WO1999008339A1 - High current contact device - Google Patents

High current contact device Download PDF

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Publication number
WO1999008339A1
WO1999008339A1 PCT/EP1998/004826 EP9804826W WO9908339A1 WO 1999008339 A1 WO1999008339 A1 WO 1999008339A1 EP 9804826 W EP9804826 W EP 9804826W WO 9908339 A1 WO9908339 A1 WO 9908339A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
cable
receiving part
contact device
cable receiving
Prior art date
Application number
PCT/EP1998/004826
Other languages
German (de)
French (fr)
Inventor
Horst Ullrich
Original Assignee
Mannesmann Vdo Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mannesmann Vdo Ag filed Critical Mannesmann Vdo Ag
Priority to DE59802258T priority Critical patent/DE59802258D1/en
Priority to EP98946270A priority patent/EP1002346B1/en
Priority to JP2000506694A priority patent/JP2001512892A/en
Publication of WO1999008339A1 publication Critical patent/WO1999008339A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/81—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to another cable except for flat or ribbon cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/515—Terminal blocks providing connections to wires or cables
    • 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
    • H01R11/12—End pieces terminating in an eye, hook, or fork
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals

Definitions

  • the invention relates to a high-current contact device, in particular for motor vehicles, consisting of a cable receiving part on which a high current-carrying cable can be mechanically connected to a cable guide rail and a contact fastening part for attachment to a contact point arranged on an insulating support, the cable receiving part and the contact fastening part being electrically and mechanically are connected to each other via a contact connecting part.
  • High-current contact devices are known for many applications, which connect a cable carrying high current to a printed circuit board.
  • the high-current contact device is a rigid part, at one end of which the cable receiving part is connected via a riveted connection to a cable guide rail which fixes the position of the cable. At the other end, the high-current contact device is soldered to a conductor track of a circuit board. The mechanical stabilization of the cable as well as the power transmission takes place via this rigid metal part.
  • the vibrations of the vehicle are transmitted to the contact during driving. Since strong tensile forces act on the cable due to its cross-section, the solder joint between the contact and the conductor track is subjected to high mechanical loads, which can lead to tearing. This effect is increased by the fact that the metal is heated by the transmission of the load current.
  • the invention is therefore based on the object of specifying a high-current contact device which ensures reliable electrical contacting in spite of vibrations to be recorded.
  • the object is achieved in that the contact connection part has at least one opening.
  • the advantage of the invention is that such contact is insensitive to vibrations. Mechanical and thermal tensions are absorbed and compensated. In particular, the transverse elasticity of the device is increased. In addition, the surface of the contact connection part is increased by the slotted design and thus an improved heat dissipation to the environment is guaranteed.
  • the opening extends along the direction of connection of the contact fastening part and the cable receiving part.
  • the length of the contact connection part is greater than the distance to be bridged between the cable receiving part and the contact fastening part, adaptation to the available installation space and the problem-free absorption of the vibrations that occur are possible.
  • the cable connecting part is resilient.
  • the longitudinal forces acting along the contact connection part are compensated for by the buckling spring-like design. This applies both to the tensile forces of the cable and to the joining forces by means of which the cable is fastened to the cable guide rail during assembly. Thus, no mechanical forces are transferred to the contact point on the conductor track and the contact is reliably prevented from coming off.
  • the contact connection part has at least one loop-like shape in the form of a compensating arch.
  • This shape is approximately perpendicular to the direction of connection between the cable receiving part and the contact fastening part.
  • the formation is advantageously arranged between the cable receiving part and the contact fastening part.
  • the formation has at least one leg, which is formed parallel to the cable receiving part.
  • Such a contact is particularly suitable for mechanical joining.
  • the cable receiving part, the contact fastening part and the contact connecting part are formed in one piece as a stamped and bent part in a simple embodiment.
  • the cable receiving part and the cable guide rail are advantageously connected to one another via a riveted connection.
  • the contact can be so firmly attached to the cable guide rail without fear that torques are transmitted that stress the contact point.
  • the heating of the screw connection which is attributable to the transmitted high current strengths likewise does not have a disadvantageous effect on the contact point.
  • FIG. 1 high-current contact device according to the prior art
  • FIG. 2 basic structure of the one-piece high-current contact device according to the invention
  • FIG. 3 side view of the high-current contact device according to the invention
  • FIG. 4 high-current contact device in the installed state
  • Figure 5 Top view of the high-current contact device according to the invention.
  • a high-current contact device as shown schematically in FIG. 1, is known from the prior art.
  • a metal part 1 which is simply cranked at each end has a cable receiving part 2 with an opening 3.
  • a cable 4 carrying high current which is known to have a large conductor cross section, is attached to one by means of a screw 5 Cable guide rail 6 attached.
  • the cable guide rail 6 serves to fix the cable 4 in its position.
  • the cable receiving part 2 has a socket 9 with an internal thread, which is riveted to the cable receiving part 2 in the opening 3.
  • the socket 9 has an anti-rotation protection 7 integrated on it.
  • the guide rail 6 is constructed in such a way that it encloses the socket 9, but there is always a minimal distance as play to these components, which results in their loose fit in the cable guide rail 6.
  • the contact has a contact fastening part 10, which is soldered to a conductor track 14 on the printed circuit board 11 via a solder joint 15.
  • the lever forces exerted on the cable receiving part 2 and originating from the cable 4 are approximately 10 to 40 N.
  • FIG. 2 shows a stamped and bent part for the high-current contact device according to the invention.
  • the metal part consists of the cable receiving part 2 with the opening 3, which can be bent by preferably 90 ° around the bending edge A and a contact fastening part 10, which is also bent by 90 ° around the bending edge B in the opposite direction.
  • the cable receiving part 2 and the contact fixing part 10 are formed at the respective ends of the metal part.
  • a cable connecting part 12 connects the cable receiving part 2 with the contact fastening part 10 to one another.
  • the connecting part 12 absorbs forces acting in the horizontal direction via the slots 13 and compensates them. Rotational effects caused by the relative displacement of the printed circuit board 11 and the cable receiving part 2 or the cable guide rail 6 can also be compensated for in this way.
  • the width of the contact fastening part 2 corresponds to the width of the connecting part 12.
  • the connecting part 12 can also be made narrower than the width of the contact receiving part 2.
  • Figure 3 shows schematically the stamped and bent part in the installed state in a side view.
  • the high-current cable 4 is led through the opening 3 of the cable receiving part 2 Screw 5 is fastened to the cable guide rail 6 with the socket 9.
  • the connection of the cable receiving part 2 and the socket 9 with the cable guide rail 6 takes place in the manufacture of the cable guide rail 6 by overmolding the cable receiving part 2 and socket 9 with an electrical insulator, preferably made of plastic.
  • the resilient effect of the connecting part 12 is additionally achieved in the special embodiment by bending the connecting part 12, which, as can be seen from FIG. 3, represents a U rotated counterclockwise by 90 °.
  • the two legs 16, 17 are guided parallel to one another, the legs also being arranged parallel to the cable receiving part 2.
  • the connecting part 12 absorbs the longitudinal forces acting in the vertical direction (arrow direction) and compensates for them.
  • This version is a particularly space-saving variant, since the U-shaped loop of the connecting part can be positioned well below the cable guide rail 6, which reduces the design of the contact and makes it more compact.
  • this loop is designed approximately C-shaped or like an open O.
  • Figure 4 shows the high-current contact device according to the invention in the installed state.
  • the cable 4 is connected to the contact-receiving part 2 via a pole shoe 4a and the screw 5.
  • the cable receiving part 2 is fastened to a housing 9, the printed circuit board 11, on which the high-current contact device is connected to the contact fastening part 10, also being arranged in the housing 9.
  • the circuit board 11 carries components, not shown, which before forming a hybrid circuit together.
  • the contact fastening part 10 is advantageously soldered together with these components in one operation on the printed circuit board.
  • Such a high-current contact device is used in an electrical pump control unit for power steering in a motor vehicle.
  • solder joint is now elastically decoupled in all axes relative to the cable screwing point.
  • the slots divide the cross-section into narrow webs and thus become cross-elastic.
  • FIG. 5b shows a view rotated by 90 ° with respect to the arrangement in FIG. 5a.
  • the partially slotted leg of the U-shaped bend can be seen starting from the fastening part 10.
  • the connecting part 12 is made of copper in order to conduct the high currents.
  • the contact is thus attached directly to the guide rail 6.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

