EP2299543B1 - Electrical connection device - Google Patents

Electrical connection device Download PDF

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Publication number
EP2299543B1
EP2299543B1 EP10178107.8A EP10178107A EP2299543B1 EP 2299543 B1 EP2299543 B1 EP 2299543B1 EP 10178107 A EP10178107 A EP 10178107A EP 2299543 B1 EP2299543 B1 EP 2299543B1
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EP
European Patent Office
Prior art keywords
electrical connection
connection device
spring
springs
ram
Prior art date
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EP10178107.8A
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German (de)
French (fr)
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EP2299543A1 (en
Inventor
Holger Spelsberg
Andreas Scheib
Walter Wirth
Dirk Quardt
Dirk Hauck
Lionel Demesy
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Guenther Spelsberg GmbH and Co KG
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Guenther Spelsberg GmbH and Co KG
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Publication of EP2299543A1 publication Critical patent/EP2299543A1/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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • 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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/247—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/031—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for multiphase cables, e.g. with contact members penetrating insulation of a plurality of conductors

Definitions

  • the invention relates to an electrical connection device for electrically connecting at least one electrical device to a plurality of insulated, non-intersected wires of at least one electrical cable, with cutting contact elements for electrically contacting the wires after dicing the insulation of the respective core, wherein for cutting the insulation and the electrical Contacting a respective core, a spring is provided in each case, with which a pressure force can be exerted on the respective cutting contact element.
  • the invention thus lies in the field of installation technology and relates to cases in which branches of uncut conductors are needed.
  • electrical equipment such as other electrical cables or electrical and / or electronic equipment to be connected, by means of cutting contacts.
  • connection device for at least at least one non-stripped line with a cutting body having a plurality of contact blades for cutting through the insulation.
  • the publication US 4 550 965 A describes an arrangement for connecting a conductive sheath of an insulated cable.
  • the document generally relates to an electrical connector for insulated metallic shielded cable, and more particularly to a connector for establishing the ground connection between the connected lines.
  • the publication GB 2 149 231 A describes an electrical connector for a main cable for making an electrical connection of the main cable to a conductor at a point located between the ends of the cable.
  • the invention is based on the object, an electrical connection device for electrically connecting at least one electrical device to a plurality of insulated, non-intersected wires of at least one electrical cable specify, with the universal and time-efficient manner a reliable electrical contact can be ensured.
  • an electrical connection device for electrically connecting at least one electrical device to a plurality of insulated, non-intersected wires of at least one cable, having a plurality of cutting contact elements for electrically contacting a respective core after cutting through the insulation of the respective core, wherein for cutting through Insulation and for electrically contacting a respective vein in each case a spring is provided, with the respective cutting contact element a compressive force is exercised, wherein a common, acting on the springs pressure plate is provided on the position of the pressure force is variable, which of the respective spring can be exercised on the respective cutting contact element and wherein a punch is provided, with which a wire is pressed onto the associated cutting contact element, characterized in that the punch is connected via a punch pin with a punch head, which varies depending on the clamping state of the spring by the pressure plate protrudes through.
  • the invention proposes that by changing the position of a common pressure plate, the tensioning of the springs can take place and the wires can be pressed against the cutting elements and thereby cut.
  • the printing plate is designed such that a stamp head / punch heads, which are rigidly connected to the stamp (s) via a stamp pin (s), protrude through the printing plate.
  • the cutting knives are usually solid elements without spring action. These may have, for example, relatively wide bearing surfaces with protruding knives, wherein the maximum depth of cut is fixed by the height of the knife. With a knife cross-section widening with increasing cutting depth, the required pressing force for deeper cutting of the wire becomes increasingly greater. If the spring force of the springs is chosen to be suitable, a defined depth of penetration of the knives into the vein results when the springs are tensioned, even without the knives making use of the maximum cutting depth.
  • the height at which the stamp head / punch heads protrude from the printing plate gives an exclusion of the spring travel and thus of the clamping and contact state of the device (s). This allows a visual control of the contacting / s.
  • the inclusion of cables with different conductor cross sections is ensured. So it is preferably possible with a single device to contact conductor cross-sections of 1.5 mm 2 to 50 mm 2 and compensate for corresponding tolerances. This ensures a safe and vibration-resistant contact. Furthermore, a quick, tool-free installation is made possible without the risk of cutting through the conductor.
