Photovoltaic power generation system for roof, multifunctional photovoltaic panel and use method of multifunctional photovoltaic panel

Abstract

The invention discloses a photovoltaic power generation system used for a roof, a multifunctional photovoltaic panel and a use method thereof, and relates to the technical field of photovoltaic power generation, the photovoltaic power generation system comprises a photovoltaic panel system and a water supply system, the photovoltaic panel system realizes multiple functions of fire protection, cooling, hail protection and ash removal through a turnover water passing shell and a water spraying pipe, and the water passing shell and the water spraying pipe are connected with the photovoltaic panel system. The safety and the efficiency of the system are obviously improved; when a fire occurs at the bottom of the photovoltaic panel main body, the water through shell and the water spray pipe can quickly spray water to extinguish fire; when the surface temperature of the photovoltaic panel main body is too high, the water spray pipe can spray water for cooling to ensure that the power generation efficiency is not influenced by high temperature; when natural disasters such as hail are encountered, the photovoltaic panel can be prevented from being damaged by the water through shell; meanwhile, the water spraying pipe can spray water to the surface of the photovoltaic panel body to remove dust, and dust accumulation is prevented from affecting the power generation efficiency; the turnover design of the water passing shell occupies a small space, other function mechanisms do not need to be additionally arranged, the occupied space is further reduced, and the water passing shell is suitable for being used in narrow installation areas such as roofs.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and particularly relates to a photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a using method thereof. Background Art

[0002] A photovoltaic power generation system is a clean energy technology that uses solar energy for power generation. Its core is to directly convert solar energy into electrical energy through photovoltaic modules (solar panels); this system has the characteristics of environmental protection, low carbon, high efficiency and unlimited resources, and is widely used in households, commercial, industrial and power grid systems. However, during the use of a photovoltaic power generation system, fires may be caused by electrical faults (such as short circuits or overloads in junction boxes), hot spot effects (such as partial dust, leaves or shadows covering the photovoltaic panel, causing the shaded solar cells to heat up, forming a hot spot with a temperature exceeding 100 °C, igniting the backplane material or surrounding combustibles), equipment quality problems (such as the diode in the junction box failing due to overheating), and improper installation and maintenance (such as loose cable connections, poor sealing of junction boxes), etc.; with the wide application of photovoltaic systems, the number of fire incidents is also gradually increasing; for example, between 2012 and 2018, Germany reported approximately 350 photovoltaic system fires; between 2012 and 2020, Japan reported approximately 200 photovoltaic system fires.

[0003] When a photovoltaic panel catches fire, if the fire is not extinguished in time, the fire will quickly spread to adjacent photovoltaic panels, increasing the difficulty of extinguishing the fire and property losses; the current photovoltaic systems cannot quickly extinguish the fire in the initial stage of the fire, nor can they effectively isolate the burning photovoltaic panel from adjacent photovoltaic panels, resulting in the rapid spread of the fire; in addition, too high a temperature of the photovoltaic panel will affect the power generation efficiency, and bad weather such as hail is also likely to damage the photovoltaic panel; the existing photovoltaic panel has a simple structure and cannot solve the above problems at the same time; therefore, in view of these problems, a photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a using method thereof are proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a using method thereof to solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a method for using the same, comprising a photovoltaic panel system and a water supply system. The water inlet end of the photovoltaic panel system is communicated with the water supply system. The two ends of the photovoltaic panel system are respectively fixedly connected with a first support seat and a second support seat. Fixing systems are arranged at one ends of the first support seat and the second support seat. A locking system is arranged at one end of the first support seat. One end of the photovoltaic panel system is fixedly connected with a junction box, a smoke sensor and a temperature sensor. One end of the junction box is fixedly connected with a second wire. The other end of the second wire is connected with a separation system. One end of the separation system is connected with a first wire, and the first wire is connected with an external device. A storage battery is arranged at one end of the water supply system. The tail end of the photovoltaic panel system is fixedly connected with a controller.

[0007] Preferably, the water supply system includes a water storage tank. A water pump is fixedly connected to one end of the water storage tank. The outlet end of the water pump is communicated with a water supply pipe, and the water supply pipe is communicated with the photovoltaic panel system. A water return pipe is fixedly connected to the top end of the water storage tank, and the water return pipe is communicated with the photovoltaic panel system. A first solenoid valve is communicated with the outer side of the water return pipe. A filter screen is fixedly connected to the end of the water return pipe. An inlet pipe is fixedly connected to one end of the water storage tank, and the inlet pipe is communicated with an external water source. A second solenoid valve is communicated with the outer side of the inlet pipe.

[0008] Preferably, the fixing system includes a first telescopic electromagnet fixedly connected to both the first support seat and the second support seat. The other end of the first telescopic electromagnet is fixedly connected with a clamping block, and the clamping block is fixedly connected with the photovoltaic panel system.

[0009] Preferably, the locking system includes a second telescopic electromagnet fixedly connected to the first support seat. The other end of the second telescopic electromagnet is fixedly connected with a clamping seat, and the clamping seat is engaged with the photovoltaic panel system.

