A self-cleaning solar photovoltaic panel protection device

Abstract

The present invention relates to the technical field of photovoltaic panel body protection, and discloses a self-cleaning solar photovoltaic panel protection device, comprising a photovoltaic panel body, a dual-axis motor, a transmission unit, a snow removal unit, a control unit, and a drive unit; wherein, first mounting plates are fixed on both sides of the photovoltaic panel body, a second mounting plate is fixed on the end of the two first mounting plates away from the photovoltaic panel body, and a third mounting plate is fixed on the four corners of the photovoltaic panel body; wherein, the dual-axis motor is mounted on the side of the photovoltaic panel body; wherein, the transmission unit is composed of two transmission assemblies, and the two transmission assemblies are respectively arranged on both sides of the photovoltaic panel body. The present invention drives the first mounting seat to move by two first transmission belts, and then drives the first mounting bar and the snow removal cloth to move by a sliding rod, thereby achieving effective cleaning of snow on the surface of the photovoltaic panel body, effectively coping with snow of different thicknesses, and improving cleaning efficiency and effect.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic panel body protection, and in particular to a self-cleaning solar photovoltaic panel protection device. Background Art

[0002] Snow removal and protection of solar panels is a key measure to ensure the efficient operation of solar power generation systems in winter. In winter, snowfall will cover the solar panels, affecting their ability to absorb sunlight and thus reducing power generation efficiency. Therefore, it is crucial to take effective snow removal and protection measures.

[0003] After searching, the Chinese patent with the announcement number CN212486453U discloses a photovoltaic panel body with a snow removal device, including a photovoltaic panel body group body and a snow removal device installed on the photovoltaic panel body group body, the snow removal device includes an upper rotating shaft, a lower rotating shaft, a rotating shaft bracket, a synchronous wheel, a synchronous belt, a snow scraper, a snow scraper pull-down mechanism and a snow scraper rebound mechanism, wherein the top and bottom of the photovoltaic panel body group body are respectively provided with an upper rotating shaft and a lower rotating shaft, and a synchronous wheel is fixed at each end of the upper rotating shaft and the lower rotating shaft. The two synchronous wheels located on the same side of the photovoltaic panel body group body are synchronously connected by a synchronous belt, and the two ends of the snow scraper are respectively fixed to the two synchronous belts. The above scheme utilizes the rotating shaft, the synchronous wheel, the synchronous belt, the snow scraper and the snow scraper pull-down mechanism to achieve simultaneous snow removal of multiple photovoltaic panel bodies. The snow scraper rebound mechanism enables the snow scraper to automatically return to the initial position at the top of the photovoltaic panel body group body, without the need for manual operation by the staff, which greatly improves the snow removal efficiency and thus improves the photoelectric conversion efficiency. However, the above scheme still has the following shortcomings when used in practice:

[0004] The above scheme uses a simple scraping action to scrape off the snow layer covering the surface of the photovoltaic panel body. The scraping action is achieved by a scraping strip, and the scraping strip is slender as a whole. When using a slender scraping strip to scrape off the snow layer on the surface of the photovoltaic panel body, due to its shape limitation, the contact area with the snow layer is relatively small. In this case, when the snow layer is thick or icy, the scraping strip may not generate enough friction to effectively scrape off the snow layer, but simply pass through the gap between the snow layer and the photovoltaic panel body, thereby failing to achieve the expected effect of thoroughly cleaning the surface of the photovoltaic panel body.

[0005] Therefore, it is necessary to design a self-cleaning solar photovoltaic panel protection device to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a self-cleaning solar photovoltaic panel protection device.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A self-cleaning solar photovoltaic panel protection device includes a photovoltaic panel body, a dual-axis motor, a transmission unit, a snow removal unit, a control unit and a drive unit;

[0009] Wherein, first mounting plates are fixed on both sides of the photovoltaic panel body, second mounting plates are fixed on one end of the two first mounting plates away from the photovoltaic panel body, and third mounting plates are fixed on the four corners of the photovoltaic panel body;

[0010] Wherein, the dual-axis motor is installed on the side of the photovoltaic panel body;

[0011] Wherein, the transmission unit is composed of two transmission assemblies, and the two transmission assemblies are respectively arranged on both sides of the photovoltaic panel body;

[0012] The snow removal unit is composed of a front-end assembly, a rear-end assembly, and a snow removal cloth. The front-end assembly includes a first mounting bar, the rear-end assembly includes a second mounting bar, and the snow removal cloth is fixed between the first mounting bar and the second mounting bar. When the transmission unit is in operation, the snow removal cloth moves around the photovoltaic panel body.

[0013] Wherein, the control unit is arranged on one of the second mounting plates;

[0014] The driving unit is composed of two driving units, and the two driving units are respectively connected to the two output shafts of the dual-axis motor.

[0015] As a preferred technical solution of the present invention, the transmission assembly includes two first transmission wheels, two second transmission wheels, a first rotating shaft and a second rotating shaft, the two first transmission wheels are respectively rotatably mounted on two third mounting plates on the same side, the two first transmission wheels are connected by a first transmission belt, the two second transmission wheels are respectively rotatably mounted on the two ends of the second mounting plate, the two second transmission wheels are connected by a second transmission belt, the first rotating shaft is rotatably mounted on one of the third mounting plates, the second rotating shaft is rotatably mounted on one end of the second mounting plate, the first rotating shaft and the second rotating shaft are coaxially arranged, one of the first transmission wheels is fixedly sleeved on the first rotating shaft, one of the second transmission wheels is fixedly sleeved on the second rotating shaft, and a driving port is opened on the first rotating shaft and the second rotating shaft, the cross-section of the two driving ports is a rectangular structure, and the two driving ports are also coaxially arranged.

[0016] As a preferred technical solution of the present invention, the front-end component also includes two first mounting seats, two sliding rods and two sleeves. The two first mounting seats are respectively fixed on the two first transmission belts, and the two first mounting seats are arranged opposite each other. Holes are provided on the two first mounting seats. The two sliding rods are respectively fixed on the two ends of the first mounting strip. The two sliding rods are respectively slid in the two holes. The two sleeves are respectively fixed on the two sliding rods. The two first mounting seats are located between the two sleeves. Each of the first mounting seats is connected to the corresponding sleeve by a reset spring. A connecting rod is fixed on the end of one of the sliding rods away from the first mounting strip.

[0017] As a preferred technical solution of the present invention, a plurality of ice-breaking teeth distributed in a linear array are fixed to the side surface of the first mounting bar.

[0018] As a preferred technical solution of the present invention, the rear end component also includes two second mounting seats, two openings, two sliders, two arc-shaped spring pieces and a cross plate. The two second mounting seats are respectively fixed on the two second transmission belts, and the two second mounting seats are arranged opposite each other. The two openings are respectively opened on the two second mounting seats, and the cross plate is arranged between the two second mounting seats. The two sliders are respectively fixed at the two ends of the cross plate, and the two sliders are respectively slid in the two openings. The two arc-shaped spring pieces are respectively fixed at the inner bottom position of the two openings, and the two arc-shaped spring pieces respectively resist the two sliders. Each slider is fixed with two limiting rings, and the two limiting rings are respectively located on both sides of the second mounting seat. A wiper strip is provided on the second mounting strip, and a pressure rod is fixed on one of the sliders.

[0019] As a preferred technical solution of the present invention, the control unit includes two first support rods, a fixed plate, a plurality of protruding teeth and a guide plate. The two first support rods are respectively fixed at the two ends of the second mounting plate. The fixed plate is fixed on the two first support rods. The plurality of protruding teeth are fixed on the side of the fixed plate, and the plurality of protruding teeth are distributed in a linear array. Each of the protruding teeth is provided with an inclined surface. The guide plate is fixed on the side of the fixed plate, and the guide plate is located below the plurality of protruding teeth. Two inclined surfaces with opposite inclination directions are provided at both ends of the guide plate.

[0020] As a preferred technical solution of the present invention, the driving unit includes a driving sleeve, a driving rod, a driving block and a push plate. The driving sleeve is fixed on the output shaft of the dual-axis motor, and the driving rod is slidably assembled in the driving sleeve. Two opposing limit openings are provided on the driving sleeve, and two limit blocks are fixed on the driving rod. The two limit blocks slide in the two limit openings respectively. One end of the driving rod extends to the outside of the driving sleeve and is fixedly connected to the driving block. The cross-section of the driving block is a rectangular structure, and the driving block is adapted to the driving opening. The push plate is rotatably mounted on the end of the driving rod located outside the driving sleeve.

[0021] As a preferred technical solution of the present invention, two air jets are provided on the second mounting bar, and the two air jets are respectively located on both sides of the second mounting bar, each of the air jets is connected to the second mounting bar through two second support rods, and each of the air jets is provided with a number of air jet holes arranged toward the wiper strip, and an air supply structure is provided on one of the second mounting seats for supplying air to the two air jets, and two third support rods are fixed to the side of one of the second mounting plates, and a rack is commonly fixed at one end of the two third support rods away from the second mounting plate, and the air supply structure includes a gear, and when the air supply structure passes through the rack, the gear and the rack engage with each other and drive the air supply structure to perform air supply action.

[0022] As a preferred technical solution of the present invention, the air supply structure includes an air suction box, an air inlet, a shaft, an air suction piece and a gear. The air suction box is fixed on the second mounting seat, the air inlet is opened on the side of the air suction box, the shaft is rotatably installed on the air suction box, and one end of the shaft extends to the outside of the air suction box, the air suction piece is fixedly sleeved on the shaft, the air suction piece is arranged inside the air suction box, and the end of the shaft located outside the air suction box is fixedly connected to the gear, the air suction piece is composed of a cylinder and a plurality of axial flow blades, the cylinder is fixedly sleeved on the shaft, each of the axial flow blades is fixed on the outer surface of the cylinder, and the plurality of axial flow blades are distributed in a circumferential array, and two air guide pipes are connected to the air suction box, and the ends of the two air guide pipes away from the air suction box are respectively connected to two injection pipes.

[0023] As a preferred technical solution of the present invention, two damping structures are provided on the side of the photovoltaic panel body, and the two damping structures are respectively arranged opposite to the two push plates. The damping structure includes an outer frame, a damping plate and a connecting spring. The outer frame is fixed on the side of the photovoltaic panel body, and the damping plate is slidably arranged on the outer frame. The damping plate and the outer frame are connected by a connecting spring. The damping plate is arranged opposite to the push plate, and the damping plate is provided with an arc surface adapted to the push plate. The damping plate presses the push plate under the action of the connecting spring.

[0024] The present invention has the following beneficial effects:

[0025] 1. The first mounting base is driven to move by two first transmission belts, and then the first mounting bar and snow removal cloth are driven to move by the sliding rod, thereby effectively clearing the snow on the surface of the photovoltaic panel body. When the snow is light, the first mounting bar directly pushes the snow off; when the snow is heavy, the first mounting bar is inserted between the snow and the photovoltaic panel body, and the snow removal cloth enters and shovels the snow, which falls off as the snow removal cloth moves. The snow removal cloth made of nylon material or with anti-slip texture increases the friction between the snow and the snow, making the snow easier to clear. This design can effectively cope with snow of different thicknesses and improve the cleaning efficiency and effect.

[0026] 2. A number of ice-breaking teeth are arranged on the first mounting bar, and the connecting rod on the slide bar cooperates with the inclined surface of the protruding teeth to make the first mounting bar vibrate when it moves over the photovoltaic panel body. This design causes the ice-breaking teeth to vibrate accordingly. When the snow on the photovoltaic panel body solidifies into ice, the vibrating ice-breaking teeth can continuously collide with the ice layer to achieve an ice-breaking effect. Even if the snow on the surface of the photovoltaic panel body solidifies into ice, the snow removal unit can still effectively clear it, thereby improving the snow removal efficiency and applicability.

