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High temperature environment will have a threat to the performance degradation, storage and service life of the connector. Based on the principle of high-temperature degradation of connectors, this paper proposes that the generation of corrosion products in contact metal and the stress relaxation of elastic components are the main characteristics of connector performance degradation. Starting from the testing of connector contact resistance and pull-out force, high-temperature acceleration experiments are conducted on three aviation connectors, and the results are analyzed. Finally, this paper verifies that the Larson-Miller formula is applicable to the mathematical model of contact performance degradation of the connectors in high temperature environments. The results show that the contact resistance degradation model conforms to the upper convex logarithmic model, and the extraction degradation model conforms to the lower concave logarithmic model.

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Research on the Electrical Contact Performance Degradation of Aviation Connectors Under High-Temperature Conditions

  • 会议论文

  • 发表日期：

    2025年

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  • Lishuai Zhu,
  • Mingming Liu,
  • Renwen Feng,
  • Xueyan Lin

摘要

High temperature environment will have a threat to the performance degradation, storage and service life of the connector. Based on the principle of high-temperature degradation of connectors, this paper proposes that the generation of corrosion products in contact metal and the stress relaxation of elastic components are the main characteristics of connector performance degradation. Starting from the testing of connector contact resistance and pull-out force, high-temperature acceleration experiments are conducted on three aviation connectors, and the results are analyzed. Finally, this paper verifies that the Larson-Miller formula is applicable to the mathematical model of contact performance degradation of the connectors in high temperature environments. The results show that the contact resistance degradation model conforms to the upper convex logarithmic model, and the extraction degradation model conforms to the lower concave logarithmic model.