JP3540590B2 - Building material integrated solar panel - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a building material-integrated solar cell panel that can be used as a roofing material.
[0002]
[Prior art]
Conventionally, various methods for installing a solar cell panel on a roof have been proposed. The installation method mainly consists of (1) a method of installing a base on this tile and fixing the solar cell panel on this base when the tile is already covered. A method in which a metal plate is roofed and a gantry is installed on this metal plate, and the solar cell panel is fixed to this gantry. (3) The solar cell panel itself functions as a roofing material, and is placed on a field board in the same way as a tile. There is a method of roofing solar panels.
[0003]
[Problems to be solved by the invention]
According to the above methods (1) and (2), a gap is formed between the back surface of the solar cell panel and the roof by the mount, so that the solar cell is cooled by the air passing through the gap to prevent a decrease in power generation efficiency. Although it has the advantage of being able to do so, it has the disadvantage that workability is inferior due to the necessity of installing a gantry. On the other hand, the method (3) does not require a frame, and thus has an advantage such as easy installation work. However, since the solar cell panel is in close contact with the field plate, air flows on the back side of the solar cell panel. Disadvantageously, the solar cell cannot be cooled.
[0004]
The present invention has been made in view of the above circumstances, and provides a building material-integrated solar panel capable of cooling a solar cell by forming a flow of air on the back surface side of the solar cell by eliminating the need for a stand and facilitating installation work. The purpose is to:
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, the building material-integrated solar cell panel of the present invention has a gap between a fire-resistant support plate having side walls on both sides of a bottom plate and a bottom plate of the fire-resistant support plate. A first ventilation hole is formed on the eaves side of the refractory support plate, and the solar cell panel covers the solar cell and the periphery of the solar cell. And a second ventilation hole is formed on the eaves side of the peripheral frame body, and a third ventilation hole is formed on the ridge side of the peripheral frame body. The air that has entered through the hole and the second ventilation hole exits from the third ventilation hole through the gap and enters the first air hole of another building material-integrated solar cell panel that is disposed adjacently above. characterized in that it is configured to.
[0006]
With the above configuration, the fire-resistant support plate is placed on the roof base plate, for example, by inserting a screw through a through hole provided in the bottom plate portion and screwing the screw into the base plate, thereby mounting the fire-resistant support plate on the roof plate. Can be fixed, so that a stand is not required. And even if the said bottom plate part is arrange | positioned in contact with a field board, there exists a space | gap between a solar cell panel and a bottom plate part, and since this space | gap communicates with outside air, the back side of a solar cell panel Air flows through the air to cool the solar cells. Of course, since it is the fire-resistant support plate that is arranged in contact with the base plate, it is possible to meet the demand for fire prevention. Furthermore, with the above configuration, when a plurality of building material-integrated solar cell panels are arranged on the roof, a continuous air flow from the eaves side to the ridge side is formed on the back side of each solar cell panel. And the solar cell can be efficiently cooled.
[0007]
Further, the building material-integrated solar cell panel of the present invention includes an intermediate member provided between the refractory support plate and the solar cell panel, the intermediate member having a shape protruding outward from the periphery of the solar cell panel. It is characterized by having .
[0008]
With the above configuration, the whole or a part of the configuration (for example, a bend formed at an end) for connecting rainwater with upper and lower or left and right adjacent other building material-integrated solar cell panels is provided. It can be provided in the intermediate frame member, and when it is provided in the peripheral frame of the solar cell panel, the processing complexity of the peripheral frame can be prevented.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a building material-integrated solar cell panel of this embodiment, and FIG. 2 is an exploded perspective view of the panel.
[0012]
The refractory support plate 1 is made of, for example, a metal plate such as an aluminum plate or a galvanized steel plate, and is formed by bending both sides of a bottom plate portion 1a to form side wall portions 1b and bending the upper portion of each side wall portion 1b to form a flange portion 1c. ing. The side wall portion 1b is higher in height from the back side (ridge side) to the near side (eave side) of the drawing, and has a first ventilation hole 1f at an end face on the eave side. A through hole 1d through which a screw nail is inserted is formed at the center of the bottom plate portion 1a. Further, a screw hole 1e into which a screw is screwed at each of two places is formed in each flange portion 1c.
[0013]
The solar cell panel 2 includes a solar cell 2a and a peripheral frame 2b that covers and supports the solar cell 2a. The solar cell 2a is formed by forming a plurality of solar cells on the back side of a transparent glass substrate. In addition, a waterproof connector (not shown) for taking out power is provided on the back side. The peripheral frame 2b is made of, for example, aluminum, has a second ventilation hole 2c on the front side (eave side) in the drawing (front side), and is not shown on the back side (ridge side) (rear side). It has a third ventilation hole. On both side surfaces, two through holes 2d into which screws are inserted are formed. Further, a receiving portion 2e having a concave cross section is provided in the lateral direction on the upper surface side of the peripheral frame 2b and on the back side (ridge side) of the solar cell 2a.
[0014]
The intermediate frame member 3 is made of, for example, a metal plate such as an aluminum plate or a galvanized steel plate, and has a shape protruding outward from the periphery of the solar cell panel 2 in an eaves shape. A bent portion 3a that is curved downward is formed on the front side (eave side) of the drawing of the portion that protrudes like an eave. The bent portion 3a engages with the receiving portion 2e of another building material-integrated solar cell panel disposed adjacent to the lower side. Further, among the portions that protrude like an eave, a bent portion 3b that is formed to be curved upward is formed at the end of the right portion of the drawing, and is formed to be curved downward at the end of the left portion of the drawing. A bent portion 3c is formed. Then, in a pair of building material-integrated solar cell panels disposed adjacent to each other on the left and right, the bent portion 3c of one panel is engaged with the bent portion 3b of the other panel from above. Further, of the portions that protrude like eaves, through holes 3d corresponding to the screw holes 1e formed in each flange portion 1c of the refractory support plate 1 are formed in the right and left portions of the drawing. .
[0015]
An upright frame portion 3e is formed around the center square hole of the intermediate frame member 3. The upright frame portion 3e corresponds to the shape and size of the inner peripheral side of the peripheral frame 2b of the solar cell panel 2. Screw holes 3f corresponding to the through holes 2d formed in the peripheral frame 2b of the solar cell panel 2 are formed in the right and left portions of the standing frame 3e in the drawing. At the front (eave side) portion and the back (ridge side) portion of the standing frame 3e in the drawing, the second ventilation hole 2c and the third ventilation hole of the solar cell panel 2 are not blocked. , A notch 3 g is formed.
[0016]
Next, an example of an installation method of a building material-integrated solar cell panel will be described with reference to FIGS. 2 and 3, but is not limited to the installation method described below. First, the intermediate frame member 3 is placed on the fire-resistant support plate 1, the screw 4 is inserted into the through hole 3 d of the intermediate frame member 3, and screwed into the screw hole 1 e of the fire-resistant support plate 1 to obtain the fire resistance. A combined body of the support plate 1 and the intermediate frame member 3 is obtained in advance. Then, the combined body is placed on the base plate 7, the two screw nails 6 are inserted through the through holes 1 d of the fire-resistant support plate 1, and screwed into the base plate 7 to connect the fire-resistant support plate 1 to the base plate 7. Fixed to. Next, among the wirings connected to the solar cell 2a, the wiring for the solar cell 2a of the panel arranged on the upper side (ridge side) is passed through one of the third ventilation holes. Then, the solar cell panel 2 is placed on the intermediate frame member 3, the screws 5 are inserted into the through holes 2 d of the solar cell panel 2, and screwed into the screw holes 3 f of the intermediate frame member 3. Next, another building material-integrated solar cell panel is arranged on the upper side (building side) in the same procedure, but is pulled out from the third ventilation hole in the lower (building side) building material-integrated solar cell panel. The above-mentioned wiring is passed through the first ventilation hole 1f in another building material-integrated solar cell panel on the upper side (eave side) and connected to the solar cell 2a, and another wiring of this solar cell 2a is connected. Is passed through one of the third ventilation holes in the same manner as described above. Hereafter, if this operation is performed sequentially, as shown in FIG. 3, a plurality of building material-integrated solar cell panels can be arranged in a tile shape on the base plate 7 and the solar cells 2a can be connected in series. . As for the building material-integrated solar cell panels adjacent to each other in the lateral direction, the bent portion 3c of one panel is engaged with the bent portion 3b of the other panel from above.
[0017]
In the case of the building material-integrated solar cell panel having the above configuration, the fire-resistant support plate 1 is disposed on the roof plate 7 of the roof, and the screw nail 6 is inserted through the through hole 1d of the bottom plate portion 1a and screwed into the roof plate 7. Thus, the fire-resistant support plate 1 can be fixed to the roof, so that a gantry is not required and the installation work becomes easy. Even if the bottom plate 1a is arranged in contact with the base plate 7, there is a gap between the solar cell panel 2 and the bottom plate 1a, and this gap communicates with the outside air. Air flows on the back side of the solar cell 2 to cool the solar cell 2a. Of course, since the fire-resistant support plate 1 is in contact with the base plate 7, it is possible to meet the demand for fire prevention.
[0018]
A configuration for connecting the building material integrated solar cell panels adjacent to each other vertically or horizontally and for flowing rainwater, for example, providing a configuration corresponding to the bent portions 3a, 3b, 3c in the peripheral frame 2b of the solar cell panel 2. Thus, a configuration in which the intermediate frame member 3 is unnecessary may be adopted. However, by adopting a configuration in which the intermediate frame member 3 is provided with the bent portions 3a, 3b, 3c as in this embodiment, the sun The processing complexity of the peripheral frame 2b of the battery panel 2 can be prevented.
[0019]
Further, the gap between the solar cell panel 2 and the bottom plate portion 1a of the refractory support plate 1 may be communicated with the outside air by any method, but if it is configured as in this embodiment, it becomes as shown in FIG. As shown, air enters through the first ventilation hole 1f and the second ventilation hole 2c, and exits from the third ventilation hole via the gap between the fire-resistant support plate 1 and the solar cell panel 2. . Then, the air that has flowed out from the third ventilation hole enters the first ventilation hole 1f of another building material-integrated solar cell panel arranged adjacently on the upper side (eave side). Therefore, a continuous flow of air from the eaves side to the ridge side is formed on the back side of each solar cell panel 2, and the solar cells 2a can be efficiently cooled. Even if there is no second ventilation hole 2c, a continuous air flow from the eaves side to the ridge side is formed on the back side of the solar cell panel 2, but it is better to have the second ventilation hole 2c. Since relatively cool air existing on the surface side of the building material-integrated solar cell panel can be taken in, the cooling efficiency is improved.
[0020]
The fixing of the refractory support plate 1 to the base plate 7 is not limited to the above-described method, and may be performed by the following method. For example, in the case of a roof having a wooden structure, as shown in FIG. 5, stud screws 15 are fixed to the square pipe steel 12 at predetermined intervals, and the screw portions are projected from the upper surface of the square pipe steel 12. Then, the square pipe steel 12 is laterally passed over the rafters 11 provided in the vertical direction, and a field board 13 and an asphalt roofing 14 are provided so as to be flush with the upper surface of the square pipe steel 12. The fire-resistant support plate 1 of the building material-integrated solar cell panel is formed with a through hole (preferably a long hole in the vertical or horizontal direction) through which the stud screw 15 is inserted. This through hole may be formed in a portion to be covered by the solar cell panel 2 or may be formed in a portion that is not covered. By inserting the stud screw 15 into the through hole and screwing a nut screwed into the stud screw 15, the building material-integrated solar cell panel can be fixed to the roof.
[0021]
In the case of a roof having a steel structure, as shown in FIG. 6, stud screws 25 are fixed to the purlin C steel 22 at predetermined intervals, and the screw portions are projected from the upper surface of the purlin C steel 22. Then, the purlin C steel 22 is laterally passed over the steel frame 21 provided in the vertical direction, and the base plate 23 and the asphalt roofing 24 are mounted on the purlin C steel 22. Thereafter, the building material-integrated solar cell panel may be attached in the same manner.
[0022]
【The invention's effect】
As described above, according to the present invention, since a mount is not required, the installation work is facilitated, and further, since the air flows on the back side of the solar cell, the solar cell can be cooled.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a building material-integrated solar cell panel according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view showing a building material-integrated solar cell panel according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view of a state in which the building material-integrated solar cell panel according to the embodiment of the present invention is installed on a roof, as viewed from a direction.
FIG. 4 is a cross-sectional view showing a flow of air corresponding to FIG.
FIG. 5 is a cross-sectional view showing an example of a roof structure for mounting the building material-integrated solar cell panel of the present invention.
FIG. 6 is a cross-sectional view showing another example of a roof structure for mounting the building material-integrated solar cell panel of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fire-resistant support plate 1a Bottom plate part 1b Side wall part 1f First ventilation hole 2 Solar cell panel 2a Solar cell 2b Surrounding frame 3 Intermediate frame member 3a Bending part 3b Bending part 3c Bending part 3e Standing frame part 4 Screw 5 Screw 6 screw nail 7 field board

Claims (2)

A fire-resistant support plate having side walls on both sides of the bottom plate portion, and a solar cell panel provided with a gap between the bottom plate portion of the fire-resistant support plate,
A first ventilation hole is formed on the eaves side of the fire-resistant support plate,
The solar cell panel includes a solar cell and a peripheral frame that covers the periphery of the solar cell and supports the solar cell, and a second ventilation hole is provided on the eaves side of the peripheral frame and on the ridge side. Third ventilation holes are respectively formed,
The air entering through the first ventilation hole and the second ventilation hole exits through the gap through the third ventilation hole, and the first of the other building material-integrated solar cell panels disposed adjacently above. A building material-integrated solar cell panel configured to enter an air hole. 2. The building material according to claim 1, further comprising an intermediate member provided between the fire-resistant support plate and the solar cell panel, the intermediate member having a shape protruding outward from the periphery of the solar cell panel in an eaves shape. 3. Body type solar panel.

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