Photovoltaic device

Abstract

The invention discloses a photovoltaic device, and belongs to the technical field of photovoltaic devices, the photovoltaic device comprises a fixing frame of which the top is arranged in an opening state, and heat energy conversion mechanisms are arranged on the two sides of the opening of the top of the fixing frame and used for generating deformation through day and night temperature difference and converting heat energy into mechanical displacement. One end of the heat energy conversion mechanism is fixedly connected with an indexing rotating mechanism and is used for all-weather passive tracking, the heat energy conversion mechanism comprises a heat collection disc and a metal sheet, the metal sheet is located in the heat collection disc, the metal sheet is of a spiral structure, and the spiral metal sheet is used for converting bending deformation of the metal sheet into rotating motion. By adopting the heat energy conversion mechanism and the indexing rotation mechanism, the limitation that a traditional tracking system depends on electric energy is broken through, and the photovoltaic panel can automatically adjust the angle according to the temperature change, so that the orientation of the photovoltaic panel can be adjusted in real time, solar radiation is ensured to be received to the maximum extent, and the power generation efficiency of the photovoltaic device is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic devices, and particularly relates to a photovoltaic device. Background Art

[0002] With the gradual depletion of fossil fuel resources, the global demand for sustainable energy is becoming increasingly urgent. As a clean energy, photovoltaic technology can convert solar radiation into electricity, which is one of the important ways to solve the energy supply problem. A photovoltaic device is a device that converts light energy into electrical energy through the photovoltaic effect and is widely used in the field of solar power generation. It is used for distributed power generation, and users can independently build solar systems on rooftops, wastelands, or even in remote areas, reducing dependence on the traditional power grid and improving energy autonomy and security.

[0003] When in use, a photovoltaic device often adopts a photovoltaic panel. Most of the photovoltaic panels in existing photovoltaic devices are installed at a fixed angle, resulting in low power generation efficiency. Therefore, an electric tracking system is required to adjust the angle so that the photovoltaic panel always maintains the best angle with the sun. The electric tracking system needs to install electric drives, sensors, control systems, etc., which makes its initial installation cost relatively high. At the same time, long-term operation also requires a certain amount of electric energy to drive the movement of the system, which will lead to a reduction in the energy efficiency of the photovoltaic system, especially in areas with power shortages or high costs. Moreover, since the electric tracking system consists of multiple mechanical and electronic components, the system may malfunction, such as motor damage, sensor failure, etc. The complexity of fault repair and daily maintenance is relatively high, and regular inspections and maintenance are required. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a photovoltaic device.

[0005] The technical solution adopted to solve the above technical problem is: a photovoltaic device, including a fixed frame with an open top. On both sides of the open top of the fixed frame, there are heat energy conversion mechanisms for generating deformation due to the day-night temperature difference and converting heat energy into mechanical displacement. One end of the heat energy conversion mechanism is fixedly connected to a indexing rotation mechanism for all-weather passive tracking. The heat energy conversion mechanism includes a heat collecting plate and a metal sheet, and the metal sheet is located inside the heat collecting plate. The metal sheet is arranged in a spiral structure, and the spiral shape of the metal sheet is used to convert the bending deformation of the metal sheet into rotational motion. The indexing rotation mechanism includes four support plates fixedly connected to the top surface of the fixed frame, and the four support plates are symmetrically arranged in pairs. On one side of one of the support plates, a second bevel gear disc is rotatably connected, and the heat collecting disc is fixedly connected to the side of the support plate away from the second bevel gear disc. At the same time, the connecting shaft of the second bevel gear disc penetrates and rotates through the support plate and the heat collecting disc, and one end of the metal sheet is fixedly connected to the penetrating end of the connecting shaft of the second bevel gear disc; On one side of another support plate, a first bevel gear disc is fixedly connected, and the first bevel gear disc is arranged opposite to the second bevel gear disc. On the side of the first bevel gear disc away from the support plate, a connecting frame arranged in a triangular structure is rotatably connected, and a connecting rod penetrates and rotates through one side of the connecting frame. At the same time, first bevel gears and second bevel gears are fixedly connected to both ends of the connecting rod. The first bevel gear is in transmission connection with the second bevel gear disc, and the second bevel gear is in transmission connection with the first bevel gear disc.

[0006] Through the above technical solution, as the position of the sun changes, the angle of the photovoltaic panel is automatically adjusted to ensure that the device continuously absorbs the maximum amount of solar energy at different times of the day, avoiding the low power generation efficiency caused by fixed-angle installation. Moreover, by driving the photovoltaic panel to adjust the angle through temperature changes, it does not rely on external power or complex control systems, significantly reducing the initial investment and operation and maintenance costs.

[0007] Further, a fixing rod penetrates and rotates through the side of the support plate away from the first bevel gear disc, and the penetrating end of the fixing rod is fixedly connected to the connecting frame. At the end of the fixing rod away from the connecting frame, a rotating plate and a convex plate are fixedly connected through penetration. At the same time, a ratchet wheel is rotatably connected to the end of the fixing rod away from the connecting frame. The fixing rod is located at the eccentric position of the rotating plate. At the bottom of the side of the fixing rod away from the rotating plate, a cable is fixedly connected, and the other end of the cable penetrates and slides through the fixed frame. At the same time, a counterweight block is installed at the penetrating end of the cable.

[0008] Through the above technical solution, it does not rely on complex electric components, avoiding problems such as motor failures and circuit damages that may occur in the electric tracking system. The ratchet transmission mechanism can ensure that the photovoltaic panel is firmly locked after each angle adjustment, reducing the failures and maintenance requirements of the mechanical system.

[0009] Further, a sleeve plate is rotatably connected to the outside of the rotating plate, and the rotating plate is located inside the sleeve plate. One end of the sleeve plate is rotatably connected to an L-shaped connecting plate. The corner end of the L-shaped connecting plate is rotatably connected to a support frame, and the support frame is fixedly connected to the fixed frame. One end of the L-shaped connecting plate away from the support frame is rotatably connected to an arc-shaped claw, and the arc-shaped claw is slidably engaged with the ratchet wheel. A pawl is rotatably connected to the top of the support frame, and the pawl is slidably engaged with the ratchet wheel. At the same time, a fixed block is fixedly connected to the side of the pawl facing the convex plate. A metal spring is fixedly connected between the sides of the pawl and the arc-shaped claw away from the convex plate.

[0010] Through the above technical solution, it is possible to effectively prevent the photovoltaic panel from rotating in the reverse direction or retracting during the adjustment process, ensuring that the photovoltaic panel can be stably maintained at the predetermined position after adjustment and will not undergo accidental displacement due to external factors (such as wind force).

[0011] Furthermore, a first memory spring is fixedly connected to the top of the ratchet pawl, and the other end of the first memory spring is fixedly connected to the support frame. A second memory spring is fixedly connected to the bottom of the arc-shaped pawl, and the other end of the second memory spring is fixedly connected to the support frame. A fixing member is fixedly connected to the center of the side of the ratchet wheel away from the convex plate, and a photovoltaic panel is installed between the fixing members on both sides of the fixing frame. At the same time, the two fixing members are located at the eccentric position of the photovoltaic panel.

[0012] Through the above technical solution, the photovoltaic panel is pushed step by step mechanically and can be firmly locked after each adjustment, avoiding the need for continuous power supply to maintain the angle of the photovoltaic panel. Therefore, the system can effectively save energy consumption during adjustment.

[0013] Furthermore, a second sliding groove is formed through one side of the fixing frame, and first sliding grooves are formed on both sides inside the fixing frame. A slider slidably connected to the fixing frame is arranged inside the first sliding groove. The other end of the slider is rotatably connected to a double-threaded rod, and the other end of the double-threaded rod is located inside the second sliding groove.

[0014] Through the above technical solution, the characteristic of rotating one grid at a time means that the load borne by the mechanism during each adjustment is relatively small, which helps to reduce friction and wear. In the long term, the durability of the system is improved, and the service life of the equipment is extended.

[0015] Furthermore, the other end of the double-threaded rod is slidably connected to the fixing frame. A first synchronous belt assembly is fixedly connected between the ends of the double-threaded rods on both sides of the fixing frame away from the slider, and the synchronous wheels inside the first synchronous belt assembly are fixedly connected to the double-threaded rods. One of the synchronous wheels inside the first synchronous belt assembly is fixedly connected to a first handle.

[0016] Through the above technical solution, the initial inclination angle of the photovoltaic panel can be adjusted, which can ensure that each photovoltaic panel can receive sunlight at the best angle in the initial installation stage, thereby improving the overall power generation efficiency of the photovoltaic system.

[0017] Furthermore, two adjusting rods are threadedly connected through between the two double-threaded rods on both sides of the fixing frame. The slider is threadedly connected with a lifting threaded rod, and both ends of the lifting threaded rod are rotatably connected to the fixing frame. A second synchronous belt assembly is rotatably connected to the top of the fixing frame.

[0018] Through the above technical solution, the solar radiation intensity and solar altitude angle are different in different regions. By adjusting the inclination angle, the photovoltaic system can optimize the light energy absorption according to different geographical locations and seasonal changes.

[0019] Furthermore, the connecting shaft of the synchronous pulley in the second synchronous belt assembly is rotatably connected through the fixing frame. At the same time, the penetrating end of the connecting shaft of the synchronous pulley in the second synchronous belt assembly is fixedly connected to the lifting threaded rod. A second handle is fixedly connected to the top of one of the synchronous pulleys in the second synchronous belt assembly.

[0020] Through the above technical solution, different specifications of photovoltaic panels may have different optimal requirements for the sunlight receiving angle. By precisely adjusting the initial inclination angle, each specification of photovoltaic panel can work at its optimal angle, avoiding insufficient illumination caused by inappropriate angles, and ensuring that the power generation efficiency of each photovoltaic panel reaches the maximum.

[0021] The beneficial effects of the present invention are as follows: (1) The present invention uses a metal sheet and sets it in a spiral shape. The longer the length of the metal sheet, the greater the bending deformation generated when it is subjected to thermal action, and it bends in the same direction when heated. By using the natural temperature change as the driving force, the photovoltaic panel can automatically adjust the angle with the temperature change and follow the sun's trajectory, thereby improving the power generation efficiency of the photovoltaic panel without additional power consumption, reducing the overall energy consumption of the system, and improving the energy utilization efficiency of the system; (2) When the metal sheet is bent by heat in the present invention, the second bevel gear disk rotates, causing the first bevel gear on one side of the second bevel gear disk to revolve and rotate along the circumference of the second bevel gear disk. Under the action of the connecting rod, the second bevel gear at the other end is driven to rotate, revolve and rotate along the circumference of the first bevel gear disk. The connecting frame follows the connecting rod to revolve and drives the fixed rod to rotate, and can generate a large output force with a small power input, making the adjustment of the photovoltaic panel more precise, effectively tracking the movement of the sun, and thus maximizing the light absorption efficiency of the photovoltaic panel; (3) In the present invention, the fixed rod drives the rotating plate and the convex plate to rotate. When the convex plate rotates, it can push the fixed block to move, thereby driving the ratchet pawl to rotate and separating it from the ratchet wheel. When the rotating plate rotates, due to the connection relationship between the fixed rod and the eccentric part of the rotating plate, the sleeve plate is driven to perform an elliptical motion, causing the L-shaped connecting plate to swing with the connection point with the support frame as the origin, pushing the ratchet wheel, and under the action of the metal spring, the ratchet pawl and the arc-shaped pawl perform an alternating motion, prompting the ratchet wheel to rotate one by one, enabling the photovoltaic panel to rotate one by one in an accurate step-by-step manner. This control method can ensure that the photovoltaic panel maintains a fixed angle during adjustment, thereby accurately tracking the movement of the sun. Description of the Drawings

[0022] Figure 1 is the first perspective structural schematic diagram of the present invention; Figure 2It is a schematic structural diagram of the second perspective of the present invention; Figure 3 It is a schematic structural diagram of the third perspective of the present invention; Figure 4 It is a schematic structural diagram of the fourth perspective of the present invention; Figure 5 It is Figure 3 an enlarged structural diagram of part A of Figure 6 It is Figure 2 an enlarged structural diagram of part B of Figure 7 It is Figure 4 an enlarged structural diagram of part C of Figure 8 It is a schematic structural diagram of the first perspective of the connection between the connecting frame and the connecting rod of the present invention; Figure 9 It is a schematic structural diagram of the second perspective of the connection between the connecting frame and the connecting rod of the present invention; Figure 10 It is a schematic structural diagram of the connection between the fixed rod and the rotating plate of the present invention; Figure 11 It is a schematic structural diagram of the connection between the ratchet wheel and the fixing member of the present invention; Figure 12 It is a schematic structural diagram of the connection between the second memory spring and the support frame of the present invention.

[0023] Reference numerals: 1, fixed frame; 2, first sliding groove; 3, second sliding groove; 4, slider; 5, lifting screw rod; 6, double-threaded screw rod; 7, adjusting rod; 8, first synchronous belt assembly; 9, first handle; 10, second synchronous belt assembly; 11, second handle; 12, photovoltaic panel; 13, support plate; 14, first bevel gear disk; 15, heat collecting disk; 16, metal sheet; 17, connecting frame; 18, connecting rod; 19, second bevel gear disk; 20, first bevel gear; 21, second bevel gear; 22, fixed rod; 23, cable; 24, counterweight; 25, support frame; 26, L-shaped connecting plate; 27, sleeve plate; 28, rotating plate; 29, convex plate; 30, ratchet wheel; 31, ratchet pawl; 32, fixed block; 33, arc-shaped pawl; 34, first memory spring; 35, second memory spring; 36, metal spring; 37, fixing member. Detailed implementation manners

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] As Figures 1-4As shown, a photovoltaic device in this embodiment includes a fixing frame 1 with an open top. A second sliding groove 3 is formed through one side of the fixing frame 1, and first sliding grooves 2 are formed on both sides inside the fixing frame 1. A slider 4 slidably connected to the fixing frame 1 is arranged inside the first sliding groove 2. A double-threaded rod 6 is rotatably connected to one side of the slider 4 away from the fixing frame 1. Two adjusting rods 7 are threadedly connected through between the two double-threaded rods 6 located on both sides of the fixing frame 1. A lifting threaded rod 5 is threadedly connected through the slider 4, and both ends of the lifting threaded rod 5 are rotatably connected to the fixing frame 1. A second synchronous belt assembly 10 is rotatably connected to the top of the fixing frame 1. The synchronous wheel connecting shaft in the second synchronous belt assembly 10 is rotatably connected through the fixing frame 1. At the same time, the penetrating end of the synchronous wheel connecting shaft in the second synchronous belt assembly 10 is fixedly connected to the lifting threaded rod 5, which can adjust the initial inclination angle of the photovoltaic panel 12, ensuring that each photovoltaic panel 12 can receive sunlight at the best angle in the initial installation stage, thereby improving the overall power generation efficiency of the photovoltaic system. A second handle 11 is fixedly connected to the top of one of the synchronous wheels in the second synchronous belt assembly 10. The other end of the double-threaded rod 6 is slidably connected to the fixing frame 1. A first synchronous belt assembly 8 is fixedly connected between the ends of the double-threaded rods 6 located on both sides of the fixing frame 1 away from the slider 4, and the synchronous wheel in the first synchronous belt assembly 8 is fixedly connected to the double-threaded rod 6. The solar radiation intensity and solar altitude angle are different in different regions. By adjusting the inclination angle, the photovoltaic system can optimize the light energy absorption according to different geographical locations and seasonal changes. A first handle 9 is fixedly connected to one of the synchronous wheels in the first synchronous belt assembly 8, and the other end of the double-threaded rod 6 is located inside the second sliding groove 3. Photovoltaic panels 12 of different specifications may have different best requirements for the sunlight receiving angle. By precisely adjusting the initial inclination angle, each specification of photovoltaic panel 12 can work at its best angle, avoiding insufficient illumination caused by inappropriate angles, and ensuring that the power generation efficiency of each photovoltaic panel 12 reaches the maximum.

[0026] As Figure 5As shown, on both sides of the top opening of the fixing frame 1, there are heat energy conversion mechanisms, which are used to generate deformation due to the day-night temperature difference and convert heat energy into mechanical displacement. One end of the heat energy conversion mechanism is fixedly connected with a indexing rotation mechanism for all-weather passive tracking. The heat energy conversion mechanism includes a heat collecting plate 15 and a metal sheet 16, and the metal sheet 16 is located inside the heat collecting plate 15. The heat collecting plate 15 is made of aluminum metal, which can not only provide good thermal conductivity, but also has a light weight and good corrosion resistance. The metal sheet 16 is arranged in a spiral structure, and the spiral shape of the metal sheet 16 is used to convert the bending deformation of the metal sheet 16 into rotational motion. The spiral design of the metal sheet 16 can significantly increase the length of the metal sheet 16. The longer the length of the metal sheet 16, the greater the bending deformation generated when it is subjected to thermal action. In this way, the influence of temperature change on the bending degree of the metal sheet 16 is more significant, thereby improving the sensitivity of the second bevel gear disk 19 to force. Secondly, there is another important purpose of the spiral design, that is, to convert the bending deformation of the metal sheet 16 into the rotational motion of the second bevel gear disk 19. This conversion can drive the second bevel gear disk 19 to rotate in a very intuitive way. As the position of the sun changes, the angle of the photovoltaic panel 12 is automatically adjusted to ensure that the device continuously absorbs the maximum amount of solar energy at different times of the day, avoiding the low power generation efficiency caused by fixed-angle installation. Moreover, by driving the adjustment of the angle of the photovoltaic panel 12 through temperature change, it does not rely on external power or complex control systems, significantly reducing the initial investment and operation and maintenance costs.

[0027] As Figures 1-11As shown, the indexing rotation mechanism includes four support plates 13 fixedly connected to the top surface of the fixed frame 1. A fixed rod 22 is rotatably connected through one side of the support plate 13 away from the first bevel gear disk 14, and the penetrating end of the fixed rod 22 is fixedly connected to the connecting frame 17. One end of the fixed rod 22 away from the connecting frame 17 is fixedly connected with a rotating plate 28 and a convex plate 29. The outside of the rotating plate 28 is rotatably connected with a sleeve plate 27, and the rotating plate 28 is located inside the sleeve plate 27. One end of the sleeve plate 27 is rotatably connected with an L-shaped connecting plate 26. The corner end of the L-shaped connecting plate 26 is rotatably connected with a support frame 25, and the support frame 25 is fixedly connected to the fixed frame 1. One end of the L-shaped connecting plate 26 away from the support frame 25 is rotatably connected with an arc claw 33, which can effectively prevent the photovoltaic panel 12 from rotating in the reverse direction or retracting during the adjustment process, ensuring that the photovoltaic panel 12 can be stably maintained at the predetermined position after adjustment and will not be accidentally displaced due to external factors (such as wind force). Moreover, the arc claw 33 is slidably engaged with the ratchet wheel 30. The top of the support frame 25 is rotatably connected with a ratchet pawl 31. The top of the ratchet pawl 31 is fixedly connected with a first memory spring 34. After the first memory spring 34 and the second memory spring 35 undergo special training, the material will actively switch between two preset shapes when heated and cooled. The spring extends at high temperature and contracts at low temperature. The other end of the first memory spring 34 is fixedly connected to the support frame 25. The bottom of the arc claw 33 is fixedly connected with a second memory spring 35, and the other end of the second memory spring 35 is fixedly connected to the support frame 25. A fixing member 37 is fixedly connected to the center of the side of the ratchet wheel 30 away from the convex plate 29, and a photovoltaic panel 12 is installed between the fixing members 37 on both sides of the fixed frame 1. At the same time, the two fixing members 37 are located at the eccentric position of the photovoltaic panel 12, so that the overall center of gravity of the photovoltaic panel 12 is located at the bottom of the fixing member 37. And the ratchet pawl 31 is slidably engaged with the ratchet wheel 30. The photovoltaic panel 12 is pushed step by step mechanically and can be firmly locked after each adjustment, avoiding the need to continuously supply power to maintain the angle of the photovoltaic panel 12. Therefore, the system can effectively save energy consumption during adjustment.

