Miniature circuit breaker suitable for small ampere current

Abstract

The invention discloses a miniature circuit breaker suitable for a small ampere current. A shell is included, and a tripping mechanism is arranged in the shell; the tripping mechanism comprises a static contact, an armature and a magnet yoke; the static contact comprises a first connecting section, a second connecting section, a third connecting section and a fourth connecting section; one end ofthe first connecting section is connected with one end of the second connecting section so that a V-shaped structure is formed; one end of the third connecting section is connected with the other endof the first connecting section through a bent section; the other end of the third connecting section is connected to a wiring terminal of the circuit breaker; one end of the fourth connecting sectionis connected with the other end of the second connecting section; the armature is arranged in the V-shaped structure formed by connecting the first connecting section and the second connecting section; and one end of the armature is hinged and matched with an included angle of the V-shaped structure, and the magnet yoke wraps and is fixed on an outer side of the second connecting section. Throughthe above arrangement, the tripping mechanism can be suitable for the small ampere current, and is simple in structure and high in breaking capacity.

Description

technical field [0001] The invention relates to a circuit breaker, in particular to a small circuit breaker suitable for small ampere current. Background technique [0002] At present, in order to make the tripping mechanism in the existing miniature circuit breaker suitable for small amperage current, it is often necessary to install a tripping coil, or even use multiple tripping coils together, resulting in a complex product structure and existing small circuit breakers. The breaking capacity of the circuit breaker also needs to be improved. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a small circuit breaker suitable for small ampere current, which has a simple structure and strong breaking capacity. [0004] In order to achieve the above object, the present invention provides a small circuit breaker suitable for small amperage current, which includes a housing, and a tripping mechanism is arranged in th...

AI Technical Summary

Problems solved by technology

[0002] At present, in order to make the tripping mechanism in the existing miniature circuit breaker suitable for small amperage current, it is often necessary to set up a tripping coil, or even use multiple tripping coils together, which leads to complex product structure and existing small circuit breakers. The breaking capacity of the circuit breaker also needs to be improved

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