CN110056525A - A kind of protection cpu fan control system by temperature control revolving speed - Google Patents
A kind of protection cpu fan control system by temperature control revolving speed Download PDFInfo
- Publication number
- CN110056525A CN110056525A CN201810047128.1A CN201810047128A CN110056525A CN 110056525 A CN110056525 A CN 110056525A CN 201810047128 A CN201810047128 A CN 201810047128A CN 110056525 A CN110056525 A CN 110056525A
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- CN
- China
- Prior art keywords
- cpu
- temperature
- transforming circuit
- revolving speed
- cpu fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The present invention relates to a kind of protection cpu fan control systems by temperature control revolving speed, applied on computer CPU fan, including rotational speed governor, cpu fan, hall sensor, thermistor, temperature inductor, first transforming circuit, second transforming circuit and loudspeaker, the present invention detects the temperature of CPU main part by thermistor, and change the resistance of itself to control output electric current, rotational speed governor controls output voltage according to input current, to control the revolving speed of cpu fan, entire cpu fan is set to control revolving speed according to the temperature of CPU, it is more energy saving reasonable, and the interior temperature sensor being equipped with for measuring the hall sensor of cpu fan revolving speed and for measuring CPU body temperature, according to the output voltage and difference of hall sensor and the temperature sensor of CPU main body It is realized and is pressurized by transforming circuit, when the temperature and rotation speed of the fan of CPU main body make in larger difference, formed voltage difference between two transforming circuits, and loudspeaker is made to sound, to protect CPU main body, avoid being damaged.
Description
Technical field
The present invention relates to a kind of control system more particularly to a kind of protection cpu fan controls by temperature control revolving speed
System.
Background technique
Cpu fan heat dissipation, the heat of CPU is exactly quickly transferred out come and blown to using them in neighbouring air,
The quality of cooling effect is directly related with the quality of CPU radiator fan, cooling fin.
Current cpu fan revolving speed is usually fixation, and high-end cpu fan is able to carry out rotational speed regulation, but designs
Complexity, development cost is high, causes price expensive, and simple currently without design, can be carried out according to computer operating condition
The cpu fan of rotational speed regulation.
Summary of the invention
The present invention is to solve well-known technique and provide a kind of protection CPU by temperature control revolving speed
Fan control system.
The present invention is adopted the technical scheme that a kind of controlled by temperature turns to solve well-known technique
The protection cpu fan control system of speed is applied on computer CPU fan, including rotational speed governor, cpu fan, Hall sense
Answer device, thermistor, temperature inductor, the first transforming circuit, the second transforming circuit and loudspeaker, the CPU main body of computer
On closely be equipped with thermistor, and CPU main body by thermally conductive spring part be close to be equipped with temperature sensor, the thermistor it is defeated
Enter end to connect with power input, the thermistor output end is electrically connected with rotational speed governor, and passes through the defeated of thermistor
The output voltage of size of current control rotational speed governor out, the output end of the rotational speed governor is electrically connected with cpu fan, described
Revolving speed motor in cpu fan is correspondingly provided with a hall sensor, the output end of the hall sensor and the first transforming circuit
Electrical connection, and the output end of the temperature inductor is electrically connected with the second transforming circuit, first transforming circuit and second becomes
Be equipped with a loudspeaker in parallel between volt circuit, at the same the output end of the first transforming circuit and the second transforming circuit respectively with calculating
Signal acquisition terminal connection in machine.
Further, first transforming circuit and the second transforming circuit are boost pressure circuit, and interior be equipped with is pressurized transformation
Device, according to the revolving speed proportional of the temperature of CPU and cpu fan, then the output voltage and temperature sense of hall sensor
The output voltage direct proportionality of device, and by the processing of the transformation of the first transforming circuit and the second transforming circuit, make loudspeaker
The voltage at both ends is consistent.
Further, the thermally conductive spring part is made of metallic copper, and the upper and lower ends of thermally conductive spring part are radiated by CPU
Silica gel is fixedly connected with temperature inductor and CPU main body respectively.
Further, the hall sensor is Hall velocity sensor.
The present invention has the advantage that as follows with good effect:
1. designing a kind of control system in the present invention, the temperature of CPU main part is detected by thermistor, and changes the resistance of itself
To control output electric current, rotational speed governor controls output voltage according to input current to be made to control the revolving speed of cpu fan
Entire cpu fan can control revolving speed according to the temperature of CPU, more energy saving more reasonable in this way, reduce noise, and effectively increase
Add the service life of cpu fan.
2. being equipped in of the invention for measuring the hall sensor of cpu fan revolving speed and for measuring CPU body temperature
It is real to pass through transforming circuit according to the output voltage of hall sensor and the temperature sensor of CPU main body and respectively for temperature sensor
It is now pressurized, when the temperature and rotation speed of the fan of CPU main body make in larger difference, forms voltage difference between two transforming circuits, and make to raise
Sound device sounds, to protect CPU main body, avoids being damaged.
Detailed description of the invention
Fig. 1 is the system block diagram that the embodiment of the present invention 1 provides.
Specific embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following embodiment, and cooperate attached drawing
Detailed description are as follows.
