EP0727801A2 - Electromagnetic relay with manual operation - Google Patents

Electromagnetic relay with manual operation Download PDF

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Publication number
EP0727801A2
EP0727801A2 EP96102019A EP96102019A EP0727801A2 EP 0727801 A2 EP0727801 A2 EP 0727801A2 EP 96102019 A EP96102019 A EP 96102019A EP 96102019 A EP96102019 A EP 96102019A EP 0727801 A2 EP0727801 A2 EP 0727801A2
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EP
European Patent Office
Prior art keywords
armature
switching
window
cap
pivot axis
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
EP96102019A
Other languages
German (de)
French (fr)
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EP0727801A3 (en
EP0727801B1 (en
Inventor
Franz Kammerl
Ulrich Reblin
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TE Connectivity Solutions GmbH
Original Assignee
Siemens AG
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Filing date
Publication date
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Publication of EP0727801A2 publication Critical patent/EP0727801A2/en
Publication of EP0727801A3 publication Critical patent/EP0727801A3/en
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Publication of EP0727801B1 publication Critical patent/EP0727801B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/08—Indicators; Distinguishing marks
    • 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
    • H01H50/32—Latching movable parts mechanically
    • H01H50/326—Latching movable parts mechanically with manual intervention, e.g. for testing, resetting or mode selection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2272—Polarised relays comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature

Definitions

  • the invention relates to an electromagnetic relay with a housing comprising a cap, a magnet system arranged in the housing with a coil and an armature arranged along the outside of the coil and pivotably mounted about a pivot axis in the region of the coil center and with an armature connected to the armature through an actuation window the cap of the actuator accessible from the outside.
  • Such a relay is known for example from DE-A1-36 24 783.
  • a polarized relay system with a so-called H-armature is shown, in which an actuating lever is arranged in the extension of the one arm leg and emerges with a lateral offset through an opening in the housing.
  • the relay there, however, has a very large overall height, since the coil axis and the armature are perpendicular to the bottom side or installation level of the relay, so that the actuating lever on the top of the housing is accessible. If the system were rotated through 90 ° to achieve a flat design, however, the actuating lever would emerge from a side wall, which would make access on a printed circuit board more difficult.
  • the actuating lever formed in a one-sided extension of the armature causes an asymmetrical and, depending on the switching direction, unequal force.
  • there is a force component in one switching direction which tends to pull the armature away from the coil and the pole shoes.
  • this has no special effects; in the case of a rocker armature resting only on one side on pole plates and possibly a permanent magnet and held only in the bearing by magnetic force or by a spring, this could lead to undesired lifting of the armature or possibly to an undesired deformation of a bearing spring.
  • the aim of the present invention is to design a relay of the type mentioned at the outset with an actuating member in such a way that unfavorable forces acting on the armature bearing, which could lead to the armature lifting off, are avoided.
  • the actuating member has at least one switching cam which projects approximately perpendicularly outwards from the surface of the armature in the vicinity of the pivot axis of the armature.
  • the actuating member has a single switching cam in the form of a rocker arm, which extends outward in the radial direction to the pivot axis of the armature.
  • the armature is actuated by a rocker arm exactly above its center and above its swivel axis.
  • the actuating member can also be designed as a rocker, the actuation being carried out by pressure on the respective wing of the rocker and thus on the respective anchor wing.
  • This rocker like the rocker arm, can be made as a one-piece actuator, for example from plastic, and on the anchor by means of plug pins or the like.
  • the armature itself can also form the rocker, in which case two separate switching cams are placed on the armature on both sides at a distance from the axis of rotation. If one omits one of these switching cams, there is a one-sided actuating element in the event that it is a monostable magnet system in which the armature is always automatically reset to the same rest position by a magnet or by spring force.
  • the actuating member carries markings next to the respective switching cams in the direction of the switching movement, different markings being visible through a viewing window of the cap depending on the switching position.
  • This viewing window can each be an area of the actuating window or can be left out in the cap as an additional window separate from the actuating window.
  • the relay shown in FIG. 1 has a magnet system known per se with a coil 2, which is concealed in a base body 1 and has an axis parallel to the bottom, with a core arranged inside the coil, the ends of which are connected to two yokes 3 and 4.
  • a plate-shaped permanent magnet 5 is arranged parallel to the coil axis between the ends of the two yokes 3 and 4.
  • the permanent magnet is magnetized with three poles, the two outer poles being coupled to the yokes 3 and 4, while a rocker armature 6, the two wings of which form an obtuse angle with respect to one another, is mounted on the center pole in a rollable manner.
  • An armature spring 7 serves as the holder for the armature.
  • the armature 6 forms an air gap with the two yokes 3 and 4, so that it is not in the middle position shown in the rest state, but is held on one of the yokes 3 or 4.
  • the armature of this bistable system is switched by a corresponding current pulse in the coil. But it is also possible to achieve a monostable switching behavior by additional spring force or by asymmetrical adjustment of the permanent magnet 5.
  • a contact system 9 is switched through the armature end 6a via a slide 8 in a likewise known manner; this should not be explained in detail here. Otherwise, the relay system is housed in a housing formed by a base plate 10 and a cap 11.
  • the armature 6 is provided with an actuating member 12 which sits centrally on the armature above its bearing area and has a switching cam in the form of a rocker arm 13 projecting radially outward from the bearing axis.
  • the actuator 12 is firmly connected to the armature, for example by fastening pins 14 which are inserted into recesses 15 of the armature. But it would also be conceivable to connect the actuator to the armature by injection molding or in a similar manner. It would also be conceivable to form an actuator in one piece with the armature by appropriate shaping.
  • the rocker arm 13 projects through an actuation window 16 of the housing cap 11.
  • This actuation window is dimensioned in such a way that the rocker arm 13 can be moved in both directions in the longitudinal direction of the armature until the armature reaches its respective end position Has.
  • the respective switching state of the relay can also be recognized from the position of the rocker arm in the actuation window 16.
  • the actuating member extends with a shoulder 12a into a bulge 11a of the cap 11. This also increases the switching path of the rocker arm 13 and the switch positions differ more clearly from each other. If this is not necessary or if the permissible overall height of the relay does not allow this, it is also possible to work with a shorter lever arm for the rocker arm 13.
  • FIG. 2 shows a somewhat modified embodiment, which in particular dispenses with any increase in the overall height.
  • the relay system shown in perspective in FIG. 2 is basically constructed in exactly the same way as in FIG. 1. Only the actuating element is modified. This now consists of two separate switching cams 17 and 18, which are separately attached to the armature, for example by plugging them on. Each of the switching cams 17 and 18 protrudes into its own actuation window 19 or 20, without protruding beyond the surface of the cap 11. However, the two switching cams 17 and 18 could also be parts of a common actuating member which is attached to the armature as in FIG. 1.
  • the lever arm is formed in this case by removing the two switching cams 17 and 18 from the armature axis of rotation; the anchor itself forms the rocker switch.
  • the actuation does not take place by moving a lever in the longitudinal direction of the armature, but rather by pressing on one of the switching cams 17 or 18 from the outside in the direction approximately perpendicular to the armature surface.
  • the area 21 between the two actuation windows 19 and 20 is set back inwards. In this case, the switching state of the relay can be recognized by the respective height position of the two switching cams 17 and 18.
  • Figure 3 shows the same structure as Figure 2, with only the one switching cam 17 and the corresponding actuation window 19 are omitted, so that only a single, at a distance from the axis of rotation of the armature 6 switching cam 18 is present.
  • the magnet system is monostable so that the armature is attracted to the yoke 3 in the idle state due to magnetic or spring forces. In this case, manual operation can only be carried out by the switching cam 18 in the direction of the yoke 4.
  • FIGS. 4 and 5 show the visualization of a marking in the case of a relay structure according to FIG. 1, the cap 11 being shown closed and only being cut open in the area of the actuating member.
  • Marking fields with dark areas 22 and light areas 23 are provided on the extension 12a of the actuating member 12 on both sides of the rocker arm 13. In the drawing, these marking fields are drawn enlarged for emphasis. In reality, there are only colored surface layers on the actuating member 12, which would hardly be visible in the side view. In practice, for example, the dark area 22 could be red and the light area 23 white or black. The only thing that matters is that a contrast in color or brightness is visible on the top of the relay between the two areas. Viewing windows 24 and 25 are provided in the housing cap 11 above the marking fields. These viewing windows 24 and 25 are kept so narrow as slots that only the marking areas 22 or the differently colored marking areas 23 are visible, depending on the switching position.
  • the operating window 16 could also be used for position detection.
  • the window area 16a would open one side of the rocker arm 13 or the window area 16b on the other side of the rocker arm 13 receive the function of a viewing window if the actuating member 12 below the actuating window 16 would receive colored markings, to be precise on both sides of the rocker arm 13 in different colors.
  • the funnel-shaped expansion of the viewing windows 24 and 25 to the outside shown in FIGS. 4 and 5 improves the incidence of light and the visibility of the color markings through the viewing windows, which otherwise have to be kept very narrow because of the short distance between the two switch positions.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Braking Arrangements (AREA)
  • Breakers (AREA)

Abstract

The relay has a polarised magnetic system with a coil (2) and a 3-pole permanent magnet (5), the outer poles each coupled to a yoke (3,4) and the centre pole supporting a wiper armature (6). An operating element (12,13) acts on the armature adjacent the pivot axis. It has a trip lever (13) which projects through an opening (16) in the cover of the relay housing. The trip lever allows manual adjustment of the armature position. Pref. the trip lever extends radially relative to the pivot axis of the armature.

Description

Die Erfindung betrifft ein elektromagnetisches Relais mit einem eine Kappe umfassenden Gehäuse, einem in dem Gehäuse angeordneten Magnetsystem mit einer Spule und einem entlang der Spulenaußenseite angeordneten, um eine Schwenkachse im Bereich der Spulenmitte schwenkbar gelagerten Anker und mit einem mit dem Anker verbundenen, durch ein Betätigungsfenster der Kappe von außen zugänglichem Betätigungsorgan.The invention relates to an electromagnetic relay with a housing comprising a cap, a magnet system arranged in the housing with a coil and an armature arranged along the outside of the coil and pivotably mounted about a pivot axis in the region of the coil center and with an armature connected to the armature through an actuation window the cap of the actuator accessible from the outside.

Ein derartiges Relais ist beispielsweise aus der DE-A1-36 24 783 bekannt. Dort ist ein polarisiertes Relaissystem mit einem sogenannten H-Anker gezeigt, bei dem ein Betätigungshebel in Verlängerung des einen Ankerschenkels angeordnet ist und mit einem seitlichen Versatz durch eine Öffnung des Gehäuses nach außen tritt. Das dortige Relais besitzt allerdings eine sehr große Bauhöhe, da die Spulenachse und der Anker senkrecht zur Bodenseite bzw. Einbauebene des Relais stehen, so daß der Betätigungshebel an der Gehäuseoberseite zugänglich ist. Bei einer Drehung des Systems um 90° zur Erzielung einer flachen Bauform würde jedoch der Betätigungshebel aus einer Seitenwand austreten, was die Zugänglichkeit auf einer Leiterplatte erschweren würde. Zudem bewirkt der in einer einseitigen Verlängerung des Ankers ausgebildete Betätigungshebel eine unsymmetrische und je nach Schaltrichtung ungleiche Krafteinwirkung. Insbesondere ergibt sich in der einen Schaltrichtung eine Kraftkomponente, die den Anker von der Spule und den Polschuhen weg nach außen zu ziehen bestrebt ist. Bei dem dort gezeigten zapfengelagerten H-Anker hat dies keine besonderen Auswirkungen; bei einem nur einseitig auf Polblechen und eventuell einem Dauermagneten aufliegenden und lediglich durch Magnetkraft oder durch eine Feder in der Lagerung gehaltenen Wippanker könnte dies jedoch zu einem unerwünschten Abheben des Ankers oder gegebenenfalls zu einer unerwünschten Deformation einer Lagerfeder führen.Such a relay is known for example from DE-A1-36 24 783. There, a polarized relay system with a so-called H-armature is shown, in which an actuating lever is arranged in the extension of the one arm leg and emerges with a lateral offset through an opening in the housing. The relay there, however, has a very large overall height, since the coil axis and the armature are perpendicular to the bottom side or installation level of the relay, so that the actuating lever on the top of the housing is accessible. If the system were rotated through 90 ° to achieve a flat design, however, the actuating lever would emerge from a side wall, which would make access on a printed circuit board more difficult. In addition, the actuating lever formed in a one-sided extension of the armature causes an asymmetrical and, depending on the switching direction, unequal force. In particular, there is a force component in one switching direction which tends to pull the armature away from the coil and the pole shoes. In the case of the H-bolt with a journal bearing there this has no special effects; in the case of a rocker armature resting only on one side on pole plates and possibly a permanent magnet and held only in the bearing by magnetic force or by a spring, this could lead to undesired lifting of the armature or possibly to an undesired deformation of a bearing spring.

Ziel der vorliegenden Erfindung ist es, ein Relais der eingangs genannten Art mit einem Betätigungsorgan derart zu gestalten, daß ungünstige Krafteinwirkungen auf das Ankerlager, die zu einem Abheben des Ankers führen könnten, vermieden werden. Insbesondere soll es dabei möglich sein, bei einer flachen Bauform des Relais mit liegendem Magnetsystem die Handbetätigung von der Gehäuseoberseite her durchzuführen.The aim of the present invention is to design a relay of the type mentioned at the outset with an actuating member in such a way that unfavorable forces acting on the armature bearing, which could lead to the armature lifting off, are avoided. In particular, it should be possible to carry out manual operation from the top of the housing in the case of a flat design of the relay with a lying magnet system.

Erfindungsgemäß wird dieses Ziel dadurch erreicht, daß das Betätigungsorgan mindestens einen in der Nähe der Schwenkachse des Ankers von dessen Oberfläche annähernd senkrecht nach außen ragenden Schaltnocken besitzt.According to the invention, this aim is achieved in that the actuating member has at least one switching cam which projects approximately perpendicularly outwards from the surface of the armature in the vicinity of the pivot axis of the armature.

In einer vorteilhaften Ausführungsform besitzt das Betätigungsorgan einen einzigen Schaltnocken in Form eines Kipphebels, der sich in Radialrichtung zur Schwenkachse des Ankers nach außen erstreckt. Dabei wird also der Anker genau über seiner Mitte und über seiner Schwenkachse durch einen Kipphebel betätigt. Grundsätzlich kann aber das Betätigungsorgan auch als Wippe ausgebildet sein, wobei die Betätigung durch Druck auf den jeweiligen Flügel der Wippe und damit auf den jeweiligen Ankerflügel erfolgt. Diese Wippe kann ebenso wie der Kipphebel als einstückiges Betätigungsorgan beispielsweise aus Kunststoff gefertigt und auf dem Anker durch Steckzapfen oder dergleichen befestigt sein. Es kann aber auch der Anker selbst die Wippe bilden, wobei dann zwei getrennte Schaltnocken beiderseits im Abstand von der Drehachse auf den Anker aufgesetzt sind. Läßt man einen dieser Schaltnocken weg, so ergibt sich ein einseitiges Betätigungsorgan für den Fall, daß es sich um ein monostabiles Magnetsystem handelt, bei dem der Anker durch einen Magneten oder durch Federkraft automatisch immer in die gleiche Ruhestellung zurückgesetzt wird.In an advantageous embodiment, the actuating member has a single switching cam in the form of a rocker arm, which extends outward in the radial direction to the pivot axis of the armature. The armature is actuated by a rocker arm exactly above its center and above its swivel axis. In principle, however, the actuating member can also be designed as a rocker, the actuation being carried out by pressure on the respective wing of the rocker and thus on the respective anchor wing. This rocker, like the rocker arm, can be made as a one-piece actuator, for example from plastic, and on the anchor by means of plug pins or the like. However, the armature itself can also form the rocker, in which case two separate switching cams are placed on the armature on both sides at a distance from the axis of rotation. If one omits one of these switching cams, there is a one-sided actuating element in the event that it is a monostable magnet system in which the armature is always automatically reset to the same rest position by a magnet or by spring force.

Um den Schaltzustand auch nach außen kenntlich zu machen, ist in einer vorteilhaften Ausgestaltung vorgesehen, daß das Betätigungsorgan jeweils in Richtung der Schaltbewegung neben dem jeweiligen Schaltnocken Markierungen trägt, wobei je nach Schaltstellung unterschiedliche Markierungen durch ein Sichtfenster der Kappe sichtbar sind. Dabei kann dieses Sichtfenster jeweils ein Bereich des Betätigungsfensters sein oder als vom Betätigungsfenster getrenntes zusätzliches Fenster in der Kappe ausgespart sein.In order to make the switching state also recognizable from the outside, it is provided in an advantageous embodiment that the actuating member carries markings next to the respective switching cams in the direction of the switching movement, different markings being visible through a viewing window of the cap depending on the switching position. This viewing window can each be an area of the actuating window or can be left out in the cap as an additional window separate from the actuating window.

Die Erfindung wird nachfolgend an Ausführungsbeispielen anhand der Zeichnung näher erläutert. Es zeigt

  • Figur 1 ein erfindungsgemäß gestaltetes Relais in Seitenansicht mit aufgeschnittener Kappe mit einem Kipphebel als Schaltnocken,
  • Figur 2 das Relais von Figur 1 in perspektivischer Darstellung, jedoch mit etwas abgewandeltem Betätigungsorgan in Form einer Wippe mit zwei Schaltnocken,
  • Figur 3 eine Ausführungsform wie in Figur 2, jedoch als monostabiles System mit nur einem Schaltnocken,
  • Figur 4 und 5 zwei Seitenansichten des Relais von Figur 1 mit Markierungen zur Kennzeichnung der Schaltstellung.
The invention is explained in more detail below using exemplary embodiments with reference to the drawing. It shows
  • FIG. 1 is a side view of a relay designed according to the invention with a cut cap with a rocker arm as a switching cam,
  • FIG. 2 shows the relay from FIG. 1 in perspective, but with a somewhat modified actuating element in the form of a rocker with two switching cams,
  • FIG. 3 shows an embodiment as in FIG. 2, but as a monostable system with only one switching cam,
  • Figures 4 and 5 two side views of the relay of Figure 1 with markings to indicate the switching position.

Das in Figur 1 gezeigte Relais besitzt ein an sich bekanntes Magnetsystem mit einer in einem Grundkörper 1 verdeckt angeordneten Spule 2 mit einer zur Bodenseite parallelen Achse, mit einem innerhalb der Spule angeordneten Kern, dessen Enden mit zwei Jochen 3 und 4 verbunden sind. Zwischen den Enden der beiden Joche 3 und 4 ist ein plattenförmiger Dauermagnet 5 parallel zur Spulenachse angeordnet. Der Dauermagnet ist dreipolig aufmagnetisiert, wobei die beiden äußeren Pole mit den Jochen 3 und 4 gekoppelt sind, während auf dem Mittelpol ein Wippanker 6, dessen zwei Flügel zueinander einen stumpfen Winkel bilden, abrollbar gelagert ist. Als Halterung für den Anker dient eine Ankerfeder 7. Der Anker 6 bildet mit den beiden Jochen 3 und 4 jeweils einen Luftspalt, so daß er jeweils im Ruhezustand nicht in der dargestellten Mittelposition steht, sondern wahlweise an einem der Joche 3 oder 4 festgehalten wird. Durch einen entsprechenden Stromimpuls in der Spule wird der Anker dieses bistabilen Systems umgeschaltet. Es ist aber auch möglich, durch zusätzliche Federkraft oder durch unsymmetrischen Abgleich des Dauermagneten 5 ein monostabiles Schaltverhalten zu erzielen. Durch das Ankerende 6a wird über einen Schieber 8 in ebenfalls bekannter Weise ein Kontaktsystem 9 geschaltet; dies soll hier nicht im einzelnen ausgeführt werden. Im übrigen ist das Relaissystem in einem durch eine Grundplatte 10 und eine Kappe 11 gebildeten Gehäuse untergebracht.The relay shown in FIG. 1 has a magnet system known per se with a coil 2, which is concealed in a base body 1 and has an axis parallel to the bottom, with a core arranged inside the coil, the ends of which are connected to two yokes 3 and 4. A plate-shaped permanent magnet 5 is arranged parallel to the coil axis between the ends of the two yokes 3 and 4. The permanent magnet is magnetized with three poles, the two outer poles being coupled to the yokes 3 and 4, while a rocker armature 6, the two wings of which form an obtuse angle with respect to one another, is mounted on the center pole in a rollable manner. An armature spring 7 serves as the holder for the armature. The armature 6 forms an air gap with the two yokes 3 and 4, so that it is not in the middle position shown in the rest state, but is held on one of the yokes 3 or 4. The armature of this bistable system is switched by a corresponding current pulse in the coil. But it is also possible to achieve a monostable switching behavior by additional spring force or by asymmetrical adjustment of the permanent magnet 5. A contact system 9 is switched through the armature end 6a via a slide 8 in a likewise known manner; this should not be explained in detail here. Otherwise, the relay system is housed in a housing formed by a base plate 10 and a cap 11.

Zur zusätzlichen manuellen Betätigung des Relais ist der Anker 6 mit einem Betätigungsorgan 12 versehen, das mittig auf dem Anker über dessen Lagerbereich sitzt und einen radial zur Lagerachse nach außen ragenden Schaltnocken in Form eines Kipphebels 13 aufweist. Das Betätigungsorgan 12 ist mit dem Anker fest verbunden, beispielsweise durch Befestigungszapfen 14, die in Ausnehmungen 15 des Ankers eingesteckt sind. Es wäre aber auch denkbar, das Betätigungsorgan durch Spritzgießen oder auf eine ähnliche Weise mit dem Anker zu verbinden. Denkbar wäre auch, ein Betätigungsorgan einstückig mit dem Anker durch entsprechende Formgebung auszubilden.For additional manual actuation of the relay, the armature 6 is provided with an actuating member 12 which sits centrally on the armature above its bearing area and has a switching cam in the form of a rocker arm 13 projecting radially outward from the bearing axis. The actuator 12 is firmly connected to the armature, for example by fastening pins 14 which are inserted into recesses 15 of the armature. But it would also be conceivable to connect the actuator to the armature by injection molding or in a similar manner. It would also be conceivable to form an actuator in one piece with the armature by appropriate shaping.

Um eine Betätigung von außen zu ermöglichen, ragt der Kipphebel 13 durch ein Betätigungsfenster 16 der Gehäusekappe 11. Dieses Betätigungsfenster ist in seiner Ausdehnung so bemessen, daß der Kipphebel 13 in beiden Richtungen in Ankerlängsrichtung soweit bewegt werden kann, bis der Anker seine jeweilige Endstellung erreicht hat. An der Stellung des Kipphebels in dem Betätigungsfenster 16 ist auch der jeweilige Schaltzustand des Relais erkennbar. Um einen verhältnismäßig langen Hebelarm für den Kipphebel 13 zu erreichen, erstreckt sich in dem Beispiel gemäß Figur 1 das Betätigungsorgan mit einem Ansatz 12a in eine Ausbuchtung 11a der Kappe 11. Dadurch wird auch der Schaltweg des Kipphebels 13 länger, und die Schaltstellungen unterscheiden sich deutlicher voneinander. Wenn dies nicht erforderlich ist bzw. wenn die zulässige Bauhöhe des Relais dies nicht zuläßt, kann auch mit einem kürzeren Hebelarm für den Kipphebel 13 gearbeitet werden.To enable actuation from the outside, the rocker arm 13 projects through an actuation window 16 of the housing cap 11. This actuation window is dimensioned in such a way that the rocker arm 13 can be moved in both directions in the longitudinal direction of the armature until the armature reaches its respective end position Has. The respective switching state of the relay can also be recognized from the position of the rocker arm in the actuation window 16. In order to achieve a relatively long lever arm for the rocker arm 13, in the example according to FIG. 1 the actuating member extends with a shoulder 12a into a bulge 11a of the cap 11. This also increases the switching path of the rocker arm 13 and the switch positions differ more clearly from each other. If this is not necessary or if the permissible overall height of the relay does not allow this, it is also possible to work with a shorter lever arm for the rocker arm 13.

Figur 2 zeigt eine etwas abgewandelte Ausführungsform, welche insbesondere auf jegliche Vergrößerung der Bauhöhe verzichtet. Das in Figur 2 perspektivisch gezeigte Relaissystem ist grundsätzlich genauso aufgebaut wie in Figur 1. Lediglich das Betätigungsorgan ist abgewandelt. Dieses besteht nunmehr aus zwei getrennten Schaltnocken 17 und 18, welche getrennt auf dem Anker, beispielsweise durch Aufstecken, befestigt sind. Jeder der Schaltnocken 17 und 18 ragt in ein eigenes Betätigungsfenster 19 bzw. 20, ohne über die Oberfläche der Kappe 11 überzustehen. Die beiden Schaltnocken 17 und 18 könnten aber auch Teile eines gemeinsamen Betätigungsorgans sein, das wie in Figur 1 auf dem Anker befestigt ist.FIG. 2 shows a somewhat modified embodiment, which in particular dispenses with any increase in the overall height. The relay system shown in perspective in FIG. 2 is basically constructed in exactly the same way as in FIG. 1. Only the actuating element is modified. This now consists of two separate switching cams 17 and 18, which are separately attached to the armature, for example by plugging them on. Each of the switching cams 17 and 18 protrudes into its own actuation window 19 or 20, without protruding beyond the surface of the cap 11. However, the two switching cams 17 and 18 could also be parts of a common actuating member which is attached to the armature as in FIG. 1.

Der Hebelarm wird in diesem Fall durch die Entfernung der beiden Schaltnocken 17 und 18 von der Ankerdrehachse gebildet; der Anker bildet also selbst die Schaltwippe. Die Betätigung erfolgt in diesem Fall nicht durch eine Verschiebung eines Hebels in Ankerlängsrichtung, sondern durch einen Druck auf einen der Schaltnocken 17 bzw. 18 von außen in Richtung etwa senkrecht zur Ankeroberfläche. Um die Schaltnocken 17 und 18 besser erreichen zu können, ist der Bereich 21 zwischen den beiden Betätigungsfenstern 19 und 20 nach innen zurückgesetzt. Der Schaltzustand des Relais ist in diesem Fall an der jeweililgen Höhenposition der beiden Schaltnocken 17 und 18 zu erkennen.The lever arm is formed in this case by removing the two switching cams 17 and 18 from the armature axis of rotation; the anchor itself forms the rocker switch. In this case, the actuation does not take place by moving a lever in the longitudinal direction of the armature, but rather by pressing on one of the switching cams 17 or 18 from the outside in the direction approximately perpendicular to the armature surface. In order to be able to better reach the switching cams 17 and 18, the area 21 between the two actuation windows 19 and 20 is set back inwards. In this case, the switching state of the relay can be recognized by the respective height position of the two switching cams 17 and 18.

Figur 3 zeigt den gleichen Aufbau wie Figur 2, wobei lediglich der eine Schaltnocken 17 und das entsprechende Betätigungsfenster 19 weggelassen sind, so daß nur ein einziger, im Abstand von der Drehachse des Ankers 6 angreifender Schaltnocken 18 vorhanden ist. Für diese Ausführungsform ist jedoch vorauszusetzen, daß das Magnetsystem monostabil ist, so daß aufgrund von Magnet- oder Federkräften der Anker im Ruhezustand an das Joch 3 angezogen wird. Eine Handbetätigung kann in diesem Fall also nur durch den Schaltnocken 18 in Richtung auf das Joch 4 vorgenommen werden.Figure 3 shows the same structure as Figure 2, with only the one switching cam 17 and the corresponding actuation window 19 are omitted, so that only a single, at a distance from the axis of rotation of the armature 6 switching cam 18 is present. However, for this embodiment assuming that the magnet system is monostable so that the armature is attracted to the yoke 3 in the idle state due to magnetic or spring forces. In this case, manual operation can only be carried out by the switching cam 18 in the direction of the yoke 4.

In den Figuren 4 und 5 ist bei einem Relaisaufbau gemäß Figur 1, wobei die Kappe 11 geschlossen und nur im Bereich des Betätigungsorgans aufgeschnitten gezeigt ist, die Sichtbarmachung einer Markierung dargestellt. Auf dem Ansatz 12a des Betätigungsorgans 12 sind beiderseits des Kipphebels 13 jeweils Markierungsfelder mit dunklen Bereichen 22 und hellen Bereichen 23 vorgesehen. In der Zeichnung sind diese Markierungsfelder zur Hervorhebung vergrößert gezeichnet. In Wirklichkeit handelt es sich nur um farbige Oberflächenschichten auf dem Betätigungsorgan 12, die in der Seitenansicht kaum sichtbar wären. In der Praxis könnte beispielsweise der dunkle Bereich 22 jeweils rot und der helle Bereich 23 jeweils weiß oder auch schwarz gehalten sein. Es kommt lediglich darauf an, daß zwischen den beiden Bereichen ein Kontrast in der Farbe bzw. in der Helligkeit an der Relaisoberseite sichtbar wird. Über den Markierungsfeldern sind in der Gehäusekappe 11 jeweils Sichtfenster 24 und 25 vorgesehen. Diese Sichtfenster 24 und 25 sind als Schlitze so schmal gehalten, daß je nach Schaltstellung jeweils nur die Markierungsbereiche 22 oder die andersfarbigen Markierungsbereiche 23 sichtbar sind.FIGS. 4 and 5 show the visualization of a marking in the case of a relay structure according to FIG. 1, the cap 11 being shown closed and only being cut open in the area of the actuating member. Marking fields with dark areas 22 and light areas 23 are provided on the extension 12a of the actuating member 12 on both sides of the rocker arm 13. In the drawing, these marking fields are drawn enlarged for emphasis. In reality, there are only colored surface layers on the actuating member 12, which would hardly be visible in the side view. In practice, for example, the dark area 22 could be red and the light area 23 white or black. The only thing that matters is that a contrast in color or brightness is visible on the top of the relay between the two areas. Viewing windows 24 and 25 are provided in the housing cap 11 above the marking fields. These viewing windows 24 and 25 are kept so narrow as slots that only the marking areas 22 or the differently colored marking areas 23 are visible, depending on the switching position.

Anstelle der zusätzlichen Sichtfenster 24 und 25 könnte auch das Betätigungsfenster 16 zur Lageerkennung genutzt werden. So würde je nach Schaltstellung der Fensterbereich 16a auf der einen Seite des Kipphebels 13 oder der Fensterbereich 16b auf der anderen Seite des Kipphebels 13 die Funktion eines Sichtfensters erhalten, wenn unterhalb des Betätigungsfensters 16 das Betätigungsorgan 12 farbige Markierungen, und zwar zu beiden Seiten des Kipphebels 13 in unterschiedlicher Farbe, erhalten würde.Instead of the additional viewing windows 24 and 25, the operating window 16 could also be used for position detection. Depending on the switching position, the window area 16a would open one side of the rocker arm 13 or the window area 16b on the other side of the rocker arm 13 receive the function of a viewing window if the actuating member 12 below the actuating window 16 would receive colored markings, to be precise on both sides of the rocker arm 13 in different colors.

Durch die in den Figuren 4 und 5 gezeigte trichterförmige Erweiterung der Sichtfenster 24 und 25 nach außen werden der Lichteinfall und die Einsehbarkeit der Farbmarkierungen durch die Sichtfenster verbessert, die ansonsten wegen der geringen Distanz zwischen den beiden Schaltstellungen sehr schmal gehalten werden müssen.The funnel-shaped expansion of the viewing windows 24 and 25 to the outside shown in FIGS. 4 and 5 improves the incidence of light and the visibility of the color markings through the viewing windows, which otherwise have to be kept very narrow because of the short distance between the two switch positions.

Claims (10)

Elektromagnetisches Relais mit einem eine Kappe (11) umfassenden Gehäuse, einem in dem Gehäuse angeordneten Magnetsystem mit einer Spule (2) und einem entlang der Spulenaußenseite angeordneten, um eine Schwenkachse im Bereich der Spulenmitte schwenkbar gelagerten Anker (6) und mit einem mit dem Anker (6) verbundenen, durch ein Betätigungsfenster (16; 19, 20) der Kappe (11) von außen zugänglichem Betätigungsorgan (12, 13; 17, 18), dadurch gekennzeichnet, daß das Betätigungsorgan (12) mindestens einen in der Nähe der Schwenkachse des Ankers (6) von dessen Oberfläche annähernd senkrecht nach außen ragenden Schaltnocken (13; 17, 18) besitzt.Electromagnetic relay with a housing comprising a cap (11), a magnet system arranged in the housing with a coil (2) and an armature (6) which is arranged along the outside of the coil and can be pivoted about a pivot axis in the region of the center of the coil and with an armature (6) connected, through an actuating window (16; 19, 20) of the cap (11) externally accessible actuating member (12, 13; 17, 18), characterized in that the actuating member (12) at least one near the pivot axis of the armature (6) from its surface has approximately vertically outwardly projecting switching cams (13; 17, 18). Relais nach Anspruch 1, dadurch gekennzeichnet, daß das Betätigungsorgan (12) einen einzigen Schaltnocken in Form eines Kipphebels (13) besitzt, der sich in Radialrichtung zur Schwenkachse des Ankers (6) nach außen erstreckt.Relay according to Claim 1, characterized in that the actuating member (12) has a single switching cam in the form of a rocker arm (13) which extends outwards in the radial direction to the pivot axis of the armature (6). Relais nach Anspruch 1, dadurch gekennzeichnet, daß das Betätigungsorgan in Form einer Wippe in dem Fenster (19, 20) der Kappe (11) zugänglich ist.Relay according to Claim 1, characterized in that the actuating member is accessible in the form of a rocker in the window (19, 20) of the cap (11). Relais nach Anspruch 3, dadurch gekennzeichnet, daß die Wippe durch den Anker (6) selbst gebildet ist und daß mindestens ein im Abstand zu der Schwenkachse des Ankers (6) an diesem befestigter, durch Druck betätigbarer Schaltnocken (17, 18) durch ein Betätigungsfenster (19, 20) der Kappe (11) zugänglich ist.Relay according to Claim 3, characterized in that the rocker is formed by the armature (6) itself and that at least one pressure-actuated switching cam (17, 18) which is fastened to the armature (6) at a distance from the pivot axis thereof is actuated by an actuation window (19, 20) of the cap (11) is accessible. Relais nach Anspruch 4, dadurch gekennzeichnet, daß zu beiden Seiten der Schwenkachse des Ankers (6) jeweils ein Schaltnocken (17, 18) vorgesehen ist, von denen wahlweise einer in einem zugeordneten Fenster (19, 20) betätigbar ist.Relay according to Claim 4, characterized in that a switching cam (17, 18) is provided on both sides of the pivot axis of the armature (6), one of which can optionally be actuated in an associated window (19, 20). Relais nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Betätigungsorgan (12) jeweils in Richtung der Schaltbewegung neben dem jeweiligen Schaltnocken (13) Markierungen (22, 23) trägt, wobei je nach Schaltstellung unterschiedliche Markierungen durch ein oder mehrere Sichtfenster (24, 25) der Kappe (11) sichtbar sind.Relay according to one of Claims 1 to 5, characterized in that the actuating member (12) bears markings (22, 23) next to the respective switching cam (13) in the direction of the switching movement, different markings through one or more viewing windows (depending on the switching position) 24, 25) of the cap (11) are visible. Relais nach Anspruch 6, dadurch gekennzeichnet, daß je nach Schaltstellung jeweils ein an einer Seite des Schaltnockens (13) freibleibender Abschnitt des Betätigungsfensters (16) als Sichtfenster (16a, 16b) dient.Relay according to Claim 6, characterized in that, depending on the switching position, a section of the actuating window (16) which remains free on one side of the switching cam (13) serves as a viewing window (16a, 16b). Relais nach Anspruch 7, dadurch gekennzeichnet, daß in Richtung der Schaltbewegung jeweils zu beiden Seiten des Schaltnockens (13) vom Betätigungsfenster (16) getrennte, zusätzliche Sichtfenster (24, 25) in der Kappe (11) vorgesehen sind.Relay according to Claim 7, characterized in that additional viewing windows (24, 25) separate from the actuating window (16) are provided in the cap (11) in the direction of the switching movement on both sides of the switching cam (13). Relais nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß die Sichtfenster (16a, 16b; 24, 25) jeweils nach außen trichterförmig erweitert sind.Relay according to one of Claims 6 to 8, characterized in that the viewing windows (16a, 16b; 24, 25) are each funnel-shaped outwards. Relais nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Spule (2) mit ihrer Achse parallel zur Einbauebene des Relais liegt, daß oberhalb der Spule ein plattenförmiger, dreipoliger Dauermagnet angeordnet ist, auf dessen Mittelpol ein V-förmig gebogener Anker (6) gelagert ist und daß das Betätigungsorgan (12) über der Schwenkachse des Ankers so angeordnet ist, daß ein senkrecht zur Schwenkachse nach oben stehender Kipphebel (13) etwa in der Mitte der Gehäusekappe nach außen ragt.Relay according to one of Claims 1 to 9, characterized in that the coil (2) lies with its axis parallel to the installation plane of the relay, that a plate-shaped, three-pole permanent magnet is arranged above the coil, on the center pole of which a V-shaped armature (6) is mounted and that the actuating member (12) is arranged above the pivot axis of the armature such that a rocker arm (13) which is perpendicular to the pivot axis and extends upwards approximately in the middle of the housing cap protrudes.
EP96102019A 1995-02-20 1996-02-12 Electromagnetic relay with manual operation Expired - Lifetime EP0727801B1 (en)

Applications Claiming Priority (2)

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DE29502765U DE29502765U1 (en) 1995-02-20 1995-02-20 Electromagnetic relay with manual operation
DE29502765U 1995-02-20

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EP0727801A2 true EP0727801A2 (en) 1996-08-21
EP0727801A3 EP0727801A3 (en) 1998-03-18
EP0727801B1 EP0727801B1 (en) 2001-07-25

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AT (1) ATE203629T1 (en)
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Cited By (3)

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Publication number Priority date Publication date Assignee Title
WO2001024214A1 (en) * 1999-09-29 2001-04-05 Tyco Electronics Logistics Ag Load-disconnecting switch, especially for use in motor vehicles
CN100550246C (en) * 2006-05-30 2009-10-14 浙江正泰电器股份有限公司 The sealed type electromagnetic relay that has the manual test switch
CN109285730A (en) * 2018-09-21 2019-01-29 厦门宏发电力电器有限公司 A kind of multiphase magnetic latching relay

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FR2756092B1 (en) * 1996-11-19 1999-01-29 Legrand Sa CONTACTOR WITH DUAL ELECTROMECHANICAL AND MANUAL CONTROL
DE102012006438A1 (en) * 2012-03-30 2013-10-02 Phoenix Contact Gmbh & Co. Kg Relay with two counter-operable switches

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US3842375A (en) * 1974-01-04 1974-10-15 Guardian Electric Mfg Co Electrically held three position cutout switch
DE3323481A1 (en) * 1983-06-30 1985-01-03 W. Gruner GmbH Relaisfabrik, 7209 Wehingen Relay
GB2193041A (en) * 1986-07-22 1988-01-27 Bach & Co Relay
EP0524135A2 (en) * 1991-07-18 1993-01-20 Elesta Ag Elektronik Relay

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US2824188A (en) * 1955-01-21 1958-02-18 Allard Instr Corp Magnetic device
US3842375A (en) * 1974-01-04 1974-10-15 Guardian Electric Mfg Co Electrically held three position cutout switch
DE3323481A1 (en) * 1983-06-30 1985-01-03 W. Gruner GmbH Relaisfabrik, 7209 Wehingen Relay
GB2193041A (en) * 1986-07-22 1988-01-27 Bach & Co Relay
EP0524135A2 (en) * 1991-07-18 1993-01-20 Elesta Ag Elektronik Relay

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001024214A1 (en) * 1999-09-29 2001-04-05 Tyco Electronics Logistics Ag Load-disconnecting switch, especially for use in motor vehicles
US6677842B1 (en) 1999-09-29 2004-01-13 Tyco Electronics Logistics Ag Load disconnecting switch especially for use in motor vehicles
CN100550246C (en) * 2006-05-30 2009-10-14 浙江正泰电器股份有限公司 The sealed type electromagnetic relay that has the manual test switch
CN109285730A (en) * 2018-09-21 2019-01-29 厦门宏发电力电器有限公司 A kind of multiphase magnetic latching relay

Also Published As

Publication number Publication date
DE29502765U1 (en) 1995-04-13
EP0727801A3 (en) 1998-03-18
DE59607334D1 (en) 2001-08-30
ATE203629T1 (en) 2001-08-15
EP0727801B1 (en) 2001-07-25

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