JP2662483B2 - How to install solar cell module - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of installing a solar cell module on a metal plate for roof, which is easily detachable from metal.

[0002]

Recently, is expected to global warming greenhouse of increased CO ₂ occurs, clean energy requirements that do not emit CO ₂ is increasingly.

[0003] Further, the problem of radioactive waste has not been solved in nuclear power generation that does not emit CO _2, and clean energy with higher safety is desired.

[0004] Among the clean energy expected in the future, solar cells are particularly expected from the viewpoint of their cleanliness, safety and ease of handling.

[0005] Among the solar cells, single-crystal silicon and polycrystalline silicon solar cell modules are vulnerable to impact, and therefore have a thick glass plate and an adhesive / filler EVA.
(Ethylene-vinyl acetate copolymer) is used to protect the surface of the solar cell, and furthermore, it is held by a frame of an aluminum agent or the like in order to prevent injuries due to the edge of the glass and breakage of the glass plate.

[0006] The surface of an amorphous silicon solar cell module formed on a glass substrate is protected by a thick glass plate like the crystalline silicon solar cell module.

Conventionally, a solar cell module using such a glass has a thickness of 13 to 15 per square meter.
When it is installed on a roof etc., it is not easy to handle due to its heavy weight.In addition, a heavy mounting base is installed and the solar cell module is fixed with bolts etc. It was necessary to fix firmly using a tool. For this reason, installation time and mounting costs are required, and installation on a roof is dangerous.

On the other hand, among solar cells, a substrate such as a polymer resin substrate or stainless steel may be used as a substrate material. Solar cell modules using these substrates have the advantages of being flexible, resistant to impact, and extremely light in weight per unit area and power generation power. Also, like the crystal module, hold the end face with an aluminum frame and install it on the gantry, or directly open a through hole at the end of the solar cell module,
A method of mechanically fixing with a fixing device such as a bolt was employed. When installing on a gantry, it is necessary to install a heavy gantry and fix the solar cell module using fixing devices such as bolts, which requires installation time and gantry costs, and installation on a roof is dangerous. It was accompanied by.

Further, in the method of forming a through hole and fixing with a fixture, it is necessary to make a hole in a module and a fixing object. For example, when a hole is formed in a metal roof, there is a problem of rain. Was.

Therefore, there has been a strong demand for the development of a solar cell module that does not require a frame and that can be fixed safely and with good workability without damaging the metal roof, the roof of an automobile, or a wall.

[0011]

SUMMARY OF THE INVENTION The main object of the present invention is to provide a thin film-shaped flexible solar cell module which is easy to install, and in particular, solves problems such as peeling by wind when installed on a roof. To provide an installation method.

[0012]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and achieves the above-mentioned objects, and the present invention provides a method for installing a solar cell module on a roof metal plate, comprising the steps of: A battery module includes a flexible conductive substrate, a photoelectric conversion layer using an amorphous silicon semiconductor provided on a surface side of the substrate, a solar cell element including a transparent electrode provided on the photoelectric conversion layer, and the solar cell. The magnet arranged on the back side of the bendable conductive substrate used for the element, and the black resin film arranged on the back side have an integral structure, and the magnet used for the solar cell module is used to form the solar cell module and the roof. The method is characterized in that a solar cell module is fixed to a metal plate for mounting.

Preferably, the magnet is a rare earth magnet, and more preferably, a samarium cobalt magnet.

Preferably, the magnet is in a sheet shape.

It is preferable that the magnet is embedded in a sealing material for sealing the solar cell.

[0016]

Since the solar cell module of the present invention has a magnet on the surface opposite to the photovoltaic layer of the solar cell, it can be safely installed on a metal at an arbitrary place such as a metal roof or a car roof or wall with good workability. It can be removed.

Further, since the solar cell module has flexibility, it is necessary for a crystalline solar cell module having a thick glass plate, a polycrystalline solar cell module, an amorphous silicon solar cell module using glass as a substrate, and the like. This eliminates the need for the metal frame, and also eliminates the need for a mount for installing the solar cell module. Therefore, the weight of the solar cell module is reduced by the amount of the frame and the mount.
Also, since it can be closely adhered to a roof or the like, it can be installed on a metal with a small magnetic force. Moreover, the complicated work of installing the metal frame and the gantry can be eliminated, the workability is improved, and the danger is reduced.

Further, the cost of the frame and the gantry in the total cost of the solar cell module is large, and in some cases, the cost of the frame and the gantry is higher than the cost of the solar cell panel. However, since the flexible solar cell module having a magnet can be directly installed on a metal plate, the cost of the solar cell module can be significantly reduced.

Further, since the solar cell module having the magnet has a bendability, the solar cell module can be sequentially attached to and removed from the metal plate from the end of the solar cell module. Accordingly, it is possible to prevent the surface of the metal plate from being scratched or the operator from being injured due to the magnet having a strong magnetic force sticking or peeling off the metal plate suddenly.

Further, by using a rare earth magnet for the magnet attached to the solar cell module, a strong bonding force with the metal plate can be obtained. In particular, when installed on a metal roof, a joining force that is not defeated by gusts is required, and when a magnet is inserted into a module, the coercive force is 60 to 70% as compared with a case where the module is not sealed with a sealing material. However, a magnet having a strong coercive force is required to reduce the joining force, but a rare earth magnet has a magnetic force necessary for it.

Further, among the rare earth magnets, the use of a samarium-cobalt magnet makes them resistant to rust,
It is possible to provide a solar cell module having a magnet with almost no decrease in magnetic force even at a high temperature.

Further, by using a sheet-like rubber magnet for the magnet attached to the solar cell module, the magnet can be mounted safely without damaging the roof of a car, for example, and can be easily mounted and removed. It is possible to provide a solar cell module that is not damaged.

Further, since the magnet is embedded in the sealing material for sealing the solar cell, the magnet does not damage a metal plate such as a metal roof or a car roof, and the magnet is exposed outdoors. In addition, it is possible to provide a solar cell module having excellent long-term reliability because the magnets do not scatter and the coercive force hardly changes even if the magnets are broken. .

Further, since the coercive force hardly changes even if the magnet is thin, a solar cell module having a thin magnet of 3 mm or less can be formed. However, when a thin magnet is provided outside the module, the magnet is easily broken. There was a splash.

When the embedded magnet was intentionally divided by a hammer and the surface magnetic flux density of the magnet was measured from above the sealing material using a commercially available Gauss meter, the decrease in the magnetic flux density was smaller than the surface magnetic flux density before the magnet was cracked. I didn't see it.

From these results, it is possible to provide a solar cell module having excellent long-term reliability because the magnet is buried in the solar cell module, so that even if the magnet is broken, the magnet does not scatter and the magnetic flux density does not change. I could do it.

(Embodiments) Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an example in which a solar cell module having a magnet on a surface opposite to a photovoltaic layer of a solar cell is fixed on a metal roof. 1 is a perspective view, FIG. 2 is a top view, and FIG.
3 is a sectional view taken along line AA ′ of FIG.

In FIGS. 1, 2 and 3, (101) is a metal roof, (201) to (204) are solar cell modules, and (301) is a magnet for fixing the solar cell module to a metal roof or the like. . (401) is a junction box for extracting a terminal, (501) is a connection cord,
(502) is a connector for connecting adjacent solar cell modules. (601) is a support plate of a metal roof.

The magnet used in the present invention, which is disposed between the solar cell module and the roof, is not particularly limited, but is preferably a rare earth magnet, and more preferably a samarium cobalt magnet.

The use of the rare earth magnet enhances the bonding between the solar cell module and the metal roof. Rare-earth magnets have a magnetic force that is at least 20 times that of ferrite-based magnets. In particular, when a solar cell module is installed on a metal roof, it is necessary to prevent the gust or typhoon from flying. Also, among the rare earth magnets, the samarium-cobalt magnet is resistant to rust and hardly loses its magnetic force even at a high temperature, so that it is more suitable for a solar cell module used outdoors.

The size and number of the rare earth magnets arranged on the back surface of the solar cell are not particularly limited, and are determined by the cost and magnetic force of the rare earth magnet. To prevent peeling, at least the four corners of the solar cell are arranged. Is preferred.

Further, by providing the magnet in the sealing material portion outside the solar cell element portion, the module can be bent and joined to the side surface of the roof material projection. When the magnet is sealed in the module, the thickness is preferably 3 mm or less so that the sealing material does not peel off depending on the thickness of the magnet.

When the rare earth magnets are arranged at regular intervals on the entire back surface of the solar cell and the solar cell module has flexibility, when the solar cell module is installed on a metal roof, As shown in FIG. 3, the solar cell module can be sequentially attached from the end. In FIG. 3, (2001) denotes a solar cell module (200).
2) is a solar cell element, (2003) to (2006) are rare earth magnets, and (2007) is a metal plate. This allows
It is possible to prevent the surface of the metal roof from being scratched or the operator from being injured by the solar cell module having the rare-earth magnet having a strong magnetic force sticking or peeling off to the metal plate suddenly.

When the solar cell module is mounted on the roof of a car such as a camper,
It is preferable to use a sheet-like rubber magnet for the magnet attached to the solar cell module. The solar module with sheet-shaped rubber magnet does not damage the roof of the car, it is safe, the solar module can be easily installed and removed, the thickness can be reduced, and the magnet will not be broken It has the feature of. The sheet-like rubber magnet can be produced, for example, by dispersing a ferrite-based magnetic powder in rubber, forming the sheet-like magnet with a roller, and then applying a magnetic force.

The magnet disposed on the surface of the solar cell opposite to the photovoltaic element may be externally attached to the solar cell module or may be embedded inside the solar cell module. It is preferably embedded in a sealing material for sealing the battery. Since the magnet is embedded in the sealing material, the metal plate is not damaged by the magnet, and the deterioration of rust and the like caused by the magnet being exposed to the outside is prevented, and even if the magnet is broken, The magnets do not scatter and have excellent long-term reliability.

The method of attaching the solar cell module of the present invention to a metal plate may be a method using only a magnet, or may be used in combination with fixing using, for example, a double-sided tape, an adhesive, a cable, a frame, or the like. For example, in the case of installation on a vertical metal wall or a metal roof under strong wind, the installation workability of the solar cell module becomes very poor, but at that time, temporarily fix it in advance with a magnet before using the double-sided tape, By permanently fixing with an adhesive, a cable, and a frame, installation workability and work safety can be greatly improved. Another effect is that when a flexible solar cell is fixed to the roof of a car using a frame, the solar cell is flexible and the center of the solar cell is wavy due to the influence of wind. These problems can be easily overcome by using a magnet in the center of the solar cell. Although the solar cell element of the solar cell module of the present invention is not particularly limited, it is preferable that the solar cell element itself has bendability. Since the solar cell element having the magnet on the back surface is bendable, attachment and detachment to and from the metal plate can be performed sequentially from the end face of the solar cell panel.

The solar cell element of the present invention is more preferably an amorphous silicon semiconductor formed on a stainless steel substrate. The amorphous silicon semiconductor formed on the stainless steel substrate can be thinned to a thickness of about 0.1 mm, and further, it is not necessary to use glass as a surface coating material, and a surface coating material such as a fluororesin film can be used. Therefore, the weight of the solar cell module itself can be greatly reduced to 1/2 to 1/4 as compared with the solar cell module using glass. The effect of the present invention is further exhibited by using such a lightweight and flexible solar cell panel. If the weight of the solar cell module itself is light, the magnetic force required for installation on a metal roof can be reduced, so the number and amount of magnets can be reduced,
As a result, it is possible to provide a lighter and cheaper solar cell module.

FIG. 8 is a schematic sectional view showing an example of a solar cell element used in the solar cell module of the present invention. In FIG. 9, (613) is a conductive substrate, (614) is a back reflection layer, (615) is a semiconductor layer as a photoelectric conversion member, (6)
16) is a transparent conductive layer, and (617) is a current collecting electrode.
The back reflection layer of (614) can also serve as the conductive substrate of (613).

As the conductive substrate (613), stainless steel, aluminum, zirconium, molybdenum, tungsten, cobalt, chromium, iron, tantalum, niobium, copper, titanium, carbon sheet, galvanized steel sheet, and a conductive layer are formed. A resin film or a resin plate of a certain polyimide, polyester, polyethylene naphthalide, epoxy or the like can be used.

As the thin film semiconductor layer (615), an amorphous silicon semiconductor, a polycrystalline silicon semiconductor, a crystalline silicon semiconductor, or a compound semiconductor such as copper indium selenide is suitable. In the case of an amorphous silicon-based semiconductor, a silane gas, a hydrogen gas, a gas that determines the conductivity type such as diborane or phosphine are introduced, and the semiconductor is formed by a plasma CVD method. In the case of a polycrystalline silicon semiconductor, it is formed by sheeting molten silicon or heat-treating an amorphous silicon semiconductor. In the case of CuInSe ₂ / CdS, it is formed by a method such as electron beam evaporation, sputtering, or electrodeposition (deposition by electrolysis of an electrolytic solution). As a configuration of the semiconductor layer, a pin junction, a pn junction, or a Schottky junction is used. The semiconductor layer is at least a back reflection layer (61
4) and a transparent conductive layer (616), and a tandem cell or a triple cell in which a plurality of the semiconductors are stacked can be used. The back reflection layer (614)
For this, a metal layer or a metal oxide, or a composite layer of a metal layer and a metal oxide layer is used. As the material of the metal layer, Ti, Al, Fe, Cu, Si, Cr, Mo, A
g, Ni, etc., and ZnO,
TiO ₂ , SnO ₂ or the like is employed. The method for forming the metal layer and the metal oxide layer includes resistance heating evaporation, electron beam evaporation, sputtering, spraying, and CVD.
And an impurity diffusion method. Further, as a material of the current collecting electrode (617) on the grid (grid) for efficiently collecting the current generated by the photovoltaic force on the transparent conductive layer, Ti, Au, Zn, Cr, Mo are used. , W, Al,
A conductive paste such as Ag, Ni, Cu, Sn, and silver paste is used. Sputtering using a mask pattern, resistance heating, CV
D, etc., or a method in which a metal layer is deposited on the entire surface, followed by etching and patterning, a method in which a grid electrode pattern is directly formed by photo-CVD, and a method in which a grid of a grid electrode negative pattern is formed and then plated. And a method of forming a conductive paste by printing. As the conductive paste, one obtained by dispersing a fine powder of gold, silver, copper, nickel, carbon or a mixture thereof with a binder polymer is usually used. Examples of the binder polymer include resins such as polyester, epoxy, acrylic, alkyd, polyvinyl acetate, rubber, urethane, and phenol.

As a material for the bus bar for further collecting and transporting the current collected by the grid electrode, tin, solder-coated copper, nickel or the like is used.
The connection of the bus bar to the grid electrode is made with a conductive adhesive or solder.

(Electrical Connection Between Solar Cell Panels) The method of electric connection between solar cell panels is not particularly limited, and can be arbitrarily determined depending on the voltage, current, and power of the solar cell module used.

FIG. 1 shows solar cell panels (202) and (2)
01), (201) and (203), (203) and (20)
4) is an example of connecting in series. Here, (401) is a junction box, (501) is a lead wire, (50)
2) is a waterproof connector. The connection method of the solar cell panel does not need to use a junction box, etc.
The solar cell panels can also be connected by a connection cord using the space of the metal roof.

[0045]

EXAMPLES The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples.

Embodiment 1 In the solar cell module (3000) of FIG. 5 of this embodiment, a samarium-cobalt rare-earth magnet is disposed on the surface of an amorphous silicon semiconductor solar cell substrate formed on a stainless steel substrate, and then a resin is formed. It is a sealed solar cell module.

FIGS. 4 and 5 are schematic views of the solar cell module of this embodiment. FIG. 4 is a rear view of the solar cell module according to the present embodiment, and shows positions of magnets. FIG. 5 is FIG.
It is BB 'sectional drawing of the solar cell module of FIG.

In FIG. 5, (3002) is a fluororesin film (trade name: Tefzel / Dupont), (3002)
3) EVA (ethylene-vinyl acetate copolymer) as a filler for solar cells, (3004) amorphous silicon solar cell element formed on SUS430, (300)
5) is a black fluororesin film (trade name: Tedlar / Dupont), and (3006) to (3011) are samarium cobalt rare earth magnets.

The solar cell module was manufactured as follows.

First, a photovoltaic element was prepared in the following procedure. After forming Al / ZnO which is a back reflection layer on a stainless steel substrate having a thickness of 0.125 mm by a sputtering method,
N-type a-Si layer, i-type a-Si by plasma CVD
A semiconductor layer of a p-type microcrystalline Si layer was formed, and then In ₂ O ₃ as a transparent electrode layer was formed by vapor deposition of In by a resistance heating method in an O ₂ atmosphere. Further, an amorphous silicon-based photovoltaic element was prepared by screen printing silver paste as a collecting electrode. Next, a samarium-cobalt magnet having a length of 24 mm, a width of 14 mm, and a height of 2 mm is aligned with the position shown in FIG. 4 on the back surface of the solar cell element, and the solar cell element is vacuum-laminated using a fluororesin film and EVA. Sealed. Terminals were taken out of the solar cell element by making a hole in the surface of the solar cell module, sealing that part with silicone resin, and then mounting a junction box thereon.

