EP2812949B1 - Electrical plug connector for electrical connection by means of ultrasonic welding - Google Patents

Electrical plug connector for electrical connection by means of ultrasonic welding Download PDF

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Publication number
EP2812949B1
EP2812949B1 EP13718104.6A EP13718104A EP2812949B1 EP 2812949 B1 EP2812949 B1 EP 2812949B1 EP 13718104 A EP13718104 A EP 13718104A EP 2812949 B1 EP2812949 B1 EP 2812949B1
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EP
European Patent Office
Prior art keywords
leg
plug connector
electrical plug
connection portion
electrical
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.)
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EP13718104.6A
Other languages
German (de)
French (fr)
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EP2812949A1 (en
Inventor
Till Beck
Peter BEDNARCZYK
Stefan Schulz
Wolfgang Langhoff
Danica Holley
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Amphenol Tuchel Electronics GmbH
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Amphenol Tuchel Electronics GmbH
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Publication date
Priority claimed from DE201210002910 external-priority patent/DE102012002910B4/en
Priority claimed from DE202012001446U external-priority patent/DE202012001446U1/en
Application filed by Amphenol Tuchel Electronics GmbH filed Critical Amphenol Tuchel Electronics GmbH
Publication of EP2812949A1 publication Critical patent/EP2812949A1/en
Application granted granted Critical
Publication of EP2812949B1 publication Critical patent/EP2812949B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H01R4/023—Soldered or welded connections between cables or wires and terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H01R4/029—Welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding
    • 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
    • H01R13/04—Pins or blades for co-operation with sockets

Definitions

  • the invention relates to an electrical connector according to the preamble of claim 1.
  • the invention particularly relates to an electrical connector designed as a contact pin for electrical connection to a cable by means of ultrasonic welding.
  • Electrical connectors are intended, via their connector pairs, thus on their female parts and connector parts z. B. between an electrical line and another electrical line or an electrical unit to produce a re-releasable electrical connection.
  • solder joints In addition to screw crimps, solder joints, press-fit or piercing and other connection techniques are known, such as form-fitting connections, in particular welded joints.
  • the document DE 198 00 451 A1 discloses an electrical connector according to the preamble of claim 1.
  • Object of the present invention is to provide an electrical connector or a contact pin for electrical connection by means of an ultrasonic welding process, which overcomes the aforementioned problems and in particular with respect to the space has an optimized geometry.
  • the object is to provide such a contact pin, which is universal and inexpensive and can be used in many applications.
  • a plug connector in particular in the form of a solid contact pin has the following namely a contact portion, which is preferably connected via a transition portion with a connection portion, wherein the connection portion is formed for electrical connection to an electrical line by means of ultrasonic welding and therefore in this region, preferably in the transition region between the connection section and the adjoining transition or contact section, a breakwater unit or a geometric breakwater element is arranged for refracting the ultrasonic waves.
  • breakwater element The technical operation of the breakwater element can be seen in the fact that cracks and damage occur in the region of the connection section, in particular at its transition region, to the contact section or the intermediate transition section when energy is introduced by ultrasonic welding, in particular by the occurring waves.
  • Such transition sections are zones that are particularly stressed during ultrasonic welding.
  • connection section To prevent damage, it is therefore necessary to provide a suitably designed breakwater element, preferably a correspondingly formed bead, on the connection section.
  • an electrical connector which has a contact section, a transition section adjoining the contact section and a connection section adjoining the transition section, wherein the connection section is for electrical connection to an electrical line is formed by ultrasonic welding and wherein the connecting portion is formed via at least one geometric breakwater element, preferably a protruding bead for breaking waves during ultrasonic welding.
  • connection section has a bearing surface, preferably a flat contact surface for a line to be connected or the contact end of a line to be connected.
  • the connecting portion is formed as an L-shaped connecting portion and that of a first leg and a substantially orthogonally oriented second leg, wherein each leg is part of the connecting portion.
  • the two legs are thus oriented substantially perpendicular to each other in connection and form the L-shaped terminal section shape.
  • Such a geometry is therefore space-optimized and simultaneously provides a stop for the cable, which is provided by the first leg and a support surface for the cable, which is provided by the second leg.
  • the first leg is arranged at the transition section.
  • the second leg is advantageously connected in an orientation orthogonal to the first leg with this leg to form an L-shaped connection section, which is integrally formed either in its overall orientation in the insertion direction with the transition section or perpendicular to the insertion direction at the transition section.
  • a preferred embodiment of the invention in the form of an elongated connector in which the first leg is arranged at the transition portion in the insertion direction so that the second leg substantially in the extension direction and thus in the insertion direction the contact pin is arranged.
  • the support surface of the second leg has a transition surface which is connected to the leg inner surface formed by the first leg and extends directly into it.
  • half a "half pipe” is approximately formed in which the bearing surface of the second leg forms the bottom and the curved transition surface with the inner side surface of the leg represents the rounding of the "half pipe" laterally.
  • the inner surfaces i. H. the surfaces facing the other leg connected to each other via a curved transition surface.
  • the curved transition surface substantially corresponds approximately to a segment of the inner circumference of a hollow cylinder of about 70 ° to 90 ° radians.
  • the radius of curvature of the curved transition surface is advantageously constant over the entire transition surface, wherein the geometric breakwater element protrudes from the transition surface.
  • the geometric element is formed as a bulge which also protrudes outwardly from the transition surface and which is also curved along the curvature.
  • the bead extends in its course over the entire curved surface over the entire height of the first leg and extends with its other end into the flanks or in the surface of the second leg inside.
  • the bead is located approximately in the middle of the transition surface with respect to the side edges of the connection section formed by the L.
  • the projection of the bead is oriented parallel to the insertion direction of the contact pin.
  • the forming in the contact pin longitudinal ultrasonic waves are thus broken by the In longltudinaler orientation formed breakwater element and inhibited in their effect, so that the contact pin can be connected without damage by means of ultrasonic welding with a line.
  • connection portion and the geometric breakwater element that is, preferably the bead, materially formed of a material, preferably made of pure copper or a copper alloy.
  • the use of copper or a copper alloy with a high copper content is preferably used because of the particularly good electrical conductivity.
  • the decisive factor for the technical effect of the contact according to the invention is the suitable design of a breakwater element between or at the connection section for the transition of the transition or contact section.
  • a further preferred embodiment is an electrical connector according to one or more of the preceding features, wherein the contact pin consists of a metallic material and wherein the contact pin is a galvanic Surface coating and the transition section has a support surface which has no surface coating and no other applied coating.
  • a further preferred embodiment is an electrical connector according to one or more of the preceding features, wherein that the connecting portion has a preferably flat bearing surface for an electrical line to be connected.
  • a further preferred embodiment is an electrical connector according to one or more of the preceding features wherein the metallic material of the contact pin is made of copper or a copper alloy with a high copper content and / or the galvanic coating of the contact pin made of silver or gold or tin.
  • Fig. 1 is the electrical connector 1 in the form of a contact pin 2 is formed.
  • the contact pin 2 is subdivided into the sections A, B and C.
  • the section C represents the contact section 3 of the contact pin 2.
  • the contact section 3 is used for contacting with a corresponding mating connector.
  • a transition section 4 is divided. Between the transition section 4 and the contact section 3, a latching contour 8 is arranged for latching with a latching element on the mating connector.
  • the connection section 5 At the transition section 4 closes in part A of the contact pin 2, the connection section 5 at.
  • connection section 5 of the contact pin 2 serves for the electrical and mechanical connection to a cable or a line 100 to be connected.
  • the connection section 5 is formed as an L-shaped connection section, part of the L-form being part of the transition section.
  • the L-shape of the connection section 5 results from a first leg 50 and a second leg 51 arranged orthogonally to it.
  • the leg 50 is connected directly to the transition section 4 with this.
  • the leg 50 On the opposite side of the connection, the leg 50 has a leg surface 40, which is formed substantially horizontally and curved in its further course with a radius of curvature R and opens into a bearing surface 10 of the second leg 51 and merges into it.
  • the second leg 51 is formed as a substantially flat leg, which is arranged in the axial direction of the contact pin 2 and that at its end. The bottom and thus the support surface 10 opposite side of the second leg 51 is also advantageously flat to achieve a minimum space.
  • the contact portion 3 and the transition portion 4 are formed with a first diameter D1, substantially as cylindrical portions.
  • the connection section 5 protrudes with a projection 11 over the outer contour and thus over the enveloping shape of the cylindrical outer shell of the contact pin 2 formed by the contact section 3 and the transition section 4.
  • the projection 11 of the connector holds a mechanical abutment against, for example, a housing to ensure that the contact pin 2 can be brought with its contact section 3 in the correct insertion position.
  • the course of the support surface 10 is formed by the second leg 51 to the leg surface 40 of the first leg 50 as a curved surface.
  • the curvature follows substantially in the form of half of a "half pipe". Ie. the bottom surface is formed by the support surface 10, while the half-pipe side surfaces are formed by the curved leg surface 40.
  • the breakwater 41 is formed in the present embodiment as a bead and that a curved bead, whose projection, as in Fig. 2 it can be seen extending in the axial direction S or plug-in direction S of the contact pin 2.
  • the bead 41 extends from the support surface 10 along the axial direction over the curvature of the curved leg surface 40 up to the end 53 and approximately to the upper end of the projection 11th
  • the hump formed in this way serves as a breakwater 41 in the connection section 5, in order in particular to break longitudinal waves.
  • a stripped end of a cable 100 is to be applied to the support surface 10 and by means of ultrasonic waves, ie by means of ultrasonic welding, an ultrasonic welding connection between the cable 100 and the contact pin 2 and its connecting portion 5 are formed.
  • the occurring longitudinal waves and ultrasonic waves are refracted by the breakwater 41 at the "critical" transition to the transition section 5, so that the energy of the ultrasonic waves, in particular in the region of the transition from the connection section 5 to the transition section 4, leads to any dysfunctional disturbances or material damage.
  • Fig. 2 it can be seen that the projection or the bead 41 are arranged substantially in the middle between the side edges 42 of the legs 50, 51.
  • two parallel breakwaters 41, d. H. two humps or two beads 41 may be arranged side by side in the transition region, the geometric formation of which causes the refraction of ultrasonic waves.
  • connection portion 5 has at its bearing surface 10 no surface coating, so that a contact takes place directly with the material of the contact pin 2.
  • the material of the contact pin 2 is formed as a copper material or a copper alloy with a high copper content.
  • the contact section 3 can be advantageously provided with a surface coating, so that the electrical connector according to the invention can be provided inexpensively over partial coatings and is suitable in a favorable Welse for ultrasonic welding.
  • the length of the second leg 51 With regard to the heat input, it has proven to be advantageous to provide the length of the second leg 51 with its length of about 25% to 40% of the total length of the contact pin 2.
  • the first leg 50 is located approximately in one third of the total length of the contact pin 2 spaced from the end of the connection portion 5. Two thirds of the length of the contact pin 2 are formed by the transition section 4 and the contact portion. 3
  • Fig. 3 is a perspective view of the contact pin 2 similar to the embodiment of Fig. 1 and Fig. 2 shown

Description

Die Erfindung betrifft einen elektrischen Steckverbinder nach dem Oberbegriff des Patentanspruch 1.The invention relates to an electrical connector according to the preamble of claim 1.

Die Erfindung betrifft insbesondere einen elektrischen Steckverbinder ausgebildet als Kontaktstift zur elektrischen Verbindung mit einem Kabel mittels Ultraschallschweißverfahren.The invention particularly relates to an electrical connector designed as a contact pin for electrical connection to a cable by means of ultrasonic welding.

Stand der TechnikState of the art

Elektrische Steckverbinder sind dafür vorgesehen, über ihre Steckverbinderpaare, somit über ihre Buchsenteile und Steckerteile z. B. zwischen einer elektrischen Leitung und einer weiteren elektrischen Leitung bzw. einem elektrischen Aggregat eine wieder lösbare elektrische Verbindung herzustellen.Electrical connectors are intended, via their connector pairs, thus on their female parts and connector parts z. B. between an electrical line and another electrical line or an electrical unit to produce a re-releasable electrical connection.

Dabei sind im Stand der Technik unterschiedliche Verbindungsmethoden zum Anschließen eines Kabels bzw. einer elektrischen Leitung an den Steckverbinder bekannt.Different connection methods for connecting a cable or an electrical line to the connector are known in the prior art.

Neben Schraubverbindungen sind Crimpverbindungen, Lötverbindungen, Einpress- bzw. Piercingverbindungen und andere Verbindungstechniken bekannt, wie formschlüssige Verbindungen, insbesondere Schweißverbindungen.In addition to screw crimps, solder joints, press-fit or piercing and other connection techniques are known, such as form-fitting connections, in particular welded joints.

In den meisten Applikationen ist es regelmäßig erwünscht, eine besonders dauerhafte Verbindung zwischen dem Kontakt eines elektrischen Steckverbinders und dem anzuschließenden Kabel herzustellen.In most applications, it is regularly desirable to make a particularly durable connection between the contact of an electrical connector and the cable to be connected.

Insbesondere in der Automobilindustrie werden hohe Anforderungen an die Dauerhaftigkeit und Zuverlässigkeit einer elektrischen Verbindung gestellt.Particularly in the automotive industry, high demands are placed on the durability and reliability of an electrical connection.

Insbesondere ist es erforderlich, dass die mit dem Kontakt zu verbindende Leitung sicher und dauerhaft auch unter Temperaturschwankungen und mechanischen Schwingungen und Beeinträchtigungen im Fahrbetrieb nicht zu einem Lösen der Verbindung führen.In particular, it is necessary that the line to be connected to the contact safely and permanently, even under temperature fluctuations and mechanical vibrations and impairments during driving do not lead to a loosening of the connection.

Auch die aktuellen und zukünftigen Entwicklungen der Elektromotoren und Hybridtechnik im Automobilsektor erfordern Kontaktanordnungen mit hoher Stromtragfähigkeit, die auch bei erhöhten Temperaturen, insbesondere durch Eigenerwärmung, eine sichere Verbindung darstellen.The current and future developments of electric motors and hybrid technology in the automotive sector require contact arrangements with high current carrying capacity, which represent a secure connection even at elevated temperatures, in particular by self-heating.

Im Temperaturwechselbetrieb eignen sich insbesondere solche Kontaktmaterialien nicht, die in folge von Relaxationsprozessen bei der wechselnden Temperaturerhöhung und Abkühlung auf Dauer versagen und sich möglicherweise vom Kabel lösen.In the temperature change operation, in particular, such contact materials are not suitable, which fail as a result of relaxation processes in the changing temperature increase and cooling in the long term and possibly detach from the cable.

Als besonders geeignetes Schweißverfahren zur Herstellung hochfester Verbindungen bestimmter Werkstoffe hat sich das Ultraschallschweißverfahren erwiesen, das wiederum erhebliche Probleme bereitet bei der Verbindung gewisser Kontaktmaterialien.A particularly suitable welding method for producing high-strength compounds of certain materials, the ultrasonic welding has proven, which in turn causes considerable problems in the connection of certain contact materials.

So gibt es diverse Versuche dazu, welche Materialschädigungen auftreten beim Eintrag von ausreichender Schweißenergie durch Ultraschallschweißen.Thus, there are various attempts to which material damage occur when entering sufficient welding energy by ultrasonic welding.

Bei Materialprüfungen wurde festgestellt, dass die Anschlussabschnitte von Kontaktstiften teilweise erhebliche Schäden davontragen und zur Rissbildung neigen, wenn ein Kupferkabel mit einem Kupferkontakt mittels Ultraschallschweißen verbunden wird.In material testing, it has been found that the terminal portions of contact pins are sometimes severely damaged and tend to crack when a copper wire is connected to a copper contact by ultrasonic welding.

Darüber hinaus bestehen grundsätzliche Fragen zur korrekten Ausbildung von Kontaktgeometrien zur zuverlässigen Ausbildung einer Ultraschallschweißung mit einem Kabel.In addition, there are fundamental questions about the correct formation of contact geometries for the reliable formation of an ultrasonic welding with a cable.

Das Dokument DE 198 00 451 A1 offenbart einen elektrischen Steckverbinder gemäss der Präambel vom Anspruch 1.The document DE 198 00 451 A1 discloses an electrical connector according to the preamble of claim 1.

Aufgabe der vorliegenden Erfindung liegt darin, einen elektrischen Steckverbinder bzw. einen Kontaktstift zur elektrischen Verbindung mittels eines Ultraschallschweißverfahrens bereitzustellen, der vorbesagte Probleme überwindet und insbesondere in Bezug auf den Bauraum eine optimierte Geometrie aufweist.Object of the present invention is to provide an electrical connector or a contact pin for electrical connection by means of an ultrasonic welding process, which overcomes the aforementioned problems and in particular with respect to the space has an optimized geometry.

Darüber hinaus besteht die Aufgabe darin, einen solche Kontaktstift bereitzustellen, der universell und kostengünstig einsetzbar ist und bei vielen Anwendungen Verwendung finden kann.In addition, the object is to provide such a contact pin, which is universal and inexpensive and can be used in many applications.

Diese Aufgabe wird mit den Merkmalen des Anspruch 1 gelöst.This object is achieved with the features of claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous embodiments of the invention are specified in the subclaims.

Der Erfindung liegt der Gedanke zu Grunde, dass ein Steckverbinder, insbesondere in Ausgestaltung eines massiven Kontaktstiftes folgendes aufweist und zwar einen Kontaktabschnitt, der vorzugsweise über einen Übergangsabschnitt mit einem Anschlussabschnitt verbunden ist, wobei der Anschlussabschnitt ausgebildet ist zur elektrischen Verbindung mit einer elektrischen Leitung mittels Ultraschallschweißens und daher in diesem Bereich, vorzugsweise im Obergangsbereich zwischen dem Anschlussabschnitt und dem sich daran anschließenden Übergangs- bzw. Kontaktabschnitt eine Wellenbrechereinheit bzw. ein geometrisches Wellenbrecherelement angeordnet ist zur Brechung der Ultraschallwellen.The invention is based on the idea that a plug connector, in particular in the form of a solid contact pin has the following namely a contact portion, which is preferably connected via a transition portion with a connection portion, wherein the connection portion is formed for electrical connection to an electrical line by means of ultrasonic welding and therefore in this region, preferably in the transition region between the connection section and the adjoining transition or contact section, a breakwater unit or a geometric breakwater element is arranged for refracting the ultrasonic waves.

Die technische Wirkungsweise des Wellenbrecherelementes ist darin zu sehen, dass beim Eintrag von Energie mittels Ultraschallschweißens, insbesondere durch die auftretenden Wellen, Risse und Schäden im Bereich des Anschlussabschnittes, insbesondere an dessen Übergangsbereich, zum Kotaktabschnitt bzw. dem dazwischen liegenden Übergangsabschnitt auftreten. Solche Übergangsabschnitte sind Zonen, die beim Ultraschallschweißen besonders belastet werden.The technical operation of the breakwater element can be seen in the fact that cracks and damage occur in the region of the connection section, in particular at its transition region, to the contact section or the intermediate transition section when energy is introduced by ultrasonic welding, in particular by the occurring waves. Such transition sections are zones that are particularly stressed during ultrasonic welding.

Zur Verhinderung von Schäden ist es daher notwendig, ein geeignet ausgebildetes Wellenbrecherelement, vorzugsweise eine entsprechend ausgebildete Wulst, am Anschlussabschnitt vorzusehen.To prevent damage, it is therefore necessary to provide a suitably designed breakwater element, preferably a correspondingly formed bead, on the connection section.

Erfindungsgemäß wird daher ein elektrischer Steckverbinder vorgeschlagen, der einen Kontaktabschnitt, einen sich an den Kontaktabschnitt anschließenden Übergangsabschnitt und einen sich an den Übergangsabschnitt anschließenden Anschlussabschnitt aufweist, wobei der Anschlussabschnitt zur elektrischen Verbindung mit einer elektrischen Leitung mittels Ultraschallschweißens ausgebildet ist und wobei der Anschlussabschnitt über mindestens ein geometrisches Wellenbrecherelement, vorzugsweise eine hervorstehende Wulst zur Wellenbrechung beim Ultraschallschweißen ausgebildet ist.According to the invention, therefore, an electrical connector is proposed which has a contact section, a transition section adjoining the contact section and a connection section adjoining the transition section, wherein the connection section is for electrical connection to an electrical line is formed by ultrasonic welding and wherein the connecting portion is formed via at least one geometric breakwater element, preferably a protruding bead for breaking waves during ultrasonic welding.

Der Anschlussabschnitt weist eine Auflagerfläche, vorzugsweise eine flache Auflagefläche für eine anzuschließende Leitung bzw. das Kontaktende einer anzuschließenden Leitung auf.The connection section has a bearing surface, preferably a flat contact surface for a line to be connected or the contact end of a line to be connected.

In einer besonders vorteilhaften Weise ist der Anschlussabschnitt als ein L-förmiger Anschlussabschnitt ausgebildet und zwar aus einem ersten Schenkel und einem dazu im wesentlichen orthogonal orientierten zweiten Schenkel, wobei jeder Schenkel Teil des Anschlussabschnittes ist. Die beiden Schenkel stehen folglich im wesentlichen senkrecht zueinander orientiert in Verbindung und bilden die L-förmige Anschlussabschnittform.In a particularly advantageous manner, the connecting portion is formed as an L-shaped connecting portion and that of a first leg and a substantially orthogonally oriented second leg, wherein each leg is part of the connecting portion. The two legs are thus oriented substantially perpendicular to each other in connection and form the L-shaped terminal section shape.

Hierdurch ist gewährleistet, dass ein idealer Bauraum für den elektrischen Steckverbinder zur Verfügung steht, da bei ausreichend dünner Ausbildung des zweiten Schenkels der mit Vorteil auch die Auflagefläche für die Leitung ausbildet, nur so dick gewählt wird, dass die Gesamtdicke der Leitung und des Schenkels in etwa der Dicke bzw. unwesentlich größer als die Dicke des gesamten Kontaktes ist.This ensures that an ideal space for the electrical connector is available, since at sufficiently thin training of the second leg of which also forms the support surface for the line, is chosen only so thick that the total thickness of the line and the leg in is about the thickness or slightly larger than the thickness of the entire contact.

Eine solche Geometrie Ist daher bauraumoptimiert und bietet gleichzeitig einen Anschlag für das Kabel, welches durch den ersten Schenkel bereitgestellt wird und eine Auflagefläche für das Kabel, welche durch den zweiten Schenkel bereitgestellt wird.Such a geometry is therefore space-optimized and simultaneously provides a stop for the cable, which is provided by the first leg and a support surface for the cable, which is provided by the second leg.

In einer vorteilhaften Ausbildung ist der erste Schenkel am Übergangsabschnitt angeordnet.In an advantageous embodiment, the first leg is arranged at the transition section.

Ferner ist mit Vorteil der zweite Schenkel im wesentlichen in einer zum ersten Schenkel orthogonalen Orientierung mit diesem Schenkel unter Bildung eines L-förmigen Anschlussabschnittes verbunden, der entweder in seiner Gesamtorientierung in Steckrichtung mit dem Übergangsabschnitt oder senkrecht zur Steckrichtung am Übergangsabschnitt angeformt ist.Furthermore, the second leg is advantageously connected in an orientation orthogonal to the first leg with this leg to form an L-shaped connection section, which is integrally formed either in its overall orientation in the insertion direction with the transition section or perpendicular to the insertion direction at the transition section.

Um im wesentlichen die Schädigungen durch die Longitudinalwellen beim Ultraschallschweißen zu unterbinden, ist eine bevorzugte erfindungsgemäße Ausbildung in Form eines längsgestreckten Steckverbinders gegeben, bei dem der erste Schenkel am Übergangsabschnitt in Steckrichtung so angeordnet ist, dass der zweite Schenkel im wesentlichen in Erstreckungsrichtung und damit in Steckrichtung des Kontaktstiftes angeordnet ist.In order to prevent substantially the damage caused by the longitudinal waves during ultrasonic welding, a preferred embodiment of the invention in the form of an elongated connector is provided in which the first leg is arranged at the transition portion in the insertion direction so that the second leg substantially in the extension direction and thus in the insertion direction the contact pin is arranged.

Mit Vorteil verfügt die Auflagefläche des zweiten Schenkels über eine Übergangsfläche, die mit der vom ersten Schenkel ausgebildeten Schenkelinnenfläche verbunden ist bzw. sich unmittelbar in diese hinein erstreckt.Advantageously, the support surface of the second leg has a transition surface which is connected to the leg inner surface formed by the first leg and extends directly into it.

Bildlich ausgedrückt wird in etwa die Form einer halben "Halfpipe" gebildet, bei der die Auflagefläche des zweiten Schenkels den Boden bildet und die gekrümmte Übergangsfläche mit der Schenkelinnenfläche seitlich die Rundung der "Halfpipe" darstellt.Figuratively speaking, the shape of half a "half pipe" is approximately formed in which the bearing surface of the second leg forms the bottom and the curved transition surface with the inner side surface of the leg represents the rounding of the "half pipe" laterally.

Anders ausgedrückt sind die Innenflächen, d. h. die dem jeweils anderen Schenkel zugewandten Flächen über eine gekrümmte Übergangsfläche miteinander verbunden. Die gekrümmte Übergangsfläche entspricht im wesentlichen in etwa einem Segment des Innenumfangs eines Hohlzylinders von etwa 70° bis 90° Bogenmaß.In other words, the inner surfaces, i. H. the surfaces facing the other leg connected to each other via a curved transition surface. The curved transition surface substantially corresponds approximately to a segment of the inner circumference of a hollow cylinder of about 70 ° to 90 ° radians.

Der Krümmungsradius der gekrümmten Übergangsfläche ist mit Vorteil über die gesamte Übergangsfläche konstant, wobei aus der Übergangsfläche das geometrische Wellenbrecherelement hervorsteht.The radius of curvature of the curved transition surface is advantageously constant over the entire transition surface, wherein the geometric breakwater element protrudes from the transition surface.

In einer bevorzugten Ausführungsform ist das geometrische Element als eine aus der Übergangsfläche nach außen hervorstehende entlang der Krümmung ebenfalls gekrümmte Wulst ausgebildet.In a preferred embodiment, the geometric element is formed as a bulge which also protrudes outwardly from the transition surface and which is also curved along the curvature.

In einer besonders bevorzugten Ausführungsform erstreckt sich die Wulst in ihrem Verlauf über die gesamte gekrümmte Fläche und zwar über die gesamte Höhe des ersten Schenkels und verläuft mit ihrem anderen Ende bis in die Flanken bzw. in die Fläche des zweiten Schenkels hinein.In a particularly preferred embodiment, the bead extends in its course over the entire curved surface over the entire height of the first leg and extends with its other end into the flanks or in the surface of the second leg inside.

Mit Vorteil befindet sich die Wulst in etwa der Mitte der Übergangsfläche in Bezug auf die durch das L gebildete Seitenkanten des Anschlussabschnittes.Advantageously, the bead is located approximately in the middle of the transition surface with respect to the side edges of the connection section formed by the L.

Anders ausgedrückt ist In einer Aufsicht die Projektion der Wulst parallel zur Steckrichtung des Kontaktstiftes orientiert.In other words, in a plan view, the projection of the bead is oriented parallel to the insertion direction of the contact pin.

Die sich im Kontaktstift ausbildenden longitudinalen Ultraschallwellen werden folglich durch das In longltudinaler Orientierung ausgebildete Wellenbrecherelement gebrochen und in ihrer Wirkung gehemmt, so dass der Kontaktstift schadfrei mittels Ultraschallschweißens mit einer Leitung verbunden werden kann.The forming in the contact pin longitudinal ultrasonic waves are thus broken by the In longltudinaler orientation formed breakwater element and inhibited in their effect, so that the contact pin can be connected without damage by means of ultrasonic welding with a line.

Vergleichende Versuche zwischen Kontaktelementen, die lediglich an einer Anschlusszunge mit einer Leitung mittels Ultraschallschweißens verbunden wurden und denen, die mittels einer entsprechenden Wellenbrecherkontur ausgebildet waren haben gezeigt, dass bei der ersten Gruppe von Kontaktelementen in nahezu allen Fällen Schädigungen und/oder Risse am Übergangsbereich nachzuweisen waren, während dies bei den erfindungsgemäßen Kontaktelementen nicht der Fall war.Comparative tests between contact elements, which were only connected to a lead with a line by means of ultrasonic welding and those which were formed by means of a corresponding breakwater contour have shown that in the first group of contact elements almost all cases damage and / or cracks at the transition area were detected while this was not the case with the contact elements according to the invention.

In einer besonders bevorzugten Ausführungsform wird der Anschlussabschnitt und das geometrische Wellenbrecherelement, sprich vorzugsweise die Wulst, materialschlüssig aus einem Material und zwar vorzugsweise aus reinem Kupfer oder einer Kupferlegierung ausgebildet.In a particularly preferred embodiment, the connection portion and the geometric breakwater element, that is, preferably the bead, materially formed of a material, preferably made of pure copper or a copper alloy.

Die Verwendung von Kupfer oder einer Kupferlegierung mit hohem Kupferanteil wird bevorzugt wegen der besonders guten elektrischen Leitfähigkeit verwendet.The use of copper or a copper alloy with a high copper content is preferably used because of the particularly good electrical conductivity.

Entscheidend für die technische Wirkung des erfindungsgemäßen Kontaktes ist jedenfalls die geeignete Ausbildung eines Wellenbrecherelementes zwischen oder an dem Anschlussabschnitt zum Übergang des Übergangs- bzw. Kontaktabschnittes.In any case, the decisive factor for the technical effect of the contact according to the invention is the suitable design of a breakwater element between or at the connection section for the transition of the transition or contact section.

Eine weiter bevorzugte Ausführungsform ist ein elektrischer Steckverbinder gemäß einem oder mehreren der vorhergehenden Merkmalen, wobei der Kontaktstift aus einem metallischen Material besteht und wobei der Kontaktstift eine galvanische Oberflächenbeschichtung aufweist und der Übergangsabschnitt über eine Auflagefläche verfügt, die keine Oberflächenbeschichtung und keine anderweitig aufgebrachte Beschichtung aufweist.A further preferred embodiment is an electrical connector according to one or more of the preceding features, wherein the contact pin consists of a metallic material and wherein the contact pin is a galvanic Surface coating and the transition section has a support surface which has no surface coating and no other applied coating.

Eine weiter bevorzugten Ausführungsform ist ein elektrischer Steckverbinder gemäß einem oder mehreren der vorhergehenden Merkmalen, wobei dass der Anschlussabschnitt über eine vorzugsweise ebene Auflagefläche für eine anzuschließende elektrische Leitung verfügt.A further preferred embodiment is an electrical connector according to one or more of the preceding features, wherein that the connecting portion has a preferably flat bearing surface for an electrical line to be connected.

Eine weiter bevorzugte Ausführungsform ist ein elektrischer Steckverbinder gemäß einem oder mehreren der vorhergehenden Merkmalen wobei das metallische Material des Kontaktstiftes aus Kupfer oder einer Kupferlegierung besteht mit hohem Kupferanteil und/oder die galvanische Beschichtung des Kontaktstiftes aus Silber oder Gold oder Zinn besteht.A further preferred embodiment is an electrical connector according to one or more of the preceding features wherein the metallic material of the contact pin is made of copper or a copper alloy with a high copper content and / or the galvanic coating of the contact pin made of silver or gold or tin.

Kombinationen einzelner oder mehrerer Merkmale sollen erfindungsgemäß als offenbart gelten.Combinations of individual or several features should be considered as disclosed according to the invention.

Weitere Vorteile und zweckmäßiger Ausführungen sind aus den weiteren Ansprüchen, der Figurenbeschreibung und den Zeichnungen zu entnehmen. Es zeigen:

  • Fig. 1 einen elektrischen Steckverbinder zur elektrischen Verbindung mittels Ultraschallschweißens;
  • Fig. 2 eine perspektivische Ansicht des Kontaktes,
  • Fig. 3 eine perspektivische Ansicht des Kontaktstiftes ähnlich der Ausführung aus Fig. 1 und Fig. 2.
Further advantages and expedient embodiments can be taken from the further claims, the description of the figures and the drawings. Show it:
  • Fig. 1 an electrical connector for electrical connection by means of ultrasonic welding;
  • Fig. 2 a perspective view of the contact,
  • Fig. 3 a perspective view of the contact pin similar to the embodiment of Fig. 1 and Fig. 2 ,

Gemäß Fig. 1 ist der elektrische Steckverbinder 1 in Form eines Kontaktstiftes 2 ausgebildet. Der Kontaktstift 2 untergliedert sich in die Abschnitte A, B und C. Der Abschnitt C stellt den Kontaktabschnitt 3 des Kontaktstiftes 2 dar. Der Kontaktabschnitt 3 dient der Kontaktierung mit einem korrespondierenden Gegenstecker. Unmittelbar daran gliedert sich in Abschnitt B ein Übergangsabschnitt 4 an. Zwischen dem Übergangsabschnitt 4 und dem Kontaktabschnitt 3 ist eine Rastkontur 8 angeordnet zur Verrastung mit einem Rastelement am Gegenstecker. Am Übergangsabschnitt 4 schließt sich im Teil A des Kontaktstiftes 2 der Anschlussabschnitt 5 an.According to Fig. 1 is the electrical connector 1 in the form of a contact pin 2 is formed. The contact pin 2 is subdivided into the sections A, B and C. The section C represents the contact section 3 of the contact pin 2. The contact section 3 is used for contacting with a corresponding mating connector. Directly in section B, a transition section 4 is divided. Between the transition section 4 and the contact section 3, a latching contour 8 is arranged for latching with a latching element on the mating connector. At the transition section 4 closes in part A of the contact pin 2, the connection section 5 at.

Der Anschlussabschnitt 5 des Kontaktstiftes 2 dient der elektrischen und mechanischen Verbindung mit einem anzuschließenden Kabel bzw. einer anzuschließenden Leitung 100. Der Anschlussabschnitt 5 ist als L-förmiger Anschlussabschnitt ausgebildet, wobei ein Teil der L-Form Teil des Übergangsabschnittes ist. Die L-Form des Anschlussabschnittes 5 ergibt sich durch einen ersten Schenkel 50 und einen zweiten dazu orthogonal angeordneten Schenkel 51. Der Schenkel 50 ist unmittelbar am Übergangsabschnitt 4 mit diesem verbunden. Auf der der Verbindung gegenüberliegenden Seite verfügt der Schenkel 50 über eine Schenkelfläche 40, die im wesentlichen horizontal und in ihrem weiteren Verlauf gekrümmt mit einem Krümmungsradius R ausgebildet ist und in einer Auflagefläche 10 des zweiten Schenkels 51 mündet bzw. in diese übergeht. Der zweite Schenkel 51 ist als ein im wesentlichen flacher Schenkel ausgebildet, der in Axialrichtung des Kontaktstiftes 2 und zwar an dessen Ende angeordnet ist. Die Unterseite und damit die der Auflagefläche 10 gegenüberliegende Seite des zweiten Schenkels 51 ist mit Vorteil ebenfalls flach ausgebildet, um einen minimalen Bauraum zu erzielen.The connection section 5 of the contact pin 2 serves for the electrical and mechanical connection to a cable or a line 100 to be connected. The connection section 5 is formed as an L-shaped connection section, part of the L-form being part of the transition section. The L-shape of the connection section 5 results from a first leg 50 and a second leg 51 arranged orthogonally to it. The leg 50 is connected directly to the transition section 4 with this. On the opposite side of the connection, the leg 50 has a leg surface 40, which is formed substantially horizontally and curved in its further course with a radius of curvature R and opens into a bearing surface 10 of the second leg 51 and merges into it. The second leg 51 is formed as a substantially flat leg, which is arranged in the axial direction of the contact pin 2 and that at its end. The bottom and thus the support surface 10 opposite side of the second leg 51 is also advantageously flat to achieve a minimum space.

Der Kontaktabschnitt 3 und der Übergangsabschnitt 4 sind mit einem ersten Durchmesser D1, im wesentlichen als zylindrische Abschnitte ausgebildet. Der Anschlussabschnitt 5 ragt mit einer Auskragung 11 über die Außenkontur und damit über die Hüllform des von dem Kontaktabschnitt 3 und dem Übergangsabschnitt 4 gebildeten zylindrischen Außenhülle des Kontaktstiftes 2.The contact portion 3 and the transition portion 4 are formed with a first diameter D1, substantially as cylindrical portions. The connection section 5 protrudes with a projection 11 over the outer contour and thus over the enveloping shape of the cylindrical outer shell of the contact pin 2 formed by the contact section 3 and the transition section 4.

Durch die Auskragung 11 hält der Steckverbinder eine mechanische Anlage gegen beispielsweise ein Gehäuse, um sicherzustellen, dass der Kontaktstift 2 mit seinem Kontaktschnitt 3 in die richtige Steckposition gebracht werden kann.By the projection 11 of the connector holds a mechanical abutment against, for example, a housing to ensure that the contact pin 2 can be brought with its contact section 3 in the correct insertion position.

Wie in Fig. 1 und Fig. 2 ersichtlich, ist der Verlauf der Auflagefläche 10 vom zweiten Schenkel 51 zur Schenkelfläche 40 des ersten Schenkels 50 als eine gekrümmte Fläche ausgebildet. Die Krümmung folgt im wesentlichen in etwa der Form einer Hälfte einer "Halfpipe". D. h. die Bodenfläche wird gebildet durch die Auflagefläche 10, während die Halfpipeseitenflächen von der gekrümmten Schenkelfläche 40 ausgebildet werden.As in Fig. 1 and Fig. 2 can be seen, the course of the support surface 10 is formed by the second leg 51 to the leg surface 40 of the first leg 50 as a curved surface. The curvature follows substantially in the form of half of a "half pipe". Ie. the bottom surface is formed by the support surface 10, while the half-pipe side surfaces are formed by the curved leg surface 40.

Aus der Schenkelfläche 40 ragt, wie in Fig. 2 ersichtlich, der Wellenbrecher 41 hervor.From the leg surface 40 protrudes, as in Fig. 2 seen, the breakwater 41 forth.

Der Wellenbrecher 41 ist in dem vorliegenden Ausführungsbeispiel als eine Wulst bzw. Buckel und zwar eine gekrümmte Wulst ausgebildet, deren Projektion, wie in Fig. 2 ersichtlich ist, sich in axialer Richtung S bzw. Steckrichtung S des Kontaktstiftes 2 erstreckt.The breakwater 41 is formed in the present embodiment as a bead and that a curved bead, whose projection, as in Fig. 2 it can be seen extending in the axial direction S or plug-in direction S of the contact pin 2.

Anders ausgedrückt verläuft die Wulst 41 von der Auflagefläche 10 entlang der axialen Richtung über die Krümmung der gekrümmten Schenkelfläche 40 hoch bis an dessen Ende 53 und zwar in etwa bis zum oberen Ende der Auskragung 11.In other words, the bead 41 extends from the support surface 10 along the axial direction over the curvature of the curved leg surface 40 up to the end 53 and approximately to the upper end of the projection 11th

Der so ausgebildete Buckel dient als Wellenbrecher 41 im Anschlussabschnitt 5, um insbesondere Longitudinalwellen zu brechen.The hump formed in this way serves as a breakwater 41 in the connection section 5, in order in particular to break longitudinal waves.

Wie in Fig. 1 angedeutet, soll ein abisolierte Ende eines Kabels 100 auf die Auflagefläche 10 aufgebracht werden und mittels Ultraschallwellen, d. h. mittels Ultraschallschweißens eine Ultraschallschweißverbindung zwischen dem Kabel 100 und dem Kontaktstift 2 bzw. dessen Anschlussabschnitt 5 ausgebildet werden.As in Fig. 1 indicated, a stripped end of a cable 100 is to be applied to the support surface 10 and by means of ultrasonic waves, ie by means of ultrasonic welding, an ultrasonic welding connection between the cable 100 and the contact pin 2 and its connecting portion 5 are formed.

Die dabei auftretenden Longitudinalwellen und Ultraschallwellen werden vom Wellenbrecher 41 an dem "kritischen" Übergang zum Übergangsabschnitt 5 gebrochen, so dass die Energie der Ultraschallwellen, insbesondere im Bereich des Übergangs vom Anschlussabschnitt 5 zum Übergangsabschnitt 4, zu keinerlei funktionsbeeinträchtigenden Störungen oder Materialschäden führt.The occurring longitudinal waves and ultrasonic waves are refracted by the breakwater 41 at the "critical" transition to the transition section 5, so that the energy of the ultrasonic waves, in particular in the region of the transition from the connection section 5 to the transition section 4, leads to any dysfunctional disturbances or material damage.

In Fig. 2 ersichtlich ist, dass der Buckel bzw. die Wulst 41 im wesentlichen in der Mitte zwischen den Seitenkanten 42 der Schenkel 50, 51 angeordnet sind.In Fig. 2 it can be seen that the projection or the bead 41 are arranged substantially in the middle between the side edges 42 of the legs 50, 51.

Alternativ könnten auch zwei parallele Wellenbrecher 41, d. h. zwei Buckel bzw. zwei Wulsten 41 nebeneinander im Übergangsbereich angeordnet sein, deren geometrische Ausbildung die Brechung von Ultraschallwellen bewirkt.Alternatively, two parallel breakwaters 41, d. H. two humps or two beads 41 may be arranged side by side in the transition region, the geometric formation of which causes the refraction of ultrasonic waves.

Besonders effizient hat sich die Bildung einer einzelnen mittigen und gekrümmten Wulst 41 gezeigt. Da auf diese Weise eine optimale Wellenbrechung von Ultraschallwellen stattfindet.The formation of a single central and curved bead 41 has proven to be particularly efficient. Since in this way an optimal wave breaking of ultrasonic waves takes place.

Der in Fig. 1 bzw. Fig. 2 dargestellte Anschlussabschnitt 5 weist an seiner Auflagefläche 10 keine Oberflächenbeschichtung auf, so dass ein Kontakt unmittelbar mit dem Material des Kontaktstiftes 2 stattfindet.The in Fig. 1 respectively. Fig. 2 illustrated connection portion 5 has at its bearing surface 10 no surface coating, so that a contact takes place directly with the material of the contact pin 2.

Mit Vorteil ist das Material des Kontaktstiftes 2 als ein Kupfermaterial ausgebildet bzw. eine Kupferlegierung mit hohem Kupferanteil.Advantageously, the material of the contact pin 2 is formed as a copper material or a copper alloy with a high copper content.

Der Kontaktabschnitt 3 kann mit Vorteil mit einer Oberflächenbeschichtung versehen sein, so dass der erfindungsgemäße elektrische Steckverbinder kostengünstig über Partiellbeschichtungen versehen werden kann und in einer günstigen Welse geeignet ist zum Ultraschallschweißen.The contact section 3 can be advantageously provided with a surface coating, so that the electrical connector according to the invention can be provided inexpensively over partial coatings and is suitable in a favorable Welse for ultrasonic welding.

Im Hinblick auf die Wärmeeintragung hat es sich als vorteilhaft erwiesen, die Länge des zweiten Schenkels 51 mit seiner Länge von etwa 25 % bis 40 % der Gesamtlänge des Kontaktstiftes 2 zu versehen.With regard to the heat input, it has proven to be advantageous to provide the length of the second leg 51 with its length of about 25% to 40% of the total length of the contact pin 2.

Folglich befindet sich der erste Schenkel 50 in etwa in einem Drittel der Gesamtlänge des Kontaktstiftes 2 beabstandet vom Ende des Anschlussabschnittes 5 entfernt. Zwei Drittel der Länge des Kontaktstiftes 2 werden gebildet durch den Übergangsabschnitt 4 und den Kontaktabschnitt 3.Consequently, the first leg 50 is located approximately in one third of the total length of the contact pin 2 spaced from the end of the connection portion 5. Two thirds of the length of the contact pin 2 are formed by the transition section 4 and the contact portion. 3

Mit Vorteil ist wie in Fig. 2 ersichtlich, die Auflagefläche 10 in ihrer Breite größer als der Durchmesser D1 des Kontaktabschnittes 3 und Übergangsabschnittes 4. Dies verbessert den Wellenbrechereffekt des Wellenbrechers 41 Im Bereich des ersten Schenkels 50.With advantage is like in Fig. 2 It can be seen, the support surface 10 in its width greater than the diameter D1 of the contact portion 3 and transition portion 4. This improves the breakwater effect of the breakwater 41 in the region of the first leg 50th

In Fig. 3 ist eine perspektivische Ansicht des Kontaktstiftes 2 ähnlich der Ausführung aus Fig. 1 und Fig. 2 dargestelltIn Fig. 3 is a perspective view of the contact pin 2 similar to the embodiment of Fig. 1 and Fig. 2 shown

In der perspektivischen Ansicht ist deutlich ersichtlich, wie in dem vorliegenden Ausführungsbeispiel das mechanische Wellenbrecherelement bzw. der Wellenbrecher 41 ausgebildet ist.In the perspective view, it can be clearly seen how in the present embodiment, the mechanical breakwater element or the breakwater 41 is formed.

BezugszeichenlisteLIST OF REFERENCE NUMBERS Elektrischer Steckverbinder zur elektrischen Verbindung mittels UltraschallschweißenElectrical connector for electrical connection by means of ultrasonic welding

11
Elektrischer SteckverbinderElectrical connector
22
Kontaktstiftpin
33
KontaktabschnittContact section
44
ÜbergangsabschnittTransition section
55
Anschlussabschnittconnecting section
88th
Rastkonturcatch contour
1010
Auflageflächebearing surface
1111
Auskragungprojection
4040
Schenkelflächelimb surface
4141
Wellenbrecherbreakwater
4242
Seitenkanten der Schenkel 50, 51Side edges of the legs 50, 51
5050
erster Schenkelfirst leg
5151
zweiter Schenkelsecond leg
5252
gekrümmter Übergangsabschnittcurved transition section
5353
Ende der WulstEnd of the bead
6060
galvanische Oberflächen beschichtunggalvanic surface coating
100100
Kabel/LeitungCable line
SS
Axialrichtung/SteckrichtungAxial / plug-in direction

Claims (16)

  1. Electrical plug connector (1) in the form of a solid contact pin (2) that comprises the following:
    A) a contact portion (3),
    B) a transition portion (4) adjoining the contact portion (3), and
    C) a connection portion (5) adjoining the transition portion (4) for electrical connection to an electrical line (100) by means of ultrasonic welding, wherein the connection portion (5) has at least one geometric wave refraction element (41) for refracting waves during ultrasonic welding, characterized in that the geometric wave refraction element (41) is formed as a curved bead protruding outwardly from the transition surface (52).
  2. Electrical plug connector (1) according to Claim 1, characterized in that the connection portion (5) has a preferably planar support surface (10) for an electrical line (100) to be connected.
  3. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the connection portion (5) is formed from a first leg (50) and a second leg (51).
  4. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the first leg (50) is arranged on the transition portion (4).
  5. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the connection portion (5) is formed as an L-shaped connection portion, more specifically by the first leg (50) and the second leg (51) oriented substantially orthogonally thereto.
  6. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the support surface (10) of the second leg (51) is connected via a curved transition surface (52) to a leg inner surface (40) formed by the first leg (50) and/or forms a common surface therewith.
  7. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the geometric wave refraction element (41) is arranged in the region of the curved transition surface (52) and protrudes out therefrom.
  8. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the bead extends in its position and therefore in its progression over the entire height of the first leg (50) and reaches via one of its ends (53) as far as the second leg (51).
  9. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the connection portion (5) and the geometric wave refraction element (41) are formed in a materially bonded manner from a pure copper material.
  10. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the contact pin (2) has a partial surface coating.
  11. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that no surface coating of the connection portion (5) is applied in the region of the support surface (10), and the contact material for the ultrasonic welding consists in this region of the material of the contact element.
  12. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the contact pin (2) consists of a metal material, and wherein the contact pin (2) has a galvanic surface coating and the transition portion (4) has a support surface (10), which has no surface coating and no coating applied otherwise.
  13. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the connection portion (5) has a preferably planar support surface (10) for an electrical line (100) to be connected.
  14. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the connection portion (5) is formed as an L-shaped connection portion, more specifically by the first leg (50) and the second leg (51) oriented substantially orthogonally thereto.
  15. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the metal material of the contact pin (1) consists of copper or a copper alloy with high copper content.
  16. Electrical plug connector (1) according to one or more of the preceding claims, characterized in that the galvanic coating of the contact pin (3) consists of silver or gold or tin.
EP13718104.6A 2012-02-11 2013-02-08 Electrical plug connector for electrical connection by means of ultrasonic welding Active EP2812949B1 (en)

Applications Claiming Priority (3)

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DE201210002910 DE102012002910B4 (en) 2012-02-11 2012-02-11 Electrical connector for electrical connection by means of ultrasonic welding
DE202012001446U DE202012001446U1 (en) 2012-02-11 2012-02-11 Electrical contact pin for ultrasonic welding
PCT/EP2013/000374 WO2013117339A1 (en) 2012-02-11 2013-02-08 Electrical plug connector for electrical connection by means of ultrasonic welding

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EP2812949B1 true EP2812949B1 (en) 2016-04-20

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JP (1) JP6097769B2 (en)
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CN104115333A (en) 2014-10-22
CN104115333B (en) 2016-11-09
WO2013117339A1 (en) 2013-08-15
ES2575401T3 (en) 2016-06-28
JP6097769B2 (en) 2017-03-15
EP2812949A1 (en) 2014-12-17
JP2015511375A (en) 2015-04-16
US9281573B2 (en) 2016-03-08
US20140378010A1 (en) 2014-12-25

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