Self-cleaning solar photovoltaic panel protection device

Abstract

The invention relates to the technical field of photovoltaic panel body protection, and discloses a self-cleaning solar photovoltaic panel protection device, which comprises a photovoltaic panel body, a double-shaft motor, a transmission unit, a snow removal unit, a control unit and a driving unit, the photovoltaic panel comprises a photovoltaic panel body, first mounting plates are fixed to the two sides of the photovoltaic panel body, second mounting plates are fixed to the ends, away from the photovoltaic panel body, of the two first mounting plates, and third mounting plates are fixed to the four corners of the photovoltaic panel body; wherein the double-shaft motor is mounted on the side surface of the photovoltaic panel body; wherein the transmission unit is composed of two transmission assemblies, and the two transmission assemblies are arranged on the two sides of the photovoltaic panel body respectively. The two first transmission belts drive the first mounting seat to move, and then the sliding rod drives the first mounting strip and the snow removing cloth to move, so that the accumulated snow on the surface of the photovoltaic panel body is effectively cleaned, the accumulated snow with different thicknesses can be effectively dealt with, and the cleaning efficiency and effect are improved.

Description

Technical Field

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

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

[0003] After retrieval, a Chinese patent with the publication number CN212486453U discloses a photovoltaic panel body with a snow removal device, including a photovoltaic panel body group and a snow removal device installed on the photovoltaic panel body group. The snow removal device includes an upper rotating shaft, a lower rotating shaft, a rotating shaft bracket, a synchronous pulley, a synchronous belt, a snow scraping strip, a snow scraping strip pulling-down mechanism, and a snow scraping strip rebounding mechanism. Among them, the upper and lower rotating shafts are respectively arranged at the top and bottom of the photovoltaic panel body group. Synchronous pulleys are respectively fixed at both ends of the upper and lower rotating shafts. Two synchronous pulleys on the same side of the photovoltaic panel body group are synchronously connected through a synchronous belt. Both ends of the snow scraping strip are respectively fixed to the two synchronous belts. The above solution uses the rotating shaft, synchronous pulley, synchronous belt, snow scraping strip, and snow scraping strip pulling-down mechanism to simultaneously remove snow from multiple photovoltaic panel bodies. The snow scraping strip rebounding mechanism enables the snow scraping strip to automatically return to the initial position at the top of the photovoltaic panel body group without manual operation by staff, greatly improving the snow removal efficiency and thus the photoelectric conversion efficiency. However, when the above solution is actually used, there are still the following deficiencies: The above solution uses a simple scraping action to scrape the snow layer covering the surface of the photovoltaic panel body. The scraping action is realized by the snow scraping strip, and the snow scraping strip is overall slender. When using the slender snow scraping strip to scrape 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 frozen, the snow scraping strip may not be able to generate enough friction to effectively scrape the snow layer, but simply pass through the gap between the snow layer and the photovoltaic panel body, thus failing to achieve the expected effect of thoroughly cleaning the surface of the photovoltaic panel body.

[0004] Therefore, it is necessary to design a self-cleaning solar photovoltaic panel protection device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art and propose a self-cleaning solar photovoltaic panel protection device.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: 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; 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; Wherein, the dual-axis motor is installed 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 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. Wherein, the control unit is arranged on one of the second mounting plates; 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.

[0007] 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.

[0008] As a preferred technical solution of the present invention, the front-end assembly further includes two first mounting seats, two sliding rods and two sleeve plates. The two first mounting seats are respectively fixed on the two first conveyor belts and are arranged opposite to each other. A hole is provided on each of the two first mounting seats. The two sliding rods are respectively fixed at both ends of the first mounting strip, and the two sliding rods are respectively slidably arranged in the two holes. The two sleeve plates are respectively fixedly sleeved on the two sliding rods. The two first mounting seats are located between the two sleeve plates. A return spring is connected between each first mounting seat and the corresponding sleeve plate. One end of the sliding rod away from the first mounting strip is fixed with a connecting rod.

[0009] As a preferred technical solution of the present invention, a plurality of ice-breaking teeth arranged in a linear array are fixed on the side surface of the first mounting strip.

[0010] As a preferred technical solution of the present invention, the rear-end assembly further includes two second mounting seats, two openings, two sliders, two arc-shaped elastic pieces and a cross plate. The two second mounting seats are respectively fixed on the two second conveyor belts and are arranged opposite to each other. The two openings are respectively provided on the two second mounting seats. The cross plate is arranged between the two second mounting seats. The two sliders are respectively fixed at both ends of the cross plate, and the two sliders are respectively slidably arranged in the two openings. The two arc-shaped elastic pieces are respectively fixed at the inner bottom positions of the two openings. The two arc-shaped elastic pieces respectively abut against the two sliders. Two limiting rings are respectively fixedly sleeved on each slider, and the two limiting rings are respectively located on both sides of the second mounting seat. A wiper strip is arranged on the second mounting strip. A pressing rod is fixed on one of the sliders.

[0011] As a preferred technical solution of the present invention, the control unit includes two first support rods, a fixing plate, a plurality of convex teeth and a guide plate. The two first support rods are respectively fixed at both ends of the second mounting plate. The fixing plate is fixed on the two first support rods. A plurality of convex teeth are fixed on the side surface of the fixing plate, and the plurality of convex teeth are arranged in a linear array. A slope is provided on each convex tooth. The guide plate is fixed on the side surface of the fixing plate and is located below the plurality of convex teeth. Two slopes with opposite inclination directions are provided at both ends of the guide plate.

[0012] 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 double-shaft motor. The driving rod is slidably assembled in the driving sleeve. Two opposite limiting ports are formed on the driving sleeve. Two limiting blocks are fixed on the driving rod, and the two limiting blocks respectively slide in the two limiting ports. 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 in a rectangular structure and the driving block is adapted to the driving port. The push plate is rotatably installed at one end of the driving rod located outside the driving sleeve.

[0013] As a preferred technical solution of the present invention, two air injection pipes are arranged on the second mounting strip. The two air injection pipes are respectively located on both sides of the second mounting strip. Each air injection pipe is connected to the second mounting strip through two second support rods. A plurality of air injection holes facing the wiper strip are formed on each air injection pipe. An air supply structure is arranged on one of the second mounting seats for supplying air into the two air injection pipes. Two third support rods are fixed on the side surface of one of the second mounting plates. A rack is fixedly connected to the ends of the two third support rods away from the second mounting plate. The air supply structure includes a gear. When the air supply structure passes by the rack, the gear meshes with the rack and drives the air supply structure to perform an air supply action.

[0014] As a preferred technical solution of the present invention, the air supply structure includes an air extraction box, an air inlet, a shaft rod, an air suction member and a gear. The air extraction box is fixed on the second mounting seat. The air inlet is formed on the side surface of the air extraction box. The shaft rod is rotatably installed on the air extraction box, and one end of the shaft rod extends to the outside of the air extraction box. The air suction member is fixedly sleeved on the shaft rod. The air suction member is arranged inside the air extraction box. The end of the shaft rod located outside the air extraction box is fixedly connected to the gear. The air suction member is composed of a cylinder body and a plurality of axial flow blades. The cylinder body is fixedly sleeved on the shaft rod. Each axial flow blade is fixed on the outer surface of the cylinder body. The plurality of axial flow blades are circumferentially and arrayedly distributed. Two air guide pipes are connected to the air extraction box. The ends of the two air guide pipes away from the air extraction box are respectively communicated with the two air injection pipes.

[0015] As a preferred technical solution of the present invention, two damping structures are arranged on the side surface of the photovoltaic panel body. The two damping structures are respectively arranged opposite to the two push plates. The damping structure includes an outer frame body, a damping plate and a connecting spring. The outer frame body is fixed on the side surface of the photovoltaic panel body. The damping plate is slidably arranged on the outer frame body. The damping plate and the outer frame body are connected by the connecting spring. The damping plate is arranged opposite to the push plate, and an arc surface adapted to the push plate is arranged on the damping plate. The damping plate presses the push plate under the action of the connecting spring.

[0016] The present invention has the following beneficial effects: 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. 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. 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. 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. 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. 6. The damping structure on the photovoltaic panel body keeps the damping plate pressing against the push plate through the connecting spring, ensuring the stability of the push plate, preventing the driving rod and the driving block from moving non-artificially, and ensuring the stable operation of the device. The push plate is rotatably mounted on the driving rod through a bearing, which can not only drive the driving rod to move but also 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 following the driving rod to rotate and causing significant wear with the damping plate, improving the durability and reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. Figure 2 is a schematic structural diagram of a self-cleaning solar photovoltaic panel protection device proposed by the present invention from another perspective; Figure 3 FIG. Figure 4 is a schematic structural diagram when the snow removal cloth is located above the photovoltaic panel body; Figure 1 is an enlarged view of the structure at A in FIG. Figure 5 FIG. Figure 3 is an enlarged view of the structure at B in FIG. Figure 6 is a schematic cross-sectional structure diagram of the first transmission wheel and the second transmission wheel; Figure 7 FIG. Figure 6 is an enlarged view of the structure at C in FIG. Figure 8 FIG. Figure 6 is an enlarged view of the structure at D in FIG. Figure 9 is a schematic structural diagram of the rear-end assembly; Figure 10 is a schematic cross-sectional structure diagram of the air extraction box; Figure 11 is a schematic structural diagram of the control unit; Figure 12 is a schematic structural diagram of the damping structure In the figure: 1. Photovoltaic panel body; 101. First mounting plate; 102. Second mounting plate; 103. Third mounting plate; 2. Biaxial 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. Slide bar; 43. Sleeve plate; 44. Return spring; 45. First mounting strip; 46. Ice-breaking teeth; 47. Connecting rod; 51. Second mounting seat; 52. Opening; 53. Slide block; 54. Arc-shaped elastic piece; 55. Limit ring; 56. Cross plate; 57. Second mounting strip; 58. Wiper strip; 6. Snow removal cloth; 71. First support rod; 72. Fixed plate; 73. Convex teeth; 74. Guide plate; 81. Driving sleeve; 82. Driving rod; 83. Limit port; 84. Limit block; 85. Driving block; 86. Pushing plate; 91. Second support rod; 92. Air spraying pipe; 93. Air spraying hole; 94. Air extraction box; 95. Air inlet; 96. Shaft rod; 97. Air suction part; 98. Gear; 99. Third support rod; 910. Rack. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] Refer to Figure 1-12 , a self-cleaning solar photovoltaic panel protection device, including a photovoltaic panel body 1, a biaxial motor 2, a transmission unit, a snow removal unit, a control unit and a driving unit. First mounting plates 101 are fixed on both sides of the photovoltaic panel body 1. Second mounting plates 102 are fixed at one ends of the two first mounting plates 101 away from the photovoltaic panel body 1. Third mounting plates 103 are fixed at the four corner positions of the photovoltaic panel body 1. The biaxial motor 2 is installed on the side of the photovoltaic panel body 1; 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; 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 strip 45, and the rear-end component includes a second mounting strip 57. The snow removal cloth 6 is fixed between the first mounting strip 45 and the second mounting strip 57. When the transmission unit operates, the snow removal cloth 6 moves around the photovoltaic panel body 1. The front-end component further 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 to each other. Through holes are formed in both of the two first mounting seats 41. The two slide bars 42 are respectively fixed at both ends of the first mounting strip 45, and the two slide bars 42 are respectively slidably arranged in the two through 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. A return spring 44 is connected between each first mounting seat 41 and the corresponding sleeve plate 43. One end of one of the slide bars 42 away from the first mounting strip 45 is fixed with a connecting rod 47. The rear-end component further includes two second mounting seats 51, two openings 52, two sliders 53, two arc-shaped elastic 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 formed in the two second mounting seats 51. The cross plate 56 is arranged between the two second mounting seats 51. The two sliders 53 are respectively fixed at both ends of the cross plate 56, and the two sliders 53 are respectively slidably arranged in the two openings 52. The two arc-shaped elastic pieces 54 are respectively fixed at the inner bottom positions of the two openings 52, and the two arc-shaped elastic pieces 54 respectively abut against the two sliders 53. Two limiting rings 55 are respectively fixedly sleeved on each slider 53, and the two limiting rings 55 are respectively located on both sides of the second mounting seat 51. A wiper strip 58 is arranged on the second mounting strip 57. A pressing 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 strip 45 can directly push the snow off the photovoltaic panel body 1. When there is more snow accumulated on the surface of the photovoltaic panel body 1, the first mounting strip 45 will insert 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 strip 45 moves between the snow and the photovoltaic panel body 1, the snow removal cloth 6 also enters accordingly. This causes the snow to be shoveled onto the snow removal cloth 6 and separated from the photovoltaic panel body 1. Further, the snow will move along with the moving snow removal cloth 6. When the snow removal cloth 6 bends and turns under the action of the transmission unit, the snow on the snow removal cloth 6 will fall off, thus realizing the effective cleaning of relatively thick snow; A number of ice-breaking teeth 46 distributed in a linear array are fixed on the side of the first mounting strip 45. 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 number 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. The fixing plate 72 is fixed on the two first support rods 71. A number of convex teeth 73 are all fixed on the side of the fixing plate 72, and the number of convex teeth 73 are distributed in a linear array. Each convex tooth 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 number of convex teeth 73. Both ends of the guide plate 74 are provided with two inclined surfaces with opposite inclination directions. 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 rod 42 to move, so that the first mounting strip 45 moves accordingly. When the connecting rod 47 moves between two adjacent convex teeth 73, the convex teeth 73 no longer contact the connecting rod 47. At this time, the first mounting strip 45 is reset under the action of two return springs 44. Based on the above process, under the action of the number of convex teeth 73, the first mounting strip 45 will synchronously vibrate during the movement above the photovoltaic panel body 1. When the first mounting strip 45 vibrates, a number of ice-breaking teeth 46 thereon vibrate accordingly. When the snow on the photovoltaic panel body 1 freezes into ice, the number of vibrating ice-breaking teeth 46 can continuously collide with the ice layer to achieve the effect of ice breaking; The driving unit consists of two driving units, and the two driving units are respectively connected to the two output shafts of the dual-axis motor 2. The driving unit includes a driving sleeve 81, a driving rod 82, a driving block 85 and a push plate 86. 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. Two opposite limiting ports 83 are formed in the driving sleeve 81. Two limiting blocks 84 are fixed on the driving rod 82, and the two limiting blocks 84 are respectively slid in the two limiting ports 83. One end of the driving rod �2 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 in a rectangular structure, and the driving block 85 is adapted to the driving port. The push plate 86 is rotatably installed at one end of the driving rod 82 located outside the driving sleeve 81. Two damping structures are arranged on the side surface of the photovoltaic panel body 1, and the two damping structures are respectively arranged opposite to the two push plates 86. The damping structure includes an outer frame body, a damping plate and a connecting spring. The outer frame body is fixed on the side surface of the photovoltaic panel body 1. The damping plate is slidably arranged on the outer frame body, and the damping plate is connected to the outer frame body through the connecting spring. The damping plate is arranged opposite to the push plate 86, and an arc surface adapted to the push plate 86 is arranged on the damping plate. The damping plate presses the push plate 86 under the action of the connecting spring. 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 driving rod 82 and the driving block 85 from moving under non-artificial conditions, so as to ensure the stable operation of the device. It is worth mentioning that the push plate 86 can be rotatably installed on the driving rod 82 through a bearing, which enables the push plate 86 to rotate relative to the driving rod 82 while driving the driving rod 82 to move. When the damping plate presses the push plate 86, the push plate 86 cannot rotate, and the driving rod 82 can rotate smoothly. This design can prevent the phenomenon that the push plate 86 follows the driving rod 82 to rotate and causes large wear with the damping plate; There are two air jet pipes 92 arranged on the second mounting strip 57. The two air jet pipes 92 are respectively located on both sides of the second mounting strip 57. Each air jet pipe 92 is connected to the second mounting strip 57 through two second support rods 91. A number of air jet holes 93 are provided on each air jet pipe 92 and are arranged towards the wiper strip 58. An air supply structure is provided on one of the second mounting seats 51 for supplying air into the two air jet pipes 92. Two third support rods 99 are fixed to the side surface of one of the second mounting plates 102. The ends of the two third support rods 99 away from the second mounting plate 102 are jointly fixed with a rack 910. The air supply structure includes a gear 98. When the air supply structure passes by the rack 910, the gear 98 meshes with the rack 910 and drives the air supply structure to perform an air supply action. The air supply structure includes an air extraction box 94, an air inlet 95, a shaft rod 96, an air suction member 97 and the gear 98. The air extraction box 94 is fixed on the second mounting seat 51. The air inlet 95 is provided on the side surface of the air extraction box 94. The shaft rod 96 is rotatably installed on the air extraction box 94, and one end of the shaft rod 96 extends to the outside of the air extraction box 94. The air suction member 97 is fixedly sleeved on the shaft rod 96. The air suction member 97 is arranged inside the air extraction box 94. The end of the shaft rod 96 located outside the air extraction box 94 is fixedly connected to the gear 98. The air suction member 97 is composed of a cylinder body and a number of axial flow blades. The cylinder body is fixedly sleeved on the shaft rod 96. Each axial flow blade is fixed on the outer surface of the cylinder body. The number of axial flow blades is circumferentially and arrayedly distributed. Two air guide pipes are connected to the air extraction box 94. The ends of the two air guide pipes away from the air extraction box 94 are respectively communicated with the two air jet pipes 92. When the second mounting strip 57 moves below the photovoltaic panel body 1, the gear 98 on the shaft rod 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 rod 96 to rotate, so that the shaft rod 96 drives the air suction member 97 to rotate. A number of axial flow blades are provided in the air suction member 97. When the number of axial flow blades rotates, they can perform an air extraction action and draw the air in the environment into the inside of the air extraction box 94 through the air inlet 95. Further, the gas will enter the two air jet pipes 92 through the two air guide pipes respectively and finally be ejected through a number of air jet holes 93. To sum up, when the second mounting strip 57 moves below the photovoltaic panel body 1, a number of air jet holes 93 can perform an air jet action. A number of air jet holes 93 are all arranged towards the wiper strip 58. Therefore, the gas ejected from a number of air jet holes 93 can blow off the water adhering to the surface of the wiper strip 58, play a role in removing water from the wiper strip 58, and avoid the phenomenon that water remains on the wiper strip 58 and condenses into ice.

