EP0663107B1 - Plug and socket connector unit - Google Patents

Plug and socket connector unit Download PDF

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Publication number
EP0663107B1
EP0663107B1 EP94924809A EP94924809A EP0663107B1 EP 0663107 B1 EP0663107 B1 EP 0663107B1 EP 94924809 A EP94924809 A EP 94924809A EP 94924809 A EP94924809 A EP 94924809A EP 0663107 B1 EP0663107 B1 EP 0663107B1
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EP
European Patent Office
Prior art keywords
leg
housing
free end
engaging element
inner space
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
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EP94924809A
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German (de)
French (fr)
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EP0663107A1 (en
Inventor
Werner Jost
Günter Wittwer
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.)
Contact GmbH
Contact GmbH Elektrische Bauelemente
Original Assignee
Contact GmbH
Contact GmbH Elektrische Bauelemente
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Publication of EP0663107A1 publication Critical patent/EP0663107A1/en
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Publication of EP0663107B1 publication Critical patent/EP0663107B1/en
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    • 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
    • H01R13/6277—Snap or like fastening comprising annular latching means, e.g. ring snapping in an annular groove

Definitions

  • the present invention relates to a connector pair with the features of the preamble of claim 1.
  • Such connector pairs are described in a wide variety of configurations in the prior art and are in use. Such constructions are used in particular in the case of high-current connectors. Such designs are also available in large numbers for low-voltage connectors.
  • a number of connector pairs are known in the prior art which can be locked together by means of bayonet, screw or snap mechanisms or the like.
  • the plug and the socket cannot simply be plugged together without actuating a locking member which, when plugged together, holds the two components in a firmly connected position and can only be actuated to release the two components.
  • a hose coupling for fluid-carrying hoses is known from DT 17 75 302.
  • an electrical plug connection with two connecting elements is known, the one connecting element having at least one locking element mounted in a positive guidance of a housing and radially displaceable by means of an axial slide, which engages behind a shoulder of the other connecting element in the locking position and by manual displacement of the axial slide acted upon by a spring arrangement can be controlled into an unlocking position which releases the shoulder.
  • the spring arrangement is a partially hollow one that surrounds the housing Sheet metal stamped part formed, the hollow areas are actuated by the axial slide.
  • the locking members are arranged tangentially to the inner cavity of the housing and move radially outward when the inner cavity of the housing is released.
  • the present invention addresses the problem of providing a connector pair of the type mentioned at the beginning, which enables this type of actuation.
  • the locking element is designed in the manner defined in the characterizing part of claim 1 in the connector pair mentioned above.
  • This configuration allows the plug and the socket to be simply plugged together without the sleeve having to be actuated. It is also possible to bring the sleeve into its actuated position, which may make it easier to plug it together. however, it is not absolutely necessary to move the sleeve.
  • a pair of connectors is illustrated in the drawings, in which the plug and socket are designed as circular connectors.
  • the idea of the invention can also be implemented in connectors that have an angular cross-sectional shape.
  • a plug 1 and a socket 1 'of a connector pair each have a tubular housing 3, 3'.
  • Each housing 3, 3 ' can be constructed in one piece, but it can also consist of several sections. If the housing 3, 3 'is constructed in several parts, this has the advantage that different series can be realized, only individual parts having to be replaced in each case. In this way, for example, built-in connectors, coupling connectors, angle connectors etc. can be produced in a simple manner.
  • a contact insert 7, 7 'with a plurality of contact pins 9 or contact sockets 9' is arranged in each housing 3, 3 '. Since each contact insert 7, 7 'is set back in relation to each free end 13, 13 of the plug 1 or the socket 1' into the interior of the respective housing 3, 3 ', an interior space 14, 14' remains in each case. Moreover, each interior space 14, 14 'is delimited by the essentially hollow cylindrical inner wall of the respective housing 3, 3' and the respective contact insert 7, 7 '.
  • Each contact insert 7, 7 ' can have at least one coding groove (not shown) or a coding spring on its circumference, by means of which the angular position of the plug to be inserted into the socket 1' is defined.
  • each latching element 20 which have a three-legged open angular shape.
  • Each latching element 20 is pivotably mounted with a free end 22, on which there is a thickening 24, of a first leg 26 via a corresponding web 28 on the outside of the housing 3 '.
  • the locking element 20 is pivotally but captively held on the web 28, since the inner wall 32 of the sleeve 30 is mounted at such a close distance to the web 28 that the Thickening 24 at the free end 22 of the first leg 26 does not have the web 28 can go out.
  • a second and a third leg 34, 36 are formed on the first leg 26 of the latching element 20 at its end opposite the thickening 24.
  • the third leg 36 is integrally connected to the first leg 26 and the second leg 34 represents the kinking extension of the third leg 36.
  • the free end of the second leg 34 is in the rest position through an air gap 38 from the first leg 26 (see Fig. 1 or Fig. 2) separately.
  • the first leg 26 is slightly convex in the direction of the second and third legs 34, 36 arched.
  • the second leg and the third leg 34, 36 of the locking element 20 are received in an opening 39 with play, parts of the second and third legs 34, 36 projecting into the free interior 14 ', so that the plug inserted into the socket 1' 1 or the recess 17 on the outside 15 of the housing 3 come into engagement with the latching element 20, since the second and third legs 34, 36 have correspondingly inclined surfaces like the recess 17.
  • the angle between the first leg 26 and the third leg 36 decreases during the transition from the first position to the second position, since the locking element 20 is compressed in the radial direction.
  • the outer surface 42 of the second leg 36 is angled twice, with a first kink 46 running in the area of the inner edge of the opening 39 and a second kink 48, which leads into the area of the latching element 20, the farthest into the free interior 14 'of the Socket 1 'or engages in the recess 17.
  • the area between the edge 46 and the edge 48 is inclined so that the free end 13 or the front edge of the plug 1 can press the latching element 20 into the opening 39 when the plug 1 and the socket 1 'are plugged together, i.e. the second and third legs 34, 36 are pushed into the opening 39, so that the gap 38 between the free end of the second leg 34 and the first leg 26 almost completely disappears and the convex curvature of the first leg 26 is just bent (see Fig 4).
  • the inner wall 32 of the sleeve 30 limits the deformation of the locking element 20 in the radial direction, based on the central axis of the bush 1 '.
  • the depression 17 comes to lie directly below the opening 39 with the latching element 20, whereupon the second and third legs 34, 36 push out again from the opening 39 and engage positively in the recess 17.
  • the angle which the outer surface 52 of the second leg 34 forms with the outer surface 42 of the third leg 36 is chosen such that it is not possible to pull the plug 1 out of the socket 1 ', since the outer surface 52 of the second leg 34 and the their corresponding surface in the recess 17 are inclined so far that it is not possible to push the latching element 20 outward in the radial direction out of the opening 39.
  • the outer surface of the third leg 36 forms an angle of approximately 25 ° to 85 ° with the outer surface 40 of the first leg 26, and the outer surface 52 of the second leg 34 includes the outer surface 42 of the third leg 36 Angles of about 30 ° to 80 °.
  • the plug 1 can then be completely pulled out of the socket 1 ′, the latching element 20 being received virtually completely in the free space 62 and the opening 39 during the separation process.
  • At least three such locking elements 20 are preferably arranged distributed along the circumference of the bushing 1 'in order to enable secure locking and unlocking.
  • Each locking element is made of polyethylene or a similar deformable and wear-resistant material to enable a sufficiently high number of plugging and disconnecting processes for the pair of connectors.
  • the locking element can be arranged not only on the side of the socket, but also on the side of the plug.
  • the locking assembly consisting of the sleeve 30 with the latching elements 20 accommodated therein can be produced as a separate component (see, for example, FIG. 2), which can be attached to the different installation, coupling, angled connectors, etc. This allows a large number of possible combinations, in particular the manufacture of a flying cable connection with plug and coupling part is greatly simplified.
  • the design of the locking elements 20 corresponds exactly to the above-described embodiments of the locking elements in the connector. Their assembly in the sleeve 30 is the same as in the connector described above.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

