Photovoltaic module lightning protection device

Abstract

The present invention discloses a photovoltaic component lightning protection device, including a lightning termination component and a cooling component. The lightning termination component is composed of a lightning termination rod and a grounding rod. The lightning termination rod is fixedly connected to the upper end of the grounding rod. The outer wall of the grounding rod is provided with a directional tilting component for causing the grounding rod to tilt in a directional manner when tilted. The cooling component is composed of a water storage pipe and a plurality of auxiliary grounding rods. The water storage pipe is sleeved on the outer wall of the grounding rod. The plurality of auxiliary grounding rods are fixedly connected to the axial outer wall of the grounding rod at equal intervals. By arranging the above-mentioned device, the grounding rod and the auxiliary grounding rod can be quickly cooled and reduced in resistance, so as to avoid the grounding rod being burned and damaged due to excessive high-voltage current, and further avoid the situation where the photovoltaic power is damaged because the current cannot be actually introduced into the earth due to the damaged grounding rod.

Description

Technical Field

[0001] The invention relates to the field of photovoltaic power generation, and in particular to a photovoltaic component lightning protection device. Background Art

[0002] my country's photovoltaic equipment industry has basically acquired the ability to produce complete lines of solar cell manufacturing equipment. The equipment manufactured by my country's photovoltaic equipment companies covers applications ranging from silicon material production, silicon material processing, silicon wafer processing to the production of solar cell chips and the construction of corresponding pure water preparation, environmental protection treatment, and purification projects.

[0003] China Patent Network discloses an invention of a DC lightning protection device for photovoltaic equipment and a method of using the same. The patent publication number of the invention is "CN113162006A". The device is mainly provided with an insulating box. The insulating box is moved to the photovoltaic equipment use area, and the sealing blocker is removed from the insulating box by holding a handle. The photovoltaic equipment is installed inside the insulating box. Then, the elastic rubber ring and the sealing plug ring are inserted into the insulating box by holding the handle, and the sealing baffle is used to block and limit the position. The elastic action of the elastic rubber ring is used to tightly plug the sealing plug ring and the insulating box. The sealing blocker is further returned to its position and tightly installed to perform sealing protection, thereby increasing the lightning protection of the photovoltaic equipment during use and reducing the possibility of damage.

[0004] However, the above invention cannot solve the following problems during use. First, it cannot solve the problem that when the high-field high current caused by lightning strikes the lightning rod and is conducted to the earth, the grounding point will heat up, resulting in increased resistance and poor conductivity, and may even burn out. Secondly, it cannot solve the problem that when the lightning rod is struck by lightning multiple times, the connection will be deformed and broken, and the lightning rod will fall down and hit the photovoltaic equipment. Finally, it is still necessary to manually improve the soil at the grounding point periodically to avoid excessive resistivity of the earth when struck by lightning, resulting in poor drainage effect and damage to the photovoltaic equipment. Based on this, the present invention proposes a new photovoltaic module lightning protection device. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a photovoltaic module lightning protection device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A photovoltaic module lightning protection device comprises a lightning termination assembly and a cooling assembly, wherein the lightning termination assembly is composed of a lightning termination rod and a grounding rod, wherein the lightning termination rod is fixedly connected to the upper end of the grounding rod, and a directional tilting assembly is arranged on the outer wall of the grounding rod for tilting the grounding rod in a directional manner; the cooling assembly is composed of a water storage pipe and a plurality of auxiliary grounding rods, wherein the water storage pipe is sleeved on the outer wall of the grounding rod, and the plurality of auxiliary grounding rods are fixedly connected to the axial outer wall of the grounding rod at equal intervals.

[0008] Preferably, a groove is provided in the earth-guiding rod, a section of the water storage pipe is provided on the outer wall of the earth-guiding rod, and water holes are densely distributed at equal intervals are provided. The auxiliary grounding rod is hollow, and water outlet holes are densely distributed at equal intervals are provided on the auxiliary grounding rod. The auxiliary grounding rod passes through the outer wall of the earth-guiding rod and communicates with the groove.

[0009] Preferably, the directional dumping assembly consists of a fixed block, a support plate, a vertical rod, a cross rod, three collars, three connecting rods, three sliding cylinders and three sliding rods. A through groove is provided on the outer wall of the ground-guiding rod. The fixed block and the support plate are fixedly connected to the ground by bolts. A sliding groove is provided on the inner wall of the fixed block. A return spring is fixedly connected to the inner wall of the sliding groove. The end of the return spring away from the sliding groove is fixedly connected to the vertical rod. The vertical rod is slidably connected to the sliding groove. The end of the vertical rod away from the sliding groove is fixedly connected to the cross rod. The end of the cross rod away from the vertical rod passes through Through groove, one end of the horizontal rod away from the vertical rod is fixedly connected with a blocking plate, the upper end of the blocking plate is fixedly connected with an arc stopper, three through holes are opened on the support plate, the three connecting rods are fixedly connected to the side wall of the vertical rod at equal intervals, the three connecting rods respectively pass through the three through holes, the three connecting rods are fixedly connected to the three sliding cylinders at one end away from the vertical rod, the three sliding rods are respectively slidably connected to the inner wall of the sliding cylinder, the three sliding rods are fixedly connected to the three rings at one end away from the sliding cylinder, and the three rings are respectively slidably sleeved on the outer wall of the ground guide rod.

[0010] Preferably, a compressed air bag is provided on the inner wall of the groove, the compressed air bag is located at the upper end of the blocking plate, and the material of the compressed air bag is lead.

[0011] Preferably, the upper ends of the three connecting rods are fixedly connected with a clamping block, the support plate is provided with three clamping slots, the three clamping slots are respectively connected with three through holes, the three clamping blocks are respectively slidably connected with the three clamping slots, and the lower ends of the three connecting rods are fixedly connected with a spring, and one end of the spring away from the lower end of the connecting rod is fixedly connected with the through hole.

[0012] Preferably, a filter box is provided inside the auxiliary grounding rod, and calcium chloride powder is stored inside the filter box.

[0013] Preferably, the lightning rod is a multi-pin lightning rod to maximize the protection range of the lightning protection device.

[0014] The present invention has the following beneficial effects:

[0015] 1. By setting up cooling components, lightning rod components and other structures, it can be achieved that when lightning hits the lightning rod during thunderstorm weather, extremely large current and high temperature will be generated. At this time, the lead compressed air bag will be deformed and ruptured under the simultaneous action of high temperature, high voltage and internal high air pressure. At this time, the high-pressure airflow will flow to the auxiliary grounding rod through the groove opened in the grounding rod and be discharged. At this time, under the action of high-pressure airflow, the water in the water storage pipe is driven to be discharged through the water hole in atomization, thereby achieving the effect of quickly cooling the grounding rod and the auxiliary grounding rod to reduce resistance, avoiding excessive high-voltage current causing the grounding rod to burn and be damaged, and thus avoiding the situation where the current cannot be introduced into the earth in time due to the damaged grounding rod, causing damage to the photovoltaic power generation.

[0016] 2. By setting up structures such as lightning rod components and directional dumping components, it can be achieved that after lightning hits the lightning rod, the compressed air bag is damaged and the high-pressure gas is released. At the same time, the high-pressure gas will squeeze the baffle plate, so the baffle plate will move downward and then drive the vertical rod to move downward through the cross rod. When the vertical rod moves downward, the spring will be compressed. When the spring is compressed, the block will leave the slot, and the connecting rod will lose the connection with the slot. At the same time, under the action of the reset spring, a lateral thrust will be applied to the vertical rod, thereby applying a lateral thrust to the grounding rod through the connecting rod, so as to avoid the grounding rod from falling toward the location of the photovoltaic power plant and causing damage to the photovoltaic power plant when the grounding rod is deformed and broken due to lightning strike.

[0017] 3. By setting up structures such as lightning termination components and cooling components, the lead compressed air bag set inside the grounding rod can be damaged by lightning to release high-pressure airflow, and drive the water in the water storage pipe to pass through the water hole and be dispersed and atomized by the high-pressure airflow. At the same time, the atomized water vapor passes through the filter box and mixes with the calcium chloride powder inside the filter box, and is discharged into the ground through the water outlet hole and improves the resistivity of the soil, thereby increasing the conductivity of the soil and making it easier for lightning to be absorbed and discharged by the earth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a photovoltaic module lightning protection device proposed by the present invention;

[0019] Figure 2 A cross-sectional view of a photovoltaic module lightning protection device proposed by the present invention;

[0020] Figure 3 for Figure 2 A schematic diagram of the structure at point A;

[0021] Figure 4 for Figure 2 A magnified schematic diagram of the structure at B;

[0022] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point C.

[0023] In the figure: 1 grounding rod, 2 water storage pipe, 3 support plate 3, 4 fixed block, 5 slide groove, 6 vertical rod, 7 collar, 8 cross rod, 9 through groove, 10 lightning rod, 11 auxiliary grounding rod, 12 compression air bag, 13 connecting rod, 101 water hole, 102 water outlet hole, 201 groove, 202 through hole, 301 reset spring, 302 baffle plate, 303 arc block, 401 block, 402 slot, 403 spring, 404 slide cylinder, 405 slide rod, 501 filter box. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1

[0025] Reference Figure 1-2 , a photovoltaic module lightning protection device, including a lightning arrester component and a cooling component:

[0026] The lightning terminal assembly is used for attracting lightning. The lightning terminal assembly is composed of a lightning terminal rod 10 and a grounding rod 1. The lightning terminal rod 10 is a multi-pin lightning terminal rod that can maximize the protection range of the lightning protection device. The lightning terminal rod 10 and the grounding rod 1 are both made of metal materials and the outer walls are plated with an epoxy zinc-rich coating. The coating can protect the lightning terminal rod 10 and the grounding rod 1 from being easily corroded and affecting the conductivity in severe weather. The lightning terminal rod 10 is fixedly connected to the upper end of the grounding rod 1, and a directional tipping component is provided on the outer wall of the grounding rod 1 to make the grounding rod 1 tip in a directional manner when it tips over;

[0027] The cooling component is used to cool the earthing rod 1 and the auxiliary earthing rod 11. The cooling component consists of a water storage pipe 2 and multiple auxiliary earthing rods 11. The opening of the water storage pipe 2 is a conical opening, and a film is provided at the conical opening. The film is made of silicone and has a cross opening. It can collect rainwater to a certain extent in rainy weather to replenish water sources and prevent large amounts of evaporation from affecting use in high temperature weather. The water storage pipe 2 is sleeved on the outer wall of the earthing rod 1, and multiple auxiliary earthing rods 11 are fixedly connected to the axial outer wall of the earthing rod 1 at equal intervals. The auxiliary earthing rod 11 is made of metal material, and the inner and outer walls are both plated with nickel-phosphorus alloy coating.

[0028] In this embodiment, after receiving a lightning strike, the lightning rod 10 will guide the lightning current into the earth through the grounding rod 1, and increase the conductive effect through the auxiliary grounding rod 11 so that the current can quickly disperse into the earth, thereby preventing lightning from damaging the photovoltaic equipment. At the same time, lightning strikes are often accompanied by rain, and the conical opening at the upper end of the water storage pipe 2 will collect rainwater. When the rainwater gathers on the film at the conical opening, it will compress the film and deform the film, so that the rainwater will flow into the water storage pipe 2 through the cross opening on the film. Photovoltaics are often installed in areas with less rain and snow. When in a high temperature environment, the film will prevent the evaporation of water in the water storage pipe 2. Embodiment 2

[0029] Further, see Figure 1 , Figure 2 , Figure 4 Compared with the first embodiment, a groove 201 is provided in the earth-leading rod 1 in the present embodiment, and a section of a water storage pipe 2 is provided on the outer wall of the earth-leading rod 1 with water holes 101 densely distributed at equal intervals. The opening size of the water holes 101 is about 60 microns. Water holes of this size can block the flow of water without the action of external force to prevent water from seeping out. The auxiliary earthing rod 11 is hollow, and water outlet holes 102 densely distributed at equal intervals are provided on the auxiliary earthing rod 11. The auxiliary earthing rod 11 penetrates the outer wall of the earth-leading rod 1 and communicates with the groove 201. A compressed air bag 12 is provided on the inner wall of the groove 201. The outer wall of the compressed air bag 12 is thin, so that it can be quickly deformed and ruptured after being struck by lightning, so as to avoid the situation where the compressed air bag 12 cannot rupture when struck by lightning. The compressed air bag 12 is located at the upper end of the barrier plate 302, and the material of the compressed air bag 12 is lead.

[0030] In the embodiment, when lightning strikes the lightning rod 10 during thunderstorm weather, extremely large current and high temperature will be generated. At this time, the lead compressed air bag 12 arranged inside the grounding rod 1 will be deformed and ruptured under the simultaneous action of high temperature, high voltage and internal high air pressure, and release high-pressure airflow. At the same time, the high-pressure airflow will flow through the groove 201 opened in the grounding rod 1 to the auxiliary grounding rod 11 and be discharged through the water outlet 102. At the same time, under the action of the high-pressure airflow, the air pressure in the groove 201 and the water storage pipe 2 is unbalanced. At this time, the water in the water storage pipe 2 will pass through the water hole 101 and be dispersed and atomized by the high-pressure airflow and discharged, so as to quickly cool the grounding rod 1 and the auxiliary grounding rod 11, thereby achieving the effect of reducing rent, avoiding excessive high-voltage current causing the grounding rod 1 and the auxiliary grounding rod 11 to be burned and damaged, and then causing the lightning current to fail to be eliminated in time, resulting in damage to the photovoltaic power generation. Embodiment 3

[0031] Further, see Figure 1 , Figure 2 , Figure 3 , Figure 5Compared with the second embodiment, in this embodiment, the directional dumping assembly is used to make the ground-guiding rod 1 dump in a directional manner when it dumps. The directional dumping assembly consists of a fixed block 4, a support plate 3, a vertical rod 6, a horizontal rod 8, three collars 7, and three connecting rods 13. A through groove 9 is provided on the outer wall of the ground-guiding rod 1. The fixed block 4 and the support plate 3 are fixedly connected to the ground by bolts. A sliding groove 5 is provided on the inner wall of the fixed block 4. A reset spring 301 is fixedly connected to the inner wall of the sliding groove 5. The reset spring 301 is away from the sliding groove. One end of the slot 5 is fixedly connected to the vertical rod 6, the vertical rod 6 is slidably connected to the slide slot 5, the end of the vertical rod 6 away from the slide slot 5 is fixedly connected to the cross bar 8, the end of the cross bar 8 away from the vertical rod 6 passes through the through slot 9, the end of the cross bar 8 away from the vertical rod 6 is fixedly connected to the blocking plate 302, the upper end of the blocking plate 302 is fixedly connected to the arc stopper 303, three through holes 202 are opened on the support plate 3, and three connecting rods 13 are fixedly connected to the side wall of the vertical rod 6 at equal intervals. The three connecting rods 13 are respectively The three connecting rods 13 pass through the three through holes 202, and the ends of the three connecting rods 13 away from the vertical rod 6 are fixedly connected to the three sliding cylinders 404 respectively. The three sliding rods 405 are slidably connected to the inner wall of the sliding cylinder 404 respectively. The maximum stroke of the sliding rod 405 is less than the sliding stroke of the vertical rod 6 in the sliding groove 5. At the same time, the moving stroke of the sliding rod 405 is just equal to the stroke of the arc stopper 303 set on the blocking plate 302 moving to the notch of the through groove 9. The ends of the three-point sliding rod 405 away from the sliding cylinder 404 are respectively three sleeves. The ring 7 is fixedly connected, and the three rings 7 are slidably mounted on the outer wall of the ground guide rod 1 respectively. The upper ends of the three connecting rods 13 are fixedly connected with a clamping block 401. Three clamping grooves 402 are opened on the support plate 3. The three clamping grooves 402 are respectively connected with the three through holes 202. The three clamping blocks 401 are slidably connected with the three clamping grooves 402 respectively. The lower ends of the three connecting rods 13 are fixedly connected with a spring 403, and one end of the spring 403 away from the lower end of the connecting rod 13 is fixedly connected with the through hole 202.

[0032] After lightning strikes the lightning rod 10, the compressed air bag 12 is damaged and the high-pressure gas escapes. At the same time, the high-pressure gas will squeeze the baffle plate 302. The baffle plate 302 will move downward and then drive the vertical rod 6 to move downward through the cross bar 8. When the vertical rod 6 moves downward, it will drive the connecting rod 13 to compress the spring 403. At the same time, the connecting rod 13 drives the ring 7 to move downward through the slide bar 405. At the same time, the connecting rod 13 drives the block 401 to leave the slot 402. At this time, the connecting rod 13 loses its restriction, and the vertical rod 6 loses its restriction. At this time, the reset spring 301 will push the vertical rod 6 to move in the slide slot 5, and the vertical rod 6 will pull the connecting rod while moving. 13. When the connecting rod 13 moves, it will pull the sliding rod 405 to slide in the sliding cylinder 404, and make the connecting rod 13 lengthen until the block 401 is away from the slot 402. At this time, the connecting rod 13 applies a lateral pulling force to the grounding rod 1 through the sliding rod 405 to prevent the grounding rod 1 from falling toward the location of the photovoltaic power plant and causing damage to the photovoltaic power plant when the grounding rod 1 is deformed and broken due to lightning strike. At the same time, when the vertical rod 6 moves, the blocking plate 302 will be pulled out through the horizontal rod 8. At the same time, after the blocking plate 302 is pulled out, the arc block 303 set above the blocking plate will block the through slot 9 to prevent high-pressure air from flowing out of the through slot 9. Embodiment 4

[0033] Further, see Figure 4 Compared with the third embodiment, in this embodiment, a filter box 501 is provided inside the auxiliary grounding rod 11, and calcium chloride powder is stored inside the filter box 501.

[0034] When the lead compressed air bag 12 arranged inside the earth-guiding rod 1 is damaged by lightning and releases high-pressure airflow, it drives the water in the water storage pipe 2 to pass through the water hole 101 and is dispersed and discharged by the high-pressure airflow. At the same time, the atomized water vapor passes through the filter box 501 and mixes with the calcium chloride powder inside the filter box 501, and is discharged into the ground through the water outlet 102 and improves the resistivity of the soil, thereby increasing the conductivity of the soil and making it easier for lightning to be absorbed and discharged by the earth.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic module lightning protection device, comprising a lightning termination component and a cooling component, characterized in that: The lightning termination assembly is composed of a lightning termination rod (10) and a grounding rod (1); the lightning termination rod (10) is fixedly connected to the upper end of the grounding rod (1); and a directional tilting assembly is provided on the outer wall of the grounding rod (1) for tilting the grounding rod (1) in a directional manner; The directional tipping assembly comprises a fixed block (4), a support plate (3), a vertical rod (6), a horizontal rod (8), three collars (7), three connecting rods (13), three sliding cylinders (404) and three sliding rods (405); a through groove (9) is provided on the outer wall of the ground-guiding rod (1); the fixed block (4) and the support plate (3) are fixedly connected to the ground by bolts; a sliding groove (5) is provided on the inner wall of the fixed block (4); a return spring (301) is fixedly connected to the inner wall of the sliding groove (5); an end of the return spring (301) away from the sliding groove (5) is fixedly connected to the vertical rod (6); the vertical rod (6) is slidably connected to the sliding groove (5); an end of the vertical rod (6) away from the sliding groove (5) is fixedly connected to the horizontal rod (8); an end of the horizontal rod (8) away from the vertical rod (6) passes through the through groove ( 9), one end of the cross bar (8) away from the vertical bar (6) is fixedly connected to a blocking plate (302), the upper end of the blocking plate (302) is fixedly connected to an arc stopper (303), the support plate (3) is provided with three through holes (202), three connecting rods (13) are fixedly connected to the side wall of the vertical bar (6) at equal intervals, the three connecting rods (13) respectively penetrate the three through holes (202), the ends of the three connecting rods (13) away from the vertical bar (6) are respectively fixedly connected to three sliding cylinders (404), the three sliding rods (405) are respectively slidably connected to the inner wall of the sliding cylinder (404), the ends of the three sliding rods (405) away from the sliding cylinder (404) are respectively fixedly connected to three rings (7), and the three rings (7) are respectively slidably sleeved on the outer wall of the ground guide rod (1); The cooling component is composed of a water storage pipe (2) and a plurality of auxiliary grounding rods (11); the water storage pipe (2) is sleeved on the outer wall of the grounding rod (1); and the plurality of auxiliary grounding rods (11) are fixedly connected to the axial outer wall of the grounding rod (1) at equal intervals.

2. A photovoltaic module lightning protection device according to claim 1, characterized in that: The earthing rod (1) has a groove (201) formed therein, the outer wall of the earthing rod (1) is provided with a section of a water storage pipe (2) having water holes (101) densely distributed at equal intervals, the auxiliary earthing rod (11) is hollow, the auxiliary earthing rod (11) has water outlet holes (102) densely distributed at equal intervals, and the auxiliary earthing rod (11) penetrates the outer wall of the earthing rod (1) and communicates with the groove (201).

3. A photovoltaic module lightning protection device according to claim 1, characterized in that: A compressed air bag (12) is provided on the inner wall of the groove (201); the compressed air bag (12) is located at the upper end of the blocking plate (302); and the compressed air bag (12) is made of lead.

4. A photovoltaic module lightning protection device according to claim 1, characterized in that: The upper ends of the three connecting rods (13) are fixedly connected with a clamping block (401), the support plate (3) is provided with three clamping slots (402), the three clamping slots (402) are respectively connected with the three through holes (202), the three clamping blocks (401) are respectively slidably connected with the three clamping slots (402), the lower ends of the three connecting rods (13) are fixedly connected with a spring (403), and one end of the spring (403) away from the lower end of the connecting rod (13) is fixedly connected with the through hole (202).

5. A photovoltaic module lightning protection device according to claim 1, characterized in that: A filter box (501) is provided inside the auxiliary grounding rod (11), and calcium chloride powder is stored inside the filter box (501).

6. A photovoltaic module lightning protection device according to claim 1, characterized in that: The lightning rod (10) is a multi-pin lightning rod, which can increase the protection range of the lightning protection device to the greatest extent.

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