CN105513884A - Manufacturing method of vacuum arc extinguishing chamber especially for direct-current switch electric appliance - Google Patents
Manufacturing method of vacuum arc extinguishing chamber especially for direct-current switch electric appliance Download PDFInfo
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- CN105513884A CN105513884A CN201410540675.5A CN201410540675A CN105513884A CN 105513884 A CN105513884 A CN 105513884A CN 201410540675 A CN201410540675 A CN 201410540675A CN 105513884 A CN105513884 A CN 105513884A
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- arc extinguishing
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- extinguishing chamber
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Abstract
The invention relates to a manufacturing method of a vacuum arc extinguishing chamber especially for a direct-current switch electric appliance. By using a cylindrical vacuum arc extinguishing chamber, an insulation cylinder with annular ripples is used as main insulation, inner metal bellows are used as dynamic seals. A movable contact moves towards a static contact so that they are enclosed, and moves in the opposite direction so that they are separated. When the movable contact of the vacuum arc extinguishing chamber is electrified to be separated or enclosed, arcs can be generated. The arcs are dispersed and absorbed by an annular permanent magnet in the vacuum arc extinguishing chamber, then disperse quickly towards a metal cylinder, quickly leave the movable and static contacts, are cooled by the metal cylinder and then are quickly extinguished, thereby achieving the arc extinguishing objective. Because arcs can be generated when the movable contact is electrified to be separated or enclosed, the whole extinguishing process is finished in the vacuum arc extinguishing chamber, and the arcs are separated from the outside, so a difficulty of the use of an arc extinguishing chamber in combustible gas and dust environment is solved. In addition, the arc extinguishing performance of a switch with 1mm separation distance in the arc extinguishing chamber can reach over 1kV which is more than 10 times of the arc extinguishing performance of air, so the size of a vacuum switch can be made to be 1/4-1/6 of the size of an air switch in the same voltage classes and the same capacity, so a problem of enormous size of a traditional air arc extinguishing switch is solved.
Description
Technical field
The invention belongs to power transmission and distribution industry, device for switching manufactures field, and what be specifically related to is a kind of manufacture method of style direct current switch electric Special vacuum arc control device.
Background technology
At present, the style direct current switch electric that the Ge Jia enterprise that power transmission and distribution industry device for switching manufactures field produces, as the device for switching such as DC circuit breaker, D.C. contactor all adopts air blowout mode, arcing time is long, arc extinguishing reliability is low, the bulky heaviness of arc control device, and be not suitable for applying in the environment having fuel gas, dust, there is the hidden danger of combustion explosion.
Summary of the invention
The present invention adopts cylindric vacuum interrupter, utilize the insulating cylinder of band annular ripple as main insulation, interior metal bellows is as movable sealing, fixed contact is closed to fixed contact motion, move in the other direction and separate, charged point of the moving contact of vacuum interrupter, electric arc can be produced when closing, electric arc attracts diffusion in vacuum extinction chamber by the magnetic field force of annular permanent magnets, electric arc is rapidly to metal cylinder diffusion, speed away dynamic/static contact, and be subject to the stop cooling of metal cylinder and extinguish rapidly, reach the object of arc extinguishing.Because the process of the whole extinguishing of electric arc that can produce when charged point of moving contact, conjunction all completes in the vacuum chamber of vacuum interrupter, be isolated from the outside, solve and having the difficult problem used in fuel gas and travel fatigue environment; In addition, because the arc extinction performance opening distance at vacuum interrupter breaker in middle 1mm just reaches more than 1kV, it is more than 10 times of air blowout performance, so identical electric pressure, identical capacity, the volume of vacuum switch can be accomplished 1/4 ~ 1/6 size of air switch to solve the problem of the bulky heaviness of conventional air arc-suppressing switch.
Invent concrete technical scheme as follows:
Accompanying drawing 1, vacuum interrupter front view;
Accompanying drawing 2, vacuum interrupter vertical view;
Accompanying drawing 3, the Y cutaway view of the vacuum interrupter of gate-dividing state;
Accompanying drawing 4, the Y cutaway view of the vacuum interrupter of "on" position;
Accompanying drawing illustrates: sequence 1 fixed contact pedestal, sequence 11 tapped blind hole, sequence 2 fixed contact conducting rod, sequence 3 seal-weld, sequence 4 cylindrical dielectric shell, sequence 5 vacuum chamber, sequence 6 is tightly connected weld seam, sequence 7 fixed contact, sequence 8 moving contact, sequence 9 annular permanent magnets, sequence 10 movable contact conducting bar, the cylindric magnetic conductive metal shell of sequence 11, sequence 12 metal ring bellows, sequence 13 is tightly connected weld seam, sequence 14 fairlead, sequence 15 movable contact conducting bar, sequence 151 tapped blind hole, sequence 16 seal-weld
The enforcement of the technical scheme that the present invention is concrete: Figure 3 shows that example with attached, sequence 4 is columned insulation crust, and one end and sequence 11 magnetic conduction metal barrel are linked together by sequence 6 seal-weld, forms sequence 5 vacuum chamber; Sequence 11 magnetic conduction metal barrel overcoat sequence 9 annular permanent magnets; In the other end and the sequence 1 fixed contact pedestal seal welding of sequence 4 cylindrical dielectric shell; Sequence 1 fixed contact pedestal welds orderly 2 fixed contact conducting rods in sequence 5 vacuum chamber, the other end welding fixed contact of sequence 2 fixed contact conducting rod; The other end of sequence 11 magnetic conduction metal barrel and sequence 14 fairlead seal welding, the top of sequence 14 fairlead is welded with the sylphon seal of sequence 12 metal ring again, sequence 12 metal ring bellows again with sequence 15 moving conductive rod seal welding, burn-on sequence 8 moving contact moving contact in the top of sequence 15 moving conductive rod, again by vacuumizing and seal welding, form the vacuum interrupter of a complete cavity body structure.(sequence 1 fixed contact pedestal top is provided with sequence 11 tapped blind hole, and sequence 15 movable contact conducting bar is provided with sequence 151 tapped blind hole, and these tapped blind holes neither affect the sealing of whole vacuum interrupter, also facilitates and is connected with miscellaneous equipment or conductor.）
(wherein moving contact sequence 8 is that a pair shape is identical with fixed contact sequence 7, the cylindrical conductor that direction is contrary, the edge fillet of falling ring-type of contact-making surface, be conducive to electric arc under the attraction of the magnetic field force of sequence 9 annular permanent magnets, be rapidly to outer transfer diffusion, fly to magnetic conduction metal barrel, be subject to prevention and the cooling of metal cylinder, electric arc is able to rapid extinguishing, completes combined floodgate or the separating brake function of circuit breaker or contactor.
The present invention utilizes the strong arc extinguishing ability of vacuum, open apart from little, quenching time is short, arc control device volume is little, be adapted at the device for switching such as direct current vacuum circuit breaker or vacuum contactor is installed and used, meet and use under various environmental conditions, in the environment having fuel gas, dust, especially apply the advantage of more outstanding vacuum extinction, eliminate the hidden danger of combustion explosion.
Claims (3)
1. as shown in drawings, linked together by seal-weld by columned insulation crust one end and sequence magnetic conduction metal barrel, form sequence 5 vacuum chamber; Magnetic conduction metal barrel overcoat annular permanent magnets; In the other end and the fixed contact pedestal seal welding of cylindrical dielectric shell; Fixed contact pedestal is welded with fixed contact conducting rod in vacuum chamber, the other end welding fixed contact of fixed contact conducting rod; The other end of magnetic conduction metal barrel and sequence fairlead seal welding, the top of fairlead is welded with metal ring sylphon seal again, metal ring bellows again with moving conductive rod seal welding, burn-on moving contact moving contact in the top of moving conductive rod, again by vacuumizing and seal welding, form the vacuum interrupter of the cavity body structure of a complete seal.
2. moving contact and fixed contact are that a pair shape is identical, the cylindrical conductor that direction is contrary, the edge fillet of falling ring-type of contact-making surface, be conducive to electric arc and be rapidly to outer transfer under the attraction of the magnetic field force of permanent magnet magnetic ring, fly to magnetic conduction metal barrel, be subject to prevention and the cooling of metal cylinder, electric arc is able to rapid extinguishing, arc quenching method and structure.
