JP2001098703A - Roof structure and roofing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof tile structure for ensuring an integrated feeling in outer view in both regins where solar cell pannels or solar cell module tiles are layed and where they are not layed for improving outer looking. SOLUTION: This is a roof structure containing a region where solar cell module tiles Ka having solar cell modules M are layed on a roof surface and a region where they are not layed thereon, wherein dammy solar cell module tiles Kb, Kc having the similar color tone with that of the surfaces of the solar cell module tiles are layed on at least a part of the region where the solar cell module tiles are not layed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof structure in which a solar cell panel or a solar cell module tile is laid on a roof surface, and a method of roofing.

[0002]

2. Description of the Related Art Techniques of mounting a solar cell module on a roof tile used as a roof material of a building and converting solar energy into electricity and using the same are disclosed in Japanese Utility Model Laid-Open Nos. 62-52610 and 148417. 4-85
No. 24, for example.

The technique disclosed in Japanese Utility Model Laid-Open No. 62-52610 is
A concave portion having a shape suitable for a solar cell module is provided on the upper surface of an exterior material intended for a roof tile or an outer wall, and the solar cell module is mounted in the concave portion.

The technique disclosed in Japanese Utility Model Laid-Open No. 1-148417 is
The solar cell module is provided on the lower surface of the flat roof tile, and the lead wire of the solar cell module is led out from the space where the space is formed on the back surface of both ends of the upper edge of the flat roof tile.

In the technique disclosed in Japanese Utility Model Laid-Open No. 4-28524, a concave portion is provided on the surface of a roof tile, a solar cell module is bonded and fixed to the concave portion, and a terminal lead hole is formed in a part of the concave portion. The terminal of the solar cell module is led out from the terminal lead-out hole to the back side of the roof tile.

On the other hand, solar cell modules are roughly classified into crystal modules and thin film modules. In a crystalline solar cell module, solar cells formed using a small-area single-crystal semiconductor wafer on a plate glass (front cover glass) of the size of the module are 20 to
About 30 sheets are arranged and interconnected. The back surfaces of these single crystal cells are sealed and protected using a well-known filler such as EVA and a well-known protective film such as Tedra (registered trademark).

In a thin-film solar cell module (module integrated with a substrate), a transparent electrode layer, a semiconductor thin-film photoelectric conversion layer, and a back surface are directly formed on a glass plate having the size of the module and also serving as a front cover glass. The electrode layers are sequentially stacked. These layers are divided into a plurality of cells and electrically interconnected (integrated) using vapor deposition and patterning by laser scribing, etc., so that the desired voltage and current output can be obtained. can get. For protecting the back surface of the thin-film solar cell module, the same filler and protective film as in the case of the crystalline solar cell module can be used.

The thin-film solar cell module has an advantage that it can be easily formed in a larger area and can be manufactured at low cost, as compared with a crystalline solar cell module. For example, the dimensions and shape of a large-area thin-film solar cell module in recent years can be manufactured, for example, with a rectangular planar shape of about 90 cm × 45 cm and a thickness of about 6 to 8 mm.

When arranging a solar cell panel including a solar cell module on a roof, a predetermined frame is installed on a partial area of the roof on which a tile, a slate, or the like is installed, and a plurality of solar cell panels are mounted on the frame. Conventionally, a method of fixing an array has been used.

[0010]

However, as described above, a so-called zigzag construction is performed in which the solar cell module tiles and the roof tiles having a normal configuration are arranged on the roof of the building in a staggered manner. In order to simplify the wiring, a plurality of solar cell module tiles are concentrated and roofed. Basically, since the respective solar cell module tiles are arranged in a staggered manner, both side portions are formed in an uneven shape, and as it is, it becomes very unsightly and the appearance is impaired.

In view of this, it is conceivable to cut off the solar cell module tile at the portion protruding in a convex shape at the left and right halves so as to align it with the concave side portions of the upper and lower rows. The battery module cannot be cut at any position.

Japanese Utility Model Laid-Open No. 4-51523 discloses a roofing material in which a power generation tile and a general tile are roofed in a mixed state, and then the exposed surface of the general tile in a stepped portion is cut so as to conform to the shape. Is disclosed. This roofing material has an adhesive layer colored dark on one side of a transparent plate having good weather resistance. However, a special material must be manufactured as the roofing material, which has an adverse effect on the cost, and also requires a work of attaching the roofing material to the tile while cutting it appropriately, which is troublesome.

Further, in the method of installing the solar cell panel, only a part of the roof can be used as a power generation area, and the power generation capacity is limited. In addition, among the roof areas, the appearance of the roof is significantly different between the solar cell panel installation area and the other areas, and the problem of deteriorating the uniform appearance of a house has recently become particularly important. From such a viewpoint, in recent years, it has been attempted to construct a solar cell panel on the entire surface of the roof without constructing a tile or a slate on the roof.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sense of unity in appearance between a region where a solar cell panel or a solar cell module tile is laid and a region where the tile is not laid. It is an object of the present invention to provide a roof structure and a tiled roofing method which can be provided to improve the appearance.

[0015]

In order to achieve the above object, the present invention provides a roof structure including a region where a solar cell panel is laid on a roof surface and a region where the solar cell panel is not laid. A dummy solar cell panel having a color tone similar to the surface color of the solar cell panel is laid on at least a part of the area where the solar cell panel is not laid.

A second aspect of the present invention is a roof structure including a region where a solar cell module tile having a solar cell module is laid on a tile body on a roof surface and a region where the solar cell module tile is not laid. Is characterized in that a dummy solar cell module tile having a color tone similar to the surface color tone of the solar cell module tile is laid in at least a part of the area where no is laid.

According to a third aspect of the present invention, in the dummy solar cell module tile according to the second aspect, the vertical dimension and the horizontal dimension of the solar cell module tile are the same, or the vertical dimension is the same and the horizontal dimension is 1/1.
It is an integer.

According to a fourth aspect of the present invention, the dummy solar cell module tile according to the second aspect includes a tile main body and a dummy solar cell module mounted on the tile main body. The same size as the above, the lateral dimension is １ ／, and the tile body is mounted so as to be deviated rightward or leftward from the lateral center of the tile body.

A fifth aspect of the present invention is characterized in that the tile body of the dummy solar cell module tile of the second aspect is made of cement, synthetic resin, metal or glass.

According to a sixth aspect of the present invention, the dummy solar cell module according to the second aspect has a P color matching the color of the solar cell module.
It is selected from one of a VC plate, a color stainless plate, a painted glass plate and a solar cell module.

According to a seventh aspect of the present invention, when the solar cell module tiles of the second aspect are arranged in a staggered manner from the eaves side of the roof to the ridge side, the tiles are formed on concave step portions formed on both sides thereof. A dummy solar cell module tile is fitted.

A solar cell module tile having a solar cell module mounted on an upper surface of the tile main body and a tile body formed to have the same area as the tile main body of the solar cell module tile, the solar cell module being provided on the upper surface thereof 1/2 of the horizontal dimension of
A dummy solar cell module tile to which the dummy solar cell module is attached, and the solar cell module tiles are sequentially arranged in a staggered manner from the eaves side to the ridge side of the roof.
And the dummy solar cell module tile is fitted into a concave step formed in every other row of the solar cell module tile formed by the first tile roofing step, and the solar cell module tile and the dummy solar cell module tile And a second tile-roofing step of forming a square.

According to a ninth aspect, a plurality of solar cell module tile units are continuously laid on a roof surface as one unit, and a plurality of electrically wired solar cell module tile units are arranged to form a photoelectric conversion region. And a second roofing step of laying a dummy solar cell module tile in an area other than the photoelectric conversion area generated by the first roofing step to give a sense of unity with the solar cell module tile unit. A tiled method characterized by comprising:

According to the above configuration, the area where the solar cell panels or the solar cell module tiles are laid and the area where the solar cell module tiles are not laid have a sense of unity in appearance, and the appearance can be improved.

[0025]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 7 show a first embodiment, and FIG.
Is a perspective view of the solar cell module tile Ka, and FIG. 2 shows a state where the solar cell module tile Ka is tiled on the roof surface.

As shown in FIG. 1, the tile body 1 of the solar cell module tile Ka is formed into a rectangular flat plate by, for example, a cement tile (or a clay tile, a metal tile, a synthetic resin tile, or a glass tile). Overlap portions 1a and 1b are provided on both sides of the roof main body 1 which are adjacent to each other in a male-female relationship.

A front hanging portion 1c is provided on the back surface of the lower end portion of the tile body 1.
However, a rear rising portion 1d is provided on the upper end surface, and the front hanging portion 1c overlaps the upper surface of the lower tile body 1 in a tiled state as shown in FIG. It is configured to overlap the lower surface of the upper tile body 1.

The upper surface of the tile body 1 is provided with a rectangular recess 2 over substantially the entire surface, and the solar cell module M is fitted into the recess 2. The solar cell module M is attached to the tile main body 1 by an adhesive S applied to the bottom surface of the recess 2.

The solar cell module M is, for example, 1
Transparent electrode layer, amorphous semiconductor layer,
A back surface electrode layer is formed, and the back surface has a rectangular thin panel structure sealed with a sealing material for protecting the semiconductor layer and the back surface electrode layer. Note that the present invention is not limited to the amorphous semiconductor layer, and may be single crystal, polycrystal, microcrystal, Si-based, or compound-based.

The concave portion 2 is formed slightly deeper than the thickness of the solar cell module M, and a terminal box housing concave portion 3 is provided substantially at the center thereof. At the bottom of the terminal box storage recess 3, a cable lead-out hole 3 a is formed at a position shifted toward the upper end of the tile body 1. Further, the back surface of the terminal box storage recess 3 is formed by a front hanging portion 1c of the tile body 1.
And the tile body 1 can be stably mounted on the roof.

FIGS. 3A and 3B show dummy solar cell module roof tiles Kb and Kc. In any of the dummy solar cell module tiles Kb and Kc, the tile main body 5 has the same area and dimensions as the tile main body 1 constituting the solar cell module tile Ka, and the same material is used.

That is, the roof tile body 5 may be a roof tile itself having a normal configuration, and overlap portions 5a and 5b having the same configuration as the roof tile body 1 of the solar cell module roof Ka.
Each has a front hanging portion 5c and a rear rising portion 5d.

The dummy solar cell module tile Kb shown in FIG. 3A has a dummy solar cell 6 that extends from the vicinity of the overlap portion 5a on the upper surface of the tile main body 5 to the substantially central portion in the width direction from the vicinity of the overlap portion 5a on the left side of the figure. Is installed.

The dummy solar cell module tile Kc shown in FIG. 3B has a dummy solar cell 6 from the vicinity of the overlapping portion 5b on the upper surface of the tile main body 5 and from the vicinity of the overlap portion 5b on the right side of the figure. Is installed.

That is, the dummy solar cell 6 shown in FIGS. 3A and 3B is the same as the vertical dimension of the solar cell module M, has a horizontal dimension of 、, and is positioned from the center of the tile body 5 in the horizontal direction. They are arranged to the left or right.

As an actual dummy solar cell 6, a PVC plate, a color stainless steel plate, a painted glass plate, or the like that matches the color of the solar cell module M is used, and is, for example, adhered and fixed to the upper surface of the tile main body 5. Although a large number of streaks are formed on the surface of the solar cell module M, they can hardly be confirmed in a state where the solar cell module M is mounted on the roof, so that the streaks need not be formed as the dummy solar cells 6.

Next, such a solar cell module tile K
a and the method of roofing using the dummy solar cell module tiles Kb and Kc will be described.

FIG. 4 schematically shows a state in which the roofing work has been completed on the roof. Here, for the sake of simplicity, it is assumed that the uppermost row on the ridge side is the first row, and tiled up to, for example, the sixth row over the eaves side.

In each row, a roof tile K having a normal configuration and the above-described solar cell module tile Ka or a dummy solar cell module tile Kc according to the row are combined as described later to form a substantially rectangular solar cell module. The tile group KA can be formed.

