Flexible photovoltaic support

Abstract

Provided in the embodiments of the description is a flexible photovoltaic support, comprising: a main cable load-bearing module, a wind-resistant module and a component mounting module. The main cable load-bearing module comprises a plurality of main cable units, and the main cable load-bearing module is mainly used for bearing a photovoltaic panel. The wind-resistant module is arranged between the plurality of main cable units and is used for stabilizing the main cable load-bearing module. The component mounting module is connected to the main cable load-bearing module and is used for anchoring the main cable units.

Description

A flexible photovoltaic bracket Technical Field

[0001] This specification relates to the field of photovoltaic modules, and in particular to a flexible photovoltaic bracket. Background Art

[0002] Photovoltaic power generation utilizes photovoltaic modules to convert solar energy, a renewable energy source, into electricity, providing benefits for human life and production. However, photovoltaic modules require extremely high stability and require support and / or tracking brackets for stable and continuous operation. To maintain the stability of photovoltaic modules, currently used fixed brackets and / or tracking brackets are rigid structures with small spans. These rigid fixed brackets and / or tracking brackets also have limited adaptability to terrain and are expensive, hindering the application of photovoltaic power generation.

[0003] With the rapid development of photovoltaic power generation, photovoltaic power generation projects are being developed and constructed in areas such as large-span ponds, mountainous areas with complex geological conditions, and above sewage collection tanks. These projects utilize long-span flexible photovoltaic support technology. Flexible photovoltaic support features prestressed steel strands (cables) tensioned between two supports. The photovoltaic panels are secured to the cables, and the supports are fixed to a rigid foundation. This diagonal bracing maintains stability and allows for a wide range of spans.

[0004] However, in practical applications, flexible supports are sensitive to wind vibration, which has a significant impact. Reducing the wind load on photovoltaic supports, ensuring the safe and reliable operation of photovoltaic panels, and improving the stability of flexible supports are urgent challenges. This invention aims to further address the problems of flexible supports in these applications.

[0005] Summary of the Invention

[0006] An embodiment of the present specification provides a flexible photovoltaic bracket, including a main cable load-bearing module, a wind-resistant module and a component installation module; the main cable load-bearing module includes several main cable units for carrying photovoltaic panels; the wind-resistant module is arranged between several main cable units for stabilizing the main cable load-bearing module; the component installation module is connected to the main cable load-bearing module for anchoring the main cable load-bearing module.

[0007] In some embodiments, each of the main cable units includes a first main cable and a second main cable; the wind-resistant module includes multiple rows of tie rod assemblies; the multiple rows of tie rod assemblies are spaced apart along the extension direction of the main cable unit, and the multiple rows of tie rod assemblies are perpendicular to the main cable unit.

[0008] In some embodiments, the wind-resistant module includes multiple rows of tie rod assemblies; the multiple rows of tie rod assemblies include a first row of tie rod assemblies, a middle row of tie rod assemblies and a tail row of tie rod assemblies; the tie rods in the first row of tie rod assemblies and the tail row of tie rod assemblies are rigid rods, and the tie rods in the middle row of tie rod assemblies are flexible rods.

[0009] In some embodiments, the tie rods of the first two rows of tie rod assemblies and the last two rows of tie rod assemblies in the multiple rows of tie rod assemblies are rigid rods; and the tie rods of the middle rows of tie rod assemblies except the first two rows of tie rod assemblies and the last two rows of tie rod assemblies are flexible rods.

[0010] In some embodiments, each column of the pull rod assembly includes a plurality of pull rod units; the pull rod units are arranged between two adjacent main cable units.

[0011] In some embodiments, the two adjacent main cable units include a first main cable unit and a second main cable unit; the pull rod unit includes: an upper cross bar, arranged between the first main cable in the first main cable unit and the first main cable in the second main cable unit; a middle chord bar, arranged between the first main cable and the second main cable in the first main cable unit; a lower cross bar, arranged between the second main cable in the first main cable unit and the second main cable in the second main cable unit; and a middle diagonal bar, arranged between the second main cable in the first main cable unit and the first main cable in the second main cable unit, or, arranged between the first main cable in the first main cable unit and the second main cable in the second main cable unit.

[0012] In some embodiments, two adjacent main cable units include a first main cable unit and a second main cable unit; the pull rod unit includes: a first pull rod, arranged between the first main cable and the second main cable in the first main cable unit; a second pull rod, arranged between the second main cable in the first main cable unit and the first main cable in the second main cable unit; a third pull rod, arranged between the first main cable in the first main cable unit and the second main cable in the second main cable unit; and a fourth pull rod, arranged between the first main cable in the first main cable unit and the first main cable in the second main cable unit, or, arranged between the second main cable in the first main cable unit and the second main cable in the second main cable unit.

[0013] In some embodiments, each of the main cable units further includes a stabilizing cable; the pull rod assembly includes a plurality of pull rod units; and the pull rod unit is disposed between two adjacent main cable units.

[0014] In some embodiments, the tie rod unit includes a first tie rod sub-unit; the vertices of the first tie rod sub-unit are respectively located on the first main cable, the second main cable of the first main cable unit, and the second main cable of the second main cable unit, forming a triangular structure.

[0015] In some embodiments, the first pull rod sub-unit includes a first sub-pull rod, a second sub-pull rod and a third sub-pull rod; wherein, the first sub-pull rod is arranged between the first main cable and the second main cable in the first main cable unit; the second sub-pull rod is arranged between the first main cable in the first main cable unit and the second main cable in the second main cable unit; the third sub-pull rod is arranged between the second main cable in the first main cable unit and the second main cable in the second main cable unit; the first sub-pull rod, the second sub-pull rod and the third sub-pull rod are connected end to end to form a triangular structure.

[0016] In some embodiments, the tie rod unit further includes a second tie rod sub-unit; the vertices of the second tie rod sub-unit are respectively on the second main cable of the first main cable unit, the stabilizing cable and the second main cable of the second main cable unit, forming a triangular structure.

[0017] In some embodiments, the second pull rod sub-unit includes a fourth sub-pull rod and a fifth sub-pull rod; wherein, the fourth sub-pull rod is arranged between the second main cable and the stabilizing cable in the first main cable unit; the fifth sub-pull rod is arranged between the stabilizing cable in the first main cable unit and the second main cable in the second main cable unit; the third sub-pull rod, the fourth sub-pull rod and the fifth sub-pull rod are connected end to end to form a triangular structure.

[0018] In some embodiments, the second tension rod sub-unit further includes: the sixth sub-tension rod, which is arranged between the stabilizing cable in the first main cable unit and the stabilizing cable in the second main cable unit.

[0019] In some embodiments, both ends of the stabilizing cable are respectively fixed to the beam or the column.

[0020] In some embodiments, a stabilizing cable fixing rod is provided at the node between the stabilizing cable and the pull rod unit; the upper end of the stabilizing cable fixing rod is connected to the node, and the lower end is anchored to the ground.

[0021] In some embodiments, the stabilizing cable fixing rod includes a damper; and the lower end of the stabilizing cable fixing rod is fixed to the ground via the damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] This specification will be further described in the form of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, and in these embodiments, like numbers represent like structures, wherein:

[0023] FIG1 is a schematic diagram of a three-dimensional structure of a flexible photovoltaic support according to some embodiments of this specification;

[0024] FIG2 is a schematic diagram of a top view of a flexible photovoltaic support according to some embodiments of this specification;

[0025] FIG3 is an enlarged schematic diagram of point A in FIG1 ;

[0026] FIG4 is a schematic diagram of a three-dimensional structure of a flexible photovoltaic bracket according to some embodiments of this specification from another angle;

[0027] FIG5 is an enlarged schematic diagram of point B in FIG4 ;

[0028] FIG6A is a simulated schematic diagram of a tie rod unit according to some embodiments of this specification;

[0029] FIG6B is a simulated schematic diagram of another tie rod unit according to some embodiments of this specification;

[0030] FIG6C is a simulated schematic diagram of another tie rod unit according to some embodiments of this specification;

[0031] FIG6D is a simulated schematic diagram of yet another tie rod unit according to some embodiments of this specification;

[0032] FIG7 is a schematic diagram of a three-dimensional structure of a flexible photovoltaic bracket according to other embodiments of this specification;

[0033] FIG8 is an enlarged schematic diagram of point C in FIG7;

[0034] FIG9A is a schematic diagram of a simulated structure of a tie rod unit according to other embodiments of this specification;

[0035] FIG9B is a schematic diagram of a simulated structure of another tie rod unit according to other embodiments of this specification;

[0036] FIG10 is an enlarged schematic diagram of point D in FIG7;

[0037] FIG11 is a schematic diagram of a partial structure of a flexible photovoltaic support according to some embodiments of this specification;

[0038] FIG12A is a schematic diagram of a structural diagram of an oblique connection method of a flexible photovoltaic support according to some embodiments of this specification;

[0039] FIG12B is a schematic diagram of a structural diagram of an oblique connection method of a flexible photovoltaic support according to other embodiments of this specification;

[0040] FIG13 is a schematic diagram of the connection structure of the stabilizing fixing rod of the flexible photovoltaic support according to other embodiments of this specification.

