Flexible winding solar charging system for electric vehicle

Abstract

The flexible winding solar charging system comprises a charging wire, a charging gun and a solar charging module, the electric energy output end of the solar charging module is connected with one end of the charging wire, and the charging gun is arranged at the other end of the charging wire; the solar charging module is arranged at the top of the automobile, the solar charging module adopts a flexible solar cell and is provided with a winding device, the flexible solar cell is arranged in the winding device, and the winding device is used for winding and unfolding the flexible solar cell. The technical effects are that the flexible solar cell is adopted to manufacture the windable power generation assembly, the installation is simple, the use is convenient, the winding and unwinding are free, the appearance is beautiful after the winding, the device can be perfectly integrated with the vehicle, and the normal use of the vehicle is not influenced; after being unfolded, the solar car cover can replace a car cover to achieve the sun-shading and dust-proof functions, the structure is safe, no damage is caused to a car, and meanwhile the flexible solar cell generates electricity and can charge a car-mounted energy storage battery and a power battery.

Description

Technical Field

[0001] The invention relates to the technical field of solar charging, and in particular to a flexible winding solar charging system for electric vehicles. Background Art

[0002] At present, solar photovoltaic modules mostly use PVC backboard and PET front board and crystalline silicon cell package, which can only be laid flat or bent at a small angle, and cannot be bent 360 degrees and rolled onto a reel for use, and cannot be retracted freely. Usually, they cannot be made into on-board charging modules to charge with solar energy; when the vehicle is parked outdoors, especially in summer, the strong sunlight will damage the vehicle body and wheels. Some car owners will use traditional car covers or temporary carports to protect the car, but traditional car covers or temporary carports only have the functions of sunshade, windproof and rainproof, and cannot make full use of sunlight. Summary of the invention

[0003] To this end, the present invention provides a flexible winding solar charging system for electric vehicles to solve the problems in the prior art that traditional solar cells are difficult to install and store and are not easy to be set up and used in vehicles.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] According to a first aspect of the present invention, a flexible winding solar charging system for electric vehicles comprises a charging cable, a charging gun and a solar charging module, wherein the power output end of the solar charging module is connected to one end of the charging cable, and the other end of the charging cable is provided with the charging gun;

[0006] The solar charging module is arranged on the top of the car, the solar charging module adopts a flexible solar cell and is provided with a winding device, the flexible solar cell is arranged in the winding device, and the winding device is used to roll up and unfold the flexible solar cell;

[0007] The solar charging module includes a roof charging module and a side charging module. The roof charging module is arranged on the top of the car along the width direction of the car, and the side charging module is arranged on the top of the car along the length direction of the car. One side charging module is provided at each end of the roof charging module.

[0008] Furthermore, the roof charging module and the vehicle side charging module both adopt a self-retracting device.

[0009] Further, the vehicle-side charging module includes a first shell, a first reel, a first spring, a first end cover, a flexible solar cell and a first hanging portion, the first reel is rotatably arranged in the first shell, and the first springs are respectively arranged at both ends of the first reel;

[0010] The flexible solar cell is wound on the first reel, one end of the flexible solar cell in the length direction is connected to the first reel, the other end of the flexible solar cell is provided with the first hanging portion, and the first hanging portion is buckled on the first shell; the first end covers are respectively provided at both ends of the first shell.

[0011] Further, the roof charging module includes a second shell, a second reel, a second spring, a second end cover, a flexible solar cell and a second hanging portion, the second reel is rotatably arranged in the second shell, and the second springs are respectively arranged at both ends of the second reel;

[0012] The number of the flexible solar cells is two, the two flexible solar cells are arranged overlapping each other and wound on the second reel, one end of each flexible solar cell in the length direction is connected to the second reel, and the other end of each flexible solar cell is respectively connected to one of the second hanging parts, and the second hanging part is buckled on the second shell; the second end covers are respectively provided at both ends of the second shell.

[0013] Furthermore, the roof charging module includes a second shell, a second reel, a second spring, a second end cover, a flexible solar cell and a second hanging portion, the number of the second reels is two, the two second reels are both rotatably arranged in the second shell, and the two second reels are arranged parallel to each other, and the two ends of each second reel are respectively provided with a second spring;

[0014] The number of the flexible solar cells is two, and the two flexible solar cells are respectively wound on two second winding shafts, one end of each flexible solar cell in the length direction is respectively connected to the corresponding second winding shaft, and the other end of each flexible solar cell is respectively connected to a second hanging part, and the second hanging part is buckled on the second shell; the second end covers are respectively provided at both ends of the second shell.

[0015] Furthermore, the first hanging portion and the second hanging portion are both provided with hanging grooves or hooks along their length directions.

[0016] Furthermore, a voltage converter is provided in the charging gun.

[0017] Furthermore, the flexible solar cell comprises a top water-blocking layer, a thin-film battery and a bottom water-blocking layer, and the thin-film battery is arranged between the top water-blocking layer and the bottom water-blocking layer.

[0018] Furthermore, the top water-blocking layer includes a first water-blocking film and a first packaging film, the bottom water-blocking layer includes a second packaging film, a second water-blocking film and a waterproof fabric, the first water-blocking film, the first packaging film, the thin-film battery, the second packaging film, the second water-blocking film and the waterproof fabric are arranged sequentially from top to bottom, and the thin-film battery can be a flexible CIGS thin-film battery, a flexible CdTe thin-film battery, a flexible GaAs thin-film battery, a flexible perovskite / flexible stacked perovskite thin-film battery, a flexible silicon-based solar cell, a flexible organic solar cell or a flexible nanocrystal chemical solar cell.

[0019] The present invention has the following advantages: flexible solar cells are used to make a rollable power generation component, which is simple to install, easy to use, and can be freely retracted. After being rolled up, it has a beautiful appearance and can be perfectly integrated with the vehicle without affecting the normal use of the vehicle; after being unfolded, it can replace the car cover to play the role of sunshade and dust prevention. The structure is safe and will not cause any damage to the vehicle. At the same time, the flexible solar cells generate electricity, which can charge the on-board energy storage battery and the power battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0022] Figure 1 A schematic structural diagram of a flexible winding solar charging system for an electric vehicle in an unfolded state provided in some embodiments of the present invention.

[0023] Figure 2 A schematic structural diagram of a flexible winding solar charging system for an electric vehicle in a rolled-up state provided in some embodiments of the present invention.

[0024] Figure 3 A vehicle-side charging module of a flexible winding solar charging system for an electric vehicle is provided in some embodiments of the present invention.

[0025] Figure 4A schematic structural diagram of a flexible solar cell of a flexible winding solar charging system for an electric vehicle provided in some embodiments of the present invention.

[0026] In the figure: 1. Automobile, 2. Roof charging module, 3. Vehicle side charging module, 4. Flexible solar cell, 5. Charging cable, 6. Charging gun, 7. First shell, 8. First reel, 9. First spring, 10. First end cover, 11. First hanging part, 12. First water-blocking film, 13. First packaging film, 14. Thin-film battery, 15. Second packaging film, 16. Second water-blocking film, 17. Waterproof fabric. DETAILED DESCRIPTION

[0027] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figures 1 to 4 As shown, a flexible winding solar charging system for electric vehicles in an embodiment of the first aspect of the present invention comprises a charging line 5, a charging gun 6 and a solar charging module, wherein the power output end of the solar charging module is connected to one end of the charging line 5, and the other end of the charging line 5 is provided with a charging gun 6, wherein the charging gun 6 is provided with a voltage converter, and the voltage converter is used to convert the electric energy generated by the solar charging module into a stable voltage matching the on-board energy storage battery or the power battery so as to charge the on-board energy storage battery or the power battery;

[0030] A solar charging module is arranged on the top of a car 1. The solar charging module adopts a flexible solar cell 4 and is provided with a winding device. The flexible solar cell 4 is arranged in the winding device. The winding device is used to wind up and unfold the flexible solar cell 4. After winding up, the entire solar charging module is located on the top of the vehicle and will not affect the normal driving and use of the vehicle. After unfolding, the flexible solar cell 4 can be used to charge the vehicle power battery or the vehicle-mounted energy storage battery, and can also serve as a car cover.

[0031] The technical effect achieved by this embodiment is: a flexible solar cell 4 is used to make a rollable power generation component, which is simple to install, easy to use, and can be freely retracted. After being rolled up, it has a beautiful appearance and can be perfectly integrated with the vehicle without affecting the normal use of the vehicle; after being unfolded, it can replace the car cover to play the role of sunshade and dustproof. The structure is safe and will not cause any damage to the vehicle. At the same time, the flexible solar cell generates electricity, which can charge the on-board energy storage battery and the power battery.

[0032] Example 2

[0033] like Figures 1 to 4 As shown, this embodiment provides another electric vehicle flexible winding solar charging system, whose structure includes all the contents of embodiment 1, and only the different parts are described below.

[0034] In this embodiment, the solar charging module includes a roof charging module 2 and a vehicle side charging module 3. The roof charging module 2 is arranged on the top of the vehicle 1 along the width direction thereof, and the vehicle side charging module 3 is arranged on the top of the vehicle 1 along the length direction thereof. A vehicle side charging module 3 is respectively arranged at both ends of the roof charging module 2 to form an H-shaped structure; both the roof charging module 2 and the vehicle side charging module 3 adopt a self-winding device, and the specific structure and principle of the self-winding device are the same as those of the spring roller blind;

[0035] The roof charging module 2 and the vehicle side charging module 3 are respectively installed on the top of the car 1 through a fixing seat. Specifically, the fixing seat is installed on the top of the car through bolts, and the roof charging module 2 and the vehicle side charging module 3 are respectively connected to the corresponding fixing seat through a card slot.

[0036] In this embodiment, it should be noted that the vehicle-side charging module 3 includes a first shell 7, a first reel 8, a first spring 9, a first end cover 10, a flexible solar cell 4 and a first hanging portion 11. The first reel 8 is rotatably arranged in the first shell 7. Both ends of the first reel 8 are respectively provided with first springs 9. The first reel 9 is a hollow cylindrical structure. The first spring 9 is arranged in the reel. One end of the first spring 9 is connected to the first reel 8, and the other end of the first spring 9 is connected to the first shell 7.

[0037] The flexible solar cell 4 is wound on the first reel 8, one end of the flexible solar cell 4 in the length direction is connected to the first reel 8, and the other end of the flexible solar cell 4 is provided with a first hanging portion 11, and the first hanging portion 11 is buckled on the first shell 7. Specifically, the first shell 7 is provided with a first opening along its length direction, and the first hanging portion 11 is buckled on the first opening; first end covers 10 are respectively provided at both ends of the first shell 7.

[0038] Furthermore, the vehicle-side charging module 3 is used as follows: when unfolding, the first hanging part 11 is manually pulled outward in a direction perpendicular to the first reel 8, and after reaching a certain position, it is fixed to the vehicle body or an auxiliary support. At this time, the first spring 9 is tensioned, and the first hanging part 11 can be hung on the vehicle body or fixed horizontally using a support rod, and the vehicle-side charging module 3 starts to work; when folding, the first hanging part 11 is removed from the vehicle body or the support rod, and the first reel 8 automatically rotates under the tension of the first spring 9 to roll up the flexible solar cell 4 until the first hanging part 11 is reset.

[0039] The technical effect achieved by this embodiment is that the vehicle-side charging modules 3 all adopt a self-winding device with a simple structure, which can quickly realize the winding and unfolding of the flexible solar cell 4.

[0040] Example 3

[0041] like Figures 1 to 4 As shown, this embodiment provides another electric vehicle flexible winding solar charging system, whose structure includes all the contents of embodiment 2, and only the different parts are described below.

[0042] In this embodiment, the roof charging module 2 adopts a single-reel mode. Specifically, the roof charging module 2 includes a second shell, a second reel, a second spring, a second end cover, a flexible solar cell 4 and a second hanging portion. The second reel is rotatably arranged in the second shell, and second springs are respectively arranged at both ends of the second reel. Specifically, the second reel is a hollow cylinder, and the second spring is arranged in the second reel. One end of the second spring is connected to the second reel, and the other end of the second spring is connected to the second shell.

[0043] There are two flexible solar cells 4, which are arranged to overlap each other (i.e., the front side of one flexible solar cell 4 is arranged to face the front side of the other flexible solar cell 4), and are wound on the second reel, and one end of each flexible solar cell 4 in the length direction is connected to the second reel, and the other end of each flexible solar cell 4 is respectively connected to a second hanging part, and the second hanging part is buckled on the second shell. Specifically, the second shell is provided with a second opening along its length direction, and the two second hanging parts are buckled at the second opening; second end covers are respectively provided at both ends of the second shell.

[0044] In this embodiment, it should be noted that both the first hanging portion 11 and the second hanging portion are provided with hanging grooves or hooks along their length directions.

[0045] Furthermore, the roof charging module 2 is used as follows: when unfolding, the two second hanging parts are manually pulled outward in a direction perpendicular to the second scroll, and the two flexible solar cells 4 can be pulled out at the same time. After the flexible solar cells 4 are pulled out completely or to a certain length, one second hanging part is fixed to the front part of the vehicle, and the other second hanging part is fixed to the rear part of the vehicle, and the roof charging module 2 can be unfolded for operation, and the second spring is in a tensioned state at this time; when folding, the two second hanging parts are removed from the vehicle body respectively, and after the two flexible solar cells 4 are overlapped, the second spring can be used to drive the second scroll to rotate to roll up the two flexible solar cells 4 until the second hanging part is reset.

[0046] The technical effect achieved by this embodiment is: the roof charging module 2 adopts a single scroll structure, which can simultaneously control the unfolding and reeling of two flexible solar cells 4. After unfolding, it can cover the entire roof to form a sunshade effect, and at the same time can also use solar energy to generate electricity.

[0047] Example 4

[0048] like Figures 1 to 4 As shown, this embodiment provides another electric vehicle flexible winding solar charging system, whose structure includes all the contents of embodiment 2, and only the different parts are described below.

[0049] In this embodiment, the roof charging module 2 adopts a double-roll structure. Specifically, the roof charging module 2 includes a second shell, a second scroll, a second spring, a second end cover, a flexible solar cell 4 and a second hanging portion. The number of the second scrolls is two, and the two second scrolls are both rotatably arranged in the second shell, and the two second scrolls are arranged parallel to each other. A second spring is respectively provided at both ends of each second scroll. Specifically, the second scroll is a hollow cylinder, and the second spring is arranged in the second scroll. One end of the second spring is connected to the second scroll, and the other end of the second spring is connected to the second shell.

[0050] There are two flexible solar cells 4, which are respectively wound on two second reels. One end of each flexible solar cell 4 in the length direction is respectively connected to the corresponding second reel, and the other end of each flexible solar cell 4 is respectively connected to a second hanging part, which is buckled on the second shell. Specifically, the second shell is provided with two second openings along its length direction, and the second openings are arranged one-to-one corresponding to the second reel, and each second hanging part is buckled at the second opening corresponding to it; second end covers are respectively provided at both ends of the second shell.

[0051] In this embodiment, it should be noted that both the first hanging portion 11 and the second hanging portion are provided with hanging grooves or hooks along their length directions.

[0052] Furthermore, the roof charging module 2 is used as follows: when unfolding, first manually pull a second hanging part outward in a direction perpendicular to the corresponding second reel, and after the corresponding flexible solar cell 4 is pulled out completely or to a certain length, fix the second hanging part to the front part of the vehicle, and then fix another second hanging part to the rear part of the vehicle in the same way, so that the roof charging module 2 can be fully unfolded; when rolling up, after removing the second hanging parts from the vehicle body one by one, the second spring is used to drive the second reel to rotate to roll up the corresponding flexible solar cell.

[0053] The technical effect achieved by this embodiment is: the roof charging module 2 adopts a double-roll structure, and the corresponding two flexible solar cells can be operated independently of each other. One person can complete the unfolding and reeling operations, which is more convenient to use. When fully unfolded, the entire roof can be covered to form a sunshade effect, and solar energy can also be used to generate electricity.

[0054] Example 5

[0055] like Figures 1 to 4 As shown, this embodiment provides another electric vehicle flexible winding solar charging system, whose structure includes all the contents of embodiment 1, and only the different parts are described below.

[0056] In this embodiment, the flexible solar cell 4 includes a top water-blocking layer, a thin-film battery 14 and a bottom water-blocking layer, and the thin-film battery 14 is disposed between the top water-blocking layer and the bottom water-blocking layer.

[0057] In this embodiment, it should be noted that the top water-blocking layer includes a first water-blocking film 12 and a first encapsulating film 13, the bottom water-blocking layer includes a second encapsulating film 15, a second water-blocking film 16 and a waterproof fabric 17, the first water-blocking film 12, the first encapsulating film 13, the thin-film battery 14, the second encapsulating film 15, the second water-blocking film 16 and the waterproof fabric 17 are sequentially arranged from top to bottom, and the thin-film battery 14 can be a flexible CIGS thin-film battery, a flexible CdTe thin-film battery, a flexible GaAs thin-film battery, a flexible perovskite / flexible laminated perovskite thin-film battery, a flexible silicon-based solar cell, a flexible organic solar cell or a flexible nanocrystalline chemical solar cell;

[0058] The first water-blocking film 12 is made of an aging-resistant composite water-blocking film, the first encapsulating film 13 is made of a high-performance, high-transparency, UV-resistant encapsulating film, and the second water-blocking film 16 and the waterproof fabric 17 are bonded with a high-performance encapsulating film; the entire flexible solar cell 4 is made of a small pit lamination technology so that each layer is tightly combined together, and the surface of the component has small pits after lamination;

[0059] In addition, according to the manufacturing process of flexible winding solar panels, cell chips such as crystalline silicon, telluride separators, and gallium arsenide can be laminated to achieve the purpose of winding.

[0060] Furthermore, the structural principle of the flexible solar cell 4 is as follows: a waterproof fabric 17 is used as the substrate of the flexible solar cell 4, which greatly improves its waterproof performance; a thin-film battery 14 is used, including copper indium gallium selenide / flexible perovskite / flexible laminated perovskite thin-film battery, etc., which has high efficiency, light weight, and is easy to bend, and the winding and lightness of the component are guaranteed to the greatest extent; a second water-blocking film 16 is laid under the thin-film battery 14, and a high-performance packaging film is used to bond the second water-blocking film 16 to the waterproof fabric 17; the thin-film battery 14 is covered with a high-performance, high-transparency, UV-resistant first packaging film 13, and the top layer of the component is an aging-resistant composite water-blocking film, which can effectively prevent water vapor from entering and filter unnecessary light; the component is subjected to small-pit lamination technology to make the layers tightly combined together, and the surface of the component after lamination has small pits, which can maximize the effective absorption of light by the component.

[0061] The technical effects achieved by this embodiment are:

[0062] 1. Flexible solar cells 4 use a new type of laying and packaging process, using high-performance ultra-thin materials, and the quality can reach 10g / w;

[0063] 2. The thickness of the flexible solar cell 4 can be less than 1 mm, reflecting the ultra-thin characteristics of the component, and the inner diameter after winding can be ≤ 8 cm;

[0064] 3. The latest small pit lamination technology is used to increase the absorption intensity of sunlight, greatly improve the effective absorption of sunlight, make each layer of material closely combined together, isolate the battery string from the outside world, and greatly improve the service life of solar cell components and the stability of electrical performance;

[0065] 4. Flexible winding solar panels have diversified power and styles, and can be made in different styles according to different usage requirements;

[0066] 5. With suitable accessories, it can be made into a sunshade, which can not only provide shade and shelter from rain, but also provide electricity anytime and anywhere, making your daily electricity use worry-free.

[0067] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

[0068] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of implementation of the present invention without substantially changing the technical content.

Claims

1. A flexible winding solar charging system for electric vehicles, characterized in that: It comprises a charging cable (5), a charging gun (6) and a solar charging module, wherein the power output end of the solar charging module is connected to one end of the charging cable (5), and the other end of the charging cable (5) is provided with the charging gun (6); The solar charging module is arranged on the top of the car (1), the solar charging module uses a flexible solar cell (4), and is provided with a winding device, the flexible solar cell (4) is arranged in the winding device, and the winding device is used to wind up and unfold the flexible solar cell (4); The solar charging module comprises a roof charging module (2) and a vehicle side charging module (3); the roof charging module (2) is arranged on the top of the vehicle (1) along the width direction thereof, and the vehicle side charging module (3) is arranged on the top of the vehicle (1) along the length direction thereof; and one vehicle side charging module (3) is respectively arranged at both ends of the roof charging module (2).

2. A flexible winding solar charging system for electric vehicles according to claim 1, characterized in that: The roof charging module (2) and the vehicle side charging module (3) both adopt a self-retracting device.

3. A flexible winding solar charging system for electric vehicles according to claim 2, characterized in that: The charging gun (6) is provided with a voltage converter.

4. A flexible winding solar charging system for electric vehicles according to claim 2, characterized in that: The vehicle-side charging module (3) comprises a first shell (7), a first reel (8), a first spring (9), a first end cover (10), a flexible solar cell (4) and a first hanging portion (11); the first reel (8) is rotatably arranged in the first shell (7); and the first springs (9) are respectively arranged at both ends of the first reel (8); The flexible solar cell (4) is wound on the first reel (8); one end of the flexible solar cell (4) in the length direction is connected to the first reel (8); the other end of the flexible solar cell (4) is provided with the first hanging portion (11); the first hanging portion (11) is buckled on the first shell (7); and the first end covers (10) are respectively provided at both ends of the first shell (7).

5. A flexible winding solar charging system for electric vehicles according to claim 4, characterized in that: The roof charging module (2) comprises a second shell, a second reel, a second spring, a second end cover, a flexible solar cell (4) and a second hanging portion, the second reel being rotatably arranged in the second shell, and the second springs being respectively arranged at both ends of the second reel; The number of the flexible solar cells (4) is two, the two flexible solar cells (4) are arranged overlapping each other and are wound on the second reel, one end of each flexible solar cell (4) in the length direction is connected to the second reel, and the other end of each flexible solar cell (4) is respectively connected to one of the second hanging parts, and the second hanging part is buckled on the second shell; the second end covers are respectively provided at both ends of the second shell.

6. A flexible winding solar charging system for electric vehicles according to claim 4, characterized in that: The roof charging module (2) comprises a second shell, a second reel, a second spring, a second end cover, a flexible solar cell (4) and a second hanging portion, the number of the second reels is two, the two second reels are both rotatably arranged in the second shell, the two second reels are arranged parallel to each other, and the two ends of each second reel are respectively provided with a second spring; The number of the flexible solar cells (4) is two, the two flexible solar cells (4) are respectively wound on two second reels, one end of each flexible solar cell (4) in the length direction is respectively connected to the corresponding second reel, and the other end of each flexible solar cell (4) is respectively connected to one second hanging part, and the second hanging part is buckled on the second shell; the second end covers are respectively provided at both ends of the second shell.

7. A flexible winding solar charging system for electric vehicles according to claim 5 or 6, characterized in that: The first hanging portion (11) and the second hanging portion are both provided with hanging grooves or hooks along their length directions.

8. The electric vehicle flexible winding solar charging system according to claim 1, characterized in that: The flexible solar cell (4) comprises a top water-blocking layer, a thin-film battery (14) and a bottom water-blocking layer, wherein the thin-film battery (14) is arranged between the top water-blocking layer and the bottom water-blocking layer.

9. A flexible winding solar charging system for electric vehicles according to claim 8, characterized in that: The top water-blocking layer comprises a first water-blocking film (12) and a first packaging film (13); the bottom water-blocking layer comprises a second packaging film (15), a second water-blocking film (16) and a waterproof fabric (17); the first water-blocking film (12), the first packaging film (13), the thin-film battery (14), the second packaging film (15), the second water-blocking film (16) and the waterproof fabric (17) are arranged in sequence from top to bottom.

10. A flexible winding solar charging system for electric vehicles according to claim 9, characterized in that: The thin film battery (14) can be a flexible CIGS thin film battery, a flexible CdTe thin film battery, a flexible GaAs thin film battery, a flexible perovskite / flexible stacked perovskite thin film battery, a flexible silicon-based solar cell, a flexible organic solar cell or a flexible nanocrystal chemical solar cell.

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