EP3577723B1 - Contact blade for a socket-like connector part, and socket-like connector part - Google Patents

Contact blade for a socket-like connector part, and socket-like connector part Download PDF

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Publication number
EP3577723B1
EP3577723B1 EP18702651.3A EP18702651A EP3577723B1 EP 3577723 B1 EP3577723 B1 EP 3577723B1 EP 18702651 A EP18702651 A EP 18702651A EP 3577723 B1 EP3577723 B1 EP 3577723B1
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EP
European Patent Office
Prior art keywords
contact
arm
another
socket
incision
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.)
Active
Application number
EP18702651.3A
Other languages
German (de)
French (fr)
Other versions
EP3577723A1 (en
Inventor
Wolfgang Neumann
Thomas Scherer
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.)
Kostal Kontakt Systeme GmbH
Original Assignee
Kostal Kontakt Systeme GmbH
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Application filed by Kostal Kontakt Systeme GmbH filed Critical Kostal Kontakt Systeme GmbH
Publication of EP3577723A1 publication Critical patent/EP3577723A1/en
Application granted granted Critical
Publication of EP3577723B1 publication Critical patent/EP3577723B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • 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
    • 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
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • 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
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2464—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point
    • H01R13/2492—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point multiple contact points

Definitions

  • the invention relates to a contact blade according to the features of claim 1.
  • the invention also relates to a plug connector part forming a socket according to the features of claim 6.
  • a contact lamella as well as a socket-like connector part with a contact lamella are not previously published German patent application DE 10 2016 007 117 by the same applicant.
  • the DE 10 2016 007 117 described contact blade is introduced on a section of each contact web in the longitudinal direction of an elongated opening, which is referred to here as a contact incision and which additionally divides the respective contact web in sections into two parallel strips, which are referred to as contact runners.
  • the section with the contact incisions is located in an area in which the contact arms or contact webs are bent towards one another and thus come closer to one another. This results in points at which the contact lamella electrical connections to one between the contact arms Can produce insertable mating connector, and which are hereinafter referred to as contact points. These are each located approximately in the middle of the longitudinal extensions of the contact incisions.
  • a plug pin with a rectangular cross section is provided as the mating connector.
  • the contact points arranged on the outer contact runners are, however, very close to the side edges of the contact arms.
  • an outer contact point of the contact lamella only touches one edge of the plug pin instead of a surface.
  • unlike surface contact such edge contacting of the plug pin does not form a reliable contact point.
  • the object was to improve a generic contact lamella and a connector having such a contact lamella in a simple and inexpensive manner with regard to mechanical and electrical contact reliability.
  • the changed shape of the contact incisions also changes the shape of the contact runners, since the transverse bulges of the contact incisions now widen the outer contact runners next to the bulges. This makes it possible to shift the position of the outer contact points inwards, that is to say away from the edges of the contact arms, as a result of which these contact points make reliable contact with the surface of the plug pin. It is also advantageous that the contour of the punch for producing the contact incisions can be made considerably more robust than an originally straight punch, which means that it has a longer service life and saves costs.
  • FIG Figure 1 A resilient contact blade 10 designed according to the invention for a socket-like connector part is shown in FIG Figure 1 shown.
  • the contact lamella 10 is formed in one piece from a sheet metal strip 20 as a stamped and bent part.
  • the sheet metal strip 20 which was preformed by punching, was bent over in a U-shape, as a result of which the U-legs formed as a result form two contact arms 31, 32 opposite one another.
  • the contact arms 31, 32 are not aligned parallel to one another but have different distances from one another over their longitudinal direction.
  • the mutual spacing of the contact arms 31, 32 is minimal in a middle section 33, 34 of their longitudinal extensions.
  • the middle sections 33, 34 of the contact arms 31, 32 do not necessarily coincide with the geometric centers of the contact arms 31, 32. Rather, the term refers to the Position of these sections 33, 34 between the bending area 22 connecting the contact arms 31, 32 and their end sections 61, 62.
  • the end sections 61, 62 of the contact arms 31, 32 are laterally connected to one another by molded webs 63, 64 bent at right angles and form a frame-shaped input area 65 for inserting a plug pin belonging to a complementary connector part.
  • Each contact arm 31, 32 has an incision 35, 36 over most of its longitudinal extent, which divides the respective contact arm 31, 32 into two adjacent contact webs 41, 43 and 42, 44, respectively.
  • a further incision is in turn made in each contact web 41, 42, 43, 44.
  • These further incisions which are referred to here as contact incisions 45, 46, 47, 48, are significantly shorter than the incisions 35, 36 between the contact webs 41, 42, 43, 44 and divide each of the contact webs 41, 42, 43, 44 into two contact runners 51 - 58 each.
  • the Figures 2 and 3 each show a view of a socket-like plug connector part 1 shown partially in section.
  • the plug connector part 1 consists of an integrally formed base body 90 which can be functionally divided into a connection section 91 and a contact section 92.
  • the connection section 91 is designed here as a crimping section and serves to connect a connection line (not shown here), the conductor wires of which can be connected to the connection section 91 by means of a crimping process.
  • the contact section 92 adjoining the connection section 91 is box-shaped and is inserted into the Figures 2 and 3 Shown cut along its longitudinal direction.
  • a resilient latching lance 93 is formed on the upper side of the contact section 92, which the fastening of the connector part 1 in one, not shown here, from one Insulating material supports existing housing body.
  • the box-shaped contact section 92 forms a cavity into which a contact blade 10 is inserted.
  • the entire connector part 1 thus consists of two integrally formed components, namely the base body 90 and the contact lamella 10.
  • the frame-shaped input region 65 of the contact lamella 10 is flush with the input opening of the contact section 92 of the base body 90.
  • the contact blade 10 'in the Figure 4 has, unlike the contact blade 10 in the Figure 1 , over the longitudinal direction of the contact arms 31 ', 32' completely linearly guided incisions 35 ', 36', as well as completely linearly guided contact incisions 45 ', 46', 47 ', 48' in the contact webs 41 ', 42', 43 ', 44 'on.
  • Figures 5 to 7 Based on Figures 5 to 7 the problem leading to the invention is to be explained in more detail by comparing different versions of contact lamellas 10 ′′, 10 ′, 10 with one another Figures 5 to 7 each show a horizontal section through a connector part 1 ′′, 1 ′, 1 with an inserted connector pin 2 "To make it recognizable below the inserted connector pin 2, the connector pin 2 is shown transparently.
  • the Figure 5 shows a contact lamella 10 ′′ in an embodiment as described in the patent DE 44 39 105 C1 is known. It has an incision 36 "in a contact arm 32" which divides the contact arm 32 "into two contact webs 42", 44 “designed as rectangular strips. On each contact web 42", 44 "there is a contact point in the middle of its transverse extent 74 ′′, 72 ′′ applied, which makes contact with a flat plug 2 pushed into the contact lamella 10 ′′.
  • each contact web 42', 44 ' is additionally subdivided into two contact runners 53', 54 ', 51', 52 'by a shorter contact incision 46', 48 'made parallel to the incision 36', as is not the case in FIG pre-published German patent application DE 10 2016 007 117 is described in more detail. Since each of the contact runners 51 ', 52', 53 ', 54' has a contact point 71 ', 72', 73 ', 74', this results in four contact points 71 ', 72', 73 ', 74' per contact arm 32 ' . Due to the opposite of the execution of the contact blade 10 "of the Figure 5 doubling the number of contact points, the electrical properties are compared to that in the Figure 5 The embodiment shown has been fundamentally improved.
  • Outlined contact blade 10 is provided to move the two outer contacts 72, 74 somewhat towards the center of the contact arm 32. This is achieved in that the two contact incisions 46, 48 are not completely straight, but each have a transverse bulge 81, 82 towards the inside.
  • the bulges 81, 82 each allow the sections 541, 521 of the contact runner 54, 52 lying next to the bulges 81, 82 to be made somewhat wider, so that there is more space available for an embossed contact point 74, 71 and this further to the Center of the contact arm 32 can be moved.
  • the bulges 81, 82 are arranged offset from one another in the longitudinal direction of the contact arm 32.
  • one contact point 74, 71 arranged on an outer contact runner 54, 52 and one on an inner contact runner 51, 53; 72, 73 are each arranged parallel to one another at the same level of the longitudinal extent, in each case in a line A, B.
  • the incision 36 separating the contact webs 42, 44 is not completely straight, but rather follows the course of the contact incisions 46, 48 .
  • the incision 36 itself therefore forms two bulges 83, 84, as a result of which the incision 36 and the contact incisions 46, 48 each run parallel to one another.
  • the contact points 71, 72, 73, 74 can be molded into the contact arm 32 in one work step by means of an embossing die. The same takes place at the same time or afterwards on that only in the Figure 1 contact arm 31 shown, even before the contact blade 10 is bent.

Landscapes

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

Description

Die Erfindung betrifft eine Kontaktlamelle gemäß den Merkmalen von Anspruch 1. Die Erfindung betrifft außerdem ein eine Buchse ausbildendes Steckverbinderteil gemäß den Merkmalen von Anspruch 6.The invention relates to a contact blade according to the features of claim 1. The invention also relates to a plug connector part forming a socket according to the features of claim 6.

Aus der deutschen Patentschrift DE 44 39 105 C1 ist eine derartige Kontaktlamelle bekannt, die aus einem u-förmig gebogenen Blechstreifen geformt ist, welcher dadurch zwei einander gegenüberstehende Kontaktarme ausbildet. Dabei ist jeder Kontaktarm durch einen in Längsrichtung eingebrachten Einschnitt in zwei Kontaktstege geteilt.From the German patent DE 44 39 105 C1 such a contact blade is known, which is formed from a U-shaped bent sheet metal strip, which thereby forms two opposing contact arms. Each contact arm is divided into two contact webs by an incision made in the longitudinal direction.

Eine Kontaktlamelle sowie auch ein buchsenartiges Steckverbinderteil mit einer Kontaktlamelle sind in der nicht vorveröffentlichten deutschen Patentanmeldung DE 10 2016 007 117 der gleichen Anmelderin beschrieben. Bei der in der DE 10 2016 007 117 beschriebenen Kontaktlamelle ist auf einem Abschnitt jedes Kontaktstegs in Längsrichtung ein länglicher Durchbruch eingebracht, der hier als Kontakteinschnitt bezeichnet wird und der den jeweiligen Kontaktsteg zusätzlich abschnittsweise in zwei parallele Streifen, die als Kontaktkufen bezeichnet werden, teilt. Der Abschnitt mit den Kontakteinschnitten befindet sich jeweils in einem Bereich, in dem die Kontaktarme beziehungsweise Kontaktstege aufeinander zu gebogen und damit einander angenähert sind. Hierdurch ergeben sich Stellen, an denen die Kontaktlamelle elektrische Verbindungen zu einem zwischen die Kontaktarme einfügbaren Gegensteckverbinder herstellen kann, und die nachfolgend als Kontaktpunkte bezeichnet werden. Diese befinden sich jeweils ungefähr in der Mitte der Längserstreckungen der Kontakteinschnitte. Als Gegensteckverbinder ist ein Steckerstift mit einem rechteckigen Querschnitt vorgesehen.A contact lamella as well as a socket-like connector part with a contact lamella are not previously published German patent application DE 10 2016 007 117 by the same applicant. In the case of the DE 10 2016 007 117 described contact blade is introduced on a section of each contact web in the longitudinal direction of an elongated opening, which is referred to here as a contact incision and which additionally divides the respective contact web in sections into two parallel strips, which are referred to as contact runners. The section with the contact incisions is located in an area in which the contact arms or contact webs are bent towards one another and thus come closer to one another. This results in points at which the contact lamella electrical connections to one between the contact arms Can produce insertable mating connector, and which are hereinafter referred to as contact points. These are each located approximately in the middle of the longitudinal extensions of the contact incisions. A plug pin with a rectangular cross section is provided as the mating connector.

Im Vergleich zu der aus der DE 44 39 105 C1 bekannten Kontaktlamelle, verdoppelt sich durch die in der DE 10 2016 007 117 vorgeschlagene Ausgestaltung der Kontaktlamelle die Anzahl der Kontaktpunkte, wodurch die Eigenschaften der elektrischen Verbindung zu einem Gegensteckverbinder deutlich verbessert werden. So lassen sich geringere Übergangswiderstände und eine unter schwierigen Umgebungsbedingungen (Erschütterungen, Vibrationen) robustere elektrische Verbindung erzielen.Compared to that from the DE 44 39 105 C1 known contact lamella, doubled by the one in the DE 10 2016 007 117 proposed design of the contact blade the number of contact points, whereby the properties of the electrical connection to a mating connector are significantly improved. In this way, lower contact resistances and a more robust electrical connection under difficult environmental conditions (shocks, vibrations) can be achieved.

Durch die in der DE 10 2016 007 117 vorgesehene abschnittsweise Unterteilung der Kontaktstege in zwei zueinander parallele Kontaktkufen, liegen die auf den äußeren Kontaktkufen angeordneten Kontaktpunkte allerdings recht nahe zu den Seitenrändern der Kontaktarme. Hierdurch kann es bei einer ungünstigen Toleranzlage von Steckerstift und Steckverbinderteil beziehungsweise Kontaktlamelle zueinander vorkommen, dass ein äußerer Kontaktpunkt der Kontaktlamelle statt einer Oberfläche nur eine Kante des Steckerstifts berührt. Eine solche Kantenkontaktierung des Steckerstifts bildet aber, anders als eine Flächenkontaktierung, keine zuverlässige Kontaktstelle aus.Through the in the DE 10 2016 007 117 provided section-wise subdivision of the contact webs into two parallel contact runners, the contact points arranged on the outer contact runners are, however, very close to the side edges of the contact arms. As a result, in the case of an unfavorable tolerance position between the plug pin and the plug connector part or contact lamella, it can happen that an outer contact point of the contact lamella only touches one edge of the plug pin instead of a surface. However, unlike surface contact, such edge contacting of the plug pin does not form a reliable contact point.

Aus der deutschen Gebrauchsmusterschrift DE 202 21 168 U1 ist ein als Buchse ausgebildeter einstückig geformter Steckkontaktkörper bekannt. Den Breitseiten des Buchsenschachtes sind Lamellen zugeordnet, die schachteinwärts gebogen sind. Die Lamellen jeder Schachtbreitseite sind durch in den Steckkontaktkörper eingebrachte Schlitze voneinander getrennt. Das Dokument US 2006 / 0252 294 A1 zeigt einen elektrischen Buchsenkontakt mit Kontaktfederarmen, wobei die Kontaktfederarme im Kontaktierungsbereich jeweils mit einem in Steckrichtung verlaufenden Langspalt versehen sind, wodurch die Anzahl der Kontaktstellen zu einem in den Buchsenkontakt eingebrachten Steckkontakt verdoppelt wird.From the German utility model DE 202 21 168 U1 an integrally formed plug contact body designed as a socket is known. The broad sides of the socket shaft are assigned lamellas that are curved inwards. The lamellas on each broad side of the shaft are separated from one another by slots made in the plug contact body. The document US 2006/0252 294 A1 shows an electrical socket contact with contact spring arms, the contact spring arms in the contacting area each being provided with an elongated gap extending in the plugging direction, which doubles the number of contact points for a plug contact introduced into the socket contact.

Es stellte sich die Aufgabe, eine gattungsgemäße Kontaktlamelle und einen eine solche Kontaktlamelle aufweisenden Steckverbinder auf einfache und kostengünstige Weise hinsichtlich der mechanischen und elektrischen Kontaktzuverlässigkeit zu verbessern.The object was to improve a generic contact lamella and a connector having such a contact lamella in a simple and inexpensive manner with regard to mechanical and electrical contact reliability.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.According to the invention, this object is achieved by the characterizing features of claim 1.