  • the springs can compensate for tolerances of the device and vibration-resistant permanently ensure contact between the cutting contact elements and wire. By a suitable choice of the spring hardness and the form-related maximum penetration depth of the knife, a severing of the conductor can be excluded.
  • the electrical connection device in question is used in the design of junction boxes for tunnel applications.
  • a significant advantage of the arrangement lies in the way in which the tension of the springs takes place. This is done via the change in position of the common pressure plate. This means that the travel for all springs on the lowering of the pressure plate is equally shortened, whereby the springs are stretched simultaneously. In a suitable, preferably parallel, arrangement of a plurality of contact elements, a plurality of contacts can be produced simultaneously.
  • the exertion of the compressive force of the springs does not take place directly on the wires, but rather via a punch, safe transmission of power is ensured irrespective of the form factors of springs and wire.
  • the compressive force is evenly distributed over a larger pressure surface, so that even relatively thin wires can be contacted regardless of the cross section.
  • the tensioning of the springs of the device takes place via a tensioning device.
  • a clamping device advantageously allows simultaneous contacting for all wires.
  • the lowering of the pressure plate can advantageously be effected by the rotation of an eccentric element.
  • the eccentric element which is advantageously mounted on two sides and can be designed as an eccentric shaft on a U-shaped clamping frame, shortened during rotation, the distance between the shaft and the bottom of the U-shaped clamping frame.
  • the device (s) for contacting the wire (s) is / are arranged in a guide element which is covered by a pressure plate.
  • the pressure plate rests on the springs of the device / s.
  • the pressure plate is arranged on guide pins on the guide member so that it is movable in the direction of the spring travel of the springs, but not laterally thereto.
  • Advantageously guide element and pressure plate are compressed via a clamping frame.
  • a high torque is sometimes required for rotation of the eccentric element, especially when installing larger conductors.
  • a large lever arm is required, which is perpendicular to the axis of rotation as possible.
  • the Ansetznnenkeit is designed as a slot into which a screwdriver is inserted. In this way, a small construction is possible.
  • a further advantageous embodiment of the invention forms a mechanical protection against unwanted relaxation. If the device for contacting surrounded by a housing, it is proposed according to the invention, the housing so dimensioned that when the housing is closed, a relaxation of the springs is not spatially possible.
  • the device is used in an electrical box for installing an electrical branch, in particular in a junction box for tunneling applications, wherein a single or multi-core insulated electrical cable is in and out of the box through one or more openings.
  • Fig. 1 shows a schematic representation of an embodiment of the electrical connection.
  • a cutting contact element 1 is contacted with the wire 7 of a cable electrically conductive.
  • the wire 7 is pressed by a punch 2 on the cutting contact element.
  • the pressure is exerted by the clamping force of the spring 3.
  • the tension of the spring is determined by the position of the counter-pressure element 11 in relation to the wire and stretched in the direction of movement 8, wherein the counter-pressure element is shown only schematically in this figure.
  • the counter-pressure element 11 is pierced by the punch pin 8.
  • the plunger pin protrudes differently far beyond the counterpressure element.
  • the counterpressure element is designed as a pressure plate and this pressure plate actuates a plurality of contacts, a uniform puncture height of the stamper pins by the pressure plate allows a uniform cutting depth of the individual contacts to be closed. In particular, a far out of the pressure plate pin would be an indication of only a small depth of cut.
  • Fig. 2 shows a tensioning device for tensioning the device for contacting in which a clamping frame 12, an eccentric element 13, namely an eccentric shaft receives. Due to the eccentric cross section, the distance between the shaft and the lower frame 12 changes as the shaft 13 rotates. This distance change initially corresponds to the spring travel of the spiral spring 3 used in this embodiment. By the penetration of the cutting edge of the cutting contact element 1 by the insulation of the wire 7, the spring travel is extended by the length of the cutting depth.
  • the slot 15 of the shaft can be used to insert a screwdriver.
  • the height-displaceable by the eccentric shaft pressure plate is not shown here.
  • FIG. 3 a clamping block for contacting one or more wires.
  • a guide element 10 takes one or more cutting contacts according to Fig. 1 on.
  • a pressure plate 11 is arranged at a variable height above the guide element and is located on the springs 3, preferably via disks 4. The guide element guides both the lid against lateral displacement and isolated from each other, the individual and optionally also different thicknesses of wires 7 and 9 of the cable.
  • Fig. 4 is the clamping block off Figure 3 can be seen, tense with the help of a jig Fig. 2 , Depending on the travel of the tensioned springs, the punch heads 6 protrude differently far out of the pressure cap 11. The height at which a respective stamp head 6 protrudes from the printing plate 11 provides information about the cutting depth and the successful contacting.
  • Fig. 5 shows the invention in a surrounding housing, preferably an electrical box, consisting of a housing pan 16 and a housing cover 17.
  • a housing pan 16 preferably an electrical box
  • a housing cover 17 When the lid is closed, the cover punch 18 lie on the grooves 14 of the eccentric shaft and thus prevent rotation of the shaft or relax the clamping device ,

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Description

Die Erfindung betrifft eine elektrische Anschlussvorrichtung, zum elektrischen Anschließen wenigstens einer elektrischen Einrichtung an eine Mehrzahl von isolierten, nichtdurchschnittenen Adern wenigstens eines elektrischen Kabels, mit Schneidkontaktelementen zum elektrischen Kontaktieren der Adern nach Durschneiden der Isolierung der jeweiligen Ader, wobei zum Durchschneiden der Isolierung und zum elektrischen Kontaktieren einer jeweiligen Ader jeweils eine Feder vorgesehen ist, mit der auf das jeweilige Schneidkontaktelement eine Druckkraft ausübbar ist.The invention relates to an electrical connection device for electrically connecting at least one electrical device to a plurality of insulated, non-intersected wires of at least one electrical cable, with cutting contact elements for electrically contacting the wires after dicing the insulation of the respective core, wherein for cutting the insulation and the electrical Contacting a respective core, a spring is provided in each case, with which a pressure force can be exerted on the respective cutting contact element.

Die Erfindung liegt somit auf dem Gebiet der Installationstechnik und betrifft Fälle, in denen Abzweige von nicht geschnittenen Leitern benötigt werden. An diese sollen elektrische Einrichtungen, wie andere elektrische Kabel oder elektrische und/oder elektronische Anlagen angeschlossen werden, und zwar mittels Schneidkontakten.The invention thus lies in the field of installation technology and relates to cases in which branches of uncut conductors are needed. To this electrical equipment, such as other electrical cables or electrical and / or electronic equipment to be connected, by means of cutting contacts.

Bekannte Kontaktmechanismen zur Kontaktierung auch mehradriger Kabel weisen diverse Nachteile auf. Bus-Kontaktierungsklemmen in der Computertechnik sind nur für kleine Ströme und auf einen engen mechanischen Toleranzbereich ausgelegt. Die Schneidtiefe von Schneidkontakten ist dabei im Wesentlichen durch die Bauart fest vorgegeben und nur für eine bestimmte Kabeldicke ausgelegt. Zu dicke Kabel werden teilweise durchschnitten, zu dünne Kabel nicht oder nicht hinreichend kontaktiert. Beim Auftreten von Vibrationen besteht außerdem die Gefahr, dass der Kontakt zwischen dem fest stehenden Schneidmesser und dem Kabel unterbrochen wird.Known contact mechanisms for contacting even multi-core cables have various disadvantages. Computer-based bus bonding terminals are designed for small currents and a narrow mechanical tolerance range only. The cutting depth of cutting contacts is essentially fixed by the type and designed only for a specific cable thickness. Too thick cables are partially cut through, too thin cables are not or not adequately contacted. When vibrations occur, there is also a risk that the contact between the fixed cutting blade and the cable is interrupted.

Die Druckschrift WO98/49751 A1 beschreibt einen elektrischen Steckverbinder mit federnden Schneidklemmen, der in erster Linie zur Verwendung in einem Abzweigverbinder vorgesehen ist.The publication WO98 / 49751 A1 describes an electrical connector with resilient insulation displacement terminals, which is intended primarily for use in a branch connector.

Die Druckschrift WO 98/33235 A1 beschreibt eine Anschlussvorrichtung für mindestens mindestens eine nicht abisolierte Leitung mit einem Schneidkörper, der mehrere Kontaktschneiden zum Durchschneiden der Isolierung aufweist.The publication WO 98/33235 A1 describes a connection device for at least at least one non-stripped line with a cutting body having a plurality of contact blades for cutting through the insulation.

Die Druckschrift US 4 550 965 A beschreibt eine Anordnung zum Verbinden einer leitfähigen Ummantelung eines isolierten Kabels. Die Druckschrift bezieht sich allgemein auf einen elektrischen Verbinder für isoliertes, metallisch abgeschirmtes Kabel und beschreibt insbesondere einen Verbinder zum Herstellen der Masseverbindung zwischen den angeschlossenen Leitungen.The publication US 4 550 965 A describes an arrangement for connecting a conductive sheath of an insulated cable. The document generally relates to an electrical connector for insulated metallic shielded cable, and more particularly to a connector for establishing the ground connection between the connected lines.

Die Druckschrift GB 2 149 231 A beschreibt einen elektrischen Verbinder für ein Hauptkabel zur Herstellung einer elektrischen Verbindung des Hauptkabels mit einem Leiter an einem zwischen den Enden des Kabels gelegenen Punkt.The publication GB 2 149 231 A describes an electrical connector for a main cable for making an electrical connection of the main cable to a conductor at a point located between the ends of the cable.

Der Erfindung liegt die Aufgabe zu Grunde, eine elektrische Anschlussvorrichtung zum elektrischen Anschließen wenigstens einer elektrischen Einrichtung an eine Mehrzahl von isolierten, nichtdurchschnittenen Adern wenigstens eines elektrischen Kabels, anzugeben, mit der auf universelle und zeiteffiziente Weise eine verlässliche elektrische Kontaktierung gewährleistet werden kann.The invention is based on the object, an electrical connection device for electrically connecting at least one electrical device to a plurality of insulated, non-intersected wires of at least one electrical cable specify, with the universal and time-efficient manner a reliable electrical contact can be ensured.

Die Lösung der Aufgabe erfolgt erfindungsgemäß durch die Merkmale des unabhängigen Anspruchs. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.The object is achieved according to the invention by the features of the independent claim. Advantageous embodiments of the invention are specified in the subclaims.

Erfindungsgemäß ist dazu vorgesehen eine elektrische Anschlussvorrichtung, zum elektrischen Anschließen wenigstens einer elektrischen Einrichtung an eine Mehrzahl von isolierten, nichtdurchschnittenen Adern wenigstens eines Kabels, mit einer Mehrzahl von Schneidkontaktelementen zum elektrischen Kontaktieren einer jeweiligen Ader nach Durchschneiden der Isolierung der jeweiligen Ader, wobei zum Durchschneiden der Isolierung und zum elektrischen Kontaktieren einer jeweiligen Ader jeweils eine Feder vorgesehen ist, mit der auf das jeweilige Schneidkontaktelement eine Druckkraft ausübbar ist, wobei eine gemeinsame, auf die Federn wirkende Druckplatte vorgesehen ist, über deren Lage die Druckkraft veränderbar ist, welche von der jeweiligen Feder auf das jeweilige Schneidkontaktelement ausübbar ist und wobei ein Stempel vorgesehen ist, mit dem eine Ader auf das zugehörige Schneidkontaktelement gedrückt wird, dadurch gekennzeichnet, dass der Stempel über einen Stempelstift mit einem Stempelkopf verbunden ist, welcher je nach Spannzustand der Feder unterschiedlich weit durch die Druckplatte hindurch ragt.According to the invention, an electrical connection device is provided for electrically connecting at least one electrical device to a plurality of insulated, non-intersected wires of at least one cable, having a plurality of cutting contact elements for electrically contacting a respective core after cutting through the insulation of the respective core, wherein for cutting through Insulation and for electrically contacting a respective vein in each case a spring is provided, with the respective cutting contact element a compressive force is exercised, wherein a common, acting on the springs pressure plate is provided on the position of the pressure force is variable, which of the respective spring can be exercised on the respective cutting contact element and wherein a punch is provided, with which a wire is pressed onto the associated cutting contact element, characterized in that the punch is connected via a punch pin with a punch head, which varies depending on the clamping state of the spring by the pressure plate protrudes through.

Mit anderen Worten wird erfindungsgemäß vorgeschlagen, dass durch die Lageänderung einer gemeinsamen Druckplatte das Spannen der Federn erfolgen kann und die Adern gegen die Schneidelemente gedrückt und dadurch geschnitten werden können. Weiterhin wird die Druckplatte so ausgestaltet, dass ein Stempelkopf/ Stempelköpfe, welche/r über einen Stempelstift/e mit dem Stempel/n starr verbunden ist/sind, durch die Druckplatte hindurchragt/hindurchragen. Eine derartige Anordnung bietet eine Mehrzahl von Vorteilen:In other words, the invention proposes that by changing the position of a common pressure plate, the tensioning of the springs can take place and the wires can be pressed against the cutting elements and thereby cut. Furthermore, the printing plate is designed such that a stamp head / punch heads, which are rigidly connected to the stamp (s) via a stamp pin (s), protrude through the printing plate. Such an arrangement offers a number of advantages:

Die Schneidmesser sind in der Regel feste Elemente ohne Federwirkung. Diese können beispielsweise relativ breite Auflageflächen mit hervorstehenden Messern aufweisen, wobei die maximale Schneidtiefe durch die Höhe der Messer fest vorgegeben ist. Bei einem sich mit zunehmender Schneidtiefe verbreiternden Messerquerschnitt wird die erforderliche Aufdruckkraft zum tieferen Einschneiden der Ader zunehmend größer. Wird nun die Federkraft der Federn passend gewählt, so ergibt sich bei gespannten Federn eine definierte Eindringtiefe der Messer in die Ader, auch ohne dass die Messer die maximale Schneidtiefe ausnutzen.The cutting knives are usually solid elements without spring action. These may have, for example, relatively wide bearing surfaces with protruding knives, wherein the maximum depth of cut is fixed by the height of the knife. With a knife cross-section widening with increasing cutting depth, the required pressing force for deeper cutting of the wire becomes increasingly greater. If the spring force of the springs is chosen to be suitable, a defined depth of penetration of the knives into the vein results when the springs are tensioned, even without the knives making use of the maximum cutting depth.

Die Höhe, mit der der Stempelkopf/die Stempelköpfe aus der Druckplatte herausragt/herausragen, gibt Ausschluss über den Federweg und somit über den Spann-und Kontaktzustand der Vorrichtung/en. Damit ist eine visuelle Kontrolle der Kontaktierung/en ermöglicht.The height at which the stamp head / punch heads protrude from the printing plate gives an exclusion of the spring travel and thus of the clamping and contact state of the device (s). This allows a visual control of the contacting / s.

Erfindungsgemäß wird die Aufnahme von Kabeln mit verschiedenen Leiterquerschnitten gewährleistet. So ist es mit einer einzigen Vorrichtung vorzugsweise möglich, Leiterquerschnitte von 1.5 mm2 bis 50 mm2 zu kontaktieren und entsprechende Toleranzen auszugleichen. Dabei wird eine sichere und vibrationsfeste Kontaktierung gewährleistet. Weiterhin wird eine schnelle, werkzeuglose Installation ermöglicht, ohne dass eine Gefahr des Durchtrennens des Leiters besteht. Dabei können die Federn Toleranzen der Vorrichtung ausgleichen und vibrationssicher dauerhaft einen Kontakt zwischen Schneidkontaktelementen und Ader gewährleisten. Durch geeignete Wahl der Federhärte und die formbedingte maximale Eindringtiefe der Messer kann ein Durchtrennen des Leiters ausgeschlossen werden.According to the invention the inclusion of cables with different conductor cross sections is ensured. So it is preferably possible with a single device to contact conductor cross-sections of 1.5 mm 2 to 50 mm 2 and compensate for corresponding tolerances. This ensures a safe and vibration-resistant contact. Furthermore, a quick, tool-free installation is made possible without the risk of cutting through the conductor. The springs can compensate for tolerances of the device and vibration-resistant permanently ensure contact between the cutting contact elements and wire. By a suitable choice of the spring hardness and the form-related maximum penetration depth of the knife, a severing of the conductor can be excluded.

Gemäß einer bevorzugten Ausführungsform der Erfindung wird die in Rede stehende elektrische Anschlussvorrichtung bei der Ausgestaltung von Abzweigdosen für Tunnelanwendungen verwendet.According to a preferred embodiment of the invention, the electrical connection device in question is used in the design of junction boxes for tunnel applications.

Ein wesentlicher Vorteil der Anordnung liegt in der Art und Weise, in der die Spannung der Federn erfolgt. Diese erfolgt über die Lageänderung der gemeinsamen Druckplatte. Das heißt, dass der Federweg für alle Federn über das Senken der Druckplatte gleichermaßen verkürzt wird, wodurch die Federn zeitgleich gespannt werden. Bei geeigneter, vorzugsweise paralleler, Anordnung von mehreren Kontaktelementen können mehrere Kontakte gleichzeitig hergestellt werden.A significant advantage of the arrangement lies in the way in which the tension of the springs takes place. This is done via the change in position of the common pressure plate. This means that the travel for all springs on the lowering of the pressure plate is equally shortened, whereby the springs are stretched simultaneously. In a suitable, preferably parallel, arrangement of a plurality of contact elements, a plurality of contacts can be produced simultaneously.

Erfolgt die Ausübung der Druckkraft der Federn nicht auf die Adern direkt, sondern über einen Stempel, so ist unabhängig von Formfaktoren von Federn und Ader eine sichere Kraftübertragung gewährleistet. So wird zum Beispiel bei Verwendung von Spiralfedern durch die Verwendung eines Stempels die Druckkraft auf eine größere Andruckfläche gleichmäßig verteilt, sodass querschnittsunabhängig auch relativ dünne Adern kontaktiert werden können.If the exertion of the compressive force of the springs does not take place directly on the wires, but rather via a punch, safe transmission of power is ensured irrespective of the form factors of springs and wire. For example, when using coil springs by the use of a punch, the compressive force is evenly distributed over a larger pressure surface, so that even relatively thin wires can be contacted regardless of the cross section.

Vorteilhaft erfolgt das Spannen der Federn der Vorrichtung über eine Spannvorrichtung. Insbesondere bei mehradrigen Kabeln ermöglicht eine Spannvorrichtung vorteilhaft für alle Adern eine gleichzeitige Kontaktierung.Advantageously, the tensioning of the springs of the device takes place via a tensioning device. Especially with multi-core cables, a clamping device advantageously allows simultaneous contacting for all wires.

Dabei kann das Herabsenken der Druckplatte vorteilhaft durch das Verdrehen eines exzentrischen Elementes erfolgen. Das exzentrische Element, welches vorteilhaft zweiseitig gelagert wird und als exzentrische Welle über einem U-förmigen Spannrahmen ausgeführt werden kann, verkürzt bei Drehung den Abstand zwischen der Welle und der Unterseite des U-förmigen Spannrahmens.In this case, the lowering of the pressure plate can advantageously be effected by the rotation of an eccentric element. The eccentric element, which is advantageously mounted on two sides and can be designed as an eccentric shaft on a U-shaped clamping frame, shortened during rotation, the distance between the shaft and the bottom of the U-shaped clamping frame.

Vorteilhaft wird/werden die Vorrichtung/en zur Kontaktierung der Ader/n in einem Führungselement angeordnet, welches von einer Druckplatte abgedeckt wird. Dabei liegt die Druckplatte auf den Federn der Vorrichtung/en auf. Vorteilhaft wird die Druckplatte über Führungsstifte so auf dem Führungselement angeordnet, dass sie in Richtung des Federwegs der Federn beweglich ist, nicht jedoch seitlich dazu.Advantageously, the device (s) for contacting the wire (s) is / are arranged in a guide element which is covered by a pressure plate. The pressure plate rests on the springs of the device / s. Advantageously, the pressure plate is arranged on guide pins on the guide member so that it is movable in the direction of the spring travel of the springs, but not laterally thereto.

Vorteilhaft werden Führungselement und Druckplatte über einen Spannrahmen zusammengedrückt. Dabei wird zur Drehung des exzentrischen Elementes insbesondere bei Installation größerer Leiter mitunter ein hohes Drehmoment erforderlich. Um dieses aufzubringen, wird ein großer Hebelarm benötigt, der möglichst senkrecht zur Drehachse steht. Als vorteilhafte Ausprägung der Erfindung wird vorgeschlagen, eine solchen, raumgreifenden Hebel nicht dauerhaft zu verbinden, sondern das exzentrische Element so auszubilden, dass eine Ansetzmöglichkeit für einen nicht dauerhaft zu der Anordnung gehörenden und nicht in der Drehachse liegenden Hebel gegeben ist. Vorzugsweise ist die Ansetzmöglichkeit als Schlitz ausgebildet, in den ein Schraubenzieher eingesteckt wird. Auf diese Weise wird eine kleine Bauweise ermöglicht.Advantageously guide element and pressure plate are compressed via a clamping frame. In this case, a high torque is sometimes required for rotation of the eccentric element, especially when installing larger conductors. To apply this, a large lever arm is required, which is perpendicular to the axis of rotation as possible. As an advantageous embodiment of the invention, it is proposed that such, spatially engaging levers not permanently connect, but the eccentric element in such a way that a piecemeal option for a not permanently belonging to the arrangement and not lying in the axis of rotation lever is given. Preferably, the Ansetzmöglichkeit is designed as a slot into which a screwdriver is inserted. In this way, a small construction is possible.

Eine weitere vorteilhafte Ausgestaltung der Erfindung bildet eine mechanische Sicherung gegen ungewolltes Entspannen. Wird die Vorrichtung zur Kontaktierung von einem Gehäuse umgeben, so wird erfindungsgemäß vorgeschlagen, das Gehäuse so zu bemessen, dass bei geschlossenem Gehäuse ein Entspannen der Federn räumlich nicht möglich ist.A further advantageous embodiment of the invention forms a mechanical protection against unwanted relaxation. If the device for contacting surrounded by a housing, it is proposed according to the invention, the housing so dimensioned that when the housing is closed, a relaxation of the springs is not spatially possible.

Dieses kann vorteilhaft dadurch erzielt werden, dass die Sicherung gegen Entspannen durch direktes oder indirektes Aufliegen des Gehäusedeckels auf der Druckplatte erfolgt, oder dass bei geschlossenem Gehäuse wenigstens ein im Gehäusedeckel befindlicher Deckelstempel in eine Nut des exzentrischen Elementes greift und dieses gegen Verdrehen sichert.This can advantageously be achieved in that the protection against relaxation by direct or indirect contact of the housing cover is carried on the pressure plate, or that when the housing is closed at least one cover located in the housing cover engages in a groove of the eccentric element and this secures against rotation.

Vorteilhaft wird die Vorrichtung in einer Elektroinstallationsdose zur Installation eines elektrischen Abzweigs verwendet, insbesondere in einer Abzweigdose für Tunnelanwendungen, wobei ein ein- oder mehradriges isoliertes elektrisches Kabel unzertrennt durch die Dose durch eine oder mehrere Öffnungen ein und wieder ausgeführt wird.Advantageously, the device is used in an electrical box for installing an electrical branch, in particular in a junction box for tunneling applications, wherein a single or multi-core insulated electrical cable is in and out of the box through one or more openings.

Nachfolgend wird die Erfindung unter Bezugnahme auf die anliegende Zeichnung anhand bevorzugter Ausführungsformen näher erläutert.The invention will be explained in more detail with reference to the accompanying drawings with reference to preferred embodiments.

Es zeigen

Fig. 1
eine Vorrichtung zur elektrischen Kontaktierung gemäß einem bevorzugten Ausführungsbeispiel der Erfindung,
Fig. 2
eine Spannvorrichtung zur Spannung der Vorrichtung zur Kontaktierung gemäß dem bevorzugten Ausführungsbeispiel der Erfindung,
Fig. 3
einen Spannblock zur Kontaktierung mehrerer Adern gemäß einem bevorzugten Ausführungsbeispiel der Erfindung,
Fig. 4
einen Spannblock gespannt von einer Spannvorrichtung gemäß einem bevorzugten Ausführungsbeispiel der Erfindung, und
Fig. 5 a und b
ein eine erfindungsgemäße Vorrichtung zur elektrischen Kontaktierung umgebendes Gehäuse gemäß einem bevorzugten Ausführungsbeispiel der Erfindung.
Show it
Fig. 1
a device for electrical contacting according to a preferred embodiment of the invention,
Fig. 2
a tensioning device for tensioning the device for contacting according to the preferred embodiment of the invention,
Fig. 3
a clamping block for contacting a plurality of wires according to a preferred embodiment of the invention,
Fig. 4
a clamping block clamped by a clamping device according to a preferred embodiment of the invention, and
Fig. 5 a and b
a housing according to the invention for electrical contacting surrounding housing according to a preferred embodiment of the invention.

Fig. 1 zeigt in schematischer Darstellung ein Ausführungsbeispiel der elektrischen Verbindung. Ein Schneidkontaktelement 1 ist mit der Ader 7 eines Kabels elektrisch leitend kontaktiert. Dabei wird die Ader 7 von einem Stempel 2 auf das Schneidkontaktelement gedrückt. Der Druck wird durch die Spannkraft der Feder 3 ausgeübt. Die Spannung der Feder wird durch die Lage des Gegendruckelements 11 in Relation zu der Ader bestimmt und bei Bewegung in Richtung 8 gespannt, wobei das Gegendruckelement in dieser Figur nur schematisch dargestellt ist. Das Gegendruckelement 11 wird vom Stempelstift 8 durchstoßen. In Abhängigkeit vom Spannzustand der Feder ragt der Stempelstift unterschiedlich weit durch das Gegendruckelement hinaus. Wird das das Gegendruckelement als Druckplatte ausgeführt und betätigt diese Druckplatte mehrere Kontakte, lässt eine gleichmäßige Durchstoßhöhe der Stempelstifte durch die Druckplatte auf eine gleichmäßige Schneidtiefe der einzelnen Kontakte schließen. Insbesondere wäre ein weit aus der Druckplatte herausragender Stift ein Indiz für eine nur geringe Schneidtiefe. Fig. 1 shows a schematic representation of an embodiment of the electrical connection. A cutting contact element 1 is contacted with the wire 7 of a cable electrically conductive. The wire 7 is pressed by a punch 2 on the cutting contact element. The pressure is exerted by the clamping force of the spring 3. The tension of the spring is determined by the position of the counter-pressure element 11 in relation to the wire and stretched in the direction of movement 8, wherein the counter-pressure element is shown only schematically in this figure. The counter-pressure element 11 is pierced by the punch pin 8. Depending on the tension state of the spring, the plunger pin protrudes differently far beyond the counterpressure element. If the counterpressure element is designed as a pressure plate and this pressure plate actuates a plurality of contacts, a uniform puncture height of the stamper pins by the pressure plate allows a uniform cutting depth of the individual contacts to be closed. In particular, a far out of the pressure plate pin would be an indication of only a small depth of cut.

Fig. 2 zeigt eine Spannvorrichtung zur Spannung der Vorrichtung zur Kontaktierung bei der ein Spannrahmen 12 ein exzentrisches Element 13, nämlich eine exzentrische Welle aufnimmt. Auf Grund des exzentrischen Querschnittes verändert sich bei Drehung der Welle 13 der zwischen Welle und unterem Rahmen 12 existierende Abstand. Diese Distanzänderung entspricht zunächst dem Federweg der in diesem Ausführungsbeispiel verwendeten Spiralfeder 3. Durch das Durchdringen der Schneide des Schneidkontaktelements 1 durch die Isolierung der Ader 7 wird der Federweg um die Länge der Schneidtiefe verlängert. Fig. 2 shows a tensioning device for tensioning the device for contacting in which a clamping frame 12, an eccentric element 13, namely an eccentric shaft receives. Due to the eccentric cross section, the distance between the shaft and the lower frame 12 changes as the shaft 13 rotates. This distance change initially corresponds to the spring travel of the spiral spring 3 used in this embodiment. By the penetration of the cutting edge of the cutting contact element 1 by the insulation of the wire 7, the spring travel is extended by the length of the cutting depth.

Der Schlitz 15 der Welle kann zur Einführung eines Schraubenziehers verwendet werden. Die von der exzentrischen Welle in der Höhe verschiebbare Druckplatte ist hier nicht dargestellt.The slot 15 of the shaft can be used to insert a screwdriver. The height-displaceable by the eccentric shaft pressure plate is not shown here.

Weiterhin zeigt Fig. 3 einen Spannblock zur Kontaktierung einer oder mehrerer Adern. Ein Führungselement 10 nimmt einen oder mehrere Schneidkontakte gemäß Fig. 1 auf. Eine Druckplatte 11 ist in variierbarer Höhe über dem Führungselement angeordnet und liegt, vorzugsweise über Scheiben 4, auf den Federn 3 auf. Das Führungselement führt sowohl den Deckel gegen seitliches Verschieben als auch von einander isoliert die einzelnen und gegebenenfalls auch unterschiedlich dicken Adern 7 und 9 des Kabels.Further shows Fig. 3 a clamping block for contacting one or more wires. A guide element 10 takes one or more cutting contacts according to Fig. 1 on. A pressure plate 11 is arranged at a variable height above the guide element and is located on the springs 3, preferably via disks 4. The guide element guides both the lid against lateral displacement and isolated from each other, the individual and optionally also different thicknesses of wires 7 and 9 of the cable.

Aus Fig. 4 ist der Spannblock aus Fig.3 ersichtlich, und zwar gespannt mit Hilfe einer Spannvorrichtung aus Fig. 2. In Abhängigkeit vom Federweg der gespannten Federn ragen die Stempelköpfe 6 unterschiedlich weit aus dem Druckdeckel 11 heraus. Die Höhe, mit welcher ein jeweiliger Stempelkopf 6 aus Druckplatte 11 herausragt, gibt Aufschluss über die Schneidtiefe und die erfolgreiche Kontaktierung.Out Fig. 4 is the clamping block off Figure 3 can be seen, tense with the help of a jig Fig. 2 , Depending on the travel of the tensioned springs, the punch heads 6 protrude differently far out of the pressure cap 11. The height at which a respective stamp head 6 protrudes from the printing plate 11 provides information about the cutting depth and the successful contacting.

Fig. 5 zeigt die Erfindung in einem sie umgebenden Gehäuse, vorzugsweise einer Elektroinstallationsdose, bestehend aus einer Gehäusewanne 16 sowie einem Gehäusedeckel 17. Bei geschlossenem Deckel liegen die Deckelstempel 18 auf den Nuten 14 der exzentrischen Welle auf und verhindern so ein Verdrehen der Welle bzw. Entspannen der Spannvorrichtung. Fig. 5 shows the invention in a surrounding housing, preferably an electrical box, consisting of a housing pan 16 and a housing cover 17. When the lid is closed, the cover punch 18 lie on the grooves 14 of the eccentric shaft and thus prevent rotation of the shaft or relax the clamping device ,

BezugszeichenlisteLIST OF REFERENCE NUMBERS

SchneidkontaktelementCutting contact element
11
Stempelstamp
22
Federfeather
33
Scheibedisc
44
Stempelstiftstamp pin
55
Stempelkopfram head
66
Ader dickThick thick
77
Bewegungsrichtung des GegendruckelementsDirection of movement of the counter-pressure element
88th
Ader dünnVein thin
99
Führungselementguide element
1010
Gegendruckelement (Druckplatte)Counterpressure element (pressure plate)
1111
Druckrahmenprinting frame
1212
Exzentrisches Element (Welle)Eccentric element (shaft)
1313
Nutgroove
1414
Schlitzslot
1515
Gehäusewannehousing trough
1616
Gehäusedeckelhousing cover
1717
Deckelstempelcover temple
1818
Kabelelectric wire
1919

