Lightweight helical spring for a motor vehicle shock absorber

By designing a lightweight coil spring for automotive shock absorbers, employing a progressive pitch and diameter variation structure, and combining stress dispersion grooves and lightweight filling cavities, the problems of traditional coil springs being heavy and having poor adaptability are solved, thereby improving fuel efficiency and handling performance.

CN224301273UActive Publication Date: 2026-05-29HENAN HUAWEI SPRING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN HUAWEI SPRING CO LTD
Filing Date
2025-07-08
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional coil spring designs are not good at weight control, which increases the overall vehicle weight, affects fuel efficiency and handling performance, and has a relatively simple structure, limiting its adaptability to complex road conditions.

Method used

A lightweight helical spring for automotive shock absorbers is designed, employing an upper section with equal diameter and pitch, a middle section with variable diameter and pitch transition, and a lower support and stabilizing section. Combined with multiple recessed stress dispersion grooves and lightweight filling cavities, the continuous transition of the structure is achieved through gradual changes in pitch and diameter, thereby optimizing stress distribution and reducing weight.

Benefits of technology

It effectively reduces spring weight, improves fuel economy and handling stability, enhances adaptability to different road conditions, and has the advantages of simple structure, easy processing and wide application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of light weight spiral springs for automobile shock absorber, including spiral spring main body, the spiral spring main body is by sequentially connected upper end equidistance section, middle section variable-diameter variable-pitch transition section and lower end support stable section Composition, the inside of middle section variable-diameter variable-pitch transition section is provided with a plurality of recessed stress dispersion groove, outside is provided with light filling cavity, the progressive change of pitch and diameter is realized between the upper end equidistance section, middle section variable-diameter variable-pitch transition section and lower end support stable section Continuous transition of each section structure.The light weight spiral spring for automobile shock absorber effectively reduces the weight of spring itself, improves the fuel economy and handling stability of vehicle, while enhancing the adaptability to different road conditions, with the advantages of simple structure, easy to process and widely used.
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