Rotating device of photovoltaic power generation panel and photovoltaic power generation system

Abstract

The invention provides a rotating device of a photovoltaic power generation panel and a photovoltaic power generation system. The rotating device is used for solving the problem that the photovoltaic power generation panel cannot directly face the sun all the time in the prior art. Comprising a mounting base, a first rotating module, a second rotating module and a third rotating module; on one hand, the inclination angle of the photovoltaic power generation panel relative to the mounting base in the length direction is adjusted through the first angle adjusting mechanism, so that the photovoltaic power generation panel can always face the sun in the daytime; and on the other hand, the first rotating module drives the photovoltaic power generation panel to rotate relative to the mounting base, and the third rotating module adjusts the inclination angle of the width direction of the photovoltaic power generation panel relative to the mounting base, so that the photovoltaic power generation panel adapts to direct solar radiation points in different seasons, and it is ensured that the efficiency of the photovoltaic power generation system can be maximized.

Description

Technical Field

[0001] The invention belongs to the field of photovoltaic power generation, and in particular relates to a rotating device of a photovoltaic power generation panel and a photovoltaic power generation system. Background Art

[0002] As energy shortages and environmental pollution problems worsen worldwide, the development and utilization of renewable energy becomes increasingly important. Photovoltaic power generation, as an important branch of renewable energy, is showing an extremely broad development prospect. Future photovoltaic power generation technology will be committed to achieving higher efficiency, better economy and stronger environmental performance. At the same time, thanks to the continuous innovation of technology and the promotion of large-scale application, the cost of photovoltaic power generation is expected to be further reduced, thus becoming a more competitive energy supply option in the market.

[0003] The cornerstone of photovoltaic power generation is the photovoltaic effect, which is the phenomenon that light causes a potential difference inside an uneven semiconductor or solid. In this process, photovoltaic panels play a vital role. They can efficiently convert the sun's radiation energy into electrical energy, store it in batteries for later use, or directly drive various load devices. However, due to the rotation of the earth and the apparent motion of the sun, the position of the sun and the direction of light are always changing. For fixed photovoltaic power generation systems, how to ensure that the photovoltaic panels can always be accurately aimed at the sun has become the key to improving the efficiency of the system.

[0004] In the prior art, although a device has been developed that can adjust the tilt angle of the photovoltaic panels in the length direction to adapt to the changes in the angle of the sun at different times of the day, this solution still has obvious limitations. Because with the change of seasons, the direct point of the sun will also change significantly. For example, in spring and autumn, the direct point of the sun is roughly near the equator; in summer, the direct point will move north to near the Tropic of Cancer; in winter, it will move south to near the Tropic of Capricorn. Therefore, if you only rely on adjusting the tilt angle of the photovoltaic panels in the length direction, it is obviously impossible to ensure that the photovoltaic panels can always be accurately aligned with the sun, resulting in the efficiency of the photovoltaic power generation system not being able to reach the optimal state. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a rotating device for a photovoltaic panel and a photovoltaic power generation system, which are used to solve the problem in the prior art that the photovoltaic panel cannot always face the sun, resulting in the photovoltaic power generation system efficiency not being able to reach the optimal state.

[0006] To achieve the above-mentioned purpose and other related purposes, the present invention provides a rotation device for a photovoltaic power generation panel, which includes: a mounting seat, a first rotation module, a second rotation module and a third rotation module; the first rotation module is arranged on the mounting seat, and the second rotation module is arranged on the first rotation module; the second rotation module is used to adjust the inclination angle of the photovoltaic power generation panel in the length direction; the third rotation module is arranged on the second rotation module, and the photovoltaic power generation panel is arranged on the third rotation module; the third rotation module is used to adjust the inclination angle of the photovoltaic power generation panel in the width direction; the first rotation module is used to drive the second rotation module, the third rotation module and the photovoltaic power generation panel to rotate relative to the mounting seat.

[0007] Optionally, the first rotation module includes a mounting disk, a first driving mechanism, a first mounting member and a plurality of mounting columns; one end of the plurality of mounting columns is connected to the mounting seat, and the other end is connected to the mounting disk; the angle adjustment module is installed on the first mounting member, and the first mounting member is rotatably connected to the mounting disk; the first driving mechanism is arranged on the mounting disk, for driving the first mounting member to rotate relative to the mounting disk.

[0008] Optionally, the first driving mechanism includes a driving motor, a first gear, a second gear and a guide assembly; the driving motor is arranged on the mounting disk, the first gear is connected to the driving motor, the second gear is arranged on the first mounting member, and the first gear and the second gear are transmission connected; the guide assembly is arranged between the mounting disk and the first mounting member, and is connected to the mounting disk and the first mounting member; the driving motor drives the first rotating member and the second gear to rotate, thereby driving the first mounting member to rotate.

[0009] Optionally, the first driving mechanism also includes a first pulley, a second pulley, a first rotating shaft and a belt; the first pulley is connected to the first, the first rotating shaft is rotatably connected to the mounting plate, one end of the first rotating shaft is connected to the second pulley, and the other end is connected to the first gear; the belt is sleeved on the first pulley and the second pulley.

[0010] Optionally, the guide assembly includes a first guide rail and a second guide rail; the first guide rail is arranged on the first mounting member, and a first guide protrusion and a second guide protrusion are arranged on the first guide rail, and a first guide gap is formed between the first guide protrusion and the second guide protrusion; the second guide rail is arranged on the mounting plate, and a third guide protrusion and a fourth guide protrusion are arranged on the second guide rail, and a second guide gap is formed between the third guide protrusion and the fourth guide protrusion; the first guide gap is used to accommodate the third guide protrusion, and the second guide gap is used to accommodate the second guide protrusion.

[0011] Optionally, the second rotating module includes an electric cylinder, at least two supporting columns, at least two first rotating mounting members, at least two second rotating mounting members, a connecting column and a second mounting member; the supporting column and the first rotating mounting member are arranged on the first mounting member at intervals, one end of the supporting column is fixedly connected to the first mounting member, and the other end is rotatably connected to the second mounting member; the first rotating mounting member and the second rotating mounting member are arranged in a one-to-one correspondence, one end of the first rotating mounting member is rotatably connected to the first mounting member, and the other end is rotatably connected to the second rotating mounting member, and an end of the second rotating mounting member away from the first rotating mounting member is rotatably connected to the second mounting member; one end of the connecting column is connected to a connecting end of one of the second rotating mounting members and the first rotating mounting member, and the other end is connected to a connecting end of another second rotating mounting member and the first rotating mounting member; the electric cylinder is arranged on the first mounting member, and the driving member is connected to the connecting column, which is used to drive the connecting column to move, and then drive the first rotating mounting member and the second rotating mounting member to rotate.

[0012] Optionally, the third rotation module includes a second driving mechanism, a driving connecting rod, at least two sliding connection seats and at least four sliding connecting rods; the second driving mechanism and the sliding connection seat are arranged on the second mounting member; one end of the driving connecting rod is rotatably connected to the second driving mechanism, and the other end is rotatably connected to the photovoltaic panel; each sliding connection seat is provided with two sliding grooves, and the extension direction of each sliding groove and the angle formed by the width direction of the second mounting member are acute angles; the two sliding grooves arranged on the same sliding connection seat are symmetrically installed on the sliding mounting seat with the mid-perpendicular line of the second mounting member as the center line; the sliding connecting rod and the sliding groove are arranged in a one-to-one correspondence; one end of the sliding connecting rod is connected to the photovoltaic panel, and the other end is slidably connected to the sliding groove; the second driving mechanism drives the driving connecting rod to move, thereby driving the sliding connecting rod arranged on the photovoltaic panel to slide in the sliding groove to adjust the inclination angle in the width direction of the photovoltaic panel.

[0013] Optionally, the second driving mechanism includes a screw motor, a screw, a screw nut, a guide rail and an adapter; the screw motor and the guide rail are arranged on the second mounting member; the adapter is slidably arranged on the guide rail; one end of the screw is connected to the screw motor; the screw is connected to the adapter through the screw nut; and a driving connecting rod is connected to each end of the adapter.

[0014] Optionally, the second driving mechanism further includes two limit blocks for limiting the movement of the adapter, and a limit block is respectively provided at both ends of the guide rail.

[0015] On the other hand, the present invention further provides a photovoltaic power generation system, comprising a rotating device for a photovoltaic power generation panel as described above and a photovoltaic power generation panel; the photovoltaic power generation panel is installed on the rotating device.

[0016] As described above, a photovoltaic panel rotation device and a photovoltaic power generation system of the present invention have at least the following beneficial effects: on the one hand, the second rotation module is used to adjust the inclination angle of the photovoltaic panel relative to the mounting seat in the length direction to ensure that the photovoltaic panel can always face the sun during the day; on the other hand, the first rotation module is used to drive the photovoltaic panel to rotate relative to the mounting seat and the third rotation module is used to adjust the inclination angle of the photovoltaic panel relative to the mounting seat in the width direction, so that the photovoltaic panel can adapt to the direct sunlight points in different seasons, ensuring that the efficiency of the photovoltaic power generation system can be maximized. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic structural diagram of a photovoltaic power generation system according to an embodiment of the present invention at an angle.

[0018] Figure 2 Shown is a schematic structural diagram of a third rotating module of a photovoltaic power generation system of the present invention.

[0019] Figure 3 Shown is a schematic structural diagram of a first guide rail, a second guide rail, a mounting plate and a drive motor of a photovoltaic power generation system of the present invention.

[0020] Figure 4 Shown is a schematic diagram of the structure of a first guide rail, a second guide rail and a mounting plate of a mounting bracket for a photovoltaic panel of the present invention.

[0021] Component number description:

[0022] 1. Mounting seat;

[0023] 2. first rotating module, 21. mounting plate, 22. driving motor, 23. first gear, 24. second gear, 25. guide assembly, 251. first guide rail, 2511. first guide protrusion, 2512. second guide protrusion, 2513. first guide gap, 252. second guide rail, 2521. third guide protrusion, 2522. fourth guide protrusion, 2523. second guide gap, 26. second pulley, 27. first rotating shaft, 28. belt, 29. first mounting member, 30. mounting column;

[0024] 3. second rotating module, 31. electric cylinder, 32. supporting column, 33. first rotating mounting member, 34. second rotating mounting member, 35. connecting column, 36. second mounting member;

[0025] 4. The third rotating module, 41. The second driving mechanism, 411. The screw motor, 412. The screw, 413. The guide rail, 414. The adapter, 415. The limit block, 42. The driving connecting rod, 43. The sliding connecting seat, 431. The sliding groove, 44. The sliding connecting rod. DETAILED DESCRIPTION

[0026] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0027] Please refer to all the following drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0028] The following embodiments are only for illustration purposes and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0029] See also Figure 1-4 As shown, the present invention provides a rotating device for a photovoltaic power generation panel, the rotating device comprising: a mounting seat 1, a first rotating module 2, a second rotating module 3 and a third rotating module 4; the first rotating module 2 is arranged on the mounting seat 1, the second rotating module 3 is arranged on the first rotating module 2; the second rotating module 3 is used to adjust the tilt angle of the photovoltaic power generation panel in the length direction; the third rotating module 4 is arranged on the second rotating module 3, the photovoltaic power generation panel is arranged on the third rotating module 4; the third rotating module 4 is used to adjust the tilt angle of the photovoltaic power generation panel in the width direction; the first rotating module 2 is used to drive the second rotating module 3, the third rotating module 4 and the photovoltaic power generation panel to rotate relative to the mounting seat 1. In this embodiment, on the one hand, the tilt angle of the photovoltaic power generation panel in the length direction relative to the mounting seat 1 is adjusted by the first angle adjustment mechanism to ensure that the photovoltaic power generation panel can always face the sun during the daytime, and on the other hand, the photovoltaic power generation panel is driven to rotate relative to the mounting seat 1 by the first rotating module 2 and the tilt angle of the photovoltaic power generation panel in the width direction relative to the mounting seat 1 is adjusted by the third rotating module 4, so that the photovoltaic power generation panel can adapt to the direct sunlight point in different seasons, ensuring that the efficiency of the photovoltaic power generation system can be maximized.

