CN201369286Y - 40.5 KV high-insulation vacuum switching pipe - Google Patents
40.5 KV high-insulation vacuum switching pipe Download PDFInfo
- Publication number
- CN201369286Y CN201369286Y CNU2009200832905U CN200920083290U CN201369286Y CN 201369286 Y CN201369286 Y CN 201369286Y CN U2009200832905 U CNU2009200832905 U CN U2009200832905U CN 200920083290 U CN200920083290 U CN 200920083290U CN 201369286 Y CN201369286 Y CN 201369286Y
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- CN
- China
- Prior art keywords
- porcelain tube
- porcelain
- conductive rod
- tube
- vacuum switching
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- Expired - Fee Related
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Abstract
A 40.5 KV high-insulation vacuum switching pipe comprises a first porcelain tube (6) and a second porcelain tube (9) which are overlapped. The intermediate part of the first and the second porcelain tubes are sealed through a medium sealing ring (8); a moving end cover (4) is arranged at one end of the first porcelain tube (6); a static end cover (18) is arranged at one end of the second porcelain tube (9); a moving conductive rod (2) and a static conductive rod (11) are positioned in the central axis directions of the first and the second porcelain tubes (6 and 9) respectively, and are in contact with each other through a contact assembly (16); both the outer surfaces of the first and the second porcelain tubes (6 and 9) adopt circular groove structures with skirt edges; and a fixed ring (3) is arranged outside a guiding sleeve (13). The utility model overcomes the disadvantage of low external insulation intensity of the prior vacuum switching pipe. The insulating body of the utility model is formed by two porcelain tubes, and by making the outer surfaces of the porcelain casings into circular groove structures with skirt edges, the external insulation of the vacuum switching pipe is improved, the requirements for high voltage and strong current are met, and the voltage resistance performance of the vacuum switching pipe is improved.
Description
Technical field
The utility model relates to a kind of 40.5 KV high-insulation vacuum switch tubes.
Background technology
Existing vacuum switch tube (being also referred to as vacuum interrupter), porcelain tube all adopt straight wall planar structure, and straight wall plane surface is smooth, and creepage distance is short, and the external insulation intensity of the vacuum switch tube of this structure is low, and the dielectric strength of vacuum switch tube remains further to be improved.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned existing disadvantages of background technology part, and a kind of 40.5 KV high-insulation vacuum switch tubes are provided.
The purpose of this utility model reaches by following measure: 40.5 KV high-insulation vacuum switch tubes, it comprises two first porcelain tubes that are stacked together, the second porcelain tube, the first porcelain tube, seal by middle seal ring between the second porcelain tube, one end of the first porcelain tube has the moved end lid, one end of the second porcelain tube has quiet end cap, moving conductive rod and static conductive rod lay respectively at the first porcelain tube, central axis direction in the second porcelain tube, and contact by contact assembly, fairlead is sleeved on the end on the moving conductive rod, and be positioned at the outside of moved end lid, bellows is arranged on the moving conductive rod, and an end of bellows is positioned at the moved end lid, and the other end of bellows is positioned at protective cover; It is characterized in that the outer surface of the described first porcelain tube and the second porcelain tube is the circular groove type structure of band shirt rim, fairlead has retainer ring outward.
In technique scheme, between described first porcelain tube and the moved end lid first sealing ring is arranged, between described second porcelain tube and the quiet end cap second sealing ring is arranged.
In technique scheme, described shielding cylinder is the oxygen-free copper shielding cylinder.
In technique scheme, in the first porcelain tube and the second porcelain tube, shielding cylinder is arranged, the contact assembly that is positioned at moving conductive rod and static conductive rod end is positioned at shielding cylinder.
The utility model 40.5 KV high-insulation vacuum switch tubes have following advantage: 1.. and insulator is that two porcelain tubes are formed, make the circular groove type structure of band shirt rim by the ceramic package outer surface, can increase the external insulation of vacuum switch tube, satisfy the requirement of high voltage, big electric current, improved the withstand voltage properties of vacuum switch tube.2.. change existing stainless steel shielding tube into the oxygen-free copper shielding cylinder, shortened the external diameter of vacuum switch tube.3.. adopt built-in shielding cylinder, make the vacuum switch tube miniaturization, and optimized the internal electric field distribution of vacuum switch tube, improved the dielectric strength of vacuum switch tube.
Description of drawings
Fig. 1 is the structural representation of the utility model 40.5 KV high-insulation vacuum switch tubes.
Fig. 2 is retainer ring and a fairlead annexation enlarged drawing among Fig. 1.
1. swivel nuts among the figure, 2. moving conductive rod, 3. retainer ring; 4. the moved end is covered, 5. first sealing ring, the 6. first porcelain tube; 7. shielding cylinder, 8. in seal ring, the 9. second porcelain tube; 10. getter (storage and duration of work at device are kept certain vacuum degree), 11. static conductive rods, 12. flanges; 13. fairlead, 14. bellowss, 15. protective covers; 16. contact assembly, 17. second sealing rings, 18. quiet end caps.
Embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not constitute to qualification of the present utility model, only do for example.Simultaneously by illustrating that advantage of the present utility model will become clear more and understanding easily.
Consult accompanying drawing as can be known: the utility model 40.5 KV high-insulation vacuum switch tubes, it comprises two the first porcelain tube 6, the second porcelain tubes 9 that are stacked together, seal by middle seal ring 8 between the first porcelain tube 6, the second porcelain tube 9, one end of the first porcelain tube 6 has moved end lid 4, one end of the second porcelain tube 9 has quiet end cap 18, moving conductive rod 2 and static conductive rod 11 lay respectively at the central axis direction in the first porcelain tube 6, the second porcelain tube 9, and by contact assembly 16 contacts; Fairlead 13 is sleeved on the end on the moving conductive rod 2, and is positioned at the outside of moved end lid 4, and bellows 14 is arranged on the moving conductive rod 2, and an end of bellows 14 is positioned at moved end lid 4, and the other end of bellows 14 is positioned at protective cover 15; The outer surface of the first porcelain tube 6 and the second porcelain tube 9 is the circular groove type structure of band shirt rim, and retainer ring 3 (as shown in Figure 2) is arranged outside the fairlead 13.Between the first porcelain tube 6 and the moved end lid 4 first sealing ring 5 is arranged, between described second porcelain tube 9 and the quiet end cap 18 second sealing ring 17 is arranged, shielding cylinder 7 is the oxygen-free copper shielding cylinder.In the first porcelain tube 6 and the second porcelain tube 9 shielding cylinder 7 is arranged, the contact assembly 16 that is positioned at moving conductive rod 2 and static conductive rod 11 ends is positioned at shielding cylinder 7 (as shown in Figure 1).
Claims (4)
1,40.5 KV high-insulation vacuum switch tube, it comprises two first porcelain tubes (6) that are stacked together, the second porcelain tube (9), the first porcelain tube (6), seal by middle seal ring (8) between the second porcelain tube (9), one end of the first porcelain tube (6) has moved end lid (4), one end of the second porcelain tube (9) has quiet end cap (18), moving conductive rod (2) and static conductive rod (11) lay respectively at the first porcelain tube (6), central axis direction in the second porcelain tube (9), and by contact assembly (16) contact, fairlead (13) is sleeved on the end on the moving conductive rod (2), and be positioned at the outside of moved end lid (4), bellows (14) is arranged on the moving conductive rod (2), one end of bellows (14) is positioned at moved end lid (4), and the other end of bellows (14) is positioned at protective cover (15); It is characterized in that the outer surface of the described first porcelain tube (6) and the second porcelain tube (9) is the circular groove type structure of band shirt rim, has retainer ring (3) outside the fairlead (13).
2,40.5 KV high-insulation vacuum switch tubes according to claim 1, it is characterized in that between described first porcelain tube (6) and the moved end lid (4) first sealing ring (5) being arranged, between described second porcelain tube (9) and the quiet end cap (18) second sealing ring (17) is arranged.
3,40.5 KV high-insulation vacuum switch tubes according to claim 2, it is characterized in that in the first porcelain tube (6) and the second porcelain tube (9) shielding cylinder (7) being arranged, the contact assembly (16) that is positioned at moving conductive rod (2) and static conductive rod (11) end is positioned at shielding cylinder (7).
4,40.5 KV high-insulation vacuum switch tubes according to claim 3 is characterized in that described shielding cylinder (7) is the oxygen-free copper shielding cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200832905U CN201369286Y (en) | 2009-01-08 | 2009-01-08 | 40.5 KV high-insulation vacuum switching pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200832905U CN201369286Y (en) | 2009-01-08 | 2009-01-08 | 40.5 KV high-insulation vacuum switching pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369286Y true CN201369286Y (en) | 2009-12-23 |
Family
ID=41488177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200832905U Expired - Fee Related CN201369286Y (en) | 2009-01-08 | 2009-01-08 | 40.5 KV high-insulation vacuum switching pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201369286Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400737A (en) * | 2011-08-16 | 2013-11-20 | 金海平 | Vacuum gap pipe with improved structure |
-
2009
- 2009-01-08 CN CNU2009200832905U patent/CN201369286Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400737A (en) * | 2011-08-16 | 2013-11-20 | 金海平 | Vacuum gap pipe with improved structure |
| CN103400737B (en) * | 2011-08-16 | 2015-10-14 | 国家电网公司 | A kind of structure improved vacuum gap 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: 20091223 Termination date: 20160108 |