CN105682433A - Heat radiation method of power supply - Google Patents
Heat radiation method of power supply Download PDFInfo
- Publication number
- CN105682433A CN105682433A CN201610220495.8A CN201610220495A CN105682433A CN 105682433 A CN105682433 A CN 105682433A CN 201610220495 A CN201610220495 A CN 201610220495A CN 105682433 A CN105682433 A CN 105682433A
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- CN
- China
- Prior art keywords
- power supply
- temperature
- controller
- rotating speed
- heat sinking
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- General Physics & Mathematics (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a heat radiation method of a power supply. The method comprises a heat radiation device, including a temperature sensor, a controller, a cooling fan and a rotating speed sensor, of the power supply is provided; the temperature sensor is used to measure the room temperature and the temperature of the power supply, and measured temperature information is sent to the controller; and the rotating speed sensor measures the rotating speed of the cooling fan, measured rotating speed information is sent to the controller, the controller adjusts the rotating speed of the cooling fan according to the temperature information and the rotating speed information, and thus, the temperature of the power supply is effectively controlled. The method of the invention can be used to control the temperature of the power supply more effectively, and ensure stable work of the power supply.
Description
Technical field
The present invention relates to a kind of power supply heat sinking method.
Background technology
Computer power supply, while being operated, can produce, substantial amounts of heat, if the temperature of power supply is too high, can cause the offer electric energy that power supply cannot be stable. Meanwhile, power work amount is ever-increasing while, the heat energy that power supply produces also can further increase, and iff the cooling device arranged by power source internal, power supply is lowered the temperature, it will increasingly cannot meet the demand of cooling.
Dispel the heat the most common several: air-cooled, water-cooled, passively dispel the heat. Wherein water-cooling product price is higher, installs loaded down with trivial details; The performance of passive heat radiation is on the low side, and the restriction in processing technology more makes its price not have advantage; In the method for existing wind-cooling heat dissipating, it is frequently necessary to the rotating speed of manual adjustment fan when device temperature is too high, therefore make labor intensive cost in this way, it is impossible to the rotating speed according to the temperature automatic adjustment fan of equipment accurately and in time. Therefore, how designing a kind of power supply heat sinking method that power supply carries out cooling process that can be more efficient, energy-conservation is the problem first having to solve.
Summary of the invention
For solving problems of the prior art, the invention provides a kind of power supply heat sinking method, including:
S000, it is provided that a kind of power supply heat sinking device, including: temperature sensor, controller, cool down fan, speed probe;
S100, utilizes the temperature of temperature sensor measurement room temperature and power supply, and sends measuring the temperature information arrived to controller;
S200, utilizes speed probe to measure the rotating speed of cooling fan, and sends measuring the rotary speed information arrived to controller;
S300, the rotary speed information of the described controller temperature information according to step S100 and step S200, adjust the rotating speed of cooling fan.
When controller receives temperature information, the temperature current according to power supply and the trend of intensification calculate the working speed of corresponding required cooling fan. The method can adjust the rotating speed of cooling fan timely, thus effectively controlling power source temperature, saves unnecessary power consumption simultaneously.
According to certain embodiments of the present invention, described in step S100, temperature information includes room temperature T0, at time t1The power source temperature T recorded1, time t in a time interval at thereafter2The power source temperature T recorded2;
In step S200, utilizing speed probe to measure the rotating speed of cooling fan, and send measuring the rotary speed information arrived to controller, described rotary speed information includes at time t1The rotating speed R recorded1;
In step S300, the rotary speed information of the described controller temperature information according to step S100 and step S200, according to below equation with time t1It is separated by the t of Δ t time2Time point, controls the rotating speed of cooling fan as R2:
Δ t=t2–t1
Δ T=T2–T1
R2=α R1[1+ΔT/(T1-T0)]
Wherein Δ t is the 1-10 second, and the value of factor alpha is 0.8-1.2.
