JP6817380B1 - Sunlight focusing and diffusion panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photovoltaic condensing / diffusing panel which collects sunlight and diffuses it in a desired direction or directs it as it is, and efficiently irradiates a panel for photovoltaic power generation with sunlight to improve power generation efficiency. .. SOLUTION: The solar condensing / diffusing panel comprises one or a plurality of plates 100 having a plurality of protrusions 110 for condensing and diffusing sunlight, and the plates are formed with a condensing surface that receives sunlight. It is composed of a diffused surface that diffuses and radiates sunlight, and the protrusion is composed of a light-diffusing protrusion that protrudes toward the light-collecting surface side and a light-diffusing protrusion that protrudes toward the diffuser surface side. The top is made of a spherical protruding member with a horizontal cut, and the light diffusing protrusion is made of a protruding member of a pedestal circular stripe, and one or more plates are used to collect sunlight. One large panel is constructed by joining in parallel. [Selection diagram] Fig. 1

Description

The present invention relates to a panel that collects / diffuses sunlight for installation in a panel for photovoltaic power generation, and in particular, by condensing sunlight and diffusing it in a desired direction, or by directing it as it is. The present invention relates to a photovoltaic condensing / diffusing panel capable of efficiently irradiating a photovoltaic power generation panel with sunlight to improve the power generation efficiency and prevent contamination or damage of the photovoltaic power generation panel.

Conventionally, many panels for photovoltaic power generation have been developed and used since they were generalized. These are basically structures in which the photovoltaic power generation panel itself receives sunlight directly, and once the mounting angle and orientation of the photovoltaic power generation panel are determined, the rest is in a natural state with the movement of the sun. It is configured to receive light from the direction of the sun.

For example, in the case of a photovoltaic power generation panel for home use, the mounting position of the panel is fixed according to the slope and orientation of the roof of the house, so an efficient angle can be arbitrarily selected and changed according to the season and time zone. At present, it is impossible to do so, and the amount of power generation is limited by the specifications of the photovoltaic power generation panel. The efficiency is 18% on average for single crystal silicon type and 15% for polycrystalline silicon, which is not a high level, and there are many cases where it is difficult to obtain higher power generation efficiency.

The photovoltaic power generation panel improves power generation efficiency by shining sunlight on the panel at a right angle as much as possible, but in the conventional structure where a fixed type is usually used, sunlight is always irradiated perpendicular to the panel. It was impossible to make it. In particular, the height of the sun varies depending on the four seasons, and since the photovoltaic power generation panel is usually fixed, it is impossible to keep the angle of sunlight received throughout the four seasons, and it depends on the irradiation angle of the sun. The current situation is that waste is generated because the power generation efficiency is reduced.

Japanese Unexamined Patent Publication No. 2002-81760 is available as a technique for solving such a problem. Here, as a technology for enabling inexpensive and efficient daylighting, a daylighting system that tracks the sun by turning the turntable with a swivel motor and rotating the rotating arm with a swivel cylinder. Techniques for daylighting lenses are disclosed.

Certainly, according to this technology, it is possible to keep the angle at which the light receiving surface of the photovoltaic power generation panel receives sunlight at a constant level, but it is costly to manufacture and maintenance is performed when a system malfunction occurs. There was a problem that the labor cost for the system was large.

On the other hand, most of the photovoltaic power generation panels are made of crystalline silicon, but when the light receiving surface of the photovoltaic power generation panel becomes hot due to long-term irradiation of sunlight, the power generation efficiency tends to decrease. There is. There are cooling fan method, cooling water method, etc. as the heat dissipation device of such a panel for photovoltaic power generation, but if these are adopted, there are problems such as burden on the house due to weight, motor fan failure, and clogging of cooling water. There is also a problem that if an additional device is added to cool the panel, the cost will increase accordingly.

In recent years, panels have been developed for the purpose of protecting solar power generation panels and increasing power generation efficiency by installing lenses and covers on solar power generation panels and the like. In addition, a configuration in which a convex lens for condensing light is arranged on the panel is also common.

For example, Japanese Patent Application Laid-Open No. 2016-63207 provides a convex lens between solar panels and a solar panel below the solar panel as a technique for generating more efficient power generation with a small number of laying surfaces. A technique is disclosed in which a reflector is provided between the lower solar panels and a reflector that combines a chevron shape and a flat surface is provided under the convex lens.

By adopting such a convex lens shape, it is possible to collect light, so that the amount of light emitted to the photovoltaic power generation panel is maximized, but the amount of heat given to the photovoltaic power generation panel is increased accordingly. As a result, the temperature of the photovoltaic power generation panel becomes high, which causes a problem that the power generation efficiency drops. In the worst case, there is an inherent problem of damaging the cell for photovoltaic power generation.

In Japanese Patent Application Laid-Open No. 2017-108539, as an economical solar charging method for improving charging efficiency, a solar panel main body with a plurality of power generation cells and a plurality of transparent tough plate-shaped and light-collecting materials are provided. A technology relating to a solar unit consisting of a resin material (solar panel cover) with a convex lens-shaped protrusion and a solar fan with a small solar panel dedicated to driving another solar fan is disclosed. Here, a configuration is disclosed in which an aluminum plate material is provided outside the power generation cell frame of the main body of the solar panel to assist heat dissipation to prevent temperature rise and improve charging efficiency.

In such a configuration in which a large number of convex lenses are simply arranged, the number of convex lenses is excessive for one panel for photovoltaic power generation, which causes a problem that the manufacturing cost of the lens panel is high and the manufacturing time is long. In addition, the size standards for photovoltaic power generation panels are not unified, and each manufacturer manufactures its own size, so if panel covers are manufactured for each PV panel from different manufacturers, the cost will increase. There was a problem. On the other hand, in order to reduce the manufacturing cost, resin is mainly used as a material, but there is also a problem that deterioration due to ultraviolet rays shortens the service life. The unevenness of the panel also causes the accumulation of dirt, which has an inherent problem of affecting the power generation efficiency.

Therefore, by optimizing the irradiation angle of sunlight to the photovoltaic power generation panel, the maximum concentration is achieved, the power generation efficiency is improved, and all the photovoltaic power generation panels that protect the photovoltaic power generation panel are protected. It has been desired to develop a photovoltaic condensing / diffusing panel that can be installed in.

Japanese Unexamined Patent Publication No. 2002-81760 Japanese Unexamined Patent Publication No. 2016-63207 Japanese Unexamined Patent Publication No. 2017-108539

The present invention is a panel that collects / diffuses sunlight for installation on a panel for photovoltaic power generation, and in particular, a transparent plate with a convex shape for collecting / diffusing a plurality of light. By using it, the sunlight is collected and diffused in each desired direction, or it is made to go straight as it is, and the sunlight is efficiently irradiated to the photovoltaic power generation panel to improve the power generation efficiency, and the photovoltaic power generation panel is used. It is an object of the present invention to provide a photovoltaic condensing / diffusing panel that can be manufactured at low cost and can prevent contamination and damage.

In order to achieve the above object, the sunlight condensing / diffusing panel according to the present invention is a sunlight condensing / diffusing panel composed of one or a plurality of plates having a plurality of protrusions for condensing and diffusing sunlight. The plate is composed of a condensing surface that receives sunlight and a diffusing surface that diffuses and radiates sunlight located on the back side of the condensing surface, and the protrusion protrudes toward the condensing surface side. The light-diffusing protrusion is composed of a light-diffusing protrusion and a light-diffusing protrusion protruding toward the diffusion surface side. The light-diffusing protrusion is composed of a spherical projecting member whose crown is horizontally cut and the light diffusion. The protrusion is composed of a projecting member of a conical base having an inner angle of 45 degrees on the lower bottom , and one or a plurality of the plates are joined in parallel when condensing sunlight to form one large panel. It is a composition.

In addition, it is a configuration that adopts a one-touch block assembly method that can correspond to panels for photovoltaic power generation of different dimensions of each manufacturer by adjoining a plurality of plates in parallel when condensing sunlight.
Further, in order to increase the illuminance and area of the surface of the photovoltaic power generation panel exposed to light and to minimize the temperature rise of the surface exposed to light, the solar condensing / diffusing panel collects light by a condensing protrusion. The structure is such that the photovoltaic power generation panel is located at a distance of 2 to 3 times from the focal position of the light.

Further, since the solar condensing / diffusing panel cools the temperature of the surface of the photovoltaic power generation panel that is exposed to light, air can flow between the photovoltaic power generation panel and the solar condensing / diffusing panel. It is a configuration in which a gap is provided.
In addition, in order to cool the temperature of the surface of the photovoltaic power generation panel that is exposed to light, the photovoltaic power generation panel is provided with a ventilation guide plate at the top of the photovoltaic power generation panel, and heat is exchanged by the wind to exchange sunlight. It is configured to suppress the temperature rise of the power generation panel.

In addition, when condensing sunlight, the light that has passed through a special convex shape forcibly promotes diffusion, and by intersecting with the adjacent convex light, even and uniform light is applied to the photovoltaic power generation panel. It is a composition to give.
Further, the sunlight condensing / diffusing panel is made of resin.

Further, the sunlight condensing / diffusing panel has a configuration in which an acrylic plate is arranged on the plate in order to keep dust and dirt away from the protrusions.
Further, the sunlight condensing / diffusing panel has a configuration in which an ultraviolet ray-preventing (UV) resin is applied on the acrylic plate to prevent deterioration of the material of the protrusions over time to enhance the sustainability of light transmittance.

Further, the solar light collecting and diffusing panel is also configured to protect the photovoltaic power generation panel by mounting the plate and the acrylic plate that protects the plate on the photovoltaic power generation panel.

Since the present invention has the configuration as described in detail above, it has the following effects.
1. 1. Since the plate is provided with protrusions on the light-collecting surface that receives sunlight and the diffusion surface that diffuses and radiates sunlight, the sunlight passes through the protrusions by refraction and efficiently collects and diffuses to generate photovoltaic power. It is possible to irradiate the panel and increase the power generation efficiency.
2. 2. Since multiple plates can be combined, it is possible to support photovoltaic power generation panels with different dimensions for each manufacturer.

3. 3. Since the structure is located at a distance of 2 to 3 times the focal position of the light collected by the condensing protrusions on the plate of the photovoltaic power generation panel, the illuminance and area of the surface exposed to the light are expanded and the temperature rises. It can be minimized.
4. Since a gap is provided between the photovoltaic power generation panel and the photovoltaic power generation diffusion panel, air can flow in the gap, and the temperature of the photovoltaic power generation panel can be cooled at low cost.

5. Since the ventilation guide plate is attached to the uppermost part of the photovoltaic power generation panel, it is possible to increase the cooling efficiency of the temperature of the surface of the photovoltaic power generation panel exposed to light.
6. Since protrusions are provided on the light-collecting surface of the plate that receives sunlight and the diffusion surface that diffuses and radiates sunlight, it is possible to provide even and uniform light to the photovoltaic power generation panel.

7. Since the material of the plate of the solar light condensing diffusion panel is made of resin, it is possible to secure the strength.
8. Since the acrylic plate is arranged on the plate of the sunlight condensing / diffusing panel, it is possible to prevent dust and dirt from adhering to the protrusions and to facilitate cleaning.

9. Since the acrylic plate installed on the plate is coated with an ultraviolet protection (UV) resin, it is possible to prevent the plate from deteriorating over time.
10. Since the plate and the acrylic plate are mounted on the photovoltaic power generation panel, it is possible to more reliably protect the photovoltaic power generation panel.

Hereinafter, the solar light condensing diffusion panel according to the present invention will be described in detail based on the examples shown in the drawings. FIG. 1 is a plan view of the solar condensing / diffusing panel according to the present invention, and FIG. 2 is a central sectional view of the solar condensing / diffusing panel. FIG. 3 is an enlarged side view of the plate showing the sunlight irradiation approach direction, and FIG. 4 is a side view of the sunlight condensing / diffusing panel on which the acrylic plate is installed. FIG. 5 is a side view of the solar condensing / diffusing panel on which the ventilation guide plate is installed, and FIG. 6 is a plan view of the solar condensing / diffusing panel in a state where a plurality of the solar condensing / diffusing panels are connected. FIG. 7 is a side view of the solar condensing / diffusing panel formed in an arch shape, and FIG. 8 is a plan view of a plate having various shapes. FIG. 9 is a diagram showing an installation example of a sunlight condensing / diffusing panel on which a ventilation guide plate is installed.

As shown in FIG. 1, the solar condensing / diffusing panel 1 according to the present invention is composed of a plate 100 having a plurality of protrusions 110, and is installed on the photovoltaic power generation panel P in close contact with or at regular intervals. As a result, the plate 100 collects sunlight and irradiates and diffuses it toward the photovoltaic power generation panel P to improve the power generation efficiency regardless of the season and time of day, and also serves as a cover for the photovoltaic power generation panel P. It is a solar light collecting and diffusing panel that can prevent the adhesion and damage of dirt and the like.

The plate 100 is a module member that constitutes the solar light condensing / diffusing panel 1, and is composed of one or a plurality of small-area transparent block panels. In this embodiment, as shown in FIGS. 1 and 2, a plurality of protrusions 110 are provided on the surface. The protrusion 110 is a member for increasing the power generation efficiency of the photovoltaic power generation panel P by condensing sunlight and irradiating the photovoltaic power generation panel P with light traveling straight and / or diffusing. is there.

As shown in FIG. 2, the plate 100 includes a condensing surface 100F and a diffusing surface 100D. The condensing surface 100F is a surface located on the front side that directly or indirectly receives sunlight. Further, the diffusion surface 100D is a surface located on the back side where the sunlight received by the condensing surface 100F is diffused and radiated toward the photovoltaic power generation panel P.

As shown in FIG. 2, the plate 100 has a configuration in which a plurality of protrusions 110 are provided on both the light collecting surface 100F side and the diffusion surface 100D side. The protrusion 110 includes a light-diffusing protrusion 112 projecting toward the light-collecting surface 100F and a light-diffusing protrusion 114 projecting toward the diffusion surface 100D.

In this embodiment, the light-collecting protrusion 112 is composed of a spherical protruding member whose crown is horizontally cut, as shown in FIGS. 2 and 3. The light-collecting protrusion 112 is a protrusion-shaped member for collecting sunlight, and specifically, has a shape in which the crown side of a lens-shaped hemisphere is cut in a plane. It is desirable that the light collecting protrusion 112 has a shape in which the crown side of the hemisphere of the spherical R18 mm spherical protruding member is cut in a plane. With this shape, as shown in FIG. 3, the sunlight radiated perpendicularly to the plate 100 is radiated perpendicularly to the machined horizontal portion of the condensing protrusion 112, and that portion. As for, go straight without refracting. On the other hand, the light emitted from the plate 100 at an inclination angle can be refracted through the curved surface portion of the condensing protrusion 112 and condensed at a certain location. That is, it is possible to collect two types of light with one protrusion.

In this embodiment, the light diffusing protrusion 114 is composed of a protruding member of a truncated cone , as shown in FIGS. 2 and 3. It is desirable that the light diffusing protrusion 114 is a protruding member of a 45-degree truncated cone . With this shape, it is possible to diffuse the sunlight collected by the condensing protrusion 112 and irradiate the photovoltaic power generation panel P.

In this embodiment, when condensing sunlight, one large panel is formed by joining one or a plurality of plates 100 in parallel according to the size of the photovoltaic power generation panel P. This makes it possible to install and use the solar condensing / diffusing panel 1 according to the present invention on the photovoltaic power generation panel P having any size.

For example, the plate 100 of the solar condensing / diffusing panel 1 according to the present invention is arranged about 42 mm ahead of the position of the focal point of the focused sunlight with respect to the photovoltaic power generation panel P. In this embodiment, for irradiating light to the panel P for solar power generation in the area of 7 times to about 6 times the projection area 3.14 cm ² per one (24cm ^2). Light passing through the protrusion 100 having a diameter of 20 mm expands into a circle having a diameter of 56 mm. At that time, the pitch of the protrusions 100 is preferably 30 mm. The irradiation region overlaps with the light diffused and irradiated from the adjacent light diffusing protrusions 114. This makes it possible to evenly irradiate the photovoltaic power generation panel P with sunlight.

By arranging the plate 100 for condensing / light diffusion at a position at a certain distance in this way, the sunlight is radiated out of focus, so that the illuminance is performed as compared with the focal position. The illuminance of sunlight will decrease, but on the other hand, the amount of heat can be suppressed to a small amount.

In this embodiment, as shown in FIGS. 1 and 2, the plate 100 is composed of a square having a length and a width of 161 mm for easy handling, and each plate 100 has a condensing protrusion 112 having a diameter of 20 mm and a light diffusing protrusion. The portions 114 are installed at positions corresponding to the front and back of the plate 100, and a total of 25 pieces in 5 rows and 5 columns are evenly installed on the front and back of the plate 100. With this configuration, it is not necessary to arrange innumerable protrusions due to the light diffusion effect, and the efficiency of focusing / diffusion can be optimized, and the photovoltaic power generation panel P in which the solar focusing / diffusion panel 1 is installed can be used. It has become possible to maximize power generation efficiency. The size of the plate 100 and the number of light collecting protrusions 112 and light diffusing protrusions 114 installed are not limited to the above.

Further, the solar condensing / diffusing panel 1 according to the present invention adopts a block assembly method with one touch. That is, when condensing sunlight, as shown in FIG. 6, a plurality of plates 100 of the present invention are adjacently joined in parallel. Male and female combination ribs are installed on the vertical and horizontal sides of the plate 100, and they are combined and connected to each other to form one large solar light condensing and diffusing panel 1.

Further, as shown in FIG. 8, the plate 100 can be selected from any shape such as a square having a different size or a rectangle having a different size (for example, 161 × 161/105 × 105/30 × 30 /). 105 × 161/30 × 161/30 × 105, etc.), and by combining them, a wide variety of size adjustments are possible. In this way, by preparing several types of small plates and combining them, it becomes possible to support multiple sizes of photovoltaic power generation panels P, and photovoltaic power generation panels P consisting of different dimensions from various manufacturers. It has become possible to install the solar condensing / diffusing panel 1 on the photovoltaic power generation panel P of any size. In addition, when manufacturing a large panel, it is possible to manufacture it at less than half the cost compared to the one-piece production.

By adopting the solar condensing / diffusing panel 1 according to the present invention having the above configuration, it is possible to generate electricity in excess of the standard power generation amount of the photovoltaic power generation panel P, so that the installation area and the number of sheets can be minimized. .. According to the experimental results, it was possible to obtain an output about 1.5 times the amount of power generated by the manufacturer of the photovoltaic power generation panel P. Further, it is possible to manufacture the mold of the plate 100 in a small size, and the molding machine can be made small, so that it can be manufactured at low cost. Further, since it can be easily installed on the already installed photovoltaic power generation panel P, high output can be obtained only by installing the photovoltaic light condensing / diffusing panel 1 according to the present invention.

Examining the advantages of the photovoltaic light collecting and diffusing panel 1 according to the present invention, for example, if a photovoltaic panel having an average of about 4 kW per household is installed, the output of one photovoltaic panel is 250 w. 16 sheets are required for 4kW / 250w. Since the panel weight per panel is about 15 kg, 16 panels x 15 kg at 4 kW is 240 kg.

Since the mounting cradle average per 1 m ² is 7 kg, average area per one panel solar power manufacturers about 1.3 m ^2, 16 sheets of 20.8 m ^2, and the weight is about 145kg .. As a result, the total weight is 240 kg + 145 kg, which is 385 kg, so the impact on the house due to an earthquake or snowfall is not small.

According to the solar condensing / diffusing panel 1 according to the present invention, the amount of power generation is expected to be amplified by an average of 1.5 times as compared with that before the installation. Therefore, the solar condensing / diffusing panel 1 is attached to one panel for photovoltaic power generation. And 250 kW x 1.5 times, an output of 375 w can be obtained. As a result, 4 kW ÷ 375 w ≈ 11 panels can generate 4 kW.

Since the average panel weight per panel of each manufacturer is 15 kg, the panel weight is 165 kg with 15 kg × 11 panels, and a weight reduction of 75 kg can be realized with 240 kg-165 kg simply by using the photovoltaic power generation panel alone. As the number of panels for photovoltaic power generation is reduced, the mounting base is also lighter, and when calculated per stand, it is 145 kg ÷ 16 panels, which is 9 kg. By reducing 5 panels for photovoltaic power generation, 5 panels x 9 kg is 45 kg. It will be lighter.

