Photovoltaic sunshade umbrella and photovoltaic power generation system

Abstract

This application relates to the field of photovoltaic power generation technology, and discloses a photovoltaic sunshade and a photovoltaic power generation system. The photovoltaic sunshade includes a support rod, a flexible canopy, a cap located at one end of the support rod and in the middle of the flexible canopy, multiple first photovoltaic panels and multiple second photovoltaic panels respectively located in a first umbrella area and a second umbrella area of ​​the flexible canopy, multiple first umbrella ribs circumferentially hinged to the edge of the cap and extending from multiple second umbrella areas, a limiting ring fitted onto the support rod, and multiple second umbrella ribs movably connected at both ends to the limiting ring and the first umbrella ribs. When closed, the moving first and second umbrella ribs drive the multiple second photovoltaic panels toward the support rod to form a folding cylinder surrounding the support rod, and also drive two first photovoltaic panels in the first umbrella area to fold and be stored inside the folding cylinder; during unfolding, the multiple first umbrella ribs support the flexible canopy. Through the above methods, the embodiments of this application can improve the power generation efficiency of the photovoltaic sunshade.

Description

Technical Field

[0001] This application relates to the field of photovoltaic power generation technology, and in particular to a photovoltaic sunshade and a photovoltaic power generation system. Background Technology

[0002] A photovoltaic sunshade is an outdoor facility that combines sunshade and solar power generation. By integrating photovoltaic cells into the umbrella surface, it converts solar energy into electrical energy while blocking sunlight, which can then power mobile devices or be stored in batteries.

[0003] In related technologies, photovoltaic sunshades employ strip-shaped photovoltaic panels that extend along the length of the umbrella ribs, positioned directly on the umbrella surface corresponding to the ribs. These panels sway with the ribs as the umbrella unfolds or closes. However, the photovoltaic panels only cover a small portion of the umbrella surface, resulting in a limited effective power generation area and low power generation efficiency when unfolded. Summary of the Invention

[0004] In view of the problems existing in the background art, the purpose of this application is to provide a photovoltaic sunshade and a photovoltaic power generation system that overcomes or at least partially solves the above problems.

[0005] According to a first aspect of this application, a photovoltaic sunshade umbrella is provided, comprising a support rod, an umbrella cap, a flexible umbrella surface, a plurality of first photovoltaic panels, a plurality of second photovoltaic panels, a plurality of first umbrella ribs, a plurality of second umbrella ribs, and a limiting ring. The umbrella cap is disposed at one end of the support rod. The umbrella cap is disposed in the middle of the flexible umbrella surface, which has a plurality of first umbrella areas and a plurality of second umbrella areas, which are staggered circumferentially distributed. Two first photovoltaic panels are disposed opposite each other within a first umbrella area, and each second photovoltaic panel is disposed in a matching second umbrella area. A plurality of first umbrella ribs are circumferentially hinged to the edge of the umbrella cap and extend distributedly on the plurality of second umbrella areas. The limiting ring is sleeved on the support rod. The two ends of each second umbrella rib are movably connected to the limiting ring and a first umbrella rib, respectively. The limiting ring, which reciprocates up and down along the support rod, drives the plurality of first umbrella ribs and the plurality of second umbrella ribs to move to close or open the flexible umbrella surface. During the folding process of the flexible umbrella canopy, the first and second umbrella ribs are used to move multiple second photovoltaic panels toward the support rod to form a folding cylinder surrounding the support rod, and also to fold the two first photovoltaic panels on the first umbrella area and store them in the folding cylinder; during the unfolding process of the flexible umbrella canopy, multiple first umbrella ribs distributed on multiple second umbrella areas are used to support the flexible umbrella canopy.

[0006] In one or more of the above optional embodiments, the first umbrella area is a triangular area and the second umbrella area is a rectangular area; each first photovoltaic panel is a right-angled triangle and the right-angled sides of two first photovoltaic panels are arranged parallel to each other in a first umbrella area, and each second photovoltaic panel is rectangular. When the flexible umbrella surface is in the closed state, multiple first umbrella ribs are arranged parallel to each other and the closing tube is prism-shaped. The two first photovoltaic panels on each first umbrella area are folded together and closed into the closing tube along the folding gap between the two opposite right-angled sides.

[0007] In one or more of the above optional embodiments, the photovoltaic sunshade also includes a limiting and locking mechanism for limiting the unfolded state of the flexible canopy. The limiting and locking mechanism includes a limiting hole formed on a limiting ring, a limiting pin movably passing through the limiting hole, a first limiting crossbar fixedly connected to the limiting pin and limited within the limiting hole, a first elastic element sleeved on the limiting pin and abutting against the first limiting crossbar, and a first limiting groove formed on a support rod. When the flexible canopy is in the unfolded state, the limiting hole communicates with the first limiting groove, the limiting pin is inserted into the first limiting groove to limit the limiting ring within the first limiting groove, and the first elastic element generates an elastic force to prevent the limiting pin from disengaging from the first limiting groove.

[0008] In one or more of the above optional embodiments, the photovoltaic sunshade also includes a limiting and locking mechanism for limiting the unfolded state of the flexible canopy. The limiting and locking mechanism includes a first mounting groove formed in the support rod, a limiting button slidably disposed in the first mounting groove, a second limiting crossbar fixedly connected to the limiting button and confined within the first mounting groove, a second elastic element sleeved on the limiting button and abutting against the second limiting crossbar, and a limiting block disposed at the end of the support rod. The limiting block and the umbrella cap are respectively disposed at two opposite ends of the support rod. The first mounting groove is disposed between the umbrella cap and the limiting block, and the limiting block is used to limit the movement stroke of the limiting ring. When the flexible canopy is in the unfolded state, the head of the limiting button extends out of the first mounting groove, and the limiting ring abuts against the limiting button along the direction from the umbrella cap towards the limiting block. The second elastic element generates an elastic force to prevent the limiting button from retracting into the first mounting groove.

[0009] In one or more of the above optional embodiments, the photovoltaic sunshade includes a pole and a base disposed on the pole, with the base and support rod disposed at opposite ends of the pole.

[0010] In one or more of the above optional embodiments, each first photovoltaic panel and each second photovoltaic panel includes a support plate disposed on the flexible umbrella surface and photovoltaic thin-film solar cells disposed on the support plate; the photovoltaic thin-film solar cells are provided with positive electrode tabs and negative electrode tabs, and the positive electrode tabs on multiple photovoltaic thin-film solar cells are electrically connected through a positive electrode bus, and the negative electrode tabs on multiple photovoltaic thin-film solar cells are electrically connected through a negative electrode bus. A first wire passage, a second wire passage, and a third wire passage are respectively opened inside the umbrella cap, the support rod, and the upright, and an electrical connector is provided on the base. The positive electrode bus and the negative electrode bus pass through the first wire passage, the second wire passage, and the third wire passage in sequence and are then electrically connected to the electrical connector, which is used for electrical connection with the inverter.

[0011] In one or more of the above optional embodiments, the photovoltaic sunshade includes a base assembly, which includes a column and a base disposed on one end of the column. The photovoltaic sunshade also includes the base assembly and an angle adjustment mechanism connecting the base assembly and the umbrella cap. The angle adjustment mechanism is used to adjust the tilt angle of the flexible umbrella surface in the unfolded state and to adjust the relative distance between the collapsible tube and the column in the folded state. The angle adjustment mechanism includes a support arm and a hanging rod. One end of the hanging rod is rotatably connected to the other end of the column. The first end of the support arm is movably disposed on the column, the middle part of the support arm is rotatably connected to the other end of the hanging rod, and the tail end of the support arm is rotatably connected to the umbrella cap.

[0012] In one or more of the above optional embodiments, a second umbrella area is aligned with the support arm. The second photovoltaic panel in the second umbrella area aligned with the support arm includes a first part and a second part. A clearance gap is provided between the first part and the second part. When the support arm is suspended on the column by the hanger and the flexible umbrella surface is in the unfolded state, a first umbrella rib and the support arm abut against the opposite sides of the flexible umbrella surface located at the clearance gap.

[0013] In one or more of the above optional embodiments, the photovoltaic sunshade also includes a sliding assembly that can slide along the column. The column has a sliding groove for the sliding assembly to slide through, and an upper limit hole and a lower limit hole that are both connected to the sliding groove. The upper limit hole and the lower limit hole are distributed vertically along the sliding direction of the sliding assembly. The sliding assembly includes a slider, a positioning pin, a third elastic element, and a handle. The slider is slidably disposed in the sliding groove and has a second mounting groove. The positioning pin is slidably disposed in the second mounting groove. The outer wall of the positioning pin has a protruding limiting baffle for limiting the positioning pin within the second mounting groove. The third elastic element is sleeved on the positioning pin and abuts against the limiting baffle. The positioning pin is used to extend through the opening of the second mounting groove to insert into the upper limit hole and the lower limit hole respectively, so as to position the sliding assembly at different positions on the column. The third elastic element is used to generate an elastic force to prevent the positioning pin from retracting into the second mounting groove. The slider is connected to the handle, and the head end of the support arm is rotatably connected to the handle.

[0014] In one or more of the above optional embodiments, each first photovoltaic panel and each second photovoltaic panel includes a support plate disposed on the flexible umbrella surface and photovoltaic thin-film solar cells disposed on the support plate; the photovoltaic thin-film solar cells are provided with positive electrode tabs and negative electrode tabs, the positive electrode tabs on multiple photovoltaic thin-film solar cells are electrically connected through a positive electrode bus, and the negative electrode tabs on multiple photovoltaic thin-film solar cells are electrically connected through a negative electrode bus. The support arm is provided with a fourth wire passage and a clearance opening, the fourth wire passage extending along the tail end of the support arm to the middle of the support arm, and the clearance opening communicating with the fourth wire passage; the column is provided with a fifth wire passage, one end of the hanger rod is rotatably connected to the column within the fifth wire passage, and the other end of the hanger rod passes through the clearance opening and is rotatably connected to the middle of the support arm within the fourth wire passage; the hanger rod is provided with a sixth wire passage, the two ends of the sixth wire passage being respectively connected to the fourth wire passage and the fifth wire passage. The base is equipped with an electrical connector. The positive bus and the negative bus pass through the fourth, sixth and fifth wire passages in sequence and then connect to the electrical connector. The electrical connector is used to connect to the inverter.

[0015] According to a second aspect of this application, a photovoltaic power generation system is provided, including the aforementioned photovoltaic sunshade.

[0016] The beneficial effects of this application embodiment are as follows: The photovoltaic sunshade provided in this application embodiment, by staggering the first umbrella area and the second umbrella area on the flexible umbrella surface, and setting two opposing first photovoltaic panels in each first umbrella area, and setting one second photovoltaic panel in the corresponding second umbrella area. When the umbrella surface is unfolded, the first photovoltaic panels in the first umbrella area and the second photovoltaic panels in the second umbrella area can effectively receive sunlight and generate electricity; when the umbrella surface is closed, the first photovoltaic panels are stored in the closing tube, while the multiple second photovoltaic panels surrounding the closing tube can still continue to generate photovoltaic power. Compared with the prior art design of directly setting strip-shaped photovoltaic panels extending along the length of the umbrella ribs at the corresponding positions on the umbrella surface and the umbrella ribs, the photovoltaic sunshade of this application embodiment can realize the power generation function when the flexible umbrella surface is unfolded and closed, and the first photovoltaic panels increase the overall effective power generation area when the umbrella surface is unfolded, thereby helping to improve the power generation efficiency of the photovoltaic sunshade. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 A schematic diagram of a photovoltaic sunshade provided in this application embodiment when the flexible canopy is in the unfolded state and viewed from one angle.

[0019] Figure 2 A schematic diagram of a photovoltaic sunshade provided in this application embodiment when the flexible canopy is in the unfolded state and viewed from another angle;

[0020] Figure 3 A perspective view of a photovoltaic sunshade provided in an embodiment of this application, showing the flexible canopy in the process of unfolding and retracting;

[0021] Figure 4 A perspective view of a photovoltaic sunshade when its flexible canopy is closed, provided as an embodiment of this application;

[0022] Figure 5 A schematic diagram of the collapsible tube of a photovoltaic sunshade provided in an embodiment of this application;

[0023] Figure 6 A schematic diagram of a photovoltaic sunshade umbrella in the unfolded state of the flexible canopy, provided as an embodiment of this application;

[0024] Figure 7 for Figure 6 Enlarged view of section I;

[0025] Figure 8 for Figure 6 Enlarged view of section II;

[0026] Figure 9 A cross-sectional schematic diagram of a photovoltaic sunshade provided in an embodiment of this application when the flexible canopy is in the unfolded state;

[0027] Figure 10 A partial exploded view of a photovoltaic sunshade provided in an embodiment of this application;

[0028] Figure 11 A cross-sectional schematic diagram of a photovoltaic sunshade provided in an embodiment of this application;

[0029] Figure 12 A partial schematic diagram of a photovoltaic sunshade provided in an embodiment of this application;

[0030] Figure 13 for Figure 12 Enlarged view of section III;

[0031] Figure 14 A perspective view of a photovoltaic sunshade provided in this application embodiment when the angle adjustment mechanism is in the extended state;

[0032] Figure 15 for Figure 6 Enlarged view of section IV;

[0033] Figure 16A schematic diagram showing the state of a photovoltaic sunshade after the support arm and hanger of the angle adjustment mechanism move in accordance with the swinging trend, as provided in an embodiment of this application;

[0034] Figure 17 A cross-sectional schematic diagram of the support arm and hanger of a photovoltaic sunshade after the angle adjustment mechanism moves away from the swing tendency, as provided in the embodiments of this application;

[0035] Figure 18 Another cross-sectional view of a photovoltaic sunshade provided in this application embodiment after the support arm and hanger of the angle adjustment mechanism have moved away from the swing tendency.

[0036] Figure 19 A schematic diagram of a photovoltaic sunshade umbrella in the unfolded state of the flexible canopy, provided as an embodiment of this application;

[0037] Figure 20 for Figure 19 Enlarged view at point V;

[0038] Figure 21 A partial cross-sectional schematic diagram of a photovoltaic sunshade provided in an embodiment of this application;

[0039] Figure 22 for Figure 21 A magnified view of section VI. Detailed Implementation

[0040] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0041] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0042] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0043] Please see Figures 1-5The photovoltaic sunshade umbrella 100 includes a support rod 1, an umbrella cap 2, a flexible umbrella surface 3, multiple first photovoltaic panels 4, multiple second photovoltaic panels 5, multiple first umbrella ribs 6, multiple second umbrella ribs 7, and a limiting ring 8.

[0044] The umbrella cap 2 is located at one end of the support rod 1 and in the middle of the flexible umbrella surface 3. The flexible umbrella surface 3 has multiple first umbrella areas 31 and multiple second umbrella areas 32, which are staggered and circumferentially distributed. Two first photovoltaic panels 4 are arranged opposite each other in a first umbrella area 31, and each second photovoltaic panel 5 is matched and arranged on a second umbrella area 32.

[0045] Multiple first umbrella ribs 6 are circumferentially hinged to the edge of the umbrella cap 2 and extend to multiple second umbrella areas 32. Each second umbrella rib 7 has a limiting ring 8 and a first umbrella rib 6 movably connected to its two ends. The limiting ring 8 is fitted onto the support rod 1 and reciprocates up and down along the support rod 1 to drive the multiple first umbrella ribs 6 and multiple second umbrella ribs 7 to move and close or open the flexible umbrella surface 3. Understandably, when the limiting ring 8 slides upward along the support rod 1 in a first direction, it drives the multiple first umbrella ribs 6 and multiple second umbrella ribs 7 to rotate, thereby causing multiple umbrella areas of the flexible umbrella surface 3 to move away from the support rod 1 to open the flexible umbrella surface 3; when the limiting ring 8 slides downward along the support rod 1 in a second direction, it drives the multiple first umbrella ribs 6 and multiple second umbrella ribs 7 to rotate, thereby causing multiple umbrella areas of the flexible umbrella surface 3 to move towards the support rod 1 in a closed manner, thus closing the flexible umbrella surface 3. The first and second directions are opposite to each other.

[0046] During the closing process of the flexible umbrella surface 3, the first umbrella rib 6 and the second umbrella rib 7 are used to drive multiple second photovoltaic panels 5 to move toward the support rod 1 to form a closing cylinder T surrounding the support rod 1, and are also used to drive the two first photovoltaic panels 4 on the first umbrella area 31 to fold in half and be stored in the closing cylinder T; during the unfolding process of the flexible umbrella surface 3, multiple first umbrella ribs 6 distributed on multiple second umbrella areas 32 are used to support the flexible umbrella surface 3.

[0047] The photovoltaic sunshade 100 provided in this application embodiment features a first umbrella area 31 and a second umbrella area 32 staggered on a flexible umbrella surface 3. Two opposing first photovoltaic panels 4 are disposed in each first umbrella area 31, and a second photovoltaic panel 5 is disposed in the corresponding second umbrella area 32. When the umbrella surface is unfolded, both the first photovoltaic panels 4 in the first umbrella area 31 and the second photovoltaic panels 5 in the second umbrella area 32 can effectively receive sunlight and generate electricity. When the umbrella surface is closed, the first photovoltaic panels 4 are housed within a folding cylinder T, while the multiple second photovoltaic panels 5 surrounding the folding cylinder T continue to generate photovoltaic power. Compared to the prior art design where strip-shaped photovoltaic panels extending along the length of the umbrella ribs are directly disposed at positions corresponding to the umbrella surface and ribs, the photovoltaic sunshade 100 of this application embodiment can generate electricity both when the flexible umbrella surface 3 is unfolded and when it is closed. Furthermore, the first photovoltaic panels 4 increase the overall effective power generation area when the umbrella surface is unfolded, thereby improving the power generation efficiency of the photovoltaic sunshade 100.

[0048] In some embodiments, there is a gap between the two first photovoltaic panels 4 on the first umbrella area 31, and there is a gap between the first photovoltaic panel 4 on the first umbrella area 31 and the second photovoltaic panel 5 on the second umbrella area 32 adjacent to the first umbrella area 31; thus preventing interference between different photovoltaic panels.

[0049] In some embodiments, a first umbrella rib 6 is provided on each second umbrella area 32. Each first umbrella rib 6 and each second umbrella rib 7 are respectively provided on the opposite sides of each first photovoltaic panel 4 and each second photovoltaic panel 5 on the flexible umbrella surface 3.

[0050] In some embodiments, when the flexible umbrella surface 3 is in a folded state, each first umbrella rib 6 is arranged parallel to the support rod 1, and each second photovoltaic panel 5 is arranged parallel to the support rod 1. By setting each first umbrella rib 6 to be parallel to the support rod 1 and each second photovoltaic panel 5 to be parallel to the support rod 1, the folding cylinder T structure formed by the multiple second photovoltaic panels 5 is more compact, which helps to reduce the overall space occupied after folding.

[0051] Please see Figure 6 and Figure 7In some embodiments, the first photovoltaic panel 4 includes a first edge 41 and a second edge 42, which are arranged opposite to each other and form a preset included angle. In the two first photovoltaic panels 4 disposed within the first umbrella area 31, the second edge 42 of one first photovoltaic panel 4 and the first edge 41 of the other first photovoltaic panel 4 are spaced apart to form a first folding gap a1. During the folding process of the flexible umbrella surface 3, the two first photovoltaic panels 4 on the first umbrella area 31 can fold along the first folding gap a1. During the folding process, the two first photovoltaic panels 4 swing towards the support rod 1 and are finally stored inside the folding cylinder T.

[0052] In some embodiments, among the two first photovoltaic panels 4 disposed in the first umbrella area 31, the second edge 42 of one first photovoltaic panel 4 is disposed parallel to the first edge 41 of the other first photovoltaic panel 4.

