Lightweight photovoltaic module

Abstract

The utility model belongs to the technical field of photovoltaic materials, and specifically provides a lightweight photovoltaic assembly. The light photovoltaic module comprises an organic front plate component, a first packaging layer, a first grid enhancement layer, a second packaging layer, a power generation module, a third packaging layer, a second grid enhancement layer, a fourth packaging layer and an organic back plate component which are sequentially stacked from top to bottom. The photovoltaic module is light in weight, the glass fiber grid material is added inside the photovoltaic module, rigidity, hardness and impact resistance of the photovoltaic module are improved, the photovoltaic module has good high-temperature stability, and the problems of deformation, bending and the like of the photovoltaic module caused by shrinkage, warping, creep deformation and the like of the organic material after being heated are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic materials and relates to a lightweight photovoltaic component. Background Art

[0002] Industrial and commercial owners have always faced two major challenges: controlling operating costs and achieving corporate social responsibility goals. Electricity costs account for a large proportion of operating expenses, and cost competition is fierce. Installing photovoltaic power generation systems on industrial and commercial roofs can reduce corporate energy consumption while utilizing idle resources, and also bring economic benefits to the company.

[0003] Common industrial and commercial roofs are mainly made of cement, glass, color steel tiles, arched steel structures and other materials. The national standard load-bearing capacity of non-walkable roofs is ≥50kg / m 2 , some old building roof load-bearing ≤50kg / m 2 After the photovoltaic system is installed, about 30 to 35 kg / m 2 , and the load-bearing margin left for the photovoltaic system is ≤15kg / m 2 Therefore, in order to meet the needs of more industrial and commercial rooftop installations, component lightweighting is the main direction of industrial and commercial rooftop photovoltaic development.

[0004] Traditional photovoltaic modules are generally made of glass, which is heavy and not suitable for installation on roofs. Therefore, they can be made of lightweight materials to reduce the weight of photovoltaic modules. However, photovoltaic modules made of existing lightweight materials have low structural strength and poor impact resistance. In severe hail weather, they are easily impacted by hail, which affects the power generation effect of photovoltaic modules. In addition, they have poor structural stability and are prone to deformation under high temperature conditions. Therefore, it is very important to provide a photovoltaic module with high structural strength and stability. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a lightweight photovoltaic module, which improves the high-temperature stability of the organic front panel component, reduces the thermal shrinkage effect of the organic front panel component, increases the impact resistance of the photovoltaic module, and ensures overall flatness.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a lightweight photovoltaic component, which comprises an organic front panel component, a first packaging layer, a first grid reinforcement layer, a second packaging layer, a power generation module, a third packaging layer, a second grid reinforcement layer, a fourth packaging layer and an organic back panel component which are stacked in sequence from top to bottom.

[0008] The lightweight photovoltaic module of the utility model utilizes an organic front panel component instead of traditional glass to reduce the weight of the photovoltaic module, and adds a grid-like reinforcing material inside to enhance the rigidity and hardness of the photovoltaic module and improve the dimensional stability of the organic module under high temperature conditions, thereby reducing the risk of deformation or bending of the photovoltaic module due to shrinkage, warping, creep, etc. of the organic material after being heated, and maintaining the overall flatness of the module. In addition, it is beneficial to increase the impact resistance of the photovoltaic module and reduce the impact of hail on the power generation module. It has strong applicability and can be applied to rooftop photovoltaic systems.

[0009] As a preferred technical solution of the utility model, the organic front plate component includes a first barrier layer, a first water-blocking layer and a first adhesive layer stacked in sequence, and the first adhesive layer is connected to the first encapsulation layer.

[0010] As a preferred technical solution of the utility model, the organic backplane component includes a second barrier layer, a second water-blocking layer and a second adhesive layer stacked in sequence, and the second adhesive layer is connected to the fourth encapsulation layer.

[0011] As a preferred technical solution of the present invention, the first barrier layer and the second barrier layer are independently UV barrier coatings or UV barrier films.

[0012] The first water-blocking layer and the second water-blocking layer are independently resin material layers.

[0013] The first adhesive layer and the second adhesive layer are independently organic film layers.

[0014] In the utility model, the first barrier layer and the second barrier layer are made of UV-resistant materials, and have a coating structure or a thin film structure, preferably a UV-blocking coating, which can avoid UV damage. The first water-blocking layer and the second water-blocking layer are made of resin materials, which play a supporting and water-blocking role to prevent the photovoltaic module from being damaged by external force or water vapor. The first adhesive layer and the second adhesive layer are made of film materials, which are used to bond the composite first encapsulation layer and the fourth encapsulation layer respectively.

[0015] As a preferred technical solution of the utility model, the first mesh reinforcement layer and the second mesh reinforcement layer independently include glass fiber mesh layers, and the surface of the glass fiber mesh layer is coated with a polymer anti-emulsion coating.

[0016] The first grid reinforcement layer and the second grid reinforcement layer in the utility model are made of glass fiber woven fabric as the base material and are made of a polymer anti-emulsion soaked coating. The color is transparent or white, and has the advantages of good chemical stability, corrosion resistance, high strength, high modulus, light weight, good dimensional stability, good toughness, etc., which reduce the impact of hail impact on the power generation module and alleviate the thermal shrinkage of the organic front plate component, maintain the overall flatness of the photovoltaic module, are not easy to deform, and improve the impact resistance.

[0017] As a preferred technical solution of the present invention, the single root diameters of the first mesh reinforcement layer and the second mesh reinforcement layer are independently 0.5 to 3 mm, for example, they can be 0.5 mm, 0.6 mm, 0.8 mm, 1 mm, 1.2 mm, 1.5 mm, 1.6 mm, 2 mm, 2.2 mm, 2.5 mm, 2.6 mm, 2.8 mm or 3 mm, but are not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0018] The thickness of each single root of the first mesh reinforcement layer and the second mesh reinforcement layer is independently 0.1 to 1 mm, for example, it can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1 mm, but is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0019] As a preferred technical solution of the present invention, the apertures of the first mesh reinforcement layer and the second mesh reinforcement layer are independently 2 to 20 mm, for example, 2 mm, 3 mm, 4 mm, 5 mm, 8 mm, 10 mm, 12 mm, 14 mm, 15 mm, 16 mm, 18 mm or 20 mm, but are not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0020] That is, the single diameter, single thickness, and aperture of the first mesh reinforcement layer and the second mesh reinforcement layer in the present invention may be the same or different.

[0021] As a preferred technical solution of the utility model, the first encapsulation layer, the second encapsulation layer, the third encapsulation layer and the fourth encapsulation layer independently include any one of an EVA (ethylene-vinyl acetate copolymer, Ethylene Vinyl Acetate Copolymer) film layer, a POE (polyether polyols) film layer, an EPE (polyethylene foam, Pearlcotton) film layer or a PVB (polyvinyl butyral resin) film layer.

[0022] In the utility model, the first encapsulation layer, the second encapsulation layer, the third encapsulation layer and the fourth encapsulation layer are all transparent structures, which are used to bond materials such as power generation modules, grid reinforcement layers or organic backplane components, are integrated through high-temperature lamination and bonding, and can encapsulate and protect the power generation modules for long-term power generation.

[0023] As a preferred technical solution of the utility model, the power generation module is composed of a plurality of battery cells, and the plurality of battery cells are connected in series and / or in parallel through copper-based interconnecting strips or conductive adhesives.

[0024] As a preferred technical solution of the utility model, the lightweight photovoltaic assembly further includes a junction box, the junction box is connected to the power generation module, and the junction box has a built-in diode assembly.

[0025] The battery cell described in the utility model is a crystalline silicon solar cell, which is composed of a copper-based interconnection bar or a conductive adhesive to form a battery string of a series-parallel structure, and converts sunlight into electrical energy and outputs it through a junction box. The junction box can protect the entire power generation module and act as a current transfer station. When a photovoltaic module is short-circuited, the junction box can automatically disconnect the short-circuited battery string to prevent the entire module from burning out.

[0026] In order to help those skilled in the art better understand the overall technical solution and working process of the utility model, the utility model exemplarily provides the following specific manufacturing method of lightweight photovoltaic modules:

[0027] Step 1: The battery cells are welded in series into a battery string through interconnection strips or conductive glue. The specific number of batteries is adjusted according to the layout requirements;

[0028] Step 2: Laying a front plate component and a first packaging layer;

[0029] Step 3: Using glass fiber woven fabric as a substrate, soaking the coating with a polymer anti-emulsion to form a first grid reinforcement layer, and applying it on the surface of the first packaging layer away from the organic front plate component;

[0030] Step 4: Laying a second encapsulation layer on a surface of the first mesh reinforcement layer away from the first encapsulation layer;

[0031] Step 5: Arrange the battery strings welded in step 1 in the module. The positive and negative poles of the battery strings are designed in parallel or series, which can be adjusted according to the layout requirements.

[0032] Step 6: The battery strings are connected by busbar welding, and busbar lead wires are reserved to form a power generation module;

[0033] Step 7: Laying a third packaging layer on the power generation module;

[0034] Step 8: Using glass fiber woven fabric as a substrate, a second grid reinforcement layer is prepared by soaking and coating with a polymer anti-emulsion, and the second grid reinforcement layer is applied on a surface of the third packaging layer away from the power generation module;

[0035] Step 9: Laying a fourth encapsulation layer on a surface of the second mesh reinforcement layer away from the third encapsulation layer;

[0036] Step 10: Laying a back plate component on the fourth encapsulation layer to obtain a laminated photovoltaic module;

[0037] Step 11: laminating the stacked photovoltaic modules in step 10;

[0038] Step 12: Then, the edges are cut, the frame is installed, and the junction box is installed to obtain a lightweight photovoltaic module.

[0039] The numerical range described in the present invention not only includes the point values ​​listed above, but also includes any point values ​​between the above numerical ranges that are not listed. Due to space limitations and for the sake of simplicity, the present invention no longer exhaustively lists the specific point values ​​included in the range.

[0040] Compared with the prior art, the beneficial effects of the utility model are:

[0041] The utility model provides a lightweight photovoltaic module, which utilizes an organic front panel component instead of traditional glass to reduce the weight of the photovoltaic module, and adds a grid-shaped reinforcement material inside to enhance the rigidity and hardness of the photovoltaic module, and improve the dimensional stability of the organic module under high temperature conditions, thereby reducing the risk of deformation or bending of the photovoltaic module due to shrinkage, warping, creep, etc. of the organic material after being heated, maintaining the overall flatness of the module, and also helping to increase the impact resistance of the photovoltaic module and reduce the impact of hail on the power generation module. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of the structure of a lightweight photovoltaic assembly provided for a specific embodiment of the utility model;

[0043] Figure 2 A schematic diagram of the structure of a first mesh reinforcement layer and a second mesh reinforcement layer provided in a specific embodiment of the utility model;

[0044] Figure 3 A schematic structural diagram of a power generation module provided in a specific embodiment of the utility model with a junction box.

[0045] Among them, 1-organic front panel component; 2-first packaging layer; 3-first grid reinforcement layer; 4-second packaging layer; 5-power generation module; 6-third packaging layer; 7-second grid reinforcement layer; 8-fourth packaging layer; 9-organic back panel component; 10-junction box. DETAILED DESCRIPTION

[0046] It should be understood that, in the description of the present utility model, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0047] It should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0048] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0049] In a specific embodiment, the utility model provides a lightweight photovoltaic module, such as Figure 1 As shown, it includes an organic front panel component 1, a first encapsulation layer 2, a first grid reinforcement layer 3, a second encapsulation layer 4, a power generation module 5, a third encapsulation layer 6, a second grid reinforcement layer 7, a fourth encapsulation layer 8 and an organic back panel component 9 which are stacked in sequence from top to bottom.

[0050] The utility model is further described in detail below. However, the following examples are only simple examples of the utility model and do not represent or limit the scope of protection of the utility model. The scope of protection of the utility model shall be subject to the claims.

[0051] The organic front panel component 1 includes a first barrier layer, a first water-blocking layer and a first adhesive layer which are stacked in sequence, and the first adhesive layer is connected to the first encapsulation layer 2. The first barrier layer is made of UV-resistant material, and has a coating structure or a film structure, preferably a UV-blocking coating, which can avoid UV damage; the first water-blocking layer is made of resin material, which plays a supporting and water-blocking role, and prevents the photovoltaic module from being damaged by external force or water vapor. The resin material includes but is not limited to any one of PET (polyethylene glycol terephthalate), PETG (polyethylene terephthalate-1,4-cyclohexanedimeth yleneterephthalate), PC (polycarbonate), PCTG (polyethylene terephthalate-1,4-cyclohexanedimeth yleneterephthalate), preferably PET. The first adhesive layer adopts a film material for bonding the composite first packaging layer 2, and the film material includes but is not limited to EVA, POE, EPE, PVB, preferably EVA. The above materials are all commercially available materials well known to those skilled in the art.

[0052] The first encapsulation layer 2 is any one of an EVA film layer, a POE film layer, an EPE film layer or a PVB film layer, and the film is a transparent structure with a light transmittance of ≥90%, and is used to bond the first grid reinforcement layer 3 and is integrated through high-temperature lamination bonding.

[0053] The first mesh reinforcement layer 3 includes: Figure 2 The glass fiber mesh layer shown, the surface of the glass fiber mesh layer is coated with a polymer anti-emulsion coating. It is made of glass fiber woven fabric as the base material, soaked in a polymer anti-emulsion coating, and has a transparent or white color. The single diameter of the first mesh reinforcement layer 3 is 0.5-3mm, the single thickness is 0.1-1mm, and the aperture of the first mesh reinforcement layer 3 is 2-20mm. It has the advantages of good chemical stability, corrosion resistance, high strength, high modulus, light weight, good dimensional stability, good toughness, etc., reduces the impact of hail impact on the power generation module 5, and alleviates the thermal shrinkage of the organic front plate component 1, maintains the overall flatness of the photovoltaic module, is not easy to deform, and improves the impact resistance. The mesh shape of the glass fiber mesh layer includes but is not limited to rectangular, circular or prismatic, etc.

[0054] The second encapsulation layer 4 is any one of an EVA film layer, a POE film layer, an EPE film layer or a PVB film layer. The film is a transparent structure with a light transmittance of ≥90%. It is used to bond the power generation module 5 and is integrated through high-temperature lamination and bonding. It can encapsulate and protect the power generation module 5 for long-term power generation.

[0055] like Figure 3 As shown, the power generation module 5 is composed of a plurality of crystalline silicon solar cells, which are connected in series and / or in parallel via copper-based interconnecting strips or conductive adhesives, and convert sunlight into electrical energy and output it through a junction box 10.

[0056] The third encapsulation layer 6 is any one of an EVA film layer, a POE film layer, an EPE film layer or a PVB film layer. The film is a transparent structure with a light transmittance of ≥90%. It is used to bond the second grid reinforcement layer 7 and is integrated through high-temperature lamination and bonding. It can encapsulate and protect the power generation module 5 for long-term power generation.

[0057] The second mesh reinforcement layer 7 includes: Figure 2 The glass fiber mesh layer shown, the surface of the glass fiber mesh layer is coated with a polymer anti-emulsion coating. It is made of glass fiber woven fabric as the base material, soaked in a polymer anti-emulsion coating, and has a transparent or white color. The single diameter of the second mesh reinforcement layer 7 is 0.5-3mm, the single thickness is 0.1-1mm, and the aperture of the second mesh reinforcement layer 7 is 2-20mm. It has the advantages of good chemical stability, corrosion resistance, high strength, high modulus, light weight, good dimensional stability, good toughness, etc., reduces the impact of hail impact on the power generation module 5, and alleviates the thermal shrinkage of the organic front plate component 1, maintains the overall flatness of the photovoltaic module, is not easy to deform, and improves the impact resistance. The mesh shape of the glass fiber mesh layer includes but is not limited to rectangular, circular or prismatic, etc.

[0058] The fourth encapsulation layer 8 is any one of an EVA film layer, a POE film layer, an EPE film layer or a PVB film layer. The film is a transparent structure with a light transmittance of ≥90%. It is used to bond the organic backplane component 9 and is integrated through high-temperature lamination and bonding. It can encapsulate and protect the power generation module 5 for long-term power generation.

[0059] The organic backplane component 9 includes a second barrier layer, a second water-blocking layer and a second adhesive layer stacked in sequence, and the second adhesive layer is connected to the fourth encapsulation layer 8. The second barrier layer is made of UV-resistant material, has a coating structure or a thin film structure, preferably a UV-blocking coating, which can avoid UV damage; the second water-blocking layer is made of resin material, which plays a supporting and water-blocking role to prevent the photovoltaic module from being damaged by external force or water vapor. Resin materials include but are not limited to PET (polyethylene terephthalate), PETG (polyethylene terephthalate-1,4-cyclohexanedimethanol ester), PC (polycarbonate), PCTG (polyethylene terephthalate-1,4-cyclohexanedimethanol ester and polycarbonate composition) Any one, preferably PET. The second adhesive layer is made of film material for bonding the composite fourth encapsulation layer 8, and the film material includes but is not limited to EVA, POE, EPE, PVB, preferably EVA. The above materials are all commercially available materials well known to those skilled in the art.

[0060] The lightweight photovoltaic assembly also includes a junction box 10, which is connected to the power generation module 5. The junction box 10 has a built-in diode assembly. The junction box 10 can protect the entire power generation module 5 and act as a current transfer station. When a short circuit occurs in the photovoltaic assembly, the junction box 10 can automatically disconnect the short-circuited battery string to prevent the entire assembly from burning out.

[0061] The utility model also provides a method for manufacturing a lightweight photovoltaic module, which specifically includes the following steps:

[0062] Step 1: The battery cells are welded in series into a battery string through interconnection strips or conductive glue. The specific number of batteries is adjusted according to the layout requirements;

[0063] Step 2: Laying a front plate component 1 and a first packaging layer 2;

[0064] Step 3: using glass fiber woven fabric as a substrate, soaking and coating with a polymer anti-emulsion to form a first grid reinforcement layer 3, and applying it on a side surface of the first encapsulation layer 2 away from the organic front panel component 1;

[0065] Step 4: Laying the second encapsulation layer 4 on the surface of the first mesh reinforcement layer 3 away from the first encapsulation layer 2;

[0066] Step 5: Arrange the battery strings welded in step 1 in the module. The positive and negative poles of the battery strings are designed in parallel or series, which can be adjusted according to the layout requirements.

[0067] Step 6: The battery strings are connected by welding with bus bars, and bus bar lead wires are reserved to form a power generation module 5;

[0068] Step 7: Laying a third encapsulation layer 6 on the power generation module 5;

[0069] Step 8: Using glass fiber woven fabric as a substrate, a second grid reinforcement layer 7 is prepared by soaking and coating with a polymer anti-emulsion, and applied on a side of the third encapsulation layer 6 away from the power generation module 5;

[0070] Step 9: Laying a fourth encapsulation layer 8 on a surface of the second mesh reinforcement layer 7 away from the third encapsulation layer 6;

[0071] Step 10: Laying a back plate component 9 on the fourth encapsulation layer 8 to obtain a laminated photovoltaic module;

[0072] Step 11: laminating the stacked photovoltaic modules in step 10;

[0073] Step 12: Then, the edges are cut, the frame is installed, and the junction box 10 is installed to obtain a lightweight photovoltaic module.

[0074] Example 1

[0075] The present embodiment provides a lightweight photovoltaic module, including an organic front panel component 1, a first encapsulation layer 2, a first grid reinforcement layer 3, a second encapsulation layer 4, a power generation module 5, a third encapsulation layer 6, a second grid reinforcement layer 7, a fourth encapsulation layer 8 and an organic back panel component 9 stacked in sequence from top to bottom. The organic front panel component 1 includes a first barrier layer, a first water barrier layer and a first adhesive layer stacked in sequence, the first barrier layer is a UV barrier coating, the first water barrier layer is PET, the first adhesive layer is an EVA film, and is connected to the first encapsulation layer 2. The first encapsulation layer 2, the second encapsulation layer 4, the third encapsulation layer 6 and the fourth encapsulation layer 8 are all EVA film layers. The first grid reinforcement layer 3 and the second grid reinforcement layer 7 independently include glass fiber grid layers, and the surface is coated with a polymer anti-emulsion coating. The single diameter of the first grid reinforcement layer 3 is 1.5 mm, the single thickness is 0.5 mm, the mesh is square, and the aperture is 10 mm. The organic backplane component 9 includes a second barrier layer, a second water barrier layer and a second adhesive layer stacked in sequence, the second barrier layer is a UV barrier coating, the second water barrier layer is PET, the second adhesive layer is an EVA film, and is connected to the fourth encapsulation layer 8 .

[0076] Example 2

[0077] The present embodiment provides a lightweight photovoltaic module, including an organic front panel component 1, a first encapsulation layer 2, a first grid reinforcement layer 3, a second encapsulation layer 4, a power generation module 5, a third encapsulation layer 6, a second grid reinforcement layer 7, a fourth encapsulation layer 8 and an organic back panel component 9 stacked in sequence from top to bottom. The organic front panel component 1 includes a first barrier layer, a first water barrier layer and a first adhesive layer stacked in sequence, the first barrier layer is a UV barrier coating, the first water barrier layer is PET, the first adhesive layer is an EVA film, and is connected to the first encapsulation layer 2. The first encapsulation layer 2, the second encapsulation layer 4, the third encapsulation layer 6 and the fourth encapsulation layer 8 are all EVA film layers. The first grid reinforcement layer 3 and the second grid reinforcement layer 7 independently include glass fiber grid layers, and the surface is coated with a polymer anti-emulsion coating. The single diameter of the first grid reinforcement layer 3 is 0.5 mm, the single thickness is 0.1 mm, the mesh is square, and the aperture is 2 mm. The organic backplane component 9 includes a second barrier layer, a second water barrier layer and a second adhesive layer stacked in sequence, the second barrier layer is a UV barrier coating, the second water barrier layer is PET, the second adhesive layer is an EVA film, and is connected to the fourth encapsulation layer 8 .

[0078] Example 3

[0079] The present embodiment provides a lightweight photovoltaic module, including an organic front panel component 1, a first encapsulation layer 2, a first grid reinforcement layer 3, a second encapsulation layer 4, a power generation module 5, a third encapsulation layer 6, a second grid reinforcement layer 7, a fourth encapsulation layer 8 and an organic back panel component 9 stacked in sequence from top to bottom. The organic front panel component 1 includes a first barrier layer, a first water barrier layer and a first adhesive layer stacked in sequence, the first barrier layer is a UV barrier coating, the first water barrier layer is PET, the first adhesive layer is an EVA film, and is connected to the first encapsulation layer 2. The first encapsulation layer 2, the second encapsulation layer 4, the third encapsulation layer 6 and the fourth encapsulation layer 8 are all EVA film layers. The first grid reinforcement layer 3 and the second grid reinforcement layer 7 independently include glass fiber grid layers, and the surface is coated with a polymer anti-emulsion coating. The single diameter of the first grid reinforcement layer 3 is 3 mm, the single thickness is 1 mm, the mesh is square, and the aperture is 20 mm. The organic backplane component 9 includes a second barrier layer, a second water barrier layer and a second adhesive layer stacked in sequence, the second barrier layer is a UV barrier coating, the second water barrier layer is PET, the second adhesive layer is an EVA film, and is connected to the fourth encapsulation layer 8 .

[0080] The utility model utilizes organic front panel component materials to replace glass, thereby reducing the weight of photovoltaic modules, and adds glass fiber mesh materials inside thereof, thereby enhancing the impact resistance of photovoltaic modules and improving the high-temperature stability of the organic front panel components, thereby avoiding deformation or bending of photovoltaic modules caused by shrinkage, warping, creep, etc. of organic materials after being heated, and also preventing the occurrence of stratification problems of photovoltaic modules.

[0081] The applicant declares that the above is only a specific implementation method of the present utility model, but the protection scope of the present utility model is not limited thereto. The technicians in the relevant technical field should understand that any changes or substitutions that can be easily thought of by the technicians in the relevant technical field within the technical scope disclosed in the present utility model fall within the protection scope and disclosure scope of the present utility model.

Claims

1. A lightweight photovoltaic module, characterized in that: The lightweight photovoltaic assembly comprises an organic front panel component, a first encapsulation layer, a first grid reinforcement layer, a second encapsulation layer, a power generation module, a third encapsulation layer, a second grid reinforcement layer, a fourth encapsulation layer and an organic back panel component which are stacked in sequence from top to bottom.

2. The lightweight photovoltaic module according to claim 1, characterized in that: The organic front plate component includes a first barrier layer, a first water-blocking layer and a first adhesive layer which are stacked in sequence, and the first adhesive layer is connected to the first encapsulation layer.

3. The lightweight photovoltaic module according to claim 1, characterized in that: The organic backplane component comprises a second barrier layer, a second water-blocking layer and a second adhesive layer which are stacked in sequence, and the second adhesive layer is connected to the fourth encapsulation layer.

4. The lightweight photovoltaic module according to claim 2, characterized in that: The first barrier layer and the second barrier layer are independently a UV blocking coating or a UV blocking film; The first water-blocking layer and the second water-blocking layer are independently resin material layers; The first adhesive layer and the second adhesive layer are independently organic film layers.

5. The lightweight photovoltaic module according to claim 1, characterized in that: The first mesh reinforcement layer and the second mesh reinforcement layer independently include glass fiber mesh layers, and the surface of the glass fiber mesh layer is coated with a polymer anti-emulsion coating.

6. The lightweight photovoltaic module according to claim 5, characterized in that: The diameter of each of the first mesh reinforcement layer and the second mesh reinforcement layer is independently 0.5 to 3 mm; The thickness of each of the first mesh reinforcement layer and the second mesh reinforcement layer is independently 0.1-1 mm.

7. The lightweight photovoltaic module according to claim 5, characterized in that: The apertures of the first mesh reinforcement layer and the second mesh reinforcement layer are independently 2 to 20 mm.

8. The lightweight photovoltaic module according to claim 1, characterized in that: The first encapsulation layer, the second encapsulation layer, the third encapsulation layer and the fourth encapsulation layer independently include any one of an EVA film layer, a POE film layer, an EPE film layer or a PVB film layer.

9. The lightweight photovoltaic module according to claim 1, characterized in that: The power generation module is composed of a plurality of battery cells, and the plurality of battery cells are connected in series and / or in parallel via copper-based interconnecting strips or conductive adhesives.

10. The lightweight photovoltaic module according to claim 9, characterized in that: The lightweight photovoltaic assembly also includes a junction box, which is connected to the power generation module and has a built-in diode assembly.

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