直流接触器调试参数对触头分断速度与回弹影响的试验研究  

Experimental Study on Influence of Test Parameters of DC Contactor on Breaking Speed and Rebound of Contact

作　　者：刘德龙 周学[1] 梁慧敏[1] 翟国富[1] 陈树清 蔡昭文 LIU Delong;ZHOU Xue;LIANG Huimin;ZHAI Guofu;CHEN Shuqing;CAI Zhaowen(School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China;Guilin Aerospace Electronics Co.,Ltd.,Guilin 541000,China)

机构地区：[1]哈尔滨工业大学电气工程及其自动化学院,黑龙江哈尔滨150001 [2]桂林航天电子有限公司,广西桂林541000

出　　处：《电器与能效管理技术》2018年第5期1-6,共6页Electrical & Energy Management Technology

摘　　要：触头超程与超程弹簧预压力是接触器的重要调试参数,会对触头分断速度与回弹产生影响。基于实际产品的电磁机构搭建动态特性试验系统,实现对触头超程和超程弹簧预压力的调节以及对触头分断速度与位移的测量。通过试验研究触头超程和超程弹簧预压力对分断速度以及回弹的影响;基于电磁机构有限元仿真,通过静态吸反力特性配合以及能量转换原理对试验结果进行分析与解释,为进一步减小回弹量给出改进方向。最后,在考虑回弹的基础上,根据触头分断速度确定合适的触头超程和超程弹簧预压力参数,为产品调试参数的确定提供依据。The contact over-travel and the pre-pressure of over-travel spring are important debugging parameters of the contactor,which can affect the breaking speed and rebound of the contact.The dynamic characteristic experiment system based on the real product’s electromagnetic mechanism was set up and can realize the adjustment of the over-travel and pre-pressure,as well as the measurement of the breaking speed and displacement of contact.The influence of over-travel and pre-pressure on the breaking speed and rebound was studied experimentally.The experimental results were explained by the principle of static electromagnetic attractive force and spring force characteristics and energy conversion,and the improvement direction was given for further reduction of rebound.Finally,considering the rebound,the appropriate pre-pressure and over-travel parameters were determined according to the contact breaking speed.The research will help the contactor manufacturers to determine the product debugging parameters.

关 键 词：直流接触器 触头超程 试验 电磁机构 预压力 分断速度 电寿命 

分 类 号：TM572.1[电气工程—电器]