复合能源电动汽车直流变换器电磁屏蔽优化  

Electromagnetic shielding optimization of DC/DC converter for hybrid electro-automobile

作　　者：张彦会[1] 史维玮 何维[2] 

机构地区：[1]广西科技大学广西汽车零部件与整车技术重点实验室,广西柳州545006 [2]广西科技大学汽车与交通学院,广西柳州545006

出　　处：《辽宁工程技术大学学报（自然科学版）》2014年第11期1539-1544,共6页Journal of Liaoning Technical University (Natural Science)

基　　金：广西工学院博士基金资助项目(院科博09305);广西自然科学基金资助项目(2011GXNSFA018033)

摘　　要：为了改善复合能源电动汽车电气设备工作时的电磁环境,降低直流变换器高频率开关管产生的强电磁干扰,提高整车电磁兼容特性,采用理论分析和仿真运算的方法,分析了直流变换器箱体模型特点、孔洞天线效应及表面屏蔽效能,优化了屏蔽箱体孔缝接口连接器及其布局方法,仿真验证了改进后的箱体屏蔽效果。结果表明:弯折的接口连接器引脚阵和交错布置方法降低了箱体对外的电磁干扰.研究结论为改善直流变换器箱体电磁兼容性提供了一种有效的实施方法,并提供了理论支持.In order to improve the hybrid electro-automobile＇s electromagnetic environment, reduce the hash electromagnetic interference（EMI） which generated by working switches in high frequency and increase the vehicle＇s electromagnetic compatibility（EMC）, this paper took theoretical analysis and simulation method by analyzing the feature of DC/DC converter＇s model, antenna effect of holes and shielding effective of surface, optimizing the port connector＇s pin array and their layout, simulating improved model＇s shielding effect to achieve the goal. The result indicate that curved pin array and stagger layout can reduce the electromagnetic interference. The research gives the theoretical support and an efficient implement method to improve the DC/DC converter＇s electromagnetic compatibility.

关 键 词：直流变换器 电磁干扰 电磁兼容 电磁屏蔽 接口连接器 引脚天线 孔阵布局 

分 类 号：TM464[电气工程—电器]