CN108962667B - High-voltage bistable side-driven high-speed vacuum circuit breaker - Google Patents
High-voltage bistable side-driven high-speed vacuum circuit breaker Download PDFInfo
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- CN108962667B CN108962667B CN201810732900.3A CN201810732900A CN108962667B CN 108962667 B CN108962667 B CN 108962667B CN 201810732900 A CN201810732900 A CN 201810732900A CN 108962667 B CN108962667 B CN 108962667B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
- H01H2033/66223—Details relating to the sealing of vacuum switch housings
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The application provides a high-voltage bistable side-driven ultra-high-speed vacuum circuit breaker which is characterized by comprising a solid-sealed pole part and a box body part, wherein the solid-sealed pole part is arranged at the upper end of the box body part, the box body part is provided with a box body, a separating gate beam, a mechanical driving mechanism, an electromagnetic repulsion mechanism and an electromagnetic unhooking mechanism, the separating gate beam is hinged on the side wall of one side of the interior of the box body, the electromagnetic unhooking mechanism is arranged on the side wall of the other side of the interior of the box body, one end of the separating gate beam is hinged with the box body, the other end of the separating gate beam is connected with the electromagnetic unhooking mechanism, the top of the box body is provided with the mechanical driving mechanism, the electromagnetic repulsion mechanism corresponding to the mechanical driving mechanism is arranged below the mechanical driving mechanism, and the mechanical driving mechanism and the electromagnetic repulsion mechanism are both hinged with the separating gate beam. The automatic switching-on mechanism has the advantages of moderate switching-on speed, stability, no bounce, high switching-off speed, no bounce, automatic switching-off mechanism with switching-on failure, small moving part mass, large repulsive force disc output, compact structure, low cost and the like.
Description
Technical Field
The application belongs to the field of high-voltage electrical equipment, and particularly relates to a high-voltage bistable side-driven high-speed vacuum circuit breaker.
Background
With the increasing complexity of the grid structure and load characteristics, many sensitive electrical loads connected to the power system are extremely susceptible to short-term disturbances from the power system, such as voltage drops and voltage spikes, and therefore increasingly stringent requirements are placed on the quality of electrical energy and operational reliability. Therefore, in order to protect sensitive industrial loads and to improve the power quality of the power system, it is required that the protective device high-voltage circuit breaker has very high-speed switching on and off characteristics, i.e., very short switching on and off times.
At present, a spring operating mechanism, an electromagnetic operating mechanism, a permanent magnet operating mechanism or a hydraulic operating mechanism is generally adopted for providing power for switching on or switching off, the switching-on time of the spring operating mechanism, the electromagnetic operating mechanism, the permanent magnet operating mechanism or the hydraulic operating mechanism is generally 40 ms-60 ms, and the switching-off time is generally 20 ms-40 ms. The shortest switching-off time is also more than 20ms, the longer the duration of fault current is, the stronger the impact on a power grid and the damage degree of equipment are, and the damage to electric elements is also great due to the prolonged switching-on time, so that the high-voltage circuit breaker adopting the traditional operating mechanism is difficult to realize the requirements of quick switching-on and switching-off.
The quick breaker applying the electromagnetic repulsion principle in China adopts a disc spring bistable structure, and the switching-on and switching-off needs to overcome huge energy storage of the disc spring, so that high direct current voltage is needed, huge repulsive force is generated, the size is increased, a repulsive force disc is broken, and serious switching-on rebound and contact damage are more easily caused.
Under the conditions, the product performance is poor, the service life is greatly reduced, the industrialization requirement cannot be met, and the theoretical research is mainly performed at present in China.
Disclosure of Invention
The application aims to solve the problems in the prior art and provide the high-voltage bistable side-acting high-speed vacuum circuit breaker which has the advantages of moderate closing speed, stability, no rebound, high opening speed, no bounce, automatic opening mechanism for failure closing, small moving part mass, large repulsive force disc output, compact structure, low cost and the like.
The application is realized by the following technical scheme:
the high-voltage bistable side-acting high-speed vacuum circuit breaker comprises a solid sealing pole part and a box body part, wherein the solid sealing pole part is arranged at the upper end of the box body part, the solid sealing pole part comprises a pole upper flange, an upper porcelain bushing, a vacuum arc-extinguishing chamber, a lower porcelain bushing, an outgoing line lower flange and an insulating pull rod, the upper porcelain bushing is coaxially connected with the lower porcelain bushing, an outgoing line lower flange is arranged between the upper porcelain bushing and the lower porcelain bushing, the upper end of the upper porcelain bushing is provided with a pole upper flange, a vacuum arc-extinguishing chamber is arranged in the upper porcelain bushing, and the insulating pull rod is connected with a moving contact of the vacuum arc-extinguishing chamber and extends into the lower porcelain bushing through the outgoing line lower flange; the box body part is equipped with box body, separating brake crossbeam, mechanical driving mechanism, electromagnetism repulsion mechanism and electromagnetism unhooking mechanism, it has separating brake crossbeam to articulate on the lateral wall of inside one side of box body, is equipped with the electromagnetism unhooking mechanism on the lateral wall of opposite side, separating brake crossbeam's one end is articulated with the box, and the other end is connected with the electromagnetism unhooking mechanism, the top of box is equipped with mechanical driving mechanism, mechanical driving mechanism's below is equipped with rather than corresponding electromagnetism repulsion mechanism, mechanical driving mechanism and electromagnetism repulsion mechanism all articulate with separating brake crossbeam.
