Solar photovoltaic system

Abstract

The invention belongs to the technical field of photovoltaic power generation, and discloses a solar photovoltaic system, which comprises supporting legs and a mounting rack, a solar cell panel is fixedly mounted in the mounting rack, a plurality of groups of inclined air ports are formed in the mounting rack, an air blowing device is mounted at the bottom end of the mounting rack, and an air outlet is formed in the bottom end of the air blowing device. A driving device is mounted in the center of the bottom end of the mounting frame, the blowing device comprises fixing frames symmetrically and fixedly mounted at the bottom end of the mounting frame, a blowing header pipe is fixedly mounted between the two fixing frames, and an electric fan is fixedly mounted in the blowing header pipe; by moving the air blowing branch pipes to the inclined air openings, hot air blown out of the inclined air openings heats and melts large-particle hail about to fall on the solar cell panel, the falling speed of the hail is reduced, the impact force of the hail falling on the solar cell panel is effectively reduced, and the solar cell panel is prevented from being crashed.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic power generation, and particularly relates to a solar photovoltaic system. Background Art

[0002] A solar photovoltaic system is a system that uses solar panels to convert solar energy into electrical energy and stores and converts it into available electrical energy through devices such as a controller, a storage battery, and an inverter. The solar photovoltaic system consists of a solar cell bank, a solar controller, and a storage battery (bank).

[0003] When the existing solar photovoltaic system is in use, it usually does not add protective measures to the solar panels. In the event of extreme weather such as hail, since the speed of some large hail particles falling is relatively fast, the impact force when they hit the surface of the solar panels is relatively large, which is likely to cause damage to the solar panels and affect their normal operation. Summary of the Invention

[0004] In view of the problem in the prior art that the speed of some large hail particles falling is relatively fast, the impact force when they hit the surface of the solar panels is relatively large, which is likely to cause damage to the solar panels and affect their normal operation, the present invention proposes the following technical solutions:

[0005] A solar photovoltaic system, comprising: support legs and a mounting frame. A solar panel is fixedly installed inside the mounting frame. A number of groups of inclined air vents are formed inside the mounting frame. A blowing device is installed at the bottom end of the mounting frame. A driving device is installed at the center position of the bottom end of the mounting frame;

[0006] The blowing device includes fixed frames symmetrically and fixedly installed at the bottom end of the mounting frame. A blowing main pipe is fixedly installed between the two fixed frames. An electric fan is fixedly installed inside the blowing main pipe. An electric heating wire is installed directly below the electric fan inside the blowing main pipe. A dust-proof cover is embedded at the bottom end of the blowing main pipe. The outer side of the blowing main pipe is symmetrically and fixedly connected with hoses. The other ends of the two hoses are both fixedly connected with rectangular air ducts. A number of groups of blowing branch pipes are fixedly connected to the end faces of the two rectangular air ducts far away from the hoses. A number of groups of support blocks are fixedly installed at the bottom end of the mounting frame.

[0007] As a preference of the above technical solution, elastic bands are fixedly connected inside a number of groups of the blowing branch pipes. Electromagnets are fixedly connected to the tops of a number of groups of the elastic bands, and the electromagnets are all slidably installed inside the blowing branch pipes.

[0008] Preferably, as the above technical solution, the driving device includes a motor fixedly installed at the center of the bottom end of the mounting frame. The output shaft of the motor is fixedly connected with a gear, and the outer side of the gear is meshed with a rack. One end of the bottom of the rack is fixedly connected to the top end of the rectangular air duct.

[0009] Preferably, as the above technical solution, a support rod is fixedly installed at the bottom end of the mounting frame, and the rack is slidably sleeved on the outer surface of the support rod.

[0010] Preferably, as the above technical solution, several groups of corner air vents are provided inside the mounting frame. The number of the inclined air vents and the corner air vents is equal, and connecting pipes are fixedly connected to the bottom ends of both the inclined air vents and the corner air vents. All the several connecting pipes are made of iron materials, and rubber gaskets are fixedly sleeved on the outer sides of the bottom ends of each connecting pipe.

[0011] Preferably, as the above technical solution, a valve one is fixedly installed inside each group of the inclined air vents, and a valve two is fixedly installed inside each group of the corner air vents.

[0012] Preferably, as the above technical solution, the bottom end of the rectangular air duct fits against the inner wall surface of the support block, and limiting rods are symmetrically and fixedly installed on the outer sides of several groups of the support blocks.

[0013] Preferably, as the above technical solution, a water storage tank is embedded and installed inside the mounting frame on the back of the solar panel. A diversion plate is slidably installed inside the water storage tank, and one end of the diversion plate away from the water storage tank is fixedly connected with a baffle.

[0014] Preferably, as the above technical solution, the bottom end of the baffle is fixedly connected with an L-shaped connecting frame, the other end of the L-shaped connecting frame fits against the outer surface of the blowing branch pipe, and a spring telescopic rod is fixedly installed inside the water storage tank. One end of the spring telescopic rod away from the water storage tank is fixedly connected to the outer surface of the baffle.

[0015] The beneficial effects of the present invention are as follows:

[0016] (1) By moving the blowing branch pipe to the position of the inclined air vent, the hot air blown out from the inclined air vent heats and melts the large-particle hailstones that are about to fall on the solar panel, and slows down the falling speed of the hailstones, effectively reducing the impact force of the hailstones falling on the solar panel and preventing the solar panel from being damaged.

[0017] (2) By moving the blowing branch pipe to the position of the corner air vent, the air blown out from the corner air vent quickly dries the water on the surface of the solar panel and blows away the impurities floating on the solar panel, ensuring that the solar panel can quickly return to the normal working state.

[0018] (3) By installing a rainwater accumulation tank between the solar panel and the mounting rack, part of the rainfall can flow into the rainwater accumulation tank along the diversion plate, so that the heat generated when the solar panel works can be absorbed by the rainwater in the rainwater accumulation tank, effectively cooling the solar panel and improving its working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Fig. shows the overall structural schematic diagram of a solar photovoltaic system;

[0020] Figure 2 Fig. shows the structural schematic diagram of the bottom end of the mounting rack;

[0021] Figure 3 Fig. shows a cross-sectional view of a part of the solar photovoltaic system;

[0022] Figure 4 Fig. shows Figure 3 the structural schematic diagram of area A in

[0023] Figure 5 Fig. shows Figure 3 the structural schematic diagram of area B in

[0024] Figure 6 Fig. shows the structural schematic diagram of the air blowing device;

[0025] Figure 7 Fig. shows the structural schematic diagram of the driving device;

[0026] Figure 8 Fig. shows the structural schematic diagram of the mounting rack and the rainwater accumulation tank;

[0027] Figure 9 Fig. shows Figure 8 the structural schematic diagram of area C in

[0028] Figure 10 Fig. shows the structural schematic diagram of the air blowing branch pipe and the diversion plate.

[0029] In the figure: 1, support leg; 2, mounting rack; 201, solar panel; 202, inclined air vent; 203, corner air vent; 204, valve one; 205, valve two; 206, connecting pipe; 207, rubber gasket; 3, air blowing device; 301, fixing frame; 302, air blowing main pipe; 303, electric fan; 304, electric heating wire; 305, dustproof cover; 306, hose; 307, rectangular air duct; 308, air blowing branch pipe; 309, elastic band; 310, electromagnet; 311, support block; 312, limiting rod; 4, driving device; 401, motor; 402, gear; 403, rack; 404, support rod; 5, rainwater accumulation tank; 501, diversion plate; 502, baffle; 503, L-shaped connecting frame; 504, spring telescopic rod. Specific embodiments

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0031] Embodiment 1

[0032] The present invention provides a solar photovoltaic system, as Figures 1 to 10 shown, including: support legs 1 and a mounting frame 2. A solar panel 201 is fixedly installed inside the mounting frame 2. A number of groups of inclined air vents 202 are provided inside the mounting frame 2. A blowing device 3 is installed at the bottom end of the mounting frame 2. A driving device 4 is installed at the center position of the bottom end of the mounting frame 2;

[0033] The blowing device 3 includes fixing frames 301 symmetrically and fixedly installed at the bottom end of the mounting frame 2. A blowing main pipe 302 is fixedly installed between the two fixing frames 301. An electric fan 303 is fixedly installed inside the blowing main pipe 302. An electric heating wire 304 is installed directly below the electric fan 303 inside the blowing main pipe 302. A dust-proof cover 305 is embedded at the bottom end of the blowing main pipe 302. Flexible hoses 306 are symmetrically and fixedly connected to the outer side of the blowing main pipe 302. The other ends of the two flexible hoses 306 are both fixedly connected to rectangular air ducts 307. A number of groups of blowing branch pipes 308 are fixedly connected to the end faces of the two rectangular air ducts 307 away from the flexible hoses 306. A number of groups of support blocks 311 are fixedly installed at the bottom end of the mounting frame 2. Elastic bands 309 are fixedly connected inside the number of groups of blowing branch pipes 308. The top ends of the number of groups of elastic bands 309 are all fixedly connected to electromagnets 310, and the electromagnets 310 are all slidably installed inside the blowing branch pipes 308. When the electric fan 303 and the electric heating wire 304 are turned on, the electric fan 303 sends the heated hot air into the flexible hoses 306 through the blowing main pipe 302, then flows into the rectangular air ducts 307 through the flexible hoses 306, and finally blows out along the inclined air vents 202 through the blowing branch pipes 308, so as to melt the large hail particles that are about to fall above the solar panel 201 and slow down their falling speed, effectively reducing the impact force when the hail hits the solar panel 201 and protecting the solar panel 201 from damage.

[0034] As Figure 3 and Figure 7As shown in the figure, the driving device 4 includes a motor 401 fixedly installed at the center of the bottom end of the mounting frame 2. The output shaft of the motor 401 is fixedly connected with a gear 402. The outer side of the gear 402 is meshed and connected with a rack 403. One end of the bottom of the rack 403 is fixedly connected to the top end of the rectangular air duct 307. A support rod 404 is fixedly installed at the bottom end of the mounting frame 2. The rack 403 is slidably sleeved on the outer surface of the support rod 404. The number of the racks 403 is set to two and is centrosymmetric about the center point of the solar panel 201. When the motor 401 works to drive the gear 402 to rotate, the two racks 403 are driven to move simultaneously through the meshing connection. When the rack 403 moves, it further drives the rectangular air duct 307 to move, so as to realize the adjustment of the position of the blowing branch pipe 308, align the electromagnet 310 with the connecting pipe 206 on the inclined air outlet 202 and the corner air outlet 203, and achieve the blowing effect.

[0035] As Figures 3 to 5 shown in the figure, several groups of corner air outlets 203 are arranged inside the mounting frame 2. The number of the inclined air outlets 202 and the corner air outlets 203 is equal, and the bottom ends of the inclined air outlets 202 and the corner air outlets 203 are fixedly connected with connecting pipes 206. A plurality of connecting pipes 206 are all made of iron materials, and the connecting pipes 206 are all subjected to painting and rust prevention treatment. A rubber gasket 207 is fixedly sleeved on the outer side of the bottom end of each connecting pipe 206. According to the actual use situation, the electromagnet 310 at one end of the blowing branch pipe 308 is aligned with the inclined air outlet 202 or the corner air outlet 203, and then the electromagnet 310 is energized to adsorb it on the connecting pipe 206 on the inclined air outlet 202 or the corner air outlet 203. When the electromagnet 310 moves upward and adsorbs the connecting pipe 206, the rubber gasket 207 is extruded and deformed, so as to ensure the sealing performance between the blowing branch pipe 308 and the connecting pipe 206 and avoid air leakage.

[0036] As Figures 3 to 5 shown in the figure, a valve one 204 is fixedly installed inside several groups of inclined air outlets 202, and a valve two 205 is fixedly installed inside several groups of corner air outlets 203. The valve one 204 and the valve two 205 are both one-way channels. The gas in the blowing branch pipe 308 can be ejected from the inclined air outlet 202 or the corner air outlet 203 along the connecting pipe 206, and the dust, water, etc. above the solar panel 201 are blocked at the top end of the mounting frame 2 by the valve one 204 or the valve two 205, effectively blocking the water and other sundries from entering the blowing branch pipe 308 along the inclined air outlet 202 or the corner air outlet 203.

[0037] As Figure 3 and Figure 6As shown, the bottom end of the rectangular air duct 307 is attached to the inner wall surface of the support block 311. A number of limiting rods 312 are symmetrically and fixedly installed on the outer sides of the support blocks 311, which can provide stable support for the rectangular air duct 307 and the blowing branch pipe 308. When the blowing branch pipe 308 moves from the inclined air outlet 202 to the corner air outlet 203, under the action of the limiting rods 312, its running track is ensured and its deflection and dislocation are prevented.

[0038] As Figures 8 to 10 shown, a water storage tank 5 is embedded in the interior of the mounting frame 2 on the back of the solar panel 201. The inclined air outlet 202 and the corner air outlet 203 both penetrate through the water storage tank 5, and the air blown through the inclined air outlet 202 and the corner air outlet 203 does not directly contact the rainwater in the water storage tank 5. A flow guide plate 501 is slidably installed inside the water storage tank 5. One end of the flow guide plate 501 away from the water storage tank 5 is fixedly connected to a baffle plate 502. During rainy weather, some rainwater can enter the water storage tank 5 along the flow guide plate 501. When the solar panel 201 generates heat during operation, the rainwater accumulated in the water storage tank 5 can effectively absorb and take away the heat on the surface of the solar panel 201, thereby achieving a good cooling effect and improving the working efficiency of the solar panel 201.

[0039] As Figures 8 to 10 shown, the bottom end of the baffle plate 502 is fixedly connected to an L-shaped connecting frame 503. The other end of the L-shaped connecting frame 503 is attached to the outer surface of the blowing branch pipe 308. A spring telescopic rod 504 is fixedly installed inside the water storage tank 5. One end of the spring telescopic rod 504 away from the water storage tank 5 is fixedly connected to the outer surface of the baffle plate 502. When the blowing branch pipe 308 moves towards the connecting pipe 206 at the inclined air outlet 202, the blowing branch pipe 308 simultaneously pushes the L-shaped connecting frame 503 to move, thereby driving the baffle plate 502 to be pulled out from one end face of the water storage tank 5, enabling the rainwater to smoothly flow into the water storage tank 5 along the flow guide plate 501. When the rain stops, the blowing branch pipe 308 moves in the reverse direction, and then the deformation generated when the spring telescopic rod 504 is stretched drives the baffle plate 502 to move in the reverse direction, thereby blocking the baffle plate 502 at the end of the water storage tank 5 to prevent impurities from entering.

[0040] Working principle: In the initial state, one end of the blowing branch pipe 308 connected to the electromagnet 310 is located between the inclined air outlet 202 and the corner air outlet 203. When encountering a hail weather, start the motor 401 to drive the gear 402 to rotate. When the gear 402 rotates, it drives the two racks 403 to slide simultaneously. When the racks 403 slide, they drive the rectangular air duct 307 to move, so that the two rectangular air ducts 307 move towards the inclined air outlet 202, and the ends of the blowing branch pipes 308 on both sides away from the rectangular air duct 307 move to the position of the inclined air outlet 202 at the same time. Then, energize the electromagnet 310 to make it adsorb to the connecting pipe 206 and squeeze the rubber gasket 207 to deform it, so that the electromagnet 310 and the rubber gasket 207 are closely attached to ensure the sealing between the blowing branch pipe 308 and the connecting pipe 206 and avoid air leakage. Subsequently, turn on the electric fan 303 and the electric heating wire 304. The electric fan 303 sends the heated hot air into the hose 306 through the blowing main pipe 302. The finally heated hot air blows out from the inclined air outlet 202 through the blowing branch pipe 308, and then the hot air blowing out from the outlets of the inclined air outlets 202 on both sides of the top of the mounting rack 2 blows obliquely upward. The blown hot air completely covers directly above the solar panel 201, so as to melt the hail that is about to fall on the solar panel 201 and slow down its falling speed, effectively reducing the impact force when the hail falls on the solar panel 201 and protecting the solar panel 201 from damage;

[0041] After the hail weather ends, reverse-start the motor 401 to drive the blowing branch pipe 308 to move to the position of the corner air outlet 203. Then start the electric fan 303 to make the air blow out from the corner air outlet 203. The air blowing out from the corner air outlet 203 can quickly dry the accumulated water on the surface of the solar panel 201 and ensure that the solar panel 201 can quickly return to the normal working state;

[0042] During the rainfall weather, repeat the above operations to make the blowing branch pipe 308 move to the position of the inclined air outlet 202. When the blowing branch pipe 308 moves, it pushes the L-shaped connecting frame 503 to move. When the L-shaped connecting frame 503 moves, it drives the baffle 502 to be pulled out from one end face of the water accumulation tank 5, so that part of the rainfall can flow into the water accumulation tank 5 along the diversion plate 501, and the heat generated when the solar panel 201 works can be absorbed by the rainwater in the water accumulation tank 5, effectively realizing the cooling of the solar panel 201 and improving the working efficiency of the solar panel 201.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it.

Claims

1. A solar photovoltaic system, characterized in that: include: A supporting leg (1) and a mounting frame (2), wherein a solar cell panel (201) is fixedly mounted inside the mounting frame (2), a plurality of groups of oblique air vents (202) are provided inside the mounting frame (2), an air blowing device (3) is mounted at the bottom end of the mounting frame (2), and a driving device (4) is mounted at the center position of the bottom end of the mounting frame (2); The air blowing device (3) comprises a fixing frame (301) symmetrically fixedly mounted on the bottom end of the mounting frame (2); an air blowing main pipe (302) is fixedly mounted between the two fixing frames (301); an electric fan (303) is fixedly mounted inside the air blowing main pipe (302); an electric heating wire (304) is mounted inside the air blowing main pipe (302) directly below the electric fan (303); a dust cover (305) is embedded and mounted at the bottom end of the air blowing main pipe (302); a hose (306) is symmetrically fixedly connected to the outside of the air blowing main pipe (302); the other ends of the two hoses (306) are fixedly connected to a rectangular air duct (307); the end surfaces of the two rectangular air ducts (307) away from the hose (306) are fixedly connected to a plurality of groups of air blowing branch pipes (308); and a plurality of groups of support blocks (311) are fixedly mounted at the bottom end of the mounting frame (2).

2. The solar photovoltaic system according to claim 1, characterized in that: The insides of the several groups of the air blowing pipes (308) are all fixedly connected with elastic bands (309), the top ends of the several groups of the elastic bands (309) are all fixedly connected with electromagnets (310), and the electromagnets (310) are all slidably installed inside the air blowing pipes (308).

3. The solar photovoltaic system according to claim 1, characterized in that: The driving device (4) comprises a motor (401) fixedly mounted at the center position of the bottom end of the mounting frame (2); the output shaft of the motor (401) is fixedly connected to a gear (402); the outer side of the gear (402) is meshingly connected to a rack (403); and the bottom of one end of the rack (403) is fixedly connected to the top end of the rectangular air duct (307).

4. The solar photovoltaic system according to claim 3, characterized in that: A support rod (404) is fixedly mounted on the bottom end of the mounting frame (2), and the rack (403) is slidably sleeved on the outer surface of the support rod (404).

5. The solar photovoltaic system according to claim 1, characterized in that: A plurality of groups of corner air vents (203) are provided inside the mounting frame (2), the number of the oblique air vents (202) and the corner air vents (203) are equal, and the bottom ends of the oblique air vents (202) and the corner air vents (203) are fixedly connected with connecting pipes (206), the plurality of connecting pipes (206) are made of iron material, and the outer side of the bottom end of each connecting pipe (206) is fixedly sleeved with a rubber gasket (207).

6. The solar photovoltaic system according to claim 5, characterized in that: A plurality of groups of the oblique air outlets (202) are all fixedly installed with valve 1 (204) inside, and a plurality of groups of the corner air outlets (203) are all fixedly installed with valve 2 (205) inside.

7. The solar photovoltaic system according to claim 1, characterized in that: The bottom end of the rectangular air duct (307) is attached to the inner wall surface of the support block (311), and the outer sides of several groups of the support blocks (311) are symmetrically fixed with limit rods (312).

8. The solar photovoltaic system according to claim 1, characterized in that: A water storage box (5) is embedded and installed inside the mounting frame (2) at the back of the solar cell panel (201), a guide plate (501) is slidably installed inside the water storage box (5), and a baffle (502) is fixedly connected to one end of the guide plate (501) away from the water storage box (5).

9. The solar photovoltaic system according to claim 8, characterized in that: The bottom end of the baffle (502) is fixedly connected to an L-shaped connecting frame (503), and the other end of the L-shaped connecting frame (503) is in close contact with the outer surface of the blowing branch pipe (308). A spring telescopic rod (504) is fixedly installed inside the water storage box (5), and one end of the spring telescopic rod (504) away from the water storage box (5) is fixedly connected to the outer surface of the baffle (502).

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