EP0897183A2 - Hochstrom-Schaltvorrichtung - Google Patents
Hochstrom-Schaltvorrichtung Download PDFInfo
- Publication number
- EP0897183A2 EP0897183A2 EP98114614A EP98114614A EP0897183A2 EP 0897183 A2 EP0897183 A2 EP 0897183A2 EP 98114614 A EP98114614 A EP 98114614A EP 98114614 A EP98114614 A EP 98114614A EP 0897183 A2 EP0897183 A2 EP 0897183A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- switching
- finger
- contact
- band
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
- H01H1/5822—Flexible connections between movable contact and terminal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
- H01H1/5822—Flexible connections between movable contact and terminal
- H01H2001/5827—Laminated connections, i.e. the flexible conductor is composed of a plurality of thin flexible conducting layers
Definitions
- the invention relates to a high-current switching device, which two contact plates to be connected to separate current conductors, at least one attached to one of the contact plates, movably mounted Shift finger and on the shift fingers and the other contact plate arranged contacts, each shift finger via a Strain band electrically connected to the one contact plate is.
- the switching fingers of high-current switching devices are used for disconnection and closing the circuit, covering a switching path have, for power transmission, as a base for switch contacts, for switching over time via pre-contacts, for deleting Arcs arising during the switching process, for heat emission and for Recording of the mechanical resulting from the switching dynamics Stresses. Accordingly, the shift fingers of High current switching devices have high electrical and mechanical Resilience, small size and good electrical conductivity exhibit. In addition, the shift finger is inexpensive have to be manufactured.
- Shift fingers are sufficient, have high-current switching devices in the generally several shift fingers. You can use one or Several of the switching fingers pre-contacts can be provided if this is for the respective switching operation is appropriate. In addition, at one or more of the shift fingers as well as on the counter contact plate Horns for deriving the arc that arises during the switching process to be appropriate.
- the provided on the shift fingers and the counter contact plate Contact pieces can consist of special alloys. Their surface is mostly tinned or silver-plated.
- the contact fingers themselves usually consist of copper, in particular (S) E-Cu F25-30, whereby the surface of which is silvered or tinned when the stretch bands or conductor are screwed on while the surface is bare is when the parts are connected by welding or soldering.
- the known shift fingers contain bores and have incisions or peaks to absorb mechanical forces from actuators or feathers. At the force application points or Places with high bending moments result in loads that increase Deformations of the shift fingers lead when the mechanical strength of the material of the shift finger, namely the Copper, is reduced. Therefore, one must in the manufacture of the known shift finger make sure that only locally limited little heat is introduced into the material, namely copper, why expensive manufacturing processes such as percussion welding or Electron beam welding must be applied. Alternatively the contacts or stretch bands can also be screwed on what high assembly costs and also high contact resistance Has. In the latter case, however, defective parts can also be removed replace more easily.
- the invention is based, with high-current switching devices the task the shift fingers simple and therefore inexpensive to be able to produce that this one hand a good electrical Conductivity and on the other hand also a high mechanical Have resilience.
- the invention ensures that the power transmission provided current conductor, which in particular made of copper exist, practically not also for the inclusion of the mechanical Loads resulting from the switching operations and switching movements result, must be used. Accordingly, they can Elongation band forming, made of copper lamellae or strands connected at their ends by inexpensive welds become.
- the mechanical loads for the power line unnecessary housing made of non-magnetizable stainless steel or VA steel.
- the contacts to be provided on the shift fingers can, for example be brazed because of the power line provided stretch bands practically no mechanical loads must pick up and accordingly at the welding and soldering points can be mechanically weakened without the functionality of the To affect shift fingers.
- the housing of the individual shift fingers is preferably in two parts trained and contains holes, has incisions or peaks for absorbing mechanical forces from actuators and Springs up.
- the parts of the housing as well as those for adjusting the Springs provided for the shift finger are preferably punched out of sheet metal.
- the stretch bands consist of a number of lamellas or strands joined together at their ends by pressure welding are connected.
- the stretch bands can be narrow, single Fingers, or as a stretch band slit through one end be trained. At the free ends of this stretch band or these expansion bands are expediently brazed contact pieces appropriate.
- the at the force application points or places with high bending moments occurring high loads are according to the invention in Comparison to copper high strength steel sheet such as VA material added.
- the stretch bands made of copper strands or lamellae can accordingly at their ends by pressure welding or brazing be connected because of the associated heat influence resulting reduced strength of the stretch bands none causes significant disadvantages because of the mechanical strength is ensured by the housing provided according to the invention.
- the laminated area of the Stretch band is extended by approximately the length of the shift finger, what a significant increase in the life of the stretch band and so that the switch as a whole results.
- the switching device has two electrically conductive contact plates 1 and 2 for externally connecting the switching device to one here not shown current-transmitting electrical conductor, which means the switching device is to be interrupted or closed.
