JP3169546B2 - Solar cell module and method of mounting solar cell module on roof - Google Patents

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, and more particularly to a solar cell module suitable for installation on a roof of a building such as a house requiring fire resistance and a roof of the solar cell module. Related to the mounting method.

[0002]

2. Description of the Related Art In recent years, along with the worsening of global environmental problems and energy depletion problems due to increased consumption of fossil fuels, etc., panel-shaped solar cell modules have been installed on roofs of houses and the like, and clean solar cells have been installed. 2. Description of the Related Art A residential photovoltaic power generation system that directly extracts power from energy and supplies the power to a home has attracted attention. This type of solar cell module is configured by collecting a large number of solar cells of the smallest unit called a cell into a panel shape. When roughly classified into solar cells, silicon solar cells, compound semiconductor solar cells, and organic semiconductor solar cells Etc. Of these three types of solar cells, organic semiconductor solar cells currently have a conversion efficiency of 1% or less from sunlight to electric energy, and have a long way to practical use. The production costs are high, and they are only slightly produced for special purposes. That is, silicon solar cells account for most of the total solar cell production. Silicon solar cells include single crystal silicon solar cells,
There are a polycrystalline silicon solar cell, an amorphous silicon solar cell, and the like. Each of these three types of silicon solar cells has its own characteristics, but the one with the highest conversion efficiency is a single-crystal silicon solar cell, followed by a polycrystalline silicon solar cell. For this reason, a crystalline (single-crystal / polycrystalline) silicon solar cell is generally used for residential power.

[0003] However, these crystalline silicon solar cells cannot be formed directly on the back surface of a glass substrate as a support plate as in amorphous silicon solar cells and compound semiconductor solar cells (for example, see Japanese Patent Application Laid-Open No. 5-29-29).
Conventionally, as shown in FIG. 13, a large number of crystalline silicon solar cells 1, 1,... And EVA (ethylene vinyl acetate) 2
Between the glass substrate 3 and the back cover case 4, and
A2, the glass substrate 3 and the back cover case 4 are thermocompression-bonded to form a laminated structure, whereby the crystalline silicon solar cells 1, 1,... Are sealed in the EVA 2, the glass substrate 3 and the back cover case 4. In order to provide moisture resistance and high insulation properties, and to further increase the strength of the module as a whole, a metal frame 5 made of aluminum or the like is fitted on the periphery of the laminate to manufacture a solar cell module (the same publication). reference).

[0004]

The above-mentioned EVA
No. 2 has excellent qualities as a filling adhesive (encapsulant) for solar cell modules, because it has excellent moisture resistance and little deterioration of light transmittance due to ultraviolet rays. There was a drawback that it was easy to burn. Therefore, arranging a large number of the conventional solar cell modules on the roof is equivalent to arranging a large amount of combustible materials on the roof, and thus installing the solar cell modules on a roof that is not fire-resistant. If you do,
Some pointed out that there was a problem. In addition, solar cells generate electricity using sunlight, but if the solar cells themselves are excessively heated, the conversion efficiency is significantly reduced. , A dedicated pedestal was required, and this dedicated pedestal increased the overall cost of the solar power generation system.

The present invention has been made in view of the above-mentioned circumstances, and a solar cell with a crystalline silicon solar cell mounted thereon can eliminate a dedicated stand and can function as a roofing material having fire resistance. It is an object of the present invention to provide a module and a method for mounting the solar cell module on a roof.

[0006]

In order to solve the above-mentioned problems, according to the present invention, a light receiving surface is provided on an inner bottom surface of a hollow case made of a refractory material whose upper surface opening is covered with a transparent plate and whose inside is sealed. A solar cell module main body in which a plurality of crystalline silicon solar cells are fixed to the upper surface opening with an adhesive, and a mounting member made of a refractory material for mounting and fixing the solar cell module main body to the inclined roof surface. Are provided integrally.

