JPH076343U - Slate roof tile solar cell module - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a slate roof tile solar cell module that prevents the formation of a gap between the slate roof tile solar cell modules when mounted on a roof, is lightweight, and has an excellent heat dissipation effect. To aim. [Structure] A main body is composed of a metal plate 1 on which reinforcing ribs 1a are formed in a roof inclination direction, and a solar cell is formed on a region excluding a rear region where the metal plate 1 is stacked as a roof tile on the roof. Paste 2 and seal with a transparent cover glass 4,
A screw-fastening hole 1b for attaching to a roof is formed in the rear region, and a contacting projection made of the metal plate 1 is formed on the lower surface on the tip side of the metal plate 1 in a direction orthogonal to the rib 1a. The part 1c was formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a slate tile type solar cell module which is arranged as a roof tile on a roof of a house to generate solar power.

[0002]

[Prior art]

 Solar cells that are installed on the roofs of houses in ordinary households to generate solar power include Japanese roof tile type solar cell modules that have the same curved shape as the Japanese roof tiles that are installed on the roofs of ordinary houses, and slate roof tiles. A slate roof tile type solar cell module having a flat plate shape has been proposed.

[0003]

[Problems to be solved by the device]

 The Japanese roof tile type can be replaced with normal Japanese roof tiles as it is, so no special consideration is required for installation on the roof, but the manufacturing process is complicated because the solar cell light receiving surface is curved. However, it is said that there are difficulties in terms of cost.

On the other hand, the slate roof tile type has a flat light-receiving surface, so that it is easy to form a solar cell, but a means for arranging it on the roof is indispensable. The most common method is to provide a mounting hole in the glass substrate, which is the main body, and screw it to the roof surface through the hole. Since this is a work, as shown in FIG. 7, when the slate roof tile solar cells 20 ... Are attached, a gap S ... May be formed between the solar cells 20, 20. There is a problem that the solar cell 20 is easily turned over due to the infiltration of water and causing rain leakage, or the entry of wind into this gap. In addition, with regard to the solar cell module itself, important issues such as prevention of output reduction due to temperature rise and weight reduction are also emphasized.

In view of the above-mentioned circumstances, the present invention prevents the formation of a gap between slate tile solar cell modules during installation on a roof, is lightweight, and is a tile tile solar with an excellent heat dissipation effect. An object is to provide a battery module.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the slate tile type solar cell module of the present invention comprises a main body made of a metal plate on which uneven portions for reinforcement are formed in the direction of inclination of the roof, and the metal plate serves as a roof tile. The solar cells are pasted on the area excluding the rear area to be overlaid on the roof and sealed with a transparent cover glass, and the rear area is provided with an attachment portion for attaching to the roof, and It is characterized in that a convex portion for contact made of the metal plate is formed on a lower surface of the plate on the front end side in a direction orthogonal to the concave-convex portion.

In addition, the slate tile type solar cell module of the present invention comprises a metal plate having a corrugated portion for reinforcement formed in the inclination direction of the roof, and the metal plate is stacked as a tile on the roof. The solar cells are pasted on the area excluding the rear area and sealed with a transparent cover glass, the mounting area for roof mounting is formed on the rear area, and the lower surface of the rear area is The present invention is characterized in that a convex portion for inclination adjustment is formed of the above-mentioned metal plate which is also used as an uneven portion or is formed separately.

[0008]

[Action]

 According to the above-mentioned first configuration, since the convex portion for contact is formed on the lower surface of the front end side of the metal plate, it is possible to prevent the formation of a gap between the solar cell modules when mounting on the roof. That is, in the conventional case, the above-mentioned gap is formed because the lower surface of the solar cell module to be arranged later comes into contact with the upper edge of the rear end of the solar cell module to be arranged earlier. Since the convex portion for contacting the solar cell module to be arranged later contacts the upper surface of the solar cell module arranged first, the rear end of the solar cell module whose lower surface is arranged first as described above. Since it does not come into contact with the upper edge portion, it is possible to avoid the formation of the gap.

Further, according to the second configuration, since the protrusion for tilting is formed on the lower surface of the rear region of the metal plate, it is possible to prevent the formation of a gap between the solar cell modules when mounting on the roof. it can. The gap formation by the conventional structure can be understood as a phenomenon that the angle between the base plate and the solar cell module varies. In this configuration, since the above-mentioned angle is made constant by the convex portion for tilt adjustment, the formation of the above-mentioned gap can be avoided.

In each of the first and second configurations, the main body is made of a metal plate on which concave and convex portions for reinforcement are formed, and has the same strength and wind pressure resistance as the main body made of a glass substrate. Since the weight can be reduced while holding it, the workability of mounting on the roof can be improved and the transportation cost can be reduced. Furthermore, since the main body is made of a metal plate, the thermal conductivity is better than that of a main body made of a glass substrate. As a result, the heat dissipation is improved, so that the temperature rise of the solar cell can be suppressed and the output reduction can be prevented.

[0011]

【Example】

 (Embodiment 1) Hereinafter, the present invention will be described with reference to the drawings showing an embodiment thereof.

FIG. 1 is a view showing a slate roof tile solar cell module 10 of the present invention, FIG. 1 (a) is a plan view thereof, and FIG. 1 (b) is a sectional view taken along the line AA.

In the figure, reference numeral 1 denotes a metal plate that constitutes the main body of the slate roof tile solar cell module, and is composed of a stainless plate, an iron plate with a rust preventive coating, or the like. The metal plate 1 has a long side of about 60 to 90 cm, a short side of about 40 cm, and a thickness of about 0.5 to 1 mm. A plurality of reinforcing ribs 1a are formed on the metal plate 1 in the direction of inclination of the roof, and the lower surface of the front end side of the metal plate 1 for contacting the metal plate 1 is orthogonal to the ribs 1a. The convex portion 1c is formed. The rib 1a has a width and height of about 2 to 5 mm, and a forming interval of about 150 to 200 mm. Further, the convex portion 1c is formed so as to have an arcuate cross section. The rib 1a and the convex portion 1c can be formed, for example, by pressing a flat metal plate 1. It should be noted that the sizes of the above-mentioned parts are merely examples, and the sizes are not limited to these.

The metal plate 1 is bent at a substantially central portion. The bending depth corresponds to the thickness of the bonding structure of the solar cell 2 described later, and the width of the bent lower side corresponds to the width of the bonding structure of the solar cell 2.

In the figure, reference numeral 2 denotes a solar cell which is attached from the front surface side along one side of the long side of the metal plate 1, and is usually made of amorphous silicon for increasing the area. The solar cell 2 is provided in the lower half of the metal plate 1 or in an area less than that. The reason why the area where the solar cells 2 are attached is half or less than the entire surface of the metal plate 1 is that when the roof is usually a slate tile type roof, the slope of the roof is a Japanese tile, etc. This is because it is considerably looser than that of the slate, and the overlapping portion of the tiles is extremely large because it is necessary to prevent rainwater from seeping through the gaps between the slate tiles. Specifically, as will be apparent from the following description, most of the rear end side region of the metal plate 1 where the solar cell 2 is not provided is the overlapping region of roof tiles.

Next, the attachment structure of the solar cell 2 will be described. As shown in FIG. 1 (b), this pasting structure includes a first adhesive layer 3a made of an adhesive provided on the metal plate 1 and a first adhesive layer 3a provided on the first adhesive layer 3a. And the second adhesive layer 3b made of an adhesive provided on the solar cell 2 and the transparent glass substrate 4 placed on the second adhesive layer 3b. The sealed structure of the solar cell 2 is realized by this structure.

Such a structure is manufactured by the following method. For example, a glass substrate 4, an EVA (ethylene vinyl acetate) sheet serving as the first adhesive layer 3a, a solar cell 2, a solar cell 2, The EVA sheet serving as the adhesive layer 3b of No. 2 and the metal plate 1 are set in this order, and the upper chamber and the lower chamber are evacuated. Then, the above sample is heated to about 100 ° C. by a heater to melt the EVA sheet. Next, the upper chamber is leaked to atmospheric pressure. At this time, the silicon sheet separating the upper chamber and the lower chamber is pressed against the sample by the pressure difference between the upper chamber and the lower chamber, whereby the sample is adhered and integrated. Finally, the sample is heated at 150 ° C. for about 30 minutes to crosslink (stabilize) EVA. Thereby, the above-mentioned sticking structure can be obtained.

In a place where the solar cell 2 is not provided in the metal plate 1, that is, in the overlapping region where the roof tiles are overlapped (rear end side region), a screw stopper for attaching the metal plate 1 to the roof is provided. The holes 1b are formed at two or more places.

In this embodiment, since the screw fastening hole 1b is formed on the rib 1a, for example, the force when peeling from the roof due to wind pressure is applied to the rib 1a, The mounting strength on the roof is improved compared to the case where it is applied to a place other than the rib 1a.

Next, a case where the solar cell module 10 having such a configuration is installed on the roof of a house will be described with reference to FIG. The basic configuration at the time of installation is such that the solar cell modules 10 are arranged in a staggered arrangement on the base plate 11, for example, and each of the arranged solar cell modules 10 has a screw 12 in its screw hole 1b. It is driven in and fixed to the base plate 11.

As is apparent from the mounting structure shown in FIG. 2, in the solar cell module 10 of the present embodiment, since the convex portion 1c for contacting is formed on the lower surface of the metal plate 1 on the tip side, mounting on the roof is performed. In, the formation of a gap between the solar cell modules 10, 10 can be prevented. That is, the convex portion 1c for contacting the solar cell module to be arranged later comes into contact with the upper surface of the solar cell module arranged first, and the lower edge of the solar cell module where the lower surface is arranged first as in the conventional case. It is possible to avoid the formation of a gap because it does not come into contact with.

Further, the main body is made of the metal plate 1 on which the reinforcing ribs 1a are formed, and the main body can have the same strength and wind pressure resistance as those of the main body made of a glass substrate, and can be reduced in weight. It is possible to improve the workability of the above mounting and reduce the transportation cost. Furthermore, since the main body is made of a metal plate, the heat conductivity is better than that of a main body made of a glass substrate. Thereby, heat dissipation is improved, the temperature rise of the solar cell 2 can be suppressed, and the output reduction can be prevented. This heat dissipation property can be further improved by increasing the number of the ribs 1a to increase the surface area of the metal plate 1 and by using a metal plate 1 having good heat conductivity.

Second Embodiment Another embodiment of the present invention will be described below. The same members as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

3A and 3B are views showing the slate roof tile solar cell module 10 of the present embodiment. FIG. 3A is a plan view thereof, FIG. 3B is a sectional view taken along the line AA, and FIG. Drawing (c) is a BB arrow sectional view.

In the solar cell module 10 of this embodiment, ribs and protrusions 1d that function as reinforcing ribs and at the same time function as protrusions for tilt adjustment are formed in the rear region of the metal plate 1. The rib / protrusion 1d can be formed, for example, by pressing the flat metal plate 1.

A case where the solar cell module 10 having such a configuration is installed on the roof of a house will be described. As shown in FIG. 4, the solar cell module 10 is arranged with the lower surface of the rib / projection portion 1d abutted on the upper surface of the base plate 11. By arranging in this way, the upper surface of the solar cell module 10 arranged earlier and the lower surface of the solar cell module 10 arranged later are secured in parallel, and in this state, the space between the solar cell modules 10 and 10 is increased. By adjusting the distance, it is possible to eliminate the gap between the upper surface and the lower surface of both solar cell modules 10, 10.

Third Embodiment Another embodiment of the present invention will be described below.

FIG. 5 is a diagram showing the slate roof tile solar cell module 10 of this embodiment, FIG. 5A is a plan view thereof, and FIG. 5B is a sectional view taken along the line AA. .

In the solar cell module 10 of this embodiment, the convex portions 1e and 1f for tilting are formed on the lower surface of the rear region of the metal plate 1. Both the convex portions 1e and 1f have different heights from each other, and give a certain inclination when the solar cell module 10 is installed on the roof. In this embodiment, the convex portions 1e and 1f are formed integrally with the rib 1a, but they may be formed separately from the rib 1a. Further, a structure having only the convex portion 1e and no convex portion 1f may be used.

A case where the solar cell module 10 having such a configuration is installed on the roof of a house will be described. As shown in FIG. 6, the solar cell module 10 is arranged with the lower surfaces of the convex portions 1e and 1f in contact with the upper surface of the base plate 11. By arranging in this way, the upper surface of the solar cell module 10 arranged first and the lower surface of the solar cell module 10 arranged later are secured in parallel, and in this state, both solar cell modules 10, By adjusting the distance between the solar cells 10, the gap between the upper surface and the lower surface of both solar cell modules 10, 10 can be eliminated.

[0031]

[Effect of device]

 As described above, according to the present invention, it is possible to prevent a gap from being formed between solar cell modules when mounting on a roof, and to prevent roof tiles from being leaked due to rain or wind. In addition, the weight can be reduced while maintaining the strength against bending and the reliability against wind pressure, and the workability of mounting the solar cell module on the roof can be improved. Furthermore, the effect of preventing a decrease in the output of the solar cell by improving the heat dissipation is also exhibited.

[Brief description of drawings]

FIG. 1 (a) is a plan view of a solar cell module of the present invention, and FIG. 1 (b) is a sectional view taken along the line AA of FIG.

FIG. 2 is a perspective view showing a mounted state of the solar cell module of the present invention.

3 (a) is a plan view of the solar cell module of the present invention, FIG. 3 (b) is a sectional view taken along the line AA, and FIG. 3 (c) is a sectional view taken along the line BB. .

FIG. 4 is a perspective view showing a mounted state of the solar cell module of the present invention.

5 (a) is a plan view of the solar cell module of the present invention, and FIG. 5 (b) is a sectional view taken along the line AA of FIG.

FIG. 6 is a perspective view showing a mounted state of the solar cell module of the present invention.

FIG. 7 is a perspective view showing a mounted state of a conventional solar cell module.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 metal plate 1a rib (uneven part for reinforcement) 1b screw-fastening hole (mounting part) 1c convex part for contact 1d rib / projection part 1e convex part for tilting 1f convex part for tilting 2 solar cell 3a 1st adhesive agent layer 3b 2nd adhesive agent layer 4 Cover glass 10 Slate roof tile type solar cell module 11 Field plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Satoshi Yanaura 2-18, Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A solar cell is formed on a region excluding a rear region in which a metal plate having a corrugated portion for reinforcement formed in a tilting direction of a roof is stacked on the roof as a roof tile. Is attached and sealed with a transparent cover glass, an attaching portion for attaching to the roof is formed in the rear region, and the tip end side lower surface of the metal plate is formed in a direction orthogonal to the uneven portion. A slate roof tile solar cell module, characterized in that a protrusion for contact made of a metal plate is formed. 2. A solar cell is formed on a region excluding a rear region where the metal plate is provided with an uneven portion for reinforcement in a tilting direction of the roof, and the metal plate is stacked as a roof tile on the roof. And a transparent cover glass for sealing, a mounting portion for mounting on the roof is formed in the rear area, and the metal plate which is also used as the uneven portion or is separate from the lower surface of the rear area. A slate roof tile solar cell module, characterized in that a convex portion for tilting is formed.