EP1644950A1 - Appareil de commutation electromagnetique - Google Patents

Appareil de commutation electromagnetique

Info

Publication number
EP1644950A1
EP1644950A1 EP04736305A EP04736305A EP1644950A1 EP 1644950 A1 EP1644950 A1 EP 1644950A1 EP 04736305 A EP04736305 A EP 04736305A EP 04736305 A EP04736305 A EP 04736305A EP 1644950 A1 EP1644950 A1 EP 1644950A1
Authority
EP
European Patent Office
Prior art keywords
switching device
yoke
armature
drive coil
housing
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.)
Withdrawn
Application number
EP04736305A
Other languages
German (de)
English (en)
Inventor
Reinhard Maier
Erich Zerbian
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
Original Assignee
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 EP1644950A1 publication Critical patent/EP1644950A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/124—Guiding or setting position of armatures, e.g. retaining armatures in their end position by mechanical latch, e.g. detent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1638—Armatures not entering the winding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
    • H01H2047/046—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current with measuring of the magnetic field, e.g. of the magnetic flux, for the control of coil current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H2050/166—Magnetic circuit arrangements wherein the magnetic circuit parts are molded in a magnetic plastic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays

Definitions

  • the present invention relates to an electromagnetic switching device, in particular a contactor or a circuit breaker, with a housing, a drive coil, a yoke, an armature and at least one contact,
  • the drive coil, the yoke, the armature and the at least one contact are mounted in the housing,
  • the drive coil, the yoke and the armature are inductively coupled to one another, so that the armature can be deflected into a tightening position by applying a pulling current to the drive coil, - the contact can be actuated directly or indirectly by deflecting the armature into the tightening position.
  • each contactor and each circuit breaker is constructed in this way.
  • Electromagnetic switching devices such as circuit breakers and contactors contain magnetic drives that consist of a coil, a yoke and an armature.
  • the yoke and armature consist of magnetizable material, e.g. B. from sheet iron. If a current is applied to the coil, a magnetic flux is generated in the yoke, which exerts a force on the armature and attracts it. The armature is thus deflected into a tightening position.
  • the yoke and the armature consist of iron sheet packets which are produced from individual sheets which are connected to one another, for example by rivets.
  • the production from individual, mutually insulated sheets is necessary in particular to avoid eddy currents and associated eddy current losses.
  • the sheet metal As a result of the sheet metal, only limited freedom of form is possible and that the sheet metal can only be connected to the housing and actuating elements with appropriate fastening elements.
  • the coil must also be connected to the housing or the yoke by a separate coil holder.
  • the life of the magnet system is limited by the collision of the yoke and armature in the prior art.
  • the yoke and the armature prefferably have any three-dimensional structures, which would enable the magnetic circuit to be optimally designed.
  • the yoke, the drive coil and the housing should also be easily and inexpensively connectable, in particular without additional fasteners.
  • the lifespan of the magnet system should be as long as the mechanical lifespan of the switching device. The object of the present invention is to provide an electromagnetic switching device which combines these advantages.
  • the yoke and / or the armature contains or contain powder magnetic material. Because this at least ensures that eddy currents can be reduced to almost zero and any design of yoke and armature is possible.
  • the yoke is cast with the drive coil and / or the housing, preferably by means of a casting compound, which may be uniform. This enables a simple, stable, permanent and, in particular, inexpensive connection of the yoke to the drive coil and / or the housing.
  • the potting compound is preferably permanently elastic.
  • the powder magnetic material can be a sintered material, for example.
  • the powder magnetic material with a plastic mass, for. B. epoxy resin is mixed.
  • the powder magnetic material surrounds a soft iron core, a highly permeable material and / or a permanent magnet, targeted flux guidance and / or bistable switching behavior can be achieved in a simple manner.
  • a sensor is arranged in the housing and is inductively coupled to a conductor connected to the contact via a coupling element containing powder magnetic material, a sensor signal representative of the actual current flow through the conductor can be determined in a simple manner.
  • the sensor can alternatively be designed as a magnetic field sensor or as a flux change sensor. If the sensor and the coupling element are potted together, the connection of the sensor to the coupling element is particularly permanent and stable.
  • a contactor has a drive coil 1 as an example of an electromagnetic switching device.
  • the drive coil 1 is inductively coupled to a yoke 2 and an armature 3.
  • the armature 3 is, as in FIG. 1
  • the drive coil 1, the yoke 2, the armature 3 and the contact 4 and the conductor 5 are mounted in a lower housing part 6.
  • the lower housing part 6 is detachably connected to an upper housing part 7 via fastening elements 8 which are only shown schematically in FIG.
  • the lower housing part 6 and the upper housing part 7 together form a housing 6. 1 of the electromagnetic switching device.
  • the structure described above for a contactor also applies in principle to the switching device being designed as a circuit breaker.
  • the drive coil 1 goes from one to the other current flows through and a deflection of the armature 3 does not directly close a contact 4, but rather opens it indirectly by actuating a switch lock.
  • the electrical connection between the conductors 5 is interrupted by the deflection of the armature 3.
  • the yoke 2 is manufactured in advance - see FIG. 2. It consists of powder magnetic material 9 or contains such material 9.
  • the powder magnetic material 9 can, for. B. sintered material.
  • the powder magnetic material 9 can also be a metallic powder, which with a plastic mass, for. B. epoxy resin is mixed.
  • the yoke 2 can contain further elements 10, 11.
  • the yoke 2 can contain a permanent magnet 10. This enables, for example, a bistable switching behavior of the switching device.
  • the yoke 2 can also contain a soft iron core 11 or another highly permeable material. In this case, there is a targeted flow guidance of the magnetic field in the yoke 2.
  • the elements 10, 11 are surrounded by the powder magnetic material 9 on at least two sides, preferably at least four sides, possibly even on all sides.
  • the drive coil 1 is loosely applied to the yoke 2 - see FIG. 3.
  • the drive coil 1 and the yoke 2 are then - see FIG. 4 - cast together using a permanently elastic casting compound 12.
  • the block of potting compound 12 is finally - see FIG 5 - cast with a hard casting material 13.
  • the hard cast material 13 forms at least part of the lower housing part 6.
  • the casting with the hard casting material 13 also creates an intimate connection between the lower housing part 6, the yoke 2 and the drive coil 1 via the permanently elastic casting compound 12.
  • the driving coil 1, the yoke 2 and the lower housing part 6 are thus uniform with one another by means of the casting compound 12 shed.
  • the fastening elements 8 for connecting the lower housing part 6 to the upper housing part 7 are arranged in the cast material 13 on the side of the lower housing part 6. Further fastening elements 14 are also arranged in the cast material 13. By means of these fastening elements 14, the lower housing part 6 can be connected to a fastening surface 15, which is only indicated schematically in FIG.
  • FIG. 6 shows an addition to the switching device of FIGS. 1 to 5.
  • a sensor 16 is arranged in the housing 6 + 7.
  • the sensor 16 is inductively coupled to one of the conductors 5 via a coupling element 17.
  • the coupling element 17 contains powder magnetic material 9 or preferably even consists of such material. A sensor signal that is representative of the current flow through the conductor 5 can thus be detected directly by means of the sensor 16.
  • the senor 15 can be designed, for example, as a coil 16.
  • sensor 16 is a flow change sensor. It can therefore only be used with alternating voltages or to detect a switching operation as such.
  • the sensor 16 can also be used as a magnetic field sensor, e.g. B. as a Hall sensor. In this case the magnetic field as such and thus the current flow in the conductor 5 can be detected by means of the sensor 16.
  • the sensor 16 with the coupling element 17 is preferably also cast, as indicated schematically in FIG.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)

Abstract

Une bobine d'entraînement (1), une culasse (2), un induit (3) et au moins un contact (4) sont montés dans le boîtier (6+7) d'un appareil de commutation. La bobine d'entraînement (1), la culasse (2) et l'induit (3) sont couplés les uns avec les autres de manière inductive, si bien que lorsque qu'un courant d'actionnement (I) est appliqué à la bobine d'entraînement (1), l'induit (3) peut être dévié dans une position d'action, le contact (4) étant ainsi directement ou indirectement actionné. La culasse (2) et / ou l'induit (3) contiennent de la matière magnétique pulvérulente (9).
EP04736305A 2003-07-10 2004-06-08 Appareil de commutation electromagnetique Withdrawn EP1644950A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10331339A DE10331339A1 (de) 2003-07-10 2003-07-10 Elektromagnetisches Schaltgerät
PCT/EP2004/006183 WO2005006371A1 (fr) 2003-07-10 2004-06-08 Appareil de commutation electromagnetique

Publications (1)

Publication Number Publication Date
EP1644950A1 true EP1644950A1 (fr) 2006-04-12

Family

ID=33560038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04736305A Withdrawn EP1644950A1 (fr) 2003-07-10 2004-06-08 Appareil de commutation electromagnetique

Country Status (5)

Country Link
US (1) US7696846B2 (fr)
EP (1) EP1644950A1 (fr)
CN (1) CN100461324C (fr)
DE (1) DE10331339A1 (fr)
WO (1) WO2005006371A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1892739A1 (fr) 2006-08-25 2008-02-27 Siemens Aktiengesellschaft Unité d'entraînement électromagnétique et appareil de commutation électromécanique
EP2034498B1 (fr) 2007-09-04 2013-11-13 Siemens Aktiengesellschaft Appareil de commutation électromagnétique
DE102010017872B4 (de) * 2010-04-21 2012-06-06 Saia-Burgess Dresden Gmbh Bistabiles Kleinrelais großer Leistung
DE102012217080A1 (de) * 2012-09-21 2014-03-27 Siemens Ag Elektromagnetisches Schaltschütz
CN105304407B (zh) * 2015-11-11 2018-05-15 上海科勒电子科技有限公司 一种控制磁性开关的系统和方法
CN113866265A (zh) * 2021-08-20 2021-12-31 北京工业大学 一种电磁铁式横波电磁声换能器

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959758A (en) * 1973-12-07 1976-05-25 International Standard Electric Corporation Magnetically actuated switching device
DE3942542A1 (de) * 1989-12-22 1991-06-27 Lungu Cornelius Bistabiler magnetantrieb mit permanentmagnetischem hubanker
US5580396A (en) * 1990-07-02 1996-12-03 Centre National De La Recherche Scientifique (Cnrs) Treatment of pulverant magnetic materials and products thus obtained
JP3112024B2 (ja) * 1990-09-20 2000-11-27 日本電気株式会社 電磁継電器のコイル封止体
JPH04248219A (ja) * 1991-01-09 1992-09-03 Hitachi Electron Eng Co Ltd リードリレーの安定化構造
AU660008B2 (en) * 1991-03-21 1995-06-08 Eaton Corporation Molded magnetic contactors
CN2083330U (zh) * 1991-03-27 1991-08-21 温州市低压开关厂 电磁开关
DE4129265A1 (de) * 1991-08-30 1993-03-04 Mannesmann Ag Elektromagnetisches schaltgeraet
CN2113548U (zh) * 1992-03-07 1992-08-19 柯杏烽 电磁开关
US5243313A (en) * 1992-09-16 1993-09-07 Westinghouse Electric Corp. Tractive magnet with asymmetric permanent air gap
GB2278959A (en) * 1993-05-29 1994-12-14 Richard David Harwood Bistable latching solenoid actuator
WO1995008180A1 (fr) * 1993-09-17 1995-03-23 Omron Corporation Relai electromagnetique et sa fabrication
DE19506168A1 (de) * 1995-02-22 1996-08-29 Siemens Ag Einrichtung zur Schaltzustandserkennung von Schützen
DE29506744U1 (de) * 1995-04-20 1995-07-13 Bürkert Werke GmbH & Co., 74653 Ingelfingen Elektromagneteinheit für ein Magnetventil
DE19700521C2 (de) * 1997-01-09 1998-10-15 Siemens Ag Kommunikationsfähiges Schütz mit elektronisch gesteuertem Antrieb
CN2317545Y (zh) * 1997-08-08 1999-05-05 郑春开 电磁开关
DE19735271C2 (de) * 1997-08-14 2000-05-04 Bosch Gmbh Robert Weichmagnetischer, formbarer Verbundwerkstoff und Verfahren zu dessen Herstellung
DE19822515C2 (de) * 1998-05-19 2000-07-06 Siemens Ag Abschirmung für Summenstrom-Wandleranordnung für Fehlerstrom-Schutzschalter
FR2792108B1 (fr) * 1999-04-12 2001-05-04 Schneider Electric Sa Electroaimant a courant continu
EP1234316B1 (fr) * 1999-12-03 2004-10-20 Siemens Aktiengesellschaft Appareil de commutation electromagnetique a commande asservie et procede et circuit correspondants
AT412433B (de) * 2000-05-11 2005-02-25 Felten & Guilleaume Kg Elektromechanischer fernschalter
FR2809860B1 (fr) * 2000-05-31 2002-07-19 Schneider Electric Ind Sa Electroaimant avec bobine amovible
DE10031923A1 (de) * 2000-06-30 2002-01-17 Bosch Gmbh Robert Weichmagnetischer Werkstoff mit heterogenem Gefügebau und Verfahren zu dessen Herstellung
DE10126854A1 (de) * 2001-06-01 2002-12-19 Siemens Ag Magnetjoch eines elektromagnetischen Auslösers
DE10202476B4 (de) * 2002-01-23 2005-09-29 Tyco Electronics Belgium Ec N.V. Elektromagnetische Spule mit Rechteckform

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005006371A1 *

Also Published As

Publication number Publication date
DE10331339A1 (de) 2005-02-03
WO2005006371A1 (fr) 2005-01-20
US20060192643A1 (en) 2006-08-31
CN100461324C (zh) 2009-02-11
US7696846B2 (en) 2010-04-13
CN1816888A (zh) 2006-08-09

Similar Documents

Publication Publication Date Title
DE69119073T2 (de) Solenoid betätigte schaltvorrichtung
DE3853730T2 (de) Elektromagnetisches Schütz mit Steuerkreis für die Versorgung der Beschleunigungs-, Landungs- und Greiffunktion.
DE1267309B (de) Elektrisches Schuetz, bei dem Kontaktbruecke und Festkontakte als Baueinheit ausgebildet sind
WO2013144232A1 (fr) Relais comportant deux commutateurs agissant de façon opposée l'un par rapport à l'autre
DE2461884B2 (de) Elektromagnetisches schaltgeraet
DE3940242A1 (de) Betaetigungssolenoid
WO2005006371A1 (fr) Appareil de commutation electromagnetique
DE60223566T2 (de) Bistabiler magnetischer aktuator
EP0114231A1 (fr) Dispositif de protection contre la surintensité
DE10140559A1 (de) Elektromagnetanordnung für einen Schalter
DE3125712A1 (de) Elektrischer schalter
DE1935955A1 (de) Elektromagnetisches Relais
DE102007030391A1 (de) Herstellungsverfahren für einen Stößel und derartiger Stößel
DE4445169C2 (de) Tauchankermagnetsystem
WO1980000048A1 (fr) Contact electrique protege contre la poussiere
DE1250909B (fr)
DE10239284B4 (de) Elektromagnetisches Relais mit nichtlinearem Kraft-Weg-Verhalten der Kontaktfeder und Kontaktfeder
DE19702818A1 (de) Schaltanordnung zum Verbinden bzw. Trennen zweier Teilstrecken einer elektrischen Leitung
EP0068391A2 (fr) Relais electromagnétique polarisé miniaturisé
DE102012106330A1 (de) Spulenkern für elektromagnetischen Antrieb und selbiger sowie Verfahren zu dessen Herstellung
DE2304775B2 (de) Bistabiler, elektromagnetisch steuerbarer Schutzrohrschalter
DE1132227B (de) Trenn- und Schutzschalter, insbesondere Fehlerstromschutzschalter
EP0068280B1 (fr) Dispositif de contact électrique à commande magnétique
DE2457145C3 (de) Elektromagnetischer Koordinaten-Wähler
DE9213237U1 (de) Magnetsystem

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20051222

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR

17Q First examination report despatched

Effective date: 20081111

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20130103