A photovoltaic support and a flexible tracking photovoltaic system

Abstract

The application discloses a photovoltaic support and a flexible tracking photovoltaic system, and the photovoltaic support comprises end columns which are arranged at intervals, two parallel main ropes which are fixed to the end columns, a plurality of rotating nodes which are arranged at intervals on the two main ropes, rotating nodes for bearing photovoltaic panel assemblies and comprising fixing parts, rotating parts and supporting parts, the fixing parts being fixedly arranged on the main ropes, the rotating parts being rotatable based on the fixing parts, and the supporting parts being arranged on the rotating parts and directly connected with the photovoltaic panel assemblies, wind-resistant ropes and wind-resistant frames, the wind-resistant ropes being arranged in the length direction of the main ropes and connected with the main ropes through the wind-resistant frames to form an integrated structure. The application provides a stable bearing base by arranging the structures of the main ropes, the wind-resistant ropes and the wind-resistant frames, so that the photovoltaic panel assemblies can be arranged, and the photovoltaic panel assemblies can track light rays when the photovoltaic panel assemblies are assembled based on the rotating action of the main ropes, so that the power generation efficiency of the flexible tracking photovoltaic system is improved.

Description

[0001] This application is a divisional application of the invention filed on December 12, 2024, entitled "A Photovoltaic Bracket and Flexible Tracking Photovoltaic System", with application number 202411831950.9. Technical Field

[0002] This invention relates to the field of photovoltaic equipment technology, and in particular to a photovoltaic bracket and a flexible tracking photovoltaic system. Background Technology

[0003] In the field of photovoltaic (PV) equipment, PV tracking brackets support, fix, and rotate PV modules, thereby achieving better power generation efficiency by receiving more sunlight. Currently, most PV tracking brackets use a motor combined with a rotary reducer to drive the main shaft, which in turn drives the PV modules on the main shaft to track the sun in real time. Because the main shaft needs to rotate synchronously with the PV modules, the motor requires a stable foundation structure and significant power output, and is therefore mostly used for PV bracket structures that are directly installed on the ground or have a small span. For PV module installation scenarios with complex terrain and large spans, more columns are needed for support, and a main shaft with a large cross-section is required for support and rotation. This not only increases costs but also makes it difficult for small-span structures to meet the installation requirements in some complex mountainous environments, thus hindering the PV brackets from achieving high-efficiency power generation from the PV modules.

[0004] Therefore, how to improve the adaptability of photovoltaic brackets in complex environments and meet the high-efficiency power generation requirements of photovoltaic modules is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a photovoltaic support system to improve the adaptability of the photovoltaic support system in complex environments and meet the high-efficiency power generation requirements of photovoltaic modules.

[0006] Another object of the present invention is to provide a flexible tracking photovoltaic system comprising the above-mentioned photovoltaic bracket.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A photovoltaic mounting bracket includes: Two sets of end columns are installed at intervals. Two main cables are arranged in parallel and fixed to the end column. Multiple rotating nodes are arranged at intervals on the two main cables. The rotating nodes are used to support the photovoltaic panel module and drive the photovoltaic panel module to rotate based on the main cables. The rotating node includes a fixed part, a rotating part, and a supporting part. The fixed part is fixedly mounted on the main cable. The rotating part is rotatably connected to the fixed part, and the fixed part and the rotating part have a concentrically nested annular structure. A sliding bearing is provided in the nested area of ​​the fixed part and the rotating part. The supporting part is fixedly connected to the rotating part and is directly connected to the photovoltaic panel assembly. During the rotation adjustment of the photovoltaic panel, the fixed part and the main cable remain in a fixed position, while the rotating part rotates relative to the fixed part. The wind-resistant cable and wind-resistant frame are provided. The wind-resistant cable is arranged along the length of the main cable and is connected to the main cable as an integral structure by a number of wind-resistant frames.

[0008] Preferably, in the photovoltaic support structure described above, the fixing part is fixedly mounted on the main cable by a locking component, and the locking component is provided in a one-to-one correspondence with the main cable.

[0009] Preferably, the photovoltaic bracket further includes a driving unit, which is disposed on the fixed part and connected to the rotating part in a transmission manner. The driving unit is used to output power to drive the rotating part to rotate relative to the fixed part.

[0010] Preferably, in the above-mentioned photovoltaic support structure, the wind-resistant cable is arranged on the symmetrical plane of two adjacent main cables, and the wind-resistant frame is a triangular structure and is fixedly connected to the two main cables and the single wind-resistant cable at three vertices.

[0011] Preferably, in the photovoltaic support structure described above, a plurality of intermediate columns are provided between the two sets of end columns, and the intermediate columns are located on the path of the main cable and are fixedly connected to the main cable.

[0012] Preferably, in the above-mentioned photovoltaic support structure, the wind-resistant frame in the middle region of the end columns and the middle columns of a single set has a larger vertical dimension than the other wind-resistant frames.

[0013] Preferably, in the above-mentioned photovoltaic bracket, the fixing part further includes an inner ring frame and a connecting beam, the connecting beam is arranged through the center of the inner ring frame, and the locking component cooperates with the connecting beam to form a connecting hole for the main cable to pass through; The rotating part further includes an outer ring frame and a supporting crossbeam. The supporting crossbeam is fixedly disposed on the outer wall surface of the outer ring frame and is arranged parallel to the connecting beam. The supporting part is fixedly disposed on the supporting crossbeam.

[0014] Preferably, in the above-mentioned photovoltaic bracket, the rotating part further includes a reinforcing beam, the two ends of which are fixed to the outer wall surface of the outer ring frame and the supporting crossbeam, respectively, and at least two reinforcing beams are symmetrically arranged about the outer ring frame.

[0015] Preferably, the photovoltaic support structure further includes a drive unit, which is an electric push rod with both ends hinged to the fixed part and the rotating part, respectively. The electric push rod includes a base and a telescopic rod. The base is rotatably mounted on the connecting beam, and the actuating end of the telescopic rod is rotatably mounted on the supporting crossbeam.

[0016] Preferably, in the above-mentioned photovoltaic support structure, the support portion includes at least two parallel and spaced-apart support purlins, which are parallel to the main cable and used to support the photovoltaic panel assembly. The support purlins are U-shaped beams, and the opening sides of two adjacent support purlins face each other.

[0017] A flexible tracking photovoltaic system includes a photovoltaic panel assembly and a photovoltaic support as described in any one of the above claims, wherein the photovoltaic panel assembly is disposed on a rotation node on the photovoltaic support to drive the photovoltaic panel assembly to perform rotational movement relative to the main cable via the rotation node.

[0018] As can be seen from the above technical solution, the photovoltaic support provided by the present invention sets end columns as the bearing foundation to provide connection support on both sides of the main cable. At the same time, for two adjacent and parallel main cables, wind-resistant cables and wind-resistant supports are also provided so that the main cables and wind-resistant cables are connected into an integrated structure through the wind-resistant supports, thereby having stronger wind resistance performance and reducing the risk of failure of the photovoltaic support for photovoltaic panel modules under strong wind conditions. Meanwhile, the photovoltaic support structure also features multiple rotating nodes spaced apart on the main cable. These rotating nodes serve as load-bearing structures for other components, with the fixed parts fixed to the main cable. The fixed parts are rotatably connected to the rotating parts, ensuring that the fixed parts and main cable remain in a fixed position during adjustment of the photovoltaic support's rotating nodes, while adjustment is achieved solely through the rotating parts. Specifically, a support part is fixedly connected to the rotating part, which is directly connected to the photovoltaic panel assembly. This allows the main cable to act only as a support component and not participate in the rotation during the rotation adjustment of the photovoltaic panel assembly using the photovoltaic support structure of this invention. This ensures that the main cable maintains a stable tension support effect after tensioning and fixing. The rotating and support structures facilitate smooth rotation adjustment of the photovoltaic panel assembly. The supporting foundation of this structure is the main cable, not a column structure, allowing for use in photovoltaic panel installation scenarios with large spans. This meets the light tracking requirements of the photovoltaic panel assembly, enabling the installation of a tracking flexible photovoltaic system and improving the power generation efficiency of the flexible tracking photovoltaic system. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front view of a photovoltaic support structure provided in an embodiment of the present invention; Figure 2 for Figure 1 Axonometric drawing of a single-sided structure; Figure 3 for Figure 2 Detailed view of area A in the image; Figure 4 for Figure 2 Detailed view of area B in the image; Figure 5 This is a structural diagram of a single-sided end column; Figure 6 This is a schematic diagram of the rotating node. Figure 7 This is a schematic diagram of the assembly structure of a single rotating node, main cable, and photovoltaic panel assembly. Figure 8 This is a schematic diagram of the connection structure between the locking component and the main cable; Figure 9 This is a schematic diagram of the installation of a photovoltaic panel assembly and multiple rotating nodes.

[0021] Among them, 10-fixed part; 110-inner ring frame; 120-connecting beam; 20-rotating part; 210-outer ring frame; 2110-upper shell; 2120-lower shell; 220-supporting crossbeam; 230-reinforcing beam; 30-drive part; 310-electric push rod; 3110-base; 3120-telescopic rod; 40-support part; 410-supporting purlin; 50-locking component; 510-support; 520-U-bolt; 60-sliding bearing; 710-main cable; 720-photovoltaic panel assembly; 730-rotating node; 740-end column; 750-wind-resistant cable; 760-wind-resistant frame; 770-intermediate column. Detailed Implementation

[0022] The core of this invention is to disclose a photovoltaic support system to improve the adaptability of the photovoltaic support system in complex environments and meet the high-efficiency power generation requirements of photovoltaic modules.

[0023] Another core aspect of this invention is to provide a flexible tracking photovoltaic system comprising the aforementioned photovoltaic support structure.

[0024] To enable those skilled in the art to better understand the present invention, embodiments of the present invention will be described below with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the invention as described in the claims. Additionally, the complete contents of the configurations shown in the embodiments below are not limited to those necessary for the solution of the invention described in the claims.

[0025] like Figures 1-5 As shown, the photovoltaic support structure provided in this embodiment of the invention mainly includes end columns 740, main cables 710, wind-resistant cables 750, and wind-resistant frames 760. The end columns 740 serve as the basic load-bearing structure of the photovoltaic support structure. Two sets of end columns 740 are spaced apart at both ends of the area where photovoltaic panel modules 720 need to be installed. Each set of end columns 740 can contain two or more column structures to accommodate multiple main cables 710. It should be noted that for some ground structures where the stability of the end columns 740 is poor, and for some main cables 710 with large spans and high tension requirements, the end columns 740 can also be reinforced with stay cables to enhance the connection points with the ground, thereby improving the stability of the end columns 740.

[0026] Both ends of the main cable 710 are tightened and fixed by the end posts 740, and two adjacent main cables 710 are arranged in parallel to provide an installation platform. In particular, multiple rotating nodes 730 are provided at intervals on the two main cables 710. Part of the structure of the rotating node 730 is fixedly connected to the main cable 710, while another part of the structure can rotate relative to the main cable 710. The moving area on the rotating node 730 is used to support the photovoltaic panel module 720, thereby driving the photovoltaic panel module 720 to rotate based on the main cable 710, and realizing the sunlight tracking effect of the photovoltaic panel module 720.

[0027] To ensure the stability of the photovoltaic support structure for the photovoltaic panel module 720 provided in the above embodiments, the photovoltaic support structure also includes a wind-resistant cable 750 and a wind-resistant frame 760. The wind-resistant cable 750 is arranged along the length of the main cable 710 and passes through part or all of the main cable 710. At the same time, the wind-resistant cable 750 is connected to the main cable 710 as an integral structure through several wind-resistant frames 760, so that the integral structure of the main cable 710 and the wind-resistant cable 750 has stronger structural stability and can resist strong wind conditions.

[0028] Furthermore, to enhance the structural reinforcement effect of the wind-resistant cable 750 on the main cable 710, in some embodiments of the present invention, the wind-resistant cable 750 is disposed on the plane of symmetry of two adjacent main cables 710. It should be noted that the plane of symmetry is located between the two main cables 710, perpendicular to the plane formed by the two main cables 710, and equidistant from the two main cables 710. Correspondingly, the wind-resistant frame 760 is preferably configured as a structurally stable triangular or trapezoidal structure. Here, a triangular structure refers to a structure whose main body is triangular. Taking a triangular structure as an example, the two main cables 710 and the single wind-resistant cable 750 are respectively fixedly disposed at the three vertices of the triangular structure of the wind-resistant frame 760 to meet the structural reinforcement and wind resistance requirements of the main cable 710.

[0029] It should be noted that the photovoltaic support provided in this embodiment of the invention has the requirement of supporting a large span. Under such conditions, the two end columns 740 are insufficient to provide structural support for the main cable 710, which may lead to the risk of the main cable 710 falling. Therefore, in some embodiments of the invention, a number of intermediate columns 770 are also provided between the two sets of end columns 740. The number of intermediate columns 770 can be increased appropriately according to the span between the two sets of end columns 740. At the same time, the intermediate columns 770 are set on the path of the main cable 710 and fixedly connected to the main cable 710 to support the main cable 710 and improve the tension stability of the main cable 710.

[0030] Based on the above embodiments, multiple wind-resistant frames 760 can be spaced apart between the end columns 740 and the middle columns 770, i.e., within one span. It should be noted that the middle wind-resistant frame 760 between the end columns 740 and the middle columns 770 has a larger vertical dimension than the wind-resistant frames 760 at other locations. The wind-resistant cable 750 is not taut along its length, but rather undulates vertically. Figure 1 As shown, the wind-resistant cable 750 has its lowest point structure in the middle area between the end post 740 and the middle post 770. The flexible wind-resistant cable 750 can improve its wind resistance performance by swaying and dissipating force under strong wind conditions.

[0031] Furthermore, in the photovoltaic support provided in this embodiment of the invention, the rotation node 730 is disposed on the main cable 710 so as to realize the rotation of the photovoltaic panel assembly 720 based on the main cable 710, thereby satisfying the real-time tracking of sunlight by the photovoltaic panel assembly 720 and improving the power generation efficiency of the flexible tracking photovoltaic system.

[0032] Specifically, the rotating node 730 mainly includes a fixing part 10, a rotating part 20, a driving part 30, and a supporting part 40. The fixing part 10 is a rigid structure and is fixedly mounted on the main cable 710 by locking components 50, providing a basic load-bearing structure for the other components of the rotating node 730. The locking components 50 are arranged in a one-to-one correspondence with the main cables 710. Specifically, each main cable 710 has one locking component 50. In some embodiments, two main cables 710 are usually arranged in parallel and tensioned by columns at both ends. Correspondingly, for a single rotating node 730, its fixing part 10 is fixedly connected to the main cable 710 by two locking components 50. The two fixed static points ensure that the fixing part 10 maintains a stable structural configuration on the main cable 710.

[0033] In the above structure, such as Figures 6-9 As shown, the locking component 50 can be a single U-bolt 520. The U-bolt 520 passes through the structural beam on the fixing part 10 to form a connecting hole structure between the closed end of the U-bolt 520 and one side wall of the structural beam. The connecting hole structure is used for the main cable 710 to pass through. Then, by tightening the U-bolt 520 so that the closed end of the U-bolt 520 contacts the main cable 710, the main cable 710 is pressed against the side wall of the structural beam. Tightening the nut on the U-bolt 520 can achieve the fixed setting of the structural beam on the main cable 710. Furthermore, considering that the main cable 710 is in direct contact with the structural beam on the fixing part 10, there is a significant risk of wear on the contact surface. Therefore, in some embodiments of the present invention, the locking component 50 specifically includes a U-bolt 520 and a support 510 that cooperates with the U-bolt 520. Specifically, the support 510 includes a groove structure formed by four legs, and the bottom structure of the groove is an arc surface. The U-bolt 520 passes through both sides of the support 510 and is fixedly connected to the structural beam on the fixing part 10. Based on this, the main cable 710 can be placed on the support. The groove on the support 510 is connected to the groove through an arc-shaped structure. At the same time, the closed end of the U-bolt 520 is also a curved arc-shaped structure. When the U-bolt 520 presses the main cable 710 into the groove position of the support 510, the main cable 710 is in contact with the arc-shaped surface in the circumferential direction, which can reduce the risk of wear on the main cable 710. It should also be noted that the groove structure formed by the legs of the support 510 can limit the main cable 710 after it is inserted, thus preventing the main cable 710 from affecting the stability of the fixing part 10 due to excessive shaking.

[0034] It should be noted that the above structure simplifies the structural complexity of the rotating node 730 while maintaining its functional effect. Similarly, the fixing part 10 and the single main cable 710 can also be fixed by two or more locking parts 50. The two or more locking parts 50 are spaced apart in the length direction of the main cable 710 to improve the structural stability of the fixing part 10 through multi-point connection.

[0035] Based on this, the rotating part 20 is rotatably connected to the fixed part 10. Here, rotatable connection means that the rotating part 20 can rotate relative to the fixed part 10 and the main cable 710. The specific rotation is achieved by the drive part 30. The drive part 30 is provided on the fixed part 10 and is connected to the rotating part 20 for transmission. The drive part 30 is used to output power, which drives the rotating part 20 to generate rotational movement relative to the fixed part 10 based on the fixed part 10.

[0036] It should be noted that the drive unit 30 can be fixedly mounted on the fixed part 10 so that one end of it is stationary relative to the main cable 710. The drive unit 30 can include a swing rod. The drive unit 30 drives the swing rod to swing based on a preset point through electric or hydraulic action. The moving end of the swing rod is fixedly connected to the rotating part 20. During the swinging process, the swing rod can drive the rotating part 20 to rotate relative to the fixed part 10. By setting the swing direction of the swing rod, the clockwise and counterclockwise rotation of the rotating part 20 can be achieved, thereby enabling the rotating node 730 to have the effect of driving the rotation of the photovoltaic panel module 720.

[0037] Similarly, the drive unit 30 can also be a structure with its two ends hinged to the fixed part 10 and the rotating part 20 respectively. Based on this, the drive unit 30 adjusts its own length and the fixed part 10 is fixed relative to the main cable 710. It then applies a force to the rotating part 20 through the other end, thereby satisfying the clockwise and counterclockwise movement of the rotating part 20 relative to the fixed part 10 through the elongation and shortening action.

[0038] Furthermore, the support part 40 is a structure that is directly connected to the photovoltaic panel assembly 720 in the flexible tracking photovoltaic system. It is provided on the rotating part 20 and can be fixed to the rotating part 20 as an integral structure by welding or bolting. Under the driving action of the drive part 30, it can follow the rotating part 20 to perform a rotational action relative to the fixed part 10. In this way, when the rotating node 730 is used in the flexible tracking photovoltaic system, it drives the photovoltaic panel assembly 720 to rotate and achieve the effect of tracking the light.

[0039] The rotating node 730 provided in this embodiment of the invention uses a fixing part 10 as a load-bearing structure for other components. The fixing part 10 is fixedly mounted on the main cable 710 by a locking part 50. Simultaneously, the fixing part 10 is rotatably connected to a rotating part 20, so that during the adjustment of the rotating node 730, the fixing part 10 and the main cable 710 remain in a fixed position, and adjustment is achieved solely through the rotating part 20. This rotating node 730 eliminates the need for a bottom support column structure; stable installation is achieved solely based on the well-tensioned main cable 710, reducing the production cost of new flexible tracking photovoltaic systems. Furthermore, during the rotation adjustment of the photovoltaic panel module 720 via the rotating node 730, the main cable 710 only acts as a support and does not participate in the rotation, thus ensuring that the main cable 710 maintains a stable tension support effect after being tensioned and fixed. The drive unit 30 is used to drive the rotating unit 20 to perform a rotational action relative to the fixed unit 10, and then the photovoltaic panel module 720 is smoothly rotated and adjusted by the support unit 40 fixedly connected to the rotating unit 20. The support base of the above structure is the main cable 710 rather than the column structure, which can be used in photovoltaic module installation scenarios with large spans, thereby improving the power generation efficiency of the flexible tracking photovoltaic system.

[0040] Furthermore, in the rotating node 730 provided in this embodiment of the invention, the rotational engagement of the fixed part 10 and the rotating part 20 is the basis for the smooth rotation of the support part 40. The fixed part 10 and the rotating part 20 can achieve rotational engagement through various structures. In some embodiments of the invention, the fixed part 10 and the rotating part 20 can achieve rotational connection through a sliding engagement, that is, the fixed part 10 and the rotating part 20 are partially stacked. The fixed part 10 is provided with a guide groove in the stacked area, and the rotating part 20 is provided with a protrusion to be inserted into the guide groove. The guide groove is an arc structure so that the movement process of the protrusion in the guide groove is an arc-shaped rotation process. On this basis, the driving part 30 applies a force to the rotating part 20 along the groove direction of the guide groove or at a non-perpendicular angle to the groove direction of the guide groove, which can realize the sliding of the protrusion in the guide groove, thereby satisfying the rotational action of the rotating part 20 relative to the fixed part 10.

[0041] It should be noted that the rotational connection between the fixed part 10 and the rotating part 20 can also be achieved by a structure such as a slide rail or slide path. The arrangement is similar to the matching method of the guide groove and the protrusion in the above embodiment, and will not be described again here.

[0042] To improve the connection between the fixed part 10 and the rotating part 20 and prevent the rotating part 20 from detaching from the fixed part 10 during rotation, in some embodiments of the present invention, the fixed part 10 and the rotating part 20 are arranged in a concentric ring structure. To facilitate the connection between the rotating part 20 and the support part 40, the fixed part 10 is preferably located in the inner ring of the concentric ring as a basic load-bearing structure, and the main cable 710 passes through the inner ring of the fixed plate and is connected to the fixed part 10. The rotating part 20 is located in the outer ring of the concentric ring so as to be directly connected to the support part 40 and other structures at its side wall or outer wall position. On this basis, a sliding bearing 60 is provided in the area where the fixed part 10 and the rotating part 20 are fitted together to realize the rotation setting of the fixed part 10 and the rotating part 20. Meanwhile, the sliding bearing 60 is preferably made of high-molecular plastic material, which has the effect of resisting chemical corrosion in outdoor environment and has a good resistance to various strong oxidants such as acids, alkalis and salts. At the same time, it has the characteristics of being lighter than metal, thereby reducing the load on the main cable 710 when the rotating node 730 is set on the main cable 710.

[0043] It should be noted that the concentric ring structure of the fixed part 10 and the rotating part 20 has a larger overlapping area, resulting in a more stable connection. At the same time, the fixed part 10 and the rotating part 20 are connected by a rotating bearing, which allows the rotating part 20 to make full contact with the outer wall of the fixed part 10 during rotation, without causing the rotating part to deviate or fall off. In addition, the entire structure of the rotating part 20 can rotate around the fixed part 10 as an axis, which allows the support part 40 to have a more flexible connection posture. That is, the support part 40 only needs to be fixed to any position on the rotating part 20 to satisfy the rotation effect of following the rotating part 20.

[0044] Based on the stable annular rotation structure achieved by the sliding bearing 60 described above, in some embodiments of the present invention, to improve the structural stability of the fixing part 10 and facilitate the stable installation of the main cable 710, the fixing part 10 specifically includes an inner ring frame 110 and a connecting beam 120. The inner ring frame 110 has a regular circular structure, and the two ends of the connecting beam 120 are fixedly disposed at two points on the inner wall of the inner ring frame 110, thereby strengthening the inner ring frame 110 through the supporting action of the connecting beam 120. Furthermore, the locking component 50 cooperates with the connecting beam 120 to lock the main cable 710, thus satisfying the fixed installation of the fixing part 10 on the main cable 710. Specifically, at least two main cables 710 pass through and abut against one side wall of the connecting beam 120, providing two connection points for the fixing part 10 to meet its fixed installation requirements.

[0045] It should be noted that, in the above embodiments, it is preferable that the two main cables 710 are fixed to the same sidewall of the connecting beam 120. For example, when the two main cables 710 are on the same horizontal plane relative to the ground, the connecting beam 120 is also horizontally positioned and placed at the bottom of the main cables 710. In addition, in order to enable the connecting beam 120 to provide a stable reinforcement effect on the inner ring frame 110 and to enable the two main cables 710 to provide stable support force to the connecting beam 120 and the fixing part 10, it is preferable that the connecting beam 120 passes through the center of the inner ring frame 110, that is, the connecting beam 120 is positioned along one diameter of the inner ring frame 110, and the two locking components 50 are symmetrically positioned on the connecting beam 120 about the midpoint of the connecting beam 120. The connecting beam 120 divides the inner ring frame 110 into two semi-circular structures, so that after the locking components 50 located on the connecting beam 120 are fixedly connected to the main cables 710, they can provide a more uniform and symmetrical support force to the fixing part 10 at two symmetrical points on the diameter structure.

[0046] Furthermore, corresponding to the fixing part 10 including the inner ring frame 110 structure, in some embodiments of the present invention, the rotating part 20 includes an outer ring frame 210 and a supporting beam 220. The outer ring frame 210 is sleeved on the outer periphery of the inner ring frame 110 to form a cavity structure with the inner ring frame 110 for the installation of the sliding bearing 60. Thus, after the fixing part 10 is fixedly installed, the rotating part 20 and the fixing part 10 can be rotated. The supporting beam 220 is fixedly installed on the outer wall surface of the outer ring frame 210. Its position can be through the plane of the outer ring frame 210 or tangential to the outer wall surface of the outer ring frame 210. The supporting beam 220 is used to support the supporting part 40 to achieve stable installation of the supporting part 40. With the help of the beam structure, the supporting part 40 can be fixed to the top surface of the supporting beam 220 by welding or bolting to meet the load-bearing requirements of the photovoltaic panel module 720.

[0047] It should be noted that since the rotation of the outer ring frame 210 is centered on the center of the inner ring frame 110, to ensure a more regular movement path for the rotating part 20, it is preferable that the supporting beam 220 and the outer ring frame 210 are disposed on the same plane, and the supporting beam 220 is tangent to the outer wall surface of the outer ring frame 210; furthermore, in the basic state, i.e., the assembled state when the rotating part 20 is not rotating, the supporting beam 220 is arranged parallel to the connecting beam 120 in the fixing part 10. Based on this, when the two main cables 710 pass through the same side of the connecting beam 120, the plane formed by the two main cables 710 is also parallel to the supporting beam 220. The supporting force exerted by the main cables 710 on the fixed part 10 and the rotating part 20 can be perpendicular to the supporting beam 220, so that the photovoltaic panel assembly 720 carried on its upper part remains parallel to the main cables 710; thereby, the supporting beam 220 maintains a stable bearing state and satisfies the stable support for the supporting part 40 and the photovoltaic panel assembly 720.

[0048] To further optimize the above technical solution, in some embodiments of the present invention, the outer ring frame 210 includes a semi-circular upper shell 2110 and a lower shell 2120, so as to improve the ease of assembly between the outer ring frame 210 and the inner ring frame 110 through the split structure of the upper shell 2110 and the lower shell 2120. At the same time, the splicing area of ​​the upper shell 2110 and the lower shell 2120 is provided with corresponding protrusions. The protrusion structure is based on the outer wall of the outer ring frame 210 protruding in a direction away from its center. After the protrusions of the upper shell 2110 and the lower shell 2120 are joined, a through hole is opened, and they are fixedly connected into an integral structure by bolts. The split assembly structure of the upper housing 2110 and the lower housing 2120 allows the inner ring frame 110 and the sliding bearing 60 to be integrated into the lower housing 2120 after the sliding bearing 60 is fitted onto the outer periphery of the inner ring frame 110. The semi-circular structure of the lower housing 2120 allows the integrated structure of the inner ring frame 110 and the sliding bearing 60 to be directly inserted. After the integrated structure of the inner ring frame 110 and the sliding bearing 60 is in place, the upper housing 2110 and the lower housing 2120 are then connected and fixed with bolts, thus achieving convenient assembly of the rotating part 20, the fixed part 10 and the sliding bearing 60.

[0049] It should be noted that, based on the above structure, the supporting beam 220 can be pre-assembled with the upper housing 2110 as an integral structure, and its installation is completed when the upper housing 2110 and the lower housing 2120 are assembled with bolts. Furthermore, the upper housing 2110 and the lower housing 2120 are fixed in the mating area on one side by at least two spaced bolts to improve the stability of their connection structure and avoid the risk of separation caused by the force exerted by the sliding bearing 60 on the upper housing 2110 and the lower housing 2120 during rotation.

[0050] Since the supporting beam 220 is in direct contact with the supporting part 40, its structural stability is the basis for the supporting part 40 to provide effective support for the photovoltaic panel module 720. Therefore, in some embodiments of the present invention, the rotating part 20 also includes a reinforcing beam 230 to provide structural reinforcement to the supporting beam 220 and to rotate synchronously with the supporting beam 220. Specifically, the two ends of the reinforcing beam 230 are fixedly connected to the outer wall surface of the outer ring frame 210 and the supporting beam 220, respectively, which can be achieved by welding or bolting. Since the supporting beam 220 and the outer ring frame 210 are tangentially connected, after the reinforcing beam 230 is provided, a single reinforcing beam 230 can form a closed small frame structure with the outer ring frame 210 and the supporting beam 220, so that the supporting beam 220 has stronger structural stability. It should also be noted that the closed frame structure formed by the reinforcing beam 230, the outer ring frame 210, and the supporting beam 220 can be increased by increasing the number of reinforcing beams 230, thereby correspondingly improving the reinforcement effect of the supporting beam 220.

[0051] Furthermore, to balance the production cost and reinforcement effect of the rotating node 730, in a specific embodiment of the present invention, two reinforcing beams 230 are provided, and the two reinforcing beams 230 are symmetrically arranged about the outer ring frame 210. It should also be noted that in this embodiment, the supporting beam 220 is also symmetrically arranged about the outer ring frame 210. Specifically, the supporting beam 220 is tangent to the outer wall surface of the outer ring frame 210, and the supporting beam 220 is symmetrical about its tangent point on the outer ring frame 210. The length of the supporting beam 220 on both sides of the tangent point is equal. Since the two reinforcing beams 230, which are also symmetrically arranged about the outer ring frame 210, need to be connected to the supporting beam 220 respectively, they also need to be symmetrical about the tangent point of the supporting beam 220 on the outer ring frame 210. The supporting beam 220 and the outer ring frame 210 can form two symmetrical closed frame structures with equal areas, so that the two ends of the supporting beam 220 away from the tangent point also have a connection base, thus enabling stable support for the support part 40.

[0052] Furthermore, in the rotating node 730 provided in the embodiments of the present invention, the driving unit 30 can be a power component such as a motor or hydraulic cylinder that drives the rotating unit 20 to generate relative motion with the fixed unit 10. In some embodiments of the present invention, in order to reduce the production cost of the rotating node 730, the driving unit 30 adopts an electric push rod 310 with low cost and simple operation process, so that the rotation process of the rotating node 730 is stable and effective. Specifically, the electric actuator 310 includes a base 3110 and a telescopic rod 3120. The base 3110 is rotatably mounted on the connecting beam 120, which can be achieved by a structure such as a pin, hinge, or bearing. In a specific embodiment of the present invention, the end of the base 3110 is an annular groove, while a protruding shaft structure is provided on one side of the connecting beam 120. The annular groove of the base 3110 is fitted around the outer periphery of the protruding shaft to achieve a rotatable connection between the two. Here, the protruding shaft is located on one side wall of the connecting beam 120 parallel to the inner ring frame 110, so that the driving part 30 can deviate from the fixed part 10 and the rotating part 20 and apply a force to the rotating part 20 from one side. The telescopic rod 3120 of the electric push rod 310 includes an actuating end located away from the base 3110. The actuating end is rotatably mounted on the support beam 220. It can also be rotatably mounted through the cooperation structure of the protruding shaft and the annular groove, which will not be described in detail here. When the telescopic rod 3120 changes length, the electric push rod 310 can generate a component force at the actuating end of the telescopic rod 3120 through the rotational action and position fixation effect with the connecting beam 120, thereby pushing the support beam 220 to rotate to meet the length change of the electric push rod 310. Based on this, by adjusting the extension and retraction of the telescopic rod 3120, the clockwise and counterclockwise rotation of the support beam 220 based on the fixed part 10 can be realized.

[0053] It should be further explained that the purpose of the electric actuator 310 is to generate a force along the rotation direction on the supporting beam 220 and the rotating part 20 by changing its length and using the positional fixation effect of the fixing part 10, thereby satisfying the rotation drive of the rotating part 20. The electric actuator 310 can be arbitrarily set as long as it satisfies the force distribution effect along the rotation direction of the rotating part 20. For example, the electric actuator 310 can be set perpendicular to the connecting beam 120, and the connection point between the electric actuator 310 and the connecting beam 120 is offset from the midpoint of the connecting beam 120, so that the connection point between the electric actuator 310 and the supporting beam 220 is offset from the tangent point between the supporting beam 220 and the outer ring frame 210. In this case, the electric actuator 310 can provide a force distribution effect to drive the rotating part 20 to perform rotational action when the telescopic rod 3120 extends and retracts.

[0054] In other embodiments of the present invention, the base 3110 is rotatably disposed on the connecting beam 120 in the length direction and offset from the midpoint; at the same time, the connection point of the telescopic rod 3120 on the supporting beam 220 is also offset from the midpoint of the supporting beam 220, so that the electric push rod 310 can realize rotational drive of the rotating part 20, without making the drive arm too short or disappearing and difficult to drive.

[0055] Furthermore, in the rotating node 730 provided in this embodiment of the invention, the support portion 40 can be a frame structure and fixedly mounted on the support portion 40 in an integrated structure. Alternatively, the support portion 40 can be a multi-part beam structure, each overlapping and fixed to the support beam 220. In some embodiments of the invention, the support portion 40 includes at least two parallel and spaced-apart support purlins 410. It should be noted that the at least two parallel and spaced-apart support purlins 410 are used to simulate the parallel structure of the main cable 710, providing a stable support foundation for the photovoltaic panel assembly 720. The two support purlins 410 can be connected into an integrated structure by multiple reinforcing ribs perpendicular to the support purlins 410, or they can be two separate support purlin structures, each fixedly mounted on the support beam 220. The support purlins 410 are parallel to the main cable 710, so that the photovoltaic panel assembly 720, which can be smoothly assembled onto the main cable 710, can also be installed on the support purlins 410.

[0056] It should be noted that the support purlin 410 structure can save material usage in the support part 40 and reduce the production cost of the rotating node 730. At the same time, in order to ensure the support stability of the support part 40 while saving materials, in some embodiments of the present invention, the support purlin 410 is a U-shaped beam to have good rigidity. In addition, the open sides of two adjacent support purlins 410 are arranged facing each other, so that when the two adjacent support purlins 410 are reinforced in the middle, they can form a stable truss structure and have a tendency to deform towards the opposite inward side when deformed. This avoids the problem of the two support purlins 410 deforming towards the same side when subjected to accidental force, which could lead to the photovoltaic panel module 720 falling off.

[0057] Furthermore, this embodiment of the invention also provides a flexible tracking photovoltaic system, which includes a photovoltaic panel assembly 720 and a photovoltaic support provided in any of the above embodiments. The photovoltaic panel assembly 720 is disposed on the photovoltaic support to achieve the function of tracking light. It should be noted that since the photovoltaic support has the technical effects provided by the above embodiments, the flexible tracking photovoltaic system also has the above technical effects, which will not be repeated here.

[0058] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0059] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0060] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed, and is not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. The scope of the invention is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the present invention.

Claims

1. A photovoltaic support structure, characterized in that, include: Two sets of end columns are installed at intervals. Two main cables are arranged in parallel and fixed to the end column. Multiple rotating nodes are arranged at intervals on the two main cables. The rotating nodes are used to support the photovoltaic panel module and drive the photovoltaic panel module to rotate based on the main cables. The rotating node includes a fixed part, a rotating part, and a supporting part. The fixed part is fixedly mounted on the main cable. The rotating part is rotatably connected to the fixed part, and the fixed part and the rotating part have a concentrically nested annular structure. A sliding bearing is provided in the nested area of ​​the fixed part and the rotating part. The supporting part is fixedly connected to the rotating part and is directly connected to the photovoltaic panel assembly. During the rotation adjustment of the photovoltaic panel, the fixed part and the main cable remain in a fixed position, while the rotating part rotates relative to the fixed part. The wind-resistant cable and wind-resistant frame are provided. The wind-resistant cable is arranged along the length of the main cable and is connected to the main cable as an integral structure by a number of wind-resistant frames.

2. The photovoltaic support structure as described in claim 1, characterized in that, The fixing part is fixedly mounted on the main cable by a locking component, and the locking component is provided in a one-to-one correspondence with the main cable.

3. The photovoltaic support structure as described in claim 1, characterized in that, It also includes a drive unit, which is disposed on the fixed part and is connected to the rotating part in a transmission manner. The drive unit is used to output power to drive the rotating part to rotate relative to the fixed part.

4. The photovoltaic support structure as described in claim 1, characterized in that, The wind-resistant cable is set on the symmetrical plane of two adjacent main cables, and the wind-resistant frame is a triangular structure and is fixedly connected to the two main cables and the single wind-resistant cable at three vertices.

5. The photovoltaic support structure as described in claim 1, characterized in that, Several intermediate columns are provided between the two sets of end columns. The intermediate columns are located on the path of the main cable and are fixedly connected to the main cable.

6. The photovoltaic support structure as described in claim 5, characterized in that, The vertical dimension of the wind-resistant frame in the middle area of ​​the end columns and the middle columns of a single group is larger than that of the other wind-resistant frames.

7. The photovoltaic support structure as described in claim 2, characterized in that, The fixing part also includes an inner ring frame and a connecting beam. The connecting beam is arranged through the center of the inner ring frame, and the locking component cooperates with the connecting beam to form a connecting hole for the main cable to pass through. The rotating part further includes an outer ring frame and a supporting crossbeam. The supporting crossbeam is fixedly disposed on the outer wall surface of the outer ring frame and is arranged parallel to the connecting beam. The supporting part is fixedly disposed on the supporting crossbeam.

8. The photovoltaic bracket as described in claim 7, characterized in that, The rotating part also includes a reinforcing beam, the two ends of which are fixed to the outer wall of the outer ring frame and the supporting beam, respectively, and at least two reinforcing beams are symmetrically arranged about the outer ring frame.

9. The photovoltaic bracket as described in claim 7, characterized in that, It also includes a drive unit, which is an electric push rod with its two ends hinged to the fixed part and the rotating part, respectively. The electric push rod includes a base and a telescopic rod. The base is rotatably mounted on the connecting beam, and the actuating end of the telescopic rod is rotatably mounted on the supporting crossbeam.

10. The photovoltaic support structure as described in claim 1, characterized in that, The support portion includes at least two parallel and spaced-apart support purlins, which are parallel to the main cable and used to support the photovoltaic panel assembly. The support purlins are U-shaped beams, and the opening sides of two adjacent support purlins face each other.

11. A flexible tracking photovoltaic system, characterized in that, The device includes a photovoltaic panel assembly and a photovoltaic support as described in any one of claims 1-8, wherein the photovoltaic panel assembly is disposed on the rotation node of the photovoltaic support to drive the photovoltaic panel assembly to perform rotational movement relative to the main cable via the rotation node.

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