[0041] In the figure: 100, main cable load-bearing module; 110, main cable unit; 110-1, first main cable; 110-2, second main cable; 111, first main cable unit; 1111, first main cable A; 1112, second main cable A; 1113, stabilizing cable A; 112, second main cable unit; 1121, first main cable B; 1122, second main cable B; 1123, stabilizing cable B; 200, wind resistance module; 210, tie rod assembly; 2101, first row tie rod assembly; 2102, middle row tie rod assembly; 2103, tail row tie rod assembly; 211, tie rod unit; 2111, upper cross bar; 2112, middle chord bar; 2113, lower cross bar; 2114, middle diagonal bar; 2115, first tie rod; 2116, second tie rod; 2117, third tie rod; 2118, fourth tie rod; 211-1, first A tie rod subunit; 211-11, a first sub-tie rod; 211-12, a second sub-tie rod; 211-13, a third sub-tie rod; 211-2, a second tie rod subunit; 211-21, a fourth sub-tie rod; 211-22, a fifth sub-tie rod; 211-23, a sixth sub-tie rod; 220, a node fixing member; 221, a first cable clamp; 2211, a first lug; 222, a second cable clamp; 2221, a second lug; 300, a component mounting module; 310, a crossbeam; 320, a column; 330, a cable-stayed structure; 331, a stress-adjustable device; 340, a stabilizing cable fixing rod; 350, a damper; 400, a photovoltaic panel. DETAILED DESCRIPTION

[0042] To more clearly illustrate the technical solutions of the embodiments of this specification, the following briefly describes the drawings required for describing the embodiments. Obviously, the drawings described below are merely examples or embodiments of this specification. Those skilled in the art can apply this specification to other similar scenarios based on these drawings without inventive effort. Unless otherwise apparent from the context or otherwise noted, the same reference numerals in the figures represent the same structure or operation.

[0043] It should be understood that the terms "system," "device," "unit," and / or "module" used herein are a method for distinguishing different components, elements, parts, portions, or assemblies at different levels. However, if other terms can achieve the same purpose, the terms may be replaced by other expressions.

[0044] As used in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not refer to the singular but also include the plural. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.

[0045] Although this application makes various references to certain components in the embodiment devices, any number of different components may be used in the embodiment devices. The components described are illustrative only. The device may include different components in different application scenarios or installation scenarios. Unless otherwise specified, the absence of a component or structure described in this specification does not indicate or imply that the device described in this specification does not include or contain the described component or structure.

[0046] The embodiments of the present application can be applied to fields other than photovoltaic power generation. It should be understood that the application scenarios of the device in this application are merely some examples or embodiments of the present application, and a person of ordinary skill in the art may apply the present application to other similar fields, such as the solar thermal field or other fixed devices involving components, without inventive effort.

[0047] It should be noted that the following description of the various embodiments of the photovoltaic power generation system is for convenience of description only and does not limit the present application to the scope of the embodiments cited. It should be understood that after understanding the principle of the device, a person of ordinary skill in the art can, without departing from this principle, arbitrarily combine the various components, or use them as components of other structures, or make various corrections and changes in form and details to the application field of the device. In addition, the drawings in this application are only a more intuitive visual description of each device or component and are merely illustrative. The structure, shape, number of substructures, type of substructures, etc. of each device or component in the drawings are only for the convenience of description and do not limit the actual structure, shape, number of substructures, type of substructures, etc. of each device or component. Unless otherwise emphasized in the relevant description, the structure that does not appear in the drawings does not indicate or imply that the device or component described does not include the structure.

[0048] In this application, unless otherwise specified, the term "component" may be used to describe a specific mechanical or functional structure, such as a beam, tie rod, photovoltaic panel, bracket, main cable, column, or a combination of the aforementioned mechanical and / or functional structures. In this application, unless otherwise specified, when two components are connected to each other, the connection method may include a connector connection method, an integrated connection method, or a combination of the aforementioned connection methods. The connector connection method refers to a connection method in which the components used for connection are independent structures after each is manufactured, and these independent structures are connected together via a connector. The connector is an independent connecting part that can be used to connect two or more components together. The connector can be a universal standard connector, such as a screw, bolt, threaded rod, nut, pressure block, rivet, anchor, etc. of universal specifications. The connector can also be a custom-made connector not available on the market, such as a screw or bolt of non-universal specifications, a snap, or a connecting block with a specific connection structure. The integrated connection method refers to a connection method in which the two components, after installation, are different functional areas of the same independent mechanical structure. For example, the mechanical structure to which the two components belong can be formed in one go using a custom mold during manufacturing. The two components may also be added to an independent mechanical structure by physically or chemically shaping the structure. The addition method may include punching, cutting, bending, polishing, hammering, etching, electroplating, or any combination thereof. The two components may also be connected together by welding or similar methods. In addition, the connector connection method and the integrated connection method may be applied simultaneously to the connection of the two components. For example, the characteristic structure of one of the two components may include a portion formed by physical shaping or a portion obtained by connecting using a connector.

[0049] In this specification, unless otherwise specified, the front of a photovoltaic panel refers to the surface on which the photosensitive surface of the photovoltaic panel is located, and the back of a photovoltaic panel refers to the surface opposite the front, typically the base plate. Surfaces other than the front or back of a photovoltaic panel are collectively referred to as side surfaces (including lateral and longitudinal sides). To achieve the optimal illumination angle, the photovoltaic panel needs to be tilted. Therefore, the two cables are arranged vertically, one high and one low, and the photovoltaic panel is fixedly connected to the two cables at a certain angle. When air at a certain speed blows over the photovoltaic panel, the photovoltaic panel will experience vertical displacement, torsion, and / or random vibration under the influence of wind. Due to the height difference between the two cables, each cable is connected to the back of the photovoltaic panel via multiple clips. When the wind load increases to a certain level, the different directions and magnitudes of the forces applied increase the tension on each clip, potentially causing the photovoltaic panel to tear due to the tension generated by the clips. The two cables are steel strands with a certain preload. The longitudinal stiffness of the two cables is relatively weak, and when the wind load increases to a certain level, the two cables are also at risk of damage. In this specification, the longitudinal direction refers to the Y-axis direction shown in FIG. 2 , and the transverse direction refers to the X-axis direction shown in FIG. 2 .

[0050] Figure 1 is a schematic diagram of the three-dimensional structure of a flexible photovoltaic bracket according to some embodiments of this specification; Figure 2 is a schematic diagram of the top view of the flexible photovoltaic bracket according to some embodiments of this specification; Figure 3 is an enlarged schematic diagram of point A in Figure 1.

[0051] This specification discloses a flexible photovoltaic support, see Figure 1, including a main cable load-bearing module 100, a wind-resistant module 200 and a component installation module 300. At least two component installation modules 300 are provided and are spaced apart in the horizontal direction (X direction in Figure 2). In specific practical applications, the horizontal direction can be north-south, east-west or other directions. Figure 1 shows a photovoltaic support with a span, including two component installation modules 300. The component installation module 300 is connected to the main cable load-bearing module 100, and is used to anchor the main cable load-bearing module 100 and support the main cable load-bearing module 100 and other upper mechanisms. Referring to Figures 1 and 2, a main cable load-bearing module 100 is connected between two adjacent component installation modules 300. The main cable load-bearing module 100 includes a plurality of main cable units 110, and the plurality of main cable units 110 are spaced apart in the longitudinal direction (Y direction in Figure 2). Each main cable unit 110 includes two cables, which can be flexible steel cables, which are parallel and fixedly connected at both ends to the two component installation modules 300. Two cables are used to support the photovoltaic panel 400. There is a certain distance between the two cables in the longitudinal direction and different heights in the vertical direction, so that the photovoltaic panel bearing base formed by the two cables has a certain angle relative to the horizontal plane. The wind-resistant module 200 is arranged between several main cable units 110 to stabilize the main cable load-bearing module 100. The wind-resistant module 200 includes multiple rows of tie rod assemblies 210. The row mentioned in this specification refers to the arrangement extending along the X direction shown in Figure 2, and the column refers to the arrangement extending along the Y direction shown in Figure 2. The multiple rows of tie rod assemblies 210 are spaced apart along the extension direction (i.e., the transverse direction) of the main cable unit 110, and the planes formed by the multiple rows of tie rod assemblies 210 are perpendicular to the main cable unit 110. Multiple main cable units 110 extend in the transverse direction and are spaced apart in the longitudinal direction, and the multiple rows of tie rod assemblies 210 extend in the longitudinal direction and are spaced apart in the transverse direction, thereby forming a rectangular mesh support structure. The multiple main cable units 110 are connected into a rectangular whole through multiple rows of tie rod assemblies 210, which makes the entire flexible photovoltaic support structure stable, strong in wind resistance, and long in service life. The flexible photovoltaic support has a simple structure, is more economical in cost, and has wind resistance and stability.

[0052] In some embodiments, the rod assembly 210 can be a planar structure formed by connecting multiple rods to form a stable structure. The multiple rods of the rod assembly 210 constrain deformation to achieve wind vibration resistance. For the specific structure of the rod assembly 210, see the following description.

[0053] In some embodiments, a complete flexible photovoltaic support may include a plurality of component installation modules 300 arranged at intervals along the lateral direction. The photovoltaic support between two adjacent component installation modules 300 is called a span, and the spacing between them can be set according to the actual span requirements to meet different span requirements. Figures 1 and 2 show one span in a flexible photovoltaic support, and two component installation modules 300 are arranged at the lateral ends of the main cable load-bearing module 100 according to the installation span requirements. In some embodiments, when the flexible photovoltaic support includes two spans, there are three component installation modules 300 arranged at intervals along the lateral direction. In some embodiments, when the flexible photovoltaic support includes three spans, there are four component installation modules 300 arranged at intervals along the lateral direction, and so on.

[0054] 1 and 3 , the assembly installation module 300 includes a beam 310 for installation support and several supporting columns 320. The ends of several main cable units 110 are fixedly mounted on the beam 310 and columns 320 via anchoring structures.

[0055] The crossbeam 310 extends in a longitudinal direction perpendicular to the extension direction of the flexible photovoltaic support, that is, the Y direction shown in Figure 2. In some embodiments, the crossbeam 310 can be made of I-beam.

[0056] A plurality of columns 320 are sequentially spaced along the length of the beam 310 , and each column 320 is vertically arranged (ie, in the direction of gravity), with its upper end fixedly connected to the beam 310 and its lower end buried in the ground.

[0057] In some embodiments, to accommodate complex terrain such as large-span ponds, geologically complex mountainous areas, and above sewage collection tanks, the lengths of the multiple columns 320 can be adjusted based on the actual terrain. During construction, the multiple columns 320 are first buried in the ground according to the specific requirements of the project, and then the crossbeam 310 is fixed to the multiple columns 320. The crossbeam 310 and the multiple columns 320 are perpendicular to each other, and the multiple crossbeams 310 should maintain a substantially consistent height.

[0058] In some embodiments, the crossbeam 310 and the plurality of columns 320 may be fixed by pre-buried bolts or by on-site welding. In some embodiments, the crossbeam 310 may also be welded to a steel column using an I-beam and then connected to the columns 320 to accommodate a certain slope.

[0059] In some embodiments, referring to FIG1 , the main cable load-bearing module 100 includes a plurality of main cable units 110, which are primarily used to support photovoltaic panels 400. The main cable units 110 extend transversely (in the X-axis direction in FIG2 ), with their ends secured to the component mounting modules 300 at their respective ends. Each main cable unit 110 extends transversely in a horizontal position. Multiple photovoltaic panels 400 are mounted on each main cable unit 110 at intervals along the transverse direction, forming a row of photovoltaic panels 400. The photovoltaic panels 400 on the entire flexible support form a rectangular matrix with multiple rows and columns.

[0060] In some embodiments, referring to FIG. 1 , each main cable unit 110 includes two cables, which may include a first main cable 110-1 and a second main cable 110-2. The first and second main cables 110-1, 110-2 serve as load-bearing cables supporting the photovoltaic panels 400 and may be flexible steel strands. In some embodiments, the first and second main cables 110-1, 110-2 may be 1x7-strand steel strands with a strength of approximately 1860 MPa. The first and second main cables 110-1, 110-2 are parallel to each other and arranged at different heights. The backside of the photovoltaic panel 400 is fixedly connected to the first and second main cables 110-1, 110-2. This arrangement creates a certain tilt angle, which allows the photovoltaic panel 400 mounted above the first and second main cables 110-1, 110-2 to be tilted at the same angle, allowing the photovoltaic panel 400 to face the light and improve light collection efficiency.

[0061] In some embodiments, the horizontal spacing and the vertical spacing between the first main cable 110 - 1 and the second main cable 110 - 2 can be calculated based on the size of the photovoltaic panel 400 and the required tilt angle of the photovoltaic panel 400 in actual conditions.

[0062] Generally speaking, if the photovoltaic panel 400 is arranged perpendicular to the sunlight, it can maximize the collection of solar energy. The photovoltaic panels 400 on the photovoltaic rack are all installed at a certain tilt angle. Therefore, the first main cable 110-1 and the second main cable 110-2 used to support the photovoltaic panel 400 need to be arranged at different heights. In this specification, for ease of distinction and understanding, the first main cable 110-1 refers to the vertically higher of the two cables in each main cable unit 110 used to support the photovoltaic panel 400. The second main cable 110-2 refers to the vertically lower of the two cables in each main cable unit 110 used to support the photovoltaic panel 400. In some embodiments, the first main cables 110-1 in multiple main cable units 110 are of the same vertical height, and the second main cables 110-2 in multiple main cable units 110 are of the same vertical height.

[0063] In some embodiments, both ends of the first and second main cables 110-1, 110-2 are secured to the corresponding ends of the crossbeam 310. In some embodiments, the first and second main cables 110-1, 110-2 can be attached to the inner side of the crossbeam 310 facing the cables. In some embodiments, the first and second main cables 110-1, 110-2 can also be secured to the outer side of the crossbeam 310.

[0064] In some embodiments, the ends of the first main cable 110-1 are fixedly connected to the beam 310 at the corresponding ends. The ends of the second main cable 110-2 are fixedly connected to the columns 320 at the corresponding ends. In this embodiment, the spacing between two adjacent columns 320 in the same component mounting module 300 is equal to the spacing between two adjacent second main cables 110-2, and also equal to the spacing between two adjacent rows of photovoltaic panels 400. In some embodiments, the second main cable 110-2 can be connected to the columns 320 using a clamp. In some embodiments, lugs can be embedded in the columns 320, and the second main cable 110-2 can be connected to the lugs.

[0065] In some embodiments, the ends of the first and second main cables 110-1, 110-2 can be fixedly connected to the corresponding crossbeams 310 or columns 320. Fixed connection refers to applying a certain prestress to the cables and then securing the ends. In some embodiments, the ends of the first and second main cables 110-1, 110-2 can be adjustably connected to the corresponding crossbeams 310 or columns 320. Adjustable connection refers to applying a predetermined force to the cables and installing stress-adjusting devices at the ends, allowing the cable stress to be adjusted by tightening or loosening the stress-adjusting devices.

[0066] In some embodiments, referring to FIG. 1 , the component mounting module 300 may further include a diagonal brace 330. The ends of the first main cable 110-1 and the second main cable 110-2 are anchored to the ground via the diagonal brace 330. In some embodiments, one end of the diagonal brace 330 is anchored to the ground or a pile foundation via a ground anchor, and the other end is anchored to the beam 310 or the column 320. The diagonal brace 330 is used to balance the tension on both sides of the beam 310 or the column 320. The first main cable 110-1 and the second main cable 110-2 are both arranged on the inner side of the beam 310, while the diagonal brace 330 is arranged on the outer side of the beam 310, which can balance the force on both sides of the beam 310. In some embodiments, one end of a portion of the diagonal brace 330 is connected to a clamp or lug on the column 320.

[0067] In some embodiments, multiple rows of tie rod assemblies 210 are spaced apart along the extension direction (i.e., transverse direction) of the main cable unit 110. In some embodiments, the distribution density of multiple rows of tie rod assemblies 210 can be uniform or uneven, and can be specifically adjusted according to actual terrain requirements. In some embodiments, the spacing between two adjacent rows of tie rod assemblies 210 can range from 4.5m to 7m. In some embodiments, the spacing between two adjacent rows of tie rod assemblies 210 can range from 5m to 6.5m. In some embodiments, the spacing between two adjacent rows of tie rod assemblies 210 can range from approximately 6m.

[0068] In some embodiments, referring to FIG1 , multiple rows of tie rod assemblies 210 can be evenly spaced laterally, with an equal number of photovoltaic panels 400 installed between each two adjacent rows of tie rod assemblies 210. Multiple rows of tie rod assemblies 210 are primarily used to enhance the wind-induced vibration resistance of the first and second main cables 110-1, 110-2. The evenly spaced multiple rows of tie rod assemblies 210 can evenly increase the longitudinal stiffness of the first and second main cables 110-1, 110-2, making the photovoltaic panels 400 less susceptible to damage due to severe localized cable expansion and contraction.

[0069] In some embodiments, the wind-resistant module 200 may include multiple rows of tie rod assemblies 210. Each row of tie rod assemblies 210 is positioned between two adjacent rows of main cable units 110. Alternatively, each row of tie rod assemblies 210 is positioned between two adjacent rows of photovoltaic panels 400. In some embodiments, the photovoltaic rack in Figure 2 only shows five rows of photovoltaic panels 400, which also includes five rows of main cable units 110. Accordingly, there are four rows of tie rod assemblies 210. Figure 2 is for schematic purposes only and does not limit the specific number of rows of photovoltaic panels 400, main cable units 110, and tie rod assemblies 210 used in this specification. In some embodiments, the number of tie rod assemblies 210 rows can be adjusted based on the overall requirements of the photovoltaic rack to accommodate different terrain and power requirements. For example, if there are six rows of photovoltaic panels 400 and main cable units 110, there would be five rows of tie rod assemblies 210. Alternatively, if there are seven rows of photovoltaic panels 400 and main cable units 110, there would be six rows of tie rod assemblies 210. For another example, the photovoltaic panels 400 and the main cable units 110 may be arranged in seven rows, and the tension rod assemblies 210 may be arranged in six rows, and so on.

[0070] Because the photovoltaic panels 400 on the photovoltaic rack are arranged at a certain angle, when this angled flat panel structure faces the wind, the front row of photovoltaic panels 400 facing the wind generally experience the greatest wind force. The photovoltaic panels 400 slightly further back experience less wind force than the panels further back, as the front row has already absorbed most of the wind force. Therefore, the tie rods in the tie rod assembly 210 of each span of the photovoltaic rack, which are the first to bear the wind load, can be rigid rods.

[0071] In some embodiments, the photovoltaic support in FIG2 includes five rows of photovoltaic panels 400 and five rows of main cable units 110. The five rows of main cable units 110 are, from top to bottom along the Y direction, a first main cable unit 111, a second main cable unit 112, a third main cable unit, a fourth main cable unit, and a fifth main cable unit. A first row of tie rod assemblies is disposed between the first main cable unit 111 and the second main cable unit 112. A second row of tie rod assemblies is disposed between the second main cable unit 112 and the third main cable unit. A third row of tie rod assemblies is disposed between the third main cable unit and the fourth main cable unit. A fourth row of tie rod assemblies is disposed between the fourth main cable unit and the fifth main cable unit.

[0072] In some embodiments, the multiple rows of tie rod assemblies 210 include a first row of tie rod assemblies 2101, a middle row of tie rod assemblies 2102, and a tail row of tie rod assemblies 2103. The first row of tie rod assemblies 2101 may be the first row of tie rod assemblies 210 from top to bottom along the Y direction, the tail row of tie rod assemblies 2103 may be the last row of tie rod assemblies 210 from top to bottom along the Y direction, and the middle row of tie rod assemblies 2102 may be one or more rows of tie rod assemblies 210 located between the first row of tie rod assemblies 210 and the last row of tie rod assemblies 210 along the Y direction. For example, the photovoltaic support in FIG2 includes four rows of tie rod assemblies 210. The first row of tie rod assemblies 2101 may be the first row of tie rod assemblies from top to bottom along the Y direction. The tail row of tie rod assemblies 2103 may be the last row from top to bottom along the Y direction (i.e., the fourth row of tie rod assemblies). The middle row of tie rod assemblies 2102 may be the second row of tie rod assemblies and the third row of tie rod assemblies located in the middle. The tie rods in the first and last row tie rod assemblies 2101 and 2103 are rigid rods, while the tie rods in the middle row tie rod assemblies 2102 are flexible rods. Rigid rods have a higher material modulus than flexible rods, resulting in greater stability and stronger wind vibration resistance. Flexible rods are less expensive than rigid rods. Therefore, while ensuring the overall wind vibration resistance of the photovoltaic rack is met, flexible rods can be flexibly selected for the middle rows of tie rod assemblies to reduce overall costs.

[0073] In some embodiments, the photovoltaic support may include more than five rows of photovoltaic panels 400. For example, the photovoltaic support may include seven rows of photovoltaic panels 400, and accordingly include six rows of tie rod assemblies 210. The more photovoltaic panels 400 there are in a photovoltaic support, the greater the wind load it bears, and therefore requires better wind vibration resistance. The photovoltaic support may be such that the tie rods of the first two rows of tie rod assemblies (for example, the first two rows of tie rod assemblies from top to bottom along the Y direction) are made of rigid rods, and the tie rods of the last two rows of tie rod assemblies (for example, the last two rows of tie rod assemblies from top to bottom along the Y direction) are made of rigid rods. In addition to the first two rows and the last two rows of tie rod assemblies, the middle rows of tie rod assemblies all use flexible rods.

[0074] In some embodiments, in areas such as large-span ponds, mountainous areas with complex geological conditions, and above sewage collection pools, the photovoltaic rack may further include more rows of photovoltaic panels 400. Therefore, the material selection for the multi-row tie rod assembly 210 can be specifically selected based on actual site requirements. For example, the tie rods in the first and last rows of tie rod assemblies may be rigid rods, such as the first row and the last two rows, the first two rows and the last row, or the first three rows and the last three rows.

[0075] In some embodiments, the rigid rods in the first row of tie rod assemblies 2101 and the tail row of tie rod assemblies 2103 are made of rigid materials with a material elastic modulus of 90 to 400 GPa, and the flexible rods in the middle row of tie rod assemblies 2102 are made of a material elastic modulus of 16 to 19 GPa. In some embodiments, the rigid rods can be made of cold-bent thin-walled steel pipes, aluminum alloy pipes, or composite pipes. The flexible rods can be made of ordinary steel wire ropes or steel strands. In some embodiments, the rigid rods in the first row of tie rod assemblies 2101 and the tail row of tie rod assemblies 2103 can be made of steel with a material elastic modulus of 20.600 GPa. In some embodiments, the rigid rods in the first row of tie rod assemblies 2101 and the tail row of tie rod assemblies 2103 can be made of aluminum alloy pipes with a material elastic modulus of 72 GPa.

[0076] Figure 4 is a schematic diagram of the three-dimensional structure of the flexible photovoltaic bracket from another angle according to some embodiments of the present specification; Figure 5 is an enlarged schematic diagram of point B in Figure 4; Figure 6A is a simulated schematic diagram of the tie rod unit according to some embodiments of the present specification; Figure 6B is a simulated schematic diagram of another tie rod unit according to some embodiments of the present specification; Figure 6C is a simulated schematic diagram of another tie rod unit according to some embodiments of the present specification; Figure 6D is a simulated schematic diagram of yet another tie rod unit according to some embodiments of the present specification.

[0077] In some embodiments, referring to FIG2 , multiple rows of tie rod assemblies 210 on a photovoltaic support extend longitudinally and are spaced apart transversely. Each row of tie rod assemblies 210 includes a plurality of tie rod units 211. A plurality of tie rod units 211 are arranged between two adjacent main cable units 110 in the transverse direction. A plurality of tie rod units 211 are connected end to end in the longitudinal direction to form a row of tie rod assemblies 210. FIG2 shows five main cable units 110, and a row of tie rod assemblies 210 is composed of four tie rod units 211 connected end to end in the longitudinal direction.

[0078] The tie rod unit 211 may be the smallest unit in the wind-resistant module 200 . Several tie rod units 211 are connected end to end to form a row of tie rod assemblies 210 . Several rows of tie rod assemblies 210 are arranged at intervals along the transverse direction to form the entire wind-resistant module 200 .

[0079] 4 , two adjacent main cable units 110 may include a first main cable unit 111 and a second main cable unit 112. The first main cable unit 111 includes a first main cable A 1111 and a second main cable A 1112. The second main cable unit 112 includes a first main cable B 1121 and a second main cable B 1122.

[0080] In some embodiments, each tie rod unit 211 includes at least three tie rods. In some embodiments, each tie rod unit 211 includes three tie rods, and the three tie rods are connected end to end to form a stable triangular structure. In some embodiments, each tie rod unit 211 includes four tie rods, such as Figures 6A-6D, and multiple tie rod units 211 are connected end to end to form a stable polygonal structure in which multiple triangles are spliced ​​together. In some embodiments, each tie rod unit 211 includes five or six tie rods, such as Figures 9A-9B, and multiple tie rod units 211 are connected end to end to form a stable polygonal structure in which multiple triangles are spliced ​​together.

[0081] In some embodiments, referring to Figures 5-6B, the tie rod unit 211 includes an upper crossbar 2111, a middle chord 2112, a lower crossbar 2113, and a middle diagonal bar 2114. The upper crossbar 2111, the middle chord 2112, the lower crossbar 2113, the middle diagonal bar 2114, and the middle chord 2112 of an adjacent tie rod unit 211 can be spliced ​​into a quadrilateral structure consisting of two triangular structures of the same size, wherein the middle diagonal bar 2114 serves as a side shared by the two triangular structures. Since the triangle has structural stability, the quadrilateral structure consisting of two triangles has higher stability, which can greatly improve the stability of the relative position between the first main cable and the second main cable in the main cable unit, and can effectively prevent the photovoltaic panel 400 from flipping due to wind force, that is, it can improve the wind vibration resistance of the entire photovoltaic support.

[0082] In some embodiments, the multiple rods of the rod unit 211 are all located on the same plane, and the plane formed by the quadrilateral structure of the rod units 211 is perpendicular to each main cable unit 110. Furthermore, the ground plane formed by the rod units 211 is perpendicular to the extension direction of the two main cables of each main cable unit 110. Generally speaking, each main cable unit 110 extends horizontally in the transverse direction, while the plane formed by the rod units 211 extends vertically in the longitudinal direction. Therefore, each rod unit 211 applies uniform tension to both sides of the corresponding main cable unit in the transverse direction, further ensuring the stability of the entire photovoltaic rack.

[0083] In some embodiments, referring to Figures 5 and 6A , the upper crossbar 2111 can be disposed between the first main cable A1111 in the first main cable unit 111 and the first main cable B1121 in the second main cable unit 112. The middle chord 2112 can be disposed between the first main cable A1111 and the second main cable A1112 in the first main cable unit 111. The lower crossbar 2113 can be disposed between the second main cable A1112 in the first main cable unit 111 and the second main cable B1122 in the second main cable unit 112. The middle diagonal bar 2114 can be disposed between the second main cable A1112 in the first main cable unit 111 and the first main cable B1121 in the second main cable unit 112. Generally speaking, tilting the photovoltaic panel 400 southward to an angle equal to its latitude can maximize the annual direct sunlight insolation rate. To maximize the light collection efficiency of the photovoltaic panel 400, the tilt angle of the photovoltaic panel 400 can be calculated based on the latitude of the installation site. The optimal tilt angle (the angle between the photovoltaic panel 400 and the horizontal plane) for a fixed photovoltaic panel 400 is generally between 20° and 40°, which allows for relatively efficient collection of sunlight and conversion into electrical energy. In this embodiment, since the tilt angle of the photovoltaic panel 400 is generally less than 45°, the spacing between the second main cable A1112 in the first main cable unit 111 and the first main cable B1121 in the second main cable unit 112 is relatively small. Therefore, disposing the middle diagonal rod 2114 between the second main cable A1112 and the first main cable B1121 in the second main cable unit 112 can reduce the cost of the middle diagonal rod 2114.

[0084] In some embodiments, referring to FIG6B , an upper cross bar 2111 may be disposed between the first main cable A1111 in the first main cable unit 111 and the first main cable B1121 in the second main cable unit 112. A middle chord bar 2112 may be disposed between the first main cable A1111 and the second main cable A1112 in the first main cable unit 111. A lower cross bar 2113 may be disposed between the second main cable A1112 in the first main cable unit 111 and the second main cable B1122 in the second main cable unit 112. A middle diagonal bar 2114 may be disposed between the first main cable A1111 in the first main cable unit 111 and the second main cable B1122 in the second main cable unit 112.

[0085] In some embodiments, the middle oblique rod 2114 in the embodiments of FIG. 6A and FIG. 6B may use a damper, which may further enhance the stability of the parallelogram structure formed by the two triangles.

[0086] In some embodiments, the endpoints of the upper crossbar 2111, the middle chord 2112, the lower crossbar 2113, and the middle diagonal bar 2114 of the tension rod unit 211 are all located on the two cables of the main cable unit 110. The lengths of the upper crossbar 2111, the middle chord 2112, the lower crossbar 2113, and the middle diagonal bar 2114 are determined by the horizontal spacing between the first and second main cables in the main cable unit 110, the horizontal spacing between two adjacent main cable units 110 (for example, the spacing between the first main cable A 1111 in the first main cable unit 111 and the first main cable B 1121 in the second main cable unit 112), and the desired inclination angle of the photovoltaic panel 400.

[0087] In some embodiments, referring to Figures 6C and 6D, the rod unit 211 may further include a first rod 2115, a second rod 2116, a third rod 2117, and a fourth rod 2118. The first rod 2115, the second rod 2116, the third rod 2117, and the fourth rod 2118 may be joined with the first rod 2115 of an adjacent rod unit 211 to form two triangular structures with the same base but different vertices, wherein the second rod 2116 and the third rod 2117 intersect. The rod unit 211 may be composed of two triangles with overlapping planes. The two stable triangular structures can leverage each other, thereby enhancing the structural stability of the entire rod unit 211.

[0088] In some embodiments, as shown in FIG6C , a first tension rod 2115 is disposed between the first main cable A1111 and the second main cable A1112 in the first main cable unit 111. A second tension rod 2116 is disposed between the second main cable A1112 in the first main cable unit 111 and the first main cable B1121 in the second main cable unit 112. A third tension rod 2117 is disposed between the first main cable A1111 in the first main cable unit 111 and the second main cable B1122 in the second main cable unit 112. A fourth tension rod 2118 is disposed between the second main cable A1112 in the first main cable unit 111 and the second main cable B1122 in the second main cable unit 112. In this embodiment, the fourth tension rod 2118 serves as the common base of the two triangular structures in the tension rod unit 211 and is located below the photovoltaic panel 400. This minimizes the blocking of sunlight by the tension rods in the tension rod unit 211, thereby improving the conversion rate of solar energy.

[0089] In some embodiments, referring to FIG6D , a first tension rod 2115 is disposed between the first main cable A 1111 and the second main cable A 1112 in the first main cable unit 111. A second tension rod 2116 is disposed between the second main cable A 1112 in the first main cable unit 111 and the first main cable B 1121 in the second main cable unit 112. A third tension rod 2117 is disposed between the first main cable A 1111 in the first main cable unit 111 and the second main cable B 1122 in the second main cable unit 112. A fourth tension rod 2118 is disposed between the first main cable A 1111 in the first main cable unit 111 and the first main cable B 1121 in the second main cable unit 112. The fourth tension rod 2118 serves as the common base of the two triangular structures in the tension rod unit 211 and is located above the photovoltaic panel 400. When the photovoltaic panel 400 with a certain inclination angle faces the wind, the wind load borne by the first main cable with a higher height is greater than that of the second main cable with a lower height. Therefore, the fourth pull rod 2118 is set between the first main cable A1111 in the first main cable unit 111 and the first main cable B1121 in the second main cable unit 112, which can make the structural stability of the pull rod unit 211 in this embodiment better.

