Photovoltaic module

Abstract

The utility model discloses a photovoltaic module, and belongs to the technical field of new energy. The photovoltaic module comprises a frame, and the side part of the frame is provided with an assembling groove. The periphery of the laminating piece is embedded into the assembling groove; the edge sealing adhesive tape is arranged between the assembling groove and the laminated piece; wherein the edge sealing adhesive tape is annularly arranged and annularly arranged on the peripheral side of the laminated piece. The edge sealing adhesive tape is annularly arranged on the peripheral side of the laminated piece, so that the laminated piece can be separated from the frame, a certain buffering effect on the laminated piece is achieved, the probability of collision damage of the laminated piece and the frame is reduced, the sealing performance of the assembly is improved, the service life of the assembly is prolonged, the installation process can be simplified, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the field of new energy technology, and in particular, relates to a photovoltaic module. Background Art

[0002] At present, the frames of photovoltaic modules are encapsulated with silicone and laminates. The laminates are in direct contact with the frames, which can easily cause damage to the laminates due to bumps. In addition, photovoltaic modules encapsulated with silicone are prone to silicone overflow during the manufacturing process, especially for steel frames, which require manual cleaning and scraping, increasing labor costs. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a photovoltaic module, which improves the sealing performance and service life of the module, simplifies the installation process, reduces production costs, and improves production efficiency.

[0004] In a first aspect, the present application provides a photovoltaic module, comprising:

[0005] A frame, wherein a side portion of the frame is provided with a mounting groove;

[0006] A laminated part, the periphery of which is embedded in the assembly groove;

[0007] Edge-sealing tape, the edge-sealing tape is arranged between the assembly groove and the laminate; wherein,

[0008] The edge-sealing tape is arranged in a ring shape and is arranged around the circumference of the laminate.

[0009] According to the photovoltaic module of the present application, by arranging an edge-sealing tape ring on the circumference of the laminate, the laminate can be separated from the frame, which has a certain buffering effect on the laminate, reduces the probability of collision damage between the laminate and the frame, improves the sealing performance and service life of the module, and can simplify the installation process, reduce production costs, and improve production efficiency.

[0010] According to one embodiment of the present application, the edge banding tape includes a first section, a second section and a third section connected in sequence, the first section and the third section are respectively connected to two opposite surfaces of the laminate, and the second section is connected to a side of the laminate.

[0011] According to an embodiment of the present application, the width W1 of the first segment satisfies 1mm≤W1≤10mm; and / or,

[0012] The width W2 of the second section satisfies 1mm≤W2≤10mm; and / or,

[0013] The width W3 of the third section satisfies 1mm≤W3≤10mm.

[0014] According to one embodiment of the present application, the thickness S1 of the first section satisfies 0.1 mm ≤ S1 ≤ 5 mm; and / or,

[0015] The thickness S2 of the second section satisfies 0.1 mm ≤ S2 ≤ 5 mm; and / or,

[0016] The thickness S3 of the third section satisfies 0.1 mm ≤ S3 ≤ 5 mm.

[0017] According to one embodiment of the present application, the thickness S1 of the first section, the thickness S2 of the third section, the thickness S0 of the laminate, and the height H of the assembly groove satisfy:

[0018] S1+S2+S0>H.

[0019] According to one embodiment of the present application, the frame includes a substrate and an aluminum-magnesium-zinc coating provided on the surface of the substrate, and the thickness S4 of the substrate satisfies 0.2 mm ≤ S4 ≤ 1 mm;

[0020] The thickness S5 of the aluminum-magnesium-zinc coating satisfies 1 μm≤S4≤200 μm.

[0021] According to an embodiment of the present application, the edge-sealing tape comprises at least an adhesive layer, a sealing layer and a protective layer arranged along a thickness direction, the adhesive layer is connected to the laminate, and the protective layer is connected to the frame.

[0022] According to an embodiment of the present application, a groove is provided on the protective layer, and a protrusion is provided on the inner side wall of the assembly groove, and the protrusion cooperates with the groove to limit position.

[0023] According to an embodiment of the present application, a buffer portion is provided on the edge of the edge-sealing tape, and the buffer portion corresponds to the notch of the assembly groove.

[0024] According to an embodiment of the present application, the edge-sealing tape is arranged in the assembly groove.

[0025] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 This is one of the structural schematic diagrams of the photovoltaic assembly provided in the embodiment of the present application;

[0028] Figure 2It is one of the partial cross-sectional structural schematic diagrams of the photovoltaic module provided in the embodiment of the present application;

[0029] Figure 3 This is the second schematic diagram of the partial cross-sectional structure of the photovoltaic module provided in the embodiment of the present application;

[0030] Figure 4 This is one of the structural schematic diagrams of the edge-sealing tape provided in the embodiments of the present application;

[0031] Figure 5 This is one of the cross-sectional structural schematic diagrams of the edge-sealing tape provided in the embodiments of the present application;

[0032] Figure 6 It is one of the exploded structural schematic diagrams of the laminate provided in the embodiments of the present application.

[0033] Reference numerals:

[0034] 1. Photovoltaic modules;

[0035] 11. frame; 111. assembly slot;

[0036] 12, laminate; 121, glass layer; 122, first adhesive film layer; 123, battery cell layer; 124, second adhesive film layer; 125, backplane;

[0037] 13. Edge-banding tape; 131. First section; 132. Second section; 133. Third section. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0039] Reference below Figure 1-Figure 6 A photovoltaic module according to an embodiment of the present application is described.

[0040] According to some embodiments of the present application, Figure 1-Figure 3 As shown, the photovoltaic module 1 includes a frame 11 , a laminate 12 and an edge-sealing tape 13 .

[0041] In this embodiment, a mounting groove 111 is provided on the side of the frame 11 .

[0042] The frame 11 is used to support and fix the laminate 12. The opening direction of the assembly groove 111 of the frame 11 is set toward the side of the frame 11 to facilitate the assembly of the laminate 12 in the assembly groove 111. The cross section of the frame 11 in the length direction can be as follows: Figure 2 S type as shown or Figure 3 The F type shown is determined based on design and usage requirements and is not limited here.

[0043] In this embodiment, the periphery of the laminate 12 is embedded in the assembly groove 111 .

[0044] The laminate 12 is arranged in a plate shape, such as Figure 6 As shown, the laminate 12 may include a glass layer 121, a first adhesive film layer 122, a cell layer 123, a second adhesive film layer 124 and a back plate 125 layer distributed in the thickness direction. The glass layer 121 is located at the outermost layer to protect the cell from wear, corrosion and aging. The first adhesive film layer 122 is used to bond and fix the glass layer 121 to the cell layer 123, and has a certain waterproof and moisture-proof effect. The cell layer 123 can convert sunlight into electrical energy. The cell is usually made of silicon wafers, including single crystal silicon, polycrystalline silicon and thin film silicon. The second adhesive film layer 124 is used to bond and fix the cell layer 123 to the back plate 125 layer. The back plate 125 layer is generally arranged at the innermost layer of the photovoltaic module 1. The back plate 125 is usually made of PET (polyethylene terephthalate), PVC (polyvinyl chloride), glass and other materials, and has good weather resistance and UV resistance. The glass layer 121 , the first adhesive film layer 122 , the battery cell layer 123 , the second adhesive film layer 124 and the back plate 125 which are laid out in sequence are packaged by a laminator to form a laminate 12 .

[0045] In this embodiment, the edge-sealing tape 13 is disposed between the assembly groove 111 and the laminate 12 .

[0046] By arranging the edge banding tape 13 between the assembly groove 111 and the laminate 12, the laminate 12 is supported in the assembly groove 111 by the edge banding tape 13, and the laminate 12 is separated from the frame 11, thereby avoiding direct contact between the laminate 12 and the frame 11 and reducing the probability of collision damage.

[0047] In this embodiment, the edge-sealing tape 13 is arranged in a ring shape and is arranged around the circumference of the laminate 12 .

[0048] By setting the edge banding tape 13 in a ring shape, after the laminate 12 is processed, it can be directly put around the circumference of the laminate 12 to seal the gap on the side of the laminate 12, with better sealing performance and simple assembly, which greatly reduces the production difficulty and improves the assembly efficiency.

[0049] In actual implementation, because the edge banding tape 13 is set to seal the laminate 12, there is no need to add silicone to the assembly groove 111 for sealing, thereby avoiding the occurrence of glue overflow, and there is no need to set a glue overflow groove in the assembly groove 111 of the frame 11, thereby reducing the processing difficulty of the frame 11. The edge banding tape 13 is looped around the circumference of the laminate 12, and then the laminate 12 and the edge banding tape 13 are embedded in the assembly groove 111, thereby reducing processing and production costs and improving production efficiency.

[0050] According to some embodiments of the present application, Figure 4 and Figure 5 As shown, the edge banding tape 13 may include a first section 131, a second section 132 and a third section 133 connected in sequence, the first section 131 and the third section 133 may be connected to two opposite surfaces of the laminate 12 respectively, and the second section 132 is connected to the side of the laminate 12.

[0051] In this embodiment, the cross-section of the edge banding tape 13 in the length direction can be set in a C shape, so that the edge banding tape 13 includes a first section 131, a second section 132 and a third section 133 connected in sequence along the thickness direction of the laminate 12, the second section 132 is opposite to the side of the laminate 12, and the first section 131 and the second section 132 are respectively attached to and connected to two opposite surfaces of the laminate 12 in its thickness direction. This structure has good sealing and protection effects.

[0052] For example, the side of the laminate 12 close to the back plate 125 is the lower surface, and the side close to the glass is the upper surface. The first section 131 is connected to the upper surface of the laminate 12, and the second section 132 is connected to the lower surface of the laminate 12.

[0053] According to some embodiments of the present application, Figure 5 As shown, the width W1 of the first section 131 may satisfy 1mm≤W1≤10mm; and / or the width W2 of the second section 132 may satisfy 1mm≤W2≤10mm; and / or the width W3 of the third section 133 may satisfy 1mm≤W3≤10mm.

[0054] In this embodiment, the width of the first section 131 and the third section 133 is limited to ensure that the first section 131 and the third section 133 have sufficient contact area with the surface of the laminate 12, thereby ensuring the sealing effect and the protection effect of the laminate 12, and the power generation efficiency of the photovoltaic module 1 will not be affected due to the excessive contact area. It can be understood that the width of the second section 132 is determined according to the thickness of the laminate 12, and the width of the second section 132 is limited to avoid the second section 132 from being too large, which affects the fitting effect between the second section 132 and the side of the laminate 12 and reduces the sealing.

[0055] The width W1 of the first section 131 has a value range of [1 mm, 10 mm]. For example, W1 can have a value of 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm or other values ​​between 1 mm and 10 mm, which are not limited here. In a preferred embodiment, W1 can have a value range of [3 mm, 8 mm].

[0056] The width W2 of the second section 132 has a value range of [1 mm, 10 mm]. For example, W2 can have a value of 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm or other values ​​between 1 mm and 10 mm, which are not limited here. In a preferred embodiment, W2 can have a value range of [3 mm, 8 mm].

[0057] The width W3 of the third section 133 has a value range of [1 mm, 10 mm]. For example, W3 can have a value of 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm or other values ​​between 1 mm and 10 mm, which are not limited here. In a preferred embodiment, W3 can have a value range of [3 mm, 8 mm].

[0058] According to some embodiments of the present application, Figure 5 As shown, the thickness S1 of the first section 131 may satisfy 0.1 mm ≤ S1 ≤ 5 mm; and / or the thickness S2 of the second section 132 may satisfy 0.1 mm ≤ S2 ≤ 5 mm; and / or the thickness S3 of the third section 133 may satisfy 0.1 mm ≤ S3 ≤ 5 mm.

[0059] In this embodiment, the thickness of the first section 131, the second section 132 and the third section 133 are limited to ensure that the thickness of the edge-sealing tape 13 is not too thin, which will affect the sealing effect and buffering effect of the edge-sealing tape 13, reduce the difficulty of production, and prevent the thickness of the edge-sealing tape 13 from being too thick to affect the assembly of the photovoltaic module 1, thereby reducing the impact on the spatial layout.

[0060] The thickness S1 of the first section 131 has a value range of [0.1 mm, 5 mm]. For example, S1 can have a value of 0.1 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm or other values ​​between 0.1 mm and 5 mm, which are not limited here. In a preferred embodiment, S1 can have a value range of [0.3 mm, 2 mm].

[0061] The thickness S2 of the second section 132 has a value range of [0.1 mm, 5 mm]. For example, S2 can have a value of 0.1 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm or other values ​​between 0.1 mm and 5 mm, which are not limited here. In a preferred embodiment, S2 can have a value range of [0.3 mm, 2 mm].

[0062] The thickness S3 of the third section 133 has a value range of [0.1 mm, 5 mm]. For example, S3 can have a value of 0.1 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm or other values ​​between 0.1 mm and 5 mm, which are not limited here. In a preferred embodiment, S3 can have a value range of [0.3 mm, 2 mm].

[0063] In this embodiment, the thicknesses of the first section 131 , the second section 132 , and the third section 133 may be consistent or inconsistent, which is not limited here.

