Investigation on failure mechanism of electrical connectors under repetitive mechanical insertion and withdrawal operations
Open Access
- 1 November 2021
- journal article
- Published by IOP Publishing in IOP Conference Series: Materials Science and Engineering
- Vol. 1207 (1)
- https://doi.org/10.1088/1757-899x/1207/1/012011
Abstract
Electrical connector is an essential accessory component for electrical and electronic interconnection circuit. In order to investigate the degradation behavior of electrical connector, a series of repetitive mechanical insertion and withdrawal operations of electrical connector have been carried out. The results indicate that there is an increasing trend in insertion/extraction force in the initial stage. Afterwards, it becomes a gradually decreasing trend attributed to the mechanical wear of the contact components. In addition, the oxidative wear of substrate copper alloy material causes the fluctuation phenomenon of contact resistance. The relevant mathematic models for insertion/extraction force and contact resistance calculation are presented to research the dynamic insertion/extraction process. Finally, the degradation behavior and associated physical mechanisms are proposed by analysing the laser confocal photographs and parameter waveforms comparison.This publication has 4 references indexed in Scilit:
- Electrical Contact Resistance of Connector Response to Mechanical Vibration EnvironmentIEEE Transactions on Components, Packaging and Manufacturing Technology, 2019
- Effects of temperature on fretting corrosion behaviors of gold-plated copper alloy electrical contactsTribology International, 2015
- Experimental and Analytical Studies of the Connector Insertion PhaseIEEE Transactions on Components and Packaging Technologies, 2008
- Degradation of road tested automotive connectorsIEEE Transactions on Components and Packaging Technologies, 2000