CN100453824C - Radiating fan - Google Patents
Radiating fan Download PDFInfo
- Publication number
- CN100453824C CN100453824C CNB2004100687782A CN200410068778A CN100453824C CN 100453824 C CN100453824 C CN 100453824C CN B2004100687782 A CNB2004100687782 A CN B2004100687782A CN 200410068778 A CN200410068778 A CN 200410068778A CN 100453824 C CN100453824 C CN 100453824C
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- radiation fan
- slanted angle
- stator blade
- flabellum
- wheel hub
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Abstract
The present invention provides a heat radiating fan provided with boost type blades. The heat radiating fan comprises an outer frame, a blade wheel and a base, wherein the blade wheel is provided with a wheel hub and a plurality of blades which are circularly arranged at the circumference of the wheel hub, the base is arranged in the outer frame, the blade wheel is supported on the base, and one end edge of the blade and a horizontal line which is perpendicular to a shaft line of the heat radiating fan form a first sloping included angle.
Description
Technical field
The present invention relates to a kind of radiation fan, relate in particular to a kind of axial-flow type radiator fan.
Background technique
In the middle of general electronic product (as computer),,, will cause the electrical assembly loss easily and shorten its life-span if continue to be under the condition of high temperature always because the electrical assembly in it time can produce many heat in running.Therefore, break down, radiation fan generally can be set in wherein, so that the heat dissipation that inside produced is extremely extraneous for avoiding electrical assembly.
See also Fig. 1, it is a kind of tradition axial fan commonly used, and this axial fan has a shell block 10, a motor 11 and an impeller 12.This shell block 10 has a base 14, and in order to accept this motor 11, the air opening end of this shell block 10 is provided with the steady arm 13 of a plurality of strips.When this impeller 12 of this motor driven rotated, the blade 121 on it can drive air-flow and blow out towards the air opening end of shell block 10.Because it is horizontal versions that existing Blade Design makes the blade root edge, and it is the fastest at flow velocity near blade end, more will have the more air quantity near edge place, blade end flows to and flows out, therefore when this air-flow contacts with this steady arm 13, can produce mixed flow and very big noise, this is that the distance h of both apart is short owing to the collocation of blade 121 with the steady arm 13 of horizontal versions, when air communication is crossed wherein, can inspire very big level of noise in a short period of time and produce relatively poor sound quality.
Therefore, the present invention with research and in line with the spirit of working with perseverance, develops " radiation fan " of the present invention through concentrated test in view of the defective of prior art finally.It below is brief description of the present invention.
Summary of the invention
Main purpose of the present invention is to provide a kind of radiation fan, can significantly reduce the flow-disturbing noise and can improve blast and air quantity.
Another object of the present invention is to provide a kind of radiation fan, raise up type flabellum design of its utilization is to improve noise, reduce the flabellum load and to improve its integral heat sink efficient.
According to a conception of the present invention, this radiation fan comprises a housing; One impeller has a wheel hub and a plurality of this wheel hub flabellum on every side that is located on; And a pedestal, be arranged in this housing, in order to this impeller of bearing thereon, wherein an ora terminalis of this flabellum is first slanted angle that raises up with horizontal line perpendicular to this radiation fan axis.Wherein the inner side edge height of this flabellum can be lower than the apical side height of this wheel hub.
Preferably, another ora terminalis of this flabellum and this horizontal line are second slanted angle that raises up.The angular range of this first or second slanted angle is preferably 3 °～45 °.Wherein, this first slanted angle can greater than, be equal to or less than this second slanted angle.
In addition, this radiation fan also comprises an iron-clad, is socketed in this wheel hub, and it has a plurality of holes.The top periphery of this iron-clad has step structure, and the top periphery of this wheel hub has inclined-plane or curved surface structure.This radiation fan also comprises a drive unit, is arranged in this iron-clad or this wheel hub, in order to drive this wheel rotation, to produce air-flow.
In addition, radiation fan more comprises a plurality of struts or stator blade, and between this pedestal and this housing, wherein an ora terminalis of these a plurality of struts or stator blade and this horizontal line are one the 3rd slanted angle, and its preferable range is 3 °～45 °.Or another ora terminalis of these a plurality of struts or stator blade and this horizontal line are one the 4th slanted angle, and its preferable range is 3 °～45 °, wherein the 3rd slanted angle can greater than, be equal to or less than the 4th slanted angle.These a plurality of struts or stator blade are positioned at the air opening end or the wind inlet end of this radiation fan.Wherein, a wherein end of these a plurality of struts or stator blade is connected in this pedestal, and its another free end extends towards this housing madial wall direction; Perhaps, a wherein end of these a plurality of struts or stator blade is connected in this housing madial wall, and its another free end extends towards this pedestal direction; Or, a wherein end of a part of these a plurality of struts or stator blade is connected in this housing madial wall and another free end extends towards this pedestal direction, and an end of another part is connected in this pedestal and another free end extends towards this housing madial wall direction.Preferably, the changes of section to this housing madial wall direction is gradual and dwindles or increase from this pedestal for this strut or stator blade, or is the shape of inner concave shape or male type.The number of this strut or stator blade is preferably less than the number of this flabellum, and it can be the structure of strip, arc shape, ladder type or aerofoil profile.
Moreover this housing has an expanding part, is positioned at the air opening end or the wind inlet end of this radiation fan, and to increase its turnover air quantity, the shape of this housing can be a square, rectangular or round structure.Wherein these a plurality of struts or stator blade can be connected between this expanding part and this pedestal.Preferably, this housing, this pedestal and this a plurality of struts or stator blade integrated injection molding, and its material is plastics, metal or similar material.
The detailed description of the present invention by doing by following drawings and Examples obtains more deep understanding.
Description of drawings
Fig. 1 is the sectional drawing of a kind of tradition axial fan commonly used.
Fig. 2 is the sectional drawing of first preferred embodiment of radiation fan of the present invention.
Fig. 3 is the sectional drawing of second preferred embodiment of radiation fan of the present invention.
Fig. 4 is the sectional drawing of the 3rd preferred embodiment of radiation fan of the present invention.
Fig. 5 A is the sectional drawing of the 4th preferred embodiment of radiation fan of the present invention.
Fig. 5 B is the three-dimensional exploded view of the 4th preferred embodiment of radiation fan of the present invention.
Fig. 6 is the sectional drawing of the 5th preferred embodiment of radiation fan of the present invention.
Fig. 7 is blast and the air quantity characteristic comparison diagram that radiation fan of the present invention and tradition are used axial fan always.
Description of reference numerals
10: shell block
11: motor
12: impeller
121: blade
13: steady arm
14: base
20: housing
20a, 20b: expanding part
20c: column part
21: pedestal
22: impeller
221: wheel hub
221a: inclined-plane or arc shape structure
221b: radiation hole
221c: axial component
222: flabellum
23: strut or stator blade
24: drive unit
25: iron-clad
25a: hole
25b: step structure
A: axis
H: horizontal line
Embodiment
At first, see also Fig. 2, it shows first preferred embodiment of radiation fan of the present invention.This radiation fan comprises a housing 20; One pedestal 21 is arranged in this housing 20; And a plurality of struts or stator blade 23, being arranged between this pedestal 21 and this housing 20, these a plurality of struts or stator blade 23 are positioned at the air-out oral-lateral of this radiation fan.Certainly, this strut or stator blade 23 also can be arranged at the inlet air oral-lateral of this radiation fan, or are positioned at the inlet air oral-lateral and the air-out oral-lateral of this radiation fan simultaneously.This radiation fan has an impeller 22, have a wheel hub 221 and a plurality of flabellum 222 that is located on around this wheel hub, and the top periphery of this wheel hub 221 is an inclined-plane 221a, flows to this flabellum 222 more swimmingly to guide more air-flow.The shape of this housing is except being illustrated in figure 2 as square structure, and it can also be rectangular or round structure.This housing 20, this pedestal 21 and this a plurality of struts or stator blade 23 can the integrated injection molding mode be made, and its material that uses can be plastics, metal or similar material.
This radiation fan also comprises an iron-clad 25, and this wheel hub 221 is socketed on outside this iron-clad 25, and the top of this iron-clad has a plurality of hole 25a, and the heat energy that this radiation fan running is produced dissipates to the external world enough rapidly.The top periphery of this iron-clad also has step structure 25b, corresponding to the inclined-plane or the arc shape structure 221a of this wheel hub 221.This radiation fan also comprises a drive unit 24, is arranged in this iron-clad 25 or the wheel hub 221, rotates in order to drive this impeller 22, to produce air-flow.