- Switch fingers 3 are connected to the contact plate 1, which form the actual switching element. Each shift finger 3 is around one Swivel joint 4 pivotally mounted to the necessary switching movements to be able to execute.
- An actuating element 5 for example a cylinder or engine, provides the necessary via a linkage 6 or an eccentric Switching movements of the shift finger 3.
- a linkage 6 or an eccentric Switching movements of the shift finger 3 are several shift fingers provided, all shift fingers are operated with the same mechanism. However, a pre-contact function is for at least one switching finger due to a changed geometry on shift fingers or Actuation mechanism possible.
- Each shift finger 3 consists of a housing 7 and an expansion band 8.
- the stretch band 8 consists of a plurality of one Package of assembled lamellae 9 made of copper, which at their ends 10 and 11 are joined together by pressure welding while being the slats 9 between the two ends 10 and 11 otherwise free can move against each other to the function of the stretch band to be able to fulfill.
- stretch band 8 or its slats 9 for the transmission serve the electrical current, that is part of the stretch band 8 enclosing housing 7 made of non-magnetizable sheet steel, preferably VA steel sheet, manufactured and takes over the switching operations resulting mechanical loads.
- the stretch band 8 therefore does not need for the transmission of the mechanical Switching forces to be designed. So you can end 10 and 11 by simple and inexpensive heat treatment, for example by Pressure welding, combine into a compact package.
- the solder layer 14 consists, for example, of silver solder L-AG 44 or L-AG 15 P.
- a horn 15 is attached, the one the same horn 16 attached to the second contact plate 2 is opposite.
- the horns 15 and 16 are used to derive the Switching arc.
- the contact piece 13 of the shift finger 3 is an identical contact piece 17 opposite, which is attached to the second contact plate 2 and also consists of a special alloy.
- a compression spring 18 presses the shift finger 3 towards the second Contact plate 2 so that the contact pieces 13 and 17 are firmly on top of each other if the contact should be closed.
- the housing 7 consists of two bowl-shaped parts 19 and 20, such as 2 and 4 in particular. These bowl-shaped housing parts 19 and 20 are each formed from a stamped sheet metal blank and are spot welded together at their longitudinal edges 21, so that the housing 7 a the mechanical switching loads absorbing unit.
- Fig. 3 shows that three shift fingers 3 formed from an expansion band 8 are, which is longitudinally slotted through two incisions 22 to the to form three shift fingers.
- the rear end 10 of the three shift fingers or the stretch band is common to all three shift fingers, while the front ends 11 with the brazed to it Contacts 13 are separated from each other to the shift finger individually to be able to adjust.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Transmission Device (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Manufacture Of Switches (AREA)
Abstract
Description
- Fig. 1
- eine Seitenansicht der Schaltvorrichtung im Bereich eines Schaltfingers,
- Fig. 2
- einen Querschnitt des Schaltfingers im Bereich des Gehäuses,
- Fig.3
- eine Draufsicht auf drei nebeneinander angeordnete und an einem Ende untereinander verbundene Schaltfinger und
- Fig. 4
- einen Querschnitt eines Schaltfingers im Bereich des angelöteten Kontaktes.
Claims (7)
- Hochstrom-Schaltvorrichtung, mit zwei an Stromleiter anzuschließenden Kontaktplatten (1;2), mit wenigstens einem an einer der Kontaktplatten (1) angebrachten, bewegbar gelagerten Schaltfinger (3) und mit an den Schaltfingern und der anderen Kontaktplatte (2) angeordneten Kontakten (13;17), wobei jeder Schaltfinger über ein Dehnungsband (8) mit der einen Kontaktplatte (1) verbunden ist,
dadurch gekennzeichnet,
daß jeder Schaltfinger (3) ein die mechanischen Belastungen aufnehmendes Gehäuse (7) aufweist und daß das Dehnungsband (8) sich in dem Gehäuse bis zu dem Kontakt (13) des Schaltfingers erstreckt. - Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Dehnungsband (8) jedes Schaltfingers (3) aus Kupfer und das Gehäuse (7) aus rostfreiem antimagnetischem Stahl besteht.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Dehnungsband (8) aus an beiden Enden (10;11) des Dehnungsbandes miteinander verschweißten Lamellen (9) oder Litzen besteht.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Kontakt (13) jedes Schaltfingers (3) an das eine Ende (11) des Dehnungsbandes (8) angelötet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das andere Ende (10) des Dehnungsbandes (8) an die erste Kontaktplatte (1) angelötet oder angeschweißt ist.
- Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Gehäuse (7) aus zwei Stahlblechzuschnitten (19, 20) geformt ist, die dauerhaft miteinander verbunden sind.
- Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Gehäuse (7) den vorderen bzw. freien Teil des Dehnungsbandes (8) umschließt und das Dehnungsband mit seinem hinteren Teil aus dem Gehäuse herausragt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19734968 | 1997-08-13 | ||
DE19734968A DE19734968A1 (de) | 1997-08-13 | 1997-08-13 | Hochstrom-Schaltvorrichtung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0897183A2 true EP0897183A2 (de) | 1999-02-17 |
EP0897183A3 EP0897183A3 (de) | 1999-09-01 |
EP0897183B1 EP0897183B1 (de) | 2003-04-23 |
Family
ID=7838779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98114614A Expired - Lifetime EP0897183B1 (de) | 1997-08-13 | 1998-08-04 | Hochstrom-Schaltvorrichtung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0897183B1 (de) |
DE (2) | DE19734968A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19932996C2 (de) * | 1999-07-09 | 2002-07-18 | Mitsubishi Electric Corp | Leiter mit Flexiblem Teil |
DE19964249C2 (de) * | 1998-03-26 | 2002-11-21 | Mitsubishi Electric Corp | Schalteinrichtung |
DE102006050767B3 (de) * | 2006-10-27 | 2008-05-29 | Moeller Gmbh | Stromzuführung für einen beweglichen Kontaktarm |
EP2166550A1 (de) | 2008-09-23 | 2010-03-24 | General Electric Company | Einheitlicher Schutzschalterstrompfad |
WO2017162392A1 (de) * | 2016-03-22 | 2017-09-28 | Siemens Aktiengesellschaft | Phasenleiteranordnung |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007048748A1 (de) * | 2007-10-08 | 2009-04-09 | Siemens Ag | Kontakthebel |
DE102013101080B9 (de) | 2013-02-04 | 2014-12-24 | Connex Gmbh | Verfahren zur Herstellung eines Strombandes |
DE102022004752A1 (de) | 2022-12-16 | 2023-03-02 | Mercedes-Benz Group AG | Bauteilanordnung zur elektrischen Kontaktierung und Verfahren zur Herstellung der Bauteilanordnung |
DE102023000758B3 (de) * | 2023-03-02 | 2024-02-29 | Mercedes-Benz Group AG | Verbundanordnung mit zumindest einem Dehnungsband und Verfahren zur Herstellung der Verbundanordnung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1560308A (en) * | 1923-10-19 | 1925-11-03 | Gen Electric | Electrical switch |
US1680701A (en) * | 1927-04-04 | 1928-08-14 | Gen Electric | Contact-connecter shunt |
US4144554A (en) * | 1976-12-08 | 1979-03-13 | Square D Company | Circuit breaker bolt-on flexible connector |
DE4416104A1 (de) * | 1994-04-19 | 1995-10-26 | Siemens Ag | Schaltkontaktanordnung eines elektrischen Leistungsschalters |
-
1997
- 1997-08-13 DE DE19734968A patent/DE19734968A1/de not_active Withdrawn
-
1998
- 1998-08-04 EP EP98114614A patent/EP0897183B1/de not_active Expired - Lifetime
- 1998-08-04 DE DE59808017T patent/DE59808017D1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1560308A (en) * | 1923-10-19 | 1925-11-03 | Gen Electric | Electrical switch |
US1680701A (en) * | 1927-04-04 | 1928-08-14 | Gen Electric | Contact-connecter shunt |
US4144554A (en) * | 1976-12-08 | 1979-03-13 | Square D Company | Circuit breaker bolt-on flexible connector |
DE4416104A1 (de) * | 1994-04-19 | 1995-10-26 | Siemens Ag | Schaltkontaktanordnung eines elektrischen Leistungsschalters |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19964249C2 (de) * | 1998-03-26 | 2002-11-21 | Mitsubishi Electric Corp | Schalteinrichtung |
DE19932996C2 (de) * | 1999-07-09 | 2002-07-18 | Mitsubishi Electric Corp | Leiter mit Flexiblem Teil |
DE102006050767B3 (de) * | 2006-10-27 | 2008-05-29 | Moeller Gmbh | Stromzuführung für einen beweglichen Kontaktarm |
EP2166550A1 (de) | 2008-09-23 | 2010-03-24 | General Electric Company | Einheitlicher Schutzschalterstrompfad |
CN101685726A (zh) * | 2008-09-23 | 2010-03-31 | 通用电气公司 | 断路器整体式电流路径 |
WO2017162392A1 (de) * | 2016-03-22 | 2017-09-28 | Siemens Aktiengesellschaft | Phasenleiteranordnung |
Also Published As
Publication number | Publication date |
---|---|
EP0897183A3 (de) | 1999-09-01 |
DE19734968A1 (de) | 1999-02-18 |
EP0897183B1 (de) | 2003-04-23 |
DE59808017D1 (de) | 2003-05-28 |
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