EP3671964B1 - Contact with universal connection area - Google Patents

Contact with universal connection area Download PDF

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Publication number
EP3671964B1
EP3671964B1 EP19306566.1A EP19306566A EP3671964B1 EP 3671964 B1 EP3671964 B1 EP 3671964B1 EP 19306566 A EP19306566 A EP 19306566A EP 3671964 B1 EP3671964 B1 EP 3671964B1
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EP
European Patent Office
Prior art keywords
contact
connection area
line
welded
connection
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EP19306566.1A
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German (de)
French (fr)
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EP3671964A1 (en
Inventor
Frank Schröer
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Nexans SA
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Nexans SA
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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
    • H01R4/029—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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
    • H01R4/625—Soldered or welded connections

Definitions

  • the invention relates to a contact with a universal connection area and an electrical line with such a contact.
  • busbars are installed in electric vehicles, for example, which have a high current-carrying capacity with even current distribution in the conductor. Busbars are therefore preferably installed, provided the components to be connected do not move relative to each other.
  • the electrical device can be a battery, in particular a high-voltage battery in an electric vehicle, or an electrical consumer, for example.
  • the fastening means are through a through hole formed for a fastening screw that clamps the contact on the busbar or on a transfer point.
  • the geometric arrangement of the fastening area relative to the connection area defines an outlet direction of the electrical line in the installed position. Accordingly, differently designed contacts are required for different outlet directions, which are welded to the electrical line as required. In particular, it is necessary to adapt the orientation of the fastening area relative to the connection area to the respective application.
  • a contact arrangement with an anti-twist device is known.
  • a contact piece has a hexagonal contact opening that engages over a correspondingly shaped hexagon on a connecting piece.
  • the contact piece is pressed onto the connection with a nut in order to establish a clamping contact.
  • the contact piece has a tab that protrudes radially outwards, at the end of which a line is connected by means of a crimp contact. Different exit directions of the cable are implemented by placing the contact in different orientations on the connection.
  • US2016254602A1 discloses an arrangement in which a wire conductor is welded to a rectangular area of a contact substrate.
  • the object of the present invention is to create a contact that can be used universally for different outgoing directions.
  • the invention proposes, according to a first aspect, a contact with a connection section, the longitudinal extent of the connection section defining a main direction, and with a connection area that is set up so that a line can be welded to the connection area in an electrically conductive manner.
  • the connection area is designed in the shape of a disk and allows for a large number of outgoing directions for the electrical line in relation to the main direction.
  • the contact is due to the high variability in relation to the achievable departure angle of a line welded to the contact universally applicable. In this way, the number of parts required for different installation situations can be reduced. At the same time, tool costs can often be reduced.
  • the lead is welded to a major surface of the connection area.
  • an end face of the line is welded to an edge of the connection area.
  • the edge is expediently designed as a polygon, so that the edge is composed of a plurality of straight sections. The straight portions of the edge allow the end face of the pipe to be welded.
  • a material-to-material welded connection is mechanically stable and has a high current-carrying capacity.
  • an arrangement made up of an electrical line and a contact according to the aspect of the invention is proposed. At least one end of the lead is welded to the connection area of the contact.
  • a busbar in which a connection area is integrally formed on at least one end and is set up so that a line can be welded to the connection area in an electrically conductive manner.
  • the connection area is designed in the shape of a disc and allows a large number of outlet directions for the electrical cable. Attaching a separate contact to the busbar is no longer necessary, so that work steps and parts are saved.
  • a contact 100 is shown schematically.
  • the contact 100 has a terminal section 101 and a connection area 102 .
  • the connection section 101 is provided with a through hole 103 in which a fastening screw (not shown) can be accommodated in order to clamp the contact 100, for example, to a busbar in order to produce a clamping contact.
  • a stranded conductor 104 of an electrical line 105 is welded to the connection area 102 .
  • the welding can be done, for example, by friction stir welding or ultrasonic welding.
  • the manner in which the stranded conductor is welded on in the connection area 102 is not relevant to the invention.
  • other material connection techniques can also be used, for example hard or soft soldering.
  • the stranded conductor 104 is always connected to the connection area 102 in a defined field. In the specific case of a welded connection, the stranded conductor 104 is welded to the connection area 102 in a defined welding field.
  • connection section 101 and the connection area 102 are essentially oriented on a straight line.
  • the outlet direction of the line 105 is shown with an arrow 106A.
  • a main direction of the connection section 101 is illustrated by a line 107 .
  • the outgoing direction 106A and the main direction 107 form an angle of 180°.
  • the integral connection of the stranded conductor 104 to the contact 100 is illustrated by a spot weld 108 shown schematically.
  • the contact 100 is made of a metal with good electrical conductivity, for example copper, aluminum or their alloys.
  • FIG. 1B an exemplary embodiment is shown in which the stranded conductor 104 encloses a right angle with respect to the main direction 107 of the connection section 101 .
  • the outgoing direction of the line 105 is symbolized by an arrow 106B.
  • Figure 1C shows a further embodiment in which the stranded conductor 104 also encloses a right angle with respect to the main direction of the connection section 101, but goes in the opposite direction as in the embodiment in FIG Figure 1B .
  • the outlet direction of the line 105 is indicated by an arrow 106C.
  • Figure 1E shows a contact 100′ with a connection area 102, which is designed in such a way that the outgoing direction of the line 105, which is represented by an arrow 106E, forms an angle of 135° with the main direction 107 of the connection section 101.
  • the outgoing direction of the line 105 is illustrated by an arrow 106F.
  • the two are different Installation of the line 105 on the contact 100 'resulting directions are in Figure 1G shown in a vector diagram.
  • Figure 2A shows a contact 200 according to the present invention.
  • the contact has a connection section 201 which merges into a disk-shaped connection area 202 .
  • the connecting portion 201 is provided with a through hole 203 for a fastening screw (not shown).
  • the disk-shaped connection area 202 allows the stranded conductor 104 to be welded on at any angle of departure, which is, for example, in a range of 30°-330° in relation to the main direction 107 of the connection section 201, which is shown in the vector diagram in Figure 2B is illustrated.
  • connection area 202 has a circular edge 203.
  • connection area 202 can also be designed differently and, for example, have a polygonal edge, in particular a hexagonal or octagonal edge.
  • the exact design of the connection area 202 is not important. The only important thing is that the connection area permits a large number of outlet directions for a welded-on line 105 .
  • a contact 200 with a polygonal edge 203 it is also possible to weld a line 105 to a straight section of the edge 203 at the end face.
  • a stranded conductor 104 it is necessary for this to first compact the stranded conductor so that a solid end of the stranded conductor 104 is produced, for example by means of laser welding can be welded to the edge 203 of the contact 200.
  • the compacting step is of course omitted.
  • the contact 200 can be used universally due to the high variability in relation to the outlet angle that can be realized for a line 105 welded to the contact 200 . In this way, the number of parts required for different installation situations can be reduced. At the same time, tool costs can often be reduced.
  • Figure 2C shows an embodiment of the invention, in which the contact 200 is formed directly on one end of a solid busbar 204.
  • work steps and parts can be saved in certain applications because there is no need to attach a separate contact 200 to the busbar 204 .

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)

Description

GebietArea

Die Erfindung betrifft einen Kontakt mit einem universellen Verbindungsbereich sowie eine elektrische Leitung mit einem solchen Kontakt.The invention relates to a contact with a universal connection area and an electrical line with such a contact.

Hintergrundbackground

In Fahrzeugen werden zur Energieübertragung elektrische Leiter benötigt, die besonders bei Elektroantrieben große Querschnitte haben. Leiter aus Aluminium werden insbesondere aus Gewichts- und Kostengründen vermehrt als Ersatz für Kupferleiter verwendet. Haupteinsatzgebiete derartiger Leiter sind beispielsweise die Automobil- und die Flugzeugtechnik. Aus Gewichtsgründen bietet sich deshalb Aluminium als Ersatz für Kupfer als Leitermaterial an. Die geringere elektrische Leitfähigkeit des Aluminiums gegenüber Kupfer spielt für die meisten Anwendungen keine Rolle. Um große Ströme leiten zu können, werden zum Beispiel bei Elektrofahrzeugen starre Stromschienen verbaut, die eine hohe Stromtragfähigkeit bei gleichmäßiger Stromverteilung im Leiter aufweisen. Stromschienen werden deshalb bevorzugt verbaut, vorausgesetzt die zu verbindenden Komponenten bewegen sich nicht relativ zueinander. Bei Elektrofahrzeugen müssen auch relativ zueinander bewegte Teile elektrisch verbunden werden. In der Praxis ist es deshalb häufig notwendig, dass flexible Litzenleiter eingesetzt werden, deren Leiter aus einer Vielzahl von Einzeldrähten aufgebaut ist, die untereinander häufig verdreht und/oder verseilt sind. Dementsprechend ist es erforderlich, Stromschienen mit Litzenleitern elektrisch zu verbinden. In der Praxis wird an ein Ende der Leitung, das mit einer Stromschiene verbunden werden soll, ein Kontakt angeschweißt. Der Leiter der Leitung wird an einem Verbindungsbereich des Kontakts angeschweißt. Weiterhin ist der Kontakt in einem Befestigungsbereich mit Befestigungsmitteln versehen, mittels derer der Kontakt mit einer Stromschiene oder mit einem Übernahmepunktes eines elektrischen Gerätes verbunden wird. Das elektrische Gerät kann zum Beispiel eine Batterie, insbesondere eine Hochvoltbatterie in einem Elektrofahrzeug, oder ein elektrischer Verbraucher sein. Die Befestigungsmittel sind im einfachsten Fall durch ein Durchgangsloch für eine Befestigungsschraube gebildet, die den Kontakt auf der Stromschiene oder auf einem Übernahmepunkt festklemmt. Die geometrische Anordnung des Befestigungsbereichs gegenüber dem Verbindungsbereich definiert eine Abgangsrichtung der elektrischen Leitung in Montagelage. Für unterschiedliche Abgangsrichtungen sind dementsprechend unterschiedlich ausgebildete Kontakte erforderlich, die je nach Bedarf an der elektrischen Leitung angeschweißt werden. Insbesondere ist es notwendig, die Orientierung des Befestigungsbereiches gegenüber dem Verbindungsbereich an den jeweiligen Anwendungsfall anzupassen.In vehicles, electrical conductors are required for energy transmission, which have large cross-sections, particularly in the case of electric drives. Aluminum conductors are increasingly being used as a replacement for copper conductors, particularly for reasons of weight and cost. The main areas of use for such conductors are, for example, automotive and aircraft technology. For reasons of weight, aluminum is therefore a suitable substitute for copper as a conductor material. The lower electrical conductivity of aluminum compared to copper is irrelevant for most applications. In order to be able to conduct large currents, rigid busbars are installed in electric vehicles, for example, which have a high current-carrying capacity with even current distribution in the conductor. Busbars are therefore preferably installed, provided the components to be connected do not move relative to each other. In electric vehicles, parts that move relative to one another must also be electrically connected. In practice, it is therefore often necessary to use flexible stranded conductors, the conductors of which are made up of a large number of individual wires which are often twisted and/or stranded with one another. Accordingly, it is necessary to electrically connect busbars with stranded conductors. In practice, a contact is welded to one end of the wire that is to be connected to a busbar. The conductor of the wire is welded to a connection portion of the contact. Furthermore, the contact is provided with fastening means in a fastening area, by means of which the contact is connected to a busbar or to a transfer point of an electrical device. The electrical device can be a battery, in particular a high-voltage battery in an electric vehicle, or an electrical consumer, for example. In the simplest case, the fastening means are through a through hole formed for a fastening screw that clamps the contact on the busbar or on a transfer point. The geometric arrangement of the fastening area relative to the connection area defines an outlet direction of the electrical line in the installed position. Accordingly, differently designed contacts are required for different outlet directions, which are welded to the electrical line as required. In particular, it is necessary to adapt the orientation of the fastening area relative to the connection area to the respective application.

Aus der US 2003/0017391 A1 ist eine Kontaktanordnung mit einer Verdrehsicherung bekannt. Zu diesem Zweck weist ein Kontaktstück eine sechseckige Kontaktöffnung auf, die ein entsprechend geformtes Sechseck an einem Anschlussstutzen übergreift. Mit einer Mutter wird das Kontaktstück auf den Anschluss gepresst, um einen Klemmkontakt herzustellen. Das Kontaktstück weist eine radial nach außen abstehende Lasche auf, an deren Ende eine Leitung mittels eines Crimpkontaktes angeschlossen ist. Unterschiedliche Abgangsrichtungen der Leitung werden realisiert, indem der Kontakt in unterschiedlichen Orientierungen auf den Anschluss aufgesetzt wird.From the U.S. 2003/0017391 A1 a contact arrangement with an anti-twist device is known. For this purpose, a contact piece has a hexagonal contact opening that engages over a correspondingly shaped hexagon on a connecting piece. The contact piece is pressed onto the connection with a nut in order to establish a clamping contact. The contact piece has a tab that protrudes radially outwards, at the end of which a line is connected by means of a crimp contact. Different exit directions of the cable are implemented by placing the contact in different orientations on the connection.

US 2016254602 A1 offenbart eine Anordnung, bei der ein Drahtleiter mit einem rechteckigen Bereich eines Kontaktsubstrats verschweißt ist. US2016254602A1 discloses an arrangement in which a wire conductor is welded to a rectangular area of a contact substrate.

Hiervon ausgehend hat die vorliegende Erfindung die Aufgabe, einen Kontakt zu schaffen, der universell für unterschiedliche Abgangsrichtungen einsetzbar ist.Proceeding from this, the object of the present invention is to create a contact that can be used universally for different outgoing directions.

Zusammenfassung der ErfindungSummary of the Invention

Zur Lösung dieser Aufgabe schlägt die Erfindung nach einem ersten Aspekt einen Kontakt mit einem Anschlussabschnitt vor, wobei die Längserstreckung des Anschlussabschnittes eine Hauptrichtung definiert, und mit einem Verbindungsbereich, der dazu eingerichtet ist, dass eine Leitung elektrisch leitend an dem Verbindungsbereich anschweißbar ist. Der Verbindungsbereich ist scheibenförmig gestaltet und lässt eine Vielzahl von Abgangsrichtungen der elektrischen Leitung in Bezug auf die Hauptrichtung zu.To solve this problem, the invention proposes, according to a first aspect, a contact with a connection section, the longitudinal extent of the connection section defining a main direction, and with a connection area that is set up so that a line can be welded to the connection area in an electrically conductive manner. The connection area is designed in the shape of a disk and allows for a large number of outgoing directions for the electrical line in relation to the main direction.

Der Kontakt ist durch die hohe Variabilität in Bezug auf die realisierbaren Abgangswinkel einer an den Kontakt angeschweißten Leitung universell einsetzbar. Auf diese Weise lässt sich die Anzahl der notwendigen Teile für unterschiedliche Einbausituationen reduzieren. Gleichzeitig können damit auch häufig Werkzeugkosten gesenkt werden.The contact is due to the high variability in relation to the achievable departure angle of a line welded to the contact universally applicable. In this way, the number of parts required for different installation situations can be reduced. At the same time, tool costs can often be reduced.

Bei einer Ausführungsform des Kontakts ist die Leitung auf einer Hauptfläche des Verbindungsbereiches angeschweißt.In one embodiment of the contact, the lead is welded to a major surface of the connection area.

Bei einer anderen Ausführungsform des Kontakts ist eine Stirnseite der Leitung mit einem Rand des Verbindungsbereiches verschweißt. Zweckmäßigerweise ist in diesem Fall der Rand als ein Vieleck ausgebildet, sodass der Rand sich aus einer Mehrzahl von geraden Abschnitten zusammensetzt. Die geraden Abschnitte des Randes ermöglichen es, die Stirnseite der Leitung anzuschweißen.In another embodiment of the contact, an end face of the line is welded to an edge of the connection area. In this case, the edge is expediently designed as a polygon, so that the edge is composed of a plurality of straight sections. The straight portions of the edge allow the end face of the pipe to be welded.

Eine stoffschlüssige Schweißverbindung ist mechanisch stabil und weist eine hohe Stromtragfähigkeit auf.A material-to-material welded connection is mechanically stable and has a high current-carrying capacity.

Nach einem zweiten Aspekt der Erfindung wird eine Anordnung aus einer elektrischen Leitung und einem Kontakt gemäß dem Aspekt der Erfindung vorgeschlagen. Mindestens ein Ende der Leitung ist an dem Verbindungsbereich des Kontakts angeschweißt.According to a second aspect of the invention, an arrangement made up of an electrical line and a contact according to the aspect of the invention is proposed. At least one end of the lead is welded to the connection area of the contact.

Nach einem weiteren Aspekt der Erfindung wird eine Stromschiene vorgeschlagen, bei der an wenigstens einem Ende ein Verbindungsbereich einstückig angeformt ist, der dazu eingerichtet ist, dass eine Leitung elektrisch leitend an dem Verbindungsbereich anschweißbar ist. Der Verbindungsbereich ist scheibenförmig gestaltet und lässt eine Vielzahl von Abgangsrichtungen der elektrischen Leitung zu. Das Anbringen eines separaten Kontaktes an der Stromschiene entfällt dadurch, sodass Arbeitsschritte und Teile gespart werden.According to a further aspect of the invention, a busbar is proposed in which a connection area is integrally formed on at least one end and is set up so that a line can be welded to the connection area in an electrically conductive manner. The connection area is designed in the shape of a disc and allows a large number of outlet directions for the electrical cable. Attaching a separate contact to the busbar is no longer necessary, so that work steps and parts are saved.

Kurze Beschreibung der ZeichnungBrief description of the drawing

Nachfolgend wird die Erfindung anhand einer Ausführungsform unter Bezugnahme auf die begleitenden Figuren exemplarisch näher erläutert. Alle Figuren sind rein schematisch und nicht maßstäblich. Es zeigen:

Fig. 1A-1C
ein Kontakt, wie er aus dem Stand der Technik bekannt ist;
Fig. 1D
ein Zeigerdiagramm zur Veranschaulichung von Abgangsrichtungen;
Fig. 1E, 1F
ein weiterer aus dem Stand der Technik bekannter Kontakt;
Fig. 1G
ein Zeigerdiagramm zur Veranschaulichung von Abgangsrichtungen für den Kontakt aus den Figuren 1E und 1F;
Fig. 2A
ein erfindungsgemäßer Kontakt;
Fig. 2B
ein Zeigerdiagramm zur Veranschaulichung von Abgangsrichtungen für den Kontakt aus Fig. 2A und
Fig. 2C
eineLeitung mit einem angeformten Kontakt.
The invention is explained in more detail below by way of example using an embodiment with reference to the accompanying figures. All figures are purely schematic and not to scale. Show it:
Figures 1A-1C
a contact as is known from the prior art;
Figure 1D
a pointer diagram to illustrate exit directions;
Figures 1E, 1F
another contact known from the prior art;
Figure 1G
a phasor diagram to illustrate the exit directions for the contact from the Figures 1E and 1F ;
Figure 2A
a contact according to the invention;
Figure 2B
a phasor diagram to illustrate the exit directions for the contact Figure 2A and
Figure 2C
a lead with a molded contact.

Gleiche oder ähnliche Elemente sind in den Figuren mit gleichen oder ähnlichen Bezugszeichen versehen.Identical or similar elements are provided with the same or similar reference symbols in the figures.

Ausführungsbeispielexample

In Figur 1A ist ein Kontakt 100 schematisch dargestellt. Der Kontakt 100 weist einen Anschlussabschnitt 101 und einen Verbindungsbereich 102 auf. Der Anschlussabschnitt 101 ist mit einer Durchgangsbohrung 103 versehen, in der eine Befestigungsschraube (nicht dargestellt) aufnehmbar ist, um den Kontakt 100 beispielsweise an einer Stromschiene festzuklemmen, um einen Klemmkontakt herzustellen.In Figure 1A a contact 100 is shown schematically. The contact 100 has a terminal section 101 and a connection area 102 . The connection section 101 is provided with a through hole 103 in which a fastening screw (not shown) can be accommodated in order to clamp the contact 100, for example, to a busbar in order to produce a clamping contact.

An dem Verbindungsbereich 102 ist ein Litzenleiter 104 einer elektrischen Leitung 105 angeschweißt. Die Verschweißung kann beispielsweise durch Reib-Rühr-Schweißen oder Ultraschallschweißen erfolgen. Auf welche Art und Weise der Litzenleiter in dem Verbindungsbereich 102 angeschweißt wird, ist für die Erfindung nicht erheblich. Darüber hinaus sind neben Schweißen auch andere stoffschlüssige Verbindungstechniken anwendbar zum Beispiel Hart- oder Weichlöten. Der Litzenleiter 104 wird aber stets in einem definierten Feld mit dem Verbindungsbereich 102 verbunden. Im konkreten Fall einer Schweißverbindung wird der Litzenleiter 104 in einem definierten Schweißfeld an den Verbindungsbereich 102 angeschweißt.A stranded conductor 104 of an electrical line 105 is welded to the connection area 102 . The welding can be done, for example, by friction stir welding or ultrasonic welding. The manner in which the stranded conductor is welded on in the connection area 102 is not relevant to the invention. In addition to welding, other material connection techniques can also be used, for example hard or soft soldering. However, the stranded conductor 104 is always connected to the connection area 102 in a defined field. In the specific case of a welded connection, the stranded conductor 104 is welded to the connection area 102 in a defined welding field.

Die definierte Anordnung des Litzenleiters 104 auf dem Verbindungsbereich 102 ist für eine gleichbleibende Qualität der elektrischen Verbindung von Bedeutung. Bei dem in Figur 1A dargestellten Kontakt sind der Anschlussabschnitt 101 und der Verbindungsbereich 102 im Wesentlichen auf einer Gerade orientiert. Die Abgangsrichtung der Leitung 105 ist mit einem Pfeil 106A dargestellt. Eine Hauptrichtung des Anschlussabschnittes 101 ist durch eine Linie 107 veranschaulicht. Wie ersichtlich ist, bilden die Abgangsrichtung 106A und die Hauptrichtung 107 einen Winkel von 180°.The defined arrangement of the stranded conductor 104 on the connection area 102 is important for a constant quality of the electrical connection. At the in Figure 1A the contact shown, the connection section 101 and the connection area 102 are essentially oriented on a straight line. The outlet direction of the line 105 is shown with an arrow 106A. A main direction of the connection section 101 is illustrated by a line 107 . As can be seen, the outgoing direction 106A and the main direction 107 form an angle of 180°.

Die stoffschlüssige Verbindung des Litzenleiters 104 mit dem Kontakt 100 ist durch einen schematisch dargestellten Schweißpunkt 108 veranschaulicht.The integral connection of the stranded conductor 104 to the contact 100 is illustrated by a spot weld 108 shown schematically.

Der Kontakt 100 ist aus einem elektrisch gut leitenden Metall hergestellt, zum Beispiel aus Kupfer, Aluminium oder deren Legierungen.The contact 100 is made of a metal with good electrical conductivity, for example copper, aluminum or their alloys.

In Figur 1B ist ein Ausführungsbeispiel dargestellt, bei dem der Litzenleiter 104 in Bezug auf die Hauptrichtung 107 des Anschlussabschnittes 101 einen rechten Winkel einschließt. Die Abgangsrichtung der Leitung 105 ist durch einen Pfeil 106B symbolisiert.In Figure 1B an exemplary embodiment is shown in which the stranded conductor 104 encloses a right angle with respect to the main direction 107 of the connection section 101 . The outgoing direction of the line 105 is symbolized by an arrow 106B.

Figur 1C zeigt ein weiteres Ausführungsbeispiel, bei dem der Litzenleiter 104 in Bezug auf die Hauptrichtung des Anschlussabschnittes 101 ebenfalls einen rechten Winkel einschließt, aber in die entgegengesetzte Richtung abgeht wie bei dem Ausführungsbeispiel aus Figur 1B. Die Abgangsrichtung der Leitung 105 ist durch einen Pfeil 106C angedeutet. Figure 1C shows a further embodiment in which the stranded conductor 104 also encloses a right angle with respect to the main direction of the connection section 101, but goes in the opposite direction as in the embodiment in FIG Figure 1B . The outlet direction of the line 105 is indicated by an arrow 106C.

In Figur 1D sind die mit dem Kontakt 100 realisierbaren Abgangsrichtungen als ein Zeigerdiagramm veranschaulicht. Der Kontakt ermöglicht die Verwirklichung von drei unterschiedlichen Abgangsrichtungen 106A, 106B und 106CIn Figure 1D the outgoing directions that can be realized with the contact 100 are illustrated as a vector diagram. The contact enables the realization of three different exit directions 106A, 106B and 106C

Soll eine elektrische Verbindung mit einem anderen Abgangswinkel der elektrischen Leitung 105 hergestellt werden, wird ein anderer Kontakt benötigt.If an electrical connection is to be made with a different departure angle of the electrical line 105, a different contact is required.

Figur 1E zeigt einen Kontakt 100' mit einem Verbindungsbereich 102, der so ausgebildet ist, dass die Abgangsrichtung der Leitung 105, die mit einem Pfeil 106E dargestellt ist, einen Winkel von 135° mit der Hauptrichtung 107 des Anschlussabschnittes 101 bildet. Bei dem in Figur 1E dargestellten Ausführungsbeispiel weist der Anschlussabschnitt 101 des Kontakts 100' nach rechts. Wenn der Litzenleiter 104 auf die in Figur 1E unten liegende Seite des Kontakts 100' angeschweißt wird, dann bildet die Abgangsrichtung der Leitung 105 mit der Hauptrichtung des Anschlussabschnittes 101 einen Winkel von 225°, wie es in Figur 1F dargestellt ist. Die Abgangsrichtung der Leitung 105 ist durch einen Pfeil 106F veranschaulicht. Die beiden sich durch unterschiedliche Montagen der Leitung 105 an dem Kontakt 100' ergebenden Abgangsrichtungen sind in Figur 1G in einem Zeigerdiagramm dargestellt. Figure 1E shows a contact 100′ with a connection area 102, which is designed in such a way that the outgoing direction of the line 105, which is represented by an arrow 106E, forms an angle of 135° with the main direction 107 of the connection section 101. At the in Figure 1E illustrated embodiment, the connecting portion 101 of the contact 100 'to the right. If the stranded wire 104 is on the in Figure 1E bottom side of the contact 100' is welded on, then the outgoing direction of the line 105 forms an angle of 225° with the main direction of the connection section 101, as shown in FIG Figure 1F is shown. The outgoing direction of the line 105 is illustrated by an arrow 106F. The two are different Installation of the line 105 on the contact 100 'resulting directions are in Figure 1G shown in a vector diagram.

Wie aus diesen Beispielen ersichtlich ist, lassen herkömmliche Kontakte nur wenige Abgangsrichtungen für eine abgehende Leitung zu. In der Regel sind nicht mehr als zwei bis drei Abgangsrichtungen darstellbar, sodass für unterschiedliche Anwendungsfälle jeweils passende Kontakte vorgehalten werden müssen. Dieser Umstand erhöht den Aufwand in Bezug auf die Lagerhaltung von unterschiedlichen Teilen sowie Werkzeugkosten, weil für unterschiedliche Teile in der Regel auch unterschiedliche Werkzeuge bereitzustellen sind.As can be seen from these examples, conventional contacts only allow a few outgoing directions for an outgoing line. As a rule, no more than two to three outlet directions can be represented, so that suitable contacts must be kept available for different applications. This circumstance increases the effort in relation to the storage of different parts as well as tool costs, because different tools usually have to be provided for different parts.

Figur 2A zeigt einen Kontakt 200 gemäß der vorliegenden Erfindung. Der Kontakt weist einen Anschlussabschnitt 201 auf, der in einen scheibenförmiger Verbindungsbereich 202 übergeht. Der Anschlussabschnitt 201 ist mit einer Durchgangsbohrung 203 für eine Befestigungsschraube (nicht dargestellt) versehen. Der scheibenförmige Verbindungsbereich 202 gestattet das Anschweißen des Litzenleiters 104 mit einem beliebigen Abgangswinkel, der beispielsweise in einem Bereich von 30°-330° in Bezug auf die Hauptrichtung 107 des Anschlussabschnittes 201 liegt, was in dem Zeigerdiagramm in Figur 2B veranschaulicht ist. Figure 2A Figure 2 shows a contact 200 according to the present invention. The contact has a connection section 201 which merges into a disk-shaped connection area 202 . The connecting portion 201 is provided with a through hole 203 for a fastening screw (not shown). The disk-shaped connection area 202 allows the stranded conductor 104 to be welded on at any angle of departure, which is, for example, in a range of 30°-330° in relation to the main direction 107 of the connection section 201, which is shown in the vector diagram in Figure 2B is illustrated.

Bei dem in Figur 2A gezeigten Kontakt 200 hat der Verbindungsbereich 202 einen kreisförmigen Rand 203. Der Verbindungsbereich 202 kann aber auch anders gestaltet sein und beispielsweise einen vieleckigen Rand aufweisen, insbesondere einen 6-eckigen oder 8-eckigen Rand. Auf die genaue Gestaltung des Verbindungsbereiches 202 kommt es nicht an. Wesentlich ist lediglich, dass der Verbindungsbereich eine Vielzahl von Abgangsrichtungen für eine angeschweißte Leitung 105 zulässt.At the in Figure 2A In the contact 200 shown, the connection area 202 has a circular edge 203. However, the connection area 202 can also be designed differently and, for example, have a polygonal edge, in particular a hexagonal or octagonal edge. The exact design of the connection area 202 is not important. The only important thing is that the connection area permits a large number of outlet directions for a welded-on line 105 .

Bei einem Kontakt 200 mit einem vieleckigen Rand 203 ist es darüber hinaus auch möglich, eine Leitung 105 stirnseitig an einen geraden Abschnitt des Randes 203 anzuschweißen. Im Falle eines Litzenleiters 104 ist es hierfür erforderlich, den Litzenleiter zunächst zu kompaktieren, sodass ein massives Ende des Litzenleiters 104 entsteht, das beispielsweise mittels Laserschweißen an den Rand 203 des Kontakts 200 angeschweißt werden kann. Im Falle eines massiven Leiters entfällt natürlich der Arbeitsschritt des Kompaktierens.In the case of a contact 200 with a polygonal edge 203, it is also possible to weld a line 105 to a straight section of the edge 203 at the end face. In the case of a stranded conductor 104, it is necessary for this to first compact the stranded conductor so that a solid end of the stranded conductor 104 is produced, for example by means of laser welding can be welded to the edge 203 of the contact 200. In the case of a solid conductor, the compacting step is of course omitted.

Der Kontakt 200 ist durch die hohe Variabilität in Bezug auf die realisierbaren Abgangswinkel einer an den Kontakt 200 angeschweißten Leitung 105 universell einsetzbar. Auf diese Weise lässt sich die Anzahl der notwendigen Teile für unterschiedliche Einbausituationen reduzieren. Gleichzeitig können damit auch häufig Werkzeugkosten gesenkt werden.The contact 200 can be used universally due to the high variability in relation to the outlet angle that can be realized for a line 105 welded to the contact 200 . In this way, the number of parts required for different installation situations can be reduced. At the same time, tool costs can often be reduced.

Figur 2C zeigt ein Ausführungsbeispiel der Erfindung, bei dem der Kontakt 200 unmittelbar an einem Ende einer massiven Stromschiene 204 angeformt ist. Mit dieser Ausführungsform können in bestimmten Anwendungsfällen Arbeitsschritte und Teile gespart werden, weil das Anbringen eines separaten Kontakts 200 an der Stromschiene 204 entfällt. Figure 2C shows an embodiment of the invention, in which the contact 200 is formed directly on one end of a solid busbar 204. With this embodiment, work steps and parts can be saved in certain applications because there is no need to attach a separate contact 200 to the busbar 204 .

Bezuaszeichenlistereference list

100100
KontaktContact
101101
Anschlussabschnittconnector section
102102
Verbindungsbereichconnection area
103103
Durchgangsbohrungthrough hole
104104
Litzenleiterstranded wire
105105
LeitungManagement
106106
Abgangsrichtungexit direction
107107
Hauptrichtung AnschlussabschnittMain direction connection section
108108
Schweißpunktspot weld
200200
KontaktContact
201201
Anschlussabschnittconnector section
202202
Verbindungsbereichconnection area
203203
Randedge
204204
Stromschienepower rail

Claims (4)

  1. An arrangement consisting of an electric line (105) and a contact (200) having a connection section (201) for making a clamping contact and having a disc-shaped connection area (202), wherein the longitudinal extension of the connection section (201) defines a main direction (107), wherein one end of the electric line is welded to the connection area (202) of the contact and wherein the connection area (202) allows a plurality of outgoing directions (106) of the electric line with respect to the main direction (107).
  2. The arrangement according to claim 1, characterized in that the line (105) is welded onto a main surface of the connection area (202).
  3. The arrangement according to claim 1, characterized in that an end face of the line (105) is welded with an edge (203) of the connection area (202) designed as a polygon.
  4. The arrangement according to claim 1 or 2, characterized in that the contact is integrally formed at one end of a bus bar in such a way that a line (105) can be welded to the connection area (202) in an electrically conductive manner.
EP19306566.1A 2018-12-17 2019-12-04 Contact with universal connection area Active EP3671964B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018005770.3U DE202018005770U1 (en) 2018-12-17 2018-12-17 Contact with universal connection area

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EP3671964A1 EP3671964A1 (en) 2020-06-24
EP3671964B1 true EP3671964B1 (en) 2023-08-02

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EP19306566.1A Active EP3671964B1 (en) 2018-12-17 2019-12-04 Contact with universal connection area

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DE (1) DE202018005770U1 (en)
ES (1) ES2962689T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3716408B1 (en) 2019-03-29 2022-06-22 Nexans Flexible contact safety for electrical connection

Citations (3)

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Publication number Priority date Publication date Assignee Title
JPH09260009A (en) * 1996-03-21 1997-10-03 Fujikura Ltd Method of connecting conductive film to cable and connecting terminal therefor
WO2012152543A1 (en) * 2011-05-10 2012-11-15 Saint-Gobain Glass France Disk having an electric connecting element
US20160254602A1 (en) * 2015-02-27 2016-09-01 Gentherm Gmbh Sleeve, contacting device and method for welding thin, stranded conductors by ultrasonic welding

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JPS52122387U (en) * 1976-03-16 1977-09-17
JPH0631657Y2 (en) * 1988-09-26 1994-08-22 東京電力株式会社 Battledore terminal
JP3389731B2 (en) * 1995-03-14 2003-03-24 住友電装株式会社 Connection jig for combination terminal fitting
US6864015B2 (en) * 2001-07-17 2005-03-08 Delphi Technologies, Inc. Anti-rotation terminal connection assembly
JP5236091B2 (en) * 2012-02-13 2013-07-17 中国電力株式会社 Connection terminals for electric wires and electrical equipment
DE102016200363B4 (en) * 2016-01-14 2018-02-15 Lisa Dräxlmaier GmbH contact element
DE102016125748B3 (en) * 2016-11-16 2018-03-01 Auto-Kabel Management Gmbh Connection of an electrical conductor with a connection part

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Publication number Priority date Publication date Assignee Title
JPH09260009A (en) * 1996-03-21 1997-10-03 Fujikura Ltd Method of connecting conductive film to cable and connecting terminal therefor
WO2012152543A1 (en) * 2011-05-10 2012-11-15 Saint-Gobain Glass France Disk having an electric connecting element
US20160254602A1 (en) * 2015-02-27 2016-09-01 Gentherm Gmbh Sleeve, contacting device and method for welding thin, stranded conductors by ultrasonic welding

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DE202018005770U1 (en) 2019-01-16
ES2962689T3 (en) 2024-03-20

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