EP0038431B1 - Functional plug connector - Google Patents

Functional plug connector Download PDF

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Publication number
EP0038431B1
EP0038431B1 EP81102291A EP81102291A EP0038431B1 EP 0038431 B1 EP0038431 B1 EP 0038431B1 EP 81102291 A EP81102291 A EP 81102291A EP 81102291 A EP81102291 A EP 81102291A EP 0038431 B1 EP0038431 B1 EP 0038431B1
Authority
EP
European Patent Office
Prior art keywords
plug
bushing
contact
spring contacts
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
Application number
EP81102291A
Other languages
German (de)
French (fr)
Other versions
EP0038431A3 (en
EP0038431A2 (en
Inventor
Werner Dipl.-Ing. Kewitz
Georg Olbrich
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.)
Albert Ackermann GmbH and Co KG
Original Assignee
Albert Ackermann GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Albert Ackermann GmbH and Co KG filed Critical Albert Ackermann GmbH and Co KG
Priority to AT81102291T priority Critical patent/ATE10887T1/en
Publication of EP0038431A2 publication Critical patent/EP0038431A2/en
Publication of EP0038431A3 publication Critical patent/EP0038431A3/en
Application granted granted Critical
Publication of EP0038431B1 publication Critical patent/EP0038431B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H01R13/7031—Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity
    • H01R13/7034—Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity the terminals being in direct electric contact separated by double sided connecting element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening

Definitions

  • the invention relates to a functional connector, in which on the outside of a plug base insertable contact tongues each cooperate with, for example, pairs of spring contacts arranged insulated on two opposite inner sides of the socket, which in their upper part of the socket facing the plug for contacting the plug contact tongues bulbous, resilient and then provided on the bulbous, resilient area with semicircular contact bulges which are bent further towards the center of the socket housing and which are forcibly opened when plugged in, the length of the plug base being dimensioned such that its contact tongues are still when the plug is inserted end before the contact bulges.
  • plug-in connections of other types in which, similar to the type mentioned at the beginning, the contact tongues opposite in a socket have two mutually directed bulges, of which the bulge pointing away from the direction of insertion makes the contact, while the second , the bulge facing the plug to be inserted only serves to provide a second contact point when inserting a plug contact.
  • the contact area is subject to wear when plugged in frequently and that the resilient bulges causing the contact can tire in their spring action, which can lead to inadequate contacting after prolonged use.
  • the invention is therefore based on the object of designing a functional plug connector of the type mentioned at the outset such that, when the plug is pulled out, the opening and closing functions are reliably and reliably performed by the spring contact elements.
  • the invention consists in that the respectively opposite spring contacts are held in chambers of the socket housing which are delimited by struts and which correspond to their width, that the contact bulges run approximately parallel to the socket bottom and subsequent bends pointing in the direction of the soldering lugs, which cause a resilient support on the vertical legs of the spring contacts for the purpose of increasing the counterpressure for the plug contact in the bulbous area, and that a stop for these kinks is formed by the side walls of a gap which is in the area of the connector facing away from the connector Socket housing is arranged between this and the socket carrier.
  • This design has the advantage that, depending on the choice of the width of the gap, the kink comes to rest, on the side that prevents the contact bulges from jamming, or that they are arranged so that these contact bulges lie against one another.
  • the respective outside of the gap simultaneously takes over the stop function for increasing the contact pressure when the plug is inserted, which is provided in the known types by the application of the outer ends of the contact tongues (US-A-4087151) to part of the contact tongues themselves.
  • the invention opens up the possibility, however, of designing a basic version of a functional connector, which has the advantages that the contact areas cannot be fatigued by the plug base inserted between them, for an opening or closing function.
  • Claim 2 opens up a simple possibility of manufacturing the new connector
  • Claim 3 gives the possibility to adapt the functional connector to any desired application. It depends on the width of the gap whether, when the plug is pulled out, a normally open or normally closed function is to be taken over by the correspondingly opposite spring contacts. If the gap is made with a small width, the downward kink at the base of the spring contacts prevents the two opposing shapes from touching at the base of the spring contacts when the plug is pulled out. As a result, a normally open function is realized; the gap width can be selected when manufacturing the base support.
  • the base cover can be used for all variations are the same.
  • claims 7 and 8 are also advantageous for the assembly of the plug.
  • This configuration can be achieved, for example, that different base supports, which differ in the formation of different gap widths for the individual spring contacts, can be inserted into the same base cover, so that they can be held there in a simple manner by means of the interaction of the groove with a projection running in the region of the foot of the base cover via a latching connection.
  • the locking lug element provided according to claim 8 has the advantage that the snap-in function is carried out in a simple manner separately from the spring contacts, so that the higher forces arising during the snap-in action cannot cause any deformation of the spring contacts.
  • a socket 1 hereinafter referred to as base 1, of a connector made of insulating plastic, which has a base cover 3 and a base carrier 4 which can be inserted therein and on which the spring contacts 7 are held.
  • base 1 a socket 1
  • base 1 a connector made of insulating plastic
  • contact tongues 18 are shown, which are embedded in the foot in a manner not shown, which produce the desired contact with the spring contacts after inserting the plug 2 into the base 1.
  • This contact is made in the upper region 8 of the spring contacts 7.
  • the length of the foot 2a of the plug 2 is dimensioned such that the contact tongues end above the semicircular contact shapes 13 located in the lower region of the spring contacts 7 when the plug is inserted.
  • the spring contacts 7 In order to obtain a secure fit of the spring contacts 7, they are placed over a web 6 which is introduced in the upper region of chambers 5 running in the longitudinal direction and corresponding to the width of the spring contacts.
  • the chambers are formed between the struts 16 and thus have the effect that a lateral displacement can be excluded.
  • the rear chamber wall forms with the base carrier 4 a circumferential gap 14 in the lower region at the height of the bend 10 corresponding to the soldering lug 9 and interrupted by the foot of the struts 16a. The width of this gap 14 depends on whether there are opposing ones Spring contacts 7 should assume opening or closing functions.
  • the kink 10 Due to the abutment of the kink 10 on the edge lying in the direction of the center of the base, the area into which the shapes of the spring contacts protrude into the center of the base is limited. Therefore, if the gap 14 is made small, the kink 10 contacts the inner edge of the gap more quickly and therefore cannot make contact with the opposite spring contact.
  • a groove 21 is provided which, after the base cover 3 has been slipped over the base support 4, engages with a projection 22 extending in the region of the base of the base cover 3, thereby ensuring that the base support and thus the spring contacts in the base cover are firmly seated guaranteed.
  • a catch recess 17 On one side of the plug base 2a there is a catch recess 17 which, after the plug 2 has been inserted into the base 1, causes a catch with a catch 11 provided in the base and seated on a resilient catch element 12.
  • the base 1 has a recess extension 15 on one side into which a corresponding design provided on the plug can engage.
  • This recess extension 15 allows a non-interchangeable plug and socket to be plugged together.
  • the contact tongues 18 have a bent end 20 which engages in slots 19 and thus produces a tight fit of the contact tongues.
  • the width B of the plug base corresponds to the width of the opening 23 in the base through which the base 2a of the plug 2 is inserted. If a plug, as shown in FIG. 2 a, is inserted into a base, as shown in FIG. 2 a, this plug connection system can perform the functions of two-sided contacting plus opening function, prematurely. The two-sided contacting takes place via the non-interconnected contact tongues 18, which each make contact with the spring contacts 7.
  • the make function is established when the plug is pulled out.
  • a base carrier in connection with a plug base S3 can therefore take over the functions of a double, two-sided contacting plus make function. If such a base is connected to a plug base according to S4, this system takes over two-way, one-sided contacting.
  • FIG. 3 shows how simple, one-sided contacting is made possible with a connector according to the invention. From Fig. 3b, where the plug is inserted into the base, it can be seen how the kink 10 bears on the rear part of the spring contact 7 and thereby causes a support which makes contact with the bulbous part 8 of the spring contact 7 with the contact tongue 18 supports. Since the foot 2a of the plug 2 does not penetrate into the area of the formation 13, it is protected against mechanical deformation and can thus, in particular, perform the opening function reliably and safely.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Cable Accessories (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

1. An operational plug-in connector in which, contact tongues (18) provided on the outer side of a plug base (2a) insertable into a bushing (1) cooperate in each case with spring contacts (7) disposed in insulated manner e.g. pairwise on two opposite inside faces of the bushing (1) which contacts, in their upper area of the bushing (1) facing the plug (2), are constructed resiliently and in the manner of a bulge to contact with the plug contact tongues (18) and subsequently, on the area (8) constructed resiliently as a bulge, are provided with semi-circular contact camber (13) bent out further in the direction of the middle of the bushing housing, said chambers being forcibly opened in the plug-in condition, the length of the plug base (2a) being calculated in such a manner that its contact tongues (18) when the plug (2) is inserted end just before the contact chambers (13), characterised in that the spring contacts (7) oppositely placed in each instance are held in chambers of the bushing housing (3) delimited by stays (16) ehich correspond to their width, in that the contact chambers (13) extend into transversal elements (10a) directed substantially parallel with the bottom of the bushing and into connecting bends (10) pointing in the direction of the soldering lugs (9) which bends effect a resilient supporting on the vertical arms of the spring contacts (7) for the purpose of increasing the counter-pressure for the plug contacting in the area (8) constructed resiliently as a bulge, and in that an abutment for these bends (10) is formed by the side walls of a gap (14) which is disposed in the area of the bushing housing (3) facing away from the plug between said housing and the bushing holder (4).

Description

Die Erfindung betrifft einen Funktionssteckverbinder, bei welchem auf der Außenseite eines in eine Buchse einführbaren Steckerfußes vorgesehene Kontaktzungen jeweils mit beispielsweise paarweise auf zwei gegenüberliegenden Innenseiten der Buchse isoliert angeordneten Federkontakten zusammenwirken, die in ihrem oberen, dem Stecker zugewandten Bereich der Buchse zur Kontaktierung mit den Steckerkontaktzungen bauchig federnd ausgebildet und anschließend an den bauchig federnd ausgebildeten Bereich mit weiter in Richtung zur Mitte des Buchsengehäuse ausgebogenen, halbkreisförmigen Kontaktauswölbungen versehen sind, die im gesteckten Zustand zwangsweise geöffnet werden, wobei die Länge des Steckerfußes so bemessen ist, daß dessen Kontaktzungen bei eingestecktem Stecker noch vor den Kontaktauswölbungen enden.The invention relates to a functional connector, in which on the outside of a plug base insertable contact tongues each cooperate with, for example, pairs of spring contacts arranged insulated on two opposite inner sides of the socket, which in their upper part of the socket facing the plug for contacting the plug contact tongues bulbous, resilient and then provided on the bulbous, resilient area with semicircular contact bulges which are bent further towards the center of the socket housing and which are forcibly opened when plugged in, the length of the plug base being dimensioned such that its contact tongues are still when the plug is inserted end before the contact bulges.

Funktionssteckverbinder dieser oder ähnlicher Bauart sind bekannt (DE-B-20 09 378). Bei diesen Bauarten ist nachteilig, daß sie sich ausschließlich für Steckverbindungen einsetzen lassen, bei denen im nicht gesteckten Zustand ein Stromkreis über die beiden Kontaktfederstreifen verläuft. Es gibt jedoch Einsatzfälle, wo im nicht gesteckten Zustand der Stromkreis getrennt sein soll. Die bekannten Bauarten, die an sich den Vorteil aufweisen, daß die eigentlichen Kontaktausformungen keinem Verschleiß durch die zwischen ihnen hindurchgeschobene Steckerkontakte unterliegen, lassen jedoch einen solchen Einsatz nicht zu.Functional connectors of this or a similar type are known (DE-B-20 09 378). A disadvantage of these designs is that they can only be used for plug connections in which a circuit runs over the two contact spring strips when not plugged in. However, there are cases where the circuit should be disconnected when not plugged in. However, the known types, which have the advantage that the actual contact formations are not subject to wear due to the plug contacts pushed between them, do not permit such use.

Bekannt sind auch Steckverbindungen anderer Bauarten (US-A-4087151), bei denen ähnlich wie bei der eingangs genannten Bauart die in einer Buchse gegenüberliegenden Kontaktzungen zwei gegeneinander gerichtete Ausbauchungen aufweisen, von denen die von der Einsteckrichtung wegweisende Ausbauchung den Kontakt herstellt, während die zweite, dem einzuführenden Stecker zugewandte Ausbauchung nur dazu dient, bei dem Einschieben eines Steckkontaktes für eine zweite Kontaktstelle zu sorgen. Bei solchen Bauarten ist nachteilig, daß der Kontaktbereich bei häufigem Stecken einem Verschleiß unterliegt und daß die den Kontakt bewirkenden federnden Ausbauchungen in ihrer Federwirkung ermüden können, was nach längerem Gebrauch zu einer unzureichenden Kontaktierung führen kann.Also known are plug-in connections of other types (US-A-4087151), in which, similar to the type mentioned at the beginning, the contact tongues opposite in a socket have two mutually directed bulges, of which the bulge pointing away from the direction of insertion makes the contact, while the second , the bulge facing the plug to be inserted only serves to provide a second contact point when inserting a plug contact. In such designs, it is disadvantageous that the contact area is subject to wear when plugged in frequently and that the resilient bulges causing the contact can tire in their spring action, which can lead to inadequate contacting after prolonged use.

Das gilt auch für die andere ähnliche Bauarten (DE-A-28 09 830 und US-A-36 46 504), wo jeweils der Fuß eines Steckers durch die elastisch gegeneinander gedrückten Kontaktausbauchungen durchgeschoben werden muß, wenn eine Kontaktierung erreicht werden soll. Auch solche Bauarten sind nicht ohne weiteres für einen Einsatz vorsehbar, bei dem im nicht gesteckten Zustand kein Kontakt zwischen beiden Kontaktzungen der Buchse besteht.This also applies to the other similar types (DE-A-28 09 830 and US-A-36 46 504), where each foot of a plug must be pushed through the elastically pressed contact bulges if contacting is to be achieved. Even such types are not readily available for use in which there is no contact between the two contact tongues of the socket when not plugged in.

Die Erfindung liegt daher die Aufgabe zugrunde, einen Funktionssteckverbinder der eingangs genannten Art so auszubilden, daß wahlweise bei herausgezogenem Stecker die Öffner-und Schließerfunktionen von den Federkontaktelementen sicher und zuverlässig wahrgenommen werden.The invention is therefore based on the object of designing a functional plug connector of the type mentioned at the outset such that, when the plug is pulled out, the opening and closing functions are reliably and reliably performed by the spring contact elements.