[0053] In some embodiments, the first photovoltaic panel 4 further includes a third edge 43, wherein the first edge 41 and the second edge 42 intersect and the two ends of the third edge 43 are connected to the first edge 41 and the second edge 42. In the two first photovoltaic panels 4 disposed within the first umbrella area 31, the intersection point of the first edge 41 and the second edge 42 of each first photovoltaic panel 4 faces the side edge of the first umbrella area 31 connected to the umbrella cap 2, and the third edge 43 of each first photovoltaic panel 4 is disposed at the side edge of the first umbrella area 31 away from the umbrella cap 2.

[0054] Please see Figures 6-8 In some embodiments, the second photovoltaic panel 5 includes a third edge 51 and a fourth edge 52, which are arranged opposite to each other. Within adjacent first umbrella areas 31 and second umbrella areas 32, among adjacent first photovoltaic panels 4 and second photovoltaic panels 5, a first edge 41 and a fourth edge 52 are arranged adjacently, and a second folding gap a2 is formed between adjacent first edges 41 and fourth edges 52; a second edge 42 and a third edge 51 are arranged between adjacent edges, forming a third folding gap a3. During the retraction of the flexible umbrella surface 3, among the two first photovoltaic panels 4 in the second umbrella area 32, one first photovoltaic panel 4 swings relative to an adjacent second photovoltaic panel 5 along the second folding gap a2 toward the support rod 1, and the other first photovoltaic panel 4 swings relative to another adjacent second photovoltaic panel 5 along the third folding gap a3 toward the support rod 1.

[0055] In some embodiments, adjacent first edges 41 and fourth edges 52 are arranged parallel to each other, and adjacent second edges 42 and third edges 51 are arranged parallel to each other.

[0056] In some embodiments, when the flexible umbrella surface 3 is in a closed state, the plurality of first umbrella ribs 6 are arranged in parallel to each other, and each third edge 51 and each fourth edge 52 are arranged in parallel to each other.

[0057] Please see Figures 5-8 In some embodiments, the first umbrella area 31 is a triangular area and the second umbrella area 32 is a rectangular area; each first photovoltaic panel 4 is a right-angled triangle and the right-angled sides of two first photovoltaic panels 4 are arranged parallel to each other in a first umbrella area 31, and each second photovoltaic panel 5 is rectangular. When the flexible umbrella surface 3 is in the folded state, multiple first umbrella ribs 6 are arranged parallel to each other and the folding tube T is prism-shaped. The two first photovoltaic panels 4 on each first umbrella area 31 are folded together and closed into the folding tube T along the folding gap between the two opposite right-angled sides.

[0058] In this embodiment, the two relatively parallel right-angled sides are the first edge 41 of one first photovoltaic panel 4 and the second edge 42 of the other first photovoltaic panel 4, respectively. The folding gap between the two opposing right-angled sides is the first folding gap a1. When the photovoltaic sunshade 100 provided in this application is stored, the folding tube T is prismatic, and the two first photovoltaic panels 4 on each first umbrella area 31 are folded together and folded into the folding tube T. The overall structure is relatively stable and occupies little space. Furthermore, no additional binding straps are required for binding and fixing, which is beneficial to improving the convenience of use and avoiding the problem that binding straps and other binding structures would block the second photovoltaic panel 5, thereby reducing the power generation efficiency of the second photovoltaic panel 5.

[0059] Please see Figure 6 , Figure 9 and Figure 10 In some embodiments, the support rod 1 includes a top end and a bottom end that are disposed opposite to each other, and the umbrella cap 2 includes a mounting plate 21. The mounting plate 21 is disposed at the top end of the support rod 1 and is perpendicular to the support rod 1. A plurality of first umbrella ribs 6 are equally spaced along the circumference of the mounting plate 21.

[0060] In some embodiments, the flexible umbrella surface 3 includes a third umbrella area 33, which is located in the middle of the flexible umbrella surface 3. The first umbrella area 31 and the second umbrella area 32 are distributed alternately around the third umbrella area 33 and are respectively connected to the periphery of the third umbrella area 33.

[0061] In some embodiments, a mounting rod 212 is provided at one end of the mounting plate 21 facing away from the support rod 1, and a third umbrella area 33 is provided on the side of the mounting plate 21 facing away from the limiting ring 8, with the mounting rod 212 passing through the third umbrella area 33. When the flexible umbrella surface 3 is in a closed state, and the top and bottom ends of the support rod 1 are arranged along the direction of gravity, each first umbrella area 31 and each second umbrella area 32 are suspended from the periphery of the third umbrella area 33.

[0062] In some embodiments, the umbrella cap 2 includes a mounting plate 21, which is a regular polygon. The number of first umbrella ribs 6 is the same as the number of sides of the regular polygon. One end of a first umbrella rib 6 is movably connected to one side of the regular polygon, and a second photovoltaic panel 5 is correspondingly disposed on one side of one side of the regular polygon.

[0063] In some embodiments, the shape of the third umbrella area 33 matches that of the mounting plate 21.

[0064] In some embodiments, along the circumference of the mounting plate 21, a plurality of mounting seats 211 corresponding one-to-one with the first umbrella ribs 6 are sequentially provided on the side wall of the mounting plate 21. The mounting seat 211 is provided with a first mounting shaft 2111, and one end of a first umbrella rib 6 is rotatably connected to a first mounting shaft 2111.

[0065] In some embodiments, a plurality of mounting bases 211 are arranged around the axis of the support rod 1, the axes of all first mounting shafts 2111 are arranged perpendicular to the axis of the support rod 1, and the axes of all first mounting shafts 2111 are tangent to a reference circle, wherein the reference circle is located in a plane perpendicular to the axis of the support rod 1, and the axis of the support rod 1 passes through the center of the reference circle.

[0066] In some embodiments, in the second umbrella rib 7 and the corresponding first umbrella rib 6, a mounting hole 61 is provided between the end of the first umbrella rib 6 away from the first mounting shaft 2111 and the connection between the first umbrella rib 6 and the first mounting shaft 2111. The axis of the mounting hole 61 of the first umbrella rib 6 is parallel to the axis of the first mounting shaft 2111 connected to the first umbrella rib 6. A second mounting shaft 71 is provided at one end of the second umbrella rib 7, and the second mounting shaft 71 passes through the mounting hole 61.

[0067] In some embodiments, along the circumference of the limiting ring 8, the limiting ring 8 is provided with a plurality of grooves 81, and a third mounting shaft 811 is provided in the grooves 81. One end of a second umbrella rib 7 away from the first umbrella rib 6 is rotatably connected to a third mounting shaft 811. The axis of the third mounting shaft 811 is parallel to the axis of the second mounting shaft 71 of the second umbrella rib 7 corresponding to the third mounting shaft 811.

[0068] Please see Figure 2 and Figure 11In some embodiments, the flexible canopy 3 is located at the top of the support rod 1, and the bottom end of the support rod 1 extends vertically to connect with the base 92 or to the base 92 via a vertical pole 91. That is, the photovoltaic sunshade 100 is a first structural umbrella that opens at the top. In the first structural umbrella, the photovoltaic sunshade 100 also includes a limiting locking mechanism for limiting the unfolded state of the flexible canopy 3. The limiting locking mechanism includes a limiting hole 82 opened on the limiting ring 8, a limiting pin 83 movably passing through the limiting hole 82, a first limiting crossbar 84 fixedly connected to the limiting pin 83 and limited within the limiting hole 82, a first elastic member 85 sleeved on the limiting pin 83 and abutting against the first limiting crossbar 84, and a first limiting groove 13 opened on the support rod 1.

[0069] When the flexible umbrella surface 3 is in the unfolded state, at the position of the limiting ring 8, the limiting hole 82 communicates with the first limiting groove 13, and the limiting pin 83 is inserted into the first limiting groove 13 to limit the limiting ring 8 within the first limiting groove 13. The first elastic element 85 generates an elastic force to prevent the limiting pin 83 from disengaging from the first limiting groove 13. When it is necessary to unlock the limiting locking mechanism, the limiting pin 83 can be pulled, causing the limiting pin 83 to overcome the elastic force of the first elastic element 85 and disengage from the first limiting groove 13.

[0070] In some embodiments, along the axial direction of the limiting hole 82, the inner wall of the limiting hole 82 is provided with a first step portion 821 and a second step portion 822. The first step portion 821 and the second step portion 822 are arranged opposite to each other along the axial direction of the limiting hole 82. A first limiting crossbar 84 is disposed between the first step portion 821 and the second step portion 822. A first elastic member 85 is disposed between the first limiting crossbar 84 and the first step portion 821. One end of the first elastic member 85 abuts against the first step portion 821, and the other end of the first elastic member 85 abuts against the first limiting crossbar 84. The first limiting crossbar 84 is limited between the first step portion 821 and the second step portion 822 to prevent the limiting pin 83 from disengaging from the limiting hole 82.

[0071] In some embodiments, the first elastic element 85 is a spring.

[0072] In some embodiments, a pull ring 831 is provided at the end of the limiting pin 83 away from the first limiting groove 13. The pull ring 831 is used for the user to pull the limiting pin 83 to unlock the limiting locking mechanism.

[0073] In some embodiments, the number of limiting locking mechanisms is two, and the two limiting locking mechanisms are arranged opposite each other along the radial direction of the support rod 1.

[0074] Please see Figures 12-14In some other embodiments, relative to the first structure umbrella, the photovoltaic sunshade 100 can also be a second umbrella structure with a support rod 1 set on one side of the column 93. In the second structure umbrella, the flexible umbrella surface 3 is located on the side of the column 93 and opens. The photovoltaic sunshade 100 includes another limiting and locking mechanism that has the same function as the aforementioned limiting and locking mechanism but has a different structure.

[0075] Specifically, the limiting locking mechanism includes a first mounting groove 14 formed in the support rod 1, a limiting button 15 slidably disposed in the first mounting groove 14, a second limiting crossbar 16 fixedly connected to the limiting button 15 and limited within the first mounting groove 14, a second elastic member 17 sleeved on the limiting button 15 and abutting against the second limiting crossbar 16, and a limiting block 18 disposed on the end of the support rod 1.

[0076] Furthermore, the limiting block 18 and the umbrella cap 2 are respectively located at the bottom and top ends of the support rod 1. The first mounting groove 14 is located between the umbrella cap 2 and the limiting block 18. The limiting block 18 is used to limit the movement stroke of the limiting ring 8. When the flexible umbrella surface 3 is in the unfolded state, the head 151 of the limiting button 15 extends out of the first mounting groove 14, and the limiting ring 8 abuts against the limiting button 15 along the direction from the umbrella cap 2 towards the limiting block 18. The second elastic element 17 is used to generate an elastic force to prevent the limiting button 15 from retracting into the first mounting groove 14. When it is necessary to unlock the limiting locking mechanism, the limiting button 15 can be pressed, so that the limiting button 15 overcomes the elastic force of the second elastic element 17 and enters the first mounting groove 14 to release the abutment state with the limiting ring 8.

[0077] In some embodiments, a first limiting portion 141 is provided at the opening of the first mounting groove 14, and a second limiting portion 142 is provided on the inner sidewall of the first mounting groove 14. The limiting button 15 includes a head 151 and a main body 152. A second limiting crossbar 16 is fixed to the outer sidewall of the main body 152 near the head 151. A second elastic member 17 is sleeved on the main body 152. Along the opening of the first mounting groove 14 toward the bottom of the first mounting groove 14, the second elastic member 17 is located between the second limiting crossbar 16 and the second limiting portion 142. The opposite ends of the second elastic member 17 abut against the second limiting crossbar 16 and the second limiting portion 142, respectively. The elastic force of the second elastic member 17 acts on the second limiting crossbar 16, causing the head 151 to extend out of the first mounting groove 14 through the opening of the first mounting groove 14. The first limiting portion 141 abuts against the second limiting crossbar 16 to prevent the limiting button 15 from coming out of the opening of the first mounting groove 14.

[0078] In some embodiments, the head 151 of the limit button 15 is provided with an inclined surface 1511, which is disposed toward the limit block 18. The inclined surface 1511 is used to guide the limit ring 8 to pass over the limit button 15 when the limit ring 8 slides along the limit block 18 toward the umbrella cap 2. During the process of the limit ring 8 passing over the limit button 15, the inner wall of the limit ring 8 abuts against the inclined surface 1511. The head 151 of the limit button 15 retracts into the first mounting groove 14 under the squeezing action of the limit ring 8. After the limit ring 8 passes over the limit button 15, the limit button 15 extends out of the first mounting groove 14 again under the elastic force of the second elastic member 17 and returns to the initial state so as to limit the limit ring 8 when the flexible umbrella surface 3 is in the unfolded state.

[0079] In some embodiments, the second elastic element 17 is a spring.

[0080] In some embodiments, the limiting block 18 is disposed around the support rod 1 circumferentially.

[0081] It is worth noting that when the length of support rod 1 is relatively short, for example... Figure 12 In the illustrated embodiment, the limiting block 18 serves to prevent the limiting ring 8 from sliding out of the support rod 1. However, when the support rod 1 has a relatively long length, for example... Figure 9 In the embodiment shown, the maximum travel of the limiting ring 8 in the direction from the top end to the bottom end is located on the support rod 1, so the limiting block 18 can be omitted.

[0082] In some embodiments, each first photovoltaic panel 4 and each second photovoltaic panel 5 includes a support plate (not shown) disposed on the flexible umbrella surface 3 and a photovoltaic thin-film battery cell (not shown) disposed on the support plate.

[0083] In some embodiments, the surface of the backing plate facing away from the photovoltaic thin-film solar cell is bonded and fixed to the flexible umbrella surface 3.

[0084] Please see Figure 6 and Figure 15 In the above embodiments, the photovoltaic thin-film solar cells are provided with positive electrode tabs b1 and negative electrode tabs b2. The positive electrode tabs b1 on multiple photovoltaic thin-film solar cells are electrically connected through a positive electrode bus c1, and the negative electrode tabs b2 on multiple photovoltaic thin-film solar cells are electrically connected through a negative electrode bus c2.

[0085] In some embodiments, both the positive electrode tab b1 and the negative electrode tab b2 are disposed at one end of the photovoltaic thin-film cell near the support rod 1.

[0086] Please see Figure 9In some embodiments, for the first structure umbrella with top opening, the photovoltaic sunshade 100 includes a pole 91 and a base 92 disposed on the pole 91, with the base 92 and the support rod 1 respectively disposed at both ends of the pole 91.

[0087] The umbrella cap 2 has a first wire passage d1, the support rod 1 has a second wire passage d2, the upright 91 has a third wire passage d3, and the base 92 has an electrical connector. The positive bus c1 and the negative bus c2 pass through the first wire passage d1, the second wire passage d2, and the third wire passage d3 in sequence to extend to the base 92. The base 92 has an electrical connector (not shown in the figure). The positive bus c1 and the negative bus c2 pass through the first wire passage d1, the second wire passage d2, and the third wire passage d3 in sequence and then connect to the electrical connector. The electrical connector is used for electrical connection with the inverter.

[0088] Please see Figure 14 and Figures 16-18 In other embodiments, for the second structure umbrella with side opening, the base assembly includes a column 93 and a base 92 disposed at one end of the column 93. The photovoltaic sunshade 100 also includes a base assembly and an angle adjustment mechanism 10 connecting the base assembly and the umbrella cap 2. The angle adjustment mechanism 10 is used to adjust the tilt angle of the flexible umbrella surface 3 in the unfolded state and to adjust the relative distance between the folding tube T in the folded state and the column 93.

[0089] The angle adjustment mechanism includes a support arm 101 and a rod 102. One end of the rod 102 is rotatably connected to the other end of the column 93. The first end of the support arm 101 is movably mounted on the column 93. The middle part of the support arm 101 is rotatably connected to the other end of the rod 102. The tail end of the support arm 101 is rotatably connected to the umbrella cap 2.

[0090] There is a movable connection between the support arm 101, the boom 102, and the column 93. During use, firstly, referring to... Figure 14 When the first end of the support arm 101 slides along the column 93 toward the base 92, the support arm 101 tends to move toward the column 93. Since one end of the rod 102 is rotatably connected to the column 93 and the other end is rotatably connected to the middle of the support arm 101, during the aforementioned movement of the support arm 101, the rod 102 will also tend to swing toward the column 93. Figure 16 As shown, if the flexible umbrella surface 3 is already in a folded state, the folded flexible umbrella surface 3 will further fold towards the column 93 due to the contact and swinging trends of the aforementioned hanging rod 102 and support arm 101; that is, the angle adjustment mechanism 10 can be used to adjust the relative distance between the folded tube T and the column 93 in the folded state. Conversely, the support arm 101 and hanging rod 102 can also form a swinging trend away from the column 93.

[0091] Secondly, when the angle at which sunlight directly hits the ground changes, in order for the first photovoltaic panel 4 and the second photovoltaic panel 5 to better absorb solar energy for power generation, the tilt angle of the flexible umbrella surface 3 relative to the ground needs to be adjusted. Therefore, when an external force acts on the umbrella cap 2 or the support arm 101, the angle between the support arm 101 and the umbrella cap 2 can be adjusted, allowing for adjustment of the angle of the flexible umbrella surface 3 mounted on the umbrella cap 2 relative to the ground. Figure 18 This diagram illustrates the state when the angle between the support arm 101 and the umbrella cap 2 is adjusted so that the support rod 1 is tilted relative to the column 93. In order to adjust the tilt angle of the flexible umbrella surface 3, the hanger 102 and the support arm 101 can be aligned with or moved away from the swing trend, so as to better adjust the tilt angle of the flexible umbrella surface 3 relative to the ground according to the actual situation of the lighting angle.

[0092] In some embodiments, the photovoltaic sunshade 100 includes a connecting arm 103, one end of which is fixed to the mounting rod 212, and the other end of which extends in a direction perpendicular to the support rod 1 beyond the edge of the mounting plate 21. The tail end of the support arm 101 is rotatably connected to the end of the connecting arm 103 away from the mounting rod 212.

[0093] Please see Figures 17-20 In some embodiments, a second umbrella area 32 is aligned with the support arm 101. The second photovoltaic panel 5 located in the second umbrella area 32 aligned with the support arm 101 includes a first portion 53 and a second portion 54. A clearance gap e is provided between the first portion 53 and the second portion 54. When the support arm 101 is suspended from the column 93 by the hanger 102 and the flexible umbrella surface 3 is in the unfolded state, a first umbrella rib 6 and the support arm 101 abut against the opposite sides of the flexible umbrella surface 3 located at the clearance gap e. By providing the clearance gap e, the first umbrella rib 6 can be supported on the support arm 101 through the flexible umbrella surface 3 of the clearance gap e. The clearance gap e is used to avoid the support arm 101, which can prevent the support arm 101 and the first umbrella rib 6 from squeezing the second photovoltaic panel 5 and causing damage to the second photovoltaic panel 5.

[0094] In some embodiments, the first part 53 and the second part 54 are respectively provided with a positive electrode tab b1 and a negative electrode tab b2. The starting end of the positive electrode bus c1 is connected to the positive electrode tab b1 of the first part 53, and the ending end of the positive electrode bus c1 is connected to the positive electrode tab b1 of the second part 54. The starting end of the negative electrode bus c2 is connected to the negative electrode tab b2 of the first part 53, and the ending end of the negative electrode bus c2 is connected to the negative electrode tab b2 of the second part 54.

[0095] Please see Figure 14 , Figure 17 , Figure 21 and Figure 22In some embodiments, for the second structure umbrella, the photovoltaic sunshade 100 further includes a sliding assembly 30 that can slide along the upright 93. The upright 93 has a sliding groove 931 for the sliding assembly 30 to slide through, and an upper limit hole 932 and a lower limit hole 933, both of which are connected to the sliding groove 931. The upper limit hole 932 and the lower limit hole 933 are distributed vertically along the sliding direction of the sliding assembly 30. Understandably, the sliding assembly 30 is restricted to sliding between the upper limit hole 932 and the lower limit hole 933.

[0096] Furthermore, the sliding assembly 30 includes a slider 301, a positioning pin 303, a third elastic element 304, and a handle 302. The slider 301 is slidably disposed in the slide groove 931 and has a second mounting groove 3011. The positioning pin 303 is slidably disposed in the second mounting groove 3011. A limiting baffle 3031 protrudes from the outer wall of the positioning pin 303 to limit the positioning pin 303 within the second mounting groove 3011. The third elastic element 304 is sleeved on the positioning pin 303 and abuts against the limiting baffle 3031. The positioning pin 303 is used to extend through the opening of the second mounting groove 3011 to insert into the upper limiting hole 932 and the lower limiting hole 933 respectively, so as to position the sliding assembly 30 on the column 93. The third elastic element 304 is used to generate an elastic force to prevent the positioning pin 303 from retracting into the second mounting groove 3011. When it is necessary to release the positioning between the sliding assembly 30 and the column 93, the positioning pin 303 can be pressed, so that the positioning pin 303 overcomes the elastic force of the third elastic element 304 and retracts into the second mounting groove 3011, thereby disengaging from the upper limit hole 932 and the lower limit hole 933. At this time, the sliding assembly 30 can slide freely in the sliding groove 931.

[0097] When the positioning pin 303 is inserted into the upper limit hole 932, the limiting baffle 3031 abuts against the inner wall of the slide groove 931 surrounding the upper limit hole 932 to prevent the positioning pin 303 from dislodging from the second mounting groove 3011; and when the positioning pin 303 is inserted into the lower limit hole 933, it abuts against the inner wall of the slide groove 931 surrounding the lower limit hole 933 to prevent the positioning pin 303 from dislodging from the second mounting groove 3011. It is understood that in some other embodiments, a limiting protrusion can also be provided at the opening of the second mounting groove 3011 for the limiting baffle 3031 to abut against, thereby preventing the positioning pin 303 from dislodging from the second mounting groove 3011.

[0098] In some embodiments, the third elastic element 304 is a spring.

[0099] Please see Figure 14 and Figure 17 In some embodiments, for the second structure umbrella, the support arm 101 is provided with a fourth wire passage d4 and a clearance opening 1011. The fourth wire passage d4 extends along the tail end of the support arm 101 to the middle of the support arm 101, and the clearance opening 1011 is connected to the fourth wire passage d4.

[0100] Furthermore, the column 93 is provided with a fifth wire passage d5. One end of the boom 102 is rotatably connected to the column 93 within the fifth wire passage d5, and the other end of the boom 102 passes through the clearance opening 1011 and is rotatably connected to the middle of the support arm 101 within the fourth wire passage d4. The clearance opening 1011 provides rotation space for the boom 102 when it rotates relative to the support arm 101, preventing interference between the boom 102 and the support arm 101. Additionally, the boom 102 is provided with a sixth wire passage d6. The two ends of the sixth wire passage d6 are connected to the fourth wire passage d4 and the fifth wire passage d5, respectively. The positive busbar c1 and the negative busbar c2 pass through the fourth wire passage d4, the sixth wire passage d6, and the fifth wire passage d5 in sequence before extending to the base 92.

[0101] The sixth wire passage d6 located on the boom 102 is connected to the fourth wire passage d4 and the fifth wire passage d5 at both ends. The positive busbar c1 and the negative busbar c2 pass through the fourth wire passage d4, the sixth wire passage d6 and the fifth wire passage d5 in sequence. Since the boom 102 only changes angle relative to the support arm 101 and the column 93, the wires pass through the boom 102 and enter the fifth wire passage d5 in the column 93. Compared with the wires passing directly through the entire support arm 101 and then entering the fifth wire passage d5 in the column 93, this method helps to reduce the problem of wire entanglement or pulling caused by the sliding of the first end of the support arm 101 relative to the column 93.

[0102] In the second structure umbrella, the base 92 is provided with an electrical connector. The positive bus c1 and the negative bus c2 pass through the fourth wire passage d4, the sixth wire passage d6 and the fifth wire passage d5 in sequence and are then electrically connected to the electrical connector. The electrical connector is used to electrically connect to the inverter.

[0103] In the second structure umbrella, one end of the boom 102 is provided with a first wire passage hole (not shown in the figure), which connects the sixth wire passage d6 and the fifth wire passage d5. The other end of the boom 102 is provided with a second wire passage hole (not shown in the figure), which connects the sixth wire passage d6 and the fourth wire passage d4.

[0104] In the second structure umbrella, the slide 931 serves as the fifth wire passage d5. One end of the rod 102 passes through the slot of the slide 931 to be rotatably connected to the column 93 within the slide 931. The slider 301 is provided with a third wire passage hole 3012, which is used for the positive busbar c1 and the negative busbar c2 to pass through.

[0105] Based on the same inventive concept, this application also provides a photovoltaic power generation system, including the photovoltaic sunshade 100 in any of the above embodiments.

[0106] In some embodiments, the photovoltaic power generation system includes an inverter that is electrically connected to a first photovoltaic panel 4 and a second photovoltaic panel 5.

[0107] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A photovoltaic sun umbrella, characterized in that, include: Support rod and umbrella cap disposed at one end of the support rod; A flexible umbrella canopy, with the umbrella cap located in its central part, the flexible umbrella canopy having multiple first umbrella areas and multiple second umbrella areas, the first umbrella areas and the second umbrella areas being distributed alternately in a circumferential direction; Multiple first photovoltaic panels and multiple second photovoltaic panels, with two first photovoltaic panels arranged at intervals relative to each other in a first umbrella area, and each second photovoltaic panel matchedly arranged on a second umbrella area; Multiple first umbrella ribs and multiple second umbrella ribs, the multiple first umbrella ribs being circumferentially hinged to the edge of the umbrella cap and extending dispersedly over multiple second umbrella areas; A limiting ring is fitted onto the support rod; Multiple second umbrella ribs, each second umbrella rib having its two ends movably connected to the limiting ring and a first umbrella rib respectively. The limiting ring, which moves up and down along the support rod, is used to drive the multiple first umbrella ribs and multiple second umbrella ribs to move to close or open the flexible umbrella surface. During the process of closing the flexible umbrella surface, the movement of the first umbrella rib and the second umbrella rib is used to drive multiple second photovoltaic panels to move toward the support rod to form a closing tube around the support rod, and is also used to drive two first photovoltaic panels on the first umbrella area to be folded in half along the interval and stored in the closing tube. During the unfolding of the flexible umbrella canopy, multiple first umbrella ribs distributed across multiple second umbrella areas are used to support the flexible umbrella canopy.

2. The photovoltaic sunshade umbrella according to claim 1, characterized in that, The first umbrella area is a triangular area and the second umbrella area is a rectangular area; each of the first photovoltaic panels is a right-angled triangle and the right-angled sides of the two first photovoltaic panels are arranged in a first umbrella area with the right angles parallel to each other, and each of the second photovoltaic panels is a rectangle; When the flexible umbrella surface is in the closed state, multiple first umbrella ribs are arranged in parallel opposite directions and the closing tube is prismatic. The two first photovoltaic panels on each first umbrella area are folded together and closed into the closing tube along the folding gap between the two opposite right angle sides.

