某高压电连接器的失效分析

针对某型号高压电连接器在电压冲击试验中的失效现象,进行失效分析.分析手段包括X 射线检查、内部检查和金相分析等.检测发现该元件存在多芯导线压接损伤、剥线损伤等缺陷.根据该高压电连接器的失效模式和各项检测结果,分析得出了其失效机理.最后,在元件设计、工艺控制、质量监控方面提出了改进建议.建议实施后该元件通过了各项检测,质量可靠性得到了提升.

Failure analysis of a high voltage electric connector

The failure phenomenon happened in a certain model of High-Voltage Electric Connectors（HVEC） after voltage impulse testing is studied by applying testing methods of x-ray inspecting, internalchecking, metallographic analysis,etc. The testing results reveal that several defects including multicorewire crimping damage and wire stripping injury are found in these devices. According to their failure modeand testing outcomes,the failure mechanism is analyzed and many reasonable improving approaches fromthe aspects of devices design,processing control and quality monitoring are suggested. After implementingthese recommendations, the newly manufactured high-voltage electric connectors can pass all theexamining items and their reliabilities are greatly enhanced.