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Contact pressure is an important indicator of waterproof joints, which directly affects the contact resistance and the wear of the contact pair. In most structures, it is difficult to measure contact pressure directly. Therefore, the contact pressure is usually measured indirectly by the single-leg separation force. First of all, it's actually pretty well-understood in terms of the mechanical properties of the connector. Through practical operation, you can understand the impact of military connector performance. The insertion force of military connectors needs to be larger to ensure contact stability. In the case of small external force interference, it will not affect the normal operation, and the intensity is just the opposite, which is natural and convenient. If possible, dial and plug in once after installation to see if the connector is tight and how the connection works. This is an important constant criterion for measuring the performance of source components of electronic equipment. The electrical properties of the connector mainly include contact resistance, insulation resistance and effective electric strength. Contact resistance is the main working index, which is determined by the specification. Insulation resistance mainly refers to its external safety performance, that is, insulation performance. Since electronic performance is a necessary function of its main function, it is more critical, and it also plays an important role in determining the safety of use, so it should be paid attention to. Sometimes we can refer to manuals and certifications from authorities so that we can understand it well. This is an important factor in ensuring safe and reliable use when selecting connectors and connectors. In addition, the environmental performance of the connector. At present, electronic equipment has a wide range of applications in various environments, so connectors must be able to adapt to various environments. However, how to ensure a connector with strong environmental adaptability, especially a targeted connector, must be selected according to the actual situation, among which the more common ones are temperature resistance, moisture resistance, salt resistance, and corrosion resistance. Those connectors with special functions can only pass the inspection of specialized agencies, and the selection depends on the identity, which is relatively safe. If the connector that is not suitable for the environment is not used in the harsh environment, it will cause a safety hazard. In special applications such as aerospace, railway, road transportation, etc., waterproof seams are very important. It is an important indicator for testing the mechanical structure and electrical contact reliability of electrical connectors. The relevant test methods are clearly specified. The shock test shall specify the peak acceleration, duration and pulse shape, and interruption time of electrical continuity. Other environmental properties According to the requirements of use, other environmental properties of electrical connectors are air tightness (air leakage, liquid pressure), liquid immersion (resistance to certain liquids), low air pressure, etc.

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