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A circuit breaker arc isolation structure

A technology of isolation structure and circuit breaker, applied in the direction of circuit breaker components, circuits, electric switches, etc., to achieve the effect of ensuring safety and preventing overflow

Active Publication Date: 2021-05-18
SHANGHAI LIANGXIN ELECTRICAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an arc isolation structure for a circuit breaker in view of the technical defect that the existing arc isolation device needs a centrally designed partition to prevent leakage. , prevent the arc from overflowing from the handle end of the circuit breaker, and ensure the safety of the use of the circuit breaker

Method used

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  • A circuit breaker arc isolation structure
  • A circuit breaker arc isolation structure
  • A circuit breaker arc isolation structure

Examples

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Embodiment

[0023] as attached figure 1 As shown, an arc isolation structure of a circuit breaker includes a housing 1, a yoke 2, a transmission mechanism 3, a handle 4 and a transmission mechanism 5 in linkage, and the yoke 2 is installed in the inner cavity of the housing 1 and is located below the handle 4. It is characterized in that: a baffle plate 6 is installed on the inner side wall of the housing 1 on the side of the yoke 2, and the combination of the baffle plate 6 and the yoke 2 can separate the arc generation area of ​​the circuit breaker from the installation area of ​​the handle 4, and the transmission mechanism 3 There is a protrusion 5 on the top, and the protrusion 5 is located above the baffle 6, which can block the arc overflowing from the gap between the baffle 6 and the transmission mechanism 3;

[0024] The housing 1 includes a base 101 and an upper cover 102 .

[0025] as attached figure 2 and 4 As shown, the baffle 6 includes a base baffle 601 and an upper cove...

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Abstract

An arc isolation structure for a circuit breaker, which includes a housing (1), a yoke (2), a transmission mechanism (3), a handle (4) and the transmission mechanism (3) in linkage, and the yoke (2) is installed in the housing ( 1) The inner cavity is located below the handle (4), and it is characterized in that: a baffle (6) is installed on the inner wall of the housing (1) on the side of the yoke (2), and the baffle (6) and the yoke ( 2) The combination can separate the arc generation area of ​​the circuit breaker from the installation area of ​​the handle (4), the transmission mechanism (3) is provided with a protrusion (5), and the protrusion (5) is located above the baffle (6), The electric arc overflowing from the gap between the baffle (6) and the transmission mechanism (3) can be blocked; the present invention uses the magnetic errand in the existing electromagnetic system to cooperate with the baffle structure to prevent the arc from overflowing from the handle end of the circuit breaker, Ensure the safety of the use of circuit breakers.

Description

technical field [0001] The invention belongs to the technical field of circuit breakers, and in particular relates to an arc isolation structure for a circuit breaker, which can prevent arcs from overflowing from the handle end of the circuit breaker. Background technique [0002] At present, the manual opening and closing of small circuit breakers is basically realized by manual operation through the handle. The arc will be led to the arc extinguishing chamber through the arc strike angle and extinguished. However, a small part of the arc sometimes leaks out from the gap between the handle and the housing along the opposite direction. On the one hand, the leaked arc may burn the handle black, which will affect the operating performance and reliability; harm to the body. At present, most of the small circuit breakers do not have corresponding protection measures for the arc leaking from the gap in the shell. Even if there are individual ones, they are protected by a combi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H73/18H01H9/44
CPCH01H9/44H01H73/18
Inventor 张阳段辉王芳李晓珍
Owner SHANGHAI LIANGXIN ELECTRICAL