An intelligent control outdoor high voltage vacuum circuit breaker

Abstract

The present invention discloses an intelligent controlled outdoor high-voltage vacuum circuit breaker, which belongs to the technical field of vacuum circuit breakers, and includes a support base, a closing guide assembly is arranged on the support base, the closing guide assembly includes a circuit breaker body arranged on the support base, and an insulating protective tube is arranged on the circuit breaker body. The present invention quickly opens the circuit through a closing switch, and an electric mechanism is coupled with a power supply. As long as a closing or opening command is issued, the closing and opening operations of the fuse card and the trip plate can be automatically completed. When the connecting rod assembly is displaced, the air in the cylinder is compressed, and a high-speed airflow is formed under the action of the air gathering plate. The arc is subjected to the mechanical, cooling, and deionization effects of the airflow. When the reinforcing deflection plate is deflected, the reset spring is stressed, and the reinforcing deflection plate is reset through the elastic drive of the reset spring itself, thereby realizing the function of adjusting the first pin to contact with different second pins, facilitating the current conversion and transmission, and improving the convenience of the device when in use.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum circuit breakers, and in particular to an intelligently controlled outdoor high-voltage vacuum circuit breaker. Background Art

[0002] A circuit breaker is a switching device that can close, carry and disconnect current under normal circuit conditions and can close, carry and disconnect current under abnormal circuit conditions within a specified time. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. They can automatically cut off the circuit when they are seriously overloaded or have faults such as short circuit and undervoltage. Its function is equivalent to a combination of a fuse switch and an over- and under-temperature relay.

[0003] Among them, the patent with publication number: CN206116278U discloses an outdoor 12KV high-voltage intelligent vacuum circuit breaker, including: an intelligent control box, a box body and a permanent magnetic operating mechanism. A closing pull ring, an opening pull ring, an emergency opening pull ring and an opening and closing indicator are arranged on one side of the box body in sequence. A second cable connector is arranged at the bottom end of the intelligent control box. The second composite bushing is connected to the first composite bushing through a flange. A vacuum arc extinguishing chamber is arranged in the first composite bushing. The conductive clip is connected to the insulating pull rod through a flexible connection. The flexible connection and the insulating pull rod are both arranged in the second composite bushing. A permanent magnetic operating mechanism is fixedly installed at the bottom end of the box body, and the permanent magnetic operating mechanism is connected to the main shaft through a connecting piece.

[0004] When the structure is in use, the circuit breaker is opened by pulling down the opening pull ring, the power is tested on the outgoing line side of the circuit breaker to confirm that there is no electricity, and the closing pull ring is pulled down to close the circuit breaker. The first composite bushing is equipped with a vacuum arc extinguishing chamber, the breaking performance is stable and reliable, there is no danger of burning and explosion, and it is safe and maintenance-free. The outsides of the first composite bushing, the second composite bushing and the current transformer are all coated with silicone rubber insulating material. However, the structure is not easy to open and close quickly when in use, and it is not easy to convert current, which makes the device inconvenient when in use. Summary of the invention

[0005] In order to overcome the above defects of the prior art, the present invention provides an intelligent controlled outdoor high-voltage vacuum circuit breaker, aiming to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: an intelligently controlled outdoor high-voltage vacuum circuit breaker, comprising a supporting base, on which a closing guide assembly is arranged.

[0007] The closing diversion assembly includes a circuit breaker body arranged on a supporting base, an insulating protective cylinder is arranged on the circuit breaker body, a supporting pad is arranged on the top of the insulating protective cylinder, an arc-extinguishing insulating cover is arranged on the top of the supporting pad, the arc-extinguishing insulating cover is arranged on the outside of the bell-shaped cover, a diversion joint is arranged on the top of the arc-extinguishing insulating cover, a reinforced extension plate is arranged on the bottom of the nylon protective cover, the reinforced extension plate is installed on the outside of the supporting pad, and a buffer protective roll is arranged on the bottom surface of the arc-extinguishing insulating cover.

[0008] A reinforcing support is provided in the insulating protective tube, a controller is provided on one side of the reinforcing support, a closing switch is provided on the controller, a cylinder is provided on one side of the controller, a connecting rod assembly is provided on the cylinder, an air gathering plate is provided on the top of the connecting rod assembly, a bell-shaped cover is provided on the top of the air gathering plate, the bottom of the guide joint is connected to the bell-shaped cover, a disconnecting spring is provided on the cylinder, a connecting rod is provided at the bottom of the disconnecting spring, the connecting rod is installed on the outside of the cylinder, a fuse card is provided at the bottom end of the cylinder, a tripping plate is provided on one side of the fuse card, and the tripping plate is installed on the cylinder.

[0009] It can be seen that in the above technical solution, the cylinder drives the connecting rod assembly to move, so that the energy storage closing body pulls the opening spring to be compressed. Under the action of the opening spring, the closing switch is quickly closed, and the manual opening body is rotated in the opposite direction. Under the action of the opening spring, the energy storage closing body quickly opens the closing switch. The electric mechanism is powered by electric operation. As long as the closing or opening command is issued, the closing and opening operations of the fuse card and the trip plate can be automatically completed. At the same time, when the connecting rod assembly is displaced, the air in the cylinder is compressed, and a high-speed airflow is formed under the action of the air gathering plate. The arc is subjected to the comprehensive effects of the airflow, such as mechanical, cooling, and deionization, and is extinguished when the current passes through zero. As the moving contact on the cylinder continues to move, the opening distance continues to expand, and the line is disconnected when the dielectric strength between the electrodes withstands the power frequency recovery voltage, and it has the insulation level of the isolation fracture when it reaches the end position.

[0010] The closing switch is provided with an energy storage closing body, the bottom of the energy storage closing body is provided with a manual opening body, the bottom of the manual opening body is provided with a grounding switch, and the bottom of the grounding switch is provided with a live indicator installed on the closing switch.

[0011] A nylon protective cover is provided on one side of the surface of the support pad, a reinforced L-plate is provided inside the nylon protective cover, one end of the reinforced L-plate is rotatably connected to a reinforced deflection plate, a first pin is provided on the reinforced deflection plate, second pins are provided on both sides of the bottom of the first pin, a nylon seat is provided at the bottom of the second pin, the nylon seat is installed at the bottom of the inner cavity of the nylon protective cover, a first conductive pin is provided at one end of the nylon seat, a reinforcing wire body is provided on the first conductive pin, the top of the reinforcing wire body extends to the first pin, a second conductive pin is provided on one side of the first conductive pin, an electric push rod is provided on the top of the second conductive pin, the electric push rod is installed on the reinforced L-plate, and the second conductive pin is connected to the electric push rod through a wire, and the output end of the electric push rod extends to one side of the reinforced deflection plate.

[0012] It can be seen that in the above technical solution, when different currents need to be diverted and transmitted, the staff will preferentially install the wires on the corresponding second pins respectively, and transmit the current through the second conductive pin and the first conductive pin. The second conductive pin transmits the current to the electric push rod, and the output end of the electric push rod extends to drive the reinforced deflection plate to rotate along the axis point of the connection between the reinforced deflection plate and the reinforced L-plate, thereby causing the first pin to displace. When the first pin is displaced, it will contact the second pin respectively, and then the current on the first conductive pin will be transmitted through the reinforced wire body and the first pin. When the reinforced deflection plate is deflected, the reset spring will be subjected to force, and the elasticity of the reset spring itself will drive the reinforced deflection plate to reset, thereby realizing the function of adjusting the first pin to contact with different second pins, facilitating the current conversion and transmission.

[0013] The present invention has the following advantages:

[0014] 1. The cylinder of the present invention drives the connecting rod assembly to move, so that the energy storage closing body pulls the opening spring to be compressed. Under the action of the opening spring, the closing switch is quickly closed, and the manual opening body is rotated in the opposite direction. Under the action of the opening spring, the energy storage closing body quickly opens the closing switch. By adding power to the electric mechanism, as long as the closing or opening command is issued, the closing and opening operations of the fuse card and the trip plate can be automatically completed.

[0015] 2. In the present invention, when the connecting rod assembly is displaced, the air in the cylinder is compressed, and a high-speed airflow is formed under the action of the air gathering plate. The arc is extinguished when the current passes through zero due to the comprehensive effects of the airflow, such as mechanical, cooling, and deionization. As the moving contact on the cylinder continues to move, the open distance continues to expand, and the line is disconnected when the dielectric strength between the electrodes withstands the power frequency recovery voltage, and has the insulation level of an isolation fracture when it reaches the end position.

[0016] 3. The present invention transmits current through the second conductive pin and the first conductive pin. The second conductive pin transmits current to the electric push rod. The output end of the electric push rod extends to drive the reinforced deflection plate to rotate along the axis point of the connection between the reinforced deflection plate and the reinforced L-plate, thereby causing the first pin to displace. When the first pin is displaced, it will contact the second pin respectively, thereby causing the current on the first conductive pin to be transmitted through the reinforced wire body and the first pin.

[0017] 4. In the present invention, when the reinforcing deflection plate is deflected, the reset spring is stressed, and the elasticity of the reset spring drives the reinforcing deflection plate to reset, thereby achieving the function of adjusting the contact between the first pin and the different second pins, facilitating the conversion and transmission of current.

[0018] To sum up, the overall design is simple and the structure is reasonable. Through the corresponding coordinated use of various structures, the energy storage closing body pulls the opening spring to be compressed. Under the action of the opening spring, the closing switch is quickly closed. The manual opening body is rotated in the opposite direction. Under the action of the opening spring, the energy storage closing body quickly opens the closing switch. The electric mechanism is equipped with a power supply. As long as a closing or opening command is issued, the closing and opening operations of the fuse card and the trip plate can be automatically completed. When the connecting rod assembly is displaced, the air in the cylinder is compressed, and a high-speed airflow is formed under the action of the air gathering plate. The arc is subjected to the comprehensive effects of the mechanical, cooling, and deionization of the airflow. Through the displacement of the first pin, the first pin will contact the second pin respectively when it is displaced, and then the current on the first conductive pin is transmitted through the reinforcing wire body and the first pin. When the reinforcing deflection plate is deflected, the reset spring will be subjected to force, and the reinforcing deflection plate will be reset through the elasticity of the reset spring itself, thereby realizing the function of adjusting the first pin to contact with different second pins, facilitating the current conversion and transmission, and improving the diversity and convenience of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a cross-sectional view of the overall structure of the present invention.

[0022] Figure 3 It is a side view of the closing diversion assembly of the present invention.

[0023] Figure 4 It is a side view of the controller, reinforcing support, closing switch, fuse card and trip plate of the present invention.

[0024] Figure 5 It is a side view of the electric push rod, the reinforced L-plate, the reinforced deflection plate and the nylon seat of the present invention installed in the nylon protective cover.

[0025] Figure 6 It is a schematic diagram of the energy storage closing body, manual opening body, earthing switch and live indicator installed on the closing switch of the present invention.

[0026] In the figure: 1, support base; 101, circuit breaker body; 102, insulation protection tube; 103, support pad; 104, arc extinguishing insulation cover; 105, diversion joint; 106, reinforced extension plate; 107, buffer protection roll;

[0027] 2. Strengthening support; 201. Controller; 202. Closing switch; 203. Cylinder; 204. Connecting rod assembly; 205. Disconnecting spring; 206. Connecting rod; 207. Fuse card; 208. Gas collecting plate; 209. Bell cover; 210. Tripping plate;

[0028] 3. Energy storage closing body; 301. Manual opening body; 302. Earthing switch; 303. Power indicator;

[0029] 4. Nylon protective cover; 401. Reinforced L plate; 402. Reinforced deflection plate; 403. First pin; 404. Second pin; 405. Nylon seat; 406. First conductive pin; 407. Second conductive pin; 408. Electric push rod; 409. Return spring; 410. Reinforced wire body. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0031] As attached Figure 1-6The intelligent control outdoor high-voltage vacuum circuit breaker shown in the figure, through the closing guide assembly set on the supporting base 1, through the corresponding coordinated use of various structures, the energy storage closing body 3 pulls the opening spring 205 to be compressed, under the action of the opening spring 205, the closing switch 202 is quickly closed, and the manual opening body 301 is rotated in the opposite direction. Under the action of the opening spring 205, the closing switch 202 is quickly opened. The electric mechanism is powered, and as long as the closing or opening command is issued, the closing and opening operations of the fuse card 207 and the trip plate 210 can be automatically completed. When the connecting rod assembly 204 is displaced, the air in the cylinder 203 is compressed, and a high The arc is subjected to the mechanical, cooling and deionizing effects of the airflow, and is displaced through the first pin 403. When the first pin 403 is displaced, it will contact the second pin 404 respectively, and then the current on the first conductive pin 406 is transmitted through the reinforcing wire 410 and the first pin 403. When the reinforcing deflection plate 402 is deflected, the reset spring 409 is stressed, and the elasticity of the reset spring 409 drives the reinforcing deflection plate 402 to reset, thereby realizing the function of adjusting the first pin 403 to contact with different second pins 404, facilitating the current conversion and transmission, and improving the diversity and convenience of the device when in use. The specific structural arrangement of the components is as follows.

[0032] The closing diversion assembly includes a circuit breaker body 101 arranged on a supporting base 1, an insulating protective tube 102 is arranged on the circuit breaker body 101, a supporting pad 103 is arranged on the top of the insulating protective tube 102, an arc-extinguishing insulating cover 104 is arranged on the top of the supporting pad 103, the arc-extinguishing insulating cover 104 is arranged on the outside of the bell-shaped cover 209, a diversion joint 105 is arranged on the top of the arc-extinguishing insulating cover 104, a reinforced extension plate 106 is arranged on the bottom of the nylon protective cover 4, the reinforced extension plate 106 is installed on the outside of the supporting pad 103, and a buffer protective roll 107 is arranged on the bottom surface of the arc-extinguishing insulating cover 104.

[0033] A reinforcing support 2 is arranged in the insulating protective tube 102, a controller 201 is arranged on one side of the reinforcing support 2, a closing switch 202 is arranged on the controller 201, a cylinder 203 is arranged on one side of the controller 201, a connecting rod assembly 204 is arranged on the cylinder 203, an air gathering plate 208 is arranged on the top of the connecting rod assembly 204, a bell-shaped cover 209 is arranged on the top of the air gathering plate 208, the bottom of the guide joint 105 is connected to the bell-shaped cover 209, a trip spring 205 is arranged on the cylinder 203, a connecting rod 206 is arranged at the bottom of the trip spring 205, and the connecting rod 206 is installed on the outside of the cylinder 203, a fuse card 207 is arranged at the bottom end of the cylinder 203, a trip plate 210 is arranged on one side of the fuse card 207, and the trip plate 210 is installed on the cylinder 203.

[0034] The closing switch 202 is provided with an energy storage closing body 3, a manual opening body 301 is provided at the bottom of the energy storage closing body 3, a grounding switch 302 is provided at the bottom of the manual opening body 301, and a power indicator 303 installed on the closing switch 202 is provided at the bottom of the grounding switch 302.

[0035] A nylon protective cover 4 is provided on one side of the surface of the support pad 103, a reinforcing L-plate 401 is provided inside the nylon protective cover 4, one end of the reinforcing L-plate 401 is rotatably connected to a reinforcing deflection plate 402, a first pin 403 is provided on the reinforcing deflection plate 402, second pins 404 are provided on both sides of the bottom of the first pin 403, a nylon seat 405 is provided at the bottom of the second pin 404, the nylon seat 405 is installed at the bottom of the inner cavity of the nylon protective cover 4, and a first conductive Pin 406, a reinforcing wire body 410 is arranged on the first conductive pin 406, the top of the reinforcing wire body 410 extends to the first pin 403, a second conductive pin 407 is arranged on one side of the first conductive pin 406, an electric push rod 408 is arranged on the top of the second conductive pin 407, the electric push rod 408 is installed on the reinforcing L plate 401, and the second conductive pin 407 is connected to the electric push rod 408 through a wire, and the output end of the electric push rod 408 extends to one side of the reinforcing deflection plate 402.

[0036] When using the above structure, the staff installs the device at the specified position, and the cylinder 203 drives the connecting rod assembly 204 to move, so that the energy storage closing body 3 pulls the opening spring 205 to be compressed (at this time, the opening spring is also stretched to store energy). Under the action of the opening spring 205, the closing switch 202 is quickly closed, and the manual opening body 301 is rotated in the opposite direction. Under the action of the opening spring 205, the energy storage closing body 3 opens the closing switch 202 quickly, through electric operation (electric mechanism): add power to the electric mechanism, as long as the closing or opening command is issued, the closing and opening operations of the fuse card 207 and the trip plate 210 can be automatically completed.

[0037] At the same time, when the connecting rod assembly 204 is displaced, the air in the cylinder 203 is compressed, and a high-speed airflow is formed under the action of the air gathering plate 208. The arc is extinguished when the current passes through zero due to the comprehensive effects of the airflow, such as mechanical, cooling, and deionization. As the moving contact on the cylinder 203 continues to move, the opening distance continues to expand, and the line is disconnected when the dielectric strength between the electrodes withstands the power frequency recovery voltage, and has the insulation level of an isolation fracture when it reaches the termination position.

[0038] At the same time, when the device is in use and different currents need to be diverted and transmitted, the staff will preferentially install the wires on the corresponding second pins 404, and transmit the current through the second conductive pin 407 and the first conductive pin 406. The second conductive pin 407 transmits the current to the electric push rod 408. The output end of the electric push rod 408 extends to drive the reinforced deflection plate 402 to rotate along the axis point where the reinforced deflection plate 402 is connected to the reinforced L-plate 401, thereby causing the first pin 403 to move. When the first pin 403 moves, it will contact the second pin 404 respectively, thereby causing the current on the first conductive pin 406 to be transmitted through the reinforced wire body 410 and the first pin 403.

[0039] When the reinforcing deflection plate 402 is deflected, the reset spring 409 is stressed, and the reset spring 409 itself elastically drives the reinforcing deflection plate 402 to reset, thereby achieving the function of adjusting the contact between the first pin 403 and the different second pins 404, facilitating the conversion and transmission of current.

[0040] Different from the prior art, the present application discloses an intelligently controlled outdoor high-voltage vacuum circuit breaker. Through the corresponding coordinated use of various structures, the energy storage closing body 3 pulls the opening spring 205 to be compressed. Under the action of the opening spring 205, the closing switch 202 is quickly closed. The manual opening body 301 is rotated in the opposite direction. Under the action of the opening spring 205, the closing switch 202 is quickly opened. The electric mechanism is powered on. As long as a closing or opening command is issued, the closing and opening operations of the fuse card 207 and the trip plate 210 can be automatically completed. When the connecting rod assembly 204 is displaced, the air in the cylinder 203 is compressed. Under the action of the air collecting plate 208, the air in the cylinder 203 is compressed. A high-speed airflow is formed, and the arc is subjected to the mechanical, cooling, and deionization effects of the airflow. The first pin 403 is displaced, and the first pin 403 is respectively in contact with the second pin 404 when displaced, so that the current on the first conductive pin 406 is transmitted through the reinforcing wire 410 and the first pin 403. When the reinforcing deflection plate 402 is deflected, the reset spring 409 is subjected to force, and the elasticity of the reset spring 409 drives the reinforcing deflection plate 402 to reset, thereby realizing the function of adjusting the first pin 403 to contact with different second pins 404, facilitating the conversion and transmission of current, and improving the diversity and convenience of the device when in use.

[0041] The above are only preferred embodiments of the present invention and are 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 in the protection scope of the present invention.

Claims

1. An intelligent controlled outdoor high-voltage vacuum circuit breaker, comprising a supporting base (1), characterized in that: The support base (1) is provided with a closing and diversion assembly; The closing current guide assembly comprises a circuit breaker body (101) arranged on a support base (1), an insulating protective cylinder (102) being arranged on the circuit breaker body (101), and a supporting pad (103) being arranged on the top of the insulating protective cylinder (102); A reinforcing support member (2) is arranged in the insulating protective tube (102), a controller (201) is arranged on one side of the reinforcing support member (2), a closing switch (202) is arranged on the controller (201), a cylinder (203) is arranged on one side of the controller (201), a connecting rod assembly (204) is arranged on the cylinder (203), an air collecting plate (208) is arranged on the top of the connecting rod assembly (204), and a bell-shaped cover (209) is arranged on the top of the air collecting plate (208); A nylon protective cover (4) is provided on one side of the surface of the support pad (103), a reinforcing L-plate (401) is provided inside the nylon protective cover (4), one end of the reinforcing L-plate (401) is rotatably connected to a reinforcing deflection plate (402), a first pin (403) is provided on the reinforcing deflection plate (402), and second pins (404) are provided on both sides of the bottom of the first pin (403); The cylinder (203) is provided with a brake opening spring (205), the bottom of the brake opening spring (205) is provided with a connecting rod (206), and the connecting rod (206) is installed on the outside of the cylinder (203); A nylon seat (405) is provided at the bottom of the second pin (404), and the nylon seat (405) is installed at the bottom of the inner cavity of the nylon protective cover (4). A first conductive pin (406) is provided at one end of the nylon seat (405), and a reinforcing wire body (410) is provided on the first conductive pin (406). The top of the reinforcing wire body (410) extends to the first pin (403), and a second conductive pin (406) is provided on one side. The second conductive pin (407) is provided with an electric push rod (408) at the top, and the tops of the reinforced L-plate (401) and the reinforced deflection plate (402) are both provided with return springs (409). The electric push rod (408) is installed on the reinforced L-plate (401), and the second conductive pin (407) is connected to the electric push rod (408) through a wire, and the output end of the electric push rod (408) extends to one side of the reinforced deflection plate (402).

2. The intelligent controlled outdoor high voltage vacuum circuit breaker according to claim 1, characterized in that: An arc-extinguishing insulating cover (104) is arranged on the top of the supporting pad (103), and the arc-extinguishing insulating cover (104) is arranged on the outside of the bell-shaped cover (209). A flow guide joint (105) is arranged on the top of the arc-extinguishing insulating cover (104), and the bottom of the flow guide joint (105) is connected to the bell-shaped cover (209).

3. The intelligent controlled outdoor high voltage vacuum circuit breaker according to claim 2, characterized in that: The bottom of the nylon protective cover (4) is provided with a reinforcing epitaxial plate (106), and the reinforcing epitaxial plate (106) is installed on the outside of the supporting pad (103). The bottom surface of the arc-extinguishing insulating cover (104) is provided with a buffering protective roll (107).

4. The intelligent controlled outdoor high voltage vacuum circuit breaker according to claim 1, characterized in that: A fuse card (207) is provided at the bottom end of the cylinder (203), a trip plate (210) is provided on one side of the fuse card (207), and the trip plate (210) is installed on the cylinder (203).

5. The intelligent controlled outdoor high voltage vacuum circuit breaker according to claim 1, characterized in that: The closing switch (202) is provided with an energy storage closing body (3), the bottom of the energy storage closing body (3) is provided with a manual opening body (301), the bottom of the manual opening body (301) is provided with a grounding switch (302), and the bottom of the grounding switch (302) is provided with a power indicator (303) installed on the closing switch (202).

Images