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

Contact system for circuit breaker and circuit breaker

A contact system and circuit breaker technology, applied in the directions of circuit breaker contacts, circuit breaker parts, contacts, etc., can solve problems such as non-locking, poor breaking capacity, etc., and achieve the effect of avoiding current loops

Pending Publication Date: 2021-10-29
诚硕电气有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing contact system for circuit breakers has poor breaking capacity and cannot be locked

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
  • Contact system for circuit breaker and circuit breaker
  • Contact system for circuit breaker and circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0017] see figure 1 and figure 2 , the figure shows a circuit breaker, which includes a contact system, a static contact 3 that can be opened and closed with a moving contact, and a clamping member 6, and a rotating pin is pierced in the clamping member 6.

[0018] The contact system includes a rotating shaft 1, a moving contact 2 and a torsion spring. The rotating shaft 1 has a housing cavity, and a rotating pin is fixed on the rotating shaft 1 in the housing cavity. The moving contact 2 One end is rotatably installed on the rotating pin, the rotation of the rotating shaft 1 can make the moving contact 2 rotate; the moving contact is provided with a mo...

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 contact system for a circuit breaker, which comprises a rotating shaft, a moving contact and a torsional spring, wherein the rotating shaft is provided with an accommodating cavity, a rotating pin is fixedly arranged on the rotating shaft in the accommodating cavity, one end of the moving contact is rotatably arranged on the rotating pin in a penetrating manner, and the rotating shaft rotates to enable the moving contact to rotate; a movable pin is arranged below the rotating pin on the moving contact; the torsional spring is of a left-right symmetrical structure and comprises a lower end and two connecting ends located on the upper portion; the torsional spring is installed on the lower portion of the accommodating cavity of the rotating shaft, the torsional spring is located on the lower portion of the moving contact, the lower end of the torsional spring is attached to the lower surface of the accommodating cavity of the rotating shaft and can be clamped on the lower surface in a pivoted mode, the two connecting ends of the torsional spring are symmetrically pressed on the outer circumferences of the two ends of the movable pin upwards respectively, and the rotating pin, the movable pin and the torsional spring are matched with the moving contact and the rotating shaft to form a device for locking the contact and preventing the contact from rebounding.

Description

technical field [0001] The invention relates to a contact system for a circuit breaker. Background technique [0002] A circuit breaker, also known as a common air switch, is a switch that will automatically disconnect as long as the current in the circuit exceeds the rated current. The air switch is a very important electrical appliance in the low-voltage power distribution network and electric drive system. The circuit breaker integrates control and multiple protection functions. Serious overload and undervoltage protection, but also can be used to start the motor infrequently. [0003] The contact system is the mechanically linked contact of the opening and closing mechanism of the main circuit of the circuit breaker. It is mainly used for displaying the opening and closing status of the circuit breaker. Related circuits implement control or interlock. [0004] The existing contact system has the problems of poor breaking capacity and inability to lock. Contents of t...

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): H01H73/04H01H71/10H01H1/52
CPCH01H73/04H01H71/10H01H1/52
Inventor 刘艳辉边玉兴赵坤
Owner 诚硕电气有限公司
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