Automatic calibrator for installation angle of photovoltaic module

Abstract

The invention relates to the technical field of photovoltaic installation equipment, in particular to a photovoltaic module installation angle automatic calibrator which comprises a base and two lifting arms arranged on the base. A driving assembly for driving the lifting arms to move up and down is arranged in the base, an outer shaft is rotationally connected between the two lifting arms, and peripheral angle frames are fixedly mounted at the two ends of the outer shaft; according to the invention, by adopting the collaborative design of the peripheral angle frame and the inclination angle frame, two-dimensional adjustment of the peripheral direction and the inclination angle of the photovoltaic panel can be carried out, and it is ensured that the photovoltaic array can be always kept at the optimal light receiving angle, so that the power generation benefit is maximized; and secondly, by adopting the height-adjustable lifting arm, not only is the adaptability of the equipment to different terrains enhanced, but also the height of the photovoltaic panel can be reduced to the minimum through the driving assembly in severe weather such as strong wind, the wind area is effectively reduced, and the equipment is prevented from being damaged due to strong wind impact.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic installation equipment technology, and in particular to an automatic calibrator for the installation angle of photovoltaic modules. Background Technology

[0002] With the increasing global demand for clean energy, photovoltaic (PV) power generation technology has developed rapidly and been widely applied. The power generation efficiency of a PV power plant directly depends on the effectiveness of the PV modules in receiving sunlight. Therefore, ensuring that the PV panels are always at the optimal angle for receiving sunlight is key to improving power generation efficiency.

[0003] Currently, to address the low solar energy utilization rate of fixed-mount photovoltaic (PV) tracking systems, some systems with calibration functions have emerged in the industry. These systems typically use sensors to detect the sun's position and drive motors to adjust the angle of the PV panels to track the sun. However, most of these existing calibration systems have relatively simple structures and are mostly single-axis adjustments, meaning they can only achieve tracking in a single dimension, either horizontally or vertically. This results in limited calibration accuracy and an inability to optimize the system in accordance with real-time changes in the sun's altitude and azimuth angles. Consequently, it is difficult to ensure that the PV panels remain truly perpendicular to the sunlight throughout the day, thus creating a bottleneck in improving power generation efficiency.

[0004] Therefore, in order to further improve the convenience and versatility of adjusting the angle of existing photovoltaic installations, we propose an automatic photovoltaic module installation angle calibrator. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as their relatively simple structure and single-axis adjustment, which can only achieve single-dimensional tracking in the horizontal or vertical direction. Therefore, this invention proposes an automatic photovoltaic module installation angle calibrator.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: Design an automatic photovoltaic module installation angle calibrator, including: The base and two lifting arms mounted on the base; The base is provided with a drive assembly that drives the lifting arm to move up and down. An outer shaft is rotatably connected between the two lifting arms, and a corner bracket is fixedly installed at both ends of the outer shaft. An inclined frame is rotatably connected to the outer side of the perimeter frame, and a power assembly for driving the outer shaft to rotate is provided on the side of the lifting arm.

[0007] Furthermore, the base includes; A base frame for connecting to the ground has two sleeves fixedly installed above it. The lifting arm is movably inserted into the sleeves. A motor is fixedly installed inside the sleeves, and a lead screw that is threadedly connected to the lifting arm is fixedly installed on the shaft end of the motor.

[0008] Furthermore, the outer shaft is rotatably connected to an inner shaft; Both ends of the inner shaft extend to both ends of the outer shaft and are fixedly mounted with a first bevel gear. A second bevel gear is fixedly mounted on the shaft of the tilting frame. The first bevel gear and the second bevel gear mesh and drive each other.

[0009] Furthermore, an inclinometer motor is fixedly installed inside one of the perimeter brackets, and the shaft end of the inclinometer motor is fixedly connected to the second bevel gear.

[0010] Furthermore, the power assembly includes a circumferential motor fixedly installed on the upper end of the lifting arm, a third bevel gear fixedly installed on the shaft end of the circumferential motor, and a fourth bevel gear provided on the outer side of the outer shaft, wherein the third bevel gear and the fourth bevel gear mesh and transmit power.

