EP0562347B1 - Electrical connector with mechanical interlock by means of a latch-spring - Google Patents

Electrical connector with mechanical interlock by means of a latch-spring Download PDF

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Publication number
EP0562347B1
EP0562347B1 EP93103724A EP93103724A EP0562347B1 EP 0562347 B1 EP0562347 B1 EP 0562347B1 EP 93103724 A EP93103724 A EP 93103724A EP 93103724 A EP93103724 A EP 93103724A EP 0562347 B1 EP0562347 B1 EP 0562347B1
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EP
European Patent Office
Prior art keywords
catch
spring
connector
connector according
foot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93103724A
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German (de)
French (fr)
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EP0562347A1 (en
Inventor
Ludwig Dipl.-Ing. Pauss
Waldemar Jorroch
Mario Dipl.-Ing. Lübstorf
Albert Schlüter
Ernst Schreiber
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.)
Delphi Automotive Systems Deutschland GmbH
Original Assignee
Kabelwerke Reinshagen GmbH
Delphi Automotive Systems Deutschland GmbH
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 Kabelwerke Reinshagen GmbH, Delphi Automotive Systems Deutschland GmbH filed Critical Kabelwerke Reinshagen GmbH
Publication of EP0562347A1 publication Critical patent/EP0562347A1/en
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Publication of EP0562347B1 publication Critical patent/EP0562347B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances

Definitions

  • the invention relates to an electrical connector, as it is described in detail, for. B. is known from DE-A-39 16 863.
  • a fork-shaped spring plate serves as a detent spring.
  • the middle prong of the fork is provided with an opening on its latching arm, FIG. 3.
  • the opening has a stop tab which can interact with a latching shoulder of a mating connector or device, compare FIG Release position can be pivoted or tilted.
  • a plug of a similar type is known from EP-A-0 351 083.
  • One end of a leaf spring forms a hook-shaped latching foot which can interact with corresponding latching means on the mating connector, see FIG. 6.
  • the known designs withstand the separating or tensile forces acting on the plug-in connector only until the freely movable locking section at the end of the detent spring is pushed out of its locking position to the outside, thereby releasing the detent cam or the like on the mating connector or device.
  • the invention is based on the endeavor to create an electrical connector of the type mentioned at the outset, in which a very high resistance to unlocking is opposed by external separating forces.
  • the invention provides that a stop surface is arranged on the housing, on which the detent spring is supported with a detent foot in the locking position, for example in the direction of the mating connector or the like. This ensures that the action of axial separating forces that want to release the electrical connector, the locking foot of the detent spring can not be pressed out into the release position. Consequently, extremely high separating forces can act on the mechanical locking of the plug without the detent spring losing its functionality.
  • the invention can be used both with detent springs made from spring sheet metal and from spring wire.
  • the stop spring of the catch spring which is displaceable or pivotable, is assigned a stop surface on the housing of the plug, which prevents the catch foot from moving outwards under the axial release force and thereby releasing the catch.
  • the arrangement and the course of the stop surface depends on the arrangement and shape of the detent spring.
  • the stop surface will generally run approximately perpendicular to the direction of insertion.
  • the stop surface can also deviate from this direction and z. B. extend up to about 45 ° to the direction of insertion.
  • the locking surface and the stop surface should run at least almost parallel to achieve an optimal effect. Deviations of approx. 15 ° appear to be tolerable.
  • the latching arm is Z-shaped and ends as a C-shaped latching foot which is bent downward toward the plug.
  • the locking foot is easy to slide and ensures a good contact with the mating connector or the like if it ends as a 180 ° bent hook and thus forms a large radius.
  • the plug is designed with three teeth, the outer tines are mounted on the housing as holding arms and the middle tine serves as a locking arm, it is advantageous if the holding arms and the locking arm are angled differently and the angle of the holding arms is greater is than the angle of the locking arm. A longer lever arm can thus be achieved on the latching arms and the spring properties are optimized.
  • the arms can be bent so that a shape similar to the number eight results in the side view.
  • the detent spring can preferably be held in such a way that the holding arms end as bent back barbs which are mounted in the pockets of the housing with play.
  • the detent spring can be tilted well if the back, from which the holding arms and the detent arm extend, are bent towards the housing, so that a radius is formed.
  • the spring can then be operated either by hand or with the aid of a button or the like, see DE-A-31 23 825.
  • the detent spring can be stamped from rust-free spring sheet metal or from spring wire.
  • the basic idea of the invention can, however, be implemented with detent springs made from any semi-finished product.
  • Figure 1 shows an electrical connector 1 with a housing 2 made of plastic with two contact and line chambers 3, which are used to hold, if necessary, sealed contact parts, such as. B. sockets, serve.
  • a rubber-elastic seal 6 is inserted on the end face 4 in an annular space 5, and two caps 10 are formed on the top 7 or bottom 8 via a film hinge 9.
  • the caps 10 have four walls.
  • the rear wall 11 merges into the upper wall 12, which is connected to the housing 2 on the end face via the film hinge 9.
  • two side walls 13 adjoin, in which elongated holes 14 are made near the center.
  • the end faces of the pins 16 are provided with bevels 16a which extend in the direction of the caps 10.
  • the slot 14 is approximately parallel to the film hinge 9, so that the caps 10 can be pressed with a certain path from an initial position in the direction of the sides 7 and 8 of the housing 2, d. H. are pivotable about the resilient film hinge.
  • detent springs 17 are mounted under the caps 10.
  • the detent spring 17 is in principle shaped as a three-pronged symmetrical fork made of sheet metal, in particular of stainless spring steel, compare FIGS. 6 to 8.
  • the locking foot 22 ends as a hook 23 bent over 180 °, so that there is an approximately semicircular larger radius R6 .
  • the latching foot 22 itself is slightly curved in a C-shape with a large radius R7.
  • the detent springs 17 are inserted with their barbs 20 into pockets 24 on the top 7 or bottom 8 into the housing 2 so that they can move with a slight axial play X.
  • a passage 25 to the interior of the housing 2 is provided between the pockets 24.
  • a latching cam 26 with a latching surface 27 of a mating connector 28 can be inserted into the passage 25.
  • a stop surface 29 for the detent spring 17 is provided near the end face 4.
  • the surfaces 27 and 29 run approximately parallel: the surface 29 is at an angle of approximately 20 °, the surface 27 approximately 15 ° to the connector end surface 4.
  • the mating connector 28 In the locking position with the mating connector 28 shown in the upper half in FIG. 1, the mating connector 28 is supported on the seal 6 with an annular collar 30.
  • the locking spring 17 lies with the radius R6 of the locking foot 22 on the locking surface 27 and on the outer surface 31, i. H. at an angle of approx. 105 ° to the mating connector 28.
  • the latching foot 22 lies in the area of the radius R7 on the surface 29 of the housing 2. This arrangement allows any manufacturing tolerances to be well balanced so that a good sealing effect is ensured.
  • the detent spring 17 blocks the connection since it is supported mainly on the surface 29 on the housing 2, but also on the detent arm 21 on the top 7 and on the back 18, the holding arms 19 and the barbs 20 on the housing 2.
  • the caps 10 do not need to be charged.
  • the release position of the spring 17 is shown in Figure 4.
  • the locking arm 21 is pivoted by pressure P on the caps 10 in the area of the corrugation R, so that the locking foot 22 moves upward approximately along the surface 29.
  • the holding arms 19 and the locking arm 21 are supported in the region of the radius R4 on the top of the housing 2, see FIG. 1.
  • the mating connector 28 as in the example, the locking cam 26 also has an insertion bevel 32
  • the connectors 1 and 28 can be connected by simply pushing them together.
  • the latching foot 22 is raised by the insertion bevel 32 when it is pushed in, see FIG. 4, and then snaps behind the oblique latching surface 27 of the latching cam 26 after insertion and sealing, and after the electrical contact has been made, as shown in FIG.

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

Abstract

In order considerably to increase the resistance against inadvertent unlocking of a latch-spring (17) which can, in particular, be tilted, a stop surface (29) is arranged on the housing (2) of the plug (1), on which stop surface (29) the latch-spring (17) is supported in the interlock position by means of a latch foot (22). <IMAGE>

Description

Die Erfindung betrifft einen elektrischen Stecker, wie er im einzelnen z. B. aus der DE-A-39 16 863 bekannt ist. Dort dient ein gabelförmiges Federblech als Rastfeder. Die mittlere Zinke der Gabel ist an ihrem Rastarm mit einem Durchbruch versehen, Figur 3. Der Durchbruch weist einen Anschlaglappen auf, der mit einer Rastschulter eines Gegensteckers oder Gerätes zusammenwirken kann, vergleiche Figur 1. Über einen Handhabungsabschnitt kann die Rastfeder aus einer Verriegelungsstellung in eine Lösestellung geschwenkt oder gekippt werden.The invention relates to an electrical connector, as it is described in detail, for. B. is known from DE-A-39 16 863. There a fork-shaped spring plate serves as a detent spring. The middle prong of the fork is provided with an opening on its latching arm, FIG. 3. The opening has a stop tab which can interact with a latching shoulder of a mating connector or device, compare FIG Release position can be pivoted or tilted.

Aus der EP-A-0 351 083 ist ein Stecker ähnlicher Art bekannt. Dort dienen zwei kippbare Blattfedern zur Verriegelung. Ein Ende einer Blattfeder bildet einen hakenförmigen Rastfuß, der mit entsprechenden Rastmitteln am Gegenstecker zusammenwirken kann, vergleiche Figur 6.A plug of a similar type is known from EP-A-0 351 083. There are two tiltable leaf springs for locking. One end of a leaf spring forms a hook-shaped latching foot which can interact with corresponding latching means on the mating connector, see FIG. 6.

Ähnliche kippbare Rastfedern, jedoch aus Federdraht, sind aus der DE-C-35 31 925 bekannt.Similar tiltable detent springs, but made of spring wire, are known from DE-C-35 31 925.

Die bekannten Ausbildungen widerstehen auf die Steckverbinder einwirkenden Trenn- oder Zugkräfte nur so lange, bis der frei nach außen bewegliche Verriegelungsabschnitt am Ende der Rastfeder doch aus seiner Verriegelungsstellung nach außen herausgedrückt wird, wodurch die Rastnocke oder dergleichen am Gegenstecker oder Gerät freigegeben wird.The known designs withstand the separating or tensile forces acting on the plug-in connector only until the freely movable locking section at the end of the detent spring is pushed out of its locking position to the outside, thereby releasing the detent cam or the like on the mating connector or device.

Der Erfindung liegt das Bestreben zugrunde, einen elektrischen Stecker der eingangs genannten Art zu schaffen, bei dem äußeren Trennkräften ein sehr hoher Widerstand gegen eine Entriegelung entgegengesetzt wird.The invention is based on the endeavor to create an electrical connector of the type mentioned at the outset, in which a very high resistance to unlocking is opposed by external separating forces.

Hierzu sieht die Erfindung vor, daß am Gehäuse eine Anschlagfläche angeordnet ist, an der sich die Rastfeder mit einem Rastfuß in der Verriegelungsstellung, etwa in Richtung auf den Gegenstecker oder dergleichen, abstützt. Dadurch ist sichergestellt, daß beim Einwirken von axialen Trennkräften, welche die elektrische Steckverbindung lösen wollen, der Rastfuß der Rastfeder nicht nach außen in die Lösestellung gedrückt werden kann. Folglich können außerordentlich hohe Trennkräfte auf die mechanische Verriegelung des Steckers einwirken, ohne daß die Rastfeder ihre Funktionstüchtigkeit verliert.For this purpose, the invention provides that a stop surface is arranged on the housing, on which the detent spring is supported with a detent foot in the locking position, for example in the direction of the mating connector or the like. This ensures that the action of axial separating forces that want to release the electrical connector, the locking foot of the detent spring can not be pressed out into the release position. Consequently, extremely high separating forces can act on the mechanical locking of the plug without the detent spring losing its functionality.

Die Erfindung ist sowohl bei Rastfedern aus Federblech, als auch aus Federdraht anwendbar. Letztendlich kommt es darauf an, daß dem nach außen verschiebbaren oder verschwenkbaren Rastfuß der Rastfeder eine Anschlagfläche am Gehäuse des Steckers zugeordnet ist, die den Rastfuß daran hindert, sich unter der axialen Lösekraft nach außen zu bewegen und dadurch die Verrastung zu lösen.The invention can be used both with detent springs made from spring sheet metal and from spring wire. Ultimately, it is important that the stop spring of the catch spring, which is displaceable or pivotable, is assigned a stop surface on the housing of the plug, which prevents the catch foot from moving outwards under the axial release force and thereby releasing the catch.

