Analysis of insertion force of electric connector based on FEM

The paper investigates the insertion force and contact reliability of N electric connector. A finite element model (FEM) of the contacts was created and simulation of the contact force was completed by ANSYS. Impact of the friction coefficient, shrink range, length of socket, and groove width on the insertion force was analyzed by changing the structural parameters. Variation curves of the insertion force for different structural parameters were studied. Simulation results showed that the shrink range and length of socket have a great influence on the insertion force. In contrast, the friction coefficient and groove width have a much smaller effect on the contact resistance of N electric connector. The optimized connector structure reduces the contact resistance and improves the contact reliability.