A high-performance distributed photovoltaic power station grid-connected protection device and a use method thereof

Abstract

The application relates to the technical field of power station grid connection, and discloses a high-efficiency distributed photovoltaic power station grid connection protection device and a use method thereof, which comprises a supporting shell, a rotating block is rotationally connected to the top end of the supporting shell, a working shell is fixedly connected to one end of the rotating block, an electric telescopic rod is fixedly connected to the inner wall bottom of the supporting shell, a first vertical hole is formed in one side of the outer wall of the supporting shell, second vertical holes are respectively formed in the two sides of the outer wall of the supporting shell, the grid connection protection mechanism further comprises, when the sun rises, the electric telescopic rod is started, the electric telescopic rod drives the bearing block to descend, the bearing block drives the rotating plate to descend, the rotating plate drives the fixed rod to descend, because the rotating block rotates at the top end of the supporting shell, the fixed rod drives the working shell and the rotating block to rotate around the top end of the supporting shell, the working shell drives the photovoltaic grid connection to rotate around, so that the photovoltaic grid connection can be adjusted in angle along with the movement of the sunlight, and the absorption efficiency of the photovoltaic grid connection is improved.

Description

Technical Field

[0001] This invention relates to the field of power plant grid connection technology, specifically to a high-efficiency distributed photovoltaic power plant grid connection protection device and its usage method. Background Technology

[0002] With rapid societal development, energy has always been one of the biggest challenges facing humanity. As limited energy resources dwindle, people need to find new alternatives. Solar energy, as a new type of clean energy, has been utilized, which involves grid-connected photovoltaic (PV) power plants. Grid-connected PV power generation involves converting the direct current (DC) generated by solar panels into alternating current (AC) that meets the requirements of the municipal power grid via a grid-connected inverter before directly connecting it to the public power grid. However, current grid-connected PV power plants still have many shortcomings.

[0003] Existing grid-connected photovoltaic systems are typically installed outdoors to absorb sunlight. Current technology usually places the photovoltaic grid outdoors, and when night falls, dew and dust impurities generated at night will adhere to the outer surface of the photovoltaic grid, affecting the photovoltaic grid's ability to absorb sunlight the next day and reducing the photovoltaic grid's light transmittance. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency grid-connected protection device for distributed photovoltaic power stations and its usage method, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a high-efficiency distributed photovoltaic power station grid-connected protection device and its usage method, comprising a support shell, a rotating block rotatably connected to the top of the support shell, a working shell fixedly connected to one end of the rotating block, an electric telescopic rod fixedly connected to the bottom of the inner wall of the support shell, a first vertical hole on one side of the outer wall of the support shell, and second vertical holes on both sides of the outer wall of the support shell, and further comprising a grid-connected protection mechanism, the grid-connected protection mechanism comprising a bearing block fixedly connected to the top of the electric telescopic rod, a rotating plate rotatably connected to one end of the bearing block, a rotating plate having its outer wall slidably connected to the inner wall of the first vertical hole, a fixing rod rotatably connected to the top of the rotating plate, one end of the fixing rod being fixedly connected to one side of the outer wall of the working shell, crossbars fixedly connected to both sides of the top of the support shell, and a clamping assembly provided on the outer wall of the bearing block.

[0007] Furthermore, the clamping assembly includes rotating rods rotatably connected to both sides of the support block. One end of the rotating rod is slidably connected to the inner wall of the second vertical hole. The end of the rotating rod away from the support block is rotatably connected to a slider. The inner wall of the slider is slidably connected to the outer wall of the crossbar. A semi-circular plate is fixedly connected to the top of the slider.

[0008] Furthermore, a photovoltaic grid connection is fixedly connected to the side of the working shell away from the rotating block, and a rotating ball is contacted on one side of the semi-circular plate. A round rod is rotatably connected to the outer wall of the rotating ball. One end of the round rod passes through the working shell and extends into the interior of the working shell. A square plate is fixedly connected to the end of the round rod away from the rotating ball. The outer wall of the square plate is slidably connected to the inner wall of the working shell, and a spring is fixedly connected between the two square plates.

[0009] Furthermore, a cleaning assembly is provided on the inner wall of the working shell. The cleaning assembly includes a first heater fixedly connected to one side of the inner wall of the working shell. Two first rotating bars are rotatably connected to the two ends of the square plate away from the round rod. A concave shell is rotatably connected to the end of the first rotating bar away from the square plate. Two concave shells are provided. A vertical rod is fixedly connected to the side wall of the concave shell. The top of the vertical rod penetrates the working shell and extends to the outside of the working shell.

[0010] Furthermore, an L-shaped plate is fixedly connected to the end of the vertical rod away from the concave shell, and a strip shell is fixedly connected to the side of the L-shaped plate away from the vertical rod. A cleaning plate is fixedly connected to one side of the outer wall of the strip shell, and several round holes are opened on one side of the inner wall of the strip shell. The top and bottom of the working shell are connected to elastic tubes, and the end of the elastic tube away from the working shell is connected to one side of the inner wall of the strip shell.

[0011] Furthermore, the side wall of the working shell is provided with an auxiliary component, which includes a fixed plate fixedly connected to both ends of the working shell near the photovoltaic grid connection side. A second rotating bar is rotatably connected to both ends of one side of the fixed plate. A moving block is rotatably connected to the end of the second rotating bar away from the fixed plate. A limit groove is opened on one side of the outer wall of the strip shell. One end of the outer wall of the moving block is slidably connected to the inner wall of the limit groove. A scraping block is fixedly connected to one end of the moving block. One side of the scraping block is in contact with the side wall of the cleaning plate.

[0012] Furthermore, a drying assembly is provided on the side wall of the movable block. The drying assembly includes a connecting rod fixedly connected to one side of the movable block, and a drying shell is fixedly connected to both ends of the working shell near the fixed plate. A movable plate is slidably connected to the inner wall of the drying shell.

[0013] Furthermore, a sliding groove is provided on one side of the movable plate, and the outer wall of one end of the connecting rod is slidably connected to the inner wall of the sliding groove. A limit hole is provided on one side of the outer wall of the drying shell, and the outer wall of one end of the connecting rod is slidably connected to the inner wall of the limit hole. A return spring is fixedly connected to the side of the movable plate away from the connecting rod, and one end of the return spring is fixedly connected to the inner wall of the drying shell.

[0014] Furthermore, a second heater is fixedly connected to the inner wall of the drying shell near the return spring, and a bent pipe is connected to the outer wall of the drying shell. One end of the bent pipe is connected to an exhaust device, and the outer wall of the exhaust device is fixedly connected to the side wall of the drying shell.

[0015] A method for using a high-efficiency distributed photovoltaic power station grid-connected protection device includes the following steps:

[0016] Step 1: Adjust the angle;

[0017] Step 2: Clean up the photovoltaic grid connection;

[0018] Step 3: Assisted cleaning;

[0019] Step 4: Drying jet.

[0020] The present invention has the following beneficial effects:

[0021] This invention, when the sun rises, activates an electric telescopic rod. The electric telescopic rod drives a supporting block to descend, which in turn drives a rotating plate to descend. The rotating plate then drives a fixed rod to descend. Because the rotating block rotates at the top of the support shell, the fixed rod causes the working shell and the rotating block to rotate around the top of the support shell. The working shell causes the photovoltaic grid to rotate, thus allowing the photovoltaic grid to adjust its angle according to the movement of sunlight, improving the absorption efficiency of the photovoltaic grid. During the descent of the supporting block, the supporting block drives the rotating rod to descend. Limited by the crossbar, the rotating rod causes a slider to slide along the crossbar. The slider causes the semicircular plate to move, and the two semicircular plates move together. As the plates move closer together, the semicircular plate comes into contact with the side wall of the rotating ball, squeezing the ball. The rotating ball drives the round rod to move, which in turn drives the square plate to move. The square plate moves inside the working shell, thus securing the working shell and the photovoltaic grid connection firmly during angle adjustment. This prevents slight slippage during angle adjustment and improves the stability of solar energy absorption. When the semicircular plate is clamped, it contacts the rotating ball. Because the rotating ball can rotate omnidirectionally on the inner wall of the round rod, friction is reduced during angle adjustment, further improving the stability of solar energy absorption.

