Lower body frame assembly and vehicle

By integrating the footrest and rear crossbeam into the vehicle's lower body frame assembly and increasing the thickness of the rear torsion box, the problem of insufficient overall integrity of the lower body frame assembly under impact was solved, resulting in stronger impact resistance and structural stability.

CN116946263BActive Publication Date: 2026-06-09BEIJING CHEHEJIA AUTOMOBILE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING CHEHEJIA AUTOMOBILE TECH CO LTD
Filing Date
2022-04-17
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing vehicle lower body frame assembly has weak integrity when subjected to impact, is prone to deformation, and has insufficient safety performance.

Method used

A lower body frame assembly was designed, in which the footrest and rear crossbeam are integrally formed with the frame body. The thickness of the rear torsion box is increased to enhance the ability to resist stress, and the overall strength is improved by the integrally formed structure, including the slide box, the front torsion box and the connecting structure to better withstand impact forces.

Benefits of technology

It improves the impact resistance of the lower body frame assembly under frontal, side and rear collisions, improves deformation, and enhances the safety performance and structural stability of the vehicle body.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN116946263B_ABST
    Figure CN116946263B_ABST
Patent Text Reader

Abstract

The embodiment of the present application provides a lower vehicle body frame assembly and a vehicle, the lower vehicle body frame assembly is used for the vehicle, and the lower vehicle body frame assembly comprises a frame body, a footrest connected to one side of the frame body, and a rear cross beam connected to the side of the frame body far from the footrest, wherein the frame body, the footrest and the rear cross beam are integrally formed. In the present application, when the frame body resists external impact force, the footrest and the rear cross beam can assist the frame body to resist a certain impact force, the ability of the lower vehicle body frame assembly to resist impact force can be improved, the overall deformation of the front floor can be improved, and the safety of the lower vehicle body frame assembly can be improved.
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