Self-energy-consumption lightning protection device
By setting up a solid insulated rod and self-consumable energy-consumable components between the flash connector and the lower pillar of the lightning protection device, the problem that the existing lightning protection device cannot establish a conductive channel when the intensity of the lightning cloud electric field changes is achieved, and the effect of effective lightning protection and overvoltage damage is achieved.
Patent Information
- Application Number
- CN202510319128.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2025-04-29
AI Technical Summary
When the existing lightning protection device reaches a certain level of the electric field strength of the thunder cloud, the tip may release the upward pilot earlier or later, resulting in the failure of the conductive channel to be successfully established, and then causing the lightning to hit the protected object.
A solid insulated rod and a self-consumable energy component are arranged between the flasher and the lower pillar. The charges will be combined and returned to zero in the self-consumable energy component to avoid an upward pilot.
By eliminating the upward pilot, the lightning protection device can effectively avoid lightning strikes, ensure the safety of the protection object, and reset the charge to zero in other overvoltage situations to prevent overvoltage damage.
Smart Images
Figure CN119905902A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of lightning protection, in particular to a self-energy consumption lightning protection device. Background Art
[0002] The lightning protection device guides lightning to the device itself and discharges the lightning current into the earth quickly and safely, thereby protecting the safety of people and buildings.
[0003] In the related art, when the electric field strength of a thundercloud reaches a certain level, the tip of the lightning protection device will actively release the induced charge due to the extremely high electric field strength, forming an upward leader, which will meet the downward leader of the thundercloud and establish a conductive channel. However, if the timing of the upward leader is delayed or earlier than the downward leader generated by the thundercloud, the conductive channel will not be successfully established, causing lightning to strike the protected object. Summary of the invention
[0004] The technical task of the present invention is to address the above shortcomings and provide a self-energy-consuming lightning protection device. A solid insulating rod and a self-energy-consuming component are arranged between the lightning rod and the lower support. The charge will converge and return to zero in the self-energy-consuming component, and will not produce an upward leader for the lightning. The lightning will not recognize the device, thereby achieving the effect of lightning protection.
[0005] To achieve the above object, the present invention provides the following technical solutions:
[0006] A self-energy-consuming lightning protection device comprises a lightning rod, an insulating rod fixedly connected to the bottom of the lightning rod, and a lower support fixedly connected to the bottom of the insulating rod, wherein the insulating rod is made of solid insulating material, a metal coil is arranged on the outer surface of the insulating rod, an insulating layer is wrapped around the metal coil, a plurality of sheds are fixedly connected to the outer surface of the insulating layer, two ends of the metal coil are respectively conductively connected to the lightning rod and the lower support, and the metal coil is conductively connected to a self-energy-consuming component.
[0007] In some embodiments, the self-energy consumption component includes a first conductive rod conductively connected to one end of the metal coil, a second conductive rod conductively connected to the other end of the metal coil, and a third conductive rod conductively connected to the midpoints of both ends of the metal coil. The first conductive rod and the second conductive rod are both L-shaped structures, and the third conductive rod is a rod-shaped structure. The rod-shaped parts of the first conductive rod and the second conductive rod close to the metal coil are perpendicular to the axial direction of the insulating rod, and the third conductive rod is perpendicular to the axial direction of the insulating rod. The first conductive rod, the second conductive rod, and the third conductive rod are respectively provided with a first ball head, a second ball head, and a third ball head at one end away from the metal coil, and the distance between the first ball head and the third ball head is equal to the distance between the second ball head and the third ball head.
[0008] In some embodiments, the self-energy consumption component also includes a first fixing member for fastening the lightning rod and the first conductive rod, a second fixing member for fastening the lower support and the second conductive rod, and a third fixing member for fixing the insulating rod and the third conductive rod. The first fixing member, the second fixing member and the third fixing member are all made of stainless steel.
[0009] In some embodiments, the distance between the first ball head and the third ball head and the distance between the second ball head and the third ball head are both 5 cm-10 cm.
[0010] In some embodiments, the diameters of the first ball head, the second ball head and the third ball head are equal, and the diameters are 1 cm-2 cm.
[0011] In some embodiments, the lightning receptor, the metal coil, the first conductive rod, the second conductive rod, the third conductive rod, the first ball head, the second ball head, the third ball head and the lower support are all made of metal.
[0012] In some embodiments, the insulating rod, the insulating layer and the shed are all made of silicone rubber, and the sheds are arranged equidistantly along the axial direction of the insulating rod.
[0013] In some embodiments, the number of turns of the metal coil is 32-60 turns.
[0014] In some embodiments, it also includes a base conductively connected to the lower support, and the base is made of metal.
[0015] In some embodiments, it also includes a lightning monitoring device disposed on the lower support.
[0016] Compared with the prior art, the advantages and positive effects of the present invention are as follows: a solid insulating rod and a self-consumption component are arranged between the lightning rod and the lower support. When lightning passes through the equipment protected by this device, the charge will converge and return to zero in the self-consumption component, and will not produce an upward leader for the lightning. The lightning will not recognize the device, thereby achieving the effect of lightning protection; when other overvoltages pass through the equipment protected by this device, the self-consumption component can return the charge in the device to zero, and will not cause overvoltage damage. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 A schematic front view of an embodiment of the present application is shown;
[0019] Figure 2 A schematic diagram of a three-dimensional structure after the insulating layer and the shed skirt are hidden in one embodiment of the present application is shown;
[0020] Figure 3 A right side view and a cross-sectional schematic diagram of part A of an embodiment of the present application are shown;
[0021] Figure 4 Show this application Figure 3 The enlarged schematic diagram of point B in the middle;
[0022] Figure 5 A schematic diagram of a three-dimensional structure in another embodiment of the present application is shown;
[0023] Figure 6 A photo showing the layout of a testing laboratory according to an embodiment of the present application;
[0024] Figure 7 A photo showing the lightning strike moment of an embodiment of the present application is shown;
[0025] Figure 8 A waveform diagram showing a lightning impulse voltage test and a cutoff time Tc according to an embodiment of the present application is shown;
[0026] Fig. 9 A waveform diagram of voltage collection of the third ball head to the ground in one embodiment of the present application is shown;
[0027] Fig.10 A waveform diagram of voltage collection of the first ball head to the ground in one embodiment of the present application is shown;
[0028] In the figure: 100, lightning arrester; 200, insulating rod; 210, metal coil; 220, insulating layer; 230, umbrella skirt; 300, lower support; 310, lightning monitoring device; 400, self-consumption component; 410, first conductive rod; 411, first ball head; 412, first fixing piece; 420, second conductive rod; 421, second ball head; 422, second fixing piece; 430, third conductive rod; 431, third ball head; 432, third fixing piece; 500, base. DETAILED DESCRIPTION
[0029] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0031] Figure 1-4 It is shown that an embodiment of the present application provides a self-energy consumption lightning protection device, including a lightning rod 100, an insulating rod 200 fixedly connected to the bottom of the lightning rod 100, and a lower support 300 fixedly connected to the bottom of the insulating rod 200, the insulating rod 200 is made of solid insulating material, a metal coil 210 is arranged on the outer surface of the insulating rod 200, an insulating layer 220 is wrapped around the metal coil 210, a plurality of sheds 230 are fixedly connected to the outer surface of the insulating layer 220, two ends of the metal coil 210 are respectively conductively connected to the lightning rod 100 and the lower support 300, and the metal coil 210 is conductively connected to the self-energy consumption component 400.
[0032] That is, the metal coil 210 is wound around the outer surface of the insulating rod 200, and the insulating layer 220 wraps the metal coil 210 and the insulating rod 200, so that the metal coil 210 is not exposed to the air.
[0033] It should be noted that the specific connection method of the conductive connection is not limited in this application, for example: fixed connection, contact connection, as long as it is a connection method that can conduct electricity.
[0034] In some embodiments, the self-consumption energy component 400 includes a first conductive rod 410 conductively connected to one end of the metal coil 210, a second conductive rod 420 conductively connected to the other end of the metal coil 210, and a third conductive rod 430 conductively connected to the midpoints of both ends of the metal coil 210. The first conductive rod 410 and the second conductive rod 420 are both L-shaped structures, and the third conductive rod 430 is a rod-shaped structure. The rod-shaped parts of the first conductive rod 410 and the second conductive rod 420 close to the metal coil 210 are perpendicular to the axial direction of the insulating rod 200, and the third conductive rod 430 is perpendicular to the axial direction of the insulating rod 200. The first conductive rod 410, the second conductive rod 420, and the third conductive rod 430 are respectively provided with a first ball head 411, a second ball head 421, and a third ball head 431 at one end away from the metal coil 210, and the distance between the first ball head 411 and the third ball head 431 is equal to the distance between the second ball head 421 and the third ball head 431.
[0035] That is to say, the first conductive rod 410, the second conductive rod 420 and the third conductive rod 430 are located in the same plane, the first conductive rod 410, the second conductive rod 420 and the third conductive rod 430 are all conductively connected to the metal coil 210, the position where the third conductive rod 430 is connected to the metal coil 210 is at the midpoint between the two ends of the metal coil 210, and the number of turns and direction of the metal coil 210 between the third conductive rod 430 and the first conductive rod 410 are the same as the number of turns and direction of the metal coil 210 between the second conductive rod 420 and the third conductive rod 430.
[0036] In some embodiments, the self-energy consumption component 400 also includes a first fixing member 412 for fastening the lightning rod 100 and the first conductive rod 410, a second fixing member 422 for fastening the lower support 300 and the second conductive rod 420, and a third fixing member 432 for fixing the insulating rod 200 and the third conductive rod 430. The first fixing member 412, the second fixing member 422 and the third fixing member 432 are all made of stainless steel.
[0037] It should be noted that the connection method between the first fixing member 412 and the lightning rod 100 and the first conductive rod 410 is not limited in this application, for example: the first fixing member 412 is fixedly connected to the lightning rod 100, the first conductive rod 410 is inserted into the first fixing member 412 and contacts with the lightning rod 100, and the first conductive rod 410 is fastened to the first fixing member 412 by bolts; the connection method between the second fixing member 422 and the lower support 300 and the second conductive rod 420 is not limited in this application, for example: the second fixing member 422 is fixedly connected to the lower support 300, the second conductive rod 420 is inserted into the second fixing member 422 and contacts with the lower support 300, and the second conductive rod 420 is fastened to the second fixing member 422 by bolts; the connection method between the third fixing member 432 and the insulating rod 200 and the third conductive rod 430 is not limited in this application, for example: the third fixing member 432 is fixedly connected to the insulating rod 200 and the third conductive rod 430.
[0038] In some embodiments, the distance between the first ball head 411 and the third ball head 431 and the distance between the second ball head 421 and the third ball head 431 are both 5 cm-10 cm.
[0039] In some embodiments, the diameters of the first ball head 411 , the second ball head 421 and the third ball head 431 are equal, and the diameters are 1 cm-2 cm.
[0040] In some embodiments, the lightning receptor 100, the metal coil 210, the first conductive rod 410, the second conductive rod 420, the third conductive rod 430, the first ball head 411, the second ball head 421, the third ball head 431 and the lower support 300 are all made of metal.
[0041] In some embodiments, the insulating rod 200 , the insulating layer 220 , and the shed 230 are all made of silicone rubber, and the shed 230 are arranged equidistantly along the axial direction of the insulating rod 200 .
[0042] It should be noted that the function of the shed 230 is to increase the creepage distance.
