CN103325613A - Vacuum circuit breaker - Google Patents
Vacuum circuit breaker Download PDFInfo
- Publication number
- CN103325613A CN103325613A CN2013102771589A CN201310277158A CN103325613A CN 103325613 A CN103325613 A CN 103325613A CN 2013102771589 A CN2013102771589 A CN 2013102771589A CN 201310277158 A CN201310277158 A CN 201310277158A CN 103325613 A CN103325613 A CN 103325613A
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- vacuum circuit
- shell body
- breaker
- contact
- piston
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- Gas-Insulated Switchgears (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a vacuum circuit breaker. According to the vacuum circuit breaker, through structures of a piston, a sealing cover, a gas nozzle and the like, air is added into and exhausted from the gas nozzle through an air compressor to control the reciprocating movement of a piston, and the connection and disconnection between a static contact and a moving contact are driven. Compared with the traditional mechanical linkage, gas is employed as an operation medium, the security is higher, the maintenance cycle of gas control is longer, the structure is more simple, the influence of an environment is smaller, at the same time, since no mechanical part passes through a shell body to act, the sealing process requirement of the shell is lower compared with the mechanical one, the production cost is lower, and the vacuum circuit breaker has a good social benefit.
Description
Technical field
The present invention relates to a kind of vacuum circuit-breaker, belong to appliance field.
Background technology
Traditional vacuum circuit-breaker connects the control moving contact by mechanical mechanism and is connected connection and disconnection with fixed contact, and this operator scheme is higher to the sealing technology of vacuum circuit-breaker, and can there be certain potential safety hazard in mechanical connection.
Summary of the invention
The invention provides a kind of technical scheme that can overcome the above problems.
The present invention realizes by the following method:
A kind of vacuum circuit-breaker, comprise shell body and be arranged on the interior fixed contact of shell body, moving contact, vacuumize in the described shell body, it is characterized in that: described vacuum circuit-breaker also comprises valve, piston, seal cover, described moving contact comprises conductive contact, mobile conducting block, described fixed contact is fixed on shell body inside, a wherein end of described fixed contact stretches out shell body as the circuit junction A of vacuum circuit-breaker, the conductive contact of described moving contact is fixed on shell body inside, the mobile conducting block of described moving contact and an end of conductive contact are flexibly connected, and the other end of described conductive contact stretches out shell body as the circuit junction B of vacuum circuit-breaker;
Described seal cover and shell body are tightly connected, the piston head of described mobile conducting block one end and piston is rigidly connected, described piston head can move back and forth the mobile conducting block of drive in seal cover and fixed contact connects or disconnects, described valve is arranged on periphery seal cover and the integral body shell body formation, be communicated with the cavity of piston head, by to the bleeding and aerating of valve, realize moving back and forth of piston head.
As further innovation of the present invention, described conductive contact and mobile conducting block are flexibly connected by journal bearing.
As further innovation of the present invention, be provided with sealing ring on the described piston.
As further innovation of the present invention, described sealing ring is the X-shaped sealing ring.
As further innovation of the present invention, be perfused with sealing machine oil in the gap between described piston and the valve.
As further innovation of the present invention, the contact portion of described mobile conducting block and fixed contact is the U-shaped hook structure of working in coordination.
Beneficial effect of the present invention is:
1. the present invention passes through piston, seal cover, the structures such as valve, by air compressor to the valve aerating, bleed the moving back and forth of control piston, thereby drive fixed contact and be connected connection and disconnection with moving contact, than traditional mechanical linkage, the present invention adopts gas higher as the operation media security, the maintenance period of gas control is long, structure is also simpler, affected by environment less, simultaneously the present invention carries out start because pass shell body without any mechanical part, sealing technology requirement for shell body is lower than mechanical type, and production cost is also lower, has good social benefit.
2. conductive contact of the present invention and mobile conducting block are flexibly connected by journal bearing, make the moving resistance of mobile conducting block of the present invention when work lower more energy-conservation, and simultaneously bearing connection is also more stable and durable, safeguards also fairly simple.
3. at piston the X-shaped sealing ring is set, makes the present invention have the motion lubrification of better sealing and piston, further improved stability in use of the present invention.
4. perfusion sealing machine oil between piston and valve has further improved sealing and motion lubrification, has further improved stability in use of the present invention.
5.U it is more stable that the shape hook structure than traditional metal contact piece, connects, contact area is also larger, has prevented the variety of issue that inhomogeneous contact causes.
Description of drawings
Fig. 1 is the generalized section of a kind of vacuum circuit-breaker of the present invention.
Among the figure: 1, shell body; 2, seal cover; 3, conductive contact; 4, valve; 5, sealing ring; 6, piston; 7, air exhauster; 8, fixed contact; 9, mobile conducting block; 10, sealing machine oil.
Embodiment
As shown in Figure 1, this vacuum circuit breaker comprises shell body 1, seal cover 2, valve 4, moving contact, fixed contact 8, piston 6, seal cover 2 and shell body 1 are tightly connected, being provided with one in shell body 1 supplies piston 6 to make the cavity that moves back and forth, cavity is in communication with the outside by valve 4, in order to guarantee that air-tightness is provided with the sealing ring 5 of an X-shaped at piston, and poured into sealing machine oil 10 in the cavity between valve 4 and the piston 6, on shell body, also be provided with the projection circle for limiting piston 6 movement travels, lubrification when so also having guaranteed piston 6 work, moving contact, fixed contact 8 all is arranged on shell body inside, a wherein end of fixed contact 8 stretches out shell body as circuit junction A, moving contact comprises conductive contact 3 and mobile conducting block 9, conductive contact one end stretches out shell body and is provided with the through hole that a mobile conducting block 9 of confession moves around as circuit junction B at conductive contact 3, in through hole, be provided with journal bearing, conductive contact 3 and mobile conducting block 9 are slidingly connected, one end and the piston 6 of mobile conducting block 9 are rigidly connected, mobile conducting block 9 is under the drive of piston 6, with fixed contact 8 contact or separate, wherein the contact jaw head of mobile conducting block 9 and fixed contact 8 is the U-shaped hook formation of working in coordination, guaranteed the stability that connects, can produce limit effect after the simultaneously U-shaped hook tension, avoid piston 6 bottoming and damage, be connected with air exhauster 7 at valve 4, shell body is inner for vacuumizing.
During use, this vacuum circuit breaker is passed through circuit junction A, circuit junction B accesses power distribution circuit, this moment, circuit was in off-state, piston 6 is recovered because of vacuum effect, if want to connect circuit, then bleed from valve 4, when the cavity inside vacuum degree of piston 6 during greater than the vacuum degree of shell body 1 inside, piston 6 is promoted by negative pressure, drive moving contact i.e. mobile conducting block 9 and fixed contact 8 connections, thereby the closed-loop path, because the vacuum structure in the shell body, so can not produce electric spark when connecting, and traditional vacuum circuit-breaker, also need to realize arc extinguishing by means of a large amount of ceramic cushion blocks and complicated vacuum technology, and vacuum circuit-breaker of the present invention is the closure disconnection that atmospheric pressure is controlled contact in the circuit breaker with air specifically, because the low electric conductivity of air, so that this vacuum circuit breaker has higher fail safe, whole circuit breaker only has piston 6 places to realize the sealing of whole device with X-shaped sealing ring 5, and sealing technology requires lower, produce simpler and easyly, have good social benefit.
Claims (6)
1. vacuum circuit-breaker, comprise shell body and be arranged on the interior fixed contact of shell body, moving contact, vacuumize in the described shell body, it is characterized in that: described vacuum circuit-breaker also comprises valve, piston, seal cover, described moving contact comprises conductive contact, mobile conducting block, described fixed contact is fixed on shell body inside, a wherein end of described fixed contact stretches out shell body as the circuit junction A of vacuum circuit-breaker, the conductive contact of described moving contact is fixed on shell body inside, the mobile conducting block of described moving contact and an end of conductive contact are flexibly connected, and the other end of described conductive contact stretches out shell body as the circuit junction B of vacuum circuit-breaker;
Described seal cover and shell body are tightly connected, the piston head of described mobile conducting block one end and piston is rigidly connected, described piston head can move back and forth the mobile conducting block of drive in seal cover and fixed contact connects or disconnects, described valve is arranged on periphery seal cover and the integral body shell body formation, be communicated with the cavity of piston head, by to the bleeding and aerating of valve, realize moving back and forth of piston head.
2. a kind of vacuum circuit-breaker as claimed in claim 1, it is characterized in that: described conductive contact and mobile conducting block are flexibly connected by journal bearing.
3. a kind of vacuum circuit-breaker as claimed in claim 1 is characterized in that: be provided with sealing ring on the described piston.
4. a kind of vacuum circuit-breaker as claimed in claim 3, it is characterized in that: described sealing ring is the X-shaped sealing ring.
5. a kind of vacuum circuit-breaker as claimed in claim 1 is characterized in that: be perfused with sealing machine oil in the gap between described piston and the valve.
6. a kind of vacuum circuit-breaker as claimed in claim 1, it is characterized in that: the contact portion of described mobile conducting block and fixed contact is the U-shaped hook structure of working in coordination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277158.9A CN103325613B (en) | 2013-07-04 | 2013-07-04 | A kind of vacuum circuit-breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277158.9A CN103325613B (en) | 2013-07-04 | 2013-07-04 | A kind of vacuum circuit-breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103325613A true CN103325613A (en) | 2013-09-25 |
| CN103325613B CN103325613B (en) | 2015-09-30 |
Family
ID=49194296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310277158.9A Active CN103325613B (en) | 2013-07-04 | 2013-07-04 | A kind of vacuum circuit-breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN103325613B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979108A (en) * | 2015-06-30 | 2015-10-14 | 国家电网公司 | Operating mechanism and locomotive using same |
| CN105513886A (en) * | 2016-02-03 | 2016-04-20 | 深圳市森源电力技术有限公司 | Vacuum circuit breaker with good sealing performance |
| CN105575721A (en) * | 2016-02-03 | 2016-05-11 | 深圳市森源电力技术有限公司 | Vacuum circuit breaker with double outer shell bodies |
| CN105655195A (en) * | 2016-02-03 | 2016-06-08 | 深圳市森源电力技术有限公司 | Novel vacuum circuit breaker |
| CN105655193A (en) * | 2016-01-28 | 2016-06-08 | 南京开关厂有限公司 | Vacuum circuit breaker |
| CN105810499A (en) * | 2016-04-15 | 2016-07-27 | 颜声林 | Vacuum circuit breaker |
| CN105810503A (en) * | 2016-04-15 | 2016-07-27 | 颜声林 | Smart phone-based vacuum circuit breaker |
| CN106847603A (en) * | 2017-02-13 | 2017-06-13 | 武汉大学 | Gas type high-voltage charging is switched |
| CN109461613A (en) * | 2017-09-06 | 2019-03-12 | 平高集团威海高压电器有限公司 | Moved end component, device for switching and GIS device using the moved end component |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995198A (en) * | 1973-05-14 | 1976-11-30 | Licentia Patent-Verwaltungs-G.M.B.H. | High voltage circuit breaker |
| US4788391A (en) * | 1987-03-26 | 1988-11-29 | Asea Brown Boveri Ag | Hydraulic or pneumatic drive for actuating the movable switch contact of a medium and/or high-voltage power switch |
| CN1057733A (en) * | 1990-06-26 | 1992-01-08 | 梅兰日兰公司 | Primary cut-out with gas-insulated and pneumatic operator |
| CN1070284A (en) * | 1991-09-06 | 1993-03-24 | 塞谢朗有限公司 | The drive apparatus with pressure medium that is used for the open and close switch contact |
| CN203434082U (en) * | 2013-07-04 | 2014-02-12 | 万能亿自动化科技（苏州）有限公司 | Vacuum circuit breaker |
-
2013
- 2013-07-04 CN CN201310277158.9A patent/CN103325613B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995198A (en) * | 1973-05-14 | 1976-11-30 | Licentia Patent-Verwaltungs-G.M.B.H. | High voltage circuit breaker |
| US4788391A (en) * | 1987-03-26 | 1988-11-29 | Asea Brown Boveri Ag | Hydraulic or pneumatic drive for actuating the movable switch contact of a medium and/or high-voltage power switch |
| CN1057733A (en) * | 1990-06-26 | 1992-01-08 | 梅兰日兰公司 | Primary cut-out with gas-insulated and pneumatic operator |
| CN1070284A (en) * | 1991-09-06 | 1993-03-24 | 塞谢朗有限公司 | The drive apparatus with pressure medium that is used for the open and close switch contact |
| CN203434082U (en) * | 2013-07-04 | 2014-02-12 | 万能亿自动化科技（苏州）有限公司 | Vacuum circuit breaker |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979108A (en) * | 2015-06-30 | 2015-10-14 | 国家电网公司 | Operating mechanism and locomotive using same |
| CN104979108B (en) * | 2015-06-30 | 2019-06-11 | 国家电网公司 | A kind of operating mechanism and the locomotive using the operating mechanism |
| CN105655193A (en) * | 2016-01-28 | 2016-06-08 | 南京开关厂有限公司 | Vacuum circuit breaker |
| CN105513886A (en) * | 2016-02-03 | 2016-04-20 | 深圳市森源电力技术有限公司 | Vacuum circuit breaker with good sealing performance |
| CN105575721A (en) * | 2016-02-03 | 2016-05-11 | 深圳市森源电力技术有限公司 | Vacuum circuit breaker with double outer shell bodies |
| CN105655195A (en) * | 2016-02-03 | 2016-06-08 | 深圳市森源电力技术有限公司 | Novel vacuum circuit breaker |
| CN105810499A (en) * | 2016-04-15 | 2016-07-27 | 颜声林 | Vacuum circuit breaker |
| CN105810503A (en) * | 2016-04-15 | 2016-07-27 | 颜声林 | Smart phone-based vacuum circuit breaker |
| CN106847603A (en) * | 2017-02-13 | 2017-06-13 | 武汉大学 | Gas type high-voltage charging is switched |
| CN106847603B (en) * | 2017-02-13 | 2018-11-13 | 武汉大学 | Gas type high-voltage charging switchs |
| CN109461613A (en) * | 2017-09-06 | 2019-03-12 | 平高集团威海高压电器有限公司 | Moved end component, device for switching and GIS device using the moved end component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103325613B (en) | 2015-09-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENGSI COUNTY POWER SUPPLY BRANCH OF STATE GRID C Free format text: FORMER OWNER: WANNENGYI AUTOMATION SCIENCE + TECHNOLOGY (SUZHOU) CO., LTD. Effective date: 20150907 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ye Junhui Inventor after: Yan Mingbo Inventor after: Mao Xiaopu Inventor after: He Tao Inventor after: Guan Junbin Inventor before: Li Chunlin |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI CHUNLIN TO: YE JUNHUI YAN MINGBO MAO XIAOPU HE TAO GUAN JUNBIN |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20150907 Address after: 202450, No. 301, Xing Hai Road, vegetable Town, Shengsi County, Zhoushan, Zhejiang Applicant after: STATE GRID ZHEJIANG ELECTRIC POWER COMPANY Address before: 215000 No. 6, Huangpu street, Shishan Industrial Park, New District, Jiangsu, Suzhou Applicant before: UT-System Technologies (Suzhou) Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |