CN104389821A - Silent axial fan blade - Google Patents
Silent axial fan blade Download PDFInfo
- Publication number
- CN104389821A CN104389821A CN201410697632.8A CN201410697632A CN104389821A CN 104389821 A CN104389821 A CN 104389821A CN 201410697632 A CN201410697632 A CN 201410697632A CN 104389821 A CN104389821 A CN 104389821A
- Authority
- CN
- China
- Prior art keywords
- wind axis
- flow fan
- air
- blade
- quiet
- 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
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
- F04D29/66—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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- 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
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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
- F04D29/26—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
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
-
- 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
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a silent axial fan blade. The silent axial fan blade comprises a wind axis, wherein the wind axis is internally provided with an electric cavity with the opening pointing backwards; multiple blades in uniform distribution are fixedly arranged on the outer surface of the wind axis; the blade is axially and obliquely arranged on the outer surface of the wind axis; a silent curved surface is arranged on the edge of the front end of the wind axis; a convex bar is arranged on the front surfaces of the edges of the external circles of the blades while a wind guide bar is arranged on the back surfaces thereof. The silent axial fan blade is lower in noise and comfortable to use under the precondition of guaranteeing wind volume to the greatest extent.
Description
Technical field
The present invention relates to a kind of axial fan, particularly relate to a kind of quiet Axial-flow 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 has higher rotating speed, now air flow at high speed and motor itself all can produce larger noise, bring negative effect to the use of electronic equipment.The quiet fan of current routine often adopts and falls slow-revving mode, and the method has two large shortcomings, and 1, do not make improvements, obviously reduce air quantity, 2, ensure that air quantity then must increase fan volume as needs.
Summary of the invention
The present invention, for solving prior art problem, provides a kind of Axial-flow Fan of low noise.
Technological scheme of the present invention is: a kind of quiet Axial-flow 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 described wind axis front edge is provided with quiet curved surface; Edge, the outer ring front surface of described blade is provided with raised line, and rear surface has air-guiding strip.
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, 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, 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 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.The surface of circular arc avoids the direct impact of flow at high speed air, noise decrease.
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 the prerequisite as far as possible ensureing air quantity, noise is lower, uses comfortable;
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 quiet Axial-flow 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 (8)
1. a quiet Axial-flow 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: described wind axis (1) front edge is provided with quiet curved surface (8); Edge, the outer ring front surface of described blade (2) is provided with raised line (4), and rear surface has air-guiding strip (6).
2. quiet Axial-flow Fan according to claim 1, is characterized in that: described blade (2) and the contacting part outer surface be provided with for strengthening described blade (2) and described wind axis (1) join strength of described wind axis (1) tilt, the continuous stiffening rib (3) arranged.
3. quiet Axial-flow Fan according to claim 1, 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).
4. quiet Axial-flow Fan according to claim 3, is characterized in that: described flange (5) is the protruding structure that a height is successively reduced to both sides by center.
5. quiet Axial-flow Fan according to claim 4, is characterized in that: described protruding structure surface is circular arc.
6. quiet Axial-flow Fan according to claim 1, is characterized in that: described raised line (4) is provided with outward-dipping side near the side of described wind axis (1).
7. quiet Axial-flow Fan according to claim 6, is characterized in that: the surface of described side parallels with described air-guiding strip (6) bottom surface.
8. quiet Axial-flow 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697632.8A CN104389821A (en) | 2014-11-28 | 2014-11-28 | Silent axial fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697632.8A CN104389821A (en) | 2014-11-28 | 2014-11-28 | Silent axial fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104389821A true CN104389821A (en) | 2015-03-04 |
Family
ID=52607767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410697632.8A Pending CN104389821A (en) | 2014-11-28 | 2014-11-28 | Silent axial fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104389821A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791266A (en) * | 2015-04-02 | 2015-07-22 | 周玉红 | Silent fan of xylene distilling machine |
| CN108488100A (en) * | 2018-05-11 | 2018-09-04 | 德清恒鑫电子有限公司 | A kind of disjunctor wind wheel structure of small-sized fans |
| CN110145490A (en) * | 2019-06-24 | 2019-08-20 | 湖州越球电机有限公司 | A kind of super-silent axial wheel of reversed curved surface decompression |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3979388B2 (en) * | 2002-02-28 | 2007-09-19 | ダイキン工業株式会社 | Blower |
| CN101265923A (en) * | 2007-03-14 | 2008-09-17 | 台达电子工业股份有限公司 | Fan and its fan frame |
| CN201212489Y (en) * | 2008-03-12 | 2009-03-25 | 韩玮 | Axial flow fan for reducing energy consumption and noise |
| CN201554695U (en) * | 2009-07-13 | 2010-08-18 | 李文成 | Integral glass steel fan impeller |
| US20110094460A1 (en) * | 2008-02-21 | 2011-04-28 | Borgwarner Inc. | Partial ring cooling fan |
| CN201991828U (en) * | 2011-03-25 | 2011-09-28 | 珠海格力电器股份有限公司 | Axial flow wind wheel |
| CN104145118A (en) * | 2012-04-10 | 2014-11-12 | 夏普株式会社 | Propeller fan, fluid sending device, and mold for molding |
| CN204267383U (en) * | 2014-11-28 | 2015-04-15 | 德清振达电气有限公司 | A kind of quiet Axial-flow Fan |
-
2014
- 2014-11-28 CN CN201410697632.8A patent/CN104389821A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3979388B2 (en) * | 2002-02-28 | 2007-09-19 | ダイキン工業株式会社 | Blower |
| CN101265923A (en) * | 2007-03-14 | 2008-09-17 | 台达电子工业股份有限公司 | Fan and its fan frame |
| US20110094460A1 (en) * | 2008-02-21 | 2011-04-28 | Borgwarner Inc. | Partial ring cooling fan |
| CN201212489Y (en) * | 2008-03-12 | 2009-03-25 | 韩玮 | Axial flow fan for reducing energy consumption and noise |
| CN201554695U (en) * | 2009-07-13 | 2010-08-18 | 李文成 | Integral glass steel fan impeller |
| CN201991828U (en) * | 2011-03-25 | 2011-09-28 | 珠海格力电器股份有限公司 | Axial flow wind wheel |
| CN104145118A (en) * | 2012-04-10 | 2014-11-12 | 夏普株式会社 | Propeller fan, fluid sending device, and mold for molding |
| CN204267383U (en) * | 2014-11-28 | 2015-04-15 | 德清振达电气有限公司 | A kind of quiet Axial-flow Fan |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791266A (en) * | 2015-04-02 | 2015-07-22 | 周玉红 | Silent fan of xylene distilling machine |
| CN108488100A (en) * | 2018-05-11 | 2018-09-04 | 德清恒鑫电子有限公司 | A kind of disjunctor wind wheel structure of small-sized fans |
| CN110145490A (en) * | 2019-06-24 | 2019-08-20 | 湖州越球电机有限公司 | A kind of super-silent axial wheel of reversed curved surface decompression |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |