CN102588209A - Vertical-axis fan blade - Google Patents
Vertical-axis fan blade Download PDFInfo
- Publication number
- CN102588209A CN102588209A CN201210037882XA CN201210037882A CN102588209A CN 102588209 A CN102588209 A CN 102588209A CN 201210037882X A CN201210037882X A CN 201210037882XA CN 201210037882 A CN201210037882 A CN 201210037882A CN 102588209 A CN102588209 A CN 102588209A
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- China
- Prior art keywords
- fan blade
- blade
- wind
- vertical shaft
- cushion block
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
The invention relates to a vertical-axis fan blade which is characterized by comprising an upper fan blade and a lower fan blade formed by bending a plate respectively, wherein the section of the upper fan blade is in a shape formed by connecting a big arc and a small arc, and the centers of the two arcs are located on the same side of the arc line; the big and small arcs are connected to form a hook shape; the section of the lower blade is in a shape of closed egg shell; the lower blade is located in the hook and fixed on the big arc; and a clearance for ventilation is arranged between the big fan blade and the big arc. In the vertical-axis fan blade provided by the invention, since the upper fan blade, the lower fan blade and a cushion block are fixed by a pulling rivet, a clearance is formed between the upper and lower fan blades; and when wind flows through the clearance, the blade surface of the lower fan blade forms a new wind receiving surface so that the wind sweeping surface is increased on the fan blade with the same chord length and the wind utilization rate is improved.
Description
Technical field
The present invention relates to the wind power plant field, particularly relate to a kind of vertical shaft fan blade.
Background technique
The principle of wind-power electricity generation is to utilize wind-force to drive the air vane rotation, sees through the speed lifting of booster engine with rotation again, impels generator for electricity generation.Wind-power electricity generation forms one upsurge just in the world, because wind-power electricity generation does not have fuel problem, also can not produce radiation or atmospheric pollution.Wind-driven generator by head, turn, empennage, blade form.Each part is all very important, and the each several part function is: blade is used for accepting wind-force and transfers electric energy to through head; Thereby empennage makes blade obtain maximum wind energy facing to the direction of the wind comes from all the time; Turn head is rotated to realize the function of empennage adjustment direction neatly; The rotor of head is a permanent magnet, and the staor winding cutting magnetic line produces electric energy.Blade is used for catching wind energy, so the efficient of wind-driven generator is with the direct relation that is designed with of blade.As the most conventional vertical axis aerogenerator; Existing blade technology all concentrates on the material of blade or on the angle of attachment of blade; To utilize wind energy to greatest extent; Also have no talent its emphasis of design is transferred on the structure of fan blade, existing blade structure design is simple single blade type, and wind energy utilization is not very high.
Summary of the invention
To the deficiency in above-mentioned field, the present invention has carried out brand-new design to the shape and the structure of fan blade, forms the combination type vertical axis fan blade, can be used for the vertical axis aerogenerator group, and wind energy utilization significantly improves.
The vertical shaft fan blade; It is characterized in that: comprise respectively bending the last fan blade and following fan blade that forms by sheet material; The said sectional shape of going up fan blade is positioned at the homonymy of camber line for the center of circle of the orthodrome that links to each other and a little circular arc and two circular arcs, and large and small circular arc links to each other and forms hook solid; The sectional shape of said fan blade down is the chorion of sealing; Said fan blade down is positioned at crotch and is fixed on the orthodrome, and the gap of air ventilation is arranged between following fan blade and the orthodrome.
Between the said upper and lower fan blade one or more cushion blocks are arranged, upper and lower fan blade is fixed together through pulling rivet.
Said cushion block has a plurality of, and the compartment aligning.
Said pulling rivet passes fan blade and following fan blade, and at the chorion internal fixation that descends fan blade.
The place, pulling rivet fixed position of said fan blade down is provided with stiffening rib, and said stiffening rib is positioned at the chorion inboard.
Vertical shaft fan blade of the present invention is combined by upper and lower fan blade, and behind the last fan blade wind-engaging of hook solid, wind is blown over the gap along the internal surface of orthodrome, is purged to down on fan blade back half side again, has increased blowing area, has improved the utilization ratio of wind.
The present invention is fixed together upper and lower fan blade through pulling rivet; The centre is added with cushion block; The size in the thickness decision gap of cushion block, the number of cushion block is decided by the length of upper and lower fan blade, as adopts a cushion block; Can the upper and lower fan blade of ratio of cushion block design is short slightly, can form the gap of air ventilation at the cushion block two ends; As adopt a plurality of cushion blocks, and can at interval certain distance between the cushion block, can form the gap of air ventilation equally.
Because pulling rivet is to be fixed on down in the chorion of fan blade, the chorion wall is stressed bigger, therefore locates to be provided with stiffening rib in the fixed position.
Vertical shaft fan blade of the present invention; Fix with pulling rivet by last fan blade, following fan blade and cushion block; Between upper and lower fan blade, form the gap like this; When this gap is crossed in wind, form a new wind-receiving face on the blade face of following fan blade, thereby having been increased, it sweeps the utilization ratio that the wind face has strengthened wind on the fan blade of equal chord length.
Description of drawings
Fig. 1 plan view of the present invention,
B is to view among Fig. 2 Fig. 1,
C-C sectional view among Fig. 3 Fig. 2,
The last fan blade sectional view of Fig. 4,
Fan blade sectional view under Fig. 5,
Fig. 6 cushion block plan view,
Fig. 7 cushion block plan view,
The fan blade three-dimensional view that Fig. 8 the present invention is assembled into,
The fan blade plan view that Fig. 9 the present invention is assembled into,
Figure 10 contrasts the fan blade three-dimensional view that fan blade is assembled into,
Figure 11 contrasts the fan blade plan view that fan blade is assembled into,
Each label is listed as follows among the figure:
The last fan blade of 1-, fan blade under the 2-, the 3-cushion block, the 4-orthodrome, the little circular arc of 5-, the 6-pulling rivet, the 7-gap, the 8-stiffening rib, 9-vertical shaft fan blade, 10-contrasts fan blade,
The upper and lower fan blade length of L-, H-gap width, A-arc length.
Embodiment
The vertical shaft fan blade; It is characterized in that: comprise respectively bending the last fan blade 1 and following fan blade 2 that forms by sheet material; The said sectional shape of going up fan blade 1 is positioned at the homonymy of camber line for the center of circle of the orthodrome 4 that links to each other and a roundlet arc 5 and two circular arcs, large and small circular arc 4, the 5 formation hook solid that link to each other; The sectional shape of said fan blade 2 down is the chorion of sealing; Said down fan blade 2 is positioned at crotch and is fixed on the orthodrome 4, said upper and lower fan blade 1, one or more cushion blocks 3 is arranged between 2, through pulling rivet 6 upper and lower fan blade 1,2 is fixed together, and between time fan blade 2 and the orthodrome 4 gap 7 of air ventilation is arranged.
The thickness of cushion block 3 decision gap width H, the number of cushion block 3 is decided by upper and lower fan blade length L, as adopts a cushion block 3, can the upper and lower fan blade of the ratio of cushion block 3 designs 1,2 is short slightly, can form the gap 7 of air ventilation at cushion block 3 two ends; As adopt a plurality of cushion blocks 3, and can at interval certain distance between the cushion block 3, can form the gap 7 of air ventilation equally.
Because pulling rivet 6 is to be fixed on down in the chorion of fan blade 2, the chorion wall is stressed bigger, therefore locates to be provided with stiffening rib 8 in the fixed position.
Vertical shaft fan blade of the present invention; Fixing by last fan blade, following fan blade 1,2 and cushion block 3 usefulness pulling rivets 6; Like this at upper and lower fan blade 1, form gap 7 between 2; When this gap 7 is crossed in wind, form a new wind-receiving face on the blade face of following fan blade 2, thereby having been increased, it sweeps the utilization ratio that the wind face has strengthened wind on the fan blade of equal chord length.
Testing property:
Adopt identical 100W motor band fan blade of the present invention (Fig. 8 and Fig. 9 are seen in the assembling of fan blade, adopt vertical shaft fan blade 9 of the present invention, and with commercially available conventional fan blade (Figure 10 and Figure 11 are seen in the assembling of fan blade, adopt contrast fan blade 10), tangible test parameter contrast is like following table:
| The experiment fan blade | The fan blade chord length | Fan blade length | The fan blade diameter | The fan blade material | Fan blade weight | Start wind speed | Fan blade quantity | Rated power |
| The present invention | 187mm | 1100mm | 1000mm | Aluminum alloy | 2.6Kg | 2.8m/ |
4 | 100W |
| The contrast fan blade | 220mm | 1400mm | 1200mm | Resin | 3.4Kg | 3.4m/s | 5 | 100W |
See that from the data of last table fan blade of the present invention wants high to the utilization ratio of wind than the existing conventional fan blade.
Claims (5)
1. vertical shaft fan blade; It is characterized in that: comprise respectively bending the last fan blade and following fan blade that forms by sheet material; The said sectional shape of going up fan blade is positioned at the homonymy of camber line for the center of circle of the orthodrome that links to each other and a little circular arc and two circular arcs, and large and small circular arc links to each other and forms hook solid; The sectional shape of said fan blade down is the chorion of sealing; Said fan blade down is positioned at crotch and is fixed on the orthodrome, and the gap of air ventilation is arranged between following fan blade and the orthodrome.
