JP2002294956A - Solar battery module and photovoltaic power generating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a solar battery module which is suitable for enhancing the setting density thereof. SOLUTION: The solar battery module is formed of a square solar battery module main body 21, and a frame 22 assembled by connecting together frame members 24 to 26 attached to four sides of the main body 21. One 26 of the mutually parallel frame members 24, 26 has an outer collar 26b which overhangs outward from the frame 22. The other frame member 24 has an inner collar 24b which overhangs inward from the frame in the same direction as that of the outer collar. Thus, when the solar battery modules 21 are set on stands 12 side by side, the inner collar 24b of one of the adjacently arranged solar battery modules 21 is overlapped on the outer collar 26b of the other solar battery module 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar cell module installed on a gantry, and a solar power generation device configured to arrange a plurality of such modules on a gantry to generate solar power.

[0002]

2. Description of the Related Art Some solar cell modules have a frame mounted around a rectangular solar cell module body. This type of solar cell module with a frame
For example, it is used by arranging a plurality of them on a gantry on a roof and constituting a solar power generation device together with the gantry.

FIG. 5 shows a conventional example of such a solar power generation device.
Shown in In FIG. 5, 1 indicates a solar cell module, and 2 indicates a gantry. Each solar cell module 1 is formed by attaching a frame 4 framed to a rectangular solar cell module body 3, and the frame members 4 a, 4 b of the frame 4 mounted on the gantry 2 are provided outside the frame 4. Outer flanges 4a1 and 4b1 are formed to project toward each other.

Each solar cell module 1 has an outer flange 4a.
1, 4b1 are fixed to the gantry 2 by tightening bolts 5 individually penetrating from above and nuts 6 screwed to the gantry 2 from below. Such a configuration uses bolt 5
Since the space S opened above can be secured, the solar cell module 1 is excellent in that the solar cell module 1 can be easily installed on the gantry 2.

However, the solar cell module 1 having the above configuration
Are arranged side by side on the gantry 2 between adjacent solar cell modules 1.
The space S is provided between the adjacent solar cell modules 1 by fixing the outer flanges 4a1 and 4b1 to the gantry 2 while facing each other. Therefore, the width L of each space S hinders the case where the installation density of each solar cell module 1 is increased. Therefore, it is disadvantageous to increase the installation density in order to increase the power generation area of the solar power generation device.

Further, both outer flanges 4a of each solar cell module are provided.
1, 4b1 must be individually fixed to the gantry 2 with bolts and nuts 5, 6, so that the number of fixing parts and the number of fixing points are large, and the width of the flange receiving portion 2a of the gantry 2 is also at least the above-mentioned width. Since L or more is required, the gantry 2 is large. Therefore, the cost of the solar power generation device is high.

[0007]

A first object of the present invention is to provide a solar cell module suitable for increasing the installation density. A second object of the present invention is to provide a low-cost photovoltaic power generation device that can increase the power generation area.

[0008]

According to a first aspect of the present invention, there is provided a solar cell module comprising: a rectangular solar cell module main body; and a frame attached to four sides of the module main body. In a solar cell module comprising a frame formed by connecting materials to each other, one of the parallel frame materials of the frame is provided with an outer flange extending outside the frame, and the other is provided with an outer flange. An inner flange is provided on the frame member so as to project inward of the frame in the same direction as the outer flange.

In the invention according to the first aspect, when a plurality of solar cell modules of the present invention are arranged side by side on a gantry, the solar cell modules having the outer flanges are arranged on the outer flange in a direction in which the solar cell modules are arranged. These solar cell modules can be installed on a gantry by overlapping the inner collars of other solar cell modules adjacent to. Therefore, a space for fixing the flanges of these modules to the gantry is not required between adjacent solar cell modules, and the mutual interval between adjacent solar cell modules can be reduced.

In order to solve the second problem, a photovoltaic power generator according to a second aspect of the present invention comprises a rectangular solar cell module main body and a frame member attached to four sides of the module main body. In a solar power generation device including a plurality of solar cell modules including a frame that is connected and framed, and a mount on which the modules are arranged side by side, each of the solar cell modules is placed on the mount. One of the frame members parallel to each other of the frame is provided with an outer flange extending outside the frame, and the other frame member is provided with an outer flange extending inside the frame in the same direction as the outer flange. A flange is provided, and the outer flange of one of the adjacent solar cell modules is overlapped with the inner flange of the other solar cell module, and each of the solar cells Pond module is characterized in that installed side by side on the platform.

In the invention according to the second aspect, since a plurality of the solar cell modules according to the first aspect are used, the other solar cell module is disposed on the outer flange of one of the adjacent solar cell modules. Each solar cell module can be arranged side by side on the gantry with the inner flanges of the modules overlapped. Therefore, between adjacent solar cell modules,
A space for fixing the flanges of these modules to the mount is not required, and the interval between adjacent solar cell modules can be reduced. Moreover, since the outer and inner flanges of the adjacent solar cell modules that overlap each other do not need to be individually fixed to the gantry, the number of parts for fixing and the number of fixing points can be reduced.

In the present invention, a solar cell module (photoelectric conversion module) that performs photoelectric conversion has an amorphous cell having an amorphous semiconductor, a single crystal semiconductor or a polycrystalline semiconductor. Crystalline ones and the like can be used. Further, in the present invention, each frame material of the frame can be formed of metal or synthetic resin, and it is desirable to use a mold material such as an extruded mold material. In particular, in the case of a metal, an extruded mold material of an aluminum alloy is preferably used. . Further, in the present invention, in order to fix the overlapped outer flange and inner flange to the frame, it is desirable to use a bolt penetrating them and a nut that is screwed together to fasten them together. By making the width of the flange longer than the width of the outer flange and fixing only the inner flange to the gantry, the outer flange may be sandwiched between the inner rim and the gantry. Further, the solar cell module of the present invention can be applied to a solar cell module that is installed on a roof or on the ground to generate solar power.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a solar cell module according to this embodiment. A plurality of solar cell modules 11 are arranged on a gantry 12 as shown in FIG.

As shown in FIG. 1, the solar cell module 11
Has a rectangular solar cell module main body (hereinafter abbreviated as module main body) 21 and a frame 22 attached to the periphery thereof. A semiconductor layer, for example, thin-film silicon is used for a solar cell (not shown) for photoelectric conversion of the module body 21. Gaskets 23 that are continuous with each other are fitted on the four sides of the module body 21.

The frame 22 includes first to fourth frame members 24 to 27 attached to four sides of the module main body 21, respectively.
The framework is formed. Each of the frame members 24 to 27 is made of, for example, an extruded aluminum alloy. Each of the frame members 24 to 27 has a fitting groove at the upper end thereof, which is opened inside the frame 22. Each side of the module main body 21 already fitted with the gasket 23 is closely fitted into each of these grooves, and the module main body 21 is attached to the frame 22 with its upper end opening closed.

The frame of the frame 22 is formed by a pair of frame members parallel to each other, and the notched ends 2 of the first and third frame members 24 and 26.
For example, the self-tapping screws 28 for inserting the notched ends 24a and 26a are overlapped with the end faces of the second and fourth frame members 25 and 27 obtained from the same extrusion molding die, and 27 tapping holes 25a, 27a
It is done by screwing into each.

In the plurality of solar cell modules 11,
When these are arranged side by side on the gantry 12, one of the parallel frame members (for example, the first and third frame members 24 and 26) whose inner surfaces face each other at intervals in the arrangement direction (for example, In the present embodiment, an outer flange 26b is provided on the third frame member 26), and the other (the first frame member 24 in the present embodiment).
Is provided with an inner collar 24b.

The outer flange 26b is formed to be bent at a substantially right angle from the lower end of the third frame member 26.
In other words, it is provided so as to protrude outside from the projection area of the module main body 21. The inner flange 24b is formed to be bent at a substantially right angle from the lower end of the first frame member 24 in the same direction as the outer flange 26b, and is provided to protrude inside the frame 22, in other words, in the projection area of the module body 21. Have been. Outer widths of the outer flange 24b and the inner flange 24b are substantially equal, and through holes 29 or 30 are opened correspondingly. Further, the height of the third frame member 26 is larger than the height of the first frame member 24 according to the thickness of the outer flange 26b.

As shown in FIG.
Is configured to include the solar cell module 21 having the above-described configuration, a plurality of pedestals 12, and a plurality of fixing means. The gantry 12 made of metal or the like is arranged on the roof of a building, for example.
Each mount 12 arranged at the same interval as the inner and outer flanges 24b and 26b of the solar cell module 11
1 has a height at which the fixing means can be operated from below, and a flange receiving portion 12a is bent at an upper portion thereof. Each fixing means is formed of, for example, a bolt 14 and a nut 15 screwed thereto. 2 in FIG.
Reference numeral 6 denotes a height-adjusting washer provided as needed.

In order to assemble the photovoltaic power generation device 13 by arranging a plurality of solar cell modules 11 side by side on each of the gantry 12 previously installed on the roof, first, the solar cell module 11 located at the extreme end 1
The second frame 12 (for example, the frame 12 at the left end in FIG. 2)
And the gantry 12 installed to the right of this,
The solar cell module 11 is temporarily placed. At this time, a through hole 2 is provided between the flange receiving portion 12a of the left end gantry 12 and the inner flange 24b of the solar cell module 11 mounted thereon.
It is desirable that the washer 16 be sandwiched in alignment with the position 9. Thereby, each installed solar cell module 1
1 can be aligned. However, washer 16
Is omitted, the leftmost solar cell module 1
1 inclines according to the thickness of the washer 16 which is the same as the thickness (approximately 2 mm or less) of each of the collars 24b and 26b.

A work space below the solar cell module 11 temporarily placed according to the height of the gantry 12 between the left gantry 12 and the second gantry 12 installed on the right side. By inserting a hand from below the module 11, the bolt 14 and the nut 15 are tightened to fix the inner flange 24 b of the solar cell module 11 to the gantry 12 at the left end. In this case, for example, the second solar cell module 11 installed next to, for example, the right side is temporarily placed, and the inner collar 24b is replaced with the outer collar 26 of the leftmost solar cell module 11 temporarily placed first.
It is preferable to stop the leftmost solar cell module 11 that has been temporarily placed first on top of the top of the solar cell module 11b so that the tightening operation of the bolts 14 and the nuts 15 can be more easily performed.

Next, a second solar cell module 11 is temporarily placed on the right side of the leftmost solar cell module 11 to which the inner flange 24b is fixed. In this temporary placement, the inner collar 24a of the second temporarily placed solar cell module 11 is overlaid on the outer collar 26b of the leftmost solar cell module 11, and the outer collar 26b of this module 11 is further The third frame 1 installed on the right
It is placed on the second collar receiving portion 12a. Then, in this state, the overlapped inner and outer flange portions 24b and 26b are fastened together by the bolts 14 and the nuts 15 and fixed to the second base 12 from the right. Thereby, at the same time when the installation of the solar cell module 11 on the left end is completed, the inner collar 2 of the second solar cell module 11 temporarily placed on the right side is completed.
The fixing of 4b to the gantry 12 is completed.

By repeating the above operation one after another in the direction in which the solar cell modules 11 are arranged, all the solar cell modules 11 are fixed to the gantry 12. In parallel with this operation, an electric connection operation between the adjacent solar cell modules 11 is also performed. Thereby, the installation of the solar power generation device 13 is completed. This completed state is shown in FIG.

As described above, the inner flange 24b is superimposed on the outer flange 26 between the adjacent solar cell modules 11, and each solar cell module 11 is installed on the gantry 12, and the solar power generator 1
3 is assembled. Therefore, the solar cell module 11
The outer surface of the third frame member 26 having the outer flange 26b of FIG. 1 and the outer surface of the first frame member 24 of another solar cell module 11 adjacent to the module 11 in the direction in which the module 11 is arranged are placed back to back. It can be approached or abutted. As described above, the mutual interval between the solar cell modules 11 adjacent to each other in the arrangement direction can be reduced including the disappearance of this interval, so that the installation density of the solar cell modules 11 arranged side by side increases. Therefore, the power generation area of the solar power generation device 13 can be increased. It should be noted that leaving some space between the outer surfaces of the first and third frame members 24 and 26 of the solar cell modules 11 adjacent to each other in the arrangement direction other than the overlapping flanges 24b and 26b requires that the solar cell module 11 This is preferable in that it can absorb deformation due to thermal expansion.

Further, the overlapping outer flange 26b and inner flange 24b of the adjacent solar cell modules 11 are connected to each other by bolts.
Both nuts 24 and 15 are fastened together.
It is not necessary to individually fix b and 26b. Therefore, the number of components for fixing the solar cell module 11 to the gantry 12 and the number of fixing portions can be reduced. In addition, the flange receiving portion 12a of the gantry 12 has two overlapping flanges 24b,
26b, the width can be reduced, and the gantry 12 can be made compact. Therefore, the cost of the solar power generation device 13 can be reduced.

FIG. 3 shows a second embodiment of the present invention. Since this embodiment is basically the same as the first embodiment, the same or similar components are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, different points from the first embodiment will be described. I do. The second embodiment is different from the first embodiment in that the mounting of the gantry and the adjacent solar cell module is facilitated by engaging the claw instead of omitting the inner flange of each solar cell module.

That is, on the inner surface of the lower portion of the first frame member 24, a claw receiving portion 24c formed of, for example, a convex portion having a triangular cross section is provided. Further, on the outer flange 26b of the third frame member 26, the first frame member 24 of the adjacent solar cell module 11 is placed.
A locking claw 26c that is hooked on the claw receiving portion 24c is integrally protruded. This upward locking claw 26c is the third frame member 2
6 is provided so as to be opposed to and close to the substantially vertical outer surface of the sixth.
A receiving plate 35 is fixed in advance via bolts and nuts 14 and 15 on an endmost pedestal, for example, the pedestal 12 at the left end in FIG. The receiving plate 35 has substantially the same thickness as the outer flange 26b, and a locking claw 35a having a configuration similar to that of the locking claw 26c protrudes upward from the upper surface thereof.

In order to assemble the photovoltaic power generator 13 by arranging the solar cell modules 11 according to the second embodiment having the above-described configuration, first, for example, a frame 12 at the left end in FIG. The leftmost solar cell module 11 is disposed so as to straddle the outer frame 26b of the module 11 and the bolt / nut 1
Fix at 4 and 15. In this case, the nail receiving portion 24c of the first frame member 24 of the solar cell module 11 at the left end is
It is hooked on the locking claw 35a of the receiving plate 35 and fixed so as not to come off. Next, the first frame member 24 of the second solar cell module 11 to be installed on the right side of the leftmost solar cell module 11 is fixed to the second frame 12 by the leftmost solar cell. The claw 26c is inserted between the vertical wall portion of the third frame member 26 of the module 11 and the locking claw 26c from above and elastically deforms the locking claw 26c. The part 24c is hooked and fixed so as not to come off. At the same time, the outer flange 26b of the second solar cell module 11 is fixed to the third frame 12 from the left with bolts and nuts 14,15. Then, the above operations are repeated one after another in the direction in which the solar cell modules 11 are arranged, and the necessary electrical connection operations are performed in parallel, so that all the solar cell modules 11 are fixed to the gantry 12 and The device 13 is assembled.

Also in the second embodiment, similarly to the first embodiment, the outer surface of the third frame member 26 having the outer flange 26b of the solar cell module 11 is adjacent to the module 11 in the direction in which the module 11 is arranged. The outer surface of the first frame member 24 of the other solar cell module 11 can approach or abut against the back-to-back state. Therefore, the installation density of the solar cell modules 11 arranged side by side can be increased, and the power generation area of the solar power generation device 13 can be increased.

Also, the number of bolts and nuts 14 and 15 used for fixing the solar cell module 11 to the mount 12 can be reduced, the number of fixing points can be reduced, and the mount 12 can be downsized as in the first embodiment. However, in this embodiment, since the first frame member 24 is fixed by the engagement of the claw,
The number of holes through which the bolts 14 are inserted is small. Therefore, it is excellent in that the bolt 14 can be easily passed through and the installation work can be more easily performed.

FIG. 4 shows a third embodiment of the present invention. Since this embodiment is basically the same as the first embodiment, the same or similar components are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, different points from the first embodiment will be described. I do. The difference between the third embodiment and the first embodiment is the height of the first and third frame members of each solar cell module.

That is, the first and third frame members 24 and 26 have the same height. Thereby, the washer for height adjustment adopted in the first embodiment can be omitted, and the cost can be reduced.

The solar cell module 11 having such a configuration can be arranged side by side on each mount 12 in the same procedure as in the first embodiment. However, as described above, the first and third frame members 24 having the same height are provided. , 26 overlap with the outer flange 26b, for example, the second and subsequent solar cell modules 11 from the left in FIG. 4 are slightly inclined in the same direction according to the overlapping thickness. However, this slope is 2m thick
m, the appearance of the installed photovoltaic power generator 13 is not significantly impaired by the gentle inclination.

In the third embodiment, the first
The gantry of the present invention can be solved similarly to the embodiment. Moreover,
As described above, all of the solar cell modules 11 except for the solar cell module 11 at one end in the arrangement direction are installed at an angle, so that the solar power generation device 13 is preferably installed on a flat roof. That is,
Since it is possible to prevent rainwater from accumulating on the solar cell modules 11 by inclining most of the solar cell modules 11 without devising an inclination of the gantry 12, it is preferable in terms of durability.

[0036]

According to the first aspect of the present invention, the inner flange can be placed on the outer flange of the adjacent solar cell module, and these solar cell modules can be installed on the gantry. Since the interval can be reduced, a solar cell module suitable for increasing the installation density can be provided.

According to the second aspect of the present invention, since the solar cell modules of the first aspect of the present invention are arranged side by side on a gantry, the interval between adjacent solar cell modules is small, and Since the installation density can be increased, the power generation area can be increased, and it is not necessary to fix the overlapping outer and inner flanges individually, and the number of fixing parts and fixing points can be reduced, resulting in low cost. A simple solar power generation device can be provided.

[Brief description of the drawings]

FIG. 1A is a perspective view showing a solar cell module according to a first embodiment of the present invention. (B) is ZZ of FIG. 1 (A).
Sectional drawing shown along a line. FIG. 2C is a cross-sectional view taken along line YY in FIG.

FIG. 2 is a cross-sectional view showing a solar power generation device formed by arranging a plurality of the solar cell modules of FIG. 1 on a mount.

FIG. 3 is a cross-sectional view showing a solar power generation device formed by arranging a plurality of solar cell modules according to a second embodiment of the present invention on a pedestal.

FIG. 4A is a sectional view showing a solar cell module according to a third embodiment of the present invention. FIG. 4B is a cross-sectional view showing a solar power generation device formed by arranging a plurality of the solar cell modules of FIG.

FIG. 5 is a cross-sectional view illustrating a solar power generation device formed by arranging a plurality of conventional solar cell modules on a gantry.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Solar cell module 12 ... Stand 13 ... Solar power generation device 21 ... Solar cell module main body 22 ... Frame 23, 24, 25, 26 ... Frame material 24b ... Inner flange 26b ... Outer flange

Claims (2)

[Claims] 1. A solar cell module comprising: a rectangular solar cell module main body; and a frame formed by connecting frame members attached to four sides of the module main body to each other, wherein the frame members are parallel to each other. In one of the frame materials,
A solar cell module, comprising: an outer flange extending outside the frame; and an inner flange extending inward of the frame in the same direction as the outer flange on the other frame member. 2. A plurality of solar cell modules each comprising a rectangular solar cell module main body, a frame formed by connecting frame members attached to four sides of the module main body to each other, and these modules are arranged side by side. A solar power generation device comprising: a frame that is mounted on the frame, wherein each of the solar cell modules is provided on one of frame members parallel to each other of the frame placed on the frame, A flange is provided, and the other frame member is formed by providing an inner flange extending inward of the frame in the same direction as the outer flange, and is formed of one of the adjacent solar cell modules. A photovoltaic power generation device, wherein the inner collar of the other solar cell module is superimposed on the outer collar, and the respective solar cell modules are arranged side by side on the mount.