Solar photovoltaic support and control method

Abstract

The invention discloses a solar photovoltaic support and a control method, and relates to the technical field of photovoltaic equipment. Comprising two supporting seats, a supporting table is arranged on the tops of the supporting seats, an angle shaking device is arranged on the top of the supporting table, a fixing plate is fixed to the top end of the angle shaking device, a photovoltaic panel is fixed to the top end of a connecting frame, and the connecting frame is fixed to the fixing plate. The device is provided with the angle shaking device and the spraying device, liquid sprayed by the spray heads divides square accumulated snow on the top of the photovoltaic panel into four triangular accumulated snow pieces, the adhesion force of the accumulated snow can be effectively reduced, and finally, under shaking of the angle shaking device, the accumulated snow is rapidly separated from the photovoltaic panel under centrifugal force.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic equipment, and specifically provides a solar photovoltaic bracket and a control method therefor. Background Art

[0002] A photovoltaic panel assembly is a power generation device that generates direct current when exposed to sunlight, and is composed of solid photovoltaic cells made almost entirely of semiconductor materials. When installing a photovoltaic panel, a bracket is required for support and loading so that the photovoltaic panel can stand on the ground.

[0003] Chinese invention patent, application publication number CN118100763A discloses an adjustable installation solar photovoltaic bracket device, which relates to the field of photovoltaic equipment. It can adjust the mounting frame and the photovoltaic panel assembly to any angle within the corresponding adjustment range, and thus can adjust the photovoltaic panel assembly to the angle facing the sun directly, improving the power generation efficiency of the photovoltaic panel assembly.

[0004] Chinese invention patent, application publication number CN113714238A discloses a photovoltaic panel cleaning device convenient for automatic snow removal, which solves the problems of low snow removal efficiency in the existing snow removal methods for photovoltaic panels, the snow cannot be easily scraped off the photovoltaic panels, the ice layer on the photovoltaic panels cannot be effectively removed, and it is easy to damage the photovoltaic panels.

[0005] A photovoltaic carport is an innovative facility that combines solar photovoltaic power generation technology with a parking shed, with multiple functions such as shading and rain protection, power generation and energy storage, and energy conservation and environmental protection. In areas with heavy snowfall, to improve the power generation efficiency and prevent the photovoltaic bracket from collapsing due to excessive snow accumulation on the photovoltaic panel, it is necessary to clean the snow on the top of the photovoltaic panel. Generally, the existing photovoltaic brackets do not have the function of snow cleaning. Even if some photovoltaic brackets have the function of snow cleaning, a snow cleaning device is separately provided on the top of the photovoltaic panel. This not only increases the overall weight of the photovoltaic bracket, thus affecting the use safety of the photovoltaic bracket, but also the separately provided snow cleaning device may block the sunlight, thereby reducing the power generation efficiency of the photovoltaic panel. Summary of the Invention

[0006] The purpose of the present invention is to provide a solar photovoltaic bracket and a control method therefor to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A solar photovoltaic bracket and a control method therefor, including two support seats, a support platform is arranged on the top of the support seat, an angle shaking device is arranged on the top of the support platform, a fixing plate is fixed at the top of the angle shaking device, the photovoltaic panel is fixed at the top of the connecting frame, and the connecting frame is fixed to the fixing plate; Drive the connecting frame and the photovoltaic panel to swing through the angle shaking device; Spraying devices are provided at the top ends of two corners on the same side of the connecting frame. Among them, the spraying device includes a nozzle that can rotate in the elevation direction and a liquid inlet pipe fixedly connected to the nozzle. The liquid inlet pipe is fixedly connected to the liquid storage tank, and a liquid pump is connected to the pipe body of the liquid inlet pipe; Through the rotation of the nozzle, the liquid sprayed by the nozzle at one corner of the connecting frame can extend to the opposite corner of the connecting frame, thereby dividing the square snow accumulation on the top of the photovoltaic panel into four triangular snow accumulations.

