Arc-shaped light storage type solar cell panel structure

Abstract

The utility model discloses an arc-shaped light storage type solar cell panel structure which comprises an arc-shaped glass plate, a first light condensation fiber plate, a cell plate, a second light condensation fiber plate and a light storage plate which are sequentially attached from top to bottom in an arc-shaped surface mode, and strip-shaped inserting grooves are formed in the upper surface of the arc-shaped glass plate in a matrix mode. A light refraction plate is inserted in each strip-shaped inserting groove in an interference fit mode, a first optical fiber column and a second optical fiber column which penetrate through and are perpendicular to the panel are arranged in the first light condensation fiber plate and the second light condensation fiber plate, a plurality of square grooves distributed in a matrix mode are formed in the upper surface of the light storage plate, and the square grooves are filled with light storage materials. According to the utility model, the solar cell panel is arc-shaped, so that sunlight can be efficiently absorbed when the irradiation angle of the sunlight is inclined greatly, the irradiation angle of light is corrected by using the first light-condensing fiber board and the second light-condensing fiber board, more light is in contact with the vertical or nearly-vertical cell plate or is made of a light-storing material, and the light-condensing effect of the solar cell panel is improved. And the light storage efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic battery panel structures, in particular to an arc-shaped light-storage solar battery panel structure. Background Art

[0002] With the rapid development of the photovoltaic industry, its application areas are becoming increasingly broad, and market requirements for the reliability and conversion efficiency of photovoltaic modules are also increasing. Traditional solar modules typically consist of a stacked, sequentially arranged structure consisting of tempered glass, an upper EVA layer, solar cells, a lower EVA layer, and a PET backsheet, assembled together with an aluminum alloy frame. Therefore, the development of new technologies for double-glass solar cell modules, which utilize tempered glass instead of a PET backsheet and feature a double-tempered glass structure, has become a hot research and development trend in the photovoltaic field due to its advantages such as high strength, impermeability, excellent weather resistance, and long service life. However, the high light transmittance of the tempered glass backsheet prevents the effective utilization of light that passes through the gaps between the cells and reaches the lower EVA layer and lower tempered glass backsheet. Existing double-glass solar cell modules are mostly flat panels. As the angle of incident sunlight changes throughout the day, the light intensity received by the cells also varies. Especially in the morning or evening, when the sunlight is incident at a steep angle, the solar cell output power is significantly lower than that of direct sunlight at noon. The curved panel design improves sunlight absorption efficiency to a certain extent, but absorption efficiency is higher when the angle with the direct sunlight is small. However, if the angle between the side facing away from the sunlight does not increase, much light will have difficulty passing through the tempered glass surface, resulting in almost no light absorption on the other side. Light is generally not perpendicular to the surface of the solar panel, and due to the angle, the light will not directly reach the cells, resulting in lower light absorption efficiency. Utility Model Content

[0003] The present invention aims to at least partially address one of the technical problems in the related art. To this end, one objective of the present invention is to provide a curved solar cell structure that addresses the issues of low light absorption, such as the inability of the cell to maximize light absorption due to proportional reflection of light passing through the surface layer or the inability of light to penetrate the glass.

[0004] According to the present invention, a curved solar-storage solar panel structure comprises a curved glass plate, a first concentrating optical fiber plate, a solar cell plate, a second concentrating optical fiber plate, and a solar-storage plate, which are sequentially attached to each other with curved surfaces from top to bottom. The upper surface of the curved glass plate is provided with strip slots arranged in a matrix, and each of the strip slots is inserted into a refraction plate with an interference fit. The first and second concentrating optical fiber plates are provided with first and second optical fiber columns that penetrate and are perpendicular to the panels. The upper surface of the solar-storage plate is provided with a plurality of square grooves distributed in a matrix, and the square grooves are filled with solar-storage material.

[0005] The curved glass plate, the first concentrating optical fiber plate, the battery plate, the second concentrating optical fiber plate and the light storage plate are all bonded together around the contact surfaces with opaque glue, and the edges of the curved glass plate, the first concentrating optical fiber plate, the battery plate, the second concentrating optical fiber plate and the light storage plate are sealed with edge sealing glue.

[0006] In some embodiments of the present invention, the height of the deflecting plate is 2 / 3 of the thickness of the curved glass plate.

[0007] In other embodiments of the present invention, the curved glass plate, the first focusing optical fiber plate, the solar cell plate, the second focusing optical fiber plate and the light storage plate are all bonded together around the contact surface with opaque glue, leaving gaps between the plates, and the gap height is no more than 0.3 mm.

