Transactions of China Electrotechnical Society  2019, Vol. 34 Issue (13): 2760-2770    DOI: 10.19595/j.cnki.1000-6753.tces.L80341
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An Overload Capacity Improvement Method Based on Break Kinetic Energy For a Type of Hermetically Sealed Relay
Li Bo1, You Jiaxin1, Xiong Fangyuan1, Tan Xu2, Liang Huimin1
1. Institute of Reliability in Electrical Apparatus and Electronics Harbin Institute of TechnologyHarbin 150001 China;
2.Shaan Xi Qunli Electric Co. Ltd Baoji 721000 China

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Abstract  As one of the important components of the electronic systems, the requirements for the overload capacity of the small hermetically sealed relay (SHSR) is risingwith the development of the multi-application in aerospace field. The experiments for SHSR based on GJB65B is carried out, and the arc and dynamic characteristic is analyzed firstly. There exist some disadvantages for the improvement using the force-velocity improve method: anti-vibration performance decrease, operate voltage rise and so on. In order to solve these shortcomings, a novel break kinetic energy method (BKEM) idea is presented in this paper to improve the overload capacity of SHSR. The BKEM is established, and the new structure of the spring and the contact system of the relay have been improved according to this method. The FEM model for electromagnetic system and the dynamic model for contact system are built, then simulate the effect for the improved design, therefore carry out the comprehensive improvement of the resisting surge capacity. Overload tests are carried out to examine the correctness of this method in practice. Compared with the original design of the SHSR, the validity of the BKEM method for resisting surge performance improvement has been verified.
Key wordsSmall hermetically sealed relay(SHSR)      overload test      dynamic characteristic      breaking speed      break kinetic energy     
Received: 01 July 2018      Published: 17 July 2019
PACS: TM581.3  
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Li Bo
You Jiaxin
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Liang Huimin
Cite this article:   
Li Bo,You Jiaxin,Xiong Fangyuan等. An Overload Capacity Improvement Method Based on Break Kinetic Energy For a Type of Hermetically Sealed Relay[J]. Transactions of China Electrotechnical Society, 2019, 34(13): 2760-2770.
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