CN102828995A - Cooling fan - Google Patents
Cooling fan Download PDFInfo
- Publication number
- CN102828995A CN102828995A CN2011101597533A CN201110159753A CN102828995A CN 102828995 A CN102828995 A CN 102828995A CN 2011101597533 A CN2011101597533 A CN 2011101597533A CN 201110159753 A CN201110159753 A CN 201110159753A CN 102828995 A CN102828995 A CN 102828995A
- Authority
- CN
- China
- Prior art keywords
- wind inlet
- radiation fan
- annular wall
- exhaust outlet
- wheel hub
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title abstract 3
- 230000005855 radiation Effects 0.000 claims description 29
- 230000003467 diminishing effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
Abstract
The invention relates to a cooling fan, comprising a frame and an impeller arranged in the frame. The frame comprises an air inlet and an air outlet opposite to the air inlet. The impeller comprises a hub and a plurality of blades arranged on the hub. The external surface of the hub is an inclined surface gradually and radially reducing from the air outlet to the air inlet, so that the air volume and air pressure at the air inlet is increased, thus further reducing the loss of eddy current of the air flow and decreasing the noise of the cooling fan.
Description
Technical field
The present invention relates to a kind of radiation fan, particularly a kind of radiation fan that is used for the heat-generating electronic elements heat radiation.
Background technique
Along with the constantly development of electronic information industry, electronic component operation frequency and speed are also in continuous lifting.The heat that high-frequency high-speed will make electronic component produce is more and more; Temperature is also increasingly high; Performance and stability when having a strong impact on the electronic component operation can normally be moved in order to ensure electronic component, must in time discharge a large amount of heats that the electronic component operation is produced.
For this reason; Industry is usually at these heat-generating electronic elements mounted on surface one radiators, with auxiliary its heat radiation, and for radiator can be distributed heat in time; Radiation fan need be installed in addition so that a forced draft to be provided on radiator, outwards dispel the heat thereby accelerate radiator.The impeller of existing radiation fan comprises that the outside that a wheel hub reaches by wheel hub is the radial some blades that extend to form, and this wheel hub is cylindric, because stopping of wheel hub reduced the air quantity of going into of radiation fan in the inlet air side, thereby influenced the radiating efficiency of radiation fan.
Summary of the invention
In view of this, thus be necessary to provide a kind of radiation fan that big incoming air area has big air output that has.
A kind of radiation fan; Comprise a fan frame and be located at the impeller in this fan frame; This fan frame comprises a wind inlet and an exhaust outlet relative with this wind inlet; This impeller comprises a wheel hub and is located on the some blades on this wheel hub, and the outer surface of its this wheel hub is one to be radially diminishing inclined-plane by exhaust outlet to the direction of wind inlet.
Compared with prior art, the outer surface of the wheel hub of this radiation fan is one to be radially diminishing inclined-plane by exhaust outlet to the direction of wind inlet, thereby strengthens the air current flow and the blast of wind inlet, and then reduces the stream swirl loss, reduces the noise of radiation fan.
Description of drawings
Fig. 1 is radiation fan one embodiment's of the present invention three-dimensional assembly diagram.
Fig. 2 is a radiation fan shown in Figure 1 side sectional view along the II-II line.
The primary component symbol description
| |
100 |
| The |
10 |
| |
11 |
| |
13 |
| |
15 |
| Dunnage | 16 |
| Body | 17 |
| Containing space | 18 |
| |
20 |
| |
21 |
| |
23 |
| Magnet ring | 25 |
| Bearing | 30 |
| Stator | 50 |
| |
110 |
| |
130 |
| Roof | 210 |
| Annular wall | 212 |
| Rotating shaft | 214 |
| The space | 215 |
Following embodiment will combine above-mentioned accompanying drawing to further specify the present invention.
Embodiment
As shown in Figure 1, this radiation fan 100 comprises a fan frame 10 and is contained in the impeller 20 in the fan frame 10.These fan frame 10 integral body bulk that roughly is square, the sidewall 15 that it comprises a top board 11, a base plate 13 relative with this top board 11 and is connected in the annular of one between this top board 11 and the base plate 13.This top board 11 is identical with the shape and the size of this base plate 13, and it is rectangular plate shape.The middle part of this top board 11 is provided with a circular wind inlet 110, and the middle part of this base plate 13 is provided with the exhaust outlet 130 of a circle relative with this wind inlet 110.
Please consult Fig. 2 simultaneously, be provided with a dunnage 16 in the exhaust outlet 130 of this base plate 13, this dunnage 16 is connected with this base plate 13 through some ribs (figure does not show).The end face middle part of this dunnage 16 upwards vertical extent forms a body 17, accommodates a bearing 30 in this body 17.These ribs uniformly-spaced are provided with and are extended out to by the outer rim of this dunnage 16 inner edge of this base plate 13.This sidewall 15 is circular, and accommodates the containing space 18 of this impeller 20 in its inner formation one.
This impeller 20 comprises a wheel hub 21 and is located on the some blades 23 on this wheel hub 21.This wheel hub 21 comprises a circular roof 210 and an annular wall 212 that is extended to form by the periphery of this roof 210 downwards, and this roof 210 is encircled into one with this annular wall 212 and is positioned at wheel hub 21 volume inside 215.The middle mind-set dunnage 16 place directions of this roof 210 extend to form a rotating shaft 214, thereby this impeller 20 is assemblied in the bearing 30 through rotating shaft 214 and is rotatably mounted on the dunnage 16, and are contained in this containing space 18.
This annular wall 212 is round table-like; Its whole outer surface forms one and is radially diminishing inclined-plane by exhaust outlet 130 to the direction of wind inlet 110; Its total inner surface forms one and is constant the facing directly of radial distance by exhaust outlet 130 to the direction of wind inlet 110; Promptly the outer surface of this annular wall 212 is diminished to the direction of wind inlet 110 and the distance between the rotating shaft 214 by exhaust outlet 130 gradually, and its internal surface is remained unchanged to the direction of wind inlet 110 and the distance between the rotating shaft 214 by exhaust outlet 130.A magnet ring 25 is sticked on the internal surface of this annular wall 212.Contain a stator 50 in this space 215, this stator 50 is sheathed on the body 17 of this fan frame 10, and rotates with drives impeller 20 with magnet ring 25 actings in conjunction.Said blade 23 is stretched out by the outer surface of this annular wall 212, and this blade 23 is spacedly distributed in the periphery of wheel hub 21, can not produce when impeller 20 is rotated and rock.
During use; This radiation fan 100 sucks air-flow by wind inlet 110 and blows out air-flow by exhaust outlet 130 again; Since the annular wall 212 of this wheel hub 21 be one by exhaust outlet 130 to wind inlet 110 gradually-reducing shape structures, reduced wheel hub 21 at wind inlet 110 places to the stopping of air-flow, thereby strengthen the air quantity and the blast of wind inlet 110; Reduce the stream swirl loss, reduce the noise of radiation fan 100.The air quantity that radiation fan produced of the relative existing technology of ﹐ radiation fan of the present invention approximately increases by 5% ﹐ blast and approximately increases by 48% Xia same rotational speed and Dimensions.During practical implementation, the shape of the roof 210 of this wheel hub 21 is not limited to the situation of present embodiment, and it can be a smooth disc, also can be a protrusion and to the cambered surface or the inclined-plane of the direction convergent of wind inlet 110.
Claims (8)
1. radiation fan; Comprise a fan frame and be located at the impeller in this fan frame; This fan frame comprises a wind inlet and an exhaust outlet relative with this wind inlet; This impeller comprises a wheel hub and is located on the some blades on this wheel hub, it is characterized in that: the outer surface of this wheel hub is one to be radially diminishing inclined-plane by exhaust outlet to the direction of wind inlet.
2. radiation fan as claimed in claim 1 is characterized in that: the annular wall that this wheel hub comprises an end face and extended to form downwards by the end face periphery, the outer surface of this annular wall are one to be radially the inclined-plane of convergent gradually by exhaust outlet to the direction of wind inlet.
3. radiation fan as claimed in claim 2 is characterized in that: this end face is a smooth rounded face.
4. radiation fan as claimed in claim 2 is characterized in that: this end face is one to cambered surface or inclined-plane that the direction convergent of wind inlet extends to form.
5. radiation fan as claimed in claim 2 is characterized in that: this end face middle part is extended with a rotating shaft downwards, and the internal surface of this annular wall is constant to the direction and the distance between this rotating shaft of wind inlet by exhaust outlet.
6. radiation fan as claimed in claim 2 is characterized in that: this end face middle part is extended with a rotating shaft downwards, and the outer surface of this annular wall is reduced to the direction of wind inlet and the distance between this rotating shaft by exhaust outlet gradually.
7. radiation fan as claimed in claim 2 is characterized in that: contain a stator in this annular wall.
8. radiation fan as claimed in claim 7 is characterized in that: the internal surface of this annular wall magnet ring that is sticked, and through this magnet ring one and this stator effect drives impeller rotation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101597533A CN102828995A (en) | 2011-06-15 | 2011-06-15 | Cooling fan |
| US13/337,060 US20120321457A1 (en) | 2011-06-15 | 2011-12-24 | Cooling fan with tapered hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101597533A CN102828995A (en) | 2011-06-15 | 2011-06-15 | Cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102828995A true CN102828995A (en) | 2012-12-19 |
Family
ID=47332247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101597533A Pending CN102828995A (en) | 2011-06-15 | 2011-06-15 | Cooling fan |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20120321457A1 (en) |
| CN (1) | CN102828995A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696356A (en) * | 2015-02-28 | 2015-06-10 | 深圳市金茂展微电机有限公司 | Bearing, motor and heat-radiating fan |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5705945B1 (en) * | 2013-10-28 | 2015-04-22 | ミネベア株式会社 | Centrifugal fan |
| CN116357611A (en) * | 2021-12-28 | 2023-06-30 | 全亿大科技（佛山）有限公司 | Fan with fan body |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4618315A (en) * | 1981-05-29 | 1986-10-21 | Papst-Motoren Gmbh & Co. | Small fan |
| CN1426511A (en) * | 2000-04-28 | 2003-06-25 | 韦拉克斯通风设备有限公司 | Blower especially for ventilating electronic devices |
| CN1896550A (en) * | 2005-07-15 | 2007-01-17 | 富准精密工业(深圳)有限公司 | Radiating fan |
| US20080219837A1 (en) * | 2007-03-06 | 2008-09-11 | Shun-Chen Chang | Fan and fan frame thereof |
| US20090226312A1 (en) * | 2008-03-07 | 2009-09-10 | Delta Electonics, Inc. | Fan and fan frame thereof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4122018C2 (en) * | 1991-07-03 | 1993-12-23 | Licentia Gmbh | Axial fan, in particular for cooling a condenser of an air conditioning system upstream of the radiator of a vehicle |
| US6082969A (en) * | 1997-12-15 | 2000-07-04 | Caterpillar Inc. | Quiet compact radiator cooling fan |
| US20020094271A1 (en) * | 2001-01-16 | 2002-07-18 | Yeuan Jian J. | Axial flow fan structure |
| JP4399761B2 (en) * | 2002-10-11 | 2010-01-20 | ミネベア株式会社 | Axial flow blower |
| DE10261574A1 (en) * | 2002-12-23 | 2004-07-01 | Robert Bosch Gmbh | Claw pole |
| TW595660U (en) * | 2002-12-27 | 2004-06-21 | Datech Technology Co Ltd | Structural reinforcement for blade of electric fan |
| TW566837U (en) * | 2003-04-23 | 2003-12-11 | Delta Electronics Inc | Fan motor structure |
| JP2005143248A (en) * | 2003-11-07 | 2005-06-02 | Aisin Seiki Co Ltd | Rotor for rotary electric machine |
| CN100529428C (en) * | 2005-08-05 | 2009-08-19 | 富准精密工业(深圳)有限公司 | Radiation fan |
| US7558061B2 (en) * | 2006-08-04 | 2009-07-07 | Hewlett-Packard Development Company, L.P. | Cooling fan module |
-
2011
- 2011-06-15 CN CN2011101597533A patent/CN102828995A/en active Pending
- 2011-12-24 US US13/337,060 patent/US20120321457A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4618315A (en) * | 1981-05-29 | 1986-10-21 | Papst-Motoren Gmbh & Co. | Small fan |
| CN1426511A (en) * | 2000-04-28 | 2003-06-25 | 韦拉克斯通风设备有限公司 | Blower especially for ventilating electronic devices |
| CN1896550A (en) * | 2005-07-15 | 2007-01-17 | 富准精密工业(深圳)有限公司 | Radiating fan |
| US20080219837A1 (en) * | 2007-03-06 | 2008-09-11 | Shun-Chen Chang | Fan and fan frame thereof |
| US20090226312A1 (en) * | 2008-03-07 | 2009-09-10 | Delta Electonics, Inc. | Fan and fan frame thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696356A (en) * | 2015-02-28 | 2015-06-10 | 深圳市金茂展微电机有限公司 | Bearing, motor and heat-radiating fan |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120321457A1 (en) | 2012-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |