CN203178902U - Cooling fan device with dust extraction function - Google Patents
Cooling fan device with dust extraction function Download PDFInfo
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- CN203178902U CN203178902U CN 201320083357 CN201320083357U CN203178902U CN 203178902 U CN203178902 U CN 203178902U CN 201320083357 CN201320083357 CN 201320083357 CN 201320083357 U CN201320083357 U CN 201320083357U CN 203178902 U CN203178902 U CN 203178902U
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Abstract
The utility model discloses a cooling fan device with a dust extraction function. The cooling fan device with the dust extraction function comprises a timing controller, a fist power switch and a second power switch, and the first power switch and the second power switch are respectively connected between the power output end of a direct-current power supply and the power input end of a direct-current fan to control the corotation and the reverse rotation of the direct-current fan. The time of changing over or connecting of the first power switch and the time of changing over or connecting of the second power switch are controlled through the timing controller, the direct-current fan is made to rotate reversely at full speed firstly, so that the dust of a position corresponding to a wind direction and the dirt retention position of the inner side of the fan blades of the fan is blown away by utilizing wind power generated by the reverse rotation of the fan blades of the fan and shearing force generated by the fan blades of the fan and wind, and the effect of automatic dust extraction is achieved. The direct-current fan is changed back to the corotation after rotating reversely for a period to carry out a heat radiating function.
Description
Technical field
The utility model relates to a kind of radiator fan, refers to it is a kind of radiator fan device with automatic dedusting function especially.
Background technology
Electronic equipment and element thereof can produce a large amount of heat energy when work rise temperature, if temperature can't leave fast and effectively, causes electronic equipment just at work to damage possibly, therefore should be noted that the radiating effect of electronic equipment.
At present city and the kind that goes up the radiating mode that is used for electronic equipment have air-cooled, heat pipe, liquid cooling, semiconductor refrigerating, compressor cooling etc., wherein wind-cooling heat dissipating is modal, and main method makes air-flow dispel the heat by the electronic equipment in the heating, the table of element with regard to being to use fan; For example Fig. 4 one known host computer 90 has a ventilating opening 92 on a casing 91, this ventilating opening 92 is located at position on this casing 91 corresponding to the power supply unit in the casing 91, these ventilating opening 92 places are equiped with a radiator fan 93, be used for promoting the convection current of air, when the electric power starting of host computer 90, this radiator fan 93 rotation at a high speed, cold air suction ventilation mouth 92 is entered in the casing 91, when cold air sucks and hot-air when discharging, just form the convection current of cold and hot air, reach the purpose of heat radiation.
Yet, result after these radiator fan 93 long-term uses but causes its flabellum 94 and host computer 90 inside to adhere to a large amount of dusts, the mutual friction and make flabellum 94 be with static mutually of reason its flabellum 94 that is radiator fan 93 when running and air, charged flabellum 94 can make dust in air absorption, especially under the long-term rotation, laying dust often all is attached to the inboard of flabellum 94, because blast herein is also minimum, or directly dust is sucked host computer 90 inside under the long-term rotation, when laying dust more and more seriously just can influence radiating effect, make host computer 90 overheated and damage.
The utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of radiator fan device with dedusting function, and the power supply heat sinking of power supply subset uses, and the function of automatic removing laying dust is arranged, and avoids electronic equipment to cause damage because of overheated.
The technical scheme that its technical matters that solves the utility model adopts is: the radiator fan device with dedusting function; It comprises,
One DC fan has a power input, and has the rotating function;
One first power switch has a power input, a control end and a power output end, and this power output end of this first power switch is connected with this power input of this DC fan;
One second source switch has a power input, a control end and a power output end, and this power output end of this second source switch is connected with this power input of this DC fan;
One timing controller, have a plurality of drive ends, respectively this drive end connects one to one with this control end of this first power switch and this control end of this second source switch respectively, and this timing controller can switch conducting and the ON time of this first power switch and this second source switch by the current potential that changes this drive end;
This timing controller can make this first power switch conducts a period of time earlier, make this DC fan carry out dedusting function after, switch again by this second source switch conduction, make this DC fan carry out heat sinking function.
Also comprise a temperature control circuit; This temperature control circuit comprises a temperature detect switch (TDS) and a hot end instrument that is connected with this temperature detect switch (TDS), this temperature detect switch (TDS) has a power input, a control end and a power output end, this power output end of this temperature detect switch (TDS) is connected with this power input of this second source switch, and this control end of this temperature detect switch (TDS) is connected with this hot end instrument.
This first power switch and this second source switch are a power switch.
This hot end instrument is a thermistor.
Also comprise a power supply unit, this power supply unit has a plurality of power output ends, and this power supply unit is for being used for the direct supply of supply multiple voltage.
The beneficial effects of the utility model are: mainly switched by timing controller and control first, the ON time of second source switch, when making this DC fan, first power switch conducts reverses at full speed, the wind-force that the flabellum that utilizes DC fan produces when counter-rotating and the shearing that produces with wind, power supply inside with electronic equipment, the laying dust of electronic component and flabellum inboard dispels, reach the effect of automatic dedusting, this timing controller changes this drive end current potential after after a while, DC fan is switched Hui Zhengzhuan simultaneously, the action of dispelling the heat reaches automatic removing laying dust purpose in this way and avoids electronic equipment because of the overheated damage that causes.
