WO2006046337A1 - Windmill - Google Patents

Windmill Download PDF

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Publication number
WO2006046337A1
WO2006046337A1 PCT/JP2005/013515 JP2005013515W WO2006046337A1 WO 2006046337 A1 WO2006046337 A1 WO 2006046337A1 JP 2005013515 W JP2005013515 W JP 2005013515W WO 2006046337 A1 WO2006046337 A1 WO 2006046337A1
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WO
WIPO (PCT)
Prior art keywords
blades
wind
windmill
rear side
emboss
Prior art date
Application number
PCT/JP2005/013515
Other languages
French (fr)
Japanese (ja)
Inventor
Shozo Okuno
Original Assignee
Shozo Okuno
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shozo Okuno filed Critical Shozo Okuno
Priority to JP2006542250A priority Critical patent/JP4352344B2/en
Publication of WO2006046337A1 publication Critical patent/WO2006046337A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/061—Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles
    • 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
    • F05B2240/213—Rotors for wind turbines with vertical axis of the Savonius 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
    • F05B2240/32—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor with roughened surface
    • 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
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • 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

Definitions

  • the present invention relates to a windmill used as a power source for wind power generation or the like.
  • Wind turbines that are used as a driving force for wind power generation, etc. have anti-cause type in which the blades are made of plate material of a certain thickness and the anti-rotation of the blades receiving the wind is used as it is to rotate the rotating shaft, There is a lift type that uses a wing-like bulge on the cross section of the blade and converts the anti-wing force of the blade that receives the wind into lift.
  • vertical axis types such as Savonius type windmills, paddle type windmills, S-type rotors, etc. that turn the rotation axis in a direction substantially perpendicular to the direction of the wind, and the rotation axis
  • horizontal axis types such as propeller type windmills that face in the direction of the direction.
  • the anti-wind type wind turbine has a relatively small output compared to the lift type type wind turbine, but has the advantage that the blades can be easily manufactured from a plate of a certain thickness. Suitable for installation on the roof of a building.
  • Patent Document 1 Japanese Patent Laid-Open No. 2001-193628
  • Patent Document 2 Japanese Unexamined Patent Publication No. 2003-3945
  • Patent Document 3 Japanese Patent Application Laid-Open No. 2002-531771
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2004-52547
  • an object of the present invention is to provide an anti-winding type windmill that rotates efficiently even in a weak wind and has a small wind noise on the rear side of the blade.
  • the present invention provides a wind turbine in which the blades are formed of a plate material having a constant thickness and receives wind, and the rotation shaft is rotated using the blades of these blades as they are.
  • the blades forming the blades are thin, and the blades formed of the thin plates are provided with a number of embossments that are concave on the front side that receives wind and convex on the rear side.
  • a thin plate material is used to form the blades, and the blades formed of this thin plate material are provided with a number of embossments that are concave on the front side for receiving wind and convex on the rear side.
  • the blades can be easily manufactured at low cost using a press or the like.
  • the emboss as a spherical emboss, the wind resistance on the rear side of the blade can be reduced, and the wind noise can be further reduced.
  • the rigidity of the blades can be increased.
  • the height of the emboss is preferably 3 to 8 mm.
  • the height of the emboss is less than 3 mm, the effect of increasing the drag is small due to the concave shape on the front side of the blade, and when it exceeds 8 mm, the unevenness on the rear side of the blade becomes too large and wind noise tends to increase. Because it becomes.
  • the plate material forming the blades is thin-walled for the anti-power utilization type, and the blades formed of this thin plate material are concave on the front side receiving the wind and convex on the rear side. Because of the increased embossed shape, the anti-embossed concave shape on the front side increases the resistance of the blades that receive the wind, allowing it to rotate efficiently even in weak winds. Unevenness formed between other parts can reduce wind noise on the rear side of the blade. wear.
  • the blades can be easily manufactured at low cost using a press or the like.
  • the emboss as a spherical emboss, the wind resistance on the rear side of the blade can be reduced, and the wind noise can be further reduced.
  • FIG. 1 to 3 show a first embodiment.
