Photovoltaic tracking support and photovoltaic system

Abstract

The utility model discloses a photovoltaic tracking support and a photovoltaic system, and relates to the field of photovoltaic technology, and the photovoltaic tracking support comprises a photovoltaic support and a power assembly. The photovoltaic support comprises at least two rows of supporting shafts which are arranged in parallel, and the supporting shafts are used for supporting photovoltaic assemblies. The power assembly comprises power units and driven units, the power units are arranged on at least one row of supporting shafts, the driven units are arranged on the other rows of supporting shafts, and the power units are in transmission connection with the driven units so that the power units can drive all the rows of supporting shafts to rotate. According to the photovoltaic tracking support provided by the invention, the power unit and the driven unit are mechanically connected in the east-west direction to transmit torque, and a mechanical linkage device in the south-north direction can be cancelled, so that the installation amount of the photovoltaic tracking support can be reduced, the clamping stagnation risk of the mechanical linkage device caused by construction errors is reduced, and the reliability of the photovoltaic tracking support is improved. The installation convenience of the photovoltaic tracking support is improved, and later operation and maintenance can be facilitated.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and more specifically, to a photovoltaic tracking bracket and a photovoltaic system. Background Technology

[0002] There are two main ways to place photovoltaic modules in photovoltaic tracking brackets: vertical placement of double-row photovoltaic modules (hereinafter referred to as 2P) and vertical placement of single-row photovoltaic modules (hereinafter referred to as 1P). For 1P tracking brackets, there are three driving methods: single-row single-point drive, single-row multi-point drive, and double-row linkage. Traditional double-row linkage mainly uses mechanical linkage as the driving method, but it has a large number of connecting components, high requirements for construction error control, and a large installation volume. Conventional electrical linkage methods require the embedding of connecting cables, making operation and maintenance more difficult.

[0003] Therefore, how to improve the ease of installation of photovoltaic tracking brackets while facilitating subsequent operation and maintenance has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a photovoltaic tracking bracket that improves the ease of installation of the photovoltaic tracking bracket and facilitates its subsequent operation and maintenance.

[0005] Another objective of this application is to provide a photovoltaic system having the aforementioned photovoltaic tracking bracket.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A photovoltaic tracking bracket, comprising:

[0008] A photovoltaic support structure, comprising at least two rows of parallel support shafts for supporting photovoltaic modules;

[0009] The power assembly includes a power unit and a driven unit. The power unit is disposed on at least one row of the support shafts, and the driven unit is disposed on the remaining rows of the support shafts. The power unit and the driven unit are connected in a transmission connection so that the power unit drives each row of the support shafts to rotate.

[0010] Optionally, in the above-mentioned photovoltaic tracking bracket, the power unit includes at least one drive module and a control module. The drive module includes an active rotary reducer and a drive motor. The driven unit includes at least one driven rotary reducer. The active rotary reducer and the driven rotary reducer are connected through a transmission shaft. The drive motor is used to drive the active rotary reducer to rotate.

[0011] Optionally, in the above-mentioned photovoltaic tracking bracket, the photovoltaic bracket further includes columns for supporting both ends of the support shaft, and the drive module and the driven rotary reducer are respectively disposed on the columns of two adjacent rows of the support shaft.

[0012] Optionally, in the above-mentioned photovoltaic tracking bracket, the top of the column is provided with a rotary base for mounting the drive module or the driven rotary reducer.

[0013] Optionally, in the above-mentioned photovoltaic tracking bracket, the number of support shafts in each row is at least two, and the ends of two adjacent support shafts in each row are connected by shaft connectors.

[0014] Optionally, in the above-mentioned photovoltaic tracking bracket, the top of the column is provided with a column connecting plate and a bearing ring seat, and one of the two adjacent support shafts passes through the bearing ring seat and is connected to the other through the shaft connector.

[0015] Optionally, in the above-mentioned photovoltaic tracking bracket, a damper is provided on the column at the end of the photovoltaic bracket.

[0016] Optionally, in the above-mentioned photovoltaic tracking bracket, the bottom of the column is provided with an installation plate for connecting with the pile foundation, and the installation plate and the column are connected by stiffening ribs.

[0017] Optionally, in the above-mentioned photovoltaic tracking bracket, there are at least two photovoltaic brackets, and each photovoltaic bracket is arranged along the length direction of the support axis.

[0018] A photovoltaic system includes a photovoltaic module and a photovoltaic tracking bracket as described in any of the preceding claims. The photovoltaic module includes a photovoltaic panel and a fixing bracket. The photovoltaic panel is fixed to the support shaft by the fixing bracket, and the long side of the photovoltaic panel is arranged perpendicular to the length direction of the support shaft.

