AC lightning arrester

Abstract

The invention discloses an AC lightning arrester, which is applied in the technical field of lightning arresters. The invention is used to install the lightning arrester structure with the top frame by arranging an enclosing frame, a stabilizing frame, a latch, a clamping plate and a pressure spring of an installation component. By arranging a structure switching system, it is convenient to control the structure to switch to another lightning arrester structure when a single lightning arrester structure is damaged. The switching module is used to switch the conductor position. The sensing module is used to sense whether the used lightning arrester structure is working normally. The measuring module can facilitate the measurement of the parameters of the lightning arrester structure. When a single lightning arrester structure is damaged, it can be quickly switched for use. The used installation component can facilitate the structural disassembly and installation of the lightning arrester structure.

Description

Technical Field

[0001] The invention relates to the H01C7 / 12 field, and in particular to an AC lightning arrester. Background Art

[0002] A lightning arrester is an electrical appliance used to protect electrical equipment from high transient overvoltage hazards and to limit the follow-current time and often the follow-current amplitude. Under normal system operating voltage, the lightning arrester is in a high resistance state, with only microampere-level current passing through it. Under the action of overvoltage and high current, it exhibits low resistance, thereby limiting the residual pressure at both ends of the lightning arrester.

[0003] Existing lightning arresters are sometimes installed in dangerous locations during use. If they are damaged during normal operation, they cannot be replaced in a timely and safe manner, which can easily cause damage to electrical equipment. In addition, they are often disassembled and assembled during maintenance and repair.

[0004] Based on the above-mentioned problems, we found that it is difficult for existing lightning arresters to avoid the above problems at the same time. Therefore, we propose an AC lightning arrester that can be switched for use in time when the lightning arrester is damaged and is easy to replace and install after the operation. Summary of the invention

[0005] The purpose of the present invention is to provide an existing AC lightning arrester, which has the advantages that the arrester can be switched for use in time when it is damaged, and the arrester can be easily replaced and installed after the operation.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an AC lightning arrester, comprising a lightning arrester structure and a structure switching system, wherein the top of the lightning arrester structure is bolted with a terminal connector, the bottom of the lightning arrester structure is bolted with a base, the top of the terminal connector is provided with a mounting assembly, the top of the mounting assembly is bolted with a top frame, and the top of the top frame is bolted with a conductor frame;

[0007] The structural switching system includes a central control module, the output end of the central control module is unidirectionally electrically connected to a switching module, the input end of the central control module is unidirectionally electrically connected to a sensing module, the input end of the central control module is unidirectionally electrically connected to a measuring module, and the input end of the central control module is unidirectionally electrically connected to a monitoring module.

[0008] By adopting the above technical solution, by setting the terminal connector and the installation component, the lightning arrester structure can be easily installed on the top frame. By setting the structure switching system, the control structure can be switched to another lightning arrester structure when a single lightning arrester structure is damaged. The switching module is used to switch the conductor position, the sensing module is used to sense whether the lightning arrester structure in use is working normally, and the measurement module can facilitate the measurement of the parameters of the lightning arrester structure.

[0009] The present invention is further configured as follows: the lightning arrester structure includes end caps, a varistor is arranged between the bottom of the top end cap and the top of the bottom end cap, glass fiber strips are clamped on the outer sides of the top and bottom end caps, the glass fiber strips are arranged on the outer sides of the varistor, a reinforcing rope is arranged on the outer sides of the varistor, the reinforcing rope is arranged on the outer sides of the glass fiber strips, and an insulating shell is arranged on the outer sides of the end caps.

[0010] By adopting the above technical solution, the end cap is provided in combination with the glass fiber strip to install the varistor on the inside of the end cap. The provided reinforcing rope can further facilitate fixing the glass fiber strip on the outside of the varistor. The provided insulating shell is used to improve the insulation performance of the arrester structure.

[0011] The present invention is further configured as follows: the installation component includes an enclosing frame, the inner side of the enclosing frame is clamped with the terminal connector, the front side of the enclosing frame is bolted with a stabilizing frame, the inner side of the stabilizing frame is plugged with a latch, the outer side of the latch is bolted with a card, the front side of the card is bolted with a pressure spring, the front side of the pressure spring is bolted with the enclosing frame, and the latch is plugged with the terminal connector.

[0012] By adopting the above technical solution, by setting up an enclosing frame and a stabilizing frame, when the lightning arrester structure needs to be installed on the enclosing frame through the terminal connector, the pin can be pulled forward first, and then the terminal connector can be inserted into the enclosing frame. When it no longer contacts the pin, the spring is pressed back to make the card move backward, driving the pin to be inserted into the terminal connector to complete the fixation.

[0013] The present invention is further configured as follows: a column is bolted to the bottom of the top frame, a bottom plate is bolted to the bottom of the column, and the top of the bottom plate is clamped to the arrester structure.

[0014] By adopting the above technical solution and arranging the columns, it is possible to easily connect the bottom plate and the top frame, and further install the arrester structure.

[0015] The present invention is further configured as follows: a bracket is bolted to the top of the base plate, the inner side of the bracket is clamped to the arrester structure, the top of the bracket is bolted to a storage box, the bottom of the inner wall of the storage box is bolted to an insulation resistance meter, and the insulation resistance meter is a measurement module.

[0016] By adopting the above technical scheme, by setting a card rack to cooperate with the lightning arrester structure, the lightning arrester structure can be easily connected to the top of the base plate. The storage box is used to install and protect the internal structure. The insulation resistance meter is used as a measuring module to measure the usage data of the lightning arrester structure.

[0017] The present invention is further configured as follows: a smoke detector is bolted to the top of the storage box, a shielding ring is bolted to the instrument shielding terminal of the insulation resistance meter, the shielding ring is clamped on the outside of the lightning arrester structure, the grounding terminal of the insulation resistance meter is bolted to the base, and the high-voltage end of the insulation resistance meter is bolted to the terminal connector.

[0018] By adopting the above technical solution, by setting up a smoke detector, it is convenient to monitor the smoke and dust escaping around the lightning arrester structure, and the insulation resistance meter is connected to the lightning arrester structure to facilitate the measurement of data during its use.

[0019] The present invention is further configured as follows: a side frame is bolted to the rear side of the top frame, a monitoring camera is bolted to the bottom of the side frame, and the monitoring camera is a monitoring module.

[0020] By adopting the above technical solution and setting up a side frame, it is convenient to install a monitoring camera as a monitoring module on the top frame. The set monitoring camera is used to monitor the arrester structure, which is convenient for personnel to observe remotely.

[0021] The present invention is further configured as follows: a contact frame is bolted to the bottom of the top frame, the contact frame is in contact with a terminal connector, and a wire is bolted to the outer side of the conductor frame.

[0022] By adopting the above technical solution and providing a contact frame, it is convenient to contact the conductor frame with the terminal connector through the wire and use it as a conductor.

[0023] The present invention is further configured as follows: a contact frame is arranged on the outer side of the contact frame, a surface of the contact frame is in contact with the contact frame, and the outer side of the contact frame is bolted to a wire.

[0024] By adopting the above technical solution, by setting up a contact frame, it is easy to make the wire contact with the contact frame. By moving the position of the contact frame, it is also easy to adjust the wire to contact different terminal connectors to achieve the effect of switching different lightning arrester structures.

[0025] The present invention is further configured as follows: a guide frame is bolted to the bottom of the top frame, a stepper motor is bolted to the left side of the inner side of the guide frame, a transmission screw is bolted to the output end of the stepper motor, a slider is transmission-connected to the outer side of the transmission screw, the outer side of the slider is slidably connected to the guide frame, the bottom of the slider is bolted to the contact frame, and the stepper motor is a switching module.

[0026] By adopting the above technical solution, by setting the guide frame to cooperate with the stepper motor, when the stepper motor is started, it will drive the transmission screw to rotate and drive the slider to slide along the guide frame, so as to achieve the effect of adjusting the position of the contact frame.

[0027] In order to further extend the service life of the arrester, the raw materials for preparing the surface coating of the insulating shell of the AC arrester of the present invention include: silica-modified acrylic resin, antifouling agent, regulator, fluorosilicone, organic functional silane, catalyst, nanofiller, photoinitiator, and solvent.

[0028] The raw materials include, by weight: 30-50 parts of silica-modified acrylic resin, 8-20 parts of antifouling agent, 0.01-0.1 parts of regulator, 40-60 parts of fluorosilicone, 10-30 parts of organic functional silane, 0.3-1 parts of catalyst, 3-8 parts of nanofiller, 1-2 parts of photoinitiator and 20-60 parts of solvent.

[0029] The preparation method of the silicon dioxide modified acrylic resin comprises: ultrasonically dispersing silicon dioxide in an aqueous solution with an ethanol concentration of 20%, adding acrylic resin, and ultrasonically heating and stirring at 70-80° C. to obtain the silicon dioxide modified acrylic resin. The silicon dioxide is ultrafine silicon dioxide with a particle size of 2-3 μm, purchased from Guangzhou Xinxi Metallurgical Chemical Co., Ltd.

[0030] As a preferred technical solution, the antifouling agent is at least one of cuprous oxide, zinc ethylenebisdithiocarbamate, zinc dimethyldithiocarbamate, copper thiocyanate, copper bis(2-thiopyridine-1-oxide), 4,5-dichloro-2-n-octyl-isothiazoline-3-one, and zinc bis(2-thiopyridine-1-oxide);

[0031] Preferably, the antifouling agent is a combination of zinc ethylenebisdithiocarbamate, cuprous oxide, and 4,5-dichloro-2-n-octyl-isothiazoline-3-one;

[0032] More preferably, the mass ratio of zinc ethylenebisdithiocarbamate, cuprous oxide, and 4,5-dichloro-2-octyl-isothiazoline-3-one is (1-1.5):1:(2-3). The introduction of antifouling agent can significantly improve the antifouling performance of the coating, but it can also cause cracking of the coating film.

[0033] As a preferred technical solution, the regulator is a fluorine regulator; the fluorine regulator is at least one of perfluoroalkyl betaine, perfluoropolyoxyalkyl compound, perfluoro alcohol, and perfluoroalkyl acrylate;

[0034] Preferably, the fluorine regulator is a combination of perfluoroalcohol and perfluoropolyoxyalkyl compound;

[0035] More preferably, the mass ratio of the perfluoroalcohol to the perfluoropolyoxyalkyl compound is (2-5): (1-1.5). The model of the perfluoroalcohol is FC-10, and the model of the perfluoropolyoxyalkyl compound is FC-001, both of which are from Wuhan Changjiang Fluorine Technology Co., Ltd.

[0036] In order to avoid the reduction of the antifouling effect of the coating composition due to the precipitation of the antifouling agent, as a preferred technical solution, the mass ratio of the silica-modified acrylic resin, the antifouling agent, and the fluorine regulator is (40-45): (10-15): (0.01-0.05).

[0037] When compounded according to the above ratio, the silica-modified acrylic resin and the antifouling composition in the system can effectively play a synergistic compounding role, improving the long-term antifouling performance of the coating while ensuring the adhesion performance of the coating to the insulating shell, avoiding the weakening of the bonding force between the coating formed after coating and the insulating shell under the erosion of rainwater, especially acid rain and atmosphere.

[0038] As a preferred technical solution, the fluorosilicone is one or a combination of poly (heptadecafluorodecyl) methyl siloxane, heptadecafluorodecyl triethoxysilane, heptadecafluorodecyl methyl diethoxysilane, nonafluorohexyl triethoxysilane, methyl nonafluorohexyl diethoxysilane, dimethyl nonafluorohexyl ethoxysilane, tridecafluorooctyl trimethoxysilane, tridecafluorooctyl triethoxysilane;

[0039] In order to further improve the waterproof and anti-corrosion properties of the coating, preferably, the fluorosilicone is a combination of heptadecafluorodecyltriethoxysilane and methylnonafluorohexyldiethoxysilane; the mass ratio of heptadecafluorodecyltriethoxysilane and methylnonafluorohexyldiethoxysilane is (0.5-2):(1-2).

[0040] The present invention does not impose any particular limitation on the organofunctional silane, and the organofunctional silane may be selected from but not limited to at least one of vinyl silane, amino silane, epoxy silane, and mercapto silane.

