CN104051183A - Vacuum arc-extinguishing chamber with closing self-hold function - Google Patents
Vacuum arc-extinguishing chamber with closing self-hold function Download PDFInfo
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- CN104051183A CN104051183A CN201410236908.2A CN201410236908A CN104051183A CN 104051183 A CN104051183 A CN 104051183A CN 201410236908 A CN201410236908 A CN 201410236908A CN 104051183 A CN104051183 A CN 104051183A
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- insulating cylinder
- moving contact
- contact
- fixed contact
- bellows
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Abstract
The invention relates to a vacuum arc-extinguishing chamber with the closing self-hold function. The vacuum arc-extinguishing chamber comprises an insulating cylinder. The two ends of the insulating cylinder are provided with a fixed contact and a moving contact respectively and respectively provided with a sealing flange. The moving contact is sleeved with a corrugated pipe playing a role in sealing. A vacuum space is formed by the insulating cylinder, the sealing flanges, the fixed contact, the moving contact and the corrugated pipe. One end of the fixed contact and one end of the moving contact penetrate out of the insulating cylinder respectively. The end, inside the insulating cylinder, of the fixed contact is composed of a plurality of metal petals which are arranged in a circle in a surrounding mode. A cylindrical cavity is formed by the metal petals. The peripheral wall of the end, inside the insulating cylinder, of the moving contact is in an arc shape. The arc-shaped end is inserted into the cylindrical cavity so that the fixed contact and the moving contact can be electrically connected. According to the vacuum arc-extinguishing chamber with the closing self-hold function, contact pressure from the outside is not needed, and a switch operating mechanism is simplified.
Description
Technical field
The present invention 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 present invention is directed to above-mentioned prior art existence is made improvement, and technical problem to be solved by this invention is to provide a kind of vacuum interrupter with closed self-retaining function, and switch operation mechanism is simplified, simple in structure; And the splitting or integrating lock time that makes switch be easy to realize the technical indicator of < 25ms, improved disconnection, the making capacity of switch.
In order to solve the problems of the technologies described above, technical scheme of the present invention 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 present invention 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 present invention will be further described in detail.
Accompanying drawing explanation
Fig. 1 is the organigram of existing vacuum interrupter.
Fig. 2 is the organigram of the embodiment of the present invention.
Fig. 3 is the vertical view of split-type fixed contact in the embodiment of the present invention.
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 electric arc causes, in described insulating cylinder 1, be provided with the radome 7 around fixed contact 2 and moving contact 3.
In the present embodiment, for guaranteeing 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 electric arc causes, 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.
During use, by operating mechanism, make moving contact by quick insertion fixed contact cavity, formation electrically conducts, and while needing power-off, by operating mechanism, makes moving contact depart from fast fixed contact, and formation electrically disconnects.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (5)
1. a 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, 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.
2. the vacuum interrupter with closed self-retaining function according to claim 1, is characterized in that: in described insulating cylinder, be provided with the radome around fixed contact and moving contact.
3. the vacuum interrupter with closed self-retaining function according to claim 1, is characterized in that: described insulating cylinder is ceramic making.
4. 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.
5. 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 |
|---|---|---|---|
| CN201410236908.2A CN104051183A (en) | 2014-05-30 | 2014-05-30 | Vacuum arc-extinguishing chamber with closing self-hold function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410236908.2A CN104051183A (en) | 2014-05-30 | 2014-05-30 | Vacuum arc-extinguishing chamber with closing self-hold function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104051183A true CN104051183A (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410236908.2A Pending CN104051183A (en) | 2014-05-30 | 2014-05-30 | Vacuum arc-extinguishing chamber with closing self-hold function |
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| CN (1) | CN104051183A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019205239A1 (en) * | 2019-04-11 | 2020-10-15 | Siemens Aktiengesellschaft | Switching device for an electrical device and electrical system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751619A (en) * | 1971-07-01 | 1973-08-07 | Bbc Brown Boveri & Cie | Electrical contact structure of the plug-and-socket type circuit breakers |
| CN201877344U (en) * | 2010-11-17 | 2011-06-22 | 厦门明翰电气有限公司 | Pole post of vacuum circuit breaker |
| CN202230939U (en) * | 2011-08-04 | 2012-05-23 | 江苏维爱斯电器有限公司 | Novel vacuum switch pipe |
| JP2013222528A (en) * | 2012-04-13 | 2013-10-28 | Hitachi Ltd | Vacuum switch |
| CN203895352U (en) * | 2014-05-30 | 2014-10-22 | 国家电网公司 | Vacuum arc-extinguishing chamber with switching-on self-keeping function |
-
2014
- 2014-05-30 CN CN201410236908.2A patent/CN104051183A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751619A (en) * | 1971-07-01 | 1973-08-07 | Bbc Brown Boveri & Cie | Electrical contact structure of the plug-and-socket type circuit breakers |
| CN201877344U (en) * | 2010-11-17 | 2011-06-22 | 厦门明翰电气有限公司 | Pole post of vacuum circuit breaker |
| CN202230939U (en) * | 2011-08-04 | 2012-05-23 | 江苏维爱斯电器有限公司 | Novel vacuum switch pipe |
| JP2013222528A (en) * | 2012-04-13 | 2013-10-28 | Hitachi Ltd | Vacuum switch |
| CN203895352U (en) * | 2014-05-30 | 2014-10-22 | 国家电网公司 | Vacuum arc-extinguishing chamber with switching-on self-keeping function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019205239A1 (en) * | 2019-04-11 | 2020-10-15 | Siemens Aktiengesellschaft | Switching device for an electrical device and electrical system |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140917 |
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| RJ01 | Rejection of invention patent application after publication |