接地板法测试高压连接系统的屏蔽效能  

Grounding Plate Test Method for Shielding Effectiveness of High Voltage Connection System

作　　者：贾晋 周航 杨明杰 赵鹤鸣 龙云 曾丞 吴小珊 李旭 Jia Jin;Zhou Hang;Yang Mingjie

机构地区：[1]重庆理工大学汽车零部件先进制造技术教育部重点实验室 [2]重庆清研理工汽车智能技术研究院有限公司 [3]重庆大学 [4]深圳一诺维新科技有限公司 [5]重庆清研理工电子技术有限公司

出　　处：《安全与电磁兼容》2022年第6期67-71,共5页Safety & EMC

基　　金：重庆理工大学科研启动基金资助项目。

摘　　要：新能源汽车高压连接系统的屏蔽效能直接关系整车的电磁兼容性能。屏蔽效能测试常用的三同轴法设备成本较高、操作流程繁杂、截止频率低。基于接地回路的屏蔽效能简易测试方法——接地板法,用接地板代替三同轴法的空心圆柱体或立方体,适用于不同尺寸的高压连接器,避免了三同轴法测试高压连接系统要更换测试夹具的缺陷。高压连接系统的屏蔽效能对比测试表明,接地板法能大大提高测试的截止频率,测试成本低、测试结果正确,具有很好的工程价值。The shielding effectiveness of the high voltage connection system of new energy vehicles is directly related to the electromagnetic compatibility performance of the whole vehicle.The triaxial method equipment commonly used in shielding effectiveness testing is more expensive,complicated in operation and low in cut-off frequency.The simple test method of shielding effectiveness based on the grounding circuit-the grounding plate method,the hollow cylinder or cube of the triaxial method is replaced by the grounding plate,which is suitable for high voltage connectors of different sizes,avoiding the defects of the triaxial method to replace the test fixture of the high voltage connection system.The comparison test of the shielding effectiveness of the high voltage connection system shows that the grounding plate method can greatly improve the cut-off frequency of the test,the test cost is low,the test results are correct,and it has good engineering value.

关 键 词：高压连接系统 屏蔽效能 接地板法 测试夹具 

分 类 号：U469.7[机械工程—车辆工程] U463.6[交通运输工程—载运工具运用工程] TN03[交通运输工程—道路与铁道工程]