Photovoltaic tracking support system

Abstract

The invention relates to the technical field of photovoltaics, in particular to a photovoltaic tracking support system which is characterized in that a plurality of supporting mechanisms are connected to a main beam at equal intervals in the length direction, a fixing seat is fixedly connected to the upper end of a second supporting leg, a fixing frame is fixedly connected to the upper end of the fixing seat, a connecting shaft is rotationally connected to the fixing frame, and the connecting shaft is connected with the main beam through a fixing mechanism; an arc-shaped opening is formed in the upper end of the main beam, an arc edge is arranged at the bottom end of the main beam, and a first sliding bearing is connected to the fixing base and matched with the arc edge. The arc-shaped edge is in sliding contact with the first sliding bearing, the arc-shaped opening is in sliding contact with the second sliding bearing, and the arc-shaped opening and the arc-shaped edge are concentrically arranged, so that the rotation center line and the gravity center line coincide, the needed driving torque is small, low-torque and high-stability photovoltaic panel rotation control is achieved, and meanwhile the wind resistance is improved after the structure is optimized; and the wind resistance is high.

Description

Technical Field

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

[0002] In photovoltaic power generation systems, photovoltaic brackets, as key structural components that support and secure photovoltaic modules, play a crucial role in the performance of the entire system. Traditional fixed brackets typically determine the installation angle of the photovoltaic modules based on the inclination angle at the time of maximum local solar radiation throughout the year. Once the bracket is installed, the angle cannot be adjusted, or only seasonal manual adjustments can be made. Due to the Earth's rotation and revolution, the azimuth and altitude of the sun are constantly changing. Fixed brackets are unable to track the changes in the sun's position in real time. As a result, sunlight cannot be incident vertically on the surface of the photovoltaic modules at many times of the day, which greatly limits the photovoltaic modules' efficiency in absorbing and utilizing solar energy.

[0003] The photovoltaic tracking bracket can adjust the angle of the photovoltaic panel in real time according to the change of the sun's angle of radiation to maximize the efficiency of light energy capture. In the existing technology, a motor is usually used to drive the bracket to rotate to achieve this function. However, since the rotation center and the center of gravity of the bracket structure often do not coincide, the resistance during rotation is large, and the motor needs to output a higher driving torque. Therefore, a high-power motor has to be used, which not only increases the system energy consumption and cost, but also affects the lightweight design of the overall structure. In addition, the traditional bracket lacks an effective guidance and stabilization mechanism during rotation, and is prone to obvious shaking due to mechanical gaps or wind force. Especially in strong wind environments, the bracket's wind resistance is poor, and the photovoltaic panel is prone to shaking or even structural deformation. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art that the rotation center and the center of gravity of the bracket structure often do not coincide, resulting in large resistance during rotation, requiring the motor to output a higher driving torque, and at the same time, obvious shaking caused by wind force, and poor wind resistance of the bracket, and to propose a photovoltaic tracking bracket system.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A photovoltaic tracking bracket system is designed, including a first supporting leg and a second supporting leg, the upper end of the first supporting leg is fixedly connected to a driving mechanism, the output end of the driving mechanism is connected to a main beam, a number of supporting mechanisms are connected to the main beam at equal intervals along the length direction, the upper end of the second supporting leg is fixedly connected to a fixing seat, the upper end of the fixing seat is fixedly connected to a fixing frame, a connecting shaft is rotatably connected to the fixing frame, the connecting shaft is connected to the main beam through a fixing mechanism, the upper end of the main beam is provided with an arc-shaped opening, the bottom end of the main beam is provided with an arc edge, the fixing seat is connected to a first sliding bearing, and the first sliding bearing cooperates with the arc edge.

[0007] Preferably, the driving mechanism includes a reducer, the reducer is fixedly connected to the upper end of the first supporting leg, the output end of the reducer is fixedly connected to a switching flange, and the switching flange is connected to the main beam.

[0008] Preferably, the support mechanism includes a first fixing ring, the upper end of the first fixing ring is fixedly connected to a bracket, the main beam passes through the gap between the first fixing ring and the bracket, both sides of the upper end of the first fixing ring are fixedly connected to support plates, and both sides of the upper end of the support plate are connected to the photovoltaic panel through screw fixings.

[0009] Preferably, the bracket and the support plate are an integrated structure.

[0010] Preferably, the bottom end of the fixing frame is connected to a second sliding bearing, and the second sliding bearing cooperates with the arc-shaped opening.

[0011] Preferably, the first sliding bearing and the second sliding bearing are both high molecular polyethylene plastic sliding bearings.

[0012] Preferably, the fixing mechanism includes a mounting plate, which is rotatably connected to the connecting shaft, a second fixing ring is inserted into the bottom end of the mounting plate, the main beam passes through the gap between the second fixing ring and the mounting plate, and a fixing nut is connected to the upper end of the second fixing ring.

[0013] Preferably, the center of the arc-shaped opening and the center of the arc edge are the same center.

[0014] Preferably, the center of the arc-shaped opening is cocentric with the center of the arc edge and is on the same straight line as the axis of the connecting shaft.

[0015] The photovoltaic tracking bracket system proposed by the present invention has the following beneficial effects:

[0016] The arc edge is in sliding contact with the first sliding bearing, and the arc mouth is in sliding contact with the second sliding bearing. The arc mouth and the arc edge are set concentrically, so that the rotation center line and the center of gravity line coincide. The required driving torque is small, and low-torque, high-stability photovoltaic panel rotation control is achieved. At the same time, the wind resistance is improved after the structure is optimized, and the wind resistance performance is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a photovoltaic tracking bracket system proposed by the present invention Figure 1 ;

[0018] Figure 2 A schematic diagram of the structure of a photovoltaic tracking bracket system proposed by the present invention Figure 2 ;

[0019] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at point A above;

[0020] Figure 4 This is a schematic structural diagram of the connection between the first supporting leg and the driving mechanism in a photovoltaic tracking bracket system proposed by the present invention;

[0021] Figure 5 This is a schematic structural diagram of the connection between a fixed seat and a first sliding bearing in a photovoltaic tracking bracket system proposed by the present invention;

[0022] Figure 6 This is a schematic structural diagram of the connection between the fixing frame and the connecting shaft in a photovoltaic tracking bracket system proposed by the present invention;

[0023] Figure 7 This is a structural diagram of the connection between a fixing mechanism and a connecting shaft in a photovoltaic tracking bracket system proposed by the present invention.

[0024] In the figure: 1. First supporting leg; 2. Second supporting leg; 3. Driving mechanism; 4. Main beam; 5. Supporting mechanism; 6. Photovoltaic panel; 7. Fixing seat; 8. First sliding bearing; 9. Fixing frame; 10. Connecting shaft; 11. Fixing mechanism; 12. Second sliding bearing; 13. Arc-shaped opening; 14. Arc edge; 31. Reducer; 32. Adapter flange; 51. First fixing ring; 52. Bracket; 53. Support plate; 54. Screw fixing piece; 111. Mounting plate; 112. Second fixing ring; 113. Fixing nut. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1: Reference Figure 1-2 and Figure 4-7 A photovoltaic tracking bracket system includes a first supporting leg 1 and a second supporting leg 2. The upper end of the first supporting leg 1 is fixedly connected to a driving mechanism 3. The output end of the driving mechanism 3 is connected to a main beam 4. A plurality of supporting mechanisms 5 are connected to the main beam 4 at equal intervals along the length direction. The upper end of each supporting mechanism 5 is connected to a photovoltaic panel 6. The upper end of the second supporting leg 2 is fixedly connected to a fixing seat 7. The upper end of the fixing seat 7 is fixedly connected to a fixing frame 9. The fixing frame 9 is rotatably connected to a connecting shaft 10. The connecting shaft 10 is connected to the main beam 4 through a fixing mechanism 11. The upper end of the main beam 4 is provided with a There is an arc-shaped opening 13, an arc edge 14 is provided at the bottom end of the main beam 4, a first sliding bearing 8 is connected to the fixed seat 7, the first sliding bearing 8 cooperates with the arc edge 14, and a second sliding bearing 12 is connected to the bottom end of the fixed frame 9. The first sliding bearing 8 and the second sliding bearing 12 are both high-molecular polyethylene plastic sliding bearings. The second sliding bearing 12 cooperates with the arc-shaped opening 13, and the center of the arc-shaped opening 13 is the same as the center of the arc edge 14. The center of the arc-shaped opening 13 is concentric with the center of the arc edge 14 and is on the same straight line as the axis line of the connecting shaft 10;

[0027] Reference Figure 4 The driving mechanism 3 includes a reducer 31, which is fixedly connected to the upper end of the first supporting leg 1. The output end of the reducer 31 is fixedly connected to a switching flange 32, which is connected to the main beam 4.

[0028] Working principle:

[0029] After the reducer 31 is started, it drives the adapter flange 32 to rotate, and the adapter flange 32 drives the main beam 4 to rotate. The main beam 4 drives the photovoltaic panel 6 to rotate through the support mechanism 5. The tilt angle of the photovoltaic panel 6 is adjusted according to the angle of sunlight, thereby improving the utilization rate of solar energy by the photovoltaic panel 6;

[0030] The second supporting foot 2 supports and fixes the fixing seat 7, and the fixing seat 7 fixes the fixing frame 9. The fixing frame 9 is connected to the connecting shaft 10, and the connecting shaft 10 is connected to the main beam 4 through the fixing mechanism 11. When the adapter flange 32 drives the main beam 4 to rotate, it also drives the fixing mechanism 11 to rotate synchronously. The fixing mechanism 11 rotates around the connecting shaft 10. At the same time, the arc edge 14 is in sliding contact with the first sliding bearing 8, and the arc mouth 13 is in sliding contact with the second sliding bearing 12. The arc mouth 13 and the arc edge 14 are concentrically arranged, so that the rotation center line and the center of gravity line coincide. The required driving torque is small, and low-torque, high-stability photovoltaic panel rotation control is achieved. At the same time, the wind resistance is improved after the structure is optimized, and the wind resistance performance is strong.

[0031] Example 2: When installing the photovoltaic panel 6, it is not convenient to quickly install and fix the photovoltaic panel 6. Figure 3As another preferred embodiment of the present invention, the difference from Example 1 is that the support mechanism 5 includes a first fixing ring 51, the upper end of the first fixing ring 51 is fixedly connected to a bracket 52, the main beam 4 passes through the gap between the first fixing ring 51 and the bracket 52, and both sides of the upper end of the first fixing ring 51 are fixedly connected to support plates 53, the bracket 52 and the support plate 53 are an integrated structure, and both sides of the upper end of the support plate 53 are connected to the photovoltaic panel 6 through screw fixings 54. The first fixing ring 51 is fixed to the main beam 4 after matching with the bracket 52, the bracket 52 fixes the support plate 53, and the support plate 53 fixes the photovoltaic panel 6 through the screw fixings 54, so that the photovoltaic panel 6 can be quickly installed and fixed.

[0032] Example 3: In the process of driving the main beam 4 to rotate, the arc edge 14 is easily separated from the first sliding bearing 8, refer to Figure 7 As another preferred embodiment of the present invention, the difference from Example 1 is that the fixing mechanism 11 includes a mounting plate 111, which is rotatably connected to the connecting shaft 10, and a second fixing ring 112 is inserted at the bottom end of the mounting plate 111. The main beam 4 passes through the gap between the second fixing ring 112 and the mounting plate 111. The upper end of the second fixing ring 112 is connected with a fixing nut 113, which fixes the second fixing ring 112. After the second fixing ring 112 cooperates with the mounting plate 111, it is connected to the main beam 4, limiting the main beam 4 so that the arc edge 14 is in sliding contact with the first sliding bearing 8 during the rotation of the main beam 4.

[0033] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A photovoltaic tracking bracket system, comprising a first support leg (1) and a second support leg (2), characterized in that: in: The upper end of the first supporting leg (1) is fixedly connected to a driving mechanism (3), the output end of the driving mechanism (3) is connected to a main beam (4), and a plurality of supporting mechanisms (5) are connected to the main beam (4) at equal intervals along the length direction. The upper end of the second supporting leg (2) is fixedly connected to a fixing seat (7), the upper end of the fixing seat (7) is fixedly connected to a fixing frame (9), and a connecting shaft (10) is rotatably connected to the fixing frame (9). The connecting shaft (10) is connected to the main beam (4) through a fixing mechanism (11), the upper end of the main beam (4) is provided with an arc opening (13), the bottom end of the main beam (4) is provided with an arc edge (14), the fixing seat (7) is connected to a first sliding bearing (8), and the first sliding bearing (8) cooperates with the arc edge (14).

2. The photovoltaic tracking bracket system according to claim 1, characterized in that: The driving mechanism (3) comprises a reducer (31), the reducer (31) being fixedly connected to the upper end of the first supporting leg (1), the output end of the reducer (31) being fixedly connected to a transfer flange (32), and the transfer flange (32) being connected to the main beam (4).

3. The photovoltaic tracking bracket system according to claim 1, characterized in that: The support mechanism (5) comprises a first fixing ring (51), the upper end of the first fixing ring (51) is fixedly connected to a bracket (52), the main beam (4) passes through a gap between the first fixing ring (51) and the bracket (52), both sides of the upper end of the first fixing ring (51) are fixedly connected to support plates (53), and both sides of the upper end of the support plate (53) are connected to the photovoltaic panel (6) via screw fixing members (54).

4. The photovoltaic tracking bracket system according to claim 3, characterized in that: The bracket (52) and the support plate (53) are an integrated structure.

5. The photovoltaic tracking bracket system according to claim 1, characterized in that: The bottom end of the fixing frame (9) is connected to a second sliding bearing (12), and the second sliding bearing (12) is matched with the arc-shaped opening (13).

6. The photovoltaic tracking bracket system according to claim 5, characterized in that: The first sliding bearing (8) and the second sliding bearing (12) are both high molecular polyethylene plastic sliding bearings.

7. The photovoltaic tracking bracket system according to claim 1, characterized in that: The fixing mechanism (11) includes a mounting plate (111), the mounting plate (111) is rotatably connected to the connecting shaft (10), a second fixing ring (112) is inserted into the bottom end of the mounting plate (111), the main beam (4) passes through the gap between the second fixing ring (112) and the mounting plate (111), and the upper end of each second fixing ring (112) is connected to a fixing nut (113).

8. The photovoltaic tracking bracket system according to claim 1, characterized in that: The center of the arc-shaped opening (13) and the center of the arc edge (14) are the same center.

9. The photovoltaic tracking bracket system according to claim 8, characterized in that: The center of the arc-shaped opening (13) is cocentric with the center of the arc edge (14) and is on the same straight line as the axis of the connecting shaft (10).

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