High-efficiency distributed photovoltaic power station grid-connected protection device and use method thereof

Abstract

The invention 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.The high-efficiency distributed photovoltaic power station grid connection protection device comprises a supporting shell, the top end of the supporting shell is rotationally connected with a rotating block, one end of the rotating block is fixedly connected with a working shell, and the bottom of the inner wall of the supporting shell is fixedly connected with an electric telescopic rod; a first vertical hole is formed in one side of the outer wall of the supporting shell, second vertical holes are formed in the two sides of the outer wall of the supporting shell correspondingly, when the sun rises, an electric telescopic rod is started, the electric telescopic rod drives a bearing block to descend, the bearing block drives a rotating plate to descend, and the rotating plate drives a fixing rod to descend; 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 circumferentially around the top end of the supporting shell, and the working shell drives the photovoltaic grid-connected unit to rotate circumferentially, so that the photovoltaic grid-connected unit can be subjected to angle adjustment along with the movement of sunlight, and the absorption efficiency of the photovoltaic grid-connected unit is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power station grid connection, and particularly to a high-efficiency distributed photovoltaic power station grid connection protection device and its usage method. Background Art

[0002] With the rapid development of society, energy has always been one of the biggest problems faced by people. As the limited energy is gradually decreasing, people need to find new energy sources for replacement. Solar energy, as a new type of clean energy, is utilized by people, which involves the photovoltaic grid connection of photovoltaic power stations. Photovoltaic grid connection means that the direct current generated by solar modules is converted into alternating current that meets the requirements of the commercial power grid through a grid-connected inverter and then directly connected to the public grid. However, there are still many deficiencies in the current photovoltaic grid connection of existing photovoltaic power stations.

[0003] Existing photovoltaic grid connections are usually installed outdoors to absorb sunlight. The prior art usually places the photovoltaic grid connection outdoors. When night falls, the dew and dust impurities generated at night will adhere to the outer surface of the photovoltaic grid connection, affecting the absorption effect of sunlight by the photovoltaic grid connection the next day and reducing the daylighting performance of the photovoltaic grid connection. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-efficiency distributed photovoltaic power station grid connection protection device and its usage method to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is a high-efficiency distributed photovoltaic power station grid connection protection device and its usage method, including a support shell. A rotating block is rotatably connected to the top of the support shell. One end of the rotating block is fixedly connected to a working shell. The bottom of the inner wall of the support shell is fixedly connected to an electric telescopic rod. A first vertical hole is opened on one side of the outer wall of the support shell. Second vertical holes are respectively opened on both sides of the outer wall of the support shell. It further includes a grid connection protection mechanism. The grid connection protection mechanism includes a bearing block fixedly connected to the top of the electric telescopic rod. One end of the bearing block is rotatably connected to a rotating plate. One end of the outer wall of the rotating plate is slidably connected to the inner wall of the first vertical hole. The top of the rotating plate is rotatably connected to a fixed rod. One end of the fixed rod is fixedly connected to one side of the outer wall of the working shell. Cross bars are respectively fixedly connected to both sides of the top of the support shell. A clamping assembly is arranged on the outer wall of the bearing block.

[0006] Further, the clamping assembly includes rotating rods rotatably connected to both sides of the bearing block. One end of the outer wall of the rotating rod is slidably connected to the inner wall of the second vertical hole. One end of the rotating rod away from the bearing block is rotatably connected to a slider. The inner wall of the slider is slidably connected to the outer wall of the cross bar. A semi-circular plate is fixedly connected to the top of the slider.

[0007] Further, a photovoltaic grid connection is fixedly connected to one side of the working shell away from the rotating block. A rotating ball is in contact with one side of the semi-circular plate. The outer wall of the rotating ball is rotationally connected to a round rod. One end of the round rod penetrates through the working shell and extends into the interior of the working shell. The end of the round rod away from the rotating ball is fixedly connected to a square plate. The outer wall of the square plate is slidably connected to the inner wall of the working shell. A spring is fixedly connected between the two square plates.

