Support system of photovoltaic module

Abstract

The utility model relates to a support system of a photovoltaic module. The support system comprises a photovoltaic support and auxiliary devices oppositely arranged at the two ends of the photovoltaic support. The auxiliary device comprises steering supporting structures arranged on the two sides of a main shaft in the photovoltaic support and supporting tensioning structures connected with the steering supporting structures. The steering supporting structure is configured to synchronously rotate along with the main shaft; the supporting and tensioning structure comprises a transition part and a flexible connecting piece; the transition part is configured to be fixed on the side of the photovoltaic support and located below the steering supporting structure; after the flexible connecting piece is wound on the transition part, the two ends of the flexible connecting piece are respectively wound on the steering supporting structures and then are respectively connected to the photovoltaic modules in the photovoltaic bracket; the flexible connecting piece is in sliding fit with the transition part and the steering supporting structure. According to the invention, the problems of swinging and twisting of the photovoltaic assembly caused by factors such as wind power in the outdoor use process of the existing photovoltaic support are effectively solved, so that the reliability and stability of the photovoltaic support and the assembly are improved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a support system for photovoltaic modules. Background Technology

[0002] With the continuous development of photovoltaic technology, photovoltaic support systems, as one of the key devices for improving photovoltaic power generation efficiency, are becoming increasingly important.

[0003] Currently, there are various types of photovoltaic (PV) support systems in existing technologies. A typical PV support system consists of a column → a rotating mechanism system → a main shaft → a flat panel support system → PV panels. The rotating mechanism system is responsible for the PV panels tracking the sun. One type of PV support system is called 10, such as... Figure 1 As shown, the photovoltaic support 10 includes a foundation pile 12, a main shaft 11 connected to the foundation pile 12 by a clamp, a connecting beam 14 connected to the main shaft 11 by bolts, and photovoltaic modules 15 connected to the connecting beam 14 by bolts. A control system 13 is installed in the foundation pile 12, which controls a rotating mechanism such as a motor to drive the main shaft 11 to deflect, thereby causing the photovoltaic modules 15 to deflect together.

[0004] The aforementioned photovoltaic support system has the following problems: In natural environments with strong winds, the photovoltaic module 15 may sway or twist, thereby affecting the product life of the photovoltaic module 15 and also negatively impacting the service life of the photovoltaic support system 10. Utility Model Content

[0005] Based on this, a photovoltaic module support system is provided, which effectively solves the problem of swaying and twisting of photovoltaic modules caused by wind and other factors during outdoor use of existing photovoltaic supports, thereby improving the reliability and stability between the photovoltaic support and the modules.

[0006] To address the above problems, this application provides a photovoltaic module support system, comprising: a photovoltaic support and auxiliary devices disposed at opposite ends of the photovoltaic support; the auxiliary devices include a steering support structure disposed on both sides of a main shaft in the photovoltaic support and a support and tensioning structure connected to the steering support structure; the steering support structure is configured to rotate synchronously with the main shaft; the support and tensioning structure includes a transition portion and a flexible connector; the transition portion is configured to be fixed to the side of the photovoltaic support and located below the steering support structure; after the flexible connector is wrapped around the transition portion, its two ends are respectively wrapped around the steering support structure and connected to the photovoltaic module in the photovoltaic support; the flexible connector, the transition portion, and the steering support structure are in sliding engagement.

[0007] Preferably, the turning support structure comprises auxiliary supports for fixed support and turning portions for winding the flexible connecting members; the auxiliary supports are fixed to the main shaft and provided with opposite ends; the ends of the auxiliary supports are located on the two sides of the main shaft respectively, and the turning portions are arranged respectively.

[0008] Preferably, the two ends of the flexible connecting members are integrally connected with the flexible connecting members in the auxiliary supports after winding the turning portions respectively.

[0009] Preferably, the photovoltaic assembly is provided with a plurality of track guide plates distributed along the path of the flexible connecting members passing through the photovoltaic assembly; the track guide plates are provided with track grooves, and the flexible connecting members are arranged in the track grooves and connected in sliding mode.

[0010] Preferably, the support tensioning structure further comprises auxiliary fixed bases arranged on the sides of the photovoltaic support and used for fixedly mounting the transition portions.

[0011] Preferably, the transition portions are configured as driving wheels arranged to rotate around their own axes on the auxiliary fixed bases; the turning portions are configured as driven wheels arranged to rotate around their own axes on the ends of the auxiliary supports.

[0012] Preferably, the centers of the driven wheels at the two ends of the auxiliary supports are on the same horizontal line.

[0013] Preferably, the driven wheels at the two ends of the auxiliary supports and the driving wheels of the auxiliary fixed bases are distributed in a triangular shape.

[0014] Preferably, at least one set of the auxiliary fixed bases is provided with a power member; the power member is used to drive the driving wheels to rotate.

[0015] Preferably, the power member is configured as a power motor, and the power motor and the motor in the photovoltaic support are controlled by a control system and maintain the same rotating speed.

[0016] Preferably, the flexible connecting members are configured as flexible ropes.

[0017] The present application has at least the following beneficial effects:

[0018] First, a set of auxiliary devices is added at the positions of both ends of the photovoltaic support. In the process of deflecting the photovoltaic module by the main shaft, the flexible connecting pieces in the auxiliary devices can slide on the transition part to adapt to the tension on the photovoltaic module, thereby effectively restricting the amplitude of the photovoltaic module when it is swung and twisted by the wind, and reducing the swing and twist of the photovoltaic module and the main shaft through the additional support force and tension provided by the auxiliary devices, thereby increasing the overall stability and reliability.

[0019] Second, on the basis of the support of the main shaft, the flexible connecting pieces of the auxiliary devices provide support, so that the photovoltaic module can cope with more severe use scenarios such as complex terrain and variable climate. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of a photovoltaic support in the prior art;

[0021] Figure 2 is a structural schematic diagram of a support system of a photovoltaic module in the embodiment of the present application;

[0022] Figure 3 is a structural schematic diagram of an auxiliary device in the embodiment of the present application;

[0023] Figure 4 is a structural schematic diagram of an auxiliary fixed base in the embodiment of the present application;

[0024] Figure 5 is a structural schematic diagram of an auxiliary support in the embodiment of the present application.

[0025] REFERENCE NUMERALS:

[0026] 10, photovoltaic support; 11, main shaft; 12, foundation pile; 13, control system; 14, connecting cross beam; 15, photovoltaic module; 151, trajectory guide plate;

[0027] 20, auxiliary device; 21, transition part; 211, driving wheel; 22, flexible connecting piece; 23, auxiliary support; 231, auxiliary cross beam; 232, auxiliary bottom beam; 233, mounting area; 24, turning part; 241, driven wheel; 25, auxiliary fixed base; 251, ear plate; 252, rotating shaft; 26, power piece; 261, power motor. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0029] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0030] Using existing photovoltaic (PV) brackets to install PV modules can cause the PV modules to sway or twist in strong winds. One reason for this is the lack of effective restraint on the PV modules. Based on this, this application provides a PV module bracket system that can assist the PV bracket in providing more effective restraint on the PV modules. This effectively solves the problem of swaying and twisting of PV modules caused by wind and other factors during outdoor use of existing PV brackets, thereby improving the reliability and stability of the PV bracket and modules.

[0031] The following detailed description, in conjunction with the accompanying drawings, illustrates a photovoltaic module support system provided in this embodiment. Please refer to the attached drawings. Figure 2 As shown, the support system includes: a photovoltaic support 10 and auxiliary devices 20, with the auxiliary devices 20 positioned opposite each other at both ends of the photovoltaic support 10. Figure 2 The diagram only shows one end equipped with an auxiliary device 20. The auxiliary device 20 includes a steering support structure disposed on both sides of the main shaft 11 in the photovoltaic bracket 10 and a support tensioning structure connected to the steering support structure. The steering support structure is configured to rotate synchronously with the main shaft 11. The support tensioning structure includes a transition portion 21 and a flexible connector 22. The transition portion 21 is configured to be fixed to the side of the photovoltaic bracket 10 and located below the steering support structure. After the flexible connector 22 is wrapped around the transition portion 21, its two ends are respectively wrapped around the steering support structure and connected to the photovoltaic module 15 in the photovoltaic bracket 10. The flexible connector 22, the transition portion 21 and the steering support structure are in sliding fit.

[0032] In the embodiment, a set of auxiliary devices 20 is added at both ends of the photovoltaic support 10, and the additional support force and tension force provided by the auxiliary devices 20 can reduce the swing and vibration of the photovoltaic assembly 15 and the main shaft 11, thereby increasing the overall stability and reliability. Specifically, a transition part 21 that can be fixed is arranged beside the photovoltaic support 10 and below the turning support structure, the turning support structure is arranged on both sides of the main shaft 11 and is configured to rotate synchronously with the main shaft 11, the flexible connecting member 22 is wound on the transition part 21, and both ends of the flexible connecting member 22 are wound on the turning support structure and connected to the photovoltaic assembly 15 in the photovoltaic support 10, respectively. The flexible connecting member 22 and the transition part 21 and the turning support structure are in sliding fit, thereby providing support force and tension force for both ends of the photovoltaic assembly 15 through the flexible connecting member 22, reducing the swing and vibration of the photovoltaic assembly 15 and the main shaft 11, and thereby increasing the overall stability and reliability. Specifically, when the photovoltaic assembly 15 is in the horizontal protection state during the operation of the photovoltaic assembly 15, the flexible connecting member 22 has the same length on both sides of the transition part 21. When the control system 13 controls the motor and other rotating mechanisms to drive the main shaft 11 and the photovoltaic assembly 15 to rotate together with the sun (this part is the prior art in the field, and will not be described in detail here), the turning support structure rotates synchronously with the main shaft 11 and drives the flexible connecting member 22 to slide on the transition part 21. The flexible connecting member 22 slides to the side of deflection on both sides of the transition part 21 (as shown in Figure 3 , the solid arrow indicates sliding to the right side, and the dashed arrow indicates sliding to the left side), that is, the lengths of the flexible connecting member 22 on both sides of the transition part 21 are not equal. It can be understood that the photovoltaic assembly 15 can be tensioned through the flexible connecting member 22 during deflection, thereby effectively restricting the amplitude of the photovoltaic assembly 15 when it swings and vibrates due to wind.

[0033] In the embodiment, it needs to be noted that please refer to Figures 2-4 , the support and tension structure further includes an auxiliary fixed base 25, which is arranged beside the photovoltaic support 10 and is used for fixedly mounting the transition part 21. A single pile 12 is separately arranged beside the photovoltaic support 10, and the single pile 12 corresponds to the auxiliary fixed base 25 in the support and tension structure, that is, the single pile 12 is separately arranged for fixedly mounting the auxiliary fixed base 25. The auxiliary fixed base 25 can be connected to the top end of the single pile 12 by bolts, and the height of the additional single pile 12 is lower than the height of the single pile 12 in the photovoltaic support 10, so that the auxiliary fixed base 25 is arranged below the bottom of the photovoltaic assembly 15, that is, below the turning support structure. Of course, in other embodiments, a column or other component can be added as a support component of the auxiliary fixed base 25.

[0034] In some embodiments, the transition part 21 is provided as a driving wheel 211, and the driving wheel 211 is configured to be rotatable around the axis of itself on the auxiliary fixing base 25. In order to facilitate the rotation of the driving wheel 211, the auxiliary fixing base 25 is further provided with a power member 26, which can be a control motor 261, for driving the rotation of the driving wheel 211. The control motor 261 is fixed on the auxiliary fixing base 25, and the output shaft of the control motor 261 is connected with the driving wheel 211. Thus, the control motor 261 can control the rotation of the driving wheel 211 synchronously during the deflection of the photovoltaic module 15. The driving wheel 211 can slide on the turning support structure with the flexible connecting member 22 through the sliding friction between them, thereby providing additional power for the sliding of the flexible connecting member 22.

[0035] In one installation example, the auxiliary fixing base 25 is provided with two vertical and opposite ears 251, and a rotating shaft 252 is rotatably connected between the two ears 251. The axis of the rotating shaft 252 is consistent with the axis of the main shaft 11. The driving wheel 211 is provided outside one of the ears 251 and is connected with the rotating shaft 252 through a pin shaft. The output shaft of the control motor 261 is provided outside the other ear 251 and is connected with the rotating shaft 252 through a key. Thus, the control motor 261 can indirectly control the rotation of the driving wheel 211 by controlling the rotating shaft 252. In this way, the connection between the control motor 261 and the driving wheel 211 can be operated separately, which is convenient for maintenance.

[0036] In this embodiment, it is also necessary to note that, as shown in Figure 2 , Figure 3 and Figure 5 , the turning support structure includes an auxiliary support 23 for fixing and supporting and a turning part 24 for winding the flexible connecting member 22. The auxiliary support 23 is fixed on the main shaft 11 and is provided with two opposite ends. The two ends of the auxiliary support 23 are respectively located on the two sides of the main shaft 11, and the turning part 24 is provided on each end. Thus, the transition part 21 and the two turning parts 24 form a stable triangular relationship. After the flexible connecting member 22 is wound around the driving wheel 211, the two ends of the flexible connecting member 22 are respectively wound around the turning parts 24 of the auxiliary support 23 and are connected to the photovoltaic module 15 in the photovoltaic support 10. The flexible connecting member 22 and the turning part 24 are in sliding fit.

[0037] In some embodiments, the auxiliary support 23 comprises an auxiliary cross beam 231 and an auxiliary bottom beam 232, the auxiliary cross beam 231 is arranged between the main shaft 11 and the photovoltaic module 15, the lower surface of the auxiliary cross beam 231 is fixed on the main shaft 11, the auxiliary cross beam 231 is arranged perpendicular to the main shaft 11, and then the two ends of the auxiliary cross beam 231 are located on the two sides of the main shaft 11 respectively. The auxiliary bottom beam 232 is fixed on the lower surface of the auxiliary cross beam 231, and the auxiliary bottom beam 232 is arranged in a similar U-shaped structure, and a mounting area 233 with an open side is formed between the auxiliary bottom beam 232 and the auxiliary cross beam 231, which is just for the main shaft 11 to pass through and install. The auxiliary bottom beam 232 can further support and lift the main shaft 11. Specifically, during assembly, the upper surface of the main shaft 11 abuts against the lower surface of the auxiliary cross beam 231, the lower surface of the main shaft 11 abuts against the upper surface of the auxiliary bottom beam 232, and the main shaft 11 is connected with the auxiliary cross beam 231 and the auxiliary bottom beam 232 by bolts or the like, and then the main shaft 11 and the auxiliary support 23 are connected into a whole by bolts or the like, and the two can rotate synchronously.

[0038] In some embodiments, the turning part 24 is arranged as a driven wheel 241, and the driven wheel 241 is arranged to rotate around its own axis at the end of the auxiliary cross beam 231, and the driven wheel 241 is connected with the end of the auxiliary cross beam 231 by a shaft or the like, and then can rotate freely. The centers of the driven wheels 241 at the two ends of the auxiliary cross beam 231 are on the same horizontal line, and then the driven wheels 241 at the two ends of the auxiliary cross beam 231 and the driving wheel 211 of the auxiliary fixed base 25 form a triangular distribution, preferably an equilateral triangle or an isosceles triangle. By arranging the two driven wheels 241 and the driving wheel 211 in a triangular shape, the stability of the flexible connecting piece 22 can be improved when winding, and at the same time, when the photovoltaic module 15 deflects, the flexible connecting piece 22 can slide on the driving wheel 211 in the deflection direction of the photovoltaic module 15, thereby providing tension to the photovoltaic module 15.

[0039] In this embodiment, it also needs to be explained that, as shown in Figure 2 and Figure 3 , the flexible connecting piece 22 is arranged as a flexible rope, which can increase the connection reliability of the photovoltaic support 10, thereby further tensioning the photovoltaic module 15, and the flexible rope has good fatigue resistance, which can reduce the risk of stress deformation and damage of the photovoltaic support 10, thereby prolonging the service life of the support. In addition, the use of the flexible rope also reduces the use of foundation concrete and earthwork of the number of foundation piles, which is conducive to environmental protection and energy saving and emission reduction, and reduces the installation and maintenance cost. Preferably, the flexible rope can be a flexible steel rope.

[0040] In some embodiments, after the flexible rope in one of the auxiliary devices 20 winds around the driving wheel 211, the two ends of the flexible rope are each wound around the driven wheel 241 and then connected to the flexible rope in the auxiliary device 20 arranged opposite to it. It can be understood that the auxiliary devices 20 at both ends of the photovoltaic support 10 can wind all the driving wheels 211 and the driven wheels 241 by using one complete flexible rope, and the flexible rope and the photovoltaic assembly 15 are uniformly connected on the route passing through the photovoltaic assembly 15.

[0041] In some embodiments, the lower surface of the photovoltaic assembly 15 is fixed with a plurality of track guide plates 151, the plurality of track guide plates 151 are distributed along the path of the flexible rope passing through the photovoltaic assembly 15, and the track guide plate 151 is provided with a track groove, the extension direction of the track groove is consistent with the extension direction of the main shaft 11, and the flexible rope is arranged in the track groove and is in sliding fit. By using the track guide plate 151, the up-and-down position of the flexible rope can be limited, so that the flexible rope can only slide along the extension direction of the track groove, thereby realizing the tensioning of the flexible rope.

[0042] In the present embodiment, it is also necessary to point out that the control motor 261 and the motor in the photovoltaic support 10 are controlled by the control system 13, and the rotational speeds of the two are kept synchronous. By controlling the control system 13 to control the driving motor 261 connected to the driving wheel 211 in the photovoltaic support 10 and the driven wheel 241 driven by the flexible connecting piece 22 to rotate synchronously, the photovoltaic assembly 15 connected to the cross beam 14 on the main shaft 11 is driven to rotate synchronously, and finally the photovoltaic assembly 15, the main shaft 11 and the flexible connecting piece 22 are driven to rotate synchronously. In this process, the flexible connecting piece 22, the driving wheel 211 and the driven wheel 241 are all dynamic friction, which can reduce the friction therebetween. Of course, for those skilled in the art, the control system 13 is used to control the motor driving mode, which belongs to mature technology, and will not be described in detail here.

[0043] The implementation principle of the embodiment is as follows: the flexible connecting piece 22 in one of the auxiliary devices 20 is wound around the driving wheel 211 of the auxiliary fixing base 25, and the two ends of the flexible connecting piece 22 are respectively wound around the driven wheels 241 at the two ends of the auxiliary cross beam 231, and then the two ends of the flexible connecting piece 22 are connected to the flexible connecting piece 22 in the auxiliary device 20 arranged opposite to the flexible connecting piece 22, and the flexible connecting piece 22 and the photovoltaic module 15 are connected through the track guide plate 151. Thus, the control system 13 controls the motor in the main shaft 11 and the control motor 261 in the auxiliary device 20 to synchronously operate and keep the same rotating speed, the control motor 261 controls the driving wheel 211 to rotate, the flexible connecting piece 22 acts as a medium to drive the driven wheel 241 to rotate, and then the photovoltaic module 15 connected to the cross beam 14 on the main shaft 11 rotates in tracking, and finally the photovoltaic module 15 rotates synchronously with the main shaft 11 and the flexible connecting piece 22. Thus, the flexible connecting piece 22 provides additional supporting force and tensioning force, reduces the swing and torsion of the photovoltaic module 15 and the main shaft 11, and thus increases the overall stability and reliability.

[0044] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present application.

[0045] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent application scope. It should be pointed out that for ordinary skilled persons in the art, some modifications 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 patent protection scope of the present application should be subject to the appended claims.

Claims

1. A racking system for photovoltaic modules, characterized in that, The photovoltaic support (10) and the auxiliary device (20) arranged at both ends of the photovoltaic support (10) relative to each other. The auxiliary device (20) comprises a turning support structure arranged on both sides of the main shaft (11) in the photovoltaic support (10) and a support tensioning structure connected with the turning support structure. The turning support structure is configured to rotate synchronously with the main shaft (11). The support tensioning structure comprises a transition part (21) and a flexible connecting piece (22). The transition part (21) is configured to be fixed beside the photovoltaic support (10) and below the turning support structure. After winding around the transition part (21), both ends of the flexible connecting piece (22) are respectively connected to the photovoltaic components (15) in the photovoltaic support (10) after winding around the turning support structure. The flexible connecting piece (22) is in sliding fit with the transition part (21) and the turning support structure.

2. The photovoltaic component support system according to claim 1, wherein The turning support structure comprises an auxiliary support (23) for fixed support and a turning part (24) for winding the flexible connecting piece (22). The auxiliary support (23) is fixed to the main shaft (11) and arranged with opposite ends. The ends of the auxiliary support (23) are respectively arranged on both sides of the main shaft (11) and the turning part (24) is arranged respectively.

3. The photovoltaic component support system according to claim 2, wherein After winding around the turning part (24), both ends of the flexible connecting piece (22) are respectively connected to the flexible connecting piece (22) in the auxiliary device (20) arranged opposite to each other.

4. The photovoltaic component support system according to claim 3, wherein The photovoltaic component (15) is arranged with a plurality of track guide plates (151) distributed along the path of the flexible connecting piece (22) passing through the photovoltaic component (15). The track guide plate (151) is provided with a track groove, and the flexible connecting piece (22) is arranged in the track groove and in sliding connection. The support tensioning structure further comprises an auxiliary fixing base (25) arranged beside the photovoltaic support (10) and for fixed installation of the transition part (21).

5. A racking system for photovoltaic modules according to any of claims 2-4, characterized in that, 6. The photovoltaic component support system according to claim 5, wherein The transition part (21) is arranged as a driving wheel (211) configured to be arranged in self-rotation around its own axis center on the auxiliary fixing base (25). The turning part (24) is arranged as a driven wheel (241) configured to be arranged in self-rotation around its own axis center on the end of the auxiliary support (23).

7. The photovoltaic component support system according to claim 6, wherein The centers of the driven wheels (241) at both ends of the auxiliary support (23) are on the same horizontal line. And / or, ​ The driven wheels (241) at both ends of the auxiliary support (23) and the driving wheels (211) of the auxiliary fixed base (25) are triangularly distributed.

8. The support system of photovoltaic module according to claim 5, wherein, At least one set of the auxiliary fixed base (25) is provided with a power element (26); The power element (26) is used to drive the driving wheels (211) to rotate.

9. The support system of photovoltaic module according to claim 8, wherein, The power element (26) is set as a power motor (261), and the power motor (261) and the motor in the photovoltaic support (10) are controlled by a control system (13), and the rotating speeds of the two are kept synchronous.

10. The support system of photovoltaic module according to claim 1, wherein, The flexible connecting element (22) is set as a flexible rope.

Images