CN103311046B - Isolation/grounding vacuum arc extinguishing tube - Google Patents
Isolation/grounding vacuum arc extinguishing tube Download PDFInfo
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- CN103311046B CN103311046B CN201310232162.3A CN201310232162A CN103311046B CN 103311046 B CN103311046 B CN 103311046B CN 201310232162 A CN201310232162 A CN 201310232162A CN 103311046 B CN103311046 B CN 103311046B
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- insulation crust
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- main contact
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Abstract
The invention discloses an isolation/grounding vacuum arc extinguishing tube which comprises a first electrode, an insulating shell and a second electrode. The first electrode is mounted at one end of the insulating shell. The second electrode is mounted at the other end of the insulating shell. One end of the first electrode is located on the outer side of the insulating shell. The other end of the first electrode extends into the insulating shell. The end, extending into the insulating shell, of the first electrode is provided with a first main contact. A first auxiliary contact which is located in the insulating shell is disposed on the periphery the first electrode or inside the first electrode. A second main contact opposite to the first main contact is disposed at the top end of the second electrode. A second auxiliary contact which is located in the insulating shell is disposed on the periphery the second electrode or inside the second electrode. The first auxiliary contact and the second auxiliary contact are distributed at intervals. The interior of the insulating shell is vacuum. Vacuum is used as insulating medium by the isolation/grounding vacuum arc extinguishing tube, the electrode contacts for bearing voltage and the electrode contacts for bearing current and extinguishing arcs are separated, and the surface status of the contacts for isolation is totally unchanged during the whole service lives.
Description
[technical field]
The present invention relates to the control element in a kind of switchgear, particularly a kind ofly can carry out opening and closing by driving device in the line and form the isolation/ground connection vacuum extinction pipe of fracture.
[background technology]
In order to satisfied maintenance is connected with change loop in switchgear, usually to circuit arrange a kind of safe, can the isolating/grounding switch of opening and closing, this isolating/grounding switch is normally using air or other gas as the dielectric of fracture.When right air or other gas are the dielectric of fracture, required clearance for insulation is comparatively large, is unfavorable for the miniaturization of isolating/grounding switch.
[summary of the invention]
The object of the invention is to be to provide and a kind of can suit faradic isolation/ground connection vacuum extinction pipe using vacuum as dielectric, its electrode contact bearing voltage separates with the electrode contact bearing electric current and arc-suppression function, and any change does not occur the contact contact surface state in whole life cycle completing isolation features.
To achieve these goals, the present invention adopts following technical scheme:
A kind of isolation/ground connection vacuum extinction pipe, comprises the first electrode, the first auxiliary contact, the first main contact, insulation crust, the second main contact, the second auxiliary contact and the second electrode; One end of insulation crust is provided with the first electrode, and the other end is provided with the second electrode; First electrode one end is positioned at outside insulation crust, and the other end stretches in insulation crust, and the first electrode one end stretched in insulation crust is provided with the first main contact; The periphery of the first electrode or inside are provided with the first auxiliary contact being positioned at insulation crust; The top of the second electrode is provided with second main contact relative with the first main contact, and the periphery of the second electrode or inside are provided with the second auxiliary contact being positioned at insulation crust; First auxiliary contact and the second auxiliary contact are intervally arranged; First electrode, the first auxiliary contact and the first main contact are electrically connected; Second main contact, the second auxiliary contact and the second electrode are electrically connected; Be vacuum in insulation crust.
The present invention further improves and is: have relative motion when described first main contact and the second main contact separating brake; Separating final position, be in the position lower than the first auxiliary contact and the second auxiliary contact radial water plane respectively.
The present invention further improves and is: described first electrode is moving electrode, and one end that moving electrode is positioned at outside insulation crust connects mechanical actuation device; Described second electrode is fixed electrode.
The present invention further improves and is: moving electrode is fixedly connected with the first flexible member being positioned at insulation crust.
The present invention further improves and is: described first flexible member is bellows.
The present invention further improves and is: described first electrode is moving electrode, and conductive electrode one end be positioned at outside insulation crust connects the first mechanical actuation device; Described second electrode is the second moving electrode; Second moving electrode one end be positioned at outside insulation crust connects the second mechanical actuation device, and the top, one end that the second moving electrode is positioned at inside insulation crust is provided with the second main contact.
