JP2000352155A - Roof for solar cell module - Google Patents

Abstract

(57) [Summary] [Problem] A solar cell module can be attached to and detached from a roof tile body.
It is an object of the present invention to provide a highly reliable solar cell module roof tile which can easily exchange sheets and can firmly fix the solar cell module to the roof tile body. A tile main body, a concave portion provided as a mounting portion for mounting a solar cell module provided with a terminal box on a lower surface of the tile main body, and the terminal box.
Bolt 9 that is provided in the roof body 1 and penetrates the concave portion 2 of the tile body 1
And a nut 11 screwed to the bolt 9 at a lower portion of the concave portion 2, and a fastening member for fixing the solar cell module 6 to the tile body 1 with the bolt 9 and the nut 11 is provided. I do.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tile for a solar cell module in which a solar cell module is mounted on a tile used as a roof material of a building.

[0002]

2. Description of the Related Art A technique of mounting a solar cell on a tile used as a roof material of a building and converting solar energy into electricity for use is disclosed in Japanese Utility Model Laid-Open No. 62-52610, Japanese Utility Model Application Laid-open No.
148417, Japanese Utility Model Laid-Open No. 4-28524, Japanese Utility Model Laid-Open No. 5-3430, and the like.

In Japanese Utility Model Laid-Open Publication No. 62-52610, a concave portion having a shape suitable for a solar cell is provided on the upper surface of an exterior material for a tile or an outer wall, and the solar cell is mounted in the concave portion.

In Japanese Utility Model Laid-Open No. 1-148417, a solar cell is provided on the lower surface of a flat roof tile, and the lead wires of the solar cell are led out from a portion where a space is formed at both ends of the upper edge of the flat roof. is there.

Japanese Utility Model Laid-Open Publication No. Hei 5-3430 discloses a method in which a solar cell is adhered to the surface of a roof tile, an opaque sheet is peelably adhered to the surface of the solar cell, and the solar cell is protected by the sheet during a roofing operation. It was done.

[0006]

As described above, in the conventional solar cell mounted tile, the solar cell is directly adhered to the tile main body with an adhesive, or a concave portion is provided in the tile main body. A solar cell is adhered to the bottom surface via an adhesive, and a gap between the solar cell and the inner peripheral surface of the concave portion is fixed by filling a caulking material.

However, the adhesive and the caulking material are apt to deteriorate, especially in an environment such as a roof which is exposed to sunlight and becomes high in temperature or is exposed to wind and rain, the deterioration progresses rapidly and cracks are formed. In the case of a problem such that rainwater or the like easily enters and a steep roof is used, there is a possibility that the solar cell may fall from the tile body. In addition, there is also a problem that the photoelectric conversion efficiency is reduced when the caulking material protrudes and adheres to the surface of the solar cell.

Further, the aforementioned Japanese Utility Model Application Laid-Open No. 62-52610 is disclosed.
As disclosed in Japanese Unexamined Patent Publication (Kokai) No. Hei 4-28524 and Japanese Utility Model Application Laid-Open No. 4-28524, a roof is provided with a recess formed on the surface of a tile, and a solar cell is adhered to the recess. Rain water collects at the bottom of the recess, and the collected rain water is heated by solar heat. The solar cell may be expanded and may rise.

Further, in the case where the lead wire of the solar cell is derived from the portion where the space is formed on the back surface of both ends of the upper edge of the flat tile as in Japanese Utility Model Laid-Open No. 1-148417, the wiring work is difficult, Leakage when rainwater enters,
There is a risk of short circuit. Further, even if one tile is to be replaced together with a solar cell, it is a difficult operation to remove several surrounding tiles once. Japanese Utility Model Application Laid-Open No. 5-3430 discloses a structure in which the solar cell may fall off when the adhesive is degraded and the solar cell is separated from the roof tile.

In each of the above publications, the solar cell module is fixed to the roof tile body with an adhesive. Therefore, even if it is attempted to replace one of the solar cell modules due to maintenance inspection or breakage, it is difficult to separate the tile because the tile main body and the solar cell module are integrated, and it is necessary to replace the entire tile main body.

The present invention has been made in view of the above circumstances, and an object of the present invention is to fix a solar cell module to a roof tile body in a detachable manner. An object of the present invention is to provide a highly reliable tile for a solar cell module in which one can be easily replaced and the solar cell module can be easily and reliably fixed to the tile body.

[0012]

In order to achieve the above object, the present invention provides a roof tile body and a mounting portion for mounting a solar cell module provided on the roof tile body and having a terminal box on a lower surface. And a locking member provided in the terminal box, penetrating a mounting portion of the tile body, and a locking member for fixing the solar cell module to the tile body at a lower portion of the mounting portion. On the roof tile.

According to a second aspect of the present invention, there is provided a roof tile body, a mounting portion provided on the roof tile body for mounting a solar cell module provided with a terminal box on a lower surface, and a mounting portion provided on the terminal box for mounting the roof tile body, And a tightening member comprising a bolt and a nut for fixing the solar cell module to the tile body below the mounting portion.

According to a third aspect, the bolt of the fastening member of the second aspect projects downward from the terminal box and penetrates the mounting portion, and the nut is screwed to the bolt at a lower portion of the mounting portion. It is characterized by the following.

According to a fourth aspect of the present invention, the nut of the fastening member according to the second aspect is provided on a terminal box, and a bolt is screwed into the nut from a lower portion of the mounting portion through the mounting portion. I do.

According to the first aspect, when the solar cell module is mounted on the mounting portion of the tile body, the locking member protruding from the terminal box is inserted into the through hole, and at the same time, the lower surface of the solar cell module is mounted on the mounting portion. Be closely related to. Next, it can be locked and fixed by a locking member protruding from a lower portion of the mounting portion.

According to the second aspect, when the solar cell module is mounted on the mounting portion of the roof tile body, the bolt protruding from the terminal box is inserted into the through hole, and at the same time, the lower surface of the solar cell module is in close contact with the mounting portion. Is done. Next, when a nut constituting a tightening member is screwed into a screw portion of a bolt projecting from a lower portion of the mounting portion and tightened, the terminal box is pulled downward through the bolt, and the solar cell module is pulled through the terminal box. The solar cell module is fixed to the tile body in close contact with the mounting portion of the tile body.

According to the third and fourth aspects, when the solar cell module is mounted on the mounting portion of the tile body, the nut fixed to the terminal box faces the through hole and the lower surface of the solar cell module is in close contact with the mounting portion. Is done. Next, when a bolt is inserted into the through hole from the lower part of the mounting portion and a nut is screwed and tightened, the terminal box is pulled downward through the bolt, and the solar cell module is attached to the tile body through the terminal box. The solar cell module is fixed to the roof tile body in close contact with the portion.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 5 show a first embodiment, and FIG.
2 is a perspective view of a tile for a solar cell module, FIG. 2 is a plan view of a tile body, FIG. 3 is a vertical side view showing a tiled state of the tile for a solar cell module, and FIG. FIG. 5 is an enlarged sectional view of a portion A in FIG.

As shown in FIGS. 1 and 2, the roof tile body 1
For example, it is formed in a rectangular flat plate shape by cement or the like. Overlap portions 1a and 1b are provided on both sides of the tile body 1 so as to fit into the left and right adjacent tile bodies 1 in a male-female relationship. A part 1d is provided. And the hanging part 1c
Is overlapped with the upper surface of the lower tile body 1, and the rear rising portion 1 d is overlapped with the lower surface of the upper tile body 1.

On the upper surface of the tile body 1, a rectangular recess 2 as an attachment portion is provided over substantially the entire surface. The recess 2 is formed slightly deeper than the thickness of a solar cell module described later, and a rectangular terminal box housing recess 3 is provided at a substantially central portion of the recess 2. A through hole 3a is formed at a substantially central portion of the bottom of the terminal box storage recess 3, and a cable lead-out hole 3b is formed at a position offset toward the upper end of the tile body 1. Further, the back surface of the terminal box storage recess 3 is formed by a front hanging portion 1c of the tile body 1.
And the tile body 1 can be stably mounted on the roof.

On the bottom surface of the concave portion 2, a first drain groove 4a which is continuous in a U-shape along the upper side and both side sides of the concave portion 2 is provided. Further, a second drain groove 4b is provided in the center of the bottom surface of the recess 2 so as to surround the terminal box housing recess 3 in a U-shape. Further, a third drain groove 4c is provided at the corner of the lower side of the concave portion 2 over the entire length in the lateral direction, and the first and second drain grooves 4a and 4b communicate with the third drain groove 4c. I have. That is, the water flowing in the first and second drain grooves 4a and 4b collects in the third drain groove 4c.

Further, both ends of the third drain groove 4c and the second
Drainage holes 5 as through holes are formed at a total of four places where the drainage groove 4b and the third drainage groove 4c meet, and these drainage holes 5 penetrate the back surface of the tile body 1.

The recess 2 as a mounting portion of the roof tile body 1 configured as described above is formed in a size suitable for the size of the solar cell module 6, and the solar cell module 6 is housed in the recess 2. Have been. The solar cell module 6 has a transparent electrode layer, an amorphous semiconductor layer, and a back electrode layer formed on a single glass substrate, for example. The back surface is further sealed with a sealing material for insulation, waterproofing, and the like. Can be exemplified. Also,
As the semiconductor layer, an amorphous semiconductor layer is preferably used, but is not limited thereto, and may be a single crystal, polycrystal, microcrystal, Si-based or compound-based.

As shown in FIGS. 3 and 4, a terminal box 7 is fixed to a substantially central portion of the back surface of the solar cell module 6, and an output cable 8 is connected to the terminal box 7. The terminal box 7 is housed in the terminal box housing recess 3 of the tile body 1, and the output cable 8 is led out from the cable lead-out hole 3b to the back side of the tile body 1.

Further, at a substantially central portion of the terminal box 7, a bolt 9 constituting a fastening member fixes its head 9a to the bottom of the terminal box 7, and a screw portion 9b extends through the bottom of the terminal box 7 and extends downward. It protrudes. Here, when the terminal box 7 is made of a synthetic resin material, the head 9a of the bolt 9 is fixed to the bottom of the terminal box 7 with an adhesive. When the terminal box 7 is made of a metal material, it is welded or glued.
It is fixed to the bottom.

Then, the solar cell module 6 is fixed to the concave portion 2 of the roof tile body 1 as shown in FIGS.
That is, the solar cell module 6
Is mounted, the terminal box 7 is housed in the terminal box housing recess 3, and the bolt 9 is inserted into the through hole 3 a, and at the same time, the lower surface of the solar cell module 6 is brought into close contact with the upper surface of the recess 2. At this time, by interposing a packing 10 made of rubber or a synthetic resin material between the inner peripheral portion of the concave portion 2 and the outer peripheral portion of the solar cell module 6, it is possible to prevent rainwater or the like from entering the concave portion 2. Can be prevented.

Next, when a nut 11 constituting a tightening member is screwed into the screw portion 9b of the bolt 9 projecting from the lower part of the terminal box housing recess 3, the terminal box 7 is pulled downward via the bolt 9. Then, the lower surface of the solar cell module 6 is brought into close contact with the concave portion 2 of the tile main body 1 via the terminal box 7, and the solar cell module 6 is fixed to the tile main body 1.

In the present embodiment, one bolt 9 is protruded from the terminal box 7. However, a plurality of bolts are protruded from the terminal box 7, and the bottom of the terminal box housing recess 3 corresponds to the bolt. Then, a plurality of through holes may be formed and fixed at a plurality of locations. In addition, since the solar cell module 6 is fixed at one place of the terminal box 7 provided at a substantially central portion thereof, the lower surface of the outer peripheral edge of the solar cell module 6 and the upper surface of the concave portion 2 are bonded with a double-sided adhesive tape. The outer periphery may be prevented from floating by bonding.

Next, a description will be given of the so-called tile roofing in which the roof of a building is constructed by using the solar cell module tile constructed as described above. As shown in FIG.
6 is provided with a base plate 17 which is inclined downward from the ridge side 16a toward the eave side 16b.
The solar cell module tile is placed directly on or through a tile base material.

The tiles for the solar cell module are placed on the base plate 17 in order from the eaves side 16b toward the ridge side 16a in the same manner as in the ordinary tile roofing work. The overlap portions 1a and 1b are fitted in a male-female relationship, and a mounting hole 18 provided on the upper end side of the tile body 1 is provided.
(Refer to FIG. 1 and FIG. 2). In addition, the front hanging part 1c of the upper tile body 1 is overlapped with the upper part of the rear rising part 1d of the lower tile body 1 so that
Further, the drain hole 5 of the upper tile body 1 is located below the rear rising portion 1d of the lower tile body 1 (eave side 16b). Then, the roof tile body 1 in the upper stage is similarly fixed to the field board 17 by passing a nail through the mounting hole 18.

By repeating the method as described above,
The roof 16 can be constituted by the solar cell module tiles. By connecting the output extraction cables 8 derived from the terminal box 7 to each other in series or parallel in parallel with the roofing work, a plurality of solar cell modules can be formed. 6 can be electrically connected.

According to the present embodiment, the solar cell module 6 is fixed to the recess 2 of the tile body 1 by the bolts 9 and the nuts 11.
The solar cell module 6 does not need to be fixed to the tile main body 1 with an adhesive as in the related art. Therefore, the solar cell module 6 is
The fixing of the solar cell module 6 is easy, and the possibility that the adhesive deteriorates and the solar cell module 6 peels off from the tile main body 1 and the solar cell module 6 falls off is eliminated.

Further, by fixing the solar cell module 6 to the tile body 1 without using an adhesive, one or a plurality of the solar cell modules 6 laid on the roof 16 are damaged. If replacement is necessary, the nut 1 fixing the solar cell module 6
By loosening 1, there is an effect that the solar cell module 6 can be removed from the roof tile body 1 and replaced with a new solar cell module 6.

FIG. 6 shows a second embodiment, in which the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, a nut 11 constituting a fastening member is fixed to a substantially central portion of the bottom of the terminal box 7.
Here, when the terminal box 7 is a synthetic resin material, the nut 11 is fixed to the bottom of the terminal box 7 by an adhesive, and when the terminal box 7 is a metal material, it is fixed to the bottom of the terminal box 7 by welding or an adhesive. .

When the solar cell module 6 is placed in the concave portion 2 of the tile main body 1, the terminal box 7 is stored in the terminal box storing concave portion 3, and the nut 11 is opposed to the through hole 3a and at the same time, Lower surface is recessed part 2
Is closely attached to the upper surface.

Next, the through hole 3 of the terminal box housing recess 3
When a bolt 9 constituting a fastening member is inserted from a and screwed into a nut 11, the terminal box 7 is pulled downward through the bolt 9, and the lower surface of the solar cell module 6 is pulled through the terminal box 7. The solar cell module 6 is fixed to the tile main body 1 by being closely attached to the concave portion 2 of the tile main body 1.

In this embodiment, a plurality of nuts are fixed to the terminal box 7 and the terminal box housing recess 3 is fixed.
Drill multiple through holes at the bottom corresponding to the nuts,
It may be fixed by a plurality of bolts. Alternatively, the lower surface of the outer peripheral edge of the solar cell module 6 and the upper surface of the concave portion 2 may be bonded with a double-sided adhesive tape to prevent the outer peripheral portion from floating.

[0040]

As described above, according to the first aspect, the solar cell module is mounted on the mounting portion of the tile body,
The terminal box provided in the solar cell module can be locked and fixed by the locking member, and the solar cell module can be detachably fixed to the tile body with a simple configuration. According to the second aspect, the solar cell module can be detachably fixed to the tile main body with a simple configuration by fixing the solar cell module to the tile main body by using a fastening member composed of a bolt and a nut. Therefore, when the solar cell module is damaged, one of the solar cell modules can be easily replaced, and a highly reliable solar cell module tile capable of securely fixing the solar cell module to the tile body can be provided.

[Brief description of the drawings]

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

FIG. 2 is a plan view of the tile body of the embodiment.

FIG. 3 is a vertical side view showing a tiled state of the solar cell module tile of the embodiment.

FIG. 4 is a vertical side view of the solar cell module tile according to the embodiment.

FIG. 5 is an enlarged sectional view of a portion A in FIG. 4;

FIG. 6 is a vertical sectional side view of a main part of a tile for a solar cell module according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Tile body 2 ... Recessed part (mounting part) 3 ... Terminal box storage concave part 6 ... Solar cell module 7 ... Terminal box 9 ... Bolt 11 ... Nut

Claims (4)

[Claims] 1. A tile main body, a mounting portion provided on the tile main body for mounting a solar cell module provided with a terminal box on a lower surface, and a mounting portion provided on the terminal box and penetrating through the mounting portion of the tile main body. And a locking member for fixing the solar cell module to the tile main body at a lower portion of the tile. 2. A tile body, a mounting portion provided on the tile body for mounting a solar cell module having a terminal box on a lower surface, and a mounting portion provided on the terminal box and penetrating through the mounting portion of the tile body. A fastening member comprising a bolt and a nut for fixing the solar cell module to the tile body at a lower portion of the roof. 3. The bolt of the fastening member protrudes downward from the terminal box and penetrates a mounting portion, and a nut is screwed to the bolt at a lower portion of the mounting portion. 2. The roof tile for a solar cell module according to 2. 4. The sun according to claim 2, wherein a nut of the tightening member is provided in the terminal box, and a bolt is screwed into the nut from a lower part of the mounting part through the mounting part. Roof for battery module.