The mechanical driving mechanism comprises an upper flange, a support column, a lower flange, a gear seat, a rack seat, a hinge plate, a half-shaft hinge plate, a compression rod and a spring pull rod, wherein the upper flange is arranged at the top of the box body, the top end of the support column is fixed on the bottom surface of the upper flange, the lower flange is arranged at the bottom end of the support column, the gear seat and the rack seat are arranged on the lower flange, a gear is arranged on the gear seat, a rack is arranged on the rack seat, the gear is meshed with the rack, the gear is hinged with one ends of the hinge plate and the half-shaft hinge plate respectively, the other end of the hinge plate is hinged with a pull rod shaft, the other end of the half-shaft hinge plate is hinged with the middle of the compression rod, one end of the compression rod is hinged with the rack seat, the other end of the compression rod is connected with the spring pull rod, and a compression spring is sleeved on the spring pull rod.
The electromagnetic repulsion mechanism comprises a connecting seat, a connecting flange, a repulsion mechanism and a bistable permanent magnet retaining mechanism, wherein the connecting seat is arranged at the bottom of the mechanical driving mechanism, the bistable permanent magnet retaining mechanism is arranged below the connecting seat, the connecting flange is arranged below the mechanical driving mechanism, and the repulsion mechanism is arranged below the connecting flange.
The bistable permanent magnet retaining mechanism comprises a permanent magnet flange, a spacer sleeve, a magnetic shoe, a permanent magnet coil, a movable iron core and a repulsive force rod, wherein the magnetic shoe is arranged in the spacer sleeve, the permanent magnet coil is respectively arranged at the upper end and the lower end of the magnetic shoe, the permanent magnet flange is respectively arranged at the upper end and the lower end of the spacer sleeve, the repulsive force rod capable of moving up and down is further arranged in the spacer sleeve, and the movable iron core is arranged on the repulsive force rod.
The repulsion mechanism comprises a coil seat, a brake separating coil, a repulsion disc and a bottom rod, wherein the brake separating coil is arranged in the coil seat, the repulsion disc is arranged below the brake separating coil and connected with the repulsion rod, and the bottom rod is arranged below the repulsion disc.
And a brake separating buffer is arranged below the bottom rod.
The below of repulsion mechanism is equipped with divide-shut brake monitoring device, divide-shut brake monitoring device includes L type seat, guide holder, sensor base and sensor, L type seat is fixed in the bottom of case body, be equipped with the guide holder on the L type seat, be equipped with the sensor base on the guide holder, be equipped with the sensor on the sensor base.
And the connecting seat is provided with a laser range finder.
One end of the compression rod, which is positioned at the compression spring, is provided with a damping buffer.
The upper end of the lower porcelain sleeve is provided with a nylon locating sleeve.
Compared with the prior art, the application has the beneficial effects that:
1. the high-voltage bistable side-acting high-speed vacuum circuit breaker has the advantages of moderate closing speed, stability, no rebound, high opening speed, no bounce, automatic opening mechanism with failed closing, small moving part mass, large repulsive force disc output, compact structure, low cost and the like;
2. the high-voltage bistable side-acting high-speed vacuum circuit breaker adopts the mechanical driving mechanism and the electromagnetic repulsive force mechanism, so that the circuit breaker has extremely high movement speed: the opening speed is 4.8 m/s-5.0 m/s, and the closing speed is 2.6 m/s-3.0 m/s;
3. the high-voltage bistable side-driven high-speed vacuum circuit breaker adopts the combination of the electromagnetic repulsion mechanism and the bistable permanent magnet holding mechanism, and has compact structure and stable movement;
4. according to the high-voltage bistable side-acting type high-speed vacuum circuit breaker, the hydraulic buffer device is designed, so that collision damage during opening is greatly reduced, the buffer effect is very good, the opening is almost free from bouncing, and the damping buffer device is adopted, so that the opening has no idle stroke and the opening speed is extremely high;
5. the high-voltage bistable side-driven high-speed vacuum circuit breaker adopts the electromagnetic repulsion mechanism, wherein the permanent magnet mechanism is used for switching on, the repulsion mechanism is used for switching off, the switching-on speed is moderate, and the switching-off speed is extremely high;
6. according to the high-voltage bistable side-acting high-speed vacuum circuit breaker, the contact wear stroke is reserved, the service life of a vacuum arc-extinguishing chamber is prolonged, and the contact wear compensation function is effectively utilized.
Drawings
FIG. 1 is a schematic view of the overall structure of the present application;
FIG. 2 is a schematic view of a portion of an encapsulated pole according to the present application;
FIG. 3 is a schematic view of the cross-sectional structure A-A of FIG. 2;
FIG. 4 is a schematic view of the B-B structure of FIG. 2;
FIG. 5 is a schematic view of a portion of the structure of the case of the present application;
FIG. 6 is a schematic view of the structure of section E-E in FIG. 5;
FIG. 7 is a schematic view of the cross-sectional F-F structure of FIG. 6;
FIG. 8 is a schematic view of the structure of section D-D in FIG. 5;
FIG. 9 is a schematic view of the cross-sectional structure C-C of FIG. 5;
FIG. 10 is a schematic view of the mechanical drive mechanism of the present application;
FIG. 11 is a schematic cross-sectional view of a mechanical drive mechanism of the present application;
FIG. 12 is a schematic structural view of an electromagnetic repulsion mechanism of the present application;
wherein 1, an incoming wire conducting clip, 2, glue filling plugging, 3, an upper porcelain bushing, 4, a conducting copper block, 5, a solidified colloid, 6, a baffle, 7, a soft copper bar, 8, a nylon positioning sleeve, 9, an insulating pull rod, 10, a locking nut, 11, a pole upper flange, 12, a vacuum arc extinguishing chamber, 13, an outgoing wire lower flange, 14, a lower porcelain bushing, 15, a box body, 16, a compression spring, 17, a damping buffer, 18, a brake separating protecting cover, 19, an electromagnetic tripping mechanism, 20, a support column, 21, a compression rod, 22, an electromagnetic repulsion mechanism, 23, a guide seat, 24, an L-shaped seat, 25, a brake separating buffer, 26, a sensor, 27, a sensor base, 28, a brake separating beam, 29, a rack, 30, a rack seat, 31, a half-axle hinge plate, 32, a hinge plate, 33, a slide way, 34, an upper gear flange, 35, a pull rod shaft, 36, a gear, 37 and a rack seat, 38, copper sheathing, 39, compression bar pin, 40, laser rangefinder, 41, electric putter, 42, tension spring pin, 43, guide bar, 44, spring tie bar, 45, lower flange, 46, tension spring, 47, tension spring adjustment bar, 48, sliding sleeve, 49, pin, 50, fixed pin, 51, hinge plate pin, 1201, fixed contact, 1202, bellows, 1203, moving contact, 1901, return spring 1902, trip coil, 1903, iron core, 1904, trip spindle, 1905, hand-split plate, 1906, base flange, 1907, housing, 1908, positioning block, 2201, connection base, 2202, permanent magnet flange, 2203, spacer sleeve, 2204, magnet shoe, 2205, permanent magnet coil, 2206, repulsion bar, 2207, brake-split coil, 2208, moving iron core, 2209, connection flange, 0, coil holder, 2211, repulsion disc, 2212, bottom bar.
Detailed Description
The application is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1, the high-voltage bistable side-acting high-speed vacuum circuit breaker comprises a solid sealed pole part and a box part, wherein the solid sealed pole part is arranged at the upper end of the box part, as shown in fig. 2-4, the solid sealed pole part comprises a pole upper flange 11, an upper porcelain sleeve 3, a vacuum arc-extinguishing chamber 12, a lower porcelain sleeve 14, an outgoing line lower flange 13 and an insulation pull rod 9, the upper porcelain sleeve 3 is coaxially connected with the lower porcelain sleeve 14, the outgoing line lower flange 13 is arranged between the upper porcelain sleeve 3 and the lower porcelain sleeve 14, the upper end of the upper porcelain sleeve 3 is provided with the pole upper flange 11, the vacuum arc-extinguishing chamber 12 is arranged in the upper porcelain sleeve 3, and the insulation pull rod 9 is connected with a movable contact 1203 of the vacuum arc-extinguishing chamber 12 and extends into the lower porcelain sleeve 14 through the outgoing line lower flange 13; as shown in fig. 5-9, the box body part is provided with a box body 15, a separating gate beam 28, a mechanical driving mechanism, an electromagnetic repulsion mechanism 22 and an electromagnetic unhooking mechanism, the separating gate beam 28 is hinged on the side wall on one side of the interior of the box body 15, the electromagnetic unhooking mechanism is arranged on the side wall on the other side, one end of the separating gate beam 28 is hinged with the box body, the other end of the separating gate beam 28 is connected with the electromagnetic unhooking mechanism, the top of the box body is provided with the mechanical driving mechanism, the electromagnetic repulsion mechanism 22 corresponding to the mechanical driving mechanism is arranged below the mechanical driving mechanism, and both the mechanical driving mechanism and the electromagnetic repulsion mechanism 22 are hinged with the separating gate beam 28.
As shown in fig. 2-4, specifically, the upper porcelain bushing 3 and the lower porcelain bushing 14 of the solid sealed pole part are both in a cylindrical structure, the upper porcelain bushing 3 and the lower porcelain bushing 14 are coaxially arranged, an outgoing line lower flange 13 is arranged between the upper porcelain bushing 3 and the lower porcelain bushing 14, a pole upper flange 11 is arranged at the top of the upper porcelain bushing 3, an incoming line conductive clamp 1 is arranged on the top surface of the pole upper flange 11, the incoming line conductive clamp 1 is fixed on the pole upper flange 11 by adopting a locking nut 10, and a glue filling seal 2 is arranged on the upper sea of the outgoing line upper flange 34; the upper porcelain sleeve 3 is internally provided with a vacuum arc-extinguishing chamber 12, specifically, the upper porcelain sleeve 3 is internally provided with a curing colloid 5, the curing colloid 5 insulates and seals a main circuit electric element, the outer side of the curing colloid 5 is attached to the inner wall of the upper porcelain sleeve 3, the inner side of the curing colloid 5 forms the vacuum arc-extinguishing chamber 12, the curing colloid 5 is formed by mixing epoxy glue and a curing agent, the mixing proportion is the prior art, the mixing proportion is not repeated here, the top of the vacuum arc-extinguishing chamber 12 is provided with a fixed contact 1201 which is arranged downwards, the bottom of the vacuum arc-extinguishing chamber 12 is provided with a moving contact 1203 which is arranged upwards, the moving contact 1203 can move up and down in the vacuum arc-extinguishing chamber 12, the lower end of the moving contact 1203 is sleeved with a corrugated pipe 1202, the fixed contact 1201 is connected with an incoming wire conducting clip 1 through a conducting copper block 4, the bottom of the curing colloid 5 is provided with a baffle 6, and the bottom of the moving contact 1203 sequentially passes through the curing colloid 5 and the baffle 6 and extends into the upper porcelain sleeve 3; when in closing, the movable contact 1203 is contacted with the fixed contact 1201; when the switch is opened, the movable contact 1203 is separated from the fixed contact 1201, and a certain separation distance is kept, so that voltage breakdown is avoided.
The lower porcelain bushing 14 is internally provided with an insulating pull rod 9, the upper end of the insulating pull rod 9 is connected with a moving contact 1203, the lower end of the insulating pull rod 9 is connected with a mechanical driving mechanism of a box body part, a soft copper bar 7 is further arranged at the joint of the moving contact 1203 and the insulating pull rod 9 above a lower outgoing line flange 13, and in order to reduce the probability of damage caused by collision between the moving contact 1203 and a fixed contact 1201 during closing, the two ends of the insulating pull rod 9 are made of titanium alloy fittings with light weight and high strength.
As shown in fig. 5-11, the mechanical driving mechanism comprises an upper flange 34, a support column 20, a lower flange 45, a gear seat 37, a rack seat 30, a hinge plate 32, a half-shaft hinge plate 31, a pressing rod 21 and a spring pull rod 44, wherein the upper flange 34 is arranged at the top of the box body 15, the top end of the support column 20 is fixed on the bottom surface of the upper flange 34, the bottom end of the support column 20 is provided with the lower flange 45, the lower flange 45 is provided with the gear seat 37 and the rack seat 30, the gear seat 37 is provided with a gear 36, the rack seat 30 is provided with a rack 29, the gear 36 is meshed with the rack 29, the gear 36 is hinged with one ends of the hinge plate 32 and the half-shaft hinge plate 31 respectively, specifically, the hinge plate 32 and the half-shaft hinge plate 31 are hinged together through a hinge plate pin 51, the other end of the hinge plate 32 is hinged with the pull rod 35, the other end of the half-shaft hinge plate 31 is hinged with the middle part of the pressing rod 21, one end of the pressing rod 21 is hinged with the rack 30, the other end of the half-shaft hinge plate is connected with the spring pull rod 44, and the compression spring pull rod 16 is sleeved on the half-shaft 16.
Specifically, an upper flange 34 is arranged on the top surface of a box body 15, the upper flange 34 and the box body 15 are fixed by welding, four support columns 20 are arranged, the support columns 20 are vertically arranged, the upper ends of the support columns 20 are fixed on the bottom surface of the upper flange 34, the lower ends of the support columns 20 are provided with lower flanges 45, gear holders 37 and rack holders 30 are respectively arranged on the lower flanges 45, gears 36 are arranged on the gear holders 37, the gears 36 are arranged on the gear holders 37 through fixing pins 50, copper sleeves 38 are arranged between the fixing pins 50 and the gears 36, racks 29 are arranged on the rack holders 30 and can move up and down on the rack holders 30, the lower ends of the racks 29 are connected with an electromagnetic repulsion mechanism 22, the gears 36 are meshed with the racks 29, the gears 36 are respectively hinged with the hinge plates 32 and the hinge plates 31, one ends of the hinge plates 32 are hinged with the gears 36, the other ends of the hinge plates are hinged with a pull rod shaft 35, a slide way 33 is arranged at the bottom of the upper flange 34, a slide way 33 is arranged on the slide way, the pull rod 35 can move up and down along the slide way 33, a concretely, the lower ends of the pull rod shaft 35 are provided with a hinge pin 49 and a hinge shaft 49 which is hinged with the hinge shaft 49, and the other ends of the hinge shaft 49 are hinged with the hinge shaft 48, and the hinge shaft 49 are sleeved with the hinge shaft 48, and the hinge shaft 49 are hinged with the hinge shafts 48, and the hinge shafts 48; the gear seat 37 is provided with a spring pull rod 44, the spring pull rod 44 passes through the gear seat 37 and can move up and down, the spring pull rod 44 is sleeved with a compression spring 16, the compression spring 16 is arranged and is used for providing effective retention force for a moving contact 1203 and a fixed contact 1201 in the vacuum arc-extinguishing chamber 12 during closing, the moving contact 1203 and the fixed contact 1201 are not separated, the upper end of the spring pull rod 44 is provided with a guide rod 43, the lower end of the spring pull rod 44 is hinged with a pressure rod 21, the middle part of the pressure rod 21 is hinged with a half-shaft hinge plate 31, one end of the spring pull rod is hinged with the spring pull rod 44, and the other end of the spring pull rod is hinged on the rack seat 30 through a pressure rod pin 39, so that a lever taking the pressure rod pin 39 as a fixed point is formed.
