Photovoltaic tile, photovoltaic tile assembly and roof photovoltaic system

Abstract

The application discloses a photovoltaic tile, a photovoltaic tile assembly and a roof photovoltaic system, and belongs to the technical field of photovoltaic power generation. The photovoltaic tile comprises a photovoltaic plate, a mounting plate and a first mounting structure. The photovoltaic plate comprises a bottom plate layer. The mounting plate is mounted on one side of the bottom plate layer. The first mounting structure is formed by bending one edge of the mounting plate. The first mounting structure and the photovoltaic plate enclose a groove with an opening. An electrical connecting piece is electrically connected with the photovoltaic plate and arranged in the groove. The mounting plate is bent to enclose the groove with the photovoltaic plate, and the electrical connecting piece is arranged in the groove, so that the requirements of installation convenience, electrical safety and appearance beauty are met.

Description

Technical Field

[0001] This application belongs to the field of photovoltaic power generation technology, specifically relating to a photovoltaic tile, a photovoltaic tile module, and a rooftop photovoltaic system. Background Technology

[0002] In the field of building-integrated photovoltaics (BIPV), photovoltaic (PV) tiles, as an innovative product combining solar power generation with building roofing material functions, have been widely used in recent years. In traditional PV tile designs, to achieve easy maintenance (facilitating inspection and replacement), electrical connections are often placed directly on the product surface. However, this has significant drawbacks: firstly, exposed electrical connections severely compromise the product's cleanliness and aesthetics; secondly, exposed electrical connections lack effective protection, making them susceptible to interference from external environmental factors and compromising reliability. Conversely, if electrical connections are placed on the underside of metal plates or other components to achieve aesthetic or protective effects, perforations in the metal plate are usually required for electrical connection. This not only compromises the structural integrity of the metal plate, reducing its strength and protective performance, but also increases processing complexity.

[0003] Therefore, neither exposed nor perforated concealed electrical connection structures can simultaneously meet the requirements of maintainability of electrical connectors, ease of installation, neat appearance, and minimal perforation. Utility Model Content

[0004] The present invention aims to at least solve the problem in the related technology that photovoltaic tiles cannot simultaneously achieve the maintainability of electrical connectors, ease of installation, neat appearance, and minimal perforation.

[0005] To this end, the first aspect of this utility model provides a photovoltaic tile, comprising: a photovoltaic panel, including a base plate layer; a mounting plate, mounted on one side of the base plate layer; a first mounting structure, formed by bending one edge of the mounting plate, wherein the first mounting structure and the photovoltaic panel enclose a groove with an opening; and an electrical connector, electrically connected to the photovoltaic panel and disposed within the groove.

[0006] The photovoltaic tile provided by this utility model includes a photovoltaic panel, a mounting plate, a first mounting structure, and electrical connectors. The mounting plate is installed at the bottom of the photovoltaic panel to support its weight and improve the overall strength of the photovoltaic tile. The first mounting structure is formed by bending one end of the mounting plate, creating an open groove around the photovoltaic panel. The electrical connectors are located within the groove and can be electrically connected to the photovoltaic panel. The electrical connectors include a junction box. Because the electrical connectors are built into the groove, there is no need to reserve exposed space for the junction box or cables on the back and outer surface of the photovoltaic tile. This avoids the problems of uneven surface and dust accumulation in gaps caused by protruding junction boxes or cable perforations in traditional solutions, resulting in a simpler and more uniform overall appearance of the photovoltaic tile. At the same time, the groove avoids drilling holes in the photovoltaic panel or mounting plate to fix the electrical connectors, reducing stress concentration and moisture penetration caused by perforations, and extending the service life of the photovoltaic tile. Furthermore, when electrical connections need to be inspected or replaced, the operation can be performed quickly simply through the opening in the groove, without disassembling the photovoltaic tile body or damaging the external structure. This solves the problem of difficult maintenance caused by the external or deeply hidden junction boxes of traditional photovoltaic tiles, improving maintenance efficiency while ensuring electrical safety. Therefore, this application bends the mounting plate to form a groove around the photovoltaic panel, with the electrical connections built into the groove, thus balancing the needs for convenient installation, electrical safety, and aesthetic appearance.

