Analysis of electromagnetic behaviors induced by contact failure in electrical connectors

Li Qingya; Gao Jinchun; Flowers George T.

摘要

Abstract >Electrical connectors are widely used in electrical devices as an interconnect element and their reliability is a critical factor in device performance. However, there are multiple factors that may lead to poor reliability. These include contact failure induced by temperature and humidity, vibration, and atmospheric contamination, which may induce deterioration of the transmitted signal and leakage of electromagnetic energy. In the current work, the contact failure characteristics of a specific connector are investigated through measurement and analysis of high frequency parameters and spectrums. Based on transmission line theory and electrical contact theory, an equivalent model was developed to explore the effect of contact failure on high frequency parameters. Experiments were conducted using a network analyzer, signal generator, signal analyzer, and H‐field probe. The high frequency parameters were measured and compared with the calculated values, with consistent results. The leakage spectrums were measured with an H‐field probe for a variety of input signal amplitudes and frequencies and loose contact conditions. The results indicate that leakage increases with higher frequency and greater input signal amplitude. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><abstract type =“main”xml：lang =“en”> <标题类型=“main”>抽象</ title> <P>电连接器广泛用于电气设备，作为互连元件，其可靠性是设备性能的关键因素。但是，有多种因素可能导致可靠性差。这些包括温度和湿度，振动和大气污染诱导的接触失败，这可能导致透射信号和电磁能泄漏的劣化。在当前的工作中，通过测量和分析高频参数和频谱来研究特定连接器的接触失效特性。基于传输线理论和电接触理论，开发了一种等效的模型来探讨接触失效对高频参数的影响。使用网络分析仪，信号发生器，信号分析仪和H场探头进行实验。测量高频参数并与计算值进行比较，结果一致。用H字段探针测量泄漏频谱，用于各种输入信号幅度和频率和松散的接触条件。结果表明，泄漏随着更高的频率和更大的输入信号幅度而增加。</ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-24977/'>《Microwave and optical technology letters》</a> <b style="margin: 0 2px;">|</b><span>2019年第11期</span><b style="margin: 0 2px;">|</b><span>共7页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Li Qingya&option=202" target="_blank" rel="nofollow">Li Qingya;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Gao Jinchun&option=202" target="_blank" rel="nofollow">Gao Jinchun;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Flowers George T.&option=202" target="_blank" rel="nofollow">Flowers George T.;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>School of Electronic Engineering Beijing Key Laboratory of Work Safety Intelligent MonitoringBeijing University of Posts and TelecommunicationsBeijing China;</p> <p>School of Electronic Engineering Beijing Key Laboratory of Work Safety Intelligent MonitoringBeijing University of Posts and TelecommunicationsBeijing China;</p> <p>Center for Advanced Vehicle and Extreme Environment Electronics (CAVE3)Auburn UniversityAuburn Alabama;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1165.html" title="光学">光学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=contact failure&option=203" rel="nofollow">contact failure;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=electromagnetic radiation&option=203" rel="nofollow">electromagnetic radiation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=high frequency parameters&option=203" rel="nofollow">high frequency parameters;</a> </p> <div class="translation"> 机译：接触失败;电磁辐射;高频参数; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" 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class="enjiyixqcontent" href="/patent-detail/06130431674626.html">Cover for electromagnetic valve, has electrical contact surface, particularly electrical arc of contact, that is provided on its rear side for connecting through electrical plug contacts at electromagnet</a> <b>[P]</b> . <span> 外国专利：  DE102007013877A1 </span> <span> . 2008-10-02</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：用于电磁阀的盖具有电接触面，特别是接触电弧，该电接触面在其后侧提供，用于通过电磁体上的电插塞触点进行连接 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130445726380.html">Electrical connector electromagnetic screening mechanism having printed circuit board/connector and screening plates extending connector rear/front printed circuit board face and contacting earthing track.</a> <b>[P]</b> . <span> 外国专利：  FR2815778A1 </span> <span> . 2002-04-26</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：电连接器电磁屏蔽机构，其具有印刷电路板/连接器和扩展连接器后/前印刷电路板表面并接触接地轨道的屏蔽板。 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130500498288.html">Connecting unit of electrical equipment, electromagnetic contactor equipped with the same, thermal dynamic overload relay, electromagnetic switch</a> <b>[P]</b> . <span> 外国专利：  JP6922390B2 </span> <span> . 2021-08-18</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：电气设备连接装置，电磁接触器配备相同，热动态过载继电器，电磁开关 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div 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