CN201465891U - Integrated oxygen free copper shielding cylinder for vacuum arc extinguish chamber - Google Patents
Integrated oxygen free copper shielding cylinder for vacuum arc extinguish chamber Download PDFInfo
- Publication number
- CN201465891U CN201465891U CN2009200813302U CN200920081330U CN201465891U CN 201465891 U CN201465891 U CN 201465891U CN 2009200813302 U CN2009200813302 U CN 2009200813302U CN 200920081330 U CN200920081330 U CN 200920081330U CN 201465891 U CN201465891 U CN 201465891U
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- Prior art keywords
- shielding cylinder
- cylinder
- free copper
- vacuum arc
- arc extinguish
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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 an integrated oxygen free copper shielding cylinder for a vacuum arc extinguish chamber, belonging to the technical field of electric vacuum elements and comprising a straight cylinder, shrinkage cylinders at two ends and ports. The integrated oxygen free copper shielding cylinder is characterized by being in an integrated structure, and the straight cylinder and the shrinkage cylinders as well as the shrinkage cylinders and the ports are in arc transition. The utility model has simple manufacture process, lower cost, reliable cut-off property of the vacuum arc extinguish chamber adopting the shielding cylinder, strong thunder impaction resisting capacity and long service life, and is suitable for the vacuum arc extinguish chambers with 40.5kV rated voltage grade and exposed shielding cylinders.
Description
Affiliated technical field
The utility model relates to a kind of mesohigh power switching device, relates in particular to the parts of vacuum interrupter, belongs to electron tube manufacturing technology field.
Background technology
At present, the used shielding cylinder material of vacuum interrupter adopts stainless steel or oxygen-free copper mostly, when adopting stainless steel material, be to cut down part by straight tube with another to be welded through argon arc, the (see figure 2) that exists owing to weld seam 4, increased the possibility of gas leakage, simultaneously because the existence on argon arc welding interface limit certainly leads to local Electric Field Distribution concentrates, easily produce point discharge owing to superpotential existence in the course of the work, thereby cause the arc through that arc control device are outer, finally cause shielding cylinder or insulation crust to puncture, the situation that arc control device were lost efficacy.And when adopting oxygenless copper material to make the two style structure shielding cylinder, because the soldering welding need be adopted with respect to the low-melting solder of copper material, the (see figure 3) that exists owing to weld seam 5, in the process of cut-offfing because the temperatures involved of electric arc, producing higher relatively metallic vapour in arc control device presses, the result can exert an influence to the stability of cut-offfing of vacuum interrupter, causes its performance reliability to reduce.
The utility model content
In order to overcome the oxygen-free copper shielding cylinder above shortcomings of existing structure, the utility model provides a kind of vacuum interrupter integral type oxygen-free copper shielding cylinder.
The technical scheme that its technical problem that solves the utility model adopts is: vacuum interrupter integral shielding tube, the shrink cylinder 2 and the port 3 that comprise straight tube 1, two ends, shielding cylinder is an integral structure, is arc transition between straight tube 1 and shrink cylinder 2, shrink cylinder 2 and the port 3.
The beneficial effects of the utility model are, manufacturing process is simple, and cost is lower, adopts the vacuum interrupter break performance of this shielding cylinder reliable, and Electric Field Distribution is even, and anti-lightning impulse ability is strong, long service life.
Description of drawings
Fig. 1 is the utility model general structure schematic diagram;
Fig. 2 is existing stainless steel material shielding cylinder structural representation.
Fig. 3 is existing oxygenless copper material double-body bike shielding cylinder structural representation.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Vacuum interrupter comprises the shrink cylinder 2 and the port 3 at straight tube 1, two ends with integral type oxygen-free copper shielding cylinder, it is characterized in that shielding cylinder is an integral structure, is arc transition between straight tube 1 and shrink cylinder 2, shrink cylinder 2 and the port 3.
The wall thickness of shielding cylinder is 3.5mm.The external diameter of straight tube 1 is φ 138mm, and long is 71mm; The external diameter of port 3 is φ 101mm; The shielding cylinder length overall is 130mm.
Adopt oxygen-free copper (TU1) material, shaped by fluid pressure technology forms. and the shielding cylinder inwall is highly polished, and Electric Field Distribution has evenly been avoided point discharge. can be used for the exposed serial vacuum interrupter of 40.5KV grade of rated voltage shielding cylinder.
Adopt the vacuum interrupter break performance of this shielding cylinder reliable, the positive-negative polarity lightning impulse withstand voltage can reach more than the 210KV.
Claims (4)
1. a vacuum interrupter is with integral type oxygen-free copper shielding cylinder, the shrink cylinder (2) and the port (3) that comprise straight tube (1), two ends, it is characterized in that shielding cylinder is an integral structure, is arc transition between straight tube (1) and shrink cylinder (2), shrink cylinder (2) and the port (3).
2. vacuum interrupter according to claim 1 is characterized in that with integral type oxygen-free copper shielding cylinder described port (3) locates to be provided with groove (3-1).
3. vacuum interrupter according to claim 1 is characterized in that with integral type oxygen-free copper shielding cylinder the wall thickness of described shielding cylinder is 3.5mm.
4. vacuum interrupter according to claim 1 is characterized in that with integral type oxygen-free copper shielding cylinder the external diameter of described straight tube (1) is φ 138mm, and long is 71mm; The external diameter of port (3) is φ 101mm; The shielding cylinder length overall is 130mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200813302U CN201465891U (en) | 2009-06-01 | 2009-06-01 | Integrated oxygen free copper shielding cylinder for vacuum arc extinguish chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200813302U CN201465891U (en) | 2009-06-01 | 2009-06-01 | Integrated oxygen free copper shielding cylinder for vacuum arc extinguish chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201465891U true CN201465891U (en) | 2010-05-12 |
Family
ID=42393239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200813302U Expired - Fee Related CN201465891U (en) | 2009-06-01 | 2009-06-01 | Integrated oxygen free copper shielding cylinder for vacuum arc extinguish chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201465891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825433A (en) * | 2012-09-19 | 2012-12-19 | 哈尔滨电机厂有限责任公司 | Integral molding manufacturing process method of steam turbine generator copper shield |
-
2009
- 2009-06-01 CN CN2009200813302U patent/CN201465891U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825433A (en) * | 2012-09-19 | 2012-12-19 | 哈尔滨电机厂有限责任公司 | Integral molding manufacturing process method of steam turbine generator copper shield |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Peng Yong Document name: Notification to Pay the Fees |
|
| 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: 20100512 Termination date: 20170601 |