Vehicle-mounted photovoltaic module device

Abstract

The invention discloses a vehicle-mounted photovoltaic module device which is fixedly installed on the top of a vehicle body, and the vehicle-mounted photovoltaic module device is telescopic. The vehicle-mounted photovoltaic module device comprises a photovoltaic module framework, a middle photovoltaic panel structure fixed above the photovoltaic module framework, a front photovoltaic panel structure guide rail fixed below the photovoltaic module framework, a front photovoltaic panel structure fixed on the front photovoltaic panel structure guide rail, and a rear photovoltaic panel structure fixed on the rear photovoltaic panel structure guide rail. The rear photovoltaic panel structure guide rail is fixed in the middle of the photovoltaic module framework in an inserted mode, the rear photovoltaic panel structure is fixed on the rear photovoltaic panel structure guide rail, and the first winding box is fixed on the photovoltaic module framework and located at the rear end of the front photovoltaic panel structure. The second winding box is fixed on the photovoltaic module framework and located at the rear end of the rear photovoltaic panel structure; and the shell covers the middle photovoltaic panel structure and is fixed on the photovoltaic module framework.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and specifically, to a photovoltaic module device for new energy vehicles. Background Art

[0002] With the popularization of new energy vehicles, the endurance problem of new energy vehicles has always been a key concern for people. The existing pure electric new energy vehicles usually have an endurance of about dozens to thousands of kilometers. However, as the battery ages, the endurance ability gradually decreases, and endurance anxiety is still a pain point hindering the development of new energy vehicles.

[0003] There is only one fixed photovoltaic panel on the top of existing low-speed vehicles, which cannot meet the normal driving endurance requirements. Currently, the common solution to improve the endurance ability is to increase the battery energy storage to ensure normal driving. In the prior art, the technical means of using solar energy alone for endurance is not mature enough, and it is difficult to truly achieve effective conversion of solar energy to meet the supply-demand relationship of driving.

[0004] For example, patent application 202322771938.0 discloses a roof photovoltaic power generation mechanism, which includes a bracket. Opposite outer walls on the top of the bracket are fixedly connected with a first photovoltaic panel, and a second photovoltaic panel, a third photovoltaic panel, and a fourth photovoltaic panel are respectively arranged below the first photovoltaic panel. The first photovoltaic panel, the second photovoltaic panel, the third photovoltaic panel, and the fourth photovoltaic panel are connected by a folding and unfolding mechanism. The first photovoltaic panel, the second photovoltaic panel, the third photovoltaic panel, and the fourth photovoltaic panel are overlapped on top of each other from top to bottom and placed between two brackets. A support hole is opened on one outer wall of the bracket, and a horizontal sliding fit is formed between the second photovoltaic panel and the support hole. However, this application has the following disadvantages or deficiencies: when the photovoltaic panels are in the folded state, the vehicle cannot be charged during driving, and when the folded photovoltaic panels are unfolded, a large operating space is required, the strength requirement for the operator is high, and the operation difficulty is large.

[0005] Therefore, providing a vehicle-mounted photovoltaic module device that can increase the positive projection area of the photovoltaic module in the sun, maximize the reception of solar energy by the photovoltaic module and convert it into electric energy within a unit time has become an urgent problem to be solved in the industry. Summary of the Invention

[0006] In view of the above problems, one of the objectives of the present invention is to provide a vehicle-mounted photovoltaic module device that can make the photovoltaic panel freely expand and contract, increase the unfolded area of the photovoltaic module, thereby increasing the projection area of solar energy, improving the photovoltaic power generation efficiency per unit time, and reducing the number of times the user externally charges to meet the daily use requirements.

[0007] To achieve the above objective, the present invention provides the following technical solutions:

[0008] The present invention provides a vehicle-mounted photovoltaic module device, which is fixedly installed on the top of the vehicle body. The vehicle-mounted photovoltaic module device is retractable and includes: a photovoltaic module skeleton, a middle photovoltaic panel structure fixed above the photovoltaic module skeleton, a front photovoltaic panel structure guide rail fixed below the photovoltaic module skeleton, a front photovoltaic panel structure fixed on the front photovoltaic panel structure guide rail, a rear photovoltaic panel structure guide rail inserted and fixed in the middle of the photovoltaic module skeleton, a rear photovoltaic panel structure fixed on the rear photovoltaic panel structure guide rail, a first wire reel fixed on the photovoltaic module skeleton and located at the rear end of the front photovoltaic panel structure, a second wire reel fixed on the photovoltaic module skeleton and located at the rear end of the rear photovoltaic panel structure, and a housing covering the upper part of the middle photovoltaic panel structure and fixed on the photovoltaic module skeleton.

[0009] In some embodiments, the front photovoltaic panel structure guide rail and the rear photovoltaic panel structure guide rail are respectively three-stage telescopic guide rails. The three-stage telescopic guide rail includes a first-stage main guide rail, a second-stage auxiliary guide rail, and a third-stage auxiliary guide rail with gradually decreasing widths. Among them, the sum of the lengths of the second-stage auxiliary guide rail and the third-stage auxiliary guide rail is set to be greater than the length of the front photovoltaic panel structure or the rear photovoltaic panel structure. The second-stage auxiliary guide rail and the third-stage auxiliary guide rail are respectively provided with damping mechanisms, so that the second-stage auxiliary guide rail and the third-stage auxiliary guide rail have internal damping when in the closed state. Here, "having internal damping" means that the damping mechanism provides an internal damping force to slow down the moving speed of the second-stage auxiliary guide rail and the third-stage auxiliary guide rail, preventing the second-stage auxiliary guide rail and the third-stage auxiliary guide rail from moving when in the closed state, that is, during the driving of the vehicle, thereby improving the safety performance of the vehicle-mounted photovoltaic module device.

[0010] In some embodiments, the sum of the lengths of the second-stage auxiliary guide rail and the third-stage auxiliary guide rail is set to be greater than the length of the front photovoltaic panel structure or the rear photovoltaic panel structure by 50-100 millimeters.

[0011] In some embodiments, the front photovoltaic panel structure, the middle photovoltaic panel structure, and the rear photovoltaic panel structure all include a photovoltaic panel, a carbon fiber board, and a long glass fiber frame. Among them, the photovoltaic panel is fixed on the carbon fiber board, and the photovoltaic panel and the carbon fiber board are together clamped in the long glass fiber frame and fixed in the long glass fiber frame by screws.

[0012] In some embodiments, the first-stage main guide rail is fixed on the photovoltaic module skeleton by bolts, and the long glass fiber frame of the front photovoltaic panel structure or the rear photovoltaic panel structure is installed on the third-stage auxiliary guide rail.

[0013] In some embodiments, the first wire spool includes: a wire spool vortex rotating wheel, a wire spool scroll spring engaged in the wire spool vortex rotating wheel, a wire spool cable wound around the wire spool vortex rotating wheel, a wire spool upper shell engaged above the wire spool vortex rotating wheel, and a wire spool lower shell engaged at the bottom of the wire spool vortex rotating wheel. Two ends of the wire spool cable are respectively connected to a cable interface of a front photovoltaic panel structure and a controller interface of the whole vehicle.

[0014] In some embodiments, the second wire spool includes: a wire spool vortex rotating wheel, a wire spool scroll spring engaged in the wire spool vortex rotating wheel, a wire spool cable wound around the wire spool vortex rotating wheel, a wire spool upper shell engaged above the wire spool vortex rotating wheel, and a wire spool lower shell engaged at the bottom of the wire spool vortex rotating wheel. Two ends of the wire spool cable are respectively connected to a cable interface of a rear photovoltaic panel structure and a controller interface of the whole vehicle.

[0015] In some embodiments, a slot is provided in an inner cavity of the wire spool vortex rotating wheel, and a buckle is provided on an outer periphery of the wire spool scroll spring to be engaged in the inner cavity of the wire spool vortex rotating wheel. A tail end of the wire spool scroll spring is in an arrow structure and has a circular through hole. There is a notch at an outer edge of the wire spool vortex rotating wheel. The notch of the wire spool vortex rotating wheel includes: a first rectangular notch, a second rectangular notch, and an eight-shaped notch connecting the first rectangular notch and the second rectangular notch. Among them, widths of the first rectangular notch, the arrow structure at the tail end of the wire spool scroll spring, and the second rectangular notch decrease in sequence.