[0020] The specific working principle of the present invention is as follows: 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 working normally, the first mounting strip 45, the second mounting strip 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 will not be blocked by the snow removal cloth 6, and normal light-receiving power generation work will be carried out. In addition, the two driving blocks 85 are respectively located in the driving ports on the two first rotating shafts 35, and the two driving blocks 85 do not contact the two second rotating shafts 36; When snow removal is required for the photovoltaic panel body 1, the staff first control the operation of the biaxial motor 2. When the biaxial motor 2 operates, the two output shafts thereon drive the two driving units to operate, so that the two driving units drive the two transmission components to operate respectively. Specifically, when the output shaft of the biaxial motor 2 rotates, the driving sleeve 81 rotates accordingly. When the driving sleeve 81 rotates, it can drive the driving rod 82 to rotate through the two limiting ports 83 and the two limiting blocks 84. The driving block 85 connected to the driving rod 82 will also rotate. Since the cross-sections of the driving block 85 and the driving port are both rectangular structures, and the shape of the driving block 85 is adapted to the driving port, the driving block 85 can drive the first rotating shaft 35 to rotate when it rotates. 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 port on the second rotating shaft 36, the second rotating shaft 36 will not rotate following the driving block 85. Based on the above process, when the biaxial motor 2 operates, the two first rotating shafts 35 in the two transmission components will respectively drive the corresponding first transmission wheels 31 to rotate. The rotating first transmission wheel 31 cooperates with the other first transmission wheel 31 in the transmission component, and can drive the first transmission belt 32 to rotate. The final effect achieved is that when the biaxial motor 2 operates, it drives the two first transmission belts 32 to rotate synchronously; When the two first drive belts 32 rotate, the first mounting seats 41 arranged on the first drive belts 32 move accordingly. When the two first mounting seats 41 move, they can drive the first mounting bar 45 to move through the two slide bars 42. When the first mounting bar 45 moves, it can pull the snow removal cloth 6 to move, and at the same time make the snow removal cloth 6 pull the second mounting bar 57 to move. When the first mounting bar 45 moves above the photovoltaic panel body 1, the first mounting bar 45 just contacts the surface of the photovoltaic panel body 1. Therefore, during the movement of the first mounting bar 45 on the photovoltaic panel body 1, it can push down the snow deposited on the surface of 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 there is more snow accumulated on the surface of the photovoltaic panel body 1, the first mounting bar 45 will insert 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 accordingly. This makes the snow be shoveled onto the snow removal cloth 6 and separated from the photovoltaic panel body 1. Further, the snow will move along with the moving snow removal cloth 6. When the snow removal cloth 6 bends and turns under the action of the transmission unit, the snow on the snow removal cloth 6 will fall off, thus realizing the effective cleaning of thicker snow. It should be noted that the snow removal cloth 6 can be made of nylon material, or anti-slip patterns can be set on the surface of the snow removal cloth 6, aiming to increase the friction between the snow removal cloth 6 and the snow, so that the snow can move along with the snow removal cloth 6; Furthermore, a number of ice-breaking teeth 46 are also provided on the first mounting bar 45. When the first mounting bar 45 moves above the photovoltaic panel body 1, the connecting rod 47 arranged on one of the slide bars 42 will move to a position opposite to a number of convex teeth 73 and first contact the convex tooth 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 no longer contact the connecting rod 47. At this time, the first mounting bar 45 resets under the action of the two return springs 44. Based on the above process, under the action of a number of convex teeth 73, the first mounting bar 45 will perform a vibration action synchronously during the movement above the photovoltaic panel body 1. When the first mounting bar 45 vibrates, a number of ice-breaking teeth 46 on it vibrate accordingly. When the snow on the photovoltaic panel body 1 freezes into ice, a number of vibrating ice-breaking teeth 46 can continuously collide with the ice layer to achieve the effect of ice breaking. Through this special design, even if the snow on the surface of the photovoltaic panel body 1 freezes into ice, the snow removal unit can still effectively clean it; When the snow accumulation is pushed off the photovoltaic panel body 1, there may still be a small amount of moisture, snow accumulation and broken ice remaining 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 of snow accumulation remaining on the photovoltaic panel body 1. Specifically, along with the movement of the first mounting strip 45, the second mounting strip 57 will also immediately move above the photovoltaic panel body 1. When the second mounting strip 57 moves above the photovoltaic panel body 1, the pressure rod provided on one of the sliders 53 will contact the inclined surface at the end of the guide plate 74 and slide downward along the inclined surface. When the pressure rod moves below the guide plate 74, the pressure rod will always move along the bottom surface of the guide plate 74 to keep the second mounting strip 57 in a downward pressing state all the time. When the second mounting strip 57 is pressed downward, the wiper strip 58 on the second mounting strip 57 will tightly press the surface of the photovoltaic panel body 1. In this case, during the process of the wiper strip 58 following the movement of the second mounting strip 57, the wiper strip 58 can scrape off the moisture, broken ice and snow accumulation remaining on the photovoltaic panel body 1, so as to ensure the cleaning effect on the surface of the photovoltaic panel body 1. It is worth noting that when the second mounting strip 57 moves, the sliders 53 at both ends will slide in the two openings 52. When the second mounting strip 57 is pressed downward, the two sliders 53 will squeeze the two arc-shaped elastic pieces 54. The two arc-shaped elastic pieces 54 are used for the automatic reset of the second mounting strip 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 elastic pieces 54. This design enables the wiper strip 58 not to tightly press the photovoltaic panel body 1 when it moves below the photovoltaic panel body 1, which can avoid unnecessary wear of the wiper strip 58 and thus extend the service life of the wiper strip 58. In addition, two limiting rings 55 are fixed on each slider 53, and the two limiting rings 55 are respectively located on both sides of the second mounting seat 51. The setting of the two limiting rings 55 is used to prevent the slider 53 from falling out of the opening 52; The present invention also designs the function of the drying wiper strip 58, which can avoid moisture remaining on the surface of the wiper strip 58, prevent the moisture remaining on the surface of the wiper strip 58 from condensing into ice in winter, and further avoid the ice layer on the surface of the wiper strip 58 from scratching the photovoltaic panel body 1 during the cleaning process. Specifically, when both the first mounting strip 45 and the second mounting strip 57 move below the photovoltaic panel body 1, the staff temporarily turns off the dual-axis motor 2, and then sequentially pushes the two push plates 86. When the push plates 86 move, they can drive the driving rods 82 to move, and the driving blocks 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 driving block 85 is inserted into the driving port on the second rotating shaft 36. When the driving block 85 is inserted into the driving port on the second rotating shaft 36, the driving block 85 will completely disengage from the driving port 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, while the first rotating shaft 35 will not rotate. After adjusting the two driving blocks 85, the staff starts the dual-axis motor 2 again. Since the two driving blocks 85 have been respectively inserted into the two driving ports on the two second rotating shafts 36, 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 operate, the two second mounting seats 51 will move synchronously and drive the second mounting strip 57 to move; When the second mounting strip 57 moves below the photovoltaic panel body 1, the gear 98 on the shaft rod 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 rod 96 to rotate, so that the shaft rod 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 air suction action and draw the air in the environment into the interior of the air suction box 94 through the air inlet 95. Further, the gas will enter the two spray pipes 92 through the two air guide pipes respectively and finally be ejected through a plurality of spray holes 93. In summary, when the second mounting strip 57 moves below the photovoltaic panel body 1, the plurality of spray holes 93 can perform a jetting action. The plurality of spray holes 93 are all arranged facing the wiper strip 58. Therefore, the gas ejected from the plurality of spray holes 93 can blow off the moisture attached to the surface of the wiper strip 58, playing a role in removing water from the wiper strip 58 and avoiding the phenomenon of moisture remaining on the wiper strip 58 and condensing into ice; It should be noted that the special design in the present invention enables the second mounting strip 57 to move independently without relying on the traction of the first mounting strip 45 and the snow removal cloth 6, which facilitates the drying treatment of the wiper strip 58. If the second mounting strip 57 can only move under the traction of the first mounting strip 45 and the snow removal cloth 6, after the jetting action is completed, the first mounting strip 45 will move above the photovoltaic panel body 1 again and cause obstruction to the photovoltaic panel body 1. Further, in order to avoid the occurrence of the obstruction phenomenon, the staff needs to control the dual-axis motor 2 to operate continuously, so that the first mounting strip 45 and the second mounting strip 57 move below the photovoltaic panel body 1 again, that is, the first mounting strip 45 and the second mounting strip 57 need to move around the photovoltaic panel body 1 twice to complete the self-cleaning action of the wiper strip 58. However, by setting the second mounting strip 57 that can move independently, it is not necessary for the first mounting strip 45 and the second mounting strip 57 to move around the photovoltaic panel body 1 twice. This not only simplifies the operation steps but also reduces the energy consumption; A damping structure for stabilizing the positions of the drive shaft and the drive block 85 is also provided on the photovoltaic panel body 1. 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-artificial circumstances, thus ensuring the stable operation of the device. It is worth mentioning that the push plate 86 is rotatably mounted on the drive rod 82 through a bearing, which enables the push plate 86 to rotate relative to the drive rod 82 while driving the drive rod 82 to move. When the damping plate presses the push plate 86, the push plate 86 cannot rotate, but 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 causes significant wear to the damping plate.

[0021] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope 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 biaxial motor (2), a transmission unit, a snow removal unit, a control unit and a drive unit; Among them, first mounting plates (101) are fixed on both sides of the photovoltaic panel body (1). Second mounting plates (102) are fixed at the ends of the two first mounting plates (101) away from the photovoltaic panel body (1). Third mounting plates (103) are fixed at the four corner positions of the photovoltaic panel body (1); Among them, the biaxial motor (2) is installed on the side of the photovoltaic panel body (1); Among them, the transmission unit is composed of two transmission components, and the two transmission components are respectively arranged on both sides of the photovoltaic panel body (1); Among them, 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 strip (45), the rear-end component includes a second mounting strip (57), and the snow removal cloth (6) is fixed between the first mounting strip (45) and the second mounting strip (57). When the transmission unit operates, the snow removal cloth (6) moves around the photovoltaic panel body (1); Among them, the control unit is arranged on one of the second mounting plates (102); Among them, the drive unit is composed of two drive units, and the two drive units are respectively connected to the two output shafts of the biaxial motor (2).

2. The self-cleaning solar photovoltaic panel protection device according to claim 1, characterized in that, The transmission component 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 installed on two third mounting plates (103) on the same side. The two first transmission wheels (31) are drivingly connected by a first transmission belt (32). The two second transmission wheels (33) are respectively rotatably installed at both ends of the second mounting plate (102). The two second transmission wheels (33) are drivingly connected by a second transmission belt (34). The first rotating shaft (35) is rotatably installed on one of the third mounting plates (103). The second rotating shaft (36) is rotatably installed at 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). Driving ports are formed on both the first rotating shaft (35) and the second rotating shaft (36). The cross sections of the two driving ports are both rectangular structures, and the two driving ports are also coaxially arranged.

3. A self-cleaning solar photovoltaic panel protection device according to claim 1, characterized in that, The front-end component further 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 drive belts (32), and the two first mounting seats (41) are arranged opposite to each other. Hole positions are formed on both of the two first mounting seats (41). The two slide bars (42) are respectively fixed at two ends of the first mounting strip (45), and the two slide bars (42) are respectively slidably arranged in the two hole positions. 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). A return spring (44) is connected between each first mounting seat (41) and the corresponding sleeve plate (43). A connecting rod (47) is fixed at one end of one of the slide bars (42) away from the first mounting strip (45).

4. The self-cleaning solar photovoltaic panel protection device according to claim 3, characterized in that, A number of ice-breaking teeth (46) distributed in a linear array are fixed on the side surface of the first mounting strip (45).

5. A self-cleaning solar photovoltaic panel protection device according to claim 1, wherein, The rear-end component further includes two second mounting seats (51), two openings (52), two sliders (53), two arc-shaped elastic pieces (54) and a cross plate (56). The two second mounting seats (51) are respectively fixed on the two second drive belts (34), and the two second mounting seats (51) are arranged opposite to each other. The two openings (52) are respectively formed on the two second mounting seats (51). The cross plate (56) is arranged between the two second mounting seats (51). The two sliders (53) are respectively fixed at two ends of the cross plate (56), and the two sliders (53) are respectively slidably arranged in the two openings (52). The two arc-shaped elastic pieces (54) are respectively fixed at the inner bottom positions of the two openings (52), and the two arc-shaped elastic pieces (54) respectively abut against the two sliders (53). Two limiting rings (55) are respectively fixedly sleeved on each slider (53), and the two limiting rings (55) are respectively located on both sides of the second mounting seat (51). A wiper strip (58) is arranged on the second mounting strip (57). A pressing rod is fixed on one of the sliders (53).

6. The self-cleaning solar photovoltaic panel protection device according to claim 1, characterized in that, The control unit includes two first support rods (71), a fixing plate (72), a number of convex teeth (73) and a guide plate (74). 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). A number of convex teeth (73) are all fixed on the side surface of the fixing plate (72), and the number of convex teeth (73) are distributed in a linear array. An inclined surface is arranged on each convex tooth (73). The guide plate (74) is fixed on the side surface of the fixing plate (72), and the guide plate (74) is located below the number of convex teeth (73). Two inclined surfaces with opposite inclination directions are arranged at two ends of the guide plate (74).

7. The self-cleaning solar photovoltaic panel protection device according to claim 2, characterized in that, The driving unit includes a driving sleeve (81), a driving rod (82), a driving block (85) and a push plate (86). The driving sleeve (81) is fixed on the output shaft of the biaxial motor (2). The driving rod (82) is slidably assembled in the driving sleeve (81). Two opposite limiting ports (83) are formed in the driving sleeve (81). Two limiting blocks (84) are fixed on the driving rod (82). The two limiting blocks (84) slide in the two limiting ports (83) respectively. One end of the driving rod (82) extends to the outside of the driving sleeve (81) and is fixedly connected with the driving block (85). The cross section of the driving block (85) is of a rectangular structure and the driving block (85) is adapted to the driving port. The push plate (86) is rotatably installed at one end of the driving rod (82) located outside the driving sleeve (81).

8. The self-cleaning solar photovoltaic panel protection device according to claim 5, characterized in that, Two air jet pipes (92) are arranged on the second mounting strip (57). The two air jet pipes (92) are respectively located on both sides of the second mounting strip (57). Each air jet pipe (92) is connected to the second mounting strip (57) through two second support rods (91). A plurality of air jet holes (93) are formed in each air jet pipe (92) and are arranged towards the wiper strip (58). An air supply structure is arranged on one of the second mounting seats (51) for supplying air into the two air jet pipes (92). Two third support rods (99) are fixed on the side surface of one of the second mounting plates (102). A rack (910) is fixedly connected to the ends of the two third support rods (99) far away from the second mounting plate (102). The air supply structure includes a gear (98). When the air supply structure passes by the rack (910), the gear (98) meshes with the rack (910) and drives the air supply structure to perform an air supply action.

9. The self-cleaning solar photovoltaic panel protection device according to claim 8, characterized in that, The air supply structure includes an air extraction box (94), an air inlet (95), a shaft rod (96), an air suction member (97) and a gear (98). The air extraction box (94) is fixed on the second mounting seat (51). The air inlet (95) is formed in the side surface of the air extraction box (94). The shaft rod (96) is rotatably installed on the air extraction box (94), and one end of the shaft rod (96) extends to the outside of the air extraction box (94). The air suction member (97) is fixedly sleeved on the shaft rod (96). The air suction member (97) is arranged inside the air extraction box (94). The end of the shaft rod (96) located outside the air extraction box (94) is fixedly connected with the gear (98). The air suction member (97) is composed of a cylinder body and a plurality of axial flow blades. The cylinder body is fixedly sleeved on the shaft rod (96). Each axial flow blade is fixed on the outer surface of the cylinder body. The plurality of axial flow blades are circumferentially and arrayedly distributed. Two air guide pipes are connected to the air extraction box (94). The ends of the two air guide pipes far away from the air extraction box (94) are respectively communicated with the two air jet pipes (92).

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

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