JP2012234946A - Structure for installing solar power generation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for installing a solar power generation device comprising a plurality of cylindrical solar cells without fixing the device which enables the cylindrical solar cells to generate electricity by irradiating reflection light efficiently without causing light pollution.SOLUTION: A structure for installing a solar power generation device in which a plurality of cylindrical solar cells are arranged and held in a flat surface at required intervals in parallel or nearly in parallel with each other by a frame body while a plurality of leg parts attached to the frame body are installed on the installation surface without fixing comprises the installation surface in a recessed shape in which the plurality of cylindrical solar cells held in the frame body are installed through the plurality of leg parts, a plate-like material having water permeability and water retentivity which is arranged on the installation surface in a recessed shape, and a large number of small stones with a grain size of 0.1-5 cm comprising a white-colored granite-series main constituent which is mounted on the plate-like material.

Description

  The present invention relates to an installation structure of a solar power generation apparatus in which a plurality of cylindrical solar cells are arranged in parallel or substantially parallel in a plane.

  In a conventional solar power generation device, generally, a solar power generation panel in which a large number of solar cells are arranged without gaps in a plane and formed into a flat shape is widely used. As is well known, this solar power generation panel is installed because the power generation capacity is affected by the irradiation angle of sunlight, so that the installation angle is limited, and it is easy to receive excessive wind pressure due to the planar structure. There is a drawback in that the installation cost is high due to the necessity to perform it firmly.

  It has been pointed out that, unlike such a planar solar panel, a cylindrical solar cell developed by Sorindra in the United States does not have the disadvantages of the solar panel.

  In other words, since the cylindrical solar cell can generate power on the entire 360 ° circumference, it is not limited to direct light, but can generate power using reflected light, other light, etc., and has high power generation efficiency. Since the wind passes between them, the cylindrical solar cell can be installed without being fixed because it is strong against the wind pressure, and there is an advantage that the installation is simple and inexpensive.

  With respect to this installation, conventionally, as shown in FIG. 12, a plurality of cylindrical solar cells 21 are arranged and held in a plane in parallel or substantially parallel to a quadrilateral frame body 20, and leg portions 22 are attached to the frame body 20. The cylindrical solar cell 21 has an installation structure in which, for example, the roof surface of a building is disposed as an installation surface 23 through the legs 22 while being fixed.

  When a large number of such cylindrical solar cells 21 are arranged and the generated power is used particularly for business purposes, the installation surface 23 maintains the desired reflection efficiency over a long period of time, thereby generating power efficiently and stably. It is required to be able to supply to

  In the conventional installation structure shown in FIG. 12, for example, a light-reflective resin paint is applied to the installation surface 23 as one of the measures for making it possible to use reflected light from the installation surface 23 more effectively in order to improve power generation efficiency. Application is performed. However, when the light-reflective resin paint is applied to the installation surface 23, the reflection angle from the light-reflective resin paint changes uniformly with the change in the irradiation angle of sunlight, and depending on the reflection angle, the resin The reflected light from the applied installation surface 23 may be too strong in the vicinity of the surroundings and may cause light pollution. On the other hand, if the intensity is suppressed so that the reflected light does not become excessively strong, the utilization factor of the reflected light, which is a feature of the cylindrical solar cell 21, is reduced, and the power generation performance is accordingly reduced. In general, when the installation surface 23 is covered with dust, the reflection intensity thereof decreases, and when rainwater or the like accumulates on the unevenness of the surface of the installation surface 23, the dust dissolved in the rainwater into the resin paint applied to the installation surface 23. Due to the effects of chemical oxidation such as the above, there are problems such that the resin paint deteriorates early and its reflection efficiency decreases, or the resin paint peels off from the installation surface 23 due to physical deterioration. Further, when the installation surface 23 becomes high in summer or the like, the deterioration of the resin paint is further promoted, and the power generation efficiency is lowered early as the reflected light intensity is lowered early.

  In addition, if the cylindrical solar cell itself becomes hot in the summer, etc., the power generation performance will decrease, so it is desirable to have an installation structure that can be cooled, and if it is installed on the installation surface without being fixed, it will be installed due to vibration such as an earthquake. It is also desirable to have an installation structure that can be easily displaced and installed with high vibration resistance.

JP2011-001800A JP 2010-285855 A

  The present invention maintains the advantage that the installation is simple and inexpensive, and the reflected light from the installation surface does not cause light pollution to the surroundings, and is effectively reflected over a long period without deterioration, thereby improving the power generation efficiency. An improved cylindrical solar cell installation structure is provided.

  In addition to the above, the present invention further provides an installation structure for a cylindrical solar cell that efficiently cools the cylindrical solar cell and has excellent vibration resistance.

  The installation structure of the solar power generation device according to the present invention includes a plurality of leg portions attached to the frame body while holding the plurality of cylindrical solar cells arranged in parallel or substantially in parallel with each other at a predetermined interval by a frame body. Is installed on the installation surface without being fixed on the installation surface of the solar power generation apparatus, the installation surface on which the plurality of cylindrical solar cells held by the frame are installed via the plurality of legs, It is characterized by comprising a large number of non-planar white pebbles arranged almost on the installation surface.

  Preferably, the pebbles are pebbles having a particle size of 0.1 to 5 cm, more preferably 0.1 to 2 cm, made of a white granite main constituent.

  The granite-based main constituent is preferably one or more of quartz, potassium feldspar, acicular feldspar, muscovite, and ordinary amphibole.

  According to the installation structure of the present invention, each leg is not fixed on the installation surface, so that the installation is simple and inexpensive, and at the same time, a large number of pebbles having the above-mentioned particle size composed of the main white granite-based components on the installation surface. The multiple cylindrical solar cells can use not only direct light but also the reflected light from the installation surface by a large number of pebbles, and the surface shape of these pebbles can easily reflect light irregularly. In other words, since it has a concavo-convex shape and almost all have a different concavo-convex shape, the reflected light reflected by these many pebbles is diffusely reflected so as to irradiate a plurality of cylindrical solar cells almost uniformly and efficiently. It is an environment-friendly installation structure that does not cause so-called light pollution, in which the reflected light is concentratedly irradiated in the vicinity of the place where the cylindrical solar cell is installed.

  In addition, according to the installation structure of the present invention, the legs are installed on the installation surface in a state in which the lower ends of the legs are surrounded by a large number of pebbles. As a result of the vibration being absorbed by the pebbles damper (impact buffer) action, the deviation from the installation position is suppressed.

  The installation structure of the solar power generation device according to the present invention includes a plurality of leg portions attached to the frame body while holding the plurality of cylindrical solar cells arranged in parallel or substantially in parallel with each other at a predetermined interval by a frame body. Is a solar power generation device installation structure that is installed without being fixed on the installation surface, and a plurality of cylindrical solar cells held by the frame body are provided in a recessed shape in which the plurality of cylindrical solar cells are installed via the plurality of legs. The particle size of the installation surface, a plate-like material having water permeability and water retention disposed on the installation surface of the recess shape, and a white granite-based main component mounted on the plate-like material. It is characterized by comprising 1 to 5 cm many pebbles.

  It is preferable that the plate-like material is configured such that a plurality of block materials having water permeability and water retention properties are gathered and arranged in a plane, and a plurality of the pebbles are fixed to the surface of each block material. This block material is preferably composed of a molded concrete pavement material excellent in water permeability and water retention, such as a pavement material disclosed in, for example, Japanese Patent No. 4263385.

  According to the present invention, since each leg is not fixed on the installation surface, the installation is simple and inexpensive, and at the same time, a large number of pebbles of the above-mentioned particle size composed of white granite-based main components are arranged on the installation surface. Therefore, the reflected light from the installation surface can be used by the pebbles, and these pebbles are natural stones, and the surface shape has an uneven shape that easily diffuses light, so even if a large number of pebbles are arranged, Reflected reflected light illuminates evenly in the direction of multiple cylindrical solar cells, while it is environmentally friendly without irradiating light in a manner that causes light pollution in the vicinity of the place where the cylindrical solar cells are installed . In addition, since the pebbles are arranged on a plate-like material having water absorption and water retention, the moisture that has passed through the pebbles is absorbed and retained by the plate-like material, and the temperature around the cylindrical solar cell rises. The cylindrical solar cell is cooled by the heat of vaporization caused by the evaporation of moisture contained in the plate-like material, and can contribute to the improvement of the lifetime of the cylindrical solar cell and the maintenance of performance. In addition, according to the second installation structure of the present invention, since the installation is performed on the installation surface in a state where the lower end of the leg is surrounded by a large number of pebbles, each leg can be operated even if vibration such as an earthquake occurs. As a result of the vibrations being absorbed by the damper (impact buffering) action of a large number of pebbles, deviation from the installation position is suppressed.

