Outdoor 10kV high-voltage disconnector

Abstract

The application discloses an outdoor 10kV high-voltage isolating switch and relates to the technical field of isolating switches. A female contact head is connected to the top end of a conductive shutter, a ventilation groove is arranged in the conductive shutter, male contact heads are arranged at the two ends of a contact holder, the male contact heads are embedded in the adjacent female contact heads, two air outlet joints are connected to one side of the conductive shutter, an air outlet pipe is connected between the two air outlet joints, and a cold and hot air pipe is connected to the bottom of the air outlet pipe. In winter and snowy weather, hot air forms a closed loop airflow path along the porcelain bottle hole, the air inlet hole, the movable hole and the communication hole and the ventilation groove, and is finally sprayed to the outer surface of the porcelain bottle from the air jet head, so that the ice is quickly melted, the ice layer is prevented from forming a conductive path to cause surface flashover, the stable operation of the isolating switch is ensured, and in high-temperature summer, low-speed cooling air flow can be transported to take away the heat generated by the operation of the power contact head, the temperature rise of the contact head is reduced, and the weather resistance of the isolating switch is better.

Description

Technical Field

[0001] This invention relates to the field of disconnecting switch technology, specifically to an outdoor 10kV high-voltage disconnecting switch. Background Technology

[0002] A 10kV outdoor disconnect switch is a high-voltage switchgear used in 10kV outdoor power systems to complete circuit isolation or line switching under voltage and no-load conditions. It does not have an arc extinguishing device and cannot directly cut off the load current. It must be used in conjunction with a high-voltage circuit breaker and is a core basic equipment to ensure the safety of outdoor power grid maintenance operations. In the Chinese patent application with application number CN202511914740.0 entitled "An Outdoor High Voltage Disconnecting Switch", the patent solves the micro-motion problem caused by insufficient connection preload by using a tapered spline connection, a spring preload module to apply axial preload, and a preload indicator to indicate the magnitude of the preload, thereby ensuring that the disconnecting switch is properly opened and closed and improving operational safety. In winter, when the disconnecting switch is in icy and snowy weather, the surface of the insulating porcelain insulator and the contact surface of the disconnecting switch are easily covered with ice and snow. The covered ice and snow can easily form ice bridges, which reduces the insulation performance of the disconnecting switch. When the disconnecting switch is in use, the formation of ice layer can easily form a conductive path, causing surface flashover. Moreover, when the disconnecting switch is opened, the covered ice layer can easily cause operational failure due to ice blockage. Summary of the Invention

[0003] This invention provides an outdoor 10kV high-voltage disconnecting switch, which can effectively solve the problems mentioned in the background art, such as the disconnecting switch in winter snowy weather, where the surface of the insulating porcelain insulator and the surface of the contact are easily covered with ice and snow, the covered ice and snow can easily form a conductive path, causing surface flashover, and the covered ice layer can easily cause the disconnecting switch to malfunction due to ice blockage when it is opened.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an outdoor 10kV high-voltage disconnector, comprising an assembly frame, wherein a heat dissipation and de-icing assembly is provided on the top of the assembly frame, and the heat dissipation and de-icing assembly comprises channel steel; The top of the assembly frame is equipped with three channel steels. A fixed insulating bottle is installed at one end of the top of the channel steel, and a movable insulating bottle is installed at the other end of the top of the channel steel. A fixed contact plate is installed on the top of the fixed insulating bottle, and a movable contact plate is installed on the top of the movable insulating bottle. A rotating ear is welded to the top of the fixed contact plate, and a conductive gate is rotatably connected to both sides of the rotating ear. A female contact head is connected to one side of the top of the conductive gate plate. A venting groove is provided inside the conductive gate plate. A contact seat is welded to the top of the moving contact plate. Male contacts are installed at both ends of the contact seat. The male contacts are embedded inside the adjacent female contacts. Two air outlets are connected to one side of the conductive gate, and an air outlet pipe is connected between the two opposite air outlets. A hot and cold air pipe is connected to the bottom of the air outlet pipe.

[0005] According to the above technical solution, the contact seat is provided with an active channel, and a connecting lug is welded in the middle of the active channel. Both sides of the connecting lug are connected to the male contact head through a docking spring. The surface of the male contact head is a smooth curved surface, and the inner wall of the female contact head is a smooth curved surface.

[0006] According to the above technical solution, a vent hole is provided at one end of the vent groove corresponding to the position of the female contact head, and a connecting hole is provided at the top of the male contact head. The vent hole and the connecting hole are aligned, and an air inlet channel is provided inside the contact seat at the bottom of the movable channel.

[0007] According to the above technical solution, the top of the dynamic insulating bottle is provided with a porcelain bottle hole, which is connected to the air inlet channel, and the top of the outer side of the fixed insulating bottle is connected with a vent pipe.

[0008] According to the above technical solution, a fixing head is welded to one side of the conductive gate near the air outlet connector, and a fixing pipe is connected to one side of the air outlet pipe, with the fixing pipe sleeved on the outside of the fixing head. Several jet heads are connected at equal intervals on both sides of the hot and cold air pipe, and an air pipe skirt is connected to the outside of the hot and cold air pipe between two adjacent jet heads.

[0009] According to the above technical solution, both the fixed insulation bottle and the moving insulation bottle are equipped with a rotating stand. A rotating shaft is rotatably installed inside the rotating stand. A pneumatic fan is connected in the middle of the rotating shaft. An eccentric wheel is connected to the top of the pneumatic fan in the middle of the rotating shaft.

[0010] According to the above technical solution, the assembly frame is provided with a modular assembly component, and the modular assembly component includes a gas supply pipe; The assembly frame has gas supply pipes connected to both sides of its bottom, and a tap is connected to the top of each gas supply pipe. The channel steel has a gas supply bottom hole, which is connected to the interior of an adjacent fixed insulation bottle and an adjacent moving insulation bottle. The tap is connected to the adjacent gas supply bottom hole. One end of each of the two gas supply pipes is connected to both ends of a three-way pipe. A gas pump is installed on one side of the top of the assembly frame. The outlet of the gas pump is connected to one end of a heating tank. A heating wire is installed inside the heating tank. The other end of the heating tank is connected to the other end of the three-way pipe. The fixed insulating bottle and the moving insulating bottle are provided with several porcelain bottle skirts at equal intervals on their outer sides. A wind-driven ring is sleeved between two adjacent porcelain bottle skirts. Three wind-facing ears are connected at equal intervals on the outer side of the wind-driven ring. A brush is installed at the bottom of the wind-facing ears. The wind-driven ring is provided with an installation opening. An elastic iron sheet is embedded inside the wind-driven ring.

[0011] According to the above technical solution, a number of female power-connecting plates are connected to one end of both the fixed contact plate and the moving contact plate. A power-connecting frame is connected to one side of the female power-connecting plate, and a number of male power-connecting plates are connected to the inside of the power-connecting frame. A number of heat dissipation holes are opened on the surface of both the female power-connecting plate and the male power-connecting plate. The male power-connecting plate is inserted between two adjacent female power-connecting plates, and the power-connecting frame is connected to the external wire.

[0012] According to the above technical solution, the top of the conductive gate is welded with a splicing ear, and two adjacent connecting bolts are connected by a connecting bolt. A fastening spring is connected between the connecting bolt nut and the adjacent splicing ear. The rotating ear is also connected to the conductive gate by a connecting bolt, and a fastening spring is also connected between the connecting bolt nut and the adjacent conductive gate.

[0013] According to the above technical solution, the gas pump and heating wire input terminal are electrically connected to the external controller output terminal, and the controller input terminal is electrically connected to the external power supply output terminal.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Equipped with a heat dissipation and de-icing component, during winter rain and snow, the air pump and heating wire start simultaneously. After the ambient temperature air is heated by the heating tank, it is quickly sent into the interior of the stationary and moving insulating porcelain insulators through the three-way pipe, air supply pipe and tap. The hot air forms a closed-loop airflow path along the porcelain insulator holes, air inlet, moving holes, connecting holes and ventilation slots, and finally sprays from the jet nozzle to the outer surface of the porcelain insulator, quickly melting the ice and preventing the ice layer from forming a conductive path that could cause surface flashover, thus ensuring the stable operation of the disconnecting switch. At the same time, the hot airflow can be heated simultaneously as it flows through the conductive gate, moving and stationary contacts and contact seats, melting the ice at the contact positions and eliminating the problem of operation failure caused by ice blockage when opening the switch. In the hot summer, it can deliver a low-speed cooling airflow to remove the heat generated by the operation of the contact, reduce the contact temperature rise, and greatly improve the high temperature resistance of the disconnecting switch. When high-speed airflow enters the porcelain insulator, it also drives the pneumatic fan and rotating shaft to rotate the eccentric wheel. Utilizing the periodic excitation force generated by the eccentric center of mass, the insulating porcelain insulator vibrates synchronously through the rotating frame, greatly accelerating the shedding of surface ice and snow and significantly improving de-icing efficiency. During routine operation and maintenance, the system can periodically deliver room temperature airflow. The airflow from the jet head, combined with the slight vibration of the porcelain insulator body, can quickly remove sand and dirt from the surface of the porcelain insulator, preventing dirt from forming a conductive film in a humid environment and causing flashover. This also improves the weather resistance of the disconnecting switch. In addition, a docking spring structure is added between the moving and stationary contacts. During the opening and closing process, the elastic adaptive compensation can always maintain a stable contact pressure and effective contact area between the moving and stationary contacts, avoiding poor contact caused by temperature deformation and mechanical wear, and comprehensively improving the conductivity reliability and multi-condition adaptability of the disconnecting switch.

[0015] 2. Equipped with modular assembly components, a high- and low-temperature resistant plastic wind-driven ring can be flexibly installed between adjacent umbrella skirts of the fixed and moving insulating porcelain insulators. It can be quickly connected and fixed by expanding the opening without modifying the original porcelain insulator structure. Disassembly and maintenance are convenient. In high dust conditions, the airflow from the jet head can drive the wind-driven ring and brush to rotate synchronously, accurately cleaning the dust accumulated on the top surface of the umbrella skirt, avoiding surface flashover caused by dirt accumulation from the root, and greatly improving the long-term operation capability of the disconnecting switch in harsh dust environments. The connection between the disconnector and the external conductor adopts an interlocking structure of the female and male contact plates, which greatly expands the current-carrying contact area and ensures smooth current conduction. At the same time, multiple heat dissipation holes are opened on the plate surface to quickly remove the operating heat of the connection part by means of natural convection, avoiding heat accumulation that would cause the contact resistance to rise, and significantly improving the high temperature resistance of the external connection part. Adjacent conductive gates are locked together by splicing lugs and bolts with fastening springs. The preload force continuously output by the springs counteracts the tendency of the threads to loosen due to long-term vibration and thermal cycles, thus maintaining a reliable and tight conductive connection and ensuring the long-term conductive stability of the disconnecting switch.

[0016] In summary, the heat dissipation and de-icing component relies on the hot airflow path to simultaneously melt ice on the outer surface of the porcelain insulator and heat the contact area in winter, eliminating surface flashover and ice blockage during tripping. In summer, it can reduce the temperature rise of the contacts. Combined with the eccentric wheel vibration, it enables rapid removal of ice and snow and daily dust removal, avoiding flashover due to dirt. The modular assembly component supports quick installation of the fan ring, enabling rotating dust removal on the top surface of the umbrella skirt without modifying the original porcelain insulator, making it suitable for high dust conditions. The two components work together to comprehensively improve the reliability of the disconnector switch under multiple operating conditions. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0018] In the attached diagram: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the heat dissipation and de-icing component of the present invention; Figure 3 This is a schematic diagram of the connection structure of the gas pipeline of the present invention; Figure 4 This is a schematic diagram of the installation structure of the conductive gate of the present invention; Figure 5 This is a schematic diagram of the installation structure of the dynamic insulating bottle of the present invention; Figure 6 This is a schematic diagram of the installation structure of the hot and cold air pipes of the present invention; Figure 7 This invention comes from Figure 6 Enlarged view of region A; Figure 8 This is a schematic diagram of the mounting structure of the contact seat of the present invention; Figure 9 This is a schematic diagram of the mounting structure of the male contact of the present invention; Figure 10 This is a schematic diagram of the installation structure of the pneumatic fan of the present invention; Figure 11 This is a schematic diagram of the structure of the module assembly component of the present invention; Figure 12 This is a schematic diagram of the structure of the wind-driven ring of the present invention; Labels in the diagram: 1. Assembly rack; 2. Heat dissipation and de-icing assembly; 201. Channel steel; 202. Fixed insulating bottle; 203. Moving insulating bottle; 204. Fixed contact plate; 205. Moving contact plate; 206. Rotating ear; 207. Conductive gate; 208. Female contact head; 209. Vent groove; 210. Vent hole; 211. Contact seat; 212. Movable channel; 213. Connecting ear; 214. Butt spring; 215. Male contact head; 216. Connecting hole; 217. Air inlet channel; 218. Porcelain insulator hole; 219. Vent pipe; 220. Air outlet connector; 221. Fixed head; 222. Air outlet pipe; 223. Fixed pipe; 224. Hot and cold air pipes; 225. Jet nozzle; 226. Air pipe skirt; 227. Rotating stand; 228. Rotating shaft; 229. Pneumatic fan; 230. Eccentric wheel; 3. Module assembly components; 301. Gas supply pipe; 302. Tap joint; 303. Gas supply bottom hole; 304. T-joint; 305. Gas pump; 306. Heating tank; 307. Heating wire; 308. Ceramic insulator skirt; 309. Pneumatic ring; 310. Mounting opening; 311. Windproof ear; 312. Brush; 313. Elastic iron sheet; 314. Electrical connection motherboard; 315. Heat dissipation hole; 316. Electrical connection frame; 317. Electrical connection male board; 318. Splicing ear; 319. Connecting bolt; 320. Fastening spring. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0020] Example: Figure 1-12As shown, the present invention provides a technical solution for an outdoor 10kV high-voltage disconnect switch, including an assembly frame 1. A heat dissipation and de-icing assembly 2 is provided on the top of the assembly frame 1. The heat dissipation and de-icing assembly 2 includes a channel steel 201, a fixed insulating bottle 202, a moving insulating bottle 203, a fixed contact plate 204, a moving contact plate 205, a rotating ear 206, a conductive gate plate 207, a female contact head 208, a venting groove 209, a venting hole 210, a contact seat 211, a movable channel 212, a connecting ear 213, a docking spring 214, a male contact head 215, a connecting hole 216, an air inlet channel 217, a porcelain insulator hole 218, a vent pipe 219, an air outlet connector 220, a fixed head 221, an air outlet pipe 222, a fixed pipe 223, a hot and cold air pipe 224, a jet nozzle 225, an air pipe skirt 226, a rotating stand 227, a rotating shaft 228, a pneumatic fan 229, and an eccentric wheel 230. The top of the assembly frame 1 is equipped with three channel steels 201. A fixed insulating bottle 202 is installed at one end of the top of the channel steel 201, and a moving insulating bottle 203 is installed at the other end of the top of the channel steel 201. A fixed contact plate 204 is installed on the top of the fixed insulating bottle 202, and a moving contact plate 205 is installed on the top of the moving insulating bottle 203. A rotating ear 206 is welded to the top of the fixed contact plate 204. The fixed insulating bottle 202 and the moving insulating bottle 203 are insulating porcelain bottles. A conductive gate plate 207 is rotatably connected to both sides of the rotating ear 206. A female contact 208 is connected to one side of the top of the conductive gate 207. A vent groove 209 is provided inside the conductive gate 207. A contact seat 211 is welded to the top of the moving contact plate 205. Male contacts 215 are installed at both ends of the contact seat 211, and the male contacts 215 are embedded inside the adjacent female contacts 208. The conductive gate 207, female contact 208, contact seat 211, and male contacts 215 are all made of copper. A movable channel 212 is provided inside the contact seat 211, and a connecting lug 213 is welded to the middle of the movable channel 212. Both sides of the connecting lug 213 are connected by mating springs 214. Connected to the male contact 215, the male contact 215 has a smooth curved surface, and the inner wall of the female contact 208 has a smooth curved surface. When the disconnecting switch is opened or closed, the female contact 208 can apply a squeezing force to the male contact 215. Under the squeezing force, the male contact 215 can move inside the movable channel 212. When the female contact 208 and the male contact 215 are mated, under the elastic action of the mating spring 214, the male contact 215 can fit tightly with the female contact 208, ensuring an effective contact area between the moving and stationary contacts, and improving the conductivity stability of the disconnecting switch. A vent hole 210 is provided at one end of the vent groove 209 corresponding to the position of the female contact head 208. A connecting hole 216 is provided at the top of the male contact head 215. The vent hole 210 and the connecting hole 216 are aligned. An air inlet channel 217 is provided inside the contact seat 211 at the bottom of the movable channel 212. A porcelain inlet hole 218 is provided at the top of the moving insulation bottle 203. The porcelain inlet hole 218 is connected to the air inlet channel 217. Air entering the moving insulation bottle 203 can flow sequentially through the porcelain inlet hole 218, the air inlet channel 217, the movable channel 212, the connecting hole 216, and the vent hole 210 into the vent groove 209. A vent pipe 219 is connected to the top of the outer side of the fixed insulation bottle 202. Air entering the fixed insulation bottle 202 can be discharged through the vent pipe 219. Two air outlets 220 are connected to one side of the conductive gate 207. An air outlet pipe 222 is connected between the two opposite air outlets 220. A hot and cold air pipe 224 is connected to the bottom of the air outlet pipe 222. Several jet nozzles 225 are connected at equal intervals on both sides of the hot and cold air pipe 224. After air enters the ventilation slot 209, it can flow through the air outlets 220 and the air outlet pipe 222 into the hot and cold air pipe 224 and finally be sprayed out from the jet nozzles 225. An air pipe skirt 226 is connected to the outside of the hot and cold air pipe 224 between two adjacent jet nozzles 225. The air pipe skirt 226 is made of rubber. The air pipe skirt 226 can extend the creepage distance and prevent rainwater from forming a continuous conductive water film on the surface of the hot and cold air pipe 224, thereby improving the insulation performance. A fixing head 221 is welded to one side of the conductive gate 207 near the air outlet connector 220. A fixing tube 223 is connected to one side of the air outlet pipe 222. The fixing tube 223 is sleeved on the outside of the fixing head 221. The fixing tube 223 and the fixing head 221 cooperate to limit the air outlet pipe 222, thereby fixing the hot and cold air pipe 224. The air outlet pipe 222, the fixing tube 223 and the hot and cold air pipe 224 are made of high and low temperature resistant plastic material. Both the fixed insulating bottle 202 and the movable insulating bottle 203 are equipped with a rotating support 227. A rotating shaft 228 is rotatably installed inside the rotating support 227. A pneumatic fan 229 is connected in the middle of the rotating shaft 228. An eccentric wheel 230 is connected to the top of the pneumatic fan 229 in the middle of the rotating shaft 228. When the airflow enters the fixed insulating bottle 202 and the movable insulating bottle 203 at high speed, it will drive the pneumatic fan 229 and the rotating shaft 228 to rotate, which in turn drives the eccentric wheel 230 to rotate. The rotation of the eccentric wheel 230 will cause the rotating shaft 228 to vibrate. Under the vibration transmission of the rotating support 227, the fixed insulating bottle 202 and the movable insulating bottle 203 can be vibrated. When the outside of the fixed insulating bottle 202 and the movable insulating bottle 203 is covered with ice and snow, the ice and snow are more likely to fall off under the action of vibration. The assembly frame 1 is equipped with a modular assembly component 3, which includes an air supply pipe 301, a tap 302, an air supply bottom hole 303, a tee pipe 304, an air supply pump 305, a heating tank 306, a heating wire 307, a ceramic bottle umbrella skirt 308, a wind-driven ring 309, an installation opening 310, a wind-facing ear 311, a brush 312, an elastic iron sheet 313, a power connection motherboard 314, a heat dissipation hole 315, a power connection frame 316, a power connection male board 317, a splicing ear 318, a connecting bolt 319, and a fastening spring 320. The bottom two sides of the assembly frame 1 are connected to gas supply pipes 301, and the top of the gas supply pipes 301 is connected to a tap 302. The channel steel 201 has a gas supply bottom hole 303, which is connected to the interior of the adjacent fixed insulation bottle 202 and the interior of the adjacent moving insulation bottle 203. The tap 302 is connected to the adjacent gas supply bottom hole 303. One end of the two gas supply pipes 301 is connected to both ends of the three-way pipe 304. A gas pump 305 is installed on one side of the top of the assembly frame 1. The gas outlet of the gas pump 305 is connected to one end of the heating tank 306. A heating wire 307 is installed inside the heating tank 306. The other end of the heating tank 306 is connected to the other end of the three-way pipe 304. Several porcelain insulator skirts 308 are evenly spaced on the outer sides of the fixed insulating bottle 202 and the moving insulating bottle 203. A wind-driven ring 309 is fitted between adjacent porcelain insulator skirts 308. Three wind-facing ears 311 are evenly spaced on the outer side of the wind-driven ring 309. A brush 312 is installed at the bottom of each wind-facing ear 311. The wind-driven ring 309 has an installation opening 310. An elastic iron sheet 313 is embedded inside the wind-driven ring 309. The wind-driven ring 309 is made of high and low temperature resistant plastic. The elastic iron sheet 313 has good toughness, which enhances the toughness of the wind-driven ring 309. When installing the wind-driven ring 309, the installation opening is enlarged. The nozzle 310 allows the wind-driven ring 309 to be fitted between two adjacent porcelain insulator skirts 308, facilitating installation and disassembly. When the operating environment of the disconnecting switch is dusty, the wind-driven ring 309 is installed. When the airflow acts on the surface of the wind-facing ear 311, the wind force is converted into the rotational force of the wind-driven ring 309, which in turn drives the brush 312 to rotate. The rotation of the brush 312 can sweep away the dust on the top surface of the porcelain insulator skirt 308, preventing dust from accumulating on the top surface of the porcelain insulator skirt 308. In humid weather, it prevents dust and dirt from forming a conductive film that could cause surface flashover, enabling the disconnecting switch to work for a long time in harsh environments with heavy dust. Both the fixed contact plate 204 and the moving contact plate 205 are connected to a number of female contact plates 314 at one end. A connecting frame 316 is connected to one side of the female contact plate 314. A number of male contact plates 317 are connected to the inside of the connecting frame 316. Multiple heat dissipation holes 315 are opened on the surface of both the female contact plate 314 and the male contact plate 317. The male contact plate 317 is inserted between two adjacent female contact plates 314. The connecting frame 316 is connected to the external wire. The multiple female contact plates 314 and male contact plates 317 are connected in an alternating manner, so that the contact area at the connection between the outdoor disconnect switch and the external wire is larger, so that the current can pass through smoothly. Natural wind can pass through the heat dissipation holes 315 to carry away the heat on the female contact plate 314 and the male contact plate 317, avoiding heat accumulation and increased contact resistance. The top of the conductive gate 207 is welded with a splicing ear 318. Two adjacent connecting bolts 319 are connected by the connecting bolt 319. A fastening spring 320 is connected between the nut of the connecting bolt 319 and the adjacent splicing ear 318. The rotating ear 206 is also connected to the conductive gate 207 by the connecting bolt 319. A fastening spring 320 is also connected between the nut of the connecting bolt 319 and the adjacent conductive gate 207. Two adjacent conductive gates 207 are fixedly connected by the connecting bolt 319. The elasticity of the fastening spring 320 can continuously output the clamping force, greatly increase the friction between the threads, and counteract the tendency of the bolts to loosen due to equipment operation vibration and temperature cold and hot cycles, so that the conductive gate 207 can maintain a tight connection for a long time. The input terminals of the gas pump 305 and heating wire 307 are electrically connected to the output terminal of the external controller. The input terminal of the controller is electrically connected to the output terminal of the external power supply. The controller is connected to the Internet of Things (IoT), which allows for remote control of the corresponding electrical components, facilitating the control of the disconnect switch.

[0021] The working principle and usage process of this invention: The fixed insulating bottle 202 and the moving insulating bottle 203 are insulating porcelain bottles. In winter, during rainy or snowy weather, the air pump 305 and the heating wire 307 are started. The air pumped by the air pump 305 is heated by the heating wire 307 inside the heating tank 306 and then enters the air supply pipe 301 through the three-way pipe 304. It then quickly enters the fixed insulating bottle 202 and the moving insulating bottle 203 through the tap 302 and the bottom air supply hole 303. The hot air entering the fixed insulating bottle 202 is discharged through the vent pipe 219. The hot air entering the moving insulating bottle 203 flows sequentially through the porcelain bottle hole 218, the air inlet channel 217, the moving channel 212, and the connecting hole 218. 16 and vent 210 enter the vent slot 209. The hot air entering the vent slot 209 then flows through the outlet joint 220 and outlet pipe 222 into the hot and cold air pipe 224, and finally is ejected from the jet nozzle 225. The ejected hot air acts on the surface of the porcelain bottle, melting the ice and snow on the surface of the porcelain bottle, preventing the ice layer from forming a conductive path and causing surface flashover. In rainy and snowy weather, it ensures the normal operation of the disconnecting switch. In addition, the hot air can heat the conductive gate 207, female contact 208, contact seat 211 and male contact 215 during the process of flowing through them, which can melt the ice on the surface. When the disconnecting switch is opened, it can prevent ice blockage from causing operational failure. Furthermore, when the hot airflow enters the interior of the fixed insulating bottle 202 and the moving insulating bottle 203 at high speed, it will drive the pneumatic fan 229 and the rotating shaft 228 to rotate, which in turn drives the eccentric wheel 230 to rotate. The rotation of the eccentric wheel 230 will cause the rotating shaft 228 to vibrate. Under the vibration transmission of the rotating frame 227, the fixed insulating bottle 202 and the moving insulating bottle 203 will vibrate. When the outside of the fixed insulating bottle 202 and the moving insulating bottle 203 is covered with ice and snow, the ice and snow can fall off more quickly under the action of vibration, which improves the de-icing efficiency. In daily use, the air pump 305 is started periodically to deliver cold air into the porcelain insulator. When the cold air flows through the insulator, the eccentric wheel 230 rotates, causing the insulator to vibrate. The cold air is then ejected from the jet nozzle 225, which blows across the surface of the insulator. The combined effect of the airflow and the vibration of the insulator removes dust from the surface of the insulator, preventing dust accumulation. In humid weather, this prevents dust from forming a conductive film that could cause surface flashover. In hot weather, the air pump 305 can deliver a low-speed airflow through the contact contacts to cool them down, preventing them from overheating and reducing the impact of high temperatures on power transmission. The disconnect switch has good high-temperature resistance. The connecting ear 213 and the male contact 215 are connected by a docking spring 214. When the disconnecting switch is opened or closed, the female contact 208 can apply a squeezing force to the male contact 215. Under the squeezing force, the male contact 215 can move inside the movable channel 212. When the female contact 208 and the male contact 215 are docked, under the elastic action of the docking spring 214, the male contact 215 can fit tightly with the female contact 208, ensuring an effective contact area between the moving and stationary contacts, and improving the conductivity stability of the disconnecting switch. Several porcelain insulator skirts 308 are evenly spaced on the outer sides of the fixed insulating bottle 202 and the moving insulating bottle 203. A wind-driven ring 309 is fitted between two adjacent porcelain insulator skirts 308. The wind-driven ring 309 is made of high and low temperature resistant plastic, and its internal elastic iron sheet 313 can enhance the toughness of the wind-driven ring 309. When installing the wind-driven ring 309, the enlarged installation opening 310 can fit the wind-driven ring 309 between two adjacent porcelain insulator skirts 308, which is convenient for installation and disassembly and can be flexibly adjusted as needed. When the environment in which the disconnector is used is dusty, the wind-driven ring 309 is installed. The air supplied by the air pump 305 is ejected from the jet head 225. The ejected air acts on the surface of the wind-facing ear 311. The wind force drives the wind-driven ring 309 and the brush 312 to rotate. The rotation of the brush 312 sweeps away the dust on the top surface of the porcelain insulator skirt 308, preventing dust from accumulating on the top surface of the porcelain insulator skirt 308, further improving the dust removal quality, and enabling the disconnector to work for a long time in harsh environments with heavy dust. The connection between the disconnecting switch and the external conductor is provided with a female contact plate 314 and a male contact plate 317. Multiple female contact plates 314 and male contact plates 317 are connected in an alternating manner, which increases the contact area between the outdoor disconnecting switch and the external conductor, allowing the current to pass through smoothly. In addition, multiple heat dissipation holes 315 are opened on the surface of both the female contact plate 314 and the male contact plate 317. Natural wind can pass through the heat dissipation holes 315 to carry away the heat on the female contact plate 314 and the male contact plate 317, avoiding heat accumulation and increased contact resistance, and improving the high temperature resistance of the disconnecting switch. The top of the conductive gate 207 is welded with a splicing lug 318. Two adjacent conductive gates 207 are fixedly connected by connecting bolts 319. The elasticity of the fastening spring 320 can continuously output clamping force, greatly increasing the friction between the threads. This can counteract the tendency of the bolts to loosen due to equipment operation vibration and temperature cycling, so that the conductive gate 207 can maintain a tight connection for a long time. This ensures the stability of conductivity during long-term use of the disconnecting switch, resulting in better operational stability of the disconnecting switch.

[0022] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An outdoor 10kV high-voltage disconnector, comprising an assembly frame (1), characterized in that, The top of the assembly frame (1) is provided with a heat dissipation and de-icing assembly (2), which includes a channel steel (201). The top of the assembly frame (1) is equipped with three channel steels (201). A fixed insulating bottle (202) is installed at one end of the top of the channel steel (201), and a movable insulating bottle (203) is installed at the other end of the top of the channel steel (201). A fixed contact plate (204) is installed on the top of the fixed insulating bottle (202), and a movable contact plate (205) is installed on the top of the movable insulating bottle (203). A rotating ear (206) is welded to the top of the fixed contact plate (204), and a conductive gate plate (207) is rotatably connected to both sides of the rotating ear (206). A female contact (208) is connected to one side of the top of the conductive gate (207). A venting groove (209) is provided inside the conductive gate (207). A contact seat (211) is welded to the top of the moving contact plate (205). Male contacts (215) are installed at both ends of the contact seat (211). The male contacts (215) are embedded inside the adjacent female contacts (208). The conductive gate (207) has two air outlets (220) connected to one side, and an air outlet pipe (222) is connected between the two opposite air outlets (220). A hot and cold air pipe (224) is connected to the bottom of the air outlet pipe (222).

2. The outdoor 10kV high-voltage disconnector according to claim 1, characterized in that, The contact seat (211) has an internal movable channel (212), and a connecting ear (213) is welded in the middle of the movable channel (212). Both sides of the connecting ear (213) are connected to the male contact head (215) through a docking spring (214). The surface of the male contact head (215) is a smooth curved surface, and the inner wall of the female contact head (208) is a smooth curved surface.

3. An outdoor 10kV high-voltage disconnector according to claim 2, characterized in that, One end of the vent groove (209) is provided with a vent hole (210) at the position corresponding to the female contact head (208), and the top of the male contact head (215) is provided with a connecting hole (216). The vent hole (210) and the connecting hole (216) are aligned. The contact seat (211) is provided with an air inlet channel (217) through the bottom of the movable channel (212).

4. An outdoor 10kV high-voltage disconnector according to claim 3, characterized in that, The top of the dynamic insulating bottle (203) is provided with a porcelain bottle hole (218), which is connected to the air inlet channel (217). The top of the outer side of the fixed insulating bottle (202) is connected with a vent pipe (219).

5. An outdoor 10kV high-voltage disconnector according to claim 1, characterized in that, A fixing head (221) is welded to one side of the conductive gate (207) near the air outlet connector (220), and a fixing pipe (223) is connected to one side of the air outlet pipe (222), with the fixing pipe (223) sleeved on the outside of the fixing head (221). Several jet heads (225) are connected at equal intervals on both sides of the hot and cold air pipe (224), and an air pipe skirt (226) is connected to the outside of the hot and cold air pipe (224) between two adjacent jet heads (225).

6. An outdoor 10kV high-voltage disconnector according to claim 1, characterized in that, Both the fixed insulating bottle (202) and the moving insulating bottle (203) are equipped with a rotating stand (227). A rotating shaft (228) is rotatably installed inside the rotating stand (227). A pneumatic fan (229) is connected in the middle of the rotating shaft (228). An eccentric wheel (230) is connected in the middle of the rotating shaft (228) at the top of the pneumatic fan (229).

7. An outdoor 10kV high-voltage disconnector according to claim 6, characterized in that, The assembly frame (1) is provided with a module assembly component (3), which includes an air supply pipe (301). The assembly frame (1) has gas supply pipes (301) connected to both sides of its bottom. The top of the gas supply pipes (301) is connected to a tap (302). The channel steel (201) has a gas supply bottom hole (303). The gas supply bottom hole (303) is connected to the interior of the adjacent fixed insulation bottle (202). The gas supply bottom hole (303) is connected to the interior of the adjacent moving insulation bottle (203). The tap (302) is connected to the adjacent gas supply bottom hole (303). One end of each of the two gas supply pipes (301) is connected to both ends of a three-way pipe (304). A gas pump (305) is installed on one side of the top of the assembly frame (1). The outlet of the gas pump (305) is connected to one end of a heating tank (306). A heating wire (307) is installed inside the heating tank (306). The other end of the heating tank (306) is connected to the other end of the three-way pipe (304). The fixed insulating bottle (202) and the moving insulating bottle (203) are provided with several porcelain bottle skirts (308) at equal intervals on the outside. A wind-driven ring (309) is sleeved between two adjacent porcelain bottle skirts (308). Three wind-facing ears (311) are connected at equal intervals on the outside of the wind-driven ring (309). A brush (312) is installed at the bottom of the wind-facing ear (311). The wind-driven ring (309) is provided with an installation opening (310). An elastic iron sheet (313) is embedded inside the wind-driven ring (309).

8. An outdoor 10kV high-voltage disconnector according to claim 7, characterized in that, The fixed contact plate (204) and the moving contact plate (205) are each connected to a number of female contact plates (314) at one end. A power connection frame (316) is connected to one side of the female contact plate (314). A number of male contact plates (317) are connected to the inside of the power connection frame (316). A number of heat dissipation holes (315) are opened on the surface of the female contact plate (314) and the male contact plate (317). The male contact plate (317) is inserted between two adjacent female contact plates (314). The power connection frame (316) is connected to the external wire.

9. An outdoor 10kV high-voltage disconnector according to claim 7, characterized in that, The top of the conductive gate (207) is welded with a splicing ear (318). Two adjacent connecting bolts (319) are connected by a connecting bolt (319). A fastening spring (320) is connected between the nut of the connecting bolt (319) and the adjacent splicing ear (318). The rotating ear (206) is also connected to the conductive gate (207) by a connecting bolt (319). A fastening spring (320) is also connected between the nut of the connecting bolt (319) and the adjacent conductive gate (207).

10. An outdoor 10kV high-voltage disconnector according to claim 7, characterized in that, The input terminals of the gas pump (305) and heating wire (307) are electrically connected to the output terminal of the external controller, and the input terminal of the controller is electrically connected to the output terminal of the external power supply.

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