接触件材料与结构参数对电连接器插拔性能的耦合影响

打开文本图片集

中图分类号：TM503.5；TP391.99 文献标志码：B

Coupling effect of contact component material and structural parameter on plug performance of electrical connector

ZHANG Chunli， LUO Kangning， SHEN Fu， ZHANG Yuanzhi，SHANGGUAN Xiaorui

（Guizhou Space Appliance Co.，Ltd.，Guiyang 550026，China）

Abstract：To quantify the influence of structural parameters and material properties of electrical connector contacts on their plug/unplug mechanical performance，the finite element method is employed to systematically analyze the effects of contact structural parameters and material characteristics on mechanical behavior by a specific model of electrical connector as the study object. The simulation results indicate that the parameters，such as the maximum insertion force，the separation force，the maximum deformation，and the contact pressure，increase with the elastic modulus of the material. Among the materials tested，beryllium bronze yields the highest values for all parameters，followed by tin bronze， while brass exhibits relatively lower performance.Parameters，like the necking length，the groove depth， the hole diameter，and the groove width of the contact spring，allinfluence the mechanical performance of the contact pin to varying degrees，with the necking length having the most significant efect. When designing high-reliability connectors，priority should be given to controlling the material elastic modulus and necking dimensions，while parameters such as the groove width and the hole diameter can be adaptively optimized based on the specific assembly constraints.

Key words： electrical connector;contact component；reliability；mechanical property； finite element

0 引言

电连接器是实现设备间、模块间、系统级电气互连与信号传递的基本器件，应用极其普遍[1]。（剩余5797字）