Photovoltaic panel rainfall collecting device and using method thereof

Abstract

The technical scheme of the invention relates to a photovoltaic panel rainfall collecting device and a use method thereof. The photovoltaic panel rainfall collecting device comprises a water retaining edge, a water collecting tank, an electric push rod, a connecting rod, a bent support, a water collecting pipe, a water supply pipe, a filter, a main water pipe, a water tank, a water outlet, a photovoltaic panel support, a water inlet, a control system and the like. The using method of the photovoltaic panel rainfall collecting device comprises the steps of assembling, parameter setting, collecting condition judging, device opening, device closing, standby state and the like. Rainwater on the photovoltaic panel can be collected and stored, the water tank water outlet is formed, collected water resources can be taken out for utilization, rainfall collection can be conducted on the photovoltaic panel with the fall and the included angle, and the device is suitable for the photovoltaic panel arranged on the sloping field. The device can be automatically opened and closed according to the environment temperature, whether rainfall occurs or not and whether the water tank is full or not, the collection process is automatic, and when collection is not performed, the water collection tank is erected, dust accumulation is avoided, and the service life of the filter is prolonged.

Description

Technical Field

[0001] The technical solution of the present invention relates to a device for collecting rainfall on a photovoltaic panel, specifically a photovoltaic panel surface rainfall collection device and a use method thereof. Background Art

[0002] With the development of society and economy, a large number of photovoltaic panels have been put into use. These photovoltaic panels can not only be arranged neatly on flat ground, but also be arranged in a staggered manner on slopes. Collecting the rainfall falling on the photovoltaic panels for reuse is of great significance for saving water resources. However, the prior art often uses fixed devices when collecting rainfall, which cannot be adjusted according to temperature changes. When the temperature drops, it often causes the melting snow to freeze in the collection device or even block the collection pipeline. In particular, the prior art even lacks rainfall collection devices and methods for photovoltaic panels arranged on slopes. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a photovoltaic panel surface rainfall collection device and a use method thereof, which can collect rainfall on the photovoltaic panel and can also collect rainfall for the photovoltaic panel arranged on the slope.

[0004] A technical solution adopted by the present invention to solve the technical problem includes a photovoltaic panel surface rainfall collection device, including a water retaining edge, a water collecting tank, an electric push rod, a hinge A, a hinge B, a hinge C, a connecting rod, a bending bracket, a water collecting pipe, a water supply pipe, a filter, a main water pipe, a water tank, a through hole A, a through hole B, a through hole C, a through hole D, a water outlet, a photovoltaic panel bracket, a water inlet and a control system; The water retaining edge is designed to be a triangular prism and its length is the same as that of the photovoltaic panel. The water retaining edge is installed on the two sides of the photovoltaic panel, and the photovoltaic panel bracket is installed on the ground. The front of the photovoltaic panel bracket is designed with two columns, each of which is designed with two through holes A. A crossbeam is designed in the middle of the two columns, and a through hole B is designed on the crossbeam. The water collecting tank is a semi-cylindrical tank body, and two hinges B are glued to the edge of the outer cylindrical surface of the water collecting tank. The two hinges B are distributed on the left and right and are coaxially arranged. The bottom center of the outer cylindrical surface of the water collecting tank is glued with a hinge C. The two end faces of the water collecting tank are provided with through holes C, and the through holes C are tangent to the bottom of the water collecting tank. The diameter of the through hole C is equal to that of the water collecting pipe, and the diameter of the water supply pipe is equal to that of the through hole C. The water collecting tank is connected to the photovoltaic panel bracket through a connecting rod and an electric push rod. The water collecting tank is located directly below the lower end of the photovoltaic panel. The connecting rod is designed with 2 One end of the connecting rod is connected to the hinge B of the water collecting tank via the through hole D. The two connecting rods are distributed on the left and right. The two connecting rods jointly support a rotating end of the water collecting tank. The other end of the connecting rod is provided with a hinge A. The hinge A is connected to the photovoltaic panel bracket through the through hole A. The upper end of the electric push rod is connected to the hinge C of the water collecting tank. The lower end of the electric push rod is connected to the bending bracket. The bending bracket is connected to the photovoltaic panel bracket through the through hole B. An insulation layer is provided on the outside of the water tank. The water tank is buried under the ground. A water outlet and a water inlet are provided on the water tank. A filter is installed above the water inlet. The other end of the filter is connected to the main water pipe, the other end of the main water pipe is connected to the water supply pipe, and the other end of the water supply pipe is connected to the through hole C on the water collecting tank. The through hole C that is neither connected to the water collecting pipe nor to the water supply pipe is sealed with a screw plug, and all pipeline connections are sealed connections; Furthermore, the water path of the above-mentioned photovoltaic panel surface rainfall collection device includes a branch A and a branch B, wherein the branch A includes a water collection tank and an electric push rod, and the branch B includes two water collection tanks and two electric push rods, and the two water collection tanks are connected by a water collection pipe; Furthermore, the control system includes a control cabinet, a battery, a controller, a temperature sensor, a rainfall sensor and a water level sensor, wherein the battery and the controller are installed inside the control cabinet, the temperature sensor and the rainfall sensor are installed on the top of the control cabinet, the water level sensor is installed on the top of the water tank cavity, the controller is electrically connected to the battery, and the electric push rod, the rainfall sensor, the water level sensor and the temperature sensor are all electrically connected to the controller.

[0005] The above-mentioned photovoltaic panel rainfall collection device, the controller is an STM32 single-chip microcomputer control system, the battery is a rechargeable lithium battery, the model of the electric push rod is: mukuhg150, the temperature sensor is an IP68 waterproof temperature sensor, the rainfall sensor is a Jianda Renke rain and snow transmitter, the water level sensor is a stainless steel normally open water level probe, and the water tank is an antifreeze collecting tank.

[0006] In the above-mentioned photovoltaic panel surface rainfall collection device, the branch A and branch B form a combined branch, and the combined branch is connected in series from high to low along the direction of the photovoltaic panel through a water collecting pipe to complete the rainwater collection of a row of photovoltaic panels.

[0007] In the above-mentioned photovoltaic panel surface rainfall collection device, the radius of the water collection trough is 250 mm, the material is PVC, the diameter of the through hole C is 75 mm, the length of the connecting rod is 400 mm, and the diameter of the main water pipe is 200 mm.

[0008] In the above-mentioned photovoltaic panel surface rainfall collection device, the diameter of the water supply pipe is 75 mm and the material is rubber.

[0009] In the above-mentioned photovoltaic panel surface rainfall collection device, the diameter of the water collecting pipe is 75 mm and the material is rubber.

[0010] The technical solution adopted by the present invention to solve the technical problem also includes a method for using the above-mentioned photovoltaic panel surface rainfall collection device, comprising the following steps: The first step is to assemble the device: First, determine the angle between two adjacent photovoltaic panels and the height difference between two adjacent photovoltaic panels: S1: If the angle is less than or equal to 15 degrees and the height difference is less than or equal to 100 mm, choose to install one branch A for collection; S2: If the angle is greater than 45 degrees or the height difference is greater than 200 mm, choose to establish a branch A for collection; S3: In other cases, choose to install branch B; the two water collection tanks of branch B are respectively installed directly below the lower end of a photovoltaic panel; Secondly, the branches are connected in series from high to low along the direction of the photovoltaic panels to complete the rainwater collection of a row of photovoltaic panels; Finally, connect the rainwater collection branches of each row of photovoltaic panels to the main water pipe, connect the main water pipe to the filter and water tank, and bury the water tank underground; If there is only one photovoltaic panel, directly install branch A for collection; Step 2: Set parameters: Set the critical temperature for stopping collection, set the duration TA of the signal when the rainfall sensor detects rainfall, and set the duration TB of a single opening of the device, in minutes; The third step is to determine whether the collection conditions are met: The collection device is turned on only when the value of the temperature sensor is higher than the critical temperature for stopping collection, the duration of the rainfall signal detected by the rainfall sensor is greater than the set time TA, and the water level sensor does not detect that the water tank is full. Step 4: Turn on the device: Start the electric push rod, extend the electric push rod, push the water collection tank to the position where the notch faces upward, so as to collect the rainfall flowing down from the photovoltaic panel. Keep the device turned on for TB minutes to continuously collect the operation and avoid frequent judgments, and then proceed to the third step again; Step 5. Close the device: When the condition in the third step is not met, the device is turned off, the electric push rod is started in the reverse direction, the electric push rod is retracted, and the water collection tank is pulled back to a posture where the notch faces forward, so as to avoid collecting the rainfall flowing down from the photovoltaic panel and avoid dust accumulation in the water collection tank; Step 6: Enter standby mode: Return to step 3 for judgment.