The invention relates to a high current contact device, especially for automobiles, comprising a cable receiving part (2) to which a cable carrying a high current can be mechanically connected with a cable guide (6), and a contact fixing part (10) for fixing to a contact point (15) located on an insulating support. The cable receiving part (2) and the contact fixing part (10)are interconnected electrically and mechanically by a contact connecting part (12). A high current contact device which is able to ensure reliable electrical contacting in spite of the vibration that it has to absorb has at least one opening (13) in the contact connecting part (12).

Description

Beschreibung description
HochstromkontakteinrichtungHigh current contact device
Die Erfindung betrifft eine Hochstromkontakteinrichtung, insbesondere für Kraftfahrzeuge, bestehend aus einem Kabelaufnahmeteil, an welchem ein Hochstrom führendes Kabel mechanisch mit einer Kabelführungsschiene verbindbar ist und einem Kontaktbefestigungsteil zur Befestigung an einer auf einem isolierenden Träger angeordneten Kontaktstelle, wobei das Kabelaufnahmeteil und das Kontaktbefestigungsteil elektrisch und mechanisch über ein Kontaktverbindungsteil miteinander verbunden sind.The invention relates to a high-current contact device, in particular for motor vehicles, consisting of a cable receiving part on which a high current-carrying cable can be mechanically connected to a cable guide rail and a contact fastening part for attachment to a contact point arranged on an insulating support, the cable receiving part and the contact fastening part being electrically and mechanically are connected to each other via a contact connecting part.
Es sind Hochstromkontakteinrichtungen für viele Anwendungen bekannt, welche ein Hochstrom führendes Kabel mit einer Leiterplatte verbinden.High-current contact devices are known for many applications, which connect a cable carrying high current to a printed circuit board.
Die Hochstromkontakteinrichtung ist dabei ein starres Teil, an dessen einem Ende das Kabelaufnahmeteil über eine Nietverbindung mit einer Kabelführungsschiene verbunden ist, welche die Lage des Kabels fixiert. Am anderen Ende ist die Hochstromkontakteinrichtung mit einer Leiterbahn einer Leiterplatte verlötet. Die mechanische Stabilisierung des Kabels als auch die Stromübertragung erfolgt dabei über dieses starre Metallteil.The high-current contact device is a rigid part, at one end of which the cable receiving part is connected via a riveted connection to a cable guide rail which fixes the position of the cable. At the other end, the high-current contact device is soldered to a conductor track of a circuit board. The mechanical stabilization of the cable as well as the power transmission takes place via this rigid metal part.
Insbesondere bei der Anwendung in Kraftfahrzeugen werden im Fahrbetrieb die Vibrationen des Fahrzeuges auf den Kontakt übertragen. Da am Kabel aufgrund seines Querschnitts starke Zugkräfte wirken, wird die Lötstelle zwischen Kontakt und Leiterbahn mechanisch stark belastet, was zum Abriß führen kann. Erhöht wird dieser Effekt dadurch, daß durch die Übertragung des Laststromes das Metall erwärmt wird. Die unterschiedli- ehe Wärmeleitfähigkeit von Metall und Leiterplatte unterstützt dabei die Ablösung des Kontaktes.Especially when used in motor vehicles, the vibrations of the vehicle are transmitted to the contact during driving. Since strong tensile forces act on the cable due to its cross-section, the solder joint between the contact and the conductor track is subjected to high mechanical loads, which can lead to tearing. This effect is increased by the fact that the metal is heated by the transmission of the load current. The different Before thermal conductivity of metal and printed circuit board supports the detachment of the contact.
Der Erfindung liegt somit die Aufgabe zugrunde, eine Hochstromkontakteinrichtung anzugeben, welcher trotz aufzunehmender Vibrationen eine sichere elektrische Kontaktierung gewährleistetet.The invention is therefore based on the object of specifying a high-current contact device which ensures reliable electrical contacting in spite of vibrations to be recorded.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß das Kontaktverbindungsteil mindestens eine Öffnung aufweist.According to the invention the object is achieved in that the contact connection part has at least one opening.
Der Vorteil der Erfindung besteht darin, daß ein solcher Kontakt gegenüber Vibrationen unempfindlich ist. Mechanische und thermische Verspannungen werden aufgenommen und ausgeglichen. Insbesondere die Querelastizität der Einrichtung wird dadurch vergrößert. Außerdem wird durch die geschlitzte Ausführung die Oberfläche des Kontaktverbindungsteils vergrößert und somit eine verbesserte Wärmeabfuhr an die Umgebung gewährleistet.The advantage of the invention is that such contact is insensitive to vibrations. Mechanical and thermal tensions are absorbed and compensated. In particular, the transverse elasticity of the device is increased. In addition, the surface of the contact connection part is increased by the slotted design and thus an improved heat dissipation to the environment is guaranteed.
In einer Ausgestaltung erstreckt sich die Öffnung längs der Verbindungsrichtung von Kontaktbefestigungsteil und Kabelaufnahmeteil.In one configuration, the opening extends along the direction of connection of the contact fastening part and the cable receiving part.
Insbesondere dann, wenn die Länge des Kontakverbindungsteiles größer ist als der zu überbrückende Abstand zwischen Kabelaufnahmeteil und Kontaktbefestigungsteil, ist eine Anpassung an den vorhanden Bauraum und die problemlose Aufnahme der auftretenden Vibrationen möglich.In particular, if the length of the contact connection part is greater than the distance to be bridged between the cable receiving part and the contact fastening part, adaptation to the available installation space and the problem-free absorption of the vibrations that occur are possible.
In einer vorteilhaften Ausführung ist das Kabelverbindungsteil federnd ausgebildet. Die entlang des Kontaktverbindungsteiles wirkenden Längskräfte werden durch die knickfederartige Ausbildung kompensiert. Dies gilt sowohl für die Zugkräfte des Kabels als auch für die Fügekräfte, mittels welchem das Kabel bei der Montage an der Kabelführungsschiene befestigt wird. Es werden somit keine mechanischen Kräfte auf die Kontaktstelle der Leiterbahn übertragen und ein Ablösen des Kontaktes sicher verhindert.In an advantageous embodiment, the cable connecting part is resilient. The longitudinal forces acting along the contact connection part are compensated for by the buckling spring-like design. This applies both to the tensile forces of the cable and to the joining forces by means of which the cable is fastened to the cable guide rail during assembly. Thus, no mechanical forces are transferred to the contact point on the conductor track and the contact is reliably prevented from coming off.
In einer Weiterbildung weist das Kontaktverbindungsteil mindestens eine schleifenähnliche Ausformung in Form eines Ausgleichsbogens auf.In one development, the contact connection part has at least one loop-like shape in the form of a compensating arch.
Diese Ausformung ist annähernd senkrecht zur Verbindungsrichtung zwischen Kabelaufnahmeteil und Kontaktbefestigungsteil ausgebildet. Vorteilhafterweise ist die Ausformung zwischen Kabelaufnahmeteil und Kontaktbefestigungsteil angeordnet.This shape is approximately perpendicular to the direction of connection between the cable receiving part and the contact fastening part. The formation is advantageously arranged between the cable receiving part and the contact fastening part.
In einer Weiterbildung weist die Ausformung mindestens einen Schenkel auf, welcher parallel zum Kabelaufnahmeteil ausgebildet ist.In a further development, the formation has at least one leg, which is formed parallel to the cable receiving part.
Ein solcher Kontakt eignet sich besonders für ein maschinelles Fügen.Such a contact is particularly suitable for mechanical joining.
Das Kabelaufnahmeteil, das Kontaktbefestigungsteil und das Kontaktverbindungsteil sind in einer einfachen Ausführung einstückig als Stanz- Biege-Teil ausgebildet.The cable receiving part, the contact fastening part and the contact connecting part are formed in one piece as a stamped and bent part in a simple embodiment.
Vorteilhafterweise sind das Kabelaufnahmeteil und die Kabelführungsschiene über eine Nietverbindung miteinander verbunden. Der Kontakt kann so fest an der Kabelführungsschiene angebracht werden, ohne daß befürchtet werden muß, daß Drehmomente übertragen werden, die die Kontaktstelle belasten. Die auf die übertragenen hohen Stromstärken zurückzuführende Erwärmung der Schraubverbindung wirkt sich ebenfalls nicht nachteilig auf die Kontaktstelle aus.The cable receiving part and the cable guide rail are advantageously connected to one another via a riveted connection. The contact can be so firmly attached to the cable guide rail without fear that torques are transmitted that stress the contact point. The heating of the screw connection which is attributable to the transmitted high current strengths likewise does not have a disadvantageous effect on the contact point.
Die Erfindung läßt zahlreiche Ausführungformen zu. Eines davon soll anhand der in der Zeichnung dargestellten Figuren näher erläutert werden.The invention permits numerous embodiments. One of these will be explained in more detail with reference to the figures shown in the drawing.
Es zeigtIt shows
Figur 1 : Hochstromkontakteinrichtung gemäß Stand der Technik,FIG. 1: high-current contact device according to the prior art,
Figur 2: prinzipieller Aufbau der erfindungsgemäßen einstückigen Hochstromkontakteinrichtung,FIG. 2: basic structure of the one-piece high-current contact device according to the invention,
Figur 3: Seitenansicht der erfindungsgemäßen Hochstromkontakteinrichtung,FIG. 3: side view of the high-current contact device according to the invention,
Figur 4: Hochstromkontakteinrichtung im eingebauten Zustand,FIG. 4: high-current contact device in the installed state,
Figur 5: Draufsicht der erfindungsgemäßen Hochstromkontakteinrichtung.Figure 5: Top view of the high-current contact device according to the invention.
In den Figuren sind gleiche Merkmale mit gleichen Bezugszeichen gekennzeichnet.In the figures, the same features are identified by the same reference symbols.
Aus dem Stand der Technik ist eine Hochstromkontakteinrichtung bekannt, wie sie in Figur 1 schematisch dargestellt ist. Ein an jedem Ende einfach gekröpftes Metallteil 1 weist ein Kabelaufnahmeteil 2 mit einer Öffnung 3 auf. Ein Hochstrom führendes Kabel 4, das bekanntlicherweise einen großen Leiterquerschnitt hat, ist mittels einer Schraube 5 an einer Kabelführungsschiene 6 befestigt. Die Kabelführungsschiene 6 dient zur Fixierung des Kabels 4 in seiner Lage.A high-current contact device, as shown schematically in FIG. 1, is known from the prior art. A metal part 1 which is simply cranked at each end has a cable receiving part 2 with an opening 3. A cable 4 carrying high current, which is known to have a large conductor cross section, is attached to one by means of a screw 5 Cable guide rail 6 attached. The cable guide rail 6 serves to fix the cable 4 in its position.
Zur Aufnahme der Schraube 5 besitzt das Kabelaufnahmeteil 2 eine Buchse 9 mit Innengewinde, die in der Öffnung 3 mit dem Kabelaufnahmeteil 2 vernietet ist. Die Buchse 9 weist dabei einen an dieser integrierten Verdrehschutz 7 auf.To receive the screw 5, the cable receiving part 2 has a socket 9 with an internal thread, which is riveted to the cable receiving part 2 in the opening 3. The socket 9 has an anti-rotation protection 7 integrated on it.
Die Führungsschiene 6 ist so gebaut, daß sie die Buchse 9 umschließt, wobei aber immer ein minimaler Abstand als Spiel zu diesen Bauteilen gegeben ist, was deren lockeren Sitz in der Kabelführungsschiene 6 zur Folge hat.The guide rail 6 is constructed in such a way that it encloses the socket 9, but there is always a minimal distance as play to these components, which results in their loose fit in the cable guide rail 6.
Am entgegensetzten Ende weist der Kontakt ein Kontaktbefestigungsteil 10 auf, das mit einer Leiterbahn 14 auf der Leiterplatte 11 über eine Lötstelle 15 verlötet ist.At the opposite end, the contact has a contact fastening part 10, which is soldered to a conductor track 14 on the printed circuit board 11 via a solder joint 15.
Bei den in Kraftfahrzeugen existierenden Bedingungen betragen die an dem Kabelaufnahmeteil 2 anliegenden, vom Kabel 4 ausgehenden Hebelkräfte ungefähr 10...40 N. Hinzu kommen noch Schub- und Zugkräfte an der Kontaktstelle mit der Leiterplatte 11.In the conditions existing in motor vehicles, the lever forces exerted on the cable receiving part 2 and originating from the cable 4 are approximately 10 to 40 N. In addition, there are shear and tensile forces at the contact point with the printed circuit board 11.
Bei einer Vergrößerung des Übergangswiderstandes um nur 5 mΩ, beispielsweise durch ein leichtes Anziehen der Schraube oder Schäden der Lötstelle, kommt es bei einem Strom von ungefähr 75 A zu einem Verlustleistungsumsatz vom 25 W. Bezogen auf eine Fläche von ca. 10 mm2 sorgt dies für eine starke Erhitzung.If the contact resistance is increased by only 5 mΩ, for example due to a slight tightening of the screw or damage to the soldering point, a power dissipation of 25 W occurs at a current of approximately 75 A. This takes up an area of approximately 10 mm 2 for strong heating.
Diesen Bedingungen trägt die nachfolgend beschriebene Hochstromkontakteinrichtung Rechnung. In Figur 2 ist ein Stanz-Biege-Teil für die erfindungsgemäße Hochstromkontakteinrichtung dargestellt. Das Metallteil besteht aus dem Kabelaufnahmeteil 2 mit der Öffnung 3, das um die Biegekante A um vorzugsweise 90° biegbar ist und einen Kontaktbefestigungsteil 10, welcher um die Biegekante B in die entgegengesetzte Richtung ebenfalls um 90° gebogen ist. Das Kabelaufnahmeteil 2 und das Kontaktbefestigungsteil 10 sind an den jeweiligen Enden des Metallteiles ausgebildet.The high-current contact device described below takes these conditions into account. FIG. 2 shows a stamped and bent part for the high-current contact device according to the invention. The metal part consists of the cable receiving part 2 with the opening 3, which can be bent by preferably 90 ° around the bending edge A and a contact fastening part 10, which is also bent by 90 ° around the bending edge B in the opposite direction. The cable receiving part 2 and the contact fixing part 10 are formed at the respective ends of the metal part.
Ein Kabelverbindungsteil 12 verbindet das Kabelaufnahmeteil 2 mit dem Kontaktbefestigungsteil 10 untereinander.A cable connecting part 12 connects the cable receiving part 2 with the contact fastening part 10 to one another.
Innerhalb des Verbindungsteiles 12 sind in dessen Längsausdehnung 3 Schlitze 13 ausgebildet die an den Stegen 18 und 19 enden. Dadurch ist sichergestellt, daß das Verbindungsteil 12 federnde Eigenschaften aufweist.Within the connecting part 12 in its longitudinal extent 3 slots 13 are formed which end at the webs 18 and 19. This ensures that the connecting part 12 has resilient properties.
Das Verbindungsteil 12 nimmt in horizontale Richtung wirkende Kräfte über die Schlitze 13 auf und gleicht diese aus. Auch Drehwirkungen, die durch die relative Verschiebung von Leiterplatte 11 und Kabelaufnahmeteil 2 bzw. Kabelführungschiene 6 hervorgerufen werden, können so ausgeglichen werden.The connecting part 12 absorbs forces acting in the horizontal direction via the slots 13 and compensates them. Rotational effects caused by the relative displacement of the printed circuit board 11 and the cable receiving part 2 or the cable guide rail 6 can also be compensated for in this way.
In dieser Ausgestaltung entspricht die Breite des Kontaktbefestigungsteiles 2 der Breite des Verbindungsteiles 12. Das Verbindungsteil 12 kann aber auch schmaler gestaltet sein als die Breite des Kontaktaufnahmeteiles 2.In this embodiment, the width of the contact fastening part 2 corresponds to the width of the connecting part 12. The connecting part 12 can also be made narrower than the width of the contact receiving part 2.