[0090] In some embodiments, a row of tie rod assemblies 210 is composed of a plurality of tie rod units 211 connected end to end. Figures 6A, 6B, 6C, and 6D each illustrate two adjacent tie rod units 211. The plurality of tie rod units 211 in Figures 6A and 6B are connected end to end to form a plurality of parallelograms, which can improve the stiffness of the entire row of tie rod assemblies 210. The plurality of tie rod units 211 in Figures 6A and 6B are connected end to end to form a plurality of triangles that partially overlap and are connected, which can also improve the stiffness of the entire row of tie rod assemblies 210. In some embodiments, a tie rod can be provided at the tail end of a row of tie rod assemblies 210 between the first main cable and the second main cable to ensure the structural integrity of the entire row of tie rod assemblies 210.

[0091] Figure 7 is a schematic diagram of the three-dimensional structure of a flexible photovoltaic bracket according to other embodiments of this specification; Figure 8 is an enlarged schematic diagram of point C in Figure 7; Figure 9A is a schematic diagram of a pull rod unit according to other embodiments of this specification; Figure 9B is a schematic diagram of another pull rod unit according to other embodiments of this specification.

[0092] In some embodiments, referring to Figures 7 and 8 , each main cable unit 110 of the main cable load-bearing module 100 may further include a stabilizing cable. Specifically, each main cable unit 110 may include three cables: a first main cable, a second main cable, and a stabilizing cable. For example, in Figure 8 , the first main cable unit 111 includes a first main cable A1111, a second main cable A1112, and a stabilizing cable A1113, while the second main cable unit 112 includes a first main cable B1121, a second main cable B1122, and a stabilizing cable B1123.

[0093] The stabilizing cable (e.g., stabilizing cable A1113) in each main cable unit 110 can be vertically positioned below the first main cable (e.g., first main cable A1111) and second main cable (e.g., second main cable A1112) of the same unit. Corresponding tension rod units connect the first, second, and stabilizing cables of two adjacent main cable units 110 to enhance the stability and wind-resistance of the entire photovoltaic support. In some embodiments, the stabilizing cables in each main cable unit 110 maintain substantially consistent heights in the vertical direction.

[0094] In some embodiments, the stabilizing cable can be arranged in parallel with the first main cable and the second main cable. The two ends of the stabilizing cable are respectively fixed to the component mounting modules 300 at the corresponding ends.

[0095] In some embodiments, the rod unit 211 includes a first rod sub-unit 211-1. The vertices of the first rod sub-unit 211-1 are located on the first main cable A1111 and the second main cable A1112 of the first main cable unit 111, and the first main cable B1121 or the second main cable B1122 of the second main cable unit 112, forming a stable triangular structure.

[0096] In some embodiments, referring to FIG. 9A , the vertices of the first tension rod subunit 211 - 1 are respectively located on the first main cable A1111 and the second main cable A1112 of the first main cable unit 111 , and the second main cable B1122 of the second main cable unit 112 .

[0097] In some embodiments, referring to Figures 9A and 9B , the first tension rod subunit 211-1 includes a first sub-tie rod 211-11, a second sub-tie rod 211-12, and a third sub-tie rod 211-13. The first sub-tie rod 211-11 can be disposed between the first main cable A1111 and the second main cable A1112 in the first main cable unit 111. The second sub-tie rod 211-12 can be disposed between the first main cable A1111 in the first main cable unit 111 and the second main cable B1122 in the second main cable unit 112. The third sub-tie rod 211-13 can be disposed between the second main cable A1112 in the first main cable unit 111 and the second main cable B1122 in the second main cable unit 112. The first sub-tie rod 211-11, the second sub-tie rod 211-12, and the third sub-tie rod 211-13 are connected end-to-end to form a stable triangular structure. In this embodiment, the two endpoints of the first sub-rod 211-11 are respectively connected to the first main cable A1111 and the second main cable A1112 in the first main cable unit 111. The photovoltaic panel 400 is mounted on the first main cable A1111 and the second main cable A1112. Therefore, the first sub-rod 211-11 and the photovoltaic panel 400 are tilted at the same angle. The second sub-rod 211-12 and the third sub-rod 211-13 are both located below the backplane of the photovoltaic panel 400. The three rods of the first sub-rod 211-11 provide virtually no obstruction to the photovoltaic panel 400, effectively improving the photovoltaic panel 400's ability to collect sunlight.

[0098] In some embodiments, referring to Figures 9A and 9B , the tie rod unit 211 further includes a second tie rod sub-unit 211-2. The vertices of the second tie rod sub-unit 211-2 are located on the second main cable A 1112 of the first main cable unit 111, the stabilizing cable A 1113, and the second main cable B 1122 of the second main cable unit 112, forming a stable triangular structure.

[0099] In some embodiments, referring to Figures 9A and 9B, the second rod subunit 211-2 includes a fourth sub-rod 211-21 and a fifth sub-rod 211-22. The fourth sub-rod 211-21 is disposed between the second main cable A1112 and the stabilizing cable A1113 in the first main cable unit 111. The fifth sub-rod 211-22 is disposed between the stabilizing cable A1113 in the first main cable unit 111 and the second main cable B1122 in the second main cable unit 112. The third sub-rod 211-13, the fourth sub-rod 211-21, and the fifth sub-rod 211-22 are connected end-to-end to form a triangular structure. The first rod subunit 211-1 and the second rod subunit 211-2 are combined to form a quadrilateral. The third sub-rod 211-13 serves as a common rod for the first rod subunit 211-1 and the second rod subunit 211-2. The first rod subunit 211-1 is located above the third sub-rod 211-13, and the second rod subunit 211-2 is located below the third sub-rod 211-13.

[0100] In some embodiments, referring to FIG. 9A , a stabilizing cable (e.g., stabilizing cable 1113) is located directly below the first main cable (e.g., first main cable A1111) within the same main cable unit (e.g., first main cable unit 111). Furthermore, vertically, the distance from the first main cable to the third sub-tie rod 211-13 is equal to the distance from the stabilizing cable to the third sub-tie rod 211-13. Therefore, the first and second tie rod sub-units 211-1 and 211-2 form two triangular structures that are symmetrical about the third sub-tie rod 211-13. This parallelogram structure, composed of symmetrical triangles, offers increased stability. When the photovoltaic panel 400 is displaced or vibrates due to wind, the upper and lower triangles can leverage each other to achieve stronger wind-induced vibration resistance, effectively mitigating displacement or vibration of the photovoltaic panel 400.

[0101] In some embodiments, referring to FIG9B , the fourth sub-rod 211-21 is parallel to the second sub-rod 211-12 and has the same length, and the fifth sub-rod 211-22 is parallel to the first sub-rod 211-11 and has the same length. Therefore, the first sub-rod unit 211-1 and the second sub-rod unit 211-2 form a parallelogram.

[0102] In some embodiments, referring to Figures 9A and 9B, the second tie rod sub-unit 211-2 further includes a sixth tie rod 211-23. The sixth tie rod 211-23 can be arranged between the stabilizing cable A 1113 in the first main cable unit 111 and the stabilizing cable B 1123 in the second main cable unit 112. The sixth tie rod 211-23 is arranged parallel to the third tie rod 211-13 and has the same length. Therefore, the third tie rod 211-13, the fourth tie rod 211-21, the fifth tie rod 211-22, the sixth tie rod 211-23, and the fourth tie rod 211-21 of another adjacent second tie rod sub-unit 211-2 form a parallelogram structure consisting of two triangles. The sixth tie rod 211-23 is mainly used to further enhance the stability of the tie rod unit 211, thereby enhancing the wind vibration resistance of the entire photovoltaic support.

[0103] In some embodiments, referring to FIG9A , the rod unit 211 may include six rods: a first sub-rod 211-11, a second sub-rod 211-12, a third sub-rod 211-13, a fourth sub-rod 211-21, a fifth sub-rod 211-22, and a sixth sub-rod 211-23. In this embodiment, one rod unit 211 and the fourth sub-rod 211-21 of another adjacent rod unit 211 form three triangles of equal size, which are then assembled into a closed, stable structure. This stable structure includes a triangle and a parallelogram, providing excellent stability and strong wind vibration resistance.

[0104] In some embodiments, referring to FIG9B , the tie rod unit 211 may include six tie rods: a first tie rod 211-11, a second tie rod 211-12, a third tie rod 211-13, a fourth tie rod 211-21, a fifth tie rod 211-22, and a sixth tie rod 211-23. In this embodiment, one tie rod unit 211 and the fourth tie rod 211-21 of another adjacent tie rod unit 211 form three triangles of equal size, which are joined together to form a closed, stable structure. This stable structure includes two parallelograms, providing enhanced stability.

[0105] In some embodiments, a series of tie rod assemblies 210 is composed of multiple tie rod units 211 connected end to end. Figures 9A and 9B illustrate only two adjacent tie rod units 211. In some embodiments, referring to Figure 7 , three tie rods are arranged in a triangular structure between the first main cable, the second main cable, and the stabilizing cable of the last main cable unit at the end of a series of tie rod assemblies 210 to ensure the structural integrity of the entire series of tie rod assemblies 210.

[0106] FIG10 is an enlarged schematic diagram of point D in FIG7 , showing the connection between each pull rod and the cable in the pull rod unit 211 .

[0107] In some embodiments, the pull rod is fixedly connected to a cable (which may be a first main cable, a second main cable, or a stabilizing cable) via a node fixture 220. The node fixture 220 includes a first cable clamp 221 and a second cable clamp 222 disposed opposite each other. The first cable clamp 221 has a first receiving groove on one side proximal to the second cable clamp 222, and a first lug 2211 on the other side of the first cable clamp 221. The second cable clamp 222 has a second receiving groove corresponding to the first receiving groove on one side proximal to the first cable clamp 221, and a second lug 2221 on the other side of the second cable clamp 222. The cable clamp is disposed between the first cable clamp 221 and the second cable clamp 222 and is located within the receiving hole formed by the first and second receiving grooves.

[0108] In some embodiments, the first cable clamp 221 and the second cable clamp 222 are fixed together by bolts, fixing the cable in the receiving hole between the first cable clamp 221 and the second cable clamp 222 to prevent the node fixing member 220 from moving in the axial direction of the cable.

[0109] In some embodiments, both the first lug 2211 and the second lug 2221 are provided with mounting holes, the axes of the mounting holes being parallel to the extension direction of the cable.

[0110] In some embodiments, multiple tie rods may be connected to the node fixture 220. Referring to FIG. 9B , in some embodiments, a portion of the node fixtures 220 may require connection to two tie rods, such as the node fixture 220 connecting the first and second tie rods 211-11 and 211-12 on the first main cable A 1111. In some embodiments, a portion of the node fixtures 220 may require connection to three tie rods, such as the node fixture 220 connecting the fourth, fifth, and sixth tie rods 211-21, 211-22, and 211-23 on the stabilizing cable A 1113. In some embodiments, a portion of the node fixtures 220 may require connection to four tie rods, such as the node fixture 220 connecting the fourth, fifth, and two adjacent sixth tie rods 211-23 on the stabilizing cable B 1123. In some embodiments, six tension rods need to be connected at a portion of the node fixing member 220, for example, the second sub-tie rod 211-12, the third sub-tie rod 211-13, the fifth sub-tie rod 211-22 and the first sub-tie rod 211-11, the third sub-tie rod 211-13, and the fourth sub-tie rod 211-21 of another adjacent tension rod unit 211 at the node fixing member 220 of the second main cable B1122.

[0111] In some embodiments, the multiple tie rods in the tie rod unit 211 may be of a circular tube structure, or a square tube or rectangular tube structure. In some embodiments, the radial dimensions of the multiple tie rods in the tie rod unit 211 are no greater than 30 mm. For example, when the tie rods are circular tubes, the diameter of each tie rod is no greater than 30 mm. For another example, when the tie rods are square tubes or rectangular tubes, the side length or length and width of each tie rod is no greater than 30 mm.

[0112] In some embodiments, the slenderness ratio of the upper crossbar 2111, the middle chord 2112, the lower crossbar 2113, and the middle diagonal bar 2114 is no greater than 200, and the slenderness ratio under axial tension is no greater than 400. The slenderness ratio of a bar is one of the criteria for determining its stability. The tension rod provided in this embodiment has high stability, so that the tension rod unit 211 composed of the upper crossbar 2111, the middle chord 2112, the lower crossbar 2113, and the middle diagonal bar 2114 has strong wind vibration resistance.

[0113] FIG11 is a schematic diagram of a partial structure of a flexible photovoltaic support according to some embodiments of this specification, mainly showing the connection method between the stabilizing cable and the component mounting module 300 .

[0114] In some embodiments, both ends of the stabilizing cable can be fixed to the crossbeam 310 or the column 320. The connection method of the stabilizing cable to the crossbeam 310 or the column 320 can be referred to the connection method of the first main cable 110-1 and the second main cable 110-2 to the crossbeam 310 or the column 320 above, and will not be repeated here.

[0115] In some embodiments, both ends of the stabilizing cable can be anchored to the pile foundation or the ground through the inclined brace 330. In some embodiments, the inclined brace 330 can use a cable or a pull rod, one end of which is anchored to the pile foundation through a ground anchor, and the other end is anchored to the beam 310 or the column 320. In some embodiments, referring to FIG12A, both ends of the inclined brace 330 can be fixed, that is, the ends are fixed after a certain prestress is applied to the inclined brace 330 during installation. In some embodiments, the stress of the inclined brace 330 is adjustable. Referring to FIG12B, a stress-adjustable device 331 can be installed at the end of the inclined brace 330, and the stress of the inclined brace 330 can be adjusted by the stress-adjustable device 331. In some embodiments, the stress-adjustable device 331 of the inclined brace 330 can be similar to a screw structure, and the stress can be adjusted by tightening or loosening the screw.

[0116] In some embodiments, as shown in Figure 13 , a stabilizing cable fixing rod 340 is provided at the junction between the stabilizing cable and the pull rod unit 211. The upper end of the stabilizing cable fixing rod 340 is connected to the junction, and the lower end is anchored to the ground or a pile foundation. In some embodiments, the stabilizing cable fixing rod 340 extends in the plane formed by the pull rod unit 211. The addition of the stabilizing cable fixing rod 340 can enhance the stability of the pull rod unit 211, thereby counteracting the up and down movement of the photovoltaic panel 400 caused by wind.

[0117] In some embodiments, the stabilizing cable fixing rod 340 includes a damper 350. The lower end of the stabilizing cable fixing rod 340 is fixed to the ground or pile foundation through the damper 350.

[0118] The damper 350 is a device that provides resistance to movement and dissipates movement energy. The damper 350 can further enhance the stability of the tie rod unit 211 to improve the wind vibration resistance of the entire photovoltaic support.

[0119] The beneficial effects that may be brought about by the embodiments of this specification include but are not limited to: (1) The wind-resistant module structure in this specification is simple and effective, which can enhance the stability of the main cable load-bearing module and improve the wind-resistant vibration capability of the entire photovoltaic bracket; (2) The first row of tie rod assemblies and the tail row of tie rod assemblies use rigid rods, and the middle row of tie rod assemblies use flexible rods, which can ensure the wind-resistant vibration capability of the entire photovoltaic bracket and reduce the structural cost; (3) In some embodiments, the first main cable is anchored on the crossbeam and the second main cable is anchored on the column, which can reduce the force on the crossbeam and further reduce the structural cost.

[0120] It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other possible beneficial effects.

[0121] While the basic concepts have been described above, it will be apparent to those skilled in the art that the detailed disclosure is merely illustrative and does not limit this specification. Although not explicitly stated herein, various modifications, improvements, and revisions to this specification may be made by those skilled in the art. Such modifications, improvements, and revisions are suggested in this specification and remain within the spirit and scope of the exemplary embodiments of this specification.

[0122] This specification also uses specific terms to describe the embodiments of this specification. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that references to "one embodiment," "an embodiment," or "an alternative embodiment" two or more times in different locations in this specification do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of this specification may be appropriately combined.

[0123] In addition, unless expressly stated in the claims, the order of the processing elements and sequences, the use of alphanumeric characters, or the use of other names described in this specification are not intended to limit the order of the processes and methods of this specification. Although the above disclosure discusses some embodiments that are currently considered useful through various examples, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that are consistent with the spirit and scope of the embodiments of this specification. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only by software solutions, such as installing the described system on an existing server or mobile device.

[0124] Similarly, it should be noted that, in order to simplify the description of this specification and facilitate understanding of one or more embodiments, the foregoing description of the embodiments of this specification sometimes combines multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not mean that the subject matter of this specification requires more features than those recited in the claims. In fact, the features of an embodiment may be fewer than all the features of the individual embodiments disclosed above.

[0125] In some embodiments, numbers are used to describe the quantity of components and attributes. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise stated, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the description and claims are approximate values, which may change according to the required characteristics of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of this specification are approximate values, in specific embodiments, the settings of such numerical values ​​are as accurate as possible within the feasible range.

[0126] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, and documents, cited in this specification is hereby incorporated by reference in its entirety. This includes application history documents that are inconsistent with or conflict with the content of this specification, as well as documents (currently or subsequently attached to this specification) that limit the broadest scope of the claims of this specification. It should be noted that if the descriptions, definitions, and / or terminology used in the accompanying materials are inconsistent or conflicting with the content of this specification, the descriptions, definitions, and / or terminology used in this specification will control.

[0127] Finally, it should be understood that the embodiments described in this specification are intended only to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, by way of example and not limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly described and illustrated in this specification.

Claims

1. A flexible photovoltaic bracket, characterized in that: include: A main cable load-bearing module (100), a wind-resistant module (200) and a component installation module (300); The main cable load-bearing module (100) comprises a plurality of main cable units (110) for carrying the photovoltaic panel (400); The wind-resistant module (200) is disposed between a plurality of the main cable units (110) and is used to stabilize the main cable load-bearing module (100); The component installation module (300) is connected to the main cable load-bearing module (100) and is used to anchor the main cable load-bearing module (100).

2. The flexible photovoltaic bracket according to claim 1, characterized in that: Each of the main cable units (110) comprises a first main cable (110-1) and a second main cable (110-2); the wind-resistant module (200) comprises a plurality of rows of tie rod assemblies (210); the plurality of rows of tie rod assemblies (210) are spaced apart along the extension direction of the main cable unit (110), and the plurality of rows of tie rod assemblies (210) are perpendicular to the main cable unit (110).

3. The flexible photovoltaic support according to claim 1, characterized in that: The wind-resistant module (200) includes multiple rows of tie rod assemblies (210); the multiple rows of tie rod assemblies (210) include a first row of tie rod assemblies (2101), a middle row of tie rod assemblies (2102) and a tail row of tie rod assemblies (2103); the tie rods in the first row of tie rod assemblies (2101) and the tail row of tie rod assemblies (2103) are rigid rods, and the tie rods in the middle row of tie rod assemblies (2102) are flexible rods.

4. The flexible photovoltaic support as claimed in claim 3, characterized in that: The tie rods of the first two tie rod rows and the last two tie rod rows of the multiple tie rod rows (210) are rigid rods; and the tie rods of the middle tie rod rows other than the first two tie rod rows and the last two tie rod rows are flexible rods.

5. The flexible photovoltaic support according to claim 2, characterized in that: Each row of the pull rod assembly (210) comprises a plurality of pull rod units (211); the pull rod unit (211) is arranged between two adjacent main cable units (110).

6. The flexible photovoltaic support according to claim 5, characterized in that: Two adjacent main cable units (110) include a first main cable unit (111) and a second main cable unit (112); the pull rod unit (211) includes: an upper cross bar (2111) disposed between the first main cable A (1111) in the first main cable unit (111) and the first main cable B (1121) in the second main cable unit (112); a middle chord rod (2112) disposed between the first main cable A (1111) and the second main cable A (1112) of the first main cable unit (111); a lower cross bar (2113) disposed between the second main cable A (1112) of the first main cable unit (111) and the second main cable B (1122) in the second main cable unit (112); and A middle oblique rod (2114) is arranged between the second main cable A (1112) in the first main cable unit (111) and the first main cable B (1121) in the second main cable unit (112), or between the first main cable A (1111) in the first main cable unit (111) and the second main cable B (1122) in the second main cable unit (112).

7. The flexible photovoltaic support according to claim 5, characterized in that: Two adjacent main cable units (110) include a first main cable unit (111) and a second main cable unit (112); the pull rod unit (211) includes: a first pull rod (2115) disposed between the first main cable A (1111) and the second main cable A (1112) in the first main cable unit (111); a second tension rod (2116) disposed between the second main cable A (1112) in the first main cable unit (111) and the first main cable B (1121) in the second main cable unit (112); a third tension rod (2117) disposed between the first main cable A (1111) in the first main cable unit (111) and the second main cable B (1122) in the second main cable unit (112); and The fourth pull rod (2118) is arranged between the first main cable A (1111) in the first main cable unit (111) and the first main cable B (1121) in the second main cable unit (112), or between the second main cable A (1112) in the first main cable unit (111) and the second main cable B (1122) in the second main cable unit (112).

8. The flexible photovoltaic support according to claim 2, characterized in that: Each of the main cable units (110) further comprises a stabilizing cable; the pull rod assembly (210) comprises a plurality of pull rod units (211); and the pull rod unit (211) is arranged between two adjacent main cable units (110).

9. The flexible photovoltaic support according to claim 8, characterized in that: The tie rod unit (211) includes a first tie rod sub-unit (211-1); the vertices of the first tie rod sub-unit (211-1) are respectively located on the first main cable A (1111) of the first main cable unit (111), the second main cable A (1112), and the second main cable B (1122) of the second main cable unit (112), forming a triangular structure.

10. The flexible photovoltaic support according to claim 9, characterized in that: The first tie rod subunit (211-1) comprises a first sub-tie rod (211-11), a second sub-tie rod (211-12) and a third sub-tie rod (211-13); wherein, The first sub-tension rod (211-11) is arranged between the first main cable A (1111) and the second main cable A (1112) in the first main cable unit (111); The second sub-tension rod (211-12) is arranged between the first main cable A (1111) in the first main cable unit (111) and the second main cable B (1122) in the second main cable unit (112); The third sub-tension rod (211-13) is arranged between the second main cable A (1112) in the first main cable unit (111) and the second main cable B (1122) in the second main cable unit (112); The first sub-tie rod (211-11), the second sub-tie rod (211-12) and the third sub-tie rod (211-13) are connected end to end to form a triangular structure.

11. The flexible photovoltaic support according to claim 10, characterized in that: The pull rod unit (211) further comprises a second pull rod sub-unit (211-2); the vertices of the second pull rod sub-unit (211-2) are respectively on the second main cable A (1112) of the first main cable unit (111), the stabilizing cable (1113) and the second main cable B (1122) of the second main cable unit (112), forming a triangular structure.

12. The flexible photovoltaic support according to claim 11, characterized in that: The second tie rod sub-unit (211-2) comprises a fourth tie rod (211-21) and a fifth tie rod (211-22); wherein, The fourth sub-tension rod (211-21) is arranged between the second main cable A (1112) and the stabilizing cable (1113) in the first main cable unit (111); The fifth sub-tension rod (211-22) is arranged between the stabilizing cable (1113) in the first main cable unit (111) and the second main cable B (1122) in the second main cable unit (112); The third sub-tie rod (211-13), the fourth sub-tie rod (211-21) and the fifth sub-tie rod (211-22) are connected end to end to form a triangular structure.

13. The flexible photovoltaic support according to claim 12, characterized in that: The second tension rod subunit (211-2) further includes: the sixth sub-tension rod (211-23), which is arranged between the stabilizing cable (1113) in the first main cable unit (111) and the stabilizing cable (1123) in the second main cable unit (112).

14. The flexible photovoltaic support according to claim 8, characterized in that: Both ends of the stabilizing cable are respectively fixed on the crossbeam (310) or the column (320).

15. The flexible photovoltaic support according to any one of claims 9 to 13, characterized in that: A stabilizing cable fixing rod (340) is arranged at the node between the stabilizing cable and the pull rod unit (211); the upper end of the stabilizing cable fixing rod (340) is connected to the node, and the lower end is anchored on the ground.

16. The flexible photovoltaic support according to claim 15, characterized in that: The stabilizing cable fixing rod (340) comprises a damper (350); the lower end of the stabilizing cable fixing rod (340) is fixedly connected to the ground via the damper (350).

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