Contact Degradation Mechanism and Test Study of Electrical Connector under Micropore Corrosion

Electrical connectors are widely used in various types of shipboard equipment, in the marine salt spray environment, corrosion, especially micropore corrosion of electrical connector pins is an important degradation mode of electrical connectors, and the mechanism is complex. To address this problem, we analyzed the corrosion degradation mechanism of electrical connectors in salt spray environment, established a micropore corrosion model for different locations of electrical connector pin plating layer, analyzed the mechanism of corrosion stress on the static contact resistance of electrical connectors in the plugged state from a microscopic point of view, and finally carried out salt spray corrosion tests on electrical connectors to verily the correctness of the micropore corrosion model of electrical connectors under micropore corrosion conditions and the correctness of its contact degradation mechanism.