In industrial production and daily life, electronic connectors are the focus of equipment circuits, and their reliability is directly related to the overall production efficiency and people's life safety. Therefore, the analysis and research of its reliability and instantaneous interruption detection is the focus of the purchaser.
During the use of the connector, if there is vibration, impact, collision, etc., which affects the electrical continuity of the contact pair, it is prone to instantaneous disconnection. The specified transient time is generally 1μs, 10μs, 100μs, 1ms and 10ms. The thing to pay attention to is how to judge the momentary failure of the contact pair. It is now generally believed that when the voltage drop across the closed contact pair (contacts) exceeds 50% of the power supply electromotive force, it can be determined that the closed contact pair (contacts) fails. That is to say, there are two conditions for judging whether an instantaneous interruption occurs: duration and voltage drop, both of which are indispensable. In order to ensure the safety of use, many industries have put forward requirements for the instantaneous disconnection performance of connectors. For example, automotive connectors clearly require instantaneous disconnection measurement. During the test, the time that the terminal connection resistance is required to be continuously greater than 7Ω should not exceed 1. us.
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