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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part D. Journal of Automobile Engineering >Contact resistance study of high-copper alloys used in power automotive connectors
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Contact resistance study of high-copper alloys used in power automotive connectors

机译：电力汽车连接器用高铜合金的接触电阻研究

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Contact resistance of the copper alloys used in automotive connectors was studied in the literature, but no study has been undertaken in order to optimize this resistance for the new high-copper alloys intended for power automotive connectors. This study was carried out in order to determine the changes in resistance for different loadings and contact geometries. A new generation of high-performance copper alloys was analysed. The used samples were U shaped with a segment containing a sphere and were subjected to insertion (sliding contact) and indentation (static contact) tests. A finite element simulation using the ANSYS code gave contact modellings with or without roughness; this roughness was measured with a profilometer. Numerical modelling of the contact surfaces when the roughness of the materials was taken into account led to results close to the experimental results especially in the case of the lower forces during the indentation test. On the other hand, a relation between the contact resistance and the contact force was established. These results could help in the choice of a material to provide a good compromise concerning both the electrical and the mechanical aspects for a power connector used for automotive industry.
机译：汽车连接器中使用的铜合金的接触电阻已在文献中进行了研究，但尚未进行研究来优化用于动力汽车连接器的新型高铜合金的电阻。进行这项研究是为了确定不同负载和接触几何形状的电阻变化。分析了新一代高性能铜合金。用过的样品为U形，带有一个包含球体的段，并进行了插入（滑动接触）和压痕（静态接触）测试。使用ANSYS代码进行的有限元模拟给出了带有或不带有粗糙度的接触模型;用轮廓仪测量该粗糙度。当考虑到材料的粗糙度时，对接触表面进行数值建模会导致结果接近于实验结果，尤其是在压痕测试过程中施加较小力的情况下。另一方面，建立了接触电阻和接触力之间的关系。这些结果可能有助于选择一种材料，以便在用于汽车行业的电源连接器的电气和机械方面提供良好的折衷。

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