JPH11200561A - Solar-cell holding tile and connecting structure of solar-cell holding tile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar-cell holding tile, which can be positioned on a sheathing roof board by utilizing a batten for a holding tile and by which installation operation efficiency is improved and the waterproofness of the connecting section of the tile is attained, and connecting structure to a roof. SOLUTION: Retaining piece 13D for retaining to battens E for holding tiles are projected from the ridge-side horizontal frame materials 1D of cell holding frames, and drip caps, to which elastic waterproofing materials are installed, are disposed to the lower sections of the joining sections of the side end sections of the solar-cell holding tiles and the side end sections of roofing tiles, and brought into contact elastically with the hanging sections of the overlapping pieces of cell-holding tile side end sections. Waterproof sheets 4 and 5 are mounted on the undersides of the edge sections of eaves of the solar-cell holding tiles and the top face sides of the ridge side end sections, and the upper and lower solar-cell holding tiles are joined mutually.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photovoltaic cell holding tile used for installing a photovoltaic cell unit for generating electric power by sunlight and a joining structure of the photovoltaic cell holding tile.

[0002]

2. Description of the Related Art When roof tiles for holding photovoltaic cells are laid on a field board, the photovoltaic cell holding tiles are fixed with screws on the field board to which the tile bars are fixed. Prior to screwing, the solar cell holding tile must be positioned on the base plate. However, since conventional solar cell holding tiles did not include a means for positioning, it was necessary for an operator to hold the solar cell holding tiles by hand so as not to slip off the inclined roof, Since the solar cell unit is composed of several tens of solar cell holding tiles, there has been a problem that the efficiency of installation work of the solar cell unit is reduced. Also, when the cell holding frame is a molded product such as aluminum, the overlapping portion of the upper and lower solar cell holding tiles is worn due to expansion and contraction of the cell holding frame due to temperature change, and the waterproof function is reduced. was there. Furthermore, the joint between the solar cell holding tile and the ordinary roof tile is such that the side end of the solar cell holding tile and the side end of the roof tile are abutted, and a gap between the abutting portions is filled with a sealing material. However, there has been a problem that a sufficient waterproof effect cannot be obtained, and a joint between the solar cell holding tile and a normal roof tile becomes a weak point in waterproofing.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and it is an object of the present invention to provide a structure in which an operator does not need to hold a solar cell holding tile. It can be positioned on a field board using a roof tile, improving the efficiency of solar cell unit installation work.
A joint structure of a solar cell holding tile and a roof in which a solar cell unit holding tile does not become a weak point in waterproofing without a decrease in waterproof function due to wear of a cell holding frame.

[0004]

In order to achieve the above object, a solar cell holding tile according to claim 1 is a solar cell holding tile in which a solar cell is attached to a cell holding frame, and is hooked on a roof tile. Is provided so as to protrude downward from the ridge side frame material of the cell holding frame.

According to a second aspect of the present invention, in the solar cell holding tile according to the first aspect, the lower surface of the eave-side horizontal frame member of the cell holding frame is prevented from being worn due to contact between the tiles. It is characterized by the provision of a waterproof sheet that also functions.

According to a third aspect of the present invention, there is provided a solar cell holding tile according to the first or second aspect.
The outer dimensions of the cell holding frame are set to be the same as the outer dimensions of a plurality of roof tiles arranged in a row in the horizontal direction on the roof base.

According to a fourth aspect of the present invention, there is provided a joint structure for a solar cell holding tile, wherein an elastic waterproof material is provided on an upper surface of a drain plate below a joint between a side end of the solar cell holding tile and a side end of the roof tile. A waterproof tether that is attached is provided, and a side end of the solar cell holding tile and a side end of the roof tile are brought into elastic contact with an elastic waterproof material of the waterproof tether.

According to a fifth aspect of the present invention, a waterproof sheet is attached to a lower surface of an eave tip of a solar cell holding tile, and an upper solar cell is mounted on a ridge side of a lower solar cell holding tile. The waterproofing sheet on the eaves side of the cell holding tile is overlapped and the solar cell holding tiles are joined to each other.

According to a sixth aspect of the present invention, a waterproof sheet is attached to the lower surface of the eaves tip and the upper surface of the ridge end of the solar cell holding tile, and the lower solar cell holding tile is attached. It is characterized in that the solar cell holding tiles are joined together by overlaying the eaves-side waterproof sheet of the upper solar cell holding tile on the roof ridge side waterproof sheet.

[0010]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. 1 is a perspective view of a solar cell holding tile A, FIG. 2 is a sectional view taken along line XX of FIG. 1, and FIG.
5 is a sectional view taken along the line YY in FIG. As shown in FIG. 1, the solar cell holding tile A is configured by fixing a solar cell 2 in a cell holding frame 1. The cell holding frame 1 is formed by joining a pair of left and right vertical frame members 1A, 1B, an eave-side horizontal frame member 1C, and a ridge-side horizontal frame member 1D, and these frame members 1A, 1B, 1
C and 1D are hollow molded products made of a noncombustible material such as aluminum. Since the cell holding frame 1 is formed of a non-combustible material, the solar cell 2 can be protected. The non-combustible material includes a flame-retardant synthetic resin and a quasi-non-combustible material in addition to a metal material and the like. Further, as the solar battery cell 2, a solar battery cell which is hardly affected by temperature dependency is employed.

The horizontal dimension of the cell holding frame 1 is set to be the same as the length when a plurality of flat tiles (hereinafter, referred to as roof tiles) B such as asbestos slate tiles and metal tiles are laid in a horizontal direction. The vertical dimension and thickness of the cell holding frame 1 are set to be the same as the vertical dimension and thickness dimension of the roof tile B. The horizontal dimension of the cell holding frame 1 is set to, for example, about 130 cm, and the vertical dimension of the cell holding frame 1 is set to, for example, about 35 cm.
And the thickness dimension of the cell holding frame 1 is, for example, about 3 c
m. In addition, the code | symbol L in FIG. 1 has shown the tile climbing working dimension of the solar cell holding tile A which is the effective length of a tile. As shown in FIGS. 2 and 3, the cell holding frame 1
Is provided with a fixing groove 3 over the entire circumference, and a peripheral portion of the solar cell 2 is fitted into the fixing groove 3 via a sealing material. The fixing groove 3 is formed by a pair of upper and lower inner flanges 3 </ b> A and 3 </ b> B provided on the inner peripheral side of the cell holding frame 1.

As shown in FIG. 2, the eave-side horizontal frame member 1C of the cell holding frame 1 has a concealed piece 13C suspended from the lower end of the front part of the eave-side horizontal frame material main body 11C, and is attached to the lower end of the concealed piece 13C. Water return 1
The waterproof sheet 4 is attached to the lower surface of the water return 12C. The waterproof sheet 4 prevents the contact with the lower solar cell holding tile A and the infiltration of rainwater from the joint with the lower roof tile B, and the solar cell by contact with the lower solar cell holding tile A. This is to prevent the upper surface of the ridge side frame member 1D of the cell holding frame 1 of the holding tile A from being worn. In particular, it prevents wear of the overlapped portion of the upper and lower solar cell holding tiles A due to expansion and contraction of the cell holding frame due to temperature change, and prevents deterioration of the waterproof function.
The waterproof sheet 4 is made of a waterproof material such as a soft synthetic resin or a soft rubber having durability, abrasion resistance, water resistance, and light resistance, and has a thin thickness. Water return 1
When the waterproof sheet 4 is attached to the lower surface of the 2C, an adhesive layer is formed on one surface side of the waterproof sheet 4 in advance, and the waterproof sheet 4 is attached to the lower surface of the water return 12C with the adhesive layer. Alternatively, an adhesive may be applied to the lower surface of the water return 12C or the waterproof sheet 4 at the construction site, and the waterproof sheet 4 may be attached to the lower surface of the water return 12C. Also, the waterproof sheet 4 is made of eave-side horizontal frame material 1C.
May be formed by applying a waterproof material such as a soft synthetic resin or a soft rubber to the lower surface of the water return 12C.

As shown in FIG. 2, the ridge-side horizontal frame member 1D of the cell holding frame 1 has a drainer 12D erected at the ridge-side end of the upper surface of the ridge-side horizontal frame member main body 11D. A hook 13D projects downward from the lower surface of the rear part of the material body 11D. As shown in FIG. 10, the hanging pieces 13D are to be hooked on the tile bar E of the roof base portion C, and the projecting length of the hanging pieces 13D is shorter than the height dimension of the tile bar E. Is set. In the drawings, a hook 1
The 3D is formed over the entire length of the ridge-side horizontal frame member 1D, but is not necessarily formed over the entire length. The width dimension of the ridge side horizontal frame member 1D is larger than the width dimension of the eave side horizontal frame member 1C, and is set to, for example, about 9 cm.

As shown in FIGS. 1 and 3, the cell holding frame 1
In the vertical frame material 1A, an underlap piece 12A is horizontally extended from a lower end on an outer peripheral side of a vertical frame material main body 11A having a fixing groove 3 on an inner peripheral side, and a rising portion 13A is provided at a tip of the underlap piece 12A. It is configured. A reinforcing rib 14A is provided at the center in the width direction on the upper surface side of the underlap piece 12A, and an insertion hole 15A is formed through the reinforcing rib 14A. Therefore, as shown in FIG.
When the screw 6 is inserted into A and the underlap piece 12A is screwed to the roof foundation C, the fastening force of the screw 6 is dispersed by the reinforcing rib 14A and concentrated on the underlap piece 12A near the insertion hole 15A. As a result, deformation of the underlap piece 12A can be prevented.

As shown in FIGS. 1 and 3, the cell holding frame 1
In the vertical frame member 1B, the overlap piece 12B is horizontally extended from the upper end of the outer side surface of the vertical frame member main body 11B having the fixing groove 3 on the inner peripheral side, and the hanging portion 1 is attached to the tip of the overlap piece 12B.
3B, and the overlapping piece 12B
Is formed with an insertion hole 14B at the base end.

FIG. 4 is a perspective view of a waterproof joint 7 for waterproofing a joint between a solar cell holding tile A and a roof tile B adjacent thereto. The waterproof joint 7 is long in the direction of the eaves. An elastic waterproof material 7C is provided at the center in the width direction of the upper surface of the horizontal plate portion 7B of the drainer plate 7A having an L-shaped cross section, and drainers 7D and 7E are formed at both ends of the drainer plate 7A. .

The photovoltaic cell holding tile A constructed as described above is fixed together with the roof tile B on the roof base C as shown in FIGS. 6 to 8 are perspective views showing a construction process of the solar cell unit D and the roof tile B, FIG. 9 is a perspective view showing a state where the solar cell unit D is installed on the roof, and FIG. 10 is a solar cell unit. FIG. 11 is a longitudinal sectional view of the roof on which D is installed, and FIG. 11 is a transverse sectional view of the roof on which the solar cell unit is installed.
Hereinafter, the solar cell unit D using the solar cell holding tile A
The installation work and the roofing work of the roof tile B will be described.
First, asphalt roofing and a color steel plate are overlaid on a base plate to form a roof base portion C. In addition, the roof tile D is fixed on the eaves side.

Next, as shown in FIG. 5 and FIG. 6, the tile bar E and the cell mounting plate F of the roof base portion C are fixed by fixtures. A gap E between the cell mounting plate F and the roof tile E immediately below for passing the positive terminal 8 of the electric wire of the solar cell holding roof tile A
1 are formed, and a gap E2 is formed between the roof tiles E to pass the minus terminal 9 of the electric wire of the solar cell holding roof tile A.
The cell mounting plate F is for stably fixing the solar cell holding tile A to the roof foundation C by increasing the screwing depth of the screw 6. The symbol J in FIG.
The symbol K indicates the solar cell holding tile A
7 is a line showing the position of the side end surface of the solar cell holding tile A when the roof tiles are laid.

As shown in FIGS. 10 and 11, before fixing the solar cell holding tile A to the roof base part C with the screw 6,
The hanging piece 13D of the solar cell holding tile A is hooked on the tile bar E to position the solar cell holding tile A. The roofing of the photovoltaic cell holding tile A is performed in order from the eaves side in the same manner as a normal tile. Next, as shown in FIG.
The solar cell holding tiles A adjacent to each other in the lateral direction are:
3 is passed through the insertion holes 15A and 14B of the overlap pieces 12B and the underlap pieces 12A of the vertical frame members 1A and 1B.
It is fixed to the roof base part C with the screws 6. The screw 6 is screwed into the cell mounting plate F and the roof foundation C as shown in FIG. Note that the roof tile B is also fixed with the screws 6.

The screw 6 is made of stainless steel, and the non-threaded portion of the shaft of the screw 6 is covered with an insulating material 6A.
A rubber packing 6B is attached to the base end of the shaft portion.
As shown in FIG. 11, a part of the outer peripheral edge of the head 6B of the screw 6 passed through the insertion hole 14B of the overlap piece 12B of the vertical frame member 1B of the cell holding frame 1 hangs on the vertical frame member body 11B. This prevents occurrence of concentrated load on the overlap piece 12B due to fastening the screw 6 to the overlap piece 12B.

Then, as shown in FIG. 6, the roof tile B and the solar cell holding tile A are attached from the eaves side to the ridge side. Further, a part of the hook 13D of the solar cell holding tile A, that is, a portion corresponding to the gap E2 of the tile bar E when the solar cell holding tile A is laid on the roof base portion C, is cut. The minus terminal 9 of the wiring of the solar cell 2 is led out from the cut portion toward the ridge side. In addition, the overlap size of the upper and lower solar cell holding tiles A, A is 7 cm to 9 c.
Set to m.

Next, as shown in FIGS. 7 and 11, when the roof tile B is located at the end of the solar cell holding tile A,
The waterproof connecting member 7 is disposed so as to be located below a joint between the overlap piece 12B of the solar cell holding tile A and the roof tile B. That is, the hanging portion 13B of the overlap piece 12B and the end of the roof tile B are abutted, and are brought into elastic contact with the elastic waterproof material 7C of the waterproof joint body 7. Further, the caulking material 10 is filled between the hanging portion 13B of the overlap piece 12B of the solar cell holding tile A and the roof tile B. In addition, as shown in FIG. 11, the vertical frame material main body 11 having the underlap piece 12A of the solar battery cell holding tile A is provided.
It is preferable to fill the caulking material also between A and the roof tile B.

As shown in FIG. 8, the ridge side portion of the joint between the adjacent solar cell holding tiles A, A is covered with a joining waterproof sheet 5A. Further, as shown in FIG. 7, the ridge side portion of the joint between the roof tile B and the solar cell holding tile A which are adjacent in the lateral direction is covered with the joining waterproof sheet 5A. In this manner, the solar cell holding tile A and the roof tile B
And the installation of the solar cell unit D is completed as shown in FIG. In addition, the code | symbol M in a figure is a ridge part.

As shown in FIG. 10, when the upper and lower solar cell holding tiles A overlap each other, the waterproof sheet 4 of the water return 12C of the eave side horizontal frame member 1C of the upper solar cell holding tile A is provided.
The upper and lower solar cell holding tiles A of the lower solar cell holding tile A are in close contact with the upper surface portion of the ridge side horizontal frame member 1D of the cell holding frame 1 of the lower solar cell holding tile A, so that the overlapping portion does not become a weak point in waterproofing. Further, the wear of the solar cell holding tile A can be prevented by the waterproof sheet 4. As shown in FIG. 10, the gap between the solar cell holding tile A and the roof tile B located below the solar cell holding tile A is hidden by the hidden piece 13C of the eave-side horizontal frame member 1C.

As shown in FIG. 11, at the joint between the solar cell holding tile A and the roof tile B in the horizontal direction, the caulking material 10 and the elastic waterproofing material 7C of the waterproof connecting member 7 and the draining plate 7A
By performing the three-fold waterproofing process, an excellent waterproofing function can be exerted at the end of the roof tile B, which is likely to be a weak point in waterproofing, particularly at the junction with the cut end of the roof tile B. As shown in FIG. 11, the joints between the solar cell holding tiles A adjacent to each other in the lateral direction and the joint between the solar cell holding tiles A and the roof tile B are provided with water return spaces H, I and P are formed.

As shown in FIG. 10, the electric wire of the solar cell holding tile A is finally wired from the insertion hole G1 of the wiring box G attached to the roof base C near the ridge to the back of the ceiling. . The wiring box G is mounted in a mounting hole C1 provided in the roof base part C.

The solar cell holding tile A can be laid and the solar cell unit D can be installed on the roof in the same manner as the roof tile B is laid on the roof base part C.
Since the solar cell holding tile A is incorporated in the solar cell unit, the beauty inherent in the roof is not impaired by the solar cell unit D.

In the above-described embodiment, the case of single character roofing has been described. However, the shape of the solar cell holding tile A may be changed according to other various roofing methods. In addition, the solar cell holding tile A can also be attached to the outer wall surface of the curtain wall.

As shown by the two-dot chain lines in FIGS. 1, 2, 3, 8, and 10, a waterproof sheet is provided on the upper surface of the ridge side frame member 1D of the cell holding frame 1 of the solar cell holding tile A. Stick 5
When the upper and lower photovoltaic cell holding tiles A, A are overlapped, the waterproof sheet 4 of the water return 12C of the eave side horizontal frame member 1C of the upper photovoltaic cell holding tile A, and the lower photovoltaic cell holding tile If the waterproof sheet 5 of the ridge side horizontal frame member 1D of A is brought into close contact, the waterproof function of the joint of the solar cell holding tile A can be further enhanced.

Waterproof sheet 5 and joining waterproof sheet 5A
Is made of a waterproof material such as a soft synthetic resin or a soft rubber having durability, abrasion resistance, water resistance, and light resistance, similarly to the waterproof sheet 4, and has a thin thickness. . When attaching the waterproof sheets 5 and 5A, an adhesive layer may be formed on one surface side of the waterproof sheets 5 and 5A in advance, and the waterproof sheets 5 and 5A may be attached with the adhesive layer. An adhesive may be applied to and adhered to the waterproof sheets 5, 5A at the construction site. The waterproof sheet 5 may be formed by applying a waterproof material such as a soft synthetic resin or a soft rubber to the upper surface of the ridge-side horizontal frame member 1D.

[0031]

As described above, according to the solar cell holding tile according to the first aspect, the retaining piece of the cell holding frame 1 is hooked on the tile rail, so that the solar cell holding is performed using the tile rail. Since the tile can be positioned, the screwing operation later can be facilitated, and the installation efficiency of the solar cell unit can be improved.

According to the solar battery cell holding tile of the second aspect,
When the upper solar cell holding tile and the lower solar cell holding tile are joined, a waterproof sheet can be interposed at the joint, and the waterproof function of the joint can be improved. In addition, since the solar cell holding tiles can be prevented from directly contacting each other, it is possible to prevent the waterproof function from being deteriorated due to the wear of the solar cell holding tiles.

According to the solar cell holding tile of the third aspect,
By laying a single solar cell holding tile, roofing work for a plurality of roof tiles can be performed, and the efficiency of the solar cell unit installation work can be further improved. The vertical dimension of the roof tile is the same as the vertical dimension of the roof tile, so the horizontal line of the roof is not interrupted by the solar cell holding tile, it is possible to bring out a sense of unity with the roof tile, and the roof type is also Various roof types are not limited to gables.

According to the joint structure of the solar cell holding tile according to the fourth aspect, at the joint between the solar cell holding tile and the roof tile, at least a double waterproof structure is provided by the drainage plate of the waterproof joint and the elastic waterproof material. And the joint between the solar cell holding tile and the roof tile does not constitute a weak point in waterproofing.

According to the joint structure of the solar cell holding tile according to the fifth aspect, the waterproof function of the joint portion between the upper and lower tiles can be improved, and a decrease in the waterproof function due to wear of the tile can be prevented. .

According to the joint structure of the photovoltaic cell holding tiles of the sixth aspect, the waterproof sheets come into contact with each other at the joining portions of the lower and upper photovoltaic cell holding tiles. The joining portion can be brought into close contact, and the waterproof function can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a solar cell holding tile according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line XX of FIG.

FIG. 3 is an enlarged sectional view taken along line YY of FIG. 3;

FIG. 4 is a perspective view of a waterproof tether used in the joint structure of the solar cell holding tile according to the embodiment of the present invention.

FIG. 5 is a perspective view showing a construction process of the solar cell unit.

FIG. 6 is a perspective view showing a construction process of the solar cell unit.

FIG. 7 is a perspective view showing a construction process of the solar cell unit.

FIG. 8 is a perspective view showing a joint portion between solar battery cell holding tiles.

FIG. 9 is a perspective view showing a roof on which a solar cell unit is installed.

FIG. 10 is a longitudinal sectional view of a roof on which a solar cell unit is installed.

FIG. 11 is a cross-sectional view of a roof on which a solar cell unit is installed.

[Explanation of symbols]

 Reference Signs List A solar cell holding tile 1 cell holding frame 1A vertical frame material 11A vertical frame material main body 12A underlap piece 13A rising portion 14A reinforcing rib 15A screw insertion hole 1B vertical frame material 11B vertical frame material main body 12B overlap piece 13B overlap Hanging portion of one piece 14B Screw insertion hole 1C Eave-side horizontal frame material 11C Eave-side horizontal frame material main body 12C Water return 13C Hidden piece 1D Building-side horizontal frame material 11D Building-side horizontal frame material main body 12D Drainer 13D Hanging piece 2 Solar cell Cell 3 Fixing groove 4 Waterproof sheet 5 Waterproof sheet 6 Screw 7 Waterproof joint 7A Drain plate 7C Elastic waterproof material 10 Caulking material B Roof tile C Roof base D Solar cell unit E Tile rail

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI E04D 13/18 E04D 13/18 H01L 31/042 H01L 31/04 R (72) Inventor Shoji Sakaiya Keihanhondori, Moriguchi-shi, Osaka 2-5-5 Sanyo Electric Co., Ltd. (72) Inventor: Shinyuki Tsujino 2-5-5 Keihan Hondori, Moriguchi, Osaka Prefecture Sanyo Electric Co., Ltd. (72) Inventor: Masao Ikushima Moriguchi, Osaka 2-5-5 Keihanhondori Sanyo Electric Co., Ltd. (72) Inventor Takayoshi Yasuda 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (6)

[Claims] 1. A solar cell holding tile in which a solar cell is mounted on a cell holding frame, wherein a retaining piece for hooking on a roof tile is projected downward from a ridge side frame material of the cell holding frame. Characteristic solar cell holding tile. 2. The solar cell holding device according to claim 1, wherein a waterproof sheet for preventing abrasion due to contact between the tiles is provided on a lower surface portion of the eave-side horizontal frame member of the cell holding frame. tile. 3. The external dimensions of the cell holding frame are set to be the same as the external dimensions of a plurality of roof tiles arranged in a row on the roof base. Or the solar cell holding tile according to claim 2. 4. A waterproof joint comprising an elastic waterproofing material attached to an upper surface of a draining plate is provided below a joint between a side end of a solar cell holding tile and a side end of a roof tile. A joint structure for a solar battery cell holding tile, wherein a side end of a battery cell holding tile and a side end of a roof tile are elastically contacted with an elastic waterproof material of a waterproof connecting member. 5. A waterproof sheet is attached to the lower surface of the tip of the eaves of the solar cell holding tile, and the waterproof sheet of the eaves of the upper solar cell holding tile is stacked on the ridge side of the lower solar cell holding tile. A joint structure for solar cell holding tiles, wherein solar cell holding tiles are joined to each other. 6. A waterproof sheet is attached to the lower surface side of the eave tip and the upper surface side of the ridge side end of the solar cell holding tile, respectively.
A solar cell holder characterized in that the waterproof sheet on the eaves side of the upper solar cell holding tile is overlapped on the waterproof sheet on the ridge side of the lower solar cell holding tile and the solar cell holding tiles are joined together. Roof joint structure.