JP3500759B2 - Architectural exterior panel with power generation function - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building exterior panel having a power generating function suitable as a roof of a house or an outer wall of a building.

[0002]

2. Description of the Related Art In recent years, various solar power generation systems to be installed in buildings such as buildings and ordinary houses have been proposed and put into practical use as part of efforts to address global environmental problems.
Usually, the solar power generation system is mainly composed of a plurality of solar cell modules installed on the roof of a building or a roof of a house, and an inverter electrically connected to the solar cell modules.

The solar cell module is a solar cell panel manufactured by attaching an amorphous silicon semiconductor layer or a crystalline silicon semiconductor plate as a solar cell element on a transparent substrate, and a solar cell panel holding the solar cell panel. When installing on the roof of a house, for example, when installing on the roof of the house, remove the desired roof tiles of the roof made of rafters, field boards, roof tiles, and that part The fixture is erected and fixed to the field plate, and the frame is fixed to the upper end of the fixture, and the fixture is installed on the roof tile with a certain space between them.

By the way, the solar cell element made of the amorphous silicon semiconductor basically has a lower power generation efficiency than that of the solar cell element made of the crystalline silicon semiconductor, and has a relatively short period (2 to 3). By irradiating light,
The power output decreases to about 80% of the initial power output,
After that, a phenomenon (Stebler-Lonski effect) of being maintained at about 80% is observed, and a large light receiving area is required to obtain an output equivalent to that of a solar cell element made of a crystalline silicon semiconductor. Therefore, a solar cell element made of an amorphous silicon-based semiconductor is cheaper and superior in appearance than a solar cell element made of a crystalline silicon semiconductor, but its spread has been significantly delayed. However, it is known that this reduction phenomenon of power generation output (hereinafter, simply referred to as photodegradation) can be prevented by heating the solar cell element to a high temperature of 80 ° C. to 90 ° C. or higher and that it can be recovered even if it once deteriorates. Has been.

[0005]

The conventional photovoltaic power generation system has the following two problems. (1) A gap is formed between the solar cell module and the roof tile, and the force of wind that pushes up the solar cell module from below acts on the solar cell module, so that the solar cell module is not blown off even in strong winds. Therefore, it is necessary to sufficiently increase the mounting strength of the solar cell module, which causes a problem that the mounting structure becomes complicated or becomes large. In order to solve this problem, it is possible to remove the roof tile below the solar cell module and bring the solar cell module into close contact with the base plate. However, it is possible to prevent rainwater from entering between the solar cell module and the base plate. Therefore, it is difficult to apply sufficient waterproofing, and there is concern about leakage of rain and corrosion of the field boards.

[0006] It is also possible to embed the solar cell module in the field board to improve the adverse effect of wind on the solar cell module and prevent rainwater and the like from entering between the solar cell module and the field board. However, it can be said that it is not practical considering the labor at the time of construction and the degree of freedom in design. Moreover, the conventional solar cell module is basically designed assuming that it will be installed on the roof tiles. It is necessary to take sufficient fire prevention measures such as laying a fireproof board under the battery module, which increases the construction cost.

As an adverse effect of the wind, as shown in FIG. 23, the atmospheric pressure near the roof 101 of the house 100 which is inclined in the direction of the direct wind becomes high, and the atmospheric pressure near the opposite roof 102 is increased. House 10 because it will be low
A pressure difference occurs between the inner pressure and the outer pressure of 0, the force F1 that presses the solar cell module 103 toward the house 100 side acts on the roof 101 side, and the solar cell module 103 is pulled from the house 100 side on the roof 102 side. Although the peeling force F2 acts, the conventional solar cell module does not have a configuration in which these forces F1 and F2 are taken into consideration, and the adverse effect of wind cannot be completely prevented.

(2) In the structure for mounting the solar cell module, since the gap is formed between the solar cell panel and the roof tile as described above, the temperature of the solar cell element is considerably high due to the sunlight. However, it is difficult to heat the solar cell element to a high temperature of 80 ° C. to 90 ° C. or more due to heat radiation from the upper and lower surfaces of the solar cell panel. It is unavoidable that the power generation efficiency will drop significantly.

An object of the present invention is to construct a building having excellent environment resistance and fireproof performance, easy construction, and a power generation function capable of preventing photodegradation even when a solar cell element made of an amorphous silicon semiconductor is used. It is to provide an exterior panel for use.

[0010]

According to a first aspect of the present invention, there is provided a building exterior panel having a power generating function, which is a rectangular frame body, a heat insulating material arranged so as to close the frame body, and a back surface of the heat insulating material.
A reinforcing plate disposed so as to close the inside of the frame on the side, and the heat insulating material
And across the frame body on the surface side and the back side of its respective provided across the reinforcing plate, both ends of the surface-side reinforcing bars are fixed to the frame member and the rear side reinforcing bar, the back to the surface of the thermal insulation material And a solar cell panel provided in close contact with each other.
A building exterior panel having a power generation function according to claim 2,
Rectangular frame and heat insulation placed inside the frame
Material and is disposed on the back side of the heat insulating material by closing the frame body.
Surface of the reinforcing plate so as to divide the heat insulating material from the reinforcing plate
Side across the frame, both ends are fixed to the frame
The front side reinforcing bar and the back side of the reinforcing plate, the front side reinforcing
It is provided across the frame body with a reinforcing plate sandwiched between the crosspiece,
Back reinforcing bars with both ends fixed to the frame, and heat insulating material on the back
Equipped with a solar cell panel that is closely attached to the surface of
It is a thing.

[0011] Here, as in the 請 Motomeko 3, wherein the use of a metal plate as a reinforcing plate, as claimed in claim 4, wherein, a vertical wall portion extending along the inner surface of the frame to the outer peripheral portion of the metal plate Forming a vertical wall portion upward, and forming a flange portion that covers substantially the entire upper surface of the frame body at the upper end thereof, as in claim 5, Reinforcement plate and rear reinforcement bar
Mounting the cushioning material between, as claimed in claim 7, further comprise a surface side metal plate in close contact with the back surface of the solar cell panel in a solar cell panel and the heat insulating material and surface reinforcing桟間claim 8 As described above, a waterproof sheet having an outer edge portion extending to the outer surface of the frame body is provided on the back surface side of the solar cell panel, and the solar cell panel is not provided on the frame body as in claim 9. forming a part, according to claim 10, wherein
The watertight front and rear edges of the
Front holding means and rear holding means for holding the solar cell,
A pair of left and right side parts that hold the side edges of the panel watertight
And a solar cell panel through these holding means.
Fixing the edge of the to the frame, as in claim 11.
Is fixedly installed on the main roof of the building and the roof of the building is constructed.
It is formed, which is the preferred embodiment and the like.

[0012]

[Action] In architectural exterior panel having a power generating function according to claim 1, insulation and the reinforcing plate is provided inside the frame, the frame body on the surface side and the back side of that across the heat insulating material and the reinforcing plate Since the front side reinforcing bar and the back side reinforcing bar are provided respectively, the frame body, the heat insulating material, the reinforcing plate, the front side reinforcing bar and the back side reinforcing bar provide sufficient strength and rigidity against twisting and bending. Will be secured.

Further, since the solar cell panel is provided in close contact with the heat insulating material, even if a force for pressing the surface of the solar cell panel acts due to the pressure difference between the front surface side and the rear surface side of the building exterior panel. This force is received by the reinforcing plate and the back side reinforcing bar via the heat insulating material. Further, even if a force for pressing the back side of the solar cell panel, this force is a reinforcing plate
In addition to being received, it is also received by the front side reinforcing bar through the heat insulating material.

Furthermore, since the heat insulating material is adhered to the back side of the solar cell panel, heat radiation from the back side of the solar cell panel is prevented, and the temperature rise of the solar cell panel is promoted. Furthermore, the heat insulating material prevents heat from entering the building and prevents heat from being exhausted from the building, thereby suppressing variation in indoor temperature due to sunlight.

[0015] Here, as in the 請 Motomeko 3, wherein the use of a metal plate as a reinforcing plate, fire performance of building exterior panel makes it possible to greatly improve. Further, since the metal plate is arranged on the back side of the exterior panel for construction, the spread of fire particularly to the neighborhood is effectively prevented. When the vertical wall portion extending along the inner surface of the frame is formed on the outer peripheral portion of the metal plate used as the reinforcing plate, the strength and rigidity of the building exterior panel against twisting and bending can be further improved. To be enhanced.

As described in claim 5, when the vertical wall portion of the metal plate used as the reinforcing plate is extended upward and a flange portion is formed at the upper end thereof to cover substantially the entire upper surface of the frame body, it is made of metal. Combustion of the upper surface of the frame body is prevented by the flange portion, and fire caused by flying fire is effectively prevented. As described in claim 7 , when the front surface side metal plate is provided between the solar cell panel, the heat insulating material and the front surface side reinforcing bar so as to be in close contact with the back surface of the solar cell panel, a fire due to a flying fire can be more effectively prevented. It In addition, the temperature of the solar cell panel becomes uniform due to heat transfer by the front side metal plate,
Moreover, since the heat insulating material arranged on the back side of the front side metal plate prevents heat radiation from the back side of the front side metal plate, the temperature rise of the solar cell panel is uniformly promoted.

When a waterproof sheet whose outer edge extends to the outer surface of the frame is provided on the back side of the solar cell panel as described in claim 8 , rainwater and the like can be effectively prevented from entering the frame. Will be. As described in claim 9 , when the adjusting portion without the solar cell panel is formed on the frame body, the dimension of the building exterior panel can be adjusted by cutting off a part of the adjusting portion. It becomes easier to attach the building exterior panel to, and after the construction of the building exterior panel, it is possible to utilize the adjusting portion as a passage for maintenance and inspection of the solar cell panel.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. First, the basic structure of a building exterior panel will be described. As shown in FIG. 1, the building exterior panel 1 is basically provided with a rectangular wooden frame body 7 and an intermediate portion in the thickness direction of the frame body 7 to close the inside of the frame body 7. The reinforcing plate 4, the heat insulating material 3 laid on the front surface side of the reinforcing plate 4, and the groove 3a formed on the surface of the heat insulating material 3 are provided across the inside of the frame body 7, and both ends of the frame body 7 are provided. The front side reinforcing bar 8 fixed to the front side, the back side reinforcing bar 9 provided on the back side of the reinforcing plate 4 across the inside of the frame 7, and both ends fixed to the frame 7, and the front side reinforcing bar 8.
The solar cell panel 2 is provided on the heat insulating material 3 in parallel with the reinforcing plate 4, and the back surface of the solar cell panel 2 is in close contact with the upper surface of the heat insulating material 3. However, it is also possible to use a frame body made of metal or synthetic resin as the frame body 7. Further, the reinforcing plate 4 can be omitted if necessary.

As shown in FIG. 2, the solar cell panel 2 basically has a transparent substrate 10, a solar cell element layer 11 formed on the lower surface of the transparent substrate 10, and a solar cell element layer 11.
The filler 12 is provided below the filler 12, and the backsheet 13 is provided below the filler 12. As the translucent substrate 10, a tempered glass, a laminated glass, or other general translucent substrate is used, and a substrate to which silicon oxide or the like is adhered may be used as necessary so that the glass component is not eluted. . The solar cell element layer 11 is composed of a transparent conductive film, a p-i-n or a n-i-p amorphous silicon layer, and a metal electrode layer sequentially stacked on the transparent substrate 10, and the bottom surface side thereof. It is sealed and fixed in the translucent substrate 10 via a filler 12 such as EVA, PVB, or polyisobutylene resin provided in the above.

The back sheet 13 is composed of a Tedler or the like in which aluminum foil is sanded. However, the filler 12 or the backsheet 13 may be omitted. Here, as the transparent conductive film, tin oxide or indium tin oxide is used as in the conventional solar cell element, and as the amorphous silicon layer, a heterojunction structure of amorphous silicon carbide and amorphous silicon is adopted. P layer or n layer on the transparent conductive film side or the metal electrode layer side according to
Microcrystallization is also effective in reducing the series resistance.

As the metal electrode layer, a general metal material such as chromium, aluminum or silver is used as a single layer or a laminated structure. In particular, since the element temperature becomes high, in order to prevent the diffusion of metal components between the amorphous silicon layer and the amorphous silicon layer, the transparent conductive film or the silicide film described above is formed between the amorphous silicon layer and the metal electrode layer. Interposing a metal diffusion preventing layer such as a layer, or using a silicide forming metal such as chromium or molybdenum as a metal electrode layer without interposing this metal diffusion preventing layer, or stacking these silicide forming metals and other metals The structure is effective. Further, in terms of the effect of confining incident light, silver is particularly effective in terms of reflectance. Furthermore, when EVA, PVB, or the like is used as the filler 12, it may be sealed by a vacuum laminating method, and in the case of a polyisobutylene resin, this may be heated and fluidized for application.

The material constituting the heat insulating material 3 is, for example, polystyrene foam, polyethylene foam, rigid polyurethane foam, flexible polyurethane foam, rigid vinyl chloride foam, urea foam, phenol, which has excellent heat insulating properties, heat retaining properties and heat storage properties. Foam, rubber foam, polypropylene, polyethylene terephthalate, perlite, vermiculite, foam glass and other foaming and porous materials, asbestos, rock wool, glass wool, ceramic fiber, animal and vegetable fiber, soft fiber material, carbon fiber, potassium titanate fiber Fiber materials such as calcium silicate, basic magnesium carbonate, diatomaceous earth, diatomaceous earth insulating bricks, fireproof insulating bricks, castable refractory insulating materials, cork, carbon powder and other granular and powdery materials, and aluminium. Multilayer foil material and consisting of a beam foil,
It is possible to use foam rubber materials such as hard foam rubber and chloroprene rubber foam, lightweight cellular concrete, and foam aluminum.

As the reinforcing plate 4, a metal plate such as an iron plate, a stainless steel plate, a copper plate, an aluminum alloy plate, an enameled steel plate, a zinc iron plate or a titanium alloy plate is used alone, or these metal plates are subjected to anticorrosion treatment. Alternatively, a laminated plate of a metal plate and an inorganic heat insulating plate or an inorganic highly-filled foam plastic plate, a wooden flat plate or plywood, a synthetic resin board excellent in strength and rigidity, or a material listed as a material for the heat insulating material 3 It is possible to use a material having excellent strength and rigidity. When the heat insulating material 3 and the reinforcing plate 4 are made of the same material, they may be integrally molded. Both reinforcing bars 8,
As the material 9, it is possible to use a wooden bar or a square bar, a bar or a pipe made of a metal or a synthetic resin material.

Next, a modified example of the building exterior panel 1 will be described. As in the exterior panel A for construction shown in FIG. 3, the surface side reinforcing bar 8 is provided so as to divide the heat insulating material 3.
The lower surface of the front-side reinforcing bar 8 may be directly fixed to the upper surface of the reinforcing plate 4, or as in the building exterior panel 1B shown in FIG.
The front-side reinforcing bars 8 and the back-side reinforcing bars 9 may be arranged in a staggered manner. In addition, as shown in FIG. 5, the heat insulating material 3 is divided into a plurality of divided heat insulating materials 3A which are divided in the widthwise middle portions of the respective groove portions 3a.
It is also possible to configure with, and as shown in FIG.
It is also possible to use a plurality of divided heat insulating materials 3B divided in the middle of the groove portions 3a in the width direction.

Further, as described later, when a metal plate is used as the reinforcing plate 4, as shown in FIG. 11, a vertical wall portion extending along the inner side surface of the frame body 7 on the outer peripheral portion of the reinforcing plate 4. 5 to form building exterior panels 1 and 1 against twisting and bending.
The strength and rigidity of A and 1B may be increased. Also, the reinforcing plate 4
The flange portion 6 may be formed to cover substantially the entire upper surface of the frame body 7 to prevent combustion on the upper surface of the frame body 7 and prevent a fire due to a flying fire.

Further, for example, as shown in FIGS. 21 and 22, the front surface side metal plate 9 is adhered to the back surface of the solar cell panel 2 between the solar cell panel 2 and the heat insulating material 3 and the front surface side reinforcing bar 8.
1, 91A are provided, and building exterior panels 1, 1A, 1B
It is also possible to prevent the occurrence of a fire due to a flying fire while increasing the strength and rigidity of the. In this case, the front side metal plate 91,
The heat transfer by 91A makes the temperature of the solar cell panel 2 uniform, and further, the heat insulating material 3 arranged on the back side of the front surface side metal plates 91, 91A radiates heat from the back surface side of the front surface side metal plates 4A, 4B. Therefore, it is possible to uniformly promote the temperature rise of the solar cell panel 2 and prevent the photodegradation of the entire solar cell panel 2 . Furthermore, as shown in FIG. 11, on the back surface side of the solar cell panel 2, an outer edge portion is provided with a waterproof sheet 36 extending to the outer surface of the frame body (indicated by reference numerals 32 and 70 in the drawing). Rainwater may be prevented from entering the frame.

Next, a concrete example in which the building exterior panel 1 is applied to the roof of a house will be described.
The eaves side will be defined as the front side, and the ridge side will be defined as the rear side. As shown in FIG. 7 and FIG. 8, a plurality of left-right direction purlins 21 are arranged side by side at regular intervals on the upper part of the house 20, and a plurality of roof panels 23 are arranged on the purlin 21 left and right. The roof 22 is arranged in three rows in the front and rear, and the roof 22 is composed of a plurality of roof panels 23. That is, in this house 20, the rafters, field boards, and roof tiles are omitted, and the plurality of roof panels 23 function as rafters, field boards, and roof tiles. Reference numeral 24 is a skylight. Roof 22
Panel 23A that constitutes the left side of the roof 22, a roof panel 23B that constitutes the right side of the roof 22, and a roof panel 23C that constitutes between the roof panels 23A and 23B of the roof 22.
It is composed of three types of roof panels 23.

First, the structure of the roof panel 23C will be described with reference to FIGS. A substantially rectangular frame-shaped wooden frame body 32 including a pair of side frames 30 and a pair of connecting frames 31 connecting front and rear ends of both side frames 30 is provided, and the frame body 32 is a purlin. The frame bodies 32 of the roof panel 23C, which are fixed to 21 by nails or bolts (not shown) and are continuously provided in the lateral direction, are also fixed by nails or bolts (not shown).

A metal reinforcing plate 4 is provided in the middle of the frame body 32 in the height direction over substantially the entire opening of the frame body 32, and the frame body 32 is provided on the outer peripheral portion of the reinforcing plate 4. A vertical wall portion 5 extending upward along the inner wall is formed, and a flange portion 6 extending toward the upper surface side of the frame body 32 is formed at an upper end portion of the vertical wall portion 5. On the front surface side of the reinforcing plate 4, rod-shaped front surface side reinforcing bars 8 facing in the left-right direction are provided at predetermined intervals at predetermined intervals, and both ends of the front surface side reinforcing bars 8 are fixed to the side frames 30, respectively. On the back side of the reinforcing plate 4, bar-shaped back side reinforcing bars 9 oriented in the left-right direction are provided at predetermined intervals so as to correspond to the front side reinforcing bars 8. Both ends of the back side reinforcing bars 9 are provided on the left and right side frames 30. It is fixed to each.

The heat insulating material 3 is mounted in the internal space of the frame 7 on the upper side of the reinforcing plate 4, and the front surface side reinforcing bar 8 is mounted in the groove portion 3 a formed in the heat insulating material 3. However, the heat insulating material 3 may be composed of the divided heat insulating materials 3A and 3B as described above. The upper surfaces of the heat insulating material 3 and the front surface side reinforcing bar 8 are set at substantially the same height, and the upper surfaces of the heat insulating material 3 and the front surface side reinforcing bar 8 are arranged at a position slightly higher than the upper surface of the frame body 32. Further, a cushioning material 34 having elasticity is mounted between the back reinforcing bar 9 and the reinforcing plate 4. However, the cushion material 34 may be omitted.

A step 32a is formed in the vicinity of the front end and the rear end of the frame 32 and the heat insulating material 3, and this step 3 is formed.
Roof underlayer panels 35 are fixed on the 2a, respectively, and the upper surface of the roof underlayer panels 35 is set to have substantially the same height as the portion of the frame body 32 other than the step portion 32a.

An adhesive waterproof sheet 36 is adhered over the entire upper surface of the heat insulating material 3 between the front and rear roof underlayer panels 35 and the entire upper surface of the front and rear roof underlayer panels 35, and the outer edge portion of the waterproof sheet 36 is adhered. Is extended along the upper surface and the outer side surface of the frame body 32 and attached to the frame body 32, and the waterproof sheet 36 prevents rainwater and the like from entering the frame body 32. still,
As the material of the waterproof sheet 36, it is possible to use special rubberized asphalt compound, polyisobutylene, or the like.

Between the front and rear roof base panels 35, a plurality of solar cell panels 2 are consecutively provided on the heat insulating material 3 with a waterproof sheet 36 sandwiched therebetween with a slight gap therebetween, and between the adjacent solar cell panels 2. The gap is filled with a sealing material 37. In addition, the solar cell panel 2 may be attached to the heat insulating material 3 via the waterproof sheet 36 by forming adhesive parts on both sides of the waterproof sheet 36. Moreover, you may provide the transparent cover member which covers the upper surface of the solar cell panel 2 over the several solar cell panel 2 arranged in a row.

In order to fix and hold the plurality of solar cell panels 2 on the frame body 32, the roof panel 23C has a front edge portion and a rear edge portion of a group of solar cell panels 2 arranged side by side on the heat insulating material 3. Front holding means 40 and rear holding means 4 for holding the parts
1 and a pair of left and right side part holding means 42 for holding the side edge part of the solar cell panel 2.

Explaining the side portion holding means 42, as shown in FIGS. 9, 12, and 14, the left and right side frames 30 corresponding to the group of solar cell panels 2 arranged in parallel on the heat insulating material 3. The collar portion 6 of the reinforcing plate 4 and the waterproof sheet 36 are on the upper side.
The side receiving bracket 45 is fixed with sandwiching between and, and the side edge of the solar cell panel 2 is placed on the inner half of the side receiving bracket 45. The side fixing bracket 4 has an arm portion 46a extending on the side edge of the solar cell panel 2 on the outer half of the side receiving bracket 45.
6 is detachably attached, and ethylene propylene rubber (EP is provided between the arm portion 46a and the side edge portion of the solar cell panel 2).
DM) or the like is provided, and the side edge portion of the solar cell panel 2 is provided with a side receiving fitting 45 and a side fixing fitting 46.
It is sandwiched in a watertight manner and fixed to the side frame 30. Solar panel 2 and waterproof sheet 3 on frame 32
A seal material 48 is provided between the six side walls, and a seal material 49 for preventing rainwater and the like from entering between the adjacent roof panels 23C is attached to the outer side of the side receiving bracket 45.

The side holding means 42 is assembled in advance to the side frame 30 in a factory or the like. Further, a side portion holding means 42 having the same configuration as the roof panel 23C is also provided on one side portion of the roof panels 23A and 23B described later, and at the construction site, the roof panel 23 is adjacent to the roof panel 23 in a state of being set on the purlin 21. Attach the connecting plate 50 with screws or the like across the upper surfaces of the side fixing fittings 46 of the side holding means 42,
The connecting plate 50 connects the adjacent side fixing fittings 46 to each other, and the cover member 51 is fitted and fixed to the connecting plate 50 to prevent rainwater and the like from entering between the adjacent roof panels 23.

Explaining the front part holding means 40, as shown in FIG. 9, FIG. 12 and FIG. 15, a front bracket 55 is fixed on the rear edge part of the roof underlaying panel 35 on the front side. The front edge of the solar cell panel 2 is placed on the rear half of the front bracket 55. A front fixing bracket 56 having an arm portion 56a extending above the front edge portion of the solar cell panel 2 is detachably attached to the front half portion of the front receiving bracket 55, and the arm portion 56a and the front edge portion of the solar cell panel 2 are attached. Sealing material 57 made of ethylene propylene rubber (EPDM) or the like in between
Is provided, and the front edge of the frontmost solar cell panel 2 is water-tightly sandwiched between the front receiving metal fitting 55 and the front fixing metal fitting 56 and fixed to the roof base panel 35. An extension portion 56b extending forward is formed on the front fixing member 56, and the roof material 25 is mounted between the extension portion 56b and the roof base panel 35.

The front receiving bracket 55 is assembled in advance on the rear edge of the front roof base panel 35 in a factory or the like. Further, front holding means 40 having the same configuration as the roof panel 23C is also provided in front of roof panels 23A and 23B, which will be described later, and at the construction site, the roof panels 23 are adjacent to each other with the roof panel 23 set on the purlin 21. 2-3 roof panels 2
The front fixing bracket 56 will be assembled over 3. Similarly to the front fixing bracket 56, the roof member 25 mounted between the extended portion 56b and the roof base panel 35 is provided over the plurality of roof panels 23, and the roof member 25 and the front fixing bracket are provided. 56 prevents rainwater and the like from entering between the front portions of the adjacent roof panels 23.

Explaining the rear holding means 41, as shown in FIGS. 9, 12, and 16, a rear bracket 60 is fixed on the front edge of the rear roof underlayer panel 35, and the rearmost bracket is located at the rearmost side. The rear edge of the solar cell panel 2 is placed on the front half of the rear bracket 60. A rear fixing metal fitting 61 having an arm portion 61a extending above the rear edge portion of the solar cell panel 2 is detachably attached to the rear half of the rear receiving metal fitting 60, and is provided between the arm portion 61a and the rear edge portion of the solar cell panel 2. Is a sealing material 62 made of ethylene propylene rubber (EPDM) or the like.
Is provided, and the rear edge of the rearmost solar cell panel 2 is water-tightly sandwiched between the rear receiving bracket 60 and the rear fixing bracket 61 and fixed to the roof base panel 35.

The rear holding means 41 is assembled in advance on the front edge of the rear roof underlayer panel 35 in a factory or the like. Further, the rear holding means 4 having the same structure as the roof panel 23C is provided also at the rear portions of the roof panels 23A and 23B described later.
1 is provided, at the construction site, with the roof panel 23 set on the purlin 21, the rear cover member 63 is assembled to the rear fixing metal fittings 61 over the adjacent two or three roof panels 23, and the rear portion is attached. The roofing material 25 is set on the extended portion 63a of the cover member 63. The extended portion 63a
Also in the roofing material 25 set above, the rear fixing bracket 6
As in 1, it is provided over a plurality of roof panels 23,
The roof material 25 and the rear fixing member 61 prevent rainwater and the like from entering between the rear portions of the adjacent roof panels 23.

Since the roof panels 23A and 23B have a symmetrical structure and basically the same structure as the roof panel 23C, the right roof panel 23B will be briefly described. As shown in FIG. 17, a wooden frame body 70 in which the frame body 32 is enlarged in the width direction is provided, and a center of the frame body 70 in the left-right direction is centered in parallel with the side frame 30.
Over the frame 71 is provided, the front and rear end portions of the center frame 71 is connected to the connecting frame 31. Also,
As shown in FIGS. 9 and 18 to 19, a metal reinforcing plate 4 for closing the opening is provided on the center frame 71 in the middle of the frame body 70 in the height direction. A vertical wall portion 5 extending upward along the inner wall of the frame body 70 is formed in the portion, and a flange portion 6 extending toward the upper surface side of the frame body 70 is formed at the upper end portion of the vertical wall portion 5.

On the surface side of the reinforcing plate 4, rod-shaped surface-side reinforcing bars 8 oriented in the left-right direction are provided at regular intervals upward, and both end portions of the surface-side reinforcing bars 8 are respectively attached to the side frames 30. On the back side of the reinforcing plate 4, rod-shaped back side reinforcing bars 9 fitted to the center frame 71 and extending in the left-right direction are provided at predetermined intervals corresponding to the front side reinforcing bars 8. Both ends of the reinforcing bar 9 are fixed to the left and right side frames 30, respectively.

The heat insulating material 3 is mounted in the internal space of the frame 70 on the upper side of the reinforcing plate 4, and the front side reinforcing bar 8 is mounted in the groove portion 3a formed in the surface portion of the heat insulating material 3. The upper surface of the heat insulator 3 on the upper surface and the surface-side reinforcing bars 8 is set to be substantially flush with, the left side of the center frame 71 of the heat insulator 3 and the surface-side reinforcing crosspiece 8 upper surface of the left half of the frame 7 0 It is located slightly higher than the top surface. The heat insulating material 3 and the surface side reinforcing bar 8 on the right side of the center frame 71 and the vicinity of the upper and lower ends of the frame body 70 and the right half portion thereof are formed one step lower, and the roof base panel 72 is provided on the step portion 70a which is one step lower. The upper surface of the roof base panel 72 is arranged at substantially the same height as the upper surface of the left half of the frame body 70, and the roof base panel 72 is fixed to the frame body 70 with nails or wood screws.

A waterproof sheet 36 is attached to the upper surface of the heat insulating material 3 and the front side reinforcing bar 8 on the left side of the center frame 71 and the roof base panel 72, and the outer peripheral portion of the waterproof sheet 36 is a frame 70. A frame 70 extending along the upper surface and the side surface.
A plurality of solar cell panels 2 are attached to the upper surface of the waterproof sheet 36 in the front and back in a portion other than the roof base panel 72.

The left side edge, the front edge and the rear edge of the solar cell panels 2 arranged in parallel on the heat insulating material 3 have the same side holding means 42 and front holding means as the roof panel 23C described above. Four
0, the rear part holding means 41 is fixedly held to the frame 70, respectively, but the right side edge is held by the side part holding means 75 having the following configuration.

A side bracket 76 is provided on the left end of the roof base panel 72 with a waterproof sheet 36 interposed therebetween, and the right edge of the solar cell panel 2 is placed on the left half of the side bracket 76. Has been done. A side fixing metal fitting 77 having an arm portion 77a extending to the right edge of the solar cell panel 2 is detachably attached to the right half portion of the side receiving metal fitting 76, and the arm portion 77a
A sealing material 78 made of ethylene propylene rubber (EPDM) or the like is provided between the side edge portion of the solar cell panel 2 and the side edge portion of the solar cell panel 2, and the right edge portion of the solar cell panel 2 is between the side receiving bracket 76 and the side fixing bracket 77. It is sandwiched in a watertight manner and fixed to the roof base panel 72.

The side holding means 75 is assembled in advance on the left edge of the roof base panel 72 in a factory or the like. Further, at the construction site, with the roof panel 23 set on the purlin 21, the side cover member 79 is assembled to the side fixing metal fitting 77, and the upper and lower extension portions 7 of the side cover member 79 are assembled.
The roofing material 25 will be installed between 9a and 79b.

As shown in FIG. 9 and FIG. 20, the rear end portions of the side receiving fittings 76, the side fixing fittings 77, and the side cover members 79 are closed by the front end surface of the rear cover member 63. An end cap 80 is attached to the front end portion. Also,
End caps 8 are provided on both left and right ends of the rear cover member 63.
1 is installed to prevent rainwater from entering. Furthermore,
The left and right ends of the front receiving bracket 55 and the front fixing bracket 56 are closed by the inner surface of the side cover member 79 to prevent rainwater and the like from entering. As shown in FIGS. 16, 19, and 20, the upper surfaces of the extending portions 63a and 79b and the roof base panel 3
A waterproof tape 82 is stuck between the waterproof sheets 36 on the parts 5 and 72 to prevent rainwater and the like from entering between the cover members 63 and 79 and the waterproof sheet 36.

A terminal box 14 is provided at a substantially central portion of the lower surface of the solar cell panel 2, and the output line 15 connected to the terminal box 14 penetrates the waterproof sheet 36, the heat insulating material 3 and the reinforcing plate 4. Have been led down. The amount of power generated by the plurality of solar cell panels 2 is
It is set to 15% or less of the total power generation amount, and is configured to prevent an extreme decrease in the power generation amount even if one solar cell panel 2 fails.

Next, the operation and effect of the roof 22 having the power generation function will be described. The roof 22 as a whole is composed of the roof panel 23, but the frame 3 of the roof panel 23
2, 70 are provided over a plurality of purlins 21, so that the side frame 30 functions as a rafter, and the reinforcing bars 8 and 9 and the reinforcing plate 4 twist the frame bodies 32 and 70. Since the strength and rigidity against bending are increased, both the reinforcing bars 8 and 9 and the reinforcing plate 4 function as a base plate, and it is possible to sufficiently secure the strength of the roof 22 while omitting the base plate and rafters. Become. Moreover, the vertical wall portion 5 is provided on the outer peripheral portion of the reinforcing plate 4.
Since the collar portion 6 is formed, the strength and rigidity against twisting and bending can be further enhanced.

Further, the solar cell panel 2 is provided on the front surface side reinforcing bar 8 in parallel with the reinforcing plate 4, and the front surface side is provided in the space between the reinforcing plate 4 and the solar cell panel 2 in the frames 32 and 70. Since the heat insulating material 3 is provided in close contact with the solar cell panel 2, even if a force for pressing the surface of the solar cell panel 2 acts on the solar cell panel 2 due to the pressure difference between the inside and the outside of the house 20,
This force is received by the front side reinforcing bar 8,
Heat insulating material 3 supported by the reinforcing plate 4 and the rear reinforcing bar 9
Will be accepted by. Further, even if a force that presses the back surface side of the reinforcing plate 4 is applied, this force is received by the reinforcing plate 4 and the front surface side reinforcing bar 8.
Moreover, since the surface side reinforcing bar 8 is attached to the groove 3a formed in the surface part of the heat insulating material 3 and the upward movement of the heat insulating material 3 is regulated by the surface side reinforcing bar 8, the pressure difference causes the sun to move. Even if a force acts in the direction of peeling the battery panel 2, the waterproof sheet 36, and the heat insulating material 3, this force is effectively received by the front side reinforcing bar 8 via the heat insulating material 3. Therefore, even if a pressure difference occurs inside and outside the house 20 due to wind or the like, peeling or damage of the solar cell panel 2 can be effectively prevented.

Further, a heat insulating material 3 and a metal reinforcing plate 4 are provided in this order on the back surface side of the solar cell panel 2, and the flange portion 6 is extended to the upper surfaces of the frame bodies 32 and 70. Therefore, the reinforcing plate 4 can sufficiently secure the fireproof performance. In particular, since the reinforcing plate 4 is arranged inside the heat insulating material 3, it is possible to effectively prevent the spread of fire to the neighborhood.

Furthermore, since the heat insulating material 3 is laminated on the back side of the solar cell panel 2, heat radiation from the back side of the solar cell panel 2 is prevented and the temperature rise of the solar cell panel 2 is promoted. It As a result, it becomes possible to heat the solar cell panel 2 to 80 ° C. to 90 ° C. or higher with sunlight, and even if an amorphous silicon semiconductor is used as the solar cell element, it is possible to effectively reduce the power generation output due to photodegradation. Can be prevented.

Further, the roof base panel 35 without the solar cell panel 2 provided on the outer peripheral portion of the roof panels 23 arranged in parallel,
Since 72 is provided, the roof base panel 3 at the construction site
The dimensions can be easily adjusted by cutting off a part of 5, 72, and after the building of the house 20, the roofing material 25 laid on the roof base panel 35, 72 becomes a passage for movement, and the solar cell Maintenance and inspection work of panel 2 can be performed easily. The portion of the roof panel 23 corresponding to the roof base panels 35 and 72 corresponds to the adjusting portion.

Further, the heat insulating material 3 prevents heat from entering the house 20 and prevents heat radiation from the roof 22 and suppresses fluctuations in the room temperature due to sunlight, so that the house 20 is more comfortable to live in. It becomes possible to improve.

Next, a modified example in which the structure of the roof panel 23 is partially changed will be described. The same members as those in the above embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. (1) As in the roof panel 90 shown in FIG. 21, provided in close contact surface Gawakin genus plate 91 on the back of the solar cell panel 2,
The heat insulating material 3 may be provided in a laminated manner on the back side of the front surface side metal plate 91 with the waterproof sheet 36 interposed therebetween. In this case, it is also possible to provide the vertical wall portion 5A extending along the side surface of the solar cell panel 2 on the outer peripheral portion of the front surface side metal plate 91.

In this roof panel 90, the same actions and effects as those of the roof panel 23 can be obtained, and since the front side metal plate 91 is provided in close contact with the back surface of the solar cell panel 2, the fire prevention performance is particularly high. It is possible to effectively prevent the occurrence of a fire due to a flying fire. Further, since the temperature of the solar cell panel 2 becomes uniform due to the heat transfer of the front surface side metal plate 91, it is possible to prevent a local decrease in power generation output of the solar cell panel 2 due to photodegradation.

(2) Like the roof panel 90A shown in FIG. 22, the heat insulating material 3 is arranged one step lower than the upper surfaces of the frame bodies 32 and 70, and the front side metal plate 91A is provided on the heat insulating material 3 in close contact therewith. At the same time, the vertical wall portion 5B extending upward along the inner side surfaces of the frame bodies 32 and 70 is provided on the outer peripheral portion of the front surface side metal plate 91A.
And a flange portion 6B extending from the upper end of the vertical wall portion 5B to the upper surface side of the frame bodies 32 and 70, the waterproof sheet 36 is attached to the upper surface of the front surface side metal plate 91A, and the outer periphery of the waterproof sheet 36 is formed. The parts are extended along the side surfaces of the frame bodies 32, 70 to form the frame bodies 32, 7
0, and put the waterproof sheet 3 inside the front side metal plate 91A.
The solar cell panel 2 may be mounted with the 6 sandwiched therebetween. Reference numeral 92 is a cover glass for preventing damage to the solar panel 2.

Although the exterior panel 1 for construction is reinforced by the frame body 32 in this embodiment, it may be reinforced by a metal frame body such as an aluminum alloy or a concrete frame body. is there.

[0060]

According to the building exterior panel having the power generation function according to claim 1, the strength as the building exterior panel,
It is possible to provide a building exterior panel having a sufficient power generation function and having sufficient rigidity. Further, it is possible to effectively prevent peeling and damage of the solar cell panel due to the pressure difference between the front surface side and the rear surface side of the building exterior panel.

Furthermore, the temperature rise of the solar cell panel is promoted, the solar cell panel can be maintained at 80 ° C. to 90 ° C. or higher, and even if an inexpensive amorphous silicon semiconductor is used as the solar cell element, It is possible to effectively prevent a decrease in power generation output due to light deterioration. Furthermore, the heat insulating material prevents heat from entering the building and prevents heat from being exhausted from the building, thereby suppressing fluctuations in the indoor temperature due to sunlight.

[0062] When 請 Motomeko 3 providing the metal plate as a reinforcing plate as described, fire performance of building exterior panel makes it possible to greatly improve. Further, since the metal plate is arranged on the back side of the exterior panel for construction, it is possible to effectively prevent the spread of fire especially to the neighborhood. When the vertical wall portion is formed on the metal reinforcing plate as described in claim 4, the strength and rigidity of the building exterior panel against twisting and bending are further enhanced.

As described in claim 5, when the brim portion in which the vertical wall portion of the metal reinforcing plate is extended upward is formed, the upper surface of the frame body is prevented from burning and the fire due to the flying fire is effectively generated. Can be prevented. By providing the front side metal plate as described in claim 7, it is possible to more effectively prevent the occurrence of a fire due to a flying fire. Further, since the temperature increase of the solar cell panel is uniformly promoted by the front side metal plate and the heat insulating material, it is possible to prevent the photodegradation of the solar cell panel as a whole.

When the waterproof sheet is provided as described in claim 8, it becomes possible to effectively prevent intrusion of rainwater and the like into the frame body. When the adjusting portion is provided as in claim 9 ,
In addition to facilitating the dimension adjustment of the building exterior panel, it becomes possible to utilize the adjusting portion as a passage for maintenance and inspection of the solar cell panel after construction.

[Brief description of drawings]

[Figure 1] Vertical cross-sectional view of exterior panels for construction

FIG. 2 is a vertical sectional view of a solar cell panel.

FIG. 3 is a vertical cross-sectional view of another construction exterior panel.

FIG. 4 is a vertical cross-sectional view of another construction exterior panel.

FIG. 5 is a perspective view of another heat insulating material.

FIG. 6 is a perspective view of another heat insulating material.

[Figure 7] Vertical cross-section near the roof of a house

[Figure 8] Plan view of the roof

FIG. 9 A plan view of the main part of the roof panel

10A is a plan view of the frame body, and FIG. 10B is a side view of the frame body.

11 is a sectional view taken along line XI-XI of FIG.

FIG. 12 is a sectional view taken along line XII-XII in FIG.

13 is a sectional view taken along line XIII-XIII in FIG.

FIG. 14 is a vertical cross-sectional view near the side holding means.

FIG. 15 is a vertical cross-sectional view around the front holding means.

FIG. 16 is a vertical sectional view of the vicinity of the rear holding means.

FIG. 17 (a) is a plan view of a frame body arranged on the right side of the roof, and FIG. 17 (b) is a side view thereof.

FIG. 18 is a sectional view taken along line XVIII-XVIII in FIG.

FIG. 19 is a vertical cross-sectional view of the roof panel disposed on the right side of the roof in the vicinity of the side holding means.

FIG. 20 is a perspective view of the main part near the right rear side of the roof panel.

FIG. 21 is a vertical cross-sectional view of a roof panel of another structure in the vicinity of side holding means.

FIG. 22 is a vertical cross-sectional view of a roof panel of another structure in the vicinity of side holding means.

FIG. 23 is an explanatory diagram of the principle of adverse effects of wind on the solar cell module.

[Explanation of symbols]

1 Building Exterior Panel 2 Solar Cell Panel 3 Thermal Insulation 3a Groove 4 Reinforcing Plate 5 Vertical Wall 6 Collar 7 Frame 8 Front Side Reinforcing Bar 9 Back Side Reinforcing Bar 1A Building Exterior Panel 1B Building Exterior Panel 3A Split Insulation Material 3B Divided heat insulating material 10 Transparent substrate 11 Solar cell element layer 12 Filling material 13 Backsheet 14 Terminal box 15 Output line 20 House 21 Purlin 22 Roof 23 Roof panel 23A Roof panel 23B Roof panel 23C Roof panel 24 Skylight 25 Roofing material 30 Side frame 31 Connection frame 32 Frame body 32a Step portion 34 Cushion material 35 Roof base panel 36 Waterproof sheet 37 Seal material 40 Front holding means 41 Rear holding means 42 Side holding means 45 Side receiving bracket 46 Side fixing bracket 46a Arm Part 47 Sealing material 48 Sealing material 49 Sealing material 50 Connection plate 5 Cover member 55 Front receiving bracket 56 Front fixing bracket 56a Arm part 56b Extended part 57 Sealing material 60 Rear receiving bracket 61 Rear fixing bracket 61a Arm part 62 Sealing material 63 Rear cover member 63a Extended part 70 Frame body 70a Step part 71 Center Frame 72 Roof Base Panel 75 Side Holding Means 76 Side Supporting Metal 77 Side Fixing Metal 77a Arm 78 Sealing Material 79 Side Cover 79a Extension 79b Extension 80 End Cap 81 End Cap 82 Waterproof Tape 90 Roof Panel 91 Front Side Metal Plate 5A Vertical Wall 90A Roof Panel 91A Front Side Metal Plate 5B Vertical Wall 6B Collar 92 Cover Crow

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ identification code FI H01L 31/042 H01L 31/04 R (56) Reference JP-A-7-18797 (JP, A) JP-A-57-48049 ( JP, A) JP 5-340019 (JP, A) Actual opening 6-6519 (JP, U) Actual opening 7-15907 (JP, U) Actual opening 6-79912 (JP, U) Actual opening 56-130534 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04D 13/18 E04D 3/35 E04F 13/08 E04B 1/74-1/90 E04B 7/02 511 H01L 31/042

Claims (11)

(57) [Claims] 1. A rectangular frame body, a heat insulating material arranged to close the frame body, and a reinforcement arranged to close the frame body on the back side of the heat insulating material.
A plate, said across the heat insulating material and the reinforcing plate across a frame body on the surface side and the back side of its respective provided, both ends side surface is fixed to the frame reinforcing bars and the rear side reinforcing bars, rear An exterior panel for a building having a power generation function, comprising a solar cell panel provided by closely adhering to the surface of a heat insulating material. 2. A rectangular frame body, a heat insulating material which is arranged so as to close the inside of the frame body, and a reinforcement which is arranged at the back side of the heat insulating material so as to close the inside of the frame body.
Inside the frame on the surface side of the reinforcing plate so as to divide the plate and the heat insulating material.
Reinforcement on the front side, which is provided transversely and both ends are fixed to the frame
A reinforcement plate is provided between the crosspiece and the front side reinforcement crosspiece on the back side of the reinforcement plate.
It is sandwiched across the frame body and both ends are fixed to the frame body.
Back reinforcing bar and the solar cell pack installed with the back surface in close contact with the surface of the heat insulating material.
A building exterior panel having a power generation function with a flannel . 3. A process according to claim 1 also using a metal plate as a reinforcing plate
Is a building exterior panel having a power generation function according to 2. 4. The building exterior panel having a power generating function according to claim 3, wherein a vertical wall portion extending along the inner side surface of the frame is formed on the outer peripheral portion of the metal plate. 5. The exterior panel for a building having a power generation function according to claim 4, wherein the vertical wall portion is extended upward, and a flange portion is formed at an upper end of the vertical wall portion to cover substantially the entire upper surface of the frame body. 6. A cushion material between the reinforcing plate and the rear reinforcing bar.
A building exterior panel having a power generation function according to any one of claims 1 to 5, wherein the exterior panel is attached . 7. A solar cell panel , a heat insulating material and a surface side reinforcement.
Make a close contact with the back surface of the solar cell panel between the bars
The building exterior panel having a power generation function according to any one of claims 1 to 6, provided. 8. A frame having an outer edge portion on the back side of the solar cell panel.
Claim 1 of a waterproof sheet Ru extending to the outer surface of the body is interposed
7. A building exterior panel having a power generation function according to any one of 7. 9. Adjustment without providing a solar cell panel on a frame
The power generation according to any one of claims 1 to 8, wherein a part is formed.
Exterior building panel with functions. 10. A front edge portion and a rear edge portion of a solar cell panel
Front and rear holding means for holding in a watertight manner;
A pair of left and right sides that hold the side edges of the positive battery panel in a watertight manner
Section holding means, and the solar cell through these holding means.
10. The panel according to claim 1, wherein an edge portion of the panel is fixed to the frame body.
A building exterior panel having a power generation function according to item 1. 11. A building fixedly installed on the main roof of a building
11. The roof of an object is formed, any one of claims 1 to 10.
Exterior panel for building with power generation function.