CN101672294B - Fan module and system - Google Patents
Fan module and system Download PDFInfo
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- CN101672294B CN101672294B CN2008102138881A CN200810213888A CN101672294B CN 101672294 B CN101672294 B CN 101672294B CN 2008102138881 A CN2008102138881 A CN 2008102138881A CN 200810213888 A CN200810213888 A CN 200810213888A CN 101672294 B CN101672294 B CN 101672294B
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Abstract
The invention relates to a fan module, in particular to a fan module capable of automatically reducing the rotating speed of a fan when an object with static electricity is close to the fan. The fan module comprises a framework, the fan, an electrostatic induction unit and a controller. The fan is arranged in the framework. The electrostatic induction unit is arranged on the framework and is close to the fan. The controller is electrically coupled with the electrostatic induction unit. When the object with static electricity is close to the electrostatic induction unit, the electrostatic induction unit outputs an induction value to the controller. The controller determines whether to reduce the rotating speed of the fan according to the induction value.
Description
Technical field
The invention relates to a kind of blower module and system, and particularly can in the static electrification object during, reduce the blower module and the system of the rotating speed of fan automatically near fan relevant for a kind of.
Background technique
In the computer system, the quality of heat dissipation potential is for influencing one of factor of stability and usefulness.If the temperature of the element in the casing is too high, then can influence the running of computer system, can't read like hard disk.The used heat that is produced in order to get rid of element apace, computer system is equipped with fan as sink usually, makes computer system be able to normal operation under suitable temperature environment.
In order to reach heat dissipation potential preferably, fan is usually to run up.Yet,, can be scratched by flabellum if user's finger touches the fan that runs up because of carelessness.In the traditional fan module, a netted thing that blocks is arranged on the fan, touches fan with the finger that prevents the user.Yet this netted thing that blocks makes the volume of blower module increase.In addition, the netted thing that blocks is prone to be attached with dust and has influence on the fan air output, and then makes the radiating efficiency of blower module reduce.
Summary of the invention
The present invention is relevant for a kind of blower module and system, during near fan, reduces the rotating speed of fan in the static electrification object automatically.Finger with the person of avoiding the use of is hurt by the fan in turning round by this, to increase the Security of blower module and system.
According to a first aspect of the invention, propose a kind of blower module, comprise a framework, a fan, an electrostatic induction unit, reach a controller.Fan arrangement is in framework.Electrostatic induction unit is disposed on the framework, and is adjacent to fan.Controller and electrostatic induction unit electric property coupling.When a static electrification object near electrostatic induction unit, electrostatic induction unit is exported an influence value to controller.Controller determines whether reducing the rotating speed of fan according to influence value.
According to a second aspect of the invention, propose a kind of fan system, comprise a circuit board, a fan, an electrostatic induction unit and a controller.Fan and circuit board electric property coupling.The electrostatic induction element is arranged on the circuit board, and is adjacent to fan.Controller and electrostatic induction element electric property coupling.After a static electrification object was near the electrostatic induction element, the electrostatic induction element was exported an influence value to controller.Controller determines whether reducing the rotating speed of fan according to influence value.
For letting the foregoing of the present invention can be more obviously understandable, hereinafter is special lifts a preferred embodiment, and cooperates appended graphicly, elaborates as follows:
Description of drawings
Shown in Figure 1 is the schematic representation of accordinging to a kind of blower module of the embodiment of the invention.
Shown in Figure 2 is the schematic representation of the electrostatic induction unit of Fig. 1.
Shown in Figure 3 is the schematic representation of accordinging to a kind of fan system of another embodiment of the present invention.
Embodiment
How not avoiding the use of the person and scratched to reduce use dangerous and to keep better heat radiating effect by fan, is one of direction of endeavouring of the present invention.Please with reference to Fig. 1, it is depicted as the schematic representation according to a kind of blower module of the embodiment of the invention.Blower module 100 for example is to be disposed in the electronic product to get rid of the used heat that an electronic component is produced, and for example is to be disposed at computer system to get rid of the used heat of central processing unit (CPU).Blower module 100 comprises a framework 110, a fan 120, a plurality of electrostatic induction unit 130 and a controller 140.
Fan 120 is disposed in the framework 110.Electrostatic induction unit 130 is disposed on the framework 110, and is adjacent to fan 120.Controller 140 and electrostatic induction unit 130 electric property couplings.When a static electrification object 150 near electrostatic induction unit 130, one influence value Sv is to controller 140 in electrostatic induction unit 130 output.Controller 140 determines whether reducing the rotating speed of fan according to influence value Sv.For example, when controller 140 was judged influence value Sv greater than a critical value Th, controller 140 reduced the rotating speed of fan 120.Static electrification object 150 for example is not to use person's finger.Thus, when user's finger near with the fan 120 of high speed rotating the time, controller 140 slows down the rotating speed of fan 120, with the finger that prevents the user by fan 120 incised wounds.Preferably, as influence value Sv during greater than critical value Th, controller 140 can directly be closed fan 120, so that protection further to be provided.
In present embodiment, blower module 100 is to comprise that four electrostatic induction unit 130 are that example is done explanation.So in other embodiment, the number of electrostatic induction unit 130 is not limited thereto.For example, in practical application, blower module can comprise one, two, three electrostatic induction unit or the electrostatic induction unit more than four.In addition, in present embodiment, these a little electrostatic induction unit 130 are around fan 120.So, no matter from which direction near fan 120, it is approaching that these a little electrostatic induction unit 130 all can detect static electrification object 150, and slow down the rotating speed of fan 120 for static electrification object 150.
Please be simultaneously with reference to Fig. 2, it is depicted as the schematic representation of the electrostatic induction unit of Fig. 1.Electrostatic induction unit 130 comprises a carrier 131 and an electrostatic induction element 132.Carrier 131 for example is circuit board or flexible printed wiring board.Electrostatic induction element 132 is arranged on the carrier 131, and couples with controller 140.
In present embodiment, electrostatic induction element 132 is for example reached by a capacitive sensor (capacitivesensors).Capacitive sensor comprises two metallic conductors as an electric capacity, for example is two Copper Foils 133 and 134.The Copper Foil 133 and 134 of long strip for example is parallel to each other.When static electrification object 150 during near Copper Foil 133 and 134, Copper Foil 133 and 134 and static electrification object 150 between have capacity effect, and make the equivalent capacitance value between Copper Foil 133 and 134 increase.In this example, this equivalent capacitance corresponds to influence value Sv.Controller 140 has judged whether that according to this equivalent capacitance static electrification object 150 is approaching, whether reduces the rotating speed of fan 120 or closes fan 120 with decision.
In present embodiment, controller 140 can be arranged on the framework 110 or be arranged in the framework 110, or is arranged at outside the framework 110.In addition, when only using electrostatic induction element 132, Copper Foil 133 and 134 shape can be annular, rectangle or polygonal around fan.
In present embodiment, be that example is done explanation with blower module 100 with the electrostatic induction unit 130 that is disposed on the framework 110.Yet the allocation position of electrostatic induction unit is not limited to this.Now lifting another embodiment explains as follows.
Please with reference to Fig. 3, it is depicted as the schematic representation according to a kind of fan system of another embodiment of the present invention.Fan system 300 and blower module 100 different be in, a plurality of electrostatic induction elements 332 and the fan 320 of fan system 300 are electrically coupled on the same circuit board 331, and electrostatic induction element 332 is adjacent to fan 320.Therefore, when static electrification object 350 near electrostatic induction element 332, electrostatic induction element 332 will produce influence value Sv.As influence value Sv during greater than critical value Th, controller 340 will reduce the rotating speed of fan 320.
In present embodiment, the fan 320 of fan system 300 directly is arranged on the circuit board 331.So in other embodiment, fan 320 also can be arranged at a hole that is arranged in circuit board 331 central authorities, and electrostatic induction element 332 is around hole, and is adjacent to fan 320.All the other and blower module 100 something in common then repeat no more.
Blower module that the above embodiment of the present invention disclosed and system are arranged at contiguous fan place with electrostatic induction unit.When the static electrification object near electrostatic induction unit, the quantity of electric charge or the magnitude of voltage of electrostatic induction unit induction band static object are to produce influence value.When influence value greater than critical value, controller slows down the rotating speed of fan or closes fan.Thus, can the person of avoiding the use of be scratched, to reduce danger of using and the Security that improves blower module and system by the fan in running up.
In sum, though the present invention discloses as above with a preferred embodiment, so it is not in order to limit the present invention.Have common knowledge the knowledgeable in the technical field under the present invention, do not breaking away from the spirit and scope of the present invention, when doing various changes and retouching.Therefore, protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (15)
1. a blower module is characterized in that, the said fans module comprises:
Framework;
Fan is disposed in the said frame;
First electrostatic induction unit is disposed on the said frame, and is adjacent to said fans; And
Controller is with the above-mentioned first electrostatic induction unit electric property coupling;
Wherein, when approaching above-mentioned first electrostatic induction unit of static electrification object, above-mentioned first electrostatic induction unit output influence value is to above-mentioned controller, and above-mentioned controller determines whether reducing the rotating speed of said fans according to above-mentioned influence value.
2. blower module according to claim 1 is characterized in that, wherein, when above-mentioned controller was judged above-mentioned influence value greater than critical value, above-mentioned controller reduced the rotating speed of said fans.
3. blower module according to claim 1 is characterized in that, the said fans module also comprises a plurality of second electrostatic induction unit, and above-mentioned first electrostatic induction unit and above-mentioned these second electrostatic induction unit are around said fans.
4. blower module according to claim 1 is characterized in that, wherein above-mentioned first electrostatic induction unit comprises:
Carrier; And
The electrostatic induction element, be arranged on the above-mentioned carrier and with above-mentioned controller electric property coupling.
5. blower module according to claim 4 is characterized in that, wherein above-mentioned electrostatic induction element comprises two Copper Foils, and above-mentioned two Copper Foils are long strip, and above-mentioned two Copper Foils are parallel to each other.
6. blower module according to claim 5; It is characterized in that; Wherein in the approaching induction region of above-mentioned first electrostatic induction unit of above-mentioned static electrification object, above-mentioned first electrostatic induction unit is responded to the equivalent capacitance value between above-mentioned two Copper Foils, to produce above-mentioned influence value.
7. blower module according to claim 4 is characterized in that, wherein above-mentioned carrier is a flexible printed wiring board.
8. blower module according to claim 1 is characterized in that, wherein when above-mentioned influence value during greater than critical value, above-mentioned controller is closed said fans.
9. a fan system is characterized in that, the said fans system comprises:
Circuit board;
Fan is with foregoing circuit plate electric property coupling;
The first electrostatic induction element is arranged on the foregoing circuit plate, and is adjacent to said fans; And
Controller is with the above-mentioned first electrostatic induction element electric property coupling;
Wherein, when the approaching above-mentioned first electrostatic induction element of static electrification object, above-mentioned first electrostatic induction element output influence value is to above-mentioned controller, and above-mentioned controller determines whether reducing the rotating speed of said fans according to above-mentioned influence value.
10. fan system according to claim 9 is characterized in that, wherein, when above-mentioned controller was judged above-mentioned influence value greater than critical value, above-mentioned controller reduced the rotating speed of said fans.
11. fan system according to claim 9 is characterized in that, the said fans system also comprises a plurality of second electrostatic induction elements, and the above-mentioned first electrostatic induction element and above-mentioned these second electrostatic induction element rings are around said fans.
12. fan system according to claim 9 is characterized in that, the wherein above-mentioned first electrostatic induction element comprises two Copper Foils, and above-mentioned two Copper Foils are long strip, and above-mentioned two Copper Foils are parallel to each other.
13. fan system according to claim 12; It is characterized in that; Wherein in the approaching induction region of the above-mentioned first electrostatic induction element of above-mentioned static electrification object, the equivalent capacitance value between above-mentioned two Copper Foils of the above-mentioned first electrostatic induction element senses is to produce above-mentioned influence value.
14. fan system according to claim 9 is characterized in that, wherein the foregoing circuit plate is a flexible printed wiring board.
15. fan system according to claim 9 is characterized in that, wherein when above-mentioned influence value during greater than critical value, above-mentioned controller is closed said fans.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102138881A CN101672294B (en) | 2008-09-10 | 2008-09-10 | Fan module and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102138881A CN101672294B (en) | 2008-09-10 | 2008-09-10 | Fan module and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101672294A CN101672294A (en) | 2010-03-17 |
| CN101672294B true CN101672294B (en) | 2012-05-30 |
Family
ID=42019655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102138881A Active CN101672294B (en) | 2008-09-10 | 2008-09-10 | Fan module and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101672294B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2455948Y (en) * | 2000-11-28 | 2001-10-24 | 李清福 | Program controlled electric fan with induction chip |
| CN2572065Y (en) * | 2002-08-29 | 2003-09-10 | 建准电机工业股份有限公司 | Radiation fan with temp. sensor |
-
2008
- 2008-09-10 CN CN2008102138881A patent/CN101672294B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2455948Y (en) * | 2000-11-28 | 2001-10-24 | 李清福 | Program controlled electric fan with induction chip |
| CN2572065Y (en) * | 2002-08-29 | 2003-09-10 | 建准电机工业股份有限公司 | Radiation fan with temp. sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101672294A (en) | 2010-03-17 |
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