EP1764875B1 - Electrical connector with preloaded contacts blades - Google Patents

Electrical connector with preloaded contacts blades Download PDF

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Publication number
EP1764875B1
EP1764875B1 EP06119992A EP06119992A EP1764875B1 EP 1764875 B1 EP1764875 B1 EP 1764875B1 EP 06119992 A EP06119992 A EP 06119992A EP 06119992 A EP06119992 A EP 06119992A EP 1764875 B1 EP1764875 B1 EP 1764875B1
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EP
European Patent Office
Prior art keywords
contact
laminates
spreading element
plug connector
contact pin
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.)
Not-in-force
Application number
EP06119992A
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German (de)
French (fr)
Other versions
EP1764875A1 (en
Inventor
Eckhardt Philipp
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.)
Robert Bosch GmbH
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Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1764875A1 publication Critical patent/EP1764875A1/en
Application granted granted Critical
Publication of EP1764875B1 publication Critical patent/EP1764875B1/en
Not-in-force 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
    • H01R13/02—Contact members
    • H01R13/193—Means for increasing contact pressure at the end of engagement of coupling part, e.g. zero insertion force or no friction
    • 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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • 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
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/18—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with the spring member surrounding the socket
    • 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
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket

Definitions

  • the invention relates to an electrical connector with a provided for inserting an electrically conductive contact pin plug receptacle according to the preamble of claim 1, such a connector is made EP-0 087 894 known.
  • the advantage of a large Kunststoffgaps set in this way is that the high frictional force at the beginning of the plug-in process (Aufschnäbel peak in the insertion force-path diagram) is significantly reduced because the contact blades and the contact pin only immediately meet in front of the parallel region of the contact pin, ie in a region in which the slip angle - based on the friction forces - are cheaper. Furthermore, the probability of back-insertion of the contact blades is reduced by a large contact gap.
  • the abutments for the prestressing are rigid elements of the steel coil spring, which limit the spring movement of the contact blades in the inserted state on one side. Due to the tight tolerances of such spring systems there is a risk that the contact force is not fully achieved or that the contact pin is contacted only on one side.
  • the connector according to the invention with the features of claim 1 has the advantage that the contact blades can operate in the plugged state over their entire spring range without a reduction in the contact force. Only then, when the contact pin has smoothly covered a path between the spaced-apart contact blades, they engage with him, and there are only sliding friction forces without Aufschnäbel peak effective.
  • Such a connector can be manufactured to very close tolerances because it is mainly stamping-bending processes, and the precision of these processes defines the gap dimension.
  • the contact force is supported by an additional force of the pressure spring in the inserted state.
  • an electrical connector 1 has a main body 3 , which is to be connected at one end by a crimping region 5 to an electrical connection cable 4 .
  • a plug-in receptacle 7 is present. Parallel to the drawing plane of the Fig. 1 extending flat side walls 8 of the base body 3.
  • a contact pin insert 9 the cross-section either round or, as here preferably provided and is flat.
  • the base body 3 is made of sheet metal, in the example steel, and by punching and bending.
  • contact blades 11 by 12 wide slits were cut and cut free and formed by bending.
  • the contact blades 11 originate approximately halfway along the base body 3 and extend in the direction of the contact pin 9 to be inserted.
  • the contact blades 11 define two mutually perpendicular to the side walls 8 extending opposite sides of the plug-in receptacle 7, which are arbitrarily referred to as the top and bottom.
  • the connector 1 is expediently delivered by the manufacturer in the initial state, possibly without crimped connecting cable 4.
  • an expansion element 13 which is an integral part of a pressure spring 15 in the example.
  • the expansion element 13 is essentially a resiliently deformable plate 16, the two contact blades 11 facing end portions are thickened in a central region by a bend 17 and there edges 18 (FIG. Figure 6 ) for engagement with a respective latch 19 ( Fig. 5 ) to have.
  • the detents 19 are arranged at the mutually facing inner surfaces of the contact blades 11 at a suitable location (with respect to the spreading force to be exerted and the distance to be generated between the contact points of the contact blades 11); in the example, the detents 19 are approximately one third of the length of the contact blades 11, calculated from the side of the crimping 5 ago, and are formed by bead-like embossments.
  • the plate 16 is convexly curved in the example to the socket 7. In addition, in the example, this is a biased state of the plate 16, and in the relaxed state, it is opposite (concave) arched.
  • the information regarding the direction of the curvature in the initial state and in the relaxed state are considered advantageous in the exemplary embodiment, but are not mandatory.
  • the plate curvature according to Fig. 1 sets first the contact pin 9 impinging on the plate 16 during mating, on the one hand, with a relatively large resistance. It must first be pressed this convex curvature (approximately similar to overcoming the top dead center of a knee joint gear) so that it can be converted into a concave curvature and the plate 16 can get out of the notches 19 out.
  • the stronger the convex curvature that is, the smaller the radius of curvature is), the greater is the force to be exerted by the contact pin 9 first.
  • the tendency of the plate 16 to assume the relaxed state facilitates the deformation of the plate 16 by the Kunststoffpin 9.
  • the pressure spring 15 in addition to the described plate 16 in one piece with this connected leg 22 of elastic material, which further forward, in Fig. 1 to the left, extend.
  • the legs 22 have at right angles to the image plane of Fig. 1 a distance from the angled portions 17 and therefore depending on the bending state of the pressure spring 15 at different angles relative to the angled portions 17.
  • the legs 22 can ensure without the yet to be described further function that the plate 16 after unlocking not or only limited loose in the body 3 can move.
  • the legs 22 have been widely spread when mounting the plug-in device for the first use.
  • the pressure spring 15 was stretched very elastic, especially in the area of the plate 16, which is a yoke or a base in the view of Fig.
  • the arrangement is such that the contact pin 9 is then prevented by a stop, not shown, to further movement when the webs 27 are located above the contact blades 29 of the contact blades 11; then they cause an amplification of the contact normal force generated by the contact blades 11.
  • the webs 27 come after unlocking the plate 16 by the force of the pressure spring 15 automatically to the recessed location outside of the contact blades 11.
  • each arm 26 could be in other embodiments by means Press a lateral projection on it on the contact blade 11.
  • the arrangement is in any case such that the support and the position of the front end of the contact blades 11 do not inhibit the displacement of the pressure spring 15 undesirable.
  • the contact blades 11 and the latch are cut with the yoke of the pressure spring 15; a leg 22 of the pressure spring 15 is in view, partially hidden, visible. Seen in the insertion direction of the contact pins 9, the connector 1 is approximately rectangular.
  • the exemplary embodiment shown has, inter alia, the following functions and properties:
  • the pressure spring 15 is designed as a wide and U-shaped bent spring steel clip.
  • the base 16 of the U-shaped pressure spring 15 is made massive; it takes over the spreading function for the contact blades 11 during the insertion phase of the contact pin 9.
  • the base 16 takes over the main work of the inward spring action during the contacting.
  • the corresponding notches 19 are provided on the inside of the contact blades 11 for the edges 18 of the An horrfederbasis 16.
  • the free legs 22 of the U-shaped pressure spring 15 are provided with wide windows 25; through this, the contact blades 11 can penetrate from the outside, so that they are compressed in the Kunststoffierphase from the outer tips (pressure surfaces 23) of the free legs 22 at the level of the contact points or contact blades 29 from the outside. As delivered and during the first phase of the insertion process these pressure surfaces 23 of the free Antikfederschenkel 22 rest on rigid abutments 24 of the Kunststoffmaul Kunststoffes (input opening of the plug-in receptacle), without touching the contact blades 11. Any elastic deformation of the arms 26 is not shown.
  • the contact blades 11 and the pressure spring 15 in the delivery condition it is possible to realize for the Clearsteckung so far biased Kunststoffgap that allows a force-free insertion of the contact pins 9 to far between the contact tips 29.
  • Fig. 3 shows the end position of the pushed by the contact pin 9 to the rear pressure spring 15th
  • Fig. 4a to Fig.4c show one in Fig. 4a across from Fig. 1 until slightly over the contact tips 29 further frictionless advanced contact pin 9.
  • Fig. 4b has the contact pin 9
  • the plate 16 is deformed from convex to concave and the entire pressure spring 15 so far moved back that the end portions 23 of the arms 26 are resiliently supported on the contact blades 11 outside.
  • the contact pin 9 has moved a little further back. In this case, the end portions 23 are slipped to the lowest point of the outside of the contact blades 11 due to spring force and now press exactly in the contact region of the contact tips 29 from the outside to the contact blades 11th
  • Fig. 5 shows for illustrative purposes the completely relaxed position of the contact blades 11.
  • the contact blades 29 almost touch each other.
  • no pressure spring has been installed in the main body 3 for demonstration in a sample.
  • Fig. 6 and Fig. 7 show the pressure spring 15 in a non-installed completely relaxed state.
  • the end portion 23 of the two webs 27 have a small distance.
  • the compression spring is to abut against the support surfaces 24 of the base body 3, it is slightly bent.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The plug connector (1) has a plug holder (7) for inserting an electrically conducting contact pin (9) with contact lamellas (11) biased towards each other and extending from a base opposite to the plug-in direction of the contact pin so as to enclose the top and bottom of the plug holder in an initial state in which they are ready for insertion and a spreading element (13).

Description

Stand der TechnikState of the art

Die Erfindung betrifft einen elektrischen Steckverbinder mit einer zum Einführen eines elektrisch leitenden Kontaktpins vorgesehenen Steckaufnahme gemäß den Oberbegriff des Anspruches 1, ein derartiger Steckverbinder ist aus EP-0 087 894 bekannt.The invention relates to an electrical connector with a provided for inserting an electrically conductive contact pin plug receptacle according to the preamble of claim 1, such a connector is made EP-0 087 894 known.

Derzeit sind im Automotivebereich Kontaktsysteme bekannt, bei denen Kontaktlamellen in einem vorgespannten Zustand für das Zusammenstecken mit dem Kontaktpin bereit stehen. Diese Vorspannung wird dadurch erreicht, dass die Kontaktlamellen bewusst aus einem zunächst überbogenen Zustand zurück gebogen werden und in dieser neuen Lage durch starre Widerlager an einer Stahlüberfeder abgestützt werden. Durch die Vorspannung der Kontaktlamellen soll ein großes Kontaktgap eingestellt werden, ohne die im gesteckten Zustand wirksamen Kontaktnormalkräfte zu senken, die durch den Vorverbiegungszustand der Kontaktlamellen im unbelasteten Zustand definiert werden. Der Vorteil eines auf diese Weise eingestellten großen Kontaktgaps liegt darin, dass die hohe Reibkraft zu Beginn des Steckvorgangs (Aufschnäbel-Peak im Steckkraft-Weg-Diagramm) erheblich reduziert wird, da die Kontaktlamellen und der Kontaktpin erst unmittelbar vor dem parallelen Bereich des Kontaktpins aufeinander treffen, also in einem Bereich, in dem die Gleitwinkel - bezogen auf die Reibkräfte - günstiger sind. Weiterhin wird durch ein großes Kontaktgap die Wahrscheinlichkeit einer Hintersteckung der Kontaktlamellen reduziert. Bei bekannten Kontaktsystemen mit vorgespannten Kontaktlamellen handelt es sich bei den Widerlagern für die Vorspannung um starre Elemente der Stahlüberfeder, die die Federbewegung der Kontaktlamellen auch im gesteckten Zustand einseitig begrenzen. Aufgrund der engen Toleranzen solcher Federsysteme besteht die Gefahr, dass die Kontaktkraft nicht vollständig erreicht wird bzw. dass der Kontaktpin nur einseitig kontaktiert wird.Contact systems are currently known in the automotive industry, in which contact blades are ready in a biased state for mating with the contact pin. This bias is achieved in that the contact blades are deliberately bent back from an initially over-arched state and are supported in this new position by rigid abutment on a Stahlüberfeder. By the bias of the contact blades, a large Kontaktgap to be set without lowering the effective in the mated state contact normal forces, which are defined by the Vorverbiegungszustand the contact blades in the unloaded state. The advantage of a large Kontaktgaps set in this way is that the high frictional force at the beginning of the plug-in process (Aufschnäbel peak in the insertion force-path diagram) is significantly reduced because the contact blades and the contact pin only immediately meet in front of the parallel region of the contact pin, ie in a region in which the slip angle - based on the friction forces - are cheaper. Furthermore, the probability of back-insertion of the contact blades is reduced by a large contact gap. In known contact systems with prestressed contact blades, the abutments for the prestressing are rigid elements of the steel coil spring, which limit the spring movement of the contact blades in the inserted state on one side. Due to the tight tolerances of such spring systems there is a risk that the contact force is not fully achieved or that the contact pin is contacted only on one side.

