CN105719895A - Vacuum arc-extinguishing chamber of novel double-acting mechanism - Google Patents
Vacuum arc-extinguishing chamber of novel double-acting mechanism Download PDFInfo
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- CN105719895A CN105719895A CN201410715068.8A CN201410715068A CN105719895A CN 105719895 A CN105719895 A CN 105719895A CN 201410715068 A CN201410715068 A CN 201410715068A CN 105719895 A CN105719895 A CN 105719895A
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- arc
- operating mechanism
- chutes
- extinguishing chamber
- vacuum
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Abstract
The invention discloses a vacuum arc-extinguishing chamber of a novel double-acting mechanism. The vacuum arc-extinguishing chamber mainly comprises an electromagnetic operating mechanism and an arc-extinguishing chamber, wherein the electromagnetic operating mechanism is composed of an armature, a static iron core, a coil, an opening spring and the like; and the arc-extinguishing chamber is composed of a contact, a conductive rod and a shield. The vacuum arc-extinguishing chamber is characterized in that the electromagnetic operating mechanism is placed in the arc-extinguishing chamber, and coexists in a vacuum housing together with the arc-extinguishing chamber, thereby solving the problem of dynamic seal and reducing the overall size of a vacuum circuit breaker. The service life of the arc-extinguishing chamber is greatly prolonged by saving a corrugated pipe; in order to improve the breaking speed, a symmetrical double-acting structure is adopted, the two contacts simultaneously move in the opposite directions, the structure is simplified, the moving part is only composed of the contact, the conductive rod and the armature, and the equivalent mass of the acting part is small, so that the breaking speed and the breaking capability are greatly improved, and the opening and closing arcs are reduced.
Description
Technical field
The present invention relates to a kind of vacuum interrupter, particularly relate to the vacuum extinction cell structure of a kind of novel double-movable mechanism, belong to high voltage electrical apparatus technical field.
Background technology
Vacuum circuit breaker is widely used in circuit on power system protection and switching, and remains leading position in middle pressure field.Its Main Function be contact point, conjunction action to be to switch on and off circuit, requiring breaking speed, The faster the better, the time is more short more good, because easily producing electric arc during vacuum circuit breaker disjunction, breaking speed is more fast, the time that electric arc produces is more short, and the impact damage of equipment is more little.And separating brake, combined floodgate are operated by mechanism and realize, the therefore performance of operating mechanism and quality, service behaviour and reliability to vacuum circuit breaker play particularly important effect.
The fault statistics of China's operation power and transformer station shows, the most distinct issues of vacuum circuit breaker are exactly machinery and Insulation Problems, especially mechanical aspects fault, complicated mainly due to operating mechanism mechanical connecting structure, number of components is many, requiring that machining accuracy, manufacturing process are complicated, cost is high, and the reliability of product not easily ensures.
, operating mechanism complicated for existing vacuum circuit breaker constructions connects complexity and causes the shortcoming that fault rate is high and Contact Breaking/Making Operations lock speed is not high, therefore, it is necessary to provide the vacuum circuit breaker of a kind of simple and reliable ground quickly disjunction circuit.
Summary of the invention
The purpose of the present invention is that solution prior art Problems existing, for existing vacuum circuit breaker operating mechanism structure complexity, cut-off the defect that speed is not high, it is provided that the vacuum interrupter of the novel double-movable mechanism that a kind of volume is little, machine driving is simple, initial breaking speed is big.
For solving above-mentioned technical problem, the present invention is realized in.
