Air-switch working-state displaying device

Abstract

The invention relates to an air-switch working-state displaying device. The air-switch working-state displaying device comprises an air switch and three groups of displaying circuits with identical circuit structures; and in order to make up and overcome the defect of no working-state display existing in the traditional air switch, the working state of the air switch can be rapidly judged by additionally installing multiple simple electronic displaying circuits to provide favorable references for electricity users to clear faults and prevented from enlarging the range of the faults or generating electric-shock accidents due to the blind operation of the electricity users. The displaying circuits not only can be used as an upgrading device for the ordinary air switch, but also can be used for researching and developing new-style air switches by using the technical scheme of the displaying circuits.

Description

technical field [0001] The invention belongs to the technical field of electronics and electric engineering, and relates to an air switch working state display device. Background technique [0002] The air switch is widely used because of its many advantages, and it basically replaces the old electric wood switch with fuse that has been used for a long time. However, in the 220V AC line, the air switch has a cold face, and its working status is not intuitive. For example, when the air switch trips at night or encounters a power outage, the power user cannot make a correct judgment for a while, especially for the short circuit of the electrical equipment. After a fault, power users are accustomed to blindly closing the switch under unknown circumstances, which is easy to cause accidents such as expansion of the fault range due to habit or wrong judgment. [0003] In order to make up for and overcome the deficiency that the existing air switch has no working state display, it...

AI Technical Summary

Problems solved by technology

However, in the 220V AC line, the air switch has a cold face, and its working status is not intuitive. For example, when the air switch trips at night or encounters a power outage, the power user cannot make a correct judgment for a while, especially for the short circuit of the electrical equipment. After a fault, power users are accustomed to closing the switch blindly under unknown circumstances, so it is easy to cause accidents such as expansion of the fault range due to habit or wrong judgment

[0003] In order to make up for and overcome the deficiency that the existing air switch has no working state display, it is necessary to develop an auxiliary device that can display the working state of the air switch. On or off, whether the output terminal of the air switch has power, etc., provide a basis or reference for power users to judge the nature of line faults more accurately, and avoid power users from expanding the scope of faults or causing electric shock accidents due to blind operations

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