CN108320989A - A kind of vacuum interrupter promoting weld strength - Google Patents
A kind of vacuum interrupter promoting weld strength Download PDFInfo
- Publication number
- CN108320989A CN108320989A CN201711465240.9A CN201711465240A CN108320989A CN 108320989 A CN108320989 A CN 108320989A CN 201711465240 A CN201711465240 A CN 201711465240A CN 108320989 A CN108320989 A CN 108320989A
- Authority
- CN
- China
- Prior art keywords
- metal
- weldingly fixed
- metal cover
- ceramic shell
- fixed
- Prior art date
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- 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
-
- 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
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
- H01H2033/66215—Details relating to the soldering or brazing of vacuum switch housings
Abstract
The invention discloses a kind of vacuum interrupters promoting weld strength, including form ceramic shell, metal end, moving contact, static contact, bellows part and the metallic shield of accommodating cavity；Metal end includes the moved end end cap being adapted to moving contact and the static side end cap being adapted to static contact；Moved end end cap includes the first metal cover being weldingly fixed on ceramic shell and the second metal cover being weldingly fixed on the first metal cover；The inner wall at ceramic shell both ends is equipped with welding groove, and the first metal cover includes the tubular weldment fixed part being weldingly fixed on the internal perisporium of a corresponding welding groove, the welded connection being connected is welded and fixed with the second metal cover and welded seal portion that bellows part one end is weldingly connected and centre bore；The other end of bellows part is weldingly fixed on assistant metal sealing element, which is weldingly fixed on the periphery wall of moving contact.The welding structure that the present invention passes through improvement metal end and ceramic shell so that weld strength is higher, and shock resistance is good, is hardly damaged.
Description
Technical field
The invention belongs to power switchgear technical fields, and in particular to a kind of vacuum interrupter promoting weld strength.
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, the flange welding of bellows and moving contact and sealing container ensure
When moving contact axially moves, the vacuum degree in container is unaffected.Vacuum interrupter has strong breaking capacity, electric arc 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.
The moving contact of vacuum interrupter is when carrying out feed motion, quick action, impacts great efforts, vibrations are big, are to make
The principal element damaged at vacuum interrupter.
Invention content
The object of the present invention is to provide a kind of promotion weld strengths, and shock resistance is good, non-damageable vacuum interrupter.
Realizing the technical solution of the object of the invention is：A kind of vacuum interrupter promoting weld strength, including formed accommodating
Ceramic shell, metal end, moving contact, static contact, bellows part and the metallic shield of chamber；Metal end includes and moving contact
The moved end end cap of adaptation and the static side end cap being adapted to static contact；Moved end end cap includes be weldingly fixed on ceramic shell
One metal cover and the second metal cover being weldingly fixed on the first metal cover；The inner wall at ceramic shell both ends is equipped with welding groove,
First metal cover includes the tubular weldment fixed part being weldingly fixed on the internal perisporium of a corresponding welding groove and the second metal cover
It is welded and fixed connected welded connection, the welded seal portion being weldingly connected with bellows part one end and centre bore；Bellows
The other end of part is weldingly fixed on assistant metal sealing element, which is weldingly fixed on the periphery wall of moving contact
On.
Said program is further preferably：Static side end cap include the tubular seals portion that is weldingly fixed on ceramic shell and
Center through hole, tubular seals portion are weldingly fixed on the internal perisporium of a corresponding welding groove, and center through hole is weldingly fixed on stationary contact
On the periphery wall of head.
Said program is further preferably：The center of second metal cover is equipped with slide opening, and moving contact is back and forth slided along the slide opening
It is dynamic.
Said program is further preferably：Static side end cap is weldingly fixed on ceramic shell and static contact periphery wall
Metallic sealed cover.
The present invention has the following advantages：By the welding structure for improving metal end and ceramic shell so that weld strength
Higher, shock resistance is good, is hardly damaged.
Description of the drawings
Fig. 1 is a kind of half section structure diagram of the first structure of the invention；
Fig. 2 is a kind of half section structure diagram of second of structure of the invention.
Being marked shown in attached drawing is：
Ceramic shell 1, welding groove 11, metal end 2, moved end end cap 21, the first metal cover 211, tubular weldment fixed part
2111, welded connection 2112, welded seal portion 2113, centre bore 2114, the second metal cover 212, static side end cap 22, tubulose is close
Envelope portion 221, center through hole 222, moving contact 3, static contact 4, motion block 41, quiet piece 42, conductive column 421, elastic connecting pipe 43, support spring
44, bellows part 5, metallic shield 6, assistant metal sealing element 7, vacuum-sealed cavity 8.
Specific implementation mode
(embodiment 1)
The present embodiment is a kind of vacuum interrupter promoting weld strength, as shown in Figure 1, including forms the ceramics of accommodating cavity
Shell 1, metal end 2, moving contact 3, static contact 4, bellows part 5 and metallic shield 6.
Metal end is for blocking ceramic shell both ends open；Metal end includes the moved end end cap 21 being adapted to moving contact
And the static side end cap 22 being adapted to static contact.
Moved end end cap includes the first metal cover 211 being weldingly fixed on ceramic shell and is weldingly fixed on the first metal cover
On the second metal cover 212.
The inner wall at ceramic shell both ends is equipped with welding groove 11, and the first metal cover includes being weldingly fixed on a corresponding welding
Tubular weldment fixed part 2111 on the internal perisporium of slot, be welded and fixed with the second metal cover the welded connection 2112 being connected, with
The welded seal portion 2113 and centre bore 2114 that bellows part one end is weldingly connected；The other end of bellows part is weldingly fixed on
On assistant metal sealing element 7, which is weldingly fixed on the periphery wall of moving contact.
The center of second metal cover is equipped with slide opening, and moving contact reciprocatingly slides along the slide opening.
Static side end cap is the metallic sealed cover being weldingly fixed on ceramic shell and static contact periphery wall, and static side end cap includes
The tubular seals portion 221 being weldingly fixed on ceramic shell and center through hole 222, tubular seals portion are weldingly fixed on corresponding one
On the internal perisporium of welding groove, center through hole is weldingly fixed on the periphery wall of static contact.
The present embodiment pass through improve metal end and ceramic shell welding structure so that the present embodiment weld strength compared with
Height, shock resistance is good, is hardly damaged.
(embodiment 2)
The present embodiment and embodiment 1 are essentially identical, the difference is that：As shown in Figure 2, static contact 4 includes motion block 41, quiet
Block 42, elastic connecting pipe 43 and support spring 44.
The center through hole of static side end cap is weldingly fixed on quiet piece of periphery wall, and one end of elastic connecting pipe is weldingly fixed on
On the inner wall of static side end cap, the other end is weldingly fixed on the periphery wall of motion block, to be enclosed a vacuum-sealed cavity 8.
Preferable scheme is that：Elastic connecting pipe selects insulation tube to be made.
The conductive column 421 of protrusion is equipped at quiet piece of center, support spring is set on conductive column, and one end of support spring is connected to quiet
On block, the other end of support spring is connected on motion block.Under free state, support spring struts quiet piece and motion block to form gap.Conductive column,
Support spring is respectively positioned in the vacuum-sealed cavity.
The present embodiment by static contact by being designed as having the motion block and quiet piece that support spring supports, in feed motion,
With preferable buffering effect, it is conducive to extend service life.
The undocumented technology of this specification is known technology, therefore is no longer described in detail.
Claims (4)
1. a kind of vacuum interrupter promoting weld strength, including formed the ceramic shell of accommodating cavity, metal end, moving contact,
Static contact, bellows part and metallic shield；Metal end includes the moved end end cap being adapted to moving contact and is fitted with static contact
The static side end cap matched；It is characterized in that：Moved end end cap includes that the first metal cover being weldingly fixed on ceramic shell and welding are solid
The second metal cover being scheduled on the first metal cover；
The inner wall at ceramic shell both ends is equipped with welding groove, and the first metal cover includes be weldingly fixed on a corresponding welding groove interior
Tubular weldment fixed part on peripheral wall is welded and fixed the welded connection being connected with the second metal cover, is welded with bellows part one end
Connect connected welded seal portion and centre bore；The other end of bellows part is weldingly fixed on assistant metal sealing element, this is auxiliary
Aided metal sealing element is weldingly fixed on the periphery wall of moving contact.
2. the vacuum interrupter according to claim 1 for promoting weld strength, it is characterised in that：Static side end cap includes welding
Tubular seals portion and the center through hole being fixed on ceramic shell, tubular seals portion are weldingly fixed on the interior of a corresponding welding groove
On peripheral wall, center through hole is weldingly fixed on the periphery wall of static contact.
3. the vacuum interrupter according to claim 1 for promoting weld strength, it is characterised in that：The center of second metal cover
Equipped with slide opening, moving contact reciprocatingly slides along the slide opening.
4. the vacuum interrupter according to claim 1 for promoting weld strength, it is characterised in that：Static side end cap is that welding is solid
The metallic sealed cover being scheduled on ceramic shell and static contact periphery wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711465240.9A CN108320989A (en) | 2017-12-28 | 2017-12-28 | A kind of vacuum interrupter promoting weld strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711465240.9A CN108320989A (en) | 2017-12-28 | 2017-12-28 | A kind of vacuum interrupter promoting weld strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108320989A true CN108320989A (en) | 2018-07-24 |
Family
ID=62892696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711465240.9A Withdrawn CN108320989A (en) | 2017-12-28 | 2017-12-28 | A kind of vacuum interrupter promoting weld strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108320989A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111916303A (en) * | 2020-09-04 | 2020-11-10 | 浙江瑞光真空电气有限公司 | Vacuum switch tube for circuit breaker and manufacturing method of shell of vacuum switch tube |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4933518A (en) * | 1988-10-03 | 1990-06-12 | Square D Company | Vacuum 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 |
| CN202905584U (en) * | 2012-11-16 | 2013-04-24 | 锦州华光玻璃开关管有限公司 | Anti-breakdown ceramic vacuum switch tube |
| CN207966844U (en) * | 2017-12-28 | 2018-10-12 | 毛红玲 | A kind of vacuum interrupter promoting weld strength |
-
2017
- 2017-12-28 CN CN201711465240.9A patent/CN108320989A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4933518A (en) * | 1988-10-03 | 1990-06-12 | Square D Company | Vacuum 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 |
| CN202905584U (en) * | 2012-11-16 | 2013-04-24 | 锦州华光玻璃开关管有限公司 | Anti-breakdown ceramic vacuum switch tube |
| CN207966844U (en) * | 2017-12-28 | 2018-10-12 | 毛红玲 | A kind of vacuum interrupter promoting weld strength |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111916303A (en) * | 2020-09-04 | 2020-11-10 | 浙江瑞光真空电气有限公司 | Vacuum switch tube for circuit breaker and manufacturing method of shell of vacuum switch tube |
| WO2022048322A1 (en) * | 2020-09-04 | 2022-03-10 | 天津首瑞智能电气有限公司 | Vacuum switch tube for circuit breaker and method for manufacturing outer casing thereof |
| CN114342030A (en) * | 2020-09-04 | 2022-04-12 | 天津首瑞智能电气有限公司 | Vacuum switch tube for circuit breaker and manufacturing method of shell of vacuum switch tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180724 |
|
| WW01 | Invention patent application withdrawn after publication |