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Breaker contact state indicating mechanism

A state indication and circuit breaker technology, applied in the direction of switchgear state indication, etc., can solve the problems of low reliability of the indication mechanism, inability to clearly distinguish, easy wear of the indication parts, etc., to achieve improved indication accuracy, high recognition, The effect of prolonging the service life

Active Publication Date: 2015-05-20
FORETECH ELEC APP JIANGSU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing problems are: the action reliability of the indicating mechanism is not high, the ejector rod is easy to tilt, and after using for a period of time, the indicating parts are easy to wear, which makes it impossible to clearly distinguish the "opening and closing" state

Method used

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  • Breaker contact state indicating mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] Example: Combined figure 1 - Figure 4 Shown is a specific implementation of the circuit breaker contact state indication mechanism of the present invention, which consists of a state indication window (not shown in the figure) arranged on the circuit breaker casing and an indicator 1, Base frame 2, ejector rod 3, torsion spring 4, spring 5, roller 6, moving contact 7, screw 9 and nut 10 are composed of these components.

[0023] first combine figure 1 , figure 2 As shown, the upper part of the base frame 2 in this embodiment is symmetrically provided with two pivotal seats 2c, and the indicator 1 is pivotally installed between the two pivotal seats 2c through screws 9 and nuts 10, wherein The screw 9 serves as a pivot, and the torsion spring 4 is sheathed on it, and the two ends of the torsion spring 4 are respectively abutted against the indicator 1 and the base frame 2 . The base frame 2 below the indicator 1 is integrally provided with a middle plate 2a...

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Abstract

The invention discloses a breaker contact state indicating mechanism, which comprises a state indicating window arranged on a breaker shell, and an indicating part, a base frame, a mandril and a moving contact which are arranged in the breaker shell. The breaker contact state indicating mechanism is characterized in that the indicating part is pivoted to the upper part of the base frame; a pivot is sleeved with a torsional spring; two ends of the torsional spring are respectively pressed against the indicating part and the base frame; the base frame is provided with a limiting part for limiting the radial movement of the mandril; the mandril is accommodated in the limiting part; the top of the mandril is opposite to the above indicating part, and the bottom of the mandril is pressed against the moving contact and moves vertically under the drive of the moving contact so as to drive the indicating part to turn; the indicating part is provided with indicating marks corresponding to a separating state and a closing state of a breaker; and the two indicating marks are alternately displayed on the indicating window through the turning and resetting of the indicating part. Compared with the prior art, the breaker contact state indicating mechanism has the advantages that the separating and closing states are easily distinguished, the structure is stable, and the working reliability is high.

Description

technical field [0001] The invention relates to a circuit breaker contact state indication mechanism. Background technique [0002] At present, with the development of low-voltage electrical appliances and the popularization of rural power grid transformation, the automatic reclosing circuit breaker is a breakthrough in traditional safety protection devices. Intelligent and safe electrical products. [0003] The existing contact state indication mechanism of the above-mentioned circuit breaker products is usually too simple, and is often composed of an indicator, a push rod and a spring. ) represents the opening state, concave (the indicator is not in the hole) or flat (the indicator is flat in the hole) represents the closing state. Existing problems are: the action reliability of the indicating mechanism is not high, the ejector rod is easy to tilt, and after a period of use, the indicating part is easy to wear, resulting in the inability to clearly distinguish the "open...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/04
Inventor 曹兵兵种彪杨海军赵军
Owner FORETECH ELEC APP JIANGSU CORP
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