Die gegenüber der in der DE 10 2016 007 117 beschriebenen Ausführung vorgesehene Änderung besteht darin, die Kontakteinschnitte nicht vollständig geradlinig zu führen, sondern jeweils mit einer transversalen Ausbuchtung zu versehen.The opposite of that in the DE 10 2016 007 117 The change provided for the embodiment described consists in not guiding the contact incisions completely in a straight line, but rather providing them with a transverse bulge in each case.

Durch die geänderte Form der Kontakteinschnitte ändert sich zugleich die Form der Kontaktkufen, da durch die transversalen Ausbuchtungen der Kontakteinschnitte nun die äußeren Kontaktkufen neben den Ausbuchtungen verbreitert sind. Dieses ermöglicht es, die Lage der äußeren Kontaktpunkte nach innen, also von den Rändern der Kontaktarme weg, zu verschieben, wodurch diese Kontaktpunkte die Fläche des Steckerstifts sicher kontaktieren. Vorteilhaft ist auch, dass die Kontur des Stanzstempels zur Herstellung der Kontakteinschnitte im Vergleich zu einem ursprünglich geraden Stempel erheblich robuster ausgeführt werden kann und dieser dadurch eine höhere Standzeit hat und Kosten einspart.The changed shape of the contact incisions also changes the shape of the contact runners, since the transverse bulges of the contact incisions now widen the outer contact runners next to the bulges. This makes it possible to shift the position of the outer contact points inwards, that is to say away from the edges of the contact arms, as a result of which these contact points make reliable contact with the surface of the plug pin. It is also advantageous that the contour of the punch for producing the contact incisions can be made considerably more robust than an originally straight punch, which means that it has a longer service life and saves costs.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung gehen aus den abhängigen Ansprüchen und der nachfolgenden Beschreibung eines Ausführungsbeispiels anhand der Zeichnung hervor. Es zeigen

Figur 1
eine erfindungsgemäß ausgeführte Kontaktlamelle,
Figuren 2 und 3
jeweils eine Ansicht eines teilweise im Schnitt dargestellten Steckverbinderteils,
Figur 4
eine Kontaktlamelle nach dem Stand der Technik,
Figuren 5 und 6
je eine Kontaktlamelle nach dem Stand der Technik in einer Draufsicht,
Figur 7
eine erfindungsgemäß ausgeführte Kontaktlamelle in einer Draufsicht.
Advantageous refinements and developments of the invention emerge from the dependent claims and the following description of an exemplary embodiment with reference to the drawing. Show it
Figure 1
a contact lamella designed according to the invention,
Figures 2 and 3
each a view of a connector part shown partially in section,
Figure 4
a contact lamella according to the state of the art,
Figures 5 and 6
one contact lamella according to the state of the art in a top view,
Figure 7
a contact blade embodied according to the invention in a plan view.

Eine erfindungsgemäß ausgeführte federnde Kontaktlamelle 10 für ein buchsenartiges Steckverbinderteil ist in der Figur 1 dargestellt. Die Kontaktlamelle 10 ist als ein Stanzbiegeteil einstückig aus einem Blechstreifen 20 geformt.A resilient contact blade 10 designed according to the invention for a socket-like connector part is shown in FIG Figure 1 shown. The contact lamella 10 is formed in one piece from a sheet metal strip 20 as a stamped and bent part.

Zur Formung der Kontaktlamelle 10 wurde der durch Stanzen vorgeformte Blechstreifen 20 u-förmig umgebogen, wodurch die dadurch entstandenen U-Schenkel zwei einander gegenüberstehende Kontaktarme 31, 32 ausbilden. Die Kontaktarme 31, 32 sind dabei nicht parallel zueinander ausgerichtet sondern weisen über ihre Längsrichtung unterschiedliche Abstände zueinander auf. In jeweils einem mittleren Abschnitt 33, 34 ihrer Längserstreckungen ist der gegenseitige Abstand der Kontaktarme 31, 32 minimal.In order to form the contact lamella 10, the sheet metal strip 20, which was preformed by punching, was bent over in a U-shape, as a result of which the U-legs formed as a result form two contact arms 31, 32 opposite one another. The contact arms 31, 32 are not aligned parallel to one another but have different distances from one another over their longitudinal direction. The mutual spacing of the contact arms 31, 32 is minimal in a middle section 33, 34 of their longitudinal extensions.

Wie die Figur 1 weiter zeigt, fallen die mittleren Abschnitte 33, 34 der Kontaktarme 31, 32 nicht notwendigerweise mit den geometrischen Mitten der Kontaktarme 31, 32 zusammen. Die Bezeichnung bezieht sich vielmehr auf die Lage dieser Abschnitte 33, 34 zwischen dem die Kontaktarme 31, 32 verbindenden Biegebereich 22 und deren Endabschnitten 61, 62.As the Figure 1 further shows, the middle sections 33, 34 of the contact arms 31, 32 do not necessarily coincide with the geometric centers of the contact arms 31, 32. Rather, the term refers to the Position of these sections 33, 34 between the bending area 22 connecting the contact arms 31, 32 and their end sections 61, 62.

Die Endabschnitte 61, 62 der Kontaktarme 31, 32 sind durch angeformte und rechtwinklig abgebogene Stege 63, 64 seitlich miteinander verbunden und bilden einen rahmenförmigen Eingangsbereich 65 zum Einfügen eines zu einem komplementären Steckverbinderteil gehörenden Steckerstifts aus.The end sections 61, 62 of the contact arms 31, 32 are laterally connected to one another by molded webs 63, 64 bent at right angles and form a frame-shaped input area 65 for inserting a plug pin belonging to a complementary connector part.

Jeder Kontaktarm 31, 32 weist über den größten Teil seiner Längserstreckung einen Einschnitt 35, 36 auf, der den jeweiligen Kontaktarm 31, 32 in zwei nebeneinanderliegende Kontaktstege 41, 43 bzw. 42, 44 unterteilt. Im Bereich der mittleren Abschnitte 33, 34 ist in jeden Kontaktsteg 41, 42, 43, 44 wiederum ein weiterer Einschnitt eingebracht. Diese weiteren Einschnitte, die hier als Kontakteinschnitte 45, 46, 47, 48 bezeichnet werden, sind deutlich kürzer als die Einschnitte 35, 36 zwischen den Kontaktstegen 41, 42, 43, 44 und unterteilen jeden der Kontaktstege 41, 42, 43, 44 in jeweils zwei Kontaktkufen 51 - 58.Each contact arm 31, 32 has an incision 35, 36 over most of its longitudinal extent, which divides the respective contact arm 31, 32 into two adjacent contact webs 41, 43 and 42, 44, respectively. In the area of the middle sections 33, 34, a further incision is in turn made in each contact web 41, 42, 43, 44. These further incisions, which are referred to here as contact incisions 45, 46, 47, 48, are significantly shorter than the incisions 35, 36 between the contact webs 41, 42, 43, 44 and divide each of the contact webs 41, 42, 43, 44 into two contact runners 51 - 58 each.

Die Figuren 2 und 3 zeigen jeweils eine Ansicht eines teilweise im Schnitt dargestellten buchsenartigen Steckverbinderteils 1. Das Steckverbinderteil 1 besteht aus einem einstückig geformten Grundkörper 90, der sich funktional in einen Anschlussabschnitt 91 und in einen Kontaktabschnitt 92 unterteilen lässt. Der Anschlussabschnitt 91 ist hier als Crimpabschnitt ausgestaltet und dient zum Anschluss einer hier nicht bildlich dargestellten Anschlussleitung, deren Leiteradern mittels eines Crimpvorgangs mit dem Anschlussabschnitt 91 verbindbar sind.the Figures 2 and 3 each show a view of a socket-like plug connector part 1 shown partially in section. The plug connector part 1 consists of an integrally formed base body 90 which can be functionally divided into a connection section 91 and a contact section 92. The connection section 91 is designed here as a crimping section and serves to connect a connection line (not shown here), the conductor wires of which can be connected to the connection section 91 by means of a crimping process.

Der sich an den Anschlussabschnitt 91 anschließende Kontaktabschnitt 92 ist kastenförmig ausgebildet und in den Figuren 2 und 3 entlang seiner Längsrichtung geschnitten dargestellt. An die Oberseite des Kontaktabschnitts 92 ist eine federnde Rastlanze 93 angeformt, welche die Befestigung des Steckverbinderteils 1 in einem, hier nicht dargestellten, aus einem Isoliermaterial bestehenden Gehäusekörper unterstützt. Der kastenförmige Kontaktabschnitt 92 bildet einen Hohlraum aus, in den eine Kontaktlamelle 10 eingesetzt ist.The contact section 92 adjoining the connection section 91 is box-shaped and is inserted into the Figures 2 and 3 Shown cut along its longitudinal direction. A resilient latching lance 93 is formed on the upper side of the contact section 92, which the fastening of the connector part 1 in one, not shown here, from one Insulating material supports existing housing body. The box-shaped contact section 92 forms a cavity into which a contact blade 10 is inserted.

Das gesamte Steckverbinderteil 1 besteht somit aus zwei jeweils einstückig geformten Komponenten, nämlich dem Grundkörper 90 und der Kontaktlamelle 10. Der rahmenförmige Eingangsbereich 65 der Kontaktlamelle 10 schließt bündig mit der Eingangsöffnung des Kontaktabschnitts 92 des Grundkörpers 90 ab.The entire connector part 1 thus consists of two integrally formed components, namely the base body 90 and the contact lamella 10. The frame-shaped input region 65 of the contact lamella 10 is flush with the input opening of the contact section 92 of the base body 90.

Zum Vergleich mit der Kontaktlamelle 10 der Figur 1 ist in der Figur 4 eine Kontaktlamelle 10' nach dem Stand der Technik dargestellt, wie sie in der nicht vorveröffentlichten deutschen Patentanmeldung DE 10 2016 007 117 im Detail beschrieben ist.For comparison with the contact blade 10 of the Figure 1 is in the Figure 4 a contact blade 10 'according to the prior art, as shown in the not previously published German patent application DE 10 2016 007 117 is described in detail.

Die Kontaktlamelle 10' in der Figur 4 weist, anders als die Kontaktlamelle 10 in der Figur 1, über die Längsrichtung der Kontaktarme 31', 32' vollständig geradlinig geführte Einschnitte 35', 36', sowie auch vollständig geradlinig geführte Kontakteinschnitte 45', 46', 47', 48' in den Kontaktstegen 41', 42', 43', 44' auf. Hierdurch ergibt sich eine Anordnung von im wesentlichen rechteckförmigen Kontaktkufen 51' bis 58', wie sie für einen Kontaktarm 32' in der Figur 6 skizzenhaft dargestellt.The contact blade 10 'in the Figure 4 has, unlike the contact blade 10 in the Figure 1 , over the longitudinal direction of the contact arms 31 ', 32' completely linearly guided incisions 35 ', 36', as well as completely linearly guided contact incisions 45 ', 46', 47 ', 48' in the contact webs 41 ', 42', 43 ', 44 'on. This results in an arrangement of essentially rectangular contact runners 51 'to 58', as they are for a contact arm 32 'in FIG Figure 6 shown in sketch form.

Anhand der Figuren 5 bis 7 soll das zur Erfindung führende Problem näher erläutert werden, indem verschiedene Ausführungen von Kontaktlamellen 10", 10', 10 einander vergleichsweise gegenüber gestellt werden. Die Figuren 5 bis 7 zeigen jeweils einen horizontalen Schnitt durch ein Steckverbinderteil 1", 1', 1 mit einem eingefügten Steckerstift 2. Um die Lage von Kontaktpunkten 71, 72, 73, 74, 71 ', 72', 73', 74', 72", 74" unterhalb des eingefügten Steckerstifts 2 erkennbar zu machen, ist der Steckerstift 2 jeweils transparent dargestellt.Based on Figures 5 to 7 the problem leading to the invention is to be explained in more detail by comparing different versions of contact lamellas 10 ″, 10 ′, 10 with one another Figures 5 to 7 each show a horizontal section through a connector part 1 ″, 1 ′, 1 with an inserted connector pin 2 "To make it recognizable below the inserted connector pin 2, the connector pin 2 is shown transparently.

Die Figur 5 zeigt eine Kontaktlamelle 10" in einer Ausführung, wie sie aus der Patentschrift DE 44 39 105 C1 bekannt ist. Sie weist in einem Kontaktarm 32" einen Einschnitt 36" auf', der den Kontaktarm 32" in zwei als rechteckförmige Streifen ausgebildete Kontaktstege 42", 44" unterteilt. Auf jedem Kontaktsteg 42", 44" ist in der Mitte seiner Quererstreckung je ein Kontaktpunkt 74", 72" aufgebracht, der einen in die Kontaktlamelle 10" eingeschobenen Flachstecker 2 kontaktiert.the Figure 5 shows a contact lamella 10 ″ in an embodiment as described in the patent DE 44 39 105 C1 is known. It has an incision 36 "in a contact arm 32" which divides the contact arm 32 "into two contact webs 42", 44 "designed as rectangular strips. On each contact web 42", 44 "there is a contact point in the middle of its transverse extent 74 ″, 72 ″ applied, which makes contact with a flat plug 2 pushed into the contact lamella 10 ″.

Bei dem in der Figur 6 dargestellten Kontaktarm 32' ist jeder Kontaktsteg 42', 44' durch einen parallel zum Einschnitt 36' eingebrachten kürzeren Kontakteinschnitt 46', 48' zusätzlich in jeweils zwei Kontaktkufen 53', 54', 51', 52' unterteilt, wie dieses in der nicht vorveröffentlichten deutschen Patentanmeldung DE 10 2016 007 117 näher beschrieben ist. Da jede der Kontaktkufen 51', 52', 53', 54' einen Kontaktpunkt 71', 72', 73', 74' aufweist, ergeben sich hierdurch vier Kontaktpunkte 71', 72', 73', 74' je Kontaktarm 32'. Durch die gegenüber der Ausführung der Kontaktlamelle 10" der Figur 5 verdoppelte Anzahl von Kontaktpunkten, werden die elektrischen Eigenschaften gegenüber der in der Figur 5 dargestellten Ausführung grundsätzlich verbessert.The one in the Figure 6 illustrated contact arm 32 ', each contact web 42', 44 'is additionally subdivided into two contact runners 53', 54 ', 51', 52 'by a shorter contact incision 46', 48 'made parallel to the incision 36', as is not the case in FIG pre-published German patent application DE 10 2016 007 117 is described in more detail. Since each of the contact runners 51 ', 52', 53 ', 54' has a contact point 71 ', 72', 73 ', 74', this results in four contact points 71 ', 72', 73 ', 74' per contact arm 32 ' . Due to the opposite of the execution of the contact blade 10 "of the Figure 5 doubling the number of contact points, the electrical properties are compared to that in the Figure 5 The embodiment shown has been fundamentally improved.

Allerdings ist in der skizzenhaften Darstellung der Figur 6 ersichtlich, dass die auf den außenliegenden Kontaktkufen 52', 54' angeordneten Kontaktpunkte 72', 74' relativ weit außen, das heißt nah den Rändern des Kontaktarms 32' liegen.However, in the sketchy representation of the Figure 6 It can be seen that the contact points 72 ', 74' arranged on the outer contact runners 52 ', 54' lie relatively far to the outside, that is to say close to the edges of the contact arm 32 '.

Hierdurch kann es vorkommen, dass bei ungünstiger Toleranzlage eines eingefügten Steckerstifts 2 wenigstens einer der äußeren Kontaktpunkte 72', 74' nicht auf der Oberfläche sondern an einem Kantenabschnitt des flachen Steckerstifts 2 zur Anlage kommen, wodurch die elektrischen Verbindungseigenschaften deutlich beeinträchtigt werden.As a result, if the tolerance position of an inserted plug pin 2 is unfavorable, at least one of the outer contact points 72 ', 74' does not come to rest on the surface but on an edge section of the flat plug pin 2, which significantly affects the electrical connection properties.

Zur Lösung des beschriebenen Problems, ist bei der in der Figur 7 skizzierten erfindungsgemäßen Kontaktlamelle 10 vorgesehen, die beiden äußeren Kontakte 72, 74 etwas zur Mitte des Kontaktarms 32 zu rücken. Dieses wird dadurch erreicht, dass die beiden Kontakteinschnitte 46, 48 nicht vollständig geradlinig ausgeführt sind, sondern jeweils eine transversale Ausbuchtung 81, 82 nach innen aufweisen. Die Ausbuchtungen 81, 82 ermöglichen es jeweils, die neben den Ausbuchtungen 81, 82 liegenden Abschnitten 541, 521 der Kontaktkufe 54, 52 etwas breiter auszuführen, wodurch dort jeweils mehr Platz für einen eingeprägten Kontaktpunkt 74, 71 zur Verfügung steht und dieser entsprechend weiter zur Mitte des Kontaktarms 32 gerückt werden kann.To solve the problem described, the in Figure 7 Outlined contact blade 10 according to the invention is provided to move the two outer contacts 72, 74 somewhat towards the center of the contact arm 32. This is achieved in that the two contact incisions 46, 48 are not completely straight, but each have a transverse bulge 81, 82 towards the inside. The bulges 81, 82 each allow the sections 541, 521 of the contact runner 54, 52 lying next to the bulges 81, 82 to be made somewhat wider, so that there is more space available for an embossed contact point 74, 71 and this further to the Center of the contact arm 32 can be moved.

Um Ausbuchtungen 81, 82 an beiden Kontaktstegen 42, 44 des Kontaktarms 32 ausbilden zu können, sind die Ausbuchtungen 81, 82 in der Längsrichtung des Kontaktarms 32 gegeneinander versetzt angeordnet. Jeweils ein auf einer äußeren Kontaktkufe 54, 52 und ein auf einer inneren Kontaktkufe 51, 53 angeordneter Kontaktpunkt 74, 71; 72, 73 sind jeweils parallel zueinander auf gleicher Höhe der Längserstreckung jeweils in einer Linie A, B angeordnet.In order to be able to form bulges 81, 82 on both contact webs 42, 44 of the contact arm 32, the bulges 81, 82 are arranged offset from one another in the longitudinal direction of the contact arm 32. In each case one contact point 74, 71 arranged on an outer contact runner 54, 52 and one on an inner contact runner 51, 53; 72, 73 are each arranged parallel to one another at the same level of the longitudinal extent, in each case in a line A, B.

Um in den Kontaktarm 32 die Kontakteinschnitte 46, 48 mit transversalen Ausbuchtungen 81, 82 einbringen zu können, ist es erforderlich, dass auch der die Kontaktstege 42, 44 trennende Einschnitt 36 nicht vollständig geradlinig geführt ist, sondern dem Verlauf der Kontakteinschnitte 46, 48 folgt. Der Einschnitt 36 bildet daher selber zwei Ausbuchtungen 83, 84 aus, wodurch der Einschnitt 36 und die Kontakteinschnitte 46, 48 jeweils zueinander parallel verlaufen.In order to be able to make the contact incisions 46, 48 with transverse bulges 81, 82 in the contact arm 32, it is necessary that the incision 36 separating the contact webs 42, 44 is not completely straight, but rather follows the course of the contact incisions 46, 48 . The incision 36 itself therefore forms two bulges 83, 84, as a result of which the incision 36 and the contact incisions 46, 48 each run parallel to one another.

Die Kontaktpunkte 71, 72, 73, 74 können durch einen Prägestempel in einem Arbeitsschritt in den Kontaktarm 32 eingeformt werden. Gleiches erfolgt zugleich oder danach an dem nur in der Figur 1 dargestellten Kontaktarm 31, und zwar noch vor dem Biegeformen der Kontaktlamelle 10.The contact points 71, 72, 73, 74 can be molded into the contact arm 32 in one work step by means of an embossing die. The same takes place at the same time or afterwards on that only in the Figure 1 contact arm 31 shown, even before the contact blade 10 is bent.

BezugszeichenReference number

1, 1', 1"1, 1 ', 1 "
SteckverbinderteilConnector part
22
SteckerstiftConnector pin
10, 10', 10"10, 10 ', 10 "
KontaktlamelleContact lamella
2020th
BlechstreifenSheet metal strips
2222nd
BiegebereichBending area
31, 32, 31', 32', 32"31, 32, 31 ', 32', 32 "
KontaktarmeContact arms
33, 3433, 34
mittlere Abschnittemiddle sections
35, 36, 35', 36'; 36"35, 36, 35 ', 36'; 36 "
EinschnitteCuts
41, 42, 43, 44, 41', 42', 43', 44'; 42", 44"41, 42, 43, 44, 41 ', 42', 43 ', 44'; 42 ", 44"
KontaktstegeContact bars
45, 46, 47, 48, 45', 46', 47', 48'45, 46, 47, 48, 45 ', 46', 47 ', 48'
KontakteinschnitteContact incisions
51 - 58, 51' - 58'51 - 58, 51 '- 58'
KontaktkufenContact skids
521, 541521, 541
verbreiterte Abschnittewidened sections
61, 6261, 62
EndabschnitteEnd sections
63, 6463, 64
StegeBridges
6565
EingangsbereichEntrance area
71, 72, 73, 74, 71', 72', 73', 74', 72", 74"71, 72, 73, 74, 71 ', 72', 73 ', 74', 72 ", 74"
KontaktpunkteContact points
81, 82, 83, 8481, 82, 83, 84
AusbuchtungenBulges
9090
GrundkörperBase body
9191
AnschlussabschnittConnection section
9292
KontaktabschnittContact section
9393
RastlanzeLocking lance
A, BAWAY
LinienLines

Claims (6)

  1. Contact blade (10) for a connector part (1) forming a socket,
    formed from a sheet metal strip (20) bent in a U-shape, the U-limbs of which form two contact arms (31, 32) which are opposite one another, which are designed to converge in
    a central section (33, 34) of their longitudinal extensions, and
    which are each subdivided into two contact arms (41, 42, 43, 44) which are parallel to one another and lie next to one another by means of incisions (35, 36) which are guided over the largest part of their longitudinal extensions,
    characterised in
    in that, in the region of greatest convergence of the contact arms (31, 32), a contact incision (45, 46, 47, 48) is formed in each of the contact webs (41, 42, 43, 44) in the longitudinal direction thereof, which contact incision (45, 46, 47, 48) is in each case shorter than the incision (35, 36) running parallel thereto in the respective contact arm (31, 32), as a result of which each contact web (41, 42, 43, 44) forms two contact runners (51 to 58) in sections on both sides of its contact incision (45, 46, 47, 48),
    in that the contact incisions (45, 46, 47, 48) each have a transverse bulge (81, 82) towards the centre of the same contact arm (31, 32) in each case, as a result of which the contact runners (52, 54, 55, 58), which are outer on each contact arm (31, 32), each have, in addition to a bulge (81, 82), each forming a widened portion (521, 541),
    in that the recesses (35, 36) each form two bulges (83, 84), whereby the recesses (35, 36) and the contact recesses (45, 46, 46, 48) each run parallel to one another, and
    in that four contact points (71, 72, 73, 74) are arranged on each contact arm (31, 32) in each case, two contact points (71, 74, 73, 74) being arranged next to one another in a longitudinal direction of the contact arm (31, 32); 72, 73) are arranged next to one another in a line (A, B), in each case one of the contact points (74, 72) being arranged on a widened section (541, 521) of the outer contact runner (54, 52) of one contact web (42, 44) and the other contact point (71, 73) being arranged on the inner contact runner (51, 53) of the respective other contact web (44, 42) in the case of each line (A, B).
  2. Contact blade according to claim 1, characterised in that a contact point (72, 74) is stamped into each of the widened sections (521, 541), which contact point is provided for contacting a plug pin (2).
  3. Contact blade according to claim 1, characterised in that the transverse protrusions (81, 82) of the respective same contact arm (31, 32) are arranged one behind the other with respect to the longitudinal direction of the contact arm (31, 32).
  4. Contact blade according to claim 1, characterised in that a further contact point (71, 73) is arranged on each inner contact runner (51, 53) of each contact web (44, 42).
  5. A contact blade according to claim 1, characterised in that the contact blade (10) is integrally formed from a resilient metal.
  6. A socket-forming connector part consisting of an integrally moulded base body (90) forming a terminal portion (91) and a box-like contact portion (92), wherein a contact blade (10) according to claim 1 is inserted into the box-like contact portion (92).
EP18702651.3A 2017-01-31 2018-01-29 Contact blade for a socket-like connector part, and socket-like connector part Active EP3577723B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017001166.4A DE102017001166A1 (en) 2017-01-31 2017-01-31 Contact blade for a socket-like connector part and female connector part
PCT/EP2018/052109 WO2018141682A1 (en) 2017-01-31 2018-01-29 Contact blade for a socket-like connector part, and socket-like connector part

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Publication Number Publication Date
EP3577723A1 EP3577723A1 (en) 2019-12-11
EP3577723B1 true EP3577723B1 (en) 2021-09-15

Family

ID=61148206

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EP18702651.3A Active EP3577723B1 (en) 2017-01-31 2018-01-29 Contact blade for a socket-like connector part, and socket-like connector part

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US (1) US10389054B1 (en)
EP (1) EP3577723B1 (en)
JP (1) JP6910449B2 (en)
KR (1) KR102425767B1 (en)
CN (1) CN109891678B (en)
BR (1) BR112019012162A2 (en)
DE (1) DE102017001166A1 (en)
ES (1) ES2899298T3 (en)
MX (1) MX2019008975A (en)
WO (1) WO2018141682A1 (en)

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Publication number Publication date
EP3577723A1 (en) 2019-12-11
WO2018141682A1 (en) 2018-08-09
ES2899298T3 (en) 2022-03-10
MX2019008975A (en) 2019-09-13
DE102017001166A1 (en) 2018-08-02
US10389054B1 (en) 2019-08-20
CN109891678B (en) 2020-09-11
JP6910449B2 (en) 2021-07-28
KR20190108098A (en) 2019-09-23
BR112019012162A2 (en) 2019-11-05
CN109891678A (en) 2019-06-14
KR102425767B1 (en) 2022-07-26
US20190237891A1 (en) 2019-08-01
JP2020505726A (en) 2020-02-20

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