EP0211446B1 - Relais électromagnétique à deux armatures - Google Patents

Relais électromagnétique à deux armatures Download PDF

Info

Publication number
EP0211446B1
EP0211446B1 EP86111088A EP86111088A EP0211446B1 EP 0211446 B1 EP0211446 B1 EP 0211446B1 EP 86111088 A EP86111088 A EP 86111088A EP 86111088 A EP86111088 A EP 86111088A EP 0211446 B1 EP0211446 B1 EP 0211446B1
Authority
EP
European Patent Office
Prior art keywords
contact
contacts
case
armatures
coil
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
Application number
EP86111088A
Other languages
German (de)
English (en)
Other versions
EP0211446A1 (fr
Inventor
Josef Kern
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
Priority to AT86111088T priority Critical patent/ATE48049T1/de
Publication of EP0211446A1 publication Critical patent/EP0211446A1/fr
Application granted granted Critical
Publication of EP0211446B1 publication Critical patent/EP0211446B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/20—Non-polarised relays with two or more independent armatures
    • 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

Definitions

  • the invention relates to an electromagnetic relay with a coil with a bobbin, winding and axially continuous core, the axis of which is parallel to the mounting plane, further with a yoke arranged next to the coil and parallel to the axis thereof and with two flat armatures, one of which is attached to one
  • the coil end is arranged perpendicular to the coil axis and is supported at each yoke end and forms a working air gap with one end of the core, each armature carrying a contact piece via a contact spring and each having an extension, which extends beyond the bearing point, for attacking return spring means.
  • Such a relay is known from FR-A 783 822.
  • the contact springs of the two anchors are angled at an angle such that they work together with a common center contact element.
  • the contact springs themselves also each have a connection to an associated connection element via a flexible conductor element.
  • the armature is reset separately for each armature using its own return spring device, which can be individually adjusted with a special device.
  • a similarly constructed relay with two armatures is also known from FR-A-204 870.
  • the advantage of the double working air gap is used to independently operate a separate changeover contact with each armature.
  • the center contact piece is attached directly to the rigid armature, while the counter-contact elements are anchored in a base.
  • the two armatures or their contact pieces are insulated from one another by an insulating intermediate layer, so that the two circuits of the changeover contacts are independent of one another.
  • the object of the invention is to develop a relay with two armatures of the type mentioned in such a way that it can be used in safety circuits, the tendency to weld being considerably reduced and, moreover, ensuring that the circuit is still reliably opened when a contact is welded.
  • each armature interacts via its associated contact piece with a mating contact element having a connection, that the contact pieces of the two armatures are connected to one another via a flexible electrical conductor element, that the two armatures are each mounted on a bearing edge of the yoke and that the extensions of the two anchors are connected to each other behind the cutting edges via a common tension return spring.
  • the risk of welding of two contacts which can be connected in series is significantly reduced.
  • the common spring gives both anchors the same restoring force. Should one of the two anchors no longer fall off due to the welding of its contact, the other anchor receives an even greater restoring force due to the tensioned return spring and therefore falls off all the more safely.
  • the use of two electrically connected contacts in a two-arm relay is also particularly advantageous because the magnetic properties of the two-arm relay are additionally exploited here. Since the two working air gaps are simultaneously reduced when the two anchors are pulled out of the idle state, the attraction increases disproportionately compared to the attraction of a single anchor, as a result of which the switching speed is particularly high at the moment the two contacts are closed, so that the tendency to weld is additionally reduced. This is particularly important for applications in motor vehicles or similar battery-powered systems. With the contacts connected in series, the load current only flows when both armatures are already close to the pole face, i.e. the two air gaps have already become very small and become almost zero.
  • the two anchors are fully tightened to the core pole surface even if the battery voltage should collapse due to the closing of the contacts and the flow of a large load current. This also helps to avoid a floating state when the contacts are closed, which in most cases would lead to the welding of a contact. Since the relay winding is designed in such a way that the required attraction or the required force for two dropped armatures Flux are generated, the relay according to the invention results in a very favorable ratio of response voltage and pull-through voltage, so that in the last part of the tightening movement a very fast tightening of the armature is made possible with the application of high contact forces.
  • the described advantages of the relay according to the invention are particularly effective when both contacts of the relay are designed as make contacts.
  • the closing of the contacts goes hand in hand with the tightening of the two anchors, whereby the largest magnetic forces are also converted into correspondingly large contact forces when the anchors are tightened.
  • the two contacts of the relay can also be designed as openers, which open independently of one another when welded.
  • the associated armature is also retained when a contact is welded, so that the magnetic circuit can no longer be closed completely. If the relay is designed accordingly, the second armature can still pull in and interrupt the series circuit via the second break contact.
  • a copper wire connecting the two make or break contacts is provided with an additional connection element of its own.
  • the relay according to the invention cannot usefully be operated with changeover contacts, since when one contact is welded, a bridging between the two switched circuits would occur via the electrical connection of the two movable contact elements.
  • a mating contact element in the manner of changeover contacts to the respectively unused switching position of the armature or the movable contact piece.
  • These additional mating contact elements are then expediently not used for switching a second circuit, but only for monitoring.
  • a logical link could be used to determine, for example, if one of the contacts is welded.
  • the electrical conductor element is a strand of copper or a similarly highly conductive material which is welded directly onto the two contact pieces. This means that a high load current can be conducted between the two contacts without the risk of excessive heating.
  • the contact spring generating the contact pressure on the respective armature can then be made from an optimal spring material, for example spring steel, which does not have to have very good electrical conductivity.
  • the coil former expediently serves as a carrier for the functional elements of the relay.
  • the two coil former flanges can each have recesses for the plug-in fastening of the yoke, and further recesses for holding the copper strand.
  • the coil flanges expediently each have recesses for the plug-in fastening of the mating contact elements.
  • the relay shown in FIGS. 1 and 2 has a coil former 1 with a core 2 pressed into an axial through-bore and having two pole faces 3 and 4 at its ends.
  • the coil former has two flanges 5 and 6, between which a winding 7 is applied.
  • the coil formed by coil former 1, core 2 and winding 7 is arranged with its axis parallel to an installation plane on a flat base 8, which forms a housing with a cap 9.
  • the two housing parts can be welded, for example, with ultrasound.
  • the magnetic circuit of the relay has a flat flux plate or yoke 11, which is arranged essentially perpendicular to the installation plane next to the coil and is fixed in recesses 12 of the coil body flanges 5 and 6 by insertion. Extensions 13 of the yoke 11 are also anchored in the base 8. At both ends, the flux plate has bearing edges 14 and 15, on which an anchor 16 and 17 is mounted. To the anchor against lateral displacement on the bearing To secure cutting, the yoke is provided in the usual way with incisions 18 or projections 19.
  • Each anchor has an extension 16a or 17a in the area behind the bearing cutting edge, and on these two extensions a common return spring 20, which is under tension, engages and the two anchors with the same restoring force in their rest position, ie in the dropped position , pulls.
  • a contact spring 21 or 22 is attached to each of the two anchors, which carries a contact piece 23 or 24. Both contact pieces are connected to one another via a copper braid 25 which is guided around the outside of the two armatures and is connected at its ends directly to the relevant contact piece 23 or 24 through a recess in the contact spring 21 or 22. As a result, a possibly high switching current is not conducted via the contact springs made of spring steel or via the armatures.
  • two fixed mating contact elements 26 and 27 are anchored in recesses 5a and 6a of the bobbin flanges 5 and 6, respectively, by insertion. They each have molded pins or plugs, e.g. B. 26a, which are guided through the base 8. Below the winding 7 there is still space for additional components 28, such as diodes or resistors, on the base.
  • FIGS. 3 and 4 show a slightly modified form of the relay.
  • the same parts as in FIGS. 1 and 2 are also provided with the same reference numerals.
  • the only difference from the first example is the design and arrangement of the contacts.
  • the two contact springs 21 and 22 now carry outwardly directed contact pieces 33 and 34, which interact with counter-contact elements 36 and 37.
  • the relay thus contains two break contacts, which form a series connection via the two armatures 16 and 17 in the idle state and which interrupt the circuit twice independently of one another when the relay is excited. Even when one NC contact is welded, the second armature can still pull in (although not with an optimally closed magnetic circuit) and interrupt the circuit.
  • FIGS. 5 and 6 A further modification is shown in FIGS. 5 and 6.
  • the two contact springs 21 and 22 are connected via a strand 35, which is also brought up to an additional plug connection 38.
  • the two break contact pieces 33 and 34 thus have an additional common connection and can therefore also be connected in parallel as a double break contact.
  • the operation of the relay is the same as in the previous examples.
  • the two contacts can be set with different contact spacing and equipped with different contact materials, so that one contact with weld-resistant material opens or closes last and thus draws the arc that may occur, while the other contact with a material with high conductivity carries most of the load current during operation, but is not exposed to an arc.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Relay Circuits (AREA)
  • Braking Arrangements (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (8)

1. Relais électromagnétique comportant une bobine comprenant un corps de bobine (1), un enroulement (7) et un noyau traversant (2), dont l'axe est parallèle au plan d'insertion, et en outre une culasse (11) disposée à côté de la bobine (1, 7), parallèlement à l'axe de cette dernière, et deux armatures plates (16, 17), dont l'une est prévue à une extrémité de la bobine, perpendiculairement à l'axe de cette dernière, est supportée par une extrémité respective de la culasse et forme respectivement avec une extrémité du noyau (2) un entrefer de travail, chaque armature (16, 17) portant, par l'intermédiaire d'un ressort de contact (21, 22), une pièce de contact respective (23, 24) et possédant respectivement un prolongement (16a, 17a) s'étendant au-delà du point de support et servant à s'accrocher à des moyens en forme de ressort de rappel, caractérisé par le fait que chaque armature (16, 17) coopère, par l'intermédiaire de sa pièce de contact associée (23, 24), avec un élément de contact antagoniste (26, 27) comportant une borne (par exemple 26a), que les pièces de contact (23, 24) des deux armatures (16, 17) sont reliées entre elles par l'intermédiaire d'un élément conducteur flexible (25; 35), que les deux armatures (16, 17) sont supportées respectivement au niveau d'un couteau de support (14, 15) de la culasse (11), et que les prolongements (16a, 17a) des deux armatures (16, 17) sont reliés entre eux, en arrière des couteaux de support (14, 15), par l'intermédiaire d'un ressort de rappel commun opérant en traction (20).
2. Relais suivant la revendication 1, caractérisé par le fait que l'élément électriquement conducteur (25; 35) est une tresse en cuivre, soudée directement sur les deux pièces de contact (23, 24; 33, 34) ou en un matériau aussi bon conducteur.
3. Relais suivant la revendication 1 ou 2, caractérisé par le fait que les deux flasques (5, 6) du corps de bobine comportent des évidements (12) permettant la fixation de la culasse (11) par enfichage.
4. Relais suivant l'une des revendications 1 à 3, caractérisé par le fait que les deux flasques de bobines (5, 6) comportent, en vis-à-vis de la culasse (11), des évidements respectifs (5a, 6a) permettant la fixation par enfichage d'un élément de contact antagoniste respectif (26, 27; 36, 37).
5. Relais suivant l'une des revendications 1 à 4, caractérisé par le fait que les deux contacts (23; 26; 24; 27) sont réalisés respectivement sous la forme de contacts de fermeture.
6. Relais suivant l'une des revendications 1 à 4, caractérisé par le fait que les deux contacts (23; 26; 24; 27) sont réalisés respectivement sous la forme de contacts d'ouverture.
7. Relais suivant l'une des revendications 1 à 6, caractérisé par le fait que l'élément conducteur (36), qui relie les deux pièces de contact mobiles (23, 24; 33, 34) comportent un élément particulier de raccordement (38).
8. Relais suivant la revendication 7, par le fait que les deux contacts s'ouvrent ou se ferment successivement, le contact, qui se ferme en premier ou s'ouvre en dernier, étant formé par des pièces de contact possédant une faible tendance au collage.
EP86111088A 1985-08-14 1986-08-11 Relais électromagnétique à deux armatures Expired EP0211446B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86111088T ATE48049T1 (de) 1985-08-14 1986-08-11 Elektromagnetisches relais mit zwei ankern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3529158 1985-08-14
DE3529158 1985-08-14

Publications (2)

Publication Number Publication Date
EP0211446A1 EP0211446A1 (fr) 1987-02-25
EP0211446B1 true EP0211446B1 (fr) 1989-11-15

Family

ID=6278503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86111088A Expired EP0211446B1 (fr) 1985-08-14 1986-08-11 Relais électromagnétique à deux armatures

Country Status (5)

Country Link
US (1) US4682133A (fr)
EP (1) EP0211446B1 (fr)
JP (1) JPS6240122A (fr)
AT (1) ATE48049T1 (fr)
DE (1) DE3666994D1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545356C2 (de) * 1985-12-20 1997-04-10 Siemens Ag Sicherheits-Schaltrelais
JPS6394527A (ja) * 1986-10-08 1988-04-25 オムロン株式会社 電磁リレ−
DE58904759D1 (de) * 1988-02-19 1993-07-29 Siemens Ag Elektromagnetisches relais.
US5025239A (en) * 1988-04-01 1991-06-18 Minolta Camera Kabushiki Kaisha Electromagnetic actuator for cameras and the like
DE4320831C1 (de) * 1993-06-23 1994-07-07 Hella Kg Hueck & Co Ankerlagerung für ein Klappankerrelais
FR2711839B1 (fr) * 1993-10-25 1996-02-02 Menini Manfred Interrupteur de puissance commandé.
DE19515322C2 (de) * 1995-04-20 1997-12-04 Brose Fahrzeugteile Antriebsvorrichtung mit einem Elektromotor und einem den Motorstrom schaltenden Relais
AU3597997A (en) * 1996-07-16 1998-02-09 Ewd L.L.C. Circuit protection arrangements
US6891458B2 (en) 1997-06-06 2005-05-10 Richard G. Hyatt Jr. Electronic cam assembly
US6349022B1 (en) 1998-09-18 2002-02-19 Tyco Electronics Corporation Latching protection circuit
DE59902983D1 (de) * 1998-12-22 2002-11-07 Tyco Electronics Logistics Ag Elektromagnetisches relais
DE10035173C1 (de) * 2000-07-19 2002-05-08 Matsushita Electric Works Europe Ag Magnetsystem für ein elektromagnetisches Relais
DE112009005402B4 (de) * 2009-11-26 2014-07-31 Toyota Jidosha Kabushiki Kaisha Reaktor-Sicherungsstruktur
DE102011081854A1 (de) * 2011-08-31 2013-02-28 Siemens Aktiengesellschaft Vorrichtung zur Lagerung eines Klappankers
DE102012202084A1 (de) * 2012-02-13 2013-08-14 Siemens Aktiengesellschaft Klappankerlagerung für magnetischen Auslöser
CN102867689A (zh) * 2012-09-14 2013-01-09 贵州振华群英电器有限公司 小型桥式双气隙结构密封直流电磁继电器
DE102015104211A1 (de) 2015-03-20 2016-09-22 Pilz Gmbh & Co. Kg Sicherheitsschaltgerät zum fehlersicheren Abschalten einer elektrischen Last

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1383494A (en) * 1916-08-25 1921-07-05 Briggs & Stratton Company Regulator
US1581830A (en) * 1923-05-14 1926-04-20 Gen Electric Circuit interrupter
FR612428A (fr) * 1923-08-14 1926-10-23 Dispositif de relais électro-magnétique à plusieurs armatures pour la mise en service automatique d'un circuit de secours et la protection du circuit principal dans les installations d'éclairage pour automobiles et analogues
US1795787A (en) * 1929-05-08 1931-03-10 Westinghouse Electric & Mfg Co Inductor relay
FR783822A (fr) * 1934-03-30 1935-07-18 Radio Electr Soc Fr Relais de manipulation rapide
US2353377A (en) * 1942-04-03 1944-07-11 R W Hood Shockproof relay
GB621770A (en) * 1946-12-31 1949-04-19 Electro Methods Ltd Improvements in or relating to electromagnetic relays
DE2112085A1 (de) * 1971-03-12 1972-09-14 Siemens Ag Elektromagnetisches Relais
FR2204870B1 (fr) * 1972-11-02 1977-08-26 Chauvin Arnoux Sa

Also Published As

Publication number Publication date
EP0211446A1 (fr) 1987-02-25
DE3666994D1 (en) 1989-12-21
US4682133A (en) 1987-07-21
ATE48049T1 (de) 1989-12-15
JPS6240122A (ja) 1987-02-21

Similar Documents

Publication Publication Date Title
EP0211446B1 (fr) Relais électromagnétique à deux armatures
DE60306409T2 (de) Elektrische schaltanordnung, relais und elektrisches schaltgerät mit einer solcher anordnung
DE102017119737A1 (de) Elektromagnetisches Relais
AT406207B (de) Steckbarer überspannungsableiter
DE69410099T2 (de) Schaltgeräte
EP0281950A1 (fr) Relais électromagnétique
DE3726194A1 (de) Elektromagnetische vorrichtung zur steuerung der stromspeisung eines elektrischen startermotors einer brennkraftmaschine
DE69709161T2 (de) Elektromagnetisches relais
DE3280416T2 (de) Leistungsschaltvorrichtung.
CH630200A5 (de) Elektromagnetische antriebsvorrichtung fuer ein miniaturrelais mit einem elektromagneten und miniaturrelais mit einer solchen antriebsvorrichtung.
EP0348909B1 (fr) Relais électromagnétique à coupure en charge
DE3217528C2 (de) Kontaktanordnung für Relais
DE3232679C2 (de) Elektromagnetisches Schaltrelais für hohe Strombelastung
WO1999026265A1 (fr) Relais electromagnetique a fusible
EP0099019A1 (fr) Relais avec ressort de contact de pontage
EP0578118B1 (fr) Elément de contact à fiche
EP0252344B1 (fr) Relais électromagnétique
DE69202661T2 (de) Elektrisches bistabiles Relais.
EP0177437B1 (fr) Assemblage de contact pour un interrupteur de puissance avec rupture dépendant du courant
EP0096350B1 (fr) Relais électromagnétique à armature tournante
EP1360709A1 (fr) Dispositif a contact de commutation
EP0091082B1 (fr) Appareil de commutation actionné électromagnétiquement
DE3508795C2 (fr)
DE69508483T2 (de) Elektromagnetischer Auslöser für einen Niederspannungsschutzschalter
DE4019236C2 (de) Kontaktvorrichtung sowie mit einer Kontaktvorrichtung ausgestattetes Relais

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19870506

17Q First examination report despatched

Effective date: 19880822

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19891115

Ref country code: NL

Effective date: 19891115

REF Corresponds to:

Ref document number: 48049

Country of ref document: AT

Date of ref document: 19891215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3666994

Country of ref document: DE

Date of ref document: 19891221

ET Fr: translation filed
ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19920722

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19920814

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19921120

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19930811

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19930831

Ref country code: CH

Effective date: 19930831

Ref country code: BE

Effective date: 19930831

BERE Be: lapsed

Owner name: SIEMENS A.G.

Effective date: 19930831

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19940718

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940824

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19941018

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950811

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950811

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050811