JPH09119202A - High-rigidity solar cell module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the peeling of a solar cell panel by external force such as wind pressure by unifying a heat-insulating material, a corrugated type metal plate, etc., on the rear side of the solar cell panel, increasing the thickness of a panel frame body and elevating rigidity. SOLUTION: A heat-insulating material 3 having excellent heat-retaining properties and heat-storing properties and a reinforcing material 4 having superior rigidity are stuck integrally on the rear of a single or a plurality of amorphous silicon solar cell panels 2 installed on the roof of a house and the exterior wall, etc., of a building with adhesives B, and a solar cell module 1 is formed. A polystyrene foam, a polyethylene foam, a polyurethane foam, etc., having adhesive properties are used besides glass wool, carbon fibers, a refractory brick etc., as the heat-insulating material 3. A nonmetal such as glass can also be employed besides a stainless steel plate, a copper plate, an aluminum alloy plate, etc., as the reinforcing material 4. The generation of torsion due to wind pressure, etc., is prevented, and the peeling of the panel 2 is obviated. Accordingly, the reliability of solar cells can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar cell module suitable as a roof of a house or an outer wall of a building, for the purpose of improving the rigidity of the solar cell module, and further for improving the reliability of an amorphous silicon solar cell. The present invention relates to a suitable high-rigidity solar cell module.

[0002]

2. Description of the Related Art In recent years, various solar power generation systems to be installed in buildings such as buildings and ordinary houses have been proposed and put into practical use as part of efforts to address global environmental problems.
Usually, such a solar power generation system is configured by installing a plurality of solar cell modules on the roof of a building or the roof of a house.

This solar cell module is generally a solar cell panel in which an amorphous silicon semiconductor layer is deposited as a solar cell element on a transparent substrate, or a solar cell panel in which a crystalline silicon semiconductor plate is enclosed on the transparent substrate. , A frame that holds this solar cell panel, and, for example, when installing on the roof of a house, a desired roof of the roof made of rafters, field boards, roof tiles provided on the roof of the house The roof tile is removed, the fixture is erected and fixed to the field plate of the part, the frame is fixed to the upper end of the fixture, and the roof tile is installed at a certain interval and floated.

By the way, a solar cell element made of an amorphous silicon semiconductor basically has lower power generation efficiency than a solar cell element made of a crystalline silicon semiconductor, and
By irradiating light for a relatively short period of time (2 to 3 months), the power generation output drops to about 80% of the initial power generation output, after which it is maintained at the level after the drop (Stebler Ronski In order to obtain the same effect, and to obtain an output equivalent to that of a solar cell element made of a crystalline silicon semiconductor, a large light receiving area is required. Therefore, a solar cell element made of an amorphous silicon semiconductor is cheaper and has a better appearance than a solar cell element made of a crystalline silicon semiconductor, but its spread has been significantly delayed. However, it is known that this decrease in power generation output (hereinafter, simply referred to as photodegradation) can be prevented by heating the solar cell element to a high temperature of 80 ° C. to 90 ° C. or higher, and that even if the solar cell element once deteriorates, it is recovered. Has been. If this photo-deterioration can be reduced, the amorphous silicon solar cell will be superior in that it is low in price and excellent in design.

[0005]

The conventional solar power generation system as described above has the following two problems. (1) A gap is formed between the solar cell module and the roof tile, and the force of wind that pushes up the solar cell module from below acts on the solar cell module, so that the solar cell module is not blown off even in strong winds. Therefore, it is necessary to sufficiently increase the mounting strength of the solar cell module, which causes a problem that the mounting structure becomes complicated or becomes large. In order to solve this problem, it is possible to remove the roof tile below the solar cell module and bring the solar cell module into close contact with the base plate, or to embed the solar cell module in the base plate. However, it is difficult to waterproof the rainwater between the solar cell module and the base plate, so there is concern about leakage and corrosion of the base plate. I have a problem. Furthermore, as a problem common to both,
Although it does not receive the force of the wind that pushes up from below, when the wind blows through the surface of the solar cell module installed on the roof, the solar cell panel will peel off due to the negative pressure that tends to pull it off. There is a point of concern.

(2) In the mounting structure of the solar cell module, since the gap is formed between the solar cell panel and the roof tile as described above, the temperature of the solar cell element is considerably raised by the sunlight. However, it is difficult to heat the solar cell element to a high temperature of 80 ° C. to 90 ° C. or more by heat radiation from the upper and lower surfaces of the solar cell panel, and the amorphous silicon solar cell is not significantly deteriorated in power generation efficiency due to light deterioration. Inevitable.

(3) Further, a solar cell module made of an amorphous silicon semiconductor has a problem in fireproof performance because it is formed by laminating an amorphous silicon semiconductor layer and an electrode layer on a glass substrate. Therefore, if a solar cell module with a conventional structure is to be installed on the roof, it is necessary to take sufficient fire prevention measures such as laying a fireproof board under the solar cell module in accordance with the Building Standards Law. The construction cost is high.

The object of the present invention is to provide a high-rigidity solar cell module suitable for improving the rigidity of the solar cell module so as to withstand wind pressure and other external forces and for improving the reliability of the amorphous silicon solar cell. It is in the place of providing.

[0009]

According to a first aspect of the present invention, there is provided a high-rigidity solar cell module in which a single or a plurality of solar cell panels, and at least a heat insulating material and a flat plate material provided on the back side thereof are bonded to each other by an adhesive layer. It is characterized by being integrated through. Here, as in claim 2, the adhesive layer is
A preferred embodiment is an insulating heat insulating material.

A high-rigidity solar cell module according to a third aspect of the present invention is one or a plurality of solar cell panels, and at least a substantially corrugated plate material provided on the back side of the solar cell panel, which is filled in a recess of the plate material. It is characterized by being integrated by a heat insulating material having.

In the high-rigidity solar cell module according to claim 4, a single or a plurality of solar cell panels and a flat plate material provided on the back surface side thereof are integrated by an insulating heat insulating material. It is characterized by.

It is a preferred embodiment that a metal plate is used as the plate material.

