Experimental investigation on the electrical contact behavior of rolling contact connector.
Experimental investigation on the electrical contact behavior of rolling contact connector.
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DOI：
10.1063/1.4938091
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发表时间：
2015-12
期刊：
影响因子：
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通讯作者：
Junxing Chen;Fei Yang;K. Luo;Mingliang Zhu;Yi Wu;M. Rong
中科院分区：
文献类型：
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作者：
Junxing Chen;Fei Yang;K. Luo;Mingliang Zhu;Yi Wu;M. Rong
滚动接触连接器（RCC）是一种用于具有一个或多个旋转接口的高性能电力传输系统的新技术，例如雷达、卫星、风力发电机和医疗计算机断层扫描机。在RCC中使用滚动接触部件来代替传统的滑动接触以传输电力和/或信号。近年来，随着电力传输要求的不断提高，碾压混凝土的滚动电接触特性对碾压混凝土的长寿命设计越来越重要。本文介绍了碾压混凝土的一种典型形式。本文对滚动电接触的寿命特性进行了一系列的实验研究。分析了真空和空气环境下各种因素对碾压混凝土电接触退化行为的影响。通过场发射扫描电子显微镜和共聚焦激光扫描显微镜观察接触区的表面形貌和元素成分变化，探讨了滚动电接触劣化的机理。
Rolling contact connector (RCC) is a new technology utilized in high performance electric power transfer systems with one or more rotating interfaces, such as radars, satellites, wind generators, and medical computed tomography machines. Rolling contact components are used in the RCC instead of traditional sliding contacts to transfer electrical power and/or signal. Since the requirement of the power transmission is increasing in these years, the rolling electrical contact characteristics become more and more important for the long-life design of RCC. In this paper, a typical form of RCC is presented. A series of experimental work are carried out to investigate the rolling electrical contact characteristics during its lifetime. The influence of a variety of factors on the electrical contact degradation behavior of RCC is analyzed under both vacuum and air environment. Based on the surface morphology and elemental composition changes in the contact zone, which are assessed by field emission scanning electron microscope and confocal laser scanning microscope, the mechanism of rolling electrical contact degradation is discussed.