CN106558447A - A kind of vacuum circuit breaker contact system - Google Patents
A kind of vacuum circuit breaker contact system Download PDFInfo
- Publication number
- CN106558447A CN106558447A CN201510642286.8A CN201510642286A CN106558447A CN 106558447 A CN106558447 A CN 106558447A CN 201510642286 A CN201510642286 A CN 201510642286A CN 106558447 A CN106558447 A CN 106558447A
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- CN
- China
- Prior art keywords
- vacuum interrupter
- circuit breaker
- insulation tube
- contact
- vacuum
- 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.)
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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
- H01H33/60—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
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
A kind of vacuum circuit breaker contact system, it includes installation pedestal (a), is fitted with vacuum interrupter (b) in some cavitys (a01) of the installation pedestal (a), it is characterised in that：Static side (b02) laid out in parallel of vacuum interrupter (b) in the moved end (b01) of the vacuum interrupter (b) in installation pedestal (a) cavity (a01) and adjacent cavities；Vacuum interrupter mounting structure is changed by the present invention, increases the useful space of electric arc diffusion, is increased adjacent dynamic/static contact centre distance, is improve the reliability and stability of disjunction.Product cost is reduced, the volume of product is reduced.
Description
Technical field
The invention belongs to low voltage electrical apparatus technology field, is exactly specifically to be related to a kind of vacuum circuit breaker contact system,
Improve the high current breaking capacity under breaker low-pressure state.
Background technology
Vacuum interrupter, also known as vacuum switch tube, are the core components of mesohigh power switch, and which is mainly made
With being, rapid blow-out can suppress after the excellent insulating properties of vacuum makes mesohigh circuitry cuts power supply in the pipe
Electric current, it is to avoid accident and unexpected generation, is mainly used in the transmission ＆ distribution electric control system of electric power, is also applied to
The distribution systems such as metallurgy, mine, oil, chemical industry, railway, broadcast, communication, industrial high-frequency heating.Tool
There are energy-conservation, section material, fire prevention, explosion-proof, small volume, life-span length, maintenance cost low, reliable and without dirt
The features such as dye.Vacuum interrupter is divided into arc extinguishing chamber for breaker and on-load switch arc-chutes again from purposes,
Arc-extinguishing chamber of circuit breaker is mainly used in the transformer station in power department and electrical network facilities, and on-load switch uses arc-chutes master
The terminal use of electrical network is used for.Vacuum interrupter is mainly by airtight insulation crust, galvanic circle, shielding system
The part such as system, contact, bellows composition ceramic package vacuum interrupter.
Vacuum interrupter is using high vacuum operational insulation arc-extinguishing medium, by sealing a pair of contacts in a vacuum
To realize a kind of electron tube of the on-off function of power circuit.When which disconnects the electric current of certain numerical value, move
On current constriction to contact is just more detached, there is resistance between electrode violent in detached moment in static contact
Increase and temperature are improved rapidly, until there is the evaporation of electrode metal, while forming high electric-field intensity, are led
Extremely strong strong transmitting and gap breakdown are caused, vacuum arc is produced, when power current is close to zero, while and touching
Head open away from increase, the plasma of vacuum arc is spread to surrounding quickly, after arc current zero passage, contact
The medium in gap is changed into insulator from electric conductor rapidly, and then electric current is broken.Due to the special tectonic of contact,
During arcing, contact gap can produce appropriate longitudinal magnetic field, and this magnetic field can make electric arc be evenly distributed on contact table
Face, maintains low arc voltage, so that vacuum interrupter has dielectric strength resume speed after higher arc, it is little
Arc energy and little corrosion rate.So, just improve the ability of vacuum interrupter drop-out current and make
Use the life-span.
Above-mentioned traditional vacuum arc-chutes, are the core components of mesohigh power switch, have under voltage levels
Preferable protective capability, but in low voltage application occasion, because its volume is big, it is not high to cut-off high current ability,
Never applied well, air type product cannot be substituted all the time, only less demanding mining anti-
Quick-fried occasion has certain applications.
But the little of vacuum interrupter is opened away from, high electric life, without arcing, without various features such as precious metals silvers
There is great advantage than the air type product of low-pressure field, therefore how to realize in the range of little volumetric spaces
Big index of cut-offfing is to make vacuum interrupter be widely used in the technical barrier that low-pressure field needs to solve.China
Number of patent application is that 201410761060.5 patent discloses a kind of vacuum interrupter and uses the vacuum extinction
The vacuum circuit breaker of room.Vacuum interrupter includes porcelain shell, main shield cover and quiet cover plate, and the porcelain shell is metal
Change porcelain shell, one end of the close quiet cover plate of main shield cover is provided with the flange of outside turnover, the end of the flange
It is welded and fixed together with porcelain shell, bending place and the quiet cover plate of the other parts relative to main shield cover of flange
It is welded and fixed together.It is as main shield cover is welded with porcelain shell and quiet cover plate simultaneously, existing true so as to save
Static side radome in empty arc-chutes, and then vacuum interrupter size in the corresponding direction can be greatly reduced, subtract
The volume of little vacuum interrupter, solves that the volume that existing vacuum interrupter is present is big, installation dimension is big asks
Topic, meanwhile, the omission of static side radome can also reduce the production cost of vacuum interrupter.Although the technology subtracts
The little volume of vacuum interrupter, but still cannot apply the purpose that high current is cut-off under low-pressure state.
Vacuum interrupter is the important component part of vacuum circuit breaker contact system, vacuum circuit breaker traditional at present
In device, multiple vacuum interrupters be arranged side by side play extinguish disjunction produce electric arc purpose, but it is this simultaneously
Row mode temporary volume is larger, and electric power impact of lifting one's head on sound is larger, reduces the reliability of disjunction and steady
It is qualitative.
The content of the invention
It is larger that the purpose of the present invention is aiming at existing vacuum circuit breaker contact system volume, adjacent dynamic/static contact
Centre distance is excessive, reduces the technological deficiency of breaking capacity, there is provided a kind of vacuum circuit breaker contact system, will
Vacuum interrupter mounting structure is changed, and increases the useful space of electric arc diffusion, increases adjacent dynamic/static contact
Centre distance, improves the reliability and stability of disjunction.
Technical scheme
In order to realize above-mentioned technical purpose, the present invention designs a kind of vacuum circuit breaker contact system, and it includes installing
Pedestal, is fitted with vacuum interrupter in some cavitys of the installation pedestal, it is characterised in that：The peace
The moved end of the vacuum interrupter in dress base cavity and the static side laid out in parallel of vacuum interrupter in adjacent cavities；
The cavity is step cavity, and it is stub end that cavity installs vacuum interrupter static side.
Further, the vacuum interrupter, it include quiet ring flange, busbar, static contact, moving contact,
Shielding cylinder, insulation tube, bellows, fairlead and moving conductive rod, it is characterised in that：The static contact and dynamic
The external diameter of contact is not less than insulation tube external diameter.
Further, the static contact and moving contact are mounted in shielding cylinder, and one end cap of shielding cylinder is equipped with quiet ring flange,
Quiet ring flange outer end is equipped with busbar, and static contact right-hand member connects quiet base plate, and quiet base plate stretches out quiet ring flange and leads
Electricity row's connection, moving contact are located on the left of static contact, and which is connected with the right-hand member of moving conductive rod, is set with outside moving conductive rod
There is bellows, bellows is mounted in insulation tube, insulation tube external diameter is less than shielding external diameter, the left end of moving conductive rod
Insulation tube is stretched out, insulation tube left end cap is equipped with left cover, and guiding is sleeved on the mouth of pipe that moving conductive rod stretches out left cover
Place.
Further, the insulation tube is porcelain tube.
Further, the insulation tube right side is connected and fixed with shielding cylinder left side.
Further, the fairlead is sleeved on moving conductive rod.
Beneficial effect
A kind of vacuum circuit breaker contact system that the present invention is provided, vacuum interrupter mounting structure is changed
Become, increase the useful space of electric arc diffusion, increase adjacent dynamic/static contact centre distance, improve disjunction can
By property and stability.Product cost is reduced, the volume of product is reduced.
Description of the drawings
Accompanying drawing 1 is the product figure of the embodiment of the present invention.
Accompanying drawing 2 is the product figure of vacuum interrupter in the embodiment of the present invention.
Accompanying drawing 3 is the structural representation of vacuum interrupter in the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be further described.
Embodiment
As shown in Figure 1, a kind of vacuum circuit breaker contact system, it includes installation pedestal a, the installation base
Vacuum interrupter b is fitted with some cavity a01 of seat a, wherein, the installation pedestal a cavity a01
The static side b02 laid out in parallel of the moved end b01 of interior vacuum interrupter b and vacuum interrupter b in adjacent cavities；
The cavity a01 is step cavity, and it is stub end that cavity installs one end of vacuum interrupter static side b02.
As shown in Figures 2 and 3, vacuum interrupter b include quiet ring flange 1, busbar 2, static contact 3,
Moving contact 4, shielding cylinder 5, insulation tube 6, bellows 7, fairlead 8 and moving conductive rod 9, it is characterised in that：
The external diameter of the static contact 3 and moving contact 4 is not less than 6 external diameter of insulation tube.
The static contact 3 and moving contact 4 are mounted in shielding cylinder 5, and one end cap of shielding cylinder is equipped with quiet ring flange 1,
1 outer end of quiet ring flange is equipped with busbar 2, and 3 right-hand member of static contact connects quiet base plate 10, and quiet base plate 10 stretches out quiet
Ring flange 1 is connected with busbar 2, and moving contact 4 is located on the left of static contact 3, its right-hand member with moving conductive rod 9
Connection, is set with bellows 7 outside moving conductive rod 9, and bellows 7 is mounted in insulation tube 6,6 external diameter of insulation tube
Less than 5 external diameter of shielding cylinder, the left end of moving conductive rod 9 stretches out insulation tube 6, and 6 left end cap of insulation tube is equipped with left cover
Plate 11, fairlead 8 are mounted in moving conductive rod 9 and stretch out at the mouth of pipe of left cover 11.
The insulation tube 6 is porcelain tube.
6 right side of the insulation tube is connected and fixed with 5 left side of shielding cylinder.
The fairlead 8 is sleeved on moving conductive rod 9.
A kind of vacuum circuit breaker contact system that the present invention is provided, the sound end of two neighboring pole arc-chutes is carried out
Layout is exchanged, conductive plate diameter is done by efficient and rational utilization solid space, it is ensured that under little spaced apart
To being close to and exceeding spaced apart, increase the useful space of electric arc diffusion, increase adjacent dynamic/static contact centre distance,
Improve the reliability and stability of disjunction.Product cost is reduced, the volume of product is reduced.
Structure, ratio, size depicted in the present embodiment institute accompanying drawings etc., only to coordinate specification to be taken off
The content shown, so that those skilled in the art understands and reads, is not limited to the present invention enforceable
Qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or big
Little adjustment, in the case where effect that can be generated of the invention and the purpose that can be reached is not affected, still all should fall
In the range of disclosed technology contents are obtained and can be covered.Meanwhile, in this specification it is cited as
" on ", D score, "left", "right", " centre ", " clockwise ", the term of " counterclockwise " etc., also only
Understanding for ease of narration, and be not used to limit enforceable scope of the invention, the change of its relativeness or
Adjustment, under without essence change technology contents, when being also considered as enforceable category of the invention.
Claims (6)
1. a kind of vacuum circuit breaker contact system, it includes installation pedestal (a), is fitted with vacuum interrupter (b) in some cavitys (a01) of the installation pedestal (a), it is characterised in that：Static side (b02) laid out in parallel of vacuum interrupter (b) in the moved end (b01) of the vacuum interrupter (b) in installation pedestal (a) cavity (a01) and adjacent cavities；
The cavity (a01) is step cavity, and it is stub end that cavity installs one end of vacuum interrupter static side (b02).
2. a kind of vacuum circuit breaker contact system as claimed in claim 1, it is characterised in that：The vacuum interrupter includes quiet ring flange (1), busbar (2), static contact (3), moving contact (4), shielding cylinder (5), insulation tube (6), bellows (7), fairlead (8) and moving conductive rod (9), it is characterised in that：The external diameter of the static contact (3) and moving contact (4) is not less than insulation tube (6) external diameter.
3. a kind of vacuum circuit breaker contact system as claimed in claim 2, it is characterised in that：The static contact (3) and moving contact (4) are mounted in shielding cylinder (5)，Shielding cylinder (5) right end cap is equipped with quiet ring flange (1)，Quiet ring flange (1) outer end is equipped with busbar (2)，Static contact (3) right-hand member connects quiet base plate (10)，Quiet base plate (10) is stretched out quiet ring flange (1) and is connected with busbar (2),Moving contact (4) is on the left of static contact (3),Which is connected with the right-hand member of moving conductive rod (9)，Bellows (7) is set with outside moving conductive rod (9)，Bellows (7) is mounted in insulation tube (6)，Insulation tube (6) external diameter is less than shielding cylinder (5) external diameter，The left end of moving conductive rod (9) stretches out insulation tube (6)，Insulation tube (6) left end cap is equipped with left cover (11),Fairlead (8) is mounted in moving conductive rod (9) and stretches out at the mouth of pipe of left cover (11).
4. a kind of vacuum circuit breaker contact system as claimed in claim 2, it is characterised in that：The insulation tube (6) is porcelain tube.
5. a kind of vacuum circuit breaker contact system as claimed in claim 2, it is characterised in that：Insulation tube (6) right side is connected and fixed with shielding cylinder (5) left side.
6. a kind of vacuum circuit breaker contact system as claimed in claim 2, it is characterised in that：The fairlead (8) is sleeved on moving conductive rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510642286.8A CN106558447B (en) | 2015-09-30 | 2015-09-30 | A kind of vacuum circuit breaker contact system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510642286.8A CN106558447B (en) | 2015-09-30 | 2015-09-30 | A kind of vacuum circuit breaker contact system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106558447A true CN106558447A (en) | 2017-04-05 |
| CN106558447B CN106558447B (en) | 2018-12-25 |
Family
ID=58418198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510642286.8A Active CN106558447B (en) | 2015-09-30 | 2015-09-30 | A kind of vacuum circuit breaker contact system |
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| Country | Link |
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| CN (1) | CN106558447B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952107A (en) * | 2020-07-03 | 2020-11-17 | 淮南生橘网络科技有限公司 | Low-voltage vacuum circuit breaker based on Internet of things |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0840339A2 (en) * | 1996-11-01 | 1998-05-06 | Eaton Corporation | Vacuum interrupter with arc diffusing contact design |
| CN203103209U (en) * | 2013-01-25 | 2013-07-31 | 常熟开关制造有限公司(原常熟开关厂） | Vacuum arc extinguishing chamber and vacuum circuit breaker using same |
| CN203192681U (en) * | 2013-01-16 | 2013-09-11 | 王永法 | Solid full-insulation switch |
| CN205104427U (en) * | 2015-09-30 | 2016-03-23 | 上海良信电器股份有限公司 | Vacuum circuit breaker contacts system |
-
2015
- 2015-09-30 CN CN201510642286.8A patent/CN106558447B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0840339A2 (en) * | 1996-11-01 | 1998-05-06 | Eaton Corporation | Vacuum interrupter with arc diffusing contact design |
| CN1182949A (en) * | 1996-11-01 | 1998-05-27 | 尹顿公司 | Vacuum circuit breaker with electric arc diffusion contact |
| CN203192681U (en) * | 2013-01-16 | 2013-09-11 | 王永法 | Solid full-insulation switch |
| CN203103209U (en) * | 2013-01-25 | 2013-07-31 | 常熟开关制造有限公司(原常熟开关厂） | Vacuum arc extinguishing chamber and vacuum circuit breaker using same |
| CN205104427U (en) * | 2015-09-30 | 2016-03-23 | 上海良信电器股份有限公司 | Vacuum circuit breaker contacts system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952107A (en) * | 2020-07-03 | 2020-11-17 | 淮南生橘网络科技有限公司 | Low-voltage vacuum circuit breaker based on Internet of things |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106558447B (en) | 2018-12-25 |
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