[0016] The wire spool cable is in a folded state, and a folded line end penetrates through the circular through hole of the wire spool scroll spring and the size of the folded line end is larger than a diameter of the circular through hole to be engaged at the circular through hole. The wire spool cable is wound around the wire spool vortex rotating wheel.

[0017] In some embodiments, the photovoltaic panel is fixedly adhered above a carbon fiber board by a structural adhesive, and the middle photovoltaic panel structure is fixed above a photovoltaic module skeleton by a structural adhesive; a front photovoltaic panel structure guide rail, a rear photovoltaic panel structure guide rail, the first wire spool, the second wire spool, and the housing are respectively fixed to the photovoltaic module skeleton by bolts.

[0018] In some embodiments, the housing is made of a transparent material, and the photovoltaic module skeleton is made of an aluminum alloy material.

[0019] Among them, the housing is made of a transparent PC material.

[0020] In some embodiments, the on-vehicle photovoltaic module device further includes: a left photovoltaic panel structure guide rail inserted in the middle of the photovoltaic module skeleton, a left photovoltaic panel structure fixed on the left photovoltaic panel structure guide rail, a right photovoltaic panel structure guide rail inserted in the middle of the photovoltaic module skeleton, and a right photovoltaic panel structure fixed on the right photovoltaic panel structure guide rail, wherein the left photovoltaic panel structure guide rail and the right photovoltaic panel structure guide rail are at different horizontal heights from the rear photovoltaic panel structure guide rail.

[0021] The present invention at least obtains the following beneficial effects: (1). When using the on-vehicle photovoltaic module device provided by the present invention, when the vehicle is in a normal stationary state, the user can open any photovoltaic panel to increase the area of the solar photovoltaic panel receiving sunlight, thereby increasing the power generation; when the vehicle is driving, the unfolded photovoltaic panel can be retracted into the photovoltaic module body, and only the middle fixed photovoltaic panel is used to receive solar energy for normal power generation; (2). The photovoltaic panel structure guide rail has its own damping in the closed state, which can prevent the photovoltaic panel structure from automatically opening during the driving of the vehicle; (3). The setting of the first wire reel and the second wire reel enables the wire harness to follow the telescoping during the pulling process of the photovoltaic panel, avoiding the phenomenon of wire harness bending damage or mechanism jamming; (4). The setting of the damping mechanism can prevent the photovoltaic panel structure from automatically opening during the driving of the vehicle. Description of the Drawings

[0022] Figure 1 Shows an exploded structural schematic diagram of the on-vehicle photovoltaic module device provided by the present invention;

[0023] Figure 2 Shows an unfolded state structural schematic diagram of an embodiment of the on-vehicle photovoltaic module device provided by the present invention;

[0024] Figure 3 Shows a structural schematic diagram of the three-stage telescopic guide rail provided by the present invention;

[0025] Figure 4 Shows a structural schematic diagram of the middle photovoltaic panel structure provided by the present invention;

[0026] Figure 5 Shows an exploded structural schematic diagram of the first wire reel provided by the present invention;

[0027] Figure 6 Shows a combined state structural schematic diagram of the wire reel cable, the wire reel scroll spring, and the wire reel scroll wheel provided by the present invention;

[0028] Figure 7 Shows an unfolded state structural schematic diagram of another embodiment of the on-vehicle photovoltaic module device provided by the present invention;

[0029] Description of the Reference Numerals:

[0030] 1 - Outer shell, 2 - Middle photovoltaic panel structure, 3 - Rear photovoltaic panel structure, 4 - First wire winding box, 5 - Guide rail for front photovoltaic panel structure, 6 - Second wire winding box, 7 - Guide rail for rear photovoltaic panel structure, 8 - Front photovoltaic panel structure, 9 - Photovoltaic module skeleton, 10 - Photovoltaic panel, 11 - Carbon fiber board, 12 - Long glass fiber frame, 13 - Tertiary auxiliary guide rail, 14 - Secondary auxiliary guide rail, 15 - Primary main guide rail, 16 - Screw fixing hole, 17 - Upper shell of wire winding box, 18 - Cable of wire winding box, 19 - Scroll spring of wire winding box, 20 - Scroll rotating wheel of wire winding box, 21 - Lower shell of wire winding box, 22 - Left photovoltaic panel structure, 23 - Right photovoltaic panel structure, A - End of scroll spring of wire winding box, B - Circular through hole, C - Notch, D - First rectangular notch, E - Second rectangular notch, F - Inverted V-shaped notch. Detailed implementation manner

[0031] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the system 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 invention. In addition, the use of the terms "first", "second", etc. to limit the components is only for the convenience of distinguishing the above components. Without otherwise stating, the above terms have no special meanings and should not be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" 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 elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] As a non-limiting implementation manner, as Figure 1 and Figure 2As shown in the figure, the on-vehicle photovoltaic module device provided by the present invention is fixedly installed on the top of the vehicle body, so that solar energy can be fully utilized. The on-vehicle photovoltaic module device provided by the present invention is retractable and includes: a housing 1, a middle photovoltaic panel structure 2, a rear photovoltaic panel structure 3, a first wire reel 4, a front photovoltaic panel structure guide rail 5, a second wire reel 6, a rear photovoltaic panel structure guide rail 7, a front photovoltaic panel structure 8, and a photovoltaic module skeleton 9.

[0035] Specifically, the middle photovoltaic panel structure 2 is fixed above the photovoltaic module skeleton 9, the front photovoltaic panel structure guide rail 5 is fixed below the photovoltaic module skeleton 9, the front photovoltaic panel structure 8 is fixed on the front photovoltaic panel structure guide rail 5, the rear photovoltaic panel structure guide rail 7 is inserted and fixed in the middle of the photovoltaic module skeleton 9, the rear photovoltaic panel structure 3 is fixed on the rear photovoltaic panel structure guide rail 7, the first wire reel 4 is fixed on the photovoltaic module skeleton 9 and is located at the rear end of the front photovoltaic panel structure 8, the second wire reel 6 is fixed on the photovoltaic module skeleton 9 and is located at the rear end of the rear photovoltaic panel structure 3, and the housing 1 covers the upper part of the middle photovoltaic panel structure 2 and is fixed on the photovoltaic module skeleton 9.

[0036] In this non-limiting embodiment, the front photovoltaic panel structure guide rail 5 and the rear photovoltaic panel structure guide rail 7 are respectively three-stage telescopic guide rails. As Figure 3 shown, the three-stage telescopic guide rail includes a first-stage main guide rail 15, a second-stage auxiliary guide rail 14, and a third-stage auxiliary guide rail 13 with gradually decreasing widths. The first-stage main guide rail 15 is fixed on the photovoltaic module skeleton 9 through bolts passing through the screw fixing holes 16. The front photovoltaic panel structure 8 or the rear photovoltaic panel structure 3 is installed on the third-stage auxiliary guide rail 13. The sum of the lengths of the second-stage auxiliary guide rail 14 and the third-stage auxiliary guide rail 13 is set to be about 50 mm greater than the length of the front photovoltaic panel structure 8 or the rear photovoltaic panel structure 3, so as to leave a shielding allowance. The second-stage auxiliary guide rail 14 and the third-stage auxiliary guide rail 13 are respectively provided with damping mechanisms, so that the second-stage auxiliary guide rail 14 and the third-stage auxiliary guide rail 13 have self-damping in the closed state, ensuring that during driving, the second-stage auxiliary guide rail 14 and the third-stage auxiliary guide rail 13 will not slide in the closed state, and enabling the front photovoltaic panel structure 8 or the rear photovoltaic panel structure 3 to expose outside the housing.

[0037] As another non-limiting embodiment, as Figure 4 shown, the front photovoltaic panel structure 8, the middle photovoltaic panel structure 2, and the rear photovoltaic panel structure 3 all include a photovoltaic panel 10, a carbon fiber board 11, and a long glass fiber frame 12. Among them, the photovoltaic panel 10 is fixedly adhered to the carbon fiber board 11 through structural adhesive, and the carbon fiber board 11 is used to strengthen the support of the photovoltaic panel 10. The photovoltaic panel 10 and the carbon fiber board 11 are then clamped together in the long glass fiber frame 12 and are fixed to the long glass fiber frame 12 again through screws, so as to reinforce the periphery of the photovoltaic panel 10 and the carbon fiber board 11 by using the long glass fiber frame 12.

[0038] During the process of pulling out the front PV panel structure 8 and the rear PV panel structure 3, in order to avoid cable bending damage and prevent jamming, the present invention provides a first wire reel and a second wire reel. As Figure 5 shown, the first wire reel 4 includes: a wire reel scroll wheel 20, a wire reel scroll spring 19 engaged in the wire reel scroll wheel 20, a wire reel cable 18 wound around the wire reel scroll wheel 20, a wire reel upper shell 17 engaged above the wire reel scroll wheel 20, and a wire reel lower shell 21 engaged at the bottom of the wire reel scroll wheel 20. Both ends of the wire reel cable 18 are respectively connected to the cable interface of the front PV panel structure 8 and the controller interface of the vehicle.

[0039] In this non-limiting embodiment, as Figure 6 shown, a slot is provided in the inner cavity of the wire reel scroll wheel 20, and a buckle is provided on the periphery of the wire reel scroll spring 19, so that it can be engaged in the inner cavity of the wire reel scroll wheel 20. The end A of the wire reel scroll spring 19 is in an arrow structure and has a circular through hole B. There is a notch C at the outer edge of the wire reel scroll wheel 20. As shown in the figure, the notch C includes: a large first rectangular notch D, a small second rectangular notch E, and an inverted V-shaped notch F connecting the large first rectangular notch D and the small second rectangular notch E.

[0040] Thus, during installation, first, the end A of the wire reel scroll spring 19 in the arrow structure is passed through the large first rectangular notch D from the inside of the wire reel scroll wheel 20, and then the end A of the wire reel scroll spring 19 in the arrow structure is rotated to an appropriate angle and moved from the large first rectangular notch D to the small second rectangular notch E through the inverted V-shaped notch F. The design of the inverted V-shaped notch F not only facilitates the movement of the end A of the wire reel scroll spring 19 in the arrow structure from the first rectangular notch D to the second rectangular notch E during the installation process, but also, since the width of the end A of the wire reel scroll spring 19 in the arrow structure is greater than the width of the second rectangular notch E, it can prevent the wire reel scroll spring 19 from moving from the second rectangular notch E to the first rectangular notch D after being subjected to elastic force, and then it can ensure that the end A of the wire reel scroll spring 19 and the wire reel scroll wheel 20 can rotate synchronously.

[0041] The coiled cable 18 of the cable reel is in a folded state, and the end of the folded line passes through the circular through-hole B of the arrow structure at the end A of the scroll spring 19 of the cable reel. The size of the circular through-hole B is smaller than that of the end of the folded line, so that it can be fixed. The coiled cable 18 of the cable reel is wound around the scroll wheel 20 of the cable reel. One end is connected to the cable interface of the front photovoltaic panel structure 8 or the rear photovoltaic panel structure 3, and the other end is connected to the controller interface of the whole vehicle. Thus, when the front photovoltaic panel structure 8 or the rear photovoltaic panel structure 3 is pulled out, one end of the coiled cable 18 connected thereto is also pulled out under force, thereby driving the synchronous rotation of the scroll spring 19 of the cable reel and the scroll wheel 20 of the cable reel. And the internal force of the scroll spring 19 of the cable reel deforms to generate a reverse pulling force, so that the coiled cable 18 is always tensioned, thereby preventing the coiled cable 18 from bending and deforming and affecting the cable performance; when the front photovoltaic panel structure 8 or the rear photovoltaic panel structure 3 is pushed back to the reset position, the scroll spring 19 of the cable reel restores the deformation to release energy, drives the rotation of the scroll wheel 20 of the cable reel, and at the same time drives the coiled cable 18 to retract.

[0042] As a non-limiting embodiment, the photovoltaic panel 10 is fixedly adhered above the carbon fiber board 11 by structural adhesive, and the middle photovoltaic panel structure 2 is fixed above the photovoltaic module skeleton 9 by structural adhesive; the front photovoltaic panel structure guide rail 5, the rear photovoltaic panel structure guide rail 7, the first cable reel 4, the second cable reel 6 and the housing 1 are respectively fixed on the photovoltaic module skeleton 9 by bolts.

[0043] In addition, the housing 1 of the present invention is made of transparent PC material, so as to protect all the components located below the housing 1 and meet the requirement of the middle photovoltaic panel structure 2 for absorbing solar energy. The photovoltaic module skeleton 9 is made of aluminum alloy material with light weight, high stress intensity and long service life.

[0044] In order to increase the power generation of the vehicle-mounted photovoltaic module device of the present invention, as another non-limiting embodiment, as Figure 7 shown, it may further include: a left photovoltaic panel structure guide rail (not shown in the figure) inserted in the middle of the photovoltaic module skeleton 9, a left photovoltaic panel structure 22 fixed on the left photovoltaic panel structure guide rail, a right photovoltaic panel structure guide rail (not shown in the figure) inserted in the middle of the photovoltaic module skeleton 9, and a right photovoltaic panel structure 23 fixed on the right photovoltaic panel structure guide rail. Among them, the left photovoltaic panel structure guide rail and the right photovoltaic panel structure guide rail are at different horizontal heights from the rear photovoltaic panel structure guide rail.

[0045] When the vehicle-mounted retractable photovoltaic module structure device of the present invention is applied to a low-speed pickup truck, the whole vehicle photovoltaic module is tested, as shown in the table:

[0046]

[0047] Table 1

[0048] As can be seen from Table 1, compared with the photovoltaic power generation of a single panel in the middle of the car roof, using the vehicle-mounted retractable photovoltaic module structure device of the present invention can increase the power generation by 115% - 134%.

[0049] Thus, when applying the vehicle-mounted retractable photovoltaic module structure device of the present invention, when the vehicle is stationary and placed in the sun, the front photovoltaic panel structure and the rear photovoltaic panel structure, or also the left photovoltaic panel structure and the right photovoltaic panel structure can be stretched and unfolded through their structural guide rails for power generation work, thereby increasing the effective area of sunlight collection, effectively shortening the charging time, obtaining more power supplement for free, performing solar power generation with the highest efficiency, and improving the practicability and working efficiency of the photovoltaic module.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention 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 for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A vehicle-mounted photovoltaic module device, which is fixedly installed on the top of the vehicle body, characterized in that, The in-vehicle photovoltaic module device is retractable and includes: a photovoltaic module framework (9), a middle photovoltaic panel structure (2) fixed above the photovoltaic module framework (9), a front photovoltaic panel structure guide rail (5) fixed below the photovoltaic module framework (9), a front photovoltaic panel structure (8) fixed on the front photovoltaic panel structure guide rail (5), a rear photovoltaic panel structure guide rail (7) inserted and fixed in the middle of the photovoltaic module framework (9), a rear photovoltaic panel structure (3) fixed on the rear photovoltaic panel structure guide rail (7), a first wire reel box (4) fixed on the photovoltaic module framework (9) and located at the rear end of the front photovoltaic panel structure (8), a second wire reel box (6) fixed on the photovoltaic module framework (9) and located at the rear end of the rear photovoltaic panel structure (3), and a housing (1) covering the upper part of the middle photovoltaic panel structure (2) and fixed on the photovoltaic module framework (9).

2. The on-vehicle photovoltaic module device according to claim 1, characterized in that, The front photovoltaic panel structure guide rail (5) and the rear photovoltaic panel structure guide rail (7) are respectively three-stage telescopic guide rails. The three-stage telescopic guide rail includes a first-stage main guide rail (15), a second-stage auxiliary guide rail (14), and a third-stage auxiliary guide rail (13) with gradually decreasing widths. Among them, the sum of the lengths of the second-stage auxiliary guide rail (14) and the third-stage auxiliary guide rail (13) is set to be greater than the length of the front photovoltaic panel structure (8) or the rear photovoltaic panel structure (3). The second-stage auxiliary guide rail (14) and the third-stage auxiliary guide rail (13) are respectively provided with damping mechanisms so that the second-stage auxiliary guide rail (14) and the third-stage auxiliary guide rail (13) have self-damping in the closed state.

3. The on-vehicle photovoltaic module device according to claim 2, characterized in that The sum of the lengths of the second-stage auxiliary guide rail (14) and the third-stage auxiliary guide rail (13) is set to be 50 - 100 millimeters greater than the length of the front photovoltaic panel structure (8) or the rear photovoltaic panel structure (3).

4. The on-vehicle photovoltaic module device according to claim 2, wherein, The front photovoltaic panel structure (8), the middle photovoltaic panel structure (2), and the rear photovoltaic panel structure (3) all include a photovoltaic panel (10), a carbon fiber board (11), and a long glass fiber frame (12). Among them, the photovoltaic panel (10) is fixed on the carbon fiber board (11), and the photovoltaic panel (10) and the carbon fiber board (11) are together clamped in the long glass fiber frame (12) and fixed in the long glass fiber frame (12) by screws.

5. The on-vehicle photovoltaic module device according to claim 1, wherein The first-stage main guide rail (15) is fixed on the photovoltaic module framework (9) by bolts, and the long glass fiber frame (12) of the front photovoltaic panel structure (8) or the rear photovoltaic panel structure (3) is installed on the third-stage auxiliary guide rail (13).

6. The on-vehicle photovoltaic module device according to claim 1, wherein The first coil box (4) and the second coil box (6) have the same structure. The first coil box (4) and the second coil box (6) respectively include: a coil box scroll wheel (20), a coil box scroll spring (19) engaged in the coil box scroll wheel (20), a coil box cable (18) wound around the coil box scroll wheel (20), a coil box upper shell (17) engaged above the coil box scroll wheel (20), and a coil box lower shell (21) engaged at the bottom of the coil box scroll wheel (20). One end of the coil box cable (18) is connected to the cable interface of the front photovoltaic panel structure (8) or the rear photovoltaic panel structure (3), and the other end of the coil box cable (18) is connected to the controller interface of the vehicle.

7. The on-vehicle photovoltaic module device according to claim 6, characterized in that, A card slot is provided in the inner cavity of the coil box scroll wheel (20). A buckle is provided on the periphery of the coil box scroll spring (19) to be engaged in the inner cavity of the coil box scroll wheel (20). The end (A) of the coil box scroll spring (19) has an arrow structure and is provided with a circular through hole (B). There is a notch (C) at the outer edge of the coil box scroll wheel (20). The notch (C) of the coil box scroll wheel (20) includes: a first rectangular notch (D), a second rectangular notch (E), and an inverted V-shaped notch (F) connecting the first rectangular notch (D) and the second rectangular notch (E). Among them, the width of the first rectangular notch (D), the width of the arrow structure at the end (A) of the coil box scroll spring (19), and the width of the second rectangular notch (E) decrease in sequence. The coil box cable (18) is in a folded state. The folded end passes through the circular through hole (B) of the coil box scroll spring (19), and the size of the folded end is larger than the diameter of the circular through hole (B) to be engaged at the circular through hole (B). The coil box cable (18) is wound around the coil box scroll wheel (20).

8. The on-vehicle photovoltaic module device according to claim 4, wherein, The photovoltaic panel (10) is fixedly adhered above the carbon fiber board (11) by structural adhesive. The middle photovoltaic panel structure (2) is fixed above the photovoltaic module skeleton (9) by structural adhesive. The front photovoltaic panel structure guide rail (5), the rear photovoltaic panel structure guide rail (7), the first coil box (4), the second coil box (6), and the housing (1) are respectively fixed to the photovoltaic module skeleton (9) by bolts.

9. The on-vehicle photovoltaic module device according to claim 1, wherein, The housing (1) is made of a transparent material, and the photovoltaic module skeleton (9) is made of an aluminum alloy material.

10. The on-vehicle photovoltaic module device according to claim 1, characterized in that The vehicle-mounted photovoltaic module device further includes: a left photovoltaic panel structure guide rail inserted in the middle of the photovoltaic module skeleton (9), a left photovoltaic panel structure (22) fixed to the left photovoltaic panel structure guide rail, a right photovoltaic panel structure guide rail inserted in the middle of the photovoltaic module skeleton (9), and a right photovoltaic panel structure (23) fixed to the right photovoltaic panel structure guide rail. Among them, the left photovoltaic panel structure guide rail and the right photovoltaic panel structure guide rail are at different horizontal heights from the rear photovoltaic panel structure guide rail (7).

Images