JP2013102012A - Photovoltaic generation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide photovoltaic generation apparatus capable of significantly increasing power generation amount per unit area of a plot for installing solar cell panels.SOLUTION: The photovoltaic generation apparatus includes a plurality of solar cell panels 11, 12, 13 arranged in a multistage manner at vertical intervals, and a light guide device 1 that guides sunshine to at least a part of respective photovoltaic cell panels. The light guide device includes a first light guide device 31 and a second light guide device 32.

Description

  The present invention relates to a solar power generation apparatus in which solar cell panels are arranged in multiple stages.

  In recent years, there is a growing sense of crisis with respect to the global warming phenomenon caused by carbon dioxide emissions. Accordingly, a solar power generation apparatus using a solar cell as a clean energy supply source has attracted attention.

  As this kind of solar power generation device, as described in Patent Document 1 and Patent Document 2, a large number of panel-shaped solar cell modules (solar cell panels) are installed on the roof of a building such as a house. Are known.

  In addition, as shown in Patent Document 3, a large-scale photovoltaic power generation apparatus is also installed by installing a large number of solar cell panels in a place other than the roof, for example, on a sunny flat land. .

JP 2002-289903 A JP 2005-241079 A JP 2000-150949 A

  However, in such conventional solar power generation devices, in the solar power generation devices described in Patent Literature 1 and Patent Literature 2, since the solar cell panel is installed on the roof of the building, the device is large enough for installation work. Not only is it time-consuming, but there is a problem that it is difficult to maintain safety in high-altitude work.

  In addition, since it is necessary to provide the building with sufficient structural strength to withstand the weight of the solar cell panel, there is a problem that the overall construction cost increases accordingly.

In this respect, the solar power generation device described in Patent Document 3 is installed on a flat ground or the like other than the roof, and thus the above-described problem does not occur.
However, in this case, there is a problem that a large site is required in order to arrange a large number of solar cell panels side by side on a flat ground or the like. In particular, in urbanized areas where the effective use of land is required, it was necessary to increase the amount of power generation per unit area of the site where solar panels were installed as much as possible.
Such a problem also exists as a similar problem when the solar cell panel is installed on a flat roof or when it is installed in a relatively narrow open space.

  The present invention has been made in consideration of the above points, and the solar cell panels are arranged in multiple stages and equipped with a light guide device that guides sunlight to the solar cell panels, thereby effectively using the site. Therefore, it is an object of the present invention to provide a solar power generation device that can significantly improve the power generation amount per unit area of a site where a solar cell panel is installed.

  The present invention for solving the above-described problems is a plurality of solar cell panels arranged in multiple stages at intervals in the vertical direction, and at least some of the solar cell panels are exposed to sunlight. And a light guide device for guiding.

  ADVANTAGE OF THE INVENTION According to this invention, the effective utilization per unit area, such as a site | area, a vacant land, or a flat roof, can be aimed at by arrange | positioning a solar cell panel in multiple steps at intervals up and down. Moreover, by equipping at least a part of the solar cell panels with a light guide device that guides sunlight, the solar cell panels that are shaded by being arranged in multiple stages can be irradiated with sunlight. Thereby, the electric power generation amount per unit area of the site which installs a solar cell panel can be improved markedly.

As a preferred embodiment of the present invention, the light guide device is characterized by guiding sunlight to a solar cell panel that is shaded among the solar cell panels.
Thus, sunlight can be guide | induced only to the solar cell panel after the 2nd step | paragraph which becomes easy to be shaded by setting a light guide device as the structure which guides sunlight with respect to the solar cell panel which becomes shade. . Thereby, a 1st-stage solar cell panel can be made into a normal usage pattern. Even when at least a part of the first stage is shaded, the shaded part can be irradiated with sunlight.

As a preferred embodiment of the present invention, the light guide device guides sunlight to the second and subsequent solar cell panels from the top among a plurality of solar cell panels arranged in multiple stages at intervals in the vertical direction. It is characterized by.
In this way, the light guide device is configured to guide sunlight to the solar cell panels at the second and subsequent stages from the top, and when the first stage from the top does not become shade, Sunlight can be guided only to the second and subsequent solar cell panels that are likely to be formed. Thereby, a 1st-stage solar cell panel can be made into a normal usage pattern.

In a preferred embodiment of the present invention, the uppermost solar cell panel is inclined so that the surface thereof is directed toward the sun, and the second and subsequent solar cell panels are sunlight guided by the light guide device. It is characterized by being inclined so as to be in a form facing each other.
In this way, the uppermost solar cell panel is inclined so that the surface thereof faces the sun, and the second and subsequent solar cell panels are inclined so as to face the sunlight guided by the light guide device. Thus, each of the solar cell panels at each stage can be in an inclined state suitable for photovoltaic power generation. As a result, the power generation efficiency of the entire solar cell panel can be increased.

In a preferred embodiment of the present invention, the solar cell panels are arranged in at least three stages, and the light guide device includes a first light guide device that guides sunlight to a second-stage solar cell panel, and a third-stage solar cell. And a second light guide device for guiding sunlight to the panel.
Thus, by providing the first light guide device that guides sunlight to the second-stage solar cell panel and the second light guide device that guides sunlight to the third-stage solar cell panel, A light guide device can be arranged. Thereby, it becomes possible to set it as the structure which guides sunlight efficiently to the solar cell panel of each step.

In a preferred embodiment of the present invention, the first light guide device and the second light guide device are arranged on both sides of the solar cell panel in the middle.
In this way, when the first light guide device and the second light guide device are arranged on both sides of the solar cell panel in the middle, the first light guide device and the second light guide are used in the daylighting and light guiding of sunlight. The device can be arranged so as not to interfere with each other. Thereby, sunlight can be reliably and efficiently guided to the multi-stage solar cell panel.

In a preferred embodiment of the present invention, the light guide device includes a reflecting plate that reflects sunlight and guides the reflected light to the solar cell panel, and angle adjusting means of the reflecting plate.
In this way, when the light guide device is configured to include the reflector and the angle adjustment means of the reflector, the light guide of the sunlight is performed so that the power generation efficiency of the solar cell panel can be sufficiently increased. The state can be controlled efficiently and effectively.

  According to the solar power generation device of the present invention, the solar cell panels are arranged in multiple stages and equipped with a light guide device that guides sunlight to the solar cell panel, thereby achieving effective use of the site. The amount of power generation per unit area of the site where the site is installed can be significantly improved.

It is a schematic perspective view of the solar power generation device concerning Embodiment 1 of the present invention. It is an expansion perspective view of the angle adjustment means concerning Embodiment 1 of the present invention. It is a schematic side view of the solar power generation device according to Embodiment 1 of the present invention. It is a schematic side view of the solar power generation device concerning Embodiment 2 of the present invention. It is a schematic side view of the solar power generation device concerning Embodiment 3 of this invention. It is a schematic side view of the solar power generation device concerning Embodiment 4 of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
The photovoltaic power generation apparatus according to Embodiment 1 is indicated by reference numeral 10 as a whole in FIGS. 1 and 2.

  The solar power generation device 10 includes a plurality of solar cell panels 1 arranged in three stages at intervals in the vertical direction, a support base 2 that supports each solar cell panel 1, and sunlight on each solar cell panel 1. A light guide device 3 for guiding the light guide device 3 and a support portion for supporting the light guide device 3. The light guide device 3 includes a first light guide device 31 that guides sunlight to the second-stage solar cell panel, a second light guide device 32 that guides sunlight to the third-stage solar cell panel, It has. Next, these details will be described.

  As shown in FIG. 1, the solar cell panel 1 includes a first-stage solar cell panel 11 that is the uppermost level, a second-level solar cell panel 12, and a third-level solar cell panel 13. . These solar cell panels are of a general rectangular shape. The size and weight are not particularly limited, but those having a size and weight that facilitate installation work are preferable.

As shown in FIG. 2, the first-stage solar panel 11, the second-stage solar panel 12, and the third-stage solar panel 13 are respectively solar cells in consideration of the relative relationship with the altitude of the sun S. Inclined by a predetermined angle toward the S side. This inclination angle is set to the most preferable angle corresponding to the installation latitude of the solar cell panel 1.

  The support base 2 that supports these solar cell panels 1 includes a plurality of support columns 21 and a connecting member 22 that connects the support columns 21 in the horizontal direction. The height, thickness, strength, and the like of each column 21 are determined by the number of stages of the solar cell panel 1 to be installed, the overall weight, and the like.

  As shown in FIG. 3, the light guide device 3 includes a first light guide device 31 that guides sunlight S <b> 1 to the second-stage solar cell panel 12, and sunlight to the third-stage solar cell panel 13. And a second light guide device 32 for guiding S2. The first light guide device 31 and the second light guide device 32 are disposed before and after the solar cell panel 1. The sunlight directly irradiated on the first-stage solar cell panel 11 is defined as sunlight S3. In the first embodiment, when the direction in which the solar cell panel 1 is inclined toward the solar S side is defined as the front side, the first light guide device 31 is disposed on the rear side of the solar cell panel 1. .

  The first light guide device 31 and the second light guide device 32 are each supported substantially horizontally by a plurality of support members 33. In the first embodiment, the first light guide 31 is installed at a higher position than the second light guide device 32.

  The first light guide device 31 includes a reflecting plate 34 that reflects the sunlight S1 and guides the reflected light to the solar cell panel 11, and an angle adjusting means 35 for the reflecting plate 34. As the reflecting plate 34, various reflecting plates can be used as long as it has a reflecting mirror surface with high sunlight reflectance and is excellent in durability itself, not limited to metal, resin, or glass. can do.

  As the angle adjustment means 35, a manual adjustment type, an automatic adjustment type, or a combination thereof can be adopted. In this embodiment, as shown in FIG. 2, an example provided with a handle 36 for manual adjustment and a drive motor 37 for automatic adjustment is illustrated.

  Specifically, as shown in FIG. 1, the reflecting plate 34 is formed in a long rectangle (rectangular shape) along the longitudinal direction of the second-stage solar cell panel 12 and is used for adjusting the tilt angle of the reflecting plate 34. The horizontal axis 38 is provided. The reflecting plate 34 is configured to be capable of fine adjustment of the angle for guiding the sunlight S1 to the solar cell panel 12 by rotating about the horizontal axis 38.

  Similar to the first light guide device 31, the second light guide device 32 includes a handle 36 for manual adjustment and a drive motor 37 for automatic adjustment. The reflection plate 34 is formed in a long rectangle (rectangle) along the longitudinal direction of the third-stage solar cell panel 13, and has a horizontal axis 38 for adjusting the inclination angle of the reflection plate 34. The reflector 34 is configured to be capable of fine adjustment of the angle at which the sunlight S2 is guided to the solar cell panel 13 by rotating about the horizontal axis 38.

  Although not particularly shown in the figure, a control means programmed in advance so as to perform rotation control of the drive motor 37 in accordance with the height of the sun S may be provided.

  According to this embodiment, the solar cell panel 1 can be effectively used per unit area such as a site, a vacant land, or a flat roof by arranging the solar cell panels 1 in three stages at intervals in the vertical direction. Further, by arranging the first light guide device 31 and the second light guide device 32 for guiding sunlight to the second-stage solar cell panel 12 and the third-stage solar cell panel 13, they are arranged in multiple stages. The solar cell panels 12 and 13 that are shaded can be irradiated with sunlight. Thereby, the electric power generation amount per unit area of the site which installs a solar cell panel can be improved markedly. Therefore, even on a narrow site or a flat roof, it is possible to obtain a larger amount of power generation than before.

  Moreover, when the light guide device is configured to guide sunlight S1 and S2 to the solar cell panels 12 and 13 in the second and subsequent stages from the top, when the first stage from the top is not shaded, Except for this, sunlight can be guided only to the second and subsequent solar cell panels that are likely to be shaded. Thereby, the 1st-stage solar cell panel 11 can be made into a normal usage pattern.

  In addition, the first-stage solar cell panel 11 from the top is inclined so that the surface thereof faces the sun side, and the second-stage and subsequent solar cell panels 12 and 13 are also opposed to sunlight guided by the light guide device. By inclining in such a manner, each of the solar cell panels at each stage can be in an inclined state suitable for photovoltaic power generation. As a result, the power generation efficiency of the entire solar cell panel can be increased.

  Moreover, by providing the 1st light guide device 31 which guides sunlight S1 to the solar cell panel 12 of the 2nd step, and the 2nd light guide device 32 which guides sunlight S2 to the solar cell panel 13 of the 3rd step, A light guide device dedicated to each stage can be arranged. Thereby, it becomes possible to set it as the structure which guides sunlight efficiently to the solar cell panel of each step.

  Further, by arranging the first light guide device 31 and the second light guide device 32 on both sides (front and rear sides toward the sun) with the solar cell panel 1 sandwiched therebetween, In the light guide, the first light guide device 31 and the second light guide device 32 can be arranged so as not to interfere with each other. Thereby, sunlight can be reliably and efficiently guided to the multi-stage solar cell panel.

  Furthermore, since the light guide device 3 includes the reflector 34 and the angle adjusting means 35 of the reflector 34, the solar light panel 3 can be sufficiently enhanced in power generation efficiency. It is possible to efficiently and effectively control the light guiding state.

(Embodiment 2)
FIG. 4 is a schematic side view of the photovoltaic power generation apparatus 10 according to Embodiment 2 of the present invention. In the figure, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof is simplified.

  In the second embodiment, the first light guide device 31 and the second light guide device 32 are arranged on one side of the solar cell panel 1 in two upper and lower stages. In this case, the first light guide device 31 is arranged on the upper stage, the second light guide device 32 is arranged on the lower stage, and the first light guide device 31 is located outside the second light guide device 32 (rearward toward the sun). ). When the light guide device is configured in this manner, the first light guide device 31 and the second light guide device 32 can be combined into one place to be a compact arrangement. Moreover, the support material 33 can also be used.

(Embodiment 3)
FIG. 5 is a schematic side view of the photovoltaic power generation apparatus 10 according to Embodiment 3 of the present invention. In the figure, the same components as those of the previous embodiment are denoted by the same reference numerals, and the description thereof is simplified.

  In the third embodiment, the first light guide device 31 and the second light guide device 32 are arranged in two upper and lower stages on one side (rear side toward the sun) of the solar cell panel 1 and the second stage sun. The battery panel 12 and the solar battery panel 13 at the third stage are designed to be devised in terms of the direction and inclination. In this case, the first light guide device 31 is disposed on the upper stage, the second light guide device 32 is disposed on the lower stage, and the first light guide device 31 is disposed directly on the second light guide device 32.

  Further, the second-stage solar cell panel 12 is disposed downward with the inclination angle changed so as to receive the reflected light from the reflection plate 34 of the second light guide device 32. The solar cell panel 13 at the third stage is arranged upward with the inclination angle changed so as to receive the reflected light from the reflection plate 34 of the first light guide device 31.

  Even when the light guide device is configured in this way, the first light guide device 31 and the second light guide device 32 can be combined into one place to be a compact arrangement. Moreover, the support | pillar 33 can also be used. Furthermore, it is possible to face the solar cell panel 13 in a shape that is substantially perpendicular to the reflected light of the sunlight S1 by the reflecting plate 34. Moreover, the solar cell panel 12 can be faced in a shape that is substantially perpendicular to the reflected light of the sunlight S2 by the reflecting plate. Thereby, power generation efficiency can be improved.

(Embodiment 4)
FIG. 6 is a schematic side view of the solar power generation device 10 according to Embodiment 4 of the present invention. In the figure, the same components as those of the previous embodiment are denoted by the same reference numerals, and the description thereof is simplified.

  The fourth embodiment shows an example in which the solar cell panels are arranged in two stages and the second-stage solar cell panel 12 is arranged almost vertically. In this case, the 1st light guide device 31 is arrange | positioned rather than the solar cell panel 1 (back side toward the sun). Therefore, the second-stage solar cell panel 12 is supported by the support member 22 so as to face the reflecting plate 34 of the first light guide device 31. In addition, the support material 22 in this embodiment is provided substantially vertically like a support | pillar.

  When the solar power generation device 10 is configured in this way, it can be arranged in a form in which the second-stage solar cell panel 12 is housed under the first-stage solar cell panel 11. Moreover, the solar cell panel 12 can be faced substantially at right angles to the reflected light of the sunlight S1 by the reflecting plate. Further, by increasing the arrangement height of the first-stage solar cell panel 11, the upper and lower heights of the second-stage solar cell panel 12 are further increased, and the large-area solar cell panel 12 is arranged. Is possible.

  Note that the number and inclination of each solar cell panel, the structure and arrangement position of the light guide device, and the like shown in each embodiment are merely examples, and can be variously changed based on design requirements and the like. For example, in FIG. 3, the second-stage solar cell panel 12 and the third-stage solar cell panel 13 are arranged substantially vertically as shown in FIG. 6, and the solar cell panel surfaces are arranged outwardly from each other. Thus, the configuration may be such that the reflected light from each of the reflecting plates 34 is received.

DESCRIPTION OF SYMBOLS 1 Solar cell panel 11 1st-stage solar cell panel 12 2nd-stage solar cell panel 13 3rd-stage solar cell panel 2 Base 21 Strut 22 Support material 3 Light guide device 31 First light guide device 32 Second guide Optical device 34 Reflector 35 Angle adjustment means

Claims (7)

A plurality of solar panels arranged in multiple stages at intervals in the vertical direction;
A solar power generation device comprising: a light guide device that guides sunlight to at least some of the solar cell panels.   2. The photovoltaic power generation apparatus according to claim 1, wherein the light guide device guides sunlight to a shaded solar cell panel among the solar cell panels.   The light guide device guides sunlight to a second or lower solar cell panel from above among a plurality of solar cell panels arranged in multiple stages at intervals in the vertical direction. The solar power generation device according to 1 or 2.   Of the solar cell panels, the uppermost solar cell panel is inclined so that the surface thereof is directed toward the sun, and the solar cell panels in the second and subsequent stages are guided by the light guide device. It inclines so that it may become a form which faces light, The solar power generation device in any one of Claims 1-3 characterized by the above-mentioned. The solar cell panels are arranged in at least three stages,
The light guide device includes a first light guide device that guides sunlight to a second-stage solar cell panel, and a second light guide device that guides sunlight to a third-stage solar cell panel. The solar power generation device according to any one of claims 1 to 4, wherein the solar power generation device is characterized.   The solar power generation device according to claim 5, wherein the first light guide device and the second light guide device are disposed on both sides of the solar cell panel in the middle. The said light guide device is provided with the reflecting plate which reflects sunlight and guides the reflected light to a solar cell panel, and the angle adjustment means of the said reflecting plate, The said light guide apparatus is characterized by the above-mentioned. The solar power generation device described in any one.

Images