EP2416457A1 - Method for electrically contacting wires - Google Patents

Method for electrically contacting wires Download PDF

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Publication number
EP2416457A1
EP2416457A1 EP11168870A EP11168870A EP2416457A1 EP 2416457 A1 EP2416457 A1 EP 2416457A1 EP 11168870 A EP11168870 A EP 11168870A EP 11168870 A EP11168870 A EP 11168870A EP 2416457 A1 EP2416457 A1 EP 2416457A1
Authority
EP
European Patent Office
Prior art keywords
wires
contact element
connection
sleeve
wire
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.)
Granted
Application number
EP11168870A
Other languages
German (de)
French (fr)
Other versions
EP2416457B1 (en
Inventor
Reiner Ramsayer
Ingo Kesel
Jens Koenig
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Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
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Publication of EP2416457A1 publication Critical patent/EP2416457A1/en
Application granted granted Critical
Publication of EP2416457B1 publication Critical patent/EP2416457B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/187—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping combined with soldering or welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0228—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections without preliminary removing of insulation before soldering or welding
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • H01R4/203—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve having an uneven wire-receiving surface to improve the contact

Definitions

  • the invention relates to a method for electrical contacting of wires according to the preamble of claim 1.
  • Such a known method is used for example for the electrical contacting of wire ends in generators or electric motors at the armature or stator windings.
  • usually insulated wires are used for the armature windings whose wire ends are connected to one another by means of a welded or soldered connection, so that the individual wires are in electrical contact with one another.
  • the wires have as insulation either a lacquer layer or a plastic coating. Before welding or soldering the wire ends, they must be freed from their insulation.
  • Such a method requires a relatively high workload and is also technically relatively difficult to monitor.
  • the invention has the object, a method for electrical contacting of wires according to the preamble of claim 1 such that an electrically conductive connection in a relatively simple and economically producible manner can be achieved.
  • a method is thus to be made possible which enables the connection of the wire ends of the individual armature windings in the area of electric motors or generators.
  • the invention is based on the idea of allowing an electrically conductive contact element to connect to the wires, wherein the connection is generated in a connection region by an electromagnetic pulse.
  • a force-fit connection between at least one wire and the contact element is produced in that the two parts to be joined collide with one another at high speed.
  • At least one sleeve-shaped contact element is used and that the wires are arranged in the connection region within the at least one contact element become.
  • the at least one sleeve-shaped contact element has a structured surface in the connection region with the wires on the side facing the wires, starting from the elevations, which form at least one non-positive and electrically conductive connection with the wires when forming the connection with the wires Enter wires.
  • Such an embodiment of the invention also makes it possible to use wires which have an insulation layer, for example a lacquer layer or an insulation consisting of plastic, in the connection region, without the lacquer or insulation layer having to be removed for this purpose.
  • the elevations are in the form of sharp-edged elevations, in particular in the form of tips, edges or the like.
  • Such a design enables a secure contacting of the wires through the paint or insulation layer and, moreover, produces a particularly secure frictional connection.
  • a further embodiment of the method according to the invention provides that a plurality of sleeve-shaped contact elements are used with different diameters, which are arranged concentrically to each other and that the wires are each arranged in the space between two contact elements.
  • Such a design has the advantage that a large number of winding layers arranged next to one another can be reliably contacted in a relatively small space. In this case, however, wires should be used, the wire ends have been electrically stripped in advance.
  • a plurality of sleeve-shaped contact elements are used with different diameters, which are arranged concentrically to each other, that the wires are each arranged in the space between two contact elements and that the sleeve-shaped contact elements each have a structured surface on the sides facing the wires.
  • the structured surface in particular causes a break-up or destruction of the lacquer or insulation layer of the wire ends.
  • the sleeve-shaped contact element has a higher has mechanical strength than the wires. Therefore, for example, aluminum or copper are used as materials for the contact element. In addition, it may also be useful in individual cases, if the sleeve or the contact element is made of a different material, for example steel. In this case, a particularly secure frictional or positive connection between the structured surface and the wire is produced.
  • the wires are arranged with play to the sleeve-shaped element.
  • a device 10 for establishing an electrical connection between wires 1 in a connection region 2 is shown.
  • a connection is made between a plurality of wires 1 in the connection region 2.
  • the connection of the wires 1 takes place at the end regions.
  • the wires 1 are, in particular, insulated wires, for example enamelled wires or wires 1 with an insulating layer, as in the US Pat Fig. 4 and 6 are shown in more detail.
  • the device 10 is used for connecting wires 1, as used in electric motors or generators in the winding of the armature for the anchor winding.
  • the device 10 comprises inter alia a system 11 for generating at least one electromagnetic pulse 3, which in the Fig. 1 only symbolically represented.
  • a sleeve-shaped contact element 15 is preferably used, at least in the connection region 2.
  • the contact element 15 in this case consists of an electrically conductive material, in particular metal. As materials in particular aluminum or copper, but in some cases, for example, steel, in question.
  • the contact element 15 comprises in addition to the sleeve-shaped contact portion 16, a terminal lug 17 which is integrally formed on the sleeve-shaped contact portion 16.
  • the contact element 15 can be electrically connected to other elements.
  • the contact element 15 is preferably formed as a drawn tube. Alternatively, it may be designed or manufactured as a longitudinally welded pipe, deep-drawn part, stamped / bent part or in any other suitable manner.
  • the sleeve-shaped contact element 15 has a smooth or even inside, wherein the inside serves as an electrically conductive contact surface for at least one wire 1 or multiple wires 1.
  • the insulating layer at the end portions of the wires 1 is removed. Such removal may be accomplished either by mechanical means or otherwise.
  • the individual wires 1 are introduced into the sleeve-shaped contact section 16 of the contact element 15 and connected within the device 10 by generating the electromagnetic pulse 3 with the inner wall of the sleeve-shaped contact element 15.
  • an embodiment of the invention is particularly preferred according to the Fig. 2 to 4 in which the contact element 15a, 15b has a structured surface 18 has.
  • the contact element 15a, 15b has a structured surface 18 has.
  • Invention is the surface 18 on the inside of the contact element 15a with a plurality of juxtaposed and stacked elevations 19, e.g. in the form of pyramids, cones or similar. These elevations 19 are produced in particular by an embossing process at the intended contact surface with the wires 1, i. on the inside of the contact element 15a.
  • the structured surface 18a is formed in the form of circumferential on the inner wall of the contact element 15b grooves 21.
  • the grooves 21 and their peripheral edge 22 act as cutting, which in the generation of the electromagnetic pulse 3 in the Fig. 4 Pierced paint layer 5 of the wire 1 in the region of the edges pierced and dig into the actual wire 1.
  • an insulating layer made of plastic may be provided on the wire 1.
  • each sleeve-shaped contact elements 15c, 15d comprises two concentrically arranged, each sleeve-shaped contact elements 15c, 15d.
  • the contact element 15c has a smaller diameter than the contact element 15d.
  • the individual wires 1 are arranged in the annular inner space 24 formed between the two contact elements 15c and 15d.
  • both contact elements 15c, 15d each have a structured surface 18 on the side facing the wires 1.
  • the Fig. 6 the case is shown in which two layers of wires 1 are arranged between the two contact elements 15c and 15d. In this case, the one, radially inner wire 1 is electrically contacted with the inner contact element 15c, while the other, radially outer wire 1 makes an electrical connection with the outer contact element 15d.
  • the inner contact element 15c may also be formed from solid material or a spike-like manner. It is only essential that between the individual contact elements 15c, 15d an annular inner space 24 for receiving wires 1 is formed in each case.
  • the individual wires 1 for forming the connection with play in the contact elements 15, 15a to 15d.
  • the game is intended in particular to allow a simple installation of the wires 1 in the respective contact element 15, 15a to 15d and therefore be as large as possible, but on the other hand, not adversely affect the electrical connection of the wires 1.
  • the clearance between a wire 1 and the facing contact surface of the contact element 15, 15a to 15d is between about 0.1 mm and 1.0 mm. If a plurality of wires 1 connected to the contact element 15, 15a to 15d, the game can also be up to a multiple of the single wire diameter.
  • This has a contact area 25 with out of the FIGS. 2 and 3 known elevations 19 and a structured surface 18 b, and one of them in the longitudinal direction, preferably on the side facing the wires 1 side clamping region 26th
  • the state is shown after the electromagnetic pulse 3 has made the connection between the wires 1 and the contact element 15e. It can be seen that the clamping region 26 has been deformed under the action of the electromagnetic pulse 3, so that the wires 1 are clamped or clamped in the clamping region 26. As a result, a strain relief on the wires 1 is made possible by the clamping region 26, so that Any tensile forces are absorbed via the clamping area 26 and do not transfer to the contact area 25.
  • the method according to the invention for the electrical contacting of wires 1 can be modified or modified in many ways without deviating from the idea of the invention.
  • This consists in the use of a contact element 15, in particular a sleeve-shaped contact element 15, 15a to 15e which is connected by means of an electromagnetic pulse 2 with at least one wire 1, preferably with a plurality of wires 1 and their wire ends.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

The method involves electrically contacting a wire (1) in a connection region (2). An electrically conductive sleeve-shaped contact element (15) is provided in active connection with the wire in a contact region (16). An electromagnetic pulse (3) is introduced into the wire in the contact region. A frictional or metallurgical connection is formed between the wire and the contact element. The wire is provided with an insulation layer i.e. paint layer, in the connection region. The insulation layer is destructed when forming the electrical interconnection of a structured surface.

Description

Stand der TechnikState of the art

Die Erfindung betrifft ein Verfahren zur elektrischen Kontaktierung von Drähten nach dem Oberbegriff des Anspruchs 1.The invention relates to a method for electrical contacting of wires according to the preamble of claim 1.

Ein derartiges bekanntes Verfahren wird beispielsweise zur elektrischen Kontaktierung von Drahtenden bei Generatoren oder Elektromotoren bei deren Anker oder Statorwicklungen eingesetzt. Hierbei werden üblicherweise isolierte Drähte für die Ankerwicklungen verwendet, deren Drahtenden mit einer Schweiß- oder Lötverbindung miteinander verbunden werden, sodass die einzelnen Drähte miteinander elektrisch kontaktiert sind. Die Drähte weisen dabei als Isolation entweder eine Lackschicht oder einen aus Kunststoff bestehenden Überzug auf. Vor dem Verschweißen bzw. Verlöten der Drahtenden müssen diese von ihrer Isolierung befreit werden. Ein derartiges Verfahren bedingt einen relativ hohen Arbeitsaufwand und ist darüber hinaus prozesstechnisch relativ schwer zu überwachen.Such a known method is used for example for the electrical contacting of wire ends in generators or electric motors at the armature or stator windings. In this case, usually insulated wires are used for the armature windings whose wire ends are connected to one another by means of a welded or soldered connection, so that the individual wires are in electrical contact with one another. The wires have as insulation either a lacquer layer or a plastic coating. Before welding or soldering the wire ends, they must be freed from their insulation. Such a method requires a relatively high workload and is also technically relatively difficult to monitor.

Weiterhin ist es aus der DE 10 2004 004 742 A1 bekannt, beim Bonden von isolierten Drähten die Verbindung zwischen einem abisolierten Drahtabschnitt und der Verbindungsstelle durch Einbringen einer elektromagnetischen Energie herzustellen. Dabei wird die Lackschicht vorab durch mechanische Energieeinwirkung mittels eines Bondwerkzeugs durch Aufplatzen der Lackschicht lokal entfernt.Furthermore, it is from the DE 10 2004 004 742 A1 It is known to make the connection between a stripped wire section and the connection point by introducing an electromagnetic energy when bonding insulated wires. In this case, the lacquer layer is locally removed by mechanical action of energy by means of a bonding tool by bursting the lacquer layer.

Darüber hinaus ist es bekannt, mehrere, insbesondere aus Metall bestehende Teile mittels des sogenannten Magnetimpuls-Schweißverfahrens miteinander zu verbinden.In addition, it is known to connect several, in particular made of metal parts by means of the so-called magnetic pulse welding process.

Offenbarung der ErfindungDisclosure of the invention

Ausgehend von dem dargestellten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zur elektrischen Kontaktierung von Drähten nach dem Oberbegriff des Anspruchs 1 derart weiterzubilden, dass eine elektrisch leitende Verbindung auf relativ einfache und wirtschaftlich günstig herstellbare Weise erzielbar ist. Insbesondere soll damit ein Verfahren ermöglicht werden, das im Bereich von Elektromotoren bzw. Generatoren die Verbindung der Drahtenden der einzelnen Ankerwicklungen ermöglicht.Starting from the illustrated prior art, the invention has the object, a method for electrical contacting of wires according to the preamble of claim 1 such that an electrically conductive connection in a relatively simple and economically producible manner can be achieved. In particular, a method is thus to be made possible which enables the connection of the wire ends of the individual armature windings in the area of electric motors or generators.

Diese Aufgabe wird bei einem Verfahren zur elektrischen Kontaktierung von Drähten mit den Merkmalen des Anspruchs 1 gelöst. Der Erfindung liegt dabei die Idee zugrunde, durch ein elektrisch leitendes Kontaktelement eine Verbindung mit den Drähten zu ermöglichen, wobei die Verbindung in einem Verbindungsbereich durch einen elektromagnetischen Impuls erzeugt wird. Durch dieses mittels des elektromagnetischen Impulses hervorgerufene Magnetimpulsschweißen wird eine kraft- bzw. stoffschlüssige Verbindung zwischen wenigstens einem Draht und dem Kontaktelement dadurch erzeugt, dass die beiden zu fügenden Teile mit hoher Geschwindigkeit miteinander kollidieren.This object is achieved in a method for electrical contacting of wires with the features of claim 1. The invention is based on the idea of allowing an electrically conductive contact element to connect to the wires, wherein the connection is generated in a connection region by an electromagnetic pulse. As a result of this magnetic pulse welding caused by the electromagnetic pulse, a force-fit connection between at least one wire and the contact element is produced in that the two parts to be joined collide with one another at high speed.

Vorteilhafte Weiterbildungen des erfindungsgemäßen Verfahrens zur elektrischen Kontaktierung von Drähten sind in den Unteransprüchen angegeben. In den Rahmen der Erfindung fallen sämtliche Kombinationen aus zumindest zwei von in den Ansprüchen, der Beschreibung und/oder den Figuren offenbarten Merkmalen.Advantageous developments of the method according to the invention for the electrical contacting of wires are given in the subclaims. All combinations of at least two of the features disclosed in the claims, the description and / or the figures fall within the scope of the invention.

In einer besonders bevorzugten Ausgestaltung ist es vorgesehen, dass wenigstens ein hülsenförmiges Kontaktelement verwendet wird und dass die Drähte im Verbindungsbereich innerhalb des wenigstens einen Kontaktelements angeordnet werden. Durch die Verwendung eines hülsenförmigen Kontaktelements wird hierbei insbesondere eine definierte und sichere Führung der Drahtenden erzielt.In a particularly preferred embodiment, it is provided that at least one sleeve-shaped contact element is used and that the wires are arranged in the connection region within the at least one contact element become. By the use of a sleeve-shaped contact element in this case, in particular a defined and secure guidance of the wire ends is achieved.

Besonders bevorzugt ist es weiterhin, wenn das wenigstens eine hülsenförmige Kontaktelement im Verbindungsbereich mit den Drähten auf der den Drähten zugewandten Seite eine strukturierte Oberfläche aufweist, von der Erhebungen ausgehen, die beim Ausbilden der Verbindung mit den Drähten zumindest eine kraftschlüssige und elektrisch leitfähige Verbindung mit den Drähten eingehen. Eine derartige Ausgestaltung der Erfindung ermöglicht es, auch Drähte zu verwenden, die in dem Verbindungsbereich eine Isolationsschicht, beispielsweise eine Lackschicht oder eine aus Kunststoff bestehende Isolation, aufweisen, ohne dass hierzu die Lack- bzw. Isolationsschicht entfernt werden muss.It is furthermore particularly preferred if the at least one sleeve-shaped contact element has a structured surface in the connection region with the wires on the side facing the wires, starting from the elevations, which form at least one non-positive and electrically conductive connection with the wires when forming the connection with the wires Enter wires. Such an embodiment of the invention also makes it possible to use wires which have an insulation layer, for example a lacquer layer or an insulation consisting of plastic, in the connection region, without the lacquer or insulation layer having to be removed for this purpose.

In einer ganz besonders bevorzugten Ausgestaltung der Erfindung ist es dabei vorgesehen, dass die Erhebungen in Form von scharfkantigen Erhebungen, insbesondere in Form von Spitzen, Kanten oder dergleichen ausgebildet sind. Durch eine derartige Ausbildung wird eine sichere Kontaktierung der Drähte durch die Lack- bzw. Isolationsschicht ermöglicht und darüber hinaus eine besonders sichere kraftschlüssige Verbindung hergestellt.In a very particularly preferred embodiment of the invention, it is provided that the elevations are in the form of sharp-edged elevations, in particular in the form of tips, edges or the like. Such a design enables a secure contacting of the wires through the paint or insulation layer and, moreover, produces a particularly secure frictional connection.

Eine weitere Ausgestaltung des erfindungsgemäßen Verfahrens sieht vor, dass mehrere hülsenförmige Kontaktelemente mit unterschiedlichen Durchmessern verwendet werden, die konzentrisch zueinander angeordnet sind und dass die Drähte jeweils im Zwischenraum zwischen zwei Kontaktelementen angeordnet werden. Eine derartige Ausbildung hat den Vorteil, dass eine Vielzahl von nebeneinander angeordneten Wicklungslagen auf relativ engem Raum sicher kontaktiert werden können. Hierbei sollten jedoch Drähte verwendet werden, deren Drahtenden elektrisch vorab abisoliert worden sind.A further embodiment of the method according to the invention provides that a plurality of sleeve-shaped contact elements are used with different diameters, which are arranged concentrically to each other and that the wires are each arranged in the space between two contact elements. Such a design has the advantage that a large number of winding layers arranged next to one another can be reliably contacted in a relatively small space. In this case, however, wires should be used, the wire ends have been electrically stripped in advance.

