CN114709108B - Vacuum circuit breaker with corrugated pipe damage protection function - Google Patents
Vacuum circuit breaker with corrugated pipe damage protection function Download PDFInfo
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- CN114709108B CN114709108B CN202210439389.4A CN202210439389A CN114709108B CN 114709108 B CN114709108 B CN 114709108B CN 202210439389 A CN202210439389 A CN 202210439389A CN 114709108 B CN114709108 B CN 114709108B
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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
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/62—Heating or cooling of contacts
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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
Abstract
The invention relates to the technical field of circuit breakers, in particular to a vacuum circuit breaker with a corrugated pipe breakage protection function. Technical problems: the corrugated pipe is damaged in frequent mechanical deformation, so that the vacuum arc-extinguishing chamber leaks air, the vacuum environment in the vacuum arc-extinguishing chamber is destroyed, and the vacuum arc-extinguishing chamber cannot extinguish the high-voltage arc. Embodiments are described below: a vacuum circuit breaker with bellows breakage protection function comprises a mechanism box; the front part of the mechanism box is fixedly connected with three equidistant arc-extinguishing chambers, the lower ends of the inner parts of the three arc-extinguishing chambers are fixedly connected with movable end cover plates, and the three movable end cover plates are fixedly connected with a breakage breaking mechanism. According to the invention, through the breakage breaking mechanism, when the corrugated pipe is broken, the vacuum circuit breaker is prevented from breaking, the generated high-voltage arc melts or burns the switch contact, the first isolation block and the second isolation block which are made of ceramics are prevented from being extruded and damaged by the movable conducting rod, and the movable conducting rod and the static conducting rod which are in contact with the first isolation block and the second isolation block are prevented from being still in an electrified state.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a vacuum circuit breaker with a corrugated pipe breakage protection function.
Background
The vacuum circuit breaker is a circuit breaker with high vacuum in both an arc extinguishing medium and an insulating medium in a contact gap after arc extinguishing, and mainly comprises three parts: the vacuum interrupter comprises a vacuum interrupter, an electromagnetic or spring operating mechanism, a bracket and other components, wherein the vacuum interrupter is a core component of a vacuum circuit breaker.
The vacuum interrupter passes through the good insulating effect of intraductal vacuum, after high voltage circuit cuts off the power, can extinguish high voltage arc and restrain the electric current rapidly, but current vacuum interrupter is all sealed to moving the conducting rod through the bellows, and the bellows can cause the pipe wall damage at long-time flexible in-process, lead to vacuum interrupter gas leakage, the vacuum environment in the vacuum interrupter has been destroyed, make the vacuum interrupter unable effectively extinguish high voltage arc, and moving contact and the fixed contact in the vacuum interrupter contact the intensification for a long time, cause the tired of moving contact, influence the breaking capacity of vacuum interrupter.
Therefore, it is necessary to solve the above problems by inventing a vacuum circuit breaker with a moving and static contact temperature reduction protection and a bellows breakage protection function.
Disclosure of Invention
In order to overcome the defects that after the corrugated pipe stretches for a long time, the pipe wall is damaged in frequent mechanical deformation, so that the vacuum arc-extinguishing chamber leaks air, and a moving contact and a fixed contact in the vacuum arc-extinguishing chamber are contacted and heated for a long time, so that the moving contact is tired, the invention provides the vacuum circuit breaker with the functions of cooling and protecting the moving contact and the fixed contact and protecting the corrugated pipe.
The technical implementation scheme of the invention is as follows: the utility model provides a vacuum circuit breaker with damaged protect function of bellows, including the mechanism case, the rigid coupling has spring operating means in the mechanism case, spring operating means is used for controlling vacuum circuit breaker's floodgate that opens and shuts, the front portion demountable installation of mechanism case has three equidistant explosion chamber, the equal demountable installation of the lower extreme of three explosion chamber inside has the movable end apron, equal sliding connection has the movable conducting rod on the three movable end apron, three movable conducting rod respectively sliding connection is in adjacent explosion chamber, the lower extreme of three movable conducting rod all is connected with spring operating means, the upper end of three movable conducting rod all rigid coupling has the movable contact, all demountable installation has the bellows on the three movable end apron upper surface, the upper end of three bellows respectively demountable installation in adjacent three movable conducting rod, the upper end of three explosion chamber inside all rigid coupling has the movable end apron, all rigid coupling has the movable conducting rod on the three movable end apron, all lower extreme rigid coupling has the movable conducting rod on the three movable end apron, the broken shutdown mechanism is used for breaking shutdown mechanism and the movable conducting rod all is connected with spring operating means, the broken mechanism is used for breaking down the mechanism and the broken mechanism of vacuum circuit breaker, the broken mechanism is arranged in the broken mechanism of vacuum circuit breaker, the broken mechanism is isolated with the broken mechanism of the broken mechanism, the broken mechanism of vacuum circuit breaker is isolated with the broken mechanism of the movable mechanism, and the broken mechanism is arranged in the broken down and is isolated with the broken down with the broken mechanism of the broken mechanism.
Further, broken disconnection mechanism is including first shield cover, first shield cover is equipped with three, three first shield cover rigid coupling respectively in the upper surface of three moving end apron, all sealed sliding connection has the second shield cover on the three first shield cover, three second shield cover respectively with adjacent moving conducting rod sealed sliding connection, the left side of three bellows upper surface all rigid coupling has first u type support, all rotate on the three first u type support and be connected with first bull stick, the front portion of three first bull stick all rigid coupling has first gear, the left side of three moving conducting rod upper portion all rigid coupling has first pinion rack, the rear portion of three first bull stick all rigid coupling has the turbine, the left side at three first u type support rear portion all rigid coupling has the button head support, all rotate on the three button head support and be connected with the worm, the left side of three second shield cover inner wall all rigid coupling has the pinion rack, the right side of three first pinion rack has first pinion rack, the third first pinion rack of third side and the second rack, the second rack assembly all has the third pinion rack assembly of disconnection, the third rack assembly all has the third pinion rack assembly all to be connected with the left side of disconnection.
Further, the three second shielding cases and the three first u-shaped brackets are made of ceramic materials and are used for preventing conduction and heat dissipation.
Further, the disconnection assembly comprises first isolation blocks, the first isolation blocks are three, the three first isolation blocks are respectively connected to the left sides of the upper parts of the adjacent second shielding covers in a sliding mode, two first sliding grooves are formed in the three first isolation blocks, the two first sliding grooves on the same first isolation blocks are symmetrical up and down, two sealing grooves are formed in the three first isolation blocks, the two sealing grooves on the same first isolation blocks are symmetrical up and down, the two sealing grooves are respectively located on the inner sides of the two first sliding grooves, rubber sealing sleeves are fixedly connected in the six sealing grooves, second isolation blocks are connected to the right sides of the upper parts of the three second shielding covers in a sliding mode, second sliding grooves are formed in the middle parts of the three second isolation blocks, first springs are fixedly connected between the three first isolation blocks and the adjacent second shielding covers, and first springs are fixedly connected between the three second isolation blocks and the adjacent second shielding covers.
Further, the three first isolation blocks and the three second isolation blocks are all ceramic and are used for preventing the power-on of the movable conducting rod and the static conducting rod.
Further, the middle part of three first isolated piece right sides all is equipped with the protruding upper and lower two parts of three second isolated piece left surfaces of rectangle and all is equipped with the rectangle arch, and the rectangle arch on the three first isolated pieces cooperates with the second spout on the adjacent second isolated piece respectively, and two rectangle archs on the three second isolated pieces cooperate with two first spouts on the adjacent first isolated piece respectively for the laminating of first isolated piece and second isolated piece.
Further, the isolation mechanism is including first sliding plate, first sliding plate is equipped with six, upper and lower adjacent two first sliding plate is a set of, three first sliding plate of group is sliding connection respectively in adjacent first isolation piece, two first sliding plate in a set of are located adjacent two first spouts respectively, the rigid coupling has the second spring between six first sliding plates respectively and the adjacent first isolation piece, six second springs are located adjacent first spouts respectively, on same first isolation piece, the front and back both ends of two first sliding plate opposite sides all rigid couplings have the third pinion, all rotate on the third first isolation piece and be connected with two second bull sticks, two second bull sticks on same first isolation piece up-down symmetry set up, the front and back both sides of six second bull sticks all rigid coupling have the third gear, on same first isolation piece, four third gears respectively with adjacent third pinion meshing, the front and back both sides of six second bull sticks all rigid coupling have the fourth gear, same second pinion is located the same first and second isolation piece, two adjacent second bull sticks are located the same second and are connected on the same first and second isolation piece, the same second has the same second bull stick, the same second is connected on the same second isolation piece, the front and back both sides.
Further, still including guide arm cooling structure, guide arm cooling structure is equipped with three, three guide arm cooling structure rigid coupling respectively in adjacent quiet end cover board lower surface, guide arm cooling structure is used for the quiet conducting rod under the involution state and moves the cooling of conducting rod heat dissipation, the guide arm cooling structure is including the ring mount, the ring mount is equipped with six, adjacent two ring mounts are a set of around, three group's ring mount rigid coupling respectively in adjacent quiet end cover board lower surface, equal sliding connection has the ring carriage on the six ring mounts, the six ring mounts respectively with the adjacent ring carriage between the rigid coupling have the third spring respectively, the left and right sides on six ring carriage upper portions all has the fifth tooth board through the connecting block rigid coupling, the upper portion of three explosion chamber inner wall all rigid coupling has two second u type supports, two second u type supports left and right symmetry sets up in same explosion chamber, the looks side of two second u type supports all rotates and is connected with the third bull stick, the front and back both ends rigid coupling of six third bull stick have the fifth gear chamber, the equal sliding connection has the third tooth board to the right side of six ring mount, the equal sliding connection has the fifth tooth board to the adjacent tooth board, the equal twelve tooth board of six arc-shaped board on the same arc-shaped board of the same, the equal arc-shaped pipe of the side of the adjacent ring carriage upper portion, the equal sliding connection has the six arc-shaped tooth board of the arc-shaped plate of the same, the second tooth board of the equal arc-shaped plate of the adjacent ring is located.
Further, the arc-shaped heat dissipation frame is ceramic and used for preventing cooling liquid from conducting electricity.
The invention has the beneficial effects that: according to the invention, after the corrugated pipe is damaged, the external atmospheric pressure is utilized to drive the second shielding cover to move upwards, so that the movable conducting rod moves downwards, the situation that a vacuum circuit breaker is opened by operating a worker is avoided, the generated high-voltage arc melts or burns off a switch contact, even causes explosion and causes casualties, rectangular protrusions on three first insulating blocks are respectively matched with second sliding grooves on adjacent second insulating blocks, two rectangular protrusions on the three second insulating blocks are respectively matched with two first sliding grooves on the adjacent first insulating blocks, the bonding force of the first insulating blocks and the second insulating blocks is improved, the movable conducting rod which is made of ceramic is prevented from being extruded and damaged by the movable conducting rod which is still in an upward moving trend, and the movable conducting rod and the static conducting rod which are in contact with the first insulating blocks and the second insulating blocks are still in an electrified state by utilizing the insulating property of the ceramic is avoided; through isolating mechanism, utilize first isolated piece and the opposite side of second isolated piece to remove, the air in the adjacent seal groove of transmission two fourth pinion racks right movable extrusion, make two rubber seal cover expansion, gap between the first isolated piece of closely laminating and the second isolated piece seals, avoid high vacuum cavity to receive outside air's destruction between first shield cover and the quiet end cover board, make whole explosion chamber can not use, cause the wasting of resources, through guide arm cooling structure, utilize the second shield cover to reciprocate, two adjacent arc heat dissipation frames of transmission are driven respectively to opposite side removal, and pour into the coolant liquid to two square tube through external feed liquor device, dispel the heat the cooling to the movable conductive rod of closely laminating and quiet conductive rod, avoid high temperature to cause the movable contact fatigue, influence the switching-on ability of vacuum explosion chamber.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a cross-sectional view showing a first perspective structure of the breakage breaking mechanism of the present invention.
Fig. 3 is a sectional view showing a second perspective structure of the breakage breaking mechanism of the present invention.
Fig. 4 is a partial perspective view of the breakage mechanism according to the present invention.
Fig. 5 is a schematic view showing a first perspective structure of the breakage breaking mechanism according to the present invention.
Fig. 6 is a sectional view showing a third perspective structure of the breakage breaking mechanism according to the present invention.
Fig. 7 is a schematic view showing a second perspective structure of the breakage breaking mechanism according to the present invention.
Fig. 8 is a perspective cross-sectional view of an isolation mechanism of the present invention.
Fig. 9 is a schematic partial perspective view of an isolation mechanism according to the present invention.
FIG. 10 is a perspective cross-sectional view of a guide bar cooling structure of the present invention.
FIG. 11 is a partial perspective view of a guide bar cooling structure according to the present invention.
FIG. 12 is a schematic perspective view of a guide bar cooling structure according to the present invention.
Reference numerals: 101-mechanism case, 102-arc extinguishing chamber, 103-moving end cover plate, 104-moving conductive rod, 105-bellows, 106-stationary end cover plate, 107-stationary conductive rod, 201-first shield, 202-second shield, 203-first u-shaped bracket, 204-first rotating rod, 205-first gear, 206-first toothed plate, 207-turbine, 208-round head bracket, 209-worm, 210-cross plate bracket, 211-second toothed plate, 212-second gear, 213-first isolation block, 2131-first sliding groove, 2132-sealing groove, 214-second isolation block, 2141-second sliding groove, 215-first spring, 301-first sliding plate, 302-second spring, 303-third toothed plate, 304-second rotating rod, 305-third gear, 306-fourth gear, 307-second sliding plate, 308-fourth toothed plate, 401-round ring bracket, 402-round ring sliding bracket, 403-third spring, 404-fifth toothed plate, 405-third toothed plate, 406-third toothed plate, 214-second rotating rod, 2141-second toothed plate, 408-third toothed plate, seven-shaped bracket, 408-sixth toothed plate, arc-shaped bracket, 408-sixth toothed plate.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Example 1
1-10, a vacuum circuit breaker with bellows breakage protection function, including a mechanism box 101, a spring operation device is fixedly connected in the mechanism box 101, the spring operation device is used for controlling an opening and closing brake of the vacuum circuit breaker, three equidistant arc-extinguishing chambers 102 are detachably arranged at the front part of the mechanism box 101, movable end cover plates 103 are detachably arranged at the lower ends of the inner parts of the three arc-extinguishing chambers 102, movable conducting rods 104 are slidably connected on the three movable end cover plates 103, the three movable conducting rods 104 are slidably connected with adjacent arc-extinguishing chambers 102 respectively, the lower ends of the three movable conducting rods 104 are connected with the spring operation device, movable contacts are welded at the upper ends of the three movable conducting rods 104, bellows 105 are detachably arranged on the upper surfaces of the three movable end cover plates 103, the upper ends of the three bellows 105 are detachably arranged on the adjacent three movable conducting rods 104 respectively, the bellows 105 is used for dynamically sealing the movable conductive rod 104, the upper ends of the interiors of the three arc-extinguishing chambers 102 are welded with the static end cover plates 106, the three static end cover plates 106 are welded with the static conductive rods 107, the lower ends of the three static conductive rods 107 are welded with the static contacts, the movable conductive rod 104 is moved up and down by a spring operation device, the movable conductive rod 104 and the static conductive rod 107 are contacted or separated for controlling the opening and closing of the vacuum circuit breaker, the three movable end cover plates 103 are fixedly connected with a breakage breaking mechanism, the breakage breaking mechanism is used for breaking the static conductive rod 107 and the movable conductive rod 104, a high vacuum cavity used for arc extinguishing is arranged between the breakage breaking mechanism and the static end cover plates 106, the breakage breaking mechanism is connected with an isolation mechanism in a sliding way, the isolation mechanism is used for isolating external air from entering between the breakage breaking mechanism and the static end cover plates 106, external air enters through the breakage of the bellows 105 to drive the breakage breaking mechanism to work, the movable conducting rod 104 is far away from the static conducting rod 107, so that the vacuum circuit breaker is prevented from being in a closing state, and after the movable conducting rod 104 is far away from the static conducting rod 107, the isolation mechanism works to seal the breakage breaking mechanism, so that the high vacuum cavity between the breakage breaking mechanism and the static end cover plate 106 is prevented from being damaged by outside air.
When the corrugated pipe 105 is damaged, external gas enters the damaged breaking mechanism through the corrugated pipe 105, the damaged breaking mechanism moves upwards to work under the action of atmospheric pressure, the damaged breaking mechanism works to enable the movable conducting rod 104 to be far away from the static conducting rod 107, the vacuum circuit breaker is prevented from being in a closing state, the situation that a worker operates the vacuum circuit breaker to break a gate is avoided, the generated high-voltage arc melts or burns black switch contacts, even the explosion is caused, casualties are caused, the movable conducting rod 104 is far away from the static conducting rod 107 and drives the isolating mechanism to work, the isolating mechanism works to seal the damaged breaking mechanism, and a high-vacuum cavity between the damaged breaking mechanism and the static end cover plate 106 is prevented from being damaged by external air, so that the whole arc extinguishing chamber 102 cannot be used, and resource waste is caused.
When the movable conducting rod 104 is far away from the static conducting rod 107, the vacuum circuit breaker is in an open state, the whole circuit controlled by the vacuum circuit breaker is in a power-off state, and when the movable conducting rod 104 is checked by a worker, the damage of the corrugated pipe 105 can be confirmed by checking the position of the movable conducting rod 104, and the subsequent replacement and maintenance can be performed.
Example 2
On the basis of embodiment 1, as shown in fig. 2-5, the breakage breaking mechanism comprises three first shielding cases 201, the three first shielding cases 201 are respectively welded on the upper surfaces of the three movable end cover plates 103, the three first shielding cases 201 are respectively connected with second shielding cases 202 in a sealing sliding manner, the second shielding cases 202 are used for pneumatic transmission, the three second shielding cases 202 are respectively connected with adjacent movable conducting rods 104 in a sealing sliding manner, the left sides of the upper surfaces of the three bellows 105 are respectively welded with a first u-shaped bracket 203, the three second shielding cases 202 and the three first u-shaped brackets 203 are made of ceramic materials and are used for preventing conduction and heat dissipation, the three first u-shaped brackets 203 are respectively connected with a first rotating rod 204 in a rotating manner, the front parts of the three first rotating rods 204 are respectively connected with a first gear 205 in a key manner, the left sides of the upper parts of the three movable conducting rods 104 are respectively welded with a first toothed plate 206, the three first toothed plates 206 are respectively meshed with the adjacent first gears 205, the rear parts of the three first rotating rods 204 are respectively connected with the turbines 207 in a key way, the left sides of the rear parts of the three first u-shaped brackets 203 are respectively welded with round head brackets 208, the three round head brackets 208 are respectively connected with worms 209 in a rotating way, the three worms 209 are respectively matched with the adjacent turbines 207, the left sides of the inner walls of the three second shielding cases 202 are respectively welded with cross plate brackets 210, the right sides of the three cross plate brackets 210 are respectively welded with second toothed plates 211, the left parts of the three worms 209 are respectively connected with second gears 212 in a key way, the three second toothed plates 211 are respectively matched with the adjacent second gears 212, when the corrugated pipe 105 is broken, the outside atmospheric pressure is used for driving the second shielding cases 202 to move upwards, so that the conducting rod 104 is far away from the static conducting rod 107, high vacuum insulation mediums for arc extinction cannot be provided in the arc extinction chamber 102 when the vacuum circuit breaker is prevented from being closed, the left sides of the upper parts of the three second shielding cases 202 are all slidably connected with a disconnecting assembly for disconnecting the movable conductive rod 104 and the static conductive rod 107.
As shown in fig. 6, 7 and 8, the disconnecting assembly comprises a first isolation block 213, the first isolation block 213 is provided with three first isolation blocks 213, the three first isolation blocks 213 are respectively connected to the left side of the upper part of the adjacent second shielding case 202 in a sliding way, two first sliding grooves 2131 are respectively formed on the three first isolation blocks 213, the two first sliding grooves 2131 on the same first isolation block 213 are vertically symmetrical, two sealing grooves 2132 are respectively formed on the three first isolation blocks 213, the two sealing grooves 2132 on the same first isolation block 213 are vertically symmetrical, the two sealing grooves 2132 are respectively positioned on the inner sides of the two first sliding grooves 2131, rubber sealing sleeves are fixedly connected in the six sealing grooves 2132 and are used for sealing gaps between the adhered first isolation blocks 213 and the second isolation blocks 214, the right sides of the upper parts of the three second shielding cases 202 are respectively and slidably connected with a second isolation block 214, the three first isolation blocks 213 and the three second isolation blocks 214 are all ceramic, and are used for preventing the movable conductive rod 104 and the static conductive rod 107 from being electrified, the middle parts of the three second isolation blocks 214 are respectively provided with a second chute 2141, a first spring 215 is fixedly connected between the three first isolation blocks 213 and the adjacent second shielding cases 202, a first spring 215 is fixedly connected between the three second isolation blocks 214 and the adjacent second shielding cases 202, the movable conductive rod 104 which moves downwards is not extruded to the first isolation blocks 213 and the second isolation blocks 214 any more, and under the action of the first spring 215, the movable conductive rod 104 is prevented from moving towards the opposite sides of the first isolation blocks 213 and the second isolation blocks 214, and the movable conductive rod 104 is still in a communicating state with the static conductive rod 107 through the first isolation blocks 213 and the second isolation blocks 214.
As shown in fig. 6, 7 and 8, rectangular protrusions are disposed in the middle of the right sides of the three first isolation blocks 213, rectangular protrusions are disposed on the upper and lower portions of the left sides of the three second isolation blocks 214, the rectangular protrusions on the three first isolation blocks 213 are respectively matched with the second sliding grooves 2141 on the adjacent second isolation blocks 214, and two rectangular protrusions on the three second isolation blocks 214 are respectively matched with the two first sliding grooves 2131 on the adjacent first isolation blocks 213 for bonding the first isolation blocks and the second isolation blocks, so that the first isolation blocks and the second isolation blocks made of ceramics are prevented from being damaged by extrusion of movable conductive rods.
As shown in fig. 7, 8 and 9, the isolation mechanism comprises a first sliding plate 301, six first sliding plates 301 are provided, two first sliding plates 301 adjacent to each other up and down are in a group, two first sliding plates 301 in a group are respectively located in two adjacent first sliding grooves 2131, three groups of first sliding plates 301 are respectively located in two adjacent first sliding grooves 2131, a second spring 302 is fixedly connected between the six first sliding plates 301 and the adjacent first isolation blocks 213, the six second springs 302 are respectively located in the adjacent first sliding grooves 2131, a third toothed plate 303 is welded at the front and rear parts of the opposite sides of the two first sliding plates 301 on the same first isolation block 213, two second rotating rods 304 are respectively connected to the three first isolation blocks 213 in a rotating way, the two second rotating rods 304 on the same first isolation block 213 are symmetrically arranged up and down, the front and rear parts of the six second rotating rods 304 are respectively connected with a third gear in a key way, on the same first isolation block 213, four third gears 305 are respectively meshed with adjacent third toothed plates 303, front and rear portions of six second rotating rods 304 are respectively connected with fourth gears 306 in a key way, two fourth gears 306 on the same second rotating rod 304 are positioned outside the two third gears 305, two second sliding plates 307 are respectively connected on the three first isolation blocks 213 in a sliding way, on the same first isolation block 213, the two second sliding plates 307 are respectively positioned in adjacent sealing grooves 2132, on the same first isolation block 213, four fourth toothed plates 308 are respectively welded on front and rear portions of the opposite sides of the two second sliding plates 307, on the same first isolation block 213, the four fourth toothed plates 308 are respectively meshed with the adjacent fourth gears 306, the first isolation block 213 and the second isolation block 214 move towards the opposite sides and drive the two fourth toothed plates 308 to move towards the right to squeeze air in the adjacent sealing grooves 2132, the two rubber sealing sleeves are expanded, gaps formed by moving the first isolation block 213 and the second isolation block 214 towards opposite sides are sealed, and the high-vacuum cavity between the first shielding cover 201 and the static end cover plate 106 is prevented from being damaged by external air, so that the whole arc extinguishing chamber 102 cannot be used, and resource waste is caused.
When the bellows 105 is damaged, external gas enters the first shielding case 201 through the bellows 105, the second shielding case 202 moves upwards under the action of atmospheric pressure, the second shielding case 202 drives the transverse plate support 210 to move upwards, the transverse plate support 210 drives the second toothed plate 211 to move upwards, the second toothed plate 211 moves upwards to drive the second gear 212 to rotate anticlockwise in a left view, the second gear 212 drives the worm 209 to rotate anticlockwise, the worm 209 rotates anticlockwise to drive the turbine 207 to rotate clockwise in a front view, the turbine 207 drives the first rotating rod 204 to rotate clockwise, the first rotating rod 204 drives the first gear 205 to rotate clockwise, the first gear 205 rotates clockwise to drive the first toothed plate 206 to move downwards, the first toothed plate 206 moves the second conducting rod 104 downwards, the second conducting rod 104 moves downwards away from the static conducting rod 107 and generates high pressure, and the second conducting rod 202 and the static plate 106 are still in a high vacuum state under the action of high-vacuum insulation mediums, the high-level vacuum state does not completely separate from the second shielding case 202, the high-voltage conducting rod 104 is in a high-vacuum state, the high-voltage arc is prevented from being blown out, and the high-voltage arc is prevented from being blown out by the high-voltage insulating mediums, and the high-voltage arc conductors are in the state, and the high-voltage arc conductors are still broken by the high-pressure conductors, and the high-voltage conductors are in contact with the high-voltage conductors, and the high-voltage conductors are in the vacuum state, and the contact conductors are in the state, and the explosion state, and the personnel are in the state, and the contact state is avoided.
When the movable conducting rod 104 moves downwards to the position that the first isolation block 213 and the second isolation block 214 are not extruded any more, under the action of the two first springs 215, the first isolation block 213 and the second isolation block 214 move towards the opposite sides, when the two rectangular protrusions on the second isolation block 214 move leftwards to contact the two first sliding plates 301, the second isolation block 214 continues to move leftwards and extrude the two first sliding plates 301 to move leftwards, the two first sliding plates 301 move leftwards to extrude the two adjacent second springs 302, the two second springs 302 are subjected to opposite acting forces after extrusion, the two first sliding plates 301 respectively drive the two adjacent third toothed plates 303 to move leftwards, the four third toothed plates 303 respectively drive the adjacent third gears 305 to rotate, the four third gears 305 respectively drive the adjacent second rotating rods 304 to rotate, the two second rotating rods 304 respectively drive the adjacent fourth gears 306 to rotate, the four fourth gears 308 respectively drive the adjacent fourth toothed plates 308 to move rightwards, the two fourth toothed plates 308 to move leftwards, the two adjacent fourth toothed plates 308 to extrude the adjacent rubber plates 308 leftwards, and the two adjacent second toothed plates 2 to extrude the adjacent toothed plates to seal the opposite sides of the sealing sleeve, and the sealing sleeve gasket 102 is prevented from being wasted by the air sealing grooves 106, and the opposite sides of the sealing sleeve gasket is prevented from being damaged, and the air sealing gap is formed between the opposite sides of the sealing gasket is avoided.
When the first insulating block 213 and the second insulating block 214 are completely tightly adhered, the rectangular protrusions on the first insulating block 213 are matched with the second sliding grooves 2141 on the second insulating block 214, the two rectangular protrusions on the second insulating block 214 are matched with the two first sliding grooves 2131 on the first insulating block 213, the adhesion force of the first insulating block 213 and the second insulating block 214 is increased, the first insulating block 213 and the second insulating block 214 which are made of ceramics are prevented from being damaged by the extrusion of the movable conducting rod 104 which is still in an upward movement trend under the action of the spring operating device, and meanwhile, the movable conducting rod 104 is prevented from being still in a communicating state with the static conducting rod 107 through the first insulating block 213 and the second insulating block 214.
When the movable conducting rod 104 is far away from the static conducting rod 107, the vacuum circuit breaker is in an open state, the whole circuit controlled by the vacuum circuit breaker is in a power-off state, and when the movable conducting rod 104 is checked by a worker, the damage of the corrugated pipe 105 can be confirmed by checking the position of the movable conducting rod 104, and the subsequent replacement and maintenance can be performed.
Example 3
On the basis of embodiment 2, as shown in fig. 10, 11 and 12, the device further comprises three guide rod cooling structures, the three guide rod cooling structures are respectively welded on the lower surfaces of the adjacent static end cover plates 106, the guide rod cooling structures are used for cooling heat dissipation of the static conductive rods 107 and the movable conductive rods 104 in an abutting state, the guide rod cooling structures comprise ring fixing frames 401, six ring fixing frames 401 are arranged, two ring fixing frames 401 adjacent in front and back are in a group, three ring fixing frames 401 are respectively welded on the lower surfaces of the adjacent static end cover plates 106, ring sliding frames 402 are respectively and slidably connected on the six ring fixing frames 401, third springs 403 are respectively fixedly connected between the six ring fixing frames 401 and the adjacent ring sliding frames 402, fifth toothed plates 404 are respectively welded on the left and right sides of the upper parts of the six ring sliding frames 402 through connecting blocks, two second u-shaped brackets 405 are welded on the upper parts of the inner walls of the three arc-extinguishing chambers 102, the two second u-shaped brackets 405 in the same arc-extinguishing chamber 102 are symmetrically arranged left and right, in the same arc-extinguishing chamber 102, the opposite sides of the two second u-shaped brackets 405 are respectively and rotatably connected with a third rotating rod 406, the front end and the rear end of each of the six third rotating rods 406 are respectively and fixedly connected with a fifth gear 407, square pipes 408 are respectively embedded on the left side and the right side of the upper parts of the three arc-extinguishing chambers 102, arc-shaped heat dissipation frames 409 are respectively and slidably connected on the six square pipes 408 in a sealing manner, in the same arc-extinguishing chamber 102, the opposite sides of the two arc-shaped heat dissipation frames 409 are respectively arranged in a semicircular arc shape and are used for completely attaching to the contact part of a movable conducting rod 104 and a static conducting rod 107, the arc-shaped heat dissipation frames 409 are arranged in a ceramic manner and are used for preventing cooling liquid from conducting, sixth toothed plates 410 are fixedly connected on the six arc-shaped heat dissipation frames 409, the middle parts of the six third rotating rods 406 are respectively and fixedly connected with sixth gears 411, six sixth toothed plates 410 are respectively meshed with adjacent sixth gears 411, four seventh toothed plates 412 are welded on the upper surfaces of three second shielding cases 202, twelve seventh toothed plates 412 are respectively matched with adjacent fifth gears 407, twelve seventh toothed plates 412 are respectively located on the outer sides of the adjacent fifth toothed plates 404, two annular sliding frames 402 are driven to move upwards by the second shielding cases 202, two arc-shaped heat dissipation frames 409 are driven to move towards opposite sides and are tightly attached, cooling liquid is injected into two square pipes 408 through an external liquid inlet device, and heat dissipation and temperature reduction are carried out on the tightly attached movable conductive rods 104 and static conductive rods 107.
When the switch-on is needed, a worker moves the movable conducting rod 104 upwards through the spring operation device, after the movable conducting rod 104 moves upwards for a certain distance, the second shielding cover 202 is driven to move upwards through the first toothed plate 206, the second shielding cover 202 drives the two annular sliding frames 402 to move upwards, the two annular sliding frames 402 move upwards to respectively extrude the adjacent third springs 403, the two third springs 403 are subjected to extrusion to generate reverse acting force, the two annular sliding frames 402 respectively drive the adjacent two fifth toothed plates 404 to move upwards through the connecting blocks, the four fifth toothed plates 404 move upwards to respectively drive the adjacent fifth gears 407 to rotate, the fifth gears 407 drive the third rotary rods 406 to rotate, the two third rotary rods 406 respectively drive the adjacent sixth gears 411 to rotate, the two sixth gears 411 respectively drive the adjacent sixth toothed plates 410 to move towards opposite sides, when the two adjacent arc-shaped cooling frames 409 move towards opposite sides, the four fifth toothed plates 404 are not in close contact with the sides of the adjacent third toothed plates 402, and the two arc-shaped cooling pipes are continuously injected into the two adjacent conducting rods 104 through the adjacent fifth toothed plates 407, and the two continuous cooling liquid is continuously cooled by the two continuous cooling liquid in contact with the two annular sliding frames 104 when the adjacent annular sliding frames 104 move upwards through the adjacent fifth toothed plates 408, and the two continuous cooling liquid cooling pipes 408 move upwards through the adjacent annular cooling grooves 107.
When the switch is needed to be opened, the operator closes the spring operation device, under the action of the two third springs 403, the two annular sliding frames 402 move downwards, at this time, under the action of the two annular sliding frames 402 and the corrugated pipe 105, the second shielding cover 202 and the movable conducting rod 104 move downwards, until the movable conducting rod 104 does not move downwards any more, the second shielding cover 202 continues to move downwards under the action of the two third springs 403 until the two third springs 403 are reset to the initial state, the two annular sliding frames 402 drive the four fifth toothed plates 404 to move downwards, until the four fifth toothed plates 404 move downwards until the four fifth toothed plates 404 are respectively meshed with the adjacent fifth gears 407, the four fifth toothed plates 404 move downwards drive the adjacent fifth gears 407 to rotate, the fifth gears 407 drive the third rotary rods 406 to rotate, the two third rotary rods 406 respectively drive the adjacent sixth gears 411 to rotate, the two sixth gears 411 respectively drive the adjacent sixth toothed plates 410 to move to the opposite sides, the two sixth toothed plates 410 respectively drive the adjacent arc-shaped shielding frames 409 to move to the opposite sides until the two arc-shaped shielding frames 409 are reset to the initial state, and the two arc-shaped shielding frames reset to the two arc-shaped cooling devices are reset to the initial state, and the two arc-shaped cooling devices are reset to the working staff to the initial state.
In the above process, under the action of the movable conductive rod 104, the isolation mechanism is always in an inactive state.
When the bellows 105 is damaged, external air enters the first shielding case 201 through the bellows 105, the second shielding case 202 moves upwards under the action of atmospheric pressure, the second shielding case 202 moves upwards to drive the four seventh toothed plates 412 to move upwards until the four seventh toothed plates 412 are meshed with the adjacent fifth gears 407, the four seventh toothed plates 412 which move upwards respectively drive the adjacent fifth gears 407 to rotate, the four fifth gears 407 respectively drive the adjacent third rotating rods 406 to rotate, the two third rotating rods 406 respectively drive the adjacent sixth gears 411 to rotate, the two sixth gears 411 rotate respectively drive the adjacent sixth toothed plates 410 to move to the opposite sides, the two sixth toothed plates 410 respectively drive the adjacent arc-shaped heat dissipation frames 409 to move to the opposite sides until the two arc-shaped heat dissipation frames 409 are reset to an initial state, and at this time, the isolating mechanism works until a worker checks the position of the movable conducting rod 104 to detect the bellows 105 damage and perform subsequent replacement.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (8)
1. The utility model provides a vacuum circuit breaker with damaged protect function of bellows, including mechanism case (101), the rigid coupling has spring operating means in mechanism case (101), spring operating means is used for controlling vacuum circuit breaker's floodgate that opens and shuts, front portion demountable installation of mechanism case (101) has three equidistant explosion chamber (102), the inside lower extreme of three explosion chamber (102) all demountable installation has movable end apron (103), all sliding connection has movable conducting rod (104) on three movable end apron (103), three movable conducting rod (104) respectively sliding connection in adjacent explosion chamber (102), the lower extreme of three movable conducting rod (104) all is connected with spring operating means, the upper end of three movable conducting rod (104) all rigid coupling has the movable contact, all demountable installation has bellows (105) on three movable end apron (103) upper surface, the upper end of three bellows (105) all demountable installation in adjacent three movable conducting rod (104) respectively, the inside upper end rigid coupling of three explosion chamber (102) all has static end apron (106), the upper end of three movable conducting rod (104) all rigid coupling has static end apron (107), all static end (107) are static contact, all static contact (107) have static contact, all static contact (107) are static contact. The device comprises a movable end cover plate (106) and is characterized by further comprising three breakage disconnecting mechanisms, wherein the three breakage disconnecting mechanisms are fixedly connected to the upper surfaces of the adjacent movable end cover plates (103) respectively and are used for disconnecting a static conductive rod (107) and a movable conductive rod (104), a vacuum cavity used for arc extinction is arranged between each breakage disconnecting mechanism and each static end cover plate (106), an isolating mechanism is connected to each breakage disconnecting mechanism in a sliding manner and is used for isolating outside air from entering between each breakage disconnecting mechanism and each static end cover plate (106), and outside air drives the breakage disconnecting mechanisms to work so that the movable conductive rods (104) move downwards and the vacuum cavity between each breakage disconnecting mechanism and each static end cover plate (106) is protected by the corresponding isolating mechanism;
the breakage disconnection mechanism comprises first shielding covers (201), the first shielding covers (201) are provided with three, the three first shielding covers (201) are fixedly connected to the upper surfaces of three movable end cover plates (103) respectively, the three first shielding covers (201) are connected with second shielding covers (202) in a sealing sliding manner, the three second shielding covers (202) are connected with adjacent movable conducting rods (104) in a sealing sliding manner respectively, the left sides of the upper surfaces of three corrugated pipes (105) are fixedly connected with first u-shaped brackets (203), the three first u-shaped brackets (203) are all rotationally connected with first rotating rods (204), the front parts of the three first rotating rods (204) are fixedly connected with first gears (205) respectively, the left sides of the upper parts of the three movable conducting rods (104) are fixedly connected with first toothed plates (206), the three first toothed plates (206) are respectively meshed with adjacent first gears (205), the rear parts of the three first rotating rods (204) are fixedly connected with turbines (207), the left sides of the three first u-shaped brackets (203) are fixedly connected with first rotating rods (208), the right sides of the three first rotating rods (208) are fixedly connected with the right side racks (209), the right sides of the three first rotating rods (208) are fixedly connected with the third end cover plates (209), the left parts of the three worms (209) are fixedly connected with second gears (212), the three second toothed plates (211) are respectively matched with the adjacent second gears (212), the left sides of the upper parts of the three second shielding covers (202) are respectively and slidably connected with a disconnecting assembly, and the disconnecting assembly is used for disconnecting the movable conducting rod (104) and the static conducting rod (107).
2. A vacuum interrupter with bellows breakage protection according to claim 1, wherein: the three second shielding cases (202) and the three first u-shaped brackets (203) are made of ceramic materials and are used for preventing conduction and heat dissipation.
3. A vacuum interrupter with bellows breakage protection according to claim 1, wherein: the disconnecting assembly comprises first isolation blocks (213), wherein the first isolation blocks (213) are provided with three first isolation blocks (213) which are respectively and slidably connected to the left sides of the upper parts of the adjacent second shielding cases (202), two first sliding grooves (2131) are formed in the three first isolation blocks (213) in a sliding manner, the two first sliding grooves (2131) in the same first isolation blocks (213) are vertically symmetrical, two sealing grooves (2132) in the same first isolation blocks (213) are vertically symmetrical, the two sealing grooves (2132) in the same first isolation blocks (213) are respectively and slidably connected to the inner sides of the two first sliding grooves (2131), rubber sealing sleeves are fixedly connected in the six sealing grooves (2132), the second isolation blocks (214) are respectively and slidably connected to the right sides of the upper parts of the three second shielding cases (202), the middle parts of the three second isolation blocks (214) are respectively provided with second sliding grooves (2141), the two sealing grooves (2132) are vertically symmetrical, the two sealing grooves (2132) in the same first isolation blocks (213) are vertically symmetrical, and the two second shielding cases (215) are fixedly connected to the first shielding cases (202) and the second shielding cases (215) are fixedly connected to the second shielding cases (215).
4. A vacuum circuit breaker having a bellows breakage protecting function according to claim 3, characterized in that: the three first isolation blocks (213) and the three second isolation blocks (214) are all ceramic and are used for preventing the movable conducting rod (104) and the static conducting rod (107) from being electrified.
5. A vacuum circuit breaker having a bellows breakage protecting function according to claim 3, characterized in that: rectangular protrusions are arranged in the middle of the right side face of each of the three first isolation blocks (213), rectangular protrusions are arranged on the upper portion and the lower portion of the left side face of each of the three second isolation blocks (214), the rectangular protrusions on the three first isolation blocks (213) are respectively matched with the second sliding grooves (2141) on the adjacent second isolation blocks (214), and the two rectangular protrusions on the three second isolation blocks (214) are respectively matched with the two first sliding grooves (2131) on the adjacent first isolation blocks (213) for bonding of the first isolation blocks (213) and the second isolation blocks (214).
6. A vacuum interrupter with bellows breakage protection according to claim 5, wherein: the isolation mechanism comprises a first sliding plate (301), six first sliding plates (301) are arranged, two adjacent first sliding plates (301) are arranged in a group, three groups of first sliding plates (301) are respectively and slidably connected to adjacent first isolation blocks (213), two first sliding plates (301) in a group are respectively positioned in two adjacent first sliding grooves (2131), a second spring (302) is fixedly connected between the six first sliding plates (301) and the adjacent first isolation blocks (213), the six second springs (302) are respectively positioned in the adjacent first sliding grooves (2131), a third sliding plate (303) is fixedly connected to the front and rear parts of the two first sliding plates (301) on the same first isolation blocks (213), two second rotating rods (304) are respectively and symmetrically arranged on the same first isolation blocks (213), two second rotating rods (304) on the same first isolation blocks are respectively and fixedly connected to the front and rear parts of the six second sliding plates (301), two front and rear parts of the six second sliding plates (301) are respectively and fixedly connected to the same toothed plates (304) on the front and rear parts of the same second sliding plates (213), the two second rotating plates (213) are fixedly connected to the same toothed plates (304) on the front and rear parts of the same toothed plates (305), two second sliding plates (307) are slidably connected to the three first isolation blocks (213), the two second sliding plates (307) are respectively located in adjacent sealing grooves (2132) on the same first isolation blocks (213), fourth toothed plates (308) are fixedly connected to the front and rear portions of the opposite sides of the two second sliding plates (307) on the same first isolation blocks (213), and the four fourth toothed plates (308) are respectively meshed with adjacent fourth gears (306).
7. A vacuum circuit breaker having a bellows breakage protecting function according to claim 3, characterized in that: the novel rotary arc extinguishing device comprises a rotary arc extinguishing device, and is characterized by further comprising guide rod cooling structures, wherein three guide rod cooling structures are arranged and fixedly connected to the lower surfaces of the adjacent static end cover plates (106) respectively, the guide rod cooling structures are used for radiating and cooling static conductive rods (107) and dynamic conductive rods (104) in an opposite-gate state, each guide rod cooling structure comprises a circular ring fixing frame (401), six circular ring fixing frames (401) are arranged, two front and rear adjacent circular ring fixing frames (401) are in a group, three groups of circular ring fixing frames (401) are fixedly connected to the lower surfaces of the adjacent static end cover plates (106) respectively, circular ring sliding frames (402) are fixedly connected to the six circular ring fixing frames (401) respectively, a third spring (403) is fixedly connected between each of the six circular ring fixing frames (401) and the adjacent circular ring sliding frames (402), a fifth toothed plate (404) is fixedly connected to the left side and the right side of the upper portion of each circular ring sliding frame (402) through a connecting block, two second u-shaped brackets (405) are fixedly connected to the upper portion of the inner wall of each three arc extinguishing chambers (102), two second u-shaped brackets (405) in the same chamber (102) are fixedly connected to the right side of each circular ring fixing frame (401), two second arc extinguishing chambers (102) are symmetrically arranged on the right side of the same rotary arc extinguishing device, and the third rotary arc extinguishing device (406) is fixedly connected to the right side of the third rotary arc extinguishing device (102) respectively, all sealed sliding connection has arc heat dissipation frame (409) on six square tube (408), in same explosion chamber (102), two arc heat dissipation frame (409) opposite sides are semicircular arc setting, all the rigid coupling has sixth pinion rack (410) on six arc heat dissipation frame (409), the middle part of six third bull stick (406) all rigid coupling has sixth gear (411), six sixth pinion rack (410) respectively with adjacent sixth gear (411) meshing, the upper surface of three second shield (202) all rigid coupling has four seventh pinion rack (412), twelve seventh pinion rack (412) respectively with adjacent fifth gear (407) cooperation, twelve seventh pinion rack (412) are located the outside of adjacent fifth pinion rack (404) respectively.
