JP2011109051A - Flexible solar cell panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flexible solar cell panel which can be installed on an arch type cover installed in water/sewage-work facilities or a soundproof wall of a highway without reference to whether the flexible solar cell panel is newly installed or already installed and in a corrosive atmosphere. <P>SOLUTION: In the flexible solar cell panel, a plastic plate 12 for giving rigidity necessary to an amorphous solar cell is bonded to a flexible amorphous solar cell, or to a solar cell where a crystal silicon wafer is laminated with a fluorine-based film, and further a frame 13 of the same material to hold the solar cell is fixed around its surrounding, whereby, the flexible solar cell module 11 having reliability in a long term which is not corroded by corrosive gas, is formed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

Detailed Description of the Invention

The present invention provides a flexible solar panel easily, and installs a flexible solar power generation device on the surface of the cover of the water and sewage treatment facility and the soundproof wall of the expressway. Is intended to renew.

In recent years, solar power generators have been installed in the upper part of the cover of water and sewage treatment facilities to reduce carbon dioxide. In general, the arch shape is widely adopted to ensure the rigidity of the cover, and the flexible solar panel has almost no restrictions on installation regardless of existing or new installation.
In addition, the sound barrier on the highway is a parabola, and can be a target for photovoltaic power generation by installing a flexible solar panel.
The present invention provides an easy-to-use flexible solar cell panel that uses amorphous materials and expands the area of photovoltaic power generation regardless of the corrosive atmosphere.

Most of the photovoltaic power generation devices use crystalline silicon solar cells. Due to their rigidity and weight, there are restrictions on the installation conditions for the cover of the water and sewage treatment facility or the noise barrier of the expressway.
When designing a new cover, it is possible to incorporate it into the shape design. However, the dimensions of the solar cell module are different for each company and lack compatibility. Sound barriers are nearly impossible due to curvature and weight constraints. In addition, it is necessary to protect devices such as connectors against corrosive environments.
The purpose of this project is to provide a flexible solar panel that can be installed regardless of whether it is newly installed, existing, or in a corrosive atmosphere.

The flexible solar cell panel according to the present invention solves the above-described problems and includes the following components.
The flexible solar cell is lined with a plastic flat plate to give it an appropriate rigidity. The backing is bonded or integrally formed with epoxy resin, urethane resin, or the like.
The material of the flat plate made of plastic is acrylic, polycarbonate, glass fiber reinforced plastic, vinyl chloride, etc., but the rigidity per unit width is 100 N-mm ^{2 to} 5000 N-mm by the combination of thickness and bending elastic modulus of each material. By setting it to ² , it becomes a flexible solar cell panel optimum for the application. In addition, by arranging a plastic plate around the frame and providing an output box and cable storage area, it is possible to maintain the quality even in corrosive atmospheres. The fastening reinforcement effect at the time of fixing can be expected. This presser frame can be painted in the same color as the target equipment and has a structure that is excellent in convenience, aesthetics, weather resistance, and durability.
The flexible solar panel is preferably mechanically installed on the target equipment such as bolts and rivets, but can also be installed by adhesion or double-sided tape.
A flexible solar cell is optimally an amorphous silicon type, but a semi-flexible solar cell in which a crystalline silicon wafer is laminated with a fluorine film or the like is on the market and can be used.

Since the flexible solar panel according to the present invention is lightweight and has an appropriate rigidity, installation work is very simple, and there are a wide selection of fastening methods such as bolts, rivet adhesives, double-sided tapes.
Since the radius of curvature can be freely selected, it can be installed on arch-shaped equipment regardless of whether it is newly installed or existing, and the shape restrictions are greatly reduced even in new designs, and there is no corrosive atmosphere.
Flexible solar cell panels can be freely set according to the thickness and material of the plastic flat plate, and have a high degree of design freedom for purpose, required performance, and application.
Since the rigidity of the flexible solar panel can be superimposed on the rigidity of the equipment to be installed, a slight load is generated due to its own weight, but the overall rigidity can be expected to improve.
When a flexible solar panel is installed on existing equipment, it can be renewed by painting the surface of the equipment other than the panel, which can contribute to the reduction of waste such as the cover that needs to be replaced.

The flexible solar cell is attached to a plastic flat plate having a thickness of 1 to 3 mm with an epoxy resin, and the rigidity per unit width is set to 500 to 5000 N-mm ² .
The plastic flat plate is 20 to 300 mm larger than the outside dimensions of the flexible solar cell, and the flexible solar cell is arranged in the center, and a pinch allowance of 5 to 10 mm is provided around the solar cell, and an output box and a cable housing recess are provided. A flexible solar cell panel is constructed by using a plastic plate with a thickness of 2 to 5 mm, whose outer dimensions are the same as the above-mentioned backing plate, as a peripheral frame, and fixed by bonding, screwing, riveting, etc. through a sealing material .

1 Configuration of flexible solar panel 1
Crystal type with a width of 830 mm, a length of 1140 mm, and a thickness of 4 mm, laminated on both sides with a fluorine-based film on a reinforced plastic flat plate (hereinafter abbreviated as FRP plate) having a width of 910 mm and a length of 1220 mm and a thickness of 2 mm Paste the solar cell.
The outer dimensions are the same, the inner dimensions are 810 mm and 1120 mm, and an output box and a plastic frame provided with a recess for a cable are joined together by bonding or screwing. The output box and cable housing are sealed with a sealant to prevent the ingress of corrosive gases.
2 Composition of flexible solar panel 2
An amorphous solar cell having a width of 460 mm, a length of 1730 mm, and a thickness of 1 mm is installed in the center of a box-shaped FRP frame member having a width of 600 mm and a length of 1870 mm, with inner dimensions of 440 mm and 1710 mm, a thickness of 1 mm and a rise of 20 mm. Then, an FRP plate having a thickness of 1 mm provided with an output box and a cable recess on the back surface is joined by integral bonding or screwing. The output box and cable housing are sealed with a sealant to prevent the ingress of corrosive gases.

The standard shape (the 1) of the flexible solar cell panel concerning this invention is shown. The standard shape (the 2) of the flexible solar cell panel concerning this invention is shown. The example which installed the flexible solar cell panel in the cover made from FRP is shown.

Reference numerals in FIG. 1 are 11 ... solar cell module, 12 ... FRP plate, 13 ... FRP frame, 14 ... positive output box 15 ... negative output box, 16 ... cable, 17 ... output box storage, 18 ... cable storage Numerals 21 ... solar cell module, 22 ... FRP frame, 23 ... FRP plate, 24 ... positive output box 25 ... negative output box, 26 ... cable, 27 ... output box storage, 28 ... cable storage 31 ... Solar cell module, 32 ... FRP cover, 33 ... Positive output box, 34 ... Negative output box, 35 ... Positive cable, 36 ... Negative cable

Claims (9)

In a flexible panel in which amorphous solar cells are bonded to a plastic flat plate, a recess is provided on the front side to accommodate the positive and negative output boxes. Solar panel that protects the elements. In a flexible panel in which an amorphous solar cell is bonded to a flat plate made of plastic, a solar cell panel having a continuous guide groove for housing an output cable at the center or both sides is provided on the surface side. 3. A solar cell panel according to claim 1, wherein the box and the cable housing are arranged on the back side. 4. A solar cell panel using a flexible solar cell according to claim 1, 2 and 3, wherein a crystalline silicon wafer is laminated with a fluorine film or the like instead of an amorphous solar cell. 5. The solar cell panel according to claim 1, 2, 3 and 4, wherein a rivet, a screw, an adhesive, a double-sided tape, or a fusing method is used alone or in combination as a method of attaching or fixing. A solar power generation apparatus in which the solar cell panel according to claim 1 is installed on an upper surface of a cover of a water and sewage treatment facility. A solar power generation apparatus in which the solar battery panel according to claim 1 is installed on a soundproof wall of an expressway. 8. The photovoltaic power generation apparatus according to claim 6 or 7, wherein the installation method is a rivet, a screw, a bolt, an adhesive, or a double-sided tape. 8. The energy-saving and resource-saving construction method according to claim 6 or 7, wherein, in the case of existing equipment, the equipment is renewed by repainting parts other than the solar power generation device laying portion.

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