JPH08144439A - Structure of solar cell tile - Google Patents

Abstract

PURPOSE: To provide a solar cell tile which supports a solar cell without using a rack and is excellent in durability and workability. CONSTITUTION: There are provided a cement tile substrate 2 and a solar cell 4 which is supported on a frame where the cement tile substrate 2 is fixed with a roof surface by means of a nail 5 having a female screw on the head and a gasket 52. The frame 3 of the solar cell 4 is fixed with the head of this nail by joining a screw 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar cell roof tile structure. More specifically, the present invention relates to a structure of a new solar cell roof tile, in which a solar cell can be installed on a roof surface without being supported by a gantry, durability, workability, etc. are good and the cost is low. .

[0002]

2. Description of the Related Art Conventionally, in order to use clean solar energy, it has been proposed to arrange various types of solar cell panels on the roof of a house, etc. It is also being done. However, this conventional solar cell panel has a drawback that it is necessary to support the solar cell on a gantry, and its arrangement on the roof surface is inevitably unstable, and the appearance of the roof is not preferable. .

From such a viewpoint, attempts have been made to incorporate a solar cell into a roof tile and use the solar cell in a stable state without damaging the appearance of the roof.
For example, as shown in FIG. 11, a solar cell roof tile (a) in which a solar cell (c) is incorporated in a roof tile board (a) made of cement or resin and an exposed portion (d) is located in front of the solar cell roof tile (a).
Is proposed. As shown in FIG. 12, this solar cell roof tile (a) is considered so that it can be arranged on the roof surface in combination with a normal flat roof tile (e).

[0004]

However, the above-mentioned conventionally proposed solar cell roof tile (a) has not necessarily been put into practical use. The reason for this is to realize a solar cell roof tile that is durable against changes in temperature throughout the seasons and wind and rain that can be sprayed, and that can be easily constructed and maintained at low cost. In terms of what means should be used to fix the solar cell in the roof tile, there is no prospect for commercialization.

For example, as described above, fixing with an adhesive is considered for fixing the solar cell (c) to the roof substrate (a) by incorporating it. There is a problem that the detachment of the battery is unavoidable and dangerous, and the work of adhering the battery is troublesome and the process control is difficult. Further, there is a problem that the entire roof tile must be replaced when the solar cell is destroyed, and there are restrictions in achieving cost reduction in these points.

Further, it is conceivable to use metal fittings instead of the adhesive, but the actual situation has not been obtained yet. Further, how to realize the wiring from the solar cell as a lower cost roof tile structure has been a practical problem. Therefore, the present invention is capable of solving the problems of the prior art as described above and advancing the idea of a solar cell roof tile, realizing good installation stability and durability, simple, and low cost. The purpose is to provide a new structure for solar cell roof tiles that can be easily installed and maintained.

[0007]

As a solution to the above problems, the present invention provides a waterproof packing having a cement tile substrate and a solar cell supported by a frame body, and having a female screw on the head. The structure of the solar cell tile is characterized in that the cement tile base plate is fixed to the roof surface by nails, and the frame body of the solar cell is disposed and fixed to the head of the nail by screw connection to the female screw part ( Claim 1) is provided.

Further, according to the present invention, in the above structure, the solar cell is arranged on the stepped portion of the cement tile substrate (claim 2), and the wiring from the solar cell is frame side or solar. It should be pulled out from between the back surface of the battery and the cement tile board and connected to the load (claim 3).
Is also provided as that aspect.

[0009]

The structure of the present invention described above does not require a pedestal for fixing the solar cell unlike the conventional solar cell panel, and allows the solar cell to be attached to the cement tile as the base, so that the installation is stable. Therefore, the solar cell can be used at a lower cost. The roof can be mixed with the existing flat roof tiles, and solar cells can be installed on the roof without any discomfort.

Moreover, since the solar cell is fixed with the above structure without using an adhesive, a solar cell roof tile having high reliability, superior durability, and easy construction and maintenance can be realized. Wiring can be easily pulled out from the solar cell. Examples will be shown below to describe the structure of the present invention in more detail.

[0011]

1 and 2 of the accompanying drawings are a perspective view of a solar cell roof tile showing an example of the present invention and a cross-sectional view as an arrangement state on a roof surface. In this example, the solar roof tile (1) includes a cement roof tile substrate (2) and a frame body (3).
The solar cell (4) supported on the cement roof substrate (2) is attached to the roof surface (6) by a nail (5) with a waterproof packing (52) having a female screw portion (51) on the head. )
It is attached and fixed to the female screw part (5) of the head of this nail (5).
1) directly on the frame body (3) of the solar cell (4)
Are fixed by screws (7).

Then, the back surface of the solar cell (4) and the cement tile board (2) on which the solar cell (4) is arranged are used by using the nail (5) with the waterproof packing (52) having the female screw portion (51) on the head. A gap (8) is formed between the step (21) and the step (21). Since the gap (8) serves as a passage for draining rainwater, the waterproof property is good. In order for the gap (8) to become a drainage passage, the gap should be about 5 mm or more so as not to be affected by the surface tension of water.

Further, the gap (8) has a character as an air layer and acts so as to suppress the temperature rise of the small roof and the solar cell (4). Since the solar cell (4) is not directly bonded to the cement roof tile substrate (2), the roof tile is cracked due to thermal expansion and contraction of the solar cell (4) and the glass plate to be arranged on the surface of the solar cell (4). Inconveniences such as damage to the can be suppressed. Moreover, the construction becomes simple and the cost can be reduced.

The wiring from the solar cell (4) can be connected to a load by drawing it from the side of the frame body (3) or from the gap (8), and the cement tile board ( 2) etc. need not be applied. Further, as is clear from FIGS. 1 and 2, the solar cell (4) is
Since it can be replaced independently by simply releasing the screw (7),
If the solar cell is damaged, only this should be replaced. Therefore, maintenance is easy.

Of course, since no adhesive is used to fix the solar cell (4), the reliability is high and the durability is excellent.
Moreover, the structure is easy to manage. 3 and 4
[Fig. 3] is a perspective view showing another example of the present invention and a cross-sectional view showing an arrangement state on a roof surface. In this example, the support metal fitting (9) is attached to the female screw portion (51) of the head of the nail (5).
Is fixed by screws (10), and this support fitting (9)
The solar cell (4) frame body (3) is screwed (1
It is supported and fixed in 1).

In the case of this example, in addition to the effects similar to those shown in FIGS. 1 and 2, it is necessary to fix the nails (5) directly below the frame body (3) by using the support fittings (9). Since it is not present, the inconvenience of breaking the roof tile due to the fixing at the end of the cement roof substrate (2) can be avoided. This is because the cement tile substrate (2) can be fixed with the nails (5) even in the lower exposed portion of the solar cell (4).

FIGS. 5 and 6 show still another example. In this case, the cement tile substrate (2) is provided with convex step portions (22) at a plurality of locations in the flow direction, and the concave portion (23) is provided immediately below the back surface thereof.
Is provided. The frame body (3) of the solar cell (4) is supported on the convex step portion (22). The frame body (3) has a hanging portion (31) at its end so as to cover the step portion (22). Also in this case, a gap (12) is formed between the back surface of the solar cell (4) and the cement roof tile substrate (2), and the gap (12) improves the waterproofness by drainage, and the solar cell ( Avoid the inconvenience caused by 4) thermal expansion and contraction. It also shows the effect of controlling the temperature rise of the air layer.

The frame body (4) may be fixed to the roof surface together with the cement tile board (2) by a nail, but like the above-mentioned example, the nail (5) with a waterproof packing having a female screw portion on the head portion. And the frame body (3) fixing screws (7). Further, in the case of this example, the arrangement of the convex step portion (22) makes it possible to cope with not only the roofing as shown in FIG. 7 but also the staggering as shown in FIG.

The wiring from the solar cell (4) can be led out from the frame side as in the above example or from the gap (12) on the back surface of the solar cell (4). In the above example, in order to increase the wind resistance when the solar cell tile (1) is installed on the roof surface, a plurality of solar cell tiles (1 The frame body (3) may be simultaneously connected. in this case,
For example, as illustrated in FIG. 10, a staircase-shaped metal fitting (13)
It is conceivable to simply fix the protrusion (32) on the frame body (3) into the deflection hole (131) provided in the frame by means such as engaging it.

Of course, the present invention is not limited to the above examples, and it is needless to say that various aspects can be made in the details.

[0021]

As described in detail above, according to the structure of the present invention, a solar cell at a low cost can be used by using a cement tile substrate in a more stable installation state without using a pedestal like a conventional panel. The roof tile can be realized.
The double structure through the gap improves waterproofness, avoids inconvenience caused by thermal expansion and contraction of the solar cell, and suppresses temperature rise. Moreover, it is possible to replace only the solar cell without replacing the entire roof tile.

Also, a reliable and durable structure is provided without using an adhesive. Of course, the appearance of the roof surface is not impaired.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a roof installation state of the example of FIG.

FIG. 3 is a perspective view showing another embodiment.

4 is a cross-sectional view illustrating a roof installation state of the example of FIG.

FIG. 5 is a perspective view showing still another embodiment.

FIG. 6 is a cross-sectional view showing a roof installation state of the example of FIG.

FIG. 7 is a perspective view showing a lined arrangement of convex step portions in the example of FIG.

FIG. 8 is a perspective view showing another zigzag-roof arrangement from FIG.

FIG. 9 is a perspective view illustrating an example of a wind resistant structure using a step metal fitting.

FIG. 10 is a perspective view of an essential part showing an example of mounting the metal fitting of FIG. 9;

FIG. 11 is a perspective view showing a conventionally proposed solar cell roof tile.

FIG. 12 is a perspective view showing the roof arrangement of the example of FIG. 11.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Solar cell tile 2 Cement tile substrate 21 Step part 22 Convex step part 23 Concave part 3 Frame body 31 Hanging part 32 Protrusion part 4 Solar cell 5 Nail 51 Female screw part 52 Waterproof packing 6 Roof surface 7 Screw 8 Gap 9 Supporting metal fitting 10 Screw 11 Screw 12 Gap 13 Step metal fitting 131 Deflection hole

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeki Takeda 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd.

Claims (3)

[Claims] 1. A cement tile substrate and a solar cell supported by a frame body are provided, and the cement tile substrate is fixed to a roof surface by a nail with waterproof packing having a female screw portion at the head, and the head of the nail. A solar cell roof structure, in which a frame body of the solar cell is disposed and fixed to the portion by screw joining to a female screw portion. 2. The structure of the solar cell roof tile according to claim 1, wherein the solar cell is disposed on the stepped portion of the cement roof tile substrate. 3. The structure of the solar cell tile according to claim 1, wherein the wiring from the solar cell is drawn out between the frame side or the back surface of the solar cell and the cement tile substrate and connected to the load.