Zur Lösung dieser Aufgabe besteht die Erfindung darin, daß die jeweils gegenüberliegenden Federkontakte in durch Verstrebungen abgegrenzten Kammern des Buchsengehäuses, die ihrer Breite entsprechen, gehalten sind, daß die Kontaktauswölbungen in etwa parallel zum Buchsenboden verlaufende Querteile und anschließende, in Richtung der Lötfahnen weisende Abknickungen, die eine federnde Abstützung an den vertikalen Schenkeln der Federkontakte zum Zweck der Gegendruckerhöhung für die Steckerkontaktierung in dem bauchig federnd ausgebildeten Bereich bewirken, übergehen, und daß ein Anschlag für diese Abknickungen von den Seitenwänden eines Spaltes gebildet wird, der in dem vom Stecker abgewandten Bereich des Buchsengehäuses zwischen diesem und dem Buchsenträger angeordnet ist.To achieve this object, the invention consists in that the respectively opposite spring contacts are held in chambers of the socket housing which are delimited by struts and which correspond to their width, that the contact bulges run approximately parallel to the socket bottom and subsequent bends pointing in the direction of the soldering lugs, which cause a resilient support on the vertical legs of the spring contacts for the purpose of increasing the counterpressure for the plug contact in the bulbous area, and that a stop for these kinks is formed by the side walls of a gap which is in the area of the connector facing away from the connector Socket housing is arranged between this and the socket carrier.

Diese Ausbildung weist den Vorteil auf, daß je nach Wahl der Breite des Spaltes die Abknickung zur Anlage kommt, und zwar auf der Seite, die ein Aneinanderlegen der Kontaktauswölbungen verhindert, oder daß sie so angeordnet sind, daß diese Kontaktauswölbungen aneinanderliegen. Die jeweilige Außenseite des Spaltes übernimmt gleichzeitig die Anschlagfunktion für die Kontaktdruckerhöhung bei Einführung des Steckers, die an sich bei den bekannten Bauarten durch das Anlegen der äußeren Enden der Kontaktzungen (US-A-4087151) an einem Teil der Kontaktzungen selbst vorgesehen ist.This design has the advantage that, depending on the choice of the width of the gap, the kink comes to rest, on the side that prevents the contact bulges from jamming, or that they are arranged so that these contact bulges lie against one another. The respective outside of the gap simultaneously takes over the stop function for increasing the contact pressure when the plug is inserted, which is provided in the known types by the application of the outer ends of the contact tongues (US-A-4087151) to part of the contact tongues themselves.

Die Erfindung eröffnet aber die Möglichkeit, eine Grundausführung eines Funktionssteckverbinders, welche die Vorteile aufweist, daß die Kontaktbereiche nicht durch den zwischen ihnen durchgesteckten Steckerfuß ermüdet werden können, wahlweise für eine Öffner- oder Schließerfunktion auszulegen.The invention opens up the possibility, however, of designing a basic version of a functional connector, which has the advantages that the contact areas cannot be fatigued by the plug base inserted between them, for an opening or closing function.

Vorteilhafte Weiterbildungen ergeben sich aus den abhängigen Ansprüchen.Advantageous further developments result from the dependent claims.

Anspruch 2 eröffnet eine einfache Möglichkeit der Herstellung des neuen Steckverbinders ;Claim 2 opens up a simple possibility of manufacturing the new connector;

Anspruch 3 gibt die Möglichkeit, den Funktionssteckverbinder jedem gewünschten Anwendungsfall anzupassen. Von der Breite des Spaltes hängt es ab, ob bei herausgezogenem Stecker von den sich korrespondierend gegenüberliegenden Federkontakten eine Schließer-oder eine Öffnerfunktion übernommen werden soll. Wird der Spalt mit geringer Breite hergestellt, so verhindert die nach unten weisende Abknickung am Fuß der Federkontakte, daß sich die beiden sich gegenüberliegenden Ausformungen am Fuß der Federkontakte bei herausgezogenem Stecker berühren. Hierdurch wird eine Schließerfunktion rsalisiert ; die Spaltbreite kann bei der Herstellung des Sockelträgers gewählt werden. Die Sockelabdeckung kann für alle Variationen dieselbe sein.Claim 3 gives the possibility to adapt the functional connector to any desired application. It depends on the width of the gap whether, when the plug is pulled out, a normally open or normally closed function is to be taken over by the correspondingly opposite spring contacts. If the gap is made with a small width, the downward kink at the base of the spring contacts prevents the two opposing shapes from touching at the base of the spring contacts when the plug is pulled out. As a result, a normally open function is realized; the gap width can be selected when manufacturing the base support. The base cover can be used for all variations are the same.

Baulich einfach ist es, wenn gemäß Anspruch 4 die Federkontakte über Querstege gelegt sind, weil dann beim Aufschieben der Sockelabdeckung schon die gewünschte Befestigung der Federkontakte erreicht wird.It is structurally simple if, according to claim 4, the spring contacts are placed over crosspieces, because then when the base cover is slid on, the desired fastening of the spring contacts is achieved.

Verbessert kann dies durch die Merkmale des Anspruchs 5 werden, weil dann die Federkontakte nach dem Aufsetzen der Sockelabdeckung verklemmt werden können.This can be improved by the features of claim 5, because then the spring contacts can be jammed after putting on the base cover.

Für die Montage des Steckers vorteilhaft sind auch die Merkmale des Anspruches 7 und 8. Durch diese Ausgestaltung kann beispielsweise erreicht werden, daß verschiedene Sockelträger, die sich durch die Ausbildung unterschiedlicher Spaltbreiten für die einzelnen Federkontakte unterscheiden, in dieselbe Sockelabdeckung eingeschoben werden können, so daß sie dort in einfacher Weise über das Zusammenwirken der Nut mit einem im Bereich des Fußes der Sockelabdeckung verlaufenden Vorsprung über eine Rastverbindung gehalten werden können. Das nach Anspruch 8 vorgesehene Rastnasenelement bringt den Vorteil mit sich, daß die Einrastfunktion in einfacher Weise von den Federkontakten getrennt vorgenommen wird, so daß die beim Einrasten entstehenden höheren Kräfte keine Verformung der Federkontakte hervorrufen können.The features of claims 7 and 8 are also advantageous for the assembly of the plug. This configuration can be achieved, for example, that different base supports, which differ in the formation of different gap widths for the individual spring contacts, can be inserted into the same base cover, so that they can be held there in a simple manner by means of the interaction of the groove with a projection running in the region of the foot of the base cover via a latching connection. The locking lug element provided according to claim 8 has the advantage that the snap-in function is carried out in a simple manner separately from the spring contacts, so that the higher forces arising during the snap-in action cannot cause any deformation of the spring contacts.

Weitere Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung der in den Zeichnungen dargestellten Ausführungsformen. Es zeigen :

  • Figur 1 einen erfindungsgemäßen Stecker mit Sockel im teilweisen perspektivischen Querschnitt,
  • Figur 2a einen Querschnitt durch einen Sockel mit zwei Steckkontaktvarianten,
  • Figur 2b einen Querschnitt durch einen Sockel mit zwei anderen Steckkontaktvarianten,
  • Figur 3a einen Querschnitt durch einen Sockel mit einer Steckkontaktvariante in herausgezogener Stellung und
  • Figur 3b einen Querschnitt durch einen Sockel mit einer Steckkontaktvariante in gesteckter Stellung.
Further advantages of the invention result from the following description of the embodiments shown in the drawings. Show it :
  • FIG. 1 shows a plug according to the invention with a base in a partial perspective cross section,
  • FIG. 2a shows a cross section through a base with two plug contact variants,
  • FIG. 2b shows a cross section through a base with two other plug contact variants,
  • Figure 3a shows a cross section through a base with a plug contact variant in the withdrawn position and
  • Figure 3b shows a cross section through a base with a plug contact variant in the inserted position.

In der Fig. 1 ist eine Buchse 1, im weiteren Sockel 1 genannt, eines aus isolierendem Kunststoff hergestellten Steckverbinders zu erkennen, welcher eine Sockelabdeckung 3 und einen in diese einschiebbaren Sockelträger 4 aufweist, auf dem die Federkontakte 7 gehalten werden. Am Fuße des Steckers 2 sind Kontaktzungen 18, die in nicht näher dargestellter Weise in den Fuß eingebettet sind, gezeigt, die mit den Federkontakten nach Einbringen des Steckers 2 in den Sockel 1 die gewünschte Kontaktierung herstellen. Diese Kontaktierung erfolgt im oberen Bereich 8 der Federkontakte 7. Die Länge des Fußes 2a des Steckers 2 ist so bemessen, daß die Kontaktzungen bei eingestecktem Stecker oberhalb der sich im unteren Bereich der Federkontakte 7 befindenden halbkreisförmigen Kontaktausformungen 13 enden. Hierdurch werden diese Teile der Federkontakte 7 von einer mechanischen Verformung durch das Einbringen des Steckers verschont und gewährleisten so bei herausgezogenem Stecker sichere Öffnungs- und Schließfunktionen. An diese bogenförmige Ausformung 13 schließt sich ein parallel zum Sockelboden verlaufender Querteil 10a an, der in einer in Richtung der Lötfahne 9 weisende Abknickung 10 endet. Wird nun der Stecker in den Sockel eingeschoben, so legt sich durch das Einschieben bedingt die Abknickung 10 des Federkontaktes 7 am rückwärtigen Teil dieses Federkontaktes an und bewirkt dadurch eine Druckerhöhung zwischen den Kontaktzungen 18 und dem bauchigen Teil des Federkontaktes 8, wodurch die Kontaktierung sicher und auch bei eventuell nachlassenden Federkräften zuverlässig erfolgen kann.1 shows a socket 1, hereinafter referred to as base 1, of a connector made of insulating plastic, which has a base cover 3 and a base carrier 4 which can be inserted therein and on which the spring contacts 7 are held. At the foot of the plug 2, contact tongues 18 are shown, which are embedded in the foot in a manner not shown, which produce the desired contact with the spring contacts after inserting the plug 2 into the base 1. This contact is made in the upper region 8 of the spring contacts 7. The length of the foot 2a of the plug 2 is dimensioned such that the contact tongues end above the semicircular contact shapes 13 located in the lower region of the spring contacts 7 when the plug is inserted. As a result, these parts of the spring contacts 7 are spared mechanical deformation by inserting the plug and thus ensure safe opening and closing functions when the plug is pulled out. This arcuate shape 13 is followed by a transverse part 10a running parallel to the base base, which ends in a bend 10 pointing in the direction of the soldering lug 9. If the plug is now inserted into the base, due to the insertion, the kink 10 of the spring contact 7 is placed on the rear part of this spring contact and thereby causes an increase in pressure between the contact tongues 18 and the bulbous part of the spring contact 8, which makes the contact safe and can also take place reliably with possibly decreasing spring forces.

Um einen sicheren Sitz der Federkontakte 7 zu erhalten, werden diese über einen Steg 6 gelegt, der im oberen Bereich von in Längsrichtung verlaufenden, der Breite der Federkontakte entsprechenden Kammern 5 eingebracht ist. Die Kammern werden zwischen den Verstrebungen 16 gebildet und bewirken somit, daß eine seitliche Verschiebung ausgeschlossen werden kann. Die rückwärtige Kammerwand bildet mit dem Sockelträger 4 einen im unteren Bereich in der Höhe der in Richtung der Lötfahne 9 weisenden Abknickung 10 entsprechenden, vom Fuß der Verstrebungen 16a unterbrochenen, umlaufenden Spalt 14. Von der Breite dieses Spaltes 14 hängt es ab, ob sich gegenüberliegende Federkontakte 7 Öffnung- oder Schließfunktionen einnehmen sollen. Durch das Anliegen der Abknickung 10 an der in Richtung der Sockelmitte liegenden Kante wird der Bereich, in den die Ausformungen der Federkontakte in die Sockelmitte hineinragen, begrenzt. Wird daher der Spalt 14 klein ausgebildet, so legt sicht die Abknickung 10 schneller an der innenliegenden Kante des Spaltes an und kann daher keine Kontaktierung mit dem gegenüberliegenden Federkontakt eingehen.In order to obtain a secure fit of the spring contacts 7, they are placed over a web 6 which is introduced in the upper region of chambers 5 running in the longitudinal direction and corresponding to the width of the spring contacts. The chambers are formed between the struts 16 and thus have the effect that a lateral displacement can be excluded. The rear chamber wall forms with the base carrier 4 a circumferential gap 14 in the lower region at the height of the bend 10 corresponding to the soldering lug 9 and interrupted by the foot of the struts 16a. The width of this gap 14 depends on whether there are opposing ones Spring contacts 7 should assume opening or closing functions. Due to the abutment of the kink 10 on the edge lying in the direction of the center of the base, the area into which the shapes of the spring contacts protrude into the center of the base is limited. Therefore, if the gap 14 is made small, the kink 10 contacts the inner edge of the gap more quickly and therefore cannot make contact with the opposite spring contact.

An einer Seite des Sockelträgers 4 ist eine Nut 21 vorgesehen, die nach dem Überstülpen der Sockelabdeckung 3 über den Sockelträger 4 mit einem im Bereich des Fußes der Sockelabdeckung 3 verlaufenden Vorsprung 22 einrastet und dadurch einen festen Sitz des Sockelträgers und somit der Federkontakte in der Sockelabdeckung garantiert.On one side of the base support 4, a groove 21 is provided which, after the base cover 3 has been slipped over the base support 4, engages with a projection 22 extending in the region of the base of the base cover 3, thereby ensuring that the base support and thus the spring contacts in the base cover are firmly seated guaranteed.

An einer Seite des Steckerfußes 2a ist eine Rastaussparung 17 vorgesehen, die nach dem Einschieben des Steckers 2 in den Sockel 1 ein Verrasten mit einer im Sockel vorgesehenen Rastnase 11, die auf einem federnden Rastnasenelement 12 sitzt, bewirkt.On one side of the plug base 2a there is a catch recess 17 which, after the plug 2 has been inserted into the base 1, causes a catch with a catch 11 provided in the base and seated on a resilient catch element 12.

In an sich bekannter Weise weist der Sockel 1 an einer Seite eine Ausnehmungserweiterung 15 auf, in die eine am Stecker vorgesehene korrespondierende Ausbildung eingreifen kann. Diese Ausnehmungserweiterung 15 erlaubt ein nicht verwechselbares Zusammenstecken von Stecker und Sockel.In a manner known per se, the base 1 has a recess extension 15 on one side into which a corresponding design provided on the plug can engage. This recess extension 15 allows a non-interchangeable plug and socket to be plugged together.

Aus dem in Fig. 2 gezeigten Querschnitt durch den Sockel 1 und den Fuß 2a des Steckers 2 ist zu erkennen, daß die Kontaktzungen 18 ein gebogenes Ende 20 aufweisen, welches in Schlitze 19 eingreift und so einen festen Sitz der Kontaktzungen herstellt. Die Breite B des Steckerfußes entspricht der Breite der Öffnung 23 im Sockel, durch welche der Fuß 2a des Steckers 2 eingesteckt wird. Wird in einen, wie in Fig. 2a dargestellten Sockel ein Stecker in der Form, wie sie dem Fall S1 entspricht, eingesteckt, so kann dieses Steckverbindungssystem die Funktionen eines zweimal einseitigen Kontaktierens plus Öffnerfunktion, voreilend übernehmen. Das zweimal einseitige Kontaktieren erfolgt über die nicht miteinander verbundenen Kontaktzungen 18, die jede für sich den Kontakt mit den Federkontakten 7 herstellen. Beim Herausziehen des Fußes 2a legen sich die gegenüberliegenden Federkontakte 7 mit ihren Ausformungen wieder aneinander an, da der Spalt 14 so gewählt ist, daß eine Kontaktierung der Ausformungen 13 vorher erfolgt, bevor die Abknickung 10 am innenliegenden Rand des Spaltes 24 anliegt. Über die in Richtung der Sockelmitte weisende Federkraft wird dann die Öffnerfunktion wahrgenommen. Es kann aber auch gewünscht sein, daß nur ein einseitiges Kontaktieren plus einer Öffnerfunktion von dem Steckverbinder erfüllt werden soll. In diesem Falle wird ein wie in Fig. 2a dargestellter Sockel mit einem gemäß S2 aufgebauten Steckerfuß zusammengebracht. Weitere Varianten ergeben sich aus den Fig. 2b, 3a und 3b, wobei bei dem in Fig. 2b dargestellten Sockelträger der Spalt 14 so schmal ausgebildet ist, daß die Abknickungen 10 an den Innenkanten 24 des Spaltes 14 anliegen, bevor ein gegenseitiges Berühren ihrer Ausformungen 13 stattfindet. In diesem Falle wird also bei herausgezogenem Stecker die Schließerfunktion hergestellt. Ein solcher Sockelträger in Verbindung mit einem Steckerfuß S3 kann daher die Funktionen eines doppelten, zweiseitigen Kontaktierens plus Schließerfunktion übernehmen. Wird ein solcher Sockel mit einem Steckerfuß gemäß S4 in Verbindung gebracht, so übernimmt dieses System ein zweimal einfaches, einseitiges Kontaktieren. Schließlich wird aus der in Fig. 3 dargestellten Variante gezeigt, wie ein einfaches, einseitiges Kontaktieren mit einem erfindungsgemäßen Steckverbinder ermöglicht wird. Dabei ist aus Fig. 3b, wo der Stecker in den Sockel eingebracht ist, zu sehen, wie sich die Abknickung 10 am rückwärtigen Teil des Federkontaktes 7 anlegt und dadurch eine Abstützung bewirkt, die eine Kontaktierung des bauchigen Teils 8 des Federkontaktes 7 mit der Kontaktzunge 18 unterstützt. Da der Fuß 2a des Steckers 2 nicht bis in den Bereich der Ausformung 13 vordringt, wird diese vor einer mechanischen Verformung geschützt und kann somit insbesondere die Offnerfunktion zuverlässig und sicher wahrnehmen.From the cross section shown in Fig. 2 through the base 1 and the foot 2a of the plug 2 can be seen that the contact tongues 18 have a bent end 20 which engages in slots 19 and thus produces a tight fit of the contact tongues. The width B of the plug base corresponds to the width of the opening 23 in the base through which the base 2a of the plug 2 is inserted. If a plug, as shown in FIG. 2 a, is inserted into a base, as shown in FIG. 2 a, this plug connection system can perform the functions of two-sided contacting plus opening function, prematurely. The two-sided contacting takes place via the non-interconnected contact tongues 18, which each make contact with the spring contacts 7. When the foot 2a is pulled out, the opposing spring contacts 7 rest against each other with their formations, since the gap 14 is selected so that the formations 13 are contacted before the kink 10 bears against the inner edge of the gap 24. The opening function is then performed via the spring force pointing towards the center of the base. However, it can also be desired that only one-sided contacting plus an opening function should be performed by the connector. In this case, a base as shown in FIG. 2a is brought together with a plug base constructed according to S2. Further variants result from FIGS. 2b, 3a and 3b, the gap 14 in the base support shown in FIG. 2b being so narrow that the bends 10 abut the inner edges 24 of the gap 14 before their shapes touch each other 13 takes place. In this case, the make function is established when the plug is pulled out. Such a base carrier in connection with a plug base S3 can therefore take over the functions of a double, two-sided contacting plus make function. If such a base is connected to a plug base according to S4, this system takes over two-way, one-sided contacting. Finally, the variant shown in FIG. 3 shows how simple, one-sided contacting is made possible with a connector according to the invention. From Fig. 3b, where the plug is inserted into the base, it can be seen how the kink 10 bears on the rear part of the spring contact 7 and thereby causes a support which makes contact with the bulbous part 8 of the spring contact 7 with the contact tongue 18 supports. Since the foot 2a of the plug 2 does not penetrate into the area of the formation 13, it is protected against mechanical deformation and can thus, in particular, perform the opening function reliably and safely.

