Solar photovoltaic panel capable of automatically tracking sun

Abstract

The invention discloses a solar photovoltaic panel capable of automatically tracking the sun. The solar photovoltaic panel comprises a plurality of photovoltaic panel bodies, the photovoltaic panel is characterized in that a connecting plate is fixed in the middle of the lower surface of the photovoltaic panel body along the length direction; supporting rods are rotationally connected to the middles of the lower surfaces of the connecting plates; the upper part of the supporting rod is fixedly connected with a first connector; a first hinge block is fixedly connected to the position, corresponding to the first connector, of the connecting plate. The lower surface of the connecting plate is fixedly connected with a connecting rod which is obliquely arranged; the photovoltaic panel bodies can automatically track the direct solar radiation angle, and fluid is adopted as a transmission medium, so that the driving force provided by the motor can be directly transmitted to the plurality of photovoltaic panel bodies, the energy loss in the motor transmission process is avoided, and the transmission pressure of the motor is relieved; according to the utility model, the transmission capability is still good when a photovoltaic system is arranged on a large scale, the arrangement randomness is also increased, the dependence degree on the environment is low, the safety is better, the equipment cost is also lower, and the effects of increasing the income and reducing the cost are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic panel adjustment, and in particular relates to a solar photovoltaic panel capable of automatically tracking the sun. Background Art

[0002] The solar photovoltaic system is also called photovoltaics. Its main core is the solar photovoltaic panel, which can use the photovoltaic effect to convert solar energy into direct current electricity. It is a clean and renewable energy. In order to maximize the efficiency of converting solar energy into electricity, the receiving angle of the photovoltaic panel needs to be adjusted according to the direct angle of the sun during photovoltaic power generation.

[0003] A Chinese patent with publication number CN117978067A discloses a photovoltaic panel mounting bracket for tracking the sun. The photovoltaic panel is a single-body structure. When adjusting the angle of the photovoltaic panel, it is driven by a forward and reverse motor. The driving force provided by the forward and reverse motor is used in conjunction with transmission components such as gears and ring gears to drive the photovoltaic panel to rotate, so as to achieve the purpose of adjusting the receiving angle of the photovoltaic panel to the direct angle of the sun.

[0004] A Chinese patent with publication number CN209120111U discloses an automatic adjustment mechanism for installing solar photovoltaic panels. The photovoltaic panels are multi-body structures and also use motors as driving sources. The driving force provided by the motors cooperates with driving gears and driven gears to drive the photovoltaic panels to rotate, and then the connecting plates are used to provide driving force to other photovoltaic panels, so that all photovoltaic panels are adjusted to face the direct angle of the sun.

[0005] In the technical solution disclosed in the first patent mentioned above, a motor is used to drive a photovoltaic panel to rotate so that the photovoltaic panel faces the direct angle of the sun. However, due to the use of a single-body structure (i.e., one driving source provides a rotational driving force for one photovoltaic panel), and the electric energy converted from photovoltaic power generation also provides energy for the motor, the energy consumed by all motors combined is considerable when applied on a large scale. In the technical solution disclosed in the second patent, a multi-body structure (i.e., one driving source provides a rotational driving force for multiple photovoltaic panels) is used to adjust the rotation angle of the photovoltaic panel. Although the energy consumption caused by the motor is reduced to a certain extent, the motor transmission process undergoes multiple stages of transmission, resulting in more energy loss in the transmission process. Not only can the driving force not be fully utilized, resulting in energy waste, but it also increases the difficulty of motor driving. The larger the scale of the photovoltaic panel layout, the worse the motor transmission effect, which is prone to damage. Summary of the invention

[0006] The purpose of the present invention is to provide a solar photovoltaic panel that automatically tracks the sun, so as to solve the technical problem in the prior art that when photovoltaic power generation systems are deployed on a large scale, all photovoltaic panels cannot be automatically rotated with low energy loss to face the direct angle of the sun.

