JP3759945B2 - Wind power generator and wind power generation system - Google Patents

Description

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

  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 high power generation.
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 turbine generator that has a simple structure 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.

The present invention, as the first invention, is formed of a material having a spring property,
A long and trapezoidal plate member having different short side lengths is folded in half at an angle of 45 to 135 degrees in the width direction,
When receiving the wind force in a state where the shorter end portion of the short sides is supported , a receiving portion that generates a torsional vibration in which the bent portion on the front end side rotates about the longitudinal axis of the bent portion. Wind wings,
A power generation unit that generates power by vibration of the wind receiving blades;
The wind power generator characterized by comprising.

  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, the two plate members are preferably integral.

  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 deflected so that the torsional vibration of the wind receiving blade is transmitted to the piezoelectric element through the connecting member, thereby generating electric power. Also good.

  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. A hydraulic pump and a hydraulic generator may be used instead of the 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 second invention, the present invention is a wind power generation system configured by using a plurality of the wind power generation devices,
A plurality of the wind receiving blades are arranged at a predetermined interval,
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.

  In such a wind power generation system, a predetermined number of wind receiving blades are provided with a plurality of wind receiving units having a configuration in which the wind receiving surfaces are arranged in tandem, in parallel, in longitudinal parallel, or radially so that the surfaces receiving the wind face in the same direction. However, it is preferable that the plurality of wind receiving units have a configuration in which the surfaces receiving the winds face in different directions.

  In addition, a wind receiving unit having a configuration in which a predetermined number of wind receiving blades are arranged in tandem, parallel, longitudinal parallel, or radially so that wind receiving surfaces face the same direction, a tail, a wind receiving unit, and a tail And a support mechanism for rotatably supporting the connecting member, and the wind receiving surface of the wind receiving unit receives the wind force so that the wind receiving surface faces the windward according to the change in the wind direction. A configuration is also preferable.

  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, high power generation efficiency can be realized by directly transmitting the vibration of the wind receiving blade. Furthermore, since 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 can be realized, for example, the size and installation of the wind receiving blades An appropriate power generation unit can be selected in accordance with the purpose and the like. If a plurality of such wind power generators are used, it is possible to easily construct a wind power generation system that can perform various types of power generation from low output to high 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 front view showing a schematic structure of the wind power generator 1, and FIG. 2 is a perspective view of a wind receiving blade 10 constituting the wind power generator 1. The wind power generator 1 includes a wind receiving blade 10 that generates a predetermined vibration by receiving wind force, and piezoelectric plates 11a and 11b that are attached to the wind receiving blade 10 and that generate electric energy by the vibration of the wind receiving blade 10. And a holding member 12 that holds the wind receiving blade 10.

As shown in FIG. 2, the width of the wind receiving blade 10 changes in the longitudinal direction. That is,受風Tsubasa 10, the length of the short sides differ from each other in _2L 1, 2L ₂ respectively _{(the L} 1> L ₂₎ facing the length _{L 3} of受風Tsubasa 10 than the length of the short side Also, an extremely long (L ₃ >> L ₁ ) 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”). The holding member 12 holds the shorter end of the short sides of the wind receiving blade 10.

As the wind receiving blade 10, a metal material or a resin material having a spring property is preferably used. Here, it is assumed that the wind receiving blade 10 is made of a metal material. Limiting the length L ₃ of受風Tsubasa 10 is not, for example, several centimeters, several tens of centimeters, meters, and several tens of meters, can be arbitrarily set by the installation location and installation purposes. The shape (that is, the lengths L ₁ , L ₂ , L _{3 of} each side), the thickness, and the interior angle θ of the wind receiving blade 10 are efficient in terms of the vibration of the wind receiving blade 10 described later in consideration of the characteristics of the material used. Therefore, it is set appropriately so as to generate automatically.

In FIG. 2, a configuration in which one plate member is folded in half as the wind receiving blade 10 is illustrated. However, for example, two sheets having a short side length of L ₁ and L ₂ and a length of L ₃ are illustrated. The wind-receiving blade 10 may be formed by joining the plate members at their long sides. When the thickness of the wind receiving blade 10 is small, the wind receiving blade 10 can be folded in half by bending sheet metal processing, but when the thickness is large, the wind receiving blade 10 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.

  Each of the piezoelectric plates 11a and 11b, which are power generation units, includes an electrode film (not shown) on the main surface and is polarized in the thickness direction. The piezoelectric plates 11 a and 11 b are directly bonded to the surface of the wind receiving blade 10 on the inner angle θ side so that one electrode film is electrically connected to the wind receiving blade 10. Thereby, in the wind power generator 1, the wind-receiving blade 10 can be used as an output electrode for taking out electric power.

  In the wind turbine generator 1, the piezoelectric plates 11 a and 11 b are provided on the inner angle θ side of the wind receiving blade 10, but the piezoelectric plates 11 a and 11 b may be provided on the outer angle side of the wind receiving blade 10, and further the wind receiving blade 10. You may provide arbitrarily in each surface. Further, when the wind receiving blade 10 is large, a plurality of piezoelectric plates can be arranged on each surface of the wind receiving blade 10. In other words, it can be said that the wind receiving blade 10 has a structure in which two unimorph elements are joined so that the inner angle θ is formed on the long side.

  The holding member 12 only needs to have a predetermined hardness that can hold the wind receiving blade 10. For example, a metal material, a resin material, a ceramic material, a composite material made of these materials, or the like can be used. it can.

FIG. 3 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 orthogonal 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 release end side of the wind receiving blade 10 is defined as a point P.

The wind receiving blade 10 vibrates 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 vane 10 is stationary, the point P is located at the intersection (on the Z axis) of the X axis and the Y 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, and thus the fixed end side of the wind receiving blade 10 functions as a spring. "torsional oscillation" such as to rotate around the Z axis, is caused P point of the open end side of the wind receiving blades 10 reciprocates between the P ₁ point and P ₂ points on the X-Y plane and . At this time, the piezoelectric plates 11a and 11b are bent to generate electricity by the piezoelectric effect. The position of _one point and P ₂ point P is different depending on the direction and wind speed the wind hits (wind).

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

  FIG. 4 is an explanatory diagram showing an example of a current collecting circuit 90 that collects current from the piezoelectric plates 11a and 11b. The current collecting circuit 90 rectifies the electricity (alternating current) generated by the piezoelectric plates 11a and 11b, stores part of the power rectified by the rectifying circuit 91, and supplies the stored power to the load 92. And a charge / discharge circuit 93. The rectifier circuit 91 has a configuration in which a diode 94 is connected in a Wheatstone bridge type. Further, 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 out of 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 there is no wind when the wind receiving blade 10 does not operate, the power stored in the power storage body 95 is used. The load 92 can be operated. 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 power generator 1 can be variously modified. For example, the piezoelectric plates 11 a and 11 b may be provided on the entire surface of the wind receiving blade 10. Further, the wind receiving blade itself may be formed of a resin material having a piezoelectric function. Furthermore, although the single-plate piezoelectric plates 11a and 11b are shown as the piezoelectric elements, the bimorph element 21 used in the wind power generation apparatus 2 described later, a known unimorph element or a stacked bimorph element (multimorph element) is used. Also good.

  Next, another embodiment of the wind power generator of the present invention will be described. FIG. 5A shows a front view showing a schematic structure of the wind turbine generator 2, and FIG. 5B shows a side view thereof. The wind turbine generator 2 includes a wind receiving blade 10, a bimorph element 21 that is a power generation unit, a connecting member 22 that connects the wind receiving blade 10 and the bimorph element 21, and a holding member 23 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 22 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 22 and joining the connecting member 22 and the bimorph element 21, a method using welding or a resin adhesive is adopted in consideration of the materials constituting them. When using a resin adhesive, it is preferable to use a hard resin such as an epoxy resin.

  Even in the wind turbine generator 2 having such a structure, the wind receiving blade 10 receives the wind force and generates the vibration shown in FIG. 3, whereby the bimorph element 21 is bent to generate power, thereby obtaining electric energy. Can do.

  The wind power generator 2 can be modified into the form of the wind power generator 2a shown in the side view of FIG. That is, the angle between the longitudinal direction of the wind receiving blade 10 and the main surface of the bimorph element 21 is 0 degrees (parallel) in the wind power generator 2 but 90 degrees (vertical) in the wind power generator 2a. . Also in the wind power generator 2, when the wind receiving blade 10 receives the wind force and causes the vibration shown in FIG. 3, the bimorph element 21 undergoes bending mutation to generate electric power, thereby obtaining electric energy.

  In the case where the wind receiving blade 10 is supported by the connecting member 22 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 the wind turbine generator 5 provided with the power generation coil 40. In this case, the power generating coil 40 is driven by utilizing the reciprocating rotational motion generated in the connecting member 22 by the vibration of the wind receiving blade 10. In particular, in the case of a large-scale power generation device 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 in order to hold the wind receiving blade 10. . The power generation coil 40 is preferably used as such a power generation unit.

  It is also preferable to use a hydraulic power generation unit that uses hydraulic pressure (including water pressure and air pressure, the same applies hereinafter) instead of the power generation coil 40. FIG. 8 is an explanatory diagram showing a schematic configuration of the hydraulic power generation unit 50. The hydraulic power generation unit 50 includes a hydraulic cylinder 51, an accumulator 52, a hydraulic motor 53, a pressure adjustment valve 54 that adjusts the hydraulic pressure sent to the hydraulic motor 53, and a generator 55.

  The connecting member 22 is directly or indirectly driven by the piston of the hydraulic cylinder 51 so that the reciprocating rotational motion generated in the connecting member 22 when the wind receiving blade 10 receives the wind force and vibrates drives the piston of the hydraulic cylinder 51. To support. The hydraulic pressure generated in the hydraulic cylinder 51 by driving the piston is accumulated in the accumulator 52. As is well known, the accumulator 52 has a sealed shell divided into a chamber filled with nitrogen gas made of a rubber bag and an oil chamber, and stores pressurized oil at a compression ratio of nitrogen gas. The hydraulic pressure accumulated in the accumulator 52 is drawn through the pressure adjustment valve 54, and the spindle of the hydraulic motor 53 is rotated by this hydraulic pressure. The generator 55 is driven by the rotation of the spindle of the hydraulic motor 53 to generate electric energy.

  The accumulator 52 absorbs the impact pressure (oil hammer) generated in the hydraulic oil as necessary to attenuate the pulsation of the pressure oil, or stops the hydraulic cylinder 51 to prevent the wind receiving blade 10 from tilting. It also functions as a hydraulic power source.

  FIG. 9 is a perspective view showing a schematic structure of a wind turbine generator 3 which is still another embodiment of the present invention. The wind receiving blade 30 included in the wind power generator 3 is long and has a substantially arc shape in cross section perpendicular to the length direction, and the length of the arc at one end and the length of the arc at the other end. Have different shapes. The end of the wind receiving blade 30 with the shorter arc length is held by the holding member 32. The wind receiving blade 30 is made of a metal material or a resin material having a spring property like the wind receiving blade 10.

  The piezoelectric plates 31 a and 31 b are attached to the surface of the wind receiving blade 30. When the piezoelectric plates 31 a and 31 b are thin and the wind receiving blade 30 has a large curvature, the piezoelectric plates 31 a and 31 b can be attached while being bent along the curved surface of the wind receiving blade 30. When the wind receiving blade 30 has a small curvature, the piezoelectric plates can be attached in close contact with the wind receiving blade 30 by attaching a plurality of strips as piezoelectric plates.

  When the inner curved surface of the wind receiving blade 30 receives wind power, the wind receiving blade 30 is vibrated in the same manner as the wind receiving blade 10, whereby the piezoelectric plates 31 a and 31 b bend and generate electricity. The length, thickness, end curvature, and arc length of the wind receiving blade 30 are set so that such vibration is efficiently generated. Although the wind power generators 2 and 2a described above include the wind receiving blades 10 used in the wind power generator 1, the wind receiving blades 30 may be used instead of the wind receiving blades 10.

  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 a predetermined twist is generated when wind force is received with one end in the longitudinal direction fixed. The width may be changed in the longitudinal direction so as to generate vibration. Specifically, like the wind receiving blade 10a shown in a perspective view in FIG. 10A, the end may be narrower than the center and may be folded in half in the width direction. In the wind receiving blade 10a, the end surface of the open end may be curved instead of linear. Further, like a wind receiving blade 30a shown in a perspective view in FIG. 10 (b), it has a shape that tapers after its width gradually increases from the fixed end toward the release end. Also good.

FIG. 11 is an explanatory diagram showing a schematic structure of a wind turbine generator 4 which is still another embodiment of the present invention. FIG. 11A is a top view of the wind turbine generator 4, and FIG. 11B is a cross-sectional view taken along the line AA shown in the top view. In the wind power generator 4, the reinforcing plate 21 a of the bimorph element 21 is arranged so as to bridge the wind receiving blade 10. In this structure, the bimorph element 21 is arranged on the fixed end side of the wind receiving blade 10 so that the inner angle side surface on the open end side of the wind receiving blade 10 can receive wind force. Also in the wind power generator 4, when the wind receiving blade 10 receives wind force and the vibration shown in FIG. 3 is generated, the bimorph element 21 is bent to generate power.

  Of course, the wind power generator according to the present invention can be installed alone, but a plurality of wind receiving blades are arranged side by side at a predetermined interval, and each power generation unit is based on vibration energy generated in each wind receiving blade. It is preferable that a unit that collects the electric energy generated in the above in series and / or in parallel is configured, and such a unit is used alone or in combination to form a wind power generation system.

Hereinafter, embodiments of the wind power generation unit will be described.
FIG. 12 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. 12A has a structure in which a plurality of wind receiving blades 10a are attached to a rod-like holding member 71 in a row at a constant interval. The wind receiving unit 62 shown in FIG. 12B 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. 12C 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. The wind receiving unit 64 shown in FIG. 12 (d) has a structure in which a plurality of wind receiving blades 10 a are arranged so as to fit within the plane of the frame 73. The wind receiving unit 65 shown in FIG. 12 (e) has a structure in which a plurality of wind receiving blades 10 a are attached to the panel 74 side by side.

  In these wind receiving units 61-64, it is preferable that the surface of each wind receiving blade 10a is in the same direction. Further, in the wind receiving unit 65, the inner angle side surface of each wind receiving blade 10a is oriented in one direction, but the direction of the inner angle side surface of each wind receiving blade 10a may be random. 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.

  In such wind receiving units 61 to 64, since it is rare that the wind receiving blades vibrate at the same amplitude at the same time, a rectifier circuit 91 is provided for each wind receiving blade as the unit current collector. In addition, a structure in which electric energy output from each rectifier circuit 91 is connected in series and / or in parallel to collect current is preferably used.

  Next, an embodiment of a power generation system using such a wind receiving unit will be described. FIG. 13 is an explanatory diagram showing a schematic configuration of a wind power generation system 80 including a plurality of wind receiving units 61. FIG. 13A is a top view thereof, and FIG. 13B is a vertical sectional view thereof. In FIG. 13A, the wind receiving blade 10a is simply indicated by a black dot, and in FIG. 13B, the wind receiving unit 61 located on the rear side of the drawing is omitted.

  The wind power generation system 80 simulates the form of a tree, and has a structure in which a plurality of wind receiving units 61 are radially arranged around a support column 76. This wind power generation system 80 is similar to FIG. 13B, like a wind power generation system 80 ′ shown in FIG. 14, and wind receiving blades having different sizes from the lower part toward the upper part (in FIG. It is also preferable to deform to a structure in which “10b”, “10c”, “10d”, and “10e” are shown, and the wind receiving blades become smaller in this order).

  FIG. 15 is a front view showing a schematic configuration of a wind power generation system 81 including a plurality of wind receiving units 62. The wind power generation system 81 has a structure in which a plurality of wind receiving units 62 are attached to the support column 77 at regular intervals so that adjacent wind receiving units are alternately positioned on the left and right. It is also preferable to transform the wind power generation system 81 into a structure in which adjacent wind receiving units are attached to the columns 77 at regular intervals so that they are shifted by 90 degrees when viewed from the longitudinal direction of the columns 77.

  FIG. 16 is an explanatory diagram showing a schematic configuration of the wind power generation system 82 including the wind receiving unit 63. FIG. 16A is a top view thereof, and FIG. 16B is a front view thereof. In the wind power generation system 82, the main columns 78a are formed such that the holding members 78b and 78c having a cross shape and different lengths of the rods are alternately displaced from each other by 45 degrees when viewed from the longitudinal direction of the main columns 78a. The wind receiving unit 63 is attached to each end of the rod portions of the holding members 78b and 78c.

  FIG. 17 is an explanatory diagram showing a schematic configuration of another wind power generation system 83 using the wind receiving unit 63. The wind power generation system 83 includes a tail blade 79a, a connecting member 79b that connects the wind receiving unit 63 and the tail blade 79a, and a support mechanism 79c that rotatably supports the connecting member 79b. In the wind power generation system 83, when the tail blade 79a receives wind force, the tail blade 79a is disposed on the leeward side, and the wind receiving unit 63 is disposed on the windward side. In other words, it moves like a weathercock. Therefore, in the wind power generation system 83, even if the wind direction changes, the wind receiving unit 63 is always disposed on the windward side, and the wind receiving blade 10a vibrates, so that the operation efficiency is increased.

  FIG. 18 is an explanatory diagram showing an arrangement form of the above-described power generation apparatus, wind receiving unit, and wind power generation system. The installation location of large-sized wind receiving blades ranging from several meters to several tens of meters includes places where existing propeller-type power generators are installed, such as places where natural wind blows near the coastline, mountains For example, the valley of the earth. In this case, considering the vibration amplitude at the maximum wind speed based on weather experience, the wind receiving blades may be arranged at intervals that do not come into contact with each other during the vibration.

  The tree-type wind power generation system 80 ′ and the like can be arranged, for example, around a coastline or a house, and in this case, can play a role as a windbreak forest. When the wind power generation system 80 'or the like is arranged near the sandy beach, it can function as a sand protection forest. Further, the panel-type wind receiving unit 64 can be arranged on the side of the road, the side of the track, or around the house. In this case, the guard unit, the cross wind prevention fence, the entry prevention fence, the soundproof wall, etc. Can be given a role. Furthermore, the wind receiving unit 64 can be attached to wind exhausted from exhaust facilities used in various factories, buildings, houses, etc., for example, exhaust ports of boilers and air conditioners. And efficient power generation becomes possible. The wind receiving unit 65 can be provided, for example, on the roof of a house.

  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. Alternatively, a predetermined charging device is charged and used.

  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 front view which shows schematic structure of a wind power generator. The perspective view of the wind receiving blade which comprises the wind power generator shown in FIG. Explanatory drawing which shows typically the 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, the side view which shows schematic structure of another wind power generator. Furthermore, the front view which shows schematic structure of another wind power generator. Explanatory drawing which shows schematic structure of a hydraulic power generation unit. Furthermore, the perspective view which shows schematic structure of another wind power generator. The perspective view which shows schematic structure of another wind receiving blade. Furthermore, explanatory drawing which shows schematic structure of another wind power generator. Explanatory drawing which shows the various examples of the wind receiving unit comprised using the several wind receiving blade. Explanatory drawing which shows schematic structure of a wind power generation system. Explanatory drawing which shows schematic structure of another wind power generation system. Furthermore, explanatory drawing which shows schematic structure of another wind power generation system. Furthermore, explanatory drawing which shows schematic structure of another wind power generation system. Furthermore, explanatory drawing which shows schematic structure of another wind power generation system. Explanatory drawing which shows typically the arrangement | positioning form of a power generator, a wind receiving unit, and a wind power generation system.

Explanation of symbols

1, 2, 2a, 3, 4, 5; wind power generators 10, 10a to 10e, 30, 30a; wind receiving blades 11a, 11b, 21b, 21c, 31a, 31b; piezoelectric plates 12, 23, 32; 21; Piezoelectric bimorph element 21a; Reinforcing plate 22; Connecting member 40; Power generation coil 50; Hydraulic power generation unit 51; Hydraulic cylinder 52; Accumulator 53; Hydraulic motor 54; Hydraulic pressure adjustment valve 55: Generators 61, 62, 63, 64, 65; Wind receiving unit 71, 72, 78b, 78c; Holding member 73; Frame 74; Panel 76, 77; Column 78a; Main column 79a; Tail 79b; Connecting member 79c; Support mechanism 80/80 '/ 81/82 / 83; wind power generation system 90; current collecting circuit 91; rectifier circuit 92; load 93; charge / discharge circuit 94; diode 95;

Claims (9)

Formed of springy material,
A long and trapezoidal plate member having different short side lengths is folded in half at an angle of 45 to 135 degrees in the width direction,
When receiving the wind force in a state where the shorter end portion of the short sides is supported , a receiving portion that generates a torsional vibration in which the bent portion on the front end side rotates about the longitudinal axis of the bent portion. Wind wings,
A power generation unit that generates power by vibration of the wind receiving blades;
The wind power generator characterized by comprising.   In the wind receiving blade, two substantially strip-shaped plate members having opposite short sides having different lengths form a predetermined angle, and 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.   The wind turbine generator according to claim 2, wherein the two plate members are integrated. The power generation unit has a piezoelectric element that generates power by bending,
The wind power generator according to any one of claims 1 to 3 , wherein the piezoelectric element is attached to the wind receiving blade. And further comprising a connecting member for connecting the wind receiving blade and the power generation unit, and the power generation unit includes a piezoelectric element that generates power by bending,
The torsional vibration of the wind receiving blades by transmitting to the piezoelectric element via the coupling member, to any one of claims 1 to 3, characterized in that power is generated by bending the piezoelectric element The wind power generator described. A connecting member that connects the wind-receiving blade and the power generation unit; and the power generation unit includes a power generation coil that generates power by electromagnetic induction, or a hydraulic pump and a hydraulic power generator,
Transmitting the torsional vibration of the wind-receiving blade to the power generation coil or the hydraulic pump and the hydraulic power generator via the connecting member, thereby operating the power generation coil or the hydraulic pump and the hydraulic power generator to generate power. The wind power generator according to any one of claims 1 to 3 , wherein the wind power generator is characterized. A wind power generation system configured by using a plurality of wind power generation devices according to any one of claims 1 to 5 ,
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 plurality of wind receiving units having a configuration in which a predetermined number of the wind receiving blades are arranged in tandem, in parallel, in longitudinal parallel, or radially so that wind receiving surfaces face the same direction,
The wind power generation system according to claim 7 , wherein surfaces of the plurality of wind receiving units that receive wind from each other face in different directions. A wind receiving unit having a configuration in which a predetermined number of the wind receiving blades are arranged in a row, in a parallel, in a longitudinal parallel, or in a radial manner so that surfaces receiving wind are directed in 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 wind power generation system according to claim 7 , wherein the wind receiving surface of the wind receiving unit faces the windward according to a change in wind direction when the tail blade receives wind force.

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