A distributed photovoltaic power station grid-connected protection device

Abstract

The present invention discloses a distributed photovoltaic power station grid-connected protection device, which relates to the technical field of power system protection and control, and comprises a base, on which an adjustment device, a protection device and a support device are arranged; wherein the adjustment device comprises a rotating motor 1, a slide plate, a slider, a fixing column, a screw rod, a support rod, a connecting block 1, a fixing rod, a connecting block 2, a mounting plate, a photovoltaic panel, a rolling shutter protection plate, a slide block, a receiver and a rotating motor 2; the angle of the photovoltaic panel is adjusted by setting the adjustment device; by adjusting the angle of the photovoltaic panel, the photovoltaic panel can be better faced to the sun, the light absorption can be maximized, the power generation efficiency can be improved, and the photovoltaic panel can be protected at the same time; under hail, strong wind or extreme weather conditions, the shield can provide additional protection for the photovoltaic panel and reduce the erosion of the photovoltaic panel by natural factors such as wind and sand.

Description

Technical Field

[0001] The present invention relates to the technical field of power system protection and control, and in particular to a distributed photovoltaic power station grid-connected protection device. Background Art

[0002] A distributed photovoltaic power station refers to a photovoltaic power generation system that is dispersed in the power system on the user side and connected to the grid. However, the grid-connected operation of a distributed photovoltaic power station involves many technical challenges, one of which is grid protection.

[0003] The patent with the patent announcement number CN210120516U relates to the field of power system protection and control technology, and specifically relates to a solar photovoltaic panel protection device, including a base and a fixing device, the top surface of the base is provided with a positioning plate, the positioning plate is provided with a plurality of slots, one end of the base is hinged with a fixing device, a fixing rod is installed below the fixing device, and an inclined rod is hinged on the fixing rod; the fixing device includes a groove and a protective upper shell, the left and right sides of the groove are provided with a limited step, and the upper part of the limited step is provided with a clamping block; the left and right sides of the groove are also provided with a raised part, and the two sides of the protective upper shell are provided with a recessed part, and the recessed part can be engaged with the raised parts on the left and right sides of the groove; the protective upper shell includes a light-transmitting layer and a protective layer. The photovoltaic module protection device described in the patent can achieve a better protection effect by utilizing the cooperation of the limited step, the clamping block and the protective upper shell.

[0004] In the above patent, a better protection effect can be achieved by using the mutual cooperation of the limiting steps, the clamps and the protective upper shell, but the current measuring equipment has the following problems: the angle of the photovoltaic panel directly affects its angle of receiving sunlight. If the angle of the photovoltaic panel is not appropriate, it may not receive the maximum amount of sunlight at the optimal angle, thereby reducing the power generation efficiency of the photovoltaic cell. In addition, if the surface of the photovoltaic panel is not protected in extreme weather such as hail, wind and sand, the surface of the photovoltaic panel may be scratched or worn, reducing the photoelectric conversion efficiency of the photovoltaic panel. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a distributed photovoltaic power station grid-connected protection device, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a distributed photovoltaic power station grid-connected protection device, including a base, above which are arranged an adjustment device, a protection device and a support device; wherein the adjustment device includes a rotating motor 1, a slide plate, a slider, a fixed column, a screw rod, a support rod, a connecting block 1, a fixed rod, a connecting block 2, a mounting plate, a photovoltaic panel, a rolling shutter protection plate, a slide block, a receiver and a rotating motor 2, wherein the rotating motor 1 is fixedly mounted on the rear side of the base, the slide plate is fixedly mounted on the top of the base, the slider is slidably mounted on the inner wall of the slide plate, the fixed column is fixedly mounted on the right side of the slider, the fixed column is slidably mounted on the inner wall of the slide plate, the screw rod is fixedly mounted on the output end of the rotating motor 1, the screw rod rotates and passes through the inner and outer walls of the base, and the slider is slidably mounted on the circumference of the screw rod The support rod is rotatably mounted on the circumferential surface of the fixed column, the connecting block 1 is rotatably mounted on the surface of the other side of the support rod, the fixed rod is fixedly mounted on the top of the base, the connecting block 2 is rotatably mounted on the inner wall of the fixed rod, the mounting plate is fixedly mounted on the top of the connecting block 1, the mounting plate is fixedly mounted on the top of the connecting block 2, the photovoltaic panel is arranged on the top of the mounting plate, the rolling shutter protection plate is arranged on the inner wall of the mounting plate, the slide block is fixedly mounted on the top of the mounting plate, the receiver is fixedly mounted on the top of the slide block, the rotating motor 2 is fixedly mounted on the right side of the mounting plate, and the rolling shutter protection plate is arranged at the output end of the rotating motor 2. The rotating motor 1 rotates to drive the screw rod to rotate and cooperate with the spiral groove, slider, fixed column, support rod, connecting block 1, mounting plate and connecting block 2 to adjust the angle of the photovoltaic panel.

[0007] According to the above technical solution, a spiral groove is provided on the circumferential surface of the screw rod, and the slider is threadedly connected to the spiral groove. The rotation of the screw rod drives the spiral groove to rotate, and the rotation of the spiral groove causes the slider to move forward along the circumferential surface of the screw rod. A pressure sensor is arranged inside the mounting plate, and the pressure sensor is electrically connected to a receiver, and the receiver is electrically connected to rotating motor 2. The rolling shutter protection plate is in contact with the slide block. When hit by external force, the pressure sensor is subjected to pressure and transmits a signal to the receiver. The receiver makes rotating motor 2 work, and the rotation of rotating motor 2 drives the rolling shutter protection plate to extend along the inner wall of the slide block until the entire photovoltaic panel is covered.

[0008] According to the above technical solution, the protection device includes a connecting plate, a sliding rod, a scraper and a collecting trough. The connecting plate is fixedly installed on the outer wall of the connecting block one, the connecting plate is fixedly installed on the outer wall of the connecting block two, the sliding rod is slidably installed on the inner wall of the slide block, the scraper is fixedly installed on the bottom of the sliding rod, and the collecting trough is slidably installed on the inner wall of the mounting plate. The rolling shutter protection plate moves to touch the sliding rod so that the sliding rod moves along the inner wall of the slide block. The movement of the sliding rod drives the movement of the scraper, and the movement of the scraper drives the brush to clean the surface of the photovoltaic panel.

[0009] According to the above technical solution, a brush is provided at the bottom of the scraper, the brush is in contact with the photovoltaic panel, a spring No. 1 is provided between the slide rod and the slide block, a groove is provided on the right side of the collecting trough, and the cleaned impurities will be transported to the collecting trough through the scraper.

[0010] According to the above technical scheme, the protection device also includes a placement block, an insertion block, a T-shaped block, a receiving block, a No. 2 spring and a latch. The placement block is fixedly installed on the inner wall of the slide block, the insertion block is slidably installed on the inner wall of the placement block, the T-shaped block is slidably installed on the inner wall of the placement block, and the receiving block is slidably installed on the inner wall of the placement block. The No. 2 spring is arranged between the insertion block and the receiving block, and the latch slides through the inner and outer walls of the placement block. The front side of the insertion block is arranged as an inclined surface, and the latch is pressed to make the T-shaped block contact with the inclined surface of the T-shaped block so that the T-shaped block moves to the right. The movement of the T-shaped block drives the receiving block to move, and the movement of the receiving block will stretch the No. 2 spring. When it is stretched to a certain extent, the No. 2 spring pulls the insertion block to move, so that the insertion block is disengaged from the groove and loses the limit on the collection tank. Only then can the collection tank be taken out for processing.

[0011] According to the above technical solution, the protective device also includes a receiving rod and a round rod. The receiving rod is fixedly installed at the bottom of the connecting plate, and the round rod is fixedly installed at the bottom of the connecting plate. The rotation of the connecting plate drives the receiving rod to rotate and the round rod to move.

[0012] The cam is fixedly mounted on the left side of the support rod, and the cam is fixedly mounted on the circumferential surface of the cam. The cam is fixedly mounted on the left side of the support rod, and the cam is fixedly mounted on the circumferential surface of the cam. The cam is fixedly mounted on the inner wall of the cam. The cam has a limit groove on the left side of the cam, a reset groove on the left side of the cam, the limit groove contacts the limit groove, a lifting groove on the left side of the cam, and a toggle groove on the left side of the cam. When the support rod is rotated to a certain angle, the cam will slide upward along the cam. At this time, the cam is driven to move and cooperate with the cam, the limit groove, the fixed button 1, the toggle rod, the toggle groove, the cam, the toggle spring, the reset groove, the lifting groove and the lifting groove on the other side to support the connecting plate.

[0013] According to the above technical solution, the supporting device also includes a fixed cylinder, a piston block and a No. 3 spring. The fixed cylinder is fixedly installed on the surface of the rotating rod, the piston block is fixedly installed on the bottom of the round rod, and the piston block is slidably installed on the inner wall of the fixed cylinder. A slot is provided at the bottom of the piston block. The No. 3 spring is arranged between the fixed cylinder and the connecting plate. Hydraulic oil is arranged inside the fixed cylinder, and then the connecting plate is rotated downward to make the round rod move downward to cooperate with the piston block and the hydraulic oil, so that the hydraulic oil flows into the top of the piston block through the slot. Because the slot is small, the reflux speed of the hydraulic oil is slowed down, that is, the movement speed of the round rod is slowed down, that is, the reset speed of the No. 3 spring is slowed down, which plays a buffering role on the speed at which the connecting plate rotates downward.

[0014] The present invention provides a distributed photovoltaic power station grid-connected protection device, which has the following beneficial effects:

[0015] (1) The invention, through the setting of the adjustment device, realizes the adjustment of the angle of the photovoltaic panel by rotating the first rotating motor to drive the screw to rotate in coordination with the spiral groove, the slider, the fixing column, the support rod, the first connecting block, the mounting plate and the second connecting block. By adjusting the angle of the photovoltaic panel, it can be made to face the sun better, maximize the light absorption and improve the power generation efficiency. This adjustment can be made based on the geographical location, seasonal changes and time to achieve the best energy conversion effect. The movement of the mounting plate drives the movement of the rolling shutter protection plate. When it is hit by an external force, the pressure sensor is subjected to pressure and transmits a signal to the receiver. The receiver causes the second rotating motor to rotate and drive the rolling shutter protection plate to extend along the inner wall of the slide block until the entire photovoltaic panel is covered, thereby protecting the photovoltaic panel. Under hail, strong wind or extreme weather conditions, the shield can provide additional protection for the photovoltaic panel and reduce the erosion of the photovoltaic panel by natural factors such as wind and sand.

[0016] (2) The invention, through the setting of the protection device, realizes cleaning the surface of the photovoltaic panel by moving the rolling shutter protection plate to touch the sliding rod, the slide block, the scraper and the brush. Cleaning the photovoltaic panel can remove pollutants such as dust and bird droppings, ensure that the sunlight is irradiated to the photovoltaic panel to the maximum extent, thereby improving its power generation efficiency and reducing the corrosion and wear of the photovoltaic panel material. The cleaned impurities will be transported to the collection tank by the scraper. The collection tank can be taken out for processing by pressing the pin in conjunction with the T-shaped block, the receiving block, the No. 2 spring and the plug block. The quick disassembly and installation make the inspection and cleaning of the collection tank more convenient, which helps to maintain its normal operation and cleanliness.

[0017] (3) The invention, through the setting of the supporting device, when the receiving rod is rotated to a certain angle, it will slide upward along the rotating rod, and at this time drive the fixing button 2 to move to cooperate with the rotating button, the limit rod, the fixing button 1, the toggle rod, the toggle groove, the No. 1 torsion spring, the reset groove, the pulling groove and the pulling groove on the other side to support the connecting plate, and then the connecting plate is rotated downward to make the round rod move downward to cooperate with the piston block and the hydraulic oil, so that the hydraulic oil flows into the top of the piston block through the slot. Because the slot is small, the reflux speed of the hydraulic oil is slowed down, that is, the movement speed of the round rod is slowed down, that is, the reset speed of the No. 3 spring is slowed down, which plays a buffering role on the speed of the connecting plate rotating downward. After adjusting the angle of the photovoltaic panel, the supporting device can provide the necessary stability for the photovoltaic panel to prevent it from shifting or tilting under the action of wind, rain or other external forces, thereby ensuring the safety and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the position structure of the slide plate and the rotating rod of the present invention;

[0020] Figure 3 It is a schematic diagram of a partial cross-sectional structure of the regulating device of the present invention;

[0021] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the protection device of the present invention;

[0022] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure in the middle;

[0023] Figure 6 This is a schematic diagram of the position structure of the placement block and the chute block of the present invention;

[0024] Figure 7 This is a schematic diagram of the collecting tank position structure of the present invention;

[0025] Figure 8 It is a schematic diagram of a partial cross-sectional structure of the support device of the present invention;

[0026] Fig. 9 It is a schematic diagram of the position structure of the rotating rod of the present invention;

[0027] Fig.10 For the present invention Fig. 9 A magnified schematic diagram of structure B in the middle.

[0028] In the figure: 1, base; 10, rotating motor 1; 11, slide plate; 12, slider; 13, fixed column; 14, screw rod; 15, support rod; 16, connecting block 1; 17, fixed rod; 18, connecting block 2; 19, mounting plate; 110, photovoltaic panel; 111, roller shutter protection plate; 112, slide block; 113, receiver; 114, rotating motor 2; 20, connecting plate; 21, slide rod; 22, scraper; 23, collecting tank; 24, placement block; 25, plug block; 26, T-shaped block; 27, receiving block; 28, spring No. 2; 29, latch; 210, receiving rod; 211, round rod; 30, rotating rod; 31, fixing button 1; 32, toggle rod; 33, fixing button 2; 34, rotating button; 35, limit rod; 36, fixing cylinder; 37, piston block; 38, spring No. 3. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 5An embodiment of the present invention is: a distributed photovoltaic power station grid-connected protection device, including a base 1, an adjustment device is arranged above the base 1, the adjustment device includes a rotating motor 10, a slide plate 11, a slider 12, a fixed column 13, a screw 14, a support rod 15, a connecting block 16, a fixed rod 17, a connecting block 2 18, a mounting plate 19, a photovoltaic panel 110, a rolling shutter protection plate 111, a slide block 112, a receiver 113 and a rotating motor 2 114, the rotating motor 10 is fixedly mounted on the rear side of the base 1, the slide plate 11 is fixedly mounted on the top of the base 1, the slider 12 is slidably mounted on the inner wall of the slide plate 11, the fixed column 13 is fixedly mounted on the right side of the slider 12, the fixed column 13 is slidably mounted on the inner wall of the slide plate 11, the screw 14 is fixedly mounted on the output end of the rotating motor 10, the screw 14 rotates and passes through the inner and outer walls of the base 1, the slider 12 is slidably mounted on the circumferential surface of the screw 14, and one side of the support rod 15 is rotatably mounted The circumferential surface of the fixed column 13, the connecting block 16 is rotatably mounted on the surface on the other side of the support rod 15, the fixing rod 17 is fixedly mounted on the top of the base 1, the connecting block 2 18 is rotatably mounted on the inner wall of the fixing rod 17, the mounting plate 19 is fixedly mounted on the top of the connecting block 16, the mounting plate 19 is fixedly mounted on the top of the connecting block 2 18, the photovoltaic panel 110 is arranged on the top of the mounting plate 19, the rolling shutter protection plate 111 is arranged on the inner wall of the mounting plate 19, the slide block 112 is fixedly mounted on the top of the mounting plate 19, the receiver 113 is fixedly mounted on the top of the slide block 112, the rotating motor 2 114 is fixedly mounted on the right side of the mounting plate 19, and the rolling shutter protection plate 111 is arranged on the output end of the rotating motor 2 114. By adjusting the angle of the photovoltaic panel 110, it can be better faced to the sun, maximize light absorption, and improve power generation efficiency. This adjustment can be made based on geographical location, seasonal changes and time to achieve the best energy conversion effect.

[0031] A spiral groove is provided on the circumferential surface of the screw rod 14, the slider 12 is threadedly connected to the spiral groove, a pressure sensor is arranged inside the mounting plate 19, the pressure sensor is electrically connected to the receiver 113, the receiver 113 is electrically connected to the rotating motor 114, the rolling shutter protection plate 111 is in contact with the slide block 112, so as to protect the photovoltaic panel 110. In the case of hail, strong wind or extreme weather conditions, the shield can provide additional protection for the photovoltaic panel 110 and reduce the erosion of the photovoltaic panel 110 by natural factors such as wind and sand.

[0032] The protective device includes a connecting plate 20, a slide bar 21, a scraper 22 and a collecting trough 23. The connecting plate 20 is fixedly installed on the outer wall of the connecting block 16, the connecting plate 20 is fixedly installed on the outer wall of the connecting block 2 18, the slide bar 21 is slidably installed on the inner wall of the slide block 112, the scraper 22 is fixedly installed on the bottom of the slide bar 21, and the collecting trough 23 is slidably installed on the inner wall of the mounting plate 19. Cleaning the photovoltaic panel 110 can remove pollutants such as dust and bird droppings, ensure that sunlight is irradiated to the photovoltaic panel 110 to the maximum extent, thereby improving its power generation efficiency and reducing corrosion and wear of the photovoltaic panel 110 material. The cleaned impurities will be transported to the collecting trough 23 through the scraper 22.

[0033] A brush is provided at the bottom of the scraper 22 , and the brush contacts the photovoltaic panel 110 . A spring No. 1 is provided between the slide bar 21 and the slide block 112 , and the slide bar 21 is reset by the spring No. 1 . A groove is provided on the right side of the collecting tank 23 .

[0034] When the present embodiment is working, the rotation of the rotating motor 10 drives the screw rod 14 to rotate, the rotation of the screw rod 14 drives the spiral groove to rotate, the rotation of the spiral groove causes the slider 12 to move forward along the circumferential surface of the screw rod 14, the movement of the slider 12 drives the fixed column 13 to move, the movement of the fixed column 13 drives the support rod 15 to rotate upward, the rotation of the support rod 15 drives the connecting block 16 to rotate upward, the movement of the connecting block 16 drives the mounting plate 19 to rotate upward, the mounting plate 19 rotates upward and drives the connecting block 2 18 to rotate, and at the same time drives the photovoltaic panel 110 to move, so as to adjust the angle of the photovoltaic panel 110. By adjusting the angle of the photovoltaic panel 110, it can be made to face the sun better, maximize light absorption, and improve power generation efficiency. This adjustment can be based on geographical location, seasonal changes and The movement of the mounting plate 19 drives the rolling shutter protection plate 111 to move, and at the same time drives the slide block 112 to move and drives the rotating motor 114 to move. The movement of the slide block 112 drives the receiver 113 to move. When hit by an external force, the pressure sensor is subjected to pressure and transmits a signal to the receiver 113. The receiver 113 enables the rotating motor 114 to work. The rotating motor 114 rotates and drives the rolling shutter protection plate 111 to extend along the inner wall of the slide block 112 until the entire photovoltaic panel 110 is covered, thereby protecting the photovoltaic panel 110. Under hail, strong winds or extreme weather conditions, the cover can provide additional protection for the photovoltaic panel 110 and reduce the erosion of the photovoltaic panel 110 by natural factors such as wind and sand.

[0035] See also Figure 1-Figure 10On the basis of the above embodiment, in another embodiment of the present invention, a protective device and a supporting device are arranged above the base 1, and the protective device also includes a placement block 24, an insertion block 25, a T-shaped block 26, a receiving block 27, a No. 2 spring 28 and a latch 29. The placement block 24 is fixedly installed on the inner wall of the slide block 112, the insertion block 25 is slidably installed on the inner wall of the placement block 24, the T-shaped block 26 is slidably installed on the inner wall of the placement block 24, the receiving block 27 is slidably installed on the inner wall of the placement block 24, and the No. 2 spring 28 is arranged between the insertion block 25 and the receiving block 27. The insertion block is reset by the arranged No. 2 spring 28, and the latch 29 slides through the inner and outer walls of the placement block 24. The front side of the insertion block 25 is arranged as an inclined surface. Quick disassembly and installation make it more convenient to inspect and clean the collection tank 23, which helps to maintain its normal operation and cleanliness.

[0036] The protection device also includes a receiving rod 210 and a round rod 211. The receiving rod 210 is fixedly installed at the bottom of the connecting plate 20, and the round rod 211 is fixedly installed at the bottom of the connecting plate 20. The receiving rod 210 and the round rod 211 can provide auxiliary support to the connecting plate 20.

[0037] The supporting device includes a rotating rod 30, a fixing button 1 31, a toggle rod 32, a fixing button 2 33, a rotating button 34 and a limiting rod 35. The rotating rod 30 is rotatably mounted on the inner wall of the slide plate 11, the fixing button 1 31 is fixedly mounted on the left side of the receiving rod 210, the toggle rod 32 is rotatably mounted on the circumferential surface of the fixing button 1 31, and a No. 1 torsion spring is arranged between the toggle rod 32 and the fixing button 1 31. The toggle rod 32 is reset by the arranged No. 1 torsion spring. The fixing button 2 33 is fixedly mounted on the left side of the receiving rod 210. The movable button 34 is rotatably mounted on the circumferential surface of the fixed button 33, the limiting rod 35 is fixedly mounted on the inner wall of the rotating button 34, a limiting groove is opened on the left side of the rotating rod 30, a reset groove is opened on the left side of the rotating rod 30, the limiting rod 35 contacts the limiting groove, a pulling groove is opened on the left side of the rotating button 34, and a toggle groove is opened on the left side of the rotating button 34. The supporting device can provide the necessary stability for the photovoltaic panel 110 to prevent it from shifting or tilting under the action of wind, rain or other external forces, thereby ensuring the safety and reliability of the system.

[0038] The supporting device also includes a fixed cylinder 36, a piston block 37 and a No. 3 spring 38. The fixed cylinder 36 is fixedly installed on the surface of the rotating rod 30, the piston block 37 is fixedly installed on the bottom of the round rod 211, the piston block 37 is slidably installed on the inner wall of the fixed cylinder 36, and a slot is provided at the bottom of the piston block 37. The No. 3 spring 38 is arranged between the fixed cylinder 36 and the connecting plate 20. Buffering is achieved by the arranged No. 3 spring 38. Hydraulic oil is arranged inside the fixed cylinder 36 to slow down the moving speed of the round rod 211, that is, to slow down the reset speed of the No. 3 spring 38.

[0039] When the present embodiment is working, the rolling shutter protection plate 111 moves to touch the slide bar 21, so that the slide bar 21 moves along the inner wall of the slide groove block 112. The movement of the slide bar 21 drives the scraper 22 to move. The movement of the scraper 22 drives the brush to clean the surface of the photovoltaic panel 110. Cleaning the photovoltaic panel 110 can remove pollutants such as dust and bird droppings, ensuring that sunlight is irradiated to the photovoltaic panel 110 to the maximum extent, thereby improving its power generation efficiency and reducing corrosion and wear of the photovoltaic panel 110 material. The cleaned impurities will be transported to the collection tank 23 through the scraper 22. By pressing the latch 29 to make it contact with the inclined surface of the T-shaped block 26, the T-shaped block 26 moves to the right. The movement of the T-shaped block 26 drives the receiving block 27 to move, and the movement of the receiving block 27 will stretch the No. 2 spring 28. When stretched to a certain extent, the second spring 28 pulls the plug block 25 to move, so that the plug block 25 is out of the groove and loses the limit on the collection groove 23. Only then can the collection groove 23 be taken out for processing. When installing the collection groove 23, the collection groove 23 is inserted into the inner wall of the mounting plate 19. At this time, the front end of the collection groove 23 will contact the inclined surface of the plug block 25, so that the plug block 25 moves toward the inside of the placement block 24 and compresses the second spring 28. When the groove and the plug block 25 are at the same level, the second spring 28 is released and drives the plug block 25 to be inserted into the groove. At this time, the installation of the collection groove 23 can be completed. The quick disassembly and installation make it more convenient to check and clean the collection groove 23, which helps to maintain its normal operation and cleanliness.

[0040] The rotation of the connecting plate 20 drives the receiving rod 210 to rotate and drives the round rod 211 to move. The round rod 211 moves and drives the piston block 37 to move, and also drives the No. 3 spring 38 to stretch. The rotation of the receiving rod 210 drives the rotating rod 30 to rotate. The rotation of the rotating rod 30 drives the fixed cylinder 36 to rotate. When the receiving rod 210 rotates to a certain angle, it will slide upward along the rotating rod 30. At this time, it drives the fixed button 2 33 to move. The movement of the fixed button 2 33 drives the rotating button 34 to move. The movement of the rotating button 34 drives the limit rod 35 along the limit When the locking cam 32 is in contact with the locking cam 35, the locking cam 35 moves upwards through the locking cam 35 and is parallel to the locking cam 210 and in contact with the locking cam 210, thereby driving the locking cam 34 to be parallel to the locking cam 210. At this time, the locking cam 32 is inserted into the lifting groove to realize the rotation of the locking cam 35. The button 34 is pulled up, so that the rotating button 34 always keeps parallel with the receiving rod 210. At this time, the receiving rod 210 can slide downward at will until the limit rod 35 contacts the lifting groove on the other side. After the contact, the limit rod 35 rotates downward to disengage from the reset groove. At this time, the limit rod 35 drives the rotating button 34 to reset. The rotating button 34 is reset so that the toggle rod 32 disengages from the lifting groove and contacts the toggle groove. At this time, the limit rod 35 can contact the limit groove again and establish support. The connecting plate 20 rotates downward to make the round rod 211 move downward, and the movement of the round rod 211 drives the piston block 37 moves, and the movement of the piston block 37 squeezes the hydraulic oil, causing the hydraulic oil to flow into the top of the piston block 37 through the slot. Because the slot is small, the return speed of the hydraulic oil is slowed down, that is, the movement speed of the round rod 211 is slowed down, that is, the reset speed of the third spring 38 is slowed down, and the speed at which the connecting plate 20 rotates downward is buffered. After adjusting the angle of the photovoltaic panel 110, the supporting device can provide the photovoltaic panel 110 with necessary stability to prevent it from shifting or tilting under the action of wind, rain or other external forces, thereby ensuring the safety and reliability of the system.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distributed photovoltaic power station grid-connected protection device, comprising a base (1), characterized in that: An adjusting device, a protecting device and a supporting device are arranged above the base (1); The adjusting device comprises a rotating motor (10), a slide plate (11), a slider (12), a fixing column (13), a screw (14), a support rod (15), a connecting block (16), a fixing rod (17), a connecting block (18), a mounting plate (19), a photovoltaic panel (110), a rolling shutter protection plate (111), a slide block (112), a receiver (113) and a rotating motor (114), wherein the rotating motor (10) is fixedly mounted on the rear side of the base (1), the slide plate (11) is fixedly mounted on the top of the base (1), the slider (12) is slidably mounted on the inner wall of the slide plate (11), the fixing column (13) is fixedly mounted on the right side of the slider (12), the fixing column (13) is slidably mounted on the inner wall of the slide plate (11), the screw (14) is fixedly mounted on the output end of the rotating motor (10), the screw (14) rotates and passes through the inner and outer walls of the base (1), and the slider (12) is slidably mounted on the screw ( 14), one side of the support rod (15) is rotatably mounted on the circumferential surface of the fixed column (13), the connecting block one (16) is rotatably mounted on the surface of the other side of the support rod (15), the fixed rod (17) is fixedly mounted on the top of the base (1), the connecting block two (18) is rotatably mounted on the inner wall of the fixed rod (17), the mounting plate (19) is fixedly mounted on the top of the connecting block one (16), the mounting plate (19) is fixedly mounted on the top of the connecting block two (18), the photovoltaic panel (110) is arranged on the top of the mounting plate (19), the rolling curtain protection plate (111) is arranged on the inner wall of the mounting plate (19), the chute block (112) is fixedly mounted on the top of the mounting plate (19), the receiver (113) is fixedly mounted on the top of the chute block (112), the rotating motor two (114) is fixedly mounted on the right side of the mounting plate (19), and the rolling curtain protection plate (111) is arranged at the output end of the rotating motor two (114); The protective device comprises a connecting plate (20), a sliding rod (21), a scraper (22) and a collecting trough (23); the connecting plate (20) is fixedly mounted on the outer wall of the first connecting block (16); the bottom of the connecting plate (20) is fixedly mounted on the outer wall of the second connecting block (18); the sliding rod (21) is slidably mounted on the inner wall of the sliding trough block (112); the scraper (22) is fixedly mounted on the bottom of the sliding rod (21); and the collecting trough (23) is slidably mounted on the inner wall of the mounting plate (19); The protection device further comprises a receiving rod (210) and a round rod (211), wherein the receiving rod (210) is fixedly mounted on the bottom of the connecting plate (20), and the round rod (211) is fixedly mounted on the bottom of the connecting plate (20); The supporting device comprises a rotating rod (30), a fixing button 1 (31), a toggle rod (32), a fixing button 2 (33), a rotating button (34) and a limiting rod (35), wherein the rotating rod (30) is rotatably mounted on the inner wall of the slide slot plate (11), the fixing button 1 (31) is fixedly mounted on the left side of the receiving rod (210), the toggle rod (32) is rotatably mounted on the circumferential surface of the fixing button 1 (31), and a first torsion spring is arranged between the toggle rod (32) and the fixing button 1 (31). The second fixing button (33) is fixedly mounted on the left side of the receiving rod (210); the rotating button (34) is rotatably mounted on the circumferential surface of the second fixing button (33); the limiting rod (35) is fixedly mounted on the inner wall of the rotating button (34); a limiting groove is provided on the left side of the rotating rod (30); a reset groove is provided on the left side of the rotating rod (30); the limiting rod (35) contacts the limiting groove; a pulling groove is provided on the left side of the rotating button (34); and a toggle groove is provided on the left side of the rotating button (34).

2. A distributed photovoltaic power station grid-connected protection device according to claim 1, characterized in that: The circumferential surface of the screw rod (14) is provided with a spiral groove, the slider (12) is threadedly connected to the spiral groove, a pressure sensor is arranged inside the mounting plate (19), the pressure sensor is electrically connected to a receiver (113), the receiver (113) is electrically connected to a second rotating motor (114), and the rolling curtain protection plate (111) is in contact with a slide block (112).

3. A distributed photovoltaic power station grid-connected protection device according to claim 1, characterized in that: A brush is provided at the bottom of the scraper (22), the brush is in contact with the photovoltaic panel (110), a spring No. 1 is provided between the slide bar (21) and the slide block (112), and a groove is provided on the right side of the collection groove (23).

4. A distributed photovoltaic power station grid-connected protection device according to claim 3, characterized in that: The protection device further comprises a placement block (24), an insert block (25), a T-shaped block (26), a receiving block (27), a second spring (28) and a latch (29); the placement block (24) is fixedly mounted on the inner wall of the slide block (112); the insert block (25) is slidably mounted on the inner wall of the placement block (24); the T-shaped block (26) is slidably mounted on the inner wall of the placement block (24); the receiving block (27) is slidably mounted on the inner wall of the placement block (24); the second spring (28) is arranged between the insert block (25) and the receiving block (27); the latch (29) slidably penetrates the inner and outer walls of the placement block (24); and the front side of the insert block (25) is arranged as an inclined surface.

5. A distributed photovoltaic power station grid-connected protection device according to claim 1, characterized in that: The supporting device further comprises a fixed cylinder (36), a piston block (37) and a No. 3 spring (38); the fixed cylinder (36) is fixedly mounted on the surface of the rotating rod (30); the piston block (37) is fixedly mounted on the bottom of the round rod (211); the piston block (37) is slidably mounted on the inner wall of the fixed cylinder (36); a slot is provided at the bottom of the piston block (37); the No. 3 spring (38) is arranged between the fixed cylinder (36) and the connecting plate (20); and hydraulic oil is arranged inside the fixed cylinder (36).

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