[0007] The purpose of the present invention can be achieved through the following technical solutions: A solar photovoltaic panel for automatic sun tracking, comprising a plurality of photovoltaic panel bodies; characterized in that: a connecting plate is fixed to the middle of the lower surface of the photovoltaic panel body along the length direction; a support rod is rotatably connected to the middle of the lower surface of the connecting plate; a first connecting head is fixed to the upper part of the support rod; a first hinge block is fixed to the position of the connecting plate corresponding to the first connecting head; The lower surface of the connecting plate is fixedly connected with an obliquely arranged connecting rod; the middle and upper part of the side of the supporting rod is provided with evenly distributed plug holes; a first hollow tube is arranged on one side of the connecting plate close to the trough body; the bottom of the first hollow tube is fixedly connected with a second hinge block; A first piston is slidably disposed inside the first hollow tube, and the first piston divides the internal space of the first hollow tube into two spaces, an upper space and an lower space; a sliding rod is fixedly connected to the center of the upper surface of the first piston, and the upper end of the sliding rod penetrates above the first hollow tube; a second connector is fixedly connected to the upper end of the sliding rod; The first hollow tube is provided with a driving assembly, which includes a first through hole provided at the lower part of the first hollow tube; the first through hole is connected with a first shunt pipe; The first hollow tube and the pipe connected thereto are filled with liquid or gas.

[0008] Preferably, the driving assembly further comprises a second through hole provided at the upper portion of the first hollow tube; the second through hole is connected to a second shunt tube.

[0009] Preferably, a plurality of the first branch pipes are commonly connected to form a first main pipe; a plurality of the second branch pipes are commonly connected to form a second main pipe; a second hollow pipe is arranged beside the first main pipe and the second main pipe, and the first main pipe and the second main pipe are respectively connected to the two ends of the second hollow pipe; a second piston is slidably arranged inside the second hollow pipe.

[0010] Preferably, the second piston is centrally threadedly connected to a screw rod, one end of which passes through the outside of the second hollow tube; a motor is provided at the end of the screw rod, and the output end of the motor is connected to the screw rod; a limit rod connecting the two ends is also fixedly connected inside the hollow tube, and the limit rod passes through the second piston.

[0011] Preferably, the first hollow tube and the pipe connected thereto are filled with liquid.

[0012] Preferably, the lower end of the connecting rod is a circular structure with double-sided protrusions.

[0013] Preferably, a wire management hole is provided in the lower middle portion of the support rod, and the upper and lower corners of the wire management hole are both smooth curved surfaces.

[0014] Preferably, the driving assembly further comprises an air tank fixedly arranged beside one of the support rods; the first mainstream pipe is connected to the inside of the air tank; and a throttle valve is installed at the connection between the first mainstream pipe and the air tank.

[0015] Preferably, the surface of the gas storage tank is painted with black paint.

[0016] Preferably, the first hollow tube and the pipe connected thereto are filled with gas.

[0017] Beneficial effects of the present invention: 1) The present invention drives the photovoltaic panel body to rotate through the first hollow tube and the first piston and connecting rod arranged inside, and uses the force exerted by the fluid on the first piston to force the first piston to move inside the first hollow tube, thereby causing the first piston to drive the connecting rod to slide, and the connecting rod drives the photovoltaic panel body to rotate, so that the photovoltaic panel body can automatically track the direct angle of the sun. Since it uses fluid as the transmission medium, it can not only directly transmit the driving force provided by the motor to multiple photovoltaic panel bodies, avoiding energy loss in the motor transmission process, reducing the motor transmission pressure, and still having good transmission capacity when the photovoltaic system is arranged on a large scale, but also increasing the randomness of the arrangement, with a lower degree of dependence on the environment, better safety, and lower equipment cost, achieving the effect of increasing revenue and reducing expenditure.

