The composition of the military connector structure and routine maintenance
Connector is generally refers to the electrical connector, that is, the device that connects two active devices to transmit current or signal.In fact, the usual maintenance and maintenance is very vital, it stands to reason how to implement the maintenance of the connector has become a topic of increasing concern to the partners. So, how to do the usual maintenance and maintenance of the connector? Let's take a look.
First, the composition of the connector structure
Electrical connector by the shell, insulator, contact body of the three basic units.
Electrical connector shell is the shell of the plug and socket, connecting nut, tail attachment. Shell role is to protect the insulator and contact body (common name of the pin jack) and other internal parts of the electrical connector from being damaged. The upper positioning keyway to ensure that the plug and socket positioning. The connection nut is used to connect and separate the plug holder. The end attachment is used to protect the wire and contact body end connection from damage and to fix the cable. The housing also has a certain electromagnetic shielding effect.The shell is generally made of aluminum alloy processing (machine processing, cold extrusion, die-casting). Steel shell is mostly used for glass sealing and high temperature resistant electrical connectors.
Insulator from the loading pin insulator, loading jack insulator. Interface sealing body, sealing line body and other components. Used to keep the pin jack in the set position, and make each contact between the body and each contact body and the shell of mutual electrical insulation. Through the insulator plus interface sealing body sealing line body to obtain sealing measures to improve the environmental performance of the electrical connector.To adapt to the product's high temperature, low temperature, flame retardant, to ensure that the geometry of the parts are stable and reliable. Insulators are mostly molded using thermosetting plastics. Interface sealing body, sealing line body using silicone rubber molding and other molding.
The contact body includes male and female contact parts, sometimes also known as pin jack, the connection method is divided into welding, crimping, press-in and winding type, etc., to achieve circuit connection.Pin jack is the key component of the electrical connector, which directly affects the reliability of the electrical connector. Most of the pin jack using good conductivity of flexible copper alloy materials machined from the surface using silver plating gold plating to achieve small contact resistance and anti-corrosion purposes. Jack generally has a split slot jack, wire spring jack, crown spring jack and punching jack.
Structural features are: environmental resistance, bayonet type (fast) connection, multiple keys (anti-misplacement), contact body and wire crimp connection, (single take to send easy to deal with the failure). Shell plus shielding ring to ensure 360 ° electromagnetic interference shielding ability.
Second, the daily maintenance of the connector is as follows.
In the receipt of the connector, we should carefully observe the outer packaging to see if there is obvious damage to the place, but also to see if there will be damage to the connector itself, etc., must ensure that they see the connector is intact, so that we will not affect the use of even the machine.
Temporarily do not use the connector, do not randomly place the connector, especially casually placed in a sunny place, so that because of negligence forget to place it, the connector will be a long time sun exposure to the quality of damage, thus affecting his use, and even safety accidents, to we have to carefully remember where the connector can be saved, do not negligence, and the occurrence of safety accidents.
3, Environmental impact
High temperature places, it is not possible to place the connector, sustained high temperature or high humidity, will damage the connector, especially with chemicals in the environment, the connector will be corroded, so that the outside of the metal protective layer lost the role of protection, resulting in the destruction of the current line, no normal conductive function, it has become a scrap.
Need to move the connector, careful to avoid touching the connector to hard objects, causing damage to the connector, not to put under heavy objects, so as not to crush the connector.
Connector there is an enemy, that is, grease objects, in the storage or use of the process, if contact with grease items, the connector will also lose its original utility, becoming an obstacle to our work.
Third,application of military connector
Host circuits have very strict requirements for the quality and reliability of electrical connectors, but also because of the high quality and reliability of electrical connectors, so that it is also widely used in aviation, aerospace, defense and other military systems. Electrical connectors commonly used classification methods include shape, structure, use, etc.