CN103325613B - A kind of vacuum circuit-breaker - Google Patents
A kind of vacuum circuit-breaker Download PDFInfo
- Publication number
- CN103325613B CN103325613B CN201310277158.9A CN201310277158A CN103325613B CN 103325613 B CN103325613 B CN 103325613B CN 201310277158 A CN201310277158 A CN 201310277158A CN 103325613 B CN103325613 B CN 103325613B
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- shell body
- breaker
- vacuum circuit
- piston
- contact
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- Gas-Insulated Switchgears (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a kind of vacuum circuit-breaker, the present invention passes through piston, seal cover, the structures such as valve, by air compressor to valve aerating, to bleed the moving back and forth of control piston, thus drive connection and the disconnection of fixed contact and moving contact, compared to traditional mechanical linkage, the present invention adopts gas higher as operation media security, the maintenance period that gas controls is long, structure is also simpler, affected by environment less, the present invention is simultaneously because carry out start without any mechanical part through shell body, sealing technology for shell body requires lower compared to mechanical type, production cost is also lower, there is 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 passes through connection and the disconnection of mechanical mechanism connection control moving contact and fixed contact, this behaviour
The sealing technology of operation mode to vacuum circuit-breaker is higher, and mechanical connection can exist certain potential safety hazard.
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 fixed contact in shell body, moving contact, vacuumize in described shell body, described vacuum circuit-breaker also comprises valve, piston, seal cover, described moving contact comprises conductive contact, mobile conducting block, described fixed contact one end is fixed on shell body inside, the other end of described fixed contact stretches out the circuit junction A of shell body as vacuum circuit-breaker, one end that the conductive contact of moving contact is flexibly connected with mobile conducting block is fixed on shell body inside, the other end of described conductive contact stretches out the circuit junction B of shell body as 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 and drive mobile conducting block and fixed contact to connect or disconnect in seal cover, the periphery of the entirety formed with shell body that described valve is arranged on seal cover, with the cavity connects of piston head, by bleeding and aerating to valve, realize moving back and forth of piston head.
As further innovation of the present invention, described conductive contact is flexibly connected by journal bearing with mobile conducting block.
As further innovation of the present invention, described piston is provided with sealing ring.
As further innovation of the present invention, described sealing ring is X shape sealing ring.
As further innovation of the present invention, in the gap between described piston and valve, be perfused with sealing machine oil.
As further innovation of the present invention, the contact portion of described mobile conducting block and fixed contact is the U worked in coordination
Shape hook structure.
Beneficial effect of the present invention is:
1. the present invention is by the structure such as piston, seal cover, valve, by air compressor to valve aerating, control piston of bleeding past
Multiple mobile, thus drive connection and the disconnection of fixed contact and moving contact, compared to traditional mechanical linkage, the present invention adopts gas
Higher as operation media security, the maintenance period that gas controls is long, and structure is also more simple, affected by environment less, with
Time the present invention because carry out start without any mechanical part through shell body, the sealing technology for shell body require compared to
Mechanical type is lower, and production cost is also lower, has good social benefit.
2. conductive contact of the present invention is flexibly connected by journal bearing with mobile conducting block, makes mobile conduction of the present invention
Block moving resistance is operationally lower more energy-conservation, and bearing connects also more stable and durable simultaneously, safeguards also fairly simple.
3. X shape sealing ring is set on piston, makes the present invention have the motion lubrification of better sealing and piston,
Further increase stability in use of the present invention.
4. perfusion sealing machine oil between piston and valve, further improves sealing and motion lubrification, enters one
Step improves stability in use of the present invention.
5.U shape hook structure, compared to traditional metal contact piece, connects more stable, and contact area is also larger, prevents not
The various problems that even contact causes.
Accompanying drawing explanation
Fig. 1 is the generalized section of a kind of vacuum circuit-breaker of the present invention.
In 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, machine oil is sealed.
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, a cavity doing for piston 6 to move back and forth is provided with in shell body 1, cavity is in communication with the outside by valve 4, in order to ensure that air-tightness is provided with the sealing ring 5 of an X-shaped on piston, and poured into sealing machine oil 10 in cavity between valve 4 and piston 6, shell body is also provided with the projection circle for limiting piston 6 movement travel, also ensure that lubrification when piston 6 works like this, moving contact, fixed contact 8 is all arranged on shell body inside, shell body is stretched out as circuit junction A in wherein one end of fixed contact 8, moving contact comprises conductive contact 3 and mobile conducting block 9, conductive contact one end is stretched out shell body and on conductive contact 3, is provided with as circuit junction B the through hole that a mobile conducting block 9 of confession moves around, journal bearing is provided with in through hole, conductive contact 3 and mobile conducting block 9 are slidably 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, contact with fixed contact 8 or be separated, the contact jaw head wherein moving conducting block 9 and fixed contact 8 is the U-shaped hook formation of working in coordination, ensure that the stability of connection, limit effect can be produced after U-shaped hook tension simultaneously, avoid piston 6 bottoming and damage, valve 4 is connected with air exhauster 7, shell body is inner for vacuumizing.
During use, this vacuum circuit-breaker is accessed power distribution circuit, now circuit place by circuit junction A, circuit junction B
In off-state, piston 6 is recovered because of vacuum effect, circuit is connected if want, then bleed from valve 4, when the cavity inside vacuum degree of piston 6 is greater than the vacuum degree of shell body 1 inside, piston 6 is promoted by negative pressure, drive moving contact namely to move conducting block 9 to connect with fixed contact 8, thus closed-loop path, because the vacuum structure in shell body, so can not electric spark be produced when connecting, and traditional vacuum circuit-breaker, also need by means of a large amount of ceramic cushion blocks and complicated vacuum technology to realize arc extinguishing, and vacuum circuit-breaker of the present invention, with air specifically atmospheric pressure control the closed disconnection of contact in circuit breaker, because the low electric conductivity of air, this vacuum circuit-breaker is made to have higher fail safe, whole circuit breaker only has piston 6 place to use X-shaped sealing ring 5 to realize the sealing of whole device, sealing technology requires lower, produce simpler and easy, there is good social benefit.
Claims (6)
1. a vacuum circuit-breaker, comprise shell body and be arranged on the fixed contact in shell body, moving contact, vacuumize in 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 one end is fixed on shell body inside, the other end of described fixed contact stretches out the circuit junction A of shell body as vacuum circuit-breaker, one end that the conductive contact of moving contact is flexibly connected with mobile conducting block is fixed on shell body inside, the other end of described conductive contact stretches out the circuit junction B of shell body as 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 and drive mobile conducting block and fixed contact to connect or disconnect in seal cover, the periphery of the entirety formed with shell body that described valve is arranged on seal cover, with the cavity connects of piston head, by bleeding and aerating to valve, realize moving back and forth of piston head.
2. a kind of vacuum circuit-breaker as claimed in claim 1, is characterized in that: described conductive contact is flexibly connected by journal bearing with mobile conducting block.
3. a kind of vacuum circuit-breaker as claimed in claim 1, is characterized in that: described piston is provided with sealing ring.
4. a kind of vacuum circuit-breaker as claimed in claim 3, is characterized in that: described sealing ring is X shape 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 valve.
6. a kind of vacuum circuit-breaker as claimed in claim 1, 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 CN103325613A (en) | 2013-09-25 |
| CN103325613B true 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) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105655193B (en) * | 2016-01-28 | 2017-11-14 | 国网江苏省电力公司泰兴市供电公司 | A kind of vacuum circuit breaker |
| 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 |
| 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 |
| 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 |
| 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 |
Family Cites Families (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 |
| DE3709988A1 (en) * | 1987-03-26 | 1988-10-06 | Bbc Brown Boveri & Cie | HYDRAULIC OR PNEUMATIC DRIVE FOR ACTUATING THE MOVABLE SWITCHING CONTACT OF A MEDIUM AND / OR HIGH VOLTAGE CIRCUIT BREAKER |
| FR2663780B1 (en) * | 1990-06-26 | 1992-09-11 | Merlin Gerin | HIGH VOLTAGE CIRCUIT BREAKER WITH GAS INSULATION AND PNEUMATIC CONTROL MECHANISM. |
| CH684969A5 (en) * | 1991-09-06 | 1995-02-15 | Secheron Sa | A control device actuated by a pressurized fluid in particular for closing and opening the contacts of a circuit breaker. |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN103325613A (en) | 2013-09-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| 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 for 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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