Photovoltaic support assembly and photovoltaic system

Abstract

According to the photovoltaic support assembly and the photovoltaic system, the inner wall face, defined by a bearing seat, of a first containing space is in spherical and curved fit with the outer surface of a bearing, and in the axial direction of a main shaft, an included angle is formed between the tangent line of the section end point position of the matched curved surface of the bearing seat and the bearing and the tangent line of the section midpoint position; the included angles formed by the tangent lines of the section end point positions and the tangent lines of the section midpoint positions of the matched curved surfaces of the bearing and the bearing seat range from 5 degrees to 20 degrees. Therefore, on one hand, the bearing seat and the bearing are in spherical and curved fit, axial limiting between the bearing seat and the bearing can be achieved, axial limiting structures such as a baffle can be omitted, the cost is reduced, the disassembly and assembly difficulty is reduced, and the assembling cost is reduced; the axial limiting reliability and stability can be ensured, the disassembly and assembly difficulty can be considered, the disassembly and assembly difficulty between the bearing seat and the bearing is further reduced, and the disassembly and assembly cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a photovoltaic support assembly and a photovoltaic system. Background Technology

[0002] In related technologies, photovoltaic support components are used to support photovoltaic panels and allow the photovoltaic panels to be rotated relative to a fixed base, so that the photovoltaic panels can receive more sunlight, improve power generation efficiency, enhance the photovoltaic system's resistance to harsh weather conditions, and improve the safety and reliability of the photovoltaic system.

[0003] However, existing photovoltaic support components that allow photovoltaic panels to be flipped relative to their fixed foundations are difficult to install and pose a risk of slippage. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a photovoltaic support assembly that has higher reliability and stability, and is easier to install.

[0005] This application further proposes a photovoltaic system employing the aforementioned photovoltaic support components.

[0006] In a first aspect, this application proposes a photovoltaic support assembly, comprising: a bearing housing, a bearing, and a main shaft, wherein the bearing housing defines a first accommodating space and is connected to a fixed foundation; the bearing is rotatably disposed in the first accommodating space and defines a second accommodating space for accommodating the main shaft; wherein

[0007] The bearing housing defines a spherical-curved fit between the inner wall of the first accommodating space and the outer surface of the bearing. In the axial direction of the main shaft, the angle formed by the tangent at the endpoint of the cross-section of the mating surface of the bearing housing and the bearing and the tangent at the midpoint of the cross-section, and the angle formed by the tangent at the endpoint of the cross-section of the mating surface of the bearing housing and the tangent at the midpoint of the cross-section, are all within the range of 5°-20°.

[0008] According to the photovoltaic bracket assembly of the present application, on the one hand, by setting a bearing seat and a bearing, and making the bearing seat and the bearing constructed as a ball-bend fit, the axial limiting between the bearing seat and the bearing can be realized, and the axial limiting structure such as baffle can be eliminated, thereby reducing costs, reducing disassembly and assembly difficulty, and reducing reassembly costs. On the other hand, limiting the above-mentioned included angle range can not only ensure the reliability and stability of axial limiting, but also take into account the disassembly and assembly difficulty, further reducing the disassembly and assembly difficulty between the bearing seat and the bearing, thereby reducing disassembly and assembly costs.

[0009] According to some embodiments of this application, the axial dimension of the bearing is greater than or equal to the axial dimension of the bearing housing.

[0010] According to some embodiments of this application, the inner wall surface of the bearing housing is constructed as a concave arc surface, and the outer surface of the bearing is constructed as a convex arc surface, or the inner wall surface of the bearing housing is constructed as a concave arc surface, and the outer surface of the bearing is constructed as a convex arc surface.

[0011] According to some embodiments of this application, the bearing housing includes: a first seat body and a second seat body that are assembled to form a first accommodating space, wherein the first seat body and / or the second seat body are connected to a fixed foundation;

[0012] The bearing includes a first bearing and a second bearing, the first bearing and the second bearing being assembled to form a second accommodating space, and the main shaft passing through the second accommodating space.

[0013] According to some embodiments of this application, the open end of the first seat is provided with a first connecting portion, and the open end of the second seat is provided with a second connecting portion, wherein the first connecting portion is connected to the second connecting portion.

[0014] According to some embodiments of this application, the inner wall surface of the first bearing defines a first profile segment, the inner wall surface of the second bearing defines a second profile segment, and the axial projection profile of the first profile segment and / or the second profile segment is at least partially consistent with the axial projection profile of the spindle.

[0015] According to some embodiments of this application, the axial projection profile of the spindle is constructed to be non-circular, and the first profile segment and / or the second profile segment are in contact with at least three sides of the spindle.

[0016] According to some embodiments of this application, the photovoltaic support assembly further includes: purlins, which are fixed to the main shaft and connected to the photovoltaic panel.

[0017] According to some embodiments of this application, the purlin includes: a body and a connector, the body being connected to the photovoltaic panel, the connector being sleeved on the main shaft and connected to the body, and at least a portion of the axial projection profile of the connector in the axial direction being consistent with at least a portion of the axial projection profile of the main shaft.

[0018] Secondly, this application provides a photovoltaic system, including: a photovoltaic support assembly and a photovoltaic panel as described in the above embodiments, wherein the photovoltaic panel is rotatably mounted on the fixed foundation via the photovoltaic support assembly.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of a photovoltaic system according to an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the axial projection outline of the bearing housing, bearing, and spindle according to an embodiment of this application;

[0023] Figure 3 This is an exploded view of the bearing housing and bearing according to an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the fit between the bearing housing and the bearing according to an embodiment of this application;

[0025] Figure 5 This is a cross-sectional schematic diagram of the bearing housing and the bearing according to an embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the axial projection outline of the purlin and the main shaft according to an embodiment of this application;

[0027] Figure 7 This is a schematic diagram of a purlin according to an embodiment of this application.

[0028] Figure label:

[0029] Photovoltaic system 1000,

[0030] Photovoltaic support frame 100, photovoltaic panel 200, fixing foundation 300.

[0031] Bearing housing 10, first seat body 11, first connecting part 111, second seat body 12, second connecting part 121.

[0032] Bearing 20, first bearing 21, first profile segment 211, second bearing 22, second profile segment 221.

[0033] Spindle 30,

[0034] Purlin 40, Body 41, Connector 42,

[0035] First accommodating space a, second accommodating space b, first included angle c, second included angle d. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0038] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0041] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0044] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0045] In this application, "multiple" means two or more (including two).

[0046] In related technologies, photovoltaic systems can use single-axis tracking photovoltaic support components to support photovoltaic panels, or they can use suspension flexible photovoltaic support components to support photovoltaic panels.

[0047] For single-axis tracking photovoltaic support modules, the photovoltaic panels are rotatably fixed to fixed foundations (such as columns, support frames, etc.) arranged in an array via the photovoltaic support modules. The fixed foundations are fixed to the ground, and the bearing seats are fixed to the fixed foundations. Bearings are further installed inside the bearing seats, and the main shaft passes through the bearings so that the main shaft can rotate relative to the fixed foundations. Purlins are further installed on the main shafts. The purlins are driven by the main shafts and are used to fix the photovoltaic panels so that the photovoltaic panels can be rotated relative to the fixed foundations.

[0048] However, since the main shaft spans between multiple fixed foundations, and the bearings and bearing housings are all fitted onto the main shaft, the long main shaft and the bearing housings and bearings are difficult to disassemble and assemble, but the disassembly and assembly are convenient and costly. The purlins, as the structure for fixing the photovoltaic panels, need to withstand large bending and torsional stresses, so a large number of them are installed, which will further increase the difficulty of disassembly and assembly.

[0049] Furthermore, in the existing technology, the axial movement between the bearing housing and the bearing is reduced by ball-and-bearing joint, but there are also problems such as high installation difficulty or poor axial limiting effect, which makes it difficult to meet the usage requirements of photovoltaic bracket modules.

[0050] Based on this, this application proposes a photovoltaic support assembly that is easier to assemble and disassemble, has higher axial fit stability between the bearing housing and the bearing, and thus has higher reliability and safety.

[0051] The photovoltaic bracket assembly 100 and the photovoltaic system 1000 according to embodiments of the present invention are described below with reference to the accompanying drawings.

[0052] like Figure 1 As shown, the photovoltaic system 1000 includes: a fixed foundation 300, a photovoltaic panel 200, and a photovoltaic support assembly 100. The fixed foundation 300 can be fixed on the ground foundation such as a building, a mountain, or a beach. The fixed foundation 300 can be constructed as a column, a support frame, or other structure. Multiple fixed foundations 300 can be arranged in an array, and each row of fixed foundations 300 is provided with a main shaft 30 extending along the interval direction of the fixed foundations 300. Each fixed foundation 300 can be provided with a bearing seat 10 and a bearing 20. The main shaft 30 passes through the bearing 20 so that the main shaft 30 can be rotated relative to the fixed foundation 300. The purlins 40 are fixed on the main shaft 30 and used to fix the photovoltaic panel 200. Each photovoltaic panel 200 can be provided with multiple purlins 40.

[0053] like Figure 2 As shown, this application proposes a photovoltaic support assembly 100, including: a bearing housing 10, a bearing 20 and a main shaft 30. The bearing housing 10 defines a first accommodating space a and is connected to a fixed base 300. The bearing 20 is rotatably disposed in the first accommodating space a and defines a second accommodating space b for accommodating the main shaft 30.

[0054] Specifically, the inner wall of the bearing housing 10 defines a first accommodating space a, and the bearing 20 can be disposed in the first accommodating space a. The inner wall of the bearing 20 defines a second accommodating space b, which is connected to the main shaft 30. The main shaft 30 is located in the second accommodating space b and can be connected to the bearing 20 through an anti-rotation limiting structure so that the bearing 20 can rotate synchronously with the main shaft 30 relative to the bearing housing 10.

[0055] like Figure 5As shown, the bearing housing 10 defines a ball-and-roll fit between the inner wall of the first accommodating space a and the outer surface of the bearing 20. On the one hand, this allows for a larger contact area between the inner wall and the outer surface of the bearing 20, thereby improving the stability and reliability of the fit between the bearing housing 10 and the bearing 20. On the other hand, when the main shaft 30 moves axially, it may push the bearing 20 to move axially. The outer surface of the bearing 20 can be pushed and limited by the ball-and-roll fit bearing housing 10, thereby improving the reliability and stability of the photovoltaic bracket assembly 100. Furthermore, there is no need to set up a baffle structure for axial limitation, which can reduce the number of parts and lower the cost of the photovoltaic bracket assembly 100. With fewer parts, the disassembly and assembly are easier and more convenient.

[0056] It is understandable that when the ball-bearing housing 10 and bearing 20 have a ball-bearing angle that is too small, the limiting effect of the fit between bearing housing 10 and bearing 20 is poor, making it difficult to achieve reliable and stable axial movement limiting. On the other hand, when the ball-bearing angle between bearing housing 10 and bearing 20 is too large, it will increase the difficulty of disassembling and assembling bearing housing 10 and bearing 20, making it difficult to balance the difficulty of disassembly and assembly.

[0057] Based on this, this application further makes the angle between the tangent at the end point of the cross section of the mating surface of the bearing housing 10 and the bearing 20 and the tangent at the midpoint of the cross section, and the angle between the tangent at the end point of the cross section of the mating surface of the bearing 20 and the bearing housing 10 and the tangent at the midpoint of the cross section, in the axial direction of the main shaft 30, both range from 5° to 20°.

[0058] Specifically, see Figure 3 As shown, the inner wall surface of the bearing housing 10 and the outer surface of the bearing 20 are both constructed as mating surfaces, with the two mating surfaces fitting together in a concave-convex manner. Figure 5 As shown, the inner wall of the bearing housing 10 and the outer surface of the bearing 20 define two arcs along the axial section of the main shaft 30. That is, the cross-sectional profile of the ball-bend fit area is two arcs with concave and convex fit. The angle between the tangent at the end point (start or end point) of the cross-section of the corresponding arc and the tangent at the midpoint of the cross-section of the arc is in the range of 5°-20°.

[0059] For example, the angle between the tangent at the endpoint of the cross section of the inner wall surface of the bearing housing 10 and the tangent at the midpoint of the cross section is defined as the first included angle c, and the angle between the tangent at the endpoint of the cross section of the outer surface of the bearing 20 and the tangent at the midpoint of the cross section is defined as the second included angle d. The angle of the first included angle c can be 5°, 10°, 15°, 20°, etc., and the angle of the second included angle d can be 5°, 10°, 15°, 20°, etc.

[0060] In this way, on the one hand, the angles of the first included angle c and the second included angle d can be kept from being less than 5°, so as to make the axial positioning stability and reliability between the bearing housing 10 and the bearing 20 higher. On the other hand, the angles of the first included angle c and the second included angle d can be kept from being greater than 20°, so as to take into account the difficulty of disassembly and assembly between the bearing housing 10 and the bearing 20, and effectively reduce the difficulty of disassembly and assembly between the two.

[0061] According to the photovoltaic bracket assembly 100 of the present application embodiment, on the one hand, by setting bearing seat 10 and bearing 20 and constructing the bearing seat 10 and bearing 20 as ball-bend fit, axial limiting between bearing seat 10 and bearing 20 can be achieved, and axial limiting structures such as baffles can be omitted, thereby reducing costs, reducing disassembly and assembly difficulty, and reducing reassembly costs. On the other hand, limiting the above-mentioned included angle range can not only ensure the reliability and stability of axial limiting, but also take into account the disassembly and assembly difficulty, further reducing the disassembly and assembly difficulty between bearing seat 10 and bearing 20, thereby reducing disassembly and assembly costs.

[0062] like Figure 3 As shown, according to some embodiments of this application, the axial dimension of the bearing 20 is greater than or equal to the axial dimension of the bearing housing 10.

[0063] Among them, combined Figure 5 As shown, in some embodiments, the axial dimension of the bearing 20 is greater than the axial dimension of the bearing housing 10, while in other embodiments, the axial dimension of the bearing 20 is equal to the axial dimension of the bearing housing 10.

[0064] Therefore, the ball-bend fit area between bearing 20 and bearing housing 10 can be made more stable, and the dimensions of bearing 20 and bearing housing 10 can be more reasonable. Under the premise of ensuring the ball-bend fit to achieve axial limit, the axial dimension of bearing 20 can be larger than the axial dimension of bearing housing 10. By reducing the axial dimension of bearing housing 10, the weight of photovoltaic bracket module 100 can be further reduced, thereby reducing the difficulty of disassembly and assembly, improving safety, and reducing material costs.

[0065] According to some embodiments of this application, the inner wall surface of the bearing housing 10 is constructed as a concave arc surface, and the outer surface of the bearing 20 is constructed as a convex arc surface, or the inner wall surface of the bearing housing 10 is constructed as a concave arc surface, and the outer surface of the bearing 20 is constructed as a convex arc surface.

[0066] In other words, in some embodiments, the inner wall surface of the bearing housing 10 is a concave arc surface and the outer surface of the bearing 20 is a convex arc surface. In other embodiments, the inner wall surface of the bearing housing 10 is a concave arc surface and the outer surface of the bearing 20 is a convex arc surface. Both can achieve a ball-and-roll fit between the bearing housing 10 and the bearing 20 to achieve an axial limiting effect. This application will not elaborate further.

[0067] Combination Figure 3 , Figure 4 As shown, according to some embodiments of this application, the bearing housing 10 includes: a first housing 11 and a second housing 12 assembled to form a first accommodating space a, wherein the first housing 11 and / or the second housing 12 are connected to the fixed base 300.

[0068] The bearing 20 includes a first bearing 21 and a second bearing 22, which together form a second accommodating space b, and the main shaft 30 passes through the second accommodating space b.

[0069] Specifically, at least one of the first base 11 and the second base 12 is connected to the fixed base 300, and the first base 11 and the second base 12 are constructed as separate structures so that the bearing 20 can be assembled on the first base 11 or the bearing 20 on the second base 12 before the first base 11 and the second base 12 are assembled as a whole. The first bearing 21 and the second bearing 22 are constructed as separate structures so that the spindle 30 can be assembled on the first bearing 21 or the spindle 30 on the second bearing 22 before the first bearing 21 and the second bearing 22 are assembled as a whole.

[0070] In this way, by setting up separate bearing housings 10 and bearings 20, the main shaft 30 can be assembled on the first bearing 21 or the second bearing 22 first, then the first bearing 21 can be assembled to the first base 11 and the second bearing 22 can be assembled to the second base 12, and then the first base 11 and the second base 12 can be assembled. During the assembly process, the bearings 20 and bearing housings 10 can be disassembled and assembled without axial pulling of the main shaft 30. This not only improves the convenience and difficulty of disassembly and assembly and reduces the cost of disassembly and assembly, but also reduces the impact on the bearings 20 and bearing housings 10 of other fixed foundations 300 in the same row during the disassembly and assembly process, thus improving the overall stability and reliability of the photovoltaic system 1000.

[0071] like Figure 3 As shown, according to some embodiments of this application, the open end of the first seat 11 is provided with a first connecting part 111, and the open end of the second seat 12 is provided with a second connecting part 121, and the first connecting part 111 is connected to the second connecting part 121.

[0072] Specifically, the first seat 11 and the second seat 12 have a U-shaped structure and an inverted U-shaped structure, respectively, and the two together form a first accommodating space a. The first bearing 21 and the second bearing 22 have a U-shaped structure and an inverted U-shaped structure, respectively, and the two together form a second accommodating space b. A first connecting part 111 and a second connecting part 121 are respectively provided on the first seat 11 and the second seat 12, and they are connected by the first connecting part 111 and the second connecting part 121. This can improve the structural strength and stability of the bearing seat 10, and reliably and stably realize the rotational engagement with the bearing 20 and the axial positioning of the bearing 20.

[0073] For example, both sides of the open end of the first seat 11 are provided with a first connecting part 111, and both sides of the open end of the second seat 12 are also provided with a second connecting part 121. The first connecting part 111 and the second connecting part 121 on the same side of the open end of the first seat 11 and the second seat 12 can be connected by a rotating pin, while the first seat 11 or the second seat 12 can rotate around the rotating pin. The first connecting part 111 and the second connecting part 121 on the other side of the open end of the first seat 11 and the second seat 12 are fastened by fasteners such as pins and bolts. The bearing seat 10 and the bearing 20 can be disassembled and assembled by flipping the first seat 11 or the second seat 12, which can further reduce the difficulty of disassembly and assembly, improve the efficiency of disassembly and assembly, and reduce the disassembly and assembly time and cost.

[0074] like Figure 2 , Figure 4 As shown, according to some embodiments of this application, the inner wall surface of the first bearing 21 defines a first profile segment 211, and the inner wall surface of the second bearing 22 defines a second profile segment 221. The axial projection profiles of the first profile segment 211 and / or the second profile segment 221 are at least partially consistent with the axial projection profile of the spindle 30.

[0075] In other words, in some embodiments, the axial projection profile of the first profile segment 211 is at least partially consistent with the axial projection profile of the main shaft 30; in other embodiments, the axial projection profile of the second profile segment 221 is at least partially consistent with the axial projection profile of the main shaft 30; and in a preferred embodiment, the axial projection profiles of both the first profile segment 211 and the second profile segment 221 are at least partially consistent with the axial projection profile of the main shaft 30.

[0076] In this way, while realizing the main shaft 30 passing through the second accommodating space b, the main shaft 30 can achieve anti-rotation limiting cooperation with at least one of the first bearing 21 and the second bearing 22, so that the main shaft 30 and the bearing 20 rotate more synchronously in the bearing seat 10, the photovoltaic panel 200 has a better following effect, and the reliability and stability of the photovoltaic system 1000 are higher.

[0077] According to some embodiments of this application, the axial projection profile of the spindle 30 is non-circular, and the first profile segment 211 and / or the second profile segment 221 are in contact with at least three sides of the spindle 30.

[0078] In some embodiments, the first contour segment 211 is in contact with at least three sides of the main shaft 30; in other embodiments, the second contour segment 221 is in contact with at least three sides of the main shaft 30. Figure 2 In the embodiment shown, the first contour segment 211 and the second contour segment 221 are both in contact with at least three sides of the main shaft 30.

[0079] In this way, at least one of the first bearing 21 and the second bearing 22 is conformally designed to fit the main shaft 30, which improves the stability and reliability of the connection between the bearing 20 and the main shaft 30. Furthermore, the synchronous rotation achieved through the contact of multiple sides can improve the stability and reliability of the synchronous rotation between the bearing 20 and the main shaft 30, reduce the probability of circumferential runout, thereby reducing the probability of failure of the bearing 20 or the bearing housing 10, improving the overall reliability and safety of the photovoltaic system 1000, and effectively extending its service life.

[0080] like Figure 1 As shown, according to some embodiments of this application, the photovoltaic support assembly 100 further includes: purlin 40, which is fixed to the main shaft 30 and connected to the photovoltaic panel 200.

[0081] Specifically, in combination Figure 6 The purlin 40 is fixed on the main shaft 30 and connected to the photovoltaic panel 200. This allows the photovoltaic panel 200 to rotate synchronously with the main shaft 30 during rotation. Each photovoltaic panel 200 can correspond to multiple purlins 40. The arrangement of multiple purlins 40 improves the stress distribution of the photovoltaic panel 200, making the stress distribution more uniform, reducing the probability of deformation or damage to the photovoltaic panel 200, and improving the safety, reliability, and service life of the photovoltaic system 1000.

[0082] like Figure 7 As shown, according to some embodiments of this application, the purlin 40 includes a body 41 and a connector 42. The body 41 is connected to the photovoltaic panel 200, the connector 42 is sleeved on the main shaft 30 and connected to the body 41, and at least a portion of the axial projection profile of the connector 42 in the axial direction is consistent with at least a portion of the axial projection profile of the main shaft 30.

[0083] Specifically, combined Figure 6As shown, at least a portion of the axial projection profile of the connector 42 is consistent with at least a portion of the axial projection profile of the spindle 30, which can improve the connection reliability and stability of the purlin 40 and the spindle 30, making the synchronization of the two higher, and the conformal design can reduce the material cost of the connector 42.

[0084] It should be noted that the connector 42 is a generally U-shaped connecting bolt, and both fixed arms (for connecting the body 41) and connecting arms (for connecting the two fixed arms) can be designed to conform to the shape, so as to improve the connection strength and synchronization, and reduce material costs.

[0085] like Figure 1 As shown, this application provides a photovoltaic system 1000, including: a photovoltaic support assembly 100 and a photovoltaic panel 200 as described in the above embodiment. The photovoltaic panel 200 is rotatably mounted on a fixed base 300 via the photovoltaic support assembly 100.

[0086] According to the photovoltaic system 1000 of the present application embodiment, by adopting the above-mentioned photovoltaic bracket assembly 100, under the premise of achieving synchronous following of multiple photovoltaic panels 200, the difficulty of disassembling and assembling any photovoltaic bracket assembly 100 in the photovoltaic system 1000 is lower, and when disassembling and assembling a certain photovoltaic bracket assembly 100, the impact on the surrounding photovoltaic panels 200 and the photovoltaic bracket assembly 100 is smaller. The overall photovoltaic system 1000 is easier to disassemble and assemble, easier to deploy, and has lower cost, and the overall cost is lower.

[0087] Other components and operations of the photovoltaic bracket assembly 100 and the photovoltaic system 1000 according to the embodiments of the present utility model are known to those skilled in the art and will not be described in detail here.

[0088] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0089] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A photovoltaic support module, characterized in that, include: A bearing housing (10) having a first accommodating space (a) defined inside, and the bearing housing (10) being connected to a fixed base (300); A bearing (20) and a spindle (30), the bearing (20) being rotatably disposed in the first receiving space (a), and the bearing (20) defining a second receiving space (b) for receiving the spindle (30); wherein The bearing housing (10) defines a spherical fit between the inner wall surface of the first accommodating space (a) and the outer surface of the bearing (20). In the axial direction of the main shaft (30), the angle between the tangent at the end point of the cross section of the mating surface of the bearing housing (10) and the tangent at the midpoint of the cross section is 5°-20°.

2. The photovoltaic support module according to claim 1, characterized in that, The axial dimension of the bearing (20) is greater than or equal to the axial dimension of the bearing housing (10).

3. The photovoltaic support module according to claim 1, characterized in that, The inner wall of the bearing housing (10) is a concave arc surface, and the outer surface of the bearing (20) is a convex arc surface, or the inner wall of the bearing housing (10) is a concave arc surface, and the outer surface of the bearing (20) is a convex arc surface.

4. The photovoltaic support module according to claim 1, characterized in that, The bearing housing (10) includes: a first seat (11) and a second seat (12) that are assembled to form a first accommodating space (a), wherein the first seat (11) and / or the second seat (12) are connected to a fixed base (300); The bearing (20) includes a first bearing (21) and a second bearing (22), the first bearing (21) and the second bearing (22) are assembled to form a second accommodating space (b), and the main shaft (30) passes through the second accommodating space (b).

5. The photovoltaic support module according to claim 4, characterized in that, The first seat (11) has a first connecting part (111) at its open end, and the second seat (12) has a second connecting part (121) at its open end. The first connecting part (111) is connected to the second connecting part (121).

6. The photovoltaic support module according to claim 4, characterized in that, The inner wall surface of the first bearing (21) defines a first profile segment (211), and the inner wall surface of the second bearing (22) defines a second profile segment (221). The axial projection profiles of the first profile segment (211) and / or the second profile segment (221) are at least partially consistent with the axial projection profile of the main shaft (30).

7. The photovoltaic support module according to claim 6, characterized in that, The axial projection profile of the spindle (30) is non-circular, and the first profile segment (211) and / or the second profile segment (221) are in contact with at least three sides of the spindle (30).

8. The photovoltaic support module according to any one of claims 1-7, characterized in that, The photovoltaic support assembly further includes: purlins (40), which are fixed to the main shaft (30) and connected to the photovoltaic panel (200).

9. The photovoltaic support module according to claim 8, characterized in that, The purlin (40) includes a body (41) and a connector (42). The body (41) is connected to the photovoltaic panel (200). The connector (42) is sleeved on the main shaft (30) and connected to the body (41). At least a portion of the axial projection profile of the connector (42) in the axial direction is consistent with at least a portion of the axial projection profile of the main shaft (30).

10. A photovoltaic system, characterized in that, include: Photovoltaic support assembly as described in any one of claims 1-9; A photovoltaic panel (200) is rotatably mounted on the fixed base (300) via the photovoltaic support assembly.

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