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A molded case circuit breaker with hinged drawbar

A technology of molded case circuit breaker and drawbar, which is applied in the direction of adjusting protection switch conditions, etc., can solve the problems of high cost and complicated method, and achieve the effect of manual or automatic adjustment, overload adjustment or temperature adjustment.

Active Publication Date: 2015-12-16
DELIXI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Patent No. 201120204044.8 "Moulded Case Circuit Breaker", which also involves the adjustment of the drawbar, but this method is complicated and costly

Method used

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  • A molded case circuit breaker with hinged drawbar
  • A molded case circuit breaker with hinged drawbar
  • A molded case circuit breaker with hinged drawbar

Examples

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Embodiment Construction

[0014] Such as figure 2 As shown, a molded case circuit breaker with a hinged drawbar includes a base 3, a latch, a drawbar 1 and a bimetal 2, and the bimetal 2 can realize that the action of the drawbar 1 drives the lock to make the Circuit breaker tripping, the above-mentioned technical features are also common in the prior art, so we will not describe them in detail in this embodiment 1 and 2. In this embodiment 2, as image 3 with Figure 4 As shown, the drawbar 1 is a hinge-type drawbar 1, including a drawbar movable page 11 and a drawbar fixed page 12, the drawbar movable page 11 and the drawbar fixed page 12 are hinged settings that can be positioned at any angle, The drawbar fixed leaf 12 is connected with the lock, and by adopting a hinge-type new structure scheme, the jumper in the circuit breaker mechanism can be locked, and the movable leaf 11 of the drawbar can be rotated to control the movement of the drawbar 1. The opening angle changes the working stroke of ...

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Abstract

The invention relates to a molded case circuit breaker and especially discloses a hinged draw bar circuit breaker capable of line and equipment overload protection by using a bimetallic strip. The technical scheme adopted in the invention is as follows: the molded case circuit breaker with a hinged draw bar is characterized in that the draw bar is a hinged draw bar and comprises a draw bar movable sheet and a draw bar fixed sheet, the draw bar movable sheet and the draw bar fixed sheet are hinged and can be positioned at any one angle, and the draw bar fixed sheet is connected with a lock catch. By adopting the above scheme, the disadvantages in the prior art can be overcome, not only can the jump buckle in a circuit breaker mechanism be locked, the field angle of the draw bar can also be controlled through the rotation of the sheets, and the working stroke of the bimetallic strip can be changed, so that the hand-operated or automatic adjustment can be realized, and the over adjustment or temperature adjustment with different current specifications can be met.

Description

technical field [0001] The invention relates to a molded case circuit breaker, in particular to a hinge type draw bar circuit breaker which utilizes a bimetal sheet to realize overload protection for circuits and equipment. Background technique [0002] In the molded case circuit breaker, when the current passing through the circuit breaker is greater than the rated current, the bimetal sheet is heated and bent, and the bending amount is greater than the gap between the bimetal sheet and the drawbar, and the drawbar is pushed forward by the bimetal sheet. The rotation trips the circuit breaker, thereby achieving overload protection for the line and equipment; therefore, the gap between the bimetal and the drawbar determines the overload tripping characteristics and rated current value in the molded case circuit breaker. However, the drawbar of the traditional molded case circuit breaker is integrated, such as figure 1 As shown, in order to adjust, the working stroke of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/74
Inventor 郑杰丁其零
Owner DELIXI ELECTRIC