Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Medium and high voltage switch device

A switchgear, medium and high voltage technology, applied in the field of switchgear, medium and high voltage switchgear, can solve the problems of closing bounce arcing, vacuum bubbles are easy to damage, etc., to avoid explosion, prolong life, and avoid closing bounce arcing Effect

Inactive Publication Date: 2019-04-02
吴长兰
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a medium and high voltage switchgear to solve the technical problems that the medium and high voltage switchgear in the prior art is prone to closing bounce arcing and vacuum bubbles are easily damaged

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Medium and high voltage switch device
  • Medium and high voltage switch device
  • Medium and high voltage switch device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application. The relevant directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship between the components in a certain posture (as shown in the drawings). Sports conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0026] As mentioned in the background technology, when the high-voltage switchgear in the prior art is ope...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of switches, and particularly discloses a medium and high voltage switch device. The medium and high voltage switch device comprises a base frame and a switch unit for fixing the base frame. The switch unit comprises a vacuum bubble, an insulating cylinder, an electromagnetic driver and a debouncing device which are axially connected. The debouncing device comprises a cylinder body, a piston, a drainage device and a reverse-blocking device. The drainage device is arranged in the first end cover at the side of a rod cavity, and is distributed in the axial direction; a triggering discharge rod of the drainage device protrudes out of the lower end surface of the first end cover and extends into the rod cavity. The reverse-blocking device is arranged in the first end cover and is arranged in the radial direction. The rod cavity, the drainage device, the reverse-blocking device and a rodless cavity are communicated in sequence. When the switch device is switched on, the piston impacts the triggering discharge rod to trigger the discharge device and the reverse-blocking device for drainage, so as to eliminate the driving force for enabling a moving contact of the switch device to bounce back at the tail end of the stroke; and the reversing-blocking device is immediately reset and blocked for circulation after the switch device is switched off, and the debouncing device further absorbs energy of backward bouncing of the moving contact after switching off, so that jumping arcing when the switch device is switched off is avoided effectively.

Description

technical field [0001] The invention relates to a switchgear, in particular to a medium-high voltage switchgear, and belongs to the field of electric equipment. Background technique [0002] As a switchgear, medium and high voltage switches are used to control the on and off of medium and high voltage primary circuits. At present, new requirements are put forward for the closing performance of switching devices, such as shorter closing time and no closing arc. The switchgear has a built-in vacuum bubble for arc extinguishing. When the switch is closed, the moving contact of the vacuum bubble moves toward the static contact at high speed, and the moving contact collides with the contact to close the switch. Due to inertia, the moving contact will collide and bounce, and move in the opposite direction at an instantaneous speed close to the closing time. , causing the moving contact to be far away from the static contact, and arcing often occurs between the moving contact and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/666H01H3/60
CPCH01H3/605H01H33/666
Inventor 吴长兰其他发明人请求不公开姓名
Owner 吴长兰
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com