[0028] As Figures 1-12As shown, a fixed block 32 is fixedly connected to one side of the pawl 31 facing the convex plate 29. A metal spring 36 is fixedly connected between the sides of the pawl 31 and the arc-shaped claw 33 away from the convex plate 29. The metal spring 36 is a conventional elastic spring. During daily use, the metal spring 36 pulls the pawl 31 and the arc-shaped claw 33, so that the pawl 31 is always engaged with the ratchet 30, playing a two-way locking function on the ratchet 30. At the same time, the arc-shaped claw 33 is located in the ratchet groove of the ratchet 30 and can push the ratchet 30. One end of the fixed rod 22 away from the connecting frame 17 is rotatably connected to the ratchet 30. At the same time, the fixed rod 22 is located at the eccentric position of the rotating plate 28. A cable 23 is fixedly connected to the bottom of the side of the fixed rod 22 away from the rotating plate 28. The other end of the cable 23 is slidably connected through the fixed frame 1. A counterweight 24 is installed at the penetrating end of the cable 23. The four support plates 13 are symmetrically arranged in pairs. Without relying on complex electric components, it avoids problems such as motor failures and circuit damages that may occur in the electric tracking system. The ratchet 30 transmission mechanism can ensure that the photovoltaic panel 12 is firmly locked after each angle adjustment, reducing the failures and maintenance requirements of the mechanical system. A second bevel gear disk 19 is rotatably connected to one side of one of the support plates 13. The heat collecting disk 15 is fixedly connected to the side of the support plate 13 away from the second bevel gear disk 19. At the same time, the connecting shaft of the second bevel gear disk 19 is rotatably connected through the support plate 13 and the heat collecting disk 15. One end of the metal sheet 16 is fixedly connected to the penetrating end of the connecting shaft of the second bevel gear disk 19. A first bevel gear disk 14 is fixedly connected to one side of the other support plate 13. The first bevel gear disk 14 is arranged opposite to the second bevel gear disk 19. A connecting frame 17 with a triangular structure is rotatably connected to the side of the first bevel gear disk 14 away from the support plate 13. A connecting rod 18 is rotatably connected through one side of the connecting frame 17. At the same time, the first bevel gear 20 and the second bevel gear 21 are fixedly connected to both ends of the connecting rod 18. The first bevel gear 20 is in transmission connection with the second bevel gear disk 19, and the second bevel gear 21 is in transmission connection with the first bevel gear disk 14. The characteristic of turning one by one means that the load borne by the mechanism is relatively small during each adjustment, which helps to reduce friction and wear. In the long term, the durability of the system is improved, and the service life of the equipment is extended.

[0029] The working principle of this embodiment is as follows. The whole equipment is moved to the installation site. After the photovoltaic panel 12 is installed on the fixing member 37 and the fixing member 37 is located at the eccentric position of the photovoltaic panel 12, the second synchronous belt assembly 10 is driven by rotating the second handle 11, so that the two lifting threaded rods 5 rotate simultaneously, so that the slider 4 moves up and down in the first chute 2, and then drives the double-threaded rod 6 on one side of the slider 4 to move up and down synchronously in the second chute 3. Then, the first synchronous belt assembly 8 is driven by rotating the first handle 9, so that the two double-threaded rods 6 rotate simultaneously, so that the two adjusting rods 7 move towards or away from each other to support the bottom of the photovoltaic panel 12 of different specifications, so as to quickly set the initial inclination according to the latitude and take into account the seasonal changes.