Die Anordnung und der Verlauf der Anschlagfläche ist abhängig von der Anordnung und Form der Rastfeder. Die Anschlagfläche wird in der Regel etwa senkrecht zur Steckrichtung verlaufen. Je nachdem wie die entsprechende Rastfläche oder Rastnocke oder dergleichen am Gegenstecker oder Gerät ausgebildet ist, kann die Anschlagfläche auch von dieser Richtung abweichen und z. B. bis etwa 45° zur Steckrichtung verlaufen.The arrangement and the course of the stop surface depends on the arrangement and shape of the detent spring. The stop surface will generally run approximately perpendicular to the direction of insertion. Depending on how the corresponding locking surface or locking cam or the like is formed on the mating connector or device, the stop surface can also deviate from this direction and z. B. extend up to about 45 ° to the direction of insertion.

Rastfläche und Anschlagfläche sollten mindestens nahezu parallel verlaufen, um eine optimale Wirkung zu erzielen. Abweichungen von ca. 15° scheinen tolerierbar zu sein.The locking surface and the stop surface should run at least almost parallel to achieve an optimal effect. Deviations of approx. 15 ° appear to be tolerable.

Als vorteilhaft hat sich für die Rast- und Lösefunktion erwiesen, wenn der Rastarm Z-förmig ausgebildet ist und als C-förmig nach unten zum Stecker hin gebogener Rastfuß endet.It has proven to be advantageous for the latching and releasing function if the latching arm is Z-shaped and ends as a C-shaped latching foot which is bent downward toward the plug.

Der Rastfuß ist gut gleitfähig zu führen und sorgt für eine gute Anlage am Gegenstecker oder dergleichen, wenn er als 180° umgebogener Haken endet und somit einen großen Radius bildet.The locking foot is easy to slide and ensures a good contact with the mating connector or the like if it ends as a 180 ° bent hook and thus forms a large radius.

Wenn der Stecker, wie aus Blech schon bekannt, dreizinkig ausgebildet ist, die äußeren Zinken als Haltearme am Gehäuse gelagert sind und die mittlere Zinke als Rastarm dient, ist es vorteilhaft, wenn die Haltearme und der Rastarm unterschiedlich abgewinkelt sind und der Winkel der Haltearme größer ist als der Winkel des Rastarms. Damit ist ein längerer Hebelarm an den Rastarmen erzielbar, und die Federeigenschaften werden optimiert. Zum gleichen Zweck können die Arme so gebogen sein, daß sich in der Seitenansicht eine der Zahl Acht ähnliche Form ergibt.If, as is already known from sheet metal, the plug is designed with three teeth, the outer tines are mounted on the housing as holding arms and the middle tine serves as a locking arm, it is advantageous if the holding arms and the locking arm are angled differently and the angle of the holding arms is greater is than the angle of the locking arm. A longer lever arm can thus be achieved on the latching arms and the spring properties are optimized. For the same purpose, the arms can be bent so that a shape similar to the number eight results in the side view.

Die Halterung der Rastfeder kann vorzugsweise so erfolgen, daß die Haltearme als zurückgebogene Widerhaken enden, die in Taschen des Gehäuses mit Spiel gelagert sind.The detent spring can preferably be held in such a way that the holding arms end as bent back barbs which are mounted in the pockets of the housing with play.

Die Rastfeder kann gut gekippt werden, wenn der Rücken, von dem aus die Haltearme und der Rastarm ausgehen, zum Gehäuse zu abgebogen sind, so daß ein Radius gebildet ist. Die Feder kann dann entweder von Hand oder mit Hilfe einer Taste oder dergleichen betätigt werden, vergleiche DE-A-31 23 825.The detent spring can be tilted well if the back, from which the holding arms and the detent arm extend, are bent towards the housing, so that a radius is formed. The spring can then be operated either by hand or with the aid of a button or the like, see DE-A-31 23 825.

Die Rastfeder kann aus rostfreiem Federblech gestanzt oder aus Federdraht sein. Insbesondere der Grundgedanke der Erfindung ist jedoch bei Rastfedern aus beliebigem Halbzeug realisierbar.The detent spring can be stamped from rust-free spring sheet metal or from spring wire. In particular, the basic idea of the invention can, however, be implemented with detent springs made from any semi-finished product.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt, das im nachfolgenden näher beschrieben wird.

Figur 1
zeigt einen zweipoligen elektrischen Stecker mit zwei Rastfedern im mittigen Schnitt, ohne elektrische Kontaktteile und daran befestigten Leitungen, mit einer oberen, geschlossenen Kappe und einer unteren, geöffneten Kappe, mit angedeuteter Verriegelung mit einem Gegenstecker.
Figur 2
zeigt den Stecker nach Figur 1 von rechts.
Figur 3
zeigt den Stecker nach Figur 1 von links.
Figur 4
zeigt den Stecker nach Figur 1 während des Einführens oder Lösens eines Gegensteckers.
Figur 5
zeigt den Stecker nach Figur 1 mit Schnitt durch den Bereich der Befestigung der Rastfeder, während des Einführens oder Lösens eines Gegensteckers.
Figur 6
zeigt die Rastfeder in der Draufsicht.
Figur 7
zeigt die Rastfeder nach Figur 6 in der Seitenansicht.
Figur 8
zeigt die Rastfeder nach Figur 6 im mittigen Schnitt.
In the drawing, an embodiment of the invention is shown, which is described in more detail below.
Figure 1
shows a two-pin electrical connector with two detent springs in the central section, without electrical contact parts and cables attached to it, with an upper, closed cap and a lower, open cap, with indicated locking with a mating connector.
Figure 2
shows the connector of Figure 1 from the right.
Figure 3
shows the connector of Figure 1 from the left.
Figure 4
shows the plug of Figure 1 during insertion or removal of a mating connector.
Figure 5
shows the connector of Figure 1 with a section through the area of attachment of the detent spring, during insertion or removal of a mating connector.
Figure 6
shows the detent spring in plan view.
Figure 7
shows the detent spring of Figure 6 in side view.
Figure 8
shows the detent spring according to Figure 6 in the central section.

Figur 1 zeigt einen elektrischen Stecker 1 mit einem Gehäuse 2 aus Kunststoff mit zwei Kontakt- und Leitungskammern 3, die zur Aufnahme von nicht dargestellten, gegebenenfalls abgedichteten Kontaktteilen, wie z. B. Buchsen, dienen. An der Stirnseite 4 ist in einem Ringraum 5 eine gummielastische Dichtung 6 eingelegt, und an der Oberseite 7 bzw. Unterseite 8 sind über ein Filmscharnier 9 zwei Kappen 10 angeformt.Figure 1 shows an electrical connector 1 with a housing 2 made of plastic with two contact and line chambers 3, which are used to hold, if necessary, sealed contact parts, such as. B. sockets, serve. A rubber-elastic seal 6 is inserted on the end face 4 in an annular space 5, and two caps 10 are formed on the top 7 or bottom 8 via a film hinge 9.

Die Kappen 10 weisen vier Wände auf. Die hintere Wand 11 geht in die obere Wand 12 über, die über das Filmscharnier 9 stirnseitig mit dem Gehäuse 2 verbunden ist. Gleichzeitig schließen sich zwei Seitenwände 13 an, in denen nahe der Mitte Langlöcher 14 eingebracht sind. Außen ist im Bereich zwischen den Wänden 11 und 12 eine Querriffelung R angebracht.The caps 10 have four walls. The rear wall 11 merges into the upper wall 12, which is connected to the housing 2 on the end face via the film hinge 9. At the same time, two side walls 13 adjoin, in which elongated holes 14 are made near the center. On the outside in the area between the walls 11 and 12 there is a transverse corrugation R.

An den Gehäuseseiten 15 befinden sich Zapfen 16, die bei heruntergeschwenkter Kappe 10 in die Langlöcher 14 eingreifen können und somit kulissenartige Führungen bilden. Zum erleichterten Verschwenken der Kappen 10 über die Zapfen 16 sind die Stirnflächen der Zapfen 16 mit Abschrägungen 16a versehen, die in Richtung der Kappen 10 verlaufen. Das Langloch 14 liegt etwa parallel zum Filmscharnier 9, so daß die Kappen 10 mit einem bestimmten Weg aus einer Ausgangsstellung in Richtung auf die Seiten 7 bzw. 8 des Gehäuses 2 hin drückbar, d. h. um das federnde Filmscharnier verschwenkbar, sind.On the housing sides 15 there are pins 16 which, when the cap 10 is pivoted down, can engage in the elongated holes 14 and thus form guide-like guides. To facilitate pivoting of the caps 10 over the pins 16, the end faces of the pins 16 are provided with bevels 16a which extend in the direction of the caps 10. The slot 14 is approximately parallel to the film hinge 9, so that the caps 10 can be pressed with a certain path from an initial position in the direction of the sides 7 and 8 of the housing 2, d. H. are pivotable about the resilient film hinge.

Unter den Kappen 10 sind identische Rastfedern 17 gelagert. Die Rastfeder 17 ist im Prinzip als dreizinkige symmetrische Gabel aus Blech, insbesondere aus rostfreiem Federstahl, geformt, vergleiche Figuren 6 bis 8.Identical detent springs 17 are mounted under the caps 10. The detent spring 17 is in principle shaped as a three-pronged symmetrical fork made of sheet metal, in particular of stainless spring steel, compare FIGS. 6 to 8.

Ausgehend von einem mit dem Radius R1 gewölbten Rücken 18 erstrecken sich zwei relativ schmale äußere Haltearme 19 unter einen Winkel Alpha = 120° mit einem Radius R2 und enden mit einem über einen Radius R3 zurückgebogenen Widerhaken 20. Die mittlere Gabelzinke erstreckt sich vom Rücken 18 ausgehend als Rastarm 21 über einen Radius R4 unter einen Winkel von Beta = 90° und endet über einen Radius R5 mit einem entgegengesetzt gebogenen Rastfuß 22. Der Rastfuß 22 endet als um 180° umgebogener Haken 23, so daß sich ein etwa halbkreisförmiger größerer Radius R6 ergibt. Der Rastfuß 22 selber ist mit großem Radius R7 leicht C-förmig gebogen.Starting from a back 18 arched with the radius R1, two relatively narrow outer holding arms 19 extend at an angle alpha = 120 ° with a radius R2 and end with a barb 20 bent back over a radius R3. The middle fork prong extends from the back 18 as a locking arm 21 over a radius R4 at an angle of beta = 90 ° and ends over a radius R5 with an oppositely curved locking foot 22. The locking foot 22 ends as a hook 23 bent over 180 °, so that there is an approximately semicircular larger radius R6 . The latching foot 22 itself is slightly curved in a C-shape with a large radius R7.

Die Rastfedern 17 sind mit ihren Widerhaken 20 in Taschen 24 an der Oberseite 7 bzw. Unterseite 8 verrastend in das Gehäuse 2 eingeschoben, so daß sie sich mit leichtem axialen Spiel X bewegen können. Zwischen den Taschen 24 ist ein Durchgang 25 zum Inneren des Gehäuses 2 angebracht.The detent springs 17 are inserted with their barbs 20 into pockets 24 on the top 7 or bottom 8 into the housing 2 so that they can move with a slight axial play X. A passage 25 to the interior of the housing 2 is provided between the pockets 24.

In den Durchgang 25 ist eine Rastnocke 26 mit einer Rastfläche 27 eines Gegensteckers 28 einführbar. Oberhalb des Durchgangs 25 ist nahe der Stirnseite 4 eine Anschlagfläche 29 für die Rastfeder 17 vorgesehen. Die Flächen 27 und 29 verlaufen etwa parallel: Die Fläche 29 steht im Winkel von etwa 20°, die Fläche 27 etwa 15° zur Steckerstirnfläche 4.A latching cam 26 with a latching surface 27 of a mating connector 28 can be inserted into the passage 25. Above the passage 25, a stop surface 29 for the detent spring 17 is provided near the end face 4. The surfaces 27 and 29 run approximately parallel: the surface 29 is at an angle of approximately 20 °, the surface 27 approximately 15 ° to the connector end surface 4.

