CN105927465A - Magnetic deformation blade of vertical axis wind turbine - Google Patents
Magnetic deformation blade of vertical axis wind turbine Download PDFInfo
- Publication number
- CN105927465A CN105927465A CN201610373382.1A CN201610373382A CN105927465A CN 105927465 A CN105927465 A CN 105927465A CN 201610373382 A CN201610373382 A CN 201610373382A CN 105927465 A CN105927465 A CN 105927465A
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- CN
- China
- Prior art keywords
- blade
- magnetic
- vertical axis
- magnetic part
- axis windmill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
- F05B2240/311—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape flexible or elastic
-
- 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 invention provides a magnetic deformation blade of a vertical axis wind turbine. A cavity is formed in a blade body. A first magnetic component and a second magnetic component are arranged on the inner wall of the cavity of the blade oppositely, the identical magnetic poles of the first magnetic component and the second magnetic component are opposite, and the shape of the blade body is changed by using the magnetic force generated by the magnetic components. According to the blade, due to the action of the magnetic poles, a pressure surface and a suction surface of the blade repel each other, and the shape of the blade changes along with surface pressure change. When the pressure on the pressure surface of the blade is increased, the pressure surface of the blade is pressed inwards to become a relatively gentle shape, the suction surface protrudes outwards due to the magnetic repulsion action, and the curvature radius of the surfaces of the blade is increased. In the rotation process of the blade, the pressure surface and the suction surface change alternately in a self-adaptation mode, the blade can absorb wind energy more efficiently, and the wind energy utilization rate of the vertical axis wind turbine using the blade is improved.
Description
Technical field
The present invention relates to a kind of blade of vertical axis wind turbine, be specifically related to a kind of vertical axis windmill
Magnetic deformation blade.
Background technology
Wind energy is a part critically important in regenerative resource, by the height weight of countries in the world
Depending on, technology progressively tends to ripe, has huge potential market.Wind energy conversion system is generally divided into level
Axle wind energy conversion system and vertical axis windmill.Vertical axis windmill can be widely applied to urban central zone
Public illumination, residential households, large-scale outdoor advertising, telecomm base station, oil field, highway
Overall monitoring system, pleasure-boat and rural area distributed, for electrical domain, cause more and more in recent years
The concern of scholar.
Lift-type wind energy conversion system is primarily referred to as Darrieus type wind energy conversion system, is vertical axis windmill
Principal mode, its wind energy utilization has reached about 40%.Darrieus type wind energy conversion system mainly utilizes
The lift acting that blade produces, blade makes blade movement by producing lift after airfoil surface.And
The Darrieus type wind energy conversion system of H type is good due to light weight, simple in construction and balance, has relatively
High wind energy utilization and wide application prospect.
Aerodynamic ultimate principle teaches that: symmetrical airfoil blade, at certain positive incidence
In the range of, if the pressure face shape of aerofoil profile is shallower and suction surface is more protruding, then the liter resistance of aerofoil profile
Ratio is higher.Darrieus type pneumatic equipment blades is in rotary course, and pressure face replaces with suction surface
Change, if the shape face pressure adaptive of this blade can be made to change, then can be highly efficient
Ground absorbs wind energy, thus improves the wind energy utilization of vertical axis windmill.
Summary of the invention
In order to the pressure face shape making vane airfoil profile is shallower and suction surface is more protruding, increase blade
The lift produced, improves the wind energy utilization of vertical axis windmill, the invention provides a kind of hanging down
D-axis wind energy conversion system magnetic deformation blade.
The invention provides a kind of vertical axis windmill magnetic deformation blade, there is such spy
Levy, including: blade, including blade body, blade body is internally provided with cavity, and cavity has
There is relative two sides blade inwall；And least one set magnet unit, magnet unit has first
Magnetic part and the second magnetic part, be separately positioned on blade inwall, the first magnetic part and
Second magnetic part is oppositely arranged and same magnetic pole-face is relative, for utilizing magnetic part to produce
Magnetic mutual expelling force changes the profile of blade body.
