Mechanism Research and Simulation Optimization Design of Contactor Secondary Pull-in

doi:10.16628/j.cnki.2095-8188.2025.09.006

Abstract

Abstract:

To eliminate the secondary pull-in phenomenon of the contactor,combinating with the structure and principle of the contactor, the causes of its secondary pull-in phenomenon are analyzed.Using Ansys Maxwell simulation software, the suction reaction force matching relationship of the contactor is optimized.By changing the main compression spring reaction force, the overtravel compression spring reaction force and the contact overtravel, the theoretical basis for eliminating the secondary pull-in of the contactor is obtained. And the influence of the main compression spring reaction force,the overtravel compression spring reaction force and the contact overtravel on the secondary pull-in phenomenon of the contactor is verified by the grouped test.The results show that increasing the main compression spring reaction force, reducing the overtravel spring reaction force and reducing the contact overtravel can all eliminate the secondary pull-in phenomenon of the contactor.

Key words: contactor, secondary pull-in, suction reaction force, action voltage, electromagnetic force

CLC Number:

TM572

ZHU Zhengwei, WANG Jianxiong, MA Wei. Mechanism Research and Simulation Optimization Design of Contactor Secondary Pull-in[J]. LOW VOLTAGE APPARATUS, 2025, 0(9): 50-53.

主压簧反力	一次吸合电压/V	二次吸合电压/V	是否存在二次吸合
F₁	12.5~13.0	13.8~14.3	是
F₂	13.6~14.2	14.0~14.5	是
F₃	14.5~15.1	—	否

超程压簧反力	一次吸合电压/V	二次吸合电压/V	是否存在二次吸合
F_X1	12.5~13.0	13.5~14.1	是
F_X2	12.4~13.0	12.8~13.3	是
F_X3	12.5~13.2	—	否

超行程 δ/mm	一次吸合电压/V	二次吸合电压/V	是否存在二次吸合
0.5	12.4~12.9	13.3~14.0	是
0.4	12.5~13.1	12.8~13.5	是
0.3	12.5~13.0	—	否

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Mechanism Research and Simulation Optimization Design of Contactor Secondary Pull-in

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