WO2017057018A1

WO2017057018A1 - Float for photovoltaic power generation and photovoltaic power generation unit

Info

Publication number: WO2017057018A1
Application number: PCT/JP2016/077243
Authority: WO
Inventors: 秀三水本; 宏之小出; 康洋成瀬
Original assignee: イビデンエンジニアリング株式会社
Priority date: 2015-09-29
Filing date: 2016-09-15
Publication date: 2017-04-06
Also published as: CN108137137A; JP2017065350A; KR20180059794A; JP6269631B2

Abstract

[Problem] To provide a float for photovoltaic power generation which can be selectively used either for holding a photovoltaic panel or as a scaffold. [Solution] A float 20 can be used either with a front side 20F to which first securing brackets 91 for holding a photovoltaic panel 60 can be attached, or with an underside 20B having thereon anti-slip protrusions 28 for walking, floating above water. Since the one kind of float can be used as a photovoltaic panel holding member with the front side 20F floating above water, or as a scaffold 120 with the underside 20B floating above water, the manufacturing cost of the float is reduced.

Description

Solar power float, solar power unit

The present invention relates to a solar power generation float that floats on water and holds a solar power generation panel, and a solar power generation unit using the float.

There is photovoltaic power generation as clean energy, and photovoltaic panels are installed on the roofs of houses and buildings, and photovoltaic panels are installed on a stand in idle land. In addition to installing on the ground, it is actually practiced to float floats with solar power panels on ponds. Patent Document 1 discloses a floating solar power generation apparatus using a foaming resin material in which a solar power generation panel is installed on an inclined panel support. Further, Patent Document 2 discloses a photovoltaic power generation system in which a plurality of floats on which photovoltaic power generation panels are arranged are arranged and the floats are connected by a guide wheel for maintenance, and a person can walk on the guide wheels. It is disclosed.

JP 2002-281773 A JP 2011-097083 A

In Patent Documents 1 and 2, the dedicated float has a low degree of freedom with respect to the arrangement of the photovoltaic power generation panels. In other words, in the photovoltaic power generation panel placement float, it may not be possible to place the photovoltaic power generation panel placement float near the shore of the pond or the like, and the maintenance float may be placed. There are things you can't do. As a result, the arrangement of the photovoltaic power generation panels is limited, and the amount of power generation is less than expected. Moreover, it is conceivable that the maintenance of the solar power generation panel cannot be performed, causing inconveniences such as a decrease in the amount of power generation.
In addition, producing a dedicated float corresponding to a change in shape near the shore of a pond or the like increases the cost of creating a mold each time.
Furthermore, it is necessary to connect the float for maintenance with other floats, and in the method of mooring with a rope or the like, when walking on the float, the swing becomes large and may not be stable. Although the float stability is improved, the price of the mold for manufacturing the float increases, resulting in an increase in cost and the degree of freedom in connection decreases.

The objective of this invention is providing the solar power generation unit using the float for solar power generation which can select and use for holding | maintenance of a solar power generation panel, and the object for scaffolds, and the said float.

The present invention is a float for photovoltaic power generation that floats on water and holds a photovoltaic power generation panel. And the front surface is provided with a holding portion for holding the photovoltaic power generation panel, the back surface opposite to the front surface is provided with a non-slip projection during walking, and either the front surface or the back surface is floated on the water and used. It features a float that is possible.

The float for photovoltaic power generation of the present invention can be used by floating on the water either the front surface provided with a holding portion for holding a solar power generation panel or the back surface provided with a non-slip projection during walking. With one type of float, the back surface is floated on the water to become a holding member for the photovoltaic power generation panel, and the surface can be floated on the water to be used as a scaffold, so the degree of freedom of use of the float is increased. As a result, the manufacturing cost of the float is reduced, and the photovoltaic power generation unit can be configured at a low cost.

The float for photovoltaic power generation of the present invention can be used by floating on the water either the front surface provided with a holding portion for holding a solar power generation panel or the back surface provided with a non-slip projection during walking. With one type of float, the surface can be floated on the water to serve as a holding member for the photovoltaic panel, and the back can be floated on the water to be used as a scaffold, reducing the manufacturing costs of the float and making the photovoltaic unit inexpensive. can do.

