JP2003096982A - Tile-integrated solar battery module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tile-integrated solar battery module which is provided with a thin terminal box of a rainproof structure on a rear side thereof, and is thin in thickness. SOLUTION: The solar battery module 50 is housed in a recess 81 of a roof tile 80, and provided with the terminal box 1 from which a power lead is taken out. The power lead is formed of an S-shaped crank terminal plate having first to third flat portions L1 to L3. The first flat portion has one end thereof electrically connected to a solar battery, and extends almost in parallel with a rear surface of the solar battery module. The second flat portion is bent at a joint portion of the first flat portion in a direction outside the solar battery module and toward a front surface of the same to be connected to the third flat portion, to thereby connect the third flat portion to an outside power cable. At least part of the terminal plate and at least part of the power cable are integrally molded of a resin, and the resultant molded body is bonded to the rear surface of the solar battery module.

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 tile-integrated solar cell module in which a solar cell module is housed and fixed in a recess provided in the upper surface of a roof tile body, and more particularly,
The present invention relates to a structure for taking out power leads of a solar cell module.

[0002]

2. Description of the Related Art Thin-film solar cells are considered to be the mainstream of solar cells in the future because of their thinness, light weight, low manufacturing cost, and easy enlargement.
Demand is expanding for commercial use, which is attached to the roof and windows of buildings, and for general housing. Roof tiles with solar cells or roof tile-integrated solar cell modules have also been developed for general housing.

In recent years, research and development of a flexible type solar cell using a plastic film has been promoted, and by utilizing this flexibility, mass production becomes possible by a roll-to-roll system or a step roll system manufacturing method. There is.

As the above-mentioned thin film solar cell module, in order to seal a solar cell formed on an electrically insulating film substrate with an electrically insulating protective material, the solar cell has a light receiving surface side and a non-light receiving surface side. It is known that a protective layer is provided on both sides.

Many patent proposals have been made for the roof tile-integrated solar cell module described above.

11 and 12 are side sectional views showing an example of a schematic structure of a roof tile-integrated solar cell module proposed by the applicant of the present application in Japanese Patent Application No. 2001-120284, and a solar cell module and a roof tile main body are assembled. It is a perspective view showing a state. However, the member numbers are shown by changing those in the above application (FIGS. 1 and 2).

In FIG. 11 and FIG. 12, a solar cell module 311 has one or a plurality of solar cell elements connected in series or in parallel, and a light-receiving surface side thereof has a surface protection member such as a glass plate and a back surface. On the side, for example, a back surface protection member in which ethylene monofluoride is adhered to both sides of an aluminum foil is provided, and an adhesive resin sealant such as EVA (ethylene-vinyl acetate copolymer resin) which has excellent adhesive sealability and is inexpensive The material is heat-sealed and sealed to be integrated.

Further, the solar cell module 311 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, and the opening portion having the U-shaped cross section is formed. A frame 300 that fits around the module to fix and hold the module is provided (for details, see Japanese Patent Application No. 2001-2001).
120284).

The frame 300 has a fixed sealing material 308.
The solar cell module 311 mounted via the roof is fitted into the recessed portion 402 provided in the roof tile main body 400 while the pressure contact fixing type bolt 306 is inserted into the through hole 401 formed in the roof tile main body 400. It is fixed by the insertion nut 403 from the back side of the roof tile body 400. Further, the through hole 401 is filled with a filling material (not shown) to be watertightly sealed.

The solar cell module 311 is shown in FIG.
As shown in FIG. 2, the concave portion 4 provided in the roof tile main body 400.
02, and the eaves-shaped flat plate portion 304 of the frame 300 is inserted into the step portion 404.
Gap filling material 4 inserted in the gap between 00 and the frame 300
05 is directly exposed to sunlight, preventing deterioration and improving aesthetics. As the gap filling material 405, any one of organic buffer materials such as sponge rubber and plate rubber, a filling material, and an adhesive material is used. Note that the gap filling material 405 prevents rainwater and the like from entering the back side of the solar cell module 311 through the gap between the step portion 404 and the eaves-shaped flat plate 304. It can be omitted if there is no risk of rainwater leaking into.

Further, referring to FIG. 11, the adhesive support 40
Reference numeral 6 is for fixing the solar cell module 311 in addition to the pressure contact fixing type bolt 306 by adhesion, for example, using a double-sided adhesive tape. As described above, by using both mechanical fixing and fixing by adhesion, the roof tile main body 400 and the solar cell module 311 can be fixed more reliably.

Further, in a solar cell module having the same structure as described above, a part of the inventor of the present application has proposed Japanese Patent Application No. 2000-178040 with regard to the structure of a terminal box for extracting the power lead thereof to the outside. .

8 to 10 show the above-mentioned Japanese Patent Application No. 2000-
FIG. 8 is a diagram showing an example of the configuration of the terminal box of the solar cell module proposed in No. 178040 with some modifications or additions, FIG. 8 being a top view of the terminal box, FIG.
1 is a sectional view taken along the line AA of FIG. 1 and is attached to a solar cell module, and FIG. 10 is a side sectional view of the solar cell module of FIG. 9 attached to a roof tile.

In FIG. 8, a power cable 1 for drawing power to the outside is provided at one end of each of the terminal plates 103 and 104.
The core wire 107 of No. 06 is soldered and electrically connected, and the other end is exposed to the through hole 108 of the casing 102. At this exposed portion, as will be described later, the lead wire of the solar cell module 150. It is electrically connected to 156 and 157.

On the other hand, one of the terminal plates 103 and 104 is divided into two in the middle, and a backflow prevention diode 105 is electrically connected as shown by a broken line between the two. There is.

The power cable 10 configured as above
6, terminal plates 103 and 104, backflow prevention diode 105
Is integrally formed by injection molding or molding with a plastic such as a modified polyphenylene ether resin to form a casing 102, which constitutes a terminal box 101 for a solar cell module as a whole.

In FIG. 9, the terminal box 101 is attached by adhering the casing 102 to the back surface protection member 158 of the solar cell module 150.

The solar cell module 150 includes a surface protection member 151, an adhesive resin encapsulant 152, a solar cell 153 covered with the adhesive resin encapsulant 152, and an adhesive resin encapsulant 1.
Lead wires 156 and 15 covered with 52 and connected to the positive electrode 154 and the negative electrode 155 of the solar cell 153.
7 and the back surface protection member 158, the lead wires 156 and 157 penetrate through a hole 159 formed in the back surface protection member 158, and the terminal box 101 is formed.
Are electrically connected and fixed to the terminal plates 103 and 104 provided in the through holes 108 by soldering. In addition, after solder connection to the through hole 108, a filler material 160 such as a silicone resin is provided for the purpose of suppressing moisture intrusion and electrically insulating.
And then the lid 110 is attached.

In FIG. 10, the solar cell module 150 to which the terminal box 101 is attached as described above is
It is inserted into the groove 201 provided in the roof tile 200, which is a roof material, and the sealing fixing material 203 is inserted between the peripheral end portion 170 of the solar cell module and the side wall portion 202 of the groove 201 to be fixedly held. On the other hand, the terminal box 101 is inserted into the through hole 210 provided below the bottom surface 204 of the groove 201 of the roof tile 200.

Here, the through hole 210 is preferably a blind hole that does not penetrate the through hole 210 in order to avoid rain leakage and spread of fire to the side of the base plate at the time of fire as described later. However, in that case,
The height L of the casing 102 must be configured by adding the wall thickness dimension T of the roof tile 200 to the dimension L of the through hole 210 where a certain clearance is added, and the back surface 220 of the roof tile 200 is shown in FIG. Since it projects further downward than in the case, it physically interferes with the base plate 250 and the construction cannot be performed.

[0021]

As described above, in the roof tile-integrated solar cell module, when the terminal box is provided in the gap between the roof material and the solar cell module, the conventional roof tile-integrated solar cell module has the following configuration. There are the following problems.

In general, roofing materials such as roof tiles are
In terms of construction, it is desirable that the roof tile is lightweight, the overall height of the roof tile is low, and the roof tile is mostly made thin. Also, aesthetically, the solar cell module is provided with a concave groove in the roof tile and accommodated therein, and the terminal box is also accommodated on the back surface of the solar cell module, that is, between the roof tile and the solar cell module. In this case, the gap between the roof tile and the solar cell module cannot be made large, and in the terminal box with the conventional structure,
It cannot be thinner than the cable diameter (about 6 mm),
In addition, the thickness h of the casing portion of the terminal box needs to be 10 to 14 mm in consideration of the size of the cable fixing portion, which makes it difficult to store.

As a countermeasure for the above, as shown in FIG. 10, a structure in which the roof tile where the terminal box is located is cut out and a cavity is provided is inserted, but the roof tile and the solar cell module are sealed for a long term. Rainwater invades from the fixed part,
Rain leaks through the cavity. In addition, when the solar cell module is burned due to a jumping fire or the like at the time of a fire, the burned adhesive resin encapsulant or the like may fall from the cavity to the base plate and spread the spread of fire.

Further, the roof tile-integrated solar cell module of this type cannot be post-processed to have a reduced size or a part thereof due to its structure. Therefore, depending on the roof structure of a house or the like, it may not be possible to lay it over the entire surface, and a roof tile of the same size and shape that can be processed without a solar cell module is used together. When existing roof tiles are shared with existing roof tiles that do not have solar cell modules installed, it is difficult and difficult to use the same roof material shape with conventional terminal boxes, and even if they are shared, The shape changes and it is not aesthetically pleasing, and it is difficult to construct.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a thin terminal box having a structure designed to prevent rain on the back side of a solar cell module. Another object of the present invention is to provide a roof tile-integrated solar cell module in which the solar cell module and the roof tile can be integrated easily and reliably and the thickness dimension is small.

[0026]

In order to solve the above-mentioned problems, in the present invention, a solar cell module in which a solar cell is sealed between a translucent front surface protection member and a back surface protection member is provided on a roof. Stored in the recess provided on the top of the roof tile,
In a roof tile-integrated solar cell module comprising a terminal box for taking out a power lead of the solar cell module from the back side of the solar cell module to the outside through the recess,
The power lead comprises a flat terminal plate electrically connected to the positive electrode and the negative electrode of the solar cell, and the terminal plate has a first flat plate portion, a second flat plate portion and a third flat plate portion S. The first flat plate portion has one end electrically connected to the positive electrode and the negative electrode of the solar cell,
The second end extends substantially parallel to the back surface of the solar cell module and has the other end outside the periphery of the solar cell module.
Connected to the flat plate portion of the second flat plate portion, the second flat plate portion extends from the connection portion with the first flat plate portion to the outside and the front surface side of the solar cell module, and the other end is the third flat plate portion. The third flat plate portion having one end connected to the second flat plate portion has the other end connected to an external power cable (the invention of claim 1).

With the above structure, the thickness of the terminal box on the back side of the module is the same as the thickness of the flat terminal plate.
Since this terminal board has only the thickness of the electric insulation layer required, a roof tile-integrated solar cell module including a thin terminal box can be realized as will be described later in detail.

As an embodiment of the invention of claim 1,
The inventions of claims 2 to 7 below are preferable. That is, in the roof tile-integrated solar cell module according to claim 1, the terminal plate is formed by bending a band-shaped flat plate into the S-shaped crank shape, and at least a part of the terminal plate and at least the power cable. Part of the housing is provided with an electrically insulating housing integrally formed of resin (the invention of claim 2). This facilitates ensuring the insulation of the terminal board and mounting it on the module, and also facilitates the manufacture of the terminal box.

Further, in the roof tile-integrated solar cell module according to claim 2, the housings are a first housing, a second housing, and a third housing which are integrally molded.
The first housing covers a part of the first flat plate portion with a resin, and electrically connects the first flat plate portion to the positive electrode and the negative electrode of the solar cell. The second housing has a portion of the first flat plate portion and the second flat plate portion covered with resin, and a step is formed at a connection portion with the first housing. A portion of the second flat plate portion, a portion of the third flat plate portion and at least a portion of the power cable are covered with a resin, and the third housing is ,
The back surface protection member of the solar cell module is adhered (invention of claim 3).

Further, in the roof tile-integrated solar cell module according to any one of claims 1 to 3, the power cable is arranged substantially parallel to a surface of the solar cell module, and at least a part of the power cable is arranged. Is disposed above the surface of the solar cell module (the invention of claim 4).

According to the inventions of claims 3 to 4, the electrical connection between the positive and negative electrodes of the solar cell and the terminal plate and the attachment of the terminal box to the module are facilitated. It avoids positional interference, facilitates connection to the power cable, and realizes a highly reliable electrical insulation structure as a whole.

Further, in the roof tile-integrated solar cell module according to claim 3 or 4, the terminal plate is a pair of positive and negative metal flat plates arranged substantially in parallel, and the opening space portion of the first housing is provided. In, a part of the first flat plate portion of the terminal plate is exposed, one of the exposed first flat plate portions is divided, and a backflow prevention diode is electrically connected to the divided portion. (Invention of Claim 5). This facilitates the electrical connection of the backflow prevention diode.

Further, the invention of claim 6 is preferable from the viewpoint of the structure in which the solar cell module and the roof tile are easily and surely integrated and the power lead is easily taken out. That is, in the roof tile-integrated solar cell module according to any one of claims 1 to 5, the solar cell module has a substantially U-shape formed by an upper flat plate portion, a lower flat plate portion, and a side plate portion at a peripheral portion thereof. The roof tile body has a plurality of through-holes, the frame having a U-shaped cross-section, the opening of the U-shaped cross section being fitted around the module to fix and hold the module. , A lower flat plate portion of the frame and a roof tile main body are fixed to the lower flat plate portion, and an insert fastening member into the through hole, and the insert fastening member from the recess back surface side to the roof tile main body. The solar cell module and the roof tile main body are integrated by fastening with a fixing member for fixing to the roof tile body.

In order to easily pull out the power cable connected to the terminal board from the end of the roof tile main body and maintain the water repelling function of the roof tile, the invention of claim 7 is preferable. That is, in the roof tile-integrated solar cell module according to any one of claims 3 to 6, the roof tile main body has a cutout portion in a water return portion provided on one side thereof, and the third housing is provided. Is provided with a rib that fits into this notch and fulfills the function of water repelling.

[0035]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. First, the configuration of the terminal box portion of the roof tile-integrated solar cell module according to the present invention will be described.

1 to 3 show an embodiment of the terminal box of the present invention. FIG. 1 is a top view, FIG. 2 is a side view, and FIG. 3 is a sectional view taken along line BB of FIG.

1 to 3, terminal plates 10 and 1
1 is a conductive strip-shaped flat plate made of copper, for example, and FIG.
As shown in, the first flat plate portion L1 and the second flat plate portion L
2 and the third flat plate portion L3. First flat plate portion L1
Is fixedly held on the periphery by the first housing 20 having the opening space portion 21, and in the opening space portion 21, the first flat plate portion L
Part 1 is exposed and is electrically connected and fixed to the lead wire of the solar cell module as described later.

Further, in the first flat plate portion L1, one of the terminal plates is divided by the opening space portion 21, and the backflow prevention diode 12 is inserted between the divided portions and electrically connected and fixed. There is. The first flat plate portion L1 has an opening space portion 21.
Is provided so as to traverse, and the tip ends 10a and 11a thereof are mechanically fixed and held by the housing 20. A lid 15 is provided on one side of the opening space 21, and after connecting a lead wire, which will be described later, to the terminal plates 10 and 11, the space is filled with a filling material.

The opposite ends of the terminal plates 10a and 11a extend to the second housing 30 and are bent upward in the plane of the paper in FIGS. 2 and 3 to form the second flat plate L2, and again. Third flat plate portion L3 bent in the lateral direction
Power cable 14 introduced into the third housing 40
It is electrically connected and fixed to the core wire 13 by soldering or crimping.

The surface 31 of the second housing 30 is located below the surface 22 of the first housing 20 that is adhesively fixed to the back surface protection member of the solar cell module (not shown).
The stepped portion D is configured to prevent positional interference with the frame portion of the solar cell module described later.

In the third housing 40, the brim 4 extending outward from the side walls 32 and 33 of the second housing 30.
3, 44 and ribs 45, 46 are provided. This rib is
When mounted on a roof tile, the groove of the roof tile into which the second housing 30 is inserted is closed, and is fitted into a cutout portion of the roof tile to serve as a water sink (see FIG. 7 described later). .

