CN100478837C - Method for dedusting by radiator fan and dust cleaning apparatus for computer device - Google Patents
Method for dedusting by radiator fan and dust cleaning apparatus for computer device Download PDFInfo
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- CN100478837C CN100478837C CNB2005101204933A CN200510120493A CN100478837C CN 100478837 C CN100478837 C CN 100478837C CN B2005101204933 A CNB2005101204933 A CN B2005101204933A CN 200510120493 A CN200510120493 A CN 200510120493A CN 100478837 C CN100478837 C CN 100478837C
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Abstract
The invention provides a dedusting method using thermal fan and a dedusting device for computer apparatuses. The said computer apparatuses include notebook computers, desktop computers, and servers. The method in the invention includes following: to diagnosis if the temperature of electronic parts is higher than the specified temperature, or if the revolution rate of heat-radiating fans is lower than the specified revolution rate; if the result is ''YES'', the heat-radiating fans is counter-rotated till the interval timer reaching the specified time.
Description
Technical field
The present invention relates to a kind of application of radiator fan, the dust arrester that particularly relates to the method for utilizing the radiator fan dedusting and can use for computer equipment.
Background technology
Present computer equipment is compact mostly, and what stress is that speed is fast, usefulness is good.In order to make computer speed faster, whether the usefulness that often depends on computer equipment internal electron part can fully be brought into play.When computer equipment internal electron part is brought into play its usefulness, the frequency of operation of electronic component promptly increases, damage because of the high temperature that too high frequency of operation causes for fear of electronic component, the computer equipment dealer can be provided with the temperature that a radiator fan reduces electronic component usually.
This radiator fan is that the cold air of computer equipment outside is sucked within the computer equipment, utilizes flowing to reduce the temperature of electronic component of cold air.; radiator fan not only can suck cold air; it also can suck dust; and because computer equipment internal electron arrangement of parts comparatively intensive; therefore regular meeting makes the air flow of computer equipment inside comparatively have obstacles (flow resistance is bigger), will make easily that thus radiator fan and/or electronic component are stained with dust.And these dusts are more comparatively had obstacles because of the air flow of computer equipment inside, and are difficult for being brought to along with hot blast the outside of computer equipment.
After a large amount of dust of radiator fan and/or electronic component accumulation, the usefulness of radiator fan will reduce (for example rotating speed is slack-off), and just its cold air flow that can suck can reduce, and therefore heat dissipation also reduces.Thus, the temperature of electronic component be difficult for to reduce, and the usefulness performance of computer equipment will variation, and makes electronic component Yin Gaowen easily and damage.
Summary of the invention
The purpose of this invention is to provide a kind of radiator fan that is used for computer equipment, it is reversed to reach the effect of dedusting in special time.
Another object of the present invention is by the dedusting of the radiator fan of computer equipment running, with avoid electronic component in the computer equipment because being infected with dust the effect reduction even the lost of life.
A further object of the present invention is by the dedusting of the radiator fan of computer equipment running, and by the efficacy exertion of the electronic component in the computer equipment, makes the due effect of computer equipment fully to bring into play.
In view of this, the dust arrester that the invention provides a kind of method of utilizing the radiator fan dedusting and can use for computer equipment.Comprise mobile computer, desktop PC or server in this alleged computer equipment.Dust collection method of the present invention comprises:
Step 1: whether the temperature of judging an electronic component is higher than a specified temp, and in preferred embodiment, this electronic component can be processor (for example CPU), internal memory, north bridge crystal, hard disk, VGA display card or other fellow.Preferably, this specified temp is between 60 ℃ to 100 ℃.
Step 2:, then make radiator fan counter-rotating (reverse) reach a special time up to timer as if the "Yes" that is judged as of step 1.In preferred embodiment, this special time is less than 10 seconds.