The perspective view of the photovoltaic power generation unit concerning the embodiment of the present invention. The top view of the photovoltaic power generation unit of an embodiment. The top view of the photovoltaic power generation unit of an embodiment. FIG. 4A is a plan view of the surface side of the photovoltaic power generation float of the embodiment, and FIGS. 4B, 4C, and 4D are side views of the float. FIG. 5A is a plan view of the back side of the solar power generation float of the embodiment, and FIGS. 5B, 5C, and 5D are side views of the float. 6 (A) is a plan view of the front side of the walkway board of the embodiment, FIG. 6 (B) is a plan view of the back side of the walkway board of the embodiment, and FIGS. 6 (C), (D), (E) is a side view of a walkway board. FIG. 7A is a plan view of the surface side of the cavity float according to the modified example of the embodiment, and FIG. 7B is a cross-sectional view of the cavity float. The perspective view of the photovoltaic power generation unit which concerns on the modification of embodiment.

FIG. 1 is a perspective view of a photovoltaic power generation unit 10 according to an embodiment of the present invention, FIGS. 2 and 3 are plan views of the photovoltaic power generation unit of the embodiment, and FIG. 2 is provided with a photovoltaic power generation panel. FIG. 3 shows a state before the photovoltaic power panel is attached.

The solar power generation unit 10 includes a float 20 that supports the solar power generation panel 60 in a state where the surface 20F is floated on water, and a walkway plate 40 that fixes the float. The float 20 is connected in a state where the surface of the back surface 20 </ b> B is floated on water to form a scaffold 120. 2 and 3, it is shown that the float 20 is used as a scaffold 120 by connecting three vertically and two horizontally with the surface of the back surface 20B floating on the water. 2 and 3 are examples of the embodiment, and any number of floats and scaffolds may be connected.

In the configuration example shown in FIG. 3, the corridor board 40 is fixed to the side surface of the scaffold 120, and the float 20 with the surface 20 </ b> F floating on the water is fixed to the center portion of the corridor board 40 in a T shape. As shown in FIG. 2, the photovoltaic power generation panel 60 is fixed to the upper surface of the float 20 fixed in a T shape. As shown in FIG. 1, two walkway boards 40 can be connected vertically. The corridor board 40 may be connected vertically and horizontally.

FIG. 4A is a plan view of the surface side of the photovoltaic power generation float of the embodiment, and FIGS. 4B, 4C, and 4D are side views of the float. 4C, the corridor plate 40 is placed on the convex portion 26 of the float shown in FIG. 4B, and the float 20, the corridor plate 40, the first fixing bracket 91 of the photovoltaic power generation panel, and the second fixing bracket 92. FIG. 4D shows a state where the photovoltaic power generation panel 60 is attached, and FIG. 4D is a view as viewed from the direction of arrow D in FIG.

As shown in FIG. 4A, a connecting piece 22vf is formed at one short-side end of the float 20 having a rectangular shape in plan view, and a connecting piece 22vr is formed at the other end. . Connecting

pieces

24 a and 24 b having the same shape are formed on both sides of the float 20 on the long side. The connecting pieces 22vf and 22vr and the connecting

pieces

24a and 24b are formed at the same height hb from the back surface 20B. The connecting pieces 22vf and 22vr and the connecting

pieces

24a and 24b are formed at the same height hf from the surface 20F. Here, the height hb and the height hf are substantially equal. As shown in FIG. 3, a connecting piece 22 vf on one short side end of the float 20 and a connecting piece 22 vf on the other end side of the other float 20 are connected to the through-hole 23 by bolts (not shown). By being fixed, the float 20 is vertically connected. Here, any of the connecting piece 22vf of the float 20 and the connecting piece 22vf of the other float 20 may be on the upper side. Adjustments are made by ups and downs of the float. Similarly, the bolt 20 (not shown) is fixed to the through hole 23 by connecting the long connecting

pieces

24a and 24b on one longitudinal side of the float 20 and the connecting

pieces

24a and 24b on the long side of the other float 20 so that the float 20 Horizontally connected. Here, any of the connecting

pieces

24a and 24b of the float 20 and the connecting

pieces

24a and 24b of the other floats 20 may be on the upper side. Adjustments are made by ups and downs of the float. In the embodiment, since the float is firmly connected vertically and horizontally through the connecting piece, the scaffold does not float up and down and is easy to walk. The through hole 23 can also be used as a hole for attaching the handrail 70 as shown in FIG.

As shown in FIG. 4B, the surface 20F on the side of the connecting piece 22vf is formed at the same height as the connecting piece 22vf, and a pair of convex portions 26 for connecting the corridor board are formed. The front surface 20F on the connection piece 22vr side is formed at the same height hf as the back surface side described above.
As shown in FIG. 4C, on the surface side of the float, a corridor board 40 having a recess 46 is placed so that the convex part 26 can be accommodated, and a pop nut 84 is attached to the corridor board 40. By inserting the bolt 82 into the nut, the second fixing bracket 92 of the photovoltaic power generation panel is attached. The pop nut (holding member) 84 of the float 20 is attached, and the first fixing metal (holding member) 91 of the photovoltaic power generation panel is attached by inserting the bolt 82 into the pop nut, and the first fixing bracket. 91, a second solar panel 92 is attached with a solar panel.

FIG. 5A is a plan view of the back surface side of the solar power generation float of the embodiment, and FIGS. 5B, 5C, and 5D are side views of the float, and FIG. These are the C arrow line views of FIG. 5 (A). FIG. 5D shows a state where the float is connected and used as a scaffold. On the front surface of the back surface 20B, a striped pattern made up of convex portions 28 that serve as anti-slip when used as a scaffold is formed.

The casing outside the float 20 is made of a weather-resistant resin, such as polyethylene (for example, high-density polyethylene), and polypropylene, and the casing is filled with foamed resin. The float manufacturing method uses an extruder die to inject a polyethylene outer shell material into the mold by injecting air to complete a polyethylene casing. Thereafter, after the foam beads are filled in the casing, steam is added, and the float is completed by fusing the foam beads.

In a modification of the embodiment, a hollow float 21 that does not fill the casing with the foamed resin can be used. FIG. 7A is a plan view of a cavity float according to a modification of the embodiment, and FIG. 7B is a cross-sectional view of the cavity float. A part or all of the inside of the casing of the hollow float 21 is made hollow, and by providing the hole 29, water can be put into the inside from the hole and used as a weight. Moreover, by adding water, it becomes a weight and can also prevent wind intrusion.
Although a plurality of holes (three holes) are provided in FIG. 7A, a single hole may be used. For example, as shown in FIG. 2, one or two of the six floats used as the scaffold 120 by connecting three vertically and two horizontally with the back surface 20B floating on the water is hollow in one or two By incorporating the float 21, it is possible to achieve stability of the scaffolding and the photovoltaic power generation unit 10 as well as buoyancy adjustment. In addition, as shown in FIG. 8, a hollow float 21 can be attached to the side of the scaffold 120 to prevent wind from entering.

FIG. 6A is a plan view of the front side of the walkway board 40 of the embodiment, and FIG. 6B is a plan view of the back side of the walkway board. 6C, 6D, and 6E are side views of the float. FIG. 6E illustrates a state in which the second fixing bracket 92 of the photovoltaic power generation panel is attached to the corridor plate illustrated in FIG.

The corridor board 40 has a symmetrical structure from the center line indicated by XX in the drawing. A connecting piece 42v is formed at the end on the short side. A metal fitting mounting hole 50 is formed at one end on the long side. A connecting piece 44c is formed at the end on the long side where the metal fitting mounting hole 50 is formed. A connecting piece 44b and a connecting piece 44a are formed at the end on the opposite long side where the metal fitting mounting hole 50 is formed. The connecting piece 44b is sandwiched between the pair of connecting

pieces

44a and 44a. As shown in FIG. 6 (D), the connecting piece 44b is composed of an upper piece 44bf and a lower piece 44bb, and when the corridor board 40 is connected horizontally as shown in FIG. The connecting piece 44b of the other corridor plate is fixed with a bolt in a state where the connecting piece 44c of the other corridor plate is sandwiched between the upper piece 44bf and the lower piece 44bb of the connecting piece 44b. Here, when the short-side end of the walkway plate is connected to the long-side end of the float 20 with the back surface 20B floating on the water, the short-side connecting piece 42v of the walkway plate and the float 20 The long-side connecting piece 24 b is connected by fixing a bolt (not shown) to the through hole 23. Here, any of the connecting piece 42v of the walkway board and the connecting piece 24b of the float 20 may be on the upper side.

As shown in FIG. 6C, a concave portion 49 for fixing the float 20 whose surface is floated on the water is formed at the center of the back side of the walkway board. As shown in FIG. 6B, the insertion hole 46 is formed in the recess 49. The protrusion 26 of the float 20 shown in FIGS. 4 (A) and 4 (B) is inserted into the insertion hole 46, and the surface is floated on the water with respect to the walkway board 40 as shown in FIG. 20 is fixed in a T-shape.

As shown in FIG. 4C and FIG. 6E, a pop nut 84 is attached to the corridor plate 40, and a bolt 82 is inserted into the pop nut so that the second fixing bracket of the photovoltaic power generation panel can be obtained. 92 is attached. The photovoltaic power generation panel 60 is attached to the second fixing bracket 92 via the plate 86. The plate 86 and the photovoltaic power generation panel 60 are fixed with bolts 90. Similarly, the first fixing fitting 91 and the photovoltaic power generation panel 60 are fixed with bolts 90.

One photovoltaic power generation panel 60 includes one first fixing bracket 91 attached to the surface side of the float 20 and two walkway boards 40 attached to the float 20 in a T shape. It is fixed with the second fixing bracket 92.

The float of the embodiment can be used by floating on the water either the front surface 20F to which the first fixing fitting 91 holding the photovoltaic power generation panel can be attached or the back surface 20B having the anti-slip convex portion 28 during walking. With one type of float, the surface can be floated on the water to serve as a holding member for the photovoltaic panel, and the back can be floated on the water to be used as a scaffold, reducing the manufacturing costs of the float and making the photovoltaic unit inexpensive. can do. Furthermore, by not filling the casing with the foamed resin, the inside of the float can be made hollow, and the hollow float 21 that becomes a heavy stone can be configured, so that the manufacturing cost of the float is lowered and the photovoltaic power generation unit can be configured at a low price. .

In the embodiment, a free-form solar power generation unit can be configured by appropriately combining one standard float and a walkway board, so that it is possible to cope with a complicated lakeside or the like. When transporting for installation work, it is only necessary to carry one standard float, so the transport efficiency is high. Furthermore, even if the float for holding photovoltaic power generation breaks, it can be used as a float for holding a photovoltaic power generation panel by turning the float that was used as a scaffold, so it is necessary to store spare parts on-site. No.

20 float 21 hollow float 20F surface 20B back surface 22vf,

22vr connecting piece

24a, 24b connecting piece 28 convex part 40 corridor board 60 solar power generation panel 91 first fixing bracket 92 second fixing bracket

Claims

A float for photovoltaic power generation that floats on the water and holds the photovoltaic panel,
The surface has a holding part that holds the photovoltaic panel,
The back surface opposite to the front surface is provided with a non-slip convex portion during walking,
A solar power float that can be used by floating either the front surface or the back surface on water.
The float of claim 1,
The surface consists of a resin casing with weather resistance,
A float for photovoltaic power generation in which a foamable resin is filled in the resin casing.
The float of claim 1,
The surface consists of a resin casing with weather resistance,
A float for photovoltaic power generation in which a part or all of the resin casing is hollow.
The float of claim 1,
The float has a rectangular shape;
A float for photovoltaic power generation in which a connecting piece for vertical connection is provided at the end on the short side.
The float of claim 4,
A float for photovoltaic power generation in which a connecting piece for lateral connection is provided at the end on the long side.
The float of claim 5, wherein
With the back surface of the float floating on the water, a convex portion for fitting with a corridor plate for fixing the float in a T shape in the center is provided near one end on the short side.
A photovoltaic power generation unit that generates electricity by holding a photovoltaic panel on the water,
Solar power panels,
The surface is provided with a holding part for holding a photovoltaic power generation panel, and the back surface opposite to the surface is provided with a float having a rectangular shape in plan view provided with a non-slip protrusion during walking, and the front side is floated on the water. The float holding the power generation panel;
The float floats on the water, and a plurality of the floats connected as a scaffold,
A rectangular walkway plate having a rectangular shape in plan view that holds one end on the short side of the float that floats the front side on the water and holds the solar power generation panel in a recess provided in the center on the long side on the back side With.
The photovoltaic power generation unit according to claim 7,
At least one of the end portions on the short side of the corridor plate is connected via a connection piece on the long side of the float that is connected to the plurality of the end plates.
The photovoltaic power generation unit according to claim 8,
As the float, a resin casing is filled with a foamable resin,
The resin casing has a part or all of which is hollow.