Photovoltaic module and composite tool

Abstract

The utility model is applicable to the technical field of photovoltaic cells, and particularly relates to a photovoltaic module and a composite tooling, the photovoltaic module comprises a solar cell, a front plate module, a second adhesive film and a back plate, the front plate module comprises a weather-resistant film, a weather-resistant front plate and a first adhesive film which are stacked in sequence from bottom to top, and the back plate comprises a second adhesive film and a second adhesive film which are stacked in sequence from bottom to top. The solar cell is laid on the first adhesive film, the weather-resistant film, the weather-resistant front plate and the first adhesive film are laminated to form a front plate module, the second adhesive film is laid on the solar cell, and the back plate is laid on the second adhesive film. The materials such as the weather-resistant film, the weather-resistant front plate, the first adhesive film and the like are laminated into the integrated front plate module in advance, so that the number of layers of different materials laminated when the photovoltaic module is manufactured is reduced, the thermal shrinkage difference of the different materials during lamination processing is reduced, and the problem that the number of layers of different materials is larger is reduced. Therefore, the possibility of large buckling deformation of the photovoltaic module after lamination processing is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic cells, and particularly relates to a photovoltaic module and a composite tooling. Background Art

[0002] In the actual production process, solar energy is a renewable clean energy source, so it has received extensive attention and use. In the prior art, photovoltaic modules are usually used to absorb solar energy and convert it into electrical energy for people's daily production and living use. Although it can solve the problem of the increasingly shortage of energy to a certain extent, due to the problems of the structure and manufacturing process of the photovoltaic module itself, the conversion efficiency of the photovoltaic module is limited.

[0003] Existing photovoltaic modules usually consist of structures such as solar cells, encapsulant films, front glass panels, and back sheets. When producing lightweight photovoltaic modules, the front glass panel usually uses multiple non-connected polymer layers as a substitute. During production, the solar cells, encapsulant films, multiple polymer layers, back sheets and other structural layers are laminated to form a lightweight photovoltaic module. However, since the multiple polymer layers have multiple different polymer materials, and the thermal shrinkage rates of the materials of the multiple polymer layers are different from those of the structures such as solar cells, encapsulant films, and back sheets, therefore, during lamination, when the number of layers of different materials to be laminated is large, the thermal shrinkage difference between different materials of the photovoltaic module will increase. The photovoltaic module will warp greatly due to the increase in the thermal shrinkage difference between different materials, which will increase the installation difficulty of the photovoltaic module, reduce the mechanical load strength of the photovoltaic module, and is prone to glue overflow, reducing the quality of the photovoltaic module. In addition, the weather-resistant film layer in the multiple polymer front panel is relatively thin, and bubbles and wrinkles are likely to appear after the multiple layers of materials are laminated together, affecting the long-term reliability and appearance of the module. Summary of the Utility Model

[0004] The embodiment of the utility model provides a photovoltaic module, aiming to weaken the warping of the photovoltaic module due to the thermal shrinkage difference between different materials during lamination and improve the production quality of the photovoltaic module.

[0005] The embodiment of the utility model is implemented as follows. A photovoltaic module includes:

[0006] A front panel module, the front panel module includes a weather-resistant film, a weather-resistant front panel, and a first encapsulant film stacked in sequence from bottom to top, and the weather-resistant film, the weather-resistant front panel, and the first encapsulant film are laminated to form the front panel module;

[0007] Solar cells, the solar cells are arranged above the first encapsulant film;

[0008] A second encapsulant film, arranged above the solar cells;

[0009] A back sheet, arranged above the second encapsulant film.

[0010] Furthermore, the front panel module is formed by vacuum lamination pre - compounding or vacuum mold lamination compounding.

[0011] Furthermore, the front panel module, the solar cell, the second adhesive film, and the back plate are laminated in a vacuum environment to form the photovoltaic module.

[0012] Furthermore, the thickness dimension of the weather - resistant film is configured to be between 20μm and 100μm.

[0013] Furthermore, the thickness dimensions of the first adhesive film and the second adhesive film are configured to be between 300μm and 600μm.

[0014] Furthermore, the thickness dimensions of the weather - resistant front plate are all configured to be between 300μm and 700μm.

[0015] Furthermore, the thickness dimension of the back plate is configured to be between 500μm and 1000μm.

[0016] Furthermore, the material of the weather - resistant film is configured to be one or more of ETFE, PVF, and PVDF, the material of the weather - resistant front plate is configured to be one or more of composite polymer fiberglass and dip - coated fiberglass, and the materials of the first adhesive film and the second adhesive film are both configured to be one or more of POE, EVA, EPE, and PVB.

[0017] The embodiment of the present invention also provides a composite tooling, which is applied to manufacture the aforementioned photovoltaic module. The composite tooling is characterized in that it includes a support tooling. Before manufacturing the front panel module, at least one layer of the support tooling is arranged below the weather - resistant film to support the photovoltaic module.

[0018] Furthermore, the composite tooling further includes a light - trapping tooling arranged above the support tooling, so that the front panel module forms a light - trapping structure during the lamination process.

[0019] Furthermore, the sizes of the weather - resistant film, the weather - resistant front plate, and the first adhesive film are all larger than the size of the light - trapping tooling and not larger than the size of the support tooling.

[0020] In the photovoltaic module proposed by the present invention, since the materials such as the weather - resistant film, the weather - resistant front plate, and the first adhesive film are pre - laminated into an integrated front panel module, the number of layers of different materials laminated during the manufacture of the photovoltaic module is reduced, the thermal shrinkage difference during the lamination process of different materials is reduced, the possibility of large warping deformation of the photovoltaic module during the lamination process due to a large number of different materials with multiple layers is reduced, and the generation of bubbles and wrinkles on the front surface of the photovoltaic module can be reduced, improving the reliability and appearance of the photovoltaic module. Description of the Drawings

[0021] Figure 1 is a schematic structural view of a photovoltaic module provided by an embodiment of the present utility model;

[0022] Figure 2 is a schematic structural view of a front plate module provided by an embodiment of the present utility model;

[0023] Figure 3 is a schematic structural view of a photovoltaic module with a composite tooling provided by an embodiment of the present utility model.

[0024] Description of the reference numerals: 100, front plate module; 110, weather-resistant film; 120, weather-resistant front plate; 130, first adhesive film; 200, solar cell; 300, second adhesive film; 400, back plate; 510, support tooling; 520, light-trapping tooling. Detailed Description of the Embodiment

[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated in the description of the direction and positional relationship is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0028] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0029] Existing photovoltaic modules are usually composed of structures such as solar cells, encapsulant films, front glass panels, and backsheets. When producing lightweight photovoltaic modules, the front glass panel usually uses multiple non-connected polymer layers as a substitute. During production, structures such as solar cells, encapsulant films, multiple polymer layers, and backsheets are laminated to form a photovoltaic module. However, since the multiple polymer layers have multiple different polymer materials and different thermal shrinkage rates from the materials of structures such as solar cells, encapsulant films, and backsheets, during lamination, when the number of layers of different materials being laminated is large, the thermal shrinkage difference between different materials of the photovoltaic module will increase. The photovoltaic module will warp significantly due to the increase in the thermal shrinkage difference between different materials, which will increase the installation difficulty of the photovoltaic module, reduce the mechanical load strength of the photovoltaic module, be prone to glue overflow, reduce the quality of the photovoltaic module, and the weather-resistant film layer in the multiple-polymer front panel is relatively thin, and bubbles and wrinkles are likely to appear after the multiple layers of materials are laminated together. The photovoltaic module proposed in this application aims to weaken the warping of the photovoltaic module due to the thermal shrinkage difference between different materials during lamination and improve the production quality of the photovoltaic module.

[0030] Referring to Figures 1 to 3 , this application proposes a photovoltaic module, including a solar cell 200, a front panel module 100, a second encapsulant film 300, and a backsheet 400. The front panel module 100 includes a weather-resistant film 110, a weather-resistant front panel 120, and a first encapsulant film 130 that are stacked in sequence from bottom to top. The solar cell 200 is laid above the first encapsulant film 130. The weather-resistant film 110, the weather-resistant front panel 120, and the first encapsulant film 130 are laminated to form the front panel module 100. The second encapsulant film 300 is laid above the solar cell 200, and the backsheet 400 is laid above the second encapsulant film 300.

[0031] In this way, materials such as the weather-resistant film 110, the weather-resistant front plate 120, and the first adhesive film 130 are pre-laminated into an integrated front plate module 100. Then, materials such as the front plate module 100, the solar cell 200, the second adhesive film 300, and the back plate 400 are laminated again to form a photovoltaic module, reducing the number of layers of different materials during lamination for manufacturing the photovoltaic module, narrowing the thermal shrinkage difference of different materials during lamination processing, thereby reducing the possibility of large warping deformation of the photovoltaic module due to different materials with a large number of layers during lamination processing, effectively improving the problems of glue overflow or component explosion during the framing of the photovoltaic module, and improving the production quality of the photovoltaic module.

[0032] Optionally, in one embodiment, the front plate module 100 is pre-compounded by vacuum lamination or vacuum mold pressing.

[0033] In this way, during the lamination of the front plate module 100, vacuum treatment is carried out, so that the front plate module 100 is always processed in a vacuum environment to discharge the air in the front plate module 100, thereby reducing the bubbles generated between the weather-resistant film 110, the weather-resistant front plate 120, and the first adhesive film 130, enabling the materials to fit tightly together. Preparing the front plate module in advance can reduce the lamination warping and layer lamination warping caused by the thermal shrinkage difference between the materials of the lightweight flexible module.

[0034] Optionally, in another embodiment, the weather-resistant film 110, the weather-resistant front plate 120, and the first adhesive film 130 in the front plate module 100 can be replaced with a combination of multiple layers of the first adhesive film 130 and multiple layers of the weather-resistant front plate 120.

[0035] Optionally, in one embodiment, the front plate module 100, the solar cell 200, the second adhesive film 300, and the back plate 400 are laminated in a vacuum environment to form a photovoltaic module.

[0036] In this way, when manufacturing the photovoltaic module, the front plate module 100 that has been pre-laminated once is subjected to a second lamination process, laminating the front plate module 100 twice, making the front plate module 100 flatter and the materials in the front plate module 100 fit more tightly together, effectively alleviating the problem that the weather-resistant film 110 is prone to wrinkles, and reducing the possibility of the reduction of the light transmittance and waterproof performance of the photovoltaic module caused by the wrinkles of the weather-resistant film 110. Moreover, the photovoltaic module is laminated in a vacuum environment, enabling the air between the materials in the front plate module 100 to be discharged more thoroughly, further reducing the generation of bubbles between the materials in the front plate module 100, and enabling the materials in the front plate module 100 to fit tightly together.

[0037] Optionally, in one embodiment, the thickness dimension of the weather-resistant film 110 is configured to be 20 μm to 100 μm.

[0038] Thus, when the thickness of the weather-resistant film 110 is set below 20 μm, the weather-resistant film 110 may be too thin to reduce its weather resistance and flame retardancy, making the photovoltaic module more vulnerable to ultraviolet rays, moisture erosion and abrasion, shortening the service life of the photovoltaic module. The too-thin weather-resistant film 110 will also wrinkle during lamination processing, reducing the quality of the photovoltaic module. When the thickness of the weather-resistant film 110 is set above 100 μm, the weather-resistant film 110 will reduce the light transmittance due to its excessive thickness, and waste materials, increasing the production cost of the photovoltaic module. Therefore, the thickness of the weather-resistant film 110 is configured between 20 μm and 100 μm, so that the thickness of the weather-resistant film 110 is in a more appropriate range. On the one hand, the photovoltaic module has strong flame retardancy and weather resistance, improving the service life of the photovoltaic module. On the other hand, the material consumption of the weather-resistant film 110 is reduced, and the production cost of the photovoltaic module is lowered.

[0039] Preferably, the thickness dimension of the weather-resistant film 110 can be configured at 50 μm.

[0040] Optionally, in an embodiment, the thickness dimensions of the first adhesive film 130 and the second adhesive film 300 are both configured between 300 μm and 600 μm.

