CN102536900A - Axial flow wind wheel - Google Patents
Axial flow wind wheel Download PDFInfo
- Publication number
- CN102536900A CN102536900A CN2012100378548A CN201210037854A CN102536900A CN 102536900 A CN102536900 A CN 102536900A CN 2012100378548 A CN2012100378548 A CN 2012100378548A CN 201210037854 A CN201210037854 A CN 201210037854A CN 102536900 A CN102536900 A CN 102536900A
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- concave surface
- axial
- blade
- wind wheel
- flow windwheel
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- 239000000463 material Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The axial flow wind wheel includes hub and blades mounted on the hub, and the blades are uniformly distributed in the rotation center of the hub and features that the suction surface of the blades has concave surface. The area of the concave surface is S, S is more than 70mm2. The thickness of the blade at the edge of the concave surface is H, the depth of the concave surface is H1, and H1/H is more than 0.05 and less than 0.9. The shape of the concave surface is triangular, trapezoidal, polygonal, circular or elliptical or any combination thereof. The concave surface is designed on the suction surface of the wind wheel blade, so that the pressure distribution of a flow field in the wind wheel is effectively improved, the vortex of the suction surface of the blade is reduced, the vortex loss is reduced, the vortex noise is reduced, and the sound of the whole fan becomes soft. The concave surface is designed on the suction surface of the wind wheel blade, so that the weight of the wind wheel is reduced, the power of the motor is reduced, and the efficiency of the fan is improved.
Description
Technical field
The present invention relates to a kind of axial-flow windwheel, particularly a kind of axial-flow windwheel that is used for air conditioner outdoor machine belongs to the improvement technology of the axial-flow windwheel of air conditioner outdoor machine.
Background technique
Axial-flow windwheel is because air quantity is big, noise is low, pressure is low, extensively applies to air conditioner and various ventilating heat dissipating environment, and the design quality of axial-flow windwheel is very big to the efficient and the noise effect of blower fan.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 simple and reasonable, 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 includes 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 the suction surface of blade is provided with concave surface.
The area of said concave surface is S, S＞70mm
2
The vane thickness of said concave edge is H, and the concave surface degree of depth is H1,0.05＜H1/H＜0.9.
Said concave surface is curved surface or plane; The quantity of concave surface is more than one.
Said concave surface be shaped as triangle or trapezoidal or polygonal or circular or oval or their arbitrary combination.
Said axial-flow windwheel adopts the macromolecular material molding and forming.
The present invention has effectively improved the inner fluid field pressure of wind wheel and has distributed owing on the suction surface of wind wheel blade, design concave surface, has reduced the eddy current of blade suction surface, reduces eddy current loss, has reduced the eddy current noise, and the sound of whole blower fan becomes soft.On the suction surface of wind wheel blade, design concave surface, also alleviated the weight of wind wheel, reduced the power of motor, promote fan efficiency.
Description of drawings
Fig. 1 is axial-flow windwheel one embodiment's of the present invention structural representation.
Fig. 2 has the leaf sectional view of concave curved surface for the axial-flow windwheel blade.
Fig. 3 has the leaf sectional view of conocave plane for the axial-flow windwheel blade.
Fig. 4 has the leaf sectional view of concave curved surface and conocave plane for the axial-flow windwheel blade.
Fig. 5 is second embodiment's a structural representation.
Fig. 6 is the 3rd embodiment's a structural representation.
Fig. 7 is the 4th embodiment's a structural representation.
Fig. 8 is the 5th embodiment's a structural representation.
Among the figure: 1 is blade, and 2 is wheel hub, and 3 is suction surface, and 4 is concave surface.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
First embodiment
Referring to Fig. 1, a kind of axial-flow windwheel; Include wheel hub 2 and be installed in several blades 1 on the wheel hub 2, blade 1 is done evenly to distribute with the rotating center of wheel hub 2, and the suction surface 3 of blade 1 is provided with the trapezoidal concave surface 4 of two different sizes; And concave surface 4 is a curved surface, and the area of concave curved surface is S, S＞70mm2.Blade 1 thickness at concave surface 4 edges is H, and concave surface 4 degree of depth are H1,0.05＜H1/H＜0.9, and the external diameter of wind wheel is 405mm.Axial-flow windwheel adopts the macromolecular material molding and forming, is installed in the air conditioner outdoor machine.
Second embodiment
Referring to Fig. 5, the present embodiment and first embodiment's difference is: the suction surface 3 of axial-flow windwheel blade 1 is provided with a trapezoidal concave surface 4, and other does not state part, with first embodiment.
The 3rd embodiment
Referring to Fig. 6, the present embodiment and first embodiment's difference is: the suction surface 3 of axial-flow windwheel blade 1 is provided with two trapezoidal concave surfaces 4 and a triangular shaped recess surface 4.Other does not state part, with first embodiment.
The 4th embodiment
Referring to Fig. 7, the present embodiment and first embodiment's difference is: the suction surface 3 of axial-flow windwheel blade 1 is provided with a trapezoidal concave surface 4 and an oval concave surface 4.Other does not state part, with first embodiment.
The 5th embodiment
Referring to Fig. 8, present embodiment is with first embodiment's difference: the suction surface 3 of axial-flow windwheel blade 1 is provided with circular concave surface 4 and trapezoidal concave surface 4 of three different sizes.Other does not state part, with first embodiment.
In the foregoing description, just listed out typical embodiment, the embodiment that other is easy to expand adopts the different conocave planes and/or the collocation of concave curved surface like concave surface among the embodiment 4, like Fig. 2-shown in Figure 4; The shape of change concave surface 4, quantity 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 (6)
1. an axial-flow windwheel includes 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 the suction surface (3) of blade is provided with concave surface (4).
2. axial-flow windwheel according to claim 1, the area that it is characterized in that said concave surface (4) is S, S＞70mm
2
3. axial-flow windwheel according to claim 1 is characterized in that blade (1) thickness at said concave surface (4) edge is H, and the concave surface degree of depth is H1,0.05＜H1/H＜0.9.
4. according to each described axial-flow windwheel of claim 1-3, it is characterized in that said concave surface (4) is curved surface or plane; The quantity of concave surface is more than one.
5. axial-flow windwheel according to claim 4, what it is characterized in that said concave surface (4) is shaped as triangle or trapezoidal or polygonal or circular or oval or their arbitrary combination.
6. axial-flow windwheel according to claim 5 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 |
|---|---|---|---|
| CN2012100378548A CN102536900A (en) | 2012-02-17 | 2012-02-17 | Axial flow wind wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100378548A CN102536900A (en) | 2012-02-17 | 2012-02-17 | Axial flow wind wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102536900A true CN102536900A (en) | 2012-07-04 |
Family
ID=46344634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100378548A Pending CN102536900A (en) | 2012-02-17 | 2012-02-17 | Axial flow wind wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102536900A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773167A (en) * | 2012-07-06 | 2012-11-14 | 广东美的电器股份有限公司 | Inclined flow wind wheel, manufacturing method of inclined flow wind wheel and air processing device |
| CN106762829A (en) * | 2017-02-07 | 2017-05-31 | 珠海格力电器股份有限公司 | Blade, impeller and blower fan for impeller |
| CN108869394A (en) * | 2018-09-14 | 2018-11-23 | 广东美的制冷设备有限公司 | Axial-flow windwheel and air conditioner |
| WO2018232838A1 (en) * | 2017-06-23 | 2018-12-27 | 广东美的制冷设备有限公司 | Wind wheel, fan and refrigeration equipment |
| CN109763998A (en) * | 2019-03-29 | 2019-05-17 | 广东美的制冷设备有限公司 | Axial-flow windwheel, fan assembly and air conditioner |
| CN112049819A (en) * | 2020-08-31 | 2020-12-08 | 青岛海尔空调电子有限公司 | Wind wheel, fan and air conditioner outdoor unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0732505A1 (en) * | 1995-03-17 | 1996-09-18 | Research Institute Of Advanced Material Gas-Generator | Rotor blades for axial flow compressor |
| CN2864168Y (en) * | 2005-12-26 | 2007-01-31 | 海信集团有限公司 | Tube-axial fan |
| CN2934683Y (en) * | 2006-08-07 | 2007-08-15 | 海信集团有限公司 | Axial-flow fan of air-conditioner |
| CN201436402U (en) * | 2009-06-08 | 2010-04-07 | 珠海格力电器股份有限公司 | Propeller fan |
-
2012
- 2012-02-17 CN CN2012100378548A patent/CN102536900A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0732505A1 (en) * | 1995-03-17 | 1996-09-18 | Research Institute Of Advanced Material Gas-Generator | Rotor blades for axial flow compressor |
| CN2864168Y (en) * | 2005-12-26 | 2007-01-31 | 海信集团有限公司 | Tube-axial fan |
| CN2934683Y (en) * | 2006-08-07 | 2007-08-15 | 海信集团有限公司 | Axial-flow fan of air-conditioner |
| CN201436402U (en) * | 2009-06-08 | 2010-04-07 | 珠海格力电器股份有限公司 | Propeller fan |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773167A (en) * | 2012-07-06 | 2012-11-14 | 广东美的电器股份有限公司 | Inclined flow wind wheel, manufacturing method of inclined flow wind wheel and air processing device |
| CN102773167B (en) * | 2012-07-06 | 2015-07-15 | 美的集团股份有限公司 | Inclined flow wind wheel, manufacturing method of inclined flow wind wheel and air processing device |
| CN106762829A (en) * | 2017-02-07 | 2017-05-31 | 珠海格力电器股份有限公司 | Blade, impeller and blower fan for impeller |
| CN106762829B (en) * | 2017-02-07 | 2023-10-31 | 珠海格力电器股份有限公司 | Blade for impeller, impeller and fan |
| WO2018232838A1 (en) * | 2017-06-23 | 2018-12-27 | 广东美的制冷设备有限公司 | Wind wheel, fan and refrigeration equipment |
| CN108869394A (en) * | 2018-09-14 | 2018-11-23 | 广东美的制冷设备有限公司 | Axial-flow windwheel and air conditioner |
| CN108869394B (en) * | 2018-09-14 | 2024-06-25 | 广东美的制冷设备有限公司 | Axial flow wind wheel and air conditioner |
| CN109763998A (en) * | 2019-03-29 | 2019-05-17 | 广东美的制冷设备有限公司 | Axial-flow windwheel, fan assembly and air conditioner |
| CN109763998B (en) * | 2019-03-29 | 2020-07-28 | 广东美的制冷设备有限公司 | Axial flow wind wheel, fan assembly and air conditioner |
| CN112049819A (en) * | 2020-08-31 | 2020-12-08 | 青岛海尔空调电子有限公司 | Wind wheel, fan and air conditioner outdoor unit |
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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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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: 20120704 |