CN101463832A - Cooling fan and its fan blades - Google Patents
Cooling fan and its fan blades Download PDFInfo
- Publication number
- CN101463832A CN101463832A CNA2007101252866A CN200710125286A CN101463832A CN 101463832 A CN101463832 A CN 101463832A CN A2007101252866 A CNA2007101252866 A CN A2007101252866A CN 200710125286 A CN200710125286 A CN 200710125286A CN 101463832 A CN101463832 A CN 101463832A
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- windward side
- lee face
- flabellum
- radiation fan
- plane type
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Abstract
The invention relates to a radiator fan, comprising a base, an upper cover, rotors and fan blades, wherein, the base is covered by the upper cover, and the rotors and the fan blades are positioned between the base and the upper cover; the fan blades comprise wheel hubs and a plurality of blades radially distributed on the circumstances of the wheel hubs, and each blade is provided with a windward side and a leeward side opposite to the windward side; the windward side is provided with a procline surface or a plane surface, the leeward side is provided with a plane surface or a retroversion surface, and the windward side and the leeward side are of different types; and the radiator fan utilizes the different characteristics of the windward side and the leeward side to generate higher wind rate and lower noise during running.
Description
Technical field
The present invention relates to a kind of radiation fan, refer to a kind of flabellum of radiation fan especially.
Background technique
Along with developing rapidly of computer industry, CPU pursues high-speedization, and the heat dissipation problem that multifunction and miniaturization are derived is more and more serious, and this is more outstanding in the narrow and small electronic equipment in inner spaces such as notebook computer.If the heats that electronic component produced such as CPU in the notebook computer can't be distributed timely and effectively, will greatly influence the service behaviour of electronic component, also can reduce the working life of electronic component simultaneously, therefore must dispel the heat to electronic component.
In computer, the normal heat radiation module of being made up of thermal conductor, heat pipe, radiating fin and radiation fan that adopts is to electronic element radiating at present.Thermal conductor is attached on the electronic component, and thermal conductor is connected by heat pipe with radiating fin, and the air-flow that radiation fan produces brushes radiating fin and distributes with heat the most at last with radiating fin generation heat exchange.Therefore, radiation fan plays a part very important in the heat radiation module.
The air quantity size of radiation fan is to increasing the radiating effect tool considerable influence of heat radiation module; the method of existing increase radiation fan air quantity generally comprises the rotating speed of increase blade dimensions or raising radiation fan etc.; yet the increase of blade dimensions and rotating speed usually can cause the increase of radiation fan noise.
Summary of the invention
Given this, be necessary to provide a kind of have big the air quantity radiation fan and the flabellum thereof of the less fan noise of tool simultaneously.
A kind of flabellum, comprise wheel hub and several blades that radially distribute around wheel hub, described blade has a windward side and a lee face relative with described windward side, described windward side is the wherein a kind of of FC surface and plane type surface, what described lee face was plane type surface with the BI surface is wherein a kind of, and described windward side and lee face are dissimilar surfaces.
A kind of radiation fan, comprise a base, be covered on loam cake and stator between base and loam cake and flabellum on the base, described flabellum comprises wheel hub and radially distributes in wheel hub several blades on every side, described blade has a windward side and a lee face relative with described windward side, described windward side is the wherein a kind of of FC surface and plane type surface, what described lee face was plane type surface with the BI surface is wherein a kind of, and described windward side and lee face are dissimilar surfaces.
Described radiation fan has different windward sides and lee face, utilizes the different qualities of windward side and lee face, makes it have less noise in the running when can producing big air quantity.
Description of drawings
Fig. 1 is the perspective exploded view of radiation fan one preferred embodiment of the present invention.
Fig. 2 is the plan view of flabellum among Fig. 1.
Fig. 3 is the plan view of another preferred embodiment of flabellum of the present invention.
Fig. 4 is the plan view of the another preferred embodiment of flabellum of the present invention.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.
As shown in Figure 1, described radiation fan 10 comprises a base 12, is covered on loam cake 14 and stator between base 12 and loam cake 14 (figure does not show) and flabellum 16 on the base 12.
Described flabellum 16 comprises a wheel hub 162 and by several blades 164 of the outside radial extension of wheel hub 162 peripheries.Described flabellum 16 is contained in the containing space of base 12 and loam cake 14 formation, rotation in the counterclockwise direction.
See also Fig. 2, described blade 164 has a windward side 164a and a lee face 164b relative with windward side 164a.
The windward side 164a of described blade 164 is a FC surface, and its bearing of trend is towards the sense of rotation of flabellum 16, thereby has bigger wind sweeping area when making described flabellum 16 runnings and can produce bigger air quantity.
The lee face 164b of described blade 164 is a BI surface, its bearing of trend is along the sense of rotation of flabellum 16, thereby make lee face 164b can separate both sides inside and outside the free end of lee face 164b preferably in the operation process of radiation fan 10 air promptly near a side of wheel hub 162 with away from the air of a side of wheel hub 162, have less noise when making described radiation fan 10 runnings.
Therefore the blade 164 of the described flabellum 16 of present embodiment, makes in the operation process of this radiation fan 10 owing to have FC windward side 164a and BI lee face 164b simultaneously, can also have less noise when producing big air quantity.
Figure 3 shows that the plan view of described flabellum 26 another preferred embodiments.In the present embodiment, the windward side 264a of described blade 264 is a plane, and the lee face 264b of described blade 264 is a BI surface.The characteristic of sweeping wind characteristic and separation of air on plane type surface is between FC surface and BI surface, make described radiation fan 10 in operation process, can utilize the characteristic of the separation of air of the characteristic of sweeping wind characteristic and separation of air of plane type windward side 264a and BI lee face 264b, make in the operation process of this radiation fan 10, when producing big air quantity, also have less noise.
Figure 4 shows that the plan view of described flabellum 36 another preferred embodiments.In the present embodiment, the windward side 364a of described blade 364 is a FC surface, the lee face 364b of described blade 364 is a plane, make described radiation fan 10 in operation process, the characteristic of sweeping wind characteristic and separation of air of sweeping wind characteristic and plane type lee face 364b of FC windward side 364a can be utilized, bigger air quantity and less noise can be produced simultaneously when making these flabellum 36 runnings.
The described radiation fan 10 of above-mentioned three embodiments, flabellum 16,26,36 has dissimilar windward side 164a, 264a, 364a and lee face 164b, 264b, 364b, utilize windward side 164a, 264a, 364a and lee face 164b, the 264b of flabellum 16,26,36, the different qualities of 364b, make it when can producing big air quantity, have less noise in the running.
Claims (8)
1. flabellum, comprise wheel hub and several blades that radially distribute around wheel hub, described blade has a windward side and a lee face relative with described windward side, it is characterized in that, described windward side is the wherein a kind of of FC surface and plane type surface, what described lee face was plane type surface with the BI surface is wherein a kind of, and described windward side and lee face are dissimilar surfaces.
2. flabellum according to claim 1 is characterized in that, described windward side is the FC surface, and described lee face is the BI surface.
3. flabellum according to claim 1 is characterized in that, described windward side is the plane type surface, and described lee face is the BI surface.
4. flabellum according to claim 1 is characterized in that, described windward side is the FC surface, and described lee face is the plane type surface.
5. radiation fan, comprise a base, be covered on loam cake and stator between base and loam cake and flabellum on the base, described flabellum comprises wheel hub and radially distributes in wheel hub several blades on every side, described blade has a windward side and a lee face relative with described windward side, it is characterized in that, described windward side is the wherein a kind of of FC surface and plane type surface, what described lee face was plane type surface with the BI surface is wherein a kind of, and described windward side and lee face are dissimilar surfaces.
6. radiation fan according to claim 1 is characterized in that, described windward side is the FC surface, and described lee face is the BI surface.
7. radiation fan according to claim 1 is characterized in that, described windward side is the plane type surface, and described lee face is the BI surface.
8. radiation fan according to claim 1 is characterized in that, described windward side is the FC surface, and described lee face is the plane type surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710125286A CN101463832B (en) | 2007-12-21 | 2007-12-21 | Cooling fan and its fan blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710125286A CN101463832B (en) | 2007-12-21 | 2007-12-21 | Cooling fan and its fan blades |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101463832A true CN101463832A (en) | 2009-06-24 |
| CN101463832B CN101463832B (en) | 2012-09-19 |
Family
ID=40804558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710125286A Expired - Fee Related CN101463832B (en) | 2007-12-21 | 2007-12-21 | Cooling fan and its fan blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101463832B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939390A (en) * | 2013-01-18 | 2014-07-23 | 昆山新力精密五金有限公司 | Heat dissipation fan blade for laptop |
| CN113775542A (en) * | 2020-06-10 | 2021-12-10 | 英业达科技有限公司 | Fan impeller |
| US11339796B2 (en) | 2018-12-07 | 2022-05-24 | Acer Incorporated | Fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3483447B2 (en) * | 1998-01-08 | 2004-01-06 | 松下電器産業株式会社 | Blower |
-
2007
- 2007-12-21 CN CN200710125286A patent/CN101463832B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939390A (en) * | 2013-01-18 | 2014-07-23 | 昆山新力精密五金有限公司 | Heat dissipation fan blade for laptop |
| CN103939390B (en) * | 2013-01-18 | 2016-12-28 | 昆山新力精密五金有限公司 | Notebook radiating vane |
| US11339796B2 (en) | 2018-12-07 | 2022-05-24 | Acer Incorporated | Fan |
| CN113775542A (en) * | 2020-06-10 | 2021-12-10 | 英业达科技有限公司 | Fan impeller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101463832B (en) | 2012-09-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20141221 |
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| EXPY | Termination of patent right or utility model |