The present invention further improves and is: moving electrode is fixedly connected with the first flexible member being positioned at insulation crust; Second moving electrode is fixedly connected with the second flexible member being positioned at insulation crust.
The present invention further improves and is: described first flexible member and the second flexible member are bellows.
The present invention further improves and is: the first main contact and the second main contact are all in tabular.
The present invention further improves and is: the periphery of the first main contact and the flat joint of the second main contact is provided with main shield, and main shield is fixed on the inwall of insulation crust.
The present invention further improves and is: insulation crust and main shield are transparent or transparent materials is made.
Compared with prior art, beneficial effect of the present invention is: a kind of isolation/ground connection vacuum extinction of the present invention pipe, arranging two electrode contacts in pipe (can be two kinds of forms of expression: one is a moving contact and quiet (a fixing) contact, another kind is two moving contacts), the electrical communication closing and separately assume responsibility in circuit of two electrode contacts and isolation features, maintain the gas pressure can bearing insulation level in the inherent whole life cycle of pipe, and visible isolation fracture can be realized; Two auxiliary contacts of two electrodes keep initial condition constant in whole life cycle, only bear voltage and complete isolation features; Two main contacts of two electrodes complete the break-make of electricity and the function of extinguish arcs; For user, the contact of this isolation/ground connection vacuum extinction pipe is in vacuum tank in whole life cycle, is not affected by the external environment, and is easy to realize non-maintaining; Isolation and arc extinguishing two functions can be realized, do not need other element of setting up to carry out arc extinguishing; Fracture can be directly obviously visible/or invisible.Vacuum extinction pipe of the present invention take vacuum as dielectric, and good insulation preformance, is conducive to the miniaturization of isolating/grounding switch.
[accompanying drawing explanation]
Fig. 1 a is in the structural representation of closure state for vacuum extinction pipe shown in the embodiment of the present invention one; Fig. 1 b is in the structural representation of isolation for vacuum extinction pipe shown in Fig. 1 a;
Fig. 1 c is in the structural representation of closure state for vacuum extinction pipe shown in the embodiment of the present invention two; Fig. 1 d is in the structural representation of isolation for vacuum extinction pipe shown in Fig. 1 c;
Fig. 2 a is in the structural representation of closure state for vacuum extinction pipe shown in the embodiment of the present invention three; Fig. 2 b is in the structural representation of isolation for vacuum extinction pipe shown in Fig. 2 a;
Fig. 2 c is in the structural representation of closure state for vacuum extinction pipe shown in the embodiment of the present invention four; Fig. 2 d is in the structural representation of isolation for vacuum extinction pipe shown in Fig. 2 c.
[embodiment]
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Embodiment one
Refer to shown in Fig. 1 a and Fig. 1 b, a kind of isolation/ground connection vacuum extinction of the present invention pipe, comprises moving electrode 1, flexible member 2, first auxiliary contact 3, first main contact 4, insulation crust 5, main shield 6, second main contact 42, second auxiliary contact 32, fixed electrode 7 and cover plate 8.One end of insulation crust 5 is provided with moving electrode 1, and moving electrode 1 one end is positioned at outside insulation crust 5, and the other end stretches in insulation crust 5, and moving electrode 1 one end stretched in insulation crust 5 is provided with flat first main contact 4; The periphery of moving electrode 1 is provided with the first auxiliary contact 3 being positioned at insulation crust 5; The other end of insulation crust 5 is provided with fixed electrode 7, and the top of fixed electrode 7 is provided with tabular second main contact 42 relative with the first main contact 4, and the periphery of fixed electrode 7 is provided with the second auxiliary contact 32 being positioned at insulation crust 5.The bottom of insulation crust 5 is provided with cover plate 8, is vacuum in insulation crust 5.Moving electrode 1 is fixedly connected with flexible member 2, to maintain insulation crust 5 inside when motion for vacuum state.Flexible member 2 can select bellows.The periphery of the first main contact 4 and the flat joint of the second main contact 42 is provided with main shield 6, and main shield 6 is fixed on the inwall of insulation crust 5.An electrode is divided into main contact and auxiliary contact by the present invention, and in the present embodiment, auxiliary contact keeps initial condition constant in whole life cycle, only bears voltage and completes isolation features; Other main contact completes the break-make of electricity and the function of extinguish arcs.Insulation crust 5 and main shield 6 can adopt transparent (glass) or opaque material, and the realization of employing transparent material is directly visual to contact state (close, separate).Moving electrode 1, first auxiliary contact 3 and the first main contact 4 are electrically connected, and are in same point position; Second main contact 42, second auxiliary contact 32 and fixed electrode 7 are electrically connected, and are in same point position.
Moving electrode 1 and the external world build mechanical actuation device and are connected; During use, drive moving electrode 1 to move by the mechanical actuation device of outside, complete energising/arc extinguishing and isolation features.Auxiliary contact (the first auxiliary contact 3, second auxiliary contact 32) keeps initial condition constant in whole life cycle, only bears voltage and completes isolation features; Other main contact (the first main contact 4, second main contact 42) completes the break-make of electricity and the function of extinguish arcs.
Embodiment two
Refer to shown in Fig. 1 c and Fig. 1 d, embodiment two is with the difference part of embodiment one: it is inner that the first auxiliary contact 3 is arranged at moving electrode 1, and it is inner that the second auxiliary contact 32 is arranged at fixed electrode 7; During use, drive moving electrode 1 to move by the mechanical actuation device of outside, complete energising/arc extinguishing and isolation features.The first auxiliary contact 3, second auxiliary contact 32 being positioned at moving electrode 1 and fixed electrode 7 inside keeps initial condition constant in whole life cycle, only bears voltage and completes isolation features; The first main contact 4, second main contact 42 in addition completes the break-make of electricity and the function of extinguish arcs.
Embodiment three
Refer to shown in Fig. 2 a and Fig. 2 b, embodiment three is with the difference part of embodiment two: fixed electrode 7 is replaced to second moving electrode 12 identical with moving electrode 1; Second moving electrode 12 one end is positioned at outside insulation crust 5 and connects outside mechanical actuation device, and the other end of the second moving electrode 12 is positioned at insulation crust 5 inside, and second moving electrode 12 one end stretched in insulation crust 5 is provided with flat second main contact 42; Second moving electrode 12 is fixedly connected with the second flexible member 22, and the second flexible member 22 can select bellows.With the difference of embodiment one, embodiment two is that moving electrode 1 and the second moving electrode 12 are float electrode, during use, drive moving electrode 1 and the second moving electrode 12 to move simultaneously, complete energising/arc extinguishing and isolation features by the mechanical actuation device of outside.First auxiliary contact 3, second auxiliary contact 32 keeps initial condition constant in whole life cycle, only bears voltage and completes isolation features; First main contact 4, second main contact 42 completes the break-make of electricity and the function of extinguish arcs.
Embodiment four
Refer to shown in Fig. 2 c and Fig. 2 d, embodiment four is with the difference part of embodiment three: it is inner that the first auxiliary contact 3 is arranged at moving electrode 1, and it is inner that the second auxiliary contact 32 is arranged at the second moving electrode 12; During use, drive moving electrode 1 and the second moving electrode 12 to move by the mechanical actuation device of outside simultaneously, complete energising/arc extinguishing and isolation features.First auxiliary contact 3, second auxiliary contact 32 keeps initial condition constant in whole life cycle, only bears voltage and completes isolation features; First main contact 4, second main contact 42 completes the break-make of electricity and the function of extinguish arcs.
Claims (7)
1. an isolation/ground connection vacuum extinction pipe, it is characterized in that, comprise the first electrode, the first auxiliary contact (3), the first main contact (4), insulation crust (5), the second main contact (42), the second auxiliary contact (32) and the second electrode; One end of insulation crust (5) is provided with the first electrode, and the other end is provided with the second electrode; First electrode one end is positioned at insulation crust (5) outside, and the other end stretches in insulation crust (5), and the first electrode one end stretched in insulation crust (5) is provided with the first main contact (4); The periphery of the first electrode or inside are provided with the first auxiliary contact (3) being positioned at insulation crust (5); The top of the second electrode is provided with second main contact (42) relative with the first main contact (4), and the periphery of the second electrode or inside are provided with the second auxiliary contact (32) being positioned at insulation crust (5); First auxiliary contact (3) and the second auxiliary contact (32) are intervally arranged; First electrode, the first auxiliary contact (3) and the first main contact (4) are electrically connected; Second main contact (42), the second auxiliary contact (32) and the second electrode are electrically connected; Be vacuum in insulation crust (5);
When described first main contact (4) and the second main contact (42) separating brake, there is relative motion; At separately final position, the first main contact (4) and the second main contact (42) are in the position of the radial water plane lower than the first auxiliary contact (3) and the second auxiliary contact (32) respectively;
Described first electrode is moving electrode (1), and one end that moving electrode (1) is positioned at insulation crust (5) outside connects mechanical actuation device; Described second electrode is fixed electrode (7).
2. a kind of isolation/ground connection vacuum extinction pipe according to claim 1, it is characterized in that, moving electrode (1) is fixedly connected with the first flexible member being positioned at insulation crust (5).
3. a kind of isolation/ground connection vacuum extinction pipe according to claim 1, it is characterized in that, described first electrode is moving electrode (1), and one end that moving electrode (1) is positioned at insulation crust (5) outside connects the first mechanical actuation device; Described second electrode is the second moving electrode (12); One end that second moving electrode (12) is positioned at insulation crust (5) outside connects the second mechanical actuation device, and the top, one end that the second moving electrode (12) is positioned at insulation crust (5) inner side is provided with the second main contact (42).
4. a kind of isolation/ground connection vacuum extinction pipe according to claim 3, it is characterized in that, moving electrode (1) is fixedly connected with the first flexible member being positioned at insulation crust (5); Second moving electrode (12) is fixedly connected with the second flexible member being positioned at insulation crust (5).
5. a kind of isolation/ground connection vacuum extinction pipe according to claim 1, it is characterized in that, the first main contact (4) and the second main contact (42) are all in tabular.
6. a kind of isolation/ground connection vacuum extinction pipe according to claim 1, it is characterized in that, the periphery of the first main contact (4) and the second main contact (42) flat joint is provided with main shield (6), and main shield (6) is fixed on the inwall of insulation crust (5).
7. a kind of isolation/ground connection vacuum extinction pipe according to claim 5, is characterized in that, insulation crust (5) and main shield (6) adopt transparent or transparent materials to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310232162.3A CN103311046B (en) | 2013-06-09 | 2013-06-09 | Isolation/grounding vacuum arc extinguishing tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310232162.3A CN103311046B (en) | 2013-06-09 | 2013-06-09 | Isolation/grounding vacuum arc extinguishing tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103311046A CN103311046A (en) | 2013-09-18 |
| CN103311046B true CN103311046B (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310232162.3A Active CN103311046B (en) | 2013-06-09 | 2013-06-09 | Isolation/grounding vacuum arc extinguishing tube |
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| Country | Link |
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| CN (1) | CN103311046B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB787846A (en) * | 1954-08-09 | 1957-12-18 | Era Patents Ltd | Improvements relating to high-vacuum electric circuit-breakers |
| DE3811833A1 (en) * | 1988-04-07 | 1989-10-19 | Siemens Ag | Vacuum switching tube |
| JPH06101282B2 (en) * | 1988-11-24 | 1994-12-12 | 三菱電機株式会社 | Vacuum switch tube |
| JPH02216723A (en) * | 1989-02-17 | 1990-08-29 | Mitsubishi Electric Corp | Vacuum switch tube |
| CN2071383U (en) * | 1990-06-08 | 1991-02-13 | 无锡市无线电元件三厂 | Low voltage double motion electrode vacuum arc-suppression room |
| CN100530481C (en) * | 2007-06-05 | 2009-08-19 | 西安交通大学 | A 252kV single-break vacuum interrupter |
| CN201060786Y (en) * | 2007-07-06 | 2008-05-14 | 北京京东方真空电器有限责任公司 | Vacuum switch and vacuum switch tube |
| CN201877351U (en) * | 2010-12-15 | 2011-06-22 | 北京京东方真空电器有限责任公司 | Vacuum switching tube |
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2013
- 2013-06-09 CN CN201310232162.3A patent/CN103311046B/en active Active
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| CN103311046A (en) | 2013-09-18 |
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Effective date of registration: 20210812 Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Patentee before: CHINA XD ELECTRIC Co.,Ltd. Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |
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Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: Xi'an High Voltage Electrical Apparatus Research Institute Co.,Ltd. Address before: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |