CN109360766A - Breaker - Google Patents
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- CN109360766A CN109360766A CN201811372446.1A CN201811372446A CN109360766A CN 109360766 A CN109360766 A CN 109360766A CN 201811372446 A CN201811372446 A CN 201811372446A CN 109360766 A CN109360766 A CN 109360766A
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- Prior art keywords
- drainage
- piston
- choked flow
- cylinder body
- rod
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- 230000007246 mechanism Effects 0.000 claims abstract description 126
- 238000007789 sealing Methods 0.000 claims description 47
- 238000013016 damping Methods 0.000 claims description 35
- 230000003068 static effect Effects 0.000 claims description 26
- 239000012212 insulator Substances 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000005404 monopole Effects 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 description 12
- 230000000903 blocking effect Effects 0.000 description 9
- 238000002955 isolation Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 5
- 238000004880 explosion Methods 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000004534 cecum Anatomy 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 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
- 239000011261 inert gas Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 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
- 229920001778 nylon Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- 238000009628 steelmaking Methods 0.000 description 1
- 210000003934 vacuole Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
Abstract
The invention belongs to field of circuit breakers, specifically disclose a kind of breaker that combined floodgate performance is high comprising single-pole switch, the Mono-pole switch include axial sequentially connected vacuum bubbles, insulating cylinder, electromagnetic driver and disappear and play device.This disappears, and to play device include cylinder body, piston mechanism, drainage mechanism and choked flow mechanism.Piston mechanism includes the piston and piston rod for being built in cylinder body.Drainage mechanism is arranged in piston, including drainage spool, the bank bar of drainage spool protrudes from the upper surface of piston and protrudes into rod chamber, end cap suitable for drainage spool shock rod chamber disappears to trigger the drainage of drainage mechanism and plays the driving force for making moving contact reversely bounce that device generates at the end of the stroke；Choked flow mechanism is arranged on piston, and mechanism is connected with drainage, is suitable for that resisting medium is prevented to flow into rod chamber through drainage mechanism, the energy that moving contact reversely bounces after closing a floodgate with absorption；It effectively avoids breaker that closing rebound arcing occurs, improves the combined floodgate performance and safety of breaker.
Description
Technical field
The present invention relates to a kind of breaker more particularly to a kind of breakers that combined floodgate performance is high, belong to field of electrical equipment.
Background technique
Breaker is as a kind of switchgear, for controlling the through and off of middle high-pressure primary circuit, currently to breaker
More stringent requirements are proposed for combined floodgate performance, if closing time is shorter, does not generate arcing, especially combined floodgate arcing.Built in breaker
Vacuum bubbles with arc-suppression function.When combined floodgate, the moving contact of the high-speed motion of vacuum bubbles collides static contact, is closed a floodgate with realizing, but
The moving contact of high-speed motion bounces after an impact, reversely to bounce close to instantaneous velocity when closing a floodgate, leads to moving contact
Far from static contact, closing rebound arcing is usually generated between moving contact and static contact.Arcing ablation, so that the moving contact of vacuum bubbles,
Static contact is easily damaged, and causes the service life of vacuum bubbles shorter, is needed to expend a large amount of human and material resources to safeguard vacuum bubbles, is answered
It is higher with, maintenance cost.In addition, arcing is generated between the moving contact and static contact of vacuum bubbles, for the vacuum filled with arc extinguishing gases
Bubble, also will lead to vacuum bubbles internal temperature and quickly increases, and generates high temperature and pressure and explodes, leads to major accident, influence to match
The safe operation of power grid.
Summary of the invention
The main purpose of the present invention is to provide a kind of breakers, and closing rebound easily occurs to solve prior art breaker
Arcing, vacuum bubbles technical problem easy to damage.
In order to achieve the above object, the present invention provides a kind of breaker, is made of at least one single-pole switch A, the single-stage
Switch A includes vacuum bubbles 100, insulating cylinder 200, electromagnetic driver 300, the movable contact rod 130 and insulating cylinder of the vacuum bubbles 100
200 220 axis connection of upper shaft lever, the driver output shaft 370 of the lower shaft 230 and electromagnetic driver 300 of insulating cylinder 200 it is upper
End axis connection；Its designing points is: further include disappearing to play device 400, this disappear play device 400 include closed cylinder body 410, it is living
Fill in mechanism 420, drainage mechanism 430 and choked flow mechanism 440；Piston mechanism 420 includes 421 He of piston being arranged in cylinder body 410
The lower end of piston rod 422, piston rod 422 is fixed through the 1st end cap 412 and piston 421 sealing of cylinder body 410, piston rod
422 upper end and the lower end axis connection of driver output shaft 370, piston 421 and the sealing of cylinder body 410 cooperate；On piston 421
Damping hole 423 is set, and the inner space of cylinder body 410 is divided into rod chamber and rodless cavity by piston 421；Drainage mechanism 430 is arranged
In piston 421, drainage mechanism 430 includes drainage spool 433, and the bank bar 4332 of drainage spool 433 protrudes from piston 421
Upper surface and protrude into rod chamber, suitable for drainage spool 433 hit the 1st end cap 412 to trigger 430 drainage of drainage mechanism, make to have
Resisting medium in rod cavity is discharged into rodless cavity through drainage mechanism 430；Choked flow mechanism 440 is arranged in piston 421, is located at piston
421 lower end surface side, is connected with drainage mechanism 430, suitable for prevent rodless cavity in resisting medium through drainage mechanism 430 to
Rod chamber drainage.
During application implementation, there are also following optional technical solutions by the present invention.
Optionally, the drainage mechanism 430 is multiple including drainage lumens 431, drainage valve seat 432, drainage spool the 433, the 1st
Position spring 434 and end 435；The middle part setting of end 435 is suitable for the recirculation hole of resisting medium circulation；Drainage lumens 431 are setting
The cavity of underpart opening in piston 421, the axis direction along piston 421 extend；Built in the upper end of drainage lumens 431
Feeler lever hole is arranged in the middle part of drainage valve seat 432, drainage valve seat 432；Drainage spool 433 includes spool portion 4331 and bank bar
4332；The drainage spool 433, the 1st reset spring 434 are successively assemblied in drainage lumens 431, and bank bar 4332 runs through feeler lever hole
Rod chamber is protruded into the upper surface for protruding from piston 421, and the underpart opening sealing of end 435 and drainage lumens 431 is fixed, and the 1st is multiple
Position spring 434 is in compressive state, and spool portion 4331 and the sealing of drainage valve seat 432 cooperate.
Optionally, the choked flow mechanism 440 is multiple including choked flow chamber 441, choked flow valve seat 442, choked flow spool the 443, the 2nd
Position spring 444 and end clamp plate 445；The middle part setting of end clamp plate 445 is suitable for the through-hole of resisting medium circulation；Choked flow chamber 441 is arranged
In the recirculation hole of end 435, positioned at the lower part of end 435, the axis direction along end 435 is extended downwardly；Choked flow valve seat 442
The upper end of choked flow chamber 441 is set；The choked flow spool 443, the 2nd reset spring 444 are successively assemblied in choked flow chamber 441,
The underpart opening of end clamp plate 445 and choked flow chamber 441 is fixed, and the 2nd reset spring 444 is in compressive state, choked flow spool 443 with
The sealing cooperation of choked flow valve seat 442；Choked flow mechanism 440 is suitable for control resisting medium can only be from rod chamber to nothing through drainage mechanism 430
Rod cavity drainage.
Optionally, axis direction of the recirculation hole of the end 435 along the end 435 extends, the choked flow chamber
441, recirculation hole and 435 coaxial line of end cooperate.
Optionally, the cylinder body 410 includes cylinder barrel 411, the 1st end cap 412, the 2nd end cap 413；Cylinder barrel 411 is in cylinder
The upper end of shape, the 1st end cap 412 and cylinder barrel 411, which seals, to be fixed, and the lower end of the 2nd end cap 413 and cylinder barrel 411, which seals, to be fixed.
Optionally, through-hole is set on the 2nd end cap 413, assembly is suitable for injecting into cylinder body 410 in the through-hole
The check valve of resisting medium.
Optionally, the electromagnetic driver 300 includes cylindrical driver cylinder body 310, driver upper end cover
320, driver lower cover 330, iron core 360 and driver output shaft 370, driver cylinder body 310 are interior setting in its cylinder wall
The 1st caulking groove 311 circumferentially surrounded and the 2nd caulking groove 312, the upper end of cylinder body 310, the 2nd caulking groove is arranged in the 1st caulking groove 311
312 are arranged in the lower end of cylinder body 310；The 1st coil 340 is assembled in 1st caulking groove 311, assembles the 2nd coil in the 2nd caulking groove 312
350；Iron core 360 is arranged in cylinder body 310, is set in the outside of driver output shaft 370 and fixation, driver upper end cover 320
It is fixed with the upper end of cylinder body 310, the lower end of driver lower cover 330 and cylinder body 310 is fixed, the upper end of driver output shaft 370
Portion is through driver upper end cover 320 and stretches out, and lower end is through driver lower cover 330 and stretches out.
Optionally, the vacuum bubbles 100 include vacuum chamber 110, moving contact 120, movable contact rod 130, static contact 140
With stationary contact head rod 150, moving contact 120, static contact 140 are positioned opposite in vacuum chamber, and moving contact 120 is under static contact 140
Side；The lower end of stationary contact head rod 150 protrudes into, stationary contact head rod 150 and vacuum chamber fixed with static contact 140 from 110 upper end of vacuum chamber
110 sealings are fixed；The upper end of movable contact rod 130 protrudes into, movable contact rod fixed with moving contact 120 from 110 lower end of vacuum chamber
130 and vacuum chamber 110 sealing with merge slidable fit.
Optionally, the insulating cylinder 200 includes insulator 210, upper shaft lever 220 and lower shaft 230；Insulator 210
It is in the form of a column, side setting is suitable for increasing multiple full skirts of insulation creep distance；The upper end of upper shaft lever 220 and insulator 210 is solid
Fixed, the lower end of lower shaft 230 and insulator 210 is fixed.
Optionally, the quantity of the single-pole switch is 2,3 or multiple.
Breaker of the invention is made of at least one single-pole switch, which includes vacuum bubbles, insulating cylinder, electromagnetism
Driver and disappears and play device.The movable contact rod of vacuum bubbles and the upper shaft lever axis connection of insulating cylinder, the lower shaft and electromagnetism of insulating cylinder
The upper end axis connection of the output shaft of driver.Disappearing, to play device include closed cylinder body, piston mechanism, drainage mechanism and choked flow machine
Structure.Piston mechanism includes setting in the intracorporal piston of cylinder and piston rod, 1st end cap and work of the lower end of piston rod through cylinder body
Plug sealing is fixed, the upper end of piston rod and the lower end axis connection of driver output shaft, and piston and cylinder body sealing cooperate.Piston
The inner space of cylinder body is divided into rod chamber and rodless cavity by upper setting damping hole, piston.Drainage mechanism is arranged in piston, row
Flowing mechanism includes drainage spool, and the bank bar of drainage spool protrudes from the upper surface of piston and protrudes into rod chamber, is suitable for outflow valve
Core hits the 1st end cap to trigger the drainage of drainage mechanism, is discharged into the resisting medium of storage high-energy in rod chamber through drainage mechanism
Rodless cavity eliminates the urging force for promoting moving contact reversely to bounce caused by resisting medium at the end of the stroke.The setting of choked flow mechanism
In piston, positioned at the lower end surface side of piston, mechanism is connected with drainage, and after combined floodgate, the moving contact of spring drives piston reverses direction
Movement, piston is from stroke end counter motion, and drainage mechanism is not capable of resetting blocking circulation, but choked flow mechanism is reset and blocks stream
It is logical, prevent resisting medium in rodless cavity through drainage mechanism to rod chamber drainage, the resisting medium in rodless cavity can only be through piston
On damping hole flow into rod chamber, generate damping force, absorb the energy that reversely bounces of moving contact after closing a floodgate, further suppress contact
Reversed spring.
When breaker closing, electromagnetic driver drives to disappear and plays the piston of device and move to rod chamber direction, in rod chamber
Resisting medium is compressed by acting, is flowed into rodless cavity through the damping hole on piston, is generated damping force, is absorbed moving contact of breaker and is being closed
Portion of energy before lock reduces combined floodgate instantaneous velocity, to inhibit the closing rebound of moving contact of breaker；Disappear and plays the piston of device and exist
When stroke latter end, the bank bar of drainage spool hits the end cap of rod chamber, and drainage mechanism is triggered drainage, and storage is high in rod chamber
The resisting medium of energy flows into drainage mechanism, and the resisting medium for flowing into drainage mechanism squeezes the choked flow spool of choked flow mechanism, choked flow
Far from choked flow valve seat, choked flow mechanism is triggered drainage spool, then at the end of the stroke in rod chamber storage high-energy resisting medium
Through drainage mechanism, choked flow mechanism drainage to rodless cavity, disappears and promote caused by resisting medium when playing device at the end of the stroke
The urging force that moving contact reversely bounces further suppresses moving contact and reversely bounces；After breaker closing, moving contact will close a floodgate
Spring, drives to disappear and plays the piston of device and move from stroke end opposite direction, under the 1st action of reset spring, drainage mechanism 430
Bank bar 4332 protrudes from the upper surface of piston 421, and drainage mechanism cannot reset blocking circulation immediately, makees in the 2nd reset spring
Under, choked flow mechanism resets immediately, blocks circulation, and the resisting medium in rodless cavity can only be flowed into through the damping hole on piston bar
Chamber generates damping force, absorbs the energy that moving contact reversely bounces after closing a floodgate, and further moving contact is inhibited reversely to bounce, thus
It avoids that closing rebound arcing occurs between moving contact of breaker and static contact when closing a floodgate, improves the combined floodgate performance and safety of breaker
Property.
Compared with prior art, device is played the invention has the benefit that disappearing built in breaker, when breaker closing, disappeared
It plays portion of energy of the device absorption moving contact of breaker before combined floodgate and reduces combined floodgate instantaneous velocity, disappearing plays device at stroke end
Urging force that the promotions moving contact that end generates reversely bounces, absorb close a floodgate after the energy that reversely bounces of moving contact, to inhibit breaking
The reversed spring of device moving contact extends the breaker service life to avoid the closing rebound arcing occurred between moving contact and static contact,
And avoid breaker that explosion caused by arcing occurs, be conducive to the combined floodgate performance and safety that improve breaker.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the schematic diagram of one of embodiment breaker.
Fig. 2 is the schematic diagram of electromagnetic driver.
Fig. 3 is the schematic diagram for disappearing and playing device.
Fig. 4 is the decomposition diagram of drainage mechanism, choked flow mechanism.
Wherein, 100- vacuum bubbles, 110- vacuum chamber, 120- moving contact, 130- movable contact rod, 140- static contact, 150- are quiet
Contact stem, 200- insulating cylinder, 210- insulator, 220- upper shaft lever, shaft under 230-, 300- electromagnetic driver, 310- driver
Cylinder body, the 1st caulking groove of 311-, the 2nd caulking groove of 312-, 313- permanent magnet, 320- driver upper end cover, 330- driver lower cover,
The 1st coil of 340-, the 2nd coil of 350-, 360- iron core, 370- driver output shaft, 400-, which disappears, plays device, 410- cylinder body, 411-
Cylinder barrel, the 1st end cap of 412-, the 2nd end cap of 413-, 414- shaft pressuring plate, the 1st sealing ring of 415-, the 2nd sealing ring of 416-, 420- piston
Mechanism, 421- piston, 422- piston rod, 423- damping hole, the 3rd sealing ring of 424-, the 4th sealing ring of 425-, 430- drainage mechanism,
431- drainage lumens, 432- drainage valve seat, 433- drainage spool, 4331- spool portion, 4332- bank bar, the 1st reset spring of 434-,
The end 435-, 440- choked flow mechanism, 441- choked flow chamber, 442- choked flow valve seat, 443- choked flow spool, the 2nd reset spring of 444-,
445- end clamp plate.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.Related directionality instruction in the embodiment of the present invention (such as upper and lower, left and right,
It is forward and backward etc.) it is only used for the relative positional relationship explained under a certain particular pose (as shown in the picture) between each component, movement feelings
Condition etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
As stated in the background art, when prior art breaker is closed a floodgate by operation, it occur frequently that closing rebound, causes breaker
Closing rebound arcing is generated between the moving contacts of vacuum bubbles, static contact, arcing ablation causes vacuum bubbles moving contact, static contact easily to be damaged
It is bad, shorten the service life of vacuum bubbles, during routine use, needs to expend a large amount of human and material resources to safeguard breaker, answer
It is higher with maintenance cost.In addition, arcing is generated between the moving contact and static contact of vacuum bubbles, for the vacuum filled with arc extinguishing gases
Bubble, vacuum bubbles internal temperature quickly increase, and generation high temperature and pressure will will lead to vacuum bubbles and explode, and lead to major accident, shadow
Ring electric power netting safe running.
Inventor further study show that, breaker internally provided with vacuum be soaked raw closing rebound arcing the main reason for be,
When between breaker conjunction, the speed of vacuum bubbles moving contact is very high, and energy is very big, is known by momentum theorem, and moving contact hits stationary contact
Reversed spring is generated when head, reversed speed of bouncing is larger, and spring stroke is larger, in order to reduce or even moving contact of breaker be avoided to produce
Raw closing rebound need to then consume the portion of energy of moving contact when closing a floodgate, and to reduce the energy of its moment of closing a floodgate, reduce vacuum
The energy of switch on of moving contact spring is steeped, and absorbs the energy reversely to bounce after switch on of moving contact, inhibits moving contact of breaker
Reversed spring, to avoid breaker that closing rebound arcing occurs.
Based on the studies above, inventor proposes a kind of to play the disconnected of device configured with disappearing after various experimental analyses
Road device when the breaker closing, disappears and plays the portion of energy that device absorbs vacuum bubbles moving contact, reduce the instantaneous speed of switch on of moving contact
Degree, reduces the energy of switch on of moving contact spring, and absorbs the energy reversely to bounce after switch on of moving contact, inhibits moving contact of breaker
Closing rebound occurs, avoids vacuum bubbles that closing rebound arcing occurs, extends vacuum bubbles service life, and avoid breaker
Arcing explosion.
As one embodiment of the present invention, proposing to disappear built in one kind plays the breaker of device, and as shown in Fig. 1, this is disconnected
Road device includes pedestal, three single-pole switch A, current transformer, voltage transformer and controller.Single-pole switch A is along the vertical direction
Upright arrangement.Three single-pole switch A are equidistantly arranged in "-" type, are assembled and are fixed with pedestal.The 1st is arranged on single-pole switch A
Binding post 160 and the 2nd binding post 170.Shown in the dotted box portion of single-pole switch A as shown in figure 1.Mono-pole switch A includes vacuum bubbles
100, insulating cylinder 200, electromagnetic driver 300 and disappear and play device 400.Vacuum bubbles 100, insulating cylinder 200, electromagnetic driver 300
It plays device 400 with disappearing successively axial restraint connects, and coaxial line cooperates, and arranges along the vertical direction, as shown in Figure 1, i.e. along vertical
Direction is uprightly arranged.The one end of 1st binding post 160 and the stationary contact head rod electrical connection of vacuum bubbles 100, the 2nd binding post 170
The electrical connection of the movable contact rod of one end and vacuum bubbles 100.Above-mentioned vacuum bubbles 100, insulating cylinder 200 are arranged on by insulating materials
In manufactured insulated column, to realize electrical isolation isolation, safety is improved.The other end of 1st binding post 160 is through insulated column
Side wall reaches outside, and the other end of the 2nd binding post 170 reaches outside through the side wall of insulated column.It is 1st binding post 160, true
Vacuole 100, the 2nd binding post 170, insulating cylinder 200, insulated column are arranged on the upper end of pedestal.Electromagnetic driver 300, disappear bullet
Device 400 is arranged on the lower end of pedestal.Above-mentioned insulating materials is epoxy resin, can also be replaced by nylon or PT material
Generation, it is therefore preferable to epoxy resin.Current transformer is used to detect the load current of single-pole switch A, each single-pole switch A configuration one
Branch current transformer.Current transformer can be sleeved on the 2nd binding post 170, and be fixed with pedestal.Voltage transformer is for examining
Survey the voltage of single-pole switch A.2nd binding post 170 of voltage transformer and each single-pole switch A is electrically connected.Built in controller
Microprocessor, filter circuit and divide-shut brake control circuit.Divide-shut brake control circuit is electrically connected through filter circuit with microprocessor.Divide-shut brake
Control circuit is electrically connected with electromagnetic driver 300, is respectively used to manipulate each single-pole switch A progress closing operation and separating brake behaviour
Make.Current transformer, voltage transformer pass through filter circuit respectively and are electrically connected with microprocessor.
The movable contact rod 130 of vacuum bubbles 100 and 220 axis connection of upper shaft lever of insulating cylinder 200, the lower shaft of insulating cylinder 200
230 and electromagnetic driver 300 driver output shaft 370 upper end axis connection.This disappear play device 400 include closed cylinder body
410, piston mechanism 420, drainage mechanism 430 and choked flow mechanism 440.Piston mechanism 420 includes the work being arranged in cylinder body 410
Cylinder body is protruded into through the through-hole at 412 middle part of the 1st end cap of cylinder body 410 in plug 421 and piston rod 422, the lower end of piston rod 422
It in 410, and mutually assembles and fixes with the through-hole at 421 middle part of piston, and piston rod 422 and the through-hole sealing at 421 middle part of piston are matched
It closes, it will be appreciated that fixed for sealing.The upper end of piston rod 422 and the lower end axis connection of driver output shaft 370 and fixation, altogether
Axis cooperation.Piston 421 and the sealing of cylinder body 410 cooperate.Damping hole 423 is set on piston 421, and piston 421 is by cylinder body 410
Inner space is divided into rod chamber and rodless cavity.Drainage mechanism 430 is arranged in piston 421, and drainage mechanism 430 includes outflow valve
The bank bar 4332 of core 433, drainage spool 433 protrudes from the upper surface of piston 421, and protrudes into rod chamber, is suitable for drainage spool
433 hit the 1st end cap 412 to trigger 430 drainage of drainage mechanism, are discharged into the resisting medium in rod chamber through drainage mechanism 430
Rodless cavity eliminates the urging force for promoting moving contact reversely to bounce caused by resisting medium at the end of the stroke, to inhibit moving contact
Closing rebound occurs.Choked flow mechanism 440 is arranged in piston 421, positioned at the lower end surface side of piston 421, with drainage mechanism 430
It is connected, after breaker closing, the moving contact of spring drives piston reverses direction movement, and piston is from stroke end counter motion, drainage
Mechanism cannot reset blocking circulation immediately, but choked flow mechanism is immediately reset blocking circulation, suitable for preventing the damping in rodless cavity
Medium is through drainage mechanism 430 to rod chamber drainage, then the resisting medium in rodless cavity can only flow into through the damping hole on piston and have
Rod cavity generates damping force, absorbs the energy that moving contact reversely bounces after closing a floodgate, further suppresses contact and reversely bounce.
When breaker closing, electromagnetic driver drives to disappear and plays the piston of device and move to rod chamber direction, in rod chamber
Resisting medium is compressed by acting, is flowed into rodless cavity through the damping hole on piston, is generated damping force, is absorbed moving contact of breaker and is being closed
Portion of energy before lock reduces combined floodgate instantaneous velocity, to inhibit moving contact of breaker closing rebound；Disappear and plays the piston of device and be expert at
When journey latter end, the bank bar of drainage spool hits the end cap of rod chamber, and drainage mechanism is triggered drainage, stores high energy in rod chamber
The resisting medium of amount flows into drainage mechanism, and the resisting medium for flowing into drainage mechanism squeezes the choked flow spool of choked flow mechanism, resistance valve
Far from choked flow valve seat, choked flow mechanism is triggered drainage core, then at the end of the stroke in rod chamber storage high-energy resisting medium warp
Drainage mechanism, choked flow mechanism drainage to rodless cavity, disappear play device at the end of the stroke (i.e. terminal) when resisting medium produced by
The urging force that reversely bounces of promotion moving contact, further suppress switch on of moving contact and reversely bounce；After breaker closing, moving contact
Closing rebound will occur, drive the piston for playing device that disappears from the movement of stroke end opposite direction, the bank bar of drainage mechanism protrudes from
The upper surface of piston cannot then reset blocking circulation immediately, but under the 2nd action of reset spring, choked flow mechanism resets immediately, resistance
Cutout is logical, and the resisting medium in rodless cavity can only flow into rod chamber through the damping hole on piston, generates damping force, absorbs after closing a floodgate
The energy that moving contact reversely bounces further inhibits moving contact reversely to bounce, to avoid moving contact of breaker and static contact
Between close a floodgate when occur closing rebound arcing, improve the combined floodgate performance and safety of breaker.
Compared with prior art, above embodiment achieves beneficial technical progress: disappear built in breaker and plays device,
When breaker closing, the portion of energy reduction combined floodgate instantaneous velocity played device absorption moving contact of breaker before combined floodgate that disappears is eliminated
Disappear and plays urging force that the promotion moving contact that device generates at the end of the stroke reversely bounces, absorbs what moving contact after closing a floodgate reversely bounced
Energy is bounced with inhibiting moving contact of breaker to close a floodgate reversely, so that the closing rebound occurred between moving contact and static contact be avoided to fire
Arc extends the breaker service life, and avoids breaker that explosion caused by arcing occurs, and is conducive to the combined floodgate performance for improving breaker
And safety.
Wherein, above-mentioned vacuum bubbles 100, as shown in Figure 1, including vacuum chamber 110, moving contact 120, movable contact rod 130, quiet
Contact 140 and stationary contact head rod 150.Vacuum chamber 110 is arranged along the vertical direction.Moving contact 120, static contact 140 are arranged on vacuum
In chamber 110, moving contact 120 and static contact 140 are preferably arranged in parallel, moving contact 120 is located at static contact in positioned opposite
140 lower section.Upper through-hole is arranged in the upper end of vacuum chamber 110, and lower end is provided with lower through-hole.The lower end of stationary contact head rod 150 is from true
The upper through-hole of 110 upper end of cavity is extend into vacuum chamber 110, and the lower end of stationary contact head rod 150 and static contact 140 are fixed, quiet
The sealing cooperation of the upper through-hole of contact stem 150 and vacuum chamber 110, and it is fixed, i.e. and stationary contact head rod 150 and the sealing of vacuum chamber 110 is solid
It is fixed.The upper end of movable contact rod 130 is protruded into from the lower through-hole of 110 lower end of vacuum chamber and is extend into vacuum chamber 110, movable contact rod
130 upper end and moving contact 120 are fixed, and the lower through-hole sealing of movable contact rod 130 and vacuum chamber 110, which is matched, merges slidable fit,
Be suitable for movable contact rod 130 can move up and down relative to vacuum chamber 110, and keep sealing state.Such as realized using bellows
Sealing, bellows-sheathed are mounted in the outside of movable contact rod 130, through the lower through-hole of vacuum chamber 110, the lower end of bellows and vacuum
The lower through-hole of 110 lower end of chamber is fixed, and seals cooperation, it will be appreciated that is fixed for sealing；The upper end of bellows and movable contact rod 130
Sealing is fixed with merging.
Wherein, above-mentioned insulating cylinder 200, as shown in Figure 1, including insulator 210, upper shaft lever 220 and lower shaft 230.Absolutely
Edge body 210 is cylindrical, is prepared by insulating ceramics, is such as prepared using aluminium oxide ceramics.210 lateral surface of insulator is arranged along the side
Face circumferentially around multiple full skirts, be suitable for increase insulation creep distance, enhancing electrical isolation isolation effect.Upper shaft lever 220 and lower shaft
230 to can be used steel standby, and such as stainless steel, insulating ceramics preparation, such as aluminium oxide ceramics can also be used.As a kind of selection, upper axis
Bar 220 is stainless steel making, and lower shaft 230 is prepared by insulating ceramics, to enhance electrical isolation isolation effect.Under upper shaft lever 220
End and the upper end of insulator 210 are fixed, and the upper end of lower shaft 230 and the lower end of insulator 210 are fixed.Upper shaft lever
220, insulator 210, the cooperation of 230 coaxial line of lower shaft.Under the electrical isolation buffer action of insulator 210,220 He of upper shaft lever
Electrical isolation isolation is realized between lower shaft 230.The lower end of movable contact rod 130 is fixedly connected with the upper end of upper shaft lever 220, coaxial
Line cooperation.
Wherein, above-mentioned electromagnetic driver 300, as shown in Fig. 2, including cylindrical driver cylinder body 310, driving
Device upper end cover 320, driver lower cover 330, permanent magnet 313, iron core 360 and driver output shaft 370.Driver cylinder body 310
It is cylindrical, upper and lower ends opening.1st caulking groove 311 and the 2nd caulking groove 312 built in driver cylinder body 310.1st caulking groove 311 and the 2nd
Caulking groove 312 is located on the inside of the wall of driver cylinder body 310, circumferentially surrounds respectively；The upper of cylinder body 310 is arranged in 1st caulking groove 311
The lower end of cylinder body 310 is arranged in end, the 2nd caulking groove 312.The 1st coil 340, the 1st coil 340 are assembled in 1st caulking groove 311
It is fixed with the 1st caulking groove 311, it is suitable for driving breaker closing；Assemble the 2nd coil 350 in 2nd caulking groove 312, the 2nd coil 350 and the
2 caulking grooves 312 are fixed, are suitable for driving breaker open operation.Permanent magnet 313 is fixed on the inner wall of driver cylinder body 310, is located at driving
The middle region of device cylinder body 310, i.e., between the 1st coil 340 and the 2nd coil 350, along the week of 310 inner wall of driver cylinder body
To arrangement.Iron core 360 is arranged in cylinder body 310, and iron core 360 is set in the outside of driver output shaft 370 and fixation, is located at and drives
The middle region of dynamic device output shaft 370.Iron core 360 is located in circumferentially disposed permanent magnet 313, coaxial line cooperation.Driver upper end
The upper end of lid 320 and cylinder body 310 is fixed, through-hole of the upper end of driver output shaft 370 in the middle part of driver upper end cover 320
And it stretches out；The lower end of driver lower cover 330 and cylinder body 310 is fixed, and the lower end of driver output shaft 370 is under driver
Through-hole and stretching in the middle part of end cap 330.The lower end of lower shaft 230 and the upper end of driver output shaft 370 are fixed, further
The cooperation of ground coaxial line.
Wherein, above-mentioned cylinder body 410, as shown in Figure 1, Figure 3, including cylindrical cylinder barrel 411, the 1st end cap 412 and
2 end caps 413.The upper and lower ends of cylinder barrel 411 are open, the 1st end cap 412 lid close cylinder barrel 411 upper end opening and by one at
Type mode realizes that sealing is fixed.2nd end cap 413 lid closes lower ending opening and fixation, the 2nd end cap 413 and cylinder barrel in cylinder barrel 411
Sealing is realized by the 1st sealing ring 415 between 411.Piston mechanism 420 includes piston 421 and piston rod 422.The setting of piston 421 exists
The inside of cylinder body 410, the one end of piston rod 422 protrude into the inside of cylinder body 410 through the through-hole at 412 middle part of the 1st end cap, and
It is mutually fixed with piston 421, sealing is realized by the 3rd sealing ring 424 between 421 middle through-hole of piston rod 422 and piston；Piston rod
Sealing is realized by the 2nd sealing ring 416 between 422 and 412 middle through-hole of the 1st end cap, shaft pressuring plate 414 is set in piston rod 422, and
It is fixed with the 1st end cap 412, for squeezing the 2nd sealing ring 416 of limit, it is ensured that good sealing effect.Driver output shaft
370 lower end is fixedly connected with the upper end of piston rod 422, and coaxial line cooperates.In the side of piston 421 and cylinder barrel 411
Sealing is realized by the 4th sealing ring 425 between wall surface.The inner space of cylinder body 410 is divided into having of being located above by piston 421
Rod cavity and underlying rodless cavity, as shown in Figure 3.Resisting medium is filled in cylinder body 410, resisting medium is preferably nitrogen,
It is also possible to other inert gases such as helium, neon, prevents the oxidation of sealing element, prolong the service life.Pressure is filled in cylinder body 410
Power is greater than the high pressure nitrogen of a standard atmospheric pressure, and the pressure of high pressure nitrogen is preferably 2 standard atmospheric pressures.Quilt on piston 421
Damping hole 423 is set, flows between rod chamber and rodless cavity suitable for resisting medium, is stored with discharging resisting medium by compression
Energy, generate damping force, absorb the energy of moving contact of breaker.423 area of damping hole is the 0.6- of the area of piston 421
1.3%, preferably 0.75%, the effect for absorbing vacuum bubbles moving contact energy to inhibit switch on of moving contact to bounce is preferable.Described 2nd
Through-hole is set on end cap 413, the check valve that assembly is connected to from outside to inside, prevents from inside to outside in the through-hole.The design of check valve
Facilitate and be filled with resisting medium into cylinder body 410, while preventing resisting medium from leaking.It is convenient to inject damping into cylinder body 410
Medium.It should be noted that resisting medium can also select damping oil, and when selecting damping oil as resisting medium, damping hole
423 areas are larger, be piston area 2-8%, preferably 4.8%.
Wherein, above-mentioned drainage mechanism 430, as shown in Figure 3, Figure 4, including drainage lumens 431, drainage valve seat 432, outflow valve
Core 433, the 1st reset spring 434 and end 435.The middle part setting of end 435 is suitable for the recirculation hole of resisting medium circulation.As
A kind of selection, axis direction of the recirculation hole of end 435 along the end 435 extend.Drainage lumens 431 are arranged in piston 421,
As shown in figure 4, the axis direction along piston 421 extends, optional cross for the cavity for the underpart opening being arranged in piston 421
Section is circular cavity.The inner end of drainage lumens 13 is arranged in drainage valve seat 432, that is, is located at the cecum portion of rod chamber side, such as
The upper end of drainage lumens 431 shown in Fig. 4.The through-hole of the middle part setting connection rod chamber of drainage valve seat 432, is suitable for drainage lumens
431 are connected to rod chamber, which is referred to as feeler lever hole.The cross-sectional area in feeler lever hole is less than the cross section of drainage lumens 431
Product.As a kind of selection, it in order to machine, and is circle that drainage lumens 431, drainage valve seat 432 and feeler lever hole coaxial line, which cooperate,
Columnar vestibule.Drainage spool 433 includes spool portion 4331 and bank bar 4332, and spool portion 4331 and drainage valve seat 432 seal
Cooperation.As a kind of selection, spool portion 4331 and 4332 coaxial line of bank bar cooperation, with drainage lumens 431, drainage valve seat 432
And feeler lever hole is adapted.Drainage spool 433 is packed into drainage lumens 431, and the bank bar 4332 of drainage spool 433 runs through drainage valve seat
432 feeler lever hole, protrudes from the upper surface of piston 421, protrudes into the rod chamber of cylinder barrel 411, is suitable for bank bar 4332 and hits the 1st
End cap 412 makes drainage spool 433 far from drainage valve seat 432, to trigger 430 drainage of drainage mechanism, i.e., negotiable in resisting medium
State.The number of altitude that bank bar 4332 protrudes from 421 upper surface of piston is H0.The 1st reset spring 434 is packed into again and is arranged
Chamber 431 is flowed, the underpart opening sealing of end 435 and drainage lumens 431 is fixed, positioned at the lower end of piston 421.I.e. above-mentioned row
Flow valve core 433, the 1st reset spring 434, end 435 successively with drainage lumens 431 assemble, drainage valve seat 432, drainage spool 433,
1st reset spring, end 435 successively fit, and the 1st reset spring is in compressive state, drainage valve seat 432 and drainage spool
433 sealing cooperations, i.e., drainage mechanism 430, which is in, blocks circulation status.When breaker closing, disappears and play the piston 421 of device to having
The movement of rod cavity direction, bank bar 4332 hit the 1st end cap 412, and drainage spool 433 is transported to the direction far from drainage valve seat 432
Dynamic, i.e. drainage mechanism 430 is triggered drainage, and resisting medium is flowed through drainage mechanism 430 from rod chamber to rodless cavity, in rod chamber
Resisting medium is released in the energy that its end of travel is stored, and elimination drives piston to make heterodromous drive from its end of travel
Power, it is advantageous to inhibit moving contact of breaker that closing rebound occurs, closing rebound arcing occurs to avoid breaker.In drainage mechanism
430 be triggered drainage when, for the ease of resisting medium circulation, the lateral surface of drainage spool 433 is set to be prolonged along its axis direction
The drainage groove stretched.
When piston 421 is from its end of travel (terminal when closing a floodgate) counter motion (as bounced after closing a floodgate), the 1st
Under the action of reset spring 434, since the bank bar 4332 of drainage mechanism 430 protrudes from the upper surface of piston 421, in bank bar
During 4332 top is in contact with the 1st end cap 412, drainage spool 433 cannot reset immediately, then drainage mechanism 430 still locates
Rod chamber mainly is flowed into through drainage mechanism 43 in the resisting medium in the state for the drainage that is triggered, rodless cavity, damping cannot be generated
Power, and the energy that moving contact reversely bounces cannot be absorbed, the reversed spring after cannot inhibiting switch on of moving contact not can avoid combined floodgate
The generation for arcing of bouncing.
Wherein, above-mentioned choked flow mechanism 440, as shown in Figure 3, Figure 4, including choked flow chamber 441, choked flow valve seat 442, resistance valve
Core 443, the 2nd reset spring 444 and end clamp plate 445.The middle part setting of end clamp plate 445 is suitable for the through-hole of resisting medium circulation.Resistance
Stream chamber 441 is arranged in the recirculation hole of end 435, and positioned at the lower end of end 435, the axis direction along end 435 is to downward
It stretches, underpart opening.Choked flow chamber 441, recirculation hole and 435 coaxial line of end cooperate.Choked flow valve seat 442 is arranged in choked flow chamber 441
Interior, positioned at the upper end of choked flow chamber 441, the recirculation hole positioned at 442 upper end of choked flow valve seat in end 435 is referred to as valve seat
Hole, choked flow spool 443 and the sealing of choked flow valve seat 442 cooperate, for the ease of machining, above-mentioned choked flow chamber 441, choked flow valve seat
442 and recirculation hole coaxial line cooperation, it is circular structure that choked flow chamber 441, recirculation hole, which select its cross section,.Above-mentioned choked flow chamber
441 diameter is greater than the diameter of recirculation hole, in order to which choked flow chamber 441 and choked flow valve seat 442 are arranged in recirculation hole.Choked flow spool
443 seal cooperation with 442 phase of choked flow valve seat.Above-mentioned choked flow spool 443, the 2nd reset spring 444 are successively assemblied in choked flow chamber
In 441, end clamp plate 445 is fixed on the underpart opening of choked flow chamber 441, and seals cooperation；2nd reset spring 444 is in compression
State, choked flow spool 443 and the sealing of choked flow valve seat 442 cooperate, and choked flow mechanism 440 is in the state for blocking circulation, are suitable for preventing
Resisting medium in rodless cavity through drainage mechanism 430 to rod chamber drainage, resisting medium can only through the damping hole 423 on piston to
Rod chamber drainage generates damping force, and disappear the energy for playing and reversely bouncing after device absorption moving contact of breaker closes a floodgate, further to press down
Moving contact of breaker processed closes a floodgate and reversely bounces.When choked flow mechanism 440 is triggered drainage, for the ease of resisting medium circulation, resistance
The drainage groove extended along its axis direction is set in the lateral surface of flow valve core 443, in addition, drainage groove can also be arranged on
On the inner wall of choked flow chamber 441.
When breaker closing, electromagnetic driver 300 drives to disappear and plays the piston of device and move to rod chamber direction, in rod chamber
Resisting medium compressed, the resisting medium in the rod chamber through on piston damping hole flow into rodless cavity, generate damping force, inhale
Portion of energy of the moving contact of breaker before combined floodgate is received, reduces switch on of moving contact instantaneous velocity, to inhibit moving contact of breaker to close
Lock spring；The piston for playing device disappear in stroke latter end, the bank bar 4332 of drainage mechanism 430 hits the 1st end cap 412, drainage
Spool 433 is moved to far from the direction of drainage valve seat 432, and drainage mechanism 430 is triggered drainage, the resisting medium stream in rod chamber
Enter drainage lumens 431, the resisting medium for flowing into drainage lumens 431 squeezes the choked flow spool 443 of choked flow mechanism 440, choked flow spool 443 to
Direction far from choked flow valve seat 442 is mobile, and choked flow mechanism 440 is triggered drainage, i.e. drainage mechanism 430, choked flow mechanism 440 successively
Be triggered drainage, then the resisting medium of rod chamber flows into rodless cavity through drainage mechanism 430, choked flow mechanism 440, disappears and plays device 400
The energy stored at the end of the stroke is released, eliminate play driven caused by the resisting medium of device at the end of the stroke it is disconnected
To the driving force of spring after the device switch on of moving contact of road, moving contact of breaker closing rebound is further suppressed；After breaker closing, instead
Piston reverses direction is driven to move to the moving contact of spring, piston is from stroke end counter motion, in the effect of the 1st reset spring 434
Under, since the bank bar 4332 of drainage mechanism 430 protrudes from the upper surface of piston 421, on the top and the 1st end of bank bar 4332
Lid 412 is in contact during effect, and drainage spool 433 cannot reset immediately, then drainage mechanism 430 is still in the drainage that is triggered
State, i.e., drainage mechanism 430 cannot be reset immediately blocking circulation, but the restoring force of the 2nd reset spring effect under, resistance
Stream mechanism is immediately reset blocking circulation, prevents the resisting medium in rodless cavity through drainage mechanism 430 to rod chamber drainage, no bar
Intracavitary resisting medium can only flow into rod chamber through the damping hole on piston 421, generate damping force, and it is anti-to absorb moving contact after closing a floodgate
To the energy of spring, another step inhibits switch on of moving contact reversely to bounce.It is above-mentioned to inhibit breaker dynamic using three kinds of technological means
Reversed spring occurs for contact, to avoid moving contact of breaker that closing rebound arcing occurs, and avoids breaker that arcing institute occurs
The explosion of cause improves the combined floodgate performance and safety of breaker.
Breaker of the invention is made of at least one single-pole switch, which includes vacuum bubbles, insulating cylinder, electromagnetism
Driver and disappears and play device.The movable contact rod of vacuum bubbles and the upper shaft lever axis connection of insulating cylinder, the lower shaft and electromagnetism of insulating cylinder
The upper end axis connection of the output shaft of driver.Disappearing, to play device include closed cylinder body, piston mechanism, drainage mechanism and choked flow machine
Structure.Piston mechanism includes setting in the intracorporal piston of cylinder and piston rod, 1st end cap and work of the lower end of piston rod through cylinder body
Plug sealing is fixed, the upper end of piston rod and the lower end axis connection of driver output shaft, and piston and cylinder body sealing cooperate.Piston
The inner space of cylinder body is divided into rod chamber and rodless cavity by upper setting damping hole, piston.Drainage mechanism is arranged in piston, row
Flowing mechanism includes drainage spool, and the bank bar of drainage spool protrudes from the upper surface of piston and protrudes into rod chamber, is suitable for outflow valve
Core hits the 1st end cap to trigger the drainage of drainage mechanism, is discharged into the resisting medium of storage high-energy in rod chamber through drainage mechanism
Rodless cavity eliminates the urging force for promoting moving contact reversely to bounce caused by resisting medium at the end of the stroke.The setting of choked flow mechanism
In piston, positioned at the lower end surface side of piston, mechanism is connected with drainage, and after combined floodgate, the moving contact of spring drives piston reverses direction
Movement, piston is from stroke end counter motion, and drainage mechanism is not capable of resetting blocking circulation, but choked flow mechanism is reset and blocks stream
It is logical, prevent resisting medium in rodless cavity through drainage mechanism to rod chamber drainage, the resisting medium in rodless cavity can only be through piston
On damping hole flow into rod chamber, generate damping force, absorb the energy that reversely bounces of moving contact after closing a floodgate, further suppress contact
Reversed spring.
Compared with prior art, of the invention to achieve following beneficial technical effect:
Disappear built in breaker and play device, when breaker closing, disappearing plays device and absorb portion of the moving contact of breaker before combined floodgate
Point energy reduces combined floodgate instantaneous velocity, disappear driving of playing that the promotion moving contact that device generates at the end of the stroke reversely bounces
Power absorbs the energy that moving contact reversely bounces after closing a floodgate, to inhibit the reversed spring of moving contact of breaker, to avoid moving contact
The closing rebound arcing occurred between static contact extends the breaker service life, and avoids breaker that explosion caused by arcing occurs,
Be conducive to improve the combined floodgate performance and safety of breaker.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, the present invention
Claimed range is delineated by the appended claims, the specification and equivalents thereof from the appended claims.
Claims (10)
1. a kind of breaker is made of at least one single-pole switch (A), which includes vacuum bubbles (100), insulation
Cylinder (200), electromagnetic driver (300), the movable contact rod (130) of the vacuum bubbles (100) and the upper shaft lever of insulating cylinder (200)
(220) axis connection, the driver output shaft (370) of the lower shaft (230) and electromagnetic driver (300) of insulating cylinder (200) it is upper
End axis connection；It is characterized by also including disappearing to play device (400), this disappear play device (400) include closed cylinder body (410),
Piston mechanism (420), drainage mechanism (430) and choked flow mechanism (440)；Piston mechanism (420) includes setting in cylinder body (410)
Piston (421) and piston rod (422), the 1st end cap (412) and piston of cylinder body (410) are run through in the lower end of piston rod (422)
(421) sealing is fixed, the upper end of piston rod (422) and the lower end axis connection of driver output shaft (370), piston (421)
It seals and cooperates with cylinder body (410)；Damping hole (423) are set on piston (421), piston (421) is by the inner space of cylinder body (410)
It is divided into rod chamber and rodless cavity；In piston (421), drainage mechanism (430) includes drainage spool for drainage mechanism (430) setting
(433), the bank bar (4332) of drainage spool (433) protrudes from the upper surface of piston (421) and protrudes into rod chamber, is suitable for drainage
Spool (433) hits the 1st end cap (412) to trigger drainage mechanism (430) drainage, makes the resisting medium in rod chamber through drainage machine
Structure (430) is discharged into rodless cavity；Choked flow mechanism (440) setting is located at the lower end surface side of piston (421), with row in piston (421)
Stream mechanism (430) is connected, suitable for preventing the resisting medium in rodless cavity through drainage mechanism (430) to rod chamber drainage.
2. breaker according to claim 1, it is characterised in that: the drainage mechanism (430) include drainage lumens (431),
Drainage valve seat (432), drainage spool (433), the 1st reset spring (434) and end (435)；The middle part setting of end (435) is suitable
In the recirculation hole of resisting medium circulation；Drainage lumens (431) are the cavity for the underpart opening being arranged in piston (421), along work
The axis direction for filling in (421) extends；Drainage valve seat (432) built in the upper end of drainage lumens (431), in drainage valve seat (432)
Feeler lever hole is arranged in portion；Drainage spool (433) includes spool portion (4331) and bank bar (4332)；The drainage spool (433),
1 reset spring (434) is successively assemblied in drainage lumens (431), and bank bar (4332) protrudes from piston (421) through feeler lever hole
Rod chamber is protruded into upper surface, and the underpart opening of end (435) and drainage lumens (431), which seals, to be fixed, the 1st reset spring (434)
In compressive state, spool portion (4331) and drainage valve seat (432) sealing cooperates.
3. breaker according to claim 2, it is characterised in that: the choked flow mechanism (440) include choked flow chamber (441),
Choked flow valve seat (442), choked flow spool (443), the 2nd reset spring (444) and end clamp plate (445)；End clamp plate is set in the middle part of (445)
Set the through-hole for being suitable for resisting medium circulation；Choked flow chamber (441) is arranged in the recirculation hole of end (435), is located at end (435)
Lower part, the axis direction along end (435) extend downwardly；Choked flow valve seat (442) is arranged in the upper end of choked flow chamber (441)；Institute
State choked flow spool (443), the 2nd reset spring (444) is successively assemblied in choked flow chamber (441), end clamp plate (445) and choked flow chamber
(441) underpart opening is fixed, and the 2nd reset spring (444) is in compressive state, choked flow spool (443) and choked flow valve seat
(442) sealing cooperation；Choked flow mechanism (440) is suitable for control resisting medium can only be from rod chamber to no bar through drainage mechanism (430)
Chamber drainage.
4. breaker according to claim 3, it is characterised in that: the recirculation hole of the end (435) is along the end (435)
Axis direction extend, the choked flow chamber (441), recirculation hole and end (435) coaxial line cooperate.
5. breaker according to claim 1, it is characterised in that: the cylinder body (410) includes cylinder barrel (411), the 1st end cap
(412), the 2nd end cap (413)；Cylinder barrel (411) is cylindrical, and the upper end of the 1st end cap (412) and cylinder barrel (411), which seals, to be fixed, the
The sealing of the lower end of 2 end caps (413) and cylinder barrel (411) is fixed.
6. according to the breaker described in claim 5, it is characterised in that: through-hole is arranged on the 2nd end cap (413), in the through-hole
Assembly is suitable for the check valve of the injection resisting medium into cylinder body (410).
7. breaker according to claim 1, it is characterised in that: the electromagnetic driver (300) includes cylindrical
Driver cylinder body (310), driver upper end cover (320), driver lower cover (330), iron core (360) and driver output shaft
(370), setting in the 1st caulking groove (311) circumferentially surrounded and the 2nd caulking groove in its cylinder wall in driver cylinder body (310)
(312), the setting of the 1st caulking groove (311) is arranged in the upper end of cylinder body (310), the 2nd caulking groove (312) in the lower end of cylinder body (310)
Portion；The 1st coil (340) is assembled in 1st caulking groove (311), assembles the 2nd coil (350) in the 2nd caulking groove (312)；Iron core (360) is set
It sets in cylinder body (310), is set in the outside of driver output shaft (370) and fixation, driver upper end cover (320) and cylinder body
(310) upper end is fixed, and the lower end of driver lower cover (330) and cylinder body (310) is fixed, driver output shaft (370) it is upper
End is through driver upper end cover (320) and stretches out, and lower end is through driver lower cover (330) and stretches out.
8. breaker according to claim 1, it is characterised in that: the vacuum bubbles (100) include vacuum chamber (110), move
Contact (120), movable contact rod (130), static contact (140) and stationary contact head rod (150), moving contact (120), static contact (140) exist
It is positioned opposite in vacuum chamber, lower section of the moving contact (120) in static contact (140)；The lower end of stationary contact head rod (150) is from vacuum chamber
(110) upper end is protruded into fixed with static contact (140), and stationary contact head rod (150) and vacuum chamber (110) sealing are fixed；Movable contact rod
(130) upper end protrudes into, movable contact rod (130) and vacuum chamber fixed with moving contact (120) from vacuum chamber (110) lower end
(110) sealing is with merging slidable fit.
9. breaker according to claim 1, it is characterised in that: the insulating cylinder (200) include insulator (210), on
Shaft (220) and lower shaft (230)；Insulator (210) is in the form of a column, and side setting is suitable for increasing multiple umbrellas of insulation creep distance
Skirt；The upper end of upper shaft lever (220) and insulator (210) is fixed, and the lower end of lower shaft (230) and insulator (210) is fixed.
10. breaker described in -9 any claims according to claim 1, it is characterised in that: the quantity of the single-pole switch
It is 2,3 or multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372446.1A CN109360766B8 (en) | 2018-11-16 | 2018-11-16 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372446.1A CN109360766B8 (en) | 2018-11-16 | 2018-11-16 | Circuit breaker |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| CN109360766A true CN109360766A (en) | 2019-02-19 |
| CN109360766B CN109360766B (en) | 2020-09-25 |
| CN109360766B8 CN109360766B8 (en) | 2020-11-13 |
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ID=65332144
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811372446.1A Active CN109360766B8 (en) | 2018-11-16 | 2018-11-16 | Circuit breaker |
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| Country | Link |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012238505A (en) * | 2011-05-12 | 2012-12-06 | Mitsubishi Electric Corp | Electromagnetic operation type vacuum circuit breaker |
| CN203670576U (en) * | 2014-01-13 | 2014-06-25 | 江苏现代电力科技股份有限公司 | Air-resistance shock absorber |
-
2018
- 2018-11-16 CN CN201811372446.1A patent/CN109360766B8/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012238505A (en) * | 2011-05-12 | 2012-12-06 | Mitsubishi Electric Corp | Electromagnetic operation type vacuum circuit breaker |
| CN203670576U (en) * | 2014-01-13 | 2014-06-25 | 江苏现代电力科技股份有限公司 | Air-resistance shock absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109360766B (en) | 2020-09-25 |
| CN109360766B8 (en) | 2020-11-13 |
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Effective date of registration: 20200824 Address after: Xin Ji Zhen Da Zhuang Cun, Fengtai County, Taizhou City, Zhejiang Province Applicant after: XIYI ELECTRICITY Co.,Ltd. Address before: 232170 Dazhuang Village, Xinji Town, Fengtai County, Huainan City, Anhui Province Applicant before: Wu Changlan |
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| TA01 | Transfer of patent application right | ||
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| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 317300 Yongan Industrial Zone, Xianju, Zhejiang, China, Patentee after: XIYI ELECTRICITY Co.,Ltd. Address before: Xin Ji Zhen Da Zhuang Cun, Fengtai County, Taizhou City, Zhejiang Province Patentee before: XIYI ELECTRICITY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CI03 | Correction of invention patent |
Correction item: Address Correct: 317300 Yongan Industrial Zone, Xianju, Zhejiang, China, False: Xin Ji Zhen Da Zhuang Cun, Fengtai County, Taizhou City, Zhejiang Province Number: 39-02 Volume: 36 Correction item: Address Correct: 317300 Yongan Industrial Zone, Xianju, Zhejiang, China, False: Xin Ji Zhen Da Zhuang Cun, Fengtai County, Taizhou City, Zhejiang Province Number: 39-02 Page: The title page Volume: 36 |
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| CI03 | Correction of invention patent | ||
| CP03 | Change of name, title or address |
Address after: Yongan Industrial Cluster, Xianju County, Taizhou City, Zhejiang Province, 318000 Patentee after: Xiyi Electric Group Co.,Ltd. Address before: 317300 Yongan Industrial Agglomeration Area, Xianju County, Taizhou City, Zhejiang Province Patentee before: XIYI ELECTRICITY CO.,LTD. |
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| CP03 | Change of name, title or address |