Next, the solar cell module was installed on a tile-roof type metal roof, and an outdoor exposure test was performed. The adjacent solar cell modules were connected by waterproof connectors. The solar cell module of this example was easy to install on a metal roof, and did not come off the metal roof even in a three-month outdoor exposure test. Also, when removing the solar cell module, the solar cell module was peeled off in order from the end, so that it could be easily removed by human power. Further, since the magnet was buried in the solar cell module, the metal roof was not damaged and the metal roof did not corrode.

(Embodiment 2) In this embodiment, as shown in FIGS. 6 and 7, a magnet is added to the back surface of the solar cell module of the first embodiment,
As shown in FIG. 7, a double-sided tape is further provided to prevent the center portion of the solar cell module from fluttering due to wind or the like, thereby further improving the reliability.

6 and 7, FIG. 6 is a view seen from the back surface of the solar cell module of the present embodiment, and FIG. 7 is a sectional view taken along the line CC 'of FIG. 6 and 7, (40
00) is a solar cell module, (4002) is a fluororesin film (trade name: Tefzel / Dupont), (40)
03) is an EVA (ethylene-vinyl acetate copolymer) as a filler for a solar cell, (4004) is an amorphous silicon solar cell element formed on SUS430, and (40)
05) is a black fluororesin film (trade name: Tedlar /
(4006) to (4011) are samarium cobalt rare earth magnets. (4001) is a double-sided tape provided at the center of the back surface of the solar cell module of the present embodiment. The double-sided tape used here is a double-sided tape in which an acrylic adhesive material is attached to an acrylic foam, and has a thickness of 1.1 mm, a tensile strength (kg / cm ² ) and a breaking elongation (%) of 12 (kg). / cm ² ) and 600 (%). In this example, the solar cell module was manufactured by the same method as in Example 1, and then, a double-sided tape was attached to the center of the back surface of the solar cell module.

The solar cell module of this embodiment is the same as that of the first embodiment.
The double-sided tape is attached to the center of the back of the solar cell module compared to the solar cell module of, so when the solar cell module is installed on a metal roof, the solar cell module can be prevented from fluttering due to the wind, further improving reliability It was possible to provide an excellent solar cell module.

Example 3 In this example, a sheet-like rubber magnet was used as the magnet on the back surface of the solar cell module. Further, in Examples 1 and 2, magnets were dispersed in the solar cell module. In this example, a rubber magnet having the same size as the solar cell module was externally attached to the back surface of the solar cell module with an adhesive. . FIG. 8 schematically shows a cross section of the solar cell module of this example. In FIG. 8, (50
00) is a solar cell module, (5001) is a fluororesin film, (5002) is an EVA, (5003) is an amorphous silicon solar cell element, (5004) is a black fluororesin film, and (5005) is a 1 mm thick rubber magnet. It is.

The solar cell module of this example was mounted on the roof of an automobile and run at a speed of 100 km / h. However, the solar cell module did not fall off the roof and had good bonding strength. Further, in the solar cell module of the present embodiment, since the magnet directly attached to the back surface of the solar cell module is a rubber magnet, the roof of the automobile was not damaged. Moreover, since the rubber magnet itself has a bendability, the bendability of the solar cell module itself is not impaired even if the rubber magnet is attached to the entire surface of the solar cell module.

[0057]

According to the method for installing a solar cell module according to the present invention, the solar cell module to be used has a solar cell element, a black resin film and a magnet integrated with each other. Since it can be fixed integrally, it is not necessary to provide a hole for fixing the solar cell module to the roof when installing the solar cell element (solar cell panel) on the roof. The operability at the time of roofing is improved, and not only the deterioration promotion during long-term use caused by the hole made at the time of such roofing work is suppressed, but also amorphous silicon is used. To effectively produce the effect of suppressing the deterioration of the conversion efficiency by applying heat to the photoelectric conversion layer,
Since the black resin film is provided integrally with the roof metal plate, the amorphous silicon is heated by heat applied from heat absorption when the black resin film is exposed to sunlight. Thereby, the deterioration of the conversion efficiency of the photoelectric conversion layer was suppressed, and the life of the solar cell element could be substantially improved.

Also, since the solar cell module has flexibility, it is necessary for a crystalline solar cell module having a thick glass plate, a polycrystalline solar cell module, an amorphous silicon solar cell module using glass as a substrate, and the like. The metal frame that was previously required is no longer necessary, and a stand for installing the solar cell module is not required, so the weight of the solar cell module is reduced by the amount of the frame and the stand, and as a result, it is installed on metal with a small magnetic force. The workability is improved, and the danger is reduced.

Further, the proportion of the cost of the frame and the gantry in the total cost of the solar cell module is large, and in some cases, the cost of the frame and the gantry is higher than the cost of the solar cell panel. However, since the flexible solar cell module having the magnet can be directly installed on the metal plate, the cost of the solar cell module can be significantly reduced.

Further, since the solar cell module having the magnet has a bendability, the solar cell module can be sequentially attached to the metal plate from the end and removed. Thereby, it was possible to prevent the surface of the metal plate from being scratched or the operator from being injured due to the magnet having a strong magnetic force sticking or peeling off the metal plate suddenly.

Further, by using a rare earth magnet for the magnet attached to the solar cell module, a strong bonding force with the metal plate could be obtained. In particular, when installed on a metal roof, it is necessary to have a bonding force that is not defeated by gusts. When a magnet is inserted into the module, the coercive force is 60 to 70% as compared with the case where the module is not sealed. However, a magnet having a strong coercive force is required to reduce the joining force, but rare earth magnets could answer this.

Further, among the rare earth magnets, the use of a samarium-cobalt magnet makes them resistant to rust,
It was possible to provide a solar cell module having a magnet with almost no decrease in magnetic force even at a high temperature.

Further, by using a sheet-like rubber magnet for the magnet attached to the solar cell module, for example, it is safe without damaging the roof of a car, is easy to attach and detach the solar cell module, is thin, and is thin. It was possible to provide a solar cell module in which the magnet was not damaged.

Further, since the magnet is embedded in the sealing material for sealing the solar cell, the magnet does not damage a metal plate such as a metal roof or a car roof, and the magnet is exposed outdoors. Thus, it was possible to provide a solar cell module having excellent long-term reliability by preventing deterioration of rust and the like caused by the above, and even if the magnet is broken, the magnet is not scattered.

[Brief description of the drawings]

FIG. 1 is a perspective view of a solar cell module according to an embodiment of the present invention.

FIG. 2 is a top view of a solar cell module according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view of the solar cell module according to the embodiment of the present invention, taken along line AA ′ of FIG. 1;

FIG. 4 is a rear view of the solar cell module according to the embodiment of the present invention.

FIG. 5 is a cross-sectional view of the solar cell module according to the embodiment of the present invention taken along line BB ′ of FIG. 4;

FIG. 6 is a rear view of a solar cell module according to another embodiment of the present invention.

FIG. 7 is a cross-sectional view taken along the line CC ′ of FIG. 6 of the solar cell module according to the embodiment of the present invention.

FIG. 8 is a sectional view of a solar cell module according to still another embodiment of the present invention.

FIG. 9 is a sectional view of a solar cell element of the solar cell module of the present invention.

[Explanation of symbols]

101 Metal roof 201, 202, 203, 204 Solar panel 301 Magnet 401 Junction box 501 Lead wire 502 Waterproof connector 601 Purlin 2001 Solar cell module 2002 Solar cell element 2003, 2004, 2005, 2006 Magnet 2007 Metal plate 3000 Solar cell module 3002 Fluororesin film 3003 EVA 3004 Solar cell element 3005 Black fluorinated resin film 3006, 3007 Magnet 4000 Solar cell module 4001: Double-sided tape 4002 Fluororesin film 4003 EVA 4004 Solar cell element 4005 Black fluorinated resin film 4006, 4007, 4008, 4009, 4010 ,
4011 Magnet 5000 Solar cell module 5001 Fluororesin film 5002 EVA 5003 Solar cell element 5004 Black fluororesin film 5005 Rubber magnet 613 Conductive substrate 614 Back reflection layer 615 Semiconductor layer 616 Transparent conductive layer 617 Current collecting electrode

Claims (3)

(57) [Claims] 1. A method of installing a solar cell module on a roof metal plate, wherein the solar cell module comprises a flexible conductive substrate, and a photoelectric conversion using an amorphous silicon semiconductor provided on a surface side of the substrate. A solar cell element having a layer and a transparent electrode provided on the photoelectric conversion layer, a magnet disposed on the back side of the flexible conductive substrate used for the solar cell element, and a black resin film disposed on the back side. An integrated structure, the roof metal plate is fixed by the magnet used for the solar cell module, and a double-sided adhesive tape is disposed between the solar cell module and the roof metal plate, thereby bonding the two. A method for installing a solar cell module, comprising: 2. The method according to claim 1, wherein the solar cell element is sealed with a filler and a resin film provided on a surface side of the transparent electrode. 3. The method according to claim 1, wherein a reflective layer is provided between the flexible conductive substrate and the solar cell element.