JP2001049800A - Tile for solar battery module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tile for solar battery module capable of securely preventing floating-up of a solar battery module above a tile body by anchor effect of adhesive in a hardened condition and improving the reliability and safety without causing adverse effect on cost. SOLUTION: This tile for solar battery module is provided with a tile body 1, a recessed part 2 storing a solar battery module M provided on an upper face of the tile body 1, and a hole for adhesive 7 which is provided from the upper face of the tile body 1 on an outer side of a peripheral fringe of the recessed part 2 and an inner side of the peripheral fringe of the recessed part 2 and from at least a bottom part of the recessed part 2 to a lower section and in which adhesive S to be poured into bonds and fixes the tile body 1 and the solar battery module M mutually. The hole for adhesive 7 constitutes an anchor structure in which its upper side and lower side are formed into a part having a small diameter ϕd and a part having a large diameter ϕD, respectively, to regulate coming off of the hardened adhesive onto the upper sides.

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 roofing material of a building, and more particularly to a tile for lifting a solar cell module when it is blown by a strong wind. It relates to improvement of prevention means.

[0002]

2. Description of the Related Art A technique of mounting a solar cell on a tile used as a roofing material of a building and converting solar energy into electricity for use is disclosed in Japanese Utility Model Application Laid-Open No. 62-52610, Japanese Utility Model Application Laid-Open No. 14-152, 1988.
No. 8417 and Japanese Utility Model Laid-Open No. 4-28524.

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

The technique disclosed in Japanese Utility Model Laid-Open No. 1-148417 is
The solar cell is provided on the lower surface of the flat tile, and the lead wire of the solar cell is led out from the portion where the space is formed on the back surface of both ends of the upper edge of the flat tile.

In the technique disclosed in Japanese Utility Model Laid-Open No. 4-28524, a concave portion is provided on the surface of a tile, a solar cell is bonded and fixed to the concave portion, and a terminal lead-out hole is formed in a part of the concave portion. hand,
The terminal of the solar cell is led out from the terminal lead-out hole to the back side of the tile.

[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 and fixed to the bottom surface via an adhesive.

[0007] Such a solar cell module mounting structure is at least rough enough to prevent the solar cell module from being displaced with respect to the roof tile body. When there is a problem such as a decrease in the adhesive strength at the interface between the solar cell and the solar cell, or a decrease in the adhesive strength at the interface between the adhesive and the tile, and it is not possible to prevent the solar cell module from being lifted, such as when it is blown by strong wind There is.

Therefore, as disclosed in Japanese Patent Application Laid-Open Nos. 10-88739 and 10-317592, a technique using a substantially L-shaped (L-shaped) fixing bracket separately from the adhesive has been developed. Was done.

[0009] That is, a part of the L-shaped fixture is fixed to the roof tile body, and the bent end portion presses the solar cell fitted in the recessed portion to prevent the solar cell module from lifting up on the roof tile. It is supposed to.

[0010] However, since the fixing bracket is attached to and fixed to the tile main body, even if the fixing bracket suppresses the floating of the solar cell module, all of its force is concentrated on the fixing fixing portion of the fixing bracket to the tile main body. With the risk of breakage.

In addition, it is necessary to separately manufacture a fixing bracket made of a metal material, and it is necessary to provide a means for attaching and fixing the metal fitting to the tile body, and it takes time and effort to press the solar cell module with the fixing bracket. A negative impact on costs is inevitable.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to ensure that an adhesive has an anchor effect in a cured state and that a solar cell module is lifted up from a roof tile body. It is an object of the present invention to provide a tile for a solar cell module which can prevent the occurrence of the solar cell module without adversely affecting the cost and improving the reliability and safety.

[0013]

SUMMARY OF THE INVENTION In order to satisfy the above objects, a solar cell module tile according to the present invention is characterized in that
A roof body, a recess provided on the top surface of the roof body to house the solar cell module, and at least a portion below the bottom of the recess from the top surface of the roof body and the inside of the circumference of the recess outside the periphery of the recess. The adhesive to be injected is provided with an adhesive hole for bonding and fixing the tile body and the solar cell module, and the adhesive hole has a lower side formed to have a larger diameter than an upper side, It is characterized in that the cured adhesive has an anchor structure in which removal to the upper side is restricted.

According to a second aspect of the present invention, in the roof tile for a solar cell module according to the first aspect, the solar cell module has a notch in which a part of the adhesive is filled at an end surface facing the adhesive hole. It is characterized by being provided.

According to a third aspect of the present invention, in the roof tile for a solar cell module according to the first aspect, an insert hardware is disposed in the adhesive hole, and serves as a core material of the adhesive injected into the adhesive hole. I do.

According to a fourth aspect of the present invention, in the roof tile for a solar cell module according to the third aspect, the metal insert is bent and formed so that a part thereof presses the surface of the solar cell module.

According to the first and second aspects of the present invention, by adopting means for solving the above problems,
The adhesive cured from the shape of the adhesive hole has an anchor effect of preventing the solar cell module from lifting up with respect to the roof tile body, thereby improving reliability and safety.

According to the third aspect of the present invention, the insert metal is used as the core material of the adhesive, and the strength of the adhesive is increased.
According to the invention of claim 4, the insert hardware directly presses down the solar cell module to more firmly prevent the insert from rising.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a perspective view and a plan view of the appearance of the solar cell module tile, and FIG. 2 shows a perspective view and a plan view of the tile body.

The roof tile body 1 is formed in a rectangular flat plate shape by, for example, a cement roof tile, and overlapped portions 1a and 1b are provided on both sides thereof so as to fit in a male and female relationship with the roof tile body adjacent to the left and right sides. .

A front hanging portion 1c is provided on the back surface of the lower end portion of the tile body 1.
However, a rear rising portion 1d is provided on the upper end surface, and the front hanging portion 1c overlaps with the upper surface of the lower tile body 1 in a tiled state, and the rear rising portion 1d is formed on the upper tile body 1 It is designed to overlap the lower surface.

On the upper surface of the tile body 1, a rectangular recess 2 is provided over substantially the entire surface, and the solar cell module M is fitted into the recess 2. The concave portion 2 is formed slightly deeper than the thickness of the solar cell module M, and a rectangular terminal box housing concave portion 3 is provided at a substantially central portion thereof.

At the bottom of the terminal box housing recess 3, a cable outlet 3 a is located at a position shifted toward the upper end of the tile body 1.
Are drilled. Further, the back surface of the terminal box storage recess 3 is formed at substantially the same height as the front hanging portion 1c of the tile main body 1, so that the tile main body 1 can be stably mounted on the roof.

On the bottom surface of the concave portion 2, a first drain groove 4 which is continuous in a U-shape along the upper side and both sides of the concave portion 2 is formed.
a 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 in the lower corner of the concave portion 2 over the entire length in the lateral direction, and the first and second drain grooves 4a and 4b are connected to the third drain groove 4c. Communicating. That is, the water flowing in the first and second drain grooves 4a and 4b collects in the third drain groove 4c.

Further, a total of four ends of both ends of the third drain groove 4c and a junction of the second drain groove 4b and the third drain groove 4c are provided.
Drainage holes 5 are formed at various locations, and these drainage holes 5 penetrate the back surface of the tile body 1.

[0027] The concave portion 2 of the tile body 1 configured as described above is formed in a size suitable for the size of the solar cell module M, and the solar cell module M is housed in the concave portion 2. .

The solar cell module M is, for example, 1
Transparent electrode layer, amorphous semiconductor layer,
This is a rectangular thin plate structure in which a back electrode layer is formed, and a steel plate is integrally provided on the back surface via a heat insulating material. Note that the present invention is not limited to the amorphous semiconductor layer, and may be single crystal, polycrystal, microcrystal, Si-based, or compound-based.

A terminal box is fixed substantially at the center of the back surface of the solar cell module M, and an output extraction cable (both not shown) is connected to the terminal box. The terminal box is housed in the terminal box housing recess 3 of the tile body 1, and the output cable is led out from the cable lead-out hole to the back side of the tile body 1.

The solar cell module M is attached to the tile main body 1 with an adhesive applied to the bottom surface of the concave portion 2, but is rough enough to prevent displacement. The solar cell module M is reliably prevented from rising from the tile main body 1 by a lifting prevention means described later.

The tile for the solar cell module thus constructed is mounted directly on a base plate inclined downward from the ridge side of the roof to the eaves side or via a tile base material (both not shown). Is placed.

As in the case of the ordinary tile roofing work, the solar cell module tiles are placed on the base plate sequentially from the eaves side to the ridge side. 1a and 1b are fitted in a male-female relationship, and are fixed to the field board through a mounting hole 6 provided on the upper end side of the tile body 1 through a nail.

Also, the rear rising portion 1d of the lower tile body 1
The upper hanging part 1c of the upper tile body 1 is overlapped, and the drain hole 5 of the upper tile body 1 is located below (eave side) the rear rising part 1d of the lower tile body 1. I do. Then, the roof tile main body 1 in the upper stage is also fixed to the field board by passing the nail through the mounting hole 6.

By repeating this method in the same manner as described above, a tile for a solar cell module can be constructed. In parallel with this roofing work, output take-out cables derived from a terminal box are connected in series or in parallel. Thereby, a plurality of solar cell modules can be electrically connected.

Next, the means for preventing the solar cell module M from lifting from the roof tile body 1 will be described with reference to FIGS.
It will be explained together. A plurality of adhesive holes 7 are provided at predetermined positions on the periphery of the concave portion 2 of the tile body 1. That is, the bonding holes 7 are provided on both corners on the eaves side and on the eaves side and on both sides near the eaves, and further on the ridge side and on both sides near the two corners on the ridge side.

These bonding holes 7 are formed such that the upper surface of the tile body 1 outside the concave portion 2 is formed in a semicircular shape with the peripheral edge of the concave portion 2 as a center point, and the inside of the concave portion 2 is formed in a semicircular shape. To form a perfect circle.

The adhesive hole 7 is provided so as to penetrate from the upper surface to the lower surface of the tile main body 1, and has a small diameter φd from the surface of the tile main body 1 to a portion beyond the bottom of the concave portion 2. Large diameter φD from bottom edge to back surface through tapered portion
Formed.

On the other hand, in the solar cell module M, a notch, here an inclined portion, is provided on the upper surface and at a position facing the bonding hole 7 in a state where the solar cell module M is fitted into the concave portion 2. 8a and 8b are provided.

As shown in FIGS. 3 (A) and 3 (B), the inclined portions 8a provided on each side of the solar cell module M except for both corners on the eaves side have a diameter φd of the adhesive hole on the small diameter side.
It has almost the same vertical and horizontal dimensions as, and is inclined from the inside toward the periphery. Also, the inclined portions 8b at both corners on the eave side are:
Incline from each perpendicular edge toward the corner.

As shown in FIGS. 3 (B) and 4 (A), the periphery of the adhesive hole 7 on the upper surface of the tile body 1 excluding the concave portion 2 side and the inclined portions 8a, 8a, 8
b. A masking tape 9 is adhered to each peripheral edge. Further, a masking tape 10 is adhered to the back surface of the tile body 1 in each of the adhesive holes 7 to close the lower end opening of the adhesive hole 7.

Then, when the solar cell module M is fitted into the concave portion 2, the peripheral surface and the bottom surface of the concave portion 2 of the adhesive hole 7 are closed by the solar cell module M, but the tile body 1 outside the concave portion 2. The upper surface is opened and faces the inclined portions 8a and 8b provided in the solar cell module M.
The masking tape 9 attached to the tile body 1 side of the adhesive hole 7 and the masking tape 9 attached around the inclined portions 8a and 8b also face each other.

In this state, the adhesive S is injected into the opening 7 for the adhesive and the inclined portions 8a and 8b. The adhesive S is
For example, since the back surface of the tile body 1 at the bottom of the adhesive hole 7 is closed with a masking tape 10, the adhesive S does not leak and the adhesive hole 7 and the inclined portions 8a, 8b.

The adhesive S hardens when left for a predetermined time, so that the masking tapes 9 and 10 are peeled off. Even if the adhesive S protrudes around the adhesive hole 7 and around the inclined portions 8a and 8b, all of them are put on the masking tape 9, and the adhesive protruding when the masking tape 9 peels off. The agent S is removed.

After all, as shown in FIGS. 3 (C) and 4 (B), the solar cell module M is attached and fixed to the tile body 1 with an adhesive S. The cross section of the adhesive S filled here has a semicircular shape with a small diameter φd at the upper end and a large diameter φD at the lower end from the shape of the adhesive hole 7, and a tapered shape between them. I have.

Therefore, the cured adhesive S has an anchor-shaped cross section, and has a structure in which pulling out to the upper side is regulated. Even if the solar cell module M is lifted from the tile main body 1 by the strong wind, as long as the adhesive S adheres to the solar cell module M at a predetermined strength, the solar cell module M is pulled against the tile main body 1. An anchor effect of hanging and fixing is obtained.

According to the experiment, when the solar cell module roof tile was blown by a strong wind having a wind speed of 60 M, a force (wind pressure) of about 10 kg / cm ² was applied to the solar cell module M.
I try to make this stand out.

The cured adhesive S has an anchor effect that can sufficiently withstand such a wind pressure, and functions reliably even if it is provided at least on the eaves side. Moreover, since the adhesive S is filled in the inclined portions 8a and 8b provided on the surface of the solar cell module M and presses the solar cell module M from the upper surface, the floating of the solar cell module M is more firmly prevented.

FIG. 5 shows a second embodiment. Here, it is needless to say that the adhesive hole 7A is formed to have a larger diameter than the upper surface side of the tile main body 1 in the lower portion of the concave portion 2, but the bottom portion is located at a predetermined distance from the lower surface of the tile main body 1. There is a closed structure. Therefore, when injecting the adhesive S into the adhesive hole 7A, the lower surface opening end of the adhesive hole 7 is previously set to the masking tape 1 as described above.
The trouble of closing at 0 is unnecessary.

Although the adhesive hole 7A does not have the tapered portion as described above, the adhesive hole 7A is filled and cured by providing the small-diameter portion and the large-diameter portion in steps. There is no change in that the obtained adhesive can reliably obtain the anchor effect, and the inclined portions 8a and 8
Since b is filled with the adhesive S, the floating of the solar cell module M is more firmly regulated.

A core 11 made of, for example, a wire is placed in the center of the adhesive hole 7A, and then the adhesive S is injected and cured. Stiffness can be increased.

FIG. 6 shows a third embodiment. The adhesive hole 7A provided in the tile body 1 is exactly the same as that described in the second embodiment. And the adhesive S
By injecting the adhesive S after injecting the core material 12 made of, for example, a wire into the center of the bonding hole 7A before injecting the adhesive S, an anchor effect similar to that described above can be obtained.

Moreover, the core 12 is bent along the upper surface of the solar cell module M, and the bent portion 12a presses the solar cell module M. From this, as in the first and second embodiments, the inclined portions 8a and 8 as described above are provided on the upper surface of the solar cell module M.
b becomes unnecessary.

The core material 11 or 12 made of wire
Can be arranged in the adhesive hole 7 of the first embodiment described above, and if the core material 12 is used, the inclined portion of the solar cell module M becomes unnecessary.

Further, in the above-described embodiment, the shape of the adhesive hole 7 is formed as a semicircle on the tile body 1 side and is formed as a semicircle on the concave portion 2 side. However, there is no problem even if each has a rectangular shape. In addition, the inclined portions 8a and 8b are provided as the notches, but may be simply stepped.

[0055]

As described above, according to the first and second aspects of the present invention, the adhesive cured from the shape of the adhesive hole prevents the solar cell module from lifting up with respect to the tile body. And improve reliability and safety.

According to the third aspect of the present invention, the insert metal is used as the core material of the adhesive, and the strength of the adhesive is increased.
According to the fourth aspect of the present invention, the bent portion of the insert hardware directly presses the solar cell module to provide an effect of more firmly preventing the floating.

[Brief description of the drawings]

FIG. 1 is an external perspective view and a plan view of a solar cell module tile to which a solar cell module is mounted, showing a first embodiment of the present invention.

FIG. 2 is a perspective view and a plan view of the tile body, showing the embodiment.

FIG. 3 is a partial perspective view of the solar cell module, showing the same embodiment, a partial plan view of the solar cell module when the solar cell module is bonded to the tile main body, and a state where the solar cell module is bonded and fixed to the tile main body. FIG.

FIG. 4 is a partial cross-sectional view showing the same embodiment when the solar cell module is bonded to the tile main body and when the solar cell module is bonded and fixed to the tile main body.

FIG. 5 is a partial cross-sectional view showing a second embodiment in a state where a solar cell module is bonded and fixed to a tile body.

FIG. 6 is a partial cross-sectional view showing a third embodiment in a state where a solar cell module is bonded and fixed to a tile body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Roof body, M ... Solar cell module, 2 ... Depressed part, S ... Adhesive, 7 ... Hole for adhesives, 11, 12 ... Insert hardware, 12a ... Bending part (of insert metal).

Continued on the front page (72) Inventor Kazuto Hirai 114-1 Firiko, Kamisuke Town, Tokushima City, Tokushima Pref. 2E108 KK04 LL01 MM00 NN07 5F051 BA03 BA18 JA09

Claims (4)

[Claims] 1. A tile main body, a concave portion provided on an upper surface of the tile main body, for accommodating a solar cell module, and at least a bottom portion of the concave portion from an upper surface of the tile main body and an inner periphery of the concave portion outside a peripheral edge of the concave portion. An adhesive hole is provided over the lower portion, and the injected adhesive has an adhesive hole for bonding and fixing the tile body and the solar cell module, and the adhesive hole has a lower side larger than an upper side. A roof tile for a solar cell module, wherein the roof tile has a diameter and has an anchor structure in which the cured adhesive is prevented from coming off to the upper side. 2. The solar cell according to claim 1, wherein the solar cell module is provided with a cutout in which a part of the adhesive is filled on an end surface facing the hole for the adhesive. Roof for module. 3. The roof tile for a solar cell module according to claim 1, wherein an insert metal member is arranged in the adhesive hole and serves as a core material of the adhesive injected into the adhesive hole. 4. The tile for a solar cell module according to claim 3, wherein a part of the insert metal part is formed by bending so as to press down the surface of the solar cell module.