Temperature adjusting system for photovoltaic power generation

Abstract

The invention discloses a temperature adjusting system for photovoltaic power generation, and relates to the technical field of photovoltaic power generation. A water inlet and a water outlet are formed in the back side of a photovoltaic photo-thermal assembly, and a first butt joint and a second butt joint are arranged on butt joint equipment; the cold storage water tank and the hot storage water tank are connected with the first butt joint through a water inlet pipeline and connected with the second butt joint through a water return pipeline. The first moving equipment drives the first butt joint and the second butt joint to move transversely; the second moving equipment drives the first butt joint and the second butt joint to move longitudinally; the angle adjusting mechanism adjusts the first butt joint and the second butt joint to be parallel to the water inlet and the water outlet; the extension equipment adjusts the first butt joint and the second butt joint to be in a state of respectively overlapping with the axes of the water inlet and the water outlet; the butt joint equipment enables the first butt joint to be inserted into the water inlet and the second butt joint to be inserted into the water outlet. The device can meet the requirements of a photovoltaic photo-thermal module expansion array, and is beneficial to improving the use flexibility.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power generation technology, specifically to a temperature regulation system for photovoltaic power generation. Background Technology

[0002] Photovoltaic power generation technology, as a clean and renewable energy source, has been widely applied in various scenarios. While traditional photovoltaic panels generate electricity under sunlight, some of this energy is converted into heat, causing the panels themselves to heat up. Excessive heat in photovoltaic panels significantly reduces their photoelectric conversion efficiency and may affect the lifespan of the modules.

[0003] To alleviate this problem, existing technologies often employ photovoltaic (PV) thermal modules. A PV thermal module includes a frame structure, photovoltaic panels, and a fluid channel. The photovoltaic panels are mounted on the light-facing side of the frame structure, and the fluid channel is located on the back side of the photovoltaic panels. The back side of the frame structure has an inlet and an outlet, both of which are connected to the fluid channel. The inlet and outlet are connected to a cold water storage tank and a hot water storage tank via external pipes. Hot water from the hot water storage tank raises the temperature of the PV thermal module, while cold water from the cold water storage tank lowers the temperature, maintaining the PV thermal module at its optimal operating temperature and ensuring power generation efficiency.

[0004] However, when connecting the cold water storage tank and hot water storage tank to the photovoltaic thermal modules using pipes, the pipes, photovoltaic thermal modules, cold water storage tank, and hot water storage tank form a closed, fixed pipe network. When expanding the photovoltaic thermal module array, the lack of flexibility of the fixed pipe network makes it difficult to adapt to the needs of expanding the photovoltaic thermal module array, thus reducing the flexibility of use. Summary of the Invention

[0005] The present invention addresses the aforementioned shortcomings of the existing technology by providing a temperature regulation system for photovoltaic power generation. The present invention can adapt to the needs of expanded arrays of photovoltaic thermal modules, thereby improving the flexibility of use.

[0006] To achieve the above objectives, the invention provides the following technical solution: A temperature regulation system for photovoltaic power generation includes a photovoltaic thermal module, a cold water storage tank and a hot water storage tank. The back side of the photovoltaic thermal module is provided with an inlet and an outlet. The system also includes a first connector, a second connector, a first mobile device, a second mobile device, an angle adjustment device, an extension device and a docking device. The first and second pairs of connectors are located on the docking equipment. The cold water tank and the hot water tank are connected to the first pair of connectors through the inlet pipe, and the cold water tank and the hot water tank are connected to the second pair of connectors through the return pipe. The first mobile device is used to drive the first and second connectors to move laterally. The second mobile device is mounted on the first mobile device and is used to drive the first and second connectors to move longitudinally. An angle adjustment mechanism is provided on the second mobile device. The angle adjustment mechanism is used to adjust the first and second connectors to a state parallel to the inlet and the outlet. The extension device is mounted on the angle adjustment device, and the extension device is used to adjust the first pair of connectors and the second pair of connectors to a state where they are respectively aligned with the axes of the inlet and the outlet. The docking device is located on the extension device and is used to insert the first pair of connectors into the inlet and the second pair of connectors into the outlet.

[0007] Furthermore, the water inlet pipeline includes a cold water inlet pipe, a hot water inlet pipe, an inlet three-way valve, an inlet pump, and a main inlet pipe; the first end of the cold water inlet pipe is connected to the cold water storage tank; the first end of the hot water inlet pipe is connected to the hot water storage tank; the second ends of the cold water inlet pipe and the second ends of the hot water inlet pipe are respectively connected to the two ports of the inlet three-way valve, the third port of the inlet three-way valve is connected to the inlet pump, and the inlet pump is connected to the first connector through the main inlet pipe; The return water pipeline includes a cold water return pipe, a hot water return pipe, a return water three-way valve, and a return water main pipe; the first end of the cold water return pipe is connected to the cold water storage tank; the first end of the hot water return pipe is connected to the hot water storage tank; the second ends of the cold water return pipe and the second ends of the hot water return pipe are respectively connected to the two ports of the return water three-way valve, and the third port of the return water three-way valve is connected to the second connector through the return water main pipe.

