JP2000204733A - Roof integrated solar battery array - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the manufacture of constituent members and the execution of a solar battery array, improve the waterproofness of rainwater and a drain function, and further suppress the temperature increase of a solar battery module. SOLUTION: A roof integrated solar battery array SA set on a trapezoidal roof face 4a (or a triangular roof face) is composed of a vertical gutter 1 fixed and set on a roof face at an interval of the substantially lateral size of a solar battery module SM in long length in the vertical direction of the roof face, a vertical frame 2 provided and fixed on the vertical gutter 1 comprising a left side end fixing frame and a right side end fixing frame on a member fixing the right and left side ends of the solar battery module, a long lateral frame 3 in the lateral direction of a roof comprising an upper end fixing frame and a lower end fixing frame on the member fixing the upper and lower ends of the solar battery module, a waterproof mechanism performing waterproofness between the solar battery array SA and tiles comprising a lower end waterproof mechanism 5, an upper end waterproof mechanism 6, a right side end waterproof mechanism 7 and a left side end waterproof mechanism 8, and a ventilation mechanism 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables a solar cell array to be constructed in the same manner as a tiled work, and has a waterproof function inside and around the solar cell array and a ventilation function for preventing a rise in the temperature of the solar cell module. To a roof-integrated solar cell array.

[0002]

2. Description of the Related Art In order to improve the problem that no consideration is given to waterproofing between each frame and each solar cell module constituting a gantry of a solar cell array using a conventional gantry and between the gantry itself, a gantry is constructed. A roof-integrated solar cell array with improved waterproofing between each frame and between each frame and the solar cell module in contact with them has also been developed.However, the structure of a fixing member for supporting and fixing each solar cell module constituting the array has been developed. Because of its complexity and number,
There was a problem that the manufacture and the construction of the array became complicated. Further, there have been few cases in which a decrease in power generation efficiency due to a rise in the temperature of the solar cell module has been positively improved by a simple configuration.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a solar cell module comprising a solar cell array having an upper end, a lower end, and a right side. The structure of the vertical and horizontal frames for supporting and fixing the end and the left end is relatively simplified, and the manufacture of the structural members and the construction of the solar cell array are simplified, and the upper end of the solar cell module constituting the solar cell array, Waterproofing and drainage of rainwater leaking from gaps in vertical and horizontal frames supporting and fixing the lower end, right end and left end, and gaps between the upper end, lower end, right end and left end of each solar cell module and around the solar cell array Improves the waterproofness of
Another object of the present invention is to prevent a decrease in power generation efficiency due to a rise in the temperature of the solar cell module.

[0004]

A roof-integrated solar cell array according to the present invention is a solar cell array installed on a roof having a trapezoidal or triangular planar shape, and includes a plurality of planar rectangular solar cell modules. A trapezoidal solar cell array in which a planar trapezoidal solar cell module is supported and fixed by supporting and fixing means; a waterproofing means for waterproofing an area around each of the solar cell arrays and a tiled portion of a roof surface; Ventilation means for cooling the battery array from its back surface.

The roof-integrated solar cell array according to the present invention is a solar cell array installed on a roof having a rectangular or square planar shape. A plurality of square-shaped solar cell modules are supported and fixed by supporting and fixing means. Rectangular or square solar cell array, waterproofing means for waterproofing each area of the solar cell array and an area adjacent to a tiled portion of a roof surface, and ventilation ventilation for cooling the solar cell array from the back surface Means.

The roof-integrated solar cell array according to the present invention is characterized in that the supporting and fixing means are elongated in the longitudinal direction of the roof surface and are fixed and installed at predetermined intervals in the longitudinal direction; A plurality of vertical frames elongated in the longitudinal direction of the roof surface for supporting and fixing the left end and the right end and the left end or the right end of the plurality of photovoltaic modules; The solar cell module is composed of a plurality of horizontal frames which are long in the horizontal direction and are provided at predetermined intervals in the direction, and which support and fix the upper and lower ends of the individual solar cell modules and the upper or lower ends.

In the roof-integrated solar cell array according to the present invention, the downspout is fixed in the vertical direction on the roof surface, and a vertical frame is fixedly mounted on the upper surface thereof. It has the function of a rain gutter that receives rainwater leaking from the gap between the lower end and each solar cell module fixing frame that supports and fixes them, and flows down the roof surface, and connects the vertical frame and the joint between the vertical frame and the horizontal frame. It has a cover for covering and fixing from above.

In the roof-integrated solar cell array according to the present invention, the vertical frame includes a right-end fixed frame and a left-end fixed frame, each of which has a cross-sectional shape symmetrical and is long in the vertical direction of the roof surface. The frame has a function of a rain gutter for supporting and fixing the right end of one or more solar cell modules and for flowing rainwater leaking from a gap between the right end fixed frame and the right end of the solar cell module to the downspout. The left-end fixed frame supports and fixes the left end of one or more solar cell modules, and receives rainwater leaking from a gap between the left-end fixed frame and the left end of the solar cell module to flow down the downspout. It has a gutter function.

[0009] In the roof-integrated solar cell array according to the present invention, each of the horizontal frames includes an upper fixed frame and a lower fixed frame that are elongated in the lateral direction of the roof surface. It has a function of a rain gutter that supports and fixes and receives rainwater leaking from a gap between the upper end fixed frame and the upper end of the solar cell module and a gap between the upper end fixed frame and the lower end fixed frame and flows down the downspout. The fixed frame has a function of supporting and fixing the lower end of each solar cell module, and has a function of a rain gutter that receives rain water leaking from a gap between the lower end fixed frame and the lower end of the solar cell module and flows the rain water to the downspout.

In the roof-integrated solar cell array according to the present invention, the waterproof means includes an upper end waterproof mechanism for waterproofing the vicinity of the upper end of the solar cell array, and a lower end waterproof mechanism for waterproofing the vicinity of the lower end of the solar cell array. A right end waterproof mechanism for waterproofing the vicinity of the right end of the solar cell array, and a left end waterproof mechanism for waterproofing the vicinity of the left end of the solar cell array. The structure up to the roofing part and the part of the right side waterproofing mechanism and the left side waterproofing mechanism are covered with a waterproof plate, and the lower end waterproofing mechanism extends from the tiled part at the lower end of the roof surface to above the lower end of the solar cell array. The area where rainwater may blow up is covered with a waterproof plate.The right end waterproof mechanism covers the area from the right end fixed frame to the tiled part on the right side of the roof surface and part of the lower end waterproof mechanism. In the structure of covering the left end waterproof mechanism is a structure that covers a part of the area and the lower portion the waterproof mechanism from the left end fixing frame to tiled portion of the top surface left end waterproof plate.

In the roof-integrated solar cell array according to the present invention, the waterproof plate used for the upper end waterproofing mechanism of the waterproofing means covers the upper end fixed frame near the lower end thereof and has the lower end directed toward the surface of the solar cell module. Bending, the upper end portion is bent downward in the roof surface in a substantially U-shaped cross section, and the bent upper surface is elastically contacted with the back surface of the lowermost row of tiles at the upper end portion of the roof surface, The lower end waterproofing mechanism of the waterproofing means is provided with a waterproof plate, the lower end of which is installed so as to cover the uppermost row of tiles at the lower end of the roof surface, and the back surface thereof is adhered to the tile surface and the upper end of the waterproof plate. Slightly below the part, a rainwater blocking member that is long in the lateral direction of the roof surface and has a cross-sectional shape of “L” to prevent rainwater from entering is installed, and a waterproof plate used for a right-end waterproofing mechanism of the waterproofing means is provided. Right end fixed frame and downspout near the left end Cover and bend the right end of the roof surface to the left in the shape of a "U" in cross section, and make the folded upper surface elastically contact the back surface of the roof tile (the leftmost row) at the right end of the roof surface. The waterproof plate used for the left end waterproofing mechanism of the waterproofing means covers the left end fixed frame and the vertical gutter near the right end thereof, and folds the left end of the waterproof end rightward on the roof surface into a substantially "U" shape. The roof is bent, and the bent upper surface is brought into elastic contact with the back surface of the roof tile (the rightmost row) at the left end of the roof surface.

In the roof-integrated solar cell array according to the present invention, the ventilating means includes a first ventilation path formed by a space between a back surface of the solar cell module between the downspouts and an upper surface of the roof surface, and the first ventilation path. By using a second ventilation path formed by a space between the ventilation frame and the second ventilation frame, the air on the back surface of the solar cell module is ventilated and ventilated upward from below the roof surface.

[0013] In the roof-integrated solar cell array according to the present invention, the first ventilation frame has rainwater intrusion preventing means for preventing rainwater from entering into the second ventilation path. It has the function of a rain gutter that receives rainwater that has intruded into the second ventilation path that cannot be blocked by the rainwater intrusion prevention means of the first ventilation frame and that flows out of the solar cell array, and has entered the second ventilation path. It has rainwater intrusion prevention means for preventing rainwater from intruding into the first ventilation path.

[0014] In the roof-integrated solar cell array according to the present invention, the ventilation / ventilating means is provided with a ventilation fan in the first ventilation path or the second ventilation path.

In the roof-integrated solar cell array of the present invention, the ventilation fan is driven by power generated by a solar cell array or a separately provided solar cell.

[0016]

Embodiments of the present invention will be described below. Roof integrated solar cell array SA of the present invention
Means that the solar cell array SA itself serves as a roof tile,
The solar cell array S
By reducing the number of components of the constituent members constituting A and simplifying their structure, the production of the constituent members and the construction of the solar cell array SA are simplified, and the inside and surroundings of the solar cell array SA are reduced. It has a ventilation mechanism for improving the waterproof function and preventing the temperature of the solar cell module itself from rising.

The roof-integrated solar cell array SA of the present invention has a trapezoidal roof surface (hereinafter referred to as a trapezoidal roof surface) and a triangular roof surface (hereinafter referred to as a triangular roof surface). And a flat rectangular solar cell module (hereinafter referred to as a rectangular solar cell module) SMa and a planar trapezoidal solar cell module (hereinafter referred to as a trapezoidal solar cell module) SMb. By arranging a plurality of pieces vertically and horizontally, installation on the trapezoidal roof surface 4a or the triangular roof surface 4b becomes possible. By installing the roof-integrated solar cell array SA, it is not necessary to tile at least the roof surface on the lower surface of the solar cell array SA, and the work of roofing the roof surface is reduced.

The roof-integrated solar cell array SA of the present invention
Is installed on the trapezoidal roof surface 4a or the triangular roof surface 4b, and is vertically elongated in the longitudinal direction of the roof surface and fixed and installed on the roof surface at an interval of substantially the horizontal dimension of the solar cell module.
And a vertical frame 2 comprising a left end fixed frame 22 and a right end fixed frame 21 as members for fixing the left and right side ends of the solar cell module, and an upper end fixed frame 32 and a lower end formed as members for fixing the upper and lower ends of the solar cell module A solar cell array including a horizontal frame 3 including a fixed frame 31, a roof lower end waterproofing mechanism 5, a roof upper end waterproofing mechanism 6, a roof upper right end waterproofing mechanism 7, and a roof upper left end waterproofing mechanism 8. A waterproof mechanism for waterproofing between the SA and the tile, and a ventilation mechanism 9
It is composed of

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A roof-integrated solar cell array SA of the present invention comprises:
The flat shape shown in FIG. 3 is suitable for a roof having a trapezoidal roof surface (hereinafter referred to as a trapezoidal roof surface) and a roof shape having a triangular roof surface (hereinafter referred to as a triangular roof surface). , A planar rectangular solar cell module shown in FIG. 4 (hereinafter, referred to as a rectangular solar cell module).
By arranging a plurality of SMa and a plurality of planar trapezoidal solar cell modules (hereinafter referred to as trapezoidal solar cell modules) SMb shown in FIG. 5 vertically and horizontally, a trapezoidal roof surface 4a shown in FIG. 1 or a triangular roof surface shown in FIG. 4b. By installing the roof-integrated solar cell array SA, it is not necessary to tile at least the roof surface on the lower surface of the solar cell array SA, and the work of roofing the roof surface is reduced.

Although not shown as an embodiment, in the case of a roof surface having a quadrangular (square or rectangular) planar shape,
A planar quadrangular (square or rectangular) solar cell array can be formed by arranging only the number of planar solar cell modules SMa in the vertical and horizontal directions according to the vertical and horizontal dimensions of the roof surface.

The schematic configuration of the roof-integrated solar cell array SA of the present invention will be described below. The roof-integrated solar cell array SA of the present invention is installed on the trapezoidal roof surface 4a or the triangular roof surface 4b as shown in FIGS. 1 and 2, and includes a downspout 1, a vertical frame (right and left side ends of the module). 2, a horizontal frame (a member for fixing the upper and lower ends of the module) 3, a roof lower end waterproofing mechanism 5, a roof upper end waterproofing mechanism 6, a roof upper right end waterproofing mechanism 7, and a roof upper left end. It comprises a waterproofing mechanism 8 and a ventilation mechanism 9.

As shown in FIGS. 1 and 2, the vertical frame 2 is composed of a plurality of rectangular solar cell modules SMa and a pair of trapezoidal solar cell modules SMb installed on the trapezoidal roof surface 4a or the triangular roof surface 4b. And a member for supporting and fixing the left and right side ends of the plurality of modules, the shape of which is long, and which is installed vertically on the roof surface and directly on the roof surface and is long in the vertical direction of the roof surface. They are installed at regular intervals (substantially the horizontal dimensions of the module) along the top.

In a solar cell array having a triangular planar shape and a trapezoidal trapezoidal shape, the left and right ends are left or right in a solar cell array having an irregular trapezoidal planar shape (for example, when one leg is vertical). The side ends are each installed obliquely to the roof surface, and this is also defined as the vertical frame 2.

As shown in FIGS. 1 and 2, the horizontal frame 3 has upper and lower ends of a plurality of rectangular solar cell modules SMa and trapezoidal solar cell modules SMb installed on the trapezoidal or triangular roof surface. Is a member that is long in the lateral direction of the roof surface and is installed at regular intervals (substantially the vertical dimension of the module) in the lateral direction of the roof surface.

As shown in FIGS. 1 and 2, the roof waterproofing mechanism includes a roof lower end waterproofing mechanism 5, a roof upper end waterproofing mechanism 6, a roof right end waterproofing mechanism 7, and a roof left end waterproofing. Each of the mechanisms 8 has a function of waterproofing a portion of the solar cell module group installed on the roof surface 4 where the tiles around the lower end, the upper end, and the left and right end portions are not covered with tiles.

The ventilation mechanism 9 is a mechanism for preventing a decrease in power generation efficiency due to a rise in the temperature of the solar cell module, providing a gap between the lower surface of the solar cell module and the roof surface, and connecting the upper end of the uppermost solar cell module. The horizontal frame 3 to be supported and fixed, in particular, as shown in FIG. 12, by providing the ventilation mechanism 9 in or near the SM upper fixed frame 32, the lower end of the solar cell module is used to make the upper end of the solar cell module using the gap. To prevent the temperature of the solar cell module from rising due to solar heat or the like.

The details of each member constituting the solar cell array SA will be described below. As shown in FIG. 7, the downspout 1 fixes itself to the roof surface, fixes the SM left end fixed frame 22 and the SM right end fixed frame 21, and connects the SM left end fixed frame 22 and the SM right end fixed frame 21 to the sun. It has a function of a rain gutter for collecting and leaking water leaked from a gap between the battery module and the fixing unit 11 and the first rain gutter 1
2. A frame composed of a second gutter section 13 and a vertical frame cover 14, which is elongated in the vertical direction of the roof surface, has a substantially "U" -shaped cross section, opens upward, and has a center at the bottom of the opening. A substantially trapezoidal fixing portion 11 is provided on the fixing portion 11, a second rain gutter portion 13 is provided on the SM left end fixing frame 22 side of the fixing portion 11, and a first rain gutter portion 12 is provided on the SM right end fixing frame 21 side of the fixing portion 11. It is formed.

The fixing part 11 has a trapezoidal cross section whose upper surface fixes the SM left end fixing frame 22 and the SM right end fixing frame 21, and the slope corresponding to the two oblique sides of the trapezoid is the downspout 1 itself. The parts to be fixed to the roof surface 4 are fixed by fixing means such as nails and screws, respectively.
The water leaked from the gap between the SM left end engaging portion 22a and the left end of the solar cell module flows downward, and the first
2 is an SM right end engaging portion 21a of the SM right end fixed frame 21
The water leaking from the gap between the solar cell module and the left end of the solar cell module is caused to flow downward, and the side walls of the first rain gutter section 12 and the second rain gutter section 13 are bent inward (toward the fixed section 11) at their upper ends, respectively. It has bends 12a and 13a, and the horizontal frame 3 (SM upper end fixed frame 32) is placed on the bends 12a and 13a.
Alternatively, the bottom surface of the SM bottom fixed frame 31) or the solar cell module SM is installed.

As shown in FIGS. 6, 7 and 9, the vertical frame cover 14 covers the SM left end fixing frame 22 and the SM right end fixing frame 21 fixed to the fixing portion 11 so as to cover them with rainwater or the like. The vertical frame cover 14 is fixed to the fixing portion 11 by fixing means such as nails or screws.

The vertical frame 2 is a member for fixing the left or right end of the solar cell module as shown in FIG.
Right end fixed frame 21 and SM left end fixed frame 2
2

In the solar cell array having a triangular planar shape and a trapezoidal trapezoidal shape, the left and right ends are set to the left or right ends in a solar cell array having an unequal leg trapezoidal shape (for example, when one leg is vertical). Is installed obliquely to the roof surface, and this is also defined as a vertical frame 2.

The SM right end fixing frame 21 is a member for fixing the right end of the solar cell module. The SM right end fixing frame 21 is a long frame having a substantially "L" -shaped cross section when viewed from below the roof surface. The SM right end engaging portion 21a has two tongues formed substantially horizontally to the left of the upper end of the vertical wall of the SM right end fixed frame 21,
These tongues support and fix the right end of the solar cell module. The downspout joint 21b is the bottom side of the SM right end fixing frame 21 and is joined to the upper surface of the fixing section 11 of the downspout 1 by screws. Or, it is fixed to the downspout 1 by fixing means such as a nail N.

The SM left end fixing frame 22 is a member for fixing the left end of the solar cell module. The SM left end fixing frame 22 is a long frame having a substantially inverted "L" cross section when viewed from below the roof surface. 22a and downspout joints 22b, SM
The left end engaging portion 22a has two tongues formed substantially horizontally to the right of the upper end of the vertical wall of the SM left end fixing frame 22, and supports and fixes the left end of the solar cell module with these tongues. The downspout joint 22b is the bottom side of the SM left end fixed frame 22, and the downspout 1 fixed section 1
1 and is fixed to the downspout 1 by fixing means such as screws or nails N.

Since the SM right end fixing frame 21 and the SM left end fixing frame 22 have symmetrical cross-sectional shapes and dimensions, they can be inverted upside down if they have the same length. Any can be used.

As shown in FIG. 8, the horizontal frame 3 includes an SM lower end fixing frame 31 for supporting and fixing the lower end of the solar cell module and an SM upper end fixing frame 32 for supporting and fixing the upper end of the solar cell module.

The SM lower end fixed frame 31 is a long frame having a substantially "L" -shaped cross section when viewed from the right side. The SM lower end engaging portion 31a, the rain gutter portion 31b, the SM upper end fixed frame joining portion 31c, and the SM lower end fixing frame 31c. It is composed of an upper end fixed frame engaging portion 31d and a snow stopper 31e, and a screw hole n for fixing to the SM right end fixed frame 21 or the SM left end fixed frame 22 is provided at both long end portions of the high side wall. Have been.

The SM lower end engaging portion 31a has two tongues formed substantially horizontally in the direction of the high side of the roof at the upper end of the high side wall, and these tongues support and fix the lower end of the solar cell module SM. And the rain gutter portion 31b is the "L"
It has a function of a rain gutter which is formed in a U-shaped groove and flows water leaking from a gap between the SM lower end engaging portion 31a and the lower end of the solar cell module SM.
“c” extends in an eaves-like shape in a direction opposite to the SM lower end engaging portion 31a at the upper end of the high side wall and is joined to the upper surface of the SM lower end fixing frame joining portion 32d of the SM upper end fixing frame 32. , SM upper end fixed frame engaging portion 31
d is provided at an intermediate position of the high side wall, extends in the direction opposite to the SM lower end engaging portion 31a, and is formed of a bent piece downward, and is formed with the SM lower end fixing frame engaging portion 32e of the SM upper end fixing frame 32. The engagement causes the SM lower end fixed frame 31 and the SM upper end fixed frame 32 to be engaged with each other, and the snow stopper 31e is located above the lower end of the roof surface of the SM upper end fixed frame joint 31c. It has a function of snow stopper by providing a bent piece to be bent.

The SM upper end fixed frame 32 is a long frame having an inverted "L" shape and an "L" shape in cross section as viewed from the right side, and having a substantially "mountain" shape in a back-to-back state. The joining part 32a, the first gutter part 32b, the second gutter part 32c, and the SM
And a lower end fixed frame joining portion 32d.
A screw hole n for fixing to the 1 or SM left end fixing frame 22 is provided.

The SM upper end engaging portion 32a has two tongues formed substantially horizontally in the direction of the lower side of the roof at the upper end of the high side wall, and these tongues support and fix the upper end of the solar cell module SM. The first rain gutter portion 32b is formed in the inverted "L" -shaped groove, and functions as a rain gutter for flowing water leaking from a gap between the SM upper end engaging portion 32a and the upper end of the solar cell module SM. The second rain gutter portion 32c is formed in the “L” -shaped groove portion, and the SM lower end fixed frame 3
1 and a function of a rain gutter for flowing water leaked from a gap between the SM upper fixed frame 32 (the SM upper fixed frame connecting portion 31c and the SM lower fixed frame connecting portion 32d).
The lower end fixed frame joining portion 32d has an eave in a direction opposite to the SM upper end engaging portion 32a at the upper end of the high side wall.
And is connected to the lower surface of the SM upper end fixed frame joining portion 31c of the SM lower end fixed frame 31.
The lower end fixed frame engaging portion 32e is connected to the second rain gutter portion 32c.
The lower end fixed frame 31 has a lower side wall, and the lower end fixed frame 31 engages with the SM upper end fixed frame engaging portion 31d of the SM lower end fixed frame 31 so that the SM upper end fixed frame 32 and the SM lower end fixed frame 31 are engaged. It is a match.

The joint between the vertical frame 2 and the horizontal frame 3, particularly the joint between the SM right end fixed frame 21 and the SM left end fixed frame 22, and the SM lower end fixed frame 31, will be described with reference to FIG.