[0018] 2) The present invention can absorb the heat brought by the sun through the cooperation of the black-painted gas tank and the throttle valve, and use the principle of thermal expansion and contraction to expand the gas during the day, and cooperate with the throttle valve to push the first piston to move, thereby driving the photovoltaic panel body to automatically track the direct angle of the sun, and shrink the gas at night to reset the photovoltaic panel body. Since the photovoltaic panel body is also driven to rotate by solar energy, energy loss is reduced and the amount of electricity connected to the power grid is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention; Figure 2 yes Figure 1 A partial enlarged view of the middle A; Figure 3 is a cross-sectional view of the first embodiment of the present invention; Figure 4 yes Figure 3 A partial enlarged view of point B in the middle; Figure 5 yes Figure 3 A partial enlarged view of the center C Figure 6 is a schematic diagram of the structure of the first connector in Embodiment 1 and Embodiment 2 of the present invention; Figure 7 is a schematic diagram of the overall structure of the second embodiment of the present invention; Figure 8 It is a side view of the second embodiment of the present invention.

[0021] In the figure: 1. support rod; 2. photovoltaic panel body; 3. connecting plate; 4. first hinge block; 5. first connector; 6. connecting rod; 7. first hollow tube; 8. second connector; 9. trough body; 10. jack; 11. second hinge block; 12. first piston; 13. sliding rod; 14. first through hole; 141. first shunt pipe; 15. second through hole; 151. second shunt pipe; 16. first main flow pipe; 161. second main flow pipe; 162. second hollow tube; 163. screw rod; 164. second piston; 165. limit rod; 166. motor; 167. wire management hole; 17. gas tank; 171. throttle valve. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 as well as Figure 6 As shown, a solar photovoltaic panel for automatic sun tracking includes a plurality of photovoltaic panel bodies 2; a connecting plate 3 is fixed with bolts along the length direction in the middle of the lower surface of the photovoltaic panel body 2; a support rod 1 is rotatably connected to the middle of the lower surface of the connecting plate 3; a first connecting head 5 is fixedly connected to the upper part of the support rod 1; a first hinge block 4 is fixedly connected to the position of the connecting plate 3 corresponding to the first connecting head 5, and the first hinge block 4 and the first connecting head 5 are connected to each other via pins.

[0024] Through the cooperation between the first connecting block and the first connecting head 5 , after the support rod 1 is fixed, the photovoltaic panel body 2 can be rotated at any angle around the first hinge block 4 , thereby supporting and limiting the photovoltaic panel body 2 .

[0025] The lower surface of the connecting plate 3 is fixedly connected with an obliquely arranged connecting rod 6, and the lower end of the connecting rod 6 is a double-sided convex circular structure; a groove body 9 is provided on the upper middle part of the support rod 1 near the connecting rod 6; the side of the support rod 1 is provided with uniformly distributed plug holes 10 at the position corresponding to the groove body 9; a first hollow tube 7 is provided on the side of the connecting plate 3 near the groove body 9; A second hinge block 11 is fixedly connected to the bottom of the first hollow tube 7, and the second hinge block 11 is connected to the support rod 1 through the cooperation of the pin and the socket 10; Please refer again Figure 3 and Figure 4 As shown, a first piston 12 is slidably arranged inside the first hollow tube 7, and the first piston 12 divides the internal space of the first hollow tube 7 into two upper and lower spaces; a sliding rod 13 is fixedly connected to the center of the upper surface of the first piston 12, and the upper end of the sliding rod 13 passes through the top of the first hollow tube 7, which is used to drive the first piston 12 to slide back and forth inside the first hollow tube 7; a second connecting head 8 is fixedly connected to the upper end of the sliding rod 13, and the second connecting head 8 is connected to the bottom of the connecting rod 6.

[0026] The lower part of the first hollow tube 7 is rotatably connected to the support rod 1 through the second hinge block 11, and the first hollow tube 7 is rotatably connected to the connecting rod 6 through the second connecting head 8. Since the connecting rod 6 is connected to the photovoltaic panel body 2, the photovoltaic panel body 2 can be rotated at the top of the support rod 1 by moving the sliding rod 13 inside the first hollow tube 7, so that targeted rotation can be performed when the angle of sunlight changes.

[0027] Please refer again Figure 3 and Figure 5 As shown, a first through hole 14 is provided at the lower portion of the first hollow tube 7, and a second through hole 15 is provided at the upper portion; the first through hole 14 is connected to a first shunt tube 141; the second through hole 15 is connected to a second shunt tube 151; a wire management hole 167 is provided at the lower middle portion of the support rod 1, and the upper and lower corners of the wire management hole 167 are both smooth curved surfaces, which are used for the first shunt tube 141 and the second shunt tube 151 to be inserted and fixed.

[0028] By injecting liquid into the first diversion tube 141, the first piston 12 can slide upward inside the first hollow tube 7, thereby causing the slide rod 13 to slide upward, and then causing the connecting rod 6 to apply a force to the photovoltaic panel body 2, causing the photovoltaic panel body 2 to rotate; similarly, by injecting liquid into the second diversion tube 151, the photovoltaic panel body 2 can be rotated in the opposite direction.

[0029] Please refer again Figure 1 and Figure 5 As shown, a plurality of first flow dividers 141 are connected to a first main flow pipe 16; a plurality of second flow dividers 151 are connected to a second main flow pipe 161; a second hollow pipe 162 is provided beside the first main flow pipe 16 and the second main flow pipe 161, and the first main flow pipe 16 and the second main flow pipe 161 are connected to both ends of the second hollow pipe 162 respectively; A second piston 164 is slidably arranged inside the second hollow tube 162; a screw rod 163 is threadedly connected to the center of the second piston 164, one end of which passes through the outside of the second hollow tube 162; a motor 166 is arranged at the end of the screw rod 163, and the output end of the motor 166 is connected to the screw rod 163; a limit rod 165 connecting the two ends is also fixedly connected inside the hollow tube, and the limit rod 165 passes through the second piston 164, and is used to prevent the second piston 164 from rotating, forcing the second piston 164 to move inside the second hollow tube 162 when the screw rod 163 rotates.

[0030] By setting the second piston 164, the space inside the second hollow tube 162 is divided into two spaces on the left and right. At this time, since the first mainstream tube 16 and the second mainstream tube 161 are respectively connected to the two ends of the second hollow tube 162, when the space on one side of the second hollow tube 162 is compressed, the space on the other side will become larger. Therefore, when the second hollow tube 162, the first mainstream tube 16, the second mainstream tube 161, the first branch tube 141, the second branch tube 151 and each first hollow tube 7 are filled with liquid, when the second piston 164 moves inside the second hollow tube 162, the liquid can push all the first pistons 12 to move inside the corresponding first hollow tube 7, thereby causing the photovoltaic panel body 2 to rotate, thereby achieving the purpose of rotating all the photovoltaic panel bodies 2 connected thereto by only controlling the movement of the second piston 164 inside the second hollow tube 162.

[0031] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation mode of the present invention in the actual process is described in detail below: First, fix the photovoltaic panel body 2 on the corresponding support rod 1, then use the pin and the second hinge block 11 to fix the bottom of the first hollow tube 7 on any one of the jacks 10, and then use the second connector 8 and the connecting rod 6 to connect the photovoltaic panel body 2 with the sliding rod 13 inside the first hollow tube 7, and the photovoltaic panel can be installed and fixed; Then, each first shunt pipe 141 is connected to the first main pipe 16, each second shunt pipe 151 is connected to the second main pipe 161, and then the first main pipe 16 and the second main pipe 161 are connected to the two ends of the second hollow pipe 162 respectively, and the insides are filled with liquid to occupy all the space inside the pipes, and the installation and fixation of the pipelines can be completed; During the formal operation thereafter, the rotation timing or rotation speed of the motor 166 is controlled according to the change in the height of the sun over time at different seasons. The motor 166 drives the screw rod 163 to rotate, and with the cooperation of the screw rod 163 and the limit rod 165, the second piston 164 is forced to move inside the second hollow tube 162. At this time, since all the pipes are filled with liquid, the liquid flows under the compulsion of the second piston 164, thereby moving the first piston 12 inside the first hollow tube 7. Through the cooperation of each first piston 12 or the corresponding sliding rod 13, the angle of all photovoltaic panel bodies 2 changes, so that the photovoltaic panels can achieve the purpose of automatically tracking the angle of solar radiation around the clock.

[0032] Through the cooperation of multiple first hollow tubes 7 and one second hollow tube 162, when the liquid inside the second hollow tube 162 is pushed, the liquid inside all the first hollow tubes 7 can also be moved, and the second piston 164 is used to promote the flow of liquid, and then the liquid is used to push the first piston 12 to move, thereby achieving the purpose of making multiple photovoltaic panel bodies 2 rotate simultaneously following the angle of sunlight with low energy loss, greatly saving energy loss and increasing the grid-connected power of photovoltaic power generation; at the same time, since the pipeline is used to provide power for the rotation of the photovoltaic panel body 2, it can be controlled at a long distance, has a lower degree of dependence on the environment, and is safer.

[0033] It is worth noting here that: since liquid is almost incompressible, when using the cooperation of the second hollow tube 162 and the second piston 164 to provide rotational power for the photovoltaic panel body 2, it is necessary to add liquid inside each pipeline to avoid compression of the fluid inside the pipeline, which leads to energy transfer loss. The use of liquid can improve the energy output efficiency, reduce the consumption of the motor 166, and thus reduce energy loss.

[0034] Example 2: Please refer again Figure 7 and Figure 8 As shown, an air tank 17 is fixedly installed on the side of one of the support rods 1. The surface of the air tank 17 is painted with black paint. The first mainstream pipe 16 is connected to the inside of the air tank 17. A throttle valve 171 is installed at the connection between the first mainstream pipe 16 and the air tank 17.

[0035] When in use, the second through hole 15 is blocked, and then a sufficient amount of gas is filled into the gas storage tank 17, the first shunt pipe 141, the first main pipe 16 and the first hollow pipe 7. Then, during the formal operation, the gas cylinder is irradiated with sunlight, and the black-coated gas cylinder absorbs more heat to expand the gas inside the gas cylinder. Then, under the control of the throttle valve 171, the expanded gas flows from the first main pipe 16 and the first shunt pipe 141 to the inside of each first hollow pipe 7 at a fixed flow rate and a fixed pressure according to the different running trajectories of the sun in different seasons, and then compresses the corresponding The first piston 12 moves to control the photovoltaic panel body 2 to automatically rotate. At night, due to the lack of sunlight, the heat of the gas tank 17 is gradually lost, the gas inside the gas tank 17 gradually shrinks, and the gas compressed by the first piston 12 in the first hollow tube 7 gradually recovers its original volume, and then the photovoltaic panel body 2 is reset until the next day to reabsorb the heat brought by the sunlight. Through the setting of the gas tank 17 and the throttle valve 171, the photovoltaic panel body 2 can be automatically rotated with the help of the heat brought by the sunlight, completely getting rid of the dependence on electric energy and increasing the grid-connected power of photovoltaic power generation.

[0036] It is worth noting here that: since gas is more prone to thermal expansion and contraction, when using the cooperation of the gas tank 17 and the throttle valve 171 to provide rotational power for the photovoltaic panel body 2, it is necessary to add gas inside it to increase the expansion and contraction speed of the fluid, thereby providing more sufficient energy for the rotation of the photovoltaic panel body 2 and providing a faster speed for the resetting of the photovoltaic panel body 2.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solar photovoltaic panel capable of automatically tracking the sun, comprising a plurality of photovoltaic panel bodies (2); characterized in that: A connecting plate (3) is fixed along the length direction at the middle of the lower surface of the photovoltaic panel body (2); a support rod (1) is rotatably connected to the middle of the lower surface of the connecting plate (3); a first connecting head (5) is fixedly connected to the upper part of the support rod (1); a first hinge block (4) is fixedly connected to the position of the connecting plate (3) corresponding to the first connecting head (5); The lower surface of the connecting plate (3) is fixedly connected to an obliquely arranged connecting rod (6); the middle and upper part of the side surface of the support rod (1) is provided with evenly distributed plug holes (10); a first hollow tube (7) is provided on a side of the connecting plate (3) close to the trough body (9); a second hinge block (11) is fixedly connected to the bottom of the first hollow tube (7); The first hollow tube (7) is provided with a driving assembly, the driving assembly comprising a first through hole (14) provided at the lower part of the first hollow tube (7); the first through hole (14) is connected to a first shunt pipe (141); A first piston (12) is slidably disposed inside the first hollow tube (7), and the first piston (12) divides the internal space of the first hollow tube (7) into two upper and lower spaces; a sliding rod (13) is fixedly connected to the center of the upper surface of the first piston (12), and the upper end of the sliding rod (13) passes through the top of the first hollow tube (7); a second connector (8) is fixedly connected to the upper end of the sliding rod (13); The first hollow tube (7) and the pipe connected thereto are filled with liquid or gas.

2. The solar photovoltaic panel capable of automatically tracking the sun according to claim 1, characterized in that: The driving assembly further comprises a second through hole (15) formed on the upper portion of the first hollow tube (7); the second through hole (15) is connected to a second shunt tube (151).

3. The solar photovoltaic panel capable of automatically tracking the sun according to claim 2, characterized in that: A plurality of the first flow dividing tubes (141) are connected together to form a first main flow tube (16); a plurality of the second flow dividing tubes (151) are connected together to form a second main flow tube (161); a second hollow tube (162) is provided beside the first main flow tube (16) and the second main flow tube (161); the first main flow tube (16) and the second main flow tube (161) are respectively connected to two ends of the second hollow tube (162); and a second piston (164) is slidably provided inside the second hollow tube (162).

4. The solar photovoltaic panel capable of automatically tracking the sun according to claim 3, characterized in that: The center of the second piston (164) is threadedly connected to a screw rod (163), one end of which passes through the outside of the second hollow tube (162); a motor (166) is provided at the end of the screw rod (163), and the output end of the motor (166) is connected to the screw rod (163); a limit rod (165) connecting the two ends is also fixedly connected inside the hollow tube, and the limit rod (165) passes through the second piston (164).

5. The solar photovoltaic panel capable of automatically tracking the sun according to claim 2, characterized in that: The first hollow tube (7) and the pipe connected thereto are filled with liquid.

6. The solar photovoltaic panel capable of automatically tracking the sun according to claim 2, characterized in that: A wire management hole (167) is provided in the middle and lower part of the support rod (1), and the upper and lower corners of the wire management hole (167) are both smooth curved surfaces.

7. The solar photovoltaic panel capable of automatically tracking the sun according to claim 1, characterized in that: The lower end of the connecting rod (6) is a circular structure with double-sided protrusions.

8. The solar photovoltaic panel capable of automatically tracking the sun according to claim 1, characterized in that: The drive assembly further comprises an air storage tank (17) fixedly arranged beside one of the support rods (1); the first main flow pipe (16) is in communication with the interior of the air storage tank (17); and a throttle valve (171) is installed at the connection between the first main flow pipe (16) and the air storage tank (17).

9. The solar photovoltaic panel capable of automatically tracking the sun according to claim 8, characterized in that: The surface of the gas storage tank (17) is painted with black paint.

10. The solar photovoltaic panel capable of automatically tracking the sun according to claim 8, characterized in that: The first hollow tube (7) and the pipe connected thereto are filled with gas.

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