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A miniature circuit breaker

A miniature circuit breaker, double break point technology, applied in the direction of circuit breaker components, circuit breaker contacts, switches with electric heating and electromagnetic release, etc., can solve the problem that the arc is not sufficiently cooled, the arc is broken, and cannot be used in different forms Tripping and other problems, to achieve the effect of simple structure, shortened length and compact structure

Active Publication Date: 2014-12-31
SCHNEIDER ELECTRIC IND SAS
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In addition, it is precisely because the arc cannot be fully stretched, the arc cannot be cooled sufficiently, and the arc cannot be broken directly, so the arc extinguishing chamber has to be used to help extinguish the arc
[0003] Secondly, the existing miniature circuit breakers cannot complete several compound actions in completely different directions in the same unit in an orderly manner. In particular, in order to complete the rotation and translation movements, different transmission mechanisms need to be set up, so it is impossible to obtain a compact structure. structure
[0004] In addition, the existing tripping mechanism cannot complete different forms of tripping in the same tripping mechanism, such as manual tripping, magnetic tripping and thermal tripping
[0005] In addition, almost all existing miniature circuit breakers adopt a highly similar structure, in which the magnetic release adopts a cylindrical helical structure. Although this structure plays an important role in existing circuit breakers, it does not Circuit breakers for new constructions

Method used

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  • A miniature circuit breaker
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Embodiment Construction

[0076] Preferred embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will understand the features and advantages of the present invention from the accompanying drawings and corresponding descriptions.

[0077] Figure 1a , 1b shows a schematic diagram of the main components of the miniature circuit breaker according to the present invention; Figure 2a , 2b shows a miniature circuit breaker comprising a miniature circuit breaker housing according to the present invention, wherein the miniature circuit breaker housing is substantially rectangular; Figure 3a , 3b shows a miniature circuit breaker comprising a miniature circuit breaker housing according to the present invention, wherein the miniature circuit breaker housing is substantially cylindrical; Figure 4a , 4b shows a simplified structure of a miniature circuit breaker including a miniature circuit breaker housing accordi...

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Abstract

The invention describes a miniature circuit breaker, which is characterized in that: the miniature circuit breaker comprises a torsional stretch dual-breaker arc extinguishing system, a linkage transmission mechanism and a tripping mechanism, which are arranged in a same axis, wherein the torsional stretch dual-breaker arc extinguishing system comprises a disc-shaped stationary contact and a disc-shaped moving contact which are provided in the same axis; a movement of the linkage transmission mechanism acts on the disc-shaped moving contact so as to enable the disc-shaped moving contact to simultaneously rotate and translate with respect to the disc-shaped stationary contact; under the action of the tripping mechanism, the disc-shaped stationary contact and the disc-shaped moving contact can be in a locked state or a tripped state.

Description

technical field [0001] The invention relates to the field of circuit breakers, in particular to a novel miniature circuit breaker. Background technique [0002] Almost all existing miniature circuit breakers use highly similar clap-type dynamic and static contacts. This structure has high requirements for the opening distance of the dynamic and static contacts, otherwise the arc is not easy to be fully stretched, thereby inhibiting the arc from moving and static. Transfer of contacts to interrupter. In addition, it is precisely because the arc cannot be fully stretched, the arc cannot be cooled sufficiently, and the arc cannot be broken directly, so the arc extinguishing chamber has to be used to help extinguish the arc. [0003] Secondly, the existing miniature circuit breakers cannot complete several compound actions in completely different directions in the same unit in an orderly manner. In particular, in order to complete the rotation and translation movements, differe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H73/04H01H73/18H01H73/48
Inventor 杨武王了焉
Owner SCHNEIDER ELECTRIC IND SAS
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