[0011] Furthermore, the fourth bevel gear and the outer shaft are slidably connected, an adjusting nut is threaded onto the outer side of the outer shaft, and a compression spring is provided between the fourth bevel gear and the adjusting nut.

[0012] Furthermore, an inner groove and a through groove are provided on the outer side of the outer shaft, and the inner groove and the through groove are connected in sequence. The fourth bevel gear has a pin sleeve fixedly installed inside, and a conductive post is movably connected inside the pin sleeve by a spring. The side wall of the through groove is provided with a conductive sheet that contacts the conductive post and conducts electricity.

[0013] Furthermore, the outer side of the inner shaft has an annular groove, a rubber sleeve is fitted on the outer side of the annular groove, an airbag is fitted on the bottom of the lifting arm, an air pipe is connected to the outer side of the airbag, and an air passage is opened inside the inner shaft to connect to the annular groove, and the air pipe and the air passage are connected.

[0014] Furthermore, the rubber sleeve and the conductive post are arranged opposite to each other, and two sets of the inner groove and the through groove are configured.

[0015] Furthermore, a light sensor is also provided on the end face of the tilting frame.

[0016] The photovoltaic module installation angle automatic calibrator proposed in this invention has the following advantages: First, by adopting a synergistic design of a circumferential angle bracket and a tilt angle bracket, this invention can perform two-dimensional adjustment of the photovoltaic panel in both circumferential direction and tilt angle, ensuring that the photovoltaic array can always maintain the optimal light-receiving angle, thereby maximizing power generation efficiency. Second, by adopting an adjustable-height lifting arm, it not only enhances the adaptability of the equipment to different terrains, but also, in severe weather conditions such as strong winds, can lower the height of the photovoltaic panel to the minimum through the drive component, effectively reducing the wind-exposed area and preventing the equipment from being damaged by strong winds, significantly improving the operational safety of the photovoltaic power station and the service life of the equipment. Attached Figure Description

[0017] Figure 1 The three-dimensional representation of the present invention Figure 1 ; Figure 2 The three-dimensional representation of the present invention Figure 2 ; Figure 3 for Figure 2 A magnified structural diagram of area A; Figure 4 This is a schematic cross-sectional view of the base structure of the present invention; Figure 5 for Figure 4 A schematic diagram of the enlarged structure of region B; Figure 6 for Figure 5 An enlarged structural diagram of region C.

[0018] In the diagram: 1. Base; 11. Base frame; 12. Sleeve; 13. Motor; 14. Lead screw; 2. Lifting arm; 3. Drive assembly; 4. Outer shaft; 41. Inner groove; 42. Through groove; 5. Peripheral frame; 51. Inclined motor; 6. Inclined frame; 61. Second bevel gear; 7. Power assembly; 71. Peripheral motor; 72. Third bevel gear; 73. Fourth bevel gear; 731. Pin sleeve; 732. Spring; 733. Conductive post; 734. Conductive sheet; 74. Adjusting nut; 75. Compression spring; 8. Inner shaft; 80. First bevel gear; 81. Rubber sleeve; 82. Airbag; 83. Air tube; 84. Airway; 9. Light sensor. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figure 1-6 As an embodiment of the present invention, an automatic calibrator for photovoltaic module installation angle is disclosed. Specifically, the calibrator includes a base 1 and two lifting arms 2 disposed on the base 1. The base 1 is provided with a drive assembly 3 that drives the lifting arm 2 to move up and down. An outer shaft 4 is rotatably connected between the two lifting arms 2. Both ends of the outer shaft 4 are fixedly installed with a corner bracket 5. An inclined frame 6 is rotatably connected to the outer side of the perimeter frame 5, and a power assembly 7 that drives the outer shaft 4 to rotate is provided on the side of the lifting arm 2.

[0021] In other words, by employing a synergistic design of the circumferential frame 5 and the tilting frame 6, this invention enables two-dimensional adjustment of the photovoltaic panels in both the circumferential direction and the tilt angle, ensuring that the photovoltaic array always maintains the optimal angle of light reception, thereby maximizing power generation efficiency. Secondly, by adopting an adjustable-height lifting arm 2, not only is the adaptability of the equipment to different terrains enhanced, but also, in severe weather conditions such as strong winds, the height of the photovoltaic panels can be reduced to the minimum through the drive component 3, effectively reducing the wind-exposed area and preventing damage to the equipment due to strong wind impacts, significantly improving the operational safety of the photovoltaic power station and the service life of the equipment.

[0022] In some embodiments, the base 1 of the present invention includes; The base frame 11 is used for connection to the ground. Two sleeves 12 are fixedly installed above the base frame 11. The lifting arm 2 is movably inserted into the sleeve 12. A motor 13 is fixedly installed inside the sleeve 12. A lead screw 14 that is threadedly connected to the lifting arm 2 is fixedly installed on the shaft end of the motor 13.

[0023] In actual operation, when the motor 13 starts and drives the lead screw 14 to rotate, the lifting arm 2 cannot rotate along with it because it is restricted by the sleeve 12. It can only rise or fall in a straight line along the thread of the lead screw 14, thereby achieving precise height adjustment of the lifting arm 2.

[0024] Based on the above embodiments, the outer shaft 4 in this embodiment is internally rotatably connected to the inner shaft 8; Both ends of the inner shaft 8 extend to both ends of the outer shaft 4 and are fixedly mounted with a first bevel gear 80. A second bevel gear 61 is fixedly mounted on the shaft of the tilting frame 6. The first bevel gear 80 and the second bevel gear 61 mesh and drive each other.

[0025] When it is necessary to adjust the tilt angle of the photovoltaic panel, simply drive the inner shaft 8 to rotate. The rotation of the inner shaft 8 will drive the first bevel gears 80 at both ends to rotate synchronously, and then transmit the power to the second bevel gear 61 through the meshing transmission of the bevel gears. In this way, the tilting bracket 6 will rotate accordingly, thereby realizing the convenient adjustment of the tilt angle of the photovoltaic panel.

[0026] Obviously, in order to achieve automatic rotation control of the tilt angle, in one of the corner brackets 5 of the present invention, a tilt motor 51 is fixedly installed inside. The shaft end of the tilt motor 51 is fixedly connected to the second bevel gear 61. That is, by adopting the design of the tilt motor 51, it is used to drive the second bevel gear 61 to rotate, thereby realizing the tilt angle adjustment of the tilt bracket 6. At the same time, it cooperates with the inner shaft 8 to drive the synchronous adjustment of the tilt brackets 6 on both sides.

[0027] In some embodiments, the power assembly 7 of the present invention includes a circumferential motor 71 fixedly installed on the upper end of the lifting arm 2, a third bevel gear 72 fixedly installed on the shaft end of the circumferential motor 71, and a fourth bevel gear 73 provided on the outer side of the outer shaft 4, wherein the third bevel gear 72 and the fourth bevel gear 73 mesh and transmit power.

[0028] Specifically, in this invention, when it is necessary to adjust the circumferential position of the photovoltaic panel, the circumferential angle motor 71 is activated to drive the third bevel gear 72 to rotate. Through the meshing transmission between the third bevel gear 72 and the fourth bevel gear 73, the power is transmitted to the outer shaft 4, driving it to rotate between the two lifting arms 2. This achieves the circumferential angle adjustment of the entire photovoltaic panel.

[0029] It should be noted that in this embodiment of the invention, the fourth bevel gear 73 and the outer shaft 4 are slidably connected, an adjusting nut 74 is threadedly connected to the outer side of the outer shaft 4, and a compression spring 75 is provided between the fourth bevel gear 73 and the adjusting nut 74.

[0030] In the normal working state of this invention, the fourth bevel gear 73 always maintains stable meshing with the third bevel gear 72 under the preload of the compression spring 75. When encountering strong winds, the wind force directly acts on the photovoltaic panel, generating a torque that forces the outer shaft 4 to rotate. When the torque generated by the wind exceeds the preload of the compression spring 75, the fourth bevel gear 73 will disengage from the third bevel gear 72. At this time, the outer shaft 4 loses the locking restraint of the circumferential motor 71 and can rotate freely under the action of the wind. In this way, the photovoltaic panel acts like a weather vane and can automatically turn, thereby greatly reducing the wind-receiving area and effectively avoiding structural damage caused by excessive wind force, thus achieving passive self-protection.

[0031] Based on the above embodiments, in this embodiment of the invention, an inner groove 41 and a through groove 42 are provided on the outer side of the outer shaft 4, and the inner groove 41 and the through groove 42 are connected in sequence. The fourth bevel gear 73 has a pin sleeve 731 fixedly installed inside. The pin sleeve 731 is movably connected to a conductive post 733 by a spring 732. The side wall of the through groove 42 is provided with a conductive sheet 734 that contacts and conducts electricity with the conductive post 733.

[0032] It should be noted that the conductive post 733 and the motor 13 described above are electrically connected. In the initial state, the conductive post 733 slides in the inner groove 41. At this time, it achieves the purpose of circumferential rotation locking by cooperating with the inner groove 41. When it slides into the through groove 42, the conductive post 733 and the conductive sheet 734 come into contact to form an electrical connection and conduction. As described above, when the wind force is too strong, the fourth bevel gear 73 will move backward under excessive force. At this time, with the help of the tooth contact gap between the fourth bevel gear 73 and the third bevel gear 72, the backward movement of the fourth bevel gear 73 will drive the pin sleeve 731 to move backward until the conductive post 733 slides into the inside of the through groove 42. At this time, the conductive post 733 and the conductive sheet 734 on the inner wall of the through groove 43 come into contact, thus completing the electrical connection. Because the present invention uses a design that electrically connects the motor 13 to the conductive post 733, and the conductive sheet 734 is used to connect to an external power source, the motor 13 can be started when the two come into contact, so as to drive the two lifting arms 2 to start moving downward to reduce the height of the photovoltaic panel. In this way, when the wind turbine is passively protected, the active height reduction protection function can be further added, which further improves the applicability of the device.

[0033] Based on the above embodiments, in this embodiment of the invention, the outer side of the inner shaft 8 has an annular groove, a rubber sleeve 81 is fitted on the outer side of the annular groove, an airbag 82 is fitted on the bottom of the lifting arm 2, an air pipe 83 is connected to the outer side of the airbag 82, and an air passage 84 is opened inside the inner shaft 8 to connect to the annular groove, and the air pipe 83 and the air passage 84 are connected.

[0034] Specifically, in this embodiment, when the lifting arm 2 moves downward for protection, when the airbag 82 touches the sleeve 12, the airbag 82 contracts, and the high-pressure gas enters between the rubber sleeve 81 and the annular groove along the air passage 84. At this time, the rubber sleeve 81 begins to expand. When the rubber sleeve 81 expands, it can touch the conductive post 733 outward, causing it to retract and move into the inside of the pin sleeve 731. When the conductive post 733 moves upward, under the push of the compression spring 75, the entire fourth bevel gear 73 begins to reset and move. At this time, the conductive post 733 moves into the inner retraction groove 41, forming a power cut-off. That is, at this descending position, the motor 13 can be automatically shut off, thus realizing the automatic control of the lifting arm 2.

[0035] It should be noted that, in this embodiment of the invention, the rubber sleeve 81 and the conductive post 733 are arranged opposite to each other, and two sets of the inner groove 41 and the through groove 42 are configured.

[0036] Of course, to detect the angle of illumination, a light sensor 9 is also provided on the end face of the tilting frame 6 in this invention. The control system determines whether the photovoltaic panel is facing the sun based on the signal fed back by the light sensor 9. If there is a deviation, the control system will automatically start the power component 7 and the motor driving the inner shaft 8 to adjust the circumferential angle and tilt angle of the photovoltaic panel respectively until the light intensity detected by the light sensor 9 reaches the maximum value, that is, the photovoltaic panel is perpendicular to the sunlight. This ensures that the photovoltaic module always receives sunlight at the optimal angle, thereby maximizing the power generation efficiency.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A photovoltaic module installation angle automatic calibrator, characterized in that, include: The base (1) and two lifting arms (2) mounted on the base (1); The base (1) is provided with a drive assembly (3) that drives the lifting arm (2) to move up and down. An outer shaft (4) is rotatably connected between the two lifting arms (2). Both ends of the outer shaft (4) are fixedly installed with a corner bracket (5). The outer side of the perimeter bracket (5) is rotatably connected to the tilt bracket (6), and the side of the lifting arm (2) is provided with a power assembly (7) that drives the outer shaft (4) to rotate.

2. The photovoltaic module installation angle automatic calibrator according to claim 1, characterized in that: The base (1) includes; The base frame (11) is used to connect to the ground. Two sleeves (12) are fixedly installed above the base frame (11). The lifting arm (2) is movably inserted into the sleeve (12). A motor (13) is fixedly installed inside the sleeve (12). A screw (14) that is threadedly connected to the lifting arm (2) is fixedly installed on the shaft end of the motor (13).

3. The photovoltaic module installation angle automatic calibrator according to claim 1, characterized in that: The outer shaft (4) is rotatably connected to the inner shaft (8); Both ends of the inner shaft (8) extend to both ends of the outer shaft (4) and are fixedly mounted with a first bevel gear (80). A second bevel gear (61) is fixedly mounted on the shaft of the tilting frame (6). The first bevel gear (80) and the second bevel gear (61) mesh and drive each other.

4. The photovoltaic module installation angle automatic calibrator according to claim 3, characterized in that: One of the circumferential brackets (5) has an inclinometer motor (51) fixedly installed inside, and the shaft end of the inclinometer motor (51) is fixedly connected to the second bevel gear (61).

5. The photovoltaic module installation angle automatic calibrator according to claim 3, characterized in that: The power assembly (7) includes a circumferential motor (71) fixedly installed on the upper end of the lifting arm (2). A third bevel gear (72) is fixedly installed on the shaft end of the circumferential motor (71). A fourth bevel gear (73) is provided on the outer side of the outer shaft (4). The third bevel gear (72) and the fourth bevel gear (73) mesh and drive each other.

6. The photovoltaic module installation angle automatic calibrator according to claim 5, characterized in that: The fourth bevel gear (73) and the outer shaft (4) are slidably connected. An adjusting nut (74) is threadedly connected to the outer side of the outer shaft (4). A compression spring (75) is provided between the fourth bevel gear (73) and the adjusting nut (74).

7. The photovoltaic module installation angle automatic calibrator according to claim 6, characterized in that: The outer shaft (4) has an inner groove (41) and a through groove (42) on its outer side, and the inner groove (41) and the through groove (42) are connected in sequence. The fourth bevel gear (73) has a pin sleeve (731) fixedly installed inside. The pin sleeve (731) is movably connected to a conductive post (733) by a spring (732). The side wall of the through groove (42) is provided with a conductive sheet (734) that contacts and conducts electricity with the conductive post (733).

8. The automatic photovoltaic module installation angle calibrator according to claim 7, characterized in that: The inner shaft (8) has an annular groove on its outer side. A rubber sleeve (81) is fitted on the outer side of the annular groove. An airbag (82) is fitted on the bottom of the lifting arm (2). An air tube (83) is connected to the outer side of the airbag (82). An air passage (84) is opened inside the inner shaft (8) and connects to the annular groove. The air tube (83) and the air passage (84) are connected.

9. The automatic photovoltaic module installation angle calibrator according to claim 8, characterized in that: The rubber sleeve (81) and the conductive post (733) are arranged opposite to each other, and two sets of the inner groove (41) and the through groove (42) are provided.

10. An automatic photovoltaic module installation angle calibrator according to any one of claims 1-9, characterized in that: A light sensor (9) is also provided on the end face of the tilting frame (6).

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