[0008] Furthermore, the angle shaking device includes a driving member, two vertical plates and a driving shaft. A connecting shaft is connected to the plate body of the vertical plate. A first bearing is connected to one side of the connecting shaft. A fixing rod is fixed to the bottom end of the fixing plate. The extension lines of the central axes of the driving shaft and the fixing rod intersect. A fixing shaft is connected to the rod body of the fixing rod. Second bearings are connected to both sides of the fixing shaft; Among them, the connecting shaft and the fixing shaft are respectively fixed to the inner rings of the first bearing and the second bearing; An arc-shaped rod is fixed between the outer rings of adjacent first bearings and second bearings; A connecting rod is fixed to the bottom end of the fixing rod, and a connecting block is fixed to one side of the top of the driving shaft. The connecting rod is connected to the connecting block; The driving shaft is driven to rotate by the driving member.

[0009] Furthermore, the spraying device further includes a vertical block. A side groove is opened at the top of the vertical block. An activity roller is movably connected to the outside of the side groove through a first horizontal shaft. The nozzle is fixed to the side surface of the activity roller; A semi-circular toothed plate is formed on the back of the activity roller. An electric telescopic rod is fixed to the top of the vertical block. A second toothed plate is fixed to the telescopic end of the electric telescopic rod. The second toothed plate meshes with the semi-circular toothed plate.

[0010] Furthermore, a horizontal shaking device is provided at the bottom of the support platform. The connecting frame and the photovoltaic panel are driven by the horizontal shaking device to perform horizontal shaking along the length direction of the support platform.

[0011] Furthermore, the horizontal shaking device includes a through groove opened at the top of the support platform. An activity plate is arranged in the through groove. An activity space is formed between the two sides of the activity plate and the side walls of the through groove. The angle shaking device is arranged on the top of the activity plate; Multiple groups of first support frames and second support frames are respectively fixed to the bottom end of the activity plate and the bottom end of the support platform. An activity rod is fixed to the bottom of the first support frame. The activity rod is movably inserted into the second support frame; The ends of multiple movable rods are fixed with connecting plates. A second motor is fixed at the top end of the support platform. A roller is movably connected to the support platform. The output end of the second motor is fixed to the end of the roller. A turntable is fixed to the bottom end of the roller. Hinge shafts are fixed at non-central positions at the bottom end of the turntable and on the plate body of the connecting plate. A hinge rod is movably connected between the two hinge shafts.

[0012] Furthermore, a vertical rod is movably connected to the top of the support seat through a second horizontal shaft. A hydraulic cylinder is arranged between the vertical rod and the support seat. When the hydraulic cylinder expands and contracts, it drives the vertical rod to rotate around the second horizontal shaft.

[0013] Furthermore, a positioning component is arranged between the support seat and the vertical rod; The positioning component includes an annular plate fixed to the vertical rod. The annular plate is movably inserted into the top of the support seat. An external gear ring is arranged at the bottom of the annular plate; At least two first guide rods are fixed to the top of the support seat. A first toothed plate is movably inserted on the rod body of the first guide rod. The first toothed plate meshes with the external gear ring; A U-shaped block is fixed to the side of the support seat. An electromagnet is fixed inside the U-shaped block. A second guide rod is fixed between the U-shaped block and the support seat. A magnetically permeable block is movably inserted on the rod body of the second guide rod. A spring is fixed between the magnetically permeable block and the side of the support seat; A plurality of insertion rods movably inserted into the support seat are fixed to the side of the magnetically permeable block. A plurality of insertion holes are formed in the first toothed plate. The insertion rods are adapted to the insertion holes.

[0014] This solution also discloses a control method for a solar photovoltaic bracket, which is applied to a solar photovoltaic bracket and includes a controller and a wind direction and wind force sensor, and comprises the following steps: Step 1: When it is necessary to clean the snow accumulated on the top of the photovoltaic panel, the controller controls the liquid pump and the electric telescopic rod to start. The hot water or brine contained in the liquid storage tank is sprayed out through the nozzle. The electric telescopic rod drives the nozzle to move reciprocally. The liquid sprayed out by the nozzle at a corner of the connecting frame can extend to the opposite corner of the connecting frame, so as to divide the square snow on the top of the photovoltaic panel into four triangular snow masses. In addition, the sprayed liquid can also quickly melt the snow in contact with the photovoltaic panel; Step 2: The wind direction and wind force sensor monitors the external wind force. When the wind force is less than the first set value, the controller controls the first motor to start. When the drive shaft rotates, it drives the connecting frame and the photovoltaic panel to sway at a certain swing angle. Under the action of centrifugal force, the divided snow quickly detaches from the photovoltaic panel; When the wind force is greater than the first set value, the controller controls the second motor to start. When the turntable rotates, it pushes the movable rod through the hinge rod, so as to realize the horizontal sway of the connecting frame and the photovoltaic panel along the length direction of the support platform. Since an angle is formed between the photovoltaic panel and the ground, the divided snow detaches from the photovoltaic panel under the action of gravity.

