Closing holding device for vacuum circuit breaker

A vacuum circuit breaker, closing and holding technology, applied in the direction of high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc.

Inactive Publication Date: 2012-07-04
SUZHOU LONGER ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vacuum circuit breaker with this structure is inconvenient to use

Method used

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  • Closing holding device for vacuum circuit breaker
  • Closing holding device for vacuum circuit breaker

Examples

Experimental program
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Embodiment Construction

[0013] The present invention is described below in conjunction with accompanying drawing.

[0014] as attached figure 1 Shown is a vacuum circuit breaker with a closing and holding device of the present invention, which includes a closing and holding detent 1, a moving conductive rod 3, a disconnector moving contact 4, a closing and holding unlocking block 5, an opening spring 6, The moving contact 7, the static contact 8, and the housing 9; the housing 9 is provided with a hollow cavity; The middle part of the cavity; the moving contact 7 is connected with the top rod on the upper part of the moving conductive rod 6; the static contact 8 is fixed on the top of the cavity, and is spaced apart from the moving contact 7; The sub-pieces 1 are arranged in pairs on the lower part of the moving conductive rod 3; a compression spring 2 is arranged between the lower end side of the closing holding detent 7 and the inner wall of the cavity; the middle part of the closing holding dete...

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PUM

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Abstract

The invention discloses a vacuum circuit breaker with a closing holding device. A hollow cavity is formed in a housing; switch-off springs are sleeved on a movable conductor pole, and arranged in the middle of the cavity in the housing; a movable contact is connected with an ejector rod at the top part of the movable conductor pole; a static contact is fixed at the top part of the cavity and is separated from the movable contact; paired closing holding pawls are arranged at the lower part of the movable conductor pole; pressure springs are arranged between the side parts of the lower ends of the closing holding pawls and the inner wall of the cavity; protrusions are arranged at the middle parts of the closing holding pawls and clamped at the bottom of the movable conductor pole when the movable contact and the static contact are in contact; inclined planes are arranged at the lower parts of the closing holding pawls; the inclined planes of one pair of closing holding pawls form an erect V-shaped structure; a closing holding unlocking block is arranged in the V-shaped structure; and an isolating switch movable contact is arranged at the lower part of the closing holding unlocking block so as to push the closing holding unlocking block to perform up-and-down motion. The vacuum circuit breaker with the closing holding device provided by the invention is convenient to control.

Description

technical field [0001] The invention relates to a vacuum circuit breaker, in particular to a vacuum circuit breaker with a closing and holding device, and belongs to the technical field of vacuum circuit breakers. Background technique [0002] At present, after the current vacuum circuit breaker is closed, the moving contact and the static contact are in contact with each other. To maintain this contact state, an additional structure is required to keep the moving contact in the closed state. The vacuum circuit breaker with this structure is inconvenient to use. Contents of the invention [0003] The object of the present invention is to provide a vacuum circuit breaker with a closing and holding device. [0004] The present invention is achieved through the following technical solutions: a vacuum circuit breaker with a closing and holding device, including a closing and holding detent, a moving conductive rod, a moving contact of a disconnector, a closing and holding un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/666
Inventor 董强华赵超
Owner SUZHOU LONGER ELECTRIC CO LTD
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