Um auch mehrere Reihen bzw. Lagen von Drähten elektrisch miteinander zu verbinden, welche jeweils eine Lack- bzw. Isolationsschicht aufweisen, ist es in einer weiteren Ausgestaltung der Erfindung vorgesehen, dass mehrere hülsenförmige Kontaktelemente mit unterschiedlichen Durchmessern verwendet werden, die konzentrisch zueinander angeordnet sind, dass die Drähte jeweils im Zwischenraum zwischen zwei Kontaktelementen angeordnet werden und dass die hülsenförmigen Kontaktelemente auf den den Drähten zugewandten Seiten jeweils eine strukturierte Oberfläche aufweisen. Hierbei wird durch die strukturierte Oberfläche insbesondere ein Aufbrechen bzw. Zerstören der Lack- bzw. Isolationsschicht der Drahtenden bewirkt.In order to electrically connect several rows or layers of wires to each other, which each have a paint or insulation layer, it is provided in a further embodiment of the invention that a plurality of sleeve-shaped contact elements are used with different diameters, which are arranged concentrically to each other, that the wires are each arranged in the space between two contact elements and that the sleeve-shaped contact elements each have a structured surface on the sides facing the wires. In this case, the structured surface in particular causes a break-up or destruction of the lacquer or insulation layer of the wire ends.

Um zu gewährleisten, dass sowohl die Lack- bzw. Isolationsschicht bei der Verbindung sicher zerstört wird, als auch dass eine sichere kraftschlüssige Verbindung zwischen der strukturierten Oberfläche und dem eigentlichen Draht erzielt wird, ist es darüber hinaus von Vorteil, wenn das hülsenförmige Kontaktelement eine höhere mechanische Festigkeit aufweist als die Drähte. Daher werden üblicherweise für das Kontaktelement beispielsweise Aluminium bzw. Kupfer als Werkstoffe eingesetzt. Darüber hinaus kann es jedoch im Einzelfall auch sinnvoll sein, wenn die Hülse bzw. das Kontaktelement aus einem anderen Werkstoff hergestellt ist, beispielsweise aus Stahl. In diesem Fall wird eine besonders sichere kraft- bzw. formschlüssige Verbindung zwischen der strukturierten Oberfläche und dem Draht hergestellt.In order to ensure that both the paint or insulation layer is securely destroyed in the connection, as well as that a secure frictional connection between the structured surface and the actual wire is achieved, it is also advantageous if the sleeve-shaped contact element has a higher has mechanical strength than the wires. Therefore, for example, aluminum or copper are used as materials for the contact element. In addition, it may also be useful in individual cases, if the sleeve or the contact element is made of a different material, for example steel. In this case, a particularly secure frictional or positive connection between the structured surface and the wire is produced.

Um einen besonders einfachen Montageprozess der Drähte in dem Kontaktelement zu ermöglichen, ist es in einer vorteilhaften Ausgestaltung der Erfindung vorgesehen, dass die Drähte mit Spiel zu dem hülsenförmigen Element angeordnet werden.In order to enable a particularly simple assembly process of the wires in the contact element, it is provided in an advantageous embodiment of the invention that the wires are arranged with play to the sleeve-shaped element.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung.Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing.

Diese zeigt in:

Fig. 1
eine Anordnung zur Erzeugung einer elektrischen Verbindung an Draht-enden in einer vereinfachten Darstellung,
Fig. 2
einen Teilbereich eines mit einer strukturierten Oberfläche ausgestatte-ten hülsenförmigen Kontaktelements in einer teilweise geschnittenen Darstellung,
Fig. 3
ein gegenüber der Fig. 2 modifiziertes Ausführungsbeispiel, bei dem die strukturierte Oberfläche in Form von eingeprägten Rillen bzw. Kanten ausgebildet ist, ebenfalls in einer teilweise geschnittenen Darstellung,
Fig. 4
einen Schnitt durch einen Teilbereich des Kontaktelements gemäß Fig. 3, bei der dieses eine elektrische Kontaktierung mit einem Draht ausbil-det,
Fig. 5
einen Querschnitt durch eine Anordnung aus mehreren, insbesondere hülsenförmigen Kontaktelementen, zwischen denen eine Vielzahl von Drähten angeordnet sind und
Fig. 6
einen Schnitt durch eine Anordnung bestehend aus einer Außenhülse und einem Innenteil, welche eine elektrische Kontaktierung zu zwei Drahtenden herstellen,
Fig. 7
einen Teillängsschnitt durch ein abgewandeltes Kontaktelement und
Fig. 8
eine Ansicht auf das mit Drähten versehene Kontaktelement gemäß der Fig. 7, bei dem die Drähte im Endzustand mit dem Kontaktelement ver-bunden sind.
This shows in:
Fig. 1
an arrangement for generating an electrical connection at wire ends in a simplified representation,
Fig. 2
a partial region of a sleeve-shaped contact element equipped with a structured surface in a partially sectioned illustration,
Fig. 3
one opposite the Fig. 2 modified embodiment in which the structured surface is formed in the form of embossed grooves or edges, also in a partially sectioned illustration,
Fig. 4
a section through a portion of the contact element according to Fig. 3 in which this forms an electrical contact with a wire,
Fig. 5
a cross section through an arrangement of a plurality of, in particular sleeve-shaped contact elements, between which a plurality of wires are arranged and
Fig. 6
a section through an arrangement consisting of an outer sleeve and an inner part, which produce an electrical contact with two wire ends,
Fig. 7
a partial longitudinal section through a modified contact element and
Fig. 8
a view of the provided with wires contact element according to the Fig. 7 in which the wires in the final state are connected to the contact element.

Gleiche Bauteile bzw. Bauteile mit gleicher Funktion sind in den Figuren mit denselben Bezugsziffern versehen.The same components or components with the same function are provided in the figures with the same reference numerals.

In der Fig. 1 ist eine Einrichtung 10 zum Herstellen einer elektrischen Verbindung zwischen Drähten 1 in einem Verbindungsbereich 2 dargestellt. Insbesondere wird dabei eine Verbindung zwischen mehreren Drähten 1 in dem Verbindungsbereich 2 hergestellt. Die Verbindung der Drähte 1 erfolgt dabei an deren Endbereichen. Bei den Drähten 1 handelt es sich insbesondere um isolierte Drähte, z.B. Lackdrähte bzw. Drähte 1 mit einer Isolationsschicht, wie diese in den Fig. 4 und 6 näher dargestellt sind. Insbesondere dient die Einrichtung 10 zum Verbinden von Drähten 1, wie diese bei Elektromotoren bzw. Generatoren bei der Bewicklung der Anker zur Ankerbewicklung eingesetzt werden.In the Fig. 1 a device 10 for establishing an electrical connection between wires 1 in a connection region 2 is shown. In particular, a connection is made between a plurality of wires 1 in the connection region 2. The connection of the wires 1 takes place at the end regions. The wires 1 are, in particular, insulated wires, for example enamelled wires or wires 1 with an insulating layer, as in the US Pat Fig. 4 and 6 are shown in more detail. In particular, the device 10 is used for connecting wires 1, as used in electric motors or generators in the winding of the armature for the anchor winding.

Die Einrichtung 10 umfasst unter anderem eine Anlage 11 zur Erzeugung wenigstens eines elektromagnetischen Impulses 3, der in der Fig. 1 lediglich symbolhaft dargestellt ist. Zum Herstellen der Verbindung wird vorzugsweise ein zumindest im Verbindungsbereich 2 hülsenförmiges Kontaktelement 15 eingesetzt. Das Kontaktelement 15 besteht hierbei aus einem elektrisch leitfähigen Material, insbesondere Metall. Als Materialien kommen dabei insbesondere Aluminium oder Kupfer, im Einzelfall jedoch auch beispielsweise Stahl, in Frage. Das Kontaktelement 15 umfasst neben dem hülsenförmigen Kontaktabschnitt 16 eine Anschlussfahne 17, die einstückig an dem hülsenförmigen Kontaktabschnitt 16 angeformt ist. Mittels des Kontaktabschnitts 16 lässt sich das Kontaktelement 15 elektrisch mit weiteren Elementen verbinden. Das Kontaktelement 15 ist vorzugsweise als gezogenes Rohr ausgebildet. Alternativ kann es auch als längsnahtgeschweißtes Rohr, Tiefziehteil, Stanz-/Biegeteil oder in sonstiger geeigneter Weise ausgebildet bzw. hergestellt sein.The device 10 comprises inter alia a system 11 for generating at least one electromagnetic pulse 3, which in the Fig. 1 only symbolically represented. To produce the connection, a sleeve-shaped contact element 15 is preferably used, at least in the connection region 2. The contact element 15 in this case consists of an electrically conductive material, in particular metal. As materials in particular aluminum or copper, but in some cases, for example, steel, in question. The contact element 15 comprises in addition to the sleeve-shaped contact portion 16, a terminal lug 17 which is integrally formed on the sleeve-shaped contact portion 16. By means of the contact portion 16, the contact element 15 can be electrically connected to other elements. The contact element 15 is preferably formed as a drawn tube. Alternatively, it may be designed or manufactured as a longitudinally welded pipe, deep-drawn part, stamped / bent part or in any other suitable manner.

In einer ersten, nicht dargestellten Ausführungsform der Erfindung ist es vorgesehen, dass das hülsenförmige Kontaktelement 15 eine glatte bzw. ebene Innenseite aufweist, wobei die Innenseite als elektrisch leitende Kontaktoberfläche für wenigstens einen Draht 1 oder aber meherere Drähte 1 dient. In diesem Fall ist es erforderlich, dass die Isolationsschicht an den Endbereichen der Drähte 1 entfernt wird. Ein derartiges Entfernen kann entweder auf mechanischem Weg oder auf sonstige geeignete Weise erfolgen. Zum Herstellen der Verbindung im Verbindungsbereich 2 werden dabei die einzelnen Drähte 1 in den hülsenförmigen Kontaktabschnitt 16 des Kontaktelements 15 eingeführt und innerhalb der Einrichtung 10 durch Erzeugen des elektromagnetischen Impulses 3 mit der Innenwand des hülsenförmigen Kontaktelements 15 verbunden. Je nach Auslegung bzw. nach den Parametern des elektromagnetischen Impulses 3 erfolgt hierbei zumindest eine kraftschlüssige Verbindung bzw. zusätzlich eine Schweißverbindung, d.h. eine stoffschlüssige Verbindung, bei der der Kontaktbereich zwischen den Drähten 1 und dem hülsenförmigen Kontaktelement 15 eine stoffschlüssige Verbindung eingeht.In a first, non-illustrated embodiment of the invention, it is provided that the sleeve-shaped contact element 15 has a smooth or even inside, wherein the inside serves as an electrically conductive contact surface for at least one wire 1 or multiple wires 1. In this case, it is required that the insulating layer at the end portions of the wires 1 is removed. Such removal may be accomplished either by mechanical means or otherwise. To produce the connection in the connection region 2, the individual wires 1 are introduced into the sleeve-shaped contact section 16 of the contact element 15 and connected within the device 10 by generating the electromagnetic pulse 3 with the inner wall of the sleeve-shaped contact element 15. Depending on the design or on the parameters of the electromagnetic pulse 3, at least one non-positive connection or, in addition, a welded joint, i. a cohesive connection, in which the contact region between the wires 1 and the sleeve-shaped contact element 15 enters into a cohesive connection.

Besonders bevorzugt ist jedoch eine Ausführung der Erfindung entsprechend den Fig. 2 bis 4, bei denen das Kontaktelement 15a, 15b eine strukturierte Oberfläche 18 aufweist. Bei dem in der Fig. 2 dargestellten Ausführungsbeispiel derHowever, an embodiment of the invention is particularly preferred according to the Fig. 2 to 4 in which the contact element 15a, 15b has a structured surface 18 has. In the in the Fig. 2 illustrated embodiment of the

Erfindung ist die Oberfläche 18 an der Innenseite des Kontaktelements 15a dabei mit einer Vielzahl von nebeneinander und übereinander angeordneten Erhebungen 19, z.B. in Form von Pyramiden, Kegeln oder ähnlichem, ausgestattet. Diese Erhebungen 19 werden dabei insbesondere durch einen Prägeprozess an der vorgesehenen Kontaktfläche zu den Drähten 1 erzeugt, d.h. an der Innenseite des Kontaktelements 15a.Invention is the surface 18 on the inside of the contact element 15a with a plurality of juxtaposed and stacked elevations 19, e.g. in the form of pyramids, cones or similar. These elevations 19 are produced in particular by an embossing process at the intended contact surface with the wires 1, i. on the inside of the contact element 15a.

In der Fig. 3 ist ein Kontaktelement 15b dargestellt, dessen strukturierte Oberfläche 18a in Form von an der Innenwand des Kontaktelements 15b umlaufenden Rillen 21 ausgebildet ist. Hierbei wirken die Rillen 21 bzw. deren umlaufende Kante 22 als Schneiden, die bei der Erzeugung des elektromagnetischen Impulses 3 die in der Fig. 4 dargestellte Lackschicht 5 des Drahtes 1 im Bereich der Kanten durchstoßen und sich in den eigentlichen Draht 1 eingraben. Selbstverständlich kann anstelle der Lackschicht 5 auch eine aus Kunststoff bestehende Isolationsschicht am Draht 1 vorgesehen sein.In the Fig. 3 is a contact element 15b is shown, the structured surface 18a is formed in the form of circumferential on the inner wall of the contact element 15b grooves 21. In this case, the grooves 21 and their peripheral edge 22 act as cutting, which in the generation of the electromagnetic pulse 3 in the Fig. 4 Pierced paint layer 5 of the wire 1 in the region of the edges pierced and dig into the actual wire 1. Of course, instead of the lacquer layer 5, an insulating layer made of plastic may be provided on the wire 1.

In den Fig. 5 und 6 ist ein Ausführungsbeispiel der Erfindung dargestellt, das zwei, konzentrisch zueinander angeordnete, jeweils hülsenförmige Kontaktelemente 15c, 15d umfasst. Hierbei weist das Kontaktelement 15c einen geringeren Durchmesser auf als das Kontaktelement 15d. Die einzelnen Drähte 1 sind in dem zwischen den beiden Kontaktelementen 15c und 15d ausgebildeten ringförmigen Innenraum 24 angeordnet. Insbesondere ist es vorgesehen, dass beide Kontaktelemente 15c, 15d auf der den Drähten 1 zugewandten Seite jeweils eine strukturierte Oberfläche 18 aufweisen. In der Fig. 6 ist der Fall dargestellt, bei der zwischen den beiden Kontaktelementen 15c und 15d zwei Lagen von Drähten 1 angeordnet sind. In diesem Fall wird der eine, radial innere Draht 1 mit dem inneren Kontaktelement 15c elektrisch kontaktiert, während der andere, radial äußere Draht 1 eine elektrische Verbindung mit dem äußeren Kontaktelement 15d eingeht.In the Fig. 5 and 6 an embodiment of the invention is shown, which comprises two concentrically arranged, each sleeve-shaped contact elements 15c, 15d. Here, the contact element 15c has a smaller diameter than the contact element 15d. The individual wires 1 are arranged in the annular inner space 24 formed between the two contact elements 15c and 15d. In particular, it is provided that both contact elements 15c, 15d each have a structured surface 18 on the side facing the wires 1. In the Fig. 6 the case is shown in which two layers of wires 1 are arranged between the two contact elements 15c and 15d. In this case, the one, radially inner wire 1 is electrically contacted with the inner contact element 15c, while the other, radially outer wire 1 makes an electrical connection with the outer contact element 15d.

Ergänzend wird erwähnt, dass die in den Fig. 5 und 6 dargestellte Ausbildung bzw. Anordnung mit mehreren hülsenförmigen Kontaktelementen 15c, 15d nicht nur auf zwei hülsenförmige Kontaktelemente 15c, 15d beschränkt ist, sondern beispielsweise auch mehr als zwei Kontaktelemente 15c, 15d aufweisen kann. Darüber hinaus kann das innere Kontaktelement 15c auch aus Vollmaterial bzw. dornartig ausgebildet sein. Wesentlich ist lediglich, dass zwischen den einzelnen Kontaktelementen 15c, 15d jeweils ein ringförmiger Innenraum 24 zur Aufnahme von Drähten 1 ausgebildet wird.In addition, it is mentioned that in the Fig. 5 and 6 illustrated embodiment or arrangement with a plurality of sleeve-shaped contact elements 15c, 15d is not limited to two sleeve-shaped contact elements 15c, 15d, but for example, more than two contact elements 15c, 15d may have. In addition, the inner contact element 15c may also be formed from solid material or a spike-like manner. It is only essential that between the individual contact elements 15c, 15d an annular inner space 24 for receiving wires 1 is formed in each case.

Darüber hinaus wird erwähnt, dass für den Fall, bei dem eine Vielzahl von Drähten 1 in mehreren Lagen nebeneinander angeordnet werden, welche mittels Kontaktelementen 15c, 15d elektrisch kontaktiert werden sollen, diese bevorzugt abisolierte Drahtenden aufweisen, um eine sichere elektrische Verbindung derjenigen Drähte 1 zu bewirken, die sich nicht im direkten Anlagekontakt mit einem der Kontaktelemente 15c, 15d befinden.In addition, it is mentioned that for the case in which a plurality of wires 1 are arranged side by side in a plurality of layers, which are to be electrically contacted by contact elements 15c, 15d, they preferably have stripped wire ends, in order to secure electrical connection of those wires 1 cause, which are not in direct contact with one of the contact elements 15c, 15d.

Wie bereits erläutert, ist es möglich, die einzelnen Drähte 1 zum Ausbilden der Verbindung mit Spiel in den Kontaktelementen 15, 15a bis 15d anzuordnen. Das Spiel soll dabei insbesondere eine einfache Montage der Drähte 1 in dem jeweiligen Kontaktelement 15, 15a bis 15d ermöglichen und daher möglichst groß sein, auf der anderen Seite aber auch nicht die elektrische Anbindung der Drähte 1 negativ beeinflussen. Typischerweise liegt daher das Spiel zwischen einem Draht 1 und der zugewandten Kontaktoberfläche des Kontaktelements 15, 15a bis 15d zwischen etwa 0,1 mm und 1,0mm. Werden eine Vielzahl von Drähten 1 mit dem Kontaktelement 15, 15a bis 15d verbunden, kann das Spiel auch bis zu einem Mehrfachen des Einzeldrahtdurchmessers betragen.As already explained, it is possible to arrange the individual wires 1 for forming the connection with play in the contact elements 15, 15a to 15d. The game is intended in particular to allow a simple installation of the wires 1 in the respective contact element 15, 15a to 15d and therefore be as large as possible, but on the other hand, not adversely affect the electrical connection of the wires 1. Typically, therefore, the clearance between a wire 1 and the facing contact surface of the contact element 15, 15a to 15d is between about 0.1 mm and 1.0 mm. If a plurality of wires 1 connected to the contact element 15, 15a to 15d, the game can also be up to a multiple of the single wire diameter.

In den Fig. 7 und 8 ist ein nochmals modifiziertes, hülsenförmiges Kontaktelement 15e dargestellt. Dieses besitzt einen Kontaktbereich 25 mit aus den Fig. 2 und 3 bekannten Erhebungen 19 bzw. einer strukturierten Oberfläche 18b, sowie einen davon in Längsrichtung, vorzugsweise auf der den Drähten 1 zugewandten Seite beabstandeten Klemmbereich 26.In the Fig. 7 and 8th is a yet modified, sleeve-shaped contact element 15e shown. This has a contact area 25 with out of the FIGS. 2 and 3 known elevations 19 and a structured surface 18 b, and one of them in the longitudinal direction, preferably on the side facing the wires 1 side clamping region 26th

In der Fig. 8 ist der Zustand dargestellt, nachdem der elektromagnetische Impuls 3 die Verbindung zwischen den Drähten 1 und dem Kontaktelement 15e hergestellt hat. Man erkennt, dass der Klemmbereich 26 unter Einwirkung des elektromagnetischen Impulses 3 deformiert wurde, so dass die Drähte 1 im Klemmbereich 26 verklemmt bzw. reibschlüssig aufgenommen sind. Dadurch wird durch den Klemmbereich 26 eine Zugentlastung auf die Drähte 1 ermöglicht, so dass etwaige Zugkräfte über den Klemmbereich 26 aufgenommen werden und sich nicht auf den Kontaktbereich 25 übertragen.In the Fig. 8 the state is shown after the electromagnetic pulse 3 has made the connection between the wires 1 and the contact element 15e. It can be seen that the clamping region 26 has been deformed under the action of the electromagnetic pulse 3, so that the wires 1 are clamped or clamped in the clamping region 26. As a result, a strain relief on the wires 1 is made possible by the clamping region 26, so that Any tensile forces are absorbed via the clamping area 26 and do not transfer to the contact area 25.

Das erfindungsgemäße Verfahren zur elektrischen Kontaktierung von Drähten 1 kann in vielfältiger Art und Weise modifiziert bzw. abgewandelt werden, ohne vom Erfindungsgedanken abzuweichen. Dieser besteht in der Verwendung eines Kontaktelements 15, insbesondere eines hülsenförmigen Kontaktelements 15, 15a bis 15e das mittels eines elektromagnetischen Impulses 2 mit wenigstens einem Draht 1, bevorzugt mit mehrerer Drähten 1 bzw. deren Drahtenden verbunden wird.The method according to the invention for the electrical contacting of wires 1 can be modified or modified in many ways without deviating from the idea of the invention. This consists in the use of a contact element 15, in particular a sleeve-shaped contact element 15, 15a to 15e which is connected by means of an electromagnetic pulse 2 with at least one wire 1, preferably with a plurality of wires 1 and their wire ends.

Claims (11)

