CN105810495B - Direct acting type three-stations load switch - Google Patents
Direct acting type three-stations load switch Download PDFInfo
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- CN105810495B CN105810495B CN201610270015.9A CN201610270015A CN105810495B CN 105810495 B CN105810495 B CN 105810495B CN 201610270015 A CN201610270015 A CN 201610270015A CN 105810495 B CN105810495 B CN 105810495B
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- load switch
- pole
- moving contact
- outlet
- conductive
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
-
- 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
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
It is ground connection aluminum alloy casing that the direct acting type three-stations load switch of the present invention, which uses single-phase separation structure, shell, realizes that the grounding shell in product operational process is tangible, not affected by environment, non-maintaining, high safety and reliability；The phase insulation problem of traditional on-load switch is converted to Insulation Problems relatively by the linear type three-stations load switch of single-phase arrangement simultaneously, and insulation gas consumption is less；Linear type three-stations load switch uses straight line arrangement, on-load switch is arranged at one end, earthing switch is arranged in the other end, has the function of three stations of combined floodgate, separating brake and ground connection, and the same operating mechanism is successively performed, interlocking fit is simple, reliability is high, and overall volume is smaller, solves that voltage levels on-load switch appearance and size is big, mold manufacturing is difficult, a series of problems, such as inconvenience is safeguarded in installation, and opposite earth fault is easy to be extended to phase insulation failure.
Description
Technical field
The present invention relates to a kind of direct acting type three-stations load switch, are applied to high-voltage switch gear electrical equipment.
Background technology
On-load switch is a kind of switchgear with simple arc-control device, can be in circuit normal running conditions ShiShimonoseki
Conjunction, carrying and drop-out current, and in defined exceptional condition（Such as short circuit）Under, opening for abnormal current is carried at the appointed time
Close device.In engineering actual motion, on-load switch is the main building block of middle pressure ring net complete set of equipments, and as country is to electricity
The requirement of the looped network controller switching equipment of power supply-distribution system is continuously improved in net, and the dosage of ring main unit is increasing；While ring main unit
Applied voltage grade is also higher and higher, develops to 40.5 kilovoltage grades in particular with ring main unit product, in order to meet absolutely
The phase insulation distance of edge performance requirement, on-load switch also becomes much larger.Gas-insulated and arc extinguishing load are used currently on the market
Switch is mostly that three-phase is assemblied in the integral structure in a shell, and on the one hand cast manufacture mould volume becomes very big, insulation
The gas consumption of gas is also very more, and assembly and manufacturing process are more complicated；On the other hand three-phase integrated on-load switch structure is worked as
Cause to be easy to be extended to phase-to phase fault when single-phase fault, fault harm degree will be extended；And traditional gas-insulated is negative
Lotus switchs outer surface and is easy by air, dust corrosive effect, and maintenance personnel need to carry out periodic maintenance cleaning to outer surface, otherwise,
It is be easy to cause the insulation degradation of equipment, causes accident；There is the load using epoxy resin sealing vacuum interrupter currently on the market
Switch, although such structural volume is become smaller, this kind of on-load switch is limited to the structural shape of vacuum interrupter, Zhi Nengman
The two station states requirement of sufficient switch closing and switch opening, in engineering operation, if on-load switch requires have combined floodgate, separating brake, connect
Three stations on ground, it is also necessary to which the individual gas-insulating type earthing switch of matching design leads to the overall structure of switchgear in this way
Complex, volume is larger, and the interlocking fit between on-load switch and earthing switch is cumbersome.
Invention content
The technical problem to be solved by the invention is to provide a kind of direct acting type three-stations load switch, can solve well
Certainly voltage levels on-load switch appearance and size is big, mold manufacturing is difficult, and installation safeguards that inconvenience, opposite earth fault are easy to expand
A series of problems, such as transforming into phase insulation failure, while requiring simple in structure, easy for installation, reliable, split-phase arrangement, insulation
Dependable performance and consumption of materials is low, can ensure that the safety of Operation and Maintenance personnel.
The direct acting type three-stations load switch of the present invention includes ontology, operating mechanism, mounting bracket, ontology, operation machine
Structure is fixedly mounted in mounting bracket；Body housing is tubular construction, and rear and front end is closed by inlet wire pole, capping respectively, interior
Portion by piston plate, guide holder, outlet pole, be divided into tetra- air cavitys of I, II, III, IV, piston plate has the ventilation of front and back perforation
Hole, air cavity I, II are interconnected；Inlet wire pole is provided with static contact, and piston plate is provided with moving contact component, the setting of outlet pole
There is conductive seat as Interposer contact, capping is provided with grounding contact；It is installed with insulated tension pole on rear side of moving contact component, is insulated
Pull rod sequentially pass through guide holder, the Interposer contact of outlet pole, capping grounding contact after connect with operating mechanism, and can be by
Operating mechanism driving is axially translated；There are three operating position, closing position, separating brakes for the direct acting type three-stations load switch tool
Position and earthing position, in closing position, moving contact is connected with the direct grafting of static contact, and moving contact, Interposer contact pass through exhausted
The conductive loop bar of edge pull rod leading portion is connected, and grounding contact, Interposer contact disconnect；In open position, moving contact, static contact are disconnected
It opens, grounding contact, Interposer contact also disconnect；In earthing position, static contact, moving contact disconnect, between moving contact, grounding contact
It is connected by conductive loop bar.
The shell is metal material, by the first segment shell of fixed inlet wire pole, second segment shell, fixed outlet pole
Third section shell and capping form, the cylindrical outer casing of each section of achievable grounding function that is composed of a fixed connection by ring flange.
The inlet wire pole includes inlet wire cable cone, inlet wire conductor, static contact shielding case, pressure release passage, inlet wire conductor warp
Poured with epoxy resin is inlet wire cable cone connecing first segment enclosure, the epoxy resin after moulding by casting；Inlet wire conductor is
Conductor material with right-angle structure is made, and horizontal position end is equipped with static contact and static contact shielding case, static contact shielding case
It can horizontally slip in an axial direction, inside is additionally provided with resetting spring；Pressure release passage is provided on inlet wire pole, pressure release passage has
The wall of thinner thickness.
Moving contact component is installed on piston plate centre, and moving contact component inside and rear end all have the logical of front and back perforation
Stomata, is provided with the guide ring of loop configuration between piston plate periphery and grounding shell inner wall, left side is provided with moving contact shielding
Cover cover is loaded on outside moving contact component, and is provided with spout.
The guide holder is provided centrally with catch jacket, and catch jacket rear inside has restriction protrusion, conductive seat leading portion appearance
There is limiting slot, catch jacket inner side limiting-position protrusion can be caught in restricted guidance seat in the limiting slot of conductive seat outer surface and move in face；Claw
Guideway is provided in set, there is tapered slope and the claw inner surface of catch jacket back segment to coordinate, be oriented to for guideway rear end
Axle sleeve tapered slope can strut the claw of catch jacket back segment so that catch jacket inner side limiting-position protrusion can be upwardly separated from outside conductive seat
Surface limiting slot；Be set with resetting spring between guideway and conductive loop bar, resetting spring both ends by guideway on the inside of
Step and the limit of conductive seat front end；Cycle spring is additionally provided between catch jacket and guideway, cycle spring both ends are by being oriented to
Step limit in the step and catch jacket of axle sleeve front end outer side；Limited block is installed on conductive loop bar, on conductive loop bar
Limited block can be driven to push guide holder axially translated, leading for loop configuration is provided between guide holder periphery and outer casing inner wall
Xiang Huan.
The outlet pole includes outlet cable cone, conductive seat, outlet conductor, and conductive seat, outlet conductor are by asphalt mixtures modified by epoxy resin
Fat is bored in moulding by casting in third section shell for outlet cable；Conductive seat is set to the centre of third section shell, leading portion tool
There is sleeve shaped structure to forward extend out outlet cable cone；Guideway, catch jacket are set in the sleeve shaped structure of conductive seat leading portion.
The cap central position is equipped with grounding contact, has venthole, back-end closure inside grounding contact；Capping is outer
Side is additionally provided with outlet and is separately connected enclosed valve, earthing bar.
The insulated tension pole leading portion is provided with conductive loop bar and is fixedly connected with moving contact component, and back segment is provided with pull rod and behaviour
Make mechanism connection, is additionally provided with watchband-shaped contactor and is installed between the sleeve shaped structure of conductive seat leading portion and conductive loop bar；Conductive sleeve
There is hollow structure to interconnect to form air vent channel for bar, insulated tension pole, pull rod, also have on bar wall stomata and body interior I,
Tetra- air cavitys of II, III, IV communicate, and air vent channel front end is connected to moving contact component venthole, back-end closure.