The compression rod 21 is provided with a damping buffer 17 at one end of the compression spring 16. In order to avoid rebound of the compression bar 21 during the action, a damping buffer 17 is arranged at the free end of the compression bar 21, and is used for avoiding rebound of the compression bar 21 during the action, ensuring that no redundant idle stroke exists during the opening, providing time guarantee for rapid opening, simultaneously, the damping buffer 17 has a short blocking buffer during rapid opening, and the compression bar 21 is slowly pulled to a limiting position by a spring until the opening is finished, namely, the compression bar 21 is positioned at an upper position.
The upper end of the lower porcelain bushing 14 is provided with a nylon positioning bushing 8, which is used for increasing the creepage distance and radial positioning of the insulating pull rod 9.
The mechanical driving mechanism works as follows: in the closing state, the electromagnetic repulsion mechanism 22 does not act, at the moment, the rack 29 does not move downwards, the compression spring 16 is in the maximum compression state, the spring pull rod 44 tightens the compression rod 21, so that the compression rod 21 always has an upward pressure, at the moment, the middle part of the compression rod 21 is in a lower position, and the compression rod 21 sequentially passes through the half-shaft hinge plate 31, the hinge plate 32, the pull rod shaft 35, the insulating pull rod 9 and the movable contact 1203 to jack up the movable contact 1203 upwards, so that the movable contact 1203 is tightly attached to the fixed contact 1201, and the closing state is realized; during opening, the electromagnetic repulsion mechanism 22 moves, at this moment, the rack 29 moves downwards under the drive of the electromagnetic repulsion mechanism 22, the rack 29 which moves downwards drives the gear 36 to rotate, after the gear 36 rotates, the pressing rod 21 connected with the half-shaft hinge plate 31 is lifted upwards, at this moment, the middle part of the pressing rod 21 is located at the upper position, meanwhile, the hinge plate 32 hinged with the gear 36 also moves downwards, the moving contact 1203 is pulled downwards sequentially through the hinge plate 32-the pull rod shaft 35-the insulating pull rod 9-the moving contact 1203, the moving contact 1203 is separated from the fixed contact 1201, in an opening state, when the gear 36 drives the hinge plate 32 and the half-shaft hinge plate 31 to move, as the free end of the pressing rod 21 always has an upward pulling force, the opening time is increased until the pressing rod 21 reaches the limit position, therefore, the damping buffer 17 is arranged at the free end of the pressing rod 21, the effect is to avoid rebound when the pressing rod 21 moves, no redundant idle stroke is guaranteed when the opening, time is guaranteed for quick opening, and the damping buffer 17 is blocked when the quick opening is stopped, and the spring is pulled to the limit position of the pressing rod 21 after the opening is completed. The method comprises the steps of carrying out a first treatment on the surface of the During closing, the electromagnetic repulsion mechanism 22 drives the rack 29 to move upwards, the rack 29 which moves upwards drives the gear 36 to rotate, the half-shaft hinge plate 31 and the hinge plate 32 drive the pull rod shaft 35 to move upwards, when the moving contact 1203 and the fixed contact 1201 are in contact in the vacuum arc-extinguishing chamber 12, the moving contact 1203 and the fixed contact 1201 have rebound tendency, at the moment, the moving contact 1203 can reversely apply pressure to press the pressing rod 21 downwards, at the moment, under the action of the compression spring 16, the reverse pressure is greatly buffered, rebound of the moving contact 1203 and the fixed contact 1201 during closing is effectively prevented, and after closing in place, the compression spring 16 provides pressure required during rated operation between the moving contact 1203 and the fixed contact 1201. At this time, the damping buffer 17 will quickly return to the initial position, and prepare for the next brake-off damping.
As shown in fig. 12, the electromagnetic repulsion mechanism 22 includes a connection base 2201, a connection flange 2209, a repulsion mechanism and a bistable permanent magnet holding mechanism, the connection base 2201 is disposed at the bottom of the mechanical driving mechanism, the bistable permanent magnet holding mechanism is disposed below the connection base 2201, the bistable permanent magnet holding mechanism provides power for switching on and provides holding force for switching off and switching on in place, the connection flange 2209 is disposed below the mechanical driving mechanism, the repulsion mechanism is disposed below the connection flange 2209, and provides instantaneous switching-off driving force for the circuit breaker.
The bistable permanent magnet retaining mechanism comprises a permanent magnet flange 2202, a spacer 2203, a magnetic shoe 2204, a permanent magnet coil 2205, a movable iron core 2208 and a repulsive force rod 2206, wherein the magnetic shoe 2204 is arranged in the spacer 2203, the permanent magnet coil 2205 is respectively arranged at the upper end and the lower end of the magnetic shoe 2204, the permanent magnet flange 2202 is respectively arranged at the upper end and the lower end of the spacer 2203, the repulsive force rod 2206 capable of moving up and down is further arranged in the spacer 2203, the movable iron core 2208 is arranged on the repulsive force rod 2206, the repulsive force rod 2206 and the movable iron core 2208 are connected into a whole through interference fit, the upper end of the repulsive force rod 2206 is connected with the rack 29, and the lower end of the repulsive force rod 2206 is connected with the bottom rod 2212. The repulsive force rod 2206 is made of titanium alloy, the repulsive force disc 2211, the spacer 2203 and the bottom rod 2212 are made of high-strength aluminum alloy, the quality of moving parts is reduced to the greatest extent, and the moving speed of the moving parts is improved.
