CN108962667A - A kind of high pressure bistable state side activated speed vacuum circuit breaker - Google Patents

Abstract

The invention provides a high-voltage bistable side-moving ultra-high-speed vacuum circuit breaker, which is characterized in that it includes a solid-sealed pole part and a box body part, and the solid-sealed pole part is arranged at the upper end of the box body part, so that The box part is provided with a box body, a gate opening beam, a mechanical drive mechanism, an electromagnetic repulsion mechanism and an electromagnetic decoupling mechanism. The side wall on one side of the box body is hinged with a gate opening beam, and the side wall on the other side is hinged. An electromagnetic decoupling mechanism is provided, one end of the opening crossbeam is hinged with the box body, and the other end is connected with the electromagnetic decoupling mechanism, a mechanical drive mechanism is provided on the top of the box body, and a corresponding The electromagnetic repulsion mechanism, the mechanical drive mechanism and the electromagnetic repulsion mechanism are both hinged with the opening beam. It has the advantages of moderate closing speed, stable and no bounce, high opening speed, no rebound, automatic opening mechanism when closing fails, small mass of moving parts, large output of repulsion disc, compact structure, and low cost.

Description

A high-voltage bistable side-acting high-speed vacuum circuit breaker

technical field

The invention belongs to the field of high-voltage electrical equipment, and in particular relates to a high-voltage bistable side-moving high-speed vacuum circuit breaker.

Background technique

With the increasing complexity of the grid structure and load characteristics, many sensitive electrical loads connected to the power system are extremely vulnerable to short-term disturbances from the power system, such as voltage dips and voltage surges, thus affecting power quality and operational reliability. More stringent requirements have been put forward. Therefore, in order to protect sensitive important industrial loads and improve the power quality of the power system, high-voltage circuit breakers, protective devices, are required to have very high-speed closing and opening characteristics, that is, very short closing and opening times.

At present, high-voltage circuit breakers generally use spring operating mechanisms, electromagnetic operating mechanisms, permanent magnetic operating mechanisms or hydraulic operating mechanisms to provide power for closing or opening. Their closing time is generally 40ms to 60ms, and their opening time is generally 20ms ~ 40ms. The shortest opening time is also greater than 20ms, and the longer the fault current lasts, the stronger the impact on the grid and the damage to the equipment will be. The prolonged closing time will also cause great damage to electrical components. It is difficult for the high-voltage circuit breaker of the moving mechanism to realize the requirements of fast closing and opening.

Domestic fast circuit breakers using the principle of electromagnetic repulsion mostly adopt disc spring bistable structure. To open and close, the huge energy storage of disc spring must be overcome first, so a high DC voltage is required to generate huge repulsive force, resulting in volume If it increases, the repulsion disk breaks, which is more likely to cause serious closing rebound and contact damage.

The above situation leads to poor product performance, greatly reduced lifespan, and fails to meet the requirements of industrialization. At present, domestic research is mostly based on theoretical research.

Contents of the invention

The purpose of the present invention is to solve the problems existing in the above-mentioned prior art, and provide a high-voltage bistable side-acting high-speed vacuum circuit breaker, which has the characteristics of moderate closing speed, stability and no rebound, high opening speed, and no Bouncing, automatic opening mechanism on failure of closing, small weight of moving parts, large output of repulsion disc, compact structure and low cost.

The present invention is achieved through the following technical solutions:

A high-voltage bistable side-acting high-speed vacuum circuit breaker, comprising a solid-sealed pole part and a box part, the solid-sealed pole part is arranged at the upper end of the box body, and the solid-sealed pole part includes a pole The upper flange, the upper porcelain bushing, the vacuum interrupter, the lower porcelain bushing, the lower flange of the outgoing line and the insulating pull rod, the upper porcelain bushing and the lower porcelain bushing are coaxially connected, and the upper porcelain bushing and the lower porcelain bushing are arranged There is a lower flange for the outgoing line, the upper end of the upper ceramic sleeve is provided with a pole upper flange, and a vacuum interrupter is provided inside the upper ceramic sleeve, and the insulating rod is connected with the moving contact of the vacuum interrupter. The lower flange of the outgoing line extends into the lower porcelain sleeve; the box body part is provided with a box body, a gate opening beam, a mechanical drive mechanism, an electromagnetic repulsion mechanism and an electromagnetic decoupling mechanism, and the side wall on the inner side of the box body An opening beam is hinged, and an electromagnetic release mechanism is provided on the side wall on the other side. One end of the opening beam is hinged to the box, and the other end is connected to the electromagnetic release mechanism. The top of the box is equipped with a mechanical drive mechanism. A corresponding electromagnetic repulsion mechanism is provided below the mechanical drive mechanism, and both the mechanical drive mechanism and the electromagnetic repulsion mechanism are hinged to the opening beam.

The mechanical drive mechanism includes an upper flange, a support column, a lower flange, a gear seat, a rack seat, a hinge plate, a half-axis hinge plate, a compression rod and a spring pull rod. The upper flange is arranged on the top of the box body, The top of the support column is fixed on the bottom surface of the upper flange, the bottom of the support column is provided with a lower flange, the lower flange is provided with a gear seat and a rack seat, and the gear seat is provided with A gear, the rack seat is provided with a rack, the gear and the rack are meshed with each other, the gears are respectively hinged with one end of the hinge plate and the half shaft hinge plate, and the other end of the hinge plate is hinged with the pull rod shaft, The other end of the half-axis hinge plate is hinged with the middle part of the pressure rod, one end of the pressure rod is hinged with the rack seat, and the other end is connected with the spring pull rod, and the compression spring is sleeved on the spring pull rod.

The electromagnetic repulsion mechanism includes a connecting seat, a connecting flange, a repulsive force mechanism and a bistable permanent magnet holding mechanism, the connecting seat is arranged at the bottom of the mechanical drive mechanism, and a bistable permanent magnet holding mechanism, a connection flange is provided below the mechanical drive mechanism, and a repulsion mechanism is provided below the connection flange.

The bistable permanent magnet holding mechanism includes a permanent magnet flange, a spacer sleeve, a magnetic tile, a permanent magnet coil, a moving iron core and a repulsion rod. The spacer sleeve is provided with a magnetic tile, and the upper and lower ends of the magnetic tile are Permanent magnet coils are provided respectively, permanent magnet flanges are respectively provided at the upper and lower ends of the spacer sleeve, and a repulsion rod capable of moving up and down is provided in the spacer sleeve, and a moving iron core is provided on the repulsion rod.

The repulsion mechanism includes a coil base, a gate opening coil, a repulsion disc and a bottom rod, a gate opening coil is provided in the coil base, a repulsion disc is provided below the gate opening coil, and the repulsion disc is connected with a repulsion rod, A bottom bar is provided below the repulsion disk.

An opening buffer is provided below the bottom bar.

The opening and closing monitoring device is provided below the repulsion mechanism, and the opening and closing monitoring device includes an L-shaped seat, a guide seat, a sensor base and a sensor, and the L-shaped seat is fixed on the bottom of the box body. A guide seat is provided on the seat, a sensor base is provided on the guide seat, and a sensor is provided on the sensor base.

The connecting base is provided with a laser range finder.

One end of the compression rod located at the compression spring is provided with a damping buffer.

The upper end of the lower porcelain sleeve is provided with a nylon positioning sleeve.

Compared with prior art, the beneficial effect of the present invention is:

1. A high-voltage bistable side-moving high-speed vacuum circuit breaker of the present invention, which has moderate closing speed, stable and no rebound, high opening speed, no bouncing, automatic opening mechanism when closing fails, and movement The parts are small in weight, the force of the repulsion plate is large, the structure is compact, and the cost is low;

2. A high-voltage bistable side-moving high-speed vacuum circuit breaker of the present invention adopts a mechanical drive mechanism and an electromagnetic repulsion mechanism to make the circuit breaker have an extremely fast movement speed: the opening speed is 4.8m/s～5.0m/ s, closing speed is 2.6m/s～3.0m/s;

3. A high-voltage bistable side-moving high-speed vacuum circuit breaker of the present invention adopts a combination of an electromagnetic repulsion mechanism and a bistable permanent magnet holding mechanism, and has a compact structure and stable movement;

4. A high-voltage bistable side-moving high-speed vacuum circuit breaker of the present invention is designed with a hydraulic buffer device, which greatly reduces the collision damage when opening the gate. The buffer effect is very good, and there is almost no bounce when the gate is opened. The buffer device makes the opening without empty travel, and the opening speed is extremely fast;

5. A high-voltage bistable side-moving high-speed vacuum circuit breaker of the present invention adopts an electromagnetic repulsion mechanism, wherein a permanent magnet mechanism is used to close, and the repulsion mechanism is used to open the switch. The closing speed is moderate and the opening speed is extremely fast;

6. A high-voltage bistable side-moving high-speed vacuum circuit breaker of the present invention reserves a travel for contact wear, improves the service life of the vacuum interrupter, and effectively utilizes the contact wear compensation function.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is a schematic diagram of the partial structure of the solid-sealed pole of the present invention;

Fig. 3 is a schematic diagram of A-A section structure in Fig. 2;

Fig. 4 is a schematic diagram of the structure of B-B in Fig. 2;

Fig. 5 is a schematic diagram of the structure of the box part of the present invention;

Fig. 6 is a schematic diagram of the E-E cross-sectional structure in Fig. 5;

Fig. 7 is a schematic diagram of the F-F sectional structure in Fig. 6;

Fig. 8 is a schematic diagram of a D-D cross-sectional structure in Fig. 5;

Fig. 9 is a schematic diagram of the cross-sectional structure of C-C in Fig. 5;

Fig. 10 is a structural schematic diagram of the mechanical drive mechanism of the present invention;

Fig. 11 is a schematic cross-sectional structure diagram of the mechanical drive mechanism of the present invention;

Fig. 12 is a structural schematic diagram of the electromagnetic repulsion mechanism of the present invention;

Among them, 1. Incoming line conductive clip, 2. Glue filling and sealing, 3. Upper porcelain sleeve, 4. Conductive copper block, 5. Curing colloid, 6. Baffle plate, 7. Soft copper bar, 8. Nylon positioning sleeve, 9. Insulation tie rod, 10. Lock nut, 11. Upper flange of pole, 12. Vacuum interrupter, 13. Lower flange of outgoing line, 14. Lower porcelain sleeve, 15. Box body, 16. Compression spring, 17 , damping buffer, 18, opening cover, 19, electromagnetic tripping mechanism, 20, support column, 21, pressure rod, 22, electromagnetic repulsion mechanism, 23, guide seat, 24, L-shaped seat, 25, opening Buffer, 26, sensor, 27, sensor base, 28, opening beam, 29, rack, 30, rack seat, 31, half shaft hinge plate, 32, hinge plate, 33, slideway, 34, upper method Lan, 35, tie rod shaft, 36, gear, 37, gear seat, 38, copper sleeve, 39, pressure rod pin, 40, laser rangefinder, 41, electric push rod, 42, extension spring pin, 43, guide rod , 44, spring pull rod, 45, lower flange, 46, extension spring, 47, extension spring adjustment rod, 48, sliding sleeve, 49, pin shaft, 50, fixed pin, 51, hinge plate pin shaft, 1201, static touch Head, 1202, bellows, 1203, moving contact, 1901, return spring, 1902, tripping coil, 1903, iron core, 1904, tripping spindle, 1905, hand splitter plate, 1906, base flange, 1907, shell Body, 1908, positioning block, 2201, connecting seat, 2202, permanent magnet flange, 2203, spacer sleeve, 2204, magnetic tile, 2205, permanent magnet coil, 2206, repulsion rod, 2207, opening coil, 2208, moving iron Core, 2209, connecting flange, 2210, coil seat, 2211, repulsion plate, 2212, bottom bar.

Detailed ways

Below in conjunction with accompanying drawing, the present invention is described in further detail:

As shown in Figure 1, a high-voltage bistable side-operated high-speed vacuum circuit breaker includes a solid-sealed pole part and a box body part, and the solid-sealed pole part is arranged on the upper end of the box body part, as shown in Figure 2- 4, the part of the solid-sealed pole includes an upper flange 11 of the pole, an upper porcelain sleeve 3, a vacuum interrupter 12, a lower porcelain sleeve 14, a lower flange 13 for outgoing lines and an insulating pull rod 9. The upper porcelain sleeve 3 is coaxially connected with the lower porcelain sleeve 14, and the outlet flange 13 is arranged between the upper porcelain sleeve 3 and the lower porcelain sleeve 14, and the upper end of the upper porcelain sleeve 3 is provided with a pole upper flange 11. There is a vacuum interrupter 12 inside the upper porcelain sleeve 3, and the insulating rod 9 is connected to the moving contact 1203 of the vacuum interrupter 12, and extends through the lower flange 13 of the outgoing line to the lower porcelain sleeve 14; as shown in Figure 5- As shown in 9, the box part is provided with a box body 15, a gate opening beam 28, a mechanical drive mechanism, an electromagnetic repulsion mechanism 22 and an electromagnetic decoupling mechanism, and the side wall on the inner side of the box body 15 is hinged with a gate Crossbeam 28, the side wall on the other side is provided with electromagnetic decoupling mechanism, and one end of described opening crossbeam 28 is hinged with box body, and the other end is connected with electromagnetic decoupling mechanism, and the top of described box body is provided with mechanical drive mechanism, so A corresponding electromagnetic repulsion mechanism 22 is provided below the mechanical drive mechanism, and both the mechanical drive mechanism and the electromagnetic repulsion mechanism 22 are hinged to the opening beam 28 .

As shown in Figure 2-4, specifically, the upper porcelain sleeve 3 and the lower porcelain sleeve 14 of the solid-sealed pole part are both cylindrical structures, the upper porcelain sleeve 3 and the lower porcelain sleeve 14 are coaxially arranged, and the upper porcelain sleeve 3 and the lower porcelain sleeve 14 are coaxially arranged. A lower flange 13 for outgoing lines is provided between the lower porcelain sleeves 14, wherein, the top of the upper porcelain sleeve 3 is provided with a pole upper flange 11, and the top surface of the pole upper flange 11 is provided with an incoming wire conductive clip 1 , the incoming wire conductive clip 1 is fixed on the upper flange 11 of the pole with a lock nut 10, the outgoing flange 34 is provided with glue filling and sealing 2; the upper porcelain sleeve 3 is provided with a vacuum The arc chamber 12, specifically, the upper porcelain sleeve 3 is provided with a cured colloid 5, which insulates and seals the electrical components of the main circuit. A vacuum interrupter 12 is formed, and the cured colloid 5 is formed by mixing epoxy glue and a curing agent. The mixing ratio is the prior art, and will not be repeated here. The bottom of the static contact 1201 is provided with a moving contact 1203 facing upwards. The moving contact 1203 can move up and down in the vacuum interrupter 12. The lower end of the moving contact 1203 is covered with a bellows 1202, wherein The static contact 1201 and the incoming conductive clip 1 are connected by a conductive copper block 4, and the bottom of the cured colloid 5 is provided with a baffle 6, and the bottom of the moving contact 1203 passes through the cured colloid 5 and the baffle 6 in turn, extending to the upper porcelain Inside the cover 3; when the switch is closed, the moving contact 1203 contacts the static contact 1201; when the switch is opened, the moving contact 1203 is separated from the static contact 1201, and a certain distance is kept to avoid voltage breakdown.

The lower ceramic sleeve 14 is provided with an insulating pull rod 9, the upper end of the insulating pull rod 9 is connected to the movable contact 1203, and the lower end is connected to the mechanical drive mechanism of the box part. There is also a soft copper bar 7 at the connection. In order to reduce the probability of damage caused by the collision between the moving contact 1203 and the static contact 1201 when closing, the two ends of the insulating rod 9 are made of light-weight, high-strength titanium alloy fittings. .

As shown in Figure 5-11, the mechanical drive mechanism includes 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-axis hinge plate 31, and a pressure rod 21 and a spring pull rod 44, the upper flange 34 is arranged on the top of the box body 15, the top of the support column 20 is fixed on the bottom surface of the upper flange 34, and the bottom end of the support column 20 is provided with a lower flange 45 , the lower flange 45 is provided with a gear seat 37 and a rack seat 30, the gear seat 37 is provided with a gear 36, the rack seat 30 is provided with a rack 29, and the gear 36 and the rack 29 are meshed with each other, and the gear 36 is hinged with the hinge plate 32 and one end of the half-axis hinge plate 31 respectively, specifically, through the hinge plate pin 51, that is to say, the hinge plate pin 51 connects the gear 36, the hinge plate 32 Hinged together with the semi-axis hinge plate 31, the other end of the hinge plate 32 is hinged with the pull rod shaft 35, the other end of the semi-axis hinge plate 31 is hinged with the middle part of the pressure rod 21, and one end of the pressure rod 21 is connected with the The rack seat 30 is hinged, and the other end is connected with a spring pull rod 44 , and the compression spring 16 is sleeved on the spring pull rod 44 .

