CN219085987U - Light photovoltaic module with double-sided power generation - Google Patents
Light photovoltaic module with double-sided power generation Download PDFInfo
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- CN219085987U CN219085987U CN202222775050.XU CN202222775050U CN219085987U CN 219085987 U CN219085987 U CN 219085987U CN 202222775050 U CN202222775050 U CN 202222775050U CN 219085987 U CN219085987 U CN 219085987U
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Abstract
The utility model provides a light photovoltaic module with double-sided power generation, which comprises a multilayer structure and a junction box; the multilayer structure comprises a front plate layer, a first adhesive film layer, a battery layer, a second adhesive film layer and a back plate layer which are sequentially arranged in a covering layer laminating manner from top to bottom; the junction box is arranged on the outer side of the multilayer structure. The light photovoltaic module for double-sided power generation has the advantages of simple structure, easy preparation and double-sided power generation and light weight.
Description
Technical Field
The utility model belongs to the field of photovoltaic materials, and particularly relates to a light photovoltaic module with double-sided power generation.
Background
The existing light assembly product mainly considers that the application scene is a light roof, and the installation mode is the installation of being applied to the surface of the roof, so that the existing light assembly is generally an assembly for single-sided power generation.
The existing photovoltaic module product with double-sided power generation mainly comprises a double-glass module which uses glass materials as a front plate and a back plate, wherein the weight of the glass module is 10-12kg/m 2 The application field with lower bearing load requirement can not be met, and meanwhile, the problem of the weight of the double-glass assembly also brings inconvenience to installation and construction.
How to find a photovoltaic module capable of generating electricity from two sides and being light is a technical problem to be solved. There is no report about this in the prior art.
Disclosure of Invention
The utility model aims to provide a light photovoltaic module with double-sided power generation, which has a simple structure and has the advantages of double-sided power generation and light weight.
In order to achieve the purpose of the utility model, the following technical scheme is adopted:
a light photovoltaic module with double-sided power generation comprises a multilayer structure and a junction box;
the multilayer structure comprises a front plate layer, a first adhesive film layer, a battery layer, a second adhesive film layer and a back plate layer which are sequentially arranged in a covering layer laminating manner from top to bottom;
the junction box is arranged on the outer side of the multilayer structure.
In the light photovoltaic module for double-sided power generation, preferably, the front plate layer comprises a support material layer, and a fluorine-containing weather-resistant layer and an inner bonding layer are respectively arranged on two sides of the support material layer; the front plate layer is connected with the first adhesive film layer through the inner adhesive layer.
In the light photovoltaic module for double-sided power generation, preferably, the support material layer is a PC material layer, and the PC material layer is any one or a combination of a plurality of PC resin material layers, PC/PET alloy material layers, PC/PBT alloy material layers and PC glass fiber toughening material layers; and/or
The thickness of the support material layer is 0.25-2.0mm; and/or
The thickness of the front plate layer (1) is 0.3-2.2mm.
The light photovoltaic module for double-sided power generation is characterized in that the fluorine-containing weather-resistant layer is a fluorine-containing coating or a fluorine-containing film layer;
the fluorine-containing film layer comprises any one or a combination of a plurality of ethylene-tetrafluoroethylene copolymer film layers, a polyvinyl fluoride film layer and a polyvinylidene fluoride film layer.
In the light photovoltaic module for double-sided power generation, preferably, the fluorine-containing weather-resistant layer is a fluorine-containing film layer, and an adhesive layer is further arranged between the fluorine-containing weather-resistant layer and the support material layer.
The light photovoltaic module for double-sided power generation of the utility model preferably has the inner bonding layer as a coating or film layer;
the coating comprises any one or more of an acrylic coating, a fluorocarbon resin coating and a polyurethane coating;
the film layer comprises a polyolefin film layer and/or a fluorine-containing film layer; the fluorine-containing film layer comprises any one or a combination of a plurality of ethylene-tetrafluoroethylene copolymer film layers, a polyvinyl fluoride film layer and a polyvinylidene fluoride film layer.
In the light photovoltaic module for double-sided power generation, preferably, the inner bonding layer is a film layer, and an adhesive layer is further arranged between the inner bonding layer and the support material layer.
In the light photovoltaic module for double-sided power generation, preferably, the first adhesive film layer and/or the second adhesive film layer is/are packaging adhesive film layers for the photovoltaic module, and the packaging adhesive film layers comprise any one or a combination of a plurality of POE adhesive film layers, EVA adhesive film layers and PVB adhesive film layers.
The light photovoltaic module for double-sided power generation of the utility model preferably has the structure that the battery layer is a single-crystal battery piece layer or a multi-crystal battery piece layer; and/or
The battery arrangement density of the battery layer is 30-90% of the whole packaging area.
The light photovoltaic module for double-sided power generation of the present utility model preferably, the back sheet layer comprises any one or a combination of a plurality of TPC sheet layers, KPC sheet layers, TPO sheet layers, KPO sheet layers, CPC sheet layers, and reinforced PET sheet layers; and/or
The thickness of the back plate layer is 0.2-0.7mm.
The utility model has the beneficial effects that:
the light photovoltaic module for double-sided power generation has the advantages of simple structure, easy preparation and double-sided power generation and light weight; the front plate layer 1 and the back plate layer 5 are light polymer material layers, so that the problems that the existing double-glass double-sided power generation assembly is overweight in weight, high in load requirement and incapable of meeting curved surface installation can be effectively solved; compared with a single-sided light assembly, the double-sided power generation light photovoltaic assembly can further improve the power generation efficiency, and has better economic benefit; the battery arrangement density of the battery layer 3 can be adjusted according to the light transmission requirement, and the light transmission requirement of scenes such as an agricultural greenhouse, a sunlight room and the like can be met through the adjustment of the battery arrangement density of the battery layer.
Drawings
FIG. 1 is a schematic view of the structure of a double-sided power generating lightweight photovoltaic module of this utility model in one embodiment;
fig. 2 is a schematic structural view of a front sheet layer in a double-sided power generating lightweight photovoltaic module according to the present utility model in one embodiment.
Detailed Description
The technical scheme and effects of the present utility model are further described below with reference to specific embodiments. The following embodiments/examples are only for illustrating the contents of the present utility model, and the present utility model is not limited to the following embodiments or examples. Simple modifications of the utility model using the inventive concept are within the scope of the utility model as claimed.
A lightweight photovoltaic module for double-sided power generation, as shown in fig. 1 and 2, includes a multilayer structure and a junction box 6;
the multilayer structure comprises a front plate layer 1, a first adhesive film layer 2, a battery layer 3, a second adhesive film layer 4 and a back plate layer 5 which are sequentially arranged in a lamination mode from top to bottom;
the junction box 6 is disposed outside the multilayer structure.
The skilled person will understand that the layered structure is formed by laminating the aforementioned 5 structural layers together at high temperature.
The light photovoltaic module for double-sided power generation has the advantages of simple structure, easy preparation and double-sided power generation and light weight.
In one embodiment, the junction box 6 is provided separately from the back plane layer 5.
In one embodiment, the front plate layer 1 comprises a support material layer 12, and the two sides of the support material layer 12 are respectively provided with a fluorine-containing weather-resistant layer 11 and an inner adhesive layer 13; the front plate layer 1 is connected with the first adhesive film layer 2 through the inner adhesive layer 13.
In the present utility model, in the fluorine-containing weather-resistant layer 11, due to the characteristics of fluorine atoms, the weather-resistant capability of the front plate layer 1 can be effectively improved; the inner adhesive layer 13 can ensure good adhesion between the front plate layer 1 and the first adhesive film layer 2; therefore, the fluorine-containing weather-resistant layer 11 and the inner adhesive layer 13 are provided on both sides of the support material layer 12, respectively, so that the overall performance of the front sheet layer 1 can be improved.
In one embodiment, the support material layer 12 is a PC material layer that is a combination of any one or more of a PC resin material layer, a PC/PET alloy material layer, a PC/PBT alloy material layer, and a PC glass fiber toughening material layer.
In one embodiment, the thickness of the layer of support material 12 is 0.25-2.0mm, such as 0.5mm, 0.75mm, 1.0mm, 1.25mm, 1.5mm, and 1.75mm.
In one embodiment, the thickness of the front sheet layer 1 is 0.3-2.2mm, such as 0.5mm, 0.7mm, 1.0mm, 1.3mm, 1.5mm, 1.7mm and 2.0mm.
Those skilled in the art will appreciate that the PC material (polycarbonate) has the light impact resistance property, and that the PC material layer is used as the support material layer 12, and has the excellent properties of high light transmittance, high weather resistance and impact resistance, so that the light photovoltaic module can be improved in the properties of high light transmittance, high weather resistance and impact resistance.
In one embodiment, the fluorine-containing weathering layer 11 is a fluorine-containing coating (such as a fluorocarbon resin coating) or a fluorine-containing thin film layer;
the fluorine-containing film layer includes any one or a combination of a plurality of ethylene-tetrafluoroethylene copolymer film layers, polyvinyl fluoride (PVF) film layers and polyvinylidene fluoride (PVDF) film layers.
In one embodiment, the fluorine-containing weather-proof layer 11 is a fluorine-containing film layer, and an adhesive layer is further disposed between the fluorine-containing weather-proof layer 11 and the support material layer 12, so as to ensure good adhesion between the two layers.
In one embodiment, the inner adhesive layer 13 is a coating or film layer;
the coating comprises any one or more of an acrylic coating (such as a fluoroacrylic coating), a fluorocarbon resin coating, and a polyurethane coating;
the film layer comprises a polyolefin film layer and/or a fluorine-containing film layer; the fluorine-containing film layer includes any one or a combination of a plurality of ethylene-tetrafluoroethylene copolymer film layers, polyvinyl fluoride (PVF) film layers and polyvinylidene fluoride (PVDF) film layers.
In one embodiment, the inner adhesive layer 13 is a film layer, and an adhesive layer is further disposed between the inner adhesive layer 13 and the support material layer 12, so as to ensure good adhesion between the two layers.
In one embodiment, the transmittance of the front plate layer 1 is greater than or equal to 85%, such as 90% and 95%.
In one embodiment, the first adhesive film layer 2 and/or the second adhesive film layer 4 are packaging adhesive film layers for photovoltaic modules, and comprise any one or more of a POE (polyolefin) adhesive film layer, an EVA (ethylene-vinyl acetate copolymer) adhesive film layer and a PVB (polyvinyl butyral Ding Quanzhi) adhesive film layer, so that the materials of the layers of the multilayer structure are bonded and combined into a whole in a fusion crosslinking manner in the lamination process. The first adhesive film layer 2 and/or the second adhesive film layer 4 have excellent high light transmittance and weather resistance.
The skilled person will understand that the battery layer 3 is the core power generation unit of the lightweight photovoltaic module. In one embodiment, the battery layer 3 is a single-crystal battery layer or a multi-crystal battery layer.
In one embodiment, the cell arrangement density of the cell layer 3 is 30-90%, such as 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85% of the total package area. The cell arrangement density of the cell layer 3 can be adjusted according to the actual light transmission requirement.
In order to obtain good electrical insulation properties, light transmission properties and weather resistance properties, in one embodiment the backsheet layer 5 comprises any one or a combination of light transmitting materials of the TPC sheet layer, KPC sheet layer, TPO sheet layer, KPO sheet layer, CPC sheet layer, reinforced PET sheet layer.
In one embodiment, the backsheet layer 5 has a thickness of 0.2-0.7mm, such as 0.3mm, 0.4mm, 0.5mm and 0.6mm.
In one embodiment, the thickness of the first adhesive film layer 2 is 0.3 to 0.7mm, such as 0.4mm, 0.5mm and 0.6mm.
In one embodiment, the thickness of the second adhesive film layer 4 is 0.3 to 0.7mm, such as 0.4mm, 0.5mm and 0.6mm.
In one embodiment, the thickness of the battery layer 3 is 0.15-0.3mm, such as 0.2mm and 0.25mm.
In one embodiment, as shown in fig. 1 and 2, the lightweight photovoltaic module includes a multilayer structure and a junction box 6;
the multilayer structure comprises a front plate layer 1, a first adhesive film layer 2, a battery layer 3, a second adhesive film layer 4 and a back plate layer 5 which are sequentially laminated from top to bottom;
the junction box 6 is arranged on the outer side of the backboard layer 5 in the multilayer structure in a split mode;
the front plate layer 1 comprises a support material layer 12, wherein the two sides of the support material layer 12 are respectively provided with a fluorine-containing weather-proof layer 11 and an inner bonding layer 13; the front plate layer 1 is connected with the first adhesive film layer 2 through the inner adhesive layer 13;
the support material layer 12 is a PC resin material layer with a thickness of 1.0mm;
the fluorine-containing weather-proof layer 11 is a fluorocarbon resin coating with the thickness of 0.03mm;
the inner bonding layer 13 is a fluorine-containing acrylic coating with the thickness of 0.01mm;
the first adhesive film layer 2 is a high-permeability EVA adhesive film layer, and the thickness is 0.5mm;
the second adhesive film layer 4 is a high-cut-off EVA adhesive film layer with the thickness of 0.5mm;
the battery layer 3 is a single-crystal battery piece layer with the thickness of 0.2mm;
the backboard layer 5 is a TPC board layer with the thickness of 0.5mm.
In one embodiment, a method for manufacturing the light emitting component is provided, which comprises the following steps:
(1) The multilayer structure comprises a front plate layer 1, a first adhesive film layer 2, a battery layer 3, a second adhesive film layer 4 and a back plate layer 5 which are sequentially laminated from top to bottom in a lamination manner, and the components to be laminated are obtained through combination;
(2) Carrying out lamination treatment on the obtained component to be laminated, wherein the technological parameters of the lamination treatment are as follows:
laminating temperature is 100-150deg.C, such as 105deg.C, 110deg.C, 115 deg.C, 120 deg.C, 130 deg.C, 135 deg.C, 140 deg.C and 145 deg.C, preferably 125-145 deg.C;
in the vacuumizing stage, vacuumizing after the to-be-laminated assembly with the laminated sheets laid is put into an inner cavity of a laminating machine, wherein the vacuumizing time is 240-800s, such as 250s, 300s, 400s, 500s, 600s and 700s; the vacuum degree is 5-25Pa, such as 6Pa, 8Pa, 10Pa, 12Pa, 15Pa and 20Pa;
in the first stage of pressurization, the assembly is pressurized at a pressure of 35 to 60kPa, such as 40kPa, 45kPa, 50kPa, and 55kPa; the pressurization time is 120-240s, such as 130s, 150s, 200s and 220s;
continuing to pressurize the assembly during a second stage of pressurizing at 60-85kPa, such as 65kPa, 70kPa, 75kPa and 80kPa, for 120-240s, such as 130s, 150s, 200s and 220s;
in the third stage of pressurization, the assembly is continuously pressurized at 85-100kPa, such as 90kPa, 95kPa and 100kPa, for 120-900s, such as 130s, 150s, 200s, 400s, 600s and 800s;
in the cooling stage, the laminated photovoltaic module is conveyed to a cooling area through a conveyor belt, and the cold pressing pressure is 30-100kPa, such as 40kPa, 60kPa and 80kPa; cold pressing at 15-40deg.C, such as 20deg.C, 30deg.C and 35deg.C, and cold pressing for 300-600s, such as 350s, 400s, 500s and 550 s), cooling to room temperature.
(3) And performing operation procedures such as trimming, junction box installation, performance test and the like on the cooled photovoltaic module.
According to the light photovoltaic module for double-sided power generation, the front plate layer 1 and the back plate layer 5 are light polymer material layers, so that the problems that the existing double-glass double-sided power generation module is overweight in weight and high in load requirement and cannot meet curved surface installation can be effectively solved; the weight of the conventional double-glass assembly reaches 10-12kg/m 2 The weight of the lightweight photovoltaic module is only 3-4kg/m 2 The weight of the photovoltaic module is greatly reduced, and the wide applicability of the installation of the module is ensured; compared with a single-sided light assembly, the double-sided power generation light photovoltaic assembly can further improve the power generation efficiency, and has better economic benefit; the battery arrangement density of the battery layer 3 can be adjusted according to the light transmission requirement, and the light transmission requirement of scenes such as an agricultural greenhouse, a sunlight room and the like can be met through the adjustment of the battery arrangement density of the battery layer.
The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the spirit of the utility model.
Claims (10)
1. A lightweight photovoltaic module for double-sided power generation, characterized in that it comprises a multilayer structure and a junction box (6);
the multilayer structure comprises a front plate layer (1), a first adhesive film layer (2), a battery layer (3), a second adhesive film layer (4) and a back plate layer (5) which are sequentially arranged in a laminated mode from top to bottom;
the junction box (6) is arranged on the outer side of the multilayer structure; wherein, the liquid crystal display device comprises a liquid crystal display device,
the battery arrangement density of the battery layer (3) is 30-90% of the whole packaging area;
the back plate layer (5) comprises any one or a combination of a plurality of light-transmitting materials of a TPC plate layer, a KPC plate layer, a TPO plate layer, a KPO plate layer, a CPC plate layer and a reinforced PET plate layer.
2. The double-sided power generation light photovoltaic module according to claim 1, wherein the front plate layer (1) comprises a support material layer (12), and a fluorine-containing weather-resistant layer (11) and an inner bonding layer (13) are respectively arranged on two sides of the support material layer (12); the front plate layer (1) is connected with the first adhesive film layer (2) through the inner adhesive layer (13).
3. The double-sided power generation light weight photovoltaic module of claim 2, wherein,
the support material layer (12) is a PC material layer, and the PC material layer is any one or a combination of a plurality of PC resin material layers, PC/PET alloy material layers, PC/PBT alloy material layers and PC glass fiber toughening material layers; and/or
The thickness of the support material layer (12) is 0.25-2.0mm; and/or
The thickness of the front plate layer (1) is 0.3-2.2mm.
4. A lightweight photovoltaic module for double-sided power generation according to claim 2 or 3,
the fluorine-containing weather-proof layer (11) is a fluorine-containing coating or a fluorine-containing film layer;
the fluorine-containing film layer comprises any one or a combination of a plurality of ethylene-tetrafluoroethylene copolymer film layers, a polyvinyl fluoride film layer and a polyvinylidene fluoride film layer.
5. The double-sided power generation light weight photovoltaic module of claim 4, wherein,
the fluorine-containing weather-proof layer (11) is a fluorine-containing film layer, and an adhesive layer is further arranged between the fluorine-containing weather-proof layer (11) and the support material layer (12).
6. A lightweight photovoltaic module for double-sided power generation according to any one of claims 2, 3 and 5, characterized in that,
the inner bonding layer (13) is a coating or a film layer;
the coating comprises any one or more of an acrylic coating, a fluorocarbon resin coating and a polyurethane coating;
the film layer comprises a polyolefin film layer and/or a fluorine-containing film layer; the fluorine-containing film layer comprises any one or a combination of a plurality of ethylene-tetrafluoroethylene copolymer film layers, a polyvinyl fluoride film layer and a polyvinylidene fluoride film layer.
7. The double-sided power generation light weight photovoltaic module of claim 6, wherein,
the inner bonding layer (13) is a film layer, and an adhesive layer is further arranged between the inner bonding layer (13) and the support material layer (12).
8. The double-sided power generating lightweight photovoltaic module according to any of claims 1 to 3, 5 and 7, characterized in that,
the first adhesive film layer (2) and/or the second adhesive film layer (4) are packaging adhesive film layers for photovoltaic modules, and comprise any one or a combination of a plurality of POE adhesive film layers, EVA adhesive film layers and PVB adhesive film layers.
9. The double-sided power generating light weight photovoltaic module of claim 8, wherein,
the battery layer (3) is a single-crystal battery sheet layer or a multi-crystal battery sheet layer.
10. The double-sided power generating lightweight photovoltaic module according to any of claims 1 to 3, 5, 7 and 9, characterized in that,
the thickness of the back plate layer (5) is 0.2-0.7mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222775050.XU CN219085987U (en) | 2022-10-20 | 2022-10-20 | Light photovoltaic module with double-sided power generation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222775050.XU CN219085987U (en) | 2022-10-20 | 2022-10-20 | Light photovoltaic module with double-sided power generation |
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| CN219085987U true CN219085987U (en) | 2023-05-26 |
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| CN202222775050.XU Active CN219085987U (en) | 2022-10-20 | 2022-10-20 | Light photovoltaic module with double-sided power generation |
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