JP2001295438A - Solar power generating device and method for mounting the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a solar battery from being deformed by pressure produced by the expansion of the solar battery which may occur if the solar battery reaches high temperatures during use, and facilitate mounting of the solar battery. SOLUTION: Base fixing stands 15a and 15b are screwed to a folded-plate roof and lower stands 14a to 14c are screwed to the upper portions of the base fixing stands 15a and 15b. With folded-back parts 12ae, 12af, 12be and 12bf disposed within placement grooves 14aa to 14ca in the lower stands 14a to 14c, the solar batteries 12a and 12b are positioned on the upper portions of the lower stands 14a to 14c and upper face covers 11a to 11c positioned thereon are screwed to the lower stands 14a to 14c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photovoltaic power generator for converting light energy into electric energy, and more particularly to a photovoltaic power generator using a film type solar cell.

[0002]

2. Description of the Related Art In recent years, with increasing interest in environmental problems on a global scale, photovoltaic power generation devices that convert light energy into electric energy have been put into practical use. The photovoltaic power generation device includes a solar cell that performs photoelectric conversion and a support column that supports the photovoltaic cell, and is installed outdoors such as a rooftop of a building that can efficiently receive sunlight.

The structure of a solar cell has generally been such that the surface is covered with a protective glass. In recent years, a solar cell in which an amorphous silicon film is laminated on a heat-resistant film substrate is bonded to a steel plate. Practical use of a film-type solar cell in which is covered with a fluorine-based resin film is also in progress. This film-based solar cell uses a fluorine-based resin film to cover its surface, so that its weight can be reduced, and it also has advantages such as high flexibility and high impact resistance. It is expected to be applied to applications.

[0004]

However, a film-type solar cell has a high coefficient of thermal expansion. When this film-type solar cell is fixed to a roof or the like which reaches a high temperature by solar heat, the heat causes the entire solar cell to be heated. This expansion causes pressure to be applied to the solar cell from the fixed part with the roof, etc.
There is a problem that the solar cell itself is deformed.

[0005] Further, since the film-based solar cell has high flexibility, there is also a problem that it is difficult to handle the solar cell when it is installed outdoors or the like where the wind is strong. The present invention has been made in view of such a point, and even when the solar cell reaches a high temperature during use and the solar cell expands, the solar cell may be deformed by the pressure generated by the expansion. It is an object of the present invention to provide a photovoltaic power generation device that can prevent the occurrence of a solar power generation.

Another object of the present invention is to provide a photovoltaic power generator which can be easily mounted even when a film type solar cell is used.

[0007]

According to the present invention, in order to solve the above-mentioned problems, a photovoltaic power generator for converting light energy into electric energy has an arrangement groove at an upper portion and is screwed to a folded plate roof. A fixing base, having a folded portion at an edge portion, in a state where at least a part of the folded portion is arranged inside the arrangement groove, a solar cell arranged above the fixing stand, and And a top cover that is disposed on the top surface and that is screwed to the fixing base.

[0008] Here, the fixing base is screwed to the folded-plate roof, the solar cell is disposed above the fixing base in a state where the folded portion is disposed inside the arrangement groove of the fixing base, and the upper cover is fixed. Screwed to the table.

Further, in a photovoltaic power generator for converting light energy into electric energy, a foundation fixing base fixed to an upper surface of the folded-plate roof by using bolts for fixing the folded-plate roof; A solar power generation device is provided, comprising: a lower base screwed to an upper part of a fixed base; and a solar cell arranged on the upper part of the lower base.

[0010] Here, the base fixing stand is screwed and fixed to the upper surface of the folded plate roof by diverting bolts for fixing the folded plate roof, the lower stand is screwed to the upper part of the base fixed stand, and the solar cell is , Placed on the upper part of the lower stand.

Further, in the method for mounting a photovoltaic power generation device for converting light energy into electric energy, a bolt for fixing the folded plate roof is used, and a bolt hole corresponding to the bolt for fixing the folded plate roof is formed. A method for mounting a photovoltaic power generation device is provided, in which a base fixing base is fixed to an upper part of the folded plate roof, a lower base is screwed to the upper part of the base fixing base, and a solar cell is disposed on the upper part of the lower base.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an assembly diagram showing a configuration of a photovoltaic power generator 10 according to the present embodiment, and FIG.
It is the perspective view which showed the structure of the solar power generation device 10 after an assembly.

The photovoltaic power generation device 10 includes basic fixing bases 15a and 15b and lower bases 14a to 14c constituting a fixing base, and a solar cell 12 which is a film type solar cell for performing photoelectric conversion.
a, 12b, upper surface cover 1 arranged on the upper surfaces of solar cells 12a, 12b and screwed to lower stands 14a to 14c
1a to 11c, upper surface covers 11a to 11c are attached to lower base 14a.
14a to 14c, and bolts 16a to 16k to screw the lower bases 14a to 14c to the base fixing bases 15a and 15b, and are screwed to the folded plate roof 20 by the bolts 21a to 21l. .

The base fixing bases 15a and 15b fold a rectangular plate at 90 ° in two directions parallel to each other in the same direction so that the cross section perpendicular to the fold line becomes a U-shape. It is a U-shaped structure formed and has screw holes for screwing at portions corresponding to the upper and lower portions of the U-shape.

The lower bases 14a to 14c hold the rectangular plate 90 degrees in the same direction on two parallel folding lines.
It is folded back by degrees, and the resulting cross-sectional shape has a shape like a U-shaped structure that is bonded two by two back to back. The U-shaped structures are bonded together with a gap between the bonded portions, and the gaps serve as arrangement grooves 14aa, 14ba, and 14ca formed on the upper portions of the lower bases 14a to 14c. In addition, lower stand 1
Screw holes are also formed in upper and lower portions of 4a to 14c.

The upper covers 11a to 11c have a rectangular parallelepiped plate shape, and have screw holes for screwing. Base fixing bases 15a, 15b, lower bases 14a to 14c,
As a material used for the upper surface covers 11a to 11c, wind,
As long as the material has mechanical strength enough to withstand outdoor environments such as snow and reliability enough to withstand long-term outdoor use, stainless steel or the like can be used without any particular limitation.

Each of the solar cells 12a and 12b has a rectangular plate shape in which a solar cell in which an amorphous silicon film is laminated on a stainless steel substrate is bonded to a steel plate, and the surface is covered with a fluorine resin film. Solar cells 12a, 12
The edge portion of b is folded back at 90 ° in the same direction and parallel to each side, whereby the folded portion 12ae,
12af, 12be, and 12bf are configured. The details of the folded portions 12ae, 12af, 12be, and 12bf will be described later. Further, the solar cells 12a and 12b have mounting holes 12aa to 12ad and 12ba having a margin in shape with respect to the sectional diameter of the bolts 13a to 13h.
~ 12bd are formed.

Next, the arrangement of the entire photovoltaic power generator 10 will be described. The folded plate roof 20 on which the photovoltaic power generator 10 is to be installed has a corrugated uneven portion. To mount the photovoltaic power generator 10 on the folded-plate roof 20, the base fixing stands 15a and 15b are arranged so as to be at right angles to the unevenness of the folded-plate roof 20, and the base fixing stand is provided above the convex portion of the uneven portion. This is performed by screwing and fixing the lower portions of 15a and 15b with bolts 21h to 21l. Here, the bolts 21h to 21l are connected to the folded roof 2
0 are used for fixing the roof fixing members to a roof housing (not shown), and the base fixing bases 15a and 15b are fixed by diverting them.

On the upper part of the base fixing bases 15a and 15b fixed by screws to the upper part of the folded plate roof 20, a lower base 14 is provided.
a to 14c are arranged perpendicularly to the foundation fixing bases 15a and 15b.
a and 15b are fixed by screws 16a to 16k. The lower platform 14a here
The mounting of the bases 14a to 14c to the base fixing bases 15a and 15b is as follows.
This is performed so that the lower bases 14a to 14c can hold the edge portions of the solar cells 12a and 12b.

The lower bases 14a to 14c screwed and fixed to the upper parts of the base fixing bases 15a and 15b have the arrangement grooves 14aa, 14ba and 14ca respectively provided thereon, and the solar cells 12a and 12b have Folded portions 12ae, 12af, 12be, 12bf having
Are arranged in the upper portions of the lower bases 14a to 14c in a state where are arranged inside the arrangement grooves 14aa, 14ba, and 14ca.

On top of the solar cells 12a and 12b, top covers 11a to 11c are arranged at positions not covering the light receiving portions of the solar cells 12a and 12b.
a to 11c are connected to the lower base 14 by bolts 13a to 13h.
a to 14c. The screw fixing here is performed by fixing the solar cells 12a and 12b to the upper surface covers 11a to 11b.
11c and lower bases 14a to 14c, mounting holes 12aa to 12ad for solar cells 12a and 12b,
This is performed in a state where bolts 13a to 13h are passed through 2ba to 12bd.
2a and 12b are not firmly fixed. As described above, by not firmly fixing the solar cells 12a, 12b, even when the solar cells 12a, 12b are heated to a high temperature and expanded, the fixing parts of the solar cells 12a, 12b are connected to the solar cells 12a, 12b. It is possible to avoid applying excessive force. The detailed configuration will be described later.

Next, the details of the arrangement of the solar cells will be described. FIG. 3 is a plan view showing the configuration of the solar cell 12a, and FIG. 4 is a sectional view thereof. Here, FIG. 4A is a cross-sectional view taken along the line AA of the solar cell 12a shown in FIG. 3, and FIG. 4B is a cross-sectional view taken along the line BB.

As described above, the solar cell 12a has the mounting holes 12aa to 12ad. Each of the mounting holes 12aa to 12ad is connected to the light receiving portion 12a of the solar cell 12a.
i, and at a position with a margin for the cross-sectional diameter of the bolts 13a to 13h. In addition, the shape of the mounting holes 12aa to 12ad may be any shape such as a circle, an ellipse, and a square, but may be an ellipse or a rectangle that is long in the longitudinal direction of the solar cell 12a.
More desirable. This is because the expansion width of the solar cell 12a when the solar cell 12a is heated is larger in the longitudinal direction, and a space for absorbing the expansion is necessary.

As described above, the solar cell 12a
Has folded portions 12ae to 12ah. The folded portions 12ae to 12ah are portions obtained by folding the four sides of the solar cell 12a by 90 ° in the same direction. By providing the folded portions 12ae to 12ah in this manner, the solar cell 12a can have a firm The installation work of the battery 12a can be facilitated.

FIG. 5 is a plan view showing a state in which the solar cells 12a and 12b are sandwiched between the upper cover 11b and the lower base 14b. FIG. 6 is a sectional view taken along the line CC of FIG. Shows the DD sectional view of FIG.

As shown in FIGS. 5 to 7, on the upper part of the lower base 14b, solar cells 12a and 12b
2af and 12be are arranged inside the arrangement groove 14ba. Here, as shown in FIG. 6, the folded portion 12a arranged inside the arrangement groove 14ba
f and 12be are arranged with a space margin in the gap between the arrangement grooves 14ba.
Therefore, the solar cells 12a and 12b are not fixed. In addition, as shown in FIG.
2ah, the inner part is to the edge of the lower base 14b,
The solar cells 12a are arranged with sufficient space, and the folded portions 12ag and 12ah do not fix the solar cell 12a to the edge of the lower base 14b. Further, FIG.
As shown in FIG. 7, the upper cover 11b and the lower base 14b
Since the solar cell 12a is sandwiched between the solar cell 12a and the upper cover 11b and the lower base 1
The solar cell 12a is not fixed by 4b.
Also, the mounting holes 12aa to 12ad, 12ba to 12
The bd is configured so as to have a space margin with respect to the diameter of the bolts 13a to 13h.
12ad, 12ba-12bd, the solar cell 12
a and 12b are not fixed.

As described above, in the present embodiment, the foundation fixing bases 15a and 15b are fixed to the folded-plate roof by screws, and
Lower bases 14a to 14c are screwed and fixed to upper portions of 5a and 15b, and arrangement grooves 14aa to 14ca of lower bases 14a to 14c.
Internally folded portions 12ae, 12af, 12be, 12
Since the solar cells 12a and 12b are disposed above the lower bases 14a to 14c in a state where the bf is disposed, and the upper covers 11a to 11c disposed thereon are screwed and fixed to the lower bases 14a to 14c. 12a, 1
2b is not directly fixed, and the solar cell 1
Even when the solar cells 2a and 12b reach a high temperature and the solar cells 12a and 12b expand, the expansion causes pressure to be applied to the solar cells 12a and 12b from the fixed portion, and
It is possible to prevent a and 12b from being deformed.

Further, since the folded portions are provided on the solar cells 12a and 12b, the solar cells 12a and 12b can be made to have stiffness, and the solar cells 12a and 12b can be easily mounted. .

In this embodiment, a film type solar cell is used as the solar cell. However, the present invention is not particularly limited thereto, and a solar cell having another configuration may be used.

