Photovoltaic main beam, photovoltaic bearing, photovoltaic support assembly and photovoltaic system

Abstract

NOT VISIBLE DUE TO STATUS OF PATENT

Description

Photovoltaic main beams, photovoltaic bearings, photovoltaic support components and photovoltaic systems

[0001] This application claims priority to the Chinese patent applications filed with the Patent Office of China on February 8, 2024, with application number 202410176061.7 and application name “A photovoltaic main beam, photovoltaic bearing and photovoltaic system”; and filed with the Patent Office of China on May 28, 2024, with application number 202410667736.8 and application name “A photovoltaic main beam, photovoltaic bracket assembly and photovoltaic system”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to, but are not limited to, the technical field of photovoltaic tracking brackets, and in particular to a photovoltaic main beam, a photovoltaic bearing, a photovoltaic bracket assembly, and a photovoltaic system. Background Art

[0003] At present, the pain points of photovoltaic tracking systems in the industry are mainly concentrated in the instability of photovoltaic systems under strong wind conditions. Under strong wind conditions, due to the large area of ​​photovoltaic modules, photovoltaic modules need to withstand large wind loads. When the wind load is transmitted to the photovoltaic bracket, it generates a large force on the photovoltaic bracket, which puts a great test on the stability of the structure. The mainstream solution on the market is to reduce the wind force on the photovoltaic modules by placing them flat or at a low angle, and use the self-locking function of the drive mechanism to lock the photovoltaic main beam. However, under this working condition, the resonance causes greater damage to the photovoltaic modules, and at the same time causes the top structure of the drive column to be subjected to concentrated force, which can easily cause structural damage. Summary of the Invention

[0004] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0005] In view of the above problems existing in the prior art, a photovoltaic main beam, a photovoltaic bearing, a photovoltaic bracket assembly and a photovoltaic system are provided, which can effectively solve the problems in the background technology.

[0006] The specific technical solutions are as follows:

[0007] A photovoltaic support assembly for a photovoltaic system, mainly consisting of a photovoltaic main beam, a photovoltaic bearing, and a bearing seat;

[0008] The photovoltaic main beam includes a main beam body and a first limit portion provided on the main beam body. In a cross section of the photovoltaic main beam, the distance between the first limit portion and the center of the main beam body is greater than the distance between the rest of the photovoltaic main beam and the center of the main beam body.

[0009] The photovoltaic bearing is formed into an annular structure, and a limiting groove cooperating with the first limiting portion is provided on the photovoltaic bearing. The photovoltaic main beam is passed through the inner mounting hole of the photovoltaic bearing, and the first limiting portion is passed through the limiting groove.

[0010] A bearing mounting hole is provided on the bearing seat and passes through the bearing mounting hole in its axial direction, and the photovoltaic bearing is rotatably arranged in the bearing mounting hole. A second limiting portion is provided at a position adjacent to the bearing mounting hole on the bearing seat. The second limiting portion is configured to cooperate with the first limiting portion to limit the rotation of the photovoltaic bearing and the photovoltaic main beam within a preset angle range when the photovoltaic bearing rotates.

[0011] In some embodiments, the first limiting portion is integrally formed with the main beam body, and the longitudinal cross-section of the photovoltaic main beam includes a first arc segment, a second arc segment, and a transition segment between the first arc segment and the second arc segment. The first arc segment and the transition segment constitute the main beam body, and the second arc segment is the first limiting portion. The distance between the second arc segment and the center of the main beam body is recorded as L1, the distance between the first arc segment and the center of the main beam body is recorded as L2, and the distance between the transition section and the center of the main beam body is recorded as L3, L1>L2 and L1>L3.

[0012] In some embodiments, the first limiting portion and the main beam body are separate structures, and the first limiting portion is formed as a limiting connector connected to the outer peripheral wall of the main beam body. The distance between the far end of the limiting connector away from the main beam body and the center of the main beam body is greater than the distance between any point on the outer peripheral wall of the main beam body and the center of the main beam body. For example, the main beam body can be set to a circular tube, a rectangular tube or a polygonal tube, and the limiting connector can be set to a triangular prism or a rectangular parallelepiped structure.

[0013] In some embodiments, the first limiting portion includes a first main beam limiting portion and a second main beam limiting portion. The first main beam limiting portion and the second main beam limiting portion are symmetrically formed on the main beam body, and the limiting groove is formed in the inner mounting hole. The overall shape of the inner mounting hole and the limiting groove matches the outer contour of the photovoltaic main beam.

[0014] In some embodiments, the first limiting portion includes a first main beam limiting portion and a second main beam limiting portion, the first main beam limiting portion and the second main beam limiting portion are symmetrically formed on the main beam body, the limiting groove includes a first sub-limiting groove and a second sub-limiting groove, the first main beam limiting portion and the second main beam limiting portion are correspondingly arranged in the first sub-limiting groove and the second sub-limiting groove.

[0015] In some embodiments, the second limiting portion includes a first bearing seat limiting portion and a second bearing seat limiting portion arranged symmetrically. The first bearing seat limiting portion cooperates with the first main beam limiting portion to limit when the photovoltaic bearing rotates to a first preset angle, and the second bearing seat limiting portion cooperates with the second main beam limiting portion to limit when the photovoltaic bearing rotates to a second preset angle.

[0016] In some embodiments, there are two first bearing limit portions, and when the photovoltaic bearing rotates to a first preset angle, the first bearing limit portion abuts against the first main beam limit portion and the second main beam limit portion one by one respectively; there are two second bearing limit portions, and when the photovoltaic bearing rotates to a second preset angle, the second bearing limit portion abuts against the first main beam limit portion and the second main beam limit portion one by one respectively.

[0017] In some embodiments, the bearing seat includes a first half seat and a second half seat, the first half seat and the second half seat are arranged axially at intervals along the photovoltaic main beam, and the photovoltaic bearing is clamped between the first half seat and the second half seat in the axial direction.

[0018] Alternatively, one end of the first half seat can be pivotally connected to one end of the second half seat, and when the photovoltaic bearing is arranged on the first half seat and the second half seat, the other end of the first half seat is locked and connected to the other end of the second half seat.

[0019] A photovoltaic main beam for a photovoltaic support assembly, wherein the photovoltaic main beam is passed through a bearing seat of the photovoltaic support assembly, the bearing seat is provided with a second limiting portion, and further comprises:

[0020] Main beam body;

[0021] a first limiting portion, the first limiting portion extending axially along the main beam body and protruding outward from the main beam body in a radial direction of the main beam body;

[0022] wherein at least a portion of the first limiting portion extends out of the bearing seat to cooperate with the second limiting portion;

[0023] In the cross section of the photovoltaic main beam, the distance between the first limiting portion and the center of the main beam body is greater than the distance between the rest of the photovoltaic main beam and the center of the main beam body.

[0024] In some embodiments, the first limiting portion is integrally formed with the main beam body, and the longitudinal cross-section of the photovoltaic main beam includes a first arc segment, a second arc segment, and a transition segment between the first arc segment and the second arc segment. The distance between the second arc segment and the center of the main beam body is recorded as L1, the distance between the first arc segment and the center of the main beam body is recorded as L2, and the distance between the transition segment and the center of the main beam body is recorded as L3, L1>L2 and L1>L3.

[0025] In some embodiments, the first limiting portion and the main beam body are separate structures, and the first limiting portion is formed as a limiting connecting piece connected to the outer peripheral wall of the main beam body. The limiting connecting piece is provided with a fitting surface suitable for abutting against the outer peripheral wall of the main beam body. The limiting connecting piece extends axially along the outer peripheral wall of the main beam body and protrudes from the outer peripheral wall of the main beam body in the radial direction.

[0026] A photovoltaic bearing for a photovoltaic bracket assembly, the photovoltaic bracket assembly has a photovoltaic main beam, the photovoltaic main beam is provided with a first limiting portion, the photovoltaic bearing is arranged as an integrated structure or a split combination structure, the outer contour of the photovoltaic bearing is formed into a circle and the inner contour of the photovoltaic bearing defines an inner mounting hole suitable for the photovoltaic main beam to pass through, the inner mounting hole is provided with a limiting groove suitable for the first limiting portion to pass through, the groove wall of the limiting groove is not less than the distance from the hole wall of the inner mounting hole to the center of the photovoltaic bearing in the radial direction, when the photovoltaic bearing is arranged as a split combination mechanism, it is composed of a first bearing component and a second bearing component of a semi-bearing structure, and the two are combined to form a photovoltaic bearing with an annular structure.

[0027] A photovoltaic system includes the photovoltaic support assembly of the above-mentioned photovoltaic system, and also includes a driving column, a non-driving column, and a photovoltaic assembly. A driving mechanism is fixedly installed on the top of the driving column, a bearing seat is fixedly connected to the top of the non-driving column, and the photovoltaic assembly is fixedly installed on the top of the photovoltaic main beam.

[0028] Still other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The embodiments of the present application will be described more fully with reference to the accompanying drawings, which are for illustration and clarification only and are not intended to limit the scope of the present application.

[0030] FIG1 is a structural diagram of a photovoltaic main beam provided in an embodiment of the present application;

[0031] FIG2 is a structural diagram of a bearing provided in an embodiment of the present application;

[0032] FIG3 is a structural diagram of a bearing provided in an embodiment of the present application;

[0033] FIG4 is an exploded view of a photovoltaic main beam provided in an embodiment of the present application;

[0034] FIG5 is an exploded view of a photovoltaic main beam provided in an embodiment of the present application;

[0035] FIG6 is an exploded view of a photovoltaic support assembly of a photovoltaic system provided in an embodiment of the present application;

[0036] FIG7 is an exploded view of a photovoltaic support assembly of a photovoltaic system provided by an embodiment of the present application;

[0037] FIG8 is a front view of FIG7;

[0038] FIG9 is an exploded view of a photovoltaic bearing and a bearing seat assembly provided in an embodiment of the present application;

[0039] FIG10 is a structural diagram of a photovoltaic support assembly of a photovoltaic system provided in an embodiment of the present application;

[0040] FIG11 is a structural diagram of a photovoltaic support assembly of a photovoltaic system provided by an embodiment of the present application;

[0041] FIG12 is a front view of a photovoltaic support assembly of a photovoltaic system provided by an embodiment of the present application;

[0042] FIG13 is an exploded view of a photovoltaic support assembly of a photovoltaic system provided by an embodiment of the present application;

[0043] FIG14 is a structural diagram of a photovoltaic support assembly of a photovoltaic system provided by an embodiment of the present application;

[0044] FIG15 is a structural diagram of a photovoltaic support assembly of a photovoltaic system provided by an embodiment of the present application in a flat state;

[0045] FIG16 is a structural diagram of a photovoltaic support assembly of a photovoltaic system provided by an embodiment of the present application, when the photovoltaic support assembly is rotated to a first preset angle;

[0046] FIG17 is a structural diagram of a photovoltaic support assembly of a photovoltaic system provided by an embodiment of the present application, when the photovoltaic support assembly is rotated to a second preset angle;

[0047] FIG18 is a design diagram of an upper limit connector of a main beam body in a photovoltaic main beam for a photovoltaic bracket assembly provided in an embodiment of the present application;

[0048] FIG19 is a structural diagram of a non-driven column portion of a photovoltaic system provided by an embodiment of the present application;

[0049] FIG20 is a structural diagram of a photovoltaic system provided in an embodiment of the present application;

[0050] The above-mentioned figure marks represent: 1. photovoltaic main beam; 10. main beam body; 11. first limiting portion; 111. limiting connector; 1110. screw; 1111. countersunk through hole; 112. fitting surface; 113. first main beam limiting portion; 114. second main beam limiting portion; 12. first arc segment; 13. second arc segment; 14. transition segment; 2. photovoltaic bearing; 20. inner mounting hole; 21. limiting groove; 211. first sub-limiting groove; 212. second sub-limiting groove Groove; 22. First bearing member; 23. Second bearing member; 3. Bearing seat; 30. Bearing mounting hole; 31. Second limiting portion; 310. First bearing seat limiting portion; 311. Second bearing seat limiting portion; 32. Baffle; 33. Limiting rib; 34. First half seat; 35. Second half seat; 36. Connecting ear plate; 37. Pin; 38. Limiting groove; 4. Bearing seat mounting seat; 5. Non-driving column; 6. Driving column; 7. Photovoltaic module; 8. Driving mechanism.

[0051] Implementation Methods of the Application

[0052] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.

[0053] The present application will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present application.

[0054] Example 1

[0055] As shown in Figures 7 to 14, Example 1 provides a specific implementation of a photovoltaic bracket assembly of a photovoltaic system, which specifically includes: a photovoltaic main beam 1, a photovoltaic bearing 2, and a bearing seat 3. The photovoltaic main beam 1 includes a main beam body 10 and a first limiting portion 11 fixedly connected to the main beam body 10. The main beam body 10 and the first limiting portion 11 form an integrated structure or a split structure. On the cross section of the photovoltaic main beam 1, the distance between the first limiting portion 11 and the center of the main beam body 10 is greater than the distance from the rest of the photovoltaic main beam 1 to the center of the main beam body 10. The first limiting portion 11 extends along the axial direction of the main beam body 10 and protrudes outward from the main beam body 10 in the radial direction.

[0056] The photovoltaic bearing 2 is configured as a ring-mounted structure, which can be either integrally formed or designed as a multi-section connection structure. An internal mounting hole 20 is provided inside the photovoltaic bearing 2, and a limiting groove 21 is provided inside the photovoltaic bearing 2 to cooperate with the first limiting portion 11. The photovoltaic main beam 1 passes through the internal mounting hole 20 of the photovoltaic bearing 2, and the first limiting portion 11 is passed through the limiting groove 21, that is, the internal mounting hole 20 inside the photovoltaic bearing 2 has the same shape as the outer contour of the main beam body 10, and the limiting groove 21 has the same shape contour as the first limiting portion 11. The limiting groove 21 and the internal mounting hole 20 form a structure that matches the outer contour of the photovoltaic main beam 1.

[0057] The bearing seat 3 is used to support and install the photovoltaic bearing 2. The bearing seat 3 is provided with a bearing mounting hole 30 for installing the photovoltaic bearing 2 which passes through in the axial direction. The photovoltaic bearing 2 can rotate relative to the bearing seat 3. A second limiting portion 31 is provided on the bearing seat 3 near the bearing mounting hole 30. When the photovoltaic bearing 2 rotates, the second limiting portion 31 cooperates with the first limiting portion 11 to limit the rotation of the photovoltaic main beam 1 and the photovoltaic bearing 2 within a preset angle range. The preset angle range can be set to the common rotation angle range of the photovoltaic tracking bracket, such as plus or minus 60°, plus or minus 45°, etc.

[0058] As shown in Figure 1, optionally, the first limiting portion 11 and the main beam body 10 are integrally formed into a photovoltaic main beam 1. The longitudinal cross-section of the photovoltaic main beam 1 includes a first arc segment 12, a second arc segment 13 and a transition segment 14 between the first arc segment 12 and the second arc segment 13. The first arc segment 12 and the transition segment 14 form the main beam body 10, and the second arc segment 13 with a rounded structure forms the first limiting portion 11. The distance between the second arc segment and the center of the main beam body is recorded as L1, the distance between the first arc segment and the center of the main beam body 1 is recorded as L2, and the distance between the transition segment and the center of the main beam body is recorded as L3, L1>L2 and L1>L3.

