EP0118843B1 - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

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Publication number
EP0118843B1
EP0118843B1 EP84102165A EP84102165A EP0118843B1 EP 0118843 B1 EP0118843 B1 EP 0118843B1 EP 84102165 A EP84102165 A EP 84102165A EP 84102165 A EP84102165 A EP 84102165A EP 0118843 B1 EP0118843 B1 EP 0118843B1
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EP
European Patent Office
Prior art keywords
relay
inner housing
housing member
sealing compound
cover
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Expired
Application number
EP84102165A
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German (de)
French (fr)
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EP0118843A2 (en
EP0118843A3 (en
Inventor
Werner Minks
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Alcatel Lucent NV
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Alcatel NV
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Application filed by Alcatel NV filed Critical Alcatel NV
Priority to AT84102165T priority Critical patent/ATE40019T1/en
Publication of EP0118843A2 publication Critical patent/EP0118843A2/en
Publication of EP0118843A3 publication Critical patent/EP0118843A3/en
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Publication of EP0118843B1 publication Critical patent/EP0118843B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/023—Details concerning sealing, e.g. sealing casing with resin

Definitions

  • the invention relates to an electromagnetic relay according to the preamble of claim 1.
  • Such relays are increasingly required in a so-called wash-tight version. This is achieved, for example, in that the edge of the lid protrudes below the bottom surface and this space is poured out when the relays are turned over.
  • the potting compound it is z. B. from DE-A-2 851 329 and DE-U-7 821 508 known to provide the bottom underside with a network of grooves that lead to the separation points between housing parts and between housing parts and exclusion contacts.
  • a relay can be filled practically from the inside by arranging suitable storage chambers on the inside of a housing part which are filled with potting compound. Then a lid or a hood is applied and the relay is pivoted into such a position that the casting compound runs out of the storage chamber and flows to the points to be sealed.
  • a storage chamber can also be filled from the outside through an opening in the outside of the housing. The filling openings themselves are apparently not closed.
  • an outer storage room is known from DE-B-2 717 348.
  • a box-like housing connected to the capillary gap formed between the base body and protective cover storage space through a recess, for. B. formed at the edge of the protective hood. In this way, however, no internal sealing points, etc. can be cast.
  • the object is to be able to make a relay wash-proof in a simple manner, without the relay having to be pivoted into another position during casting or curing, and without the base body wall having to be so high that it reaches the protective hood reaches up. Furthermore, the relay should be easy to handle after potting.
  • the miniature relay 1 has an essentially trough-like inner housing part 6, which is formed from two housing shells 2, 3 and a flange 4 of a coil former 5, and a hood 7, which extends over the inner housing part 6 approximately to the bottom 8.
  • the two housing shells 2, 3 have an L-shape in cross section (see FIG. 2) and can also have an upper ceiling section to form a closed space, so that they form the shape of a U lying on one leg in cross section.
  • the connecting parts 11 of the contacts 12 with the connections 13 are molded in a manner known per se.
  • the inner housing part 6 can also be a single plastic part or it can be composed of several parts, for example of two side walls 9, 10 and a central U-shaped part.
  • the individual housing parts can be held together by the hood 7 or previously connected by suitable measures, for example by plugging, gluing, welding by means of ultrasound, etc.
  • the magnet system of the relay 1 which consists of the coil former 5, a winding 14, a magnetic core 15, a magnetically and mechanically fixed magnetic yoke 16 and a hinged armature 17, is accommodated.
  • stand tabs 18 are formed on the bobbin 5, with which it stands on the inner bottom surface 19 of the bottom 8.
  • the butt joints 20 present between the individual components must be tightly closed. This takes place from the inside in that in at least one wall, in particular in one of the side walls 9, 10, of the inner housing part 6, at least one opening 21 is provided, through which potting compound 22 can be filled in from the outside. This runs on the inside of the bottom 8 of the inner housing part 6 and, due to capillary action, runs into the butt joints 20 of the relatively closely adjacent housing shells 2, 3.
  • At least one housing shell 2, 3 and / or in the flange 4 there is at least one opening 23 which extends down to the bottom surface 19 of the inner housing part 6 and through which casting compound 22 can flow from the inside to the outside.
  • the openings 23 can extend as a slot 25 from the lower edge of the opening 21 down to the surface 19 of the bottom 8 or the openings 23 can be formed by small bores 26 which are provided above the bottom 8 but up to the bottom surface 19 reach down.
  • the openings 23 can be distributed around the circumference in such a way that a uniform course to all separation points 20 can take place in a certain time unit.
  • the potting compound 22 one is advantageously chosen which has a lower viscosity when the temperature rises. As a result, after pouring the same and attaching the hood 7 by heating, a faster and more uniform distribution and a smooth running in the butt joints 20 can be achieved.
  • Potting from the inside can advantageously be used to remove internal parts, e.g. B. the flange 27 of the bobbin 5 to anchor to the bottom 8.
  • the stand tabs 18, which stand on the bottom surface 19 and which are also embedded in the casting compound 22, can be formed on the coil body 5, in particular on the flange 27. This ensures a vibration-free posture of the magnet system.
  • the openings 21 are arranged in a side wall 9 and / or 10, they are arranged in such a way and / or the metal parts 11 are provided in such a stepped or oblique manner that the metal parts do not run through an opening 21.

Abstract

A leakproof electromagnetic relay in which a pourable sealing compound is introduced into the interior of the lower housing of the relay. A recess is formed in at least one sidewall of the housing through which the sealing compound is poured. The compound distributes itself equally on the bottom of the housing and flows into the separating points or gaps of the housing by capillary action. A cover closes the recess after the compound has been poured in. The invention permits the relay to be sealed in its upright position and further processed.

Description

Die Erfindung bezieht sich auf ein elektromagnetisches Relais gemäß dem Oberbegriff des Anspruchs 1.The invention relates to an electromagnetic relay according to the preamble of claim 1.

Derartige Relais werden zunehmend in sogenannter waschdichter Ausführung verlangt. Dies wird beispielsweise dadurch erreicht, daß der Deckelrand unten über die Bodenfläche übersteht und dieser Raum bei umgedrehten Relais ausgegossen wird. Zum besseren Verteilen der Vergußmasse ist es dabei z. B. aus der DE-A-2 851 329 und der DE-U-7 821 508 bekannt, die Bodenunterseite mit einem Netz von Rillen zu versehen, die zu den Trennstellen zwischen Gehäuseteilen sowie zwischen Gehäuseteilen und Auschlußkontakten führen. Durch Aufgeben einer vorbestimmten Menge Vergußmasse soll eine an allen Trennstellen, in die die Vergußmasse infolge Kapillarwirkung eindringt, dichte Verbindung geschaffen werden. Beim Vergießen von unten her kann es jedoch vorkommen, daß Vergußmasse durch eine zu große Öffnung nach innen läuft und das Relais dadurch unbrauchbar wird. Außerdem muß das Relais in dieser Stellung verharren, bis die Vergußmasse ausgehärtet ist.Such relays are increasingly required in a so-called wash-tight version. This is achieved, for example, in that the edge of the lid protrudes below the bottom surface and this space is poured out when the relays are turned over. For better distribution of the potting compound, it is z. B. from DE-A-2 851 329 and DE-U-7 821 508 known to provide the bottom underside with a network of grooves that lead to the separation points between housing parts and between housing parts and exclusion contacts. By applying a predetermined amount of potting compound, a tight connection is to be created at all separation points into which the potting compound penetrates due to capillary action. When potting from below, however, it can happen that the potting compound runs through an opening that is too large and the relay becomes unusable as a result. In addition, the relay must remain in this position until the sealing compound has hardened.

Gemäß dem aus der DE-A-3 230 243 bekannten Vorschlag kann ein Relais praktisch von innen her gefüllt werden, indem innen an einem Gehäuseteil geeignete Vorratskammern angeordnet sind, die mit Vergußmasse gefüllt werden. Anschließend wird ein Deckel oder eine Haube aufgebracht und das Relais in eine solche Lage geschwenkt, daß die Vergußmasse aus der Vorratskammer ausläuft und zu den abzudichtenden Stellen fließt. Die Füllung einer solchen Vorratskammer kann auch von außen durch eine Öffnung in der Gehäuseaußenseite vorgenommen werden. Die Einfüllöffnungen selbst werden dabei offenbar nicht verschlossen.According to the proposal known from DE-A-3 230 243, a relay can be filled practically from the inside by arranging suitable storage chambers on the inside of a housing part which are filled with potting compound. Then a lid or a hood is applied and the relay is pivoted into such a position that the casting compound runs out of the storage chamber and flows to the points to be sealed. Such a storage chamber can also be filled from the outside through an opening in the outside of the housing. The filling openings themselves are apparently not closed.

Weiterhin ist aus der DE-B-2 717 348 ein äußerer Vorratsraum bekannt. Dort ist bei einem schachtelartigen Gehäuse ein mit dem zwischen Grundkörper und Schutzhaube gebildeten Kapillarspalt verbundener Vorratsraum durch eine Ausnehmung, z. B. am Rand der Schutzhaube, gebildet. Hierdurch kann jedoch kein Vergießen innerer Dichtungsstellen etc. vorgenommen werden.Furthermore, an outer storage room is known from DE-B-2 717 348. There is in a box-like housing connected to the capillary gap formed between the base body and protective cover storage space through a recess, for. B. formed at the edge of the protective hood. In this way, however, no internal sealing points, etc. can be cast.

Aus der DE-A-2 622133 ist eine Abdichtung von Kapillarspalten durch in das Gehäuseinnere eingebrachte Vergußmasse bekannt. Dabei wird die Vergußmasse in die umgedrehte Schutzhaube gefüllt und der Grundkörper in umgedrehter Lage eingeschoben. Hierbei muß der Gehäuserand des Grundkörpers praktisch bis zur Deckelinnenseite hinaufragen und die Kontaktanschlüsse müssen von innen über den Gehäuserand nach außen zum Boden zurückgebogen werden.From DE-A-2 622133 a sealing of capillary gaps by potting compound introduced into the interior of the housing is known. The casting compound is filled into the inverted protective hood and the base body is inserted in the inverted position. Here, the housing edge of the base body has to protrude practically up to the inside of the cover and the contact connections have to be bent back from the inside over the housing edge to the outside.

Mit der vorliegenden Erfindung soll die Aufgabe gelöst werden, ein Relais in einfacher Weise waschdicht machen zu können, ohne daß das Relais beim Vergießen oder Aushärten in eine andere Lage geschwenkt werden muß und ohne daß die Grundkörperwand so hoch sein muß, daß sie bis zur Schutzhaube hinaufreicht. Weiterhin soll das Relais nach dem Vergießen leicht weiter handhabbar sein.With the present invention, the object is to be able to make a relay wash-proof in a simple manner, without the relay having to be pivoted into another position during casting or curing, and without the base body wall having to be so high that it reaches the protective hood reaches up. Furthermore, the relay should be easy to handle after potting.

Diese Aufgabe wird durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst. Durch diese Maßnahmen kann das Relais in seiner Normallage, also mit nach unten abstehenden Anschlüssen, vergossen werden. Dadurch besteht nicht mehr die Gefahr, daß Vergußmasse zum Kontaktsystem fließen kann. Weiterhin braucht der Deckelrand nicht überzustehen, so daß eine geringere Bauhöhe erreichbar ist.This object is achieved by the features specified in the characterizing part of claim 1. These measures allow the relay to be cast in its normal position, i.e. with the connections protruding downwards. As a result, there is no longer any risk that potting compound can flow to the contact system. Furthermore, the edge of the lid does not have to protrude, so that a lower overall height can be achieved.

Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben und nachfolgend anhand eines in der Zeichnung veranschaulichten Ausführungsbeispieles beschrieben. Dabei zeigen :

  • Fig. 1 eine perspektivische Ansicht eines erfindungsgemäßen Relais von unten,
  • Fig. 2 eine Ansicht gemäß dem Schnitt A-A der Fig. 3 und
  • Fig. 3 eine Seitenansicht im Schnitt.
Advantageous developments of the invention are specified in the subclaims and are described below with reference to an exemplary embodiment illustrated in the drawing. Show:
  • 1 is a perspective view of a relay according to the invention from below,
  • Fig. 2 is a view according to the section AA of FIGS. 3 and
  • Fig. 3 is a side view in section.

Das Miniaturrelais 1 weist ein im wesentlichen wannenartiges, aus zwei Gehäuseschalen 2, 3 und einem Flansch 4 eines Spulenkörpers 5 gebildetes, inneres Gehäuseteil 6 und eine Haube 7 auf, die das innere Gehäuseteil 6 etwa bis zum Boden 8 übergreift. Die beiden Gehäuseschalen 2, 3 besitzen im Querschnitt L-Form (siehe Fig. 2) und können zur Bildung eines geschlossenen Raumes auch einen oberen Deckenabschnitt besitzen, so daß sie im Querschnitt die Form eines auf einem Schenkel liegenden U bilden.The miniature relay 1 has an essentially trough-like inner housing part 6, which is formed from two housing shells 2, 3 and a flange 4 of a coil former 5, and a hood 7, which extends over the inner housing part 6 approximately to the bottom 8. The two housing shells 2, 3 have an L-shape in cross section (see FIG. 2) and can also have an upper ceiling section to form a closed space, so that they form the shape of a U lying on one leg in cross section.

In die Seitenwände 9, 10 des aus Kunststoff bestehenden Gehäuseteils 6 sind die Verbindungsteile 11 der Kontakte 12 mit den Anschlüssen 13 in an sich bekannter Weise eingeformt.In the side walls 9, 10 of the plastic housing part 6, the connecting parts 11 of the contacts 12 with the connections 13 are molded in a manner known per se.

Das innere Gehäuseteil 6 kann auch ein einziges Kunststoffteil sein oder es kann aus mehreren Teilen zusammengesetzt sein, beispielsweise aus zwei Seitenwänden 9, 10 und einem mittleren U-förmigen Teil.The inner housing part 6 can also be a single plastic part or it can be composed of several parts, for example of two side walls 9, 10 and a central U-shaped part.

Die einzelnen Gehäuseteile können durch die Haube 7 zusammengehalten sein oder vorher noch durch geeignete Maßnahmen verbunden sein, beispielsweise durch Stecken, Kleben, Schweißen mittels Ultraschall etc.The individual housing parts can be held together by the hood 7 or previously connected by suitable measures, for example by plugging, gluing, welding by means of ultrasound, etc.

Im inneren Gehäuseteil 6 ist das aus dem Spulenkörper 5, einer Wicklung 14, einem Magnetkern 15, einem mit diesem magnetisch und mechanisch fest verbundenen Magnetjoch 16 und einem Klappanker 17 bestehende Magnetsystem des Relais 1 untergebracht. Zweckmäßigerweise sind am Spulenkörper 5 Standlaschen 18 angeformt, mit denen er auf der inneren Bodenoberfläche 19 des Bodens 8 steht.In the inner housing part 6, the magnet system of the relay 1, which consists of the coil former 5, a winding 14, a magnetic core 15, a magnetically and mechanically fixed magnetic yoke 16 and a hinged armature 17, is accommodated. Expediently, stand tabs 18 are formed on the bobbin 5, with which it stands on the inner bottom surface 19 of the bottom 8.

Um ein waschdichtes Relais 1 zu erhalten, müssen die zwischen den einzelnen Bauteilen vorhandenen Stoßfugen 20 dicht verschlossen werden. Dies erfolgt von innen dadurch, daß in wenigstens einer Wand, insbesondere in einer der Seitenwände 9, 10, des inneren Gehäuseteils 6, zumindest eine Durchbrechung 21 vorgesehen ist, durch die von außen Vergußmasse 22 eingefüllt werden kann. Diese verläuft innen am Boden 8 des inneren Gehäuseteils 6 und läuft infolge Kapillarwirkung in die Stoßfugen 20 der relativ dicht aneinanderliegenden Gehäuseschalen 2, 3.In order to obtain a wash-tight relay 1, the butt joints 20 present between the individual components must be tightly closed. This takes place from the inside in that in at least one wall, in particular in one of the side walls 9, 10, of the inner housing part 6, at least one opening 21 is provided, through which potting compound 22 can be filled in from the outside. This runs on the inside of the bottom 8 of the inner housing part 6 and, due to capillary action, runs into the butt joints 20 of the relatively closely adjacent housing shells 2, 3.

In wenigstens einer Gehäuseschale 2, 3 und/ oder in dem Flansch 4 ist zumindest eine bis zur Bodenoberfläche 19 des innerere Gehäuseteiles 6 hinabreichende Öffnung 23 vorgesehen, durch die hindurch Vergußmasse 22 von innen nach außen fließen kann. Hierdurch kann nach Einfüllen der Vergußmasse 22 durch die Durchbrechung 21 hindurch und anschließendes Aufschieben der Haube 7, deren Haubenwände 24 die Durchbrechungen 21 im aufgeschobenen Zustand überdecken, die Vergußmasse 22 infolge Kapillarwirkung durch die Öffnungen 23 hindurch in die Stoßfugen 20 zwischen den Haubenwänden 24 und dem inneren Gehäusteil 6 laufen.In at least one housing shell 2, 3 and / or in the flange 4 there is at least one opening 23 which extends down to the bottom surface 19 of the inner housing part 6 and through which casting compound 22 can flow from the inside to the outside. As a result, after filling the potting compound 22 through the opening 21 and then pushing on the hood 7, the hood walls 24 of which cover the openings 21 in the pushed-on state, the potting compound 22 due to capillary action through the openings 23 into the butt joints 20 between the hood walls 24 and the inner housing part 6 run.

Durch die Kapillarwirkung an den Stoßfugen 20 kann keine Vergußmasse 22 nach unten herauslaufen oder heraustropfen.Due to the capillary action at the butt joints 20, no potting compound 22 can run out or drip out.

Die Öffnungen 23 können sich als Schlitz 25 von der Unterkante der Durchbrechung 21 aus nach unten bis zur Oberfläche 19 des Bodens 8 erstrecken oder die Öffnungen 23 können durch kleine Bohrungen 26 gebildet sein, die oberhalb des Bodens 8 angebracht sind, jedoch bis zur Bodenoberfläche 19 hinabreichen. Die Öffnungen 23 können am Umfang so verteilt werden, daß ein gleichmäßiges Verlaufen zu allen Trennstellen 20 hin in einer bestimmten Zeiteinheit erfolgen kann.The openings 23 can extend as a slot 25 from the lower edge of the opening 21 down to the surface 19 of the bottom 8 or the openings 23 can be formed by small bores 26 which are provided above the bottom 8 but up to the bottom surface 19 reach down. The openings 23 can be distributed around the circumference in such a way that a uniform course to all separation points 20 can take place in a certain time unit.

Als Vergußmasse 22 wird vorteilhaft eine solche gewählt, die bei Temperaturerhöhung eine niedrigere Viskosität aufweist. Hierdurch kann nach dem Eingießen derselben und dem Aufstecken der Haube 7 durch Erwärmung eine schnellere und gleichmäßigere Verteilung und ein gutes Verlaufen in den Stoßfugen 20 erreicht werden.As the potting compound 22, one is advantageously chosen which has a lower viscosity when the temperature rises. As a result, after pouring the same and attaching the hood 7 by heating, a faster and more uniform distribution and a smooth running in the butt joints 20 can be achieved.

Vorteilhaft kann das Vergießen von innen dazu benutzt werden, um innere Teile, z. B. den Flansch 27 des Spulenkörpers 5, am Boden 8 zu verankern. Beispielsweise können am Spulenkörper 5, insbesondere am Flansch 27, die Standlaschen 18 angeformt sein, die auf der Bodenoberfläche 19 stehen und die mit in die Vergußmasse 22 eingebettet sind. Hierdurch wird eine erschütterungsfreie Haltung des Magnetsystems gewährleistet.Potting from the inside can advantageously be used to remove internal parts, e.g. B. the flange 27 of the bobbin 5 to anchor to the bottom 8. For example, the stand tabs 18, which stand on the bottom surface 19 and which are also embedded in the casting compound 22, can be formed on the coil body 5, in particular on the flange 27. This ensures a vibration-free posture of the magnet system.

Bei Anordnung der Durchbrechungen 21 in einer Seitenwand 9 und/oder 10 sind diese derart angeordnet und/oder die Metallteile 11 sind derart stufenförmig oder schräg verlaufend vorgesehen, daß die Metallteile nicht durch eine Durchbrechung 21 verlaufen.When the openings 21 are arranged in a side wall 9 and / or 10, they are arranged in such a way and / or the metal parts 11 are provided in such a stepped or oblique manner that the metal parts do not run through an opening 21.

Claims (7)

1. Electromagnetic relay, in particular miniature relay, the housing of which consists of a single- or multi-sectional, substantially cup-like inner housing member (6) in which the magnet system and the contact system and the connections to the terminal pins are accommodated, and of a cover (7) which receives the inner housing member (6) and whose terminating edges extend at least down to the bottom of the inner housing member (6), characterized in that in at least one side wall (9, 10) of the cup-like inner housing member (6) above the bottom surface (19) there is provided at least one perforation (21) for introducing a pourable sealing compound (22) into the interior of the cup-like housing member (6), that in at least one side wall (9, 10), preferably in the area of the perforation(s) (21), there is provided at least one aperture (23) which extends from the height of the lower edge of the perforation(s) (21) or, beginning below this, extends down to the inner bottom surface (19) of the inner housing member (6) in such a way that the perforation(s) (21) and the aperture(s) (23) are covered by the cover (7) after this has been pushed on, but nevertheless the inserted sealing compound (22) can flow, owing to capillary action, through the aperture(s) (23) into the separating gaps (20) between the cover walls (24) and the inner housing part (6).
2. A relay as claimed in Claim 1, characterized in that the inner housing member (6) consists of two parts of L-shaped cross section (housing shells 2, 3).
3. A relay as claimed in Claim 1, characterized in that said inner housing member (6) consists of two side walls (9, 10) and of a U-shaped centre portion.
4. A relay as claimed in any one of Claims 1 to 3, characterized in that parts of the magnet system (5, 14, 15, 16, 17), especially the lower parts (28) (standing surfaces 18) of the flanges (4, 27) of the coil form (5), are embedded in said pourable sealing compound (22).
5. A relay as claimed in any one of Claims 1 to 4, characterized in that the joints (metal parts 11) between the terminals (13) and the contact system (12) are moulded into the side walls (9, 10).
6. A method of manufacturing a relay having the features as claimed in any one of Claims 1 to 5, characterized in that the individual elements (2, 3 ; 9, 10) of the inner housing member (6) consisting of several parts are assembled with or plugged in to all contact systems (12) and the magnet system (5, 14, 15, 16, 17), that after that said cover (7) is placed in position from above to such an extent that said perforation(s) (21) is/are not yet covered up, that then a self-curing or hardening pourable sealing compound (22) is inserted through said one or more perforations (21), with said cover (7) being positioned completely thereupon, so as to cover up said one or more perforations (21), the said pourable sealing compound (22), after it has been distributed, including through the aperture(s) (23), into all separating gaps (20) owing to the capillary effect thereof, being cured or hardened.
7. A method as claimed in Claim 6, characterized in that a pourable sealing compound (22) is used which, upon heating, has a lower viscosity, and that the capillary distribution is caused or improved by a heat treatment.
EP84102165A 1983-03-12 1984-03-01 Electromagnetic relay Expired EP0118843B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84102165T ATE40019T1 (en) 1983-03-12 1984-03-01 ELECTROMAGNETIC RELAY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3308821A DE3308821C2 (en) 1983-03-12 1983-03-12 Electromagnetic relay
DE3308821 1983-03-12

Publications (3)

Publication Number Publication Date
EP0118843A2 EP0118843A2 (en) 1984-09-19
EP0118843A3 EP0118843A3 (en) 1985-01-30
EP0118843B1 true EP0118843B1 (en) 1989-01-11

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ID=6193268

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Application Number Title Priority Date Filing Date
EP84102165A Expired EP0118843B1 (en) 1983-03-12 1984-03-01 Electromagnetic relay

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US (1) US4507633A (en)
EP (1) EP0118843B1 (en)
JP (1) JPS59169019A (en)
AT (1) ATE40019T1 (en)
AU (1) AU567327B2 (en)
CA (1) CA1227825A (en)
DE (1) DE3308821C2 (en)

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DE3230243C2 (en) * 1981-08-26 1991-01-24 Siemens AG, 1000 Berlin und 8000 München Housing for an electrical component

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2213146B2 (en) * 1972-03-17 1977-05-12 HOlH 5(M)2 RELAY
EP0110098A1 (en) * 1982-10-22 1984-06-13 International Standard Electric Corporation Electromagnetic relay

Also Published As

Publication number Publication date
DE3308821A1 (en) 1984-09-20
ATE40019T1 (en) 1989-01-15
AU2530584A (en) 1984-09-13
EP0118843A2 (en) 1984-09-19
DE3308821C2 (en) 1985-03-07
AU567327B2 (en) 1987-11-19
US4507633A (en) 1985-03-26
JPS59169019A (en) 1984-09-22
EP0118843A3 (en) 1985-01-30
CA1227825A (en) 1987-10-06

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