EP2209166B1 - Electric connection - Google Patents

Electric connection Download PDF

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Publication number
EP2209166B1
EP2209166B1 EP09000443.3A EP09000443A EP2209166B1 EP 2209166 B1 EP2209166 B1 EP 2209166B1 EP 09000443 A EP09000443 A EP 09000443A EP 2209166 B1 EP2209166 B1 EP 2209166B1
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EP
European Patent Office
Prior art keywords
connecting part
contact
section
electrical connection
receiving space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
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EP09000443.3A
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German (de)
French (fr)
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EP2209166A1 (en
Inventor
Karl Wirth
Michael Zakrzewski
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Delphi Technologies Inc
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Delphi Technologies Inc
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Priority to EP09000443.3A priority Critical patent/EP2209166B1/en
Publication of EP2209166A1 publication Critical patent/EP2209166A1/en
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Publication of EP2209166B1 publication Critical patent/EP2209166B1/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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/025—Contact members formed by the conductors of a cable end
    • 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
    • H01R11/28—End pieces consisting of a ferrule or sleeve
    • 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

Definitions

  • the invention relates to an electrical connection with a first connecting part and a second connecting part which can be inserted into the first connecting part, wherein the first connecting part has a receiving space for receiving the second connecting part.
  • Such electrical connections are known in principle and have the disadvantage, in particular when used in the motor vehicle sector, that the quality of the electrical contact between the first connection part and the second connection part can be impaired by temperature fluctuations, vibrations and / or moisture.
  • US 5 106 328 A discloses an electrical connection with the features of the preamble of claim 1. Similar electrical connections are respectively in FIG DE 10 2004 041 169 B3 . DE 299 10 867 U1 . DE 10 2006 019 895 A1 and DE 44 32 596 A1 disclosed.
  • the invention has for its object to provide an electrical connection of the type mentioned, which permanently ensures reliable electrical contact between the first connection part and the second connection part.
  • the object is achieved by an electrical connection with the features of claim 1. Due to the interference fit of the second connecting part in the first connecting part, the second connecting part is fixed non-positively in the first connecting part and ensures a secure and particularly unsolvable mechanical connection of the first and second connecting part.
  • first connecting part ensures that the inserted into the first connector second connecting member always under vibration, under extreme temperatures, with drastic temperature jumps and / or increased humidity always in secure electrical contact with the first connection part is. In this way, an optimum quality of the electrical contact between the first and second connecting part is permanently ensured.
  • the receiving space has a substantially circular cross section at least in a contact region.
  • the contact region is that region of the receiving space in which the contact section of the second connecting part is actually in mechanical and electrical contact with the first connecting part.
  • the contact portion of the second connecting part has a non-circular cross-section whose maximum diameter is slightly larger than the diameter of the receiving space in the contact region.
  • the contact portion of the second connecting part at least partially on a substantially oval, elliptical or non-rectangular diamond-shaped cross section.
  • the contact portion of the second connecting part inserted into the first connecting part is in contact with the first connecting part in at least two spaced-apart and in particular opposite contact regions.
  • the amount of excess of the contact portion of the second connecting part relative to the receiving space of the first connecting part in the order of 10 -2 mm to 10 -1 mm.
  • Such a dimensioned oversize is sufficiently large to hold the inserted second connecting part non-positively in the first connecting part, ie, in order to provide a press fit.
  • the oversize is so small that upon insertion of the second connecting part into the first connecting part a deformation of the first connecting part is effected, which is so low that the first connecting part shows elastic properties even if it is not made of a pronounced spring material , such as spring steel, is formed.
  • the first connection part may thus be formed, for example, from a normal steel.
  • the electrical connection can be made in a particularly simple and cost-effective manner, when the contact portion of the second connecting part is made by a crimping operation.
  • the second connection part may be a round cross-section cable which has been machined in its contact section by a suitable crimping tool to provide the desired non-circular cross section of the contact section.
