JP2005009130A - Roof material separation type solar battery module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roof material separation type solar battery module capable of reducing installation man-hour and preventing the appearance from being impaired and having excellent maintenance property. <P>SOLUTION: A protection layer 2 on a light receiving face side, a solar battery 1, a protection layer 3 on a non-light receiving face side, and a rear surface reinforcing material 4 are laminated in vacuum, a ridge side end part of the rear surface reinforcing material 4 is bent to form a bent part 4a, and an eaves side end part is constituted by bending the protection layer 2 on the light receiving face side, the protection layer 3 on the non-light receiving face side, and the rear surface reinforcing material 4 are together bent into a U shape. The thus constituted solar battery module 10 forms a shape along a flat type roof material 70 and becomes integral with the flat type roof material 70 after installation to prevent the appearance from being impaired. Since this module can be installed by letting it slide along a surface of the flat type roof material 70, it is unnecessary to remove an existing flat type roof material 70, installation man-hour is reduced, and replacement work when a part of the solar battery module 10 is broken becomes easy. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a solar cell module in which photovoltaic elements that generate an electromotive force when irradiated with light are arranged and connected, and particularly to a roof material separation type solar cell module in which a roof material and a solar cell module are separated.
[0002]
[Prior art]
As the global environmental problems are highlighted, solar cells are highly expected as clean and renewable energy.
[0003]
Solar cells are roughly classified into crystalline solar cells and thin film solar cells. Production of crystalline solar cells using crystalline silicon as the main raw material has already begun on a commercial scale. In general, the structure of a solar cell module using such a solar cell is a building material separation type, a power generation element is covered with a filler, and a frame such as aluminum is attached to a light receiving surface covered with glass, This is used by being fixed to a frame installed on the roof.
[0004]
On the other hand, in a thin film solar cell using amorphous silicon, when a heat-resistant plastic film or the like is used as a substrate for a power generation element, the power generation element portion is flexible, so that it can be applied to a gently curved surface. Taking advantage of these features, steel sheet integrated solar cell modules have been produced. As a surface protection material on the light-receiving surface side, a weather-resistant resin film is applied instead of a glass plate, and it is bent to the surrounding area where the power generating elements are not arranged. It becomes possible to provide a lightweight solar cell roof.
[0005]
FIG. 12 is a perspective view showing a state in which the steel plate integrated solar cell module is installed. The steel plate integrated solar cell module 100 has a structure in which the steel plate integrated solar cell module 100 is directly installed on the waterproof sheet 72 disposed on the base plate 71. The output of the solar cell 101 is taken out by the cable 103 drawn from the terminal block 102, and is connected in series and in parallel with the adjacent module to obtain a predetermined voltage.
[0006]
In addition, for example, a building material integrated solar cell module having a structure in which a solar cell is mounted in a recess provided on the front side of a flat roof tile made of mortar or slate material is also produced.
FIG. 13 is a perspective view illustrating a state before the building material integrated solar cell module is assembled. The solar cell 201 and the output terminal box 202 attached to the back surface of the solar cell 201 are fitted into the recesses 211 and 212 drilled on the surface of the roof tile 210, and the output cable 203 is passed through the guide groove 213 to the roof. Take out from the upper edge 214 of the roof tile 210 and attach the plug 204 and socket 205 to the end. The building material integrated solar cell module 200 is configured as described above.
[0007]
FIG. 14 is a perspective view in which a finished product of a building material integrated solar cell module is installed adjacently.
A plug 204 and a socket 205 of adjacent building material integrated solar cell modules 200 are connected in series to obtain a predetermined voltage. On the other hand, the output cables 203 of the building material integrated solar cell modules 200 at both ends that are not connected in series connect the positive electrode and the negative electrode to the parallel connection bus 206 to form one solar cell unit.
[0008]
In addition to the general techniques related to the conventional solar cell module as described above, as a known technique for reducing the wiring work when laying the positive and negative conductor cables taken out of the solar cell module into a bipolar integrated connector There are the following (for example, refer to Patent Document 1).
[0009]
[Patent Document 1]
JP 2002-231989 (paragraph numbers [0030] to [0035], FIG. 2)
[0010]
[Problems to be solved by the invention]
As described above, building material separation type solar cell modules are generally used by installing and fixing a frame with a frame mounted on the roof. Although it is easy, there is no sense of unity with the roofing material and the appearance is impaired, and the use of glass for the solar cell module and the use of an iron mount for fixing increase the weight.