[0015] Furthermore, the following steps are further included: The wind force and wind direction outside are monitored by a wind direction and wind force sensor. When the wind force is greater than the second set value, the controller controls the first motor to start and adjusts the tilt direction of the photovoltaic panel so that the slope of the photovoltaic panel faces the wind direction.

[0016] Furthermore, a solar tracking controller is further included, and the following steps are further included: Every 0.5 - 1 hour, based on the data of the solar tracking controller, the controller controls the elongation of the hydraulic cylinder so that the photovoltaic panel faces the sun.

[0017] Compared with the prior art, the beneficial effects of the present invention are: In the solar photovoltaic support and control method, an angle shaking device and a spraying device are provided. The liquid sprayed by the nozzle divides the square snow on the top of the photovoltaic panel into four triangular snow accumulations, which can effectively reduce its adhesion force. Finally, under the shaking of the angle shaking device, the snow quickly detaches from the photovoltaic panel under the centrifugal force. In the photovoltaic support of this solution, there is no need to separately set a snow cleaning device on the top of the photovoltaic panel, which reduces the overall weight of the photovoltaic support and improves the use safety of the photovoltaic support. In addition, the spraying device is located outside the photovoltaic panel, and the shading area formed on the photovoltaic panel is small and will not affect the power generation efficiency of the photovoltaic panel.

[0018] At the same time, a horizontal shaking device is also provided, and different shaking methods can be selected according to different wind force intensities, thereby improving the snow removal safety of the photovoltaic support.

[0019] In addition, the photovoltaic support in this solution can adjust the tilt direction of the photovoltaic panel so that the slope of the photovoltaic panel faces the wind direction, reducing the wind pressure acting on the back of the photovoltaic panel and preventing the connecting frame and the photovoltaic panel from being overturned, thereby improving the stability and use safety of the photovoltaic support.

[0020] In addition, a hydraulic cylinder and a positioning component are also provided. Based on the data of the solar tracking controller, the controller controls the elongation of the hydraulic cylinder so that the photovoltaic panel faces the sun, thereby improving the power generation efficiency. After the elongation of the hydraulic cylinder is adjusted or the system is powered off, the vertical rod and the support seat are fixed by the positioning component, thereby being able to improve the stability of the photovoltaic panel, prevent the hydraulic cylinder from contracting after a power outage, and improve the service life of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the left axonometric view of the present invention; Figure 2 is the bottom view of the present invention; Figure 3 is the detailed view of the positioning component of the present invention; Figure 4 This is the connection diagram between the connecting frame and the support platform of the present invention; Figure 5 This is the detailed diagram of the angle shaking device of the present invention; Figure 6 This is the detailed diagram of the horizontal shaking device of the present invention; Figure 7 This is the half-sectional view of the spraying device of the present invention; Figure 8 This is the schematic diagram of the wind direction acting on one side of the photovoltaic panel of the present invention; Figure 9 This is the schematic diagram of the liquid spraying direction of the spraying device of the present invention.

[0022] In the figure: 1, support base; 2, vertical rod; 3, hydraulic cylinder; 4, positioning component; 401, annular plate; 402, first toothed plate; 403, first guide rod; 404, U-shaped block; 405, magnetic conduction block; 406, second guide rod; 407, spring; 408, insertion rod; 409, electromagnet; 410, external toothed ring; 5, support platform; 501, side plate; 6, angle shaking device; 601, vertical plate; 602, fixed rod; 603, fixed shaft; 604, first bearing; 605, second bearing; 606, driving shaft; 607, connecting block; 608, arc-shaped rod; 7, connecting frame; 8, photovoltaic panel; 9, spraying device; 901, vertical block; 902, movable roller; 903, nozzle; 904, liquid inlet pipe; 905, semi-circular toothed plate; 906, second toothed plate; 907, electric telescopic rod; 10, fixed plate; 111, worm; 112, worm gear; 121, movable plate; 122, first support frame; 123, second support frame; 124, movable rod; 125, turntable; 126, articulated rod. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] The photovoltaic support in this solution is applied in a photovoltaic carport, especially suitable for the photovoltaic carport of a family house, and is used to support the photovoltaic panel of the photovoltaic carport.

