A split-supported floating photovoltaic unit and a split-supported floating photovoltaic system

Abstract

The present invention relates to a split-supported water photovoltaic unit and a split-supported water photovoltaic system, wherein the photovoltaic unit comprises a floating unit floating on the water surface, a fixing frame connected to the floating unit, and a single photovoltaic module supported by the fixing frame, wherein the floating unit comprises two or more main floating bodies arranged at intervals and two connecting floating rows located at both ends of the main floating bodies and connecting the main floating bodies, wherein each connecting floating row is composed of more than one connecting floating body, a fixing frame is respectively arranged at both ends of each main floating body, a single photovoltaic module is respectively connected to the fixing frame on each main floating body, and a single photovoltaic module is jointly supported by all the main floating bodies in the photovoltaic unit. The system can stably support photovoltaic modules of various specifications and can significantly reduce production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of water photovoltaic power station systems, and in particular to a split-supported water photovoltaic unit and a split-supported water photovoltaic system. Background Art

[0002] The floating photovoltaic system is a power station equipment that builds a floating platform on the water surface and then uses brackets to install photovoltaic components on the floating platform.

[0003] The single photovoltaic panels of the existing water photovoltaic system are all fixed on a whole floating body by multiple brackets. For example, Suzhou Noah Jianzhou Photovoltaic Technology Co., Ltd. disclosed a photovoltaic array in its invention patent application with publication number CN107354926A and titled "A protective wall for a water photovoltaic array", which includes one or more photovoltaic modules, each photovoltaic module includes: a boundary, which includes a first plurality of transverse floating bodies and a plurality of longitudinal floating bodies, a second plurality of transverse floating bodies located within the boundary, and a plurality of main floating bodies located within the boundary, each main floating body is provided with a solar panel, wherein a plurality of main floating bodies are connected to the second plurality of transverse floating bodies or between the first plurality of transverse floating bodies and the second plurality of transverse floating bodies. Specifically, it is disclosed that a solar panel is provided on each main floating body. In addition, Sungrow Power Supply Co., Ltd. disclosed a floating photovoltaic power station on water in its Chinese utility model patent with authorization announcement number CN204859088U and titled "Connecting Floating Blocks, Floating Body Assembly Equipped with Connecting Floating Blocks and Floating Photovoltaic Power Station on Water", in which each floating body in the power station is equipped with each solar panel and supported on a floating body.

[0004] When installing solar panels with a long side of more than 2m, due to the limitations of equipment such as blow molding machines and molding processes, the existing single main float cannot reach the optimal installation point of the solar panel due to size limitations. For example, when a solar panel with a long side of 2m is installed on an existing single main float, the optimal installation distance in the length direction is 1.2-1.3m. However, according to the existing blow molding equipment and molding process, the size of the float in the long side direction corresponding to the solar panel installed on it is at most about 1.1m, so it cannot meet the requirements of the optimal installation point of the solar panel in the length direction. It should also be noted that according to the existing float manufacturing process, if you want to increase the size of the float, you need to update the blow molding machine, blow molding mold and other equipment, which undoubtedly requires a huge cost.

[0005] In addition, it can be seen from the above two prior art patent documents that in order to save production costs, through holes are opened in the main floating body to save materials. However, the problem of the best installation point of the large plate has not been solved. Summary of the invention

[0006] In order to solve the above problems, the purpose of the present invention is to provide a split-supported water photovoltaic unit and a split-supported water photovoltaic system, which can stably support photovoltaic components of various specifications and can significantly reduce production costs.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A split-supported water photovoltaic unit comprises a floating unit floating on the water surface, a fixing frame connected to the floating unit and a single photovoltaic module supported by the fixing frame, wherein the floating unit comprises two or more main floating bodies arranged at intervals and two connecting floating rows located at both ends of the main floating bodies and connecting the main floating bodies, each connecting floating row is composed of more than one connecting floating body, a fixing frame is respectively arranged at both ends of each main floating body, a single photovoltaic module is respectively connected to the fixing frame on each main floating body, and the single photovoltaic module is jointly supported by all the main floating bodies in the photovoltaic unit.

[0009] Furthermore, the main floating bodies are arranged parallel to each other, the two connecting floating rows are arranged parallel to each other, and each connecting floating row includes only one connecting floating body.

[0010] Furthermore, the main floating body and the connecting floating body are respectively connected to a pull ear, and the side walls of the pull ear are connected to outwardly protruding ribs, which extend horizontally along the side walls of the pull ear to the floating bodies on both sides of the pull ear. The ribs of each pull ear extend on the floating body and are connected to each other to form a closed outer ring beam that clamps the floating body and each pull ear.

[0011] Furthermore, the side surfaces and connection corners of the connecting buoy are provided with lugs for connecting with the main buoy and / or adjacent connecting buoys.

[0012] Furthermore, the lower part of the fixing frame is composed of two supporting legs to form a herringbone support frame body, the bottom ends of the supporting legs are fixedly connected with fastening bolts, the fixing frame is straddled on the main floating body, and the fastening bolts on the supporting legs pass through the pull ears on the main floating body and the connecting floating body and are fastened with fastening nuts to connect the main floating body and the adjacent connecting floating body together.

[0013] Furthermore, the upper portion of the fixing frame has an inclined clamping plate with a hook on one side, one side of the frame of the photovoltaic component is clamped in the hook, and the other side of the frame is clamped and fixed by a pressing strip detachably connected to the other side of the clamping plate.

[0014] Furthermore, the clamping plate is detachably connected to the top of the support frame body by two mutually hinged positioning plates, the top of the support frame body is provided with a convex horizontal positioning tenon, the positioning plate is provided with a concave tenon groove that fits with the positioning tenon, the two positioning plates clamp the top of the support frame body and are fastened together by fasteners, and the clamping plate is fixedly connected to the positioning plate located above.

[0015] Furthermore, the clamping plate, the pressing strip and the two positioning plates are all made of aluminum alloy.

[0016] Furthermore, the fixing frame at one end of the main floating body is higher than the fixing frame at the other end of the main floating body.

[0017] A split-supported water photovoltaic system comprises a plurality of the above-mentioned split-supported water photovoltaic units, wherein each photovoltaic unit is interconnected and extended laterally by connecting floating bodies, and each photovoltaic unit is interconnected and extended longitudinally by staggered arrangement of main floating bodies and connecting floating rows.

[0018] The present invention has the following beneficial effects:

[0019] The photovoltaic unit and single photovoltaic module of the photovoltaic system of the present invention are jointly supported by more than two main floating bodies. The main floating bodies are spaced apart so that the distance between the floating bodies can be adjusted according to the size of the photovoltaic module. This can adapt to the installation and support of photovoltaic modules of various specifications, especially large-panel photovoltaic modules of more than 2 meters, and can reduce the maximum bending moment of the photovoltaic module, thereby reducing stress damage and deformation of the photovoltaic module.

[0020] The two positioning plates sandwiched between the upper and lower parts of the fixing frame of the present invention and the concave-convex matching method can increase the force-bearing area and force points. The connection rigidity between the fixing frame and the photovoltaic module is strengthened by strengthening the force-bearing area and force points of the fixing frame and the photovoltaic module, so that the fixing frame and the photovoltaic group form a rigid frame structure, and the fixing frame and the main floating body bracket are only fastened by bolts, and the connection rigidity is much lower than the connection rigidity of the fixing frame and the photovoltaic module. Therefore, when the water surface fluctuation causes the floating system to rise and fall, the floating platform formed by the main floating body and the connecting floating body absorbs the water surface fluctuation through its own deformation, and the upper support frame and the photovoltaic module fluctuate less.

[0021] The fixing frame adopts a structure in which the lower fork can be straddled on the main floating body, and the fixing frame, the main floating body and the connecting floating body are directly connected by the fastening bolts at the bottom, which can not only reduce the number of components, but also simplify the installation procedures and improve the installation efficiency. The upper and lower parts of the fixing frame can be detachably connected, and the upper card plate with greater force and the lower more stable support frame body can be made of different materials. For example, the upper card plate can be made of aluminum alloy with higher strength, and the lower support frame body can be made of plastic, which can greatly reduce the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the main floating body of the present invention;

[0024] Figure 3It is a structural schematic diagram of the connection floating body of the present invention;

[0025] Figure 3-1 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 4 It is a structural schematic diagram of the triangular groove inside the outer ring beam of the floating body of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the inner and outer ring beams of the floating body of the present invention;

[0028] Figure 6 It is a schematic diagram of a top view of the structure of the first embodiment of the present invention;

[0029] Figure 7 It is a side view structural schematic diagram of the first embodiment of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the fixing frame of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the support frame of the present invention;

[0032] Fig.10 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0033] Fig.11 It is a structural schematic diagram of the connection between the fixing frame and the photovoltaic module of the present invention;

[0034] Fig.12 It is a structural schematic diagram of the connection between the fixing frame of the present invention and the main floating body and the connecting floating body;

[0035] Fig.13 A structural schematic diagram of a connection arrangement mode between the main floating body and the connection floating body of the present invention;

[0036] Fig.14 It is another structural schematic diagram of the connection arrangement of the main floating body and the connecting floating body of the present invention.

[0037] Description of reference numerals:

[0038] 1-floating unit, 10-main floating body, 101-connecting floating row, 102-connecting floating body, 1021-upper groove, 1022-lower groove, 1023-inner groove, 1024-connecting groove, 11-main structure, 111-upper bottom surface, 112-lower bottom surface, 113-side, 114-connecting top angle, 12-pull ear, 120-through hole, 1201-positioning port, 1202-reinforcement rib, 121-side wall, 122-rib, 13-outer ring beam, 131-triangular groove, 132-first annular groove, 133-second annular groove, 134-hollow channel, 135-protruding portion, 14-inner ring beam, 15-shallow receiving groove, 161-first recess, 162-second recess, 2-fixed frame, 21-support frame, 201-front support, 202-rear support, 210-support frame body, 211-supporting foot, 2111-crossbeam, 212-positioning head, 2121-connecting plate, 2122-positioning tenon, 2124-side plate, 2125-ridge plate, 22-fixing assembly, 221-first positioning member, 2211-card plate, 2212-card groove, 2213-card hook, 2214-connecting strip, 2215-round groove, 2216-first tenon groove, 2217-first positioning plate, 2 22-second positioning member, 2221-pin shaft, 2222-second mortise and tenon, 2223-second positioning plate, 2224-bending portion, 223-pressing strip, 2231-top edge, 2232-side edge, 2233-bottom edge, 2234-friction surface, 2235-clamping protrusion, 31-fastening bolt, 311-limiting plate, 312-positioning rib, 4-photovoltaic module, 41-photovoltaic panel frame. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0040] Embodiment 1

[0041] See also Figures 1 to 14 A split-supported water photovoltaic unit comprises a floating unit 1 floating on the water surface, a supporting system connected to the floating unit 1, and a single photovoltaic module 4 supported by and connected to the supporting system.

[0042] The floating unit 1 includes two or more main floating bodies 10 arranged in parallel and at intervals, and two linear connecting floating rows 101 located at the front and rear ends of the main floating body 10, arranged perpendicular to the main floating body 10 and connected to the main floating body 10. The two connecting floating rows 101 are arranged parallel to each other, and each connecting floating row 101 is composed of one or more connecting floating bodies 102.

[0043] See also Figures 2 to 6The main structures 11 of the main floating body 10 and the connecting floating body 102 are connected to the upper bottom surface 111 and the lower bottom surface 112 respectively with the side surface 113 located between the upper and lower bottom surfaces to form a rectangular parallelepiped shape with an inner cavity. The main floating body 10 is a slender strip, and the connecting floating body 102 is a strip slightly wider than the main floating body 10. The connecting vertex 114 of the side surface 113 of the main floating body 10 is integrally formed with a pull ear 12 for connecting the main floating body 10 and the connecting floating body 102. The pull ear 12 is integrally formed on the side surface 113 of the connecting floating body 102 and at the connecting vertex 114 of the side surface 113. In this embodiment, a pull ear 12 is provided at each of the four connection vertex corners 114 of the main floating body 10, a pull ear 12 is provided at each of the four connection vertex corners 114 of the connecting floating body 102, and a pull ear 12 is provided on each of the long side surfaces 113 of the connecting floating body 102 near two connection vertex corners 114, and the distance between the pull ear 12 on the side surface 113 of the connecting floating body 102 and the pull ear 12 at the connection vertex corner 114 close to it is the same as the distance between the pull ears 12 at the two connection vertex corners 114 on the short side of the main floating body 10.

[0044] The pull ear 12 is flat and has a through hole 120 in the middle portion that passes through the upper and lower surfaces of the pull ear 12. The inner wall of the through hole 120 is evenly provided with a plurality of concave positioning holes 1201. The upper and lower surfaces of the pull ear 12 are provided with reinforcing ribs 1202 evenly arranged around the through hole 120 on the outer periphery of the through hole 120. The side wall 121 of the pull ear 12 is integrally formed with an outwardly protruding rib 122. The rib 122 extends horizontally along the side wall 121 of the pull ear 12 to the side surface 113 of the main structure 11 on both sides of the pull ear 12. The ribs 122 of each pull ear 12 extend from the side surface 113 of the main structure 11 to be connected to each other to form a closed outer ring beam 13 that clamps the main structure 11 and each pull ear 12. The HDPE float formed by the blow molding process is very likely to have the following problems due to the arrangement of the outer ring beam 13 on the inner wall of the main structure 11 corresponding to the outer ring beam 13. Figure 4 The vertical section that is shown to be recessed toward the outer ring beam 13 side is the triangular groove 131 of triangular shape, so just easily makes stress concentration at the vertex of triangular groove 131, and the vertex of triangular groove 131 is the position of parting line, therefore easily causes the floating body to crack.In order to solve the above problem, can make the inner wall of the corresponding outer ring beam 13 of main structure 11 keep smooth to improve the mechanical property of outer ring beam 13 by extrusion die during blow moulding.As preferred scheme, the position of the corresponding outer ring beam 13 inside described main structure 11 is provided with the inner ring beam 14 that protrudes inwards, and the setting of inner and outer ring beams increases the horizontal overall width of ring beam, further improves the structural strength of ring beam.

[0045] Further, the upper surface of the outer ring beam 13 is provided with a concave first annular groove 132, and the first annular groove 132 extends along the outer ring beam 13 to form a closed ring. The lower surface of the outer ring beam 13 is provided with a concave second annular groove 133, and the second annular groove 133 extends along the outer ring beam 13 to form a closed ring. The first annular groove 132 and the second annular groove 133 are correspondingly arranged on the outer ring beam 13 up and down so that the vertical cross-sectional shape of the outer ring beam 13 is an "I" shape. The outer ring beam 13 is provided with a hollow closed hollow channel 134 arranged along the outer ring beam 13 inside the outer protruding part 135 of the first annular groove 132 and the second annular groove 133.

[0046] A concave shallow receiving groove 15 is provided at the position corresponding to the side pull ear 12 on the main structure 11 of the connection float 102. The side pull ear 12 is received in the shallow receiving groove 15 and is connected to the main structure 11 as a whole. Due to the provision of the outer ring beam 13, the shallow receiving groove 15 on the connection float 102 can be shallower than the receiving groove on the float in the prior art. A concave first depression 161 is provided at a position close to the upper bottom surface 111 on the side surface 113 of the main structure 11 of the connection float 102, and a concave second depression 162 is provided at a position close to the lower bottom surface 112 on the side surface 113 of the main structure 11. The first depression 161 and the second depression 162 are locally small. The first depression 161 and the second depression 162 on the same side surface 113 of the main structure 11 are provided correspondingly up and down.

[0047] Furthermore, the upper bottom surface 111 of the main structure of the connecting float 102 is provided with a fork-shaped downwardly recessed upper groove 1021, and the center position of the lower bottom surface 112 of the main structure of the connecting float 102 is provided with an oblong upwardly recessed lower groove 1022, and the lower groove 1022 is provided with a plurality of circular inner grooves 1023 located on the same straight line that are further recessed upward relative to the lower groove 1022, and the inner grooves 1023 are connected to each other by strip-shaped connecting grooves 1024.

[0048] The main floating body 10 and its adjacent connecting floating body 102 and two adjacent connecting floating bodies 102 are fastened together by fasteners passing through the upper and lower overlapping pull ears of the connecting floating bodies 102.

[0049] See also Figure 1 , Figures 7 to 12 The support system includes a front support 201 located in the front row and including at least two fixing frames 2, and a rear support 202 located in the rear row and including at least two fixing frames 2. The number of fixing frames 2 of the front support 201 and the rear support 202 is the same as the number of the main floating body 10, and a fixing frame 2 is respectively arranged at the front and rear ends of each main floating body 10.

[0050] The fixing frame 2 includes a support frame 21 for connecting with the main floating body 10 and a fixing assembly 22 for fixing the photovoltaic panel frame 41 of the photovoltaic assembly 4. The support frame 21 and the fixing assembly 22 are detachably connected together.

[0051] The support frame 21 has a herringbone support frame body 210 formed by two legs 211. A crossbeam 2111 is preferably connected between the two legs 211 of the support frame body 210 to enhance the structural strength. A fastening bolt 31 is fixedly connected to the bottom end of the leg 211. The fastening bolt 31 can directly pass through the through hole 120 of the pull ear 12 and is fixedly connected with the fastening nut. A limit plate 311 larger than the through hole of the pull ear 12 is provided at the part where the fastening bolt 31 is connected to the leg 211 to prevent the fixing frame 2 from sinking. A vertical positioning rib 312 matching the positioning port 1201 is provided near the upper part of the fastening bolt 31 near the limit plate 311. A thread is provided at the lower part of the fastening bolt 31 to be screwed with the fastening nut to connect the support frame 21 with the main floating body 10 and the connecting floating body 102.

[0052] A flat positioning head 212 is connected to the upper part of the support frame body 210. The positioning head 212 has a plate-shaped connecting plate 2121. A plurality of mutually spaced and horizontally arranged positioning tenons 2122 are arranged on both sides of the connecting plate 2121. The two end edges of the positioning tenons 2122 are flush with the two end edges of the connecting plate 2121. Through holes are provided in the upper and lower parts of the positioning head 212. The two ends of the connecting plate 2121 are respectively connected to side plates 2124 arranged perpendicular to the connecting plate 2121. The side plates 2124 extend horizontally to the sides of both sides to the outside of the positioning tenons 2122 on both sides of the connecting plate 2121. The side plates 2124 extend from the top of the connecting plate 2121 to the bottom of the supporting leg 211. Preferably, the portion where the support frame body 210 is connected to the positioning head 212 is arc-shaped, and the side plate 2124 at the connection is connected with a vertical ridge plate 2125, and the ridge plate 2125 fits with the arc-shaped side plate 2124 to form a shape with small ends and a large middle. Optionally, the support frame 21 is integrally formed of plastic.

[0053] The fixing assembly 22 includes a first positioning member 221, a second positioning member 222 and a pressing strip 223. The top of the first positioning member 221 has an inclined card plate 2211, a card slot 2212 is provided on the top surface of one end of the card plate 2211, and a card hook 2213 is folded toward the card slot 2212 of the card plate 2211 on the top surface of the other end of the card plate 2211. The first positioning member 221 is fixed with a circular groove 2215 with an opening through a plurality of connecting strips 2214 below the card plate 2211, and the opening of the circular groove 2215 is arranged toward the lower end of the card plate 2211. The first positioning member 221 is provided with a first positioning plate 2217 with a plurality of first tongue grooves 2216 arranged at intervals below the circular groove 2215, and the first tongue grooves 2216 on the first positioning plate 2217 are engaged with the positioning tongue strips 2122 on one side of the positioning head 212 one by one. The top of the second positioning member 222 has a horizontally arranged pin shaft 2221 that can be rotatably connected to the circular groove 2215 on the first positioning member 221. The second positioning member 222 is provided with a second positioning plate 2223 having a plurality of second tongue grooves 2222 arranged at intervals below the pin shaft 2221. The second tongue grooves 2222 on the second positioning plate 2223 are snap-fitted with the positioning tongue strips 2122 on the other side of the positioning head 212 one by one. The top of the second positioning plate 2223 has a bending portion 2224. The first positioning plate 2217 of the first positioning member 221 and the second positioning plate 2223 of the second positioning member 222 are respectively provided with through holes for fasteners to pass through. Fasteners such as fastening bolts 31 and nuts are used to sequentially pass through the first positioning plate 2217 of the first positioning member 221, the connecting plate 2121 of the positioning head 212, and the second positioning plate 2223 of the second positioning member 222 to fix the three.

[0054] The pressing strip 223 has a top edge 2231 that can fit the top surface of the photovoltaic panel frame 41, a side edge 2232 that fits the side of the photovoltaic panel frame 41, and a bottom edge 2233 that fits the card board 2211. The bottom edge 2233 is provided with a through hole, and the pressing strip 223 is fixedly connected to the card board 2211 after passing through the bottom edge 2233 and the card board 2211 by a fastener. Specifically, the top edge 2231, the side edge 2232 and the bottom edge 2233 form a Z shape and cooperate with the card board 2211 to form a snap-fitting portion that can snap-fit ​​the side frame of the photovoltaic panel frame 41. Preferably, the bottom surface of the top edge 2231 close to the top surface of the photovoltaic panel frame 41 has a serrated friction surface 2234. The bottom surface of the bottom edge 2233 is provided with a snap-fitting protrusion 2235 that can be snapped in the card slot 2212 of the card board 2211.

[0055] The first positioning member 221 and the second positioning member 222 in the fixing assembly 22 are rotatably connected together through the circular groove 2215 and the pin shaft 2221. After the tenons of the first positioning member 221 and the second positioning member 222 are snap-fitted with the tenons of the support frame 21 one by one, fasteners are used to fix the first positioning member 221 and the second positioning member 222 on the positioning head 212 of the support frame 21. The side edge of the photovoltaic panel frame 41 is clamped inside the hook 2213 of the clamping plate 2211 of the first positioning member 221, and the other side of the photovoltaic panel frame 41 is fixed using a pressing strip 223. Specifically, the top edge 2231 of the pressing strip 223 is pressed on the top surface of the photovoltaic panel frame 41, the side edge 2232 is attached to and against the side edge of the photovoltaic panel frame 41, and the clamping protrusion 2235 of the bottom edge 2233 is clamped in the clamping groove 2212 of the clamping plate 2211. Finally, a fastener is passed through the bottom edge 2233 and the clamping plate 2211 to fix the pressing strip 223 on the first positioning member 221. Preferably, the fixing assembly 22 is made of aluminum alloy.

[0056] The height of the fixing frame 2 of the rear support 202 is higher than that of the fixing frame 2 of the front support 201. A crossbeam 2111 is arranged between the two legs 211 of the support frame 21 of the rear support 202, and the crossbeam 2111 between the two legs 211 of the support frame 21 is omitted because the front support 201 is lower in height.

[0057] The fixing frame 2 of the front support 201 is arranged across the front end of the main floating body 10, and the two legs 211 are respectively located on both sides of the front end of the main floating body 10 and clamp the main floating body 10. The fastening bolts 31 at the bottom respectively pass through the pull ears 12 at the connection top angles 114 on both sides of the front end of the main floating body 10 and the pull ears 12 of the front adjacent connecting floating body 102 close to the main floating body 10 side, and then the front support 201, the front end of the main floating body 10 and the connecting floating body 102 adjacent to the front end are fixedly connected together by the fastening nuts. Similarly, the fixing frame 2 of the rear support 202 is arranged across the rear end of the main floating body 10, and the fastening bolts 31 at the bottom of the two legs 211 respectively pass through the pull ears 12 at the connection top angles 114 on both sides of the rear end of the main floating body 10 and the pull ears 12 of the rear adjacent connecting floating body 102 close to the main floating body 10 side, and then the front support 201, the rear end of the main floating body 10 and the connecting floating body 102 adjacent to the rear end are fixedly connected together by the fastening nuts.

[0058] The card slot 2212 of the card plate 2211 of the front support 201 is set at the lower end, and the hook 2213 is set at the higher end. The card slot 2212 of the card plate 2211 of the rear support 202 is set at the higher end, and the hook 2213 is set at the lower end, so that the pressing strip 223 of the front support 201 can press the lower side of the photovoltaic panel frame 41, and the pressing strip 223 of the rear support 202 can press the higher side of the photovoltaic panel frame 41.

[0059] Optional, see Fig.13 and Fig.14 , all the main floating bodies 10 of a photovoltaic unit are connected to one connecting floating body 102, or each main floating body 10 of a photovoltaic unit is connected to one connecting floating body 102 and the connecting floating bodies 102 connected to the main floating bodies 10 are connected to each other, or each main floating body 10 of a photovoltaic unit is connected to one connecting floating body 102 and more than one connecting floating body 102 is connected between the connecting floating bodies 102 connected to the main floating bodies 10. Preferably, all the main floating bodies 10 of a photovoltaic unit are connected to one connecting floating body 102, that is, the front and rear ends of the main floating body 10 of a photovoltaic unit supporting one photovoltaic panel are respectively connected and fixed to one connecting floating body 102, so as to improve the stability of the photovoltaic unit.

[0060] Embodiment 2

[0061] See also Figure 1 A split-supported water photovoltaic system includes multiple split-supported water photovoltaic units as in Example 1. Each photovoltaic unit is laterally expanded by interconnecting the connecting floats 102, and each photovoltaic unit is longitudinally expanded by interconnecting the main floats 10 and the connecting floats 101 through an alternating arrangement.

[0062] The above description is only a specific implementation mode of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A split-supported floating photovoltaic unit, comprising a floating unit (1) floating on the water surface, a fixing frame (2) connected to the floating unit (1), and a single photovoltaic module (4) supported by the fixing frame (2), characterized in that: The floating unit (1) comprises two or more main floating bodies (10) arranged at intervals and two connecting floating rows (101) located at both ends of the main floating bodies (10) and connecting the main floating bodies (10), each connecting floating row (101) is composed of one or more connecting floating bodies (102), a fixing frame (2) is respectively arranged at both ends of each main floating body (10), a single photovoltaic module (4) is respectively connected to the fixing frame (2) on each main floating body (10), and a single photovoltaic module (4) is jointly supported by all the main floating bodies (10) in the photovoltaic unit; The lower part of the fixing frame (2) is composed of two supporting legs (211) to form a herringbone support frame body (210), the bottom ends of the supporting legs (211) are fixedly connected with fastening bolts (31), the fixing frame (2) is straddled on the main floating body (10), and the fastening bolts (31) on the supporting legs (211) pass through the lugs (12) on the main floating body (10) and the connecting floating body (102) and are fastened with fastening nuts, thereby connecting the main floating body (10) and the adjacent connecting floating body (102) together; The fixing frame (2) at one end of the main floating body (10) is higher than the fixing frame (2) at the other end of the main floating body (10).

2. The split-supported floating photovoltaic unit according to claim 1 is characterized in that: The main floating bodies (10) are arranged in parallel with each other, the two connecting floating rows (101) are arranged in parallel with each other, and each connecting floating row (101) includes only one connecting floating body (102).

3. The split-supported floating photovoltaic unit according to claim 1 is characterized in that: The main floating body (10) and the connecting floating body (102) are respectively connected with a pull ear (12), and the side wall (121) of the pull ear (12) is connected with a rib (122) protruding outward, and the rib (122) extends horizontally along the side wall (121) of the pull ear (12) to the floating bodies on both sides of the pull ear (12), and the ribs (122) of each pull ear (12) extend on the floating body until they are connected to each other to form a closed outer ring beam (13) that clamps the floating body and each pull ear (12).

4. The split-supported floating photovoltaic unit according to claim 1 is characterized in that: The side surfaces (113) and the connection top corners (114) of the connection floating body (102) are both provided with pull ears (12) connected to the main floating body (10) and / or the adjacent connection floating body (102).

5. The split-supported floating photovoltaic unit according to claim 1 is characterized in that: The upper part of the fixing frame (2) has an inclined clamping plate (2211) with a clamping hook (2213) on one side, one side of the frame (41) of the photovoltaic assembly (4) is clamped in the clamping hook (2213), and the other side of the frame (41) is clamped and fixed by a pressing strip (223) detachably connected to the other side of the clamping plate (2211).

6. The split-supported floating photovoltaic unit according to claim 5 is characterized in that: The clamping plate (2211) is detachably connected to the top of the support frame body (210) via two mutually hinged positioning plates; the top of the support frame body (210) is provided with an outwardly convex horizontal positioning tenon (2122); the positioning plate is provided with an inwardly concave tenon groove that is engaged with the positioning tenon (2122); the two positioning plates clamp the top of the support frame body (210) and are fastened together via fasteners; the clamping plate (2211) is fixedly connected to the positioning plate located above.

7. The split-supported floating photovoltaic unit according to claim 6 is characterized in that: The clamping plate (2211), the pressing strip (223) and the two positioning plates are all made of aluminum alloy.

8. A split-supported floating photovoltaic system, characterized in that: The invention comprises a plurality of split-supported water photovoltaic units as claimed in any one of claims 1 to 7, wherein each photovoltaic unit is interconnected and extended laterally by connecting the floating bodies (102), and each photovoltaic unit is interconnected and extended longitudinally by staggered arrangement of the main floating body (10) and the connecting floating rows (101).

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