Solar cell with assembled tessellation structure

Abstract

The present invention relates to a solar cell having an assembled tessellation structure, and more specifically, to a solar cell having an assembled tessellation structure that can be installed on an installation surface of various shapes including a curved surface, comprising: a unit cell formed as a polygonal plate, wherein an electrode receiving portion formed by a groove is formed in the direction of the edge from the center of the rear plate; and an electrode formed in a shape that fits the entire electrode receiving portion formed by the unit cells when two unit cells are continuously arranged to be in contact with the edge, wherein the unit cell and the electrode are continuously assembled by a Lego-style interlocking connection.

Description

Technology Field The present invention relates to a solar cell having an assembled tessellation structure, and more specifically, to a solar cell having an assembled tessellation structure that can be installed on an installation surface of various shapes including a curved surface. Background Technology Recently, as the need for developing new and renewable energy has increased to address the depletion of fossil fuels, environmental pollution, and the resulting global warming, solar cells capable of infinite renewal are attracting attention. Furthermore, new and renewable energy projects are being promoted even more rapidly in Korea following the announcement of the 'Renewable Energy 3020' policy, which aims to reduce the share of coal and nuclear power generation and increase the share of renewable energy generation, centered on solar and wind power, to 20% by 2030. In line with this trend, technology for generating energy by installing solar cell modules on the tops of structures such as buildings and vehicle sunroofs is advancing; however, conventional Glass-EVA (Ethylene Vinyl Acetate) based solar cell modules have faced difficulties in being placed on curved structures due to the material's characteristics making it difficult to implement flexible functions. As a prior art to solve these problems, a flexible solar cell has been developed by applying a lamination process using a conductive flexible substrate and a film printed with an electrode circuit, as described in Korean Registered Patent Publication No. 10-1775977 (Method for manufacturing a flexible solar cell module and a flexible solar cell module manufactured thereby). While the prior art has the advantage of being able to be placed on curved structures, it has the disadvantage of having poor durability as the solar cell cells constituting the solar cell are formed in a stacked form. Furthermore, in the prior art, the electrode circuit is designed with a series and parallel connection structure; however, in order to adopt a series connection structure, the part where the electrode circuit and the cell are connected in series must be formed thicker than the thickness of the cell, which has the disadvantage of requiring separate manufacturing depending on the installation environment and application. Therefore, there is an urgent need to develop a technology that improves upon this. Prior art literature

[0001] Korean Registered Patent Publication No. 10-1775977 (Method for manufacturing a flexible solar cell module and a flexible solar cell module manufactured thereby)

[0002] Korean Registered Patent Publication No. 10-0567331 (Lego-type dye-sensitized solar cell module)

