Activated carbon composite filter material for automobile air conditioner filter

Abstract

The invention discloses an activated carbon composite filter material for an automobile air conditioner filter, which belongs to the technical field of automobile air conditioner filters and is provided with a composite filter material pre-filtering layer and an edge sealing strip adhered to the outer surface of the composite filter material pre-filtering layer. Comprising a filter frame which is connected to the outer surface of the edge sealing strip in an attached mode, a protective layer is connected to the lower surface of a composite filter material pre-filtering layer in an attached mode, an adsorption layer is connected to the lower surface of the protective layer in an attached mode, and meanwhile a fine filtering layer is connected to the lower surface of the adsorption layer in an attached mode. According to the activated carbon composite filter material for the automobile air conditioner filter, the composite filter material pre-filtering layer is arranged, so that the protective layer, the adsorption layer, the fine filtering layer and the supporting layer can be adhered in sequence from top to bottom, and different filter materials or supporting materials are added into different layers, so that the supporting and filtering stability of the activated carbon composite filter material for the automobile air conditioner filter is improved; and the replacing and locking effects of the activated carbon composite filter material can be improved through the filter frame.

Description

Technical Field

[0001] This invention relates to the field of automotive air conditioning filter technology, specifically to an activated carbon composite filter material for automotive air conditioning filters. Background Technology

[0002] In recent years, with the rapid development of the automotive economy, the production and use of automobiles have increased dramatically, and the pollution caused by automobile exhaust has become increasingly serious. The harm of automobile exhaust pollution to the environment and human health is quite severe. The main pollutants emitted by automobiles include hydrocarbons (toluene, butane), nitrogen oxides, and sulfur dioxide (SO₂). 2） Air conditioning filters are used to filter incoming air, including particulate matter (PM), when the car is in external circulation, heating, or cooling mode. However, during use, the filtration efficiency can be low, allowing fine dust to enter the cabin and affect breathing safety.

[0003] To overcome the above-mentioned defects, the existing technology (Chinese patent application with application number CN202023348650.5, application date 2020-12-31) air conditioning filter and its filter element can avoid drilling holes in the pleats of the filter material body, and can increase the filtration area of ​​the filter material body without damaging the structure of the filter material body, thereby improving the filtration performance of the product. Furthermore, only the first and second notches need to be machined on the front end plate, without drilling holes in the filter media body, making manufacturing more convenient and improving production efficiency. Installation is also easier. Existing technology (Chinese patent application CN201320207370.3, filed April 23, 2013) describes a car air conditioning filter element. By adding three polypropylene pleated rubber support plates around the filter media, the filter element structure becomes stable, robust, and durable, solving the problem of easy deformation. When the air intake is large, deformation is reduced, preventing damage and thus extending the filter's service life. Because the filter media uses high-grade non-woven filter fabric with good air permeability, and the spacing between the tops of two adjacent corrugations or folds is 21-23mm, the filtration effect is effectively improved, and the environment inside the driver's cabin is improved. Furthermore, because the support plate I is designed to be 10mm-30mm longer than the side strip... The original long strip structure of the filter element has been changed, making the filter element easier to install and use. Furthermore, existing technology (Chinese patent application CN201721692178.2, filed on 2017-12-07) describes a filter material for automotive air conditioning filters. By setting a water-repellent reinforced coarse filter layer, and utilizing the water-repellent, high-strength, and porous characteristics of non-woven fabric, it achieves the blocking of moisture in the air, protection of the secondary filter layer, and interception of large particles, improving the structural stability of the automotive air conditioning filter and effectively ensuring its normal function. While existing technology can complete the filtration work, it is prone to damage during maximum airflow operation, resulting in a decrease in filtration efficiency. Moreover, replacement typically requires replacing the entire air conditioning filter, easily leading to material waste. Additionally, the relatively flexible edges can easily leave gaps between the filter and the air intake mechanism, making it difficult to control the air filtration effect.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing activated carbon composite filter materials used in automotive air conditioning filters. Summary of the Invention

[0005] The purpose of this invention is to provide an activated carbon composite filter material for automotive air conditioning filters, in order to solve the problems mentioned in the background art, such as easy damage during maximum airflow operation, resulting in reduced filtration efficiency, the need to replace the entire air conditioning filter during replacement which easily leads to waste of materials, and the tendency for the relatively flexible edges to leave gaps with the air intake mechanism, making it difficult to control the air filtration effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an activated carbon composite filter material for an automotive air conditioning filter, comprising a composite filter material pre-filtration layer and a sealing strip adhered to the outer surface of the composite filter material pre-filtration layer; comprising: a filter frame, which is attached to the outer surface of the sealing strip, wherein a protective layer is attached to the lower surface of the composite filter material pre-filtration layer, and an adsorption layer is attached to the lower surface of the protective layer; a fine filter layer is attached to the lower surface of the adsorption layer, and a support layer is attached to the lower surface of the fine filter layer; and a clamping rod is connected to the inner surface of the filter frame by a pressing and rotating mechanism.

[0007] Preferably, the inner surface of the composite filter material pre-filtration layer is nested with reinforcing wire one, and the outer surface of the reinforcing wire one is cross-connected with reinforcing wire two, and the composite filter material pre-filtration layer, the protective layer and the adsorption layer form a continuous composite adhesive structure.

[0008] Preferably, the composite filter material pre-filtration layer forms an embedded structure with the first reinforcing wire and the second reinforcing wire, and the first reinforcing wire and the second reinforcing wire are arranged in a staggered manner. The outer surface of the first reinforcing wire and the second reinforcing wire is curved. The first reinforcing wire and the second reinforcing wire are made of polybutylene terephthalate.

[0009] Preferably, the inner surface of the adsorption layer is fused with spacers, and the spaces between the spacers are filled with activated carbon material. The outer surface of the activated carbon material is chemically coated with a modifier coating layer, and the inner surface of the modifier coating layer is provided with adsorption pores.

[0010] Preferably, the adsorption layer and the spacer strip form a welded structure, the spacer strip and the activated carbon material form an embedded structure, and the activated carbon material and the modifier covering layer form a covering structure, while the adsorption pores are uniformly opened on the outer surface of the modifier covering layer.

[0011] Preferably, the adsorption layer, the fine filtration layer, and the support layer form an adhesive composite structure, and the inner surface of the support layer is filled with a support mesh, and the outer surface of the support mesh has a diamond-shaped grid structure. The support mesh is made of polypropylene modified fiber filaments.

[0012] Preferably, a support frame is installed on the lower surface of the filter frame, and a support layer is attached to the upper surface of the support frame, and an edge sealing strip is attached to the outer surface of the support layer.

[0013] Preferably, the filter frame and the support frame are integrated into a single structure, and the outer surface of the support frame has a square grid structure, and the support layer and the sealing strip form an adhesive structure.

[0014] Preferably, the extrusion and rotation mechanism further includes a threaded rod rotatably connected to the inner surface of the filter frame, and a movable frame is threadedly connected to the outer surface of the threaded rod, limiting and sliding the movable frame on the inner surface of the filter frame. A pull rod is rotatably connected to the outer surface of the movable frame, and a lug is rotatably connected to the outer surface of the pull rod. A clamping rod is installed on the outer surface of the lug, positioning and rotating the clamping rod in an internal groove opened in the filter frame. A clamping block is installed on the outer surface of the clamping rod, and an edge sealing strip is clamped and connected to the outer surface of the clamping block.

[0015] Preferably, the filter frame forms a threaded sliding structure with the movable frame via a threaded rod, and the movable frame forms a linkage rotation structure with the clamping rod via a pull rod and a hanging lug. The clamping rod forms a nested rotation structure with the filter frame via an internal groove. At the same time, the clamping rod and the clamping block form an integrated structure, and the filter frame forms a clamping and limiting structure with the clamping block and the edge sealing strip.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. The activated carbon composite filter material for automotive air conditioning filters is provided with a pre-filtration layer, which facilitates the sequential adhesion of a protective layer, an adsorption layer, a fine filtration layer, and a support layer from top to bottom. Different filter materials or support materials are added to different layers to improve the stability of the activated carbon composite filter material support and filtration in automotive air conditioning filters. Furthermore, the filter frame can improve the replacement and locking effect of the activated carbon composite filter material.

[0017] 2. This activated carbon composite filter material for automotive air conditioning filters features a sealing strip to facilitate the adhesion of the protective layer, adsorption layer, fine filtration layer, and support layer to the pre-filtration layer of the composite filter material. The side adhesion provides stability, and the built-in reinforcing wires one and two enhance the support stability of the pre-filtration layer, ensuring stable filtration of large particulate impurities and preventing concavity from affecting the filtration effect. Furthermore, the activated carbon material and modifier covering layer within the adsorption layer effectively adsorb impurities, improving the adsorption effect. The modifier covering layer is manufactured with... The activated carbon material undergoes secondary activation and surface modification, allowing a special modifier coating layer to be adsorbed onto the surface and deposited within the adsorption pores. This improves the adsorption efficiency and capacity of the activated carbon material for nitrogen oxides and sulfur dioxide. Furthermore, the spacers built into the adsorption layer allow for zoned placement of the filled activated carbon material, preventing its accumulation. Additionally, the combined filtration of the fine filtration layer and support layer enhances the filtration effect, while the built-in support mesh in the support layer improves the overall stability of the activated carbon composite filter material.

[0018] 3. The activated carbon composite filter material for automotive air conditioning filters is equipped with a compression and rotation mechanism. Through the cooperation of the movable frame assembled with the filter frame and the clamping block installed on the clamping rod, the stability of the filter frame assembly with the sealing strip is improved, the generation of voids is reduced, the connection stability between the activated carbon composite filter material and the automotive air conditioning assembly is increased, and leakage gaps are prevented, thus preventing impurities from entering the vehicle. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the pre-filtration layer of the composite filter material of the present invention; Figure 2 This is a half-sectional three-dimensional structural diagram of the pre-filtration layer of the composite filter material of the present invention; Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the pre-filtration layer of the composite filter material of the present invention; Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the adsorption layer of the present invention; Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the support layer of the present invention; Figure 6 This is a partial cross-sectional perspective view of the three-dimensional structure of the filter frame of the present invention; Figure 7 This is a partial cross-sectional three-dimensional structural schematic diagram of the mobile frame of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the clamping rod of the present invention.

[0020] In the diagram: 1. Composite filter media pre-filtration layer; 2. Sealing strip; 3. Filter frame; 4. Support frame; 5. Reinforcing wire one; 6. Reinforcing wire two; 7. Protective layer; 8. Adsorption layer; 9. Spacer strip; 10. Activated carbon material; 11. Modifier covering layer; 12. Adsorption pores; 13. Fine filtration layer; 14. Support layer; 15. Support mesh; 16. Threaded rod; 17. Movable frame; 18. Pull rod; 19. Hanging lug; 20. Clamping rod; 21. Internal groove; 22. Clamping block. Detailed Implementation

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

[0022] Please see Figures 1-8 The present invention provides a technical solution: an activated carbon composite filter material for automotive air conditioning filters, comprising a composite filter material pre-filtration layer 1 and a sealing strip 2 adhered to the outer surface of the composite filter material pre-filtration layer 1.

[0023] Example 1: As Figures 1-8 The present invention provides the following technical solution: an activated carbon composite filter material for an automotive air conditioning filter, comprising: a filter frame 3, which is attached to the outer surface of a sealing strip 2, and a protective layer 7 is attached to the lower surface of the pre-filter layer 1 of the composite filter material, and an adsorption layer 8 is attached to the lower surface of the protective layer 7, while a fine filter layer 13 is attached to the lower surface of the adsorption layer 8, and a support layer 14 is attached to the lower surface of the fine filter layer 13, and a clamping rod 20 is connected to the inner surface of the filter frame 3 by a pressing and rotating mechanism.

[0024] In use, the sealing strip 2, assembled with the composite filter material pre-filter layer 1, is effectively nested and assembled on the outer surface of the filter frame 3. The filter frame 3 provides positioning support for the composite filter material pre-filter layer 1, improving the assembly stability of the composite filter material pre-filter layer 1 and preventing gaps. The protective layer 7 and adsorption layer 8 attached to the composite filter material pre-filter layer 1 work together to improve adsorption stability and prevent concavity from affecting the filtration effect. The adsorption effect is also increased by the adsorption layer 8. The fine filter layer 13 and support layer 14 bonded to the lower side of the adsorption layer 8 further improve the filtration effect of the activated carbon composite filter material of the automotive air conditioning filter.

[0025] Example 2: Figures 1-5 The technical solution shown, based on Embodiment 1, further discloses the filtration effect of the filter media, increases filtration stability, and enhances the support stability of the filter media to prevent indentation from affecting filtration stability. It solves the problem of easy damage and reduced filtration efficiency during operation at maximum airflow. Specifically, the inner surface of the composite filter media pre-filtration layer 1 is nested with reinforcing wires 5, and the outer surface of the reinforcing wires 5 is cross-connected with reinforcing wires 6. Furthermore, the composite filter media pre-filtration layer 1, the protective layer 7, and the adsorption layer 8 form a continuous composite adhesive structure. Figure 3 and Figure 5 As shown, the composite filter material pre-filtration layer 1, reinforcing wire 5, and reinforcing wire 6 form an embedded structure, with reinforcing wire 5 and reinforcing wire 6 arranged in a staggered manner. The outer surfaces of reinforcing wire 5 and reinforcing wire 6 are curved, and both reinforcing wire 5 and reinforcing wire 6 are made of polybutylene terephthalate. Figure 3 and Figure 4 As shown, the inner surface of the adsorption layer 8 is fused with spacer strips 9, and the spaces in the spacer strips 9 are filled with activated carbon material 10. The outer surface of the activated carbon material 10 is chemically coated with a modifier coating layer 11, and the inner surface of the modifier coating layer 11 has adsorption pores 12. Figure 3 and Figure 4As shown, the adsorption layer 8 and the spacer strip 9 form a welded structure, and the spacer strip 9 and the activated carbon material 10 form an embedded structure. The activated carbon material 10 and the modifier covering layer 11 form a covering structure, and the adsorption pores 12 are uniformly opened on the outer surface of the modifier covering layer 11. Figure 3 and Figure 5 As shown, the adsorption layer 8, the fine filter layer 13, and the support layer 14 form a bonded composite structure. The inner surface of the support layer 14 is filled with a support mesh 15, and the outer surface of the support mesh 15 has a diamond-shaped mesh structure. The support mesh 15 is made of polypropylene modified fiber filaments.

[0026] In use, the upper and lower adsorption layers 8 are fused together into strip-shaped gaps by curved spacers 9, and activated carbon material 10 is filled into these gaps. The activated carbon material 10 is covered by a modifier covering layer 11, which, together with the adsorption pores 12 of the activated carbon material 10, improves the adsorption effect. This, combined with the filled adsorption layer 8, effectively controls the adhesion between the adsorption layer 8 and the protective layer 7. Furthermore, the composite filter material pre-filtration layer 1 is effectively adhered to the upper layer of the protective layer 7. During the adhesion process, the composite filter material pre-filtration layer 1… The reinforced wires 1 and 2 are interwoven and built-in to improve the support effect of the pre-filter layer 1 of the composite filter material when it initially contacts large particles of impurities, preventing the material from concave due to strong winds, thus improving the support and filtration effects. In addition, the fine filter layer 13 is attached to the lower side of the adsorption layer 8, and the support layer 14 is attached to the lower side of it. The support mesh 15 built into the support layer 14 further improves the support effect and prevents damage. The edge sealing strip 2 is bonded to the outside of the pre-filter layer 1 of the composite filter material to improve the working effect of the activated carbon composite filter material of different sizes of automotive air conditioning filters.

[0027] Example 3: Figure 6 , Figure 7 and Figure 8 The technical solution shown, based on Embodiment 2, further discloses the support stability of the overall filter material, preventing gaps that could cause dust leakage and avoid damage to the vehicle's interior environment. It solves the problems of general replacement requiring the replacement of the entire air conditioning filter, which easily leads to material waste, and the relatively flexible edges easily leaving gaps with the air intake mechanism, making it difficult to control the air filtration effect. Specifically, a support frame 4 is installed on the lower surface of the filter frame 3, and a support layer 14 is attached to the upper surface of the support frame 4, with a sealing strip 2 attached to the outer surface of the support layer 14; For example... Figure 6 , Figure 7 and Figure 8 As shown, the filter frame 3 and the support frame 4 form an integrated structure, and the outer surface of the support frame 4 has a square grid structure, and the support layer 14 and the sealing strip 2 form an adhesive structure; as shown Figure 6 , Figure 7 and Figure 8As shown, the pressure rotation mechanism also includes a threaded rod 16 rotatably connected to the inner surface of the filter frame 3, and a movable frame 17 threadedly connected to the outer surface of the threaded rod 16, limiting and sliding the movable frame 17 on the inner surface of the filter frame 3. A pull rod 18 is rotatably connected to the outer surface of the movable frame 17, and a hanging lug 19 is rotatably connected to the outer surface of the pull rod 18. A clamping rod 20 is installed on the outer surface of the hanging lug 19, positioning and rotating the clamping rod 20 in the built-in groove 21 of the filter frame 3. A clamping block 22 is installed on the outer surface of the clamping rod 20, and a sealing strip 2 is clamped and connected to the outer surface of the clamping block 22. Figure 6 , Figure 7 and Figure 8 As shown, the filter frame 3 forms a threaded sliding structure with the movable frame 17 via the threaded rod 16, and the movable frame 17 forms a linkage rotation structure with the clamping rod 20 via the pull rod 18 and the hanging lug 19. The clamping rod 20 forms a nested rotation structure with the filter frame 3 via the built-in groove 21. At the same time, the clamping rod 20 and the clamping block 22 form an integrated structure, and the filter frame 3 forms a clamping and limiting structure with the edge sealing strip 2 via the clamping block 22.

[0028] In use, the composite filter material is effectively nested in the filter frame 3 and supported by the support frame 4 installed in the filter frame 3. The edge frame of the support frame 4 fits the sealing strip 2, reducing gaps. The threaded rod 16 is rotated by rotation control, and the threaded adjustment moving frame 17 slides within the filter frame 3. This rotation drives the pull rod 18 to rotate and adjusts the clamping rod 20 installed on the hanging ear 19 to be positioned and rotated within the filter frame 3. The clamping rod 20 can be rotated and unfolded from the built-in groove 21 of the filter frame 3, and the clamping block 22 installed on the clamping rod 20 can be driven to effectively limit and compress the sealing strip 2, improving the stability of the filter material body, improving the stability of the assembly with the car air conditioner, preventing air leakage and dust entry, improving the cleanliness of the air inside the car, and increasing the filtration effect.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An activated carbon composite filter material for an automotive air conditioning filter, comprising a composite filter material pre-filter layer (1) and a sealing strip (2) adhered to the outer surface of the composite filter material pre-filter layer (1). Its features are, include: The filter frame (3) is attached to the outer surface of the sealing strip (2), and the lower surface of the composite filter material pre-filtration layer (1) is attached to a protective layer (7), and the lower surface of the protective layer (7) is attached to an adsorption layer (8). At the same time, the lower surface of the adsorption layer (8) is attached to a fine filter layer (13), and the lower surface of the fine filter layer (13) is attached to a support layer (14). The inner surface of the filter frame (3) is connected to a clamping rod (20) by a pressing and rotating mechanism.