  • This windmill is an anti-cavity Savonius type windmill, as shown in Fig. 1 and Fig. 2, upper and lower end plates 2 a attached to a vertical shaft 1 that is oriented substantially perpendicular to the direction of the wind. 2b, two semi-cylindrical blades 3 curved in a DA shape toward the front side receiving the wind are attached so that the centers are shifted and face each other.
  • the upper and lower end plates 2a and 2b are connected by vertical frames 4 attached to both ends of each blade 3 and two vertical bars 5 for reinforcement.
  • Each blade 3 is formed of a thin plate made of an aluminum alloy, and is provided with a number of spherical embosses 6 that are concave on the front side and convex on the rear side to receive the wind indicated by arrow A in FIG. Unevenness is formed by these 6 embossed parts and other parts.
  • This windmill rotates around the vertical axis 1 in the direction of arrow B.
  • the concave shape of the emboss 6 increases the drag of the blade 3 and rotates even in weak winds.
  • the wind noise can be reduced by the unevenness.
  • the emboss 6 is formed by embossing using a press and has a height of about 5 mm.
  • the embosses 6 are arranged in a staggered manner so that the rigidity of the blades 3 having a thin wall and a large surface area is ensured.
  • This windmill is a paddle type windmill that uses anti-cushion and has four semi-cylindrical blades 8 curved concavely toward the front side receiving wind at a phase of 90 ° around the vertical axis 7 and supporting rod 9 It is attached with. End blades 10 are attached to the upper and lower ends of each blade 8 to prevent the escape of wind up and down.
  • Each of the blades 8 is formed of a thin plate made of an aluminum alloy, as in the first embodiment, In Fig. 5, there are many spherical embosses 11 that are concave on the front side that receives the wind indicated by arrow A and convex on the rear side, and the rear side is concaved by these embossed 11 parts and other parts. Is formed.
  • the embossed 11 is also formed by embossing, and its height is about 5 mm and is arranged in a staggered pattern.
  • This windmill rotates around the vertical axis 7 in the direction of arrow B in Fig. 5, but when receiving wind on the front side of the blade 8, the concave shape of the embossed 1 1 increases the drag of the blade 8 and weakens In addition to rotating in the wind, when the wind is cut on the rear side of the blade 8, the unevenness can reduce the wind noise.
  • This windmill is an anti-propeller type windmill, with three blades 1 3 that receive the wind at an inclined surface around the horizontal axis 1 2 at a phase of 120 ° attached to the support rod 1 4 Is.
  • the blades 13 are also formed of a thin plate made of an aluminum alloy, and are concave on the front side that receives the wind indicated by the arrow A in FIGS. 6 and 7, and the rear surface.
  • a large number of convex spherical embosses 15 are provided on the side, and irregularities are formed on the rear side by these embossed 15 parts and other parts.
  • the embossed 15 is also formed by embossing and arranged in a staggered pattern.
  • the blades of each windmill are formed of a thin plate made of aluminum alloy, and the spherical emboss is formed by embossing, but the blades may be formed of other metal plates or plastic plates, plastic plates In the case of forming with, the emboss can be formed by injection molding.
  • the embossing is not limited to the spherical embossing, but can be of any shape. [Brief description of the drawings]
  • FIG. 1 is an external perspective view showing the wind turbine according to the first embodiment.
  • FIG. 4 is an external perspective view showing the wind turbine according to the second embodiment.
  • FIG. 6 is an external perspective view showing the wind turbine according to the third embodiment.

Landscapes

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

Abstract

[PROBLEMS] To provide a drag use type windmill efficiently rotating even if wind is weak and developing small wind noise at the rear of the blades thereof. [MEANS FOR SOLVING PROBLEMS] The blades (3) of the drag use savonius type windmill are formed of aluminum alloy thin-sheets, and a large number of spherical embosses (6) are formed on the blades (3) by a press so as to be recessed on the front side thereof receiving wind and protruded on the rear side thereof to increase the drag of the blades (3) receiving the wind by the recessed shapes of the embosses (6) on the front side so that the blades can be efficiently rotated even if the wind is weak and that the wind noise on the rear side of the blades (3) can be reduced by the recesses and protrusions formed between the protruded shapes of the embosses (6) on the rear side and the other portions.

Description

,j 風車  , j windmill
【技術分野】  【Technical field】
【0001】  [0001]
本発明は、 風力発電等の動力源として用いられる風車に関する。 The present invention relates to a windmill used as a power source for wind power generation or the like.
【背景技術】  [Background]
【0002】  [0002]
風力発電等の動源力として用いられる風車には、 羽根を一定厚みの板材で形成し、 風を受 ける羽根の抗カをそのまま利用して回転軸を回転させる抗カ利用型のものと、 羽根の断面 に翼状の膨らみを持たせ、 風を受ける羽根の抗カを揚力に変換して利用する揚力利用型の ものとがある。 なお、 回転軸の向きによって^類すると、 回転軸を風の向きと略直角方向 に向けるサボ二ウス型風車、パドル型風車、 S形ロータ等の垂直軸型のものと、 回転軸を風 の向きの方向に向けるプロペラ型風車等の水平軸型のものとがある。 Wind turbines that are used as a driving force for wind power generation, etc., have anti-cause type in which the blades are made of plate material of a certain thickness and the anti-rotation of the blades receiving the wind is used as it is to rotate the rotating shaft, There is a lift type that uses a wing-like bulge on the cross section of the blade and converts the anti-wing force of the blade that receives the wind into lift. In addition, depending on the direction of the rotation axis, vertical axis types such as Savonius type windmills, paddle type windmills, S-type rotors, etc. that turn the rotation axis in a direction substantially perpendicular to the direction of the wind, and the rotation axis There are horizontal axis types such as propeller type windmills that face in the direction of the direction.
【0003】  [0003]
前記抗カ利用型の風車は、 揚力利用型のものと較べると出力は比較的小さいが、 羽根を一 定厚みの板材から簡単に製造できる利点があるので、 小規模の風力発電用として、 街中で ビルの屋上等に設置するのに適している。 The anti-wind type wind turbine has a relatively small output compared to the lift type type wind turbine, but has the advantage that the blades can be easily manufactured from a plate of a certain thickness. Suitable for installation on the roof of a building.
【0004】  0004
—方、 上述した風車の型式に関わらず、 羽根の前面側に凹部を設けると、 風を受ける习习根 の抗カを増大させ、 風車の回転効率を向上できることが知られている （例えば、 特許: ¾献 1、 2参照)。 また、 揚力利用型のプロペラ型風車では、 風を切って回転する羽根の前後面 に凹凸を設けると風切り音が小さくなり、 風車の回転に伴う騒音を低減できることが^ 0ら れている （例えば、 特許文献 3、 4参照)。  -On the other hand, regardless of the type of windmill described above, it is known that if a recess is provided on the front side of the blade, the resistance of the root receiving the wind can be increased and the rotation efficiency of the windmill can be improved (for example, patent : See ¾, 1). In addition, in a propeller type wind turbine using lift, it is known that if the front and rear surfaces of the blades that rotate by turning the wind are uneven, the wind noise will be reduced, and the noise associated with the rotation of the wind turbine can be reduced (for example, And Patent Documents 3 and 4).
【0005】  [0005]
【特許文献 1】 特開 2001— 193628号公報  [Patent Document 1] Japanese Patent Laid-Open No. 2001-193628
【特許文献 2】 特開 2003— 3945号公報  [Patent Document 2] Japanese Unexamined Patent Publication No. 2003-3945
【特許文献 3】 特開 2002— 531771号公報  [Patent Document 3] Japanese Patent Application Laid-Open No. 2002-531771
【特許文 2】 特開 2004— 52547号公報  [Patent Document 2] Japanese Patent Application Laid-Open No. 2004-52547
【発明の開示】  DISCLOSURE OF THE INVENTION
【発明が解決しようとする課題】  [Problems to be solved by the invention]
【0006】  [0006]
上述した抗カ利用型の風車は、 街中でビルの屋上等に設置するのに適しているが、 羽 の 後面側での風切り音が大きく、 騒音の原因となる問題がある。 また、 街中ではあまり強い 風を期待できないので、 弱い風でも効率よく回転することが望まれる。 【0 0 0 7】 The above-described wind turbines using anti-cattles are suitable for installation on the rooftops of buildings in the city, but there is a problem that the wind noise on the rear side of the wings is large, causing noise. In addition, since strong winds cannot be expected in the city, it is desirable to rotate efficiently even in weak winds. [0 0 0 7]
そこで、 本発明の課題は、 弱い風でも効率よく回転し、 かつ、 羽根の後面側での風切り音 が小さい抗カ利用型の風車を提供することである。 Accordingly, an object of the present invention is to provide an anti-winding type windmill that rotates efficiently even in a weak wind and has a small wind noise on the rear side of the blade.
【課題を解決するための手段】  [Means for Solving the Problems]
【0 0 0 8】  [0 0 0 8]
上記の課題を解決するために、 本発明は、 羽根が一定厚みの板材で形成され、 風を受ける これらの羽根の抗カをそのまま利用して回転軸を回転させる抗カ利用型の風車において、 前記羽根を形成する板材を薄肉のものとし、 この薄肉の板材で形成した羽根に、 風を受け る前面側に凹で、 後面側に凸の多数のエンボスを設けた構成を採用した。 In order to solve the above-described problems, the present invention provides a wind turbine in which the blades are formed of a plate material having a constant thickness and receives wind, and the rotation shaft is rotated using the blades of these blades as they are. The blades forming the blades are thin, and the blades formed of the thin plates are provided with a number of embossments that are concave on the front side that receives wind and convex on the rear side.
【0 0 0 9】  [0 0 0 9]
すなわち、 羽根を形成する板材を薄肉のものとし、 この薄肉の板材で形成した羽根に、 風 を受ける前面側に凹で、 後面側に凸の多数のエンボスを設けることにより、 前面側のェン ボスの凹形状で風を受ける羽根の抗カを増大させて、 弱い風でも効率よく回転可能とする とともに、 後面側のエンボスの凸形状とその他の部分との間で形成される凹凸によって、 羽根の後面側での風切り賁を小さくできるようにした。 That is, a thin plate material is used to form the blades, and the blades formed of this thin plate material are provided with a number of embossments that are concave on the front side for receiving wind and convex on the rear side. By increasing the resistance of the blade that receives wind with the concave shape of the boss, it is possible to rotate efficiently even with weak wind, and the unevenness formed between the convex shape of the emboss on the rear side and other parts makes the blade It was made possible to reduce the wind culling on the rear side.
【0 0 1 0】  [0 0 1 0]
前記羽根を形成する板材を金属板とし、 前記エンボスをエンボス加工で形成することによ り、 プレス等を用いて、 羽根を安価で簡単に製造することができる。 By using a metal plate as the plate material forming the blades and forming the embossing by embossing, the blades can be easily manufactured at low cost using a press or the like.
【0 0 1 1】  [0 0 1 1]
前記エンボスを球面エンボスとすることにより、 羽根の後面側での風切り抵抗を少なくし、 風切り音をより小さくすることができる。 By using the emboss as a spherical emboss, the wind resistance on the rear side of the blade can be reduced, and the wind noise can be further reduced.
【0 0 1 2】  [0 0 1 2]
前記エンボスを千鳥状の配列で設けることにより、 羽根の剛性を高めることができる。 By providing the embosses in a staggered arrangement, the rigidity of the blades can be increased.
【0 0 1 3】  [0 0 1 3]
前記エンボスの高さは 3〜 8 mmとするのが好ましい。エンボスの高さが 3 mm未満では、 羽根の前面側の凹形状による抗力の増大効果が少なく、 8 mm を超えると、 羽根の後面側 での凹凸が大きくなり過ぎて、 風切り音が増大傾向となるからである。 The height of the emboss is preferably 3 to 8 mm. When the height of the emboss is less than 3 mm, the effect of increasing the drag is small due to the concave shape on the front side of the blade, and when it exceeds 8 mm, the unevenness on the rear side of the blade becomes too large and wind noise tends to increase. Because it becomes.
【発明の効果】  【The invention's effect】
【0 0 1 4】  [0 0 1 4]
本発明の風車は、抗カ利用型のものを対象として、羽根を形成する板材を薄肉のものとし、 この薄肉の板材で形成した羽根に、 風を受ける前面側に凹で、 後面側に凸の多数のェンボ スを設けたので、 前面側のエンボスの凹形状で風を受ける羽根の抗カを増大させて、 弱い 風でも効率よく回転させることができるとともに、 後面側のエンボスの ώ形状とその他の 部分との間で形成される凹凸によって、 羽根の後面側での風切り音を小さくすることがで きる。 In the wind turbine of the present invention, the plate material forming the blades is thin-walled for the anti-power utilization type, and the blades formed of this thin plate material are concave on the front side receiving the wind and convex on the rear side. Because of the increased embossed shape, the anti-embossed concave shape on the front side increases the resistance of the blades that receive the wind, allowing it to rotate efficiently even in weak winds. Unevenness formed between other parts can reduce wind noise on the rear side of the blade. wear.
【0 0 1 5】  [0 0 1 5]
前記羽根を形成する板材を金属板とし、 前記エンボスをエンボス加工で形成することによ り、 プレス等を用いて、 羽根を安価で簡単に製造することができる。 By using a metal plate as the plate material forming the blades and forming the embossing by embossing, the blades can be easily manufactured at low cost using a press or the like.
【0 0 1 6】  [0 0 1 6]
前記エンボスを球面エンボスとすることにより、 羽根の後面側での風切り抵抗を少なくし、 風切り音をより小さくすることができる。 By using the emboss as a spherical emboss, the wind resistance on the rear side of the blade can be reduced, and the wind noise can be further reduced.
【0 0 1 7】  [0 0 1 7]
前記エンボスを千鳥状の配列で設けることにより、 羽根の剛性を高めることができる。 【発明を実現するための最良の形態】 By providing the embosses in a staggered arrangement, the rigidity of the blades can be increased. BEST MODE FOR CARRYING OUT THE INVENTION
【0 0 1 8】  [0 0 1 8]
以下、 図面に基づき、 この発明の実施形態を説明する。 図 1乃至図 3は、 第 1の実施形態 を示す。 この風車は抗カ利用型のサボ二ウス型風車であり、図 1およぴ図 2に示すように、 風の向きと略直角方向に向けられる垂直軸 1に取り付けた上下の端板 2 a、 2bの間に、 風 を受ける前面側へ DA状に湾曲する半円筒状の 2枚の羽根 3を、 中心をずらして互いに向か い合わせるように取り付けたものである。 なお、 上下の端板 2 a、 2bは、 各羽根 3の両端 部に取り付けられた垂直枠 4と、 補強用の 2本の垂直棒 5で連結されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment. This windmill is an anti-cavity Savonius type windmill, as shown in Fig. 1 and Fig. 2, upper and lower end plates 2 a attached to a vertical shaft 1 that is oriented substantially perpendicular to the direction of the wind. 2b, two semi-cylindrical blades 3 curved in a DA shape toward the front side receiving the wind are attached so that the centers are shifted and face each other. The upper and lower end plates 2a and 2b are connected by vertical frames 4 attached to both ends of each blade 3 and two vertical bars 5 for reinforcement.
【0 0 1 9】  [0 0 1 9]
前記各羽根 3はアルミニウム合金製の薄板で形成され、 図 2中に矢印 Aで示す風を受ける 前面側に凹で、 後面側に凸の多数の球面エンボス 6が設けられており、 後面側はこれらの エンボス 6部分とその他の部分とによつて凹凸が形成されている。 この風車は垂直軸 1の 回りに矢印 Bの方向へ回転するが、 羽根 3の前面側で風を受けるときに、 エンボス 6の凹 形状で羽根 3の抗力が増大して弱い風でも回転するとともに、 羽根 3の後面側で風を切る ときに、 その凹凸によって風切り音を小さくすることができる。 Each blade 3 is formed of a thin plate made of an aluminum alloy, and is provided with a number of spherical embosses 6 that are concave on the front side and convex on the rear side to receive the wind indicated by arrow A in FIG. Unevenness is formed by these 6 embossed parts and other parts. This windmill rotates around the vertical axis 1 in the direction of arrow B. However, when receiving wind on the front side of the blade 3, the concave shape of the emboss 6 increases the drag of the blade 3 and rotates even in weak winds. When the wind is cut on the rear side of the blade 3, the wind noise can be reduced by the unevenness.
【0 0 2 0】  [0 0 2 0]
前記エンボス 6はプレスを用 、たエンボス加工で形成したものであり、その高さは約 5 mm とされている。 また、 図 3に示すように、 エンボス 6は千鳥状に配列されており、 薄肉で 表面積の大きい羽根 3の剛性が確保されるようになっている。 The emboss 6 is formed by embossing using a press and has a height of about 5 mm. In addition, as shown in FIG. 3, the embosses 6 are arranged in a staggered manner so that the rigidity of the blades 3 having a thin wall and a large surface area is ensured.
【0 0 2 1】  [0 0 2 1]
図 4および図 5は、第 2の実施形態を示す。 この風車は抗カ利用型のパドル型風車であり、 垂直軸 7の周りに 9 0 ° の位相で、 風を受ける前面側へ凹状に湾曲する半円筒状の 4枚の 羽根 8を支持棒 9で取り付けたものである。 各羽根 8の上下端には、 上下への風の逃げを 防止する端板 1 0が取り付けられている。 4 and 5 show a second embodiment. This windmill is a paddle type windmill that uses anti-cushion and has four semi-cylindrical blades 8 curved concavely toward the front side receiving wind at a phase of 90 ° around the vertical axis 7 and supporting rod 9 It is attached with. End blades 10 are attached to the upper and lower ends of each blade 8 to prevent the escape of wind up and down.
【0 0 2 2】  [0 0 2 2]
前記各羽根 8は、第 1の実施形態のものと同様に、アルミユウム合金製の薄板で形成され、 図 5中に矢印 Aで示す風を受ける前面側に凹で、 後面側に凸の多数の球面エンボス 1 1が 設けられており、 後面側はこれらのエンボス 1 1部分とその他の部分とによって凹 が形 成されている。 また、 このエンボス 1 1も、 エンボス加工で形成されており、 その高さは 約 5 mmとされ、 千鳥状に配列されている。 Each of the blades 8 is formed of a thin plate made of an aluminum alloy, as in the first embodiment, In Fig. 5, there are many spherical embosses 11 that are concave on the front side that receives the wind indicated by arrow A and convex on the rear side, and the rear side is concaved by these embossed 11 parts and other parts. Is formed. The embossed 11 is also formed by embossing, and its height is about 5 mm and is arranged in a staggered pattern.
【0 0 2 3】  [0 0 2 3]
この風車は垂直軸 7の回りに図 5中の矢印 Bの方向へ回転するが、 羽根 8の前面側で風を 受けるときに、 エンボス 1 1の凹形状で羽根 8の抗力が増大して弱い風でも回転するとと もに、 羽根 8の後面側で風を切るときに、 その凹凸によって風切り音を小さくすることが できる。 This windmill rotates around the vertical axis 7 in the direction of arrow B in Fig. 5, but when receiving wind on the front side of the blade 8, the concave shape of the embossed 1 1 increases the drag of the blade 8 and weakens In addition to rotating in the wind, when the wind is cut on the rear side of the blade 8, the unevenness can reduce the wind noise.
【0 0 2 4】  [0 0 2 4]
図 6および図 7は、 第 3の実施形態を示す。 この風車は抗カ利用型のプロペラ型風車であ り、 水平軸 1 2の周りに 1 2 0° の位相で、 風を傾斜面で受ける 3枚の羽根 1 3を支持棒 1 4で取り付けたものである。 この羽根 1 3も、 第 1の実施形態のものと同様に、 アルミ ニゥム合金製の薄板で形成され、 図 6およぴ図 7中に矢印 Aで示す風を受ける前面側に凹 で、 後面側に凸の多数の球面エンボス 1 5が設けられており、 後面側はこれらのエンボス 1 5部分とその他の部分とによって凹凸が形成されている。 また、 このエンボス 1 5もェ ンボス加工で成形され、 千鳥状に配列されている。 6 and 7 show a third embodiment. This windmill is an anti-propeller type windmill, with three blades 1 3 that receive the wind at an inclined surface around the horizontal axis 1 2 at a phase of 120 ° attached to the support rod 1 4 Is. As in the first embodiment, the blades 13 are also formed of a thin plate made of an aluminum alloy, and are concave on the front side that receives the wind indicated by the arrow A in FIGS. 6 and 7, and the rear surface. A large number of convex spherical embosses 15 are provided on the side, and irregularities are formed on the rear side by these embossed 15 parts and other parts. The embossed 15 is also formed by embossing and arranged in a staggered pattern.
【0 0 2 5】  [0 0 2 5]
上述した実施形態では、 各風車の羽根をアルミニウム合金製の薄板で形成し、 球面ェンポ スをェンボス加工で成形したが、 羽根は他の金属板やブラスチック板で形成してもよく、 プラスチック板で形成する場合は、 エンボスを射出成形で成形することもできる。 なお、 エンボスは球面エンボスに限定されることはなく、 任意の形状のものとすることができる。 【図面の簡単な説明】 In the above-described embodiment, the blades of each windmill are formed of a thin plate made of aluminum alloy, and the spherical emboss is formed by embossing, but the blades may be formed of other metal plates or plastic plates, plastic plates In the case of forming with, the emboss can be formed by injection molding. The embossing is not limited to the spherical embossing, but can be of any shape. [Brief description of the drawings]
【0 0 2 6】  [0 0 2 6]
【図 1 第 1の実施形態の風車を示す外観斜視図  FIG. 1 is an external perspective view showing the wind turbine according to the first embodiment.
【図 2 図 1の横断平面図  [Figure 2] Transverse plan view of Figure 1
【図 3 図 1の羽根を拡大して示す一部省略正面図  [Figure 3] Partially omitted front view showing enlarged blades of Figure 1
【図 4 第 2の実施形態の風車を示す外観斜視図  FIG. 4 is an external perspective view showing the wind turbine according to the second embodiment.
【図 5 図 4の横断平面図  [Figure 5] Cross-sectional plan view of Figure 4
【図 6 第 3の実施形態の風車を示す外観斜視図  FIG. 6 is an external perspective view showing the wind turbine according to the third embodiment.
【図 7 図 6の羽根の断面図  [Figure 7 Cross section of the blade in Figure 6]
【符号の説明】  [Explanation of symbols]
【0 0 2 7】 a、 2 b 端板 羽根 垂直枠. 垂直棒 エンボス 垂直軸 羽根 支持棒 0 端板 1 エンボス 2 水平軸 3 羽根 4 支持棒 [0 0 2 7] a, 2 b End plate Blade Vertical frame Vertical bar Emboss Vertical shaft Blade Support rod 0 End plate 1 Emboss 2 Horizontal shaft 3 Blade 4 Support rod

Claims

【請求項 1】 [Claim 1]
羽根が一定厚みの板材で形成され、 風を受けるこれらの羽根の 力をそのまま利用して 回転軸を回転させる抗カ利用型の風車において、 前記羽根を形成する板材を薄肉のものと し、 この薄肉の板材で形成した羽根に、 風を受ける前面側に凹で、 後面側に凸の多数のェ ンボスを設けたことを特徴とする風車。 In an anti-winding type windmill in which blades are formed of a plate material having a constant thickness and the rotation shaft is rotated using the force of these blades that receive wind as it is, the plate material forming the blades is made thin. A windmill characterized in that a blade made of a thin plate material is provided with a number of embossments that are concave on the front side receiving wind and convex on the rear side.
【請求項 2】  [Claim 2]
前記羽根を形成する板材を金属板とし、 前記エンボスをエンボス加工で形成した請求項 1に記載の風車。 The wind turbine according to claim 1, wherein the plate material forming the blades is a metal plate, and the emboss is formed by embossing.
【請求項 3】  [Claim 3]
前記エンボスを球面エンボスとした請求項 1または 2に記載の風車。 The windmill according to claim 1 or 2, wherein the emboss is a spherical emboss.
【請求項 4】  [Claim 4]
前記エンボスを千鳥状の配列で設けた請求項 1乃至 3のいずれ; ¾ に記載の風車。 The windmill according to any one of claims 1 to 3, wherein the embosses are provided in a staggered arrangement.
【請求項 5】  [Claim 5]
前記エンボスの高さを 3〜8 mmとした請求項 1乃至 4のいずれかに記載の風車。 The windmill according to any one of claims 1 to 4, wherein a height of the emboss is 3 to 8 mm.
PCT/JP2005/013515 2004-10-29 2005-07-08 Windmill WO2006046337A1 (en)

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JP2012530202A (en) * 2009-06-13 2012-11-29 デ ジュウ，ヨン Wind energy converter
DE102012014627A1 (en) 2012-07-17 2014-02-06 Christiane Bareiß Segovia Conical rotor for energy generation for charging batteries in transport with electric and hybrid drive, has round base plate, which has top profile with three alternate shafts and three troughs, where base plate is opened at its center
ITRM20120496A1 (en) * 2012-10-16 2014-04-17 Agenzia Naz Per Le Nuove Tecn Ologie L Ener VERTICAL AXLE GENERATOR WITH AMPLIFIED RESISTANCE.
EP2725221A1 (en) * 2012-10-25 2014-04-30 Andre Jacobs sarl Wind turbine for the production of electricity
US20150110627A1 (en) * 2013-10-17 2015-04-23 Industry-University Cooperation Foundation Sunmoon University Blade bucket structure for savonius turbine
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JP2017517671A (en) * 2014-05-06 2017-06-29 シーメンス アクチエンゲゼルシヤフトＳｉｅｍｅｎｓ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ Noise reduction means used in rotor blades of wind turbines
CN107587974A (en) * 2017-10-26 2018-01-16 中能金瀚能源技术有限公司 The anti-arch fan blade array structure of vertical axis aerogenerator and wind-driven generator
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Publication number Priority date Publication date Assignee Title
EP2128439A1 (en) 2008-05-27 2009-12-02 Syneola SA An intelligent decentralized electrical power generation system
EP2258941A1 (en) * 2009-06-05 2010-12-08 Jia-Yuan Lee Wind turbine
JP2012530202A (en) * 2009-06-13 2012-11-29 デ ジュウ，ヨン Wind energy converter
DE102012014627A1 (en) 2012-07-17 2014-02-06 Christiane Bareiß Segovia Conical rotor for energy generation for charging batteries in transport with electric and hybrid drive, has round base plate, which has top profile with three alternate shafts and three troughs, where base plate is opened at its center
ITRM20120496A1 (en) * 2012-10-16 2014-04-17 Agenzia Naz Per Le Nuove Tecn Ologie L Ener VERTICAL AXLE GENERATOR WITH AMPLIFIED RESISTANCE.
EP2725221A1 (en) * 2012-10-25 2014-04-30 Andre Jacobs sarl Wind turbine for the production of electricity
US20150110627A1 (en) * 2013-10-17 2015-04-23 Industry-University Cooperation Foundation Sunmoon University Blade bucket structure for savonius turbine
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JP2017078336A (en) * 2015-10-19 2017-04-27 真一郎 小林 Wind power generation automobile
CN107587974A (en) * 2017-10-26 2018-01-16 中能金瀚能源技术有限公司 The anti-arch fan blade array structure of vertical axis aerogenerator and wind-driven generator
WO2024003796A1 (en) * 2022-07-01 2024-01-04 Flettner Ventilator Limited Ventilation device

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