A flexible solar panel

Abstract

The utility model relates to the technical field of flexible solar cell panel discloses a kind of flexible solar cell panel, comprising: waterproof layer;Flexible backboard is connected to the one side of waterproof layer;Thin film is connected to the side of flexible backboard away from waterproof layer;And multiple solar cell pieces are connected between flexible backboard and thin film, and each solar cell piece is electrically connected between;Wherein, two adjacent solar cell pieces are spaced apart to form folding area, the folding area has multiple excavated holes, the excavated hole sequentially penetrates waterproof layer, flexible backboard and thin film, when solar cell piece is folded along folding area, the excavated hole on the folding area of adjacent two is staggered with each other.The flexible solar cell panel of the utility model can reduce the thickness of folding, thereby reducing storage space.

Description

Technical Field

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

[0002] Flexible solar panels are an emerging technology in the global solar energy industry. They are made by laying resin-encapsulated amorphous silicon, with the main photoelectric element layer, flat on a substrate made of flexible material. Currently, when flexible solar panels are folded, they form arc-shaped sides at the bends, thus occupying a larger thickness and resulting in a larger storage space. If pressure is applied to flatten the arc-shaped sides at the bends of the flexible solar panels, the panels will be damaged. Utility Model Content

[0003] The purpose of this invention is to provide a flexible solar panel that can reduce the thickness of the fold, thereby reducing storage space.

[0004] To achieve the above objectives, this utility model provides a flexible solar panel, comprising:

[0005] Waterproof layer;

[0006] A flexible backsheet is attached to one side of the waterproof layer;

[0007] A thin film is attached to the side of the flexible backsheet away from the waterproof layer; and

[0008] Multiple solar cells are connected between the flexible backsheet and the thin film, and the solar cells are electrically connected to each other.

[0009] In this configuration, two adjacent solar cells are spaced apart to form a folded area. The folded area has multiple holes that sequentially penetrate the waterproof layer, the flexible backsheet, and the thin film. When the solar cell is folded along the folded area, the holes on two adjacent folded areas are staggered.

[0010] In some embodiments, the waterproof layer is a waterproof fabric layer.

[0011] In some embodiments, the film is a PET film or an ETFE film.

[0012] In some embodiments, the distance between two adjacent holes is equal to the length of the hole.

[0013] In some embodiments, the width of the cutout is smaller than the width of the folded area.

[0014] In some embodiments, the folded regions are parallel to each other.

[0015] In some embodiments, the folding area includes a first folding area and a second folding area, wherein the first folding area and the second folding area are perpendicular to each other.

[0016] In some embodiments, an adhesive film is included, wherein the waterproof layer, the flexible backsheet, the solar cell, and the thin film are bonded together in pairs via the adhesive film.

[0017] In some embodiments, the cutout is a rounded rectangle.

[0018] In some embodiments, a ribbon cable is included, through which the solar cells are connected in series or in parallel.

[0019] This invention provides a flexible solar panel, which has the following advantages compared with the prior art:

[0020] A flexible backsheet is connected to one side of the waterproof layer, and a thin film is connected to the side of the flexible backsheet away from the waterproof layer. Multiple solar cells are connected between the flexible backsheet and the thin film, and the solar cells are electrically connected to each other. Adjacent solar cells are spaced apart to form a folded area. The folded area has multiple perforations that sequentially penetrate the waterproof layer, the flexible backsheet, and the thin film. When a solar cell is folded along the folded area, the perforations on adjacent folded areas are staggered. In this way, the arc-shaped side of one folded area can be accommodated in the perforations of another folded area, reducing the thickness of the fold and thus reducing storage space. Attached Figure Description

[0021] Figure 1 A schematic diagram of the first unfolded structure of a flexible solar panel provided in an embodiment of this utility model.

[0022] Figure 2 for Figure 1 Enlarged cross-sectional view of the structure along direction A.

[0023] Figure 3 This is a first folded enlarged structural diagram of the flexible solar panel provided in an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the second unfolded structure of the flexible solar panel provided in an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the second folded enlarged structure of the flexible solar panel provided in an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the third unfolded structure of the flexible solar panel provided in an embodiment of the present invention.

[0027] Figure 7 This is an enlarged schematic diagram of the third fold structure of the flexible solar panel provided in an embodiment of the present invention.

[0028] Figure 8 This is an enlarged schematic diagram of the fourth fold structure of the flexible solar panel provided in an embodiment of the present invention.

[0029] Figure 9 This is a schematic diagram of the fourth unfolded structure of the flexible solar panel provided in an embodiment of the present invention.

[0030] Figure 10 This is an enlarged schematic diagram of the fifth fold structure of the flexible solar panel provided in an embodiment of the present invention.

[0031] In the diagram: 100, flexible solar panel; 1, waterproof layer; 2, flexible backsheet; 3, thin film; 4, solar cell; 5, folding area; 5a, first folding area; 5b, second folding area; 51, perforation. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0033] It should be understood that in the description of this application, the terms "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. That is, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, unless otherwise stated, "a plurality of" means two or more.

[0034] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0035] like Figures 1-10 As shown, the flexible solar panel 100 of this utility model embodiment includes a waterproof layer 1, a flexible back sheet 2, a thin film 3, and multiple solar cells 4.

[0036] The flexible backsheet 2 is connected to one side of the waterproof layer 1. The thin film 3 is connected to the side of the flexible backsheet 2 away from the waterproof layer 1. Multiple solar cells 4 are connected between the flexible backsheet 2 and the thin film 3, and the solar cells 4 are electrically connected to each other.

[0037] In this embodiment, two adjacent solar cells 4 are spaced apart to form a folding area 5. The folding area 5 has multiple holes 51, which pass through the waterproof layer 1, the flexible back sheet 2 and the film 3 in sequence. When the solar cell 4 is folded along the folding area 5, the holes 51 on two adjacent folding areas 5 are staggered.

[0038] Based on the above structural configuration, when the solar cell 4 is folded along the folding area 5, the arc-shaped side of one folding area 5 will be housed in the hole 51 of the other folding area 5, which can reduce the thickness of the fold and thus reduce the storage space.

[0039] like Figure 1 and Figure 3 As shown, in one specific embodiment, the flexible solar panel 100 has nine folding areas 5. When folded, the first, third, fifth, seventh and ninth folding areas 5 from top to bottom fold in one direction, and the second, fourth, sixth and eighth folding areas 5 from top to bottom fold in another direction. In this way, the thickness of the fold is reduced and the folding structure is made compact.

[0040] like Figure 2 As shown, in some embodiments, the waterproof layer 1 is a waterproof fabric layer. This provides a waterproof effect and allows it to be folded, effectively protecting the back of the flexible back panel 2.

[0041] like Figure 2 As shown, in some embodiments, the film 3 is a PET film or an ETFE film. Thus, the film 3 has high light transmittance, protecting the front side of the flexible backsheet 2 and the solar cell 4, enabling the solar cell 4 to generate electricity normally.

[0042] like Figure 1 As shown, in some embodiments, the spacing between two adjacent cutouts 51 is equal to the length of the cutout 51. In this way, the arc-shaped side of one folding area 5 can be completely accommodated in the cutout 51 of the other folding area 5.

[0043] like Figure 1 As shown, in some embodiments, the width of the perforation 51 is smaller than the width of the folded area 5. This allows the solar cell 4 to be enclosed by the flexible backsheet 2 and the thin film 3, preventing the solar cell 4 from being exposed to air.

[0044] like Figure 4 and Figure 6 As shown, in some embodiments, the folded areas 5 are parallel to each other.

[0045] like Figure 4 and Figure 5 As shown, in one specific embodiment, the flexible solar panel 100 has three folding areas 5. When folded, the second folding area 5 from left to right is folded in one direction. After the first and third folding areas 5 from left to right are joined together, the first and third folding areas 5 are folded in the same direction.

[0046] like Figure 6 and Figure 7 As shown, in one specific embodiment, the flexible solar panel 100 has three folding areas 5. When folding, the first and third folding areas 5 from left to right are folded first, and then the second folding area 5 from left to right is folded.

[0047] like Figure 6 and 8 As shown, in one specific embodiment, the flexible solar panel 100 has three folding areas 5, which are folded sequentially from left to right during folding.

[0048] like Figure 9 and 10 As shown, in some embodiments, the folding area 5 includes a first folding area 5a and a second folding area 5b, wherein the first folding area 5a and the second folding area 5b are perpendicular to each other.

[0049] In one specific embodiment, the flexible solar panel 100 has a first folding area 5a and five second folding areas 5b. When folding, the first folding area 5a is folded first, and then the first, third and fifth second folding areas 5b from left to right are folded in one direction, and the second and fourth second folding areas 5b from left to right are folded in another direction. In this way, the thickness of the fold is reduced and the folding structure is made compact.

[0050] In some embodiments, the waterproof layer 1, flexible backsheet 2, solar cell 4, and thin film 3 are bonded together in pairs via an adhesive film. For example, an EVA adhesive film is used.

[0051] like Figure 1 As shown, in some embodiments, the cutout 51 is a rounded rectangle. This reduces stress concentration in the cutout 51 during the folding process of the folding area 5, minimizing damage to the folding area 5 during folding.

[0052] In some embodiments, ribbon cables are included, with the individual solar cells 4 connected in series or parallel via these cables. Thus, the ribbon cables pass through folded areas during arrangement, and folding the cables does not affect normal use.

[0053] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A flexible solar panel, characterized in that, include: Waterproof layer; A flexible backsheet is attached to one side of the waterproof layer; A thin film is attached to the side of the flexible backsheet away from the waterproof layer. as well as Multiple solar cells are connected between the flexible backsheet and the thin film, and the solar cells are electrically connected to each other. In this configuration, two adjacent solar cells are spaced apart to form a folded area. The folded area has multiple holes that sequentially penetrate the waterproof layer, the flexible backsheet, and the thin film. When the solar cell is folded along the folded area, the holes on two adjacent folded areas are staggered.

2. The flexible solar panel according to claim 1, characterized in that, The waterproof layer is a waterproof fabric layer.

3. The flexible solar panel according to claim 1, characterized in that, The film is a PET film or an ETFE film.

4. The flexible solar panel according to claim 1, characterized in that, The distance between two adjacent holes is equal to the length of the hole.

5. The flexible solar panel according to claim 1, characterized in that, The width of the cut hole is smaller than the width of the folded area.

6. The flexible solar panel according to claim 1, characterized in that, The folded areas are parallel to each other.

7. The flexible solar panel according to claim 1, characterized in that, The folding area includes a first folding area and a second folding area, wherein the first folding area and the second folding area are perpendicular to each other.

8. The flexible solar panel according to claim 1, characterized in that, The waterproof layer, the flexible backsheet, the solar cell, and the thin film are bonded together in pairs via the adhesive film.

9. The flexible solar panel according to claim 1, characterized in that, The hole is a rounded rectangle.

10. The flexible solar panel according to claim 1, characterized in that, Includes wiring, through which the solar cells are connected in series or in parallel.

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