CN104373383A - Efficient blade of axial fan - Google Patents
Efficient blade of axial fan Download PDFInfo
- Publication number
- CN104373383A CN104373383A CN201410696943.2A CN201410696943A CN104373383A CN 104373383 A CN104373383 A CN 104373383A CN 201410696943 A CN201410696943 A CN 201410696943A CN 104373383 A CN104373383 A CN 104373383A
- Authority
- CN
- China
- Prior art keywords
- air
- electric fan
- blade
- fan according
- flow electric
- 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
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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
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
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- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An efficient blade of an axial fan comprises an air shaft. An electrical cavity with a backward opening is formed in the air shaft, a plurality of blade bodies are evenly fixed to the outer surface of the air shaft in an axially inclined mode, and the portions, close to the center of the air shaft, of the air outlet sides of the blade bodies are provided with convex creases. The efficient blade is larger in air quantity and higher in efficiency under the same power.
Description
Technical field
The present invention relates to a kind of axial fan, particularly relate to a kind of efficient axial-flow electric fan.
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.
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 for ensureing enough air quantity, axial fan needs to consume not little electric energy, produces considerable influence to the power consumption of electronic product.
Summary of the invention
The present invention, for solving prior art problem, provides the Axial-flow Fan that a kind of efficiency is high.
Technological scheme of the present invention is: a kind of efficient axial-flow electric fan, comprise wind axis, opening electric chamber is backward provided with in described wind axis, described wind axis outer surface is fixed with some equally distributed blades, described axial slope blade is arranged at described wind axis outer surface, and the air side of described blade is provided with flange near the central position of described wind axis.
As preferably, described flange is the protruding structure that a height is successively reduced to both sides by center.
As preferably, described protruding structure surface is circular arc.
As preferably, edge, the outer ring front surface of described blade is provided with raised line, and rear surface has air-guiding strip.
As preferably, described raised line is provided with outward-dipping side near the side of described wind axis.
As preferably, the surface of described side parallels with described air-guiding strip bottom surface.
As preferably, the surface of described side and described air-guiding strip bottom surface are all miter angle with described blade surface.
As preferably, described wind axis surface has the parallel wind groove of some and described blade.
As preferably, the spacing between adjacent described wind groove is equal.
As preferably, described wind axis front edge is provided with quiet curved surface.
As preferably, the contacting part outer surface be provided with for strengthening described blade and described wind axis join strength of described blade and described wind axis tilts, the stiffening rib that arranges continuously.
As preferably, described air-guiding strip dual-side has the chamfering of anti-gap.
Traditional axial fan operationally, complicated flow-disturbing can be formed between fan blade and framework, these flow-disturbings can produce much noise, the present invention is provided with raised line on the fan blade air side of axial fan, inlet side arranges air-guiding strip, raised line adds effective camber of fan blade edge, increase the momentum of fan blade edge air-flow, thus make air-flow easily overcome the adverse pressure gradient of pressure side in edge, the separated region of pressure side is reduced, fan blade lift increases, when blast is constant and fan diameter does not increase, effectively can improve the air quantity of axial fan, and can noise be reduced, the side tilted increases the guide effect of air-flow, contribute to promoting this effect.Air-guiding strip guides air-flow trend, makes air-flow obtain larger axial momentum, reduces the disturbance between fan blade and framework, improve fan efficiency and reduce noise simultaneously.
What flange can strengthen fan blade pushes away wind effect, under same rotational speed, promote air quantity.Because wind axis is roughly in choke state in axial fan work, tilt and the bootable air-flow trend of the stiffening rib arranged continuously, avoid wind axis as far as possible, promote airspeed, and promote air quantity with this.
Because axial fan is in running, wind axis is in high speed rotating, the air through chamfering and rotor outer surface is made not to be simple straight line motion, but spiral advances, additional stator front end flow-disturbing and affecting through the high-speed air of fan blade, very easily cause the air of this part auxiliary heat dissipation to form sinuous flow, reduce radiating effect.Therefore, arranging some wind grooves at the outer surface of rotor, for guiding air to flow, ensure that radiating effect, wind groove can also increase trochiterian surface area, improving radiating effect simultaneously.
Due to the setting of air-guiding strip, vacuum side of blade has extremely sharp side, and side arranges chamfering, contacts for reducing the casualty accident caused.
In sum, the present invention has the following advantages:
1, under identical power, air quantity is large, and efficiency is high;
2, structure is simple, and improving cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is another viewing angle constructions schematic diagram of the present invention.
In figure, 1, wind axis, 2, blade, 3, stiffening rib, 4, raised line, 5, flange, 6, air-guiding strip, 7, chamfering, 8, quiet curved surface, 9, electrically chamber.
Embodiment
With embodiment, the invention will be further described below.
Embodiment one:
A kind of efficient axial-flow electric fan, comprise wind axis 1, opening electric chamber 9 is backward provided with in wind axis 1, wind axis 1 outer surface is fixed with some equally distributed blades 2, blade 2 axioversion is arranged at wind axis 1 outer surface, and blade 2 and the contacting part of wind axis 1 outer surface be provided with for reinforced blade 2 and wind axis 1 join strength tilts, the continuous stiffening rib 3 arranged.Wind axis 1 front edge is provided with quiet curved surface 8; Edge, the outer ring front surface of blade 2 is provided with raised line 4, and rear surface has air-guiding strip 6.Raised line 4 is provided with outward-dipping side near the side of wind axis 1, and the surface of side parallels with air-guiding strip 6 bottom surface, and all surperficial in miter angle with blade 2.Air-guiding strip 6 dual-side has the chamfering 7 of anti-gap.The air side of blade 2 is provided with flange 5 near the central position of wind axis 1, and flange 5 is the protruding structure that a height is successively reduced to both sides by center, and protruding structure surface is circular arc.Wind axis 1 surface has some wind grooves parallel with blade 2, and the spacing between adjacent wind groove is equal.
Claims (9)
1. an efficient axial-flow electric fan, comprise wind axis (1), opening electric chamber (9) is backward provided with in described wind axis (1), described wind axis (1) outer surface is fixed with some equally distributed blades (2), described blade (2) axioversion is arranged at described wind axis (1) outer surface, it is characterized in that: the air side of described blade (2) is provided with flange (5) near the central position of described wind axis (1).
2. efficient axial-flow electric fan according to claim 1, is characterized in that: described flange (5) is the protruding structure that a height is successively reduced to both sides by center.
3. efficient axial-flow electric fan according to claim 2, is characterized in that: described protruding structure surface is circular arc.
4. efficient axial-flow electric fan according to claim 1, is characterized in that: edge, the outer ring front surface of described blade (2) is provided with raised line (4), and rear surface has air-guiding strip (6).
5. efficient axial-flow electric fan according to claim 4, is characterized in that: described raised line (4) is provided with outward-dipping side near the side of described wind axis (1).
6. efficient axial-flow electric fan according to claim 5, is characterized in that: the surface of described side parallels with described air-guiding strip (6) bottom surface.
7. efficient axial-flow electric fan according to claim 6 or 7, is characterized in that: the surface of described side and described air-guiding strip (6) bottom surface are all surperficial in miter angle with described blade (2).
8. efficient axial-flow electric fan according to claim 1, is characterized in that: described wind axis (1) surface has the parallel wind groove of some and described blade (2).
9. efficient axial-flow electric fan according to claim 8, is characterized in that: the spacing between adjacent described wind groove is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696943.2A CN104373383A (en) | 2014-11-28 | 2014-11-28 | Efficient blade of axial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696943.2A CN104373383A (en) | 2014-11-28 | 2014-11-28 | Efficient blade of axial fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373383A true CN104373383A (en) | 2015-02-25 |
Family
ID=52552486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410696943.2A Pending CN104373383A (en) | 2014-11-28 | 2014-11-28 | Efficient blade of axial fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373383A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825114A (en) * | 2009-03-06 | 2010-09-08 | 韩玮 | Axial flow fan capable of reducing energy consumption and noise |
| CN201786743U (en) * | 2010-09-17 | 2011-04-06 | 美的集团有限公司 | Fan blade |
| US20110094460A1 (en) * | 2008-02-21 | 2011-04-28 | Borgwarner Inc. | Partial ring cooling fan |
| CN202301179U (en) * | 2011-07-15 | 2012-07-04 | 东莞市几度电子科技有限公司 | Fan blades and fan |
| CN202628612U (en) * | 2012-06-11 | 2012-12-26 | 珠海格力电器股份有限公司 | Axial flow fan blade, fan and air conditioner outdoor machine |
| CN203098386U (en) * | 2012-11-23 | 2013-07-31 | 杭州顿力电器有限公司 | Axial fan blade |
| JP2014185551A (en) * | 2013-03-22 | 2014-10-02 | Mitsubishi Heavy Ind Ltd | Propeller fan |
| CN204299951U (en) * | 2014-11-28 | 2015-04-29 | 德清振达电气有限公司 | A kind of efficient axial-flow electric fan |
-
2014
- 2014-11-28 CN CN201410696943.2A patent/CN104373383A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110094460A1 (en) * | 2008-02-21 | 2011-04-28 | Borgwarner Inc. | Partial ring cooling fan |
| CN101825114A (en) * | 2009-03-06 | 2010-09-08 | 韩玮 | Axial flow fan capable of reducing energy consumption and noise |
| CN201786743U (en) * | 2010-09-17 | 2011-04-06 | 美的集团有限公司 | Fan blade |
| CN202301179U (en) * | 2011-07-15 | 2012-07-04 | 东莞市几度电子科技有限公司 | Fan blades and fan |
| CN202628612U (en) * | 2012-06-11 | 2012-12-26 | 珠海格力电器股份有限公司 | Axial flow fan blade, fan and air conditioner outdoor machine |
| CN203098386U (en) * | 2012-11-23 | 2013-07-31 | 杭州顿力电器有限公司 | Axial fan blade |
| JP2014185551A (en) * | 2013-03-22 | 2014-10-02 | Mitsubishi Heavy Ind Ltd | Propeller fan |
| CN204299951U (en) * | 2014-11-28 | 2015-04-29 | 德清振达电气有限公司 | A kind of efficient axial-flow electric fan |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |
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| WD01 | Invention patent application deemed withdrawn after publication |