A solar photovoltaic panel automatically tracking the sun

Abstract

The application discloses a kind of solar photovoltaic panels of automatic sun tracking, including multiple photovoltaic panel bodies;Its characterized in that: the middle part of the lower surface of the photovoltaic panel body is fixed with connecting plate along length direction;Connecting plate lower surface middle part is rotatably connected with support rod;Support rod upper portion is fixed with first connector;Connecting plate is fixed with first hinged block corresponding to the position of first connector;The connecting plate lower surface is fixed with the connecting rod arranged obliquely;Can make photovoltaic panel body automatically track solar direct angle, since it uses fluid as transmission medium, not only can the driving force provided by motor be directly transmitted to multiple photovoltaic panel bodies, avoid energy loss in motor transmission process, slow down motor transmission pressure, still have better transmission capacity when large-scale photovoltaic system is arranged, also increase the randomness of arrangement, the degree of dependence on environment is lower, safety is better, equipment cost is also lower, reach the effect of open source and save money.

Description

Technical Field

[0001] The present 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, also known as photovoltaics, is mainly composed of solar photovoltaic panels. It can use the photovoltaic effect to convert solar energy into direct current electricity. It is a clean and renewable energy source. 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 the driving source. The driving force provided by the motor is used in conjunction with the driving gear and the driven gear to drive the photovoltaic panels to rotate, and then the connecting plate is 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 driving force for the rotation of 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 driving force for the rotation of 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 during the transmission process. Not only can the generated driving force not be fully utilized, resulting in energy waste, but it also increases the difficulty of motor driving. When the scale of the photovoltaic panel layout is larger, the motor transmission effect is worse, which is easy to cause 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:

[0008] A solar photovoltaic panel capable of automatically tracking the sun, comprising a plurality of photovoltaic panel bodies; characterized in that a connecting plate is fixed to the middle portion of the lower surface of the photovoltaic panel body along its length; a support rod is rotatably connected to the middle portion of the lower surface of the connecting plate; a first connector is fixed to the upper portion of the support rod; and a first hinge block is fixed to a position of the connecting plate corresponding to the first connector.

[0009] The lower surface of the connecting plate is fixedly connected to an obliquely arranged connecting rod; the upper and middle parts of the side surfaces of the support rods are provided with evenly distributed sockets; a first hollow tube is provided on the side of the connecting plate close to the trough body; the bottom of the first hollow tube is fixedly connected to a second hinge block;

[0010] A first piston is slidably disposed inside the first hollow tube, and the first piston divides the interior space of the first hollow tube into two upper and lower spaces; 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 extends to the top of the first hollow tube; a second connector is fixedly connected to the upper end of the sliding rod;

[0011] The first hollow tube is provided with a driving assembly, which includes a first through hole provided at the lower portion of the first hollow tube; the first through hole is connected to a first shunt pipe;

[0012] The first hollow tube and the pipe connected thereto are filled with liquid or gas.

[0013] Preferably, the driving assembly further comprises a second through hole provided on the upper portion of the first hollow tube; a second shunt pipe is provided in communication with the second through hole.

[0014] Preferably, multiple first diversion tubes are connected to a first main tube; multiple second diversion tubes are connected to a second main tube; a second hollow tube is located beside the first main tube and the second main tube, and the first main tube and the second main tube are respectively connected to the two ends of the second hollow tube; a second piston is slidably arranged inside the second hollow tube.

[0015] Preferably, the center thread of the second piston is 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 fixed inside the hollow tube, and the limit rod passes through the second piston.

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

[0017] Preferably, the lower end of the connecting rod is a circular structure with double-sided protrusions.

[0018] 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.

[0019] Preferably, the drive assembly further comprises an air storage tank fixedly arranged beside one of the support rods; the first main flow pipe is connected to the interior of the air storage tank; and a throttle valve is installed at the connection between the first main flow pipe and the air storage tank.

[0020] Preferably, the surface of the gas storage tank is painted with black paint.

[0021] Preferably, the first hollow tube and the pipe connected thereto are filled with gas.

[0022] Beneficial effects of the present invention:

[0023] 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. The force exerted by the fluid on the first piston is used 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 and reducing the motor transmission pressure, but also has good transmission capacity when the photovoltaic system is deployed on a large scale, and also increases the randomness of the deployment, has a lower degree of dependence on the environment, is safer, and has lower equipment costs, achieving the effect of increasing revenue and reducing expenditure.

[0024] 2) The present invention utilizes a black-painted gas tank and a throttle valve to absorb heat from the sun. The gas expands during the day using the principle of thermal expansion and contraction, and the throttle valve acts to push the first piston to move, thereby driving the photovoltaic panel to automatically track the angle of direct sunlight. At night, the gas contracts, resetting the photovoltaic panel. Since the photovoltaic panel also utilizes solar energy to drive its rotation, energy loss is reduced and the amount of electricity fed into the grid is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention;

[0027] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0028] Figure 3 is a cross-sectional view of embodiment 1 of the present invention;

[0029] Figure 4 yes Figure 3A partial enlarged view of point B in the middle;

[0030] Figure 5 yes Figure 3 A partial enlarged view of point C in the middle

[0031] Figure 6 Schematic diagram of the structure of the first connector in Embodiment 1 and Embodiment 2 of the present invention;

[0032] Figure 7 This is a schematic diagram of the overall structure of the second embodiment of the present invention;

[0033] Figure 8 It is a side view of the second embodiment of the present invention.

[0034] 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 pipe; 161. second main pipe; 162. second hollow tube; 163. screw rod; 164. second piston; 165. limit rod; 166. motor; 167. cable management hole; 17. gas tank; 171. throttle valve. DETAILED DESCRIPTION

[0035] 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 embodiments described 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figure 1 、 Figure 2 、 Figure 3 as well as Figure 6 As shown, a solar photovoltaic panel with automatic sun tracking includes multiple photovoltaic panel bodies 2; a connecting plate 3 is fixed to the middle of the lower surface of the photovoltaic panel body 2 along the length direction by bolts; the middle of the lower surface of the connecting plate 3 is rotatably connected to a support rod 1; a first connecting head 5 is fixed to the upper part of the support rod 1; a first hinge block 4 is fixed 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 by pins.

[0037] 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 around the first hinge block 4 at any angle, playing the role of supporting and limiting the photovoltaic panel body 2 .

[0038] The lower surface of the connecting plate 3 is fixedly connected to an obliquely arranged connecting rod 6, the lower end of which is a double-sided raised circular structure; a groove 9 is provided on the upper part of the support rod 1 near the connecting rod 6; and evenly distributed sockets 10 are provided on the side of the support rod 1 corresponding to the position of the groove 9; a first hollow tube 7 is provided on the side of the connecting plate 3 near the groove 9.

[0039] A second hinge block 11 is fixed 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;

[0040] Please refer again Figure 3 and Figure 4 As shown, a first piston 12 is slidingly provided 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.

[0041] 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 angle of the photovoltaic panel body 2 at the top of the support rod 1 can be rotated by moving the sliding rod 13 inside the first hollow tube 7, and then targeted rotation can be performed when the angle of sunlight changes.

[0042] Please refer again Figure 3 and Figure 5 As shown, a first through hole 14 is provided at the lower part of the first hollow tube 7, and a second through hole 15 is provided at the upper part; the first through hole 14 is connected to a first diversion tube 141; the second through hole 15 is connected to a second diversion tube 151; a wire management hole 167 is provided at the lower part 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 diversion tube 141 and the second diversion tube 151 to be inserted and fixed.

[0043] 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.

[0044] Please refer again Figure 1 and Figure 5As shown, a plurality of first shunt pipes 141 are connected to a first main pipe 16; a plurality of second shunt pipes 151 are connected to a second main pipe 161; a second hollow pipe 162 is provided beside the first main pipe 16 and the second main pipe 161, and the first main pipe 16 and the second main pipe 161 are connected to both ends of the second hollow pipe 162 respectively;

[0045] A second piston 164 is slidingly provided 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 extends to 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 limiting rod 165 connecting the two ends is also fixed inside the hollow tube, and the limiting rod 165 extends 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.

[0046] The space inside the second hollow tube 162 is divided into two spaces on the left and right by the setting of the second piston 164. At this time, since the first main flow tube 16 and the second main flow 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 main flow tube 16, the second main flow tube 161, the first diversion tube 141, the second diversion 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.

[0047] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in actual process is described in detail below:

[0048] 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 sockets 10, and then use the second connector 8 and the connecting rod 6 to connect the photovoltaic panel body 2 to the sliding rod 13 inside the first hollow tube 7 to complete the installation and fixation of the photovoltaic panel;

[0049] Then, connect each first branch pipe 141 to the first main pipe 16, and each second branch pipe 151 to the second main pipe 161. Then, connect the first main pipe 16 and the second main pipe 161 to the two ends of the second hollow pipe 162 respectively, and fill them with liquid to occupy all the space inside the pipes. This completes the installation and fixation of the pipes.

[0050] After that, when it is officially put into operation, the rotation timing or rotation speed of the motor 166 is controlled according to the change of the height of the sun over time in different seasons. The motor 166 drives the screw rod 163 to rotate, and the second piston 164 is forced to move inside the second hollow tube 162 under the cooperation of the screw rod 163 and the limit rod 165. At this time, since all the pipes are filled with liquid, the liquid flows under the force of the second piston 164, and then the first piston 12 inside the first hollow tube 7 is moved. Then, through the cooperation of each first piston 12 or the corresponding sliding rod 13, the angle of all photovoltaic panel bodies 2 is changed, so that the photovoltaic panels can achieve the purpose of automatically tracking the angle of solar radiation around the clock.

