Electric energy meter external circuit breaker

Abstract

The invention discloses an external circuit breaker of an electric energy meter. The circuit breaker comprises more than one circuit breaker unit and an electric operation unit, the electric operation unit and the circuit breaker units are in a linkage by employing a rotating shaft rotation mode, a circuit board is arranged in each circuit breaker unit, and the adjacent circuit breaker units are connected through pins or welding so that signal transmission of each circuit board can be realized. According to the circuit breaker, the circuit boards are arranged in the circuit breaker units so that the circuit control is modularized, and electricity taking and signal feedback of the circuit breaker are connected via pins in each electrode so that the production is facilitated.

Description

technical field [0001] The invention discloses an external circuit breaker for an electric energy meter, which belongs to the technical field of circuit breaker manufacturing that can remotely control opening and closing according to the International Patent Classification (IPC). Background technique [0002] The external circuit breaker of the electric energy meter is the key device to cooperate with the smart electric energy meter to realize the intelligent fee control function. The intelligent electric energy meter with a relatively large rated current (>60A) generally adopts an external circuit breaker to realize various fee control functions. It complies with the technical specifications of the State Grid (Q / GDW11421-2015) and the technical specifications of the China Southern Power Grid. The external circuit breaker of the electric energy meter includes more than one circuit breaker unit and an electric operation unit. The internal components of the circuit breaker ...

AI Technical Summary

Problems solved by technology

Chinese document CN204480979U discloses a circuit breaker capable of remotely controlling opening and closing. Front-end wiring modules and rear-end wiring modules are arranged at the front and rear ends of the circuit breaker, and the connection lines are connected from the above two modules to the opening and closing modules. The wiring module There are front-end circuit boards, rear-end circuit boards and connecting wires inside. The combination of the wiring module and the circuit breaker further squeezes the internal space of the circuit breaker, and it is inconvenient to install and maintain, and the wire connection is cumbersome.

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