电动汽车电接插件接触电阻振动特性的研究

doi:10.3901/JME.2020.11.080

机械工程学报 ›› 2020, Vol. 56 ›› Issue (11): 80-88.doi: 10.3901/JME.2020.11.080

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电动汽车电接插件接触电阻振动特性的研究

李杰浩^1,2, 王军政^1,2, 汪首坤^1,2, 高群³, 许铀³

1. 北京理工大学复杂系统智能控制与决策国家重点实验室北京 100081;
2. 北京理工大学伺服运动系统驱动与控制工信部重点实验室北京 100081;
3. 广东技术师范大学汽车与交通工程学院广州 510635

收稿日期:2019-06-28 修回日期:2020-03-27 出版日期:2020-06-05 发布日期:2020-06-12
通讯作者: 李杰浩(通信作者),男,1989年出生,博士研究生。主要研究方向为动力电源系统及机器人智能控制。E-mail:jiehao.li@bit.edu.cn
作者简介:王军政,男,1964年出生,博士,教授,博士研究生导师。主要研究方向为伺服运动驱动与控制、机器人控制和负载模拟与静动态试验。E-mail:wangjz@bit.edu.cn
基金资助:
国家自然科学基金（61773060）、广东省科技计划项目应用型重大专项（2015B010135006）和广东省青年创新人才（2017KQNCX119）资助项目。

Study on Contact Resistance Characteristics of Electrical Connectors of Power Battery Module

LI Jiehao^1,2, WANG Junzheng^1,2, WANG Shoukun^1,2, GAO Qun³, XU You³

1. Key Laboratory of Intelligent Control and Decision of Complex Systems, Beijing Institute of Technology, Beijing 100081;
2. Key Laboratory of Servo Motion System Drive and Control, Beijing Institute of Technology, Beijing 100081;
3. School of Automotive and Transportation Engineering, Guangdong Polytechnic Normal University, Guangzhou 510635

Received:2019-06-28 Revised:2020-03-27 Online:2020-06-05 Published:2020-06-12

摘要/Abstract

摘要： 电动汽车市场发展迅速，与此同时事故却频频发生，其中很大一部分原因归咎于电气设备的稳定性不足，而电接插件的安全性是电气设备稳定性的核心问题，特别是针对高电压大电流的动力电池组。针对动力电池模组内部连接的电接插件展开研究，在目前电接插件制造工艺的基础上，围绕振动工况下动力电池的电接插件的接触电阻以及接触性能一致性评估的核心技术，探索复杂振动工况下动力电池之间电接插件的接触电阻稳定性问题。首先构建面向振动工况下接触稳定性动力学模型，推导电接插件的振动与频率、幅值的关系。进一步地，设计单体电池电连接器的电阻特性测试和电池模组的接触电阻振动试验，发现了接触电阻与接触面积、振动频率的变化规律。最后，结合电动汽车对电源系统的安全需求及相关理论，提出一套高压接插件一致性评估思路，指导电接插件性能在线评估以及结构优化，为电动汽车高压电安全性提供了实际工程应用和理论指导。

关键词: 电动汽车, 动力电池模组, 电接插件, 振动工况, 接触电阻

Abstract: In recent years, the electric vehicle is developing rapidly, but the accident frequently occurred, which a large part of the reason is the insufficient stability of electrical equipment. However, the security of electrical connectors is the key to electrical equipment stability, especially for high voltage power battery packs. Based on the manufacturing process of electrical connectors, the high-voltage connectors of electrical contact are explored under the conditions of complicated working focusing on the three core technologies, including contact stress, contact resistance, and consistency evaluation. Firstly, the dynamic model of contact stability under vibration conditions is proposed, and the vibration relationship between the frequency and amplitude is studied. Furthermore, the vibration test of a single electrical connector and the battery module are carried out, which discover the contact resistance relationship between the contact area and the vibration frequency. Finally, in combination with the safety requirements and related theories of electric vehicles, an improved method of consistency evaluation for electrical connectors is proposed to guide the online performance evaluation and structure optimization and provides a viable test for improving the safety of high-voltage electric vehicles.

Key words: electric vehicle, electrical connector, contact resistance, vibration condition, consistency evaluatio

中图分类号:

TM501

李杰浩, 王军政, 汪首坤, 高群, 许铀. 电动汽车电接插件接触电阻振动特性的研究[J]. 机械工程学报, 2020, 56(11): 80-88.

LI Jiehao, WANG Junzheng, WANG Shoukun, GAO Qun, XU You. Study on Contact Resistance Characteristics of Electrical Connectors of Power Battery Module[J]. Journal of Mechanical Engineering, 2020, 56(11): 80-88.

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电动汽车电接插件接触电阻振动特性的研究

Study on Contact Resistance Characteristics of Electrical Connectors of Power Battery Module

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