[0051] By cooperating with 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. 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 with 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 from a distance, has a lower degree of dependence on the environment, and is safer.

[0052] 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 output efficiency of energy, reduce the consumption of the motor 166, and thus reduce energy loss.

[0053] Example 2: Please refer to Figure 7 and Figure 8 As shown, an air tank 17 is fixedly installed next to one of the support rods 1. The surface of the air tank 17 is painted with black paint. The first main pipe 16 is connected to the inside of the air tank 17; a throttle valve 171 is installed at the connection between the first main pipe 16 and the air tank 17.

[0054] During actual 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 formal operation, the gas cylinder is irradiated with sunlight, and the black-coated gas cylinder absorbs more heat, causing the gas inside the gas cylinder to expand. 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 interior of each first hollow pipe 7 at a fixed flow rate and fixed pressure according to the different seasonal sun's trajectory, and then compresses the corresponding The first piston 12 moves, thereby controlling 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, and the gas inside the gas tank 17 gradually shrinks. 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 it reabsorbs the heat brought by the sunlight the next day. 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 improving the grid-connected power of photovoltaic power generation.

[0055] It is worth noting here that: since gas is more prone to thermal expansion and contraction, when using the combination 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, provide more sufficient energy for the rotation of the photovoltaic panel body 2, and provide a faster speed for the resetting of the photovoltaic panel body 2.

[0056] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0057] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the 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 to the middle of the lower surface of the photovoltaic panel body (2) along the length direction; the middle of the lower surface of the connecting plate (3) is rotatably connected to the support rod (1); a first connecting head (5) is fixed to the upper part of the support rod (1); a first hinge block (4) is fixed 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 upper middle portion of the side surface of the support rod (1) is provided with evenly distributed sockets (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 portion of the first hollow tube (7); the first through hole (14) is connected to a first shunt tube (141); the driving assembly further comprises a second through hole (15) provided at the upper portion of the first hollow tube (7); the second through hole (15) is connected to a second shunt tube (151); A first piston (12) is slidably provided 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 upper part 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; A plurality of the first shunt pipes (141) are connected to a first main pipe (16); a plurality of the second shunt pipes (151) are connected to a second main pipe (161); a second hollow pipe (162) is provided beside the first main pipe (16) and the second main pipe (161); the first main pipe (16) and the second main pipe (161) are respectively connected to two ends of the second hollow pipe (162); a second piston (164) is slidably provided inside the second hollow pipe (162); 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 limiting rod (165) connecting the two ends is also fixed inside the hollow tube, and the limiting rod (165) passes through the second piston (164); The lower part of the first hollow tube is rotatably connected to the support rod through the second hinge block, and the first hollow tube is rotatably connected to the connecting rod through the second connector. Since the connecting rod is connected to the photovoltaic panel body, the angle of the photovoltaic panel body on the top of the support rod is rotated by the movement of the sliding rod inside the first hollow tube. Injecting liquid into the first shunt pipe causes the first piston to slide upward inside the first hollow tube, thereby causing the slide rod to slide upward, and further causing the connecting rod to apply force to the photovoltaic panel body, causing the photovoltaic panel body to rotate; Similarly, by injecting liquid into the second shunt pipe, the photovoltaic panel body is rotated in the opposite direction; According to the change in the height of the sun over time at different times, the rotation timing or rotation speed of the motor is controlled, so that the motor drives the screw to rotate, and the second piston is forced to move inside the second hollow tube under the cooperation of the screw and the limit rod. At this time, since all the pipes are filled with liquid, the liquid flows under the compulsion of the second piston, thereby causing the first piston inside the first hollow tube to move. Then, through the cooperation of each first piston or the corresponding sliding rod, the angle of all photovoltaic panels is changed, so that the photovoltaic panels can achieve the purpose of automatically tracking the angle of solar radiation around the clock.

2. The solar photovoltaic panel with automatic sun tracking according to claim 1, characterized in that: The first hollow tube (7) and the pipe connected thereto are filled with liquid.

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

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

5. The solar photovoltaic panel with automatic sun tracking 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).

6. The solar photovoltaic panel capable of automatically tracking the sun according to claim 5, characterized in that: The surface of the gas storage tank (17) is painted with black paint.

7. The automatic sun-tracking solar photovoltaic panel according to claim 5, characterized in that: The first hollow tube (7) and the pipe connected thereto are filled with gas.

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