[0003] Korean Registered Patent Publication No. 10-1470492 (Solar cell and solar cell block) The problem to be solved One objective of the present invention is to provide a solar cell with an assembled tessellation structure in which electrodes can be connected to a unit cell using Lego-style interlocking. In addition, another objective of the present invention is to provide a solar cell with an assembled tessellation structure in which the electrode is formed in a serpentine shape so that the entire solar cell structure, comprising the unit cell and the electrode, can be formed as a flexible planar body. In addition, another objective of the present invention is to provide a solar cell with an assembled tessellation structure that is formed to allow dye to be added during the manufacture of the unit cell, so that the unit cell can be realized in various colors. In addition, another objective of the present invention is to provide a solar cell with an assembled tessellation structure capable of applying a connection circuit suitable for the installation environment. means of solving the problem The present invention provides a solar cell with an assembled tessellation structure, comprising: a unit cell formed as a polygonal flat plate, wherein an electrode receiving portion formed by a groove is formed in the direction of the edge from the center of the rear flat plate; and an electrode formed in a shape that fits the entire electrode receiving portion formed by the unit cells when two unit cells are arranged in a continuous manner in contact with the edge, wherein the unit cells and the electrode are continuously assembled by a Lego-style interlocking connection. In the solar cell of the assembled tessellation structure according to the present invention, it is preferable that the electrode be formed in the shape of a serpentine, so that when the unit cell and the electrode are continuously assembled in a Lego-like manner, the entire structure is formed into a flexible planar body. In the solar cell of the assembled tessellation structure according to the present invention, it is preferable that the electrode receiving portion be connected by being arranged perpendicularly to the side from the center of the unit cell. In the solar cell of the assembled tessellation structure according to the present invention, the unit cell is preferably a solar cell of the assembled tessellation structure characterized by the ability to realize color by adding a dye to the back frame epoxy during manufacturing. In the solar cell of the assembled tessellation structure according to the present invention, it is preferable that the unit cell be a solar cell of the assembled tessellation structure characterized by having a shape selected from a triangle, a square, or a hexagon. Effects of the invention By providing the present invention, an assembled tessellation structure solar cell is provided, which facilitates the manufacturing of the solar cell by connecting the electrodes with a Lego-style interlocking connection. In addition, since the electrodes are formed in a serpentine shape, the structure formed by the unit cell and the electrodes is formed as a flexible planar body, thereby providing the effect of an assembled tessellation structure solar cell capable of curved arrangement. In addition, there is an effect of providing a solar cell with an assembled tessellation structure that is formed to allow dye to be added during unit cell manufacturing, thereby enabling the unit cells to be realized in various colors. In addition, since the electrodes and unit cells are formed with a tessellation structure and connected via Lego-style interlocking, there is an effect of providing a modular tessellation solar cell that allows the connection circuit to be selected and applied according to the installation environment. Brief explanation of the drawing FIG. 1 is a perspective view showing the assembly state of a unit cell and an electrode in an assembled tessellation structure solar cell according to the present invention. FIG. 2 is a rear view showing the state in which two unit cells and electrodes are assembled in an assembled tessellation structure solar cell according to the present invention. FIG. 3 is an embodiment showing the state in which a unit cell arranged in a tessellation structure is assembled with an electrode in a solar cell of the assembled tessellation structure according to the present invention. FIG. 4 is an embodiment of the solar cell of the assembled tessellation structure of the present invention installed on a curved surface. Figure 5 is a flowchart showing the assembly process of a solar cell with an assembled tessellation structure according to the present invention. FIG. 6 is a rear view showing an example in which a unit cell made of hexagons of the assembled tessellation structure solar cell of the present invention is combined with an electrode. FIG. 7 is a perspective view showing the configuration of electrodes in an assembled tessellation structure solar cell according to the present invention. Specific details for implementing the invention Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. Meanwhile, in the drawings and detailed description, the illustration and mention of configurations and operations that are easily recognizable by those skilled in the art from general solar cells, modules, cells, electrodes, etc., have been simplified or omitted. In particular, in the drawings and detailed description, detailed descriptions and illustrations of specific technical configurations and operations of elements not directly related to the technical features of the present invention have been omitted, and only the technical configurations related to the present invention have been briefly illustrated or described. The solar cell of the assembly-type tessellation structure of the present invention is composed of a unit cell (100) and an electrode (200), and is formed by continuously assembling the unit cell (100) and the electrode (200) by a Lego-style interlocking connection. The unit cell (100) has a polygonal flat plate shape, and an electrode receiving portion (110) is formed on the rear side. The electrode receiving portion (110) is formed in the direction of the edge at the center of the rear plate of the unit cell (100). At this time, the electrode receiving portion (110) can be connected by being positioned perpendicular to the side from the center of the unit cell (100). Additionally, the unit cell (100) can be encapsulated from the back frame to the front sheet to form a single piece, which can be done in a one-step process. At this time, the encapsulation material of the unit cell (100) may be made of a polymer. In addition, the unit cell (100) can be formed to enable color realization by adding a dye to the rear frame epoxy during manufacturing. When two unit cells (100) are arranged in a continuous manner to be in contact with each other, the electrode (200) is formed in a shape that fits into the entire electrode receiving portion (110) formed by the unit cells (100), thereby electrically connecting a plurality of unit cells (100). At this time, it is preferable that one end and the other end of the electrode (200) are each placed at the center of the electrode receiving portion (110) of the unit cell (100). In addition, the electrode (200) is formed in a serpentine shape, so when the unit cell (100) and the electrode (200) are assembled in a Lego-like manner, the entire structure can be formed into a flexible planar body. In this case, the serpentine shape can be explained as a wavy structure formed in a winding manner. These electrodes (200) can be formed by dividing them into a connecting part (210) and an electrode end (220). The connecting portion (210) may be formed of a metal having a serpentine shape and may be provided by encapsulating it with a polymer having elasticity. At this time, durability can be improved by encapsulating the metal connecting the electrode end (220). In addition, the connecting part (210) is preferably formed of a material that is advantageous for having low electrical resistance and elasticity in order to minimize electrical loss. The electrode end portion (220) is formed at both ends of the connecting portion (210) and can be fixed to the electrode receiving portion (110) formed on the rear surface of the unit cell (100). That is, the solar cell of the assembly type tessellation structure of the present invention is formed such that the unit cell (100) and the electrode (200) are each made into pieces, allowing for Lego-style interlocking, and can be formed into a solar cell structure when continuously assembled. A plurality of unit cells (100) of the present invention can be arranged in a continuous manner to form a tessellation structure. Tessellation is a structure in which planar shapes are arranged without overlapping or gaps, and it can be classified into regular tessellation, semi-regular tessellation, and non-regular tessellation. Among these, a regular tessellation refers to a tessellation composed of only one type of regular polygon, and the shapes forming the tessellation can be equilateral triangles, squares, or regular hexagons. In order for a plurality of unit cells (100) to form such a tessellation structure, they are formed in a polygonal shape, and the solar cell of the assembled tessellation structure according to the present invention is preferably formed in one of the selected shapes among triangles, squares, and hexagons that can form a regular tessellation structure among polygonal shapes. The solar cell of the assembled tessellation structure formed as described above is formed so that the electrode (200) can be joined to the unit cell (100) in a Lego-style manner, and since it is formed as a tessellation structure, the unit cell (100) and the electrode (200) can be connected in series, parallel, or series and parallel without regard to direction. That is, the solar cell of the assembled tessellation structure of the present invention is characterized by being formed to allow the selection and connection of one of the circuits, such as series, parallel, or series and parallel, depending on the installation environment. As an example, since sunlight is direct light, and in the case of a solar cell formed with a curved surface, the light irradiated to each unit cell is not uniform, so adopting a series connection circuit has the disadvantage of reduced output, so it is desirable to adopt a series-parallel connection circuit. At this time, in the solar cell of the assembled tessellation structure, the unit cells (100) are arranged in a tessellation structure, and the electrodes (200) are assembled by fitting them into the rear surface of the unit cells (100) in a Lego-like manner, thereby allowing the connection circuit to be selected and applied more freely. Although a solar cell with an assembled tessellation structure according to an embodiment of the present invention as described above has been illustrated in accordance with the above description and drawings, those skilled in the art will understand that this is merely an example and that various changes and modifications are possible within the scope of the technical spirit of the present invention. Explanation of the symbols 100 : Unit cell 110: Electrode receiving part 200 : Electrode 210 : Connection part 220 : Electrode end

Claims

Claim 1 A solar cell of an assembled tessellation structure comprising: a unit cell formed as a polygonal plate, wherein an electrode receiving portion formed by a groove is formed in the side direction from the center of the rear plate; and an electrode formed in a shape that fits the entire electrode receiving portion formed by the unit cells when two unit cells are continuously arranged in contact with the side, wherein the unit cell and the electrode are continuously assembled by a Lego-style interlocking connection, and the electrode is formed in a serpentine shape, so that when the unit cell and the electrode are continuously assembled in a Lego-style manner, the entire structure is formed as a flexible planar body. Claim 2 delete Claim 3 A solar cell of an assembled tessellation structure according to claim 1, wherein the electrode receiving portion is arranged and connected perpendicularly to the side from the center of the unit cell. Claim 4 A solar cell of an assembled tessellation structure according to claim 1, wherein the unit cell is capable of color realization by adding a dye to the rear frame epoxy during manufacturing. Claim 5 A solar cell of an assembled tessellation structure according to claim 1, wherein the unit cell is a shape selected from a triangle, a square, or a hexagon.

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