Cognitive and application understanding of aerospace connectors

18/02/2022 Admin


Aviation plugs, also known as aviation connectors and aviation electrical connectors, are named after they were originally used in the aviation field. Generally used in conjunction with aviation sockets, it is now widely used in navigation, aerospace, aviation, national defense, military, nuclear industry, electric power and other fields. The shell material is often made of magnesium aluminum alloy, stainless steel, etc.

 

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1. What is an aviation connector

Generally speaking, aviation connector can be divided into three parts: aviation plug contact body, insulator and shell.

details as follows:

1. Aviation plug contact body

It is usually formed by cutting or no cutting. Cylindrical pins and sockets are widely used because of their simple structure, reliable contact and easy processing of various specifications.

 

2. Insulator

The insulator of the aviation plug insulator to fix the contact body not only ensures the mutual electrical insulation between multiple contact bodies, but also plays the role of guiding, positioning and sealing. The material and structure of the insulator directly affect the electrical and mechanical properties of the aviation plug. According to the hardness of the material, there are elastic, semi-hard and hard insulators. Commonly used materials are rubber, plastic, ceramics and glass.

 

3. Shell

The aviation plug housing fixes and protects the insulator and the contact body. There are positioning, guiding and tightening mechanisms on the housing to ensure that the aviation plug can work correctly. The shell sometimes also plays the role of sealing, waterproof, fireproof and electric field shielding. The shell of the circular connector has locking types such as thread, bayonet and in-line self-locking, which is convenient for connection in the case of multiple contacts and large insertion force.

 

2. Working principle of aviation connector

working principle:

Aviation plugs are two or several containers that are connected to each other under the liquid surface. These containers are connectors with the same liquid and equal pressure on the liquid surface, and their liquid level heights are the same. If the connecting wires of the aviation plug have the same liquid, but the pressure on the liquid level is different, the pressure difference of the liquid level will be equal to the pressure difference of the liquid level of the two containers of the connector. If the pressure on the liquid surface of the connecting line is equal, there will be different liquids on both sides, and the height of the two liquid surfaces divided from the two liquid surfaces and the density of the liquid are inversely proportional to each other.

 

The principle of aviation plug has a wide range of applications in engineering, such as many water level gauges and oil level gauges, mercury vacuum gauges, liquid column air pressure gauges and differential pressure gauges, which are all made using the principle of connectors. completed.

 

 

3. Aviation connector application

It is used in various fields such as computer, medical treatment, transportation, telecommunications, instrumentation, mechatronics, etc. It is suitable for products with large current, and is widely used in strategic and tactical systems, electronic countermeasures systems, field operation power, communication signal connection systems, aviation and marine communications. and test system.



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