[0008] Further, a cleaning component is arranged on the inner wall of the working shell. The cleaning component includes a first heater fixedly connected to one side of the inner wall of the working shell. Two ends of the side of the square plate away from the round rod are respectively rotationally connected to a first rotating bar. The end of the first rotating bar away from the square plate is rotationally connected to a concave shell. There are two concave shells. A vertical rod is fixedly connected to the side wall of the concave shell. The top of the vertical rod penetrates through the working shell and extends to the outside of the working shell.

[0009] Further, an L-shaped plate is fixedly connected to the end of the vertical rod away from the concave shell. A strip-shaped 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-shaped shell. A number of round holes are opened on one side of the inner wall of the strip-shaped shell. Elastic tubes are communicated with both the top and the bottom of the working shell. The end of the elastic tube away from the working shell is communicated with one side of the inner wall of the strip-shaped shell.

[0010] Further, an auxiliary component is arranged on the side wall of the working shell. The auxiliary component includes fixing plates fixedly connected to both ends of the working shell near the photovoltaic grid connection. Two ends of one side of the fixing plate are respectively rotationally connected to a second rotating bar. The end of the second rotating bar away from the fixing plate is rotationally connected to a moving block. A limiting groove is opened on one side of the outer wall of the strip-shaped shell. One end of the outer wall of the moving block is slidably connected to the inner wall of the limiting 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.

[0011] Further, a drying component is arranged on the side wall of the moving block. The drying component includes a connecting rod fixedly connected to one side of the moving block. Drying shells are fixedly connected to both ends of the working shell near the fixing plate. A moving plate is slidably connected to the inner wall of the drying shell.

[0012] Further, a sliding groove is opened on one side of the moving plate. One end of the outer wall of the connecting rod is slidably connected to the inner wall of the sliding groove. A limiting hole is opened on one side of the outer wall of the drying shell. One end of the outer wall of the connecting rod is slidably connected to the inner wall of the limiting hole. A return spring is fixedly connected to the side of the moving plate away from the connecting rod. One end of the return spring is fixedly connected to one side of the inner wall of the drying shell.

[0013] Further, a second heater is fixedly connected to one side of the inner wall of the drying shell near the return spring. A bent pipe is communicated with one side of the outer wall of the drying shell. One end of the bent pipe is communicated with an exhaust part. One side of the outer wall of the exhaust part is fixedly connected to the side wall of the drying shell.

[0014] A method for using a grid-connected protection device for a high-efficiency distributed photovoltaic power station includes the following steps: Step 1: Adjust the angle; Step 2: Clean the photovoltaic grid connection; Step 3: Assist in cleaning; Step 4: Dry jet.

[0015] The present invention has the following beneficial effects: 1. In the present invention, 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. Since the rotating block rotates at the top of the support shell, the fixed rod drives the working shell and the rotating block to rotate circumferentially around the top of the support shell. The working shell drives the photovoltaic grid connection to rotate circumferentially, so that the photovoltaic grid connection can adjust the angle following the movement of the sun, improving the absorption efficiency of the photovoltaic grid connection. When the bearing block descends, the bearing block drives the rotating rod to descend. Limited by the cross bar, the rotating rod drives the slider to slide along the cross bar. The slider drives the semi-circular plate to move. The two semi-circular plates approach each other. During the movement of the semi-circular plate, it will contact the side wall of the rotating ball and squeeze the rotating ball. The rotating ball drives the round rod to move. The round rod drives the square plate to move. The square plate moves inside the working shell, so that the working shell and the photovoltaic grid connection in the angle adjustment are firmly clamped, preventing small-amplitude sliding when the photovoltaic grid connection adjusts the angle, and improving the stability of the photovoltaic grid connection to absorb sunlight from the side. When the semi-circular plate clamps, when the semi-circular plate contacts the rotating ball, because the rotating ball can rotate universally inside the round rod, when the photovoltaic grid connection adjusts the angle, the generation of friction can be reduced, further improving the stability of the photovoltaic grid connection to absorb sunlight.

