EP1135786B1 - Electromagnetic small relay - Google Patents

Electromagnetic small relay Download PDF

Info

Publication number
EP1135786B1
EP1135786B1 EP99963193A EP99963193A EP1135786B1 EP 1135786 B1 EP1135786 B1 EP 1135786B1 EP 99963193 A EP99963193 A EP 99963193A EP 99963193 A EP99963193 A EP 99963193A EP 1135786 B1 EP1135786 B1 EP 1135786B1
Authority
EP
European Patent Office
Prior art keywords
armature
spring
wing
relay according
base
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
EP99963193A
Other languages
German (de)
French (fr)
Other versions
EP1135786A1 (en
Inventor
Michael Dittmann
Jens Heinrich
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.)
TE Connectivity Solutions GmbH
Original Assignee
Tyco Electronics Logistics AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE1998150668 external-priority patent/DE19850668C1/en
Priority claimed from DE1998150667 external-priority patent/DE19850667C1/en
Application filed by Tyco Electronics Logistics AG filed Critical Tyco Electronics Logistics AG
Publication of EP1135786A1 publication Critical patent/EP1135786A1/en
Application granted granted Critical
Publication of EP1135786B1 publication Critical patent/EP1135786B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00Electromagnetic relays
    • H01H51/22Polarised relays
    • H01H51/2272Polarised relays comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature
    • H01H51/2281Contacts rigidly combined with armature
    • H01H51/229Blade-spring contacts alongside armature

Definitions

  • Such a relay is, for example, in EP 0 197 391 B2 described.
  • the two are movable contact springs on either side of the anchor and in line with this, while the bearing belts themselves in the form of torsion bars in the direction of the axis of rotation extend outside and in the same plane with Connection supports of the base are connected. It means that the length of the torsion bars across the entire width of the relay received.
  • EP 0 691 030 B1 describes a relay of similar construction known in which the bearing tapes in a Anchor longitudinal direction parallel direction from the spring support emerge and just next to the anchor in a to the base level perpendicular direction are bent to parallel to it extending bearing supports to be attached. To in this If the width of the relay is limited, the movable ones Contact springs even arranged below the armature; this however, in turn affects the overall height of the relay out.
  • the object of the present invention is to provide a relay type mentioned at the beginning for the purpose of another To build miniaturization even more compact and at the same time to specify monostable characteristics constructively, whereby a free space gained through the structural asymmetry sensible for the accommodation of coil or Contact connector elements should be used to total to be able to reduce the size of the relay.
  • this task is the relay of type mentioned solved in that of the two Anchor wings the second has a smaller width than the first and the contact spring arrangement in the area of second anchor wing is adapted to its smaller width.
  • the Anchor has two wings of different widths and the however, the space gained in this way is not wasted in the general cuboid housing remains, but the contact spring arms next to the narrower anchor wing - if there are any are present - can also be moved inwards, so that in this area, for example, leads to coil connections can be and in particular the bearing tapes for the Anchors, which also act as connections for the contact springs serve, no additional width of the overall construction need.
  • the pole pieces are attached to the adjusted according to different width anchor wings, so that the pole shoe associated with the second anchor wing has a reduced width with a correspondingly smaller Pole surface as the pole shoe facing the first armature wing having.
  • the relay shown in Figures 1 to 6 consists of two large assemblies, which are shown in Figure 1, namely from a magnet assembly 1 and a base assembly 2, the to be plugged together and then the full relay result.
  • the magnet assembly 1 is initially with a Plastic coating 3 ( Figure 2) overmolded, so that by Put one on top of the other and stick together to form a tight housing becomes.
  • the magnet assembly 1 has as a carrier 3 a bobbin 10 with two flanges 11 and 12, between which two webs 13 as winding supports run.
  • a winding 15 ( Figure 1) is then on through the webs 13 and Core 14 formed winding carrier applied.
  • In the flange 11 two coil pins 16 are also anchored; this extend perpendicular to a base plane 4 next to internally offset base sections 49 of the base assembly 2 to the bottom of the finished relay.
  • the core 14 forms with U-shaped bent ends Pole shoes 17 and 18, which are still closed descriptive anchor form pole faces 17a and 18a. It is the first pole piece 17 is made wider than the second Pole shoe 18 so that the one formed by the first pole shoe Pole area 17a is also larger than the pole area 18a of the second pole piece. Between the two pole pieces 17 and 18 a permanent magnet 20 is inserted (see also FIG. 4), which is shown in FIG Adaptation to the different width pole shoes 17 and 18 also has two sections of different widths, namely a first magnet section 21 with a larger width and a second magnet section 22 having a smaller width.
  • the permanent magnet 20 is lengthwise in a known manner magnetized three-pole, so that it has two at both ends Poles of the same name, in the example South Pole S and in the middle an opposite pole, in the example a north pole N, having. Accordingly, it generates in the two pole pieces 17 and 18 also South Pole S, while one is still closed descriptive anchor 24 below the central north pole N is stored.
  • This anchor 24 is a rocker anchor with two anchor wings 25 and 26, between which he has a roof shape has embossed middle section 27 with which it is below of the center pole N of the permanent magnet 20 (in compliance with a more or less large air gap) stored or without special storage pivoted about an axis of rotation 6 is.
  • the anchor wing 25 has the same width as that Pole shoe 17 with which it has a first working air gap 7 forms; the anchor wing 26 is also reduced in width like the pole piece 18 with which he makes a second Working air gap forms.
  • a contact spring assembly 28 connected to the armature has a plastic spring support 29, the two separate contact springs 30 and 31 through Injection molding connects.
  • Each of the two contact springs is made from two opposite to each other from the wrapping of the Spring support 29 emerging spring arms, namely the Contact spring 30 from a first spring arm 32 and one for this laterally offset second spring arm 33, the second Contact spring 31 from a first spring arm 34 and a second spring arm 35 also offset laterally inwards.
  • each contact spring has a bearing band 36 or 37, which is aligned with the first spring arm 32 or 34, however opposite to this, from the spring support 29 emerges and into a plane perpendicular to the base plane is bent at the top where it has a fastening tab 36a or 37a on a connection support 46a or 47a of the base, for example, by welding.
  • Spring arms 32,33,34 and 35 is at the free end Double contact split fork-like and on everyone Provide the fork end with a contact piece in the usual way.
  • the spring support 29 also forms in the area between the two contact springs 30 and 31 a trough-shaped Recording 38 for the anchor 24.
  • This recording 38 is with all around raised insulating walls 39, so that too sufficient insulation for very small distances between the contact springs 30 and 31 on the one hand and the armature 24 on the other hand is guaranteed.
  • the anchor receptacle 38 is with their internal dimensions exactly to the contour of the Adjusted anchor so that in the area of the narrower Anchor wing 26 also insulated the insulating walls 39 to the inside and the inward arrangement of the second Allow spring arms 33 and 35. That way created laterally by the spring arms 33 and 35 for the arrangement of the coil pins 16.
  • bearing belts 36 and 37 in addition to the spring arms 33 and 35 can be cut from the same sheet metal.
  • the rest are both contact springs with their spring arms and prefabricated the bearing tab from a common board and to form the spring assembly 28 with plastic molded.
  • the anchor 24 is in the receptacle 38 corresponding design of the side walls 39 form-fitting held.
  • the spring assembly 28 connected to the armature is shown in FIG. 6 once again shown completely how to use a base 40 too the base assembly is assembled according to Figure 1.
  • the Base 40 has a flat bottom 41, the underside of which defines the basic level 4.
  • In the base 40 are made of one PCB cut through contact connecting tracks Overmolding anchored with plastic. In the present example it is fixed contact carrier 42,43,44 and 45, the below the movable spring arms 32, 33, 34 and 35 lie and wear fixed contact pieces at their ends.
  • connection supports 46a and 47a There are also two contact spring terminals 46 and 47 in the Anchored base, which is angled vertically upwards Form connection supports 46a and 47a. At these connection supports 46a and 47a become the mounting tabs during assembly 36a and 37a welded. Since the mounting surfaces between the connection supports and the fastening tabs perpendicular to The bearing tapes can run with their base level Connection tabs are aligned in height so that the Contact springs the correct contact distance to the respective Take fixed contact carriers or their contact pieces; to the mounting tabs are the appropriate orientation welded.
  • the dimensioning of the bearing belts 36 and 37 allows a desired spring rate regardless of the thickness of the Adjust contact springs.
  • the vertical connection of the Bearing tapes also results in a high impact resistance of the Relay.
  • the contact connection elements 42 anchored in the base to 47 also each have a downward bent Pin 42a to 45a or 46b and 47b.
  • the connector pins can also be at right angles to Be bent for the purpose of surface mounting.
  • the base side walls 48 there are arranged on the base side walls 48 so that the encapsulated magnetic system clamped between them.
  • the Coil flange 11 are also downward projections 11a with the coil connecting pins 16 guided in them dimensioned that they have inwardly offset base sections 49 grab and also contribute to the fixation.
  • the air gap between the middle section 27 of the armature and the center pole of the permanent magnet 20 (on approximately 0). Then the remaining column between the assemblies of the Relay system sealed with cast resin.
  • a subsequent one Magnetic alignment of the permanent magnet 20 ensures that the relay responds at a desired voltage or back falls.
  • the function of the relay results for the specialist without more from construction; by the way, it is basically similar to the known relays Rocker armature.

Landscapes

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

Description

Die Erfindung betrifft ein elektromagnetisches Relais mit

  • einem Sockel aus Isolierstoff, welcher mit seiner Bodenseite eine Grundebene definiert und Festkontakte sowie Anschlüsse für bewegliche Kontaktfedern trägt,
  • einem bezüglich der Grundebene oberhalb des Sockels angeordneten, langgestreckten Wippanker mit zwei beiderseits einer Drehachse angeordneten Ankerflügeln,
  • einem isolierenden Federträger, der mit dem Anker verbunden ist und an beiden Längsseiten des Ankers jeweils eine Kontaktfeder trägt, wobei jede Kontaktfeder jeweils zwei Federarme bildet, die sich von der Einspannung in dem Federträger jeweils entgegengesetzt zueinander neben einem Ankerflügel erstrecken und deren kontaktgebende freie Enden mit je einem Festkontakt zusammenwirken, wobei jede Kontaktfeder weiterhin ein aus dem Federträger austretendes Lagerband bildet, das mit einer im Sockel verankerten Anschlußstütze verbunden ist,
  • einer mit ihrer Achse parallel zur Grundebene angeordneten Spule,
  • einem axial in der Spule angeordneten Kern, an dessen Enden sich zum Anker gerichtete Polschuhe anschließen, welche jeweils mit einem Ankerende einen Arbeitsluftspalt bilden, und
  • einer Dauermagnetanordnung, welche in beiden Polschuhen zwei gleichnamige Magnetpole und im Bereich der Ankerdrehachse einen dazu entgegengesetzten Magnetpol erzeugt.
The invention relates to an electromagnetic relay
  • a base made of insulating material, which defines a base level with its bottom side and carries fixed contacts and connections for movable contact springs,
  • an elongated rocker anchor arranged above the base with respect to the base plane with two anchor wings arranged on either side of an axis of rotation,
  • an insulating spring support, which is connected to the armature and carries a contact spring on both longitudinal sides of the armature, each contact spring forming two spring arms, each of which extends from the clamping in the spring support opposite to one another next to an armature wing and the contacting free ends of which each cooperate with a fixed contact, each contact spring also forming a bearing band emerging from the spring carrier, which is connected to a connection support anchored in the base,
  • a coil arranged with its axis parallel to the base plane,
  • a core arranged axially in the coil, at the ends of which are connected pole shoes directed towards the armature, which each form a working air gap with an armature end, and
  • a permanent magnet arrangement which produces two magnetic poles of the same name in both pole shoes and an opposite magnetic pole in the region of the armature axis of rotation.

Ein derartiges Relais ist beispielsweise in der EP 0 197 391 B2 beschrieben. Bei diesem bekannten Relais liegen die beiden beweglichen Kontaktfedern jeweils seitlich neben dem Anker und in einer Ebene mit diesem, während die Lagerbänder sich in Form von Torsionsstegen in Richtung der Drehachse nach außen erstrecken und in der gleichen Ebene mit Anschlußstützen des Sockels verbunden sind. Das bedeutet, daß die Länge der Torsionsstege in die gesamte Breite des Relais eingeht.Such a relay is, for example, in EP 0 197 391 B2 described. In this known relay, the two are movable contact springs on either side of the anchor and in line with this, while the bearing belts themselves in the form of torsion bars in the direction of the axis of rotation extend outside and in the same plane with Connection supports of the base are connected. It means that the length of the torsion bars across the entire width of the relay received.

Aus der EP 0 691 030 B1 ist ein ähnlich aufgebautes Relais bekannt, bei dem die Lagerbänder in einer zur Ankerlängsrichtung parallelen Richtung aus dem Federträger austreten und knapp neben dem Anker in einer zur Grundebene senkrechte Richtung gebogen sind, um an den dazu parallel verlaufenden Lagerstützen befestigt zu werden. Um in diesem Fall die Breite des Relais zu begrenzen, sind die beweglichen Kontaktfedern selbst unterhalb des Ankers angeordnet; dies wirkt sich allerdings wiederum auf die Bauhöhe des Relais aus.EP 0 691 030 B1 describes a relay of similar construction known in which the bearing tapes in a Anchor longitudinal direction parallel direction from the spring support emerge and just next to the anchor in a to the base level perpendicular direction are bent to parallel to it extending bearing supports to be attached. To in this If the width of the relay is limited, the movable ones Contact springs even arranged below the armature; this however, in turn affects the overall height of the relay out.

Diese bekannten Relais sind sowohl im Magnetsystem als auch im Kontaktsystem symmetrisch aufgebaut und daher grundsätzlich für eine bistabile Schaltcharakteristik prädestiniert. Vielfach ist jedoch ein monostabiler Betrieb erwünscht. Diese monostabile Charakteristik kann beispielsweise durch unsymmetrischen Abgleich des Dauermagneten, durch einseitige Trennbleche in den Arbeitsluftspalten bzw. durch einseitige Federvorspannung für den Anker eingestellt werden.These known relays are both in the magnet system as well constructed symmetrically in the contact system and therefore basically for a bistable switching characteristic predestined. In many cases, however, it is monostable he wishes. This monostable characteristic can for example, by asymmetrical comparison of the Permanent magnets, through one-sided separators in the Working air gaps or by one-sided spring preload for the anchor can be adjusted.

Aufgabe der vorliegenden Erfindung ist es, ein Relais der eingangs genannten Art zum Zweck einer weiteren Miniaturisierung noch kompakter aufzubauen und dabei eine monostabile Charakteristik konstruktiv vorzugeben, wobei ein durch die konstruktive Unsymmetrie gewonnener Freiraum sinnvoll für die Unterbringung von Spulen- bzw. Kontaktanschlußelementen genutzt werden soll, um insgesamt die Baugröße des Relais verkleinern zu können.The object of the present invention is to provide a relay type mentioned at the beginning for the purpose of another To build miniaturization even more compact and at the same time to specify monostable characteristics constructively, whereby a free space gained through the structural asymmetry sensible for the accommodation of coil or Contact connector elements should be used to total to be able to reduce the size of the relay.

Erfindungsgemäß wird diese Aufgabe bei dem Relais der eingangs genannten Art dadurch gelöst, daß von den beiden Ankerflügeln der zweite eine geringere Breite aufweist als der erste und die Kontaktfederanordnung im Bereich des zweiten Ankerflügels an dessen geringere Breite angepaßt ist.According to the invention, this task is the relay of type mentioned solved in that of the two Anchor wings the second has a smaller width than the first and the contact spring arrangement in the area of second anchor wing is adapted to its smaller width.

Durch die erfindungsgemäße Konstruktion wird eine Monostabilität des Magnetsystems dadurch erreicht, daß der Anker zwei Flügel unterschiedlicher Breite aufweist und der dadurch gewonnen Raum jedoch nicht ungenutzt in dem generell quaderförmigen Gehäuse bleibt, sondern die Kontaktfederarme neben dem schmäleren Ankerflügel - soweit dort welche vorhanden sind - auch nach innen versetzt werden, so daß in diesem Bereich beispielsweise Spulenanschlüsse vorbeigeführt werden können und insbesondere auch die Lagerbänder für den Anker, die gleichzeitig als Anschlüsse für die Kontaktfedern dienen, keine zusätzliche Breite der Gesamtkonstruktion benötigen. Vorzugsweise werden auch die Polschuhe an die entsprechend unterschiedlich breiten Ankerflügel angepaßt, so daß der dem zweiten Ankerflügel zugeordnete Polschuh eine verminderte Breite mit einer entsprechend geringeren Polfläche als der dem ersten Ankerflügel zugewandte Polschuh aufweist.Due to the construction according to the invention Monostability of the magnet system achieved in that the Anchor has two wings of different widths and the however, the space gained in this way is not wasted in the general cuboid housing remains, but the contact spring arms next to the narrower anchor wing - if there are any are present - can also be moved inwards, so that in this area, for example, leads to coil connections can be and in particular the bearing tapes for the Anchors, which also act as connections for the contact springs serve, no additional width of the overall construction need. Preferably, the pole pieces are attached to the adjusted according to different width anchor wings, so that the pole shoe associated with the second anchor wing has a reduced width with a correspondingly smaller Pole surface as the pole shoe facing the first armature wing having.

Weitere vorteilhafte Ausgestaltungen des erfindungsgemäßen Relais sind in den Unteransprüchen angegeben.Further advantageous embodiments of the invention Relays are specified in the subclaims.

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

  • Figur 1 zwei Hauptbaugruppen, eine Magnetbaugruppe und eine Sockelbaugruppe, die zusammen ein erfindungsgemäßes Relais bilden,
  • Figur 2 ein fertig zusammengebautes Relais mit umspritztem Magnetsystem, teilweise aufgeschnitten, in perspektivischer Darstellung,
  • Figur 3 die Magnetbaugruppe von Figur 1 in Einzelteilen (ohne Wicklung),
  • Figur 4 eine perspektivische Darstellung der Magnetkreisteile des Relais von Figur 1 (ohne Spulenkörper),
  • Figur 5 die Anker-Kontaktfeder-Baugruppe von Figur 1 vor dem Zusammenbau und
  • Figur 6 die Ankerbaugruppe mit dem Sockel des Relais von Figur 1 vor dem Zusammenbau.
  • The invention is explained in more detail using an exemplary embodiment with reference to the drawing. It shows
  • 1 shows two main assemblies, a magnet assembly and a base assembly, which together form a relay according to the invention,
  • FIG. 2 shows a fully assembled relay with an encapsulated magnet system, partially cut away, in a perspective view,
  • 3 shows the magnet assembly of FIG. 1 in individual parts (without winding),
  • FIG. 4 shows a perspective illustration of the magnetic circuit parts of the relay from FIG. 1 (without coil former),
  • Figure 5 shows the armature contact spring assembly of Figure 1 before assembly and
  • Figure 6 shows the armature assembly with the base of the relay of Figure 1 prior to assembly.
  • Das in den Figuren 1 bis 6 gezeigte Relais besteht aus zwei großen Baugruppen, die in Figur 1 gezeigt sind, nämlich aus einer Magnetbaugruppe 1 und einer Sockelbaugruppe 2, die aufeinandergesteckt werden und dann das vollständige Relais ergeben. Die Magnetbaugruppe 1 wird dabei zunächst mit einer Kunststoff-Umhüllung 3 (Figur 2) umspritzt, so daß durch Aufeinanderstecken und Verkleben ein dichtes Gehäuse gebildet wird. Im einzelnen besitzt die Magnetbaugruppe 1 als Träger gemäß Figur 3 einen Spulenkörper 10 mit zwei Flanschen 11 und 12, zwischen denen als Wicklungsträger zwei Stege 13 verlaufen. In den Spalt 13a zwischen diesen beiden Stegen 13 kann von unten ein Kern 14 eingeschoben werden. Eine Wicklung 15 (Figur 1) wird dann auf den durch die Stege 13 und den Kern 14 gebildeten Wicklungsträger aufgebracht. Im Flansch 11 sind außerdem zwei Spulenanschlußstifte 16 verankert; diese erstrecken sich senkrecht zu einer Grundebene 4 neben nach innen versetzten Sockelabschnitten 49 der Sockelbaugruppe 2 zur Unterseite des fertigen Relais.The relay shown in Figures 1 to 6 consists of two large assemblies, which are shown in Figure 1, namely from a magnet assembly 1 and a base assembly 2, the to be plugged together and then the full relay result. The magnet assembly 1 is initially with a Plastic coating 3 (Figure 2) overmolded, so that by Put one on top of the other and stick together to form a tight housing becomes. Specifically, the magnet assembly 1 has as a carrier 3 a bobbin 10 with two flanges 11 and 12, between which two webs 13 as winding supports run. In the gap 13a between these two webs 13th a core 14 can be inserted from below. A winding 15 (Figure 1) is then on through the webs 13 and Core 14 formed winding carrier applied. In the flange 11 two coil pins 16 are also anchored; this extend perpendicular to a base plane 4 next to internally offset base sections 49 of the base assembly 2 to the bottom of the finished relay.

    Der Kern 14 bildet mit U-förmig umgebogenen Enden jeweils Polschuhe 17 und 18, die gegenüber einem noch zu beschreibenden Anker Polflächen 17a und 18a bilden. Dabei ist der erste Polschuh 17 breiter ausgeführt als der zweite Polschuh 18, so daß die von dem ersten Polschuh gebildete Polfläche 17a ebenfalls größer ist als die Polfläche 18a des zweiten Polschuhs. Zwischen den beiden Polschuhen 17 und 18 ist ein Dauermagnet 20 eingefügt (siehe auch Figur 4), der in Anpassung an die unterschiedlich breiten Polschuhe 17 und 18 ebenfalls zwei Abschnitte unterschiedlicher Breite aufweist, nämlich einen ersten Magnetabschnitt 21 mit größerer Breite und einen zweiten Magnetabschnitt 22 mit geringerer Breite. Der Dauermagnet 20 ist in bekannter Weise der Länge nach dreipolig aufmagnetisiert, so daß er an beiden Enden zwei gleichnamige Pole, im Beispiel Südpole S und in der Mitte einen entgegengesetzten Pol, im Beispiel einen Nordpol N, aufweist. Entsprechend erzeugt er in den beiden Polschuhen 17 und 18 ebenfalls Südpole S, während ein noch zu beschreibender Anker 24 unterhalb des mittleren Nordpols N gelagert ist.The core 14 forms with U-shaped bent ends Pole shoes 17 and 18, which are still closed descriptive anchor form pole faces 17a and 18a. It is the first pole piece 17 is made wider than the second Pole shoe 18 so that the one formed by the first pole shoe Pole area 17a is also larger than the pole area 18a of the second pole piece. Between the two pole pieces 17 and 18 a permanent magnet 20 is inserted (see also FIG. 4), which is shown in FIG Adaptation to the different width pole shoes 17 and 18 also has two sections of different widths, namely a first magnet section 21 with a larger width and a second magnet section 22 having a smaller width. The permanent magnet 20 is lengthwise in a known manner magnetized three-pole, so that it has two at both ends Poles of the same name, in the example South Pole S and in the middle an opposite pole, in the example a north pole N, having. Accordingly, it generates in the two pole pieces 17 and 18 also South Pole S, while one is still closed descriptive anchor 24 below the central north pole N is stored.

    Der bereits erwähnte Anker 24 ist gemäß Figur Teil der Sockelbaugruppe und er soll nunmehr anhand von Figur 5 zusammen mit der Kontaktfedereinheit beschrieben werden. Dieser Anker 24 ist als Wippanker mit zwei Ankerflügeln 25 und 26 ausgebildet, zwischen denen er einen dachförmig geprägten Mittelabschnitt 27 besitzt, mit dem er unterhalb des Mittelpols N des Dauermagneten 20 (unter Einhaltung eines mehr oder weniger großen Lagerluftspaltes) gelagert bzw. ohne besondere Lagerung um eine Drehachse 6 schwenkbar angeordnet ist. Der Ankerflügel 25 besitzt die gleiche Breite wie der Polschuh 17, mit dem er einen ersten Arbeitsluftspalt 7 bildet; der Ankerflügel 26 ist ebenso in der Breite reduziert wie der Polschuh 18, mit dem er einen zweiten Arbeitsluftspalt bildet.The already mentioned anchor 24 is part of the figure Base assembly and it should now be based on Figure 5 be described together with the contact spring unit. This anchor 24 is a rocker anchor with two anchor wings 25 and 26, between which he has a roof shape has embossed middle section 27 with which it is below of the center pole N of the permanent magnet 20 (in compliance with a more or less large air gap) stored or without special storage pivoted about an axis of rotation 6 is. The anchor wing 25 has the same width as that Pole shoe 17 with which it has a first working air gap 7 forms; the anchor wing 26 is also reduced in width like the pole piece 18 with which he makes a second Working air gap forms.

    Eine mit dem Anker verbundene Kontaktfeder-Baugruppe 28 besitzt einen aus Kunststoff bestehenden Federträger 29, der zwei voneinander getrennte Kontaktfedern 30 und 31 durch Umspritzung verbindet. Jede der beiden Kontaktfedern besteht aus zwei entgegengesetzt zueinander aus der Umhüllung des Federträgers 29 austretenden Federarmen, nämlich die Kontaktfeder 30 aus einem ersten Federarm 32 und einem dazu seitlich versetzten zweiten Federarm 33, die zweite Kontaktfeder 31 aus einem ersten Federarm 34 und einem ebenfalls seitlich nach innen versetzten zweiten Federarm 35. Außerdem besitzt jede Kontaktfeder noch ein Lagerband 36 bzw. 37, welches fluchtend mit dem ersten Federarm 32 bzw. 34, jedoch entgegengesetzt zu diesem, aus dem Federträger 29 austritt und in eine zur Grundebene senkrechte Ebene nach oben gebogen ist, wo es über einen Befestigungslappen 36a bzw. 37a an einer Anschlußstütze 46a bzw. 47a des Sockels, beispielsweise durch Schweißen, befestigt ist. Jeder der Federarme 32,33,34 und 35 ist am freien Ende zur Doppelkontaktgabe gabelförmig gespalten und an jedem Gabelende mit einem Kontaktstück in üblicher Weise versehen.A contact spring assembly 28 connected to the armature has a plastic spring support 29, the two separate contact springs 30 and 31 through Injection molding connects. Each of the two contact springs is made from two opposite to each other from the wrapping of the Spring support 29 emerging spring arms, namely the Contact spring 30 from a first spring arm 32 and one for this laterally offset second spring arm 33, the second Contact spring 31 from a first spring arm 34 and a second spring arm 35 also offset laterally inwards. In addition, each contact spring has a bearing band 36 or 37, which is aligned with the first spring arm 32 or 34, however opposite to this, from the spring support 29 emerges and into a plane perpendicular to the base plane is bent at the top where it has a fastening tab 36a or 37a on a connection support 46a or 47a of the base, for example, by welding. Everyone who Spring arms 32,33,34 and 35 is at the free end Double contact split fork-like and on everyone Provide the fork end with a contact piece in the usual way.

    Der Federträger 29 bildet außerdem im Bereich zwischen den beiden Kontaktfedern 30 und 31 eine wannenförmig gestaltete Aufnahme 38 für den Anker 24. Diese Aufnahme 38 ist mit ringsum hochgezogenen Isolierwänden 39 versehen, so daß auch bei sehr kleinen Bauabständen eine ausreichende Isolierung zwischen den Kontaktfedern 30 und 31 einerseits und dem Anker 24 andererseits gewährleistet ist. Die Ankeraufnahme 38 ist mit ihren Innenabmessungen im übrigen exakt an die Kontur des Ankers angepaßt, so daß im Bereich des schmäleren Ankerflügels 26 auch die Isolierwände 39 nach innen versetzt sind und die nach innen versetzte Anordnung der zweiten Federarme 33 und 35 ermöglichen. Auf diese Weise wird seitlich von den Federarmen 33 und 35 Platz geschaffen für die Anordnung der Spulenanschlußstifte 16. Auch können auf diese Weise die Lagerbänder 36 und 37 neben den Federarmen 33 und 35 aus der gleichen Blechplatine geschnitten werden. Im übrigen werden beide Kontaktfedern mit ihren Federarmen und den Lagerlappen aus einer gemeinsamen Platine vorgefertigt und zur Bildung der Federbaugruppe 28 mit Kunststoff umspritzt. Der Anker 24 wird in der Aufnahme 38 durch entsprechende Gestaltung der Seitenwände 39 formschlüssig gehalten.The spring support 29 also forms in the area between the two contact springs 30 and 31 a trough-shaped Recording 38 for the anchor 24. This recording 38 is with all around raised insulating walls 39, so that too sufficient insulation for very small distances between the contact springs 30 and 31 on the one hand and the armature 24 on the other hand is guaranteed. The anchor receptacle 38 is with their internal dimensions exactly to the contour of the Adjusted anchor so that in the area of the narrower Anchor wing 26 also insulated the insulating walls 39 to the inside and the inward arrangement of the second Allow spring arms 33 and 35. That way created laterally by the spring arms 33 and 35 for the arrangement of the coil pins 16. Also can this way the bearing belts 36 and 37 in addition to the spring arms 33 and 35 can be cut from the same sheet metal. in the the rest are both contact springs with their spring arms and prefabricated the bearing tab from a common board and to form the spring assembly 28 with plastic molded. The anchor 24 is in the receptacle 38 corresponding design of the side walls 39 form-fitting held.

    Die mit dem Anker verbundene Federbaugruppe 28 ist in Figur 6 noch einmal komplett gezeigt, wie sie mit einem Sockel 40 zu der Sockelbaugruppe gemäß Figur 1 zusammengesetzt wird. Der Sockel 40 besitzt einen flachen Boden 41, dessen Unterseite die Grundebene 4 definiert. In dem Sockel 40 sind aus einer Platine freigeschnittene Kontakt-Anschlußbahnen durch Umspritzen mit Kunststoff verankert. Im vorliegenden Beispiel handelt es sich um Festkontaktträger 42,43,44 und 45, die jeweils unterhalb der beweglichen Federarme 32,33,34 und 35 liegen und an ihren Enden jeweils Festkontaktstücke tragen.The spring assembly 28 connected to the armature is shown in FIG. 6 once again shown completely how to use a base 40 too the base assembly is assembled according to Figure 1. The Base 40 has a flat bottom 41, the underside of which defines the basic level 4. In the base 40 are made of one PCB cut through contact connecting tracks Overmolding anchored with plastic. In the present example it is fixed contact carrier 42,43,44 and 45, the below the movable spring arms 32, 33, 34 and 35 lie and wear fixed contact pieces at their ends.

    Außerdem sind zwei Kontaktfederanschlüsse 46 und 47 in dem Sockel verankert, welche nach oben senkrecht abgewinkelte Anschlußstützen 46a und 47a bilden. An diesen Anschlußstützen 46a und 47a werden bei der Montage die Befestigungslappen 36a und 37a angeschweißt. Da die Befestigungsflächen zwischen den Anschlußstützen und den Befestigungslappen senkrecht zur Grundebene verlaufen, können die Lagerbänder mit ihren Anschlußlappen in der Höhe so ausgerichtet werden, daß die Kontaktfedern den richtigen Kontaktabstand zu den jeweiligen Festkontaktträgern bzw. deren Kontaktstücken einnehmen; nach der entsprechenden Ausrichtung werden die Befestigungslappen verschweißt. Es ist aber auch möglich, bei der Befestigung der Federbaugruppe 5 diese zusammen mit dem Anker 24 um einen bestimmten Winkel um die Ankerdrehachse zu verschwenken und so bereits bei der Befestigung eine Vorzugsstellung einzustellen, so daß auf diese Weise ein monostabiles Schaltverhalten voreingestellt oder zusätzlich verstärkt wird. Die Befestigung kann mittels Widerstandschweißung, Laserschweißung oder auch auf andere Weise erfolgen.There are also two contact spring terminals 46 and 47 in the Anchored base, which is angled vertically upwards Form connection supports 46a and 47a. At these connection supports 46a and 47a become the mounting tabs during assembly 36a and 37a welded. Since the mounting surfaces between the connection supports and the fastening tabs perpendicular to The bearing tapes can run with their base level Connection tabs are aligned in height so that the Contact springs the correct contact distance to the respective Take fixed contact carriers or their contact pieces; to the mounting tabs are the appropriate orientation welded. But it is also possible when fixing the spring assembly 5 together with the armature 24 by one to pivot certain angle about the armature axis of rotation and a preferred position already when fastening adjust so that in this way a monostable Switching behavior preset or additionally reinforced becomes. The attachment can be done using resistance welding, Laser welding or done in another way.

    Die Dimensionierung der Lagerbänder 36 und 37 gestattet es, eine gewünschte Federrate unabhängig von der Dicke der Kontaktfedern einzustellen. Die vertikale Anbindung der Lagerbänder ergibt außerdem eine hohe Stoßfestigkeit des Relais. Die im Sockel verankerten Kontaktanschlußelemente 42 bis 47 besitzen außerdem jeweils einen nach unten abgebogenen Anschlußstift 42a bis 45a bzw. 46b und 47b. Wie in Figur 2 zu sehen ist, können die Anschlußstifte auch rechtwinkelig zum Zweck der Oberflächenmontage abgebogen werden.The dimensioning of the bearing belts 36 and 37 allows a desired spring rate regardless of the thickness of the Adjust contact springs. The vertical connection of the Bearing tapes also results in a high impact resistance of the Relay. The contact connection elements 42 anchored in the base to 47 also each have a downward bent Pin 42a to 45a or 46b and 47b. As in Figure 2 too can be seen, the connector pins can also be at right angles to Be bent for the purpose of surface mounting.

    Zur Komplettierung des dargestellten Relais wird das Magnetsystem 1 gemäß Figur 1, das vorzugsweise gemäß Figur 2 umspritzt wird, auf die Sockelbaugruppe 2 geschoben. Dabei sind am Sockel Seitenwände 48 so angeordnet, daß das umspritzte Magnetsystem zwischen ihnen festklemmt. Am Spulenflansch 11 sind außerdem nach unten ragende Ansätze 11a mit den in ihnen geführten Spulenanschlußstiften 16 so bemessen, daß sie über nach innen versetzte Sockelabschnitte 49 greifen und ebenfalls zur Fixierung beitragen. Beim Aufschieben der Magnetbaugruppe 1 auf die Sockelbaugruppe 2 wird außerdem der Luftspalt zwischen dem Mittelabschnitt 27 des Ankers und dem Mittelpol des Dauermagneten 20 (auf annähernd 0) eingestellt. Anschließend werden die verbleibenden Spalte zwischen den Baugruppen des Relaissystems mit Gießharz abgedichtet. Ein anschließender magnetischer Abgleich des Dauermagneten 20 stellt sicher, daß das Relais bei einer gewünschten Spannung anspricht bzw. rückfällt.To complete the relay shown, this is Magnet system 1 according to FIG. 1, preferably according to FIG. 2 is overmolded, pushed onto the base assembly 2. there are arranged on the base side walls 48 so that the encapsulated magnetic system clamped between them. At the Coil flange 11 are also downward projections 11a with the coil connecting pins 16 guided in them dimensioned that they have inwardly offset base sections 49 grab and also contribute to the fixation. At the Sliding the magnet assembly 1 onto the base assembly 2 the air gap between the middle section 27 of the armature and the center pole of the permanent magnet 20 (on approximately 0). Then the remaining column between the assemblies of the Relay system sealed with cast resin. A subsequent one Magnetic alignment of the permanent magnet 20 ensures that the relay responds at a desired voltage or back falls.

    Die Funktion des Relais ergibt sich für den Fachmann ohne weiteres aus der Konstruktion; sie ist im übrigen grundsätzlich ähnlich wie bei den bekannten Relais mit Wippanker.The function of the relay results for the specialist without more from construction; by the way, it is basically similar to the known relays Rocker armature.

    Claims (14)

    1. An electromagnetic relay, having
         a base (40) of insulating material which defines a base plane (4) by means of its bottom side and carries fixed contacts (42, 43, 44, 45) and terminals for movable spring contacts (46, 47),
         an elongate rocker armature (24) arranged above the base (40) in relation to the base plane (4) and having two armature wings (25, 26) arranged on either side of an axis of rotation (6),
         an insulating spring carrier (29) which is connected to the armature (24) and carries on each longitudinal side of the armature a respective spring contact (30, 31), with each spring contact (30, 31) forming in each case two spring arms (32, 33; 34, 35) which from where they are clamped in the spring carrier (29) extend in each case in opposition to one another next to one of the armature wings (25, 26) and whereof the contact-making free ends cooperate with a respective fixed contact, with each spring contact (30, 31) furthermore forming a bearing strip (36, 37) which projects out of the spring carrier (29) and is connected to a terminal support (46a, 47a) anchored in the base (40),
         a coil (15) arranged with its axis parallel to the base plane (4),
         a core (14) which is arranged axially in the coil (15) and whereof the ends are adjoined by pole shoes (17, 18) directed towards the armature (24) and each forming an operational air gap (7, 8) with an armature end, and
         a permanent magnet arrangement (20) which generates two like magnetic poles (S) in both pole shoes (17, 18) and a magnetic pole (N) opposed thereto in the region of the axis (6) of rotation of the armature,
         characterised in that
         the second armature wing (26) has a smaller width than the first armature wing (25), and the spring contact arrangement (33, 35) is adapted in the region of the second armature wing (26) to the smaller width thereof.
    2. A relay according to Claim 1,
         characterised in that on the side of the bearing strip (36, 37) in each case the associated armature wing (26) is recessed inwards in its width, and in that in each case a further spring arm (33, 35) is arranged between the bearing strip (36, 37) and the armature wing (26).
    3. A relay according to Claim 1,
         characterised in that the two bearing strips project out of the carrier, mutually diagonally opposed in relation to a centre normal of the armature, and in that both armature wings are recessed accordingly in mutually diagonally opposed manner to make space for diagonally attached second spring arms.
    4. A relay according to one of Claims 1 or 2,
         characterised in that of the two armature wings (25, 26) the second (26) has a smaller width than the first (25), in that two first spring arms (32, 34) are arranged on either side next to the wide armature wing (25), in that two second spring arms (33, 35) are arranged, offset inwards, on either side next to the narrow armature wing (26), and in that the two bearing strips (36, 37) each project out of the carrier (29) next to the second spring arms (33, 35).
    5. A relay according to Claim 4,
         characterised in that each of the two spring contacts (30, 31) has in each case a first spring arm (32, 34) extending next to the first armature wing (25) and a second, inwardly offset spring arm (33, 35) extending next to the second armature wing (26).
    6. A relay according to one of Claims 4 or 5,
         characterised in that coil terminal elements (16) are guided in each case outwards, perpendicular to the base plane (4), laterally next to the second armature wing (26) and the second spring arms (33, 35).
    7. A relay according to one of Claims 4 to 6,
         characterised in that the pole shoe (17) opposite the wide armature wing (25) forms a correspondingly wide pole face and the pole shoe (18) opposite the narrow armature wing (26) forms a narrow pole face.
    8. A relay according to one of Claims 1 to 7,
         characterised in that the core (14) is constructed in a U shape with pole shoes (17, 18) integrally formed in one piece thereon.
    9. A relay according to Claim 8,
         characterised in that a coil body (10) carrying the coil winding (15) has, over the entire length of the winding, a slot (13a) into which the core (14) is inserted perpendicular to the axis of the winding.
    10. A relay according to Claim 8,
         characterised in that the core is embedded in a coil body.
    11. A relay according to one of Claims 4 to 10,
         characterised in that a permanent magnet (20) arranged between the armature (24) and the coil (15) and parallel to the coil axis has a wide magnet portion (21) arranged above the wide armature wing and a narrow magnet portion (22) arranged above the narrow armature wing (26).
    12. A relay according to one of Claims 1 to 11,
         characterised in that a tray-shaped receiver (38) for the armature (24) is integrally formed on the spring carrier (29) with upright insulating walls (39) all the way around, and the armature (24) is secured with force fit and/or form fit in the tray-shaped receiver.
    13. A relay according to one of Claims 1 to 12,
         characterised in that the terminal elements (42, 43, 44, 45, 46, 47) for the fixed and movable contact elements are part of a punched grid which is embedded in the base (40) and from which terminal pins (42a, 43a, 44a, 45a, 46b, 47b) are bent towards the underside and fixed contact carriers (42, 43, 44, 45) are exposed on the upper side and bearing supports (46a, 47a) for the spring contacts (30, 31) are bent perpendicularly upwards.
    14. A relay according to one of Claims 1 to 13,
         characterised in that the magnet assembly (I) formed by the coil (15), the core (14) having the pole shoes (17, 18) and the permanent magnet (20) is encased in synthetic material and forms a closed housing by being connected to a base assembly which carries the base (40) with the armature (24) and the movable contact arrangement (29, 30, 31).
    EP99963193A 1998-11-03 1999-11-03 Electromagnetic small relay Expired - Lifetime EP1135786B1 (en)

    Applications Claiming Priority (5)

    Application Number Priority Date Filing Date Title
    DE19850668 1998-11-03
    DE19850667 1998-11-03
    DE1998150668 DE19850668C1 (en) 1998-11-03 1998-11-03 Small monostable polarised electromagnetic relay
    DE1998150667 DE19850667C1 (en) 1998-11-03 1998-11-03 Small electromagnetic relay with rocking armature
    PCT/DE1999/003512 WO2000026932A1 (en) 1998-11-03 1999-11-03 Electromagnetic small relay

    Publications (2)

    Publication Number Publication Date
    EP1135786A1 EP1135786A1 (en) 2001-09-26
    EP1135786B1 true EP1135786B1 (en) 2002-10-09

    Family

    ID=26049920

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99963193A Expired - Lifetime EP1135786B1 (en) 1998-11-03 1999-11-03 Electromagnetic small relay

    Country Status (3)

    Country Link
    EP (1) EP1135786B1 (en)
    DE (1) DE59903065D1 (en)
    WO (1) WO2000026932A1 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN107833792A (en) * 2017-11-07 2018-03-23 厦门宏发信号电子有限公司 A kind of microminiature electromagnetic relay of high withstand voltage

    Family Cites Families (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19719357C1 (en) * 1997-05-07 1998-10-22 Siemens Ag Miniature electromagnetic relay

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN107833792A (en) * 2017-11-07 2018-03-23 厦门宏发信号电子有限公司 A kind of microminiature electromagnetic relay of high withstand voltage
    CN107833792B (en) * 2017-11-07 2020-03-06 厦门宏发信号电子有限公司 High-voltage-resistant subminiature electromagnetic relay

    Also Published As

    Publication number Publication date
    EP1135786A1 (en) 2001-09-26
    WO2000026932A1 (en) 2000-05-11
    DE59903065D1 (en) 2002-11-14

    Similar Documents

    Publication Publication Date Title
    DE2454967C3 (en) Poled electromagnetic relay
    DE4406682C2 (en) Magnetic coil unit and magnetic contactor with a magnetic coil
    DE3526852A1 (en) MAGNETIC CIRCUIT DEVICE
    EP0281950B1 (en) Electromagnetic relay
    DE3303665A1 (en) POLARIZED ELECTROMAGNETIC RELAY
    EP0129068B1 (en) Miniaturised electromagnetic relay, and method for its manufacture
    DE4408980A1 (en) Electromagnetic relay
    DE2748544A1 (en) MINIATURE RELAY
    DE3224468A1 (en) RELAY WITH BRIDGE CONTACT SPRING
    DE2633734C2 (en) Miniature electromagnetic relay
    EP1135786B1 (en) Electromagnetic small relay
    EP0308819A2 (en) Electromagnetic relay
    EP0869525A1 (en) Electromagnetic relay
    DE3213606A1 (en) BISTABLE RELAY
    DE19850668C1 (en) Small monostable polarised electromagnetic relay
    DE3047608A1 (en) ELECTROMAGNETIC RELAY AND METHOD FOR THE PRODUCTION THEREOF
    EP0846330B1 (en) Electromagnetic relay and its use on a printed circuit board
    DE19850667C1 (en) Small electromagnetic relay with rocking armature
    EP1149400A1 (en) Electric device with a connection clip and a receiving fixture for a second electric device
    DE3046947C2 (en)
    DE3508795C2 (en)
    DE3225830C2 (en) Electromagnetic rotating armature relay
    DE3802688C2 (en) Polarized relay
    DE19635275C1 (en) Polarized relay
    DE2703584C2 (en) Electromagnetic relay

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    17P Request for examination filed

    Effective date: 20010601

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    GRAG Despatch of communication of intention to grant

    Free format text: ORIGINAL CODE: EPIDOS AGRA

    17Q First examination report despatched

    Effective date: 20011228

    RAP1 Party data changed (applicant data changed or rights of an application transferred)

    Owner name: TYCO ELECTRONICS LOGISTICS AG

    GRAG Despatch of communication of intention to grant

    Free format text: ORIGINAL CODE: EPIDOS AGRA

    GRAH Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOS IGRA

    GRAH Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOS IGRA

    GRAA (expected) grant

    Free format text: ORIGINAL CODE: 0009210

    AK Designated contracting states

    Kind code of ref document: B1

    Designated state(s): DE FR GB

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    Free format text: NOT ENGLISH

    REF Corresponds to:

    Ref document number: 59903065

    Country of ref document: DE

    Date of ref document: 20021114

    GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

    Effective date: 20030204

    ET Fr: translation filed
    PLBE No opposition filed within time limit

    Free format text: ORIGINAL CODE: 0009261

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

    26N No opposition filed

    Effective date: 20030710

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: GB

    Payment date: 20051026

    Year of fee payment: 7

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: FR

    Payment date: 20051117

    Year of fee payment: 7

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: DE

    Payment date: 20060102

    Year of fee payment: 7

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: DE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20070601

    GBPC Gb: european patent ceased through non-payment of renewal fee

    Effective date: 20061103

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: ST

    Effective date: 20070731

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: GB

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20061103

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: FR

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20061130