Folding photovoltaic system

Abstract

The invention discloses a folding type photovoltaic system. The folding type photovoltaic system comprises a stand column; the basic photovoltaic unit is fixed at the top of the stand column; the overturning assembly is vertically and rotatably arranged on the stand column; the turnover assembly drives the turnover photovoltaic unit to rotate in the vertical direction; the reversible photovoltaic unit comprises a telescopic unit and a photovoltaic unit, and the photovoltaic unit is installed on the telescopic unit, so that the photovoltaic unit is telescopically connected to the reversible photovoltaic unit. According to the folding type photovoltaic system, more photovoltaic panels can be deployed in a limited space, and the space utilization rate and the power generation efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of solar power generation, in particular to a foldable photovoltaic system. Background Art

[0002] Traditional photovoltaic tracking brackets are mostly built in the form of power stations in sparsely populated areas, or photovoltaic roofs are built on the roofs of houses, and the use scenarios are limited. With the continuous maturity of photovoltaic bracket technology, foldable photovoltaic brackets have begun to appear on the market. Such brackets can be folded and stored when not in use, reducing the occupied area of ​​the site, so that photovoltaic brackets have more use scenarios. At present, there are few types of such products, and the number of photovoltaic modules that can be folded by existing products is limited. The more common solution is to fold 2, 3 or 4 photovoltaic modules, and it is impossible to fold more photovoltaic modules. The space that can be reduced after the photovoltaic modules are folded is limited, and there is a large room for optimization.

[0003] Therefore, it is necessary to provide a new foldable photovoltaic system to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a foldable photovoltaic system, which can deploy more photovoltaic panels in a limited space and improve space utilization and power generation efficiency.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A foldable photovoltaic system, characterized by comprising:

[0007] Column;

[0008] A basic photovoltaic unit is fixed to the top of the column;

[0009] A flip assembly is vertically rotatably arranged on the column, four groups of flip assemblies are evenly arranged along the circumference of the column, each group of flip assemblies includes a bracket and a first driving device, one end of the bracket is vertically rotatably connected to the upper end of the column, the first driving device is connected to the column, and the movable end of the first driving device is connected to the bracket;

[0010] A flippable photovoltaic unit is fixed on the bracket, and the flip assembly drives the flippable photovoltaic unit to rotate in a vertical direction;

[0011] Among them, the flippable photovoltaic unit includes a first flippable photovoltaic unit and a second flippable photovoltaic unit, the first flippable photovoltaic unit and / or the second flippable photovoltaic unit include a telescopic unit and a photovoltaic unit, and the photovoltaic unit is installed on the telescopic unit so that the photovoltaic unit can be telescopically connected to the first flippable photovoltaic unit and / or the second flippable photovoltaic unit.

[0012] As a further improved technical solution of the present invention, the telescopic unit includes a base frame and a telescopic assembly, the base frame is fixed to the bracket, the telescopic assembly includes a sliding frame, a transmission group and a sliding group, the sliding frame can be arranged in parallel in the base frame through the sliding group, and the transmission group drives the sliding group to drive the sliding frame to move.

[0013] As a further improved technical solution of the present invention, the transmission group includes a transmission shaft, a conveyor belt and a second driving device. The two transmission shafts are arranged in parallel and connected to the base frame. The conveyor belt is sleeved on the outside of the two transmission shafts. The second driving device drives the transmission shaft to drive the conveyor belt to rotate, and the sliding frame is fixedly connected to the conveyor belt.

[0014] As a further improved technical solution of the present invention, one group of the transmission groups corresponds to two of the sliding frames, and the two sliding frames are respectively installed on the base frame through the two groups of the sliding groups and are respectively fixedly connected to the upper and lower sides of the conveyor belt, and the transmission group drives the two sliding frames to be retracted into the base frame from both sides or extend out from both sides of the base frame.

[0015] As a further improved technical solution of the present invention, the two groups of the first flippable photovoltaic units arranged opposite to each other include the photovoltaic units, and the photovoltaic units are fixed on the bracket;

[0016] The two groups of the second flippable photovoltaic units arranged opposite to each other include the telescopic unit and the photovoltaic unit. The telescopic assembly on each telescopic unit includes two sliding frames. The photovoltaic unit is arranged on the base frame and the two sliding frames.

[0017] As a further improved technical solution of the present invention, the first flippable photovoltaic unit and the second flippable photovoltaic unit both include the telescopic unit and the photovoltaic unit, the transmission group of each telescopic component drives one of the sliding frames, the photovoltaic units are both arranged on the sliding frame and the base frame, and the transmission group drives one of the sliding frames to be retracted into the base frame or extended out of the base frame.

[0018] As a further improved technical solution of the present invention, the first flippable photovoltaic unit and the second flippable photovoltaic unit both include the telescopic unit and the photovoltaic unit, each telescopic component includes two sliding frames, and each of the two sliding frames is provided with a photovoltaic unit.

[0019] As a further improved technical solution of the present invention, the first driving device is a piston driving device, including a cylinder body and a piston rod, the cylinder body is vertically rotatably connected to the column, and the piston rod is vertically rotatably connected to the bracket.

[0020] As a further improved technical solution of the present invention, the column includes an upper support, a lower support and a third driving device, the upper support includes a column body and a support arm, the column body is connected to the upper end of the lower support through the third driving device, the support arm is fixed to the upper end of the column body in the horizontal direction, the basic photovoltaic unit is fixed on the support arm, one end of the bracket is vertically rotatably connected to the support arm, and one end of the third driving device is vertically rotatably connected to the column.

[0021] As a further improved technical solution of the present invention, the third driving device is a rotary driving machine, including a fixed end, an output end and an input end, the fixed end is fixedly connected to the lower support, the output end is fixedly connected to the upper support, and the input end drives the output end to drive the upper support to rotate horizontally.

[0022] Compared with the prior art, the beneficial effects of the foldable photovoltaic system of the present invention are: a flip assembly is provided to drive the flippable photovoltaic unit to rotate in the vertical direction, so as to flip to a horizontal state for power generation, or flip to a vertical state to reduce the occupied area; a telescopic unit is provided in the flippable photovoltaic unit, so as to drive the photovoltaic unit to move in the horizontal direction, so as to lay out a plurality of photovoltaic panels for power generation, or to fold a plurality of photovoltaic panels to a stacked state to reduce the occupied area. The foldable photovoltaic system realizes the deployment of more photovoltaic panels in a limited space, improves the space utilization and power generation efficiency, has good structural stability and occupies a small space, can be quickly unfolded and folded, is convenient to carry and store, and has high flexibility and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the fully unfolded structure of a foldable photovoltaic system according to a specific embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure at another angle;

[0025] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the A area in the middle;

[0026] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0027] Figure 5 for Figure 1 Schematic diagram of the main structure;

[0028] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of the middle C area;

[0029] Figure 7 It is a schematic diagram of the installation of the basic photovoltaic unit and the upper support according to a specific embodiment of the present invention;

[0030] Figure 8 It is a partial structural schematic diagram of a telescopic unit according to a specific embodiment of the present invention;

[0031] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure of the D region in the middle;

[0032] Fig.10 It is a partial structural schematic diagram of a telescopic assembly according to a specific embodiment of the present invention;

[0033] Fig.11 It is a schematic diagram of the installation of the flip assembly and the upper support according to a specific embodiment of the present invention;

[0034] Fig.12 for Fig.11 Schematic diagram of the enlarged structure of the middle E region;

[0035] Fig.13 for Fig.11 Schematic diagram of the enlarged structure of the middle F region;

[0036] Fig.14 for Fig.11 Schematic diagram of the enlarged structure of the middle G region;

[0037] Fig.15 It is a schematic diagram of the installation of a column according to a specific embodiment of the present invention;

[0038] Fig.16 A schematic diagram of a partially unfolded structure of a foldable photovoltaic system according to a specific embodiment of the present invention;

[0039] Fig.17 It is a schematic diagram of the fully folded structure of a foldable photovoltaic system according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0040] The exemplary embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. If there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; on the contrary, they are only examples of devices, products and / or methods consistent with some aspects of the present invention as recorded in the claims of the present invention.

[0041] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the scope of protection of the present invention. The singular forms "a", "said" or "the" used in the specification and claims of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.

[0042] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the existence of at least one. Unless otherwise specified, words such as "front", "rear", "upper", "lower" and similar words appearing in the present invention are only for the convenience of explanation and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprise" are an open-ended expression, meaning that the elements appearing before "include" or "comprise" include the elements appearing after "include" or "comprise" and their equivalents, which does not exclude that the elements appearing before "include" or "comprise" may also include other elements. If "several" appears in the present invention, it means two or more.

[0043] See also Figures 1 to 17 As shown, this embodiment discloses a foldable photovoltaic system, including a column 1, a basic photovoltaic unit 2, a flip assembly 3 and a flippable photovoltaic unit 4, wherein the column 1 is used to provide support for the entire photovoltaic system, the basic photovoltaic unit 2 is horizontally fixed on the top of the column 1, and the flip assembly 3 drives the flippable photovoltaic unit 4 to be vertically rotatable and arranged around the column 1.

[0044] See also Figure 2 and Fig.15As shown, the column 1 includes an upper support 11, a lower support 12 and a third driving device 13. The third driving device 13 sets the upper support 11 on the lower support 12 so that it can rotate horizontally to adjust the direction of the photovoltaic panel and realize the tracking function. In this embodiment, the third driving device 13 is a rotary driving machine, including a fixed end 131, an output end 132 and an input end 133. The lower support 12 is fixed to the ground or other platforms, the fixed end 131 is fixedly connected to the lower support 12, the output end 132 is fixedly connected to the upper support 11, and the input end 133 drives the output end 132 to drive the upper support 11 to rotate horizontally, thereby driving the photovoltaic panel above to rotate and change the direction.

[0045] See also Figure 2 , Figure 5 and Fig.11 As shown, four groups of flip assemblies 3 are evenly arranged along the circumference of the column 1, and each group of flip assemblies 3 includes a bracket 31 and a first drive device 32. One end of the bracket 31 can be vertically rotatably connected to the upper end of the upper support 11, and the first drive device 32 can be vertically rotatably connected to the upper support 11. The height position of the end of the first drive device 32 connected to the upper support 11 is lower than the end of the bracket 31 connected to the upper support 11, and the movable end of the first drive device 32 is vertically rotatably connected to the part of the bracket 31 away from the end connected to the upper support 11. The bracket 31, the first drive device 32 and the upper support 11 form a triangle with strong structural stability. The flip photovoltaic unit 4 is fixed on the bracket 31, and the flip assembly 3 can rotate the flip photovoltaic units 4 on all sides in the vertical direction to a vertical state for storage, or flip and unfold the flip photovoltaic units 4 on all sides to a horizontal state for power generation.

[0046] The reversible photovoltaic unit 4 includes a first reversible photovoltaic unit 401 and a second reversible photovoltaic unit 402, wherein the first reversible photovoltaic unit 401 is provided with two groups and arranged oppositely, and the second reversible photovoltaic unit 402 is also provided with two groups and arranged oppositely, and each group of the first reversible photovoltaic unit 401 and the second reversible photovoltaic unit 402 is provided with a photovoltaic unit 6. Further, the first reversible photovoltaic unit 401 and / or the second reversible photovoltaic unit 402 includes a telescopic unit 5 and a photovoltaic unit 6 installed on the telescopic unit 5, and the photovoltaic unit 6 is telescopically connected to the first reversible photovoltaic unit 401 and / or the second reversible photovoltaic unit 402 through the telescopic unit 5.

[0047] See also Figures 2 to 4 As shown, the telescopic unit 5 includes a base frame 41 and a telescopic assembly 50 arranged on the base frame 41, and the bracket 31 includes a main body 311 and an extension portion 312, and the extension portion 312 extends upward from both sides of the main body 311, and the length of the main body 311 is greater than the length of the extension portion 312.

[0048] See also Figure 5and Fig.11 As shown, the first driving device 32 is a piston driving device, including a cylinder 321 and a piston rod 322, the piston rod 322 is telescopically connected to the cylinder 321, one end of the cylinder 321 away from the piston rod 322 is vertically rotatably connected to the upper support 11, one end of the piston rod 322 away from the cylinder 321 is vertically rotatably connected to the bracket 21, and the piston rod 322 is at least partially located in the cylinder 321. By setting the first driving device 32 to be telescopic, it is possible to better cooperate with the flipping of the flippable photovoltaic unit 4 and adjust the tilt angle of the flippable photovoltaic unit 4.

[0049] See also Figure 2 , Figure 7 and Fig.11 As shown, the upper support 11 includes a column 111 and a support arm 112. The column 111 is connected to the upper end of the lower support 12 through a third driving device 13. The support arm 112 is evenly fixed to the upper end of the column 111 in the horizontal direction. The basic photovoltaic unit 2 is fixed on the support arm 112. One end of the bracket 31 is vertically rotatably connected to the support arm 112, and one end of the first driving device 32 is vertically rotatably connected to the column 111. Further, the support arm 112 is cross-shaped, and its center is fixedly connected to the column 111, and the center of the support arm 112 and the center of the basic photovoltaic unit 2 are both located on the length extension line of the column 111, which has good stability. The brackets 31 of the four groups of flip assemblies 3 are respectively connected to the four ends of the cross-shaped support arm 112 in a vertically rotatable manner. The column 111 is a square column, and the second driving devices 32 of the four groups of flip assemblies 3 are respectively connected to the four sides of the column 111 in a vertically rotatable manner.

[0050] In some embodiments, the column 111 and the support arm 112 are separately provided, and the four support arms 112 are respectively fixed to the uppermost ends of the four sides of the column 111, and can be fixedly connected by bonding, welding or other methods. In other embodiments, the column 111 and the support arm 112 are integrally provided, and can be regarded as five faces of a cube extending outward respectively, wherein the four extended portions located in the same plane form the support arm 112, and the other extended portion forms the column 111.

[0051] In this embodiment, the basic photovoltaic unit 2 and the photovoltaic unit 6 each include a photovoltaic panel.

[0052] In the basic photovoltaic unit 2, the photovoltaic panel can be a frameless component or a framed component. To improve the connection stability, when the photovoltaic panel is a frameless component, a frame 201 is fixedly arranged on the outer edge or lower surface of the photovoltaic panel, and when the frame 201 is arranged on the outer edge of the photovoltaic panel, the thickness of the frame 201 is greater than the thickness of the photovoltaic panel, the lower end of the frame 201 is lower than the lower surface of the photovoltaic panel, the lower surface of the photovoltaic panel at least partially fits the support arm 112, and the four ends of the support arm 112 abut against the inner side of the frame 201 in the horizontal direction. When the photovoltaic panel is a framed component, the lower surface of the photovoltaic panel also at least partially fits the support arm 112, and the four ends of the support arm 112 abut against the inner side of the frame of the photovoltaic panel in the horizontal direction. Such an arrangement makes the connection stability of the basic photovoltaic unit 2 higher. In this embodiment, the photovoltaic panel in the basic photovoltaic unit 2 is a frameless component, and the frame 201 is arranged along the outer edge of the lower surface of the photovoltaic panel.

[0053] See also Figures 11 to 14 As shown, the support arm 112 is provided with a first adapter portion 1121 for vertically rotatably connecting with the bracket 31, and the first adapter portion 1121 is arranged at one end of the support arm 112 away from the column 111. The column 111 is provided with a second adapter portion 1111 for vertically rotatably connecting with the first driving device 32, and the second adapter portion 1111 is relatively arranged at the upper part of the column 111 and there is a certain distance between the support arm 112. The end of the bracket 31 connected to the upper pillar 11 is provided with a third adapter portion 311, and the end of the first driving device 32 connected to the upper pillar 11 is provided with a fourth adapter portion 323. The bracket 31 and the upper pillar 11 are vertically rotatably connected through the third adapter portion 311 and the first adapter portion 1121, and the first driving device 32 and the upper pillar 11 are vertically rotatably connected through the fourth adapter portion 323 and the second adapter portion 1111. Specifically, in this embodiment, the first adapter part 1121, the second adapter part 1111, and the third adapter part 311 are all composed of two flat plates with holes, and the fourth adapter part 323 is a flange with a hole, and its rotatable connection relationship can be achieved by setting a pin or other rotating connecting parts. Such a setting can ensure that the support stability of the column 1 to the entire system can be ensured, and the flip assembly 3 can have a larger rotation angle range and greater flexibility. The bracket 31 and the first drive device 32 are connected through the adapter 33, and the adapter 33 is fixed to the lower surface of the bracket 31, including a support part 331 and a mounting part 332. The support part 331 is fixed to the lower surface of the bracket 31, and the mounting part 332 is perpendicular to the support part 331. The mounting part 332 is hinged to the piston rod 322 of the first drive device 32.

[0054] In this embodiment, each group of flipping components 3 drives a flippable photovoltaic unit 4 to rotate in the vertical direction, and the four groups of flipping components 3 drive two groups of first flippable photovoltaic units 401 and two groups of second flippable photovoltaic units 402 to rotate. Each of the first flippable photovoltaic unit 401 and the second flippable photovoltaic unit 402 is provided with a relatively fixed photovoltaic panel, which can be a frameless component or a framed component.

[0055] In one embodiment of the present invention, see Figures 2 to 4 As shown, two groups of first reversible photovoltaic units 401 include photovoltaic units 6, which are fixed on the bracket 31; two groups of second reversible photovoltaic units 402 include photovoltaic units 6 fixed on the bracket 31, telescopic units 5, and photovoltaic units 6 telescopically connected through the telescopic units 5. In the two groups of second reversible units 402, the photovoltaic panels fixed on the bracket 31 are frameless components or framed components, and the photovoltaic panels are fixed on the base frame 41, the base frame 41 abuts against the upper surface of the main body 311 downward, and the two ends of the extension 312 abut against the inner sides of the base frame 41; in the two groups of first reversible units 401, the photovoltaic panels fixed on the bracket 31 are framed components, and their frame abuts against the upper surface of the main body 311 downward, and the two ends of the extension 312 abut against the inner sides of its frame.

