CN104454644B - A kind of efficient axis flow fan - Google Patents
A kind of efficient axis flow fan Download PDFInfo
- Publication number
- CN104454644B CN104454644B CN201410697789.0A CN201410697789A CN104454644B CN 104454644 B CN104454644 B CN 104454644B CN 201410697789 A CN201410697789 A CN 201410697789A CN 104454644 B CN104454644 B CN 104454644B
- Authority
- CN
- China
- Prior art keywords
- fan
- fan blade
- blower fan
- framework
- dashpot
- 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.)
- Expired - Fee Related
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
- F04D29/26—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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Blower fan is provided with a kind of efficient axis flow fan, including framework, the axle center of the framework, the blower fan is fixedly connected with some fan blades, and the axial centre position that the frame inner surface is located at the blower fan is provided with the annular dashpot set around the fan blade.Under identical power of the present invention, rotating speed is high, and air quantity is big, efficiency high.
Description
Technical field
The present invention relates to a kind of fan, more particularly to a kind of aerofoil fan of efficiency high.
Background technology
The cooling fan for cooling down heat-generating electronic part can be carried by being in electrical article, OA, IT equipment.In recent years, exist
In the market, these family's electrical articles, the miniaturization of OA, IT equipment, high performance are promoted.
For the caloric value increase from electronic unit, as fan, generally use is small-sized and is easily obtained the small of air quantity
Profile shaft flow fan.But, to ensure enough air quantity, aerofoil fan is needed to consume not small electric energy, and the power consumption to electronic product is produced
Considerable influence.
The content of the invention
There is provided a kind of aerofoil fan of efficiency high to solve prior art problem by the present invention.
The technical scheme is that：It is provided with a kind of efficient axis flow fan, including framework, the axle center of the framework
Blower fan, the blower fan is fixedly connected with some fan blades, and the axial centre position that the frame inner surface is located at the blower fan is provided with
The annular dashpot set around the fan blade.
Preferably, antetheca and rear wall of the dashpot along blower fan axial direction are each perpendicular to the center of the blower fan
Axle.
Preferably, the lateral wall of the dashpot is provided with the guiding of the V-arrangement of the tip sensing fan blade of an annular
Cone.
Preferably, the distance between the outermost point of the fan blade and described dashpot lateral wall no more than fan blade are long
The 1/5 of degree.
Preferably, to favour the blower fan axially arranged for the fan blade；The width of the dashpot is not more than the wind
Projection width during leaf rotation on said frame.
Preferably, the fan blade is fixedly installed on the outer surface of the blower fan；The blower fan outer surface is located at adjacent institute
State and be provided with some wind grooves parallel with the fan blade between fan blade.
Preferably, the spacing between the adjacent wind groove is equal.
Preferably, the fan blade air side is provided with flange close to the center of the blower fan.
Preferably, the length of the flange is not more than the half of the fan blade length；The thickness of the flange is not more than
5 times of the fan blade thickness.
Preferably, all flangings in flange surface are circular arc chamfering.
Traditional aerofoil fan can operationally, between fan blade and framework form the flow-disturbing of complexity, and these flow-disturbings can be disturbed
The rotation of fan blade, reduces the rotating speed of fan blade.What the flange that is set on fan blade of the present invention can strengthen fan blade pushes away wind effect, identical
Air quantity is lifted under rotating speed.Simultaneously in frame inner surface, along the turning circumference of fan blade, a dashpot is opened, when fan blade high-speed rotation
When, a stable high velocity air can be formed in dashpot by the air of fan blade rotation disturbance, the air-flow can reduce fan blade and
The air pressure in space between framework so that during the operation of conventional axial-flow fan, the air disturbance at the position is inhaled into air-flow, simultaneously should
High velocity air is identical with fan blade rotation direction due to direction, therefore forms lubricating layer between fan blade and framework, effectively reduces wind
Leaf resistance.
In summary, the present invention has advantages below：
1st, under identical power, rotating speed is high, and air quantity is big, efficiency high；
2nd, simple in construction, improving cost is low.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is another viewing angle constructions schematic diagram of the invention；
Fig. 3 is A-A anatomical structure schematic diagrames in Fig. 2.
In figure, 1, framework, 2, fan blade, 3, stator, 4, rotor, 5, wind groove, 6, chamfering, 7, dashpot, 8, guide cone, 9, convex
Pleat.
Embodiment
With embodiment, the invention will be further described below.
Embodiment one：
Blower fan is provided with a kind of efficient axis flow fan, including framework 1, the axle center of framework 1, blower fan includes and framework 1
The stator 3 being fixedly connected, is arranged at the rotor 4 on stator 3, and the fan blade 2 being fixedly installed on the circumference of rotor 4, and stator 3 is leaned on
The air intake vent of nearly framework 1, rotor 4 is close to the air outlet of framework 1, and the air intake vent side that stator 3 is located at framework 1 is provided with chamfering 6.
Fan blade 2 is fixedly installed on the outer surface of rotor 4；The outer surface of rotor 4 is provided with some parallel with fan blade 2 between adjacent fan blade 2
Wind groove 5, the chamfering 6 of stator 3 extends to the porch of wind groove 5 to rotor 4.Spacing between adjacent wind groove 5 is equal.Rotor 4
Positioned at the external diameter of fan blade 2 and rotor 4 between the termination of the air outlet of framework 1 along rotor 4 axially to the air outlet direction of framework 1
Extension gradually reduces, and the minimum outer diameter of rotor 4 is not less than the 1/2 of maximum outside diameter.
The axial centre position that the inner surface of framework 1 is located at blower fan is provided with the annular dashpot 7 set around fan blade 2, wind
The distance between outermost point and the lateral wall of dashpot 7 of leaf 2 are not more than the 1/5 of the length of fan blade 2.Dashpot 7 along blower fan axial direction
Antetheca and rear wall are each perpendicular to the central shaft of blower fan, and it is axially arranged that fan blade 2 favours blower fan；The width of dashpot 7 is not more than wind
The projection width during rotation of leaf 2 on framework 1.The lateral wall of dashpot 7 is provided with the V-arrangement of the tip sensing fan blade 2 of an annular
Guide cone 8.
The air side of fan blade 2 is provided with flange 9 close to the center of blower fan.The length of flange 9 is not more than the length of fan blade 2
Half；The thickness of flange 9 is not more than 5 times of the thickness of fan blade 2.All flangings in the surface of flange 9 are circular arc chamfering.
Operationally, during exhausting, most of air is pushed to out the present invention from the hollow part of framework 1 by fan blade 2
Air port, have fraction air by stator 3 be blocked in fan front formation flow-disturbing, have fraction air by after chamfering 6 along rotor 4
Outer surface, by the water conservancy diversion of wind groove 5.Fan blade 2 can form one by the air of the rotation disturbance of fan blade 2 in high-speed rotation in dashpot 7
The stable high velocity air of bar, the air-flow can reduce the air pressure in space between fan blade 2 and framework 1 so that the fortune of conventional axial-flow fan
During row, the air disturbance at the position is inhaled into air-flow, while the high velocity air is identical with the rotation direction of fan blade 2 due to direction, because
This forms lubricating layer between fan blade 2 and framework 1.Guide cone 8 is used to split high velocity air so that in high velocity air formation one
Between fast, the slow circulation in two ends, further strengthen removing flow-disturbing effect, lift lubricant effect.What flange 9 can strengthen fan blade 2 pushes away wind
Effect, air quantity is lifted under same rotational speed.
Claims (1)
1. a kind of efficient axis flow fan, including framework（1）, the framework（1）Axle center at be provided with blower fan, the blower fan is consolidated
Surely some fan blades are connected with（2）, it is characterised in that：The fan blade（2）Air side is provided with close to the center of the blower fan
Flange（9）；The framework（1）The axial centre position that inner surface is located at the blower fan is provided with around the fan blade（2）Set
The dashpot of annular（7）；The dashpot（7）The center of the blower fan is each perpendicular to along the antetheca and rear wall of blower fan axial direction
Axle；The dashpot（7）Lateral wall be provided with the tip of an annular and point to the fan blade（2）V-arrangement guide cone（8）；Institute
State flange（9）Length be not more than the fan blade（2）The half of length；The flange（9）Thickness be not more than the fan blade（2）
5 times of thickness；The flange（9）All flangings in surface are circular arc chamfering；The fan blade（2）Outermost point and the buffering
Groove（7）The distance between lateral wall is not more than the fan blade（2）The 1/5 of length；The fan blade（2）Favour the blower fan axial direction
Set；The dashpot（7）Width be not more than the fan blade（2）In the framework during rotation（1）On projection width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697789.0A CN104454644B (en) | 2014-11-28 | 2014-11-28 | A kind of efficient axis flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697789.0A CN104454644B (en) | 2014-11-28 | 2014-11-28 | A kind of efficient axis flow fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104454644A CN104454644A (en) | 2015-03-25 |
| CN104454644B true CN104454644B (en) | 2017-10-27 |
Family
ID=52901225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410697789.0A Expired - Fee Related CN104454644B (en) | 2014-11-28 | 2014-11-28 | A kind of efficient axis flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454644B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100808869B1 (en) * | 2003-10-24 | 2008-03-03 | 삼성전자주식회사 | A ventilation fan and microwaveoven applying the same |
| CN201401365Y (en) * | 2009-03-23 | 2010-02-10 | 台达电子工业股份有限公司 | Fan and fan impeller thereof |
| CN202007796U (en) * | 2010-12-13 | 2011-10-12 | 元山科技工业股份有限公司 | Fan frame |
| CN203098386U (en) * | 2012-11-23 | 2013-07-31 | 杭州顿力电器有限公司 | Axial fan blade |
| CN203809354U (en) * | 2014-04-23 | 2014-09-03 | 镇江市博林光电科技有限公司 | Axial flow fan with large suction force |
| CN204267367U (en) * | 2014-11-28 | 2015-04-15 | 德清振达电气有限公司 | A kind of efficient axis flow fan |
-
2014
- 2014-11-28 CN CN201410697789.0A patent/CN104454644B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104454644A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204267333U (en) | A kind of high performance of axial flow pump fan | |
| CN104653515B (en) | A kind of double-suction type centrifugal fan | |
| CN103486081B (en) | Axial-flow fan blade, fan and air-conditioner outdoor unit | |
| CN204267368U (en) | A kind of Wind Volume axial fan | |
| CN204267332U (en) | A kind of efficient quiet axial fan | |
| CN105240317A (en) | Fan blade | |
| CN104329276A (en) | Efficient mute axial flow fan | |
| CN204267382U (en) | A kind of low noise axial fan | |
| CN104405654A (en) | Mute axial flow fan | |
| WO2012137405A1 (en) | Ceiling fan | |
| CN202628612U (en) | Axial flow fan blade, fan and air conditioner outdoor machine | |
| CN104454644B (en) | A kind of efficient axis flow fan | |
| KR101251618B1 (en) | Ribbon wire guide roller | |
| CN209340209U (en) | Asymmetric both sides air inlet impeller, centrifugal blower and kitchen ventilator | |
| CN204267314U (en) | A kind of quiet axial fan | |
| CN204267367U (en) | A kind of efficient axis flow fan | |
| CN204299893U (en) | A kind of low power consumption axial fan | |
| CN207004918U (en) | A kind of centrifugal wind wheel that can improve flow field | |
| CN204267331U (en) | A kind of large power shaft flow fan | |
| CN103629156B (en) | A kind of central air conditioner outdoor unit but axial-flow blower of low-noise high-efficiency | |
| CN207750261U (en) | Efficient mute micro-motor flow fan | |
| CN207004919U (en) | Axial flow blower 3 d impeller with leaf vein texture and splitterr vanes | |
| CN205277914U (en) | Axial flow fan and fan wheel thereof | |
| CN207393526U (en) | High-power micro-motor flow fan | |
| CN104481931A (en) | Low-noise axial fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 Termination date: 20181128 |