Battery pack box body frame structure

By configuring vertical and horizontal plates in the battery pack frame components to form a T-shaped or bent structure, the problem of insufficient strength of steel frames is solved, achieving high strength and low-cost production of the frame. It is suitable for frame components of various sizes and protects the internal structure of the battery pack.

CN224288421UActive Publication Date: 2026-05-26HEFEI GUOXUAN HIGH TECH POWER ENERGY
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Patent Information

Application Number
CN202520916654.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-09
Publication Date
2026-05-26
Estimated Expiration
2035-05-09

AI Technical Summary

Technical Problem

The existing steel battery pack housings for new energy vehicles lack sufficient rigidity and strength, making it difficult to meet the requirements of complex structures, and are also costly.

Method used

Reinforcing components, including vertical and horizontal members, are arranged within the hollow space of the frame members and connected by welding or plug welding to form a T-shaped or bent structure to enhance the strength and rigidity of the frame.

Benefits of technology

It improves the overall strength and fatigue resistance of the frame, reduces production costs, and is suitable for frame components of various sizes without the need for new molds, thus enhancing the protection of the battery pack.

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Abstract

The utility model belongs to the technical field of battery pack box body structures, and discloses a battery pack box body frame structure which comprises a frame component and a reinforcing component consisting of a vertical plate component and a transverse plate component. Through the arrangement of the vertical plate component, the thickness of the second side edge can be increased, that is, the wall thickness of the side frame of the lifting lug is increased, the fatigue damage of a steel material of the second side edge is reduced, and the vertical plate component plays a positive optimization role in the aspects of airtightness, damage and stress of the frame component; the strength of the interior of the frame component in the width direction can be enhanced, and when the battery pack is subjected to extrusion, column collision and other working conditions, large damage resisting capacity can be provided, so that the internal structure of the battery pack is protected.
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