  In addition, although it was a pebble which is a natural stone as described above, the artificial stone has a particle size of 0.1 to 5 cm, more preferably a particle size of 0.1 to 2 cm, the surface has water absorption, and the inside is water-retaining. If the pebbles have the property, water is absorbed and retained in the pebbles, and when the temperature around the cylindrical solar cell rises, the water contained in the pebbles evaporates, and the cylindrical solar cell is formed by the heat of vaporization caused by the evaporation. It can also be cooled.

  An installation structure according to the present invention includes a solar power generation device in which a plurality of cylindrical solar cells are arranged in parallel or substantially parallel in a plane, and an electrical facility that uses the output of the solar power generation device as a power source. It can utilize for installation of these cylindrical solar cells with respect to a sunlight utilization system.

  According to the present invention, in an installation structure in which a photovoltaic power generation device composed of a plurality of cylindrical solar cells is installed without being fixed, the reflected light is increased so that light is not reflected so as to cause light pollution in the surroundings and power generation efficiency is increased. Can be provided at low cost with a structure that can diffusely reflect the light to a plurality of cylindrical solar cells.

  Further, according to the present invention, when the cylindrical solar cell is installed on the installation surface by the legs, the cylindrical solar cell can be efficiently cooled, in particular, although the cylindrical solar cell is not fixedly installed. An installation structure that is resistant to vibrations such as earthquakes can be provided at low cost.

FIG. 1A is a side view of a cylindrical solar cell, FIG. 1B is a cross-sectional view taken along line AA of FIG. 1A, and FIG. It is a figure used for description. FIG. 2A is a schematic perspective view of the photovoltaic power generation apparatus, and FIG. 2B is an enlarged lateral side view of the photovoltaic power generation apparatus. FIG. 3 is a diagram showing the installation structure of the photovoltaic power generation apparatus according to the embodiment of the present invention. FIG. 4 is an enlarged view showing a main part of FIG. FIG. 5 is a diagram conceptually showing a state in which sunlight is irregularly reflected by pebbles in the embodiment. FIG. 6 is a view showing an installation structure of a photovoltaic power generation apparatus according to another embodiment of the present invention. FIG. 7 is a diagram showing a state in which block members are collectively arranged. FIG. 8 is an enlarged side view of the block material and pebbles arranged on the block material. FIG. 9 is an enlarged view showing a partial structure of another example of the block material. FIG. 10 is a diagram conceptually showing a state in which water contained in the block material is evaporated to cool the cylindrical solar cell. FIG. 11 is a diagram used for explaining the vibration suppression effect of pebbles when vibration is applied to the solar power generation device. FIG. 12 is a diagram conceptually showing a conventional cylindrical solar cell installation structure.

  Hereinafter, an installation structure of a solar power generation device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  First, a cylindrical solar cell used in the solar light utilization system will be described with reference to FIG. FIG. 1A is a side view of a cylindrical solar cell, and FIG. 1B is a cross-sectional view taken along line AA in FIG. This cylindrical solar cell 1 has a double tube structure of an inner tube 2 and an outer tube 3, and a compound semiconductor composed of four elements of copper, indium, gallium and selenium as a power generation layer on the outer peripheral surface of the inner tube 2. A film (CIGS film) 4 is formed, and a condensing promoting layer 5 is formed between the outer surface of the compound semiconductor film 4 and the inner surface of the outer tube 3 to form a cylindrical shape. Both ends of the outer tube 3 are sealed with metal caps 6. Electrodes 7 protrude from both ends, and direct current power is output between the electrodes 3 at both ends. Since this cylindrical solar cell 1 has a cylindrical outer periphery and is irradiated with 360-degree sunlight all around, as shown in FIG. 1 (c), not only direct light but also scattered light and reflected light are used for power generation. Power generation efficiency is high.

