Maintainable high-precision air filter

Abstract

The utility model relates to air filter technical field, concretely is easy maintenance high accuracy air filter, including support framework and filter core subassembly of magnetic attraction slide, and filter core subassembly is by prefiltering layer, activated carbon layer and main filter core constitutes, and through the plug -in cooperation of side -positioned T type slide rail and slide bar, magnetic attraction positioning structure, realizes quick installation, and combines the swing arm locking filter core position of rotary stopper. The design passes through multistage filter layer and promotes the filtering precision, adopts the structure of toolless dismounting to reduce the maintenance difficulty, especially adapts to the narrow space environment of engine cabin or air conditioning system.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, specifically to an easy-to-maintain high-precision air filter. Background Technology

[0002] Automotive air filters are critical functional components primarily used to filter the air entering the engine or passenger compartment, ensuring its cleanliness to guarantee efficient engine operation and high-quality air inside the vehicle. Their core functions include: Filtering impurities: Effectively intercepting pollutants such as dust, pollen, sand, and industrial particles from the air, preventing them from entering the engine combustion chamber or the vehicle's ventilation system, thus avoiding mechanical wear or impacting driver and passenger health; Protecting the engine: By providing clean intake air, optimizing the air-fuel ratio, reducing carbon buildup, extending engine life, and maintaining power performance; Improving fuel efficiency: The low-airflow-resistance filter material design balances filtration efficiency and intake volume, preventing a decrease in fuel economy due to excessive filtration resistance.

[0003] Some automotive air filters are typically installed using snap-fit, bolt / screw, or rotary methods. While these methods have their drawbacks, snap-fit ​​filters require alignment and the plastic parts are prone to breakage (especially in low-temperature environments). Bolt filters require tools for disassembly, which is time-consuming and may result in stripped threads. Rotary filters may be difficult to rotate or pull in confined spaces. Furthermore, some existing air filters use simple filter elements or have insufficient filtration cycles, resulting in inadequate filtration accuracy.

[0004] Therefore, this technical solution proposes an easy-to-maintain, high-precision air filter. Summary of the Invention

[0005] The purpose of this invention is to provide an easy-to-maintain, high-precision air filter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This easy-to-maintain high-precision air filter includes a support frame and filter elements. The support frame is a rectangular frame structure, fixed to the vehicle body via a fixing plate and bolts. One end of the fixing plate is open, and the filter elements are magnetically slidably installed inside. The filter elements consist of three parallel pre-filter layers, an activated carbon layer, and a main filter element. The pre-filter layers intercept hair and large particles, extending the life of the main filter element. The activated carbon layer adsorbs odors. The main filter element, as the core filter layer, uses borosilicate glass fiber or PTFE membrane to increase dust holding capacity. The pre-filter layers, activated carbon layers, and main filter elements are installed in the same way as the inner side of the support frame. Taking the pre-filter layer as an example, side-mounted T-shaped sliding strips are symmetrically installed on both sides of the pre-filter layer. A side-mounted T-shaped slide rail is provided on the inner wall of the support frame. The side-mounted T-shaped slide bar is inserted into the side-mounted T-shaped slide rail along the inlet end of the support frame and slides. At the same time, a positioning magnetic plate is installed on the end of the pre-filter layer facing the inside of the support frame. The inner wall of the support frame corresponding to the positioning magnetic plate has an internal magnetic suction groove. Multiple magnetic strips are evenly arranged inside the internal magnetic suction groove. The positioning magnetic plate is positioned by inserting into the internal magnetic suction groove and is fixed by magnetic attraction with the magnetic strips, so as to quickly and accurately install the pre-filter layer into the inside of the support frame. At the same time, a rotation limiter is provided on the side wall of the support frame at the inlet end of the side-mounted T-shaped slide rail corresponding to the pre-filter layer. By rotating the rotation limiter to contact the outer end wall of the pre-filter layer, the pre-filter layer that has slid into the support frame is further positioned.

[0008] Compared with the prior art, the beneficial effects of this utility model are: by the insertion and cooperation of the side-mounted T-shaped slide rail and the slide bar, combined with the magnetic attraction and fixation of the built-in magnetic groove and the positioning magnetic plate, the filter element can be quickly aligned and installed, avoiding the problems of easy damage to the buckle and stripped bolt threads.

[0009] The rotating limiting component squeezes the outer end of the filter element through the swing arm, and the buffer pad increases friction to prevent the filter element from vibrating and falling off.

[0010] Large particles are intercepted by the pre-filtration layer, odors are adsorbed by the activated carbon layer, and the main filter element is made of borosilicate glass fiber or PTFE membrane, which has high dust holding capacity and filtration efficiency of over 99.9%. Attached Figure Description

[0011] Figure 1 A partial structural diagram of an easy-to-maintain high-precision air filter;

[0012] Figure 2 for Figure 1 A magnified structural diagram of A in the middle;

[0013] Figure 3 for Figure 1 A magnified structural diagram of B in the diagram;

[0014] Figure 4 for Figure 1A magnified structural diagram of C;

[0015] Figure 5 This is a schematic diagram of the rotating limiting component in an easy-to-maintain high-precision air filter.

[0016] The components include: a support frame 10, a fixing plate 11, a pre-filter layer 12, an activated carbon layer 13, a main filter element 14, a side-mounted T-shaped slide rail 15, an internal magnetic suction groove 16, a magnetic strip 17, a side-mounted T-shaped slide rail 18, a rotation limiter 19, a rotating disk 20, a swing arm 21, an anti-detachment disk 22, a buffer pad 24, and a positioning magnetic plate 25. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-4This easy-to-maintain high-precision air filter includes a support frame 10 and a filter element. The support frame 10 is a rectangular frame structure and is fixedly installed in the vehicle body via a fixing plate 11 and bolts. One end of the fixing plate 11 is open, and the filter element is magnetically slidably installed inside. The filter element includes three sets of parallel pre-filter layers 12, activated carbon layers 13, and main filter elements 14. The pre-filter layers 12 are used to intercept hair and large particles, extending the life of the main filter elements 14. The activated carbon layers 13 are used to adsorb odors. The main filter elements 14, as the core filter layer, use borosilicate glass fiber or PTFE membrane to increase dust holding capacity. The installation method between the pre-filter layers 12, activated carbon layers 13, and main filter elements 14 and the inner side of the support frame 10 is the same. Taking the pre-filter layer 12 as an example, side-mounted T-shaped sliding strips 18 are symmetrically installed on both sides of the pre-filter layer 12, and the side-mounted T-shaped sliding strips 18 correspond to the support frame 10. A side-mounted T-shaped slide rail 15 is provided on the inner wall. A side-mounted T-shaped slide bar 18 is inserted into the side-mounted T-shaped slide rail 15 along the inlet end of the support frame 10 and slides. At the same time, a positioning magnetic plate 25 is installed on the end of the pre-filter layer 12 facing the inside of the support frame 10. A built-in magnetic suction groove 16 is provided on the inner wall of the support frame 10 corresponding to the positioning magnetic plate 25. Multiple magnetic strips 17 are evenly arranged inside the built-in magnetic suction groove 16. The positioning magnetic plate 25 is positioned by inserting into the built-in magnetic suction groove 16 and is magnetically fixed to the magnetic strips 17, so as to quickly and accurately install the pre-filter layer 12 into the inside of the support frame 10. At the same time, a rotation limiting member 19 is provided on the side wall of the support frame 10 at the inlet end of the side-mounted T-shaped slide rail 15 corresponding to the pre-filter layer 12. By rotating the rotation limiting member 19 to contact the outer end wall of the pre-filter layer 12, the pre-filter layer 12 that has slid into the inside of the support frame 10 is further positioned.

[0022] The rotating limiting component 19 includes a rotating hole on the side wall of the support frame 10. An anti-detachment disc 22 is rotatably connected inside the rotating hole. On the other side, a rotating disk 20 is connected to the outside of the rotating hole via a connecting rod. Multiple swing arms 21 are evenly installed radially on the outer circumferential wall of the rotating disk 20. By rotating the rotating disk 20, one of the swing arms 21 is controlled to swing to the end of the pre-filter layer 12 and contact it, thereby further restricting the detachment of the pre-filter layer 12 from the inside of the support frame 10. During this process, a buffer pad 24 is provided on the side of the swing arm 21 that contacts the outer wall of the pre-filter layer 12 to increase the squeezing force of the swing arm 21 on the pre-filter layer 12 and prevent the rotating disk 20 from loosening and rotating.

[0023] In this embodiment of the invention, if the air filter is used in the engine, it is usually installed at the front of the engine compartment: near the air intake grille (to shorten the air intake pipe and reduce resistance), or above or to the side of the engine;

[0024] If used in air conditioning systems, for traditional gasoline-powered vehicles:

[0025] Inside the instrument panel (passenger compartment side): behind the glove box, below the windshield (at the external air intake);

[0026] By installing this filter behind the air intake grille, the filter element is quickly inserted into the support frame 10 via a magnetic slide rail. The swing arm 21 of the rotating limiting component 19 presses against the filter element, which can withstand engine vibration. The multi-stage filter layer can effectively intercept sand and dust and PM2.5, thereby extending engine life.

[0027] New energy vehicles:

[0028] Near the front trunk: Since there is no engine, the air conditioning filter may be moved to the front or inside the firewall: Integrated in the air intake channel of the heat pump system. By installing this filter near the front trunk or in the air intake channel of the heat pump system, the split filter design makes it easy to replace the activated carbon layer 13 to deal with odors in the vehicle. The PTFE main filter element 14 is mold-resistant in humid environments and is suitable for electric vehicles without an engine heat source.

[0029] In one embodiment of the present invention, the pre-filter layer 12 is a non-woven fabric or a metal filter screen, and the activated carbon layer 13 is a honeycomb activated carbon structure.

[0030] When the fixing plate 11 of the supporting frame 10 is connected to the vehicle body by bolts, a buffer rubber ring is provided at its open end.

[0031] This filter element adopts a split structure, and the pre-filtration layer 12, activated carbon layer 13, and main filter element 14 can be disassembled and replaced individually.

[0032] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An easy-to-maintain high-precision air filter, comprising a support frame (10) and a filter element, characterized in that: The filter element is composed of a pre-filter layer (12), an activated carbon layer (13), and a main filter element (14); the inner wall of the support frame (10) is symmetrically provided with side-mounted T-shaped slide rails (15), and the filter element is provided with matching side-mounted T-shaped slide strips (18) on both sides; the support frame (10) has an internal magnetic groove (16) and an internal magnetic strip (17), and the end of the filter element is provided with a positioning magnetic plate (25) to fix the filter element by magnetic attraction; the side wall of the support frame (10) is provided with a rotation limiting component (19) to lock the position of the filter element.

2. The easy-to-maintain high-precision air filter according to claim 1, characterized in that, The rotating limiting component (19) includes a rotating disk (20), a swing arm (21) and an anti-detachment disk (22). The end of the swing arm (21) is provided with a buffer pad (24). The limiting is achieved by rotating the swing arm (21) to squeeze the outer end of the filter element.

3. The easy-to-maintain high-precision air filter according to claim 1, characterized in that, The main filter element (14) is made of borosilicate glass fiber or PTFE membrane material.

4. The easy-to-maintain high-precision air filter according to claim 1, characterized in that, The pre-filter layer (12) is a non-woven fabric or a metal filter, and the activated carbon layer (13) is a honeycomb activated carbon structure.

5. The easy-to-maintain high-precision air filter according to claim 1, characterized in that, The fixing plate (11) of the supporting frame (10) is connected to the vehicle body by bolts, and a buffer rubber ring is provided at the open end.

6. The easy-to-maintain high-precision air filter according to claim 1, characterized in that, The filter element assembly has a split structure, and the pre-filtration layer (12), activated carbon layer (13), and main filter element (14) can be disassembled and replaced separately.

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