电连接器接触压力过大或过小都将导致不易插拔或接触电阻过大，最终导致接 触失效． 为了提高电连接器的接触可靠性，对一种电连接器接触件的插拔特性和温升特性 进行了研究． 采用ABAQUS 软件对接触件进行了插拔力与温升仿真，研究了接触件结构 参数弹舌倾角α 和弹舌支撑间隙δ 对插拔力的影响以及导线截面积S 和电流对温升的影 响，并通过实验研究了插拔力和温升的变化情况． 结果表明: 当δ = 0． 12 mm 时，插拔力随 α 的增大而增大; 当δ = 0． 18mm 时，插拔力随α 增大先增大后减小; α 一定时，插拔力随δ 增大而逐渐较小; 接触件温升随电流的增大而增大，随导线截面积增大而减小． 实验得到 的插拔力和温升结果与仿真结果吻合． 综合考虑插拔与温升，产品最优参数为间隙弹舌支 撑δ = 0． 12mm、弹舌倾角α = 15°．

Excessive or inadequate contact force of electrical connector may result in unsmooth insertion-extraction and excessive contact resistance and further cause contact failure.In order to improve the contact reliability of electrical connectors,the insertion-extraction and temperature rise properties of an electrical connector were discussed.In the investigation,first,the insertion-extraction force and temperature rise of the contactor were simulated by using ABAQUS.Then,the effect of clearance between spring and support frame δ and angle of spring tongue α on the insertion-extraction force,as well as the influence of wire's cross-sectional area S and current on the temperature rise were revealed.Finally,the variations of insertion-extraction force and temperature rise were measured by experiments.The results show that ( 1) when δ = 0. 12mm,the insertion-extraction force increases with the increase of α; while when δ = 0. 18mm,the insertion-extraction force first increases and then decreases with the increase of α; ( 2) when α is constant,the insertion-extraction force decreases with the increase of δ; ( 3) the temperature rise of the contactor increases with the increase of current,but decreases with the increase of wire's cross-sectional area; and ( 4) the insertion-extraction force and temperature rise obtained by experiments are consistent with those obtained by simulation.Comprehensively considering the insertion-extraction force and temperature rise,the optimal parameters for the connector are suggested as δ = 0. 12mm and α = 15°.