Photovoltaic shingles and photovoltaic modules

Abstract

The utility model discloses a kind of photovoltaic cylinder tile and photovoltaic module, photovoltaic cylinder tile includes top plate, bottom plate and cell piece, cell piece is clamped between top plate and bottom plate, top plate has light transmission, the surface of top plate is equipped with at least one first coating, first coating extends along the circumference of top plate, top plate includes the first area and the second area of being located respectively at the two sides of first coating along the axial direction of top plate, first coating makes the step-like vision between the first area and the second area.Formation.Photovoltaic module includes photovoltaic cylinder tile and tile, the upper surface of tile is groove, the upper surface of the top plate of photovoltaic cylinder tile is convex, photovoltaic cylinder tile cover is arranged at the edge of tile.Photovoltaic cylinder tile is installed together by simulating multiple photovoltaic cylinder tile with the size of tile matched with the step-like visual texture, so that one photovoltaic cylinder tile can cooperate with at least two tiles when installing, the installation of at least two tiles is completed at one time, effectively improve the installation efficiency of photovoltaic cylinder tile and guarantee the overall aesthetic property after installation.

Description

Technical Field

[0001] This utility model relates to the field of solar power generation technology, and in particular to a photovoltaic tile and a photovoltaic module. Background Technology

[0002] Barrel tiles are an important roofing waterproofing material in traditional Chinese architecture. Combining barrel tiles with solar energy technology to create photovoltaic barrel tiles is an innovative architectural design concept that aims to combine the aesthetics of historical architecture with solar power generation technology. In current technology, the installation of photovoltaic barrel tiles requires a one-to-one correspondence between the photovoltaic barrel tiles and matching tiles to form a physically continuous, sealed, and power-generating waterproof roof layer. However, the matching tiles are often small, resulting in low overall installation efficiency. Therefore, improving the installation efficiency of photovoltaic barrel tiles and matching tiles while maintaining aesthetics is a problem that needs to be solved. Utility Model Content

[0003] This invention provides a photovoltaic tile and a photovoltaic module to solve at least one of the problems mentioned in the background art.

[0004] The photovoltaic barrel tile of this application includes a top plate, a bottom plate, and solar cells. The solar cells are sandwiched between the top plate and the bottom plate. The top plate is light-transmitting. The surface of the top plate is provided with at least one first coating. The first coating extends circumferentially along the top plate. The top plate includes a first region and a second region located on both sides of the first coating along the axial direction of the top plate. The first coating creates a stepped visual effect between the first region and the second region.

[0005] In the photovoltaic barrel tile of this application, one photovoltaic barrel tile can form the visual effect of at least two photovoltaic barrel tiles that match the size of the matching tile connected together. By simulating the visual texture such as color, texture, and shadow of multiple photovoltaic barrel tiles that match the size of the matching tile installed together, the photovoltaic barrel tile can cooperate with at least two matching tiles during installation, and complete the installation of at least two matching tiles at one time, which effectively improves the installation efficiency of the photovoltaic barrel tile and ensures the overall aesthetics after installation.

[0006] In some embodiments, there are multiple first coatings, which are spaced apart along the axial direction of the top plate.

[0007] In the above embodiment, multiple first coatings are arranged at intervals along the axial direction of the top plate, and the spacing between each first coating and its adjacent first coating is consistent. The photovoltaic barrel tile with multiple first coatings has a longer length in its axial direction, which can simulate the stepped visual effect formed by connecting and cooperating with multiple supporting tiles one by one, realize the one-time installation of one barrel tile and multiple supporting tiles, and maintain the overall aesthetics.

[0008] In some embodiments, the number of the first coatings is 2-3.

[0009] In the above embodiment, 2-3 first coatings are used in conjunction with 3-4 matching tiles to achieve one-time installation of photovoltaic barrel tiles and 3-4 matching tiles.

[0010] In some embodiments, the distance between two adjacent first coatings ranges from 180 to 200 mm.

[0011] In the above embodiment, the area of ​​the first region and the second region, determined by the spacing between two adjacent first coatings, allows a certain number of solar cells to be placed within this region, thereby ensuring the visual simulation and power generation efficiency of the photovoltaic barrel tile.

[0012] In some embodiments, the first coating is applied to the lower surface of the top plate.

[0013] In the above embodiment, the first coating is applied to the lower surface of the top plate to prevent the first coating from being eroded by direct exposure to ultraviolet rays, wind, rain and dust, and to prevent the rapid deterioration of the appearance of the photovoltaic tile.

[0014] In some embodiments, the photovoltaic tile further includes a second coating applied to the lower surfaces of the first region and the second region, the second coating being a different color from the first coating.

[0015] In the above embodiments, one photovoltaic barrel tile can simulate multiple photovoltaic barrel tiles that match the size of the matching tiles, so that one photovoltaic barrel tile can be installed with multiple matching tiles at the same time, which improves installation efficiency while ensuring the overall aesthetics of the photovoltaic barrel tile connection.

[0016] In some embodiments, the second coating covers the first coating, and the second coating covers the battery cell.

[0017] In the above embodiment, the second coating covers the first coating, and the second coating can provide further protection for the first coating, reduce the influence of internal factors of photovoltaic tiles on the first coating, and maintain the stepped visual effect formed by the first coating for a long time.

[0018] In some embodiments, the light transmittance of the second coating ranges from 50% to 80%.

[0019] In the above embodiments, the light transmittance of the second coating is 50%-80%. While achieving a harmonious and unified combination between the photovoltaic barrel tile and the matching tile, it also ensures that the light transmittance requirement for the photovoltaic barrel tile to achieve the photovoltaic effect is met, ensuring the realization of the most fundamental purpose of the photovoltaic barrel tile, so that the photovoltaic barrel tile has both aesthetic appeal and power generation function.

[0020] In some embodiments, the photovoltaic barrel tile has an axial dimension ranging from 300mm to 800mm.

[0021] In the above embodiments, the axial dimension of the photovoltaic barrel tile ranges from 300mm to 800mm. Under the premise of achieving the cooperation of one photovoltaic barrel tile with at least two matching tiles, the axial dimension of the photovoltaic barrel tile is avoided from being too long, so that the overall size of the photovoltaic barrel tile is controlled within a certain range, reducing the impact range of single-point failure of the photovoltaic barrel tile, preventing excessively long photovoltaic barrel tiles from increasing their replacement costs, and also facilitating production and installation, which is beneficial to the control of manufacturing and transportation costs.

[0022] This application also provides a photovoltaic module, including a photovoltaic barrel tile and a supporting tile according to any of the above embodiments, wherein the upper surface of the supporting tile is a groove, the upper surface of the top plate of the photovoltaic barrel tile is a convex surface, and the photovoltaic barrel tile covers the edge of the supporting tile.

[0023] In the above embodiment, the edge of the groove formed on the upper surface of the tile along the length of the tile matches the edge of the bottom plate of the photovoltaic barrel tile along its axial direction. The edge of the groove of the tile is connected to the surface of the bottom plate of the photovoltaic barrel tile away from the top plate, thereby covering the edge of the tile with the photovoltaic barrel tile to form a beautiful, safe and waterproof photovoltaic module.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a three-dimensional structural diagram of the photovoltaic cylindrical tile according to an embodiment of the present utility model; Figure 2 This is a cross-sectional schematic diagram of the photovoltaic cylindrical tile according to an embodiment of the present invention in the AA direction; Figure 3 This is a schematic diagram of the planar structure of a photovoltaic module according to an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures: 100-Photovoltaic barrel tile, 10-Top plate, 11-First coating, 111-First area, 112-Second area, 12-Second coating, 20-Base plate, 30-Battery cell, 40-Encapsulation film, 200-Distribution tile, 300-Photovoltaic module. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0032] Please see Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a three-dimensional structural diagram of the photovoltaic barrel tile 100 according to an embodiment of this utility model. Figure 2 This is a cross-sectional view of the photovoltaic barrel tile 100 according to an embodiment of the present invention along the AA direction. Figure 3 This is a schematic diagram of the planar structure of the photovoltaic module 300 according to an embodiment of the present invention.

[0033] The photovoltaic barrel tile 100 of this application includes a top plate 10, a bottom plate 20 and a solar cell 30. The solar cell 30 is sandwiched between the top plate 10 and the bottom plate 20. The top plate 10 is light-transmitting. The surface of the top plate 10 is provided with at least one first coating 11. The first coating 11 extends circumferentially along the top plate 10. The top plate 10 includes a first region 111 and a second region 112 located on both sides of the first coating 11 along the axial direction of the top plate 10. The first coating 11 forms a stepped visual effect between the first region 111 and the second region 112.

[0034] In the photovoltaic barrel tile 100 of this application, one photovoltaic barrel tile 100 can form the visual effect of at least two photovoltaic barrel tiles 100 that match the size of the matching tile 200 connected together. By simulating the visual texture such as color, texture, and shadow of multiple photovoltaic barrel tiles 100 that match the size of the matching tile 200 installed together, the photovoltaic barrel tile 100 can cooperate with at least two matching tiles 200 during installation, and complete the installation of at least two matching tiles 200 at one time, which effectively improves the installation efficiency of the photovoltaic barrel tile 100 and the overall aesthetics after installation.

[0035] Specifically, the photovoltaic barrel tile 100 is a photovoltaic product with a curved outer surface. The top plate 10 of the photovoltaic barrel tile 100 is a protective panel located on the top layer of the photovoltaic barrel tile 100 and directly exposed to the external environment. For example, the top plate 10 can be made of high-strength ultra-clear tempered glass or high-transmittance composite polymer material. As a surface that directly receives sunlight, the top plate 10 allows the maximum amount of sunlight to pass through and irradiate the solar cells 30 below, ensuring the high-efficiency power generation of the photovoltaic barrel tile 100. At the same time, the top plate 10 also serves as a protective barrier for the photovoltaic barrel tile 100, protecting the internal solar cells 30 and encapsulation film 40 from external environmental erosion and mechanical impacts such as rain, hail, and dust. Together with the bottom plate 20, it ensures the overall strength and rigidity of the photovoltaic barrel tile 100, protecting the internal components and ensuring the service life of the photovoltaic barrel tile 100. The surface of the top plate 10 has a structure, curved surface and texture that are coordinated with the structure and appearance of the matching tile 200. This is the key to the photovoltaic barrel tile 100 and the matching tile 200 being coordinated to form a beautiful and consistent whole.

[0036] The solar cell 30 is the basic unit that directly converts light energy into electrical energy. The solar cell 30 can be a monocrystalline or polycrystalline silicon crystalline solar cell 30. It can be manufactured using Perc (Passivated Emitter Rear Cell) technology, Topcon (Tunnel Oxide Passivated Contact) technology, or BC (Back Contact) technology. After pressing, the solar cell 30 can be curved to match the curved surface formed by the top plate 10 and the bottom plate 20.

[0037] The base plate 20 is located at the bottom of the photovoltaic tile 100 and serves as a backplate for structural support, electrical insulation, and sealing protection. For example, the base plate 20 can be a composite backplate or a glass backplate. As another surface of the photovoltaic tile 100 that is in direct contact with the external environment, the base plate 20 prevents moisture, dust, and other contaminants from intruding from the back, protecting the solar cells 30 and internal circuits from moisture and corrosion, and ensuring the long-term reliability of the photovoltaic tile 100. Both the base plate 20 and the top plate 10 are curved plates. The base plate 20 and the top plate 10 are encapsulated together with the solar cells 30 using an encapsulating film 40, forming a photovoltaic tile 100 with good electrical insulation performance and a robust structure.

[0038] The first coating 11 located on the inner surface of the top plate 10 is a functional ink layer prepared by inkjet printing or other precision printing processes. The first coating 11 extends and is applied to the circumference of the top plate 10, forming a first region 111 and a second region 112 arranged side by side in the axial direction of the top plate 10 and separated by the first coating 11. Each first region 111 and the second region 112 corresponds to a solar cell 30. At least one first coating 11 is applied to a portion of the circumferential surface of the top plate 10. The color difference between the first coating 11 and the first region 111 and the second region 112 causes the first region 111 and the second region 112 on the top plate 10 to visually form a stepped shadow area with the first coating 11. This area is consistent with the stepped visual shape formed between the two photovoltaic barrel tiles 100. The size of the first region 111 and the second region 112 matches the size of the supporting tile 200 installed in conjunction with the photovoltaic barrel tile 100.

[0039] In this way, one photovoltaic barrel tile 100 can form the visual effect of at least two photovoltaic barrel tiles 100 that match the size of the matching tile 200 connected together. During installation, one photovoltaic barrel tile 100 and multiple matching tiles 200 are installed at the same time. While ensuring the aesthetics of the photovoltaic barrel tile 100 installation, the installation efficiency of the photovoltaic barrel tile 100 is greatly improved. This ensures the visual consistency and uniformity of the connection between the photovoltaic barrel tile 100 and the matching tile 200, and ensures the harmonious and beautiful visual effect presented after the photovoltaic barrel tile 100 is installed.

[0040] Please see Figure 2 In some embodiments, there are multiple first coatings 11, and the multiple first coatings 11 are arranged at intervals along the axial direction of the top plate 10.

[0041] In the above embodiment, multiple first coatings 11 are arranged at intervals along the axial direction of the top plate 10. The spacing between each first coating 11 and its adjacent first coating 11 is consistent. The photovoltaic barrel tile 100 with multiple first coatings 11 has a longer length in its axial direction, which can simulate the stepped visual effect formed by connecting and cooperating with multiple matching tiles 200 one by one, realize the one-time installation of a barrel tile and multiple matching tiles 200, and maintain the overall aesthetics.

[0042] Specifically, multiple first coatings 11 are arranged at intervals along the axial direction of the top plate 10, that is, multiple first coatings 11 are applied along the axial length direction of the photovoltaic barrel tile 100, which is also the direction in which two different photovoltaic barrel tiles 100 overlap, in a regular, intermittent strip pattern. This forms regular shadow lines on the top plate 10 of the photovoltaic barrel tile 100, simulating the shadow at the overlap of two photovoltaic barrel tiles 100, creating a visual difference with the first area 111 and the second area 112, and creating a three-dimensional step-like optical illusion on a two-dimensional plane. By applying multiple uniformly spaced first coatings 11 to the top plate 10 of a certain size according to the size of the matching tiles 200 that cooperate with the photovoltaic barrel tile 100, the surface of a single photovoltaic barrel tile 100 can form a consistent shadow visual effect with the connection of multiple matching tiles 200. This ensures the consistent aesthetics of the photovoltaic barrel tile 100 after installation and significantly improves the installation efficiency of the photovoltaic barrel tile 100.

[0043] Multiple first coatings 11 are arranged at intervals. The first coatings 11 can be sprayed on the physical gap between the two rows of battery cells 30, which not only forms a realistic overlapping shadow line on the surface of the top plate 10, but also avoids the power generation area of ​​the battery cells 30, ensuring that the first coatings 11 will not affect the power generation effect of the battery cells 30, thus realizing the combination of aesthetics and power generation function in space.

[0044] Please see Figure 1 In some embodiments, the number of first coatings 11 is 2-3.

[0045] In the above embodiment, 2-3 first coatings 11 are used in conjunction with 3-4 matching tiles 200 to achieve the installation of photovoltaic barrel tile 100 and 3-4 matching tiles 200 in one go.

[0046] Specifically, on the top plate 10 of a photovoltaic barrel tile 100, the total number of first regions 111 and second regions 112, formed by 2-3 first coatings 11, is 3-4. Controlling the number of first coatings 11 to 2-3 ensures the simultaneous installation of one photovoltaic barrel tile 100 with 3-4 supporting tiles 200, while maintaining the power generation efficiency of the photovoltaic barrel tile 100. It also prevents excessive first coatings 11 from causing overly dense stepped shadow stripes, weakening the contrast between light and dark, and thus losing its simulation characteristics. The visual effect formed at the overlap of the 2-3 first coatings 11 and the 3-4 supporting tiles 200 is consistent, visually creating a harmonious whole where the photovoltaic barrel tile 100 and the supporting tiles 200 complement each other.

