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Inductive fan safety device

A safety device and inductive technology, which is applied in the field of induction fan safety devices, can solve problems such as easy to cause danger, and the safety effect does not play a good role, so as to achieve a good safety effect

Inactive Publication Date: 2014-03-12
CHENGDU BINGUO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Common household electric fans have protective covers, but some children like to touch the rotating blades with their fingers out of naughtiness, which is likely to cause danger. However, most of the electric fan safety devices currently used are contactors. The electric fan will only cut off the power supply when it falls down, so the insurance effect does not play a very good role

Method used

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing:

[0014] Such as figure 1 As shown: the present invention is connected to the power supply through a transformer B, including an oscillating circuit, an emitter coupling trigger circuit and an energy consumption braking circuit; wherein the power input end of the oscillating circuit is connected to the output end of the transformer, and the oscillating circuit The output end of the emitter coupling trigger circuit is connected to the input end of the emitter coupling circuit, the output end of the emitter coupling circuit is connected to the input end of the energy consumption braking circuit, and the output end of the energy consumption braking circuit is connected to the fan cover.

[0015] Such as figure 2 As shown: the structure of the oscillating circuit is: one end of the low-voltage side of the transformer B is connected to one end of the fifth diode D5, and the oth...

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Abstract

The invention discloses an inductive fan safety device. The inductive fan safety device is connected with a power source through a transformer, and comprises an oscillation circuit, an emitter coupling triggering circuit and an energy consumption braking circuit, wherein the power source input end of the oscillation circuit is connected with the output end of the transformer; the output end of the oscillation circuit is connected with the input end of the emitter coupling triggering circuit; the output end of the emitter coupling triggering circuit is connected with the input end of the energy consumption braking circuit; the output end of the energy consumption braking circuit is connected with a fan outer cover. The inductive fan safety device can cut off the power source when the human body approaches the position about 1cm from the fan outer cover, force a motor to stop rotating immediately, and achieve the very good safety effect.

Description

technical field [0001] The invention relates to an electric fan safety device, and more particularly to an induction type electric fan safety device with higher sensitivity and safety factor. Background technique [0002] Common household electric fans have protective covers, but some children like to touch the rotating blades with their fingers out of mischief, which is likely to cause danger. However, most of the electric fan safety devices currently used are contactors. The electric fan will only cut off the power supply when it falls down, so the insurance effect does not play a very good role. Contents of the invention [0003] The object of the present invention is to provide an inductive fan safety device with higher sensitivity and safety coefficient in order to solve the above problems. [0004] The present invention achieves the above object through the following technical solutions: [0005] The present invention is connected to the power supply through a tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
Inventor 许璐黄大喜庞凯
Owner CHENGDU BINGUO TECH
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