JP2000179092A - Roof tile with solar cell - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability by mounting a solar battery at a recessed part formed on the surface of a plain tile base material, and affixing a non-slip seal at a protruding part formed on its rear side. SOLUTION: In a roof tile with a solar battery, a solar battery is mounted inside a recessed part formed on the front side of a plain tile base material 1 so that the surface of the surrounding edge of the recessed part may be flush with that of the solar battery. The base material 1, with protruding stripes and recessed stripes formed one after the other by turns on its rear side, is formed with a protruding part affixed with a non-slip seal 5 on the protruding stripes. In construction, roof tiles 3 are fixed one after another starting an eaves end toward a ridge part by driving nails into a sheathing roof board member in the vicinity of the overlapped edge part where a roof tile 3 on the higher side is overlaid on the upper end part and the side end part of a roof tile 3 on the lower side. It is thus possible to prevent the surface of the solar battery from being damaged when roof tiles are stacked or piled up at the time of their construction, to fix roof tiles easily without need for a large space on a roof, and to leave them alone without need for removing seals at the time of construction and thereafter.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a roof tile with a solar cell.

[0002]

2. Description of the Related Art Conventionally, solar cells have been installed on the roof of a house or the like, and various methods of applying the solar cells to save the power consumption by supplementing the original power consumption by using the energy of the solar rays. Proposed. For example, JP-A-57-6
JP-A-8454 and JP-A-4-28524 propose a roof tile with a solar cell in which a solar cell is built in a roof base material.

[0003]

However, since the roof tile with solar cells can be laid by the same method as the case of the original roof tile, the labor required for the construction is the same as that of the conventional roof tile, and it is simple and inexpensive. It has the advantage of being able to be constructed, but when laying roof tiles with solar cells, the surface of the solar cells and the back of the tiles are rubbed when the tiles are stacked in the same way as conventional flat tiles to secure temporary space for the tiles. There is a possibility that the surface of the solar cell may be damaged, the power generation efficiency may be reduced, and the strength of the solar cell may be reduced or damaged.

[0004] Further, since both the back surface of the tile and the surface of the solar cell are made of a hard material, when they are stacked on an inclined place such as on a roof, they are very slippery and the tile is easily dropped. It is dangerous. Therefore, in order to prevent this, measures such as providing a cushioning material between the backside of the tile and the solar cell during stacking, putting a resinous protective sheet on the surface of the solar cell, and peeling them off during or after construction However, in any case, a large amount of waste material is generated on a roof with poor workability, and wasteful work of collecting the waste material occurs, which is very troublesome.

[0005] The present invention solves the above-mentioned problems, eliminates wasteful work such as peeling off cushioning materials, sheets, and the like on the roof, and can be used when roof tiles with solar cells are stacked or when roofing work is performed. In addition, the surface of the solar cell is not damaged, and during construction,
It is an object of the present invention to provide a roof tile with a solar cell in which the tile does not slide off the roof.

[0006]

According to a first aspect of the present invention, a roof tile with a solar cell (hereinafter referred to as "the present invention 1") has a solar cell mounted in a concave portion provided on a surface side of a flat tile base material. It is a roof tile with a solar cell provided with a convex portion on the back surface side, and a non-slip seal is attached to the convex portion.

[0007] The material of the flat tile base material used in the present invention 1 is
There is no particular limitation, for example, a cured product of an inorganic material such as cement, a metal material such as aluminum or steel, an organic material such as polycarbonate or fiber-reinforced plastic,
Alternatively, a material made of a composite material of these materials may be used.

The solar cell used in the present invention 1 is not particularly limited. For example, the solar cell is made of a material such as a silicon-based semiconductor or a compound-based semiconductor, and includes a monocrystalline or polycrystalline crystalline semiconductor or an amorphous semiconductor. Can be

[0009] Among these solar cells, a solar cell using a crystalline silicon semiconductor is particularly suitable for outdoor use such as a roof tile with a solar cell due to its high reliability and energy conversion efficiency.

[0010] At present, amorphous silicon solar cells are preferred in terms of low cost, although energy conversion efficiency is slightly lower than solar cells using crystalline silicon semiconductors at present. As the above-mentioned solar cell, a module in which a number of elements composed of cells having a stacked structure of a crystalline semiconductor and an amorphous semiconductor are integrated on a single substrate may be used, or a large-area single amorphous silicon solar cell may be used. A module composed of elements may be used.

Further, these solar cells may have a surface protective material having high transparency such as ordinary or tempered glass or an acrylic resin plate laminated on the surface thereof.

