CN105931917B - A kind of vacuum circuit breaker - Google Patents
A kind of vacuum circuit breaker Download PDFInfo
- Publication number
- CN105931917B CN105931917B CN201610514628.2A CN201610514628A CN105931917B CN 105931917 B CN105931917 B CN 105931917B CN 201610514628 A CN201610514628 A CN 201610514628A CN 105931917 B CN105931917 B CN 105931917B
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- Prior art keywords
- arc
- permanent magnet
- chutes
- contact
- conducting rod
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- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 35
- 239000012212 insulator Substances 0.000 claims abstract description 30
- 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 claims abstract description 25
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 24
- 239000000919 ceramic Substances 0.000 claims description 31
- 239000000956 alloy Substances 0.000 claims description 23
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 19
- 229910045601 alloy Inorganic materials 0.000 claims description 18
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- 239000004065 semiconductor Substances 0.000 claims description 11
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 3
- 235000012149 noodles Nutrition 0.000 claims description 3
- 230000008520 organization Effects 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- 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
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a kind of vacuum circuit breakers, include pedestal, are fixedly mounted on the shell of pedestal front upper, are fixedly connected on 3 groups of insulator b of the outer casing back, every group of insulator b rear end is fixedly connected with inlet wire seat and wire outlet seat；Arc-chutes there are one being set between inlet wire seat and wire outlet seat；The arc-chutes include the porcelain shell there are one tubulose, fixed seal connection is in the porcelain shell lower end, the lower cover of upper end, upper cover body respectively, across lower cover and with the lower conducting rod of lower cover fixed seal connection, across upper cover body and with the upper conducting rod of upper cover body fixed seal connection；The upper conducting rod lower end forms upper contact head；Sliding sleeve is connected to lower contact assembly on the lower conducting rod；Silicon steel block is installed on lower contact assembly；The arc-chutes are externally provided with drive component；The driving component includes and the permanent magnet a silicon steel block to be driven to move.The arc-chutes of vacuum circuit breaker of the present invention have excellent sealing performance, and service life is long.
Description
Technical field
The invention belongs to field of electrical equipment, and in particular to a kind of structure of vacuum circuit breaker.
Background technology
The arc-chutes of existing vacuum circuit breaker generally slidably connect moving conductive rod, operating mechanism and moving conductive in lower end
It is connected between bar with insulator and realizes linkage, the moving contact of moving conductive rod upper end and arc-chutes top are controlled by operating mechanism
The static contact of static conductive rod lower end is closed or separates, so as to fulfill the switch closing and switch opening of breaker；In order to ensure that arc extinguishing is indoor
Vacuum degree is also associated with metal bellows between moving conductive rod and arc-chutes lower end, the ripple in moving conductive rod downward separating brake
Pipe is shunk, and bellows stretches when moving conductive rod closes a floodgate upwards, and during multiple divide-shut brake, bellows, which easily generates, to strain and shadow
The indoor vacuum degree of arc extinguishing is rung, directly affects arc quenching effect.The Chinese patent of Patent No. 2009101323216 discloses one kind
Large-capacity vacuum circuit breaker improves the turn-off capacity of breaker, but its by applying longitudinal magnetic field between electrical conductor
Arc-chutes still employ bellows to realize sealing, there is no the sealing problem for solving arc-chutes very well, in vacuum circuit breaker
Easily there is failure caused by poor sealing in arc-chutes after divide-shut brake number is more.
Invention content
The technical problems to be solved by the invention are：In view of the deficienciess of the prior art, provide a kind of arc-chutes sealing
Property it is good, service life length vacuum circuit breaker constructions.
Purpose to realize the present invention, is achieved using following technical scheme：A kind of vacuum circuit breaker, includes bottom
Seat is fixedly mounted on the shell of pedestal front upper, is fixedly connected on 3 groups of insulator b of the outer casing back, described in every group absolutely
Edge b includes longitudinally disposed two；Underlying insulator b rear ends are fixedly connected with wire outlet seat, are located above
Insulator b rear ends are fixedly connected with inlet wire seat；
With the inlet wire seats connecting of insulator b described in every group and being set between wire outlet seat there are one arc-chutes；The arc-chutes packet
Include the porcelain shell there are one tubulose, fixed seal connection is in the lower cover of the porcelain shell lower end, and fixed seal connection is in the porcelain shell
The upper cover body of upper end, across lower cover and with the lower conducting rod of lower cover fixed seal connection, across upper cover body and and upper cover body
The upper conducting rod of fixed seal connection；The upper conducting rod lower end forms upper contact head；Sliding sleeve is connected on the lower conducting rod
Lower contact assembly；
The lower conducting rod is electrically connected with wire outlet seat fixation, and the upper conducting rod is electrically connected with the fixation of inlet wire seat；
The lower contact assembly includes lower contact and the socket pipe for being integrally attached to lower contact lower end, the socket pipe
Medium position forms the first contact part, and the lower end of the socket pipe forms the second contact part, is located on the socket pipe
The position of first contact part and the second contact part circumferentially offers the strip crevice being placed equidistant with, each first contact
Portion, the second contact part are between two adjacent strip crevices；First contact part and the second contact part with it is described under lead
Electric pole outer wall is slidably matched electrical connection；
The position of the socket pipe outer wall positioned at the first contact part and the second contact part between, which forms ceramic ring, matches and heals up, institute
Ceramic ring is stated with upper installation of healing up there are two semicircular isolation ceramic ring, the both ends that ceramic ring is isolated are connected with extension respectively,
Two semicircular silicon steel blocks are arranged with outside the isolation ceramic ring, are fixedly connected between two silicon steel blocks by screw, institute
It states silicon steel block inner wall and forms the ceramic ring notch positioned with ceramic ring cooperation is isolated；
The second contact part end forms edge of turning up, and the edge end of turning up upwardly extends, each described outer
Spliced eye is offered in turn-up portion；It is located at the second contact part and ceramic ring outside the socket pipe with being arranged with memorial alloy between healing up
Ring, the position that the memorial alloy ring lower end corresponds to each spliced eye are connected with deformation arm, under each deformation arm
End is connected with the plug division with spliced eye cooperation grafting；It is located at two deformation arms on the memorial alloy ring
Between position tool there are one gap；The memorial alloy ring is clamped between socket pipe outer wall and the extension that ceramic ring is isolated；
Position of the porcelain shell inner wall between the upper contact head, lower contact has been separately formed locating ring, lower fixed
Position circle；There are one shielding cylinders for position installation in the porcelain shell between upper locating ring, lower locating ring；It is located in the porcelain shell
Memory alloy spring is installed between lower locating ring and silicon steel block；
The arc-chutes include 3 be arranged in parallel, and 3 arc-chutes are externally provided with drive component；The driving group
Part is included there are one horizontally disposed rectangular installing plate, and the position of corresponding 3 arc-chutes opens up on the installing plate
There is arc-chutes matching hole, the periphery that arc-chutes matching hole is located on the installing plate is installed with and silicon steel block to be driven to move
Dynamic permanent magnet a；Four vertex positions of the installing plate offer the hole that is slidably matched, and each slip is corresponded on the pedestal and is matched
The position for closing hole is equipped with longitudinally disposed guide rod, and described be slidably matched between hole and guide rod is connected by linear bearing；
The installing plate is connected with riser far from shell one end, and the outer wall of the riser is connected with semiconductor refrigerating
Piece, the huyashi-chuuka (cold chinese-style noodles) of semiconductor chilling plate are fixedly connected with riser, and the hot face of semiconductor chilling plate is fixedly connected with radiating seat, described to dissipate
Radiator fan is installed on hot seat；
The position being located on the pedestal between the adjacent wire outlet seat of each two is equipped with permanent magnetic operating component, described in two
Pass through two insulator a connections between permanent magnetic operating component and the installing plate；
The permanent magnetic operating component includes the external stator being fixedly mounted on pedestal and is slidably connected with external stator
Interior mover；The external stator includes the upper electromagnet for there are one stator casing, being fixedly connected on stator casing internal upper part, Yi Jigu
Surely it is connected to the lower electromagnet of lower part in stator casing；The interior mover is arranged on electromagnet and lower electromagnet there are one including
Between permanent magnet b and be fixedly connected with permanent magnet b and upper and lower end is pierced by aluminum alloy material to except stator casing
Actuating bar；The upper end of the actuating bar is fixedly connected with insulator a lower ends, and the actuating bar lower end forms rack；
Rotation connection is there are one interlocking bar in the horizontal direction in the pedestal, corresponding two permanent magnetic operatings in interlocking bar
There are two the transmission gear a being connected by meshing transmission with rack for the position fixed installation of component.
As preferred：Pressure sensor is also equipped between the actuating bar upper end and the insulator a lower ends；The pressure
Force snesor is electrically connected with installing the signal input part of controller in the shell, the lower electromagnet, upper electromagnet respectively with
The output terminal electrical connection of controller, the case nose are equipped with switch knob and opening button, the switch knob and separating brake
Button is electrically connected respectively with the signal input part of controller；When pressing switch knob, the upper electromagnet of controller control generate with forever
Magnetic field in the same direction magnet b, lower electromagnet generates and magnetic field reversed permanent magnet b, makes interior mover that drive component be driven to move up,
Permanent magnet a on drive component drives silicon steel block to be moved up together with entire lower contact assembly is whole along lower conducting rod, finally makes
Lower contact is closed with upper contact head；When pressing opening button, controller control lower electromagnet generates and magnetic field in the same direction permanent magnet b,
Upper electromagnet generates and magnetic field reversed permanent magnet b, makes interior mover that drive component be driven to move down, the permanent magnetism on drive component
Iron a drives the whole lower contact assembly of silicon steel block connection integrally to be moved down along lower conducting rod, finally makes lower contact and upper contact head point
From；When arc extinguishing indoor temperature is higher than setting value, memory alloy spring, which is heated, to be reached phase transition temperature and generates elongated trend, pressure
Sensor detects the generation of controller control lower electromagnet and magnetic field in the same direction permanent magnet b when pressure increases up to setting value, on
Electromagnet generates and magnetic field reversed permanent magnet b, makes interior mover that drive component be driven to move down, the permanent magnet on drive component
A drives the whole lower contact assembly of silicon steel block connection integrally to be moved down along lower conducting rod, and lower contact is finally made to be detached with upper contact head.
As preferred：It is located at the position between two transmission gear a in the interlocking bar and is also equipped with gear b82, it is described
It is fixedly connected with there are one being also rotatablely connected in pedestal with the vertically disposed manual actuation axis 9 of interlocking bar, manual actuation shaft rear end
The gear c91 being connected by meshing transmission with the gear b, manual actuation axis front end are connected with the Manual stored energy organization in pedestal.
As preferred：The periphery of each arc-chutes matching hole is installed with 3 or more forever on the installing plate
Magnet a43, and each permanent magnet a is along the circumferentially equidistant arrangement of arc-chutes matching hole.
As preferred：The permanent magnet a surfaces are coated with reflective heat-insulation paint.
Compared with prior art, the beneficial effects of the invention are as follows：It will be in the arc-chutes of vacuum circuit breaker in the present invention
Lower conducting rod is designed to the form being fixedly connected with lower cover, is then slided in lower conducting rod upper end and is arranged a lower sets of contacts
Part, and silicon steel block is installed on lower contact assembly, drive silicon by being located at the drive component with permanent magnet a except arc-chutes
Bloom is moved up and down together with entire lower contact assembly, so as to fulfill upper contact head, the divide-shut brake of lower contact, eliminates be used in this way
The metal bellows of sealing, it can be ensured that good sealing effect.
When circuit occurs when short circuit needs separating brake since electric current is excessive, separating brake has difficulties, and circuit calorific value during short circuit
Greatly, therefore in arc-chutes memory alloy spring is set, when arc extinguishing indoor temperature increases, memory alloy spring generates phase transformation (root
The factually temperature value selection phase transition temperature matched memory alloy spring on border), generate the trend of elongation, such permanent magnet a drivings
When silicon steel block moves down realization separating brake, memory alloy spring generates downward thrust simultaneously, it is ensured that separating brake success.
There are two groups of contact parts additionally, due to the lower contact assembly, occur to make when short circuit needs separating brake in circuit in this way
Into larger resistance, therefore memorial alloy ring is installed in the second contact part position, contact assembly temperature increases at present in line short, note
The deformation arm for recalling alloy hoop is bent outwardly so that the pressure between the second contact part and lower conducting rod reduces, conducive to separating brake at present
Contact assembly can be slided with relatively low frictional resistance along lower conducting rod.
Since permanent magnet is more sensitive to temperature, therefore the installing plate of the driving component and riser use aluminum alloy materials
It being made, while is radiated using semiconductor chilling plate to installing plate and permanent magnet a, it is ensured that permanent magnet a is operated in lower temperature,
Prolong the service life.In addition reflective heat-insulation paint is coated on permanent magnet a surfaces, for the purposes of making permanent magnet a not raying heats
Influence and magnetic force is caused to weaken.
It, can be when electric current is excessive or in arc-chutes by installing pressure sensor between actuating bar and insulator a
During temperature anomaly, memory alloy spring is heated elongated, and compressing silicon steel block generates slide downward, and silicon steel block is with permanent magnet a vertical
Distance on direction increases, and pressure sensor is made to detect that pressure value increases, when pressure value reaches setting value, controller control
Permanent magnetic operating component performs sub-switching operation.It obtains the temperature information of arc-chutes indirectly by pressure sensor, electricity can be integrated
The current information that current transformer detects more accurately judges the working conditions of arc-chutes, there are can be timely during failure
Accurately carry out separating brake, it is ensured that the safe operation of electrical equipment.
Description of the drawings
Fig. 1, Fig. 2 are the structure diagrams of the present invention.
Fig. 3 is the attachment structure schematic diagram of critical piece of the present invention.
Fig. 4 is the structure diagram of arc-chutes part.
Fig. 5 is the decomposition texture schematic diagram of arc-chutes part.
Fig. 6 is lower contact assembly and the structure diagram of lower conductive bar part.
Fig. 7 is the schematic cross-sectional view of porcelain shell.
Fig. 8 is the structure diagram of lower contact assembly.
Fig. 9 is the schematic cross-sectional view of lower contact assembly.
Figure 10 is the structure diagram of memorial alloy ring.
Figure 11, Figure 12 are the structure diagrams of drive component and permanent magnetic operating components.
Figure 13 is the schematic cross-sectional view of permanent magnetic operating components.
1st, pedestal；11st, guide rod；12nd, rear block cover；2nd, shell；31st, wire outlet seat；32nd, inlet wire seat；4th, drive component；41st, pacify
Loading board；411st, be slidably matched hole；412nd, arc-chutes matching hole；42nd, riser；43rd, permanent magnet a；44th, insulator a；45th, semiconductor
Cooling piece；451st, radiating seat；452nd, radiator fan；5th, arc-chutes；51st, lower conducting rod；52nd, porcelain shell；5201st, lower locating ring；
5202nd, upper locating ring；521st, lower cover；522nd, upper cover body；53rd, upper conducting rod；531st, upper contact head；54th, shielding cylinder；55th, it is lower to touch
Head assembly；551st, lower contact；552nd, socket pipe；5521st, the first contact part；5522nd, ceramic ring matches and heals up；5523rd, the second contact part；
5524th, it turns up edge；5525th, spliced eye；56th, memory alloy spring；57th, ceramic ring is isolated；571st, extension；58th, silicon steel block；
581st, ceramic ring notch；59th, memorial alloy ring；591st, gap；592nd, deformation arm；593rd, plug division；6th, insulator b；7th, forever
Magnetic actuating component；71st, external stator；711st, stator casing；712nd, lower electromagnet；713rd, upper electromagnet；72nd, interior mover；721st, forever
Magnet b；722nd, actuating bar；7221st, rack；73rd, pressure sensor；8th, interlocking bar；81st, transmission gear a；82nd, gear b；9th, hand
Dynamic drive shaft；91st, gear c.
Specific embodiment
Embodiment 1
According to Fig. 1 to Figure 13, the present embodiment is a kind of low-voltage vacuum circuit breaker, includes pedestal 1, is fixedly mounted on
The shell 2 of pedestal front upper is fixedly connected on 3 groups of insulator b6 of the outer casing back, and insulator b includes described in every group
Longitudinally disposed two；Underlying insulator b rear ends are fixedly connected with wire outlet seat 31, after the insulator b being located above
End is fixedly connected with inlet wire seat 32.
With the inlet wire seats connecting of insulator b described in every group and being set between wire outlet seat there are one arc-chutes 5；The arc-chutes packet
Include the porcelain shell 52 there are one tubulose, fixed seal connection is in the lower cover 521 of the porcelain shell lower end, and fixed seal connection is described
The upper cover body 522 of porcelain shell upper end, across lower cover and with the lower conducting rod 51 of lower cover fixed seal connection, across upper cover body and
With the upper conducting rod 53 of upper cover body fixed seal connection；The upper conducting rod lower end forms upper contact head 531；The lower conducting rod
Upper sliding sleeve is connected to lower contact assembly 55.
The lower conducting rod is electrically connected with wire outlet seat fixation, and the upper conducting rod is electrically connected with the fixation of inlet wire seat.
The lower contact assembly includes lower contact 551 and the socket pipe 552 for being integrally attached to lower contact lower end, described
Socket pipe medium position forms the first contact part 5521, and the lower end of the socket pipe forms the second contact part 5523, institute
It states and circumferentially offers the strip crevice being placed equidistant with positioned at the position of the first contact part and the second contact part on socket pipe, each
First contact part, the second contact part are between two adjacent strip crevices；First contact part and the second contact
Portion is slidably matched with the lower conducting rod outer wall and is electrically connected.
The position of the socket pipe outer wall positioned at the first contact part and the second contact part between, which forms ceramic ring, matches and heals up
5522, there are two semicircular isolation ceramic rings 57 with upper installation of healing up for the ceramic ring, and the both ends difference integrally connected of ceramic ring is isolated
There is extension 571, be arranged with two semicircular silicon steel blocks 58 outside the isolation ceramic ring, pass through spiral shell between two silicon steel blocks
Nail is fixedly connected, and the silicon steel block inner wall forms the ceramic ring notch 581 with ceramic ring cooperation positioning is isolated.
The second contact part end forms edge 5524 of turning up, and the edge end of turning up upwardly extends, Mei Gesuo
It states and spliced eye 5525 is offered in edge of turning up；It is located at the second contact part and ceramic ring outside the socket pipe with being arranged between healing up
Memorial alloy ring 59, the position that the memorial alloy ring lower end corresponds to each spliced eye are connected with deformation arm 592, often
The lower end of a deformation arm is connected with the plug division 593 with spliced eye cooperation grafting；The memorial alloy ring is upper
There are one gaps 591 for position tool between two deformation arms；The memorial alloy ring be clamped in socket pipe outer wall with every
From between the extension of ceramic ring.
Position of the porcelain shell inner wall between the upper contact head, lower contact be separately formed locating ring 5202,
Lower locating ring 5201；There are one shielding cylinders 54 for position installation in the porcelain shell between upper locating ring, lower locating ring；It is described
Memory alloy spring 56 is installed between lower locating ring and silicon steel block in porcelain shell.
The arc-chutes include 3 be arranged in parallel, and 3 arc-chutes are externally provided with drive component 4；The driving group
Part is included there are one horizontally disposed rectangular installing plate 41, and the position of corresponding 3 arc-chutes is opened on the installing plate
Equipped with arc-chutes matching hole 412, it is installed with and positioned at the periphery of arc-chutes matching hole to drive silicon on the installing plate
The permanent magnet a43 of bloom movement；Four vertex positions of the installing plate offer the hole 411 that is slidably matched, right on the pedestal
Answer the position in each hole that is slidably matched that longitudinally disposed guide rod 11 is installed, described be slidably matched between hole and guide rod passes through straight line
Bearing connects.
The installing plate is connected with riser 42 far from shell one end, and the outer wall of the riser is connected with semiconductor refrigerating
Piece 45, the huyashi-chuuka (cold chinese-style noodles) of semiconductor chilling plate are fixedly connected with riser, and the hot face of semiconductor chilling plate is fixedly connected with radiating seat 451,
Radiator fan 452 is installed on the radiating seat.
The position being located on the pedestal between the adjacent wire outlet seat of each two is equipped with permanent magnetic operating component 7, two institutes
It states between permanent magnetic operating component and the installing plate through two insulator a6 connections.
The permanent magnetic operating component includes the external stator 71 being fixedly mounted on pedestal and is slidably connected with external stator
Interior mover 72；The external stator includes the upper electromagnet for there are one stator casing 711, being fixedly connected on stator casing internal upper part
713 and it is fixedly connected on the lower electromagnet 712 of lower part in stator casing；The interior mover is including there are one be arranged on to power on
Permanent magnet b721 between magnet and lower electromagnet and be fixedly connected with permanent magnet b and upper and lower end be pierced by stator casing it
The actuating bar 722 of outer aluminum alloy material；The upper end of the actuating bar is fixedly connected with insulator a lower ends, under the actuating bar
End forms rack 7221.
Rotation connection is there are one interlocking bar 8 in the horizontal direction in the pedestal, the corresponding two permanent magnetism behaviour in interlocking bar
There are two the transmission gear a81 being connected by meshing transmission with rack for the position fixed installation of dynamic component.
Pressure sensor 73 is also equipped between the actuating bar upper end and the insulator a lower ends；The pressure sensing
Device is electrically connected with installing the signal input part of controller in the shell, the lower electromagnet, upper electromagnet respectively with controller
Output terminal electrical connection, the case nose is equipped with switch knob and opening button, the switch knob and opening button point
It is not electrically connected with the signal input part of controller；When pressing switch knob, the upper electromagnet of controller control generates same with permanent magnet b
To magnetic field, lower electromagnet generate with reversed permanent magnet b magnetic field, make interior mover that drive component be driven to move up, driving group
Permanent magnet a on part drives silicon steel block to be moved up together with entire lower contact assembly is whole along lower conducting rod, finally makes lower contact
It is closed with upper contact head；When pressing opening button, controller control lower electromagnet generates and magnetic field in the same direction permanent magnet b, upper electromagnetism
Iron generates and magnetic field reversed permanent magnet b, makes interior mover that drive component be driven to move down, the permanent magnet a bands on drive component
The dynamic whole lower contact assembly of silicon steel block connection is integrally moved down along lower conducting rod, and lower contact is finally made to be detached with upper contact head；It goes out
When arc indoor temperature is higher than setting value, memory alloy spring, which is heated, to be reached phase transition temperature and generates elongated trend, pressure sensing
Device detects that controller control lower electromagnet generates and magnetic field in the same direction permanent magnet b, upper electromagnetism when pressure increases up to setting value
Iron generates and magnetic field reversed permanent magnet b, makes interior mover that drive component be driven to move down, the permanent magnet a bands on drive component
The dynamic whole lower contact assembly of silicon steel block connection is integrally moved down along lower conducting rod, and lower contact is finally made to be detached with upper contact head.
The position being located in the interlocking bar between two transmission gear a is also equipped with gear b82, also turns in the pedestal
There are one dynamic connections is fixedly connected with and the gear b with the vertically disposed manual actuation axis 9 of interlocking bar, manual actuation shaft rear end
The gear c91 being connected by meshing transmission, manual actuation axis front end are connected with the Manual stored energy organization in pedestal.
The periphery of each arc-chutes matching hole is installed with the permanent magnet a43 of 3 or more on the installing plate, and
Each permanent magnet a is along the circumferentially equidistant arrangement of arc-chutes matching hole.
The permanent magnet a surfaces are coated with reflective heat-insulation paint.
Since the vacuum circuit breaker by permanent magnet a drives silicon steel block to move up and down across the porcelain shell of arc-chutes, exist point
The situation of lock failure, therefore connect on the circuit of vacuum circuit breaker of the present invention one and led as described in the background art with dynamic
The conventional vacuum breaker of electric pole, and the controller of two vacuum circuit breakers is connected, when the vacuum circuit breaker separating brake of the present invention
The controller of conventional vacuum circuit breaker detects that the vacuum circuit breaker of the present invention does not have separating brake by current transformer after 5ms,
Then conventional vacuum breaker carries out separating brake action immediately, improves safety.
The lower conducting rod in the arc-chutes of vacuum circuit breaker is designed to the form being fixedly connected with lower cover in the present invention,
Then it is slided in lower conducting rod upper end and is arranged a lower contact assembly, and silicon steel block is installed on lower contact assembly, by being located at
The drive component with permanent magnet a except arc-chutes drives silicon steel block moving up and down together with entire lower contact assembly, so as to
It realizes the divide-shut brake of upper contact head, lower contact, eliminates the metal bellows for sealing in this way, it can be ensured that good sealing effect
Fruit.
When circuit occurs when short circuit needs separating brake since electric current is excessive, separating brake has difficulties, and circuit calorific value during short circuit
Greatly, therefore in arc-chutes memory alloy spring is set, when arc extinguishing indoor temperature increases, memory alloy spring generates phase transformation (root
The factually temperature value selection phase transition temperature matched memory alloy spring on border), generate the trend of elongation, such permanent magnet a drivings
When silicon steel block moves down realization separating brake, memory alloy spring generates downward thrust simultaneously, it is ensured that separating brake success.
There are two groups of contact parts additionally, due to the lower contact assembly, occur to make when short circuit needs separating brake in circuit in this way
Into larger resistance, therefore memorial alloy ring is installed in the second contact part position, contact assembly temperature increases at present in line short, note
The deformation arm for recalling alloy hoop is bent outwardly so that the pressure between the second contact part and lower conducting rod reduces, conducive to separating brake at present
Contact assembly can be slided with relatively low frictional resistance along lower conducting rod.
Since permanent magnet is more sensitive to temperature, therefore the installing plate of the driving component and riser use aluminum alloy materials
It being made, while is radiated using semiconductor chilling plate to installing plate and permanent magnet a, it is ensured that permanent magnet a is operated in lower temperature,
Prolong the service life.In addition reflective heat-insulation paint is coated on permanent magnet a surfaces, for the purposes of making permanent magnet a not raying heats
Influence and magnetic force is caused to weaken.
It, can be when electric current is excessive or in arc-chutes by installing pressure sensor between actuating bar and insulator a
During temperature anomaly, memory alloy spring is heated elongated, and compressing silicon steel block generates slide downward, and silicon steel block is with permanent magnet a vertical
Distance on direction increases, and pressure sensor is made to detect that pressure value increases, when pressure value reaches setting value, controller control
Permanent magnetic operating component performs sub-switching operation.It obtains the temperature information of arc-chutes indirectly by pressure sensor, electricity can be integrated
The current information that current transformer detects more accurately judges the working conditions of arc-chutes, there are can be timely during failure
Accurately carry out separating brake, it is ensured that the safe operation of electrical equipment.
Embodiment 2
The present embodiment makes following improvement on the basis of embodiment 1：The driving component is further included mounted on installing plate
The electromagnet of upper arc-chutes matching hole periphery, each arc-chutes matching hole periphery installation is there are two the permanent magnet, when pressure passes
It is elongated that sensor illustrates that memory alloy spring has been heated when detecting pressure increase, and the electromagnet of controller control at this time, which is powered, to be assisted
Permanent magnet a maintains the stability of lower contact assembly, and when separating brake, electromagnet auxiliary permanent magnets a drives together with memory alloy spring
Lower contact assembly moves down realization separating brake, it is ensured that separating brake success.When breaker is maintained at separating brake or "on" position, control
Device control electromagnet power-off.
Embodiment 3
The present embodiment is compared with embodiment 1 or embodiment 2, it is also proposed that following to improve：The lower conducting rod upper end outer wall is consolidated
Surely ceramic guide pipe is arranged with, the lower contact assembly is slidably connected on ceramic guide pipe, in the socket pipe of lower contact assembly
It is connected between lower end and the lower part of lower conducting rod by multiple soft conductive copper wires, conductive copper wire is coil spring shape or wave
Unrestrained wire shaped, and the surface of preferably every conductive copper wire is all enclosed with insulation material layer.
In order to which lower contact assembly is enable swimmingly to be slided along lower conducting rod, the lower conducting rod needs be designed compared with
It is long, 5-10cm is preferably may be designed as, conductive copper wire integrally generates shape to the property of can adapt to when lower contact assembly slides in this way
Become, it is ensured that separating brake, the speed closed a floodgate are not influenced by excessive.
In addition, conductive copper wire may be designed as bellows form, and opening is equidistantly formed in crooked place, to increase shape
Change ability.
Claims (5)
1. a kind of vacuum circuit breaker, it is characterised in that：Include pedestal, be fixedly mounted on the shell of pedestal front upper, it is fixed
3 groups of insulator b of the outer casing back are connected to, insulator b described in every group includes longitudinally disposed two；Positioned at lower section
Insulator b rear ends be fixedly connected with wire outlet seat, the insulator b rear ends being located above are fixedly connected with inlet wire seat；
With the inlet wire seats connecting of insulator b described in every group and being set between wire outlet seat there are one arc-chutes；The arc-chutes include
The porcelain shell of one tubulose, fixed seal connection is in the lower cover of the porcelain shell lower end, and fixed seal connection is in the porcelain shell upper end
Upper cover body, across lower cover and with the lower conducting rod of lower cover fixed seal connection, fixed across upper cover body and with upper cover body
The upper conducting rod being tightly connected；The upper conducting rod lower end forms upper contact head；Sliding sleeve is connected to lower touch on the lower conducting rod
Head assembly；
The lower conducting rod is electrically connected with wire outlet seat fixation, and the upper conducting rod is electrically connected with the fixation of inlet wire seat；
The lower contact assembly includes lower contact and the socket pipe for being integrally attached to lower contact lower end, the socket pipe middle part
Position forms the first contact part, and the lower end of the socket pipe forms the second contact part, is located at first on the socket pipe
The position of contact part and the second contact part circumferentially offers the strip crevice being placed equidistant with, each first contact part, the
Two contact parts are between two adjacent strip crevices；Outside first contact part and the second contact part and the lower conducting rod
Wall is slidably matched electrical connection；
The position of the socket pipe outer wall positioned at the first contact part and the second contact part between, which forms ceramic ring, matches and heals up, the porcelain
There are two semicircular isolation ceramic rings with upper installation of healing up for ring, and the both ends that ceramic ring is isolated are connected with extension respectively, described
Two semicircular silicon steel blocks are arranged with outside isolation ceramic ring, are fixedly connected between two silicon steel blocks by screw, the silicon
Bloom inner wall forms the ceramic ring notch with ceramic ring cooperation positioning is isolated；
The second contact part end forms edge of turning up, and the edge end of turning up upwardly extends, each flanging
Spliced eye is offered in portion；It is located at the second contact part and ceramic ring outside the socket pipe with being arranged with memorial alloy ring between healing up,
The position that the memorial alloy ring lower end corresponds to each spliced eye is connected with deformation arm, the lower end of each deformation arm
It is connected with the plug division with spliced eye cooperation grafting；It is located between two deformation arms on the memorial alloy ring
Position tool there are one gap；The memorial alloy ring is clamped between socket pipe outer wall and the extension that ceramic ring is isolated；
Position of the porcelain shell inner wall between the upper contact head, lower contact has been separately formed locating ring, lower locating ring；
There are one shielding cylinders for position installation in the porcelain shell between upper locating ring, lower locating ring；It is lower fixed to be located in the porcelain shell
Memory alloy spring is installed between position circle and silicon steel block；
The arc-chutes include 3 be arranged in parallel, and 3 arc-chutes are externally provided with drive component；The driving component packet
It includes there are one horizontally disposed rectangular installing plate, the position of corresponding 3 arc-chutes, which offers, on the installing plate goes out
Arc chamber matching hole, the periphery that arc-chutes matching hole is located on the installing plate are fixedly mounted and are useful for the movement of driving silicon steel block forever
Magnet a；Four vertex positions of the installing plate offer the hole that is slidably matched, and each hole that is slidably matched is corresponded on the pedestal
Position is equipped with longitudinally disposed guide rod, and described be slidably matched between hole and guide rod is connected by linear bearing；
The installing plate is connected with riser far from shell one end, and the outer wall of the riser is connected with semiconductor chilling plate, and half
The huyashi-chuuka (cold chinese-style noodles) of conductor cooling piece is fixedly connected with riser, and the hot face of semiconductor chilling plate is fixedly connected with radiating seat, the radiating seat
On be installed with radiator fan；
The position being located on the pedestal between the adjacent wire outlet seat of each two is equipped with permanent magnetic operating component, two permanent magnetism
Pass through two insulator a connections between actuating component and the installing plate；
The permanent magnetic operating component include the external stator that is fixedly mounted on pedestal and with external stator be slidably connected in move
Son；The external stator includes the upper electromagnet for there are one stator casing, being fixedly connected on stator casing internal upper part and fixed company
It is connected on the lower electromagnet of lower part in stator casing；The interior mover is arranged on there are one including between electromagnet and lower electromagnet
Permanent magnet b and be fixedly connected with permanent magnet b and upper and lower end is pierced by the actuating of the aluminum alloy material to except stator casing
Bar；The upper end of the actuating bar is fixedly connected with insulator a lower ends, and the actuating bar lower end forms rack；
Rotation connection is there are one interlocking bar in the horizontal direction in the pedestal, corresponding two permanent magnetic operating components in interlocking bar
Position be fixedly mounted that there are two the transmission gear a that are connected by meshing transmission with rack.
2. a kind of vacuum circuit breaker as described in claim 1, it is characterised in that：The actuating bar upper end and the insulator a
Pressure sensor is also equipped between lower end；The signal input part electricity of controller of the pressure sensor with installation in the shell
Connection, the lower electromagnet, upper electromagnet be electrically connected respectively with the output terminal of controller, the case nose be equipped with close a floodgate by
Button and opening button, the switch knob and opening button are electrically connected respectively with the signal input part of controller；Press combined floodgate by
During button, the upper electromagnet of controller control is generated to be generated and magnetic reversed permanent magnet b with magnetic field in the same direction permanent magnet b, lower electromagnet
, make interior mover that drive component be driven to move up, the permanent magnet a on drive component drives silicon steel block together with entire lower sets of contacts
Part is integrally moved up along lower conducting rod, and lower contact is finally made to be closed with upper contact head；When pressing opening button, under controller control
Electromagnet generates and magnetic field in the same direction permanent magnet b, and upper electromagnet generates and magnetic field reversed permanent magnet b, drives interior mover and drives
Dynamic component moves down, and the permanent magnet a on drive component drives the whole lower contact assembly of silicon steel block connection whole along lower conducting rod
It moves down, lower contact is finally made to be detached with upper contact head；When arc extinguishing indoor temperature is higher than setting value, memory alloy spring, which is heated, to be reached
To phase transition temperature and elongated trend is generated, pressure sensor detects controller control lower electricity when pressure increases up to setting value
Magnet generates and magnetic field in the same direction permanent magnet b, and upper electromagnet generates and magnetic field reversed permanent magnet b, and interior mover is made to drive driving
Component moves down, permanent magnet a on drive component drive the whole lower contact assembly of silicon steel block connection whole along lower conducting rod to
Lower movement, finally makes lower contact be detached with upper contact head.
3. a kind of vacuum circuit breaker as described in claim 1, it is characterised in that：It is located at two transmission gears in the interlocking bar
Position between a is also equipped with gear b, in the pedestal also rotation connection there are one with the vertically disposed manual actuation of interlocking bar
Axis, manual actuation shaft rear end are fixedly connected with the gear c being connected by meshing transmission with the gear b, manual actuation axis front end and bottom
Manual stored energy organization in seat is connected.
4. a kind of vacuum circuit breaker as described in claim 1, it is characterised in that：Each arc-chutes are matched on the installing plate
The periphery for closing hole is installed with the permanent magnet a of 3 or more, and each permanent magnet a is along the circumferentially equidistant arrangement of arc-chutes matching hole.
5. a kind of vacuum circuit breaker as described in claim 1, it is characterised in that：The permanent magnet a surfaces be coated with reflection every
Hot coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610514628.2A CN105931917B (en) | 2016-06-28 | 2016-06-28 | A kind of vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610514628.2A CN105931917B (en) | 2016-06-28 | 2016-06-28 | A kind of vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105931917A CN105931917A (en) | 2016-09-07 |
| CN105931917B true CN105931917B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610514628.2A Active CN105931917B (en) | 2016-06-28 | 2016-06-28 | A kind of vacuum circuit breaker |
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| CN (1) | CN105931917B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455432B (en) * | 2016-10-13 | 2018-12-14 | 哈尔滨工业大学 | A kind of vacuum environment Electromagnetic Control heat-transfer device |
| CN115575027B (en) * | 2022-10-12 | 2023-04-07 | 江苏方天电力技术有限公司 | Power distribution monitoring device based on Internet of things |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2664155Y (en) * | 2003-07-10 | 2004-12-15 | 钟林贵 | Magnetic-coupling linked vacuum switch tube |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007116516A1 (en) * | 2006-04-10 | 2007-10-18 | Mitsubishi Denki Kabushiki Kaisha | Electromagnetic operating device for switch |
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2016
- 2016-06-28 CN CN201610514628.2A patent/CN105931917B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2664155Y (en) * | 2003-07-10 | 2004-12-15 | 钟林贵 | Magnetic-coupling linked vacuum switch tube |
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| CN105931917A (en) | 2016-09-07 |
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Effective date of registration: 20180328 Address after: 523867 Guangdong city of Dongguan province Changan town south south waterfront community Sha Industrial Zone No. 2 Applicant after: Dongguan Zheng Rui Hardware Co., Ltd. Address before: Hangzhou City, Zhejiang province 311115 Pingyao Town, Yuhang District Village village high longevity village 20 group Applicant before: Zhou Luoping |
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Address after: Room 402, 179 Mingzhu Avenue, yong'anzhou Town, Gaogang District, Taizhou City, Jiangsu Province Patentee after: Zhongzhong (Hangzhou) Intellectual Property Operations Co., Ltd. Address before: 311115 Room 725-2, 7th floor, No. 2 Building, Hangzhou Netju E-Commerce Industrial Park, 966 Bottle Cang Avenue, Bottle Yao Town, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: Zhongzhong (Hangzhou) Intellectual Property Operations Co., Ltd. |
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Effective date of registration: 20211213 Address after: 212300 Lingkou Town, Danyang City, Zhenjiang City, Jiangsu Province Patentee after: JIANGSU DANTONG ELECTRIC Co.,Ltd. Address before: Room 402, 179 Mingzhu Avenue, yong'anzhou Town, Gaogang District, Taizhou City, Jiangsu Province Patentee before: Zhongzhong (Hangzhou) Intellectual Property Operations Co.,Ltd. |