Photovoltaic support connection device, tracking support and photovoltaic system

Abstract

The present application relates to a photovoltaic support connection device, a tracking support and a photovoltaic system. The photovoltaic support connection device includes a support, a first connecting member, a mounting member and a second connecting member. The support is used to be fixedly installed on the top of a column; the first connecting member can be axially rotatably supported on the support, and one axial end of the first connecting member is used to connect the end of a main beam; the mounting member is fixedly installed on the support and is arranged opposite to the other axial end of the first connecting member, and the installation position of the mounting member on the support is adjustable in the height direction of the support; the second connecting member can be rotatably supported on the mounting member in any direction, one axial end of the second connecting member can be rotatably connected to the other axial end of the first connecting member in any direction, and the other axial end of the second connecting member is used to connect the end of another main beam. The photovoltaic support connection device of the present application connects the two main beams axially so that they can rotate in any direction relative to each other, which can avoid axial slippage of the main beams, limited span and obvious deflection.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to a photovoltaic bracket connection device, a tracking bracket and a photovoltaic system. Background Art

[0002] As the installed capacity of photovoltaic power stations continues to increase, land resources with good light resources and flat terrain are becoming increasingly scarce, and mountains, hills and other land with undulating terrain are becoming the main sites for photovoltaic power station construction. When building photovoltaic power stations on undulating terrain, traditional single-axis photovoltaic tracking brackets need to level and cut the site, or increase the height of the columns, resulting in a significant decrease in the overall economic performance of photovoltaic power station projects.

[0003] In the related art, multiple short brackets are spliced ​​to form a long bracket, and a multi-drive system is used. Each row of short brackets is equipped with a drive system to adapt to the undulating terrain. However, the rotating beams of multiple short brackets are disconnected from each other, which easily causes the axial slip of the rotating beams. In addition, the span at both ends of the rotating beams of the short brackets is limited, and the downward deflection is easy to be obvious, requiring the use of more columns. Summary of the invention

[0004] Based on this, it is necessary to provide a photovoltaic bracket connection device, a tracking bracket and a photovoltaic system to address the problems of the short bracket rotating beam of the traditional photovoltaic tracking bracket being prone to axial slippage, limited span and obvious downward deflection.

[0005] In a first aspect, the present application provides a photovoltaic bracket connection device, comprising:

[0006] A support, used for fixed installation on the top of the column;

[0007] A first connecting member is axially rotatably supported on the support, wherein one axial end of the first connecting member is used to connect to an end of a main beam;

[0008] A mounting member, fixedly mounted on the support and arranged opposite to the other axial end of the first connecting member, wherein the mounting position of the mounting member on the support is adjustable in the height direction of the support; and

[0009] The second connecting member is rotatably supported on the mounting member in any direction, one axial end of the second connecting member is rotatably connected to the other axial end of the first connecting member in any direction, and the other axial end of the second connecting member is used to connect to the end of another main beam.

[0010] In one embodiment, a first connecting hole is provided on the support, and a second connecting hole is provided on the mounting member, and the first connecting hole and the second connecting hole are used to pass fasteners to fasten the mounting member to the support; wherein the first connecting hole and / or the second connecting hole are strip holes extending along the height direction of the support.

[0011] In one embodiment, the mounting member includes a mounting portion and two connecting portions fixedly connected to opposite sides of the mounting portion, the two connecting portions are used to fixedly connect opposite sides of the support, and the second connecting member can be rotatably supported on the mounting portion in any direction.

[0012] In one embodiment, a concave cavity is provided at the axial end of the first connecting member, and the inner surface of the concave cavity is a spherical surface; a convex head is provided at the axial end of the second connecting member, and the outer surface of the convex head is a spherical surface; the convex head is embedded in the concave cavity, and the inner surface of the concave cavity is in spherical contact with the outer surface of the convex head, and the convex head can rotate around the central spherical surface of the concave cavity, so that the first connecting member and the second connecting member can be connected rotatably in any direction relative to each other.

[0013] In one embodiment, the photovoltaic bracket connection device also includes a spherical bearing, the spherical bearing includes an outer ring and an inner ring, the outer ring is fixedly mounted on the mounting member, the inner ring is embedded in the inner ring of the outer ring, and the inner ring is sleeved on the second connecting member; the outer circumferential surface of the inner ring is in spherical contact with the inner ring surface of the outer ring, and the inner ring can rotate around the central spherical surface of the inner ring surface of the outer ring, so as to support the second connecting member on the mounting member so that it can rotate in any direction relative to the mounting member.

[0014] In one of the embodiments, the photovoltaic support connection device also includes a main beam connection member, which is used to be detachably coaxially connected to the end of the main beam, and the first connection member and the second connection member are both connected to the main beam connection member.

[0015] In one embodiment, the main beam connecting member is used to be sleeved and connected to the outside of the end of the main beam; and / or, the main beam connecting member is provided with a third connecting hole, and the third connecting hole is a strip hole extending along the axial direction of the main beam connecting member, and the main beam connecting member is fixedly connected to the main beam through the third connecting hole.

[0016] In one embodiment, the photovoltaic bracket connection device also includes a column connector, which is used to be detachably fixedly connected to the top of the column, and a fourth connection hole is provided on the column connector, which is a strip hole extending in a direction perpendicular to the height of the support, and the support is fixedly connected to the column connector through the fourth connection hole.

[0017] In a second aspect, the present application provides a tracking bracket, comprising:

[0018] A plurality of support modules, each of which comprises a main beam and a driving device for driving the main beam to rotate, and the plurality of support modules are arranged in sequence along the length direction of the main beam;

[0019] A connecting column is provided between the ends of the main beams of any two adjacent support modules; and

[0020] As described in any one of the photovoltaic bracket connection devices in the first aspect, the photovoltaic bracket connection device is installed on the top of the connecting column and connects the ends of two adjacent main beams.

[0021] In a third aspect, the present application provides a photovoltaic system, comprising a photovoltaic component and a tracking bracket as described in the second aspect, wherein the photovoltaic component is mounted on a plurality of bracket modules of the tracking bracket.

[0022] The above-mentioned photovoltaic bracket connection device, by arranging a second connecting piece to be rotatably connected to the first connecting piece in any direction relative to each other, axially connects the ends of two adjacent main beams to avoid axial slippage of the main beams; the two main beams can rotate axially relative to each other to release torque, and the two adjacent main beams can rotate independently of each other without affecting each other. There is no requirement for the synchronization of the rotation of the main beams, which can reduce the controller development cost and directly avoid the risk of the main beam connection node or even the bracket being twisted when the multi-drive system rotates asynchronously; when the drive device of a main beam fails, there is no need to shut down the entire row of tracking brackets for maintenance, only the failed drive device needs to be shut down, and the rest of the tracking brackets are not affected, greatly reducing the power generation loss caused by system maintenance; universal adjustment can also be achieved between the two main beams, so that the axes of the two main beams are not in the same straight line, and the two main beams can be deflected relative to each other by a certain angle to adapt to the undulating terrain. By providing a second mounting member that can be supported on the mounting member so as to rotate in any direction relative to the mounting member and the mounting position of the mounting member on the support can be adjusted in the height direction, the mounting member can be used to support the angle deflection of the main beam, and both ends of the main beam can be stably and reliably supported on the column. The span at both ends of the main beam is not affected, thus avoiding obvious deflection of the main beam and improving the flatness of component installation; and connecting the two main beams through the photovoltaic bracket connection device can improve the overall stiffness of the bracket and increase the span. In addition, the ends of any two adjacent main beams are connected through the photovoltaic bracket connection device and supported on the same column, which reduces the use of columns, saves steel and reduces costs. The photovoltaic bracket connection device is a mechanical structure with simple production and manufacturing, convenient installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a schematic diagram of the three-dimensional structure of a photovoltaic bracket connection device in one embodiment of the present application.

[0024] Figure 2 It is a schematic diagram of the exploded structure of a photovoltaic bracket connection device in one embodiment of the present application.

[0025] Figure 3 This is a front view of a photovoltaic bracket connection device in one embodiment of the present application.

[0026] Figure 4 It is a cross-sectional view of a photovoltaic support connection device in one embodiment of the present application.

[0027] Figure 5 It is a cross-sectional view of a second connecting member deflected upward relative to the first connecting member in one embodiment of the present application.

[0028] Figure 6 It is a cross-sectional view of a second connecting member deflected downward relative to the first connecting member in one embodiment of the present application.

[0029] Figure 7 This is a front view of a photovoltaic system in one embodiment of the present application.

[0030] Figure 8 FIG. 1 is a top view of a photovoltaic system in an embodiment of the present application.

[0031] Fig. 9 Schematic diagram of the structure of a bracket module in one embodiment of the present application.

[0032] Fig.10 for Figure 8 Schematic diagram of the enlarged structure of part A in the middle.

[0033] Fig.11 for Fig. 9 Schematic diagram of the enlarged structure of part B in the middle.

[0034] Fig.12 for Fig. 9 Schematic diagram of the enlarged structure of part C in the middle.

[0035] Figure Number:

[0036] 10. Photovoltaic bracket connection device; 1. Support; 11. First connection hole; 12. Support boss; 121. Support cavity; 2. First connection piece; 21. Concave cavity; 3. Mounting piece; 31. Second connection hole; 32. Mounting part; 33. Connecting part; 34. Bearing boss; 341. Bearing cavity; 4. Second connection piece; 41. Boss; 5. Spherical bearing; 51. Outer ring; 52. Inner ring; 6. Support bearing; 7. Main beam connection piece; 71. Third connection hole; 8. Column connection piece; 81. Fourth connection hole; 9. Fastener;

[0037] 20. Support module; 201. Main beam; 202. Driving device;

[0038] 30. Column; 301. Connecting column;

[0039] 100. Tracking bracket; 200. Photovoltaic module. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. An element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and are not intended to be the only implementation method.

[0046] To facilitate understanding of the photovoltaic bracket connection device provided in the embodiment of the present application, the application scenario of the photovoltaic bracket connection device is first explained. The photovoltaic bracket connection device provided in the embodiment of the present application is used to connect the main beams of two short brackets using a common column, and splice multiple short brackets in the tracking bracket to form a long bracket, which can adapt to the undulating terrain. The multiple short brackets of the tracking bracket are used to support the photovoltaic components in the photovoltaic system. In the specific setting, the tracking bracket supports the photovoltaic components through the main beams of the multiple short brackets, and drives the multiple main beams to rotate through multiple driving devices.

[0047] The main beams of multiple short brackets in the current tracking bracket that can adapt to undulating terrain are disconnected from each other, which easily causes the main beam to slip axially. In addition, the span at both ends of the main beam is limited, and the downward deflection is obvious, requiring the use of more columns to support, which increases the cost. In addition, if adjacent main beams are axially connected, torque needs to be transmitted between the main beams, which requires high synchronization between the various drive devices. Once the drive is not synchronized, it is easy to cause the bracket to be twisted.

[0048] To this end, an embodiment of the present application provides a photovoltaic bracket connection device for connecting two main beams, which can adapt to undulating terrain while avoiding axial slippage and obvious deflection of the main beams. It can also play a role in releasing the torque of the main beams. The two main beams can rotate with each other without affecting each other, fully meeting the application needs of tracking brackets under undulating terrain.

[0049] See also Figures 1 to 4A photovoltaic bracket connection device 10 provided in an embodiment of the present application includes a support 1, a first connecting member 2, a mounting member 3 and a second connecting member 4, wherein the support 1 is used to be fixedly installed on the top of a column 30; the first connecting member 2 can be axially rotatably supported on the support 1, and one axial end of the first connecting member 2 is used to connect the end of a main beam 201; the mounting member 3 is fixedly installed on the support 1 and is arranged opposite to the other axial end of the first connecting member 2, and the installation position of the mounting member 3 on the support 1 is adjustable in the height direction of the support 1; the second connecting member 4 can be rotatably supported on the mounting member 3 in any direction, one axial end of the second connecting member 4 is rotatably connected to the other axial end of the first connecting member 2 in any direction, and the other axial end of the second connecting member 4 is used to connect the end of another main beam 201.

[0050] like Figures 1 to 4 As shown in , the X direction is the height direction of the support 1 , and the Y direction is the axial direction of the first connecting member 2 and the second connecting member 4 and the length direction of the main beam 201 .

[0051] In this embodiment, the main beam 201 can be the main beam 201 of the photovoltaic system tracking bracket, and the tracking bracket includes multiple main beams 201, and the multiple main beams 201 are arranged in sequence along the length direction of the main beam 201; the tracking bracket also includes multiple driving devices, and the multiple driving devices are respectively connected to the multiple main beams 201, and the multiple main beams 201 are driven to rotate by the multiple driving devices. The column 30 is used to support the ends of two adjacent main beams 201 at the same time. The photovoltaic bracket connecting device 10 is used as a connecting structure to axially connect the two adjacent main beams 201 and support them on the top of the column 30.

[0052] Specifically, the photovoltaic support connection device 10 is fixedly installed on the top of the column 30 through the support 1, and the support 1 plays a role of supporting and transmitting force, and finally transmits gravity and bending moment to the column 30 and the ground through the support 1.

[0053] The first connecting member 2 is axially rotatably supported on the support 1, which means that the first connecting member 2 is installed on the support 1 and can rotate around its own axis relative to the support 1; the first connecting member 2 has two opposite axial ends. One axial end of the first connecting member 2 is used to connect the end of one of the main beams 201. Since the first connecting member 2 can rotate relative to the support 1, and the support 1 is installed on the top of the column 30, the end of the main beam 201 is rotatably supported on the top of the column 30. Optionally, the rotation axis of the first connecting member 2 is perpendicular to the height direction of the support 1.

[0054] The mounting member 3 is arranged opposite to the other axial end of the first connecting member 2, which means that along the axial direction of the first connecting member 2, the mounting member 3 is located at the end of the first connecting member 2 away from the end connected to one of the main beams 201; that is, the mounting member 3 and the first connecting member 2 are installed on opposite sides of the support 1.

[0055] The second connecting member 4 is supported on the mounting member 3 so as to be rotatable in any direction relative to the mounting member 3, which means that the second connecting member 4 is mounted on the mounting member 3 and can rotate around its own axis relative to the mounting member 3, and the rotation axis of the second connecting member 4 can also rotate in any direction relative to the mounting member 3, that is, the second connecting member 4 can be deflected in any direction relative to the mounting member 3; the second connecting member 4 has two opposite axial ends.

[0056] One axial end of the second connecting member 4 is rotatably connected to the other axial end of the first connecting member 2 in any relative direction, which means that the second connecting member 4 and the first connecting member 2 can be axially rotatably connected, and the second connecting member 4 and the first connecting member 2 can also be deflected in any relative direction, and the second connecting member 4 and the first connecting member 2 constitute a universal connection structure.

[0057] The other axial end of the second connecting member 4 is used to connect the end of another main beam 201. Since the second connecting member 4 and the first connecting member 2 form a universal connection structure, the ends of the two main beams 201 are axially connected, and the two main beams 201 are not prone to axial slippage. At the same time, the two main beams 201 can rotate axially relative to each other to achieve torque release. The two main beams 201 rotate with each other without affecting each other, avoiding the risk of torque affecting each other when the two main beams 201 rotate asynchronously or even the risk of the bracket being twisted. Moreover, the two main beams 201 can be universally adjusted through the universal connection structure, so that the axes of the two main beams 201 are not in the same straight line and can be relatively deflected by a certain angle to adapt to the undulating terrain.

[0058] At the same time, since the second connecting member 4 is rotatably supported on the mounting member 3, and the mounting member 3 is fixedly mounted on the support 1, the end of another main beam 201 can also be rotatably supported on the top of the column 30. Two adjacent main beams 201 share one column 30, which reduces the use of columns 30, saves steel and reduces costs. In addition, both ends of the main beam 201 are rotatably supported on the column 30, and the span of the two ends of the main beam 201 is not affected, so the span of the bracket can be increased, the bracket can be prevented from being significantly deflected, and the flatness of the component installation can be improved.

[0059] The installation position of the mounting member 3 on the support 1 is adjustable in the height direction of the support 1, that is, the mounting member 3 can be moved up and down along the height direction of the support 1 to change its position. Since the second connecting member 4 is installed on the mounting member 3 and can deflect in any direction relative to the mounting member 3, and the axial end of the second connecting member 4 is connected to the axial end of the first connecting member 2 and cannot move, the mounting member 3 only retains the rotation of the second connecting member 4 along the height direction of the support 1 and limits the rotation in other directions, so that the up and down movement of the mounting member 3 can drive the second connecting member 4 to deflect up and down relative to the first connecting member 2. After deflecting to a certain angle to adapt to the undulating terrain, the mounting member 3 is fixed to the support 1, and the up and down deflection of the second connecting member 4 is supported by the mounting member 3, effectively avoiding the obvious downward deflection of the main beam 201.

[0060] like Figure 5 As shown, the second connecting member 4 deflects upward relative to the first connecting member 2, driving the main beam 201 to deflect upward. Figure 6 As shown, the second connecting member 4 deflects downward relative to the first connecting member 2, driving the main beam 201 to deflect downward. The second connecting member 4 rotates relative to the first connecting member 2, driving the main beam 201 connected to the second connecting member 4 to rotate relative to the main beam 201 connected to the first connecting member 2 in the height direction of the support 1, so as to adjust the relative deflection angle of the two adjacent main beams 201; after the deflection angle is adjusted, the mounting member 3 is fastened and connected to the support 1 at the first connecting hole 11 and the second connecting hole 31 by the fastener 9, at this time, the second connecting member 4 and the first connecting member 2 rotate relative to each other at a fixed deflection angle, and the two adjacent main beams 201 rotate relative to each other at a fixed deflection angle.

[0061] The photovoltaic bracket connection device 10 of this embodiment is suitable for tracking brackets of multi-drive photovoltaic systems under undulating terrain. By setting the second connecting member 4 and the first connecting member 2 to be rotatably connected in any direction relative to each other, the ends of two adjacent main beams 201 are axially connected to avoid axial slippage of the main beams 201; the two main beams 201 can rotate axially relative to each other to release torque, and the two adjacent main beams 201 can rotate independently of each other without affecting each other. There is no requirement for the synchronization of the rotation of the main beams 201, which can reduce the controller development cost and directly avoid the risk of the main beam 201 connection node or even the bracket being twisted when the multi-drive system rotates asynchronously; when the drive device of a main beam 201 fails, there is no need to shut down the entire row of tracking brackets for maintenance, only the failed drive device needs to be shut down, and the rest of the tracking bracket is not affected, which greatly reduces the power generation loss caused by system maintenance; universal adjustment can also be achieved between the two main beams 201, so that the axes of the two main beams 201 are not on the same straight line, and the two main beams 201 can be relatively deflected by a certain angle to adapt to the undulating terrain. By setting the second connecting member 4 to be rotatably supported on the mounting member 3 in any direction and the mounting position of the mounting member 3 on the support 1 to be adjustable in the height direction, the mounting member 3 can support the angle deflection of the main beam 201, and both ends of the main beam 201 can be stably and reliably supported on the column 30, and the span at both ends of the main beam 201 is not affected, thereby avoiding obvious deflection of the main beam 201 and improving the flatness of the component installation; and connecting the two main beams 201 through the photovoltaic support connection device 10 can improve the overall rigidity of the support and increase the span. In addition, the ends of any two adjacent main beams 201 are connected through the photovoltaic support connection device 10 and supported on the same column 30, reducing the use of the column 30, saving steel and reducing costs. The photovoltaic support connection device 10 is a mechanical structure, which is simple to manufacture, easy to install and easy to maintain.

[0062] The photovoltaic bracket connection device 10 of this embodiment can connect the main beams 201 of multiple short brackets and splice them into a long bracket, which effectively solves the problems of easy axial slippage, limited span and obvious deflection of the short bracket rotating beam of the traditional photovoltaic tracking bracket.

[0063] In some embodiments, Figure 2 As shown, a first connecting hole 11 is provided on the support 1, and a second connecting hole 31 is provided on the mounting member 3. The first connecting hole 11 and the second connecting hole 31 are both used to penetrate a fastener 9 to fasten the mounting member 3 to the support 1; wherein the first connecting hole 11 and / or the second connecting hole 31 are strip holes extending along the height direction of the support 1.

[0064] In this embodiment, the first connection hole 11 and the second connection hole 31 have simple structures, are firmly and reliably connected by the fastener 9, and have low cost. The first connection hole 11 on the support 1 may be a strip hole, the second connection hole 31 on the mounting member 3 may be a strip hole, or both the first connection hole 11 and the second connection hole 31 may be strip holes. By setting the first connection hole 11 and / or the second connection hole 31 as a strip hole, the fastener 9 and the support 1 and / or the mounting member 3 can move relative to each other along the strip hole to change the fastening position of the fastener 9, and the mounting member 3 moves relative to the support 1 along the strip hole to change the connection position with the support 1, thereby adjusting the installation position of the mounting member 3 on the support 1; and the installation position of the mounting member 3 can be continuously adjustable along the extension direction of the strip hole, which is convenient and flexible to use and meets actual use requirements.

[0065] In some embodiments, Figure 1 and Figure 2 As shown, the mounting member 3 includes a mounting portion 32 and two connecting portions 33 fixedly connected to opposite sides of the mounting portion 32. The two connecting portions 33 are used to fixedly connect opposite sides of the support 1. The second connecting member 4 can be supported on the mounting portion 32 rotatably in any direction.

[0066] In this embodiment, the two connecting parts 33 face the same side of the mounting part 32; the opposite sides of the support 1 are parallel to the height direction of the support 1. By providing two connecting parts 33 to fix the opposite sides of the support 1, the positions of the mounting member 3 and the opposite sides of the support 1 can be limited, and the mounting member 3 is limited to move along the side of the support 1 parallel to the height direction, thereby playing a limiting and guiding role in the movement of the mounting member 3 relative to the support 1, and the mounting member 3 can be adjusted to the mounting position on the support 1 more accurately and conveniently.

[0067] Optionally, the mounting portion 32 and the connecting portion 33 are both plate-shaped structures.

[0068] In some embodiments, Figure 2 As shown, each connection portion 33 is provided with a plurality of second connection holes 31, and the plurality of second connection holes 31 are arranged at intervals along the extension direction of the second connection holes 31. For example, each connection portion 33 is provided with two second connection holes 31 at intervals along the height direction. By providing a plurality of second connection holes 31, the connection portion 33 is more firmly connected to the support 1, and is not easy to tilt or shake. Moreover, the movement of the mounting member 3 relative to the support 1 is more stable, and is not easy to deflect, and the installation position adjustment of the mounting member 3 is more accurate.

[0069] In some embodiments, Figure 2 and Figures 4 to 6As shown, the photovoltaic bracket connection device 10 also includes a spherical bearing 5, the spherical bearing 5 includes an outer ring 51 and an inner ring 52, the outer ring 51 is fixedly mounted on the mounting member 3, the inner ring 52 is embedded in the inner ring of the outer ring 51, and the inner ring 52 is sleeved on the second connecting member 4; the outer circumferential surface of the inner ring 52 is in spherical contact with the inner ring surface of the outer ring 51, and the inner ring 52 can rotate around the central spherical surface of the inner ring surface of the outer ring 51, so as to support the second connecting member 4 on the mounting member 3 so that it can rotate in any direction relative to the mounting member 3.

[0070] In this embodiment, the contact surface between the inner ring 52 and the outer ring 51 of the spherical bearing 5 is a spherical surface, and the inner ring 52 can rotate freely in the inner ring surface of the outer ring 51, so that the second connecting member 4 can rotate freely in any direction relative to the mounting member 3, and the rotation is more flexible.

[0071] Specifically, Figure 2 and Figure 4 As shown, the mounting member 3 also includes a bearing boss 34, which is arranged on the mounting portion 32 and faces the same side of the mounting portion 32 as the connecting portion 33; a bearing cavity 341 is opened in the bearing boss 34, and the bearing cavity 341 is used to install the outer ring 51 of the spherical bearing 5.

[0072] In some embodiments, Figure 2 and Figure 4 As shown, the axial end of the first connecting member 2 is provided with a cavity 21, and the inner surface of the cavity 21 is a spherical surface; the axial end of the second connecting member 4 is provided with a convex head 41, and the outer surface of the convex head 41 is a spherical surface; the convex head 41 is embedded in the cavity 21, and the inner surface of the cavity 21 is in spherical contact with the outer surface of the convex head 41, and the convex head 41 can rotate around the central spherical surface of the cavity 21, so that the first connecting member 2 and the second connecting member 4 can be connected rotatably in any direction relative to each other.

[0073] In this embodiment, the outer surface of the convex head 41 and the inner surface of the concave cavity 21 are in spherical sliding contact, the convex head 41 and the concave cavity 21 constitute a spherical kinematic pair, and universal adjustment is achieved at the spherical kinematic pair. The concave cavity 21 of the first connecting member 2 and the convex head 41 of the second connecting member 4 constitute a spherical hinge joint. The convex head 41 of the second connecting member 4 can rotate freely in the concave cavity 21 of the first connecting member 2, and the second connecting member 4 can rotate 360 ​​degrees around the concave cavity 21 of the first connecting member 2. The two main beams 201 simultaneously realize axial connection, axial relative rotation and relative deflection at a certain angle at the spherical hinge joint, so as to adapt to undulating terrain, avoid axial slippage, and realize torque release, which is more applicable.

[0074] In some embodiments, Figure 2 and Figure 4As shown, the photovoltaic support connection device 10 also includes a support bearing 6, and the first connection member 2 is rotatably supported on the support 1 through the support bearing 6. Specifically, the support 1 is also provided with a support boss 12, and a support cavity 121 is opened in the support boss 12. The support cavity 121 is used to install the support bearing 6. One end of the first connection member 2 having a concave cavity 21 is embedded in the support bearing 6, and the first connection member 2 can rotate freely in the support bearing 6. Optionally, the support bearing 6 is a cylindrical bearing or a tapered bearing. Optionally, the support bearing 6 is a rolling bearing or a sliding bearing.

[0075] In some embodiments, Figures 1 to 4 As shown, the photovoltaic support connection device 10 also includes a main beam connection member 7, which is used to be detachably coaxially connected to the end of the main beam 201, and the first connection member 2 and the second connection member 4 are both connected to the main beam connection member 7.

[0076] In this embodiment, the first connector 2 is fixedly connected to the main beam connector 7, and the main beam connector 7 is coaxially detachably connected to the end of the main beam 201, so that the first connector 2 is detachably fixedly connected to the end of the main beam 201. Similarly, the second connector 4 is fixedly connected to the main beam connector 7, and the main beam connector 7 is coaxially detachably connected to the end of the main beam 201, so that the second connector 4 is detachably fixedly connected to the end of the main beam 201. By providing the main beam connector 7 to detachably connect the first connector 2 and the second connector 4 to the main beam 201, the disassembly and maintenance of the photovoltaic bracket connection device 10 and the tracking bracket are facilitated, and the structure is simple.

[0077] In some embodiments, a flange is welded to the end of the main beam 201, and the main beam connecting member 7 can be another flange, so that the first connecting member 2 and the second connecting member 4 can be directly connected to the main beam 201 through the flange.

[0078] In other embodiments, Figures 1 to 4 As shown, the main beam connecting member 7 is used to be sleeved and connected to the outside of the end of the main beam 201.

[0079] In this embodiment, the main beam connector 7 is in the form of an outer sleeve, which can be sleeved on the outside of the end of the main beam 201; by setting the main beam connector 7 to be sleeved on the outside of the main beam 201, the outer diameter specifications of the main beam 201 can be set to be unified, which is convenient for connector design and meets standardized design requirements. By changing the wall thickness of the main beam 201 to adapt to different wind pressure requirements, the main beam connector 7 can be matched with main beams 201 of different specifications for installation, reducing the types of processing of the main beam connector 7, reducing the types of parts, facilitating on-site installation, and reducing costs.

[0080] Specifically, the cross-sectional shape and size of the main beam connector 7 are adapted to the cross-sectional shape and size of the main beam 201. For example, the cross-sectional shape of the main beam connector 7 can be square, circular, and the like.

[0081] In some embodiments, Figures 1 to 4 As shown, the main beam connector 7 is provided with a third connecting hole 71 , which is a strip-shaped hole extending along the axial direction of the main beam connector 7 . The main beam connector 7 is fixedly connected to the main beam 201 via the third connecting hole 71 .

[0082] In this embodiment, the axial direction of the main beam connector 7 is parallel to the length direction of the main beam 201. By setting the third connection hole 71 as a strip hole, the fastener 9 is passed through the third connection hole 71, and the main beam connector 7 and the main beam 201 can be fastened and connected by the fastener 9. For example, the fastener 9 can be a bolt or a rivet, etc., with a simple structure, and the strip hole is convenient for compensating the piling deviation in the length direction of the main beam 201, meeting the piling deviation of the actual project, which is conducive to reducing the piling accuracy requirements and reducing the construction cost.

[0083] Optionally, a plurality of third connection holes 71 are provided on the main beam connector 7 , and the plurality of third connection holes 71 are distributed on a plurality of side surfaces of the main beam connector 7 parallel to the axial direction, and the plurality of third connection holes 71 may also be arranged at intervals along the axial direction of the main beam connector 7 .

[0084] In some other embodiments not shown, the third connecting hole 71 may also be a circular hole, and the main beam connecting member 7 is fixedly connected to the main beam 201 via the third connecting hole 71 .

[0085] In some embodiments, Figure 1 and Figure 2 As shown, the photovoltaic bracket connection device 10 also includes a column connector 8, which is used to be detachably fixedly connected to the top of the column 30. The column connector 8 is provided with a fourth connection hole 81, and the fourth connection hole 81 is a strip hole extending in a direction perpendicular to the height of the support 1. The support 1 is fixedly connected to the column connector 8 through the fourth connection hole 81.

[0086] In this embodiment, the support 1 and the column 30 are detachably connected by setting the column connector 8, which facilitates the disassembly, assembly and maintenance of the photovoltaic bracket connection device 10 and the tracking bracket, and the structure is simple; by setting the fourth connection hole 81 as a strip hole, the support 1 and the column connector 8 can be fastened and connected by the fastener 9, the structure is simple, and it is easy to compensate for the piling deviation in the direction perpendicular to the height of the support 1, so as to meet the piling deviation of the actual project, which is conducive to reducing the piling accuracy requirements and reducing the construction cost.

[0087] Optionally, the fourth connection hole 81 is a strip-shaped hole extending in a direction perpendicular to the length of the main beam 201 .

[0088] See also Figures 7 to 12A tracking bracket 100 provided in one embodiment of the present application includes a plurality of bracket modules 20, a connecting column 301 and a photovoltaic bracket connecting device 10 provided by any of the above embodiments, each bracket module 20 includes a main beam 201 and a driving device 202 for driving the main beam 201 to rotate, and a plurality of bracket modules 20 are arranged in sequence along the length direction of the main beam 201; a connecting column 301 is provided between the ends of the main beams 201 of any two adjacent bracket modules 20; the photovoltaic bracket connecting device 10 is installed on the top of the connecting column 301 and connects the ends of two adjacent main beams 201.

[0089] In this embodiment, the tracking bracket 100 is suitable for a photovoltaic system, and the tracking bracket 100 includes a plurality of bracket modules 20, each of which is driven by an independent driving device 202; two adjacent bracket modules 20 are connected by a photovoltaic bracket connecting device 10, and a plurality of bracket modules 20 are spliced ​​into a long bracket by using the photovoltaic bracket connecting device 10. The tracking bracket 100 realizes a modular design, and a plurality of bracket modules 20 can be spliced ​​arbitrarily, and the design is more flexible.

[0090] In some embodiments, the main beam 201 is a tubular structure, which may be a square tube, a round tube or a tubular structure of other shapes, which is not specifically limited in the embodiments of the present application.

[0091] See also Figures 7 to 9 A photovoltaic system provided in one embodiment of the present application includes a photovoltaic component 200 and a tracking bracket 100 provided by the above embodiment, and the photovoltaic component 200 is installed on a plurality of bracket modules 20 of the tracking bracket 100 .

[0092] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0093] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A photovoltaic support connection device, characterized in that: include: A support, used for fixed installation on the top of the column; A first connecting member is axially rotatably supported on the support, wherein one axial end of the first connecting member is used to connect to an end of a main beam; A mounting member, fixedly mounted on the support and arranged opposite to the other axial end of the first connecting member, wherein the mounting position of the mounting member on the support is adjustable in the height direction of the support; as well as A second connecting member is supported on the mounting member so as to be rotatable in any direction, one axial end of the second connecting member is rotatably connected to the other axial end of the first connecting member so as to be rotatable in any direction, and the other axial end of the second connecting member is used to connect to the end of another main beam; The support is provided with a first connection hole, and the mounting piece is provided with a second connection hole, the first connection hole and the second connection hole are used to penetrate a fastener to fasten the mounting piece to the support, and the first connection hole and / or the second connection hole are strip-shaped holes extending along the height direction of the support; The first connecting member is provided with a concave cavity at the axial end, and the inner surface of the concave cavity is a spherical surface; the second connecting member is provided with a convex head at the axial end, and the outer surface of the convex head is a spherical surface; the convex head is embedded in the concave cavity, and the inner surface of the concave cavity is in spherical contact with the outer surface of the convex head, and the convex head can rotate around the central spherical surface of the concave cavity, so that the first connecting member and the second connecting member can be connected to rotate in any direction relative to each other; The photovoltaic bracket connection device also includes a spherical bearing, which includes an outer ring and an inner ring. The outer ring is fixedly mounted on the mounting member, and the inner ring is embedded in the inner ring of the outer ring. The inner ring is sleeved on the second connecting member. The outer circumferential surface of the inner ring is in spherical contact with the inner ring surface of the outer ring, and the inner ring can rotate around the central spherical surface of the inner ring surface of the outer ring, so as to support the second connecting member on the mounting member so that it can rotate in any direction relative to the mounting member.

2. The photovoltaic bracket connection device according to claim 1, characterized in that: The photovoltaic bracket connection device also includes a support bearing; a support boss is also provided on the support, a support cavity is opened in the support boss, and the support cavity is used to install the support bearing, and one end of the first connecting member with the concave cavity is embedded in the support bearing.

3. The photovoltaic bracket connection device according to claim 1, characterized in that: The mounting member includes a mounting portion and two connecting portions fixedly connected to opposite sides of the mounting portion, the two connecting portions are used to fixedly connect opposite sides of the support, and the second connecting member can be rotatably supported on the mounting portion in any direction.

4. The photovoltaic support connection device according to claim 3, characterized in that: The mounting member further comprises a bearing boss, which is arranged on the mounting portion and faces the same side of the mounting portion as the connecting portion; a bearing cavity is defined in the bearing boss, and the bearing cavity is used to mount the outer ring of the spherical bearing.

5. The photovoltaic support connection device according to claim 3, characterized in that: A plurality of the second connection holes are provided on each of the connection parts, and the plurality of the second connection holes are arranged at intervals along an extending direction of the second connection holes.

6. The photovoltaic support connection device according to any one of claims 1 to 5, characterized in that: The photovoltaic support connection device also includes a main beam connection member, which is used to be detachably coaxially connected to the end of the main beam, and the first connection member and the second connection member are both connected to the main beam connection member.

7. The photovoltaic support connection device according to claim 6, characterized in that: The main beam connecting member is used to be sleeved and connected to the outside of the end of the main beam; and / or, the main beam connecting member is provided with a third connecting hole, and the third connecting hole is a strip hole extending along the axial direction of the main beam connecting member, and the main beam connecting member is fixedly connected to the main beam through the third connecting hole.

8. The photovoltaic support connection device according to any one of claims 1 to 5, characterized in that: The photovoltaic bracket connection device also includes a column connector, which is used to be detachably fixedly connected to the top of the column. The column connector is provided with a fourth connection hole, which is a strip hole extending in a direction perpendicular to the height of the support. The support is fixedly connected to the column connector through the fourth connection hole.

9. A tracking bracket, characterized in that: include: A plurality of support modules, each of which comprises a main beam and a driving device for driving the main beam to rotate, and the plurality of support modules are arranged in sequence along the length direction of the main beam; A connecting column is provided between the ends of the main beams of any two adjacent support modules; and The photovoltaic bracket connection device according to any one of claims 1 to 8, wherein the photovoltaic bracket connection device is installed on the top of the connecting column and connects the ends of two adjacent main beams.

10. A photovoltaic system, characterized in that: It comprises a photovoltaic component and the tracking bracket according to claim 9, wherein the photovoltaic component is installed on a plurality of bracket modules of the tracking bracket.

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