If the reduced number of photovoltaic power generation panels is subtracted from the total weight of the photovoltaic light condensing / diffusing panel 1 before installation, the weight is 385 kg-75 kg-45 kg, which is 265 kg. When added, the weight of each photovoltaic light condensing / diffusing panel 1 is 2 kg, so 11 panels weigh 22 kg. It becomes weight. That is, 385 kg-287 kg can be lightened by 98 kg, which is about 100 kg, and the burden on the house can be reduced.

As a result, in the 4kW specification, 11 panels for photovoltaic power generation can generate power, and a high amount of power generation can be obtained even in a house with a small roof area. Actual area, since a 14.3M ² with ² × 11 sheets 1.3 ^m, it is possible to secure a space of 6.5m ² with 20.8m ² -14.3m 2. Further, if the solar condensing / diffusing panel 1 is attached to 16 conventional 4 kW specifications, a power generation amount of about 6 kW can be obtained.

The solar condensing and diffusing panel 1 according to the present invention is used for photovoltaic power generation at a distance of 2 to 3 times (30 to 45 mm in this embodiment) from the focal position of the light collected by the condensing protrusion 112. It is configured to be installed so that the panel P is located. With this configuration, when condensing sunlight, the light passing through the front and back protrusions 110 composed of the light-diffusing protrusions 112 and the light-diffusing protrusions 114 forcibly promotes diffusion, and the adjacent protrusions 100 Since it intersects with the light from the light source, even and uniform light can be given to the solar power generation panel P, and the irradiation region to the solar power generation panel P is diffused from the adjacent light diffusion protrusions 114. It will overlap with the irradiated light in the optimum state, and it will be possible to expand the illuminance and area of the surface of the solar power generation panel P that is exposed to the light and to minimize the temperature rise of the surface that is exposed to the light. became.

For example, among the panels for photovoltaic power generation, the polycrystalline type significantly reduces the power generation efficiency due to partial shade or the like. In order to make up for it even a little, uniform brightness and light are required for the photovoltaic power generation panel. With the above configuration, even in such a situation, the illuminance and area of the surface of the photovoltaic power generation panel exposed to light can be expanded, and even and uniform light can be provided to the photovoltaic power generation panel P. Is now possible.

The distance between the photovoltaic power generation panel P and the photovoltaic light collecting / diffusing panel 1 is not limited to the above, and it is of course possible to appropriately adjust and install the panel P according to the place of use and the like.

As shown in FIG. 5, the solar condensing / diffusing panel 1 has a configuration in which a gap 120 that enables air flow is provided between the photovoltaic power generation panel P and the solar condensing / diffusing panel 1. ing. In this embodiment, the plate 100 of the solar condensing / diffusing panel 1 is installed at a distance of about 50 mm from the photovoltaic power generation panel P, and the space formed between them is the photovoltaic power generation panel P. It serves as a ventilation port for cooling. With this configuration, it is possible to cool the temperature of the surface of the photovoltaic power generation panel P exposed to light, and it is possible to prevent and protect the photovoltaic power generation panel P from being damaged. Further, since air circulates, it becomes difficult for dust, dust, and dust to adhere to the panel P for photovoltaic power generation, and it is possible to prevent a decrease in the amount of power generation due to dirt and the like.

As shown in FIGS. 5 and 9, the solar light condensing / diffusing panel 1 according to the present invention has a configuration in which a ventilation guide plate 130 is further attached to the uppermost portion of the photovoltaic power generation panel P. With this configuration, the wind is efficiently collected to increase the amount of air flow in the void 120, and the air is passed over the photovoltaic power generation panel P to exchange heat and the temperature of the photovoltaic power generation panel P. It has become possible to suppress the rise and cool the temperature of the surface of the photovoltaic power generation panel P that is exposed to light.

In this embodiment, the solar light condensing diffusion panel 1 is made of resin. With this configuration, the strength of the sunlight condensing and diffusing panel 1 can be ensured, and weight reduction and mass production become possible. Further, in this embodiment, the sunlight condensing / diffusing panel 1 is molded of resin, and other parts such as the frame are made of aluminum. Although it is made lightweight as a result, it is not limited to resin or aluminum, and other materials capable of ensuring strength, preventing deterioration, and reducing weight can be appropriately selected and used.

In this embodiment, the sunlight condensing / diffusing panel 1 has a configuration in which an acrylic plate 140 is arranged on a plate 100 as shown in FIG. With this configuration, it is possible to prevent dust and dirt from adhering on the protrusion 110, particularly on the light collecting protrusion 112, and to facilitate cleaning.

As shown in FIG. 4, the solar light condensing diffusion panel 1 is further configured by applying an ultraviolet protection (UV) resin 142 on the acrylic plate 130. With this configuration, it is possible to prevent the protrusion 110 from deteriorating over time and to improve the sustainability of the light transmittance of the plate 100.

Further, as another embodiment, as shown in FIG. 7, the solar light condensing diffusion panel 1 according to the present invention can be arranged in an arch shape on the photovoltaic power generation panel P. With this configuration, it is possible to collect even sharper sunlight, such as when the sun is low, and the power generation start time for sunrise is early, and then power generation is performed until just before sunset, so it is possible to generate electricity for one day. It has become possible to further extend the power generation time.

As described above, in the photovoltaic power generation diffusion panel 1, the plate 100 and the acrylic plate 130 that protects the plate 100 are mounted on the photovoltaic power generation panel P to increase the power generation efficiency of the photovoltaic power generation panel P. At the same time, it has become possible to protect the panel P for photovoltaic power generation.

Top view of the solar condensing and diffusing panel according to the present invention Central sectional view of the solar condensing and diffusing panel Enlarged side view of the plate showing the direction of sunlight irradiation Side view of the sunlight condensing and diffusing panel with the acrylic plate installed Side view of the sunlight condensing and diffusing panel with the ventilation guide plate installed Top view of a solar light condensing and diffusing panel with multiple connected Side view of the arc-shaped solar light condensing diffusion panel Top view of plates of various shapes The figure which shows the installation example of the sunlight condensing diffusion panel which installed the ventilation guide plate

1 Solar Condensing Diffuse Panel 100 Plate 100F Condensing Surface 100D Diffusing Surface 110 Protrusions 112 Condensing Protrusions 114 Light Diffusing Projections 120 Voids 130 Ventilation Guide Plates 140 Acrylic Plates 142 UV Protection (UV) Resin P For Photovoltaic Power Generation panel

Claims (6)

In a sunlight condensing / diffusing panel (1) consisting of one or more plates (100) having a plurality of protrusions (110) for condensing and diffusing sunlight.
The plate (100) is composed of a condensing surface (100F) that receives sunlight and a diffusing surface (100D) that diffuses and radiates sunlight located behind the condensing surface, and the protrusion (110). ) Consists of a condensing protrusion (112) projecting toward the condensing surface side and a light diffusing projection (114) projecting toward the diffusing surface.
The condensing protrusion (112) is made of a spherical protruding member whose crown is horizontally cut, and the light diffusing protrusion (114) is a truncated cone having a lower bottom internal angle of 45 degrees. Consists of protruding members
A solar light condensing and diffusing panel characterized in that one large panel is formed by joining one or a plurality of the plates (100) in parallel when condensing sunlight. Adopting a block assembly method that can correspond to the panels for photovoltaic power generation of different dimensions of each manufacturer by adjoining a plurality of plates (100) of claim 1 in parallel when condensing sunlight. The solar light condensing and diffusing panel according to claim 1. The solar light condensing / diffusing panel according to claim 1 or 2 , wherein the solar condensing / diffusing panel (1) is made of resin. The solar collector diffusion panel (1) is, to claim 1, characterized in that a acrylic plate (140) on the plate to repel dust and dirt on the protrusion (110) The solar condensing / diffusing panel according to any one of claims 3 . In the sunlight condensing / diffusing panel (1), an ultraviolet protection (UV) resin (142) is applied onto the acrylic plate (140) in order to prevent deterioration of the material of the protrusion (110) over time. The solar condensing and diffusing panel according to claim 4 , wherein the transmittance is enhanced. The solar light condensing / diffusing panel (1) protects the photovoltaic power generation panel by mounting the plate (100) and the acrylic plate (140) that protects the plate (100) on the photovoltaic power generation panel. The solar light condensing / diffusing panel according to claim 4 or 5 .

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