CN102562637B - Fan rotating-speed control method and device of computer power supply - Google Patents
Fan rotating-speed control method and device of computer power supply Download PDFInfo
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- CN102562637B CN102562637B CN201010622621.5A CN201010622621A CN102562637B CN 102562637 B CN102562637 B CN 102562637B CN 201010622621 A CN201010622621 A CN 201010622621A CN 102562637 B CN102562637 B CN 102562637B
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Abstract
The invention relates to a fan rotating-speed control method and device of a computer power supply. The device mainly comprises a temperature control module, a heat source detecting unit and a power supply module, wherein the temperature control module is respectively and electrically connected with the heat source detecting unit and the power supply module and controls the actuation of a fan; the heat source detecting unit is used for detecting the temperature of the working environment and continuously reporting the temperature to the temperature control module; if the temperature of the working environment rises to a first critical temperature T1 instead of a second critical temperature T2, and the fan keeps still continuously; and if the temperature rises to the first critical temperature T1, the fan starts to a starting rotating speed, and the rotating speed keeps linear relation along with the rising or falling of the temperature till the temperature of the working environment falls to the first critical temperature T1, the fan stops rotating, so that the service life of the fan is protected.
Description
Technical field
The relevant one of the present invention is applied to fan control, espespecially a kind of fan rotational frequency control method of computer supply supply and device thereof.
Background technique
Fan assembly is that one common and indispensable in current electronic equipment is equipped with, because electronic equipment is as in computer casing, the more and more miniaturization of its electronic component, but its heating value is increasing because of technology and Effect of Materials, therefore via under the rotation assistance of fan, make the air of internal body produce flowing, when air produces convection current, make internal body be carried out thermolysis.
Therefore, fan be used in integral heat sink countermeasure, become simple practical again selections, also therefore carried out through fan the strategy that thermolysis becomes use at most at present; And constantly increase its heating value in the face of electrical assembly, therefore the rotating speed improving fan is selected to promote the radiating efficiency of overall thermal convection current, accelerate the replacement of hot cool air, this is for being the natural practice, but, under continuing the running up of maintenance fan, what produce is then the consume ahead of time of fan, lasting power consumption and noise problem.
Therefore, how to keep the radiating efficiency of fan on the one hand, can have concurrently again on the other hand and meet energy-conservation and environmental requirement, become a kind of target of fan cooling, for such target, fan turns is controlled and rotating speed size is the practice common at present through temperature detection, as shown in Figure 1, the fan rotation speed control apparatus of known computer supply supply mainly comprises a control module 10, one temperature detecting unit 20 and a supply module 30, wherein this control module 10 is electrically connected with this temperature detecting unit 20 and supply module 30 respectively, this control module 10 another is directly electrically connected with a fan 40, shown in the temperature coordinating Fig. 2 and speed curves figure, when the temperature that temperature detecting unit 20 detects internal body reaches the first critical temperature T1 but when being less than the second critical temperature T2, this fan 40 is still and keeps static state, and this temperature detecting unit 20 continues to detect the temperature of this internal body until the second critical temperature T2, after this control module 10 receives its order, open this supply module 30 and directly start fan 40, and rise according to the temperature of its internal body, make the rotating speed of its fan 40 and the linear running of this temperature, until temperature rises to maximum of T max, its rotation speed of the fan also arrives maximum value Umax, and this temperature is when making the temperature in body start to decline because of the thermolysis of fan 40, before now also not having arrival second critical temperature T2, the rotating speed still linear running with temperature of fan 40, until lower than this second critical temperature T2 time, its rotating speed is dropped to the state at U1rpm and keeps its rotating speed by this fan 40, until when the temperature that this temperature detecting unit 20 detects internal body drops to the first critical temperature T1, then fan 40 directly cuts out by control module 10.
Although aforesaid control method for fan can improve the power consumption that original known techniques fan continues maximum (top) speed, consume and noise problem, but, if the startup of its fan 40 judges according to the second critical temperature T2 in aforementioned techniques, the stopping of fan 40 is then decide according to the first critical temperature T1, if the temperature in body, vacillate in the first critical temperature T1 and the second critical temperature T2, then this fan 40 still can continue to rotate, if fan 40 is under continuous running, the problem that its problem still produces with previous fan control technology, comprise power consumption, consume and noise problem are still and continue to carry out.
Summary of the invention
Object of the present invention is exactly providing a kind of fan rotational frequency control method and device thereof of computer supply supply, via the mode of detected temperatures, and through the pattern of fan control, make rotating speed and the sexual intercourse of operating temperature retention wire of fan, to arrange in pairs or groups at different operating temperature the strategy of different rotation speeds of the fan, normal to guarantee that fan uses.
Another object of the present invention is exactly providing a kind of fan rotational frequency control method and device thereof of computer supply supply, makes rotating speed and the sexual intercourse of operating temperature retention wire of its fan, reaches the environmental requirement of low noise, low power consuming and low-loss.
For reaching above-mentioned object, the invention provides a kind of fan rotational frequency control method and device thereof of computer supply supply, mainly comprise a temperature control module, one thermal source detection unit and a supply module, wherein this temperature control module is electrically connected with this thermal source detection unit and supply module respectively, and control the start of a fan, this thermal source detection unit is in order to testing ambient temperature and continue to be reported to temperature control module, if this operating ambient temperature rises to the first critical temperature T1 and does not reach the second critical temperature T2, fan continues to keep static, if temperature rises to the first critical temperature T1, then starting fan to starts rotating speed, and this rotating speed and with this temperature rise or the sexual intercourse of decline retention wire, until when operating ambient temperature is down to the first critical temperature T1, this fan then stops operating, by this to protect the working life of this fan.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawing, be described in detail below.
Accompanying drawing explanation
Fig. 1 is the fan rotation speed control apparatus Block Diagram of known computer supply supply.
Fig. 2 is known temperature and speed curves figure.
Fig. 3 is schematic block diagram of the present invention.
Fig. 4 is state of operation flow chart of the present invention.
Fig. 5 is temperature of the present invention and speed curves figure.
Fig. 6 is method flow diagram of the present invention (S1) ~ (S5).
Reference character
Control module 10 temperature detecting unit 20
Supply module 30 fan 40
First critical temperature T1 second critical temperature T2
Temperature maximum Tmax rotating speed maximum value Umax
Temperature control module 1 temperature control unit 11
Fan control unit 12 thermal source detection unit 2
Supply module 3 fan 4
First critical temperature T1 second critical temperature T2
Temperature maximum Tmax starts rotating speed U
Maximum (top) speed Umax
Embodiment
Hereby accompanying drawing is coordinated to be illustrated content of the present invention:
Referring to Fig. 3, is schematic block diagram of the present invention.The fan rotation speed control apparatus of computer supply supply of the present invention mainly comprises a temperature control module 1, one thermal source detection unit 2 and a supply module 3, this temperature control module 1 is electrically connected with this thermal source detection unit 2 and supply module 3 respectively, wherein this temperature control module 1 more comprises temperature control unit 11 and a fan control unit 12, this temperature control unit 11 is electrically connected mutually with fan control unit 12, and this temperature control unit 11 is in order to receive the temperature data detected by thermal source detection unit 2, and after analyzing according to temperature data, carry out the control of fan running again, again, this fan control unit 12 is in order to be electrically connected at least one fan 4, accept the instruction of this temperature control unit 11 to carry out the control of fan 4 electric power and rotating speed.
Refer to the state of operation flow chart of Fig. 4 and Fig. 5 and the plotted curve of temperature and rotation speed of the fan.As shown in the figure, this thermal source detection unit 2 is responsible for the temperature detecting its working environment, and continue return temperature control unit 11, when this thermal source detection unit 2 detects that the temperature of working environment arrives the first critical temperature T1, but do not reach the second critical temperature T2, now this second critical temperature T2 is greater than this first critical temperature T1, and this fan 4 still keeps static to state, and the temperature that this thermal source detection unit 2 continues to detect its working environment arrives the second critical temperature T2 and returns temperature control unit 11, this fan control unit 12 of this temperature control unit 11 immediate yield carries out the starting of fan 4, coordinate and consult Fig. 5, through the control of this fan control unit 12, cooperated power supply module 3 output power, the rotating speed of its fan 4 is directly promoted a starting speed U, and this thermal source detection unit 2 continues the temperature of testing environment, if when the constant temperature of its working environment rises, this this fan control unit 12 of temperature control unit 11 immediate yield, the rotating speed of its fan 4 is accelerated, with the temperature line relationship of working environment, until when temperature arrives maximum of T max, the maximum (top) speed Umax of this fan 4, the maximum (top) speed of this fan 4 refers to the motor maximum (top) speed of fan 4.
Continuous Fig. 4 and Fig. 5, if the temperature of thermal source detection unit 2 testing environment starts to start because of the thermolysis of its fan 4 to decline, this fan 4 also controls by its fan control unit 12 and declines with the linear pass of temperature, and be less than the second critical temperature T2 when temperature is down to, but when the temperature of its working environment is still and is greater than the first critical temperature T1, now the rotating speed of fan 4 also starts to be less than starting speed U, but the rotating speed of this fan 4 is still with the temperature of this working environment linear, via by the rotating speed of fan 4 and the sexual intercourse of operating temperature retention wire, make the power consumption of its fan 4, consume and noise decline with temperature and reduce, guarantee the working life of its fan 4, and when the temperature of working environment drops to the first critical temperature T1, coordinate shown in Fig. 5, its fan 4 just directly cuts out and does not rerun, to guarantee the service condition of fan 4 and to extend its life-span.
Refer to Fig. 6, be method flow diagram of the present invention, aforesaid operating method is represented with block flow diagram.First testing ambient temperature (S1) is carried out by this thermal source detection unit 2, this thermal source detection unit 2 testing ambient temperature to the first critical temperature, but be less than the second critical temperature, continue to keep fan in still-mode (S2), this thermal source detection unit 2 testing ambient temperature to the second critical temperature, open the direct setting speed (S3) of fan turns pattern, this thermal source detection unit 2 continues testing ambient temperature afterwards, if operating temperature continues to be greater than the first critical temperature, rotation speed of the fan and temperature line relationship is then kept to operate (S4), finally, if the critical temperature of thermal source detection unit 2 testing ambient temperatures to the first, still-mode (S5) replied by fan.
But above-described mode of execution is preferably embodiment, when not limiting the scope of the present invention with this, if the equivalence change done according to description of the present invention or modify, all should belong within protection domain that the present invention contains.
Claims (4)
1. a fan rotational frequency control method for computer supply supply, is characterized in that, step comprises:
A. testing ambient temperature;
B. testing ambient temperature to the first critical temperature, but be less than the second critical temperature, continue to keep fan in still-mode;
C. testing ambient temperature to the second critical temperature, opens fan turns pattern direct and starts rotating speed;
D. continue testing ambient temperature, if operating temperature continues to be greater than the first critical temperature, then keep rotation speed of the fan and temperature line relationship to operate;
E. testing ambient temperature to the first critical temperature, still-mode replied by fan.
2. the fan rotational frequency control method of computer supply supply as claimed in claim 1, it is characterized in that, in Step d, this fan maximum (top) speed is motor maximum (top) speed.
3. the fan rotational frequency control method of computer supply supply as claimed in claim 1, is characterized in that, in Step d this rotation speed of the fan and temperature line relationship operate until temperature maximum time, this fan is also to maximum value.
4. the fan rotational frequency control method of computer supply supply as claimed in claim 1, it is characterized in that, if when the operating temperature in Step d is less than the second critical temperature but is greater than the first critical temperature, this rotation speed of the fan is less than this startup rotating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010622621.5A CN102562637B (en) | 2010-12-28 | 2010-12-28 | Fan rotating-speed control method and device of computer power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010622621.5A CN102562637B (en) | 2010-12-28 | 2010-12-28 | Fan rotating-speed control method and device of computer power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102562637A CN102562637A (en) | 2012-07-11 |
| CN102562637B true CN102562637B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010622621.5A Expired - Fee Related CN102562637B (en) | 2010-12-28 | 2010-12-28 | Fan rotating-speed control method and device of computer power supply |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802850B (en) * | 2015-11-26 | 2019-11-12 | 瑞昱半导体股份有限公司 | Temprature control method and the input/output unit for using it |
| CN107045379B (en) * | 2016-02-05 | 2021-01-29 | 华为技术有限公司 | Cabinet server temperature control method and device |
| CN109429469B (en) * | 2017-08-28 | 2020-10-09 | 振华电脑有限公司 | Fan rotating speed control device and control method of power supply |
| CN107559788A (en) * | 2017-11-01 | 2018-01-09 | 佛山市高明区云大机械科技有限公司 | A kind of control method of inclined type heat-dissipation lamp bulb |
| CN107654979A (en) * | 2017-11-01 | 2018-02-02 | 佛山市高明区云大机械科技有限公司 | A kind of inclined type heat-dissipation lamp bulb |
| CN111315164A (en) * | 2019-11-29 | 2020-06-19 | 速捷电梯有限公司 | Integrated elevator control cabinet |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2419401Y (en) * | 2000-05-12 | 2001-02-14 | 台湾达隆工业股份有限公司 | Controller for controlling rotation speed of electric fan by temperature |
| US6757592B1 (en) * | 2002-09-30 | 2004-06-29 | National Semiconductor Corporation | Nonlinear fan control |
| CN100517172C (en) * | 2003-03-27 | 2009-07-22 | 联想(北京)有限公司 | Computer system noise reducing method based on intelligent chip |
| CN2725990Y (en) * | 2004-09-06 | 2005-09-14 | 叶清辉 | Improved structure for power supply device |
| CN2862170Y (en) * | 2005-11-04 | 2007-01-24 | 保锐科技股份有限公司 | Fan rotary speed control device |
| US20070297893A1 (en) * | 2006-06-27 | 2007-12-27 | Winbond Electronics Corporation | Fan speed change control |
| CN101498944B (en) * | 2009-03-06 | 2011-07-13 | 海韵电子工业股份有限公司 | Motor rotation speed control method |
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| CN102562637A (en) | 2012-07-11 |
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