2. The activated carbon composite filter material for automotive air conditioning filters according to claim 1, characterized in that: The inner surface of the composite filter material pre-filtration layer (1) is nested with reinforcing wire one (5), and the outer surface of the reinforcing wire one (5) is cross-connected with reinforcing wire two (6). The composite filter material pre-filtration layer (1), the protective layer (7), and the adsorption layer (8) form a continuous composite adhesive structure.

3. The activated carbon composite filter material for automotive air conditioning filters according to claim 2, characterized in that: The composite filter material pre-filtration layer (1) forms an embedded structure with the first reinforcing wire (5) and the second reinforcing wire (6), and the first reinforcing wire (5) and the second reinforcing wire (6) are arranged in a staggered manner. The outer surface of the first reinforcing wire (5) and the second reinforcing wire (6) is curved. The first reinforcing wire (5) and the second reinforcing wire (6) are made of polybutylene terephthalate.

4. The activated carbon composite filter material for automotive air conditioning filters according to claim 1, characterized in that: The inner surface of the adsorption layer (8) is fused with spacer strips (9), and the spaces of the spacer strips (9) are filled with activated carbon material (10). The outer surface of the activated carbon material (10) is chemically covered with a modifier coating layer (11), and the inner surface of the modifier coating layer (11) is provided with adsorption pores (12).

5. The activated carbon composite filter material for automotive air conditioning filters according to claim 4, characterized in that: The adsorption layer (8) and the spacer (9) form a welded structure, and the spacer (9) and the activated carbon material (10) form an embedded structure, and the activated carbon material (10) and the modifier covering layer (11) form a covering structure. Meanwhile, the adsorption pores (12) are uniformly opened on the outer surface of the modifier covering layer (11).

6. The activated carbon composite filter material for automotive air conditioning filters according to claim 1, characterized in that: The adsorption layer (8), the fine filter layer (13) and the support layer (14) form a bonded composite structure. The inner surface of the support layer (14) is filled with a support mesh (15), and the outer surface of the support mesh (15) is in the shape of a rhomboid mesh structure. The support mesh (15) is made of polypropylene modified fiber filament.

7. The activated carbon composite filter material for automotive air conditioning filters according to claim 1, characterized in that: The filter frame (3) has a support frame (4) installed on its lower surface, and a support layer (14) is attached to the upper surface of the support frame (4), and an edge sealing strip (2) is attached to the outer surface of the support layer (14).

8. The activated carbon composite filter material for automotive air conditioning filters according to claim 7, characterized in that: The filter frame (3) and the support frame (4) form an integrated structure, and the outer surface of the support frame (4) is a square grid structure, and the support layer (14) and the sealing strip (2) form an adhesive structure.

9. The activated carbon composite filter material for automotive air conditioning filters according to claim 1, characterized in that: The extrusion and rotation mechanism also includes a threaded rod (16) rotatably connected to the inner surface of the filter frame (3), and a movable frame (17) is threadedly connected to the outer surface of the threaded rod (16), which limits the sliding of the movable frame (17) on the inner surface of the filter frame (3). A pull rod (18) is rotatably connected to the outer surface of the movable frame (17), and a hanging ear (19) is rotatably connected to the outer surface of the pull rod (18). A clamping rod (20) is installed on the outer surface of the hanging ear (19), and the clamping rod (20) is positioned and rotated in the built-in groove (21) opened in the filter frame (3). A clamping block (22) is installed on the outer surface of the clamping rod (20), and a sealing strip (2) is clamped and connected to the outer surface of the clamping block (22).

10. An activated carbon composite filter material for an automotive air conditioning filter according to claim 9, characterized in that: The filter frame (3) forms a threaded sliding structure with the movable frame (17) through the threaded rod (16), and the movable frame (17) forms a linkage rotation structure with the clamping rod (20) through the pull rod (18) and the hanging ear (19). The clamping rod (20) forms a nested rotation structure with the filter frame (3) through the built-in groove (21). At the same time, the clamping rod (20) and the clamping block (22) form an integrated structure, and the filter frame (3) forms a clamping and limiting structure with the edge sealing strip (2) through the clamping block (22).

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