Wing-expandable photovoltaic power generation device and electric vehicle using same

Abstract

The utility model relates to the technical field of solar cells, in particular to a photovoltaic power generation device capable of unfolding wings and an electric vehicle applying the photovoltaic power generation device. The photovoltaic power generation device capable of unfolding wings comprises a mounting seat body, a fixed photovoltaic power generation module fixedly arranged at the top of the mounting seat body, and at least one wing unfolding photovoltaic power generation module which is positioned between the lower part of the fixed photovoltaic power generation module and the upper part of the bottom of the mounting seat body, is in sliding connection with the mounting seat body, and is parallel to the fixed photovoltaic power generation module; the wing-unfolding photovoltaic power generation module can extend out of the mounting seat body or retract into the mounting seat body along a first direction parallel to the fixed photovoltaic power generation module; the fixed photovoltaic power generation module comprises a thin film photovoltaic cell module and / or a first crystalline silicon photovoltaic cell module, and the wing photovoltaic power generation module comprises a second crystalline silicon photovoltaic cell module. The technical problems that an existing solar cell power generation assembly is too heavy in weight, too large in size, troublesome to disassemble and assemble, not suitable for the electric automobile and incapable of achieving electricity supplement of the electric automobile at any time are solved.

Description

Technical Field

[0001] The present application relates to the technical field of solar cells, and particularly to a deployable photovoltaic power generation device and an electric vehicle applying the same. Background Art

[0002] At present, with the increasing popularity of new energy electric vehicles, the problem of troublesome charging of electric vehicles is becoming increasingly difficult to ignore. Especially during long-distance driving, charging is a problem and it will also bring charging anxiety to users. Solar cells can utilize solar energy to supplement electric energy. Then, if solar cells can be used to supplement the power of electric vehicles at any time, wouldn't the problem of difficult charging of electric vehicles be solved, especially during long-distance driving? However, existing solar cell power generation components used on balconies, building facades, gardens, seashores, etc. are generally too heavy, too large in volume, and the installation and disassembly are also relatively complex, and are not suitable for use on electric vehicles. On the one hand, it will cause the vehicle body to be too heavy, and at the same time, there is not enough space for installation, and it is not convenient for the vehicle to install and disassemble. And if flexible components made of soft glass are used, they are very easy to be damaged. Therefore, there is an urgent need for a technical solution that can solve the above problems and enable electric vehicles to charge at any time. A perfect solution. Summary of the Utility Model

[0003] The purpose of the present application is to provide a deployable photovoltaic power generation device and an electric vehicle applying the same, so as to solve the technical problems that existing solar cell power generation components are too heavy, too large in volume, troublesome to disassemble and assemble, not suitable for use on electric vehicles, and unable to supplement the power of electric vehicles at any time.

[0004] In a first aspect, a deployable photovoltaic power generation device provided by the present application includes:

[0005] A mounting seat body; and

[0006] A fixed photovoltaic power generation module fixedly arranged on the top of the mounting seat body; and

[0007] At least one deployable wing photovoltaic power generation module located between the lower part of the fixed photovoltaic power generation module and the upper part of the bottom of the mounting seat body and slidably connected to the mounting seat body, and the deployable wing photovoltaic power generation module is arranged parallel to the fixed photovoltaic power generation module, so that the deployable wing photovoltaic power generation module can extend out of the mounting seat body or retract into the mounting seat body along a first direction parallel to the fixed photovoltaic power generation module;

[0008] The fixed photovoltaic power generation module includes a thin-film photovoltaic cell module and / or a first crystalline silicon photovoltaic cell module, and the deployable wing photovoltaic power generation module includes a second crystalline silicon photovoltaic cell module.

[0009] Further, there is one said winged photovoltaic power generation module, or there are two said winged photovoltaic power generation modules arranged at intervals up and down, and the second length dimension of the said winged photovoltaic power generation module along the first direction is less than or equal to the first length dimension of the said fixed photovoltaic power generation module along the first direction; or

[0010] There are two said winged photovoltaic power generation modules, and the two said winged photovoltaic power generation modules are slidably connected on the same horizontal plane and extend away from each other or retract towards each other respectively, and the second length dimension of the said winged photovoltaic power generation module along the first direction is less than or equal to one half of the first length dimension of the said fixed photovoltaic power generation module along the first direction.

[0011] Further, the said fixed photovoltaic power generation module is set as a four-terminal laminated solar cell structure;

[0012] The said fixed photovoltaic power generation module includes the said thin-film photovoltaic cell module located on the upper layer, the said first crystalline silicon photovoltaic cell module located on the lower layer, and the mounting bracket located on the bottom layer, and the said first crystalline silicon photovoltaic cell module is arranged on the said mounting bracket.

[0013] Furthermore, the said thin-film photovoltaic cell module is composed of a toughened glass layer located on the upper layer, a thin-film battery layer located on the lower layer, and a first power output terminal led out from the side end of the said thin-film battery layer;

[0014] The said thin-film battery layer is set as a perovskite battery structure, and the perovskite battery structure is deposited and prepared on the said toughened glass layer.

[0015] Furthermore, the said first crystalline silicon photovoltaic cell module is encapsulated by a first transparent plastic thin plate, a first encapsulation adhesive film layer, a first battery string array layer, a second encapsulation adhesive film layer, and a first thin film backplane stacked in sequence from top to bottom, and a second power output terminal is led out from the side end of the said first battery string array layer; and / or

[0016] The thickness of the said toughened glass layer is 0.7 - 6 mm.

[0017] Further, the said winged photovoltaic power generation module is set as a two-terminal single-junction solar crystalline silicon cell structure;

[0018] The said second crystalline silicon photovoltaic cell module is set as a cicada wing photovoltaic panel, and the cicada wing photovoltaic panel is encapsulated by a second transparent plastic thin plate, a third encapsulation adhesive film layer, a second battery string array layer, a fourth encapsulation adhesive film layer, and a second thin film backplane stacked in sequence from top to bottom, and a third power output terminal is led out from the side end of the said second battery string array layer.

[0019] Furthermore, the winged photovoltaic power generation module further includes a winged frame slidably connected to the mounting seat body, and the cicada wing photovoltaic panel is disposed on the winged frame;

[0020] The winged frame includes a frame bottom plate, drive racks extending along the first direction and disposed on opposite sides of the frame bottom plate, and at least one guide rod extending along the first direction and disposed on the lower surface of the frame bottom plate;

[0021] The mounting seat body includes a mounting substrate, sliding grooves extending along the first direction and disposed on opposite sides of the mounting substrate, and at least one guide rod support corresponding to the guide rod and disposed on the upper surface of the mounting substrate. A drive gear and a servo motor are provided at the end of the sliding groove, and the drive rack is in meshing transmission connection with the corresponding drive gear, and the servo motor provides power.

[0022] Furthermore, mounting groove plates extending along the first direction are provided on opposite sides of the mounting substrate. Fixed grooves and the sliding grooves extending along the first direction are provided at intervals up and down on the mounting groove plates. Opposite ends of the fixed photovoltaic power generation module are inserted and fixedly connected into the fixed grooves; and / or

[0023] The mounting substrate and / or the frame bottom plate is a rectangular rigid frame structure made of any one of lightweight carbon fiber material, lightweight carbon steel material, and thin aluminum material; and / or

[0024] A triangular support grid structure is provided at the bottom of the frame bottom plate; and / or [[ID=I6]]

[0025] The thickness of the second battery string array layer is 60 - 110 μm, and the thickness of the cicada wing photovoltaic panel is 0.8 - 3 mm.

[0026] ] Furthermore, the mounting seat body further includes a shield structure,

[0027] The shield structure includes a shield bottom plate located at the bottom of the mounting substrate and shield side plates provided on opposite sides of the shield bottom plate and extending along the first direction. The shield side plates are located outside the adjacent mounting groove plates, and a step plate extending along the first direction and parallel to the fixed photovoltaic power generation module is provided at the top of the shield side plates;

[0028] Opposite ends of the thin film photovoltaic cell module of the fixed photovoltaic power generation module are fixedly connected to the step plate, and opposite ends of the first crystalline silicon photovoltaic cell module and the mounting bracket of the fixed photovoltaic power generation module are inserted and fixedly connected into the fixed grooves of the mounting substrate.

[0029] In a second aspect, an electric vehicle provided by the present application includes the deployable wing photovoltaic power generation device described in any one of the foregoing, and the deployable wing photovoltaic power generation device is disposed on the top of the electric vehicle.

[0030] Compared with the prior art, for the deployable wing photovoltaic power generation device provided by the present application, a fixed photovoltaic power generation module is fixedly disposed on the top of the mounting body. When the photovoltaic power generation device does not deploy its wings, the fixed photovoltaic power generation module can realize the power generation and charging function, so that power generation can be achieved even when the wings are not deployed. And at least one deployable wing photovoltaic power generation module slidably connected to the mounting body is disposed between the lower part of the fixed photovoltaic power generation module and the upper part of the bottom of the mounting body. The deployable wing photovoltaic power generation module is disposed parallel to the fixed photovoltaic power generation module, and the deployable wing photovoltaic power generation module can deploy out of the mounting body or retract into the mounting body along the first direction X parallel to the fixed photovoltaic power generation module. First, by the way of parallel wing deployment and stacking, the overall occupied space of the photovoltaic power generation device can be greatly reduced, and it is convenient to set up and carry. At the same time, compared with other folding methods, the parallel wing deployment method is more reliable in operation and transmission. Second, the setting of the deployable wing photovoltaic power generation module further increases the overall power generation area of the photovoltaic power generation device and improves the overall power generation and charging capacity. And the fixed photovoltaic power generation module includes a thin-film photovoltaic cell module that is lightweight and has good short-wave response and / or a first crystalline silicon photovoltaic cell module such as a heterojunction HJT cell, a back-contact IBC cell, or a Topcon cell that is highly efficient and lightweight. The deployable wing photovoltaic power generation module includes a second crystalline silicon photovoltaic cell module of crystalline silicon photovoltaic cells such as heterojunction HJT cells, back-contact IBC cells, or Topcon cells that are highly efficient and lightweight. The use of high-efficiency, lightweight, and ultra-thin solar cells not only improves the power generation efficiency but also further greatly reduces the overall weight of the deployable wing photovoltaic power generation device, making it more suitable for being installed on application carriers such as electric vehicles, and will not bring an additional burden to application carriers such as electric vehicles. And during installation, only the bottom of the mounting body needs to be directly fixedly installed on the top of the electric vehicle or other application carriers (such as ships, balconies, building sidewalls, gardens, beaches), and the disassembly and assembly are simple and convenient, and the on-demand charging requirements of electric vehicles and the like can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a schematic structural diagram of the deployable wing photovoltaic power generation device provided by the embodiment of the present application in a deployed state;

[0033] Figure 2 Exploded view of the structure of the deployable-wing photovoltaic power generation device provided by the embodiment of the present application;

[0034] Figure 3 Exploded view of the structure of the fixed photovoltaic power generation module provided by the embodiment of the present application;

[0035] Figure 4 Exploded view of the structure of the thin-film photovoltaic cell module provided by the embodiment of the present application;

[0036] Figure 5 Exploded view of the structure of the first crystalline silicon photovoltaic cell module provided by the embodiment of the present application;

[0037] Figure 6 Exploded view of the structure of the deployable-wing photovoltaic power generation module provided by the embodiment of the present application;

[0038] Figure 7 Exploded view of the structure of the cicada-wing photovoltaic panel provided by the embodiment of the present application;

[0039] Figure 8 Schematic diagram of the structure of the wing suit frame provided by the embodiment of the present application;

[0040] Figure 9 Partial exploded view of the structure of the mounting seat body provided by the embodiment of the present application;

[0041] Figure 10 Schematic diagram of the structure of the wing suit frame and the mounting seat body provided by the embodiment of the present application;

[0042] Figure 11 Side sectional view of the deployable-wing photovoltaic power generation device provided by the embodiment of the present application;

[0043] Figure 12 is Figure 11 Enlarged view of a partially cut structure in;

[0044] Figure 13 Cross-sectional view of the mounting groove plate provided by the embodiment of the present application;

[0045] Figure 14 Schematic diagram of the structure of the deployable-wing photovoltaic power generation device provided by the embodiment of the present application applied to the first type of electric vehicle Figure 1 ;

[0046] Figure 15 Schematic diagram of the structure of the deployable-wing photovoltaic power generation device provided by the embodiment of the present application applied to the first type of electric vehicle Figure 2 ;

[0047] Figure 16Structural schematic of the deployable photovoltaic power generation device provided by the embodiment of the present application when applied to the first type of electric vehicle Figure 3 ;

[0048] Figure 17 Structural schematic of the photovoltaic power generation device in the deployed wing state provided by the embodiment of the present application when applied to the first type of electric vehicle Figure 1 ;

[0049] Figure 18 Structural schematic of the photovoltaic power generation device in the deployed wing state provided by the embodiment of the present application when applied to the first type of electric vehicle Figure 2 ;

[0050] Figure 19 Structural schematic of the photovoltaic power generation device in the deployed wing state provided by the embodiment of the present application when applied to the first type of electric vehicle Figure 3 ;

[0051] Figure 20 Structural schematic of the deployable photovoltaic power generation device provided by the embodiment of the present application when applied to the second type of electric vehicle;

[0052] Figure 21 Structural schematic of the photovoltaic power generation device in the deployed wing state provided by the embodiment of the present application when applied to the second type of electric vehicle;

[0053] Figure 22 Structural schematic of the photovoltaic power generation device in the deployed wing state provided by the embodiment of the present application when applied to the third type of electric vehicle;

[0054] Figure 23 Structural schematic of the deployable photovoltaic power generation device provided by the embodiment of the present application when applied to the third type of electric vehicle Figure 1 ;

[0055] Figure 24 Structural schematic of the deployable photovoltaic power generation device provided by the embodiment of the present application when applied to the third type of electric vehicle Figure 2 .

[0056] Reference numerals:

[0057] 100 - Photovoltaic power generation device;

[0058] 10 - Fixed photovoltaic module;

[0059] 11 - Thin - film photovoltaic cell module;

[0060] 111 - Tempered glass layer;

[0061] 112 - Thin - film battery layer;

[0062] 113 - First power output terminal;

[0063] 12 - First crystalline silicon photovoltaic cell module;

[0064] 121 - First transparent plastic thin plate;

[0065] 122 - First encapsulation adhesive film layer;

[0066] 123 - First battery string array layer;

[0067] 124 - Second encapsulation adhesive film layer;

[0068] 125 - First thin film backplane;

[0069] 126 - Second power output terminal;

[0070] 13 - Mounting bracket;

[0071] 20 - Winged photovoltaic power generation module;

[0072] 21 - Cicada wing photovoltaic panel;

[0073] 211 - Second transparent plastic thin plate;

[0074] 212 - Third encapsulation adhesive film layer;

[0075] 213 - Second battery string array layer;

[0076] 214 - Fourth encapsulation adhesive film layer;

[0077] 215 - Second thin film backplane;

[0078] 216 - Third power output terminal;

[0079] 22 - Wing frame;

[0080] 221 - Frame bottom plate;

[0081] 222 - Transmission rack;

[0082] 223 - Guide rod;

[0083] 224 - Guide rod seat;

[0084] 225 - Triangular support grid structure;

[0085] 30 - Mounting seat body;

[0086] 31 - Mounting substrate;

[0087] 32 - Mounting groove plate;

[0088] 321 - Fixed groove;

[0089] 322 - Sliding groove;

[0090] 33 - Guide bar support

[0091] 34 - Transmission gear

[0092] 35 - Servo motor

[0093] 36 - Shield structure

[0094] 361 - Shield bottom plate

[0095] 362 - Shield side plate

[0096] 3621 - Step plate

[0097] 37 - Connecting support column

[0098] 201 - First electric vehicle

[0099] 202 - Second electric vehicle

[0100] 203 - Third electric vehicle Detailed implementation mode

[0101] [[ID=3,7]]To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0102] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0103] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0104] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0105] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0106] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0107] The following will describe in detail some embodiments of the present application with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0108] As Figures 1 to 13 shown, an embodiment of the present application provides a photovoltaic power generation device 100 with deployable wings. As Figures 14 to 24 shown, an embodiment of the present application also provides different types of electric vehicles (such as the first electric vehicle 201, the second electric vehicle 202, and the third electric vehicle 203) applying the photovoltaic power generation device 100 with deployable wings. Specifically, the photovoltaic power generation device 100 with deployable wings can be set on the top of the electric vehicle. In addition, the photovoltaic power generation device 100 with deployable wings provided by the embodiment of the present application can also be applied to other application carriers such as ships, balconies, building side walls, gardens, beaches, etc.

[0109] As Figures 1 to 13As shown, the deployable-wing photovoltaic power generation device 100 provided by the embodiment of the present application may specifically include a mounting base 30, and a fixed photovoltaic power generation module 10 fixedly arranged on the top of the mounting base 30. The mounting base 30 may include a mounting substrate 31, and the fixed photovoltaic power generation module 10 is preferably arranged parallel to the mounting substrate 31 up and down; it also includes at least one deployable-wing photovoltaic power generation module 20 located between the lower part of the fixed photovoltaic power generation module 10 and the upper part of the bottom of the mounting base 30 (specifically, it may refer to the mounting substrate 31) and slidably connected to the mounting base 30, and the deployable-wing photovoltaic power generation module 20 is arranged parallel to the fixed photovoltaic power generation module 10, so that the deployable-wing photovoltaic power generation module 20 can extend out of the mounting base 30 or retract into the mounting base 30 along the direction of the first direction X parallel to the fixed photovoltaic power generation module 10 as Figure 1 shown, to realize wing deployment; and the fixed photovoltaic power generation module 10 includes a thin-film photovoltaic cell module 11 and / or a first crystalline silicon photovoltaic cell module 12, and the deployable-wing photovoltaic power generation module 20 includes a second crystalline silicon photovoltaic cell module.

[0110] Compared with the prior art, in the deployable-wing photovoltaic power generation device 100 provided by the embodiment of the present application, a fixed photovoltaic power generation module 10 is fixedly arranged on the top of the mounting base 30. When the photovoltaic power generation device 100 does not deploy its wings, the fixed photovoltaic power generation module 10 can realize the power generation and charging function, so that power generation can be achieved even when the wings are not deployed;

[0111] And between the lower part of the fixed photovoltaic power generation module 10 and the upper part of the bottom of the mounting base 30, at least one deployable-wing photovoltaic power generation module 20 slidably connected to the mounting base 30 is provided, and the deployable-wing photovoltaic power generation module 20 is arranged parallel to the fixed photovoltaic power generation module 10, and the deployable-wing photovoltaic power generation module 20 can extend out of the mounting base 30 or retract into the mounting base 30 along the first direction X parallel to the fixed photovoltaic power generation module 10; First, by the way of parallel wing deployment and lamination, the overall occupied space of the photovoltaic power generation device 100 can be greatly reduced, and it is convenient to set up and carry. At the same time, compared with other folding methods, the parallel wing deployment method is more reliable in operation and transmission; Second, the setting of the deployable-wing photovoltaic power generation module 20 further increases the overall power generation area of the photovoltaic power generation device 100 and improves the overall power generation and charging capacity;

[0112] Moreover, the fixed photovoltaic power generation module 10 includes a thin-film photovoltaic cell module 11 that is lightweight and has good short-wave response and / or a first crystalline silicon photovoltaic cell module 12 such as a high-efficiency lightweight heterojunction HJT cell, an interdigitated back contact IBC cell, or a Topcon cell. The winged photovoltaic power generation module 20 includes a second crystalline silicon photovoltaic cell module of crystalline silicon photovoltaic cells such as high-efficiency lightweight heterojunction HJT cells, interdigitated back contact IBC cells, or Topcon cells. The use of high-efficiency, lightweight, and ultra-thin solar cells not only improves the power generation efficiency but also further greatly reduces the overall weight of the deployable winged photovoltaic power generation device 100, making it more suitable for installation on application carriers such as electric vehicles. It will not bring an extra burden to application carriers such as electric vehicles, and during installation, only the bottom of the mounting seat body 30 needs to be directly fixed on the top of an electric vehicle or other application carriers (such as ships, balconies, building side walls, gardens, beaches), and the disassembly and installation are simple and convenient, enabling the on-demand charging of electric vehicles and the like at any time.

[0113] Such as Figure 1 and Figure 2 As shown, regarding the setting of the aforementioned winged photovoltaic power generation module 20, first, regardless of the number of winged photovoltaic power generation modules 20 set, the size of the second width B2 of the winged photovoltaic power generation module 20 in the second direction Y perpendicular to the first direction X should be less than or equal to the size of the first width B1 of the fixed photovoltaic power generation module 10 in the second direction Y to ensure that the winged photovoltaic power generation module 20 can be completely retracted under the fixed photovoltaic power generation module 10 to achieve free expansion. Moreover, if there are multiple winged photovoltaic power generation modules 20, the different winged photovoltaic power generation modules 20 can be connected in parallel.

[0114] Based on the foregoing embodiment, an alternative embodiment is that specifically, one winged photovoltaic power generation module 20 can be provided, and the size of the second length L2 of the winged photovoltaic power generation module 20 in the first direction X is less than or equal to the size of the first length L1 of the fixed photovoltaic power generation module 10 in the first direction X to ensure that the winged photovoltaic power generation module 20 can be completely retracted under the fixed photovoltaic power generation module 10 to achieve free expansion.

[0115] Another alternative embodiment is that specifically, two or more winged photovoltaic power generation modules 20 arranged at intervals up and down can be provided, and the size of the second length L2 of each winged photovoltaic power generation module 20 in the first direction X is less than or equal to the size of the first length L1 of the fixed photovoltaic power generation module 10 in the first direction X to ensure that each winged photovoltaic power generation module 20 can be completely retracted under the fixed photovoltaic power generation module 10 to achieve free expansion, and the power generation area of the photovoltaic power generation device 100 is doubled, enhancing the overall power generation and charging capacity.

[0116] Another alternative embodiment is, such as Figure 2As shown, this application also takes this embodiment as an example for illustration. Specifically, two winged photovoltaic power generation modules 20 can be provided. The two winged photovoltaic power generation modules 20 are slidably connected on the same horizontal plane and extend in directions away from each other or retract in directions close to each other. Moreover, the dimension of the second length L2 of the winged photovoltaic power generation module 20 along the first direction X is less than or equal to half of the dimension of the first length L1 of the fixed photovoltaic power generation module 10 along the first direction X. In this way, the power generation area can be increased, and at the same time, the thinness of the longitudinal height can be ensured, the longitudinal height dimension is not too large, and the overall portability is ensured.

[0117] Regarding the aforementioned fixed photovoltaic power generation module 10, as Figures 3 to 5 shown, the fixed photovoltaic power generation module 10 can be specifically set as a four-terminal stacked solar cell structure. The reason for not using the more widely applied two-terminal stack is to more easily organize the supply chain and ensure the quality, and at the same time simplify or even eliminate the maintenance of the fixed photovoltaic power generation module 10, so that it can work at any time.

[0118] A specific embodiment is that, as Figure 3 shown, the aforementioned fixed photovoltaic power generation module 10 may include a thin-film photovoltaic cell module 11 located on the upper layer arranged in a stacked manner. The thin-film photovoltaic cell module 11 includes thin-film batteries with good short-wave response, such as perovskite, GaAs, CdTe, etc., and a first crystalline silicon photovoltaic cell module 12 located on the lower layer. The first crystalline silicon photovoltaic cell module 12 includes, for example, heterojunction HJT cells, back-contact IBC cells, or Topcon cells, etc., and an installation bracket 13 located at the bottom layer. And the first crystalline silicon photovoltaic cell module 12 is arranged on the installation bracket 13. The thin-film photovoltaic cell module 11 and the first crystalline silicon photovoltaic cell module 12 are installed and fixed through the installation bracket 13. Specifically, the installation bracket 13 is fixedly connected to the fixing groove 321 of the installation groove plate 32 of the installation seat body 30. On the one hand, it is convenient for installation, and on the other hand, it can play a role in protecting the thin-film photovoltaic cell module 11 and the first crystalline silicon photovoltaic cell module 12.

[0119] The aforementioned fixed photovoltaic power generation module 10 adopts a perovskite and HJT four-terminal stack, effectively improving the photovoltaic power generation efficiency of the fixed photovoltaic power generation module 10. The comparison shows that it can be increased to 33%. And since the four-terminal system can separately process the manufacturing of the perovskite battery and the HJT battery, the manufacturing difficulty can also be reduced at the same time.

[0120] A more specific embodiment is that, as Figure 4As shown in the figure, the aforementioned thin-film photovoltaic cell module 11 can specifically be composed of a tempered glass layer 111 located on the upper layer and a thin-film battery layer 112 located on the lower layer, which are stacked, and a first power output terminal 113 led out from the side end of the thin-film battery layer 112. The first power output terminal 113 is used to lead out electric energy. Preferably, the thin-film battery layer 112 is set as a perovskite battery structure, and the perovskite battery structure is deposited and prepared on the tempered glass layer 111. Preferably, the thickness of the tempered glass layer 111 is between 0.7 and 6 mm.

[0121] Another more specific embodiment is that, as Figure 5 shown, the aforementioned first crystalline silicon photovoltaic cell module 12 can specifically be encapsulated by a first transparent plastic sheet 121, a first encapsulation adhesive film layer 122, a first battery string array layer 123, a second encapsulation adhesive film layer 124, and a first thin film backplane 125, which are stacked in sequence from top to bottom. After encapsulation, a second power output terminal 126 is led out from the side end of the first battery string array layer 123, and the second power output terminal 126 is used to lead out electric energy.

[0122] Regarding the aforementioned winged photovoltaic power generation module 20, as Figures 6 to 8 shown, the winged photovoltaic power generation module 20 can specifically be set as a two-terminal single-junction solar crystalline silicon battery structure, and its solar battery is a crystalline silicon solar battery, such as a heterojunction HJT battery, a back-contact IBC battery, or a Topcon battery, etc. More specifically, the second crystalline silicon photovoltaic cell module includes a high-efficiency solar battery containing a crystalline silicon solar battery or a non-crystalline silicon heterojunction HJT structure.

[0123] A specific embodiment is that, as Figure 7 shown, the aforementioned second crystalline silicon photovoltaic cell module can specifically be set as a cicada-wing photovoltaic panel 21. The cicada-wing photovoltaic panel 21 can be encapsulated by a second transparent plastic sheet 211, a third encapsulation adhesive film layer 212, a second battery string array layer 213, a fourth encapsulation adhesive film layer 214, and a second thin film backplane 215, which are stacked in sequence from top to bottom. And a third power output terminal 216 is led out from the side end of the second battery string array layer 213, and the third power output terminal 216 is used to lead out electric energy; preferably, the thickness of the second battery string array layer 213 is between 60 and 110 um, and the edge of the high-efficiency battery (the second battery string array layer 213) is processed without a pyramid structure. Preferably, the total thickness of the cicada-wing photovoltaic panel 21 including the encapsulation material is between 0.8 and 3 mm, and the cicada-wing photovoltaic panel 21 is encapsulated by 0BB non-main-grid encapsulation technology.

[0124] By performing necessary modification treatments on the edges of the heterojunction battery, an ultra-thin battery cell with higher mechanical strength is obtained. Through the encapsulation technology of the main-gridless battery, the ultra-light weight and high reliability of the cicada-wing photovoltaic panel 21 are achieved. Moreover, the present application adopts a photovoltaic power generation device 100 that combines the wing-spreading photovoltaic power generation module 20 with the cicada-wing photovoltaic panel 21 and the fixed photovoltaic power generation module 10 with the perovskite stack, which can obtain the maximum power generation capacity, and can increase the endurance of the electric vehicle by up to 100 km per day at most, greatly solving the problem of the electric vehicle charging and continuing the journey at any time.

[0125] A preferred embodiment is as Figures 8 to 10 shown. The aforementioned wing-spreading photovoltaic power generation module 20 may further include a wing-shaped frame 22 that is slidably connected to the mounting base 30. The aforementioned cicada-wing photovoltaic panel 21 is disposed on the wing-shaped frame 22, and the wing-shaped frame 22 drives the cicada-wing photovoltaic panel 21 to extend and retract.

[0126] A specific embodiment is as Figure 6 and Figure 8 shown. The wing-shaped frame 22 may include a frame bottom plate 221 and two transmission racks 222 that are disposed on opposite sides of the frame bottom plate 221 and extend along the first direction X. Correspondingly, as Figure 9 and Figure 10 shown, the aforementioned mounting base 30 may include a mounting substrate 31 and at least two sliding grooves 322 that are disposed on opposite sides of the mounting substrate 31 and extend along the first direction X. Specifically, opposite sides of the mounting substrate 31 may be provided with mounting groove plates 32 that extend along the first direction X, and the sliding grooves 322 may be provided on the mounting groove plates 32. The transmission racks 222 are inserted and slidably connected in the sliding grooves 322. Preferably, transmission gears 34 and servo motors 35 are provided at the ends of the sliding grooves 322. The transmission racks 222 are meshed and drivingly connected to the corresponding transmission gears 34, and the servo motors 35 provide power to realize the functions of automatically extending the wings and automatically retracting.

[0127] Furthermore, in order to improve the guiding effect of the movement of the wing-shaped frame 22, as Figures 8 to 10 shown, the aforementioned wing-shaped frame 22 may further include at least one guide rod 223 that is disposed on the lower surface of the aforementioned frame bottom plate 221 and extends along the first direction X. The wing-shaped frame 22 may also be provided with a guide rod seat 224 for fixing the guide rod 223. Correspondingly, at least one guide rod support 33 may be provided on the upper surface of the mounting substrate 31 corresponding to the guide rod 223 to limit the guiding movement of the guide rod. As shown in the figure, each wing-shaped frame 22 is provided with two spaced-apart guide rods 223, and two wing-shaped frames 22 are provided with four guide rods 223, and four guide rod supports 33 are provided on the upper surface of the mounting substrate 31.

[0128] Furthermore, the aforementioned mounting substrate 31 and the frame bottom plate 221 can both be rectangular rigid frame structures made of any one of lightweight carbon fiber materials, lightweight carbon steel materials, and thin aluminum materials, so as to further reduce the overall weight and improve portability.

[0129] Furthermore, a triangular support grid structure 225 can be provided at the bottom of the aforementioned frame bottom plate 221, with a partial hollow design and a triangular grid for stable support, which not only further reduces the weight but also improves the stability of the frame bottom plate 221, enhances the smoothness during movement, and improves the connection and movement reliability.

[0130] An alternative embodiment is, as Figures 11 to 13 shown, mounting groove plates 32 extending along the first direction X can be respectively provided on opposite sides of the mounting substrate 31. The mounting groove plates 32 can be provided with fixing grooves 321 and the aforementioned sliding grooves 322 extending along the first direction X at upper and lower intervals. Opposite ends of the aforementioned fixed photovoltaic power generation module 10 can be inserted and fixedly connected into the fixing grooves 321 to improve the reliability of installation and connection.

[0131] Further, the mounting seat body 30 provided in the embodiment of the present application can further include a shield structure 36. The shield structure 36 can include a shield bottom plate 361 located at the bottom of the mounting substrate 31 and shield side plates 362 provided on opposite sides of the shield bottom plate 361 and extending along the first direction X. The shield side plates 362 are located outside the adjacent mounting groove plates 32. The shield side plates 362 and the shield bottom plate 361 play a protective role for the interior. A step plate 3621 extending along the first direction X and parallel to the fixed photovoltaic power generation module 10 is provided at the top of the shield side plates 362. Specifically, opposite ends of the thin-film photovoltaic cell module 11 of the aforementioned fixed photovoltaic power generation module 10 are fixedly connected to the step plate 3621. The edge of the tempered glass layer 111 provided on the top layer of the thin-film photovoltaic cell module 11 is protected by the shield side plates 362 and is simultaneously received by the step plate 3621, which plays a role in strengthening the protection of the thin-film photovoltaic cell module 11 with the tempered glass layer 111. At the same time, structural adhesive bonding and waterproofing can be used, so that the top surface of the entire photovoltaic power generation device 100 is a complete plane, which is firm and beautiful. Opposite ends of the first crystalline silicon photovoltaic cell module 12 and the mounting bracket 13 of the fixed photovoltaic power generation module 10 can be inserted and fixedly connected into the aforementioned fixing grooves 321 of the mounting substrate 31, and the weight can be borne separately.

[0132] In addition, the photovoltaic power generation device 100 can also be configured with wind speed, dust, humidity, and temperature sensors to sense and control the external environment at any time. In case of an emergency or bad weather, the winged photovoltaic power generation module 20 can be quickly retracted into the mounting seat body 30 for protection in a timely manner.

[0133] Furthermore, asFigures 14 to 24 As shown in the figure, embodiments of the present application further provide different types of electric vehicles that apply the photovoltaic power generation device 100 with deployable wings, which are listed separately below.

[0134] The first embodiment is, as Figures 14 to 19 shown, the first electric vehicle 201 can specifically be an SUV station wagon. In this embodiment, ordinary single-junction battery technology is adopted. The body length of the SUV station wagon is about 4.5 m, the body width is about 1.8 m, the roof length is about 2.2 m, and the roof is located in the second half of the body. Correspondingly, the mounting seat body 30 of the photovoltaic power generation device 100 with deployable wings can be directly or through a connecting support column 37 fixedly arranged at its bottom and arranged on the top of the SUV station wagon.

[0135] The photovoltaic power generation device 100 with deployable wings includes a main body part (mounting seat body 30 and fixed photovoltaic power generation module 10) and a deployable wing part (deployable wing photovoltaic power generation module 20). The length of the main body part is 2.2 m, and the width is 1.8 m. The main body part contains a fixed photovoltaic power generation module 10 with high mechanical strength, and its surface has a tempered glass layer 111 that resists impacts such as hail, or a composite material protection layer containing tempered glass. The fixed photovoltaic power generation module 10 is arranged on the top layer of the main body part and has the function of receiving sunlight and generating electricity during driving and parking. The area of the fixed photovoltaic power generation module 10 is about 1.8 * 2.2 = 3.96 m 2 , considering a solar cell module with a matching efficiency of 23.5%, its power generation power is about 930 W. Considering an area with ordinary solar resources and 3.5 hours of effective sunlight per day. Then it can generate 3.2 degrees of electricity per day. According to the power consumption of about 7 km / kWh for new energy vehicles, it corresponds to an additional range of about 23 kilometers for the vehicle.

[0136] The length of the wing part is 2.2 m and the width is 1.8 m. When the vehicle is running, it is hidden inside the main body part. The wing part is mainly composed of extremely lightweight cicada wing solar components. When the vehicle is running, the cicada wing solar components are stored inside the main body part and hidden under the fixed photovoltaic power generation module 10. The wing part is further divided into a front extension part and a rear extension part, which can be extended forward and backward through the front extension part and the rear extension part. Considering the SUV model, the area of the cicada wing photovoltaic panels 21 in the front extension part and the rear extension part is equivalent to the area of the solar components of the fixed photovoltaic power generation module 10. Therefore, it can be divided into three cases. First, when only the fixed photovoltaic power generation module 10 works during driving, it corresponds to an extended range of about 23 km. Second, when the main body part and the front extension cicada work during parking, it corresponds to an extended range of about 46 km. Third, when the main body part, the front extension part and the rear extension part work during parking, it corresponds to an extended range of about 69 km. The above does not consider the bifacial gain when the cicada wing photovoltaic panels 21 in the front extension part and the rear extension part work. If the bifacial gain is considered, the extended range can reach 76 km per day. In addition, if it is considered that the vehicle is driving in areas with good sunlight such as the Qinghai-Tibet Plateau, the extended range can exceed 100 km.

[0137] The second embodiment is, as Figure 20 and Figure 21 shown, the second electric vehicle 202 can specifically also be an SUV station wagon, but it uses the tandem solar cell technology. Different from the aforementioned first embodiment, the fixed photovoltaic power generation module 10 of the main body part of the deployable photovoltaic power generation device 100 it applies uses the tandem solar cell technology, and its power generation area is also about 1.8 * 2.2 = 3.96 m 2 , but considering the solar tandem cell module with a matching efficiency of 33%, its power generation power is about 1306.8 W. Considering an area with ordinary solar resources and 3.5 hours of effective sunlight per day. Then it can generate 4.57 degrees of electricity per day. According to the power consumption of about 7 km / kWh for new energy vehicles, it corresponds to an extended range of about 32 km for the vehicle. This 33% battery module is composed of two parts. One part is the thin film battery layer 112 of the thin film photovoltaic cell module 11, and the other part is the first battery string array layer 123 of the first crystalline silicon photovoltaic cell module 12.

[0138] The length of the wing part is 2.2 m and the width is 1.8 m. The area of the extended body solar components is about 1.8 * 2.2 = 3.96 m 2, consider a solar cell module with a matching efficiency of 23.5%, whose power generation is about 930W. Considering areas with ordinary solar resources and 3.5 hours of effective sunlight per day, it can generate 3.2 kWh of electricity per day. According to the power consumption of new energy vehicles at about 7 km / kWh, it corresponds to an additional range of about 23 kilometers for the vehicle. Therefore, it can be divided into three cases. First, when only the fixed photovoltaic power generation module 10 is working during driving, it corresponds to an additional range of about 32 km. Second, when parked, when the main body part and the front extended wing are working, it corresponds to an additional range of about 55 km. Third, when parked, when the main body part, the front extended body part and the rear extended body part are working, it corresponds to an additional range of about 78 km. The double-sided gain when the cicada-wing photovoltaic panels 21 of the front extended body part and the rear extended body part are working is not considered above. If the double-sided gain is considered, it can reach an additional range of 85 km per day. Additionally, if it is considered that the driving is in areas with good sunlight such as the Qinghai-Tibet Plateau, it can reach more than 150 km.

[0139] The third embodiment is, as Figures 22 to 24 shown, the third electric vehicle 203 can be an ordinary sedan, with a body length of about 4.5 m, a body width of about 1.8 m, and a roof length of about 1.5 m. The roof is located at a relatively rear position of the body. The front end of the roof is about 1.8 m away from the front end of the body, and the rear end of the roof is about 1.2 m away from the rear end of the body.

[0140] The deployable-wing photovoltaic power generation device 100 includes a main body part (mounting seat body 30 and fixed photovoltaic power generation module 10) and a wing part (deployable-wing photovoltaic power generation module 20). The length of its main body part is 1.5 m and the width is 1.8 m. The area of the main body solar module (fixed photovoltaic power generation module 10) is about 1.8 * 1.5 = 2.7 m 2 , consider a solar cell module with a matching efficiency of 23.5%, whose power generation is about 634.5W. Considering areas with ordinary solar resources and 3.5 hours of effective sunlight per day, it can generate 2.22 kWh of electricity per day. According to the power consumption of new energy vehicles at about 7 km / kWh, it corresponds to an additional range of about 15 kilometers for the vehicle.

[0141] The length of the wing part is 1.5 m and the width is 1.8 m. The area of the cicada-wing photovoltaic panels 21 of the front extended body part and the rear extended body part is equivalent to the area of the solar components of the fixed photovoltaic power generation module 10. Therefore, it can be divided into three cases. First, when only the fixed photovoltaic power generation module 10 is working during driving, it corresponds to an extended range of about 15 km. Second, when the main body part and the front extended cicada wings are working during parking, it corresponds to an extended range of about 30 km. Third, when the main body part, the front extended body part and the rear extended body part are working during parking, it corresponds to an extended range of about 50 km. The double-sided gain when the cicada-wing photovoltaic panels 21 of the front extended body part and the rear extended body part are working is not considered above. If the double-sided gain is considered, it can reach an extended range of 76 km per day. Additionally, if it is considered that the driving is in areas with good sunlight such as the Qinghai-Tibet Plateau, the extended range can reach more than 100 km.

[0142] 1) When only the main body solar components are working (during driving), it corresponds to an extended range of about 15 km; 2) When the main body and the front extended cicada wings are working (during parking), it corresponds to an extended range of about 30 km; 3) When the main body, the front extended and the rear extended cicada wings are working (during parking), it corresponds to an extended range of about 50 km. The double-sided gain when the front extended and the rear extended cicada wings are working is not considered above. Additionally, if it is considered that the driving is in areas with good sunlight such as the Qinghai-Tibet Plateau, the extended range can reach about 100 km.

[0143] Based on the above crystalline silicon cells, CdTe or perovskite cells are added to the automotive glass components. Considering that the areas of the front and rear, left and right glasses are 1.8 m 2 and 1 m 2 respectively, with a total of about 3 m 2 ; Considering the battery module efficiency of 10%, then 300 * 3.5 = 1 kwh is increased, that is, an additional extended range of 7 km is increased in the ideal case. Given that the glass is installed vertically and the power generation loss is about 30%, the actual extended range should be about 5 km. This increased mileage is additional to the extended ranges measured in the first embodiment, the second embodiment and the third embodiment described above.

[0144] Taking the above first embodiment, second embodiment and third embodiment as examples, the deployable-wing photovoltaic power generation device 100 provided in the embodiments of the present application can be similarly applied to carriers such as balconies, vehicles and ships, or placed in gardens, beaches, etc. for application.

[0145] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A deployable-wing photovoltaic power generation device, characterized in that Comprising: A mounting base; And A fixed photovoltaic power generation module fixedly arranged on the top of the mounting base; And At least one winged photovoltaic power generation module located between the lower part of the fixed photovoltaic power generation module and the upper part of the bottom of the mounting base and slidably connected to the mounting base, and the winged photovoltaic power generation module is arranged parallel to the fixed photovoltaic power generation module, so that the winged photovoltaic power generation module can extend out of the mounting base or retract into the mounting base along a first direction parallel to the fixed photovoltaic power generation module; The fixed photovoltaic power generation module includes a thin-film photovoltaic cell module and / or a first crystalline silicon photovoltaic cell module, and the winged photovoltaic power generation module includes a second crystalline silicon photovoltaic cell module.

2. The deployable photovoltaic power generation device according to claim 1, characterized in that There is one said winged photovoltaic power generation module, or there are two said winged photovoltaic power generation modules arranged at intervals up and down, and the second length dimension of the winged photovoltaic power generation module along the first direction is less than or equal to the first length dimension of the fixed photovoltaic power generation module along the first direction; or There are two said winged photovoltaic power generation modules, and the two said winged photovoltaic power generation modules are slidably connected on the same horizontal plane and extend out in directions away from each other or retract in directions close to each other, and the second length dimension of the winged photovoltaic power generation module along the first direction is less than or equal to one-half of the first length dimension of the fixed photovoltaic power generation module along the first direction.

3. The deployable-wing photovoltaic power generation device according to claim 1 or 2, characterized in that The fixed photovoltaic power generation module is arranged as a four-terminal laminated solar cell structure; The fixed photovoltaic power generation module includes the thin-film photovoltaic cell module located in the upper layer, the first crystalline silicon photovoltaic cell module located in the lower layer, which are stacked, and a mounting bracket located at the bottom layer, and the first crystalline silicon photovoltaic cell module is arranged on the mounting bracket.

4. The deployable photovoltaic power generation device according to claim 3, characterized in that The thin-film photovoltaic cell module is composed of a tempered glass layer located in the upper layer, a thin-film battery layer located in the lower layer, which are stacked, and a first power output terminal led out from the side end of the thin-film battery layer; The thin-film battery layer is arranged as a perovskite battery structure, and the perovskite battery structure is deposited and prepared on the tempered glass layer.

5. The deployable photovoltaic power generation device according to claim 4, characterized in that The first crystalline silicon photovoltaic cell module is encapsulated by a first transparent plastic thin plate, a first encapsulation adhesive film layer, a first battery string array layer, a second encapsulation adhesive film layer and a first thin film backplane, which are stacked in sequence from top to bottom, and a second power output terminal is led out from the side end of the first battery string array layer; and / or The thickness of the tempered glass layer is 0.7 - 6 mm.

6. The deployable photovoltaic power generation device according to claim 3, characterized in that The winged photovoltaic power generation module is arranged as a two-terminal single-junction solar crystalline silicon battery structure; The second crystalline silicon photovoltaic cell module is configured as a cicada wing photovoltaic panel, which is encapsulated by a second transparent plastic sheet, a third packaging film layer, a second battery string array layer, a fourth packaging film layer and a second thin film backplane stacked in sequence, and a third power output terminal is provided at the side end of the second battery string array layer.

7. The photovoltaic power generation device with expandable wings according to claim 6, characterized in that: The wing-spreading photovoltaic power generation module further comprises a wing-mounted frame slidably connected to the mounting base, and the cicada-wing photovoltaic panel is arranged on the wing-mounted frame; The wing mount frame includes a frame bottom plate, transmission racks provided on opposite sides of the frame bottom plate and extending along the first direction, and at least one guide rod provided on the lower surface of the frame bottom plate and extending along the first direction; The mounting seat body includes a mounting base, and sliding grooves extending along the first direction arranged on opposite sides of the mounting base, and at least one guide rod support arranged on the upper surface of the mounting base corresponding to the guide rod, and a transmission gear and a servo motor are provided at the end of the sliding groove, the transmission rack is meshed with the corresponding transmission gear for transmission connection, and the servo motor provides power.

8. The photovoltaic power generation device with expandable wings according to claim 7, characterized in that: Mounting slots extending along the first direction are provided on opposite sides of the mounting substrate, fixing slots and the sliding slots extending along the first direction are provided at intervals above and below the mounting slots, and opposite ends of the fixed photovoltaic power generation module are inserted and fixedly connected in the fixing slots; and / or The mounting substrate and / or the frame bottom plate is a rectangular rigid frame structure made of any one of a lightweight carbon fiber material, a lightweight carbon steel material and a thin aluminum material; and / or The bottom of the frame bottom plate is provided with a triangular support grid structure; and / or The thickness of the second battery string array layer is 60 to 110 μm, and the thickness of the cicada wing photovoltaic panel is 0.8 to 3 mm.

9. The photovoltaic power generation device with expandable wings according to claim 8, characterized in that: The mounting base body also includes a shield structure, The shield structure includes a shield bottom plate located at the bottom of the mounting base plate and shield side plates arranged on opposite sides of the shield bottom plate and extending along the first direction, and the shield side plates are located at the periphery of the adjacent mounting slot plates, and the tops of the shield side plates are provided with step plates extending along the first direction and arranged parallel to the fixed photovoltaic power generation module; The opposite ends of the thin-film photovoltaic cell module of the fixed photovoltaic power generation module are fixedly connected to the step plate, and the opposite ends of the first crystalline silicon photovoltaic cell module of the fixed photovoltaic power generation module and the mounting bracket are inserted and fixedly connected in the fixing groove of the mounting substrate.

10. An electric vehicle, characterized in that, The photovoltaic power generation device with expandable wings comprises the photovoltaic power generation device with expandable wings according to any one of claims 1 to 9, and the photovoltaic power generation device with expandable wings is arranged on the top of the electric vehicle.

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