[0025] Embodiment 1: As Figures 1-2 and Figures 4-7As shown in the figure, the present invention provides a technical solution: a solar photovoltaic bracket, including two support seats 1, a connecting frame 7 and a photovoltaic panel 8. The photovoltaic panel 8 is fixed to the top of the connecting frame 7. The two support seats 1 are fixed to the ground. A vehicle is parked between the two support seats 1. A support platform 5 is arranged on the top of the support seat 1. To improve the stability of the support platform 5, side plates 501 that slope downward are fixed on both sides of the support platform 5. A stable triangular structure is formed between the support platform 5 and the side plates 501. An angle swaying device 6 is arranged on the top of the support platform 5. The angle swaying device 6 and the connecting frame 7 are fixed to each other through a fixing plate 10, and the fixing plate 10 is located in the middle of the bottom end of the connecting frame 7.

[0026] The angle swaying device 6 drives the connecting frame 7 and the photovoltaic panel 8 to swing.

[0027] Specifically, as Figure 2 、 Figures 4-6 shown, the angle swaying device 6 includes a driving member, two vertical plates 601 and a driving shaft 606. Connecting shafts are fixedly connected to the plates of the two vertical plates 601. The shafts of the connecting shafts on the opposite sides are fixed to the inner rings of the first bearings 604. A fixing rod 602 is fixed to the bottom end of the fixing plate 10. The extension lines of the central axes of the driving shaft 606 and the fixing rod 602 intersect, that is, the driving shaft 606 and the fixing rod 602 are always inclined. A fixing shaft 603 is fixedly connected or movably connected to the rod body of the fixing rod 602. The inner rings of the second bearings 605 are fixed to both sides of the fixing shaft 603. An arc-shaped rod 608 is fixed between the outer rings of the adjacent first bearings 604 and the second bearings 605, and the centers of the arcs of the four arc-shaped rods 608 coincide. A connecting rod is fixed to the bottom end of the fixing rod 602. A connecting block 607 is fixed to one side of the top of the driving shaft 606, and the connecting rod is connected to the connecting block 607. It should be noted that the top end surface of the connecting block 607 is flush with the bottom end surface of the connecting rod. In this solution, the driving member includes a first motor, a worm 111 and a worm gear 112. The output end of the first motor is fixed to the end of the worm 111. The worm gear 112 is fixedly connected to the bottom shaft body of the driving shaft 606, and the worm 111 is meshed with the worm gear 112. Since there is a self-locking property between the worm 111 and the worm gear 112, it can prevent the position of the photovoltaic panel 8 from shifting due to external wind pressure or vibration applied to the connecting frame 7.

[0028] Specifically, when the controller controls the first motor to start, the worm 111 drives the worm gear 112 and the driving shaft 606 to rotate, drives the connecting rod and the fixing rod 602 to form an angle rotation with the support platform 5 through the connecting block 607, and further realizes the swaying of the connecting frame 7 and the photovoltaic panel 8 at a certain swinging angle. As Figure 5 shown, when the driving shaft 606 and the connecting block 607 are parallel to the width direction of the support platform 5, the state diagram of the connecting frame 7 and the photovoltaic panel 8 is Figure 1As shown Figure 8 is Figure 1 a side view of the photovoltaic support in [reference], at this time, the angles formed by the connecting frame 7 and the photovoltaic panel 8 with the ground are α.

[0029] As Figure 1 and Figure 7 shown, the spraying device 9 is arranged at the top corners on the same side of the connecting frame 7. To minimize the projection of the spraying device 9 on the photovoltaic panel 8, the spraying device 9 is located outside the photovoltaic panel 8. In this solution, the spraying device 9 includes a vertical block 901, a nozzle 903, and a liquid inlet pipe 904 fixedly connected to the nozzle 903. The liquid inlet pipe 904 is fixedly connected to the liquid storage tank. A liquid pump is connected to the pipe body of the liquid inlet pipe 904. Some heat preservation or anti-freezing measures in the prior art can be used to heat-insulate or anti-freeze the liquid pump, the liquid inlet pipe 904, and the nozzle 903. The liquid storage tank stores brine for accelerating snow melting or antifreeze. Additionally, a heating device can be arranged in the liquid storage tank to heat the solution stored in the liquid storage tank, thereby accelerating snow melting. A side groove is formed at the top of the vertical block 901. The outside of the side groove is movably connected to a movable roller 902 through a first horizontal shaft. The nozzle 903 is fixed to the side of the movable roller 902. A semi-circular toothed plate 905 is formed on the back of the movable roller 902. An electric telescopic rod 907 is fixed to the top of the vertical block 901. The telescopic end of the electric telescopic rod 907 is fixed with a second toothed plate 906, and the second toothed plate 906 meshes with the semi-circular toothed plate 905. After the electric telescopic rod 907 works, it can drive the movable roller 902 to rotate, thereby driving the nozzle 903 to adjust the direction in the elevation angle direction.

