JPH09246583A - Photoelectric conversion panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a photoelectric conversion panel whose strength and time-dependent stability are enhanced and which is executed easily by a method wherein a photoelectric conversion layer is formed on the surface of a conductive material layer on a substrate composed of a laminated body which is composed of an electric insulating resin layer and of a conductive layer, an electrode on one side is formed on the conductive material layer on the substrate, an electrode on the other side is formed on the surface side of the photoelectric conversion layer and a support formwork is installed at the outer edge part of the substrate. SOLUTION: In a photoelectric conversion panel 1, a laminated body which is composed of a resin layer 2 and of a conductive layer 3 is used as a substrate. The resin layer 2 and the conductive material layer 3 are stacked by an adhesive or the like. A photoelectric conversion layer 5 is formed on the surface of the conductive material layer 3. An electrode 6 on one side is installed at the conductive material layer 3, and an electrode 8 on the other side is installed at the photoelectric conversion layer 5. As an installation method for the electrode 6, an opening which reaches the conductive layer 3 from the side of the resin layer 2 is formed before the photoelectric conversion layer 5 is formed or after it has been formed, the electrode is installed by a stud welding operation or the like, and an insulating sleeve 7 is installed so as to prevent the electrode from coming into contact with a metal plate 4. A support formwork 9 is installed at the outer edge part, and it supports the metal plate 4 via an insulating sheet 10 so as to be attached and fixed to a base 13.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a photoelectric conversion panel. Specifically, it relates to a so-called solar cell panel that converts sunlight into electricity.

[0002]

2. Description of the Related Art In a solar cell panel, a photoelectric conversion layer made of crystalline silicon or amorphous silicon is provided on the surface of a metal substrate such as stainless steel, and the photoelectric conversion layer is cut or bent to be processed into a desired shape. Also, electrodes are provided on the surface of the photoelectric conversion layer side to form a panel.

[0003]

However, since such a conventional panel has a thin substrate, it has an effect that it can be wound, while it is strong enough to withstand storms when installed as a solar cell panel. Needing a strong base, and the panel itself must be bent to have strength, and a process such as pressing the outer periphery of the panel with a frame material is required, which leaves problems in workability and bending performance. The improvement was desired.

[0004]

DISCLOSURE OF THE INVENTION The present inventors intend to solve the above problems and provide a photoelectric conversion panel (so-called solar cell panel) which is excellent in workability and durability and has a sufficiently large photoelectric conversion area. As a result of repeated intensive studies, it was found that the object can be achieved by forming a photoelectric conversion layer on the surface of a substrate having a special structure and attaching a supporting mold to the outer edge of the substrate, and the present invention completed.

That is, the gist of the present invention is to provide a photoelectric conversion layer on the surface of a conductive material layer of a substrate composed of a laminate of an electrically insulating resin layer and a conductive material layer, and one electrode is used as the conductive material layer of the substrate. The photoelectric conversion panel is characterized in that the other electrode is provided on the front surface side of the photoelectric conversion layer, and the supporting frame is provided on the outer edge of the substrate. An example of the photoelectric conversion panel of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a photoelectric conversion panel of the present invention. FIG. 2 is a partial sectional view of the photoelectric conversion panel of the present invention. FIG. 3 is a partial sectional view of the photoelectric conversion panel of the present invention. In the figure, 1 is a photoelectric conversion panel, 2 is an electrically insulating resin layer, 3 is a conductive material layer, 4 is a metal plate, 5 is a photoelectric conversion layer, 6 is an electrode, 7 is an insulating sleeve, 8 is an electrode, and 9 is a support type. A frame, 10 is an insulating sheet, 11 is a coupling tool, 12 is a sleeve, and 13 is a base.

The photoelectric conversion panel 1 of the present invention uses a laminate of an electrically insulating resin layer 2 and a conductive material layer 3 as a substrate. As the electrically insulating resin layer 2, a generally used synthetic resin such as polyethylene, polypropylene, polyvinyl chloride, nylon, or polycarbonate is used. The thickness of the electrically insulating resin layer is determined in consideration of strength, but is usually about 2 to 10 mm.

In consideration of weather resistance, it is desirable that a weathering agent such as carbon black is mixed in the electrically insulating resin layer 2 in an amount of 0.1 to 10% by weight. The electrically conductive material layer 3 laminated with the electrically insulating resin layer 2 may be a material having electrical conductivity, that is, a metal material, but stainless steel is preferably used from the viewpoint of weather resistance and the like. The thickness of the conductive material layer 3 is preferably about 0.1 to 1 mm in consideration of strength and the like.

The resin layer 2 and the conductive material layer 3 may be laminated by an appropriate method such as an adhesive or heat fusion. On the side of the resin layer 2 opposite to the conductive material layer 3, aluminum,
It is preferable to arrange a metal plate 4 such as stainless steel. The substrate is thus a laminated body of the resin layer 2 and the metal plate, and is a high-strength and lightweight substrate.

A photoelectric conversion layer 5 is formed on the surface of the conductive material layer 3 of the substrate.
Is provided. The photoelectric conversion layer 5 is an amorphous or crystalline photoelectric conversion layer mainly containing silicon, that is, a so-called solar cell layer. It is necessary to provide an electrode on the photoelectric conversion layer 5, but as shown in FIGS. 2 and 3, one electrode (usually one pole) is provided on the conductive material layer 3 of the substrate. As an electrode installation method, as shown in FIG. 2, an opening reaching the conductive material layer 3 from the resin layer 2 side is provided before or after the photoelectric conversion layer is provided on the substrate, and the electrode 6 is formed by stud welding. It is good to install.
In order to prevent contact with the metal plate 4 on the back side, the electrode 6 may be covered with an insulating sleeve 7 made of an insulating material.

The electrode 6 is not limited to the above-mentioned stud welding method, and various structures such as a screw fixing structure and a fitting structure can be used. The stud welding method is preferred because it does not occur. As shown in FIG. 3, the electrode is previously installed on the mold material, the edge of the substrate is cut with a router or the like to expose the conductive material layer 3, and the electrode is contacted, fused, or brazed to this portion. Installation methods are also possible.

In any case, any structure may be used as long as the electrodes can be stably installed. The electrode 8 provided on the other surface of the photoelectric conversion layer may be provided by a method such as welding, brazing, or adhesion with a conductive adhesive. In the panel of the present invention, the mold material 9 is provided on the outer edge portion. The mold member 9 is made of a metal material such as aluminum or stainless steel, or a synthetic resin. The basic structure of the mold material 9 is a portion that supports the back side of the substrate and an edging structure portion that rises along the edge of the substrate and surrounds the edge of the surface of the substrate (the surface of the photoelectric conversion layer).
It has a leg portion for attaching to the base 13.

By using the mold material 9 as described above, the photoelectric conversion panel can be constructed in a flat plate state without bending the substrate, so that no defective portion is caused by bending the panel. When the mold material 9 is attached by using a coupler 11 made of an embedded rivet or the like as shown in the drawing, the photoelectric conversion layer 5 is not adversely affected and no defective portion is generated, so that the entire panel becomes a good photoelectric conversion panel.

This is an effect of forming the substrate with a laminate of the resin layer 2 and the conductive layer 3 (metal plate layer). Moreover, since the resin layer 2 also functions as a heat insulating material, it also serves to increase the photoelectric conversion efficiency. When the form 9 is made of metal, it is preferable to provide the insulating sheet 10 between the form 9 and the substrate. The insulating sheet 10 is rubber,
A sheet of synthetic resin or the like may be used, but an adhesive sheet may be used to double the adhesion between the frame 9 and the substrate. Formwork 9
When the wiring of the electrode 6 is taken from the leg portion of the above, it is convenient to fix it by providing the sleeve 12 made of rubber or the like.

[0014]

INDUSTRIAL APPLICABILITY The photoelectric conversion panel of the present invention is excellent in strength, stability over time, power generation area efficiency and the like, has a structure that is extremely easy to construct, and has great practical effects.

[Brief description of drawings]

FIG. 1 is a perspective view of a photoelectric conversion panel of the present invention.

FIG. 2 is a partial sectional view of a photoelectric conversion panel of the present invention.

FIG. 3 is a partial sectional view of a photoelectric conversion panel of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Photoelectric conversion panel 2 Electrical insulating resin layer 3 Conductive material layer 4 Metal plate 5 Photoelectric conversion layer 6 Electrode 8 Electrode 9 Support form 10 Insulation sheet 11 Binding tool

Claims (1)

[Claims] 1. A photoelectric conversion layer is provided on the surface of a conductive material layer of a substrate composed of a laminate of an electrically insulating resin layer and a conductive material layer, one electrode is provided on the conductive material layer of the substrate, and the other electrode is provided. A photoelectric conversion panel, which is provided on the front surface side of a photoelectric conversion layer and is provided with a supporting frame on an outer edge portion of a substrate.