This kind calculates the method for rotating speed and enables the controller to more accurately the rotating speed of cooling fan is adjusted, thus effectively reducing power source temperature
According to certain embodiments of the present invention, this controller can be programmable logic device (CPLD) or FPGA;
According to certain embodiments of the present invention, described temperature sensor measurement temperature adopts method or the infrared induction temp measuring method of direct contact type measurement. Direct contact type measurement is to use temperature sensor directly and power supply carries out bump contact, is directly measured power source temperature value by conduction of heat, and sends temperature to controller. Infrared induction temp measuring method is the radiation temperature determining object by measuring the heat radiation of all-wave length of radiating object. The two method can both the real-time temperature of more accurate measurement power supply.
According to certain embodiments of the present invention, also including converter in this power supply heat sinking device, this converter can adopt pulse width modulation. In step S300, the adjustment of the rotating speed of cooling fan is realized by the frequency conversion function of converter by controller. The energy-conservation effective rotating speed controlling cooling fan can be realized by connecting converter, reduce unnecessary consumption.
According to certain embodiments of the present invention, power supply is carried out the interval time between adjacent twice detection of temperature detection by Δ t, and Δ t is set to the 1-10 second, and along with the rising of power source temperature, the Δ t time is gradually shortened.
According to certain embodiments of the present invention, also include step S400, controller is connected with siren, when controller finds cooling fan operation irregularity, control siren and carry out alert action. Use the method, in time finding that temperature exceedes power safety temperature value or finds that intensification trend is too fast through calculating, such as, when the temperature of rising per minute is more than 3 degrees Celsius (during especially more than 5 degrees Celsius), it is possible to trigger siren and report to the police, thus reminding user.
According to certain embodiments of the present invention, described cooling fan is multiple, and controller controls the rotating speed of each fan.
The present invention is by the outside cooling fan increasing scalable rotating speed at power supply, and the actual work temperature according to power supply carries out the effective rotating speed regulating cooling fan, and the cooling of power supply is processed by significantly more efficient realization, it is ensured that the steady operation of power supply.
Power supply effectively can be carried out cooling process by the present invention, it is possible at power supply while producing overheated trend, strengthens cooling dynamics, it is ensured that the stable operation of power supply.
Accompanying drawing explanation
Fig. 1 is the structure chart of the power supply heat sinking device using the inventive method.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment, the invention will be further described.
In an embodiment of the invention, as shown in Figure 1, it is provided that power supply heat sinking device include: temperature sensor, controller, cool down fan, speed probe;
Power supply heat sinking device utilizes the temperature of temperature sensor measurement room temperature and power supply, and sends measuring the temperature information arrived to controller;Utilize speed probe to measure the rotating speed of cooling fan simultaneously, and send measuring the rotary speed information arrived to controller; And described controller is according to said temperature information and rotary speed information, it is possible to judge and adjust the rotating speed of cooling fan in time.
Wherein temperature sensor is used for measuring the actual work temperature of power supply, this temperature sensor measurement temperature can adopt direct contact type measurement or infrared induction temp measuring method, direct contact type measurement is to use temperature sensor directly and power supply carries out bump contact, directly measured power source temperature value by conduction of heat, and send the temperature value recorded to controller. Infrared induction temp measuring method is the radiation temperature determining object by measuring the heat radiation of all-wave length of radiating object. The temperature information measured is sent to controller by temperature sensor, controller carry out the adjustment to cooling fan rotation speed according to temperature information and control.
This controller may be selected to be programmable logic device (CPLD) or FPGA.
Controller receives temperature information, the temperature current according to power supply and the trend of intensification calculate the working speed of corresponding required cooling fan, corresponding obtains control information, and this control information is sent to converter accordingly, the motor speed of fan is cooled down, thus realizing the control to cooling fan rotation speed by Frequency Converter Control. This converter is pulse width modulation.
