CN104329275A - High-rotation-speed axial flow fan - Google Patents
High-rotation-speed axial flow fan Download PDFInfo
- Publication number
- CN104329275A CN104329275A CN201410697449.8A CN201410697449A CN104329275A CN 104329275 A CN104329275 A CN 104329275A CN 201410697449 A CN201410697449 A CN 201410697449A CN 104329275 A CN104329275 A CN 104329275A
- Authority
- CN
- China
- Prior art keywords
- fan
- fan blade
- axial flow
- framework
- high performance
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
- F04D29/526—Details of the casing section radially opposing blade tips
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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
Abstract
The invention discloses a high-rotation-speed axial flow fan. The high-rotation-speed axial flow fan comprises a framework, wherein the axis of the framework is provided with a fan; the fan is fixedly connected with a plurality of fan blades; the part, which is positioned at the axial central part of the fan, of the inner surface of the framework, is provided with an annular buffer groove arranged around the fan blades. The fan is high in rotation speed, and can effectively increase the air quantity within a certain volume.
Description
Technical field
The present invention relates to a kind of fan, particularly relate to the axial fan that a kind of rotating speed is high.
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 current small axial flow fan still is apparent not enough by air quantity that volume is limit.
Summary of the invention
The present invention, for solving prior art problem, provides the axial fan that a kind of rotating speed is high.
Technological scheme of the present invention is: a kind of high performance of axial flow pump fan, comprise framework, the axle center place of described framework is provided with blower fan, and described blower fan is fixedly connected with some fan blades, and the axial centre position that described frame inner surface is positioned at described blower fan has the dashpot of the annular arranged around described fan blade.
As preferably, described dashpot along described fan shaft to antetheca and rear wall all perpendicular to the central shaft of described blower fan.
As preferably, the guide cone of the V-arrangement of described fan blade is pointed at the tip that the outer side wall of described dashpot is provided with an annular.
As preferably, the distance between the outermost point of described fan blade and described dashpot outer side wall is not more than 1/5 of described fan blade length.
As preferably, described fan blade favours described fan shaft to setting; The width of described dashpot to be not more than when described fan blade rotates projection width on said frame.
As preferably, described fan blade is fixedly installed on the outer surface of described blower fan; Described blower fan outer surface has the parallel wind groove of some and described fan blade between adjacent described fan blade.
As preferably, the spacing between adjacent described wind groove is equal.
As preferably, described fan blade air side is provided with flange near the central position of described blower fan.
As preferably, the length of described flange is not more than the half of described fan blade length; The thickness of described flange is not more than 5 times of described fan blade thickness.
As preferably, all flangings in described flange surface are circular arc chamfering.
Operationally, can form complicated flow-disturbing between fan blade and framework, these flow-disturbings can disturb the rotation of fan blade to traditional axial fan, reduce the rotating speed of fan blade.The present invention is at frame inner surface, along the turning circumference of fan blade, open a dashpot, when fan blade high speed rotating, a stable high velocity air can be formed in dashpot by the air of fan blade rotation disturbance, this air-flow can reduce the air pressure in space between fan blade and framework, when making the operation of conventional axial-flow fan, the air disturbance at this position is inhaled into air-flow, simultaneously this high velocity air due to direction identical with fan blade sense of rotation, therefore between fan blade and framework, form lubricating layer, effectively reduce fan blade resistance, promote fan blade rotating speed.
In sum, the present invention has the following advantages:
1, rotation speed of the fan is high, has in certain volume and effectively promotes air quantity;
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;
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, 7, dashpot, 8, guide cone, 9, flange.
Embodiment
With embodiment, the invention will be further described below.
Embodiment one:
A kind of high performance of axial flow pump fan, comprise framework 1, the axle center place of framework 1 is provided with blower fan, 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 axial centre position that framework 1 internal surface is positioned at blower fan has the dashpot 7 of the annular arranged around fan blade 2, and the distance between the outermost point of fan blade 2 and dashpot 7 outer side wall is not more than 1/5 of fan blade 2 length.Dashpot 7 along fan shaft to antetheca and rear wall all perpendicular to the central shaft of blower fan, fan blade 2 favours fan shaft to setting; The width of dashpot 7 is not more than projection width when fan blade 2 rotates on framework 1.The outer side wall of dashpot 7 is provided with the guide cone 8 of the V-arrangement of the tip sensing fan blade 2 of an annular.
Fan blade 2 air side is provided with flange 9 near the central position of blower fan.The length of flange 9 is not more than the half of fan blade 2 length; The thickness of flange 9 is not more than 5 times of fan blade 2 thickness.The surperficial all flangings of flange 9 are circular arc chamfering.
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.Fan blade 2 is when high speed rotating, a stable high velocity air can be formed in dashpot 7 by the air of fan blade 2 rotation disturbance, this air-flow can reduce the air pressure in space between fan blade 2 and framework 1, when making the operation of conventional axial-flow fan, the air disturbance at this position is inhaled into air-flow, this high velocity air is identical with fan blade 2 sense of rotation due to direction simultaneously, therefore between fan blade 2 and framework 1, forms lubricating layer.Guide cone 8, for splitting high velocity air, makes high velocity air form a centre fast, the circulation that two ends are slow, strengthens further removing flow-disturbing effect, promotes lubrication effect.What flange 9 can strengthen fan blade 2 pushes away wind effect, under same rotational speed, promote air quantity.
Claims (7)
1. one kind high performance of axial flow pump fan, comprise framework (1), the axle center place of described framework (1) is provided with blower fan, described blower fan is fixedly connected with some fan blades (2), it is characterized in that: the axial centre position that described framework (1) internal surface is positioned at described blower fan has the dashpot (7) of the annular arranged around described fan blade (2).
2. high performance of axial flow pump fan according to claim 1, is characterized in that: described dashpot (7) along described fan shaft to antetheca and rear wall all perpendicular to the central shaft of described blower fan.
3. high performance of axial flow pump fan according to claim 2, is characterized in that: the guide cone (8) of the V-arrangement of described fan blade (2) is pointed at the tip that the outer side wall of described dashpot (7) is provided with an annular.
4. high performance of axial flow pump fan according to claim 3, is characterized in that: the distance between the outermost point of described fan blade (2) and described dashpot (7) outer side wall is not more than 1/5 of described fan blade (2) length.
5. high performance of axial flow pump fan according to claim 1, is characterized in that: described fan blade (2) favours described fan shaft to setting; The width of described dashpot (7) is not more than projection width when described fan blade (2) rotates on described framework (1).
6. high performance of axial flow pump fan according to claim 1, is characterized in that: described fan blade (2) is fixedly installed on the outer surface of described blower fan; Described blower fan outer surface is positioned between adjacent described fan blade (2) and has the parallel wind groove (5) of some and described fan blade (2).
7. high performance of axial flow pump fan according to claim 6, is characterized in that: the spacing between adjacent described wind groove (5) is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697449.8A CN104329275A (en) | 2014-11-28 | 2014-11-28 | High-rotation-speed axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697449.8A CN104329275A (en) | 2014-11-28 | 2014-11-28 | High-rotation-speed axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104329275A true CN104329275A (en) | 2015-02-04 |
Family
ID=52404061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410697449.8A Pending CN104329275A (en) | 2014-11-28 | 2014-11-28 | High-rotation-speed axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104329275A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202031881U (en) * | 2011-03-15 | 2011-11-09 | 苏州工业园区星德胜电机有限公司 | Dust collector motor fan structure |
| JP2012154210A (en) * | 2011-01-24 | 2012-08-16 | Twinbird Corp | Axial fan and blower using the axial fan |
| CN102828977A (en) * | 2012-09-18 | 2012-12-19 | 四川高通环保科技股份有限公司 | Energy-saving fan |
| CN103195750A (en) * | 2013-04-22 | 2013-07-10 | 无锡科博增压器有限公司 | Efficient gas compressor vane wheel |
| 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 |
| CN204267333U (en) * | 2014-11-28 | 2015-04-15 | 德清振达电气有限公司 | A kind of high performance of axial flow pump fan |
-
2014
- 2014-11-28 CN CN201410697449.8A patent/CN104329275A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012154210A (en) * | 2011-01-24 | 2012-08-16 | Twinbird Corp | Axial fan and blower using the axial fan |
| CN202031881U (en) * | 2011-03-15 | 2011-11-09 | 苏州工业园区星德胜电机有限公司 | Dust collector motor fan structure |
| CN102828977A (en) * | 2012-09-18 | 2012-12-19 | 四川高通环保科技股份有限公司 | Energy-saving fan |
| CN103195750A (en) * | 2013-04-22 | 2013-07-10 | 无锡科博增压器有限公司 | Efficient gas compressor vane wheel |
| 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 |
| CN204267333U (en) * | 2014-11-28 | 2015-04-15 | 德清振达电气有限公司 | A kind of high performance of axial flow pump 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: 20150204 |
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| WD01 | Invention patent application deemed withdrawn after publication |