[0011]
As shown in FIG. 12, the steel plate integrated solar cell module 100 has a structure in which it is directly installed on a waterproof sheet 72 disposed on the base plate 71. When installing on an existing roof, the roof material is removed. Since it is necessary to perform the construction after the installation, it takes time for the installation work. In addition, it is excellent in aesthetics because it is integrated with the roofing material, but it takes time to replace the module when it is damaged.
[0012]
Since the building material integrated solar cell module 200 is heavy in materials such as mortar and cement used as the roof tile 210, the size of the module cannot be increased due to the installation work. Therefore, the size of one roof tile 210 must be relatively small, and when trying to obtain the output of the solar cell 201 with the output required at home, more modules than in the case where it is installed on a gantry. The cost increases because it must be installed.
[0013]
The solar cell 201 is connected to the adjacent building material-integrated solar cell module 200 until the output cable 203 drawn out of the solar cell 201 has a predetermined voltage, generally about DC 200 V at the inverter input voltage. A plurality of positive and negative electrodes are connected in series, and positive and negative output cables 203 that are not connected in series are connected to a parallel connection bus 206 to obtain a predetermined solar cell output. For this reason, when a plurality of building material integrated solar cell modules 200 are connected, the number of wiring connection locations and the amount of wiring increase, making the construction complicated, leading to an increase in the number of installation steps.
[0014]
The technique described in Patent Document 1 described above is intended to reduce wiring work by collecting the conductor cables taken out from the solar cell module into a battery-side connector as a pair of positive and negative electrodes. After that, wiring work for connecting the battery side connector of each solar cell module and the main line side connector provided in the main line cable is necessary.
[0015]
This invention is made | formed in view of such a point, It aims at providing the roof material isolation | separation type solar cell module excellent in maintainability, which can be laid at low cost, does not impair the beauty | look. .
[0016]
[Means for Solving the Problems]
In the present invention, in order to solve the above problems, at least the light receiving surface side protective layer, the non-light receiving surface side protective layer, the solar cell, and the back surface reinforcing material are integrally sealed and bent to a portion where the solar cell is not disposed. In a roof-type separated solar cell module that has been processed, the roof material separation is performed in a side-by-side roof in which a plurality of flat-type roof materials are installed so as to be overlapped adjacent to the left and right and upper and lower side edges. A portion where the solar cell module is bent along the shape of the flat roofing material is inserted by sliding along the flat roofing material with respect to a portion where the flat roofing material is adjacent to the top and bottom of the flat roofing material. A roof material-separated solar cell module is provided, wherein a plurality of the roof material-separated solar cell modules are laid on the surface of the flat roof material adjacent to each other on the left and right.
[0017]
In this way, the portion folded along the shape of the flat roof material of the roof material separation type solar cell module is aligned with the flat roof material with respect to the portion of the flat roof material adjacent to the top and bottom. It is possible to install without removing the existing flat roof material by laying on the surface of the flat roof material by installing multiple separated roof material solar cell modules adjacent to the left and right sides by sliding , Laying work can be reduced. Moreover, the replacement | exchange work when some roofing material separation type solar cell modules are damaged by fall of a fence etc. can also be constructed easily. Furthermore, an integrated view with the roofing material can be obtained in the same manner as the building material integrated solar cell module, and the appearance is excellent.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view showing a laminated structure of a roof material separation type solar cell module of the present invention. The upper side is the sunlight incident side, the left is the eaves side of the house, and the right is the building side. (Similarly, in the following figures, the eaves side and the building side, and when necessary, the sunlight incident side is indicated by arrows in the drawings, and the description is omitted).
[0019]
The solar cell 1 is a single sheet formed of a photoelectric conversion layer made of an amorphous silicon thin film or the like formed on a polymer material film substrate having a thickness of 10 μm to 100 μm, and an electrode layer of Ag, Al, or ZnO. A thin film solar cell is used.
[0020]
The roof material separation type solar cell module 10 (hereinafter abbreviated as a solar cell module) is configured as follows using the solar cell 1 described above.