If within the special time when counter-rotating, the temperature that pick-up unit (Sensor) detects electronic component is lower than specified temp, represent that then dust is eliminated, just can wait until the counter-rotating that just finishes radiator fan when special time reaches this moment, and can finish counter-rotating ahead of time.Therefore, in this preferred embodiment, step 2 can further comprise repeating step: whether the temperature of judging electronic component is higher than this specified temp, if be judged as "No", then stops the counter-rotating of this radiator fan.
Except the judgement of foundation temperature as the running of radiator fan whether, the present invention also can be according to the rotating speed of radiator fan as criterion, if when just the rotating speed of radiator fan is lower than a specific rotation speeds, just represents that amount of dust is too much.So it is similar in above-mentioned person, within the special time in when counter-rotating, the rotating speed that pick-up unit detects radiator fan just often represents that then dust is eliminated, just can wait until the counter-rotating that just finishes radiator fan when special time reaches this moment, and can finish counter-rotating ahead of time.Therefore, in this preferred embodiment, step 2 can further comprise repeating step: whether the rotating speed of judging radiator fan is lower than a specific rotation speeds, if be judged as "No", then stops the counter-rotating of this radiator fan.Preferably, this specific rotation speeds is changeed (RPM between per second 3000 to 5000; Revolutions Per Minute).
When the present invention can be applicable to the computer equipment shutdown, make radiator fan counter-rotating running reach the purpose of dedusting.Therefore, in preferred embodiment, judge whether the temperature of electronic component is higher than before the step of specified temp, further comprise step:
Receive a shutdown command, for example send shutdown command (command) by operating system; And
Call out an interrupt interface parameter, this interrupt interface parameter is defined within basic input output system of computer (BIOS), reaches the running of preparation shutdown by this.
When the running of finishing dedusting, the present invention also can note down the clip Text of dedusting running, technician's reference for computer equipment, for example can note down time, rotating speed, temperature etc., radiator fan counter-rotating just in when, the counter-rotating speed what are, and/or the temperature of electronic component be what or the like.Therefore, in this preferred embodiment, after timer reached the step of special time, the present invention can further comprise step in the radiator fan counter-rotating:
Read a reversal data of this radiator fan, for example this reversal data can comprise the rotary speed data of radiator fan, the temperature data of electronic component or the time data of timer; And
This reversal data of this radiator fan is write a reservoir, and for example reservoir can be CMOS, EEPROM, BIOS Flash ROM or TPM.
Perhaps, when the present invention also can be applicable to electronic component idle (idle) in the computer equipment, and need not be applied in as above-mentioned shutdown the time, can make radiator fan counter-rotating running reach the purpose of dedusting.So in one embodiment, whether the present invention is higher than in the temperature of judging electronic component before the step of specified temp, further comprises step:
Judge whether this electronic component is in an idle state (idle), for example can detect the C2 of south bridge crystal or C3 buffer (register) to judge; And
If be judged as "Yes", judge then whether the temperature of this electronic component is higher than the step of this specified temp.
At above-mentioned method step one, its be with " temperature of electronic component " as criterion, it is as criterion with " rotating speed of radiator fan " that the present invention can also have another embodiment.In the present embodiment, the method for the present invention's disclosure comprises:
Whether the rotating speed of judging radiator fan is lower than a specific rotation speeds, similar ground, and in one embodiment, this specific rotation speeds is changeed (RPM) between per second 3000 to 5000, and
If be judged as "Yes", then make radiator fan counter-rotating (reverse) reach a special time up to timer.
Similar in aforesaid method, make the radiator fan counter-rotating reach the step of special time up to timer, also can judge whether that the electronic component temperature descends, judge that perhaps the rotating speed of radiator fan has recovered normally, with as the condition that stops radiator fan counter-rotating.Therefore its method step repeats no more also as mentioned above.
Similarly, in the present embodiment, above-mentioned dust removal step can operate when computer equipment is idle when shutdown or also.Therefore its method step repeats no more also as mentioned above.
In this preferred embodiment, also can note down the clip Text of dedusting running, for technician's reference of computer equipment, for example can note down time, rotating speed, temperature etc., radiator fan counter-rotating just in when, how much speed of counter-rotating is, and/or the temperature of electronic component be what or the like.Its method step also repeats no more also as mentioned above.
In addition, the present invention has also disclosed the dust arrester that a kind of computer equipment uses, and it utilizes above-mentioned dust collection method, and wherein this computer equipment can be mobile computer, desktop PC or server.This dust arrester comprises: but but the radiator fan of forward and reverse, one and the controller that is electrical connected of radiator fan and one and the be electrical connected pick-up unit of temperature of detected electrons part of controller preferably also comprises a timer that links to each other with the controller electricity.Dust arrester of the present invention can be realized above-mentioned dust collection method by the firmware that is stored in this controller.
In preferred embodiment, this dust arrester also comprises a basic input output system of computer (BIOS) and an operating system (OS), basic input output system of computer definable one interrupt interface parameter makes this dust arrester carry out dedusting in the time of can carrying out the running of shutting down according to the interrupt interface parameter by this.
Description of drawings
Fig. 1 is according to dust arrester of the present invention, shows its system's block schematic diagram.
Fig. 2 is according to firmware of the present invention, shows its synoptic diagram by controller control radiator fan.
Fig. 3 A, 3B, 4A and 4B are according to method of the present invention, show the different process flow diagrams that several make the radiator fan counter-rotating.
Fig. 5 A and 5B are according to one embodiment of the invention, show to utilize the process flow diagram that makes the radiator fan counter-rotating when entering off-mode.
Fig. 6 A and 6B are according to another embodiment of the present invention, show to utilize the process flow diagram that makes the radiator fan counter-rotating when leaving unused.
The reference numeral explanation
1, dust arrester 11, radiator fan
12, timer 13, controller
14, pick-up unit 15, electronic component
16, firmware 17, BIOS
18, OS 171, interruption interface parameter
19, reservoir
Embodiment
For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and be described with reference to the accompanying drawings as follows.
Please refer to Fig. 1, the present invention discloses a kind of dust arrester 1, it can use for a computer equipment (not icon).Because emphasis of the present invention is not to be on the modeling structure of dust arrester 1 or computer equipment, does not therefore show the stereographic map of dust arrester 1 or computer equipment, and only show its system block diagrams.At this alleged computer equipment can be a mobile computer, a desktop PC, a server or other fellow.This dust arrester 1 comprises a radiator fan 11, a controller 13 and a pick-up unit 14, preferably also comprises a timer 12.In one embodiment, dust arrester 1 also can further comprise operating system (OS) 18 and basic input output system of computer (BIOS) 17, below will have a detailed description.
Please also refer to Fig. 1 and Fig. 2, but radiator fan 11 forward and reverse when just changeing, it can make electronic component 15 coolings in the computer equipment with the cold air suction of computer equipment outside; When radiator fan 11 counter-rotatings, promptly can in the other direction dust outwards be taken out of, to reach the effect of dedusting.
Controller 13 (for example KBC or fellow) links to each other with radiator fan 11 and a pick-up unit 14 electricity, pick-up unit 14 can detect the temperature of an electronic component 15 and/or can detect the rotating speed of radiator fan 11, and wherein electronic component 15 can be processor (for example CPU or fellow), internal memory, north bridge crystal, hard disk or VGA display card or other fellow.
At different electronic component 15, the deviser can set different specified temps and the special time basis for estimation as firmware 16, and preferably, for example specified temp is located at 60 ℃ to 100 ℃, and special time then is less than 10 seconds.For example, when the temperature that the deviser can be set in electronic component 15 is higher than 60 ℃,, radiator fan 11 counter-rotatings just stop even counting to 5 seconds up to timer 12.Perhaps for example, when the rotating speed of radiator fan 11 is lower than per second 3000 commentaries on classics (RPM),, radiator fan 11 counter-rotatings just stop even counting to 5 seconds up to timer 12.
