Aluminum alloy upper cover of automobile retarder filter element

By using aluminum alloy materials and a one-piece reinforced structure design, the problem of easy deformation of the filter element is solved, achieving higher strength and sealing performance, ensuring stable operation of the retarder and extending its service life.

CN224245296UActive Publication Date: 2026-05-15SHANDONG LANFEI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG LANFEI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-08-12
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The existing automotive retarder filter elements have unreasonable material and structural design, which makes the filter elements prone to deformation, seal failure, and impurities entering the engine, affecting the stability and lifespan of the retarder.

Method used

The filter element cover is made of aluminum alloy and has multiple radial and ring-shaped reinforcing ribs. Combined with the integrally formed inner and outer fixing cylinders, a sealing structure is formed to enhance the overall strength and sealing performance.

Benefits of technology

It improves the overall strength of the filter element cover, prevents deformation due to high temperature or pressure, ensures sealing, extends the service life of the retarder, and maintains stable system operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

An automobile retarder filter element aluminum alloy upper cover comprises a cover body, the cover body protrudes outwards, a plurality of reinforcing ribs are arranged on the outer side face of the cover body, the edge of the cover body is bent downwards to form cylindrical insertion sealing outer edges, and solid cylindrical mounting lugs which are symmetrical left and right are arranged on the insertion sealing outer edges on the two sides of the cover body respectively. An inner fixing cylinder and an outer fixing cylinder with the circle centers overlapped are arranged on the lower surface of the cover body on the inner ring of the insertion sealing outer edge, the inner fixing cylinder and the outer fixing cylinder are separated, an annular gap is formed between the outer fixing cylinder and the inner side face of the insertion sealing outer edge, and the cover body, the strip-shaped reinforcing ribs, the mounting lugs, the inner fixing cylinder and the outer fixing cylinder are integrally formed through aluminum alloy. The structure is more easily formed by processing ADC12 aluminum alloy conforming to the JIS standard, the overall strength can be improved by about 30%, the cover body is effectively prevented from being deformed due to high temperature or pressure, the sealing performance of the sealing part is good, impurities are prevented from directly entering the retarder, and the service life of the retarder is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of automotive filter technology, specifically to an aluminum alloy cover for an automotive retarder filter. Background Technology

[0002] A retarder filter element typically refers to a device used to filter impurities from the oil or air within a retarder system. Commonly found in hydraulic retarders, its main functions include: 1. Filtering solid impurities: The filter element effectively intercepts externally introduced solid particles (such as particles generated from metal scrap) and impurities generated within the system, preventing them from entering the retarder and avoiding blockage or wear on critical components. 2. Protecting system components: Through continuous filtration, the filter element extends the service life of internal retarder parts, reduces malfunctions caused by impurity accumulation, and ensures stable system operation. 3. Maintaining oil cleanliness: In industrial applications such as heavy-duty trucks, the filter element prevents the accumulation of dust particles in the oil, avoiding blockage of valve bodies or affecting the efficiency of the hydraulic system, ensuring the reliability and safety of the retarder.

[0003] However, the current filter elements of this type have unreasonable materials and structural designs. They are made of plastics and lack necessary reinforcing structures, making them prone to deformation under high temperatures or pressure, leading to filter paper damage, seal failure, and impurities directly entering the engine. To address this, a design patent for an automotive retarder filter element was applied for, comprising an outer cover, an inner cover, and filter media. The end faces of the outer and inner covers are fixedly connected by a cylindrical filter media structure. The outer cover is made of aluminum alloy, and the inner cover is made of nylon. The edge of the outer cover is bent inwards, leaving a gap with the outer end of the filter media, forming a cylindrical insertion sealing edge. The outer cover protrudes outwards, and multiple radially arranged strip-shaped reinforcing ribs are provided on its outer surface. These ribs are evenly distributed around the center of the outer surface of the outer cover and are integrally formed with the outer cover. However, during long-term use, it was found that the top cover is not only difficult to manufacture and its design structure needs improvement, but its overall strength also needs to be enhanced. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide an aluminum alloy cover for an automotive retarder filter element.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: an aluminum alloy cover for an automotive retarder filter element, comprising a cover body that protrudes outward, with multiple strip-shaped reinforcing ribs arranged radially from the center of the cover body on the outer side surface of the cover body, the edge of the cover body being bent downward to form a cylindrical insertion sealing outer edge, and symmetrical solid cylindrical mounting ears being provided on the insertion sealing outer edges on both sides of the cover body, and inner and outer fixing cylinders with overlapping centers being provided on the lower surface of the cover body within the inner ring of the insertion sealing outer edge, the inner fixing cylinder and the outer fixing cylinder being separated, and an annular gap being formed between the outer fixing cylinder and the inner side surface of the insertion sealing outer edge, the cover body, strip-shaped reinforcing ribs, mounting ears, inner fixing cylinder and outer fixing cylinder being integrally formed from ADC12 aluminum alloy conforming to JIS standards.

[0006] Furthermore, the upper surface of the cover is provided with multiple rings of cylindrical reinforcing ribs from the inside out. Each cylindrical reinforcing rib is centered on the center of the upper surface of the cover. On the outer side of the outermost cylindrical reinforcing rib and between the strip reinforcing ribs, there is an outer edge reinforcing rib. The outer edge reinforcing rib is perpendicular to the surface of the cover and is fixedly connected to the surface of the cover and the outer side of the outermost cylindrical reinforcing rib. The cylindrical reinforcing rib and the outer edge reinforcing rib are integrally formed with the cover.

[0007] Furthermore, a solid columnar structure protruding from the cover body is provided at the center of the convergence of the strip-shaped reinforcing ribs, and the solid columnar structure is integrally formed with the cover body.

[0008] Furthermore, each strip-shaped reinforcing rib and the outermost cylindrical reinforcing rib are respectively provided with a column-shaped reinforcing column at their overlapping and intersecting parts, and the reinforcing column and the cover are integrally formed.

[0009] Furthermore, the cover is provided with annular reinforcing ribs arranged vertically on the periphery, and multiple side reinforcing ribs are provided on the periphery between the annular reinforcing ribs. The annular reinforcing ribs and the side reinforcing ribs are integrally formed with the cover.

[0010] Furthermore, the lower surface of the cover between the inner and outer fixing cylinders is provided with multiple reinforcing rib grooves that are recessed into the cover body, and the reinforcing rib grooves are arranged centrally with the center of the inner fixing cylinder as the center point.

[0011] Furthermore, the top of the solid columnar structure is provided with a hemispherical groove that is recessed into the solid columnar structure.

[0012] Furthermore, the bottom edge of the outer edge of the plug seal is lower than the annular reinforcing rib, and an inwardly recessed sealing ring fixing groove is provided on the circumferential surface of the bottom edge of the outer edge of the plug seal.

[0013] With the above settings, the structure of this utility model is more easily formed using ADC12 aluminum alloy conforming to JIS standards, and the overall structure is more robust. After testing, the overall strength can be increased by about 30%, which fully guarantees the overall strength of the cover, effectively prevents the cover from deforming due to high temperature or pressure, ensures that the internal filter paper structure does not deform or break, and the sealing parts have good sealing performance, thereby preventing impurities from directly entering the retarder, effectively ensuring the normal and stable operation of the retarder, and extending the service life of the retarder. Attached Figure Description

[0014] The present invention will now be further described with reference to the accompanying drawings.

[0015] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a top view of the structure of this utility model;

[0018] Figure 4 for Figure 3 A schematic diagram of the AA-plane cross-section structure;

[0019] Figure 5 for Figure 3 A schematic diagram of the BB surface cross-section structure. Detailed Implementation

[0020] like Figure 1-5 As shown, an aluminum alloy cover for an automotive retarder filter element includes a cover body 1, which protrudes outward. Multiple strip-shaped reinforcing ribs 2 are arranged radially from the center of the cover body 1 on its outer surface. The edge of the cover body 1 is bent downward to form a cylindrical insertion sealing outer edge 3. Symmetrical solid cylindrical mounting ears 4 are respectively provided on the insertion sealing outer edges 3 on both sides of the cover body 1. An inner fixing cylinder 11 and an outer fixing cylinder 12 with overlapping centers are respectively provided on the lower surface of the cover body 1 within the inner ring of the insertion sealing outer edge 3. The inner fixing cylinder 11 and the outer fixing cylinder 12 are separated, and an annular gap is formed between the outer fixing cylinder 12 and the inner surface of the insertion sealing outer edge 3. The cover body 1, the strip-shaped reinforcing ribs 2, the mounting ears 4, the inner fixing cylinder 11, and the outer fixing cylinder 12 are integrally formed from ADC12 aluminum alloy conforming to JIS standards.

[0021] In addition, the upper surface of the cover 1 is provided with multiple rings of cylindrical reinforcing ribs 5 from the inside out. Each cylindrical reinforcing rib 5 is centered on the center of the upper surface of the cover 1. On the outer side of the outermost cylindrical reinforcing rib 5 and between the strip reinforcing ribs 2, there is an outer edge reinforcing rib 6. The outer edge reinforcing rib 6 is perpendicular to the surface of the cover 1 and is fixedly connected to the surface of the cover 1 and the outer side of the outermost cylindrical reinforcing rib 5. The cylindrical reinforcing ribs 5 and the outer edge reinforcing ribs 6 are integrally formed with the cover 1.

[0022] The center of the strip-shaped reinforcing ribs 2 is provided with a solid column structure 7 protruding from the body of the cover 1. The solid column structure 7 is integrally formed with the cover 1. Each strip-shaped reinforcing rib 2 and the outermost cylindrical reinforcing rib 5 are respectively provided with a column-shaped reinforcing column 8 at their overlapping and intersecting parts, and the reinforcing column 8 is integrally formed with the cover 1.

[0023] The cover 1 has annular reinforcing ribs 9 arranged vertically on its circumference. Multiple side reinforcing ribs 10 are provided on the circumference of the cover 1 between the annular reinforcing ribs 9. The annular reinforcing ribs 9 and the side reinforcing ribs 10 are integrally formed with the cover 1. Multiple reinforcing rib grooves 13 are provided on the lower surface of the cover 1 between the inner fixing cylinder 11 and the outer fixing cylinder 12, which are recessed into the body of the cover 1. The reinforcing rib grooves 13 are arranged centrally with the center of the inner fixing cylinder 11 as the center point.

[0024] The top of the solid columnar structure 7 is provided with a hemispherical groove 14 that is recessed into the solid columnar structure 7. The bottom edge of the insertion sealing outer edge 3 is lower than the annular reinforcing rib 9, and an inwardly recessed sealing ring fixing groove 15 is provided on the circumferential surface of the bottom edge of the insertion sealing outer edge 3. The sealing ring fixing groove 15 can be used to place the sealing ring.

[0025] Working principle of this utility model: This utility model is used to replace the outer cover of a previously applied automotive transmission fluid retarder filter element. The usage is the same as the existing outer cover, but the structure is optimized. Symmetrical solid cylindrical mounting ears 4 are respectively provided on the outer edge 3 of the insertion sealing on both sides of the cover body 1. An inner fixing cylinder 11 and an outer fixing cylinder 12 with overlapping centers are respectively provided on the lower surface of the cover body 1 within the inner ring of the insertion sealing outer edge 3. This not only facilitates integral processing but also ensures the strength of the mounting ears 4 on both sides. An outer edge reinforcing bar is provided between the strip-shaped reinforcing ribs 2. Rib 6 is used to reinforce the outer edge of the cover 1, which can effectively prevent the weak outer edge from cracking and deforming, ensure the overall structural strength of the outer edge, and help ensure the sealing of the part after it is fixed. Each strip-shaped reinforcing rib 2 and the outermost cylindrical reinforcing rib 5 are respectively provided with column-shaped reinforcing columns 8, and the reinforcing columns 8 are integrally formed with the cover 1. The reinforcing columns 8 further strengthen the strength of the connection between the outermost cylindrical reinforcing rib 5 and the strip-shaped reinforcing rib 2, thereby effectively preventing the outer ends of the outermost cylindrical reinforcing rib 5 and the strip-shaped reinforcing rib 2 from deforming due to force.

[0026] In summary, the structure of this utility model is easier to process and form using ADC12 aluminum alloy that conforms to JIS standards, and the overall structure is more robust. Tests have shown that the overall strength can be increased by about 30%, which fully guarantees the overall strength of the cover and effectively prevents the cover from deforming due to high temperature or pressure. It also ensures that the internal filter paper structure does not deform or break, and the sealing parts have good sealing performance, thereby preventing impurities from directly entering the retarder. This effectively ensures the normal and stable operation of the retarder and extends its service life.

[0027] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. An aluminum alloy cover for an automotive retarder filter element, comprising a cover body (1), the cover body (1) protruding outward, and the outer side of the cover body (1) being provided with multiple strip-shaped reinforcing ribs (2) arranged radially from the center of the cover body (1), and the edge of the cover body (1) being bent downward to form a cylindrical insertion sealing outer edge (3), characterized in that: The outer edge (3) of the plug-in seal on both sides of the cover (1) is provided with solid cylindrical mounting ears (4) that are symmetrical on the left and right. The lower surface of the cover (1) of the inner ring of the plug-in seal outer edge (3) is provided with an inner fixing cylinder (11) and an outer fixing cylinder (12) with overlapping centers. The inner fixing cylinder (11) and the outer fixing cylinder (12) are separated, and an annular gap is formed between the outer fixing cylinder (12) and the inner side of the plug-in seal outer edge (3). The cover (1), the strip reinforcing rib (2), the mounting ears (4), the inner fixing cylinder (11) and the outer fixing cylinder (12) are die-cast from ADC12 aluminum alloy.

2. The aluminum alloy top cover for an automotive retarder filter element as described in claim 1, characterized in that: The upper surface of the cover (1) is provided with multiple rings of cylindrical reinforcing ribs (5) from the inside out. Each cylindrical reinforcing rib (5) is centered on the center of the upper surface of the cover (1). Outside the outermost cylindrical reinforcing rib (5) and between the strip reinforcing ribs (2), there is an outer edge reinforcing rib (6). The outer edge reinforcing rib (6) is perpendicular to the surface of the cover (1) and is fixedly connected to the surface of the cover (1) and the outer side of the outermost cylindrical reinforcing rib (5). The cylindrical reinforcing rib (5) and the outer edge reinforcing rib (6) are integrally formed with the cover (1).

3. The aluminum alloy top cover for an automotive retarder filter element as described in claim 1, characterized in that: The center of the strip-shaped reinforcing ribs (2) is provided with a solid columnar structure (7) protruding from the body of the cover (1), and the solid columnar structure (7) is integrally formed with the cover (1).

4. The aluminum alloy top cover for an automotive retarder filter element as described in claim 2, characterized in that: Each strip-shaped reinforcing rib (2) and the outermost cylindrical reinforcing rib (5) are respectively provided with a column-shaped reinforcing column (8), and the reinforcing column (8) and the cover (1) are integrally formed.

5. The aluminum alloy top cover for an automotive retarder filter element as described in claim 1, characterized in that: The cover (1) is provided with annular reinforcing ribs (9) arranged vertically on the periphery. Multiple side reinforcing ribs (10) are provided on the periphery of the cover (1) between the annular reinforcing ribs (9). The annular reinforcing ribs (9) and the side reinforcing ribs (10) are integrally formed with the cover (1).

6. The aluminum alloy top cover for an automotive retarder filter element as described in claim 1, characterized in that: The lower surface of the cover (1) between the inner fixing cylinder (11) and the outer fixing cylinder (12) is provided with multiple reinforcing rib grooves (13) that are recessed into the body of the cover (1), and the reinforcing rib grooves (13) are arranged in a central arrangement with the center of the inner fixing cylinder (11) as the center point.

7. The aluminum alloy top cover for an automotive retarder filter element as described in claim 3, characterized in that: The top of the solid columnar structure (7) is provided with a hemispherical groove (14) that is recessed into the solid columnar structure (7).

8. The aluminum alloy top cover for an automotive retarder filter element as described in claim 5, characterized in that: The bottom edge of the plug-in sealing outer edge (3) is lower than the annular reinforcing rib (9), and an inwardly recessed sealing ring fixing groove (15) is provided on the circumferential surface of the bottom edge of the plug-in sealing outer edge (3).