CN203490620U - Computer cooling fan circuit with automatic regulating function - Google Patents
Computer cooling fan circuit with automatic regulating function Download PDFInfo
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- CN203490620U CN203490620U CN201320585381.5U CN201320585381U CN203490620U CN 203490620 U CN203490620 U CN 203490620U CN 201320585381 U CN201320585381 U CN 201320585381U CN 203490620 U CN203490620 U CN 203490620U
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Abstract
The utility model discloses a computer cooling fan circuit with the automatic regulating function. The computer cooling fan circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a first diode, a second diode, a voltage stabilizing diode, a first capacitor, a second capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor and a tenth resistor, a first fan motor, a second fan motor, a first potentiometer, a second potentiometer, a third potentiometer and a power source. The computer cooling fan circuit is simple in structure and low in cost, the temperature inside a computer mainframe is detected through a thermistor, the cooling intensity of a cooling fan is automatically controlled according to the detection result, elements inside a computer can be effectively protected, noise of the cooling fan is lowered, dust entering the computer mainframe is reduced, the service life of the computer is easily prolonged, and the popularization and promotion value is achieved.
Description
Technical field
The utility model relates to a kind of radiating fan for computer circuit, relates in particular to a kind of radiating fan for computer circuit with automatic regulation function.
Background technology
At present, the practicality of computing machine is extremely extensive, but the performance of computing machine is different, work efficiency because of its heat dissipation equipment in the time of in very large degree is too low, along with improving constantly of the heat flow density of computer CPU heat production, oneself cannot meet the demand of CPU steady operation traditional wind-cooling heat dissipating, although and other several radiating mode radiating effects increase, but all have some drawbacks, as immature in technology, expensive, fan noise is large, have hidden danger etc.
Utility model content
The purpose of this utility model provides a kind of radiating fan for computer circuit with automatic regulation function with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises the first triode, the second triode, the 3rd triode, the 4th triode, the 5th triode, the 6th triode, the first diode, the second diode, voltage stabilizing diode, the first electric capacity, the second electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the first fan electromotor, the second fan electromotor, the first potentiometer, the second potentiometer, the 3rd potentiometer and power supply, the emitter of described the first triode, the first end of described the first resistance, the first end of described the first electric capacity, the first end of described the 3rd potentiometer, the emitter of described the 5th triode, the equal ground connection of first end of the first end of described the 9th resistance and described the second electric capacity, the anodal while of described power supply and the negative pole of described the first diode, the first end of described the first fan electromotor, the first end of described the second resistance, the first end of described the 3rd resistance, the first end of described the 5th resistance, the second end of described the first electric capacity is connected with the first end of described the 6th resistance, the anodal of described the first diode is connected with the collector of described the first triode and the second end of described the first fan electromotor simultaneously, the base stage of described the first triode is connected with the emitter of described the second triode, the collector of described the second triode is connected with the second end of described the second resistance, the base stage of described the second triode is connected with the positive pole of described voltage stabilizing diode, the negative pole of described voltage stabilizing diode is connected with the second end of described the 3rd resistance with the collector of described the 3rd triode simultaneously, the emitter of described the 3rd triode is connected with the emitter of described the 4th triode with the second end of described the first resistance simultaneously, the base stage of described the 3rd triode is connected with the first end of described the 4th resistance, the second end of described the 4th resistance is connected with the second end of described the 5th resistance with the collector of described the 4th triode simultaneously, the base stage of described the 4th triode is connected with the sliding end of described the 3rd potentiometer, the second end while of described the 3rd potentiometer and the collector of described the 6th triode, the first end of described the 7th resistance is connected with the first end of described the 8th resistance, the second end of described the 7th resistance is connected with the base stage of described the 5th triode, the collector of described the 5th triode is connected with the first end of described the second fan electromotor with the positive pole of described the second diode simultaneously, the negative pole while of described the second diode and the second end of described the 6th resistance, the second end of described the second fan electromotor, the second end of described the 8th resistance, the first end of described the first potentiometer, the second end of the sliding end of described the first potentiometer and described the second electric capacity is connected, the emitter of described the 6th triode is connected with the first end of described the second potentiometer, the sliding end of described the second potentiometer is connected with the second end of described the second potentiometer and ground connection, the base stage of described the 6th triode is connected with the first end of described the tenth resistance with the second end of described the 9th resistance simultaneously, and the second end of described the tenth resistance is connected with the second end of described the first potentiometer.
Further, described the 9th resistance is thermistor.
Further, described power supply is 12V direct supply.
The beneficial effects of the utility model are:
The utility model is simple in structure; with low cost; by thermistor, computer mainframe internal temperature is detected; according to testing result, automatically control the specific heat load of radiator fan; effective protection calculation machine inner member, has reduced the noise of radiator fan, has reduced the dust that enters computer mainframe internal; be conducive to extend the serviceable life of computing machine, there is the value of penetration and promotion.
Accompanying drawing explanation
Fig. 1 is the utility model circuit structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model comprises the first triode Q1, the second triode Q2, the 3rd triode Q3, the 4th triode Q4, the 5th triode Q5, the 6th triode Q6, the first diode D1, the second diode D2, voltage stabilizing diode ZD, the first capacitor C 1, the second capacitor C 1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the first fan electromotor M1, the second fan electromotor M2, the first potentiometer RP1, the second potentiometer RP2, the 3rd potentiometer RP3 and power supply, the 9th resistance R 9 is thermistor, power supply is 12V direct supply, the emitter of the first triode Q1, the first end of the first resistance R 1, the first end of the first capacitor C 1, the first end of the 3rd potentiometer RP3, the emitter of the 5th triode Q5, the equal ground connection of first end of the first end of the 9th resistance R 9 and the second capacitor C 2, the anodal while of power supply and the negative pole of the first diode D1, the first end of the first fan electromotor M1, the first end of the second resistance R 2, the first end of the 3rd resistance R 3, the first end of the 5th resistance R 5, the second end of the first capacitor C 1 is connected with the first end of the 6th resistance R 6, the anodal of the first diode D1 is connected with the second end of the first fan electromotor M1 with the collector of the first triode Q1 simultaneously, the base stage of the first triode Q1 is connected with the emitter of the second triode Q2, the collector of the second triode Q2 is connected with the second end of the second resistance R 2, the base stage of the second triode Q2 is connected with the positive pole of voltage stabilizing diode ZD, the negative pole of voltage stabilizing diode ZD is connected with the second end of the 3rd resistance R 3 with the collector of the 3rd triode Q3 simultaneously, the emitter of the 3rd triode Q3 is connected with the emitter of the 4th triode Q4 with the second end of the first resistance R 1 simultaneously, the base stage of the 3rd triode Q3 is connected with the first end of the 4th resistance R 4, the second end of the 4th resistance Q4 is connected with the second end of the 5th resistance R 5 with the collector of the 4th triode Q4 simultaneously, the base stage of the 4th triode Q4 is connected with the sliding end of the 3rd potentiometer RP3, the second end while of the 3rd potentiometer RP3 and the collector of the 6th triode Q6, the first end of the 7th resistance R 7 is connected with the first end of the 8th resistance R 8, the second end of the 7th resistance R 7 is connected with the base stage of the 5th triode Q5, the collector of the 5th triode Q5 is connected with the first end of the second fan electromotor M2 with the positive pole of the second diode D2 simultaneously, the negative pole while of the second diode D2 and the second end of the 6th resistance R 6, the second end of the second fan electromotor M2, the second end of the 8th resistance R 8, the first end of the first potentiometer RP1, the sliding end of the first potentiometer RP1 is connected with the second end of the second capacitor C 2, the emitter of the 6th triode Q6 is connected with the first end of the second potentiometer RP2, the sliding end of the second potentiometer RP2 is connected with the second end of the second potentiometer RP2 and ground connection, the base stage of the 6th triode Q6 is connected with the first end of the tenth resistance R 10 with the second end of the 9th resistance R 9 simultaneously, and the second end of the tenth resistance R 10 is connected with the second end of the first potentiometer RP1.
In the utility model, when temperature is lower, only have the second fan electromotor M2 work, when temperature is higher, the first fan electromotor M2 and the first fan electromotor M1 all work.Under normal temperature, the first triode Q1 cut-off, the first fan electromotor M1 does not work.But when power machine the temperature inside the box reaches 55 ℃ of left and right, the first triode Q1 conducting, the first fan electromotor M1 full speed operation.At the first fan electromotor M1 and the first fan electromotor M2, all full speed operation in the situation that, the temperature in power case can lower.When temperature drops to 40 ℃, the first triode Q1 cut-off, the first fan electromotor M1 stall.If after this temperature in power case rises to 55 ℃ again, the first fan electromotor M1 starts again, when temperature drops to 40 ℃, the first fan electromotor M1 stall again, thereby the temperature in assurance power case can be over 60 ℃, the 3rd triode Q3 and the 4th triode Q4 form " Schmidt " trigger, during normal temperature, the 6th triode Q6 conducting, the 4th triode Q4 cut-off, the 3rd triode Q3 conducting, the voltage of its collector output is compared with low (about 3v is many), can not make the stabilivolt ZD of 6v puncture conducting, the second triode Q2 and the first triode Q1 all end, the first fan electromotor M1 does not work.When temperature reaches 55 ℃, the 6th triode Q6 cut-off, the 4th triode Q4 conducting, the 3rd triode Q3 cut-off, it is many that the voltage of its collector is raised to 11V, makes voltage stabilizing diode ZD puncture conducting, so the second triode Q2 and the first triode Q1 conducting, the first fan electromotor M1 full speed operation.The resistance of the 5th resistance R 5 is greater than the 3rd resistance R 3, the voltage producing in the first resistance R 1 when the voltage of generation is compared with the 3rd triode Q3 conducting in the first resistance R 1 during the 4th triode Q4 conducting is little, therefore maintain the required base current of the 4th triode Q4 conducting less, after the first fan electromotor M1 work, if the temperature in power case declines, the resistance of the 9th resistance R 9 rises, the 6th triode Q6 enters amplification region by cut-off, the electric current of supplying with the 4th triode Q4 base stage has had and has reduced, but the 4th still conducting of triode Q4, the first fan electromotor M1 works on, until temperature is while dropping to 40 ℃, the first fan electromotor M1 just quits work, to avoid the first fan electromotor M1 start continually and stop, in addition, no matter the 4th triode Q4 or the 3rd triode Q3 conducting, in the first resistance R 1, all to produce voltage drop, this negative feedback voltage makes the Comparision of circuit stable, there is certain antijamming capability.
Claims (3)
1. a radiating fan for computer circuit with automatic regulation function, is characterized in that: comprise the first triode, the second triode, the 3rd triode, the 4th triode, the 5th triode, the 6th triode, the first diode, the second diode, voltage stabilizing diode, the first electric capacity, the second electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the first fan electromotor, the second fan electromotor, the first potentiometer, the second potentiometer, the 3rd potentiometer and power supply, the emitter of described the first triode, the first end of described the first resistance, the first end of described the first electric capacity, the first end of described the 3rd potentiometer, the emitter of described the 5th triode, the equal ground connection of first end of the first end of described the 9th resistance and described the second electric capacity, the anodal while of described power supply and the negative pole of described the first diode, the first end of described the first fan electromotor, the first end of described the second resistance, the first end of described the 3rd resistance, the first end of described the 5th resistance, the second end of described the first electric capacity is connected with the first end of described the 6th resistance, the anodal of described the first diode is connected with the collector of described the first triode and the second end of described the first fan electromotor simultaneously, the base stage of described the first triode is connected with the emitter of described the second triode, the collector of described the second triode is connected with the second end of described the second resistance, the base stage of described the second triode is connected with the positive pole of described voltage stabilizing diode, the negative pole of described voltage stabilizing diode is connected with the second end of described the 3rd resistance with the collector of described the 3rd triode simultaneously, the emitter of described the 3rd triode is connected with the emitter of described the 4th triode with the second end of described the first resistance simultaneously, the base stage of described the 3rd triode is connected with the first end of described the 4th resistance, the second end of described the 4th resistance is connected with the second end of described the 5th resistance with the collector of described the 4th triode simultaneously, the base stage of described the 4th triode is connected with the sliding end of described the 3rd potentiometer, the second end while of described the 3rd potentiometer and the collector of described the 6th triode, the first end of described the 7th resistance is connected with the first end of described the 8th resistance, the second end of described the 7th resistance is connected with the base stage of described the 5th triode, the collector of described the 5th triode is connected with the first end of described the second fan electromotor with the positive pole of described the second diode simultaneously, the negative pole while of described the second diode and the second end of described the 6th resistance, the second end of described the second fan electromotor, the second end of described the 8th resistance, the first end of described the first potentiometer, the second end of the sliding end of described the first potentiometer and described the second electric capacity is connected, the emitter of described the 6th triode is connected with the first end of described the second potentiometer, the sliding end of described the second potentiometer is connected with the second end of described the second potentiometer and ground connection, the base stage of described the 6th triode is connected with the first end of described the tenth resistance with the second end of described the 9th resistance simultaneously, and the second end of described the tenth resistance is connected with the second end of described the first potentiometer.
2. the radiating fan for computer circuit with automatic regulation function according to claim 1, is characterized in that: described the 9th resistance is thermistor.
3. the radiating fan for computer circuit with automatic regulation function according to claim 1, is characterized in that: described power supply is 12V direct supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585381.5U CN203490620U (en) | 2013-09-22 | 2013-09-22 | Computer cooling fan circuit with automatic regulating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585381.5U CN203490620U (en) | 2013-09-22 | 2013-09-22 | Computer cooling fan circuit with automatic regulating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490620U true CN203490620U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320585381.5U Expired - Fee Related CN203490620U (en) | 2013-09-22 | 2013-09-22 | Computer cooling fan circuit with automatic regulating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203490620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159576A (en) * | 2018-04-17 | 2019-08-23 | 苏州晨霞美合智能科技有限公司 | A kind of computer multi-fan intelligent temperature control alarm system |
-
2013
- 2013-09-22 CN CN201320585381.5U patent/CN203490620U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159576A (en) * | 2018-04-17 | 2019-08-23 | 苏州晨霞美合智能科技有限公司 | A kind of computer multi-fan intelligent temperature control alarm system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20140922 |
|
| EXPY | Termination of patent right or utility model |