华南理工大学学报(自然科学版) ›› 2017, Vol. 45 ›› Issue (2): 1-8.doi: 10.3969/j.issn.1000-565X.2017.02.001

• 汽车工程 •    下一篇

电动汽车电池包箱体及内部结构碰撞变形与响应分析

兰凤崇 刘金 陈吉清黄培鑫   

  1. 华南理工大学 机械与汽车工程学院//广东省汽车工程重点实验室,广东 广州 510640
  • 收稿日期:2016-07-14 修回日期:2016-11-03 出版日期:2017-02-25 发布日期:2016-12-31
  • 通信作者: 陈吉清( 1966-) ,女,教授,博士生导师,主要从事车身结构及安全研究. E-mail:chjq@scut.edu.cn
  • 作者简介:兰凤崇( 1959-) ,男,教授,博士生导师,主要从事车身结构及安全研究. E-mail: fclan@ scut. edu. cn
  • 基金资助:

    广东省科技计划项目( 2014B010106002, 2014B010125001, 2015B010137002, 2016A050503021)

Deformation and Response Analysis of Pack and Internal Structure of Electrical Vehicle Battery in Collision

LAN Feng-chong LIU Jin CHEN Ji-qing HUANG Pei-xin   

  1. School of Mechanical and Automotive Engineering//Guangdong Provincial Key Laboratory of Automotive Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2016-07-14 Revised:2016-11-03 Online:2017-02-25 Published:2016-12-31
  • Contact: 陈吉清( 1966-) ,女,教授,博士生导师,主要从事车身结构及安全研究. E-mail:chjq@scut.edu.cn
  • About author:兰凤崇( 1959-) ,男,教授,博士生导师,主要从事车身结构及安全研究. E-mail: fclan@ scut. edu. cn
  • Supported by:
    Supported by the Science and Technology Planning Project of Guangdong Province ( 2014B010106002,2014B010125001, 2015B010137002, 2016A050503021)

摘要: 目前关于电池包碰撞安全性问题研究较少,且大多的关注点在于电池包箱体及电池包安装位置,无法清楚地了解电池包内部的安全性. 针对这一问题,文中结合一款实例电池包的开发,建立了考虑电池包内部电池单体、触点、固定装置以及电池包内架等的精细化结构模型,从变形量和加速度两个角度、电池包整体和内部结构两个层面对电池包碰撞结果进行分析,探讨了电池包在碰撞过程中箱体及内部结构的变形与响应规律。结果表明,电池包撞击侧吊耳、内架、螺钉和电池模组均发生了不同程度的变形,电池触点及附属构件安装点处加速度峰值过大.

关键词: 电动汽车, 电池包, 精细化模型, 碰撞, 变形, 响应规律

Abstract:

There are few researches on the collision safety of battery pack,and most of the researches emphasize on the battery box and its installation location instead of the internal security of the battery pack.In order to solve this problem,a refined model of battery pack,which takes into consideration the cell,the cell contact,the fixed structure and the inner shelf,was proposed,with an actual battery pack being used as the example.Then,by analyzing the collision results of battery pack and its internal structure in the aspects of deformation and acceleration,the deformation and response law of the battery box and the internal structure during the collision were investigated.The results indicate that the lifting lug near the impact position,the internal shelf,the bolt and the battery modules all deform in different degrees; and that,after the collision,the acceleration magnitudes are excessive at the cell contact and the installation point of attached components.

Key words: electrical vehicle, battery pack, refined model, collision, deformation, response law