[0022] (2) In this invention, when the square plate moves, the square plate drives the first rotating bar to move, the first rotating bar drives the concave shell to move, because the vertical rod slides on the inner wall of the working shell, the concave shell drives the vertical rod to move along the inner wall of the working shell, the vertical rod drives the L-shaped plate to move, the L-shaped plate drives the strip shell to move, and the strip shell drives the cleaning plate to move. During the movement of the cleaning plate, the dew and impurities generated on the photovoltaic grid-connected surface can be cleaned, which improves the absorption effect of the photovoltaic grid-connected on sunlight. Due to the setting of the first heater, the airflow inside the working shell is heated. When the two square plates approach each other, the hot airflow inside the working shell enters the interior of the elastic tube. The hot airflow enters the interior of the strip shell through the elastic tube. The hot airflow enters the interior of the round hole through the strip shell. The hot airflow performs jet drying treatment on the cleaning plate through the round hole, which improves the cleaning effect of the cleaning plate on the dew on the photovoltaic grid-connected surface.

[0023] (3) In this invention, when the strip shell moves toward the fixed plate, it is subjected to the reaction force of the fixed plate. The second rotating bar rotates around the fixed plate. Due to the setting of the limiting groove at the strip shell, the second rotating bar drives the moving block to slide along the inner wall of the limiting groove. The moving block drives the scraping block to move. During the movement of the scraping block, it will come into contact with the side wall of the cleaning plate, thereby scraping away the dust and impurities adhering to the cleaning plate during cleaning, thus improving the cleaning effect of the cleaning plate on photovoltaic grid connection in the future.

[0024] (4) In this invention, when the moving block moves, the moving block drives the connecting rod to move, and the connecting rod drives the moving plate to move. Due to the setting of the second heater, the second heater heats the airflow inside the drying shell. When the moving plate moves inside the drying shell, the hot airflow inside the drying shell enters the inside of the bent pipe. The hot airflow enters the inside of the exhaust component through the bent pipe. The hot airflow sprays and dries the surface of the photovoltaic grid-connected device through the exhaust component, drying the residual dew on the surface of the photovoltaic grid-connected device and preventing the residual dew from adhering to the dust and impurities scraped up by the scraper block. This improves the efficiency of the photovoltaic grid-connected device in absorbing sunlight. When the sun disappears, the electric telescopic rod is activated in the opposite direction, so that the two L-shaped plates move closer to each other, thereby sealing the surface of the photovoltaic grid-connected device and preventing impurities from adhering to the surface of the photovoltaic grid-connected device at night. This improves the stability of the photovoltaic grid-connected device in absorbing sunlight after the sun appears.

[0025] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a top view of the overall structure of the present invention;

[0028] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention;

[0029] Figure 3 This is a schematic cross-sectional view of the working shell structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the front structure of the spring of the present invention;

[0031] Figure 5 This is a schematic cross-sectional view of the drying shell structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the front structure of the photovoltaic grid-connected system of the present invention;

[0033] Figure 7 For the present invention Figure 3 Enlarged view of A in the middle;

[0034] Figure 8 For the present invention Figure 5 Enlarged view of B in the middle;

[0035] Figure 9 For the present invention Figure 6 Enlarged view of C;

[0036] Figure 10 This is a schematic diagram of the structure of the present invention.

[0037] The attached diagram lists the components represented by each number as follows:

[0038] In the diagram: 1. Support shell; 2. Rotating block; 3. Working shell; 4. Electric telescopic rod; 5. First vertical hole; 6. Second vertical hole; 7. Grid connection protection mechanism; 71. Bearing block; 72. Rotating plate; 73. Fixed rod; 74. Crossbar; 75. Clamping assembly; 76. Cleaning assembly; 77. Auxiliary assembly; 78. Drying assembly; 751. Rotating rod; 752. Slider; 753. Semicircular plate; 754. Photovoltaic grid connection; 755. Rotating ball; 756. Round rod; 757. Square plate; 758. Spring; 761. First heating element. 762. First rotating bar; 763. Concave shell; 764. Vertical rod; 765. L-shaped plate; 766. Strip shell; 767. Cleaning plate; 768. Round hole; 769. Elastic tube; 771. Fixed plate; 772. Second rotating bar; 773. Moving block; 774. Limiting groove; 775. Scraping block; 781. Connecting rod; 782. Drying shell; 789. Limiting hole; 783. Moving plate; 784. Sliding groove; 785. Return spring; 786. Second heater; 787. Bend; 788. Exhaust component. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0040] Example 1, please refer to Figure 1 - Figure 10 As shown, the present invention is a high-efficiency distributed photovoltaic power station grid-connected protection device and its usage method, including a support shell 1, a rotating block 2 rotatably connected to the top of the support shell 1, a working shell 3 fixedly connected to one end of the rotating block 2, an electric telescopic rod 4 fixedly connected to the bottom of the inner wall of the support shell 1, a first vertical hole 5 opened on one side of the outer wall of the support shell 1, and second vertical holes 6 opened on both sides of the outer wall of the support shell 1, and also includes;

[0041] The grid connection protection mechanism 7 includes a bearing block 71 fixedly connected to the top of the electric telescopic rod 4. One end of the bearing block 71 is rotatably connected to a rotating plate 72. The outer wall of one end of the rotating plate 72 is slidably connected to the inner wall of the first vertical hole 5. The top end of the rotating plate 72 is rotatably connected to a fixing rod 73. One end of the fixing rod 73 is fixedly connected to one side of the outer wall of the working shell 3. The top two sides of the support shell 1 are respectively fixedly connected to crossbars 74. The outer wall of the bearing block 71 is provided with a clamping assembly 75. When the semicircular plate 753 clamps the rotating ball 755, the rotating ball 755 can rotate omnidirectionally on the inner wall of the circular rod 756. Therefore, when the photovoltaic grid connection 754 adjusts its angle, the generation of friction can be reduced, further improving the stability of the photovoltaic grid connection 754 in absorbing sunlight.

[0042] The clamping assembly 75 includes a rotating rod 751 rotatably connected to both sides of the support block 71. One end of the rotating rod 751 is slidably connected to the inner wall of the second vertical hole 6. The end of the rotating rod 751 away from the support block 71 is rotatably connected to a slider 752. The inner wall of the slider 752 is slidably connected to the outer wall of the crossbar 74. A semi-circular plate 753 is fixedly connected to the top of the slider 752.

[0043] A photovoltaic grid-connected 754 is fixedly connected to the side of the working shell 3 away from the rotating block 2. When the sun rises, the electric telescopic rod 4 is activated, which drives the bearing block 71 to descend. The bearing block 71 drives the rotating plate 72 to descend, and the rotating plate 72 drives the fixed rod 73 to descend. Because the rotating block 2 rotates at the top of the support shell 1, the fixed rod 73 drives the working shell 3 and the rotating block 2 to rotate around the top of the support shell 1. The working shell 3 drives the photovoltaic grid-connected 754 to rotate, so that the photovoltaic grid-connected 754 can adjust its angle according to the movement of sunlight, thereby improving the absorption efficiency of the photovoltaic grid-connected 754. A rotating ball 755 is contacted on one side of the semi-circular plate 753. A round rod 756 is rotatably connected to the outer wall of the rotating ball 755. One end of the round rod 756 penetrates the working shell 3 and extends into the interior of the working shell 3. A square plate is fixedly connected to the end of the round rod 756 away from the rotating ball 755. 757, the outer wall of the square plate 757 is slidably connected to the inner wall of the working shell 3. When the bearing block 71 descends, the bearing block 71 drives the rotating rod 751 to descend, which is limited by the crossbar 74. The rotating rod 751 drives the slider 752 to slide along the crossbar 74. The slider 752 drives the semicircular plate 753 to move. The two semicircular plates 753 move closer to each other. During the movement of the semicircular plate 753, it will contact the side wall of the rotating ball 755 and squeeze the rotating ball 755. The rotating ball 755 drives the round rod 756 to move. The round rod 756 drives the square plate 757 to move. The square plate 757 moves inside the working shell 3, so that the working shell 3 and the photovoltaic grid-connected 754 are stably clamped during the angle adjustment, preventing the photovoltaic grid-connected 754 from sliding slightly when adjusting the angle. This improves the stability of the photovoltaic grid-connected 754 in absorbing sunlight. A spring 758 is fixedly connected between the two square plates 757.

[0044] In Example 2, a cleaning assembly 76 is provided on the inner wall of the working shell 3. The cleaning assembly 76 includes a first heater 761 fixedly connected to one side of the inner wall of the working shell 3. The two ends of the square plate 757 away from the round rod 756 are respectively rotatably connected to a first rotating bar 762. The end of the first rotating bar 762 away from the square plate 757 is rotatably connected to a concave shell 763. Two concave shells 763 are provided. A vertical rod 764 is fixedly connected to the side wall of the concave shell 763. The top of the vertical rod 764 penetrates the working shell 3 and extends to the outside of the working shell 3.

[0045] An L-shaped plate 765 is fixedly connected to the end of the vertical rod 764 away from the concave shell 763. A strip shell 766 is fixedly connected to the side of the L-shaped plate 765 away from the vertical rod 764. A cleaning plate 767 is fixedly connected to the outer wall of the strip shell 766. When the square plate 757 moves, the square plate 757 drives the first rotating bar 762 to move, and the first rotating bar 762 drives the concave shell 763 to move. Because the vertical rod 764 slides on the inner wall of the working shell 3, the concave shell 763 drives the vertical rod 764 to move along the inner wall of the working shell 3. The vertical rod 764 drives the L-shaped plate 765 to move, the L-shaped plate 765 drives the strip shell 766 to move, and the strip shell 766 drives the cleaning plate 767 to move. During the movement of the cleaning plate 767, the dew and impurities generated on the surface of the photovoltaic grid-connected 754 can be cleaned. The process improves the solar energy absorption effect of the photovoltaic grid-connected 754. Several round holes 768 are provided on one side of the inner wall of the strip-shaped shell 766. Elastic tubes 769 are connected to both the top and bottom of the working shell 3. The end of the elastic tube 769 away from the working shell 3 is connected to one side of the inner wall of the strip-shaped shell 766. The first heater 761 heats the airflow inside the working shell 3. When the two square plates 757 approach each other, the hot airflow inside the working shell 3 enters the elastic tube 769. The hot airflow then enters the strip-shaped shell 766 through the elastic tube 769 and into the round holes 768. The hot airflow then sprays and dries the cleaning plate 767 through the round holes 768, improving the cleaning effect of the cleaning plate 767 on the surface of the photovoltaic grid-connected 754.

[0046] The working shell 3 has an auxiliary component 77 on its side wall. The auxiliary component 77 includes a fixed plate 771 fixedly connected to both ends of the working shell 3 near the photovoltaic grid connection 754. A second rotating strip 772 is rotatably connected to both ends of one side of the fixed plate 771. A moving block 773 is rotatably connected to the end of the second rotating strip 772 away from the fixed plate 771. A limit groove 774 is formed on one side of the outer wall of the strip shell 766. One end of the outer wall of the moving block 773 is slidably connected to the inner wall of the limit groove 774. A scraping block 775 is fixedly connected to one end of the moving block 773. One side of the scraping block 775 is in contact with the cleaning... As the strip shell 766 moves toward the fixed plate 771, the side wall of the plate 767 is subjected to the reaction force of the fixed plate 771. The second rotating bar 772 rotates circumferentially along the fixed plate 771. Due to the setting of the limiting groove 774 at the strip shell 766, the second rotating bar 772 drives the moving block 773 to slide along the inner wall of the limiting groove 774. The moving block 773 drives the scraping block 775 to move. During the movement, the scraping block 775 will come into contact with the side wall of the cleaning plate 767, thereby scraping away the dust and impurities adhering to the cleaning plate 767 during cleaning, improving the cleaning effect of the cleaning plate 767 on the photovoltaic grid-connected 754.

[0047] The side wall of the movable block 773 is provided with a drying component 78. The drying component 78 includes a connecting rod 781 fixedly connected to one side of the movable block 773. The two ends of the working shell 3 near the fixed plate 771 are respectively fixedly connected to a drying shell 782. The inner wall of the drying shell 782 is slidably connected to a movable plate 783.

[0048] A sliding groove 784 is provided on one side of the movable plate 783. One end of the connecting rod 781 is slidably connected to the inner wall of the sliding groove 784. A limiting hole 789 is provided on one side of the outer wall of the drying shell 782. One end of the connecting rod 781 is slidably connected to the inner wall of the limiting hole 789. A return spring 785 is fixedly connected to the side of the movable plate 783 away from the connecting rod 781. One end of the return spring 785 is fixedly connected to one side of the inner wall of the drying shell 782.

[0049] A second heater 786 is fixedly connected to the inner wall of the drying shell 782 near the return spring 785. A bent pipe 787 is connected to one side of the outer wall of the drying shell 782. One end of the bent pipe 787 is connected to an exhaust component 788. The outer wall of the exhaust component 788 is fixedly connected to the side wall of the drying shell 782. When the moving block 773 moves, the moving block 773 drives the connecting rod 781 to move, and the connecting rod 781 drives the moving plate 783 to move. Subjected to the setting of the second heater 786, the second heater 786... The airflow inside the drying shell 782 is heated. When the moving plate 783 moves inside the drying shell 782, the hot airflow inside the drying shell 782 enters the interior of the bent pipe 787. The hot airflow enters the interior of the exhaust component 788 through the bent pipe 787. The hot airflow sprays onto the surface of the photovoltaic grid-connected 754 through the exhaust component 788 to dry the residual dew on the surface of the photovoltaic grid-connected 754, preventing the residual dew from adhering to the dust and impurities scraped off by the scraper block 775, thereby improving the efficiency of the photovoltaic grid-connected 754 in absorbing sunlight.

[0050] A method for using a high-efficiency distributed photovoltaic power station grid-connected protection device includes the following steps:

[0051] Step 1: Adjust the angle;

[0052] Step 2: Clean up the photovoltaic grid connection 754;

[0053] Step 3: Assisted cleaning;

[0054] Step 4: Drying jet.

[0055] In use, when the sun rises, the electric telescopic rod 4 is activated. The electric telescopic rod 4 drives the bearing block 71 to descend, the bearing block 71 drives the rotating plate 72 to descend, and the rotating plate 72 drives the fixed rod 73 to descend. Because the rotating block 2 rotates at the top of the support shell 1, the fixed rod 73 drives the working shell 3 and the rotating block 2 to rotate around the top of the support shell 1. The working shell 3 drives the photovoltaic grid-connected 754 to rotate, so that the photovoltaic grid-connected 754 can adjust its angle according to the movement of sunlight, improving the absorption efficiency of the photovoltaic grid-connected 754. When the bearing block 71 descends, the bearing block 71 drives the rotating rod 751 to descend. Limited by the crossbar 74, the rotating rod 751 drives the slider 752 to slide along the crossbar 74. The slider 752 drives the semicircular plate 753 to move. The two semicircular plates 753... As the semicircular plate 753 moves closer to the rotating ball 755, it comes into contact with the side wall of the rotating ball 755, squeezing the rotating ball 755. The rotating ball 755 drives the round rod 756 to move, and the round rod 756 drives the square plate 757 to move. The square plate 757 moves inside the working shell 3, thereby firmly clamping the working shell 3 and the photovoltaic grid-connected 754 during angle adjustment, preventing small-amplitude slippage of the photovoltaic grid-connected 754 during angle adjustment. This improves the stability of the photovoltaic grid-connected 754 in absorbing sunlight. When the semicircular plate 753 is clamped, and the semicircular plate 753 comes into contact with the rotating ball 755, the rotating ball 755 can rotate omnidirectionally on the inner wall of the round rod 756. Therefore, during the angle adjustment of the photovoltaic grid-connected 754, the generation of friction can be reduced, further improving the stability of the photovoltaic grid-connected 754 in absorbing sunlight.

[0056] As the square plate 757 moves, it drives the first rotating bar 762 to move, which in turn drives the concave shell 763 to move. Because the vertical rod 764 slides on the inner wall of the working shell 3, the concave shell 763 drives the vertical rod 764 to move along the inner wall of the working shell 3. The vertical rod 764 then drives the L-shaped plate 765 to move, which in turn drives the strip shell 766 to move. The strip shell 766 then drives the cleaning plate 767 to move. During its movement, the cleaning plate 767 can clean the dew and impurities generated on the surface of the photovoltaic grid-connected 754, improving its performance. The photovoltaic grid-connected 754 improves the absorption effect of sunlight. The first heater 761 heats the airflow inside the working shell 3. When the two square plates 757 approach each other, the hot airflow inside the working shell 3 enters the elastic tube 769. The hot airflow enters the strip shell 766 through the elastic tube 769. The hot airflow enters the round hole 768 through the strip shell 766. The hot airflow performs jet drying treatment on the cleaning plate 767 through the round hole 768, which improves the cleaning effect of the cleaning plate 767 on the surface of the photovoltaic grid-connected 754.

[0057] As the strip shell 766 moves toward the fixed plate 771, it is subjected to the reaction force of the fixed plate 771. The second rotating bar 772 rotates circumferentially along the fixed plate 771. Due to the setting of the limiting groove 774 at the strip shell 766, the second rotating bar 772 drives the moving block 773 to slide along the inner wall of the limiting groove 774. The moving block 773 drives the scraping block 775 to move. During the movement, the scraping block 775 will come into contact with the side wall of the cleaning plate 767, thereby scraping away the dust and impurities adhering to the cleaning plate 767 during cleaning, improving the cleaning effect of the cleaning plate 767 on the photovoltaic grid-connected 754.

[0058] As the moving block 773 moves, it drives the connecting rod 781 to move, which in turn drives the moving plate 783 to move. Under the influence of the second heater 786, the second heater 786 heats the airflow inside the drying shell 782. When the moving plate 783 moves inside the drying shell 782, the hot airflow inside the drying shell 782 enters the bent pipe 787. The hot airflow then enters the exhaust pipe 788 and flows through the exhaust pipe 788 to the photovoltaic grid-connected 75. The surface of 4 is treated with air drying to dry the residual dew on the surface of the photovoltaic grid-connected 754, preventing the residual dew from adhering to the dust and impurities scraped up by the scraper block 775. This improves the efficiency of the photovoltaic grid-connected 754 in absorbing sunlight. After the sun disappears, the electric telescopic rod 4 is activated in the reverse direction, causing the two L-shaped plates 765 to move closer to each other, thereby sealing the surface of the photovoltaic grid-connected 754 and preventing impurities from adhering to the surface of the photovoltaic grid-connected 754 at night. This improves the stability of the photovoltaic grid-connected 754 in absorbing sunlight after the sun appears.

[0059] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-performance distributed photovoltaic power station grid-connected protection device, characterized in that: Including support shell (1), the top end of support shell (1) is rotatably connected with rotating block (2), one end of rotating block (2) is fixedly connected with working shell (3), the inner wall bottom of support shell (1) is fixedly connected with electric telescopic rod (4), the outer wall one side of support shell (1) is equipped with first vertical hole (5), the outer wall both sides of support shell (1) are equipped with second vertical hole (6) respectively, still including; And grid protection mechanism (7), grid protection mechanism (7) includes the bearing block (71) fixedly connected at the top of electric telescopic rod (4), one end of bearing block (71) is rotatably connected with rotating plate (72), the inner wall of first vertical hole (5) is slidably connected at the outer wall one end of rotating plate (72), the top end of rotating plate (72) is rotatably connected with fixed rod (73), one end of fixed rod (73) is fixedly connected at the outer wall one side of working shell (3), the top end both sides of support shell (1) are fixedly connected with cross rod (74) respectively, the outer wall of bearing block (71) is provided with clamping assembly (75); The clamping assembly (75) includes rotating rod (751) rotatably connected at the both sides of bearing block (71), the inner wall of second vertical hole (6) is slidably connected at the outer wall one end of rotating rod (751), the end, away from bearing block (71), of rotating rod (751) is rotatably connected with sliding block (752), the inner wall of sliding block (752) is slidably connected at the outer wall of cross rod (74), the top of sliding block (752) is fixedly connected with semicircular plate (753); The side, away from rotating block (2), of working shell (3) is fixedly connected with photovoltaic grid (754), one side of semicircular plate (753) is in contact with rotatable ball (755), the outer wall of rotatable ball (755) is rotatably connected with round rod (756), one end of round rod (756) penetrates working shell (3) and extends to the inside of working shell (3), the end, away from rotatable ball (755), of round rod (756) is fixedly connected with square plate (757), the outer wall of square plate (757) is slidably connected at the inner wall of working shell (3), two square plates (757) are fixedly connected with spring (758) between them; The inner wall of working shell (3) is provided with cleaning assembly (76), the cleaning assembly (76) includes first heater (761) fixedly connected at the inner wall one side of working shell (3), the two ends of the side, away from round rod (756), of square plate (757) are rotatably connected with first rotating bar (762) respectively, the end, away from square plate (757), of first rotating bar (762) is rotatably connected with concave shell (763), the concave shell (763) is provided with two, the side wall of concave shell (763) is fixedly connected with vertical rod (764), the top of vertical rod (764) penetrates working shell (3) and extends to the outside of working shell (3). The one end of the vertical rod (764) is fixedly connected with an L-shaped plate (765) away from the concave shell (763), one side of the L-shaped plate (765) away from the vertical rod (764) is fixedly connected with a strip-shaped shell (766), one side of the outer wall of the strip-shaped shell (766) is fixedly connected with a cleaning plate (767), a plurality of round holes (768) are arranged on one side of the inner wall of the strip-shaped shell (766), and the top and the bottom of the working shell (3) are both communicated with elastic pipes (769) away from the working shell (3). The side wall of the working shell (3) is provided with an auxiliary assembly (77), the auxiliary assembly (77) comprises fixed plates (771) fixedly connected to both ends of the side of the working shell (3) close to the photovoltaic grid-connected (754), both ends of one side of the fixed plate (771) are rotatably connected with second rotating rods (772), one end of the second rotating rod (772) away from the fixed plate (771) is rotatably connected with a moving block (773), a limiting groove (774) is arranged on one side of the outer wall of the strip-shaped shell (766), and one end of the outer wall of the moving block (773) is slidably connected to the inner wall of the limiting groove (774). One end of the moving block (773) is fixedly connected with a scraping block (775), and one side of the scraping block (775) is in contact with the side wall of the cleaning plate (767).

2. The high-performance distributed photovoltaic power station grid-connected protection device according to claim 1, characterized in that: The side wall of the moving block (773) is provided with a drying assembly (78), the drying assembly (78) comprises a connecting rod (781) fixedly connected to one side of the moving block (773), and the side of the working shell (3) close to the fixed plate (771) is fixedly connected with drying shells (782) at both ends.

3. The high-performance distributed photovoltaic power station grid-connected protection device according to claim 2, characterized in that: One side of the moving plate (783) is provided with a sliding groove (784), one end of the outer wall of the connecting rod (781) is slidably connected to the inner wall of the sliding groove (784), a limiting hole (789) is arranged on one side of the outer wall of the drying shell (782), and one end of the outer wall of the connecting rod (781) is slidably connected to the inner wall of the limiting hole (789). One side of the moving plate (783) away from the connecting rod (781) is fixedly connected with a return spring (785), and one end of the return spring (785) is fixedly connected to one side of the inner wall of the drying shell (782).

4. The high-performance distributed photovoltaic power station grid-connected protection device according to claim 3, characterized in that: The inner wall of the drying shell (782) close to the return spring (785) is fixedly connected with a second heater (786), one side of the outer wall of the drying shell (782) is communicated with a bend pipe (787), one end of the bend pipe (787) is communicated with an exhaust member (788), and one side of the outer wall of the exhaust member (788) is fixedly connected to the side wall of the drying shell (782).

5. The use of a high-performance distributed photovoltaic power station grid-connected protection device, using the high-performance distributed photovoltaic power station grid-connected protection device according to claim 4, characterized in that: The steps include, Step one: adjust the angle; Step two: clean the photovoltaic grid-connected (754); Step three: auxiliary cleaning; Step four: dry jet.

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