FIG. 9 is a view when viewed from below the roof surface, and shows the SM right end fixed frame 2 fixed on the downspout 1.
The solar cell modules SM1 and SM2 are supported and fixed to the left and right end fixing frames 22 of the SM 1 and SM, respectively.
It is supported and fixed by the lower end fixing frame 31. Since the bottom surface of the SM lower end fixed frame 31 is installed on the upper surface of the bent portion 12a of the first rain gutter portion 11 of the vertical gutter 1 and the bent portion 13a of the second rain gutter portion 12 of the vertical gutter 1, A space having a height H between the roof surface and the bottom surface of the SM lower end fixed frame 31 or the bottom surface of the solar cell module SM is provided between the gutter 1 and another vertical gutter 1 installed at a predetermined distance from the gutter 1 (see FIG. A gap is generated, and this space is used for ventilation. Also, SM
Rainwater and the like leaked from the gap between the right end fixed frame 21 and the right end of the solar cell module SM1 and the gap between the SM left end fixed frame 22 and the left end of the solar cell module SM1 flow in the direction of the arrow, and each of the downpipe 1 Rain water and the like flowing down to the first rain gutter portion 11 and the second rain gutter portion 12 and simultaneously flowing on the inner bottom surface of the SM lower end fixed frame 31 flow in the direction of the arrow, and the first rain gutter portion 12 and the second rain gutter portion of the down gutter 1 respectively. It flows down into the rain gutter section 13.

The SM right end fixed frame 21 and S
M left end fixed frame 22 and SM upper end fixed frame 32
Since the connection portion with is similar in configuration, the description is omitted.

As shown in FIG. 1, FIG. 2 and FIG. 10 (views from the right side of the roof), the waterproof mechanism 5 at the lower end of the roof is provided between the lower end of the solar cell array SA and the lower end of the roof 4. A waterproof plate 51 made of a corrosion-resistant metal plate, for example, a fluorine steel plate, is installed at the lower end of the roof surface 4. The vertical dimension of the waterproof plate 51 is a dimension from the tile 41 such as a color vest laid on the lower end of the roof surface 4 to the lower end of the solar cell array SA from the lower end of the solar cell array SA to a certain width (a distance that can withstand when rain blows up). The lateral dimension is desirably substantially the same as or slightly larger than the lateral dimension of the lower end of the solar cell array SA. The lower surface of the lower end of the waterproof plate 51 is fixed to the upper surface of the roof tile 41 by a waterproof tape 52. Then, screws or nails N are attached to the roof surface 4 at predetermined intervals at the intermediate portion and the upper end portion of the waterproof plate 51.
At the same time, a rain stop angle 53 having an L-shaped cross section that is long in the lateral direction of the roof surface and that prevents rainwater when rain blows up to a position slightly lower than the upper end is installed.
When installing this angle 53, it is fixed to the roof surface 4 with screws or nails or the like via a waterproof tape 53a on the bottom surface.

The waterproofing mechanism 7 at the right end of the roof surface is shown in FIGS.
And as shown in FIG. 11 (a diagram viewed from below the roof surface),
This is a mechanism for waterproofing between the right end of the solar cell array SA and the right end of the roof surface 4. The waterproof plate 71 is a main constituent member. The waterproof plate 71 is a waterproof plate left end fixed frame cover (near the left end) 71a. It consists of a waterproof plate downspout cover portion 71b and a waterproof plate base plate contact portion 71c (contacts with the back surface of the tile), covers the SM right end fixed frame 21 and the downspout 1 from above, and has a roof tile in a region where the roof tile 41 is covered. A waterproof plate 71 made of a corrosion-resistant metal plate, for example, a fluorine steel plate or the like is provided between the base plate 41 and the base plate 42 for waterproofing near the right end of the solar cell array SA. Installed in the department. It is desirable that the vertical dimension of the waterproof plate 71 is substantially the same as or slightly larger than the vertical dimension of the right end of the solar cell array SA, and the horizontal dimension is a certain width (rain) from the right end of the solar cell array SA. (A distance that can prevent the intrusion of the particles). The waterproof plate right end fixed frame cover portion 71a (near the left end) 71a has a structure that covers the SM right end fixed frame 21, and its left end is bent 180 degrees inward to prevent water droplets from entering the inside. It has a structure. The waterproof plate vertical gutter cover portion 71b is configured to cover the vertical gutter 1 from above, and substantially horizontally from a position lower than the waterproof plate right end fixed frame cover portion 71a (the bottom surface of the right end fixed frame 21) to the right end of the vertical gutter 1. And the area up to the right end of the downspout. The waterproof board base plate contact portion 71c has a constant width substantially horizontally from a position lower than the waterproof board downspout cover section 71b (the bottom surface of the downspout 1), and is installed between the tile 41 and the base board 42. A plurality of belt-like projections 71d extending in the vertical direction of the roof surface with a semicircular cross-sectional shape are provided at an intermediate portion thereof to prevent intrusion of rainwater and the like, and to have a bent structure in which the right end is bent inward. Thereby, the right end is elastically joined to the bottom surface of the tile 41 and has a structure for preventing intrusion of rainwater and the like. Then, the waterproof plate 71 is provided with screws or nails N at its waterproof plate downspout cover 71b.
It is fixed to the downspout 1 by the above method. The belt-like projection 71
As a means for preventing rainwater intrusion instead of d, the waterproof plate 71
The vertical surface of the roof plate 1
There is also a method of attaching a book or a plurality of waterproof tapes.

The waterproofing mechanism 8 (not shown) at the left end of the roof surface.
Is a mechanism for waterproofing between the left end of the solar cell array SA and the left end of the roof surface 4. The waterproof plate is a main component, and this waterproof plate is a waterproof plate right end fixed frame cover (left end).
And a waterproof plate vertical gutter cover portion and a waterproof plate ground plate contact portion (contact with the back surface of the roof) are the same as those of the waterproofing mechanism 7 at the right end of the roof surface. The description of the waterproofing mechanism 8 at the left end of the roof surface is omitted because it is only in the relation of the object.