Further, according to a second aspect of the present invention, a plurality of crystalline silicon solar cells are provided with the light receiving surface facing the upper surface opening on the inner bottom surface of a hollow case made of a refractory material whose upper surface opening is covered with a transparent plate and the inside is sealed. A solar cell module main body in which the battery cells are fixed with an adhesive, and a mounting member made of a refractory material for mounting and fixing the solar cell module main body to the inclined roof surface while floating the solar cell module main body by a predetermined amount from the inclined roof surface. It is characterized by being provided integrally.

According to a third aspect of the present invention, there is provided the solar cell module according to the first or second aspect, wherein the hollow case and the refractory material as the material of the mounting member are any of metal, ceramics, and asbestos cement. It is characterized by one or a combination thereof.

According to a fourth aspect of the present invention, there is provided the solar cell module according to the first or second aspect, wherein the outer bottom surface of the hollow case in which a metal is selected as a refractory material has a fin structure for heat dissipation. It is characterized by having.

[0010] The invention according to claim 5 is based on claim 1,
The solar cell module according to 2, 3, or 4, wherein an inert gas is sealed in the hollow case.

According to a sixth aspect of the present invention, there is provided the solar cell module according to the first or second aspect, wherein a pair of the mounting members are provided at any two opposing side ends of the rectangular hollow case. Each mounting member is extended and includes a fixing piece fixed in a state of being in contact with the inclined roof surface, and a rising piece rising from an edge of the fixing piece facing the solar cell module body side. The upper end edge of the upright piece is connected to the upper edge of one of the side ends of the hollow case.
A mounting hole through which the mounting fixture is inserted is provided.

According to a seventh aspect of the invention, there is provided the solar cell module according to the sixth aspect, wherein the fixing piece is formed in a folded plate shape or a corrugated shape in cross section.

The invention according to claim 8 relates to the solar cell module according to claim 6 or 7, wherein, in the pair of mounting members, a fixing piece of one mounting member and a fixing piece of the other mounting member are provided. Are provided with overlapping portions each having a predetermined overlapping width and having an undulating shape that fits in the vertical direction without changing the direction.

[0014] The ninth aspect of the present invention is the sixth aspect of the present invention.
According to the method for mounting a solar cell module on a roof according to 7 or 8, the fixing device is mounted on a predetermined portion of the inclined roof surface in advance with a shaft portion directed upward, and thereafter, the inclined device is mounted on the inclined roof surface. Mounting the solar cell module on the inclined roof surface by fitting the corresponding mounting hole of the fixing piece of the mounting member into the shaft of the fixing tool while mounting the solar cell module on the roof surface; It is characterized by.

The invention according to claim 10 is the same as the invention according to claim 7.
Regarding the method of mounting the solar cell module described on the roof,
When attaching the solar cell module to the inclined roof surface of folded or corrugated roof, the fixing piece formed in a folded or corrugated cross section is fitted to the folded or corrugated roof roofing material. And mounting the solar cell module on the folded plate or corrugated plate, and then fixing the solar cell module to the inclined roof surface.

The invention according to claim 11 is the same as the invention according to claim 8.
Regarding the method of mounting the solar cell module described on the roof,
When arranging a plurality of solar cell modules side by side on an inclined roof surface, the overlapping portion provided on the fixing piece of one of the mounting members of any one of the solar cell modules, and the corresponding mounting member of the adjacent solar cell module A plurality of the solar cell modules are fixed to an inclined roof surface in a state where the overlapping portions provided on the fixing pieces are vertically overlapped with each other in a fitted state.

[0017]

According to the structure of the present invention, sunlight transmitted through a transparent plate such as glass is incident on a light receiving surface of a crystalline silicon solar cell fixed to the inner bottom surface of the hollow case, and the sunlight is converted into electric energy. Is done. Adhesives and sealing materials are used for bonding in limited areas, such as for fixing the crystalline silicon solar cell to the inner bottom surface of the hollow case and for closing the gap between the transparent plate and the peripheral edge of the upper opening of the hollow case. It is only used for sealing and the like, and the inside of the hollow case is not completely filled with the adhesive. Therefore, even if there is a fire, there is no possibility that the entire solar cell module will burn violently. In addition, since the solar cell module main body can be directly mounted and fixed on the inclined roof surface by the mounting member, a dedicated stand is not required. In addition, since the hollow case is formed from metal, ceramics, or asbestos cement having excellent fire resistance, it can also function as a roofing material having fire resistance. In addition, since the light-receiving surface of the crystalline silicon solar cell is not covered with an adhesive, it is not necessary to use a material having excellent light transmittance as the adhesive, and an adhesive having a high heat resistance from a wide range. Can be selected and used.

When a hollow case made of metal is used to prevent overheating of the solar cell itself, fins for heat radiation may be provided on the outer bottom surface. In this case, since the material itself is a heat-defective conductor, overheating can be suppressed. In addition, if the solar cell module body is configured to float a predetermined amount from the inclined roof surface,
It is preferable that a ventilation layer (a heat escape route) is formed between the outer bottom surface of the hollow case and the inclined roof surface. When the solar cell module of the present invention is installed on an inclined roof surface of a house or the like,
Since the solar cell module itself has fire resistance performance, a roofing material and a fire-resistant covering material in the installation area can be omitted.
Further, if the mounting member has a folded plate shape or a corrugated plate shape, when a plurality of solar cell modules are arranged side by side on an inclined roof surface such as a folded plate or a corrugated plate, adjacent solar cell modules, The module and the folded plate and the like can be overlapped in a fitted state, which is preferable in terms of fire prevention, waterproofing, and appearance.
Further, in order to prevent oxidation and corrosion of the cell electrode portion in the hollow case, the inside of the hollow case may be filled with an inert gas such as nitrogen.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. The description will be specifically made using an embodiment. First Embodiment FIG. 1 is a schematic view showing a scene in which a solar cell module according to a first embodiment of the present invention is installed on an inclined roof of a house or the like, and FIG. 2 is a schematic plan view showing a configuration of the solar cell module. FIG. 3 is a cross-sectional view taken along the line II of FIG. 2, and FIG.
It is a connection explanatory view showing signs that a plurality of the same solar cell modules are connected with a connector. As shown in FIGS. 2 and 3, a solar cell module 6 of this example includes a plurality of crystalline silicon solar cells (hereinafter, referred to as a plurality of crystalline silicon solar cells) in a hollow metal case 8 covered and sealed with a glass plate 7 as a surface cover material. , A solar cell module body (hereinafter, simply referred to as a module body) 6a having a structure in which 9, 9,.
And a pair of mounting members 11, 11 for directly mounting and fixing the module main body 6a to the inclined roof surface 10a (FIG. 1) of the house 10 or the like.

As described above, the module main body 6a has a rectangular box-shaped hollow metal case 8 having a predetermined strength as a support member for supporting the solar cells 9, 9,. The box-shaped hollow metal case 8 is made of, for example, aluminum, pentite steel, a polyvinyl chloride coated steel plate (PVC steel plate), or the like, and has a shallow bottom at an upper surface opening 12. Is provided. On the inner bottom surface 14 of the hollow metal case 8, the photovoltaic cells 9, 9,... It is fixed with. The adhesive 15 is used only in an amount necessary for adhesion only between the back surface (the surface opposite to the light receiving surface) of the solar battery cells 9 and the inner bottom surface 14 of the hollow metal case 8. There is no need to have light transmissivity, and it is only necessary to use a material having excellent insulation and heat resistance. The solar cells 9, 9,...
Are interconnected in series and parallel by wirings 16, 16,... The upper surface opening 12 of the hollow metal case 8 is covered with the glass plate 7 after fixing the solar cells 9, 9,... To the inner bottom surface 14 of the hollow metal case 8, and the gap between the glass plate 7 and the flange 13 is , For example, resin seal 1 such as butyl rubber
The interior of the hollow metal case 8 is hermetically closed by being closed with 7. When a plurality of solar cell modules 6 and 6 are arranged side by side on a sloped roof surface 10a of a house 10 or the like, two adjacent solar cell modules 6 are mounted on a glass plate 7 stretched on the upper surface of the hollow metal case 8. , 6 are provided with a plurality of female connectors 18 for electrically connecting each other.
... are provided. The periphery of each female connector 18 has a sealed structure, and only the terminals are exposed to the outside.

The mounting members 11 and 11 are integrally formed with the hollow metal case 8 using the same metal material, and are respectively formed from two opposite long-side end edges of the flange 13 of the hollow metal case 8. It is bent out of the way. Each of the mounting members 11 rises from an elongated rectangular fixing piece 11a which is fixed by being brought into contact with the inclined roof surface 10a of the house 10 or the like, and a long side edge of the fixing piece 11a facing the module body 6a. Upright piece 11b.
The upper end edge of “b” is bent and connected to the long-side end edge of the flange 13 of the hollow metal case 8. Each fixing piece 11a has
A plurality of mounting holes 19, 19 are formed, and by attaching mounting fixtures 20, 20, such as bolts, to the mounting holes 19, 19, the solar cell module 6 is mounted on the inclined roof surface 10a of the house 10, etc. It can be fixed.

When the plurality of solar cell modules 6 and 6 configured as described above are installed on the inclined roof surface 10a of the house 10 or the like, as shown in FIG. .. Are provided. Then, the corresponding mounting holes 19, 19,... Of the solar cell module 6 are fitted into the mounting fixtures 20, 20,. Thereafter, if bolts are used as the mounting fixtures 20, 20,.
By screwing nut members (not shown) to 0,..., The mounting members 11, 11,... Of the solar cell modules 6, 6 are tightened and fixed. Thereby, the installation of the solar cell modules 6 and 6 is completed. In this case, the module bodies 6a, 6a
Will be directly fixed to the inclined roof surface 10a.
There is no need to provide a special gantry between the solar cell module and the inclined roof surface, and mounting can be performed easily.

When the installation of the solar cell modules 6 and 6 is completed, as shown in FIG. 4, the female connector 18 of the solar cell module 6 on the right in FIG. The male terminal 21a on the left side of the inter-module connection connector 21 is fitted to the female connector 18 of the solar cell module 6 on the left side in the figure while being fitted with the mold terminal 21a. The two solar cell modules 6, 6 are electrically connected to each other. In this case, the inter-module connection connector 21 is formed in a U-shape in which the connection conductor 23 is covered with an insulating material 22 such as ceramics or resin. In this state, the solar cell modules 6 and 6 can be electrically connected.
As described above, in the solar cell module 6 installed on the inclined roof surface 10a, the sunlight transmitted through the glass plate 7 is applied to the solar cells 9, 9 fixed to the inner bottom surface of the hollow metal case 8.
The light enters the light receiving surfaces of 9, ..., and the sunlight is converted into electric energy. Then, the electric power generated by all the solar cell modules 6 and 6 is collected, converted from DC to AC by an inverter (not shown), and supplied to the indoor wiring.

As described above, according to the structure of the first embodiment, the adhesive 15 is only used for fixing the solar cells 9 to the inner bottom surface 14 of the hollow metal case 8. Since the inside of the hollow metal case 8 is not completely filled with the adhesive 15, there is no fear that the entire solar cell module 6 will burn violently even in a fire. in addition,
Since the hollow metal case 8 is formed of a metal having excellent fire resistance, it can also function as a roofing material (building material) having fire resistance. Therefore, when the solar cell module 6 having the above-described configuration is installed on the inclined roof surface 10a of the house 10 or the like, the solar cell module 6 itself has a sufficient fire resistance performance, and the roofing material or the fireproof coating thereunder is provided. Materials can be omitted. Further, since the hollow metal case 8 bears most of the strength, it is not necessary to increase the strength of the glass plate 7, and the cost of the glass plate 7 can be reduced. The module body 6a is attached to the housing 1 by the mounting members 11,11.
Since it is directly attached and fixed to the inclined roof surface 10a such as 0, a dedicated stand is not required. Therefore, the overall cost of the residential solar power generation system can also be reduced.

