CN103329235B - For the contact maker plug-in unit of electric circuit breaker apparatus - Google Patents
For the contact maker plug-in unit of electric circuit breaker apparatus Download PDFInfo
- Publication number
- CN103329235B CN103329235B CN201180065931.4A CN201180065931A CN103329235B CN 103329235 B CN103329235 B CN 103329235B CN 201180065931 A CN201180065931 A CN 201180065931A CN 103329235 B CN103329235 B CN 103329235B
- Authority
- CN
- China
- Prior art keywords
- contact maker
- insulating element
- radome
- plug
- unit
- 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.)
- Expired - Fee Related
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
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
-
- 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
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
- H01H2033/66269—Details relating to the materials used for screens in vacuum switches
-
- 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
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
- H01H2033/66276—Details relating to the mounting of screens in vacuum switches
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Breakers (AREA)
Abstract
A kind of contact maker plug-in unit for electric circuit breaker apparatus, comprise cylindrical insulating element (1), coaxially arranged in described insulating element have a pair corresponding electrical contact part (3a, 3b), described electrical contact part is surrounded with one heart by radome (6), described radome is positioned at the described contact members (3a of side, 3b) and between the inwall (7) of the insulating element of opposite side (1), wherein there is the annular gap (8a formed with described inwall (7) on two front ends of described radome (6), 8b), each annular gap (8a, 8b) be filled with brazing material (9) at least partly, with by be soldered to inner orientation metal layer or directly active soldering to the inwall (7) by ceramic main body, described radome (6) being permanently attached on two front ends insulating element (1).
Description
Technical field
The present invention relates to a kind of contact maker plug-in unit of the electric circuit breaker apparatus for comprising cylindrical insulation division, coaxially arranged in described insulating element have a pair corresponding electrical contact part, described electrical contact part is surrounded with one heart by radome, described radome is between contact members and the inwall of insulating element, wherein said contact members is positioned at the side of described radome, the inwall of insulating element is positioned at the opposite side of described radome, and forms annular gap between two front ends of described radome and described inwall.
Such circuit-breaker is widely used, and the scope that is used in particular for presses application scenario in the high current class of 1 to 72kv.These circuit breakers carry out interruptive current by generation and extinguish arcs in vacuum tank.Modern vacuum circuit-breaker trends towards having and breaks device longer life expectancy than conventional air circuit.But the present invention not only can be applicable to vacuum circuit breaker, and for air circuit breaker or modern times (SF6) circuit-breaker with the chamber being filled with sulfur hexafluoride gas.
Background technology
WO2006/002560A1 discloses a kind of electric circuit breaker apparatus with vacuum interrupter chamber, and this chamber has insulating ceramics wall.A pair electrical contact is arranged coaxially in interrupter chambers chamber interior.One of two electrical contacts are moveable to form electric switch.Electrical contact is arranged in vacuum and the switching manipulation of itself occurs at vacuum atmosphere.During switching process, particularly under short circuit condition, target extinguishes the electric arc of generation as quickly as possible.Described electric arc is the high-energy plasma stream producing evaporation process in vacuum circuit-breaker chamber.In order to not form metal level in the inner side of the ceramic wall material of contact maker chamber after a large amount of switching manipulation, and therefore not reducing the insulating capacity of this unit, the shield member be made up of metal material with relative thin-walled is usually introduced into vacuum interrupter chamber indoor and is disposed near the arc gap between electrical contact and insulating element.
The evaporation of metal that the flowing brought by switching manipulation is left is condensate on the surface of these shielding parts.And, similarly from other high-energy plasma jet also conductively-closed part collecting of voltage contact area.As a result, the voltage isolation features of the ceramic sleeve of vacuum interrupter chamber interior is maintained.
DE102004006609A1 discloses a kind of metallic shield of the contact maker chamber for medium-pressure or high pressure circuit-breaker.This metallic shield is by comprising the alloy composition of copper and chromium and/or zirconium composition to increase the durability shielded.Metallic shield is columniform substantially, and has barrel-shaped form.Boundary Loop on every side of radome by being bent to form to realize enough function of shielding.
