A tensioned beam structure and a flexible photovoltaic system

Abstract

This invention belongs to the field of photovoltaic support systems and discloses a tensioned beam structure and a flexible photovoltaic system. The tensioned beam structure is used to connect multiple rows of flexible photovoltaic supports spaced apart along a first direction. The flexible photovoltaic supports include a load-bearing cable assembly, which includes a load-bearing cable extending along a second direction. The first direction is perpendicular to the second direction. The tensioned beam structure includes: at least two support columns spaced apart along the first direction; a tensioned beam fixedly disposed on the top of at least two of the support columns; a tension cable disposed below the tensioned beam, with one end fixedly connected to one end of the tensioned beam and the other end fixedly connected to the other end of the tensioned beam; and at least one support component fixedly disposed on the tensioned beam, with the upper end of the support component for connecting to the load-bearing cable and the lower end of the support component for abutting against the tension cable. This application improves the stability and wind resistance of the flexible support system.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic support technology, and more particularly to a tensioned beam structure and a flexible photovoltaic system. Background Technology

[0002] Solar power generation is an important way to utilize solar energy. Currently, the photovoltaic (PV) support systems mainly use rigid PV support systems and flexible PV support systems. Flexible PV support systems are widely used in complex and diverse terrains such as agriculture, fisheries, mountains, and tidal flats due to their large span and strong adaptability.

[0003] However, flexible photovoltaic (PV) brackets use steel strands to install PV modules, and the span is relatively large. Under wind loads, they are prone to significant deformation. The steel strands will expand and contract under various loads. Since the PV modules are directly installed on the steel strands, they will deform along with the steel strands, leading to damage to the PV modules. Therefore, how to improve the stability and wind resistance of flexible PV brackets to ensure the safe operation of PV modules under wind loads is an urgent problem to be solved. Summary of the Invention

[0004] The purpose of this application is to provide a tensioned beam structure and a flexible photovoltaic system that can improve the stability and wind resistance of the flexible photovoltaic system.

[0005] The technical solution provided in this application is as follows:

[0006] On one hand, a tensioned beam structure is provided for connecting multiple rows of flexible photovoltaic supports spaced apart along a first direction. The flexible photovoltaic supports include a load-bearing cable assembly, which includes load-bearing cables extending along a second direction. The first direction is perpendicular to the second direction. The tensioned beam structure includes:

[0007] At least two support columns are spaced apart along the first direction;

[0008] A tension beam is fixedly installed on the top of at least two of the support columns;

[0009] The tension cable is located below the tension beam, with one end fixedly connected to one end of the tension beam and the other end fixedly connected to the other end of the tension beam.

[0010] At least one support component is fixedly disposed on the tensioned beam, the upper end of the support component is used to connect with the load-bearing cable, and the lower end of the support component is used to abut against the tensioned cable.

[0011] In some embodiments, the support assembly includes a first strut and a second strut, the upper end of the first strut being fixedly connected to the tensioned beam, the second strut being fixedly connected to the lower end of the first strut and tensioning the tensioned cable, and the second strut extending along the second direction.

[0012] In some embodiments, the support assembly further includes a third strut, the lower end of which is fixedly connected to the second strut, and the upper end of which is used to connect to the load-bearing cable assembly of the flexible photovoltaic bracket. There are four third struts, two of which are fixedly connected to one end of the second strut and arranged in a V-shape, and the other two are fixedly connected to the other end of the second strut and arranged in a V-shape. The upper ends of the four third struts are respectively connected to the corresponding load-bearing cables.

[0013] In some embodiments, the four third struts are used to connect the load-bearing cables of two adjacent sets of load-bearing cable assemblies; or, the four third struts are used to connect the load-bearing cables of the same set of load-bearing cable assemblies.

[0014] In some embodiments, the third support rod is an angle steel, square tube, or round tube structure, and a limiting structure is provided on the third support rod to allow the load-bearing cable to pass through. The third support rod is slidably connected to the load-bearing cable through the limiting structure.

[0015] In some embodiments, the limiting structure is a U-bolt, a lifting eye bolt, or a semi-circular structure.

[0016] In some embodiments, a reinforcing plate is provided at the connection point between the tensioned beam and the first strut; and / or;

[0017] The first strut has a reinforcing rib on the side wall at the end where it connects to the tensioned beam; and / or;

[0018] The second support rod is provided with a slot, and the tension cable is disposed in the slot.

[0019] In some embodiments, the tensioned beam is provided with a plurality of protruding columns and limiting ring assemblies spaced apart along the first direction. The protruding columns are provided with limiting portions for the load-bearing cables to pass through. The protruding columns and the limiting ring assemblies are arranged alternately along the first direction, and one protruding column and one limiting ring assembly are correspondingly arranged with one load-bearing cable assembly. Each limiting ring assembly includes one or more limiting rings arranged along the second direction.

[0020] In some embodiments, the support column is a lattice column, and a diagonal brace is provided between the support column and the tensioned beam. One end of the diagonal brace is fixedly connected to the tensioned beam, and the other end is fixedly connected to the support column.

[0021] On the other hand, a flexible photovoltaic system is also provided, including multiple rows of flexible photovoltaic supports and a tensioned beam structure as described in any of the above embodiments, wherein the multiple rows of flexible photovoltaic supports are spaced apart along a first direction, and the tensioned beam structure connects the multiple rows of flexible photovoltaic supports.

