JP3456250B2 - Roof 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 roof having a power generation function for generating power by a solar cell.

[0002]

2. Description of the Related Art In recent years, various solar power generation systems for general households have been proposed and put into practical use as part of efforts to address global environmental problems. Usually, the solar power generation system mainly includes a plurality of solar cell modules installed on the roof of a house and an inverter electrically connected to the solar cell modules.

The solar cell module comprises a solar cell element formed by forming an amorphous silicon semiconductor layer on a transparent substrate or attaching a crystalline silicon semiconductor plate on the transparent substrate; A solar cell element holding frame is provided, and the solar cell element is installed in a state of being floated on the roof tiles at a constant interval through a plurality of fixtures that are erected and fixed on a field plate of a house. In other words, a desired roof tile of a roof made of rafters, field boards and roof tiles provided on the main roof of a house is removed, and a fixture is vertically installed and attached to the field board in that portion.

By the way, the solar cell element using the amorphous silicon semiconductor basically has a lower power generation efficiency than the solar cell element using the crystalline silicon semiconductor, and has a relatively short period (2). By irradiating with light,
The power output decreases to about 80% of the power generated in the initial state,
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 using a crystalline silicon semiconductor. . Therefore, a solar cell module using an amorphous silicon semiconductor is cheaper and superior in appearance than a solar cell module using a crystalline silicon semiconductor, but its spread has been significantly delayed. However, this phenomenon of decreasing the power generation output (hereinafter, simply referred to as photo-deterioration) can be prevented by heating the solar cell element to a high temperature of 80 ° C. to 90 ° C. or higher, and can be recovered even if it is once deteriorated. Are known.

[0005]

The conventional solar cell module mounting structure in the solar power generation system has the following two major problems. The first problem is a problem due to wind. That is, 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, so that the solar cell module is not blown off even in strong winds. Requires a great increase in the mounting strength of the solar cell module. In addition, in order to solve this problem, it is possible to remove the roof tiles below the solar cell module and bring the solar cell module into close contact with the field plate. On the other hand, it is difficult to apply sufficient waterproofing, and there is concern about rain leaks and corrosion of field boards.

It is also possible to embed the solar cell module in the field plate to prevent rainwater and the like from entering between the solar cell module and the field plate while preventing the adverse effect of the wind on the solar cell module. 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.

The second problem is a problem due to the characteristics of the solar cell element. That is, in the mounting structure of the solar cell module, since the gap is formed between the solar cell module and the roof tile as described above, the temperature of the solar cell element is considerably increased by the irradiation of sunlight, 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 sides of the battery module, and when an amorphous silicon semiconductor is used as the solar cell element, power is generated due to photodegradation. It is inevitable that the output will drop significantly.

An object of the present invention is to provide a roof having a power generation function which is excellent in environmental resistance, is easy to install, and can prevent photodegradation even when a solar cell element made of an amorphous silicon semiconductor is used. That is.

[0009]

According to a first aspect of the present invention, there is provided a roof having a power generation function, a rectangular wooden frame fixed on a main roof of a house, a heat insulating material installed in an inner space of the wooden frame, and A solar cell panel configured by using a crystalline silicon semiconductor, in which a surface opposite to the light receiving surface is closely attached to the upper surface of the heat insulating material, and a wooden frame below the heat insulating material. lower ends in half provided fixed to a wooden frame, the cross-sectional of
It is provided with a roof panel having a reinforcing member that supports a heat material .

