Layer structure of photovoltaic backpack product assembly

Abstract

This utility model discloses a layer structure of a photovoltaic backpack product component, relating to the field of photovoltaic backpack technology, including: a photovoltaic backpack component surface layer; the edge of the photovoltaic backpack component surface layer is provided with nylon reinforced edging, and the edging is provided with sewing holes spaced apart; the inner side of the photovoltaic backpack component surface layer is respectively provided with an intelligent controller and dual output interfaces; the photovoltaic backpack component surface layer is composed of an upper protective layer, a first EVA film layer, a battery cell, a second EVA film layer and a lower protective layer, and the upper protective layer, the first EVA film layer, the battery cell, the second EVA film layer and the lower protective layer are vacuum laminated to form an integrated flexible structure; it solves the technical problems of traditional photovoltaic backpacks that mostly use rigid glass to encapsulate components, which have problems such as heavy weight, poor flexibility and difficulty in sewing, as well as insufficient waterproofness, poor interlayer bonding and low output efficiency.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic backpack technology, specifically to the layer structure of photovoltaic backpack product components. Background Technology

[0002] The photovoltaic backpack can store items and provide power when it is not possible to replenish power in time in the wild. The photovoltaic backpack can convert solar energy into electrical energy through solar panels, store it, and provide it to the staff for use. In the wild and other uninhabited environments, this device can provide item storage and backup power, while reducing the physical exertion of the staff.

[0003] Compared to existing photovoltaic backpacks, there are still the following drawbacks: Traditional photovoltaic backpacks mostly use rigid glass to encapsulate components, which results in problems such as heavy weight, poor flexibility and difficulty in sewing. At the same time, they also have defects such as insufficient waterproofing, poor interlayer bonding, and low output efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a layer structure for photovoltaic backpack product components, and to solve the following technical problems: Traditional photovoltaic backpacks mostly use rigid glass to encapsulate components, which have problems such as heavy weight, poor flexibility and difficulty in sewing. At the same time, they also have defects such as insufficient waterproofness, poor interlayer bonding force and low output efficiency.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] The photovoltaic backpack product component has a layered structure, including: a photovoltaic backpack component surface layer; the edge of the photovoltaic backpack component surface layer is provided with nylon reinforced edging, and the edging is provided with sewn holes spaced apart; the inner side of the photovoltaic backpack component surface layer is provided with an intelligent controller and dual output interfaces respectively.

[0007] As a further embodiment of this utility model: the surface layer of the photovoltaic backpack component is composed of an upper protective layer, a first EVA film layer, a battery cell, a second EVA film layer and a lower protective layer.

[0008] As a further embodiment of this utility model: the upper protective layer, the first EVA film layer, the battery cell, the second EVA film layer and the lower protective layer are vacuum laminated together to form an integrated flexible structure.

[0009] As a further embodiment of this utility model: the upper protective layer, the first EVA film layer, the battery cell, the second EVA film layer and the lower protective layer are stacked and laid in sequence.

[0010] As a further embodiment of this invention, the battery cells are welded into a 3*6 array.

[0011] As a further embodiment of this utility model: a silicone sealing strip is provided on the inner edge of the surface layer of the photovoltaic backpack component, with the inner side of the sewing hole.

[0012] As a further embodiment of this invention: the photovoltaic backpack component surface layer is sewn onto the surface of the nylon backpack using nylon thread.

[0013] The beneficial effects of this utility model are:

[0014] 1. The laminated structure allows the components to maintain >85% light transmittance and >IP67 waterproof rating while remaining flexible; the CDPC-B bottom layer also has electromagnetic shielding function; the modular design supports quick replacement of damaged units; the controller integrates MPPT algorithm with a conversion efficiency of >93%. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a front view cross-sectional structural diagram of the connection between the surface layer and the sewing hole of the photovoltaic backpack component of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the connection between the upper protective layer and the first EVA film layer of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the photovoltaic backpack component surface layer and the sewing hole connection of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall connection structure of the battery cell of this utility model.

[0020] In the diagram: 1. Photovoltaic backpack module surface layer; 101. Upper protective layer; 102. First EVA film layer; 103. Solar cell; 104. Second EVA film layer; 105. Lower protective layer; 2. Sewing hole; 3. Silicone sealing strip; 4. Smart controller; 5. Dual output interface. Detailed Implementation

[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figure 1 and Figure 3As shown, this utility model is a layer structure of a photovoltaic backpack product component, specifically designed to increase waterproofness, strengthen interlayer bonding, and improve output efficiency. It includes a photovoltaic backpack component surface layer 1; the edge of the photovoltaic backpack component surface layer 1 is provided with nylon reinforced edging, and the edging is provided with sewing holes 2 spaced apart; the inner side of the photovoltaic backpack component surface layer 1 is provided with an intelligent controller 4 and dual output interfaces 5.

[0024] In this embodiment, preferably, a silicone sealing strip 3 is provided inside the sewing hole 2 at the inner edge of the photovoltaic backpack component surface layer 1.

[0025] In this embodiment, preferably, the photovoltaic backpack component surface layer 1 is sewn onto the surface of the nylon backpack with nylon thread.

