CN205920932U - Vacuum circuit breaker explosion chamber structure - Google Patents
Vacuum circuit breaker explosion chamber structure Download PDFInfo
- Publication number
- CN205920932U CN205920932U CN201620853539.6U CN201620853539U CN205920932U CN 205920932 U CN205920932 U CN 205920932U CN 201620853539 U CN201620853539 U CN 201620853539U CN 205920932 U CN205920932 U CN 205920932U
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- CN
- China
- Prior art keywords
- movable contact
- confined space
- vacuum circuit
- chamber structure
- airtight space
- 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.)
- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a vacuum circuit breaker explosion chamber structure, including insulating casing and end cover, two end covers encapsulate together with this shell and become an airtight space, the axial is passed above -mentioned space inside and is equipped with a quiet conducting rod and a movable contact pole, and one of them tip of quiet conducting rod and movable contact pole is arranged in airtight space is outside, and the another one tip is arranged in inside the airtight space, quiet conducting rod is arranged the inside tip in airtight space in and is equipped with the stationary contact, and the tip that airtight space was arranged in inside to the movable contact pole is equipped with the movable contact, the inside shield cover that still is equipped with in airtight space, this shield cover is by quiet conducting rod and the movable contact pole passes and the while is firmly sealed the stationary contact with the movable contact, airtight space is inside to be equipped with a bellows, and this bellows encircles movable contact pole and its tip with the welding of movable contact pole. The utility model discloses a vacuum circuit breaker explosion chamber structure, it is good that it has a sealing performance, shield effectual, long service life's advantage.
Description
Technical field
This utility model is related to a kind of vacuum circuit-breaker arc extinguishing chamber structure.
Background technology
Vacuum interrupter is the important construction in vacuum circuit breaker, and its requirement has high leakproofness and shielding, at this stage
Arc quenching chamber structure connect complicated, not easy processing, and shield effectiveness is bad, is easily reduced the dielectric strength of shell, leads to use
Life-span is not high.
Utility model content
For existing issue, the utility model discloses a kind of vacuum circuit-breaker arc extinguishing chamber structure.
The technical solution of the utility model is as follows:
A kind of vacuum circuit-breaker arc extinguishing chamber structure, including an insulation crust, this shell be respectively arranged at the two ends with an end cap, two
Described end cap is encapsulated into a confined space together with this shell；
It is provided with a static conductive rod and a movable contact bar axially across above-mentioned interior volume, described static conductive rod and described moving are touched
One of end of point bar is placed in outside described confined space, and another one end is placed in inside described confined space；Described
The end that static conductive rod is placed within confined space is provided with stationary contact, and the end that described movable contact bar is placed within confined space sets
There is movable contact；
It is additionally provided with a radome, this radome is worn by described static conductive rod and described movable contact bar inside described confined space
Cross and seal up simultaneously described stationary contact and described movable contact；
It is provided with a corrugated tube, around described movable contact bar and its end is dynamic with described for this corrugated pipe ring inside described confined space
Contact bar is welded.
Preferably, the material of described insulation crust is glass.The shell of the vacuum interrupter that glass material is made easily adds
Work, has the advantages that to be easy to and metal sealing, transparent good
Preferably, the material of described corrugated tube is cadmium Ti-Ni alloy, and this kind of material has preferable dilatation performance, carry
The high service life of chopper.
Preferably, the material of described stationary contact and movable contact is chromiumcopper, has that good conductivity, are-tight property be good, gassiness
Amount low, heat conduction is good, high mechanical strength and easy to process the features such as.
The utility model discloses a kind of vacuum circuit-breaker arc extinguishing chamber structure, it has good seal performance, and shield effectiveness is good,
The advantage of long service life.
Brief description
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below will be to required in embodiment description
Accompanying drawing to be used is briefly described.
Fig. 1 is the front view of vacuum circuit-breaker arc extinguishing chamber structure provided by the utility model.
In figure numeral represents:
1st, shell 2, end cap 3, electrostatic guide rod 4, movable contact bar 5, stationary contact
6th, movable contact 7, radome 8, corrugated tube.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe.
Shown in Fig. 1, a kind of vacuum circuit-breaker arc extinguishing chamber structure, including an insulation crust 1, being respectively arranged at the two ends with of this shell 1
One end cap 2, two described end caps 2 are encapsulated into a confined space together with this shell 1；
It is provided with a static conductive rod 3 and a movable contact bar 4 axially across above-mentioned interior volume, described static conductive rod 3 and described
One of end of movable contact bar 4 is placed in outside described confined space, and another one end is placed in inside described confined space；
The end that described static conductive rod 3 is placed within confined space is provided with stationary contact 5, and described movable contact bar 4 is placed in inside confined space
End be provided with movable contact 6；
It is additionally provided with a radome 7, this radome 7 is by described static conductive rod 3 and described movable contact inside described confined space
Bar 4 passes through and seals up described stationary contact 5 and described movable contact 6 simultaneously；
It is provided with a corrugated tube 8, this corrugated tube 8 is around described movable contact bar 4 and its end and institute inside described confined space
State movable contact bar 4 to weld.