[0064] According to some embodiments of the present application, Figure 2 and Figure 3 As shown, the thickness S1 of the first section 131, the thickness S2 of the third section 133, the thickness S0 of the laminate 12, and the height H of the assembly groove 111 may satisfy: S1+S2+S0>H.

[0065] It is understandable that the height direction of the assembly groove 111 is the thickness direction of the laminate 12. In this embodiment, the laminate 12, the edge banding tape 13 and the assembly groove 111 are interference fit, so that the first section 131, the third section 133 and the laminate 12 can be clamped and fixed in the assembly groove 111, thereby improving the assembly strength.

[0066] According to some embodiments of the present application, the frame 11 may include a substrate and an aluminum-magnesium-zinc coating provided on the surface of the substrate, and the thickness S4 of the substrate may satisfy 0.2mm≤S4≤1mm; the thickness S5 of the aluminum-magnesium-zinc coating may satisfy 1μm≤S4≤200μm.

[0067] In this embodiment, the base material of the frame 11 can be made of steel, which has higher structural strength and stronger bearing capacity. By providing an aluminum-magnesium-zinc coating on the surface of the base material, the corrosion resistance of the frame 11 is improved, the service life of the photovoltaic module 1 is extended, and the maintenance cost is reduced.

[0068] By limiting the thickness of the substrate and the thickness of the aluminum-magnesium-zinc coating, the production cost can be controlled while ensuring the structural strength and corrosion resistance.

[0069] The thickness S4 of the substrate has a value range of [0.2 mm, 1 mm]. For example, S4 can be 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm or other values ​​between 0.2 mm and 1 mm, which are not limited here. In a preferred embodiment, S4 can have a value range of [0.4 mm, 8 mm].

[0070] The thickness S5 of the aluminum-magnesium-zinc coating has a value range of [1 μm, 200 μm]. For example, S5 can be 1 μm, 5 mm, 10 mm, 20 mm, 50 mm, 80 mm, 100 mm, 150 mm, 200 μm or other values ​​between 1 μm and 200 μm, which are not limited here. In a preferred embodiment, the value range of S5 can be [5 μm, 80 μm].

[0071] According to some embodiments of the present application, the edge-sealing tape 13 may include at least an adhesive layer, a sealing layer, and a protective layer arranged along a thickness direction, the adhesive layer is connected to the laminate 12 , and the protective layer is connected to the frame 11 .

[0072] In this embodiment, the edge-sealing tape 13 can be a multi-layer composite to improve the tensile and tearing strength of the edge-sealing tape 13. The edge-sealing tape 13 includes an adhesive layer, a sealing layer and a protective layer. The adhesive layer is used to bond with the laminate 12. The adhesive layer is provided to facilitate installation without the need for additional adhesive glue, thereby reducing production costs and production time. The sealing layer is provided to isolate water vapor and ensure the sealing of the edge-sealing tape 13. The protective layer is provided on the outside to abut against the assembly groove 111 of the frame 11. The structure of the protective layer is stable and not easily damaged, so as to protect the edge-sealing tape 13 and the laminate 12, thereby improving the durability and reliability of the photovoltaic module 1.

[0073] In some embodiments, the sealing layer may be made of a highly elastic material, which can form an airtight and watertight barrier between the edge-sealing tape 13 and the laminate 12 to effectively prevent the intrusion of moisture or dust. For example, the sealing layer may be made of silicone.

[0074] In some embodiments, the sealing layer may be made of a waterproof and breathable material that allows air to pass through but does not allow moisture to pass through. For example, the sealing layer may be made of a polymer material and have a microporous structure that allows water vapor to pass through but prevents liquid water and dust from entering, thereby preventing the pressure between the edge-sealing tape 13 and the laminate 12 from increasing due to water vapor accumulation while keeping the interior dry. The polymer material may be polytetrafluoroethylene (PTFE), polyurethane (PU), polyethylene (PE), etc.

[0075] In some embodiments, the protective layer has tear resistance and tensile strength. For example, the surface of the protective layer may be provided with a reinforcing material, which may include glass fiber, polyester fiber, etc., to improve the tensile strength and tear resistance of the edge banding tape 13. In addition, anti-skid powder or anti-skid particles may be provided on the surface of the protective layer to increase the friction and anti-skid performance of the edge banding tape 13.

[0076] According to some embodiments of the present application, a groove is provided on the protective layer, and a protrusion is provided on the inner side wall of the assembly groove 111, and the protrusion cooperates with the groove to limit position.

[0077] In this embodiment, a groove may be provided on the surface of the protective layer facing the assembly groove 111, and a protrusion that cooperates with the groove may be provided on the inner side wall of the assembly groove 111. When the laminate 12 and the edge banding tape 13 are assembled into the assembly groove 111, the protrusion may cooperate with the groove to play a limiting role and improve the stability of the connection structure.

[0078] In other embodiments, the inner side wall of the assembly groove 111 may be provided with a groove, and the surface of the protective layer may be provided with a protrusion.

[0079] According to some embodiments of the present application, a buffer portion may be provided on the edge of the edge-sealing tape 13 , and the buffer portion may correspond to the notch of the assembly groove 111 .

[0080] In this embodiment, the edge of the edge banding tape 13 can correspond to the notch of the assembly groove 111, so that the edge banding tape 13 is clamped between the laminate 12 and the frame 11 while minimizing the encroachment of the edge banding tape 13 on the surface of the laminate 12. The edge of the edge banding tape 13 can be provided with a buffer portion, which can be provided on the side of the edge banding tape 13 close to the laminate 12. The buffer portion can be a flexible plastic or rubber material to absorb and disperse possible impact forces, reduce damage caused by direct contact, and improve the stability of the component.

[0081] According to some embodiments of the present application, the edge-sealing tape 13 may be disposed in the assembly groove 111 .

[0082] In this embodiment, the edge banding tape 13 can be integrated into the assembly groove 111. During the production process, the edge banding tape 13 is directly integrated with the frame 11 by bonding or other methods. The laminate 12 is directly installed in the assembly groove 111 and connected to the edge banding tape 13, thereby reducing the difficulty of production and assembly and improving production efficiency.

[0083] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0084] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0085] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0086] In the description of the present application, “plurality” means two or more.

[0087] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0088] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0089] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0090] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A photovoltaic module, characterized in that: include: A frame, wherein a side portion of the frame is provided with a mounting groove; A laminated part, the periphery of which is embedded in the assembly groove; Edge-sealing tape, the edge-sealing tape is arranged between the assembly groove and the laminate; wherein, The edge-sealing tape is arranged in an annular shape and is arranged around the circumference of the laminate; The edge-sealing tape at least comprises an adhesive layer, a sealing layer and a protective layer arranged along a thickness direction, the adhesive layer is connected to the laminate, and the protective layer is connected to the frame.

2. The photovoltaic module according to claim 1, characterized in that: The edge-sealing tape comprises a first section, a second section and a third section which are connected in sequence, wherein the first section and the third section are respectively connected to two opposite surfaces of the laminate, and the second section is connected to a side portion of the laminate.

3. The photovoltaic module according to claim 2, characterized in that: The width W1 of the first section satisfies 1mm≤W1≤10mm; and / or, The width W2 of the second section satisfies 1mm≤W2≤10mm; and / or, The width W3 of the third section satisfies 1mm≤W3≤10mm.

4. The photovoltaic module according to claim 2, characterized in that: The thickness S1 of the first section satisfies 0.1 mm ≤ S1 ≤ 5 mm; and / or, The thickness S2 of the second section satisfies 0.1 mm ≤ S2 ≤ 5 mm; and / or, The thickness S3 of the third section satisfies 0.1 mm ≤ S3 ≤ 5 mm.

5. The photovoltaic module according to claim 4, characterized in that: The thickness S1 of the first section, the thickness S2 of the third section, the thickness S0 of the laminate and the height H of the assembly groove satisfy: S1+S2+S0>H.

6. The photovoltaic module according to any one of claims 1 to 5, characterized in that: The frame includes a substrate and an aluminum-magnesium-zinc coating disposed on the surface of the substrate, and the thickness S4 of the substrate satisfies 0.2 mm ≤ S4 ≤ 1 mm; The thickness S5 of the aluminum-magnesium-zinc coating satisfies 1 μm≤S4≤200 μm.

7. The photovoltaic module according to claim 1, characterized in that: The protective layer is provided with a groove, the inner side wall of the assembly groove is provided with a protrusion, and the protrusion cooperates with the groove to limit position.

8. The photovoltaic module according to claim 1, characterized in that: A buffer portion is provided at the edge of the edge-sealing tape, and the buffer portion corresponds to the notch of the assembly groove.

9. The photovoltaic module according to any one of claims 1 to 5, characterized in that: The edge-sealing tape is arranged in the assembly groove.

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