Air conditioner filter

The air conditioning filter with a multi-layer filtration structure solves the problem of low cleaning efficiency of ordinary air conditioning filters, and achieves multi-layer filtration and purification of air, ensuring a safe and clean environment inside the vehicle.

CN223931087UActive Publication Date: 2026-02-24QINGHE COUNTY YUANYOU AUTO PARTS CO LTD
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Patent Information

Application Number
CN202520389708.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-02-24
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

Ordinary air conditioning filters use a single layer of white environmentally friendly filter material, resulting in low cleaning efficiency, especially in complex air environments where the filtration effect is poor.

Method used

It adopts a multi-layer filtration structure, including a pre-filtration layer, a high-efficiency filtration layer, a negative oxygen ion filtration layer, a biological functional layer, and a cold catalyst layer, which are used to intercept coarse dust particles, suspended particles, adsorb and degrade harmful gases, and decompose harmful gases and odors, respectively, thereby enhancing the filtration effect.

Benefits of technology

It achieves multi-layer air filtration, effectively intercepting bacteria, viruses and harmful gases, ensuring a safe and clean environment inside the vehicle.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223931087U_ABST
    Figure CN223931087U_ABST
Patent Text Reader

Abstract

The utility model discloses an air conditioner filter, and belongs to the field of automobile accessories. The filter comprises a shell, a clamping groove formed in the shell and a filtering mechanism inserted into the clamping groove, and the filtering mechanism comprises a pre-filtering layer, an efficient filtering layer, a negative oxygen ion filtering layer, a biological function layer and a cold catalyst layer. The pre-filtering layer, the efficient filtering layer, the negative oxygen ion filtering layer, the biological functional layer and the cold catalyst layer are sequentially stacked in the clamping groove from top to bottom. The pre-filtering layer filters and intercepts coarse dust particles such as flying dust and pollen, the efficient filtering layer filters and intercepts suspensible particles, the negative oxygen ion filtering layer adsorbs and degrades harmful gases such as formaldehyde, and the biological function layer filters and intercepts pathogens such as bacteria and viruses and allergens. The cold catalyst layer decomposes harmful gas and peculiar smell in the air in the automobile, so that the air is filtered in a layered mode from multiple angles, and the environment in the automobile is safe and clean.
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Description

Technical Field

[0001] This application relates to the field of automotive parts technology, specifically an air conditioning filter. Background Technology

[0002] Air conditioning filters, also known as pollen filters, are used in automobiles to filter the air entering the vehicle from the outside, improving air cleanliness. The filters typically remove impurities such as fine particles, pollen, bacteria, industrial waste gases, and dust. The purpose of an air conditioning filter is to prevent these substances from entering the air conditioning system and damaging it, providing a good air environment for passengers and protecting their health. It also helps prevent windshield fogging.

[0003] Ordinary air conditioning filters are generally made of a specific environmentally friendly filter material that has been processed and folded. They are mostly white and single-layered, with low cleaning efficiency, especially for filtering complex air environments, where they are less effective.

[0004] Therefore, this application provides an air conditioning filter to solve the above-mentioned problems. Utility Model Content

[0005] This application provides an air conditioning filter, which aims to solve the problems mentioned in the background art, such as that ordinary air conditioning filters are generally made of a specific environmentally friendly filter material after processing and folding, mostly white single layer, with low cleaning efficiency, especially for filtering complex air environments, the effect is poor.

[0006] To achieve the above objectives, this application provides the following technical solution: an air conditioning filter, comprising a housing, a groove formed within the housing, and a filter mechanism inserted into the groove.

[0007] The filtration mechanism includes a pre-filter layer fixedly inserted into the slot and adapted to the outer shell, a high-efficiency filter layer inserted into the slot and adapted to the outer shell and located behind the pre-filter layer, a negative oxygen ion filter layer inserted into the slot and adapted to the outer shell and located behind the high-efficiency filter layer, a bio-functional layer inserted into the slot and adapted to the outer shell and located behind the negative oxygen ion filter layer, and a cold catalyst layer inserted into the slot and adapted to the outer shell and located behind the bio-functional layer. The pre-filter layer, high-efficiency filter layer, negative oxygen ion filter layer, bio-functional layer and cold catalyst layer are stacked sequentially from top to bottom in the slot. In this way, during use, the pre-filter layer, high-efficiency filter layer, negative ion filter layer, bio-functional layer, and cold catalyst layer are sequentially installed in the slots of the outer shell. The pre-filter layer filters and intercepts coarse dust particles such as dust and pollen, the high-efficiency filter layer filters and intercepts suspended particulate matter, the negative ion filter layer adsorbs and degrades harmful gases such as formaldehyde, the bio-functional layer filters and intercepts pathogens such as bacteria and viruses as well as allergens, and the cold catalyst layer decomposes harmful gases and odors in the air inside the vehicle. Thus, the air is filtered from multiple angles and layers to ensure a safe and clean environment inside the vehicle.

[0008] Preferably, to increase the contact area, the pre-filter layer is made of ordinary non-woven fabric material and arranged in a continuous wavy pattern, thereby improving the interception efficiency.

[0009] Preferably, for adsorbing formaldehyde, the negative ion filter layer comprises a negative ion base layer and a negative ion coating layer, wherein the negative ion coating layer is uniformly coated on the surface of the negative ion base layer. This adsorbs and degrades harmful gases such as formaldehyde.

[0010] Preferably, for antibacterial purposes, the biofunctional layer includes a filter base layer and an antibacterial agent fusion material, wherein the antibacterial agent fusion material is immersed in the filter base layer. This filters and intercepts pathogens such as bacteria and viruses, as well as allergens.

[0011] Preferably, to purify odors, the cold catalyst layer includes a catalyst carrier and an active ingredient material, which are mixed and bonded together. This decomposes harmful gases and odors in the vehicle's interior air.

[0012] Preferably, to improve strength, the filtration mechanism further includes a reinforcing plate inserted into the clamping groove behind the cold catalyst layer, the reinforcing plate having a plurality of evenly distributed air vents. This improves the service life of the device.

[0013] Preferably, for sealing purposes, a plurality of evenly distributed partition strips are fixedly installed inside the groove, and sealing strips adapted to the groove and partition strips are fixedly installed on the outer walls of the pre-filtration layer, high-efficiency filtration layer, negative oxygen ion filtration layer, biofunctional layer, cold catalyst layer, and reinforcing plate. Stable and reliable.

[0014] This filter sequentially installs a pre-filter layer, a high-efficiency filter layer, a negative ion filter layer, a biological functional layer, and a cold catalyst layer within the housing's recesses. The pre-filter layer filters and intercepts coarse dust particles such as dust and pollen; the high-efficiency filter layer filters and intercepts suspended particulate matter; the negative ion filter layer adsorbs and degrades harmful gases such as formaldehyde; the biological functional layer filters and intercepts pathogens such as bacteria and viruses, as well as allergens; and the cold catalyst layer decomposes harmful gases and odors in the vehicle's interior air. Thus, it filters the air from multiple angles and layers to ensure a safe and clean environment inside the vehicle.

[0015] The filter has a stainless steel reinforcing plate installed in the groove inside the housing to enhance the strength and support of the entire housing frame. Gas flows through the vent holes, improving the service life of the device. Attached Figure Description

[0016] Figure 1 A schematic diagram of the front structure of an air conditioning filter;

[0017] Figure 2 A schematic diagram of the back structure of an air conditioner filter;

[0018] Figure 3 This is a schematic cross-sectional view of an air conditioning filter.

[0019] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0020] In the picture:

[0021] 1. Outer shell; 11. Gap; 12. Separator strip; 13. Sealing strip; 2. Filter mechanism; 21. Pre-filter layer; 22. High-efficiency filter layer; 23. Negative oxygen ion filter layer; 231. Negative oxygen ion base layer; 232. Negative oxygen ion coating; 24. Biofunctional layer; 241. Filter element base layer; 242. Antibacterial agent fusion material; 25. Cold catalyst layer; 251. Catalyst carrier; 252. Active ingredient material; 26. Reinforcing plate; 27. Ventilation holes. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Example 1

[0024] This embodiment provides an air conditioning filter, such as... Figure 1-4As shown, the filter includes a housing 1, a groove 11 formed inside the housing 1, and a filter mechanism 2 inserted into the groove 11.

[0025] The filtration mechanism 2 includes a pre-filter layer 21 fixedly inserted into the clamping groove 11 and adapted to the outer shell 1, a high-efficiency filter layer 22 inserted into the clamping groove 11 and adapted to the outer shell 1 and located behind the pre-filter layer 21, a negative oxygen ion filter layer 23 inserted into the clamping groove 11 and adapted to the outer shell 1 and located behind the high-efficiency filter layer 22, a bio-functional layer 24 inserted into the clamping groove 11 and adapted to the outer shell 1 and located behind the negative oxygen ion filter layer 23, and a cold catalyst layer 25 inserted into the clamping groove 11 and adapted to the outer shell 1 and located behind the bio-functional layer 24. The pre-filter layer 21, high-efficiency filter layer 22, negative oxygen ion filter layer 23, bio-functional layer 24 and cold catalyst layer 25 are stacked sequentially from top to bottom in the clamping groove 11.

[0026] In use, the pre-filter layer 21, high-efficiency filter layer 22, negative ion filter layer 23, bio-functional layer 24, and cold catalyst layer 25 are sequentially installed in the slot 11 of the outer shell 1. The pre-filter layer 21 filters and intercepts coarse dust particles such as dust and pollen, the high-efficiency filter layer 22 filters and intercepts suspended particulate matter, the negative ion filter layer 23 adsorbs and degrades harmful gases such as formaldehyde, the bio-functional layer 24 filters and intercepts pathogens such as bacteria and viruses as well as allergens, and the cold catalyst layer 25 decomposes harmful gases and odors in the air inside the vehicle. Thus, the air is filtered from multiple angles and layers to ensure a safe and clean environment inside the vehicle.

[0027] Specifically, the pre-filter layer 21 is made of ordinary non-woven fabric and arranged in a continuous wavy pattern. In use, the ordinary non-woven fabric is folded continuously and then inserted into the slot 11. The folded ordinary non-woven fabric can increase the overall contact area between the pre-filter layer 21 and the air within a limited space, thereby improving the interception efficiency.

[0028] More specifically, the negative ion filter layer 23 comprises a negative ion base layer 231 and a negative ion coating 232, with the negative ion coating 232 uniformly coated on the surface of the negative ion base layer 231. In use, a dense, porous negative ion base layer 231 is fabricated, and then a layer of negative ion coating 232 is fully coated on the surface of the negative ion base layer 231 to form the negative ion filter layer 23. This is then installed in the slot 11 to adsorb and degrade harmful gases such as formaldehyde.

[0029] It should be noted that the materials used to make the negative oxygen ion base layer 231 include, but are not limited to, diatomaceous earth and modified calcium sulfate dihydrate crystals, and the negative oxygen ion coating 232 includes, but is not limited to, nano titanium dioxide.

[0030] Furthermore, the biofunctional layer 24 includes a filter base layer 241 and an antibacterial agent fusion material 242, with the antibacterial agent fusion material 242 immersed in the filter base layer 241. In use, the filter base layer 241 is made of sterile non-woven fabric, and then the sterile non-woven fabric is immersed in the antibacterial agent fusion material 242 to form the biofunctional layer 24, which is then installed in the clamping groove 11 to filter and intercept pathogens such as bacteria and viruses, as well as allergens.

[0031] It should be noted that the antibacterial agent fusion material 242 includes, but is not limited to, silver ions, copper ions, and natural plant extracts such as tea polyphenols.

[0032] Furthermore, the cold catalyst layer 25 includes a catalyst carrier 251 and an active ingredient material 252, which are mixed and bonded together. In use, the catalyst material and the active ingredient are mixed and agglomerated using an adhesive to form a plate-like substrate, which is then installed in the clamping groove 11 to decompose harmful gases and odors in the vehicle's interior air.

[0033] It should be noted that the catalyst support 251 includes, but is not limited to, activated carbon, ceramics, and molecular sieves, and the active ingredient material 252 includes, but is not limited to, titanium dioxide and manganese oxides.

[0034] Example 2

[0035] Unlike Embodiment 1, where the filter layers are primarily made of flexible or brittle materials with low strength, the filter mechanism 2 also includes a reinforcing plate 26 inserted into the slot 11 behind the cold catalyst layer 25. The reinforcing plate 26 has several evenly distributed vent holes 27. In use, the reinforcing plate 26, made of stainless steel, is installed in the slot 11 within the outer casing 1 to enhance the strength and support of the entire frame of the outer casing 1. Gas flows through the vent holes 27, improving the lifespan of the device.

[0036] Furthermore, several evenly distributed partition strips 12 are fixedly installed inside the clamping groove 11, and sealing strips 13 adapted to the clamping groove 11 and partition strips 12 are fixedly installed on the outer walls of the pre-filter layer 21, high-efficiency filter layer 22, negative oxygen ion filter layer 23, biological functional layer 24, cold catalyst layer 25, and reinforcing plate 26.

[0037] In use, the separator 12 divides the clamping groove 11 into several grooves of the same width. The sealing strip 13 is fitted onto the pre-filter layer 21, the high-efficiency filter layer 22, the negative oxygen ion filter layer 23, the biological functional layer 24, the cold catalyst layer 25, and the reinforcing plate 26, and then inserted into the groove to clamp the pre-filter layer 21, the high-efficiency filter layer 22, the negative oxygen ion filter layer 23, the biological functional layer 24, the cold catalyst layer 25, and the reinforcing plate 26, ensuring stability and reliability.

[0038] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. An air conditioning filter, comprising a housing (1), a groove (11) formed within the housing (1), and a filter mechanism (2) inserted into the groove (11), characterized in that: The filtration mechanism (2) includes a pre-filter layer (21) fixedly inserted into the groove (11) and adapted to the outer shell (1), a high-efficiency filter layer (22) inserted into the groove (11) and adapted to the outer shell (1) and located behind the pre-filter layer (21), a negative oxygen ion filter layer (23) inserted into the groove (11) and adapted to the outer shell (1) and located behind the high-efficiency filter layer (22), and a filter layer (24) inserted into the groove (11) and adapted to the outer shell (1) and located behind the high-efficiency filter layer (22). The pre-filter layer (21), high-efficiency filter layer (22), negative oxygen ion filter layer (23), bio-functional layer (24) adapted to the shell (1) and located behind the negative oxygen ion filter layer (23), and the cold catalyst layer (25) inserted into the groove (11) adapted to the shell (1) and located behind the bio-functional layer (24) are arranged in the groove (11) from top to bottom.

2. An air conditioning filter according to claim 1, characterized in that: The pre-filter layer (21) is made of ordinary non-woven fabric and is arranged in a continuous wave pattern.

3. An air conditioning filter according to claim 1, characterized in that: The negative oxygen ion filter layer (23) consists of a negative oxygen ion base layer (231) and a negative oxygen ion coating layer (232), wherein the negative oxygen ion coating layer (232) is uniformly coated on the surface of the negative oxygen ion base layer (231).

4. An air conditioning filter according to claim 1, characterized in that: The biofunctional layer (24) includes a filter base layer (241) and an antibacterial agent fusion material (242), wherein the antibacterial agent fusion material (242) is immersed in the filter base layer (241).

5. An air conditioning filter according to claim 1, characterized in that: The cold catalyst layer (25) includes a catalyst carrier (251) and an active ingredient material (252), which are mixed and bonded together.

6. An air conditioning filter according to claim 1, characterized in that: The filter mechanism (2) also includes a reinforcing plate (26) inserted into the clamping groove (11) and located behind the cold catalyst layer (25). The reinforcing plate (26) has a number of evenly distributed air holes (27).

7. An air conditioning filter according to claim 6, characterized in that: The groove (11) is fixedly installed with several evenly arranged partition strips (12). The pre-filter layer (21), high-efficiency filter layer (22), negative oxygen ion filter layer (23), biological function layer (24), cold catalyst layer (25) and reinforcing plate (26) are all fixedly installed with sealing strips (13) that are compatible with the groove (11) and partition strips (12).