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

Molded case circuit breaker with contact on mechanism

A technology of contact mechanism and circuit breaker, applied in the direction of operation/release mechanism of protection switch, circuit, parts of protection switch, etc.

Active Publication Date: 2009-02-11
LSIS CO LTD
View PDF2 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This may cause the problem of not being able to perform a contact operation when the contacts are in contact and thus in a conducting state

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
  • Molded case circuit breaker with contact on mechanism
  • Molded case circuit breaker with contact on mechanism
  • Molded case circuit breaker with contact on mechanism

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0084] According to the first embodiment of the present invention, under the condition that the molded case circuit breaker with the contact mechanism should be tripped, when the contacts are not separated from each other due to contact melting adhesion etc., even if the user tries to move the handle To the off (reset) position, the reset operation cannot be performed. If the handle 6 is released, the closed position is indicated, thus notifying the user that the molded case circuit breaker is conductive. Therefore, the user can properly take required actions for safety.

[0085] For example, by manipulating a previous stage circuit breaker device such as the main circuit breaker in the previous stage near the supply side, the user can disconnect any further overcurrent conduction and resort to disconnecting the molded case circuit breaker that caused the confusion Actions for wiring, replacement, maintenance, etc.

[0086] Figure 8 is a perspective view illustrating main ...

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

A molded case circuit breaker having a contact on mechanism which can perform a trip operation and automatically rotates the handle to the on position or a position toward the on position if the handle is manipulated to move to the off (or reset) position in a state that the contacts are melt-adhered to each other, the contact on mechanism, including: a contact on plate which is vertically movable by being guided according to the operation of the switching mechanism, a trip bar that drives the restricting unit to a releasing position, a lever connected to the handle and that provides a pivot point of the handle, a lever pin fixed to the lever, for driving the restricting unit to the releasing position by pressing the trip bar, and thereby operating the switching mechanism to the trip position, and a trip spring providing an elastic driving force for enabling the switching mechanism to operate to the trip position when the restricting unit is moved to the releasing position.

Description

[0001] related application [0002] This disclosure is related to Korean Applications Nos. 10-2007-0080900, 10-2007-0080902, and 10-2007-0080903 filed on Aug. 10, 2007, which are the subject matter contained in the Priority Document, the entire contents of which are hereby incorporated by reference refer to. technical field [0003] The present invention relates to molded case circuit breakers, and more particularly, to molded case circuit breakers having contact mechanisms. Background technique [0004] Generally, a molded case circuit breaker is a protective device that protects electrical load equipment and wires against overload or overcurrent that may occur in the circuit by automatically breaking the circuit. In such molded case circuit breakers, the position of the handle manually manipulated by the user can be divided by the switching mechanism into a mechanism trip position (ie, TRIP position), a circuit disconnection position (ie, OFF position, in other words RES...

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
IPC IPC(8): H01H71/04H01H71/50H01H71/62
CPCH01H71/123H01H71/501H01H71/52H01H73/50
Inventor 宋重千林祥桓姜圣宇
Owner LSIS CO LTD
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