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
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.
李博, 由佳欣, 熊方圆, 谭旭, 梁慧敏. 基于分断动能的小型密封电磁继电器过负载能力提升方法[J]. 电工技术学报, 2019, 34(13): 2760-2770.
Li Bo, You Jiaxin, Xiong Fangyuan, Tan Xu, Liang Huimin. An Overload Capacity Improvement Method Based on Break Kinetic Energy For a Type of Hermetically Sealed Relay. Transactions of China Electrotechnical Society, 2019, 34(13): 2760-2770.
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