[0030] As Figure 9 shown, through the rotation of the nozzle 903, the liquid sprayed by the nozzle 903 at one corner of the connecting frame 7 can extend to the opposite corner of the connecting frame 7, thereby dividing the square snow accumulation on the top of the photovoltaic panel 8 into four triangular snow accumulations. The reason for arranging the spraying device 9 is that since the area of the square snow accumulation is large and its adhesion to the photovoltaic panel 8 is large, dividing the square snow accumulation into multiple triangular snow accumulation blocks and spraying water can effectively reduce its adhesion force, facilitating the rapid detachment of the snow from the photovoltaic panel 8 under the centrifugal force when the angle shaking device 6 shakes.

[0031] Embodiment 2: On the basis of Embodiment 1, a horizontal shaking device is arranged at the bottom of the support platform 5 to drive the connecting frame 7 and the photovoltaic panel 8 to shake horizontally along the length direction of the support platform 5. The reason for this arrangement is that when the angle shaking device 6 works, the photovoltaic panel 8 forms an angle with the ground. To reduce the wind pressure acting on the back of the photovoltaic panel 8 and prevent the connecting frame 7 and the photovoltaic panel 8 from being overturned, the stability and use safety of the photovoltaic support are thus improved.

[0032] Specifically, asFigure 6 As shown in the figure, the horizontal shaking device includes a through groove formed at the top of the support table 5. An active plate 121 is arranged in the through groove, and an active space is formed between both sides of the active plate 121 and the side walls of the through groove. The angle shaking device 6 is arranged on the top of the active plate 121. Two groups of symmetrically arranged first support frames 122 and second support frames 123 are respectively fixed at the bottom end of the active plate 121 and the bottom end of the support table 5. An active rod 124 is fixed at the bottom of the first support frame 122, and the active rod 124 is movably inserted into the second support frame 123. Connecting plates are fixed at both ends of the two active rods 124. A second motor is fixed at the top end of the support table 5. The second motor is preferably a servo motor. A roller is movably connected to the support table 5. The output end of the second motor is fixed to the end of the roller. A turntable 125 is fixed at the bottom end of the roller. Hinge shafts are respectively fixed at the non-central position of the bottom end of the turntable 125 and the plate body of one of the connecting plates. A hinge rod 126 is arranged between the two hinge shafts, and both ends of the hinge rod 126 are movably connected to the two hinge shafts. In this way, when the second motor is started, the roller drives the turntable 125 to rotate, and the left and right movement of the active rod 124 is realized under the push of the hinge rod 126, so as to realize the left and right shaking of the active plate 121, the connecting frame 7 and the photovoltaic panel 8. Since an angle is formed between the photovoltaic panel 8 and the ground, the snow separated from the photovoltaic panel 8 falls off under the action of gravity.

[0033] It should be noted that in this solution, the snow removal method using the angle shaking device 6 in Embodiment 1 is preferably used.

[0034] Embodiment 3: On the basis of Embodiment 1 or Embodiment 2, a vertical rod 2 is movably connected to the top of the support base 1 through a second horizontal axis. A hydraulic cylinder 3 is arranged between the vertical rod 2 and the support base 1. In this way, when the hydraulic cylinder 3 expands and contracts, it drives the vertical rod 2 to rotate around the second horizontal axis, so as to realize the angle adjustment of the photovoltaic panel 8. Specifically, a solar tracking controller is further arranged on the top of the photovoltaic carport. Every 0.5 - 1 hour, based on the data of the solar tracking controller, the elongation of the hydraulic cylinder 3 is controlled by the controller to make the photovoltaic panel 8 face the sun.

[0035] Embodiment 4: To improve the stability of the photovoltaic panel 8, prevent the hydraulic cylinder 3 from contracting after a power outage, and improve the service life of the hydraulic cylinder 3, a positioning component 4 is arranged between the support base 1 and the vertical rod 2. Specifically, as Figure 3 ​As shown in the figure, the positioning component 4 includes an annular plate 401 fixed to the vertical rod 2. An external gear ring 410 is provided at the bottom of the annular plate 401. A slot is formed at the top of the support base 1. The annular plate 401 is movably inserted into the slot at the top of the support base 1. At least two first guide rods 403 are fixed to the top of the support base 1. A first toothed plate 402 meshing with the external gear ring 410 is movably inserted on the rod body of the first guide rod 403. In this way, the first guide rod 403 supports and guides the first toothed plate 402. A U-shaped block 404 is fixed to the side of the support base 1. An electromagnet 409 is fixed inside the U-shaped block 404. A second guide rod 406 is fixed between the U-shaped block 404 and the support base 1. The second guide rod 406 is located on both sides of the electromagnet 409. A magnetic conductive block 405 is movably inserted on the rod body of the second guide rod 406. A spring 407 is fixed between the magnetic conductive block 405 and the side of the support base 1. The second guide rod 406 is located inside the spiral coil of the spring 407. The energized electromagnet 409 magnetically attracts the electromagnet 409. A plurality of insertion rods 408 movably inserted into the support base 1 are fixed to the side of the magnetic conductive block 405. A number of jacks not less than the number of the insertion rods 408 are formed on the first toothed plate 402. The insertion rods 408 are adapted to the jacks.

[0036] In this way, when the light-facing angle of the photovoltaic panel 8 needs to be adjusted, the controller controls the electromagnet 409 to be energized and magnetized. Under the action of the magnetic attraction force, the magnetic conductive block 405 drives the insertion rod 408 to move towards the electromagnet 409. When the electromagnet 409 and the magnetic conductive block 405 come into contact, the insertion rod 408 disengages from the jack on the first toothed plate 402. The controller controls the hydraulic cylinder 3 to start to adjust the light-facing angle of the photovoltaic panel 8. When the hydraulic cylinder 3 expands and contracts, it drives the first toothed plate 402 to move along the rod body direction of the first guide rod 403 through the external gear ring 410. When the light-facing angle adjustment is completed or power is suddenly cut off, the electromagnet 409 is de-energized and demagnetized. Under the restoring force of the spring 407, the insertion rod 408 is inserted into the jack on the first toothed plate 402 to realize the positioning of the first toothed plate 402, thereby realizing the positioning of the annular plate 401 and the vertical rod 2.

[0037] This solution also discloses a control method for a solar photovoltaic bracket, which is applied to a solar photovoltaic bracket and includes a controller and a wind direction and wind force sensor, and includes the following steps: Step 1: When it is necessary to clean the snow accumulated on the top of the photovoltaic panel 8, the controller controls the liquid pump and the electric telescopic rod 907 to start. The solution contained in the liquid storage tank is sprayed out through the nozzle 903. The electric telescopic rod 907 drives the nozzle 903 to move reciprocally. The liquid sprayed out by the nozzle 903 at a corner of the connecting frame 7 can extend to the opposite corner of the connecting frame 7, so as to divide the square snow on the top of the photovoltaic panel 8 into four triangular snow masses. In addition, the sprayed liquid can also quickly melt the snow in contact with the photovoltaic panel 8; Step 2: The wind direction and wind speed sensor monitors the external wind force. When the wind force is less than the first set value, for example, when the first set value of the wind force is 10.5 m / s, the controller controls the first motor to start. When the drive shaft 606 rotates, it drives the connecting frame 7 and the photovoltaic panel 8 to swing. Under the action of centrifugal force, the divided snow quickly detaches from the photovoltaic panel 8; When the wind force is greater than the first set value, the controller controls the second motor to start. When the turntable 125 rotates, it pushes the movable rod 124 through the hinge rod 126, realizing the horizontal shaking of the connecting frame 7 and the photovoltaic panel 8 along the length direction of the support table 5. Since there is an angle between the photovoltaic panel 8 and the ground, the divided snow detaches from the photovoltaic panel 8 under the action of gravity.

[0038] In addition, the control method of the solar photovoltaic bracket also includes monitoring the external wind force and wind direction through the wind direction and wind speed sensor. When the wind force is greater than the second set value, for example, when the second set value of the wind force is 15 m / s, the controller controls the first motor to start and adjusts the inclination direction of the photovoltaic panel 8 so that the slope surface of the photovoltaic panel 8 faces the wind direction. The purpose of this setting is to reduce the wind pressure acting on the back of the photovoltaic panel 8, prevent the connecting frame 7 and the photovoltaic panel 8 from being overturned, thereby improving the stability and use safety of the photovoltaic bracket. Figure 8 This is a specific schematic diagram.

[0039] In addition, the control method of the solar photovoltaic bracket also includes controlling the elongation of the hydraulic cylinder 3 by the controller every 0.5 - 1 hour based on the data of the solar tracking controller, so that the photovoltaic panel 8 faces the sun, thereby improving the power generation efficiency.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended embodiments and their equivalents.

Claims

1. A solar photovoltaic support, comprising two support seats (1), characterized in that: A support platform (5) is provided at the top of the support base (1). An angle swaying device (6) is provided at the top of the support platform (5). A fixing plate (10) is fixed at the top end of the angle swaying device (6). The photovoltaic panel (8) is fixed at the top end of the connecting frame (7), and the connecting frame (7) is fixed to the fixing plate (10). The connecting frame (7) and the photovoltaic panel (8) are driven to swing by the angle swaying device (6). Spraying devices (9) are provided at the top ends of two corners on the same side of the connecting frame (7). Among them, the spraying device (9) includes a nozzle (903) that can rotate in the elevation direction and a liquid inlet pipe (904) fixedly communicated with the nozzle (903). The liquid inlet pipe (904) is fixedly communicated with the liquid storage tank. A liquid pump is connected to the pipe body of the liquid inlet pipe (904). Through the rotation of the nozzle (903), the liquid sprayed by the nozzle (903) at one corner of the connecting frame (7) can extend to the opposite corner of the connecting frame (7), so as to divide the square snow accumulation on the top of the photovoltaic panel (8) into four triangular snow accumulations.

2. The solar photovoltaic bracket according to claim 1, characterized in that: The angle swaying device (6) includes a driving member, two vertical plates (601) and a driving shaft (606). A connecting shaft is connected to the plate body of the vertical plate (601). A first bearing (604) is connected to one side of the connecting shaft. A fixing rod (602) is fixed to the bottom end of the fixing plate (10). The extension lines of the central axes of the driving shaft (606) and the fixing rod (602) intersect. A fixing shaft (603) is connected to the rod body of the fixing rod (602). Second bearings (605) are connected to both sides of the fixing shaft (603). Among them, the connecting shaft and the fixing shaft (603) are respectively fixed to the inner rings of the first bearing (604) and the second bearing (605). An arc-shaped rod (608) is fixed between the outer rings of adjacent first bearings (604) and second bearings (605). A connecting rod is fixed to the bottom end of the fixing rod (602). A connecting block (607) is fixed to one side of the top of the driving shaft (606). The connecting rod is connected to the connecting block (607). The driving shaft (606) is driven to rotate by the driving member.

3. A solar photovoltaic bracket according to claim 1, characterized in that: The spraying device (9) further includes a vertical block (901). A side groove is formed at the top of the vertical block (901). A movable roller (902) is movably connected to the outside of the side groove through a first horizontal shaft. The nozzle (903) is fixed to the side surface of the movable roller (902). A semi-circular toothed plate (905) is formed on the back surface of the movable roller (902). An electric telescopic rod (907) is fixed to the top of the vertical block (901). A second toothed plate (906) is fixed to the telescopic end of the electric telescopic rod (907). The second toothed plate (906) meshes with the semi-circular toothed plate (905).

4. A solar photovoltaic bracket according to claim 1, characterized in that: A horizontal swaying device is provided at the bottom of the support platform (5). The connecting frame (7) and the photovoltaic panel (8) are driven to horizontally sway along the length direction of the support platform (5) by the horizontal swaying device.