Here, the wooden frame body is provided over the uppermost and lowermost purlins, and the wooden frame is extended over the uppermost and lowermost purlins in the direction of the roof inclination. Connecting a plurality of wooden frames adjacent to each other, connecting a plurality of the wooden frames laterally in a row, and closing the upper opening of the wooden frame between the solar cell panel and the heat insulating material. The outer edge portion of the wooden frame is extended to the outer surface of the wooden frame, and the solar cell panel and the heat insulating material are brought into close contact with each other with the waterproof sheet interposed, and the heat insulating material has a two-layer structure. Insulation
Adhere to the surface of the solar cell panel opposite to the light receiving surface,
And with the waterproof sheet interposed between the second heat insulating material
Adhering both heat insulating materials, the waterproof sheet has adhesiveness
That the heat insulating material is composed of a shape-retaining member, and the reinforcing member is composed of a bar material that extends in at least one direction between the inner wall surfaces of the wooden frame body that face each other. the member, be constituted by a plate-like member for closing the wooden frame body side, a part of the body wooden made frame, providing the adjustment unit without the solar panel, a part of the wooden frame body, the solar cell panel By providing an adjusting unit that does not have, by dividing the power generation area on the roof into a plurality of with this adjusting unit, providing a plurality of wooden frames,
It is a preferred embodiment that the power generation amount obtained by the solar cell panel in one wooden frame is set to 15% or less of the power generation amount of the entire roof.

[0011]

In the roof having a power generation function according to the present invention, the rectangular wooden frame reinforced by the reinforcing member is fixed to the roof of the purlin, so that the frame on the side of the wooden frame functions as a rafter, It is possible to sufficiently secure the strength of the roof while omitting the field boards and rafters in the portion where the frame is provided. Moreover, since it is a wooden frame, it is easy to perform processing such as re-dimensioning at the construction site. Further, since the invasion of the wind to the bottom surface side of the solar cell panel is prevented, it is not necessary to take special measures against the wind.
Further, since the heat insulating material is provided in close contact with the bottom surface of the solar cell panel, heat dissipation from the bottom surface 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 interior of the house, prevents heat from being exhausted from the roof, and suppresses fluctuations in room temperature due to irradiation of sunlight.

Here, as in claim 2, the wooden frame is provided over the uppermost purlin and the lowermost purlin, or the wooden frame is defined as the uppermost purlin as in claim 3. When a plurality of consecutive wooden frames are connected in the roof tilting direction to the lowermost purlin and the adjacent wooden frames are joined together, the part where the wooden frame is provided and the corresponding rafters in multiple rows Can be omitted. Further, when the entire roof is made up of a plurality of wooden frames, it is possible to omit all the siding boards and rafters while ensuring the strength of the roof.

According to a fifth aspect of the present invention, a waterproof sheet is provided between the solar cell panel and the heat insulating material so as to close the upper opening of the wooden frame and the outer edge of the wooden frame extends to the outer surface of the wooden frame. If the solar cell panel and the heat insulating material are brought into close contact with each other with the sheet interposed, rain leakage from the portion where the wooden frame is provided can be reliably prevented. Also, as in claim 7, when you configure a member having an adhesive waterproof sheet, it is possible to easily couple the solar cell panel and the heat insulating material.

[0014] As claimed in claim 9, the reinforcing member, or constituted by rods which pass at least one direction between inner wall surfaces opposed wooden frame, as in claim 10, the reinforcing member, Wooden By using a plate-like member that closes the inside of the frame body, it becomes possible to further improve the strength and rigidity of the wooden frame body against twisting.

According to the eleventh aspect of the present invention, if the adjusting portion without the solar cell panel is provided in a part of the wooden frame, the attaching position of the solar cell panel is adjusted by cutting off a part of the adjusting portion. Without doing so, the dimensions of the wooden frame can be easily adjusted, and further, after the construction of the house, the adjusting section serves as a passage for movement, and maintenance and inspection of the solar cell panel can be easily performed. Further, as in claim 12, in the case where an adjusting portion not provided with a solar cell panel is provided in a part of the wooden frame and the power generating area on the roof is divided into a plurality of parts by this adjusting portion, the same as above. The operation can be obtained, and the maintenance and inspection of the solar cell panel can be performed more easily.

According to a thirteenth aspect , when a plurality of wooden frames are provided and the amount of power generated by the solar cell panel in one wooden frame is set to 15% or less of the amount of power generated by the entire roof,
Even if one solar cell panel fails, it is possible to prevent an excessive decrease in the amount of power generation.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, a plurality of left and right purlins 2 are provided at an upper portion of the house 1 at intervals in the inclination direction of the roof 3.
On top of the main building 2, the uppermost two
A plurality of roof panels 4 are provided in a row in the lateral direction so as to extend over the lowermost purlin 2 and the roof 3 of the house 1 is constituted by the plurality of roof panels 4. In other words, this house 1
In, the rafters, field boards and roof tiles are omitted, and the plurality of roof panels 4 function as rafters, field boards and roof tiles. However, the roof panel 4 may be divided into a plurality of front and rear parts, and adjacent parts may be joined together.

The roof panels 4 other than the leftmost end and the rightmost end of the plurality of roof panels 4 are constructed as follows. As shown in FIGS. 2 to 5, 9, and 10, a pair of side frames 10 having a length that extends over the uppermost purlin 2 and the lowermost purlin 2, front end portions of both side frames 10, and A substantially rectangular frame-shaped wooden frame body 12 including a pair of connecting frames 11 for connecting rear end portions is provided.
2 is fixed to the purlin 2 with nails or bolts (not shown), and the wooden frame bodies 12 connected in the lateral direction are also fixed with nails or bolts (not shown).

In the lower half of the wooden frame 12, rod-shaped reinforcing members 13 oriented in the left-right direction are provided at predetermined intervals along the inclination direction of the roof 3, and both ends of the reinforcing member 13 are located on the left and right side frames 10. Cushion material 14 having elasticity is provided on the reinforcing member 13.
A flat plate-shaped heat insulating material 15 is provided in the upper half portion, and the heat insulating material 15 is supported on the reinforcing member 13 via the cushion material 14, and the upper surface of the heat insulating material 15 is substantially the same height as the upper surface of the wooden frame 12. It is located in. However, it is almost L in the middle part of the wooden frame 12.
The heat insulating material 15 may be supported, for example, by fixing a metal fitting. Further, the reinforcing member 13 may be configured by a plate-shaped member that closes the inside of the wooden frame 12. Further, the wooden frame 12 and the reinforcing member 13 can be made of square wood, plywood, or the like.

As a material forming the heat insulating material 15,
Excellent heat insulation, heat retention, and heat storage, such as polystyrene foam, polyethylene foam, rigid polyurethane foam, flexible polyurethane foam, rigid vinyl chloride foam, urea foam, phenol foam, rubber foam, polypropylene, polyethylene terephthalate, perlite, vermiculite, Foam and porous materials such as foam glass, asbestos, rock wool, glass wool, ceramic fibers, animal and vegetable fibers, soft fiber materials, carbonaceous fibers, potassium titanate fibers and other fiber materials, calcium silicate, basic magnesium carbonate , Diatomaceous earth, diatomaceous earth insulation brick, fireproof insulation brick, castable fireproof insulation material, cork, granular material such as carbon powder, multi-layer foil material consisting of aluminum foil,
It is possible to use foam rubber materials such as hard foam rubber and chloroprene rubber foam, lightweight cellular concrete, and foam aluminum.

An adhesive waterproof sheet 16 is attached to the upper surface of the heat insulating material 15, and the outer edge of the waterproof sheet 16 extends outward from the heat insulating material 15 and is attached to the outer surface of the wooden frame 12. The waterproof sheet 16 prevents rainwater and the like from entering the wooden frame 12. The waterproof sheet 16 may be made of special rubberized asphalt compound, polyisobutylene, or the like. In addition, adhesive parts may be formed on both sides of the waterproof sheet 16, and the solar cell panel 17 may be attached to the heat insulating material 15 via the waterproof sheet 16.

Roof underlayer panels 18 are fixed to the upper portions near the front end and the rear end of the wooden frame 12, respectively, and on the waterproof sheet 16 above the heat insulating material 15 between the front and rear roof underlayer panels 18. A plurality of solar cell panels 17 are connected in series with a slight gap between adjacent solar cell panels 17
A sealing material 19 is filled in the gap between the two, and a portion corresponding to the roof base panel 18 constitutes an adjusting portion 20 in which the solar cell panel 17 is not provided.

The left and right end portions of the plurality of solar cell panels 17 are sandwiched between a glass retainer 21 fixed to the left and right side frames 10 and a heat insulating material 15 and fixed to a wooden frame 12, and the frontmost solar The front end portion of the battery panel 17 and the rear end portion of the rearmost solar cell panel 17 are sandwiched between the glass retainer 22 fixed to the front and rear roof underlayer panels 18 and the heat insulating material 15 and fixed to the wooden frame 12, The solar cell panel 17 is closely attached to the upper surface of the heat insulating material 15 via the waterproof sheet 16, and seal members 23 and 24 are mounted between the solar cell panel 17 and the glass retainers 21 and 22.
3, 24 and the sealing material 19 prevent rainwater and the like from entering between the waterproof sheet 16 and the solar cell panel 17.
Note that reference numeral 28 is a waterproof tape attached to the roof base panel 18 and the waterproof sheet 16 corresponding to the heat insulating material 15.

A terminal box 25 is provided at a substantially central portion of the lower surface of the solar cell panel 17, and the output line 26 connected to the terminal box 25 has a waterproof sheet 16 and a heat insulating material 1.
It passes through 5 and is led out to the lower side. The power generation amount obtained by the plurality of solar cell panels 17 is set to 15% or less of the power generation amount of the entire roof 3, and even if one solar cell panel 17 fails, an extreme decrease in power generation amount is prevented. Is configured.

The roof panels 4A at the left and right ends of the roof panel 4 have a symmetrical structure and basically the same structure as the roof panel 4, so the left one will be briefly described. As shown in FIG. 6 and FIG. 7, the side frame 10 is provided at a substantially central portion of the wooden frame body 12 in the left-right direction.
A center frame 27 is provided in parallel with the center frame 27, and a heat insulating material 15, a waterproof sheet 16 and a solar cell panel 17 (however, the width is about 1
1/2)) are provided in a laminated manner, and the heat insulating material 15, the waterproof sheet 16, and the roof base panel 18A are provided between the center frame 27 and the left side frame 10.
A portion corresponding to the roof base panel 18A constitutes an adjusting unit 20A in which the solar cell panel 17 is not provided.

Next, the solar cell panel 17 will be described. As shown in FIG. 8, the solar cell panel 17 basically has a transparent substrate 30, a solar cell element layer 31 formed on the lower surface of the transparent substrate 30, and a solar cell element layer 31.
The filling material 32 is provided below the filling material 32, and the back sheet 33 is provided below the filling material 32. As the translucent substrate 30, a tempered glass, a laminated glass, or another 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 31 includes the transparent substrate 3
0, a transparent conductive film, a p-i-n or n-i-p amorphous silicon layer, and a metal electrode layer are sequentially deposited on the laminated body, and EVA, PVB, polyisobutylene-based material is provided on the lower surface side. It is sealed and fixed in the translucent substrate 30 via a filling material 32 such as a resin.

The back sheet 33 is composed of a Tedler or the like in which aluminum foil is sanded. However, the filler 32 or the back sheet 33 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. Further, when EVA, PVB or the like is used as the filler 32, it may be sealed by a vacuum laminating method, and in the case of a polyisobutylene resin, this may be heated and fluidized and applied.

Next, a method for manufacturing the roof panel 4 will be briefly described. First, as shown in FIG.
The connecting frame 11 is fixed between the front end portions and the rear end portions of the pair of side frames 10, and the reinforcing member 13 is fixed to the side frame 10 to manufacture the wooden frame body 12. Next, as shown in FIG. 9 (b), the cushion members 14 are attached to the upper sides of the plurality of reinforcing members 13, and the plate-shaped heat insulating member 15 is mounted in the wooden frame body 12 from above to form the cushion members 14. Place on top.

Next, as shown in FIG. 9C, the heat insulating material 1
The waterproof sheet 16 is attached to the upper surface of the side frame 10, the upper surface of the side frame 10, and the outer surface of the side frame 10. Next, as shown in FIG. 10D, after attaching the waterproof tape 28 over the portion of the waterproof sheet 16 corresponding to the heat insulating material 15 and the roof underlayer panel 18, a plurality of waterproof tapes 28 are attached on the waterproof sheet 16. The solar cell panel 17 is set, the front and rear roof underlayer panels 18 are set, and the roof underlayer panel 18 is fixed to the wooden frame 12. Next, as shown in FIG. 10E, the sealing members 23 and 24 are set, the glass retainer 21 is fixed to the wooden frame 12, and the solar cell panel 17 is fixed to the wooden frame 12. The roof panel 4 as shown in 10 (f) is obtained. However, since the roof panel 4A is also manufactured in substantially the same manner as the roof panel 4, the description thereof will be omitted.

In this way, the roof panels 4 and 4A manufactured in the factory are transported to the construction site by a truck or the like, and after the dimension adjustment such as partially cutting the adjusting portions 20 and 20A on the site, the purlin 2 It will be fixed sequentially on top.

Next, the operation of the roof 3 having the power generation function will be described. The entire roof 3 will be composed of the roof panels 4 and 4A, but the wooden frame 12 of the roof panels 4 and 4A is provided over the uppermost purlin 2 and the lowermost purlin 2. Since the side frame 10 functions as a rafter and the strength and rigidity of the wooden frame 12 against twisting are increased by the reinforcing member 13, the reinforcing member 13 functions as a field board and omits the field board and rafters. It is possible to secure the strength of the roof 3 sufficiently.

Moreover, the adjusting portions 2 are provided in the vicinity of the front and rear ends of the roof panels 4 and 4A and on the sides of the roof panels 4A on both sides.
Since 0 and 20 A are provided respectively, the adjustment unit 2 is installed at the construction site.
The dimensions can be easily adjusted by cutting off a part of 0, 20A, etc., and after the building of the house 1, the adjusting section 20,
20A serves as a passage for movement, and maintenance and inspection work of the solar cell panel 17 can be easily performed.

Further, the heat insulating material 15 provided in close contact with the lower surface of the solar cell panel 17 prevents heat radiation from the lower surface of the solar cell panel 17 and accelerates the temperature rise of the solar cell panel 17, so that the solar radiation Thus, the solar cell panel 17 can be heated to 80 ° C. to 90 ° C. or higher, and even when an amorphous silicon semiconductor is used as the solar cell element, it is possible to effectively prevent a decrease in power generation output due to photodegradation.

Further, the heat insulating material 15 prevents heat from entering the house 1, prevents heat from the roof 3, and suppresses fluctuations in the indoor temperature due to sunlight irradiation. It is possible to improve the habitability of the.

Next, a modified example in which the structure of the roof panel 4 is partially changed will be described. (1) As shown in FIGS. 11 and 12, the heat insulating material 15 has a two-layer structure of a first heat insulating material 15A and a second heat insulating material 15B, and the first heat insulating material 15A is provided on the lower surface of the solar cell panel 17. Both the heat insulating materials 15A and 15B are bonded together and the waterproof sheet 16 is interposed between the both heat insulating materials 15A and 15B.
And a passage 40 extending in the front-rear direction is formed in the center portion in the width direction between the heat insulating materials 15A and 15B.
The output line 26 in the passage 40 on the upper side of 6,
The output line 26 may be led out from the upper end or the lower end of the wooden frame 12. In this case, since the output line 26 can be led out from the roof panels 4 and 4A without forming a hole in the waterproof sheet 16, the waterproof property can be further improved.

(2) As shown in FIG. 13, the heat insulating material 15
Is a two-layer structure of a first heat insulating material 15C and a second heat insulating material 15D, the first heat insulating material 15C is bonded to the lower surface of the solar cell panel 17, and a waterproof sheet 16 is provided between the two heat insulating materials 15C and 15D. Both of the heat insulating materials 15C, 15
D is brought into close contact, and a boundary portion 41 between both heat insulating materials 15C and 15D is provided.
Is formed in a substantially V shape so that the substantially central portion side in the width direction thereof projects upward, and a passage 42 extending in the front-rear direction is formed at the top of the boundary portion 41, and is formed in the passage 42 on the upper side of the waterproof sheet 16. The output line 26 may be arranged and the output line 26 may be led out from the upper end portion or the lower end portion of the wooden frame 12. In this case, in the same manner as described above, it is possible to improve the waterproof property, prevent rainwater that has entered the boundary 41 from entering the passage 42, and prevent the output line 26 from contacting rainwater.

(3) A cover glass having excellent impact resistance may be provided on the upper side of the solar cell panel 17 in a close contact manner or at intervals. Further, a filler may be enclosed between the solar cell panel 17 and the cover glass. (4) As shown in FIG. 14 (a), the roof panel 4
It is also possible to omit the solar cell panel 17 at the central portion in the front-rear direction, provide the roof base panel 45 at that portion to form the adjustment portion 46, and divide the entire roof 3 into front and rear portions by the adjustment portion 46. In addition, as shown in FIG. 14B, the two roof panels 4 in the central portion in the left-right direction among the plurality of roof panels 4 are configured in the same manner as the roof panels 4A at the left and right ends, and the roof base panel 47 is formed. The provided adjusting portion 48 may be formed to divide the entire roof 3 into four. Further, as shown in FIG. 14 (c), a part of the roof 3 may be configured by a normal roof 49 provided with rafters, siding and the like.

[0039]

EFFECTS OF THE INVENTION According to the roof having the power generation function of the present invention, it is possible to sufficiently secure the strength of the roof while omitting the field boards and rafters in the portion where the wooden frame is provided, and to resize the construction site. The temperature of the solar cell panel can be set to 80 ° C to 90 ° C or higher because it can be easily processed, there is no need to take special wind measures, and the temperature rise of the solar cell panel is promoted. Even if an amorphous silicon-based semiconductor is used as a solar cell element, it is possible to effectively prevent a decrease in power generation output due to photodegradation and to prevent fluctuations in indoor temperature due to sunlight irradiation, and It is possible to obtain effects such as improving the property.

In addition, claims 2 to 5, claim 7, 9 to 13
In addition to the above effects, the roof according to the present invention has the following effects. According to the roofs according to the second and third aspects, it is possible to omit the field board in the portion provided with the wooden frame and the plurality of rows of rafters corresponding thereto, thereby reducing the construction cost of the house. Further, in the roof according to claim 4, when the entire roof is composed of a plurality of wooden frames,
It is possible to omit all field boards and rafters while ensuring the strength of the roof. According to the roof of claim 5,
The waterproof sheet can surely prevent rain leakage from the part where the wooden frame is provided. Further, according to the roof of the seventh aspect , it is possible to easily bond the solar cell panel and the heat insulating material by forming the waterproof sheet with a member having adhesiveness.

According to the roofs of the ninth and tenth aspects, the strength and rigidity of the wooden frame against the twist can be further improved by the reinforcing member. According to the roof of the eleventh aspect , since the adjusting portion which does not include the solar cell panel is provided, the dimension of the wooden frame can be easily adjusted at the construction site, and the solar cell panel is provided after the construction of the house. It is possible to easily perform maintenance and inspection of.
Further, according to the roof of the twelfth aspect , since the power generation region on the roof is divided into a plurality of parts by the adjusting portion, it becomes possible to more easily perform maintenance and inspection of the solar cell panel. Claim
According to the roof of No. 13 , even if one solar cell panel breaks down, it is possible to prevent an extreme decrease in the amount of power generation.

[Brief description of drawings]

1] Perspective view of a house

[Figure 2] Longitudinal section near the roof

[Figure 3] Top view of the main part of the roof panel

4 is a sectional view taken along line IV-IV in FIG.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a view corresponding to FIG. 3 of the leftmost roof panel.

FIG. 7 is a sectional view taken along line VII-VII of FIG.

FIG. 8 is a vertical sectional view of a solar cell panel.

FIG. 9 is an explanatory diagram of a roof panel assembling method.

FIG. 10 is an explanatory view of a method for assembling the roof panel.

FIG. 11 is a view of a roof panel according to a first modification, which corresponds to FIG. 3.

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

FIG. 13 is a vertical cross-sectional view of a roof panel according to a second modification.

FIG. 14 is an explanatory diagram of the layout of the roof panel.

[Explanation of symbols]

1 house 2 purlins 3 roof 4 roof panels 10 side frame 11 connecting frame 12 wooden frame 13 Reinforcement member 14 Cushion material 15 Insulation 16 tarpaulin 17 Solar panel 18 Roof base panel 19 Seal material 20 Adjustment unit 21 glass holder 22 Glass foot 23 Seal member 24 Seal member 25 terminal box 26 output lines 27 Center frame 28 waterproof tape 4A roof panel 20A adjustment unit 30 translucent substrate 31 Solar cell element layer 32 Filling material 33 back sheet 15A insulation 15B insulation 40 passages 15C insulation 15D insulation 41 Border 42 passage 45 Roof base panel 46 Adjustment unit 47 Roof base panel 48 Adjustment unit 49 roof

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04D 13/18 E04D 3/40

Claims (13)

(57) [Claims] 1. A solar cell panel comprising a rectangular wooden frame fixed on the main roof of a house, a heat insulating material mounted in the internal space of the wooden frame, and an amorphous silicon semiconductor. , A solar cell panel that is attached to the upper surface of the heat insulating material so that the surface opposite to the light receiving surface is in close contact , and the end of the wooden frame is located inside the lower half of the wooden frame below the heat insulating material.
A roof having a power generation function, which includes a roof panel having a reinforcing member fixed to the body and supporting a heat insulating material . 2. A roof having a power generation function according to claim 1, wherein the wooden frame is provided over the uppermost purlin and the lowermost purlin. 3. A plurality of wooden frame bodies are continuously arranged in a roof inclination direction over the uppermost purlin and the lowermost purlin, and adjacent wooden frames are connected to each other. A roof with the described power generation function. 4. The roof having a power generating function according to claim 1, wherein a plurality of the wooden frames are arranged in a row in the lateral direction. 5. A waterproof sheet is interposed between the solar cell panel and the heat insulating material so that the upper opening of the wooden frame is closed and the outer edge of the wooden frame extends to the outer surface of the wooden frame. The solar cell panel and the heat insulating material are brought into close contact with each other in a state.
The roof having the power generation function according to any one of 4 above. 6. The heat insulating material has a two-layer structure, the first heat insulating material is adhered to the surface of the solar cell panel opposite to the light receiving surface, and a waterproof sheet is interposed between the first and second heat insulating materials. The roof having a power generation function according to any one of claims 1 to 4, wherein both heat insulating materials are closely attached in a closed state. 7. The roof having a power generation function according to claim 5, wherein the waterproof sheet has adhesiveness. 8. A roof having a power generation function according to claim 1, wherein the heat insulating material is formed of a material having shape retention. 9. The reinforcing member is a bar member extending in at least one direction between the inner wall surfaces of the wooden frame body which face each other.
A roof having the power generation function according to any one of 1. 10. The roof having a power generation function according to claim 1, wherein the reinforcing member is a plate-like member that closes the inside of the wooden frame. 11. The roof having a power generation function according to claim 1, wherein an adjusting portion having no solar cell panel is provided in a part of the wooden frame. 12. The wooden frame is provided with an adjusting section not provided with a solar cell panel in a part thereof, and the power generating area on the roof is divided into a plurality of parts by this adjusting section. Roof with the power generation function of. 13. A plurality of wooden frames are provided, and the amount of power generated by a solar cell panel in one wooden frame is 15% or less of the amount of power generated by the entire roof. A roof having the power generation function described in.