Manual switch-on and switch-off spring operating mechanism and vacuum circuit breaker thereof

Abstract

The invention discloses a manual switch-on and switch-off spring operating mechanism and a vacuum circuit breaker thereof. The manual switch-on and switch-off spring operating mechanism comprises an insulating shell, a manual deflector rod is arranged in the insulating shell in a penetrating manner, a movable iron core is fixedly arranged on a push rod, and a switch-on static iron core and a switch-off static iron core are respectively arranged at two sides of the movable iron core. A pawl is hinged to the side, close to the closing static iron core, of the rack, the pawl is arranged below therack, a ratchet wheel is arranged at the position, close to the pawl, of the insulating shell, a switch is arranged on the upper wall of the downward-concave block, and the switch is electrically connected with the closing coil. The invention provides a manual switch-on and switch-off spring operating mechanism, which is internally provided with a structure for automatic locking during opening and closing, effectively prevents mistaken touch and mistaken reaction, and improves the safety of the device in use. The invention further provides a vacuum circuit breaker comprising the manual switch-on and switch-off spring operating mechanism, and is convenient to use and very worthy of popularization.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a manual opening and closing spring operating mechanism and a vacuum circuit breaker thereof. Background technique [0002] In the prior art, a spring permanent magnet closing and opening operating device with the application number "201811276457.X" includes a permanent magnet operating mechanism, a spring energy storage mechanism and a closing and opening operating mechanism; the permanent magnet operating mechanism includes a permanent magnet operating mechanism Rod, static end flange, static magnetic yoke, static iron core, closing and opening coil, permanent magnet and moving iron core; spring energy storage mechanism includes manual energy storage shaft, driven camshaft, closing spring, large sprocket and Small sprocket; closing and opening operating mechanism includes switch closing and opening driving lever, spring driving seat, manual closing lever, three-phase c...

AI Technical Summary

Problems solved by technology

[0003] However, there are still relatively obvious defects in its use: 1. The above-mentioned device cannot be self-locked when it is opened, and it cannot avoid automatic closing. When the operator repairs and maintains the circuit breaker, there will be a large Potential safety hazard; 2. If the above-mentioned devices want to maintain the closed state, they need to be continuously energized in the closing coil. Such a setting will not only increase power consumption, but also cause the coil to overheat and the heat inside the circuit breaker to emitted, causing damage to the circuit breaker

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