The term "adhesive layer" as used in the present invention broadly refers to one having adhesiveness to each of a solar cell panel, a heat insulating material and a plate material, and specifically, general adhesives, pressure sensitive adhesive sheets, double-sided tapes, urethanes. Examples include synthetic resins such as foam. The present invention also increases the rigidity of the solar cell module by adhering a heat insulating material or a plate material to the solar cell panel and effectively increasing the thickness of the solar cell module. That is, for example, in a solar cell module in which a solar cell panel, a heat insulating material, and a plate material are simply laminated, when a force is applied in the twisting direction, a gap is generated between the solar cell panel and the heat insulating material or the heat insulating material and the plate material. Therefore, the rigidity is not so improved. On the other hand, as in the present invention, when the solar cell panel, the heat insulating material, and the plate material are firmly adhered and integrated by an adhesive layer made of an adhesive or the like, the solar cell can be applied even if a force is applied in the twisting direction. Since there is no gap between the panel and the heat insulating material or between the heat insulating material and the plate material, the thickness is effectively increased, and the rigidity is improved. Further, as the plate material, one having higher rigidity than at least the heat insulating material is more preferable.

The solar cell module of the present invention as described above is mainly applied to be installed on the roof of a house. Specifically, it is also preferable to use a roof panel in combination with the following structure. This is an example. That is, when the solar cell module of the present invention is housed in a rectangular frame body and a metal is used for the plate material, in combination with this frame body, the upper surface of the frame body is almost entirely covered in the outer peripheral portion of the metal plate. Specific examples include forming a brim portion for covering, providing a reinforcing member for supporting the solar cell module from the lower side in a transverse shape inside the frame, and forming the reinforcing member as a plate-like member closing the inside of the frame.

Further, when the roof panel using the solar cell module of the present invention is embedded in the base plate,
There is concern about waterproofness between adjacent roof panels, but in this case, the solar cell panel and the heat insulating material provided on the back side of the solar cell panel and the rigid flat plate material are integrated via an adhesive layer. In doing so, for example, a waterproof sheet having a size that allows the outer edge portion to extend to the outer surface of the frame body is provided on the back surface of the solar cell panel, and these are integrated to form a solar cell module. Further, even when the solar cell panel and the substantially corrugated plate material having rigidity provided on the back side thereof are integrated by the heat insulating material having adhesiveness filled in the concave portion of the plate material, for example, the solar cell panel A similar waterproof sheet may be provided on the back surface and these may be integrated to form a solar cell module.

The function and action of the solar cell module of the present invention constituted by the above means are as follows. In the high-rigidity solar cell module according to claim 1, a single or a plurality of solar cell panels, and at least a heat insulating material and a flat plate material provided on the back side thereof are integrated via an adhesive layer. Therefore, the strength or rigidity of the solar cell module can be improved by increasing the plate thickness or the effective thickness. Further, since a heat insulating material is provided on the back surface side of the solar cell panel, heat dissipation from the back surface side of the solar cell panel is prevented, and the temperature rise of the solar cell panel is promoted. Furthermore, when the solar cell module of the present invention is embedded and installed in the base plate, heat transfer to the inside of the building is prevented by the heat insulating material, and heat exhausted from the building is prevented, Fluctuations in room temperature are suppressed.

In the high-rigidity solar cell module according to claim 2, since the adhesive layer is a heat insulating material having adhesiveness, the same material as the heat insulating material is used to obtain the function and action in the above-mentioned claim 1. In addition, manufacturing labor and cost can be reduced, and dissimilar materials will not be bonded to the heat insulating material, and further improvement of the adhesive force can be expected.

In the high-rigidity solar cell module according to the third aspect, a single or plural solar cell panels and at least a substantially corrugated plate material provided on the back side thereof are filled in the recesses of the plate material. It is integrated with a heat-insulating material that has the property, and it is expected that the rigidity will be further improved due to the substantially corrugated plate shape.

In the high-rigidity solar cell module according to the fourth aspect, a single or a plurality of solar cell panels and a flat plate member provided on the back side thereof are integrated by an insulating heat insulating material. Since the heat insulating material also serves as the adhesive layer, the heat insulating material can be filled at the installation site of the solar cell, which can be expected to reduce manufacturing costs and man-hours, and ensure flexibility for the construction schedule.

In the high-rigidity solar cell module according to claim 5, in constructing a roof panel in which the above-mentioned solar cell module is installed in a rectangular frame body, a metal plate is bent to form an outer peripheral portion thereof. Since the brim portion that covers substantially the entire area of the upper surface of the frame body can be formed and the brim portion of the metal plate can be directly fixed to the frame body, the rigidity of the entire roof panel can be improved. Also, excellent fireproof performance can be obtained.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. FIG. 1 shows a cross-sectional structure of a high-rigidity solar cell module 1 according to claim 1. The illustrated example shows a high-rigidity solar cell module 1 in which a solar cell panel 2, a heat insulating material 3 provided on the back side thereof, and a metal plate 4 as a flat plate material are integrated via an adhesive layer B. The solar cell panel 2, the adhesive layer B, the heat insulating material 3, the adhesive layer B, and the metal plate 4 are laminated in this order and integrated. In the structure of this figure, the rigidity of the solar cell module 1 is improved, and the metal plate 4 is provided below the heat insulating material 3, that is, on the indoor side when installed on the roof of the house, and ignites indoors. It is particularly suitable for preventing fires from spreading to nearby areas. Further, as another embodiment according to claim 1, as shown in FIG. 2, a solar cell panel 2, an adhesive layer B, a metal plate 4, an adhesive layer B, a heat insulating material 3, an adhesive layer B and a metal plate 4 are provided. One that can be illustrated by laminating in this order and integrating. In this case, since the metal plates 4 are provided on the upper and lower sides of the heat insulating material 3, it is particularly suitable for preventing the spread of fire to the neighborhood as well as the fire caused by ignition from the neighboring house. I understand.

Further, the cross-sectional structure of the high-rigidity solar cell module 1 according to claim 2 is, as shown in FIG. 3, an adhesive layer B made of a heat insulating material having an adhesive property with the solar cell panel 2 and an adhesive property with the heat insulating material 3. Adhesive layer B made of heat insulating material and metal plate 4
An example is one in which and are laminated in this order and integrated.