Claims (12)

  1. An electrical connection device for electrically connecting at least one piece of electrical equipment to a plurality of insulated uncut cores (7) of at least one cable (19),
    comprising a plurality of blade contact elements (1) each for electrically contacting a particular core (7) once the insulation of the core (7) in question has been cut through,
    wherein, in order to cut through the insulation and electrically contact a particular core (7), a spring (3) is provided in each case, by means of which a compressive force can be applied to the blade contact element (1) in question, wherein
    a common pressing plate (11) acting on the springs (3) is provided, the position of said pressing plate being able to change the compressive force which can be applied by each of the springs (3) to its associated blade contact element (1), and wherein
    a ram (2) is provided, by means of which a core (7) is pressed onto the associated blade contact element (1),
    characterised in that
    the ram (2) is connected via a ram pin (5) to a ram head (6) which protrudes to a varying extent through the pressing plate (11) depending on the tensioned state of the spring (3).
  2. The electrical connection device according to claim 1, characterised in that the compressive force can be applied to a particular core (7) by a particular spring (3) via a movable ram (2).
  3. The electrical connection device according to claim 1 or 2, characterised in that the springs (3) can be tensioned at the same time via a tensioning device.
  4. The electrical connection device according to any one of the preceding claims, characterised in that the springs (3) can be tensioned by rotating an eccentric element (13).
  5. The electrical connection device according to claim 4, characterised in that the eccentric element (13) is formed in such a way that, in order to apply a torque, a lever which does not lie in the axis of rotation and which preferably is not permanently secured can be used.
  6. The electrical connection device according to claim 5, characterised in that the eccentric element (13) has a slot (15) into which a lever, preferably a screwdriver, can be inserted.
  7. The electrical connection device according to any one of claims 4 to 6, characterised in that the eccentric element (13) is mounted on two sides, preferably in a pressure frame (12) taking up the forces.
  8. The electrical connection device according to any one of the preceding claims, characterised in that a display element is provided, with which the establishment of contact with a core and/or the tensioned state of a spring (3) can be identified.
  9. The electrical connection device according to any one of the preceding claims, characterised in that a securing device is provided for preventing a spring (3) from relaxing when this is not desired.
  10. The electrical connection device according to claim 9, characterised in that an external housing which can be closed by a housing lid (17) is provided, which, when the housing lid (17) is closed, prevents at least one spring (3), preferably all springs (3), from relaxing.
  11. The electrical connection device according to claim 10, characterised in that the spring(s) (3) is/are prevented from relaxing in that the housing lid (17) rests on the pressing plate (11).
  12. The electrical connection device according to claim 11, characterised in that, when the housing is closed, at least one lid ram (18) disposed in the housing lid (17) engages in a groove (14) in the eccentric element (13) and prevents this from twisting.
EP10178107.8A 2009-09-22 2010-09-21 Electrical connection device Active EP2299543B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009042254A DE102009042254A1 (en) 2009-09-22 2009-09-22 Electrical connection device

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Publication Number Publication Date
EP2299543A1 EP2299543A1 (en) 2011-03-23
EP2299543B1 true EP2299543B1 (en) 2016-11-02

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DE (1) DE102009042254A1 (en)

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WO2005099058A1 (en) * 2004-03-08 2005-10-20 Blue Moon W W Fire resistant bypass box
FR2881282A1 (en) * 2005-01-27 2006-07-28 Procedes Marechal Sepm Sa Soc Electrical shunt box for lighting system, has plastic box penetrated by electric line cable that is formed of conductors, where conductors are connected on screw terminals mounted on support fixed on metal plate that is fixed on box

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CH689682A5 (en) * 1992-11-24 1999-08-13 Siemens Schweiz Ag Arrangement for coupling a connecting cable with a number of conductors
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WO1998033235A1 (en) * 1997-01-22 1998-07-30 Siemens Aktiengesellschaft Connecting device for at least one non-bared conductor
BR9701976A (en) * 1997-04-30 1998-12-22 Whitaker Corp Electrical connector for use in making an electrical contact with an electrical conductor
DE19814182C2 (en) * 1998-03-30 2000-05-11 Siemens Ag Contact system for contactless stripping
JP2004235879A (en) * 2003-01-29 2004-08-19 Sumitomo Electric Ind Ltd Signal injection/extraction device
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FR2725078A1 (en) * 1994-09-28 1996-03-29 Connecteurs Albert Bonneau Cab Electrical connector for linking main and subsidiary electric cables e.g. for use in lighting railway lines or tunnels
WO2005099058A1 (en) * 2004-03-08 2005-10-20 Blue Moon W W Fire resistant bypass box
FR2881282A1 (en) * 2005-01-27 2006-07-28 Procedes Marechal Sepm Sa Soc Electrical shunt box for lighting system, has plastic box penetrated by electric line cable that is formed of conductors, where conductors are connected on screw terminals mounted on support fixed on metal plate that is fixed on box

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DE102009042254A1 (en) 2011-03-31

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