As shown in FIGS. 1, 2 and 12 (views from the right side of the roof surface), the waterproof mechanism 6 at the upper end of the roof surface is provided between the upper end of the solar cell array SA and the upper end of the roof surface 4. A waterproof plate 61 made of a corrosion-resistant metal plate, for example, a fluorine steel plate, is installed on the upper end of the roof surface 4. The vertical dimension of the waterproof plate 61 is a dimension from the upper end of the solar cell array SA to the tile 41 such as a color vest laid on the upper end of the roof surface 4, and the horizontal dimension is slightly larger than the horizontal dimension of the upper end of the solar cell array SA. The right end waterproof plate 71 is partially covered with a large size. The upper surface of the upper end portion 61a of the waterproof plate 61 is fixed to the lower surface of the roof tile 41 by a waterproof tape 62 or the like. And
The lower end portion 61b of the waterproof plate 61 includes the SM upper end fixed frame 32 provided at the upper end of the solar cell array SA and the ventilation mechanism 9 (first ventilation frame 91, second ventilation frame 92, and ventilation fan 93) provided therewith. .), Especially the first
The top of the ventilation frame 91 has a bent portion extending downward. Then, the lower end 61b of the waterproof plate 61 is fixed to the second ventilation frame 92 of the ventilation mechanism 9 with screws or nails. Further, a water return 63 that is long in the lateral direction of the roof surface and has an inverted “L” -shaped cross section is installed on the base plate 42 of the roof surface 4 near the lower surface of the middle portion of the waterproof plate 61. This water return 63
Are for discharging rainwater leaking from the vicinity of the SM upper end fixing frame 32 provided at the upper end of the solar cell array SA and the ventilation mechanism 9 provided in conjunction with the SM to the outside from both side ends of the solar cell array SA. Further, as shown in FIG. 13 (exploded view) and FIG. 14 (assembly drawing), a waterproof plate blind plate 62 is used to close the left and right ends of the waterproof plate 61. Waterproof board 6
The waterproof plate 1 and the waterproof plate 62 and the waterproof plate 61 and the waterproof plate 71 of the right end waterproof mechanism 7 are fixed with screws or nails N or the like.

The ventilation mechanism 9 comprises a first ventilation frame 91, a second ventilation frame 92, and a ventilation fan 93, as shown in FIG. Frame 91 covers the upper surface of SM lower end fixed frame joining portion 32d of SM upper end fixed frame 32 provided at the upper end of solar cell array SA and the outer surface of the upper side wall of second rain gutter portion 32c of SM upper end fixed frame 32; Rain stop projections 91 that prevent rain water from entering from the top of the module
a, which has a rain gutter portion 91b for receiving rainwater which cannot be prevented by the rain stop projections 91a and discharging the water to the outside of the solar cell array. Also,
The second ventilation frame 92 has a structure that covers the SM upper end fixed frame 32 and the first ventilation frame 91, and has a ventilation path 94 for ventilation between the first ventilation frame 91 and when heavy rain occurs. A first rain-stop projection 92a and a second rain-stop projection 92b are provided to prevent rainwater from entering from the ventilation path. Further, the main wall 92c of the second ventilation frame 92
By installing a ventilation fan 93 as necessary, the ventilation function is further enhanced, and the power generation efficiency of the solar cell array SA is improved. As a power source for operating the ventilation fan 93, a solar cell array SA installed on the roof surface or a small solar cell or a solar cell module separately provided therefrom is used.

[0048]

According to the present invention, the members constituting the roof-integrated solar cell array, namely, a vertical gutter, a vertical frame comprising a right end fixed frame and a left end fixed frame, and a horizontal frame comprising an upper end fixed frame and a lower end fixed frame. Frame, waterproof mechanism (roof bottom waterproof mechanism, roof right edge waterproof mechanism,
By making the roof left end waterproofing mechanism and the roof upper end waterproofing mechanism) and the ventilation mechanism relatively simple structures, it is possible to simplify the manufacture of each member and the construction of the solar cell array.

Further, the upper end, lower end, right end and left end of each solar cell module constituting the solar cell array by the rain gutter function provided on the vertical gutter and the horizontal frame constituting the roof integrated solar cell array of the present invention. And the gaps between the vertical and horizontal frames that support and fix them, and the rainwater leaking in each vertical and horizontal frame can be drained out of the solar cell array.

Further, the waterproofing mechanism constituting the roof-integrated solar cell array of the present invention, namely, the waterproofing mechanism at the lower end of the roof surface, the waterproofing mechanism at the right end of the roofing surface, the waterproofing mechanism at the leftward end of the roofing surface, and the waterproofing at the upper end of the roofing surface. The mechanism can improve the waterproofness around the solar cell array.

Furthermore, the ventilation path and the ventilation mechanism constituting the roof-integrated solar cell array of the present invention improve the ventilation on the back surface of each solar cell module and suppress the temperature rise on the back surface of each solar cell module. A decrease in power generation efficiency due to a rise in the temperature of the solar cell array can be prevented.

[Brief description of the drawings]

FIG. 1 is a diagram (plan view) showing a roof-integrated solar cell array SA installed on a trapezoidal roof surface according to the present invention.

FIG. 2 is a diagram (plan view) showing a roof-integrated solar cell array SA installed on a triangular roof surface according to the present invention.

FIG. 3 shows a roof-integrated solar cell array SA installed on a roof having a trapezoidal roof surface and a triangular roof surface according to the present invention.
FIG.

FIG. 4 is a diagram showing a schematic structure of a rectangular solar cell module SMa that is a component of the roof-integrated solar cell array SA of the present invention.

FIG. 5 is a diagram showing a schematic structure of a trapezoidal solar cell module SMb which is a component of the roof-integrated solar cell array SA of the present invention.

FIG. 6 is a diagram (exploded view) showing a schematic structure of a roof-integrated solar cell array SA of the present invention.

FIG. 7 is a view showing the structure of the downspout 1 and the upright frame 2 as components of the roof-integrated solar cell array SA of the present invention (a view as viewed from below the roof surface).

FIG. 8 is a view showing the structure of a horizontal frame 3 which is a component of the roof-integrated solar cell array SA of the present invention (a view as seen from the right end of the roof surface).

FIG. 9 is a view showing a structure of a joining portion of the downspout 1, the vertical frame 2 and the horizontal frame 3 in the roof-integrated solar cell array SA of the present invention (as viewed from below the roof surface).

FIG. 10 is a diagram showing a schematic configuration of a roof-bottom-end waterproofing mechanism 5 in the roof-integrated solar cell array SA of the present invention (a diagram viewed from the right end of the roof surface).

FIG. 11 is a diagram (a diagram viewed from below the roof surface) showing a schematic configuration of a roof-side right end waterproofing mechanism 7 in the roof-integrated solar cell array SA of the present invention.

FIG. 12 is a diagram showing a schematic configuration of a roof-top upper-end waterproofing mechanism 6 in the roof-integrated solar cell array SA of the present invention (a diagram viewed from the right end of the roof surface).

FIG. 13 is a schematic configuration diagram (exploded view) of a roof-surface upper-end waterproofing mechanism 6 in the roof-integrated solar cell array SA of the present invention.
It is.

FIG. 14 is a schematic configuration diagram (assembly diagram) of a roof-surface upper-end waterproofing mechanism 6 in the roof-integrated solar cell array SA of the present invention.
It is.

[Explanation of symbols]

 SM solar cell module SMa square solar cell module SMb trapezoidal solar cell module SC solar cell 1 vertical gutter 11 fixing portion 12 first rain gutter portion 12a bent portion 13 second rain gutter portion 13a bent portion 14 vertical frame cover 2 vertical Frame 21 SM right end fixing frame 21a SM right end engaging portion 21b vertical gutter joint 22 SM left end fixing frame 22a SM left end engaging portion 22b vertical gutter joint 3 Horizontal frame 31 SM lower end fixing frame 31a SM lower end engaging Part 31b Rain gutter part 31c SM upper end fixed frame joint part 31d SM upper end fixed frame engagement part 31e Snow stopper 32 SM upper end fixed frame 32a SM upper end engagement part 32b First rain gutter part 32c Second rain gutter part 32d SM lower end Fixed frame joining part 32e SM lower end fixed frame engaging part 4 Roof surface 4a Form roof surface 4b Triangular roof surface 41 Roof tiles 42 Roof tile 43 Rafter 5 Roof surface lower end waterproofing mechanism (lower end waterproofing mechanism) 51 waterproof plate 52 waterproof tape 53 rainproof angle 53a waterproof tape 6 roof upper end waterproofing mechanism (upper end waterproofing) 61) Waterproofing board 61a Upper end of waterproofing board 61b Lower end of waterproofing board 62 Waterproofing board Mekura board 63 Water return 7 Roofing surface right end waterproofing mechanism (right end waterproofing mechanism) 71 Right end waterproofing board 71a Waterproofing board left end fixed frame cover 71b Waterproofing plate vertical gutter cover 71c Waterproofing plate ground contacting portion 71d Belt projection 8 Roof surface left end waterproofing mechanism (left end waterproofing mechanism) 81 Left end waterproofing plate 81a Waterproofing plate right end fixed frame cover 81b Waterproofing plate vertical gutter cover 81c Waterproof board ground contact section 9 Ventilation mechanism 91 First ventilation frame 91a Rain stop projection 91b Rain gutter section 92 Second Air frame 92a first Ametome protrusion 92b second Ametome protrusion 92c fan main wall 93 Ventilation 94 ventilation channel N screw n threaded holes

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H01L 31/042 H01L 31/04 R 31/04 Q (72) Inventor Masayuki Kakuda 2 Daiba, Minato-ku, Tokyo 3-3-2 Showa Solar Energy Co., Ltd. (72) Inventor Hiroshi Sugawara 2-3-2 Daiba, Minato-ku, Tokyo In-Showa Solar Energy Co., Ltd. (72) Inventor Mikihiko Omiyama Daiba, Minato-ku, Tokyo 2-3-2 Showa Solar Energy Co., Ltd. F-term (reference) 2E108 KK01 LL01 MM06 NN07 5F051 BA03 BA18 EA01 JA02 JA09

Claims (12)

[Claims] 1. A solar cell array installed on a roof having a trapezoidal or triangular planar shape, wherein a plurality of planar quadrangular solar cell modules and a planar trapezoidal solar cell module are supported and fixed by supporting and fixing means. Trapezoidal solar cell array, waterproof means for waterproofing the area around each of the solar cell array and the tiled portion of the roof surface, and ventilation ventilation means for cooling the solar cell array from its back surface. Roof integrated solar cell array. 2. A solar cell array installed on a roof having a rectangular or square planar shape, wherein a plurality of rectangular solar cell modules are supported and fixed by supporting and fixing means. A roof-integrated solar cell comprising: waterproof means for waterproofing each area of the solar cell array and an area adjacent to a tiled portion of a roof surface; and ventilation ventilation means for cooling the solar cell array from the back surface. array. 3. A plurality of downspouts which are elongate in the longitudinal direction of the roof surface and are fixed and installed at predetermined intervals in the direction, and the supporting and fixing means are provided along with the upper surface of the downspouts. A plurality of vertical frames that are long in the longitudinal direction of the roof surface that support and fix the left and right ends and the left or right ends of the plurality of solar cell modules; The roof-integrated solar cell array according to claim 1 or 2, comprising a plurality of horizontal frames which are installed at predetermined intervals and support and fix the upper and lower ends of the individual solar cell modules and the upper or lower ends. . 4. The downspout is fixed in a vertical direction on a roof surface, and a vertical frame is fixedly mounted on an upper surface thereof, and a left end and a right end, an upper end and a lower end of the solar cell module, and each sun supporting and fixing these. It has the function of a rain gutter that receives rainwater leaking from the gap between the battery module fixing frame and the downward flow of the roof surface, and has a cover that covers and fixes the vertical frame and the joint between the vertical frame and the horizontal frame from above. The roof-integrated solar cell array according to claim 1, 2 or 3. 5. The vertical frame is composed of a right end fixed frame and a left end fixed frame which are symmetrical in cross section and are long in the vertical direction of the roof surface, respectively, and the right end fixed frame is one or more solar cells. It has the function of a rain gutter that supports and fixes the right end of the module and that receives rainwater leaking from the gap between the right end fixed frame and the right end of the solar cell module and flows it to the downspout. Or a function of a rain gutter for supporting and fixing the left ends of the plurality of solar cell modules and for receiving rainwater leaking from a gap between the left end fixing frame and the left end of the solar cell module and flowing the rainwater to the downspout. 2
Or a roof-integrated solar cell array according to 3. 6. The horizontal frame comprises an upper fixed frame and a lower fixed frame which are elongated in the lateral direction of the roof surface, respectively. The upper fixed frame supports and fixes the upper end of each solar cell module, and the upper fixed frame and the solar cell. It has the function of a rain gutter that receives rainwater leaking from the gap between the upper end of the battery module and the gap between the upper fixed frame and the lower fixed frame and flows the vertical gutter, and the lower fixed frame has a lower end of each solar cell module. The roof-integrated solar cell array according to claim 1, wherein the solar cell array has a function of a rain gutter for supporting and fixing the solar cell module and for flowing rainwater leaking from a gap between the lower end fixing frame and the lower end of the solar cell module to a vertical gutter. . 7. The waterproofing means includes an upper end waterproofing mechanism for waterproofing the vicinity of the upper end of the solar cell array, a lower end waterproofing mechanism for waterproofing the vicinity of the lower end of the solar cell array, and a near right end of the solar cell array. It consists of a right-end waterproofing mechanism for waterproofing and a left-side waterproofing mechanism for waterproofing the vicinity of the left end of the solar cell array. The upper-end waterproofing mechanism covers the area from the upper-end fixed frame to the tiled portion at the upper end of the roof surface and the right end. The lower waterproofing mechanism has a possibility that rainwater will blow up from the tiled part at the lower end of the roof surface to above the lower end of the solar cell array. The structure is covered with a waterproof board. The right end waterproof mechanism covers the area from the right end fixed frame to the tiled part on the right side of the roof surface and part of the lower end waterproof mechanism with a waterproof board. Mechanism left The roof-integrated solar cell array according to claim 1, 2 or 3, wherein a structure from a side end fixed frame to a tiled portion at a left end of a roof surface and a part of a lower end waterproofing mechanism are covered with a waterproof plate. 8. A waterproof plate used for a waterproof mechanism at an upper end portion of the waterproofing means covers an upper end fixed frame near a lower end thereof, bends a lower end portion toward a surface of the solar cell module, and cross-sections the upper end portion. The shape is bent downward in the roof surface in a substantially `` U '' shape, and the bent upper surface is brought into elastic contact with the back surface of the lowermost row of tiles at the upper end portion of the roof surface. The waterproof plate is installed so that its lower end covers the uppermost row of tiles at the lower end of the roof surface, and the back surface is adhered to the tile surface, and the roof surface is positioned slightly below the upper end of the waterproof plate in the horizontal direction. A rainwater blocking member for preventing rainwater having a long cross-sectional shape "L" shape is installed in the waterproofing means, a waterproof plate used for a right end waterproofing mechanism of the waterproofing means has a right end fixed frame and a vertical near the left end thereof. The cross-sectional shape covers the gutter and the right end The roof is bent leftward in a “U” shape, and the bent upper surface is brought into elastic contact with the back surface of the roof tile (the leftmost row) at the right end of the roof, and the waterproofing mechanism at the left end of the waterproofing means is provided. The waterproof plate used to cover the left end fixed frame and the downspout near its right end and bend the left end in the right direction on the roof surface so that the cross-sectional shape is substantially `` U ''-shaped. The elastic contact is made on the back surface of the roof tile (the rightmost row) at the left end of the roof surface,
8. The roof-integrated solar cell array according to 2, 3, or 7. 9. The first ventilation path, the first ventilation frame and the second ventilation frame formed by a space between the back surface of the solar cell module and the top surface of the roof between the downspouts. The roof-integrated solar cell according to claim 1, 2 or 3, wherein the air on the back surface of the solar cell module is ventilated and ventilated upward from below the roof surface using a second ventilation path formed by a space between the roof and the solar cell module. array. 10. The first ventilation frame has rainwater intrusion preventing means for preventing rainwater from entering the second ventilation path, and the second ventilation frame has a rainwater intrusion prevention means for the first ventilation frame. It has the function of a rain gutter that receives rainwater that has entered the second ventilation path that cannot be prevented by the means and flows out of the solar cell array, and the rainwater that has entered the second ventilation path enters the first ventilation path. 10. The roof-integrated solar cell array according to claim 1, further comprising rainwater intrusion prevention means for preventing intrusion. 11. The ventilation system according to claim 1, wherein the ventilation means includes a ventilation fan provided in the first ventilation path or the second ventilation path.
11. The roof-integrated solar cell array according to 2, 3, 9 or 10. 12. The roof-integrated solar cell array according to claim 1, wherein the ventilation fan is driven by power generated by a solar cell array or a separately provided solar cell.