Air circuit breaker and breaking spring of air circuit breaker

A technology for air circuit breakers and break springs, which is applied to high-voltage air circuit breakers, circuits, electrical components, etc., and can solve the problems of complicated process of break spring 137, difficulty in obtaining a compact structure, difficulty in designing tool installation, etc.

Active Publication Date: 2011-09-21
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the space for assembling should be fixed between the connecting shaft 136 and the end of the frame 109, which makes it difficult to obtain a compact structure
[0014] In particular, since the switching mechanism part 102 has multiple components, it is difficult to obtain a sufficient space between the connecting shaft 136 and the end of the frame 109, so the structure of the tool for stretching the trip spring 137 is complicated, causing Difficulty designing the tool and the complex process of installing the break spring 137

Method used

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  • Air circuit breaker and breaking spring of air circuit breaker
  • Air circuit breaker and breaking spring of air circuit breaker
  • Air circuit breaker and breaking spring of air circuit breaker

Examples

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Embodiment Construction

[0042] An air circuit breaker according to the present invention will now be described in detail with reference to the accompanying drawings.

[0043] Such as Figures 6 to 8 As shown, the air circuit breaker according to the present invention includes a switching mechanism part 2 that switches the circuit by rotating the movable contactor 38 so that the movable contactor 38 contacts or separates from the terminal 39 .

[0044] The switching mechanism part 2 includes: a cam 22, which is connected with the rotating shaft 21 and rotates manually or automatically; a driving lever 24, which is rotatably installed on the frame 9 supporting the two sides of the switching mechanism part 2, including a lever roller 23, And when the cam 22 rotates, the lever roller 23 is driven to rotate along the curved surface of the cam 22; the closing spring 25, one end of which is connected to the lower end portion of the driving lever 24, and the other end is supported by the frame 9, and due to ...

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PUM

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Abstract

An air circuit breaker, a breaking spring of the air circuit breaker, and its connection method are disclosed. The air circuit breaker includes: a cam; a driving lever connected with the cam and rotated; a closing spring compressed by the driving lever; a plurality of links that transfer a driving force generated when the closing spring is stretched; a switching shaft connected with one or the links by a connection shaft and rotated according to movement of the link; and a breaking spring having a fixing hole with one side opened at one end portion thereof, so as to be fixed to the connectionshaft perpendicularly in an axial line direction of the connection shaft. A space for assembling does not need to be formed at an end portion of the connection shaft, obtaining a compact structure. In addition, a tool can be simplified, an installation can be facilitated, an assembling time can be shortened, and a fabrication cost can be reduced.

Description

technical field [0001] The present invention relates to an air circuit breaker, a circuit breaker spring of the air circuit breaker and a connecting method thereof, more particularly to an air circuit breaker capable of simply installing a circuit breaker spring, a circuit breaker spring of the air circuit breaker and a connection method thereof . Background technique [0002] Generally, an air circuit breaker is a device that interrupts a circuit (that is, blocks an electrical connection) when a load is turned on or off, when an overload occurs, when a short circuit event occurs, or when an electric leakage or electric shock occurs. [0003] Such as Figures 1 to 3 As shown, the prior art circuit breaker includes a switching mechanism component 102 that switches a circuit by moving a movable contact 138 to a terminal 139 . [0004] The switching mechanism part 102 includes: a cam 122 connected with the rotating shaft 121 and rotated manually or automatically; When the cam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/00H01H71/10H01H3/30
CPCH01H3/30H01H3/3015H01H3/46H01H31/023H01H31/026
Inventor 杨弘益李尚彻金起焕安吉荣
Owner LSIS CO LTD
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