes bent filter cotton and a fixed structure. The fixed structure has a mesh covering or fixing adhesive lines on the surface of the bent filter cotton. The mesh covering is located on at least one side of the filter material and presents a bent structure fixed shape together with the bent filter cotton. At least one fixing adhesive line is provided and continuously adheres to the bent filter cotton fixed shape.

[0010] Preferably, the outer frame has a groove, and the filter media are all embedded in the groove of the outer frame. A sealing structure is also provided at the joint between the filter media and the inner side of the groove of the outer frame. The sealing structure is formed by filling with sealant or by covering the surface of the bent filter cotton with a mesh to squeeze the filter media tightly into the inner side of the groove of the outer frame.

[0011] An apparatus comprising the air filter described above.

[0012] Compared with the prior art, the present invention provides an air filter and device, which has the following characteristics:

[0013] Beneficial effects:

[0014] This utility model air filter incorporates at least two layers of filter media, with the first layer employing a bent structure to increase the filtration area, significantly enhancing dust prevention and wind pressure resistance. The rational filter media structure design achieves multi-layer filtration within a limited space, saving space and reducing equipment size. Eliminating the need for multiple filters simplifies the structural design, reduces production difficulty and cost, and improves product stability. The simple structure facilitates filter media replacement, shortens maintenance time, reduces maintenance costs, and greatly enhances performance and user experience. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an air filter and device provided in an embodiment of this application.

[0016] Figure 2 This application provides an air filter and device. Figure 1 Enlarged view of the structure at point A.

[0017] Figure 3 This is a schematic diagram of the bent filter material in an air filter and device provided in this application embodiment.

[0018] Figure 4 This is a schematic diagram of the structure of a single fabric layer in an air filter and device provided in an embodiment of this application.

[0019] Figure 5 This is a schematic diagram of the outer frame of an air filter and device provided in an embodiment of this application.

[0020] In the diagram: 100, outer frame; 200, bent filter media; 210, bent filter cotton; 220, solid structure; 300, single layer of fabric. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides a technical solution, please refer to [link / reference]. Figures 1-5 An air filter comprising:

[0023] Outer frame 100;

[0024] The filter media consists of at least two layers. The first layer is a bent structure filter media 200, which is installed in the outer frame 100. The filter surface of the bent structure filter media 200 is a bent surface that is bent multiple times along the surface of the outer frame 100. The remaining layers of filter media are either bent structure filter media 200 or flat filter media.

[0025] The bent structure filter media 200 includes bent filter cotton 210 and a solid structure 220. The bent filter cotton 210 is also called filter cloth, etc. The purpose of the solid structure 220 is to fix the bent structure filter media 200 into shape to prevent deformation or micro-deformation. Once deformed, it will cause poor sealing. Micro-deformation means that the pores of the filter cotton become larger under airflow pressure, resulting in a reduction in sealing effect. The solid structure 220 has a mesh or fixing adhesive lines on the surface of the bent filter cotton 210. The mesh is set on at least one side of the filter media and presents the bent structure solid shape with the bent filter cotton 210. The fixing adhesive lines are set at least once and continuously adhere to the bent filter cotton 210 solid shape.

[0026] The outer frame 100 has a groove, and the filter media are all embedded in the groove of the outer frame 100. A sealing structure is also provided at the joint between the filter media and the inner side of the groove of the outer frame 100. The sealing structure is formed by filling with sealant or by covering the surface of the bent filter cotton 210 with a mesh to squeeze the filter media tightly to the inner side of the groove of the outer frame 100.

[0027] An apparatus comprising the air filter described above.

[0028] The fixing adhesive line is used to make the bent filter cotton 210 into a bent structure and adhere it to the outer frame 100. The outer frame 100 is provided with a single layer 300. The area of ​​the single layer 300 is larger than the area of ​​the inner frame of the outer frame 100, and the edge of the single layer 300 is embedded in the outer frame 100.

