CN110513245B - Novel fan blade and application method thereof - Google Patents
Novel fan blade and application method thereof Download PDFInfo
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- CN110513245B CN110513245B CN201910856920.6A CN201910856920A CN110513245B CN 110513245 B CN110513245 B CN 110513245B CN 201910856920 A CN201910856920 A CN 201910856920A CN 110513245 B CN110513245 B CN 110513245B
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- fan blade
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- push rod
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000009471 action Effects 0.000 claims description 13
- 210000003781 tooth socket Anatomy 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 9
- 238000010248 power generation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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- 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
- F03D3/066—Rotors characterised by their construction elements the wind engaging parts being movable relative to the rotor
- F03D3/067—Cyclic movements
- F03D3/068—Cyclic movements mechanically controlled by the rotor structure
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- 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
- F03D7/00—Controlling wind motors
- F03D7/06—Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention belongs to the technical field of wind power generation, and particularly relates to a novel fan blade and a using method thereof. Including pole setting, big fan blade, swivel becket movable sleeve is in the pole setting, big fan blade has a plurality of, and the circumference evenly divides the portion setting on the swivel becket, big fan blade comprises two upper and lower fan blade frames and a plurality of rotatable little blades of installing between two upper and lower fan blade frames, the fan blade frame is fixed on the swivel becket, the below activity of swivel becket is provided with the eccentric wheel in the pole setting, the fixed ring gear that is equipped with in the below of eccentric wheel in the pole setting, vertical fixation is equipped with the wind direction board on the eccentric wheel. The invention has the advantages of simple structure, low manufacturing cost, simple and convenient installation and transportation, low installation height, ground installation of the generator, convenient maintenance, flexible installation scale, high efficiency, breeze operation, automatic control, no requirement on wind direction, small blade rotation space and strong wind resistance, and can be popularized and used.
Description
Technical Field
The invention mainly relates to the technical field of wind power generation, in particular to a novel fan blade and a using method thereof.
Background
In the context of the growing global energy crisis and environmental crisis, wind energy resources are beginning to receive widespread attention. Wind energy is one of the most commercially potential and most viable renewable energy sources, and is clean to use, low in cost and inexhaustible to use. The wind energy resource of China is abundant, the wind energy region which can be developed and utilized is wide, the land on the sea can be built, the wind energy is clean energy, the environmental benefit is good, the wind energy is renewable and never exhausted, the foundation period of the wind power generation equipment is short, the installation scale is flexible, the operation and maintenance cost is low, and the like. Wind power generation can effectively alleviate air pollution, water pollution and global warming problems while providing stable power supply for economic growth. The large-scale popularization of wind power can make positive contribution to energy conservation and emission reduction. The great development of wind power generation provides wide market space and prospect for wind power generation equipment manufacturing industry. At present, the principle of wind power generation is that wind power is utilized to drive windmill blades to rotate, and then the rotating speed is increased through a speed increaser so as to promote a generator to generate electricity. According to the current wind power generator technology, the wind flow speed of about four meters per second can start generating electricity. The fan belongs to an axial flow fan, namely, the wind flow direction is parallel to the direction of the rotating shaft, and the structural characteristics determine the following unavoidable defects: 1. the manufacturing cost is high, and the cost is high; 2. difficult to install, transport and maintain; 3. the efficiency is low, the starting is difficult, and the structure is complex; because the wind blades do circular motion around the hub, the angular velocities of the wind blades at different positions are the same, but the linear velocities are different, so that the stress of each point is unbalanced, at a certain rotating speed, the wind blades are in a forward force in some places and in a reverse force in some places, the efficiency is low, and the wind blades are likely to be broken when the wind speed is high; 4. a large field is required; 5. the bird is endangered; 6. the wind sand has great influence on equipment; 7. home use is limited.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a novel fan blade and a using method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a novel fan blade, includes pole setting 1, big fan blade 2, swivel becket 3, its characterized in that: the rotating ring 3 is movably sleeved on the vertical rod 1, the large fan blades 2 are provided with a plurality of large fan blades, the circumference of the large fan blades 2 are uniformly distributed on the rotating ring 3, each large fan blade 2 consists of an upper fan blade frame 21, a lower fan blade frame 21 and a plurality of rotatable small blades 22 arranged between the upper fan blade frame 21 and the lower fan blade frame 21, the fan blade frames 21 are fixed on the rotating ring 3, an eccentric wheel 4 is movably arranged below the rotating ring 3 on the vertical rod 1, a fixed toothed ring 5 is fixedly arranged below the eccentric wheel 4 on the vertical rod 1, and a wind direction plate 6 is vertically fixed on the eccentric wheel 4.
The small blades 22 are connected with a push rod 24 arranged beside the lower fan blade frame 21 through a connecting rod 23, one end of the push rod 24 is connected with a push rod wheel 26 through a push spring 25, the central axis of the push rod wheel 26 is parallel to the central axis of the eccentric wheel 4, and the push rod wheel 26 is tightly attached to the edge of the eccentric wheel 4 under the action of the push spring 25.
One end of the connecting rod 23 is movably inserted on the lower edge of the small blade 22, and the other end of the connecting rod 23 is movably inserted on the push rod 24.
The push rod 24 is movably positioned in a fixed groove 27 arranged on the side wall of the fan blade frame 21.
The fixing groove 27 at the outer end of the fan blade frame 22 is in a shape of 'L', and the rest of the fixing groove is in a shape of 'L'.
The wind direction plate 6 is horizontally provided with a spring pin 6, and the conical end of the spring pin 6 is horizontally inserted into the tooth slot of the fixed toothed ring 5.
The vertical edge of the outer side of the small blade 22 is provided with a rotating shaft, and the upper end and the lower end of the rotating shaft are movably inserted on the upper fan blade frame 21 and the lower fan blade frame 21.
The wind deflector 6 is located below the pushrod wheels 26.
The application method of the novel fan blade comprises the following steps: when the wind direction plate is perpendicular to the wind direction, the wind blows the wind direction plate, the wind direction plate drives the eccentric wheel to rotate until the wind direction plate is parallel to the wind direction, the tip of the spring pin on the wind direction plate is meshed with the tooth slot on the fixed toothed ring, the eccentric wheel is fixed, and when the wind force on the wind direction plate reaches enough force for the spring pin to spring up, the wind direction plate drives the eccentric wheel to rotate to a proper position; the push rod wheel is tightly attached to the eccentric wheel under the action of the push rod spring and can rotate around the eccentric wheel, when the big fan blades rotate around the vertical rod, the push rod also rotates along with the eccentric wheel, the small blades on the big fan blades rotating along the wind are pushed by the push rod to be spliced together, and the small blades on the big fan blades rotating against the wind are pushed by the push rod to be separated from each other, so that a gap is formed.
Compared with the prior art, the invention has the beneficial effects that: the big fan blade that its set up comprises a plurality of little blades, and little blade can be with the rotatory opening and shutting of suitable angle under the effect of push rod, and when the fan blade frame rotated around the pole setting, the little blade on the big fan blade of the face that the downwind rotated was pieced together and is formed whole plane form, increases wind-force, has improved generating efficiency greatly, and the little blade on the big fan blade of the face that the upwind rotated separates each other, forms the clearance, reduces the resistance. The specific beneficial effects include the following points: 1. the structure is simple, and the manufacturing cost is low; 2. the installation and transportation are simple and convenient, the installation height is low, the generator can be installed on the ground, the maintenance is convenient, and the installation scale is flexible; 3. the efficiency is high, breeze operation is performed, and automatic control is performed; 4. the wind direction is not required, the rotation space of the blades is small, and the wind resistance is strong; 5. the field requirement is low; 6. no harm is caused to birds; 7. because of simple structure, the wind sand and other severe environments do not affect the equipment; 8. the installation scale is flexible, the efficiency is high, so that the household electricity demand can be met, auxiliary heating can be performed in winter, and surplus electric quantity can be connected to the network.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a front view of embodiment 1 of the present invention.
Fig. 3 is a top view of embodiment 1 of the present invention.
Fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 5 is a schematic structural diagram of embodiment 3 of the present invention.
Fig. 6 is a schematic structural diagram of embodiment 4 of the present invention.
The figure shows: a vertical rod 1; a large fan blade 2; a fan blade frame 21; a vanelet 22; a link 23; a push rod 24; a push spring 25; a pushrod wheel 26; a fixing groove 27; a rotating ring 3; an eccentric wheel 4; a fixed toothed ring 5; a wind deflector 6; spring pins 7.
Detailed Description
The structure and advantageous effects of the present invention will be further described with reference to the accompanying drawings.
Example 1
The utility model provides a novel fan blade, like fig. 1 through 3, includes pole setting 1, big fan blade 2, swivel ring 3 movable sleeve is in pole setting 1, big fan blade 2 has a plurality of, and the circumference evenly divides the setting on swivel ring 3, big fan blade 2 comprises two upper and lower fan blade frame 21 and a plurality of rotatable little blade 22 of installing between two upper and lower fan blade frame 21, fan blade frame 21 is fixed on swivel ring 3, the below activity of swivel ring 3 is provided with eccentric wheel 4 in the pole setting 1, and the below of eccentric wheel 4 is fixed in pole setting 1 is equipped with fixed ring gear 5, vertically fixed with wind vane 6 on the eccentric wheel 4.
The small blades 22 are connected with a push rod 24 arranged beside the lower fan blade frame 21 through a connecting rod 23, one end of the push rod 24 is connected with a push rod wheel 26 through a push spring 25, the central axis of the push rod wheel 26 is parallel to the central axis of the eccentric wheel 4, and the push rod wheel 26 is tightly attached to the edge of the eccentric wheel 4 under the action of the push spring 25. One end of the connecting rod 23 is movably inserted on the lower edge of the small blade 22, and the other end of the connecting rod 23 is movably inserted on the push rod 24. The push rod 24 is movably positioned in a fixed groove 27 arranged on the side wall of the fan blade frame 21. The fixing groove 27 at the outer end of the fan blade frame 21 is in a shape of 'L', and the rest of the fixing groove is in a shape of 'L'. The wind direction plate 6 is horizontally provided with a spring pin 7, and the conical end of the spring pin 7 is horizontally inserted into the tooth slot of the fixed toothed ring 5. The vertical edge of the outer side of the small blade 22 is provided with a rotating shaft, and the upper end and the lower end of the rotating shaft are movably inserted on the upper blade frame 22 and the lower blade frame 22. The wind deflector 6 is located below the pushrod wheels 26.
The application method of the novel fan blade comprises the following steps: when the wind direction plate is perpendicular to the wind direction, the wind blows the wind direction plate, the wind direction plate drives the eccentric wheel to rotate until the wind direction plate is parallel to the wind direction, the tip of the spring pin on the wind direction plate is meshed with the tooth slot on the fixed toothed ring, the eccentric wheel is fixed, and when the wind force on the wind direction plate reaches enough force for the spring pin to spring up, the wind direction plate drives the eccentric wheel to rotate to a proper position; the push rod wheel is tightly attached to the eccentric wheel under the action of the push rod spring and can rotate around the eccentric wheel, when the big fan blades rotate around the vertical rod, the push rod also rotates along with the eccentric wheel, the small blades on the big fan blades rotating along the wind are pushed by the push rod to be spliced together, and the small blades on the big fan blades rotating against the wind are pushed by the push rod to be separated from each other, so that a gap is formed.
The application principle of the invention is as follows: each big fan blade consists of a plurality of small blades, the small blades can be rotated and opened and closed at a proper angle under the action of a push rod, one end of the push rod is provided with a push rod wheel, the push rod wheel is tightly attached to the eccentric wheel under the action of a push rod spring and can rotate around the eccentric wheel, when the big fan blade rotates around the vertical rod, the small blades on the big fan blade rotating downwind are spliced together, and the small blades on the big fan blade rotating upwind are separated from each other to form a gap, so that the resistance is reduced. In order to adapt to wind direction, a wind direction plate is designed, and the connection line between the furthest point and the closest point of the wind direction plate and the eccentric wheel is welded vertically, so that no matter how the wind direction changes, the connection line between the furthest point and the closest point of the eccentric wheel is always vertical to the wind direction transversely, and the small blades of the large fan blade are ensured to be just combined or just opened on the cross section of the wind direction. In order to adapt to wind direction and not prevent small angle from swaying, a fixed toothed ring is arranged below an eccentric wheel, a spring pin is arranged on a wind direction plate, the tip of the pin is meshed with a tooth socket, and when the force on the wind direction plate reaches enough force to enable the spring pin to spring up, the wind direction is designedThe plate drives the eccentric wheel to rotate to a proper position, so that the purpose of adapting to wind direction is achieved. The structure maximally utilizes the kinetic energy of wind, and according to the Betz theory, V is set 1 Is the wind speed upstream of the wind wheel, V is the wind speed passing through the wind wheel, V 2 Is the wind speed downstream of the wind wheel, the air flow section through the wind wheel is S, ρ is the air density, and since the energy obtained by the wind wheel is obtained by wind energy conversion, V 2 Must be smaller than V 1 . From the momentum equation, aerodynamic forces acting on the rotor are obtained as:
F＝ρSV(V 1 -V 2 )
so the wind wheel absorbs the power of
P＝FV＝ρSV 2 (V 1 -V 2 )
Therefore, the change in upstream to downstream kinetic energy is Δe=0.5ρsv (V 1 2 -V 2 2 )
From the law of conservation of energy, it can be seen that
V＝0.5(V 1 +V 2 )
Thus, the aerodynamic forces acting on the rotor and the power supplied can be written as
F＝0.5ρS(V 1 2 -V 2 2 )
P＝0.25ρS(V 1 2 -V 2 2 )(V 1 +V 2 )
For a given upstream speed V 1 Can write with V 2 The V is obtained by differentiating the above relation of power variation as a function 2 ＝V 1 At/3, the power P reaches a maximum, i.e. pmax=8/27 ρsv13
Therefore, in the running of the fan, the fan blade rotates to be close to V through intelligent speed change control 1 At/3, the conversion power P is brought to a maximum value. The device is matched with an intelligent speed changer to keep the rotating speed of the fan blade reasonably stable so as to obtain the maximum efficiency.
Example 2
As shown in FIG. 4, in this embodiment, one side of the fan blade frame is made into an arc shape, so that a pair of large fan blades arranged oppositely are in an S shape in overlook, edges are additionally arranged around the arc edges of the fan blade frame, and small fan blades are arranged along the edges of the arc edges of the fan blade frame and are connected to form a wind pocket, so that the wind energy conversion rate is improved.
Example 3
As shown in fig. 5, in this embodiment, canvas is used to replace a plurality of small blades on each large blade, and a canvas drum is mounted on the blade frame of each large blade, the principle is as a steel tape, fixed uprights are arranged on the vertical edges of the inner sides of the canvas, the upper ends and the lower ends of the fixed uprights are fixed on the blade frame, the canvas drum is arranged on a movable upright, the upper ends and the lower ends of the movable upright are positioned in movable grooves on the blade frame, the lower ends of the movable upright are connected with connecting rods, and one ends of the connecting rods are movably inserted on the push rods. Therefore, the canvas can be stretched or rolled under the action of the push rod, and the push rod moves back and forth under the action of the eccentric wheel along with the rotation of the large fan blade, so that the canvas is stretched when running down the wind, and rolled when running against the wind, and the maximum wind power can be obtained.
Example 4
As shown in FIG. 6, in this embodiment, a plurality of openings are formed on each large fan blade, and small cover plates are arranged on the openings through hinges, so that the fan blades are blown up against the wind when rotating, and are naturally closed under the action of gravity when following the wind, so that the fan blades obtain maximum forward moment and naturally adapt to the wind direction.
The above description is only a preferred example of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The utility model provides a novel fan blade, includes pole setting (1), big fan blade (2), swivel becket (3), its characterized in that: the rotating ring (3) is movably sleeved on the vertical rod (1), the large fan blades (2) are uniformly distributed on the rotating ring (3) in circumference, the large fan blades (2) are composed of an upper fan blade frame (21) and a lower fan blade frame (22) which are arranged between the upper fan blade frame (21) and the lower fan blade frame (21), the fan blade frame (21) is fixed on the rotating ring (3), an eccentric wheel (4) is movably arranged below the rotating ring (3) on the vertical rod (1), a fixed toothed ring (5) is fixedly arranged below the eccentric wheel (4) on the vertical rod (1), and a wind direction plate (6) is vertically fixed on the eccentric wheel (4); the small blades (22) are connected with a push rod (24) arranged beside the lower fan blade frame (21) through a connecting rod (23), one end of the push rod (24) is connected with a push rod wheel (26) through a push spring (25), the central axis of the push rod wheel (26) is parallel to the central axis of the eccentric wheel (4), and the push rod wheel (26) is tightly attached to the edge of the eccentric wheel (4) under the action of the push spring (25); the push rod (24) is movably positioned in a fixed groove (27) arranged on the side wall of the fan blade frame (21), the fixed groove (27) at the outer end of the fan blade frame (21) is in a shape of 'L', and the rest is in a shape of 'L'; a spring pin (7) is horizontally arranged on the wind direction plate (6), the conical end of the spring pin (7) is horizontally inserted into a tooth socket of the fixed toothed ring (5), and the wind direction plate (6) is positioned below the push rod wheel (26); the small blades (22) are canvas, canvas drums are arranged on the fan blade frames (21) of each large fan blade (2), fixed vertical rods are arranged on the vertical edges of the inner sides of the canvas, the upper ends and the lower ends of the fixed vertical rods are fixed on the fan blade frames (21), the canvas drums are arranged on movable vertical rods, the upper ends and the lower ends of the movable vertical rods are located in movable grooves in the fan blade frames (21), the lower ends of the movable vertical rods are connected with connecting rods (23), one ends of the connecting rods (23) are movably inserted on pushing rods (24), and the canvas can be stretched or rolled under the action of the pushing rods (24).
2. The method for using a novel fan blade according to claim 1, wherein: when the wind direction plate is perpendicular to the wind direction, the wind blows the wind direction plate, the wind direction plate drives the eccentric wheel to rotate until the wind direction plate is parallel to the wind direction, the tip of the spring pin on the wind direction plate is meshed with the tooth slot on the fixed toothed ring, the eccentric wheel is fixed, and when the wind force on the wind direction plate reaches enough force for the spring pin to spring up, the wind direction plate drives the eccentric wheel to rotate to a proper position; the push rod wheel is tightly attached to the eccentric wheel under the action of the push rod spring and can rotate around the eccentric wheel, when the large fan blade rotates around the vertical rod, the push rod also rotates along with the rotation of the large fan blade, the push rod moves back and forth under the action of the eccentric wheel, and the cloth sail is opened when running down the wind and is curled when running down the wind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910856920.6A CN110513245B (en) | 2019-09-11 | 2019-09-11 | Novel fan blade and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910856920.6A CN110513245B (en) | 2019-09-11 | 2019-09-11 | Novel fan blade and application method thereof |
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| Publication Number | Publication Date |
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| CN110513245A CN110513245A (en) | 2019-11-29 |
| CN110513245B true CN110513245B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910856920.6A Active CN110513245B (en) | 2019-09-11 | 2019-09-11 | Novel fan blade and application method thereof |
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| Country | Link |
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| CN (1) | CN110513245B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903921A (en) * | 2021-01-27 | 2021-06-04 | 深圳市威标检测技术有限公司 | Gas detection device for environmental detection |
| CN115773199B (en) * | 2022-12-20 | 2023-11-21 | 江苏宝诚重工科技有限公司 | Wind power generation rotor blade |
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| US4684817A (en) * | 1985-03-11 | 1987-08-04 | Goldwater John M | Valvular sail power plant |
| CN87215673U (en) * | 1987-11-14 | 1988-08-17 | 魏勇 | Detachable-blade combined type verticle shaft wind motor |
| CN2334898Y (en) * | 1998-03-02 | 1999-08-25 | 刘天才 | High-efficient wind motor |
| DE202010003488U1 (en) * | 2010-03-11 | 2010-06-02 | Klimas, Joachim | Device for converting wind energy into mechanical energy |
| CN201599138U (en) * | 2010-02-10 | 2010-10-06 | 惠琬童 | Automatic flip windmill capable of starting windward |
| CN202132173U (en) * | 2011-07-28 | 2012-02-01 | 薛建刚 | Fan wheel device used in vertical wind generator and provided with louvered fan blades |
| CN104141589A (en) * | 2013-05-09 | 2014-11-12 | 高宏铭 | Blade structure rotatable under air convection |
| CN105134495A (en) * | 2015-09-09 | 2015-12-09 | 青岛经济技术开发区泰合海浪能研究中心 | Vertical-axis wind generator blade attack angle regulation and speed limitation device |
| CN211008951U (en) * | 2019-09-11 | 2020-07-14 | 甘肃高来旺新能源科技有限公司 | Novel fan blade |
-
2019
- 2019-09-11 CN CN201910856920.6A patent/CN110513245B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4684817A (en) * | 1985-03-11 | 1987-08-04 | Goldwater John M | Valvular sail power plant |
| CN87215673U (en) * | 1987-11-14 | 1988-08-17 | 魏勇 | Detachable-blade combined type verticle shaft wind motor |
| CN2334898Y (en) * | 1998-03-02 | 1999-08-25 | 刘天才 | High-efficient wind motor |
| CN201599138U (en) * | 2010-02-10 | 2010-10-06 | 惠琬童 | Automatic flip windmill capable of starting windward |
| DE202010003488U1 (en) * | 2010-03-11 | 2010-06-02 | Klimas, Joachim | Device for converting wind energy into mechanical energy |
| CN202132173U (en) * | 2011-07-28 | 2012-02-01 | 薛建刚 | Fan wheel device used in vertical wind generator and provided with louvered fan blades |
| CN104141589A (en) * | 2013-05-09 | 2014-11-12 | 高宏铭 | Blade structure rotatable under air convection |
| CN105134495A (en) * | 2015-09-09 | 2015-12-09 | 青岛经济技术开发区泰合海浪能研究中心 | Vertical-axis wind generator blade attack angle regulation and speed limitation device |
| CN211008951U (en) * | 2019-09-11 | 2020-07-14 | 甘肃高来旺新能源科技有限公司 | Novel fan blade |
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| Publication number | Publication date |
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| CN110513245A (en) | 2019-11-29 |
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