Electrical Life Improvement of Balanced Force Relay Based on Digital Prototype Model

doi:10.16628/j.cnki.2095-8188.2026.01.004

Abstract

Abstract:

Aiming to address poor consistency and short electrical life of a 1/2 in³ balanced force relay of a manufacturer,research on improving the electrical life of balanced force relays is conducted.Firstly,the failure mechanism of products with electrical life failure is analyzed,and the root cause of relay life termination is determined through the analysis of arcing time,action process and suction-reaction force matching.Then,a digital prototype of the relay is established to realize the static characteristic simulation of suction and reaction force;on this basis,the key parameters of the electromagnetic system and contact spring system are optimized to achieve good suction-reaction force matching.Finally,high-temperature electrical life tests are conducted on the optimized relay prototypes.The test results show that the electrical life of the optimized products is effectively improved,and the optimization goal is achieved.

Key words: balance force electromagnetic relay, electrical life, simulation analysis, digital prototype model

CLC Number:

TM58

LI Xinyan, WU Jiangtao, HAN Yingzhu, LIANG Huimin, SONG Qi. Electrical Life Improvement of Balanced Force Relay Based on Digital Prototype Model[J]. LOW VOLTAGE APPARATUS, 2026, 0(1): 25-31.

Figures/Tables 15

References 20

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触点	1组	2组
静合触点	0.308	0.618
动合触点	0.344	0.596

参数	参数范围/mm	位置1的电磁吸力/N	位置2的电磁吸力/N
衔铁厚度	1.27~1.35	9.63~10.12	-0.89~1.11
小轭铁厚度	1.20~1.33	4.82~12.48	-0.93~0.90

继电器序号	静合触点		动合触点
继电器序号	1组	2组	1组	2组
1	0.24	0.30	0.27	0.23
2	0.26	0.22	0.28	0.29
3	0.35	0.25	0.28	0.22
4	0.38	0.30	0.37	0.32
5	0.31	0.30	0.29	0.26