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Iron core assembly of a small circuit breaker

A small circuit breaker and iron core technology, which is applied to the parts, circuits, and electrical components of the protection switch, can solve the problem of large power consumption, and achieve the effect of simple structure, simple and stable structure, and convenient assembly

Active Publication Date: 2018-01-16
中欧电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem of large power consumption of existing products and provide an energy-saving iron core assembly of a miniature circuit breaker

Method used

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  • Iron core assembly of a small circuit breaker

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Embodiment Construction

[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] An iron core assembly of a small circuit breaker according to an embodiment of the present invention includes a bobbin 1, a static iron core 2, a first moving iron core 3, a second moving iron core 4, a first spring 5, and a second spring 6 .

[0026] The coil 7 is sleeved on the outside of the iron core assembly.

[0027] The coil frame 1 is a hollow columnar structure with both ends open. The aperture of the first opening 11 is equal to the diameter of the hollow column, and the aperture of the seco...

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Abstract

The invention relates to the technical field of breakers and in particular to an iron core assembly of a small sized breaker. The iron core assembly includes a coil skeleton which has two end openings which assume a hollow cylindrical shape. One end opening of the coil skeleton is detachably in fixed connection to a static iron core. The iron core assembly also includes a first dynamic iron core which is disposed within a cavity of the coil skeleton and has one end penetrates the static iron core, a second dynamic iron core which abuts against one side of the first dynamic iron core distant away from the static iron core and has the other end abuts against the coil skeleton, a first spring which sleeves the first dynamic iron core and has one end abutted against the static iron core and the other end abutted against the first dynamic iron core, and a second spring which is arranged coaxial to the first spring and has one end abutted against the static iron core and the other end abutted against the second dynamic iron core. According to the invention, the technical solution lies in overcoming the problem of large electricity consumption of current products and providing an energy-saving iron core assembly of the small sized breaker.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, more specifically, to an iron core assembly of a small circuit breaker. Background technique [0002] Miniature circuit breakers are commonly used in low-voltage electrical appliances. They have the characteristics of small size, conforming to the requirements of modularization standards and high density of internal components. The miniature circuit breaker is used as a power protection switch, and its electromagnetic system (usually called an electromagnetic tripper) is used to protect the circuit. For example, when the circuit is overloaded by a short circuit or the like, the electromagnetic system automatically generates a tripping action. , the tripping action causes the miniature circuit breaker to trip, and the circuit is automatically cut off in time. There are two ways for the miniature circuit breaker to cut off the circuit, delayed cut-off and instantaneous cut-off. The delaye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/34
CPCH01H71/345
Inventor 包启树洪青松王书成罗旭
Owner 中欧电气有限公司
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