JP2007016756A - Wind power generation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wind power generation device capable of highly efficiently generating electric power with a simple structure, capable of narrowing the installation area, reducing restriction of an installation place, and capable of coping with a breeze. <P>SOLUTION: This wind power generation device 1 has a wind receiving blade 10 having a structure of doubly folding a substantially trapezoidal plate member mutually different in the length of the opposed short sides and having its length extremely longer than the length of the short sides in its width direction at a predetermined angle θ, and a power generation part generating electric power by vibration of the wind receiving blade 10. The wind receiving blade 10 torsionally vibrates by receiving wind power, and a piezoelectric plate generates electric power by deflecting. A plane including a plate of the power generation part and the wind direction are parallel, and since this device is arranged so that its vibration direction becomes a substantially right angle to the wind direction, electric power can be further efficiently generated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wind power generation apparatus that extracts electric energy using wind power and a wind power generation system using the wind power generation apparatus.

  In recent years, wind power generation has attracted attention as a power generation method using clean energy. As a general wind power generation device, a propeller is rotated by wind power and a motor is rotated to generate electric power by electromagnetic induction. However, these devices are large in size and high in cost. However, there is a problem that power generation efficiency is lowered unless a predetermined installation interval is taken.

  In order to solve such a problem, a power generation device using a piezoelectric element has been proposed. For example, Patent Document 1 includes a frame-shaped frame member, a diaphragm that covers the upper opening surface of the frame member, and a wind receiving blade that is attached to the surface of the diaphragm, and causes bending displacement in the diaphragm. A wind power generator having a structure to which a piezoelectric element of a bimorph type or the like that generates electricity is attached is disclosed. In this wind power generator, the wind receiving blades vibrate when receiving wind force, and the vibration is transmitted to the diaphragm to bend the piezoelectric element, thereby obtaining electric energy.

However, in such a wind power generator, there is a problem in that the power generation efficiency decreases due to the vibration of the diaphragm being suppressed by the frame. On the other hand, in order to reduce such vibration suppression by the frame of the diaphragm, the frame must be enlarged, and the installation area is increased. In addition, since the size of the bent piezoelectric element is limited in terms of manufacturing technology, it may not always be appropriate to use a piezoelectric element for the purpose of generating large power.
JP 2001-231273 A

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a wind power generator that has a simple structure, can generate power even with a small wind speed, and can generate power with high efficiency. It is another object of the present invention to provide a wind turbine generator that can reduce the installation area and has few restrictions on the installation location. Furthermore, an object of this invention is to provide the wind power generation system using such a wind power generator.

As a first invention, the present invention has a long shape and is folded in half at a predetermined angle in the width direction, and a predetermined torsional vibration is generated when wind force is received with one end in the longitudinal direction fixed. A wind-receiving wing whose width varies in the longitudinal direction so as to occur;
A plate-shaped power generation unit that generates power by vibration of the wind-receiving blade;
An electric circuit for extracting electricity from the power generation unit;
A plane including the plate of the plate-shaped power generation unit and the wind direction are parallel to each other and installed such that the vibration direction is substantially perpendicular to the wind direction. A wind power generator (Claim 1) is provided.

  In this wind turbine generator, as a wind receiving blade, two substantially strip-shaped plate members having opposite short sides that are different from each other form a predetermined angle, and one end in the longitudinal direction is more than the other end. What has the structure joined by the long side so that it may become wide is used suitably. In this case, it is desirable to have a linear reinforcing member such as a piano wire in the folded portion corresponding to the folded line portion or the joint corresponding portion of the wind receiving blade. The reinforcing portion can be attached to the entire length of the wind receiving blade, but can be stopped midway from the fixing portion with the power generation portion. At this time, it is possible to reinforce the wind receiving blade while reducing the braking of the movement of the wind receiving blade, and to steadily transmit vibration energy to the power generation portion. (Claims 2 to 3)

  Further, as a second invention, the present invention has a long shape and a cross-sectional shape perpendicular to the longitudinal direction thereof is substantially arc-shaped, and a predetermined twist when receiving wind force with one end in the longitudinal direction fixed. A wind receiving blade whose width changes in the longitudinal direction so as to generate vibration, a power generation unit that generates electric power by vibration of the wind receiving blade, and an electric circuit that extracts this energy are provided. A wind power generator, wherein the plane including the plate of the plate-shaped power generation unit and the wind direction are parallel to each other, and the vibration direction is set to be substantially perpendicular to the wind direction. Device. (Claim 4)

  In the wind power generator according to the present invention, a wind power generator having a piezoelectric element that generates power by bending is preferably used. In this case, the piezoelectric element may be attached to the wind receiving blade. Further, a connecting member for connecting the wind receiving blade and the piezoelectric element is further provided, and the piezoelectric element is bent or bent so that the torsional vibration of the wind receiving blade is transmitted to the piezoelectric element through the connecting member. You may generate electricity. In the present invention, a metal material or a resin material having a spring property is preferably used for the wind receiving blade. (Claim 5)

  On the other hand, a power generation coil that generates power by electromagnetic induction may be used as the power generation unit. In this case, a connecting member for connecting the wind receiving blade and the power generation coil can be further provided, and the torsional vibration of the wind receiving blade can be transmitted to the power generating coil via the connecting member to operate the power generating coil. (Claim 6) Further, instead of the power generation coil, power may be generated using a hydraulic pump and a hydraulic power generator. Further, the present system for generating power with a power generation coil and a magnet and the system according to claims 1 to 5 may be used in combination. For example, this is a case where the plate-shaped power generation unit includes both a piezoelectric plate and a power generation coil. In the present invention, a metal material or resin material having a spring property is preferably used for the wind receiving blade.

As a third invention, the present invention is a wind power generation system configured by using a plurality of wind power generators according to any one of claims 1 to 6, wherein a plurality of the wind receiving blades are arranged at predetermined intervals, There is provided a wind power generation system comprising a current collector that collects electric energy generated in a plurality of the power generation units in series and / or in parallel. (Claim 7)

Further, the wind receiving unit having a configuration in which a predetermined number of the wind receiving blades are arranged in tandem, parallel, longitudinal parallel, or radially so that the wind receiving surfaces face the same direction, the tail blade, and the wind receiving unit And a support mechanism that rotatably supports the connection member, and includes a plate of the plate-like power generation unit of the wind receiving unit when the tail receives wind force. 8. The wind power generation system according to claim 7, wherein the plane is substantially parallel to the wind direction and the vibration thereof is substantially perpendicular to the wind direction. (Claim 8)

  The wind power generator of the present invention has a simple structure and a small installation area per unit. In addition, when a piezoelectric element is used for the power generation unit, the vibration of the wind receiving blade is directly transmitted, and the plane including the plate of the plate-shaped power generation unit is substantially parallel to the wind direction, and the vibration direction is relative to the wind direction. By reducing the obstruction of the vibrational motion of the plate-like power generation unit by the wind that blows continuously by making it substantially vertical, it is possible to generate power even with a fine wind with a lower wind speed, and high power generation efficiency can be realized. In addition, it is possible to realize a structure that does not substantially differ between the case where a piezoelectric element is used as the power generation unit and the case where a power generation coil using electromagnetic induction is used. An appropriate power generation unit can be selected according to the above. By using a plurality of such wind power generation units, it is possible to easily construct a wind power generation system that can perform efficient power generation from low output to large output according to the purpose of use of electric energy.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a schematic structure of the wind power generator 1, which is shown in comparison with a reference example. FIG. 2 is a schematic plan view showing the positional relationship between the wind receiving blades 10 and the plate-like power generation unit 11 constituting the wind power generator 1, and is shown together with a plan view of a reference example. The wind power generator 1 includes a wind receiving blade 10 that generates predetermined vibration by receiving wind force, a connecting member 12 that is attached to the wind receiving blade 10 and transmits the vibration of the wind receiving blade 10 to the plate power generation unit 11, and power generation. And a holding member 40 that holds the portion 11.

  In FIG. 1, each of the piezoelectric plates 11 serving as power generation units has an electrode film (not shown) on the main surface and is polarized in the thickness direction.

  The connecting member 12 only needs to have a predetermined hardness capable of connecting the wind receiving blades 10 and transmitting the vibration to the power generation unit, and the shape thereof may be arbitrary. For the wind receiving blade and the piezoelectric portion, for example, a metal material, a resin material, a ceramic material, a composite material made of these materials, or the like can be used.

  As shown in FIG. 3, the width of the wind receiving blade 10 varies in the longitudinal direction. That is, the length of the short side facing the wind-receiving blade 10 is 2L1 and 2L2 which are different from each other (L1> L2), and the length L3 of the wind-receiving blade 10 is extremely longer than the length of the short side ( L3 >> L1) A substantially trapezoidal plate member has a structure that is folded in half in the width direction at a predetermined angle θ (hereinafter referred to as “inner angle θ”). Although not shown, the connecting member 12 is connected to the shorter end of the short sides of the wind receiving blade 10.

  As the wind receiving blade 10, a metal material or resin material having a spring property (including a rigid nonwoven fabric) and paper (including a rigid material having a water repellent effect) are preferably used. Here, it is assumed that the wind receiving blade 10 is made of a metal material. There is no restriction | limiting in the length L3 of the wind-receiving blade 10, For example, several centimeters, several tens of centimeters, several meters, several tens of meters can be arbitrarily set by the installation place and the installation purpose. The shape of the receiving blade 10 (that is, the lengths L1, L2, and L3 of each side), the thickness, and the interior angle θ efficiently generate vibrations of the receiving blade 10 that will be described later in consideration of the characteristics of the material used. It is set as appropriate.

  FIG. 3 shows a configuration in which one plate member is folded in half as the wind vane 10, but for example, two plate members having short sides of L1 and L2 and a length of L3 The wind-receiving blade 10 may be formed by joining the long edges of the two. When the thickness of the wind receiving blade 10 is small, it can be folded in half by bending sheet metal processing, but when the thickness is large, it can be manufactured by casting or the like. Also, when using a resin blade as the wind receiving blade, if the thickness is thin, by bending the elastic film, on the other hand, if the thickness is thick, by injection molding or extrusion molding, A desired wind receiving blade can be manufactured.

  FIG. 4 is an explanatory diagram schematically showing the vibration form of the wind receiving blade 10. Here, the longitudinal direction of the wind receiving blade 10 when the wind receiving blade 10 is stationary, that is, the longitudinal axis of the bent portion of the wind receiving blade 10 is the Z axis, and the internal angle θ of the wind receiving blade 10 is 2 etc. The direction axis to be divided is defined as the X axis, and the direction axis perpendicular to the X axis and the Z axis is defined as the Y axis. Further, a bent portion of the wind receiving blade 10 on the open end side of the wind receiving blade 10 is set as a point P.

  The wind receiving blade 10 can receive wind energy most efficiently when the wind hits the surface on the inner angle θ side of the wind receiving blade 10 from the X direction. That is, when the wind receiving blade 10 is stationary, the point P is located at the intersection of the X axis and the Y axis (on the Z axis). When the wind receiving blade 10 receives wind force from the X direction, the wind receiving blade 10 tries to release the received wind, so the fixed end side of the wind receiving blade 10 functions as a spring. As a result, “torsional vibration” is generated in which the point P on the open end side of the wind receiving blade 10 rotates around the Z axis while reciprocating between the points P1 and P2 on the XY plane. At this time, the vibration energy deflects the diaphragm 11 through the connecting member 13 and generates electricity by the piezoelectric effect. The Y-axis component of this deflection can be extracted as a vibration component in the Y-axis direction of the power generation unit. Since the plane including the plate of the plate-shaped power generation unit and the wind direction are parallel and the vibration direction is set to be substantially perpendicular to the wind direction, P1 point, P2 point by "torsional vibration" Will slightly deviate from the Y axis, but the deviation from the Y axis is small compared to the case shown in the reference example of FIG. Therefore, the Y-axis direction becomes the main vibration direction of the piezoelectric portion, and power generation by the piezoelectric plate using this vibration component can be used.

  In order to efficiently generate such torsional vibrations in the wind receiving blade 10, the wind receiving blade 10 preferably has a symmetric structure with respect to the X axis, and the internal angle θ of the wind receiving blade 10 is It is preferable to set the question between 45 degrees and 135 degrees, more preferably around 90 degrees.

In FIG. 1, a diaphragm is installed substantially parallel to the X-axis direction with respect to the wind-receiving blade whose inner angle θ side is the wind direction (X-axis), and the vibration direction of the plate-shaped power generation unit is relative to the wind direction. The embodiment (b) of the present invention installed so as to be substantially perpendicular (Y-axis direction) and the diaphragm are installed in parallel to the Y-axis direction, and the vibration direction of the plate-shaped power generation section is substantially the wind direction. The reference example (a) installed so as to be parallel is shown in comparison. In FIG. 2, the positional relationship between the wind-receiving blade and the plate-like piezoelectric portion is compared. In the embodiment of the wind receiving blade having an internal angle θ of 90 degrees, about 2.5 times as much vibration energy could be taken out in the steady wind where the wind speed did not change compared to the reference example of the similar wind receiving blade. In the embodiment (b), when the energy of the wind from the wind receiving blade is converted into the vibration energy of the plate-like power generation unit, the fixed end side of the wind receiving blade 10 functions as a spring, and the open end of the wind receiving blade 10 The Y-axis component of “torsional vibration” in which the P point on the side reciprocates between points P1 and P2 on the XY plane can be extracted as a vibration component in the Y-axis direction of the plate-like power generation unit. On the other hand, in the reference example (a), the wind in the X-axis direction and the vibration direction of the plate-like power generation unit are substantially parallel, and the vibration motion in the X-axis direction works in the direction in which the energy of the wind itself cancels out. This canceling effect is significant when wind energy having a substantially constant speed is converted into electric power.

  FIG. 5 is an explanatory diagram showing an example of a current collecting circuit 90 that collects current from the piezoelectric plates 11a and 11b installed on both sides of the diaphragm 11. As shown in FIG. The current collecting circuit 90 rectifies the electricity (alternating current) generated by 11a and 11b installed on both sides of the piezoelectric plate 11, and stores a part of the power rectified by the rectifying circuit 91. And a charge / discharge circuit 93 for supplying electric power to a load 92. The rectifier circuit 91 has a configuration in which a diode 94 is connected in a Wheatstone bridge type. The charge / discharge circuit 93 includes a power storage body 95 such as a capacitor or a secondary battery for storing / releasing power.

  According to such a current collecting circuit 90, it is possible to send necessary power to the load 92 in real time among the power rectified by the rectifying circuit 91. On the other hand, surplus power that is not required by the load 92 can be stored in the power storage body 95. For example, when the wind receiving blade 10 does not operate, the power stored in the power storage body 95 is It is possible to operate a load 92 including a light emitting diode. In addition, when generated electric power is large, it can supply electric power to an electric power company, for example.

  The configuration of the wind turbine generator 1 can be variously modified. Although the single-plate piezoelectric plates 11a and 11b are shown as the piezoelectric elements, a bimorph element 21, a known unimorph element, or a stacked bimorph element (multimorph element) may be used.

  Explaining the displacement based on the no-vibration caused by the force applied to the piezoelectric element and the change in electromotive force of the piezoelectric element due to the vibration movement. The vibrator starts to shake due to the external force of wind force and starts the moment when the displacement speed is maximum. However, when oscillating by wind, the displacement becomes maximum displacement speed when receiving strong wind, and it is intermittent or continuous at irregular intervals, but it is a sine curve that repeats attenuation while receiving strong and weak external force. It changes by drawing. Alternatively, a composite wave of these sine curves is generated.

  Next, an embodiment of the wind power generator of the present invention will be described in more detail. FIG. 6 (a) shows a side view showing a schematic structure of the wind turbine generator 2, and FIG. 6 (b) shows a plan view thereof. This wind power generator 2 includes a wind receiving blade 10, a bimorph element 21 that is a power generation unit, a connecting member 12 that connects the wind receiving blade 10 and the bimorph element 21, and a holding member 40 that holds the bimorph element 21. I have.

  The wind receiving blade 10 is the same as that shown in FIG. As is well known, the bimorph element 21 has a structure in which piezoelectric plates 21b and 21c are attached to a reinforcing plate 21a such as a metal plate. The connecting member 12 is a member that transmits the vibration of the wind receiving blade 10 to the bimorph element 21, and is made of, for example, metal or ceramics so as not to attenuate the vibration as much as possible. For joining the wind-receiving blade 10 and the connecting member 12 and joining the connecting member 12 and the bimorph element 21, a method using welding or a resin adhesive is adopted in consideration of materials constituting them. When using a resin adhesive, it is preferable to use a hard resin such as an epoxy resin.

  In the wind power generation apparatus having such a structure, the wind receiving blade 10 receives wind force and increases the vibration component in a direction substantially perpendicular to the wind direction, whereby the bimorph element 21 is bent to generate power, thereby You can get energy. At this time, if the connecting member 12 is extended with a wire such as the piano wire 24 and installed on the center line of the wind receiving blade, the strength of the wind receiving blade 10 can be increased and the durability can be increased. Furthermore, if the wind vane is “leaves”, reinforcing members such as wires (not shown) are fixed to the wind vane 10 in a “leaf vein” shape, thereby providing durability and receiving a more flexible and lightweight material. It can be used for the wing 10 and the design range can be further expanded. For example, a lightweight synthetic resin wind vane 10 is used, and a piano wire 24 is fixed to a “hardwood netting pattern” on this, so that the durability is equivalent to that of a metal wind vane and a lighter weight vane. Wind wings are obtained. Further, the arrangement of the mesh can be concentrated on the lower part of the wind receiving blades so that the wind energy can be received efficiently and the wind receiving blades having excellent durability can be obtained.

  In the case of a structure in which the wind receiving blade 10 is supported by the connecting member 12 as in the wind power generator 2, a power generation coil that generates power by electromagnetic induction can be used as the power generation unit instead of the bimorph element 21. FIG. 7 shows a schematic diagram of a wind turbine generator 3 provided with a power generation coil 32. In this case, the power generating coil 32 is driven by utilizing the reciprocating rotational motion generated in the spring material that is the power generating plate 31 through the connecting member 13 by the vibration of the wind receiving blades 10. The spring material that is the power generation plate 31 vibrates substantially at right angles to the wind direction, and the wind energy can be efficiently converted into vibration energy. In particular, in the case of a large power generator in which the length of the wind receiving blade 10 reaches several meters to several tens of meters, high mechanical strength is also required for the power generation unit to hold the wind receiving blade 10. . As such a power generation unit, the power generation coil 32 is preferably used. As the power generating coil 32 passes the magnetic flux from the magnet 33 as the spring plate 31 moves, an electromotive force and a current are generated in the coil.

The wind-receiving blade 30 shown in FIG. 8 is long and has a substantially arc shape in cross section perpendicular to the length direction, and the arc length at one end is different from the arc length at the other end. have. The end of the wind receiving blade 30 with the shorter arc length is connected to the connecting member. The wind receiving blade 30 is made of a metal material or resin material having a spring property, like the wind receiving blade 10.

  When the inner curved surface of the wind receiving blade 30 receives wind force, vibration similar to that of the wind receiving blade 10 is generated in the wind receiving blade 30 and is transmitted to the power generation section through the connecting portion. The length, thickness, end curvature, and arc length of the wind receiving blade 30 are set so that such vibration is efficiently generated.

  By the way, the wind receiving blades constituting the wind power generator of the present invention are not limited to the wind receiving blades 10 and 30, and when the wind force is received with one end in the longitudinal direction fixed, a predetermined twist is generated. The width may be changed in the longitudinal direction so as to generate vibration. As shown in FIG. 9 (a), the end may be narrower than the center and may be folded in the width direction. Furthermore, the end face of the open end may be curved instead of linear. Further, like a wind receiving blade 30a shown in a perspective view in FIG. 9 (b), it has a shape that tapers after its width gradually increases from the fixed end toward the release end. Also good.

  The wind turbine generator according to the present invention can of course be installed alone, but is a wind turbine generator system configured by using a plurality of wind turbine generators according to any one of claims 1 to 6. A wind power generation system comprising: a plurality of wind receiving blades arranged at predetermined intervals; and a current collector that collects electric energy generated by the plurality of power generation units in series and / or in parallel. can do. That is, a plurality of the above-described wind receiving blades are arranged at predetermined intervals, and electric energy generated in each power generation unit mainly using energy that vibrates in a direction substantially perpendicular to the wind direction generated in each wind receiving blade is connected in series and / or in parallel. It is preferable that a wind power generation system is configured by configuring a unit that collects current and combining such units singly or in combination.

  Hereinafter, embodiments of the wind power generation unit will be described. FIG. 10 is an explanatory diagram showing various examples of a wind receiving unit configured using a plurality of wind receiving blades 10a. The wind receiving unit 61 shown in FIG. 10 (a) has a structure in which a plurality of wind receiving blades 10a are attached to a rod-shaped holding member 71 in a row at a constant interval. The wind receiving unit 62 shown in FIG. 10 (b) has a structure in which a plurality of wind receiving blades 10a are radially attached to a disk-shaped holding member 72 so that the overall shape is substantially a fan shape. The wind receiving unit 63 shown in FIG. 10 (c) has a structure in which a plurality of wind receiving blades 10a are radially attached to the holding member 72 so that the overall shape is circular.

  In these wind receiving units 61 to 63, it is preferable that the surfaces of the wind receiving blades 10a face the same direction. In addition, a wind receiving blade having a length of several meters to 1 m or less is suitably used for such various power generation units.

  Next, an embodiment of a power generation system using such a wind receiving unit will be further described. FIG. 11 is an explanatory diagram showing a schematic configuration of a wind power generation system 80 including a plurality of wind receiving units 61. As shown in FIG.

  The wind power generation system has a structure in which the wind receiving blades are arranged in the same direction and the wind receiving units are housed in the same plane, and a plurality of wind receiving units 61 are arranged on the support column 79c.

  This wind power generation system includes a tail blade 79a, a connecting member 79b that connects the wind receiving unit 61 and the tail blade 79a, and a support mechanism 79c that rotatably supports the connecting member 79b. In this wind power generation system, when the tail blade 79a receives wind force, the tail blade 79a and the connecting member 79b match the wind direction, and the wind receiving blade of the wind receiving unit 61 matches the wind direction. In other words, it moves like a weathercock. Therefore, in the wind power generation system, even if the wind direction changes, the wind receiving unit 61 always coincides with the wind direction, and the power generation unit is arranged so that the vibration direction is substantially perpendicular to the wind direction. Since the wind receiving blade 10a always coincides with the wind direction, the operating efficiency is increased.

  In such wind receiving units 61 to 63, each of the wind receiving blades is substantially parallel to the wind direction at the same time, but it is considered rare that the blades vibrate with the same amplitude. A structure in which a rectifier circuit 91 is provided for each blade and electrical energy output from each rectifier circuit 91 is connected in series and / or in parallel to collect current is preferably used.

  The electrical energy produced by the wind power generators, etc. provided in the predetermined place is preferably directly used as household power or road / street lighting power in the vicinity of the place where the wind power generators are arranged. Or it is used by being charged in a predetermined charging device.

  As for the wind power generation apparatus and the wind power generation system of the present invention, a large one is suitable as a high power power generation apparatus, a medium / small one is suitable as a small power generation apparatus, and an operation and charging apparatus for various electric devices.

The perspective view which shows schematic structure of a wind power generator. FIG. 2 is a schematic plan view of the wind power generator shown in FIG. Explanatory drawing of wind receiving blade FIG. 2 is an explanatory diagram schematically showing a vibration form of the wind receiving blade shown in FIG. Explanatory drawing which shows an example of the current collection circuit which collects current from a piezoelectric plate. The front view and side view which show schematic structure of another wind power generator. Furthermore, explanatory drawing which shows schematic structure of another wind power generator. The perspective view which shows schematic structure of another wind receiving blade. Furthermore, the perspective view which shows schematic structure of another wind receiving blade. Explanatory drawing which shows the example of the electric power generation system comprised using the several wind power generator. Explanatory drawing which shows the example of the electric power generation system comprised using the several wind-receiving blade. Explanatory drawing which shows another example of the electric power generation system comprised using the several wind-receiving blade.

Explanation of symbols

1 ・ 2 ・ 3 Wind power generator
10, 10a, 30, 30a;
11, 11a, 11b, 21b, 21c, 31; diaphragm or piezoelectric plate
12 ・ 13 ； Connecting member
21; Piezoelectric bimorph element
21a; reinforcing plate
32; Generator coil
33; Magnet
40 ・ 50 ・ 71 ・ 72 ； Holding member
61 ・ 62 ・ 63; Wind power generation unit
78a; main strut
79a; tail
79b; connecting member
79c; Support mechanism
80 ・ 81; Wind power generation system
90; current collecting circuit
91; Rectifier circuit
92; Load
93; charge / discharge circuit
94; Diode
95; Electricity storage

Claims (8)

It is long and has a shape that is folded in half in the width direction at a predetermined angle, and its width is long so that a predetermined torsional vibration occurs when receiving wind force with one end in the length direction fixed. A receiving wing that is changing in direction,
A plate-shaped power generation section that generates power by vibrating by the vibration of the wind receiving blades;
An electric circuit for extracting electricity from the power generation unit;
A plane including the plate of the plate-shaped power generation unit and the wind direction are parallel to each other and installed such that the vibration direction is substantially perpendicular to the wind direction. Wind power generator.   The wind-receiving blade has two substantially strip-shaped plate members having opposite short sides that are different from each other at a predetermined angle, so that one end in the longitudinal direction is wider than the other end. The wind power generator according to claim 1, wherein the wind power generator has a structure joined at its long side.   3. The wind turbine generator according to claim 1, wherein a linear reinforcing member is provided in the folded folded line portion or the joint portion of the wind receiving blade. It is long and has a substantially arc-shaped cross section perpendicular to its longitudinal direction, and its width is such that a predetermined torsional vibration is generated when receiving wind force with one end in the longitudinal direction fixed. A receiving wing changing in the longitudinal direction;
A plate-shaped power generation section that generates power by vibrating by the vibration of the wind receiving blades;
An electric circuit for extracting electricity from the power generation unit;
A plane including the plate of the plate-shaped power generation unit and the wind direction are parallel to each other and installed such that the vibration direction is substantially perpendicular to the wind direction. Wind power generator. The power generation unit has a plate-like piezoelectric element that generates power by bending,
5. The wind power according to claim 1, wherein the piezoelectric element is attached to the wind receiving blade such that a bending direction is substantially perpendicular to the wind receiving. Power generation device. The power generation unit includes a plate spring material and a magnet having a power generation coil that generates power by electromagnetic induction,
5. The wind power generator according to claim 1, wherein the wind power generator is operated by the torsional vibration of the wind receiving blade to generate power by operating through the power generating coil. A wind power generation system configured by using a plurality of wind power generation devices according to any one of claims 1 to 6,
A plurality of the wind receiving blades are arranged at a predetermined interval,
A wind power generation system comprising a current collector that collects electric energy generated in a plurality of the power generation units in series and / or in parallel. A wind receiving unit having a configuration in which a predetermined number of wind receiving blades are arranged in a row, in parallel, in a longitudinal parallel, or in a radial manner so that the wind receiving surfaces face the same direction;
The tail,
A connecting member for connecting the wind receiving unit and the tail,
A support mechanism for rotatably supporting the connecting member;
Comprising
The plane including the plate of each plate-like power generation unit of the wind receiving unit is substantially parallel to the wind direction by receiving the wind force, and the vibration is substantially perpendicular to the wind direction. The wind power generation system according to 7.

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