[0008] Furthermore, this also includes the host computer; The photovoltaic thermal module is equipped with a temperature measuring element, a positioning element, a first positioning detection element, and a second positioning detection element. The temperature measuring element is used to detect the temperature of the photovoltaic thermal module and transmit the temperature information to the host computer. The positioning element is used to transmit the position information of the photovoltaic thermal module to the host computer. The first positioning detection element is used to detect whether the first mobile device has moved into position and transmit the positioning information to the host computer. The second positioning detection element is used to detect whether the second connector and the first connector are respectively inserted into the water outlet and the water inlet, and transmit the positioning information to the host computer. The extension device is equipped with a first ranging element, a second ranging element, and a third ranging element; in the vertical direction of the extension device, the first ranging element and the second ranging element are used to measure the distance to the photovoltaic thermal module and transmit the distance information to the host computer; in the extension direction of the extension device, the third ranging element is used to measure the distance to the photovoltaic thermal module and transmit the distance information to the host computer. The host computer is used to control the operation of the first mobile device, the second mobile device, the angle adjustment device, the extension device, the docking device, the inlet three-way valve, the return three-way valve, and the inlet pump.

[0009] Furthermore, the first mobile device is equipped with the cold water storage tank and the hot water storage tank inside, and the upper part of the first mobile device is equipped with a support frame, on which the inlet three-way valve, the return three-way valve and the inlet pump are installed.

[0010] Furthermore, the first mobile device includes a frame, wheels, a first motor, a first transmission assembly, a second transmission assembly, and a track. The frame contains the cold water tank and the hot water tank. The top of the frame has the support frame, and the bottom of the frame has at least two rows of wheelsets. Each row of wheelsets includes at least two wheels, and the wheels in each row of wheelsets are connected by a connecting shaft. The first motor is mounted on the frame and is connected to the connecting shaft in one row of wheelsets through the first transmission assembly. The connecting shafts in adjacent rows of wheelsets are connected by the second transmission assembly, and the wheels cooperate with the track.

[0011] Furthermore, the second mobile device includes a mobile frame, a first lead screw, a first rotating shaft, a second motor, and a first nut. The mobile frame is slidably connected to the top of the vehicle frame along the longitudinal direction. The bottom of the mobile frame is rotatably connected to the first rotating shaft and two first lead screws. Both ends of the first rotating shaft are connected to the first lead screws through commutators. The axial direction of the first rotating shaft is perpendicular to the axial direction of the first lead screws. The second motor is mounted on the mobile frame, and the output end of the second motor is connected to the commutator at one end of the first rotating shaft. The first lead screw cooperates with the first nut, and the first nut is located on the top of the vehicle frame.

[0012] Furthermore, the angle adjustment device includes an adjustment frame and an adjustment telescopic component. The adjustment frame is inclined, with its lower part hinged to the movable frame, its upper part hinged to the output end of the adjustment telescopic component, and its bottom hinged to the movable frame.

[0013] Furthermore, the extension device includes an extension frame, a second lead screw, a second rotating shaft, a third motor, and a second nut. The extension frame is slidably connected to the adjusting frame along the tilt direction of the adjusting frame. The bottom of the extension frame is rotatably connected to the second rotating shaft and two second lead screws. Both ends of the second rotating shaft are connected to the second lead screws through commutators. The axial direction of the second rotating shaft is perpendicular to the axial direction of the second lead screws. The third motor is mounted on the extension frame, and the output end of the third motor is connected to the commutator at one end of the second rotating shaft. A second nut is provided on the second lead screw, and the second nut is mounted on the adjusting frame.

[0014] Furthermore, the docking device includes a docking frame and a docking telescopic component. The docking frame is provided with the first mating joint and the second mating joint. The docking frame is connected to the output end of the docking telescopic component, which is located on the extension frame.

[0015] Furthermore, the photovoltaic thermal module is provided in multiple forms along the lateral direction. Compared with the prior art, the beneficial effects of the present invention are: 1. This system is divided into a static section and a dynamic section. The static section consists of photovoltaic (PV) thermal modules. The dynamic section includes a first connector, a second connector, inlet pipes, outlet pipes, a cold water tank, a hot water tank, a first mobile device, a second mobile device, angle adjustment equipment, extension equipment, and docking equipment. The dynamic and static sections no longer have fixed, permanent piping connections. Instead, the dynamic section can be temporarily and on-demand moved to the location of the designated PV thermal modules and connected to them, without relying on a fixed piping network. When it is necessary to expand the PV thermal module array, only the movement range of the first mobile device needs to be extended, without the need to re-lay a fixed piping network, thus improving operational flexibility.

[0016] 2. Because the dynamic part can be temporarily and on demand moved to the location of the designated photovoltaic and solar thermal modules and established with them, a one-to-many layout of the dynamic part and the static part can be realized, which can simplify the pipeline network and help reduce the cost of pipeline layout.

[0017] 3. When a photovoltaic thermal module in the photovoltaic thermal module array needs maintenance or replacement, since each photovoltaic thermal module is an independent individual, there is no need to empty and disassemble the entire piping system. Only the specific photovoltaic thermal module needs to be emptied or disassembled, which facilitates maintenance or replacement, improves maintenance convenience, and reduces the impact on the operation of the entire photovoltaic thermal module array.

[0018] 4. By coordinating the first mobile device (horizontal movement) and the second mobile device (vertical movement), the device can be quickly positioned near the target photovoltaic thermal module in a large photovoltaic array. Combined with the angle adjustment device, extension device, and docking device, it can accurately compensate for the deviation of the installation position and angle of the photovoltaic thermal module, ensuring that the first and second connectors are accurately docked with the water inlet and outlet on the back of the photovoltaic thermal module, avoiding leakage or connection failure caused by misalignment, and improving the reliability of use.

[0019] 5. The design of separate cold water tank and hot water tank, combined with the control of inlet three-way valve, return three-way valve and inlet pump, allows for flexible selection of injecting cold water to cool down or returning hot water to maintain the temperature according to the actual temperature of the photovoltaic thermal module. This enables on-demand temperature adjustment of individual photovoltaic thermal modules, avoiding overheating or overcooling, and improving the power generation efficiency of photovoltaic panels.

[0020] 6. By integrating and controlling various sensors (temperature measuring elements, positioning elements, first and second positioning detection elements, first, second and third ranging elements) and actuators (first and second moving devices, angle adjustment devices, extension devices, docking devices and valves and pumps, etc.) through the host computer, fully automatic identification, positioning, docking and temperature control can be achieved without manual intervention, which can reduce operation and maintenance costs and improve system response speed and reliability.

[0021] 7. The first mobile device can integrate a cold storage hot water tank and pump valve system. The first mobile device, second mobile device, angle adjustment device, extension device, and docking device are integrated step by step, resulting in a compact structure that is easy to maintain. In particular, it can be adapted to multiple horizontally arranged photovoltaic thermal modules, making it easy to expand to large-scale photovoltaic power plant applications.

[0022] 8. The second mobile device and the extension device adopt a two-set lead screw transmission method, which ensures smooth movement and high precision, and is suitable for complex outdoor environments. Attached Figure Description

[0023] Figure 1 A three-dimensional diagram of a photovoltaic power generation temperature regulation system; Figure 2 A front view of a temperature control system for photovoltaic power generation; Figure 3 A 3D view of a photovoltaic thermal module; Figure 4 This is a front view of a photovoltaic thermal module; Figure 5 To remove the photovoltaic and solar thermal components, the three-dimensional structure of the present invention Figure 1 ; Figure 6 To remove the photovoltaic and solar thermal components, the three-dimensional structure of the present invention Figure 2 ; Figure 7 The three-dimensional structure of the first moving mechanism Figure 1 ; Figure 8 The three-dimensional structure of the first moving mechanism Figure 2 ; Figure 9 For the three-dimensional design of the second moving mechanism and the angle adjustment mechanism Figure 1 ; Figure 10 For the three-dimensional design of the second moving mechanism and the angle adjustment mechanism Figure 2 ; Figure 11 For the three-dimensional extension mechanism and docking mechanism Figure 1 ; Figure 12 For the three-dimensional extension mechanism and docking mechanism Figure 2 ; Figure 13A 3D view of the docking mechanism after the addition of the pressing rod; Figure 14 A three-dimensional view of the cold water storage tank, hot water storage tank, inlet pipe, outlet pipe, first joint, second joint, and docking mechanism.

[0024] Explanation of reference numerals in the attached figures: 100-Photovoltaic thermal module, 101-Water inlet, 102-Water outlet, 103-Positioning element, 104-First positioning detection element, 105-Second positioning detection element, 106-Distance measuring frame. 201-Cold water storage tank, 202-Hot water storage tank, 203-Cold water inlet pipe, 204-Cold water return pipe, 205-Hot water inlet pipe, 206-Hot water return pipe, 207-Inlet three-way valve, 208-Inlet pump, 209-Inlet main pipe, 210-Return three-way valve, 211-Return main pipe 301 - First connector, 302 - Second connector, 303 - Press rod, 304 - Through hole 400-First moving equipment, 401-Frame, 402-Wheel, 403-First motor, 404-First transmission assembly, 405-Second transmission assembly, 406-Rail, 407-Connecting shaft, 408-Bracket, 409-Reflector 500 - Second moving device, 501 - Moving frame, 502 - First lead screw, 503 - First rotating shaft, 504 - Second motor, 505 - First nut. 600 - Angle adjustment device, 601 - Adjustment frame, 602 - Adjustment telescopic component. 700 - Extension device; 701 - Extension frame; 702 - Second lead screw; 703 - Second rotating shaft; 704 - Third motor; 705 - Second nut; 706 - First ranging element; 707 - Second ranging element; 708 - Third ranging element. 800 - Docking equipment, 801 - Docking frame, 802 - Docking telescopic component, 803 - Trigger frame. Detailed Implementation

[0025] 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, not all, of the embodiments of the present invention. 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.

[0026] Example 1: See Figure 1 and Figure 2A photovoltaic power generation temperature regulation system includes a photovoltaic thermal module 100, a cold water storage tank 201, a hot water storage tank 202, a first connector 301, a second connector 302, a first mobile device 400, a second mobile device 500, an angle adjustment device 600, an extension device 700, and a docking device 800.

[0027] See Figure 1 Multiple photovoltaic and solar thermal modules 100 are arranged laterally. See also Figure 2 , Figure 3 and Figure 4 The photovoltaic thermal module 100 has an inlet 101 and an outlet 102 on its back side. The photovoltaic thermal module 100 is fixedly installed on the site (such as the ground or roof).

[0028] See Figure 12 The first pair of connectors 301 and the second pair of connectors 302 are located on the docking device 800. See also Figure 2 The first pair of connectors 301 is used to connect to the inlet 101, and the second pair of connectors 302 is used to connect to the outlet 102.

[0029] See Figure 14 The first pair of connectors 301 are connected to the cold water storage tank 201 and the hot water storage tank 202 through the water inlet pipe, and the second pair of connectors 302 are connected to the cold water storage tank 201 and the hot water storage tank 202 through the water return pipe.

[0030] See Figure 14 The water inlet pipeline includes a cold water inlet pipe 203, a hot water inlet pipe 205, an inlet three-way valve 207, an inlet pump 208, and an inlet main pipe 209. The first end of the cold water inlet pipe 203 is connected to the cold water storage tank 201; the first end of the hot water inlet pipe 205 is connected to the hot water storage tank 202; the second ends of the cold water inlet pipe 203 and the hot water inlet pipe 205 are respectively connected to the two ports of the inlet three-way valve 207, and the third port of the inlet three-way valve 207 is connected to the inlet pump 208. The inlet pump 208 is connected to the first connector 301 through the inlet main pipe 209.

[0031] See Figure 14 The return water pipeline includes a cold water return pipe 204, a hot water return pipe 206, a return water three-way valve 210, and a return water main pipe 211. The first end of the cold water return pipe 204 is connected to the cold water storage tank 201; the first end of the hot water return pipe 206 is connected to the hot water storage tank 202; the second ends of the cold water return pipe 204 and the second ends of the hot water return pipe 206 are respectively connected to the two ports of the return water three-way valve 210, and the third port of the return water three-way valve 210 is connected to the second connector 302 through the return water main pipe 211.

[0032] See Figure 1 and Figure 2A first mobile device 400 is used to drive the first connector 301 and the second connector 302 laterally towards the inlet 101 and outlet 102 of the photovoltaic thermal module 100. A second mobile device 500 is mounted on the first mobile device 400 and is used to drive the first connector 301 and the second connector 302 longitudinally towards the inlet 101 and outlet 102 of the photovoltaic thermal module 100. An angle adjustment device 600 is mounted on the second mobile device 500 and is used to adjust the tilt angle of the first connector 301 and the second connector 302 so that they are parallel to the axis of the inlet 101 and the outlet 102. An extension device 700 is mounted on the angle adjustment device 600 and is used to push the first connector 301 and the second connector 302 in the adjusted direction so that their axis coincides with the axis of the inlet 101 and the outlet 102. The docking device 800 is mounted on the extension device 700 and is used to finally insert the first pair of connectors 301 into the inlet 101 and the second pair of connectors 302 into the outlet 102.

[0033] The working principle is as follows: When the temperature of a photovoltaic thermal module 100 is higher than the upper limit of the ideal operating temperature (e.g., 22℃-27℃) or lower than the lower limit of the ideal operating temperature, the photovoltaic thermal module 100 needs to be adjusted for cooling or heating. The photovoltaic thermal module 100 that needs to be adjusted for temperature is the target module. The first mobile device 400 moves laterally to the location of the target component. At this time, the lateral positions of the first connector 301, the second connector 302, the inlet 101, and the outlet 102 are consistent. The angle adjustment device 600 is adjusted to the same tilt angle as the target component. At this time, the axes of the first pair of connectors 301 and the second pair of connectors 302 are parallel to the axes of the inlet 101 and the outlet 102. The movable frame 501 in the second mobile device 500 moves longitudinally, and the movable frame 501 drives the adjusting frame 601 to move longitudinally together. The extension frame 701 in the extension device 700 extends out, so that the axis of the first pair of connectors 301 coincides with the axis of the inlet 101 and the axis of the second pair of connectors 302 coincides with the axis of the outlet 102. The docking device 800 performs a plugging action, so that the first pair of connectors 301 is plugged into the inlet 101 along the axis, and the second pair of connectors 302 is plugged into the outlet 102 along the axis. After successful docking, the inlet three-way valve 207, the return three-way valve 210, and the inlet pump 208 are opened to enter either cold water cooling mode or hot water heating mode. The cold water cooling mode lowers the temperature of the target component, while the hot water heating mode raises the temperature of the target component until the temperature of the target component returns to normal.

[0034] In the cold water cooling mode: the inlet three-way valve 207 is adjusted to connect the cold water inlet pipe 203 and the inlet pump 208, and the return three-way valve 210 is adjusted to connect the hot water return pipe 206 and the return main pipe 211. The inlet pump 208 draws cold water from the inside of the cold water storage tank 201. The cold water enters the flow channel inside the target component through the cold water inlet pipe 203, the inlet three-way valve 207, the inlet main pipe 209, the first connector 301, and the inlet 101 in sequence. It exchanges heat with the photovoltaic panel in the target component to reduce the temperature of the photovoltaic panel, so that the cold water is heated to hot water. The hot water enters the hot water storage tank 202 through the outlet 102, the second connector 302, the return main pipe 211, the return three-way valve 210, and the hot water return pipe 206 in sequence.

[0035] In hot water heating mode: the inlet three-way valve 207 is adjusted to connect the hot water inlet pipe 205 and the inlet pump 208, and the return three-way valve 210 is adjusted to connect the cold water return pipe 204 and the return main pipe 211. The inlet pump 208 draws hot water from inside the hot water storage tank 202. The hot water enters the flow channel inside the target component through the hot water inlet pipe 205, the inlet three-way valve 207, the inlet main pipe 209, the first connector 301, and the inlet 101 in sequence. It exchanges heat with the photovoltaic panel in the target component to raise the temperature of the photovoltaic panel, so that the hot water is cooled to cold water. The cold water enters the cold water storage tank 201 through the outlet 102, the second connector 302, the return main pipe 211, the return three-way valve 210, and the cold water return pipe 204 in sequence.

[0036] Based on the above working principle, it can be seen that this system has the following advantages: First, this system is divided into a static part and a dynamic part. The static part consists of the photovoltaic thermal module 100; the dynamic part includes a first connector 301, a second connector 302, inlet pipes, outlet pipes, a cold water storage tank 201, a hot water storage tank 202, a first mobile device 400, a second mobile device 500, an angle adjustment device 600, an extension device 700, and a docking device 800. The dynamic and static parts no longer have fixed, permanent pipe connections; instead, the dynamic part can be temporarily and on-demand moved to the designated location of the photovoltaic thermal module 100 and connected to it, without relying on a fixed pipe network. When it is necessary to expand the array of photovoltaic thermal modules 100, only the movement range of the first mobile device 400 needs to be expanded, without the need to re-lay a fixed pipe network, thus improving the flexibility of use.

[0037] Secondly, because the dynamic part can be temporarily and on demand moved to the location of the designated photovoltaic thermal module 100 and connected with it, a one-to-many layout of the dynamic part and the static part can be realized, which can simplify the pipeline network and help reduce the cost of pipeline layout.

[0038] Third, when a photovoltaic thermal module 100 in the photovoltaic thermal module 100 array needs maintenance or replacement, since each photovoltaic thermal module 100 is an independent individual, there is no need to empty and disassemble the entire piping system. Only the specific photovoltaic thermal module 100 needs to be emptied or disassembled, which facilitates maintenance or replacement, improves maintenance convenience, and reduces the impact on the operation of the entire photovoltaic thermal module 100 array.

[0039] Fourth, through the cooperation of the first mobile device 400 (lateral movement) and the second mobile device 500 (vertical movement), the target photovoltaic thermal module 100 can be quickly positioned in a large photovoltaic array. Combined with the angle adjustment device 600, the extension device 700 and the docking device 800, the deviation of the installation position and angle of the photovoltaic thermal module 100 can be accurately compensated, ensuring that the first connector 301 and the second connector 302 are docked with the water inlet 101 and the water outlet 102 on the back side of the photovoltaic thermal module 100 with high precision, avoiding leakage or connection failure caused by misalignment, and improving the reliability of use.

[0040] Fifth, the separate design of the cold water storage tank 201 and the hot water storage tank 202, combined with the regulation of the inlet three-way valve 207, the return three-way valve 210 and the inlet pump 208, allows for flexible selection of injecting cold water to cool down or returning hot water to maintain the temperature according to the actual temperature of the photovoltaic thermal module 100. This enables on-demand temperature regulation of a single photovoltaic thermal module 100, avoiding overheating or overcooling, and improving the power generation efficiency of the photovoltaic panel.

[0041] Sixth, the first mobile device 400, the second mobile device 500, the angle adjustment device 600, the extension device 700, and the docking device 800 are integrated in stages, resulting in a compact structure that is easy to maintain. In particular, it can be adapted to multiple horizontally arranged photovoltaic thermal modules 100, making it easy to expand to large-scale photovoltaic power plant applications.

[0042] Seventh, when the surface of the photovoltaic thermal module 100 is covered with snow, the snow can be melted by adjusting the temperature, which reduces the load on the photovoltaic thermal module 100 and improves the stability and safety of the photovoltaic thermal module 100.

[0043] Furthermore, valves are installed on both the inlet 101 and the outlet 102. After the first connector 301 is inserted into the inlet 101, the valve on the inlet 101 is opened; similarly, after the second connector 302 is inserted into the outlet 102, the valve on the outlet 102 is opened. This design prevents water from flowing out of the photovoltaic thermal module 100 when not connected, thus improving the reliability of the photovoltaic thermal module 100.

[0044] Furthermore, the valves can be one-way valves; the one-way valve on inlet 101 allows water to enter only, and the one-way valve on outlet 102 allows water to exit only. See also Figure 13 Both the first connector 301 and the second connector 302 are equipped with a pressing rod 303, and the bottom periphery of the pressing rod 303 is provided with several through holes 304. When the first connector 301 is inserted into the water inlet 101, the pressing rod 303 on the first connector 301 presses the valve core of the one-way valve on the water inlet 101, causing the one-way valve on the water inlet 101 to open, at which time water can flow into the water inlet 101 through the through holes 304; similarly, when the second connector 302 is inserted into the water outlet 102, the pressing rod 303 on the second connector 302 presses the valve core of the one-way valve on the water outlet 102, causing the one-way valve on the water outlet 102 to open, so as to facilitate water discharge. By using a one-way valve, the safety of water entering and leaving the photovoltaic thermal module 100 can be improved; and the one-way valve can be opened by pressing the valve core of the one-way valve with the pressing rod 303, which is simple and reliable in structure.

[0045] Furthermore, both the cold water storage tank 201 and the hot water storage tank 202 can be insulated to maintain the temperature of the cold and hot water. A heat exchange device (such as a heat exchange coil) can also be installed inside the cold water storage tank 201 to regulate the temperature of the cold water within it. Similarly, a heat exchange device (such as a heat exchange coil) can be installed inside the hot water storage tank 202, or a heating device (such as a heating rod) can be installed inside to regulate the temperature of the hot water within it. This improves the temperature regulation effect on the photovoltaic thermal module 100.

[0046] Example 2: This embodiment 2 illustrates the specific structures of the first mobile device 400, the second mobile device 500, the angle adjustment device 600, the extension device 700, and the docking device 800 in embodiment 1.

[0047] See Figure 5 , Figure 6 , Figure 7 and Figure 8The first mobile device 400 includes a frame 401, wheels 402, a first motor 403, a first transmission assembly 404, a second transmission assembly 405, and a track 406. A cold water tank 201 and a hot water tank 202 are housed inside the frame 401 to facilitate movement of the frame 401 carrying both tanks, thus improving flexibility. A support frame 408 is fixedly mounted on the top of the frame 401, and an inlet three-way valve 207, a return three-way valve 210, and an inlet pump 208 are fixedly mounted on the support frame 408. At least two rows of wheelsets are fixedly mounted on the bottom of the frame 401, each row including at least two wheels 402. The wheels 402 in the same row are connected by a connecting shaft 407 to allow synchronous rotation of the wheels 402 in the same row. The output of the first motor 403 is connected to the input of the reducer. The output of the reducer is driven by the first transmission assembly 404 (such as a sprocket and chain drive structure or a pulley and belt drive structure) to the connecting shaft 407 of one row of wheels. The connecting shafts 407 of two adjacent rows of wheels are linked by the second transmission assembly 405 (such as a sprocket and chain drive structure or a pulley and belt drive structure). The wheels 402 cooperate with the pre-set track 406 on the site to achieve lateral guidance.

[0048] See Figure 5 , Figure 6 , Figure 9 and Figure 10 The second mobile device 500 includes a mobile frame 501, a first lead screw 502, a first rotating shaft 503, a second motor 504, and a first nut 505. A slide rail is fixedly mounted on the bottom of the mobile frame 501, and a slider is fixedly mounted on the top of the frame 401. The slide rail slides longitudinally with the slider. The bottom of the mobile frame 501 has a first rotating shaft 503 and two first lead screws 502. Both ends of the first rotating shaft 503 are connected to the first lead screws 502 via commutators (such as bevel gearboxes). The commutators are fixedly mounted on the bottom of the mobile frame 501. The end of the first lead screw 502 furthest from the commutator is mounted on the bottom of the mobile frame 501 via a bearing seat. The first lead screw 502 engages with the first nut 505 fixed to the top of the frame 401. The second motor 504 is fixedly mounted on the mobile frame 501, and its output end is connected to the commutator at one end of the first rotating shaft 503. The second motor 504 drives the first rotating shaft 503 to rotate. The first rotating shaft 503 drives the two first lead screws 502 to rotate through the commutator 506. Then, through the threaded engagement between the first lead screws 502 and the first nut 505, the moving frame 501 is driven to move longitudinally.

[0049] See Figure 9 and Figure 10The angle adjustment device 600 includes an adjustment frame 601 and an adjustment telescopic component 602 (such as an electric push rod or a hydraulic cylinder). The lower part of the adjustment frame 601 is rotatably connected to the movable frame 501 via a hinge shaft. The upper part of the adjustment frame 601 is hinged to the output end of the adjustment telescopic component 602, and the bottom of the adjustment telescopic component 602 is hinged to the movable frame 501. By adjusting the extension and retraction of the telescopic component 602, the tilt angle of the adjustment frame 601 can be changed to match the back tilt angle of the photovoltaic thermal module 100.

[0050] See Figure 5 , Figure 6 , Figure 11 and Figure 12 The extension device 700 includes an extension frame 701, a second lead screw 702, a second rotating shaft 703, a third motor 704, and a second nut 705. A slide rail is fixedly mounted on the bottom of the extension frame 701, and a slider is fixedly mounted on the top surface of the adjusting frame 601. The slide rail slides along the inclined direction of the adjusting frame 601 with the slider. The bottom of the extension frame 701 has a second rotating shaft 703 and two second lead screws 702. Both ends of the second rotating shaft 703 are connected to the second lead screws 702 via commutators, which are fixedly mounted on the bottom of the extension frame 701. The end of the second lead screw 702 furthest from the commutator is mounted on the bottom of the extension frame 701 via a bearing seat. The second lead screw 702 engages with the second nut 705 fixed on the adjusting frame 601. The third motor 704 is fixedly mounted on the extension frame 701, and its output end is connected to the commutator at one end of the second rotating shaft 703. The third motor 704 drives the second rotating shaft 703 to rotate. The second rotating shaft 703 drives the two second lead screws 702 to rotate through the commutator, thereby pushing the extension frame 701 to extend or retract along the tilt direction of the adjustment frame 601.

[0051] The second moving device 500 uses two first lead screws 502, and the extension device 700 uses two second lead screws 702. The two first lead screws 502 are symmetrically arranged on both sides of the bottom of the moving frame 501, and the two second lead screws 702 are symmetrically arranged on both sides of the bottom of the extension frame 701, providing symmetrical and balanced driving force. This effectively prevents the moving frame 501 and the extension frame 701 from deflecting or twisting during movement, thereby reducing frictional resistance and ensuring a smooth and uninterrupted movement.

[0052] See Figure 11 and Figure 12The docking device 800 includes a docking frame 801 and a docking telescopic component 802 (such as an electric push rod). A first connector 301 and a second connector 302 are fixedly mounted on the docking frame 801. The docking frame 801 is connected to the output end of the docking telescopic component 802, which is fixed to an extension frame 701. The docking telescopic component 802 can push the docking frame 801 to move linearly along the docking direction, realizing the insertion action of the first connector 301 with the inlet 101 and the second connector 302 with the outlet 102.

[0053] Example 3: Based on Example 2, Example 3 further includes a host computer and a sensor system to achieve fully automatic control.

[0054] See Figure 3 and Figure 4 The photovoltaic thermal module 100 is equipped with a temperature measuring element (such as a thermocouple), a positioning element 103 (such as a GPS or QR code marker), a first positioning detection element 104 (such as a proximity switch or photoelectric sensor), and a second positioning detection element 105 (such as a pressure sensor or micro switch).

[0055] The temperature sensing element is used to detect the temperature of the photovoltaic thermal module 100 and upload the data to the host computer. The positioning element 103 provides the position information of the photovoltaic thermal module 100. The first positioning detection element 104 detects whether the first moving device 400 has moved into position. The second positioning detection element 105 detects whether the first connector 301 and the water inlet 101, and the second connector 302 and the water outlet 102 are properly connected.

[0056] When using a photoelectric sensor as the first position detection element 104, the photoelectric sensor is a specular reflective type. The specular reflective type photoelectric sensor integrates a transmitter and receiver, and achieves optical path closure detection through a reflector. See [link to relevant documentation] for details. Figure 8 The reflector 409 is fixedly mounted on the frame 401 in the first mobile device 400. Only when the frame 401 carries the reflector 409 to a position opposite to the mirror-reflective photoelectric sensor can the light be accurately reflected back to the mirror-reflective photoelectric sensor, at which point the first mobile device 400 moves into place.

[0057] When using a pressure sensor or micro switch as the second position detection element 105, see [reference needed]. Figure 12 A trigger frame 803 is fixedly installed on the docking frame 801 in the docking device 800. When the trigger frame 803 presses the pressure sensor or micro switch, the docking telescopic component 802 drives the first pair of connectors 301 on the docking frame 801 to be inserted into the water inlet 101 and the second pair of connectors 302 to be inserted into the water outlet 102.

[0058] See Figure 2 , Figure 5 and Figure 6 The extension frame 701 in the extension device 700 has a first ranging element 706 (such as a laser ranging sensor), a second ranging element 707 (such as a laser ranging sensor), and a third ranging element 708 (such as a laser ranging sensor) fixedly mounted on its top surface. In a direction perpendicular to the top surface of the extension frame 701, the first ranging element 706 and the second ranging element 707 measure the length of the distance from the back of the photovoltaic thermal module 100. See also... Figure 2 A distance measuring frame 106 is installed on the photovoltaic thermal module 100. In a direction parallel to the top surface of the extension frame 701 (i.e., the extension direction of the extension frame 701), the third distance measuring element 708 measures the length of the distance measuring frame 106.

[0059] The host computer receives information from the temperature measuring element, positioning element 103, first positioning detection element 104, second positioning detection element 105, first ranging element 706, second ranging element 707 and third ranging element 708, and controls the operation of the first mobile device 400, second mobile device 500, angle adjustment device 600, extension device 700, docking device 800, inlet three-way valve 207, return three-way valve 210 and inlet pump 208.

[0060] The control process is as follows: When the temperature of a photovoltaic thermal module 100 is higher than the upper limit of a set threshold (e.g., 22℃-27℃) or lower than the lower limit of a set threshold, the photovoltaic thermal module 100 needs to be adjusted for cooling or heating. The photovoltaic thermal module 100 whose temperature needs to be adjusted is the target module. The host computer controls the first mobile device 400 to move laterally to the vicinity of the target component based on the positioning information of the target component; when the first positioning detection element 104 feedbacks that the target component is in position, the host computer controls the first mobile device 400 to stop moving. At this time, the lateral positions of the first connector 301, the second connector 302, the inlet 101 and the outlet 102 are consistent. Next, the host computer controls the first ranging element 706 and the second ranging element 707 to detect whether the distances are consistent. If they are inconsistent, the host computer controls the angle adjustment device 600 to adjust the tilt angle of the adjustment frame 601 until they are consistent. When they are consistent, the tilt angle of the adjustment frame 601 is consistent with the target component, and the axes of the first connector 301 and the second connector 302 are parallel to the axes of the inlet 101 and the outlet 102. Then, the host computer controls the first ranging element 706 or the second ranging element 707 to detect whether the distance has reached the first set value (e.g., 200mm). If it has not been reached, the host computer controls the moving frame 501 in the second mobile device 500 to move longitudinally. The moving frame 501 drives the adjusting frame 601 to move longitudinally together until the target is met. When the target is met, the third ranging element 708 can correspond to the ranging frame 106. Then the host computer controls the third ranging element 708 to detect whether the distance has reached the second set value (e.g., 300mm); if it has not reached the set value, the host computer controls the extension frame 701 in the extension device 700 to extend until the target is reached; when the target is reached, the axis of the first pair of connectors 301 coincides with the axis of the inlet 101, and the axis of the second pair of connectors 302 coincides with the axis of the outlet 102. Subsequently, the host computer controls the docking telescopic component 802 to perform the insertion action, so that the first pair of connectors 301 is inserted into the water inlet 101 along the axis, and the second pair of connectors 302 is inserted into the water outlet 102 along the axis. During this insertion process, the trigger frame 803 gradually approaches the second positioning detection element 105. After the second detection element 105 reports successful docking, the host computer controls the inlet three-way valve 207, the return three-way valve 210, and the inlet pump 208 to open. Depending on the temperature requirements, either the cold water cooling mode or the hot water heating mode can be selected. The cold water cooling mode can lower the temperature of the target component, while the hot water heating mode can raise the temperature of the target component until the temperature of the target component returns to normal.

[0061] Based on the above control process, it can be seen that Embodiment 3 has the following advantages: By integrating and controlling various sensors (temperature measuring element, positioning element 103, first positioning detection element 104, second positioning detection element 105, first ranging element 706, second ranging element 707 and third ranging element 708) and actuators (first mobile device 400, second mobile device 500, angle adjustment device 600, extension device 700, docking device 800, inlet three-way valve 207, return three-way valve 210 and inlet pump 208) through a host computer, fully automatic identification, positioning, docking and temperature control can be achieved without manual intervention, which can reduce operation and maintenance costs and improve system response speed and reliability.

[0062] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A temperature regulating system for photovoltaic power generation, comprising a photovoltaic photo-thermal assembly, a cold water storage tank and a hot water storage tank, the back side of the photovoltaic photo-thermal assembly is provided with a water inlet and a water outlet, characterized in that, The application further comprises a first connector, a second connector, a first moving device, a second moving device, an angle adjusting device, an extending device and a connecting device; The first connector and the second connector are arranged on the connecting device, the cold water tank and the hot water tank are connected with the first connector through the water inlet pipeline, and the cold water tank and the hot water tank are connected with the second connector through the water return pipeline; The first moving device is used to drive the first connector and the second connector to move in the transverse direction; The second moving device is arranged on the first moving device, and the second moving device is used to drive the first connector and the second connector to move in the longitudinal direction; The angle adjusting mechanism is arranged on the second moving device, and the angle adjusting mechanism is used to adjust the first connector and the second connector to be parallel to the water inlet and the water outlet; The extending device is arranged on the angle adjusting device, and the extending device is used to adjust the first connector and the second connector to be respectively coincident with the axis of the water inlet and the water outlet; The connecting device is arranged on the extending device, and the connecting device is used to insert the first connector into the water inlet and the second connector into the water outlet.

2. A temperature regulating system for photovoltaic power generation as claimed in claim 1, wherein, The water inlet pipeline comprises a cold water inlet pipe, a hot water inlet pipe, a water inlet three-way valve, a water inlet pump and a water inlet main pipe; the first end of the cold water inlet pipe is connected with the cold water tank; the first end of the hot water inlet pipe is connected with the hot water tank; the second end of the cold water inlet pipe and the second end of the hot water inlet pipe are respectively connected to two interfaces of the water inlet three-way valve, the third interface of the water inlet three-way valve is connected with the water inlet pump, and the water inlet pump is connected with the first connector through the water inlet main pipe; The water return pipeline comprises a cold water return pipe, a hot water return pipe, a water return three-way valve and a water return main pipe; the first end of the cold water return pipe is connected with the cold water tank; the first end of the hot water return pipe is connected with the hot water tank; the second end of the cold water return pipe and the second end of the hot water return pipe are respectively connected to two interfaces of the water return three-way valve, and the third interface of the water return three-way valve is connected with the second connector through the water return main pipe.

3. A temperature regulating system for photovoltaic power generation as claimed in claim 2, wherein, The application further comprises a host computer; The photovoltaic and photo-thermal assembly is provided with a temperature measuring element, a positioning element, a first position detection element and a second position detection element; the temperature measuring element is used to detect the temperature of the photovoltaic and photo-thermal assembly and transmit the temperature information to the host computer; the positioning element is used to transmit the position information of the photovoltaic and photo-thermal assembly to the host computer; the first position detection element is used to detect whether the first moving device is moved to the position and transmit the position information to the host computer; and the second position detection element is used to detect whether the second connector and the first connector are respectively inserted into the water outlet and the water inlet to the position and transmit the position information to the host computer; The extending device is provided with a first distance measuring element, a second distance measuring element and a third distance measuring element; in the vertical direction of the extending device, the first distance measuring element and the second distance measuring element are used to measure the distance from the photovoltaic and photo-thermal assembly and transmit the distance information to the host computer; and in the extending direction of the extending device, the third distance measuring element is used to measure the distance from the photovoltaic and photo-thermal assembly and transmit the distance information to the host computer; The upper computer is used for controlling the first mobile device, the second mobile device, the angle adjusting device, the extending device, the docking device, the water inlet three-way valve, the water return three-way valve and the water inlet pump.

4. A temperature regulating system for photovoltaic power generation as claimed in claim 2 or 3, wherein, The first mobile device is internally provided with the cold water storage tank and the hot water storage tank, and the upper part of the first mobile device is provided with the water inlet three-way valve, the water return three-way valve and the water inlet pump.

5. A temperature regulating system for photovoltaic power generation as claimed in claim 4, wherein, The first mobile device comprises a frame, wheels, a first motor, a first transmission assembly, a second transmission assembly and a track, the frame is internally provided with the cold water storage tank and the hot water storage tank, the top of the frame is provided with the supporting frame, and the bottom of the frame is provided with at least two rows of wheel groups, each row of wheel groups comprises at least two wheels, the wheels in each row of wheel groups are connected through a connecting shaft, the first motor is arranged on the frame, the first motor is connected with the connecting shaft in one row of wheel groups through the first transmission assembly, the connecting shafts in adjacent two rows of wheel groups are connected through the second transmission assembly, and the wheels are matched with the track.

6. A temperature regulating system for photovoltaic power generation as claimed in claim 5 wherein, The second mobile device comprises a moving frame, a first screw rod, a first rotating shaft, a second motor and a first nut, the moving frame is longitudinally and slidably connected with the top of the frame, the bottom of the moving frame is rotatably connected with the first rotating shaft and two first screw rods, the two ends of the first rotating shaft are connected with the first screw rods through reversers, the axial direction of the first rotating shaft is perpendicular to the axial direction of the first screw rods, the second motor is arranged on the moving frame, the output end of the second motor is connected with the reverser at one end of the first rotating shaft, the first screw rods are matched with the first nut, and the first nut is arranged on the top of the frame.

7. A temperature regulating system for photovoltaic power generation as claimed in claim 6, wherein, The angle adjusting device comprises an adjusting frame and an adjusting telescopic member, the adjusting frame is arranged in an inclined manner, the lower part of the adjusting frame is hingedly connected with the moving frame, and the upper part of the adjusting frame is hingedly connected with the output end of the adjusting telescopic member.

8. A temperature regulating system for photovoltaic power generation as claimed in claim 7, wherein, The extending device comprises an extending frame, a second screw rod, a second rotating shaft, a third motor and a second nut, the extending frame is slidably connected with the adjusting frame along the inclined direction of the adjusting frame, the bottom of the extending frame is rotatably connected with the second rotating shaft and two second screw rods, the two ends of the second rotating shaft are connected with the second screw rods through reversers, the axial direction of the second rotating shaft is perpendicular to the axial direction of the second screw rods, the third motor is arranged on the extending frame, the output end of the third motor is connected with the reverser at one end of the second rotating shaft, the second screw rods are provided with the second nut, and the second nut is arranged on the adjusting frame.

9. A temperature regulating system for photovoltaic power generation as claimed in claim 8, wherein, The docking device comprises a docking frame and a docking telescopic member, the first docking head and the second docking head are arranged on the docking frame, the docking frame is connected with the output end of the docking telescopic member, and the docking telescopic member is arranged on the extending frame.

10. The photovoltaic power generation temperature regulating system of claim 1, wherein, The photovoltaic and photo-thermal assembly is provided with a plurality of assemblies in the transverse direction.

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