CN203895352U - Vacuum arc-extinguishing chamber with switching-on self-keeping function - Google Patents
Vacuum arc-extinguishing chamber with switching-on self-keeping function Download PDFInfo
- Publication number
- CN203895352U CN203895352U CN201420285234.0U CN201420285234U CN203895352U CN 203895352 U CN203895352 U CN 203895352U CN 201420285234 U CN201420285234 U CN 201420285234U CN 203895352 U CN203895352 U CN 203895352U
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- China
- Prior art keywords
- insulating cylinder
- moving contact
- contact
- fixed contact
- bellows
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- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model relates to a vacuum arc-extinguishing chamber with a switching-on self-keeping function, which comprises an insulating cylinder. Two ends of the insulating cylinder are respectively provided with a static contact and a moving contact. Two ends of the insulating cylinder are respectively provided with a sealing flange. A corrugated pipe which performs a sealing function sleeves the moving contact. The insulating cylinder, the sealing flange, the static contact, the moving contact and the corrugated pipe together form a vacuum space. One end of the static contact and one end of the moving contact respectively penetrate through the insulating cylinder. The static contact is composed of a plurality of metal sheets which are arranged in a circle at one end of the insulating cylinder. The metal sheets form a cylindrical chamber. The end circumferential wall of the moving contact in the insulating cylinder is arc-shaped. The arc-shaped end is inserted into the cylindrical chamber for forming electrical connection between the static contact and the moving contact. The vacuum arc-extinguishing chamber provided by the utility model does not require contact pressure from outside and simplifies a switch operating mechanism.
Description
Technical field
The utility model relates to a kind of vacuum interrupter with closed self-retaining function.
Background technology
As shown in Figure 1, traditional on-load switch vacuum interrupter, fixed contact 2 and moving contact 3 are board joint touch, and traditional vacuum load switch is that the flat moving contact 3 being promoted in arc control device by mechanical transmission mechanism by spring operating mechanism is realized feed motion.Because 3 quality of flat movable contact are unfavorable for that greatly feed motion accelerates, contact need to provide contact pressure by spring after closing a floodgate, operating mechanism making process need to overcome the rear combined floodgate padlock of contact stage clip acting, and therefore traditional vacuum load switch is difficult to realize splitting or integrating lock time < 40ms.And operating mechanism complex structure.
Summary of the invention
The problem that the utility model exists for above-mentioned prior art is made improvement, and technical problem to be solved in the utility model is to provide a kind of vacuum interrupter with closed self-retaining function, and switch operation mechanism is simplified, simple in structure; And make the splitting or integrating lock time of switch be easy to realize the technical indicator of < 25ms, improve disconnection, the making capacity of switch.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of vacuum interrupter with closed self-retaining function, comprise insulating cylinder, the two ends of described insulating cylinder are respectively arranged with fixed contact and moving contact, the two ends of described insulating cylinder are also provided with sealing flange, on described moving contact, be arranged with the bellows sealing, described insulating cylinder, sealing flange, fixed contact, the common space that forms a vacuum of moving contact and bellows, described fixed contact and moving contact are all that one end passes outside insulating cylinder, the metal lobe that the end of described fixed contact in insulating cylinder rung into a circle by several forms, described metal lobe forms a cylindrical cavity, the end week sidewall of described moving contact in insulating cylinder is curved, this curved end inserts cylindrical cavity electrically conducts fixed contact and moving contact formation.
Further, described bellows and moving contact are welded into a whole, starting sealing function.
Further, in described insulating cylinder, be provided with the radome around fixed contact and moving contact.
Further, described insulating cylinder is ceramic making.
Further, between described moving contact curved end and bellows, be provided with the moving contact radome that shrouds bellows.
Further, described metal lobe is low by resistivity to be made with Cu alloy material good springiness, and limb has very large elasticity, can clamp the moving contact of insertion, does not need the external world to provide contact pressure just can carry rated short circuit current.
Compared with prior art, the utlity model has following beneficial effect:
1, contact quality is light, is conducive to improve splitting or integrating lock speed;
2, plug-in type contact has self-closing power, does not need the external world that contact pressure is provided, and the operating mechanism power that only need to close a floodgate, does not need switch-on latching device, has simplified operating mechanism;
3, split-type fixed contact Cu alloy material low by resistivity and good springiness is made, and its limb has very large elasticity, can clamp the moving contact of insertion, does not need the external world to provide contact pressure just can carry rated short circuit current;
4, arc surface electric contact very easily inserts fixed contact.
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Brief description of the drawings
Fig. 1 is the organigram of existing vacuum interrupter.
Fig. 2 is the organigram of the utility model embodiment.
Fig. 3 is the vertical view of split-type fixed contact in the utility model embodiment.
In figure: 1-insulating cylinder, 2-fixed contact, 21-metal lobe, 3-moving contact, 31-curved end, 4-sealing flange, 5-moving contact radome, 6-bellows, 7-radome.
Embodiment
Embodiment mono-: as shown in Fig. 2 ~ 3, a kind of vacuum interrupter with closed self-retaining function, comprise insulating cylinder 1, the two ends of described insulating cylinder 1 are respectively arranged with fixed contact 2 and moving contact 3, the two ends of described insulating cylinder 1 are also provided with sealing flange 4, on described moving contact 3, be arranged with the bellows 6 sealing, described insulating cylinder 1, sealing flange 4, fixed contact 2, moving contact 3 and the common space that forms a vacuum of bellows 6, described fixed contact 2 and moving contact 3 are all that one end passes outside insulating cylinder 1, the metal lobe 21 that the end of described fixed contact 2 in insulating cylinder 1 rung into a circle by several forms, described metal lobe 21 forms a cylindrical cavity, the end week sidewall of described moving contact 3 in insulating cylinder 1 is curved, this curved end 31 inserts cylindrical cavity makes fixed contact 2 form and electrically conduct with moving contact 3.
In the present embodiment, described bellows 6 is welded into a whole with moving contact 3, starting sealing function.
In the present embodiment, for preventing being attached on insulating cylinder madial wall after switch splitting or integrating lock from producing the metallic vapour condensation that causes of electric arc, in described insulating cylinder 1, be provided with the radome 7 around fixed contact 2 and moving contact 3.
In the present embodiment, for ensureing insulation, described insulating cylinder is ceramic making.
In the present embodiment, for preventing being attached on bellows 6 after switch splitting or integrating lock from producing the metallic vapour condensation that causes of electric arc, between described moving contact curved end and bellows, be provided with the moving contact radome 5 that shrouds bellows.
In the present embodiment, described metal lobe 21 is low by resistivity to be made with Cu alloy material good springiness, and limb has very large elasticity, can clamp the moving contact 3 of insertion, does not need the external world to provide contact pressure just can carry rated short circuit current.
When use, make moving contact by quick insertion fixed contact cavity by operating mechanism, formation electrically conducts, and while needing power-off, makes moving contact depart from fast fixed contact by operating mechanism, and formation electrically disconnects.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (4)
1. one kind has the vacuum interrupter of closed self-retaining function, comprise insulating cylinder, the two ends of described insulating cylinder are respectively arranged with fixed contact and moving contact, the two ends of described insulating cylinder are also provided with sealing flange, on described moving contact, be arranged with the bellows sealing, described insulating cylinder, sealing flange, fixed contact, the common space that forms a vacuum of moving contact and bellows, it is characterized in that: described fixed contact and moving contact are all that one end passes outside insulating cylinder, the metal lobe that the end of described fixed contact in insulating cylinder rung into a circle by several forms, described metal lobe forms a cylindrical cavity, the end week sidewall of described moving contact in insulating cylinder is curved, this curved end inserts cylindrical cavity electrically conducts fixed contact and moving contact formation, in described insulating cylinder, be provided with the radome around fixed contact and moving contact.
2. the vacuum interrupter with closed self-retaining function according to claim 1, is characterized in that: described insulating cylinder is ceramic making.
3. the vacuum interrupter with closed self-retaining function according to claim 1, is characterized in that: between described moving contact curved end and bellows, be provided with the moving contact radome that shrouds bellows.
4. the vacuum interrupter with closed self-retaining function according to claim 1, is characterized in that: described metal lobe is low by resistivity to be made with Cu alloy material good springiness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285234.0U CN203895352U (en) | 2014-05-30 | 2014-05-30 | Vacuum arc-extinguishing chamber with switching-on self-keeping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285234.0U CN203895352U (en) | 2014-05-30 | 2014-05-30 | Vacuum arc-extinguishing chamber with switching-on self-keeping function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895352U true CN203895352U (en) | 2014-10-22 |
Family
ID=51721718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420285234.0U Active CN203895352U (en) | 2014-05-30 | 2014-05-30 | Vacuum arc-extinguishing chamber with switching-on self-keeping function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895352U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051183A (en) * | 2014-05-30 | 2014-09-17 | 国家电网公司 | Vacuum arc-extinguishing chamber with closing self-hold function |
| CN113161193A (en) * | 2020-11-27 | 2021-07-23 | 平高集团有限公司 | Vacuum circuit breaker and vacuum arc-extinguishing chamber |
| CN113611550A (en) * | 2021-07-27 | 2021-11-05 | 中国科学院合肥物质科学研究院 | Fast mechanical switch for bearing large current |
-
2014
- 2014-05-30 CN CN201420285234.0U patent/CN203895352U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051183A (en) * | 2014-05-30 | 2014-09-17 | 国家电网公司 | Vacuum arc-extinguishing chamber with closing self-hold function |
| CN113161193A (en) * | 2020-11-27 | 2021-07-23 | 平高集团有限公司 | Vacuum circuit breaker and vacuum arc-extinguishing chamber |
| CN113161193B (en) * | 2020-11-27 | 2022-08-30 | 平高集团有限公司 | Vacuum circuit breaker and vacuum arc extinguish chamber |
| CN113611550A (en) * | 2021-07-27 | 2021-11-05 | 中国科学院合肥物质科学研究院 | Fast mechanical switch for bearing large current |
| CN113611550B (en) * | 2021-07-27 | 2023-06-30 | 中国科学院合肥物质科学研究院 | Quick mechanical switch for bearing large current |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |