CN1568137A - Heat sink and fan frame structure used therefor - Google Patents
Heat sink and fan frame structure used therefor Download PDFInfo
- Publication number
- CN1568137A CN1568137A CN 03142983 CN03142983A CN1568137A CN 1568137 A CN1568137 A CN 1568137A CN 03142983 CN03142983 CN 03142983 CN 03142983 A CN03142983 A CN 03142983A CN 1568137 A CN1568137 A CN 1568137A
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- CN
- China
- Prior art keywords
- housing
- heat abstractor
- diversion division
- frame structure
- fan frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention supplies a heat sink device and the fan frame structure it used. The heat sink device includes a fan wheel and a fan frame structure. The fan vane includes a hub and flabellum that setting around the hub. The fan frame structure includes a outline border, a diversion section formed on the one side of the outline border and plural static vane that set in the outline border corresponding to the location of the diversion section used to lead the air current through the vane and increase the static pressure of the air current blown by the heat sink device.
Description
Technical field
The invention relates to a kind of heat abstractor and employed fan frame structure thereof, especially about a kind of tube-axial fan and fan frame structure thereof.
Background technology
In the middle of general electronic product (as computer),,, will cause the electronic building brick loss easily and shorten its life-span if continue to be under the condition of high temperature always because the electronic building brick in it time can produce many heat in running.Therefore, break down, radiator fan generally can be set in wherein, so that the heat dissipation that inside produced is extremely extraneous for avoiding electronic building brick.
Radiating fan for computer in the past mainly comprises the impeller 12 of fan frame 11 and with plurality of vanes, and the structure of fan frame 11 is to come pedestal in the supports fan fan frame with bar-shaped rib 13 mostly, shown in Figure 1A and Figure 1B.When fan rotated, the blast that air communication is crossed blade changed the blast P1 of air side B into by the blast P0 of inlet air side A, that is, its blast variable quantity is Δ P=P1-P0, and the blast variable quantity represent resistive drag force of fan bigger more greatly, and also the effect of promptly dispelling the heat is poorer.Anatomize of the influence of the shape of rib, can find that the existence of rib can produce windage the fan blast.Because the fan rotation produces air-flow to the air work done, air-flow then can form cyclone because of producing flow-disturbing after the rib of flowing through, cause the loss of blast, lowers the heat dissipation of fan.
Therefore, how reducing windage that rib produces and the tangential velocity that how to be used air-flow then be purpose and the emphasis that the present invention develops to promote blast.
The present invention is through concentrated test and research and a spirit of working with perseverance in view of the disappearance of known techniques, creates heat abstractor of the present invention and employed fan frame structure thereof eventually.
Summary of the invention
Main purpose of the present invention is to provide a kind of radiator fan and employed fan frame structure thereof, and it is to utilize the stator blade on the fan frame and the variation of area, reduces simultaneously axially and speed radially, significantly to improve the static pressure of this fan.
Another object of the present invention is to provide a kind of heat abstractor and fan frame structure thereof, it can provide the performance of low noise, high air quantity and high blast, and then reaches better radiating effect.
According to conception of the present invention, this heat abstractor comprises an impeller and a fan frame structure.This impeller comprises a wheel hub and a plurality of this wheel hub blade on every side that is located on.This fan frame structure is in order to ccontaining this impeller, and it comprises a housing; One diversion division is formed at the wherein side of this housing; And a plurality of stator blades, with respect to the position of this diversion division and be arranged among this housing, in order to directed flow through the air-flow of blade and promote the static pressure of air-flow that this heat abstractor blows out.
Preferably, the external diameter of this wheel hub can be phased down by an end to the other end of this wheel hub.
Preferably, this diversion division is positioned at the inlet air side or the air side of this fan frame structure.
Preferably, the degree of depth of this diversion division is greater than 1/2nd of this stator blade height.Perhaps, the height of this stator blade is preferably greater than 1/5th of the thickness of this housing.
Wherein, this stator blade is disposed on the interior diversion division position of this housing.
Preferably, this housing is a square, rectangle or circular frame.Its material can be metal or plastics.
In addition, this heat abstractor more comprises a pedestal, by these a plurality of stator blades or rib and be connected with this housing.Preferably, a wherein end of these a plurality of stator blades is connected in this pedestal, and its another free end extends towards this diversion division place.Perhaps, a wherein end of these a plurality of stator blades is connected in this diversion division, and its another free end is towards this base extension.Or these a plurality of stator blades are arranged radially and are connected between the inner surface of this pedestal and this housing.In addition, this housing, this pedestal, this diversion division and this a plurality of stator blades can be made by the one injection molding method.
And this diversion division can be formed at the inlet air side or the air side of this housing.If this diversion division is inlet air side and the air side that is formed at this housing respectively, this two diversion division also can become the mirror image balanced configuration.
Described above comprehensive, heat abstractor provided by the present invention and fan frame structure thereof are to utilize the stator blade on the fan frame and the variation of area, reduce simultaneously axially and speed radially, significantly to improve the static pressure of this fan.In addition, more can provide the performance of low noise, high air quantity and high blast, and then reach better radiating effect.
Description of drawings
Figure 1A is the upward view of traditional heat-dissipating fan.
Figure 1B is the internal cross section figure of the traditional heat-dissipating fan of Figure 1A.
Fig. 2 A is the stereogram of a preferred embodiment of radiator fan of the present invention.
Fig. 2 B is the profile of the radiator fan shown in Fig. 2 A.
Fig. 3 A is the stereogram of the fan frame structure in the radiator fan shown in Fig. 2 A.
Fig. 3 B and Fig. 3 C are that the top view of the fan frame structure shown in Fig. 3 A reaches view down.
Fig. 4 is the schematic diagram that movable vane and stator blade are arranged in the radiator fan of the present invention.
Fig. 5 is the stereogram of another preferred embodiment of fan frame structure of the present invention.
11: fan frame 12: impeller
13: rib 25: wheel hub
26: blade 21: housing
22: pedestal 231: diversion division
24: stator blade 232: another diversion division
251: the inclined-plane
Embodiment
See also Fig. 2 A and Fig. 2 B, it shows first preferred embodiment of radiator fan of the present invention.This radiator fan comprises an impeller and a fan frame structure.This impeller comprises a wheel hub 25 and a plurality of this wheel hub blade 26 on every side that is located on.And this fan frame structure part, then see also Fig. 3 A to Fig. 3 C, it comprises a housing 21, a pedestal 22, a diversion division (or claiming lead angle) 231 and a plurality of stator blade 24, wherein these a plurality of stator blades 24 can be connected between this pedestal 22 and interior diversion division 23 places of this housing, in other words, these a plurality of stator blades are to be arranged radially and to be connected between the inner surface of this pedestal 22 and this housing, in order to directed flow through the air-flow of blade and promote the static pressure of air-flow that this radiator fan blows out.In addition, these a plurality of stator blades can be designed to also wherein that an end only is connected in pedestal, and its another free end extends towards these diversion division 23 places, and vice versa.
Shown in Fig. 2 B, except the air side in this fan frame structure is provided with diversion division 231, also can form another diversion division 232 again in the inlet air side of this fan frame structure.Two diversion divisions that lay respectively at this fan frame structure inlet air side and air side can be the mirror image balanced configuration.In addition, toward the direction (direction of arrow D) of inlet air side, the external diameter of this wheel hub is phased down by an end to the other end of this wheel hub along the air side, and forms inclined-plane 251.
Now, see also Fig. 4, it is in order to illustrate design principle of the present invention, wherein Va represents the speed of axial direction, Vt represents the speed of tangential direction, P0 is the preceding pressure of moving blade of air-flow process impeller, and P1 is the pressure behind the air-flow process moving blade of impeller, and P2 is that air-flow is through the pressure behind the stator blade.Exert sharp equation (BernuliEquation) according to hundred:
P2+0.5×ρ×Va
2＝P1+0.5×ρ(Va
2+Vt
2)
Therefore, the variation delta P=P2-P1=0.5 of pressure * ρ * Vt
2
And the present invention is the design with stator blade, makes Vt level off to 0.In addition, shown in Fig. 2 B, utilize area A among the figure again
1, A
2Variation relation, make static pressure be promoted:
ΔP＝0.5×ρ×[(Q/A
1)
2-(Q/A
2)
2]
Wherein ρ represents atmospheric density, and Q represents throughput.
By above-mentioned mode, promptly fan stator blade design and area change on the frame, and reduce the speed that axially reaches radially simultaneously, significantly to improve the static pressure of this fan.Certainly, for reaching this purpose, the stator blade height and the diversion division degree of depth among the present invention need have a little restriction.Preferably, the degree of depth h1 of this diversion division is at least greater than 1/2nd of this stator blade height h2.Perhaps, the height h2 of this stator blade is at least greater than 1/5th of the thickness H of this housing.In addition, by the variation relation of area A 0, can reach the purpose that reduces flow-disturbing to area A 1.
This housing, this pedestal, this diversion division and this a plurality of stator blades can be made by the one injection molding method, and employed housing can be a square, rectangle or circular frame, circular frame for example shown in Figure 5, the position of diversion division can be radially outward to expand to be stretched.Can be plastics or metal as for its used material, as the aluminium frame.
Described above comprehensive, heat abstractor provided by the present invention and fan frame structure thereof are to utilize the stator blade on the fan frame and the variation of area, reduce simultaneously axially and speed radially, significantly to improve the static pressure of this fan.In addition, more can provide the performance of low noise, high air quantity and high blast, and then reach better radiating effect.
So the present invention must be thought and is to modify right neither taking off as Protector that claim is desired as all by the personage Ren Shi craftsman who is familiar with this skill.
Claims (14)
1. fan frame structure that is used for heat abstractor is characterized in that comprising:
One housing;
One diversion division is formed at the wherein side of this housing at least; And
A plurality of stator blades are with respect to the position of this diversion division and be arranged among this housing, in order to steering current.
2. heat abstractor is characterized in that comprising:
One impeller, it comprises a wheel hub and a plurality of this wheel hub blade on every side that is located on; And
One fan frame structure, in order to ccontaining this impeller, it comprises:
One housing;
One diversion division is formed at the wherein side of this housing; And
A plurality of stator blades, with respect to the position of this diversion division and be arranged among this housing, in order to directed flow through the air-flow of blade and promote the static pressure of air-flow that this heat abstractor blows out.
3. heat abstractor as claimed in claim 2 is characterized in that: the external diameter of this wheel hub is phased down by an end to the other end of this wheel hub.
4. heat abstractor as claimed in claim 2 is characterized in that: this diversion division is positioned at the inlet air side or the air side of this fan frame structure.
5. heat abstractor as claimed in claim 2 is characterized in that: the degree of depth of this diversion division is greater than 1/2nd of this stator blade height.
6. heat abstractor as claimed in claim 2 is characterized in that: the height of this stator blade is greater than 1/5th of the thickness of this housing.
7. heat abstractor as claimed in claim 2 is characterized in that: this stator blade is disposed on the interior diversion division position of this housing.
8. heat abstractor as claimed in claim 2 is characterized in that: this housing is a square, rectangle or circular frame, or is a metal frame or plastic frame.
9. heat abstractor as claimed in claim 2 is characterized in that: it comprises a pedestal, by these a plurality of stator blades or rib and be connected with this housing.
10. heat abstractor as claimed in claim 9 is characterized in that: a wherein end of these a plurality of stator blades is connected in this pedestal or this diversion division, and its another free end is towards this diversion division place or this base extension.
11. heat abstractor as claimed in claim 9 is characterized in that: these a plurality of stator blades are arranged radially and are connected between the inner surface of this pedestal and this housing.
12. heat abstractor as claimed in claim 9 is characterized in that: this housing, this pedestal, this diversion division and this a plurality of stator blades are one ejection formations.
13. heat abstractor as claimed in claim 2 is characterized in that: this diversion division is formed at the inlet air side and the air side of this housing respectively.
14. heat abstractor as claimed in claim 13 is characterized in that: become the mirror image balanced configuration in the inlet air side of this housing and this diversion division of air side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03142983 CN1568137A (en) | 2003-06-11 | 2003-06-11 | Heat sink and fan frame structure used therefor |
| CN2007101490101A CN101119627B (en) | 2003-06-11 | 2003-06-11 | Heat radiator and fan frame structure of the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03142983 CN1568137A (en) | 2003-06-11 | 2003-06-11 | Heat sink and fan frame structure used therefor |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101490101A Division CN101119627B (en) | 2003-06-11 | 2003-06-11 | Heat radiator and fan frame structure of the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1568137A true CN1568137A (en) | 2005-01-19 |
Family
ID=34471231
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03142983 Pending CN1568137A (en) | 2003-06-11 | 2003-06-11 | Heat sink and fan frame structure used therefor |
| CN2007101490101A Expired - Lifetime CN101119627B (en) | 2003-06-11 | 2003-06-11 | Heat radiator and fan frame structure of the same |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101490101A Expired - Lifetime CN101119627B (en) | 2003-06-11 | 2003-06-11 | Heat radiator and fan frame structure of the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN1568137A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008154793A1 (en) * | 2007-06-15 | 2008-12-24 | Biao Qin | An elecronic chip heat disspition fan |
| CN100449157C (en) * | 2006-01-16 | 2009-01-07 | 台达电子工业股份有限公司 | Blower fan and fan frame |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212130841U (en) * | 2020-01-16 | 2020-12-11 | 北京比特大陆科技有限公司 | Air guide sleeve and server with same |
| TWI752554B (en) * | 2020-07-15 | 2022-01-11 | 周文三 | Air inflator device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1181263C (en) * | 2001-08-01 | 2004-12-22 | 建准电机工业股份有限公司 | Boosting structure of fan |
-
2003
- 2003-06-11 CN CN 03142983 patent/CN1568137A/en active Pending
- 2003-06-11 CN CN2007101490101A patent/CN101119627B/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449157C (en) * | 2006-01-16 | 2009-01-07 | 台达电子工业股份有限公司 | Blower fan and fan frame |
| WO2008154793A1 (en) * | 2007-06-15 | 2008-12-24 | Biao Qin | An elecronic chip heat disspition fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101119627A (en) | 2008-02-06 |
| CN101119627B (en) | 2012-07-18 |
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