CN213660328U

CN213660328U - Release for miniature circuit breaker

Info

Publication number: CN213660328U
Application number: CN202023352047.4U
Authority: CN
Inventors: 支朝乾
Original assignee: Haige Technology Co ltd
Current assignee: Wenzhou Segma Intelligent Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-07-09
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a release for miniature circuit breaker, including moving the iron core, quiet iron core, ejector pin, iron core cover, leakage coil, current coil, leakage coil winds outside the iron core cover, and current coil winds outside leakage coil, and leakage coil's the number of turns is greater than current coil's the number of turns, and it has leakage coil and current coil to wind simultaneously outside the iron core cover, just can realize short-circuit protection and earth leakage protection function through a release, has effectively saved the miniature circuit breaker volume that leads to because release quantity, has realized miniature leakage circuit breaker's the purpose of volume miniaturization.

Description

Release for miniature circuit breaker

Technical Field

The utility model relates to a release for miniature circuit breaker.

Background

The small residual current circuit breaker is a small circuit breaker with residual current protection, the small circuit breaker is provided with short-circuit protection and overload protection, the short-circuit protection is realized through an electromagnetic release, the small residual current circuit breaker needs to be additionally provided with a residual current release to realize the residual current protection in order to realize the residual current protection, and the small residual current circuit breaker is too bulky in size in order to arrange the residual current release.

Disclosure of Invention

In view of this, the present invention provides a release for a miniature circuit breaker, which can realize both short-circuit protection and leakage protection.

In order to realize above mesh, the utility model discloses a release for miniature circuit breaker, including moving iron core, quiet iron core, ejector pin, iron core cover, leakage coil, quiet iron core sets up the front end at iron core cover inner chamber, forms the ejector pin hole in the middle of the quiet iron core, and the ejector pin is worn downthehole at the ejector pin, moves the iron core activity and sets up the rear end at iron core cover inner chamber, and the ejector pin rear end with move the iron core and be connected, move and be provided with the spring between iron core and the quiet iron core, leakage coil is around outside the iron core cover, the release still includes current coil, and current coil winds outside leakage coil, and leakage coil's number of turns is greater than current coil's number of turns.

The utility model discloses further set up to the rear side of quiet iron core forms the spring groove around the ejector pin hole, and the spring setting is at the spring inslot.

The beneficial effects of the utility model are that it has leakage coil and current coil to wind simultaneously outside the iron core cover, when taking place the electric leakage, it moves the iron core and promotes the ejector pin action and realize the dropout to produce current drive in the leakage coil, when the short circuit, current coil's electric current increase in the twinkling of an eye produces magnetic field force drive and moves the iron core and promote the ejector pin and realize the dropout, through reasonable number of turns and drive power design, adopt a release just can realize short-circuit protection and earth leakage protection function, the miniature circuit breaker volume that leads to because release quantity has effectively been saved, the purpose of miniature leakage circuit breaker's volume miniaturization has been realized.

Drawings

Fig. 1 is a schematic diagram of an embodiment of the present invention.

Fig. 2 is a cross-sectional view of an embodiment of the present invention.

Detailed Description

As shown in fig. 1 and 2, the specific embodiment of the utility model is a release for miniature circuit breaker, including moving iron core 1, quiet iron core 2, ejector pin 3, iron core cover 4, leakage coil 5, current coil 6, quiet iron core 2 sets up the front end at the 4 inner chambers of iron core cover, form ejector pin hole 21 in the middle of quiet iron core 2, ejector pin 3 wears in ejector pin hole 21, it sets up the rear end at the 4 inner chambers of iron core cover to move iron core 1 activity, ejector pin 3 rear end is connected with moving iron core 1, it is provided with spring 7 to move between iron core 1 and the quiet iron core 2, the rear side of quiet iron core 2 forms spring pocket 22 around ejector pin hole 21, spring 7 sets up in spring pocket 22, leakage coil 5 is around outside iron core cover 4, current coil 6 is around leakage coil 5, the number of turns of leakage coil 5 is greater than current coil 6's the number of turns.

The above embodiments should not be considered as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. The utility model provides a release for miniature circuit breaker, is including moving iron core, quiet iron core, ejector pin, iron core cover, leakage coil, and quiet iron core setting forms the ejector pin hole in the middle of the quiet iron core at the front end of iron core cover inner chamber, and the ejector pin is worn at the ejector pin downthehole, moves the iron core activity and sets up the rear end at iron core cover inner chamber, and the ejector pin rear end with move the iron core and be connected, move and be provided with the spring between iron core and the quiet iron core, leakage coil is around outside iron core cover, its characterized in that: the tripper also comprises a current coil, the current coil is wound outside the leakage coil, and the number of turns of the leakage coil is greater than that of the current coil.

2. The trip unit for a miniature circuit breaker of claim 1 wherein: and a spring groove is formed around the ejector rod hole at the rear side of the static iron core, and the spring is arranged in the spring groove.