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Analysis of common failures of electronic connectors and solutions
2023-05-19
Currently, electrical connectors have become more and more widely used in life. Due to the small size of these devices, the design is more precise, in use, there are often all kinds of situations. For some common failures, we also need to do a good job of the corresponding analysis, and think of a good solution: ① Temperature resistance of the current connector's high working temperature of 200 ℃ (a few high temperature):
① temperature resistance of the current connector's high operating temperature of 200 ℃ (except for a few high-temperature special connectors), the low temperature of -65 ℃. As the connector work, the current at the contact point to generate heat, resulting in temperature rise, so it is generally believed that the working temperature should be equal to the ambient temperature and the contact temperature rise and. In some specifications, the connector is clearly defined in the rated operating current allowable high temperature rise.
② resistance to moisture and moisture intrusion will affect the connection h insulation performance, and rust metal parts.
③ salt spray resistant connectors in the environment containing moisture and salt work, its metal structural parts, contact parts surface treatment layer may produce galvanic corrosion, affecting the physical and electrical properties of the connector.
④ vibration and shock vibration and shock resistance is an important performance of electrical connectors, in special applications such as aviation and aerospace, rail and road transport is particularly important, it is an important indicator to test the robustness of the mechanical structure of the electrical connector and electrical contact reliability.
① temperature resistance of the current connector's high operating temperature of 200 ℃ (except for a few high-temperature special connectors), the low temperature of -65 ℃. As the connector work, the current at the contact point to generate heat, resulting in temperature rise, so it is generally believed that the working temperature should be equal to the ambient temperature and the contact temperature rise and. In some specifications, the connector is clearly defined in the rated operating current allowable high temperature rise.
② resistance to moisture and moisture intrusion will affect the connection h insulation performance, and rust metal parts.
③ salt spray resistant connectors in the environment containing moisture and salt work, its metal structural parts, contact parts surface treatment layer may produce galvanic corrosion, affecting the physical and electrical properties of the connector.
④ vibration and shock vibration and shock resistance is an important performance of electrical connectors, in special applications such as aviation and aerospace, rail and road transport is particularly important, it is an important indicator to test the robustness of the mechanical structure of the electrical connector and electrical contact reliability.
⑤ other environmental performance according to the use of the requirements of the electrical connector's other environmental performance are sealing (air leakage, liquid pressure), liquid impregnation (the ability to resist the vices of specific liquids), low air pressure, etc..
