EP0501951B1 - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

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Publication number
EP0501951B1
EP0501951B1 EP89912404A EP89912404A EP0501951B1 EP 0501951 B1 EP0501951 B1 EP 0501951B1 EP 89912404 A EP89912404 A EP 89912404A EP 89912404 A EP89912404 A EP 89912404A EP 0501951 B1 EP0501951 B1 EP 0501951B1
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EP
European Patent Office
Prior art keywords
armature
contact system
contact
relay
partition
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
EP89912404A
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German (de)
French (fr)
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EP0501951A1 (en
Inventor
Helmut Schedele
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
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT89912404T priority Critical patent/ATE95946T1/en
Priority to DE89912404T priority patent/DE58905926D1/en
Publication of EP0501951A1 publication Critical patent/EP0501951A1/en
Application granted granted Critical
Publication of EP0501951B1 publication Critical patent/EP0501951B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/026—Details concerning isolation between driving and switching 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
    • H01H2050/028—Means to improve the overall withstanding voltage, e.g. creepage distances
    • 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

Definitions

  • the invention relates to an electromagnetic relay with a magnet system with coil, core and armature, a contact system arranged adjacent to the coil with at least one movable contact element and with an actuating element made of insulating material which is arranged in the region between the magnet system and the contact system and which can be moved by the armature extends as a movable partition essentially over the entire area between the metal parts of the magnet system on the one hand and the contact system on the other.
  • Such a relay is already known from DE-27 33 800-A1, the magnet system being arranged next to the contact system on a common floor.
  • the contact elements are actuated via an angular armature, the actuating leg of which lies approximately parallel to the coil axis between the coil and the contact system and moves an essentially parallelepiped-shaped actuating part.
  • This actuating part is at the same time a carrier for the movable elements of bridge contact units. Since the mentioned actuating part in the known relay is supposed to extend essentially over the entire length of the interior of the relay, it acts as an insulating partition between the magnet system and the contact system.
  • the insulating distances (creepage distances and clearances) that are to be measured at the side of the actuating element are not sufficient for certain applications if the overall dimensions of the relay are to be reduced to a certain size.
  • the aim of the invention is to design a relay of the type mentioned at the outset in such a way that very large insulating distances between the magnet system and the contact system can be obtained with the fewest possible, easy-to-assemble individual parts with extremely small overall dimensions.
  • this aim is achieved in that the actuating element at least partially encloses the magnet system and / or the contact system in a trough-shaped manner with side walls formed on the partition wall and directed towards the magnet system and / or the contact system.
  • the actuator In the relay according to the invention, very large insulating distances between the contact elements and the magnet system are thus created in comparison to the overall dimensions of the relay in that the actuator with a trough or trough-shaped design encloses either the contact system or the magnet system or both.
  • the actuator or the part in question therefore has a U-shaped cross section in the former case.
  • the actuating member In the latter case, which is particularly advantageous and ensures particularly long insulating distances, the actuating member has an H-shaped cross section.
  • the invention is therefore particularly advantageously applicable to a relay whose magnet system has the structure of a conventional angle armature system, but the angular armature unit is no longer made entirely of metal. Rather, the ferromagnetic, essentially plate-shaped armature is connected to the actuating member in such a way that the actuating member forms the second leg of the angle armature unit.
  • the plate-shaped armature itself can be more or less enclosed by the insulating actuating member, it only being necessary to ensure that the ferromagnetic armature has a free pole face opposite the core pole face.
  • the connection between the ferromagnetic armature part and the actuating member can be designed as a plug connection, but better as an adhesive connection or in particular as an embedding.
  • the actuating element or the armature unit formed as an actuating element and armature can be mounted on the yoke via the armature.
  • the relay shown in Figures 1 to 5 has a housing 1 in the form of a protective cap, the open side of which faces downwards, that is to the installation level of the relay.
  • a magnet system is arranged, consisting of a coil winding 2 on a coil former 3, an axially extending core 4 through the coil and an angular yoke 5, which with a perpendicular leg 51 with the Core 4 is connected and extends with a leg 52 running horizontally below the coil parallel to the coil axis and the axis of the core.
  • the free end of the core 4 forms a pole plate 41 which is opposed by an armature 6 in the form of a ferromagnetic plate.
  • the armature 6 is connected to an actuator 7 to form a fixed armature unit.
  • the armature 6 is embedded or glued into a side wall 71 of the confirmation member such that essentially only the pole face 61, opposite the core pole plate 41, is exposed.
  • Other fastening methods such as ultrasonic welding and the like, can of course also be used for the connection between the armature and the actuating member.
  • the side wall 71 of the actuating member 7 continues into a circumferential wall 72 and thus forms an upwardly open trough 73 which partially encloses the magnet system.
  • the actuating member also forms a circumferential wall 74 towards the underside, which thus has a trough 75 which is open at the bottom forms which partially encloses a contact system 8.
  • Both troughs 75 and 73 are delimited from one another by a common floor or a partition 76, as a result of which the contact system 8 is insulated from the coil and from the yoke.
  • the partition 76 runs essentially parallel to the coil axis and perpendicular to the armature 6. It thus forms the second leg of an angle armature unit formed from the armature 6 and the actuating member 7. Due to the circumferential side walls 72 and 74, the actuating member is also sufficiently stiffened so that it does not bend when actuated.
  • the side walls 72 and 74 also result in very long air and creepage distances between the contact system 8 and the coil 2 and also the metallic parts of the magnetic circuit compared to the overall dimensions of the relay.
  • the contact system is constructed on an insulating carrier 81, which consists in one piece of a plate-shaped base part 82, a fastening block 83 and a cover part 84.
  • Receiving slots 85 are formed in the fastening block 83 from both sides (only visible on one side in FIG. 6), into which a contact spring 91 with a folded fastening part 92 and a mating contact spring 93 with a folded fastening part 94 are inserted.
  • Each of the contact elements 91 and 93 has a connecting pin 95 or 96 formed by folding the spring plate.
  • Folding gives the fastening part 92 or 94 the thickness and stability required for the plug-in fastening, the sections lying one above the other also being welded as required 98 can be connected.
  • the bent section also forms a protruding edge 99, on which an assembly tool for pressing the respective contact element 91 or 93 into the carrier 81 can be attached.
  • the contact spring 91 is freely movable outside of its clamping point. At its free end 97, it is actuated via an actuating pin 77 of the actuating member 7 in accordance with the switching movement of the armature.
  • the cover part 84 of the carrier 81 forms an additional insulating wall between the contact system and the magnet system, only the free end 97 of the contact spring 91 protruding for the purpose of actuation. If a third insulating layer is required in addition to the partition wall 76 and the cover part 84, an additional film 86 can be placed or glued onto the latter, as indicated in FIG. 1, but is not shown in FIG. 6.
  • cover part 84 has to be made smaller for functional reasons, it is expedient to apply one or more foils to the partition 76. It is also possible to design the partition 76 by spaces so that at least three insulating walls are formed.
  • the complete armature unit consisting of the armature 6 and the actuating member 7, is first placed on the magnet system, a bearing edge 62 formed on the armature being inserted into a bearing notch 53 of the yoke.
  • This completed magnet system is then inserted into the housing 1, the coil, consisting of winding 2 and coil body 3, preferably being clamped or glued in the closed end part of the housing 1.
  • the anchor unit is thus secured against falling out by the side wall 11 of the housing 1.
  • the contact system 8 is then inserted into the open side of the housing 1, the offset edge region 12 of the housing forming a straight guide for the base 82 of the contact system.
  • the outer edge 82a of this base 82 is largely adapted to the contour of the housing edge 12; However, it has some recesses for carrying out the contact pin 95 and 96 and the insulating sheath 31 of the coil pins 10.
  • the base 82 is not guided against a stop of the housing when inserted, but inserted so far when the magnet system is excited until the contact spring 91 through the Pimpel 77 is actuated and the contact with the mating contact element 93 is closed. Then the excitation of the relay is switched off, so that the contact opens.
  • the contact system 8 is now additionally inserted by a predetermined amount, with which a certain erosion safety of the contacts is guaranteed.
  • the contact system that is to say the base 82, is then fixed relative to the housing, which can be done, for example, by means of a quick adhesive.
  • a cover plate 13 is pushed over the connecting pins 95, 96 and 10. Potting compound 14 is then introduced from the outside into the space formed by the cover plate 13 and the housing edge 12, thereby completing the sealing of the housing.
  • a ventilation hole can be provided in the housing in the usual way, which is opened during or after sealing and closed later.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Abstract

The relay of the invention has an actuation member (7) linked to the armature (6) and which covers by means of a partition (76) the whole of the surface between the magnet system (2, 4, 5) and the contact system (8), as well as covering with integral side walls (71, 72, 74) in the form of a tub the contact system (8) and/or magnet system (2, 3, 4, 5). A relay of this design has small dimensions but very long leakage distances and very large air gaps between the coil and the contact system.

Description

Die Erfindung betrifft ein elektromagnetisches Relais mit einem Magnetsystem mit Spule, Kern und Anker, einem benachbart zur Spule angeordneten Kontaktsystem mit mindestens einem beweglichen Kontaktelement und mit einem im Bereich zwischen dem Magnetsystem und dem Kontaktsystem angeordneten Betätigungselement aus Isolierstoff welches durch den Anker bewegbar ist und sich als bewegliche Trennwand im wesentlichen über die gesamte Fläche zwischen den Metallteilen des Magnetsystems einerseits und des Kontaktsystems andererseits erstreckt.The invention relates to an electromagnetic relay with a magnet system with coil, core and armature, a contact system arranged adjacent to the coil with at least one movable contact element and with an actuating element made of insulating material which is arranged in the region between the magnet system and the contact system and which can be moved by the armature extends as a movable partition essentially over the entire area between the metal parts of the magnet system on the one hand and the contact system on the other.

Aus der DE-27 33 800-A1 ist bereits ein derartiges Relais bekannt, wobei das Magnetsystem neben dem Kontaktsystem auf einem gemeinsamen Boden angeordnet ist. Die Betätigung der Kontaktelemente erfolgt über einen winkelförmigen Anker, dessen Betätigungsschenkel annähernd parallel zur Spulenachse zwischen Spule und Kontaktsystem liegt und ein im wesentlichen parallel dazu angeordnetes, quaderförmiges Betätigungsteil bewegt. Dieses Betätigungsteil ist dort gleichzeitig Träger für die beweglichen Elemente von Brückenkontakteinheiten. Da sich das erwähnte Betätigungsteil bei dem bekannten Relais im wesentlichen über die gesamte Länge des Innenraums des Relais erstrecken soll, wirkt es als isolierende Trennwand zwischen Magnetsystem und Kontaktsystem. Allerdings sind die Isolierstrecken (Kriech- und Luftstrecken), die seitlich am Rande des Betätigungselementes zu messen sind, für bestimmte Anwendungsfälle nicht ausreichend, wenn die Gesamtabmessungen des Relais auf ein bestimmtes Maß verkleinert werden sollen. Zudem ist es für eine Miniaturisierung des Relais hinderlich, daß zwischen Magnetsystem und dem Betätigungselement ein Ankerarm liegt, der verhältnismäßig viel Platz beansprucht.Such a relay is already known from DE-27 33 800-A1, the magnet system being arranged next to the contact system on a common floor. The contact elements are actuated via an angular armature, the actuating leg of which lies approximately parallel to the coil axis between the coil and the contact system and moves an essentially parallelepiped-shaped actuating part. This actuating part is at the same time a carrier for the movable elements of bridge contact units. Since the mentioned actuating part in the known relay is supposed to extend essentially over the entire length of the interior of the relay, it acts as an insulating partition between the magnet system and the contact system. However, the insulating distances (creepage distances and clearances) that are to be measured at the side of the actuating element are not sufficient for certain applications if the overall dimensions of the relay are to be reduced to a certain size. In addition, it is a hindrance for miniaturization of the relay that there is an armature arm between the magnet system and the actuating element, which arm takes up a relatively large amount of space.

Aus der DE-28 30 390-A1 ist weiterhin ein elektromagnetisches Relais der eingangs genannten Art bekannt, bei der ein polarisiertes Magnetsystem mit einem sogenannten H-Anker oberhalb des Kontaktsystems liegt und ein mit dem Anker verbundener Kunststoffteil einen im wesentlichen plattenförmigen Abschnitt zur Übertragung der Ankerbewegung auf das Kontaktsystem aufweist. Auch dort gilt, daß die Kriech- und Luftstrecken zwischen dem Kontaktsystem und den Metallteilen des Magnetsystems im Randbereich des Betätigungsteiles sehr hohen Isolationsanforderungen nicht genügen und daß andererseits der Anker mit dem erwähnten plattenförmigen Betätigungsteil sowie mit zusätzlich zwischengeschalteten weiteren Betätigungsteilen verhältnismäßig viel Volumen benötigt, was einer extremen Miniaturisierung eines derartigen Relais bei gleichzeitig hoher Spannungsfestigkeit widerspricht.From DE-28 30 390-A1 is an electromagnetic Relay of the type mentioned is known, in which a polarized magnet system with a so-called H-armature lies above the contact system and a plastic part connected to the armature has an essentially plate-shaped section for transmitting the armature movement to the contact system. It also applies that the creepage distances and clearances between the contact system and the metal parts of the magnet system in the edge region of the actuating part do not meet very high insulation requirements and that, on the other hand, the armature with the plate-shaped actuating part mentioned and also with additional interposed additional actuating parts requires a relatively large volume, which one extreme miniaturization of such a relay contradicts high dielectric strength.

Ziel der Erfindung ist es, ein Relais der eingangs genannten Art so auszubilden, daß mit möglichst wenigen, einfach zu montierenden Einzelteilen bei äußerst geringen Gesamtabmessungen sehr große Isolierstrecken zwischen Magnetsystem und Kontaktsystem gewonnen werden.The aim of the invention is to design a relay of the type mentioned at the outset in such a way that very large insulating distances between the magnet system and the contact system can be obtained with the fewest possible, easy-to-assemble individual parts with extremely small overall dimensions.

Erfindungsgemäß wird dieses Ziel dadurch erreicht, daß das Betätigungselement mit an der Trennwand angeformten, zum Magnetsystem und/oder zum Kontaktsystem gerichteten Seitenwänden das Magnetsystem und/oder das Kontaktsystem wannenförmig zumindest teilweise umschließt.According to the invention, this aim is achieved in that the actuating element at least partially encloses the magnet system and / or the contact system in a trough-shaped manner with side walls formed on the partition wall and directed towards the magnet system and / or the contact system.

