CN103198970B - Vacuum envelope with double-fracture structure - Google Patents
Vacuum envelope with double-fracture structure Download PDFInfo
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- CN103198970B CN103198970B CN201310091111.3A CN201310091111A CN103198970B CN 103198970 B CN103198970 B CN 103198970B CN 201310091111 A CN201310091111 A CN 201310091111A CN 103198970 B CN103198970 B CN 103198970B
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- moving contact
- connecting rod
- bellows
- fixed
- contact connecting
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Abstract
The invention discloses a vacuum envelope with a double-fracture structure. The vacuum envelope with the double-fracture structure comprises an outer shell, an interior of a cavity formed by the whole outer shell and a bellow is vacuum, and the outer shell is composed of a tube body, an upper end enclosure and a lower end enclosure, wherein the upper end enclosure and the lower end enclosure are respectively connected at the upper end and the lower end of the tube body. The tube body is divided into an upper section of the tube body and a lower section of the tube body. A flange plate is fixed between the upper section of the tube body and the lower section of the tube body, and a static contact is arranged on the flange plate. An upper moving contact connection rod and a lower moving contact connection rod are arranged on the upper end enclosure and the lower end enclosure in a sliding mode, an upper moving contact is arranged at the bottom end of the position, extending to the interior of the outer shell, of the upper moving contact connection rod, a lower moving contact is arranged at the top end of the position, extending into the interior of the outer shell, of the lower moving contact connection rod, and the upper moving contact and the lower moving contact normally contact with the upper face and the lower face of the static contact under the external air pressure. The vacuum envelopes with the double-fracture structures are used in series to be suitable for a high-voltage switch circuit. The vacuum envelopes with the double-fracture structures are used in parallel to be suitable for a high-voltage switch circuit. The equipment structure can be simplified, the equipment size is reduced, manufacturing cost of equipment is reduced and equipment performance is improved.
Description
Technical field:
The present invention relates to middle/high-voltage electrical appliance technical field, particularly the vacuum bubbles of double-fracture structure that uses of high-voltage switch field
Background technology:
In middle/high-voltage electrical appliance technical field, particularly the high-voltage switch field of big current gradually adopts vacuum bubbles to substitute the mechanical type contact of tradition use, the switching of contact is made to occur in vacuum bubbles, utilize the high dielectric property in vacuum bubbles under high vacuum environment and strong blow-out, avoid electric arc to the pollution of environment, improve switch performance, reduce equipment volume.
The structure of existing vacuum bubbles only has a pair dynamic and static contact.As shown in Figure 1, the cylindrical shell 105 of whole shell constructed from glass or pottery is connected on cylindrical shell 105 with closing, upper on lower surface, bottom head 107, 108 are formed, bottom head 108 is fixed with fixed lever 106 under fixed contact, the top that under fixed contact, fixed lever 106 extends into enclosure is fixed with fixed contact 102, moving contact connecting rod 103 slide arrangement is on upper cover 107, the bottom extending into enclosure at moving contact connecting rod 103 is fixed with moving contact 101, on moving contact connecting rod 103, cover has bellows 104, and make upper end and upper cover 107 seal welding of bellows 104, lower end seal welding is on moving contact connecting rod 103, just can height of formation vacuum in cavity between the outer surface of such bellows 104 and the inner surface of shell.Under the pressure of extraneous air, between dynamic and static contact 101,102, be generally contact condition, only when moving contact connecting rod 103 moves upward, between dynamic and static contact 101,102 just separately.
Along with the development of high voltage, big current distribution, only have the vacuum bubbles of a pair dynamic and static structure of contact terminal, can not meet the requirement of high voltage and big current controller switching equipment.Our company once applied for " vacuum tube series parallel circuit structure for vacuum of vacuum on-load operation switch " patent for this reason, patent No. ZL201120372438.4, but series parallel circuit structure adds the complexity of equipment after all.
Summary of the invention:
Technical problem to be solved by this invention is intended to the deficiency overcoming above-mentioned prior art, and proposes a kind of vacuum bubbles of double-fracture structure.
Technical problem to be solved by this invention can realize by following technical solution:
The vacuum bubbles of double-fracture structure, comprise a shell, described shell is made up of a cylindrical shell and the closed upper and lower end socket be connected on the upper and lower end face of cylindrical shell, it is characterized in that, described cylindrical shell is divided into upper and lower two joint cylindrical shells, between upper joint cylindrical shell and lower joint cylindrical shell, be fixed with a ring flange, described ring flange is provided with a fixed contact; On described upper and lower end socket, slide arrangement has upper and lower moving contact connecting rod, the bottom that wherein moving contact connecting rod extends to enclosure on described is fixed with moving contact on, and the top extending to enclosure at described lower moving contact connecting rod is fixed with a lower moving contact; On described upper and lower moving contact connecting rod, cover has upper and lower bellows, seal welding between the upper end of wherein said upper bellows and described upper cover, the lower end of upper bellows and upper moving contact connecting rod seal welding respectively; Seal welding between the lower end of described lower bellows and described bottom head, the upper end of lower bellows and upper moving contact connecting rod seal welding, make the cavity between the outer surface of upper and lower bellows and the inner surface of shell form vacuum; The upper and lower faces of described upper and lower moving contact and described fixed contact is in normal contact condition under external air pressure.
In a preferred embodiment of the invention, to extend to shell outer and in the outer rim extending to the ring flange that housing exterior is divided, be evenly equipped with some electrical connections and fixing hole for the outer rim of described ring flange.
In a preferred embodiment of the invention, described upper and lower moving contact connecting rod cylinder is coaxially arranged.
In a preferred embodiment of the invention, described upper cover is provided with lining on, a upper cover is installed in the upper end of exposing upper cover at upper lining, the described upper lining part extended in shell is positioned at described upper bellows, and described upper moving contact connecting rod slides through described upper lining and upper cover; Described bottom head is provided with lining, capping is installed in the upper end of exposing bottom head at lower lining, the described lower lining part extended in shell is positioned at described lower bellows, and described lower moving contact connecting rod slides through described lower lining and lower capping.
In a preferred embodiment of the invention, upper and lower moving contact connecting rod is fixed with upper and lower radome respectively, wherein go up the below that radome is positioned at described upper bellows, lower radome is positioned at the top of described lower bellows.
In a preferred embodiment of the invention, in order to make to eliminate the arcing produced when moving contact is separated with fixed contact better, described fixed contact is provided with some extinguishing arc holes; Corresponding to the some extinguishing arc hole sites on fixed contact, upper and lower moving contact also offers some extinguishing arc holes.
Owing to have employed technical scheme as above, the vacuum bubbles of double-fracture structure of the present invention provides multiple possibility to the connection of circuit:
When 1, only having upper or the action of lower moving contact connecting rod, identical with the effect of traditional vacuum bubble.
2, during the action simultaneously of upper and lower moving contact connecting rod, the fixed contact on spacer flanger dish is vacant, connects as double-fracture.
3, during the action simultaneously of upper and lower moving contact connecting rod, the fixed contact on spacer flanger dish connects another pole, in parallel as double-fracture.
The vacuum bubbles of this double-fracture structure, series connection uses, and is applicable in high-tension switching circuit; In parallel to use, be applicable in the switching circuit of big current, can simplified apparatus structure and reduce equipment volume, reduce device fabrication cost, improve equipment performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing vacuum bubbles.
Fig. 2 is the structural representation of double-fracture vacuum bubbles of the present invention.
Fig. 3 is the combination schematic diagram in double-fracture vacuum bubbles of the present invention between ring flange and fixed contact.
Fig. 4 is double-fracture vacuum bubbles schematic appearance of the present invention.
Fig. 5 is flange plate structure schematic diagram in double-fracture vacuum bubbles of the present invention.
Embodiment
The present invention is further described below in conjunction with the drawings and specific embodiments.
See Fig. 2 to Fig. 5, the vacuum bubbles of the double-fracture structure provided in figure, comprises shell, and this shell is made up of a cylindrical shell 209 and the upper and lower end socket 210,211 be connected on the upper and lower end face of cylindrical shell 209.
Cylindrical shell 209 adopts glass or pottery to make, and it is divided into upper and lower two joint cylindrical shell 209a, 209b, between upper joint cylindrical shell 209a and lower joint cylindrical shell 209b, be fixed with a ring flange 208, the material of ring flange 208 be oxygen-free copper or other.A fixed contact installing hole 208a(is offered see Fig. 5) at the center of ring flange 208, the upper and lower end faces of upper and lower two joint cylindrical shell 209a, 209b and ring flanges 208 are tightly connected, and it is outer and in the outer rim of ring flange extending to the outer part of shell 209, be evenly equipped with some be electrically connected and fixing hole 208b that the outer rim of ring flange 208 extends to shell 209.Hole 208b is circular hole.
In the fixed contact installing hole 208a of ring flange 208, be embedded with a fixed contact 203, the material of fixed contact 203 is copper-tungsten, and upper and lower faces is as fixed contact contact-making surface.
Upper cover 210 is provided with lining 211 on, a upper cover 212 is installed in the upper end of exposing upper cover 210 at upper lining 211, upper moving contact connecting rod 204 slides through lining 211 and upper cover 212, on upper moving contact connecting rod 204, cover has bellows 206 on, in order to shield, upper moving contact connecting rod 204 is fixed with radome 213, and upper radome 213 is positioned at the below of bellows 206.
Bottom head 211 is provided with lining 214, capping 215 is installed in the upper end of exposing bottom head 211 at lower lining 214, lower moving contact connecting rod 205 slides through lower lining 214 and lower capping 215, and on lower moving contact connecting rod 205, cover has bellows 207.In order to shield, lower moving contact connecting rod 205 is fixed with lower radome 216, lower radome 216 is positioned at the top of lower bellows 207.
The upper end of upper bellows 206 and upper cover 210 seal welding, lower end seal welding is on upper moving contact connecting rod 204, the lower end of lower bellows 207 and bottom head 211 seal welding, upper end seal welding is on lower moving contact connecting rod 205, go up outer surface and upper cover 210 inner surface of bellows 206 like this, cylindrical shell 209 inner surface, the inner surface of bottom head 211, vacuum can be formed in the cavity formed between the outer surface of lower bellows 207, make, lower moving contact 201, leading between 202 and fixed contact 203, breaking occurs in vacuum environment, utilize the high dielectric property under high vacuum environment and strong blow-out, avoid electric arc to the pollution of environment, improve switch performance, reduce equipment volume.
Upper and lower moving contact 204,205 connecting rod cylinder is coaxially arranged.The bottom extending to shell 209 inside at upper moving contact connecting rod 204 is fixed with moving contact 201 on, the top extending to shell 209 inside at lower moving contact connecting rod 205 is fixed with a lower moving contact 202, and the upper and lower faces of upper and lower moving contact 201,202 and fixed contact 203 is in normal contact condition under external air pressure.
Have External Force Acting on upper and lower moving contact connecting rod 204,205 for the ease of working as, upper and lower moving contact 201,202 is convenient to be separated blow-out with fixed contact 203, and fixed contact 203 is provided with some pin arc hole 203a; Corresponding to the 203a position, some pin arc holes on fixed contact 203, upper and lower moving contact 201,202 also offers some pin arc holes 201a, 202a.
Above content shows and describes general principle of the present invention, principal character and advantage of the present invention.The personnel of the industry should understand; the present invention is not by the restriction of above-mentioned example; above-mentioned example just illustrates principle of the present invention with description in explanation; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all will fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (1)
1. the vacuum bubbles of double-fracture structure, comprise a shell, described shell is made up of a cylindrical shell and the closed upper and lower end socket be connected on the upper and lower end face of cylindrical shell, it is characterized in that, described cylindrical shell is divided into upper and lower two joint cylindrical shells, between upper joint cylindrical shell and lower joint cylindrical shell, be fixed with a ring flange, described ring flange is provided with a fixed contact; On described upper and lower end socket, slide arrangement has upper and lower moving contact connecting rod, the bottom that wherein moving contact connecting rod extends to enclosure on described is fixed with moving contact on, and the top extending to enclosure at described lower moving contact connecting rod is fixed with a lower moving contact; On described upper and lower moving contact connecting rod, cover has upper and lower bellows, seal welding between the upper end of wherein said upper bellows and described upper cover, the lower end of upper bellows and upper moving contact connecting rod seal welding respectively; Seal welding between the lower end of described lower bellows and described bottom head, the upper end of lower bellows and upper moving contact connecting rod seal welding, make the cavity between the outer surface of upper and lower bellows and the inner surface of shell form vacuum; The upper and lower faces of described upper and lower moving contact and described fixed contact is in normal contact condition under external air pressure;
It is outer and in the outer rim extending to the ring flange that housing exterior is divided, be evenly equipped with some electrical connections and fixing hole that the outer rim of described ring flange extends to shell;
Described upper and lower moving contact connecting rod cylinder is coaxially arranged;
Described upper cover is provided with lining on, and a upper cover is installed in the upper end of exposing upper cover at upper lining, and described upper moving contact connecting rod slides through described upper lining and upper cover; Described bottom head is provided with lining, and capping is installed in the upper end of exposing bottom head at lower lining, and described lower moving contact connecting rod slides through described lower lining and lower capping;
Upper and lower moving contact connecting rod is fixed with upper and lower radome respectively, and wherein go up the below that radome is positioned at described upper bellows, lower radome is positioned at the top of described lower bellows;
Described fixed contact is provided with some extinguishing arc holes; Corresponding to the some extinguishing arc hole sites on fixed contact, upper and lower moving contact also offers some extinguishing arc holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091111.3A CN103198970B (en) | 2013-03-20 | 2013-03-20 | Vacuum envelope with double-fracture structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091111.3A CN103198970B (en) | 2013-03-20 | 2013-03-20 | Vacuum envelope with double-fracture structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103198970A CN103198970A (en) | 2013-07-10 |
| CN103198970B true CN103198970B (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310091111.3A Active CN103198970B (en) | 2013-03-20 | 2013-03-20 | Vacuum envelope with double-fracture structure |
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| CN (1) | CN103198970B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021977B (en) * | 2014-06-24 | 2016-02-10 | 沈阳华德海泰电器有限公司 | A kind of porcelain knob double-fracture isolation circuit breakers |
| CN106712278B (en) * | 2017-01-25 | 2024-01-30 | 广东光达电气有限公司 | Dual-power supply fast switching switch |
| CN107622885A (en) * | 2017-07-21 | 2018-01-23 | 上海华明电力设备制造有限公司 | A kind of switch with double-isolation of vacuum on-load operation switch, double-fracture vacuum bubbles switching circuit |
| CN107248461A (en) * | 2017-07-21 | 2017-10-13 | 上海华明电力设备制造有限公司 | A kind of authentic vacuole switching circuit of vacuum on-load operation switch |
| CN107293416A (en) * | 2017-07-21 | 2017-10-24 | 上海华明电力设备制造有限公司 | A kind of double-fracture vacuum bubbles switching circuit of vacuum on-load operation switch |
| CN110189937A (en) * | 2019-06-21 | 2019-08-30 | 国家电网有限公司 | A kind of double-fracture vacuum has load switching switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200944371Y (en) * | 2006-07-07 | 2007-09-05 | 耐吉科技股份有限公司 | Double-lift vacuum extinction chamber |
| CN102044375A (en) * | 2010-12-15 | 2011-05-04 | 北京京东方真空电器有限责任公司 | Vacuum switch tube |
| CN102254734A (en) * | 2011-06-30 | 2011-11-23 | 西安交通大学 | High-voltage single-fracture vacuum arc extinguishing chamber |
| EP2560179A1 (en) * | 2010-04-15 | 2013-02-20 | Beijing Sojo Electric Co., Ltd | Vacuum arc extinguishing chamber with double breaks |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654632B2 (en) * | 1985-07-09 | 1994-07-20 | 三菱電機株式会社 | Extinguishing device |
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2013
- 2013-03-20 CN CN201310091111.3A patent/CN103198970B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200944371Y (en) * | 2006-07-07 | 2007-09-05 | 耐吉科技股份有限公司 | Double-lift vacuum extinction chamber |
| EP2560179A1 (en) * | 2010-04-15 | 2013-02-20 | Beijing Sojo Electric Co., Ltd | Vacuum arc extinguishing chamber with double breaks |
| CN102044375A (en) * | 2010-12-15 | 2011-05-04 | 北京京东方真空电器有限责任公司 | Vacuum switch tube |
| CN102254734A (en) * | 2011-06-30 | 2011-11-23 | 西安交通大学 | High-voltage single-fracture vacuum arc extinguishing chamber |
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| CN103198970A (en) | 2013-07-10 |
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