CN204267331U - A kind of large power shaft flow fan - Google Patents
A kind of large power shaft flow fan Download PDFInfo
- Publication number
- CN204267331U CN204267331U CN201420724637.0U CN201420724637U CN204267331U CN 204267331 U CN204267331 U CN 204267331U CN 201420724637 U CN201420724637 U CN 201420724637U CN 204267331 U CN204267331 U CN 204267331U
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- China
- Prior art keywords
- fan
- fan blade
- large power
- power shaft
- framework
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Abstract
A kind of large power shaft flow 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.The utility model has higher rotating speed and power, and it is little to generate heat, and air quantity is large.
Description
Technical field
The utility model relates to a kind of fan, particularly relates to a kind of high-power axial 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.In some main equipments, still need powerful axial fan, but traditional large power shaft flow fan heating value is large, rotating speed is low, cannot be suitable for, and centrifugal fan price, noise is large.
Model utility content
The utility model, for solving prior art problem, provides a kind of high-power axial fan.
The technical solution of the utility model is: a kind of large power shaft flow fan, comprise framework, the axle center place of described framework is provided with blower fan, 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 utility model 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 rotation speed of the fan and power.And being provided with of wind groove helps promote the heat radiation of blower fan, makes powerful fan can not be limited to the work calories of blower fan.
In sum, the utility model has the following advantages:
1, have higher rotating speed and power, and it is little to generate heat, air quantity is large;
2, structure is simple, and improving cost is low.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is another viewing angle constructions schematic diagram of the utility model;
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 utility model is described in further detail below.
Embodiment one:
A kind of large power shaft flow 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 utility model 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 (8)
1. a large power shaft flow 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. large power shaft flow 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. large power shaft flow 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. large power shaft flow fan according to claim 3, is characterized in that: the spacing between adjacent described wind groove (5) is equal.
5. large power shaft flow fan according to claim 1, 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).
6. large power shaft flow fan according to claim 5, 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.
7. large power shaft flow fan according to claim 6, 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.
8. large power shaft flow fan according to claim 7, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724637.0U CN204267331U (en) | 2014-11-28 | 2014-11-28 | A kind of large power shaft flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724637.0U CN204267331U (en) | 2014-11-28 | 2014-11-28 | A kind of large power shaft flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267331U true CN204267331U (en) | 2015-04-15 |
Family
ID=52802202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420724637.0U Expired - Fee Related CN204267331U (en) | 2014-11-28 | 2014-11-28 | A kind of large power shaft flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454592A (en) * | 2014-11-28 | 2015-03-25 | 德清振达电气有限公司 | High-power axial fan |
-
2014
- 2014-11-28 CN CN201420724637.0U patent/CN204267331U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454592A (en) * | 2014-11-28 | 2015-03-25 | 德清振达电气有限公司 | High-power 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 |