电连接器接触件的插拔和温升特性

发布时间：2019-02-17 13:31

【摘要】：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=0.18 mm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=0.12 mm、弹舌倾角α=15°.
[Abstract]:Too large contact pressure or too small contact pressure of electrical connectors will lead to difficult to plug or too large contact resistance, and eventually lead to contact failure. In order to improve the contact reliability of an electrical connector, the plugging characteristics and temperature rise characteristics of an electrical connector contact are studied. ABAQUS software was used to simulate the insertion force and temperature rise of the contact parts. The effects of the structure parameters of the contacts on the insertion force and the temperature rise were studied, including the angle 伪 of the projectile tongue and the gap 未 between the projectile and the tongue support, as well as the influence of the traverse cross section S and the current on the temperature rise. The change of insertion force and temperature rise was studied by experiment. The results show that when 未 = 0.12 mm, the insertion force increases with the increase of 伪, when 未 = 0.18 mm, the insertion force increases first and then decreases with the increase of 伪. The temperature rise of the contact increases with the increase of the current and decreases with the increase of the cross-sectional area of the conductor. The experimental results of insertion force and temperature rise are in agreement with the simulation results. Considering the insertion and temperature rise, the optimum parameters of the product are as follows: the gap tongue support 未 = 0.12 mm, projectile angle 伪 = 15 掳.
【作者单位】：郑州大学机械工程学院∥抗疲劳制造技术河南省工程实验室;华南理工大学表面功能结构先进制造广东普通高校重点实验室;
【基金】：国家自然科学基金资助项目(51305408) 河南省高等学校重点科研项目(15A460029) 中国博士后科学基金资助项目(2015M582199) 郑州大学青年骨干教师资助计划项目~~
【分类号】：TM503.5

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