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Circuit breaker

A technology of circuit breakers and moving contacts, applied in circuit breaker parts, circuits, electrical components, etc., to solve problems such as explosions or fires

Pending Publication Date: 2022-01-04
DELIXI ELECTRIC
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

For air circuit breakers used in high-current lines, an arc will be generated when the moving contact and the static contact are disconnected. If the arc is not eliminated in time, it is easy to cause explosion or fire.

Method used

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Embodiment Construction

[0025] This paper conducts a lot of research on the arc extinguishing structures of air circuit breakers. It is found that the current air circuit breakers improve the arc extinguishing efficiency mainly by improving the structure of the arc extinguishing chamber to obtain higher efficiency arc ignition, arc splitting and cooling. On the basis of the above research, this paper takes a new approach and proposes a fast arc extinguishing structure.

[0026] It should be noted that in the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the technology concisely, and does not indicate or imply that the referred device or element must have a specific orientation or a specific orientation configuratio...

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Abstract

The invention discloses a circuit breaker. The circuit breaker comprises a base, a moving contact, a static contact, a baffle and an arc extinguish chamber; the baffle is of a retractable structure; when the moving contact and the static contact are in a breaking state, the baffle is unfolded, the baffle and the arc extinguish chamber are located on the two sides of the contact part of the static contact and the moving contact respectively, and the baffle and the arc extinguish chamber are oppositely arranged, so that the baffle can prevent an electric arc generated by separation of the moving contact and the static contact from moving towards one side far away from the arc extinguish chamber to a certain extent, and the electric arc is pushed to quickly enter the arc extinguish chamber above the contact part of the moving contact and the static contact, so that the electric arc is quickly cooled; and finally, efficient and rapid arc extinguishing is realized.

Description

technical field [0001] The invention relates to the technical field of arc extinguishing, in particular to a circuit breaker. Background technique [0002] Existing air circuit breakers include moving contacts and static contacts. For air circuit breakers used in high-current lines, an arc will be generated when the moving contact and the static contact are disconnected. If the arc is not eliminated in time, it is easy to cause explosion or fire. For this reason, an arc extinguishing chamber is usually provided in the air circuit breaker, and by introducing the arc into the arc extinguishing chamber, the arc generated at the moment when the moving contact and the static contact are disconnected can be quickly extinguished. [0003] Air circuit breakers are usually equipped with gas generating materials. When the moving contact and the static contact are separated, the gas generating material will generate gas to push the arc into the arc extinguishing chamber. The key to qu...

Claims

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Application Information

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IPC IPC(8): H01H73/18H01H9/34H01H9/30
CPCH01H73/18H01H9/34H01H9/302
Inventor 崔贇杰
Owner DELIXI ELECTRIC
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