[0056] See also Figure 5 and Figure 6 As shown, the telescopic assembly 50 is arranged in the base frame 41, and the telescopic assembly 50 includes a sliding frame 51, a transmission group 52 and a sliding group 53. The sliding frame 51 can be arranged on both sides of the base frame 41 in parallel and movably through the sliding group 53. The sliding groups 53 on both sides are arranged oppositely and respectively connected to the two sides of the sliding frame 51. The transmission group 52 is installed on the base frame 41 to drive the sliding group 53 to drive the sliding frame 51 to move. The photovoltaic unit 6 is fixedly arranged in the sliding frame 51, and the telescopic assembly 5 can drive the photovoltaic unit 6 to translate along the sliding group 53 to be retracted into the base frame 41 or extend from the base frame 41.

[0057] In this embodiment, each set of telescopic components 50 drives two photovoltaic units 6 to move in parallel. The photovoltaic panels of the photovoltaic units 6 can be frameless components or framed components. The photovoltaic panels are fixed in the sliding frame 51, and the sliding frame 51 surrounds the photovoltaic panels.

[0058] See also Figure 6 , Figure 8 and Fig.10As shown, the base frame 41 includes two main frames 411 arranged opposite to each other and a connecting rod 412 connecting the two main frames 411, the main frame 411 includes a side plate 4111 and an upper plate 4112 and a lower plate 4113 respectively fixed to the upper and lower ends of the side plate 4111, the side plates 4111 of the two main frames 411 are arranged parallel to each other, the upper plates 4112 and the lower plates 4113 of the two main frames 411 extend close to each other, the second photovoltaic panel 40 is fixed to the upper plates 4112 on both sides, the transmission group 52 and the sliding group 53 are installed on the side plates 4111, and the lower plate 4113 is fixed to the bracket 31. The connecting rod 412 is vertically fixed to connect the side plates 4111 on both sides.

[0059] See also Figure 6 and Figure 8 As shown, the transmission group 52 includes a transmission shaft 521, a conveyor belt 522 and a third driving device 523. The two transmission shafts 521 are arranged in parallel and connected to the base frame 41. The conveyor belt 522 is sleeved on the outside of the two transmission shafts 521. The second driving device 523 drives the transmission shaft 521 to drive the conveyor belt 522 to rotate, and the sliding frame 51 is fixedly connected to the conveyor belt 522. Specifically, in this embodiment, each transmission group 52 includes two transmission shafts 521, two conveyor belts 522 and a second driving device 523. The two conveyor belts 522 are arranged in parallel. The second driving device 523 drives one of the transmission shafts 521 to rotate, and in turn drives the conveyor belt 522 and the other transmission shaft 521 to rotate, and the sliding frame 51 moves parallel to the conveyor belt 522. Further, the two sliding frames 51 are respectively fixed to the upper and lower sides of the conveyor belt 522, and the two sliding frames 51 are driven by a group of transmission groups 52, which has low energy consumption and can achieve the synchronization of the two sliding frames 51 driving the two photovoltaic units 6 to extend and retract.

[0060] See also Figure 6 , Figure 8 and Fig.10 As shown, the sliding group 53 includes an outer rail 531, a middle rail 532 and an inner rail 533. The two outer rails 531 are fixed to the inner sides of the side plates 4111 on both sides of the base frame 41, the two middle rails 532 are respectively movably arranged on the two outer rails 531, and the two inner rails 533 are respectively movably arranged on the two middle rails 532. The inner rail 533 is located on the side of the middle rail 532 away from the outer rail 531, and the sliding frame 51 is fixed to the inner rails 533 on both sides; the two sliding frames 51 are respectively installed on the base frame 41 through two groups of sliding groups 53 and are parallel to each other, so the movement of the two sliding frames 51 does not affect each other.

[0061] See also Figure 6As shown, the sliding group 53 also includes a slider 534 and a ball 535. The slider 534 is slidably connected to the outer rail 531, the middle rail 532 is fixedly connected to the slider 534, and the middle rail 532 is translationally connected to the outer rail 531 through the slider 534. The ball 535 is located between the middle rail 532 and the inner rail 533, the middle rail 532 is provided with a first arc surface 5321, the inner rail 533 is provided with a corresponding second arc surface 5331, the ball 535 at least partially abuts the first arc surface 5321 and at least partially abuts the second arc surface 5331, and the inner rail 533 is translationally connected to the middle rail 532 through the ball 535. The outer rail 531 is provided with a stopper (not shown in the figure), and the projection of the stopper at least partially overlaps with the slider 534 on the moving axis to limit the translation distance range of the slider 534 on the outer rail 531, so as to prevent the slider 534 and the middle rail 532 from falling off the outer rail 531. The middle rail 532 includes an outer connecting portion 5322 and an inner connecting portion 5323, wherein the outer connecting portion 5322 is connected to the outer rail 531, and the inner connecting portion 5323 is connected to the inner rail 533, the outer connecting portion 5322 is provided with a first groove portion 5324, the slider 534 is fixed to the first groove portion 5324, the inner connecting portion 5323 is provided with a second groove portion 5325, and two opposite groove surfaces of the second groove portion 5325 are provided with two concave first arc surfaces 5321, the inner rail 533 includes a fixed connecting portion 5332 and a raised portion 5333, the fixed connecting portion 5332 is fixedly connected to the sliding frame 51, and the raised portion 5333 is at least partially located in the second groove portion 5325 , the two surfaces of the raised portion 5333 opposite to the first curved surface 5321 are provided with a recessed second curved surface 5331, and there is a gap between the first curved surface 5321 and the second curved surface 5331; further, the first curved surface 5321 is provided with both axial ends of the inner connecting portion 5323, and the second curved surface 5331 is provided with a stopper (not shown in the figure), and the projection of the stopper on the moving axis at least partially overlaps with the ball 535 to prevent the ball 535 from falling off, and limits the relative translation distance range between the inner rail 533 and the middle rail 532 to prevent the inner rail 533 from falling off from the middle rail 532.

[0062] See also Figures 8 to 10As shown, the telescopic assembly 50 also includes a connecting member 54, one end of which is fixed to the conveyor belt 522 and located between the two transmission shafts 521, and the other end is fixedly connected to the sliding frame 51, so that the connecting member 54 can drive the sliding frame 51 to translate with the conveyor belt 522. Further, the connecting member 54 includes two horizontal plates 541 and a vertical plate 542, the vertical plate 542 is fixed to one of the horizontal plates 541, the two horizontal plates 541 are sandwiched between the conveyor belt 522 and fixed, and the vertical plate 542 is fixedly connected to the sliding frame 51. Specifically, in this embodiment, the two horizontal plates 541 are separately arranged and each is provided with a plurality of fixing holes 5411, the two horizontal plates 541 are sandwiched between a small section of the belt surface of the conveyor belt 522, and the fixing holes 5411 of the two horizontal plates 541 are penetrated by fasteners to fix the connecting member 54 to the conveyor belt 522, and the vertical plate 542 is fixedly connected to one of the horizontal plates 541 and is connected with rounded corners to prevent damage to other components during installation.

[0063] In this embodiment, a transmission group 52 is used to drive two sliding frames 51 from both sides to be retracted into the base frame 41 or to extend out from both sides of the base frame 41. The two sliding frames 51 are respectively installed on the base frame 41 through two sliding groups 53 and are respectively connected to the conveyor belt 522 through two connecting members 54. The two connecting members 54 are respectively fixed to the upper and lower sides of the conveyor belt 522; further, the two connecting members 54 are respectively located on the left and right sides of the conveyor belt 522. Fig.10 As can be seen, one set of connecting members 54 is located on the left side of the upper side of the conveyor belt 522, and the other set of connecting members 54 is located on the right side of the lower side of the conveyor belt 522. When the conveyor belt 522 is driven, the upper connecting members 54 translate from left to right, and the lower connecting members 54 translate from right to left. With such a configuration, when the transmission group 52 drives the two sliding frames 51 to move, because the transmission directions of the upper and lower sides of the conveyor belt 522 are opposite, the two sliding frames 51 translate from the inside of the base frame 41 to the left and right sides of the photovoltaic panel fixed on the base frame 41, or translate from the two sides to the inside of the base frame 41.

[0064] See also Figure 1 , Figure 2 , Fig.16 and Fig.17 As shown, the foldable photovoltaic system of this embodiment includes a basic photovoltaic unit 2, four flip assemblies 3 and four flippable photovoltaic units 4, each flip assembly 3 drives a flippable photovoltaic unit 4 to rotate in the vertical direction, two groups of first flippable photovoltaic units 401 are only provided with photovoltaic units 6, two groups of second flippable photovoltaic units 402 are provided with telescopic units 5 and photovoltaic units 6, and each telescopic assembly 50 also drives two photovoltaic units 6 to move in parallel, that is, a total of nine photovoltaic panels are included.

[0065] When power generation is needed, the photovoltaic panels can be quickly unfolded, the flip assembly 3 flips the vertically placed photovoltaic panels to the horizontal, the bracket 31 rotates vertically around the end of the support arm 112, the first drive device 32 rotates vertically around the upper part of the column 111, and the bracket 31 and the first drive device 32 rotate relative to each other. After the four flippable photovoltaic units 4 on the four sides are flipped to the required angles, the three rotatably connected parts are fixed; then the telescopic assembly 50 extends the two photovoltaic panels stored in the base frame 41 to the two sides of the photovoltaic panels fixed on the base frame 41, and a group of transmission groups 52 drives the two sliding frames 51 to respectively drive the two photovoltaic panels to move horizontally along the two sliding groups 53. After unfolding into place, the transmission group 52 stops driving, and the deployment of a total of nine photovoltaic panels on the four sides and in the middle is completed.

[0066] When not in use, the photovoltaic panels can be quickly folded up; the transmission group 52 drives the sliding frame 51 to drive the photovoltaic panels to be stored in the base frame 41; then the flip assembly 3 flips the photovoltaic panels horizontally unfolded around to a vertical state, the bracket 31 rotates vertically around the end of the support arm 112, the first drive device 32 rotates vertically around the upper part of the column 111, and the bracket 31 and the first drive device 32 rotate with each other. After flipping the photovoltaic panels around to a vertical state, the three rotatably connected parts are fixed, and the photovoltaic panels around and the basic photovoltaic unit 2 in the middle surround the other parts. The overall shape is roughly formed into a cube, that is, the nine photovoltaic panels are stored and folded, which significantly reduces the occupied space and makes the deployment of photovoltaic panels more flexible. Whether in a fixed place or a mobile occasion, the photovoltaic bracket can quickly adjust the number and layout of photovoltaic panels according to actual needs.

[0067] In other embodiments, the nine photovoltaic panels may be arranged in different layouts.

[0068] In the second embodiment of the present invention, the first flippable photovoltaic unit 401 and the second flippable photovoltaic unit 402 are both provided with a telescopic unit 5, a transmission group 52 drives a sliding frame 51 to be retracted into the base frame 41 or extended out of the base frame 41, and each telescopic component 50 drives a photovoltaic unit 6 to move in parallel.

[0069] In the third embodiment of the present invention, the first flippable photovoltaic unit 401 and the second flippable photovoltaic unit 402 are both provided with a telescopic unit 5, a transmission group 52 drives the two sliding frames 51 to be retracted into the base frame 41 or extended out of the base frame 41, and each telescopic component 50 drives the two photovoltaic units 6 to move in parallel.

[0070] At the same time, the photovoltaic system of this embodiment is also provided with a control module for controlling the operation of the entire photovoltaic system. Furthermore, the control module can also be connected to the control background communication, and can remotely adjust the flip assembly and the telescopic assembly to reduce manual intervention and reduce the risk of equipment damage caused by improper human operation. It can also realize remote monitoring and maintenance of photovoltaic panels through an intelligent control system, further reducing maintenance costs.

[0071] In summary, compared with the prior art, the foldable photovoltaic system of the present invention has the following advantages: a flip assembly 3 is provided to drive the flippable photovoltaic unit 4 to rotate in the vertical direction, so as to flip to a horizontal state for power generation, or flip to a vertical state to reduce the occupied area; a telescopic assembly 5 is provided in the flippable photovoltaic unit 4, so as to drive the photovoltaic unit 6 to move in the horizontal direction, so as to lay out a plurality of photovoltaic panels for power generation, or to collect a plurality of photovoltaic panels to a stacked state to reduce the occupied area. The foldable photovoltaic system realizes the deployment of more photovoltaic panels in a limited space, improves the space utilization and power generation efficiency, has good structural stability and occupies a small space, can be quickly unfolded and folded, is convenient to carry and store, and has high flexibility and adaptability.

[0072] The above implementation modes are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A foldable photovoltaic system, characterized in that: include: Column (1); A basic photovoltaic unit (2) is fixed on the top of the column (1); A flip assembly (3) is vertically rotatably arranged on the column (1), four groups of the flip assemblies (3) are evenly arranged along the circumference of the column (1), each group of the flip assemblies (3) comprises a bracket (31) and a first driving device (32), one end of the bracket (31) is vertically rotatably connected to the upper end of the column (1), the first driving device (32) is connected to the column (1), and the movable end of the first driving device (32) is connected to the bracket (31); A flippable photovoltaic unit (4) is fixed on the bracket (31), and the flip assembly (3) drives the flippable photovoltaic unit (4) to rotate in a vertical direction; The reversible photovoltaic unit (4) comprises a first reversible photovoltaic unit (401) and a second reversible photovoltaic unit (402); the first reversible photovoltaic unit (401) and / or the second reversible photovoltaic unit (402) comprise a telescopic unit (5) and a photovoltaic unit (6); the photovoltaic unit (6) is installed on the telescopic unit (5) so that the photovoltaic unit (6) can be telescopically connected to the first reversible photovoltaic unit (401) and / or the second reversible photovoltaic unit (402).

2. The foldable photovoltaic system according to claim 1, characterized in that: The telescopic unit (5) comprises a base frame (41) and a telescopic assembly (50); the base frame (41) is fixed to the bracket (31); the telescopic assembly (50) comprises a sliding frame (51), a transmission group (52) and a sliding group (53); the sliding frame (51) is arranged in the base frame (41) in a parallel and movable manner via the sliding group (53); the transmission group (52) drives the sliding group (53) to drive the sliding frame (51) to move.

3. The foldable photovoltaic system according to claim 2, characterized in that: The transmission group (52) comprises a transmission shaft (521), a conveyor belt (522) and a second driving device (523); the two transmission shafts (521) are arranged in parallel and connected to the base frame (41); the conveyor belt (522) is sleeved on the outside of the two transmission shafts (521); the second driving device (523) drives the transmission shaft (521) to drive the conveyor belt (522) to rotate; and the sliding frame (51) is fixedly connected to the conveyor belt (522).

4. The foldable photovoltaic system according to claim 3, characterized in that: One set of the transmission groups (52) corresponds to two sliding frames (51), and the two sliding frames (51) are respectively installed on the base frame (41) through two sets of the sliding groups (53) and are respectively fixedly connected to the upper and lower sides of the conveyor belt (522). The transmission group (52) drives the two sliding frames (51) to be retracted into the base frame (41) from both sides or to extend out of both sides of the base frame (41).

5. The foldable photovoltaic system according to claim 4, characterized in that: The two groups of the first flippable photovoltaic units (401) arranged opposite to each other include the photovoltaic units (6), and the photovoltaic units (6) are fixed on the bracket (31); The two groups of the second flippable photovoltaic units (402) arranged opposite to each other include the telescopic unit (5) and the photovoltaic unit (6), the telescopic assembly (50) on each of the telescopic units (5) includes two sliding frames (51), and the photovoltaic unit (6) is arranged on the base frame (41) and the two sliding frames (51).

6. The foldable photovoltaic system according to claim 3, characterized in that: The first flippable photovoltaic unit (401) and the second flippable photovoltaic unit (402) both include the telescopic unit (5) and the photovoltaic unit (6); the transmission group (52) of each telescopic assembly (50) drives a sliding frame (51); the photovoltaic unit (6) is disposed on the sliding frame (51) and the base frame (41); the transmission group (52) drives a sliding frame (51) to be retracted into the base frame (41) or extended out of the base frame (41).

7. The foldable photovoltaic system according to claim 3, characterized in that: The first flippable photovoltaic unit (401) and the second flippable photovoltaic unit (402) both include the telescopic unit (5) and the photovoltaic unit (6), and each telescopic assembly (50) includes two sliding frames (51), and each of the two sliding frames (51) is provided with one photovoltaic unit (6).

8. The foldable photovoltaic system according to claim 1, characterized in that: The first driving device (32) is a piston driving device, comprising a cylinder body (321) and a piston rod (322); the cylinder body (321) is vertically rotatably connected to the column (1), and the piston rod (322) is vertically rotatably connected to the bracket (31).

9. The foldable photovoltaic system according to claim 1, characterized in that: The column (1) comprises an upper column (11), a lower column (12) and a third driving device (13); the upper column (11) comprises a column body (111) and a support arm (112); the column body (111) is connected to the upper end of the lower column (12) via the third driving device (13); the support arm (112) is fixed to the upper end of the column body (111) in a horizontal direction; the basic photovoltaic unit (2) is fixed to the support arm (112); one end of the bracket (31) is vertically rotatably connected to the support arm (112); and one end of the third driving device (32) is vertically rotatably connected to the column body (111).

10. The foldable photovoltaic system according to claim 9, characterized in that: The third driving device (13) is a rotary driving machine, comprising a fixed end (131), an output end (132) and an input end (133); the fixed end (131) is fixedly connected to the lower support (12); the output end (132) is fixedly connected to the upper support (11); and the input end (133) drives the output end (132) to drive the upper support (11) to rotate horizontally.

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