[0022] The technical advantage of this application is that by connecting the tensioned beam, tensioned cable, and supporting components, a stable spatial structure can be formed to stably support the load-bearing cable, thereby ensuring that the photovoltaic modules are stably supported on the load-bearing cable. This reduces the deformation of the load-bearing cable and the damage to the photovoltaic modules on the load-bearing cable under the influence of strong external winds, and greatly improves the stability and wind resistance of the flexible photovoltaic system. Attached Figure Description

[0023] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0024] Figure 1 This is a schematic diagram of the structure of a flexible photovoltaic support provided in a specific embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the structure of a photovoltaic system provided in a specific embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the tensioned beam from one perspective, provided in a specific embodiment of this application;

[0027] Figure 4 This is a structural schematic diagram of a tensioned beam under another perspective, provided in a specific embodiment of this application;

[0028] Figure 5 This is a partial schematic diagram of a flexible photovoltaic support provided in a specific embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the structure of the support component provided in a specific embodiment of this application;

[0030] Figure 7 This is a schematic diagram of the structure of the support component supporting the load-bearing cable provided in a specific embodiment of this application;

[0031] Figure 8 This is a schematic diagram of the structure of the U-bolt on the third support rod and the load-bearing cable in a specific embodiment of this application;

[0032] Figure 9 This is a schematic diagram of the structure of the tapered connecting frame provided in a specific embodiment of this application;

[0033] Figure 10 This is a schematic diagram of the structure of the zipper assembly and the tapered connecting frame provided in a specific embodiment of this application;

[0034] Figure 11 yes Figure 10 A magnified view of a portion of the image.

[0035] Explanation of icon numbers:

[0036] 10. Photovoltaic modules;

[0037] 100. Load-bearing cable assembly; 110. Load-bearing cable; 111. First load-bearing cable; 112. Second load-bearing cable; 113. Third load-bearing cable; 120. Conical connecting frame; 121. First vertex; 122. Second vertex; 123. Third vertex; 124. Fourth vertex; 130. Connecting rod; 140. Stabilizing cable;

[0038] 200. Support column; 201. First support column; 202. Second support column; 203. Third support column; 210. Diagonal brace;

[0039] 300. Tensioned beam; 310. Limiting ring; 320. Reinforcing plate; 330. Protruding column; 331. Limiting part;

[0040] 400. Zhang Xian Suo;

[0041] 500, Support assembly; 510, First strut; 511, Reinforcing rib; 512, Fixing plate; 520, Second strut; 521, Slot; 530, Third strut; 531, U-bolt; 540, First connecting plate;

[0042] 610. Crossbeam; 620. Side column; 630. Fixing cable;

[0043] 700, Row-to-row connection assembly; 710, First connecting rod; 720, Second connecting rod; 730, Cable assembly; 731, First cable; 732, Second cable; 740, Third connecting rod; 750, Wind-resistant cable. Detailed Implementation

[0044] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0046] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0047] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0048] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; or they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) are relative rather than absolute when describing the structure and movement of the various components, and are not intended to limit the direction of the product during actual use.

[0050] Furthermore, in the description of this application, ordinal numbers, such as "first" and "second," are used only to distinguish related objects and should not be construed as indicating or implying the relative importance or order between related objects.

[0051] like Figures 1 to 4 As shown, in one or more embodiments, this disclosure provides a flexible photovoltaic system. The flexible photovoltaic system includes multiple rows of flexible photovoltaic supports and a tensioned beam structure. The multiple rows of flexible photovoltaic supports are connected by the tensioned beam structure. Each row of flexible photovoltaic supports includes a load-bearing cable assembly 100. The tensioned beam structure includes at least two support columns 200, a tensioned beam 300, a tensioned cable 400, and multiple support components 500.

[0052] Multiple load-bearing cable assemblies 100 of the flexible photovoltaic system are spaced apart along a first direction. Each load-bearing cable assembly 100 includes two load-bearing cables 110 spaced apart. The load-bearing cables 110 extend along a second direction, that is, the second direction is the length direction of the load-bearing cables 110. The first direction is perpendicular to the second direction, that is, the first direction is perpendicular to the length direction of the load-bearing cables 110. The multiple load-bearing cable assemblies 100 are spaced apart along the first direction, which is perpendicular to the length direction of the load-bearing cables 110, to form multiple rows of flexible photovoltaic supports. Figure 2 The direction indicated by the middle arrow 'a' is the first direction, and the direction indicated by the middle arrow 'b' is the second direction.

[0053] Photovoltaic modules 10 are installed on two load-bearing cables 110 of each load-bearing cable assembly 100, and multiple photovoltaic modules 10 can be arranged along the length of the load-bearing cable 110 to form a row of photovoltaic modules. When photovoltaic modules 10 are installed on multiple load-bearing cable assemblies 100, multiple rows of photovoltaic modules can be formed along the first direction, thereby forming a photovoltaic array, which can receive solar radiation over a larger area to maximize the power generation efficiency of the photovoltaic system. The specific number of load-bearing cable assemblies 100 is not limited here and can be flexibly set according to the actual application scenario, all of which are within the protection scope of this application and will not be elaborated further here.

[0054] like Figure 5 As shown, the flexible photovoltaic system also includes a crossbeam 610 and a side column 620. The crossbeam 610 is located at the upper end of the side column 620 and extends along a first direction. The two ends of the load-bearing cable 110 are respectively connected to the corresponding crossbeam 610 to fix the load-bearing cable 110. In this embodiment, the flexible photovoltaic system includes two crossbeams 610, which are spaced apart along a second direction. Both crossbeams 610 extend along the first direction and are respectively located at the top of the side columns 620 of the multi-row flexible photovoltaic support, connecting the side columns 620 of the multi-row flexible photovoltaic support. The connection of the multi-row flexible photovoltaic support through the two crossbeams 610 increases the strength of the flexible photovoltaic system and improves its wind resistance and construction convenience.

[0055] Please continue to refer to this. Figure 5The flexible photovoltaic system also includes multiple fixed cable assemblies, which are correspondingly arranged with multiple load-bearing cable assemblies 100. Each load-bearing cable assembly 100 has a fixed cable assembly at both ends. Each fixed cable assembly includes two fixed cables 630, one end of which is connected to a crossbeam 610, and the other end is connected to the same pile foundation. The two fixed cables 630 are arranged in a V-shape, and the two fixed cables 630 and the crossbeam 610 together form a triangular structure. This arrangement allows the two fixed cables 630 to share a single pile foundation, reducing the number of pile foundations and lowering costs. Simultaneously, a stable triangular structure is formed between the fixed cable assembly, the side column 620, and the ground, improving the overall stability of the flexible photovoltaic support structure. Furthermore, the side column 620 is inclined to the ground, and the fixing cable assembly is vertically installed on the ground. The angle between the side column 620 and the load-bearing cable assembly 100 is equal to the angle between the side column 620 and the fixing cable assembly. The side column 620 simultaneously bears a horizontal tension F1 from the load-bearing cable assembly 100 and a vertical downward tension F2 from the fixing cable assembly. When the angle between the side column 620 and the load-bearing cable assembly 100 is the same as the angle between the side column 620 and the fixing cable assembly, the direction of the resultant force F of the tension F1 and the tension F2 coincides with the axis of the side column 620. The side column 620 is an axially compressed member and is not affected by horizontal shear force. This allows for a design without horizontal shear force on the side column 620, avoiding the risk of damage to the vertical side column 620 caused by horizontal displacement of the foundation due to excessive horizontal force. By setting two crossbeams 610 and tilting the side columns 620 to the ground, while the fixing cable assembly is vertically positioned on the ground, the angle between the side columns 620 and the load-bearing cable assembly 100 is equal to the angle between the side columns 620 and the fixing cable assembly. This reduces the number of side columns 620, eliminating the need to install side columns 620 at both ends of each row of flexible photovoltaic supports to meet the support requirements for the load-bearing cable assembly 100 and the photovoltaic modules 10 on it. In this embodiment, as shown... Figure 5 As shown, in the multiple rows of flexible photovoltaic brackets spaced apart along the first direction, only the ends of the front and rear rows of flexible photovoltaic brackets need to be equipped with side columns 620 in every three rows of flexible photovoltaic brackets. The middle row of flexible photovoltaic brackets does not need to be equipped with side columns 620. This can greatly reduce the production and installation costs of flexible photovoltaic systems and improve installation efficiency.

[0056] In other embodiments, each row of flexible photovoltaic support includes two crossbeams 610 and two side columns 620. The two crossbeams 610 are located at the upper ends of the two side columns 620 of each row of flexible photovoltaic support and are arranged in a one-to-one correspondence with the side columns 620. The crossbeams 610 on the same side of adjacent rows of flexible photovoltaic support are spaced apart.

[0057] Furthermore, it should be noted that in this embodiment, each set of load-bearing cable components 100 may also include three or more load-bearing cables 110, that is, a photovoltaic module 10 can be supported by three or more load-bearing cables 110. This can also achieve the purpose of supporting the photovoltaic module 10, but it will increase the material cost and is not conducive to the promotion and application of the product. Therefore, preferably, each set of load-bearing cable components 100 is equipped with two load-bearing cables 110 to support the photovoltaic module 10. This can not only achieve stable support for the photovoltaic module 10, but also save material costs and facilitate the promotion and application of the product.

[0058] In this embodiment, the tensioned beam structure includes two support columns 200, which are spaced apart along a first direction. The two support columns 200 are respectively positioned outside the outermost load-bearing cable 110 along the first direction, ensuring that the support columns 200 do not occupy the space below the load-bearing cable 110. This allows for the expansion of the space below the load-bearing cable 110 if other projects (such as greenhouses) are to be installed as needed. The support columns 200 are lattice columns to fully utilize their strong bending resistance and improve the structural strength of the support columns 200. Specifically, in this embodiment, the support column 200 includes two first support columns 201 arranged opposite to each other and a second support column 202 connecting the two first support columns 201. The two ends of the second support column 202 are fixedly connected to the two first support columns 201 by riveting, welding or bolting. One end of the tension beam 300 is set on the second support column 202 and fixedly connected to the second support column 202 by bolts. A reinforcing pad is also provided between the second support column 202 and the tension beam 300. At the same time, a stiffening plate is provided below the corresponding part of the connection between the second support column 202 and the tension beam 300. The stiffening plate and the reinforcing pad together increase the support strength of the second support column 202. Below the second support column 202, one or more third support columns 203 are provided. In this embodiment, there are two third support columns 203, which are arranged parallel to each other below the second support column 202. The two ends of each third support column 203 are fixedly connected to the two first support columns 201, further improving the support strength of the support columns 200 and ensuring the stability of the tensioned beam structure. It should be noted that in other embodiments, when the flexible photovoltaic system includes a large number of flexible supports, the number of support columns 200 can be three or more. These three or more support columns 200 are arranged sequentially at intervals along the extension direction of the tensioned beam 300, i.e., the first direction. By further providing one or more support columns 200 between the support columns 200 at both ends, the support capacity of the tensioned beam 300 is improved, thereby enhancing the strength and stability of the flexible photovoltaic system. Furthermore, by coordinating the support column 200 and the tension beam 300, the number of intermediate columns required in existing technologies can be eliminated or reduced while ensuring structural stability. This not only reduces production costs but also provides a reliable solution for areas and projects where intermediate columns cannot be installed due to installation environment limitations.

[0059] Please refer to Figures 1 to 6One end of the tensioned beam 300 is fixed to a support column 200, and the other end is fixed to another support column 200. The support columns 200 support the tensioned beam 300. The tensioned beam 300 is located in the middle of the load-bearing cables 110 and runs through multiple rows of flexible photovoltaic supports to support the middle of all the load-bearing cables 110. In addition, a diagonal brace 210 is added between the tensioned beam 300 and the support column 200 to improve overall stability. Specifically, one end of the diagonal brace 210 is fixed to the support column 200 by bolts, and the other end is fixed to the tensioned beam 300 by bolts. Ear plates fixed to the diagonal brace 210 are provided on both the support column 200 and the tensioned beam 300. One end of the diagonal brace 210 is fixedly connected to the ear plate on the support column 200 by bolts, and the other end of the diagonal brace 210 is fixedly connected to the ear plate on the tensioned beam 300 by bolts. In this embodiment, two diagonal braces 210 are provided at each end of the tensioned beam 300. One end of each diagonal brace 210 is connected to the two first support columns 201 of the support column 200, and the other end is fixedly connected to the tensioned beam 300. The diagonal braces 210 further enhance the strength of the tensioned beam structure and improve its stability and wind resistance.

[0060] Please refer to Figures 3 to 9 The tension beam 300 is provided with multiple limiting ring assemblies and multiple protruding columns 330 at intervals along the first direction. The multiple limiting ring assemblies and multiple protruding columns 330 are arranged alternately in sequence. One limiting ring assembly and the adjacent protruding column 330 correspond to a row of flexible photovoltaic supports. The two load-bearing cables 110 of each flexible photovoltaic support pass through the limiting ring assembly and the protruding column 330 adjacent to the limiting ring assembly, respectively. The limiting ring assembly and the protruding column 330 limit the two load-bearing cables 110 of a row of flexible photovoltaic supports. At the same time, the tension beam 300 can support the middle part of the load-bearing cables 110.

[0061] The protruding post 330 is provided with one or more limiting portions 331 for the load-bearing cable 110 to pass through. The protruding post 330 and the limiting ring assembly are arranged alternately along a first direction, and one protruding post 330 and one limiting ring assembly are correspondingly arranged with one load-bearing cable assembly 100. In this embodiment, each limiting ring assembly includes two limiting rings 310 arranged along a second direction. The arrangement of two limiting rings 310 increases the support area of ​​the limiting ring assembly and the load-bearing cable 110, thereby improving the support stability of the load-bearing cable 110.

[0062] In this embodiment, the protruding column 330 can be fixed to the tension beam 300 by means of bolt connection, riveting or welding. The limiting part 331 on the protruding column 330 can have the same structure as the limiting ring 310. For example, both the limiting part 331 and the limiting ring 310 can be eye bolts. The eye bolts are fixed to the protruding column 330 and the tension beam 300 by means of bolt connection, riveting or welding respectively. The load-bearing cable 110 passes through the annular structure of the eye bolt and is limited within the annular structure.

[0063] In this embodiment, a protruding post 330 and a limiting ring assembly correspond to a set of load-bearing cable assemblies 100. Each limiting ring assembly includes one or more limiting rings 310, and the multiple limiting rings 310 in each set of limiting ring assemblies are spaced apart along a second direction. For example, if the two load-bearing cables 110 in a set of load-bearing cable assemblies 100 are a first load-bearing cable 111 and a second load-bearing cable 112, then the first load-bearing cable 111 passes through the limiting portion 331 on the protruding post 330, and the second load-bearing cable 112 passes through a limiting ring assembly. That is, the number of protruding posts 330 is the same as the number of load-bearing cable assemblies 100, and the number of sets of limiting ring assemblies is also the same as the number of load-bearing cable assemblies 100. In other words, the number of protruding posts 330 is the same as the number of first load-bearing cables 111 in the flexible photovoltaic system, and the number of limiting ring assemblies is the same as the number of second load-bearing cables 112 in the flexible photovoltaic system.

[0064] The protruding column 330 protrudes from the tension beam 300, and the height of the protruding column 330 is higher than the height of the tension beam 300. The first load-bearing cable 111 passes through the limiting part 331 on the protruding column 330, which can raise the height of the first load-bearing cable 111. That is, the height of the first load-bearing cable 111 is higher than the second load-bearing cable 112. The plane formed by the first load-bearing cable 111 and the second load-bearing cable 112 is at a certain angle to the horizontal plane. When the photovoltaic module 10 is installed on the first load-bearing cable 111 and the second load-bearing cable 112, the photovoltaic module 10 is at a certain angle to the horizontal plane, so that the photovoltaic module 10 can obtain more solar energy, thereby increasing the power generation.

[0065] In this embodiment, the tension beam 300 can be made of H-beams or square tubing. H-beams are characterized by high strength, good stability, and strong load-bearing capacity, and are often used as main beams and longitudinal supports in large building structures. Furthermore, due to their shape resembling the letter "H," H-beams can effectively distribute the load at the bottom, improving structural stability and lifespan. However, H-beams are relatively expensive. Square tubing, on the other hand, has advantages such as simple structure, smooth surface, ease of processing, and low cost. It is often used as beams and lateral supports in small building structures. Compared to H-beams, square tubing has a relatively lower load-bearing capacity; however, in certain situations, using square tubing can effectively reduce costs and improve construction efficiency. Therefore, when the length of the tension beam 300 is short, rectangular square tubing can be used; when the length of the tension beam 300 is long, H-beams are preferred. In addition, because it is inconvenient to weld other components onto round tubes, and C-shaped steel is a thin-walled steel with low stiffness, asymmetry on both sides, and poor structural stability, round tubes or C-shaped steel are not used as much as possible for the tension beam 300 in this embodiment. However, in some special projects, if the requirements for the tension beam 300 are not high, round tubes or C-shaped steel can also be used for the tension beam 300.

[0066] The tension cable 400 is disposed below the tension beam 300, with one end of the tension cable 400 fixedly connected to one end of the tension beam 300, and the other end of the tension cable 400 fixedly connected to the other end of the tension beam 300. At least one support component 500 is disposed below the tension beam 300, connecting the tension beam 300 and the tension cable 400. In this embodiment, multiple support components 500 are used to further improve the stability of the connection between the tension beam 300 and the tension cable 400. Multiple support components 500 are fixedly disposed at intervals below the tension beam 300 along a first direction, with the upper end of each support component 500 connected to the load-bearing cable 110 and the lower end of each support component 500 abutting against the tension cable 400 to tension the tension cable 400.

[0067] In this embodiment, the support component 500 connects the tension beam 300, the load-bearing cable 110, and the tension cable 400, forming a spatial structure that stably supports the load-bearing cable 110 and improves the overall stability of the flexible photovoltaic support. The tension cable 400 is tensioned by the support component 500 and can form a downward arch structure to resist wind. There can be one or more tension cables 400. Preferably, in this embodiment, there are two tension cables 400, both of which are perpendicular to the load-bearing cable 110 and located on both sides below the tension beam 300 to improve wind resistance and thus enhance structural stability.

[0068] In this embodiment, a stable spatial structure can be formed by the interconnection of the tension beam 300, tension cable 400 and support component 500 to stably support the load-bearing cable 110. While ensuring structural stability, the original intermediate column setting is eliminated, which not only reduces production costs, but also provides a reliable solution for some areas and projects where intermediate columns cannot be installed.

[0069] In some embodiments, such as Figure 6 and Figure 7 As shown, the support assembly 500 includes a first support rod 510 and a second support rod 520. The upper end of the first support rod 510 is fixedly connected to the tension beam 300, and the lower end of the first support rod 510 is fixedly connected to the second support rod 520. The second support rod 520 is fixedly connected to the lower end of the first support rod 510, and both ends of the second support rod 520 are respectively connected to the tension cable 400, thereby tensioning the tension cable 400. The second support rod 520 extends along a second direction.

[0070] Furthermore, such as Figure 7 As shown, a reinforcing plate 320 is provided at the connection point between the tension beam 300 and the first support rod 510; and / or, a reinforcing rib 511 is provided on the side wall of the end where the first support rod 510 connects to the tension beam 300. Specifically, the tension beam 300 and the first support rod 510 can be fixedly connected by bolts or welding. A reinforcing plate 320 is provided at the connection point between the tension beam 300 and the first support rod 510. Specifically, the tension beam 300 is an H-beam, and a fixing plate 512 is provided at the top of the upper end of the first support rod 510. The fixing plate 512 is fixedly connected to the bottom of the tension beam 300. The reinforcing plates 320 are provided on both sides above the connection point between the tension beam 300 and the fixing plate 512 of the first support rod 510, which can increase the structural strength of the connection point. Similarly, reinforcing ribs 511 are also evenly distributed circumferentially below the fixing plate 512 of the first support rod 510 to further increase the strength and ensure the stability of the structure.

[0071] The lower end of the first support rod 510 is provided with a second support rod 520. In this embodiment, the first support rod 510 and the second support rod 520 are preferably round tubes, as round tubes have a stronger axial compressive strength. In addition to round tubes, the first support rod 510 and the second support rod 520 can also be square tubes or H-beams.

[0072] A slot 521 is provided at the bottom of the second support rod 520, and the tension cable 400 is disposed in the slot 521. When there are two or more tension cables 400, multiple slots 521 are also provided at intervals along the second direction on the second support rod 520, with each tension cable 400 disposed in one slot 521. The slots 521 can limit the tension cable 400 to ensure that the tension cable 400 is tensioned and to prevent the tension cable 400 from moving on the second support rod 520. In this embodiment, there are two tension cables 400, which are respectively disposed below both ends of the second support rod 520, and slots 521 for engaging the corresponding tension cables 400 are provided at both ends of the second support rod 520.

[0073] In some embodiments, third support rods 530 are provided at both ends of the second support rod 520. One end of the third support rod 530 is connected to the second support rod 520, and the other end is connected to the load-bearing cable 110 to connect the load-bearing cable 110 and the tension cable 400. Figure 6 and Figure 7 As shown, there are four third support rods 530. Two third support rods 530 are fixedly connected to one end of the second support rod 520 and arranged in a V-shape. The other two third support rods 530 are fixedly connected to the other end of the second support rod 520 and arranged in a V-shape. The four third support rods 530 can be symmetrically arranged on both sides of the tension beam 300 to enhance the out-of-plane stability of the steel beam. The upper ends of the four third support rods 530 are respectively connected to the corresponding load-bearing cables 110. In this embodiment, as... Figure 7 As shown, a first connecting plate 540 can be installed at one end of the second support rod 520, and a second connecting plate can be installed at the other end of the second support rod 520. Two third support rods 530 are fixedly connected to the first connecting plate 540, and two other third support rods 530 are fixedly connected to the second connecting plate. The first connecting plate 540 and the second connecting plate are fixedly connected to the third support rods 530 by welding. At both ends of the first connecting plate 540 and the second connecting plate, there are bent portions that connect to the corresponding third support rods 530. The third support rods 530 are fixedly connected to the bent portions by welding, riveting, or bolting. Thus, the first connecting plate 540 and the second connecting plate achieve a fixed connection between the third support rods 530 and the second support rods 520, so that the tension beam 300, the first support rod 510, the second support rod 520, the third support rod 530, and the tension cable 400 form a spatial structure, which improves the stability of the flexible photovoltaic system.

[0074] In one example, four third struts 530 support one load-bearing cable 110 in each of two adjacent sets of load-bearing cable assemblies 100 to increase the stability of the entire flexible photovoltaic system. Exemplarily, the first load-bearing cable 111, the second load-bearing cable 112, the third load-bearing cable 113, and the fourth load-bearing cable are arranged adjacent to each other along a first direction. The first load-bearing cable 111 and the second load-bearing cable 112 are two load-bearing cables 110 in one set of load-bearing cable assemblies 100, and the third load-bearing cable 113 and the fourth load-bearing cable are two load-bearing cables 110 in another adjacent set of load-bearing cable assemblies 100. Two of the four third struts 530 support the second load-bearing cable 112, and the other two third struts 530 support the third load-bearing cable 113.

[0075] In another example, four third struts 530 can support two load-bearing cables 110 of the same set of load-bearing cable assemblies 100 to increase the stability of a single-row flexible photovoltaic support. For example, the two load-bearing cables 110 of each set of load-bearing cable assemblies 100 are a first load-bearing cable 111 and a second load-bearing cable 112, with two third struts 530 supporting the first load-bearing cable 111 and the other two third struts 530 supporting the second load-bearing cable 112.

[0076] In some embodiments, the third support rod 530 is slidably connected to the load-bearing cable 110, and the third support rod 530 is provided with a limiting structure that allows the load-bearing cable 110 to pass through, such as... Figure 8As shown, for example, each third strut 530 is an angle steel rod. A U-bolt 531, allowing the load-bearing cable 110 to pass through, is provided on the upper side wall of the third strut 530. The two legs of the U-bolt 531 pass through the side wall of the third strut 530 and are secured with nuts. The load-bearing cable 110 passes through the corresponding U-bolt 531 on the third strut 530, and is confined within the U-shaped groove of the U-bolt 531. The bolt 531 can slide relative to the third support rod 530. The U-bolt 531 on the third support rod 530 is at the same height as the corresponding limiting ring 310 or the limiting part 331 on the protruding column 330 on the tension beam 300. This ensures that the load-bearing cable 110 passing through the U-bolt 531 and the limiting ring 310 or passing through the U-bolt 531 and the limiting part 331 remains horizontal, reducing the bending deformation of the load-bearing cable 110. The setting of the third support rod 530 increases the upward support force on the load-bearing cables 110 on both sides of the tension beam 300 and close to the tension beam 300, reducing the friction between the load-bearing cable 110 and the tension beam 300 caused by the downward bending deformation of the load-bearing cable 110 due to the weight of the photovoltaic module 10 above. The third support rod 530 is symmetrically set on both sides of the tension beam 300, ensuring the balance of force on the load-bearing cable 110, thereby further improving the stability of the flexible photovoltaic system. Furthermore, the sliding arrangement of the load-bearing cable 110 relative to the third support rod 530 in this embodiment allows the load-bearing cable 110 to undergo a certain displacement when affected by external factors such as strong winds, preventing breakage caused by the load-bearing cable 110 being unable to move, thereby improving the service life of the load-bearing cable 110. At the same time, the third support rod 530 provides support and limits the load-bearing cable 110, enhancing structural stability. In addition, when the load-bearing cable 110 passes through the limiting ring 310 above the tension beam 300 and the limiting part 331 on the protruding column 330, under the action of external factors, the load-bearing cable 110 will interact with the limiting ring 310. Friction occurs between the load-bearing cable 110 and the limiting portion 331 on the protruding column 330. By adding four third support rods 530 to the outside of the tension beam 300, the load-bearing cable 110 slides relative to the four third support rods 530. While providing support for the load-bearing cable 110, this further restricts the range of motion of the load-bearing cable 110, reducing friction between the load-bearing cable 110 and the limiting ring 310 above the tension beam 300, and between the load-bearing cable 110 and the limiting portion 331 on the protruding column 330. This reduces wear on the load-bearing cable 110 and increases its service life. In other embodiments, the U-bolt 531 can be replaced with a lifting eye bolt structure, which is fixed to the third support rod 530, and the load-bearing cable 110 is limited within the lifting eye of the lifting eye bolt. In yet another embodiment, the U-bolt 531 can also be replaced with a semi-circular structure, which is directly welded to the third support rod 530. Similarly, the third strut 530 can also be a square or round tube structure, achieving the same technical effect, which will not be elaborated here.

[0077] In some embodiments, such as Figure 9 As shown, the flexible photovoltaic system also includes multiple conical connecting frames 120, and the load-bearing cable assembly 100 also includes a stabilizing cable 140, which is located below the load-bearing cable 110. Each flexible photovoltaic support includes an upper load-bearing cable 110 and a lower stabilizing cable 140. Each flexible photovoltaic support has multiple conical connecting frames 120 spaced apart along a second direction. The conical connecting frames 120 connect the upper load-bearing cable 110 and the lower stabilizing cable 140, thereby increasing the stability and wind resistance of the flexible photovoltaic support. The conical connecting frames 120 on adjacent rows of flexible photovoltaic supports are correspondingly arranged in the first direction. The conical connecting frame 120 includes multiple connecting rods 130, which are interconnected to form a conical structure. The conical connecting frame 120 has at least four vertices, and each load-bearing cable 110 and stabilizing cable 140 is connected to at least one vertex. The number of vertices connected to the load-bearing cable 110 is not less than the number of vertices connected to the stabilizing cable 140.

[0078] Specifically, the conical connecting frame 120 is a triangular pyramid, a square pyramid, a pentagonal pyramid, or other polygonal pyramid structure. In this embodiment, the conical connecting frame 120 is a triangular pyramid structure. The conical connecting frame 120 includes a first vertex 121, a second vertex 122, a third vertex 123, and a fourth vertex 124. The first vertex 121, the second vertex 122, and the third vertex 123 are coplanar. The first vertex 121 is connected to a load-bearing cable 110, the second vertex 122 and the third vertex 123 are respectively connected to another load-bearing cable 110, and the fourth vertex 124 is located below the load-bearing cable 110 and is connected to the stabilizing cable 140. The conical connecting frame 120 includes six connecting rods 130. These six connecting rods 130 are interconnected by fasteners such as eye bolts to form a triangular pyramid structure. The interconnected rods 130 form four vertices: a first vertex 121, a second vertex 122, a third vertex 123, and a fourth vertex 124. Vertices 121, 122, and 123 lie on a single plane, while vertex 124 lies below the plane formed by vertices 121, 122, and 123. Assuming each load-bearing cable assembly 100 includes a first load-bearing cable 111 and a second load-bearing cable 112, the first vertex 121 is fixedly or slidably connected to the first load-bearing cable 111, and the second and third vertices 122 and 123 are fixedly or slidably connected to the second load-bearing cable 112, respectively. Further, as... Figure 9As shown, the system also includes multiple inter-row connection components 700. Each inter-row connection component 700 is disposed between two adjacent conical connecting frames 120 arranged along a first direction. Each inter-row connection component 700 includes a first connecting rod 710 and a second connecting rod 720. One end of the first connecting rod 710 and one end of the second connecting rod 720 are respectively connected to the fourth vertex 124 of one conical connecting frame 120. The other end of the first connecting rod 710 is connected to the second vertex 122 of the corresponding adjacent conical connecting frame 120, and the other end of the second connecting rod 720 is connected to the third vertex 123 of the other conical connecting frame 120. By setting the inter-row connection components 700 between two adjacent conical connecting frames 120, the stability between the multiple rows of load-bearing cable assemblies 100 can be improved, further enhancing the wind resistance of the flexible photovoltaic system.

[0079] For further information, please refer to the following: Figure 9 As shown, the inter-row connection assembly 700 also includes a third link 740. The two ends of the third link 740 are respectively connected to the corresponding conical connecting frames 120 of the adjacent rows of flexible photovoltaic supports. One end of the third link 740 is connected to the load-bearing cable 110 of a flexible photovoltaic support, and the other end of the third link 740 is connected to the stabilizing cable 140 of another adjacent flexible photovoltaic support. There is one third link 740 between the corresponding conical connecting frames 120 of the adjacent rows. One end of the third link 740 is connected to the first vertex 121 of one of the conical connecting frames 120, and the other end of the third link 740 is connected to the fourth vertex 124 of the adjacent row of conical connecting frames 120. The third link 740 is located between the first link 710 and the second link 720.

[0080] The inter-row connection assembly 700 also includes a wind-resistant cable 750. The wind-resistant cable 750 extends along the first direction and sequentially connects to the fourth apex 124 of the corresponding conical connecting frames 120 of the multiple rows of flexible photovoltaic supports. Specifically, the wind-resistant cable 750 sequentially passes through the hanging rings at the fourth apex 124 of the corresponding conical connecting frames 120 of the multiple rows of flexible photovoltaic supports, and both ends of the wind-resistant cable 750 are fixed to the hanging rings at the fourth apex 124 of the conical connecting frames 120 of the first and last rows of photovoltaic supports. In this embodiment, the ends of the wind-resistant cable 750 are folded and fixed after passing through the hanging rings. By connecting two adjacent conical connecting frames 120 along the first direction into a whole, and then sequentially connecting multiple conical connecting frames 120 to each other, they can jointly resist wind force and improve the wind resistance of the entire flexible photovoltaic array in the second direction.

[0081] Furthermore, such as Figure 1 and Figure 2As shown, the row-to-row connection assembly 700 also includes multiple cable assemblies 730. The cable assemblies 730 are located at the conical connecting frames 120 of the first and last rows of flexible photovoltaic supports in the flexible photovoltaic system. Each cable assembly 730 includes a first cable assembly and a second cable assembly. One end of both the first and second cable assemblies is connected to the same conical connecting frame 120, and the other ends are respectively connected to a fixed point. The first and second cable assemblies are symmetrically arranged relative to the conical connecting frame 120, and are arranged in an inverted V-shape in the vertical direction. That is, the distance between the ends of the first and second cable assemblies connected to the conical connecting frame 120 is less than the distance between the other ends of the first and second cable assemblies connected to the fixed points. In this embodiment, the fixed point is a pile foundation located on the ground; in other embodiments, the fixed point can also be the ground. With this configuration, the conical connecting frame 120, the first connecting rod 710, the second connecting rod 720, the third connecting rod 740, and the wind-resistant cable 750 are indirectly connected and fixed to the ground along the first direction, and the first cable assembly and the second cable assembly form a stable triangular structure with the ground, further improving the wind resistance of the entire flexible photovoltaic system in the first direction.

