CN1268629A - Fan forced inducer device - Google Patents
Fan forced inducer device Download PDFInfo
- Publication number
- CN1268629A CN1268629A CN 99104318 CN99104318A CN1268629A CN 1268629 A CN1268629 A CN 1268629A CN 99104318 CN99104318 CN 99104318 CN 99104318 A CN99104318 A CN 99104318A CN 1268629 A CN1268629 A CN 1268629A
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- movable vane
- stator blade
- fan forced
- layer
- fan
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Abstract
Fan pressurizing and flow guiding device includes: external frame, acceptor and flow guiding device, the external frame is at the most external position of the fan and is used for supporting the flow guiding device; the shape of flow guiding device likes fan blade used for increasing the wind pressure and supporting the acceptor, the acceptor is at the central position of fan for accepting fan blade and driving device.
Description
The present invention relates to a kind of fan forced inducer device, finger is used in the fan frame structure of the fan of general computer heat radiation especially.
At present the used radiation fan in PC market can be divided into three kinds of forms: the one, and axial flow fan, the 2nd, centrifugal fan, the 3rd, cross flow fan, maximum the chances are belongs to axial flow fan and use.Consider the above two, axial flow fan is adapted at specific rate (Ns) value＞use in 3 o'clock, centrifugal fan is adapted at using under the condition of Ns value＜1.5, and the heal impedance (windage) of little representative system of Ns value is bigger generally speaking, just representing the design of the axial flow fan difficult realistic demands of applications that heals, though and centrifugal fan has enough blast, can't provide enough air quantity, so we transfer whether to have to the fan frame thinking space of improvement.
In computer heat radiation fan in the past, the structure of fan frame is the fan frame that comes supports fan with bar-shaped, and we can lead to and are called a rib, anatomize the influence of the shape of rib to the fan blast, find that rib can produce windage; Because the fan rotation produces air-flow to the air work done, air-flow then can be upset the formation cyclone the Hou of rib of flowing through, and causes the loss of blast, lowers the usefulness of fan.
Fig. 1 is existing radiation fan, and Fig. 2 is the cross section plan view of rib 102 and flabellum 101 of the fan frame of existing radiation fan.When fan rotates, consider axial velocity Va and tangential velocity Vr, wherein the variation of tangential velocity Vr makes the pressure of wind-engaging side B become P1 by the P0 that awards wind side A, that is, its blast variable quantity is Δ P=P1-P0, the blast variable quantity represents the resistive drag force of fan bigger more greatly, that is the effect of heat radiation better.
But the rib of existing wind-engaging side has eddy current 103 and produces when wind goes out, and this will cause a specific windage to the wind-engaging side, is a loss item for the blast variable quantity therefore, not only can not promote efficient, also can reduce the fan heat energy power of fan.
Stand in the angle of usefulness, the artificer should design better structure with effective utilization, one helps the lifting of product usefulness, how therefore two Jiahui has more the been arranged occasions used of user reduce the windage that rib produces and the tangential velocity that how to be used is our concern person to promote blast.
Purpose of the present invention still in the past defective, is constantly improved, and the windage that rib is produced is reduced to minimum, and is guided utilization to tangential velocity, promotes the blast of fan output.
For reaching above-mentioned purpose, the fan forced inducer device that the present invention proposes is to accept a movable vane, so as to promote the blast of this movable vane when this movable vane rotates, comprises:
One housing;
One placing part is in order to accept this movable vane, to make this movable vane be able to rotate on this placing part; And
One flow guide device is to be connected between this housing and this placing part, so as to promote the blast of this movable vane when this movable vane rotates.
Fan forced inducer device as described, wherein, this housing system is positioned at the outermost of this fan forced inducer device, so as to supporting this flow guide device.
Fan forced inducer device as described, wherein, this flow guide device is a stator blade, this movable vane of shape approximation, and overlook it with section, this flow guide device and this stator blade system are a splayed shape, so as to promoting the blast of this movable vane.
Fan forced inducer device as described, wherein, this placing part system is positioned at the center portion of this fan forced inducer device, so as to accepting this movable vane, makes this movable vane be able to rotate on this placing part.
Fan forced inducer device as described, wherein, this placing part is a groove, so as to accepting one of this movable vane drive unit.
Fan forced inducer device as described, wherein, this drive unit is a motor, rotates so as to driving this movable vane, makes this movable vane produce blast.
Fan forced inducer device as described, wherein, drive this movable vane to the air work done when rotating because of (answering) this motor, during this flow guide device place of airflow passes, the tangent direction blast that increase at this flow guide device more, to avoid air-flow to disturb the loss that causes blast mutually, so as to promoting the efficient of this movable vane.
Fan forced inducer device as described, wherein, this housing is a frame outside the metallic.
Fan forced inducer device as described, wherein, this metal housing is so as to promoting the usefulness of heat radiation.
Fan forced inducer device as described, wherein, this housing is a frame outside the plastic cement system.
Fan forced inducer device as described, wherein, this flow guide device system comprises a first layer stator blade and a second layer stator blade, is to be provided with this movable vane between this first layer stator blade and this second layer stator blade.
Fan forced inducer device as described, wherein, this movable vane system comprises a first layer movable vane and a second layer movable vane, is to be provided with this flow guide device between this a first layer movable vane and the second layer movable vane.
Fan forced inducer device as described, wherein, this flow guide device is a stator blade.
Fan forced inducer device as described, wherein, this movable vane and flow guide device are the form of individual layer to multilayer, and this flow guide device is the multilayer stator blade.
Fan forced inducer device as described, wherein, this movable vane and flow guide device are the form of multilayer to individual layer, and this flow guide device is the individual layer stator blade.
Fan forced inducer device as described, wherein, this fan forced inducer device system is made as a monomer.
Fan forced inducer device as described, wherein, this fan forced inducer device system is formed by assembling.
In addition, the present invention also can be connected in series a kind of fan forced inducer device of serial connection, it is serially connected on the wind path by a plurality of fans and forms, so as to when operating, promoting the blast of this wind path, these fan tool one fan forced inducer devices wherein, this fan forced inducer device then as previously mentioned, certainly flow guide device is then so as to promoting the blast of this wind path when this movable vane rotates.
Below will be described in detail embodiments of the invention by accompanying drawing:
Fig. 1: existing radiation fan;
Fig. 2: the cross-sectional plan view of existing radiation fan fan frame;
Fig. 3: radiation fan of the present invention;
Fig. 4: radiation fan exploded view of the present invention;
Fig. 5: the cross-sectional plan view of radiation fan fan frame of the present invention;
Fig. 6: test curve of the present invention;
Fig. 7: the cross-sectional plan view of three kinds of multiple layer radiation fans fan frame of the present invention;
The stereogram of Fig. 8: Fig. 7;
Fig. 9: a plurality of monomer serial connection of the present invention assembling.
See also shown in Figure 3ly, there is shown the preferred embodiment of radiation fan of the present invention.It mainly comprises a housing 301, a flow guide device 202, a flabellum 201 and a placing part 304.Placing part 304 is in order to the flabellum 201 of accepting movable vane and is hidden in motor 401 (see figure 4)s that are used for being used as drive unit in it, makes this movable vane be able to rotate on this placing part 304.Flow guide device 202 is to be connected between this housing 301 and this placing part 304, uses the blast that improves this movable vane when this movable vane rotates.
See also shown in Figure 4.Placing part 304 is the center portion that is positioned at fan forced inducer device, its external form is a groove, in order to insert a drive unit, with the present invention is example, we are used as drive unit with motor 401 and a flabellum 201 are assembled on the motor 401, when motor rotates, drive flabellum 201, make flabellum produce a blast.Wherein the motor 401 of drive unit is formed movable vane of the present invention with flabellum 201.
The outer flow guide devices of forming by several stator blades 202 that connect of placing part 304, with radial be distributed in placing part 304 around, in order to derive the air-flow of flabellum 201 generations, strengthen the blast of this air-flow, the likeness in form flabellum of the stator blade of this flow guide device 202.
See also shown in Figure 5.With the present invention is the flow guide device 202 of example, if with cross-sectional figure and overlook it, and flow guide device and flabellum 201 position relation each other as can be seen, its position relation is similar to a splayed shape, because it is designed to splayed shape, purpose is to improve the effect of movable vane blast.
In other words, in two dividing potential drops vector Va and Vr that the air-flow that flabellum 201 of the present invention rotates generation is told, not only axial velocity (the dividing potential drop vector of Vertical direction) Va can be passed on out by complete, and tangential velocity (the dividing potential drop vector of substantially horizontal) Vr, also can make it to change its direction because of the design of flow guide device 202, and come along flow guide device output, make the blast of output greatly promote.
As previously mentioned, axial fan is adapted at using under the situation of specific rate (Ns) value＞3, and people are known again
Ns＝nQ0.5Pt-0.75＝nQ0.5(Ps+PV)-0.75
Wherein, n is rotating speed (S-1), and Q is air quantity (M
3/ sec), Pt is total head (Pa), and Ps is a static pressure, and Pv is dynamic pressure.
Consider the white law of making great efforts in addition: P+1/2 ρ V2=const, when flow velocity slows down, pressure can promote, so when flabellum rotates the air work done, the air-flow that movable vane blows out, except axial velocity Va (axial component), still the tangential velocity Vr (component of tangent direction) that flabellum is arranged and driven, under existing situation, the component of tangent direction can slowly be offset because of the loss of air current flow, and in the present invention, for movable vane still can be used under the situation of low Ns, we utilize the stator blade design of the flow guide device 202 that is placed on the fan frame, change this tangential velocity Vr into static pressure (Ps), strengthen the efficient of movable vane.Thus, under the little situation of Ns, also can be and promote total head (Pt) by the lifting of static pressure (Ps).
Secondly, Fig. 6 is the plotted curve of 4000 revolutions per (RPM) test, and the test condition temperature is that room temperature, humidity are 65% relative moisture (RH).Can find out that wherein under identical air-flow, the present invention can provide bigger blast than existing.
The present invention does not limit movable vane 71 and the collocation of stator blade 72 individual layers to individual layer, variable 71 pairs of multilayer stator blades 72 of multilayer movable vane, 72 pairs of multilayer movable vanes 71 of individual layer stator blade or 72 pairs of individual layer stator blades 72 of multilayer stator blade of being designed to.Fig. 7 is for the example of fan frame structure of supercharging of three kinds of multiple layers.Fig. 7 (a) is that a stator blade 72 designs between two movable vanes 71; Fig. 7 (b) is that a movable vane 71 designs between two stator blades 72; Fig. 7 (c) is movable vane 71 stator blades 72 each two layers of intermeshing.Fig. 7 just slightly lifts three examples, and various combinations are then decided the stereogram of Fig. 8 for Fig. 7 (a) because of demand.About the assembling aspect, the present invention is made on the indiscrete fan monomer of same structure, or is made on the fan of many combinations in addition, and Fig. 9 is assembled into the example of a monomer for a plurality of monomer 91 serial connections.
In addition, the fan frame of the tool rib of existing fan also detachably gets off, and adds the fan frame of tool stator blade 72 of the present invention, reaches the effect that increases blast.
Considering of another level, the fan frame also can be selected fabricated metals except general plastic cement system, because the flow guide device design makes heat diffusion area increase, therefore can improve the heat dissipation of motor, and meet desirable heat sink design.
Certainly, the shape of flow guide device of the present invention is not defined as by stator blade 72 to be formed, and all above-mentioned tangential velocities of derivation of can using all belong within the scope of the present invention.
In sum, fan forced inducer device of the present invention is owing to add a flow guide device, thus can reduce unnecessary eddy current loss, and tangential velocity can be derived, and improve the blast of output.In addition, metal fan frame then can improve the usefulness of heat radiation.Secondly, the monomer by a plurality of fans of serial connection also has its effect in the use.
Claims (16)
1. a fan forced inducer device is to accept a movable vane, so as to promote the blast of this movable vane when this movable vane rotates, it is characterized in that: comprise:
One housing;
One placing part is in order to accept this movable vane, to make this movable vane be able to rotate on this placing part; And
One flow guide device is to be connected between this housing and this placing part, so as to promote the blast of this movable vane when this movable vane rotates.
2. fan forced inducer device as claimed in claim 1, it is characterized in that: this housing system is positioned at the outermost of this fan forced inducer device, so as to supporting this flow guide device, and this flow guide device is a stator blade, this movable vane of shape approximation, and overlook it with section, this flow guide device and this stator blade system are a splayed shape, so as to promoting the blast of this movable vane.
3. fan forced inducer device as claimed in claim 1 is characterized in that: this placing part system is positioned at the center portion of this fan forced inducer device, so as to accepting this movable vane, makes this movable vane be able to rotate on this placing part.
4. fan forced inducer device as claimed in claim 3, it is characterized in that: this placing part is a groove, so as to accepting one of this movable vane drive unit, and this drive unit is a motor, rotate so as to driving this movable vane, make this movable vane produce blast, and drive this movable vane to the air work done when rotating because of this motor, during this flow guide device place of airflow passes, the tangent direction tangential velocities that increase at this flow guide device more, to avoid air-flow to disturb the loss that causes blast mutually, so as to promoting the efficient of this movable vane.
5. fan forced inducer device as claimed in claim 1 is characterized in that: this housing is a metallic housing, uses the usefulness that promotes heat radiation.
6. fan forced inducer device as claimed in claim 1 is characterized in that: this housing is a plastic cement system housing.
7. fan forced inducer device as claimed in claim 1 is characterized in that: this flow guide device system comprises a first layer stator blade and a second layer stator blade, is to be provided with this movable vane between this first layer stator blade and this second layer stator blade
8. fan forced inducer device as claimed in claim 1 is characterized in that: this movable vane system comprises a first layer movable vane and a second layer movable vane, be to be provided with this flow guide device between this a first layer movable vane and the second layer movable vane, and this flow guide device is a stator blade.
9. fan forced inducer device as claimed in claim 1 is characterized in that: this movable vane and flow guide device are the form of individual layer to multilayer, and this flow guide device is the multilayer stator blade or is the form of multilayer to individual layer, and this flow guide device is the individual layer stator blade.
10. fan forced inducer device as claimed in claim 1 is characterized in that: this fan forced inducer device system is made as a monomer or is formed by assembling.
11. a fan forced inducer device is that the movable vane that is arranged at this carrier by a housing, a placing part and is formed, and makes this movable vane be able to rotate on this placing part, it is characterized in that:
This fan forced inducer device cording one is arranged at the stator blade between this housing and this placing part, so as to promote blast when this movable vane rotates.
12. fan forced inducer device as claimed in claim 11, it is characterized in that: this this movable vane of stator blade shape approximation, and overlook it with section, this flow guide device and this stator blade system are a splayed shape, so as to promoting blast, wherein rotate the air work done because of this movable vane, during this stator blade of airflow passes, in the tangent direction tangential velocities that increase of this stator blade, disturb the loss that causes blast mutually to avoid air-flow, so as to promoting the efficient of this movable vane more.
13. fan forced inducer device as claimed in claim 11 is characterized in that: this stator blade system comprises a first layer stator blade and a second layer stator blade, is to be provided with this movable vane between this first layer stator blade and this second layer stator blade.
14. fan forced inducer device as claimed in claim 11 is characterized in that: this movable vane system comprises a first layer movable vane and a second layer movable vane, is to be provided with this stator blade between this a first layer movable vane and the second layer movable vane.
15. fan forced inducer device as claimed in claim 11 is characterized in that: this movable vane and this stator blade are individual layer to the form of multilayer or are the form of multilayer to individual layer.
16. fan forced inducer device as claimed in claim 11 is characterized in that: this fan forced inducer device system is made as a monomer or is formed by assembling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99104318A CN1085792C (en) | 1999-03-25 | 1999-03-25 | Fan forced inducer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99104318A CN1085792C (en) | 1999-03-25 | 1999-03-25 | Fan forced inducer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1268629A true CN1268629A (en) | 2000-10-04 |
| CN1085792C CN1085792C (en) | 2002-05-29 |
Family
ID=5271632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99104318A Ceased CN1085792C (en) | 1999-03-25 | 1999-03-25 | Fan forced inducer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1085792C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7014420B2 (en) | 2001-08-01 | 2006-03-21 | Delta Electronics Inc. | Composite heat-dissipating system and its used fan guard with additional supercharging function |
| CN100356070C (en) * | 2004-05-24 | 2007-12-19 | 奇鋐科技股份有限公司 | Fluid control structure of radiating fan |
| CN100371610C (en) * | 2004-07-15 | 2008-02-27 | 台达电子工业股份有限公司 | Heat sink |
| CN100427769C (en) * | 2005-09-16 | 2008-10-22 | 台达电子工业股份有限公司 | Fan frame with flow-guiding stator blade and fan |
| US7497659B2 (en) | 2004-05-19 | 2009-03-03 | Delta Electronics Inc. | Heat-dissipating device |
| CN1940308B (en) * | 2005-09-30 | 2011-09-14 | 台达电子工业股份有限公司 | Fan and its frame |
| CN101776090B (en) * | 2009-12-29 | 2013-02-20 | 林钧浩 | Circular current pressure boosting ventilation gas compressor |
| CN103352864A (en) * | 2013-08-05 | 2013-10-16 | 上虞专用风机有限公司 | Civil fan pressurization mechanism and fan system |
| CN103696987A (en) * | 2012-09-27 | 2014-04-02 | 台达电子工业股份有限公司 | Fan and pressurized fan blade group |
| WO2014067152A1 (en) * | 2012-11-02 | 2014-05-08 | Li Qiwu | Fan |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1580582B (en) * | 2003-08-15 | 2010-08-25 | 奇鋐科技股份有限公司 | Fan mechanism |
| CN101050773B (en) * | 2006-04-03 | 2011-09-21 | 台达电子工业股份有限公司 | Series fan and its flow guide structure |
| CN101201057A (en) * | 2007-06-15 | 2008-06-18 | 秦彪 | Thermal fan for electronic chips |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57186097A (en) * | 1981-05-13 | 1982-11-16 | Hitachi Ltd | Axial-flow fan |
| GB8404023D0 (en) * | 1984-02-15 | 1984-03-21 | Fernhurst Ltd | Fan unit |
-
1999
- 1999-03-25 CN CN99104318A patent/CN1085792C/en not_active Ceased
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7014420B2 (en) | 2001-08-01 | 2006-03-21 | Delta Electronics Inc. | Composite heat-dissipating system and its used fan guard with additional supercharging function |
| US7497659B2 (en) | 2004-05-19 | 2009-03-03 | Delta Electronics Inc. | Heat-dissipating device |
| CN100356070C (en) * | 2004-05-24 | 2007-12-19 | 奇鋐科技股份有限公司 | Fluid control structure of radiating fan |
| CN100371610C (en) * | 2004-07-15 | 2008-02-27 | 台达电子工业股份有限公司 | Heat sink |
| CN100427769C (en) * | 2005-09-16 | 2008-10-22 | 台达电子工业股份有限公司 | Fan frame with flow-guiding stator blade and fan |
| CN1940308B (en) * | 2005-09-30 | 2011-09-14 | 台达电子工业股份有限公司 | Fan and its frame |
| CN101776090B (en) * | 2009-12-29 | 2013-02-20 | 林钧浩 | Circular current pressure boosting ventilation gas compressor |
| CN103696987A (en) * | 2012-09-27 | 2014-04-02 | 台达电子工业股份有限公司 | Fan and pressurized fan blade group |
| CN103696987B (en) * | 2012-09-27 | 2016-05-11 | 台达电子工业股份有限公司 | Fan and supercharging flabellum group thereof |
| WO2014067152A1 (en) * | 2012-11-02 | 2014-05-08 | Li Qiwu | Fan |
| CN103352864A (en) * | 2013-08-05 | 2013-10-16 | 上虞专用风机有限公司 | Civil fan pressurization mechanism and fan system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1085792C (en) | 2002-05-29 |
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Decision date of declaring invalidation: 20080612 Decision number of declaring invalidation: 11573 Granted publication date: 20020529 |