The repulsion mechanism comprises a coil holder 2210, a brake separating coil 2207, a repulsion disc 2211 and a bottom rod 2212, the brake separating coil 2207 is arranged in the coil holder 2210, the repulsion disc 2211 is arranged below the brake separating coil 2207, the repulsion disc 2211 is connected with the repulsion rod 2206, the bottom rod 2212 is arranged below the repulsion disc 2211, the brake separating coil 2207 is wound by adopting a glass fiber covered polyester film copper flat wire, and epoxy resin is poured into the coil holder 2210 for vacuum infusion and solidification after winding is completed, so that the insulation performance and breakdown voltage are greatly improved.
The connection base 2201 is provided with a laser range finder 40, and a certain distance is reserved between the upper plane of the compression bar 21 and the lower plane of the gear seat 37 in the device when the device is switched on, so that the device is not only used for limiting when the device is switched off, but also used for compensating the contact wear of the vacuum arc extinguishing chamber 12. The pressing amount of the pressing rod 21 is reduced along with the burning loss of the contact of the vacuum arc extinguishing chamber 12 until the function is lost, and for real-time monitoring of the burning loss amount, a laser range finder 40 is installed on the installation seat of the electromagnetic repulsion mechanism 22 and irradiates onto the lower plane of the pressing rod 21 through a hole on the lower flange 45, so that real-time ranging is realized.
The brake release buffer 25 is arranged below the bottom rod 2212, so that impact damage generated during brake release is reduced, and meanwhile, bouncing of brake release is greatly reduced.
The below of repulsion mechanism is equipped with divide-shut brake monitoring device, divide-shut brake monitoring device includes L type seat 24, guide holder 23, sensor base 27 and sensor 26, L type seat 24 is fixed in the bottom of case body 15, be equipped with guide holder 23 on the L type seat 24, be equipped with sensor base 27 on the guide holder 23, be equipped with sensor 26 on the sensor base 27, set up whether sensor 26 divides the floodgate and closes a floodgate and monitor in place, guarantee the reliability when dividing floodgate and closing a floodgate.
As shown in fig. 5 and 7, the electromagnetic unhooking mechanism comprises a U-shaped seat, an electric push rod 41 is arranged on the U-shaped seat, the electric push rod 41 is arranged below the opening cross beam 28, a tension spring pin 42 is arranged at the tail end of the opening cross beam 28, a tension spring 46 is arranged on the tension spring pin 42, a tension spring adjusting rod 47 is arranged on the U-shaped seat, one end of the tension spring 46 is connected with the tension spring adjusting rod 47, the other end of the tension spring 46 is connected with the tension spring pin 42, an electromagnetic unhooking mechanism 19 is arranged above the U-shaped seat, the unhooking device comprises a base flange 1906, a shell, a tripping coil 1902, an iron core 1903, a tripping spindle 1904 and a positioning block 1908, one side of the base flange 1906 is fixed on the side wall of the box, the other side of the base flange 1906 is provided with a shell, a tripping coil 1902 is arranged in the shell, a movable iron core 1903 is arranged in the tripping coil 1902, one end of the tripping spindle 1904 extends to the outer side of the base flange 1906, the other end of the tripping spindle 1904 extends to the outer side of the shell, one end of the base flange 1904 extends to the outer side of the shell, one end 1905 of the tripping spindle 1904 is provided with a reset plate 1905, and a reset plate 1908 is sleeved on the outer side of the release handle plate 1908, and is used for avoiding the release of the release handle plate 1905. The tripping device can control the opening time, realize quick action and improve the practicability of the opening device. The tripping device is an electromagnet. The electromagnet is adopted, the structure is simple, the control is convenient, wherein the control circuit of the electromagnet is the prior art and is not described as an innovation point. The telescopic rod of the electric push rod 41 is in a retracted position in a normal state, and after the protective automatic brake release, the electric push rod is used for pushing the brake release beam 28 upwards to the original position.
The technical features not described in the present application may be implemented by the prior art, and are not described herein. The foregoing technical solution is only one embodiment of the present application, and various modifications and variations can be easily made by those skilled in the art based on the application methods and principles disclosed in the present application, not limited to the methods described in the foregoing specific embodiments of the present application, so that the foregoing description is only preferred and not in a limiting sense.
Claims (7)
1. The high-voltage bistable side-acting high-speed vacuum circuit breaker is characterized by comprising a solid sealing pole part and a box body part, wherein the solid sealing pole part is arranged at the upper end of the box body part and comprises a pole upper flange, an upper porcelain sleeve, a vacuum arc-extinguishing chamber, a lower porcelain sleeve, an outgoing lower flange and an insulating pull rod, the upper porcelain sleeve is coaxially connected with the lower porcelain sleeve, an outgoing lower flange is arranged between the upper porcelain sleeve and the lower porcelain sleeve, the upper end of the upper porcelain sleeve is provided with a pole upper flange, the upper porcelain sleeve is internally provided with a vacuum arc-extinguishing chamber, and the insulating pull rod is connected with a moving contact of the vacuum arc-extinguishing chamber and extends into the lower porcelain sleeve through the outgoing lower flange;
the box body part is provided with a box body, a separating brake beam, a mechanical driving mechanism, an electromagnetic repulsion mechanism and an electromagnetic unhooking mechanism, wherein the separating brake beam is hinged to the side wall on one side of the interior of the box body, the electromagnetic unhooking mechanism is arranged on the side wall on the other side of the interior of the box body, one end of the separating brake beam is hinged to the box body, the other end of the separating brake beam is connected with the electromagnetic unhooking mechanism, the top of the box body is provided with the mechanical driving mechanism, the electromagnetic repulsion mechanism corresponding to the mechanical driving mechanism is arranged below the mechanical driving mechanism, and the mechanical driving mechanism and the electromagnetic repulsion mechanism are both hinged to the separating brake beam;
the mechanical driving mechanism comprises an upper flange, a support column, a lower flange, a gear seat, a rack seat, a hinge plate, a half-shaft hinge plate, a compression bar and a spring pull rod, wherein the upper flange is arranged at the top of the box body, the top end of the support column is fixed on the bottom surface of the upper flange, the lower flange is arranged at the bottom end of the support column, the gear seat and the rack seat are arranged on the lower flange, a gear is arranged on the gear seat, a rack is arranged on the rack seat, the gear is meshed with the rack, the gear is hinged with one ends of the hinge plate and the half-shaft hinge plate respectively, the other end of the hinge plate is hinged with a pull rod shaft, the other end of the half-shaft hinge plate is hinged with the middle part of the compression bar, one end of the compression bar is hinged with the rack seat, the other end of the compression bar is connected with the spring pull rod, and a compression spring is sleeved on the spring pull rod;
one end of the compression rod, which is positioned at the compression spring, is provided with a damping buffer;
the upper end of the lower porcelain sleeve is provided with a nylon locating sleeve.
2. The high-voltage bistable side-acting high-speed vacuum circuit breaker according to claim 1, wherein the electromagnetic repulsion mechanism comprises a connecting seat, a connecting flange, a repulsion mechanism and a bistable permanent magnet holding mechanism, the connecting seat is arranged at the bottom of the mechanical driving mechanism, the bistable permanent magnet holding mechanism is arranged below the connecting seat, the connecting flange is arranged below the mechanical driving mechanism, and the repulsion mechanism is arranged below the connecting flange.
3. The high-voltage bistable side-acting high-speed vacuum circuit breaker according to claim 2, wherein the bistable permanent magnet retaining mechanism comprises a permanent magnet flange, a spacer sleeve, a magnetic shoe, a permanent magnet coil, a movable iron core and a repulsive force rod, wherein the magnetic shoe is arranged in the spacer sleeve, the permanent magnet coil is respectively arranged at the upper end and the lower end of the magnetic shoe, the permanent magnet flange is respectively arranged at the upper end and the lower end of the spacer sleeve, the repulsive force rod capable of moving up and down is further arranged in the spacer sleeve, and the movable iron core is arranged on the repulsive force rod.
4. The high-voltage bistable side-acting high-speed vacuum circuit breaker according to claim 2, wherein the repulsive force mechanism comprises a coil seat, a separating brake coil, a repulsive force disc and a bottom rod, the separating brake coil is arranged in the coil seat, the repulsive force disc is arranged below the separating brake coil and is connected with the repulsive force rod, and the bottom rod is arranged below the repulsive force disc.
5. The high voltage bistable side-drive high-speed vacuum circuit breaker of claim 4, wherein said bottom bar has a break buffer under it.
6. The high-voltage bistable side-driven high-speed vacuum circuit breaker of claim 4, wherein the repulsion mechanism is provided with a switch-on/off monitoring device below, the switch-on/off monitoring device comprises an L-shaped seat, a guide seat, a sensor base and a sensor, the L-shaped seat is fixed at the bottom of the box body, the L-shaped seat is provided with the guide seat, the guide seat is provided with the sensor base, and the sensor base is provided with the sensor.
7. The high-voltage bistable side-drive high-speed vacuum circuit breaker according to claim 2, wherein the connecting seat is provided with a laser range finder.
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| CN201810732900.3A CN108962667B (en) | 2018-07-05 | 2018-07-05 | High-voltage bistable side-driven high-speed vacuum circuit breaker |
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| CN201810732900.3A CN108962667B (en) | 2018-07-05 | 2018-07-05 | High-voltage bistable side-driven high-speed vacuum circuit breaker |
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| CN108962667A CN108962667A (en) | 2018-12-07 |
| CN108962667B true CN108962667B (en) | 2023-09-15 |
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| CN110690045B (en) * | 2019-10-09 | 2021-09-03 | 广西电网有限责任公司玉林供电局 | Oil-free self-healing high-voltage parallel capacitor |
| CN118522596A (en) * | 2024-07-23 | 2024-08-20 | 陕西宝光真空电器股份有限公司 | Long-stroke instability-preventing corrugated pipe of vacuum arc-extinguishing chamber and installation method thereof |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01251527A (en) * | 1987-12-11 | 1989-10-06 | Hitachi Ltd | Dc circuit breaker |
| EP1402549A1 (en) * | 2001-07-05 | 2004-03-31 | Schneider Electric Industries SAS | Electrical cutoff and sectioning equipment comprising a vacuum bulb |
| CN2684356Y (en) * | 2003-10-14 | 2005-03-09 | 于云霞 | Push and pull type bistable permanent-magnet operating mechanism |
| CN201178062Y (en) * | 2008-02-05 | 2009-01-07 | 中国电力科学研究院 | AC high-voltage vacuum circuit breaker |
| CN201229899Y (en) * | 2008-07-19 | 2009-04-29 | 常州市明及电气技术开发有限公司 | Modularized spring mechanism cooperating with permanent circuit breaker |
| CN101986407A (en) * | 2010-12-06 | 2011-03-16 | 东南大学 | Quick control mechanism of ultrahigh pressure vacuum circuit breaker and control method thereof |
| CN201975320U (en) * | 2011-04-12 | 2011-09-14 | 浙宝开关(杭州)有限公司 | Permanent-magnet repulsion mechanism |
| CN203966963U (en) * | 2014-08-02 | 2014-11-26 | 浙江沈高所电气有限公司 | A kind of quick acting switching-off structure of vacuum circuit-breaker |
| CN104715964A (en) * | 2015-03-30 | 2015-06-17 | 浙江华仪电器科技有限公司 | Monopole vacuum circuit breaker |
| CN204516677U (en) * | 2015-03-30 | 2015-07-29 | 浙江华仪电器科技有限公司 | A kind of single-pole vacuum circuit breaker |
| CN204696030U (en) * | 2015-05-20 | 2015-10-07 | 保定通力电器设备有限公司 | A kind of Mainspring type outdoor vacuum circuit breaker |
| CN205900428U (en) * | 2016-08-23 | 2017-01-18 | 四川奇通电气成套设备有限公司 | A. C. high voltage vacuum circuit breaker |
| CN206098278U (en) * | 2016-08-31 | 2017-04-12 | 国网内蒙古东部电力有限公司检修分公司 | A double break mouth formula vacuum circuit breaker for 66KV |
| CN206574642U (en) * | 2017-01-13 | 2017-10-20 | 中航宝胜电气股份有限公司 | The pillar high-pressure vacuum breaker of silicon rubber sealed pole |
| CN208507565U (en) * | 2018-07-05 | 2019-02-15 | 山东普益电气有限公司 | A kind of high pressure bistable state side activated speed vacuum circuit breaker |
-
2018
- 2018-07-05 CN CN201810732900.3A patent/CN108962667B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01251527A (en) * | 1987-12-11 | 1989-10-06 | Hitachi Ltd | Dc circuit breaker |
| EP1402549A1 (en) * | 2001-07-05 | 2004-03-31 | Schneider Electric Industries SAS | Electrical cutoff and sectioning equipment comprising a vacuum bulb |
| CN2684356Y (en) * | 2003-10-14 | 2005-03-09 | 于云霞 | Push and pull type bistable permanent-magnet operating mechanism |
| CN201178062Y (en) * | 2008-02-05 | 2009-01-07 | 中国电力科学研究院 | AC high-voltage vacuum circuit breaker |
| CN201229899Y (en) * | 2008-07-19 | 2009-04-29 | 常州市明及电气技术开发有限公司 | Modularized spring mechanism cooperating with permanent circuit breaker |
| CN101986407A (en) * | 2010-12-06 | 2011-03-16 | 东南大学 | Quick control mechanism of ultrahigh pressure vacuum circuit breaker and control method thereof |
| CN201975320U (en) * | 2011-04-12 | 2011-09-14 | 浙宝开关(杭州)有限公司 | Permanent-magnet repulsion mechanism |
| CN203966963U (en) * | 2014-08-02 | 2014-11-26 | 浙江沈高所电气有限公司 | A kind of quick acting switching-off structure of vacuum circuit-breaker |
| CN104715964A (en) * | 2015-03-30 | 2015-06-17 | 浙江华仪电器科技有限公司 | Monopole vacuum circuit breaker |
| CN204516677U (en) * | 2015-03-30 | 2015-07-29 | 浙江华仪电器科技有限公司 | A kind of single-pole vacuum circuit breaker |
| CN204696030U (en) * | 2015-05-20 | 2015-10-07 | 保定通力电器设备有限公司 | A kind of Mainspring type outdoor vacuum circuit breaker |
| CN205900428U (en) * | 2016-08-23 | 2017-01-18 | 四川奇通电气成套设备有限公司 | A. C. high voltage vacuum circuit breaker |
| CN206098278U (en) * | 2016-08-31 | 2017-04-12 | 国网内蒙古东部电力有限公司检修分公司 | A double break mouth formula vacuum circuit breaker for 66KV |
| CN206574642U (en) * | 2017-01-13 | 2017-10-20 | 中航宝胜电气股份有限公司 | The pillar high-pressure vacuum breaker of silicon rubber sealed pole |
| CN208507565U (en) * | 2018-07-05 | 2019-02-15 | 山东普益电气有限公司 | A kind of high pressure bistable state side activated speed vacuum circuit breaker |
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| CN108962667A (en) | 2018-12-07 |
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Effective date of registration: 20220608 Address after: 256600 No. 19, xinlihe Third Road, yangliuxue Town Industrial Park, Bincheng District, Binzhou City, Shandong Province Applicant after: Shandong Yuancheng Electric Co.,Ltd. Address before: 256600 No. 19, xinlihe Third Road, yangliuxue Town Industrial Park, Bincheng District, Binzhou City, Shandong Province Applicant before: SHANDONG POWER ELECTRIC Co.,Ltd. |
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