EP0630517B1 - Relais de securite comportant un jeu de contacts guide et une commande monostable - Google Patents

Relais de securite comportant un jeu de contacts guide et une commande monostable Download PDF

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Publication number
EP0630517B1
EP0630517B1 EP94905055A EP94905055A EP0630517B1 EP 0630517 B1 EP0630517 B1 EP 0630517B1 EP 94905055 A EP94905055 A EP 94905055A EP 94905055 A EP94905055 A EP 94905055A EP 0630517 B1 EP0630517 B1 EP 0630517B1
Authority
EP
European Patent Office
Prior art keywords
armature
contact set
longitudinal axis
relay
drive
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
EP94905055A
Other languages
German (de)
English (en)
Other versions
EP0630517A1 (fr
Inventor
Eberhard Kirsch
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.)
Hengstler GmbH
Original Assignee
Hengstler Bauelemente GmbH
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 Hengstler Bauelemente GmbH filed Critical Hengstler Bauelemente GmbH
Publication of EP0630517A1 publication Critical patent/EP0630517A1/fr
Application granted granted Critical
Publication of EP0630517B1 publication Critical patent/EP0630517B1/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
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2227—Polarised relays in which the movable part comprises at least one permanent magnet, sandwiched between pole-plates, each forming an active air-gap with parts of the stationary magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/163—Details concerning air-gaps, e.g. anti-remanence, damping, anti-corrosion

Definitions

  • the present invention relates to a safety relay according to the preamble of claim 1, as known from EP-A-0 168 058.
  • a forced operation of this contact set means in a manner known per se that the actuator detects all switching springs and either brings them into one position or the other.
  • Such a safety relay has proven itself on a large scale, but it is desirable that the drive is assigned a smaller power consumption and that the known relay is miniaturized overall.
  • the invention is therefore based on the object of developing a safety relay of the type mentioned at the outset so that the entire relay is miniaturized with lower power consumption.
  • the invention is characterized by the technical teaching of claim 1.
  • An essential feature of the invention is that the drive system known per se with a hinged armature is replaced according to the invention by a drive system with an asymmetrically acting H-armature, and that this H-armature with its longitudinal axis is approximately parallel to the longitudinal axis of the drive coil is arranged and that the axis of rotation of this H-armature is arranged perpendicular to the longitudinal axis of the drive coil, and that furthermore the H-armature is magnetically asymmetrical.
  • An H-armature allows a large stroke, which - if the H-armature is magnetically symmetrical - acts symmetrically.
  • a monostable behavior of the relay can be achieved with a magnetically asymmetrical H-armature.
  • a non-polarized relay with a hinged armature does not have this characteristic, because with a hinged armature the initial force is reduced with increasing stroke, i.e. the initial force depends on the stroke, whereas this is not the case with an H anchor.
  • the initial force is the force that is required to bring the contacts of the contact set out of their rest position.
  • the entire components of this relay are first of all built smaller, which, however, with the
  • the disadvantage is that the contact distances between the individual springs also become relatively small, as a result of which the prescribed minimum distances between the contact springs are undershot.
  • Symmetrical H-anchors offer the possibility of achieving long travel distances, but at the same time they cause the drive to behave in a bistable manner. In order to achieve a monostable behavior, the magnetic effect of the H-armature is therefore shifted towards mechanical symmetry. The final forces of the drive become asymmetrical, which results in monostable behavior.
  • Definition of a monostable behavior is that after the drive excitation is omitted, the contact set moves automatically from its working position to its rest position.
  • the essence of the invention is therefore that, with a smaller volume of a safety relay of the type mentioned at the outset, the same contact distances are achieved as are present with a much larger safety relay.
  • the necessary increase in stroke is made possible by using an H-anchor.
  • the relay has a hood 1, which engages over a contact set carrier 2, which accommodates a number of components of the relay as a plastic part made of one piece of material.
  • the complete drive of the relay is latched as a latching part, the drive coil 3 with the yoke legs 4, 5 and the H armature 6 as assembled part can be snapped into the contact set carrier.
  • the yoke legs 4, 5 engage with lateral projections in assigned recesses 13 on the contact set carrier 2 and are locked there.
  • the H-armature has in its axis of rotation 11 a bearing journal, not shown, which also engages in an associated recess in the contact set carrier.
  • part of the contact set carrier 2 is an approximately U-shaped free bearing piece 10, which defines a central recess through which the bearing pin of the H-armature passes and is rotatably supported there.
  • the two yoke legs 4, 5 are bent approximately in a U-shape and lie against one another in the region of the inner coil tube 30, the two end sides of each yoke leg 4, 5 protruding on opposite sides of the drive coil 3.
  • the yoke legs 4, 5 engage in the space between the approximately H-shaped H armature, the H armature consisting essentially of two armature plates 7, 8 arranged parallel to one another, between which a permanent magnet 9 is arranged.
  • the permanent magnet 9 is overmolded together with the armature plates 7, 8, the armature plates being made of a ferromagnetic material.
  • recesses 40, 41 arranged next to the yoke legs 4.5 are arranged in the parts of the armature plates 7, 8 diagonally opposite one another with respect to the axis of rotation , which are filled with a dia- or paramagnetic material 43.
  • This material can e.g. B. be a plastic material or the like.
  • the H-anchor assumes a monostable position, because it pivots in the direction of arrow 31 in the counterclockwise direction about its axis of rotation 11 and engages with the parts of anchor plates 7, 8 opposite the recesses 40, 41 the associated yoke legs 4.5.
  • the resulting curve 36 then intersects the abscissa at position 37, the distance between position 37 and position 33 corresponding to half the difference 44.
  • this curve 36 intersects the straight line 34.
  • the stroke of the H-armature (ie the swivel angle) is now mechanically limited. This limits the high final force at item 45; the curve is broken off at the intersection 38 with the straight line 34 and the drive system has only the residual force 39.
  • This residual force 38 causes that when the H-armature 6 is in the Direction of arrow 31 opposite pivot position that this residual magnetic force 39 acts and this must be overcome by the contact set to reach the rest position.
  • the electromagnetic action of the coil 3 is superimposed on this force-stroke curve of the curve 36.
  • the curve 46 in FIG. 4 shows the resulting force-stroke curve, which acts on the contact set.
  • a final force is also achieved at item 47, which acts on the contact set.
  • the force-stroke curve of the contact set must run in the area between position 37 and curve 46 in order to achieve a monostable behavior of the relay. If the force-stroke curve of the contact set is outside, i.e. within the triangle delimited by pos. 37,38,48, then the behavior of the relay becomes bistable.
  • a plurality of contacts are each arranged in individual chambers that are chambered from one another, the individual chambers being chambered by chamber walls 14 (in the direction of the drive) and by further chamber walls 21, 22, 23.
  • the external limitation is made by the Front wall 24, on the outside of which a restoring spring 17 rests, the spring force of which can be changed with an adjusting screw 18 and which rests on the outside of the actuator 20 with its free, pivotable end.
  • Part of the contact set carrier 2 is a plastic body 15, which covers the yoke legs in the direction of the base plate 25.
  • the contacts 16 are guided in the form of connecting pins 19 through the base plate 25, the base plate 25 being integrally connected to the contact set carrier 2. It is important here that a large creepage distance between the individual adjacent pins 19 according to FIG. 2 is achieved. It is known per se to store the connecting pins in slots, these slots being formed going inwards from the outside of the base plate. This enables simple mounting of the connecting pins 19 in these slots.
  • Coil connections 29 are also arranged on the front side of the contact set carrier 2.
  • a safety relay with a positively driven contact set is thus ensured, in which it is now possible for the first time to still ensure high contact distances with relatively small overall dimensions of the relay, because with the use of the asymmetrically acting H armature, a large stroke of the actuator 20 is achieved and thus large contact distances are made possible.
  • the asymmetrical effect of the H-armature has the advantage that the contacts of the contact set are held in a defined position in the rest position, without the armature reacting on the contact set.
  • Another advantage of the invention is that the use of an asymmetrically acting H-armature 6 does not lead to undesired entrainment of welded contacts, even if the current through the coil 3 of the drive system is increased significantly. This is because even with a substantial increase in the current flow through the coil, the H-armature is only pivoted due to the difference in magnetic fluxes between the opposing armature plates 4, 5. This means that even when high currents are introduced into the coil of the drive system, the drive force on the contacts of the contact set remains limited to a certain value and there is therefore no risk that normally open contacts can also be closed in a welded opener because the drive force is not is sufficient to deform or bend the contact set in such a way that this impermissible state is reached. This is a major advantage of the asymmetrically acting H-anchor, which in conjunction with the described safety concept (positively driven contact set) leads to the success according to the invention.
  • the H-armature 6 has an overhead actuator plate 49, which is connected to the upper anchor plate 7 and against which the actuator 20 rests.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Fluid-Damping Devices (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Knitting Machines (AREA)
  • Control Of Combustion (AREA)
  • Cookers (AREA)
  • Relay Circuits (AREA)
  • Push-Button Switches (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Claims (1)

  1. Relais de sécurité comportant un jeu de contacts à guidage forcé et une commande monostable polarisée, dans lequel les différents jeux de ressorts de contact (16) sont séparés les uns des autres et il est prévu pour la commande un induit en H (6) dont l'axe longitudinal est à peu près parallèle à l'axe longitudinal de la bobine de commande (4) et dont l'axe de rotation (11) est perpendiculaire à l'axe longitudinal de la bobine de commande (3), caractérisé en ce que 1' induit en H (6) a une structure symétrique, mécaniquement, définie par deux plaques d'induit parallèles (7, 8) entre lesquelles pénètrent des branches de culasse (4, 5), et asymétrique, magnétiquement, définie par un aimant permanent (9) disposé entre les plaques d'induit (7, 8), l'induit en H est monté pivotant dans un élément formant palier (10) approximativement en U et défini par le support de jeu de contacts (2), et il est prévu asymétriquement, dans des parties opposées en diagonale des plaques d'induit (7, 8), des creux (40, 41) qui contiennent un matériau diamagnétique ou paramagnétique, étant précisé que l'élément d'actionnement (20) est déplacé par une plaque d'actionnement (49) disposée dans le prolongement de l'induit en H (6), et actionne conjointement les jeux de ressorts de contact (16).
EP94905055A 1993-01-13 1994-01-13 Relais de securite comportant un jeu de contacts guide et une commande monostable Expired - Lifetime EP0630517B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4300594 1993-01-13
DE4300594A DE4300594A1 (de) 1993-01-13 1993-01-13 Sicherheitsrelais mit zwangsgeführtem Kontaktsatz und monostabilem Antrieb
PCT/EP1994/000089 WO1994016456A1 (fr) 1993-01-13 1994-01-13 Relais de securite comportant un jeu de contacts guide et une commande monostable

Publications (2)

Publication Number Publication Date
EP0630517A1 EP0630517A1 (fr) 1994-12-28
EP0630517B1 true EP0630517B1 (fr) 1997-07-16

Family

ID=6478035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94905055A Expired - Lifetime EP0630517B1 (fr) 1993-01-13 1994-01-13 Relais de securite comportant un jeu de contacts guide et une commande monostable

Country Status (8)

Country Link
US (1) US5568108A (fr)
EP (1) EP0630517B1 (fr)
JP (1) JP3388473B2 (fr)
AT (1) ATE155609T1 (fr)
CA (1) CA2131889A1 (fr)
DE (2) DE4300594A1 (fr)
DK (1) DK0630517T3 (fr)
WO (1) WO1994016456A1 (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540739C2 (de) * 1995-07-11 1997-10-16 Dold & Soehne Kg E Relais mit zwangsgeführten Kontakten
DE19600314C2 (de) * 1996-01-06 1999-02-04 Hengstler Gmbh Relais mit zwangsgeführten Kontaktsätzen
EP0938119A1 (fr) * 1998-02-18 1999-08-25 ELESTA relays GmbH Relais
DE19847831C2 (de) 1998-10-16 2002-11-21 Tyco Electronics Austria Gmbh Sicherheitsrelais
ES2445990T3 (es) 2000-01-28 2014-03-06 Elesta Relays Gmbh Relé de seguridad, su uso y dispositivo de conexión con tal relé de seguridad
EP1143474B1 (fr) * 2000-04-03 2009-03-25 ELESTA relays GmbH Relais
EP1284492A3 (fr) * 2001-08-16 2004-11-24 Tyco Electronics AMP GmbH Relais électromagnétique et procédé pour le positionnement précis de sa bobine magnétique
DE10158023B4 (de) * 2001-11-27 2004-03-25 Matsushita Electric Works (Europe) Ag Relais-Kontaktanordnung
JP4424260B2 (ja) * 2005-06-07 2010-03-03 オムロン株式会社 電磁リレー
CH698492B1 (de) * 2006-03-20 2009-08-31 Elesta Relays Gmbh Relais.
US7710224B2 (en) * 2007-08-01 2010-05-04 Clodi, L.L.C. Electromagnetic relay assembly
US7659800B2 (en) * 2007-08-01 2010-02-09 Philipp Gruner Electromagnetic relay assembly
US8203403B2 (en) * 2009-08-27 2012-06-19 Tyco Electronics Corporation Electrical switching devices having moveable terminals
US8564386B2 (en) 2011-01-18 2013-10-22 Tyco Electronics Corporation Electrical switching device
US8222981B1 (en) * 2011-01-18 2012-07-17 Tyco Electronics Corporation Electrical switching device
US8514040B2 (en) 2011-02-11 2013-08-20 Clodi, L.L.C. Bi-stable electromagnetic relay with x-drive motor
JP4883232B1 (ja) * 2011-03-14 2012-02-22 オムロン株式会社 電磁継電器
JP5085754B2 (ja) * 2011-03-14 2012-11-28 オムロン株式会社 電磁継電器
EP2688083B1 (fr) * 2011-03-14 2019-07-03 Omron Corporation Relais électromagnétique
JP6025414B2 (ja) * 2011-09-30 2016-11-16 富士通コンポーネント株式会社 電磁継電器
DE102012006450A1 (de) 2012-03-30 2013-10-02 Phoenix Contact Gmbh & Co. Kg Relais mit zwangsgeführten Kontakten
CN202650990U (zh) * 2012-07-02 2013-01-02 宁波福特继电器有限公司 一种小型大功率磁保持继电器
DE102012017157A1 (de) * 2012-08-30 2014-03-06 Hengstler Gmbh Relais mit modifizierter Kraft-Weg-Kennlinie
JP6043173B2 (ja) * 2012-12-07 2016-12-14 富士通コンポーネント株式会社 電磁継電器
DE102016211931B4 (de) * 2016-06-30 2023-03-16 Te Connectivity Germany Gmbh Leistungsschütz mit hoher mechanischer Schockfestigkeit
DE102016219529A1 (de) * 2016-10-07 2018-04-12 Te Connectivity Germany Gmbh Elektrisches Schaltelement mit unmittelbarer Ankerkopplung
JP6836241B2 (ja) * 2016-12-27 2021-02-24 富士通コンポーネント株式会社 電磁継電器

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
DE2454967C3 (de) * 1974-05-15 1981-12-24 Hans 8024 Deisenhofen Sauer Gepoltes elektromagnetisches Relais
DE7902034U1 (de) * 1979-01-25 1980-10-16 Sauer, Hans, 8024 Deisenhofen Kontaktfederanordnung
DE3149816C2 (de) * 1981-12-16 1986-09-04 Diehl GmbH & Co, 8500 Nürnberg Polarisiertes Relais
US4563663A (en) * 1982-07-16 1986-01-07 Fujisoku Electric Co. Ltd. Core member for an electromagnetic relay
DE3324246C2 (de) * 1983-07-06 1985-11-28 Hengstler GmbH, 7209 Wehingen Polarisiertes, elektromagnetisches Relais
EP0157029A1 (fr) * 1984-04-04 1985-10-09 Omron Tateisi Electronics Co. Entraînement électromagnétique et relais polarisé
DE3585056D1 (de) * 1984-07-13 1992-02-13 Euro Matsushita Electric Works Sicherheitsrelais.
EP0225038B1 (fr) * 1985-10-25 1992-09-23 Nec Corporation Relais électromagnétique polarisé
DE3743122C1 (de) * 1987-12-18 1989-02-16 Sds Relais Ag Elektromagnetisches Schaltgeraet
JPH0424242U (fr) * 1990-06-20 1992-02-27
DE9013223U1 (de) * 1990-09-18 1992-02-06 Siemens AG, 80333 München Elektromagnetisches Leistungsrelais

Also Published As

Publication number Publication date
ATE155609T1 (de) 1997-08-15
JPH07504780A (ja) 1995-05-25
CA2131889A1 (fr) 1994-07-21
US5568108A (en) 1996-10-22
DK0630517T3 (da) 1998-02-09
DE59403362D1 (de) 1997-08-21
JP3388473B2 (ja) 2003-03-24
WO1994016456A1 (fr) 1994-07-21
DE4300594A1 (de) 1994-07-14
EP0630517A1 (fr) 1994-12-28

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