In order to the adequate shielding design on floating potential, need to be attached to the Outer cylindrical insulating element formed primarily of ceramic material.Usually, use two ceramic components, this ceramic component is brazed from shield member to edge between ceramic surface.This radome also can be soldered to the interior step in metallized ceramic region.Metallization must be produced in this case on described interior step.But this generation technology needs to manufacture generation by hand.More effective known solution, based on the groove of pottery inside, conforms to the implement handle of this groove inside, radome is fixed to this determine position.
The object of the invention is to provide radome on the floating potential of the insulating element inside of contact maker plug-in unit, it is reliably attached to the inwall of insulating element, is suitable for automatic production.
Summary of the invention
According to the present invention, a kind of contact maker plug-in unit for electric circuit breaker apparatus is provided, comprise cylindrical insulating element, with inner shield between contact members and the inwall of described insulating element, two of wherein said radome are formed with annular gap between front end and inwall, wherein each annular gap is filled with brazing material at least partly, to be permanently attached to by radome by active soldering on two front ends of the inwall of insulating element.And in ceramic wall being formed in restriction, metal layer is to provide a region, and in this region, standard brazing material closes the gap between pottery and radome.
Additional resolution of the present invention does not need form adapting device to be fixed in insulating element for by the radome of cylindrical form.And the gap between cylindrical shield cover and the inwall of insulating element is sealed wholly or in part, because braze avoids steam or granule to enter this small―gap suture region.The present invention allows radome to be positioned at insulating element inside, to be brazed together each other by two parts in automatic production stage.
In order to be held in place by brazing material in automatic brazing production stage, other soldering or active brazing alloy can be used.Described active brazing alloy is preferably placed in annular gap, below brazing material, to avoid the brazing material of melting to enter between the middle part of radome and the inwall of insulating element.Soldering or active brazing alloy can be annular, and are therefore configured with the form with annular gap adaptation.Annular gap has V-shaped section.Alternately, active brazing alloy also can be formed to fill this gap by dusty material or wall shape parts.Preferred active brazing alloy is made up of the alloy material of titanium chromium aluminium, tin oxide, zirconium or complex element and steel alloy.
Except this active brazing alloy, can be become be grouped into by silver-bearing copper according to standard brazing material of the present invention.
According to a further aspect of the invention, the radome of general cylindrical is the form of similar bucket.It corresponds to accurate cylindrical insulating element location.Insulating element and shield member are preferably made up of metal or ceramic material.
Contact maker plug-in unit according to the present invention is specifically designed to vacuum interrupter plug-in unit or protective gas contact maker plug-in unit.But, also solution according to the present invention can be combined with the open insulating element being used for air circuit breaker etc.
When considered in conjunction with the accompanying drawings, aforementioned and other side of the present invention will from following of the present invention retouch in detail state and become obvious.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional drawing of the vacuum interrupter plug-in unit of middle volt circuit circuit breaker;
Fig. 2 is the schematic longitudinal section figure of first embodiment of the invention; With
Fig. 3 is the schematic longitudinal section figure of second embodiment of the invention.
Embodiment
According to Fig. 1, the cylindrical insulating element of vacuum interrupter plug-in unit is closed by cover plate 2a and 2b respectively on two front ends.The vacuum chamber that two coaxially arranged contact members 3a and 3b are disposed in contact maker plug-in unit is inner.The far-end of two electrical contact part 3a and 3b is arranged respectively corresponding switch contact 4a and 4b.
When electric switch inoperation, two switch contacts are positioned at the position of the axial distance that is separated from each other.In order to operate the electric switch formed by two contact members 3a and 3b, contact members 3a axially movably arranges relative to insulating element 1.In order to allow to carry out switching manipulation under vacuum, removable electrical contact 3a is sealed by bellows components 5.Another electrical contact part 3b is rigidly connected to insulating element 1.
Two electrical contact part 3a and 3b are surrounded with one heart by barrel-shaped radome 6.In this cutaway view, radome 6 is disposed between the inwall 7 of the contact members 3a of side and the insulating element 1 of 3b and opposite side.This is specifically arranged and on each front end of radome 6, produces annular gap 8a and 8b respectively.
Be partially filled brazing material 9 according to each annular gap 8a and 8b of the present invention, with metal layer in being provided by ceramic cylinder by active soldering or be soldered to, radome 6 be permanently attached to the insulating element 7 of contact maker plug-in unit.
Reference view 2, except brazing material 9, uses active brazing alloy 10a to be held in place by described brazing material in soldering processes.Described active brazing alloy 10a is disposed in (example) below brazing material 9 in 8a inside, annular gap.In this position, between the middle part that active brazing alloy avoids the brazing material 9 melted to enter barrel-shaped radome 6 and the inwall 7 of insulating element 1.
According to the first shown embodiment, active brazing alloy 10a is ring-type and is configured to the shape with annular gap 8a adaptation, to be supported on the bottom section of annular gap 8a.
According to Fig. 3 that second embodiment of the invention is shown, brazing material 9 and active brazing alloy 10b combine.The concrete active brazing alloy 10b of the second embodiment is made up of the coccoid parts of the bottom section for filling annular gap 8a '.
In example as above, insulating element 1 is made up of ceramic material, and tubbiness radome 6 is made up of the sheet metal bent.Certainly, other combination of materials is also possible, as long as they are suitable for according to soldering of the present invention or active soldering.
Reference numerals list:
1 insulating element
2 cover plates
3 electrical contact parts
4 switch contacts
5 bellows components
6 radomes
7 inwalls
8 annular gaps
9 brazing materials
10 brazing alloys
Claims (11)
1. the contact maker plug-in unit for electric circuit breaker apparatus, comprise cylindrical insulating element (1), coaxially arranged in described insulating element have a pair corresponding electrical contact part (3a, 3b), described electrical contact part is surrounded with one heart by radome (6), described radome is positioned at the described electrical contact part (3a of side, 3b) and between the inwall (7) of the insulating element of opposite side (1), annular gap (8a is formed between two axial ends of wherein said radome (6) and described inwall (7), 8b)
It is characterized in that: each annular gap (8a, 8b) be filled with brazing material (9) at least partly, to be soldered to the metal layer that provided by ceramic main body and described radome (6) to be permanently attached on described two axial ends the inwall (7) of insulating element (1), thus the gap between the inwall (7) of radome (6) and insulating element (1) is sealed wholly or in part.
2. contact maker plug-in unit according to claim 1,
It is characterized in that: except brazing material (9), also use active brazing alloy (10a), brazing material (9) is held in place in soldering processes.
3. contact maker plug-in unit according to claim 2,
It is characterized in that: described active brazing alloy (10a) is positioned at described brazing material (9) below in described annular gap (8a), to avoid the brazing material (9) melted to enter between the middle part of radome (6) and the inwall (7) of insulating element (1).
4. contact maker plug-in unit according to claim 2,
It is characterized in that: active brazing alloy (10a) is ring-type and is configured with the form adaptive with annular gap (8a).
5. contact maker plug-in unit according to claim 2,
It is characterized in that: active brazing alloy (10b) is made up of the dusty material or coccoid parts for filling annular gap (8a ').
6. contact maker plug-in unit according to claim 2,
It is characterized in that: active brazing alloy (10a, 10b) is made up of the alloy material of titanium, chromium, aluminium, tin oxide, zirconium or complex element and steel alloy.
7. contact maker plug-in unit according to claim 1,
It is characterized in that: described brazing material is become to be grouped into by silver-bearing copper.
8. contact maker plug-in unit according to claim 1,
It is characterized in that: the tubbiness radome (6) of cylindrical insulating element (1) inside is made up of metal or ceramic material.
9. contact maker plug-in unit according to claim 1,
It is characterized in that: insulating element (1) is made up of ceramic material.
10. contact maker plug-in unit according to claim 1,
It is characterized in that: contact maker plug-in unit is designed to vacuum interrupter plug-in unit or protective gas contact maker plug-in unit.