On the light incident side of the solar cell 1, a light receiving surface composed of a sealing material (not shown) made of an ethylene-vinyl acetate copolymer having a thickness of 0.3 mm to 0.4 mm and a fluororesin-based protective film The protective layer 2 is disposed. Moreover, the non-light-receiving surface side protective layer 3 comprised by the sealing material which consists of an ethylene-vinyl acetate copolymer is distribute | arranged to the back side of sunlight incident side. And these are fixed on the back surface reinforcing material 4 using a stainless steel material, a galvanium steel plate, etc. by vacuum lamination.
[0021]
And the ridge side edge part of the back surface reinforcing material 4 is folded back to the sunlight incident side, and this is defined as a bent part 4a. Moreover, the eaves side of the back surface reinforcing material 4 is a shape of the flat roof material 70 on the side opposite to the sunlight incident side by collecting the light receiving surface side protective layer 2, the non-light receiving surface side protective layer 3 and the back surface reinforcing material 4. A U-shape is bent along The space generated thereby accommodates a two-core cable 30 serving as a trunk line when a plurality of solar cell modules 10 are connected in parallel. Moreover, the terminal block 20 for connecting the adjacent solar electronic module 10 is accommodated in the right-and-left edge part of the direction orthogonal to the ridge direction from the eaves in this space.
[0022]
FIG. 2 is a cross-sectional view of a state in which the solar cell module is laid on a flat roof material (detailed portions such as the layer configuration of the solar cell module 10 are omitted).
A waterproof sheet 72 is laid on the sloped ground plate 71, and a flat roof material 70 using a material such as mortar or cement is connected to the eaves from the eaves up and down and adjacent to each other on the left and right. It is provided by fixing the end of the ridge side to the base plate 71 by nailing.
[0023]
The solar cell module 10A is laid on the flat roof material 70A. Similarly, the solar cell module 10E is laid on the flat roof material 70E, and the solar cell module 10I is laid on the flat roof material 70I. . The flat roof materials 70A, 70E, and 70I are the same as the flat roof material 70, and the solar cell modules 10A, 10E, and 10I are the same as the solar cell module 10.
[0024]
The solar cell module 10A is laid by lifting the eaves-side end of the flat roof material 70A to be laid and the flat roof material 70E positioned on the upper side, so that the solar cell module 10A is moved along the surface of the flat roof material 70A. Can be done by sliding. The same applies to the solar cell modules 10E and 10I (details of the laying operation will be described later).
[0025]
Thus, since the shape of the solar cell module 10 is along the surface shape of the flat roof material 70, there is an integrated view with the flat roof material, and the appearance is not impaired. Furthermore, since the existing flat roof tile can be laid without being removed, and laying is possible by sliding along the surface of the flat roof material 70, the laying work is reduced and the damaged solar cell module 10 Replacement work is also facilitated.
[0026]
Further, by providing the bent portion 4a on the upper end of the solar cell module 10, the light receiving surface side protective layer 2 and the non-light receiving can be prevented by preventing rainwater from being blown from the upper end due to wind and rain, or by a fire due to a fire in an adjacent house. Even when the surface-side protective layer 3 burns, it is possible to prevent the surface-side protective layer 3 from burning to the base plate 71 and the waterproof sheet 72 on the back surface of the solar cell module 10.
[0027]
Next, laying of the solar cell module 10 will be described.
FIG. 3 is a perspective view showing the correspondence between the solar cell module and the flat roof material. The flat roof materials 70B to 70D and 70F to 70H are the same as the flat roof material 70.
[0028]
In this embodiment, one solar cell module 10A is laid on four flat roof materials 70A, 70B, 70C and 70D arranged side by side as shown in the figure. Accordingly, the left-right dimension L1 of the solar cell module 10 is longer than the left-right dimension L2 of the flat roof material 70.
[0029]
In FIG. 2, the solar cell module 10 </ b> A has been described as being laid on the flat roof material 70 </ b> A, but actually, the solar cell module 10 </ b> A is divided into four pieces including the flat roof materials 70 </ b> B to 70 </ b> D located next to the flat roof material 70 </ b> A. On the other hand, the solar cell module 10A is laid.
[0030]
Here, the installation work of the solar cell module 10A will be described.
First, the bent portion 4a of the solar cell module 10A is inserted into the eaves side end portions of the flat roof materials 70E to 70H located on the ridge side upper stage of the flat roof materials 70A to 70D to be laid on the solar cell module 10A. Then, the eaves side end of the solar cell module 10A is fitted into the eaves side end of the flat roof materials 70A to 70D. In these operations, the flat roof materials 70A to 70D and the eaves side end portions of the flat roof materials 70E to 70H located on the flat roof materials 70A to 70D are lifted, and the solar cell module 10A is moved along the surfaces of the flat roof materials 70A to 70D. It can be done by sliding.
[0031]
The laying position matches the left end edge of the solar cell module 10A and the left end edge of the flat roof material 70A, and the right end edge of the solar cell module 10A and the right end edge of the flat roof material 70D. This completes the installation of the solar cell module 10A.
[0032]
In this way, by making the left-right dimension L1 of the solar cell module 10 longer than the left-right dimension L2 of the flat roof material 70, one solar cell module 10 is laid on the plurality of flat roof materials 70. Therefore, the area of the solar cell 1 accommodated in one solar cell module 10 can be increased.
[0033]
FIG. 4 is a perspective view when the solar cell module is laid on a flat roof material. The flat roof materials 70J to 70L are the same as the flat roof material 70.
One solar cell module 10A is laid so as to cover the upper surfaces of the four flat roof materials 70A to 70D laid adjacent to the left and right in the direction perpendicular to the building from the eaves. Similarly, in the upper stage, solar cell modules 10E and 10I are laid so as to cover the upper surfaces of flat roof materials 70E to 70H and 70I to 70L adjacent to the left and right.
[0034]
Subsequently, the solar cell module 10 is also laid in a direction perpendicular to the eaves from the eave, and finally, one solar cell power generation unit is configured.
FIG. 5 is a diagram showing the configuration of the solar cell power generation unit. The solar cell modules 10B to 10D, 10F to 10H, and 10J to 10L are the same as the solar cell module 10.
[0035]
In the same manner as described above, solar cell modules 10B, 10C, and 10D are laid in order on the right side of solar cell module 10A, and the left and right sides are connected (connection will be described later). Similarly, the solar cell modules 10F, 10G, and 10H are sequentially laid and connected to the right side of the solar cell module 10E, and the solar cell modules 10J, 10K, and 10L are sequentially laid and connected to the right side of the solar cell module 10I. As described above, one surface of the solar cell power generation unit including the 12 solar cell modules 10A to 10L is configured.
[0036]
Next, the connection for obtaining an output from the solar cell power generation unit configured as described above will be described.
FIG. 6 is a wiring circuit diagram of a solar cell power generation unit composed of 12 solar cell modules.
[0037]
In the solar cell module 10A, a male connector 51A and a female connector 41A, and a male connector 52A and a female connector 42A are electrically connected via a two-core cable 30A, and form a positive electrode and a negative electrode, respectively. The negative electrode side of the solar cell 1A is connected to the negative electrode side of the two-core cable 30A, and the positive electrode side is connected to the positive electrode side of the two-core cable 30A via the backflow prevention diode 24A.
[0038]
Since the same applies to the other solar cell modules 10B to 10L, the reference numerals are omitted except for necessary ones. The solar cell 1 </ b> A is a member of the solar cell module 10 </ b> A and is the same as the solar cell 1. For other members as well, hereinafter, the capital letter indicates that the member has the alphabet.
[0039]
In the solar cell power generation unit, the female connector 41D of the solar cell module 10D and the female connector 41H of the solar cell module 10H are connected by the male positive relay cable 61. Similarly, the female connector 42D and the female connector 42H are male. It connects with the type | mold negative electrode relay cable 62. FIG.
[0040]
Further, the male connector 51E of the solar cell module 10E and the male connector 51I of the solar cell module 10I are connected by the female positive relay cable 63. Similarly, the male connector 52E and the male connector 52I are connected to the female negative relay cable. Connect with 64.
[0041]
In a state of being connected in this way, the solar cell module 10L laid on the uppermost right side in the direction perpendicular to the eave from the eave is connected to a connection box 91 installed indoors by an output cable. The DC outputs of the solar cell modules 10 </ b> A to 10 </ b> L assembled in the connection box are converted into alternating current by the inverter 92. The output of the solar cell 1 is 200V DC, and after being converted to AC 100V by the inverter 92, power is supplied to the system side distribution board.