Bei dem erfindungsgemäßen Relais werden also im Vergleich zu den Gesamtabmessungen des Relais sehr große Isolierstrecken zwischen den Kontaktelementen und dem Magnetsystem dadurch geschaffen, daß das Betätigungsorgan mit einer trog- oder wannenförmigen Gestaltung entweder das Kontaktsystem oder das Magnetsystem oder auch beide umschließt. Das Betätigungsorgan bzw. der betreffende Teil besitzt also im ersteren Fall einen U-förmigen Querschnitt. Im letzteren Fall, der besonders vorteilhaft ist und besonders lange Isolierstrecken gewährleistet, besitzt das Betätigungsorgan einen H-förmigen Querschnitt. Durch diese Form einer Wanne oder einer Doppelwanne ist das Betätigungsorgan auch sehr stabil gegen Deformationen, so daß es auch ohne zusätzliche Verstärkungsrippen die Ankerbewegung exakt auf das Kontaktsystem übertragen kann.In the relay according to the invention, very large insulating distances between the contact elements and the magnet system are thus created in comparison to the overall dimensions of the relay in that the actuator with a trough or trough-shaped design encloses either the contact system or the magnet system or both. The actuator or the part in question therefore has a U-shaped cross section in the former case. In the latter case, which is particularly advantageous and ensures particularly long insulating distances, the actuating member has an H-shaped cross section. Through this In the form of a tub or a double tub, the actuator is also very stable against deformation, so that it can transmit the armature movement exactly to the contact system even without additional reinforcing ribs.

Die Erfindung ist deshalb mit besonderem Vorteil auf ein Relais anwendbar, dessen Magnetsystem den Aufbau eines herkömmlichen Winkelankersystems besitzt, wobei die winkelförmige Ankereinheit jedoch nicht mehr vollständig aus Metall besteht. Vielmehr wird dabei der ferromagnetische, im wesentlichen plattenförmige Anker so mit dem Betätigungsorgan verbunden, daß das Betätigungsorgan den zweiten Schenkel der Winkelankereinheit bildet. Der plattenförmige Anker selbst kann von dem isolierenden Betätigungsorgan mehr oder weniger umschlossen sein, wobei lediglich sichergestellt werden muß, daß der ferromagnetische Anker eine freie Polfläche gegenüber der Kernpolfläche aufweist. Die Verbindung zwischen dem ferromagnetischen Ankerteil und dem Betätigungsorgan kann als Steckverbindung, besser jedoch als Klebeverbindung oder insbesondere als Einbettung ausgebildet sein. In einer besonderen Ausführungsform kann das Betätigungselement bzw. die als Betätigungselement und Anker gebildete Ankereinheit über den Anker an dem Joch gelagert sein.The invention is therefore particularly advantageously applicable to a relay whose magnet system has the structure of a conventional angle armature system, but the angular armature unit is no longer made entirely of metal. Rather, the ferromagnetic, essentially plate-shaped armature is connected to the actuating member in such a way that the actuating member forms the second leg of the angle armature unit. The plate-shaped armature itself can be more or less enclosed by the insulating actuating member, it only being necessary to ensure that the ferromagnetic armature has a free pole face opposite the core pole face. The connection between the ferromagnetic armature part and the actuating member can be designed as a plug connection, but better as an adhesive connection or in particular as an embedding. In a special embodiment, the actuating element or the armature unit formed as an actuating element and armature can be mounted on the yoke via the armature.

In den Unteransprüchen sind noch weitere Ausgestaltungen des erfindungsgemäßen Relais genannt.Further embodiments of the relay according to the invention are mentioned in the subclaims.

Nachfolgend wird die Erfindung an einem Ausführungsbeispiel anhand der Zeichnung näher erläutert. Es zeigen

  • Figur 1 ein erfindungsgemäß gestaltetes Relais im Längsschnitt,
  • Figuren 2 bis 5 weitere Schnittansichten des in Figur 1 gezeigten Relais und
  • Figur 6 das Kontaktsystem aus Figur 1 in Explosionsdarstellung.
The invention is explained in more detail using an exemplary embodiment with reference to the drawing. Show it
  • 1 shows a relay designed according to the invention in longitudinal section,
  • Figures 2 to 5 further sectional views of the relay shown in Figure 1 and
  • Figure 6 shows the contact system of Figure 1 in an exploded view.

Das in den Figuren 1 bis 5 gezeigte Relais besitzt ein Gehäuse 1 in Form einer Schutzkappe, deren offene Seite nach unten, also zur Einbauebene des Relais weist. Im oberen Bereich, also im geschlossenen Teil des Gehäuses 1, ist ein Magnetsystem angeordnet, bestehend aus einer Spulenwicklung 2 auf einem Spulenkörper 3, einem axial durch die Spule verlaufenden Kern 4 und einem winkelförmigen Joch 5, welches mit einem senkrecht verlaufenden Schenkel 51 mit dem Kern 4 verbunden ist und sich mit einem waagerecht unterhalb der Spule verlaufenden Schenkel 52 parallel zur Spulenachse und zur Achse des Kernes erstreckt. Das freie Ende des Kerns 4 bildet eine Polplatte 41, welcher ein Anker 6 in Form einer ferromagnetischen Platte gegenübersteht.The relay shown in Figures 1 to 5 has a housing 1 in the form of a protective cap, the open side of which faces downwards, that is to the installation level of the relay. In the upper area, i.e. in the closed part of the housing 1, a magnet system is arranged, consisting of a coil winding 2 on a coil former 3, an axially extending core 4 through the coil and an angular yoke 5, which with a perpendicular leg 51 with the Core 4 is connected and extends with a leg 52 running horizontally below the coil parallel to the coil axis and the axis of the core. The free end of the core 4 forms a pole plate 41 which is opposed by an armature 6 in the form of a ferromagnetic plate.

Der Anker 6 ist mit einem Betätigungsorgan 7 zu einer festen Ankereinheit verbunden. Dabei ist der Anker 6 in eine Seitenwand 71 des Bestätigungsorgans eingebettet oder eingeklebt, derart, daß im wesentlichen nur die Polfläche 61, der Kernpolplatte 41 gegenüberliegend, freiliegt. Für die Verbindung zwischen Anker und Betätigungsorgan sind natürlich auch andere Befestigungsverfahren, wie Ultraschallverschweißen und dergleichen, anwendbar. Die Seitenwand 71 des Betätigungsorgans 7 setzt sich in eine umlaufende Wand 72 fort und bildet damit eine nach oben offene, das Magnetsystem teilweise umschließende Wanne 73. Außerdem bildet das Betätigungsorgan auch zur Unterseite hin eine umlaufende Wand 74, welche somit eine nach unten offene Wanne 75 bildet, die ein Kontaktsystem 8 teilweise umschließt. Beide Wannen 75 und 73 sind durch einen gemeinsamen Boden bzw. eine Trennwand 76 gegeneinander abgegrenzt, wodurch das Kontaktsystem 8 von der Spule und vom Joch isoliert ist. Die Trennwand 76 verläuft im wesentlichen parallel zur Spulenachse und senkrecht zum Anker 6. Sie bildet somit den zweiten Schenkel einer aus dem Anker 6 und dem Betätigungsorgan 7 gebildeten Winkelankereinheit. Durch die umlaufenden Seitenwände 72 und 74 ist das Betätigungsorgan auch genügend versteift, so das es sich bei Betätigung nicht durchbiegt. Die Seitenwände 72 und 74 ergeben außerdem im Vergleich zu den Gesamtabmessungen des Relais sehr lange Luft- und Kriechstrecken zwischen dem Kontaktsystem 8 und der Spule 2 bzw. auch den metallischen Teilen des Magnetkreises.The armature 6 is connected to an actuator 7 to form a fixed armature unit. The armature 6 is embedded or glued into a side wall 71 of the confirmation member such that essentially only the pole face 61, opposite the core pole plate 41, is exposed. Other fastening methods, such as ultrasonic welding and the like, can of course also be used for the connection between the armature and the actuating member. The side wall 71 of the actuating member 7 continues into a circumferential wall 72 and thus forms an upwardly open trough 73 which partially encloses the magnet system. In addition, the actuating member also forms a circumferential wall 74 towards the underside, which thus has a trough 75 which is open at the bottom forms which partially encloses a contact system 8. Both troughs 75 and 73 are delimited from one another by a common floor or a partition 76, as a result of which the contact system 8 is insulated from the coil and from the yoke. The partition 76 runs essentially parallel to the coil axis and perpendicular to the armature 6. It thus forms the second leg of an angle armature unit formed from the armature 6 and the actuating member 7. Due to the circumferential side walls 72 and 74, the actuating member is also sufficiently stiffened so that it does not bend when actuated. The side walls 72 and 74 also result in very long air and creepage distances between the contact system 8 and the coil 2 and also the metallic parts of the magnetic circuit compared to the overall dimensions of the relay.

Das Kontaktsystem ist im vorliegenden Fall auf einem isolierenden Träger 81 aufgebaut, der einstückig aus einem plattenförmigen Sockelteil 82, einem Befestigungsblock 83 und einem Deckelteil 84 besteht. In den Befestigungsblock 83 sind von beiden Seiten jeweils Aufnahmeschlitze 85 eingeformt (in Figur 6 nur an einer Seite zu sehen), in welche eine Kontaktfeder 91 mit einem gefalteten Befestigungsteil 92 sowie eine Gegenkontaktfeder 93 mit einem gefalteten Befestigungsteil 94 eingesteckt sind. Jedes der Kontaktelemente 91 und 93 besitzt einen durch Faltung des Federblechs gebildeten Anschlußstachel 95 bzw. 96. Durch das Falten erhält der Befestigungsteil 92 bzw. 94 jeweils die für die Steckbefestigung erforderliche Dicke und Stabilität, wobei die übereinander liegenden Abschnitte nach Bedarf auch durch eine Schweißung 98 verbunden sein können. Der umgebogene Abschnitt bildet außerdem jeweils eine überstehende Kante 99, an der ein Montagewerkzeug zum Einpressen des jeweiligen Kontaktelementes 91 bzw. 93 in den Träger 81 angesetzt werden kann.In the present case, the contact system is constructed on an insulating carrier 81, which consists in one piece of a plate-shaped base part 82, a fastening block 83 and a cover part 84. Receiving slots 85 are formed in the fastening block 83 from both sides (only visible on one side in FIG. 6), into which a contact spring 91 with a folded fastening part 92 and a mating contact spring 93 with a folded fastening part 94 are inserted. Each of the contact elements 91 and 93 has a connecting pin 95 or 96 formed by folding the spring plate. Folding gives the fastening part 92 or 94 the thickness and stability required for the plug-in fastening, the sections lying one above the other also being welded as required 98 can be connected. The bent section also forms a protruding edge 99, on which an assembly tool for pressing the respective contact element 91 or 93 into the carrier 81 can be attached.

