JPH09100514A - Solar cell integrated soundproofing wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need to prepare a rack which is designed to support a solar cell panel only by setting up fixedly and integrally a solar cell on a curved area or an inclined area of a soundproofing wall on a road side. SOLUTION: A steel material-made post is erected on a road side, thereby forming a vertical area 10a and inclined areas 10b, 10c and 10d on the road side. A steel plate 11 provided with an uneven area 12 is mounted on the post 10 so as to attain a soundproofing effect, thereby preparing a soundproofing wall 8. The steel plate 1 is molded in bent or curved shape along the shorter distance direction. A solar cell module is set up fixedly and integrally on the soundproofing wall which supports the post area 10c. The solar cell is an amorphous solar cell formed on the stainless steel board having flexibility and forms an uneven area on the surface of a light receiving area of the solar cell module where the diffusion reflectance on the surface is designed to exceed 80%. Therefore, this construction makes it possible to cut down installation cost and provide high electric output and enhance the outward appearance and solve light hazard problems that reflected light is dazzling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof wall, and more particularly to a soundproof wall integrally provided with a solar cell provided on the side of a road or an iron road.

[0002]

2. Description of the Related Art Conventionally, solar cells have been widely used as a clean and non-depleting energy supply source, and various researches have been carried out on the solar cell itself. The development of photovoltaic modules that are well suited for installation in places is being actively pursued.

Among them, as a use of installing a solar cell, installing a solar cell on a soundproof wall provided on a side portion of a road or an iron road, especially on a side portion of a highway has been widely studied. This is because, considering the total length of the expressway, there will be a huge number of places where solar cells can be installed.

A conventional installation method for installing a solar cell on a soundproof wall will be briefly described below.

FIG. 16 is a sectional view showing this conventional example.

As shown in FIG. 16, this conventional example has a soundproof wall 4
Stand part 4 for installing the solar cell panel 48 on top of 7.
9 is provided, and the solar cell panel 48 is installed and fixed thereto.

In this case, as can be seen from FIG. 16, since the solar cell panel itself receives a large wind load, a structural material capable of supporting the large wind load is required. To make.

Therefore, the soundproof wall needs to support a very large weight of the solar cell panel and its pedestal, and is often made of concrete.

[0009]

In the above conventional installation method, as can be seen from the above description, a strong soundproof wall and a pedestal portion having very strong structural strength are required for installing the solar cell, There is a problem that the construction cost and the installation cost are very high.

Further, such a soundproof wall and a pedestal part are inevitably formed as a structure having a heavy weight in order to increase the structural strength and make the structure sturdy, which may give a feeling of pressure to the occupants of a vehicle traveling on the road. There is also a problem.

In addition, there is a problem in that it is manufactured by a design with an emphasis on structural strength, and in many cases it does not match the scenery around the road.

Further, when there is a demand to install a solar cell on a soundproof wall on which an existing ordinary solar cell is not installed, according to the above conventional method, the soundproof wall is provided with sufficient structural strength. There is also a problem that they do not have it and must be demolished and newly manufactured.

[0013]

The present invention solves the above problems and achieves the above objects. In a soundproof wall provided on the side of a road or an iron road, the soundproof wall is
It has a vertically installed portion and a roadside curved or inclined portion, and the solar cell is integrally installed and fixed to at least a part of the roadside curved or inclined portion. Characterize.

Further, in a soundproof wall in which a wall provided on a side portion of a road or an iron road has a curved shape as a whole, a solar cell is integrated with at least a part of a portion whose curved surface outside faces upward. It is characterized by being installed and fixed in.

In the solar cell-integrated soundproof wall having the above-described structure, the installation and fixing angle of the solar cell integrally installed and fixed to the soundproof wall is the optimum installation and fixing angle with which the solar cell can obtain the highest output. Therefore, it is preferable to set the curvature or the inclination angle of these portions with respect to the portion that is curved or inclined toward the road side or the portion where the outside of the curved surface portion faces upward.

Here, the solar cell is preferably a flexible solar cell prepared by using a flexible photovoltaic element, and a transparent resin film is provided on the light receiving surface. More preferably, an amorphous silicon solar cell element formed on a flexible stainless steel substrate is used as the photovoltaic element, and the photovoltaic element is resin-sealed with a translucent resin.

Furthermore, it is preferable that the light receiving surface of the solar cell has irregularities and the diffuse reflectance is 80% or more.

Further, it is preferable that a metal reinforcing plate is provided on the back side of the light receiving surface, a bending process is performed on the metal reinforcing plate, and the solar cell is installed and fixed using the bending process portion.

Further, in the solar cell integrated soundproof wall having the above structure, it is preferable that at least a part of a portion where the solar cell is not integrally installed and fixed is made of a transparent material,
More preferably, the transparent material is a polycarbonate resin.

Furthermore, when an amorphous silicon solar cell element is used for the photovoltaic element, the soundproof wall of a considerable portion on which the solar cell is integrally installed and fixed has a function of substantially insulating and keeping the solar cell adiabatic. It is preferable that the fixed structure of the solar cell has a closed space between the solar cell and the soundproof wall, or the soundproof wall is made of a member having a heat insulating property. It is preferably realized by

(Operation) In the invention according to claims 1 and 2, in a soundproof wall provided on a side portion of a road or an iron road, a portion curved or inclined toward the road side or the entire wall has a curved shape. In the soundproof wall that is installed, the solar cell is integrally installed and fixed to at least a part of the portion where the curved surface outside faces upward. There is no need to make parts. Therefore, the construction cost and the installation cost can be significantly reduced.

Further, since it can be finished in a much lighter weight than the conventional example, it does not give a feeling of pressure to the occupants of a vehicle traveling on the road.

Moreover, since the design load on the structural strength is considerably reduced, the degree of freedom in design is increased and it is not necessary to fabricate a road soundproof wall that impairs the scenery around the road.

Further, since reinforcement of structural strength for mounting the solar cell is not necessary in many cases, retrofitting is possible for a large number of existing soundproof walls.

Further, since the solar cell is installed and fixed in a portion that is curved or inclined toward the road side, or in a portion where the curved surface outside faces upward, the soundproof wall is installed and fixed in a vertical portion. Compared with the above, sunlight can be effectively utilized and a high electric output can be obtained.

In the invention according to claim 3, the curvature or inclination angle of the curved or inclined portion of the above-mentioned road law or the portion of which the outside of the curved surface portion faces upward is By designing and manufacturing the solar cell so as to have the optimum installation fixed angle, it is possible to obtain the output that is considered to be the highest with respect to the amount of power generation of the solar cell in one year.

In the invention according to claim 4, the solar cell is
By using a flexible solar cell manufactured by using a flexible solar cell element, even a curved soundproof wall can be easily installed and fixed integrally.

Since a special fixing member is not used to fix and fix it in a curved shape, the installation work is simple.

Further, since the solar cell obediently follows the curved surface shape of the soundproof wall, it is possible to manufacture the same thing as a normal soundproof wall in terms of design, and the appearance is beautiful, which is very preferable in view of the scenery.

Further, the flexibility of the solar cell prevents the solar cell from cracking even when a large vibration is transmitted from the soundproof wall, and there is no fear of impairing the power generation capacity.

In addition, the light pollution problem that the reflected light on the surface of the solar cell is dazzling can be solved for the following reasons. For example, when a flat-plate solar cell module such as glass is installed, the reflected sun light may be dazzling and unpleasant to the occupants of a vehicle traveling in the road or nearby residents depending on the angle. However, for a soundproof wall having a curved surface shape, the surface of the solar cell module, which is installed and fixed in a curved surface shape in accordance with the curved surface shape of the soundproof wall by utilizing its flexibility, becomes a curved mirror. Therefore, there is no direct reflection, and there is no fear of giving a person the discomfort of being dazzling.

In the invention according to claim 5, a light-transmitting resin film is provided on the surface of the light-receiving surface, and the amorphous silicon solar cell element formed on the flexible stainless steel substrate is resin-sealed with the light-transmitting resin. As a result, a thin and lightweight solar cell can be manufactured. By using such a solar cell, there are less restrictions on the method of installing and fixing the solar cell on the soundproof wall, and the soundproof wall has a wider degree of freedom in selection of its material, shape, etc., and is manufactured in various designs. be able to.

In the invention according to claim 6, since the reflected light can be further scattered by forming the unevenness on the surface of the light receiving surface, there is no fear of giving a person an uncomfortable feeling of being dazzling.

In the invention according to claim 7, the metal reinforcing plate is provided on the back surface of the light receiving surface of the solar cell, so that the translucent resin is cut and the solar cell is not destroyed. . As a result, when installing and fixing the solar cell and the soundproof wall, by fixing only the peripheral portion of the solar cell, sufficient installation strength can be obtained.

Therefore, the fixing member can be a simple member, and the installation work thereof becomes very easy.

In the invention according to the eighth aspect, since the solar cell is installed and fixed by using the bent portion, the installation and fixing work is very easy and a sufficient installation strength can be obtained.

In the invention according to claim 9, since at least a part of the portion where the solar cell is not integrally installed and fixed is made of a transparent material, the occupant of the vehicle can get a view and the soundproof wall is used. The problem of feeling oppressive also disappears.

According to the tenth aspect of the invention, the transparent soundproof wall portion is formed of polycarbonate resin,
It becomes a soundproof wall with excellent impact resistance.

In the invention according to claim 11, since the amorphous silicon solar cell element is used for the photovoltaic element,
The soundproof wall of the considerable part that installs and fixes the solar cells integrally
Substantially, it has a function of keeping the solar cell adiabatic and heat-retaining, it is possible to reduce the deterioration of the amorphous silicon solar cell element, and it is possible to obtain a high power generation capacity.

To briefly explain, since the back surface of the solar cell is insulated, the solar heat received by the solar cell is not easily dissipated, but the solar cell is kept warm. As a result, it is possible to control deterioration of the amorphous silicon solar cell element, and it is possible to obtain a higher power generation capacity than when the solar cell is used without being kept warm.

According to the twelfth aspect of the present invention, since the structure for installing and fixing the solar cell has a closed space between the solar cell and the soundproof wall, the deterioration of the amorphous silicon solar cell element can be reduced. In addition to being able to obtain high power generation capability, the soundproofing of the soundproof wall is also very excellent.

According to the thirteenth aspect of the invention, since the soundproof wall is made of a member having a heat insulating property, the heat insulation of the solar cell can be very easily maintained simply by installing and fixing the solar cell. The same action as above can be obtained.

[0043]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS.

1 and 2 are a perspective view and a sectional view taken along line AA 'of a solar cell-integrated soundproof wall according to an embodiment of the present invention.

The structure of the solar cell module 1 used in the solar cell-integrated soundproof wall of this embodiment will be described with reference to FIG. The solar cell module 1 of the present invention comprises a solar cell element 2 resin-sealed with a translucent resin 3, a glass 4 on the light-receiving surface side surface, and a fluororesin film /
It has a back surface protective film 5 having a three-layer structure of aluminum foil / fluororesin film, which are adhesively laminated.

Here, as a method of adhesively laminating these, for example, in this example, the following method is used. A sheet-shaped EVA (ethylene-vinyl acetate copolymer) as a translucent resin, a solar cell element, the same EVA, and a back surface protective film are sequentially laminated on glass, and while defoaming under pressure 150
Adhesive lamination was achieved by melting EVA at ° C.

An aluminum frame 6 was adhered to the periphery using a silicon sealant (not shown) to produce a solar cell module 1. The aluminum frame 6 is provided with a mounting hole in advance, and using this, the solar cell module 1 is integrally grounded and fixed to the soundproof wall 8 by the drill screw 7.

The soundproof wall 8 was manufactured as follows. First,
The base 9 was made of concrete on the side of the road, and the pillars 10 made of steel were placed on it. This pillar 10 has a portion 10a installed vertically and a portion 1 inclined to the road side.
0b, 10c, 10d. A steel plate 11 having an uneven portion 12 for the purpose of soundproofing is attached to the pillar 10,
A soundproof wall 8 was produced. Further, the steel plate 11 is formed in a bent shape along the lateral direction of the plate. Also, at this time,
The shape is not limited to the bent shape and may be a curved shape.

At this time, as can be seen from FIG. 1, the pillar 10c
The solar cell module 1 was integrally installed and fixed to the soundproof wall portion supported by the section.

As described above, in the present embodiment, since it is not necessary to fabricate a frame for installing and fixing the solar cell, the construction cost and the installation cost are lower than the conventional soundproof wall having the solar cell. We were able to reduce significantly. In addition, since it is not necessary to increase the strength of the soundproof structure due to the wind load that the solar cell receives, it can be made light using a steel plate,
I was able to prevent the occupants of the cars on the road from feeling pressured. Further, by installing the solar cell module 1 on the soundproof wall portion supported by the pillar 10c portion, it is possible to effectively utilize sunlight and obtain a high electric output.

The present invention is not limited to the examples described above, and each constituent element will be described below.

(Solar Cell) The solar cell of the soundproof wall integrated with the solar cell of the present invention is not particularly limited as long as it has a structure that can be integrally installed and fixed to the soundproof wall, but is flexible. It is preferable that the solar cell has

Since the solar cell has flexibility, the above-mentioned operation according to the invention of claims 4 to 5 or 7 to 8 can be obtained.

(Soundproof Wall) The structure of the soundproof wall of the solar cell integrated type soundproof wall of the present invention is not particularly limited, but it is preferable to use a lightweight material such as a steel plate or a resin plate. By making a soundproof wall with a lightweight material,
It is possible to manufacture a soundproof wall that does not give a feeling of pressure to an occupant of a vehicle traveling on a road, which is a feature of the present invention.

Further, it is preferable to form the soundproof wall with a transparent material such as glass because it gives a view to the occupants of the vehicle.

Further, among the transparent materials, it is more preferable to use the polycarbonate resin because it is possible to produce a soundproof wall which is lightweight and has excellent impact resistance.

In addition, when an amorphous silicon solar cell element is used as the photovoltaic element, the soundproof wall corresponding to a portion where the solar cell is integrally installed and fixed has a function of substantially keeping the solar cell adiabatic. It is preferable to have. As a result, the deterioration of the amorphous silicon solar cell element can be reduced as described above, and a high power generation capacity can be obtained.

Further, since the structure for installing and fixing the solar cell is a structure having a closed space between the solar cell and the soundproof wall, deterioration of the amorphous silicon solar cell element can be reduced and high power generation can be achieved. In addition to the ability to be obtained, the soundproofing of the soundproof wall is also very excellent, which is more preferable.

Further, since the soundproof wall is made of a member having a heat insulating property, the solar cell can be insulated and kept warm very easily only by installing and fixing the solar cell, and the same operation as described above can be achieved. In addition, it is possible to obtain a member having this heat insulating property with a thermal conductivity of 0.3 kcal / m.
A heat insulating member having a temperature of h ° C. or less is preferable because a thinner member can ensure sufficient heat insulating and heat retaining properties, and thus the degree of freedom in designing and manufacturing the soundproof wall can be expanded.

(Photovoltaic Element) The type of the photovoltaic element of the solar cell-integrated soundproof wall of the present invention is not particularly limited, but is preferably a flexible photovoltaic element, and particularly preferably. , An amorphous silicon solar cell formed on a stainless steel substrate.

By using a flexible photovoltaic element, a flexible solar cell can be produced, which has the above-mentioned effects and is more preferable.

(Translucent Resin Film) The translucent resin film used for the solar cell surface of the solar cell-integrated soundproof wall of the present invention preferably has weather resistance, and for example, a fluororesin film is suitable. ing.

Further, it is preferable that the elongation rate of the film is 250% or more so that breakage and cracks do not occur in the film when it is stretched during bending and forming irregularities on the light receiving surface. Below 250%,
There is a risk of cracks when the solar cell is bent.

(Translucent Resin: For Sealing) Examples of the translucent resin of the solar cell of the present invention, which is a solar cell-integrated soundproof wall, include ethylene-vinyl acetate copolymer (EVA), polyvinyl butyrol, Examples of the silicone resin include, but are not limited to:

(Metal Reinforcement Plate) The metal reinforcement plate on the back surface of the solar cell of the solar cell-integrated soundproof wall of the present invention preferably has excellent weather resistance, corrosion resistance, and bending workability.
Examples thereof include galvanized steel sheets, steel sheets having a weather-resistant substance such as fluororesin and vinyl chloride thereon, and stainless steel sheets.

[0066]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples.

(Embodiment 1) In the solar cell integrated soundproof wall of this embodiment, the entire soundproof wall has a curved shape, and the solar cell is integrally installed in a portion where the curved surface outside faces upward. It is characterized by being fixed.

The solar cell-integrated soundproof wall of this embodiment will be described below with reference to FIGS. 3 and 4, but the portions not particularly described are the same as those of the embodiment.

FIGS. 3 and 4 are a perspective view and a sectional view taken along line BB 'of the solar cell integrated soundproof wall according to the embodiment of the present invention, respectively.

In FIG. 4, the structure of the solar cell module 13 used for the solar cell-integrated soundproof wall of this example is the same as that of the embodiment and is as follows. The solar cell module 13 of the present invention is obtained by sealing the solar cell element 2 with a translucent resin 3, and a glass 4 on the light-receiving surface side,
On the back side of the light-receiving surface, there is a back surface protective film 5 having a three-layer structure of fluororesin film / aluminum foil / fluororesin film, which are adhesively laminated.

However, the aluminum frame 14 has a special shape in order to be integrally installed and fixed to the curved soundproof wall 15 of this embodiment. A portion 14a of the aluminum frame located at the end of the solar cell module 13 extends downward. This portion was inserted into a mounting hole 16 provided in advance in the soundproof wall, and the solar cell module 13 was integrally installed and fixed to the soundproof wall 15 by a fixing member 17 and a drill screw 18.

The soundproof wall 15 of this embodiment was manufactured as follows. A concrete base 9 was prepared, and a steel member was bent to form a pillar 19 and a beam 20 made of the same steel material was assembled. Then, a steel plate 11 having an uneven portion 12 for the purpose of soundproofing is provided in the same manner as in the embodiment example.
Was attached to produce a soundproof wall 15.

As described above, the solar cell integrated soundproof wall of this example has a curved soundproof wall as a whole, but the solar cell is integrally formed in a portion where the outside of the curved surface faces upward. By installing and fixing, it was possible to obtain the same effect as that of the above-described embodiment.

(Embodiment 2) The solar cell-integrated soundproof wall of the present embodiment is optimally installed and fixed in such a manner that the inclination angle of the portion of the soundproof wall which is inclined toward the road side can obtain the highest output for the solar cell. It is characterized in that it is manufactured so as to form an angle.

The solar cell-integrated soundproof wall of this embodiment will be described below with reference to FIGS. 5 and 6, but the portions not particularly described are manufactured in the same manner as in the embodiment.

FIGS. 5 and 6 are a perspective view and a sectional view taken along line CC 'of the solar cell-integrated soundproof wall of this embodiment, respectively.

As can be seen from FIG. 5, the soundproof wall 24 of this embodiment has a vertically installed portion 24a and a roadside inclined portion 24b. The inclination angle of the inclined portion 24b is set as follows so that the solar cell can obtain the highest output. In this embodiment, Nara city is installed on the south side of the road running east and west, and from the measured data in the past, the optimum inclination angle in Nara city is 2 in such a case.
It is known to be 8.6 degrees. Therefore, the design and manufacture were performed with the inclination angle of the inclined portion 24b of the soundproof wall set to 28.6 degrees. By the way, the inclination angle of 28.6 degrees means that the inclination angle is 28.6 degrees above the horizontal position.

By the above-mentioned fabrication, it was possible to obtain a desired installation angle at which it is considered that the amount of power generation of the solar cell in one year becomes the highest.

Further, in FIG. 6, the solar cell module 21 of this example was fixed to a supporting member 22 made of a steel material having a hat-shaped cross section with a drill screw (not shown). Similarly, the steel plate 23 was also fixed to the support member 22 to produce the soundproof wall 24. As described above, in this example, the solar cell module is not installed and fixed on the steel plate serving as the soundproof wall material as in the above example, but is installed and fixed on the support member so that the solar cell module is integrally installed and fixed on the soundproof wall. There is. As a result, the solar cell module 21 is fixed to the support member 22 that is structurally stronger than the steel plate portion 23, so that vibrations that may cause a failure such as cracking of the solar cell module 21 are significantly reduced. We were able to.

Further, since the steel plate is not required in the portion where the solar cell module is installed, the cost can be reduced accordingly.

(Embodiment 3) The solar cell-integrated soundproof wall of this embodiment is characterized by using a flexible solar cell.

Hereinafter, the solar cell-integrated soundproof wall of this embodiment will be described with reference to FIGS. 7 and 8, but the parts not particularly described are manufactured in the same manner as the embodiment.

FIG. 7 and FIG. 8 are a sectional view of the solar cell-integrated soundproof wall and a partial sectional view of the solar cell module of this embodiment, respectively.