Volt circuit circuit breaker in 11. 1 kinds, comprises at least one the contact maker plug-in unit for the corresponding pole parts operated by common electrical magnetic actuator, and described contact maker plug-in unit is contact maker plug-in unit according to any one of claim 1 to 10.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10015934A EP2469562A1 (en) | 2010-12-22 | 2010-12-22 | Interrupter insert for a circuit breaker arrangement |
| EP10015934.2 | 2010-12-22 | ||
| PCT/EP2011/006505 WO2012084246A2 (en) | 2010-12-22 | 2011-12-22 | Interrupter insert for a circuit breaker arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103329235A CN103329235A (en) | 2013-09-25 |
| CN103329235B true CN103329235B (en) | 2016-03-30 |
Family
ID=43919938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180065931.4A Expired - Fee Related CN103329235B (en) | 2010-12-22 | 2011-12-22 | For the contact maker plug-in unit of electric circuit breaker apparatus |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2469562A1 (en) |
| CN (1) | CN103329235B (en) |
| WO (1) | WO2012084246A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013204775A1 (en) * | 2013-03-19 | 2014-09-25 | Siemens Aktiengesellschaft | Method for producing a component of a vacuum interrupter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106540A (en) * | 1985-11-08 | 1987-06-17 | 通用电气公司 | The vacuum circuit-breaker envelope assembly |
| CN1076648A (en) * | 1992-03-25 | 1993-09-29 | 中国科学院金属研究所 | Anti-oxidation active metallic soldering material for welding ceramics |
| EP0740322A2 (en) * | 1995-04-27 | 1996-10-30 | Gec Alsthom Limited | Circuit interrupter arrangement |
| CN1258580A (en) * | 1999-12-27 | 2000-07-05 | 华南理工大学 | Active solder and its preparation |
| US6130594A (en) * | 1996-05-17 | 2000-10-10 | E.I.B. S.A. | Magnetically driven electric switch |
| EP1367039A1 (en) * | 2000-01-26 | 2003-12-03 | Ngk Spark Plug Co., Ltd | Ceramic member for bonding, process for producing the same, vacuum switch and vacuum vessel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6433821A (en) * | 1987-07-29 | 1989-02-03 | Hitachi Ltd | Vacuum circuit breaker |
| JP2001256868A (en) * | 2000-03-10 | 2001-09-21 | Toshiba Fa Syst Eng Corp | Operating apparatus for circuit breaker |
| US6417473B1 (en) * | 2000-07-14 | 2002-07-09 | Eaton Corporation | Method and apparatus for mounting vapor shield in vacuum interrupter and vacuum interrupter incorporating same |
| DE102004006609B4 (en) | 2004-02-11 | 2006-03-16 | Abb Technology Ag | Vacuum switch with shielding |
| WO2006002560A1 (en) | 2004-07-05 | 2006-01-12 | Abb Research Ltd | Vacuum interrupter and contact arrangement for a vacuum interrupter |
-
2010
- 2010-12-22 EP EP10015934A patent/EP2469562A1/en not_active Withdrawn
-
2011
- 2011-12-22 WO PCT/EP2011/006505 patent/WO2012084246A2/en active Application Filing
- 2011-12-22 CN CN201180065931.4A patent/CN103329235B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106540A (en) * | 1985-11-08 | 1987-06-17 | 通用电气公司 | The vacuum circuit-breaker envelope assembly |
| CN1076648A (en) * | 1992-03-25 | 1993-09-29 | 中国科学院金属研究所 | Anti-oxidation active metallic soldering material for welding ceramics |
| EP0740322A2 (en) * | 1995-04-27 | 1996-10-30 | Gec Alsthom Limited | Circuit interrupter arrangement |
| US6130594A (en) * | 1996-05-17 | 2000-10-10 | E.I.B. S.A. | Magnetically driven electric switch |
| CN1258580A (en) * | 1999-12-27 | 2000-07-05 | 华南理工大学 | Active solder and its preparation |
| EP1367039A1 (en) * | 2000-01-26 | 2003-12-03 | Ngk Spark Plug Co., Ltd | Ceramic member for bonding, process for producing the same, vacuum switch and vacuum vessel |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2469562A1 (en) | 2012-06-27 |
| WO2012084246A2 (en) | 2012-06-28 |
| CN103329235A (en) | 2013-09-25 |
| WO2012084246A3 (en) | 2012-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20161222 |