JP2002317529A - Roof tile-integrated solar cell module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof tile-integrated solar cell module which can be easily and reliably integrated with a roof tile, and which has a long outdoor weathering life, a small width dimension, excellent beauty and lightness in weight. SOLUTION: A peripheral part of the solar cell module 11 is provided with a frame 100 which has an approximately U-shaped cross section and whose U-shaped cross-section opening is fitted into a periphery of the module 11 so as to fix and hold the module 11. A recess 202 of a roof tile body 200 is provided with a plurality of through holes 201. A lower plate part of the frame 100 and the body 200 are fastened together by a pressure-welded and fixed type bolt 106, which is fixed to the lower plate part, and an insertion nut 203 on a backside of the roof tile in order to integrate the module 11 with the body 200.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a roof-integrated solar cell module in which a solar cell module is housed and fixed in a concave portion provided on an upper surface of a roof tile main body.

[0002]

2. Description of the Related Art At present, research and development of clean energy are being promoted from the standpoint of environmental protection. Above all, solar cells are attracting attention because of their infinite resources (solar rays) and no pollution. A typical example of a solar cell (photoelectric conversion device) in which a plurality of solar cell elements formed on the same substrate are connected in series is a thin-film solar cell.

Thin-film solar cells are considered to be the mainstream of solar cells in the future because of their thinness, light weight, low production cost, and easy area enlargement. Demand is expanding for business use and general residential use, which are used for such purposes. For general residential use, roof tiles with solar cells or tile-integrated solar cell modules have also been developed.

In recent years, research and development of a flexible solar cell using a plastic film has been promoted, and by utilizing this flexibility, mass production can be performed by a roll-to-roll method or a step-roll method. I have.

In order to seal a solar cell formed on an electrically insulating film substrate with an electrically insulating protective material, the light receiving surface side and the non-light receiving surface side of the solar cell are used as the thin film solar cell module. Both are provided with a protective layer.

In addition, many patent proposals have been made for the above-mentioned roof tile-integrated solar cell module, which are disclosed, for example, in the following publications. The outline is as follows. JP-A-8-144440 discloses a method in which a frame is mounted around a solar cell module, the solar cell module is mounted on a roof tile, and then fastened together with the solar cell module with a U-shaped metal fitting from the side of the roof tile. Have been. Japanese Unexamined Patent Publication No. Hei 10-88739 discloses the same thing as the above-mentioned publication, in which an L-shaped metal fitting is attached to a roof tile, and after attaching a solar cell module, the tip of the L-shaped metal fitting is bent and fixed. I have. Japanese Patent Application Laid-Open No. 2000-352155 discloses a method in which a bolt is attached to a terminal box attached to the back surface of a solar cell module, and the terminal box is fixed with a nut from the back through a hole formed in a roof tile. Japanese Patent Application Laid-Open No. 2001-32454 discloses a method in which an L-shaped metal fitting with a bent end is attached to the back surface of a solar cell module, and a bolt provided on the L-shaped metal fitting is passed through a through hole in a roof tile and fixed from the back side. It has been disclosed. Japanese Patent Laying-Open No. 2000-352154 discloses a solar battery module in which a solar cell module is inserted into a groove provided in a roof tile and fixed with a fixing member. Japanese Patent Application Laid-Open No. 11-1999 discloses a method in which a groove is formed in a surface of a roof tile facing a back surface of a solar cell module, and an adhesive is placed on the groove to fix the solar cell module.

[0007] Although the roof tile-integrated solar cell module described in the above publication is different in the method and means for attaching to the roof tile, from the viewpoint of the problem of the present invention, all have a similar configuration as described later. .

FIG. 10 is a side sectional view showing an example of a schematic structure of a conventional roof tile integrated solar cell module. FIG.
In the solar cell 1, one or a plurality of solar cell elements are connected in series or in parallel, a surface protection member 2 such as a glass plate is provided on the light receiving surface side, and an aluminum foil A back surface protection member 3 having ethylene monofluoride adhered to both surfaces is provided, and is heat-sealed and sealed with an adhesive resin sealing material 4 such as EVA (ethylene-vinyl acetate copolymer resin) which is excellent in adhesive sealing property and is inexpensive. Stopped and integrated.

In the solar cell 1, internal lead wires 5 and 6 are electrically connected to the positive (+) and negative (−) poles, and the internal leads 5 and 6 are connected to the back surface protective member 3. It is guided through the back surface protection member 3 to the terminal box 7 fixed and adhered thereto, and is electrically connected to the core wires 9 and 10 of the cable 8 as an external lead inside the terminal box 7. Is formed.

As the surface protection member 2, an organic material such as a transparent acrylic plate may be used in addition to an inorganic material such as a glass plate. In addition to the above-mentioned resin containing a metal foil, the backside protective member 3 may be an organic film alone such as a fluorine-based film, a composite material obtained by laminating an organic film and a metal foil, or a metal such as a metal plate or a glass plate.・ Inorganic materials may be used.

The solar cell module 11 configured as described above is fitted into a concave portion 13 provided in the roof tile main body 12, and a fixed sealing material 14, for example, a room-temperature-curable silicone rubber adhesive is filled in the concave portion 13. It is applied, filled and fixed. In order to further secure the fixing, a fixing bracket 15 is provided on the surface protection member 2 side of the solar cell module 11 and is fastened by fixing screws 16 to increase the mechanical strength of integration. Body type solar cell module 1
7. This roof tile integrated solar cell module 1
7 is installed on a roof base plate (not shown) to form a roof with solar cells.

[0012]

The functions required as a roof-integrated solar cell module are as follows. The solar cell module is easily and securely mounted on the roof tile, and its fixing force does not decrease over time. Excellent outdoor weather resistance, especially high reliability of moisture intrusion prevention function and long life. The thickness dimension is thin. Be lightweight. There should be no irregularities in appearance.

The conventional roof tile-integrated solar cell module described in FIG. 10 and each publication has the following problems from the viewpoint of the above-mentioned required functions.

In the roof tile-integrated solar cell module shown in FIG. 10, since the dimensions of the roof tile body 12 and the solar cell module 11 are not uniform, the recess 13
A part of the fixed sealing material 14 filled in the
5 and the surface protection member 2 of the solar cell module 11 are also filled. Therefore, when a commonly used organic material (for example, a room-temperature-curable silicone rubber adhesive) is used as the fixed sealing material 14, the bonding strength is reduced due to long-term deterioration due to sunlight, wind and rain. Or the sealing function of the fixed sealing material 14 is lost, and the end 18 of the solar cell module 11
There is a problem that moisture invades from above and corrodes the solar cell 1 and the lead wires 5 and 6.

In particular, when EVA is used for the adhesive resin sealing material 4, it is hydrolyzed by water to produce acetic acid,
Further promotes corrosion. In addition, the organic material components dissolve and contaminate the surface of the surface protection member 2, thereby lowering the power generation characteristics of the solar cell module 11. In addition, the fixing bracket 15 that is mechanically combined and fixed protrudes from the surface of the solar cell module 11 and has problems such as impairing the appearance and accumulating dust and the like.

Further, in the roof tile integrated solar cell module described in the publications cited in the above cited publications, the number of parts increases because the fixing bracket is separately provided,
The parts cost and the mounting work are complicated, and the cost is high as a whole. Further, as described above, since the metal fitting protrudes from the surface of the solar cell module, the appearance is impaired, and dust and the like are deposited.

In the roof tile-integrated solar cell module described in the above publication, since the module is fixed via the terminal box, it is necessary to make the terminal box strong, and it is unavoidable to increase the size of the solar cell module. It is disadvantageous in terms of dimensions and is also expensive. Furthermore, there is a problem that the solar cell module is fixed to the tile at one place and it is difficult to evenly attach the solar cell module to the tile.

The roof tile-integrated solar cell module described in the above and the above publications has a structure substantially similar to that of FIG. 10, and has the same problems as described above.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to easily and surely integrate a solar cell module and a tile, to have a long outdoor weathering life, Another object of the present invention is to provide a roof tile-integrated solar cell module that is small in thickness, lightweight, and excellent in appearance.

[0020]

In order to solve the above-mentioned problems, in the present invention, a solar cell is sealed between a light-transmitting surface protection member and a back surface protection member with an adhesive resin sealing material. A solar cell module integrated with a roof, wherein the solar cell module is housed and fixed in a recess provided on the upper surface of a roof tile main body, wherein the solar cell module has an upper flat plate portion and a lower flat plate A frame having a substantially U-shaped cross section formed by a portion and a side plate portion, and a frame for fixing and holding the module by fitting an opening having the U-shaped cross section around the module; and further comprising the roof tile main body. Is provided with a plurality of through-holes, and a lower fastening portion of the lower flat plate portion and the roof tile main body fixed to the lower flat plate portion is inserted into the through-hole. From the back side of the concave part to the roof By fastened by a fixing member for fixing to the body, and made integral with said solar cell module and the roof tile main body (invention of claim 1).

According to the above configuration, the surface protection member at the peripheral portion of the solar cell module can be covered with a frame having relatively high dimensional accuracy, and the periphery of the module can be sealed together with the fixed sealing material. Moisture can be blocked. Also, depending on the frame,
The entire periphery of the module is mechanically held evenly, and the solar cell module is easily and securely fastened to the roof tile via the insertion fastening member fixed to the lower flat plate of the frame and the fixing member from the back side of the tile It becomes possible and the workability of integrating the module and the roof tile is improved. Further, the size and weight can be substantially the same as those of the conventional one.

According to an embodiment of the first aspect of the present invention,
The following claims 2 to 9 are preferred. That is, in the roof tile-integrated solar cell module according to claim 1, the length dimension (L2) of the lower flat plate portion of the frame is equal to the length dimension (L1) of the upper flat plate portion. It is larger than the size obtained by adding the large size (the invention of claim 2). This facilitates fixing of the insertion fastening member to the lower flat plate portion of the frame.

3. The roof-integrated solar cell module according to claim 1, wherein the upper flat plate portion of the frame extends to the opposite side to the upper flat plate portion with the side plate portion interposed therebetween. (Invention of claim 3). In this way, when a solar cell module is mounted on a roof tile, the gap between the roof tile and the module is covered, and when a filler is inserted into this gap, the filler is retained, and sunlight is directly applied to the filler. Can be prevented.

Further, in the tile-integrated solar cell module according to any one of claims 1 to 3, the plug-in fastening member has a biting portion at a head thereof, and the biting portion is provided below the frame. A pressure contact fixing type bolt fixed by being pressed into and biting into the side flat plate portion (invention of claim 4). This facilitates assembly of the roof tile and the solar cell module. Further, as will be described in detail later, since the head of the press-contact fixing type bolt bites, the thickness (height) of the frame can be made thin (low), and the overall thickness when mounted on a roof tile can be reduced. It has the advantage of being thinner.

[0025] Further, in the roof tile-integrated solar cell module according to any one of claims 1 to 4, the plug-in fastening member has a detent portion having an arrow-shaped side cross section at a tip end thereof, and An insertion pin provided with a slit in the center (invention of claim 5). Thereby, the reliability and ease of fastening of the roof tile and the solar cell module can be improved.

Furthermore, in the roof tile-integrated solar cell module according to any one of claims 1 to 4, the fixing member has an opening at a central portion thereof, and tongues are provided at two opposing positions of the opening. A tongue-shaped projection having a function of fixing the insertion fastening member by its spring force when the insertion fastening member is inserted into the opening. (The invention of claim 6). As the fixing member, a normal screwed nut may be used for the rotational fastening. However, according to the invention of claim 6, the fixed fastening can be performed only by inserting without rotating and fastening, and the working time can be reduced.

Further, in the tile-integrated solar cell module according to any one of claims 1 to 6, an organic filler such as a silicon-based, epoxy-based, or acrylic-based filler is provided in the through hole of the roof tile body. Alternatively, any one of inorganic fillers such as a cement material is filled (the invention of claim 7). Thereby, even if water intrudes from between the roof tile and the solar cell module, it can be prevented from reaching the field board.

Further, in the roof tile-integrated solar cell module according to any one of claims 1 to 7, the upper flat plate portion of the frame is linearly inclined so as to gradually become thinner toward the center of the solar cell module. A thickness dimension (t1) and a length dimension (L1) of the upper flat plate portion so that the cross-sectional shape of the upper flat plate portion is a substantially right triangle, and the inclination of the inclined surface is 1/3 or less. (The invention of claim 8). Further, in the roof tile-integrated solar cell module according to the eighth aspect, an arc-shaped inclined surface is used instead of the linear inclined surface (the invention of the ninth aspect).

According to the eighth and ninth aspects of the present invention, as will be described in detail later, the rainwater falling on the surface of the surface protection member of the solar cell module does not stay at the front end portion of the frame but along the slope. There is no run-off and no accumulation of dust.

[0030]

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

FIG. 1 is a schematic sectional view of the structure of a tile-integrated solar cell module according to the present invention, and FIG. 2 is a perspective view showing a state in which the solar cell module 11 is inserted into a roof tile main body 200. 1 and 2, the solar cell module 11 has the same structure as the conventional one shown in FIG. 10 except for the frame 100 and the fixed sealing material 108, and thus the description is omitted.

Referring to FIG. 1 and FIG.
The solar cell module 11 on which is mounted the pressure-fixing bolt 1
06 is inserted and fitted into the concave portion 202 provided in the roof tile main body 200, and is fixed from the back side of the roof tile main body 200 by the insertion nut 203. In addition, through hole 2
01 is filled with a filler (not shown) and is hermetically sealed.

As shown in FIG. 2, the solar cell module 11 has a concave portion 202 provided in the roof tile main body 200.
And the step portion 204 includes the frame 1
00 is inserted into the roof tile main body 200.
Filling material 205 inserted in the gap between the frame and the frame 100
Is directly exposed to sunlight, preventing deterioration and improving aesthetics. As the gap filling material 205, any of an organic buffering material such as sponge rubber and plate rubber, a filler, an adhesive, and the like can be used. The gap filling material 205 is provided between the step portion 204 and the eave-shaped flat plate 10.
In order to prevent rainwater or the like from entering the back side of the solar cell module 11 through the gap of No. 4, if there is no possibility that the reliability is reduced due to rainwater intrusion or there is no danger of rainwater leaking to the field board,
Can be omitted.

Further, referring to FIG.
Is used for bonding and fixing the solar cell module 11 as necessary in addition to the pressure fixing bolt 106, and uses, for example, a double-sided adhesive tape. As described above, by combining mechanical fixing and fixing by adhesion, the roof tile body 200
And the solar cell module 11 can be more reliably fixed.

The details of each member used in the roof tile-integrated solar cell module and the assembly thereof will be described below.

FIG. 3 is a cross-sectional view of a frame according to the present invention, and FIG. 4 is an explanatory view relating to a method of fixing a press-contact fixing bolt as a plug-in fastening member according to the present invention to the frame.

3 and 4, the frame 100 has a substantially U-shaped cross section, and the dimension L2 of the lower flat plate portion 102 is longer than the dimension L1 of the upper flat plate portion 101. Further, the side plate portion 103 is provided with an eaves-like flat plate portion 104 substantially parallel to and opposite to the upper flat plate portion 101.

As shown in FIG. 4, a hole 105 is formed in the lower flat plate portion 102, and a pressure fixing bolt 106 is inserted and fixed from above in the hole 105, and fixed by a jig (not shown). The head portion 106a of the mold bolt 106 is pressed, and the bite portion 106b provided on the back side of the head portion 106a bites into the surface 102a of the lower flat plate portion 102 and is fixed. Main pressure fixing bolt 106
Has a thin head portion and does not protrude significantly above the surface 102a because it penetrates into the lower flat plate portion 102, and the surface 102a and the head portion 106a are substantially flush with each other. Therefore, the surface 101a of the upper flat plate portion 101 and the head 10
6a can be widened, so that the solar cell module can be easily inserted, and the thickness (height) dimension of the frame in the direction of the distance W1 can be reduced (reduced). This has the advantage that the overall thickness when mounted can be reduced.

The surface 101b of the upper flat plate portion 101 on the opposite side to the surface 101a is directed in the direction of the dimension L1 and is inclined so that the tip becomes thin. Thereby, as described above, the surface protection member of the solar cell module and the surface 101a
Can be made to flow over the height dimension t1 while rainwater or the like on the surface of the surface protection member is in contact with or joined via a fixed sealing material having a small thickness. It is desirable that the slope slope (t1 / L1) be equal to or less than the lowest construction slope of the roof tile. Of the general construction slope of 1/3 to 1/1, the slope should be equal to or less than 1/3. Good. In the present embodiment, a 1/3 gradient is adopted, and t1 =
1 mm and L1 = 3 mm.

In the embodiment shown in FIG. 3, the surface 101b has a linear gradient. However, the surface 101b may have an arc shape, and a desirable shape is appropriately selected from the viewpoint of appearance. In addition, it is preferable that the tip portion 101c has the above-mentioned drainage function and is sharply sharpened for the purpose of preventing accumulation of dust and the like, but there is a risk of injury during assembly work or handling. It is better to round the corners appropriately, and for example, an appropriate dimension is selected within a radius of curvature of 0.1 mm to 1.0 mm. In this embodiment, the corner is rounded by adopting a value of the radius of curvature 0.3 mm.

Further, the eave-shaped flat plate portion 104 provided substantially parallel to and in the opposite direction to the upper flat plate portion 101 conceals a gap between the roof tile and the solar cell module when the solar cell module is mounted, and fills the gap with the filler. In addition, when the filler is inserted, the filler also serves to hold the filler and to prevent deterioration due to direct contact of sunlight with the filler. A projection 102b is provided on a surface 102a of the lower flat plate portion 102. The projection serves to prevent the fixed sealing material from flowing out after the solar cell module assembling operation. In addition, it is preferable to form a roundness having a radius of curvature of 0.2 to 5 mm on at least the module body insertion side of the projection in order to facilitate insertion of the module body into the frame.

FIG. 5 is a perspective view in which the solar cell module 11 and the frame 100 are separated, and FIG.
1 shows a sectional view in which the frame 100 is attached.

Referring to FIGS.
6 is mounted on the solar cell module 1
1 are provided on the four sides, and are filled with the fixed sealing material 108 in the U-shaped opening 107 and then inserted. At this time, the surface 101a of the upper flat plate portion 101 of the frame 100 abuts on the surface 2a of the surface protection member 2 of the solar cell module 11, or is assembled via a fixed sealing material 108 having a small thickness, as described above. The rainwater on the surface 2a of the surface protection member 2 is prevented from remaining on the front end portion 101c of the frame 100.

In FIG. 5, the frame 100 is
Although four divisions are shown, two divisions may be used. In this case, each of the two divided frames is cut so that each side is divided while leaving only the side plate portion, and the side plate portion is bent at a right angle. The battery module is mounted so as to face the diagonal line of the battery module.

FIG. 7 is a perspective view of an insertion nut as a fixing member of the solar cell module. In FIG. 7, an opening 203p of the insertion nut 203 is provided with a fastening portion 203a that fits with the helical portion of the press-fixed bolt 106 such that two sides of the triangle face the central portion on the thin plate. Parallel slits 203 on both sides of the two sides
This has a configuration in which a tongue-shaped projection 203c provided with b is caused, and a spring material such as phosphor bronze or stainless steel is used as a material. Pressure fixing bolt 10
6 is inserted from below in the state of FIG. The insertion nut 203 has a fastening function only by being inserted without being rotated like a normal nut, so that the fastening operation time can be reduced. As the fixing member, an ordinary screwed nut type can be used instead of the insertion nut.

Next, FIG. 8 shows a side view of an insertion pin according to a different embodiment of the insertion fastening member. In FIG. 8, the insertion pin 210 has a detent part 211 whose tip portion is formed in an arrow shape. Further, a slot 212 having an appropriate length dimension is provided from the tip portion.
The insertion pin 210 can be used in place of the press-fit fixing bolt 106 shown in FIGS. 3 and 4, and the connection with the frame 100 can be made by inserting the hole 105 into an adhesive and fixing it or by inserting the press-fit fixing bolt 106 The same structure as the part 106b may be adopted and fixed.

FIG. 9 is a partial cross-sectional view when a roof-integrated solar cell module in which a roof tile and a solar cell module are integrated is installed on a roof base plate. FIG. 9 (a)
FIG. 9B is a partial cross-sectional view in which a plurality of roof tile-integrated solar cell modules 300 are connected, and FIG.

In FIG. 9, when the roof tile-integrated solar cell module 300 is installed on the base plate 301, the inclination of the surface protection member 2 of the solar cell module 11 is
1 or slightly smaller due to the stair-like overlapping construction (FIG. 9 is an exaggerated drawing, and the inclination is illustrated at a considerably different angle from the actual one). ). On the other hand, as described above, the inclination gradient between the surface 101b of the frame 100 and the surface protection member 2 located on the lower side in the roof flow direction is smaller than the minimum gradient of the base plate 301. The rainwater that has flowed down does not stay at the tip portion 101c, flows down to the eaves side, and does not accumulate dust and the like.

In order to improve the drainage action flowing down to the eaves side, as shown in FIG.
It is desirable to provide a slope of 1: 3 at the step of 0. In addition, by applying the same color or alumite treatment to the roof tile main body and the module main body to the frame 100, it is possible to improve the aesthetic appearance and the durability. In this case, the flat portion of the eaves-shaped flat plate portion 104 is rounded, for example, to have a curved surface with a radius of curvature of 10 to 100 mm, thereby preventing the coating film from being damaged and improving the appearance. Furthermore, by providing stripes on the exposed surface of the module of the frame 100, an antiglare effect can be provided.

[0050]

As described above, according to the present invention, a solar cell module in which a solar cell is sealed between a translucent surface protection member and a back surface protection member with an adhesive resin sealing material is provided on a roof. In a tile-integrated solar cell module that is housed and fixed in a recess provided on the upper surface of a tile body, the solar cell module is formed by an upper flat plate portion, a lower flat plate portion, and a side plate portion on a peripheral edge thereof. Having a substantially U-shaped cross section, a frame for fixing and holding the module by fitting an opening of the U-shaped cross section around the module,
The concave portion of the roof tile body has a plurality of through holes,
A lower plate portion of the frame and a roof tile body, a fastening member inserted into the through hole fixed to the lower plate portion,
By fastening the insertion fastening member with a fixing member for fixing the roof tile body to the roof tile main body from the back side of the concave portion, the solar cell module and the roof tile main body are integrated, so that it is easy and reliable. The solar cell module and the roof tile can be integrated into one, the outdoor weathering life is long, water intrusion into the solar cell module can be prevented in particular, and the thickness is small and light, and the tile-integrated solar cell is excellent in appearance. A battery module can be provided.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a schematic configuration of a tile-integrated solar cell module according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a solar cell module and a roof tile main body are assembled.

FIG. 3 is a side sectional view of a frame according to the present invention.

FIG. 4 is an explanatory view showing a state of assembling the frame and the press-contact fixing type bolt according to the present invention.

FIG. 5 is a perspective view showing a state where a frame is separated from a solar cell module according to the present invention.

FIG. 6 is a side sectional view of a solar cell module with a frame according to the present invention mounted.

FIG. 7 is a perspective view of an insertion nut according to the present invention.

FIG. 8 is a side view of the insertion pin according to the present invention.

FIG. 9 is a partial cross-sectional view of a roof tile-integrated solar cell module according to the present invention installed on a field board.

FIG. 10 is a side sectional view of a schematic configuration of a conventional tile-integrated solar cell module.