In one embodiment of this invention, the running of dedusting just operates when utilizing computer equipment to prepare to enter off-mode, therefore this dust arrester 1 also further can comprise a basic input output system of computer (BIOS) 17 and an operating system (OS) 18, BIOS 17 definables one interrupt interface parameter 171.When the user shuts down, send a shutdown command by OS 18 execution earlier, can utilize computer program to receive shutdown command and call interruption interface parameters 171 then, to prepare shutdown.
For the ease of the running of technician's identification dust arrester 1, the present invention also can comprise a reservoir 19 to store a reversal data of radiator fan 11.This reversal data can comprise the rotary speed data of radiator fan 11, the temperature data of electronic component 15 or the time data of timer 12.This reservoir 19 can be a CMOS, an EEPROM, a BIOS Flash ROM, a TPM or other fellow.Thus, the technician just can recognize that what, the cooling-down effect to electronic component 15 or the like that reverses the rotating speed when radiator fan 11 reverses, reverses be, sets above-mentioned specified temp and/or special time to adjust from these reversal datas.
Just as the skilled personnel to understand, the radiator fan 11 of dust arrester 1 of the present invention can be according to input positive voltage or negative voltage, with decision radiator fan 11 forward or reverse, and can be the rotating speed size of may command radiator fan 11 by the control voltage swing.Therefore radiator fan 11 just change, reverse or the control of rotating speed size repeats no more.
In addition, the present invention discloses a kind of method of utilizing radiator fan 11 dedustings, please refer to Fig. 3 A and Fig. 3 B, method especially of the present invention can be utilized the radiator fan of mobile computer, the radiator fan of desktop PC or the radiator fan of server, to realize eliminating the purpose of dust.
After this method flow begins, promptly carry out step S311: whether the temperature of judging electronic component 15 is higher than specified temp.This electronic component 15 can be a processor, internal memory, a north bridge crystal, a hard disk or a VGA display card.As mentioned above, can utilize the temperature of pick-up unit 14 detected electrons parts 15.If be judged as "Yes", then carry out step S312: make radiator fan 11 counter-rotatings.As mentioned above, specified temp can be set between 60 ℃ to 100 ℃.If step S311 is judged as "No", represent that amount of dust may be few this moment, then process ends.
In one embodiment, manyly be eliminated to this in order to judge that more accurately amount of dust is whether genuine, the present invention is the step of a judgement how, shown in Fig. 3 B, step S311 is judged as "Yes", then carries out step S322: whether the rotating speed of judging radiator fan 11 is lower than specific rotation speeds.If step S322 is judged as "Yes", just carries out step S312, otherwise be process ends.As mentioned above, specific rotation speeds can be set in per second 3000 to 5000 changes (RPM).
Perhaps, shown in Fig. 4 A and Fig. 4 B, the present invention also can judge whether the rotating speed of radiator fan 11 is lower than specific rotation speeds (step S411), with the foundation (step S412) that whether will reverse as radiator fan 11.Whether the rotating speed that perhaps can also judge radiator fan 11 earlier is lower than specific rotation speeds (step S411), if "Yes", and then ground judges whether electronic component 15 is higher than specified temp (step S422).
For fear of the too frequent running of radiator fan 11 (comprising forward and reverse), the present invention carries out the running of dedusting in the time of can utilizing computer equipment to prepare to enter off-mode.Please refer to Fig. 5 A, is when utilizing the pass machine operation, to judge whether to carry out the dedusting running at the embodiment of Fig. 5 A.After the user pressed shutdown, operating system 18 was promptly sent shutdown command, by the interrupt interface parameter 171 (step S51 and S52) that computer program receives this shutdown command and calls out BIOS 17, shut down with preparation.
Ensuing determining step S531 and the step S54 that makes radiator fan 11 counter-rotatings are similar to step S311 and the S312 of above-mentioned Fig. 3 A, so repeat no more.Preferably, when execution in step S54, pick-up unit 14 is the temperature of detected electrons part 15 sustainably still, judge once more by the firmware 16 that is stored in controller 13 whether electronic component 15 is higher than specified temp (step S551), if be judged as "No", the temperature of promptly representing electronic component 15 descends, and dust out again is so can stop the counter-rotating (step S560) of radiator fan 11.
