CN2674165Y - Device for controlling rotating speed and sensing temp. of computer's fan - Google Patents
Device for controlling rotating speed and sensing temp. of computer's fan Download PDFInfo
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- CN2674165Y CN2674165Y CN 03273584 CN03273584U CN2674165Y CN 2674165 Y CN2674165 Y CN 2674165Y CN 03273584 CN03273584 CN 03273584 CN 03273584 U CN03273584 U CN 03273584U CN 2674165 Y CN2674165 Y CN 2674165Y
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Abstract
The utility model discloses a device for controlling the rotating speed and sensing temperature of computer's fan, comprising an externally connected temperature sense circuit, a fan speed sense input circuit, a fan rotating speed regulating circuit, a temperature setting and selecting circuit, a wind speed setting and selecting circuit, a display and a crystal oscillator. The temperature sense circuit, the fan speed sense input circuit, the fan rotating speed regulating circuit, the temperature setting and selecting circuit, the wind speed setting and selecting circuit, the display and the crystal oscillator are respectively connected with a central processing unit. The utility model can respectively sense and control the temperature and the fan rotating speed, and can regulate the environment temperature to cause the computer to work in the normal temperature range all the time, improving the performance of the computer and extending the service life of the computer.
Description
Technical field
The utility model relates to a kind of computer heat radiating device, relates in particular to a kind of rotation speed of computer fan induction controller.
Background technique
Central processing unit (CPU) is the core of computer, and the runnability of central processing unit (CPU) has directly determined the performance of a computer.The multifactorial influence of the runnability audient of central processing unit (CPU), wherein temperature is an extremely important factor, temperature is crossed the low or too high normal operation that all can influence central processing unit (CPU).Along with the continuous development of science and technology, the dominant frequency of central processing unit (CPU) is also increasing, and the heat that central processing unit (CPU) itself sends is also increasing.How the heat on the central processing unit (CPU) being distributed once is the problem that numerous technical experts research and solve, and people are provided with radiator on central processing unit (CPU) at first, and fan is set on radiator, has improved the hot device effect of central processing unit (CPU) greatly.But because rotation speed of the fan uncontrollable is also uncontrollable to radiating effect, central processor temperature can occurs and cross low or too high situation, influence the proper functioning of central processing unit (CPU) greatly.Certainly, computer motherboard, hard disk, display card etc. are subjected to Temperature Influence also very big, and how the control computer temperature inside also is the problem that people are concerned about.
The model utility content
The purpose of this utility model is for overcoming the deficiencies in the prior art, a kind of temperature that can sense central processing unit (CPU), mainboard, hard disk and display card is provided, and control the rotating speed of fan according to the actuator temperature of sensing, guarantee the rotation speed of computer fan control and the temperature sensing device of computer proper functioning.
In order to achieve the above object, the utility model adopts following technical characteristics:
A kind of rotation speed of computer fan control and temperature sensing device is characterized in that: this device comprises that external temperature sensor circuit, fan speed induction input circlult, rotation speed of the fan regulating circuit, temperature are set the selection circuit, wind speed is set and selected circuit, display device and crystal oscillator; Temperature sense circuit, fan speed induction input circlult, rotation speed of the fan regulating circuit, temperature are set and are selected circuit, wind speed setting to select circuit, display device to be connected with central processing unit (CPU) respectively with crystal oscillator.
Described rotation speed of the fan control induction installation also comprises buzzer and buzzer drive circuit, and buzzer is connected the back and is connected with central processing unit (CPU) with buzzer drive circuit.
Described central processing unit (CPU) comprises that at least arithmetic processor, A/D change-over circuit, comparison circuit, temperature detection amplification circuit, rotation speed of the fan detect amplification circuit, rotation speed of the fan detects regulating circuit and circuit of display driving;
External temperature sensor circuit, temperature detection amplification circuit, comparison circuit, A/D change-over circuit connect and compose Treatment Analysis branch road to ambient temperature with arithmetic processor successively;
Fan power supply, fan speed induction input circlult, fan speed detect amplification circuit and connect and compose Treatment Analysis branch road to rotation speed of the fan with arithmetic processor successively;
Arithmetic processor and circuit of display driving, display device connect and compose temperature successively and rotating speed shows the output branch road;
Arithmetic processor and buzzer drive circuit, buzzer connect and compose buzzing alarming output branch road successively;
Temperature is set and is selected circuit to be connected with arithmetic processing circuit;
Rotation speed of the fan is set and is selected circuit, arithmetic processor, rotation speed of the fan detection adjusting control circuit, rotation speed of the fan regulating circuit to be connected successively with fan power supply;
Comparison circuit is connected with arithmetic processor.
