CN202018917U - External shielding structure of vacuum arc extinguish chamber - Google Patents
External shielding structure of vacuum arc extinguish chamber Download PDFInfo
- Publication number
- CN202018917U CN202018917U CN2011200667888U CN201120066788U CN202018917U CN 202018917 U CN202018917 U CN 202018917U CN 2011200667888 U CN2011200667888 U CN 2011200667888U CN 201120066788 U CN201120066788 U CN 201120066788U CN 202018917 U CN202018917 U CN 202018917U
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- Prior art keywords
- vacuum arc
- extinguish chamber
- arc extinguish
- local
- electric field
- 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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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses an external shielding structure of a vacuum arc extinguish chamber. The technical problem that the processing precision or assembling precision at a local ceramic metallized shoulder of the traditional vacuum arc extinguish chamber in the prior art is not enough to cause the phenomenon that the tip is protruded and the electric field here is concentrated is solved; and the technical problem that the local electric field distribution is not uniform at the local ceramic metallized shoulder and the local discharge capacity usually exceeds the standard so as to cause normal use because deflection is easy to cause when a ceramic shell and a metal shell are not homocentrically arranged in the axial direction is also solved. The external shielding structure is characterized in that: shielding springs are sleeved on stainless steel shell shoulder faces at the upper end and the lower end outside the vacuum arc extinguish chamber; and conducting silica gel check rings are sleeved outside the shielding springs at the upper end and the lower end. The external shielding structure has the beneficial effects that: the structure defect and the assembly defect at the local ceramic metallized shoulder of the traditional vacuum arc extinguish chamber are overcome; the problem that the local electric field at the ceramic metallized place of the vacuum arc extinguish chamber is not uniform is solved; the external local electric field of the vacuum arc extinguish chamber is greatly optimized; and the insulation of equipment under a high pressure is more reliable.
Description
Technical field
The utility model belongs to high voltage electrical apparatus technical field, particularly is used for the exterior shield structure of a kind of vacuum interrupter of Cubicle Gas-Insulated Switchgear.
Background technology
Vacuum interrupter is the core devices of vacuum switch, and its exterior insulation performance and workmanship will directly influence the performance and the operational reliability of Cubicle Gas-Insulated Switchgear.The vacuum interrupter that uses in the prior art, not enough or assembly precision is not enough in the local shoulder place of ceramic metallization machining accuracy, can produce most advanced and sophisticated outstanding phenomenon, this place's electric field is concentrated, because ceramic package and metal shell are assemblied in decentraction on the axis direction, be easy to generate deviation again, can make this place internal field skewness, partial discharge quantity exceeds standard often, and influence is normally used.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the weak point that prior art exists, and the exterior shield structure of a kind of vacuum interrupter that solves vacuum interrupter ceramic metallization place internal field problem of non-uniform is provided.
The technical solution adopted in the utility model comprises ceramic package and stainless steel casing, described ceramic package and stainless steel casing adopt the high temperature metallization sealing-in to be integral, stainless steel casing circular bead surface place, the two ends suit shielding spring up and down in the outside of vacuum interrupter, suit electric silica gel back-up ring outside two ends shielding spring up and down.
Compared with prior art, the beneficial effects of the utility model are, since in the outside of vacuum interrupter up and down stainless steel casing circular bead surface place, two ends suit the shielding spring that can optimize electric field of profile, make the fault of construction at the local shoulder place of vacuum interrupter ceramic metallization obtain remedying with the assembling defective, the shielding spring of suit has solved the installation deviation problem effectively, thereby solved the uneven problem of vacuum interrupter ceramic metallization place internal field, optimized vacuum interrupter external partial electric field greatly, made the insulation of equipment under high voltage more reliable.
Description of drawings
Fig. 1 is the external structure of the utility model vacuum interrupter,
Fig. 2 is the A portion enlarged drawing of Fig. 1,
Fig. 3 is the utility model shielding spring schematic diagram.
Among the figure:
1. stainless steel casing circular bead surface, 2. stainless steel casing 3. electric silica gel back-up rings,
4. shielding spring, 5 ceramic packages.
Embodiment
Provide embodiment of the present utility model below in conjunction with accompanying drawing.
As shown in drawings, the utility model comprises ceramic package 5 and stainless steel casing 2, described ceramic package 5 and stainless steel casing 2 adopt the high temperature metallization sealing-in to be integral, the shielding spring 4 of two ends stainless steel casing circular bead surface 1 place's set metal material about the outside of vacuum interrupter, at the outer suit electric silica gel back-up ring 3 of two ends shielding spring 4 up and down, can be with assurance shielding spring 4 along the arc control device axial endplay.
Claims (1)
1. the exterior shield structure of a vacuum interrupter, comprise ceramic package (5) and stainless steel casing (2), described ceramic package (5) and stainless steel casing (2) adopt the high temperature metallization sealing-in to be integral, it is characterized in that, two ends stainless steel casing circular bead surfaces (1) are located suit shielding spring (4) up and down in the outside of vacuum interrupter, suit electric silica gel back-up ring (3) outside two ends shielding spring (4) up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200667888U CN202018917U (en) | 2011-03-15 | 2011-03-15 | External shielding structure of vacuum arc extinguish chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200667888U CN202018917U (en) | 2011-03-15 | 2011-03-15 | External shielding structure of vacuum arc extinguish chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202018917U true CN202018917U (en) | 2011-10-26 |
Family
ID=44812585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200667888U Expired - Fee Related CN202018917U (en) | 2011-03-15 | 2011-03-15 | External shielding structure of vacuum arc extinguish chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202018917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569847A (en) * | 2012-07-20 | 2014-02-12 | 大连第一互感器有限责任公司 | Instrument transformer insulating lifting member |
| CN105070584A (en) * | 2015-07-20 | 2015-11-18 | 长沙金定信息技术有限公司 | Mutual inductor type outdoor high voltage vacuum circuit breaker |
-
2011
- 2011-03-15 CN CN2011200667888U patent/CN202018917U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569847A (en) * | 2012-07-20 | 2014-02-12 | 大连第一互感器有限责任公司 | Instrument transformer insulating lifting member |
| CN103569847B (en) * | 2012-07-20 | 2016-03-23 | 大连第一互感器有限责任公司 | Transformer insulation lifting part |
| CN105070584A (en) * | 2015-07-20 | 2015-11-18 | 长沙金定信息技术有限公司 | Mutual inductor type outdoor high voltage vacuum circuit breaker |
| CN105070584B (en) * | 2015-07-20 | 2017-04-26 | 长沙金定信息技术有限公司 | Mutual inductor type outdoor high voltage vacuum circuit breaker |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111026 Termination date: 20170315 |