CN112814840A - Environment-friendly wind power generation device with self-protection function - Google Patents

Environment-friendly wind power generation device with self-protection function Download PDF

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Publication number
CN112814840A
CN112814840A CN202011616942.4A CN202011616942A CN112814840A CN 112814840 A CN112814840 A CN 112814840A CN 202011616942 A CN202011616942 A CN 202011616942A CN 112814840 A CN112814840 A CN 112814840A
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CN
China
Prior art keywords
fixedly connected
wind power
power generation
environment
self
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CN202011616942.4A
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Chinese (zh)
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CN112814840B (en
Inventor
李良
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Han Jianguo
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Jiangsu Hanlian Environmental Protection Equipment Technology Co ltd
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Priority to CN202011616942.4A priority Critical patent/CN112814840B/en
Publication of CN112814840A publication Critical patent/CN112814840A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D7/00Controlling wind motors 
    • F03D7/02Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022Adjusting aerodynamic properties of the blades
    • F03D7/0236Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06Rotors
    • F03D1/065Rotors characterised by their construction elements
    • F03D1/0658Arrangements for fixing wind-engaging parts to a hub
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06Rotors
    • F03D1/065Rotors characterised by their construction elements
    • F03D1/0675Rotors characterised by their construction elements of the blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D7/00Controlling wind motors 
    • F03D7/02Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/0244Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
    • F03D7/0248Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking by mechanical means acting on the power train
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D7/00Controlling wind motors 
    • F03D7/02Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/0276Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling rotor speed, e.g. variable speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D7/00Controlling wind motors 
    • F03D7/02Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/04Automatic control; Regulation
    • F03D7/041Automatic control; Regulation by means of a mechanical governor
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

The invention relates to the technical field of new energy, in particular to an environment-friendly wind power generation device with a self-protection function, which comprises a shell, wherein the outer surface of the shell is connected with telescopic blades in a sliding manner, a fixing ring is fixedly connected inside the shell, a rotating shaft is fixedly connected inside the fixing ring, a limiting seat is fixedly connected to the inner surface of the fixing ring, a connecting plate is fixedly connected to the outer surface of the limiting seat, and one end, far away from the limiting seat, of the connecting plate is fixedly connected with a limiting frame. When the regulating block is in the inside gliding of slide rail, the spacer pin of regulating block surface breaks away from the spacing of casing internal surface along with the regulating block slip in-process, will stretch out and draw back the blade to the inside pulling of casing under the effect of the buffer seat of flexible blade lower surface this moment, makes flexible blade shrink to the inside of casing, reduces the area of contact of casing and wind-force, prevents that the rotation of casing is too fast, leads to equipment overload operation, improve equipment's life.

Description

Environment-friendly wind power generation device with self-protection function
Technical Field
The invention relates to the technical field of new energy, in particular to an environment-friendly wind power generation device with a self-protection function.
Background
Wind power generation is characterized in that kinetic energy of wind is converted into electric energy, wind energy is clean and pollution-free renewable energy and is used by people for a long time, water is pumped and ground through a windmill, the wind power generator is placed outdoors, and the kinetic energy of the wind drives blades of the wind power generator to rotate so as to generate electricity, the wind power is used for generating electricity, the environment is protected, no pollution is caused, and the loss of non-renewable energy is saved.
However, in the use process of the existing wind power generator, when the wind power is too large, and the rotation speed of the wind power generator is too fast, the wind power generator may be overloaded to cause damage of the wind power generator, so that those skilled in the art provide an environment-friendly wind power generation device with a self-protection function to solve the problems proposed in the above background art.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides an environment-friendly wind power generation apparatus with a self-protection function, which is achieved by the following specific technical means:
the utility model provides an environment-friendly wind power generation set with oneself protect function, includes the casing, the surface sliding connection of casing has flexible blade, the solid fixed ring of inside fixedly connected with of casing, solid fixed ring's inside fixedly connected with pivot, gu fixed ring's spacing seat of fixed surface fixedly connected with, the surface fixedly connected with connecting plate of spacing seat, the spacing frame of one end fixedly connected with of spacing seat is kept away from to the connecting plate, there is the ejector pin spacing inside of frame through spacing spring elastic connection, the surface of pivot is encircleed there is the speed reduction piece, the top of speed reduction piece besieged the thoughtlessly to move and is connected with the pull rod, the pull rod is kept away from the one end of speed reduction piece and is.
The utility model discloses a spacing fixed ring's fixed ring, including solid fixed ring, flexible blade, spring connecting rod, sliding sleeve, adjusting block, fixed ring's inside and the equal fixedly connected with connecting seat in both sides that is located spacing seat, the inside fixedly connected with slide rail of flexible blade, the bottom of slide rail is rotated and is connected with spring connecting rod, spring connecting rod keeps away from the one end rotation that flexible blade and is connected with the sliding sleeve, the external fixed surface of sliding sleeve is connected with the connection support, the lower surface of connection support is connected with solid fixed ring's external fixed surface, the bottom fixedly connected with push rod of flexible blade, the bottom of push rod is rotated and is connected with the buffing pad, the surface of buffing pad is connected with the internal.
Preferably, the telescopic rod penetrates through the inner surface of the telescopic blade and is connected with the inner surface of the shell in a clamping mode.
Preferably, the number of the adjusting blocks is two, and the adjusting blocks are arranged inside the sliding rail in a bilateral symmetry mode by taking the vertical center line of the telescopic blades as the center line.
And optimally, the size of the sliding sleeve is matched with that of the ejector rod, and the sliding sleeve is connected with the ejector rod in a sliding manner.
As optimization, the size of the rotating shaft is matched with that of the decelerating sheet, and the rotating shaft is far away from the decelerating sheet.
As optimization, the bottom end of the ejector rod is provided with a balancing weight, and the balancing weight is made of stainless steel.
The invention has the following beneficial effects:
1. this environment-friendly wind power generation set with self-protect function, when the regulating block is in the inside gliding of slide rail, the spacer pin of regulating block surface is along with the regulating block slip in-process, break away from the spacing of casing internal surface, will stretch out and draw back the blade to the inside pulling of casing under the effect of the buffer seat of flexible blade lower surface this moment, make flexible blade shrink to the inside of casing, reduce the area of contact of casing and wind-force, prevent that the rotation of casing is too fast, lead to equipment overload operation, improve equipment's life.
2. This environment-friendly wind power generation set with self-protect function, centrifugal force through the casing production at the pivoted in-process makes the ejector pin outwards slide at solid fixed ring's surface, when the ejector pin is at solid fixed ring's surface gliding, the ejector pin passes through the pull rod pulling air brake to be close to the pivot, the internal surface that makes the air brake and the surface of pivot contact each other, the resistance of increase pivot in the rotation process, reduce the rotational speed of pivot, the normal operating of protective apparatus, avoid equipment to cause irreversible damage.
Drawings
FIG. 1 is a front sectional view of the housing structure of the present invention;
FIG. 2 is a partial cross-sectional view of the tie bar construction of the present invention;
FIG. 3 is a partial cross-sectional view of the telescoping blade configuration of the present invention;
FIG. 4 is a partial cross-sectional view of a retaining ring structure according to the present invention;
fig. 5 is an enlarged view of a portion of fig. 1 in accordance with the present invention.
In the figure: 1. a housing; 2. a rotating shaft; 3. a limiting frame; 4. a limiting seat; 5. a fixing ring; 6. a connecting seat; 7. a top rod; 8. a pull rod; 9. a deceleration sheet; 10. a connecting plate; 11. a limiting spring; 12. a telescopic blade; 13. a slide rail; 14. a push rod; 15. a spring link; 16. a buffer seat; 17. a sliding sleeve; 18. connecting a support; 19. an adjusting block; 20. a spacing pin; 21. a telescopic rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an environment-friendly wind power generation device with self-protection function comprises a housing 1, wherein the outer surface of the housing 1 is slidably connected with a telescopic blade 12, the inner portion of the housing 1 is fixedly connected with a fixing ring 5, the inner portion of the fixing ring 5 is fixedly connected with a rotating shaft 2, the size of the rotating shaft 2 is matched with that of a speed reduction sheet 9, the rotating shaft 2 is far away from the speed reduction sheet 9, the inner surface of the fixing ring 5 is fixedly connected with a limiting seat 4, the outer surface of the limiting seat 4 is fixedly connected with a connecting plate 10, and one end of the connecting plate 10, far away from the limiting seat 4.
Spacing 3's inside has ejector pin 7 through 11 elastic connection of spacing spring, the bottom of ejector pin 7 is provided with the balancing weight, the material of balancing weight is the stainless steel, the surface of pivot 2 is surrounded has speed reduction piece 9, speed reduction piece 9's top is bestrewed and is thoughtlessly moved and be connected with pull rod 8, the one end that speed reduction piece 9 was kept away from to pull rod 8 is connected with the fixed surface of ejector pin 7, the inside of solid fixed ring 5 just is located the equal fixedly connected with connecting seat 6 in both sides of spacing seat 4, the inside fixedly connected with slide rail 13 of flexible blade 12, the bottom of slide rail 13 is rotated and is connected with spring connecting rod 15, spring connecting rod 15 keeps away from the one.
Size of sliding sleeve 17 and the size looks adaptation of ejector pin 7, sliding sleeve 17 and ejector pin 7 sliding connection, sliding sleeve 17's outer fixed surface is connected with and connects support 18, the lower surface of connecting support 18 and the outer fixed surface of solid fixed ring 5 are connected, the bottom fixedly connected with push rod 14 of flexible blade 12, the bottom of push rod 14 is rotated and is connected with buffer base 16, the surface of buffer base 16 and the internal surface fixed connection of casing 1, the inside sliding connection of slide rail 13 has regulating block 19, the quantity of regulating block 19 is two, regulating block 19 sets up the inside at slide rail 13 as bilateral symmetry with the vertical central line of flexible blade 12, the lower fixed surface of regulating block 19 is connected with telescopic link 21, telescopic link 21 runs through the internal surface in flexible blade 12, telescopic link 21 is connected with the internal surface block of casing 1, the outside fixedly connected with spacer pin 20 of regulating block 19.
When the adjusting block 19 slides in the sliding rail 13, the limiting pin 20 on the outer surface of the adjusting block 19 is separated from the limiting position on the inner surface of the shell 1 along with the sliding process of the adjusting block 19, at this time, the telescopic blades 12 are pulled towards the inside of the shell 1 under the action of the buffer seat 16 on the lower surfaces of the telescopic blades 12, so that the telescopic blades 12 are contracted to the inside of the shell 1, the contact area between the shell 1 and wind power is reduced, the shell 1 is prevented from rotating too fast, overload operation of equipment is caused, and the service life of the equipment is prolonged.
At this moment, the shell 1 makes the ejector rod 7 outwards slide on the outer surface of the fixing ring 5 by the centrifugal force generated in the rotating process, when the ejector rod 7 slides on the outer surface of the fixing ring 5, the ejector rod 7 pulls the speed reduction sheet 9 to be close to the rotating shaft 2 through the pull rod 8, so that the inner surface of the speed reduction sheet 9 is in mutual contact with the outer surface of the rotating shaft 2, the resistance of the rotating shaft 2 in the rotating process is increased, the rotating speed of the rotating shaft 2 is reduced, the normal operation of equipment is protected, and the irreversible damage caused by the equipment is avoided.
When the adjustable blade device is used, when the shell 1 rotates on the outer surface of the rotating shaft 2, if external wind power is increased, the rotating speed of the shell 1 on the outer surface of the rotating shaft 2 is increased along with the increase of the wind power, at the moment, centrifugal force generated in the rotating process of the shell 1 enables the ejector rod 7 to slide outwards on the outer surface of the fixing ring 5, when the ejector rod 7 slides on the outer surface of the fixing ring 5, the adjusting block 19 is pushed to slide in the sliding rail 13, at the moment, the adjusting block 19 slides in the opposite direction in the sliding rail 13, when the adjusting block 19 slides in the sliding rail 13, the limiting pin 20 on the outer surface of the adjusting block 19 is separated from the limiting position of the inner surface of the shell 1 along with the sliding process of the adjusting block 19, at the moment, under the action of the buffer seat 16 on the lower surface of the telescopic blade 12, the telescopic blade 12 is pulled towards the inner, the contact area between the shell 1 and wind power is reduced, the shell 1 is prevented from rotating too fast, overload operation of equipment is prevented, and the service life of the equipment is prolonged.
Meanwhile, when the shell 1 rotates on the outer surface of the rotating shaft 2, if external wind power is increased, the rotating speed of the shell 1 on the outer surface of the rotating shaft 2 is increased along with the increase of the wind power, at the moment, centrifugal force generated by the shell 1 in the rotating process enables the ejector rod 7 to slide outwards on the outer surface of the fixing ring 5, when the ejector rod 7 slides on the outer surface of the fixing ring 5, the ejector rod 7 pulls the decelerating sheet 9 to be close to the rotating shaft 2 through the pull rod 8, the inner surface of the decelerating sheet 9 is in contact with the outer surface of the rotating shaft 2, the resistance of the rotating shaft 2 in the rotating process is increased, the rotating speed of the rotating shaft 2 is reduced, normal operation of equipment is protected, and.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an environment-friendly wind power generation set with self-protect function, includes casing (1), its characterized in that: the outer surface of the shell (1) is connected with telescopic blades (12) in a sliding mode, the inner portion of the shell (1) is fixedly connected with a fixing ring (5), the inner portion of the fixing ring (5) is fixedly connected with a rotating shaft (2), the inner surface of the fixing ring (5) is fixedly connected with a limiting seat (4), the outer surface of the limiting seat (4) is fixedly connected with a connecting plate (10), one end, far away from the limiting seat (4), of the connecting plate (10) is fixedly connected with a limiting frame (3), the inner portion of the limiting frame (3) is elastically connected with a top rod (7) through a limiting spring (11), the outer surface of the rotating shaft (2) is wound with speed reduction sheets (9), the top ends of the speed reduction sheets (9) are connected with pull rods (8) in a mixed mode, and one ends, far away from the speed reduction sheets (9), of the;
the inner part of the fixing ring (5) is fixedly connected with a connecting seat (6) on two sides of the limiting seat (4), the inner part of the telescopic blade (12) is fixedly connected with a sliding rail (13), the bottom end of the sliding rail (13) is rotatably connected with a spring connecting rod (15), one end, away from the telescopic blade (12), of the spring connecting rod (15) is rotatably connected with a sliding sleeve (17), the outer surface of the sliding sleeve (17) is fixedly connected with a connecting support (18), the lower surface of the connecting support (18) is fixedly connected with the outer surface of the fixing ring (5), the bottom end of the telescopic blade (12) is fixedly connected with a push rod (14), the bottom end of the push rod (14) is rotatably connected with a buffer seat (16), the outer surface of the buffer seat (16) is fixedly connected with the inner surface of the shell (1), and the inner part of the sliding, the lower surface fixedly connected with telescopic link (21) of regulating block (19), the outside fixedly connected with spacer pin (20) of regulating block (19).
2. The environment-friendly wind power generation device with the self-protection function according to claim 1, wherein: the telescopic rod (21) penetrates through the inner surface of the telescopic blade (12), and the telescopic rod (21) is connected with the inner surface of the shell (1) in a clamping mode.
3. The environment-friendly wind power generation device with the self-protection function according to claim 1, wherein: the number of the adjusting blocks (19) is two, and the adjusting blocks (19) are arranged inside the sliding rail (13) in a bilateral symmetry mode by taking the vertical center line of the telescopic blades (12) as the center line.
4. The environment-friendly wind power generation device with the self-protection function according to claim 1, wherein: the size of the sliding sleeve (17) is matched with that of the ejector rod (7), and the sliding sleeve (17) is connected with the ejector rod (7) in a sliding mode.
5. The environment-friendly wind power generation device with the self-protection function according to claim 1, wherein: the size of pivot (2) and the size looks adaptation of retarder (9), pivot (2) are kept away from with retarder (9) mutually.
6. The environment-friendly wind power generation device with the self-protection function according to claim 1, wherein: the bottom of ejector pin (7) is provided with the balancing weight, the material of balancing weight is the stainless steel.
CN202011616942.4A 2020-12-31 2020-12-31 Environment-friendly wind power generation device with self-protection function Active CN112814840B (en)

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CN112814840B CN112814840B (en) 2024-05-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI798045B (en) * 2022-04-07 2023-04-01 金大仁 Wind blade arm length automatic adjustment mechanism of wind turbine

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5599168A (en) * 1995-08-23 1997-02-04 Lund; Arnold M. Wind turbine adaptable to wind direction and velocity
KR200408178Y1 (en) * 2005-11-23 2006-02-07 (주) 썬에어로시스 The Wind turbine blade pitch control device
CN101487445A (en) * 2009-02-25 2009-07-22 陈小兵 Rotary-vane vertical wind energy engine
KR100934432B1 (en) * 2009-03-03 2009-12-29 도민영 Wind powered generator
US20130216378A1 (en) * 2012-02-16 2013-08-22 Clipper Windpower, Llc Passive Governor for Windpower Applications
JP2014118941A (en) * 2012-12-19 2014-06-30 Yagi Seisakusho Co Ltd Wind turbine and wind turbine generator
CN206458566U (en) * 2017-02-13 2017-09-01 王书奎 A kind of automatic adjustable vertical wind power generator
CN109653953A (en) * 2018-12-26 2019-04-19 李善祥 A kind of novel artificial intelligent wind power power generator
CN111852770A (en) * 2020-07-29 2020-10-30 环誉节能科技(广州)有限公司 Blade speed-limiting protection braking device for wind power generation
CN112065665A (en) * 2020-09-14 2020-12-11 陈晓娜 Wind power generation equipment with protection function and taking new energy as power
CN112145355A (en) * 2020-09-24 2020-12-29 牟来华 Energy-saving power generation equipment with area increasing function for wind power generation fan blades

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5599168A (en) * 1995-08-23 1997-02-04 Lund; Arnold M. Wind turbine adaptable to wind direction and velocity
KR200408178Y1 (en) * 2005-11-23 2006-02-07 (주) 썬에어로시스 The Wind turbine blade pitch control device
CN101487445A (en) * 2009-02-25 2009-07-22 陈小兵 Rotary-vane vertical wind energy engine
KR100934432B1 (en) * 2009-03-03 2009-12-29 도민영 Wind powered generator
US20130216378A1 (en) * 2012-02-16 2013-08-22 Clipper Windpower, Llc Passive Governor for Windpower Applications
JP2014118941A (en) * 2012-12-19 2014-06-30 Yagi Seisakusho Co Ltd Wind turbine and wind turbine generator
CN206458566U (en) * 2017-02-13 2017-09-01 王书奎 A kind of automatic adjustable vertical wind power generator
CN109653953A (en) * 2018-12-26 2019-04-19 李善祥 A kind of novel artificial intelligent wind power power generator
CN111852770A (en) * 2020-07-29 2020-10-30 环誉节能科技(广州)有限公司 Blade speed-limiting protection braking device for wind power generation
CN112065665A (en) * 2020-09-14 2020-12-11 陈晓娜 Wind power generation equipment with protection function and taking new energy as power
CN112145355A (en) * 2020-09-24 2020-12-29 牟来华 Energy-saving power generation equipment with area increasing function for wind power generation fan blades

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI798045B (en) * 2022-04-07 2023-04-01 金大仁 Wind blade arm length automatic adjustment mechanism of wind turbine

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Effective date of registration: 20231226

Address after: Room 408-8, 4th Floor, Building 2, Haichuang Technology Center, Cangqian Street, Yuhang District, Hangzhou City, Zhejiang Province, 313000

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