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Control device of brushless direct current fan

A DC fan and control device technology, applied in pump control, non-variable pumps, machines/engines, etc., can solve problems such as inaccurate selection of wind speed

Inactive Publication Date: 2010-04-21
MIDEA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The fans on the existing market simply divide the wind speed into multiple gears. Users can only choose the wind gear close to the wind speed they want by feeling, but cannot accurately choose the wind speed they want.

Method used

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  • Control device of brushless direct current fan
  • Control device of brushless direct current fan

Examples

Experimental program
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Effect test

Embodiment

[0014] The principle diagram of the present invention is as figure 1 As shown, it includes a central control unit 1, a key circuit 2, and a remote control receiving circuit 3, wherein the signal input terminals of the central control unit 1 are connected to the signal output terminals of the key circuit 2 and the remote control receiving circuit 3 respectively, and the signal of the central control unit 1 The output end is connected to the voltage speed regulation signal input end of the brushless DC motor 4 that drives the brushless DC fan, and the speed signal output end of the brushless DC motor 4 is connected to the signal input end of the central control unit 1 .

[0015] In this embodiment, the above-mentioned central control unit 1 is a single-chip microcomputer. A display circuit 5 is also connected to the signal output end of the central control unit 1 .

[0016] The display circuit 5 includes a display driver chip and a display element, the input end of the display ...

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Abstract

The invention relates to a control device of a brushless direct current fan, which comprises a central control unit (1), a key circuit (2) and a remote control receiving circuit (3), wherein an signal input end of the central control unit (1) is connected with signal output ends of the key circuit (2) and the remote control receiving circuit (3) respectively; an signal output end of the central control unit (1) is connected with a voltage speed regulation signal input end of a brushless direct current motor (4) which drives the brushless direct current fan to run; and an rotating speed signal output end of the brushless direct current motor (4) is connected with the signal input end of the central control unit (1). Because the control device of the brushless direct current fan adopts rotating speed type keys or a potentiometer to replace the conventional windscreen selection keys, and a structure for accurately setting the rotating speed of the fan, a user can set and display the rotating speed of the fan by taking 'revolution per minute' as a unit so as to select a wind speed at will. The control device has a reasonable design and is convenient and practical.

Description

technical field [0001] The invention is a control device of a brushless DC fan, which belongs to the transformation technology of the control device of a brushless DC fan. Background technique [0002] The fans on the existing market simply divide the wind speed into multiple gears. Users can only choose the wind gear close to the wind speed they want by feeling, but cannot accurately choose the wind speed they want. Contents of the invention [0003] The object of the present invention is to provide a control device for a brushless DC fan that allows users to accurately select their desired wind speed in consideration of the above problems. The invention is reasonable in design, convenient and practical. [0004] The technical scheme of the present invention is: comprise central control unit, button circuit, remote control receiving circuit, wherein the signal input end of central control unit is connected with the signal output end of key circuit and remote control rece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
Inventor 戴修敏汪志刚
Owner MIDEA GRP CO LTD
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