基于数字样机模型的平衡力式继电器电寿命提升
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关键词：平衡力式电磁继电器；电寿命；仿真分析；数字样机模型中图分类号：TM58 文献标志码：A 文章编号：2095-8188（2026）01-0025-07DOI：10.16628/j.cnki.2095-8188.2026.01.004
Electrical Life Improvement of Balanced Force Relay Based on Digital Prototype Model
LI Xinyan’， WU Jiangtao²， HAN Yingzhu’， LIANG Huimin’， SONG Q i2 （1.Harbin Institute of Technology，Harbin 150001，China;2.ShaanxiQunliElectricCo.，Ltd.，Baoji，China）
Abstract：Aiming to address poor consistency and short electrical life of a1/2 in 3 balanced force relay of a manufacturer，researchonimproving theelectrical lifeofbalanced forcerelaysisconducted.Firstly，thefailure mechanismofproductswithelectricallife failureisanalyzed，andtherootcauseofrelaylife terminationis determined through theanalysis of arcing time，action process and suction-reaction force matching.Then，a digital prototypeof therelayis established torealize thestatic characteristic simulationof suctionandreaction force;on his basis，the key parameters of the electromagnetic system and contact spring system are optimized to achieve good suction-reactionforce matching.Finaly，high-temperatureelectrical life testsare conductedontheoptimizedrelay prototypes.The testresultsshow thattheelectrical lifeof theoptimizedproductsisefectivelyimproved，and the optimization goal is achieved.
Key words： balance force electromagnetic relay； electrical life; simulation analysis； digital prototypemodel
0 引言
1958年我国建立了第一个继电器专业生产厂，历经六十多年的发展，虽已形成了产品门类齐全、品种基本配套的产业格局[1-2]，但成熟、完整的继电器配套技术与批量设计规范仍推进缓慢[34]产品在稳健性与一致性方面有待进一步提升[5]
1/2in （ 1in3≈16.387cm3 平衡力式继电器，因其灵敏度高、抗干扰能力强、物理隔离性强、功耗低及体积小[，在军事及航天方面（如“长征”系列运载火箭、“神舟”系列载人飞船等）得到广泛的应用[7-10]。（剩余7770字）