FIG. 5 shows a state in which the first row, which is the uppermost row on the ridge side, and the second row below the first row are tiled. In the first row, only the normal roof tile K is used in the first row, and the second roof tile is used in the second row, similarly to the normal roofing work, from the roof ridge side to the eaves side, or directly through the tile base material. In the row, the solar cell module tiles Ka are placed only in the central portion, and the roof tiles K having a normal configuration are sequentially placed on both sides thereof in a so-called staggered manner.

In these roof tiles K and solar cell module tiles Ka, the tile bodies 1 adjacent to each other on the left and right are
Are overlapped with each other in a male-female relationship, and nails are passed through mounting holes provided at the upper end side of the tile body 1 to be fixed to the field board.

Also, the rear rising portion 1d of the lower tile body 1
The top hanging part 1c of the upper tile body 1 is overlapped with the upper part of the roof tile body 1 and the drain hole of the upper tile body 1 is connected to the lower tile body 1
Is located (eave side) below the rear rising portion 1d. Then, the roof tile body 1 in the upper stage is also fixed to the field board by passing nails through the mounting holes.

In this manner, when the roof tile K of the normal configuration is arranged in the first row, the roof tile K of the normal configuration and the solar cell module tile Ka are placed in the lower row, the second row, in the upper and lower rows. Perform a staggered tile. Here, the solar cell module tile Ka is disposed substantially at the center of the roof.

FIG. 6 schematically shows the third and fourth rows of tiled states. By arranging the solar cell module tiles Ka in a staggered manner in each row, a concave step portion is formed between the solar cell module tiles Ka on both sides of the second and fourth rows.

Therefore, dummy solar cell module roof tiles Kb and Kc are fitted into the concave steps. In the concave step on the right side of the figure, the roof tile body 5 as described above with reference to FIG.
A dummy solar cell module tile Kb having a dummy solar cell 6 attached thereto is fitted into the left half of the figure, and the concave step portion on the left side of the figure is fitted to the right half of the tile main body 5 as previously described with reference to FIG. The dummy solar cell module roof tile Kc including the dummy solar cell 6 is fitted. A roof tile K having a normal configuration is arranged on both sides of the dummy solar cell module tiles Kb and Kc or the solar cell module tiles Ka.

FIG. 7 schematically shows the fifth-row tiled state. Since the solar cell module tile Ka is attached to the center, the both sides become concave steps, and the dummy solar cell module tiles Kb and Kc are fitted in the same manner as in the third row.

As shown in FIG. 4 again, the roofing in the sixth row is the same as that in the second and fourth rows, and when the roofing is completed, a group of square-shaped solar cell module tiles is provided at the center of the roof. Since the KA is arranged and the dummy solar cell 6 is made to have almost the same color as the solar cell module M, the roof appearance is good.

The dummy solar cell module tiles Kb,
As the dummy solar cell 6 of Kc, one having the same color as that of the solar cell module M, such as a PVC plate, is used. However, the present invention is not limited to this, and the solar cell module itself may be used. In this case, the appearance other than the shape is the same as that of the solar cell module, which is preferable.

FIG. 8 shows the second embodiment, and schematically shows a state in which the roofing work on the roof is completed. As the dummy solar cell 6A, using the dummy solar cell module tiles Kb and Kc whose right side or left side is inclined, a solar cell module tile group KB having a shape substantially along the slope of the ridgeline of the roof.
It is provided with.

FIGS. 9 and 10 show a third embodiment.
A plurality of solar cell modules tile Ka ₁ ~K on the roof surface
It is obtained by the solar cell module roof tile unit KU continuously laying a _6. That is, in this embodiment, six solar cell module roof tiles K as shown in FIG.
a _{1 to} Ka ₆ are continuously laid in a substantially L-shape, and these are electrically wired by lead wires 7 to form a lower solar cell module roof unit KU ₁ , and the lower solar cell module roof unit KU ₁ shows the case where the laid and the upper side solar cell module roof tile unit KU ₂ consecutive inverted L-shape.

When a plurality of solar cell module tile units KU are laid as described above, a photoelectric conversion region 8 is formed, and the upper-stage solar cell module tile unit KU is further formed.
Outside the photoelectric conversion region 9 corresponding to the area of the three solar cell module tiles is formed on the upper side of ₂ . Therefore, by laying the dummy solar cell module tile Kd outside the photoelectric conversion region 9, it is possible to give a sense of unity in appearance with the solar cell module tile unit KU. The dummy solar cell module tile Kd used here has a dummy solar cell 6 mounted on substantially the entire surface of the tile main body 5 as shown in FIG.

FIGS. 11 and 12 show a fourth embodiment.
FIG. 11 shows a plurality of solar panels Pa on the roof surface.
Continuously laid to make a solar panel unit PU
It is. That is, in the present embodiment, six solar battery panels are used.
Flannel Pa₁~ Pa₆Are continuously laid in a substantially L-shape,
These are electrically wired by the lead wire 7 and
Positive battery panel unit PU₁And this lower solar power
Pond panel unit PU₁ The upper side solar panel unit
PU₂Is shown.

[0054] When laying a plurality of solar panel unit PU, as described above, the photoelectric conversion region 10 are formed, the photoelectric further corresponds to the area of the three solar panels Pa above the upper side solar panels PU ₂ The outside of the conversion area 11 is created. Therefore, by laying the dummy solar cell panel Pd outside the photoelectric conversion region 11, it is possible to give a sense of unity in appearance with the solar cell panel unit PU.

Here, a color metal plate having a color tone similar to the color tone of the surface of the solar cell panel Pa is used as the dummy solar cell panel Pd. As an example of such a color metal plate, an aluminum plate that has been subjected to anodizing treatment as a surface chemical treatment can be used. It goes without saying that the aluminum plate here includes an aluminum alloy plate. The aluminum anodic oxide coating is a very fine honeycomb-like porous coating. In such a porous coating, the color of the anodic oxide coating itself can be changed by adjusting the type of acid used in the anodic oxidation and the alloying element in aluminum. In addition, the honeycomb-shaped porous coating makes it easier to adsorb dyes and other metal ions into the porous pores, and the porous oxide coating can be sealed with hydrate to confine the coloring material. You can also. As described above, the color aluminum plate colored or colored using the anodic oxide film has excellent weather resistance that does not cause discoloration or browning even under long-term sunlight.

Further, as the color metal plate, a stainless steel plate or a titanium plate on which an oxide film having a thickness controlled by a surface chemical treatment is formed can be used. An oxide film formed on the surface of a stainless steel plate or titanium plate is called a passivation film, which not only protects the underlying metal layer from corrosion but also adjusts the thickness of the film to prevent light interference of the film. Can produce various colors.
For example, if an oxide film is formed on the surface of a stainless steel plate in a mixed acid solution of chromic acid and sulfuric acid, the thickness of the oxide film increases, and the color tone is blue, gray, gonored,
Stainless steel sheets of various colors, which change like magenta and green, can be obtained. Further, it is possible to further perform a hardening treatment on the stainless steel plate thus colored. This hardening treatment further improves the abrasion resistance and corrosion resistance of the coloring film. For example, in a mixed acid solution of chromic acid and phosphoric acid, the hardening treatment can be performed by performing a cathodic electrolytic treatment similar to chromium plating. it can.

As shown in FIG. 12, the periphery of the dummy solar cell panel Pd is bent in a U-shape, and the thickness T of the dummy solar cell panel Pd in the portion bent in the U-shape is equal to the thickness of the solar cell. It is made substantially the same as the thickness of the panel Pa. This is because the method of installing the solar cell panel Pa on the roof can be applied to the dummy solar cell panel Pd as it is.

The thickness T of the dummy solar cell panel Pd
The means for making the thickness substantially the same as the thickness of the solar cell panel Pa is not limited to providing a bent portion in a U-shape at the periphery, but a height adjustment block of a synthetic resin, wood, or the like at the periphery. May be fixed.

[0059]

As described above, according to the present invention,
There is an effect that the area where the solar cell panel or the solar cell module tile is laid and the area where the solar cell module tile is not laid have a sense of unity in appearance, and an aesthetic appearance can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a solar cell module tile showing a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional view showing the same embodiment in a state where a solar cell module tile is roofed on the roof.

FIG. 3 is a perspective view of the dummy solar cell module tile in which dummy solar cells are attached to different portions, showing the same embodiment.

FIG. 4 is a diagram schematically showing a state in which the roof has been tiled, showing the embodiment;

FIG. 5 is a diagram schematically showing an initial state of tile roofing, showing the embodiment.

FIG. 6 is a view schematically showing a tiled state at a further advanced stage, showing the embodiment.

FIG. 7 is a view schematically showing the tiled state at a further advanced stage, showing the embodiment.

FIG. 8 is a view schematically showing a tiled state of a roof, showing a second embodiment of the present invention.

FIG. 9 is a view schematically showing a tiled state of a roof, showing a third embodiment of the present invention.

10A and 10B show the same embodiment, wherein FIG. 10A is a plan view of a solar cell module tile, and FIG. 10B is a plan view of a dummy solar cell module tile.

FIG. 11 is a view schematically showing a tiled state of a roof, showing a third embodiment of the present invention.

FIG. 12 is a perspective view of the dummy solar cell panel of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Tile body, M ... Solar cell module, Ka ... Solar cell module tile, 5 ... Tile body, 6, 6A ... Dummy solar cell, Kb, Kc ... Dummy solar cell module tile, K ... Roof tile of normal structure, KA … Groups of solar cell module tiles.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) E04D 1/30 603 E04D 1/30 603H 13/18 13/18

Claims (9)

[Claims] 1. A roof structure including a region where a solar cell panel is laid on a roof surface and a region where the solar cell panel is not laid, wherein the solar cell is provided in at least a part of the region where the solar cell panel is not laid. A roof structure in which a dummy solar cell panel having a color tone similar to the surface color tone of the panel is laid. 2. A roof structure including, on a roof surface, a region where a solar cell module tile having a solar cell module is laid on a tile main body and a region where the solar cell module tile is not laid, wherein the solar cell module tile is laid. A roof structure, wherein a dummy solar cell module tile having a color tone similar to the surface color tone of the solar cell module tile is laid on at least a part of the area where the roof is not provided. 3. The dummy solar cell module tile has the same vertical dimension and horizontal dimension as the solar cell module tile, or the same vertical dimension and a horizontal dimension of 1 / integer. The described roof structure. 4. The dummy solar cell module tile comprises a tile main body and a dummy solar cell module mounted on the tile main body, and the dummy solar cell module has the same vertical dimension and horizontal dimension as the solar cell module. 3. The roof structure according to claim 2, wherein the roof structure is mounted to be shifted rightward or leftward from a lateral center of the tile body. 5. The roof structure according to claim 2, wherein the tile body of the dummy solar cell module tile is made of cement, synthetic resin, metal, or glass. 6. The dummy solar cell module is selected from any one of a PVC plate, a color stainless steel plate, a coated glass plate, and a solar cell module that match the color of the solar cell module. 2. The roof structure according to 2. 7. When the solar cell module tiles are sequentially arranged in a staggered manner from the eaves side to the ridge side of the roof, dummy solar cell module tiles are provided at concave steps formed on both sides thereof. The roof structure tile according to claim 2, wherein the roof structure tile is fitted. 8. A solar cell module tile in which a solar cell module is mounted on an upper surface of a tile main body, and a tile main body formed to have the same area as the tile main body of the solar cell module tile. A first roofing step in which a dummy solar cell module tile on which a half of the dummy solar cell module is mounted is provided, and the solar cell module tiles are sequentially arranged in a staggered manner from the eaves side of the roof to the ridge side; The dummy solar cell module tile is fitted into a concave step formed in every other row of the solar cell module tile formed by the first roofing step, and is formed into a square by the solar cell module tile and the dummy solar cell module tile. And a second roofing step. 9. A first tile roofing step of continuously laying a plurality of sheets as one unit on a roof surface and arranging a plurality of electrically wired solar cell module tile units to form a photoelectric conversion region. And laying a dummy solar cell module tile in an area other than the photoelectric conversion area generated by the first roofing step to give a sense of unity in appearance with the solar cell module tile unit.
A roofing method.