Described rotation speed of the fan regulating circuit and temperature are set and are selected the equal selection matrix button of circuit and set matrix button composition.
Set the matrix button for three of described rotation speed of the fan regulating circuit and be set to high, medium and low speed respectively, temperature is set three setting matrix buttons selecting circuit and is set to 45 ℃, 55 ℃ and 65 ℃ respectively.
Described display device is a LCD display, and the temperature that the plate face is provided with 00.0 form shows and form is 0000 rotation speed of the fan demonstration.
Owing to adopted said structure, rotation speed of computer fan control of the present utility model is responded to the temperature of central processing unit (CPU), mainboard, display card or hard disk and the rotating speed that institute is connected fan with temperature sensing device by the temperature sense circuit, and respective value shown, give the alarm when surpassing setting value.People set the alarm temperature as the case may be, and to the height of rotation speed of the fan and adjust accordingly, and make to calculate function and move under more suitable temperature, improve the performance of computer, and prolong the life-span of computer.
Description of drawings
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the utility model rotation speed of the fan control principle block diagram;
Fig. 3 is the utility model temperature sense control principle block diagram;
Fig. 4 is the utility model display mode of display device schematic representation;
Fig. 5 is the circuit diagram of a kind of mode of execution of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figures 1 to 4, a kind of rotation speed of computer fan control and temperature sensing device is characterized in that: this device comprises that external temperature sensor circuit, fan speed induction input circlult, rotation speed of the fan regulating circuit, temperature are set the selection circuit, wind speed is set and selected circuit, display device and crystal oscillator; Temperature sense circuit, fan speed induction input circlult, rotation speed of the fan regulating circuit, temperature are set and are selected circuit, wind speed setting to select circuit, display device to be connected with central processing unit (CPU) respectively with crystal oscillator.
Described rotation speed of the fan control induction installation also comprises buzzer and buzzer drive circuit, and buzzer is connected the back and is connected with central processing unit (CPU) with buzzer drive circuit.
Described central processing unit (CPU) comprises that at least arithmetic processor, A/D change-over circuit, comparison circuit, temperature detection amplification circuit, rotation speed of the fan detect amplification circuit, rotation speed of the fan detects regulating circuit and circuit of display driving;
External temperature sensor circuit, temperature detection amplification circuit, comparison circuit, A/D change-over circuit connect and compose Treatment Analysis branch road to ambient temperature with arithmetic processor successively;
Fan power supply, fan speed induction input circlult, fan speed detect amplification circuit and connect and compose Treatment Analysis branch road to rotation speed of the fan with arithmetic processor successively;
Arithmetic processor and circuit of display driving, display device connect and compose temperature successively and rotating speed shows the output branch road;
Arithmetic processor and buzzer drive circuit, buzzer connect and compose buzzing alarming output branch road successively;
Temperature is set and is selected circuit to be connected with arithmetic processing circuit;
Rotation speed of the fan is set and is selected circuit, arithmetic processor, rotation speed of the fan detection adjusting control circuit, rotation speed of the fan regulating circuit to be connected successively with fan power supply;
Comparison circuit is connected with arithmetic processor.
Described rotation speed of the fan regulating circuit and temperature are set and are selected the equal selection matrix button of circuit and set matrix button composition.
Set the matrix button for three of described rotation speed of the fan regulating circuit and be set to high, medium and low speed respectively, temperature is set three setting matrix buttons selecting circuit and is set to 45 ℃, 55 ℃ and 65 ℃ respectively.
Described display device is a LCD display, and the temperature that the plate face is provided with 00.0 form shows and form is 0000 rotation speed of the fan demonstration.
When the signal of external temperature sensor circuit amplifies through the temperature detection amplification circuit, and with the setting value comparison, after the A/D conversion, deliver to arithmetic processor, after arithmetic processor is handled by analysis Temperature numerical is presented on the display device through circuit of display driving; When temperature surpassed setting value, buzzer gave the alarm, about 15 seconds of endurance.Equally, fan speed sensation circuit amplifies signal behind the fan power supply by analysis through the fan speed amplification circuit, and passes to arithmetic processor, and arithmetic processor is presented at respective value on the display device after by analysis.When fan connected improper or do not connect, buzzer gave the alarm.People can set the alarm temperature as the case may be, regulate rotation speed of the fan then and make ambient temperature be in normal state, improve the performance of computer, prolong the computer life-span.
Induction and control temperature flow process are as follows:
As shown in Figure 5, circuit power is powered to entire circuit after connecting external power supply by power socket 1, the external temperature inductor is set by temperature sense and is selected circuit 6 that signal is selected input by the pin 39,40,41 of central processing unit (CPU) 4 (model is STP8008E), after central processing unit (CPU) 4 inner related circuit analysing and processing, to show that numerical value outputs to display device 5 by pin 10 to pin 31, and judging whether to surpass setting temperature through logic, the buzzer drive circuit 2 instruction back that gives the alarm of giving that judged result surpasses setting temperature is given the alarm by buzzer 3.Alarm continues 15 seconds, if after temperature was recovered, alarm stopped automatically or makes it to stop by the selection matrix button midway.Can set the selection matrix button K1 that selects circuit 7 by temperature and select to show different group temperature, the utility model can show three groups, and display area is 0 ℃ to 100 ℃.It is 45 ℃, 55 ℃ and 65 ℃ that ALM45, ALM55, ALM65 can set the alarm temperature respectively.
Induction and control temperature flow process are as follows:
As shown in Figure 5, fan speed sensation circuit 8 is by analysis behind the fan power supply 11, with pin 37,38 inputs of signal by central processing unit (CPU) (model is STP8008E), after the inner related circuit analysing and processing of central processing unit (CPU) (model is STP8008E), rotation speed of the fan numerical value is demonstrated by display device.Detect fan mutually and connect improper or when not connecting, central processing unit (CPU) 4 can be sounded the alarm by buzzer 3 to buzzer drive circuit 2 instruction that gives the alarm.Warning time continues 13 seconds, and recovery alarm just often midway stops automatically or makes it to stop by K2.K2 is mainly used in the rotating speed of selecting to show different fans, and the utility model can select to show two groups.Three rotating speeds of setting matrix button controlling fan of FANL, FANM and FANH are respectively basic, normal, high speed.When needs change the rotating speed of fan, by selecting to send instruction to central processing unit (CPU) pin 47 by FANL, FANM and FANH, central processing unit (CPU) passes through pin 46 output instruction signals after giving analysing and processing, voltage by 9 pairs of fan power supplies of rotation speed of the fan regulating circuit is adjusted, thereby reaches the purpose that changes rotation speed of the fan.
Temperature sense control of the present utility model and rotation speed of the fan control is cooperative work simultaneously, after setting the alarm temperature, when ambient temperature surpasses setting temperature, promptly after buzzer gives the alarm, can strengthen radiating effect and reach by regulating rotation speed of the fan to recover the purpose of normal temperature.
Claims (6)
1, a kind of rotation speed of computer fan control and temperature sensing device is characterized in that: this device comprises that external temperature sensor circuit, fan speed induction input circlult, rotation speed of the fan regulating circuit, temperature are set the selection circuit, wind speed is set and selected circuit, display device and crystal oscillator; Temperature sense circuit, fan speed induction input circlult, rotation speed of the fan regulating circuit, temperature are set and are selected circuit, wind speed setting to select circuit, display device to be connected with central processing unit (CPU) respectively with crystal oscillator.
2, rotation speed of computer fan control according to claim 1 and temperature sensing device, it is characterized in that described rotation speed of the fan control induction installation also comprises buzzer and buzzer drive circuit, buzzer is connected the back and is connected with central processing unit (CPU) with buzzer drive circuit.
3, rotation speed of computer fan control according to claim 1 and 2 and temperature sensing device is characterized in that described central processing unit (CPU) comprises that at least arithmetic processor, A/D change-over circuit, comparison circuit, temperature detection amplification circuit, rotation speed of the fan detect amplification circuit, rotation speed of the fan detects regulating circuit and circuit of display driving;
External temperature sensor circuit, temperature detection amplification circuit, comparison circuit, A/D change-over circuit connect and compose Treatment Analysis branch road to ambient temperature with arithmetic processor successively;
Fan power supply, fan speed induction input circlult, fan speed detect amplification circuit and connect and compose Treatment Analysis branch road to rotation speed of the fan with arithmetic processor successively;
Arithmetic processor and circuit of display driving, display device connect and compose temperature successively and rotating speed shows the output branch road;
Arithmetic processor and buzzer drive circuit, buzzer connect and compose buzzing alarming output branch road successively;
Temperature is set and is selected circuit to be connected with arithmetic processing circuit;
Rotation speed of the fan is set and is selected circuit, arithmetic processor, rotation speed of the fan detection adjusting control circuit, rotation speed of the fan regulating circuit to be connected successively with fan power supply;
Comparison circuit is connected with arithmetic processor.
4, rotation speed of computer fan control according to claim 1 and temperature sensing device is characterized in that described rotation speed of the fan regulating circuit and temperature are set the equal selection matrix button of selection circuit and setting matrix button is formed.
5, rotation speed of computer fan control according to claim 3 and temperature sensing device, three setting matrix buttons that it is characterized in that described rotation speed of the fan regulating circuit are set to high, medium and low speed respectively, and temperature is set three setting matrix buttons selecting circuit and is set to 45 ℃, 55 ℃ and 65 ℃ respectively.
6, rotation speed of computer fan according to claim 1 control and temperature sensing device is characterized in that described display device is a LCD display, and the temperature that the plate face is provided with 00.0 form shows and form is 0000 rotation speed of the fan demonstration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03273584 CN2674165Y (en) | 2003-08-12 | 2003-08-12 | Device for controlling rotating speed and sensing temp. of computer's fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03273584 CN2674165Y (en) | 2003-08-12 | 2003-08-12 | Device for controlling rotating speed and sensing temp. of computer's fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2674165Y true CN2674165Y (en) | 2005-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03273584 Expired - Fee Related CN2674165Y (en) | 2003-08-12 | 2003-08-12 | Device for controlling rotating speed and sensing temp. of computer's fan |
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| Country | Link |
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| CN (1) | CN2674165Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416457C (en) * | 2005-07-05 | 2008-09-03 | 威盛电子股份有限公司 | Apparatus and method for dynamic configuration of temperature profile in an integrated circuit |
| CN101290524B (en) * | 2007-04-20 | 2011-07-27 | 富准精密工业(深圳)有限公司 | Fan circuit |
| CN103883546A (en) * | 2012-12-21 | 2014-06-25 | 鸿富锦精密工业(武汉)有限公司 | Fan speed indicating circuit |
| CN104033411A (en) * | 2014-06-11 | 2014-09-10 | 广州三晶电气有限公司 | Fan operation control device and method and photovoltaic inverter with control device |
| CN105676967A (en) * | 2015-12-31 | 2016-06-15 | 天津信诺金智科技有限公司 | Computer case |
| CN107704038A (en) * | 2017-09-30 | 2018-02-16 | 东华理工大学 | Novel server |
| CN110069118A (en) * | 2019-05-28 | 2019-07-30 | 丙申南京网络技术有限公司 | A kind of computer fan starting heat dissipation and temperature control equipment |
-
2003
- 2003-08-12 CN CN 03273584 patent/CN2674165Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416457C (en) * | 2005-07-05 | 2008-09-03 | 威盛电子股份有限公司 | Apparatus and method for dynamic configuration of temperature profile in an integrated circuit |
| CN101290524B (en) * | 2007-04-20 | 2011-07-27 | 富准精密工业(深圳)有限公司 | Fan circuit |
| CN103883546A (en) * | 2012-12-21 | 2014-06-25 | 鸿富锦精密工业(武汉)有限公司 | Fan speed indicating circuit |
| CN104033411A (en) * | 2014-06-11 | 2014-09-10 | 广州三晶电气有限公司 | Fan operation control device and method and photovoltaic inverter with control device |
| CN104033411B (en) * | 2014-06-11 | 2016-01-13 | 广州三晶电气有限公司 | A kind of fan work control gear, method and there is the photovoltaic DC-to-AC converter of this control gear |
| CN105676967A (en) * | 2015-12-31 | 2016-06-15 | 天津信诺金智科技有限公司 | Computer case |
| CN107704038A (en) * | 2017-09-30 | 2018-02-16 | 东华理工大学 | Novel server |
| CN110069118A (en) * | 2019-05-28 | 2019-07-30 | 丙申南京网络技术有限公司 | A kind of computer fan starting heat dissipation and temperature control equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |