Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Circuit breaker arc extinguishing system for shrinking narrow slit type double-circulation airflow

A double-cycle, circuit breaker technology, applied in the direction of circuit breaker parts, circuits, electrical components, etc., can solve the problems of arc re-breakdown, etc., and achieve the effect of increasing arc extinguishing speed, reducing re-breakdown, and facilitating arc extinguishing

Inactive Publication Date: 2021-04-06
JIANGYIN LIYUAN ELECTRONICS
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the present invention proposes a circuit breaker arc extinguishing system with narrow slit type double-circulation airflow, which aims to overcome the drawbacks of the circuit breaker arc extinguishing system in the prior art that easily cause arc re-strikes, and improve the performance of the circuit breaker. performance and service life

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
  • Circuit breaker arc extinguishing system for shrinking narrow slit type double-circulation airflow
  • Circuit breaker arc extinguishing system for shrinking narrow slit type double-circulation airflow
  • Circuit breaker arc extinguishing system for shrinking narrow slit type double-circulation airflow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0028] like Figures 1 to 3 Shown is an embodiment of an arc extinguishing system for a circuit breaker with a shrinking slit type double-circulation air flow of the present invention, including a moving contact 1, a static contact 2, an arc extinguishing chamber 3 and a 4, the arc extinguishing chamber 3 is provided with an arc extinguishing assembly 6, and the arc extinguishing assembly 6 includes a set of arc extinguishing grids 7 arranged at intervals and two adjacent arc extinguishing grids The gas-producing interlayer 8 between the sheets 7 is provided with an opening groove 9 on the arc extinguishing grid sheet 7 near the front end of the arc exting...

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 discloses a circuit breaker arc extinguishing system for shrinking narrow slit type double-circulation airflow, which comprises a moving contact, a static contact, an arc extinguishing chamber and an arc striking plate arranged at the inlet part of the arc extinguishing chamber, wherein an arc extinguishing assembly is arranged in the arc extinguishing chamber; the arc extinguishing assembly comprises a group of arc extinguishing grid sheets arranged at intervals and a gas production interlayer arranged between two adjacent arc extinguishing grid sheets, an open groove body is arranged on the arc extinguishing grid sheets close to the front end head part of the inlet part of the arc extinguishing chamber towards the inside of the arc extinguishing chamber, and the open groove body forms a main arc channel; a pair of airflow partition plates are also arranged at the inlet part of the arc extinguishing chamber and are respectively arranged at the two sides of the front end part of the arc extinguishing grid sheet; and a shunt arc channel is arranged between one surface of each airflow partition plate and the outer side of the front end head of the arc extinguishing grid plate, and an overflow arc channel is arranged between the other surface of each arc extinguishing grid plate and the inner wall of the shell of the arc extinguishing chamber. The system can reduce or avoid the production of the arc rebreakdown phenomenon, improve the performance of the circuit breaker and prolong the service life of the circuit breaker.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a circuit breaker arc extinguishing system with contracted slit type double-circulation airflow. Background technique [0002] A circuit breaker usually consists of an electromagnetic mechanism, a contact mechanism, an overload trip assembly and an arc extinguishing system, wherein the arc extinguishing system is an important functional component of the circuit breaker. The structure of the arc extinguishing system is mainly composed of a pair of moving and static contacts, an arcing channel, an arc extinguishing chamber and an exhaust channel. When the circuit breaker performs short-circuit current breaking, the arc between the moving and static contact Under the action, it enters the arc extinguishing chamber through the arc striking channel to cool and extinguish, so the performance of the arc extinguishing system directly affects the short-circuit breaking performanc...

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): H01H9/34H01H73/18
CPCH01H9/34H01H73/18
Inventor 王亮徐浩忠陈文藻周星仲钦男卢静周晓栋
Owner JIANGYIN LIYUAN ELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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