Operating mechanism for residual current circuit breaker in enclosed shell

Abstract

The invention relates to an operating mechanism for a residual current circuit breaker in an enclosed shell. The operating mechanism comprises a switch handle, a synchronizing bar, a linking piece and an operating rod, wherein the switch handle is positioned outside the enclosed shell; the synchronizing bar is connected with operating handles of the residual current circuit breaker and allows the operating handles to perform synchronous actions; the linking piece is connected with the switch handle and the synchronizing bar and links the switch handle and the synchronizing bar; and one end of the operating rod is fixed with the synchronizing bar, and the other end of the operating rod is provided with an action contact which is contacted with or separated from a leakage switch along with the movement of the operating handle of the residual current circuit breaker. Therefore, linkage of the switch handle to the operating handle can be realized through the connection relation of components, namely the leakage switch can be synchronously switched on along with the switch-on of the circuit breaker when the switch handle is operated and the operating handle of the residual current acts.

Description

technical field [0001] The invention relates to an operating mechanism of an earth leakage circuit breaker, in particular to an operating mechanism for an earth leakage circuit breaker in a closed case. Background technique [0002] The circuit breaker is an indispensable matching component of electrical products. In many cases, it must be installed in a closed hard shell for safety reasons. Such a device generally includes a shell, a circuit breaker placed in the shell, and The operating mechanism of the circuit breaker, the housing generally includes a housing seat for the circuit breaker and an end cover sealed and fixed with the housing base. The operating mechanism generally includes a switch handle placed outside the housing, linked with the operating handle of the circuit breaker and connected at both ends The bridge frame across the circuit breaker connected to both sides of the circuit breaker body, the linkage piece that connects the switch handle and the bridge fr...

AI Technical Summary

Problems solved by technology

However, when the circuit breaker is equipped with a leakage component, the reset of the leakage switch must be manually operated after opening the housing, and the end cover and the housing base are generally fixed by multiple screws, which makes the operation of opening the cover very cumbersome , In addition, we all know that sparks will be generated when the circuit breaker is operated, and the installation of a closed shell is also considered from the perspective of explosion-proof safety. It is obviously against the original intention of the explosion-proof circuit breaker to operate by opening the shell, which is harmful to the life safety of operators. pose a direct threat

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