CN110071010A - A kind of pole having gas buffer - Google Patents
A kind of pole having gas buffer Download PDFInfo
- Publication number
- CN110071010A CN110071010A CN201910283126.7A CN201910283126A CN110071010A CN 110071010 A CN110071010 A CN 110071010A CN 201910283126 A CN201910283126 A CN 201910283126A CN 110071010 A CN110071010 A CN 110071010A
- Authority
- CN
- China
- Prior art keywords
- gas buffer
- pole
- driving coil
- repulsion
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
- H01H33/662—Housings or protective screens
-
- 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
Abstract
The invention discloses a kind of poles for having gas buffer, including static side terminals, pole shell, vacuum interrupter, electric connecting conductor, moved end terminals, repulsion dish, closed air chamber, gas buffer side wall, moving conductive rod, insulated pull rod, connecting rod, separating brake driving coil, sliding sealing device, venthole, combined floodgate driving coil, bistable holding structure and epoxy resin；The present invention can effectively reduce effective components of electromagnetic repulsion mechanism vacuum circuit breaker, form pole, realize integrated, integrated actual effect, improve dielectric strength；Pole is applied to vacuum circuit breaker, easy to use, and portable flexibly maintenance is simple, and three pole segmentation disassemblies may be implemented in three vacuum circuit breaker applications, play portable advantage.Gas buffer structure is added in pole, saves traditional oils buffer component, reduces the mechanical collision in use process, prolongs the service life, enhancing structure reliability.
Description
Technical field
The invention belongs to vacuum circuit breaker fields, are related to a kind of pole for having gas buffer.
Background technique
Vacuum circuit breaker is the important equipment in power equipment, using vacuum extinction technology, realizes different voltages grade
Breaking capacity.Vacuum interrupter, electromagnetic repulsion force operating mechanism, buffer unit are embedded into solid insulating material simultaneously and formed admittedly
Sealed pole becomes simple, the compact global facility of structure.Modularized design is a characteristic feature of pole, this
Integrated, the integrated design mode of sample improve the reliability of breaker totality, while insulating capacity with higher again, mention
Rise integral insulation intensity.
Chinese patent literature " CN202487485U " discloses a kind of vacuum circuit breaker polar, including porcelain vase, conductive clip, true
Empty arc-chutes, the outlet terminal set on vacuum interrupter, the oil in dynamic and static contact and porcelain vase in vacuum extinction room
Buffer forms circuit breaker polar, effectively prevents breaker and is exposed in air environment for a long time, by extraneous dust, tide
The problem of wet soiling.Chinese patent literature " CN202796714U " discloses a kind of fixed sealing type high voltage circuit breaker post, including ring
Oxygen resin-case, upper wire outlet seat, vacuum interrupter, lower wire outlet seat, the first screw rod, insulated pull rod and the second screw-rod structure, very
Empty arc-chutes are embedded in epoxy resin shell, and each structure forms modularity setting, to eliminate some assembly position errors, are mentioned
High product precision, ensures product consistency, stability runs product more stably, while also greatly improving production efficiency.In
State's patent document " CN105428142A " discloses a kind of breaker and its pole, including what is be sequentially connected electrically from top to bottom
Upper outlet, arc-chutes, lower outlet, pilot hole, the wall surface of the hole of the outer peripheral surface and pilot hole of moved end conducting rod and moved end conducting rod
The fingertip for being equipped at intervals with annular, and be equipped with graphite linings, graphite linings be on fingertip or with fingertip guiding movement along the vertical direction
Cooperation, provides the pole that frictional force is small between a kind of moved end and lower outlet.British patent document " GB2531935A " is open
A kind of three independent self-powereds for vacuum circuit breaker move circuit breaker polars.