Figur 3 zeigt schematisch das Stanz-Biege-Teil im eingebauten Zustand in Seitenansicht. Auch hier wird, wie bereits bekannt, das Hochstromkabel 4 mit einer durch die Öffnung 3 des Kabelaufnahmeteils 2 geführten Schraube 5 an der Kabelführungsschiene 6 mit der Buchse 9 befestigt. Die Verbindung des Kabelaufnahmeteils 2 und der Buchse 9 mit der Kabelführungsschiene 6 erfolgt bei der Herstellung der Kabelführungsschiene 6 durch Umspritzen von Kabelaufnahmeteil 2 und Buchse 9 mit einem elektrischen Isolator, vorzugsweise aus Kunststoff.Figure 3 shows schematically the stamped and bent part in the installed state in a side view. Here, too, as already known, the high-current cable 4 is led through the opening 3 of the cable receiving part 2 Screw 5 is fastened to the cable guide rail 6 with the socket 9. The connection of the cable receiving part 2 and the socket 9 with the cable guide rail 6 takes place in the manufacture of the cable guide rail 6 by overmolding the cable receiving part 2 and socket 9 with an electrical insulator, preferably made of plastic.
Die federnde Wirkung des Verbindungsteiles 12 wird in der speziellen Ausführung, zusätzlich durch eine Biegung des Verbindungsteiles 12 erreicht, welche, wie aus Figur 3 ersichtlich, ein entgegen dem Uhrzeigersinn um 90° gedrehtes U darstellt. Dabei sind die beiden Schenkel 16, 17 parallel zueinander geführt, wobei die Schenkel ebenfalls parallel zum Kabelaufnahmeteil 2 angeordnet sind. Das Verbindungsteil 12 nimmt die in vertikale Richtung (Pfeilrichtung) wirkenden Längskräfte auf und gleicht sie aus.The resilient effect of the connecting part 12 is additionally achieved in the special embodiment by bending the connecting part 12, which, as can be seen from FIG. 3, represents a U rotated counterclockwise by 90 °. The two legs 16, 17 are guided parallel to one another, the legs also being arranged parallel to the cable receiving part 2. The connecting part 12 absorbs the longitudinal forces acting in the vertical direction (arrow direction) and compensates for them.
Diese Ausführung ist eine besonders platzsparende Variante, da die U- förmige Schleife des Verbindungsteiles gut unterhalb der Kabelführungsschiene 6 positioniert werden kann, was die Bauform des Kontaktes verringert und diesen kompakter gestalten läßt.This version is a particularly space-saving variant, since the U-shaped loop of the connecting part can be positioned well below the cable guide rail 6, which reduces the design of the contact and makes it more compact.
Es ist aber auch vorstellbar, daß diese Schleife annähernd C-förmig oder wie ein offenes O gestaltet wird.But it is also conceivable that this loop is designed approximately C-shaped or like an open O.
Figur 4 zeigt die erfindungsgemäße Hochstromkontakteinrichtung im eingebauten Zustand. Das Kabel 4 ist über einen Polschuh 4a und die Schraube 5 mit dem Kontaktaufnahmeteil 2 verbunden. Das Kabelaufnahmeteil 2 ist an einem Gehäuse 9 befestigt, wobei die Leiterplatte 11 , auf welcher die Hochstromkontakteinrichtung mit dem Kontaktbefestigungsteil 10 verbunden ist, ebenfalls in dem Gehäuse 9 angeordnet ist. Die Leiterplatte 11 trägt dabei nicht weiter dargestellte Bauelemente, wel- ehe zusammen eine Hybridschaltung bilden. Vorteilhafterweise wird das Kontaktbefestigungsteil 10 gemeinsam mit diesen Bauelementen in einem Arbeitsgang auf der Leiterplatte verlötet.Figure 4 shows the high-current contact device according to the invention in the installed state. The cable 4 is connected to the contact-receiving part 2 via a pole shoe 4a and the screw 5. The cable receiving part 2 is fastened to a housing 9, the printed circuit board 11, on which the high-current contact device is connected to the contact fastening part 10, also being arranged in the housing 9. The circuit board 11 carries components, not shown, which before forming a hybrid circuit together. The contact fastening part 10 is advantageously soldered together with these components in one operation on the printed circuit board.
Eine solche Hochstromkontakteinrichtung findet Anwendung in einer elektrischen Pumpenansteuereinheit für eine Hilfskraftlenkung in einem Kraftfahrzeug.Such a high-current contact device is used in an electrical pump control unit for power steering in a motor vehicle.
Wie aus Figur 4 ersichtlich, ist die Lötstelle nun in allen Achsen relativ zum Kabelanschraubpunkt elastisch entkoppelt. Die Schlitze teilen den Querschnitt in schmale Stege und werden somit querelastisch.As can be seen from Figure 4, the solder joint is now elastically decoupled in all axes relative to the cable screwing point. The slots divide the cross-section into narrow webs and thus become cross-elastic.
In Figur 5a ist der Kontakt in einer Draufsicht dargestellt. Durch die Öffnung 3 des Kontaktaufnahmeteiles 2 ist der Schlitz 13 sichtbar.In Figure 5a, the contact is shown in a plan view. The slot 13 is visible through the opening 3 of the contact-receiving part 2.
Figur 5b zeigt eine gegenüber der Anordnung in Figur 5a um 90° gedrehte Ansicht. Dabei ist ausgehend vom Befestigungsteil 10 der teilweise geschlitzte Schenkel der U-förmigen Biegung erkennbar.FIG. 5b shows a view rotated by 90 ° with respect to the arrangement in FIG. 5a. The partially slotted leg of the U-shaped bend can be seen starting from the fastening part 10.
Das Verbindungsteil 12 besteht aus Kupfer, um die hohen Ströme zu leiten.The connecting part 12 is made of copper in order to conduct the high currents.
Zur Verbesserung der Lötbarkeit ist es zumindest im Bereich des Befestigungsteiles 10 verzinnt.To improve the solderability, it is tin-plated at least in the area of the fastening part 10.
Ein Vernieten der Öse nach dem Stand der Technik entfällt und ein maschinelles Fügen ist gewährleistet.There is no riveting of the eyelet according to the prior art and mechanical joining is guaranteed.
Der Kontakt wird somit direkt an der Führungsschiene 6 befestigt. The contact is thus attached directly to the guide rail 6.

Claims

Patentansprüche claims
1. Hochstromkontakteinrichtung, insbesondere für Kraftfahrzeuge, bestehend aus einem Kabelaufnahmeteil, an welchem ein Hochstrom führendes Kabel mechanisch mit einer Kabelführungsschiene verbindbar ist und einem Kontaktbefestigungsteil zur Befestigung an einer auf einem isolierenden Träger angeordneten Kontaktstelle, wobei das Kabelaufnahmeteil und das Kontaktbefestigungsteil elektrisch und mechanisch über ein Kontaktverbin-dungsteil miteinander verbunden sind, dadurch gekennzeichnet, daß das Kontaktverbindungsteil (12) mindestens eine Öffnung (13) aufweist.1.High current contact device, in particular for motor vehicles, consisting of a cable receiving part on which a high current carrying cable can be mechanically connected to a cable guide rail and a contact fastening part for attachment to a contact point arranged on an insulating support, the cable receiving part and the contact fastening part being electrically and mechanically connected Contact connecting part are connected to one another, characterized in that the contact connecting part (12) has at least one opening (13).
2. Hochstromkontakteinrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß sich die Öffnung (13) längs der Verbindungsrichtung von Kontaktbefestigungsteil (10) und Kabelaufnahmeteil (2) erstreckt.2. High-current contact device according to claim 1, characterized in that the opening (13) extends along the connecting direction of the contact fastening part (10) and cable receiving part (2).
3. Hochstromkontakteinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Kontaktverbindungsteil (12) federnd ausgebildet ist.3. High-current contact device according to claim 1 or 2, characterized in that the contact connecting part (12) is resilient.
4. Hochstromkontakteinrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Kontaktverbindungsteil (12) mindestens eine schleifenartige Ausformung aufweist.4. High-current contact device according to claim 3, characterized in that the contact connecting part (12) has at least one loop-like shape.
5. Hochstromkontakteinrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Verformung zwischen Kabelaufnahmeteil (2) und Kontaktbefestigungsteil (10) angeordnet ist. 5. High-current contact device according to claim 4, characterized in that the deformation between the cable receiving part (2) and the contact fastening part (10) is arranged.
6. Hochstromkontakteinrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Ausformung mindestens einen Schenkel aufweist, welcher parallel zum Kabelaufnahmeteil (2) ausgebildet ist.6. High-current contact device according to claim 5, characterized in that the formation has at least one leg which is formed parallel to the cable receiving part (2).
7. Hochstromkontakteinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Kabelaufnahmeteil (2), das Kontaktbefestigungsteil (10) und das Kontaktverbindungsteil (12) einstückig als Stanzbiegeteil ausgebildet sind.7. High-current contact device according to one of the preceding claims, characterized in that the cable receiving part (2), the contact fastening part (10) and the contact connecting part (12) are integrally formed as a stamped and bent part.
8. Hochstromkontakteinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Kabelaufnahmeteil (2) und eine Buchse (9) bei der Herstellung der Kabelführungsschiene (6) durch Umspritzen mit einem Isolator miteinander verbunden sind. 8. High-current contact device according to one of the preceding claims, characterized in that the cable receiving part (2) and a socket (9) in the manufacture of the cable guide rail (6) are connected to one another by extrusion coating with an insulator.
PCT/EP1998/004826 1997-08-08 1998-08-03 High current contact device WO1999008339A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59802258T DE59802258D1 (en) 1997-08-08 1998-08-03 HIGH CURRENT CONTACT DEVICE
EP98946270A EP1002346B1 (en) 1997-08-08 1998-08-03 High current contact device
JP2000506694A JP2001512892A (en) 1997-08-08 1998-08-03 High current contact connection device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19734306A DE19734306C1 (en) 1997-08-08 1997-08-08 High current contact device
DE19734306.6 1997-08-08

Publications (1)

Publication Number Publication Date
WO1999008339A1 true WO1999008339A1 (en) 1999-02-18

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ID=7838336

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PCT/EP1998/004826 WO1999008339A1 (en) 1997-08-08 1998-08-03 High current contact device

Country Status (5)

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EP (1) EP1002346B1 (en)
JP (1) JP2001512892A (en)
KR (1) KR20000070698A (en)
DE (2) DE19734306C1 (en)
WO (1) WO1999008339A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102598880A (en) * 2009-10-29 2012-07-18 大金工业株式会社 Wiring board unit
US8755292B2 (en) 2009-11-14 2014-06-17 Samsung Electronics Co., Ltd. Apparatus and method for controlling uplink transmission power in a communication system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19841185B4 (en) * 1998-09-09 2010-08-19 Vossloh-Schwabe Deutschland Gmbh connecting device
DE10003696A1 (en) * 2000-01-28 2001-08-09 Eupec Gmbh & Co Kg Tapping device for electric current
DE102006052118A1 (en) * 2006-11-06 2008-05-08 Robert Bosch Gmbh Power electronics circuit and power electronics device with a power electronics circuit
DE102008003448B4 (en) 2008-01-08 2017-01-05 Yamaichi Electronics Deutschland Gmbh Junction box, use, solar panel, contact element, and procedure
DE102014201356A1 (en) * 2014-01-27 2015-07-30 Schaeffler Technologies AG & Co. KG Arrangement for attaching a terminal for an electrical machine to a circuit board for the power electronics
US9941614B2 (en) 2014-06-23 2018-04-10 Iriso Electronics Co., Ltd. Connection structure of connector capable of managing a large electric current
DE102017215319A1 (en) * 2017-09-01 2019-03-07 Joyson Safety Systems Germany Gmbh Belt tensioner unit for a safety belt of a motor vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2035326B1 (en) * 1970-07-16 1971-07-15 Phoenix Elektrizitaetsges H Knuemann & Co Electrical clamp
US4239324A (en) * 1978-07-29 1980-12-16 C. A. Weidmuller Kg Terminal block for printed circuits
EP0584506A1 (en) * 1992-08-24 1994-03-02 F. Wieland Elektrische Industrie GmbH Electrical junction terminal strip
DE9411457U1 (en) * 1994-07-14 1995-10-12 WECO Wester, Ebbinghaus & Co, 63452 Hanau Electrical connection terminal
DE19630424A1 (en) * 1996-07-27 1998-01-29 Mannesmann Vdo Ag High-current electrical contact e.g. for motor vehicles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2614473B1 (en) * 1987-04-22 1989-07-07 Power Compact PRISONER NUT TERMINAL FOR ELECTRONIC MODULE POWER CONNECTOR

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2035326B1 (en) * 1970-07-16 1971-07-15 Phoenix Elektrizitaetsges H Knuemann & Co Electrical clamp
US4239324A (en) * 1978-07-29 1980-12-16 C. A. Weidmuller Kg Terminal block for printed circuits
EP0584506A1 (en) * 1992-08-24 1994-03-02 F. Wieland Elektrische Industrie GmbH Electrical junction terminal strip
DE9411457U1 (en) * 1994-07-14 1995-10-12 WECO Wester, Ebbinghaus & Co, 63452 Hanau Electrical connection terminal
DE19630424A1 (en) * 1996-07-27 1998-01-29 Mannesmann Vdo Ag High-current electrical contact e.g. for motor vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102598880A (en) * 2009-10-29 2012-07-18 大金工业株式会社 Wiring board unit
US8755292B2 (en) 2009-11-14 2014-06-17 Samsung Electronics Co., Ltd. Apparatus and method for controlling uplink transmission power in a communication system

Also Published As

Publication number Publication date
DE19734306C1 (en) 1999-02-04
EP1002346A1 (en) 2000-05-24
EP1002346B1 (en) 2001-11-28
DE59802258D1 (en) 2002-01-10
KR20000070698A (en) 2000-11-25
JP2001512892A (en) 2001-08-28

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