[0019] The photovoltaic tracking bracket provided in this application has at least two rows of support shafts arranged in parallel, allowing photovoltaic modules to be installed on the support shafts. A power unit is installed on at least one row of support shafts, and driven units are installed on the remaining rows. The power unit and the driven units are connected in a transmission manner, allowing the power unit to drive the rotation of each row of support shafts, thereby achieving the effect of rotating the photovoltaic modules. As can be seen from the above example, the photovoltaic tracking bracket provided in this application transmits torque through a mechanical connection between the power unit and the driven units in the east-west direction, eliminating the need for a north-south mechanical linkage device. This reduces the number of photovoltaic tracking brackets required, lowers the risk of jamming in the mechanical linkage device due to construction errors, improves the ease of installation of the photovoltaic tracking bracket, and facilitates subsequent operation and maintenance.

[0020] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the photovoltaic tracking bracket provided in Embodiment 1 of this application;

[0023] Figure 2 This is a schematic diagram of the structure of the photovoltaic tracking bracket provided in Embodiment 2 of this application;

[0024] Figure 3 A partial schematic diagram of the photovoltaic tracking bracket provided in the embodiments of this application. Figure 1 ;

[0025] Figure 4 A partial schematic diagram of the photovoltaic tracking bracket provided in the embodiments of this application. Figure 2 ;

[0026] Figure 5 This is a schematic diagram of the assembly of a photovoltaic module provided in an embodiment of this application.

[0027] Among them, 100 is a photovoltaic bracket, 101 is a support shaft, 102 is a column, 103 is a rotating base, 104 is a shaft connector, 105 is a column connecting plate, 1051 is a bearing ring seat, 106 is a damper, 107 is a mounting plate, and 108 is a stiffening rib.

[0028] 200 is the power assembly, 201 is the power unit, 2011 is the drive module, 2012 is the control module, 2013 is the active rotary reducer, 2014 is the drive motor, 202 is the driven unit, 2021 is the driven rotary reducer, and 203 is the transmission shaft.

[0029] 300 refers to photovoltaic modules;

[0030] 400 is for pile foundation. Detailed Implementation

[0031] The core of this application is to provide a photovoltaic tracking bracket that improves the ease of installation and facilitates subsequent operation and maintenance.

[0032] Another core aspect of this application is to provide a photovoltaic system with the aforementioned photovoltaic tracking bracket.

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and 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.

[0034] A horizontal single-axis tracking system arranges the rotation axis horizontally, typically in a north-south direction (north of the Tropic of Cancer). A drive motor rotates the support structure around a single east-west axis, ensuring the photovoltaic module's tilt angle remains perpendicular or nearly perpendicular to sunlight. This guarantees that sunlight always hits the photovoltaic module surface perpendicularly, improving its power generation efficiency. Horizontal single-axis tracking systems are typically based on north-south axis (NS axis) horizontal single-axis tracking systems.

[0035] Traditional photovoltaic (PV) tracking systems primarily employ two PV module placement methods: dual-row vertical PV module placement (hereinafter referred to as 2P) and single-row vertical PV module placement (hereinafter referred to as 1P). For 1P tracking brackets, the drive methods include single-row single-point drive, single-row multi-point drive, and dual-row linkage. Dual-row linkage primarily uses mechanical linkage, but it involves a large number of connecting components, requires stricter construction error control, and involves a significant installation volume. Conventional electrical linkage methods, on the other hand, require the embedding of connecting cables, leading to more difficult operation and maintenance.

[0036] Therefore, such as Figure 1 As shown in the figure, this application discloses a photovoltaic tracking bracket, including a photovoltaic bracket 100 and a power unit 200. Torque is transmitted in the east-west direction via a mechanical connection between the power unit 201 and the driven unit 202, eliminating the need for a north-south mechanical linkage device. This reduces the number of photovoltaic tracking brackets required, lowers the risk of jamming in the mechanical linkage device due to construction errors, improves the ease of installation of the photovoltaic tracking bracket, and facilitates subsequent operation and maintenance.

[0037] The following will combine Figures 1 to 5 The photovoltaic tracking bracket disclosed in the embodiments of this application will be explained and described in detail.

[0038] Among them, such as Figure 1As shown, the photovoltaic support 100 may include at least two rows of parallel support shafts 101, so that the photovoltaic module 300 can be mounted on the support shafts 101. Meanwhile, as... Figure 3 As shown, the power assembly 200 may include a power unit 201 and a driven unit 202. The power unit 201 is provided on at least one row of support shafts 101, and the driven units 202 are provided on the remaining rows of support shafts 101. The power unit 201 and the driven unit 202 are connected in a transmission connection so that the power unit 201 can drive each row of support shafts 101 to rotate, thereby achieving the effect of rotating the photovoltaic module 300, so as to ensure that sunlight always shines perpendicularly on the surface of the photovoltaic module 300 and improve the power generation efficiency of the photovoltaic module.

[0039] In some embodiments, such as Figure 1 As shown, the photovoltaic bracket 100 may include two rows of parallel support shafts 101, which may be distributed along an east-west direction. A power unit 201 is mounted on one row of support shafts 101, and a driven unit 202 is mounted on the other row of support shafts 101. The power unit 201 and the driven unit 202 are connected in an east-west direction to transmit torque via a mechanical connection. When the power unit 201 drives its corresponding support shaft 101 to rotate, it transmits torque to the support shaft 101 of the driven unit 202, thereby simultaneously driving the support shaft 101 of the driven unit 202 to rotate. This achieves the effect of linkage between the two rows of support shafts 101, eliminating the need for a north-south mechanical linkage device. This reduces the number of photovoltaic tracking brackets required, lowers the risk of jamming caused by construction errors in the mechanical linkage device, and improves the ease of installation and maintenance of the photovoltaic tracking bracket.

[0040] In some embodiments, the photovoltaic bracket 100 may include three rows of support shafts 101 arranged in parallel, and each row of support shafts 101 may be distributed along the east-west direction. A power unit 201 is provided on one row of support shafts 101, and a driven unit 202 is provided on the other two rows of support shafts 101.

[0041] When the power unit 201 is located on the support shaft 101 of one of the side rows, the power unit 201 can be connected to the driven unit 202 on the middle row support shaft 101 in an east-west direction. At the same time, the driven unit 202 on the middle row support shaft 101 is connected to the driven unit 202 on the support shaft 101 of the other side row in an east-west direction. The torque of the power unit 201 is transmitted to the support shafts 101 of the remaining rows in a mechanical connection. This enables the power unit 201 to drive the support shaft 101 of its location to rotate, thereby driving the support shafts 101 of the remaining rows of driven units 202 to rotate, thus achieving the effect of linkage of multiple rows of support shafts 101.

[0042] When the power unit 201 is located on the support shaft 101 of the middle row, the power unit 201 can be connected to the driven units 202 on the two side row support shafts 101 in the east-west direction. The torque of the power unit 201 is transmitted to the support shafts 101 of the other rows through mechanical connection. This enables the power unit 201 to drive the support shaft 101 of its own position to rotate, thereby driving the support shafts 101 of the other rows of driven units 202 to rotate, thus achieving the effect of linkage of multiple rows of support shafts 101.

[0043] Of course, the photovoltaic bracket 100 may also include four, five or more rows of parallel support shafts 101. A power unit 201 may be installed on one row of support shafts 101, and driven units 202 may be installed on the other rows of support shafts 101. Alternatively, power units 201 may be installed on two or more rows of support shafts 101, so that the torque of the power unit 201 can be transmitted to the other rows of support shafts 101 through mechanical connection. This allows the power unit 201 to drive the support shaft 101 it is on to rotate, thereby driving the support shafts 101 of the other rows of driven units 202 to rotate, thus achieving the effect of linkage of multiple rows of support shafts 101.

[0044] In some embodiments, such as Figure 2 As shown, the photovoltaic support 100 can also adopt two or more short support structures, and each photovoltaic support 100 can be arranged at intervals along the length direction of the support axis 101 to adapt to complex terrain environments. The specific number and length of the photovoltaic support 100 can be flexibly selected and determined according to actual usage requirements.

[0045] In some embodiments, the power unit 201 may include at least one drive module 2011 and a control module 2012, i.e., as shown in the figure. Figure 2 As shown, the drive module 2011 and the control module 2012 can each be one, or they can be set to two, three, or more depending on the length of the photovoltaic bracket 100, such as... Figure 1 As shown, the rotation state of the drive module 2011 can be controlled by the control module 2012. For example, Figure 3 As shown, the drive module 2011 may include a driving rotary reducer 2013 and a drive motor 2014, while the driven unit 202 may include at least one driven rotary reducer 2021, i.e. Figure 2 As shown, the driven rotary reducer 2021 can be one corresponding to the drive module 2011, or it can be two, three or more depending on the length of the photovoltaic bracket 100, such as... Figure 1 As shown, and configured accordingly with the driver module 2011. Also, as... Figure 3As shown, the active rotary reducer 2013 and the driven rotary reducer 2021 can be connected by a transmission shaft 203, so that the active rotary reducer 2013 can be driven to rotate by the drive motor 2014, and the torque can be transmitted to the driven rotary reducer 2021 through the transmission shaft 203. Thus, when the drive motor 2014 drives the active rotary reducer 2013 to rotate the support shaft 101 where it is located, it drives the support shaft 101 of the other rows of driven rotary reducers 2021 to rotate, thereby achieving the effect of linkage of multiple rows of support shafts 101, and reducing the angle difference between different rotations, resulting in better synchronization.

[0046] In some embodiments, such as Figures 1 to 5 As shown, the photovoltaic support 100 may further include columns 102 supported at both ends of the support shaft 101, so that both ends of the support shaft 101 can be installed on the top of the column 102, thereby transferring the upper load from the column 102 to the pile foundation 400. Furthermore, the drive module 2011 and the driven rotary reducer 2021 can be respectively mounted on the columns 102 of two adjacent rows of support shafts 101, and the control module 2012 can be tied to the support shaft 101 in the same row as the drive module 2011.

[0047] In some embodiments, such as Figure 3 As shown, the column 102 can be made of I-beam steel, and the width direction of the two flanges of the column 102 is parallel to the length direction of the support shaft 101. A rotary base 103 for mounting the drive module 2011 or the driven rotary reducer 2021 can be provided on the top of the column 102. The rotary base 103 can be fixed to the two flanges of the column 102 by bolts or other fasteners to ensure the reliability of the installation of the drive module 2011 or the driven rotary reducer 2021. At the same time, a reinforcing plate can also be welded to the rotary base 103 to improve the overall strength and rigidity of the rotary base 103 and ensure the stability of the operation of the drive module 2011 or the driven rotary reducer 2021.

[0048] In some embodiments, such as Figure 4As shown, each row of support shafts 101 can have at least two shafts, meaning there can be two, three, four, or more shafts per row. The ends of two adjacent support shafts 101 in each row can be connected via shaft connectors 104. Simultaneously, a column connecting plate 105 and a bearing housing 1051 can be provided at the top of the column 102. One of two adjacent support shafts 101 can pass through the bearing housing 1051 and be connected to the other via shaft connectors 104. Optionally, the column connecting plate 105 can have a U-shaped structure and can be fixed to the two flanges of the column 102 using bolts or other fasteners to ensure the reliability of the bearing housing 1051 installation. The shaft connector 104 can have a clamping structure, allowing the ends of two adjacent support shafts 101 to be inserted into the shaft connector 104 and clamped using locking bolts or other fasteners to achieve a reliable connection between the ends of the two adjacent support shafts 101. In this embodiment, the shaft connectors 104 at the ends of two adjacent support shafts 101 are located near the column 102. In other embodiments, the shaft connectors 104 at the ends of two adjacent support shafts 101 may be located at a distance from the column 102.

[0049] In some embodiments, such as Figure 3 and Figure 4 As shown, the bottom of the column 102 may be provided with an mounting plate 107 to facilitate connection with the pile foundation 400, thereby increasing the contact area between the bottom of the column 102 and the pile foundation 400 and ensuring the connection strength between the bottom of the column 102 and the pile foundation 400. Furthermore, a stiffening rib 108 may be connected between the mounting plate 107 and the column 102, thereby improving the strength and rigidity of the bottom of the column 102. Optionally, the stiffening ribs 108 may be welded to the two flanges of the column 102 and the mounting plate 107 respectively to improve the connection strength between the mounting plate 107 and the column 102, ensuring the strength and rigidity of the bottom of the column 102.

[0050] In some embodiments, such as Figure 2 As shown, a damper 106 can also be installed on the column 102 at the end of the photovoltaic support 100. During the operation of the photovoltaic tracking support, when it is subjected to the impact and vibration of external factors such as wind force and inertial force, the damper 106 can absorb and dissipate the energy generated by the impact and vibration, thereby effectively reducing the vibration amplitude and frequency of the photovoltaic tracking support and ensuring the stable operation of the photovoltaic tracking support.

[0051] The photovoltaic tracking bracket provided in this application has at least two rows of support shafts 101 arranged in parallel so that the photovoltaic module 300 can be installed on the support shafts 101. At the same time, a power unit 201 is provided on at least one row of support shafts 101, and a driven unit 202 is provided on the remaining rows of support shafts 101. The power unit 201 and the driven unit 202 are connected in a transmission connection so that the power unit 201 can drive each row of support shafts 101 to rotate, thereby achieving the effect of rotating the photovoltaic module 300.

[0052] As can be seen from the above embodiments, the photovoltaic tracking bracket provided in this application transmits torque in the east-west direction through a mechanical connection between the power unit 201 and the driven unit 202, and can eliminate the mechanical linkage device in the north-south direction. This reduces the amount of photovoltaic tracking bracket installation, lowers the risk of jamming of the mechanical linkage device caused by construction errors, and improves the ease of installation of the photovoltaic tracking bracket while facilitating subsequent operation and maintenance.

[0053] This application also discloses a photovoltaic system, such as... Figure 5 As shown, the system includes a photovoltaic module 300 and a photovoltaic tracking bracket. This photovoltaic tracking bracket is the same as the one disclosed in the above embodiment, and therefore possesses all the technical effects of the aforementioned photovoltaic tracking brackets, which will not be repeated here. The photovoltaic module 300 may include a photovoltaic panel and a fixing bracket. The photovoltaic panel can be fixed to the support shaft 101 via the fixing bracket, and the long side of the photovoltaic panel is arranged perpendicular to the length direction of the support shaft 101, i.e., the long side of the photovoltaic panel is arranged along the east-west direction, thereby increasing the number of photovoltaic panels installed, thus increasing the installed capacity per unit area and improving power generation efficiency.

[0054] The terms "first" and "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units may include steps or units not listed, but rather not listed.

[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A photovoltaic tracking bracket, characterized in that, include: A photovoltaic support bracket (100) includes at least two rows of parallel support shafts (101) for supporting photovoltaic modules (300). The power assembly (200) includes a power unit (201) and a driven unit (202). The power unit (201) is provided on at least one row of the support shafts (101), and the driven unit (202) is provided on the remaining rows of the support shafts (101). The power unit (201) and the driven unit (202) are connected in a transmission connection so that the power unit (201) drives each row of the support shafts (101) to rotate.

2. The photovoltaic tracking bracket according to claim 1, characterized in that, The power unit (201) includes at least one drive module (2011) and a control module (2012). The drive module (2011) includes an active rotary reducer (2013) and a drive motor (2014). The driven unit (202) includes at least one driven rotary reducer (2021). The active rotary reducer (2013) and the driven rotary reducer (2021) are connected by a transmission shaft (203). The drive motor (2014) is used to drive the active rotary reducer (2013) to rotate.

3. The photovoltaic tracking bracket according to claim 2, characterized in that, The photovoltaic bracket (100) also includes columns (102) for supporting both ends of the support shaft (101), and the drive module (2011) and the driven rotary reducer (2021) are respectively disposed on the columns (102) of the two adjacent rows of the support shaft (101).

4. The photovoltaic tracking bracket according to claim 3, characterized in that, The top of the column (102) is provided with a rotary base (103) for mounting the drive module (2011) or the driven rotary reducer (2021).

5. The photovoltaic tracking bracket according to claim 3, characterized in that, The number of each row of the support shafts (101) is at least two, and the ends of two adjacent support shafts (101) in each row are connected by shaft connectors (104).

6. The photovoltaic tracking bracket according to claim 5, characterized in that, The top of the column (102) is provided with a column connecting plate (105) and a bearing ring seat (1051), and one of the two adjacent support shafts (101) passes through the bearing ring seat (1051) and is connected to the other through the shaft connector (104).

7. The photovoltaic tracking bracket according to claim 3, characterized in that, A damper (106) is provided on the column (102) at the end of the photovoltaic support (100).

8. The photovoltaic tracking bracket according to claim 3, characterized in that, The bottom of the column (102) is provided with an installation plate (107) for connecting with the pile foundation (400), and a stiffening rib (108) is connected between the installation plate (107) and the column (102).

9. The photovoltaic tracking bracket according to any one of claims 1 to 8, characterized in that, There are at least two photovoltaic brackets (100), and each photovoltaic bracket (100) is arranged along the length direction of the support axis (101).

10. A photovoltaic system, characterized in that, The device includes a photovoltaic module (300) and a photovoltaic tracking bracket as described in any one of claims 1 to 9. The photovoltaic module (300) includes a photovoltaic panel and a fixing bracket. The photovoltaic panel is fixed to the support shaft (101) by the fixing bracket, and the long side of the photovoltaic panel is arranged perpendicular to the length direction of the support shaft (101).

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