[0041] The present invention does not impose any particular limitation on the catalyst, and the catalyst may be selected from but not limited to at least one of p-hydroxybenzoic acid and trifluorosulfonic acid.

[0042] The present invention does not impose any particular limitation on the nanofiller, and the nanofiller may be selected from but not limited to at least one of carbon nanotubes, nano silicon dioxide, nano zinc oxide, nano zirconium oxide, nano titanium oxide, nano calcium carbonate, and silicon powder.

[0043] The present invention does not impose any particular limitation on the solvent, and the solvent may be selected from, but not limited to, ethanol and water.

[0044] The present invention does not impose any particular limitation on the photoinitiator, which may be selected from but not limited to photoinitiator 184 and photoinitiator 1173.

[0045] The preparation method of the insulating shell coating comprises the following steps: (1) mixing fluorosilicone, nanofiller, photoinitiator and solvent in a reaction container according to weight, adding a catalyst to react under stirring, and then adding an organic functional group silane to react to obtain a fluorosilicone resin; (2) mixing the fluorosilicone resin, silica-modified acrylic resin, antifouling agent and regulator, and evenly spraying them on the surface of the insulating shell, and drying to obtain the coating.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] 1. By setting up the surrounding frame, stabilizing frame, latch, card plate and pressure spring of the installation component, the arrester structure is installed on the top frame. By setting up the structure switching system, it is convenient to control the structure to switch to another arrester structure when a single arrester structure is damaged. The switching module is used to switch the conductor position. The sensing module is used to sense whether the arrester structure in use is working normally. The measuring module can measure the parameters of the arrester structure. When a single arrester structure is damaged, it can be quickly switched for use. The installation component used can facilitate the structural disassembly and installation of the arrester structure.

[0048] 2. The siloxane segments in the side chain structure of the silica-modified acrylic resin used in the system of the present invention can form a spatial network layer after interacting with the fluorine regulator, so that the zinc ethylenebisdithiocarbamate, cuprous oxide, and 4,5-dichloro-2-n-octyl-isothiazoline-3-one in the system are effectively combined and fixed in the spatial network layer, blocking the precipitation of the antifouling agent. The antifouling agent is stably present in the film layer formed after the antifouling coating composition is cured, providing a long-term and stable antifouling effect; on the other hand, after the silica-modified acrylic resin is matched and combined with the fluorine regulator, the main chain structure of the silica-modified acrylic resin is not affected, and a cross-linked Si-O-Si bond is formed between the film layer formed by the coating composition and the insulating shell, thereby ensuring the adhesion performance of the coating film to the insulating shell.

[0049] 3. Fluorosilicone resin and silica-modified acrylic resin in the system have high compatibility, and the coating system has high stability, which solves the problem of coating cracking caused by the introduction of antifouling agents, effectively improves the flexibility of the coating, and ensures the comprehensive performance of the coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0051] Figure 2 It is a schematic diagram of the main structure of the lightning arrester of the present invention;

[0052] Figure 3It is a partial structural schematic diagram of the present invention;

[0053] Figure 4 It is a schematic diagram of the internal structure of the storage box of the present invention;

[0054] Figure 5 It is a schematic diagram of the structure of the installation assembly of the present invention;

[0055] Figure 6 It is a schematic diagram of the top frame structure of the present invention;

[0056] Figure 7 It is a schematic diagram of the guide frame structure of the present invention;

[0057] Figure 8 It is a schematic diagram of the contact frame structure of the present invention;

[0058] Fig. 9 It is a schematic diagram of the structural switching system of the present invention.

[0059] Among them: 1. Lightning arrester structure; 101. End cap; 102. Varistor; 103. Glass fiber strip; 104. Strengthening rope; 105. Insulating shell; 2. Structural switching system; 201. Central control module; 202. Switching module; 203. Sensing module; 204. Measuring module; 205. Monitoring module; 3. Terminal connector; 4. Base; 5. Installation assembly; 501. Surrounding frame; 502. Stable frame; 503. Latch; 504. Card plate; 505. Compression spring; 6. Top frame; 7. Conductor frame; 8. Column; 9. Bottom plate; 10. Card frame; 11. Storage box; 12. Insulation resistance meter; 13. Contact frame; 14. Smoke detector; 15. Shielding ring; 16. Side frame; 17. Monitoring camera; 18. Wire; 19. Contact frame; 20. Guide frame; 21. Stepper motor; 22. Drive screw; 23. Slider. Implementation

[0060] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0061] refer to Figure 1-9 An AC lightning arrester includes a lightning arrester structure 1 and a structure switching system 2, wherein a terminal connector 3 is bolted to the top of the lightning arrester structure 1, and a base 4 is bolted to the bottom of the lightning arrester structure 1.

[0062] The structure switching system 2 includes a central control module 201, the output end of the central control module 201 is unidirectionally electrically connected to the switching module 202, the input end of the central control module 201 is unidirectionally electrically connected to the sensing module 203, the input end of the central control module 201 is unidirectionally electrically connected to the measuring module 204, and the input end of the central control module 201 is unidirectionally electrically connected to the monitoring module 205;

[0063] By setting up a structural switching system 2, it is possible to control the structure to switch to another lightning arrester structure 1 when a single lightning arrester structure 1 is damaged. The switching module 202 is used to switch the conductor position, and the sensing module 203 is used to sense whether the lightning arrester structure 1 in use is working normally. The measuring module 204 can facilitate the measurement of the parameters of the lightning arrester structure 1.

[0064] like Figure 2 As shown, the arrester structure 1 includes an end cap 101, a varistor 102 is arranged between the bottom of the top end cap 101 and the top of the bottom end cap 101, and glass fiber strips 103 are clamped on the outer sides of the top and bottom end caps 101. The glass fiber strips 103 are arranged on the outer side of the varistor 102, and a reinforcing rope 104 is arranged on the outer side of the varistor 102. The reinforcing rope 104 is arranged on the outer side of the glass fiber strip 103, and an insulating shell 105 is arranged on the outer side of the end cap 101. The end cap 101 is arranged to cooperate with the glass fiber strip 103 to install the varistor 102 on the inner side of the end cap 101. The reinforcing rope 104 can facilitate further fixing the glass fiber strip 103 on the outer side of the varistor 102, and the insulating shell 105 is arranged to improve the insulation performance of the arrester structure 1.

[0065] like Figure 1 As shown, a side frame 16 is bolted to the rear side of the top frame 6, and a monitoring camera 17 is bolted to the bottom of the side frame 16. The monitoring camera 17 is a monitoring module 205. By setting the side frame 16, the monitoring camera 17 as the monitoring module 205 can be easily installed on the top frame 6. The set monitoring camera 17 is used to monitor the arrester structure 1, which is convenient for personnel to observe remotely.

[0066] like Figure 3 As shown, a contact frame 13 is bolted to the bottom of the top frame 6, and the contact frame 13 contacts the terminal connector 3. A wire 18 is bolted to the outside of the conductor frame 7. By providing the contact frame 13, the conductor frame 7 can be easily contacted with the terminal connector 3 through the wire 18 and used as a conductor.

[0067] like Figure 7As shown, a contact frame 19 is arranged on the outside of the contact frame 13, and the surface of the contact frame 19 is in contact with the contact frame 13. The outside of the contact frame 19 is bolted to the wire 18. By setting the contact frame 19, it is convenient to make the wire 18 contact with the contact frame 13. By moving the position of the contact frame 19, it is also convenient to adjust the wire 18 to contact with different terminal connectors 3 to achieve the effect of switching the use of different lightning arrester structures 1.

[0068] like Figure 7 As shown, a guide frame 20 is bolted to the bottom of the top frame 6, a stepper motor 21 is bolted to the left side of the inner side of the guide frame 20, a transmission screw 22 is bolted to the output end of the stepper motor 21, and a slider 23 is transmission-connected to the outer side of the transmission screw 22, the outer side of the slider 23 is slidingly connected to the guide frame 20, and the bottom of the slider 23 is bolted to the contact frame 19. The stepper motor 21 is a switching module 202. By setting the guide frame 20 to cooperate with the stepper motor 21, when the stepper motor 21 is started, the transmission screw 22 will be driven to rotate, and the slider 23 will be driven to slide along the guide frame 20, so as to adjust the position of the contact frame 19.

[0069] Brief description of the use process: After the top frame 6 and the base 4 are installed in the working position, the lightning arrester is installed. During installation, the pin 503 is first pulled forward, and then the terminal connector 3 is inserted into the surrounding frame 501 until the terminal connector 3 contacts the contact frame 13, and the base 4 at the bottom of the lightning arrester structure 1 is stuck between the card frame 10 and the bottom plate 9, and then no longer contacts the pin 503. At this time, the pressure spring 505 rebounds, causing the card plate 504 to move backward, driving the pin 503 to be inserted into the reserved hole of the terminal connector 3 to complete the fixation.

[0070] The raw materials for preparing the surface coating of the insulating shell 105 include: by weight, 40 parts of silica-modified acrylic resin, 10 parts of antifouling agent, 0.01 parts of regulator, 45 parts of fluorosilicone, 20 parts of organic functional silane, 0.5 parts of catalyst, 5 parts of nanofiller, 1 part of photoinitiator, and 50 parts of solvent.

[0071] The preparation method of the silicon dioxide modified acrylic resin comprises: ultrasonically dispersing silicon dioxide in an aqueous solution with an ethanol concentration of 20%, adding acrylic resin, and ultrasonically heating and stirring at 80° C. to obtain the silicon dioxide modified acrylic resin.

[0072] The antifouling agent is zinc ethylenebisdithiocarbamate, cuprous oxide, and 4,5-dichloro-2-n-octyl-isothiazoline-3-one in a mass ratio of 1:1:2.

[0073] The regulator is a compound of perfluoroalcohol and perfluoropolyoxyalkyl compound in a mass ratio of 3:1.

[0074] The fluorosilicone is a mixture of heptadecafluorodecyltriethoxysilane and methylnonafluorohexyldiethoxysilane in a mass ratio of 1:2.

[0075] The organic functional silane is 3-(methacryloyloxy)propyltrimethoxysilane, CAS: 2530-85-0.

[0076] The catalyst is p-hydroxybenzoic acid.

[0077] The nano filler is carbon nano tube.

[0078] The solvent is water.

[0079] The photoinitiator is photoinitiator 184.

[0080] The preparation method of the insulating shell coating comprises the following steps: (1) mixing fluorosilicone, nanofiller, photoinitiator and solvent in a reaction container according to weight, adding a catalyst to react under stirring, and then adding an organic functional group silane to react to obtain a fluorosilicone resin; (2) mixing the fluorosilicone resin, silica-modified acrylic resin, antifouling agent and regulator, and evenly spraying them on the surface of the insulating shell, and drying to obtain the coating. Example

[0081] refer to Figure 1-6 An AC lightning arrester includes a lightning arrester structure 1 and a structure switching system 2. The top of the lightning arrester structure 1 is bolted with a terminal connector 3, the top of the terminal connector 3 is provided with a mounting assembly 5, the top of the mounting assembly 5 is bolted with a top frame 6, the top of the top frame 6 is bolted with a conductor frame 7, and the surrounding frame 501, the stabilizing frame 502, the pin 503, the card plate 504 and the pressure spring 505 of the mounting assembly 5 are arranged to cooperate to install the lightning arrester structure 1 and the top frame 6.

[0082] like Figure 5 As shown, the installation component 5 includes an enclosing frame 501, the inner side of the enclosing frame 501 is clamped with the terminal connector 3, the front side of the enclosing frame 501 is bolted with a stabilizing frame 502, the inner side of the stabilizing frame 502 is plugged with a pin 503, the outer side of the pin 503 is bolted with a card plate 504, the front side of the card plate 504 is bolted with a pressure spring 505, the front side of the pressure spring 505 is bolted with the enclosing frame 501, and the pin 503 is plugged with the terminal connector 3. By setting the enclosing frame 501 and the stabilizing frame 502 to cooperate, when the lightning arrester structure 1 needs to be installed with the enclosing frame 501 through the terminal connector 3, the pin 503 can be pulled forward first, and then the terminal connector 3 can be inserted into the enclosing frame 501. When it is no longer in contact with the pin 503, the pressure spring 505 rebounds, so that the card plate 504 moves backward, driving the pin 503 to be inserted into the terminal connector 3 to complete the fixation.

