CN116994912B - Indoor high-voltage vacuum circuit breaker - Google Patents
Indoor high-voltage vacuum circuit breaker Download PDFInfo
- Publication number
- CN116994912B CN116994912B CN202311236364.5A CN202311236364A CN116994912B CN 116994912 B CN116994912 B CN 116994912B CN 202311236364 A CN202311236364 A CN 202311236364A CN 116994912 B CN116994912 B CN 116994912B
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- China
- Prior art keywords
- power
- column
- sliding plate
- circuit breaker
- pipe
- Prior art date
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Links
- 239000007789 gas Substances 0.000 claims abstract description 53
- 238000003860 storage Methods 0.000 claims abstract description 42
- 239000011261 inert gas Substances 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 238000003491 array Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004880 explosion Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000003068 static effect Effects 0.000 description 7
- 238000010891 electric arc Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
-
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
- H01H33/82—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas
Landscapes
- Circuit Breakers (AREA)
Abstract
The invention relates to the technical field of circuit breakers, and particularly discloses an indoor high-voltage vacuum circuit breaker which comprises a shell, a power-on device and an arc extinguishing unit, wherein a mounting plate is connected above the shell, a first power-on column is vertically connected on the mounting plate, the power-on device is connected above the shell, a second power-on column corresponding to the first power-on column is connected inside the power-on device, a sealed cavity is formed between the mounting plate and the inside of the power-on device, the arc extinguishing unit comprises a gas storage cover, a sliding plate and a gas outlet pipe, inert gas is stored between the sliding plate and the gas storage cover, and one end of the gas outlet pipe, which is far away from the gas storage cover, is connected with a gas injection head; according to the indoor high-voltage vacuum circuit breaker, under the condition that air leakage occurs in the sealed cavity through the sliding plate, inert gas stored in the gas storage cover is sprayed between the first power-on column and the second power-on column through the gas outlet pipe and the gas jet head, so that electric arcs are prevented from being generated between the first power-on column and the second power-on column when power is off, and high temperature caused by air explosion is prevented.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to an indoor high-voltage vacuum circuit breaker.
Background
The vacuum circuit breaker is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; the arc extinguishing device has the advantages of small volume, light weight, suitability for frequent operation and no maintenance in arc extinguishing, and is more popular in power distribution networks. The vacuum circuit breaker is inevitably damaged, so that the circuit breaker is not provided with vacuum, two circuits generate electric arcs in the disconnection process, and the electric arcs generate high temperature to fatigue contacts.
In the patent with the publication number CN114709108B, a vacuum circuit breaker with a corrugated pipe breakage protection function is disclosed, comprising 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. This vacuum circuit breaker drives the second shield through the bellows and rises, first pinion moves simultaneously and drives first pinion rack and move down, first pinion rack makes movable conducting rod move down, movable conducting rod moves down and keeps away from the static conducting rod and produce high-voltage arc, because movable conducting rod moves down and does not break away from the second shield completely this moment, second shield and static end cover board still are in the high vacuum state, thereby avoid the electric arc that produces when separating between conducting rod and the static end cover board, but, this vacuum circuit breaker only handles the electric arc that produces when separating between conducting rod and the static end cover board after the bellows takes place to damage, and the position of circuit breaker damage also can be in the circuit breaker outside, when the damage appears in the explosion chamber top, and can not solve the electric arc that produces when separating between conducting rod and the static end cover board, therefore, propose an indoor high-voltage vacuum circuit breaker to solve the problem that above-mentioned.
Disclosure of Invention
The invention provides an indoor high-voltage vacuum circuit breaker, which aims to solve the technical problem that in the prior art, only an arc generated during separation between a conducting rod and a static end cover plate is treated after a corrugated pipe is damaged, the damaged position of the circuit breaker can be positioned on the outside of the circuit breaker, and the arc generated during separation between the conducting rod and the static end cover plate cannot be solved when the upper part of an arc extinguishing chamber is damaged.
The indoor high-voltage vacuum circuit breaker of the invention comprises:
the shell, the top of shell is connected with the mounting panel, vertical first circular telegram post of being connected with on the mounting panel;
the power-on device is connected above the shell, a second power-on column corresponding to the first power-on column is connected inside the power-on device, a sealing cavity is formed between the mounting plate and the inside of the power-on device, and the sealing cavity is in a negative pressure state in a use state;
the arc extinguishing unit, the arc extinguishing unit is connected on the mounting panel, the arc extinguishing unit includes:
the gas storage covers are provided with a plurality of gas storage holes and are distributed in an annular array mode, and the gas storage covers are provided with vent holes;
the sliding plate elastically slides in the gas storage cover and is positioned above the vent holes, and inert gas is stored between the sliding plate and the gas storage cover;
the air outlet pipe, the one end that the air outlet pipe is close to the gas storage cover runs through the gas storage cover and sets up on the sliding plate, the one end that the gas storage cover was kept away from to the air outlet pipe is connected with the jet head, when sealed cavity appears leaking, and sealed cavity loses negative pressure state and makes the sliding plate shift up, spouts the inert gas in the gas storage cover from the jet head to first circular telegram post and second circular telegram post.
Preferably, a fixed ring is connected below the sliding plate, the fixed ring is located above the vent hole, and a first spring is connected between the fixed ring and the sliding plate.
Preferably, the outlet duct includes fixed cover, communicating pipe, return bend and stand pipe, fixed cover is connected on the sliding plate, set up the exhaust hole on the fixed cover, the stand pipe is connected on the inner wall upper portion of gas storage cover and is overlapped and establish in fixed cover, communicating pipe runs through the gas storage cover and slides in the stand pipe, the bleeder vent that corresponds with the exhaust hole has been seted up to the lower extreme of communicating pipe, the exit end at the return bend is connected to the air jet.
Preferably, the inside of the fixed sleeve is provided with a stepped hole, the guide pipe is positioned at the upper end of the stepped hole, and the communicating pipe is positioned at the lower end of the stepped hole and is rotationally connected with the fixed sleeve.
Preferably, the periphery of the communicating pipe is provided with a thread groove, and the inner wall of the guide pipe is provided with a bulge corresponding to the thread groove.
Preferably, the upper end of the communicating pipe is sleeved with a torsion spring, one end of the torsion spring is fixedly connected to the communicating pipe, the other end of the torsion spring is fixedly connected to the bent pipe, and a second spring is arranged between the communicating pipe and the bent pipe.
Preferably, the jet head is in a cam shape, a plurality of nozzles are arranged on the jet head, and the nozzles are symmetrically arranged on two sides of the protruding position of the jet head.
Preferably, the below of mounting panel is provided with the separation unit, the separation unit includes the bracing piece, bracing piece fixed connection is in the below of sliding plate, the one end that the sliding plate was kept away from to the bracing piece runs through the mounting panel and extends to the mounting panel below, one side of bracing piece is provided with the second drive tooth of fixed connection on the mounting panel, have on the bracing piece with second drive tooth engaged first rack, have on the first circular telegram post with second drive tooth engaged second rack.
Preferably, the lower extreme of first circular telegram post has screw thread portion, it is connected with the dwang to rotate on the shell, the one end of dwang runs through the shell and extends to in the shell along shell width direction, fixedly connected with screw thread portion engaged first drive tooth on the dwang.
Preferably, a push plate is arranged at the lower end of the shell, and the lower end of the supporting rod penetrates through the shell and is connected with the push plate.
By adopting the technical scheme, the invention has the beneficial effects that:
1. can appear under the circumstances of gas leakage in sealed cavity through the sliding plate, spout the inert gas that stores in the gas storage cover to between first circular telegram post and the second circular telegram post through outlet duct and jet head, avoid leading to the production of electric arc when the outage between first circular telegram post and the second circular telegram post, prevent that the air from exploding and splitting and producing high temperature.
2. Can discharge after compressing inert gas in the gas storage cover through the cooperation between exhaust hole and the bleeder vent, avoid inert gas to slowly discharge and lead to reducing to the effect of arc extinction, wherein, make communicating pipe rotation when can making fixed cover drive the rising of communicating pipe through the screw groove with the arch in the communicating pipe to the position between first circular telegram post and the second circular telegram post of air jet head contact on the communicating pipe drive return bend, better distribute inert gas from between first circular telegram post and the second circular telegram post.
3. The first power-on column can be driven to move downwards to be separated from the second power-on column through the cooperation between the first rack on the supporting rod and the second transmission gear, so that when the sealed cavity is in air leakage, the first power-on column and the second power-on column are separated, and the position of air leakage on the power-on device is convenient to overhaul.
Drawings
Fig. 1 is a schematic structural view of the circuit breaker of the present invention.
Fig. 2 is a schematic sectional view of the circuit breaker of the present invention.
Fig. 3 is a schematic structural view of the arc extinguishing unit of the present invention.
Fig. 4 is a schematic view of the structure of the mounting plate of the present invention.
FIG. 5 is a schematic cross-sectional view of a gas cap according to the present invention.
FIG. 6 is a schematic view of the structure of the outlet pipe of the present invention.
Reference numerals:
1. a housing; 2. electrifying the electric appliance; 3. a mounting plate; 4. an arc extinguishing unit; 11. a first power-on column; 12. a rotating lever; 13. a first drive tooth; 14. a threaded portion; 15. a second rack; 21. sealing the cavity; 22. a second power-on column; 31. a second drive tooth; 32. a support rod; 33. a first rack; 35. a push plate; 41. a gas storage cover; 42. an air outlet pipe; 43. a jet head; 411. a sliding plate; 412. a fixing ring; 413. a first spring; 414. a vent hole; 421. a fixed sleeve; 422. a communicating pipe; 423. bending the pipe; 424. a guide tube; 4211. an exhaust hole; 4221. a torsion spring; 4222. a second spring; 4223. a thread groove; 4224. and (5) ventilation holes.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1 to 3, the indoor high-voltage vacuum circuit breaker provided by the invention comprises a shell 1, wherein an electrifying device 2 is fixedly connected to the upper side of the shell 1, a second electrifying column 22 is fixedly connected to the inside of the electrifying device 2, a mounting plate 3 corresponding to the electrifying device 2 is fixedly connected to the upper side of the shell 1, an arc extinguishing unit 4 is mounted above the mounting plate 3, a sealing cavity 21 is arranged between the upper side of the mounting plate 3 and the electrifying device 2, the sealing cavity 21 is in a negative pressure state in a use state, a first electrifying column 11 corresponding to the second electrifying column 22 is slidingly connected to the middle part of the mounting plate 3, the sealing cavity 21 enables the first electrifying column 11 and the second electrifying column 22 to be disconnected through the linkage of the arc extinguishing unit 4 when leakage occurs, and meanwhile, the arc extinguishing unit 4 generates inert gas to solve an arc generated when the first electrifying column 11 and the second electrifying column 22 are disconnected.
As shown in fig. 2 and 5, the arc extinguishing unit 4 includes a plurality of gas storage hoods 41 fixedly connected to the mounting plate 3, the plurality of gas storage hoods 41 are arranged in an annular array, a sliding plate 411 is elastically and slidably connected to the inside of the gas storage hoods 41, in detail, elastic protrusions are arranged on the circumference of the sliding plate 411, grooves corresponding to the elastic protrusions are formed in the inner wall of the gas storage hoods 41, and the positions of the sliding plate 411 can be limited by matching between the grooves and the elastic protrusions, so that the first springs 413 push the sliding plate 411 to rapidly discharge gas in the gas storage hoods 41. The fixed ring 412 is fixedly connected to the lower portion of the sliding plate 411, the first spring 413 is fixedly connected between the fixed ring 412 and the sliding plate 411, the sliding plate 411 can be supported by the fixed ring 412 and the first spring 413, inert gas such as helium, neon and argon is arranged between the sliding plate 411 and the gas storage cover 41, the gas outlet pipe 42 is arranged on the sliding plate 411, one end of the gas outlet pipe 42, which is far away from the sliding plate 411, penetrates through the gas storage cover 41 and extends to the outside of the gas storage cover 41, the gas outlet pipe 42 is provided with the gas jet head 43 at one end, which is far away from the sliding plate 411, of the gas jet head 43, which corresponds to the junction of the first power-on column 11 and the second power-on column 22, and a vent hole 414 is formed in one end, which is close to the mounting plate 3, of the gas storage cover 41.
In this embodiment, under the condition that the sealed cavity 21 leaks air, the sliding plate 411 can spray the inert gas stored in the gas storage cover 41 to the space between the first power-on column 11 and the second power-on column 22 through the gas outlet pipe 42 and the gas jet head 43, so as to avoid the generation of electric arc between the first power-on column 11 and the second power-on column 22 during power failure and prevent the explosion of air from generating high temperature.
The interior of the electrifying device 2 is in a sealed state, the interior of the sealed cavity 21 is in a negative pressure state, the negative pressure in the sealed cavity 21 pulls the sliding plate 411 to enable the first spring 413 to be stressed and compressed, when the electrifying device 2 is damaged, the pressure in the sealed cavity 21 is converted from negative pressure to positive pressure, at the moment, the sliding plate 411 loses the pulling of the pressure in the sealed cavity 21 through the vent hole 414, the sliding plate 411 is reset by the first spring 413 to enable the sliding plate 411 to move upwards, and gas in the gas storage cover 41 is blown between the first electrifying column 11 and the second electrifying column 22 through the gas outlet pipe 42 and the gas jet head 43, so that an arc generated when the first electrifying column 11 and the second electrifying column 22 are disconnected is avoided.
As shown in fig. 3 and 4, the separation unit is arranged below the mounting plate 3, separation outage can be carried out between the first power-on column 11 and the second power-on column 22 when the air leakage occurs in the power-on device 2, the first power-on column 11 penetrates through the mounting plate 3 and extends to the lower side of the mounting plate 3, the separation unit comprises a supporting rod 32, the supporting rod 32 is fixedly connected to the lower side of the sliding plate 411, one end of the supporting rod 32, far away from the sliding plate 411, penetrates through the mounting plate 3 and extends to the lower side of the mounting plate 3, one side of the supporting rod 32 is provided with a second transmission tooth 31 fixedly connected to the mounting plate 3, the supporting rod 32 is provided with a first rack 33 meshed with the second transmission tooth 31, the diameter of an inner ring of the fixed ring 412 is larger than that of the supporting rod 32, so that the air pressure in the sealing cavity 21 penetrates through the fixed ring 412 and contacts the sliding plate 411, the lower end of the first power-on column 11 is provided with a threaded part 14, one end of the rotating rod 12 penetrates through the housing 1 along the width direction of the housing 1 and extends to the lower side of the housing 1, the rotating rod 12 is fixedly connected to the second transmission tooth 31, the first push plate 21 is in the sealing cavity 35 is in a position of the sealing cavity 21, and the sealing cavity 35 is in a position between the sealing cavity 21 and the sliding plate 21 is required to be slowly moved by the first drive the sliding plate 21 and the first drive tooth 31.
In this embodiment, the first rack 33 on the support rod 32 and the second driving gear 31 are matched to drive the first power-on column 11 to move downwards and separate from the second power-on column 22, so that when the sealed cavity 21 leaks air, the first power-on column 11 and the second power-on column 22 are separated, and the position of the air leakage on the power-on device 2 is convenient to overhaul.
The sliding plate 411 drives the supporting rod 32 to move downwards while ascending, and the first rack 33 on the supporting rod 32 drives the first energizing post 11 to move downwards through the cooperation of the second transmission gear 31 and the second rack 15, so that the separation between the first energizing post 11 and the second energizing post 22 is realized.
Under normal state, the rotating rod 12 is shifted, the rotating rod 12 drives the first energizing column 11 to move downwards through the cooperation of the first transmission gear 13 and the threaded part 14, and the arc phenomenon can not occur when the first energizing column 11 and the second energizing column 22 are separated due to the fact that the sealing cavity 21 is in vacuum under normal state.
