A multi-point driving flat single-axis photovoltaic tracking support
By designing a multi-point drive single-axis photovoltaic tracking bracket, and utilizing the expansion of the light-transmitting film and the dew spraying function, the problem of sand and dust accumulation was solved, realizing automatic cleaning of sand and dust and self-cleaning of photovoltaic modules, reducing labor costs and improving power generation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CEEC ANHUI ELECTRICAL POWER CONSTR NO 1 CO
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-09
AI Technical Summary
When existing photovoltaic (PV) mounting systems are used in high-humidity desert areas, sand and dust easily accumulate on the surface of the PV modules, affecting power generation and increasing the cost of manual cleaning.
Design a multi-point driven single-axis photovoltaic tracking bracket, including a bracket mechanism, an installation mechanism, and a collection component. Utilize the expansion of the light-transmitting membrane and the dew spraying function to achieve self-cleaning and cooling effects for sand and dust.
By automatically expanding the translucent membrane and spraying dew, the automatic shedding of sand and dust and the self-cleaning of photovoltaic modules are achieved, reducing labor costs and improving the power generation efficiency of photovoltaic modules.
Smart Images
Figure CN120880299B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of photovoltaic support technology, specifically to a multi-point driveable single-axis photovoltaic tracking support. Background Technology
[0002] Photovoltaic brackets are a key component of solar photovoltaic systems. Their main function is to fix photovoltaic modules and ensure that the modules receive solar radiation at the optimal angle, while resisting the effects of external environments (such as wind, snow, corrosion, etc.).
[0003] Chinese Patent Publication No. CN210273939U discloses a tracking bracket for fixing a photovoltaic system. By hinged a first pillar and a second pillar at each end of the photovoltaic bracket, the reliability of the bracket's support and fixation is ensured. The second pillar is rotatably connected to a stud via a threaded connection. A drive device controls the stud's forward and reverse rotation, causing the stud to move the second pillar up and down to adjust the photovoltaic bracket's tilt angle. Since the lower end of a sleeve is rotatably fitted inside the sleeve, and the sleeve contains a planar bearing to facilitate stud rotation, smooth stud rotation is ensured. The bottom of the sleeve is hinged to the ground; therefore, when the overall length of the stud and the second pillar changes, the sleeve can swing accordingly to adapt to the photovoltaic bracket's angle adjustment, ensuring smooth angle adjustment.
[0004] However, the above-mentioned existing technology has the following drawbacks: when the photovoltaic support is used in a high-humidity desert area, due to the high dust content in the desert area, and the photovoltaic modules are exposed when installed on the photovoltaic support, a large amount of dust easily accumulates on the surface of the photovoltaic modules, thereby affecting the power generation of the photovoltaic modules. Therefore, it is necessary for staff to clean it regularly, which significantly increases labor costs. Summary of the Invention
[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a multi-point driven single-axis photovoltaic tracking bracket.
[0006] The technical solution of the present invention: a multi-point driveable single-axis photovoltaic tracking bracket, comprising:
[0007] A support structure, located on the ground, is used to support and drive the rotation of the photovoltaic panels;
[0008] The installation mechanism includes a housing a, a cover, a light-transmitting film, a photoelectric sensor, a piston plate, a housing b, a spray assembly, and a collection assembly. Housing a has multiple units arranged side-by-side at equal intervals on a support structure. The cover is hinged to housing a and has an opening. The light-transmitting film is located inside the opening. The photoelectric sensor is located on the cover for locating the sun's position. A mounting plate is connected inside housing a for mounting photovoltaic panels, and the mounting plate has a temperature sensor. Multiple vents a are located on the mounting plate. The piston plate slides inside housing a. Multiple vents b are located at the bottom of housing a. Housing b is connected to the bottom of housing a. The collection assembly is located on housing b for collecting dew. The spray assembly is located on housing a for spraying dew to cool the photovoltaic panels.
[0009] Preferably, the support mechanism includes plate a, main shaft, secondary shaft, motor, gear a, and connecting parts; two plates a are provided and arranged opposite each other; both the main shaft and the secondary shaft are connected to plate a; multiple connecting parts are provided and are rotatably connected to the main shaft through bearings; the connecting parts are connected to the housing a; gear a is connected to the connecting parts and is coaxially arranged with the main shaft; motor a is provided on plate a and is connected to gear a for transmission.
[0010] Preferably, a plurality of gears b that mesh with gear a are connected to the countershaft; and a gear c that meshes with gear b is connected to the output end of the motor.
[0011] Preferably, a hanging rope is attached to the lid; one end of the hanging rope is attached to a pendulum ball for striking the light-transmitting film.
[0012] Preferably, the bottom end of the box body b has multiple holes a; the collecting assembly includes a telescopic component a, a sealing plate, protrusions and cooling blocks; multiple protrusions are provided and connected to the bottom end of the box body b; the protrusions are located between adjacent holes a; multiple cooling blocks are provided and evenly distributed inside the box body b; the telescopic component a is provided on the inner side of the box body b; the telescopic end of the telescopic component a passes through the box body b and is connected to the sealing plate; multiple holes b adapted to the protrusions are provided on the sealing plate.
[0013] Preferably, the four corners of the sealing plate are connected to pipes b; a fixed cone is slidably connected inside pipe b; a telescopic component b is provided inside pipe b; the telescopic component b is connected to the fixed cone.
[0014] Preferably, the spray assembly includes a pipe a, a submersible pump, a mounting block, and a spray head; the submersible pump is located inside the housing b; one end of the pipe a is connected to the submersible pump; the other end of the pipe a is connected to the spray head; the mounting block is located on the housing a and is connected to the spray head.
[0015] Preferably, the side of the piston plate facing the box body b is provided with a sponge layer to slow down water evaporation.
[0016] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects:
[0017] With an installation mechanism, at night, box a drives box b to flip to an inverted state. At this time, the piston plate inside box a moves down and squeezes the air inside box a, causing the light-transmitting film to expand. The expanded light-transmitting film has a significantly increased surface area, which can significantly reduce the adhesion of sand and dust on the surface of the light-transmitting film, making it easier for sand and dust to fall off automatically. This achieves a self-cleaning function for sand and dust, eliminating the need for staff to regularly clean the photovoltaic panels and reducing labor costs.
[0018] The system is equipped with a collection component and a spray component. The collection component can collect dew at night, and the spray component can spray it out during the day, which can cool down the photovoltaic panel and also clean up the sand and dust on the light-transmitting film. Attached Figure Description
[0019] Figure 1 This is a perspective view of one embodiment of the present invention;
[0020] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;
[0021] Figure 3 This is a schematic diagram of the structure of box body a when the lid is opened in one embodiment of the present invention;
[0022] Figure 4 This is a schematic diagram of the structure of box a and box b in a separated state in one embodiment of the present invention;
[0023] Figure 5 This is a schematic cross-sectional view of box a and box b in an inverted state in one embodiment of the present invention.
[0024] Figure 6 This is a schematic diagram of the connection structure between the telescopic component b and the fixed cone in the cross-sectional state of the tube b in one embodiment of the present invention;
[0025] Figure 7 This is a schematic diagram of the support mechanism in one embodiment of the present invention;
[0026] Figure 8 This is a schematic diagram of the structure of a spray assembly in one embodiment of the present invention.
[0027] Reference numerals: 1. Plate a; 2. Gear a; 3. Gear b; 4. Countershaft; 5. Box b; 6. Box a; 7. Box cover; 8. Pendulum ball; 9. Translucent membrane; 10. Tube a; 11. Mounting plate; 1101. Air hole a; 12. Photoelectric sensor; 13. Fixed cone; 1301. Hole a; 14. Telescopic component b; 15. Mounting block; 16. Cooling block; 17. Connector; 18. Telescopic component a; 19. Piston plate; 20. Sealing plate; 2001. Hole b; 21. Protrusion; 22. Gear c; 23. Main shaft; 24. Motor; 25. Submersible pump; 26. Spray head; 27. Tube b; 28. Sponge layer; 29. Temperature sensor. Detailed Implementation
[0028] Example 1, as Figure 1-5 As shown, the present invention proposes a multi-point driven single-axis photovoltaic tracking bracket, which includes a bracket mechanism and an installation mechanism;
[0029] The support structure is located on the ground and is used to support and drive the rotation of the photovoltaic panels;
[0030] The mounting mechanism includes a housing a6, a cover 7, a light-transmitting film 9, a photoelectric sensor 12, a piston plate 19, a housing b5, a spray assembly, and a collection assembly. The housing a6 has multiple components arranged side-by-side and equidistantly on the support mechanism. The cover 7 is hinged to the housing a6 and has an opening. The light-transmitting film 9 is located inside the opening and is a high-transmittance film (e.g., ETFE film with a transmittance greater than 90% and an elastic modulus (approximately 800-1000 MPa) much higher than rubber). The photoelectric sensor 12 is located on the cover 7 for locating the sun's position. A mounting plate 11 is connected inside the housing a6 for mounting photovoltaic panels. A temperature sensor 29 is located on the mounting plate 11 for monitoring the internal temperature of the housing a6. Multiple air holes a1101 are located on the mounting plate 11, allowing the piston plate 19 to pass through the mounting plate 11 when compressing the air inside the housing a6, thus causing the light-transmitting film 9 to expand. The cover 7... A hanging rope is attached to the top; one end of the hanging rope is connected to a pendulum 8, which is used to strike the light-transmitting membrane 9. The pendulum 8 swings freely under the action of wind and strikes the expanded light-transmitting membrane 9, which facilitates the removal of sand and dust on it; the piston plate 19 is slidably installed inside the box a6. The piston plate 19 has a counterweight inside. When the box a6 is flipped into an inverted state, the piston plate 19 moves towards the light-transmitting membrane 9 under its own weight and squeezes the air inside the box a6, causing the light-transmitting membrane 9 to expand; multiple air holes b are opened at the bottom of the box a6. The air holes b enable the connection between the box a6 and the box b5, ensuring that the piston plate 19 can slide normally inside the box a6; the box b5 is connected to the bottom of the box a6; the collection component is installed on the box b5 to collect dew. The side of the piston plate 19 facing the box b5 has a sponge layer 28 to slow down the evaporation of water; the spray component is installed on the box a6 to spray dew to dissipate heat and cool the photovoltaic panel.
[0031] In this embodiment, the support mechanism can support and drive the installation mechanism and photovoltaic panel to rotate. The photoelectric sensor 12 can sense the intensity of sunlight. When there is a deviation in the light intensity, it feeds back to the control system. The control system will calculate the direction of the deviation and control the support mechanism to drive the installation mechanism and photovoltaic panel to rotate, thereby realizing the function of tracking the sun, ensuring that the photovoltaic panel is always aligned with the sun's position, and ensuring the maximum light efficiency of the photovoltaic panel.
[0032] At night, when the photovoltaic panels are no longer in operation, the support mechanism drives the installation mechanism and the photovoltaic panels to rotate to an inverted state, so that the photovoltaic panels are facing downwards. At this time, the piston plate 19 inside the box a6 moves towards the light-transmitting membrane 9 under its own gravity, and squeezes the air inside the box a6. The air passes through the air hole a1101 and squeezes the light-transmitting membrane 9, causing the light-transmitting membrane 9 to expand. The expanded light-transmitting membrane 9 has a significantly increased surface area, which can significantly reduce the adhesion of sand and dust to the surface of the light-transmitting membrane 9, making it easier for the sand and dust to fall off automatically. At the same time, after the box a6 is inverted, the pendulum ball 8 is in a free-suspension state. Due to the strong wind in the desert, the pendulum ball 8 swings freely under the action of the wind and hits the expanded elastic membrane, causing it to shake, accelerating the shedding of sand and dust, realizing the self-cleaning function of sand and dust. In addition, the inverted box a6 can prevent sand and dust from accumulating on the surface of the light-transmitting membrane 9, eliminating the need for staff to regularly clean the photovoltaic panels and reducing labor costs.