Verfahren zur elektrischen Kontaktierung von Drähten (1), bei dem wenigstens ein Draht (1) in einem Verbindungsbereich (2) elektrisch kontaktiert wird,
dadurch gekennzeichnet,
dass ein elektrisch leitendes Kontaktelement (15; 15a bis 15e) vorgesehen ist, das in einem Kontaktbereich (16; 25) mit dem wenigstens einen Draht (1) in Wirkverbindung mit dem wenigstens einen Draht (1) angeordnet wird und dass zumindest im Kontaktbereich (16; 25) ein elektromagnetischer Impuls (3) in den wenigstens einen Draht (1) bzw. das Kontaktelement (15; 15a bis 15e) eingebracht wird, der eine kraft- bzw. stoffschlüssige Verbindung zwischen dem wenigstens einen Draht (1) und dem Kontaktelement (15; 15a bis 15e) erzeugt.Method for electrical contacting of wires (1), in which at least one wire (1) is electrically contacted in a connection region (2),
characterized,
that an electrically conductive contact element (15; 15a-15e) is provided in a contact region (16; 25) is arranged with the at least one wire (1) in operative connection with the at least one wire (1) and that (at least in the contact area 16, 25) an electromagnetic pulse (3) in the at least one wire (1) or the contact element (15; 15a to 15e) is introduced, the a force or cohesive connection between the at least one wire (1) and the Contact element (15; 15a to 15e) generated. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass wenigstens ein hülsenförmiges Kontaktelement (15; 15a bis 15e) verwendet wird und dass die Drähte (1) im Verbindungsbereich (2) innerhalb des wenigstens einen Kontaktelements (15; 15a bis 15e) angeordnet werden.Method according to claim 1,
characterized,
in that at least one sleeve-shaped contact element (15; 15a to 15e) is used and in that the wires (1) are arranged in the connection region (2) within the at least one contact element (15; 15a to 15e). Verfahren nach Anspruch 2,
dadurch gekennzeichnet,
dass das wenigstens eine hülsenförmige Kontaktelement (15; 15a bis 15e) im Verbindungsbereich (2) mit den Drähten (1) auf der den Drähten (1) zugewandten Seite zumindest bereichsweise eine strukturierte Oberfläche (18; 18a; 18b) aufweist, von der Erhebungen (19; 22) ausgehen, die beim Ausbilden der Verbindung mit den Drähten (1) zumindest eine kraftschlüssige und elektrisch leitfähige Verbindung mit den Drähten (1) eingehen.Method according to claim 2,
characterized,
that the at least one sleeve-shaped contact element (15; 15a to 15e) in the connection region (2) with the wires (1) on the side facing the wires (1) at least partially a structured surface (18; 18a; 18b), of the elevations (19; 22) go out while training the connection with the wires (1) at least enter a frictional and electrically conductive connection with the wires (1). Verfahren nach Anspruch 3,
dadurch gekennzeichnet,
dass die Erhebungen (19; 22) in Form von scharfkantigen Erhebungen (19, 22), insbesondere in Form von Spitzen, Kanten oder dergleichen ausgebildet sind.Method according to claim 3,
characterized,
in that the elevations (19, 22) are in the form of sharp-edged elevations (19, 22), in particular in the form of points, edges or the like. Verfahren nach Anspruch 3 oder 4,
dadurch gekennzeichnet,
dass die Drähte (1) im Verbindungsbereich (2) eine Isolationsschicht (5), insbesondere eine Lackschicht aufweisen, und dass die Isolationsschicht (5) beim Ausbilden der elektrischen Verbindung von der strukturierten Oberfläche (18; 18a; 18b) zumindest bereichsweise zerstört wird.Method according to claim 3 or 4,
characterized,
in that the wires (1) have an insulation layer (5), in particular a lacquer layer, in the connection region (2), and that the insulation layer (5) is destroyed at least in regions during the formation of the electrical connection from the structured surface (18; 18a; 18b). Verfahren nach einem der Ansprüche 3 bis 5,
dadurch gekennzeichnet,
dass das Kontaktelement (15e) einen Klemmbereich (26) aufweist, in dessen Bereich die Drähte (1) nach dem Einbringen des elektromagnetischen Impulses (3) klemmend gehalten sind und dass der Klemmbereich (26) beabstandet zur strukturierten Oberfläche (18b) angeordnet ist.Method according to one of claims 3 to 5,
characterized,
that the contact element (15e) has a clamping region (26) in the region of which the wires (1) after the introduction of electromagnetic pulse (3) are held clamped and that the clamping portion (26) spaced from the structured surface (18b) is arranged. Verfahren nach Anspruch 2,
dadurch gekennzeichnet,
dass mehrere hülsenförmige Kontaktelemente (15c, 15d) mit unterschiedlichen Durchmessern verwendet werden, die konzentrisch zueinander angeordnet sind, dass die Drähte (1) jeweils im Zwischenraum (24) zwischen zwei Kontaktelementen (15c, 15d) angeordnet werden und dass eine Isolationsschicht (5) der Drähte (1) vorab entfernt wird.Method according to claim 2,
characterized,
in that a plurality of sleeve-shaped contact elements (15c, 15d) having different diameters are used, which are arranged concentrically with each other, that the wires (1) are respectively arranged in the intermediate space (24) between two contact elements (15c, 15d) and that an insulation layer (5) the wires (1) is removed in advance. Verfahren nach Anspruch 3 bis 6,
dadurch gekennzeichnet,
dass mehrere hülsenförmige Kontaktelemente (15c, 15d) mit unterschiedlichen Durchmessern verwendet werden, die konzentrisch zueinander angeordnet sind, dass die Drähte (1) jeweils im Zwischenraum (24) zwischen zwei Kontaktelementen (15c, 15d) angeordnet werden und dass die hülsenförmigen Kontaktelemente (15c, 15d) auf den den Drähten (1) zugewandten Seiten jeweils eine strukturierte Oberfläche (18; 18a) aufweisen.Method according to claims 3 to 6,
characterized,
that a plurality of sleeve-shaped contact elements (15c, 15d) are used with different diameters, which are arranged concentrically to each other in that the wires (1) are each arranged in the interspace (24) between two contact elements (15c, 15d) and that the sleeve-shaped contact elements (15c, 15d) each have a structured surface (18; 18a). Verfahren nach einem der Ansprüche 2 bis 8,
dadurch gekennzeichnet,
dass das hülsenförmige Kontaktelement (15; 15a bis 15e) eine höhere mechanische Festigkeit aufweist als die Drähte (1).Method according to one of claims 2 to 8,
characterized,
that the sleeve-like contact element (15; 15a-15e) has a higher mechanical strength than the wires (1). Verfahren nach einem der Ansprüche 2 bis 9,
dadurch gekennzeichnet,
dass die Drähte (1) mit radialem Spiel innerhalb des hülsenförmigen Kontaktelements (15; 15a bis 15e) angeordnet werden.Method according to one of claims 2 to 9,
characterized,
in that the wires (1) are arranged with radial clearance within the sleeve-shaped contact element (15; 15a to 15e). Verwendung eines Verfahrens nach einem der Ansprüche 1 bis 10 bei der Kontaktierung von Wicklungsenden von Ankerwicklungen bei Elektromotoren oder Generatoren.Use of a method according to one of claims 1 to 10 in the contacting of winding ends of armature windings in electric motors or generators.
EP11168870.1A 2010-08-02 2011-06-07 Method for electrically contacting wires Active EP2416457B1 (en)

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