一种电动汽车传导充电回路安全接触电流测试研究  

A Study on Safe Contact Current Testing of Conduction Charging Circuit for Electric Vehicles

作　　者：王丽玲 Wang Liling(Fulongma Group Co.,Ltd.,Longyan Fujian 364028,China;Fujian Key Laboratory of Sanitation Equipment Technology and Application Research Enterprise,Longyan Fujian 364028,China)

机构地区：[1]福龙马集团股份有限公司,福建龙岩364028 [2]福建省环卫装备技术及应用研究企业重点实验室,福建龙岩364028

出　　处：《现代工业经济和信息化》2024年第11期133-136,共4页Modern Industrial Economy and Informationization

摘　　要：现有技术充电设备给纯电动汽车进行充电的过程中,充电回路中的PE线通过保护导体连接至车辆电平台,由于在充电回路中,PE线与保护导体之间会存在部分对地接触电流。同时,充电设备自身内部也会产生的接触电流,当人体接触到车辆电平台时,接地的人体会串联或并联到充电回路的PE线中,PE线上接触电流和充电桩自身产生的接触电流会流经人体,如果接触电流大于人体可承受的安全阈值时,就有电击的危险,导致发生充电安全事故。对一种电动汽车传导充电回路安全接触电流测试进行研究,为今后电动车辆在设计充电回路安全接触电流提供一种测量方法。In the process of charging pure electric vehicles by the existing charging equipment,the PE wire in the charging circuit is connected to the electric platform of the vehicle through the protection conductor,and there is a part of contact current to ground between the PE wire and the protection conductor in the charging circuit.At the same time,the charging equipment itself will also generate contact current,when the human body contacts the vehicle electric platform,the grounded human body will be connected in series or parallel to the PE wire of the charging circuit,the contact current on the PE wire and the contact current generated by the charging pile itself will flow through the human body,and if the contact current is greater than the human body's tolerable safety threshold,there will be a risk of electric shock,which will lead to charging safety accidents.An electric vehicle conductive charging circuit safety contact current test is investigated to provide a measurement method for future electric vehicles in the design of charging circuit safety contact current.

关 键 词：电动汽车 充电安全 充电回路 接触电流 PE线 

分 类 号：U469.72[机械工程—车辆工程]