Research on Mechanism of Stability Time of Aerospace Relays

doi:10.16628/j.cnki.2095-8188.2023.12.007

LOW VOLTAGE APPARATUS ›› 2023, Vol. 0 ›› Issue (12): 48-52.doi: 10.16628/j.cnki.2095-8188.2023.12.007

• Electrical Design & Discussion • Previous Articles Next Articles

Research on Mechanism of Stability Time of Aerospace Relays

SHI Lei, LIN Wenhai, TIAN Jiaxin, XIAO Huayu

Guizhou Zhenhua Qunying Electrical Appliances Co., Ltd., Guiyang 550018,China

Received:2023-09-21 Online:2023-12-30 Published:2024-01-11
Contact: LIN Wenhai,TIAN Jiaxin

Abstract

Abstract:

A method for controlling the stability time of aerospace relays is proposed to meet with the added the testing requirements for a failure rate level of M aerospace relays contact stability time compared to the ordinary relays.The main factors affecting contact stability time are studied.The effects of test load, contact cleanliness, and other factors on contact stability time is verified by the experimental data.

Key words: aerospace relays, stability time, bounce time, test load

CLC Number:

TM581

SHI Lei, LIN Wenhai, TIAN Jiaxin, XIAO Huayu. Research on Mechanism of Stability Time of Aerospace Relays[J]. LOW VOLTAGE APPARATUS, 2023, 0(12): 48-52.

编号	稳定时间1/ms (50 mV、50 mA)		稳定时间2/ms (28 V、100 mA)		回跳时间/ms (6 V、10 mA)		接触电阻/ mΩ		触点静压力/ mN
编号	左组	右组	左组	右组	左组	右组	左组	右组	左组	右组
1#	1.5	5.9	1.4	0.7	0.7	0.3	71.4	75.6	23	24
2#	2.2	0.3	2.2	0.2	0.6	0.0	74.2	71.7	25	28
3#	1.3	2.5	0.6	1.4	0.3	0.6	70.4	72.2	26	24
4#	4.0	1.4	1.5	1.5	0.4	0.8	68.2	67.1	24	23
5#	0.9	2.0	0.7	0.8	0.3	0.5	72.1	73.5	28	25
6#	2.3	1.1	1.3	1.6	0.8	0.8	70.2	71.1	25	25
7#	2.6	1.3	1.6	1.2	0.8	0.5	68.0	71.6	24	25
8#	1.4	2.7	1.0	1.6	0.6	0.8	75.3	69.9	24	24
9#	0.9	8.8	1.0	0.8	0.3	0.5	69.3	102.8	26	25
10#	2.0	1.1	1.2	0.9	0.7	0.4	67.5	70.0	23	24

参数	清洗前	清洗后
回跳时间相关系数	0.031	0.783
稳定时间均值/ms	2.31	0.78

参数	方案A	方案B	方案C
粗糙度(Sa)/μm	0.121	0.121	0.010
硬度(Hv)	170	130	170

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Research on Mechanism of Stability Time of Aerospace Relays

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