In the embodiment of Fig. 5 A, the judgement that whether will make radiator fan 11 counter-rotatings is the temperature (step S531) according to electronic component 15, in preferred case, can repeat to judge the temperature (step S551) of electronic component 15 when radiator fan 11 counter-rotatings.Please refer to Fig. 5 B, whether will make the judgement of radiator fan 11 counter-rotatings in preferred case, when radiator fan 11 counter-rotatings, repeat to judge the temperature (step S552) of electronic component 15 more earlier according to the rotating speed (step S532) of radiator fan 11.Though the counter-rotating of the judgement that Fig. 5 A and Fig. 5 B show decision startup radiator fan 11 such as above-mentioned, also or the step S551 of Fig. 5 A can be judged instead the rotating speed (not shown) of radiator fan 11, or the step S552 of Fig. 5 B also judges the rotating speed (not shown) of radiator fan 11 instead.
Carry out the counter-rotating running (embodiment shown in Fig. 5 A and Fig. 5 B) of radiator fan 11 when shutting down, the counter-rotating dedusting of execution radiator fan 11 when the present invention also can utilize electronic component 15 runnings idle (idle) except utilizing.Please refer to Fig. 6 A, at first step S61 judges whether electronic component 15 is in idle state, for example, can detect the C2 of south bridge crystal or C3 buffer (register) to judge whether this electronic component 15 is in idle state.If be judged as "Yes", then carry out step S621, otherwise be process ends, for example get back to running (runtime) state.The step S621 of Fig. 6 A, S63, S641 and S65 are similar to step S531, S54, S551 and the S560 of Fig. 5 A respectively, and its content is detailed as above-mentioned, so repeat no more.
It is elder generation's rotating speeds (the step S622 of Fig. 6 B) according to radiator fan 11 that the difference of Fig. 6 B and Fig. 6 A only is to make radiator fan 11 counter-rotatings.Therefore step S622, S63, S642 and the S65 of Fig. 6 B also are step S532, S54, S552 and the S560 that is similar to Fig. 5 B respectively, and its content is detailed as above-mentioned, so repeat no more.
In sum, the deposition possibility that focuses on judging amount of dust of the present invention, may cause electronic component 15 temperature risings (it is not good to make radiator fan 11 just change radiating effect) when for example amount of dust is too much and may cause the rotating speed of radiator fan 11 to reduce, therefore can utilize the temperature of judging electronic component 15 and/or the rotating speed of judging radiator fan 11, to determine whether to start the counter-rotating of radiator fan 11, dust is discharged.Because specified temp, special time (the reversing time length of radiator fan 11), specific rotation speeds can be by the technician according to different requirements set different values, therefore judge the temperature of electronic component 15 and/or the rotating speed of judgement radiator fan 11, do not limit and be which elder generation's judgement, which back are judged or the judgement (for example shown in Fig. 4 B or Fig. 3 B) that whether strictly interlocks.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; those skilled in the art can do a little change and retouching under the premise without departing from the spirit and scope of the present invention, so protection scope of the present invention is as the criterion with claim of the present invention.
Claims (39)
1, a kind of method of utilizing the radiator fan dedusting when computer equipment is prepared to enter off-mode comprises:
Receive a shutdown command;
Call out an interrupt interface parameter, this interrupt interface parameter is defined within a basic input output system of computer;
Whether the temperature of judging an electronic component is higher than a specified temp; And
If be judged as "Yes", then make this radiator fan counter-rotating reach a special time up to a timer.
2, the method for claim 1, wherein this electronic component is a processor, an internal memory, a north bridge crystal, a hard disk or a VGA display card.
3, the method for claim 1, wherein this radiator fan can be the radiator fan of a mobile computer, the radiator fan of a desktop PC or the radiator fan of a server.