In the present embodiment, the folded portions 12ae, 12ae are provided inside the arrangement grooves 14aa-14ca of the lower bases 14a-14c.
With the 12af, 12be, 12bf arranged, the solar cells 12a, 12b are arranged above the lower bases 14a-14c, and the top covers 11a-11 arranged above the solar cells 12a, 12b are further arranged.
c is fixed to the lower bases 14a to 14c with screws, but when a solar cell having low flexibility using a glass substrate or the like is used, a pressing mechanism 31a as shown in FIG.
The solar cells 30, 30a, 30b may be held by 31b, 32. Here, in (a) of FIG. 8, two flat surfaces configured in a stepped manner are arranged in parallel, and by connecting them, the pressing mechanisms 31 a and 31 b are formed, and the pressing mechanisms 31 a and 31 b are placed on the upper part of the base fixing base 15 a. And the solar cell 30 is arranged with a margin between the inner parts of the holding mechanisms 31a and 31b and the upper surface part of the base fixing base 15a.
0 is held. In FIG. 8 (b), the pressing mechanism 32 is formed by folding back the U-shaped tip portion by 90 ° on both sides, and the pressing mechanism 32 is screwed and fixed to the upper portion of the base fixing base 15a. Mechanism 32
The solar cells 30a, 30b are arranged with a margin between the lower part of the folded part and the upper surface of the base fixing base 15a,
Thus, the solar cell 30 is held.

Further, in the present embodiment, the solar cells 12a, 1
Although the mounting hole is formed in 2b, a solar cell having no mounting hole may be used. In this case, the lower bases 14a to 14c of the top covers 11a to 11c
Screw fixing to c is performed by fixing the outer portion of the edge of the solar cell with a bolt.

[0032]

As described above, according to the present invention, the fixing base is screwed and fixed to the folded-plate roof, and the solar cell is arranged above the fixing base in a state where the folded portion is arranged inside the arrangement groove of the fixing base. Then, because the top cover arranged above it was fixed by screwing to the fixing base, the solar cell was not directly fixed, the solar cell reached a high temperature during use,
Even when the solar cell expands, it is possible to prevent the solar cell from being deformed by applying pressure to the solar cell from the fixing portion due to the expansion.

Further, since the folded portion is provided in the solar cell, the solar cell can be made firm and the solar cell 1 can be easily mounted.

[Brief description of the drawings]

FIG. 1 is an assembly diagram showing a configuration of a solar power generation device.

FIG. 2 is a perspective view showing a configuration of a photovoltaic power generation device after assembly.

FIG. 3 is a plan view showing a configuration of a solar cell.

FIG. 4 is a sectional view of the solar cell shown in FIG.

FIG. 5 is a plan view showing a state where the solar cell is sandwiched between an upper cover and a lower base.

FIG. 6 is a sectional view taken along the line CC of FIG. 5;

FIG. 7 is a sectional view taken along line DD of FIG. 5;

FIG. 8 is a perspective view showing a configuration in which a solar cell is held by a pressing mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Photovoltaic power generator 11a-11c Top cover 12a, 12b Solar cell 12ab-12ad, 12ba-12bd Mounting hole 12ae-12ah, 12be, 12bf Folding part 14a-14c Lower base 14aa-14ca Arrangement groove 15a, 15b Base fixing stand 20 folding Plate roof 30, 30a, 30b Solar cell 31a, 31b, 32 Holding mechanism

Claims (7)

[Claims] 1. A photovoltaic power generation device for converting light energy into electric energy, comprising: a fixing base having an arrangement groove at an upper part and being screwed to a folded plate roof; A solar cell disposed on the fixed base in a state where at least a part of the portion is disposed inside the placement groove; and an upper surface cover disposed on the upper surface of the solar cell and screwed to the fixed base. And a photovoltaic power generator comprising: 2. The photovoltaic power generator according to claim 1, wherein the solar cells are arranged without being fixed firmly. 3. The solar cell according to claim 2, wherein the solar cell has a large-sized mounting hole, and the top cover is screwed to the fixing base via the mounting hole. Solar power generator. 4. The fixing base has a base fixing base fixed at a right angle to the unevenness of the folded-plate roof by screwing to the folded-plate roof, and the arrangement groove at an upper part, and 2. The photovoltaic power generation device according to claim 1, wherein the photovoltaic power generation device is constituted by a lower base fixed by screws to an upper part. 5. A photovoltaic power generator for converting light energy into electric energy, wherein: a foundation fixing base fixed to the upper surface of the folded-plate roof by screws using bolts for fixing the folded-plate roof; A solar power generation device comprising: a lower base screwed on an upper part of a fixed base; and a solar cell disposed on the upper part of the lower base. 6. The base fixing base has a bolt hole corresponding to a position of a bolt for fixing the folded-plate roof, and the lower base is mounted at a position capable of holding an edge portion of the solar cell. The solar power generation device according to claim 5, wherein 7. A method for mounting a photovoltaic power generation device for converting light energy into electric energy, wherein a bolt for fixing a folded plate roof is used, and a bolt hole corresponding to the bolt for fixing the folded plate roof is formed. A method for mounting a photovoltaic power generation device, comprising: fixing a base fixing base to an upper part of the folded plate roof; screwing a lower base on the upper part of the base fixing base; and disposing a solar cell on the upper part of the lower base.