A circuit breaker with arc extinguishing function

A circuit breaker and functional technology, applied in the direction of circuits, electrical components, electric switches, etc., can solve problems such as poor safety performance, impact on the service life of circuit breakers, delay in combination and breaking time of circuit breakers, etc., to improve arc extinguishing efficiency, Effect of improving uniformity and prolonging service life

Active Publication Date: 2019-05-03
国网河南省电力公司武陟县供电公司 +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the circuit breaker is combined and broken by a touch switch, there will be an arc in the process of combining and breaking the circuit breaker, which will delay the combination and breaking time of the circuit breaker, and burn the contacts of the touch switch of the circuit breaker, which is safe. The performance is not strong, and the service life of the circuit breaker is also affected

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
  • A circuit breaker with arc extinguishing function
  • A circuit breaker with arc extinguishing function
  • A circuit breaker with arc extinguishing function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] like Figure 1-3 The shown circuit breaker with arc extinguishing function includes a casing 1, a movable contact 2 and a static contact 3, and an arc extinguishing chamber arranged inside the casing 1, and the arc extinguishing chamber includes an insulating box 4 And the metal grid 5, the metal grid 5 is provided with a through groove for the moving contact 2 to move up and down, and the static contact 3 is located below the through groove; the edge of the metal grid 5 is connected to the insulating box 4, The metal grid 5 has a stepped structure, and the thickness of the distal end of the metal grid 5 relative to the static contact 3 is greater than the thickness of the proximal end; the surface of the metal grid 5 is provided with a number of protrusions 51, and the adjacent metal grids 5 The protrusions 51 are arranged oppositely.

[0013] The side wall of the insulating box 4 is a ceramic layer 41 , the ceramic layer 41 is a sandwich structure, and the sandwich i...

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 relates to a circuit breaker with an arc extinguishing effect. The circuit breaker comprises a shell, a moving contact, a fixed contact and an arc extinguishing chamber arranged in the shell, wherein the arc extinguishing chamber comprises an insulating box body and metal grid plates; a through groove for moving the moving contact up and down is reserved in each metal grid plate; thefixed contact is located at the lower part of the through groove; the edge parts of the metal grid plates are connected with the insulating box body; the metal grid plates are of a stepped structure;the thickness of a far end, relative to the fixed contact, of each metal grid plate is greater than that of a near end; a plurality of bumps are arranged on the surfaces of the metal grid plates; andthe bumps on the adjacent metal grid plates are oppositely arranged. The circuit breaker is provided with the arc extinguishing chamber, so that the circuit breaker can play a quick arc extinguishingrole in arcs and the service life of the circuit breaker is prolonged.

Description

technical field [0001] The invention relates to a circuit breaker with arc extinguishing function, which belongs to the field of electric equipment. Background technique [0002] A circuit breaker is a commonly used electrical appliance in power applications and power distribution lines. Its main function is to protect the safety of electrical lines and equipment. When an electrical line or electrical equipment is overloaded or short-circuited, it can ensure And the security of the device is therefore widely used. However, since the combination and breaking of the circuit breaker is realized by a tact switch, there will be arcs during the combination and breaking process of the circuit breaker, which will delay the combination and breaking time of the circuit breaker, and burn the contacts of the tact switch of the circuit breaker. The performance is not strong, and the service life of the circuit breaker is also affected. SUMMARY OF THE INVENTION [0003] In order to so...

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 Patents(China)
IPC IPC(8): H01H9/36H01H9/52
CPCH01H9/36H01H9/52
Inventor 李廷辉陶贝贝王延军秦江平
Owner 国网河南省电力公司武陟县供电公司
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap