Photovoltaic support and photovoltaic system

Abstract

The utility model discloses a photovoltaic support and a photovoltaic system. The photovoltaic support comprises a mounting support; the rotating assembly is rotatably mounted on the mounting bracket around a first axis, and the rotating assembly is configured to be used for mounting a photovoltaic assembly; the balance weight assembly is fixed to the rotating assembly and suitable for synchronously rotating relative to the mounting support along with the rotating assembly, and the natural vibration frequency of the balance weight assembly is different from the natural vibration frequency of the mounting support. Therefore, eccentric torque generated when the photovoltaic assembly and the rotating assembly rotate can be balanced through the counterweight assembly, so that the eccentric torque generated in the rotating process of the photovoltaic assembly can be reduced, the driving torque needed when the photovoltaic assembly rotates is reduced, and the loss power of the photovoltaic support in the driving process is reduced; and the counterweight assembly can play a role in suppressing vibration, so that resonance of the photovoltaic bracket is avoided, and the stability of the photovoltaic bracket is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic equipment, and particularly relates to a photovoltaic support and a photovoltaic system. Background Art

[0002] Currently, in a photovoltaic tracking support, there is a certain distance between the center of gravity position of a photovoltaic module and the rotation axis.

[0003] In the related art, when the photovoltaic module rotates around the rotation axis with the rotation main shaft, the photovoltaic module will form a certain deflection angle with the horizontal plane, thereby generating an eccentric torque at the photovoltaic tracking support, and the eccentric torque will increase as the rotation angle of the photovoltaic module increases, which will cause a larger driving torque to be required when driving the photovoltaic module deflected relative to the horizontal position, resulting in an increase in the loss power in the photovoltaic tracking support. Summary of the Utility Model

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, an object of the present application is to provide a photovoltaic support with the ability to balance the center and good stability.

[0005] Another object of the present application is to provide a photovoltaic system.

[0006] The photovoltaic support according to the first aspect embodiment of the present application includes a mounting bracket; a rotating assembly, the rotating assembly is rotatably mounted on the mounting bracket around a first axis, and the rotating assembly is configured to mount a photovoltaic module; a counterweight assembly, the counterweight assembly is fixed on the rotating assembly and is adapted to rotate synchronously with the rotating assembly relative to the mounting bracket, and the natural vibration frequency of the counterweight assembly is different from the natural vibration frequency of the mounting bracket.

[0007] In the present application, the counterweight assembly is arranged on the rotating assembly, and the counterweight assembly can rotate synchronously with the rotating assembly. The eccentric torque generated during the rotation of the photovoltaic module and the rotating assembly can be balanced by the counterweight assembly, thereby reducing the eccentric torque generated during the rotation of the photovoltaic module, reducing the driving torque required when the photovoltaic module rotates, and reducing the loss power during the driving process of the photovoltaic support. At the same time, the counterweight assembly can play a role in suppressing vibration, avoiding resonance of the photovoltaic support, and further improving the stability of the photovoltaic support.

[0008] According to some embodiments of the present application, the rotating assembly includes: a rotating main shaft, the rotating main shaft is rotatably mounted on the mounting bracket around the first axis; a rotating bracket, the rotating bracket is fixedly connected to the rotating main shaft, and the rotating bracket is used to mount a photovoltaic module.

[0009] According to some embodiments of the present application, the counterweight assembly includes: a counterweight rod, one end of the counterweight rod is connected to the rotating main shaft, and the counterweight rod extends in the radial direction of the first axis; a counterweight block, the counterweight block is connected to the other end of the counterweight rod.

[0010] According to some embodiments of the present application, the counterweight block includes: a housing, the housing has a cavity; a counterweight member, the counterweight member is placed in the cavity, and the position of the counterweight member in the cavity is adjustable relative to the housing.

[0011] According to some embodiments of the present application, the counterweight block further includes: a slide rod, the slide rod is fixed in the cavity, and the counterweight member is sleeved on the slide rod and can slide along the slide rod; a spring, the spring is sleeved on the slide rod and elastically supports between the wall surface of the cavity and the counterweight member.

[0012] According to some embodiments of the present application, the counterweight assembly further includes a connecting ring, the connecting ring is used to connect the counterweight block to the counterweight rod to suspend the counterweight block below the counterweight rod; or, the counterweight assembly further includes a pin shaft, the pin shaft is used to rotatably connect the counterweight rod and the counterweight block.

[0013] According to some embodiments of the present application, the counterweight assembly further includes a hoop assembly, the hoop assembly includes: a first clamp, the first clamp is fixedly connected to the end of the counterweight rod and forms a first clamping groove that opens towards the rotating main shaft; a second clamp, the second clamp forms a second clamping groove that opens towards the rotating main shaft, the first clamp and the second clamp are connected, and the rotating main shaft is clamped in the first clamping groove and the second clamping groove.

[0014] According to some embodiments of the present application, the rotating bracket further includes: a purlin, the purlin is arranged on the side of the rotating main shaft away from the mounting bracket and forms a mounting surface, the mounting surface is used to mount the photovoltaic module; a connecting seat, the connecting seat is connected to the purlin and fixes the rotating main shaft between the purlin and the connecting seat; a support rod, the support rod is connected and supported between the purlin and the connecting seat.

[0015] According to some embodiments of the present application, the extending direction of the counterweight rod is perpendicular to the mounting surface.

[0016] According to some embodiments of the present application, the rotating assembly includes multiple sets of the rotating assembly, and multiple sets of the rotating assembly are arranged at intervals in the axial direction of the rotating main shaft.

[0017] According to some embodiments of the present application, the photovoltaic support further includes a rotation driving device, which is installed on the installation bracket, and the rotation driving device is connected to the rotation main shaft and is used to drive the rotation main shaft to rotate.

[0018] The photovoltaic system according to the embodiment of the second aspect of the present application includes the above-mentioned photovoltaic support.

[0019] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above-mentioned and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0021] Figure 1 is a schematic structural diagram of a photovoltaic system according to an embodiment of the present application Figure 1 ;

[0022] Figure 2 is a schematic structural diagram of a photovoltaic system according to an embodiment of the present application Figure 2 ;

[0023] Figure 3 is a schematic structural diagram of a photovoltaic support according to an embodiment of the present application;

[0024] Figure 4 is Figure 3 a partial enlarged view circled at A in

[0025] Figure 5 is a schematic structural diagram of a counterweight assembly according to an embodiment of the present application Figure 1 ;

[0026] Figure 6 is a schematic structural diagram of a counterweight assembly according to an embodiment of the present application Figure 2 ;

[0027] Figure 7 is a schematic structural diagram of a counterweight assembly according to an embodiment of the present application Figure 3 ;

[0028] Figure 8 is a schematic diagram of the cooperation of a counterweight, a sliding rod and a spring according to an embodiment of the present application;

[0029] Figure 9 is a side view of a photovoltaic system according to an embodiment of the present application.

[0030] Reference numerals:

[0031] Photovoltaic system 1000;

[0032] Photovoltaic support 100; Photovoltaic module 200;

[0033] Mounting bracket 1; Column 11;

[0034] Rotating assembly 2; Rotating main shaft 21; Rotating bracket 22; Purlin 221; Mounting surface 2211; Connecting seat 222; Support rod 223;

[0035] Counterweight assembly 3; Counterweight rod 31; Counterweight block 32; Housing 321; First shell 3211; Second shell 3212; Counterweight member 322; Slide rod 323; Spring 324; Connecting ring 33; Pin shaft 34; Clamping assembly 35; First clamp 351; Second clamp 352;

[0036] Rotating drive device 4; Hydraulic drive rod 41; Drive seat 42. Detailed implementation manner

[0037] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0038] Below with reference to Figures 1 - 9 Describe the photovoltaic support 100 according to the embodiment of the present application. The photovoltaic support 100 is applied to the photovoltaic system 1000 and is used to install and support the photovoltaic module 200 (such as a photovoltaic panel), and the angle of the photovoltaic module 200 on the photovoltaic support 100 is adjustable.

[0039] The photovoltaic support 100 according to the embodiment of the present application includes a mounting bracket 1, a rotating assembly 2 and a counterweight assembly 3.

[0040] Refer to Figure 3 , the mounting bracket 1 is the mounting carrier of the rotating assembly 2. The rotating assembly 2 can be supported through the mounting bracket 1, and the rotating assembly 2 is configured to install the photovoltaic module 200. The counterweight assembly 3 is fixed on the rotating assembly 2, and the counterweight assembly 3 can rotate synchronously with the rotating assembly 2 relative to the mounting bracket 1 to adjust the center of gravity position of the mounting bracket 1 and the photovoltaic module 200 mounted on the mounting bracket 1 through the counterweight assembly 3, and improve the stability during the process of adjusting the inclination angle of the photovoltaic module 200.

[0041] Among them, the rotating assembly 2 is rotatably mounted on the mounting bracket 1 around the first axis. When the rotating assembly 2 rotates relative to the mounting bracket 1, it can drive the counterweight assembly 3 to rotate synchronously.

[0042] The natural vibration frequency of the counterweight assembly 3 in this application is different from that of the mounting bracket 1. When the photovoltaic support 100 is impacted (such as by wind), the vibration frequency at the counterweight assembly 3 is different from that at the mounting bracket 1, thereby preventing resonance problems caused by the same vibration frequency of the counterweight assembly 3 and the mounting bracket 1, and playing a role in suppressing the vibration of the photovoltaic support 100.

[0043] It should be noted that currently, in a photovoltaic tracking support, there is a certain distance between the center of gravity position of the photovoltaic module and the rotation axis. When the photovoltaic module rotates around the rotation axis with the rotation main shaft, the photovoltaic module will form a certain deflection angle with the horizontal plane, thereby generating an eccentric torque at the photovoltaic tracking support, and the eccentric torque will increase as the rotation angle of the photovoltaic module increases, resulting in a greater driving torque required for the photovoltaic module deflected relative to the horizontal position during driving, causing an increase in the power loss in the photovoltaic tracking support. At the same time, problems such as resonance are likely to occur at the photovoltaic tracking support, affecting the stability of the photovoltaic tracking support.

[0044] In this application, the counterweight assembly 3 is arranged on the rotating assembly 2, and the counterweight assembly 3 can rotate synchronously with the rotating assembly 2. By means of the counterweight assembly 3, the eccentric torque generated during the rotation of the photovoltaic module 200 and the rotating assembly 2 can be balanced, thereby reducing the eccentric torque generated during the rotation of the photovoltaic module 200, reducing the driving torque required when the photovoltaic module 200 rotates, and reducing the power loss during the driving process of the photovoltaic support 100. At the same time, the counterweight assembly 3 can play a role in suppressing vibration, avoiding resonance of the photovoltaic support 100, and further improving the stability of the photovoltaic support 100.

[0045] In a further embodiment of this application, the rotating assembly 2 includes a rotating main shaft 21 and a rotating bracket 22. The rotating main shaft 21 is rotatably mounted on the mounting bracket 1 around a first axis, the rotating bracket 22 is fixedly connected to the rotating main shaft 21, and the rotating bracket 22 is used for mounting the photovoltaic module 200. That is to say, during the adjustment of the inclination angle of the photovoltaic module 200, the photovoltaic module 200, the rotating assembly 2, and the counterweight assembly 3 rotate synchronously. By means of the counterweight assembly 3, the position adjustment of the rotating assembly 2 and the photovoltaic module 200 can be balanced, improving the stability and balance of the photovoltaic module 200 during the inclination angle adjustment process. Among them, the first axis can be the central axis of the rotating main shaft 21.

[0046] It can be understood that when the photovoltaic module 200 and the rotating bracket 22 are tilted to one side relative to the horizontal setting position, the center of gravity of the photovoltaic module 200 and the rotating bracket 22 will shift towards the tilted side. The counterweight assembly 3 rotates synchronously with the rotating main shaft 21, and the center of gravity of the counterweight assembly 3 will be adjusted towards the other side (i.e., the opposite direction of the side where the center of gravity of the photovoltaic module 200 and the rotating bracket 22 is offset). Thus, the center of gravity position of the overall photovoltaic module 200, rotating bracket 22, and counterweight assembly 3 is adjusted through the counterweight assembly 3, thereby reducing the influence of the eccentric torque of the photovoltaic module 200, and further reducing the torque magnitude and power consumption required when the rotating assembly 2 is driven.

[0047] As Figure 3 shown, in some embodiments of the present application, the counterweight assembly 3 includes a counterweight rod 31 and a counterweight block 32. One end of the counterweight rod 31 is connected to the rotating main shaft 21, and the counterweight rod 31 extends along the radial direction of the first axis. The counterweight block 32 is connected to the other end of the counterweight rod 31.

[0048] Among them, one end of the counterweight rod 31 is connected to the rotating main shaft 21. During the rotation of the rotating main shaft 21, the counterweight rod 31 rotates synchronously with the rotating main shaft 21, and the counterweight rod 31 drives the counterweight block 32 to move to balance the eccentric torque generated during the rotation of the photovoltaic module 200. The structure of the counterweight assembly 3 is simple and convenient for assembly, and at the same time, it is also convenient for designing the center of gravity position of the counterweight assembly 3.

[0049] It can be understood that when the weight of the counterweight block 32 remains unchanged, by adjusting the extension length of the counterweight rod 31, the center of gravity position of the counterweight assembly 3 can be adjusted to adjust the counterweight assembly 3 according to the rotation balance requirements of the photovoltaic module 200.

[0050] In some embodiments of the present application, the counterweight block 32 includes a housing 321 and a counterweight member 322. The housing 321 has a cavity, and the counterweight member 322 is arranged in the cavity, and the position of the counterweight member 322 in the cavity is adjustable relative to the housing 321. That is to say, when the counterweight block 32 is vibrated by an impact force, the counterweight member 322 can change its position in the cavity, thereby providing different vibration frequencies for the rotating assembly 2 through the counterweight block 32 to avoid resonance.

[0051] It should be noted that when the photovoltaic tracking bracket is affected by the wind, a certain degree of vibration will occur at the photovoltaic tracking bracket. The eccentric torque generated under the deflected state of the photovoltaic module will further increase the vibration amplitude of the photovoltaic module, thereby expanding the impact damage to the mounting bracket of the photovoltaic module.

[0052] In the present application, the position of the counterweight 322 within the cavity is adjustable, such that the counterweight 32 can transmit vibrations at the same or different frequencies to the rotating assembly 2 through the counterweight rod 31, preventing the photovoltaic module 200, the rotating assembly 2, and the counterweight assembly 3 from vibrating at the same frequency (i.e., resonance), thereby reducing the impact of wind on the photovoltaic support 100 and preventing damage to the photovoltaic support 100.

[0053] Among them, the counterweight 322 may include, but is not limited to, sediment, liquid media (such as water, etc.), metal blocks, etc., and no specific limitation is made here.

[0054] In some embodiments of the present application, the counterweight 32 further includes a sliding rod 323 and a spring 324. The sliding rod 323 is fixed within the cavity, and the counterweight 322 is sleeved on the sliding rod 323, and the counterweight 322 can slide along the sliding rod 323. The spring 324 is sleeved on the sliding rod 323, and the spring 324 elastically supports between the wall of the cavity and the counterweight 322.

[0055] When the counterweight 32 is subjected to vibrations, the counterweight 322 can slide on the sliding rod 323, and the force between the counterweight 322 and the housing 321 can be transmitted to the spring 324. The spring 324 can provide different vibration frequencies for the counterweight 32 and further transmit different vibration frequencies to the rotating assembly 2, avoiding resonance in the photovoltaic support 100 and reducing the risk of damage to the photovoltaic support 100 due to resonance.

[0056] Refer to Figure 8 As shown, two springs 324 are configured, and the two springs 324 are respectively arranged on both sides of the sliding direction of the counterweight 322 to enhance the vibration buffering ability of the counterweight 32. When the counterweight 322 slides along the extension direction of the sliding rod 323 to one side, the counterweight 322 will press against one of the two springs 324 and stretch the other spring 324.

[0057] It can be understood that the counterweight 32 is installed on the rotating main shaft 21 through the counterweight rod 31, such that the counterweight assembly 3 is configured as a cantilever structure, and the counterweight 32 is arranged at the end of the cantilever. Through the cooperation of the counterweight 322, the sliding rod 323, and the spring 324 in the counterweight 32, the impact on one side of the counterweight 32 can be buffered, and different vibration frequencies can be provided to the rotating assembly 2 side, effectively preventing resonance.

[0058] Refer to Figure 6 As shown, in a further embodiment of the present application, the counterweight rod 31 is fixedly connected to the counterweight 32, thereby ensuring the force transmission effect between the counterweight 32 and the counterweight rod 31, and transmitting different vibration frequencies from the counterweight 32 to the counterweight rod 31 side.

[0059] Among them, the cooperation form of the above counterweight 322, slide bar 323 and spring 324 can be arranged in the embodiment where the counterweight rod 31 and the counterweight block 32 are fixed.

[0060] In some embodiments of the present application, the housing 321 includes a first housing 3211 and a second housing 3212. The first housing 3211 and the second housing 3212 are snap-fitted and cooperate to define the above-mentioned cavity, and the first housing 3211 and the second housing 3212 are fixedly connected, such as: by means of installation cooperation methods such as threaded connection and snap connection.

[0061] Among them, during the assembly process of the counterweight block 32, the counterweight 322, slide bar 323 and spring 324 can be assembled in the installation cavity formed by the first housing 3211 first, and then the second housing 3212 and the first housing 3211 are assembled and fixed, thereby reducing the assembly difficulty of the counterweight block 32.

[0062] Such as Figure 5 As shown, in some embodiments of the present application, the counterweight assembly 3 further includes a connecting ring 33. The connecting ring 33 is used to connect the counterweight block 32 and the counterweight rod 31 to suspend the counterweight block 32 below the counterweight rod 31.

[0063] Among them, when the photovoltaic module 200 is affected by a large wind speed and causes vibration at the photovoltaic support 100, the vibration frequency at the connecting ring 33 is different from the vibration frequency at the rotating assembly 2 (such as: the rotating bracket 22), thereby preventing resonance from occurring between the counterweight assembly 3 and the rotating assembly 2.

[0064] It can be understood that when the counterweight rod 31 and the counterweight block 32 are connected and cooperated through the connecting ring 33, through-hole structures for the connecting ring 33 to pass through are respectively provided on the counterweight rod 31 and the counterweight block 32.

[0065] In some alternative embodiments, the connecting ring 33 can be formed by winding steel strands. The steel strands have high structural strength, which can improve the connection reliability between the counterweight block 32 and the counterweight rod 31. At the same time, the fixed frequency of the steel strands is quite different from the fixed frequency at the rotating assembly 2, thereby staggering the resonance frequency and avoiding resonance at the photovoltaic support 100. It should be noted that the formation method of the connecting ring 33 is not limited to this, and it can also be formed by a rope structure such as a nylon rope, which is not specifically limited here.

[0066] Such as Figure 7 As shown, in some other embodiments of the present application, the counterweight assembly 3 further includes a pin shaft 34. The pin shaft 34 is used to rotatably connect the counterweight rod 31 and the counterweight block 32. Among them, when the counterweight rod 31 and the counterweight block 32 are connected and cooperated through the pin shaft 34, pin hole structures for the pin shaft 34 to pass through are formed on both the counterweight rod 31 and the counterweight block 32.

[0067] Furthermore, the internal structure of the counterweight block 32 is a hollow structure, that is, the counterweight block 32 has a cavity. The cavity can be used to fill materials, and the materials in the cavity can provide a vibration frequency different from that of the rotating assembly 2 for the counterweight block 32, thereby avoiding the phenomenon of resonance at the photovoltaic support 100.

[0068] As Figure 5 , Figure 6 and Figure 7 shown, in some embodiments of the present application, the counterweight assembly 3 further includes a hoop assembly 35. The hoop assembly 35 includes: a first clamp 351 and a second clamp 352. The first clamp 351 is fixedly connected to the end of the counterweight rod 31, and the first clamp 351 forms a first slot opening towards the rotating main shaft 21. The second clamp 352 forms a second slot opening towards the rotating main shaft 21. The first clamp 351 and the second clamp 352 are connected, and the rotating main shaft 21 is clamped in the first slot and the second slot. Thus, through the cooperation of the hoop assembly 35 and the rotating main shaft 21, the fixed connection between the counterweight rod 31 and the rotating main shaft 21 is realized, and the installation method of the hoop assembly 35 is simple and highly reliable, which can reduce the assembly difficulty between the counterweight assembly 3 and the rotating main shaft 21.

[0069] Furthermore, when the rotating main shaft 21 is configured as a shaft structure with a constant cross-sectional size in the axial direction, the adaptability between the hoop assembly 35 and the rotating main shaft 21 can be improved, facilitating the adjustment of the arrangement position of the hoop assembly 35 relative to the rotating main shaft 21 according to the torque balance requirement.

[0070] Among them, the first clamp 351 and the second clamp 352 can be connected and fixed through threaded connectors, such as bolts and nuts.

[0071] As Figure 4 shown, in some embodiments of the present application, the rotating bracket 22 further includes: a purlin 221, a connection seat 222, and a support rod 223. The purlin 221 is arranged on the side of the rotating main shaft 21 away from the mounting bracket 1, and the purlin 221 forms a mounting surface 2211 for mounting the photovoltaic module 200. The connection seat 222 is connected to the purlin 221 and can fix the rotating main shaft 21 between the purlin 221 and the connection seat 222, thereby realizing the connection and fixation between the rotating bracket 22 and the rotating main shaft 21, enabling the rotating bracket 22 to rotate synchronously with the rotating main shaft 21.

[0072] Referring to Figure 4 , the purlin 221 and the connection seat 222 are respectively arranged on both sides of the rotating main shaft 21 in the radial direction, and the purlin 221 and the connection seat 222 are fixedly connected to clamp and fix the rotating main shaft 21 in a clamping and cooperating manner.

[0073] Among them, the purlin 221 and the connecting seat 222 can also be connected by threaded connectors, such as bolts and nuts, etc. The connection and cooperation between the purlin 221 and the connecting seat 222 are not limited herein.

[0074] In some embodiments of the present application, the rotating bracket 22 further includes a support rod 223. The support rod 223 is connected and supported between the purlin 221 and the connecting seat 222 to further enhance the structural strength of the rotating bracket 22 and improve the bearing capacity of the rotating bracket 22 through the support rod 223.

[0075] As Figure 9 shown, in some embodiments of the present application, the extending direction of the counterweight rod 31 is perpendicular to the installation surface 2211.

[0076] It can be understood that the installation surface 2211 is the installation position for the photovoltaic module 200. The installation surface 2211 is usually arranged in contact with the photovoltaic module 200 to improve the cooperation effect between the photovoltaic module 200 and the installation surface 2211. When the photovoltaic module 200 is in a horizontal position, the counterweight rod 31 can maintain a vertical posture, and the counterweight block 32 is arranged directly below the rotating main shaft 21. That is to say, when the photovoltaic module 200 is in a horizontal position, no eccentric torque is generated at the photovoltaic module 200, and there is no need for the counterweight assembly 3 to balance. Keeping the counterweight assembly 3 in a vertically arranged position can prevent the counterweight assembly 3 from applying a torsional force to the rotating main shaft 21.

[0077] As Figure 3 shown, in some embodiments of the present application, the rotating assembly 2 includes multiple sets of rotating assemblies 2, and the multiple sets of rotating assemblies 2 are arranged at intervals in the axial direction of the rotating main shaft 21 to jointly install and support the photovoltaic module 200 through the multiple sets of rotating assemblies 2. Among them, the arrangement quantity of the rotating assemblies 2 and the distance between two adjacent arranged rotating assemblies 2 can be designed according to the arrangement requirements of the photovoltaic module 200, and the assembly method between the photovoltaic module 200 and the rotating assembly 2 is not limited herein.

[0078] As Figure 3 shown, in some embodiments of the present application, the mounting bracket 1 includes multiple columns 11, and the multiple columns 11 are arranged at intervals in the axial direction of the first axis.