Vorteile der ErfindungAdvantages of the invention

Der erfindungsgemäße Steckverbinder mit den Merkmalen des Patentanspruchs 1 hat demgegenüber den Vorteil, dass die Kontaktlamellen im aufgesteckten Zustand über ihren gesamten Federbereich ohne eine Verringerung der Kontaktkraft arbeiten können. Erst dann, wenn der Kontaktpin einen Weg zwischen den voneinander beabstandeten Kontaktlamellen reibungslos zurückgelegt hat, kommen diese mit ihm in Eingriff, und es sind nur Gleitreibungskräfte ohne Aufschnäbel-Peak wirksam. Ein solcher Steckverbinder lässt sich in sehr engen Toleranzen fertigen, weil es sich hauptsächlich um Stanz-Biege-Prozesse handelt, und die Präzision dieser Prozesse das Gap-Maß definiert.The connector according to the invention with the features of claim 1 has the advantage that the contact blades can operate in the plugged state over their entire spring range without a reduction in the contact force. Only then, when the contact pin has smoothly covered a path between the spaced-apart contact blades, they engage with him, and there are only sliding friction forces without Aufschnäbel peak effective. Such a connector can be manufactured to very close tolerances because it is mainly stamping-bending processes, and the precision of these processes defines the gap dimension.

Bei der Ausführungsform nach Anspruch 8 wird im gesteckten Zustand die Kontaktkraft durch eine zusätzliche Kraft der Andruckfeder unterstützt.In the embodiment according to claim 8, the contact force is supported by an additional force of the pressure spring in the inserted state.

Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstands der Erfindung sind der Beschreibung, der Zeichnung und den Ansprüchen entnehmbar.Further advantages and advantageous embodiments of the subject invention are the description, the drawings and claims removed.

Zeichnungdrawing

Ein Ausführungsbeispiel des erfindungsgemäßen Steckverbinders ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:

Fig. 1
einen Längsschnitt durch den Steckverbinder im Ausgangszustand;
Fig. 2
eine Draufsicht in Richtung des Pfeils II in Fig. 1;
Fig. 3
in einer der Fig. 2 entsprechenden Ansicht (aber Crimpbereich nicht gezeigt) die Position der Andruckfeder bei vollständig eingeschobenem Kontaktpin;
Fign. 4a-4c
der Fig. 1 entsprechende Darstellungen des Steckverbinders bei unterschiedlich weit eingeschobenem Kontaktpin;
Fig. 5
einen Längsschnitt des Steckverbinders ohne Kontaktpin bei nicht vorhandener Andruckfeder (fiktiv, nur zur Erläuterung);
Fig. 6
einen Längsschnitt entsprechend der Linie VI-VI in Fig. 7 durch eine nicht in einem Steckverbinder eingebaute, entspannte Andruckfeder; und
Fig. 7
eine Ansicht in Richtung des Pfeils VII in Fig. 6.
An embodiment of the connector according to the invention is shown in the drawing and explained in more detail in the following description. It demonstrate:
Fig. 1
a longitudinal section through the connector in the initial state;
Fig. 2
a plan view in the direction of arrow II in Fig. 1 ;
Fig. 3
in one of the Fig. 2 corresponding view (but not shown crimping) the position of the pressure spring with the contact pin fully inserted;
FIGS. 4a-4c
of the Fig. 1 corresponding representations of the connector with differently far inserted contact pin;
Fig. 5
a longitudinal section of the connector without contact pin with no existing pressure spring (fictitious, for explanation only);
Fig. 6
a longitudinal section corresponding to the line VI-VI in Fig. 7 by a not in a connector built-in, relaxed pressure spring; and
Fig. 7
a view in the direction of arrow VII in Fig. 6 ,

Beschreibung des AusführungsbeispielsDescription of the embodiment

In Fig. 1 und Fig. 2 weist ein elektrischer Steckverbinder 1 einen Grundkörper 3 auf, der an einem Ende durch einen Crimpbereich 5 mit einem elektrischen Anschlusskabel 4 zu verbinden ist. Am anderen Ende ist eine Steckaufnahme 7 vorhanden. Parallel zur Zeichenebene der Fig. 1 verlaufen ebene Seitenwände 8 des Grundkörpers 3. In die Steckaufnahme 7 ist bei dem gezeigten, für die Erststeckung bereiten Ausgangszustand ein Kontaktpin 9 einzuschieben, der im Querschnitt entweder rund oder, wie hier bevorzugt und vorgesehen, flach ist. Der Grundkörper 3 ist aus Metallblech, im Beispiel Stahl, und durch Stanzen und Biegen hergestellt. Dabei sind in den Seitenwänden 8 einstückig verbundene Kontaktlamellen 11 durch breite Schlitze 12 ausgeschnitten und frei geschnitten worden sowie durch Biegen geformt worden. Die Kontaktlamellen 11 entspringen etwa auf halber Länge des Grundkörpers 3 und erstrecken sich in Richtung zum einzusteckenden Kontaktpin 9 hin. Die Kontaktlamellen 11 begrenzen zwei rechtwinklig zu den Seitenwänden 8 verlaufende einander gegenüber liegende Seiten der Steckaufnahme 7, die willkürlich als deren Oberseite und Unterseite bezeichnet sind.In Fig. 1 and Fig. 2 For example, an electrical connector 1 has a main body 3 , which is to be connected at one end by a crimping region 5 to an electrical connection cable 4 . At the other end a plug-in receptacle 7 is present. Parallel to the drawing plane of the Fig. 1 extending flat side walls 8 of the base body 3. In the plug-in receptacle 7 is in the example shown, for the initial state Erststeckung prepare a contact pin insert 9, the cross-section either round or, as here preferably provided and is flat. The base body 3 is made of sheet metal, in the example steel, and by punching and bending. In this case, in the side walls 8 integrally connected contact blades 11 by 12 wide slits were cut and cut free and formed by bending. The contact blades 11 originate approximately halfway along the base body 3 and extend in the direction of the contact pin 9 to be inserted. The contact blades 11 define two mutually perpendicular to the side walls 8 extending opposite sides of the plug-in receptacle 7, which are arbitrarily referred to as the top and bottom.

Der Steckverbinder 1 wird vom Hersteller zweckmäßig im Ausgangszustand ausgeliefert, möglicherweise ohne angecrimptes Anschlusskabel 4. Vor dem Zusammenbiegen des Grundkörpers 3 ist in diesen ein Spreizelement 13 eingesetzt worden, das im Beispiel ein Bestandteil einer Andruckfeder 15 ist. Das Spreizelement 13 ist im Wesentlichen eine federnd verformbare Platte 16, deren den beiden Kontaktlamellen 11 zugewandten Endbereiche in einem mittleren Bereich durch eine Abwinkelung 17 verdickt sind und dort Kanten 18 (Fig.6) zum Eingriff mit je einer Rast 19 (Fig. 5) haben. Die Rasten 19 sind an den einander zugewandten Innenflächen der Kontaktlamellen 11 an einer geeigneten Stelle (hinsichtlich der auszuübenden Spreizkraft und dem zu erzeugenden Abstand zwischen den Kontaktstellen der Kontaktlamellen 11) angeordnet; im Beispiel befinden sich die Rasten 19 etwa auf einem Drittel der Länge der Kontaktlamellen 11, von der Seite des Crimpbereichs 5 her gerechnet, und sind durch sickenartige Prägungen gebildet. Die Platte 16 ist im Beispiel zur Steckaufnahme 7 hin konvex gewölbt. Außerdem ist dies im Beispiel ein vorgespannter Zustand der Platte 16, und im entspannten Zustand ist sie entgegengesetzt (konkav) gewölbt. Die Angaben bezüglich der Richtung der Krümmung im Ausgangszustand und im entspannten Zustand werden als vorteilhaft im Ausführungsbeispiel angesehen, sind aber nicht zwingend. Die Plattenwölbung gemäß Fig. 1 setzt zunächst dem auf die Platte 16 beim Zusammenstecken auftreffenden Kontaktpin 9 einerseits einen relativ großen Widerstand entgegen. Es muss erst diese konvexe Wölbung (etwa ähnlich dem Überwinden der oberen Totpunktlage eines Kniegelenkgetriebes) eingedrückt werden, damit sie in eine konkave Wölbung überführt werden kann und die Platte 16 aus den Rasten 19 heraus gelangen kann. Je stärker die konvexe Krümmung ist (das heißt je kleiner der Krümmungsradius ist), um so größer ist die vom Kontaktpin 9 zunächst auszuübende Kraft. Andererseits erleichtert die Tendenz der Platte 16, den entspannten Zustand anzunehmen, das Verformen der Platte 16 durch den Kontaktpin 9. Die konvexe Krümmung in der Ausgangslage unterstützt bei der gezeigten Anordnung der Kanten 18 eine besonders kräftige Verankerung (Verrastung) der Platte 16 in den Rasten 19. Wenn das Spreizelement 13 nur durch die Platte 16 (mit deren Abwinklungen 17) gebildet ist, ist die Platte 16 nach dem Entrasten innerhalb des Grundkörpers 3 gefangen, aber lose. Aus den obigen Angaben kann leicht das prinzipielle Verhalten des Spreizelements 13 bei beliebigen Kombinationen der Richtung der Krümmung im Ausgangszustand und im entspannten Zustand ermittelt werden. Für beide Zustände ist sogar ein ebener Zustand der Platte möglich, je einzeln oder gleichzeitig.The connector 1 is expediently delivered by the manufacturer in the initial state, possibly without crimped connecting cable 4. Before the bending of the main body 3 in this an expansion element 13 has been used, which is an integral part of a pressure spring 15 in the example. The expansion element 13 is essentially a resiliently deformable plate 16, the two contact blades 11 facing end portions are thickened in a central region by a bend 17 and there edges 18 (FIG. Figure 6 ) for engagement with a respective latch 19 ( Fig. 5 ) to have. The detents 19 are arranged at the mutually facing inner surfaces of the contact blades 11 at a suitable location (with respect to the spreading force to be exerted and the distance to be generated between the contact points of the contact blades 11); in the example, the detents 19 are approximately one third of the length of the contact blades 11, calculated from the side of the crimping 5 ago, and are formed by bead-like embossments. The plate 16 is convexly curved in the example to the socket 7. In addition, in the example, this is a biased state of the plate 16, and in the relaxed state, it is opposite (concave) arched. The information regarding the direction of the curvature in the initial state and in the relaxed state are considered advantageous in the exemplary embodiment, but are not mandatory. The plate curvature according to Fig. 1 sets first the contact pin 9 impinging on the plate 16 during mating, on the one hand, with a relatively large resistance. It must first be pressed this convex curvature (approximately similar to overcoming the top dead center of a knee joint gear) so that it can be converted into a concave curvature and the plate 16 can get out of the notches 19 out. The stronger the convex curvature (that is, the smaller the radius of curvature is), the greater is the force to be exerted by the contact pin 9 first. On the other hand, the tendency of the plate 16 to assume the relaxed state facilitates the deformation of the plate 16 by the Kontaktpin 9. The convex curvature in the starting position supported in the arrangement of the edges 18 shown a particularly strong anchoring (locking) of the plate 16 in the latches 19. If the expansion element 13 is formed only by the plate 16 (with their bends 17), the plate 16 is caught after unlocking within the body 3, but loose. From the above information, the basic behavior of the expansion element 13 can easily be determined for any combination of the direction of the curvature in the initial state and in the relaxed state. For both states even a flat state of the plate is possible, either individually or simultaneously.

In Fig. 1 weist die Andruckfeder 15 zusätzlich zur beschriebenen Platte 16 einstückig mit dieser verbundene Schenkel 22 aus elastischem Material auf, die sich weiter nach vorn, in Fig. 1 nach links, erstrecken. Die Schenkel 22 haben rechtwinklig zur Bildebene der Fig. 1 einen Abstand von den Abwinklungen 17 und verlaufen daher je nach Biegezustand der Andruckfeder 15 unter verschiedenen Winkeln relativ zu den Abwinklungen 17. Die Schenkel 22 können auch ohne die noch zu schildernde weitere Funktion dafür sorgen, dass sich die Platte 16 nach dem Entrasten nicht oder nur begrenzt lose im Grundkörper 3 bewegen kann. Im Beispiel sind die Schenkel 22 beim Montieren der Steckvorrichtung für den ersten Gebrauch weit aufgespreizt worden. Dadurch wurde die Andruckfeder 15 stark elastisch gespannt, besonders im Bereich der Platte 16, die ein Joch oder eine Basis der in der Ansicht der Fig. 1 etwa U-förmigen Andruckfeder 15 bildet. Nach dem genannten Spannen wurde die Andruckfeder 15 weiter nach vorne verschoben, so dass die freien Endbereiche 23 der Schenkel 22 sich auf unbeweglichen (im Gegensatz zu den Kontaktlamellen 11) Stützflächen 24 an der Außenseite des Grundkörpers 3 abstützen. Dadurch werden die konvexe Gestalt der Platte 16 und die Verrastung aufrecht erhalten. Im Beispiel sind die Schenkel 22 durch eine mittig verlaufende Aussparung 25 (Fig. 7) in Arme 26 unterteilt, so dass sie mit den Kontaktlamellen 11 oder Seitenwänden 8 nicht seitlich kollidieren können. Außerdem wurden die freien Endbereiche 23 der Arme 26 jedes Schenkels nach dem zuletzt genannten Fertigungsschritt durch einen quer verlaufenden Steg 27 miteinander verbunden, so dass die Aussparung 25 im Schenkel 22 ein Fenster bildet.In Fig. 1 the pressure spring 15 in addition to the described plate 16 in one piece with this connected leg 22 of elastic material, which further forward, in Fig. 1 to the left, extend. The legs 22 have at right angles to the image plane of Fig. 1 a distance from the angled portions 17 and therefore depending on the bending state of the pressure spring 15 at different angles relative to the angled portions 17. The legs 22 can ensure without the yet to be described further function that the plate 16 after unlocking not or only limited loose in the body 3 can move. In the example, the legs 22 have been widely spread when mounting the plug-in device for the first use. As a result, the pressure spring 15 was stretched very elastic, especially in the area of the plate 16, which is a yoke or a base in the view of Fig. 1 forms approximately U-shaped pressure spring 15. After said clamping, the pressure spring 15 has been moved further forward, so that the free end portions 23 of the legs 22 are supported on immovable (in contrast to the contact blades 11) support surfaces 24 on the outside of the base body 3. Thereby, the convex shape of the plate 16 and the latching are maintained. In the example, the legs 22 through a centrally extending recess 25 (FIG. Fig. 7 ) are divided into arms 26 so that they can not collide laterally with the contact blades 11 or side walls 8. In addition, the free end portions 23 of the arms 26 of each leg were connected to each other after the last-mentioned manufacturing step by a transverse web 27 , so that the recess 25 in the leg 22 forms a window.

Beim Stecken bewegt sich der Kontaktpin 9 zunächst ohne jeden Kontaktreibungswiderstand zwischen den genügend weit geöffneten Kontaktlamellen 11 und deren zur Anlage am Kontaktpin 9 bestimmten Kontaktkuppen 29 ins Innere der Steckaufnahme 7. Dann trifft er auf die konvex gekrümmte Platte 16, und spätestens dann, wenn diese ihre Krümmungsrichtung geändert hat, bewegt der Kontaktpin 9 die Andruckfeder 15 insgesamt nach hinten. Dabei kommt der noch durch die Stützflächen 24 abgestützte Steg 27 der Schenkel 22 über die freien Enden der Kontaktlamellen 11. Wenn der Steg 27 von den Stützflächen 24 frei gekommen ist, wird die Andruckfeder 15 daher nicht mehr in ihrer gespreizten Stellung gehalten. Dann werden die Stege 27 durch die Vorspannung der Andruckfeder 15 gegen die Kontaktlamellen 11 im Sinn eines Andrückens an den Kontaktpin 9 gepresst. Die Anordnung ist so, dass der Kontaktpin 9 dann durch einen nicht gezeigten Anschlag an einer weiteren Bewegung gehindert wird, wenn die Stege 27 sich oberhalb der Kontaktkuppen 29 der Kontaktlamellen 11 befinden; dann bewirken sie eine Verstärkung der von den Kontaktlamellen 11 erzeugten Kontaktnormalkraft. Im Beispiel kommen die Stege 27 nach dem Entrasten der Platte 16 durch die Kraft der Andruckfeder 15 selbsttätig an die vertiefte Stelle außen an den Kontaktlamellen 11. Dort befinden sich innen die Kontaktkuppen 29. Anstatt mittels des Stegs 27 könnte jeder Arm 26 bei anderen Ausführungsformen mittels eines seitlichen an ihm vorhandenen Vorsprungs auf die Kontaktlamelle 11 drücken. Die Anordnung ist in jedem Fall so, dass die Abstützung und die Lage des vorderen Endes der Kontaktlamellen 11 das Verschieben der Andruckfeder 15 nicht unerwünscht hemmen. In Fig. 1 sind die Kontaktlamellen 11 und die Verrastung mit dem Joch der Andruckfeder 15 geschnitten; ein Schenkel 22 der Andruckfeder 15 ist in Ansicht, teilweise verdeckt, sichtbar. In Einsteckrichtung des Kontaktpins 9 gesehen, ist der Steckverbinder 1 etwa rechteckig. Insgesamt hat das gezeigte Ausführungsbeispiel unter anderem folgende Funktionen und Eigenschaften:When plugging the contact pin 9 moves without any contact friction between the sufficiently wide open contact blades 11 and their contact pin 9 certain contact points 29 inside the socket 7. Then he meets the convex curved plate 16, and at the latest when this has changed its direction of curvature, the contact pin 9 moves the pressure spring 15 in total to the rear. In this case, the supported by the support surfaces 24 web 27 of the legs 22 on the free ends of the contact blades 11 comes. When the web 27 has come free from the support surfaces 24, the pressure spring 15 is therefore no longer held in its spread position. Then, the webs 27 are pressed by the bias of the pressure spring 15 against the contact blades 11 in the sense of a pressing against the contact pin 9. The arrangement is such that the contact pin 9 is then prevented by a stop, not shown, to further movement when the webs 27 are located above the contact blades 29 of the contact blades 11; then they cause an amplification of the contact normal force generated by the contact blades 11. In the example, the webs 27 come after unlocking the plate 16 by the force of the pressure spring 15 automatically to the recessed location outside of the contact blades 11. There are inside the contact blades 29. Instead by means of the web 27 each arm 26 could be in other embodiments by means Press a lateral projection on it on the contact blade 11. The arrangement is in any case such that the support and the position of the front end of the contact blades 11 do not inhibit the displacement of the pressure spring 15 undesirable. In Fig. 1 the contact blades 11 and the latch are cut with the yoke of the pressure spring 15; a leg 22 of the pressure spring 15 is in view, partially hidden, visible. Seen in the insertion direction of the contact pins 9, the connector 1 is approximately rectangular. Overall, the exemplary embodiment shown has, inter alia, the following functions and properties:

Es ist vorgesehen, die vorgespannte und verschiebliche Andruckfeder 15 in den Steckverbinder 1 mit nach innen vorgebogenen Kontaktlamellen 11 so einzufügen, dass die Kontaktlamellen 11 durch Kanten 18 der Andruckfeder 15 zunächst aufgespreizt werden. In das auf diese Weise aufgespreizte große Kontaktgap kann der Kontaktpin 9 kräftefrei bis weit zwischen die Kontaktkuppen 29 geschoben werden. Der einlaufende Kontaktpin 9 drückt in der Fortführung seiner Bewegung die Andruckfeder 15 vor sich her in das Innere des Kontaktes oder Grundkörpers 3. So werden die Kontaktlamellen 11 freigegeben und können gegen die Oberfläche des Kontaktpins 9 kontaktieren. Gleichzeitig rutschen die freien Schenkel 22 der Andruckfeder 15 aus ihrer Vorraststellung in ihre Arbeitsposition hinter die Kontaktkuppen 29, wo sie die Kontaktnormalkräfte der Kontaktlamellen 11 verstärken.It is envisaged to insert the preloaded and displaceable pressure spring 15 in the connector 1 with inwardly pre-bent contact blades 11 so that the contact blades 11 are first spread by edges 18 of the pressure spring 15. In the spread in this way large Kontaktgap the contact pin 9 can be pushed without force to far between the contact blades 29. The incoming contact pin 9 presses in the continuation of his movement the Pressure spring 15 in front of him into the interior of the contact or body 3. Thus, the contact blades 11 are released and can contact the surface of the contact pin 9. At the same time slip the free leg 22 of the pressure spring 15 from its pre-locking position into its working position behind the contact blades 29, where they reinforce the contact normal forces of the contact blades 11.

Vorzugsweise wird die Andruckfeder 15 als breite und U-förmig gebogene Federstahlklammer ausgeführt. Die Basis 16 der U-förmigen Andruckfeder 15 ist dabei massiv ausgeführt; sie übernimmt die Spreizfunktion für die Kontaktlamellen 11 während der Einsteckphase des Kontaktpins 9. Außerdem übernimmt die Basis 16 die Hauptarbeit der nach innen gerichteten Federwirkung während der Kontaktierphase. Für die Fixierung der Andruckfeder 15 in der Spreizposition sind die entsprechenden Rasten 19 an der Innenseite der Kontaktlamellen 11 für die Ränder 18 der Andruckfederbasis 16 vorgesehen. Die freien Schenkel 22 der U-förmigen Andruckfeder 15 sind mit breiten Fenstern 25 versehen; durch diese können die Kontaktlamellen 11 von außen hindurchtauchen, so dass sie in der Kontaktierphase von den äußeren Spitzen (Druckflächen 23) der freien Schenkel 22 in Höhe der Kontaktpunkte oder Kontaktkuppen 29 von außen zusammengedrückt werden. Im Anlieferungszustand und während der ersten Phase des Einsteckvorganges ruhen diese Druckflächen 23 der freien Andruckfederschenkel 22 auf starren Widerlagern 24 des Kontaktmaulbereiches (Eingangsöffnung der Steckaufnahme), ohne die Kontaktlamellen 11 zu berühren. Eine etwaige elastische Verformung der Arme 26 ist nicht dargestellt.Preferably, the pressure spring 15 is designed as a wide and U-shaped bent spring steel clip. The base 16 of the U-shaped pressure spring 15 is made massive; it takes over the spreading function for the contact blades 11 during the insertion phase of the contact pin 9. In addition, the base 16 takes over the main work of the inward spring action during the contacting. For the fixation of the pressure spring 15 in the spread position, the corresponding notches 19 are provided on the inside of the contact blades 11 for the edges 18 of the Andruckfederbasis 16. The free legs 22 of the U-shaped pressure spring 15 are provided with wide windows 25; through this, the contact blades 11 can penetrate from the outside, so that they are compressed in the Kontaktierphase from the outer tips (pressure surfaces 23) of the free legs 22 at the level of the contact points or contact blades 29 from the outside. As delivered and during the first phase of the insertion process these pressure surfaces 23 of the free Andruckfederschenkel 22 rest on rigid abutments 24 of the Kontaktmaulbereiches (input opening of the plug-in receptacle), without touching the contact blades 11. Any elastic deformation of the arms 26 is not shown.

Durch diese Anordnung der Kontaktlamellen 11 und der Andruckfeder 15 im Anlieferzustand ist es möglich, für die Erststeckung ein derart weit vorgespanntes Kontaktgap zu realisieren, das ein kräftefreies Einstecken des Kontaktpins 9 bis weit zwischen die Kontaktkuppen 29 ermöglicht. Durch die geschickte Auslegung der Rasten 19 in den Kontaktlamellen 11 ist es möglich, die für die Verschiebung der Andruckfeder 15 notwendige Kraft in Steckrichtung auf ein Niveau zu senken, das weit unter dem Aufschnäbel-Peak eines geometrisch vergleichbaren, jedoch nicht aufgespreizten Kontaktsystems liegt.By this arrangement, the contact blades 11 and the pressure spring 15 in the delivery condition, it is possible to realize for the Erststeckung so far biased Kontaktgap that allows a force-free insertion of the contact pins 9 to far between the contact tips 29. The skillful design of the detents 19 in the contact blades 11, it is possible to reduce the force necessary for the displacement of the pressure spring 15 in the insertion direction to a level that is far below the Aufschnäbel peak of a geometrically comparable, but not spread contact system.

Die in dieser Art ausgeführten Kontaktlamellensysteme können

  1. a) durch die sehr genaue Art der Kontaktlamellenaufspreizung den bei herkömmlichen Kontakten vorhandenen Aufschnäbel-Peak (erhöhte Kraft zum Auseinanderdrängen der Kontaktlamellen) vollständig vermeiden;
  2. b) sich darüber hinaus in Kontaktsystemen implementieren lassen, deren vorderer Kontaktierbereich schwingungstechnisch von dem Crimpbereich (für den Anschluss einer elektrischen Leitung) und der Stahlüberfeder entkoppelt ist, da Wechselwirkungen mit den umgebenden Elementen des Kontaktes bei diesem System nicht notwendig sind;
  3. c) in sehr engen Toleranzen gefertigt werden, da es sich hier ausschließlich um Stanz-Biege-Prozesse eines Teiles handelt und die Präzision des Stanz-Biege-Prozesses an dieser Stelle das Gapmaß definiert.
Es wird so ein vorgespanntes Kontaktlamellensystem mit Kraftunterstützung geschaffen, bei dem die Kontaktlamellen im aufgesteckten Zustand über ihren gesamten Federbereich ohne Verminderung der Kontaktkraft durch Spreizelemente arbeiten können.The contact slat systems designed in this way can
  1. a) by the very precise nature of the Kontaktlamellenaufspreizung completely avoid the existing in conventional contacts Aufschnäbel peak (increased force to push apart the contact blades);
  2. b) can also be implemented in contact systems whose front Kontaktierbereich is vibrationally decoupled from the crimp (for the connection of an electrical line) and the steel coil over, since interactions with the surrounding elements of the contact in this system are not necessary;
  3. c) are manufactured to very tight tolerances, since it is all about stamping-bending processes of a part and the precision of the stamping-bending process at this point defines the Gapmaß.
It is created as a prestressed contact plate system with power assistance, in which the contact blades in the plugged state over their entire spring range can work without reducing the contact force by spreading.

Fig. 3 zeigt die Endposition der durch den Kontaktpin 9 nach hinten geschobenen Andruckfeder 15. Fig. 3 shows the end position of the pushed by the contact pin 9 to the rear pressure spring 15th

Fig. 4a bis Fig.4c zeigen einen in Fig. 4a gegenüber Fig. 1 bis etwas über die Kontaktkuppen 29 weiter reibungsfrei vorgeschobenen Kontaktpin 9. In Fig. 4b hat der Kontaktpin 9 die Platte 16 von konvex nach konkav verformt und die ganze Andruckfeder 15 so weit nach hinten verschoben, dass die Endbereiche 23 der Arme 26 sich auf den Kontaktlamellen 11 außen federnd abstützen. In Fig. 4c hat der Kontaktpin 9 sich noch etwas weiter nach hinten bewegt. Dabei sind infolge Federkraft die Endbereiche 23 zum tiefsten Punkt der Außenseite der Kontaktlamellen 11 gerutscht und drücken nun genau im Kontaktbereich der Kontaktkuppen 29 von außen auf die Kontaktlamellen 11. Fig. 4a to Fig.4c show one in Fig. 4a across from Fig. 1 until slightly over the contact tips 29 further frictionless advanced contact pin 9. In Fig. 4b has the contact pin 9, the plate 16 is deformed from convex to concave and the entire pressure spring 15 so far moved back that the end portions 23 of the arms 26 are resiliently supported on the contact blades 11 outside. In Fig. 4c the contact pin 9 has moved a little further back. In this case, the end portions 23 are slipped to the lowest point of the outside of the contact blades 11 due to spring force and now press exactly in the contact region of the contact tips 29 from the outside to the contact blades 11th

Fig. 5 zeigt zur Illustration die völlig entspannte Stellung der Kontaktlamellen 11. Die Kontaktkuppen 29 berühren sich fast. Hier ist zur Demonstration in einem Musterstück keine Andruckfeder in den Grundkörper 3 eingebaut worden. Fig. 5 shows for illustrative purposes the completely relaxed position of the contact blades 11. The contact blades 29 almost touch each other. Here, no pressure spring has been installed in the main body 3 for demonstration in a sample.