[0007] In some embodiments, optionally, the photovoltaic tile further includes: a second mounting structure formed by bending the mounting plate on the other side opposite to the first mounting structure, the second mounting structure being bent on one side along the thickness direction of the mounting plate, and the first mounting structure being bent on the other side along the thickness direction of the mounting plate; wherein the opening faces the second mounting structure, and when the photovoltaic tile overlaps with another photovoltaic tile, the second mounting structure covers at least part of the opening of the other photovoltaic tile.

[0008] Thus, one edge of the mounting plate is bent to form the sidewall of the groove, while the opposite edge is bent in the opposite direction. Specifically, the second mounting structure is bent along one side of the mounting plate's thickness direction, and the first mounting structure is bent along the other side of the mounting plate's thickness direction; that is, the bending directions of the two edges of the mounting plate are opposite, thereby forming the first mounting structure and the second mounting structure. This symmetrical bidirectional bending design allows the mounting structures of adjacent photovoltaic tiles to interlock or nest with each other when they overlap, forming a more stable mechanical connection.

[0009] Meanwhile, the first installation structure provides basic shielding for the internal electrical connectors, preventing direct sunlight or dust accumulation. The adjacent photovoltaic tile can shield the opening of the groove, thereby preventing rainwater and sand from directly contacting the electrical connectors. This improves the waterproof and dustproof performance of the photovoltaic tile module, and also effectively reduces the risk of failure of the electrical connectors due to moisture, corrosion or short circuits caused by foreign objects. This enhances the long-term reliability of photovoltaic tile power generation, enabling the photovoltaic tile to operate stably for a long time even in complex environments.

[0010] In some embodiments, the second mounting structure may optionally include: a shielding portion connected to the mounting plate and disposed along the thickness direction of the mounting plate; and a latch connected to the shielding portion, wherein, when the photovoltaic tile overlaps with another photovoltaic tile, the latch is located between the first mounting structure of the other photovoltaic tile and the electrical connector.

[0011] In this way, the shielding part is set along the thickness direction of the mounting plate and connected to the mounting plate. When the photovoltaic tile overlaps with another photovoltaic tile, the shielding part can directly cover the opening area of ​​the other photovoltaic tile, thereby forming a physical shielding barrier. This not only prevents rainwater and wind sand from entering the groove through the opening and contacting the electrical connectors, but also enhances the contact area and tightness between adjacent tiles.

[0012] The latch, connected to the shielding portion, can be extruded from the second mounting structure. Specifically, the latch can be a strip-shaped protrusion formed by extrusion from the second mounting structure, with the protrusion facing the first mounting structure. When two photovoltaic tiles are overlapped, the latch is inserted between the first mounting structure of the other photovoltaic tile and the electrical connector. On one hand, the latch engages or limits the first mounting structure of the other photovoltaic tile, enhancing the mechanical locking between adjacent tiles, restricting their relative vertical movement, and improving the overall photovoltaic array's wind resistance.

[0013] Optionally, when two photovoltaic tiles are overlapped, gaps are left between the latch and the first mounting structure, and between the latch and the electrical connectors, to prevent friction or interference between the latch and the electrical connectors of adjacent tiles. The mounting plate is a metal plate, and both the first and second mounting structures are metal structures, thereby improving the structural strength of the photovoltaic panel. The gaps prevent insulation damage or short circuit risks caused by mechanical contact, thus achieving isolation and protection of the electrical connectors and significantly improving the safety of the photovoltaic tiles operating in complex environments.

[0014] In some embodiments, optionally, the first mounting structure extends along the sidewall of the groove in a direction away from the opening to form an overlap, which can support another photovoltaic tile.

[0015] Thus, the first mounting structure extends along the sidewall of the groove in the direction away from the opening to form an overlap. The overlap serves as a direct support carrier for adjacent photovoltaic tiles, and can bear part or all of the weight of the adjacent photovoltaic tiles during shingled installation. Through the planar support of the overlap, the local pressure of the upper tile on the lower tile is distributed, reducing the risk of deformation or loosening of the mounting structure due to long-term load.

[0016] In some embodiments, optionally, a portion of the overlapping part protrudes toward the plane of the mounting plate to form a positioning groove, the positioning groove being located on the side of the groove away from the photovoltaic tile, and the first mounting structure further includes a mounting hole disposed on the bottom wall of the positioning groove.

[0017] Thus, the overlapping portion protrudes towards the plane of the mounting plate to form a positioning groove, and this positioning groove is located on the side of the groove away from the photovoltaic tile. When the upper photovoltaic tile is installed in a stacked manner with the lower photovoltaic tile, the position of the positioning groove can play a preliminary positioning role in the tile installation, reducing the difficulty of stacked installation. The first installation structure also includes mounting holes located on the bottom wall of the positioning groove, through which bolts, rivets, or clips pass and are fixedly connected to the roof base (such as joists or purlins). It should be noted that the mounting holes are located on the bottom wall of the positioning groove, which will not damage the structure forming the groove, and the mounting holes are not used for cable routing, so they will not affect the sealing performance of the groove.

[0018] Meanwhile, the mounting holes are concealed within the bottom wall of the positioning groove, preventing them from being exposed on the surface of the photovoltaic tile. Especially when adjacent tiles are stacked, the upper tile can cover the opening of the positioning groove on the lower tile, meaning another photovoltaic tile can also block the opening of the positioning groove. Therefore, the positioning groove design maintains the clean appearance of the photovoltaic tile while preventing rainwater from eroding the mounting holes and metal connectors, thus avoiding roof leaks and corrosion of the metal connectors.

[0019] In some embodiments, the bottom wall of the positioning groove is flush with the mounting plate.

[0020] In this way, the bottom wall of the positioning groove is flush with the mounting plate. When bolts, rivets, or other connectors pass through the mounting holes located at the bottom of the groove, the bottom wall of the positioning groove abuts against the keel or purlin, and the mounting plate can also abut against the keel or purlin. This makes the photovoltaic tile array flatter and more aesthetically pleasing, while also reducing installation difficulty. At the same time, the flushness between the bottom of the groove and the mounting plate ensures even load distribution, avoids stress concentration, and improves the structural stability of the photovoltaic tile array.

[0021] In some embodiments, the first mounting structure, the second mounting structure, and the mounting plate may be an integral structure.

[0022] In this way, by designing the first installation structure, the second installation structure, and the installation plate as a single unit, the overall structural strength and installation reliability of the photovoltaic tiles are significantly improved. The integrated molding eliminates stress concentration and potential cracking risks at the traditional split-piece splicing or welding joints. At the same time, the integrated design reduces the number of parts and assembly steps, lowering production costs and installation difficulty, while improving construction efficiency and the overall aesthetics and durability of the photovoltaic tile array.

[0023] In some embodiments, the photovoltaic panel may optionally include: a panel layer disposed opposite to a base layer, with electrical connectors disposed on the panel layer; a photoelectric conversion layer disposed between the panel layer and the base layer and electrically connected to the electrical connectors; a first adhesive film layer connecting the panel layer and the photoelectric conversion layer; and a second adhesive film layer connecting the base layer and the photoelectric conversion layer.

[0024] Thus, the panel layer, photoelectric conversion layer, and base plate layer are laminated and encapsulated through a first and second encapsulating film layer, forming a stacked structure of panel layer—first encapsulating film layer—photoelectric conversion layer—second encapsulating film layer—base plate layer. The panel layer is made of high-transmittance, weather-resistant PET (Polyethylene Terephthalate) film or glass, improving the conversion efficiency of the photoelectric conversion layer. The base plate layer is made of PET board, metal plate, fiberglass board, or carbon fiber board, providing good mechanical support and moisture barrier properties. The first and second encapsulating film layers not only serve as connectors but also provide cushioning and vibration damping, while also protecting the internal photoelectric conversion layer from dust and moisture intrusion. Therefore, the stacked structure of the photovoltaic panel improves the power generation efficiency and lifespan of the photovoltaic tile.

[0025] Based on the same technical concept, an embodiment of the second aspect of this utility model provides a photovoltaic tile module, comprising at least two photovoltaic tiles as described in the first aspect. The at least two photovoltaic tiles are arranged in an array to form the photovoltaic tile module. Therefore, the photovoltaic tile module possesses all the beneficial effects of the photovoltaic tile described in the first aspect, which will not be elaborated further here.

[0026] Based on the same technical concept, an embodiment of the third aspect of this utility model provides a rooftop photovoltaic system, including photovoltaic tile modules as proposed in the second aspect. Therefore, the rooftop photovoltaic system possesses all the beneficial effects of the photovoltaic tile modules proposed in the second aspect, which will not be elaborated further here. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0028] Figure 1 A schematic diagram of the structure of a mounting plate according to an embodiment of this application is shown;

[0029] Figure 2 One of the structural schematic diagrams of a photovoltaic tile according to an embodiment of this application is shown;

[0030] Figure 3 It shows Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 A second schematic diagram of the structure of a photovoltaic tile according to an embodiment of this application is shown;

[0032] Figure 5 A schematic diagram of the structure of a photovoltaic tile module according to an embodiment of this application is shown;

[0033] Figure 6 It shows Figure 5 Enlarged diagram of point B in the middle.

[0034] Among them, 1 photovoltaic tile, 11 photovoltaic panel, 111 base plate layer, 112 panel layer, 113 photoelectric conversion layer, 114 first adhesive film layer, 115 second adhesive film layer, 12 mounting plate, 13 first mounting structure, 131 overlapping part, 132 positioning groove, 133 mounting hole, 14 groove, 141 opening, 15 electrical connector, 16 second mounting structure, 161 shielding part, 162 locking buckle, 2 photovoltaic tile assembly. Detailed Implementation

[0035] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the first aspect of this utility model provides a photovoltaic tile 1, including: a photovoltaic panel 11, including a base plate layer 111; a mounting plate 12, mounted on one side of the base plate layer 111; a first mounting structure 13, formed by bending one side of the mounting plate 12, the first mounting structure 13 and the photovoltaic panel 11 forming a groove 14 with an opening 141; and an electrical connector 15, electrically connected to the photovoltaic panel 11 and disposed in the groove 14.

[0038] The photovoltaic tile 1 provided by this utility model includes a photovoltaic panel 11, a mounting plate 12, a first mounting structure 13, and an electrical connector 15. The mounting plate 12 is installed at the bottom of the photovoltaic panel 11 to support the weight of the photovoltaic panel 11 and improve the overall strength of the photovoltaic tile 1. The first mounting structure 13 is formed by bending one end of the mounting plate 12 and surrounds the photovoltaic panel 11 to form a groove 14 with an opening 141. The electrical connector 15 is disposed in the groove 14 and can be electrically connected to the photovoltaic panel 11. The electrical connector 15 includes a junction box. Since the electrical connector 15 is built into the groove 14, there is no need to reserve exposed space for the junction box or cables on the back and outer surface of the photovoltaic tile 1. This avoids the problems of uneven surface and dust accumulation in gaps caused by the protrusion of the junction box or the cable perforation in traditional solutions, making the overall appearance of the photovoltaic tile 1 more concise and uniform. Meanwhile, the recessed groove 14 avoids drilling holes in the photovoltaic panel 11 or mounting plate 12 to fix the electrical connector 15, reducing the potential risks of stress concentration and moisture penetration caused by perforation, and extending the service life of the photovoltaic tile 1. Furthermore, when the electrical connector 15 needs to be inspected or replaced, it can be quickly operated through the opening 141 of the recessed groove 14 without disassembling the main body of the photovoltaic tile 1 or damaging the external structure. This solves the problem of difficult maintenance caused by the external or deeply hidden junction boxes of traditional photovoltaic tiles, improving maintenance efficiency while ensuring electrical safety. Therefore, this application bends the mounting plate 12 to form the recessed groove 14 around the photovoltaic panel 11, with the electrical connector 15 built into the recessed groove 14, simultaneously considering the needs of convenient installation, electrical safety, and aesthetic appearance.

[0039] Optionally, the mounting plate 12 is a metal plate.

[0040] In some embodiments, optionally, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the photovoltaic tile 1 further includes: a second mounting structure 16, formed by bending the mounting plate 12 on the opposite side of the first mounting structure 13; the second mounting structure 16 is bent along one side of the thickness direction of the mounting plate 12, and the first mounting structure 13 is bent along the other side of the thickness direction of the mounting plate 12; wherein, the opening 141 faces the second mounting structure 16, and when the photovoltaic tile 1 overlaps with another photovoltaic tile 1, the second mounting structure 16 covers at least part of the opening 141 of the other photovoltaic tile 1.

[0041] Thus, one edge of the mounting plate 12 is bent to form the sidewall of the groove 14, while the opposite edge is bent in the opposite direction. Specifically, the second mounting structure 16 is bent along one side of the thickness direction of the mounting plate 12, and the first mounting structure 13 is bent along the other side of the thickness direction of the mounting plate 12. That is, the bending directions of the two edges of the mounting plate 12 are opposite, thereby forming the first mounting structure 13 and the second mounting structure 16. The symmetrical bidirectional bending design allows the mounting structures of adjacent photovoltaic tiles to interlock or nest with each other when they overlap, forming a more stable mechanical connection.

[0042] Meanwhile, the first mounting structure 13 provides basic shielding for the internal electrical connectors 15, preventing direct sunlight or dust accumulation. The adjacent photovoltaic tile 1 can shield the opening 141 of the groove 14, thereby preventing rainwater and sand from directly contacting the electrical connectors 15. This improves the waterproof and dustproof performance of the photovoltaic tile module 2, and also effectively reduces the risk of failure of the electrical connectors 15 due to moisture, corrosion or short circuit caused by foreign objects. This enhances the long-term reliability of photovoltaic tile 1 power generation, enabling photovoltaic tile 1 to operate stably for a long time even in complex environments.

[0043] In some embodiments, optionally, such as Figure 2 , Figure 5 and Figure 6 As shown, the second mounting structure 16 includes: a shielding part 161, which is connected to the mounting plate 12 and is arranged along the thickness direction of the mounting plate 12; and a latch 162, which is connected to the shielding part 161. When the photovoltaic tile 1 overlaps with another photovoltaic tile 1, the latch 162 is located between the first mounting structure 13 of the other photovoltaic tile 1 and the electrical connector 15.

[0044] Thus, the shielding part 161 is arranged along the thickness direction of the mounting plate 12 and connected to the mounting plate 12. When the photovoltaic tile 1 overlaps with another photovoltaic tile 1, the shielding part 161 can directly cover the opening 141 area of ​​the other photovoltaic tile 1, thereby forming a physical shielding barrier. This not only prevents rainwater and wind sand from entering the groove 14 through the opening 141 and contacting the electrical connector 15, but also enhances the contact area and tightness between adjacent tiles.

[0045] The latch 162 is connected to the shielding portion 161 and can be extruded from the second mounting structure 16. Specifically, the latch 162 can be a strip-shaped protrusion formed by extrusion from the second mounting structure 16, with the protrusion facing the first mounting structure 13. When two photovoltaic tiles 1 are overlapped, the latch 162 is inserted between the first mounting structure 13 of the other photovoltaic tile 1 and the electrical connector 15. On the one hand, the latch 162 engages or limits the first mounting structure 13 of the other photovoltaic tile 1, enhancing the mechanical locking between adjacent tiles, restricting their relative vertical movement, and improving the overall photovoltaic tile array's wind resistance.

[0046] Optionally, when two photovoltaic tiles 1 are overlapped, gaps are left between the latch 162 and the first mounting structure 13, and between the latch 162 and the electrical connector 15, to prevent friction or interference between the latch 162 and the electrical connector 15 of the adjacent tile. The mounting plate 12 is a metal plate, and the first mounting structure 13 and the second mounting structure 16 are also metal structures, thereby improving the structural strength of the photovoltaic panel 11. The gaps left can prevent insulation damage or short circuit risks caused by mechanical contact, thus achieving isolation and protection for the electrical connector 15 and significantly improving the safety of the photovoltaic tile 1 operating in complex environments.

[0047] In some embodiments, optionally, such as Figure 3 and Figure 6 As shown, the first mounting structure 13 extends along the side wall of the groove 14 in a direction away from the opening 141 to form an overlap 131, which can support another photovoltaic tile 1.

[0048] Thus, the first mounting structure 13 extends along the sidewall of the groove 14 in a direction away from the opening 141 to form an overlapping portion 131. The overlapping portion 131 serves as a direct support carrier for adjacent photovoltaic tiles 1, and can bear part or all of the weight of adjacent photovoltaic tiles 1 during shingled installation. Through the planar support effect of the overlapping portion 131, the local pressure of the upper tile on the lower tile is dispersed, reducing the risk of deformation or loosening of the mounting structure due to long-term load.

[0049] In some embodiments, optionally, such as Figure 3 and Figure 6 As shown, the overlapping part 131 protrudes in the direction of the plane where the mounting plate 12 is located to form a positioning groove 132. The positioning groove 132 is located on the side of the groove 14 away from the photovoltaic tile 1. The first mounting structure 13 also includes a mounting hole 133, which is provided on the bottom wall of the positioning groove 132.

[0050] Thus, the overlapping portion 131 protrudes towards the plane of the mounting plate 12 to form a positioning groove 132, and this positioning groove 132 is located on the side of the groove 14 away from the photovoltaic tile 1. When the upper photovoltaic tile and the lower photovoltaic tile are installed in a stacked manner, the position of the positioning groove 132 can play a preliminary positioning role for the tile installation, reducing the difficulty of stacked installation. The first mounting structure 13 also includes a mounting hole 133 provided in the bottom wall of the positioning groove 132, through which bolts, rivets or clips pass and are fixedly connected to the roof base (such as keel or purlin). It should be noted that the mounting hole 133 is provided in the bottom wall of the positioning groove 132, which will not damage the structure forming the groove 14, and the mounting hole 133 is not used to pass cables through, and will not affect the sealing performance of the groove 14.

[0051] Meanwhile, the mounting hole 133 is hidden in the bottom wall of the positioning groove 132, avoiding exposure on the surface of the photovoltaic tile 1. Especially when adjacent tiles are installed on top of each other, the upper tile can cover the opening 141 of the positioning groove 132 of the lower tile, that is, another photovoltaic tile 1 can block the opening 141 of the positioning groove 132. Therefore, the design of the positioning groove 132 maintains the clean appearance of the photovoltaic tile 1 and prevents rainwater from eroding the mounting hole 133 and the metal connectors, avoiding problems such as roof leakage and corrosion of metal connectors.

[0052] In some embodiments, optionally, such as Figure 3 and Figure 6 As shown, the bottom wall of the positioning groove 132 is flush with the mounting plate 12.

[0053] Thus, the bottom wall of the positioning groove 132 is flush with the mounting plate 12. When bolts, rivets, or other connecting parts pass through the mounting holes 133 located at the bottom of the groove, the bottom wall of the positioning groove 132 abuts against the keel or purlin, and the mounting plate 12 can also abut against the keel or purlin, making the photovoltaic tile array flatter and more aesthetically pleasing, while also reducing installation difficulty. At the same time, the flushness between the bottom of the groove and the mounting plate 12 ensures uniform load distribution, avoids stress concentration, and improves the structural stability of the photovoltaic tile array.

[0054] In some embodiments, the first mounting structure 13, the second mounting structure 16, and the mounting plate 12 may be an integral structure.

[0055] Thus, by designing the first mounting structure 13, the second mounting structure 16, and the mounting plate 12 as an integrated structure, the overall structural strength and installation reliability of the photovoltaic tile 1 are significantly improved. The integrated molding eliminates stress concentration and potential cracking risks at traditional split-piece splicing or welding joints. At the same time, the integrated design reduces the number of parts and assembly steps, lowering production costs and installation difficulty, while improving construction efficiency and the overall aesthetics and durability of the photovoltaic tile array.

[0056] In some embodiments, optionally, such as Figure 4 As shown, the photovoltaic panel 11 includes: a panel layer 112, which is disposed opposite to the base plate layer 111, and an electrical connector 15 is disposed on the panel layer 112; a photoelectric conversion layer 113, which is disposed between the panel layer 112 and the base plate layer 111 and is electrically connected to the electrical connector 15; a first encapsulant layer 114, which connects the panel layer 112 and the photoelectric conversion layer 113; and a second encapsulant layer 115, which connects the base plate layer 111 and the photoelectric conversion layer 113.

[0057] Thus, the panel layer 112, photoelectric conversion layer 113, and base plate layer 111 are laminated and encapsulated through a first adhesive film layer 114 and a second adhesive film layer 115, forming a stacked structure of panel layer 112—first adhesive film layer 114—photoelectric conversion layer 113—second adhesive film layer 115—base plate layer 111. The panel layer 112 is made of high-transmittance, weather-resistant PET film or glass, improving the conversion efficiency of the photoelectric conversion layer 113. The base plate layer 111 is made of PET board, metal plate, fiberglass board, or carbon fiber board, providing good mechanical support and moisture barrier properties. The first adhesive film layer 114 and the second adhesive film layer 115 not only serve as a connector but also provide some cushioning and vibration reduction, while also protecting the internal photoelectric conversion layer 113 from dust and moisture intrusion. Therefore, the stacked structure of the photovoltaic panel 11 improves the power generation efficiency and lifespan of the photovoltaic tile 1.

[0058] Based on the same technological concept, such as Figure 5 As shown, an embodiment of the second aspect of this utility model provides a photovoltaic tile module 2, comprising at least two photovoltaic tiles 1 as described in the first aspect. The at least two photovoltaic tiles 1 are arranged in an array to form the photovoltaic tile module 2. Therefore, the photovoltaic tile module 2 possesses all the beneficial effects of the photovoltaic tile 1 described in the first aspect, which will not be elaborated further here.

[0059] Based on the same technical concept, an embodiment of the third aspect of this utility model provides a rooftop photovoltaic system, including the photovoltaic tile module 2 as proposed in the second aspect. Therefore, the rooftop photovoltaic system possesses all the beneficial effects of the photovoltaic tile module 2 proposed in the second aspect, which will not be elaborated further here.

[0060] In a specific application, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this application provides a lightweight photovoltaic tile, which includes, from top to bottom:

[0061] Upper protective layer (panel layer 112): made of high light transmittance and weather-resistant PET film or glass;

[0062] Photoelectric conversion layer 113: composed of crystalline silicon, compounds or organic materials;

[0063] Lower protective / buffer layer (bottom layer 111): composed of materials such as PET board, metal plate, fiberglass board, carbon fiber board, etc., which have mechanical support and moisture barrier;

[0064] Integral rigid metal support plate (mounting plate 12): This structure forms a groove by folding one end of the mounting plate 12 to accommodate the electrical connector 15, and the other end is bent in the opposite direction to form a cover structure (second mounting structure 16). After installation, the electrical connector 15 can be covered by the second mounting structure 16, achieving concealed installation of the electrical connector 15 and improving structural integration and electrical connection reliability. At the same time, the latch 162 of the second mounting structure 16 can interlock with the groove 14, improving wind resistance.

[0065] The panel layer 112, the photoelectric conversion layer 113, and the base plate layer 111 are bonded together by encapsulating films (first film layer 114 and second film layer 115). The base plate layer 111 and the mounting plate 12 are fixedly connected by adhesive film, silicone, or mechanical means.

[0066] 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 that embodiment or example is included in at least one embodiment or example of this application. 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 any one embodiment or example.

[0067] 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 that embodiment or example is included in at least one embodiment or example of this application. 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.

[0068] Although embodiments of this application 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 this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A photovoltaic tile, characterized in that, include: Photovoltaic panels, including the base layer; Mounting plate, installed on one side of the base plate layer; The first mounting structure is formed by bending one side of the mounting plate, and the first mounting structure and the photovoltaic panel form a groove with an opening; An electrical connector, electrically connected to the photovoltaic panel, is disposed within the groove.

2. The photovoltaic tile according to claim 1, characterized in that, Also includes: The second mounting structure is formed by bending the mounting plate on the other side opposite to the first mounting structure. The second mounting structure is bent on one side along the thickness direction of the mounting plate, and the first mounting structure is bent on the other side along the thickness direction of the mounting plate. Wherein, the opening faces the second mounting structure, and when the photovoltaic tile overlaps with another photovoltaic tile, the second mounting structure covers at least part of the opening of the other photovoltaic tile.

3. The photovoltaic tile according to claim 2, characterized in that, The second mounting structure includes: A shielding portion is connected to the mounting plate and is disposed along the thickness direction of the mounting plate; The latch connects the shielding part, and when the photovoltaic tile overlaps with the other photovoltaic tile, the latch is located between the first mounting structure of the other photovoltaic tile and the electrical connector.

4. The photovoltaic tile according to claim 2, characterized in that, The first mounting structure extends along the sidewall of the groove in a direction away from the opening to form an overlap, which can support the other photovoltaic tile.

5. The photovoltaic tile according to claim 4, characterized in that, A portion of the overlapping part protrudes towards the plane of the mounting plate to form a positioning groove, the positioning groove being located on the side of the groove away from the photovoltaic tile. The first mounting structure further includes: The mounting hole is located on the bottom wall of the positioning groove.

6. The photovoltaic tile according to claim 5, characterized in that, The bottom wall of the positioning groove is flush with the mounting plate.

7. The photovoltaic tile according to any one of claims 2 to 6, characterized in that, The first mounting structure, the second mounting structure, and the mounting plate are an integral structure.

8. The photovoltaic tile according to any one of claims 1 to 6, characterized in that, The photovoltaic panel includes: A panel layer is disposed opposite to the base plate layer, and the electrical connectors are disposed on the panel layer; A photoelectric conversion layer is disposed between the panel layer and the base plate layer, and is electrically connected to the electrical connector; The first adhesive film layer connects the panel layer and the photoelectric conversion layer; The second adhesive film layer connects the base plate layer and the photoelectric conversion layer.

9. A photovoltaic tile module, characterized in that, include: At least two photovoltaic tiles as described in any one of claims 1 to 8.

10. A rooftop photovoltaic system, characterized in that, include: The photovoltaic tile module as described in claim 9.

Images