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

Circuit breaker and control method thereof

A circuit breaker and circuit technology, which is applied in the field of circuit breakers capable of extinguishing arcs, can solve problems such as the limitation of withstand voltage levels of electronic components, the electronic arc extinguishing method has no physical isolation, and cannot withstand high voltages, etc., to achieve the effect of prolonging product life

Pending Publication Date: 2020-10-20
MORNSUN GUANGZHOU SCI & TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this type of electronic arc extinguishing scheme is that it can feed back the current of the inductance in the circuit to the input terminal through the freewheeling circuit of the arc extinguishing circuit installed in the circuit breaker, and the energy in the circuit can be fully released. There is no arc, but the electronic arc extinguishing method has no physical isolation. When the switch is turned off, there is an electrical connection, and there is a reverse leakage current when the switch is turned off. Due to the limitation of the withstand voltage level of the electronic components, it cannot withstand high voltage.

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 and control method thereof
  • Circuit breaker and control method thereof
  • Circuit breaker and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0057] like Image 6 As shown, it is a structural diagram of the mechanical operating mechanism of the arc extinguishing device of the circuit breaker of the present invention, combined with Figure 4 As shown, a circuit breaker includes an arc extinguishing device. The arc extinguishing device includes an arc extinguishing circuit and a mechanical operating mechanism linked with the arc extinguishing circuit. The mechanical operating mechanism includes a movable contact 1, a movable contact spring 2, a connecting rod 3, Moving contact spring 4, moving contact 5, static contact 6, static contact 7, static contact 8, static contact 9, the same structure is arranged in parallel, moving contact 1', moving contact spring 2' , Connecting rod 3', moving contact spring 4', moving contact 5', static contact 6', static contact 7', static contact 8', static contact 9'.

[0058] When the connecting rod 3 moves down, it moves down with the moving contact 1, the moving contact spring 2, t...

no. 2 example

[0065] like Figure 7 As shown, it is an embodiment of the present invention that includes a movable contact 1, a movable contact 5 and a fixed contact (also called a static contact) 6. Under the action of an external force, the movable contact 5 moves toward the movable contact 1 , closed, equivalent to Figure 4 The middle switch J2 (J4) is closed first, and the external force continues to be applied, and the movable contact 5 and the movable contact 1 move and close to the fixed contact 6, which is equivalent to Figure 4 The middle switch J1 (J3) is closed at the end; when the external force is released, the movable contact 5, the movable contact 1 and the fixed contact 6 are disconnected first, which is equivalent to Figure 4 The middle switch J1 (J3) is disconnected first, and then the movable contact 5 and the movable contact 1 are disconnected again, which is equivalent to Figure 4 The back of the middle switch J2 (J4) is disconnected. Through the arc extinguishin...

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 which comprises a movable contact 1, a movable contact spring 2, a connecting rod 3, a movable contact spring 4, a movable contact 5, a static contact 6, a static contact 7, a static contact 8 and a static contact 9. The circuit breaker is characterized in that a height difference h is formed between the bottom surface of the movable contact 1 and the bottom surface of the movable contact 5; and arc extinguishing circuits are arranged between the movable contact and the static contact and between the movable contact and the static contact which are parallel and have the same structure. By means of the design, switches J1 and J2 can be switched off and switched on in a timing sequence, energy lossless recovery in the circuit is achieved in cooperation with the arc extinguishing circuits, a good arc extinguishing effect is achieved, physical isolation in the circuit is guaranteed, and the service life of a product is prolonged.

Description

technical field [0001] The present invention relates to circuit breakers, in particular to circuit breakers capable of extinguishing arcs. Background technique [0002] A circuit breaker is a switching device that can close, carry and break current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a specified time. However, with DC power supply, when the power supply is turned on and off, the load in the circuit will generate an induced current equivalent to an inductance. When the circuit breaker is disconnected, because the current of the inductance cannot change suddenly, the accumulated energy cannot be released. The air is broken down at the head, an arc is generated, and energy is released. [0003] There are mainly two kinds of existing arc extinguishing methods, one is physical arc extinguishing method, and the other is electronic arc extinguishing method. The first physical arc extinguishing method, suc...

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): H01H73/18H01H73/04H01H71/10
CPCH01H71/10H01H73/04H01H73/18
Inventor 尹向阳
Owner MORNSUN GUANGZHOU SCI & TECH
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