In the vertical axis windmill magnetic deformation blade that the present invention provides, it is also possible to have so
Feature: wherein, the first magnetic part and the second magnetic part are magnetic strips.
It addition, in the vertical axis windmill magnetic deformation blade that the present invention provides, it is also possible to tool
Having such feature: wherein, the first magnetic part and the second magnetic part are magnetic coating.
It addition, in the vertical axis windmill magnetic deformation blade that the present invention provides, it is also possible to tool
Having such feature: wherein, be additionally provided with complex root crossbeam in cavity, crossbeam is fixing to be connected
At front acies and the trailing edge end of cavity inner wall, the two sides of crossbeam is respectively arranged with the 3rd magnetic part
With the 4th magnetic part, the 3rd magnetic part and the 4th magnetic part are magnetic strips, the 3rd magnetic
Parts and the first magnetic part are oppositely arranged and same magnetic pole-face is relative, the 4th magnetic part and the
Two magnetic parts are oppositely arranged and same magnetic pole-face is relative.
It addition, in the vertical axis windmill magnetic deformation blade that the present invention provides, it is also possible to tool
Having such feature: wherein, the longitudinal section of blade body is elongated, blade body transversal
Face is the most wing.
It addition, in the vertical axis windmill magnetic deformation blade that the present invention provides, it is also possible to tool
Having such feature: wherein, cavity is longitudinally through blade body, and two ends are through.
It addition, in the vertical axis windmill magnetic deformation blade that the present invention provides, it is also possible to tool
Having such feature: wherein, blade also includes two eyelid covering lids, is separately positioned on blade body
Two ends.
It addition, in the vertical axis windmill magnetic deformation blade that the present invention provides, it is also possible to tool
Having such feature: wherein, the material of eyelid covering lid is flexible material.
It addition, in the vertical axis windmill magnetic deformation blade that the present invention provides, it is also possible to tool
Having such feature: wherein, the material of blade body uses thickness to be the soft of 5mm-30mm
Property material is made.
It addition, in the vertical axis windmill magnetic deformation blade that the present invention provides, it is also possible to tool
Having such feature: wherein, the longitudinal section of blade body is elongated, blade body transversal
Face is asymmetric wing.
The effect of invention and effect
The present invention provides a kind of magnetic deformation blade that can be applicable to vertical axis windmill, and blade is originally
Body is internally provided with cavity, is provided with magnet unit on blade cavity inwall, this magnet unit
Including the first magnetic part and the second magnetic part, the first magnetic part and the second magnetic part phase
Relative to setting and same magnetic pole-face, the magnetic force for utilizing magnetic part to produce changes blade originally
The profile of body.Its blade, due to the effect of magnetic level, causes blade pressure surface and suction surface mutual
Repelling, blade shape can change with surface pressing change.When pressure face blade surface pressure increases
Time big, the inside buckling of blade pressure surface becomes shallower shape, and suction surface repels each other work due to magnetic
With outwardly, blade surface radius of curvature increases.In blade rotation process, pressure face and
Suction surface replaces adaptive change, and blade can more efficiently absorb wind energy, applies this blade
The wind energy utilization of vertical axis windmill can effectively improve, and carries magnetic blade the suitableeest
Close this vertical axis windmill.
Accompanying drawing explanation
Fig. 1 is vertical axis windmill magnetic deformation leaf appearance and horizontal stroke in embodiments of the invention
Cross-sectional view；
Fig. 2 is embodiments of the invention Leaf inner body wall cavity perspective diagrams；
Fig. 3 is that in embodiments of the invention Leaf inner body wall, one side installation magnetic stripe perspective is shown
It is intended to；
Fig. 4 is at wind-force effect lower blade profile variation schematic diagram；And
Fig. 5 is that in embodiments of the invention, vertical axis windmill magnetic deformation leaf cross-section cuts open
Facial contour change schematic diagram.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be prone to effect
Understanding and understand, following example combine accompanying drawing to vertical axis windmill magnetic deformation blade of the present invention
It is specifically addressed.
Fig. 1 is magnetic deformation leaf appearance and cross sectional view in embodiments of the invention.
As it is shown in figure 1, vertical axis windmill magnetic deformation blade 100 has: blade 10 with
And magnet unit 20.
Blade 10 includes: blade body 11,2 eyelid covering lids 12, complex root crossbeams 13.
Fig. 2 is embodiments of the invention Leaf inner body wall cavity perspective diagrams.
As in figure 2 it is shown, the longitudinal section of blade body 11 is elongated, blade body transversal
Face is the most wing, and blade body 11 is internally provided with cavity 11a, and cavity has relative
Two sides blade inwall 11b, 11c, and form the front acies 11d and trailing edge end 11e of cavity 11a,
The through blade body of cavity 11a 11, and two ends are through, in embodiment, blade body 11 is long
Degree is 3m, the flexible material system that the material of blade body 11 uses thickness to be 5mm-30mm
Become.
Eyelid covering lid 12, is separately positioned on the two ends of blade body 11, the material of eyelid covering lid 12
Use flexible material.
Crossbeam 13, is additionally provided with complex root crossbeam in cavity, crossbeam is fixedly connected on cavity 11
The front acies 11d and trailing edge end 11e of inwall, in embodiment, crossbeam quantity is 7, crossbeam
Material use metal.
Fig. 3 is that in embodiments of the invention Leaf inner body wall, one side installation magnetic stripe perspective is shown
It is intended to；
As it is shown on figure 3, magnet unit 20 includes that complex root magnetic strips 21, magnetic strips 21 are glued
Knot is on blade body inwall 11b.
As it is shown in figure 1, complex root magnetic strips 21 is oppositely arranged and same magnetic pole-face relative, point
It is not bonded on blade body inwall and crossbeam.
Fig. 4 is at wind-force effect lower blade profile variation schematic diagram.
As shown in Figure 4, under airflow function, leaf cross-section shape occurs at diverse location
Situation of change, airflow direction is from left to right in the drawings, when position 1, blade pressure towards
Indent, suction surface convex, when blade rotation 180 ° is to position 3, blade pressure surface becomes
Becoming suction surface convex, suction surface becomes pressure face and concaves.
Vertical axis windmill magnetic deformation blade working principle is:
Fig. 5 is magnetic deformation blade profile change schematic diagram in embodiments of the invention.
As it is shown in figure 5, when blade is among airflow field, owing to by airflow function, causing
Blade outer surface stress is different, and pressure face is caved inward by air-flow high pressure, due to the phase of magnetic
Scolding effect to cave inward and become mild, now blade pressure surface stress maximum moves to suction surface
Dynamic, suction surface becomes more to protrude due to the effect of repelling each other of magnetic, forms one and has good gas
The self adaptation deformed vanes of dynamic performance, when wind direction difference, the pressure face of blade and suction surface will
Automatically change, it is possible to improve wind energy utilization and acting ability by a relatively large margin.
The effect of embodiment and effect
The present invention provides a kind of magnetic deformation blade that can be applicable to vertical axis windmill, and blade is originally
The longitudinal section of body is strip, and the cross section of blade body is symmetrical wing, inside blade body
Being provided with cavity, the material of blade body uses has certain thickness flexible material, at blade
Being provided with complex root magnetic strips on cavity inner wall, magnetic strips is oppositely arranged and same magnetic pole-face phase
Right, fix and be bonded on blade cavity inwall, change for the magnetic force utilizing magnetic part to produce
The profile of blade body.Due to magnetic strips low price, buying is convenient, magnetic strips and leaf simultaneously
Sheet cavity inner wall bond operation technique is simple, can improve work efficiency, therefore, the reality of the present invention
Execute example and there is the advantage reducing low cost.
Above-mentioned embodiment is the preferred case of the present invention, is not intended to limit the protection of the present invention
Scope.
Claims (10)
1. a vertical axis windmill magnetic deformation blade, it is characterised in that have:
Blade, including blade body, described blade body is internally provided with cavity, described cavity
There is relative two sides blade inwall；And
Least one set magnet unit, described magnet unit has the first magnetic part and the second magnetic
Parts, are separately positioned on described blade inwall, described first magnetic part and described second magnetic
Property parts be oppositely arranged and same magnetic pole-face is relative, for the magnetic utilizing described magnetic part to produce
Property mutual expelling force change described blade body profile.
Vertical axis windmill magnetic deformation blade the most according to claim 1, its feature exists
In:
Wherein, described first magnetic part and the second magnetic part are magnetic strips.
Vertical axis windmill magnetic deformation blade the most according to claim 1, its feature exists
In:
Wherein, described first magnetic part and the second magnetic part are magnetic coating.
Vertical axis windmill magnetic deformation blade the most according to claim 1, its feature exists
In:
Wherein, being additionally provided with complex root crossbeam in described cavity, described crossbeam is fixedly connected on
The front acies of described cavity inner wall and trailing edge end,
The two sides of described crossbeam is respectively arranged with the 3rd magnetic part and the 4th magnetic part, described
3rd magnetic part and described 4th magnetic part are magnetic strips,
Described 3rd magnetic part and described first magnetic part are oppositely arranged and same magnetic pole-face
Relatively, described 4th magnetic part and described second magnetic part are oppositely arranged and same magnetic pole-face
Relatively.
Vertical axis windmill magnetic deformation blade the most according to claim 1, its feature exists
In:
Wherein, the longitudinal section of described blade body is elongated, the cross section of described blade body
The most wing.
Vertical axis windmill magnetic deformation blade the most according to claim 1, its feature exists
In:
Wherein, described cavity is longitudinally through described blade body, and two ends are through.
Vertical axis windmill magnetic deformation blade the most according to claim 1, its feature exists
In:
Wherein, described blade also includes two eyelid covering lids, is separately positioned on described blade body
Two ends.
Vertical axis windmill magnetic deformation blade the most according to claim 7, its feature exists
In:
Wherein, the material of described eyelid covering lid is flexible material.
Vertical axis windmill magnetic deformation blade the most according to claim 6, its feature exists
In:
Wherein, the material of described blade body uses thickness to be the flexible material of 5mm-30mm
Make.
Vertical axis windmill magnetic deformation blade the most according to claim 1, its feature
It is:
Wherein, the longitudinal section of described blade body is elongated, the cross section of described blade body
In asymmetric wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373382.1A CN105927465B (en) | 2016-05-31 | 2016-05-31 | A kind of vertical axis windmill magnetic deformation blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373382.1A CN105927465B (en) | 2016-05-31 | 2016-05-31 | A kind of vertical axis windmill magnetic deformation blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927465A true CN105927465A (en) | 2016-09-07 |
| CN105927465B CN105927465B (en) | 2019-06-04 |
Family
ID=56832240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610373382.1A Active CN105927465B (en) | 2016-05-31 | 2016-05-31 | A kind of vertical axis windmill magnetic deformation blade |
Country Status (1)
| Country | Link |
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| CN (1) | CN105927465B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751182A (en) * | 2019-03-19 | 2019-05-14 | 上海理工大学 | A kind of mechanical active deformation blade can be used for vertical axis windmill |
| CN110027706A (en) * | 2019-04-04 | 2019-07-19 | 上海理工大学 | Swing the flapping wings formula capacitation device and control method of 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 active Active
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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751182A (en) * | 2019-03-19 | 2019-05-14 | 上海理工大学 | A kind of mechanical active deformation blade can be used for vertical axis windmill |
| CN109751182B (en) * | 2019-03-19 | 2023-11-07 | 上海理工大学 | Novel mechanical active deformation blade for vertical axis wind turbine |
| CN110027706A (en) * | 2019-04-04 | 2019-07-19 | 上海理工大学 | Swing the flapping wings formula capacitation device and control method of trailing edge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927465B (en) | 2019-06-04 |
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