JP4834894B1 - Solar panel installation structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell panel installation structure capable of assisting in power generation of a roof part by effectively using an outer wall surface which is an unused part without impairing the design of a building.
SOLUTION: Two single-sided light receiving solar panels are back-to-back processed into a double-sided light receiving type so as to protrude from the outer wall surface of a building, and vertically installed in a sleeve wall shape, or two single-sided light receiving solar cell panels are mounted. The long sides are butted and assembled into a triangular bay window. Furthermore, it is set as the structure of reflected light suppression with arrangement | positioning of a ceramic convex-shaped bulging part and a surface coloring layer in a cover glass.
[Selection] Figure 1

Description

The present invention relates to an installation structure of a solar cell panel, and more specifically , a solar cell assembled in a triangular bay window shape with respect to an outer peripheral wall of a building having a wide light receiving surface or an outermost wall of an outdoor wall is vertically installed and added to the rooftop. In addition to increasing the power generation area, the design of the building is improved, and at the same time, the solar panel installation structure is designed with consideration for the environmental landscape.

In recent years, solar power generation has been attracting attention as a clean energy source that does not generate pollution such as exhaust gas and radiation from the standpoint of global environmental conservation, and a wide variety of solar cells have been developed and are being mass-produced. The price has been reduced and development of a wide range of applications has been made. Together with the government's environmental policy on housing, it has come to be widely used in buildings and other buildings. As solar power generation is promoted and promoted in this way, its appearance has also become important, and solar power generation systems are installed on buildings with wide light receiving surfaces such as building walls and rooftops. At the same time, in addition to consideration for the landscape environment in addition to power generation, there is an increasing interest in the use of information as a medium for advertising and advertising such as decorative design, letters, and designs.
Since the rooftops of buildings such as buildings and the roofs of houses are empty spaces and are the best parts of sunlight, the installation locations are concentrated here. However, there is a need for an elevator machine room and staircase on the rooftop of the building, and in some cases, an air conditioner outdoor unit, etc. Recently, the rooftop is used to prevent the heat island phenomenon or raise awareness of coexistence with the natural environment. Many buildings have gardens, biotopes, vegetable gardens, etc., and their usage area is limited. Even if you want to occupy as wide a range as possible, the installation location of solar panels is usually limited.
In order to solve the above problems, for example, the following proposals have been made as means for increasing the installation area. Japanese Patent Application Laid-Open No. 2002-076415 and Japanese Patent Application Laid-Open No. 08-162660 propose that the empty space can be used effectively by attaching the solar cell module to one pole in multiple stages. The module shakes due to wind pressure and there is a question about its stability. JP-A 06-318726 and JP-A 06-244445 also propose installation on the outer wall as well as the roof. However, in these inventions, attention is paid only to efficient light receiving means, and much consideration is not given to the design of the building, the surrounding environment, and the like.

Patent Document 1 (Japanese Patent Application Laid-Open No. 2008-111322) discloses a decorative decorative plate to be attached to a wall surface, on which a dye-sensitized solar cell having a visible light transmittance of 20% or more is provided. Therefore, it is proposed that the text on the decorative plate can be seen through the solar cell. Although it is an invention pursuing the design of the solar cell panel itself, the installation to the wall surface is flat, so that the installation area is not greatly earned. Patent Document 2 (Japanese Patent Laid-Open No. 10-018467) proposes an integrated panel of a sound insulating material and a solar cell that does not impair the installation landscape. The appearance of a huge building with solar cells facing the outside of the noise barrier on the highway is inevitably a strange sight with a blackish tone, and has no design. Patent Document 3 (Japanese Patent Application Laid-Open No. 09-021117) proposes to heal the monotonousness of the driver by projecting the picture provided in the tunnel with the electric power obtained from the solar cell panel integrated with the sound insulation wall of the highway. However, the light receiving surface is still poor in design. Patent Document 4 (Japanese Patent Application Laid-Open No. 2002-010494) proposes attachment to a bridge girder, a fence, a side wall, a concrete pillar, or the like of an expressway. Although the idea of effective use of a vast space is excellent, it is attached to the side wall in a flat shape, and the design as a building is low as described above. Patent Document 5 (Japanese Patent Application Laid-Open No. 2005-223164) describes a double-sided light receiving solar cell, which is proposed to be capable of efficient power generation if it is installed vertically on a wall surface in accordance with the sun direction. . However, the backside of the double-sided solar cell of Patent Document 5, that is, the transparent efficiency on the transparent backsheet side will be inferior to that on the front side, particularly when using a thin-film silicon solar cell. There is no choice but to use polycrystalline silicon molds, and these are dark and opaque, making the room darker and irritating. Also, the single crystal or polycrystalline silicon type is more expensive than the thin film silicon type, and it is extremely uneconomical when many panels are arranged in parallel. Furthermore, it is described that when the installation angle is set to 60 degrees in the double-sided light receiving solar cell of Patent Document 5, an electric energy of 120 degrees can be obtained compared to the single-sided light receiving type, In comparison, it is natural that a system with a backside power function on the back side will increase the annual power generation. Further, in the vertical installation method, the building is characterized in that it is perpendicular to the ground surface as a fence-integrated or handrail-integrated shape mainly on the roof of the building, and the plurality of panels are arranged in a planar shape. It is not installed so as to protrude vertically from the wall surface of the building, and it is insufficient in view of effective use of the installation area. The same applies to the installation on the side walls, piers, etc. of the expressway, and there is no change to planar light reception.

It is an object of the present invention to provide a solar panel installation structure that can be installed by effectively using unused parts of the outer wall without damaging the design of the building, and that can assist in power generation on the roof. Yes.

The present invention relates to a structure that is three-dimensionally installed so as to protrude perpendicularly from the outer wall surface of a building. Specifically, two single-sided light-receiving solar cell panels are processed back-to-back to form a double-sided light-receiving type. The present inventors have conceived that the battery panel is assembled and installed in a triangular bay window shape with the long sides facing each other with the light receiving surface facing outside, and the present invention has been completed.
The solar cell panel according to the present invention has a convex bulge by a screen printing method using the ceramic ink described in the prior patents 32867777, 3482370 and 30409238 proposed by the applicant. It is desirable to use a solar cell module of the formed translucent substrate.
Among them, in the solar cell module described in Japanese Patent No. 3049238, a surface coloring layer is coated on one side peripheral surface of the convex portion using colored ceramics and ink, and an optically transparent portion is exposed on the other side peripheral surface. For example, when the non-printing part with light transmission and the printing part of the coloring layer are arranged vertically, the power generation by light reception from above and when looking up from below It is intended to provide a solar panel installation structure that has a variety of fashionability.

  In addition, in the solar cell module described in Japanese Patent No. 3049238, the surface is formed on at least one surface of the convex portion in the convex bulge portion that is formed by ceramic printing and using a screen printing method so as to be approximately uniform and regularly formed as desired. It is the composition of the translucent substrate which provided the coloring layer, and it works to suppress the direct reflected light in combination with the coloring effect of the surface cover glass of the solar cell module, and to the solar cell by irregular reflection with respect to the incidence of sunlight. The light receiving efficiency can be expected to be prevented from decreasing, and the direct reflection of the solar cell module can be expected to be suppressed.

Thus, in the solar cell installation structure according to the present invention, in the configuration in which color printing is performed on the half surface of the convex bulging portion of the surface cover glass, in the case of wall surface installation in the present invention, the observer looks up from the ground. In this case, an effect that the color surface can be emphasized can be obtained. In addition, since rainwater, dust, and the like can be easily removed, the efficiency of electricity transmission does not decrease even during long-term outdoor exposure, and costs can be reduced. As described above, in the present invention, when the surface coloring layer is layered by using the colored ceramic ink on the cover glass in the solar cell module described in Japanese Patent No. 3049238, the solar cell panel of the present invention is attached to the outer peripheral wall. Or, when installed on an outdoor wall, the solar cells are displayed colorfully with anti-reflection of light and color decorations such as letters and pictures that harmonize with the environmental landscape. It works to brighten the environment, provide a display effect, and expand its use as an exterior member.
In addition, the solar cell panel according to the present invention is also provided in the prior patent No. 3482370 proposed by the above-mentioned applicant. However, there is a description that a ceramic ink that is kneaded with tourmaline ore particles that form minus static electricity is used to exert the function of preventing contamination. In the present invention, to prevent the stain on the cover glass on the light-receiving surface, the solar cell is colorfully displayed on the color decoration display by the surface coloring layer using colored ceramics ink, and also has a colorful fashionability. In addition to kneading the tourmaline ore powder, it is possible to prevent contamination of the light-receiving surface by using a mixture of a natural ore powder containing a photocatalytic titanium dioxide or a rare element and a far-infrared ceramic.
However, a double-sided light-receiving solar cell described in Patent Document 5, a single crystal silicon type, a polycrystalline silicon type, or a thin film silicon type solar cell can also be used. Among these, an inexpensive thin-film silicon mold is preferable because of the advantage that the module size can be freely changed.
In the present invention, the two single-sided light receiving solar cell panels are processed into a double-sided light receiving type by back-to-back, and the two single-sided light receiving solar cell panels are assembled and installed in the shape of a triangular bay window with their long sides facing each other. In that case, a plurality of openings may be installed on the entire side wall having no opening, or between the opening and the opening. The size of the opening, its position, and the location of the solar panel. By installing in a well-balanced manner, it is possible to create a building with a rich expression. Outside scenery can be seen from the indoor side, and since it is not attached to the upper part like a kite, it does not interfere with daylighting and functions as a blindfold or partition for privacy protection.
The light hitting the light receiving surface is transmitted through the surface glass and absorbed by the solar cell element, but when the sun altitude is low in the morning and evening, that is, when the incident angle is large, the light is not easily absorbed, and low reflection glass is used. Even if it is a solar panel, there is no complete absorption, and in the flat type installed on the rooftop, the reflected light is merely dissipated. On the other hand, by installing a plurality of sets of double-sided light receiving panels of the present invention in a triangular window shape, it becomes possible to receive reflected light from adjacent panels and use it for power generation. Will improve.
In addition, although the power generation efficiency on the wall surface is lower than that on the rooftop, it can be compensated by increasing the number of installations, making it possible to reduce costs by taking advantage of the scale advantage. At dusk, it can block the sun and suppress the temperature rise in the room.
Furthermore , the structure installed in the shape of a triangular bay window provides a more stable state than the installation in the shape of a sleeve wall, and it is installed vertically on the triangular bay window solar cell panel of the present invention and other, for example, the outer wall surface according to the sensitivity of the designer The fashionability of a building can be further improved by combining and arranging the double-sided light-receiving solar cell panel .
In general, it is known that the performance of a semiconductor element decreases with increasing humidity, and it is said that the conversion efficiency of a non-crystalline optical semiconductor element solar cell is reduced by about 0.25% per 1 ° C. temperature increase. . Therefore, how to keep the temperature rise of the panel low and prevent the conversion efficiency from falling is one of the important issues. Triangular cavities formed between the wall and the two panels not only prevent air from flowing freely, but also suppress the temperature rise of the element, thereby preventing a decrease in power generation efficiency. It leads to things.
The type that is attached to the sloped roof of a detached house, the flat type that is installed on the roof of a building, etc. are easily affected by pollutants due to rainfall, and the reduction in power generation efficiency due to dirt is regarded as a problem. For example, Japanese Patent Application Publication No. 2009-164434 has proposed that the shape of the frame is devised so that water does not stay. Japanese Patent Laid-Open No. 10-290020 proposes means for decomposing adhering contaminants with a photocatalyst. According to the present invention, the structure is three-dimensionally installed so as to protrude at right angles from the outer wall surface of the building, and since it is installed in the vertical direction, it is less likely to receive direct rainfall, and the glass surface is subjected to ceramic printing. Therefore, the adhering dust is easily washed away, so that a decrease in power generation efficiency can be prevented.
The larger the size of the panel that can be installed, the larger the light receiving area, but there is a limit to the mounting strength, and the width, that is, the short piece, considering the feeling of pressure and the appearance of the building when the outside view is desired from the inside The direction is preferably 300 to 600 mm, and the length, that is, the longitudinal direction corresponds to the floor height, for example, 2500 to 3000 mm. In addition, the thickness is about 20 to 30 mm in the case of a double-sided light-receiving panel in which single-sided light-receiving solar cell panels are back to back.
Moreover, when assembling in the shape of a triangular bay window with the installation structure in the present invention, the open angle θ for abutting the long sides of the two single- sided solar cell panels varies depending on the orientation of the building outer wall, but is 30 to 120 degrees. Suitable, preferably 60-90 degrees.
For installation in a new building, anchor bolts, nuts, washers, etc. provided on the long side of the solar panel are joined to the anchor bolts fixed to the horizontal bars of the frame and fixed to the wall surface. That's fine. In addition, when a continuous balcony around the outer wall is provided for each floor height, it is more stable if the lower end of the solar cell panel is installed on the balcony in addition to the joining by the installation bracket.
In the case of retrofitting by renewal, a chemical anchor is fixed after drilling in the housing structure, and the installation bracket of the solar cell panel may be fixed thereto.

According to the solar cell panel installation structure of the present invention, by attaching a plurality of sets of triangular bay windows to the outer wall of a building, the amount of power generation per building is greatly increased in addition to the array of roofs. In addition to being able to improve the fashionability of the building, the location of installation can be designed based on the original idea of the architect.

In addition, when the solar cell panel of the present invention is installed on the outer wall surface of a building or the like, the solar cell is displayed in a colorful manner by color decoration display such as anti-reflection of light and characters, picture patterns etc. in harmony with the environmental landscape. Together with the original power generation of the solar cell, the design display can brighten the environment and add a display effect, so that the use as an exterior member can be expanded.
Furthermore, when the solar cell panel according to the present invention is installed on a wall surface or roof, the cover glass is formed with a ceramic printing convex bulge, so that dirt accumulation due to conditions of outdoor exposure for a long period of time can easily flow. In addition, the surface coloring layer is coated with colored ceramics and ink on one peripheral surface of the convex part, and the light transmission property remains on the exposed part of the other peripheral surface. In addition, the layering of the surface coloring layer makes the solar cells look colorful with colored decoration displays such as letters and pictures that harmonize with the environmental landscape, and this advertising decoration design display brightens the environment together with the original power generation of the solar cells. , It can amplify the display effect and work to expand its use.

Examples of the solar cell panel installation structure according to the present invention will be described below with reference to the drawings. However, the present invention is not limited to these examples.
FIG. 1 is a cross-sectional explanatory view of a main part of a single-sided light receiving solar cell panel according to the present invention, and effectively uses an outer wall surface that is an unused part without impairing the design of a building, 1 is a single-sided light receiving solar cell panel body , 2 is a cover glass, 3 is a ceramic printing convex bulge, 4 is a conductive electrode layer base, and 5 is an insulating material. A protective layer 6 is a back coating material.
Figure 2 is a fragmentary cross-sectional illustration of the installation structure of one-side light receiving solar cell panel according to the present invention, one side reception type Futoshicho cell panel body 1 volt building frame 16, nuts, installation fitting comprising a washer 13 is mounted and fixed. 11 is a plate, 12 is an anchor bolt, 14 is a vertical bar, and 15 is a horizontal bar.
Figure 3 is a single-sided light receiving solar cell panel according to the present invention, is a perspective view showing an example where the building outer wall surface in a triangular bay window shape, the plurality example of installation of the one-side light receiving solar cell panel, 2 denotes a cover glass , 20 is a building outer wall, and 22 is a triangular bay window solar panel.
FIG. 4 is a cross-sectional view of the main part of the single-sided light receiving solar cell panel according to the present invention joined in a triangular bay window shape, 2 is a cover glass, 3 is a ceramic printing convex bulge, 4 is a conductive electrode layer substrate, 5 is an insulating protective layer, 6 is a back surface covering material, 8 is a frame, 21 is a joint fitting, and θ is an open angle .
FIG. 5 is a perspective view showing a combination installation example of the solar cell panel according to the present invention and another double-sided light-receiving solar cell panel on the building outer wall surface. 2 is a cover glass, 20 is a building outer wall, 22 is a triangular bay window solar cell panel, and 23 is a double-sided light receiving solar cell panel.

It is principal part cross-sectional explanatory drawing of the single-sided solar cell panel which concerns on this invention. It is principal part cross-sectional explanatory drawing of the installation structural example of the single-sided light reception solar cell panel which concerns on this invention. It is a perspective view which shows the structure installed in the shape of a triangular bay window on the building outer wall surface of the solar cell panel which concerns on this invention. It is principal part sectional drawing of the solar cell bane assembled and joined to the triangular bay window shape of this invention . It is a perspective view which shows the example of a combination installation of the solar cell panel which concerns on this invention, and other double-sided light reception type solar cell electricity .

DESCRIPTION OF SYMBOLS 1 Single-sided light reception solar cell panel body 2 Cover glass 3 Ceramic printing convex bulging part 4 Conductive electrode layer base | substrate 5 Insulation protective layer 6 Back surface coating material 8 Frame 11 Plate 12 Anchor bolt 13 Installation metal fitting 14 Vertical stripe 15 Horizontal stripe 16 Housing 20 Architecture Exterior wall
21 Joining bracket 22 Triangular bay window solar panel
23 Double-sided Photovoltaic Panel

Claims (4)

It is a solar cell panel installation structure that is three-dimensionally installed on a building having a wide light receiving surface such as a building wall surface or a rooftop, and is provided with a double-sided light receiving solar cell panel so as to protrude perpendicularly from the outer wall surface of the building. Do Ri, the solar panel, installation structure of a solar cell panel, characterized by comprising two sheets of single-sided light receiving solar cell panel by installing a light receiving surface assembled in the outer long side of the butt triangular bay window-like. 2. The sun according to claim 1, wherein the two single-sided light-receiving solar cell panels of the solar cell panel are assembled in a triangular bay window shape with the light-receiving surface facing outside and butting the long sides and having an open angle θ of 30 to 120 degrees. Battery panel installation structure . A convex bulge is formed on the substrate surface of the cover glass of the solar cell panel by a screen printing method using ceramics ink, and at least one side peripheral surface of the vertical line at the vertex center of the convex bulge The installation structure of the solar cell panel according to claim 1 or 2, comprising a structure in which a surface coloring layer is layered using colored ceramic ink. In a configuration in which a surface coloring layer is coated with colored ceramics / ink on one peripheral surface of the convex portion in the convex bulge portion, and light transmittance is left on the exposed portion of the other one peripheral surface. installation structure of a solar cell panel of claims 1 consisting of the configuration of the printing portion of the non-printed portion and the surface color layer is disposed vertically with sex 3 wherein.

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