The material of described insulation crust 1 is glass.The shell 1 of the vacuum interrupter that glass material is made is easily worked, tool
Have the advantages that to be easy to and metal sealing, transparent good；The material of described corrugated tube 8 is cadmium Ti-Ni alloy, and this kind of material has relatively
Good dilatation performance, improves the service life of chopper；Described stationary contact 5 is chromiumcopper with the material of movable contact 6,
Have good conductivity, are-tight property is good, air content is low, heat conduction good, high mechanical strength and easy to process the features such as.
Implementation principle: as a big vacuum tube, it is the hermetic container of a vacuum to the structure of vacuum interrupter.Vacuum
The insulation crust 1 of arc-chutes mainly makes of glass.The shell 1 of the vacuum interrupter that glass material is made is easily worked, and has
Be easy to metal sealing, transparent good the advantages of.Seal bellows 8 is the vitals of vacuum interrupter, its one end with dynamic
Contact bar 4 is welded, therefore it is required that it should ensure movable contact 6 can for linear motion (10kv vacuum circuit breaker sound contact 5 it
Between break distance be generally 10～15mm), the structure of arc-chutes can not be destroyed simultaneously again.Therefore, corrugated tube 8 generally adopts
The chromium Ti-Ni alloy of 0.12～0.14mm through hydraulic pressure or mechanical stitch welding forming, to ensure its sealing.Vacuum circuit breaker exists
Every time during breaker tripping and closing, corrugated tube 8 all can once dilatation, be flimsy part, its life-span generally determines open circuit
The mechanical life of device.Static conductive rod 3 is welded on end cap 2, and movable contact bar 4 is welded with corrugated tube 8 one end, corrugated tube 8 other end
Weld with end cap 2, end cap 2 is closed with insulation crust 1, to ensure the sealing of vacuum interrupter.Movable contact bar 4 is in corrugated tube 8
The compression range of motion allowing, and do not destroy the indoor vacuum of arc extinguishing.
Radome 7 is to be enclosed in the cylinder made around contact with metal material, and its Main Function is absorption electric arc combustion
The metal vapors discharging during burning, improves the breakdown voltage of arc gap, and prevents the metal expulsion of arc gap to insulation crust 1 inwall
On, reduce the dielectric strength of shell 1.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, herein
Defined General Principle can be real in other embodiments in the case of without departing from spirit or scope of the present utility model
Existing.
Claims (4)
1. a kind of vacuum circuit-breaker arc extinguishing chamber structure it is characterised in that include an insulation crust, this shell be respectively arranged at the two ends with one
End cap, two described end caps are encapsulated into a confined space together with this shell；
It is provided with a static conductive rod and a movable contact bar, described static conductive rod and described movable contact bar axially across above-mentioned interior volume
One of end be placed in outside described confined space, another one end is placed in inside described confined space；Described quiet lead
The end that electric pole is placed within confined space is provided with stationary contact, and the end that described movable contact bar is placed within confined space is provided with dynamic
Contact；
It is additionally provided with a radome, this radome is passed through simultaneously by described static conductive rod and described movable contact bar inside described confined space
Seal up described stationary contact and described movable contact simultaneously；
It is provided with a corrugated tube, this corrugated pipe ring is around described movable contact bar and its end and described movable contact inside described confined space
Bar welds.
2. vacuum circuit-breaker arc extinguishing chamber structure according to claim 1 is it is characterised in that the material of described insulation crust is
Glass.
3. vacuum circuit-breaker arc extinguishing chamber structure according to claim 1 is it is characterised in that the material of described corrugated tube is cadmium
Ti-Ni alloy.
4. vacuum circuit-breaker arc extinguishing chamber structure according to claim 1 is it is characterised in that described stationary contact and movable contact
Material is chromiumcopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620853539.6U CN205920932U (en) | 2016-08-08 | 2016-08-08 | Vacuum circuit breaker explosion chamber structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620853539.6U CN205920932U (en) | 2016-08-08 | 2016-08-08 | Vacuum circuit breaker explosion chamber structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205920932U true CN205920932U (en) | 2017-02-01 |
Family
ID=57870372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620853539.6U Expired - Fee Related CN205920932U (en) | 2016-08-08 | 2016-08-08 | Vacuum circuit breaker explosion chamber structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205920932U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920691A (en) * | 2017-12-04 | 2019-06-21 | 施耐德电器工业公司 | Dewar bottle for electrical switchgear |
| CN110828228A (en) * | 2019-10-29 | 2020-02-21 | 覃向阳 | Vacuum interrupter contact protection device |
-
2016
- 2016-08-08 CN CN201620853539.6U patent/CN205920932U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920691A (en) * | 2017-12-04 | 2019-06-21 | 施耐德电器工业公司 | Dewar bottle for electrical switchgear |
| CN110828228A (en) * | 2019-10-29 | 2020-02-21 | 覃向阳 | Vacuum interrupter contact protection device |
| CN110828228B (en) * | 2019-10-29 | 2021-06-08 | 浙江泰控电气有限公司 | Vacuum interrupter contact protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20200808 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |