Photovoltaic structure

Abstract

The application relates to a photovoltaic structure, comprising a frame mechanism and a plurality of photovoltaic tiles, at least two photovoltaic tiles being arranged adjacently, the photovoltaic tile comprising a top surface, a bottom surface and a side surface, the top surface and the bottom surface being arranged at intervals along the thickness direction of the photovoltaic tile, and the side surface connecting the top surface and the bottom surface; the frame mechanism is located on the side of the plane where the top surface is located and faces the bottom surface, the frame mechanism comprises a lateral support member located at least partially between the two adjacent photovoltaic tiles, the lateral support member comprises a connecting section and a first extension section connected to each other, the connecting section extends along the thickness direction of the photovoltaic tile, the first extension section is located on the side of the connecting section facing the top surface, the first extension section gradually approaches the side surface of one of the photovoltaic tiles in the direction close to the top surface, and a first glue overflow groove is formed between the connecting section, the first extension section and the side surface of one of the photovoltaic tiles.

Description

Technical Field

[0001] This application relates to the field of photovoltaic tile technology, and in particular to a photovoltaic structure. Background Technology

[0002] Building Integrated Photovoltaics (BIPV) integrates photovoltaic modules as building components or materials, making them part of the building while also generating electricity. BIPV avoids occupying excessive land resources, which is especially important for urban buildings where land is expensive. BIPV converts solar energy into electricity, which can reduce overall outdoor temperature and also play a role in peak shaving for the power grid, thus contributing to building energy conservation.

[0003] Some photovoltaic modules use frames to support and fix photovoltaic tiles, but the frames can extend above the top surface of the photovoltaic tiles, creating a risk of dust accumulation and hot spots. Utility Model Content

[0004] Therefore, it is necessary to provide a photovoltaic structure that reduces the risk of hot spots to address the aforementioned technical problems.

[0005] An embodiment of this application provides a photovoltaic structure, including a frame mechanism and a plurality of photovoltaic tiles, at least two photovoltaic tiles being arranged adjacently. Each photovoltaic tile includes a top surface, a bottom surface, and a side surface. The top surface and the bottom surface are spaced apart along the thickness direction of the photovoltaic tile, and the side surface connects the top surface and the bottom surface. The frame mechanism is located on the side of the plane containing the top surface facing the bottom surface. The frame mechanism includes a lateral support member located at least partially between two adjacent photovoltaic tiles. The lateral support member includes a connecting section and a first extension section that are connected to each other. The connecting section extends along the thickness direction of the photovoltaic tile, and the first extension section is located on the side of the connecting section facing the top surface. The first extension section gradually approaches the side of one of the photovoltaic tiles along the direction close to the top surface, and a first overflow groove is formed between the connecting section, the first extension section, and the side of one of the photovoltaic tiles.

[0006] In one embodiment, the lateral support further includes a second extension connected to the connecting section. The second extension is located on the side of the first extension facing the bottom surface. The second extension is located within the first overflow groove and divides the first overflow groove into two sub-grooves, which are arranged along the thickness direction of the photovoltaic tile.

[0007] In one embodiment, the length of the second extension is less than the length of the first extension.

[0008] In one embodiment, two lateral supports are provided in the same gap formed between adjacent photovoltaic tiles, and the two lateral supports form two first overflow grooves between the two photovoltaic tiles and the sides of the two photovoltaic tiles, respectively.

[0009] In one embodiment, a water channel is formed between two lateral supports, extending along the thickness direction of the photovoltaic tile.

[0010] In one embodiment, the frame mechanism further includes a base located on the side of the plane where the bottom surface is located away from the top surface, and two lateral supports are connected to the base. The base is provided with a drainage channel communicating with the water guide channel.

[0011] In one embodiment, the frame mechanism further includes a base located on the side of the plane where the bottom surface is located away from the top surface, a lateral support member is connected to the base, and an adhesive application groove is provided on the side of the base facing the bottom surface, the adhesive application groove being filled with structural adhesive.

[0012] In one embodiment, a second overflow groove is provided on the side of the base facing the bottom surface, and the second overflow groove is located on the side of the glue application groove facing the lateral support.

[0013] In one embodiment, the depth of the second overflow groove gradually increases along the direction away from the glue coating groove.

[0014] In one embodiment, the wall of the second overflow tank is provided with a plurality of serrations, which are inclined toward one side of the adhesive tank.

[0015] The photovoltaic structure provided in this application, by positioning the frame mechanism on the side of the photovoltaic tile's top surface facing the bottom, prevents the frame mechanism from extending onto the top surface of the photovoltaic tile and causing dust accumulation, thereby reducing the risk of hot spots on the top surface of the photovoltaic tile. Furthermore, the frame mechanism can be hidden below or flush with the top surface of the photovoltaic tile, resulting in a smoother and more aesthetically pleasing appearance. This allows for better integration with surrounding buildings and does not affect the overall aesthetics of the architecture. By including lateral support members between two adjacent photovoltaic tiles in the frame mechanism, the lateral support force of the frame mechanism on the photovoltaic tiles is increased, reducing the risk of lateral displacement of the photovoltaic tiles and enhancing the photovoltaic structure's resistance to external factors such as hail, snow pressure, and wind. By including a connecting section and a first extension section in the lateral support member, and forming a first adhesive overflow groove between the connecting section, the first extension section, and the side of one of the photovoltaic tiles, the probability of structural adhesive overflowing onto the top surface of the photovoltaic tile is reduced, thereby reducing rework risks and improving the yield rate of the photovoltaic structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a cross-sectional structural diagram of a photovoltaic structure according to some embodiments of this application.

[0018] Figure 2 An example is shown. Figure 1 A magnified view of the photovoltaic structure at position A.

[0019] Figure label:

[0020] 10. Photovoltaic structure;

[0021] 100. Photovoltaic tile; 110. Top surface; 120. Bottom surface; 130. Side surface;

[0022] 200. Frame mechanism; 201. First overflow groove; 210. Lateral support; 211. Connecting section; 212. First extension section; 213. Second extension section; 214. Water guide groove; 220. Base; 221. Glue application groove; 222. Second overflow groove; 223. Serration; 224. Drainage groove; 225. Weight reduction cavity;

[0023] 300. Structural adhesive;

[0024] z. The thickness direction of the photovoltaic tile. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and 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 application.

[0027] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0031] The photovoltaic structure provided in the embodiments of this application will be described below with reference to the accompanying drawings. It should be noted that the z-direction in the drawings represents the thickness direction of the photovoltaic tile. In the drawings, for ease of drawing, the dimensions are not necessarily proportional to the actual dimensions.

[0032] Please refer to Figure 1 and Figure 2 , Figure 1This is a cross-sectional structural diagram of a photovoltaic structure according to some embodiments of this application. Figure 2 An example is shown. Figure 1 A magnified view of the photovoltaic structure at position A.

[0033] like Figure 1 and Figure 2 As shown, an embodiment of this application provides a photovoltaic structure 10, including a frame mechanism 200 and a plurality of photovoltaic tiles 100. At least two photovoltaic tiles 100 are arranged adjacent to each other. Each photovoltaic tile 100 includes a top surface 110, a bottom surface 120 and a side surface 130. The top surface 110 and the bottom surface 120 are spaced apart along the thickness direction of the photovoltaic tile 100 (the z direction in the figure). The side surface 130 connects the top surface 110 and the bottom surface 120. The frame mechanism 200 is located on the side of the plane where the top surface 110 is located, facing the bottom surface 120. The frame mechanism 200 includes a lateral support member 210 located at least partially between two adjacent photovoltaic tiles 100. The lateral support member 210 includes a connecting section 211 and a first extension section 212 connected to each other (the dashed line in the figure represents the boundary line between the connecting section 211 and the first extension section 212). The connecting section 211 extends along the thickness direction z of the photovoltaic tile 100. The first extension section 212 is located on the side of the connecting section 211 facing the top surface 110. The first extension section 212 gradually approaches the side 130 of one of the photovoltaic tiles 100 in the direction close to the top surface 110. A first overflow groove 201 is formed between the connecting section 211, the first extension section 212 and the side 130 of one of the photovoltaic tiles 100.

[0034] It's easy to understand that the top surface 110 of the photovoltaic tile 100 refers to the side facing the sun, and the bottom surface 120 refers to the side facing the ground. When sunlight shines on the top surface of the photovoltaic tile 100, the photon energy is absorbed by the semiconductor material (such as silicon) inside the photovoltaic tile 100, causing electrons to break free and become free electrons, forming electron-hole pairs. These free electrons move directionally under the influence of the PN junction electric field inside the photovoltaic tile 100, forming an electric current. Multiple photovoltaic tiles 100 are connected in series and parallel to form a module, outputting current and realizing the power generation function. When the frame mechanism 200 extends to the top surface 110 of the photovoltaic tile 100, it will cause local dust accumulation on the top surface 110 of the photovoltaic tile 100. The area of ​​the photovoltaic tile 100 blocked by dust absorbs fewer photons, and the number of electron-hole pairs generated is reduced. Therefore, its short-circuit current (i.e., the maximum output current) will be much lower than that of the unshaded area of ​​the photovoltaic tile 100. When the shaded area of ​​the photovoltaic tile 100 experiences insufficient current, it is forced to transform from a "power-generating element" to an "energy-consuming element" in the series circuit, ultimately leading to localized overheating and the formation of hot spots. These hot spots not only reduce the overall power generation efficiency of the photovoltaic tile 100 but also accelerate the aging of the cell materials, causing PN junction failure, yellowing and cracking of the encapsulation material, and shortening the lifespan of the photovoltaic tile 100. In extreme cases, sustained high temperatures may trigger localized combustion of the module, posing a fire risk.

[0035] It should be noted that during installation, the photovoltaic structure 10 consists of multiple photovoltaic tiles 100 arranged in rows and columns on a flat surface, with each photovoltaic tile 100 supported and connected by the frame mechanism 200, forming a unified whole. The frame mechanism 200 and the photovoltaic tiles 100 are connected by structural adhesive 300, which can be at least one of silicone structural adhesive, polyurethane structural adhesive, and modified silane adhesive. Silicone structural adhesive is the preferred material for connecting photovoltaic tiles 100 and frame mechanism 200 in BIPV (Building Integrated Photovoltaics), especially suitable for outdoor exposed environments. It has advantages such as high bonding strength, excellent weather resistance, good elasticity, electrical insulation, and good workability, making it suitable for most outdoor BIPV projects (such as roofs and curtain walls), especially in areas with complex climates and large temperature differences. Polyurethane structural adhesives are an important supplement to silicone adhesives, offering advantages in specific scenarios. They exhibit good adhesion to commonly used photovoltaic (PV) tiles such as glass, ceramics, metals (aluminum alloys, stainless steel), and composite materials, especially showing superior bonding to some difficult-to-bond materials (such as certain coated metal frames). Furthermore, polyurethane structural adhesives possess excellent low-temperature resistance, high tensile and shear strength, and moderate elastic modulus, making them suitable for cold regions, indoor BIPV (such as skylights), or projects requiring diverse bonding capabilities. Modified silane adhesives (also known as silane-modified polyether adhesives) are environmentally friendly adhesives that have emerged in recent years, combining the advantages of silicone and polyurethane adhesives: environmentally friendly and low-odor, balanced weather resistance, flexible bonding, and non-corrosive to metals. They are suitable for green buildings, BIPV projects with low indoor and outdoor pollution requirements, or scenarios requiring a balance between environmental protection and weather resistance.

[0036] The photovoltaic structure 10 of this application embodiment, by positioning the frame mechanism 200 on the side of the photovoltaic tile 100's top surface 110 facing the bottom surface 120, prevents the frame mechanism 200 from extending onto the top surface 110 of the photovoltaic tile 100, thus reducing the risk of hot spots on the top surface 110 of the photovoltaic tile 100. Furthermore, the frame mechanism 200 can be hidden below or flush with the top surface 110 of the photovoltaic tile 100, resulting in a smoother and more aesthetically pleasing appearance for the photovoltaic structure 10. This allows for better integration with surrounding buildings without affecting the overall aesthetics of the architecture. By including a lateral support member 210 between two adjacent photovoltaic tiles 100 in the frame mechanism 200, the lateral support force of the frame mechanism 200 on the photovoltaic tile 100 is increased, reducing the risk of lateral displacement of the photovoltaic tile 100 and enhancing the photovoltaic structure 10's resistance to external factors such as hail, snow pressure, and wind. By making the lateral support 210 include a connecting section 211 and a first extension section 212, and forming a first overflow groove 201 between the connecting section 211, the first extension section 212 and the side surface 130 of one of the photovoltaic tiles 100, the probability of structural adhesive 300 overflowing onto the top surface 110 of the photovoltaic tile 100 is reduced, thereby reducing the risk of rework and improving the yield of the photovoltaic structure 10.

[0037] In some embodiments, the frame mechanism 200 further includes a base 220 located on the side of the plane where the bottom surface 120 is located away from the top surface 110, a lateral support 210 is connected to the base 220, and the side of the base 220 facing the bottom surface 120 is provided with an adhesive groove 221, which is filled with structural adhesive 300.

[0038] Optionally, two adjacent photovoltaic tiles 100 are connected by the same frame mechanism 200. The base 220 is provided with an adhesive application groove 221 on the side facing the bottom surface 120 of the two photovoltaic tiles 100, and is connected to the two photovoltaic tiles 100 by structural adhesive 300 provided in the two adhesive application grooves 221, so that the two photovoltaic tiles 100 are connected as one unit by structural adhesive 300 and frame mechanism 200.

[0039] In this embodiment of the photovoltaic structure 10, by providing an adhesive application groove 221 for accommodating structural adhesive 300 on the side of the base 220 facing the bottom surface 120, the photovoltaic tile 100 can be directly pressed onto the base 220 and bonded to the base 220 as a whole. The adhesive application groove 221 can reduce adhesive overflow and make the process more convenient.

[0040] In some embodiments, the base 220 is provided with a second overflow groove 222 on the side facing the bottom surface 120, and the second overflow groove 222 is located on the side of the glue application groove 221 facing the lateral support member 210.

[0041] It is easy to understand that, in order to ensure the connection strength between the base 220 and the photovoltaic tile 100, sufficient structural adhesive 300 is filled into the adhesive application tank 221. However, the thickness of the structural adhesive 300 varies at different locations in the adhesive application tank 221. Areas with thicker structural adhesive 300 will overflow outwards after being squeezed by the photovoltaic tile 100. If the structural adhesive 300 overflows to the side away from the gap between the photovoltaic tiles 100, it will not affect the top surface 110 of the photovoltaic tile. However, if the structural adhesive 300 overflows to the side of the gap between the photovoltaic tiles 100, it may overflow from the gap between the photovoltaic tiles 100 to the top surface 110 of the photovoltaic tile 100, causing rework. Therefore, in this embodiment, a first overflow tank 201 and a second overflow tank 222 are provided to reduce the risk of adhesive overflow.

[0042] Optionally, along the direction away from the glue coating tank 221, the depth of the second glue overflow tank 222 gradually increases, guiding the structural adhesive 300 overflowing from the glue coating tank 221 to the direction away from the top surface 110 of the photovoltaic tile 100, thereby reducing the tendency of the overflow adhesive to overflow towards the first glue overflow tank 201 and the top surface 110 of the photovoltaic tile 100.

[0043] Optionally, the wall surface of the second overflow tank 222 is provided with a plurality of serrations 223, which are inclined toward one side of the glue coating tank 221. The overflow glue is retained in the second overflow tank 222 as much as possible by the plurality of serrations 223 inclined toward one side of the glue coating tank 221.

[0044] The photovoltaic structure 10 of this application embodiment reduces the probability of adhesive overflow from the side 130 of the photovoltaic tile 100 to the top surface 110 by providing a second adhesive overflow groove 222 on the side of the base 220 facing the bottom surface 120, thereby reducing rework. By making the depth of the second adhesive overflow groove 222 gradually increase along the direction away from the adhesive coating groove 221, the structural adhesive 300 overflowing from the adhesive coating groove 221 to the second adhesive overflow groove 222 is guided in the direction away from the top surface 110 of the photovoltaic tile 100, further reducing the tendency of adhesive overflow towards the first adhesive overflow groove 201 and the top surface 110 of the photovoltaic tile 100. By providing a plurality of serrations 223 on the wall surface of the second adhesive overflow groove 222, with the serrations 223 inclined towards the side of the adhesive coating groove 221, the adhesive overflow is retained in the second adhesive overflow groove 222 as much as possible, further reducing the probability of adhesive overflow from the side 130 of the photovoltaic tile 100 to the top surface 110.

[0045] In some embodiments, the lateral support 210 further includes a second extension 213 connected to the connecting segment 211 (the dashed line in the figure represents the boundary between the connecting segment 211 and the second extension 213). The second extension 213 is located on the side of the first extension 212 facing the bottom surface 120. The second extension 213 is located within the first overflow groove 201 and divides the first overflow groove 201 into two sub-grooves. The two sub-grooves are arranged along the thickness direction z of the photovoltaic tile 100.

[0046] Optionally, the length of the second extension segment 213 is shorter than the length of the first extension segment 212. This allows the structural adhesive 300 overflowing into the first overflow tank 201, when its volume is small, to be confined by the second extension segment 213 within the lower sub-tank, away from the top surface 110 of the photovoltaic tile 100. Conversely, when the structural adhesive 300 overflowing into the first overflow tank 201 is large and fills the lower sub-tank, it can continue to overflow into the upper sub-tank and be confined thereby by the first extension segment 212. This two-stage interception using extension segments further reduces the risk of adhesive overflowing onto the top surface 110.

[0047] Furthermore, by providing a first extension section 212 and a second extension section 213 that are inclined to one side 130, the risk of rainwater flowing into the first overflow trough 201 can be reduced.

[0048] Optionally, a sealant (not shown) is provided between the first extension 212 and the side 130. The sealant is used to prevent rainwater from entering the first overflow groove 201, reduce the erosion of the structural adhesive 300 by rainwater, and thus improve the life of the structural adhesive 300.

[0049] The photovoltaic structure 10 of this embodiment, by making the length of the second extension 213 shorter than the length of the first extension 212, ensures that when the volume of structural adhesive 300 overflowing into the first overflow groove 201 is small, it can be confined by the second extension 213 to the lower sub-groove, away from the top surface 110 of the photovoltaic tile 100. Even when the volume of structural adhesive 300 overflowing into the first overflow groove 201 is large and fills the lower sub-groove, it can continue to overflow into the upper sub-groove and be confined thereby by the first extension 212. This two-stage interception by the two extensions further reduces the risk of adhesive overflowing onto the top surface 110. Furthermore, by providing sealant between the first extension 212 and the side 130, the sealant prevents rainwater from entering the first overflow groove 201, reducing the erosion of the structural adhesive 300 by rainwater and thus improving the lifespan of the structural adhesive 300.

[0050] In some embodiments, two lateral supports 210 are provided in the same gap between adjacent photovoltaic tiles 100, and the two lateral supports 210 form two first overflow grooves 201 between the two photovoltaic tiles 100 and the side surfaces 130 of the two photovoltaic tiles 100 respectively.

[0051] Optionally, a water guide channel 214 is formed between the two lateral supports 210, and the water guide channel 214 extends along the thickness direction z of the photovoltaic tile 100. Since the first extension section 212 is inclined towards the side 130 of the photovoltaic tile 100, rainwater will be guided by the first extension section 212 and flow into the water guide channel 214, thereby reducing the probability of rainwater entering the first overflow groove 201.

[0052] Optionally, both lateral support members 210 are connected to the base 220, and the base 220 is provided with a drainage channel 224 communicating with the water guide channel 214. Rainwater from the top surface 110 of the photovoltaic tile 100 gathers in the gap between adjacent photovoltaic tiles 100, and is then guided by the first extension section 212 to the water guide channel 214, and then flows into the drainage channel 224 and is finally discharged.

[0053] In this embodiment of the photovoltaic structure 10, two lateral support members 210 are provided in the gaps between the photovoltaic tiles 100 to support the sides 130 of the two photovoltaic tiles 100 respectively, further reducing the lateral displacement of the photovoltaic tiles 100. Furthermore, by forming a water guide channel 214 between the two lateral support members 210, the water guide channel 214 extends along the thickness direction z of the photovoltaic tile 100. Since the first extension section 212 is inclined towards the side 130 of the photovoltaic tile 100, rainwater will be guided by the first extension section 212 and flow into the water guide channel 214, thereby reducing the probability of rainwater entering the first overflow groove 201. By providing a drainage groove 224 communicating with the water guide channel 214 in the base 220, rainwater from the top surface 110 of the photovoltaic tile 100 gathers in the gap between adjacent photovoltaic tiles 100, is guided by the first extension section 212 to the water guide channel 214, and then flows into the drainage groove 224 and is finally drained away.

[0054] In some embodiments, the frame mechanism 200 is made of at least one of steel, aluminum alloy, glass fiber reinforced polyurethane composite material, and basalt fiber reinforced composite material.

[0055] Optionally, the base 220 is also provided with a weight-reducing cavity 225 for weight reduction.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0057] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A photovoltaic structure, characterized in that, include: Multiple photovoltaic tiles, at least two of which are arranged adjacent to each other, each photovoltaic tile includes a top surface, a bottom surface, and a side surface, the top surface and the bottom surface are spaced apart along the thickness direction of the photovoltaic tile, and the side surface connects the top surface and the bottom surface; A frame mechanism is located on the side of the plane containing the top surface facing the bottom surface. The frame mechanism includes a lateral support member located at least partially between two adjacent photovoltaic tiles. The lateral support member includes a connecting section and a first extension section connected to each other. The connecting section extends along the thickness direction of the photovoltaic tile. The first extension section is located on the side of the connecting section facing the top surface. The first extension section gradually approaches the side of one of the photovoltaic tiles in a direction close to the top surface. A first overflow groove is formed between the connecting section, the first extension section, and the side of one of the photovoltaic tiles.

2. The photovoltaic structure according to claim 1, characterized in that, The lateral support also includes a second extension connected to the connecting section. The second extension is located on the side of the first extension facing the bottom surface. The second extension is located in the first overflow groove and divides the first overflow groove into two sub-grooves. The two sub-grooves are arranged along the thickness direction of the photovoltaic tile.

3. The photovoltaic structure according to claim 2, characterized in that, The length of the second extension is less than the length of the first extension.

4. The photovoltaic structure according to claim 2, characterized in that, Two lateral support members are provided in the same gap formed between adjacent photovoltaic tiles, and the two lateral support members respectively form two first overflow grooves between the two photovoltaic tiles and the sides of the two photovoltaic tiles.

5. The photovoltaic structure according to claim 4, characterized in that, A water channel is formed between the two lateral supports, and the water channel extends along the thickness direction of the photovoltaic tile.

6. The photovoltaic structure according to claim 5, characterized in that, The frame mechanism also includes a base located on the side of the plane where the bottom surface is located, away from the top surface. Both of the lateral support members are connected to the base, and the base is provided with a drainage channel that communicates with the water guide channel.

7. The photovoltaic structure according to claim 1, characterized in that, The frame mechanism also includes a base located on the side of the plane where the bottom surface is located away from the top surface. The lateral support is connected to the base. The side of the base facing the bottom surface is provided with an adhesive groove, which is filled with structural adhesive.

8. The photovoltaic structure according to claim 7, characterized in that, The base is also provided with a second overflow groove on the side facing the bottom surface, and the second overflow groove is located on the side of the glue application groove facing the lateral support.

9. The photovoltaic structure according to claim 8, characterized in that, Along the direction away from the glue coating tank, the depth of the second glue overflow tank gradually increases.

10. The photovoltaic structure according to claim 8, characterized in that, The wall of the second glue overflow tank is provided with multiple serrations, which are inclined toward one side of the glue coating tank.

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