CN105655194A - Double-acting vacuum arc-extinguishing chamber with permanent magnetic mechanism - Google Patents
Double-acting vacuum arc-extinguishing chamber with permanent magnetic mechanism Download PDFInfo
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- CN105655194A CN105655194A CN201410714251.6A CN201410714251A CN105655194A CN 105655194 A CN105655194 A CN 105655194A CN 201410714251 A CN201410714251 A CN 201410714251A CN 105655194 A CN105655194 A CN 105655194A
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- permanent magnet
- arc
- extinguishing chamber
- magnet mechanism
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Abstract
The invention relates to a double-acting vacuum arc-extinguishing chamber with a permanent magnetic mechanism. The double-acting vacuum arc-extinguishing chamber is formed by a contact system and a permanent magnetic mechanism and is composed of a static conducting rod (1), a shell blocking plate (2), a magnetic yoke (3), a working air gap (4), insulating resin (5), an opening coil (6), a flexible conductor (7), a permanent magnet (8), an insulating filler (9), a closing coil (10), a shield cover (11), a moving guide rod (12), a main shielding cover (13), a first moving contact (14), a second moving contact (15), an insulation shell (16), and high-performance permeability magnetic material (17). The permanent magnetic mechanism is arranged inside the arc-extinguishing chamber. According the invention, the space inside the arc-extinguishing chamber can be utilized effectively. The size is small; a few pars are used; and the fault rate of the circuit breaker is reduced. Compared with the previous arc-extinguishing chamber, the provided arc-extinguishing chamber has the better sealing effect, so that the air leak rate is reduced and the service life of the arc-extinguishing chamber is prolonged. Moreover, rapid movement of the contacts is realized; the opening and closing time is reduced; and arc extinguishment can be realized conveniently.
Description
Technical field
The present invention relates to a kind of vacuum interrupter, particularly relate to and a kind of permanent magnet mechanism is placed in arc suppressing transformer inner and realize two novel evacuated arc suppressing transformer of moving, belong to technical field of electrical equipment.
Background technology
Along with the construction and development of intelligent grid, the control and protection equipment in power system being had higher requirement, intelligentized switching device becomes the trend of development. Isolating switch is the normal current that can normally close, carry, cut-off operation loop, also can close, carries and cut-off the switching device of the overcurrent (comprising short-circuit current) of fault current at the appointed time. Which ensure reliability and security that electrical network and electrical equipment are run, it is one of the most important proterctive equipment of electrical network. Vacuum switch is a kind of electric power switch having development prospect, has excellent insulation and arc extinction performance due to it, is widely used in Medium voltage switch or circuit breaker electrical equipment.
Vacuum interrupter has reliability height, volume is little, weight is light, life-span length, arc extinction performance are good, be applicable to frequent operation, maintenance workload is little, a series of advantages such as free from environmental pollution, use safety, compared with the isolating switch of other type, in middle pressure field, vacuum interrupter has stronger vitality. Isolating switch forms primarily of arc suppressing transformer, operating mechanism etc. Operating mechanism occupies critical role in isolating switch, and it not only to be ensured the reliable in action that isolating switch is long-term, and to be met the performance requriements of arc suppressing transformer and control unit. The structure that permanent magnet mechanism self has is simple, mechanical reliability height, be easy to realize control, permanent magnetism keep the features such as energy consumption is low, make it to become a kind of important actuating mechanism of isolating switch, contribute to the intelligent development of isolating switch.
Traditional vacuum interrupter is all move through mechanical linkage, touch spring by operating mechanism to be connected with moving conductive rod and to drive contact motion to realize cut-offfing of point isolating switch. It is relatively many that this kind of vacuum interrupter has union piece, and the problems such as arc suppressing transformer inner structure is compact not, and overall volume is relatively large, may cause isolating switch generation principal fault in interrupting process, make failure of interruption.
Therefore a kind of compact construction of invention, smaller size smaller, better tightness, failure rate is lower, divide-shut brake speed is fast, and the short coenosarc vacuum interrupter of split time has a wide range of applications, and is especially having volume and rate request special occasions to have the market requirement more widely.
Summary of the invention
The object of the present invention is just to solve prior art Problems existing, for the defect that existing vacuum interrupter exists, it is provided that the two dynamic vacuum interrupter of a kind of rational in infrastructure, compact, band permanent magnet mechanism that good airproof performance, breaking speed are fast.
For solving the problems of the technologies described above, the present invention realizes like this.
The two dynamic vacuum interrupter of this kind of band permanent magnet mechanism, it is made up of contact system and permanent magnet mechanism system, including static conductive rod 1, shell baffle plate 2, yoke 3, working gas gap 4, insulating resin 5, switching winding 6, flexible conductor 7, permanent magnet 8, insulation filler 9, combined floodgate coil 10, shielding case 11, moving conductive rod 12, the dynamic contact 14 of main shielding case 13, first, the 2nd dynamic contact 15, insulated shell 16, high-performance magnetically permeable material 17, described permanent magnet mechanism is arranged on the inside of arc suppressing transformer.
The two dynamic vacuum arc-extinguishing chamber contact system of this kind of band permanent magnet mechanism comprises: the first dynamic contact 14, the 2nd dynamic contact 15, moving conductive rod 12, flexible conductor 7, wherein: in conduction loop, electric current is flowed into by flexible conductor 7 and flows out through the dynamic contact 14 of moving conductive rod 12, first, the 2nd dynamic contact 15, flexible conductor 7.
The two dynamic vacuum interrupter permanent magnet mechanism system of this kind of band permanent magnet mechanism mainly comprises: yoke 3, switching winding 6, permanent magnet 8, combined floodgate coil 10, working gas gap 4, high-performance magnetically permeable material 17. Wherein switching winding 6, combined floodgate coil 10, permanent magnet 8 acting in conjunction complete divide-shut brake.
Along with voltage range increases (reduction), it is possible to suitably improving (reduction) coil turn, permanent magnet thickness, iron core diameter, successfully cut-offs necessary requirement to meet.
Compared with prior art, the invention has the beneficial effects as follows.
The present invention is the two dynamic vacuum interrupter of a kind of band permanent magnet mechanism. Its major advantage is, it is possible to effectively utilize the space of arc suppressing transformer inside, compares the volume having reduction with traditional vacuum interrupter, and less component can reduce circuit breaker failure rate. Comparing with conventional vacuum interrupter, permanent magnet mechanism is completely enclosed within arc suppressing transformer to seal effect better, less leak rate, it is to increase go out nurse's life-span. Owing to two dynamic contact is conducive to the rapid movement of contact, reduce branch wire time, it is convenient to the extinguishing of electric arc.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Fig. 1 is the vacuum interrupter closing position two dimension figure of the present invention.
Fig. 2 is the vacuum interrupter open position two dimension figure of the present invention.
In figure: 1 static conductive rod, 2 shell baffle plates, 3 yokes, 4 working gas gaps, 5 insulating resins, 6 switching windings, 7 flexible conductors, 8 permanent magnets, 9 insulation filler, 10 combined floodgate coils, 11 shielding cases, 12 moving conductive rods, 13 main shielding cases, 14,15 move contact, 16 insulated shells, 17 high-performance magnetically permeable materials.
Embodiment
As shown in Fig. 1��Fig. 2, the two dynamic vacuum interrupter of this kind of band permanent magnet mechanism, it is made up of contact system and permanent magnet mechanism system, include static conductive rod 1, shell baffle plate 2, yoke 3, working gas gap 4, insulating resin 5, switching winding 6, flexible conductor 7, permanent magnet 8, insulation filler 9, combined floodgate coil 10, shielding case 11, moving conductive rod 12, main shielding case 13, first dynamic contact 14, 2nd dynamic contact 15, insulated shell 16, high-performance magnetically permeable material 17, described permanent magnet mechanism is arranged on the inside of arc suppressing transformer, described contact system comprises: the first dynamic contact 14, 2nd dynamic contact 15, moving conductive rod 12, flexible conductor 7, wherein moving conductive rod 12 is respectively at moving contact 14 with first, 2nd dynamic contact 15 electrically connects, moving conductive rod 12 end is connected with flexible conductor 7, the flexible conductor the other end with stretch out that arc suppressing transformer are outside and static conductive rod that is that be fixed on end cap is connected. electric current is flowed into by end flexible conductor 7, flows out through the dynamic contact 15 of the dynamic contact 14 of moving conductive rod 12 first the 2nd, another side moving conductive rod 12, flexible conductor 7. yoke 3, switching winding 6, permanent magnet 8, combined floodgate coil 10, working gas gap 4, high-performance magnetically permeable material 17 form bistable-state permanent magnet mechanism together. wherein being fixed on moving conductive rod by high magnetically permeable material 17 with insulation filler 9, divide-shut brake coil 6,10 is placed in outside high magnetically permeable material 17 through insulating resin 5, and permanent magnet 8 is between divide-shut brake coil 6,10. by closing a floodgate, coil 10 completes making process, leads to electric current and form closed magnetic circuit between high magnetically permeable material 17, yoke 3, working gas gap 4 in combined floodgate coil. moving conductive rod 12 is driven to move by high magnetically permeable material 17, and the moving conductive rod 12 end flexible conductor 7 that stretches makes the first dynamic contact 14, the 2nd dynamic contact 15 move and complete making process fast simultaneously, after making process completes, coil current is stopped power supply, and forms closed magnetic circuit by permanent magnet 8 through yoke 3 and keeps making process.
Divide lock process electric current path to flow into by end flexible conductor 7 by electric current, flow out through the dynamic contact 14 of moving conductive rod 12, first, electric arc, the 2nd dynamic contact 15, moving conductive rod 12, flexible conductor 7. Lock process is divided to lead to into electric current in switching winding 6, closed magnetic circuit is formed between high magnetically permeable material 17, yoke 3, working gas gap 4, moving conductive rod 12 is driven to move by high-performance magnetically permeable material 17, compress flexible conductor 7 simultaneously, the first dynamic contact 14, the 2nd dynamic contact 15 is made to move simultaneously and complete quick acting switching-off simultaneously, after dividing lock to complete, the closed magnetic circuit formed by permanent magnet 8 and yoke 3 keeps gate-dividing state.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the two dynamic vacuum interrupter of a band permanent magnet mechanism, it is characterized in that being made up of contact system and permanent magnet mechanism system, include static conductive rod (1), shell baffle plate (2), yoke (3), working gas gap (4), insulating resin (5), switching winding (6), flexible conductor (7), permanent magnet (8), insulation filler (9), combined floodgate coil (10), shielding case (11), moving conductive rod (12), main shielding case (13), first dynamic contact (14), 2nd dynamic contact (15), insulated shell (16), high-performance magnetically permeable material (17), described permanent magnet mechanism is arranged on arc suppressing transformer inside and realizes inside and cut-off.
2. the two dynamic vacuum interrupter of band permanent magnet mechanism according to claim 1, it is characterized in that described permanent magnet mechanism comprises yoke (3), switching winding (6), permanent magnet (8), combined floodgate coil (10), working gas gap (4), high-performance magnetically permeable material (17), wherein complete divide-shut brake by switching winding (6), combined floodgate coil (10), permanent magnet (8) acting in conjunction.
3. the two dynamic vacuum interrupter of band permanent magnet mechanism according to claim 1, it is characterized in that described contact part is divided and comprise the first dynamic contact (14), the 2nd dynamic contact (15), moving conductive rod (12), flexible conductor (7), wherein: in conduction loop, electric current is flowed into by flexible conductor (7) and flows out through moving conductive rod (12), the first dynamic contact (14), the 2nd dynamic contact (15), flexible conductor 7.
4. the vacuum interrupter with permanent magnet mechanism according to claim 1, it is characterized in that described moving conductive rod (12) end is connected with flexible conductor (7), arc suppressing transformer are in complete sealed state, good sealing effect, it is possible to extend the arc suppressing transformer life-span.
5. the two dynamic vacuum interrupter with permanent magnet mechanism according to claim 1, it is characterised in that: the first dynamic contact (14), the 2nd dynamic contact (15) move simultaneously, increase divide-shut brake speed, reduce a point disconnected time, are conducive to blow-out.
6. the vacuum interrupter with permanent magnet mechanism according to claim 1, it is characterised in that: increase along with voltage range or reduce and suitably improve or reduce coil turn, permanent magnet thickness, high-performance magnetically permeable material diameter, successfully cut-off necessary requirement to meet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714251.6A CN105655194A (en) | 2014-12-02 | 2014-12-02 | Double-acting vacuum arc-extinguishing chamber with permanent magnetic mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714251.6A CN105655194A (en) | 2014-12-02 | 2014-12-02 | Double-acting vacuum arc-extinguishing chamber with permanent magnetic mechanism |
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| CN105655194A true CN105655194A (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410714251.6A Pending CN105655194A (en) | 2014-12-02 | 2014-12-02 | Double-acting vacuum arc-extinguishing chamber with permanent magnetic mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712278A (en) * | 2017-01-25 | 2017-05-24 | 广东光达电气有限公司 | Dual-power supply fast change-over switch |
| 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 |
| CN109065404A (en) * | 2018-07-18 | 2018-12-21 | 齐志学 | A kind of electro-magnetic forming equipment synchronous switch |
| CN111554541A (en) * | 2020-06-29 | 2020-08-18 | 广东电网有限责任公司东莞供电局 | Vacuum circuit breaker |
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| CN102280304A (en) * | 2011-06-17 | 2011-12-14 | 孟越峰 | Moving contact assembly and intelligent electromagnetic isolation driving switch applying same |
| CN103165355A (en) * | 2011-12-08 | 2013-06-19 | 沈阳工业大学 | Rapid quadrate monostable permanent magnet operating mechanism capable of separating brake manually |
| JP2014007081A (en) * | 2012-06-25 | 2014-01-16 | Toshiba Corp | Vacuum valve |
| CN204289245U (en) * | 2014-12-02 | 2015-04-22 | 沈阳工业大学 | A kind of two dynamic vacuum interrupter with permanent magnet mechanism |
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2014
- 2014-12-02 CN CN201410714251.6A patent/CN105655194A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280304A (en) * | 2011-06-17 | 2011-12-14 | 孟越峰 | Moving contact assembly and intelligent electromagnetic isolation driving switch applying same |
| CN103165355A (en) * | 2011-12-08 | 2013-06-19 | 沈阳工业大学 | Rapid quadrate monostable permanent magnet operating mechanism capable of separating brake manually |
| JP2014007081A (en) * | 2012-06-25 | 2014-01-16 | Toshiba Corp | Vacuum valve |
| CN204289245U (en) * | 2014-12-02 | 2015-04-22 | 沈阳工业大学 | A kind of two dynamic vacuum interrupter with permanent magnet mechanism |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712278A (en) * | 2017-01-25 | 2017-05-24 | 广东光达电气有限公司 | Dual-power supply fast change-over switch |
| CN106712278B (en) * | 2017-01-25 | 2024-01-30 | 广东光达电气有限公司 | Dual-power supply fast switching switch |
| 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 |
| CN109065404A (en) * | 2018-07-18 | 2018-12-21 | 齐志学 | A kind of electro-magnetic forming equipment synchronous switch |
| CN111554541A (en) * | 2020-06-29 | 2020-08-18 | 广东电网有限责任公司东莞供电局 | Vacuum circuit breaker |
| CN111554541B (en) * | 2020-06-29 | 2022-05-27 | 广东电网有限责任公司东莞供电局 | Vacuum circuit breaker |
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Application publication date: 20160608 |