8. A vacuum interrupter with bellows breakage protection according to claim 7, wherein: the arc-shaped heat dissipation frame (409) is ceramic and is used for preventing cooling liquid from conducting electricity.
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| CN202210439389.4A CN114709108B (en) | 2022-04-25 | 2022-04-25 | Vacuum circuit breaker with corrugated pipe damage protection function |
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| CN202210439389.4A CN114709108B (en) | 2022-04-25 | 2022-04-25 | Vacuum circuit breaker with corrugated pipe damage protection function |
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| CN114709108B true CN114709108B (en) | 2023-08-11 |
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| CN115575027B (en) * | 2022-10-12 | 2023-04-07 | 江苏方天电力技术有限公司 | Power distribution monitoring device based on Internet of things |
| CN116994912B (en) * | 2023-09-25 | 2023-12-22 | 新乡市镇华电力科技有限公司 | Indoor high-voltage vacuum circuit breaker |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8706920D0 (en) * | 1986-04-04 | 1987-04-29 | Westinghouse Electric Corp | Circuit interrupter vacuum bottle |
| CN101075509A (en) * | 2007-06-26 | 2007-11-21 | 西安交通大学 | High-voltage vacuum circuit breaker with mono-fracture voltage to 252kV |
| CN105977093A (en) * | 2016-06-15 | 2016-09-28 | 台州西普电气有限公司 | Vacuum arc-extinguishing chamber of vacuum circuit breaker |
| CN206163402U (en) * | 2016-08-31 | 2017-05-10 | 七七七电气科技有限公司 | Novel vacuum interrupter |
| CN206516558U (en) * | 2016-08-31 | 2017-09-22 | 七七七电气科技有限公司 | Novel vacuum interrupter |
| CN110828227A (en) * | 2019-10-12 | 2020-02-21 | 保定市冀中电力设备有限责任公司 | Full-working-condition intelligent solid-sealed high-voltage alternating-current vacuum circuit breaker |
| CN111276366A (en) * | 2018-12-04 | 2020-06-12 | 湖北久歌电气有限公司 | Breaker arc extinguish chamber with sealing structure |
| CN112366113A (en) * | 2020-11-02 | 2021-02-12 | 西安交通大学 | Protection structure of vacuum arc-extinguishing chamber corrugated pipe under high gas pressure and working method |
| CN113223892A (en) * | 2021-05-25 | 2021-08-06 | 上海电器科学研究所（集团）有限公司 | Quick vacuum arc control device that does not have spring |
| CN214378206U (en) * | 2021-01-27 | 2021-10-08 | 乐清市晨鸿电气有限公司 | Vacuum arc-extinguishing chamber of circuit breaker |
| WO2022007892A1 (en) * | 2020-07-08 | 2022-01-13 | 平高集团有限公司 | Corrugated pipe assembly, vacuum interrupter, and vacuum circuit breaker |
| WO2022048322A1 (en) * | 2020-09-04 | 2022-03-10 | 天津首瑞智能电气有限公司 | Vacuum switch tube for circuit breaker and method for manufacturing outer casing thereof |
-
2022
- 2022-04-25 CN CN202210439389.4A patent/CN114709108B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8706920D0 (en) * | 1986-04-04 | 1987-04-29 | Westinghouse Electric Corp | Circuit interrupter vacuum bottle |
| CN101075509A (en) * | 2007-06-26 | 2007-11-21 | 西安交通大学 | High-voltage vacuum circuit breaker with mono-fracture voltage to 252kV |
| CN105977093A (en) * | 2016-06-15 | 2016-09-28 | 台州西普电气有限公司 | Vacuum arc-extinguishing chamber of vacuum circuit breaker |
| CN206163402U (en) * | 2016-08-31 | 2017-05-10 | 七七七电气科技有限公司 | Novel vacuum interrupter |
| CN206516558U (en) * | 2016-08-31 | 2017-09-22 | 七七七电气科技有限公司 | Novel vacuum interrupter |
| CN111276366A (en) * | 2018-12-04 | 2020-06-12 | 湖北久歌电气有限公司 | Breaker arc extinguish chamber with sealing structure |
| CN110828227A (en) * | 2019-10-12 | 2020-02-21 | 保定市冀中电力设备有限责任公司 | Full-working-condition intelligent solid-sealed high-voltage alternating-current vacuum circuit breaker |
| WO2022007892A1 (en) * | 2020-07-08 | 2022-01-13 | 平高集团有限公司 | Corrugated pipe assembly, vacuum interrupter, and vacuum circuit breaker |
| WO2022048322A1 (en) * | 2020-09-04 | 2022-03-10 | 天津首瑞智能电气有限公司 | Vacuum switch tube for circuit breaker and method for manufacturing outer casing thereof |
| CN112366113A (en) * | 2020-11-02 | 2021-02-12 | 西安交通大学 | Protection structure of vacuum arc-extinguishing chamber corrugated pipe under high gas pressure and working method |
| CN214378206U (en) * | 2021-01-27 | 2021-10-08 | 乐清市晨鸿电气有限公司 | Vacuum arc-extinguishing chamber of circuit breaker |
| CN113223892A (en) * | 2021-05-25 | 2021-08-06 | 上海电器科学研究所（集团）有限公司 | Quick vacuum arc control device that does not have spring |
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