  • the first connection part may have a connection contact, e.g. comprise a threaded bolt, which it is for example to connect with the above-mentioned round cable.
  • Fig. 1 shows an electrical connection in a pre-assembly state.
  • the electrical connection comprises two first connecting parts 10 and two second connecting parts 12, which are to be connected to the first connecting parts 10.
  • the second connecting parts 12 are round conductors, for example round wires with a thickness in the range of a few millimeters.
  • the second connecting parts 12 are held together by a carrier part 14, which may be, for example, an injection-molded part having a plastic material.
  • the second connecting parts 12 In the area of their free ends 16 provided for connection to the first connecting parts 10, the second connecting parts 12 each have a contact section 18, which will be described in more detail below.
  • the first connecting parts 10 are threaded bolts which are formed from an electrically conductive material, eg steel, and which each have a receiving space 20 (FIG. Fig. 4 ) for receiving in each case a second connecting part 12.
  • the first connecting parts 10 are attached to the free ends 16 of the second connecting parts 12, as in Fig. 2 is shown. Subsequently, the mated first and second connecting parts 10, 12 are inserted into a housing 22, which may be, for example, a plastic material having an injection molded part ( Fig. 3 ).
  • the second connecting parts 12 inserted in the first connecting parts 10 are held in them by means of a press fit.
  • the receiving space 20 provided for receiving the respective second connecting part 12 of each first connecting part 10 has a substantially circular cross-section.
  • the contact portion 18 of the second connecting part 12 has a non-circular cross-section, in the illustrated embodiment has a substantially non-rectangular diamond-shaped cross section ( Fig. 4b ).
  • the cross section of the contact section 18 may also be oval or elliptical.
  • the non-circular cross-section of the contact portion 18 can be made for example by simply squeezing the originally round cable or wire by means of a suitable crimping tool.
  • the contact section 18 of the second connecting part 12 has an oversize in relation to the receiving space 20 of the first connecting part 10 in at least one direction, in the present embodiment in the direction of the main axis of the rhombus. the maximum extent of the contact section 18 in the radial direction is greater than the radius of the receiving space 20.
  • the insertion of the second connecting part 12 into the receiving space 20 of the first connecting part 10 leads to a deformation of the receiving space 20 bounding wall 24 of the first connecting part 10.
  • the excess of the contact portion 18 is chosen so large that a sufficient firm compression fit of the second connecting part 12 is achieved in the first connecting part 10, but at the same time so small that the deformation of the wall 24 of the first connecting part 10 is substantially exclusively elastic nature.
  • a suitable excess of contact portion 18 is, for example, on the order of one hundredth of a millimeter, e.g. in the range of 10 to 20 hundredths of a millimeter.
  • the contact section 18 of the second connecting part 12 can be replaced by e.g. Increase pinch in one direction so far that its maximum diameter, for example, is about 2.7 mm and thus by about 0.15 mm larger than the diameter of the receiving space 20.
  • the resulting deformation of the receiving space 20 bounding wall 24 of the first connection part 10 is so minimal that it This is an at least approximately exclusively elastic deformation, which due to their elastic nature not only under vibrations, but also under extreme temperatures or temperature jumps and under increased humidity for a permanently reliable mechanical and electrical connection between the first and second connecting part 10, 12 provides ,
  • the receiving space 20 bounding wall 24 of the first connecting part 10 has in the illustrated embodiment over at least the entire axial length of the receiving space 20 has a substantially constant wall thickness.

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  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Description

Die Erfindung betrifft eine elektrische Verbindung mit einem ersten Verbindungsteil und einem in das erste Verbindungsteil einsteckbaren zweiten Verbindungsteil, wobei das erste Verbindungsteil einen Aufnahmeraum zur Aufnahme des zweiten Verbindungsteils aufweist.The invention relates to an electrical connection with a first connecting part and a second connecting part which can be inserted into the first connecting part, wherein the first connecting part has a receiving space for receiving the second connecting part.

Derartige elektrische Verbindungen sind grundsätzlich bekannt und weisen, insbesondere bei einem Einsatz im Kraftfahrzeugbereich, den Nachteil auf, dass die Qualität des elektrischen Kontakts zwischen dem ersten Verbindungsteil und dem zweiten Verbindungsteil durch Temperaturschwankungen, Vibrationen und/ oder Feuchtigkeit beeinträchtigt werden kann.Such electrical connections are known in principle and have the disadvantage, in particular when used in the motor vehicle sector, that the quality of the electrical contact between the first connection part and the second connection part can be impaired by temperature fluctuations, vibrations and / or moisture.

US 5 106 328 A offenbart eine elektrische Verbindung mit den Merkmalen des Oberbegriffs des Anspruchs 1. Ähnliche elektrische Verbindungen sind jeweils in DE 10 2004 041 169 B3 , DE 299 10 867 U1 , DE 10 2006 019 895 A1 und DE 44 32 596 A1 offenbart. US 5 106 328 A discloses an electrical connection with the features of the preamble of claim 1. Similar electrical connections are respectively in FIG DE 10 2004 041 169 B3 . DE 299 10 867 U1 . DE 10 2006 019 895 A1 and DE 44 32 596 A1 disclosed.

Der Erfindung liegt die Aufgabe zugrunde, eine elektrische Verbindung der eingangs genannten Art zu schaffen, welche einen zuverlässigen elektrischen Kontakt zwischen dem ersten Verbindungsteil und dem zweiten Verbindungsteil dauerhaft gewährleistet.The invention has for its object to provide an electrical connection of the type mentioned, which permanently ensures reliable electrical contact between the first connection part and the second connection part.

Die Aufgabe wird durch eine elektrische Verbindung mit den Merkmalen des Anspruchs 1 gelöst. Durch die Presspassung des zweiten Verbindungsteils in dem ersten Verbindungsteil ist das zweite Verbindungsteil kraftschlüssig in dem ersten Verbindungsteil fixiert und eine sichere und insbesondere unlösbare mechanische Verbindung von erstem und zweitem Verbindungsteil gewährleistet.The object is achieved by an electrical connection with the features of claim 1. Due to the interference fit of the second connecting part in the first connecting part, the second connecting part is fixed non-positively in the first connecting part and ensures a secure and particularly unsolvable mechanical connection of the first and second connecting part.

Gleichzeitig sorgt die mit der elastischen Verformung einhergehende Federeigenschaft bzw. Flexibilität des ersten Verbindungsteils dafür, dass das in das erste Verbindungsteil eingesteckte zweite Verbindungsteil auch unter Vibrationen, unter extremen Temperaturen, bei drastischen Temperatursprüngen und/oder bei erhöhter Feuchtigkeit stets in sicherem elektrischen Kontakt mit dem ersten Verbindungsteil steht. Auf diese Weise ist eine optimale Qualität des elektrischen Kontakts zwischen erstem und zweitem Verbindungsteil dauerhaft sichergestellt.At the same time associated with the elastic deformation spring property or flexibility of the first connecting part ensures that the inserted into the first connector second connecting member always under vibration, under extreme temperatures, with drastic temperature jumps and / or increased humidity always in secure electrical contact with the first connection part is. In this way, an optimum quality of the electrical contact between the first and second connecting part is permanently ensured.

Der Aufnahmeraum weist zumindest in einer Kontaktregion einen im Wesentlichen kreisförmigen Querschnitt auf. Als Kontaktregion wird hier derjenige Bereich des Aufnahmeraums bezeichnet, in welchem der Kontaktabschnitt des zweiten Verbindungsteils tatsächlich mechanisch und elektrisch mit dem ersten Verbindungsteil in Kontakt steht.The receiving space has a substantially circular cross section at least in a contact region. In this case, the contact region is that region of the receiving space in which the contact section of the second connecting part is actually in mechanical and electrical contact with the first connecting part.

Dabei weist der Kontaktabschnitt des zweiten Verbindungsteils einen nichtkreisförmigen Querschnitt auf, dessen maximaler Durchmesser ein wenig größer als der Durchmesser des Aufnahmeraums in der Kontaktregion ist. Durch die Ausbildung des Kontaktabschnitts mit nichtkreisförmigem Querschnitt wird, insbesondere wenn die Kontaktregion des Aufnahmeraums einen im Wesentlichen kreisförmigen Querschnitt besitzt, erreicht, dass der Kontaktabschnitt des zweiten Verbindungsteils in genau definierten Bereichen mit dem ersten Verbindungsteil in Kontakt steht. Die durch das zweite Verbindungsteil auf das erste Verbindungsteil ausgeübten Kräfte sind folglich auf begrenzte Bereiche fokussiert, was sich auf die elastische Verformung des ersten Verbindungsteils und dadurch letztlich auf die Kontaktqualität vorteilhaft auswirkt.In this case, the contact portion of the second connecting part has a non-circular cross-section whose maximum diameter is slightly larger than the diameter of the receiving space in the contact region. By forming the contact portion of non-circular cross-section, in particular when the contact region of the receiving space has a substantially circular cross-section, it is achieved that the contact portion of the second connecting part is in exactly defined areas in contact with the first connecting part. The forces exerted on the first connecting part by the second connecting part are consequently focused on limited areas, which has an advantageous effect on the elastic deformation of the first connecting part and thereby ultimately on the contact quality.

Erfindungsgemäß weist der Kontaktabschnitt des zweiten Verbindungsteils zumindest bereichsweise einen im Wesentlichen ovalen, elliptischen oder nicht rechtwinkligen rautenförmigen Querschnitt auf.According to the invention, the contact portion of the second connecting part at least partially on a substantially oval, elliptical or non-rectangular diamond-shaped cross section.

Vorteilhafte Ausbildungen der Erfindung sind den Unteransprüchen, der Beschreibung und der Zeichnung zu entnehmen.Advantageous embodiments of the invention are described in the dependent claims, the description and the drawings.

Gemäß einer Ausführungsform steht der Kontaktabschnitt des in den ersten Verbindungsteil eingesteckten zweiten Verbindungsteils in wenigstens zwei zueinander beabstandeten und insbesondere einander gegenüberliegenden Kontaktbereichen mit dem ersten Verbindungsteil in Kontakt.According to one embodiment, the contact portion of the second connecting part inserted into the first connecting part is in contact with the first connecting part in at least two spaced-apart and in particular opposite contact regions.

Vorteilhafterweise liegt der Betrag des Übermaßes des Kontaktabschnitts des zweiten Verbindungsteils gegenüber dem Aufnahmeraum des ersten Verbindungsteils in der Größenordnung von 10-2 mm bis 10-1 mm. Ein derart dimensioniertes Übermaß ist ausreichend groß, um das eingesteckte zweite Verbindungsteil kraftschlüssig in dem ersten Verbindungsteil zu halten, d.h. also um für eine Presspassung zu sorgen. Gleichzeitig ist das Übermaß ausreichend klein, um im Wesentlichen nur eine elastische - und zumindest keine signifikante plastische - Verformung des ersten Verbindungsteils zu bewirken. Das Übermaß ist mit anderen Worten so klein dimensioniert, dass beim Einstecken des zweiten Verbindungsteils in das erste Verbindungsteil eine Verformung des ersten Verbindungsteils bewirkt wird, die so gering ausfällt, dass das erste Verbindungsteil selbst dann elastische Eigenschaften zeigt, wenn es nicht aus einem ausgesprochenen Federmaterial, wie z.B. Federstahl, gebildet ist. Das erste Verbindungsteil kann so beispielsweise aus einem normalen Stahl gebildet sein.Advantageously, the amount of excess of the contact portion of the second connecting part relative to the receiving space of the first connecting part in the order of 10 -2 mm to 10 -1 mm. Such a dimensioned oversize is sufficiently large to hold the inserted second connecting part non-positively in the first connecting part, ie, in order to provide a press fit. At the same time that is Oversize sufficiently small to cause substantially only an elastic - and at least no significant plastic - deformation of the first connecting part. In other words, the oversize is so small that upon insertion of the second connecting part into the first connecting part a deformation of the first connecting part is effected, which is so low that the first connecting part shows elastic properties even if it is not made of a pronounced spring material , such as spring steel, is formed. The first connection part may thus be formed, for example, from a normal steel.

Die elektrische Verbindung lässt sich auf besonders einfache und kostengünstige Art und Weise fertigen, wenn der Kontaktabschnitt des zweiten Verbindungsteils durch einen Quetschvorgang hergestellt ist. Bei dem zweiten Verbindungsteil kann es sich beispielsweise um ein Kabel mit rundem Querschnitt handeln, welches in seinem Kontaktabschnitt durch ein geeignetes Quetschwerkzeug bearbeitet wurde, um den gewünschten unrunden Querschnitt des Kontaktabschnitts zu schaffen.The electrical connection can be made in a particularly simple and cost-effective manner, when the contact portion of the second connecting part is made by a crimping operation. For example, the second connection part may be a round cross-section cable which has been machined in its contact section by a suitable crimping tool to provide the desired non-circular cross section of the contact section.

