JPS6034078A - Solar-ray power generating device - Google Patents

Abstract

PURPOSE:To constitute a solar-ray power generating system at low cost while also facilitating manufacture by mounting an electrode for connection to a stacked section between unit tabular blanks to which a substance generating photovoltage is fitted. CONSTITUTION:An amorphous Si solar cell section 2 is formed to the surface of a pantile 1 in a thin-film shape. Connecting pins 3 for connecting the cell are formed to the pantile 1. The cell section 2 is constituted by an electrode 5 electrically connected to the pins 3 and an amorphous Si solar cell 6. A transparent electrode is used as an electrode 7 fitted on the upper surface of the solar cell because solar rays must be transmitted. The electrode 7 is connected electrically to pin holes 4 receiving the pins 3. According to such constitution, a solar-ray power generating system can be utilized for general homes in a large scale without special work and technical knowledge.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a solar power generation device that directly obtains electric power using sunlight.

Conventional Structure and Problems Conventionally, in order to obtain electric power from sunlight, it has been customary to combine a required number of individually manufactured solar cell modules and electrically connect them to each other.

Solar cell modules are manufactured in various sizes, but in order to apply them to a general household power generation system, a framework for combining and interconnecting these modules, and a
Because this framework requires holding tools to be installed outdoors, it has the disadvantage of being labor-intensive and expensive for household applications of solar energy, which will become increasingly important in the future. are doing.

Purpose of the Invention The present invention improves the above-mentioned drawbacks, and also aims to change the conventional way of thinking, and provides a device that enables large-scale use of solar power generation systems in ordinary households without special work or specialized knowledge. The purpose is to provide

Structure of the Invention The solar power generation device of the present invention includes a photovoltaic power generating substance made of an amorphous silicon film mounted on the surface exposed to light of a unit plate-shaped material such as a roof tile covering the outer surface of a building, and A connection electrode is provided in an overlapping portion between the unit plate-shaped materials that occurs when the outer surface of a building is constructed from the unit plate-shaped materials.

DESCRIPTION OF EMBODIMENTS Next, embodiments of the present invention will be described. 〇-For the sake of understanding without losing the general sense, ordinary cross-piece tiles are used as the unit plate-like elements for building materials, and Aself is used as the material that generates photovoltaic force. The details of the configuration using 7-solar cells will be described.

FIG. 1a shows a perspective view of the structure of an embodiment of the present invention. Reference numeral 1 denotes the above-mentioned crosspiece tile, the surface of which is amorphous 81 and smoothed to facilitate the formation of solar cells. 2 is an amorphous 81 solar cell part formed as a thin film by vapor deposition on the surface of the tile 1, and the internal structure is shown in the same figure.

C will be described later. 3 is a connection pin for connecting the iIi battery, and 4 is a pin hole for receiving a connection pin for another solar cell tile. How to form amorphous Si solar cells on the crosspiece tiles and provide electrodes for interconnecting them will be explained below using FIG.

Figures 1 and 1c are cross-sectional views of Figure 1a viewed from directions A and B, respectively. In order to install an amorphous 81 solar cell on the crosspiece tile, the upper surface is smoothed in advance. Amorphous Si solar cell part 2 bus in a,
It is composed of 5 and 6 of c. That is, 5 is an electrode, which is electrically connected to the connecting pin 3. 6I'i, an amorphous Si solar cell, which usually has a p-i-n configuration. 7 is an electrode provided on the top surface of the solar cell, and it is necessary to transmit sunlight through it. SnO2
transparent electrodes are used. The electrode 7 is electrically connected to a pin hole 4 that receives a connecting pin. 6 to 7 can be manufactured using ordinary thin film forming techniques such as vapor deposition, sputtering, and glow discharge. 7 is a film that protects the solar cell and is made of a transparent organic material.0 Above, a detailed explanation was given using an example of using an amorphous 81 solar cell in the photovoltaic power generation part, but other solar cells may also be used. Similar thinking can be applied to Polycrystalline or single-crystal Si is used as a solar cell, or single-crystal G
When using aAs, a required number of these solar cells may be pasted on the tiles.

FIG. 2 shows a perspective view of a tile to which a plurality of these solar cell panels are attached. In FIG. 2, six panels 9 are attached, and these are interconnected and connected to the connecting pins 3 and pin holes 4 with electric wires. The explanation of FIG. 1-2 applies similarly when a tile board is used as a unit plate-like element for building materials.

Next, we will explain how to actually install these solar cell tiles on the roof to obtain electricity. Figure 3a shows a part of a perspective view of a solar cell tile installed on a roof. 01o is a tile crosspiece used for ordinary tile roofs, but in roofs using solar cell tiles, a battery is connected to tile crosspiece 1Q. It also serves as a lead to realize series-parallel connection. The figure shows the connection circuit diagram of the solar cell tile, and the vertical connection in the figure is the first one.
This is an example in which the connecting pins 3 and pin holes 4 shown in Fig. 2 are used to realize the parallel connection in the horizontal direction using the tile beams 1o.

If a lead wire 10 is provided as shown in the figure, the electric layer and current can be set as necessary.

The following effects are produced by using the solar battery-equipped roof tile as described above.

1. Since the roofing pressure and solar cells are integrated, it is cheaper than installing them separately.

2. By configuring the roof with the above-mentioned roofing pressure, the power generation system can be configured at the same time, and the cost can be reduced by 9 times compared to the conventional case where each is prepared separately.

3 The power generation 7 stem according to the present invention can be manufactured using only ordinary roofing techniques, and does not require electrical expertise or electrical construction techniques. Therefore, labor saving and cost reduction will be realized in this aspect as well, and this will also promote the spread of energy saving systems to general households, making a great social contribution.

Note that the present invention can be similarly applied to tiles, etc. that constitute the side walls of buildings, instead of roof tiles.

Effects of the Invention According to the present invention, it is possible to construct a relatively large-scale solar power generation system at low cost and easy to manufacture, which greatly contributes to the industry.

[Brief explanation of the drawing]

Figure 1a is a perspective view of an ordinary tile with an amorphous solar cell attached to it.
Figure 2 is a perspective view of an example of mounting solar cells on roof tiles consisting of individual panels; Figures 3a and b are roof tiles actually installed on roofs using the tiles in Figures 1 and 2. FIG. 1 is a schematic diagram of a solar power generation system using roofing. 1... Crosspiece tile, 2... Amorphous St solar cell part, 3... Connection pin, 4... Pin hole, 5, 7... xi , 7... Amorphous silicon thick tst pond 0 Name of agent Patent attorney Medium
Toshio Oo and 1 other person Flower 1 Figure 3

Claims (4)

[Claims] (1) A substance that generates photovoltaic force is attached to the surface exposed to light of a unit plate-like material that covers the outer surface of a building, and the unit that is generated when the outer surface of the building is constructed from the unit plate-like material. A solar power generation device characterized by having a connection electrode in an overlapping portion between plate-like materials. (2) The photovoltaic power generating device according to claim 1, wherein the photovoltaic power generating substance is composed of polycrystalline silicon, monocrystalline silicon, or amorphous silicon element. (3) The photovoltaic power generating material is mainly GaAs -
The solar power generation device according to claim 1, characterized in that it is made of a group V compound semiconductor. (4) A solar cell according to claim 1, characterized in that the photovoltaic power generating substance is formed of an n-vr group compound semiconductor. Photovoltaic device.