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Contact device of vacuum interrupter and vacuum interrupter

A vacuum interrupter and contact technology, applied in high-voltage air circuit breakers, high-voltage/high-current switches, electrical components, etc., can solve problems such as unproposed solutions and difficult implementation of operating mechanisms, so as to improve dynamic stability and thermal stability, reducing arc accumulation, and improving performance

Active Publication Date: 2019-10-01
BEIJING SOJO ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, higher requirements are placed on the design of the supporting operating mechanism, which is difficult to achieve for operating mechanisms with general operating functions
[0009] For the above problems, no effective solution has been proposed

Method used

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  • Contact device of vacuum interrupter and vacuum interrupter
  • Contact device of vacuum interrupter and vacuum interrupter
  • Contact device of vacuum interrupter and vacuum interrupter

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Embodiment Construction

[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] According to an embodiment of the present invention, an embodiment of a contact device of a vacuum interrupter is provided.

[0023] figure 1 is a contact device according to an embodiment of the present invention, such as figure 1 As shown, the device includes:

[0024] The static end contact part 1 and the moving end con...

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Abstract

The invention discloses a contact device of a vacuum arc-extinguishing chamber and a vacuum arc-extinguishing chamber. The contact device comprises a static end contact part and a movable end contact part. The static end contact part comprises an annular conductive cup holder and a static contact piece. The static contact piece is connected to one end of the annular conductive cup holder. The sidewall of the annular conductive cup holder, oriented towards the static contact piece, is provided with a cup holder groove. According to the invention, the contact pressure of the contact of the vacuum arc-extinguishing chamber during the closing process is reduced, and the electric repulsive force during the closing process is also reduced.

Description

technical field [0001] The invention relates to the field of vacuum switches, in particular to a contact device of a vacuum interrupter and the vacuum interrupter. Background technique [0002] For the vacuum interrupter contact, the core component of the vacuum switch, one of the requirements is to conduct the loop current as a good conductor in the closed state. When the moving contact and the static contact are closed, the actual contact area is a small part of the contact surface area. When the vacuum circuit breaker requires the contact to be in a long-term working state, it is necessary to ensure that the shrinkage resistance between the contacts is within the allowable range , to avoid contact welding caused by excessive temperature rise due to long-term work. [0003] Additionally, when current flows through a pair of contacts in the closed position, the pinching effect of the current creates an electromagnetic force that tends to push the contacts apart. The curre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/664
CPCH01H33/6643
Inventor 孔国威魏杰
Owner BEIJING SOJO ELECTRIC
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