EP0855085B1 - Housing for switchgears - Google Patents

Housing for switchgears Download PDF

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Publication number
EP0855085B1
EP0855085B1 EP96945156A EP96945156A EP0855085B1 EP 0855085 B1 EP0855085 B1 EP 0855085B1 EP 96945156 A EP96945156 A EP 96945156A EP 96945156 A EP96945156 A EP 96945156A EP 0855085 B1 EP0855085 B1 EP 0855085B1
Authority
EP
European Patent Office
Prior art keywords
magnetic
magnet
switchgear housing
supporting
housing according
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 - Lifetime
Application number
EP96945156A
Other languages
German (de)
French (fr)
Other versions
EP0855085A2 (en
Inventor
Hans Pfab
Manfred Schmidt
Norbert Zimmermann
Norbert SÖRGEL
Peter Donhauser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0855085A2 publication Critical patent/EP0855085A2/en
Application granted granted Critical
Publication of EP0855085B1 publication Critical patent/EP0855085B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature

Definitions

  • the invention relates to a switchgear housing for an electromagnetic switching device that is a magnetic chamber having a magnetic yoke and a magnetic armature, wherein on Magnetic chamber bottom of the switchgear housing two magnetic support areas with different elastic suspension for Storage of the magnetic yoke are present.
  • the invention has for its object a switchgear housing of the above type in such a way that a Bouncing back of the magnet armature on simple and at the same time effectively diminished.
  • the magnetic chamber floor is designed to vibrate and on its the interior of the Switching device housing facing surface a support strip has, the ends of which serve as magnetic support areas, a first magnet support area at one end only is held by magnetic chamber floor.
  • the second magnet support area is ribbed with closed frame profiles, because hereby a hard resilient magnetic support area in a simple manner is realized. If between the magnetic yoke and the Support strip an insert rubber is inserted, can hereby especially depending on the height of the support strip influence the spring properties of the soft magnetic contact area.
  • the housing 1 is one Protection 2, in the magnetic chamber 3 housed the magnet system is.
  • This essentially consists of a magnetic yoke 4, a magnet armature 5, a coil 6 with coil connections, a contact carrier 7 and a conical spring 8.
  • Das Magnet system is with its magnetic yoke 4 on the bottom of the magnetic chamber 9 of the contactor housing 1 with the interposition of an insert rubber 10 stored.
  • the magnetic chamber base 9 is included two not shown here, different resilience Magnet support areas 11, 12 formed.
  • the one magnetic support area 11 has a soft, the other 12 a relatively hard suspension (see FIG 3).
  • FIG. 2 shows the underside of the contactor housing 1 with the closed Magnetic chamber floor 9 and frame profiles 15 shown.
  • 3 shows an interior view of the contactor housing 1 with the magnetic chamber base 9.
  • the magnetic support areas 11, 12 are on the inside of the magnetic chamber base 9 as a support strip formed, one end of the magnet chamber floor on all sides 9 is enclosed and its other end in passes over a wide, reinforced area 13. These two Ends serve as magnetic support areas 11, 12 with the already mentioned soft and hard suspension.
  • Four on the bottom of the magnetic chamber 9 projecting ribs 14 serve for lateral guidance of the magnetic yoke 4.
  • the magnetic chamber bottom 9 is relative thin-walled.
  • the soft magnetic support area 11 of the support strip is on all sides of the magnetic chamber bottom 9 surrounded, on the other hand with the greatest possible distance to the Walls of the contactor housing 1 is connected.
  • the other, hard Magnet support area 12 is with closed frame profiles 15 ribbed according to FIG 2. Through the wide area 13 is on the hard support side for the magnetic yoke 4 a wide magnetic support given, while on the soft support side narrow, not completely continuous magnetic support is available.
  • the contactor housing 1 described above is special Training of the magnetic chamber base 9 rebound-optimized. This means that the shock processes that occur due to the relatively high closing speed when closing a AC magnets result in extremely well cushioned be without the magnet armature 5 with the contact carrier 7 (see FIG. 1) bounces back to the "OFF" position.
  • the magnetic chamber base 9 is completely closed at the bottom, with possible problems with creepage distances and clearances between the coil 6 and the underside used as the mounting level of the contactor housing 1 excluded from the outset become.
  • the effect of the above-described contactor housing 1 is based on following technical measures.
  • the very thin, all around connected magnetic chamber floor 9 has with the soft support area 11 results in a progressive spring characteristic.
  • the damping component caused by the contactor housing 1 not so dependent on temperature and humidity such as. a resilient cantilever with linear characteristic. In front this is all due to the temperature and moisture content dependent elasticity property of this used plastic.
  • the insert rubber 10 has the following Influence on the dampening effect. He is at rest, i.e. on the soft support area 11 and comes after its deflection over a large area on the magnetic chamber floor 9 to the edition.
  • spring characteristics 16, 17 are Representation of the spring properties of the magnetic chamber base 9 shown.
  • the spring characteristic curves 16 below show in principle the effect when inserting an insert rubber 10, the upper spring characteristic curves 17 when such is not used Inlay.
  • the spring characteristics 16, 17 initially have one relatively flat course and then increase progressively, i.e. with increasing travel or greater deflection, the Power consumption disproportionately.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Vibration Prevention Devices (AREA)
  • Electromagnets (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Description

Die Erfindung bezieht sich auf ein Schaltgeräte-Gehäuse für ein elektromagnetisches Schaltgerät, das eine Magnetkammer mit einem Magnetjoch und einem Magnetanker aufweist, wobei am Magnetkammer-Boden des Schaltgeräte-Gehäuses zwei Magnet-Auflagebereiche mit unterschiedlicher elastischer Federung zur Lagerung des Magnetjochs vorhanden sind.The invention relates to a switchgear housing for an electromagnetic switching device that is a magnetic chamber having a magnetic yoke and a magnetic armature, wherein on Magnetic chamber bottom of the switchgear housing two magnetic support areas with different elastic suspension for Storage of the magnetic yoke are present.

Gattungsgemäße Schaltgeräte-Gehäuse sind bei handelsüblichen Schützen bekannt. Hier ist das Magnetjoch des Magnetsystems auf einem harten und einem dazu relativ weichen Auflagepunkt gelagert, um Stoßschwingungsprozesse wie sie beim Schließen eines Wechselstrom-Magneten infolge relativ hoher Schließgeschwindigkeiten auftreten möglichst gut zu dämpfen. Aufgrund der Stoßschwingungen kann der Magnetanker mit dem Kontakttrager in die Stellung "AUS" zurückprallen. Dieses Problem versuchte man bisher durch die zwei unterschiedlich gefederten Auflagepunkte zu lösen, mit denen die translatorische Bewegung zum Teil in eine rotatorische umgelenkt wird.Generic switchgear housings are available in standard Protect known. Here is the magnetic yoke of the magnet system on a hard and a relatively soft support point stored to shock processes such as when closing of an AC magnet due to relatively high closing speeds dampen occur as well as possible. Because of the magnetic vibrations can contact the contact carrier rebound into the "OFF" position. This problem So far one has tried through the two differently sprung ones To solve support points with which the translational Movement is partially redirected into a rotary.

Der Erfindung liegt die Aufgabe zugrunde, ein Schaltgerate-Gehause der obengenannten Art derart auszubilden, daß ein Zurückprallen des Magnetankers auf einfache und zugleich effektive Weise gemindert wird.The invention has for its object a switchgear housing of the above type in such a way that a Bouncing back of the magnet armature on simple and at the same time effectively diminished.

Die Aufgabe wird dadurch gelöst, daß der Magnetkammer-Boden schwingfähig ausgebildet ist und auf seiner dem Innenraum des Schaltgeräte-Gehäuses zugewandten Fläche einen Auflagestreifen aufweist, dessen Enden als Magnet-Auflagebereiche dienen, wobei ein erster Magnet-Auflagebereich an dem einen Ende ausschließlich von Magnetkammer-Boden gehalten ist.The object is achieved in that the magnetic chamber floor is designed to vibrate and on its the interior of the Switching device housing facing surface a support strip has, the ends of which serve as magnetic support areas, a first magnet support area at one end only is held by magnetic chamber floor.

Vorteilhafte Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen. Advantageous developments of the invention are the subclaims refer to.

Es ist besonders vorteilhaft, wenn der zweite Magnet-Auflagebereich mit geschlossenen Rahmenprofilen verrippt ist, da hiermit in einfacher Weise ein hart federnder Magnet-Auflagebereich realisiert wird. Wenn zwischen dem Magnetjoch und dem Auflagestreifen ein Einlagegummi eingelegt ist, läßt sich hiermit abhängig von der Höhe des Auflagestreifens besonders die Federeigenschaft des weichen Magnet-Auflagebereichs beeinflussen.It is particularly advantageous if the second magnet support area is ribbed with closed frame profiles, because hereby a hard resilient magnetic support area in a simple manner is realized. If between the magnetic yoke and the Support strip an insert rubber is inserted, can hereby especially depending on the height of the support strip influence the spring properties of the soft magnetic contact area.

Probleme mit Kriech- und Luftstrecken zwischen dem Magnetsystem und der als Montage dienenden Unterseite des Schaltgeräte-Gehäuses werden dadurch ausgeschlossen, daß der Magnetkammer-Boden geschlossen ist.Problems with creepage and air gaps between the magnet system and the underside of the switchgear housing serving as assembly are excluded by the fact that the Magnetic chamber floor is closed.

Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand einer Zeichnung näher erläutert. Es zeigen:

FIG 1
eine Explosionsdarstellung eines Magnetsystems in einem Schützgehause,
FIG 2
eine Unteransicht eines perspektivisch dargestellten Schützgehäuses mit einem Magnetkammer-Boden,
FIG 3
eine Innenansicht des Schutzgehäuses nach FIG 2 mit dem Magnetkammer-Boden in perspektivischer Darstellung,
FIG 4
eine prinzipielle Darstellung der Federkennlinie des Magnetkammer-Bodens und
FIG 5, 6, 7
Queransichten von unterschiedlich ausgeführten Auflagestreifen.
An embodiment of the invention is explained below with reference to a drawing. Show it:
FIG. 1
an exploded view of a magnet system in a contactor housing,
FIG 2
1 shows a bottom view of a contactor housing with a magnetic chamber bottom, shown in perspective,
FIG 3
3 shows an interior view of the protective housing according to FIG. 2 with the magnetic chamber base in a perspective view,
FIG 4
a basic representation of the spring characteristic of the magnetic chamber bottom and
5, 6, 7
Cross views of differently designed support strips.

FIG 1 zeigt ein Schaltgeräte-Gehäuse 1 mit einem Wechselstrom-Magnetsystem für ein elektromagnetisches Schaltgerät. Im vorliegenden Fall handelt es sich um das Gehäuse 1 eines Schutzes 2, in dessen Magnetkammer 3 das Magnetsystem untergebracht ist. Dieses besteht im wesentlichen aus einem Magnetjoch 4, einem Magnetanker 5, einer Spule 6 mit Spulenanschlüssen, einem Kontaktträger 7 und einer Kegelfeder 8. Das Magnetsystem ist mit seinem Magnetjoch 4 am Magnetkammer-Boden 9 des Schützgehäuses 1 unter Zwischenlage eines Einlagegummis 10 gelagert. Der Magnetkammer-Boden 9 ist dabei mit zwei hier nicht dargestellten, unterschiedlich stark federnden Magnet-Auflagebereichen 11,12 ausgebildet. Der eine Magnet-Auflagebereich 11 weist eine weiche, der andere 12 eine relativ harte Federung auf (siehe FIG 3).1 shows a switchgear housing 1 with an alternating current magnet system for an electromagnetic switching device. In the present case, the housing 1 is one Protection 2, in the magnetic chamber 3 housed the magnet system is. This essentially consists of a magnetic yoke 4, a magnet armature 5, a coil 6 with coil connections, a contact carrier 7 and a conical spring 8. Das Magnet system is with its magnetic yoke 4 on the bottom of the magnetic chamber 9 of the contactor housing 1 with the interposition of an insert rubber 10 stored. The magnetic chamber base 9 is included two not shown here, different resilience Magnet support areas 11, 12 formed. The one magnetic support area 11 has a soft, the other 12 a relatively hard suspension (see FIG 3).

In FIG 2 ist die Unterseite des Schützgehäuses 1 mit dem geschlossenen Magnetkammer-Boden 9 und Rahmenprofilen 15 gezeigt. FIG 3 zeigt eine Innenansicht des Schützgehäuses 1 mit dem Magnetkammer-Boden 9. Die Magnet-Auflagebereiche 11,12 sind an der Innenseite des Magnetkammer-Bodens 9 als Auflagestreifen ausgebildet, dessen eines Ende allseitig vom Magnetkammer-Boden 9 umschlossen ist und dessen anderes Ende in einen breiten, verstärkten Bereich 13 übergeht. Diese beiden Enden dienen als Magnet-Auflagebereiche 11,12 mit der bereits erwähnten weichen und harten Federung. Vier am Magnetkammer-Boden 9 hervorstehende Rippen 14 dienen zur seitlichen Führung des Magnetjochs 4. Der Magnetkammer-Boden 9 ist relativ dünnwandig ausgeführt. Der weiche Magnet-Auflagebereich 11 des Auflagestreifens ist allseitig vom Magnetkammer-Boden 9 umgeben, der andererseits mit möglichst großen Abstand an den Wänden des Schützgehäuses 1 angebunden ist. Der andere, harte Magnet-Auflagebereich 12 ist mit geschlossenen Rahmenprofilen 15 gemäß FIG 2 verrippt. Durch den breiten Bereich 13 ist auf der harten Auflageseite für das Magnetjoch 4 eine breite Magnetauflage gegeben, während auf der weichen Auflageseite eine schmale nicht ganz durchgängige Magnetauflage vorhanden ist.2 shows the underside of the contactor housing 1 with the closed Magnetic chamber floor 9 and frame profiles 15 shown. 3 shows an interior view of the contactor housing 1 with the magnetic chamber base 9. The magnetic support areas 11, 12 are on the inside of the magnetic chamber base 9 as a support strip formed, one end of the magnet chamber floor on all sides 9 is enclosed and its other end in passes over a wide, reinforced area 13. These two Ends serve as magnetic support areas 11, 12 with the already mentioned soft and hard suspension. Four on the bottom of the magnetic chamber 9 projecting ribs 14 serve for lateral guidance of the magnetic yoke 4. The magnetic chamber bottom 9 is relative thin-walled. The soft magnetic support area 11 of the support strip is on all sides of the magnetic chamber bottom 9 surrounded, on the other hand with the greatest possible distance to the Walls of the contactor housing 1 is connected. The other, hard Magnet support area 12 is with closed frame profiles 15 ribbed according to FIG 2. Through the wide area 13 is on the hard support side for the magnetic yoke 4 a wide magnetic support given, while on the soft support side narrow, not completely continuous magnetic support is available.

Das oben beschriebene Schützgehäuse 1 ist durch die besondere Ausbildung des Magnetkammer-Bodens 9 rückpralloptimiert. Dies bedeutet, daß die Stoßschwingprozesse, die sich aufgrund der relativ hohen Schließgeschwindigkeit beim Schließen eines Wechselstrom-Magneten ergeben, außerordentlich gut abgefedert werden, ohne daß dabei der Magnetanker 5 mit dem Kontaktträger 7 (siehe FIG 1) nennenswert in die Stellung "AUS" zurückprallt.The contactor housing 1 described above is special Training of the magnetic chamber base 9 rebound-optimized. This means that the shock processes that occur due to the relatively high closing speed when closing a AC magnets result in extremely well cushioned be without the magnet armature 5 with the contact carrier 7 (see FIG. 1) bounces back to the "OFF" position.

Der Magnetkammer-Boden 9 ist nach unten vollkommen geschlossen, womit eventuelle Probleme mit Kriech- und Luftstrecken zwischen der Spule 6 und der als Montageebene verwendeten Unterseite des Schützgehäuses 1 von vornherein ausgeschlossen werden.The magnetic chamber base 9 is completely closed at the bottom, with possible problems with creepage distances and clearances between the coil 6 and the underside used as the mounting level of the contactor housing 1 excluded from the outset become.

Die Wirkung des vorbeschriebenen Schützgehäuses 1 beruht auf folgenden technischen Maßnahmen. Der sehr dünne, allseitig angebundene Magnetkammer-Boden 9 hat mit dem weichen Auflagebereich 11 eine progressive Federkennlinie zur Folge. Hierdurch ist der durch das Schützgehäuse 1 bedingte Dämpfungsanteil nicht so stark temperatur- und feuchtigkeitsabhängig wie z.B. ein federnder Freiträger mit linearer Kennlinie. Vor allem liegt dies an der von der Temperatur und dem Feuchtigkeitsgehalt abhängigen Elastizitätseigenschaft des hierbei verwendeten Kunststoffs. Der Einlagegummi 10 hat folgenden Einfluß auf die dämpfende Wirkung. Er liegt im ruhenden Zustand, d.h. auf dem weichen Auflagebereich 11 auf und kommt nach dessen Durchfederung großflächig auf dem Magnetkammer-Boden 9 zur Auflage. In FIG 4 sind Federkennlinien 16, 17 zur Wiedergabe der Federeigenschaften des Magnetkammer-Bodens 9 dargestellt. Die unten liegenden Federkennlinien 16 zeigen prinzipiell die Wirkung bei Einlage eines Einlagegummis 10, die oberen Federkennlinien 17 bei Verzicht einer solchen Einlage. Die Federkennlinien 16, 17 haben zunächst einen relativ flachen Verlauf und steigen dann progressiv an, d.h. mit zunehmendem Federweg bzw. größerer Auslenkung wächst der Kraftbedarf überproportional.The effect of the above-described contactor housing 1 is based on following technical measures. The very thin, all around connected magnetic chamber floor 9 has with the soft support area 11 results in a progressive spring characteristic. Hereby is the damping component caused by the contactor housing 1 not so dependent on temperature and humidity such as. a resilient cantilever with linear characteristic. In front this is all due to the temperature and moisture content dependent elasticity property of this used plastic. The insert rubber 10 has the following Influence on the dampening effect. He is at rest, i.e. on the soft support area 11 and comes after its deflection over a large area on the magnetic chamber floor 9 to the edition. In FIG 4, spring characteristics 16, 17 are Representation of the spring properties of the magnetic chamber base 9 shown. The spring characteristic curves 16 below show in principle the effect when inserting an insert rubber 10, the upper spring characteristic curves 17 when such is not used Inlay. The spring characteristics 16, 17 initially have one relatively flat course and then increase progressively, i.e. with increasing travel or greater deflection, the Power consumption disproportionately.

Die im progressiven Bereich der Federkennlinien überproportional steigenden Dämpfungsanteile ergeben ein Dämpfungssystem, das den von der Betriebsspannung, dem Phasenwinkel, der Temperatur und weiteren Einflußparametern abhängigen Schließgeschwindigkeitsbereich sehr gut abdeckt. The disproportionate in the progressive range of spring characteristics increasing damping components result in a damping system, that of the operating voltage, the phase angle, the temperature and other influencing parameters Closing speed range very well covered.

Durch unterschiedliche Ausbildung des Auflagestreifens- hinsichtlich seiner Länge a, seiner Breite b und seiner Absatzhöhe h läßt sich die Federwirkung an die gewünschte Dämpfung anpassen. FIG 5, 6 und 7 zeigen unterschiedliche Ausbildungsmöglichkeiten. FIG 5 und 6 zeigen Ausführungen des Auflagestreifens mit unterschiedlicher Breite b. In FIG 7 ist der Auflagestreifen mit einem schrägen Übergang versehen.By different training of the support strip - with regard its length a, its width b and its heel height h the spring action can be adjusted to the desired damping to adjust. 5, 6 and 7 show different training options. 5 and 6 show versions of the support strip with different widths b. 7 is the Provide the support strip with an oblique transition.

Obwohl die vorliegende Erfindung unter Bezugnahme auf die in der beigefügten Zeichnung dargestellte Ausführungsform erläutert ist, sollte berücksichtigt werden, daß damit nicht beabsichtigt ist, die Erfindung nur auf die dargestellte Ausführungsform zu beschränken, sondern alle möglichen Änderungen, Modifizierungen und äquivalente Anordnungen, soweit sie vom Inhalt der Patentansprüche gedeckt sind, einzuschließen.Although the present invention with reference to the in of the accompanying drawing illustrated embodiment is, it should be borne in mind that this is not intended is, the invention only to the illustrated embodiment to limit, but all possible changes, Modifications and equivalent arrangements insofar as they are from Contents of the claims are covered.

Claims (8)

  1. Switchgear housing (1) for an electromagnetic switchgear (2) which has a magnetic chamber (3) with a magnet yoke (4) and a magnet armature (5), wherein at the magnetic-chamber base (9) of the switchgear housing (1) there are two magnet-supporting areas (11, 12) with variable elastic resilience for mounting the magnet yoke (4), characterized in that the magnetic-chamber base (9) is constructed so that it is capable of vibrating and, on its surface facing the interior of the switchgear housing (1), has a supporting strip, the ends of which are used as magnet-supporting areas (11, 12), wherein a first magnet-supporting area (11) is retained at the one end exclusively by way of the magnetic-chamber base (9).
  2. Switchgear housing according to claim 1, characterized in that the other end of the supporting strip has a second magnet-supporting area (12) with a rigidity which is increased compared with the remaining part of the supporting strip.
  3. Switchgear housing according to claim 1 or 2, characterized in that the second magnet-supporting area (12) is ribbed with enclosed frame profiles (15).
  4. Switchgear housing according to one of the preceding claims, characterized in that an insert rubber (10) is inserted between the magnet yoke (4) and the supporting strip.
  5. Switchgear housing according to one of the preceding claims, characterized in that the magnetic-chamber base (9) is enclosed.
  6. Switchgear housing according to one of the preceding claims, characterized in that the soft supporting area (11) has a progressive spring characteristic.
  7. Switchgear housing according to one of the preceding claims, characterized in that the damping property of the magnetic-chamber base (9) is adjustable by the length, width and height of the supporting strip.
  8. Switchgear housing according to one of the preceding claims, characterized in that the fine adjustment is also achieved by a special shaping, for example by a sloping transition.
EP96945156A 1995-10-12 1996-10-10 Housing for switchgears Expired - Lifetime EP0855085B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19538056 1995-10-12
DE19538056 1995-10-12
DE19638142 1996-09-18
DE19638142 1996-09-18
PCT/DE1996/001933 WO1997014166A2 (en) 1995-10-12 1996-10-10 Housing for switchgears

Publications (2)

Publication Number Publication Date
EP0855085A2 EP0855085A2 (en) 1998-07-29
EP0855085B1 true EP0855085B1 (en) 1999-04-21

Family

ID=26019447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96945156A Expired - Lifetime EP0855085B1 (en) 1995-10-12 1996-10-10 Housing for switchgears

Country Status (4)

Country Link
US (1) US6583695B1 (en)
EP (1) EP0855085B1 (en)
DE (1) DE59601735D1 (en)
WO (1) WO1997014166A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011009694A1 (en) 2009-07-22 2011-01-27 Siemens Aktiengesellschaft Switchgear having a damper arrangement
DE102009034611A1 (en) 2009-07-27 2011-02-03 Siemens Aktiengesellschaft Switching device with damping arrangement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732963C2 (en) * 1977-07-21 1982-10-21 Starkstrom Gummersbach GmbH, 5277 Marienheide Contactor
US4647886A (en) * 1985-04-09 1987-03-03 Square D Company Coil apparatus for electromagnetic contactor
DE4123369A1 (en) 1991-07-15 1993-04-08 Oppach Schaltelektronik EM switching unit with contact bounce prevention - has bridging compact mounted on elastic pad relative to armature supported on core with elastic mount
JPH07182961A (en) 1993-12-22 1995-07-21 Fuji Electric Co Ltd Iron core holding structure for electromagnetic contactor
US5623239A (en) * 1996-01-17 1997-04-22 Furnas Electric Co. Electrical contactor spring

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011009694A1 (en) 2009-07-22 2011-01-27 Siemens Aktiengesellschaft Switchgear having a damper arrangement
DE102009034247A1 (en) 2009-07-22 2011-03-03 Siemens Aktiengesellschaft Switching device with damping arrangement
DE102009034247B4 (en) * 2009-07-22 2015-02-12 Siemens Aktiengesellschaft Switching device with damping arrangement
DE102009034611A1 (en) 2009-07-27 2011-02-03 Siemens Aktiengesellschaft Switching device with damping arrangement

Also Published As

Publication number Publication date
EP0855085A2 (en) 1998-07-29
WO1997014166A2 (en) 1997-04-17
US6583695B1 (en) 2003-06-24
WO1997014166A3 (en) 1997-10-30
DE59601735D1 (en) 1999-05-27

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