CN203895353U - Three-station vacuum arc-extinguishing chamber with inserting type grounding station - Google Patents
Three-station vacuum arc-extinguishing chamber with inserting type grounding station Download PDFInfo
- Publication number
- CN203895353U CN203895353U CN201420285283.4U CN201420285283U CN203895353U CN 203895353 U CN203895353 U CN 203895353U CN 201420285283 U CN201420285283 U CN 201420285283U CN 203895353 U CN203895353 U CN 203895353U
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- China
- Prior art keywords
- contact
- moving contact
- insulating cylinder
- station
- grounding
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- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims description 14
- 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 4
- 230000007246 mechanism Effects 0.000 description 3
- 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
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model relates to a three-station vacuum arc-extinguishing chamber with an inserting type grounding switch, which comprises an insulating cylinder. Two ends of the insulating layer are respectively provided with a static contact and a moving contact. The contacting ends of the static contact and the moving contact respectively have an end board structure. A corrugated pipe which performs a sealing function sleeves the bottom of the end board of the moving contact. Two ends of the insulating cylinder are respectively provided with a sealing flange. The insulating cylinder, the sealing flanges, the static contact, the moving contact and the corrugated pipe together form a vacuum space. The insulating cylinder is internally provided with a grounding contact. One end of the grounding contract penetrates through the side wall of the insulating cylinder and is grounded. After the moving contact end board and the static contact end board are disengaged from contacting, the moving contact contacts with the grounding contact for forming a reliable electrical conduction. The three-station vacuum arc-extinguishing chamber provided by the utility model is applied on a three-station vacuum circuit breaker so that the circuit breaker obtains a grounding function.
Description
Technical field
The utility model relates to a kind of three station vacuum arc extinguish chambers with plug-in type ground connection station.
Background technology
Only have splitting or integrating two stations at existing vacuum interrupter, when the feeder line side opening circuit is overhauled, need earthing device, the no ground function of breaker body.
Summary of the invention
The problem that the utility model exists for above-mentioned prior art is made improvement, be that technical problem to be solved in the utility model is to provide a kind of three station vacuum arc extinguish chambers with plug-in type ground connection station, for three station vacuum circuit-breakers provide core parts, make breaker body there is grounding function, and adopt plug-in type ground connection, ground connection station has contact of earth self-retaining function, has simplified circuit interrupter grounding station operating mechanism.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of three station vacuum arc extinguish chambers with plug-in type ground connection station, comprise insulating cylinder, the two ends of described insulating cylinder are respectively arranged with fixed contact and moving contact, the end that described fixed contact and moving contact contact is tip plate configurations, described moving contact end plate bottom is arranged with the bellows sealing, the two ends of described insulating cylinder are also provided with sealing flange, described insulating cylinder, sealing flange, fixed contact, the common space that forms a vacuum of moving contact and bellows, it is characterized in that: in described insulating cylinder, be provided with grounding contact, described grounding contact is arranged on moving contact end plate bottom, one end of described grounding contact passes ground connection after insulating cylinder sidewall, described grounding contact comprises an annular panel around moving contact, on described annular panel, be provided with several metal lobes around moving contact, after described moving contact end plate and fixed contact end plate disengage, in described moving contact end plate insertion metal lobe formation cylindrical cavity, moving contact and grounding contact being formed reliably electrically conducts, the split-type grounding contact being formed by metal lobe, its limb has very large elasticity, can clamp the moving contact end plate inserting.
Further, between described grounding contact and bellows, be provided with the moving contact radome that shrouds bellows.
Further, in described insulating cylinder, be provided with the radome that shrouds fixed contact and moving contact.
Further, described insulating cylinder is ceramic making.
Further, described bellows and moving contact are welded into a whole, described bellows starting sealing function.
Further, described metal lobe is low by resistivity makes with Cu alloy material good springiness.
Compared with prior art, the utlity model has following beneficial effect:
The rated short circuit current breaking and making ability 1, with conventional arc control device, also has ground connection station;
2, ground connection station adopts plug-in type contact, does not need the external world that contact pressure is provided, and does not need switch-on latching device when contact of earth, has simplified the structure of three station operating mechanisms;
3, split-type grounding contact Cu alloy material low by resistivity and good springiness is made, and its limb has very large elasticity, can clamp the moving contact end plate of insertion, does not need the external world to provide contact pressure just can carry rated short circuit current.
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 the utility model embodiment.
Fig. 2 is the vertical view of grounding contact metal lobe in the utility model embodiment.
In figure: 1-insulating cylinder, 2-fixed contact, 21-fixed contact end plate, 3-moving contact, 31-moving contact end plate, 4-sealing flange, 5-moving contact radome, 6-bellows, 7-radome, 8-split-type grounding contact, 81-metal lobe.
Embodiment
Embodiment mono-: as shown in Figure 1 and 2, a kind of three station vacuum arc extinguish chambers with plug-in type ground connection station, 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, described insulating cylinder 1, sealing flange 4, fixed contact 2 and the common space that forms a vacuum of moving contact 3, the end that described fixed contact 2 and moving contact 3 contact is tip plate configurations, in described insulating cylinder 1, be provided with split-type grounding contact 8, described split-type grounding contact 8 comprises an annular panel around moving contact, on described annular panel, be provided with several metal lobes 81 around moving contact, after described moving contact end plate 31 disengages with fixed contact end plate 21, moving contact end plate 31 inserts metal lobe 81 and forms formation in cylindrical cavity and electrically conduct reliably, one end of described split-type grounding contact 8 passes ground connection after insulating cylinder sidewall.
In the present embodiment, described bellows 6 is welded into a whole with moving contact 3, and bellows moves with moving contact, starting sealing function.
In the present embodiment, for preventing being attached on bellows after switch splitting or integrating lock from producing the metallic vapour condensation that causes of electric arc, described split-type grounding contact 8 bottoms are provided with moving contact radome 5, described moving contact radome 5 bottoms are provided with and make moving contact end plate 31 and fixed contact end plate 21 keep the bellows 6 separating, and described split-type grounding contact 8 is arranged between moving contact end plate 31 and moving contact radome 5.
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, described insulating cylinder 1 is ceramic making.
In the present embodiment, described metal lobe 81 is low by resistivity to be made with Cu alloy material good springiness.
When use, moving contact disengages with fixed contact under external force, moving contact end plate 31 inserts in metal lobe 81 looping cavitys and forms and electrically conduct, metal lobe 81 forms split-type cylindrical cavity because have elasticity, can directly moving contact end plate 31 be held tightly, do not need the external world that contact pressure is provided, when contact of earth, do not need switch-on latching device, simplified the structure of three station operating mechanisms.
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 (6)
1. one kind has three station vacuum arc extinguish chambers of plug-in type ground connection station, comprise insulating cylinder, the two ends of described insulating cylinder are respectively arranged with fixed contact and moving contact, the end that described fixed contact and moving contact contact is tip plate configurations, described moving contact end plate bottom is arranged with the bellows sealing, the two ends of described insulating cylinder are also provided with sealing flange, described insulating cylinder, sealing flange, fixed contact, the common space that forms a vacuum of moving contact and bellows, it is characterized in that: in described insulating cylinder, be provided with grounding contact, described grounding contact is arranged on moving contact end plate bottom, one end of described grounding contact passes ground connection after insulating cylinder sidewall, described grounding contact comprises an annular panel around moving contact, on described annular panel, be provided with several metal lobes around moving contact, after described moving contact end plate and fixed contact end plate disengage, described moving contact end plate inserts in metal lobe formation cylindrical cavity moving contact and grounding contact formation is electrically conducted.
2. three station vacuum arc extinguish chambers with plug-in type ground connection station according to claim 1, is characterized in that: between described grounding contact and bellows, be provided with the moving contact radome that shrouds bellows.
3. three station vacuum arc extinguish chambers with plug-in type ground connection station according to claim 1, is characterized in that: in described insulating cylinder, be provided with the radome that shrouds fixed contact and moving contact.
4. three station vacuum arc extinguish chambers with plug-in type ground connection station according to claim 1, is characterized in that: described insulating cylinder is ceramic making.
5. three station vacuum arc extinguish chambers with plug-in type ground connection station according to claim 1, is characterized in that: described bellows and moving contact are welded into a whole, described bellows starting sealing function.
6. three station vacuum arc extinguish chambers with plug-in type ground connection station 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 |
|---|---|---|---|
| CN201420285283.4U CN203895353U (en) | 2014-05-30 | 2014-05-30 | Three-station vacuum arc-extinguishing chamber with inserting type grounding station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285283.4U CN203895353U (en) | 2014-05-30 | 2014-05-30 | Three-station vacuum arc-extinguishing chamber with inserting type grounding station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895353U true CN203895353U (en) | 2014-10-22 |
Family
ID=51721719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420285283.4U Expired - Lifetime CN203895353U (en) | 2014-05-30 | 2014-05-30 | Three-station vacuum arc-extinguishing chamber with inserting type grounding station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895353U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037012A (en) * | 2014-05-30 | 2014-09-10 | 国家电网公司 | Three-position vacuum arc-extinguishing chamber having insertion type grounding position |
| CN107004535A (en) * | 2014-11-17 | 2017-08-01 | 伊顿公司 | Vacuum switchgear and contact assembly and the method that electrical contact is fixed to its electrode |
| CN109994228A (en) * | 2017-12-29 | 2019-07-09 | 核工业西南物理研究院 | A kind of tandem electrification water route penetration piece for fusion reactor inlet side |
-
2014
- 2014-05-30 CN CN201420285283.4U patent/CN203895353U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037012A (en) * | 2014-05-30 | 2014-09-10 | 国家电网公司 | Three-position vacuum arc-extinguishing chamber having insertion type grounding position |
| CN104037012B (en) * | 2014-05-30 | 2016-02-24 | 国家电网公司 | A kind of three station vacuum arc extinguish chambers with plug-in type ground connection station |
| CN107004535A (en) * | 2014-11-17 | 2017-08-01 | 伊顿公司 | Vacuum switchgear and contact assembly and the method that electrical contact is fixed to its electrode |
| CN109994228A (en) * | 2017-12-29 | 2019-07-09 | 核工业西南物理研究院 | A kind of tandem electrification water route penetration piece for fusion reactor inlet side |
| CN109994228B (en) * | 2017-12-29 | 2024-03-19 | 核工业西南物理研究院 | A electrified water route penetration piece of series connection formula for fusion reactor vacuum side |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20160224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |