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
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- 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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- contact
- moving contact
- insulating cylinder
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- end plate
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Abstract
本实用新型涉及一种具有插入式接地工位的三工位真空灭弧室，包括绝缘筒，所述绝缘筒的两端分别设置有静触头和动触头，所述静触头和动触头相接触的端部均为端板结构，所述动触头端板底部套设有起密封作用的波纹管，所述绝缘筒的两端还均设置有密封法兰，所述绝缘筒、密封法兰、静触头、动触头和波纹管共同构成一个真空的空间，所述绝缘筒内设置有接地触头，所述接地触头的一端穿出绝缘筒侧壁后接地，所述动触头端板与静触头端板脱离接触后，动触头与接地触头相接触形成可靠电性导通，本装置应用在三工位真空断路器上，使断路器具有接地功能。
The utility model relates to a three-station vacuum interrupter with a plug-in grounding station, which comprises an insulating cylinder, the two ends of the insulating cylinder are respectively provided with static contacts and moving contacts, and the static contacts and the moving The ends where the contacts are in contact are all end plate structures, the bottom of the moving contact end plate is covered with a bellows for sealing, and the two ends of the insulating cylinder are also provided with sealing flanges. , sealing flange, static contact, moving contact and bellows together form a vacuum space, the insulating cylinder is provided with a grounding contact, and one end of the grounding contact is grounded after passing through the side wall of the insulating cylinder. After the moving contact end plate is out of contact with the static contact end plate, the moving contact contacts with the grounding contact to form a reliable electrical conduction. This device is applied to a three-station vacuum circuit breaker to make the circuit breaker have 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 |
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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 tandem electrified waterway penetration for the vacuum side of fusion reactors |
-
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 tandem electrified waterway penetration for the vacuum side of fusion reactors |
| 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 |