EP2875550B1 - Electric contact device for contacting an electric conductor - Google Patents

Electric contact device for contacting an electric conductor Download PDF

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Publication number
EP2875550B1
EP2875550B1 EP13735020.3A EP13735020A EP2875550B1 EP 2875550 B1 EP2875550 B1 EP 2875550B1 EP 13735020 A EP13735020 A EP 13735020A EP 2875550 B1 EP2875550 B1 EP 2875550B1
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EP
European Patent Office
Prior art keywords
contact
electrical
conductor
contact region
region
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EP13735020.3A
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German (de)
French (fr)
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EP2875550A1 (en
Inventor
Karlo Stjepanovic
Constantin Classen
Jürgen Ziemke
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Weidmueller Interface GmbH and Co KG
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Weidmueller Interface GmbH and Co KG
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Publication of EP2875550A1 publication Critical patent/EP2875550A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end

Definitions

  • the following invention relates to an electrical contact device according to the preamble of claim 1.
  • the prior art according to the preamble of claim 1 is the DE 20 2011 100357 A1 called. Similar reveal the WO 2008/095453 A1 and the EP 2 280 453 A1 as well as the DE AS 1 136 393 , The technological background is also the DE 26 24 397 A1 called.
  • the object of the invention is to provide an electrical contact device, in particular for electrical connection devices, in which the electrical contact, in particular under vibration conditions, ensures different rigid and flexible conductors.
  • the electrical contact device is a stamped and bent component and a component of a terminal, with which an electrical conductor is contacted.
  • An electrical contact device is a contact part or a contact assembly, which is provided for guiding an electric current, and with which an electrical contact is made to an electrical conductor.
  • Such an electrical conductor preferably has a, in particular electrically insulating, sheath and an electrically conductive wire.
  • conductive conductors are both full conductors with a single, in particular rigid, core and stranded conductor with a plurality of, in particular bendable, cores.
  • the electrical contact device is characterized in that the contact zone has a first contact region and a second contact region, wherein the both contact areas have different roughness.
  • the conductor preferably contacts the contact zone / surface in at least one of the two contact regions in an electrically conductive manner.
  • the electrical contact device according to the invention is therefore suitable for variously rigid or flexible electrical conductors (single-core or multi-core)
  • the roughness is formed by contact geometries or contours, wherein the second contact geometry or contour of the second contact region has an elevation which is greater than the elevation of the first contact geometry or contour of the first contact region.
  • the contact geometries are preferably designed so that they ensure a good contact, but not injured the surface of the conductor.
  • the contact geometries lead to a bending of the conductor in a pressing of the conductor to the contact zone.
  • the second contact geometry with a larger elevation is suitable for conductors of greater rigidity, the first contact geometry with a lower elevation for conductors of greater flexibility.
  • As contact geometries or contours are particularly advantageous edges, but also other geometries such as curves, tips or hooks, as long as they avoid injury to the ladder.
  • the second contact region then has an extension over the contact zone which is smaller than the extent of the first contact region. It is particularly preferred that the second contact region has only a few or a single contact geometry.
  • the second contact region is therefore preferably designed such that it ensures the electrically conductive contact with comparatively rigid conductors.
  • the second contact area is thus particularly suitable for contacting full conductors.
  • first contact region it is preferable for a multiplicity of first contact geometries to be provided in the first contact region. Since the contact geometry of the first contact region has a smaller elevation, the conductor bends around or along the many first contact geometries.
  • the first contact region is therefore preferably designed such that it ensures the electrically conductive contact with comparatively flexible conductors. In terms of the type of electrical conductor is suitable The first contact area thus especially for contacting flexible single conductors or stranded conductors.
  • the second contact region preferably has a second contact geometry, which has a contact flank rising in a feed direction of the electrical conductor, in particular a flattening contact flank.
  • the electrical contact device preferably has a feed side and a second side opposite the feed side, wherein it has a feed edge rising in the feed direction on its feed side.
  • the feed edge also facilitates feeding the conductor.
  • the first contact region is arranged in the feed direction behind the second contact region, so that a conductor always bends around the second contact geometry.
  • an electrical connection device in particular with a terminal block, a plug and / or a socket, comprises such an electrical contact device. It is preferred that the electrical connection device comprises a force means which serves for pressing an electrical conductor arranged in the connection device against the contact surface.
  • the force means is a spring in a preferred embodiment.
  • a spring is preferably made as a bent or stamped bent part of a spring steel.
  • any desired springs for example spiral springs or leaf springs, are suitable.
  • other force means may be suitable, for example, elastically and / or plastically formed moldings, preferably of a metal.
  • the force means is preferably arranged at the level of the first contact area. As a result, it presses the conductor in the direction of the first contact area. With the second contact region arranged in the feed direction in front of the first contact region, this design ensures that a relatively rigid conductor is pressed at least against the second contact geometry, while a relatively flexible conductor is thereby pressed at least against the first contact region.
  • the electrical connection device is a spring-loaded terminal, particularly preferably a push-in plug (direct plug-in technology plug).
  • the conductor itself opens the nip during insertion, either a full conductor or a stranded conductor.
  • an actuator for opening the nip can also be provided here.
  • the electrical contact device 1 of Fig. 1 has a feed side 11 and a feed side 11 opposite second side 12 and extends between these two sides 11, 12 along a plane yz, which is spanned by two transverse lines y, z. In principle, however, an electrical contact device 1 can also be curved.
  • the electrical contact device 1 has a contact zone or surface 2 which comprises a first contact region 21 and a second contact region 22.
  • the first contact region 21 is arranged behind the second contact region 22 when viewed in a feed direction 5 of a conductor 3.
  • first contact region 21 a multiplicity of first contact geometries 211 are provided which extend over a first extension y1 of the contact zone 2. In cross-section, the first contact region 21 is therefore formed with multiple points. In principle, the first contact geometries 211 of the first contact region 21 can have any desired steeply rising and falling flanks 212 in the feed direction 5.
  • a single second contact geometry 221 is provided, which extends over a second extension y2 of the contact zone / surface 2.
  • the second contact region 22 has exactly one point. It is preferred that the second contact geometry 221 of the second contact region 22 flattens in the feeding direction 5, in order to supply a conductor 3 (s. Fig. 2 ) to facilitate.
  • the second contact geometry 221 of the second contact region 22 also has a very steeply sloping edge 223 in the feed direction 5 in order to allow a bending of a rigid conductor 3.
  • the electrical contact device 1 In order to facilitate the feeding of a conductor 3, the electrical contact device 1 also has a feed edge 111 at the feed end 11.
  • first contact geometries 211 have a smaller elevation x1 than the elevation x2 of the second contact geometry 221.
  • Fig. 2 shows the insertion of a conductor 3 in an electrical connection device 10, which comprises a contact device 1 according to the invention.
  • the conductor 3 is an electrical conductor. Shown here is a full conductor without an insulating sheath 32 (s. Fig. 2c ), so that here the core 31 of the electrical conductor 3 is visible.
  • the electrical connection device 10 As electrical connection device 10, a spring-loaded terminal is shown here by way of example.
  • the electrical connection device 10 has a spring 4 as a force.
  • electrically conductive components are shown, namely a side wall 1012, on which the spring 4 is fixed, and a bottom wall 1011, on which the side wall 1012 is fixed.
  • the electrical contact device 1 is also an electrically conductive component of the electrical connection device 10 and forms a fixed to the bottom wall 1011 side wall 1012th
  • the spring 4 has an open end 41 and is designed such that its open end 41 is arranged at the level of the first contact region 21 of the contact zone 2.
  • the Fig. 2 (b) shows the inserted into the electrical connection device 10 full conductor. 3
  • Fig. 2 (c) shows a introduced into the electrical connection device 10 stranded conductor as an electrical conductor 3.
  • the stranded conductor 3 has an electrically insulating sheath 32 and a plurality of flexible cores or strands 31st
  • Fig. 3 is shown as an electrical connection device 10, a spring terminal, namely a push-in connector.
  • a preferably metallic housing 101 (clamping cage) is shown, which is recessed in the region of the electrical contact device 1, so that it is visible.

Description

Die folgende Erfindung betrifft eine elektrische Kontakteinrichtung nach dem Oberbegriff des Anspruchs 1.The following invention relates to an electrical contact device according to the preamble of claim 1.

Zum Stand der Technik nach dem Oberbegriff des Anspruchs 1 wird die DE 20 2011 100357 A1 genannt. Analoges offenbaren die WO 2008/095453 A1 und die EP 2 280 453 A1 sowie die DE AS 1 136 393 . Zum technologischen Hintergrund wird ferner die DE 26 24 397 A1 genannt.The prior art according to the preamble of claim 1 is the DE 20 2011 100357 A1 called. Similar reveal the WO 2008/095453 A1 and the EP 2 280 453 A1 as well as the DE AS 1 136 393 , The technological background is also the DE 26 24 397 A1 called.

In vibrationsbelasteter Umgebung, wie sie beispielsweise in der industriellen Fertigung oder in Kraftfahrzeugen aufzufinden ist, ist es von besonderer Wichtigkeit, dass der elektrische Kontakt zwischen elektrischen Anschlussmitteln wie beispielsweise elektrischen Leitern, Steckern und/oder Buchsen dauerhaft sichergestellt ist.In vibration-loaded environment, as can be found, for example, in industrial production or in motor vehicles, it is of particular importance that the electrical contact between electrical connection means such as electrical conductors, plugs and / or sockets is permanently ensured.

Aufgabe der Erfindung ist es, eine elektrische Kontakteinrichtung, insbesondere für elektrische Anschlussvorrichtungen, zu schaffen, bei welcher der elektrische Kontakt, insbesondere unter Vibrationsbedingungen, zu verschieden starren und flexiblen Leitern sichergestellt ist.The object of the invention is to provide an electrical contact device, in particular for electrical connection devices, in which the electrical contact, in particular under vibration conditions, ensures different rigid and flexible conductors.

Die Aufgabe wird durch den Gegenstand des Anspruchs 1 gelöst.The object is solved by the subject matter of claim 1.

Durch diese Maßnahme werden mehrere Kontaktpunkte erzeugt, was die Kontaktsicherheit erhöht. In einer bevorzugten Ausführungsform ist die elektrische Kontakteinrichtung ein Stanzbiegebauteil und Bestandteil einer Klemme, mit der ein elektrischer Leiter kontaktiert wird.By this measure, multiple contact points are generated, which increases the contact reliability. In a preferred embodiment, the electrical contact device is a stamped and bent component and a component of a terminal, with which an electrical conductor is contacted.

Eine elektrische Kontakteinrichtung im Sinne der Erfindung ist ein Kontaktteil oder eine Kontaktbaugruppe, welche zum Führen eines elektrischen Stromes vorgesehen ist, und mit der ein elektrischer Kontakt zu einem elektrischen Leiter hergestellt wird.An electrical contact device according to the invention is a contact part or a contact assembly, which is provided for guiding an electric current, and with which an electrical contact is made to an electrical conductor.

Ein solcher elektrische Leiter weist bevorzugt eine, insbesondere elektrisch isolierende, Ummantelung sowie eine elektrisch leitende Ader auf. Als leitende Ader eignen sich vorliegend sowohl Vollleiter mit einer einzigen, insbesondere starren, Ader als auch Litzenleiter mit mehreren, insbesondere biegbaren, Adern.Such an electrical conductor preferably has a, in particular electrically insulating, sheath and an electrically conductive wire. In the present case, conductive conductors are both full conductors with a single, in particular rigid, core and stranded conductor with a plurality of, in particular bendable, cores.

Die elektrische Kontakteinrichtung ist dadurch gekennzeichnet, dass die Kontaktzone einen ersten Kontaktbereich und einen zweiten Kontaktbereich aufweist, wobei die beiden Kontaktbereiche verschiedene Rauigkeiten aufweisen. In Abhängigkeit von der Starrheit beziehungsweise der Biegbarkeit des Leiters kontaktiert der Leiter die Kontaktzone/-fläche bevorzugt zumindest in einem der beiden Kontaktbereiche elektrisch leitend. Die erfindungsgemäße elektrische Kontakteinrichtung eignet sich daher für verschieden starre beziehungsweise biegsame elektrische Leiter (einadrig oder mehradrig)The electrical contact device is characterized in that the contact zone has a first contact region and a second contact region, wherein the both contact areas have different roughness. Depending on the rigidity or bendability of the conductor, the conductor preferably contacts the contact zone / surface in at least one of the two contact regions in an electrically conductive manner. The electrical contact device according to the invention is therefore suitable for variously rigid or flexible electrical conductors (single-core or multi-core)

Dabei ist die Rauigkeit durch Kontaktgeometrien bzw. -konturen gebildet, wobei die zweite Kontaktgeometrie bzw. - kontur des zweiten Kontaktbereiches eine Erhebung aufweist, die gegenüber der Erhebung der ersten Kontaktgeometrie bzw. -kontur des ersten Kontaktbereiches größer ist.In this case, the roughness is formed by contact geometries or contours, wherein the second contact geometry or contour of the second contact region has an elevation which is greater than the elevation of the first contact geometry or contour of the first contact region.

Die Kontaktgeometrien sind bevorzugt so ausgebildet, dass sie zwar einen guten Kontakt sichern, die Oberfläche des Leiters aber nicht verletzten. Die Kontaktgeometrien führen bei einem Andrücken des Leiters an die Kontaktzone zu einem Verbiegen des Leiters. Die zweite Kontaktgeometrie mit größerer Erhebung eignet sich für Leiter größerer Starrheit, die erste Kontaktgeometrie mit geringerer Erhebung für Leiter größerer Biegsamkeit. Als Kontaktgeometrien bzw. -konturen eignen sich insbesondere vorteilhaft Kanten, aber auch andere Geometrien wie Rundungen, Spitzen oder Haken, solange sie eine Verletzung der Leiter vermeiden.The contact geometries are preferably designed so that they ensure a good contact, but not injured the surface of the conductor. The contact geometries lead to a bending of the conductor in a pressing of the conductor to the contact zone. The second contact geometry with a larger elevation is suitable for conductors of greater rigidity, the first contact geometry with a lower elevation for conductors of greater flexibility. As contact geometries or contours are particularly advantageous edges, but also other geometries such as curves, tips or hooks, as long as they avoid injury to the ladder.

Erfindungsgemäß weist sodann der zweite Kontaktbereich eine Ausdehnung über die Kontaktzone auf, die gegenüber der Ausdehnung des ersten Kontaktbereiches kleiner ist. Dabei ist es besonders bevorzugt, dass der zweite Kontaktbereich nur einige wenige oder eine einzige Kontaktgeometrie aufweist.According to the invention, the second contact region then has an extension over the contact zone which is smaller than the extent of the first contact region. It is particularly preferred that the second contact region has only a few or a single contact geometry.

Da die Kontaktgeometrie des zweiten Kontaktbereiches eine größere Erhebung aufweist, biegt sich der Leiter um die eine oder mehreren zweiten Kontaktgeometrien. Der zweite Kontaktbereich ist daher bevorzugt so ausgebildet, dass er den elektrisch leitenden Kontakt zu vergleichsweise starren Leitern gewährleistet. Der zweite Kontaktbereich eignet sich somit besonders zum Kontaktieren von Vollleitern.Since the contact geometry of the second contact region has a larger elevation, the conductor bends around the one or more second contact geometries. The second contact region is therefore preferably designed such that it ensures the electrically conductive contact with comparatively rigid conductors. The second contact area is thus particularly suitable for contacting full conductors.

Weiterhin ist es bevorzugt, dass im ersten Kontaktbereich eine Vielzahl erster Kontaktgeometrien vorgesehen ist. Da die Kontaktgeometrie des ersten Kontaktbereiches eine kleinere Erhebung aufweist, biegt sich der Leiter um beziehungsweise entlang der vielen ersten Kontaktgeometrien. Der erste Kontaktbereich ist daher bevorzugt so ausgebildet, dass er den elektrisch leitenden Kontakt zu vergleichsweise biegsamen Leitern gewährleistet. In Hinsicht auf die Art der elektrischen Leiter eignet sich der erste Kontaktbereich somit besonders zum Kontaktieren von biegsamen Einzelleitern oder Litzenleitern.Furthermore, it is preferable for a multiplicity of first contact geometries to be provided in the first contact region. Since the contact geometry of the first contact region has a smaller elevation, the conductor bends around or along the many first contact geometries. The first contact region is therefore preferably designed such that it ensures the electrically conductive contact with comparatively flexible conductors. In terms of the type of electrical conductor is suitable The first contact area thus especially for contacting flexible single conductors or stranded conductors.

Um das Zuführen eines elektrischen Leiters in die elektrische Kontakteinrichtung zu erleichtern, weist der zweite Kontaktbereich bevorzugt eine zweite Kontaktgeometrie auf, die eine in eine Zuführrichtung des elektrischen Leiters steigende Kontaktflanke, insbesondere eine flach ansteigende Kontaktflanke, aufweist.In order to facilitate the feeding of an electrical conductor into the electrical contact device, the second contact region preferably has a second contact geometry, which has a contact flank rising in a feed direction of the electrical conductor, in particular a flattening contact flank.

Zudem weist die elektrische Kontakteinrichtung bevorzugt eine Zuführseite und eine der Zuführseite gegenüberliegende zweite Seite auf, wobei sie an seiner Zuführseite eine in Zuführrichtung steigende Zuführflanke aufweist. Die Zuführflanke erleichtert ebenfalls das Zuführen des Leiters.In addition, the electrical contact device preferably has a feed side and a second side opposite the feed side, wherein it has a feed edge rising in the feed direction on its feed side. The feed edge also facilitates feeding the conductor.

Dabei ist der erste Kontaktbereich in Zuführrichtung hinter dem zweiten Kontaktbereich angeordnet, so dass sich ein Leiter immer um die zweite Kontaktgeometrie biegt.In this case, the first contact region is arranged in the feed direction behind the second contact region, so that a conductor always bends around the second contact geometry.

In einer bevorzugten Ausführungsform umfasst eine elektrische Anschlussvorrichtung, insbesondere mit einer Reihenklemme, einem Stecker und/oder einer Buchse, eine solche elektrische Kontakteinrichtung. Es ist bevorzugt, dass die elektrische Anschlussvorrichtung ein Kraftmittel umfasst, das zum Andrücken eines in der Anschlussvorrichtung angeordneten elektrischen Leiters gegen die Kontaktfläche dient.In a preferred embodiment, an electrical connection device, in particular with a terminal block, a plug and / or a socket, comprises such an electrical contact device. It is preferred that the electrical connection device comprises a force means which serves for pressing an electrical conductor arranged in the connection device against the contact surface.

Das Kraftmittel ist in einer bevorzugten Ausführungsform eine Feder. Eine solche Feder ist bevorzugt als Biege- oder Stanzbiegeteil aus einem Federstahl hergestellt. Prinzipiell eignen sich in Abhängigkeit von der Ausbildung und Verwendung der elektrischen Anschlussvorrichtung beliebig ausgebildete Federn, beispielsweise Spiralfedern oder Blattfedern. Es ist aber bevorzugt, eine Blattfeder zu verwenden. Grundsätzlich können auch andere Kraftmittel geeignet sein, beispielsweise elastisch und/oder plastisch ausgebildete Formteile, vorzugsweise aus einem Metall.The force means is a spring in a preferred embodiment. Such a spring is preferably made as a bent or stamped bent part of a spring steel. In principle, depending on the design and use of the electrical connection device, any desired springs, for example spiral springs or leaf springs, are suitable. However, it is preferable to use a leaf spring. In principle, other force means may be suitable, for example, elastically and / or plastically formed moldings, preferably of a metal.

Das Kraftmittel ist bevorzugt auf Höhe des ersten Kontaktbereiches angeordnet. Dadurch drückt es den Leiter in Richtung des ersten Kontaktbereiches. Bei in Zuführrichtung vor dem ersten Kontaktbereich angeordnetem zweitem Kontaktbereich stellt diese Ausbildung sicher, dass ein verhältnismäßig starrer Leiter zumindest gegen die zweite Kontaktgeometrie gedrückt wird, während ein verhältnismäßig biegsamer Leiter dadurch zumindest gegen den ersten Kontaktbereich gedrückt wird.The force means is preferably arranged at the level of the first contact area. As a result, it presses the conductor in the direction of the first contact area. With the second contact region arranged in the feed direction in front of the first contact region, this design ensures that a relatively rigid conductor is pressed at least against the second contact geometry, while a relatively flexible conductor is thereby pressed at least against the first contact region.

In einer bevorzugten Ausführungsform ist die elektrische Anschlussvorrichtung eine Federkraftklemme, besonders bevorzugt ein Push In- Stecker (Direktsteck-Technik-Stecker). In dieser Ausführungsform öffnet vorzugsweise der Leiter selbst die Klemmstelle beim Einführen, und zwar entweder ein Vollleiter oder ein Litzenleiter. Optional kann auch hier ein Betätiger zum Öffnen der Klemmstelle vorgesehen sein.In a preferred embodiment, the electrical connection device is a spring-loaded terminal, particularly preferably a push-in plug (direct plug-in technology plug). In this embodiment, preferably, the conductor itself opens the nip during insertion, either a full conductor or a stranded conductor. Optionally, an actuator for opening the nip can also be provided here.

Nachfolgend wird die Erfindung unter Bezug auf die Zeichnungen anhand von Ausführungsbeispielen näher erläutert, wobei weitere Vorteile der Erfindung deutlich werden. Es zeigt:

Fig. 1
eine erfindungsgemäße elektrische Kontakteinrichtung im Querschnitt;
Fig. 2
in (a) das Zuführen eines elektrischen Leiters in eine elektrische Anschlussvorrichtung mit der elektrischen Kontakteinrichtung der Fig. 1, und in (b) - (e) jeweils die elektrische Anschlussvorrichtung oder einen Ausschnitt aus der elektrischen Anschlussvorrichtung mit eingeführtem elektrischem Leiter; und
Fig. 3
eine elektrische Anschlussvorrichtung mit der elektrischen Kontakteinrichtung und ohne elektrischen Leiter.
The invention will be explained in more detail below with reference to the drawings with reference to embodiments, wherein further advantages of the invention will become apparent. It shows:
Fig. 1
an electrical contact device according to the invention in cross section;
Fig. 2
in (a) the feeding of an electrical conductor into an electrical connection device with the electrical contact device of Fig. 1 , and in (b) - (e) respectively the electrical connection device or a section of the electrical connection device with inserted electrical conductor; and
Fig. 3
an electrical connection device with the electrical contact device and without electrical conductor.

Die elektrische Kontakteinrichtung 1 der Fig. 1 weist eine Zuführseite 11 und eine der Zuführseite 11 gegenüberliegende zweite Seite 12 auf und erstreckt sich zwischen diesen beiden Seiten 11, 12 entlang einer Ebene yz, die durch zwei quer zueinander stehende Linien y, z aufgespannt ist. Prinzipiell kann eine elektrische Kontakteinrichtung 1 aber auch gebogen ausgebildet sein.The electrical contact device 1 of Fig. 1 has a feed side 11 and a feed side 11 opposite second side 12 and extends between these two sides 11, 12 along a plane yz, which is spanned by two transverse lines y, z. In principle, however, an electrical contact device 1 can also be curved.

Weiterhin weist die elektrische Kontakteinrichtung 1 eine Kontaktzone bzw.-fläche 2 auf, die einen ersten Kontaktbereich 21 und einen zweiten Kontaktbereich 22 umfasst. Der erste Kontaktbereich 21 ist in einer Zuführrichtung 5 eines Leiters 3 gesehen hinter dem zweiten Kontaktbereich 22 angeordnet.Furthermore, the electrical contact device 1 has a contact zone or surface 2 which comprises a first contact region 21 and a second contact region 22. The first contact region 21 is arranged behind the second contact region 22 when viewed in a feed direction 5 of a conductor 3.

Im ersten Kontaktbereich 21 ist eine Vielzahl erster Kontaktgeometrien 211 vorgesehen, die sich über eine erste Ausdehnung y1 der Kontaktzone 2 erstrecken. Im Querschnitt ist der erste Kontaktbereich 21 daher mehrzackig ausgebildet. Prinzipiell können die ersten Kontaktgeometrien 211 des ersten Kontaktbereiches 21 dabei in Zuführrichtung 5 beliebig steil ansteigende und abfallende Flanken 212 aufweisen.In the first contact region 21, a multiplicity of first contact geometries 211 are provided which extend over a first extension y1 of the contact zone 2. In cross-section, the first contact region 21 is therefore formed with multiple points. In principle, the first contact geometries 211 of the first contact region 21 can have any desired steeply rising and falling flanks 212 in the feed direction 5.

Im zweiten Kontaktbereich 22 ist eine einzige zweite Kontaktgeometrie 221 vorgesehen, die sich über eine zweite Ausdehnung y2 der Kontaktzone /-fläche 2 erstreckt. Im Querschnitt weist der zweite Kontaktbereich 22 daher genau eine Zacke auf. Es ist bevorzugt, dass die zweite Kontaktgeometrie 221 des zweiten Kontaktbereiches 22 in Zuführrichtung 5 flach ansteigt, um das Zuführen eines Leiters 3 (s. Fig. 2) zu erleichtern. Zudem ist es bevorzugt, dass die zweite Kontaktgeometrie 221 des zweiten Kontaktbereiches 22 zudem eine in Zuführrichtung 5 sehr steil abfallende Flanke 223 aufweist, um ein Biegen eines starren Leiters 3 zu ermöglichen.In the second contact region 22, a single second contact geometry 221 is provided, which extends over a second extension y2 of the contact zone / surface 2. In cross-section, therefore, the second contact region 22 has exactly one point. It is preferred that the second contact geometry 221 of the second contact region 22 flattens in the feeding direction 5, in order to supply a conductor 3 (s. Fig. 2 ) to facilitate. In addition, it is preferred that the second contact geometry 221 of the second contact region 22 also has a very steeply sloping edge 223 in the feed direction 5 in order to allow a bending of a rigid conductor 3.

Um das Zuführen eines Leiters 3 zu erleichtern weist die elektrische Kontakteinrichtung 1 zudem eine Zuführflanke 111 am Zuführende 11 auf.In order to facilitate the feeding of a conductor 3, the electrical contact device 1 also has a feed edge 111 at the feed end 11.

Sichtbar ist, dass die ersten Kontaktgeometrien 211 eine kleinere Erhebung x1 aufweisen, als die Erhebung x2 der zweiten Kontaktgeometrie 221.It can be seen that the first contact geometries 211 have a smaller elevation x1 than the elevation x2 of the second contact geometry 221.

Fig. 2 zeigt das Einführen eines Leiters 3 in eine elektrische Anschlussvorrichtung 10, die eine erfindungsgemäße Kontakteinrichtung 1 umfasst. Der Leiter 3 ist ein elektrischer Leiter. Gezeigt ist hier ein Vollleiter ohne eine isolierende Ummantelung 32 (s. Fig. 2c), so dass hier die Ader 31 des elektrischen Leiters 3 sichtbar ist. Fig. 2 shows the insertion of a conductor 3 in an electrical connection device 10, which comprises a contact device 1 according to the invention. The conductor 3 is an electrical conductor. Shown here is a full conductor without an insulating sheath 32 (s. Fig. 2c ), so that here the core 31 of the electrical conductor 3 is visible.

