Inner bayonet type circular connector

Abstract

The invention discloses an inner bayonet type circular connector which comprises a socket, a plug and tail accessories. The socket and the tail accessories are respectively connected with the plug. The inner bayonet type circular connector is characterized in that the socket comprises a square plate protruding body, contact pin insulators and a contact pin, wherein the contact pin insulators and the contact pin are arranged in the square plate protruding body. A contact pin cover plate is arranged on the front portion of the contact pin, and a waterproof pad is arranged between the contact pin insulators and the contact pin cover plate. The square plate protruding body, the contact pin insulators, the contact pin and the contact pin cover plate are assembled into a whole through assembled potting glue. The plug comprises a shell body, a connecting cap, a jack field insulator and a jack field, wherein the contact pin is connected at the front end of the jack field, a jack field cover plate is arranged at the rear end of the jack field, and the shell body is connected with the square plate protruding body through the connecting cap. The tail accessories comprise a transition cover, a locking cap, a wire protecting spring and a waterproof casing pipe. The inner bayonet type circular connector has good tightness and crushing resistance properties, and can be suitable for poor working conditions such as coal mines and water flood situations.

Description

technical field [0001] The invention relates to a power sealing connection device, in particular to an inner bayonet type circular connector. Background technique [0002] FQN series circular connectors are mainly used for connection between circuits of electronic circuits and electrical equipment. Because it is often used in harsh environments such as floods and sewage, the waterproof performance requirements for FQN series circular connectors are very high. [0003] FQN series circular connectors generally include three parts: socket, plug and tail attachment. The plug is connected to the socket and tail attachment respectively. When in use, the socket is fixed on the electrical equipment, and the wires in the electrical equipment are connected to the external circuit through the connector. The socket part of the existing FQN circular connector adopts an aluminum alloy die-casting process. Although the process is mature and the cost is very low, because the number of plu...

AI Technical Summary

Problems solved by technology

The socket part of the existing FQN circular connector adopts an aluminum alloy die-casting process. Although the process is mature and the cost is very low, because the number of plugging and unplugging of the connection cap and the socket cannot exceed 2000 times, its service life is short and very difficult. Poor connection is prone to occur, resulting in unreliable connector work and circuit failure

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