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Use environment and characteristics of aviation plug pin jack

Source： Time：2022-07-02 15:08:02 views：

The use standards of aviation plugs and pin jacks are not generalized, because the situations to be faced in different use cases are also different. In order to ensure the safety and stability of product performance, and to meet the safety and stability of aviation plugs and pin jacks in various places of use It is very important to pay attention to its environmental performance.

							The use standards of aviation plugs and pin jacks are not generalized, because the situations to be faced in different use cases are also different. In order to ensure the safety and stability of product performance, and to meet the safety and stability of aviation plugs and pin jacks in various places of use It is very important to pay attention to its environmental performance.
Aviation plug pin jack use environment
1. The influence of salt spray: The aviation plug can be said to be a three-purpose product of "sea, land and air", and the use occasions are also inseparable from places with a salt spray environment. When the operating temperature is 35 °C and the salt concentration is 3%, the environment will affect the product. The object produces a corrosion effect, which is no exception for metal materials. If such a situation occurs for a long time, the performance of the pin jack will be affected. 48 hours of normal work in the environment.
2. Temperature influence: Most of the aviation plugs are composed of metal or plastic structures, and changes in temperature will naturally have a certain impact on them. The normal operation of the hole will cause great hidden dangers. In order to ensure the safety of the connector, the aviation plug pin jack is required to keep the physical state unchanged within -60 degrees to +85 degrees. After the aviation plug and socket are connected, there will be A certain amount of heat, as long as the working temperature and the ambient temperature are added within the range of -60~85 degrees under normal circumstances.
3. Vibration and shock: Vibration and shock believe that everyone can think of this situation. This situation often affects the electrical contact reliability and robustness of the aviation plug pin jack. Usually, vibration and shock are simulated according to relevant parameters in the production process. environment to test its performance and prolong its lifespan.
Electrical characteristics of aviation plug pin jack
1. The voltage of the pin jack of the aviation plug will reach a certain closing value after a certain period of time, which will cause the film layer of the connector to be broken down, and the contact resistance will drop rapidly. However, due to the thermal effect of the pin jack of the aviation plug, the film is accelerated. The chemical reaction in the vicinity of the layer has a certain repairing effect on the film layer, so the resistance value is nonlinear. Near the threshold voltage, the small fluctuation of the voltage drop will cause the current to change in the range of twenty times or dozens of times.
2. When the current of the pin jack of the aviation plug exceeds a certain value, the Joule heat generated at the interface of the connector of the aviation plug pin and jack will soften or melt the metal due to the action of joule heating, which will affect the concentrated resistance. to reduce the contact resistance.