Solar photovoltaic battery pack with high conversion efficiency
By introducing an automatic cleaning device into the solar photovoltaic cell module, using a gear and rack transmission system and a cleaning belt, the automatic cleaning of the glass cover is achieved, solving the problem of reduced light transmittance caused by dust adhesion, and improving the light energy conversion efficiency and module life.
Patent Information
- Application Number
- CN202511382078.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2025-11-18
AI Technical Summary
The glass cover of existing solar photovoltaic cell modules is prone to dust accumulation, which reduces light transmittance and affects the light energy absorption and conversion efficiency.
A cleaning device was designed, comprising a mounting frame, a water tank, an air outlet duct, a gear and rack transmission system, and a cleaning belt. It automatically removes dust from the glass cover by blowing cold air and spraying water, thus maintaining light transmittance.
It effectively removes dust from the glass cover, improves the light energy absorption and conversion efficiency, and extends the service life of solar photovoltaic cell modules.
Smart Images

Figure CN120979337A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of solar photovoltaic cell technology, specifically a high-conversion-efficiency solar photovoltaic cell. Background Technology
[0002] Because single-cell solar cells have low output voltage, and unencapsulated cells are prone to electrode detachment due to environmental factors, a certain number of single cells must be sealed in series and parallel to form a solar cell module. This prevents corrosion of the cell electrodes and interconnects. Encapsulation also prevents cell breakage and facilitates outdoor installation. The quality of the encapsulation determines the lifespan and reliability of the solar cell module. A solar cell module consists of high-efficiency crystalline silicon solar cells, ultra-white textured tempered glass, EVA, a transparent TPT backsheet, and an aluminum alloy frame. It features a long lifespan and strong mechanical resistance to external pressure. This application addresses the shortcomings of existing technologies. In existing technologies, when solar photovoltaic (PV) modules are used outdoors, dust easily adheres to the glass cover, reducing the light transmittance of the glass cover and consequently affecting the light energy absorption and conversion of the solar PV module, thus reducing the conversion efficiency. Summary of the Invention
[0003] The purpose of this invention is to provide a high-conversion-efficiency solar photovoltaic cell module to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a high-conversion-efficiency solar photovoltaic cell module, comprising a mounting frame, a cell assembly fixedly connected to the inner wall of the mounting frame, a glass cover plate fixedly connected to the top of the cell assembly and the mounting frame, a water tank above the mounting frame, a support plate fixedly connected to one side of the water tank, a plurality of equidistantly distributed air outlet pipes fixedly connected to the support plate, a connecting pipe fixedly connected to the top of the air outlet pipes, conveying pipes fixedly connected to both sides of the connecting pipes, and a corrugated expansion pipe fixedly connected to the end of the conveying pipe away from the connecting pipe. The other end of the constriction tube is fixedly connected to an air supply pipe, and a hollow pipe is fixedly connected between the two air supply pipes. Multiple equally spaced air inlet pipes are fixedly connected to the side of the hollow pipe near the mounting frame, and the air inlet pipes are connected to the inside of the mounting frame. The bottom of the water tank is rotatably connected to a rotating shaft. There are four rotating shafts, which are symmetrical in pairs. A third gear is fixedly sleeved on the outer wall of the rotating shaft. A conveyor belt is connected between the two third gears. A third rack is fixedly connected to the inner wall of the conveyor belt, and the third rack meshes with the third gear. A cleaning belt is fixedly connected to the side of the conveyor belt away from the water tank.
[0005] Preferably, the water tank is fixedly connected to symmetrically distributed movable seats on both sides, and the movable seats are slidably connected to the mounting frame. The inner wall of the movable seat is threaded with a screw rod, and the screw rod is rotatably connected to the mounting frame.
[0006] Preferably, the top of the mounting frame is provided with symmetrically distributed grooves, and the inner walls of the two grooves that are far apart from each other are fixedly connected with first racks, and the two first racks that are close to each other are meshed with second gears, and the second gears are fixedly connected to the rotating shaft.
[0007] Preferably, a motor is fixedly connected to one side of the mounting frame, and the output shaft of the motor is fixedly connected to a screw. A chain wheel is fixedly connected to the outer wall of one end of the screw that extends out of the mounting frame, and the two chain wheels are connected by a chain.
[0008] Preferably, the top of the mounting frame is provided with symmetrically distributed cleaning grooves, and the cleaning grooves are located on the side of the two grooves that are far apart from each other. The inner wall of the cleaning groove is rotatably connected with a plurality of equidistantly distributed cleaning shafts, and the outer wall of the cleaning shaft is fixedly connected with a plurality of equidistantly distributed scrapers.
[0009] Preferably, a first gear is fixedly connected to the outer wall of one end of the cleaning shaft extending out of the mounting frame, a second rack is meshed on one side of the first gear, and the second rack is fixedly connected to the conveying pipe.
[0010] Preferably, the mounting frame has symmetrically distributed cleaning grooves on both sides, the cleaning grooves are connected to the grooves, and the cleaning grooves are connected to the cleaning troughs.
[0011] Preferably, the bottom of the water tank is fixedly connected to a plurality of equally spaced rotating shafts, the rear side of the water tank is fixedly connected to a water inlet pipe, the top of the water tank is fixedly connected to a fan, the air outlet of the fan is fixedly connected to a first duct, the other end of the first duct is fixedly connected to a refrigeration unit fixedly connected to the water tank, and a second duct is fixedly connected to the refrigeration unit, and the second duct is fixedly connected to a connecting pipe.
[0012] The beneficial effects of this invention are as follows: 1. In this invention, during cleaning, the motor is started, and the output shaft of the motor rotates, driving the screw to rotate. This, in turn, causes the two screws to rotate via two chain wheels and a chain. The screws drive the movable seat to move, which in turn causes the water tank to move. The water tank's movement causes the air outlet pipe and the rotating shaft to move. The air outlet pipe delivers cold air from the second duct through a connecting pipe, which then blows and cools the surface of the glass cover plate, while simultaneously cleaning the dust on the glass cover plate surface. The rotating shaft rotates through the cooperation of the second gear and the first rack, which in turn drives the third gear to rotate. This, in turn, causes the conveyor belt to move, allowing the cleaning belt to clean the surface of the glass cover plate. This facilitates cleaning and prevents dust and other dirt from reducing the light transmittance of the glass cover plate, thereby affecting the conversion rate of the battery pack. 2. In this invention, when the water tank moves, it also drives the conveying pipe to move, which in turn drives the second rack to move. The movement of the second rack drives the first gear to rotate, which causes the cleaning shaft to rotate, which in turn drives the scraper. When the cleaning belt moves to contact the scraper, the scraper cleans the cleaning belt. 3. In this invention, when the water tank moves, water is sprayed onto the mounting frame through a water spray pipe. The water sprayed onto the glass cover plate cleans and cools the surface of the glass cover plate. At the same time, the water cleans the first rack and the rotating shaft to prevent dust from adhering to the second gear and the first rack and affecting its use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the water inlet pipe installation of the present invention; Figure 3 This is a schematic diagram of the internal structure of the mounting frame of the present invention; Figure 4 This is a schematic diagram of the installation of the first rack of the present invention; Figure 5 This is a schematic diagram of the scraper installation of the present invention; Figure 6 This is a bottom view of the water tank of the present invention; Figure 7 This is a schematic diagram of the air inlet pipe installation of the present invention; Figure 8 For the present invention Figure 1 Enlarged view of point A.
[0014] In the diagram: 1. Mounting frame; 2. Conveying pipe; 3. Corrugated telescopic pipe; 4. Screw; 5. Movable seat; 6. Water tank; 7. Fan; 8. First conduit; 9. Refrigeration unit; 10. Second conduit; 11. Connecting pipe; 12. Air outlet pipe; 13. Support plate; 14. Groove; 15. First rack; 16. Motor; 17. Cleaning trough; 18. Cleaning trough; 19. Air conveying pipe; 20. Hollow pipe; 21. Second rack; 22. First gear; 23. Cleaning shaft; 24. Glass cover plate; 25. Chain wheel; 26. Water inlet pipe; 27. Air inlet pipe; 28. Battery assembly; 29. Scraper; 30. Second gear; 31. Third gear; 32. Rotating shaft; 33. Water spray pipe; 34. Conveying connecting belt; 35. Cleaning belt; 36. Third rack. Detailed Implementation
[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0016] like Figures 1 to 8 As shown, this embodiment of the invention provides a high-conversion-efficiency solar photovoltaic cell module, including a mounting frame 1. A cell module 28 is fixedly connected to the inner wall of the mounting frame 1. A glass cover plate 24 fixedly connected to the top of the cell module 28 is provided and fixedly connected to the mounting frame 1. A water tank 6 is provided above the mounting frame 1. A support plate 13 is fixedly connected to one side of the water tank 6. Multiple equidistantly distributed air outlet pipes 12 are fixedly connected to the support plate 13. A connecting pipe 11 is fixedly connected to the top of the air outlet pipe 12. A conveying pipe 2 is fixedly connected to both sides of the connecting pipe 11. A corrugated telescopic pipe 3 is fixedly connected to the end of the conveying pipe 2 away from the connecting pipe 11. An air supply pipe 19 is fixedly connected to the other end of the corrugated telescopic pipe 3. A hollow pipe 20 is fixedly connected between two air supply pipes 19. Multiple equidistantly distributed air inlet pipes 27 are fixedly connected to the side of the hollow pipe 20 near the mounting frame 1, and the air inlet pipes 27 are connected to the interior of the mounting frame 1. The air outlet pipes 12 blow away dust from the surface of the glass cover plate 24, thereby cleaning it. The air inlet duct 27 delivers cold air to the mounting frame 1 for heat dissipation and cooling. The bottom of the water tank 6 is rotatably connected to a rotating shaft 32. There are four rotating shafts 32, which are symmetrical in pairs. A third gear 31 is fixedly sleeved on the outer wall of the rotating shaft 32. A conveyor belt 34 is connected between the two third gears 31. A third rack 36 is fixedly connected to the inner wall of the conveyor belt 34, and the third rack 36 meshes with the third gear 31. A cleaning belt 35 is fixedly connected to the side of the conveyor belt 34 away from the water tank 6. The third gear 31 and the third rack 36 work together to drive the conveyor belt 34 to move, thereby enabling the cleaning belt 35 to clean the surface of the glass cover 24.
[0017] The water tank 6 is fixedly connected to two symmetrically distributed movable seats 5, and the movable seats 5 are slidably connected to the mounting frame 1. The inner wall of the movable seat 5 is threaded with a screw 4, and the screw 4 is rotatably connected to the mounting frame 1. Through the cooperation of the screw 4 and the movable seat 5, the screw 4 drives the water tank 6 to move when it rotates.
[0018] The top of the mounting frame 1 has symmetrically distributed grooves 14. The inner walls of the two grooves 14 that are far apart from each other are fixedly connected to the first rack 15. The two first racks 15 that are close to each other are meshed with the second gear 30. The second gear 30 is fixedly connected to the rotating shaft 32. The second gear 30 and the first rack 15 enable the water tank 6 to drive the rotating shaft 32 to rotate when it is in motion, thereby making the cleaning belt 35 move.
[0019] Among them, a motor 16 is fixedly connected to one side of the mounting frame 1, and the output shaft of the motor 16 is fixedly connected to the screw 4. A chain wheel 25 is fixedly connected to the outer wall of the end of the screw 4 that extends out of the mounting frame 1. The two chain wheels 25 are connected by a chain. The motor 16 drives the screw 4, and the two chain wheels 25 and the chain make the two screws 4 rotate synchronously.
[0020] The top of the mounting frame 1 is provided with symmetrically distributed cleaning grooves 18, and the cleaning grooves 18 are located on the side of the two grooves 14 that are far apart from each other. The inner wall of the cleaning grooves 18 is rotatably connected with multiple equidistant cleaning shafts 23, and the outer wall of the cleaning shafts 23 is fixedly connected with multiple equidistant scrapers 29. The cleaning belt 35 is scraped and cleaned by rotating the scrapers 29.
[0021] The cleaning shaft 23 extends out of the mounting frame 1 and is fixedly connected to the outer wall of the first gear 22. The first gear 22 is meshed with the second rack 21 on one side, and the second rack 21 is fixedly connected to the conveying pipe 2. The second rack 21 can be moved through the conveying pipe 2, and then the cleaning shaft 23 can be rotated through the first gear 22 and the second rack 21.
[0022] The mounting frame 1 has symmetrically distributed cleaning troughs 17 on both sides. The cleaning troughs 17 are connected to the grooves 14 and the cleaning troughs 18. The cleaning troughs 17 collect and discharge the dirt scraped out in the cleaning troughs 18.
[0023] The water tank 6 has multiple equidistantly distributed rotating shafts 32 fixedly connected to its bottom. A water inlet pipe 26 is fixedly connected to the rear of the water tank 6, and a fan 7 is fixedly connected to its top. A first duct 8 is fixedly connected to the air outlet of the fan 7. A chiller 9, which is fixedly connected to the water tank 6, is fixedly connected to the chiller 9. A second duct 10 is fixedly connected to the chiller 9 and is also fixedly connected to a connecting pipe 11. Water is sprayed onto the surface of the glass cover 24 from the water tank 6 for cleaning and cooling. Cold air is delivered into the connecting pipe 11 via the fan 7 and the chiller 9, which in turn allows the air inlet pipe 27 to deliver cold water into the mounting frame 1 for cooling and heat dissipation.
[0024] Working principle and usage process: In this application, during cleaning, the motor 16 is started, and the output shaft of the motor 16 rotates, driving the screw 4 to rotate. This, in turn, causes the two screws 4 to rotate via two chain wheels 25 and a chain. The screws 4 drive the movable seat 5 to move, which in turn causes the water tank 6 to move. The movement of the water tank 6 causes the air outlet duct 12 and the rotating shaft 32 to move. The air outlet duct 12 delivers cold air from the second conduit 10 through the connecting pipe 11, which then blows and cools the surface of the glass cover 24. At the same time, it cleans the dust on the surface of the glass cover 24. The rotating shaft 32 rotates through the cooperation of the second gear 30 and the first rack 15. The rotation of the rotating shaft 32 drives the third gear 31 to rotate, which in turn drives the conveyor belt 34 to move via the third rack 36. This allows the cleaning belt 35 to clean the surface of the glass cover 24, making cleaning easier and preventing the presence of dust and other dirt on the surface of the glass cover 24 from reducing its light transmittance and thus affecting the conversion rate of the battery pack. In this application, when the water tank 6 moves, it also drives the conveying pipe 2 to move, which in turn drives the second rack 21 to move. The movement of the second rack 21 drives the first gear 22 to rotate, which causes the cleaning shaft 23 to rotate, which in turn drives the scraper 29. When the cleaning belt 35 moves to contact the scraper 29, the scraper 29 cleans the cleaning belt 35. In this application, when the water tank 6 is moved, water is also sprayed onto the mounting frame 1 through the water spray pipe 33. The water sprayed onto the glass cover plate 24 cleans and cools the surface of the glass cover plate 24. At the same time, the water cleans the first rack 15 and the rotating shaft 32 to prevent dust from adhering to the second gear 30 and the first rack 15 and affecting its use.
[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-conversion-efficiency solar photovoltaic cell module, comprising a mounting frame (1), characterized in that: A battery assembly (28) is fixedly connected to the inner wall of the mounting frame (1). A glass cover plate (24) fixedly connected to the mounting frame (1) is provided on the top of the battery assembly (28). A water tank (6) is provided above the mounting frame (1). A support plate (13) is fixedly connected to one side of the water tank (6). Multiple equidistant air outlet pipes (12) are fixedly connected to the support plate (13). A connecting pipe (11) is fixedly connected to the top of the air outlet pipe (12). A conveying pipe (2) is fixedly connected to both sides of the connecting pipe (11). A corrugated telescopic pipe (3) is fixedly connected to one end of the conveying pipe (2) away from the connecting pipe (11). An air supply pipe (19) is fixedly connected to the other end of the corrugated telescopic pipe (3). Two of the air supply pipes (19) A hollow tube (20) is fixedly connected between the two sides. A plurality of equally spaced air inlet pipes (27) are fixedly connected to the side of the hollow tube (20) near the mounting frame (1), and the air inlet pipes (27) are connected to the inside of the mounting frame (1). A rotating shaft (32) is rotatably connected to the bottom of the water tank (6). There are four rotating shafts (32), which are symmetrical in pairs. A third gear (31) is fixedly sleeved on the outer wall of the rotating shaft (32). A conveyor belt (34) is connected between the two third gears (31). A third rack (36) is fixedly connected to the inner wall of the conveyor belt (34), and the third rack (36) meshes with the third gear (31). A cleaning belt (35) is fixedly connected to the side of the conveyor belt (34) away from the water tank (6).
2. The high-conversion-efficiency solar photovoltaic cell pack according to claim 1, characterized in that: The water tank (6) is fixedly connected to symmetrically distributed movable seats (5) on both sides, and the movable seats (5) are slidably connected to the mounting frame (1). The inner wall of the movable seats (5) is threaded with a screw (4), and the screw (4) is rotatably connected to the mounting frame (1).
3. The high-conversion-efficiency solar photovoltaic cell pack according to claim 1, characterized in that: The top of the mounting frame (1) is provided with symmetrically distributed grooves (14). The inner walls of the two grooves (14) that are far apart from each other are fixedly connected with first racks (15). The two first racks (15) that are close to each other are meshed with second gears (30), and the second gears (30) are fixedly connected to the rotating shaft (32).
4. A high-conversion-efficiency solar photovoltaic cell pack according to claim 2, characterized in that: A motor (16) is fixedly connected to one side of the mounting frame (1), and the output shaft of the motor (16) is fixedly connected to the screw (4). A chain wheel (25) is fixedly connected to the outer wall of one end of the screw (4) extending out of the mounting frame (1), and the two chain wheels (25) are connected by a chain.
5. A high-conversion-efficiency solar photovoltaic cell module according to claim 1, characterized in that: The top of the mounting frame (1) is provided with symmetrically distributed cleaning grooves (18), and the cleaning grooves (18) are located on the side away from each other of the two grooves (14). The inner wall of the cleaning grooves (18) is rotatably connected with a plurality of equally distributed cleaning shafts (23), and the outer wall of the cleaning shafts (23) is fixedly connected with a plurality of equally distributed scrapers (29).
6. A high-conversion-efficiency solar photovoltaic cell pack according to claim 5, characterized in that: The cleaning shaft (23) extends out of the mounting frame (1) and is fixedly connected to the outer wall of the first gear (22). The first gear (22) is engaged with the second rack (21) on one side, and the second rack (21) is fixedly connected to the conveying pipe (2).
7. A high-conversion-efficiency solar photovoltaic cell module according to claim 1, characterized in that: The mounting frame (1) has symmetrically distributed cleaning grooves (17) on both sides. The cleaning grooves (17) are connected to the grooves (14) and the cleaning grooves (18).
8. A high-conversion-efficiency solar photovoltaic cell pack according to claim 1, characterized in that: The bottom of the water tank (6) is fixedly connected to a plurality of equally spaced rotating shafts (32), the rear side of the water tank (6) is fixedly connected to a water inlet pipe (26), the top of the water tank (6) is fixedly connected to a fan (7), the air outlet of the fan (7) is fixedly connected to a first conduit (8), the other end of the first conduit (8) is fixedly connected to a refrigeration unit (9) fixedly connected to the water tank (6), the refrigeration unit (9) is fixedly connected to a second conduit (10), and the second conduit (10) is fixedly connected to a connecting pipe (11).