CN202905578U - Ceramic vacuum switch tube for solid-sealed polar pole - Google Patents
Ceramic vacuum switch tube for solid-sealed polar pole Download PDFInfo
- Publication number
- CN202905578U CN202905578U CN 201220611976 CN201220611976U CN202905578U CN 202905578 U CN202905578 U CN 202905578U CN 201220611976 CN201220611976 CN 201220611976 CN 201220611976 U CN201220611976 U CN 201220611976U CN 202905578 U CN202905578 U CN 202905578U
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- China
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- cover plate
- tube core
- moving
- quiet
- porcelain shell
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- Expired - Fee Related
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Abstract
Disclosed is a ceramic vacuum switch tube for a solid-sealed polar pole. The ceramic vacuum switch tube has advantages of low contact resistance, high level of internal insulation, long mechanical life, reliable performance and free maintenance. The ceramic vacuum switch tube has a moving tube core and a fixed tube core which are positioned on the same axis. A moving cover plate and a fixed cover plate are respectively arranged in the moving tube core and the fixed tube core. A ceramic shell assembly is connected between the moving cover plate and the fixed cover plate. The ceramic shell assembly is composed of a ceramic shell, a shielding cylinder welded on a metalized boss on the inner wall of the ceramic shell and sealing rings seal-welded at two ends of the ceramic shell. The specialty of the utility model lies in that: the moving cover plate is two times higher than the fixed cover plate; the metalized boss is positioned at the central of the inner wall of the ceramic shell; the center of the shielding cylinder faces the center of the ceramic shell; during opening, the center of the gap between a moving contact of the moving tube core and a fixed contact of the fixed tube core faces the center of the shielding cylinder; a static conducting rod has a thin top and a thick bottom with smooth transition from the top to the bottom; an elastic claw is arranged on an end of the sealing ring opposite to the moving cover plate and the fixed cover plate; and the moving cover plate and the fixed cover plate are located through the elastic claw.
Description
Technical field
The utility model is particularly related to a kind of pole ceramic vacuum switch pipe.
Background technology
The third generation insulation of vacuum switch tube claims again the pole type insulation, and it is all sealed vacuum switch tube and upper lower wire end by epoxy resin, makes it become a global facility of vacuum circuit-breaker.The advantage of pole is to have high insulation property and the powerful ectocine ability of resisting, and is applicable to the environment such as high temperature, high humidity, high height above sea level and uses.Pole reduces the error that may occur in the pole assembling process, guarantees the security reliability of vacuum circuit-breaker, realizes the non-maintaining of real meaning.Pole makes the external insulation of vacuum switch tube be able to abundant assurance, makes under the prerequisite of same electric current and electric pressure, realizes the miniaturization of switching tube product.The pole product has above these advantages, but the appearance of pole product, project organization to vacuum switch tube has proposed requirements at the higher level: the switching tube product miniaturization of (1) pole, requirement to the switching tube built-in electrical insulation is harsher, so essential balanced internal magnetic field distributes and optimizes Electric Field Distribution.(2) because the globality characteristics of pole determine that its radiating condition is relatively abominable, and temperature rise has become to develop the emphasis of this series products, therefore must reduce the loop resistance of vacuum switch tube.(3) for satisfying the non-maintaining characteristics of pole product, the design of vacuum switch tube is essential to be considered to improve useful life, to reduce the O﹠M cost of circuit breaker.Existing pole is difficult to satisfy above requirement with the ceramic vacuum switch.
Summary of the invention
It is little that technical problem to be solved in the utility model provides a kind of contact resistance, and the built-in electrical insulation level is high, and mechanical endurance is long, dependable performance, non-maintaining pole ceramic vacuum switch pipe.
The utility model is achieved in that it comprises mutual correspondence and is positioned at moved end tube core and quiet end tube core on the same axis, in moved end tube core and quiet end tube core, be respectively equipped with moved end cover plate and quiet end casing, between moved end cover plate and quiet end casing, be connected be enclosed within moving, the porcelain shell component of quiet end tube core outside, porcelain shell component is by the porcelain shell, being welded on shielding cylinder on the porcelain shell inwall metallization boss and the sealing ring of the sealed at both ends welding of porcelain shell consists of, its special character is: described moved end cover plate height is two times of quiet end casing height, described metallization boss is positioned at the middle place of inwall of porcelain shell, the shielding cylinder center is located in the middle of the porcelain shell, open apart from the time moving tube core moving contact, the center, gap of the fixed contact of quiet tube core is located in the middle of shielding cylinder, rounding off between the up-thin-low-thick and thin segment of described static conductive rod and the thick section, described sealing ring and moved end cover plate and quiet end casing opposite end are elastic claw, locate by elastic claw between moved end cover plate and the quiet end casing.
Above-mentioned pole ceramic vacuum switch pipe, described sealing ring material is oxygen-free copper.
The utility model has the advantages that:
1, lengthens by the moved end cover plate, make the contact of dynamic and static tube core still be docked at the interior middle place of shielding cylinder, when dynamic and static contact is cut-off in the middle of the porcelain shell, bellows still can guarantee enough node numbers, guarantee switching tube longer mechanical endurance, and make switching tube internal electric field branch more even, improve the built-in electrical insulation level.
2, rounding off between the up-thin-low-thick and thin segment of static conductive rod and the thick section makes not only that the switching tube contact resistance is little, good heat dissipation, and the clearance for insulation of static conductive rod and shielding cylinder is large, makes internal electric field branch even, raising built-in electrical insulation level.
3, adopt the elastic claw on the sealing ring to locate, guarantee moved end tube core and quiet end tube core axiality, the homogeneous tube contact resistance is little, bounces little dependable performance.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the static conductive rod structural representation;
Fig. 3 is A section enlarged drawing among Fig. 1;
Fig. 4 is B section enlarged drawing among Fig. 1.
Among the figure: moving conductive rod 1, fairlead 2, fairlead locating ring 3, moved end cover plate 4, bellows 5, sealing ring 6; sealing ring elastic claw 601, protective cover 7, welding ring 8, shielding cylinder 9, moving contact 10, porcelain shell 11; fixed contact 12, static conductive rod 13, thin segment 1301, thick section 1302, quiet end casing 14.
Embodiment
As shown in the figure; the utility model comprises mutual correspondence and is positioned at moved end tube core and quiet end tube core on the same axis; described moved end tube core comprises moving conductive rod 1; on moving conductive rod 1, be provided with successively from the bottom to top moving contact 10, protective cover 7, welding ring 8; bellows 5, moved end cover plate 4 and fairlead locating ring 3 are installed with the fairlead 2 that is enclosed within on the moving conductive rod 1 in fairlead locating ring 3.Described quiet end tube core is that the fixed contact 11 and the quiet end casing 14 that are located on the static conductive rod 12 by static conductive rod 12, successively consist of, rounding off between described static conductive rod 13 up-thin-low-thick and thin segment 1301 and the thick section 1302.Between described moved end cover plate 4 and quiet end casing 14, be connected with porcelain shell component, described porcelain shell component is enclosed within moved end tube core and quiet end tube core outside, porcelain shell component is by porcelain shell 13, is welded on the shielding cylinder 9 on the metallization boss 1301 of porcelain shell 13 inwalls and consists of by the sealing ring 6 of seal welding at porcelain shell 13 two ends, the center of shielding cylinder 9 is over against the centre of porcelain shell 13, described sealing ring 6 materials are oxygen-free copper, and described porcelain shell 11 welds with moved end cover plate 4 and quiet end casing 14 location sealings respectively by the sealing ring 6 at its two ends.
The height of described moved end cover plate 4 is two times of height of quiet end casing 14, described metallization boss 1301 is positioned at the middle place of inwall of porcelain shell 13, open apart from the time moving contact 10, fixed contact 12 place in the middle of the shielding cylinder 9, center, gap, described sealing ring 6 is elastic claw 601 with moved end cover plate 4 and quiet end casing opposite end, by elastic claw 601 location, guarantee the axiality of dynamic and static tube core.
Claims (2)
1. pole ceramic vacuum switch pipe, comprise mutual correspondence and be positioned at moved end tube core and quiet end tube core on the same axis, in moved end tube core and quiet end tube core, be respectively equipped with moved end cover plate and quiet end casing, between moved end cover plate and quiet end casing, be connected be enclosed within moving, the porcelain shell component of quiet end tube core outside, porcelain shell component is by the porcelain shell, being welded on shielding cylinder on the porcelain shell inwall metallization boss and the sealing ring of the sealed at both ends welding of porcelain shell consists of, it is characterized in that: the height of described moved end cover plate is two times of height of quiet end casing, the protruding middle place of inwall that is positioned at the porcelain shell of described metallization, the shielding cylinder center is located in the middle of the porcelain shell, open apart from the time moving tube core moving contact, the center, gap of the fixed contact of quiet tube core is located in the middle of shielding cylinder, rounding off between the up-thin-low-thick and thin segment of described static conductive rod and the thick section, described sealing ring and moved end cover plate and quiet end casing opposite end are provided with elastic claw, locate by elastic claw between moved end cover plate and the quiet end casing.
2. pole ceramic vacuum switch pipe according to claim 1, it is characterized in that: described sealing ring material is oxygen-free copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611976 CN202905578U (en) | 2012-11-19 | 2012-11-19 | Ceramic vacuum switch tube for solid-sealed polar pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611976 CN202905578U (en) | 2012-11-19 | 2012-11-19 | Ceramic vacuum switch tube for solid-sealed polar pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905578U true CN202905578U (en) | 2013-04-24 |
Family
ID=48126212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220611976 Expired - Fee Related CN202905578U (en) | 2012-11-19 | 2012-11-19 | Ceramic vacuum switch tube for solid-sealed polar pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905578U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783371A (en) * | 2017-01-06 | 2017-05-31 | 中科电力装备（安徽）智能化科技有限公司 | A kind of vacuum extinction cell structure of breaker |
| CN108321004A (en) * | 2018-02-27 | 2018-07-24 | 北京京东方真空电器有限责任公司 | A kind of pole |
-
2012
- 2012-11-19 CN CN 201220611976 patent/CN202905578U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783371A (en) * | 2017-01-06 | 2017-05-31 | 中科电力装备（安徽）智能化科技有限公司 | A kind of vacuum extinction cell structure of breaker |
| CN106783371B (en) * | 2017-01-06 | 2018-12-14 | 安徽通球智能化科技有限公司 | A kind of vacuum extinction cell structure of breaker |
| CN108321004A (en) * | 2018-02-27 | 2018-07-24 | 北京京东方真空电器有限责任公司 | A kind of pole |
| CN108321004B (en) * | 2018-02-27 | 2024-04-30 | 北京京东方真空电器有限责任公司 | Pole post |
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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: 20130424 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |