JP2009024583A - Wind power generation module and wind power generation unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently convert energy of wind to electric energy while inhibiting rise of cost without changing basic dimensions by adding a simple device. <P>SOLUTION: A wind power generation module 10 is provided with a strip-shaped wind receiving plate 11 having a fixed end at a base end and a free end at a tip and vibrating in a bending mode having a fulcrum at the fixed end when the same receives wind, a piezoelectric element 12 fixed on a plate surface of the wind receiving plate 11 and deforming with accompanying bending vibration of the wind receiving plate 11 to generate power by piezoelectric effect, and a streamer member 13 attached in a tip of the wind receiving plate 11, made blow and flow by receiving wind to assist bending vibration of the wind receiving plate 11. A wind power generation unit is constructed by putting the wind power generation modules 10 side by side and fixing the same on a common base 100. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wind turbine generator that can extract electrical energy from wind power, and more particularly to a wind turbine generator that uses a piezoelectric element that can extract electric power from wind power using a piezoelectric element.

  2. Description of the Related Art Conventionally, a wind power generator that generates power by providing a piezoelectric element on a plate surface of a wind receiving plate (vibrating plate) that vibrates in response to wind is known. In addition, a light emitting sign device is known in which a light emitting element is connected to the piezoelectric element, and the light emitting element emits light with the generated energy, for example, so as to call attention to a traffic sign (see, for example, Patent Document 1). ).

  In addition, with the aim of efficiently causing vibration that contributes to power generation, an eddy current generating member that generates an eddy current of air that vibrates the wind receiving plate when the wind is received (the bent piece) ) Has also been proposed (see, for example, Patent Document 2).

In these wind power generators, the wind receiving plate and the piezoelectric element are vibrated by the natural wind or the wind caused by the traffic of the automobile and the like, thereby generating power.
JP-A-2005-352298 JP-A-11-303726

  By the way, in this type of wind power generator, it is the most important issue that the wind receiving plate is vibrated by the influence of the wind. To achieve this, the area of the wind receiving plate is increased to receive the wind. It is effective to make it easier.

  However, if the area of the wind receiving plate is simply increased, the size is increased and the cost is increased. In addition, as described in Patent Document 2, it is effective to provide a member such as a vortex generating member, but adding an extra work piece is likely to increase the cost.

  The present invention has been made in consideration of the above circumstances. By simply adding a simpler device, the basic dimensions are not changed, and the cost of electricity is efficiently reduced while suppressing an increase in cost. It is an object of the present invention to provide a wind power generation module capable of converting to energy and a wind power generation unit using the module.

  The wind power generation module of the invention of claim 1 is a strip-shaped wind receiving plate whose base end is a fixed end, the tip is a free end, and which is bent and vibrated around the fixed end when receiving wind, A piezoelectric element that is fixed to the plate surface of the wind receiving plate and generates power by the piezoelectric effect by being deformed along with the bending vibration of the wind receiving plate, and is attached to the tip of the wind receiving plate and receives wind to blow and flow. Thus, it is characterized by comprising a wind-off member that serves to assist bending vibration of the wind receiving plate.

  A second aspect of the present invention is the wind power generation module according to the first aspect, characterized in that the airflow member is made of a ribbon-shaped cloth material or a film material that is more flexible than the wind receiving plate.

  A third aspect of the present invention is the wind power generation module according to the first or second aspect, wherein a circuit for taking out the electric power generated by the piezoelectric element is integrally provided.

  Invention of Claim 4 is a wind power generation module of Claim 1 or 2, Comprising: On the said wind-receiving plate, the light emitting element and the light emitting circuit which makes the said power generation element light-emit with the electric power generated with the said piezoelectric element are provided. It is characterized by being provided.

  A wind power generation unit according to a fifth aspect of the present invention is the wind power generation module according to any one of the first to fourth aspects, wherein the wind receiving module is oriented with the fixed ends fixed to a common base. It is characterized by multiple arrangements.

  According to the invention of claim 1, even if the area of the wind receiving plate is not particularly increased, the wind receiving plate can be mounted only by adding a simple device that attaches a wind-sink member that can be made of an inexpensive material to the tip of the wind receiving plate. It can make it easy to vibrate under the influence of wind. In other words, since the wind-flow member is at the free end, the wind receiving plate is likely to bend and vibrate even in a small wind, and the power generation capacity can be increased. In particular, since the blow-off member flutters freely by receiving various winds, the power generation efficiency of the piezoelectric element is increased by being transmitted to the wind receiving plate. In addition, since only the airflow member having a very simple configuration is added, an increase in cost can be suppressed.

  In addition, the length of the windsock member can be adjusted freely by changing the length, so the length can be determined in consideration of the installation environment. At this stage, it can be freely cut to an appropriate length.

  According to invention of Claim 2, since the blowing member was comprised with the ribbon-shaped cloth material and the film material, the front-end | tip of a wind-receiving board can be easily carried out by sticking an edge part or stopping with things like a clip. It can be attached to and can be kept at low cost.

  According to the third aspect of the present invention, the module itself is provided with a circuit for taking out the electric power. Therefore, the module can be used by being attached to an arbitrary place and connected to a load such as a lamp. Can be connected to a larger load by sequentially connecting the circuits, and power can be stored in an external power storage means.

  According to the invention of claim 4, since the light emitting element and the light emitting circuit are provided in the module itself, it can be used alone or in plural as a wind power emitting device.

  According to the invention of claim 5, since the plurality of wind power generation modules are fixed on the common base, the power generation capability as a unit can be exhibited. In addition, it is easy to handle because it is not necessary to mount the module separately during use.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a wind power generation unit configured by mounting a large number of wind power generation modules according to the embodiment, and FIG. 2 is a side view of the wind power generation unit.

  In this wind power generation unit, a large number of wind power generation modules 10 are arranged on a common base 100 made of a hard material with a base end fixed.

  Each wind power generation module 10 has a base end as a fixed end, a tip as a free end, and a strip-shaped wind receiving plate 11 that bends and vibrates around the fixed end when receiving wind, and a wind receiving plate 11. The piezoelectric element 12 that is fixed to both the plate surfaces and deforms in accordance with the bending vibration of the wind receiving plate 11 and is attached to the tip of the wind receiving plate 11 by being deformed in accordance with the piezoelectric effect. And a wind-sink member 13 that serves to assist bending vibration of the wind receiving plate 11. In the wind power generation unit, a plurality of wind power generation modules 10 are arranged with the direction of the wind receiving plate 11 aligned.

  The wind receiving plate 11 is made of a hard and elastic plastic (polyethylene, polypropylene, ABS, etc.) plate or a metal thin plate. Further, the blow-off member 13 is made of a ribbon-shaped cloth material or film material that is more flexible than the wind receiving plate 11. Further, the wind receiving plate 11 and the base 100 are integrally provided with a circuit for taking out the electric power generated by the piezoelectric element 12 to the outside.

  As described above, when the air blowing member 13 is attached to the tip of the wind receiving plate 11, the air blowing member 13 flutters under the influence of various winds, so that the air receiving plate 11 can be vibrated even in a small wind. As a result, the piezoelectric element 12 can efficiently generate power. That is, if only the wind receiving plate 11 reacts only with the wind in the direction A1 that is perpendicular to the plate surface of the wind receiving plate 11, the wind receiving plate 11 is bent and deformed in the direction of arrow B. If 13 is attached to the free end, the blowing member 13 flutters even with the wind in the direction A2 irrelevant to the wind receiving plate 11, so that the wind receiving plate 11 vibrates due to the fluttering, thereby generating power. It will be.

  Thus, even if the area of the wind receiving plate 11 is not particularly increased, the wind receiving plate 11 can be winded only by adding a simple device that attaches the airflow member 13 that can be made of an inexpensive material to the tip of the wind receiving plate 11. It can make it easy to vibrate under the influence of In other words, since the air blowing member 13 is at the free end, the wind receiving plate 11 is likely to bend and vibrate even with a small wind, and the power generation capacity can be increased. In particular, the blowing member 13 flutters freely by receiving various winds, so that the power generation efficiency of the piezoelectric element 12 is increased by being transmitted to the wind receiving plate 11. Further, since only the blow-off member 13 having a very simple configuration is added, an increase in cost can be suppressed.

  In addition, since the length of the airflow member 13 can be adjusted by freely changing the length, the length can be determined in consideration of the installation environment, and the length can be determined in advance by making it longer in advance. It can be freely cut to an appropriate length at the stage of installation.

  Further, since the blowing member 13 is formed of a ribbon-shaped cloth material or film material, the blowing member 13 can be easily attached to the tip of the wind receiving plate 13 by attaching the end portion or stopping with a clip or the like. 13 can be attached, and it can suppress to low cost.

  In addition, since the wind power generation unit of FIG. 1 is configured by fixing a plurality of wind power generation modules 10 on a common base 100, the unit can exhibit a large power generation capability.

Next, an actual installation example of the wind power generation module 10 described above will be described with reference to FIGS.
In the first installation example shown in FIG. 3, many wind power generation modules 10 are attached to the upper end of the temporary wall 201 at the construction site. Since the construction site is provided with a display board 202 for displaying construction contents, a contractor, and the like, the wind power generation module 10 according to the embodiment of the present invention is used as a power source of the display lamps 211 and 212 of the display board 202. I use it. Further, power is also supplied from the wind power generation module 10 to the guide lamp 213 on the roadside of the construction site.

  In the second installation example shown in FIG. 4, many wind power generation modules 10 are attached to the upper end of the sound insulation wall 222 of the highway 221. Then, power is supplied from the wind power generation module 10 to the caution lamp 231 provided immediately before the curve.

  In the third installation example shown in FIG. 5, many wind power generation modules 10 are attached to the upper ends of the guard rails 252 of the road 251 in front of the tunnel 255, and the electric power generated by these wind power generation modules 10 is used to A caution lamp 261 provided on the front wall, a lamp 263 of a roadside sign 262, a lane display lamp 264, and the like are caused to emit light.

  Thus, the wind power generation module of the present invention can be used in a wide range of fields. Moreover, since it is wind power generation, it can be installed anywhere where there is wind, and it can continue to supply necessary power day and night.

  In addition, when the circuit which takes out electric power outside in the wind power generation module 10 itself is provided, it can be used by attaching it to an arbitrary place as a single unit and connecting it to a load such as a lamp, or combining a plurality of circuits. Can be connected to a larger load, or power can be stored in an external power storage means.

  In addition, when the light-emitting element and the light-emitting circuit are provided in the wind power generation module itself, it can be used alone or in plural as a wind-power-emitting device.

It is a front view of the wind power generation unit comprised by attaching many wind power generation modules of embodiment of this invention. It is a side view of the wind power generation unit. It is a figure which shows the actual 1st installation example of the wind power generation module of embodiment of this invention. It is a figure which shows the actual 2nd example of installation of the wind power generation module of embodiment of this invention. It is a figure which shows the actual 3rd installation example of the wind power generation module of embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Wind power generation module 11 Wind receiving plate 12 Piezoelectric element 13 Blowing member

Claims (5)

The base end is a fixed end, the tip is a free end, and a strip-shaped wind receiving plate that bends and vibrates around the fixed end when receiving wind,
A piezoelectric element that is fixed to the surface of the wind receiving plate and that generates power by the piezoelectric effect by being deformed along with the bending vibration of the wind receiving plate;
A wind power generation module, comprising: a wind-down member attached to a front end of the wind receiving plate and configured to assist in bending vibration of the wind receiving plate by receiving and blowing wind. The wind power generation module according to claim 1,
The wind power generation module, wherein the wind-off member is made of a ribbon-shaped cloth material or film material that is more flexible than the wind receiving plate. The wind power generation module according to claim 1 or 2,
A wind power generation module, wherein a circuit for taking out the electric power generated by the piezoelectric element is provided integrally. The wind power generation module according to claim 1 or 2,
A wind power generation module, wherein the wind receiving plate is provided with a light emitting element and a light emitting circuit for causing the power generating element to emit light by electric power generated by the piezoelectric element.   The wind power generation module according to any one of claims 1 to 4, wherein a plurality of wind power generation modules are arranged in a state in which the directions of the wind receiving plates are aligned with each fixed end fixed to a common base. Power generation unit.

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