[Explanation of symbols]

1: solar cell 2: surface protection member 3: back surface protection member
11: solar cell module, 100: frame, 10
1: upper flat plate portion, 102: lower flat plate portion, 103: side portion,
104: eave-shaped flat plate part, 106: fixed pressure fixing bolt, 10
6b: biting portion, 108: fixed sealing material, 200: roof tile body, 201: through hole, 202: concave portion, 203: insertion nut, 203c: tongue-shaped projection, 203p: opening,
205: gap filling material, 210: insertion pin, 211: detent portion, 212: slot.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yujiro Watanuki 1-1, Tanabe-Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Inside Fuji Electric Co., Ltd. (72) Inventor Koji Shimizu 1, Tanabe-Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa No. 1 Fuji Electric Co., Ltd. (72) Inventor Takufumi Watanabe 106 Someya, Sakaimachi, Sarushima-gun, Ibaraki Prefecture Asahi Kasei Corporation (72) Inventor Toshio Igarashi 106 Someya, Sakaimachi, Sarushima-gun, Ibaraki Asahi Kasei Corporation (72) Inventor Tomotoshi Mizota 106, Someya, Sakai-machi, Sarushima-gun, Ibaraki Pref. In-house (72) Inventor Masato Hamajima 106, Someya, Sakai-machi, Sarushima-gun, Ibaraki Pref. Asahi Kasei Co., Ltd.

Claims (9)

[Claims] 1. A solar cell module in which a solar cell is sealed between a translucent surface protection member and a back surface protection member with an adhesive resin sealing material is provided in a recess provided on an upper surface of a roof tile body. In the tile-integrated solar cell module housed and fixed in the solar cell module, the solar cell module has a substantially U-shaped cross section formed by an upper flat plate portion, a lower flat plate portion, and a side plate portion at a peripheral portion thereof. A frame for fixing the module by fitting the opening having the U-shaped cross section around the module,
Further, the concave portion of the roof tile body includes a plurality of through holes, and the lower flat plate portion and the roof tile body are fixed to the lower flat plate portion by inserting the lower flat plate portion into the through hole. A fastening member;
The solar cell module and the roof tile body are integrated with each other by fastening the insertion fastening member with a fixing member for fixing the roof tile body to the roof tile body from the back side of the concave portion. Solar cell module. 2. The roof-integrated solar cell module according to claim 1, wherein a length dimension (L2) of the lower flat plate portion of the frame is equal to a length dimension (L1) of the upper flat plate portion. A tile-integrated solar cell module characterized in that the dimension is larger than the sum of the maximum widths of the side surfaces of the tiles. 3. The roof tile-integrated solar cell module according to claim 1, wherein the upper flat plate portion of the frame extends to a side opposite to the upper flat plate portion with the side plate portion interposed therebetween. A roof tile-integrated solar cell module comprising: 4. The tile-integrated solar cell module according to claim 1, wherein the plug-in fastening member has a biting portion at a head thereof, and the biting portion is located below the frame. A roof-integrated solar cell module, characterized in that it is a pressure-fixed bolt that is fixed by being pressed into and biting into a flat plate portion. 5. The roof tile-integrated solar cell module according to claim 1, wherein the plug-in fastening member has a detent portion having an arrow-shaped side cross section at a tip end thereof, and A tile-integrated solar cell module, characterized in that it is an insertion pin having a slit at the center. 6. The tile-integrated solar cell module according to claim 1, wherein the fixing member comprises:
It has an opening at the center thereof, and tongue-like projections are provided at two places opposite to the opening, and when the insertion fastening member is inserted into the opening, the tongue-like projection is A roof-integrated solar cell module, wherein the insertion nut has a function of fixing the insertion fastening member by a spring force. 7. The roof tile-integrated solar cell module according to claim 1, wherein the through hole of the roof tile body includes an organic filler such as a silicon-based, epoxy-based, or acrylic-based filler. A tile-integrated solar cell module characterized by being filled with any one of inorganic fillers such as a cement material. 8. The roof tile-integrated solar cell module according to claim 1, wherein the upper flat plate portion of the frame is gradually thinned toward the center of the solar cell module. And the cross-sectional shape thereof is a substantially right triangle, and the slope of the slope is 1
/ 3 or less so that the thickness of the upper flat plate portion (t
A tile-integrated solar cell module, wherein the ratio of 1) to the length dimension (L1) is determined. 9. The tile-integrated solar cell module according to claim 8, wherein the linearly inclined surface is replaced by an arc-shaped inclined surface.