[0047] Please see Figure 1 In some embodiments, the distance between two adjacent first coatings 11 ranges from 180mm to 200mm.

[0048] In the above embodiment, the area of ​​the first region 111 and the second region 112, determined by the spacing between two adjacent first coatings 11, allows a certain number of solar cells 30 to be placed in this region, thereby ensuring the visual simulation and power generation efficiency of the photovoltaic barrel tile 100.

[0049] Specifically, on a single photovoltaic tile 100, or a single photovoltaic glass tile, the distance between the first coating 11 of two adjacent tiles 200 overlapping seams is 180mm-200mm. This distance matches the required encapsulation size of the solar cell 30, ensuring that the solar cell 30 can be smoothly installed into the first region 111 or the second region 112 formed between the two first coatings 11. It also ensures that the encapsulation film 40 between the top plate 10 and the bottom plate 20 can be uniformly and fully compacted, allowing the solar cell 30 to be encapsulated in the corresponding first region 111 or second region 112, avoiding bubbles or delamination at the edges of the first coating 11. Furthermore, the first region 111 and the second region 112, determined by the spacing between two adjacent first coatings 11, allow a certain number of solar cells 30 to be placed side-by-side within this region, thereby maximizing the power generation efficiency of that region.

[0050] Please see Figure 1 and Figure 2 In some embodiments, the first coating 11 is applied to the lower surface of the top plate 10.

[0051] In the above embodiment, the first coating 11 is applied to the lower surface of the top plate 10 to prevent the first coating 11 from being eroded by direct exposure to ultraviolet rays, wind and rain and sand and dust, and to prevent the rapid deterioration of the appearance of the photovoltaic barrel tile 100.

[0052] Specifically, the top plate 10 provides sealing and protection for the internal structure of the photovoltaic barrel tile 100. The color and pattern of the first coating 11 do not undergo significant fading or aging during the product lifecycle of the photovoltaic barrel tile 100. No maintenance is required for the first coating 11 during the lifecycle of the photovoltaic barrel tile 100, reducing the overall maintenance cost and extending its service life. Furthermore, the first coating 11 is located on the lower surface of the top plate 10. Light passes through the top plate 10, reflects off the first coating 11, and then passes through the top plate 10 before being observed by the human eye. This can, to some extent, avoid the reflectivity or roughness that might occur when coating the upper surface, resulting in a more realistic stepped texture and enhancing the aesthetics of the photovoltaic barrel tile 100.

[0053] Please see Figure 1 In some embodiments, the photovoltaic barrel tile 100 further includes a second coating 12 applied to the lower surfaces of the first region 111 and the second region 112, the color of the second coating 12 being different from the color of the first coating 11.

[0054] In the above embodiments, one photovoltaic barrel tile 100 can simulate multiple photovoltaic barrel tiles 100 that match the size of the matching tile 200, so that one photovoltaic barrel tile 100 can be installed with multiple matching tiles 200 at the same time, which improves the installation efficiency while ensuring the overall aesthetics of the connection between the photovoltaic barrel tile 100 and the matching tile 200.

[0055] Specifically, the second coating 12 covers the lower surfaces of the first region 111 and the second region 112, and is connected to the first coating 11, forming a single coating layer on the lower surface of the top plate 10. The color of the coating applied to the first region 111 and the second region 112 corresponds to the color of the matching tile 200 that matches the photovoltaic barrel tile 100, so that the photovoltaic barrel tile 100 and the matching tile 200 match in color, forming a unified and harmonious appearance. The color of the first coating 11 is different from the color of the second coating 12. Based on the color of the second coating 12, the first coating 11 needs to have a certain sense of shadow and texture, etc., to simulate the stepped visual effect formed at the actual overlap of the two photovoltaic barrel tiles 100.

[0056] Please see Figure 1 In some embodiments, the second coating 12 covers the first coating 11 and the second coating 12 covers the battery cell 30.

[0057] In the above embodiment, the second coating 12 covers the first coating 11, and the second coating 12 can provide further protection for the first coating 11, reduce the influence of internal factors of the photovoltaic barrel tile 100 on the first coating 11, and maintain the stepped visual effect formed by the first coating 11 for a long time.