In conclusion the existing pole for vacuum circuit breaker effectively increases the insulating properties of vacuum circuit breaker
Can, the integrated design of product is realized, improves properties of product and reliability, but common problem is, existing sealing
There is no integrated buffer structures in pole design for pole, or more traditional oil bumper has been used to carry out buffer function,
Movable member is buffered at the stroke end of switching on and off.However, the damping characteristics of oil bumper are the faster offers of speed
Cushion effect is bigger, therefore, when electromagnetic repulsion force operating mechanism collides oil bumper at a relatively high speed, can generate greatly mechanical punching
Power is hit, the mechanical property of electromagnetic repulsion force operating mechanism is influenced and reduces its service life.Meanwhile to absorb electromagnetic repulsion force actuating machine
The kinetic energy of structure, the oil bumper used also will increase the design size of electromagnetic repulsion force operating mechanism.Gas buffer structure compared to
For oil bumper without mechanical process, plant bulk is smaller, and operating mechanism occupied area reduces, and flexibly and easily, maintenance is simple, has simultaneously
There is higher reliability.
The present invention is added gas buffer in integrative design, and using epoxy resin as medium realize gas buffer with
The insulation of vacuum interrupter is divided, and is effectively promoting breaker insulation performance, use reliability, realizes that product is portable, flexible, dimension
It protects simple effect simultaneously, completes the integration of more height, the modularized design mode of circuit breaker polar, gas buffer
Using breaker break performance is also further promoted, enhance reliability.
Summary of the invention
The purpose of the present invention is to provide a kind of poles for having gas buffer structure, by the gas of electromagnetic operating mechanism
Body buffer structure is applied in pole, simplifies breaker structure, improves modularized design, promotes dielectric strength, while gram
The shortcomings that taking oil bumper reduces mechanical collision during actuating, enhances global reliability and service life.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of pole having gas buffer, including pole shell 2, the vacuum being arranged in pole shell 2
Arc-chutes 3, the static side terminals 1 being fixed on pole shell 2 and moved end terminals 5, the static side terminals 1 pass through electrical connection
Conductor 4 is connected with the static side of vacuum interrupter 3, and the moved end terminals 5 pass through electric connecting conductor 4 and vacuum interrupter 3
Moving conductive rod 9 is connected；Repulsion dish 6, closed air chamber 7, side wall 8, connecting rod 11, separating brake driving coil 12, sliding sealing device
13, venthole 14 and combined floodgate driving coil 15 constitute gas buffer, and connecting rod 11 passes through insulated pull rod 10 and vacuum
The moving conductive rod 9 of arc-chutes 3 is connected, and repulsion dish 6 are arranged in connecting rod 11, and separating brake driving coil 12 passes through gas buffer side
The supporting role of wall 8 is fixed on the top of repulsion dish 6, and combined floodgate driving coil 15 is solid by the supporting role of gas buffer side wall 8
It is scheduled on the lower section of repulsion dish 6, the outlet of connecting rod 11 is respectively between 12 inner wall of separating brake driving coil and combined floodgate driving coil
Be provided with sliding sealing device 13 between 15 inner walls, sliding sealing device 13, separating brake driving coil 12, combined floodgate driving coil 15 and
Gas buffer side wall 8 surrounds closed air chamber 7, and the lower end connection bistable of gas buffer keeps structure 16；The vacuum extinction
Room 3, electric connecting conductor 4, bistable keep structure 16 and gas buffer to pour by epoxy resin 17, are fixed on pole jointly
Has the pole of gas buffer structure in column inner casing, described in composition.
It joined gas buffer, pass through the static side terminals 1 and the connection electromagnetism of moved end terminals 5 on pole shell 2
Repulsive force mechanism carries out switching on and off operation, when electromagnetic repulsion mechanism carries out sub-switching operation, the repulsion dish 6 and connects therewith
The connecting rod 11 that connects, insulated pull rod 10, moving conductive rod 9 done under the electromagnetic repulsion force effect that separating brake driving coil 12 generates vertically to
Under accelerated motion, the closed air chamber 7 of compressed gas buffer unit generates a cushioned resistance from bottom to top；When being closed
When lock operates, the repulsion dish 6 and the connecting rod 11 being attached thereto, insulated pull rod 10, moving conductive rod 9 are in the driving line that closes a floodgate
Accelerated motion straight up is done under the electromagnetic repulsion force effect that circle 15 generates, the closed air chamber 7 of compressed gas buffer unit generates
One top-down cushioned resistance；Bistable keeps structure 16 for keeping position switching on and off when carrying out switching on and off operation.
It is the disk spring with bistable behavior that the bistable, which keeps structure 16,.
The application of the pole for having gas buffer structure is applied to vacuum circuit breaker, when applied to three
In formula vacuum circuit breaker, each single item is able to carry out Portable segmentation installation, disassembly, and maintenance is simple, flexibly and easily.
The invention has the advantages that:
1. compared with prior art, the present invention merges electromagnetic repulsion force actuating gas buffer and vacuum interrupter one
In a pole, there is high dielectric strength, reduce influence of the external environment to vacuum interrupter, while realizing structure
Integrated design, and the gas buffer structure setting below pole, greatly reduce the occupied area of mechanism entirety,
It is compact-sized, high reliablity.
2. gas buffer uses electromagnetic repulsion force disk and sliding sealing device as gas compared to traditional oil bumper
The piston of buffer unit is not present mechanical collision, is increased gas buffer using gas as buffer medium between component
Service life.
It, can be real in three vacuum circuit breaker applications 3. the Integration Design of pole is applied to vacuum circuit breaker
Existing three poles segmentation disassembly, plays portable advantage, and in use flexibly, conveniently, maintenance is simple, improves breaker use
Reliability and stability in the process meets electric system and requires economy, the high reliablity of breaker, greatly improves
The continuity of powered operation.
Detailed description of the invention
Fig. 1 is a kind of pole for having gas buffer of the present invention
Wherein, 1 static side terminals, 2 pole shells, 3 vacuum interrupters, 4 electric connecting conductors, 5 moved end terminals, 6 repulsion
Disk, 7 closed air chambers, 8 gas buffer side walls, 9 moving conductive rods, 10 insulated pull rods, 11 connecting rods, 12 separating brake driving coils, 13 are slided
Dynamic sealing device, 14 ventholes, 15 combined floodgate driving coils, 16 bistables keep structure, 17 epoxy resin.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
As shown in Figure 1, a kind of pole for having gas buffer, including pole shell 2, setting are in pole shell
Vacuum interrupter 3 in 2, the static side terminals 1 and moved end terminals 5 being fixed on pole shell 2, the static side terminals 1
It is connected by electric connecting conductor 4 with the static side of vacuum interrupter 3, the moved end terminals 5 pass through electric connecting conductor 4 and vacuum
The moving conductive rod 9 of arc-chutes 3 is connected；Repulsion dish 6, closed air chamber 7, side wall 8, connecting rod 11, separating brake driving coil 12, sliding
Sealing device 13, venthole 14 and combined floodgate driving coil 15 constitute gas buffer, the connecting rod of gas buffer
11 are connected by insulated pull rod 10 with the moving conductive rod 9 of vacuum interrupter 3, and repulsion dish 6 are connected with connecting rod 11, slow in gas
In flushing device, separating brake driving coil 12 is fixed on the top of repulsion dish 6 by the supporting role of gas buffer side wall 8, closes a floodgate and drives
Moving winding 15 is fixed on the lower section of repulsion dish 6 by the supporting role of gas buffer side wall 8, and gas buffer side wall 8 is provided with outlet
Hole 14, the outlet of connecting rod 11 are provided between 12 inner wall of separating brake driving coil and between 15 inner wall of combined floodgate driving coil respectively
Sliding sealing device 13, sliding sealing device 13, separating brake driving coil 12, combined floodgate driving coil 15 and gas buffer side wall 8
Closed air chamber 7 is surrounded, the lower end connection bistable of gas buffer keeps structure 16, is fixed in pole inner casing jointly,
Constitute the pole for having gas buffer.
