EP0252343B1 - Procédé d'ajustage pour un relais électromagnétique ainsi que relais ajusté selon ce procédé - Google Patents

Procédé d'ajustage pour un relais électromagnétique ainsi que relais ajusté selon ce procédé Download PDF

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Publication number
EP0252343B1
EP0252343B1 EP87108703A EP87108703A EP0252343B1 EP 0252343 B1 EP0252343 B1 EP 0252343B1 EP 87108703 A EP87108703 A EP 87108703A EP 87108703 A EP87108703 A EP 87108703A EP 0252343 B1 EP0252343 B1 EP 0252343B1
Authority
EP
European Patent Office
Prior art keywords
armature
relay
housing
carrier
pole plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87108703A
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German (de)
English (en)
Other versions
EP0252343A1 (fr
Inventor
Klaus Dipl.-Ing. Lüneburger
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 AT87108703T priority Critical patent/ATE60164T1/de
Publication of EP0252343A1 publication Critical patent/EP0252343A1/fr
Application granted granted Critical
Publication of EP0252343B1 publication Critical patent/EP0252343B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/34—Means for adjusting limits of movement; Mechanical means for adjusting returning force

Definitions

  • the invention relates to an adjustment method for setting the switching characteristics of an electromagnetic relay, in which at least one flat pole plate and one armature opposite the spring plate with a predetermined air gap with overlapping pole faces are arranged in a housing, resilient or spring-loaded armature.
  • the invention relates to a correspondingly adjustable relay.
  • the response values can only be set to a limited extent by bending the armature, since bending would also change the contact spacing with correspondingly undesirable consequences. If there are also anchors and pole plates in a closed contact space, the possibility of adjusting the bend is only possible with a special construction and with special processes. For example, in the case of a multiple contact, as shown in DE-OS 20 59 390, the armature and its bearing spring are no longer accessible after the contact space has been closed. Only after completion of the contact and its insertion in a relay, the response or. Relapse values are checked and evaluated for a targeted comparison to compensate for manufacturing tolerances.
  • the object of the invention is to provide an adjustment method of the type mentioned at the outset, which can also be used with armature contacts and in closed contact spaces and with which an adjustment of the characteristic values of a relay after assembly and thus to allow for all manufacturing tolerances. More precisely, this method is intended to enable the relay characteristic values, in particular the response voltage and the dropout voltage of the relay, to be set within a narrow range. In addition, the invention is intended to provide a relay suitable for the use of this method.
  • the above-mentioned object is achieved in an adjustment method of the type mentioned at the outset by first fixing only the pole plate or the armature in the housing, while the other of these elements in a guide slot of the housing while maintaining the specified air gap, but parallel to the pole faces Slidably arranged, remains that by gradually moving the displaceable element the overlap area of the pole faces is changed and in each case the characteristic values for the response and / or falling of the relay are measured and that the displaceable element is fixed in the housing when the measured characteristic values are within a predetermined range Range.
  • pole area is varied without changing the air gap distance. Since the parallel displacement of pole sheet or
  • the invention can be applied to a relay in which two pole plates are arranged at a distance from one another with their free ends at a distance from one another and the armature is arranged approximately parallel to the free ends of both pole plates, forming an overlap region in each case.
  • either one or both pole plates or the armature is expediently first arranged displaceably in the housing, displaced after assembly in the manner mentioned and fixed only after the desired characteristic values of the relay have been reached.
  • the armature is slidably supported in the guide slot of the housing by means of a resilient support relative to both pole plates and is fixed after the desired characteristic values have been reached.
  • the armature or the support is preferably guided in the housing such that a displacement only in the direction the longitudinal axis of the armature and the pole plates is possible. This means that the overlap area between the armature and a first pole plate is increased and at the same time the overlap area between the armature and the second pole plate is reduced or vice versa.
  • the pole plate or the pole plates are embedded in a first housing part, then the resilient carrier carrying the armature is inserted into a groove formed between the first housing part and a second housing part insert the two housing parts, then a coil winding is applied over the assembled housing parts, then the armature is adjusted by moving the carrier in the groove relative to the pole plates, whereby the response or dropout voltage of the relay are measured, and finally after reaching the desired response or Drop voltage of the anchor girders fixed by pouring liquid plastic.
  • a relay for applying the method according to the invention has a two-part coil body serving as a housing, a contact space being formed in the interior of the coil body by trough-shaped recesses in both coil body parts, and also two having their free ends embedded in one plane in the one coil body part with their free ends in the contact space opposing pole plates and a flat armature supported in the contact space via a resilient carrier, and a winding applied over both coil former parts.
  • Both coil former parts are molded from plastic, in the separation area between the two coil former parts there is a groove at least on two opposite sides of the contact space, in which the armature carrier is arranged at a predetermined distance parallel to the plane of the pole plates, but within its main plane with play. and the anchor bracket is fixed in the groove by additional means.
  • the anchor carrier has a frame shape and is arranged and fixed in a circumferential groove which at least in one direction exceeds the length of the anchor carrier, the anchor being fastened to a tongue which extends inwards from one side of the frame.
  • the anchor can only be held with part of a frame or with only one web.
  • the armature carrier can have an integrally formed adjustment web which extends from the armature carrier in the direction of the outside of the coil body and is accessible from the outside at least before the armature carrier is fixed.
  • FIG. 1 the adjustment of a relay according to the invention is shown schematically.
  • two pole plates 6 and 7 are arranged in a plane to one another in a housing, while an armature 8 is also held in the housing parallel to the two pole plates via a resilient support 9.
  • the bridge armature 8 is arranged so that it overlaps with the ends of both pole plates 6 and 7 by the same length a, so that - with the same width of the parts, the air gap surfaces between the armature 8 on the one hand and each of the pole plates are of the same size 6 and 7 are formed on the other hand.
  • the response values and the dropout values of the relay i.
  • the armature 8 is displaced in parallel via its support 9 in the housing, so that although the air gap distance to the pole plates is not changed, the overlap regions with respect to the pole plates are increased or reduced.
  • the direction of displacement is indicated in FIG. 2 by the double arrow 15.
  • the armature 8 is shifted to the right compared to Fig. 1, so that the overlap length b between the armature 8 and the pole plate 6 has become smaller than the overlap length a of Fig. 1, while the overlap length c between the Armature 8 and the pole plate 7 is greater than the previously existing overlap length a.
  • the response voltage in the arrangement according to FIG. 2 has thus increased, while the dropout voltage has become lower.
  • the individual pole plates could also be moved separately in order to set the desired values independently.
  • FIGS. 3 and 4 A relay in which the described adjustment method can be used is shown in FIGS. 3 and 4 described below.
  • the relay shown in FIG. 3 shows a two-part base body, the lower part 1 and the upper part 2 of which are approximately half-shell-shaped and are joined together in such a way that they result in a coil former on which a winding 3 is applied.
  • the lower base body part 1 has a trough-shaped recess 4
  • the upper base body part 2 has a corresponding trough-shaped recess 5, which together form the contact space.
  • two pole plates 6 and 7 are embedded, in such a way that their free ends extend into the contact space 4, 5 and face each other at a certain distance.
  • the pole plates 6 and 7 can also each be anchored with their longitudinal edges in the side walls of the contact space. A plug-in fastening instead of the embedding would also be possible.
  • the pole plate 6 has in the flange 2a of the base part 2 a connection element 6a which is integrally formed with its longitudinal extent in the same plane and which is bent outside the base body perpendicularly downward to the connection level of the relay. There it can be designed as a conventional connecting pin or to form a flat contact 6b as shown in FIG. 3 be shaped.
  • the relay is therefore suitable for surface mounting (SM technology).
  • a corresponding connection 7a with a flat contact 7b is formed on the pole plate 7 in the region of the flange 2b.
  • each coil connection pins 3a which, like the contact connection elements 6a and 7a, can optionally be provided on one or the other side of the relay or on both sides.
  • An armature 8 is arranged in the contact space 4, 5 and is held parallel to the two pole plates 6 and 7 at a predetermined contact distance and forms an overlap area with each of these pole plates.
  • the armature 8 bridges the two pole plates magnetically and electrically.
  • it is provided with a contact layer 8a in the overlapping areas.
  • Corresponding contact layers are also applied to the pole plates.
  • the armature 8 is held by a frame-shaped armature support 9, which will be explained in more detail later with reference to FIG. 4.
  • the connection between anchor 8 and anchor carrier 9 is made by spot welding 10. However, other connection options are also considered.
  • the design and arrangement of the anchor support 9 in connection with a part of the base body is shown schematically in FIG. 4.
  • the lower base body part 1 has the trough-shaped recess 4 in the central region, which forms the lower part of the contact space.
  • a frame-shaped shoulder 11 is provided in the base body part 1, the height of which corresponds approximately to half the thickness of the anchor carrier 9 made of spring material.
  • a corresponding paragraph is also provided in the upper housing part 2, not shown in FIG. 4, so that when the two housing parts 1 and 2 are joined together, a frame-shaped groove is formed between them, in which the anchor carrier 9 inserted between them is held.
  • a tongue 9 a which carries the armature 8, is formed on the inside of a cross bar of the frame 9.
  • the longitudinal extent of the paragraph 11 in the base parts 1 and 2 is kept longer than the frame of the anchor bracket 9.
  • the anchor bracket 9 can still be moved within its mounting plane even after joining the housing parts, so that the respective faces of the armature facing the pole plates 6 and 7 can be changed in accordance with FIGS. 1 and 2 in order to adjust the response sensitivity of the relay.
  • it has on one side an outwardly projecting adjustment web 12, which can be actuated from the outside in a corresponding recess 13 of the base body 1 or 2.
  • the opening 13 can be closed, for example, by pouring in casting compound or adhesive, which at the same time fixes the anchor carrier 9.
  • FIGS. 5 and 6 A modified embodiment of the anchor carrier is shown in FIGS. 5 and 6 in side view and in plan view.
  • An anchor bracket 19 is shown, which is designed only as a leaf spring clamped on one side. To improve the clamping, the clamped end 19a is widened in a T-shape. It is held in a corresponding groove, not shown, between the two base parts 1 and 2. In this representation, too, the connection point between anchor and anchor carrier is indicated in the form of a weld spot.
  • the end 19a of the armature carrier 19 serves as an adjustment web which, after the two housing parts have been joined, is still accessible from the outside in order to move the armature in the manner already described and thus to adjust the relay. In order to ensure a defined position of the armature and thus a defined response for the operation of the relay, it is expedient in this embodiment as in the previous one to fix the armature carrier 19 by introducing adhesive or potting compound into the adjustment opening.
  • the manufacture of the relay is easy because all metal parts are flat stampings that do not need to be bent; the subsequent bending of the connection elements 6a, 7a or 3a on the outside of the base body can be disregarded here.
  • the pole plates 6 and 7 are thus injected as flat stamped parts in the upper housing part 2, while the coil connection elements 3a are injected into the lower housing part 1.
  • the anchor carrier 9 and 19 with the welded-on anchor 8 being arranged between the two housing parts. In this way, he already receives the specified contact distance or air gap distance to the pole plates.
  • the armature carrier is moved in the manner described for comparison.
  • the response and dropout voltage of the relay being measured in each case by means of a corresponding measuring arrangement. If the values are in the desired range, the relay is adjusted and the anchor bracket can be fixed by gluing the adjustment bar, for example.
  • a ferromagnetic film 14 is also applied as a flux return via the upper housing part.
  • a final overmolding or dipping process could, if necessary, ensure the fixing of the iron foil and the coil as well as a secure seal of the interior.
  • the armature serves as a bridge contact and therefore does not require its own connection.
  • this type of anchor bracket definitely makes contact with one of the The pole plate closes first and a contact opens in the same way, the relay can also be provided with a lead contact or a follow-up contact.
  • only the two pole plates 6 and 7 are connected in an electrically conductive manner, for example by welding a contact layer.
  • the armature requires its own connection element, while one of the connection elements of the pole plates can be omitted.
  • This connection element for the armature can be injected, for example, in the lower housing part 1, an end projecting on the inside being connected to the armature carrier, for example by welding.
  • contact layers of different properties are then provided in a known manner between armature and pole plates.
  • the pole plates can also be arranged displaceably in the housing.
  • the pole plates can also be arranged displaceably in the housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Breakers (AREA)
  • Relay Circuits (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Claims (10)

1. Procédé de réglage pour régler la grandeur caractéristique de coupure d'un relais électromagnétique, selon lequel au moins une plaque polaire plate (6, 7) et une armature élastique ou suspendue élastiquement (8), disposée en visà-vis de la plaque polaire et délimitant un entrefer prédéterminé, avec des surfaces polaires en superposition, caractérisé par le fait
qu'on fixe tout d'abord uniquement la plaque polaire (6, 7) ou larmature (8) dans le boîtier, tandis que l'autre de ces éléments (7, 6, 8) reste disposé dans une fente de guidage (11) du boîtier en étant déplaçable tout en conservant l'entrefer prédéterminé, mais parallèlement aux surfaces polaires,
qu'en déplaçant pas-à-pas l'élément mobile (6, 7; 8), on modifie la zone de superposition des surfaces polaires (a, b, c) et on mesure respectivement les valeurs caractéristiques relatives à la réponse et/ou la retombée du relais, et
qu'on fixe l'élément mobile (6, 7; 8) dans le boîtier, lorsque les valeurs caractéristiques mesurées sont dans une gamme prédéterminée.
2. Procédé selon la revendication 1, selon lequel on dispose deux plaques polaires (6, 7) dans un plan commun de manière que leurs extrémités libres soient en vis-à-vis à une certaine distance et on dispose l'armature (8) en vis-à-vis des et approximativement parallèlement aux extrémités libres des deux plaques polaires (6, 7), et ce avec une zone respective de superposition (a; b; c), caractérisé par lefait qu'on dispose au moins l'une des plaques polaires (6, 7) ou l'armature (8) de manière qu'elle soit déplaçable dans le boîtier (1, 2) et qu'on déplace au moins l'un des éléments mobiles (8) et qu'on le fixe après l'obtention des valeurs caractéristiques désirées du relais.
3. Procédé selon la revendication 2, caractérisé en ce qu'on installe l'armature (8) de manière qu'elle soit supportée par un ressort élastique (9; 19) en étant déplaçable par rapport aux deux plaques polaires (6, 7), dans la fente de guidage (11) du boîtier, et qu'on la fixe après l'obtention des valeurs caractéristiques désirées.
4. Procédé suivant la revendication 3, caractérisé par le fait qu'on déplace l'armature (8) dans la direction longitudinale des deux plaques polaires (6,7).
5. Procédé suivant la revendication 3 ou 4, caractérisé par le fait qu'on déplace l'armature (8) transversalement par rapport aux deux plaques polaires (6, 7).
6. Procédé suivant l'une des revendications 1 à 5, caractérisé par le fait qu'on encastre la ou les plaques polaires (6, 7) dans une première partie (2) du boîtier, qu'on insère le support élastique (9; 10), qui porte l'armature, dans une rainure (11) formée entre la première partie (2) du boîtier et une seconde partie (1) du boîtier, lors de l'assemblage des deux parties du boîtier, qu'on installe ensuite un enroulement de bobine (3) par-dessus les parties réunies du boîtier, qu'on déplace l'armature (8) par rapport aux pièces polaires (8) en déplaçant le support (9; 19) dans la rainure (11), en mesurant respectivement la tension de réponse ou de retombée du relais, et qu'une fois atteinte la tension désirée de réponse ou de retombée, on fixe le support (9; 19) de l'armature en coulant une matière plastique liquide.
7. Relais pouvant être réglé conformément au procédé selon l'une des revendications 1 à 6,
comportant un corps de bobine (1, 2) en deux parties, utilisé en tant que boîtier et à l'intérieur duquel un espace d'établissement du contact est formé par des évidements en forme d'auges (4, 5) ménagés dans les deux parties (1, 2) du corps de bobine,
deux plaques polaires (6, 7) encastrées, dans un plan, dans une première partie (2) du corps de bobine et dont les extrémités libres sont disposées en vis-à-vis l'une de l'autre dans l'espace (4, 5) d'établissement du contact,
une armature plate (8) supportée par l'intermédiaire d'un support élastique (9; 19) dans l'espace d'établissement du contact, et
un enroulement (3) disposé par-dessus les deux parties (1, 2) du corps de bobine,
caractérisé par le fait
que les deux parties (1, 2) du corps de bobine sont formées par moulage d'une matière plastique,
que dans la zone de séparation entre les deux parties (1, 2) du corps de bobine est ménagée, au moins sur deux côtés opposés de l'espace d'établissement du contact, une rainure (11), dans laquelle le support (9; 19) de l'induit est disposé à une distance prédéterminée parallèlement au plan des plaques polaires (6, 16), mais avec un certain jeu dans son plan principal, et
que le support (9; 19) de l'armature est fixé dans la rainure (11) par des moyens supplémentaires.
8. Relais suivant la revendication 7, caractérisé par le fait que le support (19) de l'armature est réalisé sous la forme d'une languette, dont une extrémité est fixée dans une rainure correspondant à sa largeur et dont l'autre extrémité porte l'armature (8) dans l'espace d'établissement du contact.
9. Relais suivant la revendication 7, caractérisé par le fait que le support (9) de l'armature possède la forme d'un cadre, est disposé et fixé dans une rainure circonférentielle (11) qui s'étend sur une longueur supérieure à la longueur du support (9) de l'armature, au moins dans une direction, et est fixé à une languette (9a), qui s'étend vers l'intérieur à partir d'un côté du cadre.
10. Relais suivant l'une des revendications 7 à 9, caractérisé par le fait que le support (9) de l'armature possède une barrette d'ajustement (12) formée par moulage, qui s'étend à partir du support (9) de l'armature en direction du côté extérieur du corps de bobine et est accessible de l'extérieur au moins avant la fixation du support (9) de l'armature.
EP87108703A 1986-06-23 1987-06-16 Procédé d'ajustage pour un relais électromagnétique ainsi que relais ajusté selon ce procédé Expired - Lifetime EP0252343B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87108703T ATE60164T1 (de) 1986-06-23 1987-06-16 Abgleichverfahren fuer ein elektromagnetisches relais sowie ein mit diesem verfahren abgleichbares relais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3620941 1986-06-23
DE3620941 1986-06-23

Publications (2)

Publication Number Publication Date
EP0252343A1 EP0252343A1 (fr) 1988-01-13
EP0252343B1 true EP0252343B1 (fr) 1991-01-16

Family

ID=6303485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108703A Expired - Lifetime EP0252343B1 (fr) 1986-06-23 1987-06-16 Procédé d'ajustage pour un relais électromagnétique ainsi que relais ajusté selon ce procédé

Country Status (5)

Country Link
US (1) US4803451A (fr)
EP (1) EP0252343B1 (fr)
JP (1) JPS6324520A (fr)
AT (1) ATE60164T1 (fr)
DE (1) DE3767387D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2892230B2 (ja) * 1992-08-07 1999-05-17 アンデン株式会社 電磁継電器
CN101976634B (zh) * 2010-11-19 2013-01-02 四川宏发电声有限公司 一种继电器的磁路压入装置及用该装置对继电器进行整形的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE125199C (fr) *
US2332139A (en) * 1942-03-19 1943-10-19 Bendix Aviat Corp Electromagnetic apparatus
DE950490C (de) * 1952-08-31 1956-10-11 Standard Elek K Ag Elektromagnetisches Relais mit verschiebbarem Polschuh
US3174008A (en) * 1962-08-15 1965-03-16 North Electric Co Reed switch adjustment
DE1232638B (de) * 1963-06-20 1967-01-19 Licentia Gmbh Elektromagnetischer Zeitwaechter
BE786042A (fr) * 1970-12-02 1973-01-10 Int Standard Electric Corp Equipement de contact multipolaire place sous enveloppe scellee
US4206432A (en) * 1978-04-07 1980-06-03 International Standard Electric Corporation Electromagnetic relay
DE3312805C2 (de) * 1983-04-09 1985-04-18 Standard Elektrik Lorenz Ag, 7000 Stuttgart Elektromagnetisches Relais

Also Published As

Publication number Publication date
ATE60164T1 (de) 1991-02-15
US4803451A (en) 1989-02-07
EP0252343A1 (fr) 1988-01-13
JPS6324520A (ja) 1988-02-01
DE3767387D1 (de) 1991-02-21

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