Specifically, in the present application, an upper flange 34 is provided on the top surface of the box body 15, and the upper flange 34 and the box body 15 are fixed by welding. There are four support columns 20, and the support columns 20 are vertically arranged to support The upper end of column 20 is fixed on the bottom surface of upper flange 34, and the lower end of supporting column 20 is provided with lower flange 45, and described lower flange 45 is respectively provided with gear seat 37 and rack seat 30, and described gear seat 37 A gear 36 is arranged on the top, and the gear 36 is installed on the gear seat 37 through a fixed pin 50. A copper sleeve 38 is arranged between the fixed pin 50 and the gear 36. The rack seat 30 is provided with a vertically arranged rack 29. The rack 29 can move up and down on the rack seat 30, the lower end of the rack 29 is connected with the electromagnetic repulsion mechanism 22, the gear 36 meshes with the rack 29, the gear 36 is hinged with the hinge plate 32 and the half-axis hinge plate 31 respectively, and the hinge One end of the plate 32 is hinged with the gear 36, and the other end is hinged with the pull rod shaft 35. The bottom of the upper flange 34 is provided with a slideway 33, and the slideway 33 is provided with a chute. The pull rod shaft 35 can move along the slideway 33. Up and down movement, specifically, the lower end of the pull rod shaft 35 is provided with a pin shaft 49, the pin shaft 49 and the pull rod shaft 35 are perpendicular to each other, the pin shaft 49 is covered with a sliding sleeve 48, and the sliding sleeve 48 moves in the chute, and the half shaft hinge plate One end of 31 is hinged with gear 36, and the other end is hinged with the middle part of depression bar 21; Gear seat 37 is provided with spring pull bar 44, and described spring pull bar 44 can move up and down through gear seat 37, and described spring pull bar 44 is sleeved with Compression spring 16, the compression spring 16 is set, and its function is to provide effective holding force for the moving contact 1203 and the static contact 1201 in the vacuum interrupter 12 when the switch is closed, so as to ensure that the moving contact 1203 and the static contact 1201 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 the pressure rod 21, the middle part of the pressure rod 21 is hinged with the half-axis hinge plate 31, one end is hinged with the spring pull rod 44, and the other One end is hinged on the rack seat 30 by the pressure bar pin 39, thus forming a lever with the pressure bar pin 39 as a fixed point.

One end of the compression rod 21 located at the compression spring 16 is provided with a damping buffer 17 . In order to avoid the rebound of the pressure rod 21 when it is in motion, a damping buffer 17 is provided at the free end of the pressure rod 21. Provide time guarantee for fast opening, and at the same time, the damping buffer 17 has a short-term blocking buffer when the fast opening is completed. After the opening is completed, the spring slowly pulls the pressure rod 21 to the limit position, that is, the position when the pressure rod 21 is in the upper position. .

The upper end of the lower porcelain sleeve 14 is provided with a nylon positioning sleeve 8, one is to increase the creepage distance, and the other is to radially locate the insulating pull rod 9.

The working process of the mechanical drive mechanism is as follows: when the switch is closed, the electromagnetic repulsion mechanism 22 does not act, and at this time the rack 29 does not move downward, the compression spring 16 is in the maximum compression state, and the spring pull rod 44 tightens the pressure rod 21, so that the pressure rod 21 always has an upward pressure. At this time, the middle part of the pressure rod 21 is in the lower position, and the pressure rod 21 passes through the half-axis hinge plate 31-hinge plate 32-tension rod shaft 35-insulation rod 9-moving contact 1203 in turn, and the moving contact The head 1203 is lifted up, so that the moving contact 1203 and the static contact 1201 are in close contact, and are in the closed state; when the gate is opened, the electromagnetic repulsion mechanism 22 operates, and the rack 29 is driven downward by the electromagnetic repulsion mechanism 22. Movement, the tooth bar 29 moving downwards drives the gear 36 to rotate. After the gear 36 rotates, the pressure bar 21 connected by the half-axis hinge plate 31 is lifted. At this time, the middle part of the pressure bar 21 is in the upper position. The hinged hinge plate 32 also moves downward, and the movable contact 1203 is pulled downward through the hinge plate 32-pull rod shaft 35-insulating rod 9-moving contact 1203, so that the moving contact 1203 is separated from the static contact 1201, In the opening state, when the gear 36 drives the hinge plate 32 and the half-axis hinge plate 31 to move, since the free end of the pressure rod 21 always has an upward pulling force, the opening of the brake does not begin until the pressure rod 21 reaches the limit, which will increase the opening of the gate. Therefore, a damping buffer 17 is set at the free end of the pressure rod 21, its function is to prevent the rebound of the pressure rod 21 when it moves, to ensure that there is no extra idle travel when the brake is opened, and to provide a time guarantee for rapid brake opening At the same time, the damping buffer 17 has a short-term blocking buffer when the brake is opened quickly. After the brake is opened, the spring slowly pulls the pressure bar 21 to the limit position, that is, the position when the pressure bar 21 is in the upper position. When closing, the electromagnetic repulsion mechanism 22 drives the tooth bar 29 to move upwards, and the tooth bar 29 moving upwards drives the gear 36 to rotate, and drives the pull bar shaft 35 to move upwards through the half-axis hinge plate 31 and the hinge plate 32. When the moving contact 1203 and When the static contact 1201 is in contact with the vacuum interrupter 12, the moment the moving contact 1203 touches the static contact 1201, there will be a rebound tendency. At this time, the moving contact 1203 will exert pressure in the opposite direction, pressing the pressure rod 21 downward. At this time, under the action of the compression spring 16, the reverse pressure is greatly buffered, and effectively prevents the rebound of the moving contact 1203 and the static contact 1201 when closing, and compresses the spring after the closing is in place. 16 provides the pressure required for rated work between the movable contact 1203 and the static contact 1201. At this time, the damping buffer 17 will quickly return to the initial position, preparing for the next tripping damping.

As shown in Figure 12, the electromagnetic repulsion mechanism 22 includes a connecting seat 2201, a connecting flange 2209, a repulsive force mechanism and a bistable permanent magnet holding mechanism, the connecting seat 2201 is arranged at the bottom of the mechanical drive mechanism, and the connecting seat There is a bistable permanent magnet holding mechanism under the 2201. The bistable permanent magnet holding mechanism provides power for closing and provides holding force for opening and closing. The bottom of the mechanical drive mechanism is provided with a connecting flange 2209, a repulsion mechanism is provided under the connecting flange 2209, and the repulsion mechanism provides an instantaneous driving force for opening the circuit breaker.

The bistable permanent magnet holding mechanism includes a permanent magnet flange 2202, a spacer sleeve 2203, a magnetic tile 2204, a permanent magnet coil 2205, a moving iron core 2208, and a repulsion rod 2206. The spacer sleeve 2203 is provided with a magnetic tile 2204, The upper and lower ends of the magnetic tile 2204 are respectively provided with permanent magnet coils 2205, the upper and lower ends of the spacer sleeve 2203 are respectively provided with permanent magnet flanges 2202, and the spacer sleeve 2203 is also provided with a repulsion rod capable of moving up and down 2206, the repulsion rod 2206 is provided with a moving iron core 2208, the repulsion rod 2206 and the moving iron core 2208 are connected as one through interference fit, the upper end of the repulsion rod 2206 is connected with the rack 29, and the lower end is connected with the bottom rod 2212. The repulsion rod 2206 is made of titanium alloy, and the repulsion plate 2211, spacer sleeve 2203, and bottom rod 2212 are made of high-strength aluminum alloy, which minimizes the quality of the moving parts and helps to improve the running speed of the moving parts.

The repulsion mechanism includes a coil base 2210, a gate opening coil 2207, a repulsion disc 2211 and a bottom rod 2212. The coil base 2210 is provided with a gate opening coil 2207, and a repulsion disc 2211 is provided below the gate opening coil 2207. The repulsion disk 2211 is connected with the repulsion rod 2206, and the bottom rod 2212 is provided under the repulsion disk 2211. The opening coil 2207 is wound with glass fiber-wrapped polyester film copper flat wire. After winding, it is put into the coil seat 2210 for use. The epoxy resin is vacuum infused and cured, which greatly improves the insulation performance and breakdown voltage.

The connecting seat 2201 is provided with a laser range finder 40, and the upper plane of the pressure rod 21 and the lower plane of the gear seat 37 in this device reserve a certain distance when closing, which is not only the limit when opening the gate, but also the distance between the upper plane and the lower plane of the gear seat 37. Vacuum interrupter 12 contact wear compensation spacing. The downward pressure of the pressure rod 21 decreases with the burning of the contacts of the vacuum interrupter 12 until it loses its function. In order to monitor the burning loss in real time, a laser range finder is installed on the mounting seat of the electromagnetic repulsion mechanism 22 40, through a hole on the lower flange 45 to irradiate onto the lower plane of the pressure rod 21, thereby realizing real-time distance measurement.

An opening buffer 25 is provided under the bottom rod 2212 to reduce impact damage during opening, and at the same time, greatly reduce the bounce of opening.

The opening and closing monitoring device is provided below the repulsion mechanism, and the opening and closing monitoring device includes an L-shaped seat 24, a guide seat 23, a sensor base 27 and a sensor 26, and the L-shaped seat 24 is fixed on the bottom of the box body 15. At the bottom, the L-shaped seat 24 is provided with a guide seat 23, the guide seat 23 is provided with a sensor base 27, the sensor base 27 is provided with a sensor 26, and the sensor 26 is set to check whether the opening and closing are in place. Monitoring to ensure the reliability of opening and closing.

As shown in Figures 5 and 7, the electromagnetic decoupling mechanism includes a U-shaped seat, and an electric push rod 41 is arranged on the U-shaped seat, and the electric push rod 41 is arranged under the opening crossbeam 28, and the opening crossbeam 28 The end is provided with extension spring pin 42, and extension spring pin 42 is provided with extension spring 46, and U-shaped seat is provided with extension spring adjusting lever 47, and one end of extension spring 46 is connected with extension spring adjusting lever 47, and the other end is connected with extension spring pin. 42 connection, an electromagnetic tripping mechanism 19 is provided above the U-shaped seat, and the tripping device includes a base flange 1906, a housing, 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, and the other side of the base flange 1906 is provided with a housing, and a tripping coil 1902 is arranged in the housing, and the tripping coil 1902 There is a movable iron core 1903 inside, and the iron core 1903 is fixed on the tripping main shaft 1904. One end of the tripping main shaft 1904 extends to the outside of the base flange 1906, and the other end extends to the outside of the housing. The buckle spindle 1904 extends out of the base flange 1906 and one end is provided with a hand splitter 1905 for manually controlling the electromagnetic tripping mechanism 19. The outer side of the hand splitter 1905 is provided with a trip cover 18 for protecting the hand splitter 1905 to avoid In case of misoperation, the tripping main shaft 1904 is fitted with a return spring 1901 on the outside of one end extending out of the casing, and a positioning block 1908 is provided at the end. 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, and the control is convenient. The control circuit of the electromagnet is the prior art, and it will not be described as an innovative point here. The telescoping rod of electric push rod 41 is in retraction position in normal state, and after protective automatic opening, the effect of electric push rod is to push the opening beam 28 upwards to original position.

The technical features not described in the present invention can be realized by existing technologies, and will not be repeated here. The above-mentioned technical solution is only an embodiment of the present invention. For those skilled in the art, on the basis of the application methods and principles disclosed in the present invention, it is easy to make various types of improvements or deformations, and is not limited to The methods described in the above specific embodiments of the present invention, therefore, the above-described methods are only preferred and not limiting.

Claims (10)

1. A high-voltage bistable side-acting high-speed vacuum circuit breaker, characterized in that it includes a solid-sealed pole part and a box part, the solid-sealed pole part is arranged on the upper end of the box part, and the solid-sealed The pole part includes the upper flange of the pole, the upper porcelain sleeve, the vacuum interrupter, the lower porcelain sleeve, the lower flange of the outgoing line and the insulating rod. The upper porcelain sleeve and the lower porcelain sleeve are connected coaxially, and the upper porcelain sleeve and There is a lower flange between the lower porcelain bushings, a pole upper flange is provided on the upper end of the upper porcelain bushing, a vacuum interrupter is arranged inside the upper porcelain bushing, and the insulating pull rod is connected with the vacuum interrupter. The moving contact is connected and extends through the lower flange of the outgoing line to the lower porcelain sleeve; the box part is provided with a box body, a gate opening beam, a mechanical drive mechanism, an electromagnetic repulsion mechanism and an electromagnetic decoupling mechanism, and the inside of the box body The side wall on one side is hinged with an opening beam, and the side wall on the other side is provided with an electromagnetic release mechanism. One end of the opening beam is hinged to the box, and the other end is connected to the electromagnetic release mechanism. A mechanical drive mechanism is provided on the top, and a corresponding electromagnetic repulsion mechanism is provided below the mechanical drive mechanism. Both the mechanical drive mechanism and the electromagnetic repulsion mechanism are hinged to the opening beam. 2. A high-voltage bistable side-acting high-speed vacuum circuit breaker according to claim 1, wherein the mechanical drive mechanism includes an upper flange, a supporting column, a lower flange, a gear seat, and a rack seat , hinge plate, semi-axis hinge plate, pressure rod and spring pull rod, the upper flange is arranged on the top of the box body, the top of the support column is fixed on the bottom surface of the upper flange, and the bottom end of the support column is set There is a lower flange, the lower flange is provided with a gear seat and a rack seat, the gear seat is provided with a gear, the rack seat is provided with a rack, and the gear and the rack are meshed with each other. The gears are respectively hinged with the hinge plate and one end of the semi-axis hinge plate, the other end of the hinge plate is hinged with the pull rod shaft, the other end of the semi-axis hinge plate is hinged with the middle part of the pressure rod, and one end of the pressure rod is connected with the middle part of the pressure rod. The rack seat is hinged, and the other end is connected with a spring pull rod, and a compression spring is sleeved on the spring pull rod. 3. A high-voltage bistable side-acting high-speed vacuum circuit breaker according to claim 1, wherein the electromagnetic repulsion mechanism includes 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, a bistable permanent magnet holding mechanism is arranged under the connecting seat, a connecting flange is arranged under the mechanical driving mechanism, and a connecting flange is arranged under the connecting flange. There is a repulsive mechanism. 4. A high-voltage bistable side-acting high-speed vacuum circuit breaker according to claim 3, wherein the bistable permanent magnet holding mechanism includes a permanent magnet flange, a spacer sleeve, a magnetic tile, a permanent magnet A coil, a moving iron core and a repulsion rod, the spacer sleeve is provided with a magnetic tile, the upper and lower ends of the magnetic tile are respectively provided with a permanent magnet coil, and the upper and lower ends of the spacer sleeve are respectively provided with a permanent magnet flange, A repulsion rod capable of moving up and down is also arranged in the spacer sleeve, and a moving iron core is arranged on the repulsion rod. 5. A high-voltage bistable side-acting high-speed vacuum circuit breaker according to claim 3, characterized in that, the repulsion mechanism includes a coil base, an opening coil, a repulsion disc and a bottom rod, and the inside of the coil base An opening coil is provided, and a repulsion disk is arranged under the opening coil, and the repulsion disk is connected with a repulsion rod, and a bottom bar is arranged under the repulsion disk. 6. A high-voltage bistable side-acting high-speed vacuum circuit breaker according to claim 5, characterized in that, an opening buffer is provided below the bottom rod. 7. A high-voltage bistable side-acting high-speed vacuum circuit breaker according to claim 5, characterized in that an opening and closing monitoring device is provided below the repulsion mechanism, and the opening and closing monitoring device includes L Type seat, guide seat, sensor base and sensor, the L-shaped seat is fixed on the bottom of the box body, the L-shaped seat is provided with a guide seat, the guide seat is provided with a sensor base, and the sensor base is provided with There are sensors. 8. A high-voltage bistable side-acting high-speed vacuum circuit breaker according to claim 3, characterized in that a laser range finder is provided on the connecting base. 9. A high-voltage bistable side-acting high-speed vacuum circuit breaker according to claim 1, wherein a damping buffer is provided at one end of the compression rod located at the compression spring. 10. A high-voltage bistable side-acting high-speed vacuum circuit breaker according to claim 1, wherein the upper end of the lower ceramic sleeve is provided with a nylon positioning sleeve.