EP0199119B1 - Relais électromagnétique - Google Patents

Relais électromagnétique Download PDF

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Publication number
EP0199119B1
EP0199119B1 EP86103998A EP86103998A EP0199119B1 EP 0199119 B1 EP0199119 B1 EP 0199119B1 EP 86103998 A EP86103998 A EP 86103998A EP 86103998 A EP86103998 A EP 86103998A EP 0199119 B1 EP0199119 B1 EP 0199119B1
Authority
EP
European Patent Office
Prior art keywords
core
yoke
coil
limb
plane
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
EP86103998A
Other languages
German (de)
English (en)
Other versions
EP0199119A1 (fr
Inventor
Michael Dipl.-Ing. Dittmann
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 AT86103998T priority Critical patent/ATE44112T1/de
Publication of EP0199119A1 publication Critical patent/EP0199119A1/fr
Application granted granted Critical
Publication of EP0199119B1 publication Critical patent/EP0199119B1/fr
Expired 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
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/042—Different parts are assembled by insertion without extra mounting facilities like screws, in an isolated mounting part, e.g. stack mounting on a coil-support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/60—Contact arrangements moving contact being rigidly combined with movable part of magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/043—Details particular to miniaturised relays
    • H01H2050/044—Special measures to minimise the height of the relay
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/021—Bases; Casings; Covers structurally combining a relay and an electronic component, e.g. varistor, RC circuit

Definitions

  • the invention relates to an electromagnetic relay with a coil body carrying an excitation winding, with a core yoke which is formed in one piece from a flat strip and has at least two legs, of which a core leg is inserted axially through the coil body and from which a yoke leg is axially parallel next to or Extends above the coil winding, with a flat armature, which is supported at one end via a leaf spring at the free end of the yoke leg and forms an air gap with the other end opposite the free end of the core leg, the leaf spring being connected to an electrical connection element via the Kemjoch is and cooperates with its free end extended beyond the movable armature end as a contact spring with at least one fixed counter-contact element.
  • a relay is known from DE-A 2 021 455.
  • the object of the invention is to design a relay of the type mentioned in such a way that a compact design, in particular a particularly narrow design in one axis, can be made possible, this short axis can be placed differently to the installation plane without constructive change in the basic construction, d . that is, either an upstanding relay with a very small width or a flat relay with a very small height is obtained.
  • This compact relay should be sealable in a simple manner in a housing, and in addition to avoid a subsequent adjustment, a tolerance-tolerant assignment of armature, core and contact elements should be made possible from the design.
  • this object is achieved in that the coil axis runs parallel to the connection plane of the relay, that the yoke leg is bent and bent with its main plane into a position perpendicular to the main plane of the core leg, such that its center line is approximately aligned with the main plane of the core leg so that the armature on the side of the yoke leg facing the core leg is pivotally mounted about an axis parallel to the coil axis, extends with the part of the leaf spring lying thereon substantially in a plane parallel to the main plane of the core leg and thereby the working air gap with the flat side of the core leg forms and that the counter-contact element is anchored in the main plane of the core leg in an insertion groove of the coil body.
  • a particularly narrow design is achieved in at least one direction by cutting the core yoke from a flat strip, the core leg carrying the winding determining the narrow design and the yoke leg running parallel to the outside of the winding with its main plane at 90 ° is rotated so that its width lies above or next to the narrow side of the wound coil.
  • the armature is mounted on the yoke leg via the leaf spring and forms a large-area working air gap with its flat side opposite the flat side of the core leg.
  • the plug-in fastening of the core yoke in the coil body and the plug-in fastening of the mating contact element also in an insertion groove of the bobbin results in a tolerance-tolerant assignment between armature, core leg and mating contact element, so that the leaf spring attached to the armature and serving as a bearing spring largely does not have the correct contact distance to be adjusted Counter contact element occupies.
  • the relay has with the one-piece core yoke, on which a connection element for the leaf spring can be molded, the coil body used for the plug-in fastening and the leaf spring serving as a bearing spring for the armature and at the same time serving as a contact spring, an easy to assemble structure with few parts, only for completion still coil pins are required.
  • the relay is expediently arranged in a housing which, for example, consists of two parts made of plastic and can be sealed in the usual way.
  • connection elements for the leaf spring and for the mating contact element extending in the main plane of the core leg.
  • the connection element for the leaf spring can be integrally formed on a connection leg formed in one piece with the core yoke and lying in its plane; Of course, it can also be subsequently connected to the core yoke by welding or comparable processes.
  • the principal plane of the core limb extends parallel to the connecting plane of the relay, wherein a connecting element of the counter-contact element is angled in a direction perpendicular to the connection plane and a connection element for the leaf spring is formed on the yoke leg in its main plane or is subsequently attached to it.
  • the coil body can form a support edge for the armature for mounting the armature in the region of the free end of the yoke leg.
  • the coil body can each have open insertion grooves from the end face for receiving the mating contact element in one coil flange and for receiving the core yoke as well as two coil connecting elements in the area of the other coil flange, both the coil connecting elements and also connecting elements for the contact spring and the mating contact element in recesses in one Housing base are guided to the connection level of the relay.
  • the anchor bearing can also be designed so that the yoke leg forms a bearing notch in the region of its free end with a laterally angled rag, in which the anchor is mounted by means of a molded-on bearing edge. It is expedient that the bearing notch lies outside the main plane of the core leg and anchor and that the bearing notch is formed on an angled bearing section of the anchor.
  • the contact arrangement of the relay can be designed so that the leaf spring attached to the armature is substantially flat with its free end and forms a make contact with the mating contact element.
  • the contact spring between the free end of the armature and the mating contact element can also be bent so that it intersects their common plane between the armature and mating contact element and forms an opener with the mating contact element.
  • the housing of the relay is expediently formed in two parts.
  • a base is provided which receives the connection elements for the contact-making parts and for the coil in openings and forms the housing together with a protective cap put on.
  • the housing can also be formed from two essentially identical halves, the parting plane of which runs perpendicular to the connection plane of the relay.
  • the connection elements for the leaf spring, for the mating contact element and for the coil connections which are arranged in one plane, to be clamped in the parting plane between the two housing halves.
  • a space for accommodating additional components can be formed in the housing or in the coil former.
  • the relay shown in FIGS. 1 to 5 has a coil body 1 with flanges 2 and 3, which have different insertion grooves for receiving the other functional elements of the relay.
  • a core yoke 4 cut and shaped in one piece from flat strip material has an elongated core leg 5 and a yoke leg 6 running parallel to the core leg, which is rotated by 90 ° by an offset and bend 7 with its main plane such that its center line 6a is essentially in the Main plane of the core leg 5 lies.
  • a connecting leg 8 is formed parallel to the core leg 5 and in a plane therewith, on which a connection element in the form of a flat connector 9 is formed, which extends downwards perpendicularly to the installation plane of the relay.
  • the core yoke 4 is inserted into the latter in the axial direction, the core limb 5 being inserted into an axial through opening 10 of the coil former, so that its free end 5a comes to lie in a recess 11 in the coil flange 2.
  • a defined pole face is thus formed for an armature 12, which is mounted on the inner side 6b of the yoke leg 6 facing the core leg and extends perpendicular to the axial direction of the coil in the region of the coil flange 2, forming a working air gap with the end 5a of the core leg and on a bearing edge 13 of the bobbin is pivotally mounted about an axis parallel to the coil axis.
  • the armature is held by a leaf spring 14, which serves both as an armature bearing spring and as a contact spring and for this purpose is fastened with its section 14a to the yoke leg 6 by welding or the like, while its free end 14b projects beyond the free armature end and a contact piece 15 wears.
  • This contact piece 15 is opposite a contact piece 16 of a counter-contact element 17, which is fastened in an insertion groove 18 of the coil body flange 2.
  • the insertion groove 18 for the mating contact element 17 as well as the groove 11 for the end 5a of the core leg is formed in the coil body 1, wherein the two grooves expediently form contact surfaces for the parts mentioned in the same plane, there is a defined assignment of the pole face 5b to the surface of the mating contact element 17, as a result of which the leaf spring 14 connected to the armature 12 assumes the predetermined contact distance even without subsequent adjustment.
  • the yoke leg 6 lies centrally over the narrow side of the winding 19 applied to the coil former, so that overall a construction which is as narrow as possible is ensured.
  • the connecting leg 8 lies in one plane with the mating contact element 17 in the groove 20, while the coil connecting elements 21 and 22 are fastened in corresponding grooves 23 and 24 of the coil body flange 3 by insertion.
  • the ends 21 a and 22 a of the coil connecting elements 21 and 22 are initially angled outwards in order to enable easy winding of the coil ends (FIG. 5). Then they are bent into the recesses 3a and 3b of the bobbin flange 3 (Fig. 1, 4).
  • a base 25 with openings 26 is plugged onto the mating contact element 17, the connection element 9 and the coil connection elements 21 and 22.
  • a cap 27 is placed over this base 25, the edge grooves between the base and cap as well as the openings 26 can be sealed with potting compound.
  • This relay has a coil body 31 which is provided with the flanges 32 and 33 and is shaped essentially the same as the coil body 1 of the previously described embodiment.
  • a core yoke 34 is inserted into this coil former 31, said core yoke having a core leg 35 and a yoke leg 36 which is rotated by 90 ° relative thereto and connected via an offset 37.
  • the core leg 35 is received by the coil former 31 in its axial through opening 40, while the yoke leg 36 extends laterally next to the winding, lies with its center line 36a approximately in the main plane of the core leg 35 and with a nose 36b at its free end with an extension 31 a of the bobbin is engaged.
  • the anchor 12 from the previous embodiment is used here in the same shape and function.
  • the leaf spring 14 serves with its fastening section 14a for holding the armature 12 and with its free end 14b as a contact spring for receiving the contact piece 15.
  • the connecting element for the leaf spring is not formed in the plane of the core leg 35, but in the plane of the yoke leg 36 as a connecting pin 39. Parallel to this, a connecting pin 47 of a mating contact element 45 is also fastened with a contact piece 46 in a groove 48.
  • the coil body 31 provided with a winding 49 is inserted into a base 50 after the insertion of the core yoke 4 and the mating contact element 45 and after the application of the armature 12 with the leaf spring, the connecting pins 39 and 47 being inserted into corresponding openings 50a in the trough-shaped base body .
  • coil connection elements 51 and 52 are each arranged on the coil flange 33 and inserted through openings 50a of the base 50.
  • the middle part of the connection elements is in each case parallel to the installation plane, that is to say the section 51a in a recess 33a below the coil flange 33, while the section 52a lies flat on the coil flange 33a.
  • the respective solder pins 51b b and 52b are bent perpendicular to the connection plane and inserted through the corresponding recesses 50a of the base body.
  • the winding pins 51 and 52c for receiving the coil ends are each bent at a right angle to wind the coil in order to enable easier winding. They are then bent into a plane parallel to the installation plane and introduced into the base with the coil former, as can be seen in FIG. 9.
  • the housing is closed with an attached cap 53, which overlaps the base 50, the edge joint 54 and the openings 50a being able to be sealed in the customary manner.
  • FIGS. 12 to 17 A further modification is shown in FIGS. 12 to 17.
  • the basic structure is similar to that in FIGS. 1 to 5.
  • the coil body 61 has a largely rectangular cross section in its central part, which is arranged upright.
  • Flanges 62 and 63 are each formed on the coil former with corresponding insertion grooves and recesses for receiving the other parts.
  • a core yoke 64 with a core leg standing perpendicular in its main plane and a yoke leg 66 rotated by 90 ° in its main plane is fastened, as in the previous exemplary embodiments, by inserting the core leg 65 into an axial passage of the coil former; as there, an offset 67 is also provided on the core yoke, as a result of which the yoke leg comes to lie approximately centrally over the core leg.
  • the yoke leg has at its free end a lateral bend 68, which forms a bearing notch 69 for an armature 70 on its inside.
  • This armature 70 is slightly angled in itself, the bearing section 70a forming a bearing cutting edge 70b and the armature section 70c forming the working air gap with the core leg 65.
  • By bending the armature 70 its axis of rotation lies outside the plane formed by the core pole face and the contact point. This has a certain frictional effect when switching, with a self-cleaning effect of the contact.
  • a leaf spring 71 is fastened at its end 71a to the yoke leg 66, connected at its central portion 71b to the armature and carries at its free end 71 a contact piece 72 which is opposite the contact piece 73 of a mating contact element 74. The latter is in the manner previously described Coil body flange 62 fixed by inserting.
  • connection element 75 for the leaf spring 71 is not formed in one piece with the core yoke 64, but is formed as an additional part and subsequently attached to it. Between the fastening end 75b and the plug end 75a, this connection element 75 is angled and angled several times and held in recesses in the coil body such that the plug end 75a lies in one plane with the connection element 74.
  • coil connection elements 76 and 77 with their plug ends 76a and 77a are also arranged in corresponding recesses 78 and 79 of the coil flange 63 in the same plane, so that the relay has only plug pins in this one plane to the outside.
  • a two-part housing consisting of two halves 80 and 81 with a vertical parting plane, takes up the entire relay, with flat notches 82 being provided on the underside in both housing halves, in which the connecting elements 74a, 75a, 76a and 77a between the two housing halves be clamped.
  • the housing can be sealed along the circumferential joint by introducing a sealing compound.
  • this housing has a molded-on handle 83, with which the relay can be pulled out of a socket, for example.
  • a further space 84 is recessed within the housing in the area of the coil flange 63, in which an additional component can be arranged, for example a capacitor 85 connected between the coil connections.
  • an additional component can be arranged, for example a capacitor 85 connected between the coil connections.
  • the connection elements can of course also have solder pins . Such solder connections can be formed, for example, by partially disconnecting the plug parts along the dashed lines 86 shown in FIG. 12.

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

Claims (9)

1. Relais piézoélectrique comportant au moins un transducteur piézocéramique longitudinal (2), dont la variation de longueur, obtenue lors de l'application d'une tension, provoque une variation proportionnelle de la longueur, comptée entre les points d'encastrement, d'au moins un élément de contact réalisé sous la forme d'un ressort de flexion (3; 23a, 23b; 33), la zone médiane du ressort de flexion (3; 23a, 23b; 33) exécutant un déplacement transvrsal par rapport à au moins un élément de contact antagoniste (5, 6; 25a, 25b; 35, 36), caractérisé par le fait que le ressort de flexion (3; 23a; 23b; 33)
- est encastré de manière à être sensiblement parallèle au transducteur longitudinal (2), sa longueur entre les points d'encastrement pouvant être modifiée d'une manière proportionnelle et en sens opposé, sous l'effet de la variation de longueur du transducteur longitudinal (2), et
- est amené, par des moyens servant à produire une précontrainte élastique, à venir en contact, selon une liaison de force avec application d'une pression, avec les surfaces frontales du transducteur longitudinal (2).
2. Relais suivant la revendication 1, caractérisé par le fait que le ressort de flexion (3) est accouplé, par ses deux extrémités (3a, 3b), directement aux extrémités (2a, 2b) du transducteur longitudinal (2) et comporte, dans sa partie médiane, des surfaces de contact (4).
3. Relais suivant la revendication 1, caractérisé par le fait que les extrémités du ressort de flexion (3) sont accouplées par l'intermédiaire d'un système à levier aux extrémités du transducteur longitudinal (2).
4. Relais suivant l'une des revendications 1 à 3, caractérisé par le fait que le ressort de flexion (3) ou un bras de levier (8) du système à levier est repoussé, au moyen d'un ressort de pression (7; 17), contre le transducteur longitudinal (2) dans la direction de réaction de ce dernier.
, 5. Relais suivant la revendication 3, caractérisé par le fait qu'un bras de levier (8) pour le ressort de flexion (3) est précontraint par l'intermédiaire d'un ancrage fixe (1a) dans un cadre formant boîtier (1), dans la direction de réaction du transducteur longitudinal (2).
6. Relais suivant la revendication 3, caractérisé par le fait que deux bras de levier (18a, 18b), ancrés dans un support (19), pour les extrémités du ressort de flexion (3) exercent une précontrainte sur les deux surfaces frontales du transducteur longitudinal (2).
7. Relais suivant la revendication 3, caractérisé par le fait que deux plaques de pression (38a, 38b) sont repoussées, au moyen d'un cadre de pression (39) entourant le transducteur longitudinal (2), contre les faces frontales de ce transducteur et enserrent, par leurs extrémités libres, au moins un ressort de flexion (33).
8. Relais suivant la revendication 3 ou 7, caractérisé par le fait qu'un ressort de flexion (23a, 23b) est disposé de chaque côté du transducteur longitudinal (2) et qu'une plaque de pression (28a, 28b) s'applique sur chaque face frontale du transducteur longitudinal (2), les ressorts de flexion (23a, 23b) et les plaques de pression (28a, 28b), qui sont reliés entre eux par leurs extrémités, formant un cadre de pression pour le transducteur longitudinal (2), dont les forces de pression sont produites par une précontrainte des ressorts de flexion (23a, 23b).
9. Relais suivant l'une des revendications 1 à 8, caractérisé par le fait que la section, qui établit le contact, du ressort de flexion (3) est au moins partiellement ferromagnétique et est située entre les pièces polaires (41, 42) d'un système d'aimant permanent.
EP86103998A 1985-03-26 1986-03-24 Relais électromagnétique Expired EP0199119B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86103998T ATE44112T1 (de) 1985-03-26 1986-03-24 Elektromagnetisches relais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3510966 1985-03-26
DE3510966 1985-03-26

Publications (2)

Publication Number Publication Date
EP0199119A1 EP0199119A1 (fr) 1986-10-29
EP0199119B1 true EP0199119B1 (fr) 1989-06-14

Family

ID=6266387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103998A Expired EP0199119B1 (fr) 1985-03-26 1986-03-24 Relais électromagnétique

Country Status (5)

Country Link
US (1) US4684909A (fr)
EP (1) EP0199119B1 (fr)
JP (1) JPH0724183B2 (fr)
AT (1) ATE44112T1 (fr)
DE (1) DE3664017D1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734668A (en) * 1986-05-12 1988-03-29 Siemens Aktiengesellschaft Electromagnetic relay
US5038123A (en) * 1989-12-14 1991-08-06 General Motors Corporation Flat electromagnetic relay
DE4011402A1 (de) * 1990-04-09 1991-10-10 Siemens Ag Elektromagnetisches relais und verfahren zu dessen herstellung
US5191306A (en) * 1990-09-14 1993-03-02 Matsushita Electric Works, Ltd. Miniature electromagnetic assembly and relay with the miniature electromagnet assembly
US5148136A (en) * 1991-08-19 1992-09-15 General Motors Corporation Flat electromagnetic relay
DE9213889U1 (de) * 1992-10-14 1994-02-10 Siemens AG, 80333 München Spule für ein elektromagnetisches Relais
DE19653105C1 (de) * 1996-12-19 1998-04-23 Siemens Ag Elektromagnetisches Relais für hohe Wärmebelastung
DE19702717A1 (de) * 1997-01-25 1998-07-30 Bosch Gmbh Robert Elektrisches Schaltgerät und Verfahren zur Herstellung eines Magnetwinkels für ein solches
JP6768258B2 (ja) * 2016-12-28 2020-10-14 株式会社ミツバ 電磁継電器
JP6948613B2 (ja) * 2017-04-14 2021-10-13 パナソニックＩｐマネジメント株式会社 接点装置、及び電磁継電器
DE102018109856B3 (de) * 2018-04-24 2019-08-01 Phoenix Contact Gmbh & Co. Kg Relais
DE102018109864B4 (de) 2018-04-24 2021-09-02 Phoenix Contact Gmbh & Co. Kg Relais

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588765A (en) * 1968-05-13 1971-06-28 Essex International Inc Electromagnetic relays
DE1926188B2 (de) * 1969-05-22 1971-06-03 Elektromagnetisches relais
DE2021455C3 (de) * 1970-05-02 1974-01-24 Hartmann & Braun Ag, 6000 Frankfurt Monostabiles elektromagnetisches Kleinrelais
US3781729A (en) * 1972-09-25 1973-12-25 Trw Inc Inverted low loss relay structure
GB1440359A (en) * 1973-11-08 1976-06-23 Plessey Co Ltd Electromagnetic relay assemblies
JPS5814574Y2 (ja) * 1978-08-12 1983-03-23 オムロン株式会社 電磁石装置
US4393359A (en) * 1981-11-12 1983-07-12 Products Unlimited Corp. Electromagnetic relay
DE3318493A1 (de) * 1983-05-20 1984-11-22 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches kleinrelais und verfahren zu dessen herstellung

Also Published As

Publication number Publication date
JPS61230226A (ja) 1986-10-14
ATE44112T1 (de) 1989-06-15
DE3664017D1 (en) 1989-07-20
EP0199119A1 (fr) 1986-10-29
US4684909A (en) 1987-08-04
JPH0724183B2 (ja) 1995-03-15

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