A high-voltage surge arrester with high seismic resistance

Abstract

This invention discloses a high-vibration-resistant high-voltage surge arrester, specifically relating to the field of surge arrester technology. It includes a surge arrester body, a buffer assembly, and an adjustment assembly. Through the buffer assembly, this invention can release the blockage of the vent hole when the surge arrester body experiences severe, large-amplitude vibrations. It can adjust the buffer rigidity, allowing the first piston to continue moving downwards for buffering, thus improving the buffering effect. Furthermore, as the first piston moves to the bottom of the first chamber, it gradually blocks the connecting hole, acting as a throttling device, gradually reducing the oil output within the connecting hole. This further slows the descent speed of the first piston, thus providing multi-stage buffering. This prevents buffer failure and impacts under large-amplitude vibrations, further improving the buffering effect and extending the service life of the surge arrester.

Description

Technical Field

[0001] This invention relates to the field of surge arrester technology, and more specifically, to a high-voltage surge arrester with high seismic resistance. Background Technology

[0002] A surge arrester is an electrical device used to protect electrical equipment from the hazards of high transient overvoltages during lightning strikes and to limit the duration and amplitude of follow current. Surge arresters are sometimes also called overvoltage protectors or overvoltage limiters.

[0003] Chinese patent application CN202211314098.9 discloses a surge arrester with shock absorption function, relating to the field of surge arrester technology. The invention includes a mounting box with two top rods slidingly passing through its upper surface. A mounting plate is fixedly connected to the upper end of the two top rods, and a surge arrester is fixedly connected to the upper surface of the mounting plate. A moving plate is fixedly connected to the lower end of the two top rods, and four springs are fixedly connected to the upper surface of the moving plate. The end of each spring away from the moving plate is fixedly connected to the top of the inner wall of the mounting box. The moving plate is slidably connected to the inner wall of the mounting box, and a shock-absorbing structure is provided on the lower surface of the moving plate. This invention, by setting a shock-absorbing structure, achieves the effect of canceling out the vibration of the surge arrester when it vibrates using damping plates. This prevents the surge arrester from vibrating again due to the spring force when it resets, avoiding secondary damage to the surge arrester and extending its service life.

[0004] Although the shock-absorbing structure of the above invention can prevent secondary damage to the surge arrester during reset, the surge arrester will be subjected to vibrations of different amplitudes due to different factors during use. If severe large-amplitude vibration occurs, the shock-absorbing structure cannot adjust the buffering rigidity according to the vibration amplitude. When the buffering limit is reached, an impact will still be generated, causing damage to the surge arrester. At the same time, when the surge arrester is continuously subjected to high voltage (such as frequent lightning strikes in a short period of time) and cannot fully release the energy, the generated energy will gradually accumulate. This will cause the surge arrester to overheat, which may lead to the burning of internal components or the explosion of the casing in severe cases, resulting in the failure of the surge arrester.

[0005] This invention provides a high-voltage surge arrester with high seismic resistance, aiming to solve the problems of existing surge arrester shock absorption structures being unable to adjust buffer rigidity according to vibration amplitude, which easily causes surge arrester damage, and surge arrester overheating and failure when continuous high voltage cannot fully release energy. Summary of the Invention

[0006] The purpose of this invention is to provide a high-voltage surge arrester with high seismic resistance, in order to solve the problems mentioned in the background art, such as the inability of the existing surge arrester's shock absorption structure to adjust the buffer rigidity according to the vibration amplitude, which easily causes damage to the surge arrester, and the inability of the surge arrester to fully release energy when the voltage is continuously high, which causes the surge arrester to overheat and fail.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-voltage surge arrester with high seismic resistance, comprising an arrester body, and further comprising:

[0008] A buffer assembly designed to adaptively adjust buffer stiffness based on vibration amplitude;

[0009] The regulating component is used to activate the backup grounding channel under continuous high voltage.

[0010] Preferably, the buffer component includes:

[0011] A mounting base with a first chamber and a second chamber;

[0012] A first piston component is slidably connected to the first chamber and has a support rod fixedly connected to its top. The support rod passes through the top of the mounting base and is connected to the surge arrester body.

[0013] The second piston component is slidably connected within the second chamber;

[0014] Multiple connecting holes are provided at the lower part of the first chamber and communicate with the second chamber to allow hydraulic oil to flow between the first chamber and the second chamber.

