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Bounce-free plug-in type vacuum arc-extinguishing chamber

A vacuum interrupter, plug-in technology, used in high-voltage air circuit breakers, electrical components, electrical switches, etc., can solve problems such as wear on the outer peripheral surface, and achieve the effect of eliminating bounce and solving wear and tear.

Inactive Publication Date: 2016-09-28
XUJI GRP +2
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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 a non-bounce plug-in vacuum interrupter to solve the problem in the prior art that the outer peripheral surface of the movable contact is prone to wear during the bounce process

Method used

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  • Bounce-free plug-in type vacuum arc-extinguishing chamber

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Embodiment Construction

[0017] Examples of bounce-free plug-in vacuum interrupters figure 1 As shown, it includes a ceramic shell 3, and the ceramic shell 3 is provided with a moving contact 4 and a static contact assembly arranged up and down. The upper end of the moving contact 4 is sequentially connected to the bellows 2 and the upper The conductive rod 1 is also provided with a shielding case (not shown in the figure) in the ceramic shell 3 .

[0018] The static contact assembly includes a static contact 7, and the static contact 7 is provided with a contact portion for plugging and conducting electricity with the outer peripheral surface of the movable contact 4. In this embodiment, the contact portion is an elastic conductor, specifically a watch strap Finger 5. On the static contact 7, the buffer contact 11 that is used to connect with the movable contact 4 to conduct electricity is provided with a buffer contact 11 that is in contact with the end surface of the movable contact 4 through an e...

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Abstract

The invention provides a bounce-free plug-in type vacuum arc-extinguishing chamber. The bounce-free plug-in type vacuum arc-extinguishing chamber comprises a static contact, the static contact is provided with a contact portion used for plugging conduction with the outer peripheral face of a moving contact, the static contact is internally provided with a buffer contact used for contact cooperation with the end surface of the moving contact through elastic components. The bounce-free plug-in type vacuum arc-extinguishing chamber has the following advantages: the static contact is internally provided with the buffer contact used for contact cooperation with the end surface of the moving contact through the elastic components, such that when the moving contact is in plugging fit with the static contact, the end surface of the moving contact is in contact with the buffer contact, when the moving contact moves, under the effect of the elastic components, the buffer contact moves along with the moving contact, the elastic components are compressed, in such a process, kinetic energy of the moving contact is absorbed by the buffer contact and the elastic components, bounce of the moving contact is eliminated through proper design of the buffer contact and the elastic components, and the problem of easy wear caused to the outer peripheral face of the moving contact in a bounce process is also solved.

Description

technical field [0001] The invention relates to a non-bounce plug-in vacuum interrupter. Background technique [0002] The vacuum interrupter is an important part of the vacuum circuit breaker. The vacuum interrupter in the prior art includes a ceramic shell. The ceramic shell is provided with moving contacts and static contacts arranged up and down. The upper end of the moving contact and the moving contact The conductive rods are connected, the lower end of the static contact is connected with the static conductive rod, and the contact conductive form of the dynamic and static contacts is the butt joint type of end contact. Due to the influence of the material and hardness of the contact, the closing speed and the quality of the moving contact system, after the high-speed contact and collision of the moving and static contacts, it is inevitable to be accompanied by a series of jumping processes, that is, the closing bounce phenomenon. , the jumping amplitude is tens to hu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/664
CPCH01H33/664H01H2033/6648
Inventor 何荣涛李明道何彭遵明伟郅娇娇曹善军
Owner XUJI GRP
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