[0029] Within this utility model, the filter provided in this application embodiment includes an outer frame 100 and a bent structure filter material 200. The bent structure filter material 200 is disposed in the outer frame 100, and the bent structure filter material 200 includes at least one layer. The filter surface of the bent structure filter material 200 is a bent surface that is bent multiple times along the surface of the outer frame 100.

[0030] By utilizing the technical solution of the above embodiments, the filter surface of the bent structure filter media 200 is designed as a bent surface that is bent multiple times along the surface of the outer frame 100, which can accommodate more pollutants and extend the service life by 2-3 times compared to a flat structure. The filter has good filtration effect, occupies little space, facilitates the replacement of filter media 210, and has strong wind pressure resistance.

[0031] Reference Figure 2 As shown, in some specific embodiments, each layer of bent filter material 200 includes bent filter cotton 210 and a fixed structure 220 disposed on opposite sides of the bent filter cotton 210. The fixed structure 220 causes the bent filter cotton 210 to present a bent structure through bending. The fixed structure 220 is fixed to the inner side of the outer frame 100. The bent filter cotton 210 can be made of synthetic fiber filter material, glass fiber or activated carbon filter material, electrostatic electret filter material, polypropylene (PP) meltblown cloth, polyester fiber nonwoven fabric or HEPA filter paper, etc. The fixed structure 220 causes the bent filter cotton 210 to present a stable bent structure through bending, which can maintain the bent shape of the bent filter cotton 210 and disperse the stress generated by the airflow impact, preventing the bent filter cotton 210 from deforming due to long-term stress.

[0032] In some specific embodiments, each layer of bent filter material 200 includes bent filter cotton 210 and fixing adhesive lines disposed at opposite ends of the bent filter cotton 210. The fixing adhesive lines are used to form a bent structure for the bent filter cotton 210 and adhere it to the outer frame 100. The fixing adhesive lines refer to the use of adhesive to seal and fix the bent filter cotton 210 along a predetermined route. After the adhesive dries, it forms fixing adhesive lines, thereby fixing the bent filter cotton 210 into a bent structure through the fixing adhesive lines at both ends. The fixing adhesive lines firmly adhere both ends of the bent filter cotton 210 to the outer frame 100, preventing the bent filter cotton 210 from shifting or falling off under the action of airflow.

[0033] In some specific embodiments, the filter further includes a single fabric layer 300 disposed within the outer frame 100. The single fabric layer 300 may be made of a filter material such as non-woven fabric. The area of ​​the single fabric layer 300 is larger than the area of ​​the inner frame of the outer frame 100, so that the edges of the single fabric layer 300 are embedded within the outer frame 100. The single fabric layer 300 is filled by compression, thereby tightly adhering the single fabric layer 300 to the frame to prevent dust from entering through the gaps in the frame.

[0034] Reference Figure 3As shown, multi-level filtration can be achieved by stacking the bent filter media 200.

[0035] Reference Figure 4 , Figure 5 As shown, multi-level filtration can be achieved by stacking the bent structure filter material 200 with the single cloth layer 300.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] In this document, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. An air filter, characterized in that, include: outer frame; The filter media has at least two layers. The first layer of filter media is a bent structure filter media, which is set in an outer frame. The filter surface of the bent structure filter media is a bent surface that is bent multiple times along the surface of the outer frame. The remaining layers of filter media are either bent structure filter media or flat filter media.

2. An air filter according to claim 1, characterized in that: The bent structure filter material includes bent filter cotton and a fixed structure. The fixed structure is a surface mesh or fixing adhesive line of the bent filter cotton. The surface mesh is set on at least one side of the filter material and presents a bent structure fixed shape with the bent filter cotton. At least one fixing adhesive line is set and continuously adheres to the bent filter cotton fixed shape.

3. An air filter according to claim 1, characterized in that: The outer frame has grooves, and the filter media are all embedded in the grooves. A sealing structure is also provided at the joint between the filter media and the inner side of the groove.

4. An apparatus, characterized in that, Includes the air filter as described in any one of claims 1-3.

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