2. vertical shaft fan blade according to claim 1 is characterized in that: between the said upper and lower fan blade one or more cushion blocks are arranged, through pulling rivet upper and lower fan blade is fixed together.
3. vertical shaft fan blade according to claim 2 is characterized in that: said cushion block has a plurality of, and the compartment aligning.
4. vertical shaft fan blade according to claim 2 is characterized in that: said pulling rivet passes fan blade and following fan blade, and at the chorion internal fixation that descends fan blade.
5. vertical shaft fan blade according to claim 4 is characterized in that: the place, pulling rivet fixed position of said fan blade down is provided with stiffening rib, and said stiffening rib is positioned at the chorion inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210037882.XA CN102588209B (en) | 2012-02-17 | 2012-02-17 | Vertical-axis fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210037882.XA CN102588209B (en) | 2012-02-17 | 2012-02-17 | Vertical-axis fan blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102588209A true CN102588209A (en) | 2012-07-18 |
| CN102588209B CN102588209B (en) | 2014-03-19 |
Family
ID=46477327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210037882.XA Expired - Fee Related CN102588209B (en) | 2012-02-17 | 2012-02-17 | Vertical-axis fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102588209B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900632A (en) * | 2012-11-08 | 2013-01-30 | 浙江风光新能源科技有限公司 | Wind driven generator blade device with wind scooper |
| PL442572A1 (en) * | 2022-10-19 | 2024-01-03 | Instytut Maszyn Przepływowych Im. Roberta Szewalskiego Polskiej Akademii Nauk | Self-starting wind turbine with a vertical axis of rotation |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639461A (en) * | 2002-09-20 | 2005-07-13 | 野口常夫 | Windmill for wind power generation |
| JP2005248935A (en) * | 2004-03-03 | 2005-09-15 | Haruo Fujiwara | Windmill for wind power generation |
| JP2007046559A (en) * | 2005-08-11 | 2007-02-22 | Kikukawa Kogyo Kk | Blade for wind power generator |
| CN201187408Y (en) * | 2008-01-16 | 2009-01-28 | 闻国建 | Wind power generation plant with choke plate |
| WO2010035970A2 (en) * | 2008-09-24 | 2010-04-01 | Kim Sang-Hun | Blade for wind power generator |
| CN201513287U (en) * | 2009-09-28 | 2010-06-23 | 泰州市德锋数控机床有限公司 | Combination type blade for vertical axis wind turbine |
| CN202065123U (en) * | 2011-06-03 | 2011-12-07 | 秦皇岛风日和科技有限公司 | Combined efficient vertical axis wind driven generator |
| CN202417817U (en) * | 2012-02-17 | 2012-09-05 | 北京石光龙腾风力科技发展有限公司 | Vertical-shaft fan blade |
-
2012
- 2012-02-17 CN CN201210037882.XA patent/CN102588209B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639461A (en) * | 2002-09-20 | 2005-07-13 | 野口常夫 | Windmill for wind power generation |
| CN100347440C (en) * | 2002-09-20 | 2007-11-07 | 野口常夫 | Windmill for wind power generation |
| JP2005248935A (en) * | 2004-03-03 | 2005-09-15 | Haruo Fujiwara | Windmill for wind power generation |
| JP2007046559A (en) * | 2005-08-11 | 2007-02-22 | Kikukawa Kogyo Kk | Blade for wind power generator |
| CN201187408Y (en) * | 2008-01-16 | 2009-01-28 | 闻国建 | Wind power generation plant with choke plate |
| WO2010035970A2 (en) * | 2008-09-24 | 2010-04-01 | Kim Sang-Hun | Blade for wind power generator |
| CN201513287U (en) * | 2009-09-28 | 2010-06-23 | 泰州市德锋数控机床有限公司 | Combination type blade for vertical axis wind turbine |
| CN202065123U (en) * | 2011-06-03 | 2011-12-07 | 秦皇岛风日和科技有限公司 | Combined efficient vertical axis wind driven generator |
| CN202417817U (en) * | 2012-02-17 | 2012-09-05 | 北京石光龙腾风力科技发展有限公司 | Vertical-shaft fan blade |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900632A (en) * | 2012-11-08 | 2013-01-30 | 浙江风光新能源科技有限公司 | Wind driven generator blade device with wind scooper |
| PL442572A1 (en) * | 2022-10-19 | 2024-01-03 | Instytut Maszyn Przepływowych Im. Roberta Szewalskiego Polskiej Akademii Nauk | Self-starting wind turbine with a vertical axis of rotation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102588209B (en) | 2014-03-19 |
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