It is the disk spring with bistable behavior that the bistable, which keeps structure 16,.
Pass through the static side terminals 1 and the connection electromagnetic repulsion mechanism progress switching on and off of moved end terminals 5 on pole shell 2
Operation, when electromagnetic repulsion mechanism carries out sub-switching operation, the repulsion dish 6 and the connecting rod 11 being attached thereto, insulation are drawn
Bar 10, moving conductive rod 9 do accelerated motion straight down, compressed gas under the electromagnetic repulsion force effect that separating brake driving coil 12 generates
The closed air chamber 7 of body buffer unit generates a cushioned resistance from bottom to top；When carrying out closing operation, the repulsion
The electromagnetic repulsion force that disk 6 and the connecting rod 11 being attached thereto, insulated pull rod 10, moving conductive rod 9 are generated in combined floodgate driving coil 15
Accelerated motion straight up is done under effect, the closed air chamber 7 of compressed gas buffer unit generates a top-down buffering
Resistance；Bistable keeps structure 16 to be used to keep position switching on and off when mechanism carries out switching on and off operation.
The pole that the present invention has gas buffer is applied in vacuum circuit breaker, in trinomial vacuum circuit breaker
In can be achieved three segmentations disassembly, design scheme can play portable advantage, maintenance simply, flexibly and easily.
Claims (4)
1. a kind of pole for having gas buffer, it is characterised in that: including pole shell (2), be arranged outside pole
Vacuum interrupter (3) in shell (2), the static side terminals (1) being fixed on pole shell (2) and moved end terminals (5, it is described
Static side terminals (1) are connected by electric connecting conductor (4) with the static side of vacuum interrupter (3), and (5 is logical for the moved end terminals
Electric connecting conductor (4) is crossed to be connected with the moving conductive rod (9) of vacuum interrupter (3)；Repulsion dish (6), closed air chamber (7), side wall
(8), connecting rod (11), separating brake driving coil (12), sliding sealing device (13), venthole (14) and combined floodgate driving coil
(15) gas buffer is constituted, connecting rod (11) passes through the moving conductive rod (9) of insulated pull rod (10) and vacuum interrupter (3)
Be connected, repulsion dish (6) be arranged on connecting rod (11), separating brake driving coil (12) pass through gas buffer side wall 8) support make
With the top for being fixed on repulsion dish (6), combined floodgate driving coil (15) is fixed on repulsion by the supporting role of gas buffer side wall 8
The lower section of disk (6), the outlet of connecting rod (11) is respectively between separating brake driving coil (12) inner wall and combined floodgate driving coil
(15) it is provided between inner wall sliding sealing device (13), sliding sealing device (13), separating brake driving coil (12), close a floodgate driving line
Circle (15) and gas buffer side wall (8) surround closed air chamber (7), and the lower end connection bistable of gas buffer keeps structure
(16)；The vacuum interrupter (3), electric connecting conductor (4), bistable keep structure (16) and gas buffer to pass through epoxy
Resin (17) pours, and is fixed in pole inner casing jointly, has the pole of gas buffer structure described in composition.
2. the pole according to claim 1 for having gas buffer structure, it is characterised in that: joined gas buffer
Device connects electromagnetic repulsion mechanism by static side terminals (1) on pole shell (2) and moved end terminals (5) and carries out point, closes
Lock operation, when electromagnetic repulsion mechanism carries out sub-switching operation, the repulsion dish (6) and the connecting rod (11) being attached thereto,
Insulated pull rod (10), moving conductive rod (9) done under the effect of electromagnetic repulsion force that separating brake driving coil (12) generates straight down plus
Speed movement, the closed air chamber (7) of compressed gas buffer unit generate a cushioned resistance from bottom to top；When carrying out combined floodgate behaviour
When making, the repulsion dish (6) and the connecting rod (11) being attached thereto, insulated pull rod (10), moving conductive rod (9) are in drive of closing a floodgate
Accelerated motion straight up, the closed air chamber of compressed gas buffer unit are done under the electromagnetic repulsion force effect that moving winding (15) generates
(7), a top-down cushioned resistance is generated；Bistable keep structure (16) be used for when carrying out switching on and off operation keep divide,
Closing position.
3. the pole according to claim 1 for having gas buffer, it is characterised in that: the bistable keeps knot
Structure (16) is the disk spring with bistable behavior.
4. the application of the pole described in claim 1 for having gas buffer, it is characterised in that: disconnected applied to vacuum
Road device, when applied in trinomial vacuum circuit breaker, each single item is able to carry out Portable segmentation installation, disassembly, maintenance letter
It is single, flexibly and easily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283126.7A CN110071010B (en) | 2019-04-10 | 2019-04-10 | Solid-sealed polar pole with gas buffering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283126.7A CN110071010B (en) | 2019-04-10 | 2019-04-10 | Solid-sealed polar pole with gas buffering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110071010A true CN110071010A (en) | 2019-07-30 |
| CN110071010B CN110071010B (en) | 2020-11-17 |
Family
ID=67367406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910283126.7A Active CN110071010B (en) | 2019-04-10 | 2019-04-10 | Solid-sealed polar pole with gas buffering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110071010B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113764225A (en) * | 2021-08-24 | 2021-12-07 | 西安交通大学 | Vacuum switch device with electromagnetic repulsion disc arranged inside vacuum arc extinguish chamber |
| CN114267559A (en) * | 2021-12-22 | 2022-04-01 | 西安交通大学 | Fast switch type fault current limiting device for ultrahigh voltage system |
| CN111799127B (en) * | 2019-04-09 | 2023-06-27 | 南京南瑞继保电气有限公司 | Direct-acting switch assembly and closed direct-acting switch device |
| CN117081019A (en) * | 2023-10-10 | 2023-11-17 | 西安合容开关有限公司 | Quick current limiting device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105122412A (en) * | 2014-02-03 | 2015-12-02 | 英国通用电气公司 | Vacuum switching devices |
| CN107316759A (en) * | 2017-07-19 | 2017-11-03 | 西安交通大学 | A kind of gas cushioning features for electromagnetic repulsion force operating mechanism |
-
2019
- 2019-04-10 CN CN201910283126.7A patent/CN110071010B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105122412A (en) * | 2014-02-03 | 2015-12-02 | 英国通用电气公司 | Vacuum switching devices |
| CN107316759A (en) * | 2017-07-19 | 2017-11-03 | 西安交通大学 | A kind of gas cushioning features for electromagnetic repulsion force operating mechanism |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111799127B (en) * | 2019-04-09 | 2023-06-27 | 南京南瑞继保电气有限公司 | Direct-acting switch assembly and closed direct-acting switch device |
| CN113764225A (en) * | 2021-08-24 | 2021-12-07 | 西安交通大学 | Vacuum switch device with electromagnetic repulsion disc arranged inside vacuum arc extinguish chamber |
| CN114267559A (en) * | 2021-12-22 | 2022-04-01 | 西安交通大学 | Fast switch type fault current limiting device for ultrahigh voltage system |
| CN114267559B (en) * | 2021-12-22 | 2023-05-02 | 西安交通大学 | A quick switch formula fault current limiting device for superhigh pressure system |
| CN117081019A (en) * | 2023-10-10 | 2023-11-17 | 西安合容开关有限公司 | Quick current limiting device |
| CN117081019B (en) * | 2023-10-10 | 2024-03-12 | 西安合容开关有限公司 | Quick current limiting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110071010B (en) | 2020-11-17 |
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