Plug-in connecting terminal for use in universal circuit breaker

Abstract

The invention discloses a plug-in connecting terminal for use in a universal circuit breaker, which comprises a connecting terminal frame body fixed on a breaker body, a terminal connecting block arranged in the frame body and a terminal main body connected with a driving device of the breaker, wherein the frame body is fixedly connected with the inside of the breaker body through a frame body connecting device arranged on the frame body; the terminal connecting block can move horizontally in the frame body along guide rails; the terminal main body moves reciprocally through the driving device connected with the terminal main body; and a locking and unlocking device is arranged in the connecting terminal. According to the technical scheme, the connecting terminal can well overcome the technical drawbacks of elastic fatigue susceptibility of a tension spring keeping the terminal connecting block and the terminal main body in close joint, the deformation and cracking susceptibility of a bearing column, the poor dynamic-static terminal contact generated under the action of a downward component force when the terminal main body is plugged in the terminal connecting block, the deformation produced in a dynamic connecting terminal under the action of a deflecting force in the connecting terminal in a connected state, and the like. And the plug-in connecting terminal has the advantages that: the structure is simple; the inter-part connection is reliable; the mechanical movement is smooth; the service life is long; and the problems of high cost and inconvenient operation, which are caused by the frequent replacement of the connecting terminal of the breaker, are solved.

Description

technical field [0001] The invention relates to components of a universal circuit breaker, in particular to a plug-in terminal used in the universal circuit breaker. Background technique [0002] The circuit breaker is used to connect a certain range of internal circuits and external circuits. Its function is equivalent to the main switch. The basic structure of the circuit breaker includes two parts, namely the terminal and the driving device. Driven by the driving device, the terminal can be connected or disconnected. open circuit. According to different connection methods, the wiring terminals of circuit breakers can be divided into front-panel wiring, rear-panel wiring and plug-in wiring terminals. The circuit breaker using plug-in wiring terminals omits the necessary isolation in the wiring terminals of the original general circuit breaker. The device improves the economy of use, and at the same time brings great convenience to operation and maintenance, and increases ...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a plug-in terminal suitable for universal circuit breakers in view of the technical defects existing in the terminal part of the existing universal circuit breaker. In the technical terminal block, the tension spring that keeps the terminal connection block and the terminal body tightly bonded is prone to elastic fatigue, and the cylinder is easy to deform and crack; when the terminal body is inserted into the terminal connection block, the dynamic and static terminals are caused by the downward component force. Poor contact; technical defects such as deformation of the moving terminal in the connecting terminal due to the action of the deflection force, and the structure of the present invention is simple, the connection between the components is reliable, the mechanical movement is smooth, the service life is long, and the large It greatly reduces the problems of high cost and inconvenient operation caused by frequent replacement of circuit breaker terminals

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