Filter cover cap for automobile air conditioner
By designing a combined structure of threaded cylinder, tapered rod, limiting groove and magnet block, the problem of inconvenient replacement of the inner core of traditional automotive air conditioning filter cover is solved, realizing convenient replacement of the inner core and stable connection of the device, improving replacement efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHUN SILVER TECHNOLOGY CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional automotive air conditioning filter covers are inefficient to fit when replacing the filter element and require repeated tightening of screws, making replacement inconvenient.
A filter cover for automotive air conditioning has been designed. Through a combination structure of threaded cylinder, tapered rod, limiting groove and magnetic block, the filter top cover and the outer shell are conveniently limited and stably connected. Spring and adjusting plate are used to assist in the stable fixation of the inner core, and the cooperation of pull rod and limiting plate enables convenient disassembly.
It improves the efficiency of filter element replacement, simplifies the replacement process, reduces operation steps and time, and enhances the stability and convenience of the device.
Smart Images

Figure CN224126804U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive air conditioning filter technology, specifically to a filter cover for automotive air conditioning. Background Technology
[0002] Car air conditioning filters, also known as cabin air filters or pollen filters, primarily function to filter the air entering the car from the outside, improving air cleanliness.
[0003] Traditional automotive air conditioning filter covers house the filter core inside during use. However, most traditional filter cores are designed to fit the cover, meaning that when the filter core needs replacement, it can only be installed by aligning it with the compatible core. This affects the device's compatibility. Furthermore, traditional covers are secured with screws, requiring repeated unscrewing when replacing the filter core, making it difficult to easily replace the filter core. Summary of the Invention
[0004] In view of the shortcomings of the prior art, this utility model provides a filter cover for automotive air conditioning to solve the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a filter cover for automotive air conditioning, including a filter housing, a filter top cover overlapping the top of the filter housing, a side cover overlapping the side of the filter housing, and the inner wall of the side cover overlapping the side of the filter top cover, a filter core being provided on the inner wall of the filter housing, a threaded cylinder being threadedly connected to the inner wall of the top of the filter top cover, a tapered rod being slidably sleeved on the inner wall of the threaded cylinder, and the outer edge of the bottom of the tapered rod being tightly fitted with the top of the filter core, a circular groove being provided on the side of the side cover, a sliding groove one being provided on the side of the inner wall of the circular groove, a sliding groove two being provided on the side of the side of the filter housing, a limiting groove being provided on the side of the inner wall of the sliding groove two, and a limiting plate being rotatably sleeved on the inner wall of the limiting groove.
[0006] As a preferred embodiment of this utility model, a spring is fixedly connected to the top of the inner wall of the threaded cylinder, and the bottom of the spring is fixedly connected to the top of the tapered rod. An adjusting plate is fixedly mounted on the top of the threaded cylinder.
[0007] As a preferred embodiment of this utility model, a magnet block is fixedly assembled on the side of the inner wall of the limiting groove, and a magnet plate is fixedly assembled on the outer edge of the limiting plate, and the magnet plate and the side adjacent to the magnet block are attracted to each other.
[0008] As a preferred technical solution of this utility model, the shape and size of the outer edge of the limiting plate and the magnet plate are adapted to the shape and size of the inner wall of the second slide and the inner wall of the first slide. A pull rod is fixedly mounted on the side of the limiting plate, and the outer edge of the pull rod is movably connected to the inner wall of the first slide, the inner wall of the second slide, and the inner wall of the circular groove.
[0009] As a preferred embodiment of this utility model, a pressure plate is rotatably connected to the side of the filter housing, and a locking rod is fixedly mounted on the side of the filter top cover, with the inner wall of the locking rod engaging with the side of the pressure plate. The shape and size of the inner wall of the pressure plate are adapted to the shape and size of the outer edge of the filter top cover.
[0010] As a preferred embodiment of this utility model, the number of threaded cylinders is four, and the outer edges of the four threaded cylinders are all threadedly connected to the inner wall of the filter top cover. The connection structure of the inner walls of the four threaded cylinders is completely identical. The number of pressure plates is four, and the four pressure plates are arranged in pairs on both sides of the filter housing.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This automotive air conditioning filter cover, through the cooperation of the filter top cover and the filter housing, connects the top of the filter housing and the bottom of the filter top cover. Then, the adjusting plate is rotated in the inner wall of the filter top cover, thereby driving the outer edge of the threaded cylinder to rotate in the inner wall of the filter top cover. This ensures that when the spring is in a compressed state in the inner wall of the threaded cylinder, the bottom of the cone rod limits the inner core of the filter. Then, the pressure plate is rotated until the side of the locking rod engages with the inner wall of the pressure plate, thereby assisting in the limiting of the filter top cover and the filter housing. Thus, when the spring pushes the filter top cover to move away from the filter housing, the side of the locking rod is more tightly engaged with the inner wall of the pressure plate, ensuring the stable limiting of the filter top cover and the filter housing.
[0013] 2. This automotive air conditioning filter cover, through the cooperation of a pull rod and a limiting plate, uses the pull rod to drive the outer edge of the limiting plate through the inner wall of the circular groove, the inner wall of the first sliding groove, and the inner wall of the second sliding groove to the inner wall of the limiting groove. Then, by rotating the pull rod, the outer edge of the limiting plate is brought into close contact with the inner wall of the limiting groove, which helps the magnetic plate and the magnetic block to adhere together, thus ensuring that the filter housing and the side cover can be easily and tightly attached. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic cross-sectional view of the tapered rod structure of this utility model;
[0016] Figure 3This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0017] Figure 4 This is a schematic cross-sectional view of the limiting groove of this utility model;
[0018] Figure 5 This is a cross-sectional view of the limiting plate of this utility model;
[0019] Figure 6 This utility model Figure 5 Enlarged structural diagram at point B.
[0020] In the diagram: 1. Filter housing; 2. Filter top cover; 3. Side cover; 4. Filter inner core; 5. Threaded cylinder; 6. Spring; 7. Conical rod; 8. Circular groove; 9. Slide groove one; 10. Slide groove two; 11. Limiting groove; 12. Magnet block; 13. Limiting plate; 14. Magnet plate; 15. Pull rod; 16. Pressure plate; 17. Clamping rod; 18. Adjusting plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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] Please see Figures 1-6 A filter cover for automotive air conditioning includes a filter housing 1, a filter top cover 2 overlapping the top of the filter housing 1, and a side cover 3 overlapping the side of the filter housing 1, with the inner wall of the side cover 3 overlapping the side of the filter top cover 2. A filter inner core 4 is disposed on the inner wall of the filter housing 1. A threaded cylinder 5 is threadedly connected to the inner wall of the top of the filter top cover 2. A tapered rod 7 is slidably sleeved on the inner wall of the threaded cylinder 5, with the outer edge of the bottom of the tapered rod 7 tightly abutting the top of the filter inner core 4. An opening is provided on the side of the side cover 3. There is a circular groove 8, and a sliding groove 9 is provided on the side of the inner wall of the circular groove 8. A sliding groove 10 is provided on the side of the filter housing 1. A limiting groove 11 is provided on the side of the inner wall of the sliding groove 10. A limiting plate 13 is rotatably sleeved on the inner wall of the limiting groove 11. Through the cooperation of the threaded cylinder 5 and the cone rod 7, it is convenient to rotate the outer edge of the threaded cylinder 5 in the inner wall of the filter top cover 2, so as to adjust the height of the threaded cylinder 5 according to the size of the filter inner core 4, and then use the bottom of the cone rod 7 to limit the filter inner core 4.
[0023] In a preferred embodiment, a spring 6 is fixedly connected to the top of the inner wall of the threaded cylinder 5, and the bottom of the spring 6 is fixedly connected to the top of the cone rod 7. An adjusting plate 18 is fixedly mounted on the top of the threaded cylinder 5. Through the cooperation of the spring 6 and the cone rod 7, the spring 6 pushes the cone rod 7 to move in the inner wall of the threaded cylinder 5, thereby assisting the bottom of the cone rod 7 to be stably limited to the filter inner core 4. With the addition of the adjusting plate 18, the threaded cylinder 5 can be easily rotated by the adjusting plate 18.
[0024] In a preferred embodiment, a magnet block 12 is fixedly mounted on the side of the inner wall of the limiting groove 11, and a magnet plate 14 is fixedly mounted on the outer edge of the limiting plate 13. The magnet plate 14 and the adjacent side of the magnet block 12 are attracted to each other. Through the cooperation of the magnet block 12 and the magnet plate 14, the limiting plate 13 drives the magnet plate 14 to rotate, thereby assisting the magnet plate 14 to attract the magnet block 12, thereby assisting the limiting plate 13 to be stably limited to the inner wall of the limiting groove 11.
[0025] In a preferred embodiment, the shape and size of the outer edges of the limiting plate 13 and the magnet plate 14 are adapted to the shape and size of the inner walls of the second slide groove 10 and the first slide groove 9. A pull rod 15 is fixedly mounted on the side of the limiting plate 13, and the outer edge of the pull rod 15 is movably connected to the inner walls of the first slide groove 9, the second slide groove 10, and the circular groove 8. Through the cooperation of the pull rod 15 and the limiting plate 13, the length of the pull rod 15 is a, the length of the limiting plate 13 is b, and the total length of the inner walls of the first slide groove 9, the second slide groove 10, the limiting groove 11, and the circular groove 8 is c, and a+b≤c. This ensures that when the outer edge of the limiting plate 13 is limited to the inner wall of the limiting groove 11, the side of the pull rod 15 is limited to the inner wall of the circular groove 8, thereby avoiding interference with the external installation of the side cover 3 due to the excessive length of the side of the pull rod 15.
[0026] In a preferred embodiment, a pressure plate 16 is rotatably connected to the side of the filter housing 1, and a locking rod 17 is fixedly mounted on the side of the filter top cover 2. The inner wall of the locking rod 17 engages with the side of the pressure plate 16. The shape and size of the inner wall of the pressure plate 16 are adapted to the shape and size of the outer edge of the filter top cover 2. Through the cooperation of the pressure plate 16 and the locking rod 17, the bottom of the filter top cover 2 is overlapped with the top of the filter housing 1. Then, the pressure plate 16 is rotated on the side of the filter housing 1, which helps the locking rod 17 engage with the pressure plate 16 and helps the shape and size of the inner wall of the pressure plate 16 fit with the inner wall of the filter housing 1. Thus, when the spring 6 pushes the filter top cover 2 to move towards the filter housing 1, the locking rod 17 and the pressure plate 16 engage more tightly, thereby further ensuring the stable positioning of the filter housing 1 and the filter top cover 2.
[0027] In a preferred embodiment, there are four threaded cylinders 5, and the outer edges of all four threaded cylinders 5 are threadedly connected to the inner wall of the filter top cover 2. The connection structure of the inner walls of the four threaded cylinders 5 is completely identical. There are four pressure plates 16, and the four pressure plates 16 are arranged in pairs on both sides of the filter housing 1. By adding the four threaded cylinders 5, the four threaded cylinders 5 can be adjusted independently, avoiding the problem that the cone rods 7 at different positions are difficult to stably limit the filter inner core 4 due to the cutting of the filter inner core 4. By adding the four pressure plates 16, the four pressure plates 16 can ensure the stable limit of the filter top cover 2.
