Circuit breaker mechanism with undervoltage tripping device

By setting a reference plate and installation notch on the main body of the circuit breaker mechanism, multiple trigger rods and limit switches are used to control multiple closing switches, which solves the problems of large space occupation and inconvenient wiring of the undervoltage trip device, and realizes rapid installation and real-time status feedback.

CN224554303UActive Publication Date: 2026-07-24TAIAN TAIHE ELECTRIC POWER EQUIP CO LTD
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Patent Information

Application Number
CN202521515813.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-21
Publication Date
2026-07-24
Estimated Expiration
2035-07-21

AI Technical Summary

Technical Problem

The undervoltage release device in the existing circuit breaker mechanism occupies a large space and is inconvenient for wiring, which affects normal operation. In addition, it needs to be set to avoid the path of moving parts, making it difficult to operate multiple closing switches at the same time.

Method used

By setting a reference plate and mounting notch on the main body of the circuit breaker mechanism, installing the undervoltage tripping main body, and using multiple trigger rods and limit switches to achieve linkage control, combined with the synchronization rod and magnetic attraction main body, the control and status feedback of multiple closing switches can be realized.

Benefits of technology

It enables rapid installation and secure connection of the undervoltage trip device, can control multiple closing switches simultaneously without affecting the normal operation of the circuit breaker mechanism, and provides real-time status feedback.

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Abstract

The utility model discloses a circuit breaker mechanism with an undervoltage tripping device, which comprises a circuit breaker mechanism main body, a datum plate is fixed on the circuit breaker mechanism main body, the datum plate is provided with an installation notch, an installation plate is fixed at the installation notch, and a detachable limiting plate used for limiting the installation plate is further arranged at the installation notch. An under-voltage tripping main body is fixed on the mounting plate, and one end of the under-voltage tripping main body is provided with a first trigger rod used for abutting against a closing pawl of a circuit breaker mechanism main body; the other end of the undervoltage tripping main body is provided with a second trigger rod, and the position of the second trigger rod is provided with a limit switch which abuts against the second trigger rod. According to the undervoltage tripping device, the reference plate is preset, then the undervoltage tripping main body can be rapidly installed in a manner of arranging the installation gap, and state feedback can be performed through the limit switch while the closing switch is prevented from closing in a manner of arranging the plurality of trigger rods, so that a worker can conveniently know a real-time state.
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