This housing 20 has an expanding part 20a, is positioned at the air opening end of this radiation fan, also has another expanding part 20b, is positioned at the wind inlet end of this radiation fan, and reaching swimmingly with the turnover air quantity that increases this radiation fan, steering flow flows to this impeller.These a plurality of struts or stator blade 23 are connected between this expanding part 20a and this pedestal 21, and the set-up mode of these a plurality of struts or stator blade 23 is not limited to this, and it can be changed design according to practical application.For instance, a wherein end of these a plurality of struts or stator blade 23 is connected in this pedestal 21, and its another free end extends towards this expanding part 20a direction; Or a wherein end of these a plurality of struts or stator blade 23 is connected in this expanding part 20a, and its another free end extends towards these pedestal 21 directions; More or, a wherein end of a part of these a plurality of struts or stator blade 23 is connected in this expanding part 20a and another free end extends towards this pedestal 21 directions, and an end of another part is connected in this pedestal 21 and another free end extends towards this expanding part 20a direction.In addition, the sectional shape to this expanding part direction can be for outside consistent the fixing from this pedestal for this strut or stator blade 23, the changes of section to this expanding part direction also can be gradual and dwindles or increase from this pedestal for this strut or stator blade 23, and perhaps this strut or stator blade are the shape of inner concave shape or male type.
As shown in Figure 2, this flabellum 222 is in being one skewed near the top edge of inlet air oral-lateral, the inner side edge height of this flabellum 222 is lower than the apical side height of this wheel hub 221, the top edge of this flabellum is θ 1 with slanted angle perpendicular to the horizontal line H of this radiation fan axis A, and its preferred angular range can be 3 °-45 °.Because the top edge of flabellum becomes a slanted angle θ 1 with this horizontal line H, make flabellum many more work done areas arranged the closer to wheel hub 221 places, to help to make air-flow to be uniformly distributed in whole flabellum, can slow down air-flow and too concentrate on the flabellum top edge, make the flow field more smooth and easy, with the noise of avoiding having some setbacks and being caused because of air-flow.
Now see also Fig. 3, it shows second preferred embodiment of radiation fan of the present invention.Its structure and above-mentioned first preferred embodiment are similar, both difference is in the end face of the top edge of this flabellum and this wheel hub contour, promptly be positioned on the same horizontal plane, and this flabellum 222 is skewed in be one near the bottom edge of air-out oral-lateral, the slanted angle of the bottom edge of this flabellum and this horizontal line H is θ 2, and its preferred angular range can be 3 °-45 °.The bottom edge of this flabellum can reduce the merit that flabellum is done in radial direction air in the bottom, to promote its radiating efficiency for the type design that raises up.In addition, this flabellum bottom becomes a slanted angle θ 2 with this horizontal line, can also disperse air-flow and the time that strut or stator blade 23 contact, and uses the reduction level of noise, and promotes the quality of sound.
See also Fig. 4 more in addition, it shows the 3rd preferred embodiment of radiation fan of the present invention.Its structure and above-mentioned first preferred embodiment are similar, it is θ 1 in the top edge near the inlet air oral-lateral with first slanted angle of this horizontal line H except having as this flabellum 222 of above-mentioned first preferred embodiment that both difference is in it, and this flabellum 222 is θ 2 in the bottom edge of close air-out oral-lateral and second slanted angle of this horizontal line H.Wherein, this first slanted angle θ 1 can greater than, be equal to or less than this second slanted angle θ 2.
In addition, see also Fig. 5 A and Fig. 5 B, it shows the 4th preferred embodiment of radiation fan of the present invention.Its structure and above-mentioned the 3rd preferred embodiment are similar, it is θ 1 and this flabellum 222 is the θ 2 in the bottom edge of close air-out oral-lateral and second slanted angle of this horizontal line H except this flabellum 222 in first slanted angle near the top edge of inlet air oral-lateral and this horizontal line H that both difference is in it, these a plurality of struts or stator blade 23 also are the type design that raises up, the 3rd slanted angle of the top edge of these a plurality of struts or stator blade 23 and this horizontal line H is outside the θ 3, and the 4th slanted angle of the bottom edge of these a plurality of struts or stator blade 23 and this horizontal line H is θ 4, can disperse to arrive via the air-flow that flabellum 222 is brought the time of this strut or stator blade 23.The preferable range of the 3rd or the 4th slanted angle is 3 °～45 °, wherein the 3rd slanted angle can greater than, be equal to or less than the 4th slanted angle.The connection set-up mode of these a plurality of struts or stator blade 23 can an end be connected in pedestal and the other end only is connected in the inwall of the column part 20c of this housing; Perhaps, shown in Fig. 5 A or Fig. 5 B, the one end is connected in this pedestal and the other end is connected in the inwall of column part 20c of this housing and the madial wall of this expanding part 20a simultaneously.Certainly, this strut or stator blade 23 are not limited to its top edge and bottom edge is skewed simultaneously, and when practical application, also can only selecting wherein, an ora terminalis be skewed getting final product.In addition, shown in Fig. 5 B, the shape of this strut or stator blade 23 can be strip, arc shape, ladder type or airfoil structure, number as for this strut or stator blade 23 can be less than the number of this flabellum, and its flabellum 222 can be the arc shape structure, and the scope with a tilt angle is 15 °～60 ° a angle.
In addition, see also Fig. 6, it shows the 5th preferred embodiment of radiation fan of the present invention, its structure is roughly similar with above-mentioned the 3rd preferred embodiment as shown in Figure 4, both difference is in this iron-clad 25 is inserted within this wheel hub 221 and outside not being exposed to, and this wheel hub 221 can be divided into three parts--have a plurality of radiation hole 221b in its summit portion, the heat that this fan internal operations is produced can dissipate to the external world via these a plurality of radiation hole 221b again via the hole 25a on the iron-clad; In its peripheral part, top is an arc shape structure 221a (being so-called R angle); Its axial component 221c then is connected with flabellum 222, the top side inner edge of this flabellum is connected in this axial component 221c and this arc shape structure 221a intersection, it can reduce the generation of noise, and the bottom side inner edge of this flabellum can reduce the generation of burr a little more than the bottom of this axial component 221c.And the second slanted angle θ 2 of the bottom edge of the first slanted angle θ 1 of the top edge of this flabellum 222 and this horizontal line H and this flabellum 222 and this horizontal line H is unequal.
At last, see also Fig. 7, it is a radiation fan of the present invention and the air quantity and the blast characteristic comparison diagram of tradition axial fan (promptly shown in Figure 1) commonly used, thus figure can know show flabellum that utilization of the present invention is the type of raising up can improve blast and air quantity with, also can significantly reduce the noise of flow-disturbing.For example, be the identical characteristics of 7500rpm at same rotating speed, the axial fan that the fan with the type flabellum that raises up of the present invention is used always compared to tradition reduces the noise more than the 5dBA at least.
Certainly, those skilled in the art can make some improvement or variation to the present invention, and are general in the scope that claims of the present invention defined but these improvement or variation are all contained.
Claims (28)
1. radiation fan, it comprises:
One housing;
One impeller, have a wheel hub and a plurality of described wheel hub flabellum on every side that is located on, the peripheral part, top of wherein said wheel hub has an inclined-plane or curved surface, and described wheel hub also has an axial component, and the top inner side edge of described flabellum is connected in the intersection of described inclined-plane or curved surface and described axial component; And
One pedestal, be arranged in the described housing, in order to the described impeller of bearing thereon, the top edge of wherein said flabellum be first slanted angle that raises up perpendicular to the horizontal line of described radiation fan axis, the bottom edge of described flabellum be second slanted angle that raises up perpendicular to the horizontal line of described radiation fan axis, described first slanted angle and described second slanted angle are unequal.
2. radiation fan as claimed in claim 1, the scope of wherein said first slanted angle or described second slanted angle are 3 °～45 ° angle.
3. radiation fan as claimed in claim 1, the bottom inner side edge of wherein said flabellum is a little more than the bottom of described axial component.
4. radiation fan as claimed in claim 1, the end face of wherein said wheel hub has a plurality of radiation holes, described radiation fan also comprises an iron-clad, be socketed in the described wheel hub, it has a plurality of holes, the top periphery of wherein said iron-clad has step structure, corresponding to the inclined-plane of described wheel hub or the position of curved surface.
5. radiation fan as claimed in claim 1, wherein also comprise a plurality of struts or stator blade, between described pedestal and described housing, the top edge of wherein said a plurality of strut or stator blade or bottom edge and described horizontal line are a slanted angle, the slanted angle of the top edge of described a plurality of strut or stator blade can greater than, be equal to or less than the slanted angle of the bottom edge of described a plurality of strut or stator blade, described a plurality of struts or stator blade are positioned at the air opening end or the wind inlet end of described radiation fan.
6. radiation fan, it comprises:
One housing;
One impeller has a wheel hub and a plurality of described wheel hub flabellum on every side that is located on; And
One pedestal, be arranged in the described housing, in order to the described impeller of bearing thereon, wherein near and be away from described radiation fan the wind inlet end described flabellum ora terminalis be a slanted angle that raises up perpendicular to the horizontal line of described radiation fan axis, the scope of described slanted angle is between 3 °～45 degree.
7. radiation fan as claimed in claim 6, wherein be close to described radiation fan wind inlet end described flabellum ora terminalis slanted angle greater than, be equal to or less than slanted angle away from the described flabellum ora terminalis of described radiation fan wind inlet end.
8. radiation fan, it comprises:
One housing;
One impeller has a wheel hub and a plurality of described wheel hub flabellum on every side that is located on; And
One pedestal, be arranged in the described housing, in order to the described impeller of bearing thereon, an ora terminalis of wherein said flabellum be first slanted angle that raises up perpendicular to the horizontal line of described radiation fan axis, another ora terminalis of described flabellum and described horizontal line are second slanted angle that raises up.
9. radiation fan as claimed in claim 8, the inner side edge height of wherein said flabellum is lower than the apical side height of described wheel hub.
10. radiation fan as claimed in claim 8, wherein said first slanted angle are 3 °～45 °.
11. radiation fan as claimed in claim 8, wherein said second slanted angle are 3 °～45 °.
12. radiation fan as claimed in claim 8, wherein said first slanted angle greater than, be equal to or less than described second slanted angle.
13. radiation fan as claimed in claim 8 wherein also comprises an iron-clad, is socketed in the described wheel hub, it has a plurality of holes.
14. radiation fan as claimed in claim 13, the top periphery of wherein said iron-clad has step structure.
15., wherein also comprise a drive unit, be arranged in described iron-clad or the described wheel hub, in order to drive described wheel rotation, to produce air-flow as claim 8 or 13 described radiation fans.
16. radiation fan as claimed in claim 8, the top periphery of wherein said wheel hub has inclined-plane or curved surface structure.
17. radiation fan as claimed in claim 8 wherein also comprises a plurality of struts or stator blade, between described pedestal and described housing, and described a plurality of strut or stator blade are positioned at the air opening end or the wind inlet end of described radiation fan.
18. radiation fan as claimed in claim 17, an ora terminalis of wherein said a plurality of struts or stator blade and described horizontal line are one the 3rd slanted angle.
19. radiation fan as claimed in claim 18, wherein said the 3rd slanted angle are 3 °～45 °.
20. radiation fan as claimed in claim 18, another ora terminalis of wherein said a plurality of struts or stator blade and described horizontal line are one the 4th slanted angle.
21. radiation fan as claimed in claim 20, wherein said the 4th slanted angle are 3 °～45 °.
22. radiation fan as claimed in claim 20, wherein said the 3rd slanted angle greater than, be equal to or less than described the 4th slanted angle.
23. radiation fan as claimed in claim 17, a wherein end of wherein said a plurality of struts or stator blade is connected in described pedestal, and its another free end extends towards described housing madial wall direction; A wherein end of perhaps described a plurality of struts or stator blade is connected in described housing madial wall, and its another free end extends towards described pedestal direction; Or a wherein end of a part of described a plurality of strut or stator blade is connected in described housing madial wall and another free end extends towards described pedestal direction, and an end of another part is connected in described pedestal and another free end extends towards described housing madial wall direction.
Dwindle or increase 24. radiation fan as claimed in claim 17, wherein said strut or stator blade are gradual from described pedestal to the changes of section of described housing madial wall direction, or be the shape of inner concave shape or male type.
25. radiation fan as claimed in claim 17, wherein said housing, described pedestal and described a plurality of strut or stator blade integrated injection molding, the material of wherein said housing, described pedestal and described a plurality of strut or stator blade is plastics, metal.
26. radiation fan as claimed in claim 17, the number of wherein said strut or stator blade is less than the number of described flabellum, described a plurality of strut or stator blade can be the structure of strip, arc shape, ladder type or aerofoil profile, and described housing is a square, rectangular or round structure.
27. radiation fan as claimed in claim 8, wherein said flabellum are an arc shape structure, have a tilt angle, its scope is between 15 °～60 ° angles.
28. radiation fan as claimed in claim 8, wherein said housing has an expanding part, is positioned at the air opening end or the wind inlet end of described radiation fan, to increase its turnover air quantity, described radiation fan also comprises a plurality of struts or stator blade, between described pedestal and described expanding part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100687782A CN100453824C (en) | 2004-09-06 | 2004-09-06 | Radiating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100687782A CN100453824C (en) | 2004-09-06 | 2004-09-06 | Radiating fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1746515A CN1746515A (en) | 2006-03-15 |
| CN100453824C true CN100453824C (en) | 2009-01-21 |
Family
ID=36166177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100687782A Ceased CN100453824C (en) | 2004-09-06 | 2004-09-06 | Radiating fan |
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| Country | Link |
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| CN (1) | CN100453824C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555891B (en) * | 2008-04-10 | 2012-03-14 | 台达电子工业股份有限公司 | Fan and fan frame |
| CN101825114A (en) * | 2009-03-06 | 2010-09-08 | 韩玮 | Axial flow fan capable of reducing energy consumption and noise |
| CN104214139B (en) * | 2013-05-30 | 2016-12-28 | 台达电子工业股份有限公司 | Fan |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3727593A (en) * | 1970-12-19 | 1973-04-17 | Daimler Benz Ag | Installation for cooling internal combustion engines |
| FR2386706A1 (en) * | 1977-04-05 | 1978-11-03 | Neu Ets | Axial flow ventilator fan - has motor mounted by flat radial vanes with leading edges at 45 degrees to fan axis to reduce swirl |
| US5484013A (en) * | 1993-05-27 | 1996-01-16 | Nippon Densan Corporation | Heat sink fan |
| US6045327A (en) * | 1998-05-04 | 2000-04-04 | Carrier Corporation | Axial flow fan assembly and one-piece housing for axial flow fan assembly |
| US6132170A (en) * | 1998-12-14 | 2000-10-17 | Sunonwealth Electric Machine Industry Co., Ltd. | Miniature heat dissipating fans with minimized thickness |
| CN1369649A (en) * | 2001-02-13 | 2002-09-18 | 台达电子工业股份有限公司 | Serial fan |
| JP2004132300A (en) * | 2002-10-11 | 2004-04-30 | Minebea Co Ltd | Axial flow blowing device |
-
2004
- 2004-09-06 CN CNB2004100687782A patent/CN100453824C/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3727593A (en) * | 1970-12-19 | 1973-04-17 | Daimler Benz Ag | Installation for cooling internal combustion engines |
| FR2386706A1 (en) * | 1977-04-05 | 1978-11-03 | Neu Ets | Axial flow ventilator fan - has motor mounted by flat radial vanes with leading edges at 45 degrees to fan axis to reduce swirl |
| US5484013A (en) * | 1993-05-27 | 1996-01-16 | Nippon Densan Corporation | Heat sink fan |
| US6045327A (en) * | 1998-05-04 | 2000-04-04 | Carrier Corporation | Axial flow fan assembly and one-piece housing for axial flow fan assembly |
| US6132170A (en) * | 1998-12-14 | 2000-10-17 | Sunonwealth Electric Machine Industry Co., Ltd. | Miniature heat dissipating fans with minimized thickness |
| CN1369649A (en) * | 2001-02-13 | 2002-09-18 | 台达电子工业股份有限公司 | Serial fan |
| JP2004132300A (en) * | 2002-10-11 | 2004-04-30 | Minebea Co Ltd | Axial flow blowing device |
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| Publication number | Publication date |
|---|---|
| CN1746515A (en) | 2006-03-15 |
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