Second Embodiment FIG. 5 is a schematic sectional view showing the structure of a solar cell module according to a second embodiment of the present invention, FIG. 6 is a schematic perspective view of the same, and FIG.
Is a schematic cross-sectional view showing the structure of the overlapping portion between the solar cell modules adjacent to each other in a direction orthogonal to the flow on the inclined roof surface, FIG. 8 is a schematic perspective view of the same, and FIG. FIG. 10 is a schematic perspective view showing the structure of the overlapping portion between the solar cell modules, and FIG. 10 is a schematic sectional view showing the structure of the overlapping portion of the solar cell module and a folded plate as a roofing material. The difference between the solar cell module 24 of this embodiment and that of the above-described first embodiment (FIG. 3) is that the mounting members 25, 25 are mountain-folded and valley-folded to form a folded plate shape as a whole. This is the point that the overlapping pieces 11c, 11c each having a large top and both slopes are provided. That is, the pair of mounting members 25, 25 of this example may be attached to the mounting member 25 on one side (for example, right side) without changing the direction, and may be fixed to the mounting member 25 on the other side (for example, left side) by a predetermined overlapping width. When they can be overlapped with each other, they can be overlapped in a fitted state, so that the overlapped pieces 11c, 11c, 11
11c are provided. A pair of left and right polymer pieces 1
1c and 11c are bent outward from the long-side end edges of the fixing pieces 11a and 11a, respectively. It is to be noted that if any one side (for example, the right side) of the overlapping piece 11c is set to be higher than the other side (for example, the left side) of the overlapping piece 11c by, for example, the thickness of the overlapping piece 11c, it is more reliable. Can be fitted. The configuration is substantially the same as that of the first embodiment except that the overlapping pieces 11c, 11c are attached to the mounting members 25, 25.
The same reference numerals are given to the same components as the components shown in FIG.

The solar cell modules 24, 24 having the above configuration
As shown in FIG. 7, bolts or the like are previously attached to a roof foundation made of a base plate 26 and an asphalt roofing material 27 as shown in FIG. The fixtures 20, 20, ... are attached in advance. First, while mounting the solar cell module 24 on the right side in the figure on the installation location of the inclined roof surface 10a, the mounting fixtures 20, 20,. …
Next, while mounting the solar cell module 24 on the left side in the figure at an installation location adjacent to the solar cell module 24 on the right side, the mounting fixtures 20, 20,. , 19,.
At this time, the mounting fixtures 20, 20,... For mounting the left solar cell module also function as an alignment mechanism for the overlapping portion. Therefore, when the fitting of the left solar cell module 24 is completed, the left solar cell module 24 is mounted. Polymerized piece 11
c is naturally fitted and polymerized on the polymerized piece 11c of the right solar cell module 24. Thereafter, when bolts are used as the mounting fixtures 20, 20,..., A nut member is screwed into the mounting fixtures 20, 20,.
Tighten 5, 25 ... and fix. Thereby, the installation of the solar cell modules 24, 24 is completed.

When the solar cell modules 24, 24 are arranged side by side in the flow direction of the inclined roof surface 10a of the house 10, etc., first, as shown in FIG. At this time, the solar cell module 24 on the upstream side is placed on the solar cell module 24 on the downstream side so as to be overlapped with a predetermined overlapping width in the same manner as the roof tiles.

As described above, according to the configuration of the second embodiment, since the overlapping pieces 11c are provided on the mounting members 25, the adjacent solar cell modules 24, 2 are provided.
As shown in FIG. 8 and FIG. 9, the four can be beautifully stacked with a predetermined overlapping width, which is preferable in terms of fire protection and waterproofing. Similarly, since the mounting members 25, 25 have a folded plate shape, as shown in FIG.
8 and the solar cell module 24 can also be beautifully overlapped with a predetermined overlapping width, which is preferable in terms of fire protection and waterproofing.

Third Embodiment FIG. 11 is a schematic sectional view showing the structure of a solar cell module according to a third embodiment of the present invention. The solar cell module 29 of the third embodiment is different from the above-described first embodiment in that the module main body 6a is installed so as to be floated from the inclined roof surface 10a by a predetermined amount.
That is, in the solar cell module 29 of this example, the upright pieces 30b, 30b of the attachment members 30, 30 are set to be slightly longer than the upright pieces 11b, 11b of the first embodiment (FIG. 3). Thus, according to the configuration of the third embodiment, the outer bottom surface 31 of the hollow metal case 8 and the inclined roof surface 10a
Thus, a ventilation layer (heat escape path) 32 is formed between them, so that overheating of the solar cell itself can be alleviated.

Fourth Embodiment FIG. 12 is a schematic sectional view showing the structure of a solar cell module according to a fourth embodiment of the present invention. In the solar cell module 33 of the fourth embodiment, a ventilation layer (a heat escape path) 36 is formed between the outer bottom surface 35 of the hollow metal case 34 of the module main body 33a and the inclined roof surface 10a. In this respect, the configuration is the same as that of the third embodiment described above (FIG. 11), but a large number of fins 3 are provided on the outer bottom surface 35 of the hollow metal case 34 in order to promote heat radiation into the ventilation layer 36.
Are different from the configuration of the third embodiment in that 7, 7,... Are provided. According to the configuration of the fourth embodiment, overheating of the solar battery cell itself can be further reduced.

(3) Modification of Embodiment The embodiment of the present invention has been described in detail with reference to the drawings.
The specific configuration is not limited to this embodiment, and the present invention includes any design change or the like without departing from the scope of the present invention. For example, the shapes of the hollow metal case 8 and the mounting member 11 are not limited to the shapes of the above-described embodiment. Further, the number of mounting members 11 is also arbitrary. In the above-described embodiment, the hollow metal case 8 and the mounting member 1
Although the one-piece molded product with 1 is used, these may be separately molded and then connected to each other using a fixture. In the above-described embodiment, the pair of mounting members 11, 1
1 along the direction orthogonal to the flow of the sloped roof surface 10a,
Although the case of opposing arrangement has been described, if necessary, a pair of mounting members 1 may be arranged along the flow direction of the inclined roof surface 10a.
You may make it arrange | position 1 and 11 facing each other.

In the above-described embodiment, the hollow case as a support member for the solar cells 9, 9,..., And the mounting members 11 for mounting and fixing the hollow case to the inclined roof surface 10a of the house 10 or the like. 11 has been described as being integrally formed of the same type of metal material, but these may be made of, for example, ceramics or asbestos cement instead of the metal material. Since ceramics and asbestos cement are similar to clay tiles and slate tiles, it is possible to use the conventional clay tile and slate tile construction methods as they are in the solar cell module construction method. The sense of incongruity disappears and the beauty of the roof can be enhanced. Also in the case of a solar cell module having a ceramic structure, a roofing material or a fire protection coating material thereunder can be omitted. In the case of a hollow ceramic case or a hollow asbestos cement case, since the material itself is a heat-defective conductor, overheating of the solar cell can be suppressed.

Further, the solar cell module of the present invention comprises:
Since it is necessary to previously attach mounting fixtures 20, 20,... Such as bolts to an inclined roof surface of a house or the like, it is particularly suitable to use a roof panel or a roof unit in a unit building that is factory-produced in advance. . In this case, if the solar cell module of the present invention is previously installed on a roof panel or a roof unit at a factory, on-site construction is simplified.

In the second embodiment, the mounting member 2
Although 5 and 25 have a folded plate (bent) shape, they may have a corrugated plate shape. Further, if an inert gas such as nitrogen is sealed and placed in a hollow case as a supporting member of the solar battery cells 9, 9,..., Oxidation and corrosion of the cell electrode portion in the hollow case can be prevented, and durability is improved. Can be improved.

[0035]

As described above, according to the structure of the present invention, the adhesive is used only for fixing the crystalline silicon solar cell to the inner bottom surface of the hollow case.
Since the inside of the hollow case is not completely filled with the adhesive, there is no danger that the entire solar cell module will burn violently even in the event of a fire. In addition, since the hollow case is made of metal, ceramics and asbestos cement with excellent fire resistance, it has a roofing material with fire resistance (building material)
It can also function as Therefore, when installing the solar cell module having the above configuration on an inclined roof surface of a house or the like,
Since the solar cell module itself has sufficient fire resistance, a roofing material or a fire-resistant covering material thereunder can be omitted. Further, since the hollow case made of a refractory material such as metal or ceramics plays a major role in strength, it is not necessary to increase the strength of the transparent plate, and the cost of the transparent plate can be reduced.
In addition, the solar cell module body is
Since it is directly attached and fixed to a sloped roof surface of a house or the like, a dedicated stand is not required. Therefore, the overall cost of the residential solar power generation system can also be reduced.

According to the second aspect of the present invention, since a ventilation layer (a heat escape path) is formed between the outer bottom surface of the hollow case made of a refractory material and the inclined roof surface 10a, the crystalline silicon solar cell is provided. It can alleviate its own overheating. According to the third aspect of the present invention, since the heat-dissipating fins are provided in the ventilation layer (heat escape path), overheating of the crystalline silicon solar cell itself can be further reduced.

According to the fifth aspect of the present invention, since the overlapping portion is provided on the mounting member, adjacent solar cell modules can be beautifully overlapped with each other with a predetermined overlapping width. It is also preferable in terms of waterproofing. Similarly, claim 4
According to the configurations described in (5) and (5), since the mounting member has a folded plate shape or a corrugated plate shape, the folded plate or the corrugated plate as the roofing material and the solar cell module are beautifully overlapped with a predetermined overlapping width. It is preferable on fire prevention and waterproof. According to the configuration of claim 6, since the inert gas such as nitrogen is sealed in the hollow case as the support member of the crystalline silicon solar cell, the oxidation of the cell electrode portion in the hollow case is performed. And corrosion can be prevented, and the durability can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a scene in which a solar cell module according to a first embodiment of the present invention is installed on an inclined roof such as a house.

FIG. 2 is a schematic plan view showing the configuration of the solar cell module.

FIG. 3 is a schematic plan view (a cross-sectional view taken along the line II of FIG. 2) illustrating a configuration of the solar cell module.

FIG. 4 is a connection explanatory diagram showing a state in which a plurality of the solar cell modules are connected by a connector.

FIG. 5 is a schematic sectional view showing a configuration of a solar cell module according to a second embodiment of the present invention.

FIG. 6 is a schematic perspective view showing a configuration of the solar cell module.

FIG. 7 is a schematic cross-sectional view showing a structure of an overlapping portion between the solar cell modules adjacent to each other in a direction orthogonal to the flow of the inclined roof surface.

FIG. 8 is a schematic perspective view showing a structure of an overlapping portion between the solar cell modules adjacent to each other in a direction orthogonal to the flow of the inclined roof surface.

FIG. 9 is a schematic perspective view showing a structure of a superposed portion between the solar cell modules adjacent to each other in the flow direction of the inclined roof surface.

FIG. 10 is a schematic cross-sectional view showing a structure of a superposed portion of the solar cell module and a folded plate as a roofing material.

FIG. 11 is a schematic sectional view showing a configuration of a solar cell module according to a third embodiment of the present invention.

FIG. 12 is a schematic sectional view showing a configuration of a solar cell module according to a fourth embodiment of the present invention.

FIG. 13 is a cross-sectional view illustrating an example of a conventional solar cell module.

[Explanation of symbols]

6, 24, 29, 33 Solar cell module 6a, 33a Module body (solar cell module body) 7 Glass plate (transparent plate) 8, 34 Hollow metal case (hollow case made of refractory material) 9 Solar cell (crystalline silicon) Solar cell) 10a Inclined roof surface 11, 25, 30 Mounting member 11a Fixed piece (fixing piece of mounting member) 11b, 30b Standing piece (standing piece of mounting member) 11c Overlapping piece (overlapping portion of mounting member) 12 Top opening (Upper opening of hollow case) 14 inner bottom surface (inner bottom surface of hollow case) 15 adhesive 19 mounting hole 31, 35 outer bottom surface (outer bottom surface of hollow case) 32, 36 ventilation layer (heat escape path) 37 fin

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshihiro Kondo 32 Wadai, Tsukuba, Ibaraki Prefecture Within Sekisui Chemical Co., Ltd. (72) Inventor Shota Moriuchi 22-22 Nagaikecho, Abeno-ku, Osaka City, Osaka Inside Sharp Corporation (72) Inventor Satoshi 22-22 Nagaikecho, Abeno-ku, Osaka City, Osaka Prefecture Sharp Corporation (56) References Special JP-A-7-202239 (JP, A) JP-A-5-55618 (JP, A) JP-A-7-26683 (JP, A) JP-A-7-150718 (JP, A) JP-A 8-316516 ( JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) E04D 13/18 H01L 31/042

Claims (11)

(57) [Claims] 1. A plurality of crystalline silicon solar cells are fixed with an adhesive to an inner bottom surface of a hollow case made of a refractory material whose upper surface opening is covered with a transparent plate and whose inside is sealed, with a light receiving surface facing the upper surface opening. A solar cell module body,
A solar cell module, comprising: a mounting member made of a refractory material for mounting and fixing the solar cell module body to an inclined roof surface. 2. A plurality of crystalline silicon solar cells are fixed with an adhesive to an inner bottom surface of a hollow case made of a refractory material whose upper surface opening is covered with a transparent plate and whose inside is sealed, with a light receiving surface facing the upper surface opening. A solar cell module body,
A solar cell module, comprising: a mounting member made of a refractory material for mounting and fixing the solar cell module body to the inclined roof surface in a state of being floated from the inclined roof surface by a predetermined amount. 3. The solar cell according to claim 1, wherein the refractory material used as the material of the hollow case and the mounting member is any one of metal, ceramics, and asbestos cement, or a combination thereof. module. 4. The solar cell module according to claim 1, wherein an outer bottom surface of the hollow case, in which a metal is selected as a refractory material, has a fin structure for heat radiation. 5. The solar cell module according to claim 1, wherein an inert gas is sealed in the hollow case. 6. A pair of said mounting members extending at any two opposing side ends of said rectangular hollow case, each of said mounting members being in contact with said inclined roof surface. A fixed piece, and a fixed piece that is raised from an edge of the fixed piece facing the solar cell module body side, and an upper edge of the raised piece is provided on one of the side end portions of the hollow case. 3. An attachment hole which is provided continuously with the edge and in which each fixing piece is provided with a mounting hole through which the mounting fixture is inserted.
The solar cell module as described. 7. The solar cell module according to claim 6, wherein the fixing piece is formed in a folded plate shape or a corrugated plate cross section. 8. In the pair of mounting members, the fixing piece of one mounting member and the fixing piece of the other mounting member are fitted vertically with a predetermined overlapping width and without changing the direction. The solar cell module according to claim 6, wherein a plurality of overlapping portions having a undulating shape are provided. 9. The fixing device is attached to a predetermined location on the sloped roof surface in advance with a shaft portion directed upward, and thereafter, the solar cell module is mounted on the sloped roof surface. The said solar cell module is attached to the said inclined roof surface by fitting the said mounting hole corresponding to the fixing | fixed piece of the said mounting member to the axial part of the said fixing tool. To install the solar cell module on the roof. 10. A method for mounting the solar cell module on the inclined roof surface of folded or corrugated roof, wherein the fixing piece formed in a folded plate shape or corrugated shape in cross section is a roofing material. Abuts on the board or corrugated plate in the fitted state,
The method according to claim 7, wherein after mounting the solar cell module on the folded plate or the corrugated plate, the solar cell module is fixed to the inclined roof surface. 11. A method for mounting a plurality of solar cell modules side by side on a sloped roof surface, wherein the overlapping portion provided on a fixing piece of one mounting member of any one of the solar cell modules, Fixing the plurality of solar cell modules to the inclined roof surface in a state where the overlapping portions provided on the fixing pieces of the corresponding mounting members of the solar cell modules are vertically overlapped with each other in a fitted state. The method for mounting a solar cell module on a roof according to claim 8.