Description of drawings
By reference to the accompanying drawings the radiator fan device with automatic dedusting function described in the utility model is elaborated down.
Fig. 1 is the circuit diagram with radiator fan device of automatic dedusting function described in the utility model.
Fig. 2 is the just commentaries on classics constitutional diagram with radiator fan device of automatic dedusting function described in the utility model.
Fig. 3 is the counter-rotating dedusting constitutional diagram with radiator fan device of automatic dedusting function described in the utility model.
Fig. 4 is a known electric brain server schematic appearance.
The main element symbol description
10. DC fan 11. flabellums
12. groove 20. first power switches
30. second source switch 40. timing controllers
50. temperature control circuit 51. temperature detect switch (TDS)s
52. hot end instrument 60. power supply units
90. host computer 91. casings
92. ventilating opening 93. radiator fans
94. flabellum
Embodiment
Please refer to shown in Figure 1ly about the circuit structure of a preferred embodiment of the present utility model, for convenience of description, the numerical value of carrying in the present embodiment for example, is not numerical value or the time in order to limit its specific implementation just.
The utlity model has the radiator fan device of dedusting function, it mainly is made up of a DC fan 10, one first power switch 20, a second source switch 30, a timing controller 40, further comprises a temperature control circuit 50 and a power supply unit 60 in the present embodiment; Wherein,
This DC fan 10 has a power input, and has the rotating function; This first power switch 20, second source switch 30 have a power input, a control end and a power output end respectively, and its power output end is connected to the power input of DC fan 10 jointly; In the present embodiment, the power input of this first power switch 20 connects one first power supply V1, and the power input of this second source switch 30 connects a second source V2; In present embodiment, this first power switch 20 is respectively a power switch with second source switch 30;
This timing controller 40 has a plurality of drive ends, each drive end is connected with the control end of first power switch 20, second source switch 30 respectively, this timing controller 40 is by changing the current potential of drive end, to switch conducting and the ON time thereof of first power switch 20, second source switch 30; In the present embodiment, this timing controller 40 has the first drive end OUTPUT1 and the second drive end OUTPUT2 and a power input VDD.
This temperature control circuit 50 comprises a temperature detect switch (TDS) 51 and a hot end instrument that is connected with temperature detect switch (TDS) 52, this temperature detect switch (TDS) 51 has a power input, a control end and a power output end, its power output end is connected to the power input of second source switch 30, this control end is connected with hot end instrument 52, and this hot end instrument 52 is in order to these power supply unit 60 inner fin temperature of sensing; In the present embodiment, the power input of this temperature detect switch (TDS) 51 is one the 3rd power supply V3; In present embodiment, this hot end instrument 52 is a thermistor, mainly be that thermo-contact is on the heat radiator of these power supply unit 60 inside, impedance diminishes and temperature detect switch (TDS) 51 power output end voltages, electric current is uprised behind this thermistor induction heat, and the second source switch 30 by conducting makes DC fan 10 accelerate again.
This power supply unit 60 has a plurality of power output ends, in order to supply the direct supply of different voltages, comprises 12V, 5V etc., producing aforesaid first to the 3rd power supply V1～V3 and the VDD respectively, and supplies the working power of aforementioned each circuit and DC fan 10.
Principle of work about this novel preferred embodiment, further instruction is as described below: please refer to shown in Figure 2, for the turn under these DC fan 10 normal radiating state is done, DC fan 10 has most flabellums 11, its flabellum 11 because of for a long time with the mutual friction of air phase, and make flabellum 11 be with static and easily dust in air is adsorbed, be inboard groove 12 places that are attached to flabellum 11 by it, and directly dust be adsorbed on the heat radiator or electronic component of power supply unit 60 inside under the long-term use; Therefore, this is novel to provide a kind of radiator fan device that is applied to have on the power supply unit 60 automatic dedusting function, when power supply unit 60 starts, provide simultaneously the first power supply V1 of a 12V voltage in first power switch 20, another 5V voltage in second source switch 30 second source V2 and a 12V voltage in the 3rd power supply V3 of temperature control circuit 50, and provide the power input VDD of a 5V voltage to this timing controller 40 by the power output end of power supply unit 60;
The first drive end OUTPUT1 of this timing controller 40 is that noble potential, the second drive end OUTPUT2 are electronegative potential, and the 20 therefore conductings of this first power switch, and provides 12V voltage to carry out full speed to this DC fan 10 by this power output end to reverse;
Please refer to shown in Figure 3, be these DC fan 10 counter-rotating actions, the wind-force that the flabellum 11 that utilizes DC fan 10 produces when counter-rotating and the shearing that produces with wind, the laying dust of power supply unit 60 inner fins, electronic component and flabellum 11 inboards is outwards dispelled, reach the effect of automatic dedusting; This DC fan 10 can automatically switch into after reversing 40 seconds at full speed more just changes 10 seconds, also timing after 40 seconds when DC fan 10 counter-rotatings of timing controller 40 simultaneously, make the first drive end OUTPUT1 switch to electronegative potential and make the 20 not conductings of first power switch, make the second drive end OUTPUT2 switch to noble potential, and make this second source switch 30 conductings, and the power output end voltage via temperature detect switch (TDS) 51 raises, when heatsink temperature is raise, make DC fan turn round at full speed, carry out the heat radiation action that DC fan 10 is accelerated with this temperature control mode.
