Flexible photovoltaic tracking support

Abstract

The invention discloses a flexible photovoltaic tracking support which comprises a plurality of base structures. The plurality of beam structures are mounted on the base structure; the driving device is mounted on the beam structure and drives the beam structure to rotate around an axis; each cable structure is connected with two adjacent beam structures and comprises an assembly cable and a stabilizing cable, the stabilizing cables are located below the assembly cables, and the assembly cables are fixedly connected with the photovoltaic assemblies; the assembly cables comprise first assembly cables and second assembly cables which are arranged at intervals, and the stabilizing cables comprise first stabilizing cables and second stabilizing cables which are arranged at intervals; the supporting frame is connected to the assembly cable and the stabilizing cable; the first stabilizing cable and the second stabilizing cable are in an arc shape bent towards the outer side of the assembly cable. The flexible photovoltaic tracking support can prevent the photovoltaic modules from being twisted under the action of positive pressure, overcomes eccentric torque caused by deadweight eccentricity of the photovoltaic modules, keeps a row of photovoltaic modules at the same angle, ensures the generating capacity, and improves the structural stability.

Description

[0001] This application is a divisional application of the patent application filed on March 29, 2024, with application number 202410371079.2 and invention title "Flexible Photovoltaic Tracking Bracket". Technical Field

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

[0003] The mainstream flexible photovoltaic tracking brackets in the market usually adopt a three-cable system with triangular support. When the module rotates to a large tilt angle, the center of gravity of the entire system deviates from the center of rotation, generating torque. After a period of operation, this causes the mounting plane of the module to twist and deform, affecting the power generation of the module and its aesthetics. In addition, it will also cause an increase in the motor current of the rotary drive mechanism, which can easily cause motor overcurrent and increase the cost of use.

[0004] Therefore, it is necessary to provide a new flexible photovoltaic tracking bracket to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a flexible photovoltaic tracking bracket that is not easily twisted in photovoltaic modules.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flexible photovoltaic tracking bracket includes:

[0008] A plurality of basic structures, wherein the basic structures are spaced apart;

[0009] A plurality of beam structures, wherein the beam structures are installed on the foundation structure;

[0010] A drive device, installed on the beam structure, is used to drive the beam structure to rotate about an axis;

[0011] A cable structure connects two adjacent beam structures. The cable structure includes component cables and stabilizing cables. The stabilizing cables are located below the component cables. The component cables are used for fixed connection with photovoltaic modules. The component cables include first component cables and second component cables arranged at intervals. The stabilizing cables include first stabilizing cables and second stabilizing cables arranged at intervals.

[0012] A support frame is connected to the component cable and the stabilizing cable; the support frame is a three-dimensional structure, and the support frame includes a first crossbar, a second crossbar, a first side bar and a second side bar, and the figure formed by the first crossbar, the second crossbar, the first side bar and the second side bar is a quadrilateral.

[0013] The first stabilizing cable and the second stabilizing cable are in an arc shape that bends outward from the component cable;

[0014] Viewed along a direction perpendicular to the plane containing the first and second component cables, the component cable is located between the first stabilizing cable and the second stabilizing cable.

[0015] As a further improvement of the present invention, in the L direction, the first stabilizing cable and the second stabilizing cable are in an arc shape that bends outward from the component cable; in the H direction, the first stabilizing cable and the second stabilizing cable are in an arc shape that bends upward.

[0016] As a further improvement of the present invention, in the cross-section of the cable structure, the first stabilizing cable and the second stabilizing cable are symmetrical with respect to the perpendicular bisector of the line connecting the first component cable and the second component cable.

[0017] As a further improved technical solution of the present invention, the first crossbar connects the first component cable and the second component cable, the second crossbar connects the first stabilizing cable and the second stabilizing cable, the first side bar connects the end of the first crossbar near the first component cable and the end of the second crossbar near the first stabilizing cable, and the second side bar connects the end of the first crossbar near the second component cable and the end of the second crossbar near the second stabilizing cable.

[0018] As a further improvement of the present invention, a plurality of support frames are spaced apart along the extension direction of the cable structure. The plurality of support frames include a first support frame located in the middle of the cable structure and a plurality of second support frames located on both sides of the first support frame along the extension direction of the cable structure. The area of ​​the first support frame is larger than the area of ​​the second support frames.

[0019] As a further improvement of the present invention, at the connection between the cable structure and the beam structure, the stabilizing cable is located between the first component cable and the second component cable.

[0020] As a further improvement of the present invention, the cable structure further includes anchorages, and the ends of the component cable and the stabilizing cable are fixed to the beam structure by the anchorages, and the component cable and the stabilizing cable have tension forces toward their respective ends.

[0021] As a further improvement of the present invention, the support frame is connected to the cable structure through a connector. The connector includes a buckle, a locking block, and a bolt. The buckle and the locking block are fixedly connected by the bolt, and the buckle and the locking block form a through hole for the component cable and the stabilizing cable to pass through.

[0022] As a further improved technical solution of the present invention, the basic structure includes a column, the beam structure includes a base and an inclined beam, the base is fixed on the column, the driving device includes a rotary drive and a motor, the motor provides power to the rotary drive, and the inclined beam and the rotary drive are coaxially and rotatably mounted on the base.

[0023] As a further improvement of the present invention, the first component cable and the second component cable are arranged in parallel, and the first component cable and the second component cable are configured to install the photovoltaic module.

[0024] Compared with existing technologies, the advantages of the flexible photovoltaic tracking bracket of the present invention are as follows:

[0025] This patent application employs a four-cable structure, comprising a component cable for supporting the photovoltaic modules and a stabilizing cable located below the component cable. The stabilizing cable includes a first stabilizing cable and a second stabilizing cable spaced apart. The first and second stabilizing cables are arc-shaped, curving outwards from the component cable. When the component cable rotates under the drive of the driving device, the prestress of the bottom stabilizing cable generates a supporting force to the upper left or upper right. The torque formed by this supporting force around the rotation center of the photovoltaic module overcomes the torque formed when the center of gravity of the entire system is not at the rotation center, thus ensuring the stability of the entire row of photovoltaic modules. This ensures that all photovoltaic modules installed on the component cable are on the same plane, preventing twisting and guaranteeing power generation. It also overcomes the force of the module's own weight, making the outer edges of all modules flush and aesthetically pleasing. Furthermore, the support frame includes a first crossbar, a second crossbar, a first side bar, and a second side bar. The shape formed by the first crossbar, the second crossbar, the first side bar, and the second side bar is a quadrilateral, thereby improving the structural reliability of the flexible photovoltaic tracking bracket.

[0026] Another stabilizing cable can generate forces that resist wind from acting on the front of the module and support the photovoltaic module upwards to overcome its weight, thus improving wind resistance.

[0027] This patent application can also improve the smoothness of the rotation of the entire cable structure, reduce the stress on the inclined beam, save materials for the inclined beam, reduce costs, and also reduce the motor current, ensuring the service life of the motor. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a flexible photovoltaic tracking bracket according to a specific embodiment of the present invention;

[0029] Figure 2 for Figure 1 Enlarged structural diagram of region A in the middle;

[0030] Figure 3 for Figure 1A magnified structural diagram of region B in the middle;

[0031] Figure 4 for Figure 1 A magnified structural diagram of region C in the middle;

[0032] Figure 5 This is a schematic diagram of the structure of a flexible photovoltaic tracking bracket according to a specific embodiment of the present invention;

[0033] Figure 6 for Figure 5 A magnified structural diagram of region E in the middle;

[0034] Figure 7 This is a top view schematic diagram of a cable structure according to a specific embodiment of the present invention;

[0035] Figure 8 for Figure 7 A magnified structural diagram of region F in the middle;

[0036] Figure 9 for Figure 7 A magnified structural diagram of the G region;

[0037] Figure 10 This is a schematic diagram of the support frame according to a specific embodiment of the present invention;

[0038] Figure 11 This is an exploded view of an anchor according to a specific embodiment of the present invention;

[0039] Figure 12 This is an assembly diagram of a connector according to a specific embodiment of the present invention;

[0040] Figure 13 This is an exploded view of a connector according to a specific embodiment of the present invention;

[0041] Figure 14 This is an assembly diagram of a beam structure and a driving device according to a specific embodiment of the present invention;

[0042] Figure 15 This is an exploded view of the beam structure and driving device according to a specific embodiment of the present invention. Detailed Implementation

[0043] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0044] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” as used in the specification and claims of this invention are also intended to include the plural forms unless the context clearly indicates otherwise.

[0045] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this invention are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" encompasses the element following "comprising" or "including" and its equivalents, but this does not preclude the element preceding "comprising" or "including" from also including other elements. In this invention, the term "several" means two or more.

[0046] Please see Figures 1 to 15 As shown in the figure, this embodiment discloses a flexible photovoltaic tracking bracket, including a base structure, a beam structure, a drive device, a cable structure, and a support frame 20. Several base structures are fixed to the ground at intervals. Each base structure is equipped with a beam structure and a drive device. The drive device is installed on the beam structure. The cable structure connects adjacent beam structures. The photovoltaic module 100 is installed on the cable structure. The drive device is used to drive the inclined beam in the beam structure to rotate around an axis, thereby driving the cable structure and the photovoltaic module 100 to rotate synchronously.

[0047] To facilitate the description of the embodiments of the present invention, the length direction of the photovoltaic module 100, that is, the left-right or transverse direction of the cable structure, is denoted as L; the width direction of the photovoltaic module 100, that is, the longitudinal or extending direction of the cable structure, is denoted as W; and the thickness direction of the photovoltaic module 100, that is, the vertical direction of the cable structure, is denoted as H. The three directions in the figure are perpendicular to each other.

[0048] Please see Figure 1 , Figure 2 , Figure 5 , Figure 7 and Figure 8 As shown, the cable structure includes component cables and stabilizing cables. The stabilizing cables are located below the component cables. Here, the stabilizing cables are located relatively below the component cables. When the support is located on a slope or mountain, the stabilizing cables are located diagonally below the component cables, which is also within the protection scope of this technical solution. The component cable is used for fixed connection with the photovoltaic module 100; further, in this embodiment, at least two component cables and two stabilizing cables are respectively provided; the component cable includes a first component cable 11 and a second component cable 12 arranged in the left-right direction (L direction), and the stabilizing cable includes a first stabilizing cable 13 and a second stabilizing cable 14 arranged in the left-right direction (L direction). The first component cable 11 and the second component cable 12 are arranged in parallel. The support frame 20 is installed inside the cable structure, and the support frame 20 connects the first component cable 11, the second component cable 12, the first stabilizing cable 13, and the second stabilizing cable 14. The first stabilizing cable 13 is an arc shape bending to the upper right, and / or the second stabilizing cable 14 is an arc shape bending to the upper left, that is, in the length direction (L direction) of the photovoltaic module 100, the first stabilizing cable 13 and the second stabilizing cable 14 are arc shapes bending outward from the component cable, such as... Figure 7 In the thickness direction (H direction) of the photovoltaic module 100, the first stabilizing cable 13 and the second stabilizing cable 14 are in an upwardly curved arc shape, such as... Figure 1 and Figure 5 The specific arc's radius and curvature will be adjusted based on the site conditions and load-bearing capacity requirements.

[0049] With this configuration, when the module cables rotate under the drive of the drive device, the prestress of the bottom stabilizing cable (such as the first stabilizing cable 13) can generate an upward supporting force. The torque formed by the supporting force around the center of gravity of the photovoltaic module 100 can overcome or offset the torque formed when the center of gravity of the photovoltaic module 100 is not at the center of rotation. If this torque is not overcome, after a period of use, it will cause the photovoltaic module 100 to twist, making the photovoltaic modules 100 in the middle position and the position near the foundation structure not on the same plane, affecting the power generation. The technical solution of this patent application can ensure that all photovoltaic modules 100 are on the same plane. Meanwhile, the stabilizing cable on the other side (such as the second stabilizing cable 14) can generate a force to resist the wind applied to the front of the module and support the photovoltaic module 100 upward to overcome its gravity, thereby improving wind resistance.

[0050] Here, the first stabilizing cable 13 is an arc bending upwards to the right, and the second stabilizing cable 14 is an arc bending upwards to the left, based on the fact that the first stabilizing cable 13 is located on the left and the second stabilizing cable 14 is located on the right. If the left and right positions of the first stabilizing cable 13 and the second stabilizing cable 14 are simply changed, that is, the first stabilizing cable 13 is located on the right and the second stabilizing cable 14 is located on the left, and the first stabilizing cable 13 is an arc bending upwards to the left and the second stabilizing cable 14 is an arc bending upwards to the right, these two should be regarded as constituting equivalent technical features or technical solutions.

[0051] In this embodiment, viewed along a direction perpendicular to the plane containing the first component cable 11 and the second component cable 12, the component cable is located between the first stabilizing cable 13 and the second stabilizing cable 14, as shown below. Figure 7 This arrangement ensures good stability of the cable structure even within a large rotation range, preventing the entire row of photovoltaic modules 100 from twisting and guaranteeing power generation. Furthermore, the relatively large distance between the stabilizing cables and the module cables also improves the torsional resistance of the entire cable structure. Here, "the module cable is located between the first stabilizing cable 13 and the second stabilizing cable 14" means that the two module cables are completely located between the first stabilizing cable 13 and the second stabilizing cable 14 laterally, or that the two module cables are located between the maximum lateral distance D between the first stabilizing cable 13 and the second stabilizing cable 14. Figure 8 .

[0052] In another embodiment, when viewed along a direction perpendicular to the plane containing the first component cable 11 and the second component cable 12, the first stabilizing cable 13 and the second stabilizing cable 14 may also be located between the two component cables.

[0053] In this embodiment, at the cross-section of the cable structure, i.e. Figure 1 and Figure 7 The cross section along the ZZ line is symmetrical with respect to the perpendicular bisector of the line connecting the first component cable 11 and the second component cable 12, so that the flexible photovoltaic tracking bracket is in force balance when rotating in the east-west direction (L direction).

[0054] Further, please refer to Figure 3 , Figure 4 and Figure 9 As shown, at the connection between the cable structure and the beam structure, the stabilizing cable is located between the component cables. Specifically, at the connection between the cable structure and the beam structure, the first stabilizing cable 13 and the second stabilizing cable 14 are located between the first component cable 11 and the second component cable 12, with the first stabilizing cable 13 at a similar height to the first component cable 11, and the second stabilizing cable 14 at a similar height to the second component cable 12. Correspondingly, at the installation location of the photovoltaic module 100 on the cable structure, the first component cable 11 and the second component cable 12 are located between the first stabilizing cable 13 and the second stabilizing cable 14. This arrangement allows the stabilizing cable at the connection with the beam structure to simultaneously generate upward supporting force and inward tightening force on the stabilizing cables inclined upwards between adjacent beam structures, preventing the stabilizing cable from easily expanding outwards due to its location on the outer side of the bend in the middle, thereby further improving the overall structural stability and the smoothness of the cable structure's rotation.

[0055] Please see Figure 3 , Figure 9 and Figure 11 As shown, the cable structure also includes anchors 15, and the ends of the component cables and stabilizing cables are fixed to the beam structure through the anchors 15. The anchors 15 include a sleeve 151, a fixing cylinder 152, a locking cylinder 153, a connecting pipe 154, and an installation pipe 155. The sleeve 151 clamps the component cable or stabilizing cable. The fixing cylinder 152 is fitted around the outer periphery of the sleeve 151 and abuts against the beam structure. The locking cylinder 153 is fixedly connected to the fixing cylinder 152 and locks the sleeve 151 to fix the component cable or stabilizing cable. The connecting pipe 154 is connected to the end of the locking cylinder 153 away from the fixing cylinder 152. The installation pipe 155 is fixed to the end of the connecting pipe 154 away from the locking cylinder 153. The component cable or stabilizing cable is at least partially exposed on the side of the installation pipe 155 away from the connecting pipe 154. Furthermore, the jacket 151 is configured as a separate unit, clamping the component cable or stabilizing cable on opposite radial sides. The outer wall of the fixing cylinder 152 has external threads, and the inner wall of the locking cylinder 153 has corresponding internal threads, facilitating a fixed connection between the two and applying pressure to the jacket 151 located within the fixing cylinder 152 to lock the component cable or stabilizing cable. Using the anchor 15 to fix the ends of the component cable and stabilizing cable facilitates the application and holding of outward tension forces at both ends during installation of the component cable and stabilizing cable, ensuring tension in both the component cable and stabilizing cable towards their respective ends, thereby improving the stability of the cable structure and the support force for the photovoltaic module 100.

[0056] Please see Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 10As shown, the support frame 20 is installed on the cable structure and spaced apart between adjacent beam structures, used to connect the component cables and stabilizing cables and support the photovoltaic module 100. The support frame 20 includes a first crossbar 21, a second crossbar 22, a first side bar 23, and a second side bar 24. The first crossbar 21 is parallel to the second crossbar 22 and is located above the second crossbar 22. The length of the first crossbar 21 is less than the length of the second crossbar 22. The first side bar 23 and the second side bar 24 connect the same-side ends of the first crossbar 21 and the second crossbar 22, respectively. Further, the first crossbar 21 connects the first component cable 11 and the second component cable 12, the second crossbar 22 connects the first stabilizing cable 13 and the second stabilizing cable 14, the first side bar 23 connects the end of the first crossbar 21 near the first component cable 11 and the end of the second crossbar 22 near the first stabilizing cable 13, and the second side bar 24 connects the end of the first crossbar 21 near the second component cable 12 and the end of the second crossbar 22 near the second stabilizing cable 14. Furthermore, the quadrilateral formed by the first horizontal bar 21, the second horizontal bar 22, the first side bar 23, and the second side bar 24 is a trapezoid, and the angles between the first side bar 23 and the second side bar 24 and the second horizontal bar 22 are both less than 90°. In some embodiments, the angles between the first side bar 23 and the second horizontal bar 22, and the angles between the second side bar 24 and the second horizontal bar 22 are equal, that is, the trapezoid formed by the first horizontal bar 21, the second horizontal bar 22, the first side bar 23, and the second side bar 24 is an isosceles trapezoid, which is a symmetrical structure. In other embodiments, the angles between the first side bar 23 and the second horizontal bar 22, and the angles between the second side bar 24 and the second horizontal bar 22 are not equal. With this configuration, when the tilt angle of the component cable on which the photovoltaic module 100 is installed is too large, the first side bar 23 and the second side bar 24 can effectively support the component cable and the photovoltaic module 100, preventing the photovoltaic module 100 from sag and twisting, thus improving the stability of the support structure.

[0057] Further, please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 10As shown, the support frame 20 also includes a first reinforcing rod 25 and a second reinforcing rod 26. The first reinforcing rod 25 and the second reinforcing rod 26 are disposed within the quadrilateral formed by the first crossbar 21, the second crossbar 22, the first side bar 23 and the second side bar 24, and are used to enhance the structural strength and stability of the support frame 20. In this embodiment, the first reinforcing rod 25 connects the first crossbar 21 and the second crossbar 22, and the second reinforcing rod 26 also connects the first crossbar 21 and the second crossbar 22. One end of the first reinforcing rod 25 connected to the second crossbar 22 is close to the first side bar 23, and one end of the second reinforcing rod 26 connected to the second crossbar 22 is close to the second side bar 24. The ends of the first reinforcing rod 25 and the second reinforcing rod 26 connected to the first crossbar 21 are close to each other and located in the middle of the first crossbar 21. In some embodiments, the first reinforcing rod 25 and the second reinforcing rod 26 are symmetrically arranged, and the entire support frame 20 is a symmetrical structure. In other embodiments, the first reinforcing rod 25 and the second reinforcing rod 26 can also be asymmetrically arranged, and one or more reinforcing rods can be provided. This application does not limit the number and arrangement of reinforcing rods, and can be set according to the specific actual situation.

[0058] In some embodiments, the support frame 20 may also be a non-quadrilateral with a cross structure; in other embodiments, the support frame 20 may also be configured as a three-dimensional structure, as long as the support frame 20 connects the module cable and the stabilizing cable on a cross section along the thickness direction of the photovoltaic module 100, it can play the same role.

[0059] In this embodiment, each rod of the support frame 20 is made of U-shaped steel to facilitate the interconnection between the rods, and holes are provided to facilitate the installation of fasteners for fixation.

[0060] Please see Figure 2 , Figure 6 , Figure 12 and Figure 13As shown, the support frame 20 is connected to the cable structure through the connector 16. The connector 16 includes a buckle 161, a locking block 162 and a bolt 163. The buckle 161 and the locking block 162 are fixedly connected by the bolt 163, and the buckle 161 and the locking block 162 cooperate to form a through hole 164 for the component cable and the stabilizing cable to pass through. Specifically, the buckle 161 is a U-shaped buckle, including an upper arc portion 1611 and two fixing portions 1612 at both ends of the upper arc portion 1611. The locking block 162 includes a lower arc portion 1621 and two fourth through holes 1622 at both ends of the lower arc portion 1621. The upper arc portion 1611 and the lower arc portion 1621 cooperate to form a through hole 164 for the component cable and the stabilizing cable to pass through. The fixing portion 1612 passes through the fourth through hole 1622. The bolt 163 is used to lock the locking block 162 to the outer periphery of the fixing portion 1612 and abut against the locking block 162, thereby realizing the fixing of the connector 16 and the connection between the support frame 20 and the cable structure. In this embodiment, a connector 16 is provided on the first crossbar 21 and the second crossbar 22. The through hole 164 of the connector 16 on the first crossbar 21 is located on the side of the first crossbar 21 that is relatively far away from the second crossbar 22, and the through hole 164 of the connector 16 on the second crossbar 22 is located on the side of the second crossbar 22 that is far away from the first crossbar 21. That is, in the thickness direction of the photovoltaic module 100, the support frame 20 is located between the module cable and the stabilizing cable.

[0061] Please see Figure 1 , Figure 5 and Figure 7 As shown, multiple support frames 20 are spaced apart along the extension direction (W direction) of the cable structure. Each support frame 20 includes a first support frame 201 located in the middle of the cable structure and multiple second support frames 202 located on both sides of the first support frame 201 along the extension direction (W direction). The area of ​​the first support frame 201 is larger than the area of ​​the second support frames 202. Each second support frame 202 includes two first sub-support frames 203 and two second sub-support frames 204. The two first sub-support frames 203 are located on both sides of the first support frame 201 and are symmetrical with respect to the first support frame 201. The two second sub-support frames 204 are located on both sides of the first support frame 201 and are symmetrical with respect to the first support frame 201. The second sub-support frames 204 are located away from the first support frame 201 relative to the first sub-support frames 203, and the area of ​​the first sub-support frames 203 is larger than the area of ​​the second sub-support frames 204. In this embodiment, the maximum lateral distance D between the first stabilizing cable 13 and the second stabilizing cable 14 is the distance between them at the first support frame 201.

[0062] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 9 , Figure 14 and Figure 15As shown, the basic structure of the flexible photovoltaic tracking bracket includes columns 31 and wind-resistant components 32. The columns 31 are spaced apart on the ground, and the wind-resistant components 32 are spaced apart between adjacent columns 31. A beam structure is installed on the columns 31. The beam structure includes a base 41 and an inclined beam 42. The base 41 is fixed to the column 31. The driving device includes a rotary drive motor 51 and a motor 52. The motor 52 provides power to the rotary drive motor 51. The inclined beam 42 and the rotary drive motor 51 are coaxially and rotatably mounted on the base 41. Specifically, the base 41 includes two parallel mounting plates 411, with an inclined beam 42 and a rotary drive 51 mounted between the two mounting plates 411, and the rotary drive 51 fixed to the inclined beam 42. The mounting plates 411 have a first mounting hole 412, the inclined beam 42 has a second mounting hole 421, and the rotary drive 51 has a third mounting hole 511. A rotating shaft 43 passes through the first mounting hole 412, the second mounting hole 421, and the third mounting hole 511, coaxially mounting the inclined beam 42 and the rotary drive 51 onto the base 41, allowing the rotary drive 51 to drive the inclined beam 42 to rotate around the rotating shaft 43 on the base 41. The drive unit also includes a control box 53, which is fixed to the inclined beam 42 to control the rotary drive 51. The control box 53 can be fixedly connected to the inclined beam 42 using clamps. The wind-resistant component 32 includes a wind-resistant column 321, a wind-resistant rope 322, and a wind-resistant crossbar 323. The wind-resistant column 321 is fixed to the ground, the wind-resistant crossbar 323 is connected to the component cable through a connector 16, and the wind-resistant rope 322 connects the wind-resistant column 321 and the wind-resistant crossbar 323. The wind-resistant component 32 can effectively resist negative winds.

[0063] Compared with the traditional triangular support, the flexible photovoltaic tracking bracket of this embodiment has significant advantages. It adopts a four-cable structure, with component cables supporting the photovoltaic modules 100 and stabilizing cables located below the component cables. The stabilizing cables include a first stabilizing cable and a second stabilizing cable arranged in a left-right direction. The first stabilizing cable is an arc bending upwards to the right, and / or the second stabilizing cable is an arc bending upwards to the left. When the component cables rotate under the drive of the driving device, the prestress of the bottom stabilizing cable can generate a supporting force to the upper left or upper right. The torque formed by the supporting force around the rotation center of the photovoltaic module 100 can overcome the torque formed when the center of gravity of the entire system is not at the rotation center, thereby ensuring the stability of the entire row of photovoltaic modules 100. This ensures that all photovoltaic modules 100 installed on the component cables are on the same plane, are not easily twisted, guarantee power generation, and can also overcome the force of the module's own weight, making the outer edges of all modules flush and aesthetically pleasing. The other stabilizing cable can generate a force to resist the wind applied to the front of the module and support the photovoltaic module 100 upwards to overcome its weight, improving wind resistance. This application can also improve the smoothness of the rotation of the entire cable structure, reduce the stress on the inclined beam 42, save the material of the inclined beam 42, reduce costs, and also reduce the motor current and ensure the service life of the motor.

[0064] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 14 and Figure 15 As shown, this embodiment discloses a flexible photovoltaic tracking bracket with four spans per row, including five columns 31. Each span of the bracket is equipped with two sets of wind-resistant components 32 and five trapezoidal support frames 20, including a first support frame 201 and two sets of second support frames 202 symmetrically arranged on both sides of the first support frame 201. Each set of second support frames 202 includes a first sub-support frame 203 and a second sub-support frame 204. The lower end of the wind-resistant column 321 is set as a spiral anchor to sink more stably into the ground. The two ends of the component cable and the stabilizing cable are respectively fixed to the beam structure on the two end columns 31, and tension is applied to them and they are fixed to the inclined beam 42 using anchors 15. For the inclined beam 42 on the mid-span column 31, the component cable and the stabilizing cable are limited by the connector 16. In order to keep the component cable and the stabilizing cable at the same height on each inclined beam 42, the inclined beam 42 on the mid-span column 31 is also provided with an extension 422. The two extensions 422 are fixed to the two ends of the inclined beam 42, and the component cable and the stabilizing cable are fixed to the extensions 422 by the connector 16.

[0065] In summary, compared with existing technologies, the flexible photovoltaic tracking bracket of the present invention has the following advantages: First, it reduces the eccentric torque generated by the components when rotating at a certain angle, making the components less prone to twisting, ensuring that the entire row of components is located on the same plane, and also reducing the current of the rotary motor, avoiding overcurrent during operation and extending the service life of the motor; Second, it improves stability and aesthetics. Compared with traditional triangular supports, it not only improves the stability of the structure but also ensures that the edges of the entire row of components are in a straight line, improving the appearance of the components; Third, it enables the entire system to maintain superior mechanical performance and stability while maintaining reasonable manufacturing costs. In conclusion, the flexible photovoltaic tracking bracket of the present invention improves the stability and reliability of photovoltaic brackets by solving the problems existing in traditional flexible brackets, and has high practical value.

[0066] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on those skilled in the art. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A flexible photovoltaic tracking bracket, characterized in that, include: A plurality of basic structures, wherein the basic structures are spaced apart; A plurality of beam structures, wherein the beam structures are installed on the foundation structure; A drive device, installed on the beam structure, is used to drive the beam structure to rotate about an axis; A cable structure connects two adjacent beam structures. The cable structure includes a component cable and a stabilizing cable. The stabilizing cable is located below the component cable. The component cable is used for fixed connection with the photovoltaic module (100). The component cable includes a first component cable (11) and a second component cable (12) arranged at intervals. The stabilizing cable includes a first stabilizing cable (13) and a second stabilizing cable (14) arranged at intervals. A support frame (20) is connected to the component cable and the stabilizing cable; the support frame (20) is a three-dimensional structure, and the support frame (20) includes a first crossbar (21), a second crossbar (22), a first side bar (23), and a second side bar (24). The figure formed by the first crossbar (21), the second crossbar (22), the first side bar (23), and the second side bar (24) is a quadrilateral. The first stabilizing cable (13) and the second stabilizing cable (14) are in an arc shape that bends outward from the component cable; Viewed along a direction perpendicular to the plane containing the first component cable (11) and the second component cable (12), the component cable is located between the first stabilizing cable (13) and the second stabilizing cable (14).

2. The flexible photovoltaic tracking bracket according to claim 1, characterized in that: In the L direction, the first stabilizing cable (13) and the second stabilizing cable (14) are in an arc shape that bends outward from the component cable; in the H direction, the first stabilizing cable (13) and the second stabilizing cable (14) are in an arc shape that bends upward.

3. The flexible photovoltaic tracking bracket according to claim 1, characterized in that: In the cross-section of the cable structure, the first stabilizing cable and the second stabilizing cable are symmetrical with respect to the perpendicular bisector of the line connecting the first component cable and the second component cable.

4. The flexible photovoltaic tracking bracket according to any one of claims 1 to 3, characterized in that: The first crossbar (21) connects the first component cable (11) and the second component cable (12), the second crossbar (22) connects the first stabilizing cable (13) and the second stabilizing cable (14), the first side bar (23) connects the end of the first crossbar (21) near the first component cable (11) and the end of the second crossbar (22) near the first stabilizing cable (13), and the second side bar (24) connects the end of the first crossbar (21) near the second component cable (12) and the end of the second crossbar (22) near the second stabilizing cable (14).

5. The flexible photovoltaic tracking bracket according to claim 4, characterized in that: The plurality of support frames (20) are spaced apart along the extension direction of the cable structure. The plurality of support frames (20) include a first support frame (201) located in the middle of the cable structure and a plurality of second support frames (202) located on both sides of the first support frame (201) along the extension direction of the cable structure. The area of ​​the first support frame (201) is larger than the area of ​​the second support frame (202).

6. The flexible photovoltaic tracking bracket according to claim 1, characterized in that: At the connection between the cable structure and the beam structure, the stabilizing cable is located between the first component cable (11) and the second component cable (12).

7. The flexible photovoltaic tracking bracket according to claim 1, characterized in that: The cable structure also includes anchorages (15), the ends of the component cable and the stabilizing cable are fixed to the beam structure by the anchorages (15), and the component cable and the stabilizing cable have tension forces toward their respective ends.

8. The flexible photovoltaic tracking bracket according to claim 1, characterized in that: The support frame (20) is connected to the cable structure via a connector (16). The connector (16) includes a buckle (161), a locking block (162), and a bolt (163). The buckle (161) and the locking block (162) are fixedly connected by the bolt (163), and the buckle (161) and the locking block (162) form a through hole (164) through which the component cable and the stabilizing cable pass.

9. The flexible photovoltaic tracking bracket according to claim 1, characterized in that: The basic structure includes a column (31), the beam structure includes a base (41) and an inclined beam (42), the base (41) is fixed on the column (31), the driving device includes a rotary drive (51) and a motor (52), the motor (52) provides power to the rotary drive (51), and the inclined beam (42) and the rotary drive (51) are coaxially and rotatably mounted on the base (41).

10. The flexible photovoltaic tracking bracket according to claim 1, characterized in that: The first component cable (11) and the second component cable (12) are arranged in parallel, and the first component cable (11) and the second component cable (12) are configured to install the photovoltaic module (100).

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