Insulation gas filled with one of sulfur hexafluoride, drying nitrogen in tetra- air cavitys of the ontology 1 inside I, II, III, IV
Body；Pass through the air vent channel and piston plate, moving contact component, grounding contact above insulated tension pole, conductive loop bar between air cavity
Venthole form interconnected air cavity, piston plate, guide holder under insulated tension pole drive it is axially translated can change I,
II, III air cavity volume size.
The mounting bracket includes mounting plate, girder, axle bed, fixed plate, and mounting plate, girder, axle bed, fixed plate are mutual
Mutually it is fixedly connected.
The direct acting type three-stations load switch of the present invention, simple in structure, easy for installation, reliable, single-phase arrangement, very well
Ground solves that voltage levels on-load switch appearance and size is big, mold manufacturing is difficult, and inconvenient, opposite earth fault is safeguarded in installation
A series of problems, such as being easy to be extended to phase insulation failure；Linear type three-stations load switch is three-phase split-phase arrangement, outside
Shell is ground connection aluminum alloy casing, realizes that the grounding shell in product operational process is tangible, not affected by environment, non-maintaining, peace
Full reliability is high；The linear type three-stations load switch of single-phase arrangement converts the phase insulation problem of traditional on-load switch simultaneously
At Insulation Problems relatively so that Insulation Problems are easier to solve, and insulation gas consumption is less；Linear type three-stations load switch
Using straight line arrangement, on-load switch arranges that earthing switch is arranged in the other end at one end, has combined floodgate, separating brake and ground connection
Three station functions, and be successively performed by same pull rod, operating mechanism, interlocking fit is simple, and reliability is high, overall volume compared with
It is small.Direct acting type three-stations load switch forms four interconnected air cavitys by its grounding shell and its content element；Institute
Air cavity is stated as the movement of pull rod forms the air cavity that volume size is varied as desired in；Filled with sulfur hexafluoride gas in the air cavity
Body or similar insulating gas are reliable as insulation and arc-extinguishing medium, arc extinction performance.
Description of the drawings
Fig. 1 is the vertical view of the direct acting type three-stations load switch of the present invention；
Fig. 2 is the front view of the direct acting type three-stations load switch of the present invention；
Fig. 3 is sectional view when the direct acting type three-stations load switch of the present invention is in closing position；
Fig. 4 is sectional view when the direct acting type three-stations load switch of the present invention is in open position；
Fig. 5 is sectional view when the direct acting type three-stations load switch of the present invention is in earthing position；
Fig. 6 is broken section enlarged drawing when the direct acting type three-stations load switch of the present invention is in closing position；
Fig. 7 is broken section enlarged drawing when the direct acting type three-stations load switch of the present invention is in open position；
Fig. 8 is broken section enlarged drawing when the direct acting type three-stations load switch of the present invention is in earthing position.
In figure：
1, ontology 2, operating mechanism 3, mounting bracket 4, inlet wire pole 6, outlet pole 7, capping 13, insulated tension pole
14, earthing bar 15, enclosed valve 31, mounting plate 32, girder 33, axle bed 34, fixed plate 41, inlet wire cable cone 42, into
Line conductor 44, static contact shielding case 45, pressure release passage 52, piston plate 54, moving contact shielding case 55, moving contact component
61, conductive seat 62, outlet cable cone 63, outlet conductor 73, grounding contact 131, conductive loop bar 133, pull rod 135, table
Band fingertip 161, guide holder 163, guideway 164, catch jacket 165, resetting spring 166, limited block.
Specific implementation mode
As shown, a kind of direct acting type three-stations load switch, includes ontology 1, operating mechanism 2, mounting bracket 3, sheet
Body 1, operating mechanism 2 are fixedly mounted in mounting bracket 3；1 shell of ontology is tubular construction, and rear and front end is respectively by inlet wire pole
4, capping 7 closing, inside by piston plate 52, guide holder 161, outlet pole 6, be divided into tetra- air cavitys of I, II, III, IV, piston
Plate 52 has the venthole of front and back perforation, and air cavity I, II are interconnected；Inlet wire pole 4 is provided with static contact, and piston plate 52 is arranged
There are moving contact component 55, outlet pole 6 to be provided with conductive seat 61 and Interposer contact, capping 7 is used as to be provided with grounding contact 73；It is dynamic to touch
55 rear side of head assembly is installed with insulated tension pole 13, and insulated tension pole 13 sequentially passes through the centre of guide holder 161, outlet pole 6
Contact is connect after covering 7 grounding contact with operating mechanism, and can be driven by operating mechanism axially translated；The direct acting
There are three operating position, closing position, open position and earthing positions to be moved in closing position for type three-stations load switch tool
Contact is connected with the direct grafting of static contact, and moving contact, Interposer contact are connected by the conductive loop bar 131 of 13 leading portion of insulated tension pole,
Grounding contact, Interposer contact disconnect；In open position, moving contact, static contact disconnect, and grounding contact, Interposer contact also disconnect；
In earthing position, static contact, moving contact disconnect, and are connected by conductive loop bar 131 between moving contact, grounding contact.
The shell is metal material, by the first segment shell of fixed inlet wire pole 4, second segment shell, fixed outlet pole
7 composition of third section shell and capping of column 6, each section is composed of a fixed connection by ring flange outside the tubular of achievable grounding function
Shell.
The inlet wire pole 4 includes that inlet wire cable bores 41, inlet wire conductor 42, static contact shielding case 44, pressure release passage 45, into
Line conductor 42 is inlet wire cable cone connecing first segment enclosure, the epoxy resin after moulding by casting through poured with epoxy resin
41；Inlet wire conductor 42 is made of the conductor material with right-angle structure, and horizontal position end is shielded equipped with static contact and static contact
Cover 44, static contact shielding case 44 can horizontally slip in an axial direction, and inside is additionally provided with resetting spring；There is setting on inlet wire pole 4
Pressure release passage 45, pressure release passage 45 have the wall of thinner thickness.
The moving contact component 55 is installed on 52 centre of piston plate, before 55 inside of moving contact component and rear end all have
The venthole penetrated through afterwards is provided with the guide ring of loop configuration between 52 periphery of piston plate and outer casing inner wall, left side is provided with dynamic
The cover of contact shield cover 54 is loaded on outside moving contact component 55, and is provided with spout.
The guide holder 161 is provided centrally with catch jacket 164, and 164 rear inside of catch jacket has restriction protrusion, conductive seat
There is limiting slot, 164 inner side limiting-position protrusion of catch jacket can be caught in limitation in 61 outer surface limiting slot of conductive seat for 61 leading portion outer surfaces
Guide holder moves；Guideway 163 is provided in catch jacket 164, after 163 rear end of guideway has tapered slope and catch jacket
The claw inner surface at end coordinates, and 163 tapered slope of guideway can strut the claw of catch jacket rear end so that catch jacket 164
Inner side limiting-position protrusion can be upwardly separated from 61 outer surface limiting slot of conductive seat；It is set between guideway 163 and conductive loop bar 131
Resetting spring 165,165 both ends of resetting spring are limited by the step and 61 front end of conductive seat of 163 inside of guideway；Catch jacket and
Be additionally provided with cycle spring between guideway, cycle spring both ends by 163 front end outer side of guideway step and catch jacket
Interior step limit；It is installed with limited block 166 on conductive loop bar 131, limited block 166 can be driven on conductive loop bar 131
It pushes guide holder axially translated, the guide ring of loop configuration is provided between 161 periphery of guide holder and outer casing inner wall.
The outlet pole 6 includes outlet cable cone 62, conductive seat 61, outlet conductor 63, conductive seat 61, outlet conductor
63 bore 62 in moulding by casting in third section shell by epoxy resin for outlet cable；Conductive seat 61 is set in third section shell
There is sleeve shaped structure to forward extend out outlet cable cone 62 for center portion position, leading portion；Guideway 163, catch jacket 164 are set in conduction
The sleeve shaped structure of 61 leading portions of seat.
7 centres of the capping are equipped with grounding contact 73, have venthole, back-end closure inside grounding contact；Envelope
7 outside of lid is additionally provided with outlet and is separately connected enclosed valve 15, earthing bar 14.
13 leading portion of the insulated tension pole is provided with conductive loop bar 131 and is fixedly connected with moving contact component 55, and back segment is provided with
Pull rod 133 is connect with operating mechanism, is additionally provided with sleeve shaped structure and conduction that watchband-shaped contactor 135 is installed in 61 leading portion of conductive seat
Between loop bar 131；There is hollow structure to interconnect to form air vent channel for conductive loop bar 131, insulated tension pole 13, pull rod 133, bar
Also there is stomata to be communicated with ontology tetra- air cavitys of 1 inside I, II, III, IV on wall, air vent channel front end is logical with moving contact component 55
Stomata is connected to, back-end closure.
Insulation gas filled with one of sulfur hexafluoride, drying nitrogen in tetra- air cavitys of the ontology 1 inside I, II, III, IV
Body；Between air cavity by air vent channel above insulated tension pole 13, conductive loop bar 131 and piston plate 52, moving contact component 55,
The venthole of grounding contact forms interconnected air cavity, piston plate 52, guide holder 161 under the drive of insulated tension pole 13 in an axial direction
Translation can change I, II, III air cavity volume size.
The mounting bracket 3 includes mounting plate 31, girder 32, axle bed 33, fixed plate 34, mounting plate 31, girder 32,
Axle bed 33,34 connection fastened to each other of fixed plate.
The ontology 1 can realize rapid abutting joint by inlet wire pole 4, outlet pole 6 with other electrical equipments, and by connecing
Ground row 14 carries out grounding connection when ground connection station；The ontology 1 can not only meet the straight of the present invention by enclosed valve 15
Inflation needs are vacuumized in ejector half three-stations load switch assembling process, can also provide installation interface for operational monitoring instrument.
The direct acting type three-stations load switch embodiment of the present invention, when on-load switch is in closing position shown in Fig. 3,
Between inlet wire pole 4, outlet pole 6 constitute electrical connection circuit, electric current from the inlet wire conductor 42 of inlet wire pole 4 entrance after, according to
Secondary to flow through moving contact component 55, watchband-shaped contactor 135, conductive seat 61, most the outlet conductor 63 through outlet pole 6 flows out afterwards, can be with
Meet the current-carrying job requirement of on-load switch.
It is described first from Fig. 3 closing positions to each mechanism action process of Fig. 4 open positions：In closing position, machine is operated
The actuating unit of structure 2 has been that the energy-stored spring energy storage of executing agency finishes；When being connected to separating brake instruction, energy-stored spring releases energy
Drive output shaft on output toggle arm quickly rotate counterclockwise, output toggle arm traction lower body 1 pull rod 133 to
Right high-speed motion in figure, and pull piston plate 52 and moving contact component 55 while moving right, moving contact component 55 with into
The inlet wire conductor 42 of line pole 4 detaches, and the release of 44 internal reset spring of static contact shielding case pushes static contact shielding case 44 to reset；
The moment of current-carrying part separation may will produce electric arc, and for piston plate 52 during moving right, the volume of air cavity II can quilt
Compression, the spout and moving contact component inner vent hole of a part of driven contact shield cover of gas 54, which spray, carries out arc extinguishing, one
Divide and is sprayed from 52 venthole of piston plate outside spout.The release of gas is to air cavity I in air cavity II, and the volume of air cavity I expands, drop
Low operating mechanism drives insulated tension pole 13 to move required operating work, improves the opening velocity of on-load switch, is conducive to
The extinguishing of electric arc；Direct acting type three-stations load switch of the invention is in open position shown in Fig. 4 at this time, and inlet wire pole 4 goes out
It is electrically disconnected between line pole 6；Electrical off-state is also between outlet pole 6 and earthing bar 14.
Secondly from Fig. 4 open positions to each mechanism action process of Fig. 5 earthing positions：The actuating unit of operating mechanism 2 continues
Work, energy-stored spring be in original state, end along groove sliding, pushing drawing rod 133 under the driving of operating mechanism slowly to
Right movement as shown in the figure, under the drive of conductive loop bar 131, piston plate 52 and components all thereon move right together,
It is contacted first with the limited block 166 on guide holder 16, and limited block 166 is pushed to squeeze guideway 163, guideway to the right
163 open-top catch jackets 164 continue to continue the outside that movement is sleeved on conductive seat 61 to the right, then move right together until reaching figure
4 earthing positions；Air cavity III volume compressions in motion process, air-flow pass through piston plate 52, moving contact component 55, movement pull rod 13
Venthole and air vent channel flowing, air cavity II constancies of volume, the volume of air cavity I expand, air cavity III volumes become smaller, air cavity IV
Volume is unaffected；Outlet conductor 63 in outlet pole 6 and composition electrically conducting circuit between earthing bar 14 at this time, electric current can
With through outlet conductor 63, conductive seat 61, watchband-shaped contactor 135, conducting rod 131, grounding contact 73, last grounded drainage goes out, shape
At the ground state of on-load switch, it is ensured that the safety of Operation and Maintenance personnel.
By operating above, linear type three-stations load switch is simply and reliablely completed from combined floodgate to separating brake, by separating brake
It is operated to grounding function, realizes three station functions of on-load switch, it is ensured that the safety of Operation and Maintenance personnel.Conversely, linear type three
Station load switch can also be completed under the driving of operating mechanism from be grounded to separating brake, the operation from separating brake to combined floodgate, realize
On-load switch puts into operation.
It finally describes from Fig. 4 open positions to each mechanism action process of Fig. 3 closing positions：The actuating unit of operating mechanism 2
Work, driving executing agency drive the output toggle arm on output shaft to rotate clockwise, and output toggle arm pushes the pull rod 133 of ontology 1
Moved to left as shown in the figure, conductive loop bar 131 is moved with pull rod 133 to left as shown in the figure, and push piston plate 52 and
Conductive arc extinguishing component 55 moves downward simultaneously, and the spout of the moving contact shielding case 54 in 52 left side of piston plate contacts static contact screen first
Cover 44 is covered, closed shielding case is formed；Moving contact shielding case 54 continues to press on tactile static contact shielding case 44 and is moved to the left, moving contact
Component 55 moves closer to inlet wire conductor 42 until complete grafting, is being closed close to the electric arc generated in the process with grafting is completely isolated
Shielding case in；55 inside moving contact core of moving contact component, static contact end are provided with the conductive material of high melting point, grafting process
Middle internal moving contact core, stationary contact head height melting point position contact at first, are resistant to the high temperature of electric arc generation；The body of air cavity I when combined floodgate
Product can be compressed, and the spout of a part of driven contact shield cover of gas 54, reversed spray in 55 inside of moving contact component carry out arc extinguishing,
A part is sprayed from the venthole of the piston plate 52 outside spout, is conducive to the extinguishing of electric arc；Arcing failure inside on-load switch
When high pressure gas energy explosion pressure release passage 45 thin-walled after go out, avoid hurting operator or destroy other parts, closed a floodgate
The resetting spring of operating mechanism 2 energy storage simultaneously in journey；Direct acting type three-stations load switch of the invention is in shown in Fig. 3 at this time
Closing position, 6 inlet wire pole 4, outlet pole electrically conductings；Electrical off-state is between outlet pole 6 and earthing bar 14,
Maloperation will not occur.
Claims (8)
1. a kind of direct acting type three-stations load switch, it is characterised in that：The direct acting type three-stations load switch includes ontology
（1）, operating mechanism（2）, mounting bracket（3）, ontology（1）, operating mechanism（2）It is fixedly mounted on mounting bracket（3）On；Ontology
（1）Shell is tubular construction, and rear and front end is respectively by inlet wire pole（4）, capping（7）Closing, inside is by piston plate（52）, be oriented to
Seat（161）, outlet pole（6）It is divided into tetra- air cavitys of I, II, III, IV, piston plate（52）Venthole with front and back perforation,
Air cavity I, II are interconnected；Inlet wire pole（4）It is provided with static contact, piston plate（52）It is provided with moving contact component（55）, outlet
Pole（6）It is provided with conductive seat（61）As Interposer contact, capping（7）It is provided with grounding contact（73）；Moving contact component（55）
Rear side is installed with insulated tension pole（13）, insulated tension pole（13）Sequentially pass through guide holder（161）, outlet pole（6）Centre
Contact, capping（7）Grounding contact after connect with operating mechanism, and can be driven by operating mechanism axially translated；It is described straight
Ejector half three-stations load switch tool is there are three operating position, closing position, open position and earthing position, in closing position,
Moving contact component（55）It is connected with the direct grafting of static contact, moving contact component（55）, conductive seat（61）Pass through insulated tension pole（13）
The conductive loop bar of leading portion（131）Conducting, grounding contact（73）, conductive seat（61）It disconnects；In open position, moving contact component
（55）, static contact disconnect, grounding contact（73）, conductive seat（61）Also it disconnects；In earthing position, static contact, moving contact component
（55）It disconnects, moving contact component（55）, grounding contact（73）Between pass through conductive loop bar（131）Conducting；
The inlet wire pole（4）It is bored including inlet wire cable（41）, inlet wire conductor（42）, static contact shielding case（44）, pressure release passage
（45）, inlet wire conductor（42）Epoxy resin through poured with epoxy resin after first segment enclosure, moulding by casting is inlet wire
Cable is bored（41）；Inlet wire conductor（42）Be made of the conductor material with right-angle structure, horizontal position end equipped with static contact and
Static contact shielding case（44）, static contact shielding case（44）It can slide back and forth in an axial direction, static contact shielding case（44）Inside is also set
It is equipped with resetting spring；Inlet wire pole（4）On have setting pressure release passage（45）, pressure release passage（45）Wall with thinner thickness；
The guide holder（161）It is provided centrally with catch jacket（164）, catch jacket（164）Rear inside has restriction protrusion, conductive
Seat（61）Leading portion outer surface has limiting slot, catch jacket（164）Inner side limiting-position protrusion can be caught in conductive seat（61）Outer surface limits
Restricted guidance seat moves in slot；Catch jacket（164）Inside it is provided with guideway（163）, guideway（163）Rear end has taper
The claw inner surface on inclined-plane and catch jacket rear end coordinates, guideway（163）Tapered slope can strut the card of catch jacket rear end
Pawl so that catch jacket（164）Inner side limiting-position protrusion can be upwardly separated from conductive seat（61）Outer surface limiting slot；Guideway（163）
With conductive loop bar（131）Between be set with resetting spring（165）, resetting spring（165）Both ends are by guideway（163）Inside
Step and conductive seat（61）Front end limits；Catch jacket（164）And guideway（163）Between be additionally provided with cycle spring, outer ring
Both ends of the spring is by guideway（163）Step limit in the step and catch jacket of front end outer side；Conductive loop bar（131）Upper fixation
Limited block is installed（166）, conductive loop bar（131）On can drive limited block（166）It pushes guide holder axially translated, is oriented to
Seat（161）The guide ring of loop configuration is provided between periphery and outer casing inner wall.
2. direct acting type three-stations load switch according to claim 1, it is characterised in that：The shell is metal material,
By fixed inlet wire pole（4）First segment shell, second segment shell, fixed outlet pole（6）Third section shell and capping（7）
Composition, the cylindrical outer casing of each section of achievable grounding function that is composed of a fixed connection by ring flange.
3. direct acting type three-stations load switch according to claim 1, it is characterised in that：The moving contact component（55）Peace
Loaded on piston plate（52）Centre, moving contact component（55）Internal and rear end all has the front and back venthole penetrated through；Piston plate
（52）The guide ring of loop configuration is provided between periphery and outer casing inner wall, left side is provided with moving contact shielding case（54）Cover is loaded on
Moving contact component（55）Outside, moving contact shielding case（54）It is provided with spout.
4. direct acting type three-stations load switch according to claim 1, it is characterised in that：The outlet pole（6）Including
There is outlet cable cone（62）, conductive seat（61）, outlet conductor（63）, conductive seat（61）, outlet conductor（63）By epoxy resin in
Moulding by casting is bored for outlet cable in third section shell（62）；Conductive seat（61）It is set to the centre of third section shell, is led
Electric seat（61）There is leading portion sleeve shaped structure to forward extend out outlet cable cone（62）；Guideway（163）, catch jacket（164）Set
Loaded on conductive seat（61）The sleeve shaped structure of leading portion.
5. direct acting type three-stations load switch according to claim 1, it is characterised in that：The capping（7）Centre
Grounding contact is installed（73）, grounding contact inside has venthole, venthole back-end closure；Capping（7）Outside is additionally provided with
Outlet is separately connected enclosed valve（15）, earthing bar（14）.
6. direct acting type three-stations load switch according to claim 1, it is characterised in that：The insulated tension pole（13）Back segment
It is provided with pull rod（133）, pull rod（133）It is connect with operating mechanism and axially translated, insulated tension pole can be driven by operating mechanism
（13）It is additionally provided with watchband-shaped contactor（135）, watchband-shaped contactor（135）It is installed in conductive loop bar（131）With conductive seat（61）Leading portion
Between sleeve shaped structure；Conductive loop bar（131）, insulated tension pole（132）, pull rod（133）With hollow structure, hollow structure is mutual
Connection forms air vent channel, air vent channel front end and moving contact component（55）Venthole is connected to, air vent channel back-end closure；It is conductive
Loop bar（131）, insulated tension pole（132）, pull rod（133）Also there is stomata, stomata and ontology（1）Internal I, II, III, IV tetra-
Air cavity communicates.
