Portable photovoltaic module

Abstract

The utility model provides a portable photovoltaic module, portable photovoltaic module includes first protective layer, second protective layer, photovoltaic part and support membrane. Second protective layer is arranged side by side with first protective layer, the number of photovoltaic part is multiple, multiple photovoltaic parts are arranged between first protective layer and second protective layer, and two adjacent photovoltaic parts in multiple photovoltaic parts can be unfolded or folded, support membrane is arranged between two adjacent photovoltaic parts in multiple photovoltaic parts, and is located between second protective layer and first protective layer, and the both sides of support membrane are contacted with first protective layer and second protective layer respectively. The support membrane includes membrane body, first coating and second coating, and the both sides of first coating are contacted with first protective layer and membrane body respectively, and the both sides of second coating are contacted with second protective layer and membrane body respectively. The adhesive strength of support membrane and the first protective layer and second protective layer on its both sides is high, can avoid the risk of delamination and edge fuzzing in punching processing and use process.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, specifically to a portable photovoltaic module. Background Technology

[0002] Currently, in related technologies, solar photovoltaic modules are often used outdoors. The photovoltaic modules need to be frequently unfolded and folded in the bending area. By placing a window fabric layer in the middle bending area, the bonding strength between the fabric layer and the protective layers on both sides is relatively low. During the punching process and use, there is a risk of delamination and edge fraying. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the first aspect of this utility model proposes a portable photovoltaic module.

[0005] In view of the above, the first aspect of this utility model provides a portable photovoltaic module, which includes a first protective layer, a second protective layer, photovoltaic components, and a support film. The second protective layer is arranged side by side with the first protective layer; there are multiple photovoltaic components, which are disposed between the first and second protective layers, and two adjacent photovoltaic components can be unfolded or folded; the support film is disposed between two adjacent photovoltaic components and between the second and first protective layers, and both sides of the support film are in contact with the first and second protective layers, respectively; the support film includes a film body, a first coating layer, and a second coating layer. Both sides of the first coating layer are in contact with the first protective layer and the film body, respectively; both sides of the second coating layer are in contact with the second protective layer and the film body, respectively.

[0006] In this technical solution, the portable photovoltaic module includes a first protective layer, a second protective layer, photovoltaic components, and a supporting film. The second protective layer is arranged side by side with the first protective layer to achieve the desired arrangement of the two protective layers. Multiple photovoltaic components are disposed between the first and second protective layers. Adjacent photovoltaic components can be unfolded or folded. When folded, the space occupied by the portable photovoltaic module is reduced, making it easier to carry and improving its usability. When unfolded, the multiple photovoltaic components can absorb sunlight to generate electricity, thus enabling the portable photovoltaic module to operate normally.

[0007] A support film is positioned between two adjacent photovoltaic (PV) components and between the second and first protective layers to facilitate its installation and ensure protection by both layers. Because the support film is positioned between adjacent PV components, when the PV components are unfolded or folded, the adjacent PV components unfold or fold relative to the support film. Therefore, the area where the PV components are located is the power generation area, while the area where the support film is located is the bending area. The two sides of the support film contact the first and second protective layers respectively to fix the support film in place, thus preventing movement of the support film relative to the first and second protective layers when the PV components are unfolded or folded.

[0008] The support membrane includes a membrane body, a first coating, and a second coating. The first coating has two sides in contact with a first protective layer and the membrane body, respectively, to achieve its arrangement. The second coating has two sides in contact with a second protective layer and the membrane body, respectively, to achieve its arrangement. By setting the first and second coatings on the membrane body, the first and second coatings adhere more firmly to the first and second protective layers, thereby avoiding the risk of delamination or edge fraying.

[0009] Since portable photovoltaic (PV) modules are typically used outdoors and exposed to various harsh weather conditions, the first and second coatings possess excellent weather resistance, enabling the support film to resist environmental interference and damage, thereby improving its stability and lifespan. Secondly, when portable PV modules are used outdoors, ultraviolet (UV) radiation from sunlight can easily damage the support film. The first and second coatings, with their UV resistance, can prevent UV damage to the film, extending the lifespan of the portable PV modules. Furthermore, the coatings on both sides of the film also serve to conceal imperfections and enhance aesthetics.

[0010] This application improves the flexibility of the bending area by setting a support film in the bending region of the portable photovoltaic module. The support film supports the first and second protective layers, thereby enhancing the flexibility of the bending region. Furthermore, the support film has high adhesion strength to the first and second protective layers on both sides, avoiding the risk of delamination and edge fraying during punching and use. In addition, the support film has excellent unfolding and folding performance, which can extend the service life of the portable photovoltaic module.

[0011] This application incorporates a support film in the bending area of ​​a portable photovoltaic module. This support film exhibits dimensional stability after high and low temperature impacts, meaning its dimensions change minimally under varying temperature conditions. Therefore, for portable photovoltaic modules that are frequently folded or unfolded, the support film ensures structural stability. Compared to placing a fabric layer between two protective layers or using fabric to sew between adjacent photovoltaic components, the support film enhances the bonding strength between the first and second protective layers, preventing delamination due to weak adhesion during die-cutting and use. Furthermore, the support film method avoids the risk of edge fraying, thus preventing any impact on the appearance of the portable photovoltaic module.

[0012] In one technical solution of this utility model, the membrane body optionally includes a polymer membrane.

[0013] In one technical solution of this utility model, the polymer membrane may optionally include a polyimide-based membrane.

[0014] In one technical solution of this utility model, optionally, the first coating includes a first black fluorocarbon coating, and / or the second coating includes a second black fluorocarbon coating.

[0015] In one technical solution of this utility model, optionally, the support film further includes a first adhesive film layer, which is disposed on the side of the second coating away from the film body.

[0016] In one technical solution of this utility model, optionally, the first protective layer includes a first weather-resistant layer and a second adhesive film layer, the second adhesive film layer being disposed between the first weather-resistant layer and the support film; the second protective layer includes a second weather-resistant layer and a third adhesive film layer, the third adhesive film layer being disposed between the second weather-resistant layer and the support film.

[0017] In one embodiment of this invention, the photovoltaic component optionally includes a first substrate, a second substrate, a cell layer, a fourth encapsulant layer, and a fifth encapsulant layer. The first substrate is located between a first protective layer and a second protective layer; the second substrate is located between the first substrate and the second protective layer; the cell layer is disposed between the first substrate and the second substrate; the fourth encapsulant layer is disposed between the first substrate and the cell layer; and the fifth encapsulant layer is disposed between the second substrate and the cell layer.

[0018] In one technical solution of this utility model, optionally, the thickness of the support film is greater than or equal to 60 micrometers and less than or equal to 100 micrometers.

[0019] In one technical solution of this utility model, the portable photovoltaic module may optionally include a wire, which is disposed between two adjacent photovoltaic components among the multiple photovoltaic components, located between the first protective layer and the second protective layer, and the two ends of the wire are respectively connected to two adjacent photovoltaic components among the multiple photovoltaic components.

[0020] In one technical solution of this utility model, the portable photovoltaic module optionally has a through hole that penetrates the first protective layer, the second protective layer and the support film, and the through hole is arranged along the length direction of the support film.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 One of the schematic diagrams of the layered structure of a portable photovoltaic module according to an embodiment of the present invention is shown;

[0024] Figure 2 One of the schematic diagrams of a portable photovoltaic module unfolded according to an embodiment of the present invention is shown;

[0025] Figure 3 One of the schematic diagrams of a portable photovoltaic module folded according to an embodiment of the present invention is shown;

[0026] Figure 4 A schematic diagram of the bending region of a portable photovoltaic module according to an embodiment of the present invention is shown;

[0027] Figure 5 A schematic diagram of the layering of a support membrane according to an embodiment of the present invention is shown;

[0028] Figure 6 A second schematic diagram of the layered structure of a portable photovoltaic module according to an embodiment of the present invention is shown;

[0029] Figure 7 A second schematic diagram of a portable photovoltaic module unfolded according to an embodiment of the present invention is shown.

[0030] Figure 8 for Figure 7 The image shown is a partial enlarged view of a portable photovoltaic module at point C, representing an embodiment of the present invention.

[0031] Figure 9 The third illustration shows a portable photovoltaic module unfolded according to an embodiment of the present invention.

[0032] in, Figures 1 to 9 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0033] 100 Portable photovoltaic module, 110 First protective layer, 112 First weather-resistant layer, 114 Second encapsulant layer, 120 Second protective layer, 122 Second weather-resistant layer, 124 Third encapsulant layer, 130 Photovoltaic component, 132 First substrate, 133 Second substrate, 134 Cell layer, 136 Fourth encapsulant layer, 138 Fifth encapsulant layer, 140 Support film, 142 Film body, 144 First coating, 146 Second coating, 148 First encapsulant layer, 150 Through hole, 160 Frame, 170 Sixth encapsulant layer, 180 Wire. Detailed Implementation

[0034] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0036] The following reference Figures 1 to 9 A portable photovoltaic module 100 according to some embodiments of the present invention is described.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of this application provides a portable photovoltaic module 100, which includes a first protective layer 110, a second protective layer 120, photovoltaic components 130, and a support film 140. The second protective layer 120 is arranged side-by-side with the first protective layer 110; multiple photovoltaic components 130 are disposed between the first protective layer 110 and the second protective layer 120, and adjacent photovoltaic components 130 can be unfolded or folded; the support film 140 is disposed between adjacent photovoltaic components 130 and between the second protective layer 120 and the first protective layer 110, with both sides of the support film 140 contacting the first protective layer 110 and the second protective layer 120 respectively; Figure 4 and Figure 5 As shown, the support membrane 140 includes a membrane body 142, a first coating 144, and a second coating 146. The two sides of the first coating 144 are in contact with the first protective layer 110 and the membrane body 142, respectively; the two sides of the second coating 146 are in contact with the second protective layer 120 and the membrane body 142, respectively.

[0038] In this embodiment, the portable photovoltaic module 100 includes a first protective layer 110, a second protective layer 120, photovoltaic components 130, and a support film 140. The second protective layer 120 is arranged side by side with the first protective layer 110 to achieve the arrangement of the two protective layers. Multiple photovoltaic components 130 are disposed between the first protective layer 110 and the second protective layer 120. Adjacent photovoltaic components 130 can be unfolded or folded. When folded, the space occupied by the portable photovoltaic module 100 is reduced, making it easier to carry and improving the convenience of use. When unfolded, the multiple photovoltaic components 130 can absorb sunlight to generate electricity, thereby enabling the normal operation of the portable photovoltaic module 100.

[0039] A support film 140 is disposed between two adjacent photovoltaic components 130 and between the second protective layer 120 and the first protective layer 110 to facilitate the installation of the support film 140, allowing the first and second protective layers 110 to protect it. Since the support film 140 is disposed between two adjacent photovoltaic components 130, when the photovoltaic components 130 are unfolded or folded, the adjacent photovoltaic components 130 unfold or fold relative to the support film 140. Therefore, the location of the photovoltaic components 130 is the power generation area, while the location of the support film 140 is the bending area. Both sides of the support film 140 contact the first and second protective layers 110 and 120 respectively to fix the support film 140, thereby preventing the support film 140 from moving relative to the first and second protective layers 110 and 120 when the photovoltaic components 130 are unfolded or folded.

[0040] The support membrane 140 includes a membrane body 142, a first coating 144, and a second coating 146. The two sides of the first coating 144 contact the first protective layer 110 and the membrane body 142, respectively, to achieve the arrangement of the first coating 144. The two sides of the second coating 146 contact the second protective layer 120 and the membrane body 142, respectively, to achieve the arrangement of the second coating 146. By providing the first coating 144 and the second coating 146 on the membrane body 142, the first coating 144 and the second coating 146 are more firmly bonded to the first protective layer 110 and the second protective layer 120, thereby avoiding the risk of delamination or edge fraying.

[0041] Since portable photovoltaic modules 100 are typically used outdoors and exposed to various harsh weather conditions, the first coating 144 and the second coating 146 possess excellent weather resistance, enabling the support film 140 to resist environmental interference and damage, thereby improving its stability and lifespan. Secondly, when portable photovoltaic modules 100 are used outdoors, ultraviolet rays in sunlight can easily damage the support film 140. The first coating 144 and the second coating 146 have UV resistance, thus preventing ultraviolet rays from damaging the film 142 and extending the lifespan of the portable photovoltaic module 100. Furthermore, by applying coatings to both sides of the film 142, it also serves to conceal imperfections and enhance aesthetics.

[0042] This application provides a support film 140 in the bending area of ​​the portable photovoltaic module 100. The support film 140 supports the first protective layer 110 and the second protective layer 120, thereby improving the flexibility of the bending area. Furthermore, the support film 140 has high adhesive strength to the first protective layer 110 and the second protective layer 120 on both sides, avoiding the risk of delamination and edge fraying during punching and use. Additionally, the support film 140 has excellent unfolding and folding performance, which can extend the service life of the portable photovoltaic module 100.

[0043] This application incorporates a support film 140 in the bending area of ​​the portable photovoltaic module 100. The support film 140 exhibits dimensional stability after high and low temperature impacts, meaning its dimensions change minimally under varying temperature conditions. Therefore, for the portable photovoltaic module 100, which is frequently folded or unfolded, the support film 140 ensures structural stability. Compared to placing a fabric layer between two protective layers or using fabric sewing between adjacent photovoltaic components, the support film 140 enhances the bonding strength with the first protective layer 110 and the second protective layer 120, preventing delamination due to weak adhesion during die-cutting and use. Furthermore, the support film 140 also avoids the risk of edge fraying, thus preventing any impact on the appearance of the portable photovoltaic module 100.

[0044] Specifically, in Figure 1 and Figure 2 In the diagram, arrow A represents the power generation area, and arrow B represents the bending area.

[0045] Specifically, such as Figure 4 As shown, the bent area of ​​the portable photovoltaic module 100 includes a first protective layer 110, a second protective layer 120, and a support film 140.

[0046] This embodiment provides a portable photovoltaic module 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0047] Membrane 142 includes a polymer membrane.

[0048] In this embodiment, because the polymer film has strong bonding force, it is used as the film body 142 of the support film 140. This improves the bonding force between the support film 140 and the first protective layer 110 and the second protective layer 120. Furthermore, the polymer film has high flexibility, exhibits dimensional stability after high and low temperature impacts, and is easy to fold. Compared to the fabric layer, the polymer film enhances the adhesion between the support film 140 and the first and second protective layers 110 and 120, allowing the support film 140 to be tightly connected to the first and second protective layers 110 and 120. It also prevents the first and second protective layers 110 and 120 at the edges from separating from the support film 140, thereby avoiding the risk of delamination and edge fraying during die-cutting and use.

[0049] Specifically, the polymer membrane includes one of the following: polyimide-based membrane, polyphenylene sulfide membrane, perfluoroethylene propylene copolymer membrane, or polyethylene naphthalate membrane.

[0050] This embodiment provides a portable photovoltaic module 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0051] Polymer membranes include polyimide-based membranes.

[0052] In this embodiment, a polyimide-based film is used as the film body 142 of the support film 140. Because the polyimide-based film has high surface energy, it can form a stable connection with the first protective layer 110 and the second protective layer 120, thereby significantly improving the adhesion between the support film 140 and the protective layers, thus avoiding delamination and edge fraying problems during punching and use. The polyimide-based film exhibits dimensional stability after high and low temperature impacts, meaning that the size of the polyimide-based film changes little under different temperature environments. Therefore, for portable photovoltaic modules 100 that are frequently folded or unfolded, the size change of the polyimide-based film is small. Furthermore, a first coating 144 and a second coating 146 are respectively provided on both sides of the polyimide-based film, allowing for a stronger bond between the first coating 144 and the first protective layer 110 and the second protective layer 120, thereby ensuring structural stability. Compared to placing a fabric layer between two protective layers, the polyimide-based film can improve the adhesion between the first protective layer 110 and the second protective layer 120, avoiding delamination due to weak adhesion during die-cutting and use. Using a polyimide-based film also avoids the risk of edge fraying, thus preventing any impact on the appearance of the portable photovoltaic module 100.

[0053] This embodiment provides a portable photovoltaic module 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0054] The first coating 144 includes a first black fluorocarbon coating, and / or the second coating 146 includes a second black fluorocarbon coating.

[0055] In this embodiment, the fluorocarbon coating provides excellent weather resistance and UV resistance. Therefore, the first and second black fluorocarbon coatings are respectively applied to both sides of the film 142, ensuring that both sides of the supporting film 140 possess weather resistance and UV resistance. This prevents the supporting film 140 from being damaged by harsh weather and ultraviolet radiation outdoors, thereby extending the service life of the portable photovoltaic module 100. The first and second black fluorocarbon coatings also improve the color consistency of the portable photovoltaic module 100's surface, making it more aesthetically pleasing and harmonious in appearance.

[0056] Specifically, membrane 142 is a PI (Polyimide) based membrane. Through the combined action of the PI composite membrane, the first black fluorocarbon coating, and the second black fluorocarbon coating, it has high reliability after passing the DH (Damp Heat) 1000 test, the TC (Thermal Cycling) 200 test, and the UV (Ultraviolet) 150kWh test, and the product has no obvious color difference.

[0057] This embodiment provides a portable photovoltaic module 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0058] like Figure 5 As shown, the support membrane 140 also includes a first adhesive layer 148, which is disposed on the side of the second coating 146 opposite to the membrane body 142.

[0059] In this embodiment, by providing a first adhesive layer 148 on the side of the second coating 146 away from the film body 142, the first adhesive layer 148 can enhance the bonding force between the support film 140 and the second protective layer 120, thereby enabling the support film 140 to be tightly connected with the second protective layer 120, further improving the connection strength of the support film 140.

[0060] Specifically, the thickness of the first black fluorocarbon coating is 5 μm to 8 μm.

[0061] Specifically, the thickness of the first black fluorocarbon coating is 5 μm.

[0062] Specifically, the thickness of the first black fluorocarbon coating is 6.5 μm.

[0063] Specifically, the thickness of the first black fluorocarbon coating is 8 μm.

[0064] Specifically, the thickness of the second black fluorocarbon coating is 5 μm to 8 μm.

[0065] Specifically, the thickness of the second black fluorocarbon coating is 5 μm.

[0066] Specifically, the thickness of the second black fluorocarbon coating is 6.5 μm.

[0067] Specifically, the thickness of the second black fluorocarbon coating is 8 μm.

[0068] Specifically, the first adhesive film layer 148 is an EVA (Ethylene Vinyl Acetate Copolymer) adhesive film layer with a thickness of 25μm to 50μm.

[0069] Specifically, the thickness of the first adhesive film layer 148 is 25 μm, 35 μm, or 50 μm.

[0070] Specifically, the membrane 142 is a PI (Polyimide) based membrane with a thickness of 25 μm to 35 μm.

[0071] Specifically, the thickness of the membrane 142 is 25 μm, 30 μm, or 35 μm.

[0072] This embodiment provides a portable photovoltaic module 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0073] like Figure 1 and Figure 6 As shown, the first protective layer 110 includes a first weather-resistant layer 112 and a second adhesive film layer 114, with the second adhesive film layer 114 disposed between the first weather-resistant layer 112 and the support film 140; the second protective layer 120 includes a second weather-resistant layer 122 and a third adhesive film layer 124, with the third adhesive film layer 124 disposed between the second weather-resistant layer 122 and the support film 140.

[0074] In this embodiment, the first protective layer 110 includes a first weather-resistant layer 112 and a second adhesive film layer 114. The second adhesive film layer 114 is disposed between the first weather-resistant layer 112 and the support film 140. The first weather-resistant layer 112 can support and protect one side of the support film 140 and the photovoltaic component 130, preventing the portable photovoltaic module 100 from external damage. The second adhesive film layer 114 has strong adhesion and flexibility, and can tightly connect the first weather-resistant layer 112 to one side of the support film 140. The second protective layer 120 includes a second weather-resistant layer 122 and a third adhesive film layer 124. The third adhesive film layer 124 is disposed between the second weather-resistant layer 122 and the support film 140. The second weather-resistant layer 122 can support and protect the other side of the support film 140 and the photovoltaic component 130, preventing the portable photovoltaic module 100 from external damage. The third adhesive layer 124 has strong adhesion and flexibility, enabling it to tightly connect the second weather-resistant layer 122 to the other side of the support film 140. Therefore, by providing the first protective layer 110 and the second protective layer 120 on both sides of the support film 140 and the photovoltaic component 130, not only can the photovoltaic component 130 and the support film 140 be supported, but both sides of the photovoltaic component 130 and the support film 140 can also be protected, thereby extending the service life of the portable photovoltaic module 100.

[0075] Specifically, the first weather-resistant layer 112 can be a fluorinated film selected from ETFE (Ethylene Tetrafluoroethylene Copolymer), PVF (Polyvinyl Fluoride) film or PVDF (Polyvinylidene Fluoride) film, with a thickness of 25 μm to 35 μm.

[0076] Specifically, the thickness of the first weather-resistant layer 112 is 25 μm, 30 μm, or 35 μm.

[0077] Specifically, the second weather-resistant layer 122 can be a fluorinated film selected from ETFE, PVF, or PVDF, with a thickness of 25 μm to 35 μm.

[0078] Specifically, the thickness of the second weather-resistant layer 122 is 25 μm, 30 μm, or 35 μm.

[0079] Specifically, the second film layer 114 is EVA (Ethylene Vinyl Acetate Copolymer), POE (Polyolefin Rlastomer), or EPE (EVA / POE / EVA co-extruded film), with a thickness of 0.35 mm to 0.55 mm.

[0080] Specifically, the thickness of the second adhesive film layer 114 is 0.35 mm, 0.45 mm, or 0.55 mm.

[0081] Specifically, the third film layer 124 is EVA, POE or EPE (EVA / POE / EVA co-extruded film) with a thickness of 0.35mm to 0.55mm.

[0082] Specifically, the thickness of the second adhesive film layer 114 is 0.35 mm, 0.45 mm, or 0.55 mm.

[0083] This embodiment provides a portable photovoltaic module 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0084] like Figure 1 and Figure 6 As shown, the photovoltaic component 130 includes a first substrate 132, a second substrate 133, a cell layer 134, a fourth encapsulant layer 136, and a fifth encapsulant layer 138. The first substrate 132 is located between the first protective layer 110 and the second protective layer 120; the second substrate 133 is located between the first substrate 132 and the second protective layer 120; the cell layer 134 is disposed between the first substrate 132 and the second substrate 133; the fourth encapsulant layer 136 is disposed between the first substrate 132 and the cell layer 134; and the fifth encapsulant layer 138 is disposed between the second substrate 133 and the cell layer 134.

[0085] In this embodiment, the first substrate 132 is located between the first protective layer 110 and the second protective layer 120; the second substrate 133 is located between the first substrate 132 and the second protective layer 120; and the battery layer 134 is disposed between the first substrate 132 and the second substrate 133 to achieve the assembly of the first substrate 132, the battery layer 134, and the second substrate 133, so that the first substrate 132 and the second substrate 133 can protect the battery layer 134 from external damage. By setting the battery layer 134, when multiple photovoltaic components 130 are deployed, the battery layer 134 can convert solar energy into electrical energy. When sunlight shines on the battery layer 134, the energy of photons is absorbed, thereby forming an electric current, so that the portable photovoltaic module 100 can generate electricity by utilizing sunlight. A fourth adhesive layer 136 is disposed between the first substrate 132 and the battery layer 134 to achieve a tight bond between the first substrate 132 and the battery layer 134. A fifth adhesive layer 138 is disposed between the second substrate 133 and the battery layer 134 to achieve a tight bond between the second substrate 133 and the battery layer 134. By providing the fourth adhesive layer 136 and the fifth adhesive layer 138, the stability of the battery layer 134 after installation can be improved.

[0086] Specifically, the first substrate 132 is a front plate for packaging, and the first substrate 132 is made of a light-transmitting material so that sunlight can pass through the first substrate 132 and be received by the battery layer 134.

[0087] Specifically, the first substrate 132 is one of a transparent PET (Polyethylene Terephthalate) film or a CPC (coating / PET / coating) film, wherein the coating is a coating layer, and the thickness of the first substrate 132 is 0.3 mm to 0.5 mm.

[0088] Specifically, the thickness of the first substrate 132 is 0.3 mm, 0.4 mm, or 0.5 mm.

[0089] Specifically, the second substrate 133 is one of a transparent or light-transmitting PET or CPC (coating / PET / coating) film, with a thickness of 0.3 mm to 0.5 mm.

[0090] Specifically, the thickness of the second substrate 133 is 0.3 mm, 0.4 mm, or 0.5 mm.

[0091] Specifically, the fourth adhesive layer 136 is a POE film material with a thickness of 0.4 mm to 0.7 mm.

[0092] Specifically, the thickness of the fourth adhesive film layer 136 is 0.4 mm, 0.55 mm, or 0.7 mm.

[0093] Specifically, the fifth film layer 138 is a POE film material with a thickness of 0.4 mm to 0.7 mm.

[0094] Specifically, the thickness of the fifth adhesive film layer 138 is 0.4 mm, 0.55 mm, or 0.7 mm.

[0095] Specifically, the battery layer 134 includes a Topcon (Tunnel Oxide Passivating Contacts) battery.

[0096] Specifically, the battery layer 134 includes PERC (Passivated Emitter and Rear Cell).

[0097] Specifically, the battery cells of battery layer 134 are made of one of 1 / 2 slices, 1 / 4 slices or 1 / 6 slices. The battery cells are welded into battery strings and connected by busbars to form a battery string layer.

[0098] Specifically, such as Figure 6 As shown, in one embodiment of this application, the portable photovoltaic module 100 further includes a sixth adhesive film layer 170, which is located between the second substrate 133 and the third adhesive film layer 124, thereby further improving the adhesion between the photovoltaic component 130 and the second protective layer 120.

[0099] This embodiment provides a portable photovoltaic module 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0100] like Figure 5 As shown, the thickness of the support membrane 140 is greater than or equal to 60 micrometers and less than or equal to 100 micrometers.

[0101] In this embodiment, the flexibility and folding performance of the support film 140 are adjusted by modifying its thickness. If the thickness of the support film 140 is too small, it is easily damaged or damage is unavoidable. If the thickness of the support film 140 is too large, it will hinder the unfolding or folding of the portable photovoltaic module 100. Therefore, this application sets the thickness of the support film 140 to 60 micrometers to 100 micrometers, thereby achieving strong adhesion between the support film 140 and the first protective layer 110 and the second protective layer 120, while also providing excellent unfolding and folding performance.

[0102] Specifically, in Figure 5 In the diagram, arrow D indicates the thickness of the support membrane 140.

[0103] This embodiment provides a portable photovoltaic module 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0104] like Figure 2 , Figure 7 and Figure 8 As shown, the portable photovoltaic module 100 has a through hole 150, which penetrates the first protective layer 110, the second protective layer 120 and the support film 140, and is arranged along the length direction of the support film 140.

[0105] In this embodiment, the portable photovoltaic module 100 has a through hole 150 that penetrates the first protective layer 110, the second protective layer 120 and the support film 140. The through hole 150 is arranged along the length of the support film 140. By providing the through hole 150 in the bending area of ​​the portable photovoltaic module 100, the area of ​​the photovoltaic component 130 participating in folding in the bending area can be reduced, making it easier for the portable photovoltaic module 100 to be folded or unfolded.

[0106] Specifically, in Figure 8 In the diagram, arrow E indicates the length direction of the support membrane 140.

[0107] This embodiment provides a portable photovoltaic module 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0108] like Figure 7 , Figure 8 and Figure 9 As shown, the portable photovoltaic module 100 also includes a wire 180, which is disposed between two adjacent photovoltaic components 130 among the plurality of photovoltaic components 130, located between the first protective layer 110 and the second protective layer 120, and the two ends of the wire 180 are respectively connected to two adjacent photovoltaic components 130 among the plurality of photovoltaic components 130.

[0109] In this embodiment, the conductor 180 is disposed between two adjacent photovoltaic components 130, located between the first protective layer 110 and the second protective layer 120. Both ends of the conductor 180 are connected to two adjacent photovoltaic components 130, respectively, allowing the conductor to electrically connect the adjacent photovoltaic components 130. This enables the current generated by the photovoltaic components 130 to flow through the conductor 180, facilitating power output. Furthermore, the first protective layer 110 and the second protective layer 120 protect the conductor 180 internally, preventing damage during use.

[0110] Specifically, conductor 180 is a flexible connecting conductor.

[0111] Specifically, conductor 180 is a braided copper strip.

[0112] Specifically, such as Figure 8 and Figure 9 As shown, the portable photovoltaic module 100 also includes a frame 160, which is located on the side of the first protective layer 110 or the second protective layer 120 away from the photovoltaic component 130, so that the frame 160 can support the photovoltaic component 130 and facilitate the unfolding or folding of the portable photovoltaic module 100.

[0113] Specifically, the portable foldable photovoltaic module 100 of this application uses an ultra-thin flexible support film 140 in the middle bending connection area, which has dimensional stability after high and low temperature impact, consistent MD / TD mechanical properties, and ultra-low thermal shrinkage rate of <0.1%.

[0114] Specifically, the portable foldable photovoltaic module 100 of this application is tested for 1000 times of forward unfolding and folding and 100 times of reverse unfolding and folding as one cycle. After 6 cycles of testing, no delamination or edge fuzzing occurred in the middle bending area, the appearance was good, the power decay of electrical performance was <2%, and it has excellent unfolding and folding performance.

[0115] Specifically, the portable photovoltaic module 100 in this application is a double-sided portable foldable photovoltaic module, which adopts an integrated lamination process. The PI composite film material is used to replace the window fabric in the middle bending area. Both sides of the PI composite film are coated with a black fluorocarbon coating, which can provide excellent weather resistance and UV resistance. At the same time, the black color is consistent with the appearance color of the portable photovoltaic module 100, which can play a role in concealing defects and improving aesthetics.

[0116] In the claims, description, and accompanying drawings of this utility model, the term "plural" refers to two or more objects. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description process, and are not intended to indicate or imply that the device or element referred to must have the described specific orientation, or be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limitations on this utility model. The terms "connect," "install," "fix," etc., should be interpreted broadly. For example, "connect" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood based on the specific circumstances described above.

[0117] In the claims, description, and drawings of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In the claims, description, and drawings of this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0118] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable photovoltaic module, characterized in that, The portable photovoltaic module includes: First protective layer; A second protective layer is provided side by side with the first protective layer; A photovoltaic component, wherein there are multiple photovoltaic components disposed between the first protective layer and the second protective layer, and two adjacent photovoltaic components can be unfolded or folded. A support film is disposed between two adjacent photovoltaic components among the plurality of photovoltaic components, and is located between the second protective layer and the first protective layer. The two sides of the support film are in contact with the first protective layer and the second protective layer, respectively. The support membrane includes a membrane body, a first coating, and a second coating. The first coating is in contact with the first protective layer and the film on both sides, respectively; The second coating is in contact with the second protective layer and the film on both sides, respectively.

2. The portable photovoltaic module according to claim 1, characterized in that, The membrane includes a polymer membrane.

3. The portable photovoltaic module according to claim 2, characterized in that, The polymer membrane includes a polyimide-based membrane.

4. The portable photovoltaic module according to claim 2, characterized in that, The first coating comprises a first black fluorocarbon coating, and / or the second coating comprises a second black fluorocarbon coating.

5. The portable photovoltaic module according to claim 1, characterized in that, The support membrane further includes: A first adhesive film layer is disposed on the side of the second coating away from the film body.

6. The portable photovoltaic module according to claim 1, characterized in that, The first protective layer includes a first weather-resistant layer and a second adhesive film layer, wherein the second adhesive film layer is disposed between the first weather-resistant layer and the support film; The second protective layer includes a second weather-resistant layer and a third adhesive film layer, wherein the third adhesive film layer is disposed between the second weather-resistant layer and the support film.

7. The portable photovoltaic module according to claim 1, characterized in that, The photovoltaic component includes: A first substrate, wherein the first substrate is located between the first protective layer and the second protective layer; The second substrate is located between the first substrate and the second protective layer; A battery layer is disposed between the first substrate and the second substrate; A fourth adhesive film layer is disposed between the first substrate and the battery layer; A fifth adhesive film layer is disposed between the second substrate and the battery layer.

8. The portable photovoltaic module according to any one of claims 1 to 7, characterized in that, The thickness of the support membrane is greater than or equal to 60 micrometers and less than or equal to 100 micrometers.

9. The portable photovoltaic module according to any one of claims 1 to 7, characterized in that, Also includes: A wire is disposed between two adjacent photovoltaic components among the plurality of photovoltaic components, located between the first protective layer and the second protective layer, and the two ends of the wire are respectively connected to two adjacent photovoltaic components among the plurality of photovoltaic components.

10. The portable photovoltaic module according to any one of claims 1 to 7, characterized in that, The portable photovoltaic module has a through hole that penetrates the first protective layer, the second protective layer, and the support film, and the through hole is arranged along the length direction of the support film.

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