PCT No. PCT/EP94/02482 Sec. 371 Date May 10, 1995 Sec. 102(e) Date May 10, 1995 PCT Filed Jul. 27, 1994 PCT Pub. No. WO95/04390 PCT Pub. Date Feb. 9, 1995A connector pair with a plug (1) and a receptacle (1'), each of which comprises at least one contact insert (7, 7') in which at least one contact (9, 9') is arranged, whereby free ends (13, 13') of the housings (3, 3') can be joined in such a manner that the free end (13) of the other housing (3) projects into the open inner space (14') on the face of the one housing (3') and the contacts (9, 9') of the plug (1) and the receptacle (1') come into engagement with each other, is adapted such that in the area of the free end (13) at least one recess (17) is provided in an outer wall of the one housing (3), in the area of the free end (13') of the other housing (3') at least one engaging element (20) corresponding to the recess (18) is provided, which in a first position projects into the inner space (14') of the other housing (3') and in a second position clears the inner space (14') of the other housing (3'), and that a sleeve (30) surrounding the free end (13') is arranged, which in a rest position urges the engaging element (20) into the inner space (14') of the other housing (3') and in an operative position allows the engaging element (20) to escape from the inner space (14') of the other housing (3').

Description

Die vorliegende Erfindung betrifft ein Steckverbinderpaar mit einem den Merkmalen des Oberbegriffs des Anspruchs 1.The present invention relates to a connector pair with the features of the preamble of claim 1.

Derartige Steckverbinderpaare sind im Stand der Technik in den unterschiedlichsten Ausgestaltungen beschrieben und im Einsatz. Insbesondere bei Starkstromsteckverbindern finden derartige Konstruktionen Anwendung. Aber auch bei Schwachstromverbindern gibt es derartige Ausführungen in großer Vielzahl.Such connector pairs are described in a wide variety of configurations in the prior art and are in use. Such constructions are used in particular in the case of high-current connectors. Such designs are also available in large numbers for low-voltage connectors.

Es sind im Stand der Technik eine Reihe von Steckverbinderpaaren bekannt, die durch Bajonett-, Schraub-, oder Schnappmechanismen oder dgl. miteinander verriegelbar sind. Allerdings können bei diesen bekannten Steckverbinderpaaren die Stecker und die Buchse nicht einfach zusammengesteckt werden, ohne dabei ein Verriegelungsorgan zu betätigen, das im zusammengesteckten Zustand die beiden Komponenten in fest verbundener Stellung hält und nur zum Lösen der beiden Komponenten zu betätigen ist.A number of connector pairs are known in the prior art which can be locked together by means of bayonet, screw or snap mechanisms or the like. However, in these known connector pairs, the plug and the socket cannot simply be plugged together without actuating a locking member which, when plugged together, holds the two components in a firmly connected position and can only be actuated to release the two components.

Aus der DT 17 75 302 ist eine Schlauchkupplung für flüssigkeitsführende Schläuche bekannt.A hose coupling for fluid-carrying hoses is known from DT 17 75 302.

Aus der DE 39 28 710 A1 ist eine elektrische Steckverbindung mit zwei Verbindungselementen bekannt, wobei das eine Verbindungselement mindestens ein in einer Zwangsführung eines Gehäuses gelagertes, mittels eines Axialschiebers radial verlagerbares Verriegelungselement aufweist, das in Verriegelungsstellung eine Schulter des anderen Verbindungselementes hintergreift und durch manuelle Verlagerung des von einer Federanordnung beaufschlagten Axialschiebers in eine die Schulter freigebende Entriegelungsposition steuerbar ist. Dabei ist die Federanordnung durch ein das Gehäuse umgebendes, teilweise hohl liegendes Blechstanzteil gebildet, dessen hohlliegende Bereiche von dem Axialschieber betätigt werden.From DE 39 28 710 A1 an electrical plug connection with two connecting elements is known, the one connecting element having at least one locking element mounted in a positive guidance of a housing and radially displaceable by means of an axial slide, which engages behind a shoulder of the other connecting element in the locking position and by manual displacement of the axial slide acted upon by a spring arrangement can be controlled into an unlocking position which releases the shoulder. The spring arrangement is a partially hollow one that surrounds the housing Sheet metal stamped part formed, the hollow areas are actuated by the axial slide.

Die Verriegelungsglieder sind hierbei tangential zur Innenhöhlung des Gehäuses angeordnet und wandern beim Freigeben der Innenhöhlung des Gehäuses radial nach außen.The locking members are arranged tangentially to the inner cavity of the housing and move radially outward when the inner cavity of the housing is released.

Aus der US-PS 4,017,139 ist elektrischer Steckverbinder bekannt, bei dem kreiszylinderförmig angeordnete Federzungen im Bereich ihres freien Endes radial nach innen weisende im Querschnitt halbkreisförmige Vorsprünge aufweisen, die in eine entsprechende ringförmige Nut eines gegengleich geformten Steckverbinders eingreifen können. An der Außenseite der Federelemente sind ebenfalls Vorsprünge angeordnet, die in eine Ausnehmung eines die Federelemente umgebenden Ringes eintauchen können, wenn der Ring verschoben wird, um die beiden Steckverbinder voneinander zu lösen. Im eingerasteten Zustand der Steckverbinder liegen die äußeren Vorsprünge der Federelemente an der Innenwand des Ringes an, so daß die Federelemente nicht radial nach außen ausweichen können.From US-PS 4,017,139 electrical connector is known, in the circular cylindrical spring tongues in the region of their free end have radially inwardly facing cross-sectional projections which can engage in a corresponding annular groove of an oppositely shaped connector. On the outside of the spring elements there are also projections which can dip into a recess in a ring surrounding the spring elements when the ring is displaced in order to detach the two plug connectors from one another. When the connectors are locked, the outer projections of the spring elements rest on the inner wall of the ring, so that the spring elements cannot move radially outwards.

Eine derartige Handhabungsmöglichkeit ist im Hinblick auf die Einfachheit der Bedienung wünschenswert.Such a handling option is desirable in view of the simplicity of operation.

Ausgehend hiervon liegt der vorliegenden Erfindung das Problem zugrunde, ein Steckverbinderpaar der eingangs genannten Art bereitzustellen, das diese Art der Betätigung ermöglicht.Proceeding from this, the present invention addresses the problem of providing a connector pair of the type mentioned at the beginning, which enables this type of actuation.

Zur Lösung dieses Problems ist bei dem eingangs genannten Steckverbinderpaar das Rastelement in der im kennzeichnenden Teil des Anspruchs 1 definierten Weise ausgestaltet.To solve this problem, the locking element is designed in the manner defined in the characterizing part of claim 1 in the connector pair mentioned above.

Diese Ausgestaltung erlaubt ein einfaches Zusammenstecken des Steckers und der Buchse, ohne daß die Hülse zu betätigen wäre. Zwar besteht auch die Möglichkeit, die Hülse in Ihre betätigte Stellung zu bringen, wodurch sich ggf. das Zusammenstecken erleichtert. es ist jedoch nicht zwingend erforderlich, die Hülse zu verschieben.This configuration allows the plug and the socket to be simply plugged together without the sleeve having to be actuated. It is also possible to bring the sleeve into its actuated position, which may make it easier to plug it together. however, it is not absolutely necessary to move the sleeve.

Weitere Vorteile, Eigenschaften und Merkmale der Erfindung sind Gegenstand von Unteransprüchen und werden unter Bezugnahme auf die beigefügten Zeichnungen erläutert. In den Zeichnungen zeigen

Fig. 1
ein Steckverbinderpaar in schematischer Längsschnittdarstellung in getrenntem Zustand,
Fig. 2
einen vergrößerten Ausschnitt der Fig. 1 beiZ mit einem Rastelement,
Fig. 3
das Steckverbinderpaar nach Fig. 1 in einer ersten Übergangsstellung beim Zusammenstecken,
Fig. 4
das Steckverbinderpaar nach Fig. 1 in einer zweiten Übergangsstellung beim Zusammenstecken,
Fig. 5
das Steckverbinderpaar nach Fig. 1 in zusammengestecktem Zustand,
Fig. 6
das Steckverbinderpaar nach Fig. 1 beim Trennen in einer ersten Übergangsstellung, und
Fig. 7
das Steckverbinderpaar nach Fig. 1 beim Trennen in einer zweiten Übergangsstellung.
Further advantages, properties and features of the invention are the subject of subclaims and are explained with reference to the accompanying drawings. Show in the drawings
Fig. 1
a pair of connectors in a schematic longitudinal sectional view in a separated state,
Fig. 2
2 an enlarged section of FIG. 1 with a latching element,
Fig. 3
1 in a first transition position when plugging together,
Fig. 4
1 in a second transition position when plugging together,
Fig. 5
1 in the assembled state,
Fig. 6
1 when disconnecting in a first transition position, and
Fig. 7
1 when disconnecting in a second transition position.

In den Zeichnungen ist ein Steckverbinderpaar veranschaulicht, bei dem Stecker und Buchse als Rundsteckverbinder ausgestaltet sind. Der Erfindungsgedanke ist jedoch auch bei Steckverbindern verwirklichbar, die eine eckige Querschnittsgestalt aufweisen. Außerdem besteht die Möglichkeit, den Erfindungsgedanken nicht nur bei freien Steckverbindern, sondern auch bei Einbauformen anzuwenden.A pair of connectors is illustrated in the drawings, in which the plug and socket are designed as circular connectors. However, the idea of the invention can also be implemented in connectors that have an angular cross-sectional shape. There is also the possibility of applying the inventive idea not only to free connectors, but also to installation forms.

Ein Stecker 1 und eine Buchse 1' eines Steckverbinderpaares weisen jeweils ein rohrförmiges Gehäuse 3, 3' auf. Jedes Gehäuse 3, 3' kann einstückig aufgebaut sein, es kann jedoch auch aus mehreren Abschnitten bestehen. Falls das Gehäuse 3, 3' mehrteilig aufgebaut ist, hat dies den Vorteil, daß unterschiedliche Baureihen realisiert werden können, wobei jeweils nur einzelne Teile ausgewechselt werden müssen. Auf diese Weise können z.B. Einbau-Steckverbinder, Kupplungs-Steckverbinder, Winkel-Steckverbinder etc. auf einfache Weise hergestellt werden.A plug 1 and a socket 1 'of a connector pair each have a tubular housing 3, 3'. Each housing 3, 3 'can be constructed in one piece, but it can also consist of several sections. If the housing 3, 3 'is constructed in several parts, this has the advantage that different series can be realized, only individual parts having to be replaced in each case. In this way, for example, built-in connectors, coupling connectors, angle connectors etc. can be produced in a simple manner.

In jedem Gehäuse 3, 3' ist ein Kontakteinsatz 7, 7' mit mehreren Kontaktstiften 9 bzw. Kontaktbuchsen 9' angeordnet. Da jeder Kontakteinsatz 7, 7' gegenüber jedem freien Ende 13, 13 des Steckers 1 bzw. der Buchse 1' in das Innere des jeweiligen Gehäuses 3, 3' zurückgesetzt ist, verbleibt jeweils ein Innenraum 14, 14'. Im übrigen ist jeder Innenraum 14, 14' durch die im wesentlichen hohlzylindrische Innenwand des jeweiligen Gehäuses 3, 3' und den jeweiligen Kontakteinsatz 7, 7' begrenzt. Jeder Kontakteinsatz 7, 7' kann an seinem Umfang wenigstens eine (nicht veranschaulichte) Codiernut bzw. eine Codierfeder aufweisen, durch die die Winkelstellung des in die Buchse 1' einzuschiebenden Steckers definiert ist.A contact insert 7, 7 'with a plurality of contact pins 9 or contact sockets 9' is arranged in each housing 3, 3 '. Since each contact insert 7, 7 'is set back in relation to each free end 13, 13 of the plug 1 or the socket 1' into the interior of the respective housing 3, 3 ', an interior space 14, 14' remains in each case. Moreover, each interior space 14, 14 'is delimited by the essentially hollow cylindrical inner wall of the respective housing 3, 3' and the respective contact insert 7, 7 '. Each contact insert 7, 7 'can have at least one coding groove (not shown) or a coding spring on its circumference, by means of which the angular position of the plug to be inserted into the socket 1' is defined.

Im Bereich des freien Endes 13 des Gehäuses 3 bzw. des Kontakteinsatzes 7 des Steckers 1 sind an dessen Umfang an der Außenseite 15 wenigstens eine, üblicherweise jedoch mehrere Vertiefungen 17 vorgesehen. Im entsprechenden Bereich des freien Endes 13' des Gehäuses 3' der Buchse 1' sind in entsprechender Anzahl der Ausnehmungen 17 an dem Stecker 1 Rastelemente 20 vorgesehen, die eine dreischenkelige offene Winkelform aufweisen. Jedes Rastelement 20 ist mit einem freien Ende 22, an dem sich eine Verdickung 24 befindet, eines ersten Schenkels 26 über einen entsprechenden Steg 28 an der Außenseite des Gehäuses 3' schwenkbar gelagert.In the area of the free end 13 of the housing 3 or of the contact insert 7 of the plug 1, at least one, but usually a plurality of depressions 17 are provided on the outside of the plug 15 on its periphery. In the corresponding area of the free end 13 'of the housing 3' of the socket 1 ', there are a corresponding number of recesses 17 on the plug 1 latching elements 20 which have a three-legged open angular shape. Each latching element 20 is pivotably mounted with a free end 22, on which there is a thickening 24, of a first leg 26 via a corresponding web 28 on the outside of the housing 3 '.

Mittels einer Hülse 30, die das freie Ende 13' des Gehäuses 3' umgibt, ist das Rastelement 20 an dem Steg 28 schwenkbar aber unverlierbar gehalten, da die Innenwand 32 der Hülse 30 in so dichtem Abstand zu dem Steg 28 angebracht ist, daß die Verdickung 24 am freien Ende 22 des ersten Schenkels 26 nicht über den Steg 28 hinausgehen kann. An dem ersten Schenkel 26 des Rastelementes 20 sind an dessen der Verdickung 24 gegenüberliegenden Ende ein zweiter und ein dritter Schenkel 34, 36 angeformt. Dabei ist der dritte Schenkel 36 mit dem ersten Schenkel 26 einstückig verbunden und der zweite Schenkel 34 stellt die abknickende Verlängerung des dritten Schenkels 36 dar. Das freie Ende des zweiten Schenkels 34 ist durch einen Luftspalt 38 von dem ersten Schenkel 26 in der Ruhestellung (siehe Fig. 1 oder Fig. 2) getrennt.By means of a sleeve 30, which surrounds the free end 13 'of the housing 3', the locking element 20 is pivotally but captively held on the web 28, since the inner wall 32 of the sleeve 30 is mounted at such a close distance to the web 28 that the Thickening 24 at the free end 22 of the first leg 26 does not have the web 28 can go out. A second and a third leg 34, 36 are formed on the first leg 26 of the latching element 20 at its end opposite the thickening 24. The third leg 36 is integrally connected to the first leg 26 and the second leg 34 represents the kinking extension of the third leg 36. The free end of the second leg 34 is in the rest position through an air gap 38 from the first leg 26 (see Fig. 1 or Fig. 2) separately.

Der erste Schenkel 26 ist in einer ersten Stellung, in der das Rastelement 20 bzw. dessen zweite und dritte Schenkel 34, 36 in den freien Innenraum 14' der Buchse 1' reichen, leicht konvex in Richtung auf die zweiten und dritten Schenkel 34, 36 gewölbt.In a first position, in which the latching element 20 or its second and third legs 34, 36 extend into the free interior 14 'of the socket 1', the first leg 26 is slightly convex in the direction of the second and third legs 34, 36 arched.