Therefore, in the first to third housings 20 to 40 (including the collar and the rib), the terminal plates 10 and 11, the backflow prevention diode 12, and the power cable 14 are preliminarily processed into predetermined shapes and dimensions. The terminal box 1 for a solar cell module is constructed by inserting the above into a molding die and integrally injection-molding or molding with a plastic such as a modified polyphenylene ether resin.

The terminal plate composed of the first to third flat plate portions is manufactured by cutting a conductive metal plate, chemical etching, press punching or the like.

In the terminal box 1 configured as described above, since the terminal plates 10 and 11 of the first and second housings 20 and 30 are thin strip-shaped flat plates, the thickness dimension h thereof is h.
Can be made small and can be made extremely thin without impairing mechanical strength and electrical insulation. According to the manufacturing result, there is no problem even if the thickness is 4 mm. However, in consideration of mass production such as molding yield, the thickness is preferably about 6 to 8 mm.

Next, a structure in which the terminal box is assembled into a solar cell module will be described. 4 and 5 are views in which the terminal box is attached to the solar cell module, FIG. 4 is a perspective view of the terminal box seen from the light receiving surface side, and FIG. 5 is a side sectional view of FIG. Indicates.

In FIGS. 4 and 5, for example, the surface 22 of the first housing 20 of the terminal box 1 is adhesively fixed to the back surface 51 of the substantially rectangular solar cell module 50. Also, the electrodes 61, 62 of the solar cell 60 indicated by the broken line
The lead wires 63 and 64 electrically connected and fixed to the terminal box 1 are electrically connected and fixed to the terminal boards 10 and 11 of the terminal box 1, respectively.

Further, around the solar cell module 50,
As described with reference to FIG. 11, a frame 70 having a substantially U-shaped cross section is provided, and the frame 70 has a function of sealing the periphery and mounting and fixing the roof. As described above, the surface 31 of the second housing 30 of the terminal box 1
The flat plate portion 71 located below the frame 70 projects below the back surface 51 of the solar cell module 50, and in order to avoid positional interference, the first housing 20 that abuts and fixes the back surface 51. Is located below the surface 22 of the.

FIGS. 6 and 7 show the solar cell module mounted on a roof tile, FIG. 6 is a side sectional view, and FIG. 7 is a partial bird's-eye view showing the terminal box portion. It is the figure which looked through the terminal box to it.

FIG. 6 is a view in which the solar cell module 50 shown in FIG. 5 is inserted and fixed in the roof tile 80, and the recess 8 of the roof tile 80 is shown.
The solar cell module 50 inserted in the
A fixing bolt 72 as a plug-in fastening member of 0 is inserted into a hole 82 formed in the roof tile 80 and mechanically fixed from the back surface 83 side of the roof tile 80 by the fixing member 73, and the back surface 51 of the solar cell module 50 and the roof tile. The sealing fixing material 85 is provided between the frame 80 and the bottom surface 84, and the sealing fixing material 85 is provided between the frame 70 and the side surface 86 of the roof tile 80, and they are adhesively fixed.

The terminal box 1 is housed in the grooves 87 and 88 provided in the roof tile 80, and the first housing 20 has the grooves 8 and 88.
7. The second housing 30 enters the groove 88, and the third housing 40 is outside the roof tile. Here, the height h of the terminal box can be reduced to 6 to 8 mm as described above. Therefore, the amount of protrusion of the back surface 89 due to the depth L of the grooves 87 and 88 of the roof tile 80 is small, and the roof tile member can be present to form a blind groove, so that the above-described rain leak or fire spread to the field plate. It can be prevented. Furthermore, the outer shape can be shared with existing roof tiles, and the strength, durability, and aesthetics are not impaired.

In FIG. 7, as described above, the first housing 20 of the terminal box is provided in the groove 87 of the roof tile 80 and the groove 8 is formed in the groove 87.
The second housing 30 is inserted into the housing 8. Further, the roof tile 80 where the third housing 40 is located is provided with a roof tile step portion 90, and a part of the water return 91 is cut out.
In the roof tile step portion 90, the above-mentioned collars 43 and 44 and the rib 4 are provided.
5, 46 are inserted to prevent rainwater from entering the grooves 87, 88.

It should be noted that the contact surfaces of the roof tile step portion 90, the collars 43 and 44, and the ribs 45 and 46 may be inserted or applied with packing 92 or an adhesive shown in FIG. We can prevent invasion positively. Roof tile 8
If there is a dimensional margin above 0, the third housing can be positioned above to eliminate the roof tile step portion 90 and the notch of the water bar, and the roof tile shape can be simplified and the roof tile mold Manufacturing cost can be reduced.

[0053]

As described above, according to the present invention, the solar cell module in which the solar cell is sealed between the translucent front surface protection member and the back surface protection member is provided on the upper surface of the roof tile main body. A roof tile-integrated solar cell module comprising a terminal box that is housed in a recess and takes out the power lead of the solar cell module from the back side of the solar cell module to the outside through the recess, wherein the power lead is the solar cell. Of a flat plate-like terminal plate electrically connected to the positive electrode and the negative electrode of the above, and the terminal plate is an S-shaped crank having a first flat plate portion, a second flat plate portion and a third flat plate portion. The flat plate portion of No. 1 has one end electrically connected to the positive electrode and the negative electrode of the solar cell, extends substantially parallel to the back surface of the solar cell module, and has the other end outside the periphery of the solar cell module. The second flat plate portion is connected to the second flat plate portion, and the second flat plate portion extends from the connection portion with the first flat plate portion to the outside and the front surface side of the solar cell module, and the other end thereof is the third flat plate portion. The third flat plate part connected to the flat plate part and having one end connected to the second flat plate part has the other end connected to an external power cable, and at least one of the terminal plates. And at least a part of the power cable include an electrically insulating housing integrally formed of resin, and further, a part of the housing is bonded to a back surface protection member of the solar cell module. Therefore, it is possible to provide a roof tile-integrated solar cell module having a small thickness dimension and capable of reliably preventing rain.

[Brief description of drawings]

FIG. 1 is a top view of a terminal box according to an embodiment of the present invention.

FIG. 2 is a side view of the terminal box shown in FIG.

FIG. 3 is a side sectional view of the terminal box of FIG.

FIG. 4 is a top view of a solar cell module according to an embodiment of the present invention.

5 is a side sectional view of the solar cell module of FIG.

FIG. 6 is a side sectional view of a roof tile-integrated solar cell module according to an embodiment of the present invention.

7 is a partial bird's-eye view of the roof tile-integrated solar cell module of FIG.

FIG. 8 is a top view of an example of a conventional terminal box.

9 is a side sectional view of the terminal box of FIG. 8 attached to a solar cell module.

FIG. 10 is a side sectional view of a conventional roof tile-integrated solar cell module in which a module having the terminal box shown in FIG. 9 is attached to a roof tile.

FIG. 11 is a side sectional view of an example of a conventional roof tile-integrated solar cell module.

FIG. 12 is a perspective view for explaining the assembly of the roof tile-integrated solar cell module of FIG. 11.

[Explanation of symbols]

1: Terminal box, 10, 11: Terminal board, 12: Backflow prevention diode, 13: Core wire, 14: Power cable, 2
0: first housing, 21: opening space portion, 30: second
Housing, 40: third housing, 45: rib,
50: Solar cell module, 70: Frame, 72: Fixing bolt, 73: Fixing member, 60: Solar cell, 80:
Roof tile, 81: Recessed portion, 91: Water repellent, 151: Surface protection member, 158: Back surface protection member, D: Step portion, L1: First flat plate portion, L2: Second flat plate portion, L3: Third flat plate Department.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yujiro Watanuki             1-1 Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa             Within Fuji Electric Co., Ltd. (72) Inventor Hironori Nishihara             1-1 Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa             Within Fuji Electric Co., Ltd. (72) Inventor Takubun Watanabe             Asahi Kasei Co., Ltd. 106 Someya, Sakaimachi, Sarushima-gun, Ibaraki             In-house (72) Inventor Toshio Igarashi             Asahi Kasei Co., Ltd. 106 Someya, Sakaimachi, Sarushima-gun, Ibaraki             In-house (72) Inventor Tomotoshi Mizoda             Asahi Kasei Co., Ltd. 106 Someya, Sakaimachi, Sarushima-gun, Ibaraki             In-house (72) Inventor Masato Hamashima             Asahi Kasei Co., Ltd. 106 Someya, Sakaimachi, Sarushima-gun, Ibaraki             In-house F-term (reference) 2E108 KK04 LL04 MM01 NN07                 5F051 BA03 JA06 JA08 JA09

Claims (7)

[Claims] 1. A solar cell module in which a solar cell module in which a solar cell is sealed between a translucent surface protection member and a back surface protection member is housed in a recess provided on the upper surface of a roof tile main body. In the roof tile-integrated solar cell module including a terminal box for taking out the power lead of the solar cell module from the back side of the solar cell to the outside through the recess, the power lead is electrically connected to the positive electrode and the negative electrode of the solar cell. The terminal plate has a flat plate shape, and the terminal plate has an S-shaped crank shape having a first flat plate portion, a second flat plate portion, and a third flat plate portion. Electrically connected to the positive and negative electrodes of the solar cell, extending substantially parallel to the back surface of the solar cell module, and connecting the other end to the second flat plate portion outside the periphery of the solar cell module, The second flat plate portion extends from the connection portion with the first flat plate portion to the outside and the front surface side of the solar cell module, and the other end is connected to the third flat plate portion, and one end thereof is The roof tile-integrated solar cell module, wherein the third flat plate portion connected to the second flat plate portion has the other end connected to an external power cable. 2. The roof tile-integrated solar cell module according to claim 1, wherein the terminal plate is formed by bending a band-shaped flat plate into the S-shaped crank shape, and at least a part of the terminal plate and the electric power. A roof tile-integrated solar cell module, wherein at least a part of the cable includes an electrically insulating housing integrally formed of resin. 3. The roof tile-integrated solar cell module according to claim 2, wherein the housing has a first housing, a second housing, and a third housing that are integrally molded, The housing of No. 1 has an opening space portion for covering a part of the first flat plate portion with a resin and electrically connecting the first flat plate portion to the positive electrode and the negative electrode of the solar cell. And the second housing includes the first flat plate portion and the second flat plate portion.
Part of the flat plate part is covered with a resin, and a step part is provided at the connection part with the first housing. The third housing is a part of the second flat plate part and the third flat plate. A roof tile-integrated solar cell module, characterized in that the portion and at least a part of the power cable are covered with a resin, and the first housing is bonded to a back surface protection member of the solar cell module. 4. The roof tile-integrated solar cell module according to claim 1, wherein the power cable is arranged substantially parallel to a surface of the solar cell module.
At least a part of the solar cell module is arranged above the surface of the solar cell module. 5. The roof tile-integrated solar cell module according to claim 3 or 4, wherein the terminal plate is a pair of positive and negative metal flat plates arranged substantially in parallel, and the opening space portion of the first housing is provided. In, the part of the first flat plate portion of the terminal plate is exposed, and one of the exposed first plate portions is exposed.
The roof tile integrated solar cell module, characterized in that the flat plate part is divided, and a backflow prevention diode is electrically connected to the divided part. 6. The roof tile-integrated solar cell module according to claim 1, wherein the solar cell module has an upper flat plate portion, a lower flat plate portion, and a side plate portion at a peripheral portion thereof. The roof tile main body has a frame having a substantially U-shaped cross section, the opening of the U-shaped cross section is fitted around the module to fix and hold the module, and the concave portion of the roof tile main body has a plurality of through holes. Comprising a lower flat plate portion of the frame and a roof tile main body, an insertion fastening member to the through hole fixed to the lower flat plate portion,
The solar cell module and the roof tile main body are integrated with each other by fastening this plug-in fastening member with a fixing member for fixing the insertion tile to the roof tile main body from the back side of the recess. Solar cell module. 7. The roof tile-integrated solar cell module according to any one of claims 3 to 6, wherein the roof tile main body has a cutout portion in a water return portion provided on one side of the roof tile main body. Is a roof tile-integrated solar cell module, characterized in that the housing is provided with a rib that fits into the notch and fulfills the function of returning water.