[0027] 3. The present invention incorporates a wiper strip to address residual snow on the photovoltaic panel body, improving the cleaning efficiency of the snow removal unit. As the first mounting strip moves, the second mounting strip and its wiper strip press against the photovoltaic panel body surface, effectively scraping away residual moisture, broken ice, and accumulated snow. The coordinated design of the slider and curved spring ensures that the second mounting strip remains stable during movement and automatically resets when the pressure rod separates from the guide plate, avoiding unnecessary wear of the wiper strip beneath the photovoltaic panel body and ensuring cleaning efficiency and the service life of the wiper strip.

[0028] 4. The dry wiper strip function designed in this invention effectively prevents moisture from remaining on the surface of the wiper strip, preventing ice from scratching the photovoltaic panel body in winter. By adjusting the drive block to rotate the second transmission belt while the first transmission belt is stationary, the second mounting strip can be moved independently. When the second mounting strip moves below the photovoltaic panel body, the gear and rack of the vacuum box engage, driving the suction element to rotate and extract air. The air enters the air injection pipe through the air guide pipe and is finally ejected from the air injection holes. These air injection holes are directed towards the wiper strip, blowing off the attached moisture and achieving a dehydration effect, ensuring the cleanliness of the wiper strip and the safety of the photovoltaic panel body.

[0029] 5. The special design of the invention enables the second mounting bar to move independently, without relying on the traction of the first mounting bar and the snow removal cloth, which facilitates the drying of the wiper strip. If the second mounting bar can only move with the first mounting bar, the first mounting bar will block the photovoltaic panel body again after the air is sprayed. To avoid blocking, the dual-axis motor must be controlled to operate continuously to move the two mounting bars back under the photovoltaic panel body. In other words, it must move around the photovoltaic panel body twice to complete the self-cleaning operation. This operation is complicated and energy-intensive. The second mounting bar that can move independently simplifies the operation steps and reduces energy consumption.

[0030] 6. The damping structure on the photovoltaic panel body uses a connecting spring to keep the damping plate pressed against the push plate at all times, ensuring the stability of the push plate, preventing the driving rod and the driving block from moving unintentionally, and ensuring the stable operation of the device. The push plate is rotatably mounted on the driving rod through a bearing, which can both drive the driving rod to move and rotate relative to the driving rod. When the damping plate presses the push plate, the push plate cannot rotate, and the driving rod can rotate smoothly. This design avoids the push plate from rotating with the driving rod and causing significant wear and tear with the damping plate, thereby improving the durability and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of a self-cleaning solar photovoltaic panel protection device proposed by the present invention;

[0032] Figure 2 This is a structural schematic diagram of a self-cleaning solar photovoltaic panel protection device proposed by the present invention from another perspective;

[0033] Figure 3 This is a structural diagram of the snow removal cloth being located above the photovoltaic panel body;

[0034] Figure 4 for Figure 1 A magnified view of the structure at point A;

[0035] Figure 5 for Figure 3 A magnified view of the structure at point B;

[0036] Figure 6 is a schematic cross-sectional structural diagram of the first transmission wheel and the second transmission wheel;

[0037] Figure 7 for Figure 6 A magnified view of the structure at C;

[0038] Figure 8 for Figure 6 A magnified view of the structure at D;

[0039] Figure 9 This is a schematic diagram of the structure of the backend components;

[0040] Figure 10Schematic diagram of the cross-sectional structure of the air extraction box;

[0041] Figure 11 It is a structural diagram of the control unit;

[0042] Figure 12 Schematic diagram of the damping structure

[0043] Figure: 1. Photovoltaic panel body; 101. First mounting plate; 102. Second mounting plate; 103. Third mounting plate; 2. Dual-axis motor; 31. First transmission wheel; 32. First transmission belt; 33. Second transmission wheel; 34. Second transmission belt; 35. First rotating shaft; 36. Second rotating shaft; 41. First mounting seat; 42. Sliding rod; 43. Cover plate; 44. Return spring; 45. First mounting bar; 46. Ice-breaking tooth; 47. Connecting rod; 51. Second mounting seat; 52. Opening; 53. Sliding block; 54. Arc spring Plate; 55, limiting ring; 56, horizontal plate; 57, second mounting strip; 58, wiper strip; 6, snow removal cloth; 71, first support rod; 72, fixing plate; 73, convex tooth; 74, guide plate; 81, drive sleeve; 82, drive rod; 83, limiting opening; 84, limiting block; 85, drive block; 86, push plate; 91, second support rod; 92, jet pipe; 93, jet hole; 94, vacuum box; 95, air inlet; 96, shaft; 97, suction part; 98, gear; 99, third support rod; 910, rack. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] Reference Figure 1-12 A self-cleaning solar photovoltaic panel protection device includes a photovoltaic panel body 1, a dual-axis motor 2, a transmission unit, a snow removal unit, a control unit, and a drive unit. First mounting plates 101 are fixed on both sides of the photovoltaic panel body 1. Second mounting plates 102 are fixed to the ends of the two first mounting plates 101 away from the photovoltaic panel body 1. Third mounting plates 103 are fixed to the four corners of the photovoltaic panel body 1. The dual-axis motor 2 is installed on the side of the photovoltaic panel body 1.