The vacuum interrupter of novel double-movable mechanism, include electromagnetic operating mechanism and arc-chutes, it is characterized in: electromagnetic operating mechanism is made up of armature 4, static iron core 3, coil, sluice separating spring etc., arc-chutes are made up of contact, conducting rod 5, radome, the electric-conductor 15 etc. that is flexible coupling, electromagnetic operating mechanism is positioned in arc-chutes, it is collectively reside in vacuum casting with arc-chutes, the problem solving movable sealing, reduce the volume that vacuum circuit breaker is overall；New structure eliminates corrugated tube, substantially increases the life-span of arc-chutes；In order to improve breaking speed, contact in described arc-chutes adopts symmetrical double; two dynamic structure, two contacts move simultaneously round about, simplify structure, motion parts only has contact, conducting rod and armature to constitute, action part equivalent mass is only small, drastically increases breaking speed and breaking capacity, decreases point, combined floodgate electric arc.
Wherein electromagnetic operating mechanism is arranged on insulating support 2, and armature 4 is fixed with conducting rod 5, and by being flexible coupling, electric-conductor 15 is connected with leading-out terminal conductive pole 7, and static iron core 3 is fixed on insulating support 2, is linked together by insulated support 8 and flange 1.
The described operating mechanism being installed in arc-chutes is connected with leading-out terminal by the electric-conductor 15 that is flexible coupling, and the problem being absent from movable sealing improves the sealing of arc-chutes, reduces the overall structure of vacuum circuit breaker.
The armature 4 of electromagnetic operating mechanism is fixed on conducting rod 5, it is achieved driving force transmits, and eliminates the mechanical transmission part of complexity.
The vacuum interrupter of described novel double-movable mechanism, owing to not having mechanical transmission structure, is connected with conducting rod 5 only by armature 4, and therefore motion parts quality is only small, and initial breaking speed is greatly improved.
The vacuum interrupter of described novel double-movable mechanism eliminates corrugated tube, substantially increases the life-span that arc-chutes are overall.
Electromagnetic operating mechanism adopts the magnetic material of high magnetic property, it is necessary to exciting current is little, effectively reduces the volume of ferromagnetic material and coil.
Described vacuum interrupter adopts laterally zygomorphic structural design, attaches operating mechanism respectively and realizes double; two dynamic, drastically increases breaking speed and breaking capacity, decreases point, combined floodgate electric arc.
The vacuum interrupter of described novel double-movable mechanism adopts coaxial electrical magnetic mechanism to drive, it is easy to controlling, time centrality is relatively good.
Armature flows through current induced magnetic field, enhances the magnetic field between contact, be conducive to arc extinguishing.
Compared with prior art, the invention has the beneficial effects as follows.
Electromagnetic operating mechanism is positioned in arc-chutes by the present invention, is collectively reside in vacuum casting with arc-chutes, and the problem solving movable sealing substantially increases the sealing of arc-chutes, reduces the volume that vacuum circuit breaker is overall；New structure eliminates corrugated tube, substantially increases the life-span of arc-chutes；In order to improve breaking speed, adopt symmetrical double; two dynamic structure on the one hand, two contacts move simultaneously round about, on the other hand, simplifying structure, motion parts only has contact, conducting rod and armature to constitute, and action part equivalent mass is only small, drastically increase breaking speed and breaking capacity, decrease point, combined floodgate electric arc.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Arc-chutes overall structure schematic diagram when Fig. 1 is separating brake of the present invention.
Fig. 2 is present invention arc-chutes overall structure schematic diagram when closing a floodgate.
Labelling in figure: 1, flange；2, insulating support；3, static iron core；4, armature；5, conducting rod；6, main shield cover；7, leading-out terminal conductive pole；8, insulated support；9, reaction spring；10, switching winding；11, insulating cylinder；12, bellows shield cover；13, contact；14, shell；15, be flexible coupling electric-conductor.
Detailed description of the invention
As shown in Fig. 1～Fig. 2, novel two-way disjunction arc-chutes and vacuum circuit breaker, include electromagnetic operating mechanism and arc-chutes, wherein electromagnetic operating mechanism is by armature 4, static iron core 3, coil, sluice separating springs etc. form, arc-chutes are by contact, conducting rod 5, radome, electric-conductor 15 grade that is flexible coupling forms, electromagnetic operating mechanism is positioned in arc-chutes, it is collectively reside in vacuum casting with arc-chutes, the problem solving movable sealing, reduce the volume that vacuum circuit breaker is overall, new structure eliminates corrugated tube and substantially increases the life-span of arc-chutes, in order to improve breaking speed, contact in described arc-chutes adopts symmetrical double, two dynamic structure, two contacts move simultaneously round about, simplify structure, motion parts only has contact, conducting rod and armature are constituted, action part equivalent mass is only small, drastically increase breaking speed and breaking capacity, decrease point, combined floodgate electric arc；
Electromagnetic operating mechanism is arranged on insulating support 2, armature 4 is fixed with conducting rod 5, by being flexible coupling, electric-conductor 15 is connected with leading-out terminal conductive pole 7, static iron core 3 is fixed on insulating support 2, is linked together by insulated support 8 and flange 1, owing to adopting double; two dynamic structure, therefore, arc-chutes up-down structure is full symmetric, is only illustrated with upper half componental movement, and the latter half is in like manner.
With reference to Fig. 1, during breaker open operation, switching winding 10 obtains electric, armature 4, static iron core 3, air gap constitute magnetic circuit, producing suction and order about armature 4 band moving conductive rod 5, contact 13 to the motion of separating brake direction, arrive open position, two moving contacts separate, realizing circuit disjunction, compression sluice separating spring 9 stores energy simultaneously.
With reference to Fig. 2, during breaker closing, switching winding 10 dead electricity, sluice separating spring 9 provide counter-force to drive conducting rod 5 and contact 13 to move to closing position.Conducting rod 5 electrically couples with contact 13, and by being flexible coupling, electric-conductor 15 is connected with leading-out terminal conductive pole 7, and the latter half in like manner, constitutes galvanic circle by two contacts.
Claims (7)
1. the vacuum interrupter of novel double-movable mechanism, include electromagnetic operating mechanism and arc-chutes, it is characterized in: electromagnetic operating mechanism is by armature (4), static iron core (3), coil, sluice separating springs etc. form, arc-chutes are by contact, conducting rod (5), radome, be flexible coupling the compositions such as electric-conductor (15), electromagnetic operating mechanism is positioned in arc-chutes, it is collectively reside in vacuum casting with arc-chutes, contact in described arc-chutes adopts symmetrical double, two dynamic structure, two contacts move simultaneously round about, wherein electromagnetic operating mechanism is arranged on insulating support (2), armature (4) is fixed with conducting rod (5), it is connected with leading-out terminal conductive pole (7) by the electric-conductor that is flexible coupling (15), static iron core (3) is fixed on insulating support (2), linked together by insulated support (8) and flange (1).
2. the vacuum interrupter of novel double-movable mechanism according to claim 1, it is characterized in that: described in be installed in arc-chutes operating mechanism be connected with leading-out terminal by the electric-conductor (15) that is flexible coupling, the problem being absent from movable sealing, improve the sealing of arc-chutes, reduce the overall structure of vacuum circuit breaker.
3. the vacuum interrupter of novel double-movable mechanism according to claim 1, it is characterised in that: the armature (4) of electromagnetic operating mechanism is fixed on conducting rod (5), it is achieved driving force transmits, and eliminates the mechanical transmission part of complexity.
4. the vacuum interrupter of novel double-movable mechanism according to claim 1, it is characterised in that: electromagnetic operating mechanism adopts the magnetic material of high magnetic property, it is necessary to exciting current is little, effectively reduces the volume of ferromagnetic material and coil.
5. the vacuum interrupter of novel double-movable mechanism according to claim 1, it is characterized in that: described vacuum interrupter is laterally zygomorphic structural design, attach operating mechanism respectively and realize double; two dynamic, drastically increase breaking speed and breaking capacity, decrease point, combined floodgate electric arc.
6. the vacuum interrupter of novel double-movable mechanism according to claim 1, it is characterised in that adopt coaxial electrical magnetic mechanism to drive, it is easy to controlling, time centrality is relatively good.
7. the vacuum interrupter of novel double-movable mechanism according to claim 1, it is characterised in that flow through current induced magnetic field in armature, enhance the magnetic field between contact, be conducive to arc extinguishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715068.8A CN105719895A (en) | 2014-12-02 | 2014-12-02 | Vacuum arc-extinguishing chamber of novel double-acting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715068.8A CN105719895A (en) | 2014-12-02 | 2014-12-02 | Vacuum arc-extinguishing chamber of novel double-acting mechanism |
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| Publication Number | Publication Date |
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| CN105719895A true CN105719895A (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410715068.8A Pending CN105719895A (en) | 2014-12-02 | 2014-12-02 | Vacuum arc-extinguishing chamber of novel double-acting mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123567A (en) * | 2017-06-16 | 2017-09-01 | 沈阳工业大学 | A kind of bilateral of vacuum circuit breaker cut-offs technology |
| CN110828227A (en) * | 2019-10-12 | 2020-02-21 | 保定市冀中电力设备有限责任公司 | Full-working-condition intelligent solid-sealed high-voltage alternating-current vacuum circuit breaker |
| CN111477519A (en) * | 2020-04-27 | 2020-07-31 | 李凤玲 | Vacuum circuit breaker |
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| US4862313A (en) * | 1987-12-11 | 1989-08-29 | Hitachi, Ltd. | Driving apparatus for DC circuit breakers |
| CN2779572Y (en) * | 2004-09-14 | 2006-05-10 | 北京理工大学 | Magnetic replacement type electromagnetism executor |
| CN102280304A (en) * | 2011-06-17 | 2011-12-14 | 孟越峰 | Moving contact assembly and intelligent electromagnetic isolation driving switch applying same |
| CN103779137A (en) * | 2014-01-16 | 2014-05-07 | 西安交通大学 | Integrated permanent magnet mechanism vacuum switch |
| CN204289249U (en) * | 2014-12-02 | 2015-04-22 | 沈阳工业大学 | The vacuum interrupter of novel double-movable mechanism |
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2014
- 2014-12-02 CN CN201410715068.8A patent/CN105719895A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4862313A (en) * | 1987-12-11 | 1989-08-29 | Hitachi, Ltd. | Driving apparatus for DC circuit breakers |
| CN2779572Y (en) * | 2004-09-14 | 2006-05-10 | 北京理工大学 | Magnetic replacement type electromagnetism executor |
| CN102280304A (en) * | 2011-06-17 | 2011-12-14 | 孟越峰 | Moving contact assembly and intelligent electromagnetic isolation driving switch applying same |
| CN103779137A (en) * | 2014-01-16 | 2014-05-07 | 西安交通大学 | Integrated permanent magnet mechanism vacuum switch |
| CN204289249U (en) * | 2014-12-02 | 2015-04-22 | 沈阳工业大学 | The vacuum interrupter of novel double-movable mechanism |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123567A (en) * | 2017-06-16 | 2017-09-01 | 沈阳工业大学 | A kind of bilateral of vacuum circuit breaker cut-offs technology |
| CN107123567B (en) * | 2017-06-16 | 2019-02-19 | 沈阳工业大学 | A kind of bilateral of vacuum circuit breaker cut-offs technology |
| CN110828227A (en) * | 2019-10-12 | 2020-02-21 | 保定市冀中电力设备有限责任公司 | Full-working-condition intelligent solid-sealed high-voltage alternating-current vacuum circuit breaker |
| CN110828227B (en) * | 2019-10-12 | 2022-08-19 | 河北承捷电力设备制造有限公司 | All-condition intelligent solid-sealed high-voltage AC vacuum circuit breaker |
| CN111477519A (en) * | 2020-04-27 | 2020-07-31 | 李凤玲 | Vacuum circuit breaker |
| CN111477519B (en) * | 2020-04-27 | 2022-03-04 | 上海振能信息科技有限公司 | Vacuum circuit breaker |
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Application publication date: 20160629 |
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