JP6594687B2 - Wind power generator - Google Patents

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JP6594687B2
JP6594687B2 JP2015141165A JP2015141165A JP6594687B2 JP 6594687 B2 JP6594687 B2 JP 6594687B2 JP 2015141165 A JP2015141165 A JP 2015141165A JP 2015141165 A JP2015141165 A JP 2015141165A JP 6594687 B2 JP6594687 B2 JP 6594687B2
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達也 伊良波
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

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Description

本発明は、風力を利用して発電する風力発電装置に関する。   The present invention relates to a wind power generator that generates power using wind power.

従来の風力発電装置は、鉛直方向に沿って設けられた回転軸と、回転軸の周方向に複数枚取り付けられた羽根とを備え、回転軸の下部には発電機の軸部が一体回転可能に連結されている（特許文献１参照）。この種の風力発電装置では、羽根が風力を受けることによって回転軸が回転し、回転軸の回転に連動して発電機の軸部が回転することによって発電している。   Conventional wind turbine generators include a rotating shaft provided along the vertical direction and a plurality of blades attached in the circumferential direction of the rotating shaft, and the shaft portion of the generator can rotate integrally with the lower portion of the rotating shaft. (See Patent Document 1). In this type of wind power generator, the rotating shaft rotates when the blades receive wind force, and power is generated by rotating the shaft portion of the generator in conjunction with the rotation of the rotating shaft.

特開２００５−２９６２号公報JP 2005-2962 A

しかしながら、前記従来の風力発電装置では、回転軸がボールベアリング等の軸受によって支持されているため、例えば、回転軸が長時間にわたって高速に回転すると、軸受の発熱や摩耗によって、軸受の回転性能が低下することがある。軸受の回転性能が低下すると、回転軸のスムーズな回転が阻害されるため、回転軸の単位時間当たりの回転数が減少し、発電効率が低下するといった問題があった。   However, in the conventional wind power generator, the rotating shaft is supported by a bearing such as a ball bearing. For example, when the rotating shaft rotates at high speed for a long time, the rotation performance of the bearing is reduced due to heat generation and wear of the bearing. May decrease. When the rotational performance of the bearing is deteriorated, smooth rotation of the rotating shaft is hindered, resulting in a problem that the number of rotations per unit time of the rotating shaft is reduced and power generation efficiency is lowered.

本発明は、上述の事情に鑑みて、発電効率の低下を可及的に抑えることができる風力発電装置を提供することを目的としている。   In view of the above-described circumstances, an object of the present invention is to provide a wind turbine generator that can suppress a decrease in power generation efficiency as much as possible.

上記目的を達成するための手段を図面の参照符号を付して示せば、請求項１の発明に係る風力発電装置１は、所定の方向に沿って延びる中心軸Ｃが軸芯となるように固定され中心軸Ｃから外周部に向けて放射状となるように巻線コイル６又は発電用磁石が配置された固定部材２と、固定部材２の周囲に中心軸Ｃが軸芯となるように回転自在に設けられ巻線コイル６又は発電用磁石に対向するように発電用磁石７又は巻線コイルが配置された回転部材３と、固定部材２の外周部及び回転部材３の内周部にそれぞれ同極となるように対向して設けられ回転部材３を固定部材２に対して磁気反発力によって浮上させる浮上用磁石４ａ〜４ｈと、回転部材３の外周部に設けられ風力を受けることによって回転部材３を固定部材２に対して周方向に回転させる羽根部材５と、を備え、
前記固定部材２は、
前記中心軸が軸芯となるように固定される軸部２ａと、
前記軸部２ａの軸方向の中央部に装着固定され前記巻線コイル又は前記発電用磁石が固定される第１固定部２ｂと、
前記軸部２ａの軸方向に沿う上端部に固定された第１円板部２ｃ１と、
前記第１円板部２ｃ１の下面側の外縁部から下方に突出する第１円筒部２ｃ２と、
前記軸部２ａの軸方向に沿う下端部に固定された第２円板部２ｄ１と、
前記第２円板部２ｄ１の上面側の外縁部から上方に突出する第２円筒部２ｄ２と、を有し、
前記回転部材３は、
前記固定部材２の周囲を取り囲むように設けられる筒状部３ａと、
前記第１円板部２ｃ１と対向配置するように、前記筒状部３ａの軸方向に沿う上端部を閉塞する第１蓋部３ｂと、
前記第２円板部２ｄ１と対向配置するように、前記筒状部３ａの軸方向に沿う下端部を閉塞する第２蓋部３ｃと、を有し、
前記浮上用磁石は、前記第１円板部２ｃ１の外周部及び前記第１蓋部３ｂの内周部にそれぞれ同極となるように対向して設けられ（４ａ，４ｅ参照）、さらに、これらの全てと別体で設けられると共に、前記第２円板部２ｄ１の外周部及び前記第２蓋部３ｃの内周部にそれぞれ同極となるように対向して設けられ（４ｃ，４ｇ参照）、さらに、これらの全てと別体で設けられると共に、前記第１円筒部２ｃ２の外周部及び前記筒状部３ａの内周部にそれぞれ同極となるように対向して設けられ（４ｂ，４ｆ参照）、そしてさらに、これらの全てと別体で設けられると共に、前記第２円筒部２ｄ２の外周部及び前記筒状部３ａの内周部にそれぞれ同極となるように対向して設けられ（４ｄ，４ｈ参照）てなることを特徴としている。 If the means for achieving the above object is shown with reference numerals in the drawings, the wind power generator 1 according to the invention of claim 1 is such that the central axis C extending along a predetermined direction becomes the axis. A fixed member 2 in which a winding coil 6 or a magnet for power generation is arranged so as to be radial from the central axis C toward the outer periphery, and rotated so that the central axis C is an axial center around the fixed member 2 The rotating member 3 provided with the power generating magnet 7 or the winding coil so as to be opposed to the winding coil 6 or the power generating magnet, and the outer peripheral portion of the fixed member 2 and the inner peripheral portion of the rotating member 3, respectively. The levitation magnets 4a to 4h which are provided to face each other so as to have the same pole and float with respect to the fixed member 2 by the magnetic repulsion force, and are rotated on the outer periphery of the rotation member 3 by receiving wind force. Rotate member 3 circumferentially relative to fixed member 2 Provided with a blade member 5, which,
The fixing member 2 is
A shaft portion 2a fixed so that the central axis serves as an axis;
A first fixing portion 2b that is mounted and fixed to the axial center portion of the shaft portion 2a and to which the winding coil or the power generation magnet is fixed;
A first disc portion 2c1 fixed to an upper end portion along the axial direction of the shaft portion 2a;
A first cylindrical portion 2c2 projecting downward from an outer edge portion on the lower surface side of the first disc portion 2c1,
A second disc portion 2d1 fixed to the lower end portion along the axial direction of the shaft portion 2a;
A second cylindrical portion 2d2 projecting upward from an outer edge portion on the upper surface side of the second disc portion 2d1,
The rotating member 3 is
A cylindrical portion 3a provided so as to surround the periphery of the fixing member 2,
A first lid portion 3b that closes an upper end portion along the axial direction of the cylindrical portion 3a so as to face the first disc portion 2c1;
A second lid portion 3c for closing the lower end portion along the axial direction of the cylindrical portion 3a so as to face the second disk portion 2d1;
The levitation magnet is provided to face the outer peripheral part of the first disc part 2c1 and the inner peripheral part of the first lid part 3b so as to have the same polarity (see 4a and 4e). Are provided separately from each other, and are provided opposite to each other so as to have the same polarity on the outer peripheral portion of the second disc portion 2d1 and the inner peripheral portion of the second lid portion 3c (see 4c and 4g). Furthermore, they are provided separately from all of them, and are provided so as to be opposed to the outer peripheral part of the first cylindrical part 2c2 and the inner peripheral part of the cylindrical part 3a so as to have the same polarity (4b, 4f). In addition, they are provided separately from all of them, and are provided so as to face the outer peripheral part of the second cylindrical part 2d2 and the inner peripheral part of the cylindrical part 3a so as to have the same polarity (see FIG. 4d, 4h) .