By above-mentioned principle of work as can be known, this is novel mainly to be the ON time of being switched first power switch 20 by the control end of timing controller 40, when 20 conductings of first power switch make this DC fan 10 counter-rotating at full speed, the wind-force that the flabellum 11 that utilizes DC fan 10 produces when counter-rotating and the shearing that produces with wind, power supply unit 60 inner fins, electronic component and flabellum 11 inboard adsorbed dusts are dispelled, the effect of automatic dedusting can both be arranged in the time of can reaching each the start in this way; This timing controller 40 changes these drive end current potentials after after a while, and DC fan 10 is switched Hui Zhengzhuan simultaneously, and proceeds temperature control heat radiation action, reaches automatic dust out in this way and avoids electronic equipment because of the overheated damage that causes.
Claims (5)
1. radiator fan device with dedusting function, tool is characterised in that, comprises:
One DC fan has a power input, and has the rotating function;
One first power switch has a power input, a control end and a power output end, and this power output end of this first power switch is connected with this power input of this DC fan;
One second source switch has a power input, a control end and a power output end, and this power output end of this second source switch is connected with this power input of this DC fan;
One timing controller, have a plurality of drive ends, respectively this drive end connects one to one with this control end of this first power switch and this control end of this second source switch respectively, and this timing controller can switch conducting and the ON time of this first power switch and this second source switch by the current potential that changes this drive end;
This timing controller can make this first power switch conducts a period of time earlier, make this DC fan carry out dedusting function after, switch again by this second source switch conduction, make this DC fan carry out heat sinking function.
2. the radiator fan device with dedusting function as claimed in claim 1 is characterized in that, also comprises a temperature control circuit; This temperature control circuit comprises a temperature detect switch (TDS) and a hot end instrument that is connected with this temperature detect switch (TDS), this temperature detect switch (TDS) has a power input, a control end and a power output end, this power output end of this temperature detect switch (TDS) is connected with this power input of this second source switch, and this control end of this temperature detect switch (TDS) is connected with this hot end instrument.
3. the radiator fan device with dedusting function as claimed in claim 2 is characterized in that, this first power switch and this second source switch are a power switch.
4. the radiator fan device with dedusting function as claimed in claim 3 is characterized in that, this hot end instrument is a thermistor.
5. the radiator fan device with dedusting function as claimed in claim 4 is characterized in that, also comprises a power supply unit, and this power supply unit has a plurality of power output ends, and this power supply unit is for being used for the direct supply of supply multiple voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083357 CN203178902U (en) | 2013-02-22 | 2013-02-22 | Cooling fan device with dust extraction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083357 CN203178902U (en) | 2013-02-22 | 2013-02-22 | Cooling fan device with dust extraction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203178902U true CN203178902U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320083357 Expired - Fee Related CN203178902U (en) | 2013-02-22 | 2013-02-22 | Cooling fan device with dust extraction function |
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| CN (1) | CN203178902U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796645A (en) * | 2015-02-11 | 2015-07-22 | 康佳集团股份有限公司 | Laser television, as well as automatic dust-removing device and method thereof |
| CN112612340A (en) * | 2021-01-05 | 2021-04-06 | 青岛黄海学院 | Automatic heat dissipation and dust removal device for computer case |
| CN113589911A (en) * | 2021-08-02 | 2021-11-02 | 江苏科技大学 | Time delay heat dissipation mechanism for computer stable power supply |
| CN113960860A (en) * | 2021-11-08 | 2022-01-21 | 四川启睿克科技有限公司 | System and method capable of automatically processing dust accumulated on heat dissipation filter screen of projector |
-
2013
- 2013-02-22 CN CN 201320083357 patent/CN203178902U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796645A (en) * | 2015-02-11 | 2015-07-22 | 康佳集团股份有限公司 | Laser television, as well as automatic dust-removing device and method thereof |
| CN104796645B (en) * | 2015-02-11 | 2017-09-19 | 康佳集团股份有限公司 | A kind of laser television and its automatic dust removing apparatus and method |
| CN112612340A (en) * | 2021-01-05 | 2021-04-06 | 青岛黄海学院 | Automatic heat dissipation and dust removal device for computer case |
| CN113589911A (en) * | 2021-08-02 | 2021-11-02 | 江苏科技大学 | Time delay heat dissipation mechanism for computer stable power supply |
| CN113960860A (en) * | 2021-11-08 | 2022-01-21 | 四川启睿克科技有限公司 | System and method capable of automatically processing dust accumulated on heat dissipation filter screen of projector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20190222 |