[0059] Optionally, as shown in Figures 4 and 5, the photovoltaic main beam 1 is configured as a first limiting portion 11 and a main beam body 10 of a split structure. The first limiting portion 11 includes a symmetrically arranged first main beam limiting portion 113 and a second main beam limiting portion 114. The first limiting portion 11 is specifically configured as a limiting connector 111 connected to the main beam body 10. The limiting connector 111 is provided with a fitting surface 112 for abutting against the outer peripheral wall of the main beam body 10. The limiting connector 111 is fixedly connected to the main beam body 10 by a screw 1110. Preferably, a countersunk through hole 1111 for installing the screw 1110 is provided at the top of the limiting connector 111. During installation, the fitting surface 112 on the limiting connector 111 is fitted with the outer wall of the main beam body 10, and the limiting connector 111 is fixedly connected to the main beam body 10 by the screw 1110 passing through the countersunk through hole 1111 to form the photovoltaic main beam 1.

[0060] Optionally, when the main beam body 10 is set to a circular tube, the limiting connector 111 can be set to a triangular prism structure or a rectangular structure as shown in Figure 12. The center of the photovoltaic main beam 1 is the center of the cross section of the hollow circular tube, and the limiting connector 111 is the part that protrudes radially from the outer peripheral wall of the main beam body 10. Therefore, the distance between the far end of the limiting connector 111 away from the main beam body 10 and the center of the main beam body 10 must be greater than the distance between the rest of the photovoltaic main beam 1 and the center of the main beam body 10.

[0061] As shown in Figures 5, 11 and 18, when the main beam body 10 is set as a rectangular tube, the center of the main beam body 10 is the geometric center of the cross section of the rectangular tube. The shaded part in Figure 18 is the rectangular tube, and the dotted part is the limiting connector 111. The center point of the rectangular tube is located at the intersection of the two diagonals. The longest distance from the center point on the outer surface of the main beam body 10 (that is, the rest of the positions on the photovoltaic main beam 1 except the limiting connector) is the four corners of the outer wall of the rectangular tube main beam. When the main beam body 10 of the rectangular tube structure rotates, the maximum contour formed is the circle formed with the geometric center as the center and L2 as the radius in Figure 18. When the limiting connector 111 of the triangular prism structure is installed on the main beam body 10, it should be ensured that the fitting surface 112 on the limiting connector 111 is fixedly fitted and connected to the side of the rectangular tube, and the farthest distance on the limiting connector 111 The distance from one side of the outer wall of the main beam body 10 to the center point of the main beam body 10 (i.e., L1 in Figure 18) is greater than the distance between the center point of the main beam body 10 and any point on the outer wall of the main beam body 10, that is, L1 is greater than L2. As a preferred solution, L1 must be at least 2 mm longer than L2 to ensure that the limiting edge 33 on the bearing seat 3 can better block the limiting connector 111 on the main beam body 10. The annular range formed by the limiting connector 111 around the center of the main beam body 10 is greater than the annular range formed by the outer peripheral wall contour of the main beam body 10, ensuring that the limiting connector 111 can abut against the second limiting portion 31 within the preset angle range to form a limiting mechanism. In addition, the limiting connector 111 on the rectangular tube can be set to a triangular prism structure or a rectangular parallelepiped structure, or it can be set to other structures that meet the above conditions.

[0062] It should be determined that for main beam bodies 10 with other polygonal hollow structures, such as common main beams such as hexagonal tubes and octagonal tubes, or main beam bodies 10 with other cross-sectional structures, the selection method of their limiting connectors 111 is similar to that of the above-mentioned rectangular tube main beams.

[0063] As shown in Figures 13 and 14, in some optional embodiments, a limiting groove 38 is opened on the top of the bearing seat 3, and the first limiting portion 11 is configured as a ram's horn structure fixedly connected to the top of the main beam body 10 and installed inside the limiting groove 38. The first limiting portion 11 is fixedly connected to the outer wall of the main beam body 10 and extends out of the limiting groove 38. At this time, the second limiting portion 31 is configured as a groove wall on the limiting groove 38 in the axial direction of the bearing seat 3. When the photovoltaic main beam 1 rotates to the limit position, the first limiting portion 11 of the ram's horn structure contacts the groove wall to limit the position, which is used to prevent the photovoltaic main beam 1 from continuing to rotate.

[0064] In addition, optionally, the limiting connector 111 can adopt a solid structure. Since the side of the limiting connector 111 often needs to collide with the second limiting part 31 during long-term use, it is easy to cause damage to the surface anti-corrosion zinc layer. The limiting connector 111 with a solid structure can form a reinforcing rib structure at the connection with the main beam body 10 and the bearing seat 3, thereby improving the structural strength of the node at this location. At the same time, the anti-corrosion redundancy is large, and there is no problem of anti-corrosion failure.

[0065] In some optional embodiments, the photovoltaic bearing 2 is configured as an integrally molded structure as shown in Figure 2. For the photovoltaic bearing 2 with an integrally molded structure, during installation, the photovoltaic bearing 2 is sleeved on the photovoltaic main beam 1, and then the photovoltaic bearing 2 is installed on the bearing seat 3.

[0066] As shown in Figures 3 and 9, in some optional embodiments, the photovoltaic bearing 2 includes a first bearing member 22 and a second bearing member 23. The first bearing member 22 and the second bearing member 23 are both designed as semi-bearing structures. The first bearing member 22 and the second bearing member 23 are combined to form a photovoltaic bearing 2 by being connected by upper and lower snap-fit ​​connections or by being buckled left and right.

[0067] As shown in FIG. 4 and FIG. 5 , in some optional embodiments, the first limiting portion 11 is configured as a first main beam limiting portion 113 and a second main beam limiting portion 114 symmetrical about the main beam body 10 .

[0068] Optionally, the second limiting portion 31 is set to a symmetrically arranged first bearing limiting portion 310 and a second bearing limiting portion 311. When the photovoltaic main beam 1 and the photovoltaic bearing 2 rotate to a first preset angle, the first bearing limiting portion 310 abuts and cooperates with the first main beam limiting portion 113 to limit the position. When the photovoltaic main beam 1 and the photovoltaic bearing 2 rotate to a second preset angle, the second bearing limiting portion 311 abuts and cooperates with the second main beam limiting portion 114 to limit the position. The first preset angle and the second preset angle are the limit angles of clockwise and counterclockwise rotation of the photovoltaic tracking bracket.

[0069] Optionally, as shown in Figures 9 to 11, the second limiting portion 31 extends radially along the edge of the bearing mounting hole 30 to form a baffle 32, and the edge of the baffle 32 is formed as a limiting rib 33 that matches the contact surface of the first limiting portion 11.

[0070] More specifically, the contour structure of the limiting rib 33 is determined by the following method:

[0071] S1, rotate the photovoltaic main beam 1 to a horizontal position and determine the center point of the main beam body 10;

[0072] S2, with the center point as the center of the circle, rotate the photovoltaic main beam 1 clockwise to the first limit angle of the preset angle;

[0073] S3, determining a portion of the contour of the limiting edge 33 where the second limiting portion 31 abuts against the first limiting portion 11 based on the relative position of the second limiting portion 31 and the first limiting portion 11 in step S2;

[0074] S4, with the center point as the center of the circle, rotate the photovoltaic main beam 1 counterclockwise to the second limit angle of the preset angle;

[0075] S5, determining a partial contour of the limiting rib 33 where the second limiting portion 31 abuts against the first limiting portion 11 based on the relative position of the second limiting portion 31 and the first limiting portion 11 in step S4;

[0076] S6 , connecting the partial contours formed in steps S3 and S5 to form a limiting rib 33 .

[0077] As shown in Figure 9, in some optional embodiments, the bearing seat 3 is designed as a two-section split structure, and the bearing seat 3 includes a first half seat 34 and a second half seat 35. The first half seat 34 and the second half seat 35 are arranged at intervals along the axial direction of the photovoltaic main beam 1, and the photovoltaic bearing 2 is clamped between the first half seat 34 and the second half seat 35 in the axial direction. As shown in Figure 10, the first half seat 34 and the second half seat 35 are fixedly connected and combined to form the bearing seat 3.

[0078] As shown in Figures 7 and 8, in some optional embodiments, as shown in Figures 11 to 13, one end of the first half seat 34 can be pivotally connected to one end of the second half seat 35. When the photovoltaic bearing 2 is installed on the first half seat 34 and the second half seat 35, the other end of the first half seat 34 is locked and connected to the other end of the second half seat 35.

[0079] More specifically, connecting ear plates 36 are staggeredly arranged at the connection points of the first bearing member 22 and the second bearing member 23 , and the connecting ear plates 36 are connected by pins 37 , thereby combining the first bearing member 22 and the second bearing member 23 to form a photovoltaic bearing 2 .

[0080] In addition, since most of the bearings currently used in photovoltaic systems are made of ultra-high molecular weight polyethylene or other non-metallic materials with self-lubricating functions, although their self-lubricating function and cost advantages are obvious, their service life cannot meet the 25-year service life requirement and need to be replaced and maintained. The above-mentioned bearing seat 3 with a rotating connection structure composed of the first bearing part 22 and the second bearing part 23 is more convenient for replacing photovoltaic bearings 2 that have been severely worn after long-term use than the common one-piece bearing seat.

[0081] Example 2

[0082] As shown in Figure 1 and Figures 4 to 8, Example 2 discloses a specific implementation of a photovoltaic main beam for a photovoltaic bracket assembly, the photovoltaic main beam 1 is passed through the bearing seat 3 of the photovoltaic bracket assembly, and the bearing seat 3 is provided with a second limiting portion 31, the photovoltaic main beam is composed of a main beam body 10 and a first limiting portion 11, the first limiting portion 11 extends axially along the main beam body 10 and protrudes outward from the main beam body 10 along the radial direction of the main beam body 10, the main beam body 10 and the first limiting portion 11 are an integral structure or a split structure, on the cross section of the photovoltaic main beam 10, the distance between the first limiting portion 11 and the center of the main beam body 10 is greater than the distance from the rest of the photovoltaic main beam 1 to the center of the main beam body 10, and at least part of the first limiting portion 11 extends out of the bearing seat 3 to cooperate with the second limiting portion 31.

[0083] Optionally, as shown in Figures 1 and 6, the first limiting portion 11 is integrally formed with the main beam body 10, and the cross-section of the photovoltaic main beam 1 is designed to be in the shape of the internal mounting hole 20 of the bearing 2 as shown in Figures 2 or 3. The longitudinal cross-section of the photovoltaic main beam 1 includes a first arc segment 12, a second arc segment 13, and a transition segment 14 between the first arc segment 12 and the second arc segment 13. Preferably, the transition segment 14 is set as a straight segment, the first arc segment 12 and the transition segment 14 form the main beam body 10, and the second arc segment 13 with a rounded structure forms the first limiting portion 11. The distance between the second arc segment 13 and the center of the main beam body 10 is recorded as L1, the distance between the first arc segment 12 and the center of the main beam body 10 is recorded as L2, and the distance between the transition segment 14 and the center of the main beam body 10 is recorded as L3, L1>L2 and L1>L3.

[0084] Optionally, the first limiting portion 11 and the main beam body 10 are designed as a split structure, and the first limiting portion 11 is formed as a limiting connector 111 connected to the outer peripheral wall of the main beam body 10. The split structure only needs to install the limiting connector 111 on the part of the main beam body 10 at the top of the non-driving column 5, which has obvious cost advantages.

[0085] Optionally, as shown in Figures 4, 5, 7 and 8, the limiting connector 111 is provided with a fitting surface 112 suitable for abutting against the outer peripheral wall of the main beam body 10, and the limiting connector 111 extends axially along the outer peripheral wall of the main beam body 10 and protrudes from the outer peripheral wall of the main beam body 10 in the radial direction.

[0086] Alternatively, as shown in Figures 13 and 14, a limiting groove 38 is opened on the top of the bearing seat 3, and the first limiting portion 11 is set to be a ram's horn-shaped structure fixedly connected to the top of the main beam body 10 and installed inside the limiting groove 38. The first limiting portion 11 is fixedly connected to the outer wall of the main beam body 10 and extends out of the limiting groove 38 on the bearing seat 3 in the radial direction. At this time, the second limiting portion 31 is set to the groove wall of the limiting groove 38 in the circumferential direction of the bearing seat 3. When the photovoltaic main beam 1 rotates to the extreme position, the first limiting portion 11 of the ram's horn-shaped structure contacts the groove wall to limit the position, which is used to prevent the photovoltaic main beam 1 from continuing to rotate.

[0087] When the photovoltaic main beam 1 rotates, the second limiting part 31 installed on the bearing seat 3 is used to limit the rotation angle of the main beam body 10. The self-locking function of the driving mechanism 8 on the driving column 6 is combined with the bearing seats 3 with extreme angle limiting and blocking functions installed on multiple non-driving columns 5. The multiple second limiting parts 31 on multiple bearing seats 3 and the first limiting part 11 on the main beam body 10 work together to disperse the wind force to multiple bearing seats 3 and multiple columns, so that the overall photovoltaic system is more evenly stressed, better plays the role of strong wind protection, and improves the structural stability of the overall photovoltaic bracket.

[0088] Example 3

[0089] As shown in Figures 2 and 3, Example 3 discloses a specific implementation of a photovoltaic bearing for a photovoltaic bracket assembly, the photovoltaic bracket assembly has a photovoltaic main beam 1, the photovoltaic main beam 1 is provided with a first limiting portion 11, the photovoltaic bearing 2 is designed as an annular structure, the outer contour of the photovoltaic bearing 2 is formed into a circle and the inner contour of the photovoltaic bearing 2 is set to be an inner mounting hole 20 suitable for the photovoltaic main beam 1 to pass through, the inner mounting hole 20 is provided with a limiting groove 21 suitable for the first limiting portion 11 to pass through, wherein the groove wall of the limiting groove 21 is at a distance from the center of the photovoltaic bearing in the radial direction not less than the distance from the hole wall of the inner mounting hole 20 to the center of the photovoltaic bearing in the radial direction.

[0090] The photovoltaic bearing 2 forms an annular structure as a whole, the outer contour of the photovoltaic bearing 2 is formed into a circle and the inner contour of the photovoltaic bearing 2 defines an inner mounting hole 20 suitable for the photovoltaic main beam 1 to pass through, and the inner mounting hole 20 is provided with a limiting groove 21 suitable for the limiting connector 111 to pass through, wherein the groove wall of the limiting groove 21 is at a distance from the center of the photovoltaic bearing 2 in the radial direction not less than the distance from the hole wall of the inner mounting hole 20 to the center of the photovoltaic bearing 2 in the radial direction.

[0091] In some optional embodiments, as shown in FIG2 , the photovoltaic bearing 2 is an integrally formed structure.

[0092] In other optional embodiments, as shown in Figure 3, the photovoltaic bearing 2 includes a first bearing member 22 and a second bearing member 23. The first bearing member 22 and the second bearing member 23 are both semi-bearing structures, and the connection between the first bearing member 22 and the second bearing member 23 is snap-connected to form a photovoltaic bearing.

[0093] Example 4

[0094] As shown in Figures 19 to 20, a photovoltaic system includes the photovoltaic bracket assembly of the above-mentioned photovoltaic system, and also includes a driving column 6, a non-driving column 5, and a photovoltaic assembly 7. A driving mechanism 8 is fixedly installed on the top of the driving column 6, the bearing seat 3 is fixedly connected to the top of the non-driving column 5, and the photovoltaic assembly 7 is fixedly installed on the top of the photovoltaic main beam 1.

[0095] In some optional embodiments, the driving mechanism 8 is preferably configured as a worm gear reducer with a self-locking function, and the photovoltaic assembly 7 is fixedly installed on the photovoltaic main beam 1 through purlins or other structural connectors. The driving mechanism 8 generates power to drive the photovoltaic main beam 1 installed on the top of the driving column 6 to rotate, and drives the adjacent photovoltaic main beam 1 and the photovoltaic assembly 7 on the photovoltaic main beam 1 to rotate to achieve tracking of the solar radiation angle, thereby improving the power generation efficiency of the photovoltaic assembly 15.

[0096] As shown in Figure 15, taking the main beam body 10 of the circular tube structure as an example, when the photovoltaic module 7 is in a flat 0° state, the limit connector 111 is located on the left and right sides of the circular tube main beam, the bearing seat 3 is fixedly installed on the top of the non-drive column 5 through the bearing seat mounting seat 4, and the limit connector 111 is fixedly connected to the main beam body 10. When the driving mechanism 8 drives the main beam body 10 to rotate, the limit connector 111 fixedly connected to the main beam body 10 rotates synchronously. In the prior art, the photovoltaic systems installed in different latitudes have different rotation angle range parameters. The limit rib 33 is used to cooperate with the limit connector 111 to limit the rotation of the photovoltaic main beam 1 within a certain angle range. The certain angle range here refers to the rotation angle range of the photovoltaic system, such as the common plus or minus 60°, plus or minus 45°, etc. in the prior art. The angles of the baffle 32 and the limit rib 33 relative to the photovoltaic main beam 1 at a horizontal 0° can be designed according to actual working conditions.

[0097] The photovoltaic system rotates counterclockwise. Figure 16 is a state diagram of the entire photovoltaic system when it rotates to the counterclockwise angle limit position. At this time, the side of the limit connector 111 contacts the limit ribs 33 on the first half seat 34 and the second half seat 35. Since the contact surface formed at the connection between the limit connector 111 and the limit rib 33 coincides with the limit rib 33, the contact area between the side of the limit connector 111 and the limit rib 33 is increased. In addition, since baffles 32 and limit ribs 33 are provided on the front and rear side surfaces of the first half seat 34 and the second half seat 35, at the top of a single non-driving column 5, the limit connector 111 and the limit rib 33 form four contact limit surface structures, which, combined with the self-locking function of the worm gear reducer on the driving column 6, can effectively improve the support of the photovoltaic module 7 at the extreme angle, reduce damage to the photovoltaic module 7 and the photovoltaic bracket under strong wind conditions, and improve the stability and wind resistance of the overall structure.

[0098] Similarly, when the photovoltaic system rotates clockwise, Figure 17 is a state diagram of the entire photovoltaic system when it rotates to the clockwise angle limit position. At this time, the other side of the limiting connector 111 is in contact with the limiting ribs 33 on the first half seat 34 and the second half seat 35. At the top of the single non-driving column 5, the limiting connector 111 and the limiting ribs 33 form a contact limiting surface structure, which effectively improves the supporting force of the photovoltaic component 7 at the extreme angle, reduces the damage to the photovoltaic component 7 and the photovoltaic bracket under strong wind conditions, and improves the stability and wind resistance of the overall structure.

[0099] In summary, from the perspective of the overall photovoltaic system, for example, a single-row photovoltaic system composed of multiple non-driven columns 5 and one driven column 6, through the self-locking function of the driving mechanism 8 on the driving column 6, combined with the bearing seat 3 with extreme angle limiting and blocking function installed on multiple non-driven columns 5 and the photovoltaic main beam 1, the multiple limiting retaining edges 33 on the multiple bearing seats 3 work together to disperse the wind force to multiple bearing seats 3 and multiple columns, so that the overall photovoltaic system is more evenly stressed, better plays the role of strong wind protection, and improves the structural stability of the overall photovoltaic bracket.

[0100] The above description is only a preferred embodiment of the present application and does not limit the implementation mode and protection scope of the present application. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present application should be included in the protection scope of the present application.

Claims

1. A photovoltaic support assembly for a photovoltaic system, wherein: include: A photovoltaic main beam, comprising a main beam body and a first position-limiting portion provided on the main beam body, wherein the main beam body and the first position-limiting portion form an integral structure or a separate structure, and in a cross section of the photovoltaic main beam, the distance between the first position-limiting portion and the center of the main beam body is greater than the distance between the rest of the photovoltaic main beam and the center of the main beam body; A photovoltaic bearing, wherein the photovoltaic bearing is formed into an annular structure, the photovoltaic bearing is provided with a limiting groove cooperating with the first limiting portion, the photovoltaic main beam is passed through the inner mounting hole of the photovoltaic bearing, and the first limiting portion is passed through the limiting groove; The bearing seat is provided with a bearing mounting hole extending along its axial direction, and the photovoltaic bearing is rotatably arranged in the bearing mounting hole. A second limiting portion is provided at a position adjacent to the bearing mounting hole of the bearing seat, and the second limiting portion is configured to cooperate with the limiting connector to limit the rotation of the photovoltaic bearing and the photovoltaic main beam within a preset angle range when the photovoltaic bearing rotates.

2. The photovoltaic support assembly of the photovoltaic system according to claim 1, wherein: The first limiting portion is integrally formed with the main beam body. The longitudinal cross-section of the photovoltaic main beam includes a first arc segment, a second arc segment, and a transition segment between the first arc segment and the second arc segment. The distance between the second arc segment and the center of the main beam body is recorded as L1, the distance between the first arc segment and the center of the main beam body is recorded as L2, and the distance between the transition segment and the center of the main beam body is recorded as L3, L1>L2 and L1>L3.

3. The photovoltaic support assembly of the photovoltaic system according to claim 1, wherein: The first limiting portion and the main beam body are separate structures. The first limiting portion is formed as a limiting connecting piece connected to the outer peripheral wall of the main beam body. The distance between the far end of the limiting connecting piece away from the main beam body and the center of the main beam body is greater than the distance between any point on the outer peripheral wall of the main beam body and the center of the main beam body.

4. The photovoltaic support assembly of the photovoltaic system according to claim 3, wherein: The main beam body is formed into a circular tube, a rectangular tube or a polygonal tube structure, and the limiting connecting piece is formed into a triangular prism structure or a rectangular parallelepiped structure.

5. The photovoltaic support assembly of the photovoltaic system according to claim 1, wherein: The first limiting portion includes a first main beam limiting portion and a second main beam limiting portion, the first main beam limiting portion and the second main beam limiting portion are symmetrically formed on the main beam body, the limiting groove is formed in the inner mounting hole, the overall shape of the inner mounting hole and the limiting groove matches the outer contour of the photovoltaic main beam, the limiting groove includes a first sub-limiting groove and a second sub-limiting groove, the first main beam limiting portion and the second main beam limiting portion are correspondingly arranged in the first sub-limiting groove and the second sub-limiting groove.

6. The photovoltaic support assembly of the photovoltaic system according to claim 5, wherein: The second limiting portion includes a first bearing seat limiting portion and a second bearing seat limiting portion arranged symmetrically. The first bearing seat limiting portion cooperates with the first main beam limiting portion to limit when the photovoltaic bearing rotates to a first preset angle, and the second bearing seat limiting portion cooperates with the second main beam limiting portion to limit when the photovoltaic bearing rotates to a second preset angle.

7. The photovoltaic support assembly of the photovoltaic system according to claim 6, wherein: The second limiting portion extends radially along the edge of the bearing mounting hole to form a baffle, and the edge of the baffle is formed as a limiting rib that matches the contact surface of the first limiting portion.

8. The photovoltaic support assembly of the photovoltaic system according to claim 6, wherein: There are two first bearing limiters, and when the photovoltaic bearing rotates to the first preset angle, the first bearing limiters abut against the first main beam limiter and the second main beam limiter, respectively; There are two second bearing limiting portions. When the photovoltaic bearing rotates to the second preset angle, the second bearing limiting portions abut against the first main beam limiting portion and the second main beam limiting portion one by one.

9. The photovoltaic support assembly of the photovoltaic system according to claim 1, wherein: The bearing seat includes a first half seat and a second half seat, the first half seat and the second half seat are arranged at intervals along the axial direction of the photovoltaic main beam, and the photovoltaic bearing is clamped between the first half seat and the second half seat in the axial direction.

10. The photovoltaic support assembly of the photovoltaic system according to claim 1, wherein: The bearing seat includes a first half seat and a second half seat, one end of the first half seat is pivotally connected to one end of the second half seat, and when the photovoltaic bearing is arranged on the first half seat and the second half seat, the other end of the first half seat is locked and connected to the other end of the second half seat.

11. A photovoltaic main beam for a photovoltaic support assembly, wherein the photovoltaic main beam is passed through a bearing seat of the photovoltaic support assembly, and the bearing seat is provided with a second limiting portion, wherein: include: Main beam body; a first limiting portion, the first limiting portion extending axially along the main beam body and protruding outward from the main beam body in a radial direction of the main beam body; At least a portion of the first limiting portion extends out of the bearing seat to cooperate with the second limiting portion; In the cross section of the photovoltaic main beam, the distance between the first limiting portion and the center of the main beam body is greater than the distance between the rest of the photovoltaic main beam and the center of the main beam body.

12. The photovoltaic main beam for a photovoltaic support assembly according to claim 11, wherein: The first limiting portion is integrally formed with the main beam body. The longitudinal cross-section of the photovoltaic main beam includes a first arc segment, a second arc segment, and a transition segment between the first arc segment and the second arc segment. The distance between the second arc segment and the center of the main beam body is recorded as L1, the distance between the first arc segment and the center of the main beam body is recorded as L2, and the distance between the transition segment and the center of the main beam body is recorded as L3, L1>L2 and L1>L3.

13. The photovoltaic main beam for a photovoltaic support assembly according to claim 12, wherein: The first limiting portion and the main beam body are separate structures, and the first limiting portion is formed as a limiting connecting piece connected to the outer peripheral wall of the main beam body.

14. A photovoltaic bearing for a photovoltaic support assembly, wherein the photovoltaic support assembly has a photovoltaic main beam, and the photovoltaic main beam is provided with a first limiting portion, wherein: include: The photovoltaic bearing is configured as an integrated structure or a split combination structure, the outer contour of the photovoltaic bearing is formed into a circle and the inner contour of the photovoltaic bearing defines an inner mounting hole suitable for the photovoltaic main beam to pass through, the inner mounting hole is provided with a limiting groove suitable for the first limiting part to pass through, and the distance between the groove wall of the limiting groove and the center of the photovoltaic bearing in the radial direction is not less than the distance between the hole wall of the inner mounting hole and the center of the photovoltaic bearing in the radial direction.

15. A photovoltaic system, wherein: include: The photovoltaic support assembly of the photovoltaic system according to any one of claims 1 to 10 further includes a driving column, a non-driving column, and a photovoltaic assembly, wherein a driving mechanism is fixedly mounted on the top of the driving column, a bearing seat is fixedly mounted on the top of the non-driving column, and the photovoltaic assembly is fixedly mounted on the top of the photovoltaic main beam.