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Factors affecting the life of pogo pin connector

time:2020-12-02 Views:178

  The pogopin connector is an electromechanical component that connects a conductor to an appropriate counterpart component to realize the circuit connection and disconnection.

Factors affecting the life of pogo pin connector(图1)

  The mechanical life of pogopin spring pin connectors refers to the plug life. The round metal plug-in charging pin connector is generally specified as about 5000 times. When the specified mechanical life is reached, the contact resistance, insulation resistance and withstand voltage of the signal pin connector cannot exceed the specified value. That is, the current mechanical life is only a vague concept. Mechanical life has a certain relationship with time, 500 times in 10 years and 500 times in 1 year. But there is no more economical and scientific method to measure it.

  The mechanical life of the pogopin connector of the installation circuit is required to select the number of contact pairs, and consider the volume of the pogopin pogopin connector and the total separation force. The larger the number of contact pairs, the larger the volume and the larger the total separation force. Under certain conditions where the reliability is high and the volume is allowed, two pairs of contact pairs can be used in parallel to improve the reliability of the connection.

  In the plug and socket of the pogopin connector, the pins (male contacts) and jacks (female contacts) are usually interchangeable. In actual use, it can be selected according to the live conditions at both ends of the plug and socket. For example, if the socket needs to be charged frequently, a socket with a jack can be selected, because the live contact of the socket is buried in the insulator, and the human body is not easy to touch the live contact, which is relatively safe.

  Consider the electrical continuity of the contact pair when the pogopin connector vibrates, impacts, and impacts under the specified frequency and acceleration conditions. The contact pair will produce instantaneous disconnection under such dynamic stress conditions. The specified instantaneous time is usually 1μs, 10μs, 100μs, 1ms and 10ms. It is worth noting how to identify the instantaneous failure of the contact pair. It is generally believed that when the voltage drop across the closed contact pair (contact) exceeds 50% of the electromotive force of the power supply, it can be judged that the closed contact pair (contact) has a fault. That is to say, there are two conditions for judging whether it is instantaneous: duration and voltage drop.