3. on the device for switching such as direct current vacuum circuit breaker or contactor, adopt the principle of the claims 1 and claim 2, arc quenching method, structure, and in the application of AC vacuum circuit-breaker or contactor, all belong to the scope of the claims in the present invention protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410540675.5A CN105513884A (en) | 2014-10-14 | 2014-10-14 | Manufacturing method of vacuum arc extinguishing chamber especially for direct-current switch electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410540675.5A CN105513884A (en) | 2014-10-14 | 2014-10-14 | Manufacturing method of vacuum arc extinguishing chamber especially for direct-current switch electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105513884A true CN105513884A (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410540675.5A Pending CN105513884A (en) | 2014-10-14 | 2014-10-14 | Manufacturing method of vacuum arc extinguishing chamber especially for direct-current switch electric appliance |
Country Status (1)
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| CN (1) | CN105513884A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957750A (en) * | 2016-06-27 | 2016-09-21 | 北京奥普科星技术有限公司 | Automatic ageing detection and storage packaging production line of vacuum arc-extinguishing chamber |
| CN106783371A (en) * | 2017-01-06 | 2017-05-31 | 中科电力装备（安徽）智能化科技有限公司 | A kind of vacuum extinction cell structure of breaker |
| CN106953236A (en) * | 2017-03-21 | 2017-07-14 | 国家电网公司 | Potential transfer fast arc extinction device |
| CN107342186A (en) * | 2017-07-20 | 2017-11-10 | 中国电力科学研究院 | A kind of adjustable rotary magnetic field vacuum interrupter |
| CN107887222A (en) * | 2017-12-15 | 2018-04-06 | 国网江苏省电力有限公司淮安供电分公司 | Permanent magnetism arc extinguishing livewire work crowbar switch |
| CN110853972A (en) * | 2019-11-06 | 2020-02-28 | 西安交通大学 | DC vacuum arc-extinguishing chamber with composite magnetic circuit structure and DC vacuum switch using same |
| CN110853971A (en) * | 2019-11-06 | 2020-02-28 | 西安交通大学 | Annular permanent magnet strong transverse magnetic DC vacuum arc-extinguishing chamber and DC vacuum switch |
| CN114695015A (en) * | 2022-04-28 | 2022-07-01 | 西安交通大学 | Vacuum arc-extinguishing chamber based on Halbach permanent magnet longitudinal magnetic field |
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2014
- 2014-10-14 CN CN201410540675.5A patent/CN105513884A/en active Pending
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| JPS63236230A (en) * | 1987-03-23 | 1988-10-03 | 松下電工株式会社 | Sealed type contact |
| GB2251127B (en) * | 1990-11-19 | 1995-04-05 | Westinghouse Electric Corp | Vacuum circuit interrupter contacts |
| US5687472A (en) * | 1994-05-12 | 1997-11-18 | Kabushiki Kaisha Toshiba | Method of manufacturing a vacuum interrupter |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957750A (en) * | 2016-06-27 | 2016-09-21 | 北京奥普科星技术有限公司 | Automatic ageing detection and storage packaging production line of vacuum arc-extinguishing chamber |
| CN105957750B (en) * | 2016-06-27 | 2018-02-16 | 北京奥普科星技术有限公司 | A kind of automatic ageing of vacuum interrupter detects and storage package production line |
| CN106783371B (en) * | 2017-01-06 | 2018-12-14 | 安徽通球智能化科技有限公司 | A kind of vacuum extinction cell structure of breaker |
| CN106783371A (en) * | 2017-01-06 | 2017-05-31 | 中科电力装备（安徽）智能化科技有限公司 | A kind of vacuum extinction cell structure of breaker |
| CN106953236A (en) * | 2017-03-21 | 2017-07-14 | 国家电网公司 | Potential transfer fast arc extinction device |
| CN107342186A (en) * | 2017-07-20 | 2017-11-10 | 中国电力科学研究院 | A kind of adjustable rotary magnetic field vacuum interrupter |
| CN107342186B (en) * | 2017-07-20 | 2021-04-16 | 中国电力科学研究院 | Adjustable rotating magnetic field vacuum arc-extinguishing chamber |
| CN107887222A (en) * | 2017-12-15 | 2018-04-06 | 国网江苏省电力有限公司淮安供电分公司 | Permanent magnetism arc extinguishing livewire work crowbar switch |
| CN110853972A (en) * | 2019-11-06 | 2020-02-28 | 西安交通大学 | DC vacuum arc-extinguishing chamber with composite magnetic circuit structure and DC vacuum switch using same |
| CN110853971A (en) * | 2019-11-06 | 2020-02-28 | 西安交通大学 | Annular permanent magnet strong transverse magnetic DC vacuum arc-extinguishing chamber and DC vacuum switch |
| CN110853972B (en) * | 2019-11-06 | 2020-10-27 | 西安交通大学 | DC vacuum arc-extinguishing chamber with composite magnetic circuit structure and DC vacuum switch using same |
| CN114695015A (en) * | 2022-04-28 | 2022-07-01 | 西安交通大学 | Vacuum arc-extinguishing chamber based on Halbach permanent magnet longitudinal magnetic field |
| CN114695015B (en) * | 2022-04-28 | 2024-05-17 | 西安交通大学 | Vacuum arc-extinguishing chamber based on longitudinal magnetic field of halbach permanent magnet |
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Application publication date: 20160420 |