A flexible solar panel assembly

Abstract

The utility model discloses a kind of flexible solar panel assemblies, including front flexible panel, cell piece layer and back flexible panel of stacking arrangement, further include protective layer, the protective layer includes a plurality of protective transparent cover board in matrix distribution, equal interval gap space is left between adjacent protective transparent cover board, the cell piece layer includes a plurality of cell piece unit in matrix distribution, at least one cell piece unit is correspondingly provided with in each protective transparent cover board below;Front adhesive film layer is arranged between the front flexible panel and protective layer, middle adhesive film layer is arranged between protective layer and cell piece layer, back adhesive film layer is arranged between cell piece layer and back plate, front adhesive film layer, middle adhesive film layer and back adhesive film layer are formed total adhesive film layer by hot melting, which is internally embedded with protective transparent cover board and cell piece unit.The utility model structure design is reasonable, while guaranteeing that solar panel has flexible bending performance, it has good impact protection ability.

Description

Technical Field

[0001] This utility model relates to the field of solar panel technology, specifically to a flexible solar panel assembly. Background Technology

[0002] Photovoltaic modules, also known as solar panels, are the most important components of a solar power generation system. A complete photovoltaic module consists of dozens of solar cells, a junction box, and a frame. Conventional solar panels in existing technology mainly consist of stacked glass layers, encapsulant layers, cell cell layers, encapsulant layers, and a backsheet layer. Although conventional solar panels use a glass layer as the front panel, providing good impact resistance and protecting the cell cells from damage caused by objects such as hail, glass lacks flexibility, making these solar panels unsuitable for curved surfaces. Flexible solar panels, on the other hand, mainly consist of stacked flexible front panels, encapsulant layers, cell cell layers, encapsulant layers, and a flexible backsheet. While they possess flexibility and bending capabilities, their impact resistance is weaker, and the internal cell cell layers are easily damaged in severe weather conditions (such as sandstorms or hail).

[0003] For example, utility model patent application number 202220242370.6 discloses a flexible solar panel module. The flexible solar panel module provided by the above solution strengthens the structural strength while ensuring flexibility, making it suitable for mobile applications such as RVs and ships. However, the structural reinforcement layer in the above solution mainly strengthens the bending performance and cannot cover the battery cell layer, which is still susceptible to impact damage. Utility Model Content

[0004] The purpose of this invention is to provide a flexible solar panel module to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A flexible solar panel assembly includes a front flexible panel, a cell layer and a back flexible panel stacked together, and a protective layer. The protective layer includes a plurality of protective transparent covers arranged in a matrix, with equidistant gaps between adjacent protective transparent covers. The cell layer includes a plurality of cell units arranged in a matrix, with at least one cell unit disposed below each protective transparent cover. A front adhesive film layer is provided between the front flexible panel and the protective layer, a middle adhesive film layer is provided between the protective layer and the battery cell layer, and a back adhesive film layer is provided between the battery cell layer and the back flexible panel. The front adhesive film layer, the middle adhesive film layer and the back adhesive film layer are heat-melted to form a total adhesive film layer in which a protective transparent cover plate and a battery cell unit are embedded.

[0006] Preferably, the protective transparent cover is a glass cover.

[0007] Preferably, the glass cover is high-alumina tempered glass and / or physically semi-tempered glass.

[0008] Preferably, the battery cell unit specifically adopts a P-type PERC battery cell, an N-type TOPCon battery cell, and / or a BC battery cell.

[0009] Preferably, the pre-adhesive film layer, the middle adhesive film layer, and the back adhesive film layer are all made of POE material, and their basis weight is greater than 400g / m³. 2 This allows the total adhesive film layer after hot melting to not only bond the front flexible panel and the back flexible panel well, but also to cover and separate each protective transparent cover and battery cell unit, protecting the internal battery cell unit.

[0010] Preferably, the front flexible panel is a transparent water-blocking front panel with a thickness of 250–400 μm.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by isolating each battery cell unit from above with a protective transparent cover, the protective transparent cover can directly withstand the instantaneous impact of objects such as hail. With the buffering cooperation of the total adhesive film layer, the instantaneous impact can be buffered and dispersed, thereby avoiding severe impact damage to the battery cell unit; the structure design of this utility model is reasonable, ensuring that the solar panel has flexible bending performance while having good impact protection capability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the unfolded three-dimensional structure of a flexible solar panel module; Figure 2 This is a partial cross-sectional structural diagram of a first embodiment of a flexible solar panel module after assembly. Figure 3 This is a partial cross-sectional structural diagram of a second embodiment of a flexible solar panel module after assembly.

[0013] In the diagram: 1. Front flexible panel; 2. Front adhesive film layer; 3. Protective transparent cover; 4. Middle adhesive film layer; 5. Battery cell unit; 6. Back adhesive film layer; 7. Back flexible panel; 100. Total adhesive film layer. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-2 A flexible solar panel module includes a front flexible panel 1, a battery cell layer, and a back flexible panel 7 stacked together. It also includes a protective layer, which includes multiple protective transparent cover plates 3 arranged in a matrix. There are equidistant gaps between adjacent protective transparent cover plates 3. The horizontal width of the equidistant gaps can be 2~10mm. The solar panel module can be bent at each equidistant gap, so that the solar panel module can adapt to the arrangement of curved surfaces. The battery cell layer includes multiple battery cell units 5 arranged in a matrix. Each protective transparent cover plate 3 has a corresponding battery cell unit 5 below it. A front adhesive film layer 2 is provided between the front flexible panel 1 and the protective layer, a middle adhesive film layer 4 is provided between the protective layer and the battery cell layer, and a back adhesive film layer 6 is provided between the battery cell layer and the back flexible panel 7. The front adhesive film layer 2, the middle adhesive film layer 4 and the back adhesive film layer 6 are hot-melted to form a total adhesive film layer 100 in which a protective transparent cover plate 3 and a battery cell unit 5 are embedded.

[0016] The working principle of this utility model is as follows: the protective transparent cover plate 3 isolates each battery cell unit 5 from above. The protective transparent cover plate 3 can directly withstand the instantaneous impact of objects such as hail. With the buffering cooperation of the total adhesive film layer 100, the instantaneous impact can be buffered and dispersed, thereby avoiding serious impact damage to the battery cell unit 5. The structure of this utility model is reasonably designed, which ensures that the solar panel has flexible bending performance while having good impact protection capability.

[0017] As a specific embodiment, the protective transparent cover 3 is a glass cover with a thickness of 0.7 to 1.6 mm. The glass cover can be made of 0.7 to 1.0 mm thick high-alumina silicate tempered glass, 1.0 to 1.6 mm thick medium-alumina silicate tempered glass, or 1.6 mm thick soda-lime physical semi-tempered glass.

[0018] As a specific solution, depending on actual needs, the solar cell unit 5 can specifically adopt a P-type PERC solar cell unit, an N-type TOPCon solar cell unit, and / or a BC solar cell unit.

[0019] As a specific embodiment, the front adhesive film layer 2, the middle adhesive film layer 4, and the back adhesive film layer 6 are all made of POE material, and their basis weights are all greater than 400g / m². 2This allows the total adhesive film layer 100 after hot melting to not only bond the front flexible panel 1 and the back flexible panel 7 well, but also to cover and separate each protective transparent cover plate 3 and battery cell unit 5, protecting the internal battery cell unit 5, achieving a good water-blocking effect, and preventing the battery cell unit 5 from being corroded.

[0020] The front flexible panel 1 can be a transparent front panel with a PET-based composite structure and a thickness of 250-400 μm. The back flexible panel 7 can be an aluminum-containing back panel with a double-layer PET composite structure and an aluminum foil thickness of 7-25 μm. The total thickness is 250-400 μm.

[0021] Please see Figure 3 In another embodiment, two battery cell units 5 are provided under each protective transparent cover 3. Obviously, as another option, the number of battery cell units 5 under each protective transparent cover 3 can also be arranged according to the actual needs of the scenario.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A flexible solar panel assembly, comprising a front flexible panel (1), a layer of solar cells, and a back flexible panel (7) stacked together, characterized in that, It also includes a protective layer, which includes multiple protective transparent cover plates (3) arranged in a matrix, with equidistant gaps between adjacent protective transparent cover plates (3). The battery cell layer includes multiple battery cell units (5) arranged in a matrix, with at least one battery cell unit (5) correspondingly disposed below each protective transparent cover plate (3). A front adhesive film layer (2) is provided between the front flexible panel (1) and the protective layer, a middle adhesive film layer (4) is provided between the protective layer and the battery cell layer, and a back adhesive film layer (6) is provided between the battery cell layer and the back flexible panel (7). The front adhesive film layer (2), the middle adhesive film layer (4) and the back adhesive film layer (6) are hot-melted to form a total adhesive film layer (100) in which a protective transparent cover plate (3) and a battery cell unit (5) are embedded.

2. A flexible solar panel module according to claim 1, characterized in that, The protective transparent cover (3) is specifically made of glass.

3. A flexible solar panel module according to claim 2, characterized in that, The glass cover is specifically high-alumina tempered glass and / or physically semi-tempered glass.

4. A flexible solar panel module according to claim 1, characterized in that, The battery cell unit (5) specifically adopts P-type PERC battery cell, N-type TOPCon battery cell and / or BC battery cell.

5. A flexible solar panel module according to claim 1, characterized in that, The front adhesive film layer (2), the middle adhesive film layer (4), and the back adhesive film layer (6) are all made of POE material, and their basis weight is greater than 400g / m³. 2 .

6. A flexible solar panel module according to claim 1, characterized in that, The front flexible panel (1) is a transparent water-blocking front panel with a thickness of 250-400 μm.

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