Finite element thermal analysis and plugging test of the high temperature electrical connector

doi:10.3785/j.issn. 1006-754X.2015.03.008

Chinese Journal of Engineering Design

2015, Vol. 22

Issue (3): 250-255 DOI: 10.3785/j.issn. 1006-754X.2015.03.008

Finite element thermal analysis and plugging test of the high temperature electrical connector

XU Cheng-bin¹，PAN Jun¹，CHEN Wen-hua¹，HE Qing-chuan¹，ZHANG Li-bin²，LIANG Jun²

1.Key Laboratory of Reliability Technology for Mechanical and Electrical Product of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China;2.The ninth Research Institute and 825 Factory,China Aerospace Science and Technology Corporation, Hangzhou 310051, China

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Abstract To solve the problem of whether the high temperature electrical connector could keep the contacts contacting-reliable within the specified time under high temperature environment, the 3D simulation model was created. Using finite element analysis software analyzed the connector's transient thermal performance of pin and socket contact parts under different temperature stages. Using the electromagnetic heating device to tested and verified the accuracy of the result of finite element. On the basis of this, considering the randomness of the parameters' performance, six Sigma standard and Latin hypercube sampling method were used to get that the contact temperature obeyed normal distribution. Based on the test of contact parts' insertion force in different temperature, the relationship between the stable value of contact part insertion force and the temperature, and the threshold temperature which met the need of work requirement were got. Finally, the high temperature electrical connector's contact reliability was calculated.

Key words： high temperature electrical connector finite element thermal analysis high temperature plugging test contact reliability

Received: 30 January 2015 Published: 28 June 2015

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Cite this article:

XU Cheng-bin，PAN Jun，CHEN Wen-hua，HE Qing-chuan，ZHANG Li-bin，LIANG Jun. Finite element thermal analysis and plugging test of the high temperature electrical connector. Chinese Journal of Engineering Design, 2015, 22(3): 250-255.

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https://www.zjujournals.com/gcsjxb/10.3785/j.issn. 1006-754X.2015.03.008 OR https://www.zjujournals.com/gcsjxb/Y2015/V22/I3/250

高温电连接器有限元热分析与接触件插拔试验

针对高温电连接器在高温环境下工作，在规定时间内能否保证接触件可靠接触问题，建立其三维仿真模型，利用有限元软件对外界不同高温环境下电连接器的温度场进行仿真分析，得到其内部插针、插孔接触部位温度最高值处随时间的温度变化规律，并利用电磁加热装置和热电偶测试不同温度环境下该接触处随时间变化的温度，从而验证了有限元热分析的正确性.通过灵敏度分析确定了导热系数是影响该接触处温度的主要性能参数.考虑该性能参数的随机性，运用六西格玛设计准则和拉丁超立方体抽样方法得到了接触处的温度服从正态分布.在不同温度环境下对接触件进行插拔力测试，得到了接触件插入力稳定值与温度的关系，得出接触件能满足接触工作要求的临界温度值，并据此计算出高温电连接器的接触可靠度.

关键词： 高温电连接器, 有限元, 热分析, 高温插拔试验, 接触可靠度

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