Distributed photovoltaic power generation panel adjustable support with automatic light chasing function

Abstract

This invention discloses an adjustable bracket for distributed photovoltaic (PV) panels with automatic light-tracking function, belonging to the field of PV power generation technology. It includes a base and a PV panel, with the PV panel located on the upper end of the base. Two symmetrically arranged fixed cylinders are fixedly connected to the upper end of the base, and each fixed cylinder has a slidingly connected lifting column. A crossbar is fixedly connected between the two lifting columns near the top. This invention utilizes the coordinated operation of an electric push rod, a rotating component, and a diagonal bracing component. In severe weather, the azimuth angle of the PV panel is adjusted so that its side edges face the wind. Then, the crossbar is lowered and the tilt angle is adjusted to zero degrees, minimizing the overturning moment of the bracket. Furthermore, the clamping component automatically clamps both sides of the PV panel after leveling, dispersing stress and preventing fatigue damage to the connectors. Simultaneously, the constraint component provides lateral support to the lifting columns after raising and lowering via cables, directly transferring lateral force to the ground foundation, reducing bending stress at the column base and preventing torsion, significantly improving the wind resistance reliability and structural lifespan of the bracket.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power generation technology, specifically to an adjustable support for distributed photovoltaic power generation panels with automatic light tracking function. Background Technology

[0002] Distributed photovoltaic (PV) power generation refers to small-scale PV power plants built near user sites, primarily for self-consumption and with surplus electricity fed into the grid. These plants are characterized by small installed capacity, dispersed layout, and localized power consumption. To improve power generation efficiency, PV mounting systems with automatic sun-tracking capabilities have emerged. These systems can automatically track the sun's position and adjust the angle of the PV panels. Among these, the inclined single-axis tracking system is a commonly used solution in the distributed PV field. The main axis of rotation of this system has a preset fixed tilt angle based on the local latitude. The PV panels rotate around this main axis to track the sun's azimuth angle. By statically optimizing the solar altitude angle response, the system can achieve an annual power generation efficiency superior to that of a horizontal single-axis system and approaching that of a dual-axis system when only tracking the azimuth angle is required. Furthermore, its structural complexity and cost are far lower than those of dual-axis tracking systems, making it widely used in distributed PV projects.

[0003] Existing tilted single-axis tracking brackets, when encountering severe weather such as strong winds, typically reduce the windward area by simply rotating the photovoltaic panels to a horizontal position. However, because the main axis of rotation of the bracket is preset with a fixed tilt angle based on the local latitude, the photovoltaic panels still maintain a certain fixed tilt angle and cannot be completely flattened. This results in the overall center of gravity of the bracket being too high, and the windward area remaining large. When the wind speed exceeds the design threshold, the overturning moment and lateral force generated by the wind load will directly act on the root of the bracket column and the transmission mechanism, causing stress concentration at the root of the column and accelerated wear of the transmission gears. After long-term use, serious consequences such as column bending deformation or even breakage and transmission mechanism jamming and failure may occur, reducing the overall service life and reliability of the bracket.

[0004] Therefore, we have made improvements and proposed an adjustable bracket for distributed photovoltaic panels with automatic light tracking function. Summary of the Invention

[0005] To address the aforementioned problems in the existing technology, the purpose of this invention is to provide an adjustable support for distributed photovoltaic power generation panels with automatic light tracking function.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows: An adjustable bracket for distributed photovoltaic power generation panels with automatic light tracking function includes a base and a photovoltaic panel. The photovoltaic panel is located at the upper end of the base. Two symmetrically arranged fixed cylinders are fixedly connected to the upper end of the base. Lifting columns are slidably connected inside the two fixed cylinders. A crossbar is fixedly connected at the upper part between the two lifting columns. A rotating component for tracking the azimuth angle of the sun is installed at the upper end of the two lifting columns. A rotating shaft is installed on the rotating component. A diagonal bracing component for optimizing the tilt angle of the photovoltaic panel is installed on the rotating shaft. The photovoltaic panel is installed on the diagonal bracing component. Clamping components for fixing the photovoltaic panel are installed on the crossbar and the base. Constraint components for providing lateral support to the lifting columns are installed on the side walls of the two lifting columns. An electric push rod is hinged at the middle of the upper end of the base. The telescopic end of the electric push rod is hinged at the middle of the lower end of the crossbar.

[0007] Preferably, the diagonal bracing assembly includes a vertical rod and a guide opening. The vertical rod is fixedly connected to the side wall of the rotating shaft, and the guide opening is opened on the rotating shaft. The vertical rod is hinged to one side of the lower end of the photovoltaic panel. A one-way screw is rotatably connected to the inner wall of the guide opening, and a guide block is slidably connected to the inner wall of the guide opening. The guide block is threaded onto the outside of the one-way screw. Connecting rods are rotatably connected to both sides of the guide block, and the upper ends of the two connecting rods are hinged to the other side of the lower end of the photovoltaic panel.

[0008] Preferably, the rotating shaft has a rotating cavity, and a worm gear and a worm are rotatably connected to the inner wall of the rotating cavity. The worm gear and the worm mesh with each other. The output end of the worm gear rotatably penetrates the inner wall of the rotating cavity and is fixedly connected to one end of a one-way screw. A transmission gear set is installed on the side wall of the rotating shaft. The transmission gear set is composed of multiple first spur gears of different diameters meshing in sequence. All of the multiple first spur gears are rotatably connected to the side wall of the rotating shaft. The output end of the smallest first spur gear rotatably penetrates the rotating shaft and is fixedly connected to one end of the worm. A first rack is fixedly connected to one side of the upper end of the base. The largest first spur gear meshes with the first rack.

[0009] Preferably, the clamping assembly includes two wedge-shaped frames, which are fixedly connected to the upper ends of the base on both sides. The inclined surfaces of the two wedge-shaped frames are directly opposite the crossbar. Two symmetrically arranged guide grooves are opened on one side of the crossbar. Sliding rods are slidably connected to the inner walls of the two guide grooves. The two sliding rods are respectively located above the inclined surfaces of the two wedge-shaped frames.

[0010] Preferably, each of the two sliding rods has a movable rod fixedly connected to its upper end, and each of the two movable rods has a set of clamping blocks fixedly connected to its side wall. The two sets of clamping blocks are symmetrically arranged, and each of the two sets of clamping blocks has a V-shaped groove on its side wall. The two sets of V-shaped grooves are symmetrically arranged, and each of the two guide grooves has a spring fixedly connected to the inner wall of the side near the electric push rod. Each of the two sliding rods is fixedly connected to one end of the two springs.

[0011] Preferably, the constraint assembly includes a second rack with teeth on both sides. The second rack is fixedly connected to one side of the upper end of the base. A mounting seat is fixedly connected to the side wall of the lifting column. Two symmetrically arranged double-cone take-up rollers are rotatably connected to the side of the mounting seat away from the crossbar.

[0012] Preferably, both of the two double-cone take-up rollers are fitted with cables, both cables are hinged to the upper end of the base, and the two cables are arranged symmetrically. A second spur gear is fixedly connected to the side of each of the two double-cone take-up rollers away from the crossbar, and the two second spur gears mesh with each other on both sides of the second rack.

[0013] Preferably, the rotating assembly includes a bearing housing and a geared motor, the bearing housing and the geared motor are respectively fixedly connected to the upper ends of the two lifting columns, one end of the rotating shaft is rotatably connected inside the bearing housing, and the output end of the geared motor is fixedly connected to one end of the rotating shaft.

[0014] Preferably, a protective shell is fixedly connected to one side of the rotating shaft, and multiple first spur gears are located inside the protective shell. The protective shell has a through-hole, and the cross-section of the through-hole is larger than the cross-section of the first rack.

[0015] Preferably, a photoelectric sensor is fixedly connected to the upper end of the photovoltaic panel, and a tilt sensor is fixedly connected to the lower end of the photovoltaic panel.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By working together with electric push rods, rotating components, and diagonal bracing components, the support structure is protected in severe weather. When encountering severe weather, the rotating components first adjust the azimuth angle of the photovoltaic panels so that the side edges of the photovoltaic panels face the wind. At this time, the lateral wind load on the support structure is greatly reduced, alleviating the stress on the support structure. Subsequently, the electric push rod drives the crossbar to descend, lowering the overall height of the photovoltaic panels to reduce the wind load moment. During the descent, the diagonal bracing components gradually reduce the tilt angle of the photovoltaic panels from the preset fixed tilt angle to zero degrees, minimizing the overall overturning moment of the support structure. The structure is simple and significantly improves the wind resistance reliability, structural life and economy of the support structure.

[0017] 2. After the photovoltaic panel is fully leveled, the clamping component automatically clamps both sides of it, transferring the stress generated by the wind load from the connection of the diagonal bracing component to the clamping block and crossbar, reducing the concentrated stress on the connector, preventing fatigue damage, and thus extending the overall life of the bracket. At the same time, the clamping block forms a vertical limit on the photovoltaic panel through the V-groove, reducing the relative displacement and vibration at the connection between the photovoltaic panel and the bracket, thereby avoiding loosening at the connection and deformation of the bracket.

[0018] 3. The restraint assembly, through the cooperation of cables and double-conical winding rollers, provides lateral support for the raised and lowered column, enhancing the overall structural rigidity of the support. When the column is raised or lowered, the second rack meshes with two second spur gears, driving the double-conical winding rollers to synchronously wind or unwind, ensuring that the cable maintains a suitable tension range after the column is raised and lowered. The cable is pulled diagonally from the top of the column to the base, directly transferring the lateral force generated by the wind load to the ground foundation, significantly reducing the bending stress at the base of the column, preventing the column from bending or breaking, and enhancing the overall anti-overturning capacity of the support. When the wind blows or the photovoltaic panel adjusts its azimuth angle, the symmetrically arranged cables on both sides can effectively prevent the column from twisting, maintain the posture stability of the support, and reduce the risk of overall support failure. Attached Figure Description

[0019] Figure 1 A schematic diagram of the main structure of an adjustable bracket for a distributed photovoltaic power generation panel with automatic light tracking function provided in this application; Figure 2 A schematic diagram of the structure of an adjustable bracket for a distributed photovoltaic power generation panel with automatic light tracking function after the photovoltaic panel is rotated, as provided in this application; Figure 3 A schematic diagram of the photovoltaic panel after leveling of an adjustable bracket for a distributed photovoltaic power generation panel with automatic light tracking function, provided for this application; Figure 4 A schematic diagram of the rotating component structure of an adjustable bracket for a distributed photovoltaic power generation panel with automatic light tracking function provided in this application; Figure 5 A schematic diagram of the diagonal bracing component structure of an adjustable bracket for a distributed photovoltaic power generation panel with automatic light tracking function provided in this application; Figure 6 A schematic diagram of the protective shell and through-hole structure of an adjustable bracket for a distributed photovoltaic power generation panel with automatic light tracking function provided in this application; Figure 7 A schematic diagram of the clamping component structure of an adjustable bracket for a distributed photovoltaic power generation panel with automatic light tracking function provided in this application; Figure 8 A schematic diagram of the constraint component structure of an adjustable bracket for a distributed photovoltaic power generation panel with automatic light tracking function provided in this application; Figure 9 This application provides a schematic diagram of the photoelectric sensor structure for an adjustable bracket for a distributed photovoltaic power generation panel with automatic light tracking function.

[0020] In the diagram: 1. Base; 2. Photovoltaic panel; 3. Fixed cylinder; 4. Lifting column; 5. Crossbar; 6. Rotating assembly; 601. Bearing seat; 602. Gear motor; 7. Rotating shaft; 8. Diagonal brace assembly; 801. Upright pole; 802. Guide port; 803. One-way screw; 804. Guide block; 805. Connecting rod; 806. Rotating cavity; 807. Worm gear; 808. Worm; 809. First spur gear; 810. First rack; 9. Clamp Holding component; 901, wedge frame; 902, guide groove; 903, sliding rod; 904, moving rod; 905, clamping block; 906, V-groove; 907, spring; 10, constraint component; 101, second rack; 102, mounting base; 103, double conical take-up roller; 104, cable; 105, second spur gear; 11, electric push rod; 12, protective shell; 13, through-hole; 14, photoelectric sensor; 15, tilt sensor. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0022] Please see Figures 1-9 As shown, the present invention provides a technical solution: an adjustable bracket for distributed photovoltaic power generation panels with automatic light tracking function, including a base 1 and a photovoltaic panel 2. The photovoltaic panel 2 is located at the upper end of the base 1. Two symmetrically arranged fixed cylinders 3 are fixedly connected to the upper end of the base 1. Lifting columns 4 are slidably connected inside the two fixed cylinders 3. A crossbar 5 is fixedly connected at the upper part between the two lifting columns 4. A rotating component 6 for tracking the azimuth angle of the sun is installed at the upper end of the two lifting columns 4. A rotating shaft 7 is installed on the rotating component 6. A diagonal bracing component 8 for optimizing the tilt angle of the photovoltaic panel 2 is installed on the rotating shaft 7. The photovoltaic panel 2 is installed on the diagonal bracing component 8. Clamping components 9 for fixing the photovoltaic panel 2 are installed on the crossbar 5 and the base 1. Constraint components 10 for providing lateral support to the lifting columns 4 are installed on the side walls of the two lifting columns 4. An electric push rod 11 is hinged at the middle of the upper end of the base 1. The telescopic end of the electric push rod 11 is hinged at the middle of the lower end of the crossbar 5.

[0023] Furthermore, the base 1 is fixed in the designated position with anchor bolts, providing a stable installation foundation for the entire bracket. The fixing cylinder 3 provides vertical sliding guidance and support for the lifting column 4. The lifting column 4 changes the working height of the bracket by sliding up and down. In severe weather, the lifting column 4 lowers to reduce wind load torque and lower the overall center of gravity, enhancing anti-overturning stability. During normal operation, the lifting column 4 rises to increase the height of the photovoltaic panel 2 off the ground, effectively avoiding ground obstructions and improving ventilation and heat dissipation. The crossbar 5 connects the two lifting columns 4 into one to ensure synchronous lifting and lowering, while providing installation and force points for the electric push rod 11 and the clamping assembly 9. The rotating assembly 6 is installed on the upper end of the two lifting columns 4, driving the rotating shaft 7 to rotate so that the photovoltaic panel 2 tracks the solar azimuth angle. The rotating shaft 7 transmits the torque of the rotating assembly 6 and supports the diagonal brace assembly 8 and the light source. The photovoltaic panel 2 and the inclined bracing assembly 8 adjust the tilt angle of the photovoltaic panel 2 to maintain a preset fixed tilt angle, thereby statically optimizing the response to the solar altitude angle. This allows the support to achieve an annual power generation efficiency that is better than that of a single axis and close to that of a dual axis when only azimuth angle tracking is performed. The clamping assembly 9 clamps and fixes the photovoltaic panel 2 from both sides after it is leveled, in order to disperse wind load stress and prevent fatigue damage to the support connectors. The restraint assembly 10 is installed on the side wall of the lifting column 4 and provides lateral support for the lifting column 4 after raising and lowering it by diagonal rope tension, thereby reducing the bending stress at the root of the lifting column 4 and preventing torsion, thus avoiding bending and breakage of the lifting column 4. At the same time, it suppresses the swaying of the top of the lifting column 4 to ensure the tracking accuracy. The electric push rod 11 drives the crossbar 5 and the lifting column 4 to raise and lower as a whole through telescopic drive, thereby changing the working height of the support and triggering the action of the inclined bracing assembly 8 and the clamping assembly 9.

[0024] Photovoltaic panel 2 is an existing technology. It is a semiconductor power generation device that directly converts solar energy into electrical energy based on the photovoltaic effect. It is mainly composed of tempered glass, encapsulation layer, crystalline silicon cells, back sheet and aluminum alloy frame laminated and encapsulated. When sunlight shines, the cells absorb photon energy and excite electron transitions. Under the action of the built-in electric field of the PN junction, a photogenerated voltage and current are formed, thereby outputting DC power. This will not be elaborated on here.

[0025] In the preferred embodiment of this technical solution, please refer to Figures 1-6 As shown, the diagonal bracing assembly 8 includes a vertical rod 801 and a guide opening 802. The vertical rod 801 is fixedly connected to the side wall of the rotating shaft 7, and the guide opening 802 is opened on the rotating shaft 7. The vertical rod 801 is hinged to one side of the lower end of the photovoltaic panel 2. A one-way screw 803 is rotatably connected to the inner wall of the guide opening 802, and a guide block 804 is slidably connected to the inner wall of the guide opening 802. The guide block 804 is threaded onto the outside of the one-way screw 803. Connecting rods 805 are rotatably connected to both sides of the guide block 804, and the upper ends of the two connecting rods 805 are hinged to the other side of the lower end of the photovoltaic panel 2. A rotating cavity 806 is provided inside the rotating shaft 7. A worm gear 807 and a worm 808 are rotatably connected to the inner wall of the rotating cavity 806. The worm gear 807 and the worm 808 mesh with each other. The output end of the worm gear 807 rotates through the inner wall of the rotating cavity 806 and is fixedly connected to one end of the one-way screw 803. A transmission gear set is installed on the side wall of the rotating shaft 7. The transmission gear set is composed of multiple first spur gears 809 of different diameters meshing in sequence. Multiple first spur gears 809 are rotatably connected to the side wall of the rotating shaft 7. The output end of the smallest first spur gear 809 rotates through the rotating shaft 7 and is fixedly connected to one end of the worm 808. A first rack 810 is fixedly connected to one side of the upper end of the base 1. The largest first spur gear 809 meshes with the first rack 810.

[0026] Furthermore, the pole 801 provides a hinge support point on one side of the photovoltaic panel 2, and the guide opening 802 provides installation space and sliding guidance for the one-way screw 803 and the guide block 804. The one-way screw 803 drives the guide block 804 to slide along the guide opening 802 by rotation. The guide block 804 is threaded on the outside of the one-way screw 803 and slidably connected to the inner wall of the guide opening 802, converting the rotational motion of the one-way screw 803 into linear movement along the guide opening 802. The lower end of the connecting rod 805 is rotatably connected to both sides of the guide block 804, and the upper end is hinged to the other side of the lower end of the photovoltaic panel 2, converting the linear movement of the guide block 804 into the rotation of the photovoltaic panel 2 around the hinge point of the pole 801, thereby adjusting the tilt angle of the photovoltaic panel 2. The rotating cavity 806 is a spiral... The worm wheel 807 and worm 808 provide installation space. The worm wheel 807 and worm 808 mesh with each other and are rotatably connected to the inner wall of the rotating cavity 806. The input rotation of the worm 808 is converted into the output rotation of the worm wheel 807 and achieves self-locking. The one-way screw 803 transmits the torque of the worm wheel 807 to the one-way screw 803. The transmission gear set is composed of multiple first spur gears 809 of different diameters meshing in sequence and rotatably connected to the side wall of the rotating shaft 7. The smaller input speed is increased through multi-stage speed-increasing transmission and then transmitted to the worm 808. The smallest first spur gear 809 inputs the increased rotation speed to the worm 808. The first rack 810 meshes with the largest first spur gear 809 when the rotating shaft 7 descends with the crossbar 5, providing input power to the transmission gear set.

[0027] The installation positions of each component of the bracing assembly 8 and the preset tilt angle and tilt direction of the photovoltaic panel 2 can be adaptively adjusted according to the latitude, sunlight conditions and site layout requirements of the actual installation site to meet the optimal power generation requirements under different regions and operating conditions.

[0028] In the preferred embodiment of this technical solution, please refer to Figure 1 , Figure 2 and Figure 7As shown, the clamping assembly 9 includes two wedge-shaped frames 901, which are fixedly connected to the upper two sides of the base 1. The inclined surfaces of the two wedge-shaped frames 901 are directly opposite the crossbar 5. Two symmetrically arranged guide grooves 902 are opened on one side of the crossbar 5. Sliding rods 903 are slidably connected to the inner walls of the two guide grooves 902. The two sliding rods 903 are respectively located above the inclined surfaces of the two wedge-shaped frames 901. Both sliding rods 903 are fixedly connected to the upper ends of moving rods 904. Both moving rods 904 are fixedly connected to a set of clamping blocks 905 on their side walls. The two sets of clamping blocks 905 are symmetrically arranged. Both sets of clamping blocks 905 have V-shaped grooves 906 on their side walls. The two sets of V-shaped grooves 906 are symmetrically arranged. Both guide grooves 902 are fixedly connected to springs 907 on the inner wall of the side near the electric push rod 11. The two sliding rods 903 are respectively fixedly connected to one end of the two springs 907.

[0029] Furthermore, the wedge frame 901 is fixedly connected to both sides of the upper end of the base 1, with its inclined surface facing the crossbar 5. Its inclined surface is used to convert the vertical movement of the sliding rod 903 into horizontal movement when the crossbar 5 descends. The guide groove 902 provides guidance and limitation for the horizontal sliding of the sliding rod 903. The sliding rod 903 is slidably connected to the inner wall of the guide groove 902 and located above the inclined surface of the wedge frame 901. When descending, it contacts the inclined surface of the wedge frame 901 and slides horizontally along the guide groove 902. One end of the spring 907 is fixedly connected to the inner wall of the guide groove 902 near the electric push rod 11, and the other end is fixedly connected to the sliding rod 903, used to push the crossbar 5 upwards. The sliding rod 903 resets, and the moving rod 904 moves horizontally with the sliding rod 903, driving the clamping block 905 to move synchronously. The two sets of clamping blocks 905 are symmetrically arranged, and there are multiple clamping blocks 905 in each set, which are used to clamp the photovoltaic panel 2 from both sides. The V-shaped groove 906 fits the edge of the photovoltaic panel 2. The inclined surfaces on the upper and lower sides of its V-shaped structure can form a vertical limit on the photovoltaic panel 2, preventing the photovoltaic panel 2 from shaking up and down and detaching under strong wind. The inner wall of the V-shaped groove 906 is provided with a flexible pad, which can not only fit the edge of the photovoltaic panel 2 during clamping, increasing friction to prevent slippage, but also buffer the clamping impact to avoid damaging the edge of the photovoltaic panel 2.

[0030] In the preferred embodiment of this technical solution, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, the constraint assembly 10 includes a second rack 101, with teeth on both sides of the second rack 101. The second rack 101 is fixedly connected to one side of the upper end of the base 1. A mounting seat 102 is fixedly connected to the side wall of the lifting column 4. Two symmetrically arranged double conical winding rollers 103 are rotatably connected to the side of the mounting seat 102 away from the crossbar 5. Two double-cone take-up rollers 103 are each fitted with a cable 104. Both cables 104 are hinged to the upper end of the base 1 and are arranged symmetrically. A second spur gear 105 is fixedly connected to the side of each double-cone take-up roller 103 away from the crossbar 5. The two second spur gears 105 mesh with each other on both sides of the second rack 101.

[0031] Furthermore, the second rack 101 is fixedly connected to one side of the upper end of the base 1 and has teeth on both sides. It meshes synchronously with the two second spur gears 105 when the lifting column 4 is raised or lowered to drive the double-cone take-up roller 103 to rotate. The mounting base 102 is fixedly connected to the upper side wall of the lifting column 4, providing rotational support for the two double-cone take-up rollers 103. The double-cone take-up rollers 103 are rotatably connected to the side of the mounting base 102 away from the crossbar 5 and are symmetrically arranged. Their double-cone structure allows the cable 104 to automatically converge towards the center during winding to avoid tangled layers. The cable 104 is sleeved on the outside of the double-cone take-up rollers 103 and its two ends are hinged to the upper end of the base 1 for use in lifting... The top of column 4 is inclined to the base 1 to provide lateral tension, and the cable 104 has a certain degree of elasticity, which can generate a small amount of elastic elongation when subjected to wind load to buffer the instantaneous impact force and avoid structural damage caused by rigid pulling. The second spur gear 105 is fixedly connected to the side of the double conical winding roller 103 away from the crossbar 5 and meshes with the teeth on both sides of the second rack 101. When the lifting column 4 descends, the second spur gear 105 rolls down along the second rack 101 and drives the double conical winding roller 103 to wind up the cable 104. When the lifting column 4 rises, the second spur gear 105 rolls up along the second rack 101 and drives the double conical winding roller 103 to unwind the cable 104.

[0032] In the preferred embodiment of this technical solution, please refer to Figure 1 , Figure 2 and Figure 4 As shown, the rotating assembly 6 includes a bearing housing 601 and a geared motor 602. The bearing housing 601 and the geared motor 602 are respectively fixedly connected to the upper ends of the two lifting columns 4. One end of the rotating shaft 7 is rotatably connected inside the bearing housing 601, and the output end of the geared motor 602 is fixedly connected to one end of the rotating shaft 7.

[0033] Furthermore, the bearing housing 601 is fixedly connected to the upper end of a lifting column 4 to provide rotational support for one end of the rotating shaft 7 to ensure the coaxiality and stability of the rotating shaft 7 during rotation. The geared motor 602 is used to drive the rotating shaft 7 to rotate so that the photovoltaic panel 2 can track the solar azimuth angle. The geared motor 602 has a self-locking function to lock the rotating shaft 7 when the power is off to prevent the photovoltaic panel 2 from being passively deflected under wind load.

[0034] In the preferred embodiment of this technical solution, please refer to Figure 6As shown, a protective shell 12 is fixedly connected to one side of the rotating shaft 7. Multiple first spur gears 809 are located inside the protective shell 12. A through-hole 13 is provided on the protective shell 12. The cross-section of the through-hole 13 is larger than the cross-section of the first rack 810.

[0035] Furthermore, the protective shell 12 is fixedly connected to one side of the rotating shaft 7 by bolts, which is used to enclose multiple first spur gears 809 inside to prevent external debris from entering and to ensure the cleanliness and safety of the gear meshing transmission process. The detachable protective shell 12 facilitates the user to lubricate and maintain the multiple first spur gears 809. The through-hole 13 is opened on the protective shell 12 and its cross-section is larger than the cross-section of the first rack 810. It is used to allow the first rack 810 to pass through the protective shell 12 and mesh with the largest first spur gear 809 when the rotating shaft 7 descends, while avoiding interference and collision between the protective shell 12 and the first rack 810.

[0036] In the preferred embodiment of this technical solution, please refer to Figure 2 and Figure 9 As shown, a photoelectric sensor 14 is fixedly connected to the upper end of the photovoltaic panel 2, and a tilt sensor 15 is fixedly connected to the lower end of the photovoltaic panel 2.

[0037] Furthermore, the photoelectric sensor 14 is fixedly connected to the upper end of the photovoltaic panel 2 to detect the solar azimuth angle in real time and transmit the signal to the control system to drive the geared motor 602 to track the sun's position. The tilt sensor 15 is fixedly connected to the lower end of the photovoltaic panel 2 to detect the real-time tilt angle of the photovoltaic panel 2. After the rotating component 6 levels the photovoltaic panel 2, it ensures that the through-hole 13 on the protective shell 12 is aligned with the first rack 810, thereby ensuring that the first rack 810 can stably enter the protective shell 12 and mesh with the largest first spur gear 809 during the lifting and lowering process.

[0038] Working principle: The base 1 is fixed in the designated position by anchor bolts. During normal operation, the geared motor 602 drives the rotating shaft 7 to rotate in the bearing seat 601, so that the photovoltaic panel 2 rotates in the direction of the solar azimuth angle. At this time, the inclined support component 8 maintains the preset fixed tilt angle, which is usually close to the local latitude, so that the photovoltaic panel 2 obtains the optimal position of the solar altitude angle in a static state. This allows the bracket to drive the photovoltaic panel 2 to achieve an annual power generation efficiency that is better than that of a single axis and close to that of a dual axis when performing azimuth angle tracking. When encountering severe windy weather, the geared motor 602 drives the rotating shaft 7 to rotate, and in conjunction with the tilt sensor 15, adjusts the azimuth angle of the photovoltaic panel 2 so that the photovoltaic panel 2 faces the wind with its side edge, greatly reducing the windward area and reducing the lateral wind load borne by the support. At this time, the through hole 13 on the protective shell 12 of the side wall of the rotating shaft 7 is located above the first rack 810. Subsequently, the telescopic end of the electric push rod 11 drives the crossbar 5 to descend. The two lifting columns 4, which are fixedly connected to both ends of the crossbar 5, slide downward synchronously within the fixed cylinder 3, reducing the overall height of the support, shortening the cantilever length of the lifting columns 4, and reducing the bending moment at the root of the lifting columns 4. During the descent of the crossbar 5, the first rack 810, which is fixedly connected to the upper end of the base 1, meshes with the largest first spur gear 809 on the rotating shaft 7. The speed is increased by the sequential meshing of multiple first spur gears 809 with different diameters. The smallest first spur gear 809 drives... The worm gear 808 rotates, driving the worm wheel 807 to rotate. The worm wheel 807 drives the one-way screw 803 to rotate, causing the guide block 804 to slide within the guide opening 802. The guide block 804 pushes the photovoltaic panel 2 to rotate upward around the hinge point of the upright 801 through the connecting rod 805, gradually reducing the tilt angle of the photovoltaic panel 2 from the preset fixed angle to zero degrees, that is, the surface of the photovoltaic panel 2 is completely parallel to the ground, achieving a horizontal wind-resistant posture for the photovoltaic panel 2. At this time, the wind resistance is reduced to the minimum, and the overall overturning moment of the support is significantly reduced. After the photovoltaic panel 2 is fully leveled, the electric push rod 11 drives the crossbar 5 to continue to descend a short distance. At this time, the first rack 810 has already disengaged from the largest first spur gear 809, and the lower end face of the sliding rod 903 contacts the inclined surface of the wedge frame 901. As it continues to descend, the inclined surface of the wedge frame 901 decomposes the force of the sliding rod 903 into horizontal and downward directions, so that the sliding rod 903 is pushed and slid in the guide groove 902. The spring 907 contracts, and the moving rods 904 on both sides move closer to each other, driving the two sets of clamping blocks 905 to move from both sides to the middle. The V-groove 906 forms a clamping limit on both sides of the photovoltaic panel 2, transferring and dispersing the wind load stress from the connection of the inclined brace assembly 8 to the crossbar 5, thereby preventing fatigue damage to the connector of the inclined brace assembly 8 under strong winds, and reducing the relative vibration between the photovoltaic panel 2 and the bracket, thus avoiding structural deformation. Throughout the entire process of raising and lowering the lifting column 4, the constraint component 10 works continuously. When the lifting column 4 descends, the teeth on both sides of the second rack 101 mesh with the two second spur gears 105 respectively, driving the two double conical winding rollers 103 to wind synchronously, ensuring that the cable 104 is kept within a suitable tension range. When the lifting column 4 rises, the second rack 101 drives the second spur gears 105 in the opposite direction, causing the double conical winding rollers 103 to unwind. The cable 104 of the constraint component 10 is pulled obliquely from the top of the lifting column 4 to the base 1, which can directly transfer the lateral force generated by the wind load to the ground foundation, reducing the bending stress at the root of the lifting column 4. At the same time, the symmetrically arranged cables 104 on both sides form a couple, effectively preventing the lifting column 4 from twisting. Even in good environmental conditions, the posture stability of the support can be maintained, reducing the risk of overall support failure. After the strong winds subside, the electric push rod 11 extends, pushing the crossbar 5 upward. The lifting column 4 rises simultaneously, and the sliding rod 903 of the clamping assembly 9 slides outward under the reset action of the spring 907. The clamping block 905 disengages from both sides of the photovoltaic panel 2, releasing the clamp. The inclined support assembly 8 automatically reverses its action, and the photovoltaic panel 2 rotates downward around the upright 801 under the drive of the connecting rod 805 and the guide block 804, restoring to the preset fixed tilt angle. Meanwhile, the rotating assembly 6 resumes normal light tracking, and the photovoltaic panel 2 begins to rotate again following the sun's azimuth angle.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0040] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. An adjustable support for a distributed photovoltaic power generation panel with automatic light tracking function, comprising a base (1) and a photovoltaic panel (2), wherein the photovoltaic panel (2) is located at the upper end of the base (1), characterized in that: The upper end of the base (1) is fixedly connected to two symmetrically arranged fixed cylinders (3). Lifting columns (4) are slidably connected inside the two fixed cylinders (3). A crossbar (5) is fixedly connected between the two lifting columns (4) at the upper part. A rotating component (6) for tracking the azimuth angle of the sun is installed on the upper end of the two lifting columns (4). A rotating shaft (7) is installed on the rotating component (6). A diagonal bracing component (8) for optimizing the tilt angle of the photovoltaic panel (2) is installed on the rotating shaft (7). The photovoltaic panel (2) is installed on the diagonal bracing component (8). A clamping component (9) for fixing the photovoltaic panel (2) is installed on the crossbar (5) and the base (1). A constraint component (10) for providing lateral support to the lifting columns (4) is installed on the side walls of the two lifting columns (4). An electric push rod (11) is hinged at the middle of the upper end of the base (1). The telescopic end of the electric push rod (11) is hinged at the middle of the lower end of the crossbar (5).

2. The adjustable bracket for distributed photovoltaic power generation panels with automatic light tracking function according to claim 1, characterized in that: The diagonal bracing assembly (8) includes a vertical rod (801) and a guide opening (802). The vertical rod (801) is fixedly connected to the side wall of the rotating shaft (7). The guide opening (802) is opened on the rotating shaft (7). The vertical rod (801) is hinged to one side of the lower end of the photovoltaic panel (2). A one-way screw (803) is rotatably connected to the inner wall of the guide opening (802). A guide block (804) is slidably connected to the inner wall of the guide opening (802). The guide block (804) is threaded onto the outside of the one-way screw (803). Connecting rods (805) are rotatably connected to both sides of the guide block (804). The upper ends of the two connecting rods (805) are hinged to the other side of the lower end of the photovoltaic panel (2).

3. The adjustable bracket for distributed photovoltaic power generation panels with automatic light tracking function according to claim 2, characterized in that: A rotating cavity (806) is provided inside the rotating shaft (7). A worm wheel (807) and a worm (808) are rotatably connected to the inner wall of the rotating cavity (806). The worm wheel (807) and the worm (808) mesh with each other. The output end of the worm wheel (807) rotates through the inner wall of the rotating cavity (806) and is fixedly connected to one end of a one-way screw (803). A transmission gear set is installed on the side wall of the rotating shaft (7). The transmission gear set is composed of multiple first spur gears (809) of different diameters meshing in sequence. Multiple first spur gears (809) are rotatably connected to the side wall of the rotating shaft (7). The output end of the smallest first spur gear (809) rotates through the rotating shaft (7) and is fixedly connected to one end of the worm (808). A first rack (810) is fixedly connected to one side of the upper end of the base (1). The largest first spur gear (809) meshes with the first rack (810).

4. The adjustable bracket for distributed photovoltaic power generation panels with automatic light tracking function according to claim 1, characterized in that: The clamping assembly (9) includes two wedge frames (901), which are fixedly connected to the upper sides of the base (1). The inclined surfaces of the two wedge frames (901) are directly opposite the crossbar (5). Two symmetrically arranged guide grooves (902) are opened on one side of the crossbar (5). Sliding rods (903) are slidably connected to the inner walls of the two guide grooves (902). The two sliding rods (903) are respectively located above the inclined surfaces of the two wedge frames (901).

5. An adjustable bracket for distributed photovoltaic panels with automatic light tracking function according to claim 4, characterized in that: The upper ends of the two sliding rods (903) are fixedly connected to the moving rods (904), and the side walls of the two moving rods (904) are fixedly connected to a set of clamping blocks (905). The two sets of clamping blocks (905) are symmetrically arranged, and the side walls of the two sets of clamping blocks (905) are provided with V-shaped grooves (906). The two sets of V-shaped grooves (906) are symmetrically arranged. The inner walls of the two guide grooves (902) near the electric push rod (11) are fixedly connected to springs (907), and the two sliding rods (903) are respectively fixedly connected to one end of the two springs (907).

6. The adjustable bracket for distributed photovoltaic power generation panels with automatic light tracking function according to claim 1, characterized in that: The constraint assembly (10) includes a second rack (101), which has teeth on both sides. The second rack (101) is fixedly connected to one side of the upper end of the base (1). The side wall of the lifting column (4) is fixedly connected to a mounting seat (102). The mounting seat (102) is rotatably connected to two symmetrically arranged double conical take-up rollers (103) on the side away from the crossbar (5).

7. An adjustable bracket for distributed photovoltaic panels with automatic light tracking function according to claim 6, characterized in that: Both of the two double-cone take-up rollers (103) are fitted with cables (104), both cables (104) are hinged to the upper end of the base (1), and the two cables (104) are arranged symmetrically. The two double-cone take-up rollers (103) are fixedly connected to a second spur gear (105) on the side away from the crossbar (5). The two second spur gears (105) mesh with each other on both sides of the second rack (101).

8. The adjustable bracket for distributed photovoltaic power generation panels with automatic light tracking function according to claim 1, characterized in that: The rotating assembly (6) includes a bearing housing (601) and a geared motor (602). The bearing housing (601) and the geared motor (602) are respectively fixedly connected to the upper ends of two lifting columns (4). One end of the rotating shaft (7) is rotatably connected inside the bearing housing (601), and the output end of the geared motor (602) is fixedly connected to one end of the rotating shaft (7).

9. An adjustable bracket for distributed photovoltaic power generation panels with automatic light tracking function according to claim 3, characterized in that: A protective shell (12) is fixedly connected to one side of the rotating shaft (7). Multiple first spur gears (809) are located inside the protective shell (12). A through-hole (13) is provided on the protective shell (12). The cross-section of the through-hole (13) is larger than the cross-section of the first rack (810).

10. An adjustable bracket for distributed photovoltaic power generation panels with automatic light tracking function according to claim 1, characterized in that: A photoelectric sensor (14) is fixedly connected to the upper end of the photovoltaic panel (2), and a tilt sensor (15) is fixedly connected to the lower end of the photovoltaic panel (2).

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