EP0133582B1 - Relais électromagnétique - Google Patents

Relais électromagnétique Download PDF

Info

Publication number
EP0133582B1
EP0133582B1 EP84109509A EP84109509A EP0133582B1 EP 0133582 B1 EP0133582 B1 EP 0133582B1 EP 84109509 A EP84109509 A EP 84109509A EP 84109509 A EP84109509 A EP 84109509A EP 0133582 B1 EP0133582 B1 EP 0133582B1
Authority
EP
European Patent Office
Prior art keywords
armature
contact
yoke
relay
core yoke
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
EP84109509A
Other languages
German (de)
English (en)
Other versions
EP0133582A3 (en
EP0133582A2 (fr
Inventor
Helmut Dipl.-Ing. Schedele
Rolf-Dieter Dipl.-Phys. Kimpel
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 AT84109509T priority Critical patent/ATE26362T1/de
Publication of EP0133582A2 publication Critical patent/EP0133582A2/fr
Publication of EP0133582A3 publication Critical patent/EP0133582A3/de
Application granted granted Critical
Publication of EP0133582B1 publication Critical patent/EP0133582B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/548—Contact arrangements for miniaturised relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements

Definitions

  • the invention relates to an electromagnetic relay with a coil-carrying coil body or base body, a flat core yoke with its central portion embedded in the base body, which has a yoke leg running transversely to the coil axis at both ends outside the coil winding, with one on the core yoke mounted U-shaped flat armature, which is encompassing the coil winding with its central part parallel to the coil axis and with its two side legs essentially perpendicular to the coil axis.
  • Such a relay is known for example from DE-A-2 926 142.
  • a bow-shaped armature is supported with both ends on a bow-shaped core so that it executes pivoting movements approximately around the coil axis. So that the armature in the fallen state does not short-circuit the yoke in the system there, additional non-magnetic bearing elements must be provided in the bearing area.
  • this known relay contains a relatively large number of individual parts in order to transmit the armature movement to the contact spring via an actuating element. However, this means that both the volume and the manufacturing outlay for this known relay are still relatively high.
  • the object of the invention is to construct a relay with a simple but effective magnet system and with a contact unit in such a way that a compact structure and thus a small volume is achieved with a few simple parts, with both having the same basic structure due to slight modification of individual parts an upright installation as well as a flat installation of the rectangular relay is possible.
  • this object is achieved in a relay of the type mentioned at the outset in that the armature with its first side leg is pivotally mounted on the first yoke leg about an axis perpendicular to the coil axis and forms a working air gap with its second side leg relative to the second yoke leg
  • An anchor middle part is attached to a contact spring which, with its free end carrying a contact piece, engages around the armature and the core yoke in a U-shape and interacts on the side of the core yoke opposite the armature with at least one mating contact plate anchored in the coil former and provided with a connecting lug.
  • the inventive design of the core yoke and the armature and their arrangement relative to one another results in a very large coupling surface in relation to the overall size of the relay between armature and core, as a result of which high contact forces can be achieved with low excitation of the response.
  • the number of individual parts required is kept low by the direct connection of the contact spring to the armature, the relative actuation of the contacting end in two directions being made possible by the direct actuation of the contact spring on the armature and by its U-shaped bend toward the contact point that the friction achieved with this enables good self-cleaning of the contact surfaces even at very low switching currents.
  • the opposite arrangement of armature and contact unit on both sides of the core yoke is also particularly favorable. In this way, the free spaces specified by the coil winding and the core yoke are optimally used.
  • the contact spring also serves as a bearing spring for the armature and is connected to both the armature and the core yoke for this purpose.
  • This connection can be made, for example, by riveting or welding.
  • the contact spring has an integrally formed connecting lug in an extension of the connection point with the core yoke.
  • a connecting lug may be provided which is integrally formed on the core yoke and possibly reduced in cross section by embossing.
  • it advantageously has molded-on and cut-free spring legs, by means of which it clasps the first yoke leg and the first side leg of the armature.
  • the contact spring can also have a stop tab to absorb bounce when the armature falls off.
  • the contact spring extends obliquely to the direction of movement of the second side leg of the armature in the section that laterally encircles the armature.
  • the relay has two mating contact plates on the side of the core yoke opposite the armature, which are fastened in parallel to one another and to the core yoke in grooves in the base body, the contact-bound end of the contact spring being movable between their contact surfaces.
  • the mating contact plates extend between their fastening grooves essentially over the entire coil length, as a result of which not only a very precise fixing of the mating contact plates, but also good heat dissipation is achieved.
  • the mating contact plates with their connecting lugs either run in a straight line or a right angle is formed between the mating contact plate and the connecting lug.
  • the relay can thus be manufactured either for upright or for flat installation.
  • the relay shown in Figs. 1 to 6 has a so-called standing embodiment, i.e. the connection pins are led out of the housing in such a way that the rectangular relay is upright in its installed position and has a small footprint.
  • the relay has a coil body or base body 1 made of insulating material, which is obtained by extrusion coating a core yoke 2.
  • This core yoke 2 has a central section 2a running inside the coil winding 3 and two yoke legs 2b and 2c running outside the coil winding transversely to the coil axis.
  • the yoke leg 2b is kept approximately shorter in order to leave space for coil connecting pins 4 anchored in the base body.
  • the core yoke is designed as a flat cut part and is therefore easy and inexpensive to manufacture. It is encapsulated with plastic to form the base body, which base body can be made very stable and true to size despite the small wall thicknesses due to the injected core yoke made of metal. With these small wall thicknesses of the base body, a large winding space can be created for a given volume, with which the temperature-increasing power consumption can be kept low with a given excitation.
  • a U-shaped armature 5 is arranged on the core yoke, which has a central part 5a and side legs 5b and 5c of different lengths designed in accordance with the two yoke legs.
  • the anchor is also cut from a flat sheet.
  • the armature 5 is mounted with its first side leg 5b on the first yoke leg 2b in such a way that it can perform a pivoting movement about a pivot axis perpendicular to the coil axis and forms a working air gap with its second side leg 5c with respect to the second yoke leg 2c.
  • the yoke leg 2c and the armature leg 5c extend over the entire relay width, which results in a large pole area. As a result, a relatively high response sensitivity can be achieved even with a large anchor stroke.
  • a contact spring 6 is fastened with a wart rivet 7, which also serves as a bearing spring for the armature.
  • the contact and bearing spring 6 encloses the first armature leg 5b and the first yoke leg 2b with its partially cut-out and arcuate spring section 6a and is fastened to the yoke leg 2b by welding.
  • the restoring force of the armature is set by the prestressing of this spring section 6a.
  • the spring force tolerances can be switched off by aligning the parts before welding onto the yoke leg 2b.
  • a connecting pin 8 is also attached by welding, which is bent within the housing and guided outwards in the desired grid.
  • the contact spring 6 is split into two contact-making ends 6c and 6d, each of which carries a contact piece 6e.
  • the contact spring forms an additionally formed impact tooth 20 which dampens the rebound of the armature when the excitation is switched off and thus reduces contact bruises of the break contact.
  • the counter-contact plates 9 and 10 are in turn designed as flat cut parts, provided with molded or welded-on connection lugs 11 and 12 and inserted into corresponding grooves 13 and 14 of the base body 1 and held there by an interference fit. Due to the relatively large area of the contact plates 9 and 10, they are able to let the heat generated in the contact circuit flow away and radiate.
  • the counter contact plates 9 and 10 are easy to manufacture as flat cut parts; they are only plated with precious metal in the contact area.
  • the relay is inserted into a housing which is formed by a protective cap 1 and a base 16.
  • the housing is sealed by an additionally attached fleece 17 in the base area, which is impregnated with hardenable synthetic resin.
  • a getter chamber 18 is also formed, in which a getter pill 19 can be clamped.
  • FIG. 7 shows a slightly modified embodiment in a representation corresponding to FIG. 5.
  • the core yoke 2 is in this case provided with an integrally formed and embossed extension 2d, which serves as a connecting pin for the contact spring 6.
  • the relay is constructed similarly to that already described with reference to FIGS. 1 to 6.
  • the relay shown in FIGS. 8 to 12 has essentially the same basic construction as the one described above, but it is designed, in particular, by modifying the connecting pins in such a way that it is suitable for horizontal installation with a low overall height.
  • This relay has a base body 21 with an embedded core yoke 22, which carries a winding 23 and connecting pins 24.
  • the core yoke has two yoke legs 22b and 22c, a U-shaped armature 25 with a first side leg 25b being mounted on the yoke leg 22b and with its second side leg 25c forming a working air gap with respect to the yoke leg 22c.
  • a contact and bearing spring 26 is fastened by a rivet 27 on the middle section 25a of the armature 25, it engages around the armature leg 25b and the yoke leg 22b with its arcuate spring section 26a and is fastened with welding points 28 to the yoke leg 22b.
  • An additional molded-on spring tab 26f which engages on the underside of the yoke leg 2b, serves for pre-fixing.
  • a connecting pin 26g is also formed on the contact spring 26.
  • the contact spring engages with a U-shaped section 26b the armature and the core yoke and is split at its free end into two contacting end sections 26c and 26d, each of which carries a contact piece 26e. With these, it can be switched between the two mating contact plates 29 and 30. These are provided with connection lugs 31 and 32 bent at right angles and inserted for fastening in grooves 33 and 34 of the base body 21.
  • a protective cap 35 with a base 36 serves as the housing, the edge groove or the openings for the connecting pins being sealed with casting compound 37.
  • a chamber 38 for receiving a getter pill 39 is also provided in the base body.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Valve Device For Special Equipments (AREA)
  • Cookers (AREA)
  • Surgical Instruments (AREA)

Claims (10)

1. Relais électromagnétique comportant un corps de base (1; 21) portant un enroulement, une culasse en forme de noyau plat (2; 22) enchâssée par sa section médiane dans le corps de base et qui comporte, au niveau de ses deux extrémités et à l'extérieur de l'enroulement formant bobine (3; 23), des branches respectives de culasse (2b, 2c; 22b, 22c) s'étendant transversalement par rapport à l'axe de la bobine, et une armature plate en forme de U (5; 25), qui est montée sur la culasse en forme de noyau et qui, en entourant l'enroulement formant bobine, est parallèle par sa partie médiane à l'axe de la bobine et est essentiellement perpendiculaire, par ses deux branches latérales (5b, 5c; 25b, 25c) à l'axe de la bobine, caractérisé par le fait que l'armature (5; 25) est montée, par sa première branche latérale (5b; 25b), sur la première branche de culasse (2b; 22b) de manière à pouvoir pivoter autour d'un axe perpendiculaire à l'axe de la bobine et forme, avec sa seconde branche latérale (5c; 25c), un entrefer de travail par rapport à la seconde branche de culasse (2c; 22c), et que sur la partie médiane (5a; 25a) de l'armature se trouve fixé un ressort de contact (6; 26), dont l'extrémité libre (6b; 26b), qui porte une pièce de contact (6e; 26e), entoure en forme de U l'armature (5; 25) de la culasse en forme de noyau (2; 22) et qui coopère, sur le côté de la culasse en forme de noyau (2; 22) située à l'opposé de l'armature (5; 25), avec au moins une tôle de contact antagoniste (9, 10; 29, 30) ancrée dans le corps de base (1; 21) et munie d'une languette de raccordement (11, 12; 31, 32).
2. Relais suivant la revendication 1, caractérisé par le fait que le ressort de contact (6; 26) est relié, en tant que ressort de support, aussis bien à l'armature (5; 25) qu'à la culasse en forme de noyau (2; 22).
3. Relais suivant la revendication 1 ou 2, caractérisé par le fait que la culasse en forme de noyau (2) forme un appendice saillant estampé (2a) en tant que languette de raccordement pour le ressort de contact (6).
4. Relais suivant la revendication 1, caractérisé par le fait que le ressort de contact (26) forme une languette de raccordement (26g) dans le prolongement du point de fixation sur la culasse en forme de noyau (22).
5. Relais suivant l'une des revendications 1 à 4, caractérisé par le fait que le ressort de contact (6; 26) enserre la première branche de culasse (2b; 22b) et la première branche latérale (5b; 25b) de l'armature (5; 25) à l'aide de branches (6a; 26a) réalisées par façonnage et découpées.
6. Relais suivant l'une des revendications 1 à 5, caractérisé par le fait qu'une languette de butée (20) amortissant la retombée de l'armature est formée par façonnage sur le ressort de contact (6).
7. Relais suivant l'une des revendications 1 à 6, caractérisé par le fait que l'élément (6b; 26b), qui entoure latéralement l'armature (5; 25), du ressort de contact (6; 26) s'étend obliquement par rapport à la direction de déplacement des pièces de contact (6e; 26e).
8. Relais suivant l'une des revendications 1 à 7, caractérisé par le fait que sur le côté de la culasse en forme de noyau (2; 22), situé à l'opposé de l'armature (5; 25), deux tôles de contact antagonistes (9, 10; 29, 30) sont fixées, d'une manière enfichable, parallèlement l'une à l'autre et à la culasse en forme de noyau (2; 22) dans des rainures (13, 14; 33, 34) du corps de base (1; 21), entre les surfaces de contact desquelles l'extrémité du ressort de contact (6; 26), qui établit le contact, peut être déplacée.
9. Relais suivant l'une des revendications 1 à 8, caractérisé par le fait que les tôles de contact antagonistes (9, 10; 29, 30) s'étendent essentiellement sur toute la longueur de la bobine.
10. Relais suivant l'une des revendications 1 à 9, caractérisé par le fait que les tôles de contact antagonistes (9, 10; 29, 30) et leurs languettes de raccordement (11, 12) sont rectilignes ou que, au choix, les tôles de contact antagonistes (29, 30) et les languettes de raccordement (31, 32) forment entre elles un angle droit.
EP84109509A 1983-08-12 1984-08-09 Relais électromagnétique Expired EP0133582B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84109509T ATE26362T1 (de) 1983-08-12 1984-08-09 Elektromagnetisches relais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3329239 1983-08-12
DE19833329239 DE3329239A1 (de) 1983-08-12 1983-08-12 Elektromagnetisches relais

Publications (3)

Publication Number Publication Date
EP0133582A2 EP0133582A2 (fr) 1985-02-27
EP0133582A3 EP0133582A3 (en) 1985-04-03
EP0133582B1 true EP0133582B1 (fr) 1987-04-01

Family

ID=6206455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84109509A Expired EP0133582B1 (fr) 1983-08-12 1984-08-09 Relais électromagnétique

Country Status (5)

Country Link
US (1) US4567457A (fr)
EP (1) EP0133582B1 (fr)
JP (1) JPS6062032A (fr)
AT (1) ATE26362T1 (fr)
DE (2) DE3329239A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337268Y2 (fr) * 1984-09-13 1991-08-07
AT389958B (de) * 1986-03-24 1990-02-26 Uninorm Anstalt Relais
DE3640996A1 (de) * 1986-12-01 1988-06-09 Bosch Gmbh Robert Elektromagnetisches relais
DE19544625C2 (de) * 1995-11-30 2001-05-31 Hella Kg Hueck & Co Ankerlagerung für ein Klappankerrelais

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2107848A (en) * 1936-11-14 1938-02-08 Utah Radio Products Company Circuit controlling device
BE457294A (fr) * 1943-08-19
BE771263A (nl) * 1971-08-13 1972-02-14 Bell Telephone Mfg Elektromagnetisch relais, (uitv. : o. wuyts, m. van der auwera),
DE2254000C3 (de) * 1972-11-04 1975-06-19 Swf-Spezialfabrik Fuer Autozubehoer Gustav Rau Gmbh, 7120 Bietigheim Kleinrelais, insbesondere für Leiterplatten in gedruckter Schaltung
JPS5124753A (en) * 1974-08-22 1976-02-28 Matsushita Electric Works Ltd Denjikeidenki
US4272745A (en) * 1978-06-30 1981-06-09 Omron Tateisi Electronics Co. Electromagnetic relay
DE8302962U1 (de) * 1983-02-03 1983-06-09 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais

Also Published As

Publication number Publication date
EP0133582A3 (en) 1985-04-03
US4567457A (en) 1986-01-28
ATE26362T1 (de) 1987-04-15
DE3329239A1 (de) 1985-02-21
DE3462966D1 (en) 1987-05-07
JPS6062032A (ja) 1985-04-10
EP0133582A2 (fr) 1985-02-27

Similar Documents

Publication Publication Date Title
DE102006036613B3 (de) Relais mit einer Konkaktanordnung aus Kontaktfedern
EP0281950B1 (fr) Relais électromagnétique
EP0363976B1 (fr) Relais électromagnétique
EP0199119B1 (fr) Relais électromagnétique
EP0099019B1 (fr) Relais avec ressort de contact de pontage
EP0203496B1 (fr) Relais électromagnétique
EP0133582B1 (fr) Relais électromagnétique
EP1018129B1 (fr) Relais electromagnetique
EP0252344B1 (fr) Relais électromagnétique
EP1643522B1 (fr) Relais électromagnétique
EP0110132B1 (fr) Relais électromagnétique
DE3823852C2 (de) Relais
EP1473752B1 (fr) Déclencheur électromagnétique
DE3508795C2 (fr)
WO1998050932A1 (fr) Relais electromagnetique
DE68927238T2 (de) Elektromagnetisches Relais
DE2146407A1 (de) Flachrelais in miniaturbauweise
EP1473751B1 (fr) Déclencheur électromagnétique
DE3110971C2 (de) Elektrischer Kontaktschalter
DE10331280B4 (de) Kontaktfederbaugruppe und Relais mit einem Wippanker
EP0337097A1 (fr) Relais électromagnétique
DE4424860B4 (de) Schalter mit schleifenförmig gebogenem beweglichen Schaltstück
DE10316509B3 (de) Elektromagnetisches Relais
EP4202272A1 (fr) Soupape à fluide
DE3400502A1 (de) Elektrisches 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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

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

AK Designated contracting states

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

17P Request for examination filed

Effective date: 19850807

17Q First examination report despatched

Effective date: 19860718

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

REF Corresponds to:

Ref document number: 26362

Country of ref document: AT

Date of ref document: 19870415

Kind code of ref document: T

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

Ref country code: SE

Effective date: 19870430

REF Corresponds to:

Ref document number: 3462966

Country of ref document: DE

Date of ref document: 19870507

ET Fr: translation filed
ITF It: translation for a ep patent filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19870831

Year of fee payment: 4

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

Ref country code: BE

Effective date: 19890831

BERE Be: lapsed

Owner name: SIEMENS A.G. BERLIN UND MUNCHEN

Effective date: 19890831

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

Ref country code: NL

Effective date: 19900301

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900719

Year of fee payment: 7

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

Ref country code: AT

Payment date: 19900727

Year of fee payment: 7

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

Ref country code: FR

Payment date: 19900827

Year of fee payment: 7

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: DE

Payment date: 19901025

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: 19901123

Year of fee payment: 7

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

Ref country code: GB

Effective date: 19910809

Ref country code: AT

Effective date: 19910809

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

Ref country code: LI

Effective date: 19910831

Ref country code: CH

Effective date: 19910831

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19920501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST