2 pin 7287-1596-30 Automobile Waterproof Cable Electrical Connector Wiring Socket

The accessories of automotive connectors mainly include locking blocks, collars, sealing rings and sealing plugs, screws, nuts and spring collars, etc. Screws, nuts and spring collars are designed or selected according to the needs of installation, such as the fixing between connectors or between connectors and switches, electrical and electronic equipment. Because in general, automotive electrical appliances use large currents, and there are bumps and vibrations during the driving of the car. When the total insertion force between the large contacts cannot guarantee the transmission of electrical signals and the requirements of vibration resistance, the design needs to start from Increase the angle of installing accessories to consider the guarantee. When the connector is installed in a harsh environment such as near the engine and chassis of a car, in order to meet the environmental performance requirements, it is necessary to design or select a sealing plug or a sealing ring to ensure that the terminals of the connector are dustproof and waterproof. When the connector and some sensors and ECU are plugged together, in order to meet the electrical performance requirements, the contacts (terminals) need to have a large retention force and a small gap in the sheath or connector, so it is necessary to design or select a locking block or collar to ensure the relative fixation of the terminals.

Connector interchangeability design

The interchangeability design of automotive connectors refers to the design of the fit gap between the terminal in the sheath and the plug and socket. The gap between the terminal in the sheath will not only affect the assembly and fixing of the terminal, but also affect the contact resistance and contact resistance of the connector. Mechanical strength.

The terminal (jack and blade) must be installed and fixed correctly in the sheath according to the designed shape, size and assembly direction, so as to ensure the reliable fixing of the jack and the blade in the sheath, the cooperation of the plug and the socket, The reliable contact between the plug and the socket realizes reliable connection and transmission of electrical signals. When the fit gap between the terminal and the sheath is too small, the terminal may not fit into the sheath; when the gap is too large, when the plug and socket are inserted, the terminal will be inclined in the sheath, resulting in a large insertion force and the gap between the jack and the insert. The contact is not a surface contact or a line contact but a point contact. The contact resistance is too large, especially when the live mating is more harmful, or the terminal is not fixed at the designed position, causing the holding force of the terminal in the sheath to fail to meet the design requirements. . When the fit gap between the plug and the socket is too small, the plug cannot fit into the socket. When the gap is too large, even if the plug can be inserted into the socket, the contact parts may be subjected to bending force or shearing force. Distort or affect the reliable transmission of electrical signals. The design of the gap between the locking block and the sheath seat is still to ensure the correct assembly of the locking block in the base and the locking of the contacts, and to ensure the reliable fixing of the terminal in the sheath.

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