电磁继电器触点材料在阻性负载下的失效退化评价研究  

Research on failure degradation evaluation of electromagneticrelay contact material under resistive loads

作　　者：李朕 王召斌[1] 刘百鑫 乔青云 陈康宁 LI Zhen;WANG Zhaobin;LIU Baixin;QIAO Qingyun;CHEN Kangning(School of Automation,Jiangsu University of Science and Technology,Zhenjiang 212100,China)

机构地区：[1]江苏科技大学自动化学院,镇江212100

出　　处：《江苏科技大学学报（自然科学版）》2023年第3期66-72,共7页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金资助项目(51507074);国防基础科研计划稳定支持专题项目(JCKYS2020604SSJS010);江苏省研究生科研与实践创新计划资助项目(KYCX21_3468,KYCX21_3478)。

摘　　要：为了准确评价AgSnO_(2)触点材料电接触性能,设计了触点材料电性能模拟实验系统,通过控制触头对的闭合分断过程来模拟直流继电器的动作过程.通过切换阻性负载进行多组平行对照实验,比较了触点材料在不同带电模式、不同开距以及不同负载电压电流等级下的退化敏感性参数的差异性,并对触点退化参数特征进行分析,完成触点熔焊失效规律的评价研究,最后在不同负载特性下对触点材料的失效影响进行了理论分析.In order to accurately evaluate the electrical contact performance of the AgSnO_(2)contact material,a simulation experiment system for the electrical performance of the contact material is designed to simulate the action process of the DC relay by controlling the closing and breaking process of the contact pair.On this basis,multiple sets of parallel control experiments are conducted by switching resistive loads,and the differences in the degradation sensitivity parameters of contact materials under different charging modes,different distances,and different load voltage and current levels are compared.Finally,the characteristics of the degradation parameters of the contact is analyzed,and the evaluation research on the law of contact welding failure completed.Since the load characteristics of electromagnetic relays are very complicated in real life,they may be composed of capacitive,inductive loads and nonlinear switches.Therefore,a brief theoretical analysis of the failure effects of contact materials under different load characteristics is carried out.

关 键 词：AgSnO_(2) 阻性负载 敏感参数 失效评价 

分 类 号：TM241[一般工业技术—材料科学与工程]