With the increasing demand for connector reliability in the market, the forward force parameters of connector terminals are also receiving more and more attention. The positive force of the connector mainly comes from the displacement of the terminal beam of the socket caused by the matching with the plug when the male and female connectors are inserted, and the elastic recovery force generated by this displacement is the positive force of the terminal. The forward force of a terminal is an important factor in determining its performance. Excessive positive voltage will increase terminal friction and have a negative impact on the fatigue life of the connector. A too low forward force can lead to a decrease in the contact stability of the terminal contact interface, affecting the transmission performance of the connector.
The main causes of forward force failure in connectors include permanent deformation and stress relaxation.
Permanent deformation
Permanent deformation refers to the deviation of the connector terminal beam from its original position due to plastic deformation, resulting in a decrease in forward force. This permanent deformation is usually caused by incorrect insertion and removal during use. To avoid permanent deformation, users need to plug and unplug connectors reasonably to avoid violating regulations that may affect the forward force of the connector.
Stress relaxation
Stress relaxation refers to the phenomenon where the stress on a connector decreases with time and temperature. Stress relaxation cannot be avoided and can only be controlled. The actual relaxation speed is related to the material, structure, and temperature of the application environment selected in the connector design. Therefore, reducing stress relaxation requires design improvements and technological advancements from connector manufacturers.
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