Als elektrische Anschlussvorrichtung 10 ist hier eine Federkraftklemme beispielhaft gezeigt. Die elektrische Anschlussvorrichtung 10 weist eine Feder 4 als Kraftmittel auf. Von der elektrischen Anschlussvorrichtung 10 sind elektrisch leitende Bestandteile gezeigt, nämlich eine Seitenwand 1012, an der die Feder 4 festgelegt ist, und eine Bodenwand 1011, an der die Seitenwand 1012 festgelegt ist. Die elektrische Kontakteinrichtung 1 ist ebenfalls ein elektrisch leitender Bestandteil der elektrischen Anschlussvorrichtung 10 und bildet eine an die Bodenwand 1011 festgelegte Seitenwand 1012.As electrical connection device 10, a spring-loaded terminal is shown here by way of example. The electrical connection device 10 has a spring 4 as a force. Of the electrical connection device 10, electrically conductive components are shown, namely a side wall 1012, on which the spring 4 is fixed, and a bottom wall 1011, on which the side wall 1012 is fixed. The electrical contact device 1 is also an electrically conductive component of the electrical connection device 10 and forms a fixed to the bottom wall 1011 side wall 1012th

Die Feder 4 weist ein offenes Ende 41 auf und ist so ausgebildet, dass ihr offenes Ende 41 auf Höhe des ersten Kontaktbereiches 21 der Kontaktzone 2 angeordnet ist.The spring 4 has an open end 41 and is designed such that its open end 41 is arranged at the level of the first contact region 21 of the contact zone 2.

Die Fig. 2(b) zeigt den in die elektrische Anschlussvorrichtung 10 eingeführten Vollleiter 3.The Fig. 2 (b) shows the inserted into the electrical connection device 10 full conductor. 3

Sichtbar ist, dass der Vollleiter 3 mittels der Feder 4 gegen die zweite Kontaktgeometrie 221 gedrückt wird. Er liegt zudem nur an seinem der Einführseite 11 abgewandten Ende an dem zweiten Kontaktbereich 22 an.It is visible that the full conductor 3 is pressed by means of the spring 4 against the second contact geometry 221. He is also only at its end facing away from the insertion side 11 at the second contact region 22 at.

Fig. 2(c) zeigt einen in die elektrische Anschlussvorrichtung 10 eingeführten Litzenleiter als elektrischen Leiter 3. Der Litzenleiter 3 weist eine elektrisch isolierende Ummantelung 32 auf und eine Vielzahl biegsamer Adern beziehungsweise Litzen 31. Fig. 2 (c) shows a introduced into the electrical connection device 10 stranded conductor as an electrical conductor 3. The stranded conductor 3 has an electrically insulating sheath 32 and a plurality of flexible cores or strands 31st

In den Fig. 2(d) und (e) ist die Kontaktzone 2 vergrößert dargestellt. Sichtbar ist, dass die Litzen 31 vor allem gegen den ersten Kontaktbereich 21 gedrückt werden.In the Fig. 2 (d) and (e) the contact zone 2 is shown enlarged. It can be seen that the strands 31 are pressed against the first contact region 21, in particular.

In Fig. 3 ist als elektrische Anschlussvorrichtung 10 eine Federkraftklemme gezeigt, und zwar ein Push In- Stecker. In dieser Darstellung ist auch ein vorzugsweise metallisches Gehäuse 101 (Klemmkäfig) gezeigt, das im Bereich der elektrischen Kontakteinrichtung 1 ausgespart ist, so dass diese sichtbar ist.In Fig. 3 is shown as an electrical connection device 10, a spring terminal, namely a push-in connector. In this illustration, a preferably metallic housing 101 (clamping cage) is shown, which is recessed in the region of the electrical contact device 1, so that it is visible.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Elektrische KontakteinrichtungElectrical contact device
1111
Zuführseite der elektrischen KontakteinrichtungSupply side of the electrical contact device
111111
Zuführflanke an der ZuführseiteFeed edge on the feed side
1212
Zweite Seite der elektrischen KontakteinrichtungSecond side of the electrical contact device
22
Kontaktzonecontact zone
2121
Erster Kontaktbereich der KontaktzoneFirst contact area of the contact zone
211211
Erste Kontaktgeometrie des ersten KontaktbereichesFirst contact geometry of the first contact area
212212
ansteigende und abfallende Flanken der ersten Kontaktgeometrienrising and falling edges of the first contact geometries
2222
Zweiter Kontaktbereich der KontaktzoneSecond contact area of the contact zone
221221
Zweite Kontaktgeometrie des zweiten KontaktbereichesSecond contact geometry of the second contact area
222222
Kontaktflanke des zweiten KontaktbereichesContact edge of the second contact area
223223
Fallende Flanke der zweiten KontaktgeometrieFalling edge of the second contact geometry
x1, x2x1, x2
Erhebung der ersten und zweiten KontaktgeometrieSurvey of the first and second contact geometry
y1, y2y1, y2
Ausdehnung der ersten und zweiten KontaktzoneExpansion of the first and second contact zone
33
Leiter, Elektrischer LeiterConductor, electric conductor
3131
Ader des elektrischen LeitersCore of the electrical conductor
3232
Ummantelung des elektrischen LeitersSheath of the electrical conductor
44
Kraftmittel, FederPower means, spring
4141
Offenes Ende der FederOpen end of the spring
55
(Leiter-) Zuführrichtung(Conductor) feed direction
1010
Elektrische AnschlussvorrichtungElectrical connection device
101101
Klemmkäfig der elektrischen Anschlussvorrichtung, Stecker und/oder Buchse, Federkraftklemme, Push In- KlemmeClamping cage of the electrical connection device, plug and / or socket, spring-loaded terminal, push-in terminal
10111011
Bodenwandbottom wall
10121012
SeitenwandSide wall

Claims (7)

  1. Electrical contact device (1) for making contact with a single-core or multicore electrical conductor (3), which has a contact zone (2), wherein the contact zone (2) has a first contact region (21) and a second contact region (22), wherein the two contact regions (21, 22) have different roughnesses, wherein the first contact region (21), as viewed in a feed direction (5) of the conductor (3), is arranged behind the second contact region (22), and wherein the roughness is produced by contact geometries (211, 221), characterized in that the second contact geometry (221) of the second contact region (22) has an elevation (x2) which is larger in relation to the elevation (x1) of the first contact geometry (211) of the first contact region (21), and in that the second contact region (22) has an extension (y2) over the contact zone (2) which is smaller in relation to the extension (y1) of the first contact region (21) over the contact zone (2).
  2. Electrical contact device (1) according to claim 1, characterized in that a plurality of first contact geometries (211) is provided in the first contact region (21).
  3. Electrical contact device (1) according to one of the preceding claims, characterized in that the second contact region (22) has a contact geometry (221) which has a contact flank (222) rising in a feed direction (5) of the electrical conductor (3).
  4. Electrical contact device (1) according to one of the preceding claims, characterized in that it has a feed side (11) and a second side (12) opposite the feed side (11), wherein on its feed side (11) it comprises a feed flank (111) rising in the feed direction (5).
  5. Electrical connection device (10), comprising an electrical contact device (1) according to one of the preceding claims.
  6. Electrical connection device (10) according to claim 5, characterized in that it comprises a force means (4) for pressing an electrical conductor (3) arranged in the connection device (10) against the contact zone (2).
  7. Electrical connection device (10) according to claim 6, characterized in that it is a spring force terminal and that the force means (4) is a spring.
EP13735020.3A 2012-07-20 2013-07-09 Electric contact device for contacting an electric conductor Active EP2875550B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202012102732U DE202012102732U1 (en) 2012-07-20 2012-07-20 Electrical contact device for contacting an electrical conductor
PCT/EP2013/064514 WO2014012822A1 (en) 2012-07-20 2013-07-09 Electric contact device for contacting an electric conductor

Publications (2)

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EP2875550A1 EP2875550A1 (en) 2015-05-27
EP2875550B1 true EP2875550B1 (en) 2019-09-11

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Application Number Title Priority Date Filing Date
EP13735020.3A Active EP2875550B1 (en) 2012-07-20 2013-07-09 Electric contact device for contacting an electric conductor

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Country Link
EP (1) EP2875550B1 (en)
DE (1) DE202012102732U1 (en)
WO (1) WO2014012822A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016105192B3 (en) * 2016-02-16 2017-07-13 Wago Verwaltungsgesellschaft Mbh Conductor terminal
DE202018105269U1 (en) 2018-09-14 2019-12-17 Weidmüller Interface GmbH & Co. KG Busbar for an electrical conductor and assembly with the busbar

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1136393B (en) * 1959-08-07 1962-09-13 Elektroinstallation Annaberg V Screwless conductor connection terminal for electrical devices, especially for electrical installation material
DE2624397A1 (en) * 1976-05-31 1977-12-15 Siemens Ag Connecting device for paper or plastic insulated wires - is used in communication cable and has contact element with sharp points pressed to inserted wire

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101601170A (en) * 2007-02-07 2009-12-09 西门子公司 Electric equipment and apparatus arrangement
DE102009035716B4 (en) * 2009-07-31 2014-03-27 Wago Verwaltungsgesellschaft Mbh Connectors
DE202011100357U1 (en) * 2011-05-06 2011-07-14 Shang Tsai Wu Wiring clamp structures
DE202013001487U1 (en) * 2013-02-18 2013-03-11 Phoenix Contact Gmbh & Co. Kg Surge current optimized spring clamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1136393B (en) * 1959-08-07 1962-09-13 Elektroinstallation Annaberg V Screwless conductor connection terminal for electrical devices, especially for electrical installation material
DE2624397A1 (en) * 1976-05-31 1977-12-15 Siemens Ag Connecting device for paper or plastic insulated wires - is used in communication cable and has contact element with sharp points pressed to inserted wire

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DE202012102732U1 (en) 2013-10-22
EP2875550A1 (en) 2015-05-27
WO2014012822A1 (en) 2014-01-23

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