Below with reference to Fig. 1 to a kind of protection cpu fan control system by temperature control revolving speed of the invention, it is applied to
On computer CPU fan, including rotational speed governor, cpu fan, hall sensor, thermistor, temperature inductor, the first change
Volt circuit, the second transforming circuit and loudspeaker are closely equipped with thermistor in the CPU main body of computer, and CPU main body passes through
Thermally conductive spring part is close to be equipped with temperature sensor, and the input terminal of the thermistor is connect with power input, the temperature-sensitive electricity
Resistance output end is electrically connected with rotational speed governor, and the output electricity of rotational speed governor is controlled by the output size of current of thermistor
Pressure, the output end of the rotational speed governor are electrically connected with cpu fan, and the revolving speed motor in the cpu fan is correspondingly provided with one suddenly
That inductor, the output end of the hall sensor is electrically connected with the first transforming circuit, and the output end of the temperature inductor
It is electrically connected with the second transforming circuit, a loudspeaker in parallel is equipped between first transforming circuit and the second transforming circuit, together
When the first transforming circuit and the output end of the second transforming circuit connect respectively with the signal acquisition terminal in computer.Described first becomes
Volt circuit and the second transforming circuit are boost pressure circuit, and it is interior be equipped with booster transformer, according to the temperature of CPU and cpu fan
Revolving speed proportional, then the output voltage direct proportionality of the output voltage of hall sensor and temperature inductor, and
It is handled by the transformation of the first transforming circuit and the second transforming circuit, keeps the voltage at loudspeaker both ends consistent.The thermally conductive spring
Part is made of metallic copper, the upper and lower ends of thermally conductive spring part by CPU thermal grease respectively with temperature inductor and CPU main body
It is fixedly connected.
A kind of control system is designed in the present invention, the temperature of CPU main part is detected by thermistor, and changes the electricity of itself
To control output electric current, rotational speed governor controls output voltage according to input current for resistance, so that the revolving speed of cpu fan is controlled,
Entire cpu fan is set to control revolving speed according to the temperature of CPU, it is more energy saving more reasonable in this way, noise is reduced, and effective
Increase the service life of cpu fan, while interior equipped with for measuring the hall sensor of cpu fan revolving speed and for measuring CPU
The temperature sensor of body temperature passes through according to the output voltage of hall sensor and the temperature sensor of CPU main body and respectively
Transforming circuit realizes pressurization, when the temperature and rotation speed of the fan of CPU main body make in larger difference, forms voltage between two transforming circuits
Difference, and loudspeaker is made to sound, to protect CPU main body, avoid being damaged.
The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form,
Any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong to
In the range of technical solution of the present invention.
Claims (4)
1. a kind of protection cpu fan control system by temperature control revolving speed, is applied on computer CPU fan, feature
It is: including rotational speed governor, cpu fan, hall sensor, thermistor, temperature inductor, the first transforming circuit, second
Transforming circuit and loudspeaker are closely equipped with thermistor in the CPU main body of computer, and CPU main body passes through thermally conductive spring part
Be close to be equipped with temperature sensor, the input terminal of the thermistor connect with power input, the thermistor output end and
Rotational speed governor electrical connection, and pass through the output voltage of the output size of current control rotational speed governor of thermistor, described turn
The output end of fast controller is electrically connected with cpu fan, and the revolving speed motor in the cpu fan is correspondingly provided with a hall sensor,
The output end of the hall sensor is electrically connected with the first transforming circuit, and the output end of the temperature inductor and the second transformation
Circuit electrical connection is equipped with a loudspeaker in parallel, while the first transformation between first transforming circuit and the second transforming circuit
The output end of circuit and the second transforming circuit is connect with the signal acquisition terminal in computer respectively.
2. a kind of protection cpu fan control system by temperature control revolving speed according to claim 1, feature exist
In first transforming circuit and the second transforming circuit are boost pressure circuit, and interior equipped with booster transformer, according to the temperature of CPU
Degree and the revolving speed proportional of cpu fan, then the output voltage of the output voltage of hall sensor and temperature inductor at
Proportional relationship, and by the processing of the transformation of the first transforming circuit and the second transforming circuit, keep the voltage at loudspeaker both ends consistent.
3. a kind of protection cpu fan control system by temperature control revolving speed according to claim 1, feature exist
In, the thermally conductive spring part is made of metallic copper, the upper and lower ends of thermally conductive spring part by CPU thermal grease respectively with temperature
Inductor is fixedly connected with CPU main body.
4. a kind of protection cpu fan control system by temperature control revolving speed according to claim 1, feature exist
In the hall sensor is Hall velocity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047128.1A CN110056525A (en) | 2018-01-18 | 2018-01-18 | A kind of protection cpu fan control system by temperature control revolving speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047128.1A CN110056525A (en) | 2018-01-18 | 2018-01-18 | A kind of protection cpu fan control system by temperature control revolving speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110056525A true CN110056525A (en) | 2019-07-26 |
Family
ID=67314969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810047128.1A Pending CN110056525A (en) | 2018-01-18 | 2018-01-18 | A kind of protection cpu fan control system by temperature control revolving speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056525A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090567A (en) * | 2021-03-04 | 2021-07-09 | 山东英信计算机技术有限公司 | Fan rotating speed adjusting device and method |
| CN115575283A (en) * | 2022-09-30 | 2023-01-06 | 南京凤嘉科技有限公司 | Control circuit of SF6 gas density meter |
-
2018
- 2018-01-18 CN CN201810047128.1A patent/CN110056525A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090567A (en) * | 2021-03-04 | 2021-07-09 | 山东英信计算机技术有限公司 | Fan rotating speed adjusting device and method |
| CN115575283A (en) * | 2022-09-30 | 2023-01-06 | 南京凤嘉科技有限公司 | Control circuit of SF6 gas density meter |
| CN115575283B (en) * | 2022-09-30 | 2024-03-26 | 南京凤嘉科技有限公司 | Control circuit of SF6 gas density meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190726 |
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| WD01 | Invention patent application deemed withdrawn after publication |