WO2001008186A1 - Kontaktanordnung für eine vakuumschaltröhre - Google Patents
Kontaktanordnung für eine vakuumschaltröhre Download PDFInfo
- Publication number
- WO2001008186A1 WO2001008186A1 PCT/DE2000/002443 DE0002443W WO0108186A1 WO 2001008186 A1 WO2001008186 A1 WO 2001008186A1 DE 0002443 W DE0002443 W DE 0002443W WO 0108186 A1 WO0108186 A1 WO 0108186A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contact
- contact area
- arrangement according
- area
- contact arrangement
- Prior art date
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
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
- H01H33/6642—Contacts; Arc-extinguishing means, e.g. arcing rings having cup-shaped contacts, the cylindrical wall of which being provided with inclined slits to form a coil
-
- 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
- H01H2033/6648—Contacts containing flexible parts, e.g. to improve contact pressure
-
- 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
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
Definitions
- the invention is in the field of electrical components and can be used in the structural design of vacuum interrupters in which at least one of the two contacts has an inner contact area which axially projects beyond an outer contact area serving for arc quenching.
- Vacuum interrupters with contact arrangements of the type mentioned are known.
- the two contacts of which usually only one is axially movable to the other, are equipped with circular or slightly conical contact surfaces which face one another.
- Contacts which are designed as so-called “impeller electrodes” or “spiral contacts”, have an inner contact area intended for switching operating currents and an outer contact area concentrically surrounding the inner contact area, intended for switching off short-circuit currents and as a running surface for a rotating arc serving contact area.
- the inner contact area projects beyond the outer contact area by a certain, not very large amount (US 3,158,719 A, US 3,809,836 A).
- Vacuum interrupters are also known in which the contact area provided for switching operating currents is identical to the contact area provided for switching off short-circuit currents.
- These contacts are pot-shaped, the wall of the pot and possibly also the contact ring applied to the pot rim being provided with a plurality of slots which are oblique to the longitudinal axis of the Contact arrangement run. Through these slots the
- Contact area can be divided into several contact sub-areas
- the contact force to be applied permanently mechanically is still relatively large and can be several kN per switching pole, in particular at high currents of more than 50 kA. This requires a correspondingly high mechanical outlay in the switching device.
- the invention is therefore based on the object of designing the contact arrangement in such a way that the mechanical contact point is distributed over a plurality of separate individual contacts with a defined spring constant and that nevertheless the rotation of an arc is possible.
- the inner contact area consists of a plurality of contact partial areas arranged next to one another on a pitch circle, each contact partial area being formed by the free end of a resilient contact tongue inclined against the axis of the contact arrangement ,
- Such a configuration of the contact arrangement makes it possible to divide the contact area provided for switching operating currents into a larger number of about three to ten partial areas, to form these partial areas as resilient contact tongues, each of which is opposed by a mating contact piece, and the contact tongues by appropriate dimensioning of the spring constant to be decoupled mechanically from one another to the extent that in the closed state of the contact arrangement all subregions experience an equally large contact pressure force.
- the resilient contact tongues can be arranged so that when opening and closing the contact System a rubbing movement and thus an abrasion in the form of metallic chips is avoided.
- the contact tongues can be machined out of a flat, conical shell by axially slitting the shell wall several times.
- the spring constant can be varied in particular by the thickness of the shell wall and the number of slots or the width of the contact tongues. Similar conditions exist when the contact tongues are worked out of a flat, hollow truncated cone by multiple axially running slits in the cone shell.
- the contact tongues can also be machined out of a piece of pipe by providing the wall with several obliquely running slots.
- the constructive design of the contact tongues described can be used both with spiral contacts and with pot contacts.
- the body used for the contact tongues can consist of dispersion-hardened copper, a special copper alloy or a copper-chrome material with a small chromium content. It is manufactured separately and arranged in the middle of the respective contact in a corresponding recess and soldered to the rest of the contact body.
- FIGS. 1 to 7 Several exemplary embodiments of contact arrangements designed according to the invention are shown in FIGS. 1 to 7. It shows 1 shows a first exemplary embodiment of a contact arrangement in which the inner contact region is formed by a shell-shaped contact body, FIG. 2 shows a top view of a contact arrangement according to FIG. 1, FIG. 3 shows a second exemplary embodiment of a contact arrangement with an inner contact region designed as a hollow truncated cone, FIG third exemplary embodiment with an inner contact area designed as a slotted tube piece, FIG. 5 a schematic representation of the inner one
- Figures 6 and 7 a fourth embodiment with an inner contact area also formed as a slotted tube piece.
- the contact arrangement according to FIG. 1 consists of an upper contact 1 and a lower contact 2, which are axially assigned to one another along an axis A with mutually facing contact surfaces.
- One contact is axially movable in a manner which is not shown but is known.
- Each of the two contacts 1 and 2 is provided with a power supply 3 and 4, respectively.
- each contact is designed as a so-called “spiral contact” according to European Patent 0 -332 513 B1, each slot 5 consisting of two sections, the first section of which is parallel to a tangent placed on the circumference of a circular recess 6 runs and of which the second section consists of a bore, those in the area of the inner end of the first section
- the area of the contact lying outside the recess 6 forms an outer contact area 7 which is provided for switching off short-circuit currents and serves as a running surface for a rotating arc.
- the recess 6 is made so deep that it can accommodate an additional contact body 8, which forms an inner contact area 9.
- This inner contact area 9, which is provided for switching operating currents, projects axially beyond the outer contact area 7, which is arranged concentrically to the inner contact area, by a certain length a, which is, for example, 2 mm.
- the contact body 8 has the shape of a flat, conical shell, the shell wall of which is slit several times in the axial direction. A plurality of contact subregions 10 are formed through this slit 12.
- the bottom of the cup-shaped contact body 8, which is soldered to the contact piece 1 or 2, is not slotted, so that a plurality of resilient contact tongues 11 inclined against the axis A of the contact arrangement are formed by the slit, the free end of which in each case forms a contact partial area 10.
- the contact body 13 forming the inner contact region is designed as a flat, hollow truncated cone, the jacket of which is axially slit several times.
- this slot does not go to the base of the truncated cone in order to be able to solder the contact body as a whole to the respective contact piece.
- a hollow cylinder in the form of a tube piece 14 is used in the recess 6 of the contacts 1 and 2 as the contact body for the inner contact area, which is provided according to FIG. 5 with slots 15 which run obliquely to the axis of the contact arrangement, as a result of which resilient contact tongues 16 are formed.
- a contact piece 17 is additionally arranged within the tube piece 14, which forms a mechanical support in the closed state of the contacts 1 and 2. In the case of operating currents, this contact piece also carries the current, as a result of which the lowest contact resistances can be achieved. In the case of short-circuit currents, when the additional contact piece 17 begins to be lifted, ie when the contact resistance rises slightly, the resilient contact areas of the tubular contact body 14 carry the current and thus prevent the contact system from being completely lifted and welded.
- the exemplary embodiment according to FIGS. 6 and 7 shows a pot contact 18, the slotted wall of which at the pot edge is covered with an annular contact disk 19, this contact disk forming the outer contact area of the contact.
- a contact body 20 Arranged within the pot contact is a contact body 20, which is similar to the contact body 14 according to FIGS. 4 and 5 and consists of a piece of pipe, the wall of which is provided with several obliquely running slots 21.
- the contact body 20, which forms the inner contact area of the cup contact 18, projects axially beyond the contact disk 19 by the length b, which is approximately 2 mm.
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001512607A JP2003505841A (ja) | 1999-07-21 | 2000-07-20 | 真空バルブの接触子装置 |
EP00958175A EP1198812B1 (de) | 1999-07-21 | 2000-07-20 | Kontaktanordnung für eine vakuumschaltröhre |
DE50001992T DE50001992D1 (de) | 1999-07-21 | 2000-07-20 | Kontaktanordnung für eine vakuumschaltröhre |
US10/031,907 US6674039B1 (en) | 1999-07-21 | 2000-07-20 | Contact arrangement for a vacuum interrupter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19934909A DE19934909C1 (de) | 1999-07-21 | 1999-07-21 | Kontaktanordnung für eine Vakuumschaltröhre |
DE19934909.6 | 1999-07-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001008186A1 true WO2001008186A1 (de) | 2001-02-01 |
Family
ID=7916020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/002443 WO2001008186A1 (de) | 1999-07-21 | 2000-07-20 | Kontaktanordnung für eine vakuumschaltröhre |
Country Status (5)
Country | Link |
---|---|
US (1) | US6674039B1 (de) |
EP (1) | EP1198812B1 (de) |
JP (1) | JP2003505841A (de) |
DE (2) | DE19934909C1 (de) |
WO (1) | WO2001008186A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7906742B2 (en) * | 2004-07-05 | 2011-03-15 | Abb Research Ltd. | Vacuum interrupter chamber and contact arrangement for a vacuum circuit breaker |
CN101552153B (zh) * | 2009-05-15 | 2011-07-27 | 宁波晟光电气有限公司 | 一种真空灭弧室触头 |
EP2551878A1 (de) * | 2011-07-23 | 2013-01-30 | ABB Technology AG | Kontaktanordnung für einen Vakuumschalter |
US9685280B2 (en) | 2014-04-11 | 2017-06-20 | S&C Electric Company | Switchgear operating mechanism |
US9679708B2 (en) | 2014-04-11 | 2017-06-13 | S&C Electric Company | Circuit interrupters with masses in contact spring assemblies |
DE102015203693A1 (de) * | 2015-03-02 | 2016-09-08 | Siemens Aktiengesellschaft | Verfahren zum Herstellen von Vakuumschaltkontakten |
DE102015203830A1 (de) * | 2015-03-04 | 2016-09-08 | Siemens Aktiengesellschaft | Verfahren zum Herstellen von Vakuumschaltkontakten |
US9552941B1 (en) * | 2015-08-24 | 2017-01-24 | Eaton Corporation | Vacuum switching apparatus and electrical contact therefor |
CN108320997B (zh) * | 2018-03-23 | 2019-01-08 | 西安交通大学 | 多极式横向永磁体结构直流开断真空灭弧室及应用 |
CN110120320B (zh) * | 2019-06-06 | 2021-06-04 | 四川大学 | 一种具有内嵌聚磁环和反向触头杯的新型纵磁触头系统 |
CN111863507B (zh) * | 2020-06-18 | 2022-12-30 | 平高集团有限公司 | 用于高速机械开关的触头及断口结构 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1145151A (en) * | 1966-01-05 | 1969-03-12 | Ass Elect Ind | Improvements in or relating to vacuum switches |
US3809836A (en) * | 1972-12-21 | 1974-05-07 | Gen Electric | Vacuum-type electric circuit interrupter |
GB2071421A (en) * | 1980-03-14 | 1981-09-16 | Siemens Ag | Contact elements for electric vacuum switches |
DE3434417A1 (de) * | 1984-09-19 | 1986-03-20 | Siemens AG, 1000 Berlin und 8000 München | Kontaktanordnung fuer vakuumschalter |
DE3828556C1 (en) * | 1988-08-23 | 1990-03-15 | Sachsenwerk Ag, 8400 Regensburg, De | Contact arrangement for a vacuum switch |
DE4130230A1 (de) * | 1991-09-09 | 1993-03-11 | Slamecka Ernst | Vakuumschalter-kontaktanordnung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3158719A (en) * | 1962-04-03 | 1964-11-24 | Gen Electric | Contact structure for an electric circuit interrupter |
US3576960A (en) * | 1968-03-08 | 1971-05-04 | Gen Electric | Flange fastening means for a contact button for a vacuum-type circuit interrupter |
US3869589A (en) * | 1972-05-03 | 1975-03-04 | Westinghouse Electric Corp | Vacuum interrupter including contacts having improved weld break characteristics |
US3836740A (en) * | 1972-05-03 | 1974-09-17 | Westinghouse Electric Corp | Vacuum type circuit interrupter having improved contacts |
DE2912823A1 (de) * | 1979-03-30 | 1980-10-09 | Siemens Ag | Kontaktanordnung fuer vakuumschalter |
DE3415743A1 (de) * | 1984-04-26 | 1985-10-31 | Siemens AG, 1000 Berlin und 8000 München | Kontaktanordnung fuer einen vakuumschalter |
FR2650434B1 (fr) * | 1989-07-26 | 1995-11-24 | Merlin Gerin | Disjoncteur basse tension a contacts multiples et a fortes intensites |
WO1991019308A1 (de) * | 1990-06-07 | 1991-12-12 | Siemens Aktiengesellschaft | Kontaktanordnung für eine vakuumschaltröhre |
DE9401655U1 (de) * | 1993-06-18 | 1994-11-03 | Siemens AG, 80333 München | Vakuumschaltröhre mit ringförigem Isolator |
-
1999
- 1999-07-21 DE DE19934909A patent/DE19934909C1/de not_active Expired - Fee Related
-
2000
- 2000-07-20 JP JP2001512607A patent/JP2003505841A/ja not_active Abandoned
- 2000-07-20 DE DE50001992T patent/DE50001992D1/de not_active Expired - Fee Related
- 2000-07-20 WO PCT/DE2000/002443 patent/WO2001008186A1/de active IP Right Grant
- 2000-07-20 US US10/031,907 patent/US6674039B1/en not_active Expired - Fee Related
- 2000-07-20 EP EP00958175A patent/EP1198812B1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1145151A (en) * | 1966-01-05 | 1969-03-12 | Ass Elect Ind | Improvements in or relating to vacuum switches |
US3809836A (en) * | 1972-12-21 | 1974-05-07 | Gen Electric | Vacuum-type electric circuit interrupter |
GB2071421A (en) * | 1980-03-14 | 1981-09-16 | Siemens Ag | Contact elements for electric vacuum switches |
DE3434417A1 (de) * | 1984-09-19 | 1986-03-20 | Siemens AG, 1000 Berlin und 8000 München | Kontaktanordnung fuer vakuumschalter |
DE3828556C1 (en) * | 1988-08-23 | 1990-03-15 | Sachsenwerk Ag, 8400 Regensburg, De | Contact arrangement for a vacuum switch |
DE4130230A1 (de) * | 1991-09-09 | 1993-03-11 | Slamecka Ernst | Vakuumschalter-kontaktanordnung |
Also Published As
Publication number | Publication date |
---|---|
US6674039B1 (en) | 2004-01-06 |
DE50001992D1 (de) | 2003-06-05 |
EP1198812A1 (de) | 2002-04-24 |
DE19934909C1 (de) | 2001-06-13 |
JP2003505841A (ja) | 2003-02-12 |
EP1198812B1 (de) | 2003-05-02 |
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