3. The photovoltaic sunshade umbrella according to claim 1, characterized in that, The photovoltaic sunshade also includes a limiting and locking mechanism for limiting the unfolded state of the flexible canopy. The limiting locking mechanism includes a limiting hole opened on the limiting ring, a limiting pin movably passing through the limiting hole, a first limiting crossbar fixedly connected to the limiting pin and limited within the limiting hole, a first elastic member sleeved on the limiting pin and abutting against the first limiting crossbar, and a first limiting groove opened on the support rod. When the flexible umbrella surface is in the unfolded state, the limiting hole is connected to the first limiting groove, the limiting pin is inserted into the first limiting groove to limit the limiting ring in the first limiting groove, and the first elastic element is used to generate an elastic force to prevent the limiting pin from disengaging from the first limiting groove.

4. The photovoltaic sunshade umbrella according to claim 1, characterized in that, The photovoltaic sunshade also includes a limiting and locking mechanism for limiting the unfolded state of the flexible canopy. The limiting and locking mechanism includes a first mounting groove formed in the support rod, a limiting button slidably disposed in the first mounting groove, a second limiting crossbar fixedly connected to the limiting button and limited within the first mounting groove, a second elastic element sleeved on the limiting button and abutting against the second limiting crossbar, and a limiting block disposed on the end of the support rod. The limiting block and the umbrella cap are respectively disposed on two opposite ends of the support rod. The first mounting groove is disposed between the umbrella cap and the limiting block. The limiting block is used to limit the movement stroke of the limiting ring. When the flexible umbrella canopy is in the unfolded state, the head of the limit button extends out of the first mounting groove, the limit ring abuts against the limit button along the umbrella cap toward the limit block, and the second elastic element is used to generate an elastic force to prevent the limit button from retracting into the first mounting groove.

5. The photovoltaic sun umbrella according to any one of claims 1 to 3, characterized in that, The photovoltaic sunshade includes a pole and a base mounted on the pole, with the base and the support rod located at opposite ends of the pole.

6. The photovoltaic sunshade umbrella according to claim 5, characterized in that, Each of the first photovoltaic panels and each of the second photovoltaic panels includes a support plate disposed on the flexible umbrella surface and photovoltaic thin-film solar cells disposed on the support plate; the photovoltaic thin-film solar cells are provided with positive electrode tabs and negative electrode tabs, the positive electrode tabs of multiple photovoltaic thin-film solar cells are electrically connected through a positive electrode bus, and the negative electrode tabs of multiple photovoltaic thin-film solar cells are electrically connected through a negative electrode bus. The umbrella cap, the support rod, and the upright are respectively provided with a first wire passage, a second wire passage, and a third wire passage, and the base is provided with an electrical connector; The positive bus and the negative bus pass through the first wire passage, the second wire passage and the third wire passage in sequence and are then electrically connected to the electrical connector, which is used to electrically connect to the inverter.

7. The photovoltaic sunshade umbrella according to any one of claims 1, 2, or 4, characterized in that, The photovoltaic sunshade includes a base assembly, which includes a column and a base disposed on one end of the column. The photovoltaic sunshade also includes an angle adjustment mechanism connecting the base assembly and the umbrella cap. The angle adjustment mechanism is used to adjust the tilt angle of the flexible umbrella surface in the unfolded state and to adjust the relative distance between the collapsible tube and the upright in the folded state. The angle adjustment mechanism includes a support arm and a rod. One end of the rod is rotatably connected to the other end of the column. The first end of the support arm is movably mounted on the column. The middle part of the support arm is rotatably connected to the other end of the rod. The tail end of the support arm is rotatably connected to the umbrella cap.

8. The photovoltaic sunshade umbrella according to claim 7, characterized in that, The second umbrella area is aligned with the support arm. The second photovoltaic panel in the second umbrella area aligned with the support arm includes a first part and a second part. A clearance gap is provided between the first part and the second part. When the support arm is suspended on the column by the hanging rod and the flexible umbrella surface is in the unfolded state, the first umbrella rib and the support arm abut against the opposite sides of the flexible umbrella surface located at the clearance gap.

9. The photovoltaic sunshade umbrella according to claim 7, characterized in that, The photovoltaic sunshade also includes a sliding component that can slide along the column. The column has a sliding groove for the sliding component to slide along, as well as an upper limit hole and a lower limit hole that are both connected to the sliding groove. The upper limit hole and the lower limit hole are distributed up and down along the sliding direction of the sliding component. The sliding assembly includes a slider, a positioning pin, a third elastic element, and a handle. The slider is slidably disposed in the slide groove and has a second mounting groove. The positioning pin is slidably disposed in the second mounting groove. The outer wall of the positioning pin has a protruding limiting baffle for confining the positioning pin within the second mounting groove. The third elastic element is sleeved on the positioning pin and abuts against the limiting baffle. The positioning pin extends through the opening of the second mounting groove to be inserted into the upper limiting hole and the lower limiting hole respectively, so as to position the sliding assembly at different positions on the column. The third elastic element generates an elastic force to prevent the positioning pin from retracting into the second mounting groove. The slider is connected to the handle, and the head end of the support arm is rotatably connected to the handle.

10. The photovoltaic sunshade umbrella according to claim 7, characterized in that, Each of the first photovoltaic panels and each of the second photovoltaic panels includes a support plate disposed on the flexible umbrella surface and photovoltaic thin-film solar cells disposed on the support plate; the photovoltaic thin-film solar cells are provided with positive electrode tabs and negative electrode tabs, the positive electrode tabs of multiple photovoltaic thin-film solar cells are electrically connected through a positive electrode bus, and the negative electrode tabs of multiple photovoltaic thin-film solar cells are electrically connected through a negative electrode bus. The support arm is provided with a fourth wire passage and a clearance opening. The fourth wire passage extends from the tail end of the support arm to the middle of the support arm, and the clearance opening communicates with the fourth wire passage. The column is provided with a fifth wire passage. One end of the boom is rotatably connected to the column within the fifth wire passage, and the other end of the boom passes through the clearance opening and is rotatably connected to the middle of the support arm within the fourth wire passage. The boom is provided with a sixth wire passage, and the two ends of the sixth wire passage are respectively connected to the fourth wire passage and the fifth wire passage. The base is equipped with an electrical connector. The positive bus and the negative bus pass through the fourth wire passage, the sixth wire passage and the fifth wire passage in sequence and are connected to the electrical connector. The electrical connector is used to connect to the inverter.

11. A photovoltaic power generation system, characterized in that, Including the photovoltaic sunshade umbrella as described in any one of claims 1-10.

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