CN105927465B - Magnetically deformable blade of a vertical axis wind turbine - Google Patents
Magnetically deformable blade of a vertical axis wind turbine Download PDFInfo
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- CN105927465B CN105927465B CN201610373382.1A CN201610373382A CN105927465B CN 105927465 B CN105927465 B CN 105927465B CN 201610373382 A CN201610373382 A CN 201610373382A CN 105927465 B CN105927465 B CN 105927465B
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- blade
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- vertical axis
- magnetic part
- axis windmill
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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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- Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The present invention provides a kind of magnetic deformation blade of vertical axis windmill, blade body is internally provided with cavity, the first magnetic part and the second magnetic part are provided on blade cavity inner wall, first magnetic part and the second magnetic part are oppositely arranged and same magnetic pole-face is opposite, and the magnetic force for being generated using magnetic part changes the shape of blade body.Its blade leads to blade pressure surface and the mutual repulsion of suction surface due to the effect of magnetic grade, and blade shape can change with surface pressing and be changed.When pressure face blade surface pressure increases, the inward-facing buckling of blade pressure is at more gentle shape, and since the magnetism effect of repelling each other outwardly protrudes, blade surface radius of curvature increases suction surface.In blade rotation process, pressure face and suction surface replace adaptive change, and blade can more efficiently absorb wind energy, will improve the wind energy utilization for applying the vertical axis windmill of the blade.
Description
Technical field
The present invention relates to a kind of blade of vertical axis wind turbine, and in particular to a kind of vertical axis windmill magnetic deformation blade.
Background technique
Wind energy is a part critically important in renewable energy, and by the great attention of countries in the world, technology gradually tends to
Maturation has huge potential market.Wind energy conversion system is generally divided into horizontal-shaft wind turbine and vertical axis windmill.Vertical axis windmill
It can be widely applied to public illumination, residential households, the large-scale outdoor advertising, telecomm base station, oil field, high speed public affairs of urban central zone
Road overall monitoring system, pleasure-boat and rural distributed cause the concern of more and more scholars for electrical domain in recent years.
Lift-type wind energy conversion system is primarily referred to as Darrieus type wind energy conversion system, is the principal mode of vertical axis windmill, wind energy
Utilization rate is up to 40% or so.The lift acting that Darrieus type wind energy conversion system mainly utilizes blade to generate, blade pass through aerofoil profile table
Lift is generated behind face moves blade.And the Darrieus type wind energy conversion system of H-type is due to light weight, structure is simple and balance is good,
Wind energy utilization with higher and wide application prospect.
Aerodynamics basic principle is taught that: symmetrical airfoil blade, within the scope of certain positive incidence, if aerofoil profile
Pressure face shape is more gentle and suction surface is more raised, then the lift resistance ratio of aerofoil profile is higher.Darrieus type pneumatic equipment bladess are rotating
In the process, pressure face replaces variation with suction surface, can be more if the shape face pressure adaptive of this blade can be made to change
To efficiently absorb wind energy, to improve the wind energy utilization of vertical axis windmill.
Summary of the invention
In order to make the lift that the pressure face shape of vane airfoil profile is more gentle and suction surface is more raised, and increase blade generates, mention
The wind energy utilization of high vertical axis windmill, the present invention provides a kind of vertical axis windmill magnetic deformation blades.
The present invention provides a kind of vertical axis windmill magnetic deformation blades, have the feature that, comprising: blade, packet
Blade body is included, blade body is internally provided with cavity, and cavity has opposite two sides blade inner wall；And it is at least one set of magnetic
Unit, magnet unit have the first magnetic part and the second magnetic part, are separately positioned on blade inner wall, the first magnetic part
It is oppositely arranged with the second magnetic part and same magnetic pole-face is opposite, the magnetic mutual expelling force for being generated using magnetic part changes leaf
The shape of piece ontology.
In vertical axis windmill magnetic deformation blade provided by the invention, it can also have the following features: wherein, the
One magnetic part and the second magnetic part are magnetic strips.
In addition, can also have the following features: it in vertical axis windmill magnetic deformation blade provided by the invention
In, the first magnetic part and the second magnetic part are magnetic coating.
In addition, can also have the following features: it in vertical axis windmill magnetic deformation blade provided by the invention
In, it is additionally provided with complex root crossbeam in cavity, crossbeam is fixedly connected on preceding acies and the trailing edge end of cavity inner wall, and the two of crossbeam
Face is respectively arranged with third magnetic part and the 4th magnetic part, and third magnetic part and the 4th magnetic part are magnetic strips, the
Three magnetic parts and the first magnetic part are oppositely arranged and same magnetic pole-face is opposite, the 4th magnetic part and the second magnetic part phase
To setting and same magnetic pole-face it is opposite.
In addition, can also have the following features: it in vertical axis windmill magnetic deformation blade provided by the invention
In, the longitudinal section of blade body is elongated, and the cross section of blade body is in symmetrical wing.
In addition, can also have the following features: it in vertical axis windmill magnetic deformation blade provided by the invention
In, the longitudinally through blade body of cavity, and both ends penetrate through.
In addition, can also have the following features: it in vertical axis windmill magnetic deformation blade provided by the invention
In, blade further includes two covering lids, is separately positioned on the both ends of blade body.
In addition, can also have the following features: it in vertical axis windmill magnetic deformation blade provided by the invention
In, the material of covering lid is flexible material.
In addition, can also have the following features: it in vertical axis windmill magnetic deformation blade provided by the invention
In, the material of blade body uses to be made with a thickness of the flexible material of 5mm-30mm.
In addition, can also have the following features: it in vertical axis windmill magnetic deformation blade provided by the invention
In, the longitudinal section of blade body is elongated, and the cross section of blade body is in asymmetric wing.
The action and effect of invention
The present invention provides a kind of magnetic deformation blade that can be applied to vertical axis windmill, and blade body is internally provided with sky
Chamber is provided with magnet unit on blade cavity inner wall, which includes the first magnetic part and the second magnetic part, the
One magnetic part and the second magnetic part are oppositely arranged and same magnetic pole-face is opposite, and the magnetic force for being generated using magnetic part is changed
Become the shape of blade body.Its blade leads to blade pressure surface and the mutual repulsion of suction surface, blade-shaped due to the effect of magnetic grade
Shape can change with surface pressing and be changed.When pressure face blade surface pressure increases, the inward-facing buckling of blade pressure is at relatively flat
Slow shape, since the magnetism effect of repelling each other outwardly protrudes, blade surface radius of curvature increases suction surface.In blade rotation process
In, pressure face and suction surface replace adaptive change, and blade can more efficiently absorb wind energy, using the vertical shaft wind of the blade
The wind energy utilization of power machine can effectively improve, and be very suitable to this vertical axis windmill with magnetic blade.
Detailed description of the invention
Fig. 1 is vertical axis windmill magnetic deformation leaf appearance and cross sectional view in the embodiment of the present invention；
Fig. 2 is blade inner body wall cavity perspective diagram in the embodiment of the present invention；
Fig. 3 is that single side installs magnetic stripe perspective diagram in blade inner body wall in the embodiment of the present invention；
Fig. 4 is that blade profile changes schematic diagram under the action of the wind；And
Fig. 5 is vertical axis windmill magnetic deformation leaf cross-section cross-sectional profile variation signal in the embodiment of the present invention
Figure.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
Example combination attached drawing is applied to be specifically addressed vertical axis windmill magnetic deformation blade of the present invention.
Fig. 1 is magnetic deformation leaf appearance and cross sectional view in the embodiment of the present invention.
As shown in Figure 1, vertical axis windmill magnetic deformation blade 100 includes blade 10 and magnet unit 20.
Blade 10 includes: 11,2 covering lids 12, complex root crossbeams 13 of blade body.
Fig. 2 is blade inner body wall cavity perspective diagram in the embodiment of the present invention.
As shown in Fig. 2, the longitudinal section of blade body 11 is elongated, the cross section of blade body is in symmetrical wing, blade
Ontology 11 is internally provided with cavity 11a, and cavity has opposite two sides blade inner wall 11b, 11c, and forms the leading edge of cavity 11a
11d and trailing edge end 11e, cavity 11a is held to penetrate through blade body 11, and both ends penetrate through, in embodiment, 11 length of blade body is
3m, the material of blade body 11 uses to be made with a thickness of the flexible material of 5mm-30mm.
Covering lid 12, is separately positioned on the both ends of blade body 11, and the material of covering lid 12 uses flexible material.
Crossbeam 13, is additionally provided with complex root crossbeam in cavity, crossbeam be fixedly connected on 11 inner wall of cavity preceding acies 11d and
Trailing edge end 11e, in embodiment, crossbeam quantity is 7, and the material of crossbeam uses metal.
Fig. 3 is that single side installs magnetic stripe perspective diagram in blade inner body wall in the embodiment of the present invention；
As shown in figure 3, magnet unit 20 includes complex root magnetic strips 21, magnetic strips 21 are bonded in blade body inner wall 11b
On.
As shown in Figure 1, complex root magnetic strips 21 are oppositely arranged and same magnetic pole-face is opposite, it is glued respectively in blade body
On wall and crossbeam.
Fig. 4 is that blade profile changes schematic diagram under the action of the wind.
As shown in figure 4, under airflow function, the situation of change that leaf cross-section shape occurs in different location, air-flow side
For from left to right, at position 1, blade pressure surface concaves, suction surface convex in Xiang Tu, when blade rotates 180 ° in place
When setting 3, blade pressure surface becomes suction surface convex, and suction surface becomes pressure face and concaves.
Vertical axis windmill magnetic deformation blade working principle are as follows:
Fig. 5 is that magnetic deformation blade profile changes schematic diagram in the embodiment of the present invention.
As shown in figure 5, when blade is among airflow field, due to leading to blade outer surface stress not by airflow function
Together, pressure face is recessed inwardly by air-flow high pressure, becomes flat since the magnetic effect of repelling each other is recessed inwardly, at this time blade pressure
Face stress maximum is mobile to suction surface, and suction surface is formed a kind of with good since the magnetic effect of repelling each other becomes more to protrude
The adaptive deformed vanes of good aeroperformance, when wind direction difference, the pressure face and suction surface of blade will change automatically, can be compared with
Increase substantially wind energy utilization and acting ability.
The action and effect of embodiment
The present invention provides a kind of magnetic deformation blade that can be applied to vertical axis windmill, and the longitudinal section of blade body is length
Bar shaped, the cross section of blade body is symmetrical wing, and blade body is internally provided with cavity, and the material of blade body, which uses, to be had
Certain thickness flexible material is provided with complex root magnetic strips on blade cavity inner wall, and magnetic strips are oppositely arranged and same magnetic
Pole-face is opposite, and fixation is bonded on blade cavity inner wall, and the magnetic force for being generated using magnetic part changes the outer of blade body
Shape.Since magnetic strips are cheap, buying is convenient, while magnetic strips and blade cavity inner wall bond operation simple process, can mention
High working efficiency, therefore, the embodiment of the present invention have the advantages that reduce at low cost.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.
Claims (10)
1. a kind of vertical axis windmill magnetic deformation blade comprising:
Blade, including blade body, the blade body are internally provided with cavity, and the cavity has in opposite two sides blade
Wall；And
At least one set of magnet unit, the magnet unit have the first magnetic part and the second magnetic part, are separately positioned on institute
It states on blade inner wall, first magnetic part and second magnetic part is oppositely arranged and same magnetic pole-face is opposite is used for
Change the shape of the blade body using the magnetic mutual expelling force that the magnetic part generates,
Wherein, the blade body is made of flexible material.
2. vertical axis windmill magnetic deformation blade according to claim 1, it is characterised in that:
Wherein, first magnetic part and the second magnetic part are magnetic strips.
3. vertical axis windmill magnetic deformation blade according to claim 1, it is characterised in that:
Wherein, first magnetic part and the second magnetic part are magnetic coating.
4. vertical axis windmill magnetic deformation blade according to claim 1, it is characterised in that:
Wherein, complex root crossbeam is additionally provided in the cavity, the crossbeam is fixedly connected on the leading edge of the cavity inner wall
End and trailing edge end,
The two sides of the crossbeam is respectively arranged with third magnetic part and the 4th magnetic part, the third magnetic part and described
4th magnetic part is magnetic strips,
The third magnetic part and first magnetic part are oppositely arranged and same magnetic pole-face is opposite, the 4th magnetic portion
Part and second magnetic part are oppositely arranged and same magnetic pole-face is opposite.
5. vertical axis windmill magnetic deformation blade according to claim 1, it is characterised in that:
Wherein, the longitudinal section of the blade body is elongated, and the cross section of the blade body is in symmetrical wing.
6. vertical axis windmill magnetic deformation blade according to claim 1, it is characterised in that:
Wherein, the longitudinally through blade body of the cavity, and both ends penetrate through.
7. vertical axis windmill magnetic deformation blade according to claim 1, it is characterised in that:
Wherein, the blade further includes two covering lids, is separately positioned on the both ends of the blade body.
8. vertical axis windmill magnetic deformation blade according to claim 7, it is characterised in that:
Wherein, the material of the covering lid is flexible material.
9. vertical axis windmill magnetic deformation blade according to claim 6, it is characterised in that:
Wherein, the material of the blade body is used and is made with a thickness of the flexible material of 5mm-30mm.
10. vertical axis windmill magnetic deformation blade according to claim 1, it is characterised in that:
Wherein, the longitudinal section of the blade body is elongated, and the cross section of the blade body is in asymmetric wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373382.1A CN105927465B (en) | 2016-05-31 | 2016-05-31 | Magnetically deformable blade of a vertical axis wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373382.1A CN105927465B (en) | 2016-05-31 | 2016-05-31 | Magnetically deformable blade of a vertical axis wind turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927465A CN105927465A (en) | 2016-09-07 |
| CN105927465B true CN105927465B (en) | 2019-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610373382.1A Expired - Fee Related CN105927465B (en) | 2016-05-31 | 2016-05-31 | Magnetically deformable blade of a vertical axis wind turbine |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751182B (en) * | 2019-03-19 | 2023-11-07 | 上海理工大学 | Novel mechanical active deformation blade for vertical axis wind turbine |
| CN110027706B (en) * | 2019-04-04 | 2023-06-06 | 上海理工大学 | Novel flapping-wing energy-capturing device and control method for swinging trailing edge |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2468002A1 (en) * | 1979-10-16 | 1981-04-30 | Massimi Pierre | Wind turbine with deformable aerofoil blades - has aerofoil blades mounted vertically with leading edge automatically positioned cam deforming aerofoil section to reduce losses |
| DE19962454A1 (en) * | 1999-12-22 | 2001-07-05 | Aerodyn Eng Gmbh | Rotor blade for wind turbines |
| CN201367979Y (en) * | 2009-03-16 | 2009-12-23 | 深圳市艾飞盛科技有限公司 | Special wind-light supplementary wind-driven generator and blade thereof |
| CN105293068A (en) * | 2015-10-27 | 2016-02-03 | 深圳市华星光电技术有限公司 | Substrate attracting device |
-
2016
- 2016-05-31 CN CN201610373382.1A patent/CN105927465B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2468002A1 (en) * | 1979-10-16 | 1981-04-30 | Massimi Pierre | Wind turbine with deformable aerofoil blades - has aerofoil blades mounted vertically with leading edge automatically positioned cam deforming aerofoil section to reduce losses |
| DE19962454A1 (en) * | 1999-12-22 | 2001-07-05 | Aerodyn Eng Gmbh | Rotor blade for wind turbines |
| CN201367979Y (en) * | 2009-03-16 | 2009-12-23 | 深圳市艾飞盛科技有限公司 | Special wind-light supplementary wind-driven generator and blade thereof |
| CN105293068A (en) * | 2015-10-27 | 2016-02-03 | 深圳市华星光电技术有限公司 | Substrate attracting device |
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| CN105927465A (en) | 2016-09-07 |
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Granted publication date: 20190604 |