CN100413391C - Control system and method for fan of electronic device and radiating system thereof - Google Patents
Control system and method for fan of electronic device and radiating system thereof Download PDFInfo
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- CN100413391C CN100413391C CNB2005100056506A CN200510005650A CN100413391C CN 100413391 C CN100413391 C CN 100413391C CN B2005100056506 A CNB2005100056506 A CN B2005100056506A CN 200510005650 A CN200510005650 A CN 200510005650A CN 100413391 C CN100413391 C CN 100413391C
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Abstract
The present invention relates to a fan control system of an electronic device which can operate according to more complicated operation environment, a fan control method and a heat radiation system thereof. The present invention aims to solve the problems of heat radiation and fan running noise which are brought by that the complicated degree of an electronic system is increased. The fan control system of the electronic device comprises a temperature sensor, a temperature control module, first logic, second logic and a fan control circuit, wherein temperature sensor is used for sensing the temperature of a corresponding integrated circuit when operates; the temperature control module receives sensed temperature and outputs corresponding first logic signals according to the temperature; the first logic is used for outputting corresponding second logic signals according to the first logic signals and first control signals; the second logic is provided with one or more operation relationships between the rotary speed of fan-temperature so as to output second control signals according to the rotary speed-temperature curve corresponding to the second logic signals. The control circuit drives the fan to rotate according to voltage corresponding to the second control signals.
Description
Technical field
The present invention relates to a kind of fan control system, the fan control system that particularly a kind ofly is applied in electronic installation or the information processor, can dispels the heat according to the different temperatures curve.
Background technology
Along with making rapid progress of computer science and technology, the energy that is consumed is also more and more huger.Common radiating mode has the large-scale fin of installation at present, utilize the free convection of air or use large-scale fan to help cross-ventilation to reach the effect of heat radiation, or small-sized or medium-sized fin is installed, cooperate small-sized fans to utilize the convection current of air in the casing to dispel the heat.In addition, the cooling system that also has water-cooled cooling system or employing heat pipe.In general personal computer, electronic installation or information processor, generally all adopt fin and cooperate the auxiliary of fan to dispel the heat, therefore, the kind of the air output of fan, blast, bearing all is the principal element of influence heat radiation.
In present cooling system, be mostly with control fan rotating speed to reach the purpose of suitable heat radiation.And the rotating speed of fan adopts temperature controlled mode mostly.In general system, only adopt one group of fan to dispel the heat, adopt the temperature speed curves that pre-defines, and by the transducer sensing temperature, make that fan can be according to the running of present temperature, increasing or to reduce air output, reach the effect of heat radiation so as to the temperature that changes system.The opereating specification that these temperature curves are general approximately is between the highest by 12, the 13DCV between minimum 4.5 direct current volts (DCV), 5DCV.
Along with the function that computer system can provide is more and more diversified, its design also becomes increasingly complex, and when electronic installations such as computer system became home entertainment center, it just must be considered in detail because fan rotates the noise problem of being brought.
For instance, when the user desired to view and admire the multimedia film, operating system can be in the state of standby usually, and at this moment, because the thermal source in the system reduces, according to present fan control mode, fan will rotate with lowest speed.But rotation will be followed the generation of noise.That is to say that fan is after system boot, i.e. continuous running is to dispel the heat.
Most fan all can be with the speed entry into service of minimum, or according to single temperature curve operation, and the increase along with the complexity or the operator scheme of system only has single temperature curve to control the demand that fan may not meet consumer electronic device.The fan running of single temperature curve can't solve noise problem effectively.
Therefore,, develop a kind of cooling system or fan operation system that can operate according to complicated operations environment more, become the technical problem that needs to be resolved hurrily in the electronic installation heat dissipation technology along with the complexity of system increases.
Summary of the invention
In view of above problem, main purpose of the present invention is to provide a kind of electronic installation fan control system, to solve existing problem of known technology and shortcoming.
Therefore, for reaching above-mentioned purpose, the fan control system of disclosed electronic installation, be applied in the electronic installation, its electronic installation has a motherboard, at least and operates a power supply unit of required power supply and one or more are arranged on the motherboard for the required integrated circuit of electronic installation running in order to the supplies electrons device; Cooling system includes: one or more temperature sensors, corresponding to some or all configuration of integrated circuit, the temperature when operating in order to the corresponding integrated circuit of sensing; One temperature control modules joins with the equitemperature transducer, exports corresponding first logical signal to receive equitemperature transducer institute's sensed temperature, and exports one first control signal corresponding to the electronic installation operating state; One first logic is joined with temperature control modules, in order to according to first logical signal and first control signal to export corresponding one second logical signal; One second logic is joined with first logic, wherein is set with one or more rotation speeds of the fan-temperature operation relation, and the pairing rotation speed of the fan-temperature curve of second logical foundation, second logical signal is exported one second control signal; One or more control circuits join with second logic, in order to export the voltage corresponding to second control signal; And more than one fan, each fan is connected with corresponding control circuit, with the rotational speed corresponding to voltage.
According to the fan control system of above-mentioned electronic installation, wherein this temperature control modules and this first logic are arranged on the motherboard, and this second logic and described control circuit are arranged in the power supply unit.
According to the fan control system of above-mentioned electronic installation, wherein said fan is arranged in the power supply unit, and the power supply of described fan is by this power supply unit supply.
According to the fan control system of above-mentioned electronic installation, optionally to some or all configuration that should integrated circuit, the power supply of described fan is by the motherboard supply for wherein said fan.
According to the fan control system of above-mentioned electronic installation, wherein this temperature control modules is an output input chip.
According to the fan control system of above-mentioned electronic installation, wherein this temperature control modules includes an output input chip and the more than one thermal control integrated circuit that receives described temperature sensor institute sensed temperature.
According to the fan control system of above-mentioned electronic installation, wherein the figure place of this first logical signal of exporting of this temperature control modules corresponds to the number of described temperature sensor.
According to the fan control system of above-mentioned electronic installation, wherein this second logic of this first logical AND is separate electronic circuit or integrated circuit.
According to the fan control system of above-mentioned electronic installation, wherein this second logic integration of this first logical AND is single circuit or integrated circuit.
According to the fan control system of above-mentioned electronic installation, wherein this this control circuit of second logical AND is separate electronic circuit or integrated circuit.
According to the fan control system of above-mentioned electronic installation, wherein this this control circuit of second logical AND is integrated into single circuit or integrated circuit.
According to principle of the present invention, the present invention also provides a kind of control method for fan of electronic installation, be applied in the electronic installation, electronic installation has a motherboard at least, at least have one on the motherboard and operate power supply unit of required power supply and the required integrated circuit of one or more runnings in order to the supplies electrons device, this control method for fan includes the following step: the temperature during at least more than one integrated circuit running of sensing; Receive sensed temperature, and export corresponding one first logical signal according to this; Export corresponding one second logical signal according to first logical signal and one first control signal; Export one second control signal according to pairing one rotation speed of the fan of second logical signal-temperature curve; And output is rotated with drive fan corresponding to a voltage of second control signal.
According to principle of the present invention, by the diverse location in system a plurality of temperature inductors are set, can the sensing diverse location and the temperature of different operation modes, can under different operator schemes, sense different temperature, and by fan with different rotating speed rotations.This temperature can include the operating temperature of system temperature or electronic building brick or integrated circuit.
Below in conjunction with drawings and Examples, further illustrate detailed features of the present invention and advantage.
Description of drawings
Fig. 1 is the system block diagrams of electronic installation fan control system of the present invention;
Fig. 2 A is the applied voltage of electronic installation fan control system of the present invention-temperature curve schematic diagram;
Fig. 2 B is applied another voltage of electronic installation fan control system of the present invention-temperature curve schematic diagram;
Fig. 2 C is the applied another voltage of electronic installation fan control system of the present invention-temperature curve schematic diagram;
Fig. 2 D is applied one voltage again of electronic installation fan control system of the present invention-temperature curve schematic diagram; And
Fig. 3 is the embodiment that the operation signal of electronic installation fan control system of the present invention is set.
Wherein, description of reference numerals is as follows:
100 motherboards, 200 power supply units, 10 temperature control modules
20 first logics, 30 second logics, 40 control circuits
The S1 first control signal S2 second control signal
The TEMP1 first logical signal TEMP2 first logical signal
The TEMP3 first logical signal L1 second logical signal
Embodiment
Please refer to Fig. 1, system architecture diagram for the fan control system of disclosed electronic installation comprises one or more temperature sensor (not shown), temperature control modules 10, first logic 20, second logic 30 and one or more control circuits 40 etc.The quantity of control circuit is not in order to limit the quantity of control circuit used in the present invention as illustrative purposes only.Discuss for convenient, to call these temperature inductors in the following text is first temperature inductor, second temperature inductor, the 3rd temperature inductor ... the rest may be inferred, and export the temperature signal of being responded to respectively, be first temperature sensing signal, second temperature sensing signal in regular turn ... the rest may be inferred.
Embodiment as shown in the figure, temperature control modules 10, first logic 20 are arranged on the motherboard 100 of an electronic installation, and second logic 30 and control circuit 40 etc. are arranged in the power supply unit 200 in the system.
Generally speaking; the applied electronic installation of the present invention can be provided with a motherboard 100 usually; motherboard 100 can be provided with a central processing unit as the System Operation core, the internal memory of auxiliary system running, display card, sound card, network interface card or the like integrated circuit (IC) chip or have the more than one chip of identical function.In addition, TV card, video signal card or have more than one chip of identical function or the like also optionally are installed.In another embodiment, motherboard 100 is provided with the integrated circuit of System Operation core, can be one or more.For instance, motherboard 100 can be installed in the casing, also is equipped with power supply unit 200 in the casing, with the power supply of supply System Operation.In addition, electronic installation also is provided with many group radiator fans, and heat radiation is used during for System Operation.In one embodiment, fan is arranged in the power supply unit, and the power supply of fan is by the power supply unit supply.In another embodiment, except being arranged in the power supply unit, fan also is arranged at the integrated circuit place that is easy to generate thermal source, central processing unit for example, and the power supply of fan is by the power supply module supply on power supply unit or the motherboard.This radiator fan is the temperature curve running of responding to according to temperature sensor.
Electronic installation described in the embodiment can be personal computer, server, game machine, multimedia computer, multi-media player, personal audio recording system (PVR) or the like.
According to principle of the present invention, in system, be provided with one or more temperature inductor (not shown), for instance, can be arranged in display card, TV card, central processing unit, the power supply unit.
As shown in Figure 1, one or more temperature sensors are corresponding to some or all configuration of integrated circuit, for instance, as central processing unit, TV card etc., the temperature during in order to the corresponding integrated circuit running of sensing.
The below function and the operation of each module of explanation.
Temperature control modules 10 joins with described temperature sensor, receives described temperature sensor institute's sensed temperature and exports corresponding first logical signal TEMP1～3 according to this, and wherein the number of this first logical signal corresponds to the number of this temperature sensor.Temperature control modules 10 includes an output input chip (super I/O) and the more than one thermal control integrated circuit (Thermal Control IC) that receives described temperature sensor institute sensed temperature, also can comprise output input chip (super I/O) or thermal control integrated circuit separately.When temperature control modules 10 includes output input chip and thermal control integrated circuit simultaneously, output input chip will be exported an induction source circuit signal and give first logic 20, is from output input chip or thermal control integrated circuit to assist first logic 20 to differentiate the temperature that is received.
In addition, temperature control modules 10 also can be exported the first control signal S1 and give first logic 20, to notify the operating mode of first logic, 20 present systems.The figure place decision systems of the first control signal S1 can be operated at several modes.When the first control signal S1 was a position, system had two kinds of operator schemes; When the first control signal S1 was two positions, system had four kinds of operator schemes.Therefore, the figure place of the first control signal S1 can be set according to the complexity or the actual needs of system.
In one embodiment, the first control signal S1 that exported of temperature control modules 10 can be controlled by the basic input output system (BIOS) of system.Those skilled in the art as can be known, temperature control modules 10 can be connected with basic input output system (BIOS) by System Management Bus (SM BUS), this is the category of known technology, the present invention repeats no more.
First logic 20 is joined with temperature control modules 10, exports corresponding one second logical signal L1 in order to first logical signal TEMP1～3 that correspond to sensing temperature and the first control signal S1 that is exported according to temperature control modules 10.
Second logic 30 and first logic 20 are joined, and are set with one or more rotation speeds of the fan-temperature operation relation in second logic 30, and second logic 30 is exported one second control signal S2 according to pairing this rotation speed of the fan-temperature curve of the second logical signal L1.
The control circuit 40 and second logic 30 are joined, in order to according to the corresponding second control signal S2 and drive fan is rotated.Each control circuit is all corresponding one voltage-temperature curve.Wherein voltage is the voltage of drive fan rotating speed.About the composition of first logic 20, second logic 30 and control circuit 40, those skilled in the art can be formed by the collocation of electronic building bricks such as transistor and gate arbitrarily, and this is the category of known technology, and the present invention repeats no more.
In one embodiment, first logic 20 and second logic 30 are separate electronic circuit or integrated circuit.In another embodiment, first logic 20 and second logic 30 are integrated into single circuit or integrated circuit.
In the embodiment in figure 1, second logic 30 is separate circuit or integrated circuit with control circuit 40.In another embodiment, second logic 30 is integrated into single circuit or integrated circuit with control circuit 40.
Pairing voltage-temperature curve please refer to Fig. 2 A～Fig. 2 D.For instance, voltage-temperature curve of control circuit 40 corresponding diagram 2A is a sloping step formula curve; Voltage-temperature curve of control circuit 40 corresponding diagram 2B is a tilting curve; Voltage-temperature curve of control circuit 40 corresponding diagram 2C is a staged curve; Voltage-temperature curve of control circuit 40 corresponding diagram 2D is a multiple staged curve.Circuit shown in the figure is only explained as an illustration, is not in order to limit voltage-temperature curve used in the present invention.Those skilled in the art can select to be fit to the voltage-temperature curve of electronic installation operation arbitrarily.
The running of the fan control system of disclosed electronic installation below is described.The corresponding relation of temperature sensor and control signal, for instance, can be as the setting of Fig. 3.
As previously mentioned, in electronic installation, be provided with one or more temperature sensors, for instance, can be arranged at central processing unit, TV card etc.If system operates with normal operator scheme at present, the first control signal S1 of temperature control modules 10 meeting outputs this moment one normal manipulation mode gives first logic 20, logic zero signal as shown in Figure 3.And first temperature sensor that is arranged at central processing unit will sense different temperature with second temperature sensor that is arranged at TV card, receive by temperature control modules 10, and institute's sensed temperature exported in first logic 20, first logic 20 can become the corresponding sensing logical signal with temperature transition according to the temperature that is sensed.For instance, in the embodiment shown in fig. 3, four temperature sensors are set, temperature control modules 10 then receives four temperature signals, and converts the corresponding sensing logical signal to by first logic 20.
For instance, when signal that temperature sensor sensed be respectively＜X ℃,＜Y1 ℃,＜Y2 ℃,＜during Z ℃, corresponding first logical signal is " 0 ", first logic 20 will be exported corresponding second logical signal for " 00 " according to first control signal of " 0 " and first logical signal of " 0 " this moment, make second logic 30 export the corresponding second control signal S2 according to this.
For instance, when the signal that temperature sensor sensed be respectively＞X ℃,＜Y1 ℃,＜Y2 ℃,＜during Z ℃, corresponding first logical signal is " 1 ", and first control signal of this moment is " 1 ", the expression system is in another operator scheme.First logic 20 will be exported corresponding second logical signal according to first logical signal of first control signal of " 1 " and " 1 " and be " 11 ", make second logic 30 export the corresponding second control signal S2 according to this.
Can store different temperature-voltage-operated curve in second logic 30, and this temperature-voltage-operated curve is corresponding with second logical signal, for instance, when if second logical signal is " 00 ", second logic 30 will be exported second control signal corresponding to " 00 " this moment, and export the voltage of a correspondence so that the rotation of control circuit 40 drive fan.
According to principle of the present invention, the fan control system of disclosed electronic installation has multiple operating condition, by a plurality of temperature sensors, temperature during with sensing system running correctly, and control the running of fan according to different temperature-voltage curves, with noise and the heat radiation more efficiently that reduces fan running, thus the temperature of reduction system.
Though the present invention discloses as above with aforesaid preferred embodiment, yet it is not in order to limit the present invention.Change of being done and retouching without departing from the spirit and scope of the present invention all belongs in the scope of patent protection of the present invention.Please refer to appending claims about protection scope of the present invention is as the criterion.
Claims (12)
1. the cooling system of an electronic installation is applied in the electronic installation, and this electronic installation has one or more integrated circuit, and wherein this cooling system comprises:
One or more temperature sensors, corresponding to some or all configuration of this integrated circuit, the temperature when operating in order to corresponding this integrated circuit of sensing;
One temperature control modules joins with described temperature sensor, receives described temperature sensor institute's sensed temperature and exports corresponding first logical signal, and export one first control signal corresponding to this electronic installation operating state;
One first logic is joined with this temperature control modules, in order to according to this first logical signal and this first control signal to export corresponding one second logical signal;
One second logic is joined with this first logic, wherein is set with one or more rotation speeds of the fan-temperature operation relation, and the pairing rotation speed of the fan-temperature curve of this second logical signal of this second logical foundation is exported one second control signal;
One or more control circuits receive this second control signal, in order to the voltage of output corresponding to this second control signal; And
More than one fan, each fan is connected with this control circuit, with the rotational speed corresponding to this voltage.
2. the cooling system of electronic installation as claimed in claim 1, wherein this temperature control modules and this first logic are arranged on the motherboard, and this second logic and described control circuit are arranged in the power supply unit.
3. the cooling system of electronic installation as claimed in claim 1, wherein said fan is arranged in the power supply unit, and the power supply of described fan is by this power supply unit supply.
4. optionally to some or all configuration that should integrated circuit, the power supply of described fan is by the motherboard supply for the cooling system of electronic installation as claimed in claim 1, wherein said fan.
5. the cooling system of electronic installation as claimed in claim 1, wherein this temperature control modules is an output input chip.
6. the cooling system of electronic installation as claimed in claim 1, wherein this temperature control modules includes an output input chip and the more than one thermal control integrated circuit that receives described temperature sensor institute sensed temperature.
7. the cooling system of electronic installation as claimed in claim 1, wherein the figure place of this first logical signal of exporting of this temperature control modules corresponds to the number of described temperature sensor.
8. the cooling system of electronic installation as claimed in claim 1, wherein this second logic of this first logical AND is separate electronic circuit or integrated circuit.
9. the cooling system of electronic installation as claimed in claim 1, wherein this second logic integration of this first logical AND is single circuit or integrated circuit.
10. the cooling system of electronic installation as claimed in claim 1, wherein this this control circuit of second logical AND is separate electronic circuit or integrated circuit.
11. the cooling system of electronic installation as claimed in claim 1, wherein this this control circuit of second logical AND is integrated into single circuit or integrated circuit.
12. the control method for fan of an electronic installation is applied in the electronic installation, this electronic installation has one or more integrated circuit, and wherein this control method for fan comprises the following steps:
Temperature during at least more than one this integrated circuit running of sensing;
Receive this sensed temperature, and export corresponding one first logical signal according to this;
According to this first logical signal and first control signal corresponding to the operating state of this electronic installation, export corresponding one second logical signal;
Export one second control signal according to pairing one rotation speed of the fan of this second logical signal-temperature curve; And
Output is rotated with drive fan corresponding to a voltage of this second control signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100056506A CN100413391C (en) | 2005-01-24 | 2005-01-24 | Control system and method for fan of electronic device and radiating system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100056506A CN100413391C (en) | 2005-01-24 | 2005-01-24 | Control system and method for fan of electronic device and radiating system thereof |
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| CN1812705A CN1812705A (en) | 2006-08-02 |
| CN100413391C true CN100413391C (en) | 2008-08-20 |
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| CNB2005100056506A Expired - Fee Related CN100413391C (en) | 2005-01-24 | 2005-01-24 | Control system and method for fan of electronic device and radiating system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423188A (en) * | 2012-05-21 | 2013-12-04 | 纬创资通股份有限公司 | Fan control system and fan control method thereof |
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| CN102080664A (en) * | 2009-12-01 | 2011-06-01 | 技嘉科技股份有限公司 | Radiating system and control method thereof |
| CN102469750A (en) * | 2010-11-17 | 2012-05-23 | 鸿富锦精密工业（深圳）有限公司 | Container data center, noise-reducing device and noise-reducing method therefor |
| CN102032207A (en) * | 2010-12-10 | 2011-04-27 | 曙光信息产业(北京)有限公司 | Method and system for monitoring cabinet fan |
| CN102828980B (en) * | 2012-09-11 | 2015-04-29 | 中兴通讯股份有限公司 | Heat radiation fan control device and electronic device |
| CN103807200B (en) * | 2012-11-15 | 2016-01-20 | 英业达科技有限公司 | Fan rotational frequency control method and electronic equipment |
| TWI534595B (en) | 2014-03-28 | 2016-05-21 | 智邦科技股份有限公司 | Control device and control method |
| CN104154023A (en) * | 2014-08-18 | 2014-11-19 | 深圳市杰和科技发展有限公司 | Intelligent control system and method for multiple fans of display card |
| CN106762771B (en) * | 2017-02-09 | 2019-01-15 | 联想(北京)有限公司 | Fan control system, cooling system and control method for fan |
| JP2019009913A (en) * | 2017-06-26 | 2019-01-17 | オムロン株式会社 | Power supply device |
| CN111984565B (en) * | 2019-05-24 | 2022-03-01 | 技嘉科技股份有限公司 | Multiple signal synchronous transmission system and multiple signal synchronous transmission method |
| CN112649109B (en) * | 2020-12-22 | 2023-03-17 | 日立电梯（中国）有限公司 | Device and method for judging running state of radiating fan of frequency converter |
| CN113503269B (en) * | 2021-05-27 | 2024-04-12 | 闻泰通讯股份有限公司 | Fan speed regulating method, device, computer equipment and computer readable storage medium |
| CN114153294B (en) * | 2021-11-30 | 2023-11-21 | 联想(北京)有限公司 | Control method and device and electronic equipment |
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| CN1258818A (en) * | 1998-12-31 | 2000-07-05 | 神基科技股份有限公司 | Stepless fan speed temperature controller and control method |
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| CN1812705A (en) | 2006-08-02 |
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