[0026] In summary, the photovoltaic backpack component surface layer 1 is surrounded by a nylon reinforcing edging with a width of 3-5mm. Sewing holes 2 are spaced 8-10mm apart along the edging, allowing the photovoltaic backpack component surface layer 1 to be sewn entirely to the nylon backpack surface using nylon thread, with a 5mm bending allowance. The photovoltaic backpack component surface layer 1 also houses a smart controller 4 and dual output interfaces 5. The smart controller 4 supports the QO3.0 fast charging protocol; the dual output interfaces 5 are USB Type-C, with 5V / 3A and 9V / 2A adaptive adjustment. The photovoltaic backpack component surface layer 1, smart controller 4, and dual output interfaces 5 are connected via conductive fabric wiring. A silicone sealing strip 3 is provided at the edge of the photovoltaic backpack component surface layer 1 to increase the seal at the connection point with the nylon backpack.

[0027] Example 2

[0028] Reference Figure 1 , Figure 2 and Figure 4 The image shows the second embodiment of this utility model, which is formed by vacuum lamination of flexible materials to reduce the overall weight and increase flexibility. The photovoltaic backpack component surface layer 1 is composed of an upper protective layer 101, a first EVA film layer 102, a battery cell 103, a second EVA film layer 104, and a lower protective layer 105.

[0029] In this embodiment, preferably, the upper protective layer 101, the first EVA film layer 102, the battery cell 103, the second EVA film layer 104, and the lower protective layer 105 are vacuum laminated together to form an integrated flexible structure.

[0030] In this embodiment, preferably, the upper protective layer 101, the first EVA film layer 102, the battery cell 103, the second EVA film layer 104 and the lower protective layer 105 are stacked sequentially.

[0031] In this embodiment, preferably, the battery cells 103 are welded into a 3*6 array.

[0032] In summary, the upper protective layer 101, the first EVA film layer 102, the battery cell 103, the second EVA film layer 104, and the lower protective layer 105 are formed into an integrated flexible structure through a vacuum lamination process (120℃-140℃, -50KPa to -30KPa, 10min-15min). The overall thickness is ≤1.2mm, and the bending radius is ≥50mm. Specifically, the upper protective layer 101 is a CDPC transparent composite board (thickness 0.2mm-0.5mm); the first EVA film layer 102 is 0.3mm-0.5mm thick; the battery cell 103 is 100μm-200μm thick, with a conversion efficiency ≥22%; and the lower protective layer 105 is a CDPC-B double-sided black composite board.

[0033] Furthermore, the CDPC board is a polycarbonate / nano-silica composite material; the solar cell 103 is made of monocrystalline silicon, adopts an inverted pyramid textured structure, and is coated with an anti-reflective film; 18 156mm*156mm PERC solar cells 103 are wired together to form a 3*6 array, and 0.3mm CDPC board, 0.5mm EVA, solar cell 103, 0.5mm EVA and 0.4mm CDPC-B board are laid in sequence and vacuum laminated at 135℃ and -30KPa for 15 minutes.

[0034] Example 3

[0035] This embodiment is obtained by combining Embodiment 1 and Embodiment 2.

[0036] The above-mentioned flexible integrated structure is formed by vacuum lamination of the upper protective layer 101, the first EVA film layer 102, the battery cell 103, the second EVA film layer 104 and the lower protective layer 105, which can maintain a light transmittance of >85% and a waterproof rating of >IP67.

[0037] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A layered structure for a photovoltaic backpack product component, characterized in that, include: Photovoltaic backpack component surface layer (1); the edge of the photovoltaic backpack component surface layer (1) is provided with nylon reinforced edging, and the edging is provided with sewing holes (2) spaced apart. The inner side of the photovoltaic backpack component surface layer (1) is provided with a smart controller (4) and a dual output interface (5).

2. The layer structure of the photovoltaic backpack product component according to claim 1, characterized in that, The photovoltaic backpack component surface layer (1) is composed of an upper protective layer (101), a first EVA film layer (102), a battery cell (103), a second EVA film layer (104), and a lower protective layer (105).

3. The layer structure of the photovoltaic backpack product component according to claim 2, characterized in that, The upper protective layer (101), the first EVA film layer (102), the battery cell (103), the second EVA film layer (104), and the lower protective layer (105) are formed into an integrated flexible structure by vacuum lamination.

4. The layer structure of the photovoltaic backpack product component according to claim 2, characterized in that, The upper protective layer (101), the first EVA film layer (102), the battery cell (103), the second EVA film layer (104), and the lower protective layer (105) are stacked sequentially.

5. The layer structure of the photovoltaic backpack product component according to claim 4, characterized in that, The battery cells (103) are welded into a 3*6 array.

6. The layer structure of the photovoltaic backpack product component according to claim 1, characterized in that, The inner edge of the photovoltaic backpack component surface layer (1) is provided with a silicone sealing strip (3) inside the sewing hole (2).

7. The layer structure of the photovoltaic backpack product component according to claim 6, characterized in that, The photovoltaic backpack component surface layer (1) is sewn onto the surface of the nylon backpack with nylon thread.

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