Split thermomagnetic adjustable release device for circuit breaker

A circuit breaker and split-type technology, which is applied in the field of releases, can solve problems such as low cost performance, cumbersome assembly process, and complex overall structure.

Active Publication Date: 2006-08-09
ZHEJIANG CHINT ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The tripping system of the current high-current circuit breaker is an intelligent tripper composed of electronic modules, transformers and flux converters. Although this kind of tripper can also be made of components The body is adjustable, but its parts cost is high and the cost performance is low, which is not conducive to market competition. The buckle mechanism and the action mechanism are not separated, the overall structure is complex, the interchangeability is poor, the assembly process is cumbersome, and it is not conducive to production, storage and management

Method used

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  • Split thermomagnetic adjustable release device for circuit breaker
  • Split thermomagnetic adjustable release device for circuit breaker
  • Split thermomagnetic adjustable release device for circuit breaker

Examples

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Embodiment Construction

[0029] refer to figure 1 , the split thermal-magnetic adjustable release of the circuit breaker of the present invention includes a base 1 and a tripping system 65 , and the tripping system 65 is fixed on the base 1 through a mounting plate 17 .

[0030] refer to figure 2 , image 3 , The tripping system 65 includes a draw bar 20, a push rod 8, a knob assembly 37 for adjusting the overload current, an electromagnetic tripping device 10 and a thermal tripping device 11 corresponding to each phase current. In this example, the circuit breaker has a three-phase configuration.

[0031] With reference to Fig. 4, be provided with a plurality of mounting holes in the mounting plate 17, wherein hole 25 is used for the guide action when push rod 8 is done axial movement, the length of positioning hole 25 is preferably greater than the thickness of mounting plate, one of the simplest The method is to set a circle of boss around the positioning hole 25 . The hole 29 is used for fixi...

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PUM

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Abstract

Being applicable to breaker in low voltage and large current, the disclosed trip includes a trip system installed on a base through a mounting plate. The trip system is composed of following parts: a draw bar coupled to first bracket fixed on the mounting plate; a push rod setup on location hole of the mounting plate; electromagnet trip corresponding to each phase current; thermal trip corresponding to each phase current; and knob subassembly in use for adjusting position in axial direction of the draw bar. Electromagnet trip and thermal trip are installed on each phase. Thus, when over loading happens on any phase, relevant electromagnet trip and thermal trip will take action. Features are: shortening time for producing and assembling the improved and simplified trip effectively, convenient for productive storage and management.

Description

technical field [0001] The invention relates to a tripper for a low-voltage high-current circuit breaker, in particular to a tripper for a molded case circuit breaker. Specifically, it is a split thermal-magnetic adjustable release for circuit breakers. Background technique [0002] The tripping system of the current high-current circuit breaker is an intelligent tripper composed of electronic modules, transformers and flux converters. Although this kind of tripper can also be made of components The body is adjustable, but its parts cost is high and the cost performance is low, which is not conducive to market competition. The buckle mechanism is not separated from the action mechanism, the overall structure is complex, the interchangeability is poor, and the assembly process is cumbersome, which is not conducive to production, storage and management. Contents of the invention [0003] The present invention aims to solve the above-mentioned defects in the prior art, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/12H01H71/14H01H71/24H01H73/48
Inventor 殷炳忠李俐周小林郭德鑫
Owner ZHEJIANG CHINT ELECTRIC CO LTD
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