5. A solar photovoltaic bracket according to claim 4, characterized in that: The horizontal shaking device includes a through groove formed at the top of the support platform (5). An activity plate (121) is arranged in the through groove. An activity space is formed between both sides of the activity plate (121) and the side walls of the through groove. The angle shaking device (6) is arranged on the top of the activity plate (121). Multiple groups of first support frames (122) and second support frames (123) are respectively fixed at the bottom ends of the activity plate (121) and the support platform (5). An activity rod (124) is fixed at the bottom of the first support frame (122). The activity rod (124) is movably inserted into the second support frame (123). Connectors are fixed at the ends of multiple activity rods (124). A second motor is fixed at the top end of the support platform (5). A roller is movably connected to the support platform (5). The output end of the second motor is fixed to the end of the roller. A turntable (125) is fixed at the bottom end of the roller. Hinge shafts are fixed at the non - central position at the bottom end of the turntable (125) and on the plate body of the connector. A hinge rod (126) is movably connected between the two hinge shafts.

6. A solar photovoltaic bracket according to claim 1, characterized in that: The top of the support base (1) is movably connected with a vertical rod (2) through a second horizontal shaft. A hydraulic cylinder (3) is arranged between the vertical rod (2) and the support base (1). When the hydraulic cylinder (3) expands and contracts, it drives the vertical rod (2) to rotate around the second horizontal shaft.

7. A solar photovoltaic bracket according to claim 6, characterized in that: A positioning component (4) is arranged between the support base (1) and the vertical rod (2); The positioning component (4) includes an annular plate (401) fixed to the vertical rod (2). The annular plate (401) is movably inserted into the top of the support base (1). An external gear ring (410) is arranged at the bottom of the annular plate (401); At least two first guide rods (403) are fixed at the top of the support base (1). A first toothed plate (402) is movably inserted on the rod body of the first guide rod (403). The first toothed plate (402) meshes with the external gear ring (410); A U - shaped block (404) is fixed to the side of the support base (1). An electromagnet (409) is fixed inside the U - shaped block (404). A second guide rod (406) is fixed between the U - shaped block (404) and the support base (1). A magnetic conductive block (405) is movably inserted on the rod body of the second guide rod (406). A spring (407) is fixed between the magnetic conductive block (405) and the side of the support base (1); Multiple insertion rods (408) movably inserted into the support base (1) are fixed to the side of the magnetic conductive block (405). Multiple insertion holes are formed on the first toothed plate (402). The insertion rods (408) are adapted to the insertion holes.

8. A control method for a solar photovoltaic support, applied to the solar photovoltaic support according to any one of claims 1-7, comprising a controller and a wind direction and wind force sensor, characterized in that, It includes the following steps: Step 1: When it is necessary to clean the snow accumulated on the top of the photovoltaic panel (8), the controller controls the liquid pump and the electric telescopic rod (907) to start. The hot water or brine contained in the liquid storage tank is sprayed out through the nozzle (903). The electric telescopic rod (907) drives the nozzle (903) to move reciprocally. The liquid sprayed out by the nozzle (903) located at a corner of the connecting frame (7) can extend to the opposite corner of the connecting frame (7), so as to divide the square snow on the top of the photovoltaic panel (8) into four triangular snow masses. In addition, the sprayed liquid can also quickly melt the snow in contact with the photovoltaic panel (8); Step 2: The wind direction and wind speed sensor monitors the external wind force. When the wind force is less than the first set value, the controller controls the first motor to start. When the drive shaft (606) rotates, it drives the connecting frame (7) and the photovoltaic panel (8) to swing. Under the action of centrifugal force, the divided snow quickly detaches from the photovoltaic panel (8). When the wind force is greater than the first set value, the controller controls the second motor to start. When the turntable (125) rotates, it pushes the movable rod (124) through the hinge rod (126), realizing the horizontal shaking of the connecting frame (7) and the photovoltaic panel (8) along the length direction of the support platform (5). Since there is an angle between the photovoltaic panel (8) and the ground, the divided snow detaches from the photovoltaic panel (8) under the action of gravity.

9. The control method of a solar photovoltaic bracket according to claim 8, characterized in that, It further includes the following steps: The wind direction and wind speed sensor monitors the external wind force and wind direction. When the wind force is greater than the second set value, the controller controls the first motor to start to adjust the inclination direction of the photovoltaic panel (8) so that the slope of the photovoltaic panel (8) faces the wind direction.

10. A control method for a solar photovoltaic bracket according to claim 8, further comprising a solar tracking controller, characterized in that, It further includes the following steps: Every 0.5 - 1 hour, based on the data of the solar tracking controller, the controller controls the elongation of the hydraulic cylinder (3) to make the photovoltaic panel (8) face the sun.

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