[0030] At sunrise, as the temperature gradually rises, the first memory spring 34 and the second memory spring 35 are heated and the springs stretch. The metal sheets 16 in the heat collecting plates 15 on both sides of the fixing frame 1 are heated and bent, driving the second bevel gear disk 19 to rotate. As a result, the first bevel gear 20 on one side of the second bevel gear disk 19 revolves and rotates along the circumference of the second bevel gear disk 19. Under the action of the connecting rod 18, it drives the second bevel gear 21 at the other end to rotate, revolving and rotating along the circumference of the first bevel gear disk 14. The connecting frame 17 follows the connecting rod 18 to revolve and drives the fixed rod 22 to rotate. The fixed rod 22 rotates to wind and reel in the cable 23, driving the counterweight 24 to move upward. At the same time, the fixed rod 22 drives the rotating plate 28 and the convex plate 29 to rotate.

[0031] When the convex plate 29 rotates, it can push the fixed block 32 to move, thereby driving the ratchet pawl 31 to rotate and separating it from the ratchet wheel 30. When the rotating plate 28 rotates, due to the connection between the fixed rod 22 and the eccentric part of the rotating plate 28, it drives the sleeve plate 27 to perform an elliptical motion, causing the L-shaped connecting plate 26 to swing with the connection point with the support frame 25 as the origin, pushing the ratchet wheel 30, and under the action of the metal spring 36, causing the ratchet pawl 31 and the arc-shaped pawl 33 to perform an interleaved motion, prompting the ratchet wheel 30 to rotate step by step, thereby driving the photovoltaic panel 12 to gradually rotate following the rising sun in the east.

[0032] At sunset, as the temperature drops, the first memory spring 34 and the second memory spring 35 contract at low temperature, respectively driving the ratchet pawl 31 and the arc-shaped pawl 33 to rotate towards the support frame 25, separating the arc-shaped pawl 33 and the ratchet pawl 31 from the ratchet wheel 30. At the same time, when the metal sheet 16 gradually returns to its initial state, under the action of gravity, the counterweight 24 moves downward, pulling the fixed rod 22 to rotate through the cable 23 to assist the metal sheet 16 in resetting. And because the two fixing parts 37 are located at the eccentric part of the photovoltaic panel 12, the center of gravity of the photovoltaic panel 12 is located at the bottom of the two fixing parts 37. Then, under the action of gravity, the photovoltaic panel 12 rotates in the reverse direction and returns to the initial inclination angle, preparing for the next day's cycle.

[0033] The above is only a preferred embodiment of the present invention and is not used to limit the protection scope of the present invention.

Claims

1. The thermal energy conversion mechanism includes a heat collecting plate (15) and a metal sheet (16), and the metal sheet (16) is located inside the heat collecting plate (15). The metal sheet (16) is arranged in a spiral structure, and the spiral shape of the metal sheet (16) is used to convert the bending deformation of the metal sheet (16) into rotational motion; The indexing rotation mechanism includes four support plates (13) fixedly connected to the top surface of the fixed frame (1), and the four support plates (13) are symmetrically arranged in pairs. A second bevel gear disk (19) is rotatably connected to one side of one of the support plates (13), and the heat collecting plate (15) is fixedly connected to the side of the support plate (13) away from the second bevel gear disk (19). At the same time, the connecting shaft of the second bevel gear disk (19) is rotatably connected through the support plate (13) and the heat collecting plate (15). One end of the metal sheet (16) is fixedly connected to the penetrating end of the connecting shaft of the second bevel gear disk (19); A first bevel gear disk (14) is fixedly connected to one side of the other support plate (13), and the first bevel gear disk (14) is arranged opposite to the second bevel gear disk (19). A connecting frame (17) arranged in a triangular structure is rotatably connected to the side of the first bevel gear disk (14) away from the support plate (13). A connecting rod (18) is rotatably connected through one side of the connecting frame (17). At the same time, first bevel gears (20) and second bevel gears (21) are fixedly connected to both ends of the connecting rod (18). The first bevel gear (20) is in transmission connection with the second bevel gear disk (19), and the second bevel gear (21) is in transmission connection with the first bevel gear disk (14).

2. The photovoltaic device according to claim 1, wherein A fixed rod (22) is rotatably connected through the side of the support plate (13) away from the first bevel gear disk (14), and the penetrating end of the fixed rod (22) is fixedly connected to the connecting frame (17). A rotating plate (28) and a convex plate (29) are fixedly connected through the end of the fixed rod (22) away from the connecting frame (17). At the same time, a ratchet wheel (30) is rotatably connected to the end of the fixed rod (22) away from the connecting frame (17). At the same time, the fixed rod (22) is located at the eccentric position of the rotating plate (28). A cable (23) is fixedly connected to the bottom of the side of the fixed rod (22) away from the rotating plate (28), and the other end of the cable (23) is slidably connected through the fixed frame (1). At the same time, a counterweight (24) is installed at the penetrating end of the cable (23).

3. A photovoltaic device according to claim 2, characterized in that, An outer part of the rotating plate (28) is rotatably connected to a sleeve plate (27), and the rotating plate (28) is located inside the sleeve plate (27). One end of the sleeve plate (27) is rotatably connected to an L-shaped connecting plate (26). A corner end of the L-shaped connecting plate (26) is rotatably connected to a support frame (25), and the support frame (25) is fixedly connected to the fixed frame (1). One end of the L-shaped connecting plate (26) away from the support frame (25) is rotatably connected to an arc-shaped claw (33), and the arc-shaped claw (33) is slidably engaged with a ratchet wheel (30). A pawl (31) is rotatably connected to the top of the support frame (25), and the pawl (31) is slidably engaged with the ratchet wheel (30). At the same time, a fixed block (32) is fixedly connected to a side of the pawl (31) facing a convex plate (29). A metal spring (36) is fixedly connected between a side of the pawl (31) and a side of the arc-shaped claw (33) away from the convex plate (29).

4. A photovoltaic device according to claim 3, characterized in that, A first memory spring (34) is fixedly connected to the top of the pawl (31), and the other end of the first memory spring (34) is fixedly connected to the support frame (25). A second memory spring (35) is fixedly connected to the bottom of the arc-shaped claw (33), and the other end of the second memory spring (35) is fixedly connected to the support frame (25). A fixing member (37) is fixedly connected to a center of a side of the ratchet wheel (30) away from the convex plate (29). A photovoltaic panel (12) is installed between the fixing members (37) on both sides of the fixed frame (1), and at the same time, the two fixing members (37) are located at an eccentric position of the photovoltaic panel (12).

5. A photovoltaic device according to claim 1, characterized in that, A second sliding groove (3) is formed through one side of the fixed frame (1), and first sliding grooves (2) are formed on both sides inside the fixed frame (1). A slider (4) slidably connected to the fixed frame (1) is arranged inside the first sliding groove (2). A double-threaded link rod (6) is rotatably connected to a side of the slider (4) away from the fixed frame (1), and the other end of the double-threaded link rod (6) is located inside the second sliding groove (3).

6. A photovoltaic device according to claim 5, wherein The other end of the double-threaded link rod (6) is slidably connected to the fixed frame (1). A first synchronous belt assembly (8) is fixedly connected between the other ends of the double-threaded link rods (6) on both sides of the fixed frame (1) away from the sliders (4), and a synchronous pulley inside the first synchronous belt assembly (8) is fixedly connected to the double-threaded link rod (6). One of the synchronous pulleys inside the first synchronous belt assembly (8) is fixedly connected to a first handle (9).

7. A photovoltaic device according to claim 6, characterized in that, Two adjusting rods (7) are connected in a threaded manner through between the two double-threaded link rods (6) on both sides of the fixed frame (1). A lifting threaded rod (5) is connected in a threaded manner through the slider (4), and both ends of the lifting threaded rod (5) are rotatably connected to the fixed frame (1). A second synchronous belt assembly (10) is rotatably connected to the top of the fixed frame (1).

8. A photovoltaic device according to claim 7, characterized in that, A connecting shaft of a synchronous pulley inside the second synchronous belt assembly (10) is rotatably connected through the fixed frame (1), and at the same time, the penetrating end of the connecting shaft of the synchronous pulley inside the second synchronous belt assembly (10) is fixedly connected to the lifting threaded rod (5). A second handle (11) is fixedly connected to the top of one of the synchronous pulleys inside the second synchronous belt assembly (10).

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