Das erste Verbindungsteil kann einen Anschlusskontakt, z.B. einen Gewindebolzen umfassen, den es beispielsweise mit dem voranstehend genannten Rundkabel zu verbinden gilt.The first connection part may have a connection contact, e.g. comprise a threaded bolt, which it is for example to connect with the above-mentioned round cable.

Nachfolgend wird die Erfindung anhand einer vorteilhaften Ausführungsform unter Bezugnahme auf die Zeichnung rein beispielhaft beschrieben. Es zeigen:

Fig. 1
eine erfindungsgemäße elektrische Verbindung mit zwei ersten Verbindungsteilen und zwei zweiten Verbindungsteilen in einem Vormontagezustand;
Fig. 2
die elektrische Verbindung von Fig. 1 im zusammengesteckten Zustand;
Fig. 3
die elektrische Verbindung von Fig. 1 im zusammengesteckten Zustand und in einer Einhausung untergebracht;
Fig. 4a und b
Schnittansichten eines ersten und zweiten Verbindungsteils der elektrischen Verbindung von Fig. 1 in einem teilweise zusammengesteckten Zustand; und
Fig. 5
eine Simulation der Verformung des ersten Verbindungsteils durch das eingesteckte zweite Verbindungsteil in der Kontaktregion der elektrischen Verbindung von Fig. 1 im zusammengesteckten Zustand.
Hereinafter, the invention will be described by way of example with reference to an advantageous embodiment with reference to the drawing. Show it:
Fig. 1
an electrical connection according to the invention with two first connecting parts and two second connecting parts in a pre-assembly state;
Fig. 2
the electrical connection of Fig. 1 in the assembled state;
Fig. 3
the electrical connection of Fig. 1 in the assembled state and housed in an enclosure;
Fig. 4a and b
Sectional views of a first and second connection part of the electrical connection of Fig. 1 in a partially mated condition; and
Fig. 5
a simulation of the deformation of the first connection part by the inserted second connection part in the contact region of the electrical connection of Fig. 1 in the assembled state.

Fig. 1 zeigt eine elektrische Verbindung in einem Vormontagezustand. Die elektrische Verbindung umfasst zwei erste Verbindungsteile 10 und zwei zweite Verbindungsteile 12, die mit den ersten Verbindungsteilen 10 zu verbinden sind. Fig. 1 shows an electrical connection in a pre-assembly state. The electrical connection comprises two first connecting parts 10 and two second connecting parts 12, which are to be connected to the first connecting parts 10.

Bei den zweiten Verbindungsteilen 12 handelt es sich um Rundleiter, beispielsweise Runddrähte mit einer Stärke im Bereich von einigen Millimetern. Die zweiten Verbindungsteile 12 werden durch ein Trägerteil 14, bei dem es sich beispielsweise um ein ein Kunststoffmaterial aufweisendes Spritzgussteil handeln kann, zusammengehalten. Im Bereich ihrer zur Verbindung mit den ersten Verbindungsteilen 10 vorgesehenen freien Enden 16 weisen die zweiten Verbindungsteile 12 jeweils einen Kontaktabschnitt 18 auf, der nachfolgend näher beschrieben wird.The second connecting parts 12 are round conductors, for example round wires with a thickness in the range of a few millimeters. The second connecting parts 12 are held together by a carrier part 14, which may be, for example, an injection-molded part having a plastic material. In the area of their free ends 16 provided for connection to the first connecting parts 10, the second connecting parts 12 each have a contact section 18, which will be described in more detail below.

Bei den ersten Verbindungsteilen 10 handelt es sich um Gewindebolzen, die aus einem elektrisch leitfähigen Material gebildet sind, z.B. Stahl, und die jeweils einen Aufnahmeraum 20 (Fig. 4) zur Aufnahme jeweils eines zweiten Verbindungsteils 12 aufweisen.The first connecting parts 10 are threaded bolts which are formed from an electrically conductive material, eg steel, and which each have a receiving space 20 (FIG. Fig. 4 ) for receiving in each case a second connecting part 12.

Zur Montage der elektrischen Verbindung werden die ersten Verbindungsteile 10 auf die freien Enden 16 der zweiten Verbindungsteile 12 aufgesteckt, wie es in Fig. 2 dargestellt ist. Anschließend werden die zusammengesteckten ersten und zweiten Verbindungsteile 10, 12 in eine Einhausung 22 eingesetzt, bei der es sich beispielsweise um ein ein Kunststoffmaterial aufweisendes Spritzgussteil handeln kann (Fig. 3).For mounting the electrical connection, the first connecting parts 10 are attached to the free ends 16 of the second connecting parts 12, as in Fig. 2 is shown. Subsequently, the mated first and second connecting parts 10, 12 are inserted into a housing 22, which may be, for example, a plastic material having an injection molded part ( Fig. 3 ).

Die in die ersten Verbindungsteile 10 eingesteckten zweiten Verbindungsteile 12 sind mittels Presspassung in diesen gehalten.The second connecting parts 12 inserted in the first connecting parts 10 are held in them by means of a press fit.

Wie Fig. 4 zu entnehmen ist, weist der zur Aufnahme des entsprechenden zweiten Verbindungsteils 12 vorgesehene Aufnahmeraum 20 jedes ersten Verbindungsteils 10 einen im Wesentlichen kreisförmigen Querschnitt auf.As Fig. 4 can be seen, the receiving space 20 provided for receiving the respective second connecting part 12 of each first connecting part 10 has a substantially circular cross-section.

Im Gegensatz dazu besitzt der Kontaktabschnitt 18 des zweiten Verbindungsteils 12 einen unrunden Querschnitt, im dargestellten Ausführungsbeispiel einen im Wesentlichen nicht rechtwinkligen rautenförmigen Querschnitt (Fig. 4b). Alternativ kann der Querschnitt des Kontaktabschnitts 18 auch oval oder elliptisch ausgebildet sein. Der unrunde Querschnitt des Kontaktabschnitts 18 kann beispielsweise durch einfaches Quetschen des ursprünglich runden Kabels oder Drahtes mit Hilfe eines geeigneten Quetschwerkzeugs hergestellt werden.In contrast, the contact portion 18 of the second connecting part 12 has a non-circular cross-section, in the illustrated embodiment has a substantially non-rectangular diamond-shaped cross section ( Fig. 4b ). Alternatively, the cross section of the contact section 18 may also be oval or elliptical. The non-circular cross-section of the contact portion 18 can be made for example by simply squeezing the originally round cable or wire by means of a suitable crimping tool.

Der Kontaktabschnitt 18 des zweiten Verbindungsteils 12 besitzt in zumindest einer Richtung, im vorliegenden Ausführungsbeispiel in Richtung der Hauptachse der Raute, ein Übermaß gegenüber dem Aufnahmeraum 20 des ersten Verbindungsteils 10, d.h. die maximale Ausdehnung des Kontaktabschnitts 18 in radialer Richtung ist größer als der Radius des Aufnahmeraums 20.The contact section 18 of the second connecting part 12 has an oversize in relation to the receiving space 20 of the first connecting part 10 in at least one direction, in the present embodiment in the direction of the main axis of the rhombus. the maximum extent of the contact section 18 in the radial direction is greater than the radius of the receiving space 20.

Durch das Übermaß des Kontaktabschnitts 18 führt das Einstecken des zweiten Verbindungsteils 12 in den Aufnahmeraum 20 des ersten Verbindungsteils 10 zu einer Verformung der den Aufnahmeraum 20 begrenzenden Wand 24 des ersten Verbindungsteils 10. Das Übermaß des Kontaktabschnitts 18 ist dabei so groß gewählt, dass eine ausreichend feste Presspassung des zweiten Verbindungsteils 12 in dem ersten Verbindungsteil 10 erreicht wird, und gleichzeitig aber so klein, dass die Verformung der Wand 24 des ersten Verbindungsteils 10 im Wesentlichen ausschließlich elastischer Natur ist.Due to the excess of the contact portion 18, the insertion of the second connecting part 12 into the receiving space 20 of the first connecting part 10 leads to a deformation of the receiving space 20 bounding wall 24 of the first connecting part 10. The excess of the contact portion 18 is chosen so large that a sufficient firm compression fit of the second connecting part 12 is achieved in the first connecting part 10, but at the same time so small that the deformation of the wall 24 of the first connecting part 10 is substantially exclusively elastic nature.

Ein geeignetes Übermaß des Kontaktabschnitts 18 liegt beispielsweise in der Größenordnung von hundertstel Millimetern, z.B. im Bereich von 10 bis 20 hundertstel Millimetern. Besitzt das als Runddraht ausgebildete zweite Verbindungsteil 12 beispielsweise einen Durchmesser von 2,5 mm und der Aufnahmeraum 20 des ersten Verbindungsteils 10 einen Durchmesser von 2,55 mm, so lässt sich der Kontaktabschnitt 18 des zweiten Verbindungsteils 12 durch z.B. Quetschung in einer Richtung soweit verbreitern, dass sein maximaler Durchmesser beispielsweise etwa 2,7 mm beträgt und somit um etwa 0,15 mm größer als der Durchmesser des Aufnahmeraums 20 ist.A suitable excess of contact portion 18 is, for example, on the order of one hundredth of a millimeter, e.g. in the range of 10 to 20 hundredths of a millimeter. For example, if the second connecting part 12 designed as a round wire has a diameter of 2.5 mm and the receiving space 20 of the first connecting part 10 has a diameter of 2.55 mm, then the contact section 18 of the second connecting part 12 can be replaced by e.g. Increase pinch in one direction so far that its maximum diameter, for example, is about 2.7 mm and thus by about 0.15 mm larger than the diameter of the receiving space 20.

Die hieraus resultierende Verformung der den Aufnahmeraum 20 begrenzenden Wand 24 des ersten Verbindungsteils 10 ist so minimal, dass es sich hierbei um eine zumindest annähernd ausschließlich elastische Verformung handelt, welche aufgrund ihrer elastischen Natur nicht nur unter Vibrationen, sondern auch unter extremen Temperaturen oder Temperatursprüngen sowie unter erhöhter Feuchtigkeit für eine dauerhaft zuverlässige mechanische und elektrische Verbindung zwischen dem ersten und zweiten Verbindungsteil 10, 12 sorgt.The resulting deformation of the receiving space 20 bounding wall 24 of the first connection part 10 is so minimal that it This is an at least approximately exclusively elastic deformation, which due to their elastic nature not only under vibrations, but also under extreme temperatures or temperature jumps and under increased humidity for a permanently reliable mechanical and electrical connection between the first and second connecting part 10, 12 provides ,

Die den Aufnahmeraum 20 begrenzende Wand 24 des ersten Verbindungsteils 10 weist im dargestellten Ausführungsbeispiel über zumindest die gesamte axiale Länge des Aufnahmeraums 20 eine im Wesentlichen konstante Wandstärke auf. Alternativ ist es möglich, die Wandstärke 24 geringer zu wählen und aus Stabilitätsgründen im Bereich des zum zweiten Verbindungsteil 12 weisenden Randes der Wand 24 einen umlaufenden Wulst 26 vorzusehen (in Fig. 4a gestrichelt dargestellt).The receiving space 20 bounding wall 24 of the first connecting part 10 has in the illustrated embodiment over at least the entire axial length of the receiving space 20 has a substantially constant wall thickness. Alternatively, it is possible to choose the wall thickness 24 smaller and for reasons of stability in the region of the second connection part 12 facing edge of the wall 24 to provide a circumferential bead 26 (in Fig. 4a shown in dashed lines).

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
erstes Verbindungsteilfirst connection part
1212
zweites Verbindungsteilsecond connecting part
1414
Trägerteilsupport part
1616
EndeThe End
1818
KontaktabschnittContact section
2020
Aufnahmeraumaccommodation space
2222
Einhausunghousing
2424
Wandwall
2626
Wulstbead

Claims (6)

  1. Electrical connection having a first connecting part (10) and a second connecting part (12) insertable into the first connecting part (10), the first connecting part (10) comprising a receiving space (20) for receiving the second connecting part (12),
    wherein at least one contact section (18) of the second connecting part (12) has an oversize relative to the receiving space (20) such that the second connecting part (12) inserted into the first connecting part (10) is press-fitted in the first connecting part (10) and the second connecting part (12) causes an elastic deformation of the first connecting part (10),
    wherein the receiving space (20) has a substantially circular cross-section in a contact region, and
    the contact section (18) of the second connecting part (12) has a non-circular cross-section, the maximum diameter of which is a little larger than the diameter of the receiving space (20) in the contact region,
    characterized in that
    the contact section (18) of the second connecting part (12) has a substantially oval, elliptical or non-rectangular rhombic cross-section at least in some areas.
  2. Electrical connection according to claim 1,
    characterized in that
    the contact section (18) of the second connecting part (12) inserted in the first connecting part (10) is in contact with the first connecting part (10) in at least two contact areas spaced apart from one another and in particular facing one another.
  3. Electrical connection according to one of the preceding claims, characterized in that
    the amount of the oversize of the contact section (18) of the second connecting part (12) relative to the receiving space (20) of the first connecting part (10) is in the order of 10-2 mm to 10-1 mm.
  4. Electrical connection according to one of the preceding claims, characterized in that
    the contact section (18) of the second connecting part (12) is produced by a crimping process.
  5. Electrical connection according to one of the preceding claims, characterized in that
    the first connecting part (10) includes a connecting contact, e.g. a threaded bolt.
  6. Electrical connection according to one of the preceding claims, characterized in that
    the second connecting part (12) includes an electrical line, e.g. a cable with round cross-section.
EP09000443.3A 2009-01-14 2009-01-14 Electric connection Not-in-force EP2209166B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09000443.3A EP2209166B1 (en) 2009-01-14 2009-01-14 Electric connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09000443.3A EP2209166B1 (en) 2009-01-14 2009-01-14 Electric connection

Publications (2)

Publication Number Publication Date
EP2209166A1 EP2209166A1 (en) 2010-07-21
EP2209166B1 true EP2209166B1 (en) 2017-09-27

Family

ID=40749208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09000443.3A Not-in-force EP2209166B1 (en) 2009-01-14 2009-01-14 Electric connection

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Country Link
EP (1) EP2209166B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5106328A (en) * 1990-08-01 1992-04-21 Otto Dunkel Gmbh Fabrik Fur Elektrotechnische Gerate Contact pin and bushing assembly
GB2371419A (en) * 2001-01-19 2002-07-24 Nec Corp Elastic ground connecting member for substrate or circuit board
EP1341267A2 (en) * 2002-02-28 2003-09-03 QA Technology Company, Inc. Hyperboloid electrical contact
US7083431B1 (en) * 2005-09-02 2006-08-01 Lear Corporation Method and system of electrically connecting multiple printed circuit boards

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4432596A1 (en) * 1993-09-16 1995-03-23 Whitaker Corp Modular electrical contact arrangement
DE29910867U1 (en) * 1999-06-28 1999-09-30 Stocko Contact Gmbh & Co Kg Electrical cable connector with short-circuit bridging
DE102004041169B3 (en) * 2004-08-25 2006-06-14 Siemens Ag Earthing system for linking an earth connection on an electric circuit carrier (ECC) to an earth conductor (EC) has a connection structure to make an electric connection between the ECC and the EC
DE102006019895A1 (en) * 2006-04-28 2007-11-15 Siemens Ag Power measuring device for use as battery sensor for measuring e.g. battery power, of vehicle, has connecting unit for connecting contact unit with connector of board, where press fit is provided between connecting unit and hole

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5106328A (en) * 1990-08-01 1992-04-21 Otto Dunkel Gmbh Fabrik Fur Elektrotechnische Gerate Contact pin and bushing assembly
GB2371419A (en) * 2001-01-19 2002-07-24 Nec Corp Elastic ground connecting member for substrate or circuit board
EP1341267A2 (en) * 2002-02-28 2003-09-03 QA Technology Company, Inc. Hyperboloid electrical contact
US7083431B1 (en) * 2005-09-02 2006-08-01 Lear Corporation Method and system of electrically connecting multiple printed circuit boards

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