Mobile double-sided power generation solar charging bag
By using a double-sided solar cell design and high-strength packaging technology, the structural instability and low efficiency of single-sided solar folding panels have been solved, resulting in more efficient and stable charging and portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-16
- Publication Date
- 2026-03-10
AI Technical Summary
Existing single-sided foldable solar panels with aluminum-framed glass encapsulation suffer from problems such as cell misalignment, structural instability, low single-sided charging efficiency, fragile glass, and inconvenience in carrying.
It adopts a double-sided power generation cell design, with transparent PET covering and laminating on both sides of the cell. Combined with exquisite fabric sewing and a 4-fold design, it has multiple angle adjustment functions. The cell is protected by high-strength double-layer PET lamination and encapsulation. EVA material sealing layer and PET protective film are heat-fused together to increase light transmittance and waterproof performance.
It improves the power generation efficiency of the battery cells, enhances structural stability and portability, and addresses the issues of easily damaged battery cells and weathered junction boxes, achieving a more efficient and stable charging effect.
Smart Images

Figure CN223987066U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic applications, specifically a mobile bifacial solar charging pack. Background Technology
[0002] Solar folding charging panels are environmentally friendly charging devices that utilize solar energy to charge the 12V lead-acid batteries inside electric vehicles, cars, trucks, RVs, and yachts. With the development of new energy technologies, single-sided solar folding panels with aluminum frames and glass encapsulation are increasingly widely used in vehicles with 12V lead-acid batteries. However, existing single-sided solar folding panels with aluminum frames and glass encapsulation mainly consist of an aluminum frame encapsulating a glass laminate. In practical use, similar mobile double-sided solar charging packs still have many defects, such as: the battery cells of existing solar charging devices are prone to displacement, and the overall structure is not stable enough; single-sided solar folding charging panels can only be charged from one side exposed to sunlight, resulting in poor charging effect and low efficiency; the glass-encapsulated solar panels on the solar folding charging panels are easily broken and damaged, making them inconvenient to carry. Utility Model Content
[0003] The purpose of this invention is to provide a mobile bifacial solar charging pack to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a mobile bifacial solar charging pack, comprising a fabric characterized in that: several sets of frames are fixedly installed inside the fabric, a charging pack is fixedly installed inside the several sets of frames, a base plate frame is provided inside the charging pack, and a battery cell is fixedly installed at one end of the base plate frame.
[0005] When using the portable bifacial solar charging pack, under sufficient sunlight, the bifacial solar panels generate current and voltage, which can be directly charged via a USB interface to compatible electronic products. It is convenient to carry and features a bifacial solar cell design with transparent PET laminated over both sides, resulting in higher and more efficient cells compared to traditional single-sided solar power generation. Made with fine fabric and a 4-fold design, it is lighter and more portable than traditional designs. It also offers multiple angle adjustments (20°, 30°, 40°, 50°, 60°, 70°) to fully meet the needs of different sunlight conditions.
[0006] As a preferred embodiment of this utility model, a bracket is fixedly installed at the center of one side of the frame, an auxiliary rod is fixedly installed at the center of one side of the bracket, and the other end of the auxiliary rod is slidably installed on one side of the frame.
[0007] As a preferred embodiment of this utility model, a sealing layer is fixedly installed at both ends of the battery cell, and a protective film is fixedly installed at one end of each of the two sets of sealing layers, with the edge of the protective film connected to the fabric.
[0008] As a preferred technical solution of this utility model, the sealing layer is made of EVA material, the protective film is made of PET material, and the sealing layer and the protective film are bonded by hot melt. By setting the protective film, the protective film is made of EVA high light transmittance transparent protective film, which improves the light transmittance of the battery cell, thereby improving the power generation efficiency of the battery cell and solving the defect of low power generation conversion efficiency of the original battery cell.
[0009] As a preferred technical solution of this utility model, several sets of hooks are fixedly installed at both ends of the fabric, and several sets of Velcro are fixedly installed on both sides of the fabric; by setting Velcro, it can be unfolded to charge on both sides at the same time, or it can be folded for storage, making it convenient to use.
[0010] As a preferred technical solution of this utility model, a USB interface is fixedly installed on one edge of the fabric, the USB interface is connected to the charging pack, and a sealing pack is fixedly installed at the center of one end of the fabric; by setting the USB interface, adopting the process of directly sealing the wiring at the output port, and adding a waterproof rubber ring to the inner wall of the junction box, the defects of the original junction box that is not waterproof and is prone to weathering are improved.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. When using the portable double-sided solar charging pack, under sufficient sunlight, the double-sided solar panels generate current and voltage, which can be directly charged to existing electronic products that meet the output voltage and current through the USB interface. It is convenient to carry. It adopts a double-sided solar cell design, with transparent PET covering and laminating on both sides of the cells, making the cells more efficient and powerful than traditional single-sided solar cells. It is made of fine fabric and has a 4-fold design, which is lighter than traditional designs. It has multiple angle adjustment functions such as 20°, 30°, 40°, 50°, 60°, and 70° to fully meet the usage needs in different sunlight scenarios.
[0013] 2. Compared to conventional solar cell bags, this mobile double-sided solar charging bag uses an integrated hot-pressing process with materials such as PET, EVA, double-sided solar cells, substrate frame, and fabric. It uses high-strength double-layer PET lamination to protect the double-sided solar cells. The encapsulation of laminated components and sewn fabric makes the components more robust and the cells less prone to movement and damage, thus improving the shortcomings of the original solar panel cells that are not robust. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the unfolded front view of the present invention;
[0015] Figure 2 This is a schematic diagram of the unfolded rear view structure of this utility model;
[0016] Figure 3 This is a partially enlarged structural schematic diagram of the present invention;
[0017] Figure 4 This is a cross-sectional view of the charging pack in this utility model;
[0018] Figure 5 This is a side view of the unfolded structure of this utility model.
[0019] In the diagram: 1. Fabric; 2. Frame; 3. Charging pack; 31. Base plate frame; 32. Battery cell; 33. Sealing layer; 34. Protective film; 4. Hook and loop; 5. Velcro; 6. USB interface; 7. Stand; 8. Auxiliary rod; 9. Sealing pack. Detailed Implementation
[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0021] Example 1
[0022] like Figure 1 - Figure 5 As shown, the present invention proposes a mobile bifacial solar charging pack, which includes a fabric 1, several sets of frames 2 are fixedly installed inside the fabric 1, a charging pack 3 is fixedly installed inside the several sets of frames 2, a base plate frame 31 is provided inside the charging pack 3, and a battery cell 32 is fixedly installed inside the base plate frame 31.
[0023] A bracket 7 is fixedly installed at the center of one side of the frame 2, and an auxiliary rod 8 is fixedly installed at the center of one side of the bracket 7. The other end of the auxiliary rod 8 is slidably installed on one side of the frame 2.
[0024] Both ends of the battery cell 32 are fixedly installed with a sealing layer 33, and a protective film 34 is fixedly installed at one end of each of the two sets of sealing layers 33. The edge of the protective film 34 is connected to the fabric 1.
[0025] The working principle of a mobile bifacial solar charging pack based on Embodiment 1 is as follows: When using the mobile bifacial solar charging pack, under sufficient sunlight, the bifacial solar panels generate current and voltage, which can be directly charged to existing electronic products that meet the output voltage and current through the USB interface 6. It is convenient to carry. It adopts a bifacial solar cell 32 design, with transparent PET covering and laminating on both sides of the solar cell 32, making the efficiency of the solar cell 32 higher and stronger than that of traditional single-sided solar power generation. It is made of exquisite fabric 1 and has a 4-fold design, which is lighter than the traditional design. It has multiple angle adjustment functions such as 20°, 30°, 40°, 50°, 60° and 70° to fully meet the usage needs in different sunlight scenarios.
[0026] Example 2
[0027] like Figure 1 - Figure 5 As shown, the present invention proposes a mobile bifacial solar charging pack. Compared with Embodiment 1, this embodiment further includes: the sealing layer 33 is made of EVA material, the protective film 34 is made of PET material, the sealing layer 33 and the protective film 34 are bonded by hot melt, several sets of hooks 4 are fixedly installed at both ends of the fabric 1, several sets of Velcro 5 are fixedly installed on both sides of the fabric 1, a USB interface 6 is fixedly installed at one edge of the fabric 1, the USB interface 6 is connected to the charging pack 3, and a sealing bag 9 is fixedly installed at the center of one end of the fabric 1.
[0028] In this embodiment, as shown in Figure 4, by providing a protective film 34, which is an EVA high-transmittance transparent protective film 34, the transmittance of the battery cell 32 is improved, thereby increasing the power generation efficiency of the battery cell 32 and solving the defect of low power generation conversion efficiency of the original battery cell 32; Figure 2 As shown, thanks to the Velcro 5, it can be unfolded for simultaneous charging on both sides, or folded for storage, making it convenient to use; Figure 3 As shown, by setting up a USB interface 6, adopting a process of directly sealing the wiring at the output port, and adding a waterproof rubber ring to the inner wall of the junction box, the defects of the original junction box that is not waterproof and is prone to weathering are improved.
[0029] The above specific embodiments are merely several preferred technical solutions of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A mobile double-sided power generation solar charging bag comprising cloth (1), characterized in that: The inside of the cloth (1) is fixedly installed with several groups of frames (2), the inside of the several groups of frames (2) is fixedly installed with charging bags (3), the inside of the charging bag (3) is provided with a substrate frame (31), and the inside of the substrate frame (31) is fixedly installed with a battery piece (32).
2. The mobile dual-sided electricity-generating solar charging pack of claim 1, wherein: A support (7) is fixedly installed at the center of one side of the frame (2), an auxiliary rod (8) is fixedly installed at the center of one side of the support (7), and the other end of the auxiliary rod (8) is slidingly installed on one side of the frame (2).
3. A mobile dual-sided electricity-generating solar charging pack according to claim 2, wherein: Both ends of the battery piece (32) are fixedly installed with sealing layers (33), one end of the two groups of sealing layers (33) is fixedly installed with protective films (34), and the edge of the protective film (34) is connected with the cloth (1).
4. The mobile bifacial electricity generating solar charging pack of claim 3, wherein: The sealing layer (33) is made of EVA material, the protective film (34) is made of PET material, and the sealing layer (33) and the protective film (34) are hot melt bonded.
5. The mobile dual-sided electricity-generating solar charging pack of claim 1, wherein: The two ends of the cloth (1) are fixedly installed with several groups of hooks (4), and the two sides of the cloth (1) are fixedly installed with several groups of magic tapes (5).
6. The mobile dual-sided electricity-generating solar charging pack of claim 1, wherein: A USB interface (6) is fixedly installed at the edge of one side of the cloth (1), the USB interface (6) is connected with the charging bag (3), and a sealing bag (9) is fixedly installed at the center of one end of the cloth (1).