請求項２の発明は、上記請求項１の風力発電装置１において、浮上用磁石４ａ〜４ｈの磁力は、発電用磁石７の磁力よりも小さい。 According to a second aspect of the present invention, in the wind power generator 1 of the first aspect, the magnetic force of the levitation magnets 4 a to 4 h is smaller than the magnetic force of the power generation magnet 7.

以下に、本発明の効果について、図面の参照符号を付して説明する。まず、請求項１の発明に係る風力発電装置１では、羽根部材５が風力を受けることによって回転部材３が固定部材２に対して周方向に回転し、回転部材３に配置された発電用磁石７が固定部材２に配置された巻線コイル６に対して回転し、巻線コイル６の磁束が変動することによって巻線コイル６に誘導電流を発生させて発電することができる。さらに、請求項１の発明に係る風力発電装置１は、回転部材３を固定部材２に対して磁気反発力によって浮上させる浮上用磁石４ａ〜４ｈを有している。浮上用磁石４ａ〜４ｈは、第１円板部２ｃ１の外周部及び第１蓋部３ｂの内周部にそれぞれ同極となるように対向して設けられ（４ａ，４ｅ参照）、さらに、これらの全てと別体で設けられると共に、第２円板部２ｄ１の外周部及び第２蓋部３ｃの内周部にそれぞれ同極となるように対向して設けられ（４ｃ，４ｇ参照）、さらに、これらの全てと別体で設けられると共に、第１円筒部２ｃ２の外周部及び筒状部３ａの内周部にそれぞれ同極となるように対向して設けられ（４ｂ，４ｆ参照）、そしてさらに、これらの全てと別体で設けられると共に、第２円筒部２ｄ２の外周部及び筒状部３ａの内周部にそれぞれ同極となるように対向して設けられ（４ｄ，４ｈ参照）ている。これにより、回転部材３が固定部材２に対して確実に接触することなく回転する。したがって、回転部材３が長時間にわたって高速に回転したとしても、回転部材３の回転性能を維持できるから、発電効率の低下を可及的に抑えることができる。
さらに、請求項１の発明に係る風力発電装置１は、巻線コイル６が軸部２ａの中央部に装着固定される第１固定部２ｂに固定され、浮上用磁石４ａ〜４ｈが、軸部２ａの上端部に固定される第１円板部２ｃ１，第１円筒部２ｃ２に固定され、軸部２ａの下端部に固定される第２円板部２ｄ１，第２円筒部２ｄ２に固定されるから、浮上用磁石４ａ〜４ｈと巻線コイル６とが離間して配置される。したがって、浮上用磁石４ａ〜４ｈが巻線コイル６の磁束の変動に影響を及ぼすことがないから、発電効率の低下をさらに抑えることができる。 The effects of the present invention will be described below with reference numerals in the drawings. First, in the wind power generator 1 according to the invention of claim 1, the rotating member 3 rotates in the circumferential direction with respect to the fixed member 2 when the blade member 5 receives wind force, and the power generating magnet disposed on the rotating member 3. 7 rotates with respect to the winding coil 6 arranged on the fixed member 2, and the magnetic flux of the winding coil 6 fluctuates, so that an induction current can be generated in the winding coil 6 to generate electric power. Furthermore, the wind power generator 1 according to the invention of claim 1 includes levitation magnets 4 a to 4 h that levitate the rotating member 3 with respect to the fixed member 2 by a magnetic repulsive force . The levitation magnets 4a to 4h are provided to face each other so as to have the same polarity on the outer peripheral portion of the first disc portion 2c1 and the inner peripheral portion of the first lid portion 3b (see 4a and 4e). Are provided separately from each other, and are provided facing each other so as to have the same polarity on the outer peripheral portion of the second disc portion 2d1 and the inner peripheral portion of the second lid portion 3c (see 4c and 4g), and Are provided separately from all of them, and are provided to face the outer peripheral portion of the first cylindrical portion 2c2 and the inner peripheral portion of the cylindrical portion 3a so as to have the same polarity, respectively (see 4b and 4f), and Further, they are provided separately from all of them, and are provided to face each other so as to have the same polarity on the outer peripheral portion of the second cylindrical portion 2d2 and the inner peripheral portion of the cylindrical portion 3a (see 4d and 4h). Yes. Thereby, the rotating member 3 rotates without reliably contacting the fixed member 2. Therefore, even if the rotating member 3 rotates at a high speed for a long time, the rotational performance of the rotating member 3 can be maintained, so that a decrease in power generation efficiency can be suppressed as much as possible.
Further, in the wind turbine generator 1 according to the first aspect of the present invention, the winding coil 6 is fixed to the first fixing portion 2b attached and fixed to the central portion of the shaft portion 2a, and the levitation magnets 4a to 4h are connected to the shaft portion. first circular plate portion 2c1 which is fixed to the upper end of the 2a, is fixed to the first cylindrical portion 2c2, the second circular plate portion 2d1 which is fixed to the lower end of the shaft portion 2a, Ru is fixed to the second cylindrical portion 2d2 Therefore, the levitation magnets 4a to 4h and the winding coil 6 are spaced apart. Therefore, since the levitation magnets 4a to 4h do not affect the fluctuation of the magnetic flux of the winding coil 6, a decrease in power generation efficiency can be further suppressed.

請求項２の発明によれば、浮上用磁石４ａ〜４ｈの磁力が発電用磁石７の磁力よりも小さいから、浮上用磁石４ａ〜４ｈが発電用磁石７の磁束に影響を及ぼすことがなくなり、このため、発電効率の低下をさらに確実に抑えることができる。



According to the invention of claim 2 , since the magnetic force of the levitation magnets 4a to 4h is smaller than the magnetic force of the power generation magnet 7, the levitation magnets 4a to 4h do not affect the magnetic flux of the power generation magnet 7. For this reason, the fall of power generation efficiency can be suppressed more reliably.



本発明の実施形態に係る風力発電装置を例示する縦断側面図である。It is a vertical side view which illustrates the wind power generator concerning an embodiment of the present invention. 同風力発電装置を例示するＡ−Ａ断面図である。It is AA sectional drawing which illustrates the wind power generator. 同風力発電装置を例示するＢ−Ｂ断面図である。It is BB sectional drawing which illustrates the wind power generator.

以下に、本発明に係る風力発電装置１の実施形態について、図面を参照して具体的に説明する。   Hereinafter, an embodiment of a wind turbine generator 1 according to the present invention will be specifically described with reference to the drawings.

風力発電装置１は、図１及び図２に示すように、風力を利用して発電する風力発電装置であって、鉛直方向（図１の上下方向、図２の紙面直交方向）に沿って延びる中心軸Ｃが軸芯となるように図示しない基台に固定され中心軸Ｃから外周部に向けて水平方向（図１の左右方向、図２の面方向）に放射状となるように巻線コイル６が配置された固定部材２と、固定部材２の周囲に中心軸Ｃが軸芯となるように回転自在に設けられ巻線コイル６に対向するように発電用磁石７が配置された回転部材３と、固定部材２の外周部及び回転部材３の内周部にそれぞれ同極となるように対向して設けられ回転部材３を固定部材２に対して磁気反発力によって浮上させる浮上用磁石４ａ〜４ｈと、回転部材３の外周部に設けられ風力を受けることによって回転部材３を固定部材２に対して周方向に回転させる羽根部材５と、を備える。   As shown in FIGS. 1 and 2, the wind power generator 1 is a wind power generator that generates power using wind power, and extends along the vertical direction (the vertical direction in FIG. 1, the direction perpendicular to the plane of FIG. 2). Winding coil is fixed to a base (not shown) so that the central axis C is an axial center, and is radially radiated from the central axis C toward the outer periphery in the horizontal direction (left-right direction in FIG. 1, surface direction in FIG. 2). 6 and a rotating member in which a power generating magnet 7 is arranged so as to face the winding coil 6 so that the central axis C is rotatable around the fixing member 2. 3 and the outer peripheral part of the fixed member 2 and the inner peripheral part of the rotating member 3 are provided to face each other so as to have the same polarity, and the rotating member 3 is levitated to the fixed member 2 by a magnetic repulsive force. ~ 4h, by being provided on the outer periphery of the rotating member 3 and receiving wind force Comprises rolling the member 3 with respect to the fixed member 2 and the blade member 5 is rotated in the circumferential direction.

固定部材２は、図１に示すように、中心軸Ｃが軸芯となるように基台に固定される軸部２ａと、軸部２ａの軸方向の中央部に装着固定され巻線コイル６が固定される第１固定部２ｂと、軸部２ａの軸方向に沿う両端部にそれぞれ装着固定され浮上用磁石４ａ〜４ｄが固定される第２，第３固定部２ｃ，２ｄと、を有する。固定部材２は、金属又は合成樹脂の非磁性体からなる部材である。軸部２ａは、内部が中空となる筒状の部材であって、基台に対して垂直に立設している。   As shown in FIG. 1, the fixing member 2 is mounted and fixed to the shaft portion 2a fixed to the base so that the central axis C serves as an axial core, and the winding coil 6 is fixed to the axial center portion of the shaft portion 2a. Are fixed to both ends along the axial direction of the shaft portion 2a, and the second and third fixing portions 2c and 2d are fixed to the floating magnets 4a to 4d. . The fixing member 2 is a member made of a nonmagnetic material of metal or synthetic resin. The shaft portion 2a is a cylindrical member whose inside is hollow, and is erected vertically to the base.

第１固定部２ｂは、図１及び図２に示すように、軸部２ａと別体で設けられ、軸部２ａの軸方向の中央部に、例えば、セレーション結合等の固定手段によって相対移動不能に固定されている。第１固定部２ｂは、軸部２ａの周囲に挿通固定される貫通孔２ｂ１ａを中央部に有する円柱状の柱状部２ｂ１と、柱状部２ｂ１の外周面から外方に向けて水平方向に中心軸Ｃを基準として放射状に複数方向（図２では、８方向）に延びる棒状部２ｂ２と、棒状部２ｂ２の先端部に棒状部２ｂ２の外形よりも大きい外形を有するフランジ部２ｂ３と、を有する。柱状部２ｂは、中心軸Ｃが軸芯となるように形成され、貫通孔２ｂ１ａの内径が軸部２ａの外径と実質的に同一になるように形成された円柱状の部材である。棒状部２ｂ２は、外周部に巻線コイル６が巻回される複数（図２では、８つ）の棒状部材からなる部材であって、それぞれが柱状部２ｂ１の周方向に等配されている。フランジ部２ｂ３は、図１及び図２に示すように、発電用磁石７が対向するように配置され、棒状部２ｂ２に巻回された巻線コイル６の巻端として機能するものである。巻線コイル６は、導電性を有する金属製の線材を棒状部２ｂ２に螺旋状に巻回することにより、中心軸Ｃから外周部に向けて放射状となるように配置される。また、図示しない電流取出端子に電気的に接続される巻線コイル６の２つの端部を除いて、隣り合う棒状部２ｂ２に巻回された巻線コイル６の端部同士が電気的に接続されている。   As shown in FIGS. 1 and 2, the first fixing portion 2b is provided separately from the shaft portion 2a, and is not relatively movable by a fixing means such as serration coupling at the axial center of the shaft portion 2a. It is fixed to. The first fixing portion 2b includes a cylindrical columnar portion 2b1 having a through hole 2b1a inserted and fixed around the shaft portion 2a at the center, and a central axis in the horizontal direction from the outer peripheral surface of the columnar portion 2b1 outward. A rod-shaped portion 2b2 extending radially in a plurality of directions (eight directions in FIG. 2) with reference to C, and a flange portion 2b3 having an outer shape larger than the outer shape of the rod-shaped portion 2b2 at the tip of the rod-shaped portion 2b2. The columnar part 2b is a columnar member that is formed so that the central axis C is an axial center, and the inner diameter of the through hole 2b1a is substantially the same as the outer diameter of the shaft part 2a. The rod-like portion 2b2 is a member composed of a plurality of (eight in FIG. 2) rod-like members around which the winding coil 6 is wound around the outer peripheral portion, and each is equally distributed in the circumferential direction of the columnar portion 2b1. . As shown in FIGS. 1 and 2, the flange portion 2 b 3 is disposed so that the power generation magnet 7 is opposed to the flange portion 2 b 3, and functions as a winding end of the winding coil 6 wound around the rod-like portion 2 b 2. The winding coil 6 is arranged so as to be radial from the central axis C to the outer peripheral portion by winding a conductive metal wire rod around the rod-like portion 2b2. Moreover, the ends of the winding coil 6 wound around the adjacent rod-like portion 2b2 are electrically connected to each other except for two ends of the winding coil 6 that are electrically connected to a current extraction terminal (not shown). Has been.

第２固定部２ｃは、図１に示すように、軸部２ａと別体で設けられ、軸部２ａの上端部に、例えば、セレーション結合等の固定手段によって相対移動不能に固定されている。第２固定部２ｃは、図１に示すように、下面側の中央部が円形に凹むように形成され軸部２ａの上端部が固定される凹部２ｃ１ａを有する円板部２ｃ１（図３も参照）と、円板部２ｃ１の下面側の外縁部から下方に突出する円筒部２ｃ２（図３も参照）と、を有する。円板部２ｃ１の上面には、図１に示すように、浮上用磁石４ａを埋設固定する環状溝２ｃ３が形成され、円筒部２ｃ２の外周面には、浮上用磁石４ｂを埋設固定する環状溝２ｃ４が形成されている。   As shown in FIG. 1, the second fixing portion 2c is provided separately from the shaft portion 2a, and is fixed to the upper end portion of the shaft portion 2a so as not to be relatively movable by a fixing means such as serration coupling. As shown in FIG. 1, the second fixing portion 2c is formed so that the center portion on the lower surface side is recessed in a circular shape, and has a disc portion 2c1 having a recess 2c1a to which the upper end portion of the shaft portion 2a is fixed (see also FIG. 3). ) And a cylindrical portion 2c2 (see also FIG. 3) protruding downward from the outer edge portion on the lower surface side of the disc portion 2c1. As shown in FIG. 1, an annular groove 2c3 for embedding and fixing the levitating magnet 4a is formed on the upper surface of the disk portion 2c1, and an annular groove for embedding and fixing the levitating magnet 4b on the outer peripheral surface of the cylindrical portion 2c2. 2c4 is formed.

第３固定部２ｄは、図１に示すように、軸部２ａと別体で設けられ、軸部２ａの下端部に、例えば、セレーション結合等の固定手段によって相対移動不能に固定されている。第３固定部２ｄは、中央部が円形に貫通するように形成され軸部２ａの下端部が挿通固定される貫通孔２ｄ１ａを有する円板部２ｄ１と、円板部２ｄ１の上面側の外縁部から上方に突出する円筒部２ｄ２と、を有する。円板部２ｄ１の下面には、浮上用磁石４ｃを埋設固定する環状溝２ｄ３が形成され、円筒部２ｄ２の外周面には、浮上用磁石４ｄを埋設固定する環状溝２ｄ４が形成されている。   As shown in FIG. 1, the third fixing portion 2d is provided separately from the shaft portion 2a, and is fixed to the lower end portion of the shaft portion 2a so as not to be relatively movable by a fixing means such as serration coupling. The third fixing portion 2d includes a disc portion 2d1 having a through hole 2d1a formed so that a central portion thereof penetrates in a circular shape and a lower end portion of the shaft portion 2a is inserted and fixed, and an outer edge portion on the upper surface side of the disc portion 2d1. And a cylindrical portion 2d2 projecting upward from the head. An annular groove 2d3 for embedding and fixing the levitating magnet 4c is formed on the lower surface of the disk portion 2d1, and an annular groove 2d4 for embedding and fixing the levitating magnet 4d is formed on the outer peripheral surface of the cylindrical portion 2d2.

回転部材３は、図１に示すように、固定部材２の周囲に設けられる円筒状の筒状部３ａと、筒状部３ａの軸方向に沿う両端部をそれぞれ閉塞する円板状の第１，第２蓋部３ｂ，３ｃとを有する。回転部材３は、筒状部３ａと第１蓋部３ｂとが一体成形された有底筒状部材の下面と、第２蓋部３ｃ単体からなる円板部材の上面とが、図示しないねじ結合等の固定手段によって固定され、上面及び下面が閉塞された円筒状部材で構成される。回転部材３は、金属又は合成樹脂の非磁性体からなる部材である。回転部材３は、固定部材２の周囲に中心軸Ｃが軸芯となるように回転自在に設けられる。   As shown in FIG. 1, the rotating member 3 includes a cylindrical tubular portion 3 a provided around the fixed member 2 and a disc-shaped first member that closes both end portions along the axial direction of the tubular portion 3 a. , Second lid portions 3b and 3c. In the rotating member 3, the bottom surface of the bottomed cylindrical member in which the cylindrical portion 3a and the first lid portion 3b are integrally formed and the upper surface of the disk member made of the second lid portion 3c alone are coupled to each other by screws (not shown). It is comprised by the cylindrical member fixed by fixing means, such as, and the upper surface and the lower surface were obstruct | occluded. The rotating member 3 is a member made of a nonmagnetic material of metal or synthetic resin. The rotating member 3 is rotatably provided around the fixed member 2 so that the central axis C is an axis.

筒状部３ａは、図１及び図２に示すように、内周部の上下方向の中央部において、第１固定部２ｂの棒状部２ｂ２に巻回された巻線コイル６の巻端である第１固定部２ｂのフランジ部２ｂ３に対向するように配置され、内周部の周方向全体に等配された１２個の発電用磁石７が固定されている。発電用磁石７は、フェライト磁石、ネオジウム磁石等の板状の永久磁石であって、それぞれの磁極の向きが対向する巻線コイル６の方向に向くように配置されている。また、発電用磁石７は、図２に示すように、隣り合う発電用磁石７の磁極が異なるように配置されている。なお、本実施形態では、複数個（図２では、１２個）の発電用磁石７を設けたが、隣り合う発電用磁石７の磁極が異なるように配置すれば、発電用磁石７の数は、これに限定されるものではない。また、本実施形態では、回転部材３の筒状部３ａに発電用磁石７を設け、固定部材２の第１固定部２ｂに巻線コイル６を設けていたが、回転部材３の筒状部３ａに巻線コイルを設け、固定部材２の第１固定部２ｂに発電用磁石を設ける構成にしてもよい。この場合には、固定部材２の軸部２ａと、回転部材３の筒状部３ａとの間にスリップリングを設け、筒状部３ａに設けられた巻線コイルから電流を取り出す構成にしてもよい。   As shown in FIGS. 1 and 2, the cylindrical portion 3a is a winding end of a winding coil 6 wound around the rod-shaped portion 2b2 of the first fixed portion 2b at the center in the vertical direction of the inner peripheral portion. Twelve power generating magnets 7 are fixed so as to face the flange portion 2b3 of the first fixing portion 2b and are equally distributed over the entire circumferential direction of the inner peripheral portion. The power generation magnet 7 is a plate-like permanent magnet such as a ferrite magnet or a neodymium magnet, and is arranged so that the direction of each magnetic pole faces the direction of the winding coil 6 facing each other. Further, as shown in FIG. 2, the power generation magnets 7 are arranged so that the magnetic poles of the adjacent power generation magnets 7 are different. In the present embodiment, a plurality of (12 in FIG. 2) power generation magnets 7 are provided. However, if the adjacent power generation magnets 7 are arranged so that the magnetic poles thereof are different, the number of power generation magnets 7 is as follows. However, the present invention is not limited to this. In the present embodiment, the power generation magnet 7 is provided in the cylindrical portion 3 a of the rotating member 3, and the winding coil 6 is provided in the first fixing portion 2 b of the fixing member 2, but the cylindrical portion of the rotating member 3 is provided. A winding coil may be provided in 3a, and a power generation magnet may be provided in the first fixing portion 2b of the fixing member 2. In this case, a slip ring is provided between the shaft portion 2a of the fixed member 2 and the cylindrical portion 3a of the rotating member 3, and a current is extracted from the winding coil provided in the cylindrical portion 3a. Good.

筒状部３ａは、図１に示すように、内周部の上部において、第２固定部２ｃの円筒部２ｃ２の外周面の環状溝２ｃ４に埋設固定された浮上用磁石４ｂに対向する位置に、磁極が浮上用磁石４ｂの磁極と同一になる浮上用磁石４ｆを埋設固定するための環状溝３ａ１が形成されている。筒状部３ａは、内周部の下部において、第３固定部２ｄの円筒部２ｄ２の外周面の環状溝２ｄ４に埋設固定された浮上用磁石４ｄに対向する位置に、磁極が浮上用磁石４ｄの磁極と同一になる浮上用磁石４ｈを埋設固定するための環状溝３ａ２が形成されている。   As shown in FIG. 1, the cylindrical portion 3a is located at a position facing the levitation magnet 4b embedded and fixed in the annular groove 2c4 on the outer peripheral surface of the cylindrical portion 2c2 of the second fixing portion 2c, at the upper portion of the inner peripheral portion. An annular groove 3a1 for embedding and fixing the levitation magnet 4f having the same magnetic pole as that of the levitation magnet 4b is formed. The cylindrical portion 3a has a magnetic pole at the position facing the levitation magnet 4d embedded and fixed in the annular groove 2d4 on the outer peripheral surface of the cylindrical portion 2d2 of the third fixing portion 2d at the lower portion of the inner peripheral portion. An annular groove 3a2 is formed for embedding and fixing the levitating magnet 4h which is the same as the magnetic pole.

第１蓋部３ｂは、図１に示すように、下端部が筒状部３ａの上端部と一体成形され、第１蓋部３ｂの下面において、円板部２ｃ１の上面に形成された環状溝２ｃ３に埋設固定された浮上用磁石４ａに対向する位置に、磁極が浮上用磁石４ａの磁極と同一になる浮上用磁石４ｅを埋設固定するための環状溝３ｂ１が形成されている。第２蓋部３ｃは、図１に示すように、筒状部３ａ及び第１蓋部３ｂと別体で形成され、中央部に形成された貫通孔３ｃ２が軸部２ａに挿通された状態で上端部が筒状部３ａの下端部が固定され、第２蓋部３ｃの上面において、円板部２ｄ１の下面に形成された環状溝２ｄ３に埋設固定された浮上用磁石４ｃに対向する位置に、磁極が浮上用磁石４ｃの磁極と同一になる浮上用磁石４ｇを埋設固定するための環状溝３ｃ１が形成されている。   As shown in FIG. 1, the first lid portion 3b is formed integrally with the upper end portion of the cylindrical portion 3a, and an annular groove formed on the upper surface of the disc portion 2c1 on the lower surface of the first lid portion 3b. An annular groove 3b1 for embedding and fixing the levitation magnet 4e having the same magnetic pole as that of the levitation magnet 4a is formed at a position facing the levitation magnet 4a embedded and fixed in 2c3. As shown in FIG. 1, the second lid portion 3c is formed separately from the cylindrical portion 3a and the first lid portion 3b, and the through hole 3c2 formed in the central portion is inserted through the shaft portion 2a. The upper end is fixed to the lower end of the cylindrical portion 3a, and on the upper surface of the second lid portion 3c, it faces the levitation magnet 4c embedded and fixed in the annular groove 2d3 formed on the lower surface of the disc portion 2d1. An annular groove 3c1 for embedding and fixing the levitation magnet 4g having the same magnetic pole as that of the levitation magnet 4c is formed.

浮上用磁石４ａ〜４ｈは、図１に示すように、フェライト磁石、ネオジウム磁石等の環状の永久磁石であって、具体的には、浮上用磁石４ａ（図３参照），４ｃ，４ｅ，４ｇは、板状の永久磁石であり、浮上用磁石４ｂ（図３参照），４ｄ，４ｆ（図３参照），４ｈは、円筒状の永久磁石である。また、浮上用磁石４ａ〜４ｈの磁力は、発電用磁石７の磁力よりも小さくなっている。具体的には、浮上用磁石４ａ〜４ｈの磁束密度が、発電用磁石７の磁束密度よりも小さくなっている。これらの磁束密度は、例えば、テスラメータにより測定できる。本実施形態では、浮上用磁石４ａ〜４ｈの磁力が発電用磁石７の磁力よりも小さいから、浮上用磁石４ａ〜４ｈが発電用磁石７の磁束に影響を及ぼすことがなくなり、このため、発電効率の低下をさらに確実に抑えることができる。なお、浮上用磁石４ａ〜４ｈは、永久磁石に限定されるものではなく、励磁コイルに電流を流すことによって磁力が発生する電磁石であってもよい。   As shown in FIG. 1, the levitation magnets 4a to 4h are annular permanent magnets such as ferrite magnets and neodymium magnets. Specifically, the levitation magnets 4a (see FIG. 3), 4c, 4e, and 4g are used. Is a plate-like permanent magnet, and the levitation magnets 4b (see FIG. 3), 4d, 4f (see FIG. 3), and 4h are cylindrical permanent magnets. Further, the magnetic force of the levitation magnets 4 a to 4 h is smaller than the magnetic force of the power generation magnet 7. Specifically, the magnetic flux density of the levitation magnets 4 a to 4 h is smaller than the magnetic flux density of the power generation magnet 7. These magnetic flux densities can be measured by, for example, a teslameter. In this embodiment, since the magnetic force of the levitation magnets 4a to 4h is smaller than the magnetic force of the power generation magnet 7, the levitation magnets 4a to 4h do not affect the magnetic flux of the power generation magnet 7. The reduction in efficiency can be further reliably suppressed. The levitation magnets 4a to 4h are not limited to permanent magnets, and may be electromagnets that generate a magnetic force by passing a current through an exciting coil.

浮上用磁石４ａ〜４ｈは、固定部材２の外周部及び筒状部３ａの内周部にそれぞれ同極となるように対向して設けられるとともに、固定部材２の軸方向に沿う外側面及び第１，第２蓋部３ｂ，３ｃの軸方向に沿う内側面にそれぞれ同極となるように対向して設けられる。浮上用磁石４ａは、例えば、磁極が上側に向かってＮ極であり、浮上用磁石４ｅは、磁極が下側に向かってＮ極であって、このため、浮上用磁石４ａと浮上用磁石４ｅとは同極であるから、磁気反発力によって、第１蓋部３ｂが第２固定部２ｃに対して上方に浮上する。浮上用磁石４ｂは、磁極が外周側に向かってＮ極であり、浮上用磁石４ｆは、磁極が内周側に向かってＮ極であって、このため、浮上用磁石４ｂと浮上用磁石４ｆとは同極であるから、磁気反発力によって、筒状部３ａが第１固定部２ｂに対して外方に浮上する。浮上用磁石４ｃは、磁極が下側に向かってＮ極であり、浮上用磁石４ｇは、磁極が上側に向かってＮ極であって、このため、浮上用磁石４ｃと浮上用磁石４ｇとは同極であるから、磁気反発力によって、第２蓋部３ｃが第３固定部２ｄに対して下方に浮上する。浮上用磁石４ｄは、磁極が外周側に向かってＮ極であり、浮上用磁石４ｈは、磁極が内周側に向かってＮ極であって、このため、浮上用磁石４ｄと浮上用磁石４ｈとは同極であるから、磁気反発力によって、筒状部３ａが第３固定部２ｄに対して外方に浮上する。したがって、浮上用磁石４ａ〜４ｈによって、回転部材３が固定部材２に対して浮上する。   The levitation magnets 4a to 4h are provided opposite to the outer peripheral portion of the fixing member 2 and the inner peripheral portion of the cylindrical portion 3a so as to have the same polarity, and the outer surface and the first surface along the axial direction of the fixing member 2 are provided. The first and second lid portions 3b and 3c are provided so as to face each other so as to have the same polarity on the inner side surfaces along the axial direction. The levitation magnet 4a has, for example, a magnetic pole having an N pole toward the upper side, and the levitation magnet 4e has an N pole toward the lower side, and therefore, the levitation magnet 4a and the levitation magnet 4e. Is the same polarity as that, the first lid portion 3b floats upward with respect to the second fixed portion 2c by the magnetic repulsive force. The levitation magnet 4b has N poles with the magnetic poles toward the outer peripheral side, and the levitation magnet 4f has N poles with the magnetic poles toward the inner peripheral side. Therefore, the levitation magnet 4b and the levitation magnet 4f Is the same polarity as that, the cylindrical portion 3a floats outward with respect to the first fixed portion 2b by the magnetic repulsive force. The levitation magnet 4c has N poles with the magnetic poles downward, and the levitation magnet 4g has N poles with the magnetic poles upward. Therefore, the levitation magnet 4c and the levitation magnet 4g are different from each other. Because of the same polarity, the second lid portion 3c floats downward with respect to the third fixed portion 2d by the magnetic repulsive force. The levitation magnet 4d has N poles with the magnetic poles toward the outer peripheral side, and the levitation magnet 4h has N poles with the magnetic poles toward the inner peripheral side. Therefore, the levitation magnet 4d and the levitation magnet 4h Is the same polarity as that, the cylindrical portion 3a floats outward from the third fixed portion 2d by the magnetic repulsive force. Therefore, the rotating member 3 is levitated with respect to the fixed member 2 by the levitating magnets 4a to 4h.

羽根部材５は、回転部材３の筒状部３ａの外周部に筒状部３ａと一体成形され、風力を受けることによって回転部材３を固定部材２に対して周方向に回転させる部材である。羽根部材５は、図２及び図３に示すように、水平方向の断面が円弧状となる板状部材であって、複数個（図２では、８個）の板状部材が風力を受ける円弧の向きが同一方向（例えば、平面視で反時計まわりの方向）に向くように周方向に等配される。   The blade member 5 is a member that is integrally formed with the cylindrical portion 3a on the outer peripheral portion of the cylindrical portion 3a of the rotating member 3, and rotates the rotating member 3 in the circumferential direction with respect to the fixed member 2 by receiving wind power. As shown in FIGS. 2 and 3, the blade member 5 is a plate-like member having a circular cross section in the horizontal direction, and a plurality (eight in FIG. 2) of the plate-like members receive the wind force. Are equally arranged in the circumferential direction so that the directions thereof are in the same direction (for example, counterclockwise in plan view).

本発明の風力発電装置１では、羽根部材５が風力を受けることによって回転部材３が固定部材２に対して周方向に平面視で反時計まわりの方向に回転し、回転部材３に配置された発電用磁石７が固定部材２に配置された巻線コイル６に対して回転し、巻線コイル６の磁束が変動することによって巻線コイル６に誘導電流を発生させて発電する。   In the wind power generator 1 of the present invention, the rotating member 3 rotates counterclockwise in a plan view in the circumferential direction with respect to the fixed member 2 when the blade member 5 receives wind force, and is disposed on the rotating member 3. The power generation magnet 7 rotates with respect to the winding coil 6 disposed on the fixed member 2, and when the magnetic flux of the winding coil 6 fluctuates, an induction current is generated in the winding coil 6 to generate power.

しかして、本発明によれば、上述した実施形態に記載されるように、風力発電装置１は、回転部材３を固定部材２に対して磁気反発力によって浮上させる浮上用磁石４ａ〜４ｈを有しているから、回転部材３が固定部材２に対して接触することなく回転する。したがって、回転部材３が長時間にわたって高速に回転したとしても、回転部材３の回転性能を維持できるから、発電効率の低下を可及的に抑えることができる。   Thus, according to the present invention, as described in the above-described embodiment, the wind turbine generator 1 has the levitation magnets 4a to 4h that levitate the rotating member 3 with respect to the fixed member 2 by the magnetic repulsive force. Therefore, the rotating member 3 rotates without contacting the fixed member 2. Therefore, even if the rotating member 3 rotates at a high speed for a long time, the rotational performance of the rotating member 3 can be maintained, so that a decrease in power generation efficiency can be minimized.

なお、本発明の風力発電装置１は、風力を受けることが可能な屋内又は屋外に設置され、例えば、家屋、ビル等の屋上に設置されることが好ましい。また、本発明の風力発電装置１は、自動車、二輪車、列車、航空機、船舶等の移動体に設置してもよく、移動体の移動によって発生する風力を受ける構成にしてもよい。さらに、本発明の風力発電装置１により発電した電力は、各種の電気製品を駆動する主電力又は補助電力として使用できる。   In addition, it is preferable that the wind power generator 1 of this invention is installed indoors or outdoors which can receive a wind force, for example, is installed in the roofs, such as a house and a building. Moreover, the wind power generator 1 of this invention may be installed in mobile bodies, such as a motor vehicle, a two-wheeled vehicle, a train, an aircraft, a ship, and you may make it the structure which receives the wind force generated by a movement of a mobile body. Furthermore, the power generated by the wind power generator 1 of the present invention can be used as main power or auxiliary power for driving various electric products.

１ 風力発電装置
２ 固定部材
２ａ 軸部
２ｂ 第１固定部
２ｂ１ 柱状部
２ｂ１ａ 貫通孔
２ｂ２ 棒状部
２ｂ３ フランジ部
２ｃ 第２固定部
２ｃ１ 円板部
２ｃ１ａ 凹部
２ｃ２ 円筒部
２ｃ３，２ｃ４ 環状溝
２ｄ 第３固定部
２ｄ１ 円板部
２ｄ１ａ 貫通孔
２ｄ２ 円筒部
２ｄ３，２ｄ４ 環状溝
３ 回転部材
３ａ 筒状部
３ａ１，３ａ２ 環状溝
３ｂ 第１蓋部
３ｂ１ 環状溝
３ｃ 第２蓋部
３ｃ１ 環状溝
３ｃ２ 貫通孔
４ａ〜４ｈ 浮上用磁石
５ 羽根部材
６ 巻線コイル
７ 発電用磁石
Ｃ 中心軸 DESCRIPTION OF SYMBOLS 1 Wind power generator 2 Fixing member 2a Shaft part 2b 1st fixing part 2b1 Columnar part 2b1a Through-hole 2b2 Rod-like part 2b3 Flange part 2c 2nd fixing part 2c1 Disc part 2c1a Recessed part 2c2 Cylindrical part 2c3, 2c4 Annular groove 2d 3rd fixing Part 2d1 disk part 2d1a through hole 2d2 cylindrical part 2d3, 2d4 annular groove 3 rotating member 3a cylindrical part 3a1, 3a2 annular groove 3b first lid part 3b1 annular groove 3c second lid part 3c1 annular groove 3c2 through hole 4a-4h Magnet for levitation 5 Blade member 6 Winding coil 7 Magnet for power generation C Center shaft

Claims (2)

所定の方向に沿って延びる中心軸が軸芯となるように固定され、前記中心軸から外周部に向けて放射状となるように巻線コイル又は発電用磁石が配置された固定部材と、
前記固定部材の周囲に前記中心軸が軸芯となるように回転自在に設けられ、前記巻線コイル又は前記発電用磁石に対向するように発電用磁石又は巻線コイルが配置された回転部材と、
前記固定部材の外周部及び前記回転部材の内周部にそれぞれ同極となるように対向して設けられ、前記回転部材を前記固定部材に対して磁気反発力によって浮上させる浮上用磁石と、
前記回転部材の外周部に設けられ、風力を受けることによって前記回転部材を前記固定部材に対して周方向に回転させる羽根部材と、を備え、
前記固定部材は、
前記中心軸が軸芯となるように固定される軸部と、
前記軸部の軸方向の中央部に装着固定され前記巻線コイル又は前記発電用磁石が固定される第１固定部と、
前記軸部の軸方向に沿う上端部に固定された第１円板部と、
前記第１円板部の下面側の外縁部から下方に突出する第１円筒部と、
前記軸部の軸方向に沿う下端部に固定された第２円板部と、
前記第２円板部の上面側の外縁部から上方に突出する第２円筒部と、を有し、
前記回転部材は、
前記固定部材の周囲を取り囲むように設けられる筒状部と、
前記第１円板部と対向配置するように、前記筒状部の軸方向に沿う上端部を閉塞する第１蓋部と、
前記第２円板部と対向配置するように、前記筒状部の軸方向に沿う下端部を閉塞する第２蓋部と、を有し、
前記浮上用磁石は、前記第１円板部の外周部及び前記第１蓋部の内周部にそれぞれ同極となるように対向して設けられ、さらに、これらの全てと別体で設けられると共に、前記第２円板部の外周部及び前記第２蓋部の内周部にそれぞれ同極となるように対向して設けられ、さらに、これらの全てと別体で設けられると共に、前記第１円筒部の外周部及び前記筒状部の内周部にそれぞれ同極となるように対向して設けられ、そしてさらに、これらの全てと別体で設けられると共に、前記第２円筒部の外周部及び前記筒状部の内周部にそれぞれ同極となるように対向して設けられてなる風力発電装置。 A fixed member in which a central axis extending along a predetermined direction is fixed to be an axial center, and a winding coil or a power generation magnet is arranged so as to be radial from the central axis toward the outer periphery;
A rotating member provided around the fixing member so as to be rotatable so that the central axis serves as an axial center, and a power generating magnet or a winding coil disposed so as to face the winding coil or the power generating magnet; ,
A levitation magnet provided to be opposed to the outer peripheral portion of the fixed member and the inner peripheral portion of the rotating member so as to have the same polarity, and to float the rotating member with respect to the fixed member by a magnetic repulsive force;
A blade member provided on an outer peripheral portion of the rotating member and rotating the rotating member in a circumferential direction with respect to the fixed member by receiving wind force ;
The fixing member is
A shaft portion fixed so that the central axis serves as an axis;
A first fixing portion that is mounted and fixed to an axial center portion of the shaft portion and to which the winding coil or the power generation magnet is fixed;
A first disc portion fixed to an upper end portion along the axial direction of the shaft portion;
A first cylindrical portion protruding downward from an outer edge portion on the lower surface side of the first disc portion;
A second disc portion fixed to a lower end portion along the axial direction of the shaft portion;
A second cylindrical portion protruding upward from an outer edge portion on the upper surface side of the second disc portion,
The rotating member is
A cylindrical portion provided so as to surround the periphery of the fixing member;
A first lid portion that closes an upper end portion along the axial direction of the tubular portion so as to be opposed to the first disc portion;
A second lid portion that closes a lower end portion along the axial direction of the cylindrical portion so as to face the second disc portion;
The levitation magnet is provided to face the outer peripheral portion of the first disc portion and the inner peripheral portion of the first lid portion so as to have the same polarity, and is provided separately from all of them. In addition, the outer peripheral portion of the second disk portion and the inner peripheral portion of the second lid portion are provided to face each other so as to have the same polarity, and are provided separately from all of them, and the first The outer peripheral portion of the first cylindrical portion and the inner peripheral portion of the cylindrical portion are provided to face each other so as to have the same polarity, and further provided separately from all of them, and the outer periphery of the second cylindrical portion And a wind power generator provided so as to face each other so as to have the same polarity . 前記浮上用磁石の磁力は、前記発電用磁石の磁力よりも小さい請求項１に記載の風力発電装置。 The magnetic force of the magnet is wind power generator according to a small claim 1 than the magnetic force of the generator magnet.
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