[0028] Working principle: When the device is in use, the top of the filter housing 1 and the bottom of the filter top cover 2 are overlapped. Then, the adjusting plate 18 is rotated in the inner wall of the filter top cover 2. This causes the outer edge of the threaded cylinder 5 to rotate in the inner wall of the filter top cover 2, thus ensuring that when the spring 6 is compressed in the inner wall of the threaded cylinder 5, the bottom of the cone rod 7 limits the filter core 4. Then, the pressure plate 16 is rotated until the side of the locking rod 17 engages with the inner wall of the pressure plate 16, thereby assisting in limiting the filter top cover 2 and the filter housing 1. This allows the spring 6 to push the filter core 4 to rotate. When the filter top cover 2 moves away from the filter housing 1, the side of the clamping rod 17 is more tightly pressed against the inner wall of the pressure plate 16, ensuring that the filter top cover 2 and the filter housing 1 are stably limited. The pull rod 15 drives the outer edge of the limiting plate 13 through the inner wall of the circular groove 8, the inner wall of the sliding groove 19, and the inner wall of the sliding groove 10 to the inner wall of the limiting groove 11. Then, the pull rod 15 is rotated, so that the outer edge of the limiting plate 13 is pressed tightly against the inner wall of the limiting groove 11, which helps the magnet plate 14 to attract the magnet block 12, thus ensuring that the filter housing 1 and the side cover 3 can be easily pressed tightly together.
[0029] 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 conditioning filter cover for a vehicle comprising a filter housing (1), characterized in that: The top of the filter housing (1) is covered with a filter top cover (2), and the side of the filter housing (1) is covered with a side cover (3). The inner wall of the side cover (3) overlaps with the side of the filter top cover (2). The inner wall of the filter housing (1) is provided with a filter core (4). The inner wall of the top of the filter top cover (2) is threaded with a threaded cylinder (5). The inner wall of the threaded cylinder (5) is slidably sleeved with a tapered rod (7). The outer edge of the bottom of the tapered rod (7) is tightly attached to the top of the filter core (4). The side of the side cover (3) is provided with a circular groove (8). The side of the inner wall of the circular groove (8) is provided with a sliding groove one (9). The side of the filter housing (1) is provided with a sliding groove two (10). The side of the inner wall of the sliding groove two (10) is provided with a limiting groove (11). The inner wall of the limiting groove (11) is rotatably sleeved with a limiting plate (13).
2. An automotive air conditioning filter cover according to claim 1, characterized in that: A spring (6) is fixedly connected to the top of the inner wall of the threaded cylinder (5), and the bottom of the spring (6) is fixedly connected to the top of the cone rod (7). An adjusting plate (18) is fixedly mounted on the top of the threaded cylinder (5).
3. The filter cover for an automotive air conditioner according to claim 1, characterized by: A magnet block (12) is fixedly mounted on the side of the inner wall of the limiting groove (11), and a magnet plate (14) is fixedly mounted on the outer edge of the limiting plate (13), and the magnet plate (14) and the adjacent side of the magnet block (12) are attracted to each other.
4. A filter cover for automotive air conditioning according to claim 1, characterized in that: The shape and size of the outer edge of the limiting plate (13) and the magnet plate (14) are adapted to the shape and size of the inner wall of the second slide (10) and the inner wall of the first slide (9). A pull rod (15) is fixedly mounted on the side of the limiting plate (13), and the outer edge of the pull rod (15) is movably connected to the inner wall of the first slide (9), the inner wall of the second slide (10), and the inner wall of the circular groove (8).
5. The filter cover for an automotive air conditioner according to claim 1, characterized by: A pressure plate (16) is rotatably connected to the side of the filter housing (1), and a clamping rod (17) is fixedly mounted on the side of the filter top cover (2). The inner wall of the clamping rod (17) is engaged with the side of the pressure plate (16). The shape and size of the inner wall of the pressure plate (16) are adapted to the shape and size of the outer edge of the filter top cover (2).
6. An automotive air conditioning filter cover according to claim 5, characterized in that: The number of threaded cylinders (5) is four, and the outer edges of the four threaded cylinders (5) are threadedly connected to the inner wall of the filter top cover (2). The connection structure of the inner wall of the four threaded cylinders (5) is completely consistent. The number of pressure plates (16) is four, and the four pressure plates (16) are arranged in pairs on both sides of the filter housing (1).