[0030] In one embodiment, the first rotating module 2 includes a mounting disk 21, a first driving mechanism, a first mounting member 29 and a plurality of mounting posts 30; one end of the plurality of mounting posts 30 is connected to the mounting seat 1, and the other end is connected to the mounting disk 21; the angle adjustment module is mounted on the first mounting member 29, and the first mounting member 29 is rotatably connected to the mounting disk 21; the first driving mechanism is arranged on the mounting disk 21, and is used to drive the first mounting member 29 to rotate relative to the mounting disk 21. Specifically, there can be 4 mounting posts 30, and the 4 mounting posts 30 are arranged on the mounting seat 1 at intervals to form a rectangle, so as to stably install the mounting disk 21. Of course, the mounting posts 30 can also be other numbers, such as 3, to form a triangular structure to install the mounting disk 21, and this embodiment is not limited to this, as long as the mounting disk 21 can be stably installed. The arrangement of the mounting disk 21 is convenient for installing the first driving mechanism on the one hand, and is convenient for realizing the rotation of the first mounting member 29 relative to the mounting seat 1 on the other hand.

[0031] The first driving mechanism includes a driving motor 22, a first gear 23, a second gear 24 and a guide assembly 25; the driving motor 22 is arranged on the mounting plate 21, the first gear 23 is connected to the driving motor 22, the second gear 24 is arranged on the first mounting member 29, and the first gear 23 and the second gear 24 are in transmission connection; the guide assembly 25 is arranged between the mounting plate 21 and the first mounting member 29, and is connected to the mounting plate 21 and the first mounting member 29; the first driving mechanism drives the first rotating member and the second gear 24 to rotate, thereby driving the first mounting member 29 to rotate. Specifically, the first gear 23 can be an external gear, and the second gear 24 can be an internal gear; the second gear 24 can be mounted on the first mounting member 29 by a fixing structure such as a screw, or a first through hole can be arranged at the center of the first mounting member 29, and the second gear 24 can be mounted on the inner side wall of the first through hole, or directly formed integrally on the inner side wall of the through hole, which is not limited in this embodiment.

[0032] The first gear 23 may be coaxially arranged on the transmission shaft of the driving motor 22, or may be connected to the driving motor 22 through a transmission structure such as a belt. In this embodiment, the first driving mechanism further includes a first pulley, a second pulley 26, a first rotating shaft 27 and a belt 28; the first pulley is connected to the first, the first rotating shaft 27 is rotatably connected to the mounting disk 21, one end of the first rotating shaft 27 is connected to the second pulley 26, and the other end is connected to the first gear 23; the belt 28 is sleeved on the first pulley and the second pulley 26. The driving motor 22 is arranged on the bottom surface of the mounting disk 21, and the guide assembly 25 is arranged on the top surface of the mounting disk 21; a second through hole is arranged at the center of the mounting disk 21, and the first rotating shaft 27 passes through the second through hole and is connected to the first gear 23; the driving motor 22 may be a motor, and the first pulley may be coaxially arranged on the transmission shaft of the motor.

[0033] The guide assembly 25 includes a first guide rail 251 and a second guide rail 252; the first guide rail 251 is arranged on the first mounting member 29, and a first guide protrusion 2511 and a second guide protrusion 2512 are arranged on the first guide rail 251, and a first guide gap 2513 is formed between the first guide protrusion 2511 and the second guide protrusion 2512; the second guide rail 252 is arranged on the mounting plate 21, and a third guide protrusion 2521 and a fourth guide protrusion 2522 are arranged on the second guide rail 252, and a second guide gap 2523 is formed between the third guide protrusion 2521 and the fourth guide protrusion 2522; the first guide gap 2513 is used to accommodate the third guide protrusion 2521, and the second guide gap 2523 is used to accommodate the second guide protrusion 2512. A third through hole may be arranged at the center of the first guide rail 251, and the first rotating shaft 27 passes through the third through hole to connect with the first gear 23. The first guide rail 251 may be fixedly disposed on the bottom surface of the first mounting member 29, or may be integrally formed with the first mounting member 29 on the bottom surface of the first mounting member 29. There may be multiple second guide rails 252, specifically, 252, forming a triangular structure, so as to limit the first guide rail 251 on the mounting plate 21, so that the first guide rail 251 can only rotate relative to the mounting plate 21.

[0034] The guide assembly 25 further includes a second rotating shaft, and the second guide rail 252 is rotatably connected to the first mounting member 29 via the second rotating shaft. Specifically, the second rotating shaft can be connected to the second guide rail 252 via a bearing, so that when the first mounting member 29 rotates, the first guide rail 251 and the second guide rail 252 can rotate relatively, thereby reducing the friction between the first guide rail 251 and the second guide rail 252, avoiding large wear on the contact surface of the two, and increasing the service life of the rotating device.

[0035] In one embodiment, the second rotating module 3 includes an electric cylinder 31, at least two supporting columns 32, at least two first rotating mounting members 33, at least two second rotating mounting members 34 and a connecting column 35; the supporting columns 32 and the first rotating mounting members 33 are arranged on the first mounting member 29 at intervals, one end of the supporting column 32 is fixedly connected to the first mounting member 29, and the other end is rotatably connected to the photovoltaic power generation panel; the first rotating mounting member 33 and the second rotating mounting member 34 are arranged in a one-to-one correspondence, one end of the first rotating mounting member 33 is rotatably connected to the first mounting member 29, and the other end is rotatably connected to the first mounting member 29 The second rotating mounting member 34 is rotatably connected, and one end of the second rotating mounting member 34 away from the first rotating mounting member 33 is rotatably connected to the photovoltaic power generation panel; one end of the connecting column 35 is connected to the connecting end of one of the second rotating mounting members 34 and the first rotating mounting member 33, and the other end is connected to the connecting end of the other second rotating mounting member 34 and the first rotating mounting member 33; the electric cylinder 31 is arranged on the first mounting member 29, and the driving member is connected to the connecting column 35, which is used to drive the connecting column 35 to move, and then drive the first rotating mounting member 33 and the second rotating mounting member 34 to rotate. Specifically, the supporting column 32 and the first rotating mounting member 33 can be two respectively, and the supporting column 32 and the first rotating mounting member 33 are arranged on the first mounting member 29 at intervals, respectively located at a corner of the photovoltaic power generation panel, so as to ensure the stability of the photovoltaic power generation panel. The electric cylinder 31 can be an electric cylinder, and the movement of the electric cylinder drives the connecting column 35 to move linearly, and then drives the connecting column 35 to change the angle formed between the first rotating mounting member 33 and the second rotating mounting member 34, so as to achieve the angle adjustment of the photovoltaic power generation panel relative to the horizontal plane. In one embodiment, the length of the support column 32 is greater than the sum of the length of the first rotating mounting member 33 and the length of the second rotating mounting member 34, so that the photovoltaic panel can be adjusted at multiple angles, thereby further adapting to the angle of the sun in the morning, noon and evening.

[0036] In one embodiment, the third rotating module 4 includes a second driving mechanism 41, a driving connecting rod 42, at least two sliding connection seats 43 and at least four sliding connecting rods 44; the second driving mechanism 41 and the sliding connection seat 43 are arranged on the second mounting member 36; one end of the driving connecting rod 42 is rotationally connected to the second driving mechanism 41, and the other end is rotationally connected to the photovoltaic power generation panel; each sliding connection seat 43 is provided with two sliding grooves 431, and the angle formed by the extension direction of each sliding groove 431 and the width direction of the second mounting member 36 is an acute angle; the two sliding grooves 431 arranged on the same sliding connection seat 43 are symmetrically installed on the sliding mounting seat with the mid-perpendicular line of the second mounting member 36 as the center line; the sliding connecting rod and the sliding groove 431 are arranged one by one; one end of the sliding connecting rod 44 is connected to the photovoltaic power generation panel, and the other end is slidably connected to the sliding groove 431; the second driving mechanism 41 drives the driving connecting rod 42 to move, thereby driving the sliding connecting rod 44 arranged on the photovoltaic power generation panel to slide in the sliding groove 431 to adjust the inclination angle in the width direction of the photovoltaic power generation panel. In this embodiment, there are two sliding connection seats 43 , and each sliding connection seat 43 is provided with two sliding grooves 431 .

[0037] The second driving mechanism 41 includes a screw motor 411, a screw 412, a screw 412 nut, a guide rail 413 and an adapter 414; the screw motor 411 and the guide rail 413 are arranged on the second mounting member 36; the adapter 414 is slidably arranged on the guide rail 413; one end of the screw 412 is connected to the screw motor 411; the screw 412 is connected to the adapter 414 through the screw 412 nut; and a driving connecting rod 42 is connected to both ends of the adapter 414. The second driving mechanism 41 also includes two limit blocks 415 for limiting the movement of the adapter 414, and a limit block 415 is arranged at both ends of the guide rail 413. The screw motor 411 can be a screw 412 motor, and the guide rail 413 can be a slide rail, which can be arranged in two and symmetrically arranged on both sides of the screw 412. A limit block 415 is arranged at both ends of each guide rail. The adapter 414 can be an adapter block.

[0038] The working principle of the second angle adjustment mechanism: the screw motor 411 drives the screw 412 to rotate, and the rotation of the screw 412 drives the adapter to move linearly along the guide rail 413. The movement of the adapter drives the photovoltaic panel to move. Since the sliding link 44 and the sliding groove 431 are slidingly connected, when the sliding link 44 slides in the sliding groove 431, the inclination angle of the photovoltaic panel can be changed, and at the same time, the driving link 42 also rotates relative to the adapter block and the photovoltaic panel.

[0039] Another aspect of the present invention provides a photovoltaic power generation system, comprising a photovoltaic power generation panel rotating device and a photovoltaic power generation panel as described above; the photovoltaic power generation panel is installed on the rotating device.

[0040] In summary, the present invention, on the one hand, uses the first angle adjustment mechanism to adjust the tilt angle of the photovoltaic panel relative to the mounting seat 1 in the length direction to ensure that the photovoltaic panel can always face the sun during the day, and on the other hand, uses the first rotating module 2 to drive the photovoltaic panel to rotate relative to the mounting seat 1 and the third rotating module 4 to adjust the tilt angle of the photovoltaic panel relative to the mounting seat 1 in the width direction, thereby making the photovoltaic panel adapt to the direct sunlight point in different seasons, ensuring that the efficiency of the photovoltaic power generation system can be maximized. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0041] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A rotating device for a photovoltaic panel, characterized in that: The rotating device comprises: a mounting seat, a first rotating module, a second rotating module and a third rotating module; The first rotating module is arranged on the mounting seat, and the second rotating module is arranged on the first rotating module; the second rotating module is used to adjust the tilt angle of the photovoltaic power generation panel in the length direction; The third rotating module is arranged on the second rotating module, and the photovoltaic power generation panel is arranged on the third rotating module; the third rotating module is used to adjust the tilt angle of the photovoltaic power generation panel in the width direction; The first rotating module is used to drive the second rotating module, the third rotating module and the photovoltaic power generation panel to rotate relative to the mounting seat.

2. A photovoltaic panel rotating device according to claim 1, characterized in that: The first rotating module includes a mounting plate, a first driving mechanism, a first mounting member and a plurality of mounting posts; One end of the plurality of mounting posts is connected to the mounting seat, and the other end is connected to the mounting plate; The angle adjustment module is mounted on the first mounting member, and the first mounting member is rotatably connected to the mounting plate; The first driving mechanism is disposed on the mounting plate, and is used to drive the first mounting member to rotate relative to the mounting plate.

3. A photovoltaic panel rotating device according to claim 2, characterized in that: The first driving mechanism includes a driving motor, a first gear, a second gear and a guide assembly; The driving motor is arranged on the mounting plate, the first gear is connected to the driving motor, the second gear is arranged on the first mounting member, and the first gear is drivingly connected to the second gear; The guide assembly is disposed between the mounting plate and the first mounting member, and is connected to the mounting plate and the first mounting member; The driving motor drives the first rotating member and the second gear to rotate, thereby driving the first mounting member to rotate.

4. A photovoltaic panel rotating device according to claim 3, characterized in that: The first driving mechanism also includes a first pulley, a second pulley, a first rotating shaft and a belt; the first pulley is connected to the first connection, the first rotating shaft is rotatably connected to the mounting plate, one end of the first rotating shaft is connected to the second pulley, and the other end is connected to the first gear; the belt is sleeved on the first pulley and the second pulley.

5. The photovoltaic panel rotating device according to claim 3, characterized in that: The guide assembly includes a first guide rail and a second guide rail; The first guide rail is arranged on the first mounting member, and a first guide protrusion and a second guide protrusion are arranged on the first guide rail, and a first guide gap is formed between the first guide protrusion and the second guide protrusion; the second guide rail is arranged on the mounting plate, and a third guide protrusion and a fourth guide protrusion are arranged on the second guide rail, and a second guide gap is formed between the third guide protrusion and the fourth guide protrusion; the first guide gap is used to accommodate the third guide protrusion, and the second guide gap is used to accommodate the second guide protrusion.

6. The photovoltaic panel rotating device according to claim 2, characterized in that: The second rotating module includes an electric cylinder, at least two supporting columns, at least two first rotating mounting members, at least two second rotating mounting members, a connecting column and a second mounting member; The support column and the first rotating mounting member are arranged on the first mounting member at intervals, one end of the support column is fixedly connected to the first mounting member, and the other end is rotatably connected to the second mounting member; The first rotating mounting member and the second rotating mounting member are arranged in one-to-one correspondence, one end of the first rotating mounting member is rotatably connected to the first mounting member, the other end of the first rotating mounting member is rotatably connected to the second rotating mounting member, and one end of the second rotating mounting member away from the first rotating mounting member is rotatably connected to the second mounting member; One end of the connecting column is connected to one of the connecting ends of the second rotating mounting member and the first rotating mounting member, and the other end is connected to the other connecting end of the second rotating mounting member and the first rotating mounting member; The electric cylinder is arranged on the first mounting member, and the driving member is connected to the connecting column to drive the connecting column to move, thereby driving the first rotating mounting member and the second rotating mounting member to rotate.

7. A photovoltaic panel rotating device according to claim 6, characterized in that: The third rotating module comprises a second driving mechanism, a driving connecting rod, at least two sliding connecting seats and at least four sliding connecting rods; The second driving mechanism and the sliding connection seat are arranged on the second mounting member; one end of the driving connecting rod is rotatably connected to the second driving mechanism, and the other end is rotatably connected to the photovoltaic power generation panel; Two sliding grooves are arranged on each of the sliding connection seats, and the angle formed by the extension direction of each sliding groove and the width direction of the second mounting member is an acute angle; the two sliding grooves arranged on the same sliding connection seat are symmetrically installed on the sliding mounting seat with the mid-perpendicular line of the second mounting member as the center line; the sliding connection rods are arranged one-to-one with the sliding grooves; one end of the sliding connection rod is connected to the photovoltaic power generation panel, and the other end is slidably connected to the sliding groove; The second driving mechanism drives the driving connecting rod to move, thereby driving the sliding connecting rod arranged on the photovoltaic power generation panel to slide in the sliding groove, so as to adjust the inclination angle of the photovoltaic power generation panel in the width direction.

8. The photovoltaic panel rotating device according to claim 7, characterized in that: The second driving mechanism includes a screw motor, a screw, a screw nut, a guide rail and an adapter; The screw motor and the guide rail are arranged on the second mounting member; the adapter is slidably arranged on the guide rail; one end of the screw is connected to the screw motor; the screw is connected to the adapter through the screw nut; and a driving connecting rod is connected to each of the two ends of the adapter.

9. A photovoltaic panel rotating device according to claim 8, characterized in that: The second driving mechanism further includes two limit blocks for limiting the movement of the adapter, and one limit block is respectively disposed at both ends of the guide rail.

10. A photovoltaic power generation system, characterized in that: It comprises a rotating device for a photovoltaic power generation panel as described in any one of claims 1 to 9 and a photovoltaic power generation panel; the photovoltaic power generation panel is installed on the rotating device.

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