JP5189689B1 - Power generator - Google Patents

Abstract

A power generation device that can be reduced in size with a simple configuration and can be easily installed.
SOLUTION: Each plane member 12 extends in a direction perpendicular to the plane of the plane body 12 from one end portion of each string member 16 toward the other end portion of each string member 16. The support columns 14A1 and 14A2 are gradually separated from each other, and the support columns 14 are separated from each other by a predetermined distance in a direction orthogonal to the plane of the plane body 12 and are separated from the plane of the plane body 12 by a predetermined distance. It consists of
[Selection] Figure 9

Description

  The present invention relates to a power generator using a fluid such as wind.

  Recently, there is a demand for promoting the use of renewable and clean energy, and wind power generation is known as one of the typical examples. As a wind power generator, a wind turbine such as a propeller is generally used. In addition to this, there is also one that uses vibration caused by wind. For example, Patent Document 1 below uses a flag flutter.

Japanese Patent No. 4590641

  However, in the case of a configuration using a windmill, shadow flicker, bird strike, landscape problems, etc. may occur. Further, in the case of the method disclosed in Patent Document 1, there is a problem that the structure becomes complicated and large, resulting in high costs, for example, the constituent members must be arranged in places other than the support columns. Furthermore, the method of Patent Document 1 requires a great deal of time for installation.

  Then, in view of the said problem, this invention aims at providing the electric power generating apparatus which can implement | achieve size reduction with a simple structure and can be installed easily.

  The present invention includes a planar body that vibrates due to a fluid flow, an energy conversion unit that converts vibration energy associated with the vibration of the planar body into electrical energy, and vibration energy generated in the planar body that is coupled to the planar body. A power generation device including a transmission unit that transmits to the energy conversion unit, a traction unit that can pull the transmission unit, and a support that can be fixed to a building, the ground, or the like, wherein the transmission unit is a string member One end of the plurality of string-like members is attached to one part on one side of the planar body on the column side, and the other end of the plurality of string-like members is the energy conversion unit and the traction unit. The flat body is provided so as to be able to flutter freely without having a natural period by the string-like member, from one end of each string-like member to the other end of each string-like member Towards each The string-like member is gradually separated from the plane body in a direction orthogonal to the plane of the plane body, and the strut is separated by a predetermined distance in a direction orthogonal to the plane of the plane body. And it is comprised by a pair of support | pillar member spaced apart by predetermined distance from the surface of the said flat body.

  In this case, inside the one strut member constituting the pair of strut members, the energy conversion unit connected to the other end portion of one of the strut members separated from each other and the strut members The traction portion is accommodated, and the other strut member constituting the pair of strut members is connected to the other end portion of the other cord-like member among the cord-like members spaced apart from each other. The energy conversion unit and the traction unit are accommodated.

  In this case, the vibration generated in the plane body is converted into a reciprocating motion along the length direction of the string-like member located between the energy conversion section and the plane body, and transmitted to the energy conversion section. It is preferred that

  In this case, the traction unit moves the string-like member accompanying vibration along the plane direction of the planar body and movement of the string-like member accompanying vibration along a direction orthogonal to the plane of the plane body. It is preferable to apply a restoring force to any of the above.

  In this case, the column member includes a support member for supporting the transmission unit, and the other end portions of the plurality of string-like members are attached to the energy conversion unit and the traction unit via the support member. Preferably it is.

  In this case, it is preferable that the column member is attached to the rotating means so as to be rotatable around a predetermined axis.

  According to the present invention, when a flag flutter is used for power generation, a mechanism necessary for power generation can be integrated with the support. Thereby, it can be set as a small and simple electric power generating apparatus, and a manufacturing cost is suppressed by extension. Moreover, it is excellent in the portability of a power generation device, and installation takes less time. Furthermore, it is suitable for installation of power generators in places where the harmful effects of windmills are likely to manifest, such as in urban areas, residential areas, along roads, and wild bird landings, and can be expected to contribute to the spread of wind power generation.

  In particular, since the support column is attached to the rotating means, the restoring force works as the rotation force of the support column, and the support column can rotate and follow naturally according to the change in the wind direction.

It is the figure which showed the structure of the electric power generating apparatus which concerns on one Embodiment of this invention. (A) is the figure which showed the behavior of the string which arises in a wind direction in the structure of this invention, (B) is the figure which showed the behavior of the string which arises in the direction orthogonal to a wind direction. It is the figure which showed the structure of one Example of the rotation means of the support | pillar of the electric power generating apparatus which concerns on one Embodiment of this invention. It is the figure which showed the structure of one Example of the string pulling means of the electric power generating apparatus which concerns on one Embodiment of this invention. It is the figure which showed the structure of the Example of the electric power generation means of the electric power generating apparatus which concerns on one Embodiment of this invention. (A) is the figure which showed the behavior of the string which arises in a wind direction in what changed the flag pole into the string body in 1st Embodiment of patent document 1, or the string body in the 2nd embodiment, (B) These are the figures which showed the behavior of the string which arises in the direction orthogonal to a wind direction. It is the figure which showed the structure of the modification 1 of the electric power generating apparatus which concerns on one Embodiment of this invention. It is the figure which showed the structure of the modification 2 of the electric power generating apparatus which concerns on one Embodiment of this invention. It is the figure which showed the structure of the modification 3 of the electric power generating apparatus which concerns on one Embodiment of this invention.

  A power generator according to an embodiment of the present invention will be described with reference to the drawings. This embodiment demonstrates the aspect of the wind power generator using a wind force. Note that the present invention is not limited to a wind power generator using wind power as long as it uses fluid. In addition to the wind power generator, the inventor also assumes a power generator using a liquid such as a tidal current or a river flow, and is included in the present invention.

  As shown in FIG. 1, the power generation device 10 includes a flag 12 and a column 14. One side end of two strings 16 is attached to one side of the flag 12 on the column 14 side. The flag 12 is provided so as to be able to flutter freely without having a natural period by a plurality of strings 16.

  A string supporting means 18 for supporting the string 16 is fixed to the column 14. A total of four string support means 18 are provided. Each string support means 18 is separated by a predetermined distance along a direction (vertical direction) orthogonal to the surface of the flag 12 in a state where it has been extended by receiving wind.

  The other end of each string 16 is attached to the power generation means 20 and the string pulling means 22 via the string support means 18. The power generation means 20 and the string pulling means 22 are arranged in series with each other.

  Here, from the one side end of each string 16 toward the other side end of each string 16, the flag 12 extends along a direction perpendicular to the plane of the flag 12 (the arrow Y direction in FIGS. 1 and 2). It is comprised so that it may leave | separate gradually from. In other words, the distance between the strings 16 is set so as to increase from the one side end of each string 16 toward the other end of each string 16.

  The support | pillar 14 is attached to the rotation means 24 (refer FIG. 3) so that it can rotate around an axis | shaft.

  According to the power generation device 10, as shown in FIGS. 2A and 2B, vibrations generated in the wind direction (direction of arrow X in FIGS. 1 and 2) and vibrations generated in a direction perpendicular thereto (FIGS. 1 and 2). 2 in the direction of arrow Y in FIG. 2 acts on the flag 12 as a combined vibration. The string 16 reciprocates along the length of the string 16 due to the combined vibration of the flag 12. The reciprocating motion of the string 16 is embodied as a change in the length L (illustrated by the arrow L in FIGS. 1 and 2) of the string 16 that appears between the flag 12 and the string support means 18.

  The string 16 does not expand and contract. However, the change in the length L is further converted into a reciprocating motion via the string support means 18 and transmitted to the power generation means 20.

  In addition, in this embodiment, since the structure using the string support means 18 is cited as an example, the combined vibration of the flag 12 (in other words, the reciprocating movement of the string 16) is caused between the flag 12 and the string support means 18. It is embodied by a change in the length L (shown by the arrow L in FIGS. 1 and 2) of the string 16 that appears in between. However, when adopting a configuration that does not use the string support means 18, the combined vibration of the flag 12 appears between the flag 12 and the string support means 18 and the length L of the string 16 (in FIGS. 1 and 2). Rather than being converted into a change in the direction indicated by the arrow L, the change is transmitted to the power generation means 20 while reciprocating along the length direction of the string 16 located between the power generation means 20 and the flag 12.

  Further, in FIG. 2B, when the flag 12 is about to be far away from the center point due to a change in the wind direction or the like, a larger traction force is applied to the longer one of the two strings 12 that is pulled. The restoring force acting from 22 and trying to return to the vicinity of the center point works. Here, since the support column 14 is attached to the rotating means 24 (see FIG. 3), the restoring force works as the rotation force of the support column 14, and the support column 14 naturally rotates and follows in accordance with the change in the wind direction. . In this way, the string pulling means 22 provides a restoring force for both movement of the string 16 due to vibration along the plane direction of the flag 12 and vibration along the direction orthogonal to the plane of the flag 12. Make it work.

  Here, if the structure is slidable so that the distance between the upper and lower string support means 18 can be adjusted, the size of the flag 12 can be changed. Moreover, the place which attaches the string 16 to the flag 12 and the component corresponding to it are not restricted to the upper and lower two places, and may be increased to an arbitrary number.

(Comparison with conventional technology)
Next, it will be compared with Patent Document 1 which is a prior art. For example, the first embodiment or the second embodiment of Patent Literature 1 describes a configuration in which the energy conversion units are not separated along a direction orthogonal to the plane of the flag. However, this configuration causes technical problems in the following points. That is, as shown in FIG. 6A, in the first embodiment of Patent Document 1 in which the flagpole is changed to a string, or the string in the second embodiment, the wind direction (the surface direction of the flag 102: The vibration of the flag 102 in the direction indicated by the arrow X in FIG. 6A is converted into the reciprocating motion of the string 100 as it is. However, as shown in FIG. 6B, the vibration of the flag 102 in the direction orthogonal to the plane direction of the flag 102 (the arrow Y direction in FIG. 6B) is a movement that changes the angle of the string 100. However, the efficiency of conversion as the reciprocating motion of the string 100 is lowered. Therefore, in consideration of the fact that the vibration energy (force) generated in the flag 102 is transmitted to the energy conversion unit for the first time when the force pulling the string 100 is applied and the reciprocating motion is performed, the movement of changing the angle of the string 100. Does not contribute to force transmission at all. For this reason, in the structure of patent document 1, the vibration energy (force) which arose in the flag 102 cannot be reliably transmitted to an energy conversion part, but the technical problem that energy conversion efficiency falls arises.

  On the other hand, as in the present invention, one end of the plurality of strings 16 is attached to one part on one side of the flag 12 on the column 14 side, and the other end of the plurality of strings 16 is connected to the energy conversion unit 20. And a structure that is attached to the pulling portion 22 and that is gradually separated from the flag 12 along a direction perpendicular to the surface of the flag 12 from one end of each string 16 toward the other end of each string 16. Thus, vibration energy (force) generated in the flag 102 can be reliably transmitted to the energy conversion unit.

  In addition, as the string support means 18, a ring through which the string 16 can pass or a pulley that can swing can be used. When using a ring, it is desirable to reduce frictional resistance by coating with a fluororesin.

  As the power generation means 20, a piezoelectric element, an electromagnetic induction generator, or the like can be used.

  As the string pulling means 22, an elastic body such as a spring or rubber or a take-up reel can be used.

  The power generation means 20 includes both a movable portion and a fixed portion, and the movable portion is connected to the string pulling means 22. For example, in the piezoelectric element, one end becomes a movable part and the other end becomes a fixed part. In a linear generator in an embodiment described later, the magnet body becomes a movable part and the coil becomes a fixed part. Alternatively, a configuration in which the magnet body is a fixed portion and the coil is a movable portion can be employed. In general electromagnetic induction rotary generators, the rotating shaft is a movable part and the housing is a fixed part. In this case, it is used with a mechanism that converts reciprocating motion into rotational motion, such as a take-up reel or gear mechanism. It is done.

  In addition, when using an electromagnetic induction type rotary generator and a take-up reel, it is also possible to make the both into an integrated structure. Furthermore, by attaching them to the position of the string support means 18, a structure in which the string support means 18 is omitted can be obtained.

  Here, an embodiment of the rotating means 24 of the support column 14 will be described.

  As shown in FIG. 3, the rotating means 24 includes a long cylinder 26 with a conductor having a long axial length and a short cylinder 28 with a conductor having a shorter axial length than the long cylinder 26. The inner diameter of the short cylinder 28 is larger than the inner diameter of the long cylinder 26. The rotating means 24 has a structure in which a thin long cylinder 26 is inserted into a thick short cylinder 28 and an insulator (not shown) is sandwiched between them.

  The lower portions of the cylinders 26 and 28 are fixed to a base (not shown) or another support (not shown) fixed to the base. Bearings 30 and 32 are attached to the upper portions of the respective cylinders 26 and 28 so that the inner rings are in contact with each other. Further, the outer rings of the bearings 30 and 32 are attached to the conductor plates 34 and 36, respectively. The side surfaces of the conductor plates 34 and 36 are respectively attached to the pillars 14. The support column 14 is insulated between at least two conductor plates 34 and 36.

  According to this structure, the column 14 can be rotated, and the output of the power generation means 20 is connected to the conductor plates 34 and 36, so that the power generation means 20 is connected to the bases 26 and 28 attached to the base through the bearings 30 and 32. Can be output to the outside.

  The bearings 30 and 32 used here are preferably highly conductive using conductive grease. Since the output waveforms and phases of the respective power generation means 20 do not always match, it is preferable to connect them after rectification individually, avoiding connection in series or parallel without rectification.

  Next, an embodiment of the string pulling means 22 will be described.

  As shown in FIG. 4, the string pulling means 22 may have the following structure instead of using an elastic body (spring, rubber, etc.) alone. That is, the string 17 is further connected to the two power generation means 20 connected to the same location of the flag 12 via the string 16. The string 17 is interposed by a string support means 19 (ring, pulley, etc.) fixed to the column 14. An elastic body 38 is attached between the two strings 17 on the power generation means 20 side of the string support means 19. The elastic body 38 is stretched around the two strings 17. An elastic body 40 different from the elastic body 38 is attached to the column 14. A string support means 21 is attached to the elastic body 40. For this reason, each string 17 connected to each power generation means 20 is attached to the elastic body 40 via the string support means 19, 21.

  The elastic body 38 generates a restoring force against the movement (movement) of the string 16 in the arrow Y direction in FIG. The elastic body 40 generates a restoring force against the movement (movement) of the string 16 in the arrow X direction in FIG.

  In such a structure, by providing the elastic body 40, the movement in the direction in which both the strings 17 are pulled together, that is, the wind direction of the flag, in other words, the movement (movement) of the string 16 in the direction of the arrow X in FIG. Restoring force acts in a counteracting manner. Further, by providing the elastic body 38, the movement in the direction in which one of the strings 17 is pulled, that is, the direction orthogonal thereto, in other words, the movement against the movement (movement) of the string 16 in the direction of the arrow Y in FIG. The restoring force acts on. Accordingly, by individually adjusting the traction force of each elastic body 38, 40, the restoring force in each direction can also be adjusted individually.

  When an electromagnetic induction generator is used as the power generation means 20, a rotary type may be used, but vibrations caused by flapping of the flag 12 (movement in the direction of arrow X in FIG. 1 and movement in the direction of arrow Y in FIG. 1) ) Is transmitted as a reciprocating motion of the string, and can be used as it is without being converted into a rotational motion if it is a linear type.

  Here, an embodiment of the linear generator will be described.

  Assuming that the minimum amplitude of the string considered to be caused by flapping of the flag 12 is w, the maximum moving distance associated with the combined movement of the string is W, d and D are d ≦ (w ÷ 2), and D ≧ W. It is good to decide. This is because, for example, if d is large, even if the string reciprocates, it is possible that almost no power generation output can be obtained depending on the positional relationship between the coil and the magnet.

  As shown in FIG. 5, as the linear generator 42 which is one aspect of the power generation means 20, first, the outer surface on the same circumference has the same pole, and the pole is inverted every pitch d. A cylindrical or cylindrical magnet body 44 is manufactured.

  In this manufacturing method, a curved sintered magnet that is magnetized in the radial direction (to prevent a short circuit between adjacent magnetic poles on the outer surface side) and slightly smaller in width than d is bonded to the side surface of a cylindrical or cylindrical yoke. There is a method of winding a rubber magnet, which is magnetized in a striped manner with a pitch of d, on a cylindrical or cylindrical object.

  On the other hand, a coil 46 having a length shorter by D than the magnet body 44 and an inner diameter slightly larger than the outer diameter of the magnet body 44 and having the winding direction reversed at every pitch of d is made. The coil 46 is attached to the inner surface of the cylindrical yoke 48 having an inner diameter equal to the outer diameter of the coil 46.

  The distance between the inner surface of the yoke 48 and the outer surface of the magnet body 44 is preferably smaller than both the width of each magnetic pole of the magnet body 44 and the interval between adjacent magnetic poles.

  It is desirable to reduce the frictional resistance by covering the inner surface of the coil 46 and the outer surface of the magnet body 44 with a fluororesin tape.

  The difference between the inner diameter of the coil 46 and the outer diameter of the magnet body 44 is preferably small. However, it is preferable that the difference between the inner diameter of the coil body 44 and the outer diameter of the magnet body 44 should be such that they can reciprocate with a small resistance.

  It is desirable to reduce the iron loss by making a slit in the longitudinal direction of the yoke 48 or using a dust core. After that, the yoke 48 is fixed to the column 14 and the magnet body 44 is inserted into the coil 47, and then the string 16 is attached and reciprocated to generate an electromotive force in the coil 46.

  Contrary to the above, the magnet body 44 is made shorter than the coil 46 by D, or the relationship between the coil 46 and the magnet body 44 is changed so that the magnet body 44 side is fixed and the coil 46 reciprocates. It may be.

  Here, the cylindrical shape of the magnet body 44, the coil 46, and the yoke 48 has been described. However, the shape is not limited to this, and the shape may be a prismatic shape or a flat shape. In the case of flattening, a configuration may be adopted in which no magnet is disposed on the short side surface of the magnet body, and for example, a non-magnetized surface of flat-plate sintered magnets that are magnetized on one side and multiple poles can be used. . Furthermore, it can be bundled and integrated. Such a linear generator has an advantage that it can be formed in an elongated shape and is more suitable to be attached to a support column than a rotary generator.

  According to the power generation device 10 of the present embodiment, when the fluttering of the flag 12 is used for power generation, the mechanism necessary for power generation can be integrated with the column 14. Thereby, it can be set as the small and simple electric power generating apparatus 10, and a manufacturing cost is suppressed by extension. Moreover, it is excellent in the portability of the electric power generating apparatus 10, and installation does not take time. Furthermore, it is suitable for the installation of the power generation apparatus 10 in a place where the harmful effects of windmills such as urban areas, residential areas, roadsides, and wild bird landings are likely to be manifested, and can be expected to contribute to the spread of wind power generation.

  Hereinafter, each modification included in the present invention will be described.

  FIG. 7 shows a first modification. In the first modification, the string 16 attached to the flag 12 can be wound around the take-up reel 50. The shaft 52 of the take-up reel 50 rotates when the string 16 is taken up by the take-up reel 50 or sent out from the take-up reel 50. A rotary generator as the power generation means 20 is attached to the shaft 52 of the take-up reel 50. The rotation generator generates power by the rotation of the shaft 52 of the take-up reel 50. In FIG. 7, the rotary generators are separated along a direction orthogonal to the plane of the flag 12.

  FIG. 8 shows a second modification. In the second modification, the string 16 attached to the flag 12 is attached to a linear generator as the power generation means 20 via a plurality of rings 54 (corresponding to string support means). In FIG. 8, the linear generators are not separated along a direction orthogonal to the plane of the flag 12.

  FIG. 9 shows a third modification. About each said structure contained in the modification 3, since it is as above-mentioned, description is abbreviate | omitted suitably.

  In the third modification, as shown in FIG. 9, as an example of the support 14, a predetermined distance is provided in a direction orthogonal to the face of the flag 12 from one side of the support 12 of the flag 12 with the string 16 fully extended. It is comprised by a pair of support | pillar members 14A1 and 14A2 which are located apart. The pair of support members 14A1 and 14A2 are separated from the surface of the flag 12 by a predetermined distance. The pair of support members 14A1 and 14A2 are connected by one or a plurality of connecting members 14B.

  Here, each support | pillar member 14A1, 14A2 is comprised, for example by the cylinder shape, and is equipped with the cavity part (illustration omitted) inside. And the electric power generation means 20 and the string pulling means 22 are accommodated in the hollow part of each support | pillar member 14A1, 14A2. Moreover, in the structure provided with each string support means 18, each string support means 18 is accommodated inside each column member 14A1, 14A2, or is provided at the end of each column member 14A1, 14A2.

  Specifically, in one strut member 14A1, the power generation means 20 and the string pulling means connected to one string 16A1 of the pair of strings 16 that are separated from the upper end of the flag 12. 22 and the power generation means 20 and the string pulling means 22 connected to one string 16B1 of the pair of strings 16 that are spaced apart from the lower end of the flag 12 are accommodated.

  Inside the other strut member 14A2, the power generation means 20 and the string pulling means 22 connected to the other string 16A2 of the pair of strings 16 that are separated from the upper end of the flag 12, and the flag The power generation means 20 and the string pulling means 22 connected to the other string 16B2 of the pair of strings 16 that are spaced apart from the lower end of 12 are accommodated.

  In addition, the structure to which the above-mentioned rotation means 24 is connected may be sufficient as each support | pillar member 14A1, 14A2.

  Further, in the configuration in which the take-up reel 50 is provided as in Modification 1, it is preferable that the take-up reel 50 is provided in the hollow portion or the end portion of the column members 14A1 and 14A2.

  Further, in the configuration in which the ring 54 is provided as in the second modification, it is preferable that the ring 54 is provided in the hollow portion or the end portion of the column members 14A1 and 14A2.

(Propose technical problems)
For example, when the strut members are not separated or separated (for example, see FIG. 1), the volume of one strut member is larger than the volume of the strut members that are separated or separated. . For this reason, a support | pillar member becomes a big wall, it becomes easy for a wind to collide with a support | pillar member, and it becomes difficult for a flag to be exposed to a strong wind. This results in a decrease in power generation efficiency of the power generation apparatus.

  According to the modification 3, since it is comprised by a pair of support | pillar members 14A1 and 14A2 mutually spaced apart, it becomes possible for a wind to pass through between support | pillar members 14A1 and 14A2. Moreover, since the volume of one support | pillar member 14A1, 14A2 can be made relatively small, support | pillar member 14A1, 14A2 does not become a big wall. As a result, the flag 12 can be exposed to a stronger wind, so that the flag 12 can strengthen the fluttering. As a result, the power generation efficiency of the power generation apparatus 10 can be improved.

  Moreover, since each support | pillar member 14A1, 14A2 is provided, compared with the structure in which each support | pillar member is not provided, the rigidity of power generator 10 itself can be improved. In particular, since the power generation means 20 and the string pulling means 22 are accommodated inside the column members 14A1, 14A2, the influence of strong wind on the power generation means 20 and the string pulling means 22 can be reduced, and the flag 12 is exposed to the strong wind. Even in this case, the power generation means 20 and the string pulling means 22 can be prevented from being damaged. As a result, it becomes possible to expose the flag 12 to a strong wind, preventing damage to each constituent member and the like, and further improving the power generation efficiency of the power generation apparatus 10.

10 Power generator 12 Flag (planar body)
14 support 14A1 support member (support)
14A2 Prop member (post)
16 String (string member, transmission part)
16A1 string (string-like member, transmission part)
16A2 string (string-like member, transmission part)
16B1 string (string-like member, transmission part)
16B2 string (string-like member, transmission part)
18 String support means (support member)
20 Power generation means (energy conversion part)
22 String traction means (traction section)
24 Rotating means

Claims (6)

A planar body that vibrates by the flow of fluid;
An energy converter that converts vibration energy associated with vibration of the planar body into electrical energy;
A transmission unit coupled to the planar body and transmitting vibration energy generated in the planar body to the energy conversion unit;
A towing unit capable of towing the transmission unit;
A column that can be fixed to a building or the ground,
A power generation device having
The transmission part is a string-like member,
One end of a plurality of the string-like members is attached to one part on one side of the flat body on the column side, and the other ends of the plurality of the string-like members are attached to the energy conversion unit and the pulling unit. And
The plane body is provided so that it can flutter freely without having a natural period by the string-like member,
Each string-like member gradually moves away from the plane body in a direction perpendicular to the plane of the plane body from one end of each string-like member toward the other end of each string-like member. ,
The strut is composed of a pair of strut members that are separated from each other by a predetermined distance in a direction orthogonal to the plane of the planar body and that are separated from the plane of the planar body by a predetermined distance. Power generator. The energy conversion unit connected to the other end portion of one of the string-like members spaced apart from each other and the traction are disposed inside one of the pillar members constituting the pair of column members. Are housed,
Inside the other strut member constituting the pair of strut members, the energy conversion unit connected to the other end portion of the other strut member among the strut members spaced apart from each other and the traction The power generator according to claim 1, wherein the power generator is housed.   The vibration generated in the planar body is converted into a reciprocating motion along the length direction of the string-like member located between the energy converting section and the planar body, and transmitted to the energy converting section. The power generation device according to claim 1 or 2.   The traction unit is configured to move either the string-like member accompanying vibration along the plane direction of the planar body or to move the string-like member accompanying vibration along a direction orthogonal to the plane of the plane body. The power generator according to any one of claims 1 to 3, wherein a restoring force is applied to the power generator. The support member includes a support member for supporting the transmission unit,
5. The power generation device according to claim 1, wherein the other end portions of the plurality of string-like members are attached to the energy conversion unit and the traction unit via the support member. .   The power generation apparatus according to claim 1, wherein the support member is attached to a rotating unit so as to be rotatable around a predetermined axis.