[0082] Specifically, please refer to Figure 1 , Figure 2 , Figure 10 and Figure 11 As shown, in this embodiment, the first cable assembly includes two first cables 731, and the second cable assembly includes two second cables 732. The upper ends of the two first cables 731 are respectively connected to the second vertex 122 and the fourth vertex 124 of the conical connecting frame 120, and the lower ends of the two first cables 731 are connected to the same fixed point. The two first cables 731 are arranged in a V-shape in the vertical direction. The upper ends of the two second cables 732 are respectively connected to the third vertex 123 and the fourth vertex 124 of the conical connecting frame 120, and the lower ends of the two second cables 732 are connected to the same fixed point. The two second cables 732 are arranged in a V-shape in the vertical direction. Thus, the first cable assembly and the second cable assembly are symmetrically arranged, and a stable triangular structure is formed between the two first cables 731 and the conical connecting frame 120. A stable triangular structure is also formed between the two second cables 732 and the conical connecting frame 120. The upper and lower ends of the conical connecting frame 120 are connected to the ground, which can resist strong winds and provide effective support for the conical connecting frame 120 and the photovoltaic module 10, thereby enhancing the stability and wind resistance of the flexible photovoltaic array.

[0083] In other embodiments, the distance between one end of the first cable 731 and the second cable 732 connected to the conical connecting frame 120 is greater than the distance between the other ends of the first cable 731 and the second cable 732 connected to the fixing point. Furthermore, the other ends of the first cable 731 and the second cable 732 are connected to the same fixing point. Thus, the first cable 731 and the second cable 732 are arranged in a V-shape, forming a stable triangular structure with the conical connecting frame 120, which also improves the stability and wind resistance of the flexible photovoltaic array. It should be noted that the fixing point mentioned above can be a pile foundation located on the ground, or it can be the ground itself. That is, the first cable assembly and the second cable assembly can be fixed to different pile foundations, or they can be directly fixed to different positions on the ground using connectors such as eye bolts.

[0084] The flexible photovoltaic system in this embodiment connects multiple rows of flexible photovoltaic supports into a whole through a tensioned beam structure, which reduces the deformation of the load-bearing cables and the damage to the photovoltaic modules on the load-bearing cables under the influence of strong external winds, greatly improving the stability and wind resistance of the flexible photovoltaic system. In addition, by replacing the original central beam + central column structure with a self-balancing system of tensioned beam structure, not only can the number of intermediate columns be greatly reduced, reducing the overall project cost and construction cost, but it also provides a reliable solution for some areas and projects where it is impossible to install central columns.

[0085] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0086] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A tensioned beam structure for connecting multiple rows of flexible photovoltaic supports spaced apart along a first direction, the flexible photovoltaic supports including a load-bearing cable assembly, the load-bearing cable assembly including load-bearing cables extending along a second direction, the first direction being perpendicular to the second direction, characterized in that, include: At least two support columns are spaced apart along the first direction; A tension beam is fixedly installed on the top of at least two of the support columns; The tension cable is located below the tension beam, with one end fixedly connected to one end of the tension beam and the other end fixedly connected to the other end of the tension beam. At least one support component is fixedly disposed on the tensioned beam, the upper end of the support component is used to connect with the load-bearing cable, and the lower end of the support component is used to abut against the tensioned cable; The support assembly includes a first support rod, a second support rod, and a third support rod. The upper end of the first support rod is fixedly connected to the tension beam, and the lower end of the second support rod is fixedly connected to the first support rod. The second support rod extends along the second direction. The lower end of the third support rod is fixedly connected to the second support rod, and the upper end of the third support rod is used to connect to the load-bearing cable assembly of the flexible photovoltaic bracket; there are four third support rods, two of which are fixedly connected to one end of the second support rod and arranged in a V-shape, and the other two are fixedly connected to the other end of the second support rod and arranged in a V-shape; the upper ends of the four third support rods are respectively connected to the corresponding load-bearing cables; the four third support rods are arranged close to the tension beam and symmetrically on both sides of the tension beam.

2. The tensioned beam structure according to claim 1, characterized in that, The four third struts are used to connect the load-bearing cables of two adjacent sets of load-bearing cable assemblies; or, the four third struts are used to connect the load-bearing cables of the same set of load-bearing cable assemblies.

3. A tensioned beam structure according to claim 1, characterized in that, The third support rod is an angle steel, square tube, or round tube structure, and a limiting structure is provided on the third support rod to allow the load-bearing cable to pass through. The third support rod is slidably connected to the load-bearing cable through the limiting structure.

4. A tensioned beam structure according to claim 3, characterized in that, The limiting structure is a U-bolt, a lifting eye bolt, or a semi-circular structure.

5. A tensioned beam structure according to claim 1, characterized in that, A reinforcing plate is provided at the connection point between the tension beam and the first strut; and / or; The first strut has a reinforcing rib on the side wall at the end where it connects to the tensioned beam; and / or; The second support rod is provided with a slot, and the tension cable is disposed in the slot.

6. A tensioned beam structure according to any one of claims 1-5, characterized in that, The tensioned beam is provided with a plurality of protruding columns and limiting ring assemblies spaced apart along the first direction. The protruding columns are provided with limiting portions for the load-bearing cables to pass through. The protruding columns and the limiting ring assemblies are arranged alternately along the first direction, and one protruding column and one limiting ring assembly are correspondingly arranged with one load-bearing cable assembly. Each limiting ring assembly includes one or more limiting rings arranged along the second direction.

7. A tensioned beam structure according to claim 1, characterized in that, The supporting column is a lattice column, and a diagonal brace is provided between the supporting column and the tension beam. One end of the diagonal brace is fixedly connected to the tension beam, and the other end is fixedly connected to the supporting column.

8. A flexible photovoltaic system, characterized in that, It includes a multi-row flexible photovoltaic support structure and a tensioned beam structure as described in any one of claims 1 to 7, wherein the multi-row flexible photovoltaic support structure is spaced apart along a first direction, and the tensioned beam structure connects the multi-row flexible photovoltaic support structure.

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