摘要
电连接器是变流器系统正常工作的关键接口元件,为提高电连接器的接触可靠性,针对常用的片簧式接触件进行了结构力学分析与插拔过程仿真,得到了重载连接器圆形直槽接触件接触力和应力分布情况。通过4种不同结构和镀层的接触件单脚分离力、接触电阻及镀层厚度测试,量化对比分析了其接触性能,并将仿真所得接触力与理论计算值和实测值进行对比,验证了仿真计算方法的可行性。同时,在试验中探讨了2种品牌欧式连接器的振动可靠性,得出了对称方形片簧接触件的振动薄弱方向。
Electrical connector is a key interface element for the converter system to run well. To improve the contact reliability of the electrical connectors, structural mechanics analysis and mating process simulation for common spring contact were implemented. The contact force and the stress distribution of female cylindrical contact in the heavy load connector were obtained. Three essential tests were carried out on four kinds of contacts with different structures and metal finishes to figure out the quantitative differences in their contact performance. The results of contact force were compared from numerical simulation, theoretical calculation and experimental test, which verified the feasibility of the simulation method. The vibration reliability of European connectors manufactured by distinct companies was discussed by experiment, and the weak direction of the symmetrical spring contact under vibration was pointed out.
出处
《机车电传动》
北大核心
2018年第1期17-21,26,共6页
Electric Drive for Locomotives
关键词
变流器
电连接器
片簧式接触件
仿真
振动试验
可靠性
converter
electrical connector
spring contact
simulation
vibration test
reliability