[0008] In other embodiments of the present invention, the curved glass plate, the first light-concentrating optical fiber plate, the solar cell plate, the second light-concentrating optical fiber plate and the light-storage plate are assembled in an inert gas environment, and the gaps are filled with inert gas.

[0009] In other embodiments of the present invention, the thickness of the first concentrating optical fiber board and the second concentrating optical fiber board are both 5-8 mm, and the thickness of the curved glass plate is 15-18 mm.

[0010] In other embodiments of the present invention, the distance between adjacent deflecting plates is 2-5 times the diameter of the first optical fiber column or the second optical fiber column.

[0011] In other embodiments of the present invention, the diameters of the first optical fiber rod and the second optical fiber rod are both 1-3 mm.

[0012] In the present invention, the solar cell panel is arc-shaped, which can ensure that the sunlight can be absorbed efficiently even when the angle of sunlight is inclined at a large angle. The refracting plate is used to refract the inclined sunlight as quickly as possible to penetrate into or reduce the angle with the first concentrating optical fiber board, thereby improving the efficiency of light passing through the arc-shaped glass plate. The first concentrating optical fiber board and the second concentrating optical fiber board are then used to correct the angle of light exposure, ensuring that more light contacts the solar cell board vertically or nearly vertically, and the tube passing through the solar cell board is vertically or nearly vertically incident on the light storage material, thereby improving the light storage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1The figure is a schematic cross-sectional view of an arc-shaped light-storage solar cell panel structure proposed by the present invention.

[0015] Figure 2 This is a schematic structural diagram of the curved glass plate proposed in the present invention.

[0016] Figure 3 This is a structural schematic diagram of the first light-concentrating optical fiber board proposed in the present invention.

[0017] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0018] Figure 5 for Figure 3 Schematic diagram of light refraction in cross section.

[0019] In the figure: 1. curved glass plate; 11. refraction plate; 2. first focusing optical fiber plate; 21. first optical fiber column; 3. battery plate; 4. second focusing optical fiber plate; 41. second optical fiber column; 5. light storage plate; 51. light storage material. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] Reference Figure 1-5 A curved solar-storage solar panel structure includes a curved glass plate 1, a first concentrating optical fiber plate 2, a solar cell plate 3, a second concentrating optical fiber plate 4, and a solar storage plate 5, which are sequentially attached to each other with an arc surface from top to bottom. The upper surface of the curved glass plate 1 is provided with strip slots distributed in a matrix, and each of the strip slots is inserted into a refractive plate 11 with an interference fit. The first concentrating optical fiber plate 2 and the second concentrating optical fiber plate 4 are provided with first and second optical fiber columns 21 and 41 that pass through and are perpendicular to the panels. The upper surface of the solar storage plate 5 is provided with a plurality of square grooves distributed in a matrix, and the square grooves are filled with solar storage material 51.

[0023] The curved glass plate 1, the first concentrating optical fiber plate 2, the battery plate 3, the second concentrating optical fiber plate 4 and the light storage plate 5 are all bonded together with opaque glue around the contact surfaces, and the edges of the curved glass plate 1, the first concentrating optical fiber plate 2, the battery plate 3, the second concentrating optical fiber plate 4 and the light storage plate 5 are sealed with edge sealing glue and reinforced with steel rings after edge sealing.

[0024] like Figure 1 , sunlight is obliquely irradiated onto the curved glass plate 1, and the leftmost side will be the best light-absorbing surface. On the middle and right surfaces, if the deflecting plate 11 is not provided, the middle side will have a larger angle with the first concentrating optical fiber board 2 on the lower layer, making it difficult for light to penetrate the first concentrating optical fiber board 2 to the maximum extent, and the light on the right is likely to not irradiate the first concentrating optical fiber board 2. However, through the deflecting plate 11, it can be seen that after several bends, the tube will irradiate the first concentrating optical fiber board 2 to a large extent, and the angle will also become smaller, which is more conducive to passing through the first concentrating optical fiber board 2 and improving the light exposure rate.

[0025] After light penetrates, if it does not directly irradiate the solar cell panel 3 vertically or nearly vertically, the efficiency of light absorption and conversion into electrical energy will also become low. Therefore, the first concentrating optical fiber board 2 is used to achieve direct light irradiation to the solar cell panel 3, maximizing the light absorption efficiency.

[0026] The light that passes through the solar cell plate 3 but is not absorbed is irradiated by the second optical fiber column 41 and is absorbed and stored in the light storage material 51. The light storage material 51 is a rare earth long afterglow light storage material.

[0027] The height of the deflecting plate 11 is 2 / 3 of the thickness of the curved glass plate 1. The strip-shaped slot cannot penetrate the curved glass plate 1, otherwise, the curved glass plate 1 is easy to break.

[0028] The curved glass plate 1, first light-concentrating fiber board 2, solar cell board 3, second light-concentrating fiber board 4, and light-storage board 5 are all bonded together around their contacting surfaces with opaque adhesive, leaving gaps no greater than 0.3 mm in height. The gaps are not filled with adhesive to improve light transmittance, which is achieved by properly sealing the edges. Due to the curved surface, warping is less likely to occur.

[0029] The curved glass plate 1, first concentrating optical fiber plate 2, solar cell plate 3, second concentrating optical fiber plate 4, and solar storage plate 5 are assembled in an inert gas environment, with the gaps filled with inert gas. Inert gas has low reactivity, so light strikes or scatters the inert gas, improving the uniform dispersion of light.

[0030] The thickness of the first and second focusing fiber boards 2 and 4 is 5-8 mm, and the thickness of the curved glass plate 1 is 15-18 mm. The length of the first and second fiber optic columns 21 and 41 is ensured to be above 5 mm, which basically achieves the effect of focusing and directing light.

[0031] The spacing between adjacent deflection plates 11 is 2-5 times the diameter of the first optical fiber column 21 or the second optical fiber column 41. The deflection plates 11 cannot be too densely distributed to avoid excessive refraction, which would affect light absorption and reflect back lost light.

[0032] The diameters of the first optical fiber rod 21 and the second optical fiber rod 41 are both 1-3 mm. They are commercially available and can be effectively arranged when manufacturing the first and second light-concentrating optical fiber panels 2 and 4. The first and second light-concentrating optical fiber panels 2 and 4 can be manufactured to a thickness of at least 3 cm before being cut into thin sheets.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An arc-shaped solar cell panel structure, characterized by: The invention comprises a curved glass plate (1), a first light-concentrating optical fiber plate (2), a solar cell plate (3), a second light-concentrating optical fiber plate (4) and a light-storage plate (5) which are sequentially attached to each other with curved surfaces from top to bottom, wherein the upper surface of the curved glass plate (1) is provided with strip slots distributed in a matrix, and each strip slot is inserted with a refractive plate (11) with an interference fit, and the first light-concentrating optical fiber plate (2) and the second light-concentrating optical fiber plate (4) are provided with a first optical fiber column (21) and a second optical fiber column (41) which penetrate and are perpendicular to the panel, and the upper surface of the light-storage plate (5) is provided with a plurality of square grooves distributed in a matrix, and the square grooves are filled with light-storage material (51); The curved glass plate (1), the first light-concentrating fiber plate (2), the battery plate (3), the second light-concentrating fiber plate (4) and the light-storage plate (5) are all bonded together around their contact surfaces using a light-proof adhesive, and the edges of the curved glass plate (1), the first light-concentrating fiber plate (2), the battery plate (3), the second light-concentrating fiber plate (4) and the light-storage plate (5) are sealed around their edges using an edge-sealing adhesive.

2. The arc-shaped solar cell panel structure according to claim 1, characterized in that: The height of the deflecting plate (11) is 2 / 3 of the thickness of the curved glass plate (1).

3. The arc-shaped solar cell panel structure according to claim 1, characterized in that: The curved glass plate (1), the first light-concentrating fiber plate (2), the battery plate (3), the second light-concentrating fiber plate (4) and the light-storage plate (5) are all bonded together around their contact surfaces using a light-proof adhesive, with gaps remaining between the plates, the gap height being no greater than 0.3 mm.

4. The arc-shaped light-storage solar cell panel structure according to claim 3, characterized in that: The curved glass plate (1), the first light-concentrating fiber board (2), the battery plate (3), the second light-concentrating fiber board (4) and the light-storage plate (5) are assembled in an inert gas environment, and the gaps are filled with inert gas.

5. The arc-shaped solar cell panel structure according to claim 1, characterized in that: The thickness of the first light-concentrating optical fiber board (2) and the second light-concentrating optical fiber board (4) are both 5-8 mm, and the thickness of the curved glass board (1) is 15-18 mm.

6. The arc-shaped light-storage solar cell panel structure according to claim 1, characterized in that: The distance between adjacent deflecting plates (11) is 2-5 times the diameter of the first optical fiber column (21) or the second optical fiber column (41).

7. The arc-shaped solar cell panel structure according to claim 6, characterized in that: The diameters of the first optical fiber column (21) and the second optical fiber column (41) are both 1-3 mm.

Images