电池箱体总成和电池

By optimizing the design of the support beam assembly and energy-absorbing components, the problems of excessive weight and low energy density of the power battery box were solved, achieving a battery box structure that balances lightweight and strength.

CN119419434BActive Publication Date: 2026-07-17DONGFENG MOTOR CO LTD DONGFENG NISSAN PASSENGER VEHICLE CO

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGFENG MOTOR CO LTD DONGFENG NISSAN PASSENGER VEHICLE CO
Filing Date
2024-11-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

To meet the requirements of collision and compression conditions, existing power battery boxes adopt multiple crossbeams and high-strength box structures, which leads to problems such as excessive box weight and reduced battery energy density.

Method used

The support beam assembly consists of a front crossbeam, a rear crossbeam, and longitudinal beams. Combined with energy-absorbing components and mounting components within the buffer space, the frame structure is optimized to achieve lightweighting while meeting collision requirements.

Benefits of technology

While ensuring the strength of the battery box, the design of the support beam assembly and energy-absorbing components has achieved lightweighting of the battery box and improved energy density, thus meeting the collision requirements.

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Abstract

本申请公开了一种电池箱体总成和电池,电池箱体总成包括箱体底板和安装在箱体底板上的框体,框体上安装有支撑梁组件和若干个搭载件;框体包括相对设置的前边梁和后边梁,以及两块连接前边梁和后边梁的侧边梁。本申请中框体内的支撑梁由前横梁、后横梁和至少一根纵梁构成,前横梁安装在框体内靠近前边梁的一端,后横梁安装在框体内靠近后边梁的一端,其中纵梁连接在前横梁和后横梁之间,保证了电池包箱体前后方向和前后端的左右方向的强度;另外每块侧边梁的外侧间隔连接有若干个搭载件,当电池的左右方向受到碰撞时,搭载件溃缩变形进行吸能,使得电池箱体满足碰撞需求,同时整体结构简单,满足了箱体的轻量化需求。
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