How is the introduction and basic structure of circular electrical connectors?

I. How is the introduction of circular electrical connector?

Circular electrical connector is a structure for the cylindrical and has a circular mating surface of the connector, its cylindrical structure with scientific robustness, than any other shape has a higher strength-to-weight ratio, circular electrical connector is easy to use general machine tool processing, easier to seal, insertion and removal, locking mechanism is simple and firm. After decades of development, the circular connector technology is perfect and reasonable, high reliability. The general development trend of circular connectors is miniaturization, high density, high performance and high reliability, the demand for military equipment is the main driving force for the development of circular electrical connector technology and market.

II. What are the basic structures of circular electrical connectors?

1. Contact parts, the core part of the connector, to complete the electrical connection function, usually by the male and female contacts (i.e., pins, sockets, male and female pins) consisting of contact pairs is the key part of the electrical connector, through the male and female contacts (male and female pins) to complete the insertion of the electrical connection. Male contacts are usually divided into rigid contacts and elastic contacts, of which the rigid contacts are cylindrical (round pins), elastic contacts (twisted pins) in the shape of a drum, contacts are usually made of copper, the front end is the part of the pin that can effectively contact the jack, and the back end is used to connect the wires, printed boards, etc., is called the termination part. Female contacts that is, jacks, is the key part of the contact pair, it relies on the elastic structure of the pin inserted in the elastic deformation generated by the elasticity of the male contacts to form a close contact with the completion of the connection, jack structure there are a variety of slotted closed, single-reed type, hyperbolic steel wire spring jacks, fence tube spring holes, rigid round holes, etc. 2. Insulation mounting plate, also known as the base or insulator, the role of which is to arrange the contacts in the required position and spacing, to ensure that the insulation between the contacts and between the contacts and the shell, good insulation resistance, voltage resistance and processing performance is the basic requirements for the selection of insulating materials processed into insulators, insulator materials are usually composed of plastic with good electrical properties, silicone rubber and potting adhesive, plastics are generally made of thermoplastic plastics and thermosetting plastics.3. Shell, also known as the outer shell, the outer shell of the connector, by the plug shell, Socket shell, locking mechanism and tail cover four parts, for the built-in insulation mounting plate and pins to provide support and mechanical protection, usually the plug shell or socket shell structure is provided with a number of positioning keys and positioning slots, in order to provide the correct positioning in the plug and socket insertion, the majority of circular electrical connectors have a locking mechanism through the plug and socket connection to provide a connection, locking and anti-loosening device, while the socket ( Fixed electrical connectors) also provides a fixing device to fix the connector to the equipment, the shell is usually made of aluminum, copper and stainless steel, depending on the use of different environments and occasions, the use of different specific gravity and performance of the material.

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