小型继电器触点粘接失效现象的复现与失效机理

doi:10.16628/j.cnki.2095-8188.2021.10.009

电器与能效管理技术 ›› 2021, Vol. 0 ›› Issue (10): 52-56.doi: 10.16628/j.cnki.2095-8188.2021.10.009

小型继电器触点粘接失效现象的复现与失效机理

张旭¹, 郑哲¹, 罗福彪², 周哲峰², 任万滨¹

1.哈尔滨工业大学电气工程及自动化学院, 黑龙江哈尔滨 150001
2.桂林航天电子有限公司, 广西桂林 541002

收稿日期:2021-06-11 出版日期:2021-10-30 发布日期:2022-01-25
作者简介:张旭(1992—),男,博士研究生,研究方向为电器开关触点熔焊失效分析。|郑哲(1997—),男,博士研究生,研究方向为电器开关电寿命失效机理分析。|罗福彪(1975—),男,研究员,主要从事航天继电器设计与质量保证研究。
基金资助:
国家自然科学基金项目(51777039)

Reoccurrence of Contact Welding Failure Phenomenon and Failure Mechanism of Miniature Relay

ZHANG Xu¹, ZHENG Zhe¹, LUO Fubiao², ZHOU Zhefeng², REN Wanbin¹

1. School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China
2. G&A Electronics Co.,Ltd.,Guilin 541002,China

Received:2021-06-11 Online:2021-10-30 Published:2022-01-25

摘要/Abstract

摘要：

小型继电器的触点粘接失效是制约其长寿命、高可靠发展的关键问题。通过实验装置,实现了小型继电器的触点分/合电性能模拟,通过分析燃弧时间、分断时间、接触电阻、回跳能量参数随动作次数的变化规律,发现了触点粘接失效前的敏感参数退化特征,获得了触点粘接失效后的微观形貌特征。最后,提出了触点粘接失效的机理。

关键词: 小型继电器, 电接触, 触点熔焊, 分断时间, 失效机理

Abstract:

Contact welding failure extremely limits the development trend of miniature relay with long life and high reliability.A special designed test rig is used for the simulation of the electrical performance of contact break and make behavior according to the operation features of miniature relay.The variation in sensitive parameters,including arcing duration,breakaway time,contact resistance and bounce energy,as a function of operation cycles it presented.The precursors of contact welding failure phenomenon are determined.The eroded surface morphologies of failed contacts are obtained.Finally,the contact welding failure mechanism of miniature relay is presented.

Key words: miniature relay, electrical contact, contact welding, breakaway time, failure mechanism

中图分类号:

TM581

张旭, 郑哲, 罗福彪, 周哲峰, 任万滨. 小型继电器触点粘接失效现象的复现与失效机理[J]. 电器与能效管理技术, 2021, 0(10): 52-56.

ZHANG Xu, ZHENG Zhe, LUO Fubiao, ZHOU Zhefeng, REN Wanbin. Reoccurrence of Contact Welding Failure Phenomenon and Failure Mechanism of Miniature Relay[J]. LOW VOLTAGE APPARATUS, 2021, 0(10): 52-56.

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小型继电器触点粘接失效现象的复现与失效机理

Reoccurrence of Contact Welding Failure Phenomenon and Failure Mechanism of Miniature Relay

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