4, the method for claim 1, this radiator fan counter-rotating reaches the step of this special time up to this timer, further comprise repeating step: whether the temperature of judging this electronic component is higher than this specified temp, if be judged as "No", then stops the counter-rotating of this radiator fan.
5, the method for claim 1, this radiator fan counter-rotating reaches the step of this special time up to this timer, further comprise step: whether the rotating speed of judging this radiator fan is lower than a specific rotation speeds, if be judged as "No", then stops the counter-rotating of this radiator fan.
6, method as claimed in claim 5 after this timer reaches the step of this special time, further comprises step in this radiator fan counter-rotating:
Read a reversal data of this radiator fan; And
This reversal data of this radiator fan is write a reservoir.
7, method as claimed in claim 6, wherein this reversal data comprises a rotary speed data of this radiator fan, a temperature data of this electronic component or time data of this timer.
8, method as claimed in claim 6, wherein this reservoir can be a CMOS, an EEPROM, a BIOS Flash ROM or a TPM.
9, the method for claim 1, wherein this specified temp is between 60 ℃ to 100 ℃.
10, the method for claim 1, wherein this special time was less than 10 seconds.
11, method as claimed in claim 5, wherein this specific rotation speeds is changeed between per second 3000 to 5000.
12, a kind of method of utilizing the radiator fan dedusting when computer equipment is prepared to enter off-mode comprises:
Receive a shutdown command;
Call out an interrupt interface parameter, this interrupt interface parameter is defined within a basic input output system of computer;
Whether the rotating speed of judging this radiator fan is lower than a specific rotation speeds, and
If be judged as "Yes", then make this radiator fan counter-rotating reach a special time up to a timer.
13, method as claimed in claim 12, this radiator fan counter-rotating reaches the step of this special time up to this timer, further comprise step: whether the temperature of judging an electronic component is higher than a specified temp, if be judged as "No", then stops the counter-rotating of this radiator fan.
14, method as claimed in claim 13, wherein this electronic component is a processor, an internal memory, a north bridge crystal, a hard disk or a VGA display card.
15, method as claimed in claim 12, wherein this radiator fan can be the radiator fan of a mobile computer, the radiator fan of a desktop PC or the radiator fan of a server.
16, method as claimed in claim 12, this radiator fan counter-rotating reaches the step of this special time up to this timer, further comprise repeating step: whether the rotating speed of judging this radiator fan is lower than this specific rotation speeds, if be judged as "No", then stops the counter-rotating of this radiator fan.
17, method as claimed in claim 13 after this timer reaches the step of this special time, further comprises step in this radiator fan counter-rotating:
Read a reversal data of this radiator fan; And
This reversal data of this radiator fan is write a reservoir.
18, method as claimed in claim 17, wherein this reversal data comprises a rotary speed data of this radiator fan, a temperature data of this electronic component or time data of this timer.
19, method as claimed in claim 17, wherein this reservoir can be a CMOS, an EEPROM, a BIOS Flash ROM or a TPM.
20, method as claimed in claim 13, wherein this specified temp is between 60 ℃ to 100 ℃.
21, method as claimed in claim 12, wherein this special time was less than 10 seconds.
22, method as claimed in claim 12, wherein this specific rotation speeds is changeed between per second 3000 to 5000.
23, a kind of dust arrester for computer equipment use, it comprises:
One radiator fan, but these radiator fan forward and reverse;
One controller is electrical connected with this radiator fan;
One pick-up unit is electrical connected with this controller, in order to detect the temperature of an electronic component; And
One firmware is stored in this controller, uses the following mechanism that realizes:
Whether the temperature of judging this electronic component is higher than a specified temp; And
If be judged as "Yes", then make this radiator fan counter-rotating,
Wherein, further comprise a basic input output system of computer and an operating system, this basic input output system of computer definable one interrupt interface parameter, before execution judges whether the temperature of this electronic component is higher than this specified temp, further carry out earlier by this:
Receive a shutdown command, this shutdown command is sent by this operating system; And
Call out this interrupt interface parameter.
24, dust arrester as claimed in claim 23 further comprises a timer, and this timer and this controller are electrical connected, and the counter-rotating of this radiator fan reaches a special time up to this timer.
25, dust arrester as claimed in claim 23, wherein this electronic component is a processor, an internal memory, a north bridge crystal, a hard disk or a VGA display card.
26, dust arrester as claimed in claim 23, wherein this computer equipment can be a mobile computer, a desktop PC or a server.
27, dust arrester as claimed in claim 24 further comprises a reservoir, in order to store a reversal data of this radiator fan, is carrying out this radiator fan counter-rotating after this timer reaches this special time, further carries out:
Read the reversal data of this radiator fan; And
The reversal data of this radiator fan is write this reservoir.
28, dust arrester as claimed in claim 27, wherein this reversal data comprises time data of a temperature data or this timer of this electronic component.
29, dust arrester as claimed in claim 27, wherein this reservoir can be a CMOS, an EEPROM, a BIOS Flash ROM or a TPM.
30, dust arrester as claimed in claim 23, wherein this specified temp is between 60 ℃ to 100 ℃.
31, dust arrester as claimed in claim 24, wherein this special time was less than 10 seconds.
32, a kind of dust arrester for computer equipment use, it comprises:
One radiator fan, but these radiator fan forward and reverse;
One controller is electrical connected with this radiator fan;
One pick-up unit is electrical connected with this controller, in order to detect the rotating speed of this radiator fan; And
One firmware is stored in this controller, uses the following mechanism of reaching:
Whether the rotating speed of judging this radiator fan is lower than a specific rotation speeds; And
If be judged as "Yes", then make this radiator fan counter-rotating,
Wherein, further comprise a basic input output system of computer and an operating system, this basic input output system of computer definable one interrupt interface parameter, before execution judges whether the rotating speed of this radiator fan is lower than this specific rotation speeds, further carry out earlier by this:
Receive a shutdown command, this shutdown command is sent by this operating system; And
Call out this interrupt interface parameter.
33, dust arrester as claimed in claim 32 further comprises a timer, and this timer and this controller are electrical connected, and the counter-rotating of this radiator fan reaches a special time up to this timer.
34, dust arrester as claimed in claim 32, wherein this computer equipment can be a mobile computer, a desktop PC or a server.
35, dust arrester as claimed in claim 33 further comprises a reservoir, in order to store a reversal data of this radiator fan, is carrying out this radiator fan counter-rotating after this timer reaches this special time, further carries out:
Read the reversal data of this radiator fan; And
The reversal data of this radiator fan is write this reservoir.
36, dust arrester as claimed in claim 35, wherein this reversal data comprises time data of a rotary speed data or this timer of this radiator fan.
37, dust arrester as claimed in claim 35, wherein this reservoir can be a CMOS, an EEPROM, a BIOS Flash ROM or a TPM.
38, dust arrester as claimed in claim 33, wherein this special time was less than 10 seconds.
39, dust arrester as claimed in claim 32, wherein this specific rotation speeds is changeed between per second 3000 to 5000.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101204933A CN100478837C (en) | 2005-11-18 | 2005-11-18 | Method for dedusting by radiator fan and dust cleaning apparatus for computer device |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101204933A CN100478837C (en) | 2005-11-18 | 2005-11-18 | Method for dedusting by radiator fan and dust cleaning apparatus for computer device |
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| CN1967442A CN1967442A (en) | 2007-05-23 |
| CN100478837C true CN100478837C (en) | 2009-04-15 |
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| US9399999B2 (en) | 2009-10-23 | 2016-07-26 | Sunonwealth Electric Machine Industry Co., Ltd. | Heat dissipating fan |
| US9429167B2 (en) | 2009-10-23 | 2016-08-30 | Sunonwealth Electric Machine Industry Co., Ltd. | Heat dissipating fan |
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