[0046] The transmission unit is composed of two transmission components, which are respectively arranged on both sides of the photovoltaic panel body 1. The transmission components include two first transmission wheels 31, two second transmission wheels 33, a first rotating shaft 35 and a second rotating shaft 36. The two first transmission wheels 31 are respectively rotatably mounted on the two third mounting plates 103 on the same side. The two first transmission wheels 31 are connected by a first transmission belt 32. The two second transmission wheels 33 are respectively rotatably mounted at both ends of the second mounting plate 102. The two second transmission wheels 33 are connected by a second transmission belt 34. The first rotating shaft 35 is rotatably mounted on one of the third mounting plates 103, and the second rotating shaft 36 is rotatably mounted on the second mounting plate 102. At one end, the first rotating shaft 35 and the second rotating shaft 36 are coaxially arranged, one of the first transmission wheels 31 is fixedly sleeved on the first rotating shaft 35, and one of the second transmission wheels 33 is fixedly sleeved on the second rotating shaft 36. A driving opening is opened on the first rotating shaft 35 and the second rotating shaft 36. The cross-sections of the two driving openings are both rectangular structures, and the two driving openings are also coaxially arranged. When the output shaft of the dual-axis motor 2 rotates, when the dual-axis motor 2 is running, the two first rotating shafts 35 in the two transmission assemblies will respectively drive the corresponding first transmission wheels 31 to rotate, and the rotating first transmission wheels 31 cooperate with the other first transmission wheel 31 in the transmission assembly to drive the first transmission belt 32 to rotate;

[0047] The snow removal unit consists of a front-end component, a rear-end component and a snow removal cloth 6. The front-end component includes a first mounting bar 45, and the rear-end component includes a second mounting bar 57. The snow removal cloth 6 is fixed between the first mounting bar 45 and the second mounting bar 57. When the transmission unit is running, the snow removal cloth 6 moves around the photovoltaic panel body 1. The front-end component also includes two first mounting seats 41, two slide bars 42 and two sleeves 43. The two first mounting seats 41 are respectively fixed on the two first transmission belts 32, and the two first mounting seats 41 are arranged opposite to each other. Holes are opened on the two first mounting seats 41. The two slide bars 42 are respectively fixed at both ends of the first mounting bar 45. The two slide bars 43 are respectively fixed at both ends of the first mounting bar 45. 2 are respectively slidably arranged in the two hole positions, the two sleeve plates 43 are respectively fixedly sleeved on the two slide rods 42, the two first mounting seats 41 are located between the two sleeve plates 43, and each first mounting seat 41 is connected to the corresponding sleeve plate 43 by a reset spring 44. A connecting rod 47 is fixed to the end of one slide rod 42 away from the first mounting bar 45. The rear end assembly also includes two second mounting seats 51, two openings 52, two sliders 53, two arc-shaped spring pieces 54 and a cross plate 56. The two second mounting seats 51 are respectively fixed on the two second transmission belts 34, and the two second mounting seats 51 are arranged opposite to each other. The two openings 52 are respectively opened at the two first mounting seats 51 and the second transmission belts 34. On the second mounting seat 51, a horizontal plate 56 is arranged between the two second mounting seats 51, two sliders 53 are respectively fixed at both ends of the horizontal plate 56, and the two sliders 53 are respectively slidably arranged in the two openings 52, and two arc-shaped spring pieces 54 are respectively fixed at the inner bottom position of the two openings 52, and the two arc-shaped spring pieces 54 respectively resist the two sliders 53, and each slider 53 is fixed with two limiting rings 55, and the two limiting rings 55 are respectively located on both sides of the second mounting seat 51, a wiper strip 58 is provided on the second mounting bar 57, and a pressure rod is fixed on one of the sliders 53. When there is less snow on the surface of the photovoltaic panel body 1, the first mounting bar 45 can be directly Push the accumulated snow off the photovoltaic panel body 1. When there is a lot of snow accumulated on the surface of the photovoltaic panel body 1, the first mounting bar 45 will be inserted between the accumulated snow and the photovoltaic panel body 1 and move between the accumulated snow and the photovoltaic panel body 1. At this time, the snow removal cloth 6 comes into play. When the first mounting bar 45 moves between the accumulated snow and the photovoltaic panel body 1, the snow removal cloth 6 also enters therewith, so that the accumulated snow will be shoveled onto the snow removal cloth 6 and separated from the photovoltaic panel body 1. Further, the accumulated snow will move with the moving snow removal cloth 6. When the snow removal cloth 6 bends and rotates under the action of the transmission unit, the snow on the snow removal cloth 6 will fall off, thereby achieving effective cleaning of thick snow.

[0048] A plurality of ice-breaking teeth 46 distributed in a linear array are fixed to the side of the first mounting bar 45, and the control unit is arranged on one of the second mounting plates 102. The control unit includes two first support rods 71, a fixing plate 72, a plurality of convex teeth 73 and a guide plate 74. The two first support rods 71 ​​are respectively fixed at both ends of the second mounting plate 102, and the fixing plate 72 is fixed on the two first support rods 71. The plurality of convex teeth 73 are fixed on the side of the fixing plate 72, and the plurality of convex teeth 73 are distributed in a linear array, and each convex tooth 73 is provided with an inclined surface. The guide plate 74 is fixed to the side of the fixing plate 72, and the guide plate 74 is located below the plurality of convex teeth 73. Two inclined surfaces with opposite inclination directions are provided at both ends of the guide plate 74. When the connecting rod 47 and the convex teeth are connected, the guide plate 74 is fixed to the side of the fixing plate 72, and the guide plate 74 is located below the plurality of convex teeth 73. When the inclined surfaces of the teeth 73 come into contact with each other, the connecting rod 47 can move along the inclined surfaces of the protruding teeth 73, and drive the corresponding sliding rod 42 to move, so that the first mounting bar 45 moves accordingly. When the connecting rod 47 moves between two adjacent protruding teeth 73, the protruding teeth 73 no longer contact the connecting rod 47. At this time, the first mounting bar 45 is reset under the action of the two return springs 44. Based on the above process, under the action of the protruding teeth 73, the first mounting bar 45 will vibrate synchronously during the movement above the photovoltaic panel body 1. When the first mounting bar 45 vibrates, the several ice-breaking teeth 46 thereon vibrate accordingly. When the snow on the photovoltaic panel body 1 solidifies into ice, the several vibrating ice-breaking teeth 46 can continuously collide with the ice layer to achieve the effect of breaking ice.

[0049] The drive unit is composed of two drive units, which are respectively connected to the two output shafts of the dual-axis motor 2. The drive unit includes a drive sleeve 81, a drive rod 82, a drive block 85 and a push plate 86. The drive sleeve 81 is fixed on the output shaft of the dual-axis motor 2, and the drive rod 82 is slidably assembled in the drive sleeve 81. The drive sleeve 81 is provided with two opposite limit openings 83, and two limit blocks 84 are fixed on the drive rod 82. The two limit blocks 84 slide in the two limit openings 83 respectively. One end of the drive rod 82 extends to the outside of the drive sleeve 81 and is fixedly connected to the drive block 85. The cross-section of the drive block 85 is a rectangular structure, and the drive block 85 is adapted to the drive opening. The push plate 86 is rotatably mounted on the end of the drive rod 82 located outside the drive sleeve 81. Two damping structures are provided on the side of the photovoltaic panel body 1. The two damping structures are respectively arranged opposite to the two push plates 86. The damping structure includes an outer frame, a damping plate and a connecting spring. The outer frame The cam 86 is held in place by the spring 86 and the spring 86 is held in place by the spring 86. The cam 86 is held in place by the spring 86 and the spring 86 is held in place by the spring 86. The cam 86 is held in place by the spring 86 and the spring 86 is held in place by the spring 86.

[0050] Two air jets 92 are provided on the second mounting bar 57. The two air jets 92 are respectively located on both sides of the second mounting bar 57. Each air jet 92 is connected to the second mounting bar 57 through two second support rods 91. Each air jet 92 is provided with a plurality of air jet holes 93 arranged toward the wiper strip 58. One of the second mounting seats 51 is provided with an air supply structure for supplying air to the two air jets 92. Two third support rods 99 are fixed on the side of one of the second mounting plates 102. A rack 910 is fixed to the end of the two third support rods 99 away from the second mounting plate 102. The air supply structure includes a gear 98. When the supply When the air structure passes through the rack 910, the gear 98 and the rack 910 engage with each other and drive the air supply structure to supply air. The air supply structure includes an air pumping box 94, an air inlet 95, a shaft 96, an air suction member 97 and a gear 98. The air pumping box 94 is fixed on the second mounting seat 51, and the air inlet 95 is opened on the side of the air pumping box 94. The shaft 96 is rotatably mounted on the air pumping box 94, and one end of the shaft 96 extends to the outside of the air pumping box 94. The air suction member 97 is fixedly sleeved on the shaft 96. The air suction member 97 is arranged inside the air pumping box 94. The end of the shaft 96 located outside the air pumping box 94 is fixedly connected to the gear 98. The air suction member 97 is connected to the cylinder 98. The cylinder is fixedly mounted on the shaft 96, and each axial flow blade is fixed to the outer surface of the cylinder. The axial flow blades are distributed in a circumferential array. Two air ducts are connected to the air pump box 94. The ends of the two air ducts away from the air pump box 94 are respectively connected to the two air injection pipes 92. When the second mounting bar 57 moves below the photovoltaic panel body 1, the gear 98 on the shaft 96 will engage with the rack 910 and rotate under the action of the rack 910. When the gear 98 rotates, it can drive the shaft 96 to rotate, so that the shaft 96 drives the suction member 97 to rotate. A number of axial flow blades are provided in the suction member 97. During rotation, it is possible to perform a vacuum action, and draw the air in the environment into the interior of the vacuum box 94 through the air inlet 95. Furthermore, the gas will enter the two jet pipes 92 respectively through the two air ducts, and finally be ejected through the plurality of jet holes 93. In summary, when the second mounting bar 57 moves to the bottom of the photovoltaic panel body 1, the plurality of jet holes 93 can perform a jet action, and the plurality of jet holes 93 are all arranged toward the wiper strip 58. Therefore, the gas ejected from the plurality of jet holes 93 can blow off the moisture attached to the surface of the wiper strip 58, thereby dehydrating the wiper strip 58 and preventing moisture from remaining on the wiper strip 58 and condensing into ice.

[0051] The specific working principle of the present invention is as follows:

[0052] When the self-cleaning solar photovoltaic panel body 1 protection device proposed by the present invention is in use, when the photovoltaic panel body 1 is operating normally, the first mounting bar 45, the second mounting bar 57, and the snow removal cloth 6 are all located below the photovoltaic panel body 1. At this time, the light-receiving surface of the photovoltaic panel body 1 is not blocked by the snow removal cloth 6, and normal light-receiving and power generation work is performed. In addition, the two driving blocks 85 are respectively located in the driving openings on the two first rotating shafts 35, and the two driving blocks 85 do not contact the two second rotating shafts 36.

[0053] When it is necessary to remove snow from the photovoltaic panel body 1, the staff first controls the dual-axis motor 2 to operate. When the dual-axis motor 2 is operating, the two output shafts thereon drive the two drive units to operate, so that the two drive units respectively drive the two transmission components to operate. Specifically, when the output shaft of the dual-axis motor 2 rotates, the drive sleeve 81 rotates accordingly. When the drive sleeve 81 rotates, it can drive the drive rod 82 to rotate through the two limit openings 83 and the two limit blocks 84, and the drive block 85 connected to the drive rod 82 will also rotate. Since the cross-sections of the drive block 85 and the drive opening are both rectangular structures, and the shape of the drive block 85 is adapted to the drive opening, the drive block 85 can rotate when it rotates. It is enough to drive the first rotating shaft 35 to rotate. It should be noted here that since the driving block 85 does not contact the second rotating shaft 36, that is, the driving block 85 does not extend into the driving opening on the second rotating shaft 36, the second rotating shaft 36 will not rotate with the driving block 85. Based on the above process, when the dual-axis motor 2 is running, the two first rotating shafts 35 in the two transmission assemblies will respectively drive the corresponding first transmission wheels 31 to rotate, and the rotating first transmission wheels 31 cooperate with the other first transmission wheels 31 in the transmission assembly to drive the first transmission belt 32 to rotate. The final effect achieved is: when the dual-axis motor 2 is running, the two first transmission belts 32 are driven to rotate synchronously;

[0054] When the two first transmission belts 32 rotate, the first mounting seat 41 arranged on the first transmission belt 32 moves accordingly. When the two first mounting seats 41 move, they can drive the first mounting bar 45 to move through the two sliding bars 42. When the first mounting bar 45 moves, it can pull the snow removal cloth 6 to move, and at the same time, the snow removal cloth 6 pulls the second mounting bar 57 to move. When the first mounting bar 45 moves to the top of the photovoltaic panel body 1, the first mounting bar 45 just contacts the surface of the photovoltaic panel body 1. Therefore, the first mounting bar 45 can push down the snow settled on the surface of the photovoltaic panel body 1 during the movement on the photovoltaic panel body 1. Specifically, when there is less snow on the surface of the photovoltaic panel body 1, the first mounting bar 45 can directly push the snow off the photovoltaic panel body 1. When the snow accumulated on the surface of the photovoltaic panel body 1 is When there is a lot of snow, the first mounting bar 45 will be inserted between the snow and the photovoltaic panel body 1 and move between the snow and the photovoltaic panel body 1. At this time, the snow removal cloth 6 plays a role. When the first mounting bar 45 moves between the snow and the photovoltaic panel body 1, the snow removal cloth 6 also enters therewith, so that the snow will be shoveled onto the snow removal cloth 6 and separated from the photovoltaic panel body 1. Further, the snow will move with the moving snow removal cloth 6. When the snow removal cloth 6 bends and rotates under the action of the transmission unit, the snow on the snow removal cloth 6 will fall off, thereby achieving effective cleaning of thick snow. It is worth noting that the snow removal cloth 6 can be made of nylon material, or anti-slip texture can be provided on the surface of the snow removal cloth 6 to increase the friction between the snow removal cloth 6 and the snow, so that the snow can move with the snow removal cloth 6.

[0055] Furthermore, a plurality of ice-breaking teeth 46 are provided on the first mounting bar 45. When the first mounting bar 45 moves to the top of the photovoltaic panel body 1, the connecting rod 47 provided on one of the slide bars 42 will move to a position facing the plurality of convex teeth 73 and first contact the convex teeth 73 at the end position. Since each convex tooth 73 is provided with an inclined surface, when the connecting rod 47 contacts the inclined surface of the convex tooth 73, the connecting rod 47 can move along the inclined surface of the convex tooth 73 and drive the corresponding slide bar 42 to move, so that the first mounting bar 45 moves accordingly. When the connecting rod 47 moves between two adjacent convex teeth 73, the convex teeth 73 are in contact with each other. 73 is no longer in contact with the connecting rod 47. At this time, the first mounting bar 45 is reset under the action of the two reset springs 44. Based on the above process, under the action of the plurality of convex teeth 73, the first mounting bar 45 will synchronously vibrate when moving above the photovoltaic panel body 1. When the first mounting bar 45 vibrates, the plurality of ice-breaking teeth 46 thereon vibrate accordingly. When the snow on the photovoltaic panel body 1 solidifies into ice, the plurality of vibrating ice-breaking teeth 46 can continuously collide with the ice layer to achieve the effect of breaking the ice. Through this special design, even if the snow on the surface of the photovoltaic panel body 1 solidifies into ice, the snow removal unit can still effectively clean it.

[0056] When the snow is pushed off the photovoltaic panel body 1, a small amount of water, snow and ice may still remain on the surface of the photovoltaic panel body 1. In order to improve the cleaning effect of the snow removal unit on the photovoltaic panel body 1, a wiper strip 58 is designed in the present invention to deal with the situation where snow remains on the photovoltaic panel body 1. Specifically, as the first mounting bar 45 moves, the second mounting bar 57 will also move to the top of the photovoltaic panel body 1. When the second mounting bar 57 moves to the top of the photovoltaic panel body 1, the pressure rod set on one of the sliders 53 will contact the inclined surface at the end position of the guide plate 74 and slide downward along the inclined surface. When the pressure rod moves to the bottom of the guide plate 74, the pressure rod will continue to move along the bottom surface of the guide plate 74 to keep the second mounting bar 57 in a downward state. When the second mounting bar 57 is pressed down, the wiper strip 58 on the second mounting bar 57 will press the surface of the photovoltaic panel body 1 tightly. In this case, the wiper strip 58 follows the movement of the second mounting bar 57. During the process, the wiper strip 58 can scrape off the water, broken ice and snow remaining on the photovoltaic panel body 1, thereby ensuring the cleaning effect of the surface of the photovoltaic panel body 1. It is worth noting that when the second mounting bar 57 moves, the sliders 53 at both ends will slide in the two openings 52. When the second mounting bar 57 is pressed down, the two sliders 53 will squeeze the two arc-shaped spring pieces 54. The two arc-shaped spring pieces 54 are used to automatically reset the second mounting bar 57. When the pressure rod is separated from the guide plate 74, the two sliders 53 will be reset under the action of the two arc-shaped spring pieces 54. This design ensures that the wiper strip 58 no longer presses the photovoltaic panel body 1 when it moves to the bottom of the photovoltaic panel body 1, which can avoid unnecessary wear of the wiper strip 58, thereby extending the service life of the wiper strip 58. In addition, two limiting rings 55 are fixed to each slider 53, and the two limiting rings 55 are respectively located on both sides of the second mounting seat 51. The two limiting rings 55 are provided to prevent the slider 53 from falling off from the opening 52.

[0057] The present invention also has a function of drying the wiper strip 58, which can prevent moisture from remaining on the surface of the wiper strip 58, and can prevent the moisture remaining on the surface of the wiper strip 58 from condensing into ice in winter, thereby preventing the ice layer on the surface of the wiper strip 58 from scratching the photovoltaic panel body 1 during the cleaning process. Specifically, when the first mounting bar 45 and the second mounting bar 57 are both moved to the bottom of the photovoltaic panel body 1, the staff temporarily turns off the dual-axis motor 2, and then pushes the two push plates 86 in turn. When the push plates 86 move, they can drive the drive rod 82 to move, and the drive block 85 will also move accordingly. At the same time, the staff can fine-tune the angle of the second rotating shaft 36 by rotating the second transmission wheel 33, so that the drive block 85 is inserted into the second rotating shaft 36 When the driving block 85 is inserted into the driving hole on the second rotating shaft 36, the driving block 85 will be completely disengaged from the driving hole on the first rotating shaft 35. In this case, when the driving block 85 rotates, it will drive the second rotating shaft 36 to rotate, and the first rotating shaft 35 will not rotate. After completing the adjustment of the two driving blocks 85, the staff will start the dual-axis motor 2 again. Since the two driving blocks 85 have been inserted into the two driving holes on the two second rotating shafts 36 respectively, the two second rotating shafts 36 will rotate synchronously, which makes the two second transmission belts 34 operate synchronously, while the two first transmission belts 32 remain stationary. When the two second transmissions are operating, the two second mounting seats 51 will move synchronously and drive the second mounting bar 57 to move.

