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Ion fan protection circuit

A protection circuit, ion fan technology, applied in emergency protection circuit devices, protection against overcurrent, static electricity, etc., can solve the problems of no protection circuit, complicated detection, burning of ion fan chips, etc.

Pending Publication Date: 2021-08-06
SHENZHEN BAIGUANG ELECTRONIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the existing ion fans are equipped with multi-channel fans, the detection is relatively complicated, so generally there is no protection circuit or only one general protection device
When one of the multi-channel fans is abnormal, the current of the protection point does not reach the set value and the protection cannot be triggered, and the chip inside the ion fan may burn out, resulting in stoppage of work and endangering production safety

Method used

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Embodiment Construction

[0023] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] One of the core ideas of the embodiment of the present invention is that through the acquisition unit 5, the filter unit 6 and the processing unit U1; wherein the processing unit U1 includes a reference current value; wherein the fan group 4 includes at least one fan; the The collection unit 5 is connected to the fan group 4, and the filter unit 6 is connected between the collection unit 5 and the fan group 4; the collection unit 5 collects the current signal of the fan group 4 and transmits it to the The filtering unit 6; the filtering unit 6 performs filtering processing on the current signal; the processing unit U1 is respectively connected to the filtering unit 6 and the control unit U2, and the filtering unit 6 filters ...

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Abstract

The embodiment of the invention provides an ion fan protection circuit. The ion fan protection circuit comprises an acquisition unit, a filtering unit and a processing unit; the acquisition unit is connected with a fan group, acquires a current signal of the fan group and transmits the current signal to the filtering unit; the filtering unit is connected between the acquisition unit and the fan group, receives the current signal, filters the current signal and transmits the filtered current signal to the processing unit; and the processing unit is connected with the filtering unit and the control unit, receives the filtered current signal, and sends an enable signal to the control unit when the current value of the current signal exceeds a reference current value, so that the control unit stops supplying power to the fan group. The operation states of the multiple fans can be monitored in real time through the acquisition unit, the filtering unit and the processing unit, when any fan operates abnormally, the processing unit sends out an instruction in time to turn off the output of the control unit, short circuit of a circuit is avoided, and a host is protected from being burnt by current.

Description

technical field [0001] The invention relates to the technical field of ion fan protection circuits, in particular to an ion fan protection circuit. Background technique [0002] Faults and hazards caused by static electricity are commonly known as electrostatic disturbances. From a traditional point of view, it is one of the main inducing factors of fire and explosion accidents in thermal power, chemical, and petroleum industries; it is also a hidden danger factor for quality and safety accidents in the processing of textile industries such as flax and chemical brazing; or it causes electric shock to the human body. important cause of harm. Therefore, electrostatic protection in the process of industrial production is becoming one of the safety issues that are increasingly attracting attention and attention in various industries. [0003] At present, static electricity is generally eliminated by ion fans, which have outstanding static removal performance, small size, light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05F3/04H02H3/08H02H7/085
CPCH02H3/08H02H7/085H05F3/04
Inventor 李智顺
Owner SHENZHEN BAIGUANG ELECTRONIC TECH CO LTD
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