Research On Connector’s Mating And Unmating Force And Current-Carrying Features Based On The Finite Element Simulation

As one important basic component of electronic equipment, Connector is widely used in household appliances, IT, industrial, automotive, aerospace and other devices. Study and improving the performance of the connector, has a vital role for better performance and reliability of the whole system. Insertion force and load flow characteristic is two main basic performance of the power connector, based on one type power connector this paper conducts theoretical study and simulation analysis, in the occasion of its too large insert force and not enough current-carrying performance, and the optimization scheme which is verified is put forward; Paper’s main work is as follows:The theory of connector mating and unmating force and current-carrying features mainly involves tribology and heat transfer, Including the metal surface contact, friction mechanism, theory, heat transfer theory, theory of thermoelectric effect and thermal design, etc. Through theoretical analyses of the influence factors of the connector, the paper puts forward the feasible optimization scheme.The entity model is conducted based on the power connector parameters such as structure, material and load, and its simulation analysis is based on ANSYS Workbench software. Firstly through the simulation of the connector plug situation, the stress and strain contours in the process of the plug and dynamic insertion force are got; Then through the connector plug contact analysis simulating match after form, the contact area’s the stress and strain is got, at the same time it can be concluded that the connector shell part deformation and displacement; then the assembly model is set up; Finally using thermoelectric coupling module equipped with radiator connector for thermal simulation, the connector’s distribution of temperature and heat flux distribution is obtained under a certain load; Ultimately exert different load current temperature rise curve is obtained.Respectively the mating and unmating forceand load flow characteristics of the connector is optimized. In the case of too large insertion force, through changing the structure of the shrapnel and plug part, decreasing interference assembly, increasing lubrication, the maximum insertion force is reduced. To promote connector current-carrying features, namely to reduce temperature rise, from the lower resistance of the connector body for reducingheat and optimizing the radiator heat dissipation is optimized in the two inspects. Through the simulation and analysis of the optimization scheme of repeated, the optimal design scheme is obtained based comparing the results.Finally,the full text of the research contents and conclusions is summarized, and the content of the comprehensive analysis for further study of the connector’s mating and unmating force and current-carrying features is put forward.