Die Kontaktfeder 91 ist außerhalb ihrer Einspannstelle frei beweglich. An ihrem freien Ende 97 wird sie über einen Betätigungspimpel 77 des Betätigungsorgans 7 entsprechend der Schaltbewegung des Ankers betätigt. Der Deckelteil 84 des Trägers 81 bildet eine zusätzliche Isolierwand zwischen dem Kontaktsystem und dem Magnetsystem, wobei lediglich das freie Ende 97 der Kontaktfeder 91 zum Zwecke der Betätigung vorsteht. Soweit eine dritte Isolierschicht zusätzlich zu der Trennwand 76 und dem Deckelteil 84 erforderlich ist, kann auf letzteres eine zusätzliche Folie 86 aufgelegt bzw. aufgeklebt werden, wie sie in Figur 1 angedeutet, in Figur 6 jedoch nicht gezeigt ist.The contact spring 91 is freely movable outside of its clamping point. At its free end 97, it is actuated via an actuating pin 77 of the actuating member 7 in accordance with the switching movement of the armature. The cover part 84 of the carrier 81 forms an additional insulating wall between the contact system and the magnet system, only the free end 97 of the contact spring 91 protruding for the purpose of actuation. If a third insulating layer is required in addition to the partition wall 76 and the cover part 84, an additional film 86 can be placed or glued onto the latter, as indicated in FIG. 1, but is not shown in FIG. 6.

Wenn der Deckelteil 84 aus Funktionsgründen kleiner ausgeführt werden muß, ist es zweckmäßig, eine oder mehrere Folien auf die Trennwand 76 aufzubringen. Auch ist es möglich, die Trennwand 76 durch Zwischenräume so zu gestalten, daß mindestens drei Isolierwände entstehen.If the cover part 84 has to be made smaller for functional reasons, it is expedient to apply one or more foils to the partition 76. It is also possible to design the partition 76 by spaces so that at least three insulating walls are formed.

Anstelle des im Beispiel gezeigten einen Schließers kann natürlich auch ein beliebiger anderer Federsatz in dem Relais verwendet werden, beispielsweise ein Öffner, ein Umschalter oder auch ein Federsatz mit mehreren Einheiten.Instead of the one normally open contact shown in the example, it is of course also possible to use any other spring set in the relay, for example an opener, a changeover switch or a spring set with several units.

Bei der Montage des Relais wird zunächst die komplette Ankereinheit, bestehend aus dem Anker 6 und dem Betätigungsorgan 7, auf das Magnetsystem aufgesetzt, wobei eine am Anker angeformte Lagerschneide 62 in eine Lagerkerbe 53 des Joches eingesetzt wird. Dieses damit komplettierte Magnetsystem wird dann in das Gehäuse 1 eingeschoben, wobei die Spule, bestehend aus Wicklung 2 und Spulenkörper 3, vorzugsweise im geschlossenen Endteil des Gehäuses 1 festgeklemmt bzw. festgeklebt wird. Die Ankereinheit wird damit durch die Seitenwand 11 des Gehäuses 1 gegen Herausfallen gesichert.When installing the relay, the complete armature unit, consisting of the armature 6 and the actuating member 7, is first placed on the magnet system, a bearing edge 62 formed on the armature being inserted into a bearing notch 53 of the yoke. This completed magnet system is then inserted into the housing 1, the coil, consisting of winding 2 and coil body 3, preferably being clamped or glued in the closed end part of the housing 1. The anchor unit is thus secured against falling out by the side wall 11 of the housing 1.

In die offene Seite des Gehäuses 1 wird dann das Kontaktsystem 8 eingesetzt, wobei der abgesetzte Randbereich 12 des Gehäuses eine Geradführung für den Sockel 82 des Kontaktsystems bildet. Der Außenrand 82a dieses Sockels 82 ist weitgehend an die Kontur des Gehäuserandes 12 angepaßt; er besitzt jedoch einige Ausnehmungen zur Durchführung der Kontakt-Anschlußstachel 95 und 96 sowie der Isolierummantelung 31 der Spulenanschlußstifte 10. Der Sockel 82 wird beim Einschieben nicht gegen einen Anschlag des Gehäuses geführt, sondern bei erregtem Magnetsystem soweit eingeschoben, bis die Kontaktfeder 91 durch den Pimpel 77 betätigt und der Kontakt mit dem Gegenkontaktelement 93 geschlossen wird. Danach wird die Erregung des Relais abgeschaltet, so daß sich der Kontakt öffnet. Das Kontaktsystem 8 wird nunmehr zusätzlich um einen vorgegebenen Betrag eingeschoben, mit dem eine bestimmte Abbrandsicherheit der Kontakte gewährleistet wird. Danach wird das Kontaktsystem, also der Sockel 82, gegenüber dem Gehäuse fixiert, was beispielsweise mittels eines Schnellklebers geschehen kann.The contact system 8 is then inserted into the open side of the housing 1, the offset edge region 12 of the housing forming a straight guide for the base 82 of the contact system. The outer edge 82a of this base 82 is largely adapted to the contour of the housing edge 12; However, it has some recesses for carrying out the contact pin 95 and 96 and the insulating sheath 31 of the coil pins 10. The base 82 is not guided against a stop of the housing when inserted, but inserted so far when the magnet system is excited until the contact spring 91 through the Pimpel 77 is actuated and the contact with the mating contact element 93 is closed. Then the excitation of the relay is switched off, so that the contact opens. The contact system 8 is now additionally inserted by a predetermined amount, with which a certain erosion safety of the contacts is guaranteed. The contact system, that is to say the base 82, is then fixed relative to the housing, which can be done, for example, by means of a quick adhesive.

Zur Abdichtung der verbleibenden Öffnungen im Boden wird eine Abdeckplatte 13 über die Anschlußstifte 95, 96 und 10 geschoben. In dem durch die Abdeckplatte 13 und den Gehäuserand 12 gebildeten Raum wird dann von außen Vergußmasse 14 eingebracht, womit die Abdichtung des Gehäuses vollendet wird. Dabei kann natürlich in üblicher Weise im Gehäuse ein Lüftungsloch vorgesehen sein, welches während oder auch nach der Abdichtung geöffnet und später verschlossen wird.To seal the remaining openings in the floor, a cover plate 13 is pushed over the connecting pins 95, 96 and 10. Potting compound 14 is then introduced from the outside into the space formed by the cover plate 13 and the housing edge 12, thereby completing the sealing of the housing. Of course, a ventilation hole can be provided in the housing in the usual way, which is opened during or after sealing and closed later.

BezugszeichenlisteReference symbol list

11
Gehäusecasing
22nd
SpulenwicklungCoil winding
33rd
SpulenkörperBobbin
44th
Kerncore
55
Jochyoke
66
Ankeranchor
77
BetätigungsorganActuator
88th
KontaktsystemContact system
1010th
SpulenanschlußstiftCoil connector pin
1111
SeitenwandSide wall
1212
RandbereichEdge area
1313
AbdeckplatteCover plate
1414
VergußmasseSealing compound
3131
IsolierummantelungInsulating jacket
4141
PolplattePole plate
51, 5251, 52
Joch-SchenkelYoke legs
5353
LagerkerbeBearing notch
6161
PolflächePole face
6262
LagerschneideBearing edge
7171
SeitenwandSide wall
7272
umlaufende Wandcircumferential wall
7373
WanneTub
7474
umlaufende Wandcircumferential wall
7575
WanneTub
7676
Boden, TrennwandFloor, partition
7777
BetätigungspimpelOperating pimples
8181
Trägercarrier
8282
SockelteilBase part
82a82a
AußenrandOuter edge
8383
BefestigungsblockMounting block
8484
DeckelteilCover part
8585
AufnahmeschlitzSlot
8686
Foliefoil
9191
KontaktfederContact spring
9292
BefestigungsteilFastener
9393
GegenkontaktfederCounter contact spring
9494
BefestigungsteilFastener
95, 9695, 96
AnschlußstachelConnecting pin
9797
freies Endefree end
9898
Schweißpunkt (Schweißung)Spot weld
9999
überstehende Kanteprotruding edge

Claims (9)

  1. Electromagnetic relay having
    a magnet system with coil (2, 3), core (4), yoke (5) and armature (6),
    a contact system (8) arranged adjacent to the coil (2, 3) with at least one movable contact element (91) and an actuation member (7) made of insulating material which is arranged in the region between the magnet system (2, 3, 4, 5, 6) and the contact system (8), can be moved by the armature (6) and extends as a movable partition (76) essentially over the entire surface between the metal parts (2, 4, 5, 6) of the magnet system on the one hand and of the contact system (8) on the other hand,
    characterized in that, with integral side walls (71, 72, 74) on the partition (76) directed toward the magnet system and/or toward the contact system, the actuation member (7) at least partially surrounds the magnet system and/or the contact system in the form of a tub.
  2. Relay according to claim 1, characterized in that the actuation member (7) is connected fast to the armature (6).
  3. Relay according to claim 1 or 2, characterized in that the armature (6) is partially surrounded by a wall section (71) of the actuation member (7) and has a free pole surface (61) directed toward the core (4).
  4. Relay according to one of claims 1 to 3, characterized in that the actuation member (7) is mounted pivotably on the yoke (5) by means of the armature (6).
  5. Relay according to one of claims 1 to 4, characterized in that the armature (6) forms an angled armature unit together with the actuation member (7), the plate-shaped armature lying approximately perpendicular to the coil axis, and the partition (76) formed by the actuation member (7) extending approximately perpendicular to the armature next to a yoke leg (52).
  6. Relay according to one of claims 1 to 5, characterized in that an actuation stud (77) that projects toward the contact system (8) is formed on the partition (76).
  7. Relay according to one of claims 1 to 6, characterized in that the partition (76) extends approximately parallel to the coil axis, and in that the contact system (8) has at least one contact spring (91) likewise extending approximately parallel to the coil axis.
  8. Relay according to one of claims 1 to 7, characterized in that the magnet system (3, 4, 5, 6) and the contact system (8) are inserted into a cap-shaped housing (1), which is open toward the connection side of the relay, in such a way that the magnet system lies above the contact system (8) in relation to the connection side of the relay and the actuation element (7) with its side walls (71, 72, 74) extends essentially parallel to the side walls of the housing in each case, almost up to the connection side.
  9. Relay according to one of claims 1 to 8, characterized in that the contact system has a support (81) which has at least one additional insulating wall (84; 86) directed toward the partition (76).
EP89912404A 1989-11-16 1989-11-16 Electromagnetic relay Expired - Lifetime EP0501951B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT89912404T ATE95946T1 (en) 1989-11-16 1989-11-16 ELECTROMAGNETIC RELAY.
DE89912404T DE58905926D1 (en) 1989-11-16 1989-11-16 ELECTROMAGNETIC RELAY.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE1989/000720 WO1991007769A1 (en) 1989-11-16 1989-11-16 Electromagnetic relay

Publications (2)

Publication Number Publication Date
EP0501951A1 EP0501951A1 (en) 1992-09-09
EP0501951B1 true EP0501951B1 (en) 1993-10-13

Family

ID=6835307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89912404A Expired - Lifetime EP0501951B1 (en) 1989-11-16 1989-11-16 Electromagnetic relay

Country Status (4)

Country Link
US (2) US5250919A (en)
EP (1) EP0501951B1 (en)
JP (1) JP3053824B2 (en)
WO (1) WO1991007769A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07506696A (en) * 1992-05-15 1995-07-20 シーメンス アクチエンゲゼルシヤフト polarized power relay
AT399417B (en) * 1993-07-02 1995-05-26 Schrack Components Ag RELAY
DE19627845C1 (en) 1996-07-10 1997-09-18 Siemens Ag Electromagnetic relay assembled at lowest cost and highest precision
DE19627844C1 (en) 1996-07-10 1997-08-28 Siemens Ag Plastics-moulded electromagnetic relay with mfg. method
EP0938119A1 (en) * 1998-02-18 1999-08-25 ELESTA relays GmbH Relay
US6252478B1 (en) * 1999-02-04 2001-06-26 Klaus A. Gruner Electromagnetic relay
US6246306B1 (en) * 1999-02-04 2001-06-12 Klaus A. Gruner Electromagnetic relay with pressure spring
DE10316509B3 (en) * 2003-04-09 2005-02-03 Song Chuan Europe Gmbh Electromagnetic relay
US8508321B2 (en) * 2010-08-17 2013-08-13 Song Chuan Precision Co., Ltd. Relay with multiple coils
CN106328444B (en) * 2015-06-30 2019-05-10 泰科电子(深圳)有限公司 The magnetic force systems of electromagnetic relay
DE102016201409A1 (en) * 2016-01-29 2017-08-03 Tyco Electronics Austria Gmbh Comb for a narrow relay, comb assembly and relays

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Publication number Priority date Publication date Assignee Title
US3626339A (en) * 1970-04-20 1971-12-07 Heinemann Electric Co Electromagnetic relay
CH600544A5 (en) * 1975-12-08 1978-06-15 Elesta Ag Elektronik
DE2614942A1 (en) * 1976-04-07 1977-10-20 Ernst Duerr ELECTROMAGNETIC SMALL SWITCHING RELAY
DE2733800A1 (en) * 1977-07-27 1979-02-15 Gruner Gmbh Und Co Relaisfabri Multiple contact relay with contacts laterally to magnetic coil - has all contacts distributed over coil length and at equal spacing from coil
DE2830390C2 (en) * 1978-07-11 1985-01-03 W. Gruner GmbH & Co Relaisfabrik, KG, 7209 Wehingen relay
US4688010A (en) * 1984-12-22 1987-08-18 Matsushita Electric Works, Ltd. Electromagnetic relay
JPS61281427A (en) * 1985-06-06 1986-12-11 オムロン株式会社 Electromagnetic relay
JPH0733344Y2 (en) * 1988-12-23 1995-07-31 松下電工株式会社 Electromagnetic relay
CH677162A5 (en) * 1989-10-30 1991-04-15 Carlo Cavazzi Electromatic Ag

Also Published As

Publication number Publication date
JPH05504863A (en) 1993-07-22
US5250919A (en) 1993-10-05
US5243312A (en) 1993-09-07
JP3053824B2 (en) 2000-06-19
EP0501951A1 (en) 1992-09-09
WO1991007769A1 (en) 1991-05-30

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