7. direct acting type three-stations load switch according to claim 1, it is characterised in that：The ontology（1）Internal I, II,
Insulating gas is filled in tetra- air cavitys of III, IV, insulating gas is one of sulfur hexafluoride, drying nitrogen；By exhausted between air cavity
Edge pull rod（13）, conductive loop bar（131）Air vent channel above and piston plate（52）, moving contact component（55）, grounding contact
Venthole form interconnected air cavity, piston plate（52）, guide holder（161）In insulated tension pole（13）It is put down in an axial direction under drive
Shifting can change I, II, III air cavity volume size.
8. direct acting type three-stations load switch according to claim 1, it is characterised in that：The mounting bracket（3）Packet
Mounting plate is included（31）, girder（32）, axle bed（33）, fixed plate（34）, mounting plate（31）, girder（32）, axle bed（33）, it is fixed
Plate（34）Connection fastened to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270015.9A CN105810495B (en) | 2016-04-27 | 2016-04-27 | Direct acting type three-stations load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270015.9A CN105810495B (en) | 2016-04-27 | 2016-04-27 | Direct acting type three-stations load switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105810495A CN105810495A (en) | 2016-07-27 |
| CN105810495B true CN105810495B (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610270015.9A Expired - Fee Related CN105810495B (en) | 2016-04-27 | 2016-04-27 | Direct acting type three-stations load switch |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993390A (en) * | 2019-11-22 | 2020-04-10 | 许继（厦门）智能电力设备股份有限公司 | Switch structure with switching-on and switching-off assisting and buffering functions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201673849U (en) * | 2010-03-16 | 2010-12-15 | 新东北电气集团高压开关有限公司 | Sulfur hexafluoride ultra-high voltage resistive small-current on-off switch |
| CN203192672U (en) * | 2013-04-19 | 2013-09-11 | 镇江维依埃电工研究所有限公司 | Direct-acting three-position isolating switch |
| CN105244223A (en) * | 2015-10-09 | 2016-01-13 | 维龙（镇江）电工研究院有限公司 | Three-station direct drive load switch single-phase module |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1049954B (en) * | 1957-09-12 | 1959-02-05 | ||
| US4645888A (en) * | 1984-04-09 | 1987-02-24 | Raychem Corporation | Load break switch with safety mechanism |
| CN201378523Y (en) * | 2009-03-28 | 2010-01-06 | 山东泰开高压开关有限公司 | Novel flexible static arc contact |
| CN203312132U (en) * | 2013-06-27 | 2013-11-27 | 北京清畅电力技术股份有限公司 | Three-position solid insulation isolation switch |
| CN205810672U (en) * | 2016-04-27 | 2016-12-14 | 维龙（镇江）电工研究院有限公司 | Direct acting type three-stations load switch |
-
2016
- 2016-04-27 CN CN201610270015.9A patent/CN105810495B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201673849U (en) * | 2010-03-16 | 2010-12-15 | 新东北电气集团高压开关有限公司 | Sulfur hexafluoride ultra-high voltage resistive small-current on-off switch |
| CN203192672U (en) * | 2013-04-19 | 2013-09-11 | 镇江维依埃电工研究所有限公司 | Direct-acting three-position isolating switch |
| CN105244223A (en) * | 2015-10-09 | 2016-01-13 | 维龙（镇江）电工研究院有限公司 | Three-station direct drive load switch single-phase module |
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| CN105810495A (en) | 2016-07-27 |
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Address after: 212001 Zhenjiang New District, Zhenjiang City, Jiangsu Province Patentee after: Weilong (Zhenjiang) Academy of Mechanical and Electrical Sciences Co.,Ltd. Address before: Fortune Plaza 212001 Zhenjiang city of Jiangsu province Jingkou District No. 2 building 17 room 1701 Patentee before: WEILONG (ZHENJIANG) ELECTRICAL ENGINEERING RESEARCH INSTITUTE Co.,Ltd. |
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