First, the structure of the solar cell module of this embodiment will be described with reference to FIG. In the solar cell module 25 of this embodiment, an amorphous silicon solar cell element 26 formed on a flexible stainless substrate is used as a transparent resin 2.
7 is resin-sealed. A translucent resin film 28 is used on the front surface of the light-receiving surface, and a resin film 29 is used on the rear surface of the light-receiving surface.

Amorphous silicon solar cell element 26
Was manufactured by forming an amorphous silicon semiconductor layer on a stainless steel substrate having a thickness of 0.125 mm.
The translucent resin 27 is a sheet of EVA (ethylene-vinyl acetate copolymer) having a thickness of 0.95 mm on the front and back of the solar cell element 26, and the translucent resin film 28 is a non-stretched type. A 0.05 mm thick fluororesin film is used as the backside resin film 29 with a thickness of 0.15.
mm PET films were used for the production.

As can be seen from the above description, the solar cell module of this embodiment has flexibility due to its structure. Due to this flexibility, the solar cell module is directly installed and fixed integrally on the curved soundproof wall as shown in FIG. 7 according to its shape.

In this example, the solar cell module was fixed as follows. On the back surface side of the solar cell module 25, a butyl rubber tape 31 having a width of 2.0 mm and a thickness of 1.5 mm and having double-sided adhesiveness was attached with 40 mm at each of the upper and lower ends as shown in FIG. 7. Then, using the adhesive force of this butyl rubber tape, the solar cell module 25
Was fixed to the soundproof wall 30. On top of that, drill screw 3
It was also mechanically fixed by 2.

As described above, the mechanical fixing with the screw and the fixing with the adhesive force of the tape are used together because the solar cell module of this embodiment does not have sufficient structural strength. This is because if only the peripheral portion of the solar cell module is fixed, the translucent resin and the resin film may be broken and the solar cell may be broken.

The solar cell-integrated soundproof wall of the present example produced in this manner can be designed in the same manner as a normal soundproof wall because the solar cell obeys the curved shape of the soundproof wall. The top is beautiful and the finish is very pleasing.

Further, since the solar cell has flexibility, the solar cell is not cracked even when a large vibration is transmitted from the soundproof wall, and there is no fear of impairing the power generation capacity.

Moreover, as can be seen from FIG. 7, the surface of the solar cell module of this embodiment is a curved mirror. Therefore, as described above, the reflected light on the surface of the solar cell module is not directly reflected, and there is no fear of giving a person an uncomfortable feeling of being dazzling.

Example 4 The solar cell-integrated soundproof wall of this example is characterized by using a solar cell having irregularities formed on the surface of the solar cell on the light receiving surface side.

The solar cell-integrated soundproof wall of this embodiment will be described below with reference to FIG. 9, but the parts not particularly described are manufactured in the same manner as in the third embodiment.

As shown in the figure, the solar cell module 33 of this embodiment is produced by adhesively laminating using the same material as that of the third embodiment. Then, an uneven shape was formed on the surface of the light receiving surface.

As described above, pressure defoaming and heating are carried out after the respective materials are sequentially laminated, but when they are laminated, the aluminum is placed directly below the translucent resin film 28 (fluorine resin film). A mesh sheet (16 × 18 mesh, wire diameter 0.011 inch) was placed. As a result, irregularities 34 were formed on the surface of the light-receiving surface of the solar cell module 33 that was manufactured by adhesive lamination.

When the unevenness was measured by a contact type surface roughness meter, the average value of the height difference between the adjacent concave and convex portions was 240.
.mu.m, the average value between adjacent recesses and the peaks of the recesses is 3.
4 mm. At this time, using an integrating sphere type reflection spectrophotometer, the ratio between the total reflection on the module surface and the diffuse reflection light was obtained. As a result, when the total reflected light was 100, the diffuse reflected light was 80 in this example.

This solar cell module was actually installed at various angles in the flat plate state against sunlight, and it was judged whether it was dazzled or not dazzled by human eyes. I was able to get it.

As described above, it is confirmed that even if the solar cell module of this embodiment is a flat plate, the reflected light on the surface of the solar cell module is scattered and there is no fear of giving a person an uncomfortable feeling of glare. I was able to. Moreover, in this embodiment, as in the case of the third embodiment, the curved mirror is installed, so that the above-mentioned worry is eliminated completely.

(Embodiment 5) The solar cell integrated soundproof wall of this embodiment is characterized by using a flexible solar cell having a metallic reinforcing plate on the back surface side of the solar cell.

The solar cell-integrated soundproof wall of this embodiment will be described below with reference to FIG. 10, but the parts not particularly described are manufactured in the same manner as in the third embodiment.

The solar cell module 36 of this example is the same as the solar cell module 25 of Example 3 except that the resin film on the back side (PET film having a thickness of 0.15 mm) is used.
Was manufactured in exactly the same manner except that a metal reinforcing plate (galvanium steel plate having a thickness of 0.4 mm) was used instead of.

By using this metal reinforcing plate, it is possible to eliminate the concern that the translucent resin and the resin film possessed by the solar cell module of Example 3 described above are broken and the solar cell is broken. It was

Therefore, in this embodiment, by fixing only the peripheral edge of the solar cell module without fixing the butyl rubber tape by the adhesive force, it is possible to integrally install and fix the soundproof wall 35. . Specifically, it was set and fixed as follows. First, the fixing member 37 was previously attached to the upper end of the soundproof wall 35. The upper end of the solar cell module was inserted into the gap between the fixing member 37 and the soundproof wall 35, and the lower end of the solar cell module was fixed with a drill screw 32.

As can be seen from the above description, the installation work is much easier than in the third embodiment.

Example 6 The solar cell-integrated soundproof wall of this example uses a flexible solar cell having a metallic reinforcing plate on the back side of the solar cell, and is bent. It is characterized in that the solar cell module is installed and fixed using the bent portion.

The solar cell-integrated soundproof wall of the present embodiment will be described below with reference to FIG. 11, but the parts not particularly described are manufactured in the same manner as in the fifth embodiment.

The solar cell module 38 of this example was manufactured in the same manner as the solar cell module of Example 5 described above, and then the upper end portion was bent into a U-shape.

The installation and fixing method was as follows. The U-shaped bent portion 39 was hooked on the upper end of the soundproof wall 35 as shown in FIG. 11, and the lower end of the solar cell module was fixed by a drill screw 32.

As can be seen from the above description, the installation work of this embodiment is easier than that of the fifth embodiment.

(Embodiment 7) The solar cell-integrated soundproof wall of this embodiment is characterized in that a part of the portion where the solar cell is not installed and fixed is formed of glass.

The solar cell-integrated soundproof wall of this embodiment will be described below with reference to FIG. 12, but the portions not particularly described are manufactured in the same manner as in the sixth embodiment.

A part of the vertically installed portion of the soundproof wall 35 of this embodiment was formed of glass 40. This allows the passengers of the car to have a view and is no longer oppressed by the noise barrier.

(Embodiment 8) In the solar cell integrated soundproof wall of this embodiment, the entire curved soundproof wall is formed of a transparent polycarbonate resin plate, and the solar cell is integrally installed and fixed thereto. Characterize.

The solar cell-integrated soundproof wall of this embodiment will be described below with reference to FIG. 13, but the parts not particularly described are manufactured in the same manner as in the seventh embodiment.

The soundproof wall 41 of this embodiment is formed of a transparent polycarbonate resin plate having a thickness of 5 mm. As a result, similarly to the seventh embodiment, the occupant of the vehicle can get a view and is not squeezed by the soundproof wall. In addition, the impact resistance was greatly improved compared to glass.

(Example 9) The solar cell-integrated soundproof wall of this example uses an amorphous silicon solar cell element as a photovoltaic element, and the solar cell module is integrally installed and fixed to the solar cell. The battery is characterized in that it has a closed space between the solar cell and the soundproof wall by being installed and fixed on the soundproof wall via the installation fixing member.

Hereinafter, the solar cell-integrated soundproof wall of this embodiment will be described with reference to FIG. 14, but the parts not particularly described are manufactured in the same manner as in the first embodiment.

The solar cell module 42 of this embodiment is the same as that of the first embodiment except that an amorphous silicon solar cell element is used as the photovoltaic element and that the shape of the aluminum frame is the same as that of the embodiment example. It was made. The soundproof wall was also manufactured in the same manner as in Example 1.

The solar cell module 42 was installed and fixed by a drill screw 34 with an installation and fixing member 43 made of wood wool cement material interposed. By interposing the installation fixing member 43, the flat solar cell module 42 is easily installed and fixed integrally with the soundproof wall 35 having a curved shape.

At this time, at the same time, as can be seen from FIG. 14, a closed space 44 is formed by the solar cell module 42, the soundproof wall 35, and the installation fixing member 43. This closed space 4
Since the installation fixing member 43 made of air and wood wool cement material enclosed in 4 has a heat insulating property, the solar cell module 43 is insulated and kept warm.

For this reason, the solar cell module of the present example has less deterioration of the amorphous silicon solar cell and higher power generation than the similar solar cell module installed and fixed by the installation and fixing method that does not keep the heat insulating. Got the ability. Specifically, a similar solar cell module is installed and fixed to the same soundproof wall at exactly the same place as in the present embodiment, and a stainless steel member is interposed so that a closed space is not formed. About fixed and installed 1
The following results were obtained by comparing the amount of power generated in each year. The amount of electric power generated per year is 1 though the product is installed and fixed with a stainless steel member interposed so that a closed space is not formed.
If 00 is set and fixed as in this embodiment, it is 1
It was 05, and an improvement effect of 5% in the amount of generated power could be obtained.

(Embodiment 10) The solar cell-integrated soundproof wall of the present embodiment is characterized in that the soundproof wall is made of a heat insulating material in a portion where the solar cell is integrally installed and fixed.

The solar cell-integrated soundproof wall of this embodiment will be described below with reference to FIG. The solar cell module 45 of this example was manufactured in the same manner as in Example 3 using an amorphous silicon solar cell element as a photovoltaic element. Regarding the soundproof wall, a 15 mm-thick ALC plate 46 (having a thermal conductivity of 0.13 k) was mounted on the portion where the solar cell module 45 was placed.
(cal / mh ° C) was used, and the same procedure as in the example of the embodiment was performed. Then, the solar cell module 45 and the ALC plate 46
Was fixed with a drill screw 34.

The solar cell of the present embodiment described above is compared with the case where it is installed and fixed on the soundproof wall made of steel plate.
Deterioration of amorphous silicon solar cells was reduced, and high power generation capacity was obtained. Specifically, the amount of power generated in one year is compared between the same solar cell module installed and fixed as in this example and the one installed and fixed on a soundproof wall made of steel plate at exactly the same place. Then, the result was as follows. Assuming that the power generation amount per year for a soundproof wall made of steel plate is 100,
104 was installed and fixed as in this example, and an improvement effect of 4% in the power generation amount could be obtained.

[0125]

According to the first and second aspects of the present invention, in a soundproof wall provided on a side portion of a road or an iron road, a portion curved or inclined toward the road side or the entire wall has a curved shape. In the soundproof wall, the curved surface of the solar battery is integrally installed and fixed on at least a part of the outer surface of the wall facing upward. No longer needed to make. As a result, there is no need to fabricate a strong soundproof wall with high structural strength, and construction and installation costs have been significantly reduced.

Further, since it is not necessary to increase the structural strength just because of the wind load applied to the solar cell, the construction cost and the installation cost can be greatly reduced as in the above.

Further, since it can be finished in a feeling that is considerably lighter than that of the conventional example, it does not give a feeling of pressure to an occupant of a vehicle traveling on the road.

In addition, since the design load on the structural strength is considerably reduced, the degree of freedom in design is expanded, and a road soundproof wall that damages the scenery around the road can be manufactured in the city.

Further, since reinforcement of structural strength for mounting the solar cell is not necessary in many cases, retrofitting is possible for a large number of existing soundproof walls.

Further, since the solar cell is installed and fixed in a portion that is curved or inclined toward the road side, or in a portion in which the outside of the curved surface faces upward, the soundproof wall is installed and fixed in a vertical portion. Compared to the above, it was possible to effectively utilize sunlight and obtain a high electric output.

According to the third aspect of the present invention, the curvature or inclination angle of these portions with respect to the portion that is curved or inclined toward the road side or the portion where the outer side of the curved surface faces upward is determined by By designing and manufacturing the battery so that it has an optimal installation fixed angle, it was possible to obtain the output considered to be the highest with respect to the amount of power generation of the solar cell in one year.

In the invention according to claim 4, the solar cell is
By using a flexible solar cell manufactured using a flexible solar cell element, it was possible to easily install and fix it integrally even to a curved soundproof wall. .

Since a special fixing member is not used to set and fix the curved surface, the installation work is simplified.

Further, since the solar cell obediently follows the curved surface shape of the soundproof wall, it is possible to manufacture the same thing as a normal soundproof wall in terms of design, the appearance is beautiful, and it is very preferable in view.

Further, since the solar cell has flexibility, the solar cell is not cracked even when a large vibration is transmitted from the soundproof wall, and there is no fear of impairing the power generation capacity.

Moreover, as described above, the problem of light pollution that the reflected light on the surface of the solar cell was dazzling could be solved.

In the invention according to claim 5, a transparent resin film is provided on the surface of the light receiving surface, and the amorphous silicon solar cell element formed on the flexible stainless steel substrate is resin-sealed with the transparent resin. As a result, a thin and lightweight solar cell could be manufactured. By using such a solar cell, there are less restrictions on the method of installing and fixing the solar cell on the soundproof wall. As a result, the degree of freedom in selecting the material, shape, etc. of the soundproof wall has expanded, and it has become possible to manufacture various kinds of designs.

In the invention according to claim 6, the unevenness is formed on the surface of the light-receiving surface, so that the reflected light can be scattered, and there is no fear of giving the person the unpleasant feeling of being dazzling. As described above, even when the solar cell surface cannot have a sufficiently curved surface due to various reasons such as that the soundproof wall is not a curved surface, it is possible to scatter reflected light by forming irregularities on the light receiving surface. I was able to do it, and I no longer had to worry about it being dazzling.

In the invention according to claim 7, since the reinforcing plate made of metal is provided on the back surface of the light receiving surface of the solar cell, the translucent resin is cut and the solar cell is not destroyed. It was As a result, when installing and fixing the solar cell and the soundproof wall, it was possible to obtain sufficient installation strength by fixing only the peripheral portion of the solar cell.

Therefore, the fixing member can be a simple member, and the installation work thereof is very easy.

In the invention according to claim 8, since the solar cell is installed and fixed by using the bent portion, the installation and fixing work is very easy, and sufficient installation strength can be obtained.

In the invention according to claim 9, at least a part of the portion where the solar cell is not integrally installed and fixed is made of a transparent material, so that the occupant of the vehicle can get a view and the soundproof wall is used. The problem of feeling oppressive has disappeared.

According to the tenth aspect of the present invention, the transparent soundproof wall portion is formed of polycarbonate resin.
It became a soundproof wall with excellent impact resistance.

In the invention according to claim 11, when an amorphous silicon solar cell element is used as the photovoltaic element,
The soundproof wall of the considerable part that installs and fixes the solar cells integrally
Substantially, by having the function of keeping the solar cell adiabatic and heat insulating, it was possible to reduce the deterioration of the amorphous silicon solar cell element and obtain a high power generation capacity.

According to the twelfth aspect of the invention, since the structure for installing and fixing the solar cell has a closed space between the solar cell and the soundproof wall, deterioration of the amorphous silicon solar cell element is reduced. In addition to being able to obtain high power generation capability, the soundproofing of the soundproof wall has also been greatly improved.

According to the thirteenth aspect of the invention, since the soundproof wall is made of a member having a heat insulating property, the solar cell can be insulated and kept warm very easily only by installing and fixing the solar cell. The same effect as the above could be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a solar cell integrated soundproof wall of the present invention.

FIG. 2 is a cross-sectional view taken along line AA ′ showing an embodiment example of the solar cell-integrated soundproof wall of the present invention.

FIG. 3 is a perspective view showing a first embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 4 is a sectional view taken along line BB ′ showing the first embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 5 is a perspective view showing a second embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 6 is a sectional view taken along line CC ′ showing a second embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 7 is a sectional view showing a third embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 8 is a partial sectional view showing a third embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 9 is a partial sectional view showing a fourth embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 10 is a sectional view showing a fifth embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 11 is a sectional view showing a sixth embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 12 is a cross-sectional view showing a seventh embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 13 is a sectional view showing an eighth embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 14 is a sectional view showing a ninth embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 15 is a sectional view showing a tenth embodiment of the solar cell-integrated soundproof wall of the present invention.

FIG. 16 is a sectional view of a soundproof wall on which a conventional solar cell is mounted.

[Explanation of symbols]

1, 13, 21, 25, 33, 36, 38, 42, 45
Solar cell module 2, 26 Solar cell element 3, 27 Translucent resin 4 Glass 5 Back surface protection film 6, 14 Aluminum frame 7, 18, 32 Drill screw 9, 15, 23, 30, 35, 41 Sound insulation wall 9 Foundation stand 10, 19 and 24 Column 11 Steel plate 12 Concavo-convex portion 16 Hole 17 Fixing member 20 Beam 22 Support material 28, 34 Translucent resin film 29 Backside resin film 31 Butyl rubber tape 37 Fixing member 39 Bending portion 40 Glass 43 Member 44 Closed space 46 ALC plate 47 Soundproof wall 48 Solar cell panel 49 Stand

Claims (21)

[Claims] 1. A soundproof wall provided on a side portion of a road or an iron road, wherein the soundproof wall has a vertically installed portion and a portion curved or inclined toward the roadside. A solar cell-integrated soundproof wall, in which a solar cell is integrally installed and fixed to at least a part of a curved or inclined portion. 2. A soundproof wall having a curved surface as a whole on a side portion of a road or an iron road, wherein a solar cell is integrated with at least a part of a portion whose curved surface outside faces upward. A soundproof wall with a built-in solar cell, which is installed and fixed on. 3. The roadside is arranged so that the installation and fixing angle of the solar cell integrally installed and fixed to the soundproof wall is the optimum installation and fixing angle at which the output of the solar cell is the highest. 3. A curved or inclined portion, or a portion in which the outside of the curved surface portion faces upward is formed by setting the curvature or inclination angle of these portions. A solar cell-integrated soundproof wall according to item 1. 4. The flexible solar cell manufactured by using a flexible photovoltaic element, according to claim 1, wherein the solar cell is a flexible solar cell. The solar cell integrated soundproof wall according to 1. 5. The flexible solar cell comprises a transparent resin film on the surface of the light-receiving surface, and an amorphous silicon solar cell element formed on a flexible stainless steel substrate as a photovoltaic element. The solar cell-integrated soundproof wall according to claim 4, wherein the photovoltaic element is produced by resin-sealing the photovoltaic element with a translucent resin. 6. A solar cell-integrated soundproof wall in which the surface of the light receiving surface of the solar cell is formed of at least a translucent resin film and a translucent resin. It is 80% or more, The solar cell integrated soundproof wall according to any one of claims 1 to 5, which is characterized in that. 7. The solar cell integrated soundproof wall according to claim 5, wherein in the flexible solar cell, a metallic reinforcing plate is provided on the back surface side of the light receiving surface. 8. The solar cell having a metallic reinforcing plate provided on the back side of the light-receiving surface is bent, and the solar cell is installed and fixed using the bent portion. 7. A solar cell integrated soundproof wall according to 7. 9. The solar cell integrated soundproof wall according to claim 1, wherein at least a part of a portion where the solar cell is not integrally installed and fixed is formed of a transparent material. A soundproof wall with integrated solar cell according to the item. 10. The solar cell soundproof wall according to claim 9, wherein the transparent material is a polycarbonate resin. 11. The photovoltaic element of the solar cell is an amorphous silicon solar cell element, and the soundproof wall of a substantial portion on which the solar cell is integrally installed and fixed. The solar cell-integrated soundproof wall according to any one of claims 1 to 10, which has a function of substantially insulating the solar cell from heat. 12. The soundproof wall of a corresponding portion for integrally mounting and fixing the solar cell has a structure having a closed space with the solar cell in a structure for mounting and fixing the solar cell, The solar cell-integrated soundproof wall according to claim 11, wherein the solar cell has a function of substantially insulating the solar cell. 13. The soundproof wall corresponding to a portion where the solar cells are integrally installed and fixed is made of a member having a heat insulating property to realize a function of substantially keeping the heat insulating of the solar cells. The solar cell integrated soundproof wall according to claim 11. 14. A wall material on which a solar cell is installed. 15. The wall material according to claim 14, wherein the solar cell comprises an amorphous silicon solar cell. 16. A wall member having a flexible plate member and a solar cell fixedly provided on the resin plate. 17. The wall material according to claim 16, wherein the solar cell comprises an amorphous silicon solar cell. 18. The wall material according to claim 16, wherein the flexible plate material is formed of a stainless material. 19. The wall material according to claim 14 or 16, wherein the flexible plate material is formed into a curved shape. 20. The flexible plate material is formed into a curved shape along the lateral direction of the plate material.
Wall material described in. 21. The flexible plate material is formed into a bent shape along the lateral direction of the plate material.
Wall material described in.