Next, FIG. 4 shows a cross-sectional structure of the high-rigidity solar cell module 1 according to claim 3. In the illustrated example, the solar cell panel 2 and the metal plate 4 as a substantially corrugated plate material provided on the back side of the solar cell panel 2 are recessed portions 4a
The high-rigidity solar cell module 1 is characterized in that it is integrated by the heat insulating material 3 having adhesiveness filled in the. When the metal plate 4 is formed into a substantially corrugated plate in this manner, the rigidity is further improved as compared with the case of a flat plate. Further, as a suitable heat insulating material 3 that can be used in this example, one that can be injected into the concave portion 4a after the solar cell panel 2 and the metal plate 4 are brought into contact with or bonded to each other is preferable. Specifically, urethane foam and the like can be exemplified. In the example of this figure, as the substantially corrugated metal plate 4,
As shown, a flat top portion 4b is used, the top portion and the back surface of the solar cell panel 2 are in contact with each other, and the back surface 2a of the solar cell module 1 is also finished flat.

Further, FIG. 5 shows a cross-sectional structure of the high-rigidity solar cell module 1 according to claim 4. The illustrated example is a high-rigidity solar cell in which a solar cell panel 2 and a metal plate 4 as a flat plate material provided on the back side thereof are integrated by a heat insulating material 3 having adhesiveness. Module 1. In this structure, the solar cell panel 2 and the metal plate 4 are adhered by the heat insulating material 3, which is easy to assemble and can be assembled at the construction site, so that flexibility in the construction schedule is increased. There are advantages. Thus, in the high-rigidity solar cell module 1 according to claim 4, the heat insulating material 3 functions as it is as an adhesive layer.

The solar cell panel 2 is, as shown in FIG.
Basically, a transparent substrate 10, an amorphous silicon solar cell element layer 11 formed on the lower surface of the transparent substrate 10, a filler 12 provided below the solar cell element layer 11, and a filling material. And a back sheet 13 provided below the material 12. As the translucent substrate 10, tempered glass, laminated glass, or other general translucent substrate is used, and a substrate to which silicon oxide or the like is adhered may be used as necessary so that the glass component is not eluted. Further, in the present invention, since the adhesive layer B is present on the back surface of the solar cell panel 2, even if the transparent substrate 10 is broken, fragments thereof do not scatter. Therefore, as the transparent substrate 10, as a window glass. Inexpensive lead glass used or other inexpensive alkali glass can be used. In this case, originally, there is a concern about diffusion of an alkaline component into the amorphous silicon solar cell element layer 11, but as described above, there is no problem if the surface coated with silicon oxide or the like is used. The amorphous silicon solar cell element layer 11 includes a transparent conductive film, a p-i-n film, and a transparent conductive film on the transparent substrate 10.
Alternatively, an EV provided on the lower surface side of the laminated body in which an amorphous silicon layer of n-ip and a metal electrode layer are sequentially deposited.
It is protected by a filler 12 such as A, PVB, polyisobutylene resin, and epoxy resin coating layer. here,
When a relatively hard material such as an epoxy resin coating layer is used as the filler, the back sheet 13 may be omitted because the surface is not soft.

The back sheet 13 is usually composed of a Tedler or the like in which aluminum foil is sanded. However, since it is poorly compatible with the adhesive, the back sheet 13 is formed by using the epoxy resin coating layer as the filler as described above. It may be omitted, or further, the adhesive layer B may be made to function as a substitute for the filler 12, and both the filler 12 and the back sheet 13 may be omitted. Here, tin oxide, indium tin oxide, or zinc oxide is used as the transparent conductive film, and a heterojunction structure of amorphous silicon carbide and amorphous silicon is adopted as the amorphous silicon layer. Microcrystallizing the p-layer or the n-layer on the film side or the metal electrode layer side is effective in reducing the series resistance.

For the metal electrode layer, a general metal material such as chromium, aluminum or silver is used as a single layer or multi-layer structure. In particular, since the element temperature becomes high, in order to prevent the diffusion of metal components between the amorphous silicon layer and the amorphous silicon layer, the transparent conductive film or the silicide film described above is formed between the amorphous silicon layer and the metal electrode layer. Without interposing a metal diffusion preventing layer such as a layer, or without interposing this metal diffusion preventing layer,
It is effective to use a silicide forming metal such as chromium or molybdenum as the metal electrode layer, or to have a laminated structure of these silicide forming metals and other metals. Further, in terms of the effect of confining incident light, the use of silver having a high reflectance is particularly effective. Furthermore, EVA as the filling material 12,
When PVB or the like is used, it is sealed by a vacuum laminating method, in the case of a polyisobutylene-based resin, it is heated and fluidized and applied, and in the case of an epoxy resin coating layer, it may be heated and cured after coating.

As a material constituting the heat insulating material 3, for example, polystyrene foam, polyethylene foam, rigid polyurethane foam, flexible polyurethane foam, rigid vinyl chloride foam, urea foam, phenol foam, which are excellent in heat insulating property, heat retaining property and heat storage property, are used. , Rubber foam, polypropylene, polyethylene terephthalate,
Foam and porous materials such as perlite, vermiculite and foam glass, asbestos, rock wool, glass wool, ceramic fibers, animal and vegetable fibers, soft fiber materials, carbonaceous fibers, potassium titanate fibers and other calcium materials, and calcium silicate. , Basic magnesium carbonate, diatomaceous earth, diatomaceous earth insulation bricks, fireproof insulation bricks, castable fireproof insulation materials, cork, processed products of granular materials such as carbon powder, and multi-layer foil materials such as aluminum foil It is possible to use foam rubber materials such as hard foam rubber and foam chloroprene rubber, lightweight cellular concrete, and foam aluminum. As the heat insulating material having adhesiveness which can be used in claims 2 and 4, polystyrene foam, polyethylene foam, rigid polyurethane foam, flexible polyurethane foam and the like are preferable.

As the metal plate 4, a metal plate such as an iron plate, a stainless steel plate, a copper plate, an aluminum alloy plate, an enameled steel plate, a zinc iron plate or a titanium alloy plate is used alone, or a metal plate subjected to anticorrosion treatment, Alternatively, it is possible to employ a laminated plate of a metal plate and an inorganic heat insulating plate or an inorganic highly filled foam plastic plate. Also, the metal plate 4
Other plate materials include glass, but from the perspective of improving fire protection performance, calcium silicate, basic magnesium carbonate, diatomaceous earth, diatomaceous earth insulation brick, fireproof insulation brick, castable refractory insulation material together with metal. It is preferable to use ceramic non-combustible materials such as lightweight aerated concrete. Further, as the substantially corrugated plate material described later,
The metal plate 4 is preferable. Further, it is desirable that the material has a higher rigidity than at least the heat insulating material to be combined.

Further, the high-rigidity solar cell module 1 shown in FIG. 7 has a cross-sectional structure shown in FIG. 1 and FIG. You may form the vertical wall part 5A extended to the battery panel 2 side. In this case, the strength and rigidity of the solar cell module 1 against twisting and bending can be further improved.

For the high-rigidity solar cell module 1 shown in FIG. 8, which has a sectional structure shown in FIG. 2, a metal plate on the side of the solar cell panel 2 as shown in FIG. 4 is bent to the back side to provide a vertical wall portion 5B to further increase the rigidity in the twisting direction, or as shown in FIG. 6B, the metal plate 4 on the back side is bent. By providing the vertical wall portion 5A, the rigidity in the twisting direction can be similarly enhanced.

[0032]

EXAMPLES A main application example of the present invention is intended to be installed on a roof of a house as a roof panel having a power generation function in which a frame is attached to the solar cell module 1 of the present invention. Hereinafter, an example in which a frame body is attached to the high-rigidity solar cell module 1 of the present invention to form a roof panel and the roof panel is applied to a roof of a house will be described in detail. Further, in the following examples, an example of the solar cell module 1 using one metal plate 4 as already shown in FIGS. 1 and 3 will be described, but a solar cell module 1 having another structure will be described. Needless to say, the present invention is not limited to the following examples. In the following examples, the eaves side is defined as the front side and the ridge side is defined as the rear side. Further, the adhesive layer B shown in each of the above figures is an extremely thin layer when viewed from the roof panel as a whole, and hence the description of the adhesive layer B is omitted in the following description, and the solar cell module 1 or the solar cell panel 2 is omitted. , Only the components of the solar cell module 1 such as the heat insulating material 3 and the plate material (metal plate) 4 are denoted by reference numerals. As shown in FIGS. 9 and 10, a plurality of purlins 21 oriented in the left-right direction are arranged side by side at a fixed interval on the upper part of the house 20, and a plurality of roof panels 23 are arranged on the purlin 21 side by side. 3 rows are arranged in the front and back, and the roof 22
Is composed of a plurality of roof panels 23. That is, in this house 20, the rafters, field boards, and roof tiles are omitted, and the plurality of roof panels 23 function as rafters, field boards, and roof tiles. Note that reference numeral 24
Is a skylight. The roof 22 includes a roof panel 23A that constitutes the left side of the roof 22, a roof panel 23B that constitutes the right side of the roof 22, a roof panel 23A of the roof 22,
It is composed of three types of roof panels 23, that is, a roof panel 23C that configures the space between 23B.

First, regarding the structure of the roof panel 23C,
This will be described with reference to FIGS. 11 to 18. A substantially rectangular frame-shaped wooden frame body 32 including a pair of side frames 30 and a pair of connecting frames 31 connecting front and rear ends of both side frames 30 is provided. The wooden frame body 32 is a purlin. 21 are fixed with nails or bolts (not shown), and the wooden frame bodies 32 of the roof panels 23C continuously provided in the lateral direction are also fixed with nails or bolts (not shown).

In the lower half of the wooden frame 32, bar-shaped reinforcing members 33 oriented in the left-right direction are provided at predetermined intervals, and both ends of the reinforcing members 33 are fixed to the left and right side frames 30. The elastic cushioning material 3
4 are provided. However, the cushion material 34 may be omitted. The high-rigidity solar cell module 1 of the present invention is provided on the cushion material 34, and a vertical wall portion 5A extending upward along the inner wall of the wooden frame body 32 is formed on the outer peripheral portion of the metal plate 4. A flange portion 6 extending to the upper surface side of the wooden frame 32 is formed at the upper end portion of the vertical wall portion 5A.

Here, the positional relationship of the solar cell module 1 in the roof panel 23 will be described. The flat plate-shaped heat insulating material 3 is bonded to the entire surface of the metal plate 4 inside the metal plate 4, that is, on the side of the solar cell panel 2. The heat insulating material 3 is provided by being adhered by layers, and the upper surface of the heat insulating material 3 is arranged slightly higher than the upper surface of the wooden frame 32. However, the metal plate 4 is fixed to the middle part of the wooden frame 32 by fixing a substantially L-shaped metal fitting.
Also, the heat insulating material 3 may be supported. In addition, the reinforcing member 33
May be configured by a plate-shaped member that closes the inside of the wooden frame body 32, and further, the wooden frame body 32 and the reinforcing member 33 may be configured by square wood, plywood, or the like.

A stepped portion 32a is formed near the front end and the rear end of the wooden frame 32 and the heat insulating material 3, and a roof base panel 35 is fixed on the stepped portion 32a. The upper end portion is set to have substantially the same height as the portion of the wooden frame 32 other than the step portion 32a.

Here, a waterproof sheet 36 extending to the outside of the solar cell panel 2 is adhered to the back surface of the solar cell panel 2 through an adhesive layer, and the waterproof sheet 36 and the heat insulating material 3 are adhered by an adhesive layer. ing. Therefore, the solar cell panel 2, the waterproof sheet 36, the heat insulating material 3, and the metal plate 4 are adhered to each other in this order via the adhesive layer and integrated to form the high-rigidity solar cell module 1. The waterproof sheet 36 extends over the entire upper surface of the front and rear roof underlayer panels 35, and the outer edge portion of the waterproof sheet 36 is
The waterproof sheet 36 extends along the upper surface and the outer surface of the wooden frame 32 and is attached to the wooden frame 32. The waterproof sheet 36 prevents rainwater and the like from entering the wooden frame 32. In addition,
Examples of the material of the waterproof sheet 36 include special rubberized asphalt compound and polyisobutylene.
Further, when the waterproof sheet 36 having adhesiveness is used, the waterproof sheet 36 functions as an adhesive layer.

On the light-receiving surface side of the solar cell module 1, a plurality of solar cell panels 2 are connected in front and rear with a slight gap, and a sealing material 37 is filled in the gap between the adjacent solar cell panels 2. ing. A transparent cover member that covers the upper surface of the solar cell panels 2 may be provided over the plurality of solar cell panels 2 that are arranged in series.

In order to fix and hold the solar cell module 1 in which a plurality of solar cell panels 2 are arranged in series on the wooden frame 32,
The roof panel 23C includes a front holding means 40 and a rear holding means 41 that hold the front edge and the rear edge of the group of solar cell panels 2, and the left and right sides 1 that hold the side edge of the solar cell panel 2.
A pair of side holding means 42 is provided.

The side portion holding means 42 will be described. As shown in FIGS. 11, 14 and 16, the metal plate 4 is provided on the left and right side frames 30 corresponding to the group of solar cell panels 2. The side receiving bracket 45 is fixed with the flange 6 and the waterproof sheet 36 sandwiched therebetween, and the side edge portion of the solar cell panel 2 is placed on the inner half of the side receiving bracket 45. A side fixing metal fitting 46 having an arm portion 46a extending to a side edge portion of the solar cell panel 2 is detachably attached to an outer half portion of the side receiving metal fitting 45, and the arm portion 46a and the side edge of the solar cell panel 2 are attached. A sealing material 47 made of ethylene propylene rubber (EPDM) or the like is provided between the parts, and the side edge portion of the solar cell panel 2 is watertightly sandwiched between the side receiving bracket 45 and the side fixing bracket 46 to form a side frame. It is fixed at 30. A seal member 48 is provided between the solar cell panel 2 and the waterproof sheet 36 on the wooden frame 32, and a seal for preventing rainwater or the like from entering between the adjacent roof panels 23C on the outer side of the side receiving bracket 45. Material 49 is attached.

The side holding means 42 is assembled in advance to the side frame 30 in a factory or the like. Further, a side portion holding means 42 having the same configuration as the roof panel 23C is also provided on one side portion of the roof panels 23A and 23B described later, and at the construction site, the roof panel 23 is adjacent to the roof panel 23 in a state of being set on the purlin 21. The connecting plate 50 is attached with screws or the like between the upper surfaces of the side fixing members 46 of the side holding means 42 to connect the adjacent side fixing members 46 to each other by the connecting plate 50, and the connecting plate 50 covers the cover member 5.
1 is fitted and fixed to prevent rainwater and the like from entering between the adjacent roof panels 23.

Explaining the front part holding means 40, as shown in FIG. 11, FIG. 13 and FIG. The front edge of the solar cell panel 2 on the front side is placed on the rear half of the front receiving bracket 55. A front fixing bracket 56 having an arm portion 56a extending above the front edge portion of the solar cell panel 2 is detachably attached to the front half portion of the front receiving bracket 55, and the arm portion 56a and the front edge portion of the solar cell panel 2 are attached. A sealing material 57 made of ethylene propylene rubber (EPDM) or the like is provided between them, and the front edge portion of the solar cell panel 2 on the most front side is watertightly sandwiched between the front receiving bracket 55 and the front fixing bracket 56. It is fixed to the roof base panel 35. An extension portion 56b extending forward is formed on the front fixing bracket 56, and the roof member 25 is provided between the extension portion 56b and the roof base panel 35.
Is configured to be mounted.

The front receiving bracket 55 is assembled in advance on the rear edge of the roof base panel 35 on the front side in a factory or the like. Further, front holding means 40 having the same configuration as the roof panel 23C is also provided in front of roof panels 23A and 23B, which will be described later, and at the construction site, the roof panels 23 are adjacent to each other with the roof panel 23 set on the purlin 21. The front fixing bracket 56 will be assembled over the two or three roof panels 23. Also,
Similarly to the front fixing bracket 56, the roof member 25 mounted between the extending portion 56b and the roof base panel 35 is provided over a plurality of roof panels 23, and the roof panel adjacent to the roof member 25 by the roof fixing member 56 is provided. It is possible to prevent rainwater and the like from entering between the front portions of 23.

The rear holding means 41 will be described. As shown in FIGS. 11, 13 and 18, a rear bracket 60 is fixed on the front edge of the rear roof underlayer panel 35, and the rearmost bracket is the rearmost. The rear edge of the side solar cell panel 2 is placed on the front half of the rear bracket 60. A rear fixing metal fitting 61 having an arm portion 61a extending above the rear edge portion of the solar cell panel 2 is detachably attached to the rear half of the rear receiving metal fitting 60, and is provided between the arm portion 61a and the rear edge portion of the solar cell panel 2. Is provided with a sealing material 62 made of ethylene propylene rubber (EPDM) or the like, and the rear edge of the rearmost solar cell panel 2 is watertightly sandwiched between a rear receiving bracket 60 and a rear fixing bracket 61 to form a roof base panel. It is fixed to 35.

This rear portion holding means 41 is assembled in advance on the front edge portion of the rear roof underlayer panel 35 in a factory or the like. Further, the rear holding means 4 having the same structure as the roof panel 23C is provided also at the rear portions of the roof panels 23A and 23B described later.
1 is provided, at the construction site, with the roof panel 23 set on the purlin 21, the rear cover member 63 is assembled to the rear fixing metal fittings 61 over the adjacent two or three roof panels 23, and the rear portion is attached. The roofing material 25 is set on the extended portion 63a of the cover member 63. The extended portion 63
Similarly to the rear fixing bracket 61, the roof member 25 set on a is provided over a plurality of roof panels 23, and rainwater or the like enters between the rear portions of the roof panels 23 adjacent to each other by the roof member 25 and the rear fixing bracket 61. Will be prevented.

Since the roof panels 23A and 23B have a symmetrical structure and basically the same structure as the roof panel 23C, only the right roof panel 23B will be briefly described below. As shown in FIG. 19, a wooden frame 32
Is provided in the width direction, a center frame 71 is provided substantially parallel to the side frame 30 at a substantially central portion in the left-right direction of the wooden frame 70, and the front and rear ends of the center frame 71 are connected to the connecting frame 31. A plurality of reinforcing members 33 are provided between the side frames 30 in parallel with the connecting frame 31 at regular intervals.

On the center frame 71 and the reinforcing member 33 between the left and right side frames 30, as shown in FIGS. 11, 20, and 21, as with the roof panel 23C,
The high-rigidity solar cell module 1 of the present invention is provided on the cushion material 34. In this solar cell module 1, stepped step portions 70a are formed on the upper surfaces of the right half portion and upper and lower end portions of the wooden frame 70 and the heat insulating material 3, and a roof base panel 72 is provided on the step portion 70a. ,
The roof base panel 72 is a wooden frame 7 through nails or wood screws.
It is fixed to 0. The waterproof sheet 36 extending from the solar cell panel 2 is adhered to the left half of the heat insulating material 3 and the roof base panel 72, and the outer peripheral portion of the waterproof sheet 36 extends along the upper surface and side surfaces of the wooden frame 70. A plurality of solar cell panels 2 are extended on the upper surface of the waterproof sheet 36 in the front-rear direction and are continuously attached to the upper surface of the waterproof sheet 36 except the roof base panel 72.

The left side edge, the front edge and the rear edge of the plurality of solar cell panels 2 arranged side by side in the solar cell module 1 have a side holding means 42 and a front holding means having the same structure as the roof panel 23C. The means 40 and the rear holding means 41 respectively fix and hold the wooden frame body 70, and consequently, the solar cell module 1 and the wooden frame body 70 are fixedly held. The right side edge is held by the side holding means 75 having the following structure.

A side bracket 76 is provided on the left end of the roof base panel 72 via the waterproof sheet 36, and the right edge of the solar cell panel 2 is placed on the left half of the side bracket 76. Has been done. A side fixing metal fitting 77 having an arm portion 77a extending to the right edge of the solar cell panel 2 is detachably attached to the right half portion of the side receiving metal fitting 76, and the arm portion 77a
A sealing material 78 made of ethylene propylene rubber (EPDM) or the like is provided between the side edge portion of the solar cell panel 2 and the side edge portion of the solar cell panel 2, and the right edge portion of the solar cell panel 2 is between the side receiving bracket 76 and the side fixing bracket 77. It is sandwiched in a watertight manner and fixed to the roof base panel 72.

The side holding means 75 is assembled in advance on the left edge of the roof base panel 72 in a factory or the like. Further, at the construction site, with the roof panel 23 set on the purlin 21, the side cover member 79 is assembled to the side fixing metal fitting 77, and the upper and lower extension portions 7 of the side cover member 79 are assembled.
The roofing material 25 will be installed between 9a and 79b.

Note that, as shown in FIGS. 11 and 22, the rear end portions of the side receiving fittings 76, the side fixing fittings 77, and the side cover members 79 are closed by the front end surface of the rear cover member 63. An end cap 80 is attached to the front end portion. Further, end caps 81 are attached to both left and right ends of the rear cover member 63 to prevent rainwater and the like from entering. Further, the left and right ends of the front receiving bracket 55 and the front fixing bracket 56 are closed by the inner surface of the side cover member 79 to prevent rainwater and the like from entering. Note that, as shown in FIGS. 18, 21, and 22, a waterproof tape 82 is attached between the upper surfaces of the extending portions 63a and 79b and the waterproof sheets 36 on the roof base panels 35 and 72 to cover the covers. Rainwater and the like are prevented from entering between the members 63 and 79 and the waterproof sheet 36.

A terminal box 14 is provided on the lower surface of the solar cell panel 2 in the solar cell module 1 at a substantially central portion, and the output line 15 connected to the terminal box 14 includes an adhesive layer, a waterproof sheet 36, and a heat insulating material 3. And penetrates through the metal plate 4 and is led out to the lower side. One solar cell module 1
The amount of power generated by the
It is also a consideration to set it to 5% or less so that even if one solar cell module 1 fails, an extreme decrease in the amount of power generation can be prevented.

As described above, when the high-rigidity solar cell module 1 of the present invention is applied as the roof panel 23, since the roof panel 23 also serves as the base plate, the roof itself can be viewed as a roof having a power generation function. . Therefore, the operation and effect of the roof 22 having a power generation function will be described next. Although the entire roof 22 is configured by the roof panel 23, since the wooden frames 32 and 70 of the roof panel 23 are provided over the plurality of purlins 21, the side frame 30 functions as a rafter and a reinforcing member. 33 and the high-rigidity solar cell module 1 of the present invention provided in the wooden frame 32 enhances the strength and rigidity of the wooden frames 32 and 70 against twisting and bending, and the reinforcing member 33 and the metal plate 4 are provided. It functions as a base plate, and it becomes possible to sufficiently secure the strength of the roof 22 while omitting the base plate and rafters. Moreover, since the vertical wall portion 5 and the collar portion 6 are formed on the outer peripheral portion of the metal plate 4, the strength and rigidity against twisting and bending can be further enhanced.

Further, the roof base panel 35 without the solar cell panel 2 provided on the outer peripheral portion of the roof panels 23 arranged in parallel,
Since 72 is provided, the roof base panel 3 at the construction site
The dimensions can be easily adjusted by cutting off some of the parts 5, 72, and after the house 20 is constructed, the roof material 25 laid on the roof base panels 35, 72 serves as a passage for movement, and the solar cell Maintenance and inspection work of panel 2 can be performed easily.

Further, as described above, the heat insulating material 3 provided on the lower surface side of the solar cell panel 2 in close contact with the adhesive layer promotes the temperature rise of the solar cell panel 2 and is not used as a solar cell element. When a crystalline silicon-based semiconductor is used, it is possible to effectively prevent a decrease in power generation output of the solar cell panel 2 due to photodegradation. This effect becomes more reliable because the heat insulating material 3 is provided uniformly over the entire surface of the solar cell panel 2 via the adhesive layer.

Further, the heat insulating material 3 prevents heat from entering the house 20 and also prevents heat radiation from the roof 22 and suppresses fluctuations in the indoor temperature due to sunlight, so that the habitability of the house 20 is reduced. It becomes possible to improve. Further, the metal plate 4 can improve the fireproof performance.

Next, a modification in which the structure of the high-rigidity solar cell module 1 (roof panel 23) is partially changed will be described. The same members as those in the above-described embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. (1) A heat insulating material 3 such as the roof panel 90 shown in FIG.
Instead of the metal plate 4 on the back side, a single metal plate 4A is provided on the back side of the solar cell panel 2 via an adhesive layer, and the back side of this metal plate 4A is also waterproofed via an adhesive layer. Sheet 3
The heat insulating material 3 may be integrated with the heat insulating material 3 provided in a laminated manner with the heat insulating material 3 sandwiched therebetween. In this case, it is also possible to provide the vertical wall portion 5A extending along the side surface of the solar cell panel 2 on the outer peripheral portion of the metal plate 4A.

In this roof panel 90, the roof panel 23
Since the same operation and effect are obtained, and the metal plate 4A is provided in close contact with the back surface of the solar cell panel 2,
In terms of fireproof performance, especially fire caused by flying (fire)
Can be effectively prevented. Further, since the temperature of the solar cell panel 2 becomes uniform due to the entire surface adhesion due to the existence of the adhesive layer and the heat transfer of the metal plate 4A, it is possible to prevent a local decrease in the power generation output of the solar cell panel 2 due to the light deterioration. Is possible.

(2) Like the roof panel 90A shown in FIG. 24, the heat insulating material 3 is arranged so as to be one step lower than the upper surfaces of the wooden frames 32 and 70, and the metal plate 4B is provided on the heat insulating material 3 with an adhesive layer. And the vertical wall portion 5A extending upward along the inner side surface of the wooden frame bodies 32, 70 on the outer peripheral portion of the metal plate 4B and the upper end portion of the vertical wall portion 5A from the upper surface side of the wooden frame bodies 32, 70. And a flange portion 6A extending to the upper surface of the metal plate 4B, and the waterproof sheet 36 is attached to the upper surface of the metal plate 4B via an adhesive layer, and the outer peripheral portion of the waterproof sheet 36 is extended along the side surfaces of the wooden frames 32 and 70. Then, the solar cell panel 2 may be attached to the wooden frame bodies 32 and 70, and the solar cell panel 2 may be positioned inside the metal plate 4B with the waterproof sheet 36 interposed therebetween via the adhesive layer. Reference numeral 91 represents a cover crow for preventing damage to the solar cell panel 2 and the like.

(3) As shown in FIG. 25, the heat insulating material 3 has a two-layer structure of a first heat insulating material 3A and a second heat insulating material 3B, and the first heat insulating material 3A is provided on the lower surface of the solar cell panel 2. The two heat insulating materials 3A and 3B are adhered to each other by an adhesive layer, and the two heat insulating materials 3A and 3B are adhered to each other by an adhesive layer while the waterproof sheet 36 is interposed between the two heat insulating materials 3A and 3B. Is formed with a passage 92 extending in the front-rear direction, the output line 15 from the solar cell panel 2 is arranged in the passage 92 above the waterproof sheet 36, and the output line 15 is led out from the upper end portion or the lower end portion of the wooden frame 32. You may let me. With this structure, it is not necessary to form an insertion hole for the output line 15 in the waterproof sheet 36, and the waterproof property can be further improved. Further, the heat insulating material 3B and the metal plate 4 are adhered by an adhesive layer. As described above, the high-rigidity solar cell module 1 in this example includes the solar cell panel 2, the two heat insulating materials 3A and 3B, and the waterproof sheet 36.
And the metal plate 4 is integrated via an adhesive layer.

In this embodiment, the wooden frame 32 is attached to the solar cell module 1, but it is also possible to attach a metal frame such as an aluminum alloy or a concrete frame. .

[0062]

According to the high-rigidity solar cell module of the first aspect, the solar cell panel, the heat insulating material provided on the back side of the solar cell panel, and the flat plate material having rigidity are integrated through the adhesive layers. ing. Therefore, for example, even when an external force in the twisting direction is applied, since each interface is firmly adhered by the adhesive layer, a gap is not formed, and the solar cell panel, the heat insulating material, and the rigidity are effectively provided. Since it functions as a single plate having a thickness in which flat plate members are laminated, the strength and rigidity of the solar cell module are greatly improved.
Therefore, when installed on the roof, when the wind blows through the surface of the solar cell module, there is no concern that the solar cell panel will peel off due to the negative pressure acting in the direction of peeling off the solar cell module. Even if a large external force is applied during installation and transportation, the product will not be deformed and will be of high quality. Furthermore, since there is a plate material such as a metal plate, and because it is integrated via an adhesive layer, it is possible to secure sufficient waterproof performance against intrusion of rainwater, etc., and it is installed on the roof with a structure embedded in the base plate. Even if it does, sufficient long-term reliability can be secured. This is because the plate material and the adhesive layer function as a waterproof layer. However, as described in the embodiments, by using a separate waterproof sheet, it is possible to further improve waterproofness.
Further, since the adhesive layer functions as a protective layer of the solar cell element, the filler and the back sheet can be omitted as the amorphous silicon solar cell panel, and the cost can be reduced. Further, since the heat insulating material is provided on the back surface side of the solar cell panel, heat dissipation from the back surface side of the solar cell panel is prevented, and the temperature rise of the solar cell panel is promoted. As a result, the solar cell element can be heated to a high temperature of 80 ° C. to 90 ° C. or higher, and the photodegradation phenomenon peculiar to amorphous silicon can be reduced. As a result, excellent long-term reliability in output characteristics can be realized. . Since the entire back surface of the solar cell panel and the adhesive layer are in close contact with each other, the temperature distribution in the solar cell panel is also uniform, and the effect of reducing the variation in the deterioration rate in the solar cell panel is also obtained. To be

In the high-rigidity solar cell module according to claim 2, since the adhesive layer is a heat insulating material having adhesiveness, the same material as the heat insulating material is used, so that the space between the adhesive layer and the heat insulating material is Since different materials are not bonded to each other, the effect of further improving the adhesive force can be obtained in addition to the effect according to claim 1. Therefore, the rigidity becomes higher.

In the high-rigidity solar cell module according to the third aspect, the solar cell panel and the substantially corrugated plate material having rigidity provided on the back side of the solar cell panel have adhesiveness with which the recesses of the plate material are filled. It is integrated by the heat insulating material,
In addition to the above effects, the substantially corrugated plate shape can further improve the rigidity. In addition, at the installation site such as on the roof, first install a substantially corrugated plate material at a predetermined location on the roof,
Place the solar cell panel on it, and install a synthetic resin with adhesive properties such as urethane foam as a heat insulating material in the state before curing in the gap between the solar cell panel and the plate material, that is, the concave part of the plate material, so install The solar cell module of the present invention can be manufactured in the field. This reduces the transportation cost because the volume is smaller than when transported to the installation site of the solar cell module as a finished product, and when constructing a new roof such as a new house, the construction schedule Flexibility increases, resulting in a significant reduction in total cost.

In the high-rigidity solar cell module according to claim 4, since the heat insulating material also serves as the adhesive layer, the heat insulating material can be filled at the installation site of the solar cell. And the number of steps can be further reduced. In addition, the flexibility for the construction schedule can be secured, and the total cost including the construction cost can be reduced.

When a non-combustible material such as a metal plate is used as the plate material as in the high-rigidity solar cell module according to claim 5, even if it is used as a roof material or a wall material, the fire spreads to the neighborhood or the fire from the neighborhood burns. Since it can be prevented, it is also excellent in fire prevention.

Further, when the high-rigidity solar cell module of the present invention is incorporated into a rectangular frame body to form a roof panel, a metal plate is used as a plate material in combination with the plate material, and a frame is provided around the outer periphery thereof. A brim portion that covers the entire upper surface of the body is formed, a reinforcing member that supports the solar cell module from below is provided in the frame body in a cross shape, and the reinforcing member is a plate-like member that closes the frame body. Specific examples can be given, and by combining these, the rigidity and the torsion resistance can be further improved.

When a plurality of roof panels using the high-rigidity solar cell module of the present invention are embedded in the base plate, the solar cell panel and the heat insulating material provided on the back side thereof and a flat plate having rigidity When integrating the plate materials of (1) with an adhesive layer, a waterproof sheet having a size such that the outer edge portion can extend to the outer surface of the frame is provided on the back surface of the solar cell panel, and thus the waterproof sheet is provided between the butted frames. Can be interposed, the waterproof performance is further improved. In addition, even when the solar cell panel and the substantially corrugated plate material having rigidity provided on the back side thereof are integrated by the heat insulating material having adhesiveness filled in the concave portion of the plate material, The same waterproof sheet may be interposed and the solar cell module may be integrated.

As described above, the high-rigidity solar cell module of the present invention has a high rigidity by itself, and even when a roof panel or a wall panel is formed, the rigidity is further improved by combining it with a frame. It is also possible to reduce photo-deterioration and improve workability, further improving the conventional problems, improving the rigidity of the solar cell module that can withstand wind pressure and other external forces, and improving the amorphous silicon-based solar power. It is an extremely excellent product that can satisfy both the improvement of the reliability of the battery panel and the improvement of the fire protection performance.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a structural example of a solar cell module of the present invention.

FIG. 2 is a cross-sectional view showing a structural example of a solar cell module of the present invention.

FIG. 3 is a sectional view showing a structural example of a solar cell module of the present invention.

FIG. 4 is a cross-sectional view showing a structural example of a solar cell module of the present invention.

FIG. 5 is a sectional view showing a structural example of a solar cell module of the present invention.

FIG. 6 is a sectional view showing a structural example of a solar cell panel.

FIG. 7 is a cross-sectional view showing a structural example of a solar cell module of the present invention.

8A and 8B are cross-sectional views showing a structural example of the solar cell module of the present invention, where FIG. 8A shows a vertical wall portion formed downward from the upper metal plate, and FIG. 8B shows a lower metal plate. Formed vertical wall part in the upward direction

[Figure 9] Sectional view near the roof of a house

[Figure 10] Plan view of the roof

FIG. 11 is a plan view of the main part of the roof panel.

12A is a plan view of the wooden frame, and FIG. 12B is a side view of the wooden frame.

13 is a sectional view taken along line XX of FIG.

14 is a sectional view taken along line XI-XI of FIG.

FIG. 15 is a sectional view taken along line XII-XII in FIG.

FIG. 16 is a sectional view of the vicinity of the side holding means.

FIG. 17 is a cross-sectional view near the front holding means.

FIG. 18 is a sectional view of the vicinity of the rear holding means.

FIG. 19 (a) is a plan view of a wooden frame arranged on the right side of the roof, and FIG. 19 (b) is a side view of the same.

20 is a sectional view taken along line XVII-XVI of FIG.

FIG. 21 is a cross-sectional view of the roof panel disposed on the right side of the roof in the vicinity of the side holding means.

FIG. 22 is a perspective view of the main part near the right rear side of the roof panel.

FIG. 23 is a cross-sectional view of a roof panel of another structure in the vicinity of a side holding means.

FIG. 24 is a cross-sectional view of a roof panel of another structure in the vicinity of a side holding means.

FIG. 25 is a sectional view of a roof panel having another structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Solar cell module 2 Solar cell panel 2a Solar cell module back surface 4a Recess 4b Top part B Adhesive layer 3 Heat insulating material 4 Metal plate 5 Vertical wall part 6 Collar part 10 Light transmissive substrate 11 Solar cell element layer 12 Filler 13 Back sheet 14 Terminal Box 15 Output line 1A Architectural exterior panel 5A Vertical wall part 5B Vertical wall part 20 House 21 Purlin 22 Roof 23 Roof panel 23A Roof panel 23B Roof panel 23C Roof panel 24 Skylight 25 Roofing material 30 Side frame 31 Connecting frame 32 Wooden frame 32a Step portion 33 Reinforcing member 34 Cushion material 35 Roof base panel 36 Waterproof sheet 37 Sealing material 40 Front holding means 41 Rear holding means 42 Side holding means 45 Side receiving bracket 46 Side fixing bracket 46a Arm portion 47 Sealing material 48 Seal material 49 Seal material 50 Connecting plate 51 Cover member 55 Front receiving metal fitting 56 Front fixing metal fitting 56a Arm portion 56b Extended portion 57 Seal material 60 Rear receiving metal fitting 61 Rear fixing metal fitting 61a Arm portion 62 Sealing material 63 Rear cover member 63a Extended portion 70 Wooden frame Body 70a Step portion 71 Center frame 72 Roof base panel 75 Side holding means 76 Side receiving bracket 77 Side fixing metal fitting 77a Arm portion 78 Sealing material 79 Side cover member 79a Extended portion 79b Extended portion 80 End cap 81 End Cap 82 Waterproof tape 90 Roof panel 4A Metal plate 90A Roof panel 4B Metal plate 91 Cover crow

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication H01L 31/042 H01L 31/04 R

Claims (5)

[Claims] 1. A high-rigidity solar characterized in that a single or a plurality of solar cell panels, at least a heat insulating material provided on the back side thereof, and a flat plate material are integrated through an adhesive layer. Battery module. 2. The adhesive layer is a heat insulating material having adhesiveness,
The high-rigidity solar cell module according to claim 1. 3. A single or a plurality of solar cell panels and at least a substantially corrugated plate material provided on the back side thereof are integrated by an adhesive heat insulating material filled in a recess of the plate material. A high-rigidity solar cell module characterized by. 4. A high-rigidity solar cell module characterized in that a single or a plurality of solar cell panels and a flat plate-like material provided on the back side thereof are integrated by a heat insulating material having an adhesive property. . 5. A metal plate is used as the plate material.
The high-rigidity solar cell module according to any one of to 4.