[0042]
When the required capacity is insufficient on one side, the output of the solar cell module 10 additionally installed at the other corner is connected in parallel in the connection box 91. Although it depends on the installation conditions of the building, the installation surface shown in FIG. 6 is generally southwest, and when installed at the other corner, it is east or southwest.
[0043]
Thus, in the solar cell power generation unit configured by laying one solar cell module 10 on a plurality of flat roof materials 70, the area of the solar cell 1 accommodated in one solar cell module 10 is as follows. Therefore, it is possible to output a voltage up to about DC 200 V as the input voltage of the inverter 92 without directly connecting the adjacent solar cell modules 10 to each other. In addition, the number of solar cell modules 10 to be laid can be reduced.
[0044]
Next, the electrode structure of the solar cell module 10 will be described.
7 is a cross-sectional view of the solar cell module in the X1-X1 direction of FIG.
A first terminal block 20a is installed at the right edge of the solar cell module 10, and a second terminal block 20b is installed at the left edge.
[0045]
The first terminal block 20a is provided with a female connector 41 forming a positive electrode and a female connector 42 forming a negative electrode. A plug 41a is accommodated inside the female connector 41, and a plug 42a is accommodated inside the same 42. Has been. On the other hand, the second terminal block 20 b is provided with a male connector 51 that forms a positive electrode and a male connector 52 that forms a negative electrode. The socket 51 a is inside the male connector 51, and the socket 52 a is inside the same 52. Is housed. These connectors are made of thermosetting elastomers such as EPDM and polychloroprene, and elastic and electrically insulating materials.
[0046]
And the plug 41a and the right end part of the positive electrode side conductor 31 of the two-core cable 30, and the socket 51a and the left end part of the same cathode side conductor 31 are connected by crimping or soldering. Thereby, the plug 41a, the positive electrode side conductor 31, and the socket 51a are electrically connected to each other and are configured as a positive electrode. Similarly, the plug 42a and the right end portion of the negative electrode side conductor 32 of the two-core cable 30 and the socket 52a and the left end portion of the negative electrode side conductor 32 are connected by crimping or soldering. As a result, the plug 42a, the negative electrode side conductor 32, and the socket 52a are electrically connected to form a negative electrode.
[0047]
The connection between the positive electrode and the negative electrode of the solar cell 1 and the positive electrode and the negative electrode described above is performed inside the first terminal block 20a and the second terminal block 20b.
Regarding the connection of the positive electrode, first, the lead wire 21a made of a conductive film fixed by vacuum lamination to the positive electrode side of the back electrode (not shown) of the solar cell 1 is pulled out to the hole 22a, and then the anode side connection line to the hole 22a. 23, and solder both. The other end of the anode side connection line 23 is connected to the anode of the backflow prevention diode 24, and the cathode is connected to the cathode side connection line 25. Finally, the other end of the cathode side connection line 25 is caulked and fixed to the positive electrode side core 31 of the two-core cable 30 with a caulking sleeve 33.
[0048]
Similarly for the negative electrode, after the lead wire 21b made of a conductive film fixed to the negative electrode side of the back electrode (not shown) of the solar cell 1 by vacuum lamination is drawn to the hole 22b, the connection line 26 is passed through the hole 22b, Solder both. Then, the other end of the connection line 26 and the negative electrode side core 32 of the two-core cable 30 are connected by being caulked and fixed by a caulking sleeve 34.
[0049]
8 is a cross-sectional view in the X2-X2 direction of FIG. The same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted.
A hole passing through the non-light-receiving surface side protective layer 3, the back surface reinforcing material 4, and the first terminal block 20a is formed at the eaves side end portion of the lead wire 21a fixed to the positive electrode (not shown) of the solar cell 1 by vacuum lamination. 22a is opened. As described above, the positive electrode of the solar cell 1 is finally connected to the caulking sleeve 33 via the lead wire 21a, the anode side connection wire 23 through the hole 22a, the backflow prevention diode 24, and the cathode side connection wire 25. Connected to the positive electrode core 31 of the two-core cable 30. After such wiring processing, the first terminal block 20a is filled with a silicon-based adhesive, and the terminal block lid 27a is closed to form a waterproof structure.
[0050]
9 is a cross-sectional view in the X3-X3 direction of FIG. The same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted.
Similarly to FIG. 8, the non-light-receiving surface side protective layer 3, the back surface reinforcing material 4, and the second terminal block 20 b are attached to the end portion of the lead wire 21 b fixed to the negative electrode (not shown) of the solar cell 1 by vacuum lamination. A hole 22b penetrating through is formed. As described above, the negative electrode of the solar cell 1 is connected to the negative electrode-side core 32 of the two-core cable 30 by the caulking sleeve 34 through the lead wire 21b and the connection line 26 through the hole 22b. After such wiring processing, like the first terminal block 20a, the second terminal block 20b is also filled with a silicon-based adhesive, and the terminal block lid 27b is closed to form a waterproof structure.
[0051]
Thus, the connection between the positive electrode and the negative electrode of the solar cell module 10 is completed.
Finally, connection of the solar cell module 10 having the above electrode structure will be described.
[0052]
10 is a cross-sectional view in the X4-X4 direction of FIG. 5 after the solar cell module is connected. The solar cell modules 10A, 10B, 10C, and 10D are shown adjacently connected to each other, with the left end solar cell module 10A showing the right end and the right end solar cell module 10D showing the left end.
[0053]
Connection between adjacent solar cell modules 10A and 10B will be described.
When the adjacent solar cell modules 10A and 10B are connected, the plug 41Aa accommodated in the female connector 41A of the solar cell module 10A and the socket 51Ba accommodated in the male connector 51B of the solar cell module 10B are connected and fitted. Similarly, the plug 42Aa accommodated in the female connector 42A of the solar cell module 10A and the socket 52Ba accommodated in the male connector 52B of the solar cell module 10B are connected and fitted.
[0054]
A wedge-shaped fitting portion is provided on the inner circumferences of the female connectors 41A and 42A and the outer circumferences of the male connectors 51B and 52B.
Regarding the connection between the solar cell modules 10B and 10C, the plugs 41Ba and 42Ba included in the female connectors 41B and 42B of the solar cell module 10B, and the socket 51Ca included in the male connectors 51C and 52C of the solar cell module 10C, This is done by connection fitting with 52Ca.
[0055]
Similarly, the connection between the solar cell modules 10C and 10D is also included in the plugs 41Ca and 42Ca included in the female connectors 41C and 42C of the solar cell module 10C and the male connectors 51D and 52D of the solar cell module 10D. This is done by connecting and fitting the sockets 51Da and 52Da.
[0056]
These connection operations can be performed by sliding the solar cell module 10 in the same manner as laying on the flat roof material 70.
FIG. 11 is a perspective view when connecting adjacent solar cell modules.
[0057]
Female terminal 41A and 42A are provided in terminal block 20aA of solar cell module 10A, and male type connectors 51B and 52B are provided in terminal block 20bB of solar cell module 10B.
[0058]
As shown in the figure, adjacent solar cell modules 10A and 10B are connected by plug-in coupling female connectors 41A and 42A of solar cell module 10A and male connectors 51B and 52B of solar cell module 10B. be able to.
[0059]
Thus, by plug-in coupling the connectors of the solar cell modules 10 adjacent to the left and right, the solar cell modules 10 adjacent to the left and right can be connected in a cableless manner simultaneously with the laying of the solar cell module 10. The wiring work after laying the solar cell module 10 is greatly reduced.
[0060]
Further, by arranging male connectors 51 and 52 on one side edge portion and female connectors 41 and 42 on the other side edge portion, one type of solar cell modules 10 are successively connected in parallel and installed. This improves the efficiency of laying work.
[0061]
In the above description, the number of modules constituting one surface of the solar cell power generation unit has been described as twelve. However, the number of solar cell modules 10 and the number of installed modules per step are set according to the required capacity and installation space. can do.
[0062]
In addition, the four flat roof materials 70 are configured to be covered by one solar cell module 10, but by changing the left and right dimension L1 of the solar cell module 10, configurations corresponding to other numbers are possible. is there. Moreover, although the right and left edge part of the flat roof material 70 and the right and left edge part of the solar cell module 10 are laid in alignment, these do not need to be laid in alignment and both edge parts are attached. You may lay out.
[0063]
Further, the female connectors 41 and 42 are provided on the first terminal block 20a, and the male connectors 51 and 52 are provided on the second terminal block 20b. It is good also as a structure provided in the one terminal block 20a, and providing the female connectors 41 and 42 in the 2nd terminal block 20b.
[0064]
Furthermore, the positive electrode is connected to the first terminal block 20a and the negative electrode is connected to the second terminal block 20b. Conversely, the negative electrode is connected to the first terminal block 20a, and the positive electrode is connected to the positive terminal. These connections may be made at the second terminal block 20b.
[0065]
【The invention's effect】
As described above, according to the present invention, since it has a shape along the flat roof material, an aesthetic appearance equivalent to that of the building material integrated solar cell module can be obtained. Since laying is possible by sliding along the surface of the flat roof material, it is not necessary to remove the existing flat roof material, and the efficiency of the laying work is improved. In addition, the replacement work when a part of the solar cell modules is damaged becomes easy, and the maintainability is good.
[0066]
Further, since the adjacent solar cell modules are cable-free, the wiring operation and the laying operation of the adjacent solar cell modules can be performed simultaneously and extremely quickly and reliably. Thus, in addition to being able to be laid by sliding along the flat roof material, the number of solar cell module laying steps can be significantly reduced, and the solar cell power generation cost can be greatly reduced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a laminated structure of a roof material separation type solar cell module of the present invention.
FIG. 2 is a cross-sectional view of a state in which a solar cell module is laid on a flat roof material.
FIG. 3 is a perspective view showing correspondence between a solar cell module and a flat roof material.
FIG. 4 is a perspective view when a solar cell module is laid on a flat roof material.
FIG. 5 is a diagram showing a configuration of a solar cell power generation unit.
FIG. 6 is a wiring circuit diagram of a solar cell power generation unit including 12 solar cell modules.
7 is a cross-sectional view of the solar cell module in the X1-X1 direction of FIG.
8 is a cross-sectional view in the X2-X2 direction of FIG.
9 is a cross-sectional view in the X3-X3 direction of FIG.
10 is a cross-sectional view in the X4-X4 direction of FIG. 5 after the solar cell module is connected.
FIG. 11 is a perspective view when connecting adjacent solar cell modules.
FIG. 12 is a perspective view showing a state where a steel plate integrated solar cell module is installed.
FIG. 13 is a perspective view showing a state before assembly of the building material integrated solar cell module.
FIG. 14 is a perspective view in which a finished product of a building material integrated solar cell module is installed adjacently.
[Explanation of symbols]
1 Solar cell
2 Photosensitive surface side protective layer
3 Non-light-receiving surface side protective layer
4 Back reinforcement
10 Solar cell module
20 Terminal block
70 Flat roofing material

Claims (5)

Roof material separation type solar cell module that is integrally sealed with at least a light-receiving surface side protective layer, a non-light-receiving surface side protective layer, a solar cell, and a back surface reinforcing material, and has been subjected to bending processing on a portion where the solar cell is not disposed In
In a horizontal type roof in which a plurality of flat roof materials are installed so as to overlap and adjoin the left and right and upper and lower side edges, the roof material separation type solar cell module is formed into the shape of the flat roof material. A portion bent along the top and bottom of the flat roof material is inserted by sliding along the surface of the flat roof material with respect to a portion where the flat roof material is adjacent to the top and bottom, and a plurality of roofs adjacent to the left and right A roof material-separated solar cell module, wherein the material-separated solar cell module is laid on the surface of the flat roof material. In the direction perpendicular to the eaves from the eaves, the left-right dimension of the roofing material separated solar cell module is longer than the left-right dimension of the flat roofing material, and on the plurality of flat roofing materials, The roof material separation type solar cell module according to claim 1, wherein the roof material separation type solar cell module is laid. The roof material separation type solar cell module according to claim 1, wherein the roof material separation type solar cell module is subjected to water return and fireproof bending processing on an upper end thereof. Provided with terminal blocks on the left and right side edges of the back side where the lower end of the roofing material separated solar cell module has been bent, connected in parallel with the output of the solar cell, and attached a plug-in type connector. The output of the solar cell is taken out to the outside, the connectors of the roofing material separation type solar cell module adjacent to the left and right are plugged in, and the solar cells are connected in parallel. The roof material separation type solar cell module according to claim 1. The connector provided on the terminal block disposed on the left and right side edges of the roofing material separated solar cell module has a male connector on one side edge and a female connector on the other side edge. The roof material separation type solar cell module according to claim 1, wherein

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