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EP3681689A1 - Laser-structured surface for an injection-moulding attachment of the surface - Google Patents

Laser-structured surface for an injection-moulding attachment of the surface

Info

Publication number
EP3681689A1
EP3681689A1 EP18765070.0A EP18765070A EP3681689A1 EP 3681689 A1 EP3681689 A1 EP 3681689A1 EP 18765070 A EP18765070 A EP 18765070A EP 3681689 A1 EP3681689 A1 EP 3681689A1
Authority
EP
European Patent Office
Prior art keywords
connector
surface treatment
laser
electrical conductor
region
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Withdrawn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
EP18765070.0A
Other languages
German (de)
French (fr)
Inventor
Alexander Schmid
Wolfgang Holzer
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.)
Hirschmann Automotive GmbH
Original Assignee
Hirschmann Automotive 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 Hirschmann Automotive GmbH filed Critical Hirschmann Automotive GmbH
Publication of EP3681689A1 publication Critical patent/EP3681689A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/009—Using laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3462—Cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/36—Plugs, connectors, or parts thereof

Definitions

  • the invention relates to a method for encapsulating a part of a connector which is arranged on an outer conductor having an electrical conductor of a line, with a plastic material, wherein in a region of the connector, which is encapsulated, a surface treatment is performed, according to the features of the preamble of claim 1.
  • this invention is concerned with sealing the junction of an electrical conductor connected to a connector.
  • it relates to the connection of the welding point of an electric wire, which is welded on a ring lug-like part (shunt).
  • the seal is to include the ring cable lug-like part before the beginning of the weld and subsequently extend over this weld to the isolation of the outgoing line and thus protect the weld against external loads (especially train or pressure relief) and seal (especially longitudinal water tightness).
  • the invention is therefore based on the object to improve such a generic method and to eliminate the disadvantages described above.
  • the surface treatment is carried out with a laser.
  • a surface treatment of the connector areas of the surface can be converted forming, in particular roughened, in which the plastic material can penetrate during the subsequent encapsulation to the required tightness, in particular longitudinal water tightness, to achieve.
  • the surface treatment by means of a laser preserves the mechanical structure of the connector, in particular of the area where the electrical conductor is connected to the connector so that it can not be damaged, as they occur in mechanically introduced imprints there.
  • the surface treatment is performed transversely to the longitudinal extent of the connector and around this.
  • the solution according to the invention resides in a laser-structured surface, which is applied to the plug connector, in particular the ring cable lug-like part, in a certain area and transversely around it and can then be overmoulded.
  • the surface treatment is carried out starting from an area of the connector up to the electrical conductor, in particular its outer jacket.
  • the connector is treated by laser in its surface, but also a part of the outer shell, in particular its end portion, starting from the area where the (exposed) electrical conductor is connected to the connector.
  • Such a surface treatment is readily possible because both metallic materials (connectors) and materials made of plastic (outer sheath) can be processed by means of the laser.
  • the encapsulation material used or intended in particular a thermoplastic or also a thermosetting plastic
  • This compound will meet the tightness requirements between the overmold and the metallic surface.
  • the tightness on the second mitentscheidenden side, namely the connected line material is ensured either by a conventional encapsulation process or also by, for example, a previously applied structured laser treatment of the insulating surface of the outgoing line.
  • the surface treatment takes place in the region in which the electrical conductor is connected to the plug connector, in particular welded, and / or the surface treatment takes place next to the region in which the electrical conductor is connected to the plug connector, in particular is welded.
  • a laser By means of a laser, only the area in which the plug connector is connected to the electrical conductor (for example, soldered, welded, crimped or the like) is treated in its surface.
  • a further area of the connector can be treated next to this connection area by means of a laser in its surface.
  • the outer jacket of the electrical conductor preferably in its end region, is treated by means of the laser in its surface.
  • the end region of the outer sheath, the connection area between the electrical conductor and the plug connector and possibly an area of the connector extending beyond this (in the direction of the contact region for a mating connector) are therefore very preferably treated by laser in its surface and the area thus changed in its surface structure overmoulded with the plastic material.
  • the invention thus provides, in particular, a laser-structured surface which is applied to a ring-lug-like part in a specific area and transversely encircled thereon, and the encapsulation material (in particular thermoplastic or else thermosetting plastic) used or provided in the encapsulation connects with the purpose-made structure of the lasered surface in a certain type and quality.
  • the encapsulation material in particular thermoplastic or else thermosetting plastic

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Method for encapsulating in a plastics material part of a plug-in connector that is arranged on an electrical conductor of a cable having an outer sheath, wherein a surface treatment is carried out in a region of the plug-in connector that is encapsulated, characterized in that the surface treatment is carried out with a laser.

Description

Laserstrukturierte Oberfläche für eine spritztechnische Anbindung der Oberfläche  Laser-structured surface for an injection-technical connection of the surface
Beschreibung description
Die Erfindung betrifft ein Verfahren zum Umspritzen eines Teiles eines Steckverbinders, der an einem einen Außenmantel aufweisenden elektrischen Leiter einer Leitung angeordnet ist, mit einem Kunststoffmaterial, wobei in einem Bereich des Steckverbinders, der umspritzt wird, eine Oberflächenbehandlung durchgeführt wird, gemäß den Merkmalen des Oberbegriffes des Patentanspruches 1 . The invention relates to a method for encapsulating a part of a connector which is arranged on an outer conductor having an electrical conductor of a line, with a plastic material, wherein in a region of the connector, which is encapsulated, a surface treatment is performed, according to the features of the preamble of claim 1.
Bei dieser Erfindung geht es allgemein um das Abdichten der Verbindungsstelle eines elektrischen Leiters, der mit einem Steckverbinder verbunden ist. Im speziellen geht es um die Verbindung der Schweißstelle einer elektrischen Leitung, die auf einem Ringkabelschuhähnlichen Teil (Shunt) angeschweißt ist. In general, this invention is concerned with sealing the junction of an electrical conductor connected to a connector. In particular, it relates to the connection of the welding point of an electric wire, which is welded on a ring lug-like part (shunt).
Die Abdichtung soll das Ringkabelschuhähnliche Teil vor dem Beginn der Schweißstelle umfassen und in weiterer Folge über diese Schweißstelle bis zur Isolation der abgehenden Leitung reichen und somit die Schweißstelle gegenüber den äußeren Belastungen schützen (insbesondere Zug- beziehungsweise Druckentlastung) und abdichten (insbesondere Längswasserdichtheit). The seal is to include the ring cable lug-like part before the beginning of the weld and subsequently extend over this weld to the isolation of the outgoing line and thus protect the weld against external loads (especially train or pressure relief) and seal (especially longitudinal water tightness).
Die Herausforderung ist, dass man einerseits Metall als Partner für die Umspritzung hat und andererseits die Kunststoffisolation vom abgehenden Leitungsmaterial (Außenmantel des elektrischen Leiters) als Partner berücksichtigen muss. Es gibt zu öldichten Versionen Strukturen, die durch mechanisch erzeugte Prägungen auf den Metallteilen (Kontaktbereiche) ein- beziehungsweise aufgebracht werden. Mit diesen Strukturen wurde schlussendlich das Ziel der Öldichtheit erreicht. The challenge is that, on the one hand, you have metal as a partner for overmoulding and, on the other, you have to consider the plastic insulation of the outgoing conductor material (outer sheath of the electrical conductor) as a partner. There are to oil-tight versions structures that are on or applied by mechanically generated imprints on the metal parts (contact areas). With these structures, finally, the goal of oil-tightness was achieved.
Die nun vorliegende, aber auch davon verwandte Geometrien vom Ringkabelschuhähnlichen Teilen (Shunt) wäre für solche Prägungen theoretisch zwar geeignet, würden aber an anderer Stelle zu Problemen führen. Insbesondere besteht grundsätzlich die Gefahr, dass sowohl bei Steckverbindern im Allgemeinen, aber auch bei dem ringkabelschuhähnlichen Teil, die Verbindungsstelle zu dem elektrischen Leiter hin bei solchen mechanisch erzeugten Prägungen, die unter hohem Druck stattfinden, beschädigt wird. Eine solche Beschädigung führt beispielsweise zu unzulässig hohen Übergangswiderständen, wobei gleichzeitig aber auch die Gefahr besteht, dass dort infolge von Vibrationen, die der Steckverbinder an seinem Einsatzort (zum Beispiel in einem Fahrzeug) ausgesetzt ist, Mikrorisse entstehen, die nicht nur zu den hohen Übergangswiderständen beitragen, sondern auch zu einer vollständigen elektrischen Unterbrechung führen können. The present but also related geometries of the ring-lug-like parts (shunt) would theoretically be suitable for such embossing, but would lead to problems elsewhere. In particular, there is a fundamental risk that both the connector in general, but also in the ring lug-like part, the connection point to the electrical conductor out in such mechanically generated imprints that take place under high pressure, is damaged. Such damage, for example, leads to inadmissibly high contact resistance, but at the same time there is also the risk that arise there due to vibrations that the connector is exposed at its place of use (for example in a vehicle), microcracks, not only to the high contact resistance but can also lead to a complete electrical break.
Der Erfindung liegt daher die Aufgabe zu Grunde, ein solches gattungsgemäßes Verfahren zu verbessern und die eingangs geschilderten Nachteile zu beseitigen. The invention is therefore based on the object to improve such a generic method and to eliminate the disadvantages described above.
Diese Aufgabe ist durch die Merkmale des Patentanspruches 1 gelöst. This object is solved by the features of claim 1.
Erfindungsgemäß ist vorgesehen, dass die Oberflächenbehandlung mit einem Laser durchgeführt wird. Mit einer solchen Oberflächenbehandlung des Steckverbinders können Bereiche der Oberfläche formgebend umgewandelt, insbesondere aufgeraut werden, in die das Kunststoffmaterial während der nachfolgenden Umspritzung eindringen kann, um die erforderliche Dichtheit, insbesondere Längswasserdichtheit, zu erzielen. Außerdem schont die Oberflächenbehandlung mittels eines Lasers das mechanische Gefüge des Steckverbinders, insbesondere desjenigen Bereiches, an dem der elektrische Leiter mit dem Steckverbinder verbunden ist, sodass es dort nicht zu Beschädigungen, wie sie bei mechanisch eingebrachten Prägungen entstehen, kommen kann. According to the invention, it is provided that the surface treatment is carried out with a laser. With such a surface treatment of the connector areas of the surface can be converted forming, in particular roughened, in which the plastic material can penetrate during the subsequent encapsulation to the required tightness, in particular longitudinal water tightness, to achieve. In addition, the surface treatment by means of a laser preserves the mechanical structure of the connector, in particular of the area where the electrical conductor is connected to the connector so that it can not be damaged, as they occur in mechanically introduced imprints there.
In Weiterbildung der Erfindung ist vorgesehen, dass die Oberflächenbehandlung quer zu der Längserstreckung des Steckverbinders und um diesen umlaufend durchgeführt wird. Die Lösung nach der Erfindung liegt in einer laserstrukturierten Oberfläche, die auf den Steckverbinder, insbesondere das ringkabelschuhähnliche Teil, in einem bestimmten Bereich und dort quer - umlaufend aufgebracht ist und anschließend umspritzt werden kann. In a further development of the invention, it is provided that the surface treatment is performed transversely to the longitudinal extent of the connector and around this. The solution according to the invention resides in a laser-structured surface, which is applied to the plug connector, in particular the ring cable lug-like part, in a certain area and transversely around it and can then be overmoulded.
In Weiterbildung der Erfindung ist vorgesehen, dass die Oberflächenbehandlung ausgehend von einem Bereich des Steckverbinders bis zu dem elektrischen Leiter, insbesondere dessen Außenmantel, durchgeführt wird. Somit wird nicht nur ein Bereich des Steckverbinders mittels Laser in seiner Oberfläche behandelt, sondern auch ein Teil des Außenmantels, insbesondere dessen Endbereich, der von dem Bereich ausgeht, an dem der (freigelegte) elektrische Leiter mit dem Steckverbinder verbunden ist. Eine solche Oberflächenbehandlung ist ohne weiteres möglich, da mittels des Lasers sowohl metallische Werkstoffe (Steckverbinder) als auch Werkstoffe aus Kunststoff (Außenmantel) bearbeitet werden können. Idealerweise wird somit der gesamte Bereich, bestehend aus zu umspritzendem Außenmantel und zu umspritzenden Bereich des Steckverbinders, mittels des Lasers behandelt, damit das nachfolgend umspritzte Kunststoffmaterial in die behandelten Bereiche eindringen und somit die geforderte Längswasserdichtheit sicherstellen kann. Das eingesetzte beziehungsweise vorgesehene Umspritzungsmaterial (insbesondere ein Thermoplast oder auch ein Duroplast) wird sich bei der Umspritzung mit der gezielt hergestellten Struktur der gelaserten Oberfläche in einer bestimmten Art und Qualität verbinden. Diese Verbindung wird die Dichtheitsanforderungen zwischen der Umspritzung und der metallischen Oberfläche erfüllen. Die Dichtheit auf der zweiten mitentscheidenden Seite, nämlich dem angeschlossenen Leitungsmaterial, wird entweder durch einen herkömmlichen Umspritzungsprozess oder ebenfalls durch zum Beispiel einer vorher aufgebrachten strukturierten Laserbehandlung der Isolationsoberfläche der abgehenden Leitung sichergestellt. In a development of the invention, it is provided that the surface treatment is carried out starting from an area of the connector up to the electrical conductor, in particular its outer jacket. Thus, not only a portion of the connector is treated by laser in its surface, but also a part of the outer shell, in particular its end portion, starting from the area where the (exposed) electrical conductor is connected to the connector. Such a surface treatment is readily possible because both metallic materials (connectors) and materials made of plastic (outer sheath) can be processed by means of the laser. Ideally, therefore, the entire area, consisting of outer casing to be encapsulated and the area of the connector to be encapsulated, is treated by means of the laser, so that the subsequently encapsulated plastic material can penetrate into the treated areas and thus ensure the required longitudinal water-tightness. The encapsulation material used or intended (in particular a thermoplastic or also a thermosetting plastic) will combine with the encapsulation with the selectively produced structure of the lasered surface in a specific type and quality. This compound will meet the tightness requirements between the overmold and the metallic surface. The tightness on the second mitentscheidenden side, namely the connected line material is ensured either by a conventional encapsulation process or also by, for example, a previously applied structured laser treatment of the insulating surface of the outgoing line.
In Weiterbildung der Erfindung ist vorgesehen, dass die Oberflächenbehandlung in dem Bereich erfolgt, in dem der elektrische Leiter mit dem Steckverbinder verbunden, insbesondere verschweißt ist, und/oder die Oberflächenbehandlung neben dem Bereich erfolgt, in dem der elektrische Leiter mit dem Steckverbinder verbunden, insbesondere verschweißt ist. Mittels Laser wird also nur der Bereich, in dem der Steckverbinder an dem elektrischen Leiter angeschlossen (zum Beispiel angelötet, angeschweißt, angecrimpt oder dergleichen) ist, in seiner Oberfläche behandelt. Alternativ oder ergänzend kann auch ein weiterer Bereich des Steckverbinders neben diesem Verbindungsbereich mittels Laser in seiner Oberfläche behandelt werden. Ebenfalls alternativ oder ergänzend dazu wird auch der Außenmantel des elektrischen Leiters, vorzugsweise in seinem Endbereich, mittels des Lasers in seiner Oberfläche behandelt. Ganz besonders bevorzugt wird also der Endbereich des Außenmantels, die Verbindungsstelle zwischen dem elektrischen Leiter und dem Steckverbinder und gegebenenfalls ein darüber hinausreichender Bereich des Steckverbinders (in Richtung des Kontaktbereiches für einen Gegensteckverbinder) mittels Lasers in seiner Oberfläche behandelt und der somit in seiner Oberflächenstruktur veränderte Bereich mit dem Kunststoffmaterial umspritzt. In a further development of the invention, it is provided that the surface treatment takes place in the region in which the electrical conductor is connected to the plug connector, in particular welded, and / or the surface treatment takes place next to the region in which the electrical conductor is connected to the plug connector, in particular is welded. By means of a laser, only the area in which the plug connector is connected to the electrical conductor (for example, soldered, welded, crimped or the like) is treated in its surface. Alternatively or additionally, a further area of the connector can be treated next to this connection area by means of a laser in its surface. Also alternatively or additionally, the outer jacket of the electrical conductor, preferably in its end region, is treated by means of the laser in its surface. The end region of the outer sheath, the connection area between the electrical conductor and the plug connector and possibly an area of the connector extending beyond this (in the direction of the contact region for a mating connector) are therefore very preferably treated by laser in its surface and the area thus changed in its surface structure overmoulded with the plastic material.
Die Erfindung stellt somit im Speziellen zur Verfügung eine laserstrukturierte Oberfläche, die auf ein ringkabelschuhähnliches Teil in einem bestimmten Bereich und dort quer - umlaufend aufgebracht ist und anschließend umspritzt wird, wobei das eingesetzte beziehungsweise vorgesehene Umspritzungsmaterial (insbesondere Thermoplast oder auch Duroplast) sich bei der Umspritzung mit der gezielt hergestellten Struktur der gelaserten Oberfläche in einer bestimmten Art und Qualität verbindet. The invention thus provides, in particular, a laser-structured surface which is applied to a ring-lug-like part in a specific area and transversely encircled thereon, and the encapsulation material (in particular thermoplastic or else thermosetting plastic) used or provided in the encapsulation connects with the purpose-made structure of the lasered surface in a certain type and quality.

Claims

Patentansprüche claims
1 . Verfahren zum Umspritzen eines Teiles eines Steckverbinders, der an einem einen Außenmatel aufweisenden elektrischen Leiter einer Leitung angeordnet ist, mit einem Kunststoffmaterial, wobei in einem Bereich des Steckverbinders, der umspritzt wird, eine Oberflächenbehandlung durchgeführt wird, dadurch gekennzeichnet, dass die Oberflächenbehandlung mit einem Laser durchgeführt wird. 1 . A method for overmolding a part of a connector, which is arranged on an outer conductor having an electrical conductor of a line, with a plastic material, wherein in a region of the connector, which is encapsulated, a surface treatment is performed, characterized in that the surface treatment with a laser is carried out.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass die2. The method according to claim 1, characterized in that the
Oberflächenbehandlung quer zu der Längserstreckung des Steckverbinders und um diesen umlaufend durchgeführt wird. Surface treatment transverse to the longitudinal extension of the connector and this is performed circumferentially.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die3. The method according to claim 1 or 2, characterized in that the
Oberflächenbehandlung sich ausgehend von einem Bereich des Steckverbinders bis zu dem elektrischen Leiter, insbesondere dessen Außenmantel, durchgeführt wird. Surface treatment is carried out starting from a region of the connector to the electrical conductor, in particular its outer jacket.
4. Verfahren nach Anspruch 1 , 2 oder 3, dadurch gekennzeichnet, dass als4. The method according to claim 1, 2 or 3, characterized in that as
Kunststoffmaterial für die Umspritzung ein Thermoplast oder ein Duroplast eingesetzt wird. Plastic material for the encapsulation of a thermoplastic or thermosetting plastic is used.
5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Oberflächenbehandlung in dem Bereich erfolgt, in dem der elektrische Leiter mit dem Steckverbinder verbunden, insbesondere verschweißt ist. 5. The method according to any one of the preceding claims, characterized in that the surface treatment is carried out in the region in which the electrical conductor connected to the connector, in particular welded.
6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Oberflächenbehandlung neben dem Bereich erfolgt, in dem der elektrische Leiter mit dem Steckverbinder verbunden, insbesondere verschweißt ist. 6. The method according to any one of the preceding claims, characterized in that the surface treatment takes place in addition to the area in which the electrical conductor connected to the connector, in particular welded.
7. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Oberflächenbehandlung bei einem ringschuhähnlichen Teil angewendet wird. 7. The method according to any one of the preceding claims, characterized in that the surface treatment is applied to a ring shoe-like part.
EP18765070.0A 2017-09-11 2018-08-30 Laser-structured surface for an injection-moulding attachment of the surface Withdrawn EP3681689A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017120894 2017-09-11
PCT/EP2018/073315 WO2019048325A1 (en) 2017-09-11 2018-08-30 Laser-structured surface for an injection-moulding attachment of the surface

Publications (1)

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EP3681689A1 true EP3681689A1 (en) 2020-07-22

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Country Status (5)

Country Link
US (1) US20210086415A1 (en)
EP (1) EP3681689A1 (en)
CN (1) CN111051035A (en)
DE (1) DE102018121171A1 (en)
WO (1) WO2019048325A1 (en)

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CN111051035A (en) 2020-04-21
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