EP0252343A1 - 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
EP0252343A1
EP0252343A1 EP87108703A EP87108703A EP0252343A1 EP 0252343 A1 EP0252343 A1 EP 0252343A1 EP 87108703 A EP87108703 A EP 87108703A EP 87108703 A EP87108703 A EP 87108703A EP 0252343 A1 EP0252343 A1 EP 0252343A1
Authority
EP
European Patent Office
Prior art keywords
armature
relay
housing
pole plates
pole
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.)
Granted
Application number
EP87108703A
Other languages
German (de)
English (en)
Other versions
EP0252343B1 (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 parameters 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, resilient or spring-loaded armature.
  • the invention also 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 bending adjustment is only possible with a special construction and with special processes. For example, with one Multiple contact, as shown in DE-OS 20 59 390, the armature and its bearing spring after closing the contact space no longer accessible. Only after completion of the contact and its insertion in a relay can the response or relapse values be checked and evaluated for a targeted adjustment 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 and 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 is displaceably arranged so that the overlapping area of the pole faces is changed by gradually moving the displaceable element and the characteristic values for the response and / or falling of the relay are measured in each case and that the displaceable element is fixed in the housing if the measured characteristic values are in a predetermined range lie.
  • 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 in a displaceable manner in the housing, moved after assembly in the manner mentioned and fixed only after the desired characteristic values of the relay have been reached.
  • the armature is slidably mounted 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 carrier is preferably guided in the housing such that a displacement is only possible in the direction of the longitudinal axis of the armature and the pole plates. This means that in each case 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. It would also be conceivable to make the armature displaceable transversely to the longitudinal direction of the pole plates, then a change in the same direction of the overlap surfaces could be achieved with both pole plates.
  • 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 when the two housing parts are joined, 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, the response or release voltage of the relay being measured in each case, 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 preferably 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 mutually opposing pole plates and a flat armature, which is mounted 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.
  • the anchor carrier sits in the form of a frame and is arranged and fixed in a circumferential groove which exceeds the length of the anchor carrier at least in one direction, 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 by means of a resilient support 9.
  • the bridge armature 8 is arranged so that it ends with the ends of both pole plates 6 and 7 by the same length a overlaps so that - with the same width of the parts - equally large air gap surfaces are formed between the armature 8 on the one hand and each of the pole plates 6 and 7 on the other.
  • the response values and the release values of the relay ie the voltages, can be different due to the other manufacturing tolerances.
  • 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 to 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 embedding would also be possible.
  • the pole plate 6 has in the flange 2a of the base part 2 a connection element 6a formed transversely to its longitudinal extent in the same plane, which outside the base body is bent perpendicularly downwards to the connection level of the relay. There it can be designed as a conventional connecting pin or shaped into a flat contact 6b as shown in FIG. 3.
  • 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 The 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. These expediently takes place in small steps, the response and dropout voltage of the relay being measured in each case via 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 fixation 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.
  • 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.
  • anchor the anchor with its anchor carrier in the to embed a housing part and to slidably mount the pole plates in a groove formed in the parting plane of the two housing parts and to fix them only afterwards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Breakers (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Relay Circuits (AREA)
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 true EP0252343A1 (fr) 1988-01-13
EP0252343B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269481A (en) * 1992-08-07 1994-02-09 Anden Company Limited Electromagnetic switch.
CN101976634A (zh) * 2010-11-19 2011-02-16 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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4206432A (en) * 1978-04-07 1980-06-03 International Standard Electric Corporation Electromagnetic relay
EP0125199A1 (fr) * 1983-04-09 1984-11-14 International Standard Electric Corporation Relais électromagnétique

Family Cites Families (3)

* 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
BE786042A (fr) * 1970-12-02 1973-01-10 Int Standard Electric Corp Equipement de contact multipolaire place sous enveloppe scellee

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4206432A (en) * 1978-04-07 1980-06-03 International Standard Electric Corporation Electromagnetic relay
EP0125199A1 (fr) * 1983-04-09 1984-11-14 International Standard Electric Corporation Relais électromagnétique

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269481A (en) * 1992-08-07 1994-02-09 Anden Company Limited Electromagnetic switch.
US5339059A (en) * 1992-08-07 1994-08-16 Anden Co., Ltd. Electromagnetic relay
GB2269481B (en) * 1992-08-07 1996-07-24 Anden Company Limited Electromagnetic switch
CN101976634A (zh) * 2010-11-19 2011-02-16 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
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

Also Published As

Publication number Publication date
DE3767387D1 (de) 1991-02-21
ATE60164T1 (de) 1991-02-15
US4803451A (en) 1989-02-07
EP0252343B1 (fr) 1991-01-16
JPS6324520A (ja) 1988-02-01

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