[0011] In the above-mentioned method of using the photovoltaic panel surface rainfall collection device, the angle between the two adjacent photovoltaic panels is the dihedral angle of the two adjacent photovoltaic panels, and the height difference between the two adjacent photovoltaic panels is the height difference between the lowest points on the two adjacent photovoltaic panels.

[0012] The components used in the above-mentioned photovoltaic panel rainfall collection device and its use method are well known to those skilled in the art and are obtained through well-known methods. The connection method of the components is within the control of those skilled in the art.

[0013] Compared with the prior art, the photovoltaic panel surface rainfall collection device and the use method thereof of the present invention have the following beneficial effects.

[0014] The present invention is designed with devices such as a water collecting trough, a water collecting pipe and a water tank, which can collect and store rainfall on the photovoltaic panel, and is provided with a water tank outlet, so that the collected water resources can be taken out for utilization.

[0015] The present invention is designed with a collecting branch A and a collecting branch B, which can collect rainfall for photovoltaic panels with a drop and an angle, and is suitable for photovoltaic panels arranged on a slope.

[0016] The present invention is provided with a temperature sensor, a rainfall sensor and a water level sensor, which can be automatically opened and closed according to the ambient temperature, whether it is raining and whether the water tank is full. The collection process is automated, and when not collecting, the water collection tank is erected to avoid dust accumulation and increase the service life of the filter.

[0017] The present invention is provided with a water retaining edge, which prevents rainfall from being lost from the side of the photovoltaic panel and can increase the amount of rainwater collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described with reference to the accompanying drawings and embodiments.

[0019] Figure 1This is a schematic diagram of the front structure of a photovoltaic panel surface rainfall collection device of the present invention.

[0020] Figure 2 It is a schematic diagram of the back structure of a photovoltaic panel surface rainfall collection device of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the water collecting tank in the collection unit with the front side of the notch facing upward.

[0022] Figure 4 This is a schematic diagram of the structure of the water collecting tank in the collection unit with the notch facing forward.

[0023] Figure 5 It is a structural schematic diagram of branch A of a photovoltaic panel surface rainfall collection device of the present invention.

[0024] Figure 6 It is a structural schematic diagram of branch B of a photovoltaic panel surface rainfall collection device according to the present invention.

[0025] Figure 7 Schematic diagram of the bottom structure of the sump.

[0026] Figure 8 This is a schematic diagram of the front structure of the water collection tank.

[0027] Fig. 9 It is a schematic diagram of the connecting rod structure.

[0028] Fig.10 It is a structural schematic diagram of an electric push rod.

[0029] Fig.11 Schematic diagram of the filter structure.

[0030] Fig.12 This is a schematic diagram of the water tank structure.

[0031] Fig.13 It is a schematic diagram of the structure of photovoltaic panels and brackets.

[0032] Fig.14 The present invention is a logic flow chart of a method for using a photovoltaic panel surface rainfall collection device.

[0033] In the figure: 1. Photovoltaic panel, 2. Water collecting tank, 3. Electric push rod, 4. Connecting rod, 5. Hinge A, 6. Hinge B, 7. Water collecting pipe, 8. Filter, 9. Water tank, 10. Photovoltaic panel bracket, 11. Through hole A, 12. Through hole B, 13. Through hole C, 14. Through hole D, 15. Hinge C, 16. Water retaining edge, 17. Bending bracket, 18. Water supply pipe, 19. Water outlet, 20. Main water pipe, 21. Water inlet, 22. Control cabinet, 23. Temperature sensor, 24. Rainfall sensor. DETAILED DESCRIPTION

[0034] Figure 1~2 The embodiments shown in Figures 9 to 13 show that a photovoltaic panel surface rainfall collection device of the present invention includes a water retaining edge 16, a water collecting tank 2, an electric push rod 3, a hinge A5, a hinge B6, a hinge C15, a connecting rod 4, a bending bracket 17, a water collecting pipe 7, a water supply pipe 18, a filter 8, a main water pipe 20, a water tank 9, a through hole A11, a through hole B12, a through hole C13, a through hole D14, a water outlet 19, a photovoltaic panel bracket 10, a water inlet 21 and a control system; The water retaining edge 16 is designed to be a triangular prism and has the same length as the photovoltaic panel 1. The water retaining edge 16 is installed on the two sides of the photovoltaic panel 1. The water retaining edge 16 is used to prevent rainfall from flowing out from the sides of the photovoltaic panel 1. The photovoltaic panel bracket 10 is installed on the ground. The photovoltaic panel bracket 10 is used to support the entire device. The front of the photovoltaic panel bracket 10 is designed to be 2 columns, each of which is designed with 2 through holes A11. A crossbeam is designed between the two columns, and a through hole B12 is designed on the crossbeam. The through hole C13 is equal to the diameter of the water collecting pipe 7, and the water supply pipe 18 is installed on the ground. The diameter of the through hole C13 is equal to that of the water collecting tank 2. The water collecting tank 2 is connected to the photovoltaic panel bracket 10 through the connecting rod 4 and the electric push rod 3. The water collecting tank 2 is located directly below the lower end of the photovoltaic panel 1. The water collecting tank 2 is used to collect rainfall. There are two connecting rods 4. One end of the connecting rod 4 is connected to the hinge B6 of the water collecting tank 2 through the through hole D14. The two connecting rods 4 are distributed on the left and right. The two connecting rods 4 jointly support a rotating end of the water collecting tank 2. The other end of the connecting rod 4 is provided with a hinge A5. The hinge A5 is connected to the photovoltaic panel bracket 10 through the through hole A11. The electric push rod 3 is provided with a hinge B6. The upper end is connected to the hinge C15 of the water collecting tank 2, the lower end of the electric push rod 3 is connected to the bending bracket 17, the bending bracket 17 is connected to the photovoltaic panel bracket 10 through the through hole B12, the electric push rod 3 is used to support the other end of the water collecting tank 2, and the water collecting tank 2 can be rotated under the push and pull of the electric push rod 3. An insulation layer is arranged on the outside of the water tank 9, and the water tank 9 is buried under the ground. Burying is conducive to heat preservation. The water tank 9 is used to store the collected rainwater. The water tank 9 is provided with a water outlet 19 and a water inlet 21. The water outlet 19 is used to take water from the water tank 9. When no water is taken, the water inlet 21 is used to store the collected rainwater. The water outlet 19 can be blocked, and a filter 8 is installed above the water inlet 21. The filter 8 is used to filter impurities in rainwater. The other end of the filter 8 is connected to the main water pipe 20, which is the main waterway for collecting rainwater. The other end of the main water pipe 20 is connected to the water delivery pipe 18, and the other end of the water delivery pipe 18 is connected to the through hole C13 on the water collection tank 2. The through hole C13 that is neither connected to the water collection pipe 7 nor to the water delivery pipe 18 is sealed with a screw plug to prevent the loss of rainwater in the water collection tank. All pipeline connections are sealed connections; Furthermore, the control system includes a control cabinet 22, a battery, a controller, a temperature sensor 23, a rainfall sensor 24 and a water level sensor, wherein the battery and the controller are installed inside the control cabinet 22, the temperature sensor 23 and the rainfall sensor 24 are installed on the top of the control cabinet 22, the water level sensor is installed on the top of the inner cavity of the water tank 9, the controller is electrically connected to the battery, the electric push rod 3, the rainfall sensor 24, the water level sensor and the temperature sensor 23 are all electrically connected to the controller, and the control system detects, judges and controls the environment of the entire device.

[0035] Figures 3 to 6 The illustrated embodiment shows that the water path of a photovoltaic panel surface rainfall collection device of the present invention comprises a branch A and a branch B, wherein the branch A comprises a water collecting tank 2 and an electric push rod 3, the branch B comprises two water collecting tanks 2 and two electric push rods 3, and the two water collecting tanks 2 are connected by a water collecting pipe 7; two adjacent photovoltaic panels 1 with a small angle and a drop can share a branch A, two adjacent photovoltaic panels 1 with a moderate angle and a drop can share a branch B, and two adjacent photovoltaic panels 1 with a large angle or a drop need to establish their own branches separately, and the branch A and the branch B can be combined into a larger collection branch in the form of series connection, which is used to collect rainfall on a row of photovoltaic panels 1 distributed in a staggered manner; the combination form of the branch A and the branch B can be a combination of several branches A, or a combination of several branches B, or a combination of several branches A and several branches B; the combination direction of the branch A and the branch B is to be combined in the direction of the height decrease of the photovoltaic panel 1 to facilitate the flow of rainwater; Figure 7-8 The embodiment shown shows that the water collection tank 2 is a semi-cylindrical tank body, so as to collect rainwater. Two hinges B6 are glued to the edge of the outer cylindrical surface of the water collection tank 2. The two hinges B6 are distributed left and right and are coaxially arranged. A hinge C15 is glued to the center of the bottom of the outer cylindrical surface of the water collection tank 2. The two end faces of the water collection tank 2 are both provided with through holes C13. The through holes C13 are tangent to the bottom of the water collection tank 2 to prevent rainwater from accumulating in the water collection tank 2. Fig.14 The illustrated embodiment shows that the method for using the above-mentioned photovoltaic panel surface rainfall collection device comprises the following steps: The first step is to assemble the device: First, determine the angle and height difference between two adjacent photovoltaic panels 1: S1: If the angle is less than or equal to 15 degrees and the height difference is less than or equal to 100 mm, choose to install one branch A for collection; S2: If the angle is greater than 45 degrees or the height difference is greater than 200 mm, choose to establish a branch A for collection; S3: In other cases, choose to install branch B; the two water collection tanks 2 of branch B are respectively installed directly below the lower end of a photovoltaic panel 1; Secondly, the branches are connected in series from high to low along the direction of the photovoltaic panels 1 to complete the rainwater collection of a row of photovoltaic panels 1; Finally, the rainwater collection branches of each row of photovoltaic panels 1 are connected to the main water pipe 20, the main water pipe 20 is connected to the filter 8 and the water tank 9, and the water tank 9 is buried underground; If there is only one photovoltaic panel 1, directly install branch A for collection; Step 2: Set parameters: Set the critical temperature for stopping collection, set the duration TA of the signal of rainfall detected by the rainfall sensor 24, and set the duration TB of the single opening device, in minutes; The third step is to determine whether the collection conditions are met: The collection device is turned on only when the value of the temperature sensor 23 is higher than the critical temperature for stopping collection, the duration of the rainfall signal detected by the rainfall sensor 24 is greater than the set time TA, and the water level sensor does not detect that the water tank 9 is full. Step 4: Turn on the device: Start the electric push rod 3, the electric push rod 3 extends, and pushes the water collection tank 2 to a posture where the notch faces upward, so as to facilitate the collection of rainfall flowing down from the photovoltaic panel 1. The device is turned on for TB minutes to continuously collect the operation and avoid frequent judgments, and then the third step is performed again; Step 5. Close the device: When the condition in the third step is not met, the device is turned off, the electric push rod 3 is started in the reverse direction, the electric push rod 3 is retracted, and the water collection tank 2 is pulled back to a posture where the notch faces forward, so as to avoid collecting the rainfall flowing down from the photovoltaic panel 1 and avoid dust accumulation in the water collection tank 2; Step 6: Enter standby mode: Return to step 3 for judgment. Example

[0036] According to the above Figures 1 to 13As shown, a photovoltaic panel surface rainfall collection device is manufactured, wherein the controller is an STM32 single-chip microcomputer control system, the battery is a rechargeable lithium battery, the model of the electric push rod 3 is: mukuhg150, the temperature sensor 23 is an IP68 waterproof temperature sensor 23, the rainfall sensor 24 is a Jianda Renke rain and snow transmitter, the water level sensor is a stainless steel normally open water level probe, and the water tank 9 is an antifreeze water collecting tank 9; the branch A and the branch B form a combined branch, and the combined branch is connected in series from high to low along the direction of the photovoltaic panel 1 through the water collecting pipe 7 to complete the rainwater collection of a row of photovoltaic panels 1; the radius of the water collecting tank 2 is 250 mm, the material is PVC, the diameter of the through hole C13 is 75 mm, the length of the connecting rod 4 is 400 mm, and the diameter of the main water pipe 20 is 200 mm; the diameter of the water supply pipe 18 is 75 mm, and the material is rubber; the diameter of the water collecting pipe 7 is 75 mm, and the material is rubber.

[0037] According to the above Fig.14 The method shown uses the present device, wherein the angle between the two adjacent photovoltaic panels 1 is the dihedral angle of the two adjacent photovoltaic panels 1, and the height difference between the two adjacent photovoltaic panels 1 is the height difference between the lowest points on the two adjacent photovoltaic panels 1.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A photovoltaic panel surface rainfall collection device, comprising a water retaining edge, a water collection tank, an electric push rod, a hinge A, a hinge B, a hinge C, a connecting rod, a bending bracket, a water collection pipe, a water delivery pipe, a filter, a main water pipe, a water tank, a through hole A, a through hole B, a through hole C, a through hole D, a water outlet, a photovoltaic panel bracket, a water inlet and a control system, characterized in that: The water retaining edge is designed to be a triangular prism and its length is the same as that of the photovoltaic panel. The water retaining edge is installed on the two sides of the photovoltaic panel, and the photovoltaic panel bracket is installed on the ground. The front of the photovoltaic panel bracket is designed with two columns, each of which is designed with two through holes A. A crossbeam is designed in the middle of the two columns, and a through hole B is designed on the crossbeam. The water collecting tank is a semi-cylindrical tank body, and two hinges B are glued to the edge of the outer cylindrical surface of the water collecting tank. The two hinges B are distributed on the left and right and are coaxially arranged. The bottom center of the outer cylindrical surface of the water collecting tank is glued with a hinge C. The two end faces of the water collecting tank are provided with through holes C, and the through holes C are tangent to the bottom of the water collecting tank. The diameter of the through hole C is equal to that of the water collecting pipe, and the diameter of the water supply pipe is equal to that of the through hole C. The water collecting tank is connected to the photovoltaic panel bracket through a connecting rod and an electric push rod. The water collecting tank is located directly below the lower end of the photovoltaic panel. The connecting rod is designed with 2 One end of the connecting rod is connected to the hinge B of the water collecting tank via the through hole D. The two connecting rods are distributed on the left and right. The two connecting rods jointly support a rotating end of the water collecting tank. The other end of the connecting rod is provided with a hinge A. The hinge A is connected to the photovoltaic panel bracket through the through hole A. The upper end of the electric push rod is connected to the hinge C of the water collecting tank. The lower end of the electric push rod is connected to the bending bracket. The bending bracket is connected to the photovoltaic panel bracket through the through hole B. An insulation layer is provided on the outside of the water tank. The water tank is buried under the ground. A water outlet and a water inlet are provided on the water tank. A filter is installed above the water inlet. The other end of the filter is connected to the main water pipe, the other end of the main water pipe is connected to the water supply pipe, and the other end of the water supply pipe is connected to the through hole C on the water collecting tank. The through hole C that is neither connected to the water collecting pipe nor to the water supply pipe is sealed with a screw plug, and all pipeline connections are sealed connections; Furthermore, the water path of the above-mentioned photovoltaic panel surface rainfall collection device includes a branch A and a branch B, wherein the branch A includes a water collection tank and an electric push rod, and the branch B includes two water collection tanks and two electric push rods, and the two water collection tanks are connected by a water collection pipe; Furthermore, the control system includes a control cabinet, a battery, a controller, a temperature sensor, a rainfall sensor and a water level sensor, wherein the battery and the controller are installed inside the control cabinet, the temperature sensor and the rainfall sensor are installed on the top of the control cabinet, the water level sensor is installed on the top of the water tank cavity, the controller is electrically connected to the battery, and the electric push rod, the rainfall sensor, the water level sensor and the temperature sensor are all electrically connected to the controller.

2. A photovoltaic panel surface rainfall collection device according to claim 1, characterized in that: The controller is an STM32 single-chip microcomputer control system, the battery is a rechargeable lithium battery, the model of the electric push rod is: mukuhg150, the temperature sensor is an IP68 waterproof temperature sensor, the rainfall sensor is a Jianda Renke rain and snow transmitter, the water level sensor is a stainless steel normally open water level probe, and the water tank is an antifreeze collecting tank.

3. A photovoltaic panel surface rainfall collection device according to claim 1, characterized in that: The branch A and the branch B form a combined branch, and the combined branch is connected in series from high to low along the direction of the photovoltaic panels through a water collecting pipe to complete the rainwater collection of a row of photovoltaic panels.

4. A photovoltaic panel surface rainfall collection device according to claim 1, characterized in that: The radius of the water collecting trough is 250 mm, the material is PVC, the diameter of the through hole C is 75 mm, the length of the connecting rod is 400 mm, and the diameter of the main water pipe is 200 mm.

5. The photovoltaic panel surface rainfall collection device according to claim 1, characterized in that: The diameter of the water supply pipe is 75 mm and the material is rubber.

6. A photovoltaic panel surface rainfall collection device according to claim 1, characterized in that: The diameter of the water collecting pipe is 75 mm and the material is rubber.

7. A method for using a photovoltaic panel surface rainfall collection device, characterized in that: The steps include: The first step is to assemble the device: First, determine the angle between two adjacent photovoltaic panels and the height difference between two adjacent photovoltaic panels: S1: If the angle is less than or equal to 15 degrees and the height difference is less than or equal to 100 mm, choose to install one branch A for collection; S2: If the angle is greater than 45 degrees or the height difference is greater than 200 mm, choose to establish a branch A for collection; S3: In other cases, choose to install branch B; the two water collection tanks of branch B are respectively installed directly below the lower end of a photovoltaic panel; Secondly, the branches are connected in series from high to low along the direction of the photovoltaic panels to complete the rainwater collection of a row of photovoltaic panels; Finally, connect the rainwater collection branches of each row of photovoltaic panels to the main water pipe, connect the main water pipe to the filter and water tank, and bury the water tank underground; If there is only one photovoltaic panel, directly install branch A for collection; The second step is to set the parameters: Set the critical temperature for stopping collection, set the duration TA of the signal when the rainfall sensor detects rainfall, and set the duration TB of a single opening of the device, in minutes; The third step is to determine whether the collection conditions are met: The collection device is turned on only when the value of the temperature sensor is higher than the critical temperature for stopping collection, the duration of the rainfall signal detected by the rainfall sensor is greater than the set time TA, and the water level sensor does not detect that the water tank is full. Step 4: Turn on the device: Start the electric push rod, extend the electric push rod, push the water collection tank to the position where the notch faces upward, so as to collect the rainfall flowing down from the photovoltaic panel. Keep the device turned on for TB minutes to continuously collect the operation and avoid frequent judgments, and then proceed to the third step again; Step 5. Close the device: When the condition in the third step is not met, the device is turned off, the electric push rod is started in the reverse direction, the electric push rod is retracted, and the water collection tank is pulled back to a posture where the notch faces forward, so as to avoid collecting the rainfall flowing down from the photovoltaic panel and avoid dust accumulation in the water collection tank; Step 6: Enter standby mode: Return to step 3 for judgment.

8. The method for using the photovoltaic panel surface rainfall collection device according to claim 7, characterized in that: The angle between the two adjacent photovoltaic panels is the dihedral angle of the two adjacent photovoltaic panels, and the height difference between the two adjacent photovoltaic panels is the height difference between the lowest points on the two adjacent photovoltaic panels.

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