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

Repulsive clamping static contact structure of low-voltage circuit breaker

A low-voltage circuit breaker and static contact technology, which is applied to circuit breaker contacts, circuit breaker components, etc., can solve problems such as wear of the dynamic and static contacts of the circuit breaker, accelerated material migration of the dynamic and static contacts, and impact on the life of the dynamic and static contacts. , to achieve the effect of improving contact life, low production cost and simple installation

Active Publication Date: 2010-07-21
EATON HUINENG LOW-VOLTAGE ELECTRICAL (JIANGSU) CO LTD
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the circuit breaker breaks the current, an arc is generated between the moving and static contacts, which will cause wear to the moving and static contacts of the circuit breaker, and accelerate the migration of the moving and static contacts, which will affect the life of the moving and static contacts
At present, when the breaking capacity of the molded case low-voltage circuit breaker is high, its static contact is generally a U-shaped structure that can be repelled. Generally, copper braided wire welding is used to connect the static contact with the connection row of the incoming line, but welding will damage the copper braided wire, and the resistance of the welding place is high, causing the temperature of the circuit breaker to rise during operation.

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
  • Repulsive clamping static contact structure of low-voltage circuit breaker
  • Repulsive clamping static contact structure of low-voltage circuit breaker
  • Repulsive clamping static contact structure of low-voltage circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Such as Figure 1-2 As shown, the present invention is composed of a bracket 1, a static contact 2, a compression spring 3, a tension spring 5, a positioning shaft 4 and a connecting row 6. The two ends of the positioning shaft 4 are fixed on the bracket 1, and the middle of the positioning shaft 4 passes through the The static contact 2 and the compression spring 3 respectively arranged on both sides of the static contact 2, the compression spring 3 is enveloped in the bracket 1 and makes the connecting row 6 press the static contact 2 tightly, and the free end 22 of the static contact 2 is arranged on the bracket In the through groove of the bottom wall 11 of 1, the extension spring 5 is located in the first through groove 111 of the bracket 1 and its hanging angle 51 is fixed on the first boss 112 in the first through groove 111, the other of the extension spring 5 The hanging angle 52 passes through another through groove of the bottom wall 11 of the bracket 1 and 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 discloses a repulsive clamping static contact structure of low-voltage circuit breaker. The two ends of a locating shaft are fixed on a support, the middle of the locating shaft penetrates a static contact and pressure springs which are respectively arranged at the two sides of the static contact, the pressure spring is enveloped in the support and causes a connector row to compact the static contact, the free end of the static contact is arranged in a through slot on the bottom wall of the support, a tension spring is arranged in a first through slot of the support and corner approach thereof is fixed on a first boss in the first through slot, and the other corner approach of the tension spring penetrates the other through slot on the bottom wall of the support and is fixedly connected with the free end of the static contact. The static contact structure of the invention is modularized, clamping structure is adopted to realize electrical connection between static contact and inlet wire row, contact resistance is less, service life of static contact of circuit breaker can be prolonged, assembly is simple, and production cost is low.

Description

technical field [0001] The invention relates to a static contact part of a molded case low-voltage circuit breaker. Background technique [0002] The electrical connection of the conductive system of the molded case low-voltage circuit breaker generally includes: the connection between the incoming line bar and the static contact, the connection between the moving and static contacts, the connection between the moving contact and the heating element, and the connection between the heating element and the outlet line, among which The connection of moving and static contacts is the most critical part of the internal electrical connection of the circuit breaker. When the circuit breaker breaks the current, an arc is generated between the moving and static contacts, which will cause wear to the moving and static contacts of the circuit breaker, and accelerate the migration of the moving and static contacts, which will affect the life of the moving and static contacts. At presen...

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): H01H73/04
Inventor 任飞陈咸胡义琴
Owner EATON HUINENG LOW-VOLTAGE ELECTRICAL (JIANGSU) CO LTD
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