[0043] In some embodiments, the diameter of the umbrella skirt 230 includes a large diameter and a small diameter. The umbrella skirt 230 is arranged with the large diameter and the small diameter at intervals along the axial direction of the insulating rod 200. The large diameter and the small diameter are arranged at intervals to make the electric field distribution more uniform. The values of the large diameter and the small diameter need to be determined according to the voltage that the umbrella skirt 230 is subjected to.
[0044] In some embodiments, the number of turns of the metal coil 210 is 32-60 turns.
[0045] That is to say, the number of turns of the coil between the first conductive rod 410 and the third conductive rod 430 is 16-30 turns, the number of turns of the coil between the second conductive rod 420 and the third conductive rod 430 is also 16-30 turns, and the number of turns between the first conductive rod 410 and the third conductive rod 430 is equal to the number of turns between the second conductive rod 420 and the third conductive rod 430.
[0046] In some embodiments, a base 500 is further included which is conductively connected to the lower support 300 and is made of metal.
[0047] It should be noted that the base 500 needs to be conductively connected at the use position to ensure that the charge can reach the lower support 300 through the base 500.
[0048] Figure 5 In another embodiment, a lightning monitoring device 310 is further included on the lower support 300 for monitoring the presence of lightning strikes, the number of lightning strikes, and the magnitude of lightning current.
[0049] When a thundercloud passes by, a leading discharge charge will flow from the earth to the self-consumption lightning protection device. The self-consumption lightning protection component 400 will drive the voltage U of the leading discharge charge movement, with the third ball head 431 as the zero point, and +U / 2 and -U / 2 on the first ball head 411 and the second ball head 421 respectively. +U / 2 and -U / 2 meet at the third ball head 431 and become zero. Therefore, no leading discharge to the air will be generated, and the thundercloud will not identify the equipment protected by this device, which plays a real role in lightning protection. Similarly, when lightning or other overvoltages pass through the equipment protected by this device due to other factors, the self-consumption lightning protection component 400 of this device will take the third ball head 431 as the zero point, and divide the lightning voltage or other overvoltage U into +U / 2 and -U / 2 on the first ball head 411 and the second ball head 421. Finally, the positive and negative voltages meet at the third ball head 431, and the voltage driving the charge movement becomes zero, and finally no lightning strike or overvoltage damage will occur.
[0050] In some embodiments, the effective protection range of the self-energy-consuming lightning protection device is 1-2 lightning wavelengths.
[0051] Figure 6A photo of the layout of a testing laboratory of one embodiment of the present application is shown, in which a lightning impulse voltage test is carried out, and the lightning impulse voltage is 1.2 / 50μs (1.2 / 50μs refers to a smooth lightning impulse full wave with a wavefront time T1 of 1.2μs and a half-wave peak time T2 of 50μs); Figure 7 A photo of a lightning strike moment according to an embodiment of the present application is shown. Figure 7 As shown, at the moment of lightning connection, a strong electric spark appeared between the tip of the lightning receptor and the upper end test board, while the first ball head 411, the second ball head 421 and the third ball head 431 were not punctured.
[0052] Figure 8 The lightning impulse voltage test and the cut-off time Tc waveform of an embodiment of the present application are shown in FIG. Figure 8 As shown, Tc = 12.18 μs. After repeating the experiment 10 times, the average Tc = 10.16 μs.
[0053] Fig. 9 FIG. 4 shows a waveform diagram of the voltage collected by the third ball head 431 to the ground in one embodiment of the present application. Fig. 9 As shown, the third ball head 431 can form a waveform with close positive and negative amplitudes at the moment of lightning contact, proving that voltages of +U / 2 and -U / 2 are formed on both sides of the third ball head 431. At the same time, voltages of +U / 2 and -U / 2 are also formed between the first ball head 411 and the third ball head 431 and between the second ball head 421 and the third ball head 431. Fig.10 FIG. 4 shows a waveform diagram of the voltage collected by the first ball head 411 to the ground in one embodiment of the present application. Fig.10 As shown, the starting point of the waveform is a negative voltage, and the first ball head 411 is closer to the lightning receptor, so it can be explained that the lightning protection device will not generate an upward leader to the thundercloud.
[0054] Through the above specific implementations, those skilled in the art can easily implement the present invention. However, it should be understood that the present invention is not limited to the above specific implementations. On the basis of the disclosed implementations, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions.
Claims
1. A self-energy-consuming lightning protection device, characterized in that: The invention comprises a lightning receptor (100), an insulating rod (200) fixedly connected to the bottom of the lightning receptor (100), and a lower support (300) fixedly connected to the bottom of the insulating rod (200), wherein the insulating rod (200) is made of solid insulating material, a metal coil (210) is arranged on the outer surface of the insulating rod (200), an insulating layer (220) is wrapped around the metal coil (210), a plurality of sheds (230) are fixedly connected to the outer surface of the insulating layer (220), two ends of the metal coil (210) are respectively conductively connected to the lightning receptor (100) and the lower support (300), and the metal coil (210) is conductively connected to a self-energy consumption component (400).
2. A self-energy-consuming lightning protection device according to claim 1, characterized in that: The self-consumption energy component (400) comprises a first conductive rod (410) conductively connected to one end of the metal coil (210), a second conductive rod (420) conductively connected to the other end of the metal coil (210), and a third conductive rod (430) conductively connected to the midpoints of the two ends of the metal coil (210), wherein the first conductive rod (410) and the second conductive rod (420) are both L-shaped structures, and the third conductive rod (430) is a rod-shaped structure, and the first conductive rod (410) and the second conductive rod (420) are close to one side of the metal coil (210). The rod-shaped portion is perpendicular to the axial direction of the insulating rod (200), the third conductive rod (430) is perpendicular to the axial direction of the insulating rod (200), and the first conductive rod (410), the second conductive rod (420) and the third conductive rod (430) are respectively provided with a first ball head (411), a second ball head (421) and a third ball head (431) at one end away from the metal coil (210), and the distance between the first ball head (411) and the third ball head (431) is equal to the distance between the second ball head (421) and the third ball head (431).
3. A self-energy-consuming lightning protection device according to claim 2, characterized in that: The self-energy consumption component (400) further comprises a first fixing member (412) for fastening the lightning receptor (100) and the first conductive rod (410), a second fixing member (422) for fastening the lower support (300) and the second conductive rod (420), and a third fixing member (432) for fixing the insulating rod (200) and the third conductive rod (430), wherein the first fixing member (412), the second fixing member (422) and the third fixing member (432) are all made of stainless steel.
4. A self-energy-consuming lightning protection device according to claim 2, characterized in that: The distance between the first ball head (411) and the third ball head (431) and the distance between the second ball head (421) and the third ball head (431) are both 5 cm to 10 cm.
5. A self-energy-consuming lightning protection device according to claim 4, characterized in that: The diameters of the first ball head (411), the second ball head (421) and the third ball head (431) are equal, and the diameters are 1 cm-2 cm.
6. A self-energy consumption lightning protection device according to claim 2, characterized in that: The lightning receptor (100), the metal coil (210), the first conductive rod (410), the second conductive rod (420), the third conductive rod (430), the first ball head (411), the second ball head (421), the third ball head (431) and the lower support (300) are all made of metal.
7. A self-energy-consuming lightning protection device according to claim 1, characterized in that: The insulating rod (200), the insulating layer (220) and the umbrella skirt (230) are all made of silicone rubber, and the umbrella skirt (230) is arranged equidistantly along the axial direction of the insulating rod (200).
8. A self-energy-consuming lightning protection device according to claim 1, characterized in that: The number of turns of the metal coil (210) is 32-60 turns.
9. A self-energy-consuming lightning protection device according to claim 1, characterized in that: It also includes a base (500) electrically connected to the lower support (300), and the base (500) is made of metal.
10. A self-energy-consuming lightning protection device according to claim 1, characterized in that: It also includes a lightning monitoring device (310) arranged on the lower support (300).