  With reference to FIG. 2, a solar power generation apparatus including a plurality of cylindrical solar cells described in FIG. 1 will be described. FIG. 2A is a schematic perspective view of the photovoltaic power generation apparatus, and FIG. 2B is an enlarged lateral side view of the photovoltaic power generation apparatus.

  With reference to these drawings, the solar power generation device 10 includes a plurality of cylindrical solar cells 11, and the plurality of cylindrical solar cells 11 are formed in a plane by a pair of opposed L-shaped frame bodies 12. The arrays are held parallel to each other or almost parallel to each other. The frame body 12 is L-shaped with a vertical frame portion 12a and a horizontal frame portion 12b. In the illustrated example, the frame bodies 12 are shown as a pair opposed to each other for convenience of explanation, but the cylindrical solar cells are arranged and held in a quadrilateral shape as a whole, including a pair of frames opposed in a direction orthogonal to the frame body 12. May be. The cylindrical solar cell 11 arranged and held in the frame body 12 in this way may be referred to as a solar cell module including the frame body 12.

  A plurality of leg portions 13 are attached to the frame body 12 at equal intervals. The number, form, and the like of the leg portions 13 can be determined according to the number of arrayed cylindrical solar cells, the weight, and the like.

  A power extraction electrode 12b is provided on the side surface of the vertical frame portion 12a of the pair of opposed frame bodies 12. The power extraction electrode 12 b is provided in a strip shape along the arrangement direction of the cylindrical solar cells 11. The power extraction electrode 12 b is in contact with the electrodes 11 a protruding from both ends of the cylindrical solar cell 11. By this contact, the output power of the cylindrical solar cell 11 is extracted to the power extraction electrode 25b. The cylindrical solar cells 11 are connected in parallel to each other when both end electrodes 11a are in common contact with the power extraction electrode 12b. A power cable 14 is attached to each frame 12. One end of the power cable 14 is connected to the power extraction electrode 12b by a structure not shown.

  An installation portion (not shown) for the cylindrical solar cell 11 is formed on the bottom surface of the horizontal frame portion 12 b of the frame body 12. This installation part is formed in accordance with the arrangement interval of the cylindrical solar cells 11.

  The solar power generation device 10 sets the number of arrangement of the cylindrical solar cells 11 on the frame body 12 according to the installation environment, adjusts the arrangement interval of the cylindrical solar cells 11, or installs the cylindrical solar cells. It is preferable to adjust the height.

  The installation structure of the solar power generation device 10 will be described with reference to FIGS. 3 and 4. FIG. 3 is a view showing the installation structure of the photovoltaic power generation apparatus according to the embodiment of the present invention, and FIG. 4 is an enlarged view showing the main part of FIG. The installation structure shown in these drawings includes an installation surface 15 having a recessed surface on which the solar power generation device 10 is installed, and a large number of pebbles 16 spread on the installation surface 15. A large number of pebbles 16 are placed on the installation surface 15 so as to surround the legs 13. These pebbles 16 are a large number of non-planar white pebbles that are almost all different, and are composed of, for example, a large number of pebbles made of a white granite main constituent. The non-planar shape is a shape other than a shape having a plane such as a tile shape or a plate shape, and these pebbles 16 are non-planar shapes that are almost different from each other, so that the installation surface on which these pebbles 16 are spread. Even if the sunlight is irradiated to 15 at the same incident angle, almost all of the reflected light is irregularly reflected by a large number of pebbles 16. Moreover, even if the incident angle of sunlight changes from morning to afternoon, the irregular reflection state is substantially the same. The main constituents of granite ores such as boulder gravel, marble, etc. which are examples of these pebbles 16 include quartz, potassium feldspar, feldspar, muscovite, ordinary amphibole, and the like. The pebbles 16 have a particle size of 0.1 to 5 cm, preferably 2 to 3 cm. The pebbles 16 are preferably a mixture of pebbles having a particle size of 0.1 to 2 cm and pebbles having a particle size of 3 to 5 cm in a ratio of approximately 1: 1. By distributing the particle size in this way, sunlight is diffused more effectively in combination with the surface shape and surface color of pebbles.

  Such pebbles 16 are white and have a non-planar surface shape, that is, a shape having irregularities that easily diffuses light. The pebbles 6 are installed on the installation surface 15 so as to surround the lower ends of the legs 13.

  Referring to FIG. 5, when sunlight 17 is applied to cylindrical solar cells 11 arranged above installation surface 15, sunlight 17 is directly applied to cylindrical solar cells 11.

  The sunlight 17 that has passed between the cylindrical solar cells 11 without being directly irradiated to the cylindrical solar cells 11 has a pebbles 16 of a white system and a non-planar surface shape, that is, a shape having unevenness that easily diffuses light. Therefore, it is diffusely reflected on the outer surface of these pebbles 16 and each cylindrical solar cell 11 can be irradiated almost uniformly.

  In this case, since almost all of the pebbles 16 are different non-planar white pebbles, the incident angle of the sunlight 17 on the installation surface 15 changes at any time of day. The irregular reflection state becomes uniform, the cylindrical solar cell 11 can be effectively irradiated with irregularly reflected light, and the power generation efficiency of the cylindrical solar cell 11 can be greatly improved.

  In the above installation structure, sunlight is irregularly reflected by the pebbles 16 at any time of the day and irradiates the cylindrical solar cell 11 almost uniformly, while the daytime is close to the place where the cylindrical solar cell 11 is installed. Environment-friendly installation structure that eliminates the time zone where the reflected light concentrates in any time zone and the neighborhood of any region, and does not cause light pollution due to the concentration of reflected light It becomes.

  In addition, in order to avoid the above light pollution, the intensity of the reflected light is conventionally suppressed so that the reflected light does not become excessively strong. However, in the embodiment, the reflected light on the installation surface is directed toward the cylindrical solar cell 11 by the pebbles 16. Since it can efficiently diffuse and eliminate light pollution, the surface color of the pebbles 16 can be a white system that is not a dark surface color but a bright surface color to suppress reflected light, and a cylindrical solar cell The utilization factor of the reflected light which is the characteristic of 21 can be raised, and electric power generation performance can be improved dramatically.

  Further, in the present embodiment, the pebbles 16 are made of granite-based main constituents such as quartz, potash feldspar, feldspar, muscovite, ordinary amphibole, etc., so that the surface of the pebbles 16 is not easily dusty. The reflection intensity can be kept high over a long period of time. Further, unlike the resin paint, the pebbles 16 are less susceptible to chemical oxidation such as dust dissolved in rainwater, can maintain high reflection efficiency over a long period of time, and have little physical deterioration. Even at high temperatures such as in summer, the reflected light intensity does not decrease, and the power generation efficiency for the cylindrical solar cell 11 can be maintained for a long time by the reflected light, which is particularly useful when used for business purposes. It is.

  As described above, the installation structure of the present embodiment is different from the conventional installation structure in which a light-reflective resin paint is applied to the installation surface, and the cylindrical solar cell has no difference even if the sunlight irradiation angle changes. In this way, the power generation efficiency can be kept constant by irradiating diffusely reflected light, and unlike the conventional installation structure, the reflected light from the installation surface is too strong near the surroundings depending on the reflection angle, causing light pollution. There is no such thing. Moreover, in the installation structure of this embodiment, since the pebbles 16 are composed of white granite main constituents, the installation surface is covered with dust as in the conventional installation structure, and the reflection strength is reduced, or the installation surface is reduced. Due to the chemical oxidation action of dust etc. dissolved in rain water accumulated on the uneven surface of the resin, the resin paint deteriorates early and its reflection efficiency decreases, or the resin paint peels from the installation surface due to physical deterioration It is an installation structure that does not have any problems.

  An installation structure according to another embodiment of the present invention will be described with reference to FIGS. FIG. 6 is a diagram showing an installation structure of a photovoltaic power generation apparatus according to another embodiment of the present invention, FIG. 7 is a diagram showing a state in which a plurality of block members are collectively arranged in the same plane, and FIG. 8 is one block It is an expanded side view of material. In this installation structure, the road surface is the installation surface. For the convenience of illustration, the block members 19 shown in FIG. 7 are shown in a state in which the pebbles 16 are arranged only on some of the block members 19, and the illustration of the arrangement of the pebbles 16 is omitted on the other block members 19. However, the pebbles 16 are embedded in all the block members 19. In FIG. 8, in order to show a state in which the pebbles 16 are partially embedded in the block material 19, the embedded cross-sectional structure is partially shown in the circle A. A part of the pebbles 16, preferably about two-thirds of the whole, is embedded and fixed, and the remaining part protrudes from the surface of the block material 19 at a required height.

  A plurality of water-permeable / water-retaining thin plate-like block members 19 are arranged on the installation surface 15 in a vertically and horizontally dense manner as plate-like materials having water permeability and water retention according to the installation state of the cylindrical solar cell.

  The block member 19 can be made of a material having a rectangular shape with a rounded periphery, excellent water retention and water permeability, a relatively small specific gravity, and appropriate moderate toughness.

  The block material 19 can be formed of a molded concrete pavement material that is rich in water permeability and excellent in bending strength, compressive strength, and water retention.

  The block material 19 was developed for the purpose of recycling the entire amount of waste concrete material generated in large quantities with the enforcement of the Construction Recycling Law for global environmental conservation, for example, and has excellent water permeability and water retention. Can be composed of paving material.

  Although it will not specifically limit if the block material 19 is a block material which has water permeability and water retention property, For example, it can be comprised with the shaping | molding concrete pavement material of the patent 4263385.

This molded concrete pavement has a content of particles having a particle size of 0.3 mm or less, obtained by pulverizing waste concrete as an aggregate, of 5% by weight or less, and a content of particles having a particle size of 5 mm or more is 3% by weight. % Of waste concrete particles that are less than or equal to 15%, to which 17% by weight (dry weight) or more and 20% by weight (dry weight) or less of cement is added, and the moisture content of these solids is 15%. % And 25% or less added and mixed, apparently almost dry mixture, dry molding using both high vibration and high compression to obtain a molded product by an immediate demolding process, then saturated with steam It is a molded concrete pavement material that has a water permeability of 1.05 × 10 ⁻² cm / sec or more and is excellent in bending strength, compressive strength, and water retention.

Alternatively, this molded concrete paving material is obtained by pulverizing waste concrete material, the content of particles having a particle size of 0.6 mm or less is 10% by weight or less, and the particle size is 2.5 mm or more. The molded concrete pavement has a content of 20% by weight or less, a water permeability of 1.05 × 10 ⁻² cm / sec or more, and is excellent in bending strength, compressive strength and water retention.

Alternatively, this molded concrete pavement is a molded concrete pavement excellent in compressive strength and water retention with a bending strength of 3.0 N / mm ² or more in the above-described molded concrete pavement.

  On the upper surface of each block material 19, a large number of pebbles 16 having a particle size of about 0.1 to 5 cm, preferably about 0.1 to 2 cm, composed of the above-described white granite-based main constituents, have a required arrangement density. A part thereof, preferably about two-thirds, is embedded and fixed, and about one-third of the remaining part protrudes from the surface of the block member 19 at a required height.

  The block material 19 has a rectangular shape with a planar shape of about 25 to 30 cm, for example, and a plate shape with a thickness of about 3.5 cm. In the pebbles 16 fixed to the block material 19, for example, pebbles having a particle size of about 0.5 cm and pebbles having a particle size of about 1.0 cm are mixed in a ratio of approximately 1: 1.

  Referring to FIG. 9, the installation structure on installation surface 15 is a two-layer structure of block material 19 and pebbles 16, so that moisture due to rain or water spraying is absorbed and retained by block material 19. When the temperature rises and the water retained in the block material 19 evaporates 18, the cylindrical solar cell 11 is cooled by the heat of vaporization when the water evaporates. Thus, the cylindrical solar cell 11 is cooled by the heat generated when the evaporated water from the block material 19 is vaporized, so that the life and performance thereof are maintained.

  In the installation structure of the above embodiment, since a plurality of block members 19 in which a large number of pebbles 16 are embedded and fixed are installed on the installation surface 15, first, by irregular reflection on the surface of the large number of pebbles 16, It is an installation structure in which the power generation efficiency of each cylindrical solar cell 11 as a whole is increased, and the intensity (light) that the diffusely reflected light from the pebbles 16 feels dazzling around the installation surface 15 in both the morning and noon time zones. In addition to being not irradiated by pollution), when the ambient temperature rises, the water retained in the plurality of block members 19 in which the pebbles 16 are embedded and fixed evaporates, and each cylindrical solar cell 11 is heated by its vaporization heat. Is cooled, and the power generation efficiency is further improved.

  As another example of the block member 19, as shown in FIG. 10, for example, a water permeable layer 19a, a filter layer 19b, and a water retaining layer 19c have three layers, and the surface layer 19a is permeable to moisture when it rains. For example, the surface layer can be made of porous ceramics. The filter layer 19b is a layer that allows moisture such as rainwater that has passed through the surface layer to permeate into the water retaining layer and prevents softening due to the permeated moisture, and can be made of fine aggregate such as sand. The water retention layer 19c is a layer that retains moisture that has permeated, and can be composed of, for example, coal fly ash.

  Referring to FIG. 11, when a vibration such as an earthquake acts on the solar power generation device 10 on the installation surface 15, the solar power generation device 10 is not fixedly installed on the installation surface 15. It tries to move on the surface 15 in the direction of vibration. However, the installation surface 15 has a concave surface shape surrounded by a bottom surface 15a and a side surface 15b of the bottom surface for four weeks. In the first embodiment, the pebbles 16 are not shown in the second embodiment as shown in FIG. However, the pebbles 16 on the block material 19 are arranged in the installation surface 15 and surround the legs 13 of the solar power generation device 10.

  Therefore, even if a vibration such as an earthquake acts on the leg portion 13 of the solar power generation device 10 and the solar power generation device 10 tries to move on the installation surface 15 in various directions via the leg portion 13, a large number of pebbles 16 acts as a so-called damper that buffers the leg portion 13 in a direction that prevents the movement of the photovoltaic power generation apparatus 10. Therefore, it is suppressed that the solar power generation device 10 shifts | deviates with respect to the vibration.

DESCRIPTION OF SYMBOLS 10 Photovoltaic power generation device 11 Cylindrical solar cell 12 Frame body 13 Leg part 14 Power cable 15 Installation surface 16 Pebble 19 Block material

Claims (4)

A plurality of cylindrical solar cells are arranged and held by a frame in parallel or substantially parallel to each other at a required interval, and the plurality of legs attached to the frame are installed without being fixed on the installation surface. A power generator installation structure,
An installation surface on which the plurality of cylindrical solar cells held by the frame body are installed via the plurality of legs, and a large number of non-planar white systems arranged on the installation surface that are almost all different from each other An installation structure characterized by comprising pebbles.   The installation structure according to claim 1, wherein the pebbles are pebbles having a particle size of 0.1 to 5 cm made of a white granite main constituent. A plurality of cylindrical solar cells are arranged and held by a frame in parallel or substantially parallel to each other at a required interval, and the plurality of legs attached to the frame are installed without being fixed on the installation surface. A power generator installation structure,
The installation surface on which a plurality of cylindrical solar cells held by the frame are installed via the plurality of legs, and a plate-like material having water permeability and water retention disposed on the installation surface, An installation structure characterized by comprising a large number of pebbles having a particle size of 0.1 to 5 cm made of a white granite main constituent fixed on the plate-like material.   The plate-like material is made up of a plurality of block materials having water permeability and water retention, which are collectively arranged in a plane, and a plurality of the pebbles are embedded and fixed on the surface of each block material. The installation structure of Claim 3 arrange | positioned in the state which the remaining part protruded from each block material surface by required height.

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