EP2095387A1 - Installationsschaltgerät mit einer doppelunterbrechung - Google Patents
Installationsschaltgerät mit einer doppelunterbrechungInfo
- Publication number
- EP2095387A1 EP2095387A1 EP07819680A EP07819680A EP2095387A1 EP 2095387 A1 EP2095387 A1 EP 2095387A1 EP 07819680 A EP07819680 A EP 07819680A EP 07819680 A EP07819680 A EP 07819680A EP 2095387 A1 EP2095387 A1 EP 2095387A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact bridge
- contact
- opening
- slide
- switching device
- 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
- 238000009434 installation Methods 0.000 title claims abstract description 21
- 230000005520 electrodynamics Effects 0.000 claims description 9
- 230000006835 compression Effects 0.000 abstract 3
- 238000007906 compression Methods 0.000 abstract 3
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
- H01H73/045—Bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2418—Electromagnetic mechanisms combined with an electrodynamic current limiting mechanism
Definitions
- the invention relates to an installation switching device with a double interruption according to the preamble of claim 1.
- Generic installation switching devices such as motor protection switch, have at least one Polstrompfad, comprising two fixed contacts and two arranged on a movable contact bridge movable contact pieces through which a pole switch with two contacts and double interruption is formed.
- the contact bridge is acted upon by a pusher in the opening direction and by a contact pressure spring in the closing direction.
- generic service switching devices include an electromagnetic release whose armature strikes the contact bridge in the opening direction when a short-circuit current occurs in the pole current path via the pusher as well as unlatching the latching point of a switching mechanism, so that the switch lock permanently closes the contact bridge against the force via an active lever the contact pressure spring acts on opening.
- the active lever for the permanent keeping open of the contacts by the switching mechanism of the pusher movement hurries after. Under unfavorable conditions, it may happen that the contacts have already been closed again by the contact pressure spring, before the switch lock can cause a permanent opening via the active lever and the pusher.
- the pusher comprises a slider and a striker, which are arranged substantially displaceable in the direction of movement of the contact bridge relative to this and relative to each other, wherein the arrangement of slide, striker, contact bridge, active lever and armature is arranged so that in case of short circuit, the anchor over the striker the contact bridge opens in the opening direction, the slider lags the striker before the active lever holds the contact bridge against the contact pressure force permanently in the open position on the slide.
- the pusher according to the invention is thus designed in two pieces. This makes it possible that a first part of the pusher, namely the striker pin can be accelerated very quickly by the anchor in the event of short circuit due to its small mass and thus very quickly hits the contact bridge.
- the contact bridge has been opened and thus the short-circuit current is interrupted, the force effect of the armature ends on the striker.
- the contact bridge is now pressed by the force of the contact pressure spring in the closing direction.
- the inventively as the second part of the pusher the striker lagging slider can slow this countermovement of the contact bridge, so that the contact bridge is prevented from closing the contacts before the active lever, in the due to the greater mechanical inertia of the switch latch the striker still lags, Finally, the contact bridge is permanently held in the open position via the slide.
- the contact bridge is guided displaceably in a first opening of the slider in its direction of movement.
- the striker pin is slidably guided in a second opening of the slider in the direction of movement of the contact bridge.
- the leadership of the striker pin in the second opening of the slide is advantageously dimensioned so that the striker pin in its opening direction of the contact bridge due to an existing frictional force between striker and slider entrains this lagging in the opening direction.
- the slider in the first opening has a first shoulder, which forms an upper stop for the contact bridge. This ensures a very compact structure.
- the slider strikes in its opening direction of the contact bridge in its stroke following the striker pin, the opposite action of the contact bridge in the closing direction is slowed down by the first shoulder acting as an upper stop.
- the slider has on its outer side a second shoulder, which forms a point of application for the active lever.
- the arrangement of striker, slide and contact bridge is dimensioned so that the mass of the slider is equal to or greater than the sum of the masses of striker and contact bridge. This results in the advantage that the force of the return spring on the contact bridge is smaller than the force acting on the contact bridge due to the genetic energy of the striker pin when opening.
- the slide in the first, the contact bridge leading opening has a third paragraph, which forms a lower stop for the contact bridge.
- the contact bridge initially takes the slide partially open in the opening direction during its impact movement in the opening direction and thereby supports its movement lagging in the opening direction following the striking pin. If, after the collapse of the electrodynamic see recoil of the electromagnetic release, the contact bridge due to the force of the contact pressure spring again moves in the opposite direction in the closing direction, so in the embodiment just described, the slider has advanced even further in the opening direction and hits with its first paragraph even earlier on the contact bridge, whereby a still more effective braking of the opposite closing movement of the contact bridge takes place.
- FIG. 1a shows a functional diagram of an installation switching device according to the invention with a pusher according to the invention in the rest position
- FIG. 1 b a sectional view of the pusher according to the invention according to FIG. 1 a in the rest position
- FIG. 2a shows a functional diagram of an installation switching device according to the invention with a pusher according to the invention shortly after the occurrence of a short-circuit current
- FIG. 2b shows a sectional view of the pusher according to the invention according to FIG. 2a
- FIG. 3a shows a functional diagram of an installation switching device according to the invention with a pusher according to the invention at maximum deflection of
- FIG. 3b shows a sectional view of the pusher according to the invention according to FIG. 3a
- FIG. 4a shows a functional diagram of an installation switching device according to the invention with a pusher according to the invention in the case of opposite movement of the contact bridge and the slide,
- FIG. 4b shows a sectional view of the pusher according to the invention according to FIG. 4a
- 5a shows a functional diagram of an installation switching device according to the invention with a pusher according to the invention at the beginning of the action of the switching mechanism on the active lever
- FIG. 5b shows a sectional view of the pusher according to the invention in the position according to FIG. 5a, FIG.
- FIG. 6a a functional diagram of an installation switching device according to the invention with a pusher according to the invention with permanent opening through the switch lock via the active lever, FIG.
- FIG. 6b shows a sectional view of the pusher according to the invention in the position FIG. 6a, FIG.
- Figure 7 a sectional view of a trigger according to the invention according to a further embodiment
- FIG. 8 shows a sectional view of a pusher according to the invention in accordance with a third embodiment.
- FIGS. 1 to 8 identical or equivalent elements or assemblies are designated by the same reference numerals.
- FIG. 1 shows an inventive installation switching device 1 with a Polstrompfad 2 between an input terminal 3 and an output terminal 4. It could for example be a Polstrompfad a three-pole motor protection switch, the other two Polstrompfade are constructed accordingly.
- the pole current path 2 comprises two stationary contact pieces 5, 6 and two movable contact pieces 8, 9 arranged on a movable contact bridge 7, through which a contact point 10 with double interruption is formed.
- the contact bridge 7 is acted upon by a contact pressure spring 11 in the closing direction, see the directional arrow S.
- a pusher 12 which engages the contact pressure spring 11 opposite side of the contact bridge 7, this can be applied in the opening direction, see direction arrow O.
- the Polstrompfad 2 still includes a thermal release 113 and an electromagnetic release 13 with an armature that hits the contact bridge 7 in the opening direction in the event of a short circuit current occurring in the Polstrompfad 2 due to an electrodynamic recoil over the pusher 12, indicated by the action line 14.
- thermal release 113 which also acts in the case of an overcurrent on the switching mechanism 15, indicated by the action line 114, is known in principle and not the subject of the present invention.
- the thermal release 113 is shown here only for the sake of completeness.
- the mechanical system comprising the switching mechanism 15 and the active lever 17 may, for example, be a toggle lever system with a two-stage lock.
- the active lever 17 is designed as a double-arm lever, the first, acted upon by the switching mechanism 15 lever arm 171 and the second, cooperating with the pusher 12 lever arm 172 form an obtuse angle with each other and is rotatably mounted in a stationary axis of rotation 173, whereby the Wirkhe- at 17 acts as a lever.
- the mechanical system just described has a certain mechanical inertia, which after unlocking a certain amount of time, for example, 2 to 5 ms, passes before the active lever 17 hits the pusher 12 to apply this permanently in the opening direction.
- the time to direct impact of the contact bridge 7 by the -Anker of the electromagnetic release 13 is much shorter, it is for example only 1 ms.
- the pusher 12 is designed in two parts. It comprises a slider 19 and a striking pin 20. As can be seen in the sectional view of Figure 1 b, the pusher 12 is an elongate member having approximately a cylindrical or cuboidal basic shape.
- the striking pin 20 is guided movably in a second, channel-like opening 22 in the slide 19, likewise in the closing or opening direction of the contact bridge 7. It projects beyond the slide 19 in the direction of the point of the impact anchor.
- a first shoulder 23 is formed which serves as an upper stop for the contact bridge 7.
- a second shoulder 24 is formed, which serves as a point of attack for the active lever 17.
- FIG. 5 a the time is recorded in which the inertia-related delay of the mechanical system consisting of the switching mechanism 15 and the active lever 17 has ended and the active lever 17 designed as a toggle lever is clocked by the switching mechanism 15, indicated by the action arrow K is twisted.
- the contact point 10 is still open.
- the slider 19 Upon further upward movement in the closing direction S, the slider 19 hits with its second paragraph 24 on the rotating further clockwise active lever 17.
- the switch lock 15 is unlatched, and holds - indicated by the arrow K - the active lever 17 permanently in such a position that he holds on the second paragraph 24 the slider 19 so far in the opening direction O that the contact point 10 remains permanently open. A contact bounce has obviously not occurred.
- the opening of the contact bridge 7 through the armature of the electromagnetic release 13 takes place in the manner described above, preferably with small and medium short-circuit currents. At high short-circuit currents, approximately greater than 1 to 2 kA, the opening is located via an electrodynamic repulsion between the fixed and movable contact pieces 5.6; 8,9 instead.
- FIG. 7 shows a further embodiment of a slide 19a according to the invention.
- the first opening 21 is closed at the bottom by a web 25.
- the range of movement of the contact bridge 7 is thus limited in the first opening 21 between acting as the upper stop first shoulder 23 and the web 25.
- the advantageous effect of the web 25 is that during the downward movement of the striker pin 20, this acts as a lower stop and the slider 19 actively takes down in the opening direction. He supports the trailing entrainment of the slider 19 down in the opening direction O by the striker 20.
- Figure 8 shows Another variant. There are instead of a continuous web in the first opening 21 at the open end two paragraphs 26 each with bevelled side surfaces 27th appropriate. The entrainment of the slide 19 through the contact bridge 7 takes place via the inclined surfaces 27th
- the service switching device thus comprises two moving systems.
- the first moving subsystem comprises the striker 20 and the contact bridge 7, to the second moving subsystem includes the slider 19.
- the two moving subsystems must be dimensioned so that the force of the contact pressure spring 11 on the contact bridge 7 is smaller than the force that the Striking pin 20 due to the kinetic energy communicated to it from the armature of the electromagnetic release 13 by the impact.
- the mass of the slider 19 must be greater or at least equal to the sum of the masses of the striker pin 20 and the contact bridge. 7 LIST OF REFERENCE NUMBERS
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Lock And Its Accessories (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006055007A DE102006055007A1 (de) | 2006-11-22 | 2006-11-22 | Installationsschaltgerät mit einer Doppelunterbrechung |
PCT/EP2007/009670 WO2008061630A1 (de) | 2006-11-22 | 2007-11-08 | Installationsschaltgerät mit einer doppelunterbrechung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2095387A1 true EP2095387A1 (de) | 2009-09-02 |
EP2095387B1 EP2095387B1 (de) | 2015-10-14 |
Family
ID=38988051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07819680.5A Active EP2095387B1 (de) | 2006-11-22 | 2007-11-08 | Installationsschaltgerät mit einer doppelunterbrechung |
Country Status (5)
Country | Link |
---|---|
US (1) | US8138862B2 (de) |
EP (1) | EP2095387B1 (de) |
CN (1) | CN101542668B (de) |
DE (1) | DE102006055007A1 (de) |
WO (1) | WO2008061630A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006055007A1 (de) | 2006-11-22 | 2008-05-29 | Abb Ag | Installationsschaltgerät mit einer Doppelunterbrechung |
US11222313B2 (en) | 2008-01-11 | 2022-01-11 | Deluxe Small Business Sales, Inc. | System and method for managing financial transactions based on electronic check data |
DE102008016036A1 (de) | 2008-03-28 | 2009-10-01 | Abb Ag | Installationsschaltgerät mit einer Doppelunterbrechung |
GB0915379D0 (en) * | 2009-09-03 | 2009-10-07 | Deepstream Technologies Ltd | Miniature circuit breaker |
DE102010005345B4 (de) | 2010-01-21 | 2022-04-21 | Abb Schweiz Ag | Elektrisches Schaltgerät in modularer Bauweise |
DE102010017900A1 (de) * | 2010-04-21 | 2011-10-27 | Abb Ag | Installationsschaltgerät mit einer Doppelunterbrechung |
KR101072627B1 (ko) * | 2010-10-15 | 2011-10-13 | 엘에스산전 주식회사 | 전자 개폐기의 가동접점 조립체 |
DE102011008831A1 (de) * | 2011-01-19 | 2012-07-19 | Abb Ag | Istallationsschaltgerät |
ITMI20111412A1 (it) * | 2011-07-28 | 2013-01-29 | Electrica Srl | Dispositivo a rele' a configurazione bilanciata con prestazioni migliorate |
EP2849199A1 (de) * | 2013-09-16 | 2015-03-18 | Siemens Aktiengesellschaft | Schalteinheit, insbesondere Leistungsschalter |
DE102014117491A1 (de) * | 2014-11-28 | 2016-06-02 | Eaton Electrical Ip Gmbh & Co. Kg | Schaltgerät mit einem Antrieb zum betriebsmäßigen Schalten und mit einem Schnellauslöser zum Trennen eines Strompfads in dem Schaltgerät |
DE202015100926U1 (de) | 2015-02-26 | 2015-03-10 | Abb Technology Ag | Elektrisches Schaltgerät in modularer Bauweise |
CN106876206A (zh) * | 2017-03-31 | 2017-06-20 | 宁波安德奥电力设备有限公司 | 双输出直线自滑动开关 |
GB2571365A (en) * | 2018-02-23 | 2019-08-28 | Eaton Intelligent Power Ltd | Electrical Switchgear |
CN112420461B (zh) * | 2020-11-09 | 2022-08-09 | 广东电网有限责任公司东莞供电局 | 一种断路器紧急分闸机构 |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
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AT207933B (de) | 1958-12-01 | 1960-03-10 | Elektro App Werke Veb | Vorrichtung zur Verhinderung von Kontaktprellungen bei Schaltgeräten, insbesondere bei elektromagnetischen Schaltern |
DE2358382B2 (de) * | 1973-11-23 | 1975-09-18 | Ellenberger & Poensgen Gmbh, 8503 Altdorf | Uberstromschaltvorrichtung mit zwei hintereinandergeschalteten Unterbrechungsstellen |
FR2408209A1 (fr) * | 1977-11-08 | 1979-06-01 | Telemecanique Electrique | Contacteur electro-magnetique equipe d'un electro-aimant sensible aux surintensites pour provoquer la limitation et la coupure des courants excessifs |
DE3117914C2 (de) * | 1981-05-06 | 1983-09-01 | Siemens AG, 1000 Berlin und 8000 München | Elektromagnetisches Schaltgerät |
FR2516304A1 (fr) * | 1981-11-09 | 1983-05-13 | Telemecanique Electrique | Interrupteur a commande mecanique et ouverture automatique |
EP0173756B1 (de) | 1984-09-01 | 1988-12-21 | Square D Starkstrom GmbH | Kontaktvorrichtung |
FR2611082B1 (fr) * | 1987-02-13 | 1993-05-28 | Telemecanique Electrique | Appareil interrupteur de protection a ouverture et fermeture telecommandables |
US4893102A (en) | 1987-02-19 | 1990-01-09 | Westinghouse Electric Corp. | Electromagnetic contactor with energy balanced closing system |
DE8805875U1 (de) | 1988-05-03 | 1989-09-07 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De | |
JP2812810B2 (ja) * | 1990-02-14 | 1998-10-22 | 三菱電機株式会社 | 開閉器 |
FR2669463B1 (fr) * | 1990-11-15 | 1995-05-12 | Telemecanique | Interrupteur de protection. |
FR2673486B1 (fr) | 1991-02-28 | 1996-03-01 | Telemecanique | Appareil interrupteur de courant. |
FR2673487B1 (fr) * | 1991-02-28 | 1993-10-29 | Telemecanique | Interrupteur de protection incorporant un sous-ensemble magnetothermique de declenchement. |
FR2676592B1 (fr) | 1991-05-13 | 1993-07-23 | Telemecanique | Appareil interrupteur de courant a protection thermique et magnetique. |
FR2685976A1 (fr) * | 1992-01-07 | 1993-07-09 | Telemecanique | Mecanisme pour appareil interrupteur de courant. |
FR2687251B1 (fr) * | 1992-02-11 | 1994-04-29 | Telemecanique | Structure de coupure pour disjoncteur. |
FR2691576B1 (fr) * | 1992-05-22 | 1994-07-08 | Telemecanique | Appareil interrupteur de protection. |
FR2707794B1 (fr) * | 1993-07-12 | 1995-08-18 | Telemecanique | Appareil interrupteur de protection. |
DE19540972B4 (de) * | 1995-11-03 | 2005-05-04 | Moeller Gmbh | Strombegrenzendes Kontaktsystem mit Doppeltunterbrechung für Niederspannungs-Schutzschalter |
FR2743190B1 (fr) | 1995-12-29 | 1998-01-30 | Schneider Electric Sa | Coulisseau porte-contacts pour contacteurs |
DE19716380C1 (de) | 1997-04-18 | 1998-10-08 | Siemens Ag | Elektromagnetisches Schaltgerät |
DE29714318U1 (de) | 1997-08-11 | 1997-12-04 | Siemens Ag | Kontaktsystem für Schaltgeräte |
JP2000340093A (ja) * | 1999-05-25 | 2000-12-08 | Fuji Electric Co Ltd | 回路遮断器の過電流引外し装置 |
EP1269597A1 (de) * | 2000-04-07 | 2003-01-02 | Siemens Aktiengesellschaft | Schaltverfahren für ein elektromagnetisches schaltgerät und hiermit korrespondierendes elektromagnetisches schaltgerät |
FR2813988B1 (fr) | 2000-09-08 | 2003-10-17 | Schneider Electric Ind Sa | Dispositif de coupure d'un appareil interrupteur |
FR2818435B1 (fr) * | 2000-12-18 | 2003-10-31 | Schneider Electric Ind Sa | Ensemble d'appareils electriques pour la commande d'appareils de puissance |
DE10356271B4 (de) | 2003-11-28 | 2008-02-14 | Siemens Ag | Schaltgerät |
CN101084561B (zh) * | 2004-12-23 | 2010-05-26 | 西门子公司 | 使开关设备安全工作的方法和装置 |
DE102006055007A1 (de) | 2006-11-22 | 2008-05-29 | Abb Ag | Installationsschaltgerät mit einer Doppelunterbrechung |
-
2006
- 2006-11-22 DE DE102006055007A patent/DE102006055007A1/de not_active Withdrawn
-
2007
- 2007-11-08 EP EP07819680.5A patent/EP2095387B1/de active Active
- 2007-11-08 US US12/516,019 patent/US8138862B2/en active Active
- 2007-11-08 CN CN2007800430811A patent/CN101542668B/zh active Active
- 2007-11-08 WO PCT/EP2007/009670 patent/WO2008061630A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2008061630A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2095387B1 (de) | 2015-10-14 |
WO2008061630A1 (de) | 2008-05-29 |
CN101542668A (zh) | 2009-09-23 |
CN101542668B (zh) | 2012-11-07 |
DE102006055007A1 (de) | 2008-05-29 |
US20100019873A1 (en) | 2010-01-28 |
US8138862B2 (en) | 2012-03-20 |
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