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Multipolar low-voltage circuit breaker with plastic shell

A low-voltage plastic and circuit breaker technology, which is applied in the direction of protection switch operation/release mechanism, etc., can solve the problems such as the large influence of product quality assembly errors, achieve the effect of convenient assembly and use, and ensure product quality

Inactive Publication Date: 2005-11-16
ZHEJIANG CHINT ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention aims to solve the problems that the existing circuit breaker must be installed as a whole before it can be operated, and the product quality is greatly affected by manufacturing and assembly errors. It provides an improved multi-pole low-voltage plastic case circuit breaker, which will The main components are centrally installed on the base, so that the mechanism can be operated without covering the cover

Method used

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  • Multipolar low-voltage circuit breaker with plastic shell
  • Multipolar low-voltage circuit breaker with plastic shell
  • Multipolar low-voltage circuit breaker with plastic shell

Examples

Experimental program
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Embodiment Construction

[0036] Refer to attached figure 2 , 8 , a multi-pole low-voltage plastic case circuit breaker, has a molded insulating base 1, which is divided into several side-by-side chambers by a partition wall for placing each pole, and each pole includes a contact assembly 30 and A tripping assembly, each contact assembly 30 includes a hexahedral box 52 arranged in the corresponding cavity of the base, a pair of static contacts 5, 6, a fork-shaped moving contact are arranged in the hexahedral box 7 and a pair of arc extinguishing chambers, the fork-shaped moving contact 7 bridges the pair of static contacts 5, 6, the fork-shaped moving contact 7 is set on a shaft 12, and can be around the center line of the shaft Flexible rotation, the shafts 12 of each pole are vertically arranged on a common rotating shaft 13 .

[0037] refer to Figure 4 , 5 , a pair of inverted convex supports 15, 16 connect the operating mechanism 14, the rotating shaft 13 and the switching lever 19 into one b...

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Abstract

The breaker comprises the base seat, the cover, the revolution axis of the moving contact, the operation mechanism, the handle and the switching bar. The contact module and the decoupling module are setup in the base seat. The said operation mechanism, the cover, the moving contact, the decoupling module and the switching bar through the inter-electrode support piece are connected as the integrated body setup on the partition of the base seat. The operating the mechanism can also be carried out without covering the cover so as to make the assmebling and using omre convenient. The invention insures the accurate installation of each mechanism and guarantrees the quality of the product.

Description

technical field [0001] The invention relates to a multi-pole low-voltage plastic case circuit breaker. Background technique [0002] Existing multi-pole low-voltage circuit breakers, such as Chinese patent ZL 94103491.7 "A multi-pole circuit breaker with a molded insulating shell". it includes: [0003] - a base plate divided into several side-by-side compartments for housing electrodes, each electrode comprising a breaking and tripping assembly with separable contacts, [0004] - a cover mounted on the base to close the enclosure, [0005] - an operating mechanism, mounted between a pair of support plates, with a toggle mechanism connected by a connecting spring and a trip hook, [0006] - a handle is attached to the mechanism and passes through an opening in the cover for operation from the outside, [0007] - a switching lever made of insulating material as support for the movable contacts of all poles, which lever is mechanically conne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/10
Inventor 郭德鑫段育明李然李述尧
Owner ZHEJIANG CHINT ELECTRIC CO LTD