CN102562662A - Axial flow wind wheel - Google Patents
Axial flow wind wheel Download PDFInfo
- Publication number
- CN102562662A CN102562662A CN2012100378552A CN201210037855A CN102562662A CN 102562662 A CN102562662 A CN 102562662A CN 2012100378552 A CN2012100378552 A CN 2012100378552A CN 201210037855 A CN201210037855 A CN 201210037855A CN 102562662 A CN102562662 A CN 102562662A
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- Prior art keywords
- wind wheel
- concave surface
- hub
- axial
- reduced
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- 239000000463 material Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The axial flow wind wheel includes hub and blades mounted on the hub, and the blades are uniformly distributed in the center of rotation of the hub and features that the hub has concave surface. The height of the hub is h, the height of the concave surface is d, and d/h is more than 0.2 and less than 0.9. The included angle between the connecting line between the initial end surface of the concave surface and the rotation center and the connecting line between the tail end surface of the concave surface and the rotation center is alpha, and alpha is more than 10 degrees and less than 150 degrees. The concave surface is designed on the hub of the wind wheel, so that the flow field of the blade root part is effectively improved, the vortex of the blade root part is reduced, the vortex noise is reduced, the weight of the wind wheel is reduced, the power of a motor is reduced, and the energy efficiency of the fan is improved. Through design concave surface on axial compressor wind wheel hub, not only alleviateed the weight of whole wind wheel, reduced the cost of whole wind wheel moreover, the intensity of wind wheel does not weaken simultaneously, satisfies each item test requirement of wind wheel.
Description
Technical field
The present invention relates to a kind of wind wheel, particularly a kind of axial-flow windwheel.
Background technique
Axial-flow windwheel is because air quantity is big, noise is low, pressure is low; Extensively apply to air conditioner and various ventilating heat dissipating environment; The design quality of axial-flow windwheel is very big to the efficient and the noise effect of blower fan, and is along with the raising of country to the air-conditioning efficiency, also higher to the fan efficiency requirement of heat transmission; Require the noise of wind wheel low, efficient is high.Axial-flow windwheel is a vital part in air conditioner outdoor machine; Axial-flow windwheel performance quality is bigger to the heat pump performance influence; Axial-flow windwheel and motor is used simultaneously; Effectiveness affects to the complete machine blower fan is also very big, need take into full account the load capacity of the optimum operating speed and the motor of motor, and the axial-flow blower efficient of designing could be better.The design of existing wind wheel in order to alleviate wind wheel weight, reduces the blower fan load; With Blade Design is single circular arc of uniform thickness, and blade profile is without aerofoil profile, though reduced wind wheel weight like this; Alleviated motor machine load; But fan noise increases, and the intensity of wind wheel also weakens, and wind wheel blade is because the insufficient strength easy-rupturing.Therefore, be necessary to do further improvement.
Summary of the invention
The object of the invention aims to provide a kind of high efficiency, noise is low, cost is low, reliability is high axial-flow windwheel, to overcome deficiency of the prior art.
A kind of axial-flow windwheel by this purpose design comprises wheel hub and is installed in several blades on the wheel hub, and blade is done evenly to distribute with the rotating center of wheel hub, and its structure characteristic is that wheel hub is provided with concave surface.
The height of said wheel hub is h, and the height of concave surface is d, and 0.2＜d/h＜0.9.
The top face of said concave surface is α to the terminal surface of line between the rotating center and concave surface to the line angle between the rotating center, 10 °＜α＜150 °; Top face and terminal surface are symmetrical.
The quantity of said concave surface is consistent with the quantity of blade.
Said axial-flow windwheel adopts the macromolecular material molding and forming.
The present invention is owing to design concave surface on the wind wheel wheel hub, the eddy current of leaf root part is reduced in the flow field of the leaf root part that effectively improves, and has reduced the eddy current noise, has alleviated the weight of wind wheel, has reduced the power of motor, improves the blower fan efficiency.Through on the axial-flow windwheel wheel hub, designing concave surface, not only alleviate the weight of whole wind wheel, and reduced the cost of whole wind wheel, the intensity of wind wheel does not weaken simultaneously, satisfies each item test request of wind wheel.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the structural representation of embodiment's wheel hub.
Fig. 3 is the side view of Fig. 2.
Fig. 4 is another structural representation of embodiment of the invention wheel hub.
Among the figure: 1 is blade, and 2 is wheel hub, and 3 is concave surface, and 4 is the top face, and 5 is terminal surface.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Referring to Fig. 1-Fig. 4, a kind of axial-flow windwheel comprises wheel hub 2 and is installed in three blades 1 on the wheel hub 2 that blade 1 evenly distributes with the rotating center of wheel hub 2, and axial-flow windwheel wheel hub 2 is provided with three concave surfaces 3.The external diameter of wind wheel is 405mm, and the diameter of wheel hub 2 is 125mm, and the height h of wheel hub 2 is 44mm, and the height d of concave surface 3 is 18mm, and the top face 4 of concave surface 3 is 40 ° to the terminal surface 5 of line between the rotating center and concave surface 3 to the line angle between the rotating center; Top face 4 is symmetrical with terminal surface 5.Axial-flow windwheel adopts macromolecular material injection molded.Axial-flow windwheel is installed in the outdoor unit of air-conditioning.
In the foregoing description, just listed out typical embodiment, the embodiment that other is easy to expand is as making it meet 0.2＜d/h＜0.9 through the height h of change wheel hub 2 or the height d of concave surface; Perhaps change angle, make it meet 10 °＜α＜150 °; Perhaps change quantity, shape of concave surface 3 etc.; Its purpose all is in order a kind of high efficiency, noise is low, cost is low, reliability is high axial-flow windwheel to be provided, all to belong to the protection category of this claim, repeating no more.
Claims (5)
1. an axial-flow windwheel comprises wheel hub (2) and is installed in several blades (1) on the wheel hub, and blade is done evenly to distribute with the rotating center of wheel hub, it is characterized in that wheel hub is provided with concave surface (3).
2. axial-flow windwheel according to claim 1, the height that it is characterized in that said wheel hub (2) is h, the height of concave surface (3) is d, and 0.2＜d/h＜0.9.
3. axial-flow windwheel according to claim 2, the top face (4) that it is characterized in that said concave surface (3) is α to the terminal surface (5) of line between the rotating center and concave surface to the line angle between the rotating center, 10 °＜α＜150 °; Top face and terminal surface are symmetrical.
4. according to each described axial-flow windwheel of claim 1-3, it is characterized in that the quantity of said concave surface (3) is consistent with the quantity of blade (1).
5. axial-flow windwheel according to claim 4 is characterized in that said axial-flow windwheel adopts the macromolecular material molding and forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100378552A CN102562662A (en) | 2012-02-17 | 2012-02-17 | Axial flow wind wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100378552A CN102562662A (en) | 2012-02-17 | 2012-02-17 | Axial flow wind wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102562662A true CN102562662A (en) | 2012-07-11 |
Family
ID=46408960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100378552A Pending CN102562662A (en) | 2012-02-17 | 2012-02-17 | Axial flow wind wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102562662A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405680A (en) * | 2014-10-27 | 2015-03-11 | 珠海格力电器股份有限公司 | Fan blade as well as fan system and air conditioner system |
| CN107313978A (en) * | 2017-07-26 | 2017-11-03 | 奥克斯空调股份有限公司 | Lightweight low-load axial-flow leaf |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2414236Y (en) * | 2000-03-16 | 2001-01-10 | 海尔集团公司 | Axial-flow fan |
| CN101012839A (en) * | 2007-01-31 | 2007-08-08 | 广东美的电器股份有限公司 | Axial-flow windwheel |
| JP2007255337A (en) * | 2006-03-24 | 2007-10-04 | Mitsubishi Electric Corp | Resin impeller |
| CN201448285U (en) * | 2009-07-17 | 2010-05-05 | 广东顺威精密塑料股份有限公司 | Axial flow fan blade with improved wheel hub |
-
2012
- 2012-02-17 CN CN2012100378552A patent/CN102562662A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2414236Y (en) * | 2000-03-16 | 2001-01-10 | 海尔集团公司 | Axial-flow fan |
| JP2007255337A (en) * | 2006-03-24 | 2007-10-04 | Mitsubishi Electric Corp | Resin impeller |
| CN101012839A (en) * | 2007-01-31 | 2007-08-08 | 广东美的电器股份有限公司 | Axial-flow windwheel |
| CN201448285U (en) * | 2009-07-17 | 2010-05-05 | 广东顺威精密塑料股份有限公司 | Axial flow fan blade with improved wheel hub |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405680A (en) * | 2014-10-27 | 2015-03-11 | 珠海格力电器股份有限公司 | Fan blade as well as fan system and air conditioner system |
| CN107313978A (en) * | 2017-07-26 | 2017-11-03 | 奥克斯空调股份有限公司 | Lightweight low-load axial-flow leaf |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 528311, Guangdong, Foshan Town, Shunde District, Beijiao, 6 beautiful avenue, beautiful headquarters building, B District, 26 - 28 floor Applicant after: MIDEA GROUP Co.,Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Applicant before: Midea Group |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: MEIDI GROUP CO. LTD. TO: MIDEA GROUP CO., LTD. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120711 |