Photovoltaic tracking support and integrated photovoltaic system

Abstract

The application relates to the technical field of photovoltaic devices, and discloses a photovoltaic tracking support and an integrated photovoltaic system. The photovoltaic tracking support comprises a base, a rotary connecting structure, a support frame and an assembly mounting portion. The rotary connecting structure comprises a ring track arranged on the base, a movable mechanism matched with the ring track and capable of rotating along the ring track, and a first driving mechanism. The support frame is arranged on the movable mechanism, and the first driving mechanism is used for driving the support frame to rotate around a vertical axis relative to the base, so as to adjust the azimuth angle of a photovoltaic assembly. The assembly mounting portion comprises a supporting structure, a main shaft, a purlin and a second driving mechanism. The supporting structure is arranged on the support frame, the main shaft is used for mounting the photovoltaic assembly through the purlin, and the second driving mechanism is used for driving the main shaft to rotate, so as to adjust the pitch angle of the photovoltaic assembly. The design of the application is beneficial to simplifying the structure of the rotary connecting part and realizing the adjustment of the azimuth angle and the pitch angle of the photovoltaic assembly.

Description

Technical Field

[0001] This application relates to the field of photovoltaic equipment technology, and further to a photovoltaic tracking bracket and an integrated photovoltaic system. Background Technology

[0002] The connection between the upper load-bearing structure and the lower rotating part of a dual-axis tracking bracket is often quite complex. Common connection methods include using large slewing bearings or complex flange structures. This not only increases the precision requirements for component manufacturing but also makes on-site installation and leveling adjustments cumbersome, impacting construction efficiency. Furthermore, the main beams or frame structures used to support photovoltaic modules often require increased wall thickness or the use of high-strength profiles to meet stiffness requirements under wind and snow loads, leading to increased steel consumption and higher costs. Summary of the Invention

[0003] To address the aforementioned technical issues, the purpose of this application is to provide a photovoltaic tracking bracket and an integrated photovoltaic system, which helps to reduce the footprint of the power generation unit and improve structural compactness.

[0004] To achieve the above objectives, this application provides a photovoltaic tracking bracket for supporting photovoltaic modules, comprising: Base; A rotary connection structure includes a ring track, a movable mechanism, and a first drive mechanism. The ring track is disposed on the base. The movable mechanism is configured to cooperate with the ring track and can rotate along the ring track. A support frame is disposed on the movable mechanism, and the first drive mechanism is pulsatorically connected to at least a portion of the movable mechanism and / or the support frame, for driving the support frame to rotate relative to the base about a vertical axis to adjust the azimuth angle of the photovoltaic module; The component mounting section includes a support structure, a main shaft, purlins, and a second drive mechanism for supporting the main shaft. The support structure is disposed on the support frame. The main shaft mounts the photovoltaic module through the purlins. The output end of the second drive mechanism is adapted to be connected to the main shaft for transmission to drive the main shaft to rotate, thereby adjusting the pitch angle of the photovoltaic module.

[0005] In some embodiments, the support frame includes a first support member and at least two second support members, the at least two second support members being arranged circumferentially spaced along the rotary connection structure; The first support member spans and connects to the top region of the at least two second supports members, and the component mounting portion is disposed on the first support member or a mounting structure connected to the first support member.

[0006] In some embodiments, the support frame further includes a third support member; the third support member is connected to one end of the at least two second support members near the base, and the third support member extends along the trajectory of the annular track; the first support member, the second support member, and the third support member cooperate to form the main frame of the support frame, and at least part of the rotary connection structure is disposed between the third support member and the base.

[0007] In some embodiments, the support frame further includes diagonal bracing members, and the diagonal bracing members are arranged within the support frame in at least one of the following ways: The diagonal brace is inclinedly connected between the first support and the third support; The diagonal brace is connected between the second support and the third support; The diagonal brace is connected between at least two adjacent second supports, and the two second supports have different tilt angles relative to the vertical direction to form a triangular support within the support frame.

[0008] In some embodiments, when the diagonal brace is connected between the first support and the third support, there are multiple diagonal braces, and they are connected to the first support along the length direction of the first support. The first ends of at least two of the diagonal braces are connected to the same position on the first support member, and the second ends of at least two of the diagonal braces are respectively fixed to different connection positions on the third support member. The connection positions are symmetrically distributed around the first support member as an axis in the circumferential position of the third support member.

[0009] In some embodiments, the third support member is provided with a first connecting portion and a second connecting portion; the first connecting portion is provided on the side of the third support member opposite to the base, and the bottom of the second support member is connected to the first connecting portion; The second connecting part is disposed on the circumferential side of the third support member or on the side facing the base. The rotary connection structure is at least partially connected to the second connecting part and can form a rotational fit with the base.

[0010] In some embodiments, the third support member includes a plurality of splicing units arranged sequentially along the circumferential direction; each splicing unit includes a first mating edge and a second mating edge, the first mating edge and the second mating edge being respectively on both sides of the splicing unit along the circumferential direction; between two adjacent splicing units along the circumferential direction, the first mating edge of one splicing unit abuts against the second mating edge of the other splicing unit; the first mating edge and the second mating edge are locked together by a locking structure, so that the plurality of splicing units are assembled to form the third support member.

[0011] In some embodiments, the first mating edge and the second mating edge within the splicing unit both extend radially along the third support member, and the extension lines of the first mating edge and the second mating edge converge at the rotation center of the third support member. The splicing unit further includes an inner connecting beam and an outer connecting beam; the inner connecting beam is connected between the first mating edge and the second mating edge on the side closer to the center of rotation; the outer connecting beam is connected between the first mating edge and the second mating edge on the side farther from the center of rotation.

[0012] In some embodiments, each splicing unit further includes at least one reinforcing beam, at least a portion of which is radially disposed between the inner connecting beam and the outer connecting beam; wherein, the two ends of the reinforcing beam are respectively fixedly connected to the first mating edge and the second mating edge; And / or, the first connecting portion and the second connecting portion are respectively arranged on opposite sides of the outer connecting beam along the height direction.

[0013] In some embodiments, the movable mechanism includes a plurality of vertical rollers that roll against the top surface of the annular track, and at least one of the plurality of vertical rollers is connected to the first drive mechanism; And / or, the movable mechanism includes a plurality of lateral rollers that roll against the sidewall of the annular track to limit the radial displacement of the support frame relative to the base; And / or, the movable mechanism includes multiple gears, and the annular track is provided with meshing portions that mate with the tooth surfaces of the gears on the side facing the movable mechanism; the first drive mechanism is connected to at least one of the gears to drive the gears to roll along the annular track, thereby causing the support frame to rotate around the vertical axis.

[0014] In some embodiments, the base includes a support structure corresponding to the receiving space for supporting the electrical equipment; And / or, the base is provided with a fixing structure for fixing the base to the mounting base; the fixing structure includes a group of clamping members, pads, and fastening members, the outer edge of the base extends radially to at least one side to form an extension edge, the clamping member presses against one side of the extension edge, the pad abuts against the other side of the extension edge, and the fastening member passes through the clamping member and the pad and is anchored to the mounting base, thereby clamping the extension edge by the clamping member and the pad to fix the base to the mounting base.

[0015] In some embodiments, the support frame forms a receiving space with the base on the side near the base for accommodating electrical equipment; a preset clearance is maintained between the electrical equipment in the receiving space and the support frame.

[0016] Another aspect of this application also provides an integrated photovoltaic system, comprising: At least one of the photovoltaic tracking brackets in any of the above embodiments; Several photovoltaic modules are mounted on the main shaft along its length. The electrical equipment includes an energy storage cabinet and / or an inverter, and the photovoltaic modules are electrically connected to the electrical equipment.

[0017] Compared with the prior art, this application has at least the following beneficial effects: 1. This application uses a support frame directly mounted on the movable mechanism of the slewing connection structure, instead of employing a traditional centralized slewing bearing connection. The wind load, snow load, and self-weight of the photovoltaic module are sequentially transferred through the module mounting section and the support frame to the movable mechanism, and then from the movable mechanism to the circular track and base. This force transmission path is intuitive and clear, avoiding stress concentration. During installation, construction personnel only need to lock the support frame and movable mechanism together with connectors to easily complete the assembly of the support frame and the slewing connection structure. Simultaneously, by adjusting the connection position between the support frame and the movable mechanism, the levelness of the support frame can be easily calibrated on-site, significantly reducing construction difficulty and installation time.

[0018] 2. The support frame in this application adopts a frame structure consisting of a first support member and at least two second support members, wherein the at least two second support members are arranged circumferentially at intervals along the rotary connection structure, and the first support member spans and connects to the top area of ​​the at least two second support members. This structural form has high bending and lateral stiffness in terms of material mechanics. Compared with the traditional single column, the frame structure consisting of the second support member and the first support member can effectively resist the bending moment and horizontal shear force generated by the photovoltaic modules when adjusting their pitch or bearing wind loads, reducing the horizontal displacement and torsional deformation at the top of the support frame. At the same time, combined with reinforcing components such as diagonal braces, the overall structural stability can be significantly improved without significantly increasing the amount of steel used, enabling it to support long-span main shafts or multiple photovoltaic module arrays, which is conducive to reducing steel consumption per unit power and achieving a balance between cost control and structural safety. Attached Figure Description

[0019] The preferred embodiments will now be described in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of this application.

[0020] Figure 1This is a schematic diagram of the overall structure of an integrated photovoltaic system in one embodiment of this application; Figure 2 This is a schematic diagram of the structure of a photovoltaic tracking bracket that houses electrical equipment in one embodiment of this application; Figure 3 This is a schematic diagram of the structure of a photovoltaic tracking bracket without housing electrical equipment in one embodiment of this application; Figure 4 This is a top view of a photovoltaic tracking bracket in one embodiment of this application; Figure 5 This is a disassembled diagram of the main structure of a photovoltaic tracking bracket in one embodiment of this application; Figure 6 yes Figure 2 A schematic diagram of the local structure at point A in the middle; Figure 7 This is a schematic diagram of a photovoltaic tracking bracket carrying a photovoltaic module in one embodiment of this application; Figure 8 This is a disassembled diagram of the main structure of a photovoltaic tracking bracket in one embodiment of this application; Figure 9 This is a schematic diagram of the bottom structure of a photovoltaic tracking bracket in one embodiment of this application; Figure 10 This is an exploded view of the bottom structure of a photovoltaic tracking bracket in one embodiment of this application; Figure 11 This is a top view of a photovoltaic tracking bracket in one embodiment of this application; Figure 12 , Figure 13 These are partial structural schematic diagrams of a photovoltaic tracking bracket in one embodiment of this application; Figure 14 This is a schematic diagram of the fixed structure in one embodiment of this application; Figure 15 This is a schematic diagram of the structure of a circular track in one embodiment of this application.

[0021] Reference numerals: Base 10; Support structure 11; Extension edge 12; Fixing structure 13; Clamping element 131; Fastening component 132; Pad 133; Rotary connection structure 20; Circular track 21; Flange 211; Engaging part 212; Movable mechanism 22; Vertical roller 221; Lateral roller 222; Gear 223; First drive mechanism 23; Support frame 30; First support member 31; Second support member 32; Third support member 33; First connecting part 331; Second Connecting part 332; splicing unit 333; first mating edge 3331; second mating edge 3332; clamping member 3333; inner connecting beam 3334; outer connecting beam 3335; reinforcing beam 3336; inner connecting plate 3337; third connecting part 334; fourth connecting part 335; fifth connecting part 336; diagonal brace 34; component mounting part 40; support structure 41; second drive mechanism 42; accommodating space 50; photovoltaic module 60; electrical equipment 70; main shaft 80. Detailed Implementation

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0023] To keep the drawings concise, each drawing only schematically shows the parts relevant to the application; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" can mean not only "only one" but also "more than one."

[0024] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0025] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] In existing dual-axis tracking brackets, the connection between the upper load-bearing structure and the lower rotating part is often quite complex. Common connection methods include using large slewing bearings or complex flange structures. These structures increase the precision requirements for the machining of related components and make on-site installation and leveling adjustments more cumbersome, thus affecting construction efficiency. Meanwhile, the main beams or frame structures used to support photovoltaic modules typically require increased wall thickness or the use of high-strength profiles to meet stiffness requirements under wind and snow loads, leading to increased steel consumption and higher costs.

[0029] To address the above problems, in one embodiment, reference is made to the appendix to the specification. Figures 1 to 3 This application provides a photovoltaic tracking bracket, including a base 10, a swivel connection structure 20, a support frame 30, and a module mounting part 40. The swivel connection structure 20 is disposed on the base 10, and the support frame 30 is disposed on the base 10 via the swivel connection structure 20 and can rotate relative to the base 10 about a vertical axis. A circumferentially extending swivel path is formed between the support frame 30 and the base 10. When adjusting the azimuth angle of the photovoltaic module 60, the support frame 30 rotates about a vertical axis, causing the photovoltaic module 60 to rotate about a vertical axis by a rotation angle of 360 degrees, allowing the photovoltaic module 60 to be adjusted to any azimuth.

[0030] A module mounting section 40 is located on the side of the support frame 30 opposite to the base 10, and is used to mount the photovoltaic module 60. The module mounting section 40 allows the photovoltaic module 60 to rotate relative to the support frame 30 around a horizontal axis, thereby adjusting the pitch angle of the photovoltaic module 60. Through the above configuration, the photovoltaic module 60 can adjust its attitude in both the horizontal and pitch directions to adapt to different lighting conditions at different times of day.

[0031] Among them, such as Figure 5 and Figure 6 As shown, the rotary connection structure 20 includes an annular track 21, a movable mechanism 22, and a first drive mechanism 23. The annular track 21 is disposed on the base 10, forming a circumferentially extending rotary guide structure on the base 10. The movable mechanism 22 is disposed at the bottom of the support frame 30, and the movable mechanism 22 cooperates with the annular track 21. In some embodiments, the base 10 has a groove extending into the support frame 30, the annular track 21 is disposed in the groove, at least a portion of the movable mechanism 22 is located in the groove, and the opposite side walls of the groove are used to limit the movable mechanism 22, preventing the movable mechanism 22 from radially deviating along the annular track 21.

[0032] The first drive mechanism 23 is connected to at least part of the movable mechanism 22 and / or the support frame 30 for providing driving force for the rotational movement of the support frame 30. When the first drive mechanism 23 is working, the driving force acts on the annular track 21 through the movable mechanism 22, enabling the support frame 30 to move along the annular track 21, thereby driving the support frame 30 to rotate relative to the base 10 around the vertical axis, realizing the azimuth angle adjustment of the support frame 30.

[0033] In a specific implementation, multiple movable mechanisms 22 can be configured and arranged at intervals along the circumferential direction of the bottom of the support frame 30. The first drive mechanism 23 is connected to at least one of the movable mechanisms 22 (e.g., a roller). When the first drive mechanism 23 outputs driving force, the movable mechanism 22 moves along the circular track 21 and drives the other movable mechanisms 22 to move synchronously through the overall structure of the support frame 30, thereby realizing the overall rotation of the support frame 30 along the circular track 21. In this embodiment, the rotation of the support frame 30 is achieved by a small number of drive mechanisms, the overall structure is relatively simple, and the energy consumption is also low.

[0034] In another specific embodiment, the first drive mechanism 23 can also be directly connected to the support frame 30 for transmission. In this case, the movable mechanism 22 can reduce friction and guide, for example, by using rollers, pulleys or slide rails. This part of the structure is connected to the annular track 21, so that the support frame 30 can complete the rotation under the constraint of the annular track 21.

[0035] like Figure 10 As shown, in some embodiments, the first drive mechanism 23 adopts a horizontal drive device, thereby reducing the space occupied by the rotary drive structure in the height direction, which is beneficial to reducing the overall structural height.

[0036] Thus, in this application, the azimuth rotation between the support frame 30 and the base 10 is achieved through the cooperation of the annular track 21 and the movable mechanism 22, and the first drive mechanism 23 is used to provide the rotation driving force. Compared with the design of the prior art, the rotation part in this embodiment is mainly concentrated at the annular track 21 and the movable mechanism 22, which facilitates assembly and adjustment around this part.

[0037] In some embodiments, the support frame 30, near the base 10, forms a receiving space 50 with the base 10. This receiving space 50 is used to receive the electrical equipment 70. The electrical equipment 70 is disposed within the rotation coverage area of ​​the support frame 30, that is, when the support frame 30 rotates, the electrical equipment 70 can be enveloped within the area covered by the movement trajectory. Thus, during the rotation of the support frame 30, a preset clearance is maintained between the electrical equipment 70 in the receiving space 50 and the support frame 30, thereby preventing interference between the support frame 30 and the electrical equipment 70 during rotation.

[0038] Understandably, through the arrangement in this embodiment, the electrical equipment 70 can be arranged in the space between the support frame 30 and the base 10, thereby reducing the additional land requirements caused by the electrical equipment 70 occupying a separate site. During the azimuth rotation of the support frame 30, since a stable clearance is reserved in the accommodating space 50, there will be no collision between the electrical equipment 70 and the support frame 30. This helps to improve the overall integration of the power generation unit while ensuring the tracking function of the photovoltaic tracking bracket, making the system layout more compact, and also facilitating on-site construction and subsequent maintenance.

[0039] It should be noted that in some embodiments, such as Figure 5 As shown, the base 10 includes a support structure 11, which is disposed corresponding to the receiving space 50 and is used to support the electrical equipment 70 housed therein. The support structure 11 can be configured in different forms according to actual application requirements. For example, it can be configured as a groove-shaped structure formed on the base 10, with the bottom of the electrical equipment 70 housed within the groove-shaped structure; or it can be configured as a support plate located within the receiving space 50, with the electrical equipment 70 placed directly on the support plate. By supporting the electrical equipment 70 with the support structure 11, a relatively stable equipment installation position can be formed on the base 10, facilitating the arrangement and positioning of the electrical equipment 70.

[0040] In other embodiments, no specific supporting structure 11 is provided in the area corresponding to the accommodating space 50. For example, in cases where the ground is relatively flat, such as... Figure 7As shown, the base 10 can be configured as a hollow structure in the corresponding area of ​​the accommodating space 50. The electrical equipment 70 can be placed directly on the ground through the hollow structure, and the ground supports the electrical equipment 70. In this case, the base 10 is mainly used to provide an installation foundation for the rotary connection structure 20, without the need to support the electrical equipment 70, thereby simplifying the structural form of the base 10 and reducing the complexity of manufacturing and construction.

[0041] In one embodiment, see Appendix Figure 2 The component mounting section 40 is located on the top of the support frame 30. The component mounting section 40 includes a support structure 41, a second drive mechanism 42, a main shaft, and purlins. The support structure 41 and the second drive mechanism 42 are mounted on the support frame 30, and the output end of the second drive mechanism 42 is adapted to be connected to the main shaft for transmission to drive the main shaft to rotate. The main shaft mounts the photovoltaic modules through the purlins, thereby driving the photovoltaic modules 60 mounted on the main shaft to achieve pitch angle adjustment. For example, the support structure 41 is a bearing and bearing housing, and the second drive mechanism 42 is a structure such as a motor, reducer, or worm gear.

[0042] The spindle can be a single shaft or a combination of multiple shafts. The two ends or the middle of the spindle can be supported by support structures 41 to ensure the rotational stability of the spindle. Accordingly, the support structure 41 can adopt a bearing housing or similar structural form to constrain the radial and axial positions of the spindle while ensuring its rotation.

[0043] In one embodiment, such as Figure 3 As shown, the support frame 30 includes a first support member 31 and at least two second support members 32. The at least two second support members 32 are arranged at circumferential intervals along the rotary connection structure 20, with each second support member 32 corresponding to a different circumferential position on the rotary path. In some embodiments, the interval between adjacent second support members 32 on the rotary connection structure 20 is the same; that is, when arranging the second support members 32, the rotary connection structure 20 is first divided equally according to the number of second support members 32, and then the second support members 32 are installed at the equally divided positions, making the support frame 30 structurally symmetrical, which helps to improve the stability of the support frame 30.

[0044] The first support member 31 spans and connects to the top region of at least two second support members 32, connecting each second support member 32 into a single unit in the upper region, thus forming a stable overall frame structure for the support frame 30. When the support frame 30 rotates around its vertical axis, each second support member 32 moves synchronously along the rotation path with the support frame 30 as a whole, ensuring the stability of the structure to a certain extent.

[0045] The first support member 31 extends in a direction parallel to the radial direction of the rotation path, and the center of the rotation path is located on the vertical axis of symmetry of the first support member 31. The module mounting part 40 is disposed on the first support member 31 or on a mounting structure connected to the first support member 31. The photovoltaic module 60 is mounted on the upper region of the support frame 30 through the module mounting part 40 and can rotate relative to the support frame 30 around a horizontal axis to achieve pitch angle adjustment. During the rotation of the photovoltaic module 60, a preset clearance is maintained between the photovoltaic module 60 and the support frame 30 at each tilt angle position to reduce the probability of interference with the support frame 30.

[0046] Understandably, in some embodiments, the second support member 32 is configured as two members, arranged circumferentially opposite each other along the rotation path, with the first support member 31 spanning and connecting the top region of the two second support members 32. For example... Figure 3 As shown, the two second support members 32 are located in opposite radial positions. During the rotation of the support frame 30, the two second support members 32 serve as the main support points. The first support member 31 is located in the upper region to form a transverse connection structure, so that the photovoltaic module 60 maintains a relatively balanced force state during azimuth rotation and pitch adjustment.

[0047] In other embodiments, such as Figure 8 As shown, the second support member 32 is configured as three or more, and the multiple second support members 32 are arranged at circumferential intervals along the rotation path. The first support member 31 spans and connects to the top area of ​​each second support member 32. At this time, the support frame 30 is supported by multiple circumferential positions during rotation.

[0048] It should be noted that in this application, the setting angle of the second support member 32 relative to the vertical direction is not limited to a vertical state. Depending on factors such as the overall height of the support frame 30 and the structural stress requirements, the second support member 32 can be set at different tilt angles, and the tilt angles between different second support members 32 can also be different, thereby forming support frames 30 with different structural profiles.

[0049] In one embodiment, such as Figures 3 to 5 As shown in the figure, the support frame 30 also includes a third support member 33. Referring to the figure, the third support member 33 is connected to the end of the second support member 32 near the base 10, and the third support member 33 extends along the trajectory of the rotation path. The first support member 31, the second support member 32 and the third support member 33 work together to form the main frame of the support frame 30.

[0050] At least a portion of the rotary connection structure 20 is disposed between the third support member 33 and the base 10. In other words, certain structural components for enabling movement, sliding, or rolling can be configured on the third support member 33. Thus, the relative mating area between the support frame 30 and the base 10 is expanded by the third support member 33 at the bottom of the support frame 30, facilitating the deployment and installation of the corresponding structures. The structural components for enabling movement, sliding, or rolling are spaced apart on the third support member 33, and these structural components move, slide, or roll along the rotary path.

[0051] It should be noted that in this embodiment, the third support member 33 is a continuous ring structure extending circumferentially, thereby enabling a relatively complete ring-shaped docking area to be formed at the bottom of the support frame 30; however, in other embodiments, the third support member 33 may also be a discontinuous arc-shaped structure extending along the rotation path, thereby enabling several discrete and independent docking ends to be formed at the bottom of the support frame 30, and the vertical axis of the third support member 33 overlaps with the axis of the rotation path. Technicians can adjust or modify this part of the structure based on specific needs.

[0052] On the other hand, the slewing connection structure 20 is located close to the third support member 33, that is, the lower area of ​​the support frame 30. When it is necessary to install, inspect or maintain the slewing connection structure 20, the lower area of ​​the support frame 30 can be operated without affecting the installation status of the upper components, which improves the rationality of the structural layout.

[0053] In one embodiment, see Appendix Figure 6 The third support member 33 is provided with a first connecting part 331 and a second connecting part 332. The first connecting part 331 is provided on the side of the third support member 33 away from the base 10, and the bottom of the second support member 32 is connected to the first connecting part 331. In other words, the second support member 32 can be connected to the third support member 33 through the first connecting part 331.

[0054] The second connecting part 332 is provided on the circumferential side of the third support member 33, or on the side of the third support member 33 facing the base 10. The rotary connecting structure 20 is at least partially connected to the second connecting part 332 and forms a cooperation with the base 10 through the second connecting part 332.

[0055] In specific implementations, in some embodiments, the first connecting portion 331 and / or the second connecting portion 332 are integrally formed with the third support member 33. Specifically, during the manufacturing process of the third support member 33, a structure for connecting the second support member 32 or the rotary connection structure 20 can be directly formed at its corresponding position. For example, assembly holes, mounting grooves, or locally thickened areas are pre-machined on the third support member 33. When the support frame 30 is assembled, the bottom of the second support member 32 or the corresponding structure of the rotary connection structure 20 is connected to the third support member 33 through the assembly holes, mounting grooves, etc.

[0056] In other embodiments, the first connecting part 331 and / or the second connecting part 332 are separately formed from the third support member 33. During the assembly of the support frame 30, they are connected to the third support member 33 by welding, bolting, or other methods to form corresponding connection structures. For example, the first connecting part 331 is pre-installed with the second support member 32, and the second connecting part 332 is pre-installed with the rotary connection structure 20. The first connecting part 331, the second connecting part 332, and the third support member 33 have through holes. When installing the photovoltaic tracking bracket, the bolts are sequentially passed through the through holes of the first connecting part 331, the third support member 33, and the second connecting part 332 and tightened to complete the installation, improving installation efficiency. Based on the above embodiments, please refer to the appendix. Figures 9 to 12 In one embodiment, the third support member 33 includes a plurality of splicing units 333 arranged sequentially along the circumferential direction. Each splicing unit 333 includes a first mating edge 3331 and a second mating edge 3332, which are located on both sides of the splicing unit 333 along the circumferential direction. Between two adjacent splicing units 333, the first mating edge 3331 of one splicing unit 333 and the second mating edge 3332 of another splicing unit 333 are mutually abutted. The first mating edge 3331 and the second mating edge 3332 are locked together by a locking structure, so that the adjacent splicing units 333 form a stable connection in the circumferential direction. The plurality of splicing units 333 are assembled sequentially to form the third support member 33. In this embodiment, the specific outline of each splicing unit 333 is not limited.

[0057] Understandably, the third support component 33, formed by assembling multiple splicing units 333, can be divided into several relatively independent units, which facilitates modular processing during manufacturing, transportation, and on-site installation. Each splicing unit 333 can be processed and transported separately, and then assembled segment by segment along the circumference at the installation site to form the third support component 33. This reduces the requirements of the overall component size on transportation and hoisting conditions, and facilitates construction layout under different site conditions. Of course, the third support component 33 can also be a single piece, and the choice can be made flexibly according to the actual processing difficulty, transportation difficulty, and assembly difficulty. This application is not limited to this.

[0058] In this embodiment, the first mating edge 3331 and the second mating edge 3332 can be locked together in various ways. In a simpler implementation, after the first mating edge 3331 and the second mating edge 3332 abut against each other, they are directly locked together by a locking component (such as a bolt assembly).

[0059] In other embodiments, the first mating edge 3331 and the second mating edge 3332 are locked together by a clamping member 3333. Specifically, the clamping member 3333 abuts against at least a portion of the outer periphery of the first mating edge 3331 and the second mating edge 3332, and is fastened by a locking member, so that the clamping member 3333 clamps the first mating edge 3331 and the second mating edge 3332 after being fastened, thereby locking the adjacent splicing units 333 together.

[0060] Furthermore, the clamping member 3333 can also cooperate with the first connecting portion 331 or the second connecting portion 332 on the third support member 33. Specifically, the first connecting portion 331 or the second connecting portion 332 includes a plate, the free end of the clamping member 3333 abuts against the plate, and the locking member passes through the free end of the clamping member 3333 and the plate in sequence and fastens them, so that the clamping member 3333 simultaneously applies a locking effect to the first mating edge 3331 and the second mating edge 3332. In this way, locking between splicing units 333 can be completed without providing too many mounting holes on the splicing unit 333 body, which can avoid affecting the structural strength of the splicing unit 333 due to too many holes.

[0061] In one embodiment, within each splicing unit 333, the first mating edge 3331 and the second mating edge 3332 both extend along the radial direction of the third support member 33, and their extension lines converge at the rotation center of the third support member 33. Besides serving a connecting function, the first mating edge 3331 and the second mating edge 3332 also strengthen the radial strength of the third support member 33, which helps improve the overall stability of the photovoltaic tracking bracket.

[0062] The splicing unit 333 also includes an inner connecting beam 3334 and an outer connecting beam 3335. The inner connecting beam 3334 connects the ends of the first mating edge 3331 and the second mating edge 3332 on the same side, defining the small-diameter end of the splicing unit 333, i.e., the structural boundary of the splicing unit 333 on the side closer to the rotation center. The outer connecting beam 3335 connects the ends of the first mating edge 3331 and the second mating edge 3332 on the other side, defining the large-diameter end of the splicing unit 333, i.e., the structural boundary of the splicing unit 333 on the side farther from the rotation center. By connecting the first mating edge 3331 and the second mating edge 3332 through the inner connecting beam 3334 and the outer connecting beam 3335, the splicing unit 333 forms a relatively complete structural frame in the radial direction, improving the circumferential strength of the third support member 33 and thus enhancing the overall stability of the photovoltaic tracking bracket.

[0063] It should be noted that, in this embodiment, the inner connecting beam 3334 and the outer connecting beam 3335 respectively define the inner and outer structures of the splicing unit 333, making it less likely for the splicing unit 333 to misalign during the splicing process, which helps to ensure the overall consistency of the third support member 33 in the circumferential direction.

[0064] The splicing unit 333 also includes an inner connecting plate 3337, to which all inner connecting beams 3334 are connected, making the inner connecting beams 3334 a whole. In some embodiments, adjacent inner connecting beams 3334 abut against each other and are connected to the inner connecting plate 3337 by bolts to improve the strength of the photovoltaic tracking bracket.

[0065] The first connecting part 331 and the second connecting part 332 are respectively arranged on opposite sides of the outer connecting beam 3335 along the height direction. Specifically, the first connecting part 331 is located on the side of the outer connecting beam 3335 away from the base 10 and is used to connect with the bottom of the second support member 32; the second connecting part 332 is located on the side of the outer connecting beam 3335 facing the base 10 and is used to connect with the rotary connection structure 20.

[0066] The number of splicing units 333 can be set according to the overall size of the third support member 33 and the load-bearing requirements of the support frame 30. Multiple splicing units 333 can be evenly arranged along the circumference, so that each splicing unit 333 is equally distributed in the circumferential direction, as shown in the figure. In the embodiment shown in the figure, for example, the third support member 33 is formed by sequentially splicing eight splicing units 333, so that the third support member 33 forms a relatively uniform structural distribution in the circumferential direction.

[0067] It should be noted that the number of splicing units 333 mentioned above is only an example, and the number of splicing units 333 is not limited to eight. Depending on the actual application requirements, the splicing units 333 can also be set to four, six, or other numbers, and arranged at equal or non-equal intervals along the circumferential direction. The specific shape characteristics of the inner connecting beam 3334 and the outer connecting beam 3335 are not limited; they can be set as straight lines, as shapes with a certain curvature, or as polygonal lines.

[0068] Based on the above embodiments, such as Figure 11 As shown, each splicing unit 333 also includes at least one reinforcing beam 3336. At least a portion of the reinforcing beam 3336 is radially disposed between the inner connecting beam 3334 and the outer connecting beam 3335, with its two ends fixedly connected to the first mating edge 3331 and the second mating edge 3332, respectively, so that the reinforcing beam 3336 connects the first mating edge 3331 and the second mating edge 3332 into one unit in the radial direction.

[0069] Thus, by setting a reinforcing beam 3336 between the inner connecting beam 3334 and the outer connecting beam 3335, the structural stiffness of the splicing unit 333 itself can be improved, thereby enabling the third support member 33 to maintain a relatively stable structural state during the overall rotation process when multiple splicing units 333 are assembled to form the third support member 33.

[0070] In the accompanying drawings, a reinforcing beam 3336 is provided within the splicing unit 333; in other embodiments, multiple reinforcing beams 3336 may be provided within the same splicing unit 333, depending on the size of the splicing unit 333 or the load-bearing requirements, to further enhance the structural strength of the splicing unit 333, in which case this is not shown in the accompanying drawings.

[0071] In one embodiment, the support frame 30 further includes a diagonal brace 34. Specifically, in some embodiments, the two ends of the diagonal brace 34 are directly or indirectly connected to the first support member 31 and the third support member 33, respectively, so that the first support member 31 (upper part of the support frame 30) and the third support member 33 (lower part of the support frame 30) form an oblique connection. Thus, when the first support member 31 carries the photovoltaic module 60, part of its load can be transferred to the third support member 33 through the diagonal brace 34, which is beneficial to the overall force distribution of the support frame 30.

[0072] In other arrangements, the two ends of the diagonal brace 34 are connected to the second support 32 and the third support 33 respectively, so that the second support 32 is connected to the third support 33 via the diagonal brace 34 on the side near the base 10. By setting the diagonal brace 34 between the second support 32 and the third support 33, the lower structure of the support frame 30 can be reinforced, so that the support frame 30 maintains a relatively stable structural state during rotation and load-bearing.

[0073] Furthermore, in some other arrangements, the diagonal brace 34 can also be connected between at least two partially adjacent second supports 32. In this case, such as... Figure 7 and Figure 8 As shown, two adjacent second support members 32 have different tilt angles relative to the vertical direction. In this case, these two second support members 32 and the bottom third support member 33 can be considered to form the first layer of triangular support. Multiple diagonal braces 34 can also be staggered between the two second support members 32, so that the diagonal braces 34 and the two second support members 32 together form the next layer of triangular support. Thus, by forming a triangular support structure inside the support frame 30, the structural rigidity of the support frame 30 can be improved in a localized area, giving the support frame 30 better resistance to deformation when bearing the photovoltaic module 60 and undergoing rotational movement.

[0074] Based on the above embodiments, please refer to the appendix for details. Figure 3 and Figure 4 When the diagonal bracing member 34 is connected between the first support member 31 and the third support member 33, multiple diagonal bracing members 34 can be provided and arranged at both ends of the first support member 31 along its length. Each end of the first support member 31 is provided with at least two diagonal bracing members 34. The first ends of the at least two diagonal bracing members 34 are connected to the first support member 31 at that end, for example, by hinge. The second ends of the at least two diagonal bracing members 34 are respectively fixed to different connection positions on the third support member 33, for example, by hinge, so that the multiple diagonal bracing members 34 at the same end form dispersed landing points on the third support member 33.

[0075] The connecting positions on the third support member 33 are spaced circumferentially and symmetrically distributed with reference to the extension direction of the first support member 31. Specifically, the vertical plane corresponding to the extension direction of the first support member 31 is taken as the symmetrical reference plane. On both sides of this reference plane, corresponding connecting positions are respectively set at the circumferential positions of the third support member 33. The second ends of multiple diagonal braces 34 at the same end of the first support member 31 are respectively connected to the connecting positions on both sides, thereby forming a triangular support structure between the end of the first support member 31 and the third support member 33.

[0076] Furthermore, by forming triangular support structures at both ends of the first support member 31, the structural support of the end area of ​​the support frame 30 is more stable when it carries the photovoltaic module 60 and rotates, and it is less likely to experience unilateral force concentration.

[0077] Please refer to the attached document. Figure 13In one structural form, the movable mechanism 22 includes a load-bearing wheel assembly. The load-bearing wheel assembly includes multiple vertical rollers 221, which roll against the top surface of the annular track 21, allowing the weight of the support frame 30 to be transferred to the base 10 via the load-bearing wheel assembly. At least one of the multiple vertical rollers 221 is connected to the first drive mechanism 23. When the first drive mechanism 23 operates, this vertical roller 221 rolls on the top surface of the annular track 21, and through the overall structure of the support frame 30, drives the remaining vertical rollers 221 to move synchronously, thereby realizing the rotational movement of the support frame 30 along the annular track 21.

[0078] In another structural form, the movable mechanism 22 may also include a guide wheel assembly. The guide wheel assembly includes multiple lateral rollers 222, which roll against the sidewalls of the annular track 21 to limit the radial displacement of the support frame 30 relative to the base 10. In this case, the lateral rollers 222 primarily serve a guiding and limiting function, ensuring the radial position of the support frame 30 remains stable as it rotates along the annular track 21. This contributes to the structural stability of the support frame 30 when it carries the photovoltaic module 60 and undergoes rotational motion.

[0079] The annular track 21 includes a flange 211 that extends radially from the top surface of the annular track 21. Multiple vertical rollers 221 roll against the top surface of the annular track 21 and the top surface of the flange 211, and multiple lateral rollers 222 roll against the side wall of the annular track 21 and the bottom surface of the flange 211. By having the vertical rollers 221 and the lateral rollers 222 roll against the flange 211 on the upper and lower sides respectively, the movable mechanism 22 is confined to the flange 211, reducing the probability of the movable mechanism 22 disengaging from the annular track 21.

[0080] The third support member 33 also includes at least two third connecting portions 334. The extension direction of the third connecting portions 334 is perpendicular to that of the second connecting portion 332. At least two third connecting portions 334 are connected to both ends of the second connecting portion 332. One third connecting portion 334 is located inside the annular track 21, and the other third connecting portion 334 is located outside the annular track 21. One end of the vertical roller 221 is connected to the inner third connecting portion 334, and the other end of the vertical roller 221 is connected to the outer third connecting portion 334. Lateral rollers 222 are respectively installed on the inner and outer third connecting portions 334. In this way, the lateral rollers 222 are limited to the inner and outer sides of the annular track 21 by the limiting of the lateral rollers 222 by the third connecting portions 334 on the inner and outer sides.

[0081] The vertical roller 221 and the side roller 222 can be fixedly connected to the third connecting part 334, for example, by bolt connection, and roll against the annular track 21 through their free rolling ends. Alternatively, the vertical roller 221 and the side roller 222 can be rotatably connected to the third connecting part 334, and roll against the annular track 21 through the rotation of the vertical roller 221 and the side roller 222 relative to the third connecting part 334.

[0082] In some embodiments, the third support member 33 further includes at least two fourth connecting portions 335 and at least two fifth connecting portions 336. One side of the fourth connecting portion 335 abuts against the first connecting portion 331, and the other side of the fourth connecting portion 335 abuts against the second connecting portion 332. The fourth connecting portion 335 is a hollow structure, such as a square tube. The fifth connecting portion 336 is located within the cavity of the fourth connecting portion 335. One end of the fifth connecting portion 336 abuts against one side of the fourth connecting portion 335, and the other end of the fifth connecting portion 336 abuts against the other side of the fourth connecting portion 335. The fifth connecting portion 336 is also a hollow structure, such as a cylinder, and some fasteners are located within the cavity of the fifth connecting portion 336. The fasteners pass sequentially through the first connecting portion 331, one side of the fourth connecting portion 335, one end of the fifth connecting portion 336, the other end of the fifth connecting portion 336, the other side of the fourth connecting portion 335, and the second connecting portion 332 for fastening. Thus, the structural strength near the movable mechanism 22 can be increased through the fourth connecting portion 335 and the fifth connecting portion 336. In addition, the fourth connecting portion 335 can widen the radial area of ​​the third support member 33, providing more support points for the second support member 32 and improving the overall stability of the photovoltaic tracking bracket.

[0083] In further structural forms, such as Figure 8 and Figure 15 As shown, the movable mechanism 22 may also include multiple gears 223, and the annular track 21 has meshing portions 212 on the side facing the movable mechanism 22 that mate with the tooth surfaces of the gears 223. The first drive mechanism 23 is connected to at least one gear 223. When the first drive mechanism 23 outputs driving force, the gear 223 rolls along the annular track 21 under the constraint of the meshing portion 212, thereby driving the support frame 30 to rotate around the vertical axis. Through the meshing relationship between the gear 223 and the meshing portion 212, forward and reverse driving during the rotation of the support frame 30 can be realized, which also helps to improve the accuracy of control.

[0084] The aforementioned load-bearing wheel assembly, guide wheel assembly, and gear drive structure can be set individually according to actual needs, or they can be combined and used in the same movable mechanism 22. For example... Figure 6 As shown, in some embodiments, the rollers in the active mechanism 22 have both rolling surfaces and guide surfaces, thus integrating the functions of the vertical roller 221 and the lateral roller 222.

[0085] In one embodiment, see Appendix Figure 9 In the photovoltaic tracking bracket of this application, the base 10 is provided with a fixing structure 13, which is used to fix the base 10 to the mounting base.

[0086] like Figure 14 As shown, the fixing structure 13 includes a group of clamping members 131 and fastening members 132. The outer edge of the base 10 extends radially to at least one side to form an extension edge 12. The clamping members 131 are disposed above the extension edge 12 and clamp the extension edge 12. The fastening members 132 pass through the clamping members 131 and are anchored in the mounting base, so that the clamping members 131 press the extension edge 12 against the surface of the mounting base after fastening.

[0087] Thus, the base 10 is fixed through the cooperation between the extended edge 12 and the clamping member 131, and the body of the base 10 does not need to be provided with mounting holes for fixing. In one embodiment shown in the figure, the outer edge of the base 10 forms extended edges 12 on opposite sides in the radial direction. Correspondingly, clamping members 131 and fastening members 132 are respectively provided on the extended edges 12 on both sides, so that the extended edges 12 on both sides are simultaneously clamped and constrained, thereby improving the fixing effect of the fixing structure 13. In one embodiment, the fastening member 132 includes a U-bolt and a nut adapted to it. The two ends of the U-bolt pass through the corresponding clamping member 131 and the extended edge 12 respectively and are fastened by the nut. If the photovoltaic tracking bracket is set on a soft mounting foundation, such as mud or sand, the U-bolt can be directly inserted into the mounting foundation to fix the photovoltaic tracking bracket, without the need to lay a base on the mounting foundation to connect the U-bolt to the base.

[0088] Understandably, by adopting the fixing structure 13 of this embodiment, the base 10 does not need to be drilled during installation, thus ensuring structural strength. At the same time, the clamping member 131 and the fastening member 132 are arranged in groups and along the outer edge of the base 10, so that the fixing force of the fixing structure 13 on the base 10 is distributed circumferentially, which is conducive to maintaining a stable stress state of the base 10.

[0089] Additionally, a pad 133 can be provided between the lower surface of the extension edge 12 and the mounting base. The pad 133 is located between the lower surface of the extension edge 12 and the mounting base, serving to support and transition the extension edge 12. In other words, the upper surface of the extension edge 12 abuts against the clamping member 131, and the lower surface abuts against the pre-set pad 133, ensuring the effect of pressing and fixing, and preventing problems caused by unevenness of the mounting base surface. It should be noted that whether or not to provide the pad 133 can be selected according to the construction conditions of the mounting base and the installation requirements of the base 10, and does not constitute a limitation on the form of the fixing structure 13.

[0090] In one embodiment, refer to the appendix to the specification. Figure 1 and Figure 2 According to another aspect of this application, this application further provides an integrated photovoltaic system, including a photovoltaic tracking bracket, a main shaft 80, a plurality of photovoltaic modules 60, and electrical equipment 70, as described in any of the preceding embodiments. The photovoltaic tracking bracket can adopt the structural form described in any of the preceding embodiments, and a module mounting part 40 is provided on the photovoltaic tracking bracket, through which the main shaft 80 is supported and positioned.

[0091] Several photovoltaic modules 60 are mounted on the main shaft 80 along its length and can be adjusted in angle synchronously with the main shaft 80. Electrical equipment 70 is housed within the receiving space 50 of the photovoltaic tracking bracket. Electrical equipment 70 may include an energy storage cabinet and / or an inverter. The photovoltaic modules 60 are electrically connected to the electrical equipment 70, enabling the electrical energy generated by the photovoltaic modules 60 to be transmitted to the electrical equipment 70 for conversion, storage, or output.

[0092] In this integrated photovoltaic system, in some embodiments, the electrical equipment 70 is arranged within the housing space 50, thereby integrating the photovoltaic module 60, the main shaft 80, and the electrical equipment 70 within the same structural unit. The housing space 50 is formed by the support frame 30 of the photovoltaic tracking bracket and the base 10, and is within the rotational range of the support frame 30. During the rotation of the support frame 30, the electrical equipment 70 in the housing space 50 will not interfere with it. Thus, the electrical equipment 70 does not require additional space, and the wiring path between the photovoltaic module 60 and the electrical equipment 70 is more concentrated, facilitating the overall system layout. In addition, since the photovoltaic tracking bracket rotates with the sun, the electrical equipment 70 is always in the shadow of the photovoltaic module 60. The photovoltaic module 60 can provide shade for the electrical equipment 70, preventing problems such as accelerated aging and battery thermal runaway caused by sun exposure.

[0093] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A photovoltaic tracking bracket for supporting photovoltaic modules, characterized in that, include: Base; A rotary connection structure includes a ring track, a movable mechanism, and a first drive mechanism. The ring track is disposed on the base. The movable mechanism is configured to cooperate with the ring track and can rotate along the ring track. A support frame is disposed on the movable mechanism, and the first drive mechanism is pulsatorically connected to at least a portion of the movable mechanism and / or the support frame, for driving the support frame to rotate relative to the base about a vertical axis to adjust the azimuth angle of the photovoltaic module; The component mounting section includes a support structure, a main shaft, purlins, and a second drive mechanism for supporting the main shaft; the support structure is disposed on the support frame, and the photovoltaic module is mounted on the main shaft through the purlins; The output end of the second drive mechanism is adapted to be connected to the main shaft drive to drive the main shaft to rotate, thereby adjusting the pitch angle of the photovoltaic module.

2. The photovoltaic tracking bracket according to claim 1, characterized in that, The support frame includes a first support member and at least two second support members, the at least two second support members being arranged at circumferential intervals along the rotary connection structure. The first support member spans and connects to the top region of the at least two second supports members, and the component mounting portion is disposed on the first support member or a mounting structure connected to the first support member.

3. The photovoltaic tracking bracket according to claim 2, characterized in that, The support frame further includes a third support member; the third support member is connected to one end of the at least two second support members near the base, and the third support member extends along the trajectory of the annular track; the first support member, the second support member and the third support member cooperate to form the main frame of the support frame, and at least part of the rotary connection structure is disposed between the third support member and the base.

4. The photovoltaic tracking bracket according to claim 3, characterized in that, The support frame further includes diagonal bracing members, and the diagonal bracing members are arranged in at least one of the following ways: The diagonal brace is inclinedly connected between the first support and the third support; The diagonal brace is connected between the second support and the third support; The diagonal brace is connected between at least two adjacent second support members, and the two second support members have different tilt angles relative to the vertical direction to form a triangular support within the support frame.

5. The photovoltaic tracking bracket according to claim 4, characterized in that, When the diagonal brace is connected between the first support and the third support, there are multiple diagonal braces, and they are connected to the first support along the length direction of the first support. The first ends of at least two of the diagonal braces are connected to the same position on the first support member, and the second ends of at least two of the diagonal braces are respectively fixed to different connection positions on the third support member. The connection positions are symmetrically distributed around the first support member as an axis in the circumferential position of the third support member.

6. The photovoltaic tracking bracket according to any one of claims 3-5, characterized in that, The third support member is provided with a first connecting part and a second connecting part; the first connecting part is provided on the side of the third support member away from the base, and the bottom of the second support member is connected to the first connecting part; The second connecting part is disposed on the circumferential side of the third support member or on the side facing the base. The rotary connection structure is at least partially connected to the second connecting part and can form a rotational fit with the base.

7. The photovoltaic tracking bracket according to claim 6, characterized in that, The third support component includes multiple splicing units arranged sequentially along the circumferential direction; Each splicing unit includes a first mating edge and a second mating edge, which are respectively on both sides of the splicing unit in the circumferential direction; between two adjacent splicing units in the circumferential direction, the first mating edge of one splicing unit abuts against the second mating edge of the other splicing unit; the first mating edge and the second mating edge are locked together by a locking structure, so that multiple splicing units are assembled to form the third support member.

8. The photovoltaic tracking bracket according to claim 7, characterized in that, Both the first mating edge and the second mating edge within the splicing unit extend radially along the third support member, and the extension lines of the first mating edge and the second mating edge converge at the rotation center of the third support member. The splicing unit further includes an inner connecting beam and an outer connecting beam; the inner connecting beam is connected between the first mating edge and the second mating edge on the side closer to the rotation center; the outer connecting beam is connected between the first mating edge and the second mating edge on the side farther from the rotation center.

9. The photovoltaic tracking bracket according to claim 8, characterized in that, Each splicing unit further includes at least one reinforcing beam, at least a portion of which is radially disposed between the inner connecting beam and the outer connecting beam; wherein, the two ends of the reinforcing beam are respectively fixedly connected to the first mating edge and the second mating edge; And / or, the first connecting portion and the second connecting portion are respectively arranged on opposite sides of the outer connecting beam along the height direction.

10. The photovoltaic tracking bracket according to any one of claims 1-5 and 7-9, characterized in that, The movable mechanism includes a plurality of vertical rollers that roll against the top surface of the annular track, and at least one of the vertical rollers is connected to the first drive mechanism; and / or, The movable mechanism includes multiple lateral rollers that roll against the sidewalls of the annular track to limit radial displacement of the support frame relative to the base; and / or, The movable mechanism includes multiple gears, and the annular track is provided with meshing parts that mate with the tooth surfaces of the gears on one side facing the movable mechanism; the first drive mechanism is connected to at least one of the gears to drive the gears to roll along the annular track, thereby causing the support frame to rotate around the vertical axis.

11. The photovoltaic tracking bracket according to any one of claims 1-5 and 7-9, characterized in that, The base includes a support structure corresponding to the receiving space for supporting the electrical equipment; and / or The base is provided with a fixing structure for fixing the base to the mounting foundation. The fixing structure includes a group of clamping members, pads, and fastening members. The outer edge of the base extends radially to at least one side to form an extension edge. The clamping members press against one side of the extension edge, the pads abut against the other side of the extension edge, and the fastening members pass through the clamping members and the pads and are anchored to the mounting foundation. Thus, the extension edge is clamped by the clamping members and the pads to fix the base to the mounting foundation.

12. The photovoltaic tracking bracket according to any one of claims 1-5 and 7-9, characterized in that, The support frame forms an enclosure space with the base on the side closest to the base, which is used to accommodate electrical equipment; a preset clearance is maintained between the electrical equipment in the enclosure space and the support frame.

13. An integrated photovoltaic system, characterized in that, include: At least one photovoltaic tracking bracket as described in any one of claims 1-12; Several photovoltaic modules are mounted on the main shaft along its length. The electrical equipment includes an energy storage cabinet and / or an inverter, and the photovoltaic modules are electrically connected to the electrical equipment.

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