Easy-to-replace automotive filter assembly

Abstract

This utility model belongs to the field of automotive filter technology, and in particular to an easy-to-replace automotive filter assembly. A sealing plate for supporting and sealing the lower part of the filter element is bonded to the lower inner surface of the filter housing. An elastic sealing element for elastic sealing the upper part of the filter element is bonded to the upper inner surface of the filter housing. An integrally formed mounting ring is formed at the open end of the filter housing. Iron pieces are bonded to the four corners of the mounting ring, and a sealing cover is provided on the surface of the mounting ring. By providing a sealing plate on the lower inner surface of the filter housing, a stable lower support is provided for the filter element, while simultaneously achieving a tight seal between the bottom of the filter element and the housing. The elastic sealing element on the upper inner surface of the housing forms an elastic pressure-limiting seal on the upper part of the filter element. This coordinated sealing structure effectively compensates for assembly dimensional deviations and avoids the sealing problems that easily occur in traditional single-seal methods.

Description

Technical Field

[0001] This utility model belongs to the field of automotive filter technology, specifically relating to an easy-to-replace automotive filter assembly. Background Technology

[0002] In automotive air conditioning intake systems, the air filter is a key component ensuring in-vehicle air quality and the normal operation of the air conditioning system. It filters out impurities such as dust, pollen, particulate matter, and odor molecules from the air, preventing pollutants from entering the vehicle and affecting the health of passengers. It also prevents components like the air conditioning evaporator from experiencing reduced heat exchange efficiency and extending their lifespan due to dust accumulation. Most current automotive air conditioning air filters employ a combination structure of a housing and a sealing cover, with the filter element fixed within the housing cavity. However, current air conditioning filters have significant shortcomings in terms of sealing and disassembly: Firstly, the seal between the filter element and the housing often uses rigid contact or a single sealing structure. During assembly, dimensional deviations can easily lead to incomplete sealing, allowing unfiltered polluted air to directly enter the vehicle, affecting the filtration and purification effect. Some structures using elastic seals lack a coordinated upper and lower sealing support design, making the filter element prone to shifting under airflow impact or vehicle bumps, resulting in a significant decline in sealing performance over long-term use. Secondly, the connection between the sealing cover and the housing mostly relies on traditional connectors such as bolts and clips. Disassembly and assembly require tools, making the process cumbersome, especially during regular filter replacement and air conditioning maintenance, which consumes a lot of time and reduces maintenance efficiency. Some clip-on connections are prone to clip breakage and loosening after repeated disassembly and assembly, further affecting the overall sealing performance and service life of the filter. Therefore, there is an urgent need for an automotive air conditioning filter structure that can achieve reliable sealing of the filter elements while facilitating quick disassembly and maintenance, in order to solve the problems of poor sealing performance and low disassembly efficiency in the existing technology. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing an easily replaceable automotive filter assembly. The specific technical solution is as follows: An easily replaceable automotive filter assembly includes a filter housing and a filter element for air filtration installed inside the filter housing. A sealing plate for supporting and sealing the lower inner surface of the filter housing is bonded to the filter element, and an elastic sealing element for elastic sealing the upper part of the filter element is bonded to the upper inner surface of the filter housing. An integrally formed mounting ring is formed at the open end of the filter housing. Iron pieces are bonded to the four corners of the mounting ring. A sealing cover is provided on the surface of the mounting ring. Magnets are bonded to the holes opened at the four corners of the sealing cover, and the magnets are inserted into the holes opened at the four corners of the mounting ring and magnetically attracted and fixed to the iron pieces.

[0004] Preferably, the elastic seal includes a corrugated rubber tube bonded to the upper inner surface of the filter housing, a rubber plate bonded to the lower end of the corrugated rubber tube and conforming to the upper surface of the filter element, a spring bonded to the upper surface of the rubber plate, and the upper end of the spring bonded to the upper inner surface of the filter housing.

[0005] Preferably, the rubber sheet is provided with an upwardly curved plate facing the open end.

[0006] Preferably, the filter element includes a rubber ring, and the rubber ring is provided with an upper non-woven fabric, an activated carbon breathable plate, a first filter cotton layer, a second filter cotton layer and a lower non-woven fabric in sequence from top to bottom. The upper and lower non-woven fabrics are both corrugated. A support rod for supporting the upper non-woven fabric is fixed inside the rubber ring. Gauze layers are bonded to both sides of the activated carbon breathable plate.

[0007] Preferably, the upper nonwoven fabric has a mesh count of 12, the gauze layer has a mesh count of 20, the first filter cotton layer has a mesh count of 50, the second filter cotton layer has a mesh count of 100, and the lower nonwoven fabric has a mesh count of 20.

[0008] Preferably, the upper part of the filter housing is integrally formed with an upper pipe for air intake, and the lower part of the filter housing is integrally formed with a lower pipe for air outlet.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. Improved Filter Seal Reliability: By installing a sealing plate on the lower inner surface of the filter housing, a stable lower support is provided for the filter element, while simultaneously achieving a tight seal between the bottom of the filter element and the filter housing. The elastic sealing element on the upper inner surface of the filter housing forms an elastic pressure-limiting seal on the upper part of the filter element. This coordinated sealing structure effectively compensates for assembly dimensional deviations and avoids the sealing problems that easily occur in traditional single-seal methods. Even under vehicle bumps or the impact of airflow from strong air conditioning, the filter element maintains a stable seal, significantly improving air filtration and purification effects and providing a clean and healthy breathing environment inside the vehicle.

[0010] 2. Enables quick installation and removal of the sealing cover: The sealing cover is magnetically fixed to the iron plate on the mounting ring by a magnetic block, replacing the traditional bolt and buckle connection method. The installation and removal process does not require any tools and can be completed manually, which greatly simplifies the operation steps of replacing the filter.

[0011] 3. Enhanced Structural Stability and Adaptability: The mounting ring is integrally molded with the filter housing, improving the structural strength of the connection and avoiding deformation issues during assembly. Both the sealing plate and the elastic seal are fixed using adhesive bonding, simplifying the assembly process and allowing for compatibility with various sizes and specifications of air conditioning filters (such as ordinary filters and activated carbon filters), reducing production and maintenance costs. Furthermore, the magnetically connected sealing cover maintains a stable fit even under vehicle vibration conditions, further ensuring the filter's sealing performance and structural reliability. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of a half-section of the present invention; Figure 3 This is a schematic diagram of the disassembled structure of the parts of this utility model; Figure 4 for Figure 2 Enlarged structural diagram at point A; Figure 5 for Figure 3 A magnified structural diagram at point B in the middle.

[0013] Reference numerals: 1. Filter housing; 2. Elastic seal; 21. Corrugated hose; 22. Rubber plate; 23. Spring; 24. Arc plate; 3. Sealing plate; 4. Filter element; 41. Rubber ring; 42. Upper non-woven fabric; 43. Support rod; 44. Gauze layer; 45. Activated carbon breathable plate; 46. First filter cotton layer; 47. Second filter cotton layer; 48. Lower non-woven fabric; 5. Mounting ring; 6. Sealing cover plate; 7. Magnet block; 8. Iron sheet; 9. Upper pipe; 10. Lower pipe. Detailed Implementation

[0014] The technical solution of this utility model will now be described with reference to the accompanying drawings and embodiments.

[0015] Please see Figure 1-5 This embodiment provides the following technical solution: an easily replaceable automotive filter assembly, including a filter housing 1 and a filter element 4 for air filtration installed inside the filter housing 1. A sealing plate 3 for supporting and sealing the lower part of the filter element 4 is bonded to the lower inner surface of the filter housing 1, and an elastic sealing element 2 for elastic sealing the upper part of the filter element 4 is bonded to the upper inner surface of the filter housing 1. An installation ring 5 is integrally formed at the open end of the filter housing 1, and iron pieces 8 are bonded to the four corners of the installation ring 5. A sealing cover plate 6 is provided on the surface of the installation ring 5, and magnet blocks 7 are bonded to the holes opened at the four corners of the sealing cover plate 6. The magnet blocks 7 are inserted into the holes opened at the four corners of the installation ring 5 and are magnetically attracted and fixed to the iron pieces 8.

[0016] In this embodiment, the filter element 4 is elastically sealed within the filter housing 1 by an elastic sealing element 2 on the upper inner surface and a sealing plate 3 on the lower inner surface of the filter housing 1. The sealing plate 3 supports the lower part of the filter element 4 while sealing it, and the elastic sealing element 2 provides elastic pressure-limiting sealing for the upper part of the filter element 4. This allows the filter element 4 to be elastically sealed within the filter housing 1, facilitating its filtration of the air passing through the filter housing 1. The mounting ring 5, integrally formed at the opening end of the filter housing 1, is magnetically fixed to the sealing cover plate 6 by a magnet block 7 and an iron sheet 8, facilitating quick disassembly and assembly of the sealing cover plate 6, and thus facilitating the disassembly and replacement of the filter element 4.

[0017] Specifically, the elastic seal 2 includes a corrugated rubber tube 21 bonded to the upper inner surface of the filter housing 1, a rubber plate 22 bonded to the lower end of the corrugated rubber tube 21 and attached to the upper surface of the filter element 4, a spring 23 bonded to the upper surface of the rubber plate 22, and the upper end of the spring 23 bonded to the upper inner surface of the filter housing 1. The rubber plate 22 is provided with an upwardly sloping arc plate 24 facing the opening end.

[0018] In this embodiment, an elastic sealing element 2 is used, which is composed of a corrugated rubber tube 21, a rubber plate 22, a spring 23, and an arc plate 24. The corrugated rubber tube 21, which is bonded to the upper inner surface of the filter housing 1, is used to support the rubber plate 22. The two ends of the spring 23 are bonded to the upper surface of the rubber plate 22 and the upper inner surface of the filter housing 1, so that the rubber plate 22 can be supported by the spring 23. This allows the rubber plate 22 to be tightly attached to the upper end of the filter element 4 under the action of the corrugated rubber tube 21 and the spring 23, thus achieving an elastic seal at the upper end of the filter element 4.

[0019] Specifically, the filter element 4 includes a rubber ring 41. Inside the rubber ring 41, from top to bottom, are arranged an upper non-woven fabric 42, an activated carbon breathable plate 45, a first filter cotton layer 46, a second filter cotton layer 47, and a lower non-woven fabric 48. Both the upper non-woven fabric 42 and the lower non-woven fabric 48 have a corrugated structure. A support rod 43 for supporting the upper non-woven fabric 42 is fixed inside the rubber ring 41. Gauze layers 44 are bonded to both sides of the activated carbon breathable plate 45. The upper non-woven fabric 42 has a mesh count of 12, the gauze layer 44 has a mesh count of 20, the first filter cotton layer 46 has a mesh count of 50, the second filter cotton layer 47 has a mesh count of 100, and the lower non-woven fabric 48 has a mesh count of 20.

[0020] In this embodiment, a filter element 4 is constructed from a rubber ring 41, an upper non-woven fabric 42, a support rod 43, a gauze layer 44, an activated carbon breathable plate 45, a first filter cotton layer 46, a second filter cotton layer 47, and a lower non-woven fabric 48. The upper non-woven fabric 42, the activated carbon breathable plate 45, the first filter cotton layer 46, the second filter cotton layer 47, and the lower non-woven fabric 48 are arranged sequentially from top to bottom within the rubber ring 41, facilitating the initial filtration of air by the upper non-woven fabric 42. The activated carbon breathable plate 45 is used for odor adsorption, and the gauze layers 44 bonded to both sides of the activated carbon breathable plate 45 provide protection for it. The first filter cotton layer 46 and the second filter cotton layer 47 work together for air filtration, and the support rod 43 fixed within the rubber ring 41 supports the upper non-woven fabric 42, thus facilitating the adsorption and filtration of air by the filter element 4.

[0021] Specifically, the upper part of the filter housing 1 is integrally formed with an upper pipe 9 for air intake, and the lower part of the filter housing 1 is integrally formed with a lower pipe 10 for air outlet.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An easily replaceable automotive filter assembly, comprising a filter housing (1) and a filter element (4) for air filtration installed within the filter housing (1), characterized in that: The filter housing (1) has a sealing plate (3) bonded to the lower inner surface for supporting and sealing the filter element (4), and an elastic sealing element (2) bonded to the upper inner surface for elastic sealing the filter element (4). The filter housing (1) has an integrally formed mounting ring (5) at the open end. Iron pieces (8) are bonded to the four corners of the mounting ring (5). A sealing cover plate (6) is provided on the surface of the mounting ring (5). Magnet blocks (7) are bonded to the holes opened at the four corners of the sealing cover plate (6), and the magnet blocks (7) are inserted into the holes opened at the four corners of the mounting ring (5) and magnetically attracted and fixed with the iron pieces (8).

2. The easily replaceable automotive filter assembly according to claim 1, characterized in that: The elastic seal (2) includes a corrugated rubber tube (21) bonded to the upper inner surface of the filter housing (1), and a rubber plate (22) bonded to the lower end of the corrugated rubber tube (21) and attached to the upper surface of the filter element (4). A spring (23) is bonded to the upper surface of the rubber plate (22), and the upper end of the spring (23) is bonded to the upper inner surface of the filter housing (1).

3. The easily replaceable automotive filter assembly according to claim 2, characterized in that: The rubber sheet (22) is provided with an upwardly curved plate (24) facing the open end.

4. The easily replaceable automotive filter assembly according to claim 1, characterized in that: The filter element (4) includes a rubber ring (41). The rubber ring (41) is provided with an upper non-woven fabric (42), an activated carbon breathable plate (45), a first filter cotton layer (46), a second filter cotton layer (47), and a lower non-woven fabric (48) arranged from top to bottom. The upper non-woven fabric (42) and the lower non-woven fabric (48) are both corrugated structures. A support rod (43) for supporting the upper non-woven fabric (42) is fixed inside the rubber ring (41). Gauze layers (44) are bonded to both sides of the activated carbon breathable plate (45).

5. The easily replaceable automotive filter assembly according to claim 4, characterized in that: The upper nonwoven fabric (42) has a mesh count of 12, the gauze layer (44) has a mesh count of 20, the first filter cotton layer (46) has a mesh count of 50, the second filter cotton layer (47) has a mesh count of 100, and the lower nonwoven fabric (48) has a mesh count of 20.

6. The easily replaceable automotive filter assembly according to claim 1, characterized in that: The upper part of the filter housing (1) is integrally formed with an upper pipe (9) for air intake, and the lower part of the filter housing (1) is integrally formed with a lower pipe (10) for air outlet.

Images