EP3934029A1 - Connecting element with a flexible contact element - Google Patents

Connecting element with a flexible contact element Download PDF

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Publication number
EP3934029A1
EP3934029A1 EP21182474.3A EP21182474A EP3934029A1 EP 3934029 A1 EP3934029 A1 EP 3934029A1 EP 21182474 A EP21182474 A EP 21182474A EP 3934029 A1 EP3934029 A1 EP 3934029A1
Authority
EP
European Patent Office
Prior art keywords
contact
connecting element
designed
contact zones
linear
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.)
Withdrawn
Application number
EP21182474.3A
Other languages
German (de)
French (fr)
Inventor
Michael Burger
Markus Bayer
Markus Dorscht
Oliver Lang
Frank Pfaff
Helmut Schöpplein
Alexandra THUM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wieland Electric GmbH
Original Assignee
Wieland Electric GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wieland Electric GmbH filed Critical Wieland Electric GmbH
Publication of EP3934029A1 publication Critical patent/EP3934029A1/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R11/03—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 characterised by the relationship between the connecting locations
    • H01R11/09—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 characterised by the relationship between the connecting locations the connecting locations being identical
    • 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
    • H01R11/01—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 characterised by the form or arrangement of the conductive interconnection between the connecting locations
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • H01R13/6315—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only allowing relative movement between coupling parts, e.g. floating connection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • H01R25/145—Details, e.g. end pieces or joints
    • 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
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • 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
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means

Definitions

  • the invention relates to a connecting element for electrically connecting two supply units, each with a number of conductors of a linear power distribution arrangement, the connecting element having a number of contact elements, each comprising two contact zones, which are connected to one another in an electrically conductive manner via a bridge element and are each designed for this purpose to receive a conductor of the two base bodies in a contacting manner.
  • the invention also relates to a linear supply unit for a linear power distribution arrangement with such a connecting element.
  • Linear power distribution arrangements are used in particular for lighting systems in buildings in order to lay cables for supplying devices with energy and / or signals in a cost-effective and visually appealing manner.
  • Signals are understood to mean both the transmission of general signals, such as control signals, and the transmission of data, such as measurement or information data.
  • the installation location of the devices can be chosen flexibly along a housing body of the power distribution arrangement and easily varied. The devices can thus be contacted in a simple manner with a connecting element in an electrically conductive manner with the conductors of a linear supply unit at a variably definable installation location.
  • Such power distribution arrangements have the advantage that the devices are carried on the housing body in an electrically contacting manner and also mechanically at the same time.
  • linear supply units are used in the linear power distribution arrangements and thus also in the context of this invention, which are stored in a housing body.
  • These supply units can be designed, for example, as current-carrying profiles, but also as ribbon cables.
  • the current-carrying profiles are formed from a base body extending in the longitudinal direction, which has a number of chambers in which individual conductors are arranged.
  • These current-carrying profiles are generally rigid and have a limited length due to the manufacturing process.
  • connecting elements can also be used, depending on the length of the ribbon cable.
  • linear supply units Since these linear supply units are usually laid over several meters, they are particularly susceptible to linear expansion of the material due to high temperatures or general temperature fluctuations in the environment. In practice, this regularly results in the linear supply units building up a pressure on the connecting elements or end caps at the ends of the supply units during expansion, which either results in an evasive movement of the supply units transversely to the direction of linear extension or in a displacement of the connecting elements or end caps . This can make contacting the end devices more difficult or even interrupt it. Conversely, if the supply units are shortened by lowering the room temperature, the contact between the conductors of the supply unit and the connecting elements may be interrupted, so that the subsequent supply units can no longer be supplied with signals or power.
  • the object of the present invention is therefore to provide a connecting element and linear supply unit with such a connecting element, which enables particularly reliable contact even when the materials expand under heat.
  • the invention is based on the idea that the conductors in particular have a particularly high coefficient of linear expansion due to their choice of material, which means that the conductors expand or contract particularly strongly when there are changes in temperature. If the conductors are largely floating in the chambers of the linear supply units, this means that the linear expansion of the conductors occurs in particular at the ends of the supply units, i.e. in contact with the connecting elements, and is relevant there. Based on these considerations, it was recognized that good contacting can be reliably ensured, especially if the conductor ends are fixed in the contact zones of the connecting elements, regardless of the extent, and the contact zones themselves follow the change in length of the conductors, i.e. are movably arranged in the connecting element .
  • a flexible bridge element which absorbs the movement of the contact zones in the connecting element and an electrically conductive connection between the two conductors and thus guaranteed between the two supply units.
  • the two contact zones are advantageously designed as contact tongues which grip around and clamp the conductor ends.
  • this is conical in the area of the opening, whereby the conductor ends are automatically guided during contacting.
  • the thermal expansion of the conductors takes place due to the linear arrangement of the system essentially in the linear direction of extent of the supply units.
  • the contact zones are also designed in a preferred embodiment in such a way that they can move along a guide rail in this linear direction of extent.
  • this possibility of movement of the contact zones in a linear direction by means of corresponding projections or delimitations in the Area of the guide rail are limited in order to prevent the contact elements from falling out or from being pushed out due to the expansion.
  • this is designed in a special embodiment as a spring element, spring contact pin, flexible wire and / or flexible, conductive strip or band. It is also possible here for different bridge elements to be used within a connecting element or for a bridge element to consist of several of the same or different sub-elements mentioned above.
  • the contact zones are arranged offset to one another in a particularly advantageous embodiment.
  • the transverse direction of the connecting element i.e. in the direction of the other chambers or other possible contact elements
  • the contact zones are perpendicular to the transverse direction and the linear direction of extent, namely in the vertical direction and thus practically arranged on two levels.
  • the contact zones can be arranged so close to one another in the linear direction that they can be guided along one another when they expand.
  • the expansion of the conductors is preferably absorbed by rotating the contact zones around a common pivot point.
  • the advantages achieved with the invention are in particular that the linear expansion of the conductors can always be absorbed by the movably arranged contact zones and the use of a flexible bridge element.
  • the contact zones absorb the change in length and move accordingly, which is why reliable contact between the conductor ends and the contact zones always remains.
  • the connecting element 1 according to Fig. 1 comprises a base body 2 made of a base material with a number of chambers 4 for receiving contact elements 6.
  • the geometry, the arrangement and the number of chambers are adapted to the design of the linear supply units (not shown) that are to be electrically connected by the connecting element 1 . Therefore, depending on the supply units, the arrangement of the chambers in one or more levels or offset from one another is also conceivable.
  • a contact element 6 which has two contact zones 8a, 8b designed as contact tongues.
  • the contact zones 8a, 8b lie in one plane and are arranged in the area of the end faces 10a, 10b of the connecting element 1 in such a way that a conductor (not shown) introduced into the chamber 4 from the end face 10a, 10b is received and clamped by the contact zones and thus a contact between the conductor and the contact zone is established.
  • the contact tongues lie in the connecting element 1 in guide rails 12a, 12b, and can move along these in the linear direction (L).
  • the guide rails 12a, 12b also have delimiting elements 14 in the form of projections in order to limit the linear movement of the contact zones 8a, 8b and to prevent them from falling out or being pushed out.
  • the contact zones 8a, 8b are connected to a bridge element 16 in an electrically conductive manner.
  • This bridge element 16 is designed to be flexible in order to intercept the movement of the contact zones 8a, 8b.
  • the bridge element 16 in the embodiment according to Fig. 1 is the bridge element 16 as a conductive strip 18, in the embodiment according to Fig. 2 as a spring contact pin 20 and in the exemplary embodiment according to Fig. 3 designed as a spring element 22.
  • FIG Fig. 4 An alternative contact element 6 for a connecting element 1 is shown in FIG Fig. 4 indicated, in which the contact zones 8a, 8b are arranged offset to one another.
  • This contact element 6 is mounted rotatably about a pivot point 24.
  • the conductor ends 26a, 26b lie in the contact zones 8a, 8b.
  • the contact zones 8a, 8b have a curvature in the contact surface, the radius of which is adapted to the possible rotational movement. If the conductor 26a, 26b expands due to temperature fluctuations, this leads to a force transmission from the conductor ends 26a, 26b to the contact surfaces, as a result of which the contact element 6 rotates about the pivot point 24 as compensation.
  • the radii of the contact surfaces ensure, on the one hand, the power transmission, but on the other hand also ensure reliable contact between the conductors 26a, 26b in the contact zones 8a, 8b even if the contact element rotates due to the change in length of the conductors 26a, 26b.
  • FIG Fig. 5 A second alternative contact element 6 is shown in FIG Fig. 5 shown.
  • the bridge element 16 is designed as a line 28 which is pressed at the ends for better contact with the conductors 26a, 26b.
  • the ends of the line 28 or the bridge element 16 serve as contact zones 8a, 8b.
  • the contact pressure required for reliable contacting even with changes in length of the conductors 26a, 26b is generated by a spiral spring 30 which is tensioned between the ends of the line 28 and presses the line 28 against the conductors 26a, 26b.
  • All these contact elements 6 are specifically designed so that the change in length of the conductors 26a, 26b is compensated for by a movement of the contact zones 8a, 8b and thus possible mechanical stresses and electrical contacting problems are avoided.

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  • Thermally Actuated Switches (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

Ein Verbindungselement zum elektrischen Verbinden von zwei Versorgungseinheiten mit jeweils einer Anzahl von Leitern einer lineare Stromverteileranordnungen, wobei das Verbindungselement eine Anzahl von Kontaktelementen aufweist, die jeweils zwei Kontaktzonen umfassen, die miteinander über ein Brückenelement elektrisch leitend verbunden sind und dazu ausgebildet sind jeweils einen Leiter der beiden Grundkörper kontaktierend aufzunehmen soll eine besonders zuverlässige Kontaktierung auch bei Wärmeausdehnung der Materialien ermöglichen. Dazu sind die Kontaktzonen eines Kontaktelementes relativ zueinander beweglich, insbesondere verschiebbar oder verdrehbar, ausgebildet.A connecting element for electrically connecting two supply units, each with a number of conductors of a linear current distribution arrangement, wherein the connecting element has a number of contact elements, each of which comprises two contact zones which are electrically conductively connected to one another via a bridge element and are designed for this purpose in each case a conductor of to accommodate both base bodies in contact is intended to enable particularly reliable contacting even with thermal expansion of the materials. For this purpose, the contact zones of a contact element are designed to be movable, in particular displaceable or rotatable, relative to one another.

Description

Die Erfindung betrifft ein Verbindungselement zum elektrischen Verbinden von zwei Versorgungseinheiten mit jeweils einer Anzahl von Leitern einer lineare Stromverteileranordnungen, wobei das Verbindungselement eine Anzahl von Kontaktelementen aufweist, die jeweils zwei Kontaktzonen umfassen, die miteinander über ein Brückenelement elektrisch leitend verbunden sind und dazu ausgebildet sind jeweils einen Leiter der beiden Grundkörper kontaktierend aufzunehmen. Weiterhin betrifft die Erfindung eine lineare Versorgungseinheit für eine lineare Stromverteileranordnung mit einem solchen Verbindungselement.The invention relates to a connecting element for electrically connecting two supply units, each with a number of conductors of a linear power distribution arrangement, the connecting element having a number of contact elements, each comprising two contact zones, which are connected to one another in an electrically conductive manner via a bridge element and are each designed for this purpose to receive a conductor of the two base bodies in a contacting manner. The invention also relates to a linear supply unit for a linear power distribution arrangement with such a connecting element.

Lineare Stromverteileranordnungen werden insbesondere für Beleuchtungssysteme in Gebäuden eingesetzt, um Leitungen zur Versorgung von Geräten mit Energie und/oder Signalen kostengünstig und optisch ansprechend zu verlegen. Unter Signalen wird dabei sowohl die Übertragung von allgemeinen Signalen, wie beispielsweise Steuersignalen, als auch die Übertragung von Daten, wie beispielsweise Mess- oder Informationsdaten, verstanden. Der Einbauort der Geräte kann flexibel entlang eines Gehäusekörpers der Stromverteileranordnung gewählt und leicht variiert werden. Die Geräte können damit auf einfache Weise mit einem Verbindungselement elektrisch leitend mit den Leitern einer linearen Versorgungseinheit an einem variabel festlegbaren Einbauort kontaktiert werden. Solche Stromverteileranordnungen haben den Vorteil, dass die Geräte sowohl elektrisch kontaktierend und auch zu gleich mechanisch an dem Gehäusekörper getragen werden.Linear power distribution arrangements are used in particular for lighting systems in buildings in order to lay cables for supplying devices with energy and / or signals in a cost-effective and visually appealing manner. Signals are understood to mean both the transmission of general signals, such as control signals, and the transmission of data, such as measurement or information data. The installation location of the devices can be chosen flexibly along a housing body of the power distribution arrangement and easily varied. The devices can thus be contacted in a simple manner with a connecting element in an electrically conductive manner with the conductors of a linear supply unit at a variably definable installation location. Such power distribution arrangements have the advantage that the devices are carried on the housing body in an electrically contacting manner and also mechanically at the same time.

Zur Verteilung bzw. Weiterleitung der Energie oder Signale werden in den linearen Stromverteileranordnungen und so auch im Rahmen dieser Erfindung lineare Versorgungseinheiten verwendet, die in einem Gehäusekörper gelagert werden. Diese Versorgungseinheiten können dabei beispielsweise als Stromführungsprofile aber auch als Flachbandkabel ausgebildet sein. Die Stromführungsprofile sind dabei aus einem sich in Längsrichtung erstreckenden Grundkörper ausgebildet, der eine Anzahl von Kammern aufweist, in denen einzelne Leiter angeordnet sind. Diese Stromführungsprofile sind in der Regel starr ausgebildet und weisen herstellungsbedingt eine begrenzte Länge auf. Für längere Stromverteileranordnungen, wie sie beispielsweise in größeren Werks- oder Lagerhallen eingesetzt werden, sind daher üblicherweise mehrere Stromführungsprofile nötig, die dann über ein Verbindungselement sowohl mechanisch als auch elektrisch miteinander verbunden werden. Auch bei der Verwendung von Flachbandkabeln können je nach Länge des Flachbandkabels Verbindungselemente eingesetzt werden.In order to distribute or forward the energy or signals, linear supply units are used in the linear power distribution arrangements and thus also in the context of this invention, which are stored in a housing body. These supply units can be designed, for example, as current-carrying profiles, but also as ribbon cables. The current-carrying profiles are formed from a base body extending in the longitudinal direction, which has a number of chambers in which individual conductors are arranged. These current-carrying profiles are generally rigid and have a limited length due to the manufacturing process. For longer power distribution arrangements, such as those used, for example, in larger factories or warehouses, several power conduction profiles are therefore usually necessary, which are then connected to one another both mechanically and electrically via a connecting element. When using ribbon cables, connecting elements can also be used, depending on the length of the ribbon cable.

Da diese linearen Versorgungseinheiten meist über mehrere Meter verlegt werden, sind diese besonders anfällig für Längenausdehnungen des Materials aufgrund von hohen Temperaturen bzw. allgemein Temperaturschwankungen in der Umgebung. Dies führt in der Praxis regelmäßig dazu, dass die linearen Versorgungseinheiten bei der Ausdehnung einen Druck auf die Verbindungselemente oder Endkappen an den Enden der Versorgungseinheiten aufbauen, welcher entweder in einer Ausweichbewegung der Versorgungseinheiten quer zur linearen Erstreckungsrichtung oder in einer Verschiebung der Verbindungselemente bzw. Endkappen führt. Dies kann eine Kontaktierung der Endgeräte erschweren oder sogar unterbrechen. Umgekehrt kann es bei einer Verkürzung der Versorgungseinheiten durch Absenkung der Raumtemperatur dazu kommen, dass die Kontaktierung der Leiter der Versorgungseinheit mit den Verbindungselementen unterbrochen wird, sodass die nachfolgenden Versorgungseinheiten nicht mehr mit Signalen oder Strom versorgt werden können.Since these linear supply units are usually laid over several meters, they are particularly susceptible to linear expansion of the material due to high temperatures or general temperature fluctuations in the environment. In practice, this regularly results in the linear supply units building up a pressure on the connecting elements or end caps at the ends of the supply units during expansion, which either results in an evasive movement of the supply units transversely to the direction of linear extension or in a displacement of the connecting elements or end caps . This can make contacting the end devices more difficult or even interrupt it. Conversely, if the supply units are shortened by lowering the room temperature, the contact between the conductors of the supply unit and the connecting elements may be interrupted, so that the subsequent supply units can no longer be supplied with signals or power.

Die Aufgabe der vorliegenden Erfindung besteht daher darin ein Verbindungselement und lineare Versorgungseinheit mit einem solchen Verbindungselement anzugeben, die eine besonders zuverlässige Kontaktierung auch bei Wärmeausdehnung der Materialien ermöglicht.The object of the present invention is therefore to provide a connecting element and linear supply unit with such a connecting element, which enables particularly reliable contact even when the materials expand under heat.

Die Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des unabhängigen Anspruchs 1 gelöst.According to the invention, the object is achieved by the characterizing features of independent claim 1.

Die Erfindung geht von der Überlegung aus, dass insbesondere die Leiter aufgrund ihrer Materialwahl einen besonders hohen Längenausdehnungskoeffizienten aufweist, was bedeutet, dass sich die Leiter besonders stark bei Temperaturänderungen ausdehnen bzw. zusammenziehen. Wenn die Leiter in den Kammern der linearen Versorgungseinheiten weitestgehend schwimmend gelagert sind, bedeutet dies, dass die Längenausdehnung der Leiter insbesondere an den Enden der Versorgungseinheiten, also im Kontakt mit den Verbindungselementen auftritt und dort relevant ist. Ausgehend von diesen Überlegungen wurde erkannt, dass eine gute Kontaktierung besonders dann zuverlässig gewährleistet werden kann, wenn die Leiterenden in den Kontaktzonen der Verbindungselemente unabhängig von der Ausdehnung fest angeordnet sind und die Kontaktzonen selbst die Längenänderung der Leiter mitgehen, somit also beweglich im Verbindungselement angeordnet sind. Zwischen zwei Kontaktzonen eines Kontaktelementes, also einer Kontaktzone mit einem Leiter einer ersten Versorgungseinheit und einer zweiten Kontaktzone mit einem zweiten Leiter einer zweiten Versorgungseinheit ist ein flexibles Brückenelement vorgesehen, welches die Bewegung der Kontaktzonen im Verbindungselement auffängt und eine elektrisch leitende Verbindung zwischen den beiden Leitern und somit zwischen den beiden Versorgungseinheiten gewährleistet.The invention is based on the idea that the conductors in particular have a particularly high coefficient of linear expansion due to their choice of material, which means that the conductors expand or contract particularly strongly when there are changes in temperature. If the conductors are largely floating in the chambers of the linear supply units, this means that the linear expansion of the conductors occurs in particular at the ends of the supply units, i.e. in contact with the connecting elements, and is relevant there. Based on these considerations, it was recognized that good contacting can be reliably ensured, especially if the conductor ends are fixed in the contact zones of the connecting elements, regardless of the extent, and the contact zones themselves follow the change in length of the conductors, i.e. are movably arranged in the connecting element . Between two contact zones of a contact element, i.e. a contact zone with a conductor of a first supply unit and a second contact zone with a second conductor of a second supply unit, a flexible bridge element is provided which absorbs the movement of the contact zones in the connecting element and an electrically conductive connection between the two conductors and thus guaranteed between the two supply units.

Für eine besonders einfache und zuverlässige Kontaktierung sind die beiden Kontaktzonen vorteilhaft als Kontaktzungen ausgebildet, die die Leiterenden umgreifen und einklemmen. Für eine besonders leichte Einführung der Leiterenden in die Kontaktzunge ist diese im Bereich der Öffnung konisch ausgebildet, wodurch die Leiterenden bei der Kontaktierung automatisch geführt werden.For a particularly simple and reliable contact, the two contact zones are advantageously designed as contact tongues which grip around and clamp the conductor ends. For a particularly easy introduction of the conductor ends into the contact tongue, this is conical in the area of the opening, whereby the conductor ends are automatically guided during contacting.

Die Wärmeausdehnung der Leiter erfolgt aufgrund der linearen Anordnung des Systems im Wesentlichen in linearer Erstreckungsrichtung der Versorgungseinheiten. Um diese Längenausdehnung bestmöglich abzufangen, sind auch die Kontaktzonen in bevorzugter Ausgestaltung derart ausgebildet, dass sie sich entlang einer Führungsschiene in dieser linearen Erstreckungsrichtung bewegen können. In vorteilhafter Ausgestaltung kann diese Bewegungsmöglichkeit der Kontaktzonen in linearer Richtung durch entsprechende Vorsprünge oder Begrenzungen im Bereich der Führungsschiene begrenzt werden, um ein Herausfallen oder ein durch die Ausdehnung bedingtes Herausdrücken der Kontaktelemente zu vermeiden.The thermal expansion of the conductors takes place due to the linear arrangement of the system essentially in the linear direction of extent of the supply units. In order to absorb this linear expansion in the best possible way, the contact zones are also designed in a preferred embodiment in such a way that they can move along a guide rail in this linear direction of extent. In an advantageous embodiment, this possibility of movement of the contact zones in a linear direction by means of corresponding projections or delimitations in the Area of the guide rail are limited in order to prevent the contact elements from falling out or from being pushed out due to the expansion.

Um die Bewegung der Kontaktzonen durch das Brückenelement besonders leicht und zuverlässig ausgleichen zu können, ist dieses in besonderer Ausgestaltung als Federelement, Federkontaktstift, flexibler Draht und/oder flexibler, leitender Streifen bzw. Band ausgebildet. Dabei ist es auch möglich, dass innerhalb eines Verbindungselementes verschiedene Brückenelemente eingesetzt werden oder ein Brückenelement aus mehreren oben genannten gleichen oder auch unterschiedlichen Teilelementen besteht.In order to be able to compensate for the movement of the contact zones by the bridge element particularly easily and reliably, this is designed in a special embodiment as a spring element, spring contact pin, flexible wire and / or flexible, conductive strip or band. It is also possible here for different bridge elements to be used within a connecting element or for a bridge element to consist of several of the same or different sub-elements mentioned above.

Für ein zumindest in linearer Ausbreitungsrichtung möglichst kompaktes Verbindungselement, sind die Kontaktzonen in besonders vorteilhafter Ausgestaltung versetzt zueinander angeordnet. Je nach Platzbedarf ist dabei prinzipiell auch ein Versatz in Querrichtung des Verbindungselement, also in Richtung der anderen Kammern bzw. anderen möglichen Kontaktelementen, es ist aber auch insbesondere vorgesehen, dass die Kontaktzonen senkrecht zu der Querrichtung und der linearen Erstreckungsrichtung, nämlich in vertikaler Richtung und somit praktisch auf zwei Ebenen, angeordnet sind. In diesem Fall ist es nämlich möglich, dass die Kontaktzonen in linearer Richtung so nah aneinander angeordnet werden können, dass sie bei Ausdehnung übereinander entlanggeführt werden können.For a connection element that is as compact as possible, at least in the linear direction of propagation, the contact zones are arranged offset to one another in a particularly advantageous embodiment. Depending on the space requirement, there is in principle also an offset in the transverse direction of the connecting element, i.e. in the direction of the other chambers or other possible contact elements, but it is also particularly provided that the contact zones are perpendicular to the transverse direction and the linear direction of extent, namely in the vertical direction and thus practically arranged on two levels. In this case it is namely possible that the contact zones can be arranged so close to one another in the linear direction that they can be guided along one another when they expand.

Bei einer Anordnung der beiden Kontaktzonen versetzt zueinander wird die Ausdehnung der Leiter bevorzugt durch eine Verdrehung der Kontaktzonen um einen gemeinsamen Drehpunkt abgefangen.If the two contact zones are arranged offset from one another, the expansion of the conductors is preferably absorbed by rotating the contact zones around a common pivot point.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, dass durch die beweglich angeordneten Kontaktzonen und die Verwendung eines flexiblen Brückenelements die Längenausdehnung der Leiter stets abgefangen werden kann. Die Kontaktzonen nehmen die Längenänderung auf und verschieben sich entsprechend, weshalb stets ein zuverlässiger Kontakt zwischen den Leiterenden und den Kontaktzonen bestehen bleibt.The advantages achieved with the invention are in particular that the linear expansion of the conductors can always be absorbed by the movably arranged contact zones and the use of a flexible bridge element. The contact zones absorb the change in length and move accordingly, which is why reliable contact between the conductor ends and the contact zones always remains.

Die Erfindung wird nachfolgend anhand einer Zeichnung näher erläutert. Dabei zeigen:

Fig. 1
ein Querschnitt durch ein Verbindungselement mit einem elektrisch leitenden Streifen als Brückenelement,
Fig. 2
ein Kontaktelement mit einem Federkontaktstift als Brückenelement,
Fig. 3
ein Querschnitt durch ein Verbindungselement mit einem Federelement als Brückenelement,
Fig. 4
ein Querschnitt durch ein Verbindungselement mit vertikal versetzten Kontaktzonen,
Fig. 5
ein Querschnitt durch ein Verbindungselement mit einer Biegefeder
The invention is explained in more detail below with reference to a drawing. Show:
Fig. 1
a cross section through a connecting element with an electrically conductive strip as a bridge element,
Fig. 2
a contact element with a spring contact pin as a bridge element,
Fig. 3
a cross section through a connecting element with a spring element as a bridge element,
Fig. 4
a cross section through a connecting element with vertically offset contact zones,
Fig. 5
a cross section through a connecting element with a spiral spring

Gleiche Merkmale sind in allen Figuren mit denselben Bezugszeichen versehen.The same features are provided with the same reference symbols in all figures.

Das Verbindungselement 1 nach Fig. 1 umfasst einen Grundkörper 2 aus einem Basismaterial mit einer Anzahl von Kammern 4 zur Aufnahme von Kontaktelementen 6. Dabei ist die Geometrie, die Anordnung und die Anzahl der Kammern an die Ausführung der nicht dargestellten linearen Versorgungseinheiten angepasst, die durch das Verbindungselement 1 elektrisch verbunden werden sollen. Daher ist je nach Versorgungseinheiten auch die Anordnung der Kammern in einer oder mehreren Ebenen bzw. versetzt zueinander denkbar.The connecting element 1 according to Fig. 1 comprises a base body 2 made of a base material with a number of chambers 4 for receiving contact elements 6. The geometry, the arrangement and the number of chambers are adapted to the design of the linear supply units (not shown) that are to be electrically connected by the connecting element 1 . Therefore, depending on the supply units, the arrangement of the chambers in one or more levels or offset from one another is also conceivable.

Im Querschnitt des Verbindungselements 1 nach Fig. 1 ist ein Kontaktelement 6 dargestellt, welches zwei als Kontaktzungen ausgebildete Kontaktzonen 8a, 8b aufweist. Die Kontaktzonen 8a, 8b liegen dabei in einer Ebene und sind im Bereich der Stirnflächen 10a, 10b des Verbindungselements 1 derart angeordnet, dass ein von der Stirnfläche 10a, 10b in die Kammer 4 eingeführter, nicht dargestellter Leiter von der Kontaktzonen aufgenommen und geklemmt wird und somit ein Kontakt zwischen dem Leiter und der Kontaktzone hergestellt wird.In the cross section of the connecting element 1 according to Fig. 1 a contact element 6 is shown which has two contact zones 8a, 8b designed as contact tongues. The contact zones 8a, 8b lie in one plane and are arranged in the area of the end faces 10a, 10b of the connecting element 1 in such a way that a conductor (not shown) introduced into the chamber 4 from the end face 10a, 10b is received and clamped by the contact zones and thus a contact between the conductor and the contact zone is established.

Die Kontaktzungen liegen im Verbindungselement 1 in Führungsschienen 12a, 12b, und können sich entlang dieser in linearer Richtung (L) bewegen. Die Führungsschienen 12a, 12b weisen darüber hinaus Begrenzungselemente 14 in Form von Vorsprüngen auf, um die lineare Bewegung der Kontaktzonen 8a, 8b zu begrenzen und ein Herausfallen oder Herausdrücken zu verhindern.The contact tongues lie in the connecting element 1 in guide rails 12a, 12b, and can move along these in the linear direction (L). The guide rails 12a, 12b also have delimiting elements 14 in the form of projections in order to limit the linear movement of the contact zones 8a, 8b and to prevent them from falling out or being pushed out.

Die Kontaktzonen 8a, 8b sind elektrisch leitend mit einem Brückenelement 16 verbunden. Dieses Brückenelement 16 ist flexibel ausgestaltet, um die Bewegung der Kontaktzonen 8a, 8b abzufangen. Im Ausführungsbeispiel nach Fig. 1 ist das Brückenelement 16 als leitender Streifen 18, im Ausführungsbeispiel nach Fig. 2 als Federkontaktstift 20 und im Ausführungsbeispiel nach Fig. 3 als Federelement 22 ausgebildet.The contact zones 8a, 8b are connected to a bridge element 16 in an electrically conductive manner. This bridge element 16 is designed to be flexible in order to intercept the movement of the contact zones 8a, 8b. In the embodiment according to Fig. 1 is the bridge element 16 as a conductive strip 18, in the embodiment according to Fig. 2 as a spring contact pin 20 and in the exemplary embodiment according to Fig. 3 designed as a spring element 22.

Ein alternatives Kontaktelement 6 für ein Verbindungselement 1 ist in Fig. 4 angegeben, bei dem die Kontaktzonen 8a, 8b versetzt zueinander angeordnet sind. Dieses Kontaktelement 6 ist drehbar um einen Drehpunkt 24 gelagert. Die Leiterenden 26a, 26b liegen in den Kontaktzonen 8a, 8b. Die Kontaktzonen 8a, 8b weisen dabei in der Kontaktfläche eine Krümmung auf, deren Radius an die mögliche Drehbewegung angepasst. Dehnt sich der Leiter 26a, 26b aufgrund von Temperaturschwankungen aus, führt dies zu einer Kraftübertragung von den Leiterenden 26a, 26b auf die Kontaktflächen, wodurch sich das Kontaktelement 6 als Ausgleich um den Drehpunkt 24 dreht. Die Radien der Kontaktflächen sorgen dabei einerseits für die Kraftübertragung, andererseits aber auch für einen sicheren Kontakt der Leiter 26a, 26b in den Kontaktzonen 8a, 8b auch wenn sich das Kontaktelement aufgrund der Längenänderung der Leiter 26a, 26b verdreht.An alternative contact element 6 for a connecting element 1 is shown in FIG Fig. 4 indicated, in which the contact zones 8a, 8b are arranged offset to one another. This contact element 6 is mounted rotatably about a pivot point 24. The conductor ends 26a, 26b lie in the contact zones 8a, 8b. The contact zones 8a, 8b have a curvature in the contact surface, the radius of which is adapted to the possible rotational movement. If the conductor 26a, 26b expands due to temperature fluctuations, this leads to a force transmission from the conductor ends 26a, 26b to the contact surfaces, as a result of which the contact element 6 rotates about the pivot point 24 as compensation. The radii of the contact surfaces ensure, on the one hand, the power transmission, but on the other hand also ensure reliable contact between the conductors 26a, 26b in the contact zones 8a, 8b even if the contact element rotates due to the change in length of the conductors 26a, 26b.

Ein zweites alternatives Kontaktelement 6 ist in Fig. 5 dargestellt. Hier ist das Brückenelement 16 als Leitung 28 ausgebildet, die für einen besseren Kontakt mit den Leitern 26a, 26b an den Enden gepresst ist. Die Enden der Leitung 28 bzw. des Brückenelements 16 dienen dabei als Kontaktzonen 8a, 8b. Der benötigte Kontaktdruck für eine zuverlässige Kontaktierung auch bei Längenänderungen der Leiter 26a, 26b wird durch eine Biegefeder 30 erzeugt, die zwischen den Enden der Leitung 28 gespannt ist und die Leitung 28 gegen die Leiter 26a, 26b drückt.A second alternative contact element 6 is shown in FIG Fig. 5 shown. Here the bridge element 16 is designed as a line 28 which is pressed at the ends for better contact with the conductors 26a, 26b. The ends of the line 28 or the bridge element 16 serve as contact zones 8a, 8b. The contact pressure required for reliable contacting even with changes in length of the conductors 26a, 26b is generated by a spiral spring 30 which is tensioned between the ends of the line 28 and presses the line 28 against the conductors 26a, 26b.

All diese Kontaktelemente 6 sind gezielt dazu ausgelegt, dass die Längenänderung der Leiter 26a, 26b durch eine Bewegung der Kontaktzonen 8a, 8b ausgeglichen wird und so mögliche mechanische Spannungen und elektrische Kontaktierungsprobleme vermieden werden.All these contact elements 6 are specifically designed so that the change in length of the conductors 26a, 26b is compensated for by a movement of the contact zones 8a, 8b and thus possible mechanical stresses and electrical contacting problems are avoided.

BezugszeichenlisteList of reference symbols

11
VerbindungselementConnecting element
22
GrundkörperBase body
44th
KammernChambers
66th
KontaktelementContact element
8a, 8b8a, 8b
KontaktzoneContact zone
10a, 10b10a, 10b
StirnflächeFace
12a, 12b12a, 12b
FührungsschieneGuide rail
1414th
BegrenzungselementeDelimitation elements
1616
BrückenelementBridge element
1818th
LeitungsstreifenConductor strip
2020th
FederkontaktstiftSpring contact pin
2222nd
FederelementSpring element
2424
Drehpunktpivot point
26a, 26b26a, 26b
Leiterladder
2828
Leitungmanagement
3030th
BiegefederSpiral spring
LL.
Lineare ErstreckungsrichtungLinear extension direction
QQ
QuerrichtungTransverse direction
VV
Vertikale RichtungVertical direction

Claims (9)

Verbindungselement (1) zum elektrischen Verbinden von zwei Versorgungseinheiten mit jeweils einer Anzahl von Leitern einer lineare Stromverteileranordnungen, wobei das Verbindungselement (1) eine Anzahl von Kontaktelementen (6) aufweist, die jeweils zwei Kontaktzonen (8a, 8b) umfassen, die miteinander über ein Brückenelement (16) elektrisch leitend verbunden sind und dazu ausgebildet sind jeweils einen Leiter der beiden Versorgungseinheiten kontaktierend aufzunehmen,
dadurch gekennzeichnet,
dass die Kontaktzonen (8a, 8b) eines Kontaktelementes (6) relativ zueinander beweglich, insbesondere verschiebbar oder verdrehbar, ausgebildet sind.Connecting element (1) for the electrical connection of two supply units, each with a number of conductors of a linear power distribution arrangement, the connecting element (1) having a number of contact elements (6) each comprising two contact zones (8a, 8b) which are connected to one another via a Bridge element (16) are connected in an electrically conductive manner and are designed to each receive a conductor of the two supply units in a contacting manner,
characterized,
that the contact zones (8a, 8b) of a contact element (6) are designed to be movable, in particular displaceable or rotatable, relative to one another. Verbindungselement (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass die beiden Kontaktzonen (8a, 8b) als Kontaktzungen ausgebildet sind.Connecting element (1) according to claim 1,
characterized,
that the two contact zones (8a, 8b) are designed as contact tongues. Verbindungselement (1) nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die beiden Kontaktzonen (8a, 8b) entlang einer gemeinsamen oder jeweils einer linearen Führungsschiene (12a, 12b) in Erstreckungsrichtung der linearen Versorgungseinheit verschiebbar ausgebildet sind.Connecting element (1) according to claim 1 or 2,
characterized,
that the two contact zones (8a, 8b) are designed to be displaceable along a common or in each case a linear guide rail (12a, 12b) in the direction of extent of the linear supply unit. Verbindungselement (1) nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass das Brückenelement (16) als ein Federelement (22) ausgebildet ist.Connecting element (1) according to one of claims 1 to 3,
characterized,
that the bridge element (16) is designed as a spring element (22). Verbindungselement (1) nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass das Brückenelement (16) als ein Federkontaktstift (20) ausgebildet ist.Connecting element (1) according to one of claims 1 to 3,
characterized,
that the bridge element (16) is designed as a spring contact pin (20). Verbindungselement (1) nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass das Brückenelement (16) als ein flexibler Draht oder ein flexibler Streifen (18) ausgebildet ist.Connecting element (1) according to one of claims 1 to 3,
characterized,
that the bridge element (16) is designed as a flexible wire or a flexible strip (18). Verbindungselement (1) nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
dass die Kontaktzonen (8a, 8b) senkrecht zur Erstreckungsrichtung der linearen Versorgungseinheit versetzt zueinander angeordnet sind.Connecting element (1) according to one of claims 1 to 6,
characterized,
that the contact zones (8a, 8b) are arranged offset from one another perpendicular to the direction in which the linear supply unit extends. Verbindungselement (1) nach Anspruch 7,
dadurch gekennzeichnet,
dass die Kontaktzonen (8a, 8b) um einen gemeinsamen Drehpunkt (24) verdrehbar ausgebildet sind.Connecting element (1) according to claim 7,
characterized,
that the contact zones (8a, 8b) are designed to be rotatable about a common pivot point (24). Lineare Versorgungseinheit mit zwei Versorgungseinheiten mit jeweils einer Anzahl von Leitern und einem Verbindungselement (1) zum elektrisch leitenden verbinden der Leiter beider Versorgungseinheiten,
gekennzeichnet durch
ein Verbindungselement nach einem der Ansprüche 1 bis 8.Linear supply unit with two supply units each with a number of conductors and a connecting element (1) for the electrically conductive connection of the conductors of both supply units,
marked by
a connecting element according to any one of claims 1 to 8.
EP21182474.3A 2020-06-30 2021-06-29 Connecting element with a flexible contact element Withdrawn EP3934029A1 (en)

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Application Number Priority Date Filing Date Title
DE102020117240.0A DE102020117240B4 (en) 2020-06-30 2020-06-30 Connecting element with a flexible contact element

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050124195A1 (en) * 2003-05-14 2005-06-09 Mccoy Phillip A. Selectable receptacle
JP2012009260A (en) * 2010-06-24 2012-01-12 Panasonic Electric Works Co Ltd Connector for wiring ducts
DE102010032383A1 (en) * 2010-07-27 2012-02-02 Wago Verwaltungsgesellschaft Mbh Bus bar connector for electrical conductive connection of lines in respective bus bars for supplying electricity to lighting system in building, has connector housing including length adjustment section connected with housing portion
WO2014027060A1 (en) * 2012-08-17 2014-02-20 Wago Verwaltungsgesellschaft Mbh Electrical connection assembly and components thereof
DE202016104790U1 (en) * 2015-09-03 2016-12-06 Wago Verwaltungsgesellschaft Mbh Connectors
DE102016114070B3 (en) * 2016-07-29 2017-11-30 Wago Verwaltungsgesellschaft Mbh Busbar connector and set of two complementary busbar connectors and metal troughs, each with a current-carrying profile incorporated therein
EP3477774A1 (en) * 2017-10-27 2019-05-01 Wago Verwaltungsgesellschaft mbH Current guiding profile connector and current guiding arrangement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050124195A1 (en) * 2003-05-14 2005-06-09 Mccoy Phillip A. Selectable receptacle
JP2012009260A (en) * 2010-06-24 2012-01-12 Panasonic Electric Works Co Ltd Connector for wiring ducts
DE102010032383A1 (en) * 2010-07-27 2012-02-02 Wago Verwaltungsgesellschaft Mbh Bus bar connector for electrical conductive connection of lines in respective bus bars for supplying electricity to lighting system in building, has connector housing including length adjustment section connected with housing portion
WO2014027060A1 (en) * 2012-08-17 2014-02-20 Wago Verwaltungsgesellschaft Mbh Electrical connection assembly and components thereof
DE202016104790U1 (en) * 2015-09-03 2016-12-06 Wago Verwaltungsgesellschaft Mbh Connectors
DE102016114070B3 (en) * 2016-07-29 2017-11-30 Wago Verwaltungsgesellschaft Mbh Busbar connector and set of two complementary busbar connectors and metal troughs, each with a current-carrying profile incorporated therein
EP3477774A1 (en) * 2017-10-27 2019-05-01 Wago Verwaltungsgesellschaft mbH Current guiding profile connector and current guiding arrangement

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Publication number Publication date
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DE102020117240A1 (en) 2021-12-30

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