CN1995758A - Linear temperature speed controller for fan - Google Patents
Linear temperature speed controller for fan Download PDFInfo
- Publication number
- CN1995758A CN1995758A CNA2006100326355A CN200610032635A CN1995758A CN 1995758 A CN1995758 A CN 1995758A CN A2006100326355 A CNA2006100326355 A CN A2006100326355A CN 200610032635 A CN200610032635 A CN 200610032635A CN 1995758 A CN1995758 A CN 1995758A
- Authority
- CN
- China
- Prior art keywords
- fan
- control
- rotation speed
- control unit
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention relates to a linear control device for fan rotating speed and the method, mainly characterized in that by finally controlling components to work in the linear working area, the supply current of fan is controlled in line to change the rotating speed of fan in line according to the temperature change so as to avoid the jumping of fan rotating speed generated by rotating speed control method of digital segmentation. It is provided with simple control circuit and low cost.
Description
Affiliated technical field
The present invention relates to a kind ofly rotation speed of the fan be carried out the device of linearity control, can be widely used in rotation speed of the fan is carried out based on temperature controlling according to temperature.
Background technique
Existing rotation speed of the fan temperature control method, comprise two kinds of digital controlling method and analog controlling methods, wherein, the digital controlling party genealogy of law is carried out segmentation control according to the temperature conditions of controlled environment, can cause like this in the transition point of temperature section, rotation speed of the fan frequently switching at a high speed and between the low speed, has influenced the working life of fan; And analog controlling party rule has used more electronic parts and components to design, circuit complexity, with high costs.
Summary of the invention
For overcoming the above-mentioned shortcoming of present rotation speed of the fan temperature-control circuit, the present invention proposes a kind of linear revolution speed control device that constitutes by simulation electronic component, this installs, and not only circuit is simple, with low cost, and has the linearity control characteristic, makes the rotation speed of the fan can be with the temperature conditions linear change.
The technical solution used in the present invention is: 1, use a diverter, regulate this device maximal work voltage according to the different power supply voltage of fan and the limiting temperature condition of expection, making the rear end control unit operating conditions that reaches capacity, promptly is to make fan be issued to maximum (top) speed in the limiting temperature condition.2, use a negative tempperature coefficient thermistor, temperature to controlled environment is carried out temperature detection, and along with the reduction of controlled ambient temperature the linear operating current that reduces the semiconductor control unit of rear end, make it to withdraw from saturation state, enter the linear work district, the operating current of linearity control fan, thus reach the purpose of linearity control rotation speed of the fan.For DC fan, control unit is a transistor, and for ac fan, control unit is the semiconductor controllable silicon.
The invention has the beneficial effects as follows that circuit is simple, with low cost, only need use a thermistor, diverter and transistor or controllable silicon, and have the characteristic of full-automatic linear control.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is an electrical schematic diagram of the present invention.
Among Fig. 1,1 is divider resistance, and 2 is thermistor, and 3 is the semiconductor control unit, can select transistor (DC fan) or semiconductor controllable silicon (ac fan) as required, and 4 is controlled fan.
Embodiment
Among Fig. 1, divider resistance (1) is regulated the maximal work voltage of this device according to the ambient temperature extreme condition of different power supply voltages and expection, makes fan be issued to maximum (top) speed at limiting operationg condition.The temperature variation of the controlled environment of thermistor (2) monitoring, and along with the reduction of controlled ambient temperature the linear operating current that reduces semiconductor control unit (3), make it to withdraw from saturation state, enter the linear work district, thereby under non-extreme environment, can be along with the temperature variation of the controlled environment linear operating current that changes fan (4) realizes the rotating speed of fan (4) is carried out the purpose of linearity control.
Claims (4)
1. the temperature control apparatus of a rotation speed of the fan and method, feature is: use analog electronics to constitute control circuit, have the characteristic of linearity control rotation speed of the fan.
2. control gear according to claim 1 and method, it is characterized in that: to DC fan, use transistor, to ac fan, use the semiconductor bidirectional triode thyristor, as final control unit, and make this final control unit operate mainly in the linear work district, thereby reach the purpose of linearity control rotation speed of the fan.
3. control gear according to claim 1 and method is characterized in that: use a negative temperature coefficient heat-sensitive element, control final control unit and be operated in the linear work district.
4. control gear according to claim 1 and method, it is characterized in that: use an adjustable flow distributing resistance, according to the limiting temperature condition of different power supply voltages and expection, regulate the limiting operationg condition of this device, make rotation speed of the fan be issued to maximum (top) speed in the limiting temperature condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100326355A CN1995758A (en) | 2006-01-04 | 2006-01-04 | Linear temperature speed controller for fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100326355A CN1995758A (en) | 2006-01-04 | 2006-01-04 | Linear temperature speed controller for fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1995758A true CN1995758A (en) | 2007-07-11 |
Family
ID=38250927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100326355A Pending CN1995758A (en) | 2006-01-04 | 2006-01-04 | Linear temperature speed controller for fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1995758A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956724A (en) * | 2009-07-13 | 2011-01-26 | 中国长城计算机深圳股份有限公司 | Fan drive device and fan system |
| CN102235376A (en) * | 2011-07-28 | 2011-11-09 | 林增帅 | Automatic thermoregulation fan |
| CN108930658A (en) * | 2017-05-27 | 2018-12-04 | 佛山市顺德区美的电热电器制造有限公司 | The blower of electromagnetic cooking appliance and electromagnetic cooking appliance with it |
-
2006
- 2006-01-04 CN CNA2006100326355A patent/CN1995758A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956724A (en) * | 2009-07-13 | 2011-01-26 | 中国长城计算机深圳股份有限公司 | Fan drive device and fan system |
| CN101956724B (en) * | 2009-07-13 | 2013-07-03 | 中国长城计算机深圳股份有限公司 | Fan drive device and fan system |
| CN102235376A (en) * | 2011-07-28 | 2011-11-09 | 林增帅 | Automatic thermoregulation fan |
| CN108930658A (en) * | 2017-05-27 | 2018-12-04 | 佛山市顺德区美的电热电器制造有限公司 | The blower of electromagnetic cooking appliance and electromagnetic cooking appliance with it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Yan Shengyong Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |