WO2010131376A1 - Vertically long blades for vertical axis wind wheel - Google Patents

Vertically long blades for vertical axis wind wheel Download PDF

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Publication number
WO2010131376A1
WO2010131376A1 PCT/JP2009/060661 JP2009060661W WO2010131376A1 WO 2010131376 A1 WO2010131376 A1 WO 2010131376A1 JP 2009060661 W JP2009060661 W JP 2009060661W WO 2010131376 A1 WO2010131376 A1 WO 2010131376A1
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Prior art keywords
blade
vertical
movable
wind turbine
movable blade
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PCT/JP2009/060661
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French (fr)
Japanese (ja)
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鈴木　政彦
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株式会社グローバルエナジー
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Priority to AU2009346320A priority Critical patent/AU2009346320A1/en
Priority to BRPI0924247A priority patent/BRPI0924247A2/en
Priority to SG2011082526A priority patent/SG175970A1/en
Publication of WO2010131376A1 publication Critical patent/WO2010131376A1/en

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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
    • 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
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/214—Rotors for wind turbines with vertical axis of the Musgrove or "H"-type
    • 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
    • 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
    • F05B2260/00—Function
    • F05B2260/90—Braking
    • F05B2260/901—Braking using aerodynamic forces, i.e. lift or drag
    • F05B2260/9011—Braking using aerodynamic forces, i.e. lift or drag of the tips of rotor blades
    • 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

Abstract

Vertically long blades for a wind wheel, wherein movable blades which are rocked by centrifugal force when the vertically long blades rotate are mounted to the rear ends of the vertically long blades in the rotation direction thereof.  In a high-speed wind, the braking effect of the movable blades maintains the rotational speed of the wind wheel at a specific level. Vertically long blades of a vertical axis wind wheel are mounted through support arms (5) in a vertically extending manner around a vertical main shaft (2) of the vertical axis wind wheel.  Movable blades (7) are mounted to the rear ends of main body sections (6A) in the rotation direction thereof so that the movable blades can be rocked by centrifugal force caused by rotation of the wind wheel.

Description

縦軸風車における縦長翼Longitudinal blades in a vertical wind turbine
　本発明は、垂直回転軸の周りに、複数のブレード、すなわち縦長翼を、支持杆を介して配設してなる縦軸風車における縦長翼に係り、特に強風の時にも、縦長翼がブレーキ作用をして、回転速度を可及的に一定に維持するようにした縦軸風車における縦長翼に関する。 The present invention relates to a vertical blade in a vertical wind turbine in which a plurality of blades, that is, vertical blades are arranged around a vertical rotating shaft via a support rod, and the vertical blades act as a brake even in the case of strong winds. Thus, the present invention relates to a longitudinal blade in a vertical wind turbine in which the rotational speed is kept as constant as possible.
　一般の縦軸風車における翼は、縦長で、縦主軸の周囲を回転するように、支持アームを介して縦主軸に配設されている。特開２００３－３４３４１４号公報には、縦軸風車における縦長翼の回転方向の後部を、風力によって屈曲することが述べられている。 The blades in a general vertical wind turbine are vertically long and are arranged on the vertical main shaft via a support arm so as to rotate around the vertical main shaft. Japanese Patent Application Laid-Open No. 2003-343414 describes that the rear part of the longitudinal blades in the longitudinal wind turbine is bent by wind force.
　従来の縦軸風車においては、回転数を、電気的又は機械的に制御している。そのため、風速の変動を瞬時に制御することは不可能であった。
　従って、この風車を風力発電機に使用したとき、出力電圧が常に変動することとなり、風速に関わりなく、風車の回転速度、ひいては出力電圧を一定の範囲に維持させることは困難である。 In the conventional vertical wind turbine, the rotational speed is controlled electrically or mechanically. Therefore, it was impossible to instantaneously control the fluctuation of the wind speed.
Therefore, when this windmill is used for a wind power generator, the output voltage constantly fluctuates, and it is difficult to maintain the rotational speed of the windmill and thus the output voltage within a certain range regardless of the wind speed.
　また、縦軸風車における縦長翼は、台風のような強風によって、折損したり、回転速度が上りすぎて、風車全体の破壊を招いたりする虞がある。
　特開２００３－３４３４１４号公報に記載の風車は、縦長翼の回転方向の後部を、柔軟な素材からなるものとし、風速が一定値を超えたときに、縦長翼の回転方向の後部が撓曲するようにしたものであるが、縦長翼は回転するので、一定の方向から風が吹くとき、縦長翼の回転方向の後部が遠心方向へ撓曲し、次の瞬間には、軸方向へ撓曲するということを反復するため、ロスが生じる。 Further, the vertical blades in the vertical wind turbine may be broken by a strong wind such as a typhoon, or the rotational speed may be excessively increased and the entire wind turbine may be destroyed.
The wind turbine described in Japanese Patent Laid-Open No. 2003-343414 is made of a flexible material at the rear part of the longitudinal blades in the rotational direction, and when the wind speed exceeds a certain value, the rear part of the longitudinal blades in the rotational direction is bent. However, since the vertical blades rotate, when the wind blows from a certain direction, the rear part of the vertical blades rotates in the centrifugal direction, and at the next moment, it deflects in the axial direction. Loss is caused by repeating the song.
　本発明は、一定以上の風速の風を受けたとき、縦長翼の一部が遠心方向へ移動することにより、ブレーキ作用を発揮させて、風車の回転速度を制御し、回転速度を一定の範囲に維持しうるようにした縦軸風車における縦長翼を提供することを目的としている。 The present invention controls the rotational speed of the windmill by controlling the rotational speed of the windmill by exerting a braking action by moving a part of the longitudinal blades in the centrifugal direction when receiving wind with a wind speed above a certain level. It is an object of the present invention to provide a longitudinal wing in a vertical axis wind turbine that can be maintained in the above manner.
　上記目的を達成するための本発明の具体的な手段は、次の通りである。 Specific means of the present invention for achieving the above object are as follows.
（１）　 縦軸風車の縦主軸の周囲に、支持アームを介して縦長に配設されている縦長翼であって、主体部の回転方向の後端部に、回転時の遠心力により遠心方向に揺動しうるように可動翼を配設する。 (1) Longitudinal wings arranged vertically around the vertical main shaft of the vertical wind turbine via a support arm, and in the centrifugal direction due to centrifugal force during rotation at the rear end in the rotational direction of the main part The movable wing is arranged so as to be able to swing.
（２）　上記（１）において、主体部の上下端部に、主軸方向へ向かって傾斜する傾斜部を形成し、かつ、上下の内向傾斜部の基端部の間において、主体部の回転方向の後端部に、可動翼を配設する。 (2) In the above (1), the upper and lower ends of the main body are formed with inclined portions that are inclined toward the main axis direction, and the rotation direction of the main body is between the base end portions of the upper and lower inward inclined portions. A movable wing is disposed at the rear end portion.
（３）　上記（２）において、可動翼の上下端部を、前記内向傾斜部の基端部で覆う。 (3) In the above (2), the upper and lower end portions of the movable wing are covered with the base end portion of the inwardly inclined portion.
（４）　前記（１）～（３）のいずれかに記載の縦軸風車の縦長翼において、可動翼を、ヒンジを介して主体部に裝着し、かつ可動翼と主体部との間に、復元手段を配設する。 (4) In the longitudinal wing of the vertical axis wind turbine according to any one of (1) to (3), the movable wing is attached to the main portion via a hinge, and the movable wing is interposed between the movable wing and the main portion. A restoring means is provided.
（５）　前記（４）に記載の縦軸風車の縦長翼おいて、可動翼のヒンジは、可動翼におけるベアリングを主体部の支軸に嵌合して形成されている。 (5) In the longitudinal blade of the vertical wind turbine described in (4) above, the hinge of the movable blade is formed by fitting a bearing in the movable blade to the support shaft of the main part.
（６）　前記（５）に記載の縦軸風車の縦長翼おいて、可動翼のヒンジは、主体部の後縁と可動翼の前縁とを連結する、彈力片により形成されている。 (6) In the longitudinal wing of the vertical wind turbine described in (5) above, the hinge of the movable wing is formed by a repulsion piece that connects the rear edge of the main portion and the front edge of the movable wing.
（７）　前記（６）において、可動翼のヒンジは、主体部後縁と可動翼前縁との間を、彈性板により連結され、彈性板は復元手段を兼ねている。 (7) In the above (6), the hinge of the movable blade is connected between the trailing edge of the main part and the movable blade front edge by a coasting plate, and the coasting plate also serves as a restoring means.
（８）　前記（１）～（７）のいずれかにおいて、可動翼の自由端部には、重錘を設けてある。 (8) In any one of (1) to (7), a weight is provided at the free end of the movable wing.
（９）　前記（８）に記載の縦軸風車において、可動翼における重錘は、縦長翼の回転が一定の回転速度を超えた時に、遠心力により、可動翼の自由端部を遠心方へ移動させるような重量を具備している。 (9) In the vertical axis wind turbine described in (8) above, the weight of the movable wings causes the free end of the movable wings to centrifuge by centrifugal force when the rotation of the vertical wings exceeds a certain rotational speed. It has a weight that can be moved.
（１０）　前記（８）又は（９）において、可動翼の重錘は、可動翼の前後に移動可能に装着されている。　　  (10) In the above (8) or (9), the weight of the movable wing is mounted so as to be movable before and after the movable wing.
（１１）　前記（８）～（１０）のいずれかにおいて、可動翼の重錘を、小型のもの数個からなるものとする。 (11) In any one of (8) to (10), the weight of the movable blade is composed of several small ones.
　本発明によると次のような効果が奏せられる。 According to the present invention, the following effects can be achieved.
　前記（１）に記載の縦軸風車の縦長翼によると、主体部の回転方向の後部に可動翼が装着されているので、縦長翼が一定の回転速度を超えると、遠心力で可動翼が揺動して、その自由端部を遠心方向へ突出させる。従って、可動翼に抗力がかかり、縦長翼の回転は一定の回転速度内に維持される。
　回転速度が低下すると、遠心力も低下するので、可動翼は、次第に元の位置に復元する。従って、高速風が吹いていても、一定の回転速度以上の回転は抑止され、縦長翼の回転速度は、一定の範囲内に維持される。その結果、風力発電の場合には、出力電圧を一定の範囲に維持させることができる。
　風車が完全停止している時に高速風が当ると、風圧による損傷が生じるが、縦長翼が回転している時には、回転によって風力が移動するため、縦長翼の破損や機械の損傷が回避される。
　風力が低下すると、遠心力も低下して、可動翼の自由端部は、元の位置へ復元する。 According to the longitudinal blades of the vertical wind turbine described in (1) above, since the movable blades are attached to the rear of the main body in the rotational direction, when the longitudinal blades exceed a certain rotational speed, the movable blades are caused by centrifugal force. It swings and its free end protrudes in the centrifugal direction. Therefore, drag is applied to the movable blade, and the rotation of the vertically long blade is maintained within a constant rotational speed.
When the rotational speed decreases, the centrifugal force also decreases, so that the movable blade gradually recovers to its original position. Therefore, even if high-speed wind is blowing, rotation above a certain rotation speed is suppressed, and the rotation speed of the longitudinal blades is maintained within a certain range. As a result, in the case of wind power generation, the output voltage can be maintained in a certain range.
When high speed wind hits when the wind turbine is completely stopped, damage due to wind pressure occurs, but when the vertical blades are rotating, the wind power is moved by rotation, so that the vertical blades and mechanical damage are avoided. .
When the wind force decreases, the centrifugal force also decreases, and the free end of the movable wing is restored to its original position.
　前記（２）に記載の縦軸風車の縦長翼では、主体部の上下端部に主軸方向へ向って傾斜する傾斜部が形成され、その傾斜部より内側で、主体部の回転後部に可動翼が裝着されているので、回転時に主体部の翼端方向へ気流が拡散しようとしても、傾斜部で抑制され、専ら回転方向の後方へ流れる。
　高速風により、縦長翼が一定の回転速度を超えると、遠心力によって、可動翼の自由端部が遠心方へ移動し、前記傾斜部で拡散が抑制された気流が、可動翼の方へ流れ、可動翼を遠心方へ押出す。
　遠心方へ突出した可動翼には、抗力がかかり、ブレーキ作用をし、縦長翼の回転速度が低下するので、それ以上の高速回転をしなくなる。風速が低下すると、遠心力も低下するので、可動翼は元の位置に復元する。 In the longitudinal blades of the vertical wind turbine described in (2) above, inclined portions that incline toward the main axis direction are formed at the upper and lower ends of the main portion, and the movable blades are formed at the inner side of the inclined portion and at the rotating rear portion of the main portion. Therefore, even if the airflow tries to diffuse toward the blade tip of the main body during rotation, it is suppressed by the inclined portion and flows exclusively in the rear in the rotation direction.
When the vertical blade exceeds a certain rotational speed due to high-speed wind, the free end of the movable blade moves to the centrifugal direction due to the centrifugal force, and the airflow whose diffusion is suppressed by the inclined portion flows toward the movable blade. Extrude the movable blade to the centrifugal direction.
The movable blade protruding in the centrifugal direction is subjected to a drag, acts as a brake, and the rotational speed of the vertically long blade decreases, so that it does not rotate further. When the wind speed decreases, the centrifugal force also decreases, so the movable wing is restored to its original position.
　前記（３）に記載の縦軸風車の縦長翼では、可動翼の上下端部が、傾斜部の傾斜基端部で覆われているので、回転時に、主体部から翼端方へ拡散されようとする風流が、傾斜部で抑制されて可動翼の方へ流動し、可動翼に効果的に作用する。 In the longitudinal blade of the vertical wind turbine described in (3) above, the upper and lower end portions of the movable blade are covered with the inclined base end portion of the inclined portion, so that it will be diffused from the main portion toward the blade end during rotation. The wind flow is suppressed by the inclined portion and flows toward the movable blade, and effectively acts on the movable blade.
　前記（４）に記載の縦軸風車の縦長翼では、可動翼はヒンジを介して主体部に裝着されているので、ヒンジ部を支点に可動翼の揺動が容易であり、かつ主体部と可動翼の間に、復元手段が介在しているため、風速が低下すると、復元手段による、可動翼の姿勢復元が容易におこなわれる。 In the longitudinal wing of the vertical wind turbine described in (4) above, the movable wing is attached to the main body via a hinge, so that the movable wing can be easily swung with the hinge as a fulcrum. Since the restoring means is interposed between the movable blades, when the wind speed decreases, the posture of the movable blades can be easily restored by the restoring means.
　前記（５）に記載の縦軸風車の縦長翼では、可動翼のヒンジ部分にベアリングが使用されているので、可動翼の揺動が円滑におこなわれる。 In the longitudinal blade of the vertical wind turbine described in (5) above, since the bearing is used for the hinge portion of the movable blade, the movable blade is smoothly swung.
　前記（６）に記載の縦軸風車の縦長翼では、可動翼が、ヒンジを介して主体部に裝着されているので、可動翼の自由端部の揺動が容易である。またヒンジは彈力片で連結されているので、可動翼の自由端部の揺動が容易であり、かつ発錆の虞はなく、耐候性に優れている。 In the longitudinal blade of the vertical wind turbine described in (6) above, since the movable blade is attached to the main body via a hinge, the free end of the movable blade can be easily swung. Further, since the hinge is connected by a repulsion piece, the free end of the movable blade can be easily swung, there is no risk of rusting, and the weather resistance is excellent.
　前記（７）に記載の縦軸風車の縦長翼においては、可動翼のヒンジが彈性板で形成され、かつ復元手段を兼ねているので、可動翼に遠心力がかかると揺動し、回転速度が低下すると弾性板の彈力性によって自然に元の位置に復元する。 In the longitudinal blade of the vertical wind turbine described in (7) above, the hinge of the movable blade is formed of a coasting plate and also serves as a restoring means, so that it swings when a centrifugal force is applied to the movable blade, and the rotational speed When it decreases, it naturally restores to its original position by the repulsive force of the elastic plate.
　前記（８）に記載の縦軸風車の縦長翼においては、可動翼の自由端部には、重錘が設けられているので、縦長翼の回転に伴い遠心力が作用すると、可動翼の自由端部は、容易に遠心方へ突出してブレーキ作用をする。 In the vertical wing of the vertical wind turbine described in (8) above, since the weight is provided at the free end of the movable wing, when the centrifugal force acts as the vertical wing rotates, the free wing of the movable wing The end portion easily protrudes in the centrifugal direction to act as a brake.
　前記（９）に記載の縦軸風車の縦長翼は、回転が一定の回転速度を超えた時に、遠心力で、可動翼の自由端部を遠心方向へ移動させるに、十分な重量の重錘けられているので、一定の回転数をこえると、風力や復元手段に抗して、重錘が遠心力で可動翼の自由端部を遠心方向へ移動させて、ブレーキ作用をし、風速が低下すると、復元手段により、可動翼は元の位置に戻るので、縦長翼の回転速度を、一定の範囲に維持させることができる。 The vertical blade of the vertical axis wind turbine described in (9) is a weight sufficiently heavy to move the free end of the movable blade in the centrifugal direction by centrifugal force when the rotation exceeds a certain rotational speed. Therefore, if the rotation speed exceeds a certain value, the weight will move the free end of the movable wing in the centrifugal direction against the wind force and the restoring means, and will act as a brake, and the wind speed will be reduced. When lowered, the movable blade returns to the original position by the restoring means, so that the rotational speed of the longitudinal blade can be maintained within a certain range.
　前記（１０）に記載の縦軸風車の縦長翼において、可動翼の重錘は、可動翼の前後方向へ移動可能としてあるので、可動翼の揺動を、回転数で調節するために、重錘の位置を移動して調節することができる。 In the longitudinal blade of the vertical wind turbine described in (10) above, the weight of the movable blade is movable in the front-rear direction of the movable blade. Therefore, in order to adjust the swing of the movable blade by the number of rotations, The position of the weight can be moved and adjusted.
　前記（１１）記載の縦軸風車の縦長翼において、可動翼の重錘は、小型のものを複数使用しているので、台風などで縦長翼が破壊された時でも、他物に大きな打撃を与えることがない。 In the longitudinal wing of the vertical wind turbine described in (11) above, since the movable wing weights use a plurality of small weights, even if the longitudinal wing is destroyed by a typhoon or the like, a large blow is caused to other things. Never give.
本発明に係る縦軸風車の実施例１の正面図である。It is a front view of Example 1 of a vertical axis windmill concerning the present invention. 同じく平面図である。It is also a plan view. 同じく縦長翼の内側面図である。Similarly, it is an inner side view of a vertically long wing. 図３におけるIV－IV線拡大断面図である。FIG. 4 is an enlarged sectional view taken along line IV-IV in FIG. 3. 実施例２における縦長翼の横断平面図である。FIG. 6 is a cross-sectional plan view of a longitudinal wing in Example 2. 実施例３における縦長翼の内側面図である。FIG. 10 is an inner side view of a vertically long wing in Example 3. 図６におけるVII－VII線拡大断面図である。It is the VII-VII line expanded sectional view in FIG. 実施例４における縦長翼の横断平面図である。It is a cross-sectional top view of the longitudinally long wing | blade in Example 4. FIG.
　縦軸風車の縦長翼の回転方向の後部に、回転時に遠心力により揺動しうる可動翼を裝着した。 A movable blade that can be swung by centrifugal force during rotation is attached to the rear of the longitudinal blade of the vertical wind turbine.
　本発明の実施例１を、図面を参照して説明する。風車１における縦主軸２の上端にハウジング３を固定してあり、ハウジング３の上側に、回転体４を旋回可能に配設してある。回転体４には、支持アーム５を介して、縦長翼６を取付けてある。
　縦長翼６は樹脂成形体であり、その枚数は、１枚～５枚の範囲で任意である。 A first embodiment of the present invention will be described with reference to the drawings. A housing 3 is fixed to an upper end of the vertical main shaft 2 in the windmill 1, and a rotating body 4 is disposed on the upper side of the housing 3 so as to be rotatable. A vertical blade 6 is attached to the rotating body 4 via a support arm 5.
The longitudinal blades 6 are resin molded bodies, and the number of the blades is arbitrary in the range of 1 to 5 sheets.
　ハウジング３内には、図示しない発電装置が配設され、回転体４内には、図示しない磁石が配設されている。縦長翼６の回転に伴ない、回転体４が回転することによって、図示しない発電装置が発電をする。 In the housing 3, a power generation device (not shown) is arranged, and in the rotating body 4, a magnet (not shown) is arranged. With the rotation of the vertically long blades 6, the rotating body 4 rotates, whereby a power generator (not shown) generates power.
　縦長翼６における縦長の主体部６Ａの上下端部には、縦主軸２方向へ傾斜する傾斜部６Ｂが連設されている。図３において、右側が回転方向の前部、左側が回転方向の後部である。縦長翼６における、上下の内向き傾斜部６Ｂ,６Ｂの基端部６Ｃ,６Ｃ間において、主体部６Ａの回転方向の後部に、可動翼７を装着してある。　可動翼７は縦長翼６における主体部６Ａの後縁の延長面上にあり、その自由端部である後部には、重錘８を裝着している。装着方法は埋設その他、手段は任意である。  An inclined portion 6B that is inclined in the direction of the longitudinal main shaft 2 is connected to upper and lower ends of the vertically long main portion 6A of the vertically long blade 6. In FIG. 3, the right side is the front part in the rotational direction, and the left side is the rear part in the rotational direction. A movable blade 7 is mounted on the rear portion of the main portion 6A in the rotational direction between the base end portions 6C and 6C of the upper and lower inwardly inclined portions 6B and 6B of the vertically long blade 6. The movable blade 7 is on the extended surface of the rear edge of the main portion 6A of the vertically long blade 6, and a weight 8 is attached to the rear portion which is a free end portion thereof. The mounting method is buried and other means are arbitrary.
　可動翼７は、平面視において薄い板状であり、図４に示すように、その基端部に付設したヒンジ７Ａが、主体部６Ａの後縁に枢着されている。
　可動翼７と一体をなし、かつ、ヒンジ７Ａを中心として、重錘８の反対側へ突出する基端部のヒンジ７Ａに近接して形成された接触突体７Ｂの先端部は、主体部６Ａの空所６Ｄに固定されている、板バネからなる復元手段９に接触している。 The movable blade 7 has a thin plate shape in plan view, and as shown in FIG. 4, a hinge 7A attached to the base end portion thereof is pivotally attached to the rear edge of the main body portion 6A.
The distal end portion of the contact projection 7B formed integrally with the movable wing 7 and proximate to the hinge 7A at the proximal end projecting to the opposite side of the weight 8 around the hinge 7A is a main portion 6A. It is in contact with the restoring means 9 made of a leaf spring, which is fixed to the empty space 6D.
　上記の構成からなる、この風車１が回転し、縦長翼６が所定の速度よりも高速で回転すると、重錘８に作用する遠心力により、可動翼７は、図４に点線で示すように、ヒンジ７Ａを支点として、復元手段９に抗して遠心方向へ回動する。 When the wind turbine 1 having the above configuration rotates and the longitudinal blades 6 rotate at a speed higher than a predetermined speed, the movable blades 7 are caused to move as shown by dotted lines in FIG. Rotating in the centrifugal direction against the restoring means 9 with the hinge 7A as a fulcrum.
　その結果、縦長翼６の外側面に沿って流動する気流は、遠心方向へ突出した可動翼７で抑制されて、ブレーキの作用をするため、回転速度は低下する。
　回転速度の低下とともに、可動翼７にかかる遠心力も低下するので、接触突体７Ｂは、復元手段９により遠心方へ押され、可動翼７は縦長翼６の後縁の延長上にある元の位置に戻る。 As a result, the airflow flowing along the outer surface of the vertically long blade 6 is suppressed by the movable blade 7 protruding in the centrifugal direction and acts as a brake, so that the rotational speed decreases.
As the rotational speed decreases, the centrifugal force applied to the movable blade 7 also decreases. Therefore, the contact projection 7B is pushed to the centrifugal direction by the restoring means 9, and the movable blade 7 is located on the extension of the rear edge of the vertically long blade 6. Return to position.
　風速の変化に伴って回転速度も変化し、可動翼７に作用する遠心力も変化するので、可動翼７は、風速の強弱に準じて揺動を繰返し、風速が一定以下になると、元の位置に戻る。　　　　　　 
　これによって、他の回転制御手段を具備することなく、強風の時にも、縦長翼６は、自動的に一定の回転速度の範囲で回転することになる。 As the wind speed changes, the rotational speed also changes, and the centrifugal force acting on the movable blade 7 also changes. Therefore, the movable blade 7 repeats rocking according to the strength of the wind speed, and when the wind speed falls below a certain level, the original position Return to.
As a result, the vertical blade 6 automatically rotates in a range of a constant rotational speed even in a strong wind without providing other rotation control means.
　縦長翼６は、回転している限り、強風を受けても、気流は縦長翼６の表面に沿って移動するため、縦長翼６に強い風力は作用せず、縦長翼６の破損は抑止される。従って、縦長翼６が、強風の中で回転中は勿論、低速でも回転している限り、風力発電機として効率的に作用することとなる。 As long as the vertical blade 6 rotates, even if it receives strong wind, the airflow moves along the surface of the vertical blade 6, so that strong wind does not act on the vertical blade 6, and damage to the vertical blade 6 is suppressed. The Therefore, as long as the vertical blades 6 are rotating at a low speed as well as rotating in a strong wind, the long blades 6 can effectively function as a wind power generator.
　可動翼７における重錘８の重量を重くすると、縦長翼６の回転速度が遅くても、その遠心力により、可動翼７の揺動をさせることができる。一方、重錘８の重量を軽くすると、回転速度が一定以上にならないと、可動翼７は揺動することはない。 If the weight of the weight 8 in the movable blade 7 is increased, the movable blade 7 can be swung by the centrifugal force even if the rotational speed of the vertically long blade 6 is slow. On the other hand, if the weight 8 is lightened, the movable blade 7 will not oscillate unless the rotational speed becomes a certain level or higher.
　従って、重錘８の重量を調節することにより、その揺動の程度を任意に調節することができる。
　重錘８の重量の代わりに、またはこれに加えて、復元手段９の強さを加減することにより、可動翼７の揺動を制御することができる。 Therefore, by adjusting the weight of the weight 8, the degree of swinging can be arbitrarily adjusted.
Instead of or in addition to the weight of the weight 8, the swing of the movable blade 7 can be controlled by adjusting the strength of the restoring means 9.
　図５は、実施例２を示す縦長翼の要部横断平面図である。前例と同じ部位には、同じ符号を付して説明を省略する。
　この実施例２においては、可動翼１０の基端部と一体をなす彈力性に優れたゴム系の彈力片１０Ｂを一体的に設けることにより、ヒンジ１０Ａとしてある。このヒンジ１０Ａの基端部における彈力片１０Ｂは、縦長翼６の主体部６Ａの回転方向の後部空所６Ｄ内に嵌装されている。 FIG. 5 is a cross-sectional plan view of the main part of the vertically elongated wing showing the second embodiment. The same parts as those in the previous example are denoted by the same reference numerals and description thereof is omitted.
In the second embodiment, the hinge 10 </ b> A is formed by integrally providing a rubber-based repulsion piece 10 </ b> B excellent in repulsion that is integrated with the base end portion of the movable blade 10. The repulsion piece 10B at the base end portion of the hinge 10A is fitted in the rear space 6D in the rotation direction of the main body portion 6A of the vertically long blade 6.
　縦長翼６の回転に伴い、可動翼１０の後部における自由端部における重錘１１に遠心力が作用すると、彈力性のあるヒンジ１０Ａ部が撓曲して、可動翼１０の自由端部は遠心方向へ揺動する。 When the centrifugal force acts on the weight 11 at the free end of the rear portion of the movable blade 10 as the longitudinal blade 6 rotates, the repulsive hinge 10A portion is bent, and the free end portion of the movable blade 10 is centrifuged. Swing in the direction.
　その結果、縦長翼６の外側面よりも外方へ突出した可動翼１０は、ブレーキの作用をすることとなり、縦長翼６の回転速度は低下する。
　風速が低下すると、彈力性のあるヒンジ１０Ａ部が復元手段として作用し、可動翼１０の自由端部は、遠心方から元の位置へ戻る。その余のことは、実施例１と同じである。 As a result, the movable blade 10 protruding outward from the outer surface of the vertical blade 6 acts as a brake, and the rotational speed of the vertical blade 6 decreases.
When the wind speed is lowered, the repulsive hinge 10A portion acts as a restoring means, and the free end portion of the movable blade 10 returns to the original position from the centrifugal direction. The rest is the same as in the first embodiment.
　図６は、実施例３を示す縦長翼６の内側面図、図７は、図６におけるVII－VII線断面図である。前例と同じ部位には、同じ符号を付して説明を省略する。
　この実施例３における縦長翼６においては、内向傾斜部６Ｂが、可動翼１２の翼端部を覆うように形成されている。 6 is an inner side view of the vertically long blade 6 showing the third embodiment, and FIG. 7 is a sectional view taken along line VII-VII in FIG. The same parts as those in the previous example are denoted by the same reference numerals and description thereof is omitted.
In the vertically long blade 6 in the third embodiment, the inwardly inclined portion 6B is formed so as to cover the blade end portion of the movable blade 12.
　これによって、回転時において、主体部６Ａの翼端方向へ拡散されようとする風流が、内向傾斜部６Ｂで抑制されて、回転後方へ流動する風流は、可動翼１２の内側面を外側方へ流動して、効率よくブレーキ作用をさせることができる。 As a result, during rotation, the wind flow that is about to diffuse toward the blade tip of the main portion 6A is suppressed by the inwardly inclined portion 6B, and the wind flow that flows backward in the rotation causes the inner surface of the movable blade 12 to move outward. It can flow and brake effectively.
　ヒンジ１３については、可動翼１２側にベアリングを使用し、該ベアリングを縦長翼６の主体部６Ａに設けた支軸１３Ａで支承することによって、揺動が円滑におこなわれるようになっている。 The hinge 13 is smoothly oscillated by using a bearing on the movable blade 12 side and supporting the bearing by a support shaft 13A provided on the main portion 6A of the vertically long blade 6.
　重錘１４については、可動翼１２が台風などで破損したときに支障が生じないように、長さの短い物を、直列あるいは並列に内装してある。また重錘１４を、可動翼１２の外面からボルトあるいはピンをねじ込み式にすることができる。
　この重錘１４の前後位置により、可動翼１２の回転速度に伴うその回動の度合いを調節することができる。 About the weight 14, the thing with short length is internally mounted in series or in parallel so that trouble may not arise when the movable blade 12 is damaged by a typhoon or the like. Further, the weight 14 can be screwed from the outer surface of the movable blade 12 with a bolt or a pin.
The degree of rotation associated with the rotational speed of the movable wing 12 can be adjusted by the front and rear positions of the weight 14.
　図８は、実施例４を示す縦長翼６の横断平面図である。前例と同じ部位には、同じ符号を付して説明を省略する。復元手段については図示を省略した。
　この実施例４では、主体部６Ａと可動翼１５の間に、ヒンジ１６部分となる間隙を開けて、双方を被膜状の彈性板１７で被覆して連結したものである。 FIG. 8 is a cross-sectional plan view of the vertically elongated blade 6 showing the fourth embodiment. The same parts as those in the previous example are denoted by the same reference numerals and description thereof is omitted. The restoring means is not shown.
In the fourth embodiment, a gap serving as a hinge 16 portion is formed between the main body portion 6A and the movable wing 15 and both are covered and connected with a film-like coasting plate 17.
　弾性板１７は、図示省略した合成樹脂繊維を芯材として、それに彈性樹脂を被膜状に被着したもので、当該合成樹脂繊維は、テトロン、ビニロンその他の繊維の不織布、織物、編物などである。合成樹脂繊維は、弾力性と柔軟性を備えているので、多数回の屈曲にも、耐用性に優れたものとなる。 The elastic plate 17 is made of a synthetic resin fiber (not shown) as a core material, and is coated with a coasting resin in a film shape, and the synthetic resin fiber is a nonwoven fabric, woven fabric, knitted fabric or the like of tetron, vinylon, or the like. . Since the synthetic resin fiber has elasticity and flexibility, it is excellent in durability even when bent many times.
　なお、図８において重錘１８は、複数のボルトを使用し、外部から可動翼１５に螺合したものを示してある。これによって重錘１８全体の重量を、ボルトの数によって調節することができる。 In FIG. 8, the weight 18 is a screw that is screwed into the movable blade 15 from the outside using a plurality of bolts. Thereby, the weight of the entire weight 18 can be adjusted by the number of bolts.
　以上のように、本発明においては、縦長翼６の回転方向の後部に装着した可動翼７、１０、１２、１５が、風速の変化に伴う遠心力に応じて、その自由端部を遠心方向へ揺動させるので、頭初の設定だけを適切なものにしておけば、台風時にも放置しておいて、回転に伴って自然に生じる遠心力で、可動翼の揺動をさせ、それによるブレーキ作用によって、縦長翼６の回転速度を一定の範囲に維持させることができる。 As described above, in the present invention, the movable blades 7, 10, 12, and 15 attached to the rear portion of the longitudinal blade 6 in the rotational direction have their free ends in the centrifugal direction according to the centrifugal force accompanying the change in the wind speed. Therefore, if only the initial setting is appropriate, leave it at the time of the typhoon and let the movable wings oscillate with the centrifugal force that naturally occurs with rotation. Due to the braking action, the rotational speed of the longitudinal blades 6 can be maintained within a certain range.
　その結果、強風時に放置していても、縦長翼６が高速回転をすれば、遠心力により可動翼７、１０、１２、１５はブレーキ作用を行い、回転速度を一定の範囲に保持することができる。また、縦長翼６が回転している限り、一定の出力を継続するので、従来のように、強風時に停止させることに伴うロスがなくなる。 As a result, even if the long blade 6 rotates at a high speed even if it is left in a strong wind, the movable blades 7, 10, 12, and 15 perform a braking action by centrifugal force, and can maintain the rotation speed within a certain range. it can. Further, as long as the longitudinal blades 6 are rotating, a constant output is continued, so that there is no loss associated with stopping in a strong wind as in the prior art.
　なお本発明は、前記実施例に限定されるものではなく、目的に沿って適宜設計変更をすることができる。復元手段９は、可動翼が元の位置に戻るように作用するものなら、風の抵抗になったり回転効率を低下させたりしない限り、どのようなものでもかまわない。 It should be noted that the present invention is not limited to the above-described embodiment, and can be appropriately changed in design according to the purpose. The restoring means 9 may be anything as long as the movable wing operates to return to the original position as long as it does not cause wind resistance or reduce the rotation efficiency.
　本発明は、縦長翼の回転後部に可動翼を装着し、回転時の遠心力で可動翼の自由端部を揺動させて、ブレーキ作用をさせるので、強風の時に放置しておいても、一定の回転速度を超えることがない。従って、出力を一定に維持させる必要のある風力発電機に有利に利用することができる。 In the present invention, the movable blade is attached to the rear portion of the vertical blade, and the free end portion of the movable blade is swung by the centrifugal force at the time of rotation. It does not exceed a certain rotational speed. Therefore, it can be advantageously used for a wind power generator that needs to maintain a constant output.

Claims (11)

  1. 　縦軸風車の縦主軸の周囲に、支持アームを介して縦長に配設されている縦長翼において、主体部の回転方向の後端部に、可動翼を、回転時の遠心力によって揺動しうるようにして装着したことを特徴とする縦軸風車における縦長翼。 In a vertically long blade disposed vertically around a vertical main shaft of a vertical wind turbine via a support arm, a movable blade is swung by a centrifugal force during rotation at the rear end in the rotation direction of the main body. A vertically long wing in a vertical wind turbine characterized by being mounted in a movable manner.
  2. 　前記主体部の上下端部に、主軸方向へ向かって傾斜する内向傾斜部を形成し、かつ、上下の内向傾斜部の間において、主体部の回転方向の後端部に、可動翼を配設したことを特徴とする請求項１に記載の縦軸風車の縦長翼。 Inwardly inclined portions that incline toward the main axis direction are formed at the upper and lower end portions of the main body portion, and a movable blade is disposed at the rear end portion in the rotation direction of the main body portion between the upper and lower inwardly inclined portions. The longitudinally long blade of the vertical axis wind turbine according to claim 1.
  3. 　前記可動翼の上下端部を、前記傾斜部の傾斜基端部で覆ったことを特徴とする請求項２に記載の縦軸風車の縦長翼。 The longitudinally long blade of the vertical wind turbine according to claim 2, wherein upper and lower ends of the movable blade are covered with an inclined base end of the inclined portion.
  4. 　前記可動翼を、ヒンジを介して主体部に裝着し、かつ可動翼と主体部との間に、復元手段を配設したことを特徴とする請求項１～３のいずれかに記載の縦軸風車の縦長翼。 The longitudinal axis according to any one of claims 1 to 3, wherein the movable wing is attached to the main portion via a hinge, and a restoring means is disposed between the movable wing and the main portion. Longitudinal wing of an axial windmill.
  5. 　前記可動翼のヒンジは、可動翼におけるベアリングを主体部の支軸に嵌合して形成されていることを特徴とする請求項４に記載の縦軸風車の縦長翼。 The longitudinally long blade of the vertical wind turbine according to claim 4, wherein the hinge of the movable blade is formed by fitting a bearing in the movable blade to a support shaft of a main part.
  6. 　前記可動翼のヒンジは、主体部の後縁と可動翼の前縁とを連結する彈力片により形成されていることを特徴とする請求項４に記載の縦軸風車の縦長翼。 The vertical blade of a vertical axis wind turbine according to claim 4, wherein the hinge of the movable blade is formed by a repulsion piece that connects a rear edge of the main portion and a front edge of the movable blade.
  7. 　前記可動翼のヒンジは、主体部後縁と可動翼前縁との間を、彈性板により連結され、弾性板は復元手段を兼ねていることを特徴とする請求項４に記載の縦軸風車の縦長翼。 The vertical axis wind turbine according to claim 4, wherein the hinge of the movable blade is connected between the trailing edge of the main portion and the front edge of the movable blade by a coasting plate, and the elastic plate also serves as a restoring means. Vertical wings.
  8. 　前記可動翼の後端部には、重錘が装着してあることを特徴とする請求項１～７のいずれかに記載の縦軸風車の縦長翼。 The longitudinal blade of the vertical wind turbine according to any one of claims 1 to 7, wherein a weight is attached to a rear end portion of the movable blade.
  9. 　前記可動翼における重錘は、縦長翼の回転が一定の回転速度を超えた時に、遠心力により、可動翼の自由端部を遠心方へ移動させるような重量を具備していることを特徴とする請求項８に記載の縦軸風車の縦長翼。 The weight in the movable wing has a weight that causes the free end of the movable wing to move in the centrifugal direction by centrifugal force when the rotation of the vertical wing exceeds a certain rotational speed. The longitudinally long blade of the vertical axis wind turbine according to claim 8.
  10. 　前記可動翼の重錘は、可動翼の前後に移動可能に装着していることを特徴とする請求項８又は９に記載の縦軸風車の縦長翼。 The vertical blade of a vertical axis wind turbine according to claim 8 or 9, wherein the weight of the movable blade is mounted so as to be movable forward and backward of the movable blade.
  11. 　前記可動翼の重錘を、小型のものを複数固からなるものとしたことを特徴とする請求項８～１０のいずれかに記載の縦軸風車の縦長翼。 The vertical blade of the vertical wind turbine according to any one of claims 8 to 10, wherein the movable blade has a plurality of small weights.
PCT/JP2009/060661 2009-05-11 2009-06-11 Vertically long blades for vertical axis wind wheel WO2010131376A1 (en)

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AU2009346320A AU2009346320A1 (en) 2009-05-11 2009-06-11 Vertically long blades for vertical axis wind wheel
BRPI0924247A BRPI0924247A2 (en) 2009-05-11 2009-06-11 vertical blade on a vertical axis windmill
SG2011082526A SG175970A1 (en) 2009-05-11 2009-06-11 Vertical blade in a vertical axis windmill

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JP2009114330A JP4616918B2 (en) 2009-05-11 2009-05-11 Vertical wind turbine vertical wing

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DK178198B1 (en) * 2011-10-06 2015-08-03 Gen Electric Wind turbine rotor blade with a passively modified trailing edge component
DK178389B1 (en) * 2011-10-06 2016-01-25 Gen Electric Wind turbine rotor blade with passively modified trailing edge component

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CN102748207A (en) * 2012-08-13 2012-10-24 赵立华 blades and impeller of vertical-shaft wind power generator
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KR101450611B1 (en) * 2013-02-15 2014-10-15 주식회사 이앤씨 Wind turbine
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AU2009346320A1 (en) 2011-12-15
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JP4616918B2 (en) 2011-01-19
BRPI0924247A2 (en) 2016-01-26
TW201040387A (en) 2010-11-16

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