[0058] When the second mounting bar 57 moves below the photovoltaic panel body 1, the gear 98 on the shaft 96 will mesh with the rack 910 and rotate under the action of the rack 910. When the gear 98 rotates, it can drive the shaft 96 to rotate, so that the shaft 96 drives the air suction member 97 to rotate. The air suction member 97 is provided with a plurality of axial flow blades. When the plurality of axial flow blades rotate, they can perform an exhaust action and draw air from the environment into the interior of the exhaust box 94 through the air inlet 95. Further, the gas will enter the two jet pipes 92 respectively through the two air guide pipes and finally be ejected through the plurality of jet holes 93. In summary, when the second mounting bar 57 moves to the bottom of the photovoltaic panel body 1, the plurality of jet holes 93 can perform an ejection action. The plurality of jet holes 93 are all arranged toward the wiper strip 58. Therefore, the gas ejected from the plurality of jet holes 93 can blow off the moisture attached to the surface of the wiper strip 58, thereby removing water from the wiper strip 58 and preventing moisture from remaining on the wiper strip 58 and condensing into ice.

[0059] It should be noted that the special design of the present invention enables the second mounting bar 57 to move independently without relying on the traction of the first mounting bar 45 and the snow removal cloth 6, so as to facilitate the drying of the wiper strip 58. If the second mounting bar 57 can only move under the traction of the first mounting bar 45 and the snow removal cloth 6, then after the jet action is completed, the first mounting bar 45 will move again above the photovoltaic panel body 1 and block the photovoltaic panel body 1. Furthermore, in order to avoid the occurrence of the blocking phenomenon, the staff needs to control the dual-axis motor 2 to operate continuously so that the first mounting bar 45 and the second mounting bar 57 are moved again to the bottom of the photovoltaic panel body 1, that is, the first mounting bar 45 and the second mounting bar 57 need to move twice around the photovoltaic panel body 1 before the wiper strip 58 can perform the self-cleaning action. However, by providing the second mounting bar 57 that can move independently, there is no need for the first mounting bar 45 and the second mounting bar 57 to move twice around the photovoltaic panel body 1, which not only simplifies the operation steps but also reduces energy consumption.

[0060] The photovoltaic panel body 1 is also provided with a damping structure for stabilizing the position of the drive shaft and the drive block 85. For the damping structure, the damping plate always presses the push plate 86 under the action of the connecting spring, which can ensure the stability of the push plate 86 and prevent the drive rod 82 and the drive block 85 from moving under non-human conditions, thereby ensuring the stable operation of the device. It is worth mentioning that the push plate 86 can be rotatably installed on the drive rod 82 through a bearing, which enables the push plate 86 to drive the drive rod 82 to move while also being able to rotate relative to the drive rod 82. When the damping plate presses the push plate 86, the push plate 86 cannot rotate, and the drive rod 82 can rotate smoothly. This design can avoid the phenomenon that the push plate 86 follows the drive rod 82 to rotate and suffers large wear and tear with the damping plate.

[0061] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A self-cleaning solar photovoltaic panel protection device, characterized in that: It includes a photovoltaic panel body (1), a dual-axis motor (2), a transmission unit, a snow removal unit, a control unit and a drive unit; Wherein, first mounting plates (101) are fixed to both sides of the photovoltaic panel body (1), second mounting plates (102) are fixed to the ends of the two first mounting plates (101) away from the photovoltaic panel body (1), and third mounting plates (103) are fixed to the four corners of the photovoltaic panel body (1); Wherein, the dual-axis motor (2) is installed on the side of the photovoltaic panel body (1); Wherein, the transmission unit is composed of two transmission assemblies, and the two transmission assemblies are respectively arranged on both sides of the photovoltaic panel body (1); The snow removal unit is composed of a front-end component, a rear-end component and a snow removal cloth (6), the front-end component includes a first mounting bar (45), the rear-end component includes a second mounting bar (57), the snow removal cloth (6) is fixed between the first mounting bar (45) and the second mounting bar (57), and when the transmission unit is in operation, the snow removal cloth (6) moves around the photovoltaic panel body (1); Wherein, the control unit is arranged on one of the second mounting plates (102); The driving unit is composed of two driving units, and the two driving units are respectively connected to the two output shafts of the dual-axis motor (2); The front end assembly also includes two first mounting seats (41), two slide bars (42) and two sleeve plates (43), the two first mounting seats (41) are respectively fixed on the two first transmission belts (32), and the two first mounting seats (41) are arranged opposite each other, and the two first mounting seats (41) are both provided with holes, the two slide bars (42) are respectively fixed on the two ends of the first mounting strip (45), the two slide bars (42) are respectively slidably arranged in the two holes, the two sleeve plates (43) are respectively fixedly sleeved on the two slide bars (42), the two first mounting seats (41) are located between the two sleeve plates (43), each of the first mounting seats (41) and the corresponding sleeve plate (43) are connected by a reset spring (44), and a connecting rod (47) is fixed to one end of one of the slide bars (42) away from the first mounting strip (45); A plurality of ice-breaking teeth (46) distributed in a linear array are fixed to the side surface of the first mounting bar (45); The rear end assembly further comprises two second mounting seats (51), two openings (52), two sliders (53), two arc-shaped spring pieces (54) and a transverse plate (56). The two second mounting seats (51) are respectively fixed on the two second transmission belts (34), and the two second mounting seats (51) are arranged opposite each other. The two openings (52) are respectively opened on the two second mounting seats (51), the transverse plate (56) is arranged between the two second mounting seats (51), and the two sliders (53) are respectively fixed on both ends of the transverse plate (56). , and the two sliders (53) are respectively slidably arranged in the two openings (52), the two arc-shaped spring pieces (54) are respectively fixed at the inner bottom positions of the two openings (52), the two arc-shaped spring pieces (54) respectively abut the two sliders (53), each of the sliders (53) is fixedly provided with two limiting rings (55), and the two limiting rings (55) are respectively located on both sides of the second mounting seat (51), the second mounting strip (57) is provided with a wiper strip (58), and a pressure rod is fixed on one of the sliders (53).

2. A self-cleaning solar photovoltaic panel protection device according to claim 1, characterized in that: The transmission assembly includes two first transmission wheels (31), two second transmission wheels (33), a first rotating shaft (35) and a second rotating shaft (36). The two first transmission wheels (31) are respectively rotatably mounted on two third mounting plates (103) on the same side. The two first transmission wheels (31) are connected to each other via a first transmission belt (32). The two second transmission wheels (33) are respectively rotatably mounted on two ends of the second mounting plate (102). The two second transmission wheels (33) are connected to each other via a second transmission belt (34). The first rotating shaft (35) The first rotating shaft (35) and the second rotating shaft (36) are rotatably mounted on one of the third mounting plates (103). The second rotating shaft (36) is rotatably mounted on one end of the second mounting plate (102). The first rotating shaft (35) and the second rotating shaft (36) are coaxially arranged. One of the first transmission wheels (31) is fixedly sleeved on the first rotating shaft (35). One of the second transmission wheels (33) is fixedly sleeved on the second rotating shaft (36). The first rotating shaft (35) and the second rotating shaft (36) are both provided with drive openings. The cross-sections of the two drive openings are both rectangular structures, and the two drive openings are also coaxially arranged.

3. A self-cleaning solar photovoltaic panel protection device according to claim 1, characterized in that: The control unit comprises two first support rods (71), a fixing plate (72), a plurality of convex teeth (73) and a guide plate (74), wherein the two first support rods (71) are respectively fixed at two ends of the second mounting plate (102), the fixing plate (72) is fixed on the two first support rods (71), the plurality of convex teeth (73) are all fixed on the side of the fixing plate (72), and the plurality of convex teeth (73) are distributed in a linear array, and each of the convex teeth (73) is provided with an inclined surface, the guide plate (74) is fixed on the side of the fixing plate (72), and the guide plate (74) is located below the plurality of convex teeth (73), and two inclined surfaces with opposite inclination directions are provided at both ends of the guide plate (74).

4. A self-cleaning solar photovoltaic panel protection device according to claim 2, characterized in that: The driving unit comprises a driving sleeve (81), a driving rod (82), a driving block (85) and a push plate (86), wherein the driving sleeve (81) is fixed on the output shaft of the dual-axis motor (2), the driving rod (82) is slidably assembled in the driving sleeve (81), the driving sleeve (81) is provided with two opposite limiting openings (83), two limiting blocks (84) are fixed on the driving rod (82), and the two limiting blocks (84) slide in the two limiting openings (83) respectively, one end of the driving rod (82) extends to the outside of the driving sleeve (81) and is fixedly connected to the driving block (85), the cross section of the driving block (85) is a rectangular structure, and the driving block (85) is adapted to the driving opening, and the push plate (86) is rotatably mounted on one end of the driving rod (82) located outside the driving sleeve (81).

5. The self-cleaning solar photovoltaic panel protection device according to claim 1, characterized in that: Two jet tubes (92) are provided on the second mounting bar (57), and the two jet tubes (92) are respectively located on both sides of the second mounting bar (57). Each jet tube (92) is connected to the second mounting bar (57) via two second support rods (91). Each jet tube (92) is provided with a plurality of jet holes (93) facing the wiper strip (58). An air supply structure is provided on one of the second mounting seats (51) for supplying air to the two jet tubes (92). Two third support rods (99) are fixed to the side of one of the second mounting plates (102). A rack (910) is fixed to one end of the two third support rods (99) away from the second mounting plate (102). The air supply structure includes a gear (98). When the air supply structure passes through the rack (910), the gear (98) and the rack (910) engage with each other and drive the air supply structure to perform an air supply action.

6. A self-cleaning solar photovoltaic panel protection device according to claim 5, characterized in that: The air supply structure includes an air pumping box (94), an air inlet (95), a shaft (96), an air suction member (97) and a gear (98), wherein the air pumping box (94) is fixed on the second mounting seat (51), the air inlet (95) is opened on the side of the air pumping box (94), the shaft (96) is rotatably mounted on the air pumping box (94), and one end of the shaft (96) extends to the outside of the air pumping box (94), the air suction member (97) is fixedly sleeved on the shaft (96), and the air suction member (97) is arranged on Inside the vacuum box (94), one end of the shaft (96) located outside the vacuum box (94) is fixedly connected to the gear (98), and the suction member (97) is composed of a cylinder and a plurality of axial flow blades. The cylinder is fixedly sleeved on the shaft (96), and each of the axial flow blades is fixed on the outer surface of the cylinder. The plurality of axial flow blades are distributed in a circumferential array. Two air guide tubes are connected to the vacuum box (94), and the ends of the two air guide tubes away from the vacuum box (94) are respectively connected to the two injection pipes (92).

7. The self-cleaning solar photovoltaic panel protection device according to claim 1, characterized in that: Two damping structures are provided on the side of the photovoltaic panel body (1), and the two damping structures are respectively provided opposite to the two push plates (86). The damping structure comprises an outer frame, a damping plate and a connecting spring. The outer frame is fixed to the side of the photovoltaic panel body (1), and the damping plate is slidably provided on the outer frame. The damping plate and the outer frame are connected via a connecting spring. The damping plate is provided opposite to the push plate (86), and an arc surface adapted to the push plate (86) is provided on the damping plate. The damping plate presses the push plate (86) under the action of the connecting spring.

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