Circular electric connector basic structure introduction, come to collect!

    A circular electrical connector is a connector with a cylindrical structure and a round mating surface. Its cylindrical structure has scientific sturdiness and has a higher strength-to-weight ratio than any other shape. Circular electrical connections The device is easy to process with general machine tools, easier to seal, insert and remove, and the locking mechanism is simple and firm. After decades of development, circular connector technology has become sound, reasonable and highly reliable. 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.

    So what are the basic structures of circular electrical connectors? Let me give you a detailed introduction below.

    1. Contact parts, the core part of the connector, complete the electrical connection function. The contact pair usually composed of male and female contacts (i.e. pins, sockets, male and female pins) is the key part of the electrical connector. Through the male and female contacts The insertion of female contacts (male and female pins) completes the electrical connection. Male contacts are usually divided into rigid contacts and elastic contacts. The rigid contacts are cylindrical (round pins), and the elastic contacts (twist pins) are drum-shaped. The contacts are usually made of copper, and the front end is a pin. The part that can effectively contact the jack, and the rear end is the part used to connect wires, printed boards, etc., is called the termination part. The female contact is the jack, which is the key part of the contact pair. It relies on the elastic deformation of the elastic structure when the pin is inserted to generate elastic force to form close contact with the male contact to complete the connection. There are various jack structures, including slots. Closed type, single reed type, hyperboloid wire spring jack, fence tube spring hole, rigid round hole, etc.

    2. Insulation mounting plate, also called base or insulator, its function is to arrange the contacts at the required position and spacing to ensure the insulation performance between the contacts and between the contacts and the shell, good insulation resistance and voltage resistance And processing performance are the basic requirements for selecting insulating materials processed into insulators. Insulator materials are usually composed of plastics with good electrical properties, silicone rubber and potting glue. Plastics are generally made of thermoplastics and thermosetting plastics.

    3. The shell, also known as the shell, is the outer cover of the connector. It consists of four parts: plug shell, socket shell, locking mechanism and tail cover. It provides support and mechanical protection for the built-in insulating mounting plate and pins. Usually the plug shell or The structure of the socket shell is provided with multiple positioning keys and positioning grooves to provide correct positioning when the plug and socket are inserted. Most circular electrical connectors have locking mechanisms to provide connection and locking when the plug and socket are connected. Tightening and anti-loosening devices, while the socket (fixed electrical connector) also provides a fixing device to fix the connector to the device. The shell is usually made of aluminum, copper and stainless steel. According to different use environments and occasions, different specific gravity and Performance materials.