[0083] like Figure 6As shown, the bottom of the top frame 6 is bolted with a column 8, the bottom of the column 8 is bolted with a base plate 9, and the top of the base plate 9 is snap-fitted with the arrester structure 1. By setting the column 8, it is convenient to connect the base plate 9 and the top frame 6, and further install the arrester structure 1.

[0084] like Figure 1 and Figure 6 As shown, a card bracket 10 is bolted to the top of the base plate 9, the inner side of the card bracket 10 is clamped to the arrester structure 1, a storage box 11 is bolted to the top of the card bracket 10, an insulation resistance meter 12 is bolted to the bottom of the inner wall of the storage box 11, and the insulation resistance meter 12 is a measuring module 204. By arranging the card bracket 10 to cooperate with the arrester structure 1, the arrester structure 1 can be conveniently clamped to the top of the base plate 9. The storage box 11 is used to install and protect the internal structure, and the insulation resistance meter 12 is used as a measuring module 204 to measure the usage data of the arrester structure 1.

[0085] like Figure 1 As shown, a smoke detector 14 is bolted to the top of the storage box 11, a shielding ring 15 is bolted to the instrument shielding terminal of the insulation resistance meter 12, the shielding ring 15 is clamped on the outside of the lightning arrester structure 1, the grounding terminal of the insulation resistance meter 12 is bolted to the base 4, and the high-voltage end of the insulation resistance meter 12 is bolted to the terminal connector 3. By setting up the smoke detector 14, it is convenient to monitor the smoke and dust emitted around the lightning arrester structure 1, and the insulation resistance meter 12 is connected to the lightning arrester structure 1 to facilitate the measurement of data when it is used.

[0086] Brief description of the usage process: During normal use, the smoke detector 14 as the sensing module 203 is used to sense whether the arrester structure 1 is working properly. During normal operation, dust will escape when a large current passes through the arrester structure 1, which should be detected. The measuring module 204 can easily measure the parameters of the arrester structure 1. When a single arrester structure 1 is damaged, the stepper motor 21 as the switching module 202 is started, driving the transmission screw 22 to rotate, so that the slider 23 drives the contact frame 19 to move, and contacts the contact frame 13 on the undamaged side and acts as a conductor, achieving the effect of switching use. The monitoring camera 17 as the monitoring module 205 is used to remotely observe the status of the device, so as to prompt personnel to perform maintenance in time.

[0087] The raw materials for preparing the surface coating of the insulating shell 105 are the same as those in Example 1, except that, by weight, there are 45 parts of silica-modified acrylic resin, 15 parts of antifouling agent, 0.05 parts of regulator, 50 parts of fluorosilicone, 25 parts of organic functional silane, 1 part of catalyst, 8 parts of nanofiller, 1 part of photoinitiator, and 60 parts of solvent.

[0088] The antifouling agent is zinc ethylenebisdithiocarbamate, cuprous oxide, and 4,5-dichloro-2-n-octyl-isothiazoline-3-one in a mass ratio of 1.5:1:3.

[0089] The regulator is a compound of perfluoroalcohol and perfluoropolyoxyalkyl compound in a mass ratio of 4:1.5.

[0090] The fluorosilicone is a mixture of heptadecafluorodecyltriethoxysilane and methylnonafluorohexyldiethoxysilane in a mass ratio of 1:1.

[0091] This comparative example provides an AC lightning arrester, and the specific implementation is the same as that of Example 1, except that the raw materials for preparing the surface coating of the insulating shell 105 include 20 parts of silica-modified acrylic resin and 1 part of antifouling agent.

[0092] This comparative example provides an AC lightning arrester, and the specific implementation is the same as that of Example 1, except that, in the raw material for preparing the surface coating of the insulating shell 105, the antifouling agent is zinc ethylenebisdithiocarbamate.

[0093] This comparative example provides an AC lightning arrester, and the specific implementation is the same as that of Example 1, except that, in the raw materials for preparing the surface coating of the insulating shell 105, 0 parts of the regulator are contained.

[0094] Antifouling performance: Refer to GB / T6822-2007 "Ship bottom antifouling and antirust paint system" to test the dynamic antifouling performance of the coating.

[0095] Corrosion resistance test: Refer to GB / T 1771 to test the salt spray resistance of the coating. The test conditions are medium salt spray (5%) requirements and are carried out for 480 hours.

[0096] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An AC lightning arrester, comprising a lightning arrester structure (1) and a structure switching system (2), characterized in that: The top of the arrester structure (1) is bolted with a terminal connector (3), the bottom of the arrester structure (1) is bolted with a base (4), the top of the terminal connector (3) is provided with a mounting assembly (5), the top of the mounting assembly (5) is bolted with a top frame (6), and the top of the top frame (6) is bolted with a conductor frame (7); the mounting assembly (5) comprises an enclosing frame (501), the inner side of the enclosing frame (501) is clamped with the terminal connector (3), and the inner side of the enclosing frame (501) is clamped with the terminal connector (3). A stabilizing frame (502) is bolted to the front side, a latch (503) is plugged into the inner side of the stabilizing frame (502), a clamping plate (504) is bolted to the outer side of the latch (503), a pressure spring (505) is bolted to the front side of the clamping plate (504), the front side of the pressure spring (505) is bolted to the surrounding frame (501), and the latch (503) is plugged into the terminal connector (3); a column (8) is bolted to the bottom of the top frame (6), and a bottom plate ( 9), the top of the bottom plate (9) is snap-connected to the arrester structure (1); a bracket (10) is bolted to the top of the bottom plate (9), the inner side of the bracket (10) is snap-connected to the arrester structure (1), the top of the bracket (10) is bolted to a storage box (11), the bottom of the inner wall of the storage box (11) is bolted to an insulation resistance meter (12), the insulation resistance meter (12) is a measurement module (204); the rear side of the top frame (6) is bolted to a side frame (16), the side frame (16) A monitoring camera (17) is bolted to the bottom, and the monitoring camera (17) is a monitoring module (205); a contact frame (13) is bolted to the bottom of the top frame (6), the contact frame (13) is in contact with the terminal connector (3), and a wire (18) is bolted to the outside of the conductor frame (7); a contact frame (19) is provided on the outside of the contact frame (13), the surface of the contact frame (19) is in contact with the contact frame (13), and the outside of the contact frame (19) is bolted to the wire (18); The structural switching system (2) comprises a central control module (201), the output end of the central control module (201) is unidirectionally electrically connected to a switching module (202), the input end of the central control module (201) is unidirectionally electrically connected to a sensing module (203), the input end of the central control module (201) is unidirectionally electrically connected to a measuring module (204), and the input end of the central control module (201) is unidirectionally electrically connected to a monitoring module (205); When a single arrester structure (1) is damaged, the structure switching system (2) controls the structure to switch to another arrester structure (1), the switching module (202) is used to switch the conductor position, and the sensing module (203) is used to sense whether the arrester structure (1) in use is working normally.

2. An AC lightning arrester according to claim 1, characterized in that: The arrester structure (1) comprises an end cap (101), a varistor (102) is arranged between the bottom of the top end cap (101) and the top of the bottom end cap (101), glass fiber strips (103) are clamped on the outer sides of the top and bottom end caps (101), the glass fiber strips (103) are arranged on the outer side of the varistor (102), a reinforcing rope (104) is arranged on the outer side of the varistor (102), the reinforcing rope (104) is arranged on the outer side of the glass fiber strip (103), and an insulating shell (105) is arranged on the outer side of the end cap (101).

3. The AC lightning arrester according to claim 1, characterized in that: A smoke detector (14) is bolted to the top of the storage box (11); a shielding ring (15) is bolted to the instrument shielding terminal of the insulation resistance meter (12); the shielding ring (15) is clamped on the outside of the lightning arrester structure (1); the grounding terminal of the insulation resistance meter (12) is bolted to the base (4); and the high-voltage terminal of the insulation resistance meter (12) is bolted to the terminal connector (3).

4. An AC lightning arrester according to claim 2, characterized in that: The raw materials for preparing the surface coating of the insulating shell (105) include: silicon dioxide modified acrylic resin, antifouling agent, regulator, fluorosilicone, organic functional group silane, catalyst, nano filler, photoinitiator, and solvent.

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