[0016] 2. In the present 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. Since the vertical rod slides inside 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-shaped shell. The strip-shaped shell drives the cleaning plate to move. During the movement of the cleaning plate, it can clean the dew and impurities generated on the surface of the photovoltaic grid connection, improving the absorption effect of the photovoltaic grid connection on sunlight. Due to the setting of the first heater, the air flow inside the working shell is heated. When the two square plates approach each other, the hot air flow inside the working shell enters the inside of the elastic tube. The hot air flow enters the inside of the strip-shaped shell through the elastic tube. The hot air flow enters the inside of the round hole through the strip-shaped shell. The hot air flow jets and dries the cleaning plate through the round hole, improving the cleaning effect of the cleaning plate on the dew on the surface of the photovoltaic grid connection.

[0017] (3) In the present invention, during the movement of the strip-shaped shell towards the fixed plate, due to the reaction force of the fixed plate, the second rotating bar rotates circumferentially along the fixed plate. Due to the arrangement of the limiting groove on the strip-shaped shell, the second rotating bar drives the moving block to slide along the inner wall of the limiting groove, and 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 and cleaning the dust and impurities adhered to the cleaning plate during cleaning, improving the subsequent cleaning effect of the cleaning plate on the photovoltaic grid connection.

[0018] (4) In the present invention, during the movement of the moving block, the moving block drives the connecting rod to move, and the connecting rod drives the moving plate to move. Due to the arrangement of the second heater, the second heater heats up the air flow inside the drying shell. When the moving plate moves inside the drying shell, the hot air flow inside the drying shell enters the inside of the elbow pipe, and the hot air flow enters the inside of the exhaust part through the elbow pipe. The hot air flow jets and dries the surface of the photovoltaic grid connection through the exhaust part, drying the residual dew on the surface of the photovoltaic grid connection, preventing the residual dew from adhering to the dust and impurities scraped by the scraping block, and improving the efficiency of the photovoltaic grid connection absorbing sunlight from the side. When the sun disappears, the electric telescopic rod is started in reverse, so that the two L-shaped plates approach each other, thereby closing the surface of the photovoltaic grid connection, preventing impurities from adhering to the surface of the photovoltaic grid connection at night, and improving the stability of the photovoltaic grid connection absorbing sunlight after the sun appears.

[0019] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic top view structure diagram of the whole of the present invention; Figure 2 It is a schematic sectional view structure diagram of the whole of the present invention; Figure 3 It is a schematic sectional view structure diagram of the working shell of the present invention; Figure 4 It is a schematic front view structure diagram of the spring of the present invention; Figure 5 It is a schematic sectional view structure diagram of the drying shell of the present invention; Figure 6 It is a schematic front view structure diagram of the photovoltaic grid connection of the present invention; Figure 7 For the present invention Figure 3Enlarged view of A in the figure; Figure 8 For the present invention Figure 5 Enlarged view of B in the figure; Figure 9 For the present invention Figure 6 Enlarged view of C in the figure; Figure 10 Schematic structural diagram of the present invention.

[0022] In the accompanying drawings, the list of components represented by each reference numeral is as follows: In the figure: 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, cross bar; 75, clamping assembly; 76, cleaning assembly; 77, auxiliary assembly; 78, drying assembly; 751, rotating rod; 752, slider; 753, semi-circular plate; 754, photovoltaic grid connection; 755, rotating ball; 756, round rod; 757, square plate; 758, spring; 761, first heater; 762, first rotating bar; 763, concave shell; 764, vertical rod; 765, L-shaped plate; 766, strip-shaped shell; 767, cleaning plate; 768, round hole; 769, elastic tube; 771, fixing 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, reset spring; 786, second heater; 787, elbow pipe; 788, exhaust part. Specific embodiments

[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] Example 1, please refer to Figure 1 - Figure 10 As shown in the figure, the present invention is a high-efficiency distributed photovoltaic power station grid connection protection device and its use method, including a support shell 1, the top of the support shell 1 is rotatably connected to a rotating block 2, one end of the rotating block 2 is fixedly connected to a working shell 3, the bottom of the inner wall of the support shell 1 is fixedly connected to an electric telescopic rod 4, one side of the outer wall of the support shell 1 is provided with a first vertical hole 5, and both sides of the outer wall of the support shell 1 are respectively provided with a second vertical hole 6, and further includes; Grid connection protection mechanism 7, 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 fixed rod 73, one end of the fixed rod 73 is fixedly connected to the outer wall side of the working shell 3, cross bars 74 are respectively fixedly connected to both sides of the top end of the support shell 1, a clamping assembly 75 is arranged on the outer wall of the bearing block 71. When the semi-circular plate 753 clamps, when the semi-circular plate 753 contacts the rotating ball 755, because the rotating ball 755 can perform universal rotation within the inner wall of the round rod 756, so when the photovoltaic grid connection 754 adjusts the angle, the generation of friction can be reduced, and further the stability of the photovoltaic grid connection 754 absorbing sunlight is improved.

[0025] The clamping assembly 75 includes rotating rods 751 rotatably connected to both sides of the bearing block 71, the outer wall of 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 bearing 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 cross bar 74, and a semi-circular plate 753 is fixedly connected to the top of the slider 752.

[0026] One side of the working shell 3 away from the rotating block 2 is fixedly connected with a photovoltaic grid connection 754. When the sun rises, the electric telescopic rod 4 is started. The electric telescopic rod 4 drives the bearing block 71 to descend. The bearing block 71 drives the rotating plate 72 to descend. The rotating plate 72 drives the fixed rod 73 to descend. Since the rotating block 2 rotates on the top of the support shell 1, the fixed rod 73 drives the working shell 3 and the rotating block 2 to rotate circumferentially around the top of the support shell 1. The working shell 3 drives the photovoltaic grid connection 754 to rotate circumferentially, so that the photovoltaic grid connection 754 can adjust the angle following the movement of the sun, improving the absorption efficiency of the photovoltaic grid connection 754. One side of the semi-circular plate 753 is in contact with a rotating ball 755. The outer wall of the rotating ball 755 is rotatably connected with a round rod 756. One end of the round rod 756 penetrates through the working shell 3 and extends into the working shell 3. The end of the round rod 756 away from the rotating ball 755 is fixedly connected with a square plate 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. Limited by the cross bar 74, the rotating rod 751 drives the slider 752 to slide along the cross bar 74. The slider 752 drives the semi-circular plate 753 to move. The two semi-circular plates 753 move closer to each other. During the movement of the semi-circular 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 as to firmly clamp the working shell 3 and the photovoltaic grid connection 754 during angle adjustment, preventing small-amplitude sliding when the photovoltaic grid connection 754 adjusts the angle, and laterally improving the stability of the photovoltaic grid connection 754 to absorb sunlight. A spring 758 is fixedly connected between the two square plates 757.

[0027] Embodiment 2, a cleaning component 76 is arranged on the inner wall of the working shell 3. The cleaning component 76 includes a first heater 761 fixedly connected to one side of the inner wall of the working shell 3. Two ends of the side of the square plate 757 away from the round rod 756 are respectively rotatably connected with a first rotating bar 762. The end of the first rotating bar 762 away from the square plate 757 is rotatably connected with a concave shell 763. There are two concave shells 763. A vertical rod 764 is fixedly connected to the side wall of the concave shell 763. The top of the vertical rod 764 penetrates through the working shell 3 and extends to the outside of the working shell 3.

[0028] One end of the vertical rod 764 away from the concave shell 763 is fixedly connected with an L-shaped plate 765. 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. When the square plate 757 moves, the square plate 757 drives the first rotating bar 762 to move. The first rotating bar 762 drives the concave shell 763 to move. Since 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-shaped shell 766. The strip-shaped shell 766 drives the cleaning plate 767 to move. During the movement of the cleaning plate 767, it can clean the dew and impurities generated on the surface of the photovoltaic grid connection 754, improving the sunlight absorption effect of the photovoltaic grid connection 754. One side of the inner wall of the strip-shaped shell 766 is provided with a plurality of round holes 768. Both the top and bottom of the working shell 3 are communicated with an elastic tube 769. One end of the elastic tube 769 away from the working shell 3 is communicated with one side of the inner wall of the strip-shaped shell 766. Due to the setting of the first heater 761, the air flow inside the working shell 3 is heated. When the two square plates 757 approach each other, the hot air flow inside the working shell 3 enters the elastic tube 769. The hot air flow enters the strip-shaped shell 766 through the elastic tube 769. The hot air flow enters the round holes 768 through the strip-shaped shell 766. The hot air flow jets and dries the cleaning plate 767 through the round holes 768, improving the cleaning effect of the cleaning plate 767 on the dew on the surface of the photovoltaic grid connection 754.

[0029] An auxiliary component 77 is arranged on the side wall of the working shell 3. The auxiliary component 77 includes fixing plates 771 fixedly connected to both ends of the working shell 3 close to the photovoltaic grid connection 754. Two ends of one side of each fixing plate 771 are respectively rotatably connected with a second rotating bar 772. One end of the second rotating bar 772 away from the fixing plate 771 is rotatably connected with a moving block 773. A limiting groove 774 is formed on one side of the outer wall of the strip-shaped shell 766. 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. One side of the scraping block 775 is in contact with the side wall of the cleaning plate 767. When the strip-shaped shell 766 moves towards the fixing plate 771, due to the reaction force of the fixing plate 771, the second rotating bar 772 rotates circumferentially along the fixing plate 771. Due to the setting of the limiting groove 774 on the strip-shaped 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 of the scraping block 775, it will come into contact with the side wall of the cleaning plate 767, thereby scraping and cleaning the dust and impurities adhered to the cleaning plate 767 during cleaning, improving the subsequent cleaning effect of the cleaning plate 767 on the photovoltaic grid connection 754.

[0030] A drying component 78 is provided on the side wall of the moving block 773. The drying component 78 includes a connecting rod 781 fixedly connected to one side of the moving block 773. At both ends of the side of the working shell 3 close to the fixing plate 771, drying shells 782 are respectively fixedly connected. A moving plate 783 is slidably connected to the inner wall of the drying shell 782.

[0031] A sliding groove 784 is formed on one side of the moving plate 783. 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 formed on one side of the outer wall of the drying shell 782. One end of the outer wall 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 moving 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.

[0032] A second heater 786 is fixedly connected to one side of the inner wall of the drying shell 782 close to the return spring 785. A bent pipe 787 is communicated with one side of the outer wall of the drying shell 782. One end of the bent pipe 787 is communicated with an exhaust component 788. One side of 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. Due to the setting of the second heater 786, the second heater 786 heats up the air flow inside the drying shell 782. When the moving plate 783 moves inside the drying shell 782, the hot air flow inside the drying shell 782 enters the inside of the bent pipe 787. The hot air flow enters the inside of the exhaust component 788 through the bent pipe 787. The hot air flow jets and dries the surface of the photovoltaic grid connection 754 through the exhaust component 788, drying the dew remaining on the surface of the photovoltaic grid connection 754, preventing the dust and impurities scraped up by the scraping block 775 from adhering due to the remaining dew, and improving the sunlight absorption efficiency of the photovoltaic grid connection 754 to a certain extent.

[0033] A method for using an efficient distributed photovoltaic power station grid connection protection device includes the following steps: Step 1: Adjust the angle; Step 2: Clean the photovoltaic grid connection 754; Step 3: Assist in cleaning; Step 4: Dry and jet.

[0034] During use, when the sun rises, the electric telescopic rod 4 is started, 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 on the top of the supporting shell 1, the fixed rod 73 drives the working shell 3 and the rotating block 2 to rotate in a circle around the top of the supporting shell 1, and the working shell 3 drives the photovoltaic grid 754 to rotate in a circle, so that the photovoltaic grid 754 can adjust the angle with the movement of sunlight, thereby improving the absorption efficiency of the photovoltaic grid 754. When the bearing block 71 is descending, the bearing block 71 drives the rotating rod 751 to descend, and is limited by the cross bar 74. The rotating rod 751 drives the slider 752 to slide along the cross bar 74, and the slider 752 drives the semicircular plate 753 to move. The two semicircular plates 753 The semicircular plate 753 and the rotating ball 755 are moved closer to each other, and the semicircular plate 753 will come into contact with the side wall of the rotating ball 755 during the movement, squeezing the rotating ball 755, and the rotating ball 755 drives the round rod 756 to move, and the round rod 756 drives the square plate 757 to move, and the square plate 757 moves inside the working shell 3, so that the working shell 3 and the photovoltaic grid 754 in the angle adjustment are firmly clamped to prevent the photovoltaic grid 754 from sliding slightly when the angle is adjusted, and the stability of the photovoltaic grid 754 in absorbing sunlight is improved laterally. When the semicircular plate 753 is clamped and the semicircular plate 753 is in contact with the rotating ball 755, because the rotating ball 755 can be universally rotated on the inner wall of the round rod 756, when the photovoltaic grid 754 adjusts its angle, the friction force can be reduced, and the stability of the photovoltaic grid 754 in absorbing sunlight is further improved.

[0035] 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, and the vertical rod 764 drives the L-shaped plate 765 to move, and 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 754 can be cleaned, thereby improving the quality of the photovoltaic grid 754. The photovoltaic grid-connected device 754 has a higher absorption effect on sunlight. Due to the setting of the first heater 761, the air flow inside the working shell 3 is heated. When the two square plates 757 approach each other, the hot air flow inside the working shell 3 enters into the elastic tube 769, and the hot air flow enters into the strip shell 766 through the elastic tube 769. The hot air flow enters into the circular hole 768 through the strip shell 766. The hot air flow passes through the circular hole 768 to perform jet drying on the cleaning plate 767, thereby improving the cleaning effect of the cleaning plate 767 on dew on the surface of the photovoltaic grid-connected device 754.

[0036] When the strip-shaped shell 766 moves towards the fixed plate 771, it receives a reaction force from the fixed plate 771. The second rotating bar 772 rotates circumferentially along the fixed plate 771. Due to the arrangement of the limiting groove 774 in the strip-shaped 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 of the scraping block 775, it will come into contact with the side wall of the cleaning plate 767, thereby scraping and cleaning the dust and impurities adhering to the cleaning plate 767 during cleaning, improving the subsequent cleaning effect of the cleaning plate 767 on the photovoltaic grid connection 754.

[0037] 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. Due to the arrangement of the second heater 786, the second heater 786 heats up the air flow inside the drying shell 782. When the moving plate 783 moves inside the drying shell 782, the hot air flow inside the drying shell 782 enters the inside of the elbow pipe 787. The hot air flow passes through the elbow pipe 787 and enters the inside of the exhaust member 788. The hot air flow jets and dries the surface of the photovoltaic grid connection 754 through the exhaust member 788, drying the residual dew on the surface of the photovoltaic grid connection 754, preventing the residual dew from adhering to the dust and impurities scraped by the scraping block 775, and indirectly improving the sunlight absorption efficiency of the photovoltaic grid connection 754. When the sun disappears, the electric telescopic rod 4 is reversely started, so that the two L-shaped plates 765 move closer to each other, thereby closing the surface of the photovoltaic grid connection 754, preventing impurities from adhering to the surface of the photovoltaic grid connection 754 at night, and improving the sunlight absorption stability of the photovoltaic grid connection 754 after the sun appears.

[0038] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A high-efficiency distributed photovoltaic power station grid-connected protection device, characterized in that: The invention comprises a support shell (1), the top end of the support shell (1) is rotatably connected to a rotating block (2), one end of the rotating block (2) is fixedly connected to a working shell (3), the bottom of the inner wall of the support shell (1) is fixedly connected to an electric telescopic rod (4), one side of the outer wall of the support shell (1) is provided with a first vertical hole (5), and the two sides of the outer wall of the support shell (1) are respectively provided with second vertical holes (6), and further comprises: A grid-connected protection mechanism (7), the grid-connected protection mechanism (7) comprising a bearing block (71) fixedly connected to the top of the electric telescopic rod (4), one end of the bearing block (71) being rotatably connected to a rotating plate (72), one end of the outer wall of the rotating plate (72) being slidably connected to the inner wall of the first vertical hole (5), the top end of the rotating plate (72) being rotatably connected to a fixing rod (73), one end of the fixing rod (73) being fixedly connected to one side of the outer wall of the working shell (3), both sides of the top end of the supporting shell (1) being fixedly connected to cross rods (74), and the outer wall of the bearing block (71) being provided with a clamping assembly (75).

2. A high-efficiency distributed photovoltaic power station grid-connected protection device according to claim 1, characterized in that: The clamping assembly (75) comprises a rotating rod (751) rotatably connected to both sides of the bearing block (71); the outer wall of 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 bearing 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 cross bar (74); and the top of the slider (752) is fixedly connected to a semicircular plate (753).

3. A high-efficiency distributed photovoltaic power station grid-connected protection device according to claim 2, characterized in that: A photovoltaic grid-connected device (754) is fixedly connected to a side of the working shell (3) away from the rotating block (2); a rotating ball (755) is contacted and arranged on one side of the semicircular 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); one end of the round rod (756) away from the rotating ball (755) is fixedly connected to a square plate (757); the outer wall of the square plate (757) is slidably connected to the inner wall of the working shell (3); and a spring (758) is fixedly connected between the two square plates (757).

4. A high-efficiency distributed photovoltaic power station grid-connected protection device according to claim 3, characterized in that: The inner wall of the working shell (3) is provided with a cleaning assembly (76), and the cleaning assembly (76) comprises a first heater (761) fixedly connected to one side of the inner wall of the working shell (3); two ends of a side of the square plate (757) away from the round rod (756) are rotatably connected to first rotating bars (762), and one end of the first rotating bar (762) away from the square plate (757) is rotatably connected to a concave shell (763), and two concave shells (763) are provided, and a vertical rod (764) is fixedly connected to the side wall of the concave shell (763), and the top of the vertical rod (764) passes through the working shell (3) and extends to the outside of the working shell (3).

5. A high-efficiency distributed photovoltaic power station grid-connected protection device according to claim 4, characterized in that: An end of the vertical rod (764) away from the concave shell (763) is fixedly connected to an L-shaped plate (765), a side of the L-shaped plate (765) away from the vertical rod (764) is fixedly connected to a strip shell (766), a cleaning plate (767) is fixedly connected to one side of the outer wall of the strip shell (766), a plurality of circular holes (768) are provided on one side of the inner wall of the strip shell (766), the top and bottom of the working shell (3) are both connected to an elastic tube (769), and an end of the elastic tube (769) away from the working shell (3) is connected to one side of the inner wall of the strip shell (766).

6. A high-efficiency distributed photovoltaic power station grid-connected protection device according to claim 5, characterized in that: The side wall of the working shell (3) is provided with an auxiliary component (77), and the auxiliary component (77) comprises a fixing plate (771) fixedly connected to two ends of a side of the working shell (3) close to the photovoltaic grid (754), two ends of one side of the fixing plate (771) are rotatably connected to a second rotating bar (772), and one end of the second rotating bar (772) away from the fixing plate (771) is rotatably connected to a moving block (773), a limiting groove (774) is provided on one side of the outer wall of the strip 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), and one end of the moving block (773) is fixedly connected to a scraping block (775), and one side of the scraping block (775) contacts the side wall of the cleaning plate (767).

7. A high-efficiency distributed photovoltaic power station grid-connected protection device according to claim 6, characterized in that: A drying assembly (78) is provided on the side wall of the moving block (773), and the drying assembly (78) comprises a connecting rod (781) fixedly connected to one side of the moving block (773); two ends of a side of the working shell (3) close to the fixed plate (771) are respectively fixedly connected to drying shells (782); and the inner wall of the drying shell (782) is slidably connected to the moving plate (783).

8. A high-efficiency distributed photovoltaic power station grid-connected protection device according to claim 7, characterized in that: A sliding groove (784) is provided on one side of the movable plate (783); an outer wall of 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); an outer wall of 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 a side of the movable plate (783) away from the connecting rod (781); and one end of the return spring (785) is fixedly connected to a side of the inner wall of the drying shell (782).

9. A high-efficiency distributed photovoltaic power station grid-connected protection device according to claim 8, characterized in that: A second heater (786) is fixedly connected to one side of the inner wall of the drying shell (782) close to the return spring (785), and a curved pipe (787) is connected to one side of the outer wall of the drying shell (782). One end of the curved pipe (787) is connected to 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).

10. A method for using a high-efficiency distributed photovoltaic power station grid-connected protection device, using the high-efficiency distributed photovoltaic power station grid-connected protection device as claimed in claim 9, characterized in that: The following steps are included: Step 1: Adjust the angle; Step 2: Clean up the photovoltaic grid (754); Step 3: Auxiliary cleaning; Step 4: Dry air jet.

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