CN106057562B - A kind of breaker - Google Patents
A kind of breaker Download PDFInfo
- Publication number
- CN106057562B CN106057562B CN201610516993.7A CN201610516993A CN106057562B CN 106057562 B CN106057562 B CN 106057562B CN 201610516993 A CN201610516993 A CN 201610516993A CN 106057562 B CN106057562 B CN 106057562B
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- China
- Prior art keywords
- contact
- fixedly connected
- housing
- arc
- dynamic iron
- Prior art date
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 34
- 239000012212 insulator Substances 0.000 claims abstract description 20
- 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 9
- 239000000919 ceramic Substances 0.000 claims description 29
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 27
- 229910045601 alloy Inorganic materials 0.000 claims description 18
- 239000000956 alloy Substances 0.000 claims description 18
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 8
- 230000035876 healing Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000007639 printing Methods 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005245 sintering Methods 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
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—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 breakers, include pedestal, are fixedly mounted on the shell of pedestal front upper, are fixedly connected on 3 groups of insulators of the outer casing back, and every group of insulator 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；Arc-chutes are included there are one porcelain shell, and porcelain shell includes arc extinguishing room housing, actuating housing and the connecting tube being integrally attached between arc extinguishing room housing and actuating housing sidewall, and arc extinguishing room housing upper end is connected with upper cover body, and lower end is connected with lower cover；There are one the upper conducting rods for passing through upper cover body for connection in upper cover body, and there are one the lower conducting rods for passing through lower cover for connection on lower cover；The upper conducting rod lower end is fixedly connected with upper contact head；Sliding sleeve is connected to lower contact assembly on lower conducting rod；The dynamic iron core for driving the lower contact assembly is installed in actuating housing.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 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 breaker structure.
Purpose to realize the present invention, is achieved using following technical scheme：A kind of breaker, includes pedestal, Gu
Dingan County is mounted in the shell of pedestal front upper, is fixedly connected on 3 groups of insulators of the outer casing back, insulate attached bag described in every group
Include longitudinally disposed two；Underlying insulator rear end is fixedly connected with wire outlet seat, after the insulator being located above
End is fixedly connected with inlet wire seat；
Arc-chutes there are one being set between the inlet wire seat and wire outlet seat that are connect with insulator described in every group；The arc-chutes include
There are one porcelain shell, the porcelain shell includes the arc extinguishing room housing of the tubulose there are one both ends open, and one is being located at arc extinguishing room housing just
The actuating housing of the upper end closed lower ending opening of lower section and be integrally attached to the arc extinguishing room housing and actuating housing sidewall it
Between two symmetrically arranged connecting tubes；The upper and lower side of the connecting tube is circular assembling nozzle, and fixed connect is sealed on nozzle
It is connected to capping；The upper through-hole of bar shaped, the connecting tube are formed between the connecting tube upper portion side wall and arc-chutes housing sidewall
The lower through-hole of bar shaped is formed between lower sides and actuating housing sidewall；
The arc extinguishing room housing upper end fixed seal connection has upper cover body, the arc extinguishing room housing lower end fixed seal connection
There is lower cover；The upper conducting rod of upper cover body is passed through in the upper cover body there are one fixed seal connections, is fixed on the lower cover
The lower conducting rod of lower cover is passed through there are one being tightly connected；The upper conducting rod lower end is fixedly connected with upper contact head, is led under described
Sliding sleeve is equipped with lower contact assembly on electric pole；
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 arc-chutes inner walls between the upper contact head, lower contact has been separately formed positioning
Circle, lower locating ring；There are one shielding cylinders for position installation in the arc extinguishing room housing between upper locating ring, lower locating ring；
Memory alloy spring is installed between lower locating ring and silicon steel block in the porcelain shell；
Magnet is fixedly connected with above the actuating housing, the actuating housing inner top is installed with upper magnet yoke,
The actuating housing lower end fixed seal connection has lower yoke, and lower magnet is fixedly connected with below the lower yoke；The actuating
Dynamic iron core is slidably fitted between upper magnet yoke, lower yoke in housing, passes through two between the dynamic iron core and the silicon steel block
A connecting rod being set in connecting tube is fixedly linked；
The connecting rod lower end is fixedly connected with lower contact by screw, and the connecting rod upper end is fixedly connected by screw
There is top connection；The connector with top connection cooperation grafting is formed on the silicon steel block, the top connection is consolidated by screw
Surely it is connected on silicon steel block；There are two the connection breach to match with lower contact shape for the dynamic iron core upper end molding, described dynamic
It is fixedly connected between iron core and the lower contact by screw；
The position of corresponding dynamic iron core is equipped with electromagnet coil outside the actuating housing, and electromagnet coil is formed with dynamic iron core
One electromagnet, and the height of electromagnet coil is less than the height of dynamic iron core.
As preferred：The electromagnet coil is electrically connected, and soft with the controller installed inside the shell by soft wire
The part that matter conducting wire is located at outside shell is helical wire form.
As preferred：The porcelain shell fires formation after using 3d printing technology molding blanks.
As preferred：When the lower contact is in "on" position with the upper contact head, between the dynamic iron core and upper magnet yoke
There are the spacing of 0.5-2.0mm.
As preferred：The upper magnet yoke is cylinder, and upper magnet yoke outer wall forms external screw thread, in the actuating upper part of the housing
Wall form with the matched internal thread of the external screw thread of the upper magnet yoke, the internal thread be the tall and big trapezoidal spiral shell in 3.0mm of tooth
Line.
As preferred：The rear block cover there are one rearward openings is fixedly mounted above the base rear portion, is opened up in rear block cover
There is the port passed through for the insulator.
As preferred：At least one porcelain shell outer wall is equipped with temperature sensor, and each temperature sensor passes through conducting wire
It is electrically connected with the controller；When temperature sensor detects that temperature is higher than setting value, controller control electromagnet coil power production
Raw and upper magnet magnetic field in the same direction.
Compared with prior art, the beneficial effects of the invention are as follows：The breaker of the present invention is vacuum circuit breaker, of the invention
Lower conducting rod in the arc-chutes of breaker is designed to the form being fixedly connected with lower cover, is then slided in lower conducting rod upper end
A lower contact assembly is arranged, and silicon steel block is installed on lower contact assembly, silicon steel block connects a dynamic iron core by connecting rod,
Coordinate to drive the upper and lower of lower contact assembly by the electromagnet being made of electromagnet coil and dynamic iron core and upper magnet, lower magnet
It is mobile, so as to fulfill divide-shut brake.
The dynamic iron core is mounted in the actuating housing of porcelain shell, and electromagnet coil is then mounted on outside actuating housing and dynamic iron
The corresponding position of core makes the space in porcelain shell become close to vacuum after the completion of the component assembling in porcelain shell by heating exhaust
State, the upper magnet of heat labile permanent-magnet material, lower magnet are then fixedly installed to the corresponding position on porcelain shell again.Pass through
Such mode so that the component for generating displacement is needed to be all integrated into arc-chutes during divide-shut brake, simplifies vacuum
The structure of breaker eliminates the metal bellows for sealing in this way, 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 and electricity
When magnet driving silicon steel block moves down realization separating brake, memory alloy spring generates downward thrust simultaneously, it is ensured that separating brake success.
Before separating brake, in order to make memory alloy spring elongation at present between contact and upper contact head not because of contact mistake
It is small in addition generate gap and electric arc is caused to occur, therefore pass through controller control electromagnet coil generate with upper magnet magnetic in the same direction
, to increase the thrust that the suction between dynamic iron core and upper magnet yoke temporarily to overcome memory alloy spring, controlled when separating brake
It is reversed with upper magnet that device controls electromagnet coil to generate again, and separating brake is carried out with lower magnet magnetic field in the same direction.
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.
Temperature information outside porcelain shell is obtained by temperature sensor, can the current information that detects of combination current mutual inductor,
The working conditions of arc-chutes is more accurately judged, there are separating brake can be timely and accurately carried out during failure, it is ensured that electricity consumption is set
Standby safe operation.
Description of the drawings
Fig. 1, Fig. 2 are the structure diagrams of the present invention.
Fig. 3, Fig. 4 are the attachment structure schematic diagrams of critical piece of the present invention.
Fig. 5 is arc-chutes and the structure diagram of operating mechanism part.
Fig. 6 is the schematic cross-sectional view of arc-chutes and operating mechanism part.
Fig. 7 is the decomposition texture schematic diagram of arc-chutes and operating mechanism part.
Fig. 8 is the structure diagram of porcelain shell.
Fig. 9 is the schematic cross-sectional view of porcelain shell.
Figure 10 is lower contact assembly and the structure diagram of lower conductive bar part.
Figure 11 is the structure diagram of lower contact assembly.
Figure 12 is the schematic cross-sectional view of lower contact assembly.
Figure 13 is the structure diagram of memorial alloy ring.
1st, pedestal；11st, rear block cover；2nd, shell；31st, wire outlet seat；32nd, inlet wire seat；5th, arc-chutes；51st, lower conducting rod；52、
Porcelain shell；52a, arc extinguishing room housing；52b, connecting tube；52c, actuating housing；5201st, lower locating ring；5202nd, upper locating ring；5203、
Assemble nozzle；5204th, upper through-hole；5205th, lower through-hole；521st, lower cover；522nd, upper cover body；523rd, it covers；53rd, upper conducting rod；
54th, shielding cylinder；55th, lower contact assembly；551st, lower contact；552nd, socket pipe；5521st, the first contact part；5522nd, ceramic ring coordinates
Mouthful；5523rd, the second contact part；5524th, it turns up edge；5525th, spliced eye；56th, memory alloy spring；57th, ceramic ring is isolated；571、
Extension；58th, silicon steel block；581st, ceramic ring notch；582nd, connector；59th, memorial alloy ring；591st, gap；592nd, deformation
Arm；593rd, plug division；6th, insulator；7th, electromagnet coil；71st, upper magnet；72nd, lower yoke；73rd, lower magnet；74th, upper magnet yoke；
75th, dynamic iron core；751st, connection breach；76th, connecting rod；761st, lower contact；762nd, top connection.
Specific embodiment
Embodiment 1
According to Fig. 1 to Figure 13, the present embodiment is a kind of breaker, includes pedestal 1, is fixedly mounted on pedestal forepart
The shell 2 of top is fixedly connected on 3 groups of insulators 6 of the outer casing back, and insulator described in every group includes longitudinally disposed
Two；Underlying insulator rear end is fixedly connected with wire outlet seat 31, and the insulator rear end being located above is fixedly connected with
Inlet wire seat 32.
Arc-chutes 5 there are one being set between the inlet wire seat and wire outlet seat that are connect with insulator described in every group；The arc-chutes packet
It includes there are one porcelain shell 52, the porcelain shell includes the arc extinguishing room housing 52a of the tubulose there are one both ends open, and one is located at arc-chutes
The actuating housing 52c of upper end closed lower ending opening immediately below housing and it is integrally attached to the arc extinguishing room housing and actuating
Two symmetrically arranged connecting tube 52b between housing sidewall；The upper and lower side of the connecting tube is circular assembling nozzle 5203,
Being sealedly and fixedly connected on nozzle has capping 523；Bar shaped is formed between the connecting tube upper portion side wall and arc-chutes housing sidewall
Upper through-hole 5204, the lower through-hole 5205 of bar shaped is formed between the connecting tube lower sides and actuating housing sidewall.
The arc extinguishing room housing upper end fixed seal connection has upper cover body 522, the arc extinguishing room housing lower end fixing seal
It is connected with lower cover 521；There are one the upper conducting rod 53 for passing through upper cover body, the lower covers for fixed seal connection in the upper cover body
There are one the lower conducting rods 51 for passing through lower cover for fixed seal connection on body；The upper conducting rod lower end, which is fixedly connected with, touches
Head, sliding sleeve is equipped with lower contact assembly 55 on the lower conducting rod.
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 arc-chutes inner walls between the upper contact head, lower contact has been separately formed locating ring
5202nd, lower locating ring 5201；There are one shield for position installation in the arc extinguishing room housing between upper locating ring, lower locating ring
Cover cylinder 54；Memory alloy spring 56 is installed between lower locating ring and silicon steel block in the porcelain shell.
Magnet 71 is fixedly connected with above the actuating housing, the actuating housing inner top is installed with upper magnet yoke
74, the actuating housing lower end fixed seal connection has lower yoke 72, and lower magnet 73 is fixedly connected with below the lower yoke；Institute
State and be slidably fitted with dynamic iron core 75 in actuating housing positioned at upper magnet yoke, lower yoke between, the dynamic iron core and the silicon steel block it
Between be fixedly linked by two connecting rods being set in connecting tube 76.
The connecting rod lower end is fixedly connected with lower contact 761 by screw, and the connecting rod upper end is fixed by screw
It is connected with top connection 762；The connector 582 with top connection cooperation grafting, the top connection are formed on the silicon steel block
It is fixedly connected on silicon steel block by screw；The connection that there are two the dynamic iron core upper end moldings matches with lower contact shape to lack
Mouth 751, is fixedly connected between the dynamic iron core and the lower contact by screw.
The connecting rod reconnects connector, lower contact later in connecting tube is fitted into, and the bore of such connecting tube can be done
Must be smaller, conducive to the intensity of porcelain shell entirety is ensured.Each capping of connection tube end is installed again after in connecting rod, installation is complete.
The position of corresponding dynamic iron core is equipped with electromagnet coil 7, electromagnet coil and dynamic iron core structure outside the actuating housing
Into an electromagnet, and the height of electromagnet coil is less than the height of dynamic iron core.
The electromagnet coil is electrically connected, and soft wire is located at the controller installed inside the shell by soft wire
Part outside shell is helical wire form.
The porcelain shell fires formation after using 3d printing technology molding blanks.Porcelain shell structure is complex, is printed using 3d
Mode, which makes, can ensure preferable dimensional accuracy and uniform density, it is ensured that the integral strength of porcelain shell after sintering.
When the lower contact is in "on" position with the upper contact head, there are 0.5- between the dynamic iron core and upper magnet yoke
The spacing of 2.0mm.Apply a contact between upper contact head, lower contact using the magnetic force between dynamic iron core and upper magnet yoke,
Ensure good electric conductivity.
The upper magnet yoke is cylinder, and upper magnet yoke outer wall forms external screw thread, and actuating upper part of the housing inner wall forms
With the matched internal thread of external screw thread of the upper magnet yoke, the internal thread is the tall and big trapezoidal thread in 3.0mm of tooth.Upper magnet yoke
In actuating housing and to continue stress, therefore heat-resistant adhesive is reused after being connected through a screw thread and is further fixed, it is ensured that peace
Fill firmness.
The rear block cover 11 there are one rearward openings is fixedly mounted above the base rear portion, is offered described in confession in rear block cover
The port that insulator passes through.
At least one porcelain shell outer wall is equipped with temperature sensor, and each temperature sensor passes through conducting wire and controller electricity
Connection；When temperature sensor detects that temperature is higher than setting value, controller control electromagnet coil power generates and upper magnet
Magnetic field in the same direction.
For vacuum circuit breaker, the lower conducting rod in the arc-chutes of breaker of the present invention is designed to under the breaker of the present invention
Then the form that cover is fixedly connected is slided in lower conducting rod upper end and is arranged a lower contact assembly, and on lower contact assembly
Silicon steel block is installed, silicon steel block connects a dynamic iron core by connecting rod, passes through the electromagnetism being made of electromagnet coil and dynamic iron core
Iron coordinates to drive moving up and down for lower contact assembly with upper magnet, lower magnet, so as to fulfill divide-shut brake.
The dynamic iron core is mounted in the actuating housing of porcelain shell, and electromagnet coil is then mounted on outside actuating housing and dynamic iron
The corresponding position of core makes the space in porcelain shell become close to vacuum after the completion of the component assembling in porcelain shell by heating exhaust
State, the upper magnet of heat labile permanent-magnet material, lower magnet are then fixedly installed to the corresponding position on porcelain shell again.Pass through
Such mode so that the component for generating displacement is needed to be all integrated into arc-chutes during divide-shut brake, simplifies vacuum
The structure of breaker eliminates the metal bellows for sealing in this way, 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 and electricity
When magnet driving silicon steel block moves down realization separating brake, memory alloy spring generates downward thrust simultaneously, it is ensured that separating brake success.
Before separating brake, in order to make memory alloy spring elongation at present between contact and upper contact head not because of contact mistake
It is small in addition generate gap and electric arc is caused to occur, therefore pass through controller control electromagnet coil generate with upper magnet magnetic in the same direction
, to increase the thrust that the suction between dynamic iron core and upper magnet yoke temporarily to overcome memory alloy spring, controlled when separating brake
It is reversed with upper magnet that device controls electromagnet coil to generate again, and separating brake is carried out with lower magnet magnetic field in the same direction.
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.
Temperature information outside porcelain shell is obtained by temperature sensor, can the current information that detects of combination current mutual inductor,
The working conditions of arc-chutes is more accurately judged, there are separating brake can be timely and accurately carried out during failure, it is ensured that electricity consumption is set
Standby safe operation.
The operation principle of the present invention is as follows：When breaker enters "on" position by gate-dividing state, controller is to electromagnetism iron wire
Circle be powered, make electromagnet coil generate with upper magnet in the same direction, with the reversed magnetic field of lower magnet, dynamic iron core upper magnet suction and
It is moved up under the repulsion effect of lower magnet, the lower contact assembly being connected by connecting rod with dynamic iron core, which moves up, makes lower contact
It with upper contact head contact closure, realizes and closes a floodgate, electromagnet coil powers off after combined floodgate, and dynamic iron core relies on its magneticaction with upper magnet
It is maintained at settling position.If the current transformer that temperature sensor detects that temperature is excessively high or is electrically connected with the controller detects
When electric current is close to separating brake setting value, in order to ensure upper contact head and the good contact of lower contact, controller control electromagnet coil production
It is raw to increase the attraction between dynamic iron core and upper magnet with upper magnet magnetic field in the same direction, so as to increase upper contact head and lower contact it
Between contact, reduce resistance value, avoid upper contact head, lower contact overheat.When temperature sensor detect temperature it is excessively high or
The current transformer being electrically connected with the controller is detected when electric current reaches separating brake setting value or controller receives separating brake order
When, controller control electromagnet coil generates, with lower magnet in the same direction magnetic field reversed with upper magnet, and dynamic iron core drives lower sets of contacts
Part moves down realization sub-switching operation.
Embodiment 2
The present embodiment is compared with Example 1, it is also proposed that following to improve：The second contact part and lower conduction in lower contact assembly
Ripple contact tube is connected between the lower end of bar, and opening is equidistantly formed in ripple contact tube crooked place, to increase shape
Change ability.
Since contact assembly lower in embodiment 1 is slidably connected on lower conducting rod, in separating brake, the first contact part, second touch
Since friction is likely to occur electric spark between head and lower conducting rod, such contact surface will appear damage, be unfavorable for repeatedly dividing
It closes a floodgate.Ripple contact tube plays the role of shunting, makes the first contact part, the second contact under the premise of unobvious generate resistance
There is not electric arc between portion and lower conducting rod, ensure the service life of arc-chutes.
Claims (7)
1. a kind of breaker, it is characterised in that：Include pedestal, be fixedly mounted on the shell of pedestal front upper, be fixedly connected
In 3 groups of insulators of the outer casing back, insulator described in every group includes longitudinally disposed two；Underlying insulation
Sub- rear end is fixedly connected with wire outlet seat, and the insulator rear end being located above is fixedly connected with inlet wire seat；
Arc-chutes there are one being set between the inlet wire seat and wire outlet seat that are connect with insulator described in every group；The arc-chutes include one
A porcelain shell, the porcelain shell include the arc extinguishing room housing of the tubulose there are one both ends open, and one is located at immediately below arc extinguishing room housing
Upper end closed lower ending opening actuating housing and be integrally attached between the arc extinguishing room housing and actuating housing sidewall
Two symmetrically arranged connecting tubes；The upper and lower side of the connecting tube is circular assembling nozzle, and being sealedly and fixedly connected on nozzle has
Capping；The upper through-hole of bar shaped, the connecting tube lower part are formed between the connecting tube upper portion side wall and arc-chutes housing sidewall
The lower through-hole of bar shaped is formed between side wall and actuating housing sidewall；
Under the arc extinguishing room housing upper end fixed seal connection has upper cover body, the arc extinguishing room housing lower end fixed seal connection to have
Cover；Fixed seal connection is there are one the upper conducting rod for passing through upper cover body in the upper cover body, fixing seal on the lower cover
There are one the lower conducting rods for passing through lower cover for connection；The upper conducting rod lower end is fixedly connected with upper contact head, the lower conducting rod
Upper sliding sleeve is equipped with 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 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 arc-chutes inner walls between the upper contact head, lower contact has been separately formed locating ring and lower fixed
Position circle；There are one shielding cylinders for position installation in the arc extinguishing room housing between upper locating ring, lower locating ring；The porcelain shell
It is interior that memory alloy spring is installed between lower locating ring and silicon steel block；
Magnet is fixedly connected with above the actuating housing, the actuating housing inner top is installed with upper magnet yoke, described
The lower end fixed seal connection of actuating housing has lower yoke, and lower magnet is fixedly connected with below the lower yoke；The actuating housing
It is interior that dynamic iron core is slidably fitted between upper magnet yoke, lower yoke, it is set between the dynamic iron core and the silicon steel block by two
The connecting rod being placed in connecting tube is fixedly linked；
The connecting rod lower end is fixedly connected with lower contact by screw, and the connecting rod upper end is fixedly connected with by screw
Connector；The connector with top connection cooperation grafting is formed on the silicon steel block, the top connection is fixed by screw to be connected
It is connected on silicon steel block；There are two the connection breach to match with lower contact shape, the dynamic iron cores for the dynamic iron core upper end molding
It is fixedly connected between the lower contact by screw；
The position of corresponding dynamic iron core is equipped with electromagnet coil outside the actuating housing, and electromagnet coil forms one with dynamic iron core
Electromagnet, and the height of electromagnet coil is less than the height of dynamic iron core.
2. a kind of breaker as described in claim 1, it is characterised in that：Control of the electromagnet coil with installation inside the shell
Device processed is electrically connected by soft wire, and the part that soft wire is located at outside shell is helical wire form.
3. a kind of breaker as described in claim 1, it is characterised in that：After the porcelain shell uses 3d printing technology molding blanks
It fires and is formed.
4. a kind of breaker as described in claim 1, it is characterised in that：The lower contact is in combined floodgate shape with the upper contact head
During state, there are the spacing of 0.5-2.0mm between the dynamic iron core and upper magnet yoke.
5. a kind of breaker as described in claim 1, it is characterised in that：The upper magnet yoke is cylinder, upper magnet yoke outer wall into
Type has an external screw thread, actuating upper part of the housing inner wall form with the matched internal thread of the external screw thread of the upper magnet yoke, it is described
Internal thread is the tall and big trapezoidal thread in 3.0mm of tooth.
6. a kind of breaker as described in claim 1, it is characterised in that：It is fixedly mounted there are one after above the base rear portion
The rear block cover being just open offers the port passed through for the insulator in rear block cover.
7. a kind of breaker as described in claim 1, it is characterised in that：At least one porcelain shell outer wall is equipped with temperature biography
Sensor, each temperature sensor are electrically connected with the controller by conducting wire；When temperature sensor detects that temperature is higher than setting value,
Controller control electromagnet coil power generates and upper magnet magnetic field in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610516993.7A CN106057562B (en) | 2016-06-28 | 2016-06-28 | A kind of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610516993.7A CN106057562B (en) | 2016-06-28 | 2016-06-28 | A kind of breaker |
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| Publication Number | Publication Date |
|---|---|
| CN106057562A CN106057562A (en) | 2016-10-26 |
| CN106057562B true CN106057562B (en) | 2018-06-29 |
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| CN201610516993.7A Active CN106057562B (en) | 2016-06-28 | 2016-06-28 | A kind of breaker |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204289246U (en) * | 2014-12-02 | 2015-04-22 | 沈阳工业大学 | A kind of vacuum interrupter of subsidiary operating mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101011889B1 (en) * | 2006-04-10 | 2011-02-01 | 미쓰비시덴키 가부시키가이샤 | Electromagnetic operating device for switch |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204289246U (en) * | 2014-12-02 | 2015-04-22 | 沈阳工业大学 | A kind of vacuum interrupter of subsidiary operating mechanism |
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| CN106057562A (en) | 2016-10-26 |
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Effective date of registration: 20180328 Address after: No. 10, No. 10, Jin Ming international industrial mould City, No. 10, Jin Ming, Changan Town, Dongguan, Guangdong Province, No. 10 Applicant after: Dongguan seate metal products 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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Effective date of registration: 20190527 Address after: 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 after: China (Hangzhou) Intellectual Property Operation Co., Ltd. Address before: 523872 No. 10, 22 Building, Jinming International Industrial Mold City, 33 Fuxing Road, Xiagang Community, Chang'an Town, Dongguan City, Guangdong Province Patentee before: Dongguan seate metal products Co., Ltd. |
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Effective date of registration: 20200508 Address after: 223001, 16, Wangwang Road, Qinghe New District, Jiangsu, Huaian Patentee after: JIANGSU SUYI ELECTRICAL APPLIANCE 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. |