Claims (8)

1. An operational plug-in connector in which, contact tongues (18) provided on the outer side of a plug base (2a) insertable into a bushing (1) cooperate in each case with spring contacts (7) disposed in insulated manner e. g. pairwise on two opposite inside faces of the bushing (1) which contacts, in their upper area of the bushing (1) facing the plug (2), are constructed resiliently and in the manner of a bulge to contact with the plug contact tongues (18) and subsequently, on the area (8) constructed resiliently as a bulge, are provided with semi-circular contact cambers (13) bent out further in the direction of the middle of the bushing housing, said cambers being forcibly opened in the plug-in condition, the length of the plug base (2a) being calculated in such a manner that its contact tongues (18) when the plug (2) is inserted end just before the contact cambers (13), characterised in that the spring contacts (7) oppositely placed in each instance are held in chambers of the bushing housing (3) delimited by stays (16) ehich correspond to their width, in that the contact cambers (13) extend into transversal elements (10a) directed substantially parallel with the bottom of the bushing and into connecting bends (10) pointing in the direction of the soldering lugs (9) which bends effect a resilient supporting on the vertical arms of the spring contacts (7) for the purpose of increasing the counterpressure for the plug contacting in the area (8) constructed resiliently as a bulge, and in that an abutment for these bends (10) is formed by the side walls of a gap (14) which is disposed in the area of the bushing housing (3) facing away from the plug between said housing and the bushing holder (4).
2. An operational plug-in connector according to Claim 1, characterised in that the gap (14) between bushing housing (3) and bushing holder (4) is disposed circumferentially and is subdivided by the bottom end of the stays (16) into individual portions.
3. An operational plug-in connector according to Claims 1 or 2, characterised in that the width of the portions of the gap (14) is chosen in each case depending upon the desired manner of operation of the spring contacts.
4. An operational plug-in connector according to Claims 1 to 3, characterised in that the chambers (5) of the bushing housing (3) are provided in the insertion area for the plug with transversal webs (6) over which the spring contacts (7) are laid U-shaped and, with the second outwardly-directed web, extend into soldering lugs (9) which on the side facing away from the insertion area of the plug protrude out of the bushing housing (3) parallel with the plug-in direction.
5. An operational plug-in connector according to Claim 4, characterised in that the distance between the transversal web (6) and the bushing housing (3) corresponds to the thickness of the spring contacts (7).
6. An operational plug-in connector according to one of Claims 1 to 5, characterised in that the bends (10) at the free end of the one arm of the spring contacts (7) extend parallel with the soldering lugs (9).
7. An operational plug-in connector according to one of Claims 1 to 6, characterised in that the bushing holder (4) can be snapped into the bushing housing (3) and is held therein by means of a groove (21) situated in its front face into which a projection (22) extending in the area of the base of the bushing housing (3) engages.
8. A functional plug-in connector according to one of Claims 1 to 7, characterised in that a transversally-extending engagement recess (17) is provided on one side of the base of the plug (2a), a correspondingly designed sprung stop- nose member (12) in the bushing holder (4) cooperating with this.
EP81102291A 1980-04-19 1981-03-26 Functional plug connector Expired EP0038431B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102291T ATE10887T1 (en) 1980-04-19 1981-03-26 FUNCTIONAL CONNECTOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803015139 DE3015139A1 (en) 1980-04-19 1980-04-19 FUNCTIONAL CONNECTOR
DE3015139 1980-04-19

Publications (3)

Publication Number Publication Date
EP0038431A2 EP0038431A2 (en) 1981-10-28
EP0038431A3 EP0038431A3 (en) 1981-12-16
EP0038431B1 true EP0038431B1 (en) 1984-12-19

Family

ID=6100473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102291A Expired EP0038431B1 (en) 1980-04-19 1981-03-26 Functional plug connector

Country Status (3)

Country Link
EP (1) EP0038431B1 (en)
AT (1) ATE10887T1 (en)
DE (2) DE3015139A1 (en)

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DE4207461C1 (en) * 1992-03-10 1993-01-14 Albert Ackermann Gmbh & Co Kg, 5270 Gummersbach, De HF screened electrical coupling e.g. for data transmission terminal - comprises integral socket formed by metal die casting for plug with two=step base

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DE4207461C1 (en) * 1992-03-10 1993-01-14 Albert Ackermann Gmbh & Co Kg, 5270 Gummersbach, De HF screened electrical coupling e.g. for data transmission terminal - comprises integral socket formed by metal die casting for plug with two=step base

Also Published As

Publication number Publication date
DE3015139A1 (en) 1981-10-22
DE3167782D1 (en) 1985-01-31
EP0038431A3 (en) 1981-12-16
EP0038431A2 (en) 1981-10-28
ATE10887T1 (en) 1985-01-15

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