CN202178206U - Vacuum arc extinguish chamber - Google Patents
Vacuum arc extinguish chamber Download PDFInfo
- Publication number
- CN202178206U CN202178206U CN2011202960661U CN201120296066U CN202178206U CN 202178206 U CN202178206 U CN 202178206U CN 2011202960661 U CN2011202960661 U CN 2011202960661U CN 201120296066 U CN201120296066 U CN 201120296066U CN 202178206 U CN202178206 U CN 202178206U
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- CN
- China
- Prior art keywords
- moving
- insulation crust
- conductive rod
- static
- fixed
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- Expired - Fee Related
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a vacuum arc extinguish chamber, comprising an insulating housing with a vacuum inner cavity and mutually corresponding moving and fixed contact assemblies, wherein a moving contact and a fixed contact in the moving and fixed contact assemblies are located in the inner cavity of the insulating housing, one end of a moving conducting rod in the moving contact assembly is connected with the moving contact, the other end passes through a sealing member and then is exposed to the insulating housing, one end pf a fixed conducting rod in the fixed contact assembly is connected with the fixed contact, and the other end is exposed to the insulating housing and fixed on the insulating housing. The vacuum arc extinguish chamber is characterized in that the three pairs of moving and fixed contact assemblies are respectively arranged inside the insulating housing at intervals. Through employing a structure of three-phase-in-one-chamber, the vacuum arc extinguish chamber is compact in integral structure, small in volume and low in manufacture cost, and is convenient for three-phase united operation thereby enabling the three-phase cur-off synchronism to be better; the vacuum arc extinguish chamber can be widely used for a breaker or a load switch with three phases simultaneously cut-off in a power system, and especially is worth being popularized and applied in a miniature intelligent power grid.
Description
Technical field
The utility model relates to a kind of power switch, specifically refers to a kind of vacuum interrupter that is applied in the power switches such as vacuum circuit-breaker and vacuum load switch.
Background technology
Vacuum interrupter is the core component of middle and high piezoelectric forces switch; Be widely used in the power transmission and distribution control system of electric power; Its operation principle is; Dependence is sealed in the on-off function that a pair of contact in the vacuum chamber is realized power circuit, through the superior isolation property that indoor vacuum possessed middle and high volt circuit is cut off the electricity supply after blow-out and suppress electric current rapidly, avoid accident to take place with unexpected.In three-phase commercial power field, often need dispose the three-phase vacuum interrupter; Usually adopt three single-phase independently vacuum interrupters to assemble in the prior art; The main deficiency of this three-phase vacuum interrupter is: at first, adopt independently vacuum arc extinguish chamber structure of every phase, make that the volume of whole three-phase vacuum interrupter is bigger; Overall structure is compact inadequately, and this has not only increased the manufacturing cost of product but also has not been suitable in the intelligent grid of miniaturization; Secondly, because the volume of vacuum interrupter is bigger, cause the difficult realization of three-phase conjoined operation; Three alternate synchronisms are relatively poor; Be easy to generate higher overvoltage in the use and shove, the fail safe of operation and reliability can not get ensureing that finally the stability to electric power system has a negative impact.In sum, remain existing this type vacuum interrupter is done further to improve
The utility model content
The utility model technical problem to be solved is to above-mentioned prior art present situation, and a kind of compact conformation, less, the lower-cost vacuum interrupter of volume are provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of vacuum interrupter; Comprise insulation crust and corresponding each other dynamic and static contact assembly with vacuum lumen; The inner chamber that moving contact in the wherein dynamic and static contact assembly, fixed contact are arranged in said insulation crust; One end of the moving conductive rod in the moving contact component links to each other with said moving contact; The other end exposes to described insulation crust after passing a seal, and static conductive rod one end in the fixed contact assembly is connected with said fixed contact, and the other end exposes and is fixed on the described insulation crust; It is characterized in that: described dynamic and static contact assembly has three pairs, and is spaced apart respectively in described insulation crust.
As preferably; Described insulation crust comprises housing and the moved end cover plate and the quiet end casing that are positioned at the housing two ends; Described seal is a bellows; The described moving conductive rod other end exposes to said moved end cover plate after passing said bellows, and the described static conductive rod other end exposes and is fixed on the said quiet end casing.Adopt bellows as seal; Can make vacuum interrupter obtain good air tightness; And moving conductive rod and static conductive rod uprightly expose to corresponding moved end cover plate and quiet end casing respectively, both have been convenient to install and use, and also be convenient to external drive source moving conductive rod is carried out driven in synchronism.
Further preferred, each lays respectively in the shielding cylinder separately described dynamic and static contact.Through the setting of shielding cylinder, can reduce near the electric field strength of contact, thereby further improve the insulation level of vacuum interrupter.
In order to increase creepage distance, reach between the adjacent static conductive rod between the outer adjacent moving conductive rod of described insulation crust and be equipped with insulating barrier.Like this, guaranteeing to improve creepage distance on the basis safe in utilization, reliable, reduce the spacing between adjacent moving conductive rod and the adjacent static conductive rod, thereby further dwindle the volume of vacuum interrupter.
Further preferred, three pairs of described dynamic and static contact assemblies are respectively uniformly at intervals in described insulation crust.Like this, the integral structure layout of vacuum interrupter is more reasonable.
Compared with prior art; Because the utility model has three pairs of dynamic and static contact assemblies to be distributed on the insulation crust; Promptly the three pairs of dynamic and static contacts are positioned at the vacuum lumen of same insulation crust, through the coexist structure of a Room of this three-phase, can make the overall structure of vacuum interrupter comparatively compact; Volume is less, low cost of manufacture.Simultaneously also be convenient to the three-phase conjoined operation, it is better to make that three-phase cut-offs net synchronization capability, so the utility model can be widely used in especially being worth in the intelligent grid of miniaturization, applying in three-phase cut-offs together in the electric power system the circuit breaker or on-load switch.
Description of drawings
Fig. 1 is the front view of the utility model embodiment;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is that the A-A of Fig. 1 is to cutaway view.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
To shown in Figure 3, the insulation crust of this vacuum interrupter comprises housing 1 and the moved end cover plate 2, the quiet end casing 3 that are positioned at housing 1 two ends like Fig. 1, in the inner vacuum lumen that forms of insulation crust.Be uniformly distributed with three pairs of dynamic and static contact assemblies in the insulation crust interval; Each has included moving contact 4, fixed contact 5, moving conductive rod 6 and static conductive rod 7 to dynamic and static contact assembly; Wherein moving contact 4 is arranged in vacuum lumen with fixed contact 5; One end of moving conductive rod 6 is arranged in vacuum lumen and is connected with moving contact 4; The other end of moving conductive rod 6 passes outer being exposed on the moved end cover plate 2 in bellows 8 backs, and an end of static conductive rod 7 is arranged in vacuum lumen and is connected with fixed contact 5, and the other end of static conductive rod 7 exposes and is fixed on the quiet end casing 3.Like this, after three pairs of dynamic and static contact assemblies installed, the outer end of three moving conductive rods 6 is outer simultaneously to be exposed at outside the moved end cover plate 2, and the outer end of three static conductive rods 7 is then exposed simultaneously and is fixed on outside the quiet end casing 3.Than three three-phase vacuum interrupters that single-phase independently vacuum interrupter is assembled into of existing employing, present embodiment is arranged on three pairs of dynamic and static contacts in the same vacuum lumen dexterously, thereby makes the overall structure of vacuum interrupter comparatively compact; Volume is less; Cost is lower, is particularly suitable in the intelligent electrical network of miniaturization, simultaneously; This vacuum interrupter is because volume is less; Thereby the three-phase conjoined operation is comparatively simple, and three alternate synchronisms are also better, and fail safe and unfailing performance during the vacuum interrupter operation are effectively ensured.
In addition; In vacuo inside, chamber is equipped with three shielding cylinders 9, and every pair of dynamic and static contact lays respectively in the shielding cylinder 9 separately, through the setting of shielding cylinder 9; Can reduce near the electric field strength of dynamic and static contact, thereby further improve the insulation level of vacuum interrupter.
In order to increase creepage distance; At the outer insulating barrier 10 that adjacent moving conductive rod 6 and adjacent static conductive rod 7 are separated that also is respectively equipped with of moved end cover plate 2 and quiet end casing 3, through insulating barrier 10 is set, on assurance basis safe in utilization, reliable; Can reduce the spacing between adjacent moving conductive rod 6 and the adjacent static conductive rod 7; Thereby further dwindle the volume of vacuum interrupter, make the manufacturing cost of vacuum interrupter be able to further reduction, the market competitiveness is able to further raising.
Claims (5)
1. vacuum interrupter; Comprise insulation crust and corresponding each other dynamic and static contact assembly with vacuum lumen; Moving contact (4) in the wherein dynamic and static contact assembly, fixed contact (5) are arranged in the inner chamber of said insulation crust, and an end of the moving conductive rod in the moving contact component (6) links to each other with said moving contact (4), and the other end exposes to described insulation crust after passing a seal; Static conductive rod (7) one ends in the fixed contact assembly are connected with said fixed contact (5); The other end exposes and is fixed on the described insulation crust, it is characterized in that: described dynamic and static contact assembly has three pairs, and is spaced apart respectively in described insulation crust.
2. vacuum interrupter according to claim 1; It is characterized in that: described insulation crust comprises housing (1) and is positioned at the moved end cover plate (2) and the quiet end casing (3) at housing (1) two ends; Described seal is bellows (8); Described moving conductive rod (6) other end exposes to said moved end cover plate (2) after passing said bellows (8), and described static conductive rod (7) other end exposes and is fixed on the said quiet end casing (3).
3. vacuum interrupter according to claim 1 and 2 is characterized in that: each lays respectively in the shielding cylinder (9) separately described dynamic and static contact.
4. vacuum interrupter according to claim 1 and 2 is characterized in that: reach between the adjacent static conductive rod (7) between the outer adjacent moving conductive rod (6) of described insulation crust and be equipped with insulating barrier (10).
5. vacuum interrupter according to claim 1 and 2 is characterized in that: three pairs of described dynamic and static contact assemblies are respectively uniformly at intervals in described insulation crust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202960661U CN202178206U (en) | 2011-08-12 | 2011-08-12 | Vacuum arc extinguish chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202960661U CN202178206U (en) | 2011-08-12 | 2011-08-12 | Vacuum arc extinguish chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202178206U true CN202178206U (en) | 2012-03-28 |
Family
ID=45868074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202960661U Expired - Fee Related CN202178206U (en) | 2011-08-12 | 2011-08-12 | Vacuum arc extinguish chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202178206U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320996A (en) * | 2018-01-19 | 2018-07-24 | 山东晨鸿电气有限公司 | A kind of mutually throw switchs special integral vacuum arc-extinction chamber |
| CN114342030A (en) * | 2020-09-04 | 2022-04-12 | 天津首瑞智能电气有限公司 | Vacuum switch tube for circuit breaker and manufacturing method of shell of vacuum switch tube |
-
2011
- 2011-08-12 CN CN2011202960661U patent/CN202178206U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320996A (en) * | 2018-01-19 | 2018-07-24 | 山东晨鸿电气有限公司 | A kind of mutually throw switchs special integral vacuum arc-extinction chamber |
| CN108320996B (en) * | 2018-01-19 | 2023-11-28 | 山东晨鸿电气有限公司 | Special integrated vacuum arc-extinguishing chamber for mutual switching |
| CN114342030A (en) * | 2020-09-04 | 2022-04-12 | 天津首瑞智能电气有限公司 | Vacuum switch tube for circuit breaker and manufacturing method of shell of vacuum switch tube |
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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: 20120328 Termination date: 20150812 |
|
| EXPY | Termination of patent right or utility model |