2 Cores Electric Wire to Wire M8 Mini Male Female Waterproof Connector
2-core power connector structure description
Refers to the outer casing of the plug and socket, the connecting nut, and the tail attachment. The function of the outer casing is to protect the inner parts of the electrical connector such as the insulator and the contact body (the general term of the pin jack) from being damaged. The housing also has a certain electromagnetic shielding effect.
It consists of a pin insulator, a socket insulator, an interface seal body, and a wire seal body. It is used to keep the pin jacks in the set position and to electrically insulate each contact body and between the contact bodies and the housing.
3. Contact body
The contact body includes a male contact member and a female contact member, sometimes referred to as a pin jack, and the connection manner is divided into a soldering type, a crimping type, a press-in type, and a wrap-around type to implement circuit connection.
2-core power connector electrical parameters
A connector is an electromechanical component that connects electrical lines. Therefore, the electrical parameters of the connector itself are the first considerations for selecting a connector.
The rated voltage, also known as the operating voltage, depends mainly on the insulation material used in the machine and the spacing between the contact pairs.
2. Current rating
In the design process of the connector, the thermal current design of the connector is used to meet the rated current requirement, because when there is a current flowing through the contact pair, the contact pair will generate heat due to the conductor resistance and the contact resistance. When the heat exceeds a certain limit, the insulation of the connector and the contact forming are softened to the surface plating, causing malfunction. Therefore, it is necessary to limit the rated current.
3. Contact resistance
Contact resistance refers to the resistance generated by the two contact conductors at the contact portion. Two problems should be noted when selecting. First, the contact resistance index of the connector is actually the contact resistance, which includes the contact resistance and the contact-to-conductor resistance. Usually the conductor resistance is small, so the contact pair resistance is called contact resistance in many technical specifications. Second, in the circuit connecting small signals, it should be noted under what conditions the contact resistance index is given, because the contact surface will be attached with oxide layer, oil stain or other contaminants, and the surface resistance of the two contact parts will be generated. . When the thickness of the film layer increases, the resistance rapidly increases, and the film layer becomes a poor conductor.
In modern electrical and electronic equipment, the density of components and the increasing correlation between them have imposed strict limits on electromagnetic interference. Therefore, the connector is often closed with a metal casing to prevent internal electromagnetic energy radiation or interference from external electromagnetic fields. At low frequencies, only magnetic materials can significantly shield the magnetic field.
Picture of M8 2 Core
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