CN204267315U - A kind of axial fan - Google Patents
A kind of axial fan Download PDFInfo
- Publication number
- CN204267315U CN204267315U CN201420725373.0U CN201420725373U CN204267315U CN 204267315 U CN204267315 U CN 204267315U CN 201420725373 U CN201420725373 U CN 201420725373U CN 204267315 U CN204267315 U CN 204267315U
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- China
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- rotor
- framework
- fan
- stator
- axial fan
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Abstract
A kind of axial fan, comprise framework, blower fan is provided with in described framework, described blower fan comprises the stator be fixedly connected with described framework, be arranged at the rotor on described stator, and be fixedly installed on the fan blade in described rotor circumference, described stator is near the wind inlet of described framework, described rotor is near the exhaust outlet of described framework, and the wind inlet side that described stator is positioned at described framework is provided with chamfering.The utility model is affixed on the moving air of rotating shaft in fan shaft place forming section, for taking away the heat that rotating shaft produces.
Description
Technical field
The present invention relates to a kind of fan, particularly relate to the axial fan that a kind of thermal diffusivity is good.
Background technique
To be in the cooling fan that to carry in electrical article, OA, IT equipment for cooling heat-generating electronic part.In recent years, commercially, these family's electrical articles, the miniaturization of OA, IT equipment, high performance advance.Along with this miniaturization, high performance, due to the densification of the electronic unit in device interior structure, the heating value from electronic unit has the trend of increase.
Increase for the heating value from electronic unit, as fan, usually adopt small-sized and be easy to obtain the small axial flow fan of air quantity.But, when utilizing small axial flow fan to cool, in order to obtain desired cooling air quantity, fan High Rotation Speed must be made, causing fan self-heating serious, affecting radiating efficiency, reduce the life-span of fan simultaneously.
Summary of the invention
The present invention, for solving prior art problem, provides the axial fan that a kind of self-radiating is effective.
Technological scheme of the present invention is: a kind of axial fan, comprise framework, blower fan is provided with in described framework, described blower fan comprises the stator be fixedly connected with described framework, be arranged at the rotor on described stator, and be fixedly installed on the fan blade in described rotor circumference, described stator is near the wind inlet of described framework, described rotor is near the exhaust outlet of described framework, and the wind inlet side that described stator is positioned at described framework is provided with chamfering.
As preferably, described fan blade is fixedly installed on the outer surface of described rotor; Described rotor outer surface has the parallel wind groove of some and described fan blade between adjacent described fan blade.
As preferably, the chamfering of described stator extends to the ingress of described wind groove to described rotor.
As preferably, the spacing between adjacent described wind groove is equal.
As preferably, at described fan blade and described rotor, the external diameter between the termination of described framework exhaust outlet successively reducing along axially extending to described framework exhaust outlet direction of described rotor described rotor.
As preferably, the minimum outer diameter of described rotor is not less than 1/2 of maximum outside diameter.
Axial fan is being lifting air quantity, rotating speed must be promoted, after rotating speed promotes, increased by the air quantity of fan itself, but due to the structure problem of conventional axial-flow fan self, rotating shaft place of generating heat maximum air quantity is minimum, the heat causing fan self to produce cannot shed, traditional axial fan still cannot address this problem so far, causes axial fan cannot provide the product of high-power, high air quantity.
Wind direction due to traditional axial fan is all blow to rotor by stator, therefore the present invention outputs chamfering in the stator front end of axial fan, make axial fan operationally, in the process of exhausting, major part air is pushed to exhaust outlet from framework hollow part through fan blade, fraction air is had to be formed flow-disturbing by stator barrier at fan front, there is fraction air by passing through along rotor outer surface after chamfering, due to the existence of flow-disturbing, make to be subject to a lasting thrust along chamfering through the air of rotor outer surface process, and have passed through chamfering due to this part air, so this part air is elongated compared with the path that the air of fan blade flows through with direct, relative to the direct air through fan blade, this part air velocity through chamfering is slower, therefore can repel by the air through fan blade, be subject to the thrust that one is pointed to rotor outer surface, make this part air through chamfering be close to rotor outer surface to pass through, effectively take away the heat that rotor produces.
Due to the rotation of rotor, make the air through chamfering and rotor outer surface not be simple straight line motion, but spiral advances, additional stator front end flow-disturbing and the high-speed air through fan blade affect, very easily cause the air of this part auxiliary heat dissipation to form sinuous flow, reduce radiating effect.Therefore, preferably, can arranging some wind grooves, for guiding air to flow, ensure that radiating effect at the outer surface of rotor, wind groove can also increase trochiterian surface area, improving radiating effect simultaneously.
The rear end of rotor arranges the plane of inclination that an external diameter successively reduces, and for expanding heat radiation air cross-section area, the air of same quantity, cross-section area expands, then air pressure must reduce, and lowpressure produces follow-up air and draws effect, the flow velocity of heat radiation air.Make the integral shaft of axial fan form the shape of similar fairing simultaneously, reduce axle windage in the gas flow, the air quantity of lift shaft flow fan under the prerequisite of equal-wattage.
In sum, the present invention has the following advantages:
1, the moving air of rotating shaft is affixed in fan shaft place forming section, for taking away the heat that rotating shaft produces;
2, there is higher blast under equal-wattage.
Accompanying drawing explanation
Fig. 1 is back angle perspective view of the present invention;
Fig. 2 is the present invention front visual angle perspective view;
Fig. 3 is A-A anatomical structure schematic diagram in Fig. 2.
In figure, 1, framework, 2, fan blade, 3, stator, 4, rotor, 5, wind groove, 6, chamfering.
Embodiment
With embodiment, the invention will be further described below.
Embodiment one:
A kind of axial fan, comprise framework 1, blower fan is provided with in framework 1, blower fan comprises the stator 3 be fixedly connected with framework 1, be arranged at the rotor 4 on stator 3, and be fixedly installed on rotor 4 fan blade 2 circumferentially, stator 3 is near the wind inlet of framework 1, rotor 4 is near the exhaust outlet of framework 1, and the wind inlet side that stator 3 is positioned at framework 1 is provided with chamfering 6.Fan blade 2 is fixedly installed on the outer surface of rotor 4; Rotor 4 outer surface has some wind grooves 5 parallel with fan blade 2 between adjacent fan blade 2, and the chamfering 6 of stator 3 extends to the ingress of wind groove 5 to rotor 4.Spacing between adjacent wind groove 5 is equal.
At fan blade 2 and rotor 4, the external diameter between the termination of framework 1 exhaust outlet successively reduces along axially extending to framework 1 exhaust outlet direction of rotor 4 rotor 4, and the minimum outer diameter of rotor 4 is not less than 1/2 of maximum outside diameter.
The present invention operationally, in the process of exhausting, most of air is pushed to exhaust outlet from framework 1 hollow part through fan blade 2, has fraction air to be blocked in fan front by stator 3 and forms flow-disturbing, have fraction air by after chamfering 6 along rotor 4 outer surface, by wind groove 5 water conservancy diversion.
Claims (6)
1. an axial fan, comprise framework (1), described framework is provided with blower fan in (1), described blower fan comprises the stator (3) be fixedly connected with described framework (1), be arranged at the rotor (4) on described stator (3), and be fixedly installed on described rotor (4) fan blade circumferentially (2), described stator (3) is near the wind inlet of described framework (1), described rotor (4), near the exhaust outlet of described framework (1), is characterized in that: the wind inlet side that described stator (3) is positioned at described framework (1) is provided with chamfering (6).
2. axial fan according to claim 1, is characterized in that: described fan blade (2) is fixedly installed on the outer surface of described rotor (4); Described rotor (4) outer surface is positioned between adjacent described fan blade (2) and has the parallel wind groove (5) of some and described fan blade (2).
3. axial fan according to claim 2, is characterized in that: the chamfering (6) of described stator (3) extends to the ingress of described wind groove (5) to described rotor (4).
4. axial fan according to claim 3, is characterized in that: the spacing between adjacent described wind groove (5) is equal.
5. axial fan according to claim 1, is characterized in that: described rotor (4) is positioned at described fan blade (2) and the external diameter of described rotor (4) between the termination of described framework (1) exhaust outlet successively reducing along axially extending to described framework (1) exhaust outlet direction of described rotor (4).
6. axial fan according to claim 5, is characterized in that: the minimum outer diameter of described rotor (4) is not less than 1/2 of maximum outside diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725373.0U CN204267315U (en) | 2014-11-28 | 2014-11-28 | A kind of axial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725373.0U CN204267315U (en) | 2014-11-28 | 2014-11-28 | A kind of axial fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267315U true CN204267315U (en) | 2015-04-15 |
Family
ID=52802186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420725373.0U Expired - Fee Related CN204267315U (en) | 2014-11-28 | 2014-11-28 | A kind of axial fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358693A (en) * | 2014-11-28 | 2015-02-18 | 德清振达电气有限公司 | Axial fan |
-
2014
- 2014-11-28 CN CN201420725373.0U patent/CN204267315U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358693A (en) * | 2014-11-28 | 2015-02-18 | 德清振达电气有限公司 | Axial fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150415 Termination date: 20151128 |