CN201084635Y - A large-capacity vacuum load switch - Google Patents
A large-capacity vacuum load switch Download PDFInfo
- Publication number
- CN201084635Y CN201084635Y CNU2007200136952U CN200720013695U CN201084635Y CN 201084635 Y CN201084635 Y CN 201084635Y CN U2007200136952 U CNU2007200136952 U CN U2007200136952U CN 200720013695 U CN200720013695 U CN 200720013695U CN 201084635 Y CN201084635 Y CN 201084635Y
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- contact
- moving
- conductive rod
- main
- static
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Abstract
The utility model relates to a high-capacity vacuum load switch, comprising a moving contact, a static contact, a main shielding cover, an upper conductive rod, a lower conductive rod and a ceramic case, wherein, the moving contact comprises a moving main contact and a moving arc contact; the static contact comprises a main static contact and a static arc contact; the static arc contact are arranged at the lower end of the upper moving conductive rod; the upper moving conductive rod is arranged on an upper guide sleeve; the moving main contact is arranged at the upper end of the lower moving conductive rod; the lower moving conductive rod is arranged movably on the upper guide sleeve; the moving arc contact is arranged on the moving main contact. The utility model has the advantages that on the basis of the double bellows, the bearing of big rated current and the on-off of the big short-circuit current are completed via two pairs of independent main contacts and arc contacts with the parallel transfer principle; therefore, practically, the single vacuum interrupter with the abilities of bearing big rated current and switching on and off big short-circuit current is realized.
Description
Technical field
The utility model relates to a kind of on-load switch that is used in electric power output and the transmission system, is a kind of high capacity vacuum load switch specifically.
Background technology
In common on-load switch vacuum interrupter, be provided with a moving contact and a fixed contact.Cut-off and the rated current of short circuit current are carried by finishing with a pair of contact.The drawback of the vacuum interrupter maximum of this prototype structure is to satisfy to be difficult to have simultaneously the long-term through-current capability of big rated current under the prerequisite that big short circuit current cut-offs in the single vacuum arc control device.
The utility model content
The purpose of this utility model provides a kind of novel vacuum interrupter, and it can overcome existing shortcoming in the prior art, the ability that makes single arc control device have the big rated current of carrying simultaneously and cut-off big short circuit current.
The purpose of this utility model is achieved in that it comprises dynamic and static contact, main shield cover, upper and lower moving conductive rod, ceramic package, it is characterized in that: moving contact is made up of moving main contact, moving arcing contact, fixed contact is made up of quiet main contact, quiet arc contact, the quiet arc sets of contacts is contained on the moving conductive rod, and last moving conductive rod activity is assembled on the fairlead; Moving main contact is arranged on down the upper end of moving conductive rod, and following moving conductive rod activity is assembled in down on the fairlead, and moving arcing contact is assembled on the moving main contact.
Above-mentioned upper and lower moving conductive rod periphery is provided with bellows and bellows shield cover respectively.
The utility model has the advantages that: on the bi-bellow basis, utilize principle of transfer in parallel, big specified current load and big cut-offfing respectively of short circuit current are finished by two pairs of relatively independent main contacts and arcing contact, realized the ability that the single vacuum arc control device have the big rated current of carrying simultaneously and cut-off big short circuit current by as above designing from practical significance.
Description of drawings
Fig. 1 is the structural representation of the utility model at gate-dividing state.
Fig. 2 is the structural representation of the utility model in "on" position.
Embodiment
See Fig. 1,2, concrete structure of the present utility model is as follows: moving contact is made up of moving main contact 13, moving arcing contact 14, and fixed contact is made up of quiet main contact 3, quiet arc contact 15.Quiet arc contact 15 is assembled in the lower end of moving conductive rod 1, and last moving conductive rod 1 activity is assembled on the fairlead 2, in last moving conductive rod 1 periphery bellows 16 and bellows shield cover 17 and quiet main contact 3 is set; Moving main contact 13 is connected in down the upper end of moving conductive rod 11, and following moving conductive rod 11 activities are assembled in down on the fairlead 10, and moving arcing contact 14 is assembled on the moving main contact 13.In following moving conductive rod 11 peripheries bellows 7 and bellows shield cover 8 are set.Dynamic and static arcing contact 14 and 15 vertical each other mutually magnetic field structure of contact terminals, dynamic and static main contact 13 and 3 is used for carrying big rated current, adopts the good fine copper of electric conductivity as contact material.Dynamic and static arcing contact 14 and 15 is used for cut-offfing big short circuit current, and its contact material is a chromiumcopper.Periphery at switch is assembled ceramic packages 5 by the metal sealing ring 4,9 at two ends, and main shield cover 6 is set in ceramic package 5, constitutes vacuum interrupter.One end of following moving conductive rod 11 is connected with operating mechanism by insulated tension pole, and last moving conductive rod 1 end is connected to the energy-stored spring (not shown) after by insulated tension pole.
Operation principle: vacuum interrupter of the present utility model is when closing a floodgate, following moving conductive rod 11, moving main contact 13 and moving arcing contact 14 move upward to position A under operating mechanism drives after, moving arcing contact 14 is in contact with one another move upward (the also not contact of dynamic and static main contact this moment) with quiet arc contact 15, and the energy-stored spring energy storage of giving last moving conductive rod 1 end.After dynamic and static arcing contact moves to position B, dynamic and static main contact 13,3 begins contact, and it is reliable closed under the effect of contact pressure, this moment, most of electric current was transferred on dynamic and static main contact 13 and 3 by dynamic and static arcing contact 14 and 15, promptly finished big current load task by dynamic and static main contact 13,3.Dynamic and static arcing contact 14,15 contact earlier at position A place when closing a floodgate is satisfied in upper and lower contact motion, and after continuing together afterwards to move upward to position B, dynamic and static main contact begins contact.Because the main contact electric conductivity is more far better than arcing contact, thus main, arcing contact all reliably the most of current transfer in contact back promptly carry big rated current to main contact by main contact; During separating brake, following moving conductive rod 11 and moving main contact 13 and moving arcing contact 14 begin to do the separating brake motion downwards from position B under spring operating mechanism drives, the energy-stored spring energy of last moving conductive rod 1 end discharges, moving conductive rod 1 and quiet arc contact 15 are moved downward together with moving arcing contact 14, this moment, dynamic and static arcing contact 14,15 still was in conducting state, and dynamic and static main contact 13,3 has separated fully.When the energy of energy-stored spring is 0 (promptly getting back to position A again), quiet arc contact 15 transfixions.And following moving conductive rod 11 and moving arcing contact 14 and moving main contact 13 continue to move downward.At this moment, dynamic and static arcing contact begins to separate, and opens in scope whole, and electric arc burns on dynamic and static arcing contact.This moment, electric arc was extinguished easily owing to the existence in magnetic field.Because main contact separates earlier during separating brake, this moment, arcing contact still was in contact condition, and arcing contact just began to separate after main contact separated certain distance, and then the task of cut-offfing of short circuit current is finished by arcing contact.Arcing contact adopts vertical magnetic structure to increase the control action of magnetic field to electric arc, improves the break performance of whole vacuum interrupter greatly.
Claims (2)
1. high capacity vacuum load switch, it comprises dynamic and static contact, main shield cover, upper and lower conducting rod, ceramic package, it is characterized in that: moving contact is made up of moving main contact, moving arcing contact, fixed contact is made up of quiet main contact, quiet arc contact, the quiet arc sets of contacts is contained in the moving conductive rod lower end, and last moving conductive rod activity is assembled on the fairlead; Moving main contact is arranged on down the upper end of moving conductive rod, and following moving conductive rod activity is assembled on the fairlead, and moving arcing contact is assembled on the moving main contact.
2. high capacity vacuum load switch according to claim 1 is characterized in that: upper and lower moving conductive rod periphery is provided with bellows and bellows shield cover respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200136952U CN201084635Y (en) | 2007-08-07 | 2007-08-07 | A large-capacity vacuum load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200136952U CN201084635Y (en) | 2007-08-07 | 2007-08-07 | A large-capacity vacuum load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201084635Y true CN201084635Y (en) | 2008-07-09 |
Family
ID=39627107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200136952U Expired - Fee Related CN201084635Y (en) | 2007-08-07 | 2007-08-07 | A large-capacity vacuum load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201084635Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290284A (en) * | 2011-08-04 | 2011-12-21 | 江苏维爱斯电器有限公司 | Novel vacuum switch tube |
| CN102543608A (en) * | 2010-11-17 | 2012-07-04 | Ls产电株式会社 | Contact apparatus for circuit breaker |
| CN103367024A (en) * | 2013-06-17 | 2013-10-23 | 北海银河产业投资股份有限公司 | Double contact of vacuum arc extinguishing chamber |
| CN104064398A (en) * | 2014-07-01 | 2014-09-24 | 王永法 | Contact of vacuum arc extinguishing chamber |
| CN108493037A (en) * | 2018-03-02 | 2018-09-04 | 西安交通大学 | A kind of double acting conducting rod and bi-bellow structure for vacuum arc-chutes and working method |
| WO2020151464A1 (en) * | 2019-01-21 | 2020-07-30 | 国家电网有限公司 | Vacuum arc extinguishing chamber and vacuum circuit breaker |
| CN113161193A (en) * | 2020-11-27 | 2021-07-23 | 平高集团有限公司 | Vacuum circuit breaker and vacuum arc-extinguishing chamber |
-
2007
- 2007-08-07 CN CNU2007200136952U patent/CN201084635Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543608A (en) * | 2010-11-17 | 2012-07-04 | Ls产电株式会社 | Contact apparatus for circuit breaker |
| CN102543608B (en) * | 2010-11-17 | 2014-09-03 | Ls产电株式会社 | Contact apparatus for circuit breaker |
| CN102290284A (en) * | 2011-08-04 | 2011-12-21 | 江苏维爱斯电器有限公司 | Novel vacuum switch tube |
| CN103367024A (en) * | 2013-06-17 | 2013-10-23 | 北海银河产业投资股份有限公司 | Double contact of vacuum arc extinguishing chamber |
| CN103367024B (en) * | 2013-06-17 | 2016-03-30 | 北海银河产业投资股份有限公司 | The two contact of vacuum interrupter |
| CN104064398A (en) * | 2014-07-01 | 2014-09-24 | 王永法 | Contact of vacuum arc extinguishing chamber |
| CN108493037A (en) * | 2018-03-02 | 2018-09-04 | 西安交通大学 | A kind of double acting conducting rod and bi-bellow structure for vacuum arc-chutes and working method |
| WO2020151464A1 (en) * | 2019-01-21 | 2020-07-30 | 国家电网有限公司 | Vacuum arc extinguishing chamber and vacuum circuit breaker |
| CN113161193A (en) * | 2020-11-27 | 2021-07-23 | 平高集团有限公司 | Vacuum circuit breaker and vacuum arc-extinguishing chamber |
| CN113161193B (en) * | 2020-11-27 | 2022-08-30 | 平高集团有限公司 | Vacuum circuit breaker and vacuum arc extinguish chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20100807 |