Der zweite Schenkel und der dritte Schenkel 34, 36 des Rastelementes 20 sind in einer Öffnung 39 mit Spiel aufgenommen, wobei Teile des zweiten und dritten Schenkels 34, 36 in den freien Innenraum 14' ragen, so daß der in die Buchse 1' eingeschobene Stecker 1 bzw. die Vertiefung 17 an der Außenseite 15 des Gehäuses 3 mit dem Rastelement 20 in Eingriff kommen, da die zweiten und dritten Schenkel 34, 36 entsprechend geneigte Flächen wie die Ausnehmung 17 aufweisen.The second leg and the third leg 34, 36 of the locking element 20 are received in an opening 39 with play, parts of the second and third legs 34, 36 projecting into the free interior 14 ', so that the plug inserted into the socket 1' 1 or the recess 17 on the outside 15 of the housing 3 come into engagement with the latching element 20, since the second and third legs 34, 36 have correspondingly inclined surfaces like the recess 17.

Der Winkel zwischen dem ersten Schenkel 26 und dem dritten Schenkel 36 verringert sich beim Übergang aus der ersten Stellung in die zweite Stellung, da dabei das Rastelement 20 in radialer Richtung gestaucht wird.The angle between the first leg 26 and the third leg 36 decreases during the transition from the first position to the second position, since the locking element 20 is compressed in the radial direction.

Die Außenfläche 42 des zweiten Schenkels 36 ist zweifach abgewinkelt, wobei ein erster Knick 46 im Bereich der inneren Kante der Öffnung 39 verläuft und ein zweiter Knick 48, der in den Bereich des Rastelementes 20 überleitet, der am weitesten in den freien Innenraum 14' der Buchse 1' bzw. in die Ausnehmung 17 eingreift.The outer surface 42 of the second leg 36 is angled twice, with a first kink 46 running in the area of the inner edge of the opening 39 and a second kink 48, which leads into the area of the latching element 20, the farthest into the free interior 14 'of the Socket 1 'or engages in the recess 17.

Dabei ist der Bereich zwischen der Kante 46 und der Kante 48 so geneigt, daß das freie Ende 13 bzw. die Vorderkante des Stekkers 1 das Rastelement 20 beim Zusammenstecken des Steckers 1 und der Buchse 1' in die Öffnung 39 hineindrücken kann, d.h. die zweiten und dritten Schenkel 34, 36 werden in die Öffnung 39 hineingedrängt, so daß der Spalt 38 zwischen dem freien Ende des zweiten Schenkels 34 und dem ersten Schenkel 26 fast vollständig verschwindet und die konvexe Wölbung des ersten Schenkels 26 gerade gebogen wird (siehe Fig. 4). Dabei begrenzt die Innenwand 32 der Hülse 30 die Verformung des Rastelementes 20 in radialer Richtung, bezogen auf die Mittelachse der Buchse 1'.The area between the edge 46 and the edge 48 is inclined so that the free end 13 or the front edge of the plug 1 can press the latching element 20 into the opening 39 when the plug 1 and the socket 1 'are plugged together, i.e. the second and third legs 34, 36 are pushed into the opening 39, so that the gap 38 between the free end of the second leg 34 and the first leg 26 almost completely disappears and the convex curvature of the first leg 26 is just bent (see Fig 4). The inner wall 32 of the sleeve 30 limits the deformation of the locking element 20 in the radial direction, based on the central axis of the bush 1 '.

Beim weiteren Einschieben des Steckers 1 in die Buchse 1' kommt die Vertiefung 17 direkt unter der Öffnung 39 mit dem Rastelement 20 zu liegen, woraufhin der zweite und dritte Schenkel 34, 36 aus der Öffnung 39 wieder herausdrängen und formschlüssig in die Ausnehmung 17 einrastet. Der Winkel, den die Außenfläche 52 des zweiten Schenkels 34 mit der Außenfläche 42 des dritten Schenkels 36 einschließt, ist so gewählt, daß ein Herausziehen des Steckers 1 aus der Buchse 1' nicht möglich ist, da die Außenfläche 52 des zweiten Schenkels 34 und die ihr entsprechende Fläche in der Ausnehmung 17 so weit geneigt sind, daß ein Herausdrücken des Rastelementes 20 in radialer Richtung nach außen aus der Öffnung 39 nicht möglich ist.When the plug 1 is pushed further into the socket 1 ', the depression 17 comes to lie directly below the opening 39 with the latching element 20, whereupon the second and third legs 34, 36 push out again from the opening 39 and engage positively in the recess 17. The angle which the outer surface 52 of the second leg 34 forms with the outer surface 42 of the third leg 36 is chosen such that it is not possible to pull the plug 1 out of the socket 1 ', since the outer surface 52 of the second leg 34 and the their corresponding surface in the recess 17 are inclined so far that it is not possible to push the latching element 20 outward in the radial direction out of the opening 39.

Bei der gezeigten Ausführungsform schließt in der Ruhestellung die Außenfläche des dritten Schenkels 36 mit der Außenfläche 40 des ersten Schenkels 26 einen Winkel von etwa 25° bis 85° ein und die Außenfläche 52 des zweiten Schenkels 34 schließt mit der Außenfläche 42 des dritten Schenkels 36 einen Winkel von etwa 30° bis 80° ein.In the embodiment shown, in the rest position, the outer surface of the third leg 36 forms an angle of approximately 25 ° to 85 ° with the outer surface 40 of the first leg 26, and the outer surface 52 of the second leg 34 includes the outer surface 42 of the third leg 36 Angles of about 30 ° to 80 °.

Erst nachdem die Hülse 30 in axialer Richtung der Buchse 1' von dem freien Ende 13' weg in Richtung des Pfeiles P in Fig. 6 gegen die Kraft einer zwischen der Hülse 30 und dem Gehäuse 3' gefangenen Schraubenfeder 60 gezogen wird, befindet sich im Bereich des Rastelementes 20 ein aus der Innenwandung der Hülse 30 ausgesparter Freiraum 62 in Position. Damit kann das Rastelement 20 in diesen Freiraum 62 zumindest teilweise entweichen. Eine Zugkraft an dem Stecker 1 in Richtung des Pfeiles Q Fig. 6 bewirkt, daß die Außenfläche 52 des zweiten Schenkels 34 an ihrer gegenüberliegenden Fläche der Ausnehmung 17 entlanggleitet und das Rastelement 20 um das durch den Stecker 28 gebildete Lager in den Freiraum 62 schwenkt.Only after the sleeve 30 is pulled in the axial direction of the bushing 1 'away from the free end 13' in the direction of arrow P in FIG. 6 against the force of a helical spring 60 caught between the sleeve 30 and the housing 3 ', is in the Area of the locking element 20 from the inner wall of the sleeve 30 free space 62 in position. The locking element 20 can thus at least partially escape into this free space 62. A tensile force on the connector 1 in the direction of arrow Q Fig. 6 causes the outer surface 52 of the second leg 34 to slide along its opposite surface of the recess 17 and the locking element 20 pivots about the bearing formed by the connector 28 into the free space 62.

Wie in Fig. 7 veranschaulicht, kann dann der Stecker 1 von der Buchse 1' vollständig herausgezogen werden, wobei das Rastelement 20 während des Trennvorgangs praktisch vollständig in dem Freiraum 62 und der Öffnung 39 aufgenommen ist.As illustrated in FIG. 7, the plug 1 can then be completely pulled out of the socket 1 ′, the latching element 20 being received virtually completely in the free space 62 and the opening 39 during the separation process.

Vorzugsweise sind wenigstens drei derartige Rastelemente 20 entlang des Umfangs der Buchse 1' verteilt angeordnet, um ein sicheres Ver- und Entriegeln zu ermöglichen. Jedes Rastelement ist aus Polyethylen oder einem ähnlichen verformbaren und verschleißfesten Material hergestellt, um eine ausreichend hohe Anzahl von Steck- und Trennvorgängen für das Steckverbinderpaar zu ermöglichen.At least three such locking elements 20 are preferably arranged distributed along the circumference of the bushing 1 'in order to enable secure locking and unlocking. Each locking element is made of polyethylene or a similar deformable and wear-resistant material to enable a sufficiently high number of plugging and disconnecting processes for the pair of connectors.

Es versteht sich, daß das Rastelement nicht nur auf der Seite der Buchse, sondern auch auf der Seite des Steckers angeordnet werden kann.It is understood that the locking element can be arranged not only on the side of the socket, but also on the side of the plug.

Außerdem kann die Verriegelungsbaugruppe bestehend aus der Hülse 30 mit den darin aufgenommenen Rastelementen 20 als separates Bauteil (siehe z.B. Fig. 2) hergestellt werden, das an die unterschiedlichen Einbau-, Kupplungs-, Winkelsteckverbinder etc. angebaut werden kann. Dies erlaubt eine große Anzahl von Kombinationsmöglichkeiten, insbesondere ist die Herstellung einer fliegenden Kabelverbindung mit Stecker und Kupplungsteil stark vereinfacht.In addition, the locking assembly consisting of the sleeve 30 with the latching elements 20 accommodated therein can be produced as a separate component (see, for example, FIG. 2), which can be attached to the different installation, coupling, angled connectors, etc. This allows a large number of possible combinations, in particular the manufacture of a flying cable connection with plug and coupling part is greatly simplified.

Die Gestaltung der Rastelemente 20 entspricht genau den vorstehend beschriebenen Ausführungsformen der Rastelemente in dem Steckverbinder. Auch ihre Montage in der Hülse 30 ist gleich wie bei dem vorstehend beschriebenen Steckverbinder.The design of the locking elements 20 corresponds exactly to the above-described embodiments of the locking elements in the connector. Their assembly in the sleeve 30 is the same as in the connector described above.

Claims (8)

  1. A high or low voltage current connector pair having
    - a plug (1) and a receptacle (1'), each of which comprises a housing (3, 3') having each at least one contact insert (7, 7') in which at least one contact (9, 9') is arranged,
    - wherein the free ends (13, 13') of the housings (3, 3') can be joined in such a manner that the inner space (14') open at the front end of the one housing (3') projects into the free end (13) of the other housing (3), and the contacts (9, 9') of the plug (1) and the receptacle (1') get into engagement with each other,
    - at least one recess (17) is provided in the area of the free end (13) of the one housing (3) at the outer wall (15) thereof,
    - in the area of the free end (13') of the other housing (3') at least one engaging element (20) which corresponds with the recess (17) and which in a first position projects into an inner space (14') of the other housing and in a second position clears the inner space (14') of the other housing (3), and
    - a sleeve (30) surrounding the free end (13') is arranged which urges the engaging element (20) into the inner space (14') of the other housing (3') in a rest position and allows the engaging element (20) to escape from the inner space (14') of the other housing (3') in an operative position,
    characterized in that
    in longitudinal section the engaging element (20) has a three-legged open angular shape, with a first leg (26) of the angular shape having a free end (20) extending beyond a second leg (34) of the angular shape, and
    the engaging element (20) is connected with the other housing in such a manner that the free end (22) of the first leg (26) is movably received at the housing, so that the second leg (34) and a third leg (36) of the engaging element (20) can extend through an opening (39) in the inner space (14') of the housing (3').
  2. The connector pair according to claim 1, characterized in that both the second leg (34) and the third leg (36) of the engaging element (20) are so inclined that they can essentially be positively accommodated in the recess (17).
  3. The connector pair according to any one of the previous claims, characterized in that the outer surface of the third leg (36) and the outer surface (40) of the first leg (26) define an angle of approximately 25° to 85°, and the outer surface (52) of the second leg (34) and the outer surface (42) of the third leg (36) define an angle of approximately 30° to 80°.
  4. The connector pair according to any one of the previous claims, characterized in that in the first position the first leg (26) is convexly bulged toward the second leg (34) and the third leg (36).
  5. The connector pair according to any one of the previous claims, characterized in that the angle between the first leg (26) and the third leg (36) decreases during the transition from the first position to the second position.
  6. The connector pair according to any one of the previous claims, characterized in that the convex bulge of the first leg (26) and the distance (38) between the first leg (26) and the second leg (34) are so dimensioned that in the first position the first leg (26) abuts the sleeve (30) and the free end of the third leg (34) abuts the first leg (26).
  7. The connector pair according to any one of the previous claims, characterized in that the sleeve (30) surrounding the free end (13') of the other housing (3') is biased by means of a spring arrangement (60) in its rest position.
  8. The connector pair according to any one of the previous claims, characterized in that the sleeve (30) surrounding the free end (13') of the other housing (3') has a free space (62) into which the engaging element (20) can escape in the operative position of the sleeve (30).
EP94924809A 1993-08-02 1994-07-27 Plug and socket connector unit Expired - Lifetime EP0663107B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4325895 1993-08-02
DE4325895A DE4325895C1 (en) 1993-08-02 1993-08-02 Connector pair
PCT/EP1994/002482 WO1995004390A1 (en) 1993-08-02 1994-07-27 Plug and socket connector unit

Publications (2)

Publication Number Publication Date
EP0663107A1 EP0663107A1 (en) 1995-07-19
EP0663107B1 true EP0663107B1 (en) 1997-10-22

Family

ID=6494269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94924809A Expired - Lifetime EP0663107B1 (en) 1993-08-02 1994-07-27 Plug and socket connector unit

Country Status (6)

Country Link
US (1) US5637010A (en)
EP (1) EP0663107B1 (en)
AT (1) ATE159619T1 (en)
DE (1) DE4325895C1 (en)
ES (1) ES2109722T3 (en)
WO (1) WO1995004390A1 (en)

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Also Published As

Publication number Publication date
DE4325895C1 (en) 1994-12-22
WO1995004390A1 (en) 1995-02-09
US5637010A (en) 1997-06-10
ES2109722T3 (en) 1998-01-16
ATE159619T1 (en) 1997-11-15
EP0663107A1 (en) 1995-07-19

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