JP2002281773A - Floating type photovoltaic power generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide floating photovoltaic power generator that can achieve high-output generation by selecting an unused place that does not obstruct traffic and buildings in rivers, seas, lakes, or the like for installing the photovoltaic power generator, and at the same time can be stably installed. SOLUTION: The floating type photovoltaic power generator has a raft section that floats on a water surface, and at least one photovoltaic power generation panel that is provided and supported at a position that is higher than the water surface at the raft section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating photovoltaic power generation device that can be floated on the surface of a river or lake.

[0002]

2. Description of the Related Art Conventionally, a photovoltaic power generator is installed on the rooftop or roof of a building, or mounted on the ceiling of a car or ship to supply power from the photovoltaic power generator to the interior of the building. Electric power is supplied to driving sources such as cars.

[0003]

By the way, a photovoltaic power generator has a panel structure having a light receiving surface for receiving sunlight in order to receive sunlight and convert it into electricity. further,
In order to obtain high output power, a photovoltaic power generation device needs to have a light receiving area as large as possible, and when a photovoltaic power generation device is installed in a small land area, desired high output power cannot be obtained. Was.

The present invention focuses on unused places that do not interfere with traffic and buildings such as rivers, seas and lakes, and installs a photovoltaic power generation device on the water surface to enable high-power generation. It is another object of the present invention to provide a floating solar power generation device that can be installed in a stable state.

[0005]

Means for Solving the Problems In order to achieve the above object, the invention of a floating solar power generation device according to claim 1 is
A configuration was provided in which a raft portion floating on the water surface and at least one photovoltaic power generation panel supported by the raft portion at a position higher than the water surface were provided.

According to a second aspect of the present invention, there is provided the floating solar power generation device according to the first aspect, wherein the raft portion is formed in a frame shape communicating vertically, and the solar power generation panel is formed as a main body. And a panel supporting portion for supporting a gap therebetween.

According to a third aspect of the present invention, in the floating photovoltaic power generator according to the second aspect, the main body includes a wave eliminating means for eliminating a wave that is going to enter the inside of the frame from the lower surface side of the main body. The configuration was provided.

According to a fourth aspect of the present invention, in the floating solar power generation device according to the first aspect, the raft portion supports the main body formed in a box shape opening downward and the solar power generation panel. An air-tight filling portion or a foamed resin material filling portion is formed at the upper portion of the main body, and an air escape hole is formed below the air-tight filling portion or the foamed resin material filling portion on the side wall of the main body. It was configured to be installed.

According to a fifth aspect of the present invention, in the floating photovoltaic power generator according to any one of the first to fourth aspects, the main body and the panel supporting portion have a specific gravity of 0.8 g / cm ³ or less. Made of reinforced foamed thermosetting resin.

According to a sixth aspect of the present invention, in the floating solar power generation device according to the first to fifth aspects, a fender is attached around the main body.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A floating solar power generation device according to the present invention will be described with reference to the drawings. (First Embodiment) FIG. 1 is an overall configuration diagram of a floating type solar power generation device according to a first embodiment of the present invention, which is a square planar photovoltaic power generation panel having a predetermined power generation capacity. 1
And a raft 21 that floats on the water surface while holding the solar panel 1 higher than the water surface. First
In the embodiment, the solar power generation panel 1 is
Are supported.

Further, the raft portion 21 is fixed to the main body 31 formed in a frame shape which is vertically communicated with the main body 31, and a gap is formed between the solar power generation panel 1 and the main body 31. The main body 31 and the panel support 41 have a specific gravity of 0.8 g.
/ Cm ³ less and is made of a plate member 61 formed of a long fiber-reinforced foam thermosetting resin. As the long fiber reinforced foamed thermosetting resin, a hard urethane foam resin and a continuous long fiber for reinforcement are used.

It is preferable that the resin molded product forming the main body 31 and the panel support portion 41 has a structure in which a long fiber reinforced foamed thermosetting resin is covered with a non-foamed long fiber reinforced curable resin layer. By forming the skin layer with the non-foamed long fiber reinforced curable resin as described above, it is possible to reliably prevent water from entering the members of the raft portion 21, so that a constant buoyancy can always be maintained.

The main body 31 is formed of a plate member in a rectangular frame, and the four side walls 51 have a height sufficient to allow the upper part to rise above the water surface with the photovoltaic panel 1 mounted thereon, for example. It has a height of around 30 cm.

The panel supporting portion 41 is formed of a plurality of plate members 61, and opposes the side walls 51 of the main body 31.
In a state where the flat portion of the plate member 61 is orthogonal to the water surface, both ends of the plate member 61 are respectively
It is fixed to the inner surface using an adhesive or the like.

Further, in order to support the panel surface of the photovoltaic power generation panel 1 in a state parallel to the water surface, the plate member 61 of the panel support portion 41 is, as shown in FIG.
Is fixed in such a manner that a part of the upper part of the panel projects from the upper surface of the main body 31 at the same height, and the solar panel 1 is supported on the upper end of the plate member 61 protruding from the upper surface of the main body 31. ing. Therefore, when the solar panel 1 is supported by the panel support 41, a gap is formed between the lower surface of the solar panel 1 and the upper surface of the main body 31.

The plate member 61 of the panel supporting portion 41 is
A total of nine solar panels are fixed to one solar panel, and one solar panel 1 is supported by three plate members 61.

Each of the plate members 61 of the panel support portion 41 has a recess 60 for fitting and fixing the solar panel 1, and the solar panel 1 is fitted into the recess 60. By fixing the photovoltaic power generation panel 1 to the panel support portion 41 by using an adhesive or the like, it is possible to easily prevent the positional shift after fixing the photovoltaic panel 1 to the panel support portion 41.

A fender 50 may be attached to the periphery of the side wall 51 of the main body 31. By attaching the fender 50 to the main body 31, the fender 50 is used for maintenance of the floating photovoltaic power generator. Even if the hull of the hull collides with the main body 31, damage to the main body 31 can be prevented.

As described above, according to the first embodiment,
Because the raft unit 21 that floats the floating solar power generation device on the water surface and the three solar power generation panels 1 that are supported by the raft portion 21 so as to be higher than the water surface are provided,
High-output power can be generated simply by installing a solar power generation device in an unused place that does not interfere with traffic or buildings such as rivers, seas, lakes, etc. I can do it.

When the floating photovoltaic power generator of the present invention is provided on the water surface of a river, electric power can be supplied immediately as a power source for a river purification system.

Further, in the first embodiment, the raft 21
Is provided with a main body 31 formed in a frame shape communicating vertically and a panel supporting portion 41 for supporting the photovoltaic power generation panel 1 so that a gap is formed between the main body 31 and the main body 31. Even if a large wave occurs, water can escape to the gap between the solar panel 1 and the main body 31 and the frame of the main body 31, so that the force of the wave applied to the raft 21 and the solar panel 1 Can be reduced, and damage to the solar power generation device can be prevented.

Further, since the plate member 61 forming the panel support portion 41 is fixed to the side walls 51 of the main body 31 which are opposed to each other, the main body 31 is reinforced by the panel support portion 41. (Second Embodiment) FIG. 2 is an overall configuration diagram of a floating type solar power generation device according to a second embodiment of the present invention, in which a panel surface of a solar power generation panel 1 is inclined. Body 3
2 and the structure for supporting the photovoltaic power generation panel 1 on the panel support portion 42 is different from the first embodiment.

The second embodiment also has a rectangular planar photovoltaic power generation panel 1 having a predetermined power generation capacity, and a raft 22 for floating the photovoltaic power generation panel 1 on the water surface while holding the panel at a position higher than the water surface. The solar power generation panel 1 includes:
Three pieces are supported by the raft 22.

Further, the raft portion 22 is fixed in the main body 32 and a main body 32 formed in a frame shape communicating vertically, and a gap is formed between the main body 32 and the solar power generation panel 1. And a panel supporting section 42 for supporting the panel. The materials of the main body 32 and the panel supporting portion 42 are the same as those of the first embodiment, and therefore the description is omitted.

The main body 32 is formed of a plate member in a rectangular frame, and the four side walls 52 have a height sufficient to allow the upper part to be raised above the water surface with the photovoltaic panel 1 mounted thereon, for example. It has a height of around 30 cm.

The panel supporting portion 42 is formed of a plurality of plate members 62, and the flat portion of the plate member 62 is orthogonal to the water surface so as to span the opposed long side walls 52 of the main body 32. In this state, both ends of the plate member 62 are fixed to the inner surfaces of the respective side walls 52 using an adhesive or the like.

As in the first embodiment, a total of nine plate members 62 of the panel support portion 42 are fixed to the main body 32.
One plate member 62 supports one solar panel 1.

Further, unlike the first embodiment, as shown in FIG. 2, the panel supporting portion 42 fixes the photovoltaic panel 1 to the main body 32 with its panel surface inclined with respect to the water surface. The positions of the upper ends of the three plate members 62 that support the one photovoltaic power generation panel 1 are fixed so as to be shifted in the vertical direction.

Specifically, the plate member 6 of the panel support portion 42
2, as shown in FIG. 2, when being fixed to the main body 32, the upper part is fixed so that the length of the upper part protruding from the upper surface of the main body 32 increases in order of every three sheets. The solar panel 1 is mounted on the upper end of the plate member 62 protruding from the
I try to support.

In supporting the photovoltaic panel 1 on the upper end of the plate member 62, as shown in FIGS. 2 and 3, the photovoltaic panel 1 is fixed by bolts using fixing brackets 70. A plurality 70 is provided at predetermined intervals. The reason why the fixing bracket 70 is intermittently attached in this way is to prevent water from collecting between the fixing bracket 70 and the panel surface when a wave is applied on the solar panel 1. is there.

Also in the second embodiment, when the solar panel 1 is supported by the panel support portion 42, a gap is formed between the lower surface of the solar panel 1 and the upper surface of the main body 32. You.

Although not shown, a fender may be attached around the side wall 52 of the main body 32 also in the second embodiment.

As described above, also in the second embodiment, high-output power generation can be achieved simply by installing a solar power generation device in an unused place that does not interfere with traffic and buildings such as rivers, seas, and lakes. While it is possible to perform power generation using sunlight, it is possible to generate power that is friendly to the global environment.

Further, in the second embodiment, even if a large wave occurs, water escapes into the gap between the photovoltaic power generation panel 1 and the main body 32 and into the frame of the main body 32, so that the Since the panel surface of the photovoltaic power generation panel 1 is inclined with respect to the water surface while reducing the force of the waves applied to the power generation panel 1 and preventing damage to the photovoltaic power generation device, the water applied to the panel surface is reliably dropped. Power generation efficiency can be improved.

Further, since the plate member 62 forming the panel support portion 42 is fixed to the side walls 52 of the main body 32 which are opposed to each other, the main body 32 is reinforced by the panel support portion 42. (Third Embodiment) FIG. 4 is an overall configuration diagram of a floating solar power generation device according to a third embodiment of the present invention, in which a panel surface of a solar power generation panel 1 is inclined. Body 3
3 is the same as that of the second embodiment, and the structure of the panel support portion 43 that supports the photovoltaic panel 1 is different from the first embodiment and the second embodiment.

Further, in the third embodiment, the main body 33 has
The third embodiment is different from the first and second embodiments in that a wave canceling unit 81 for canceling a wave that is going to enter the inside of the frame from the lower surface side of the main body 33 is provided.

The third embodiment also has a square planar photovoltaic power generation panel 1 having a predetermined power generation capacity, and a raft 23 for floating the photovoltaic power generation panel 1 on the water surface while holding the photovoltaic power generation panel 1 at a position higher than the water surface. The solar power generation panel 1 includes:
Three are supported by the raft 23.

Further, the raft portion 23 is fixed in the main body 33 and a frame-shaped main body 33 vertically communicated with the main body 33, and a gap is formed between the photovoltaic panel 1 and the main body 33. And a panel supporting portion 43 for supporting the panel. The materials of the main body 33 and the panel support 43 are the same as those of the first embodiment, and the description is omitted.

The main body 33 is formed of a plate member into a rectangular frame, and the four side walls 53 have a height sufficient to allow the upper part to be protruded from the water surface with the photovoltaic panel 1 mounted thereon, for example. It has a height of around 30 cm.

The panel supporting portion 43 is formed by a plurality of first plate members 63a and second plate members 63b.
As shown in FIG.
Both ends of the three first plate members 63a are fixed to the inner surfaces of the long side walls 53 using an adhesive or the like so that the plane portions are orthogonal to the water surface, so that the plane portions are orthogonal to the water surface. Both ends of the second plate member 63b are inclined between the first plate member 63a fixed to the side wall 53 and the short side wall 53 and between the first plate members 63a with respect to the water surface. It is fixed.

The panel supporting portion 43 includes one photovoltaic power generation panel 1 and one first plate member 63 a and three second plate members 6.
3b.

As shown in FIG. 4, the panel support portion 43 fixes the photovoltaic power generation panel 1 to the main body 33 with the panel surface inclined with respect to the water surface, as in the second embodiment. The upper end of the plate member 63a is fixed so as to protrude from the upper surface of the main body 33, the one end of the second plate member 63b is fixed to the upper part of the first plate member 63a, and the other end is fixed to the main body 3a.
3 is fixed to the upper portion of the side wall 53 or the lower portion of the first plate member 63a, and the second plate member 63b is tilted with respect to the water surface to form the second plate member 63b.
The upper surface of the plate member 63b supports the solar power generation panel 1.

In supporting the photovoltaic power generation panel 1 on the panel support portion 43, as shown in FIG.
Are provided at predetermined intervals as in the second embodiment. The reason why the fixing bracket 70 is intermittently attached in this way is to prevent water from collecting between the fixing bracket 70 and the panel surface when a wave is applied on the solar panel 1. is there.

Also in the third embodiment, when the solar panel 1 is supported by the panel support 43, a gap is formed between the lower surface of the solar panel 1 and the upper surface of the main body 33. .

Although not shown, a fender may be attached around the side wall 53 of the main body 33 also in the third embodiment.

Further, the wave canceling means 8 in the third embodiment
1 is a side wall 53 on the short side of the main body 33 on the lower surface of the main body 33.
And a plurality of wave canceling plates 91 are fixed at predetermined intervals so as to extend in the same direction as the above. The wave canceling plate 91 is also formed of the same material as the main body 33 and the panel support 43.

By this wave-absorbing plate 91, waves that are going to enter the inside of the frame from the lower surface side of the main body 33 can be eliminated, and the water whose wave power has been weakened due to the wave-elimination can be eliminated. 9
1 to the main body 33.
The impact on the photovoltaic panel 1 due to the launch of a wave from below into the frame can be reduced as much as possible.

Also in the third embodiment, high-power power generation can be performed by merely installing a solar power generation device in an unused place that does not interfere with traffic or buildings such as rivers, seas, and lakes. Since solar power is generated, it is possible to generate power that is friendly to the global environment.

Also, in the third embodiment, as in the second embodiment, even if a large wave occurs, water is allowed to escape into the gap between the photovoltaic panel 1 and the main body 33 and into the frame of the main body 33. Since the panel surface of the photovoltaic power generation panel 1 is inclined with respect to the water surface while reducing the force of the waves applied to the raft portion 23 and the photovoltaic power generation panel 1 and preventing damage to the photovoltaic power generation device, I can drop the water that has fallen,
Power generation efficiency can be improved. (Fourth Embodiment) FIG. 5 is an overall configuration diagram of a floating photovoltaic power generator according to a fourth embodiment of the present invention, in which the height dimension of the side wall 54 of the main body 34 in the raft portion 24 is shown. The second embodiment is the same as the first embodiment except that it is larger than that of the first embodiment, and that the position of the upper surface of the side wall 54 is the same as the panel surface of the solar panel 1.

The fourth embodiment also has a square planar photovoltaic power generation panel 1 having a predetermined power generation capacity, and a raft 24 for floating the photovoltaic power generation panel 1 on the water surface while holding the panel at a position higher than the water surface. The solar power generation panel 1 includes:
Three raft parts 24 are supported.

Further, the raft portion 24 is fixed inside the main body 34 formed in a frame shape which is vertically communicated, and a gap is formed between the solar power generation panel 1 and the main body 34. And a panel support portion 44 for supporting the panel. The materials of the main body 34 and the panel support portion 44 are the same as those of the first embodiment, and the description is omitted.

The main body 34 is formed of a plate member in a rectangular frame, and the four side walls 54 have a height sufficient to allow the upper part to rise above the water surface with the solar power generation panel 1 mounted. The side wall 54 has a height of, for example, about 40 cm so that the position of the upper surface of the side wall 54 is the same as the panel surface of the photovoltaic power generation panel 1.

The panel supporting portion 44 is formed of a plurality of plate members 64 and opposes the side walls 54 of the main body 34.
In such a state that the flat portion of the plate member 64 is perpendicular to the water surface, both ends of the plate member 64 are
It is fixed to the inner surface using an adhesive or the like.

Further, in order to support the panel surface of the photovoltaic power generation panel 1 in a state where the panel surface is parallel to the water surface, the plate member 64 of the panel support portion 44 is, as shown in FIG.
Is fixed below the upper surface of the main body 34 by the thickness of the solar panel 1 so that the upper end of the plate member 64 supports the solar panel 1.
Therefore, when the solar panel 1 is supported by the panel support portion 44, the panel surface of the solar panel 1 and the upper surface of the main body 34 are at the same height.

Further, since the photovoltaic panel 1 is formed so that the photovoltaic panel 1 is positioned more inward than the frame inner face of the main body 34, the gap between the photovoltaic panel 1 and the inner face of the side wall 54 of the main body 34 is formed. Is formed with a gap.

The plate member 64 of the panel support portion 44 is
A total of nine panels 4 are fixed to one, and one panel 1 is supported by three plate members 64.

Further, although not shown, it is preferable to form a concave portion for fitting and fixing the photovoltaic power generation panel 1 in each plate member 64 of the panel support portion 44. By fitting the photovoltaic power generation panel 1 into the recess and fixing it with an adhesive or the like, the positioning of the photovoltaic power generation panel 1 to the panel support portion 44 can be easily performed while the panel support portion 4
4 can be reliably prevented from being displaced.

A fender may be attached around the side wall 54 of the main body 34.

As described above, also in the fourth embodiment, high-output power generation can be achieved only by installing a photovoltaic power generator in an unused place that does not interfere with traffic or buildings such as rivers, seas, and lakes. While it is possible to perform power generation using sunlight, it is possible to generate power that is friendly to the global environment.

Further, in the fourth embodiment, even if a large wave occurs, water escapes into the gap between the photovoltaic power generation panel 1 and the main body 34 and the frame of the main body 34, and The force of the wave applied to the power generation panel 1 is reduced, and damage to the solar power generation device can be prevented.

Further, since the upper surface of the side wall 54 of the main body 34 constituting the raft portion 24 is at the same height as the panel surface of the photovoltaic power generation panel 1, the wave is received by the side wall 54 and the wave is generated. Can be prevented.

Further, since the plate members 64 forming the panel support portion 44 are fixed to the side walls 54 of the main body 34 which are opposed to each other, the main body 34 is reinforced by the panel support portion 44. (Fifth Embodiment) FIG. 6 is an overall configuration diagram of a floating type solar power generation device according to a fifth embodiment of the present invention, which is another embodiment of the wave canceling means 81 described in the third embodiment. 1 shows an embodiment. The fifth embodiment is the same as the first embodiment except for the structure of the wave canceling means 85. Therefore, components other than the wave canceling means 85 are denoted by the same reference numerals as those in the first embodiment, and description thereof is omitted.

In the wave canceling means 85 of the fifth embodiment, a wave canceling plate 95 having a size to close an opening on the lower surface side of the main body 31 is fixed to the lower surface of the main body 31.
a is formed. The wave canceling plate 95 of the fifth embodiment is also formed of the same material as the main body 31 and the panel support 41.

By the wave-dissipating plate 95, waves that are going to enter the inside of the frame from the lower surface side of the main body 31 can be eliminated, and the water whose wave power has been weakened by the wave-dissipating plate 95 can be eliminated. 9
5, the impact on the photovoltaic panel 1 due to the launch of a wave from below into the frame of the main body 31 can be reduced as much as possible.

Also in the fifth embodiment, high-power power generation can be performed by merely installing a solar power generation device in an unused place that does not interfere with traffic or buildings such as rivers, seas, and lakes. Since solar power is generated, it is possible to generate power that is friendly to the global environment.

Even if a large wave occurs, water escapes into the gap between the photovoltaic power generation panel 1 and the main body 31 and into the frame of the main body 31, and the wave applied to the raft portion 21 and the photovoltaic power generation panel 1 is reduced. It can reduce the power and prevent damage to the photovoltaic power generator. (Sixth Embodiment) FIG. 7 is an overall configuration diagram of a floating photovoltaic power generator according to a sixth embodiment of the present invention. Wave means 8
1, 85 shows another embodiment. The sixth embodiment is the same as the first embodiment except for the structure of the wave canceling unit 86. Therefore, the components other than the wave canceling unit 86 are indicated by the same reference numerals as those in the first embodiment, and description thereof is omitted.

The wave canceling means 86 in the sixth embodiment fixes a plurality of wave canceling plates 96 on the lower surface of the main body 31 at predetermined intervals so as to extend in the same direction as the side wall 51 on the short side of the main body 31. As shown in FIG. 7, these wave-absorbing plates 96 are fixed to the side wall 51 at different angles of the plane portions of the plate with respect to the water surface. These wave-absorbing plates 96 also include the main body 31 and the panel support 4.
1 is formed of the same material.

The wave-eliminating plate 96 can more efficiently cancel waves entering the frame from the lower surface side of the main body 31 at various angles, and the waves are eliminated and the force of the waves is reduced. Since the weakened water can flow into the main body 31 from between the wave canceling plates 96, it is possible to reduce as much as possible the impact on the photovoltaic panel 1 due to the launch of a wave from below into the frame of the main body 31. it can.

Also, in the sixth embodiment, high-power power generation can be performed by simply installing a solar power generation device in an unused place that does not interfere with traffic or buildings such as rivers, seas, and lakes. Since solar power is generated, it is possible to generate power that is friendly to the global environment.

Even if a large wave occurs, water escapes into the gap between the photovoltaic power generation panel 1 and the main body 31 and into the frame of the main body 31, causing the wave on the raft portion 21 and the photovoltaic power generation panel 1. It can reduce the power and prevent damage to the photovoltaic power generator. (Seventh Embodiment) FIG. 8 is an overall configuration diagram of a floating type solar power generation device according to a seventh embodiment of the present invention, and is a rectangular planar solar power generation panel having a predetermined power generation capacity. 1
And a raft 27 that floats on the water surface while holding the solar power generation panel 1 at a position higher than the water surface. Seventh
In the embodiment, the solar power generation panel 1
Are supported.

The raft portion 27 of the seventh embodiment includes a box-shaped main body 37 that opens downward and a panel support portion 47 that supports the photovoltaic power generation panel 1. The filling portion 71 is formed and the main body 3
An air vent hole 72 is formed below the airtight filling portion 71 in the side wall 57 of the airbag 7. Note that the materials of the main body 37 and the panel support portion 47 are the same as those of the first embodiment, and a description thereof will be omitted.

The main body 37 is a plate member and is formed in a rectangular box shape whose lower surface side is opened downward, and the four side walls 57 have the photovoltaic panel 1 mounted thereon, and Is enough height to make it stand out, for example, 40c
m.

Further, the main body 37 includes a top plate 73 and a side wall 5.
And a partition plate 74 adhered over the entire inner periphery of the four side walls 57 at the intermediate position in the height direction of the front panel 7, and the hermetic air-tight filling portion 7 is sealed by the top plate 73, the partition plate 74 and the side walls 57.
1 are formed. In the airtightly filled portion 71, between the top plate 73 and the partition plate 74, two reinforcing plates 75 for reinforcement are fixed to the top plate 73 and the partition plate 74.

In the seventh embodiment, an air chamber is formed by the air-tight filling portion 71, and the buoyancy of the air-tight filling portion 71 is added to the buoyancy of the foamed resin molded product forming the raft portion 27.

A number of air vent holes 72 are formed all around the side wall 57 of the main body 37 below the position where the partition plate 74 is mounted, and the air vent holes 72 enter the inside of the main body 37 through the air vent holes 72. Air is allowed to escape to the outside.

In the seventh embodiment, the upper surface of the main body 37 is covered with the top plate 73. However, the height of the side wall 57 is sufficient and the strength of the whole main body 37 is improved by providing the partition plate 74. I have.

The panel support portion 47 is formed in a rectangular cylindrical shape, and is fixed to a central portion on the top plate 73 of the main body 37.

The panel supporting portion 47 is provided for the solar panel 1.
Is supported so that its panel surface is inclined with respect to the water surface, the upper opening of the rectangular cylindrical body is formed so as to open obliquely. In forming the panel support portion 47, after forming a rectangular cylindrical body having the same height on the side wall, the side wall is cut obliquely, and the opening formed by the cut portion is attached to the solar power generation panel 1. I have a mouth.

Although not shown, a fender may be attached around the side wall 57 of the main body 37 also in the seventh embodiment.

As described above, also in the seventh embodiment, high-power power generation can be achieved simply by installing a solar power generation device in an unused place that does not interfere with traffic and buildings such as rivers, seas, and lakes. While it is possible to perform power generation using sunlight, it is possible to generate power that is friendly to the global environment.

Further, in the seventh embodiment, since the hermetically sealed air-tightly filled portion 71 is formed in the main body 37, the raft portion 27 is formed.
Since the buoyancy of the air-tightly filled portion 71 can be added to the buoyancy of the foamed resin molded product forming the solar cell, the photovoltaic panel 1 can always be positioned above the water surface.

Further, since a large number of air release holes 72 are formed in the main body 37, the air that has entered the inside of the main body 37 together with the waves through the air release holes 72 can be released to the outside. The raft 27 can be floated in a stable state without overturning. (Eighth Embodiment) FIG. 11 is an overall configuration diagram of a floating solar power generation device according to an eighth embodiment of the present invention,
A foamed resin material filling portion 76 is formed instead of the airtight filling portion 71 in the seventh embodiment.

In the eighth embodiment, the foamed resin material filling portion 76 is used.
Are the same as in the seventh embodiment except for the structure described above, the components other than the foamed resin material filling portion 76 are denoted by the same reference numerals as in the seventh embodiment, and description thereof is omitted.

In the eighth embodiment, the raft portion 27 is provided with a box-shaped main body 37 that opens downward, and a panel support portion 47 that supports the photovoltaic panel 1.
A foamed resin material filling portion 76 is formed in the upper portion of the main body 37, and an air vent hole 72 is formed below the foamed resin material filling portion 76 on the side wall 57 of the main body 37.

Further, the foamed resin material filling portion 76 is formed by fixing a foamed body in contact with the inner surfaces of the four side walls 57 immediately below the top plate 73, for example, a styrofoam molded article formed of a foamable thermoplastic resin. I have. Foam resin material filling section 76
Is formed in a size occupying the upper half of the side wall 57. The foamed resin material filling portion 76 increases the buoyancy of the foamed resin molded product forming the raft portion 27 by the foamed resin material filling portion 76.
Buoyancy is added.

Further, a number of air vent holes 72 are formed all around the side wall 57 of the main body 37 below the mounting position of the foamed resin material filling portion 76, and the air vent holes 72 penetrate the inside of the main body 37 from the air vent holes 72. The air that has entered is released to the outside.

In the eighth embodiment, the upper surface of the main body 37 is
3 is covered, the height of the side wall 57 is sufficiently high, and the foamed resin material filling portion 76 is provided to allow the main body 3 to be covered.
7 has improved overall strength.

As described above, also in the eighth embodiment, high-output power generation can be achieved simply by installing a solar power generation device in an unused place that does not interfere with traffic or buildings such as rivers, seas, and lakes. While it is possible to perform power generation using sunlight, it is possible to generate power that is friendly to the global environment.

Further, in the seventh embodiment, since the foamed resin material filling portion 76 is formed in the main body 37, the buoyancy of the foamed resin material filling portion 76 is added to the buoyancy of the foamed resin molded product forming the raft portion 27. Therefore, the solar panel 1 can always be positioned above the water surface.

Further, since a large number of air release holes 72 are formed in the main body 37, the air that has entered the inside of the main body 37 together with the waves through the air release holes 72 can be released to the outside. The raft 27 can be floated in a stable state without overturning.

It is to be noted that the wave canceling means for canceling a wave which is going to enter the inside of the frame from the lower surface side of the main body is not limited to the above-described embodiment provided with the wave canceling means, but can be applied to other embodiments. Not even.

[0093]

According to the first aspect of the present invention, there is provided a floating type photovoltaic power generation apparatus, wherein the raft portion floating on the water surface is supported by the raft portion so as to be higher than the water surface. And at least one photovoltaic panel, so high-power generation can be achieved simply by installing photovoltaic devices in unused places that do not interfere with traffic or buildings such as rivers, seas, and lakes. While generating electricity, it can generate electricity that is kind to the global environment because it generates electricity using sunlight.

The invention described in claim 2 is the same as that in claim 1.
In the floating type solar power generation device according to the above, the raft portion, a frame-shaped main body communicating vertically, and a panel support portion that supports the photovoltaic power generation panel such that a gap is formed between the main body. With this configuration, even if a large wave occurs, water can escape into the gap between the solar panel and the main unit and into the frame of the main unit. The power of such waves can be reduced, and damage to the photovoltaic power generator can be prevented.

[0095] According to a third aspect of the present invention, in the floating solar power generation device according to the second aspect, the main body includes a wave eliminating means for eliminating a wave that is going to enter the inside of the frame from the lower surface side of the main body. Because it is equipped with, it is possible to cancel the wave that is going to enter the inside of the frame from the bottom side of the main body,
The impact on the photovoltaic panel due to the launch of a wave from below into the frame of the main body can be reduced as much as possible. .

According to a fourth aspect of the present invention, in the floating type solar power generation device according to the first aspect, the raft portion supports the main body formed in a box shape opened downward and the solar power generation panel. An air-tight filling portion or a foamed resin material filling portion is formed at the upper portion of the main body, and an air escape hole is formed below the air-tight filling portion or the foamed resin material filling portion on the side wall of the main body. Since the buoyancy is provided, the buoyancy of the air-tightly filled portion or the foamed resin material filled portion can be added to the buoyancy of the raft portion, so that the photovoltaic power generation panel can always be positioned above the water surface.

Further, since a large number of air release holes are formed in the main body, air that has entered the inside of the main body together with the waves through the air release holes can be released to the outside. And the raft can be floated in a stable state.

According to a fifth aspect of the present invention, there is provided the floating solar power generation device according to any one of the first to fourth aspects, wherein the main body and the panel supporting portion have a specific gravity of 0.8 g / cm ³ or less. Since it is made of a reinforced foamed thermosetting resin, sufficient buoyancy can be obtained while obtaining durability.

According to a sixth aspect of the present invention, in the floating solar power generation device according to any one of the first to fifth aspects, a fender is attached around the main body. Even if the hull of the hull used for maintenance of the photovoltaic device collides with the main body, damage to the main body can be prevented.

[Brief description of the drawings]

FIG. 1 is an overall configuration perspective view showing a first embodiment of a floating solar power generation device of the present invention. .

FIG. 2 is a perspective view showing the overall configuration of a second embodiment of the floating solar power generation device of the present invention.

FIG. 3 is an explanatory view showing a structure for attaching a solar power generation panel to a panel support in a second embodiment.

FIG. 4 is an overall configuration perspective view showing a third embodiment of the floating solar power generation device of the present invention.

FIG. 5 is an overall configuration perspective view showing a fourth embodiment of the floating solar power generation device of the present invention.

FIG. 6 is an overall configuration perspective view showing a fifth embodiment of the floating solar power generation device of the present invention.

FIG. 7 is an overall configuration sectional view showing a sixth embodiment of the floating solar power generation device of the present invention.

FIG. 8 is an overall configuration perspective view showing a seventh embodiment of the floating solar power generation device of the present invention.

FIG. 9 is a sectional view of a seventh embodiment.

FIG. 10 is a sectional view showing an eighth embodiment of the floating solar power generation device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Photovoltaic power generation panel 21-27 Raft part 31-37 Body 41-47 Panel support part 51-57 Side wall 50 Fender 71 Air-tight filling part 72 Air escape hole 76 Foaming resin material filling part 81, 85, 86 Wave elimination means

Claims (6)

[Claims] 1. A floating solar power generation apparatus comprising: a raft portion floating on the water surface; and at least one solar power generation panel supported by the raft portion at a position higher than the water surface. 2. A raft unit comprising: a frame-shaped main body communicating vertically, and a panel supporting portion for supporting the photovoltaic power generation panel such that a gap is formed between the main body and the main body. Item 4. The floating solar power generation device according to Item 1. 3. The floating photovoltaic power generator according to claim 2, wherein the main body is provided with a wave canceling means for canceling a wave that is going to enter the inside of the frame from the lower surface side of the main body. 4. A raft portion comprising a box-shaped main body opened downward and a panel supporting portion for supporting a photovoltaic power generation panel, and an air-tight filling portion or a foamed resin material filling portion on an upper portion of the main body. The floating type solar power generation device according to claim 1, wherein an air release hole is formed below the airtightly filled portion or the foamed resin material filled portion on the side wall of the main body. 5. The main body and the panel supporting portion have a specific gravity of 0.8 g /
cm ³ or less of the floating photovoltaic device according to any one of claims 1 to 4, which is formed by long fiber reinforced foam thermosetting resin. 6. The floating photovoltaic power generator according to claim 1, wherein a fender is attached around the main body.