Fig. 6 und Fig. 7 zeigen die Andruckfeder 15 in einem nicht eingebauten völlig entspannten Zustand. Die Endbereich 23 der zwei Stege 27 haben einen kleinen Abstand. In dem Bereich, wo die Druckfeder an den Stützflächen 24 des Grundkörpers 3 anliegen soll, ist sie etwas abgebogen. Fig. 6 and Fig. 7 show the pressure spring 15 in a non-installed completely relaxed state. The end portion 23 of the two webs 27 have a small distance. In the area where the compression spring is to abut against the support surfaces 24 of the base body 3, it is slightly bent.

Claims (9)

  1. Electrical plug connector (1) having a plug receptacle (7) which is provided for insertion of an electrically conductive contact pin (9) and has contact laminates (11) which can be prestressed in the direction towards one another, extend from a base body (3) in the opposite direction to the insertion direction of the contact pin (9) and between them bound an upper face and an opposite lower face of the plug receptacle (7) in an initial, ready for insertion, state of the plug connector (1), characterized by an elastic spreading element (13) which, in the initial state, is supported by at least one catch against movement in the insertion direction of the contact pin (9), and holds the contact laminates (11) in an elastically stressed open position, wherein the at least one catch can be detached by insertion of the contact pin (9) beyond the point of contact with the spreading element (13), such that the spreading element (13) releases the contact laminates (11) for making contact with the contact pin (9).
  2. Plug connector according to Claim 1, characterized in that the spreading element (13) is arranged at about 1/3 of the length of the contact laminates (11) from their fixed end.
  3. Plug connector according to Claim 1 or 2, characterized in that the spreading element (13) is a yoke of a contact spring (15) which is bent approximately in a U-shape, is arranged, in the initial state, generally symmetrically with respect to a centre plane between said upper face and the lower face and has two limbs (22) which are connected by the spreading element (13), which is located in the path of the contact pin (9), wherein the limbs (22) extend in the same direction as the contact laminates (11), and the free end areas of the limbs (22) are supported on the base body (3), with the contact spring (15) being deformed elastically, and the contact laminates (11) are held by the spreading element (13) in a state bent in the opposite direction to that prestressing.
  4. Plug connector according to Claim 3, characterized in that the free end areas of the limbs (22) are supported such that the limbs (22) release the latching of the contact laminates (11) by the contact spring (15) being moved by means of the contact pin (9).
  5. Plug connector according to Claim 3 or 4, characterized in that the limbs (22) are subdivided by in each case one cutout (25) which runs in the longitudinal direction, into two arms (26) which run on both sides in the viewing direction at right angles to said centre plane alongside the contact laminates (11), and their end area facing away from the spreading element (13) is supported on the base body (3).
  6. Plug connector according to one of Claims 3 to 5, characterized in that the limbs (22) project further forward than the contact laminates (11).
  7. Plug connector according to one of Claims 3 to 6, characterized in that the front ends of the contact laminates (11) are arranged such that they enter an area on the outer face of the contact laminates (11) when the contact spring (15) is moved by the contact pin (9).
  8. Plug connector according to one of Claims 3 to 7, characterized in that the limbs (22) load the contact laminates (11) in their closing direction after the spreading element (13) has been unlatched.
  9. Plug connector according to one of the preceding claims, characterized in that, in the initial state, the spreading element (13) is held in an interlocking manner in depressions (catches 19) in the contact laminates (11), wherein the spreading element (13) is deformed in an elastically convex shape, in the opposite direction to the insertion direction of the contact pin (9), in the initial state, and in that the spreading element (13) can be changed to a concave-curved shape by the contact pin (9).
EP06119992A 2005-09-14 2006-09-01 Electrical connector with preloaded contacts blades Not-in-force EP1764875B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005043694A DE102005043694A1 (en) 2005-09-14 2005-09-14 Electrical plug connector has plug holder for inserting contact pin with contact lamellas biased towards each other extending from base against plug-in direction to enclose plug holder in initial state in which they are ready for insertion

Publications (2)

Publication Number Publication Date
EP1764875A1 EP1764875A1 (en) 2007-03-21
EP1764875B1 true EP1764875B1 (en) 2010-05-19

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Application Number Title Priority Date Filing Date
EP06119992A Not-in-force EP1764875B1 (en) 2005-09-14 2006-09-01 Electrical connector with preloaded contacts blades

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EP (1) EP1764875B1 (en)
AT (1) ATE468633T1 (en)
DE (2) DE102005043694A1 (en)

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DE102008002592A1 (en) * 2008-06-24 2009-12-31 Robert Bosch Gmbh Electrical plug device
DE102010023841A1 (en) 2010-06-09 2011-12-15 Pfisterer Kontaktsysteme Gmbh Electrical connector
DE102011078093A1 (en) 2011-06-27 2012-12-27 Robert Bosch Gmbh Connector with strand protection element
DE102011111581B4 (en) * 2011-08-20 2023-06-07 Volkswagen Aktiengesellschaft Method for producing an electrical plug-in contact connection, connector device and connector pair
DE102012101709B4 (en) * 2012-03-01 2015-05-28 Phoenix Contact Gmbh & Co. Kg Connectors
DE102012015568B4 (en) * 2012-08-08 2018-12-20 Auto-Kabel Management Gmbh Connectors
DE102013226781B4 (en) * 2013-12-19 2015-10-08 Robert Bosch Gmbh Contact socket for an electrical connection device
DE102019210695B3 (en) * 2019-07-19 2020-10-08 Robert Bosch Gmbh Contact element
JP7314012B2 (en) * 2019-10-07 2023-07-25 日本航空電子工業株式会社 Socket contacts and connectors
DE102020113061B3 (en) 2020-05-14 2021-11-04 Lisa Dräxlmaier GmbH ELECTRIC CONNECTOR AND CONNECTOR WITH SUCH ELECTRIC CONNECTOR

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DE102005043694A1 (en) 2007-03-15
EP1764875A1 (en) 2007-03-21
DE502006006966D1 (en) 2010-07-01
ATE468633T1 (en) 2010-06-15

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