Flexible photovoltaic tracking bracket

Abstract

Disclosed in the present invention is a flexible photovoltaic tracking bracket, comprising: base structures fixed on the ground at intervals; beam structures mounted on the base structures; driving devices mounted on the beam structures and driving the beam structures to rotate about an axis; cable structures connecting adjacent beam structures and comprising module cables and stabilizing cables, wherein the stabilizing cables are arranged below the module cables, the module cables are fixedly connected to photovoltaic modules and comprise first module cables and second module cables arranged in a left-right direction, and the stabilizing cables comprise first stabilizing cables and second stabilizing cables arranged in the left-right direction; and support frames connected to the module cables and the stabilizing cables, wherein the first stabilizing cables are in the shape of an arc curved to the upper right, and / or the second stabilizing cables are in the shape of an arc curved to the upper left. The flexible photovoltaic tracking bracket can prevent the photovoltaic modules from being twisted under the action of positive pressure, and overcome eccentric torque caused by deadweight eccentricity of the photovoltaic modules, thereby maintaining a row of photovoltaic modules at the same angle, ensuring the power generation capacity, and improving the structural stability.

Description

Flexible photovoltaic tracking bracket

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] The present invention claims priority to the Chinese patent application filed on March 29, 2024, with application number 202410371079.2 and invention name “Flexible Photovoltaic Tracking Bracket”. The relevant content of the Chinese patent application is incorporated herein by reference. Technical Field

[0003] The present invention relates to the technical field of flexible photovoltaic brackets, in particular to a flexible photovoltaic tracking bracket. Background Art

[0004] The mainstream flexible photovoltaic tracking brackets on the market usually use a three-cable system with triangular support. When the component rotates to a large inclination angle, the center of gravity of the entire system deviates from the center of rotation, generating torque. After running for a period of time, the component installation plane will be distorted. This not only has poor stability, but also affects the power generation and aesthetics of the component. In addition, it will cause the motor current of the rotary drive mechanism to increase, which can easily cause motor overcurrent and increase usage costs.

[0005] Therefore, it is necessary to provide a new flexible photovoltaic tracking bracket to solve the above problems.

[0006] Summary of the Invention

[0007] The object of the present invention is to provide a flexible photovoltaic tracking bracket with which photovoltaic components are not easily twisted, thereby effectively improving structural stability and ensuring power generation.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] A flexible photovoltaic tracking bracket, comprising:

[0010] The basic structure is fixed to the ground at intervals;

[0011] a beam structure installed on the base structure;

[0012] a driving device, mounted on the beam structure, for driving the beam structure to rotate around an axis;

[0013] a cable structure connecting adjacent beam structures, the cable structure comprising component cables and stabilizing cables, the stabilizing cables being located below the component cables, the component cables being used for being fixedly connected to photovoltaic components, the component cables comprising first component cables and second component cables arranged in the left-right direction, and the stabilizing cables comprising first stabilizing cables and second stabilizing cables arranged in the left-right direction;

[0014] a support frame connected to the component cables and the stabilizing cables;

[0015] The first stabilizing cable is in an arc shape that bends to the upper right, and / or the second stabilizing cable is in an arc shape that bends to the upper left.

[0016] As a further improved technical solution of the present invention, viewed along a direction perpendicular to the plane where the first component cable and the second component cable are located, the component cable is located between the first stabilizing cable and the second stabilizing cable.

[0017] As a further improved technical solution 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 midline of the connecting line of the first component cable and the second component cable.

[0018] As a further improved technical solution of the present invention, the support frame includes a first cross bar, a second cross bar, a first side bar and a second side bar, the first cross bar connects the first component cable and the second component cable, the second cross bar connects the first stabilizing cable and the second stabilizing cable, the first side bar connects an end of the first cross bar close to the first component cable and an end of the second cross bar close to the first stabilizing cable, and the second side bar connects an end of the first cross bar close to the second component cable and an end of the second cross bar close to the second stabilizing cable.

[0019] As a further improved technical solution of the present invention, multiple support frames are arranged at intervals along the extension direction of the cable structure, and the multiple support frames include a first support frame located in the middle of the cable structure and multiple second support frames arranged on both sides of the first support frame along the extension direction of the cable structure, and the area of ​​the first support frame is larger than that of the second support frame.

[0020] As a further improved technical solution 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.

[0021] As a further improved technical solution of the present invention, the cable structure also includes an anchor, and the ends of the component cable and the stabilizing cable are fixed to the beam structure through the anchor, and the component cable and the stabilizing cable both have tension toward their respective ends.

[0022] As a further improved technical solution of the present invention, the support frame is connected to the cable structure through a connecting member, and the connecting member includes a clip, a block and a bolt. The clip and the block are fixedly connected by the bolt, and the clip and the block form a through hole for the component cable and the stabilizing cable to pass through.

[0023] As a further improved technical solution of the present invention, the basic structure includes columns and wind-resistant components, the wind-resistant components are arranged at intervals between adjacent columns, and the beam structure is installed on the columns.

[0024] As a further improved technical solution of the present invention, the beam structure includes a base and an inclined beam, the base is fixed on the column, the driving device includes a rotary drive machine and a motor, the motor provides power for the rotary drive machine, and the inclined beam and the rotary drive machine are coaxially and rotatably installed on the base.

[0025] Compared with the prior art, the flexible photovoltaic tracking bracket of the present invention has the following advantages:

[0026] The present invention adopts a four-cable structure, which includes component cables for supporting photovoltaic components and stabilizing cables located below the component cables. The stabilizing cables include a first stabilizing cable and a second stabilizing cable arranged along the left and right directions. The first stabilizing cable is an arc curved to the upper right, and / or the second stabilizing cable is an arc curved to the upper left. When the component cable rotates under the drive of the driving device, the prestressed force of the bottom stabilizing cable (such as the first 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 component can overcome the torque formed because the center of gravity of the entire system is not at the rotation center, thereby ensuring the stability of the entire row of photovoltaic components, so that all photovoltaic components installed on the component cables are on the same plane and are not easily twisted, thereby ensuring the power generation. It can also overcome the force of the component's own weight to make the outer edges of all components flush and beautiful in appearance.

[0027] Another stabilizing cable (such as the second stabilizing cable) can generate a force to resist the force applied by the wind on the front of the component and support the photovoltaic component upward to overcome its gravity, thereby improving the wind resistance performance.

[0028] The present invention can also improve the smoothness of the rotation of the entire cable structure, reduce the force on the inclined beam, save materials for the inclined beam, reduce costs, and can also reduce the motor current to ensure the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a schematic structural diagram of a flexible photovoltaic tracking bracket according to a specific embodiment of the present invention;

[0030] FIG2 is an enlarged structural diagram of area A in FIG1 ;

[0031] FIG3 is a schematic diagram of the enlarged structure of area B in FIG1 ;

[0032] FIG4 is an enlarged structural diagram of area C in FIG1 ;

[0033] FIG5 is a schematic structural diagram of a flexible photovoltaic tracking bracket according to a specific embodiment of the present invention;

[0034] FIG6 is a schematic diagram of the enlarged structure of the E area in FIG5 ;

[0035] FIG7 is a schematic top view of a cable structure according to a specific embodiment of the present invention;

[0036] FIG8 is an enlarged structural diagram of the F area in FIG7 ;

[0037] FIG9 is a schematic diagram of the enlarged structure of the G area in FIG7 ;

[0038] FIG10 is a schematic structural diagram of a support frame according to a specific embodiment of the present invention;

[0039] FIG11 is an exploded schematic diagram of an anchor according to a specific embodiment of the present invention;

[0040] FIG12 is a schematic diagram of the assembly of a connector according to a specific embodiment of the present invention;

[0041] FIG13 is an exploded schematic diagram of a connector according to a specific embodiment of the present invention;

[0042] FIG14 is a schematic diagram of the assembly of a beam structure and a driving device according to a specific embodiment of the present invention;

[0043] FIG15 is an exploded schematic diagram of a beam structure and a driving device according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0044] The following exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. If there are several specific embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of devices, products and / or methods consistent with some aspects of the present invention as described in the claims of the present invention.

[0045] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention. The singular forms "a", "an", "the" or "the" used in the specification and claims of the present invention are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0046] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, "one" or "an" and similar words do not indicate a quantity limitation, but rather indicate the existence of at least one. Unless otherwise specified, the words "front", "back", "upper", "lower" and similar words appearing in the present invention are only for the convenience of explanation and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprises" are open-ended expressions, meaning that the elements appearing before "include" or "comprises" include the elements appearing after "include" or "comprises" and their equivalents, which does not exclude that the elements appearing before "include" or "comprises" may also include other elements. If "several" appears in the present invention, it means two or more.

[0047] Please refer to Figures 1 to 15. This embodiment discloses a flexible photovoltaic tracking bracket, including a base structure, a beam structure, a driving 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 driving device. The driving 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 driving 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.

[0048] To facilitate the description of the embodiments of the present invention, please refer to Figure 1, in which the length direction of the photovoltaic component 100, that is, the left-right direction or transverse direction of the cable structure, is denoted as L; the width direction of the photovoltaic component 100, that is, the longitudinal or extension direction of the cable structure, is denoted as W; the thickness direction of the photovoltaic component 100, that is, the up-down direction of the cable structure, is denoted as H to assist in the explanation, wherein the three directions in Figure 1 are perpendicular to each other.

[0049] Please refer to Figures 1, 2, 5, 7 and 8. The cable structure includes component cables and stabilizing cables. The stabilizing cables are located below the component cables. The stabilizing cables here are relatively below the component cables. When the bracket is located on a slope or a mountain, the stabilizing cables are located obliquely below the component cables, which is also within the protection scope of this technical solution. The component cable is used to be fixedly connected to the photovoltaic component 100; further, in this embodiment, at least two component cables and stabilizing cables are respectively provided; the component cable includes a first component cable 11 and a second component cable 12 arranged along the left-right direction (L direction), and the stabilizing cable includes a first stabilizing cable 13 and a second stabilizing cable 14 arranged along the left-right direction (L direction), the first component cable 11 and the second component cable 12 are arranged in parallel, and the support frame 20 is installed on the inner side of 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-shaped arc bent to the upper right, and / or the second stabilizing cable 14 is an arc-shaped arc bent to the upper left, that is, in the length direction (L direction) of the photovoltaic component 100, the first stabilizing cable 13 and the second stabilizing cable 14 are in an arc-shaped arc bent toward the outside of the component cable, as shown in Figure 7; in the thickness direction (H direction) of the photovoltaic component 100, the first stabilizing cable 13 and the second stabilizing cable 14 are in an arc-shaped arc bent upward, as shown in Figures 1 and 5. The specific arc size and curvature radius are adjusted according to the on-site environmental conditions and bearing capacity requirements of the project site.

[0050] With such an arrangement, when the component cable rotates under the drive of the driving device, the prestressed force 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 component 100 can overcome or offset the torque formed by the center of gravity of the photovoltaic component 100 not being at the center of rotation. If this torque is not overcome, after a period of use, the photovoltaic component 100 will be twisted, so that the photovoltaic components 100 in the middle position and those close to the base structure are not in the same plane, affecting the power generation. The technical solution of the present invention can ensure that all photovoltaic components 100 are in the same plane; and 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 component and support the photovoltaic component 100 upward to overcome its gravity, thereby improving the wind resistance.

[0051] Here, the first stabilizing cable 13 is curved upward to the right, while the second stabilizing cable 14 is curved upward to the left. This is because the first stabilizing cable 13 is located on the left, while the second stabilizing cable 14 is located on the right. If the left-right positions of the first and second stabilizing cables 13, 14 are simply reversed, with the first stabilizing cable 13 located on the right and the second stabilizing cable 14 located on the left, the first stabilizing cable 13 will be curved upward to the left, while the second stabilizing cable 14 will be curved upward to the right. These two technical features or solutions should be considered equivalent.

[0052] In this embodiment, the component cables are located between the first stabilizing cables 13 and the second stabilizing cables 14, as shown in FIG7 , when viewed in a direction perpendicular to the plane in which the first component cables 11 and the second component cables 12 lie. This arrangement ensures that the cable structure maintains good stability even within a wide rotational range, preventing the entire row of photovoltaic modules 100 from twisting, thereby ensuring power generation. Furthermore, the greater relative distance between the stabilizing cables and the component cables improves the torsional resistance of the entire cable structure. Here, "the component cables are located between the first stabilizing cables 13 and the second stabilizing cables 14" means that the two component cables are completely located laterally between the first stabilizing cables 13 and the second stabilizing cables 14, or that the two component cables are located between the maximum lateral distance D between the first stabilizing cables 13 and the second stabilizing cables 14, as shown in FIG8 .

[0053] In another embodiment, viewed in a direction perpendicular to the plane where the first component cable 11 and the second component cable 12 are located, the first stabilizing cable 13 and the second stabilizing cable 14 are located between the two component cables (the first component cable 11 and the second component cable 12).

[0054] In this embodiment, in the cross section of the cable structure, i.e., the cross section along the ZZ line in Figures 1 and 7, the first stabilizing cable 13 and the second stabilizing cable 14 are 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 force of the flexible photovoltaic tracking bracket rotating in the east-west direction (L direction) is balanced.

[0055] Furthermore, referring to Figures 3, 4, and 9, at the connection between the cable structure and the beam structure, the stabilizing cables are 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 and the first component cable 11 being at the same height, and the second stabilizing cable 14 and the second component cable 12 being at the same height. Where the photovoltaic module 100 is mounted 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 cables at the connection with the beam structure to simultaneously exert an upward supporting force and an inward tightening force on the stabilizing cables between adjacent beam structures, preventing the stabilizing cables from easily expanding outward due to the outward location of the central bend, thereby further improving the overall stability of the structure and the smoothness of the cable structure's rotation.

[0056] 3 , 9 , and 11 , the cable structure further includes an anchor 15, through which the ends of the component cable and the stabilizing cable are secured to the beam structure. Anchor 15 comprises a jacket 151, a fixing cylinder 152, a locking cylinder 153, a connecting tube 154, and a mounting tube 155. Jacket 151 clamps the component cable or stabilizing cable. Fixing cylinder 152 fits over the outer periphery of jacket 151 and abuts the beam structure. Locking cylinder 153 is fixedly connected to fixing cylinder 152 and locks jacket 151 to secure the component cable or stabilizing cable. Connecting tube 154 is connected to the end of locking cylinder 153 remote from fixing cylinder 152. Mounting tube 155 is fixed to the end of connecting tube 154 remote from locking cylinder 153. The component cable or stabilizing cable is at least partially exposed on the side of mounting tube 155 remote from connecting tube 154. Furthermore, the jacket 151 is provided separately to clamp the component cable or stabilizing cable on opposite radial sides thereof. The outer wall of the fixing cylinder 152 is provided with an external thread, and the inner wall of the locking cylinder 153 is provided with a corresponding internal thread, so that the two are fixedly connected and pressure is applied to the jacket 151 located within the fixing cylinder 152 to lock the component cable or stabilizing cable. The use of the anchor 15 to fix the ends of the component cable and stabilizing cable facilitates applying and maintaining an outward tension force at both ends during installation of the component cable and stabilizing cable, thereby tensioning the component cable and stabilizing cable. The component cable and stabilizing cable both have tension forces toward their respective ends, which can improve the stability of the cable structure and the support for the photovoltaic module 100.

[0057] Referring to Figures 1, 2, 5, 6, 7, and 10, a support frame 20 is mounted on the cable structure and spaced between adjacent beam structures to connect the module 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 sidebar 23, and a second sidebar 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 that of the second crossbar 22. The first sidebar 23 and the second sidebar 24 respectively connect the same-side ends of the first crossbar 21 and the second crossbar 22. Furthermore, the first cross bar 21 connects the first component cable 11 and the second component cable 12, the second cross bar 22 connects the first stabilizing cable 13 and the second stabilizing cable 14, the first side bar 23 connects the end of the first cross bar 21 close to the first component cable 11 and the end of the second cross bar 22 close to the first stabilizing cable 13, and the second side bar 24 connects the end of the first cross bar 21 close to the second component cable 12 and the end of the second cross bar 22 close to the second stabilizing cable 14. Furthermore, the quadrilateral formed by the first crossbar 21, the second crossbar 22, the first sidebar 23, and the second sidebar 24 is a trapezoid, and the angles between the first sidebar 23 and the second sidebar 24 and the second crossbar 22 are each less than 90°. In some embodiments, the angles between the first sidebar 23 and the second crossbar 22 and the angles between the second sidebar 24 and the second crossbar 22 are equal, that is, the trapezoid formed by the first crossbar 21, the second crossbar 22, the first sidebar 23, and the second sidebar 24 is an isosceles trapezoid, which is a symmetrical structure. In other embodiments, the angles between the first sidebar 23 and the second crossbar 22 and the angles between the second sidebar 24 and the second crossbar 22 are unequal. With this arrangement, when the module cable on which the photovoltaic module 100 is mounted has an excessively large inclination angle, the first sidebar 23 and the second sidebar 24 can effectively support the module cable and the photovoltaic module 100, preventing the photovoltaic module 100 from sagging and thus twisting, thereby improving the stability of the support structure.

[0058] Further, referring to Figures 1, 2, 5, 6, 7 and 10, 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 arranged in a quadrilateral formed by the first cross bar 21, the second cross bar 22, the first side bar 23 and the second side bar 24, for strengthening the structural strength and stability of the support frame 20. In this embodiment, the first reinforcing rod 25 connects the first cross bar 21 and the second cross bar 22, and the second reinforcing rod 26 also connects the first cross bar 21 and the second cross bar 22. One end of the first reinforcing rod 25 connected to the second cross bar 22 is close to the first side bar 23, and one end of the second reinforcing rod 26 connected to the second cross bar 22 is close to the second side bar 24. One end of the first reinforcing rod 25 connected to the first cross bar 21 and one end of the second reinforcing rod 26 connected to the first cross bar 21 are close to each other and are located in the middle of the first cross bar 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 are asymmetrically arranged, and one or more reinforcing rods may be set; this application does not limit the number and setting form of the reinforcing rods, and they can be set according to specific actual conditions.

[0059] In some embodiments, the support frame 20 is a non-quadrilateral with a cross structure; in other embodiments, the support frame 20 is also configured as a three-dimensional structure. As long as the support frame 20 connects the component cable and the stabilizing cable in a cross section along the thickness direction of the photovoltaic component 100, it can play the same role.

[0060] In this embodiment, each rod of the support frame 20 is made of U-shaped steel to facilitate the mutual connection between the rods, and holes are provided to facilitate the installation of fasteners for fixation.

[0061] Please refer to Figures 2, 6, 12 and 13. The support frame 20 is connected to the cable structure through a connecting member 16. The connecting member 16 includes a buckle 161, a block 162 and a bolt 163. The buckle 161 and the block 162 are fixedly connected by the bolt 163, and the buckle 161 and the 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 provided at both ends of the upper arc portion 1611. The block 162 includes a lower arc portion 1621 and two fourth through-holes 1622 provided 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, and a bolt 163 is used to lock the other side of the block 162 to the outer periphery of the fixing portion 1612 and abut the block 162, thereby achieving the fixation of the connecting member 16 and the connection between the support frame 20 and the cable structure. In this embodiment, a connecting member 16 is provided on the first cross bar 21 and the second cross bar 22, and the through hole 164 of the connecting member 16 on the first cross bar 21 is located on the side of the first cross bar 21 relatively away from the second cross bar 22, and the through hole 164 of the connecting member 16 on the second cross bar 22 is located on the side of the second cross bar 22 away from the first cross bar 21, that is, in the thickness direction of the photovoltaic component 100, the support frame 20 is located between the component cable and the stabilizing cable.

[0062] Referring to Figures 1, 5, and 7, a plurality of support frames 20 are arranged at intervals along the extension direction (W 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 either side of the first support frame 201 along the extension direction (W direction) of the cable structure. The area of ​​the first support frame 201 is larger than the area of ​​the second support frames 202. The plurality of second support frames 202 include two first sub-support frames 203 and two second sub-support frames 204. The two first sub-support frames 203 are located on either side 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 either side of the first support frame 201 and are symmetrical with respect to the first support frame 201. The second sub-support frames 204 are arranged away from the first sub-support frames 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 transverse 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 .

[0063] Referring to Figures 1, 3, 4, 5, 6, 9, 14, and 15, 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. The beam structure is mounted 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 drive device includes a rotary drive motor 51 and a motor 52. The motor 52 provides power for 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 the inclined beam 42 and the rotary drive motor 51 mounted between the two mounting plates 411, and the rotary drive motor 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 motor 51 has a third mounting hole 511. The rotating shaft 43 passes through the first mounting hole 412, the second mounting hole 421, and the third mounting hole 511, and the inclined beam 42 and the rotary drive motor 51 are coaxially mounted on the base 41, so that the rotary drive motor 51 can drive the inclined beam 42 to rotate on the base 41 about the rotating shaft 43. The drive device also includes a control box 53, which is fixed to the inclined beam 42 to control the rotary drive motor 51. The control box 53 can be fixedly connected to the inclined beam 42 via a clamp. The wind-resistant component 32 includes a wind-resistant column 321, a wind-resistant rope 322 and a wind-resistant cross bar 323. The wind-resistant column 321 is fixed to the ground, the wind-resistant cross bar 323 is connected to the component rope through a connector 17, and the wind-resistant rope 322 connects the wind-resistant column 321 and the wind-resistant cross bar 323. The wind-resistant component 32 can effectively resist negative wind.

[0064] The flexible photovoltaic tracking bracket of this embodiment has obvious advantages compared with the traditional triangular support. A four-cable structure is adopted, and a component cable for supporting the photovoltaic component 100 and a stabilizing cable located below the component cable are provided. The stabilizing cable includes a first stabilizing cable 13 and a second stabilizing cable 14 arranged along the left-right direction (L direction). The first stabilizing cable 13 is an arc curved to the upper right, and / or the second stabilizing cable 14 is an arc curved to the upper left. When the component cable rotates under the drive of the driving device, the prestressed force of the bottom stabilizing cable (such as the first stabilizing cable 13) 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 component 100 can overcome the torque formed by the center of gravity of the entire system not being at the rotation center, thereby ensuring the stability of the entire row of photovoltaic components 100, so that all photovoltaic components 100 installed on the component cable are on the same plane and are not easily twisted, thereby ensuring the power generation. It can also overcome the force of the component's own weight to make the outer edges of all components flush and beautiful in appearance. The other stabilizing cable (such as the second stabilizing cable 14) can generate a force to resist the wind applied to the front of the component and support the photovoltaic component 100 upward to overcome its gravity, thereby improving the wind resistance. The present application can also improve the smoothness of the rotation of the entire cable structure, reduce the force on the inclined beam 42, save materials for the inclined beam 42, reduce costs, and can also reduce the motor current to ensure the service life of the motor.

[0065] Please refer to Figures 1, 3, 4, 5, 14 and 15. This embodiment discloses a flexible photovoltaic tracking bracket with four-span components in each row, including five columns 31. Each span component bracket is provided with two groups of wind-resistant components 32 and five trapezoidal support frames 20, including a first support frame 201 and two groups of second support frames 202 symmetrically arranged on both sides of the first support frame 201, each group 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 configured as a spiral anchor to sink into the ground more firmly. The two ends of the component cable and the stabilizing cable are respectively fixed on 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; and for the inclined beam 42 on the mid-span column 31, the component cable and the stabilizing cable are limited by the connecting piece 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 piece 422. The two extension pieces 422 are fixed at the two ends of the inclined beam 42, and the component cable and the stabilizing cable are fixed to the extension piece 422 through the connecting piece 16.

[0066] In summary, compared with the prior art, the flexible photovoltaic tracking bracket of the present invention has the following advantages: First, it reduces the eccentric torque generated by the component when it rotates at a certain angle, making the component less likely to twist, ensuring that the entire row of components is located in the same plane, and also reducing the current of the rotary motor, avoiding current overcurrent during operation, and extending the service life of the motor; second, it improves stability and aesthetics. Compared with the traditional triangular support, it not only improves the stability of the structure, but also makes the edges of the entire row of components located in a straight line, improving the appearance of the components; third, it enables the entire system to ensure better mechanical properties and stability under the condition of reasonable manufacturing cost. In summary, the flexible photovoltaic tracking bracket of the present invention improves the stability and reliability of the photovoltaic bracket by solving the problems existing in the traditional flexible bracket, and has high practical value.

[0067] 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 technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be covered by the scope of the claims of the present invention.

Claims

1. A flexible photovoltaic tracking bracket, comprising: The basic structure is fixed to the ground at intervals; a beam structure installed on the base structure; a driving device, mounted on the beam structure, for driving the beam structure to rotate around an axis; A cable structure connecting adjacent beam structures, the cable structure comprising a component cable and a stabilizing cable, the stabilizing cable being located below the component cable, the component cable being used for fixed connection with the photovoltaic component (100), the component cable comprising a first component cable (11) and a second component cable (12) arranged in a left-right direction, and the stabilizing cable comprising a first stabilizing cable (13) and a second stabilizing cable (14) arranged in a left-right direction; a support frame (20) connected to the component cables and the stabilizing cables; The first stabilizing cable (13) is in the shape of an arc that bends to the upper right, and / or the second stabilizing cable (14) is in the shape of an arc that bends to the upper left.

2. The flexible photovoltaic tracking bracket according to claim 1, wherein: Viewed in a direction perpendicular to the plane where the first component cable (11) and the second component cable (12) are located, the component cable is located between the first stabilizing cable (13) and the second stabilizing cable (14).

3. The flexible photovoltaic tracking bracket according to claim 1, wherein: In the cross section of the cable structure, the first stabilizing cable and the second stabilizing cable are symmetrical with respect to the perpendicular midline 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, wherein: The support frame (20) includes a first cross bar (21), a second cross bar (22), a first side bar (23) and a second side bar (24), wherein the first cross bar (21) connects the first component cable (11) and the second component cable (12), the second cross bar (22) connects the first stabilizing cable (13) and the second stabilizing cable (14), the first side bar (23) connects an end of the first cross bar (21) close to the first component cable (11) and an end of the second cross bar (22) close to the first stabilizing cable (13), and the second side bar (24) connects an end of the first cross bar (21) close to the second component cable (12) and an end of the second cross bar (22) close to the second stabilizing cable (14).

5. The flexible photovoltaic tracking bracket according to claim 4, wherein: The plurality of support frames (20) are arranged at intervals along the extension direction of the cable structure, and 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) arranged on both sides of the first support frame (201) along the extension direction of the cable structure, wherein 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, wherein: At the connection between the cable structure and the beam structure, the stabilizing cable is located between the first cable assembly (11) and the second cable assembly (12).

7. The flexible photovoltaic tracking bracket according to claim 1, wherein: The cable structure further comprises an anchor (15), the ends of the component cable and the stabilizing cable are fixed to the beam structure via the anchor (15), and the component cable and the stabilizing cable both have tensioning forces toward their respective ends.

8. The flexible photovoltaic tracking bracket according to claim 1, wherein: The support frame (20) is connected to the cable structure via a connecting member (16); the connecting member (16) comprises a buckle (161), a block (162) and a bolt (163); the buckle (161) and the block (162) are fixedly connected via the bolt (163); and the buckle (161) and the block (162) form a through hole (164) for the component cable and the stabilizing cable to pass through.

9. The flexible photovoltaic tracking bracket according to claim 1, wherein: The basic structure comprises columns (31) and wind-resistant components (32), wherein the wind-resistant components (32) are arranged at intervals between adjacent columns (31), and the beam structure is installed on the columns (31).

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

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