As shown in fig. 5 and 6, the air outlet pipe 42 includes a fixing sleeve 421, a communicating pipe 422, a bent pipe 423 and a guiding pipe 424, the fixing sleeve 421 is fixedly connected to the sliding plate 411, an air outlet hole 4211 is formed in the fixing sleeve 421, the guiding pipe 424 is fixed on the top of the inner wall of the air storage cover 41 and is sleeved in the fixing sleeve 421, in detail, a stepped hole is formed in the fixing sleeve 421, and the guiding pipe 424 is located at the upper end of the stepped hole. The communicating pipe 422 runs through the gas storage cover 41 and slides in the guide tube 424, the communicating pipe 422 is located the lower extreme of shoulder hole and rotates with fixed cover 421 to be connected, the bleeder vent 4224 that corresponds with exhaust hole 4211 is seted up to the lower extreme of communicating pipe 422, the inlet end cover of return bend 423 is established in the upper end of communicating pipe 422 and is slided and set up, the upper end cover of communicating pipe 422 is equipped with torsional spring 4221, the one end fixed connection of torsional spring 4221 is on communicating pipe 422, the other end fixed connection of torsional spring 4221 is on return bend 423, be provided with second spring 4222 between return bend 423 and the communicating pipe 422, second spring 4222 makes things convenient for return bend 423 to reciprocate, the periphery of communicating pipe 422 has screw thread groove 4223, set up the arch that corresponds with screw thread groove 4223 on the inner wall of guide tube 424, rotatory when being convenient for communicating pipe 422 moves along the direction of guide tube 424, make exhaust hole 4211 correspond with bleeder vent 4224, the outlet end of return bend 423, the end cover of return bend 43 is equipped with the cam-shaped, a plurality of spouts on the shower nozzle 43, a plurality of spouts are symmetrically arranged in the both sides of shower nozzle 43 protruding position.
In this embodiment, the inert gas in the gas storage cover 41 can be discharged after being compressed through the cooperation between the exhaust hole 4211 and the ventilation hole 4224, so that the effect of arc extinction is reduced due to the slow discharge of the inert gas, wherein the fixing sleeve 421 can drive the communication pipe 422 to ascend through the screw groove 4223 and the protrusions in the communication pipe 422, and simultaneously the communication pipe 422 is rotated, so that the communication pipe 422 drives the air jet head 43 on the elbow 423 to contact the position between the first power-on column 11 and the second power-on column 22, and the inert gas is better emitted from the position between the first power-on column 11 and the second power-on column 22.
When the sliding plate 411 drives the fixed sleeve 421 to rise, the fixed sleeve 421 can drive the communicating pipe 422 to rise, the communicating pipe 422 drives the bent pipe 423 to rotate under the action of the protruding cooperation on the thread groove 4223 and the guide pipe 424, the air jet head 43 on the bent pipe 423 approaches between the first power-on post 11 and the second power-on post 22, when the air jet head 43 contacts with the first power-on post 11 or the second power-on post 22, the communicating pipe 422 continues to rotate, at this moment, the torsion spring 4221 is stressed and compressed, and when the first power-on post 11 and the second power-on post 22 are separated, the torsion spring 4221 releases pressure, so that the air jet head 43 is positioned between the first power-on post 11 and the second power-on post 22 under the action of the second spring 4222, and the air jet head 43 is prevented from directly pushing the second power-on post 22 to contact with the first power-on post 11, thereby causing subsequent electric arcs.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. An indoor high voltage vacuum circuit breaker, comprising:
the device comprises a shell (1), wherein a mounting plate (3) is connected above the shell (1), and a first electrifying column (11) is vertically connected to the mounting plate (3);
the power-on device (2), the power-on device (2) is connected above the shell (1), a second power-on column (22) corresponding to the first power-on column (11) is connected inside the power-on device (2), a sealing cavity (21) is arranged between the mounting plate (3) and the inside of the power-on device (2), and the sealing cavity (21) is in a negative pressure state in a use state;
the arc extinguishing unit (4), arc extinguishing unit (4) is connected on mounting panel (3), arc extinguishing unit (4) include:
the gas storage cover (41) is provided with a plurality of annular arrays, and the gas storage cover (41) is provided with vent holes (414);
the sliding plate (411) elastically slides in the gas storage cover (41) and is positioned above the vent hole (414), and inert gas is stored between the sliding plate (411) and the gas storage cover (41);
the air outlet pipe (42), one end of the air outlet pipe (42) close to the air storage cover (41) penetrates through the air storage cover (41) and is arranged on the sliding plate (411), one end of the air outlet pipe (42) far away from the air storage cover (41) is connected with the air jet head (43), when the sealed cavity (21) leaks, the sealed cavity (21) loses a negative pressure state to enable the sliding plate (411) to move upwards, and inert gas in the air storage cover (41) is jetted from the air jet head (43) to the first power-on column (11) and the second power-on column (22);
the utility model discloses a power-on device for the electric vehicle is characterized in that a separation unit is arranged below the mounting plate (3), the separation unit comprises a supporting rod (32), the supporting rod (32) is fixedly connected below the sliding plate (411), one end of the supporting rod (32) away from the sliding plate (411) penetrates through the mounting plate (3) and extends to the lower side of the mounting plate (3), one side of the supporting rod (32) is provided with a second transmission tooth (31) fixedly connected to the mounting plate (3), the supporting rod (32) is provided with a first rack (33) meshed with the second transmission tooth (31), and the first power-on column (11) is provided with a second rack (15) meshed with the second transmission tooth (31).
2. Indoor high voltage vacuum circuit breaker according to claim 1, characterized in that the sliding plate (411) is connected with a fixed ring (412) below, the fixed ring (412) is located above the vent hole (414), and a first spring (413) is connected between the fixed ring (412) and the sliding plate (411).
3. The indoor high-voltage vacuum circuit breaker according to claim 1, wherein the air outlet pipe (42) comprises a fixed sleeve (421), a communicating pipe (422), an elbow pipe (423) and a guide pipe (424), the fixed sleeve (421) is connected to the sliding plate (411), an exhaust hole (4211) is formed in the fixed sleeve (421), the guide pipe (424) is connected to the upper portion of the inner wall of the air storage cover (41) and is sleeved in the fixed sleeve (421), the communicating pipe (422) penetrates the air storage cover (41) and slides in the guide pipe (424), an air vent (4224) corresponding to the exhaust hole (4211) is formed in the lower end of the communicating pipe (422), and the air jet head (43) is connected to the outlet end of the elbow pipe (423).
4. An indoor high-voltage vacuum circuit breaker according to claim 3, wherein the fixing sleeve (421) is internally provided with a stepped hole, the guide pipe (424) is positioned at the upper end of the stepped hole, and the communicating pipe (422) is positioned at the lower end of the stepped hole and is rotatably connected with the fixing sleeve (421).
5. The indoor high-voltage vacuum circuit breaker as claimed in claim 3, wherein the outer circumference of the communication pipe (422) has a screw groove (4223), and the inner wall of the guide pipe (424) is provided with a protrusion corresponding to the screw groove (4223).
6. An indoor high-voltage vacuum circuit breaker according to claim 3, characterized in that the upper end of the communicating pipe (422) is sleeved with a torsion spring (4221), one end of the torsion spring (4221) is fixedly connected to the communicating pipe (422), the other end of the torsion spring (4221) is fixedly connected to the elbow pipe (423), and a second spring (4222) is arranged between the communicating pipe (422) and the elbow pipe (423).
7. An indoor high-voltage vacuum circuit breaker according to claim 3, characterized in that the jet head (43) is cam-shaped, the jet head (43) is provided with a plurality of nozzles, and the nozzles are symmetrically arranged at two sides of the protruding position of the jet head (43).
8. Indoor high-voltage vacuum circuit breaker according to claim 1, characterized in that the lower end of the first energizing column (11) is provided with a screw thread part (14), the shell (1) is rotatably connected with a rotating rod (12), one end of the rotating rod (12) penetrates through the shell (1) along the width direction of the shell (1) and extends into the shell (1), and the rotating rod (12) is fixedly connected with a first transmission gear (13) meshed with the screw thread part (14).
9. Indoor high-voltage vacuum circuit breaker according to claim 1, characterized in that the lower end of the housing (1) is provided with a push plate (35), the lower end of the support bar (32) penetrating the housing (1) and being connected with the push plate (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311236364.5A CN116994912B (en) | 2023-09-25 | 2023-09-25 | Indoor high-voltage vacuum circuit breaker |
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| CN202311236364.5A CN116994912B (en) | 2023-09-25 | 2023-09-25 | Indoor high-voltage vacuum circuit breaker |
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| CN116994912A CN116994912A (en) | 2023-11-03 |
| CN116994912B true CN116994912B (en) | 2023-12-22 |
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| CN202311236364.5A Active CN116994912B (en) | 2023-09-25 | 2023-09-25 | Indoor high-voltage vacuum circuit breaker |
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|---|---|
| CN116994912A (en) | 2023-11-03 |
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