In der in Figur 1 in der oberen Hälfte gezeigten Verriegelungsstellung mit dem Gegenstecker 28 stützt sich der Gegenstecker 28 mit einem Ringbund 30 an der Dichtung 6 ab. Die Rastfeder 17 liegt mit dem Radius R6 des Rastfußes 22 an der Rastfläche 27 und an der Außenfläche 31, d. h. unter einem Winkel von ca. 105°, des Gegensteckers 28 an. Desweiteren liegt der Rastfuß 22 im Breich des Radius R7 an der Fläche 29 des Gehäuses 2 an. Durch diese Anordnung werden eventuelle Fertigungstoleranzen gut ausgeglichen, so daß eine gute Abdichtwirkung sichergestellt ist.In the locking position with the mating connector 28 shown in the upper half in FIG. 1, the mating connector 28 is supported on the seal 6 with an annular collar 30. The locking spring 17 lies with the radius R6 of the locking foot 22 on the locking surface 27 and on the outer surface 31, i. H. at an angle of approx. 105 ° to the mating connector 28. Furthermore, the latching foot 22 lies in the area of the radius R7 on the surface 29 of the housing 2. This arrangement allows any manufacturing tolerances to be well balanced so that a good sealing effect is ensured.

Die Rastfeder 17 sperrt die Verbindung, da sie sich hauptsächlich über die Fläche 29 am Gehäuse 2 abstützt, aber auch über den Rastarm 21 auf der Oberseite 7 und über den Rücken 18, die Haltearme 19 und die Widerhaken 20 am Gehäuse 2. Die Kappen 10 brauchen dabei nicht belastet zu werden.The detent spring 17 blocks the connection since it is supported mainly on the surface 29 on the housing 2, but also on the detent arm 21 on the top 7 and on the back 18, the holding arms 19 and the barbs 20 on the housing 2. The caps 10 do not need to be charged.

Die Lösestellung der Feder 17 ist in Figur 4 dargestellt. Durch Druck P auf die Kappen 10 im Breich der Riffelung R wird der Rastarm 21 verschwenkt, so daß der Rastfuß 22 etwa entlang der Fläche 29 sich nach oben bewegt. Hierbei stützen sich die Haltearme 19 und der Rastarm 21 im Bereich des Radius R4 auf die Oberseite des Gehäuses 2, vergleiche Figur 1, ab.The release position of the spring 17 is shown in Figure 4. The locking arm 21 is pivoted by pressure P on the caps 10 in the area of the corrugation R, so that the locking foot 22 moves upward approximately along the surface 29. Here, the holding arms 19 and the locking arm 21 are supported in the region of the radius R4 on the top of the housing 2, see FIG. 1.

Wenn der Rastfuß 22 aus dem Durchgang 25 ausgetreten ist, vergleiche Figur 4, kann der Gegenstecker 28 entnommen werden, da dessen Rastfläche 27 nun freiliegt.When the latching foot 22 has emerged from the passage 25, see FIG. 4, the mating connector 28 can be removed, since its latching surface 27 is now exposed.

Beim Herstellen der Verbindung kann entsprechend verfahren werden. Wenn jedoch der Gegenstecker 28, wie im Beispiel, der Rastnocken 26 auch eine Einführungsschräge 32 aufweist, kann die Verbindung der Stecker 1 und 28 durch bloßes Zusammenschieben erfolgen. Der Rastfuß 22 wird beim Einschieben durch die Einführungsschräge 32 angehoben, vergleiche Figur 4, und schnappt dann nach dem Einführen und Abdichten - und nachdem die elektrische Kontaktierung erfolgte - hinter die schräge Rastfläche 27 der Rastnocke 26, wie in Figur 1 dargestellt.The same procedure can be followed when establishing the connection. However, if the mating connector 28, as in the example, the locking cam 26 also has an insertion bevel 32, the connectors 1 and 28 can be connected by simply pushing them together. The latching foot 22 is raised by the insertion bevel 32 when it is pushed in, see FIG. 4, and then snaps behind the oblique latching surface 27 of the latching cam 26 after insertion and sealing, and after the electrical contact has been made, as shown in FIG.

BezugszeichenlisteReference list

Figure imgb0001
Figure imgb0001

Claims (10)

  1. An electrical plug,
    - connectable electrically to a counter connector (28), appliance or the like and lockable mechanically,
    - and having at least one catch spring (17),
    - with an angled catch arm (21),
    - which can engage with a catch foot (22) behind a projection (26) or in a recess in the counter connector or the like,
    - and the catch spring (17) is mounted on the casing (2) of the connector (1) in such a way that the catch foot (22) is movable out of the locking position into an unlocking position by pressure upon the free end of the catch arm,
    characterized in that a stop face (29) is provided on the casing (2) of the connector (1), the catch spring (17) being supported by the catch foot (22) on the stop face (29) in the locking position, approximately in the direction towards the counter connector or the like.
  2. A connector according to Claim 1, characterized in that the stop face (29) extends at from 60 to 90° to the direction of insertion.
  3. A connector according to Claim 2, characterized in that the stop face (29) extends at least approximately parallel to the catch face of the counter connector and the like.
  4. A connector according to one of Claims 1 to 3, characterized in that the catch arm (21) is Z-shaped, and terminates as a catch foot (22) bent downwards towards the casing (2) in a C-shape. (Fig. 1).
  5. A connector according to one of Claims 1 to 4, characterized in that the catch foot (22) terminates as a hook (23) bent over by 180°.
  6. A connector according to one of Claims 1 to 5, wherein the catch spring is formed with three prongs, the outer prongs being mounted on the casing (2) as holding arms (19) and the middle prong acting as a catch arm (21), characterized in that the holding arms (19) and the catch arm (21) are angled differently, and the angle of the holding arms (19) is greater than the angle of the catch arm (21).
  7. A connector according to Claim 6, characterized in that the catch spring (17) has a shape similar to the figure eight in the lateral elevation. (Fig. 1).
  8. A connector according to Claim 6 or 7, characterized in that the holding arms (19) terminate as bent-back barbs mounted in pockets (24) in the casing (2) with a clearance (X).
  9. A connector according to one of Claims 6 to 8, characterized in that the back (18), from which the holding arms (19) and the catch arm (21) start, is bent towards the casing (2), so as to produce a radius (R1).
  10. A connector according to one of Claims 1 to 9, characterized in that the catch springs (17) are punched from stainless spring steel sheet or are bent from spring wire.
EP93103724A 1992-03-21 1993-03-09 Electrical connector with mechanical interlock by means of a latch-spring Expired - Lifetime EP0562347B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4209252A DE4209252C1 (en) 1992-03-21 1992-03-21
DE4209252 1992-03-21

Publications (2)

Publication Number Publication Date
EP0562347A1 EP0562347A1 (en) 1993-09-29
EP0562347B1 true EP0562347B1 (en) 1995-07-19

Family

ID=6454712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93103724A Expired - Lifetime EP0562347B1 (en) 1992-03-21 1993-03-09 Electrical connector with mechanical interlock by means of a latch-spring

Country Status (4)

Country Link
EP (1) EP0562347B1 (en)
AT (1) ATE125397T1 (en)
DE (2) DE4209252C1 (en)
ES (1) ES2076802T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010038266B4 (en) * 2010-10-19 2013-05-23 Harting Electric Gmbh & Co. Kg Multi-part connector housing
DE102012009309B4 (en) 2012-05-10 2014-07-31 Farbod Mahdjour Universal locking device for a plug-in device and method for the locking device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB773619A (en) * 1954-08-13 1957-05-01 Horatio Henry Burtt Locking mechanism for electrical plug and socket connectors
US3544951A (en) * 1968-06-28 1970-12-01 Deutsch Co Elec Comp Coupling with deflectable arms
GB2075769B (en) * 1980-05-07 1984-03-07 Lucas Industries Ltd Electrical connectors
DE3123825A1 (en) * 1981-06-16 1983-01-05 Robert Bosch Gmbh, 7000 Stuttgart Electrical plug connection
DE3531925A1 (en) * 1985-09-07 1987-03-19 Reinshagen Kabelwerk Gmbh LOCKABLE ELECTRICAL CONNECTOR
JPH0817102B2 (en) * 1988-07-15 1996-02-21 日本エー・エム・ピー株式会社 Electrical connector
DE3916863A1 (en) * 1989-05-24 1990-11-29 Bosch Gmbh Robert LOCKABLE ELECTRICAL CONNECTOR

Also Published As

Publication number Publication date
EP0562347A1 (en) 1993-09-29
DE4209252C1 (en) 1993-03-04
ES2076802T3 (en) 1995-11-01
ATE125397T1 (en) 1995-08-15
DE59300364D1 (en) 1995-08-24

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