[0015] Preferably, a third chamber is provided above the second chamber, and an air vent is provided between the third chamber and the second chamber. A third piston is slidably connected in the third chamber, and a first elastic member is connected between the third piston and the third chamber for resetting the third piston.

[0016] Preferably, the adjustment component includes:

[0017] A conductive component fixed in the mounting groove at the top of the support rod is connected to the surge arrester body and the main grounding wire.

[0018] A conductive plate fixed within the mounting groove;

[0019] An adjustment cavity is formed inside the support rod and filled with a thermally expanding material;

[0020] A fourth piston component is slidably connected within the adjustment cavity, with a second elastic component connected to one side of the adjustment cavity and a support plate fixedly connected thereto.

[0021] Preferably, the support plate is fixedly connected to a conductive block and can extend to the mounting groove. The top of the mounting base is fixedly connected to a mounting block. The mounting base has a sliding groove. A conductive sheet for connecting a spare grounding wire is embedded in the sliding groove. One end of the conductive plate is slidably connected in the sliding groove.

[0022] Preferably, the conductive block is configured to extend into the mounting groove under the push of the thermally expanding material, so that the conductive element is in communication with the conductive plate;

[0023] The conductive plate is configured to contact the conductive sheet when the support rod moves downward.

[0024] Preferably, the buffer component further includes:

[0025] A first magnetic component is embedded on the outer periphery of the first piston component, and the mounting base is provided with a telescopic groove and an adjustment groove.

[0026] A sealing block that is slidably disposed in the expansion groove is fixedly connected to an adjustment plate that slides in the adjustment groove.

[0027] The second and third magnetic components are embedded in the adjustment plate.

[0028] Preferably, when the first piston is at the top, the first magnetic element and the second magnetic element, being of the same polarity, repel each other, pushing the sealing block to block the vent hole;

[0029] When the first piston moves down to the bottom, the first magnetic component and the third magnetic component attract each other due to their opposite polarities, pulling the sealing block to open the vent.

[0030] Preferably, a plurality of sealing plates are fixedly connected to the bottom of the first piston member, and the sealing plates are configured to gradually seal the corresponding connecting holes when the first piston member moves down to the bottom.

[0031] Preferably, the top of the first chamber is provided with an air outlet channel and a throttling channel, and the outer side of the support rod is fitted with a sealing member with a variable diameter structure, which is configured to throttle in stages during reset and ascent.

[0032] The technical effects and advantages of this invention are as follows:

[0033] 1. By setting up a buffer component, this invention can release the blockage of the vent hole when the surge arrester body experiences severe large-amplitude vibration, adjust the buffer rigidity, and allow the first piston to continue moving downward for buffering, thereby improving the buffering effect. When the first piston moves to the bottom of the first chamber, it gradually blocks the connecting hole, which plays a throttling role and gradually reduces the oil output in the connecting hole, thereby further slowing down the descent speed of the first piston. This multi-stage buffering avoids the impact caused by buffer failure under large-amplitude vibration, thereby further improving the buffering effect and extending the service life of the surge arrester.

[0034] 2. By adjusting the configuration of the components, this invention enables the conductive parts to be electrically connected to the backup grounding wire when the surge arrester body is subjected to a continuous high-voltage current, thereby reducing the grounding resistance and simultaneously discharging energy to the ground in conjunction with the grounding wire. This increases the energy dissipation speed, reduces the risk of heat accumulation in the internal components of the surge arrester and the breakdown of the insulation material, and thus further extends the service life of the surge arrester. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0036] Figure 2 This is a schematic diagram of the structure of the buffer component and the adjustment component of the present invention.

[0037] Figure 3 This is a schematic diagram of the internal structure of the buffer component of the present invention.

[0038] Figure 4 For the present invention Figure 3 Enlarged view of the structure of part A.

[0039] Figure 5 For the present invention Figure 3 Enlarged view of the structure of part B.

[0040] Figure 6 This is an exploded view of the support rod portion of the present invention.

[0041] Figure 7 This is a schematic diagram of the mounting block structure of the present invention.

[0042] Figure 8 This is a schematic diagram of the adjustment plate part of the present invention.

[0043] Figure 9 This is a schematic diagram of the support plate structure of the present invention.

[0044] The attached figures are labeled as follows: 1. Surge arrester body; 2. Buffer assembly; 21. Mounting base; 22. First chamber; 23. Second chamber; 24. Vent passage; 25. Throttling passage; 26. First piston component; 27. Support rod; 28. Limiting block; 29. ​​Sealing component; 210. Second piston component; 211. Support component; 212. Connecting hole; 213. Sealing plate; 214. Third chamber; 215. Third piston component; 216. First elastic component; 217. Vent hole; 218. 219. Expansion groove; 220. Adjustment groove; 221. Sealing block; 222. Adjustment plate; 223. First magnetic component; 224. Second magnetic component; 225. Third magnetic component; 226. Vent hole; 37. Adjustment assembly; 38. Conductive plate; 39. Mounting groove; 30. Conductive component; 311. Adjustment cavity; 322. Connecting groove; 33. Fourth piston component; 34. Second elastic component; 35. Support plate; 36. Conductive block; 37. Mounting block; 38. Sliding groove; 39. Conductive sheet. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] During use, surge arresters are subjected to vibrations of varying amplitudes due to different factors. If severe, large-amplitude vibrations occur, the damping structure cannot adjust its buffering rigidity according to the vibration amplitude. When the buffering limit is reached, an impact will still occur, causing damage to the surge arrester.

[0047] Example 1

[0048] refer to Figures 1 to 9 An embodiment of the present invention provides a high-voltage surge arrester with high seismic resistance, which includes a surge arrester body 1 and a buffer assembly 2.

[0049] refer to Figures 2 to 8 The buffer assembly 2 includes a mounting base 21. The mounting base 21 has a first chamber 22 and a second chamber 23 arranged sequentially from the inside to the outside. The top of the first chamber 22 has an air outlet channel 24 communicating with the outside and multiple throttling channels 25. A first piston 26 is slidably connected inside the first chamber 22. A support rod 27 is fixedly connected to the top of the first piston 26. The diameter of the support rod 27 is smaller than the diameter of the air outlet channel 24. The surge arrester body 1 is fixedly connected to the top of the support rod 27. Multiple limiting blocks 28 for sliding and limiting the support rod 27 are fixedly connected to the upper part of the air outlet channel 24. A sealing member 29 sleeved on the outer wall of the support rod 27 is fixedly connected to the top of the first piston 26. The sealing member 29 is a variable diameter structure with the diameter gradually increasing from top to bottom.

[0050] refer to Figure 3 and Figure 4 The second piston 210 is slidably connected inside the second chamber 23. A support 211 is fixedly connected to the bottom of the second piston 210. The lower part of the first chamber 22 has multiple connecting holes 212 that communicate with the second chamber 23. When the second piston 210 is located at the bottom of the second chamber 23, it is higher than the multiple connecting holes 212 under the support of the support 211. The interior of the first chamber 22 and the second chamber 23 is filled with hydraulic oil between the first piston 26 and the second piston 210. Multiple sealing plates 213 are fixedly connected to the bottom of the first piston 26. The number of sealing plates 213 is less than the number of connecting holes 212, and each sealing plate 213 corresponds to a connecting hole 212, which can block the corresponding connecting hole 212 when it moves to the bottom limit position.

[0051] refer to Figure 3 , Figure 4 and Figure 8 The mounting base 21 has a third chamber 214 located above the second chamber 23. A third piston 215 is slidably connected inside the third chamber 214. A first elastic member 216 is connected between the side of the third piston 215 away from the second chamber 23 and the third chamber 214. The first elastic member 216 is used for resetting the third piston 215. Multiple vent holes 217 are provided between the third chamber 214 and the second chamber 23. The mounting base 21 has multiple telescopic grooves 218, the same number and corresponding in position as the vent holes 217, inside. Each telescopic groove 218 passes through the corresponding vent hole 217. The mounting base 21 also has multiple telescopic grooves 218, the same number and corresponding in position as the telescopic grooves 218, inside between the first chamber 22 and the second chamber 23. Each adjustment groove 219 is connected to a corresponding telescopic groove 218. Each telescopic groove 218 has a slidably connected sealing block 220 for sealing the corresponding air passage 217. Each adjustment groove 219 has a slidably connected adjustment plate 221 fixedly connected to the corresponding sealing block 220. The outer periphery of the first piston member 26 is fixedly embedded with the same number and position as the telescopic groove 218. Each adjustment plate 221 is fixedly embedded with a second magnetic member 223 and a third magnetic member 224 on the side near the first chamber 22. The third chamber 214 has multiple vent holes 225 communicating with the outside for gas to circulate inside the third chamber 214 when the third piston member 215 moves.

[0052] When the first piston 26 is located at the top of the first chamber 22, the first magnetic element 222 corresponds to the second magnetic element 223. The first magnetic element 222 can push the adjusting plate 221 and drive the sealing block 220 to seal the air hole 217 by repelling the magnetic poles of the second magnetic element 223 with the same polarity.

[0053] When the second piston 210 compresses the gas inside the second chamber 23 to its limit position, the first piston 26 drives the first magnetic component 222 to move to the lower part of the first chamber 22. The first magnetic component 222 corresponds to the third magnetic component 224. The first magnetic component 222 can drive the adjusting plate 221 and the sealing block 220 to release the blockage of the air passage 217 by attracting the opposite poles of the magnetic poles of the third magnetic component 224.

[0054] In actual use, when the surge arrester body 1 vibrates, the vibration is transmitted to the first piston 26 through the support rod 27, pushing the first piston 26 to move downward in the first chamber 22, and squeezing the hydraulic oil in the first chamber 22 into the second chamber 23 through multiple connecting holes 212. The hydraulic oil squeezed into the second chamber 23 will push the second piston 210 to move upward in the second chamber 23, and compress the gas in the second chamber 23. At this time, the gas in the second chamber 23 can act as a gas spring, which can buffer the vibration of the surge arrester body 1, thereby improving the shock resistance of the surge arrester.

[0055] When the vibration of the surge arrester body 1 disappears, the compressed gas in the second chamber 23 will push the second piston 210 back, squeezing the hydraulic oil in the second chamber 23 back into the first chamber 22. This will push the first piston 26 to move upward in the first chamber 22. As the first piston 26 moves upward in the first chamber 22, it will drive the sealing member 29 to move into the air outlet channel 24. During the movement, the sealing member 29 will gradually block the air outlet channel 24, which will play a throttling role. This will gradually reduce the amount of gas in the air outlet channel 24, thereby gradually slowing down the rising speed of the first piston 26. After the sealing member 29 completely blocks the air outlet channel 24, the gas will be discharged from the throttling channel 25, thus avoiding secondary impact during the rebound process and preventing secondary damage.

[0056] When the surge arrester body 1 experiences severe and large-scale vibration, the support rod 27 can further push the first piston 26 to move downward in the first chamber 22, further squeezing the hydraulic oil in the first chamber 22 into the second chamber 23 through multiple connecting holes 212. This will also push the second piston 210 to further compress the gas in the second chamber 23 and move it upward within the second chamber 23. When the second piston 210 compresses the gas in the second chamber 23 to its limit position, to avoid impact caused by buffer failure, the first piston 26 drives the first magnetic component 2... 22 moves to the lower part of the first chamber 22, so that the first magnetic element 222 and the third magnetic element 224 are in the same position. The first magnetic element 222 can drive the adjusting plate 221 and the sealing block 220 to release the blockage of the air hole 217 by attracting the opposite magnetic poles of the first magnetic element 224. At this time, the gas in the second chamber 23 can enter the third chamber 214 and push the third piston 215 to compress the first elastic element 216 to move upward in the third chamber 214. At this time, the first piston 26 can continue to move downward to buffer, thereby improving the buffering effect.

[0057] When the first piston 26 is about to move to the bottom of the first chamber 22, the first piston 26 can drive multiple sealing plates 213 to gradually seal the corresponding connecting holes 212, which plays a throttling role, so that the oil output in the connecting holes 212 gradually decreases, thereby slowing down the descent of the first piston 26 again, thus performing multi-stage buffering, avoiding the impact caused by buffer failure under large vibration, thereby further improving the buffering effect and extending the service life of the surge arrester.

[0058] When the vibration disappears and the first piston 26 returns to its initial position, the first elastic element 216 pushes back the third piston 215, pushing the gas in the third chamber 214 back into the second chamber 23. When the first piston 26 is at the initial position at the top of the first chamber 22, the first magnetic element 222 and the second magnetic element 223 are in the same position. The first magnetic element 222 can push the adjusting plate 221 and drive the sealing block 220 to seal the air hole 217 by repelling the magnetic poles of the second magnetic element 223, thereby restoring the buffer rigidity.

[0059] In summary, by setting up the buffer component 2, when the surge arrester body 1 experiences severe and large-amplitude vibrations, the blockage of the vent 217 can be released, the buffer rigidity can be adjusted, allowing the first piston 26 to continue moving downwards for buffering, thus improving the buffering effect. When the first piston 26 moves to the bottom of the first chamber 22, it gradually blocks the connecting hole 212, which acts as a throttling mechanism, causing the oil output in the connecting hole 212 to gradually decrease, thereby further slowing down the descent speed of the first piston 26. This multi-stage buffering avoids the impact caused by buffer failure under large-amplitude vibrations, thereby further improving the buffering effect and extending the service life of the surge arrester.

[0060] Example 2

[0061] In actual use, when the surge arrester is continuously subjected to high voltage and cannot fully release the energy, the generated energy will gradually accumulate, which will cause the surge arrester to overheat. In severe cases, it may cause the internal components to burn out or the casing to explode, resulting in the failure of the surge arrester. Therefore, this embodiment improves the device described in the above embodiment.

[0062] refer to Figures 1 to 9 It also includes an adjustment component 3, which includes a conductive plate 31. The bottom of the support rod 27 is provided with an installation groove 32. A conductive component 33 that is electrically connected to the surge arrester body 1 is fixedly connected inside the installation groove 32. The conductive component 33 is electrically connected to the grounding wire. The conductive plate 31 is fixedly connected inside the installation groove 32.

[0063] refer to Figures 3 to 9The support rod 27 has an adjustment cavity 34 inside, and a connecting groove 35 is provided between the adjustment cavity 34 and the mounting groove 32. A fourth piston 36 is slidably connected inside the adjustment cavity 34. A second elastic member 37 is connected between the side of the fourth piston 36 near the mounting groove 32 and the adjustment cavity 34. A support plate 38 is fixedly connected to the side of the fourth piston 36 near the mounting groove 32 and slidably connected in the connecting groove 35. A conductive block 39 is fixedly connected to the top of the support plate 38. The side of the fourth piston 36 away from the second elastic member 37 is filled with a thermal expansion material, such as thermal expansion gas.

[0064] When the conductive block 39 moves into the mounting groove 32, both sides of the conductive block 39 come into contact with the conductive component 33 and the conductive plate 31 respectively, and the conductive component 33 and the conductive plate 31 are connected.

[0065] refer to Figure 2 Figure 3 and Figure 7 The top of the mounting base 21 is fixedly connected to the mounting block 310. The top of the mounting block 310 is provided with a sliding groove 311. A conductive sheet 312 is fixedly embedded inside the sliding groove 311. The conductive sheet 312 is electrically connected to the spare grounding wire. One end of the conductive plate 31 located outside the mounting groove 32 is slidably connected inside the sliding groove 311.

[0066] When the first piston 26 is located at the top of the first chamber 22, the conductive plate 31 is not in contact with the conductive sheet 312. When the first piston 26 drives the support rod 27 to move downward in the first chamber 22, the conductive plate 31 can slide synchronously in the sliding groove 311, and the conductive plate 31 can contact the conductive sheet 312.

[0067] In actual use, when the surge arrester body 1 is subjected to a continuous high voltage current, the internal resistance of the surge arrester body 1 decreases sharply. The surge arrester body 1 will release energy to the ground through the conductive element 33 and the grounding wire. When the surge arrester body 1 cannot completely release the energy, the generated energy will gradually accumulate, causing the surge arrester body 1 to generate high temperature. The high temperature will be transmitted to the regulating cavity 34 through the support rod 27, causing the temperature inside the regulating cavity 34 to rise. This causes the thermal expansion material inside the regulating cavity 34 to expand. After the thermal expansion material expands, it will push the fourth piston 36 to compress the second elastic element 37 and move it, and drive the support plate 38 and the conductive block 39 to extend out of the connecting groove 35. When the support plate 38 drives the conductive block 39 to move into the mounting groove 32, the two sides of the conductive block 39 will contact the conductive element 33 and the conductive plate 31 respectively, so that the conductive element 33 and the conductive plate 31 are connected.

[0068] When the surge arrester body 1 is subjected to high-voltage current, it will vibrate. The vibration will be transmitted to the first piston 26 through the support rod 27, causing the support rod 27 to push the first piston 26 to move downward in the first chamber 22. During the downward movement of the support rod 27, the conductive plate 31 will slide synchronously in the sliding groove 311. The conductive plate 31 can contact and conduct with the conductive sheet 312, so that the conductive component 33 can be electrically connected to the backup grounding wire, reducing the grounding resistance. Together with the grounding wire, it will release energy to the ground, improve the energy release speed, reduce the risk of heat accumulation in the internal components of the surge arrester and the breakdown of the insulation material, thereby further extending the service life of the surge arrester.

[0069] In summary, by adjusting the settings of component 3, when the surge arrester body 1 is subjected to a continuous high-voltage current, the conductive component 33 can be electrically connected to the backup grounding wire, reducing the grounding resistance. In conjunction with the grounding wire, energy is discharged to the ground, increasing the energy discharge rate, reducing the risk of heat accumulation in the internal components of the surge arrester and the breakdown of the insulation material, thereby further extending the service life of the surge arrester.

[0070] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-voltage surge arrester with high seismic resistance, comprising an arrester body, characterized in that, Also includes: A buffer assembly designed to adaptively adjust buffer stiffness based on vibration amplitude; A regulating component for activating the backup grounding channel under continuous high voltage conditions; The buffer component includes: A mounting base with a first chamber and a second chamber; A first piston component is slidably connected to the first chamber and has a support rod fixedly connected to its top. The support rod passes through the top of the mounting base and is connected to the surge arrester body. The second piston component is slidably connected within the second chamber; Multiple connecting holes are provided in the lower part of the first chamber and communicate with the second chamber to allow hydraulic oil to flow between the first chamber and the second chamber; A third chamber is provided above the second chamber. An air vent is provided between the third chamber and the second chamber. A third piston is slidably connected in the third chamber. A first elastic element is connected between the third piston and the third chamber for resetting the third piston. The buffer component also includes: A first magnetic component is embedded on the outer periphery of the first piston component, and the mounting base is provided with a telescopic groove and an adjustment groove. A sealing block that is slidably disposed in the expansion groove is fixedly connected to an adjustment plate that slides in the adjustment groove. The second and third magnetic components are embedded in the adjustment plate; The bottom of the first piston is fixedly connected with multiple sealing plates, which are configured to gradually seal the corresponding connecting holes as the first piston moves down to the bottom.

2. The high seismic resistance high-voltage surge arrester according to claim 1, characterized in that: The adjustment component includes: A conductive component fixed in the mounting groove at the top of the support rod is connected to the surge arrester body and the main grounding wire. A conductive plate fixed within the mounting groove; An adjustment cavity is formed inside the support rod and filled with a thermally expanding material; A fourth piston component is slidably connected within the adjustment cavity, with a second elastic component connected to one side of the adjustment cavity and a support plate fixedly connected thereto.

3. The high seismic resistance high-voltage surge arrester according to claim 2, characterized in that: The support plate is fixedly connected to a conductive block and can extend to the mounting groove. The top of the mounting base is fixedly connected to a mounting block. The mounting base has a sliding groove. A conductive sheet for connecting a spare grounding wire is embedded in the sliding groove. One end of the conductive plate is slidably connected in the sliding groove.

4. The high seismic resistance high-voltage surge arrester according to claim 3, characterized in that: The conductive block is configured to extend into the mounting groove under the push of the thermally expanding material, so that the conductive element is in communication with the conductive plate; The conductive plate is configured to contact the conductive sheet when the support rod moves downward.

5. The high seismic resistance high-voltage surge arrester according to claim 1, characterized in that: When the first piston is at the top, the first magnetic element and the second magnetic element, being of the same polarity, repel each other, pushing the sealing block to block the air passage. When the first piston moves down to the bottom, the first magnetic component and the third magnetic component attract each other due to their opposite polarities, pulling the sealing block to open the vent.

6. The high seismic resistance high-voltage surge arrester according to claim 5, characterized in that: The first chamber has an air outlet channel and a throttling channel at the top, and the support rod is fitted with a variable diameter sealing component on the outside, which is configured to throttle in stages when it is reset and rising.

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