A solar panel fixing device for photovoltaic power generation engineering

Abstract

The application discloses a solar panel fixing device for photovoltaic power generation engineering and relates to the technical field of solar energy industry. The solar panel fixing device comprises a solar panel fixed on a photovoltaic support and a temperature sensor, further comprises a heat dissipation plate fixedly installed on the photovoltaic support, the heat dissipation plate is in contact with the bottom of the solar panel, and a plurality of heat dissipation fans are installed at one end of the heat dissipation plate away from the solar panel. The device has the advantages that: the device can automatically remove the snow on the surface of the solar panel in winter, avoid the loosening of the fixing structure and the deformation and damage of the panel body caused by the accumulation of snow, and ensure the installation stability of the photovoltaic power generation engineering; meanwhile, the device can dissipate heat on the back and surface of the solar panel, effectively improve the cooling effect, ensure the power generation efficiency of the solar panel, automatically soften the stubborn stains such as bird droppings on the solar panel during the operation of the heat dissipation operation, and then effectively remove the stains, thereby avoiding the problem that the solar panel is damaged due to the thermal spot effect in a high-temperature environment.

Description

Technical Field

[0001] This invention relates to the field of solar energy technology, and in particular to a solar panel fixing device for photovoltaic power generation projects. Background Technology

[0002] Photovoltaic solar panels, also known as solar cells, are devices that convert sunlight into electrical energy. Electrons in their cell materials are broken down by the photon energy of sunlight, creating electron-hole pairs. Under the influence of an external electric field, the electrons and holes separate to form an electric current and generate electrical energy. Photovoltaic solar panels are becoming increasingly widely used.

[0003] In practical engineering applications, photovoltaic solar panels are usually installed in open outdoor areas. In areas with heavy snowfall in winter, snow is easily accumulated on the surface of the solar panels. As the snow continues to accumulate, the additional load on the solar panels increases. When it exceeds the design bearing capacity of the photovoltaic support and fixed structure, it will cause deformation of the fixed structure, loosening of fasteners, or even deformation and damage of the entire solar panel, which seriously affects the fixed reliability and structural safety of the photovoltaic power generation project. In addition, the power generation efficiency of photovoltaic solar panels is directly related to factors such as the materials themselves, sunlight conditions, and temperature. When the outside temperature is higher than the standard operating temperature of photovoltaic solar panels, their power generation efficiency will decrease. High temperature environments will also reduce the lifespan of photovoltaic solar panels. When there are obstructions such as dust and bird droppings on the solar panels, sunlight cannot be evenly distributed to the surface of the cells. The obstructed areas will become a load, consuming the electrical energy generated by other normal areas, thus causing a hot spot effect, damaging the cells, or even causing a fire.

[0004] Therefore, it is necessary to design a solar panel fixing device for photovoltaic power generation projects. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a solar panel fixing device for photovoltaic power generation projects, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A solar panel fixing device for photovoltaic power generation projects includes a solar panel fixed on a photovoltaic bracket and a temperature sensor, and further includes: A heat dissipation plate is fixedly installed on a photovoltaic bracket, the heat dissipation plate is in contact with the bottom of the solar panel, and multiple cooling fans are installed on the end of the heat dissipation plate away from the solar panel; Water tanks that are fixedly installed on photovoltaic brackets; The water storage unit is used to collect rainwater. The water storage unit includes a water collection tank installed on the photovoltaic support, and a one-way water inlet pipe is connected between the water collection tank and the water tank. The snow removal unit is used to remove snow from the solar panels. The snow removal unit includes two scrapers that are slidably mounted on the photovoltaic bracket, and each of the two scrapers is equipped with a pulling component between itself and the water collection tank. A cooling and softening component is installed between the water tank and the heat dissipation plate, and the cooling and softening component is in conjunction with the surface of the solar panel. The cooling and softening component is used to cool the surface of the solar panel and soften bird droppings. A cooling and cleaning component is used to further cool the surface of the solar panel and remove softened bird droppings. The cooling and cleaning component includes two one-way pressurization pipes fixedly connected to the water tank, and a guide pipe is fixedly connected between the two one-way pressurization pipes. The guide pipe works in conjunction with the cooling and softening component. The drive assembly includes a motor fixedly mounted on a water tank, the motor being electrically connected to a temperature sensor, a pull-out mechanism being installed between the motor and the water tank, a transmission mechanism being installed between the motor and multiple cooling fans, and a swing mechanism being installed between the motor and a cooling softening assembly.

[0007] Furthermore, two support rings that are slidably connected to the photovoltaic bracket are fixedly installed on the side wall of the water collection tank. Two fixed plates are fixedly installed at the front end of the photovoltaic bracket, and compression springs are installed between the two fixed plates and the two support rings. Guide grooves are opened on both the left and right side walls of the photovoltaic bracket, and support rods are slidably installed in the two guide grooves. One-way swing frames are fixedly installed on the two support rods through side rods, and the two one-way swing frames are respectively oscillating with the two scrapers.

[0008] Furthermore, the pulling assembly includes an L-shaped frame fixedly installed on the side wall of the photovoltaic support, and a winding wheel is rotatably installed on the L-shaped frame via a rotating shaft. A steel rope is installed between the winding wheel and the support rod, and a torsion spring is installed between the L-shaped frame and the winding wheel. A fixed gear is fixedly installed at the end of the winding wheel away from the L-shaped frame, and a drive rack that meshes with the fixed gear is fixedly installed at the upper end of the support ring.

[0009] Furthermore, the cooling and softening assembly includes a one-way water pumping fixed pipe fixedly connected to the water tank, and a transfer frame fixedly connected to the one-way water pumping fixed pipe. Multiple air outlet pipes are fixedly connected between the transfer frame and the guide frame, and multiple air inlet pipes are fixedly connected to the end of the transfer frame away from the air outlet pipes. Each air inlet pipe is equipped with a flat nozzle that mates with the upper surface of the solar panel via a rotating mechanism. Two one-way water outlet pipes are fixedly connected between the water tank and the upper end of the transfer frame. A water inlet seat is fixedly installed on the top of the transfer frame, and the bottom of the water inlet seat is through-hole. Multiple flat diversion grooves that mate with the water inlet seat are provided on the upper side wall of the transfer frame.

[0010] Furthermore, the rotating mechanism includes a fixed ring fixedly installed on the upper end of the air inlet pipe, and a connecting pipe is rotatably and sealed on the fixed ring, the connecting pipe being fixedly connected to the flat nozzle.

[0011] Furthermore, the pull-out mechanism includes a reciprocating screw fixedly installed on the output end of the motor, and a movable ring is threadedly installed on the reciprocating screw. A piston plate is fixedly installed on the movable ring through two L-shaped rods, and the piston plate is slidably connected to the water tank in a sealed manner.

[0012] Furthermore, the transmission assembly includes a rotating rod rotatably mounted on the bottom of the heat sink, and a belt drive structure is installed between the rotating rod and multiple cooling fans. A drive rod is fixedly mounted on the top of the reciprocating screw, and a universal joint is installed between the drive rod and the rotating rod.

[0013] Furthermore, the guide pipe is composed of a straight pipe and multiple pressurizing pipes. The straight pipe is fixedly connected between two one-way pressurizing pipes, and the multiple pressurizing pipes are respectively fixedly connected between the straight pipe and the corresponding connecting pipe. A one-way air inlet is provided on the upper side wall of the water tank. The one-way water pumping fixed pipe and the one-way water outlet pipe are both connected to the bottom of the water tank, and the one-way pressurizing pipe is connected to the top of the water tank.

[0014] Furthermore, the swing mechanism includes a movable rack slidably disposed on the water tank, an incomplete gear ring that engages with the movable rack is fixedly installed at the output end of the motor, an mounting rod is fixedly installed on the movable rack via two support rods, a fixed gear ring is fixedly installed on each of the connecting pipes, and multiple fixed racks that mesh with the corresponding fixed gear rings are fixedly installed on the mounting rod.

[0015] Furthermore, a sliding rod is fixedly installed at the bottom of the movable rack, a sliding groove is provided on the upper side wall of the water tank to cooperate with the sliding rod, a spring is installed between the sliding groove and the sliding rod, and a damping guide structure is installed between the sliding rod and the sliding groove.

[0016] Compared with existing technologies, the advantages of this invention are: 1. It has the advantage of automatically removing snow from the surface of solar panels, avoiding deformation and damage to the solar panels caused by excessive snow accumulation. Specifically, through the cooperation of the water storage unit and the snow removal unit, the weight of the snow can be used to automatically scrape and remove the snow from the surface of the solar panels.

[0017] 2. It has the advantages of surface cooling and comprehensive cleaning coverage. Specifically, through the design of the swing mechanism, the flat nozzle can automatically swing back and forth during the operation of the motor, thereby ensuring the cooling and cleaning coverage of the solar panel surface.

[0018] 3. It can significantly improve the overall heat dissipation efficiency. Specifically, through the cooperation of heat dissipation plate, cooling fan and cooling softening component, when the outside temperature is high, it can simultaneously cool down the back and surface of the solar panel, avoid damage caused by long-term exposure to high temperature environment, and also effectively improve power generation efficiency.

[0019] 4. It has the advantages of humidifying the surface of solar panels and reducing the difficulty of cleaning stubborn stains. Specifically, through the cooperation of the transfer frame, water tank and pull-out component, the airflow discharged from the cooling fan can carry water and spray it onto the surface of the solar panel after passing through the water curtain. The presence of water will further improve the heat dissipation of the surface and can also soften the stubborn stains on it, making it easier to clean later.

[0020] 5. It has the advantage of effectively removing impurities from the surface of solar panels, avoiding damage caused by hot spot effect. Specifically, through the design of the cooling cleaning component, after softening stubborn stains, a high-pressure airflow is sprayed onto the surface of the solar panel to clean the impurities.

[0021] 6. It has the advantages of ingenious operation and high degree of automation. Specifically, through the design of the drive component, it can automatically and orderly complete the actions of heat dissipation on the back of the solar panel, surface humidification and cooling, and surface cleaning when the motor is working. The switching between actions is completed automatically according to the working time of the motor, without the need for manual control.

[0022] In summary, this invention can automatically remove snow from the surface of solar panels in winter, preventing snow accumulation from causing loosening of the fixing structure and deformation of the panels, thus ensuring the stability of photovoltaic power generation projects. Simultaneously, it can dissipate heat from the back and surface of the solar panels, effectively improving cooling and ensuring the power generation efficiency of the solar panels. As the heat dissipation operation continues, it can automatically soften stubborn stains such as bird droppings before effectively removing them, preventing damage to the solar panels due to hot spot effects in high-temperature environments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a solar panel fixing device for photovoltaic power generation engineering proposed in this invention; Figure 2 for Figure 1 A schematic diagram after being deflected upwards at a certain angle; Figure 3 for Figure 1 A schematic diagram showing the structure at the point where the water collection tank and scraper have been removed; Figure 4 for Figure 3 A schematic diagram after being deflected upwards at a certain angle; Figure 5 for Figure 3 A schematic diagram of the rear structure; Figure 6 for Figure 3 A structural diagram showing the structure after removing the photovoltaic support and solar panels; Figure 7 for Figure 6 Enlarged schematic diagram of the structure at the heat sink; Figure 8 for Figure 7 A structural decomposition diagram; Figure 9 for Figure 6 Enlarged schematic diagram of the structure at the central transition frame; Figure 10 for Figure 9 A structural decomposition diagram; Figure 11 for Figure 6 Enlarged schematic diagram of the structure at the unidirectional booster pipe; Figure 12 for Figure 11 A structural decomposition diagram; Figure 13 for Figure 12 Enlarged structural diagram of section A; Figure 14 for Figure 8 Enlarged schematic diagram of the structure at the cooling fan location; Figure 15 for Figure 10 Enlarged schematic diagram of the structure at the motor; Figure 16 for Figure 1 Schematic diagram of the structure of the central water tank and scraper; Figure 17 for Figure 16 Enlarged structural diagram of the middle side rod; Figure 18 for Figure 16 Enlarged schematic diagram of the structure at the take-up reel.

[0024] In the diagram: 1. Photovoltaic bracket; 2. Solar panel; 3. Heat sink; 4. Cooling fan; 5. Flow guide frame; 6. Water tank; 7. One-way water pumping fixed pipe; 8. Transfer frame; 9. Air outlet pipe; 10. Air inlet pipe; 11. Connecting pipe; 12. Flat nozzle; 13. Water inlet seat; 14. One-way water outlet pipe; 15. Flat diversion channel; 16. Piston plate; 17. Motor; 18. Reciprocating screw; 19. Moving ring; 20. L-shaped rod; 21. Drive rod; 22. Universal joint; 23. Rotating rod; 24. Belt drive structure; 25. One-way booster pipe; 26. Flow guide pipe; 2 7. Fixed ring; 28. Fixed gear ring; 29. ​​Slide rod; 30. Spring; 31. Moving rack; 32. Incomplete gear ring; 33. Support rod; 34. Mounting rod; 35. Fixed rack; 36. One-way air inlet; 37. Water collection tank; 38. One-way water inlet pipe; 39. Guide groove; 40. Support rod; 41. Side rod; 42. One-way swing frame; 43. Scraper; 44. Support ring; 45. Fixed plate; 46. Compression spring; 47. L-shaped frame; 48. Rotating shaft; 49. Rewinding reel; 50. Steel rope; 51. Torsion spring; 52. Fixed gear; 53. Drive rack. Detailed Implementation

[0025] Reference Figures 1-18 A solar panel fixing device for photovoltaic power generation projects includes a solar panel 2 fixed on a photovoltaic bracket 1 and a temperature sensor. The installation method of the solar panel 2 on the photovoltaic bracket 1 can be completed by bolt installation or photovoltaic clamps, etc., according to the actual installation requirements, which will not be described in detail here.

[0026] A water tank 6 is fixedly installed on the photovoltaic bracket 1. Rainwater can be collected and stored by installing components such as a water collection funnel on the outside of the water tank 6. Two fixed plates 45 are fixedly installed at the front end of the photovoltaic bracket 1. Each fixed plate 45 is equipped with a support ring 44 by a compression spring 46. A water collection trough 37 is fixedly installed between the two support rings 44. A filter plate is installed on the top of the water collection trough 37. The water collection trough 37 can collect water dripping from the solar panel 2 and rainwater. A one-way water inlet pipe 38 is connected between the water collection trough 37 and the water tank 6. The one-way water inlet pipe 38 is used to input the water collected in the water collection trough 37 into the water tank 6 to provide the required water for humidification and cooling of the surface of the solar panel 2. Due to the design of the compression spring 46 and the support ring 44, the water collection trough 37 can move up and down at the front end of the photovoltaic bracket 1. Therefore, the one-way water inlet pipe 38 needs to be a flexible hose to meet the up and down movement of the water collection trough 37.

[0027] Guide grooves 39 are provided on both the left and right side walls of the photovoltaic support 1. Support rods 40 are slidably installed in both guide grooves 39. One-way swing frames 42 are fixedly installed on both support rods 40 via side rods 41. Scrapers 43 are oscillatingly installed on both one-way swing frames 42 via torsion spring shafts. The torsion spring shaft is a combination of a torsion spring and a cylindrical shaft, which allows the scraper 43 to swing and return to its original position within the one-way swing frame 42. The design of the one-way swing frame 42 allows the scraper 43 to scrape the snow off the surface of the solar panel 2 when there is snow on it, thus avoiding the problem of the solar panel 2 being deformed and damaged.

[0028] L-shaped frames 47 are fixedly installed on both the left and right side walls of the photovoltaic support 1, and rotating shafts 48 are rotatably installed on both L-shaped frames 47. Rewinding wheels 49 are fixedly installed on both rotating shafts 48, and steel ropes 50 are fixedly connected between each of the two rewinding wheels 49 and the corresponding support rods 40. A tension spring is installed between the end of the support rod 40 away from the steel rope 50 and the guide groove 39. When the rewinding wheel 49 rotates clockwise ( Figure 16 (Looking to the left), the support rod 40 can be moved forward on the surface of the solar panel 2 by winding the steel rope 50, and the snow on the surface of the solar panel 2 can be automatically scraped off.

[0029] A torsion spring 51 is installed between the winding reel 49 and the L-shaped frame 47. A fixed gear 52 is fixedly installed at the end of the winding reel 49 away from the L-shaped frame 47. A drive rack 53 that meshes with the fixed gear 52 is fixedly installed at the upper end of the support ring 44. When there is snow on the photovoltaic support 1, some snow will fall onto the water collection trough 37 due to its tilted installation. As the snow accumulates, the water collection trough 37 will move downward against the elastic force of the compression spring 46. At this time, the drive rack 53 drives the fixed gear 52 to rotate clockwise, thereby driving the winding reel 49 to wind up the steel rope 50, so that the scraper 43 automatically completes the removal of snow from the surface of the solar panel 2. In the snow removal process, after the snow on the water collection tank 37 melts, the elastic force of the compression spring 46 causes the water collection tank 37 to move upward and reset. At this time, the elastic force of the torsion spring 51 and the tension spring will cause the steel rope 50 and the scraper 43 to reset. If there is still some snow on the surface of the solar panel 2, the resistance exerted by the snow on the scraper 43 will cause the scraper 43 to deflect. Due to the limitation of the swing direction of the scraper 43 by the one-way swing frame 42, the two scrapers 43 are tilted towards the middle on the surface of the solar panel 2 after the angle deflection. Then, during the reset process of the scraper 43, the snow that still exists on the surface of the solar panel 2 can be discharged through the space between the two scrapers.

[0030] Furthermore, when there is heavy rain, the water collection tank 37 first inputs water into the water tank 6, and then the water inside will be filled again. At this time, the water collection tank 37 will also move downward under the weight of the water inside, and the scraper 43 will also move forward on the surface of the solar panel 2. Through the movement of the scraper 43 and the washing of the heavy rain, the surface of the solar panel 2 can be better cleaned, removing stubborn stains and improving the service life of the solar panel 2 and subsequent power generation efficiency.

[0031] A heat sink 3 is fixedly installed at the bottom of the photovoltaic bracket 1. The heat sink 3 is in contact with the bottom of the solar panel 2. The heat sink 3 is made of a high thermal conductivity material and is equipped with heat dissipation fins to increase the heat dissipation area and heat exchange efficiency on the back of the solar panel 2. Multiple cooling fans 4 are installed at the end of the heat sink 3 away from the solar panel 2. When the cooling fans 4 are running, they provide a suction effect to increase airflow and remove the heat on the heat sink 3, so that the heat sink 3 has a better cooling effect on the back of the solar panel 2.

[0032] A one-way suction pipe 7 is fixedly connected to the water tank 6, and a transfer frame 8 is fixedly connected to the one-way suction pipe 7. Multiple air outlet pipes 9 are fixedly connected between the transfer frame 8 and the guide frame 5, and multiple air inlet pipes 10 are fixedly connected to the end of the transfer frame 8 away from the air outlet pipes 9. Each air inlet pipe 10 is equipped with a flat nozzle 12 that matches the upper surface of the solar panel 2. When the cooling fan 4 is running, it draws air from the cooling plate 3. Therefore, the air it exhausts will converge at the connection between the multiple air outlet pipes 9 and the guide frame 5 under the action of the guide frame 5, and the gas will then pass through the multiple air outlet pipes. Pipe 9 enters the transfer frame 8, and then enters the flat nozzle 12 through the air inlet pipe 10. The front opening of the flat nozzle 12 is flat. When the gas passes through the front opening, it will accelerate and pressurize to a certain extent. Since the flat nozzle 12 is in contact with the upper surface of the solar panel 2, the air blown out from it can cool the upper surface of the solar panel 2. Combined with the heat dissipation plate 3 to dissipate heat on the back of the solar panel 2, the overall temperature of the solar panel 2 can be effectively reduced. This can reduce problems such as reduced conversion efficiency of the solar panel 2 and hot spot effect caused by high temperature.

[0033] Two one-way water outlet pipes 14 are fixedly connected between the water tank 6 and the upper end of the transfer frame 8. A water inlet seat 13 is fixedly installed on the top of the transfer frame 8, and the bottom of the water inlet seat 13 is through-hole. The upper side wall of the transfer frame 8 is provided with multiple flat diversion grooves 15 that cooperate with the water inlet seat 13. Water in the water tank 6 can be sent into the water inlet seat 13 through the one-way water outlet pipes 14. At this time, under the action of multiple flat diversion grooves 15, the water flowing into the transfer frame 8 forms a water curtain. Therefore, the airflow passing through the transfer frame 8 will carry water out under the action of the water curtain, so that the air inlet pipe 10 sprays out gas with water from the flat nozzle 12. This part of the water evaporates and vaporizes quickly on the surface of the solar panel 2. The evaporation heat absorption and wind action can further improve the cooling treatment of the surface of the solar panel 2. The transfer frame 8 is designed to be wide at both ends and narrow in the middle. Through this design, the thickness of the water curtain in the middle of the transfer frame 8 is smaller, which makes it easier for the gas entering the transfer frame 8 to carry away the water.

[0034] A motor 17 is fixedly installed on the water tank 6. The motor 17 is a common type of motor that can only rotate in one direction in daily life and work. A reciprocating screw 18 is fixedly installed on the output end of the motor 17, and a moving ring 19 is threaded on the reciprocating screw 18. Through the cooperation of the reciprocating screw 18 and the moving ring 19, when the motor 17 is working, the moving ring 19 can move up and down within a certain range of movement. A piston plate 16 is fixedly installed on the moving ring 19 through two L-shaped rods 20, and the piston plate 16 is sealed and slidably connected to the water tank 6. When the moving ring 19 moves up and down, the design of the L-shaped rods 20 can drive the piston plate 16 to move up and down in the water tank 6. When the piston plate 16 moves down, the pressure at the bottom of the water tank 6 increases, and the water can flow out through the one-way water outlet pipe 14 and form a water curtain in the transfer frame 8 through the water inlet seat 13 to humidify the gas and improve the cooling effect on the surface of the solar panel 2.

[0035] The upper side wall of the water tank 6 is provided with a one-way air inlet 36. The one-way water pumping fixed pipe 7 and the one-way water outlet pipe 14 are all connected to the bottom of the water tank 6. The one-way pressure boosting pipe 25 is connected to the top of the water tank 6. When the piston plate 16 moves down in the water tank 6, the water flows out through the one-way water outlet pipe 14. Then, when the piston plate 16 moves up, the one-way water pumping fixed pipe 7 draws the water back into the water tank 6, thereby ensuring that the pressure at the bottom of the water tank 6 is constant. Through the design of the one-way air inlet 36, external gas can be drawn into the water tank 6 above the piston plate 16 when the piston plate 16 moves down, thereby ensuring that the pressure at the upper part of the piston plate 16 is constant when it moves down, and ensuring the stable downward movement of the piston plate 16.

[0036] A fixing ring 27 is fixedly installed at the upper end of the air inlet pipe 10, and a connecting pipe 11 is rotatably installed on the fixing ring 27. The connecting pipe 11 is fixedly connected to the flat nozzle 12. Through the rotational design of the connecting pipe 11 and the fixing ring 27, the flat nozzle 12 can rotate when driven, thereby controlling the coverage of the gas it sprays, so as to ensure effective cooling of the entire upper surface of the solar panel 2.

[0037] Two unidirectional booster pipes 25 are fixedly connected to the water tank 6, and a guide pipe 26 is fixedly connected between the two unidirectional booster pipes 25. The guide pipe 26 consists of a straight pipe and multiple booster pipes. The straight pipe is fixedly connected between the two unidirectional booster pipes 25, and the multiple booster pipes are fixedly connected between the straight pipe and the corresponding connecting pipe 11. The design of the unidirectional booster pipe 25 allows gas to enter the connecting pipe 11 from one direction, preventing the airflow ejected from the air inlet pipe 10 from being ejected from the unidirectional booster pipe 25. Furthermore, the front end of the unidirectional booster pipe 25 is tapered. By utilizing the change in orifice diameter, the airflow velocity ejected from it can be increased, thereby combining with the airflow ejected from the air inlet pipe 10 to achieve a high-pressure gas flushing of the upper surface of the solar panel 2. This further improves the cooling effect on the upper surface of the solar panel 2. In addition, the high-speed airflow flushing can also remove dust and impurities that fall on the surface of the solar panel 2, improving the cleanliness of the solar panel 2 surface and thus ensuring its power generation efficiency.

[0038] Meanwhile, since the high-pressure airflow is ejected from the one-way booster pipe 25 during the upward movement of the piston plate 16, and the one-way water outlet pipe 14 stops injecting water into the transfer frame 8 at this time, the airflow entering the transfer frame 8 from the air outlet pipe 9 will not be obstructed, and its flow rate into the flat nozzle 12 will be relatively faster. Combined with the high-pressure airflow ejected from the one-way booster pipe 25, the cleaning effect on the surface of the solar panel 2 can be further improved. Furthermore, since the high-pressure airflow is ejected after the humidifying airflow is ejected, the humid airflow will also soften the stubborn stains (such as bird droppings) attached to the surface of the solar panel 2 when it passes over it. The stubborn stains can be removed by the flushing of the high-pressure airflow later, avoiding the problem of the solar panel 2 being damaged due to the hot spot effect caused by the presence of stubborn stains.

[0039] A rotating rod 23 is rotatably mounted at the bottom center of the heat sink 3, and a belt drive structure 24 is installed between the rotating rod 23 and multiple cooling fans 4. The belt drive structure 24 consists of a belt, a large pulley, and four small pulleys. The four small pulleys are fixedly mounted on the corresponding cooling fans 4, and the large pulley is fixedly mounted on the rotating rod 23. The belt is located between the large pulley and the four small pulleys. Through the design of the belt drive structure 24, when the rotating rod 23 rotates, it can drive multiple cooling fans 4 to rotate simultaneously at a faster speed, thereby providing power for cooling the back of the solar panel 2. A drive rod 21 is fixedly mounted on the top of the reciprocating screw 18, and a universal joint 22 is installed between the drive rod 21 and the rotating rod 23. Through the design of the universal joint 22, when the drive rod 21 rotates, it can drive the rotating rod 23 to rotate simultaneously. Therefore, the operation of the motor 17 can simultaneously drive the movement of the piston plate 16 and the rotation of the cooling fans 4, thereby simultaneously controlling the heat dissipation and cooling of the back of the solar panel 2.

[0040] A movable rack 31 is slidably mounted on the water tank 6. An incomplete gear ring 32, which meshes with the movable rack 31, is fixedly mounted on the output end of the motor 17. When the motor 17 operates, the output end drives the incomplete gear ring 32 to rotate. During this rotation, the incomplete gear ring 32 is engaged with the movable rack 31 for a period of time, causing the movable rack 31 to move on the water tank 6. Mounting rods 34 are fixedly mounted on the movable rack 31 via two support rods 33. When the movable rack 31 moves, mounting rods 34 are mounted on the two support rods. The action of 33 will drive the mounting rod 34 to move simultaneously. Each connecting pipe 11 is fixedly installed with a fixed toothed ring 28. The mounting rod 34 is fixedly installed with multiple fixed racks 35 that mesh with the corresponding fixed toothed rings 28. When the mounting rod 34 moves, the meshing effect between the fixed racks 35 and the corresponding fixed toothed rings 28 will cause the connecting pipe 11 to rotate. At this time, the flat nozzle 12 installed on the connecting pipe 11 can rotate simultaneously, thereby increasing the water spray coverage of the flat nozzle 12.

[0041] A sliding rod 29 is fixedly installed at the bottom of the moving rack 31. A groove is provided on the upper side wall of the water tank 6 to cooperate with the sliding rod 29. A spring 30 is installed between the groove and the sliding rod 29. A round hole is provided on the sliding rod 29. A damping guide rod is fixedly installed in the groove. The damping guide rod is in close contact with the round hole. When the moving rack 31 moves, the sliding rod 29 moves in the groove against the elastic force of the spring 30. When the incomplete gear ring 32 and the moving rack 31 are not engaged, the elastic force of the spring 30 will cause the sliding rod 29 to automatically reset. Due to the cooperation between the damping guide rod and the round rod, the reset speed of the sliding rod 29 is not fast. Therefore, the moving rack 31 can reciprocate, thereby realizing the bidirectional reciprocating swing of the flat nozzle 12, ensuring that it can stably and effectively cool and clean the surface of the solar panel 2.

[0042] Motor 17 is electrically connected to temperature sensor. When the temperature is high, temperature sensor sends an electrical signal to make motor 17 work, thereby driving it to dissipate heat from the back of solar panel 2 and cool and clean the surface. Temperature sensor is an existing product, and its working principle will not be described in detail here.

[0043] The working principle of a solar panel fixing device for photovoltaic power generation projects in this invention includes the following steps: Snow removal from the surface of solar panel 2: When there is snow on the surface of solar panel 2, due to its tilted installation, some snow will fall onto the water collection tank 37. As the snow accumulates, the water collection tank 37 will overcome the elastic force of the compression spring 46 and move downward. At this time, the drive rack 53 drives the fixed gear 52 to rotate clockwise, thereby driving the winding wheel 49 to wind up the steel rope 50, so that the scraper 43 moves forward on the surface of solar panel 2 to scrape off the snow and avoid the problem of solar panel 2 being deformed and damaged. Heat dissipation on the back of solar panel 2: When the outside temperature reaches a certain value, the temperature sensor controls the motor 17 to run. The motor 17 runs and drives the rotating rod 23 to rotate through the cooperation of the drive rod 21 and the universal joint 22. Then, under the action of the belt drive structure 24, multiple cooling fans 4 rotate to increase air flow and remove the heat on the heat dissipation plate 3, so that the heat dissipation plate 3 can effectively dissipate heat on the back of solar panel 2. Humidification and cooling of the surface of solar panel 2: When motor 17 rotates, the cooperation between reciprocating screw 18 and moving ring 19 will cause piston plate 16 to move up and down. When piston plate 16 moves down, water in water tank 6 enters water inlet seat 13 through one-way water outlet pipe 14, and forms a water curtain in transfer frame 8 under the action of multiple flat diversion channels 15. When the cooling fan 4 rotates, the air guide frame 5 guides the airflow, causing it to enter the transfer frame 8 through multiple air outlet pipes 9. At this time, the airflow is cooled to a certain extent by passing through the water curtain, and it will carry some moisture from the air inlet pipe 10 into the flat nozzle 12. The flat nozzle 12 blows the airflow carrying moisture onto the surface of the solar panel 2. The airflow and the moisture in it are used to humidify and cool the surface of the solar panel 2. Since the outside temperature is high at this time, the moisture in the airflow will evaporate quickly when it comes into contact with the solar panel 2, absorbing the heat on the solar panel 2, thereby improving the cooling effect on the surface of the solar panel 2. Large-scale cooling of the surface of solar panel 2: When motor 17 is running, the incomplete gear ring 32 rotates continuously, and through the cooperation with the moving rack 31, it drives the rack to move back and forth on the water tank 6. Thus, through the cooperation of support rod 33 and mounting rod 34, the fixed rack 35 drives the fixed gear ring 28 to rotate back and forth, thereby causing the flat nozzle 12 to swing left and right, thereby increasing its cooling coverage. Pressurized air cooling and cleaning of the surface of solar panel 2: When motor 17 rotates and piston plate 16 moves upward, one-way pressurization pipe 25 inputs pressurized airflow into connecting pipe 11. At the same time, air outlet pipe 9 also continuously inputs airflow into air inlet pipe 10. The combination of the two increases the pressure of the airflow ejected from flat nozzle 12, thereby using high-pressure airflow to cool the surface of solar panel 2 more quickly. At the same time, high-pressure airflow can also effectively blow off dust and impurities on the surface of solar panel 2. Some stubborn stains will also soften after humidification treatment. At this time, high-pressure airflow can also clean these stubborn stains, thereby ensuring the cleanliness of the surface of solar panel 2 and improving its power generation efficiency.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A solar panel fixing device for photovoltaic power generation projects, comprising a solar panel (2) fixed on a photovoltaic bracket (1) and a temperature sensor, characterized in that, Also includes: A heat sink (3) is fixedly installed on a photovoltaic bracket (1). The heat sink (3) is in contact with the bottom of the solar panel (2). Multiple cooling fans (4) are installed on the end of the heat sink (3) away from the solar panel (2). A water tank (6) is fixedly installed on a photovoltaic bracket (1); The water storage unit is used to collect rainwater. The water storage unit includes a water collection tank (37) installed on the photovoltaic bracket (1), and a one-way water inlet pipe (38) is connected between the water collection tank (37) and the water tank (6). Snow removal section, used to remove snow from solar panel (2), the snow removal section includes two scrapers (43) slidably mounted on photovoltaic bracket (1), and a pulling component is installed between the two scrapers (43) and the water collection tank (37); A cooling and softening component is installed between the water tank (6) and the heat dissipation plate (3), and the cooling and softening component is in contact with the surface of the solar panel (2). The cooling and softening component is used to cool the surface of the solar panel (2) and soften bird droppings. The cooling and cleaning component is used to further cool the surface of the solar panel (2) and remove the softened bird droppings. The cooling and cleaning component includes two one-way pressure pipes (25) fixedly connected to the water tank (6), and a guide pipe (26) is fixedly connected between the two one-way pressure pipes (25). The guide pipe (26) cooperates with the cooling and softening component. The drive assembly includes a motor (17) fixedly mounted on a water tank (6), the motor (17) being electrically connected to a temperature sensor, and a pull-out mechanism being installed between the motor (17) and the water tank (6), a transmission mechanism being installed between the motor (17) and multiple cooling fans (4), and a swing mechanism being installed between the motor (17) and the cooling softening assembly.

2. The solar panel fixing device for photovoltaic power generation projects according to claim 1, characterized in that, Two support rings (44) that are slidably connected to the photovoltaic bracket (1) are fixedly installed on the side wall of the water collection tank (37). Two fixed plates (45) are fixedly installed at the front end of the photovoltaic bracket (1), and compression springs (46) are installed between the two fixed plates (45) and the two support rings (44). Guide grooves (39) are opened on the left and right side walls of the photovoltaic bracket (1), and support rods (40) are slidably installed in the two guide grooves (39). One-way swing frames (42) are fixedly installed on the two support rods (40) through side rods (41), and the two one-way swing frames (42) are swinging and cooperating with the two scrapers (43) respectively.

3. The solar panel fixing device for photovoltaic power generation projects according to claim 2, characterized in that, The pulling assembly includes an L-shaped frame (47) fixedly installed on the side wall of the photovoltaic bracket (1), and a winding wheel (49) is rotatably installed on the L-shaped frame (47) via a rotating shaft (48). A steel rope (50) is installed between the winding wheel (49) and the support rod (40). A torsion spring (51) is installed between the L-shaped frame (47) and the winding wheel (49). A fixed gear (52) is fixedly installed at one end of the winding wheel (49) away from the L-shaped frame (47). A drive rack (53) that meshes with the fixed gear (52) is fixedly installed at the upper end of the support ring (44).

4. The solar panel fixing device for photovoltaic power generation projects according to claim 1, characterized in that, The cooling and softening assembly includes a one-way water pumping fixed pipe (7) fixedly connected to the water tank (6), and a transfer frame (8) fixedly connected to the one-way water pumping fixed pipe (7). Multiple air outlet pipes (9) are fixedly connected between the transfer frame (8) and the guide frame (5), and multiple air inlet pipes (10) are fixedly connected to the end of the transfer frame (8) away from the air outlet pipes (9). Each air inlet pipe (10) is equipped with a flat nozzle (12) that cooperates with the upper surface of the solar panel (2) through a rotating mechanism. Two one-way water outlet pipes (14) are fixedly connected between the water tank (6) and the upper end of the transfer frame (8). A water inlet seat (13) is fixedly installed on the top of the transfer frame (8), and the bottom of the water inlet seat (13) is through-hole. Multiple flat diversion grooves (15) that cooperate with the water inlet seat (13) are provided on the upper side wall of the transfer frame (8).

5. A solar panel fixing device for photovoltaic power generation projects according to claim 4, characterized in that, The rotating mechanism includes a fixed ring (27) fixedly installed on the upper end of the air inlet pipe (10), and a connecting pipe (11) is sealed and rotatably installed on the fixed ring (27), and the connecting pipe (11) is fixedly connected to the flat nozzle (12).

6. A solar panel fixing device for photovoltaic power generation projects according to claim 1, characterized in that, The pull-out mechanism includes a reciprocating screw (18) fixedly installed on the output end of the motor (17), and a moving ring (19) is threaded on the reciprocating screw (18). A piston plate (16) is fixedly installed on the moving ring (19) through two L-shaped rods (20), and the piston plate (16) is in a sealed sliding connection with the water tank (6).

7. A solar panel fixing device for photovoltaic power generation projects according to claim 6, characterized in that, The transmission assembly includes a rotating rod (23) rotatably mounted on the bottom of the heat sink (3), and a belt drive structure (24) is installed between the rotating rod (23) and multiple cooling fans (4). A drive rod (21) is fixedly mounted on the top of the reciprocating screw (18), and a universal joint (22) is installed between the drive rod (21) and the rotating rod (23).

8. A solar panel fixing device for photovoltaic power generation projects according to claim 5, characterized in that, The guide pipe (26) consists of a straight pipe and multiple booster pipes. The straight pipe is fixedly connected between two one-way booster pipes (25). The multiple booster pipes are respectively fixedly connected between the straight pipe and the corresponding connecting pipe (11). The upper side wall of the water tank (6) is provided with a one-way air inlet (36). The one-way water pumping fixed pipe (7) and the one-way water outlet pipe (14) are both connected to the bottom of the water tank (6). The one-way booster pipe (25) is connected to the top of the water tank (6).

9. A solar panel fixing device for photovoltaic power generation projects according to claim 8, characterized in that, The swing mechanism includes a movable rack (31) slidably mounted on the water tank (6), and an incomplete gear ring (32) that cooperates with the movable rack (31) is fixedly installed at the output end of the motor (17). An installation rod (34) is fixedly installed on the movable rack (31) through two support rods (33). A fixed gear ring (28) is fixedly installed on each of the connecting pipes (11). Multiple fixed racks (35) that mesh with the corresponding fixed gear rings (28) are fixedly installed on the installation rods (34).

10. A solar panel fixing device for photovoltaic power generation projects according to claim 9, characterized in that, The bottom of the movable rack (31) is fixedly installed with a slide rod (29). The upper side wall of the water tank (6) is provided with a sliding groove that cooperates with the slide rod (29). A spring (30) is installed between the sliding groove and the slide rod (29). A damping guide structure is installed between the slide rod (29) and the sliding groove.

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