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

Current-limiting operating mechanism of circuit breaker

A technology of operating mechanism and circuit breaker, applied in the direction of protection switch operation/release mechanism, etc., can solve problems such as instability, and achieve the effect of reducing frictional resistance, increasing flexibility, and reducing motion friction

Pending Publication Date: 2020-03-31
JIANGSU DAQO KFINE ELECTRIC
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the tripping process of the invention, the trip plate needs to rotate the semi-shaft of the opening and needs to overcome the friction between the bracket and the semi-shaft of the opening, which has a certain instability.

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
  • Current-limiting operating mechanism of circuit breaker
  • Current-limiting operating mechanism of circuit breaker
  • Current-limiting operating mechanism of circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The assembly structure of the specific embodiment of the present invention can be found in figure 1 and figure 2 , mainly including jumper assembly 1, lower link 2, opening half shaft 3 and main shaft 4. Wherein the main shaft 4 abuts against the lower connecting rod 2 , the lower connecting rod 2 abuts against the tripping assembly 1 , and the tripping assembly 1 abuts against the opening half shaft 3 . Wherein, the linkage relationship between the main shaft and the lower link belongs to the category of the prior art (refer to the Chinese patent whose authorization number is CN101373686B), and will not be repeated here. The specific structural relationship of the above components is described in detail below.

[0033] From figure 2 From the perspective of the cross-section of A-A in the middle, the specific working state of the specific embodiment of the present invention can be found in Figure 3 to Figure 5 . in image 3 It is a schematic diagram of the read...

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 current-limiting operating mechanism of a circuit breaker. The mechanism comprises a main shaft, an opening half shaft, a lower connecting rod and a jump pin assembly. When the circuit breaker is short-circuited, the main shaft, the lower connecting rod, the jump pin assembly and the opening half shaft are linked in sequence to protect limit current of the circuit breaker. The mechanism is characterized in that the the jump pin assembly comprises a support, a jump pin plate, a first rotating shaft, a second rotating shaft and an elastic piece; the first rotating shaft penetrates through the support; the support can rotate along the first rotating shaft; a second rotating shaft is arranged on the support; the second rotating shaft penetrates through one end of thejump pin plate; and an elastic piece is arranged between the other end of a tripping plate and the support, the elastic piece enables the tripping plate to abut against the opening half shaft in theclosing state, and when the circuit breaker is short-circuited, the elastic piece pushes the tripping plate to rotate, so that the tripping plate is separated from the opening half shaft. The inbvention is stable in work, rapid in tripping and accurate in current limiting.

Description

technical field [0001] The invention belongs to the technical field of a circuit breaker operating mechanism, and in particular relates to a current limiting operating mechanism for a circuit breaker. Background technique [0002] The short-circuit protection of the frame circuit breaker usually adopts an electronically controlled release. The electronic control unit of this release requires half a data sampling period of the current wave. Due to the too long sampling period, the electronically controlled circuit breaker cannot be disconnected. large short circuit current. In order to overcome the deficiency of the electronically controlled release and to break a larger short-circuit current, a new current limiting function must be added to the circuit breaker. [0003] There are two ways to implement current limiting technology in molded case circuit breakers: one is to use electromagnetic trippers, and the other is to use gas-generating materials to decompose gas at high ...

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): H01H71/10
CPCH01H71/10
Inventor 陈刚戴罡陈大江王卫国
Owner JIANGSU DAQO KFINE ELECTRIC
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