[0058] Specifically, the second coating 12 covers the first coating 11. After the first coating 11 is applied to the lower surface of the top plate 10 to form a stepped visual simulation, the second coating 12 is applied to the entire lower surface of the top plate 10, including the position of the first coating 11. The color of the second coating 12 does not affect the stepped visual effect presented by the first coating 11 on the upper surface of the top plate 10. The color of the second coating 12 is set according to the color of the tile 200, so that the photovoltaic barrel tile 100 as a whole and the multiple tiles 200 that cooperate with it form a harmonious and unified appearance.

[0059] Please see Figure 1 In some embodiments, the light transmittance of the second coating 12 ranges from 50% to 80%.

[0060] In the above embodiment, the light transmittance of the second coating 12 is 50%-80%. While achieving a harmonious and unified cooperation between the photovoltaic barrel tile 100 and the matching tile 200, it also ensures that the light transmittance requirement for the photovoltaic barrel tile 100 to achieve photovoltaic function is met, ensuring the realization of the most fundamental purpose of the photovoltaic barrel tile 100, so that the photovoltaic barrel tile 100 has both aesthetics and power generation function.

[0061] Specifically, the transmittance of the second coating 12 is the ratio of the luminous flux in the visible light band transmitted through the top plate 10 and the second coating 12 under light source illumination to the luminous flux of visible light incident on the surface of the top plate 10 of the photovoltaic tile 100. In the embodiments of this application, the transmittance of the second coating 12 ranges from 50% to 80%. The number of first coatings 11 determines the percentage of the total area of ​​the first coatings 11 to the entire area of ​​the top plate 10. The spacing between two adjacent first coatings 11 determines the width of the high-transmittance power generation area. A wider spacing means a larger light-transmitting area and a higher transmittance.

[0062] When the light transmittance is within the range of 50%-80% and close to 50%, the power generation efficiency of the photovoltaic barrel tile 100 is relatively low; when the light transmittance is within the range of 50%-80% and close to 80%, the power generation efficiency of the photovoltaic barrel tile 100 is high. It should be noted that, with the same material for the top plate 10 and the same area for the first region 111 and the second region 112, the light transmittance is mainly affected by the second coating 12 applied to the first region 111 and the second region 112. When the color of the coating on the second coating 12 is different, the light transmittance of the first region 111 and the second region 112 will differ. For example, the color of the second coating 12 includes, but is not limited to, red, blue, and yellow. By setting the light transmittance range to 50%-80% and reasonably setting the number of the first coatings 11 according to requirements, the photovoltaic barrel tile 100 can be made to have sufficient simulation and sufficiently high power generation efficiency.

[0063] Please see Figure 1In some embodiments, the photovoltaic barrel tile 100 has a dimension ranging from 300mm to 800mm along its axial direction.

[0064] In the above embodiment, the axial dimension of the photovoltaic barrel tile 100 ranges from 300mm to 800mm. Under the premise of achieving the cooperation of one photovoltaic barrel tile 100 with at least two matching tiles 200, the axial dimension of the photovoltaic barrel tile 100 is avoided to be too long, so that the overall size of the photovoltaic barrel tile 100 is controlled within a certain range, reducing the impact range of single-point failure of the photovoltaic barrel tile 100, preventing the replacement cost from being increased due to excessively long photovoltaic barrel tiles 100, and also facilitating production and installation, which is conducive to the control of manufacturing and transportation costs.

[0065] Specifically, when the axial dimension of the photovoltaic barrel tile 100 is close to 300mm in the range of 300mm-800mm, the overall size of the photovoltaic barrel tile 100 is smaller, the number of first coatings 11 that can be applied is less, the simulation degree will be relatively reduced, and on the same area of ​​the installation plane, more photovoltaic barrel tiles 100 are required, and there are more installation fixing points between photovoltaic barrel tiles 100. The probability of connection failure may be higher than when the axial dimension of the photovoltaic barrel tile 100 is close to 800mm.