The method of described calculating rotating speed is:
Recording room temperature is T0, at time t1The power source temperature T recorded1, time t in a time interval at thereafter2The power source temperature T recorded2
At time t1The rotating speed R recorded1;
t1With t2Interval time Δ t
Δ t=t2–t1
Δ T=T2–T1
With t1The t of interval Δ t2Time point, the rotating speed of cooling fan controls should be:
R2=α R1[1+ΔT/(T1-T0)]
Wherein controller power source is carried out the interval time between adjacent twice detection of temperature detection by Δ t, can be set to the 1-10 second;
The value of factor alpha is 0.8-1.2, and this coefficient is the parameter that cooling fan rotation speed adjusts with power source temperature change;
Along with the rising of power source temperature, the interval Δ t that power supply is detected is gradually shortened, and the value of factor alpha increases therewith;
Shown in table 1 specific as follows:
Table 1: the adjustment mode that interval Δ t and factor alpha change with power source temperature
| Power source temperature (DEG C) | 20～50 | 50～80 | 80～110 | 110～130 |
| Factor alpha | 0.8 | 1.0 | 1.1 | 1.2 |
| Δt(s) | 5 | 4 | 3 | 2 |
Adopt the adjustment of factor alpha in this form, allow controller when power source temperature changes, in time rotation speed of the fan can be modified, the change of the interval Δ t of detection, controller can be allowed when power source temperature is too high to improve the number of times of detection, in order to cool down adjustment more accurately.
Converter controls cooling fan accordingly and is operated according to the control information received so that cooling fan can adjust rotating speed with the requirement of controller.
Meanwhile, by the process of cooling fan work, power supply is carried out cooling process so that power supply ensure that have normal operating temperature. Owing to cooling fan can be operated by different rotating speeds, hence in so that power supply can be cooled down by cooling fan with different working strengths.
This method uses controller that the temperature of power supply carries out cooling control in time, and the different temperature situations of power supply regulate the rotating speed of fan, when show during power supply is overheated or heats up continue overheated trend time, it is possible to reduce power source temperature timely and effectively.
It is separately preferred embodiment, described power supply heat sinking method also includes arranging controller and is also connected with siren, controller receives the temperature information that temperature sensor is transmitted and the rotary speed information transmitted with speed probe at set intervals, in time finding that temperature exceedes power safety temperature value or finds that intensification trend is too fast through calculating, such as, when the temperature of rising per minute is more than 3 degrees Celsius (during especially more than 5 degrees Celsius), reported to the police by siren, remind user likely to occur in that cooling failure.
The present invention cools down fan and can have multiple, and is attached respectively at power supply, it is possible to realization cooling to power supply more efficient, quick.
The present embodiment is by using the power supply heat sinking method of the present invention, more efficiently power supply can be cooled, ensure its operation that works normally, simultaneously because control according to the operating temperature of power supply during the rotating speed of cooling fan, therefore will carry out concrete control according to actual situation.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the technology of the present invention principle; can also making and be suitably modified and deform, these improve and deformation also should be regarded as protection scope of the present invention.
Claims (9)
1. a power supply heat sinking method, including:
S000, it is provided that a kind of power supply heat sinking device, including: temperature sensor, controller, cool down fan, speed probe;
S100, utilizes the temperature of temperature sensor measurement room temperature and power supply, and sends measuring the temperature information arrived to controller;
S200, utilizes speed probe to measure the rotating speed of cooling fan, and sends measuring the rotary speed information arrived to controller;
S300, the rotary speed information of the described controller temperature information according to step S100 and step S200, adjust the rotating speed of cooling fan.
2. described power supply heat sinking method according to claim 1, it is characterised in that described in step S100, temperature information includes room temperature T0, at time t1The power source temperature T recorded1, time t in a time interval at thereafter2The power source temperature T recorded2;
In step S200, utilizing speed probe to measure the rotating speed of cooling fan, and send measuring the rotary speed information arrived to controller, described rotary speed information includes at time t1The rotating speed R recorded1;
In step S300, the rotary speed information of the described controller temperature information according to step S100 and step S200, according to below equation with time t1It is separated by the t of Δ t time2Time point, controls the rotating speed of cooling fan as R2:
Δ t=t2–t1
Δ T=T2–T1
R2=α R1[1+ΔT/(T1-T0)]
Wherein Δ t is the 1-10 second, and the value of factor alpha is 0.8-1.2.
3. described power supply heat sinking method according to claim 1, it is characterised in that described temperature sensor measurement temperature adopts method or the infrared induction temp measuring method of direct contact type measurement.
4. described power supply heat sinking method according to claim 1, it is characterised in that also include converter in this power supply heat sinking device, in step S300, the adjustment of the rotating speed of cooling fan is realized by the frequency conversion function of converter by controller.
5. described power supply heat sinking method according to claim 4, it is characterised in that this converter adopts pulse width modulation.
6. described power supply heat sinking method according to claim 2, it is characterised in that power supply is carried out the interval time between adjacent twice detection of temperature detection by Δ t, and Δ t is set to the 1-10 second, and along with the rising of power source temperature, the Δ t time is gradually shortened.
7. described power supply heat sinking method according to claim 1, it is characterised in that this controller is programmable logic device (CPLD) or FPGA.
8. described power supply heat sinking method according to claim 1, it is characterised in that also include step S400, be connected with siren by controller, when controller finds cooling fan operation irregularity, controls siren and carries out alert action.
9. described power supply heat sinking method according to claim 1, it is characterised in that described cooling fan is multiple, and controller controls the rotating speed of each fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610220495.8A CN105682433B (en) | 2016-04-11 | 2016-04-11 | A kind of power supply heat sinking method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610220495.8A CN105682433B (en) | 2016-04-11 | 2016-04-11 | A kind of power supply heat sinking method |
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| Publication Number | Publication Date |
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| CN105682433A true CN105682433A (en) | 2016-06-15 |
| CN105682433B CN105682433B (en) | 2018-01-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107953785A (en) * | 2016-10-18 | 2018-04-24 | 南京金邦动力科技有限公司 | A kind of radiator and its heat dissipating method of Rechargeable vehicle battery |
| WO2020097906A1 (en) * | 2018-11-16 | 2020-05-22 | 北京比特大陆科技有限公司 | Fan speed control apparatus and computing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1566712A (en) * | 2003-06-27 | 2005-01-19 | 精拓科技股份有限公司 | Apparatus and method for controlling rotation speed of multistage speed and intelligent fan |
| US20140054024A1 (en) * | 2012-08-24 | 2014-02-27 | Msi Electronic (Kun Shan) Co., Ltd. | Computer and control method for smart fan thereof |
| CN105388981A (en) * | 2015-11-27 | 2016-03-09 | 浪潮电子信息产业股份有限公司 | Server power supply fan control method and fan controller |
-
2016
- 2016-04-11 CN CN201610220495.8A patent/CN105682433B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1566712A (en) * | 2003-06-27 | 2005-01-19 | 精拓科技股份有限公司 | Apparatus and method for controlling rotation speed of multistage speed and intelligent fan |
| US20140054024A1 (en) * | 2012-08-24 | 2014-02-27 | Msi Electronic (Kun Shan) Co., Ltd. | Computer and control method for smart fan thereof |
| CN105388981A (en) * | 2015-11-27 | 2016-03-09 | 浪潮电子信息产业股份有限公司 | Server power supply fan control method and fan controller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107953785A (en) * | 2016-10-18 | 2018-04-24 | 南京金邦动力科技有限公司 | A kind of radiator and its heat dissipating method of Rechargeable vehicle battery |
| WO2020097906A1 (en) * | 2018-11-16 | 2020-05-22 | 北京比特大陆科技有限公司 | Fan speed control apparatus and computing device |
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| Publication number | Publication date |
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| CN105682433B (en) | 2018-01-26 |
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Granted publication date: 20180126 Termination date: 20190411 |