[0041] Thus, the first adhesive film 130 is used to bond the front plate module 100 and the solar cell 200, and the second adhesive film 300 is used to bond the back plate 400 and the solar cell 200. When the thicknesses of the first adhesive film 130 and the second adhesive film 300 are set below 300 μm, the first adhesive film 130 and the second adhesive film 300 may be too thin to cause insufficient bonding force, reducing the bonding strength between the solar cell 200 and the front plate module 100 and the back plate 400, resulting in poor encapsulation effect of the photovoltaic module, thereby reducing the mechanical load stability and sealing performance of the photovoltaic module. When the thicknesses of the first adhesive film 130 and the second adhesive film 300 are set above 600 μm, the first adhesive film 130 and the second adhesive film 300 may cause the displacement of the solar cell 200 due to their excessive thickness, and increase the material cost of the adhesive film. Therefore, the thicknesses of the first adhesive film 130 and the second adhesive film 300 are configured between 300 μm and 600 μm, so that the thicknesses of the first adhesive film 130 and the second adhesive film 300 are in a more appropriate range. On the one hand, the first adhesive film 130 and the second adhesive film 300 have sufficient bonding force, improving the mechanical stability of the photovoltaic module. On the other hand, the use cost of the adhesive film is reduced, and the adhesive film is not likely to cause serious glue overflow after lamination due to its excessive thickness, increasing the cleaning difficulty of the photovoltaic module and other problems.

[0042] Preferably, the thickness dimensions of the first adhesive film and the second adhesive film can be configured at 400 μm.

[0043] Optionally, in one embodiment, the thickness of the weather-resistant front plate 120 is configured to be between 300 μm and 700 μm.

[0044] Thus, if the thickness of the weather-resistant front plate 120 is set less than 300 μm, the weather-resistant front plate 120 may be too thin to provide sufficient mechanical load strength for the photovoltaic module, making the photovoltaic module vulnerable to impact damage. It will also reduce the weather resistance of the weather-resistant front plate 120, making the photovoltaic module more susceptible to erosion, and the weather-resistant front plate 120 will also age faster, shortening the service life of the photovoltaic module. If the thickness of the weather-resistant front plate 120 is set greater than 700 μm, the weather-resistant front plate 120 may be too thick, resulting in an increase in the overall weight of the photovoltaic module, making the photovoltaic module unsuitable for installation on a roof with limited load-bearing capacity. It will also increase the lamination difficulty and the amount of sheet material used, making the production of the front plate module 100 difficult, reducing the production efficiency of the front plate module 100, and increasing the production cost of the front plate module 100. In addition, the too-thick weather-resistant front plate 120 will reduce the heat dissipation performance of the photovoltaic module, making the heat of the photovoltaic module not easily transferred to the outside, reducing the service life of the photovoltaic module. Therefore, configuring the thickness of the weather-resistant front plate 120 between 400 μm and 600 μm makes the thickness of the weather-resistant front plate 120 in a more appropriate range. On the one hand, it enables the photovoltaic module to have sufficient mechanical load strength and strong weather resistance. On the other hand, it reduces the overall weight and production cost of the photovoltaic module, making the photovoltaic module applicable to roofs with different load-bearing capacities.

[0045] Preferably, the thickness of the weather-resistant front plate 120 is configured to be 400 μm.

[0046] Optionally, in one embodiment, the thickness of the back plate 400 is configured to be between 500 μm and 1000 μm.

[0047] Thus, if the thickness of the back plate 400 is set less than 500 μm, the back plate 400 may be too thin, resulting in a reduction in the overall mechanical load strength of the photovoltaic module, as well as a reduction in the wear resistance and moisture barrier performance, reducing the reliability of the module. If the thickness of the back plate 400 is set greater than 1000 μm, the back plate 400 may be too thick, resulting in an increase in the overall weight of the photovoltaic module, making the photovoltaic module unsuitable for installation on a roof with limited load-bearing capacity, and increasing the production cost of the photovoltaic module. In addition, the too-thick back plate 400 will reduce the heat dissipation performance of the photovoltaic module, making the heat of the photovoltaic module not easily transferred to the outside, reducing the service life of the photovoltaic module. Therefore, configuring the thickness of the back plate 400 between 500 μm and 1000 μm makes the thickness of the back plate 400 in a more appropriate range. On the one hand, it enhances the overall mechanical load strength of the photovoltaic module, as well as the wear resistance and moisture barrier performance, improving the reliability of the module. On the other hand, it reduces the overall weight and production cost of the photovoltaic module, making the photovoltaic module applicable to roofs with different load-bearing capacities.

[0048] Preferably, the thickness dimension of the backplane 400 is configured to be 700 μm.

[0049] Optionally, in one embodiment, the material of the weather-resistant film 110 is configured as one or more of ETFE (ethylene-tetrafluoroethylene copolymer), PVF (polyvinyl fluoride), and PVDF (polyvinylidene fluoride), and the material of the weather-resistant front plate 120 is configured as one or more of composite polymer fiberglass and dip-coated fiberglass. The materials of the first adhesive film 130 and the second adhesive film 300 are both configured as one or more of POE (polyolefin elastomer), EVA (ethylene-vinyl acetate copolymer), EPE (ethylene-propylene elastomer), and PVB (polyvinyl butyral).

[0050] Thus, configuring the material of the weather-resistant film 110 as one or more of ETFE (ethylene-tetrafluoroethylene copolymer), PVF (polyvinyl fluoride), and PVDF (polyvinylidene fluoride) enables the weather-resistant film 110 to have strong weather resistance and high light transmittance, improving the ability of the photovoltaic module to adapt to harsh environments such as extreme temperature changes and strong ultraviolet radiation, and also enhancing the flame retardancy and wear resistance of the photovoltaic module; configuring the material of the weather-resistant front plate 120 as one or more of composite polymer fiberglass and dip-coated fiberglass enables the weather-resistant front plate 120 to have high mechanical load strength, strong weather resistance, and good insulation performance, enhancing the ability of the photovoltaic module to adapt to harsh environments such as extreme temperature changes and strong ultraviolet radiation, and improving the overall mechanical load strength of the photovoltaic module; configuring the materials of the first adhesive film 130 and the second adhesive film 300 as one or more of POE (polyolefin elastomer), EVA (ethylene-vinyl acetate copolymer), EPE (ethylene-propylene elastomer), and PVB (polyvinyl butyral) enables the first adhesive film 130 and the second adhesive film 300 to have high light transmittance, strong weather resistance, good adhesion, and tightness, enhancing the mechanical stability between the various structures of the photovoltaic module.

[0051] Refer to Figure 3 , the embodiment of the present invention further provides a composite tooling applied to the production of the aforementioned photovoltaic module. It is characterized in that the composite tooling includes a support tooling 510. Before manufacturing the front plate module 100, at least one layer of support tooling 510 is provided below the weather-resistant film 110 to support the photovoltaic module and form a light-trapping structure on the surface of the module during the lamination process. The support tooling 510 needs to be removed after the module is laminated. The specific structure of the photovoltaic module refers to the above embodiment and will not be elaborated here one by one.

[0052] Thus, during the production of the front panel module 100, it is necessary to transport the stacked weather-resistant film 110, weather-resistant front panel 120, and the first adhesive film 130. Since the materials in the front panel module 100 are relatively soft, they are prone to wrinkling and deformation during transportation and lamination. Therefore, at least one layer of support tooling 510 is installed below the weather-resistant film 110 to support the materials of the front panel module 100, reducing the possibility of wrinkling and deformation of the front panel module 100 during transportation or lamination, and improving the production efficiency and quality of the front panel module 100.

[0053] Optionally, in another embodiment, the composite tooling can be configured as one layer of support tooling 510 or two layers of support tooling 510, not limited to the above-mentioned one layer of support tooling 510.

[0054] Optionally, in one embodiment, the composite tooling further includes a light-trapping tooling 520 disposed above the support tooling 510, so that the front panel module 100 has a light-trapping structure.

[0055] Thus, by setting a layer of light-trapping tooling 520 above the support tooling 510 to form a light-trapping structure for the front panel module, light loss can be reduced, the light absorption rate of the photovoltaic module can be improved, and further the energy conversion efficiency of the photovoltaic module for solar energy can be improved. At the same time, it can also achieve the effect of anti-glare. After the component is laminated, the support tooling 510 and the light-trapping tooling 520 are removed from the photovoltaic module.

[0056] Optionally, in another embodiment, the light-trapping tooling 520 can also not be set, and only one layer of support tooling 510 is set below the weather-resistant film 110 to reduce the production cost of the photovoltaic module.

[0057] Optionally, in another embodiment, when the composite tooling is selected to be two layers, it can be two layers of tooling made of different materials. The support tooling 510 can be selected as glass or specially treated metal plates, and the light-trapping tooling 520 can be selected as a tooling with a light-trapping reverse mold function, such as woven materials, high-temperature resistant glass, metal plates, etc. When the composite tooling is a single layer, the composite tooling can be selected as a profile with high temperature resistance, high flatness, reusable, and one side being a smooth surface and the other side containing a reverse mold structure surface, such as thickened glass, metal plates, and a reverse mold integrated tooling made of materials such as the front panel.

[0058] Optionally, in one embodiment, the sizes of the weather-resistant film 110, weather-resistant front panel 120, and the first adhesive film 130 are all larger than the size of the light-trapping tooling 520 and not larger than the size of the support tooling 510.

[0059] Thus, the size of the supporting tooling 510 is set to be greater than or equal to the sizes of structures such as the light-trapping tooling 520, the weather-resistant film 110, the weather-resistant front plate 120, and the first adhesive film 130 located above, so as to protect the edge of the front plate module 100, reduce the damage to the edge of the front plate module 100, and have a better supporting effect on the front plate module 100, prevent the front plate module from exceeding the supporting tooling and affecting the transfer on the assembly line, and can improve the flatness of the front plate module 100 after the first lamination, thereby improving the production quality of the front plate module 100. It can be understood that after the component lamination, all the composite toolings used in this article need to be removed from the photovoltaic module.

[0060] It can be understood that those skilled in the art can, under the guidance of the above embodiments, combine various implementation manners in the above various embodiments to obtain technical solutions of various implementation manners.

[0061] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic module, characterized in that, Comprising: A front panel module, the front panel module including a weather-resistant film, a weather-resistant front panel, and a first adhesive film stacked as layers from bottom to top, the weather-resistant film, the weather-resistant front panel, and the first adhesive film being laminated to form the front panel module; A solar cell, the solar cell being disposed above the first adhesive film; A second adhesive film, disposed above the solar cell; A back panel, disposed above the second adhesive film.

2. The photovoltaic module according to claim 1, wherein The front panel module is formed by vacuum lamination pre-composite or vacuum mold lamination composite.

3. The photovoltaic module according to claim 2, characterized in that, The front panel module, the solar cell, the second adhesive film, and the back panel are laminated in a vacuum environment to form the photovoltaic module.

4. The photovoltaic module according to claim 1, characterized in that, The thickness dimension of the weather-resistant film is configured to be between 20μm and 100μm.

5. The photovoltaic module according to claim 1, wherein The thickness dimensions of the first adhesive film and the second adhesive film are both configured to be between 300μm and 600μm.

6. The photovoltaic module according to claim 1, wherein, The thickness dimension of the weather-resistant front panel is configured to be between 300μm and 700μm.

7. The photovoltaic module according to claim 1, wherein The thickness dimension of the back panel is configured to be between 500μm and 1000μm.

8. The photovoltaic module according to claim 1, characterized in that, The material of the weather-resistant film is configured to be one or more of ETFE, PVF, and PVDF, the material of the weather-resistant front panel is configured to be one or more of composite polymer fiberglass and dip-coated fiberglass, and the materials of the first adhesive film and the second adhesive film are configured to be one or more of POE, EVA, EPE, and PVB.

9. A composite tooling, which is applied to manufacturing a photovoltaic module as described in any one of claims 1 to 8, and is characterized in that The composite tooling includes a support tooling. Below the front panel module and below the weather-resistant film, at least one layer of the support tooling is provided to support the photovoltaic module.

10. The composite tooling according to claim 9, characterized in that, The composite tooling further includes a light-trapping tooling disposed above the support tooling to enable the front panel module to form a light-trapping structure during the lamination process.

11. The composite tooling according to claim 10, characterized in that, The dimensions of the weather-resistant film, the weather-resistant front panel, and the first adhesive film are all larger than the dimensions of the light-trapping tooling and not larger than the dimensions of the support tooling.

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