[0079] Among them, the rotating main shaft 21 is rotatably installed on the column 11. By arranging multiple columns 11, the bearing capacity of the mounting bracket 1 can be improved to prevent the rotating main shaft 21 from bending and deforming under the gravity of the photovoltaic module 200 and the rotating assembly 2.

[0080] Refer to Figure 3, the counterweight assembly 3 is arranged near the column 11 of the rotating main shaft 21, so as to reduce the deflection influence of the counterweight assembly 3 on the rotating main shaft 21.

[0081] As Figure 3 and Figure 4 shown, in some embodiments of the present application, the photovoltaic support 100 further includes a rotation driving device 4. The rotation driving device 4 is installed on the installation bracket 1, and the rotation driving device 4 is connected to the rotating main shaft 21, and the rotation driving device 4 is used to drive the rotating main shaft 21 to rotate, so as to realize the inclination angle adjustment of the photovoltaic module 200.

[0082] In a further embodiment of the present application, the rotation driving device 4 includes a hydraulic driving rod 41 and a driving seat 42. One end of the hydraulic driving rod 41 is rotatably connected to the installation bracket 1, the other end of the hydraulic driving rod 41 is connected to the driving seat 42, and the driving seat 42 is fixedly connected to the rotating main shaft 21, so as to drive the driving seat 42 to move by controlling the telescopic movement of the hydraulic driving rod 41, so as to realize the inclination angle adjustment of the photovoltaic module 200.

[0083] For the photovoltaic support 100 according to the embodiment of the present application, the length of the balance rod and the weight of the counterweight 32 can be calculated according to the magnitude of the eccentric torque.

[0084] Referring to Figure 9 , the photovoltaic module 200 is in a horizontal arrangement position. Among them, the support of the rotating main shaft 21 is D1, the dimension of the purlin 221 in the vertical direction is D2, the dimension of the photovoltaic module 200 in the vertical direction is H, the distance between the center of gravity of the counterweight rod 31 and the counterweight 32 to the rotating main shaft 21 is L, the mass of each photovoltaic module 200 is M, the number of photovoltaic modules 200 corresponding to each counterweight rod 31 is n, and the mass of the counterweight 32 is m. Without considering the mass of the counterweight rod 31 and the purlin 221, the balance torque calculation formula can be obtained as: n×M×(D1 / 2 + D2 + H / 2) = m×(L + D1 / 2).

[0085] Therefore, the counterweight assembly 3 can be designed based on the above formula.

[0086] The photovoltaic module 100 according to the embodiment of the present application has at least the following advantages:

[0087] (1). The eccentric torque generated when the photovoltaic module 200 is inclined can be balanced by the counterweight assembly 3, reducing the torque magnitude and power consumption required when the rotation driving device 4 drives.

[0088] (2). The influence of the eccentric torque generated when the photovoltaic module 200 is inclined on the rotating main shaft 21 can be reduced by the counterweight assembly, reducing the cumulative deformation amount at the rotating main shaft 21 and reducing the tracking angle deviation.

[0089] (3) The counterweight assembly 3 can provide different vibration frequencies for the photovoltaic support 100, effectively preventing resonance at the photovoltaic support 100, and reducing the impact of vibration on the photovoltaic support 100 while reducing the eccentric torque.

[0090] The photovoltaic system 1000 according to an embodiment of the present application includes the above-mentioned photovoltaic support 100.

[0091] Among them, a photovoltaic module 200 is further provided in the photovoltaic system 1000. The photovoltaic module 200 is installed on the photovoltaic support 100 to balance the eccentric torque of the photovoltaic module 200 in a non-horizontal position through the photovoltaic support 100, reduce the torque magnitude and power consumption required for rotating and driving the photovoltaic module 200. At the same time, reduce the influence of the eccentric torque generated by the photovoltaic module 200 on the rotating main shaft 21, and reduce the cumulative deformation amount at the rotating main shaft 21, thereby reducing the tracking angle deviation.

[0092] In the description of the present application, it should be understood that the orientation or positional relationship indicated by 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. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0093] In the description of the present application, the "first feature" and "second feature" may include one or more of such features.

[0094] In the description of the present application, the meaning of "a plurality" is two or more.

[0095] In the description of the present application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0096] In the description of the present application, the first feature being "above", "above" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal height than the second feature.

[0097] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0098] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A photovoltaic support, characterized in that, Comprising: Mounting bracket (1); Rotating assembly (2), which is rotatably mounted on the mounting bracket (1) about a first axis and is configured to mount a photovoltaic module (200); Counterweight assembly (3), which is fixed to the rotating assembly (2) and is adapted to rotate synchronously with the rotating assembly (2) relative to the mounting bracket (1), and the natural vibration frequency of the counterweight assembly (3) is different from the natural vibration frequency of the mounting bracket (1).

2. The photovoltaic support according to claim 1, wherein The rotating assembly (2) includes: Rotating main shaft (21), which is rotatably mounted on the mounting bracket (1) about the first axis; Rotating bracket (22), which is fixedly connected to the rotating main shaft (21), and the rotating bracket (22) is used to mount the photovoltaic module (200).

3. The photovoltaic support according to claim 2, characterized in that, The counterweight assembly (3) includes: Counterweight rod (31), one end of which is connected to the rotating main shaft (21), and the counterweight rod (31) extends in the radial direction of the first axis; Counterweight block (32), which is connected to the other end of the counterweight rod (31).

4. The photovoltaic support according to claim 3, characterized in that, The counterweight block (32) includes: Shell (321), which has a cavity; Counterweight member (322), which is placed in the cavity, and the position of the counterweight member (322) in the cavity is adjustable relative to the shell (321).

5. The photovoltaic support according to claim 4, characterized in that, The counterweight block (32) further includes: Slide rod (323), which is fixed in the cavity, and the counterweight member (322) is sleeved on the slide rod (323) and can slide along the slide rod (323); Spring (324), which is sleeved on the slide rod (323) and elastically supports between the wall surface of the cavity and the counterweight member (322).

6. The photovoltaic support according to claim 3, characterized in that, The counterweight assembly (3) further includes a connecting ring (33), which is used to connect the counterweight block (32) to the counterweight rod (31) to suspend the counterweight block (32) below the counterweight rod (31); Or, the counterweight assembly (3) further includes a pin shaft (34), which is used to rotatably connect the counterweight rod (31) to the counterweight block (32).

7. The photovoltaic support according to claim 3, characterized in that The counterweight assembly (3) further includes a hoop assembly (35), and the hoop assembly (35) includes: First clamp (351), which is fixedly connected to the end of the counterweight rod (31) and forms a first card slot that opens towards the rotating main shaft (21); Second clamp (352), which forms a second card slot that opens towards the rotating main shaft (21), the first clamp (351) and the second clamp (352) are connected, and the rotating main shaft (21) is clamped in the first card slot and the second card slot.

8. The photovoltaic support according to claim 3, characterized in that, The rotating bracket (22) further includes: Purlin (221), the purlin (221) is arranged on a side of the rotating main shaft (21) away from the mounting bracket (1), and forms a mounting surface (2211), and the mounting surface (2211) is used for mounting the photovoltaic module (200); Connecting seat (222), the connecting seat (222) is connected to the purlin (221), and fixes the rotating main shaft (21) between the purlin (221) and the connecting seat (222); Support rod (223), the support rod (223) is connected and supported between the purlin (221) and the connecting seat (222).

9. The photovoltaic support according to claim 8, characterized in that, The extending direction of the counterweight rod (31) is perpendicular to the mounting surface (2211).

10. The photovoltaic support according to claim 2, wherein The rotating assembly (2) includes multiple groups of the rotating assemblies (2), and the multiple groups of the rotating assemblies (2) are arranged at intervals in the axial direction of the rotating main shaft (21).

11. The photovoltaic support according to claim 2, characterized in that, Further includes a rotation driving device (4), the rotation driving device (4) is mounted on the mounting bracket (1), and the rotation driving device (4) is connected to the rotating main shaft (21) and is used for driving the rotating main shaft (21) to rotate.

12. A photovoltaic system, characterized in that, Includes the photovoltaic bracket according to any one of claims 1-11.

Images