A stress relief device

The stress relief device, with its staggered arrangement and tilted design, solves the problem of insufficient stress relief, achieving full stress relief and improved stability in the vehicle, adapting to different vehicle models, and ensuring overall vehicle performance and reliability.

CN224337652UActive Publication Date: 2026-06-09CHONGQING CHANGAN AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING CHANGAN AUTOMOBILE CO LTD
Filing Date
2025-07-28
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing stress relief devices do not release stress sufficiently, making it difficult to completely eliminate residual stress in the chassis. This affects the accuracy of four-wheel alignment testing and may even cause the alignment parameters to shift after the vehicle is driven, reducing the overall vehicle performance and reliability.

Method used

The first and second stress relief zones are staggered and their spacing is a prime number. The distance between the stress relief devices on both sides of the vehicle is different, which breaks the regular impact frequency and increases the force impact bandwidth in the time domain. The stress relief device group with inclined design and non-unidirectional arrangement enhances the fullness and stability of stress release.

Benefits of technology

It improves the adequacy and reliability of stress release, ensuring that the vehicle stress release rate is increased to 99%, while adapting to different wheelbase models and improving the overall vehicle performance and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile manufacturing discloses a stress release device, include: first stress release zone, including along the first direction interval arrangement's multiple first stress releaser, along the first direction, the interval of adjacent two first stress releasers is L1, second stress release zone, be located first stress release zone along the second direction one side, second stress release zone includes along the first direction interval arrangement's multiple second stress releaser, along the first direction, the interval of adjacent two second stress releasers is L2, in the first direction, first stress releaser and second stress releaser staggered arrangement, and L1 and L2 are prime numbers each other, first direction and second direction are perpendicular, the utility model discloses stress release device has promoted the sufficiency of stress release.
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