CN108172458A - A kind of dual-power extra-high voltage vacuum interrupter - Google Patents
A kind of dual-power extra-high voltage vacuum interrupter Download PDFInfo
- Publication number
- CN108172458A CN108172458A CN201711462758.7A CN201711462758A CN108172458A CN 108172458 A CN108172458 A CN 108172458A CN 201711462758 A CN201711462758 A CN 201711462758A CN 108172458 A CN108172458 A CN 108172458A
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- China
- Prior art keywords
- auxiliary
- contact
- static contact
- fixed
- moving contact
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
Abstract
The invention discloses a kind of dual-power extra-high voltage vacuum interrupters, and the conductive connection plates for fixing two vacuum interrupters are connected including two vacuum interrupters and one;Each vacuum interrupter includes ceramic shell, end cover, moving contact, main static contact, auxiliary static contact, bellows component and metallic shield;Auxiliary static contact includes the fixed part being weldingly fixed on ceramic shell wall body and the ring shaped contact portion being set on moving contact periphery wall;Moving contact includes sliding part, for the main conductive part that be adapted to motion block in main static contact and for annular contact site is adapted in auxiliary static contact annular auxiliary conducting part.The present invention forms binary channel circuit, promotes electric conductivity, can be used for extra high voltage line.
Description
Technical field
The invention belongs to power switchgear technical fields, and in particular to a kind of dual-power extra-high voltage vacuum interrupter.
Background technology
Vacuum interrupter is generally by dynamic and static contact, metallic shield, bold and vigorous line pipe and a sealing being made of ceramic annulus
Container forms, and mechanism action makes dynamic and static contact, separation, bellows and moving contact and the flange welding of sealing container, ensures
When moving contact axially moves, the vacuum degree in container is unaffected.Vacuum interrupter has strong breaking capacity, and electric arc is not outer
The advantages that dew, permission frequent operation, it is suitable as the electrification on-off line operation of various types of vacuum switches.
Existing vacuum interrupter product is all single supply vacuum interrupter, in dual power supply occasion in application, needing to use
Double power source vacuum breaker can be just made as dual power supply switching equipment in disconnecting switch.
Invention content
It is good the object of the present invention is to provide a kind of shock resistance, non-damageable dual-power extra-high voltage vacuum extinction
Room.
Realizing the technical solution of the object of the invention is:A kind of dual-power extra-high voltage vacuum interrupter, including two vacuum
The conductive connection plates of two vacuum interrupters are fixed in arc-chutes and a connection;Each vacuum interrupter include ceramic shell,
End cover, moving contact, main static contact, auxiliary static contact, bellows component and metallic shield;Static contact is assisted to include welding
The fixed part being fixed on ceramic shell wall body and the ring shaped contact portion being set on moving contact periphery wall;Moving contact includes sliding
Portion, the ring for the main conductive part that is adapted to motion block in main static contact and for being adapted to contact site annular in auxiliary static contact
Shape auxiliary conducting part;The main static contact of two vacuum interrupters is electrically connected respectively with the tow sides of conductive connection plates;Each auxiliary
The fixed part of static contact is an annular slab, and each ceramic shell is divided into inside and outside two parts, and inside and outside two parts ceramics are outer
Shell is weldingly fixed on the tow sides of the fixed part of corresponding auxiliary static contact;It is set in the two lateral walls of each ceramic shell
There are two mounting groove, the mounting groove of two ceramic shells combines to form two caulking grooves, and one is fixed in each caulking groove and is used for electricity
The conductive panel of two auxiliary static contacts of connection and conductive connection plates.
Said program is further preferably:Moving contact further includes the auxiliary screen being fixed on annular auxiliary conducting part
Cover cover;Auxiliary shield cover includes being arranged on the first auxiliary shield pipe of ring shaped contact portion inner circumferential side and is arranged on ring shaped contact portion
Second auxiliary shield pipe of peripheral side, the first auxiliary shield pipe and the second auxiliary shield Guan Jun are fixed at the annular of moving contact
On auxiliary conducting part.
Said program is further preferably:Main static contact includes motion block, quiet piece, elastic connecting pipe and support spring;Quiet piece and
Elastic connecting pipe is each attached on the plate body of the corresponding one end of conductive connection plates, and the other end of elastic connecting pipe is fixed on the outer of motion block
On peripheral wall, quiet piece and support spring are sealed in interior vacuum-sealed cavity so as to be enclosed one;Support spring is set on quiet piece, support spring
One end be connected in conductive connection plates, the other end of support spring is connected on motion block;Under free state, support spring is by quiet piece and motion block
It struts to form gap.
Said program is further preferably:Each end cover is weldingly fixed on the outlet of a corresponding ceramic shell outer end
On, the center of each end cover is equipped with centre bore;Bellows component include being weldingly fixed on slip pipe in end cover centre bore,
The assistant metal pipe and the bellows of sealed connection slip pipe and assistant metal pipe being weldingly fixed on moving contact periphery wall;It is each dynamic tactile
Head reciprocatingly slides in a corresponding slip pipe.
Said program is further preferably:Also embedded with insulation tube on the periphery wall of moving contact, which is located at the
The inside of one auxiliary shield pipe.
The present invention has the following advantages:(1) by the way that two vacuum interrupters are linked into an integrated entity by conductive connection plates, make
It becomes double double power source vacuum arc-chutes gone out into one, while is compared with existing dual power supply switching mechanism, and occupied space is smaller.
(2) the main conductive part of moving contact and main static contact adaptation, the annular auxiliary conducting part of moving contact and auxiliary static contact adaptation, so as to
Binary channel circuit is formed, so as to promote electric conductivity, can be used for extra high voltage line.
Description of the drawings
Fig. 1 is a kind of dimensional structure diagram of the present invention;
Fig. 2 be double power source vacuum arc-chutes shown in Fig. 1 from another angle when a kind of dimensional structure diagram;
Fig. 3 is a kind of half section structure diagram of double power source vacuum arc-chutes shown in Fig. 1.
Label is shown in attached drawing:Vacuum interrupter 1, conductive connection plates 2, ceramic shell 3, caulking groove 31, conductive panel 32 are close
Block lid 4, moving contact 5, sliding part 51, main conductive part 52, annular auxiliary conducting part 53, auxiliary shield cover 54, the first auxiliary screen
Cover pipe 541, the second auxiliary shield pipe 542, insulation tube 55, main static contact 6, motion block 61, quiet piece 62, elastic connecting pipe 63, support spring
64, vacuum-sealed cavity 65 assists static contact 7, fixed part 71, ring shaped contact portion 72, bellows component 8, slip pipe 81, assistant metal
Pipe 82, bellows 83, metallic shield 9.
Specific embodiment
(embodiment 1)
The present embodiment is a kind of dual-power extra-high voltage vacuum interrupter, as shown in Fig. 1 to Fig. 3, is gone out including two vacuum
The conductive connection plates 2 of two vacuum interrupters are fixed in arc chamber 1 and a connection;Each vacuum interrupter include ceramic shell 3,
End cover 4, moving contact 5, main static contact 6, auxiliary static contact 7, bellows component 8 and metallic shield 9.Two vacuum extinctions
Room is symmetrical arranged along conductive connection plates.
Each end cover is weldingly fixed in the outlet of a corresponding ceramic shell outer end, and the center of each end cover is equipped with
Centre bore.
Bellows component includes the slip pipe 81 being weldingly fixed in end cover centre bore, is weldingly fixed on moving contact periphery
The bellows 83 of assistant metal pipe 82 and sealed connection slip pipe and assistant metal pipe on wall.Each moving contact is in a corresponding slip pipe
In reciprocatingly slide.
Main static contact includes motion block 61, quiet piece 62, elastic connecting pipe 63 and support spring 64.The main stationary contact of two vacuum interrupters
Head is separately fixed on the tow sides of conductive connection plates, and two ceramic shells, which are also respectively welded, is being fixed on conductive connection plates just
On anti-two sides.
Quiet piece is each attached to elastic connecting pipe on the plate body of the corresponding one end of conductive connection plates, the other end of elastic connecting pipe
It is fixed on the periphery wall of motion block, quiet piece and support spring is sealed in interior vacuum-sealed cavity 65 so as to be enclosed one.Support spring
It is set on quiet piece, one end of support spring is connected in conductive connection plates, and the other end of support spring is connected on motion block.Free state
Under, quiet piece and motion block are strutted to form gap by support spring.Preferable scheme is that:Elastic connecting pipe selects insulation tube to be made.
Auxiliary static contact 7 includes the fixed part 71 being weldingly fixed on ceramic shell wall body and is set in moving contact periphery wall
On ring shaped contact portion 72.
Moving contact 5 include sliding part 51, for be adapted to motion block in main static contact main conductive part 52, for auxiliary it is quiet
The annular auxiliary conducting part 53 of annular contact site adaptation and the auxiliary screen being fixed on annular auxiliary conducting part in contact
Cover cover 54.
Auxiliary shield cover 54 includes being arranged on the first auxiliary shield pipe 541 of ring shaped contact portion inner circumferential side and is arranged on ring
Second auxiliary shield pipe 542 of shape contact site peripheral side, the first auxiliary shield pipe and the second auxiliary shield Guan Jun are fixed at
On the annular auxiliary conducting part of moving contact.
Also embedded with insulation tube 55 on the periphery wall of moving contact, which is located at the inside of the first auxiliary shield pipe.
The fixed part of each auxiliary static contact stretches out a corresponding ceramic shell, can assist static contact by two by conduct piece
The part of ceramic shell and conductive connection plates electrical connection are stretched out, is connected for example, by using annealed copper wire.
In the present embodiment, the fixed part of each auxiliary static contact is an annular slab, and each ceramic shell is divided into inside and outside two
Part, and inside and outside two parts ceramic shell is weldingly fixed on the tow sides of the fixed part of corresponding auxiliary static contact.
In addition, being set in the two lateral walls of each ceramic shell, there are two mounting groove, the mounting groove combinations of two ceramic shells
Form two caulking grooves 31, be fixed in each caulking groove one for be electrically connected two conductions for assisting static contacts and conductive connection plates
Panel 32.
The present embodiment application method is as follows:One moving contact is connected with main power source, another moving contact is connected with auxiliary power,
Conductive connection plates and load connect, and by controlling the action of two moving contacts, realize the switching of dual power supply.
The present embodiment has the following advantages:(1) by the way that two vacuum interrupters are linked into an integrated entity by conductive connection plates,
Double double power source vacuum arc-chutes gone out into one are become, while are compared with existing dual power supply switching mechanism, occupied space is smaller.
(2) the main conductive part of moving contact and main static contact adaptation, the annular auxiliary conducting part of moving contact and auxiliary static contact adaptation, so as to
Binary channel circuit is formed, so as to promote electric conductivity, can be used for extra high voltage line.(3) there is main static contact preferably buffering to imitate
Fruit, anti-impact force performance is good, ensures service life.
The undocumented technology of this specification is known technology, therefore is no longer described in detail.
Claims (5)
1. a kind of dual-power extra-high voltage vacuum interrupter fixes two vacuum including two vacuum interrupters and a connection
The conductive connection plates of arc-chutes;It is characterized in that:
Each vacuum interrupter includes ceramic shell, end cover, moving contact, main static contact, auxiliary static contact, bellows component
And metallic shield;Auxiliary static contact includes the fixed part being weldingly fixed on ceramic shell wall body and is set in moving contact periphery
Ring shaped contact portion on wall;Moving contact includes sliding part, for the main conductive part that is adapted to motion block in main static contact and is used for
The annular auxiliary conducting part being adapted to contact site annular in auxiliary static contact;
The main static contact of two vacuum interrupters is electrically connected respectively with the tow sides of conductive connection plates;
The fixed part of each auxiliary static contact is an annular slab, and each ceramic shell is divided into inside and outside two parts, and this inside and outside two
Part ceramic shell is weldingly fixed on the tow sides of the fixed part of corresponding auxiliary static contact;Each ceramic shell it is opposite
It is set on two side there are two mounting groove, the mounting groove of two ceramic shells is combined to form two caulking grooves, is fixed in each caulking groove
One assists static contacts and the conductive panel of conductive connection plates for being electrically connected two.
2. dual-power extra-high voltage vacuum interrupter according to claim 1, it is characterised in that:Moving contact further includes fixation
The auxiliary shield cover being arranged on annular auxiliary conducting part;Auxiliary shield cover includes being arranged on the first of ring shaped contact portion inner circumferential side
Auxiliary shield pipe and the second auxiliary shield pipe for being arranged on ring shaped contact portion peripheral side, the first auxiliary shield pipe and the second auxiliary
Shielded-plate tube is fixed on the annular auxiliary conducting part of moving contact.
3. dual-power extra-high voltage vacuum interrupter according to claim 2, it is characterised in that:Main static contact includes dynamic
Block, quiet piece, elastic connecting pipe and support spring;Quiet piece is each attached to elastic connecting pipe on the plate body of the corresponding one end of conductive connection plates,
The other end of elastic connecting pipe is fixed on the periphery wall of motion block, so as to be enclosed one by quiet piece and support spring be sealed in
Vacuum-sealed cavity;Support spring is set on quiet piece, and one end of support spring is connected in conductive connection plates, and the other end of support spring is connected to dynamic
On block;Under free state, quiet piece and motion block are strutted to form gap by support spring.
4. dual-power extra-high voltage vacuum interrupter according to claim 3, it is characterised in that:Each end cover welding is solid
It is scheduled in the outlet of a corresponding ceramic shell outer end, the center of each end cover is equipped with centre bore;Bellows component includes weldering
The assistant metal pipe for connect the slip pipe being fixed in end cover centre bore, being weldingly fixed on moving contact periphery wall and sealed connection
The bellows of slip pipe and assistant metal pipe;Each moving contact reciprocatingly slides in a corresponding slip pipe.
5. dual-power extra-high voltage vacuum interrupter according to claim 4, it is characterised in that:On the periphery wall of moving contact
Also embedded with insulation tube, which is located at the inside of the first auxiliary shield pipe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711462758.7A CN108172458A (en) | 2017-12-28 | 2017-12-28 | A kind of dual-power extra-high voltage vacuum interrupter |
Applications Claiming Priority (1)
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CN201711462758.7A CN108172458A (en) | 2017-12-28 | 2017-12-28 | A kind of dual-power extra-high voltage vacuum interrupter |
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CN108172458A true CN108172458A (en) | 2018-06-15 |
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CN201711462758.7A Withdrawn CN108172458A (en) | 2017-12-28 | 2017-12-28 | A kind of dual-power extra-high voltage vacuum interrupter |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112582203A (en) * | 2020-11-24 | 2021-03-30 | 平高集团有限公司 | Multifunctional solid-sealed polar pole |
Citations (6)
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WO2009138394A1 (en) * | 2008-05-13 | 2009-11-19 | Siemens Aktiengesellschaft | Vacuum circuit interrupter |
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 |
EP2549503A1 (en) * | 2011-07-19 | 2013-01-23 | ABB Technology AG | Vacuum interrupter with integrated double gap and single drive |
CN203588921U (en) * | 2013-11-28 | 2014-05-07 | 景德镇万鹏电子有限公司 | Rapid less-bounce vacuum arc-extinguishing chamber |
CN207852570U (en) * | 2017-12-28 | 2018-09-11 | 苏州新能电力建设工程有限公司 | A kind of dual-power extra-high voltage vacuum interrupter |
-
2017
- 2017-12-28 CN CN201711462758.7A patent/CN108172458A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009138394A1 (en) * | 2008-05-13 | 2009-11-19 | Siemens Aktiengesellschaft | Vacuum circuit interrupter |
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 |
EP2549503A1 (en) * | 2011-07-19 | 2013-01-23 | ABB Technology AG | Vacuum interrupter with integrated double gap and single drive |
CN203588921U (en) * | 2013-11-28 | 2014-05-07 | 景德镇万鹏电子有限公司 | Rapid less-bounce vacuum arc-extinguishing chamber |
CN207852570U (en) * | 2017-12-28 | 2018-09-11 | 苏州新能电力建设工程有限公司 | A kind of dual-power extra-high voltage vacuum interrupter |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112582203A (en) * | 2020-11-24 | 2021-03-30 | 平高集团有限公司 | Multifunctional solid-sealed polar pole |
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PB01 | Publication | ||
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Application publication date: 20180615 |