Photovoltaic tile and photovoltaic module

Abstract

The utility model discloses a photovoltaic tile and a photovoltaic assembly. The photovoltaic tile comprises a laminated assembly and a back plate, the laminated assembly comprises a front plate and a battery piece, and the battery piece is covered with the front plate; the back plate comprises a main body plate and an edge locking structure, the main body plate covers the surface of one side, deviating from the front plate, of the battery piece, and the edge locking structure is arranged on the edge of the main body plate and located outside the edge of the laminated assembly; the lockrand structure comprises a vertical plate connected with the main body plate and a reflecting layer, a first included angle alpha is formed between the vertical plate and the main body plate, the lockrand structure is configured to be in lap joint with the lockrand structure of another photovoltaic tile, and the reflecting layer covers the surface of one side, facing the laminated assembly, of the vertical plate. According to the photovoltaic tile, the main body plate covers the surface of the battery piece, the edge of the main body plate is connected with the vertical plate, and the reflecting layer is arranged on the surface of the side, facing the laminated assembly, of the vertical plate, so that sunlight emitted to the vertical plate is reflected to the laminated assembly through the reflecting layer, the sunlight absorbed by the battery piece is increased, and the power generation efficiency of the photovoltaic tile is improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and more specifically, to a photovoltaic tile and a photovoltaic module. Background Technology

[0002] Photovoltaic tiles are devices that convert solar energy into electrical energy. The solar cells within the tiles absorb sunlight and convert that light energy into electrical energy. Photovoltaic tiles are installed on rooftops or other building surfaces by overlapping the edges of metal back panels. The overlapping edges of the metal back panels form a locking structure on the same side, but this locking structure blocks sunlight from reaching the photovoltaic module surface. Therefore, increasing the amount of sunlight reaching the photovoltaic module is a key technical problem to be solved. Utility Model Content

[0003] This utility model provides a photovoltaic tile and a photovoltaic module.

[0004] The photovoltaic tile of this application includes a laminated assembly and a backsheet. The laminated assembly includes a front panel and solar cells, with the front panel covering the solar cells. The backsheet includes a main panel and a locking structure. The main panel covers the side surface of the solar cells facing away from the front panel. The locking structure is disposed at the edge of the main panel and located outside the edge of the laminated assembly. The locking structure includes a vertical plate connected to the main panel and a reflective layer. The vertical plate forms a first angle α with the main panel. The locking structure is configured to overlap with the locking structure of another photovoltaic tile. The reflective layer covers the side surface of the vertical plate facing the laminated assembly.

[0005] The photovoltaic tile of this application covers the surface of the solar cells with a main plate. The edge of the main plate is connected to the vertical plate. A reflective layer is provided on the side of the vertical plate facing the laminated module, so that sunlight shining on the vertical plate is reflected to the laminated module through the reflective layer, thereby increasing the amount of sunlight absorbed by the solar cells and improving the power generation efficiency of the photovoltaic tile.

[0006] In some implementations, the first included angle α is in the range of 90°≤α<180°.

[0007] In this way, by setting the range of the first included angle α reasonably, the upright plate can receive and reflect sunlight to a greater extent.

[0008] In some embodiments, the thickness of the reflective layer ranges from 0.3 μm to 25 μm.

[0009] In this way, by setting the thickness of the reflective layer appropriately, the angle at which the reflective layer reflects sunlight is within the design range.

[0010] In some embodiments, the locking structure is disposed on the two opposite edges of the main body plate along a first direction, and the locking structure overlaps with the locking structure of another photovoltaic tile adjacent along the first direction.

[0011] Thus, by setting the locking edge structure on the two opposite edges of the main plate along the first direction, the locking edge structure overlaps with the locking edge structure of another photovoltaic tile adjacent in the first direction, so that multiple photovoltaic tiles can be overlapped sequentially along the first direction.

[0012] In some embodiments, the locking structure extends along a second direction, which is parallel to the side length direction of the edge of the main plate where the locking structure is located, and the length of the locking structure extending along the second direction ranges from 0.8m to 6m.

[0013] Thus, by extending the seam lock structure along the second direction, that is, along the side length of the edge of the main plate where the seam lock structure is located, the connection strength between the two back plates connected by the seam lock structure is improved.

[0014] In some embodiments, the upright includes a first end and a second end, the first end being connected to the main body plate and the second end being located away from the main body plate, the second end being configured to abut against the second end of another upright that is overlapped as the back plate overlaps with another back plate.

[0015] In this way, the structural stability between the two overlapping uprights is improved by the second end abutting against the second end of the other upright.

[0016] In some embodiments, the vertical distance between the second end and the main body plate ranges from 18mm to 68mm.

[0017] In this way, by setting a reasonable vertical distance between the second end and the main plate, that is, by setting a reasonable height difference between the position where the vertical plate is furthest from the main plate and the main plate relative to the main plate, the obstruction of sunlight by the vertical plate is reduced, and the concentrated reflection effect of the reflective texture on sunlight is optimized.

[0018] In some embodiments, the reflective layer is a mirror-like metal film.

[0019] In this way, by attaching a mirrored metal film to the side of the vertical panel facing the laminated module, sunlight shining on the vertical panel is reflected by the mirrored metal film to the laminated module, thereby improving the power generation efficiency of the solar cells.

[0020] In some embodiments, the reflective layer has a rough surface.

[0021] In this way, by covering the side of the vertical panel facing the laminated module with a reflective layer with a rough surface, sunlight hitting the vertical panel can be diffusely reflected to the laminated module, thereby improving the power generation efficiency of the solar cells.

[0022] The photovoltaic module of this application includes a plurality of photovoltaic tiles as described above, and the plurality of photovoltaic tiles are electrically connected.

[0023] In this way, connecting multiple photovoltaic tiles electrically can increase power generation.

[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:

[0026] Figure 1 This is a three-dimensional structural diagram of the photovoltaic tile according to an embodiment of the present invention;

[0027] Figure 2 yes Figure 1 Enlarged schematic diagram of section I;

[0028] Figure 3 This is a schematic diagram of the overlapping structure of the photovoltaic tile according to an embodiment of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of a photovoltaic module according to an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100-Photovoltaic tile; 10-Laminated module; 11-Front panel; 12-Solar cell; 20-Back panel; 21-Main panel; 30-Seamless structure; 31-Standing panel; A-First end; B-Second end; 33-Reflective texture; 331-Microstructure; 3311-First side; 3312-Second side; 303-Ventilation duct; 1000-Photovoltaic module; 1001-Mounting surface. Detailed Implementation

[0032] 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.

[0033] 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.

[0034] 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 settings 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 settings 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.

[0035] Please see Figures 1-3 The photovoltaic tile 100 of this application includes a laminated assembly 10 and a back sheet 20. The laminated assembly 10 includes a front panel 11 and a solar cell 12, with the front panel 11 covering the solar cell 12. The back sheet 20 includes a main panel 21 and a locking structure 30. The main panel 21 covers the side surface of the solar cell 12 away from the front panel 11. The locking structure 30 is disposed at the edge of the main panel 21 and located outside the edge of the laminated assembly 10. The locking structure 30 includes a vertical plate 31 connected to the main panel 21 and a reflective layer 34. The vertical plate 31 forms a first included angle α with the main panel 21. The locking structure 30 is configured to overlap with the locking structure 30 of another photovoltaic tile 100. The reflective layer 34 covers the side surface of the vertical plate 31 facing the laminated assembly 10.

[0036] In this embodiment of the photovoltaic tile 100, the surface of the solar cell 12 is covered by a main plate 21. The edge of the main plate 21 is connected to the vertical plate 31. A reflective layer 34 is provided on the side of the vertical plate 31 facing the laminated assembly 10, so that sunlight shining on the vertical plate 31 is reflected to the laminated assembly 10 through the reflective layer 34, thereby increasing the amount of sunlight absorbed by the solar cell 12 and improving the power generation efficiency of the photovoltaic tile 100.

[0037] Specifically, the photovoltaic tile 100 can be applied to building surfaces or outdoor flat ground. For example, the photovoltaic tile 100 can be laid on roofs, walls, or public facilities such as streetlights. Alternatively, the photovoltaic tile 100 can be laid over large areas to construct photovoltaic power generation bases. The solar cell 12 is used to convert light energy into electrical energy. The solar cell 12 can be a crystalline silicon cell manufactured using technologies such as Perc (Passivated Emitter Rear Cell), Topcon (Tunnel Oxide Passivated Contact), or HJT (Heterojunction with Intrinsic Thin-film), or it can be a perovskite cell.

[0038] The front panel 11 and the back panel 20 respectively cover the two sides of the battery cell 12 in the thickness direction to protect the battery cell 12. It should be noted that the front panel 11 and the back panel 20 covering the surface of the battery cell 12 means that the projection range of the front panel 11 and the back panel 20 on the battery cell 12 in the thickness direction can cover the corresponding side surface of the battery cell 12, and there is no limitation on whether the front panel 11 and the battery cell 12, or the back panel 20 and the battery cell 12 are in direct contact.

[0039] Optionally, the laminated module 10 may also include weather-resistant membranes, waterproof membranes, adhesive membranes, or other functional layers. The layers in the laminated module 10 and the backsheet 20 are stacked sequentially along the thickness direction of each layer. It is understood that the thickness direction of the photovoltaic tile 100 is consistent with the thickness direction of the laminated module 10 (and its layers) and the backsheet 20.

[0040] Optionally, the photovoltaic tile 100 is flat in shape, and the structure of each layer in the laminated module 10 and the main plate 21 of the back sheet 20 are all flat structures.

[0041] The photovoltaic tile 100 is typically laid with the front panel 11 on top and the back panel 20 on the bottom. For ease of explanation, the direction from the front panel 11 to the back panel 20 along the thickness direction of the photovoltaic tile 100 is defined as the top-to-bottom direction. The surface of the solar cell 12 facing the front panel 11 is the light-receiving surface, and the layers in the laminated module 10 located above the solar cell 12 are all light-transmitting.

[0042] Optionally, the front panel 11 can be made of highly transparent materials such as resin, plastic, or glass. For example, the front panel 11 can be a transparent PET (polyethylene terephthalate) sheet. Alternatively, the front panel 11 can be a tinted glass sheet.

[0043] Optionally, the projections of the front panel 11 along the thickness direction onto the plane where the battery cell 12 is located coincide.

[0044] Optionally, the back panel 20 and the laminating assembly 10 can be laminated together, or they can be connected by fasteners such as locking screws and rivets, or an adhesive layer can be provided on the back panel 20 and the laminating assembly 10, and the back panel 20 and the laminating assembly 10 can be connected by adhesive.

[0045] Optionally, the back panel 20 can be made of aluminum or aluminum alloy plate, color steel plate, aluminized zinc plate, galvanized plate, etc.

[0046] The back panel 20 has at least two opposite edges that extend beyond the same-side edge of the laminate assembly 10. Locking structures 30 are provided on the two opposite edges of the back panel 20 that extend beyond the laminate assembly 10 and overlap with the locking structure 30 of the adjacent photovoltaic tile 100 in the opposite direction of the two locking structures 30.

[0047] Both the upright plate 31 and the main body plate 21 are rigid components and form a rigid connection, allowing the back plate 20 to be connected to another back plate 20 by overlapping the locking structure 30 of the locking structure 30. Optionally, the locking structure 30 is also made of metal. Furthermore, the main body plate 21 and the locking structure 30 are integrally formed.

[0048] Optionally, the width of the upright panel 31 is significantly smaller than that of the main panel 21. The upright panel 31 may extend along the edge of the main panel 21 in a long strip shape. The reflective layer 34 completely covers the surface of the upright panel 10 facing the laminate assembly 10.

[0049] Optionally, the reflective layer 34 can be deposited or adhered to the surface of the vertical plate 31. For example, if the reflective layer 34 is deposited on the surface of the vertical plate 31, the reflective layer 34 can be an aluminum film, a silver film, or a multilayer dielectric film made of titanium dioxide and silicon dioxide. Alternatively, if the reflective layer 34 is adhered to the surface of the vertical plate 31, the reflective layer 34 can be an aluminum foil, a metallized PET film, a film made of nickel-chromium alloy, or a film layer combining silver, PET, and a multilayer dielectric film. The reflective layer 34 can refract sunlight incident on the vertical plate 31 through the multilayer dielectric film and ultimately reflect it to the laminate assembly 10.

[0050] In some implementations, the first included angle α is in the range of 90°≤α<180°.

[0051] Thus, by setting the range of the first included angle α appropriately, the vertical panel can receive and reflect sunlight to a maximum extent.

[0052] Specifically, the upright plate 31 may be a flat plate, with a first included angle α formed on the side of the upright plate 31 facing the laminating assembly. The upright plate 31 extends along the edge of the main plate 21 and at least exceeds the side length of the laminating assembly on that side edge. For example, the first included angle α may be 90°, 112.5°, 116°, 120°, etc.

[0053] Optionally, such as Figure 3As shown, the first included angle α is an obtuse angle. The upright plate 31 overlaps with one side upright plate 31 on another back plate 20, and the two overlapping upright plates 31 are inclined towards each other to form a ventilation channel 303.

[0054] Furthermore, the upright plate 31 extends along the edge of the main plate 21 in a long strip shape, and the resulting ventilation channel 303 runs through the edge of the main plate 21.

[0055] Optionally, the locking structure 30 is disposed on the two opposite edges of the back plate 20 along the first direction, and the two edges of the main plate 21 in the first direction are respectively connected to the two upright plates 31, and the two first included angles α formed by the two upright plates 31 and the main plate 21 face opposite directions. The same main plate 21 and the two upright plates 31 can form two equal first included angles α, or they can form two first included angles α with different angles.

[0056] In some embodiments, the thickness of the reflective layer 34 ranges from 0.3 μm to 25 μm. It should be noted that... Figure 2 The enlarged view of the vertical plate 31 in the figure, and the structural proportions of the vertical plate 31, the reflective layer 34 on the vertical plate 31, and the photovoltaic tile 100 as a whole shown in the figure, are not intended to limit the technical solution of this application.

[0057] Thus, by setting the thickness of the reflective layer 34 to be reasonable, the reflection angle of the reflective layer 34 to sunlight is within the design range.

[0058] Specifically, the reflective layer 34 can be a single-layer dielectric film or a multi-layer dielectric film. The thickness of the reflective layer 34 refers to the total thickness of the dielectric layers constituting the reflective layer 34. For example, the thickness of the reflective layer 34 can be 0.3um, 1.2um, 5.5um, 8.4um, 13um, 17um, or 24um.

[0059] Please see Figure 1 and Figure 4 In some embodiments, the locking structure 30 is disposed on the two opposite edges of the main body plate 21 along the first direction, and the locking structure 30 overlaps with the locking structure 30 of another photovoltaic tile 100 adjacent to it along the first direction.

[0060] Thus, by setting the locking edge structure 30 on the two opposite sides of the main body plate 21 along the first direction, the locking edge structure 30 overlaps with the locking edge structure 30 of another photovoltaic tile 100 adjacent in the first direction, so that multiple photovoltaic tiles 100 can be overlapped sequentially along the first direction.

[0061] Specifically, the locking edge structure 30 is disposed on the opposite sides of the main body plate 21 along the first direction, and the laminated assembly 10 is located between the two upright plates 31. The reflective texture 33 is formed on the opposite side surface of the two locking edge structures 30 on the same photovoltaic tile 100, that is, the side surface facing the laminated assembly 10. The reflective texture 33 on the two upright plates 31 can reflect more sunlight to the laminated assembly 10, thereby increasing the light energy absorbed by the solar cell 12.

[0062] Please see Figure 1 In some embodiments, the locking structure 30 extends along a second direction, which is parallel to the side length direction of the edge of the main body plate 21 where the locking structure 30 is located, and the length of the locking structure 30 extending along the second direction ranges from 0.8m to 6m.

[0063] Thus, by extending the locking structure 30 along the second direction, that is, along the side length direction of the edge of the main body plate 21 where the locking structure 30 is located, the connection strength between the two back plates 20 connected by the locking structure 30 is improved.

[0064] Specifically, taking a square flat plate as an example, the two intersecting sides of the main plate 21 extend along a first direction and a second direction, respectively. The two edges of the main plate 21 along the first direction are connected to two vertical plates 31, respectively. The vertical plates 31 extend along the side length direction of the main plate 21 and completely cover that side edge; that is, the length of the locking structure 30 extending along the second direction is equal to the side length of the edge of the main plate 21 to which the locking structure 30 is connected. For example, the length of the locking structure 30 extending along the second direction can be 0.8m, 1.45m, 2.3m, 4.2m, 5.7m, or 6m.

[0065] Please see Figure 3 and Figure 4 In some embodiments, the upright plate 31 includes a first end A and a second end B, the first end A being connected to the main plate 21, and the second end B being located away from the main plate 21. The second end B is configured to abut against the second end B of the other upright plate 31 that is being overlapped as the back plate 20 overlaps with another back plate 20.

[0066] In this way, the structural stability between the two overlapping uprights is improved by the second end abutting against the second end of the other upright.

[0067] Optionally, the two main body plates 21 of the two overlapping back plates 20 are laid flat on the mounting surface 1001, which can be a horizontal plane with a first included angle α of 90°, meaning the upright plate 31 is vertically positioned relative to the horizontal plane. The first ends A of the two overlapping upright plates 31 abut against each other, and the two second ends B also abut against each other, so that the two overlapping upright plates 31 approximately overlap.

[0068] Please see Figure 3 In some embodiments, the vertical distance between the second end B and the main body plate 21 ranges from 18mm to 68mm.

[0069] Thus, by setting a reasonable vertical distance between the second end B and the main body plate 21, that is, by setting a reasonable height difference between the position where the vertical plate 31 is furthest from the main body plate 21 and the main body plate 21, the obstruction of sunlight by the vertical plate 31 is reduced, and the concentrated reflection effect of the reflective texture 33 on sunlight is optimized.

[0070] Specifically, the upright plate 31 includes a first end A connected to the main plate 21 and a second end B away from the main plate 21. The second ends B of the two overlapping upright plates 31 abut against each other, and the second end B is located on the upright plate 31 at the furthest distance from the main plate 21. For example, the vertical distance between the second end and the main plate can be 18mm, 21mm, 33mm, 36mm, 45.5mm, 57mm, or 68mm.

[0071] Please see Figure 4 , Figure 2 The straight lines with arrows indicate the incident and reflected paths of sunlight. In some embodiments, the reflective layer 34 is a mirror-finished metal film. Thus, by attaching the mirror-finished metal film to the surface of the upright plate 31 facing the laminated assembly 10, sunlight incident on the upright plate 31 is reflected by the mirror-finished metal film to the laminated assembly 10, improving the power generation efficiency of the solar cell 12. Specifically, the reflective layer 34 can be a film or coating made of metal, and the surface of the reflective layer 34 facing away from the upright plate 31 has a smooth, mirror-like finish.

[0072] In some embodiments, the reflective layer 34 has a rough surface. Thus, by covering the side of the upright plate 31 facing the laminate assembly 10 with the rough-surfaced reflective layer 34, sunlight incident on the upright plate 31 can be diffusely reflected to the laminate assembly 10, improving the power generation efficiency of the solar cells 12. Specifically, the side of the reflective layer 34 facing away from the upright plate 31 has a rough surface.

[0073] In some embodiments, two upright plates 31 are respectively provided on both sides of the main body plate 21, the laminating assembly 10 is located in the area between the two upright plates 31 facing each other, and the reflective layer 34 is disposed on the surface of the two upright plates 31 facing each other. Sunlight can be reflected from the reflective layer 34 of either upright plate 31 to the laminating assembly 10 in the middle, or it can be reflected from the reflective layer 34 of one upright plate 31 to the reflective layer 34 of the other upright plate 31, and then reflected again to the laminating assembly 10.

[0074] The photovoltaic module 1000 of this application includes a plurality of photovoltaic tiles 100, which are electrically connected. Thus, the electrical connection of the plurality of photovoltaic tiles 100 can increase the power generation capacity of the photovoltaic module 1000.

[0075] Optionally, in some embodiments, multiple photovoltaic tiles 100 are arranged along a first direction and a fourth direction, forming an angle between the first and fourth directions. The photovoltaic tiles 100 arranged along the first direction have locking edges 30 on their opposite sides in the first direction, and are sequentially overlapped along the first direction via the locking edges 30; the photovoltaic tiles 100 arranged along the fourth direction also have locking edges 30 on their opposite sides in the fourth direction, and are sequentially overlapped along the fourth direction via the locking edges 30. The outermost photovoltaic tile 100 along the first direction can overlap with the outermost photovoltaic tile 100 along the fourth direction. In this embodiment, the photovoltaic tiles 100 arranged along the first direction and the photovoltaic tiles 100 arranged along the fourth direction can be mounted on different mounting surfaces 1001.

[0076] Optionally, in other embodiments, a plurality of photovoltaic tiles 100 are arranged along a first direction and a second direction, the first direction and the second direction being parallel to the same mounting surface 1001. The uprights 31 on the plurality of photovoltaic tiles 100 may be parallel to each other along the first direction and extend in a strip shape along the second direction.

[0077] In the description of embodiments of this utility model, 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 embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0078] 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.

[0079] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A photovoltaic tile, characterized in that, include: A laminated assembly, the laminated assembly including a front panel and battery cells, the front panel covering the battery cells; and A backsheet, the backsheet comprising a main plate and a locking structure, the main plate covering the side surface of the battery cell facing away from the front plate, the locking structure being disposed at the edge of the main plate and located outside the edge of the laminate assembly; The locking structure includes a vertical plate and a reflective layer connected to the main plate. The vertical plate forms a first angle α with the main plate. The locking structure is configured to overlap with the locking structure of another photovoltaic tile. The reflective layer covers the side surface of the vertical plate facing the laminated assembly.

2. The photovoltaic tile according to claim 1, characterized in that, The range of the first included angle α is: 90°≤α<180°.

3. The photovoltaic tile according to claim 1, characterized in that, The thickness of the reflective layer ranges from 0.3 μm to 25 μm.

4. The photovoltaic tile according to claim 1, characterized in that, The locking structure is disposed on the two opposite edges of the main body plate along the first direction, and the locking structure overlaps with the locking structure of another photovoltaic tile adjacent to it along the first direction.

5. The photovoltaic tile according to claim 1, characterized in that, The locking edge structure extends along a second direction, which is parallel to the side length direction of the edge of the main plate where the locking edge structure is located. The length of the locking edge structure extending along the second direction ranges from 0.8m to 6m.

6. The photovoltaic tile according to claim 1, characterized in that, The upright plate includes a first end and a second end, the first end being connected to the main plate, and the second end being away from the main plate. The second end is configured to abut against the second end of the other upright plate that is overlapped as the back plate overlaps with another back plate.

7. The photovoltaic tile according to claim 6, characterized in that, The vertical distance between the second end and the main body plate ranges from 18mm to 68mm.

8. The photovoltaic tile according to claim 6, characterized in that, The reflective layer is a mirror-finish metal film.

9. The photovoltaic tile according to claim 8, characterized in that, The reflective layer has a rough surface.

10. A photovoltaic module, characterized in that, The photovoltaic module includes a plurality of photovoltaic tiles as described in any one of claims 1-9, and the plurality of photovoltaic tiles are electrically connected.

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