A kind of AC and DC fan control device

A fan control, AC and DC technology, applied in pump control, non-variable-capacity pumps, machines/engines, etc., can solve problems such as the inability of AC and DC cooling fan control circuits, and the improvement of motor fault detection.

Active Publication Date: 2017-08-08
SANJU TECH MOTOR SHENZHEN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The AC / DC cooling fan control circuit disclosed above cannot detect motor faults and improve user experience

Method used

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  • A kind of AC and DC fan control device
  • A kind of AC and DC fan control device
  • A kind of AC and DC fan control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Please refer to Figure 1-5 , Embodiment 1 of the present invention is:

[0084] An AC / DC fan control device provided by the present invention includes an AC / DC voltage input terminal, a rectifier circuit, a power supply voltage stabilization integrated circuit, a signal input terminal, a first optocoupler relay, a first integrated chip, a motor, a Hall amplifier circuit and second optocoupler relay;

[0085] The AC and DC voltage input terminal is connected to the power supply voltage stabilization integrated circuit through a rectification circuit;

[0086] The power supply voltage stabilization integrated circuit, the motor and the Hall amplifier circuit are respectively connected to the first integrated chip;

[0087] The signal input end is connected to the first integrated chip through the first optocoupler relay; the first integrated chip is connected to the signal input end through the second optocoupler relay.

[0088] Such as figure 2 As shown, the AC and...

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PUM

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Abstract

The invention belongs to the field of electric appliance control, in particular to an AC / DC fan control device. Compared with the traditional fan control circuit, the signal input terminal, the first optocoupler relay and the second optocoupler relay are added, and the signal input terminal is connected to the first integrated chip through the first optocoupler relay to realize pulse speed regulation input. An integrated chip adjusts the rotation speed of the motor according to the duty cycle of the pulse. The higher the duty cycle, the faster the speed. On the contrary, the lower the duty cycle, the slower the speed. It can be adjusted from stop to full speed; The relay is connected to the signal input terminal to send parameters such as the motor’s rotation speed to the signal input terminal. By comparing the signal sent by the signal input terminal with the feedback signal, the fault detection of the motor can be realized.

Description

technical field [0001] The invention belongs to the field of electric appliance control, in particular to an AC / DC fan control device. Background technique [0002] At present, the existing fans can be mainly divided into three categories: DC fans, AC fans and AC-DC fans. These three types of fans have their own advantages and disadvantages. The DC fan has high working efficiency and no noise, but it needs to be equipped with a power conversion to work normally; the AC fan is more convenient to install and the cost is relatively low, but the working efficiency is low and it is noisy; AC and DC fans integrate the advantages of DC fans and AC fans, and become the most popular fans on the market. The control device of the AC and DC fan is an important part of realizing the work of the AC and DC fan. [0003] The Chinese patent document with the application number: 201320014189.0 discloses an AC / DC cooling fan control circuit, which includes a rectifier unit electrically conne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00
Inventor 詹逸郎项明诚陈万安
Owner SANJU TECH MOTOR SHENZHEN CO LTD
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