[0010] Preferably, the separation system includes a side plate fixedly connected to the second wire. A connection shell is placed at one end of the side plate. A first wire is fixedly connected to the inner side of the connection shell. One end of the first wire is fixedly connected with an insertion cylinder, and the insertion cylinder is fixedly connected with the connection shell. One end of the second wire is fixedly connected with a plug, and the plug is fixedly connected with the side plate. The plug is inserted into the inner side of the insertion cylinder. A spring is fixedly connected to the inner side of the connection shell, and the other end of the spring is fixedly connected with the side plate. A third telescopic electromagnet is fixedly connected to the inner side of the top end of the connection shell. A clamping rod is fixedly connected to the top end of the third telescopic electromagnet, and both ends of the clamping rod are engaged with the side plate and the connection shell respectively.

[0011] Preferably, the photovoltaic panel system includes a frame, which is fixedly connected to a controller. The inner side of the frame is fixedly connected with a photovoltaic panel main body, and the photovoltaic panel main body is fixedly connected to a junction box, a smoke sensor and a temperature sensor. Card slots are provided at the four corners of the frame, and a clamping block is engaged with the frame through the card slot. A water passing shell is arranged below the photovoltaic panel main body. A water spraying pipe is fixedly connected to the inner side of the water passing shell. Flipping components are fixedly connected to both ends of the water passing shell, and one end of the flipping component is fixedly connected to a second support seat. A crushing component is fixedly connected to the bottom end of the water passing shell. The bottom of the water passing shell is hollow and forms a chamber. The water supply pipe is communicated with the chamber. The end of the water return pipe passes through the chamber and is communicated with the water passing shell. The water spraying pipe is communicated with the chamber.

[0012] Preferably, the flipping component includes connecting bars fixedly connected to both ends of the water passing shell. One end of the connecting bar is fixedly connected with a guide rail and a protective cover, and the guide rail and the protective cover are fixedly connected. A cross bar is fixedly connected between adjacent guide rails. The outer sides of the guide rail and the protective cover are both slidably connected with a limit seat. The top end of the limit seat is fixedly connected with a fixing plate. One end of the fixing plate is fixedly connected with a second motor. The end of the main shaft of the second motor is fixedly connected with a gear. One end of the gear is engaged with a rack, and the rack is fixedly connected with the guide rail. One end of the limit seat is fixedly connected with a first motor through a main shaft. One end of the shell of the first motor is fixedly connected with a diagonal support plate, and the diagonal support plate is fixedly connected with the second support seat.

[0013] Preferably, the crushing component includes a buffer pad fixedly connected to the bottom of the water passing shell. One end of the buffer pad is fixedly connected with crushing rods arranged in a crisscross manner.

[0014] Preferably, dust-blocking hairs are fixedly connected to the opening of the protective cover.

[0015] Preferably, S1: When the smoke sensor detects smoke, the smoke sensor controls the water supply system to supply water to the inside of the water passing shell through the controller. At the same time, the fixing system and the separation system also work together.

[0016] S2: Then the water passing shell will spray water to extinguish the fire through the water spraying pipe.

[0017] S3: When the temperature sensor detects that the temperature of the photovoltaic panel main body is abnormally higher than the set threshold, the temperature sensor controls the water supply system to supply water to the inside of the photovoltaic panel system through the controller.

[0018] S4: Then the water passing shell will spray water to cool down through the water spraying pipe.

[0019] S5: When encountering hail weather, the staff controls the photovoltaic panel system to work through a mobile phone terminal or a computer terminal, so that the water passing shell inside the photovoltaic panel system automatically flips to the upper side of the photovoltaic panel main body.

[0020] S6: When it is necessary to clean the dust on the surface of the main body of the photovoltaic panel, the staff controls the operation of the photovoltaic panel system through the mobile phone terminal or the computer terminal, so that the water passing shell inside the photovoltaic panel system automatically flips above the main body of the photovoltaic panel;

[0021] S7: Control the water supply system to supply water to the inside of the water passing shell;

[0022] S8: Then the water passing shell will spray water through the water spray pipe to wash the dust on the surface of the main body of the photovoltaic panel.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. A photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and its use method, which are provided with a photovoltaic panel system. Through the rotatable water passing shell and the water spray pipe, the functions of fire protection, cooling, hail protection and dust cleaning are realized, significantly improving the safety and efficiency of the system; when a fire occurs near the junction box at the bottom of the main body of the photovoltaic panel, the water passing shell and the water spray pipe can quickly spray water to extinguish the fire, control the fire in time at the initial stage of the fire, and reduce property losses; when the surface temperature of the main body of the photovoltaic panel is too high, the water spray pipe can spray water to cool down, so that the surface temperature of the main body of the photovoltaic panel is kept within a reasonable range, ensuring that the power generation efficiency is not affected by high temperature; when natural disasters such as hail are encountered, the water passing shell can first rotate to the vertical state and then flip above the main body of the photovoltaic panel to form a protective layer, effectively resisting hail and preventing the main body of the photovoltaic panel from being damaged; at the same time, the water spray pipe can also spray water on the surface of the main body of the photovoltaic panel to clean the dust, avoiding the influence of dust accumulation on the power generation efficiency; the flip design of the water passing shell occupies a small space and does not require additional functional mechanisms to be set, making the overall structure more compact, further reducing the space occupation, and is suitable for use in narrow installation areas such as roofs.

[0025] 2. A photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and its use method, which are provided with a fixing system. During the normal operation of the main body of the photovoltaic panel, the clamping block plays a role in limiting and fixing the main body of the photovoltaic panel to ensure its stable operation. Once a fire breaks out near the main body of the photovoltaic panel, the clamping block can quickly and automatically release the limit on the main body of the photovoltaic panel. At this time, under the action of gravity, the main body of the photovoltaic panel will fall into the inside of the water passing shell. Immediately afterwards, the water passing shell is quickly filled with water to completely immerse the main body of the photovoltaic panel in it. This ingenious design enables the photovoltaic panel main body on fire to be completely separated from other normal photovoltaic panel main bodies, forming an effective fire prevention isolation belt, completely eliminating the possibility of the fire spreading to the surrounding photovoltaic panel main bodies. At the same time, the photovoltaic panel main body completely immersed in water can make full use of the cooling and asphyxiating effects of water, greatly improving the fire extinguishing efficiency and effect, and providing a strong guarantee for the safe and stable operation of the photovoltaic system.

[0026] 3. A photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a method for using the same, which are provided with a locking system. After the water-passing shell is flipped to a proper position, the clamping seat is tightly engaged with the protective cover and the guide rail to realize the locking and limiting of the water-passing shell, ensuring its stability and reliability during operation.

[0027] 4. A photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a method for using the same, which are provided with a separation system. When a fire breaks out at the bottom of the photovoltaic panel main body, the first wire and the second wire can be quickly separated to cut off the circuit, so as to ensure that the photovoltaic panel main body can smoothly fall into the inner side of the water-passing shell. At the same time, it can prevent the fire from spreading through the circuit, improve the fire extinguishing efficiency and minimize property losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Figure 1 It is a schematic diagram of the overall structure of a photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a method for using the same according to the present invention.

[0030] Figure 2 It is a schematic diagram of the installation structure of the junction box of a photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a method for using the same according to the present invention.

[0031] Figure 3 It is a schematic diagram of the installation structure of the filter screen of a photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a method for using the same according to the present invention.

[0032] Figure 4 It is a schematic diagram of the installation structure when the water-passing shell of a photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a method for using the same moves vertically upward.

[0033] Figure 5 It is a schematic diagram of the upward view installation structure of the crushing rod of a photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a method for using the same according to the present invention.

[0034] Figure 6 It is a schematic diagram of the installation structure of the card slot of a photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a method for using the same according to the present invention.

[0035] Figure 7 It is a schematic diagram of the installation structure of the connecting strip of a photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a method for using the same according to the present invention.

[0036] Figure 8 This is a schematic installation structure diagram of the dust-blocking wool for a photovoltaic power generation system, a multifunctional photovoltaic panel and its usage method for a roof in the present invention.

[0037] Figure 9 This is a schematic internal installation structure diagram of the protective cover for a photovoltaic power generation system, a multifunctional photovoltaic panel and its usage method for a roof in the present invention.

[0038] Figure 10 This is a schematic installation structure diagram of the first telescopic electromagnet for a photovoltaic power generation system, a multifunctional photovoltaic panel and its usage method for a roof in the present invention.

[0039] Figure 11 This is a schematic internal installation structure diagram of the connection shell for a photovoltaic power generation system, a multifunctional photovoltaic panel and its usage method for a roof in the present invention.

[0040] In the figure: 1. Water supply system; 101. Water storage tank; 102. Water pump; 103. Water supply pipe; 104. Return pipe; 105. First solenoid valve; 106. Inlet pipe; 107. Second solenoid valve; 108. Filter screen;

[0041] 2. Photovoltaic panel system; 201. Frame; 202. Photovoltaic panel main body; 203. Water passing shell; 204. Water spraying pipe; 205. Guide rail; 206. Rack; 207. Limit seat; 208. First motor; 209. Fixed plate; 210. Second motor; 211. Gear; 212. Protective cover; 213. Connection strip; 214. Dust-blocking wool; 215. Inclined support plate; 216. Cross bar; 217. Crushing rod; 218. Buffer pad; 219. Card slot;

[0042] 3. First support seat; 4. Second support seat;

[0043] 5. Fixing system; 501. First telescopic electromagnet; 502. Clamping block;

[0044] 6. Locking system; 601. Second telescopic electromagnet; 602. Clamping seat;

[0045] 7. Separation system; 701. Insertion cylinder; 702. Plug; 703. Spring; 704. Connection shell; 705. Third telescopic electromagnet; 706. Clamping rod; 707. Side plate.

[0046] 8. First wire; 9. Junction box; 10. Second wire; 11. Smoke sensor; 12. Temperature sensor; 13. Battery; 14. Controller. Specific implementation manners

[0047] The present invention will be further described below in conjunction with specific embodiments. Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams rather than physical drawings, and should not be construed as limiting the present invention. To better illustrate the specific embodiments of the present invention, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0048] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, in the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance. The present invention will be further described below in conjunction with specific embodiments.