[0033] After boxes a6 and b5 are inverted, due to the large temperature difference between day and night in the desert and the high humidity in the desert, the collecting components can collect and store the dew at night, which can be used to spray and cool the photovoltaic panels during the day and to clean the light-transmitting film 9.
[0034] It should be noted that high-humidity deserts also have winters, such as inland high-altitude deserts (the desert areas of the Qinghai-Tibet Plateau). Winter temperatures are significantly low, and ice or frost is easily formed under high humidity. In this environment, the presence of the light-transmitting film 9 can prevent direct ice formation on the surface of the photovoltaic panel. At the same time, the expansion of the light-transmitting film 9 at night can break the ice on its surface, thus playing a role in automatic de-icing.
[0035] Example 2, as Figure 7 As shown, this invention proposes a multi-point driven single-axis photovoltaic tracking bracket. Compared to Embodiment 1, this embodiment further details the structure of the bracket mechanism. The bracket mechanism includes a plate a1, a main shaft 23, a secondary shaft 4, a motor 24, a gear a2, and connecting members 17. Two plates a1 are provided and arranged opposite each other. The main shaft 23 and the secondary shaft 4 are both connected to the plate a1. Multiple connecting members 17 are provided and rotatably connected to the main shaft 23 via bearings. The connecting members 17 are connected to the housing a6. The connecting members 17 include, but are not limited to, a V-shaped plate structure, with both ends connected to the housing a6, and bearings connected at its bottom end (see reference). Figure 4 Gear a2 is connected to connector 17 and is coaxially arranged with main shaft 23; motor 24a is mounted on plate a1 and is connected to gear a2 for transmission; multiple gears b3 that mesh with gear a2 are connected to the secondary shaft 4; gear c22 that meshes with gear b3 is connected to the output end of motor 24.
[0036] In this embodiment, when the motor 24 is controlled by the control system, the motor 24 drives the gear c22 to rotate, the gear c22 drives the gear b3 meshing with it to rotate, the gear b3 drives the gear a2 meshing with it to rotate, the gear a2 drives the connecting piece 17 to rotate, the connecting piece 17 drives the box a6 to rotate, and thus drives the photovoltaic panel to rotate, thereby realizing the function of adjusting the angle of the photovoltaic panel, ensuring that the photovoltaic panel can always face the sun, and ensuring the light absorption rate of the photovoltaic panel.
[0037] Example 3, as Figure 4-6 As shown, this invention proposes a multi-point driven single-axis photovoltaic tracking bracket. Compared to Embodiment 2, this embodiment further details the structure of the collection component. Multiple holes a1301 are provided at the bottom of the housing b5. The collection component includes a telescopic component a18, a sealing plate 20, protrusions 21, and cooling blocks 16. Multiple protrusions 21 are provided and connected to the bottom of the housing b5. The protrusions 21 are located between adjacent holes a1301. Multiple cooling blocks 16 are provided and evenly distributed inside the housing b5. Both the protrusions 21 and the cooling blocks 16 are made of materials with poor thermal conductivity, such as rubber (poor thermal conductivity allows for rapid surface temperature reduction through radiation cooling at night, reaching the dew point (the temperature at which water vapor condenses), thus forming dew). Furthermore, the surfaces of the protrusions 21 and the cooling blocks 16 have a porous structure, increasing the surface area for water vapor condensation. The telescopic component a18 is located inside the housing b5 and includes, but is not limited to, a cylinder. The device includes a telescopic component a18 with an outer shell to prevent dew from contacting it. The telescopic end of the telescopic component a18 passes through the box body b5 and connects to the sealing plate 20. The sealing plate 20 has a rubber layer on its surface to increase the seal between it and the hole a1301, preventing dew collected inside the box body b5 from leaking through the hole a1301. The sealing plate 20 has multiple holes b2001 that fit the protrusion 21. Pipes b27 are connected to the four corners of the sealing plate 20. A fixed cone 13 is slidably connected inside the pipe b27. A telescopic component b14 is located inside the pipe b27. The telescopic component b14 is connected to the fixed cone 13. The telescopic component b14 includes, but is not limited to, a cylinder. The telescopic component b14 is connected to the fixed cone 13.
[0038] In this embodiment, at night, when the boxes a6 and b5 are inverted, the telescopic component a18 is controlled to work, causing the sealing plate 20 to move away from the box b5. At this time, outside air can enter the box b5 through the hole a1301. Under the action of the cooling block 16 and the protrusion 21, water vapor in the air forms dew on its surface. The dew formed on the surface of the protrusion 21 will enter the box b5 through the hole a1301 for collection. The dew formed on the surface of the cooling block 16 will be directly stored inside the box b5. After dawn, the telescopic component a18 will control the sealing plate 20 to reset and seal the hole a1301 to prevent the collected dew from leaking.
[0039] It should be noted that a wind speed sensor is installed on box a6 to detect wind speed. When the photovoltaic panel is in use during the day, if the wind is strong, the wind speed sensor sends feedback to the control system. The control system then controls motor 24a to keep box a6 horizontal, reducing wind resistance. Simultaneously, it controls telescopic component b14 to move the fixed cone 13 downwards, allowing it to penetrate the desert and enhance the stability of the entire device, reducing the impact of strong winds. At night, because boxes a6 and b5 are inverted, their positions decrease, causing the overall center of gravity to shift downwards (due to the V-shaped connection 17, see reference [link]). Figure 5 Meanwhile, boxes a6 and b5 are horizontal, so they can remain stable even in strong winds.
[0040] Example 4, as Figure 8 As shown, this invention proposes a multi-point driven single-axis photovoltaic tracking bracket. Compared with Embodiment 3, this embodiment also details the structure of the spray assembly. The spray assembly includes a pipe a10, a submersible pump 25, a mounting block 15, and spray heads 26. The submersible pump 25 is located inside the housing b5. One end of the pipe a10 is connected to the submersible pump 25. The other end of the pipe a10 is connected to the spray head 26 (the pipe a10 is a multi-port pipe, and multiple spray heads 26 are connected to the other end of the pipe a10, which can increase the spray range). The mounting block 15 is located on the housing a6 and connected to the spray head 26.
[0041] In this embodiment, when the temperature sensor 29 inside the box a6 detects that the temperature value exceeds the threshold, the temperature sensor 29 feeds back to the control system, and the control system will activate the submersible pump 25. The submersible pump 25 will transport the dew collected inside the box b5 through the pipe a10 to the spray head 26, and then spray it out from the spray head 26. The sprayed water will sprinkle on the light-transmitting membrane 9, which can not only clean the sand and dust accumulated on the surface of the light-transmitting membrane 9, but also take away heat when the water evaporates, which can cool the photovoltaic panel inside the box a6.
[0042] It is worth noting that the suction end of the submersible pump 25 is equipped with a filter screen structure, which can filter out impurities such as sand and dust in the dew.
[0043] In summary, when this invention is used, the photoelectric sensor 12 senses the intensity of sunlight. When there is a deviation in the light intensity, it feeds back to the control system. The control system calculates the direction of the deviation and controls the motor 24 to work. The motor 24 drives the gear c22 to rotate, the gear c22 drives the gear b3 meshing with it to rotate, the gear b3 drives the gear a2 meshing with it to rotate, the gear a2 drives the connecting piece 17 to rotate, the connecting piece 17 drives the box a6 to rotate, and thus drives the photovoltaic panel to rotate, thereby realizing the function of adjusting the angle of the photovoltaic panel, ensuring that the photovoltaic panel can always be set to face the sun, and ensuring the light absorption rate of the photovoltaic panel.
[0044] When strong winds occur during the day, the wind speed sensor sends feedback to the control system. The control system then controls the motor 24a to keep the box a6 horizontal, reducing wind resistance. At the same time, it controls the telescopic component b14 to move the fixed cone 13 downward, allowing it to be inserted into the desert to enhance the stability of the entire device and reduce the impact of strong winds.
[0045] At night, the photovoltaic panels cease operation. At this time, the control system activates motor 24, which drives housings a6 and b5 to rotate into an inverted state. Housing a6 rotates the photovoltaic panels to this inverted state, causing them to face downwards. Simultaneously, the piston plate 19 inside housing a6 moves towards the light-transmitting membrane 9 under its own weight, compressing the air inside housing a6. This air passes through the vent a1101 and compresses the light-transmitting membrane 9, causing it to expand. The expanded light-transmitting membrane 9 has a surface area of... The increased size significantly reduces the adhesion of sand and dust to the surface of the translucent membrane 9, facilitating the automatic shedding of sand and dust. Simultaneously, after the box a6 is inverted, the pendulum ball 8 is in a free-suspension state. Due to the strong winds in the desert, the pendulum ball 8 swings freely under the action of the wind and impacts the expanded elastic membrane, causing it to shake and accelerating the shedding of sand and dust, thus achieving a self-cleaning function for sand and dust. Furthermore, the inverted box a6 can prevent sand and dust from accumulating on the surface of the translucent membrane 9, eliminating the need for staff to regularly clean the photovoltaic panels and reducing labor costs.
[0046] After box b5 is inverted along with box a6, the telescopic component a18 is activated, causing the sealing plate 20 to move away from box b5. At this time, outside air can enter box b5 through hole a1301. Under the action of cooling block 16 and protrusion 21, water vapor in the air forms dew on its surface. The dew formed on the surface of protrusion 21 will enter box b5 through hole a1301 for collection. The dew formed on the surface of cooling block 16 will be directly stored inside box b5. At night, the dew stored in box b5 will be collected through the hole a1301. The air pore b enters the box a6 and is absorbed by the sponge layer 28 on the piston plate 19. The sponge layer 28 can reduce the evaporation of dew at night. After dawn, the telescopic component a18 will control the sealing plate 20 to reset and seal the hole a1301 to prevent the collected dew from leaking. After the box b5 resets with the box a6 (flipped up), the piston plate 19 will move down and squeeze the sponge layer 28, thereby squeezing out the dew absorbed by the sponge layer 28. The squeezed-out dew enters the box b5 through the air pore b for collection.
[0047] During the day, when the temperature sensor 29 inside box a6 detects that the temperature value exceeds the threshold, the temperature sensor 29 feeds back to the control system. The control system then activates the submersible pump 25, which transports the dew collected inside box b5 through pipe a10 to the spray head 26. The sprayed water is then sprayed onto the light-transmitting membrane 9, which not only cleans the sand and dust accumulated on the surface of the light-transmitting membrane 9, but also carries away heat when the water evaporates, thus cooling the photovoltaic panels inside box a6.
[0048] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A multi-point driveable single-axis photovoltaic tracking bracket, characterized in that, include: A support structure, located on the ground, is used to support and drive the rotation of the photovoltaic panels; The installation mechanism includes a box body a (6), a box cover (7), a light-transmitting film (9), a photoelectric sensor (12), a piston plate (19), a box body b (5), a spray assembly, and a collection assembly; the box body a (6) has multiple components arranged side by side and equidistantly on the support mechanism; the box cover (7) is hinged to the box body a (6); the box cover (7) has an opening; the light-transmitting film (9) is located inside the opening; the photoelectric sensor (12) is located on the box cover (7) for locating the sun's position; the box body a (6) is connected to an installation device. The mounting plate (11) is used to install photovoltaic panels. A temperature sensor (29) is provided on the mounting plate (11). Multiple air holes a (1101) are opened on the mounting plate (11). The piston plate (19) is slidably disposed inside the box body a (6). Multiple air holes b are opened at the bottom end of the box body a (6). The box body b (5) is connected to the bottom end of the box body a (6). The collection component is disposed on the box body b (5) to collect dew. The spray component is disposed on the box body a (6) to spray dew to dissipate heat and cool down the photovoltaic panels. A hanging rope is attached to the lid (7); one end of the hanging rope is attached to a pendulum (8) for striking the light-transmitting membrane (9); after the box body a (6) is inverted, the pendulum (8) is in a free-suspension state. Due to the strong wind in the desert, the pendulum (8) swings freely under the action of the wind and strikes the expanded elastic membrane to make it shake, accelerating the shedding of sand and dust, and realizing the self-cleaning function of sand and dust. The bottom end of the box body b (5) is provided with multiple holes a (1301); the collecting assembly includes a telescopic component a (18), a sealing plate (20), a protrusion (21), and a cooling block (16); multiple protrusions (21) are provided and connected to the bottom end of the box body b (5); the protrusions (21) are located between adjacent holes a (1301); multiple cooling blocks (16) are provided and evenly distributed inside the box body b (5); the telescopic component a (18) is located on the inner side of the box body b (5); the telescopic end of the telescopic component a (18) passes through the box body b (5) and the sealing plate. The sealing plate (20) is connected; multiple holes b (2001) adapted to the protrusion (21) are opened on the sealing plate (20); pipes b (27) are connected at the four corners of the sealing plate (20); a fixed cone (13) is slidably connected inside the pipe b (27); a telescopic component b (14) is provided inside the pipe b (27); the telescopic component b (14) is connected to the fixed cone (13); the telescopic component b (14) drives the fixed cone (13) to move down, so that the fixed cone (13) is inserted into the desert to enhance the stability of the entire device and reduce the impact of strong winds; The spray assembly includes pipe a (10), submersible pump (25), mounting block (15), and spray head (26); the submersible pump (25) is located inside the box b (5); one end of pipe a (10) is connected to the submersible pump (25); the other end of pipe a (10) is connected to the spray head (26); the mounting block (15) is located on the box a (6) and connected to the spray head (26); a sponge layer (28) is provided on the side of the piston plate (19) facing the box b (5) to slow down water evaporation; outside air can pass through the hole a (1301) Entering box b (5), under the action of cooling block (16) and protrusion (21), water vapor in the air forms dew on its surface. The dew formed on the surface of protrusion (21) will enter box b (5) through hole a (1301) for collection. The dew formed on the surface of cooling block (16) will be directly stored inside box b (5). At night, the dew stored in box b (5) will enter box a (6) through rear air hole b and be absorbed by the sponge layer (28) on piston plate (19). (28) can reduce the evaporation of dew at night. After dawn, the telescopic component a (18) will control the sealing plate (20) to reset and seal the hole a (1301) to prevent the collected dew from leaking. After the box body b (5) resets with the box body a (6), the piston plate (19) will move down and squeeze the sponge layer (28), so that the dew absorbed by the sponge layer (28) can be squeezed out. The squeezed dew enters the box body b (5) through the air hole b for collection. During the day, when the temperature sensor (29) inside the box body a (6) is activated, the dew will be released. When the temperature value exceeds the threshold, the temperature sensor (29) feeds back to the control system, and the control system will activate the submersible pump (25). The submersible pump (25) will transport the dew collected inside the box b (5) through the pipe a (10) to the spray head (26), and then spray it out from the spray head (26). The sprayed water will splash onto the light-transmitting membrane (9), which can not only clean the sand and dust accumulated on the surface of the light-transmitting membrane (9), but also take away heat when the water evaporates, which can cool the photovoltaic panel inside the box a (6).
2. The multi-point driveable single-axis photovoltaic tracking bracket according to claim 1, characterized in that, The support mechanism includes plate a (1), main shaft (23), secondary shaft (4), motor (24), gear a (2) and connector (17); plate a (1) has two pieces and is arranged opposite to each other; the main shaft (23) and secondary shaft (4) are both connected to plate a (1); multiple connectors (17) are provided and are rotatably connected to the main shaft (23) through bearings; connector (17) is connected to box a (6); gear a (2) is connected to connector (17) and is coaxially arranged with the main shaft (23); motor (24) a is provided on plate a (1) and is connected to gear a (2) for transmission.
3. A multi-point driveable single-axis photovoltaic tracking bracket according to claim 2, characterized in that, Multiple gears b (3) that mesh with gear a (2) are connected to the secondary shaft (4); gear c (22) that meshes with gear b (3) is connected to the output end of the motor (24).