The above-mentioned solar cell is disposed in a concave portion provided on the surface of a flat tile base material. The degree of fitting of the solar cell into the concave portion is not particularly limited. As shown in FIG. 1, the surface of the flat tile base material, that is, the outer peripheral surface of the concave portion may be disposed so as to be flush with the surface of the solar cell. The surface of the battery may be provided with a slight step. The degree of fitting of the solar cell into the recess is
From the viewpoint of waterproof treatment or the like, the surface of the solar cell is higher than the outer peripheral surface of the concave portion or is preferably at least flush, and is preferably flush from the viewpoint of maintenance of the roof surface including the solar cell. .

The method for fixing the solar cell to the flat tile base material is not particularly limited, either, but a screw, screw or architectural anchor may be fixed with a resin or metal fixture having an appropriate shape. It is preferable to use an appropriate fastening material such as a fastener or a fastener for building, and firmly fix it so as not to penetrate the back surface of the flat tile base material. Further, the solar cell and the flat tile base material may be fixed using an adhesive or the like.

According to the first aspect of the present invention, when the stacked roof tiles are used for use, the projections provided on the back surface side of the flat tile base material can be easily taken out of the roof tiles to be used from the roof tile immediately below. Preferably, three or more tiles are provided for each tile, the height of which is adjusted so as not to be inclined even when several tens of tiles are stacked. This projection is usually manufactured integrally with the roof tile.

In the first aspect of the present invention, the material of the non-slip seal attached to the convex portion is a convex portion provided on the back surface side of the base material. The solar cell is not particularly limited as long as it does not damage the solar cell and does not relatively slide between them. For example, materials such as butyl rubber, chloroprene acrylo rubber, ethylene propylene rubber, silicone rubber, and fluorine rubber Is mentioned.

The above-mentioned seal may be attached to a projection which may come into contact with a solar cell provided on another flat tile when it is stacked or when a flat tile is laid on a roof. May not be provided on the projections of

If the thickness of the seal is too small, the strength of the sheet itself becomes extremely weak, and the seal may be broken when tiles are stacked, and as a result, the surface of the solar cell may be damaged. On the other hand, if the thickness is too large, it is difficult to follow the protrusions provided on the tile side in advance, and there is a problem that the film is easily peeled off.

A roof tile with a solar cell according to a second aspect (hereinafter referred to as "the present invention 2") is a roof tile with a solar cell in which a solar cell is mounted in a concave portion provided on the surface side of a flat tile base material. And a resin protrusion is attached to the back surface side.

The roof tile with a solar cell according to the second aspect of the present invention is different from the roof tile with a solar cell according to the second aspect of the present invention except that a resin-made convex portion is provided instead of the convex portion provided on the back side of the tile to which the seal is attached. 1
Is the same as

The material of the resin protrusion used in the present invention 2 is the same as that used for the seal shown in the present invention 1 as it is. Also, the number of resin protrusions provided is the same as the number of protrusions of the first aspect of the present invention. Examples of the shape of the resin protrusion include shapes (7a to 7d) as shown in FIGS. 7 to 10, but are not particularly limited thereto.

The size of the resin protrusion is not particularly limited. However, if the height is too low, the function as a cushioning material is reduced, so that the height is preferably 1 mm or more. In addition, when the roof tiles are laid, the space 8
If a protrusion having a height exceeding the range that can be accommodated in the space is not provided (see FIG. 3), tiles cannot be roofed. Therefore, the height of the protrusion member 7 must be within the above-described space 8.

(Function) The roof tile with a solar cell of the present invention 1 is a roof with a solar cell in which a solar cell is mounted in a concave portion provided on the front surface side of a flat tile base material and a convex portion is provided on the back surface side. Since the tile is a tile and a non-slip seal is affixed to the projection, even if the tile is stacked, or laid, the projection does not damage the solar cell. . Also, the tiles do not slide off the roof during the roofing work. In addition, the tiles can be kept horizontal by the protrusions so that the tiles are not inclined even when piled up in large quantities.

The roof tile with a solar cell according to the second aspect of the present invention is a roof tile with a solar cell in which a solar cell is mounted in a concave portion provided on a front surface side of a flat tile base material, and a resin-made convex portion on a back surface side. Has the same action as that of the first aspect of the present invention.

[0024]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows the present invention 1 or 2
FIG. 2 is a perspective view showing an example of a roof tile with a solar cell of FIG.
Is a perspective view showing a state in which the roof tile with solar cells of FIG. 1 is laid on a roof base material, and FIG. 3 is a cross-sectional view of the roof tile with solar cells of FIG. 2 in the roof flow direction.

In FIG. 1, 1 is a flat tile base material, and 2 is a solar cell. As shown in FIGS. 1 and 2, the roof tile 3 with a solar cell of the present invention 1 or 2 is provided with a concave portion 13 on the front side of the flat tile base material 1, and the solar cell 2 is mounted in the concave portion 13. The surface of the flat tile base material 1, that is, the outer peripheral surface of the recess 13 and the surface of the solar cell 2 are flush with each other.

As shown in FIGS. 2 and 3, the roof tiles with solar cells are arranged such that the roof tiles with solar cells above the water are located on the upper edge and side of the roof tiles with solar cells below the water. In the vicinity of the peripheral edge part of which the edge part partially overlaps, it is nailed to a roof base material such as a base plate 9 or the like and is sequentially laid. For nailing the roof tile 3 with a solar cell, a nail hole 14 including a nailing pedestal and a through hole is provided near the periphery of the flat tile base material 1. Depending on the width of the roof tile 3, for example, a plurality of the nail holes 14 are provided in the width direction of the roof tile 3 at intervals of 50 to 300 mm. And the nail head and the base plate 9 fixed by the fixing tool 11.
During this time, the roof tile with solar cell 3 is firmly fixed.

On the back side of the flat tile base material 1, a resin convex portion 7 is provided.
(In the present invention 1, a protrusion to which a non-slip seal is attached) is provided, and an output cord 12 is wired to the solar cell 2. In addition, the solar cell 2 does not need to be provided on all the tiles, and as shown in FIG. 2, a part of the conventional tile 4 may be laid.

FIG. 4 is a perspective view of the roof tile with solar cells of the present invention 1 as viewed from the back, and FIG. 5 is a sectional view of the roof tile with solar cells. As shown in FIGS. 4 and 5, the flat tile base material 1 of the roof tile 3 with a solar cell is provided with convex and concave stripes alternately, and a non-slip seal 5 is attached to the convex stripe. The projection 6 is provided.

FIG. 6 is a sectional view showing the back surface of the roof tile with a solar cell according to the second embodiment of the present invention. As shown in FIG. 6, a resin protrusion 7 is provided on the back surface of the flat tile base material 1 of the roof tile with solar cells of the present invention 2. As described above, the shape of the resin protrusion 7 may be, for example, the shape shown in FIGS. 7A to 7D in FIGS.

As described above, when the convex portion 6 to which the non-slip seal 5 is adhered or the resin convex portion 7 is installed on the back surface of the flat roof tile 1, the tiles can be stacked and stacked. 2 is not damaged, and the construction work can be performed easily without having to take up a large space on the roof. Also, at the time of construction,
It is not necessary to remove them after the construction, and the construction may be left as it is, as shown in FIG. Of course, after construction, the anti-slip seal 5 and the resin protrusion 6 do not have any purpose. Therefore, there is no problem even if the deterioration occurs. Since it is only necessary to have the functions of preventing scratches and preventing slippage, a relatively durable and relatively cost-effective material may be selected.

[0031]

The roof tiles with solar cells of the present inventions 1 and 2 are:
Since it has been made as described above, cushioning material on the roof,
Eliminate unnecessary work such as peeling off sheets, etc., even when stacking roof tiles with solar cells, or during roofing work, the surface of the solar cell is not damaged, and It does not slide off the roof.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a roof tile with a solar cell of the present invention 1 or 2.

FIG. 2 is a perspective view showing a state in which the roof tile with a solar cell of FIG. 1 is laid on a roof base material.

FIG. 3 is a cross-sectional view of the roof tile with a solar cell of FIG. 2 in a roof flow direction.

FIG. 4 is a perspective view of a roof tile with a solar cell according to the first embodiment of the present invention as viewed from the back surface.

FIG. 5 is a cross-sectional view of the roof tile with solar cell of the first invention.

FIG. 6 is a cross-sectional view showing the back surface of the roof tile with a solar cell of the second invention.

FIG. 7 is a perspective view showing an example of the shape of a resin protrusion.

FIG. 8 is a perspective view showing another example of the shape of the resin protrusion.

FIG. 9 is a perspective view showing still another example of the shape of the resin protrusion.

FIG. 10 is a perspective view showing still another example of the shape of the resin protrusion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flat tile base material 2 Solar cell 3 Roof tile with solar cell 5 Convex part 6 Non-slip seal 7 Resin convex part 13 Concave part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E108 KK04 LL01 MM01 NN07 5F051 BA03 BA18 EA01 EA17 JA02 JA08 JA09

Claims (2)

[Claims] 1. A roof tile with a solar cell in which a solar cell is mounted in a concave portion provided on the front side of a flat tile base material and a convex portion is provided on the back side, wherein the convex portion has a non-slip surface. A roof tile with a solar cell, characterized by having a seal attached thereto. 2. A roof tile with a solar cell in which a solar cell is mounted in a concave portion provided on a front surface side of a flat tile base material, wherein a resin-made convex portion is adhered to a back surface side. Roof tiles with solar cells.