[0066] When the axial dimension of the photovoltaic barrel tile 100 is within the range of 300mm-800mm, approaching 800mm, the connection failure rate of the photovoltaic barrel tile 100 is lower, and a larger number of first coatings 11 can be installed, resulting in higher simulation accuracy. However, larger photovoltaic barrel tiles 100 are not conducive to installation, and the tensile and bending stresses generated by the top plate 10, bottom plate 20, and solar cells 30 of larger photovoltaic barrel tiles 100 are relatively greater. Moreover, when the temperature changes, the shear stress generated between the different materials of the photovoltaic barrel tile 100 due to different amounts of expansion or contraction is greater, which is detrimental to the connection safety of the photovoltaic barrel tile 100. Therefore, setting the axial dimension of the photovoltaic barrel tile 100 within the range of 300mm-800mm allows for visual simulation of the photovoltaic barrel tile 100 while ensuring long-term stable electrical connection.

[0067] Please see Figure 3 This application also provides a photovoltaic module 300, including a photovoltaic barrel tile 100 and a distribution tile 200 according to any of the above embodiments. The upper surface of the distribution tile 200 is a groove, the upper surface of the top plate 10 of the photovoltaic barrel tile 100 is a convex surface, and the photovoltaic barrel tile 100 covers the edge of the distribution tile 200.

[0068] In the above embodiment, the edge of the groove formed on the upper surface of the tile 200 along the length direction of the tile 200 matches the edge of the bottom plate 20 of the photovoltaic barrel tile 100 along its axial direction. The edge of the groove of the tile 200 is connected to the surface of the bottom plate 20 of the photovoltaic barrel tile 100 away from the top plate 10, thereby covering the edge of the tile 200 with the photovoltaic barrel tile 100 to form a beautiful, safe and waterproof photovoltaic module 300.

[0069] Specifically, the tile 200 can be a clay tile. In the photovoltaic module 300, the high-efficiency power generation area can be covered by the photovoltaic barrel tile 100, and the low-efficiency power generation area can be filled by the lower-cost tile 200. The photovoltaic module 300 achieves its power generation function and macroscopic visual consistency by combining the photovoltaic barrel tile 100 with standard traditional clay tiles in a certain proportion and manner. Under the premise of meeting the requirements of visual simulation, the total cost of the photovoltaic module 300 is reduced and the overall installation efficiency is improved.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0071] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A photovoltaic cylindrical tile, characterized in that, The device includes a top plate, a bottom plate, and battery cells, with the battery cells sandwiched between the top plate and the bottom plate. The top plate is translucent, and its surface is provided with at least one first coating. The first coating extends circumferentially along the top plate, and the top plate includes a first region and a second region located on both sides of the first coating along the axial direction of the top plate. The first coating creates a stepped visual effect between the first region and the second region.

2. The photovoltaic cylindrical tile according to claim 1, characterized in that, The number of the first coatings is multiple, and the multiple first coatings are arranged at intervals along the axial direction of the top plate.

3. The photovoltaic cylindrical tile according to claim 2, characterized in that, The number of the first coating is 2-3.

4. The photovoltaic cylindrical tile according to claim 2, characterized in that, The distance between two adjacent first coatings ranges from 180mm to 200mm.

5. The photovoltaic cylindrical tile according to claim 1, characterized in that, The first coating is applied to the lower surface of the top plate.

6. The photovoltaic cylindrical tile according to claim 5, characterized in that, The photovoltaic cylindrical tile also includes a second coating applied to the lower surface of the first region and the second region, the second coating having a different color than the first coating.

7. The photovoltaic cylindrical tile according to claim 6, characterized in that, The second coating covers the first coating, and the second coating covers the battery cell.

8. The photovoltaic cylindrical tile according to claim 6, characterized in that, The light transmittance of the second coating ranges from 50% to 80%.

9. The photovoltaic cylindrical tile according to claim 1, characterized in that, The photovoltaic cylindrical tile has an axial dimension ranging from 300mm to 800mm.

10. A photovoltaic module, characterized in that, include: The photovoltaic barrel tile according to any one of claims 1-9; and The photovoltaic barrel tile has a grooved upper surface and a convex upper surface on the top plate. The photovoltaic barrel tile covers the edge of the photovoltaic barrel tile.

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