An overhead line lightning trap device for reducing the amplitude of induced lightning current

Abstract

The present invention relates to the technical field of lightning trap devices, and discloses an overhead line lightning trap device for reducing the amplitude of induced lightning current. The present invention comprises a plurality of overhead frames, wherein the top sides of the plurality of overhead frames are fixedly mounted with lightning trap boxes, the top sides of the lightning trap boxes are fixedly mounted with lightning rods, and the bottom sides of the lightning trap boxes are fixedly mounted with leads. In the present invention, a block is provided. When a thundercloud approaches the lightning rod, electric charges with polarity opposite to that of the thundercloud are transferred from the earth to the lightning rod, forming electrostatic induction of the lightning rod to the thundercloud. The lightning current strikes the lightning rod, and the current is transmitted to the earth through the block and the lead. In the process of the current passing through, the block can effectively weaken the passing current and reduce the breakdown value of the lightning current, thereby preventing surrounding electronic equipment from being damaged by breakdown due to being unable to withstand the current. At the same time, the destructive power to surrounding buildings and some protective facilities can be reduced, thereby reducing lightning damage and reducing the economic and property losses caused.

Description

Technical Field

[0001] The present invention relates to the technical field of lightning trap devices, in particular to an overhead line lightning trap device for reducing the amplitude of induced lightning current. Background Art

[0002] Overhead lines primarily refer to overhead lines, erected above the ground. These lines transmit electricity by attaching transmission conductors to towers erected on the ground using insulators. While relatively easy to install and maintain, they are also relatively inexpensive. However, they are susceptible to weather and environmental factors (such as strong winds, lightning strikes, dirt, ice, and snow), which can cause failures. Furthermore, the entire transmission corridor occupies a significant area of ​​land, potentially causing electromagnetic interference to the surrounding environment. However, after attracting lightning, existing lightning arrester devices require the grounding resistance of the lightning rod to be less than or equal to 10 ohms. Even with a maximum grounding resistance of 10 ohms, a lightning current of 10 kA corresponds to a ground potential of 100,000 volts. If the grounding point of electronic equipment is close to the lightning rod's grounding element, the ground potential is significantly higher, making it difficult for the equipment to withstand the damage and causing burns. This poses a significant threat to surrounding electronic products. Furthermore, excessive current can directly break down the lead wires, damaging surrounding buildings and protective facilities, resulting in lightning damage and direct economic and financial losses. Summary of the Invention

[0003] In order to solve the above-mentioned problems, the present invention provides an overhead line lightning trap device for reducing the amplitude of induced lightning current.

[0004] The present invention provides an overhead line lightning trap device for reducing the amplitude of induced lightning current, which adopts the following technical solutions:

[0005] An overhead line lightning trap device for reducing the amplitude of induced lightning current includes multiple overhead frames, each of which has a lightning trap box fixedly installed on its top side, a lightning rod fixedly installed on its top side, and a lead fixedly installed on its bottom side. One end of each of the lightning rod and the lead is fixedly connected to a lead plate, a same conductor is fixedly connected between two of the lead plates, and a blocking block is fixedly installed on the conductor.

[0006] By adopting the above technical solution and setting up a block, when a thundercloud approaches the lightning rod, an electric charge with the opposite polarity to that of the thundercloud is transferred from the earth to the lightning rod, forming an electrostatic induction between the lightning rod and the thundercloud, and the lightning current strikes the lightning rod. The current is transmitted to the earth through the block and the lead. In the process of the current passing through, the block can effectively weaken the passing current and reduce the breakdown value of the lightning current, thereby avoiding the surrounding electronic equipment from being damaged by the breakdown due to being unable to withstand it. At the same time, it can reduce the destructive power to the surrounding buildings and some protective facilities, weaken the lightning damage, and reduce the economic and property losses caused.

[0007] Preferably, two supporting blocks are fixedly connected to the inner walls on the left and right sides of the mine prison box, and four supporting blocks are grouped in pairs and are fixedly connected to electric heating rods.

[0008] By adopting the above technical solution and setting up an electric heating rod, the electric heating rod can heat the environment inside the lightning prison box when working, thereby increasing the resistance of the block and weakening the passing value of the lightning current, thereby effectively improving the protection.

[0009] Preferably, the blocking block is made of metal.

[0010] By adopting the above technical solution and providing a block made of metal material, when the block is in an environment where the temperature can be increased, the resistance value of the block made of metal material can increase as the temperature increases.

[0011] Preferably, the inner wall of the mine prison box is fixedly connected with four connecting rods, the top sides of the four connecting rods are rotatably connected with rotating rods, the outer sides of the four rotating rods are fixedly connected with fan blades, the outer sides of the four rotating rods are fixedly sleeved with sprockets, the outer sides of the four sprockets are meshed with the same chain, the right inner wall of the mine prison box is fixedly connected with a motor, and the output shaft of the motor is fixedly connected to one of the four rotating rods.

[0012] By adopting the above technical solution and setting the fan blades, when the electric heating rod is working to heat up, the rotation of the fan blades can accelerate the gas flow rate in the lightning box, thereby improving the heating efficiency and reducing heat loss.

[0013] Preferably, the four wind blades are all inclined at thirty degrees.

[0014] By adopting the above technical solution and setting the fan blades inclined at 30 degrees, the fan blades can more effectively drive the gas flow rate to increase when rotating, so that the kinetic energy of the fan blades can be maximized.

[0015] Preferably, a corrugated plate is fixedly mounted on the inner wall of the mine box.

[0016] By adopting the above technical solution and providing a wave plate, the wave plate can reflect the heat inside the mine box, thereby effectively reducing the speed of heat loss.

[0017] Preferably, the wave plate is made of high-expansion foam.

[0018] By adopting the above technical solution and arranging the corrugated plate made of high-expansion foam, the interior of the mine box can be effectively insulated and the speed of temperature reduction can be slowed down.

[0019] Preferably, an insulating tube is fixedly connected to the inner wall of the bottom side of the mine-prison box, and the blocking block is located inside the insulating tube.

[0020] By adopting the above technical solution and providing an insulating tube, the insulating tube can prevent the blocking block from being penetrated and the interior of the mine box from being damaged, thereby achieving a certain protective effect on the interior of the mine box.

[0021] In summary, the present invention has the following beneficial technical effects:

[0022] By setting up the block, when the thundercloud approaches the lightning rod, the electric charge with the opposite polarity to the thundercloud is transferred from the earth to the lightning rod, forming an electrostatic induction of the lightning rod to the thundercloud, and the lightning current strikes the lightning rod. The current is transmitted to the earth through the block and the lead. In the process of the current passing through, the block can effectively weaken the passing current and reduce the breakdown value of the lightning current, thereby avoiding the surrounding electronic equipment from being damaged by the breakdown due to being unable to withstand it. At the same time, it can reduce the destructive power to the surrounding buildings and some protective facilities, weaken the lightning damage, and reduce the economic and property losses caused.

[0023] By setting up an electric heating rod, the environment inside the lightning prison box can be heated when the electric heating rod is working, thereby increasing the resistance of the block and weakening the passing value of the lightning current, thereby effectively improving the protection.

[0024] By setting the fan blades, when the electric heating rod is working to heat up, the rotation of the fan blades can accelerate the gas flow rate in the prison box, thereby improving the heating efficiency and reducing heat loss.

[0025] By providing the insulating tube, the insulating tube can prevent the blocking block from being penetrated and causing damage to the interior of the mine box, thereby achieving a certain protective effect on the interior of the mine box. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention.

[0027] Figure 2 It is a schematic cross-sectional structural diagram of an embodiment of the present invention.

[0028] Figure 3 This is an embodiment of the present invention Figure 2 A partial enlarged view of part A in the middle.

[0029] Figure 4 This is a schematic diagram of the structure of the overhead frame, lightning box and lightning rod of the embodiment of the present invention.

[0030] Figure 5 This is a structural diagram of the connection between the mine box and the insulating tube according to an embodiment of the present invention.

[0031] Explanation of the accompanying symbols: 1. Overhead frame; 2. Lightning box; 3. Lightning rod; 4. Lead wire; 5. Lead plate; 6. Wire; 7. Block; 8. Support block; 9. Heating rod; 10. Connecting rod; 11. Rotating rod; 12. Fan blade; 13. Sprocket; 14. Chain; 15. Motor; 16. Corrugated plate; 17. Insulating tube. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 The present invention is described in further detail.

[0033] The embodiment of the present invention discloses an overhead line lightning trap device for reducing the amplitude of induced lightning current. Figure 1-5 , an overhead line lightning arrester device for reducing the amplitude of induced lightning current, comprising multiple overhead frames 1, each of which is fixedly equipped with a lightning arrester box 2 on the top side of each overhead frame 1, and a lightning rod 3 on the top side of the lightning arrester box 2. When a thundercloud approaches the lightning rod 3, an electric charge with the opposite polarity to that of the thundercloud is transferred from the earth to the lightning rod 3, forming an electrostatic induction of the lightning rod 3 to the thundercloud, and a lead 4 is fixedly installed on the bottom side of the lightning arrester box 2. One end of the lightning rod 3 and the lead 4 are fixedly connected with a lead plate 5, and the same conductor 6 is fixedly connected between the two lead plates 5. The lightning current strikes the lightning rod 3, and the current is transmitted to the earth through a block 7 and the lead 4. A block 7 is fixedly installed on the conductor 6. The block 7 can effectively weaken the passing current and reduce the breakdown value of the lightning current, thereby preventing the surrounding electronic equipment from being damaged by breakdown due to being unable to withstand it. At the same time, it can reduce the destructive force on the surrounding buildings and some protective facilities, weaken the lightning damage, and reduce the economic and property losses caused.

[0034] In the present invention, two supporting blocks 8 are fixedly connected to the inner walls on both sides of the left and right sides of the lightning prison box 2. Four supporting blocks 8 are grouped in pairs and are fixedly connected to electric heating rods 9. By setting the electric heating rods 9, the electric heating rods 9 can heat the environment inside the lightning prison box 2 when working, thereby increasing the resistance of the blocking block 7 and weakening the passing value of the lightning current, thereby effectively improving the protection.

[0035] In the present invention, the block 7 is made of metal. By providing the block 7 made of metal, when the block 7 is in a temperature-increasing environment, the resistance value of the block 7 made of metal can increase as the temperature rises.

[0036] In the present invention, four connecting rods 10 are fixedly connected to the inner wall of the mine box 2, and the top sides of the four connecting rods 10 are rotatably connected to rotating rods 11. The outer sides of the four rotating rods 11 are fixedly connected to fan blades 12. The outer sides of the four rotating rods 11 are fixedly sleeved with sprockets 13, and the outer sides of the four sprockets 13 are meshed with the same chain 14. The right inner wall of the mine box 2 is fixedly connected to a motor 15, and the output shaft of the motor 15 is fixedly connected to one of the four rotating rods 11. By providing the fan blades 12, when the electric heating rod 9 is working to heat up, the rotation of the fan blades 12 can accelerate the gas flow rate in the mine box 2, thereby improving the heating efficiency and reducing heat loss.

[0037] In the present invention, the four blades 12 are all inclined at 30 degrees. By setting the blades 12 inclined at 30 degrees, the blades 12 can more effectively drive the gas flow rate to increase when rotating, so that the kinetic energy of the blades 12 can be maximized.

[0038] In the present invention, a corrugated plate 16 is fixedly mounted on the inner wall of the mine-prison box 2. By providing the corrugated plate 16, the corrugated plate 16 can reflect the heat inside the mine-prison box 2, thereby effectively reducing the speed of heat loss.

[0039] In the present invention, the wave plate 16 is made of high-expansion foam. By providing the wave plate 16 made of high-expansion foam, the interior of the mine box 2 can be effectively insulated and the speed of temperature reduction can be slowed down.

[0040] In the present invention, an insulating tube 17 is fixedly connected to the inner wall of the bottom side of the mine prison box 2, and the block 7 is located inside the insulating tube 17. By providing the insulating tube 17, the insulating tube 17 can prevent the block 7 from being pierced and causing damage to the interior of the mine prison box 2, thereby achieving a certain protective effect on the interior of the mine prison box 2.

[0041] The implementation principle of the overhead line lightning arrester device for reducing the amplitude of induced lightning current in the embodiment of the present invention is as follows: in thunderstorm weather, the thundercloud approaches the lightning rod 3, and the charge with the opposite polarity to the thundercloud is transferred from the earth to the lightning rod 3, forming electrostatic induction of the lightning rod 3 to the thundercloud, thereby attracting lightning. When the thundercloud discharges to the lightning rod 3 to form a lightning strike, the block 7 presents high impedance to suppress the amplitude of the lightning current, thereby preventing the ground potential at the location of the connected earth grounding body from exceeding the set value, thereby realizing lightning protection for buildings and electrical and electronic equipment in the buildings. The grounding point of the grounding tower in the overhead frame 1 and the tower body potential of the grounding tower exceed the set value, thereby eliminating the counter-strike lightning, and the lightning current strikes the lightning rod 3. The current is transmitted to the earth through the block 7 and the lead 4. When the current passes through During the process, the block 7 can effectively weaken the passing current and reduce the breakdown value of the lightning current, thereby preventing the surrounding electronic equipment from being broken down and damaged due to being unable to withstand it. At the same time, it can reduce the destructive power to the surrounding buildings and some protective facilities, weaken the lightning damage, and reduce the economic and property losses caused. The block 7 is made of metal material. When the block 7 is in an environment where the temperature can be increased, the resistance of the block 7 made of metal material can increase as the temperature rises. When the electric heating rod 9 is working, it can heat the environment inside the lightning box 2, thereby increasing the resistance of the block 7 and weakening the passing value of the lightning current, thereby effectively improving the protection. The wave plate 16 can reflect the heat inside the lightning box 2, thereby effectively reducing the rate of heat loss.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An overhead line lightning arrester for reducing the amplitude of induced lightning current, comprising a plurality of overhead frames (1), characterized in that: A plurality of overhead frames (1) are fixedly mounted with a lightning box (2) on the top side, a lightning rod (3) is fixedly mounted on the top side of the lightning box (2), a lead (4) is fixedly mounted on the bottom side of the lightning box (2), one end of the lightning rod (3) and the lead (4) are fixedly connected to a lead plate (5), a same conductor (6) is fixedly connected between the two lead plates (5), and a blocking block (7) is fixedly mounted on the conductor (6); two support blocks (8) are fixedly connected to the inner walls on the left and right sides of the lightning box (2), and four support blocks (8) are fixedly connected to an electric heating rod (9) in pairs; the blocking block (7) Made of metal; the inner wall of the mine box (2) is fixedly connected with four connecting rods (10), the top sides of the four connecting rods (10) are rotatably connected with rotating rods (11), the outer sides of the four rotating rods (11) are fixedly connected with fan blades (12), the outer sides of the four rotating rods (11) are fixedly sleeved with sprockets (13), the outer sides of the four sprockets (13) are meshedly connected with the same chain (14), the right inner wall of the mine box (2) is fixedly connected with a motor (15), and the output shaft of the motor (15) is fixedly connected to one of the four rotating rods (11).

2. The overhead line lightning trap device for reducing the amplitude of induced lightning current according to claim 1, characterized in that: The four wind blades (12) are all inclined at thirty degrees.

3. The overhead line lightning trap device for reducing the amplitude of induced lightning current according to claim 1, characterized in that: A corrugated plate (16) is fixedly mounted on the inner wall of the mine-prison box (2).

4. The overhead line lightning trap device for reducing the amplitude of induced lightning current according to claim 3, characterized in that: The wave plate (16) is made of high foam.

5. The overhead line lightning trap device for reducing the amplitude of induced lightning current according to claim 1, characterized in that: An insulating tube (17) is fixedly connected to the inner wall of the bottom side of the mine-prison box (2), and the blocking block (7) is located inside the insulating tube (17).

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