[0049] Embodiment

[0050] As Figures 1-11As shown in the figure, a photovoltaic power generation system for a roof, a multifunctional photovoltaic panel and a method for using the same are provided, which include a photovoltaic panel system 2 and a water supply system 1. The water inlet end of the photovoltaic panel system 2 is connected to the water supply system 1. The two ends of the photovoltaic panel system 2 are respectively fixedly connected to a first support base 3 and a second support base 4. Fixing systems 5 are provided at one ends of the first support base 3 and the second support base 4. A locking system 6 is provided at one end of the first support base 3. A junction box 9, a smoke sensor 11 and a temperature sensor 12 are fixedly connected to one end of the photovoltaic panel system 2. The junction box 9, the smoke sensor 11 and the temperature sensor 12 are all waterproofed. For example, epoxy resin or polyurethane glue is potted at the interfaces and gaps to ensure complete sealing. A second wire 10 is fixedly connected to one end of the junction box 9. The other end of the second wire 10 is connected to a separation system 7. One end of the separation system 7 is connected to a first wire 8, and the first wire 8 is connected to an external device. A storage battery 13 is provided at one end of the water supply system 1. The storage battery 13 can be used as a backup power source for this power generation system to supply power to the electrical appliances of this power generation system. A controller 14 is fixedly connected to the tail end of the photovoltaic panel system 2. The smoke sensor 11 detects the smoke concentration, usually in ppm (parts per million). In the roof photovoltaic system, in order to respond in time at the initial stage of a fire, the alarm threshold of the general smoke sensor is set at 5 - 20 ppm. When the smoke concentration reaches this range, the alarm is triggered and the fire extinguishing process is started to prevent the fire from spreading. However, if there is often smoke interference in the surrounding environment, such as there are factories or road dust is large around, in order to reduce false alarms, the threshold may be appropriately increased to 10 - 30 ppm; the temperature sensor 12 monitors the temperature of the photovoltaic panel main body 202, in °C. Under normal circumstances, when the photovoltaic panel main body 202 is working, the power generation efficiency is relatively stable when the temperature is between 25°C and 45°C. When the temperature exceeds 60°C, the power generation efficiency will decrease significantly. To prevent performance problems and potential fire risks caused by high temperature, the alarm threshold of the temperature sensor can be set at 55°C - 65°C. Once the temperature reaches this range, the system starts to spray water for cooling to ensure that the photovoltaic panel main body 202 is at a suitable working temperature; at the same time, the smoke sensor 11 and the temperature sensor 12 are connected to the input ports of the controller 14, and the signals of the smoke sensor 11 and the temperature sensor 12 are read in real time through the controller 14. At the same time, the controller 14 is built-in with a Wi-Fi module, which supports connecting to a mobile terminal or a computer terminal through a wireless network. Users can remotely monitor and control the operating status of the photovoltaic panel system 2 through a mobile phone APP or computer software.

[0051] As a further improvement of the present invention, as Figure 1 , Figure 2 , Figure 3 and Figure 5As shown in the figure, the water supply system 1 includes a water storage tank 101. One end of the water storage tank 101 is fixedly connected to a water pump 102. The outlet end of the water pump 102 is communicated with a water supply pipe 103, and the water supply pipe 103 is communicated with the photovoltaic panel system 2. The top end of the water storage tank 101 is fixedly connected to a water return pipe 104, and the water return pipe 104 is communicated with the photovoltaic panel system 2. The water supply pipe 103 and the water return pipe 104 are made of nylon pipes. The nylon pipes have both certain flexibility and rigidity. They can be bent moderately when the water passing shell 203 flips, and can also maintain a certain shape stability to ensure the smooth flow of water. Moreover, the nylon material has a small density and is light in weight, and will not cause a great impact on the flipping of the water passing shell 203. At the same time, the nylon pipe has good wear resistance. During the flipping process of the water passing shell 203, the friction with other components is not likely to cause pipeline damage, and it can also resist the wear of external factors such as hail to a certain extent. In addition to nylon pipes, metal bellows can also be used, which can be selected according to actual needs. At the same time, a sufficient length of the water supply pipe 103 and the water return pipe 104 is left between the water storage tank 101 and the water passing shell 203 to ensure that the water supply pipe 103 and the water return pipe 104 will not affect the rotation of the water passing shell 203. The outside of the water return pipe 104 is communicated with a first solenoid valve 105, and the end of the water return pipe 104 is fixedly connected to a filter screen 108. The filter screen 108 can filter rainwater and the circulating water for heat dissipation and fire extinguishing. One end of the water storage tank 101 is fixedly connected to a water inlet pipe 106, and the water inlet pipe 106 is communicated with an external water source. The outside of the water inlet pipe 106 is communicated with a second solenoid valve 107; The water stored inside the water storage tank 101 is used for heat dissipation, fire extinguishing and cleaning. Its water source can be supplied by an external water source, or rainwater can be collected through the water return pipe 104 and flow into the water storage tank 101. In addition, a water level alarm is installed in the water storage tank 101. When the water level is insufficient, the external water source is automatically started to replenish water through the water inlet pipe 106.

[0052] As a further improvement of the present invention, as Figure 10As shown in the figure, the fixing system 5 includes a first telescopic electromagnet 501 fixedly connected to both the first support base 3 and the second support base 4. The other end of the first telescopic electromagnet 501 is fixedly connected with a clamping block 502, and the clamping block 502 is fixedly connected with the photovoltaic panel system 2. During the normal operation of the photovoltaic panel main body 202, the first telescopic electromagnet 501 is not energized. At this time, the clamping block 502 is engaged with the frame 201 through the clamping groove 219. The clamping block 502 plays a role in limiting and fixing the photovoltaic panel main body 202, ensuring its stable operation. Once a fire breaks out near the photovoltaic panel main body 202, the first telescopic electromagnet 501 is energized, and the clamping block 502 can quickly and automatically release the limit on the frame 201 and the photovoltaic panel main body 202. At this time, under the action of gravity, the photovoltaic panel main body 202 will fall into the inner side of the water passing shell 203. Immediately afterwards, the water passing shell 203 is quickly filled with water, completely submerging the photovoltaic panel main body 202. This ingenious design enables the photovoltaic panel main body 202 where the fire occurs to be completely separated from other normal photovoltaic panel main bodies 202, forming an effective fire prevention isolation belt, fundamentally eliminating the possibility of the fire spreading to the surrounding photovoltaic panel main bodies 202. At the same time, the photovoltaic panel main body 202 completely submerged in water can make full use of the cooling and suffocation effects of water, greatly improving the fire extinguishing efficiency and effect, providing a strong guarantee for the safe and stable operation of the photovoltaic system.

[0053] As a further improvement of the present invention, as Figure 1 and Figure 10 shown, the locking system 6 includes a second telescopic electromagnet 601 fixedly connected to the first support base 3. The other end of the second telescopic electromagnet 601 is fixedly connected with a clamping seat 602, and the clamping seat 602 is engaged with the photovoltaic panel system 2. The clamping seats 602 are symmetrically arranged on both sides of the horizontal center line of the first support base 3. When the second telescopic electromagnet 601 is not energized, the clamping seat 602 is tightly engaged with the protective cover 212 and the guide rail 205. When the second telescopic electromagnet 601 is energized, the clamping seat 602 is separated from the protective cover 212 and the guide rail 205. After the water passing shell 203 is turned to a proper position, the clamping seat 602 is tightly engaged with the protective cover 212 and the guide rail 205 to realize the locking and limiting of the water passing shell 203, ensuring its stability and reliability during operation.

[0054] As a further improvement of the present invention, as Figure 1 and Figure 11As shown, the separation system 7 includes a side plate 707 fixedly connected to the second wire 10. A connection shell 704 is placed at one end of the side plate 707. Both the side plate 707 and the connection shell 704 are made of materials with high-temperature resistance and fireproof characteristics. Such materials can ensure the structural stability and functionality in high-temperature environments and fire hazard scenarios, guarantee the normal operation of the separation system 7. A first wire 8 is fixedly connected to the inner side of the connection shell 704. One end of the first wire 8 is fixedly connected to an insertion cylinder 701, and the insertion cylinder 701 is fixedly connected to the connection shell 704. One end of the second wire 10 is fixedly connected to a plug 702, and the plug 702 is fixedly connected to the side plate 707. The plug 702 is inserted into the inner side of the insertion cylinder 701. The materials of both the plug 702 and the insertion cylinder 701 are copper. A spring 703 is fixedly connected to the inner side of the connection shell 704, and the other end of the spring 703 is fixedly connected to the side plate 707. A third telescopic electromagnet 705 is fixedly connected to the inner top of the connection shell 704. A clamping rod 706 is fixedly connected to the top of the third telescopic electromagnet 705, and both ends of the clamping rod 706 are engaged with the side plate 707 and the connection shell 704 respectively. When a fire occurs at the bottom of the photovoltaic panel main body 202, at this time, the third telescopic electromagnet 705 is energized, and the third telescopic electromagnet 705 drives the clamping rod 706 to separate from the connection shell 704 and the side plate 707. Then, under the elastic force of the spring 703, the plug 702 is separated from the insertion cylinder 701, thereby quickly separating the first wire 8 from the second wire 10, cutting off the circuit, so as to ensure that the photovoltaic panel main body 202 can smoothly fall into the inner side of the water-filled shell 203, and at the same time prevent the fire from spreading through the circuit, improve the fire extinguishing efficiency, and minimize property losses.

[0055] As a further improvement of the present invention, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown in the figure, the photovoltaic panel system 2 includes a frame 201, which is fixedly connected to the controller 14. The inner side of the frame 201 is fixedly connected with a photovoltaic panel main body 202, and the photovoltaic panel main body 202 is fixedly connected to a junction box 9, a smoke sensor 11, and a temperature sensor 12. Card slots 219 are provided at the four corners of the frame 201, and a clamping block 502 is engaged with the frame 201 through the card slots 219. A water passing shell 203 is arranged below the photovoltaic panel main body 202. The water passing shell 203 can be made of high-strength engineering plastics, such as polycarbonate (PC). The water passing shell 203 made of polycarbonate (PC) is light in weight and convenient to turn over, and has good impact resistance. It can withstand a certain degree of hail impact without being damaged. The material of the water passing shell 203 can also be aluminum alloy. Selecting aluminum alloy material can also meet the dual requirements of lightness and protection. A water spray pipe 204 is fixedly connected to the inner side of the water passing shell 203. By reasonably setting the position and number of the water spray pipes 204, it is ensured that the water sprayed by the water spray pipes 204 can cover the back of the entire photovoltaic panel main body 202, ensuring the effects of fire extinguishing and heat dissipation. Flip assemblies are fixedly connected to both ends of the water passing shell 203, and one end of the flip assembly is fixedly connected to the second support base 4. A crushing assembly is fixedly connected to the bottom end of the water passing shell 203. The bottom of the water passing shell 203 is hollow and forms a chamber. A water supply pipe 103 is communicated with the chamber, and the end of a water return pipe 104 passes through the chamber and is communicated with the water passing shell 203. The water spray pipe 204 is communicated with the chamber. The water supply pipe 103 will input water into the inner side of the chamber, and then the water inside the chamber is sprayed onto the back of the photovoltaic panel main body 202 through the water spray pipe 204. The water for fire extinguishing will fall into the inner side of the water passing shell 203, and then reflow into the inner side of the water storage tank 101 through a filter screen 108 and the water return pipe 104. At the same time, rainwater can also reflow into the inner side of the water storage tank 101 through the filter screen 108 and the water return pipe 104.

[0056] As a further improvement of the present invention, as Figure 1 , Figure 4 , Figure 7 , Figure 8 and Figure 9As shown in the figure, the flipping assembly includes connecting bars 213 fixedly connected to both ends of the water-passing shell 203. One end of the connecting bar 213 is fixedly connected to a guide rail 205 and a protective cover 212, and the guide rail 205 and the protective cover 212 are fixedly connected. A cross bar 216 is fixedly connected between adjacent guide rails 205. Both the outer sides of the guide rail 205 and the protective cover 212 are slidably connected with a limit seat 207. The top end of the limit seat 207 is fixedly connected to a fixing plate 209. One end of the fixing plate 209 is fixedly connected to a second motor 210. The end of the main shaft of the second motor 210 is fixedly connected to a gear 211. One end of the gear 211 meshes with a rack 206, and the rack 206 is fixedly connected to the guide rail 205. Both ends of the guide rail 205 and the rack 206 are designed to be curved, which is convenient for the gear 211 to adjust the positions of the rack 206 and the guide rail 205. One end of the limit seat 207 is fixedly connected to a first motor 208 through a main shaft. One end of the housing of the first motor 208 is fixedly connected to a diagonal support plate 215, and the diagonal support plate 215 is fixedly connected to the second support seat 4. When encountering hail weather or when it is necessary to clean the dust on the surface of the photovoltaic panel main body 202, first separate the bottom clamping seat 602 from the guide rail 205 and the protective cover 212. Then, make the second motor 210 drive the gear 211 to rotate counterclockwise, so that the gear 211 drives the guide rail 205 and the protective cover 212 to move along the limit seat 207 through the rack 206, so that the guide rail 205 and the protective cover 212 drive the water-passing shell 203 to be in a vertical state first through the connecting bar 213. When the next curved part of the rack 206 moves to the side of the gear 211, the second motor 210 stops working. Then, the first motor 208 drives the limit seat 207 to rotate counterclockwise, so that the limit seat 207 drives the water-passing shell 203 and the water spray pipe 204 to rotate towards the photovoltaic panel main body 202 through the guide rail 205, the protective cover 212 and the connecting bar 213, so that the water-passing shell 203 covers the photovoltaic panel main body 202. Then, the top clamping seat 602 is clamped with the guide rail 205 and the protective cover 212 together. At the same time, the crushing assembly will also rotate to the top of the photovoltaic panel main body 202 together with the water-passing shell 203 to form a protective layer, effectively resisting hail. And when it is necessary to clean the dust on the surface of the photovoltaic panel main body 202, just spray water on the surface of the photovoltaic panel main body 202 through the water supply pipe 103, the water-passing shell 203 and the water spray pipe 204 for cleaning. The sewage for cleaning is directly discharged to the ground. When it is necessary to reset the water-passing shell 203 below the photovoltaic panel main body 202, just operate according to the above opposite steps.

[0057] As a further improvement of the present invention, as Figure 5As shown in the figure, the crushing component includes a buffer pad 218 fixedly connected to the bottom of the water-passing shell 203. One end of the buffer pad 218 is fixedly connected with a criss-cross arranged crushing rod 217. The buffer pad 218 is made of a rubber pad, and the material of the crushing rod 217 is aluminum alloy. When the water-passing shell 203 flips, the buffer pad 218 and the crushing rod 217 will also flip along with the water-passing shell 203. At this time, the protection of the main body 202 of the photovoltaic panel can be realized through the water-passing shell 203, the buffer pad 218 and the crushing rod 217. When hail hits the crushing rod 217, the hail will break due to the reaction force of the crushing rod 217 during the impact. When the broken hail falls on the buffer pad 218, the buffer pad 218 absorbs the impact energy and reduces the direct impact on the water-passing shell 203, realizing the protection of the water-passing shell 203.

[0058] As a further improvement of the present invention, as Figure 7 and Figure 8 shown, a dust-proof hair 214 is fixedly connected to the opening of the protective cover 212. The dust-proof hair 214 is usually made of wear-resistant and anti-aging synthetic fiber materials (such as nylon, polyester or polypropylene). These materials have excellent weather resistance and can resist the influence of ultraviolet rays, high temperature and humid environment, and are suitable for long-term use in outdoor environments. The dust-proof hair 214 is soft and elastic, can closely fit the opening of the protective cover 212 to form an effective dust-proof barrier. At the same time, because the dust-proof hair 214 is soft and elastic, the dust-proof hair 214 will not affect the relative movement between the main shaft of the second motor 210, the protective cover 212 and the guide rail 205. Thus, the protective cover 212 and the guide rail 205 drive the water-passing shell 203 to flip normally through the connecting bar 213. At the same time, the dust-proof hair 214 is densely arranged at the opening of the protective cover 212 to form a physical barrier, which can effectively intercept impurities such as dust and sand particles in the air and prevent them from entering the inside of the protective cover 212.

[0059] As a further improvement of the present invention, the usage method is as follows:

[0060] S1: When the smoke sensor 11 detects smoke, the smoke sensor 11 controls the water supply system 1 to supply water to the inner side of the water-passing shell 203 through the controller 14. At the same time, the fixing system 5 and the separation system 7 also work together;

[0061] S2: Then the water-passing shell 203 will spray water to extinguish the fire through the spray pipe 204;

[0062] S3: When the temperature sensor 12 detects that the temperature of the main body 202 of the photovoltaic panel is abnormally higher than the set threshold, the temperature sensor 12 controls the water supply system 1 to supply water to the inner side of the photovoltaic panel system 2 through the controller 14;

[0063] S4: Then the water-passing shell 203 will spray water to cool down through the spray pipe 204;

[0064] S5: When encountering hail weather, the staff controls the operation of the photovoltaic panel system 2 through a mobile phone terminal or a computer terminal, so that the water-filled shell 203 inside the photovoltaic panel system 2 automatically flips above the photovoltaic panel main body 202;

[0065] S6: When it is necessary to clean the dust on the surface of the photovoltaic panel main body 202, the staff controls the operation of the photovoltaic panel system 2 through a mobile phone terminal or a computer terminal, so that the water-filled shell 203 inside the photovoltaic panel system 2 automatically flips above the photovoltaic panel main body 202;

[0066] S7: Control the water supply system 1 to supply water to the inside of the water-filled shell 203;

[0067] S8: Then the water-filled shell 203 will spray water through the water spray pipe 204 to wash the dust on the surface of the photovoltaic panel main body 202.

[0068] The above is a preferred embodiment of the present invention. The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the protection scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic power generation system for a roof, comprising a photovoltaic panel system (2) and a water supply system (1), characterized in that: The water inlet end of the photovoltaic panel system (2) is connected to a water supply system (1); the two ends of the photovoltaic panel system (2) are respectively fixedly connected to a first support seat (3) and a second support seat (4); one end of each of the first support seat (3) and the second support seat (4) is provided with a fixing system (5); one end of the first support seat (3) is provided with a locking system (6); one end of the photovoltaic panel system (2) is fixedly connected to a junction box (9), a smoke sensor (11) and a temperature sensor (12); one end of the junction box (9) is fixedly connected to a second wire (10); the other end of the second wire (10) is connected to a separation system (7); one end of the separation system (7) is connected to a first wire (8), and the first wire (8) is connected to an external device; one end of the water supply system (1) is provided with a storage battery (13); and the tail end of the photovoltaic panel system (2) is fixedly connected to a controller (14).

2. A photovoltaic power generation system for a roof according to claim 1, characterized in that: The water supply system (1) comprises a water tank (101), one end of the water tank (101) is fixedly connected to a water pump (102), the outlet end of the water pump (102) is connected to a water supply pipe (103), and the water supply pipe (103) is connected to a photovoltaic panel system (2), the top end of the water tank (101) is fixedly connected to a return pipe (104), and the return pipe (104) is connected to the photovoltaic panel system (2), the outer side of the return pipe (104) is connected to a first solenoid valve (105), the end of the return pipe (104) is fixedly connected to a filter (108), one end of the water tank (101) is fixedly connected to a water inlet pipe (106), and the water inlet pipe (106) is connected to an external water source, and the outer side of the water inlet pipe (106) is connected to a second solenoid valve (107).

3. A photovoltaic power generation system for a roof according to claim 1, characterized in that: The fixing system (5) comprises a first telescopic electromagnet (501) fixedly connected to the first support seat (3) and the second support seat (4); the other end of the first telescopic electromagnet (501) is fixedly connected to a clamping block (502), and the clamping block (502) is fixedly connected to the photovoltaic panel system (2).

4. A photovoltaic power generation system for a roof according to claim 1, characterized in that: The locking system (6) comprises a second telescopic electromagnet (601) fixedly connected to the first support seat (3), the other end of the second telescopic electromagnet (601) is fixedly connected to a clamping seat (602), and the clamping seat (602) is engaged with the photovoltaic panel system (2).

5. A photovoltaic power generation system for a roof according to claim 1, characterized in that: The separation system (7) comprises a side plate (707) fixedly connected to the second wire (10); a connection shell (704) is placed at one end of the side plate (707); a first wire (8) is fixedly connected to the inner side of the connection shell (704); an insert (701) is fixedly connected to one end of the first wire (8); the insert (701) is fixedly connected to the connection shell (704); a plug (702) is fixedly connected to one end of the second wire (10); and the plug (702) is fixedly connected to the side plate (707). The plug (702) is inserted into the inner side of the plug tube (701), the inner side of the connecting shell (704) is fixedly connected with a spring (703), and the other end of the spring (703) is fixedly connected to the side plate (707), the inner side of the top end of the connecting shell (704) is fixedly connected with a third telescopic electromagnet (705), the top end of the third telescopic electromagnet (705) is fixedly connected with a clamping rod (706), and the two ends of the clamping rod (706) are respectively engaged with the side plate (707) and the connecting shell (704).

6. A multifunctional photovoltaic panel for roofing according to any one of claims 1 to 5, characterized in that: The photovoltaic panel system (2) comprises a frame (201), the frame (201) is fixedly connected to a controller (14), a photovoltaic panel body (202) is fixedly connected to the inner side of the frame (201), and the photovoltaic panel body (202) is fixedly connected to a junction box (9), a smoke sensor (11) and a temperature sensor (12), four corners of the frame (201) are provided with card slots (219), and the card block (502) is engaged with the frame (201) through the card slots (219), and a water-permeable ... The water-passing shell (203) is fixedly connected to a water spray pipe (204) on the inner side of the water-passing shell (203), both ends of the water-passing shell (203) are fixedly connected to a turnover assembly, and one end of the turnover assembly is fixedly connected to a second support seat (4), the bottom end of the water-passing shell (203) is fixedly connected to a crushing assembly, the bottom of the water-passing shell (203) is hollow and forms a chamber, the water supply pipe (103) is connected to the chamber, the end of the water return pipe (104) passes through the chamber and is connected to the water-passing shell (203), and the water spray pipe (204) is connected to the chamber.

7. The multifunctional photovoltaic panel for roof according to claim 6, characterized in that: The turnover assembly comprises a connecting strip (213) fixedly connected to both ends of the water-passing shell (203); one end of the connecting strip (213) is fixedly connected to a guide rail (205) and a protective cover (212); the guide rail (205) and the protective cover (212) are fixedly connected; a cross bar (216) is fixedly connected between adjacent guide rails (205); the outer sides of the guide rail (205) and the protective cover (212) are slidably connected to a limit seat (207); the top end of the limit seat (207) is fixedly connected to a fixing plate (209); One end of the fixed plate (209) is fixedly connected to a second motor (210), a main shaft end of the second motor (210) is fixedly connected to a gear (211), one end of the gear (211) is meshed with a rack (206), and the rack (206) is fixedly connected to the guide rail (205), one end of the limit seat (207) is fixedly connected to the first motor (208) via the main shaft, one end of the housing of the first motor (208) is fixedly connected to a diagonal support plate (215), and the diagonal support plate (215) is fixedly connected to the second support seat (4).

8. The multifunctional photovoltaic panel for roof according to claim 6, characterized in that: The crushing assembly comprises a buffer pad (218) fixedly connected to the bottom of the water-passing shell (203), and one end of the buffer pad (218) is fixedly connected to a crushing rod (217) arranged in a crisscross pattern.

9. The multifunctional photovoltaic panel for roof according to claim 1, characterized in that: The opening of the protective cover (212) is fixedly connected with dust blocking hair (214).

10. A method for using a photovoltaic power generation system for a roof according to any one of claims 1 to 9, characterized in that: S1: When the smoke sensor (11) detects smoke, the smoke sensor (11) controls the water supply system (1) through the controller (14) to supply water to the inner side of the water-passing shell (203), and the fixing system (5) and the separation system (7) also work together; S2: The water-passing shell (203) then sprays water through the water spray pipe (204) to extinguish the fire; S3: When the temperature sensor (12) detects that the temperature of the photovoltaic panel body (202) is abnormal and exceeds a set threshold, the temperature sensor (12) controls the water supply system (1) through the controller (14) to supply water to the inner side of the photovoltaic panel system (2); S4: The water-passing shell (203) will then spray water through the water spray pipe (204) to cool down; S5: When encountering hail weather, the staff controls the photovoltaic panel system (2) through a mobile phone terminal or a computer terminal, so that the water-permeable shell (203) inside the photovoltaic panel system (2) automatically flips over to the top of the photovoltaic panel body (202); S6: When it is necessary to clean the dust on the surface of the photovoltaic panel body (202), the staff controls the photovoltaic panel system (2) through a mobile phone terminal or a computer terminal, so that the water-permeable shell (203) inside the photovoltaic panel system (2) automatically flips over to the top of the photovoltaic panel body (202); S7: Control the water supply system (1) to supply water to the inner side of the water-passing shell (203); S8: The water-passing shell (203) then sprays water through the water spray pipe (204) to wash away the dust on the surface of the photovoltaic panel body (202).

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