EP2485337B1 - Coupling unit for lines - Google Patents

Coupling unit for lines Download PDF

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Publication number
EP2485337B1
EP2485337B1 EP12305090.8A EP12305090A EP2485337B1 EP 2485337 B1 EP2485337 B1 EP 2485337B1 EP 12305090 A EP12305090 A EP 12305090A EP 2485337 B1 EP2485337 B1 EP 2485337B1
Authority
EP
European Patent Office
Prior art keywords
capsule part
cable
capsule
injection
plug body
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.)
Active
Application number
EP12305090.8A
Other languages
German (de)
French (fr)
Other versions
EP2485337A2 (en
EP2485337A3 (en
Inventor
Otto Nachbauer
Rainer Lang
Martin Voit
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.)
Nexans SA
Original Assignee
Nexans SA
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 Nexans SA filed Critical Nexans SA
Priority to EP12305090.8A priority Critical patent/EP2485337B1/en
Priority to US13/362,163 priority patent/US8550846B2/en
Publication of EP2485337A2 publication Critical patent/EP2485337A2/en
Publication of EP2485337A3 publication Critical patent/EP2485337A3/en
Application granted granted Critical
Publication of EP2485337B1 publication Critical patent/EP2485337B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/504—Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet

Definitions

  • the present invention relates to a coupling part for lines, and / or a method for producing a coupling part.
  • a coupling part also referred to as a plug
  • the arranged in separate recesses of the contact carrier contacts are accessible from a contact side of the coupling part and contacted on the opposite terminal side of the contact carrier of the conductors.
  • the conductors, including a stripped portion, preferably including a cable portion with jacket, of an injection-molded protective or plug body comprises, which may adjoin the terminal side of the contact carrier and / or optionally the contact carrier in sections or completely.
  • the contact carrier may be formed integrally with the injection-molded protective or plug body and e.g. be prepared in that contacts in an injection mold sections are directly encapsulated with the mass that forms the injection-molded protective or plug body.
  • the coupling part according to the invention is characterized in that it forms a watertight guide of the line at the end at which the line enters the coupling part.
  • the DE 3417811 C1 describes a method for attaching a coupling part at the end of an electrical line, in which the coupling part is produced by encapsulation of a portion of the cable and the contact carrier connected thereto.
  • the DE 20 2009 003 546 U1 describes sensor with a housing which is molded around a connecting cable, which is guided in a sleeve. Within the sleeve, the injection molding compound presses an elastic V-shaped seal displaceable in the sleeve against an O-ring encompassed by the sleeve and resting on the cable.
  • the DE 42 02 813 C1 describes a plug whose contact side is formed by a connector housing. Opposite the contact side, the plug housing is connected to a screw member which is thereby sealed against the cable sheath, that an O-ring is loaded by the screw member against the cable sheath.
  • the screw member is comprised of injection molding compound which contacts the O-ring.
  • the O-ring may be protected from ingress of injection molding compound by a second O-ring disposed in a groove of the screw member on the cable sheath.
  • the object of the invention is to provide an alternative coupling part and a method for the production thereof, wherein in particular a watertight guidance of the cable sheath into the coupling part is produced.
  • the object is achieved with a coupling part with at least one contact in an injection-molded protective or Plug body, in the first end of a cable, which in particular has a jacket made of high temperature resistant material, is guided, wherein the injection-molded protective or plug body has at its first end on the jacket of the cable all around tight-fitting sealing element, in particular a non-positively and / or or cohesively comprehensive sealing element which is surrounded by a capsule part which is at least partially enclosed by the protective or plug body.
  • the sealing element is encompassed by a capsule part and loaded by the capsule part against the cable.
  • the sealing element may be a one-piece or multi-part sealing ring.
  • the sealing element is also referred to as a sealing ring.
  • the at least one contact is defined in a recess of a contact carrier, which is formed by the injection-molded protective or plug body, or in a recess of a contact carrier, the at least partially, preferably completely, from the injection-molded protective or plug body to an access opening to the at least one contact is covered by the injection-molded protective or plug body.
  • a contact carrier which is not formed integrally with the injection-molded protective or plug body is integrally connected to the injection-molded protective or plug body.
  • the at least one contact may be hollow, such that a mating contact can be inserted from the access opening, and / or the at least one contact is in a portion of the protective or plug body adjacent to the access opening, opposite the second end of the protective or plug body the first end, at a distance from the plug body comprises, so that a mating contact can be pushed around the contact around.
  • the cable encompassed by the injection-molded protective or plug body preferably has a jacket of temperature-resistant polymer, wherein the jacket does not make a material-locking connection with the injection-molded protective or plug body. Opposite the first end of the injection-molded protective or plug body is its second end, which adjoins the contact carrier or comprises these sections in sections. Alternatively, the plug body can form the contact carrier at its second end.
  • the cable has at least one core, preferably at least two or three wires, which may be insulated electrical conductors and / or insulated optical conductors, which are conductively connected to the contacts on the contact side of the contact carrier.
  • the sealing ring with its inner surface is non-positively and / or materially on the jacket of the cable, or to the full extent of the cable sheath, and is on its opposite outer surface, and in addition to one or both of its end faces, which its inner surface with the outer surface connect, encapsulated by the first capsule part and the second capsule part.
  • the sealing ring is dimensioned or has such an inner cross-section that it can be frictionally arranged around a section of the cable sheath so that it frictionally surrounds the sheath of the cable and preferably lies with its inner surface over the entire circumference on the sheath.
  • the sealing ring is frictionally engaged by a first portion of a first capsule part, said first portion of the first capsule member loading the sealing ring against the cable disposed therein and extending over the axial length occupied by the sealing ring, preferably over the axial length of the sealing ring assumes in its loaded against the cable sheath state. In this way, the sealing ring produces a non-positive longitudinal seal along the cable.
  • This first section of the first capsule part can abut with a terminal end face on the optional second capsule part.
  • the first capsule part preferably has a second section which has a smaller inner cross section than its first section, so that the second section of the first Encapsulated capsule part with its end face against an end face of the sealing ring, in particular against the end face of the sealing ring, which is opposite to the second capsule part.
  • the coupling part has an injection-molded protective or plug body, in whose first end a cable is guided, whose opposite second end adjoins a contact carrier having at least one recess and a contact arranged therein or has a contact carrier with at least one recess and a contact arranged therein which is connected on the connection side of the contact carrier with a conductor of the cable, wherein a sealing element rests all around tightly on the jacket of the cable, the sealing element comprises a first portion of a first capsule part and is loaded against the jacket of the cable and a second capsule part, which includes the shell positively and / or non-positively, is arranged with an end face adjacent to an end face of the first portion of the first capsule part and the sealing element and the injection-molded protective or plug body at least partially comprises the first capsule part and the second capsule part and with this is moisture-proof, or consists thereof.
  • the coupling part consists of the injection-molded protective or plug body, the first capsule part and the sealing element and the second capsule part, which are arranged around the cable sheath and connected to the conductors of the cable
  • the coupling part cohesively adjoins the Contact carrier on or the contact carrier is formed integrally with the injection-molded protective or plug body, wherein the seal between the injection-molded protective or plug body and the cable sheath consists of the first and second capsule arranged between the sealing member which rests on the cable, in particular in a cable sheath of sheath material, which does not form a material connection with the injection-molded protective or plug body.
  • a first capsule part is preferably arranged colinearly adjacent to the second capsule part, so that the first and second capsule parts comprise sections which adjoin one another directly along their common longitudinal central axis, in which the cable is arranged.
  • the second capsule part has an internal cross section, e.g. is cylindrical, which is at least equal to the inner cross section of the sealing ring or larger than the inner cross section of the sealing ring, so that the second capsule part has an inner cross section which is at least equal to or greater than the disposed therein jacket portion of the cable.
  • the second capsule part can be pushed onto the section of the cable sheath which adjoins the sheath section enclosed by the sealing ring.
  • First and second capsule members are preferably circumferentially closed to be slid axially onto the cable, but may alternatively have an axial opening to be radially slid onto the cable.
  • the sealing ring is comprised of a first portion of a first capsule part and radially loaded against the jacket of the cable, wherein preferably the end faces of the sealing ring between an end face of the second capsule part and an end face of a second portion of the first capsule part are arranged, and preferably the end faces of the Sealing ring between a face of the second capsule part and an end face of the second portion of the first capsule part are non-positively and / or positively arranged.
  • the inner cross sections of the first capsule part and the second portion of the first capsule part and the inner cross section of the sealing ring are each cylindrical and arranged about a common longitudinal central axis.
  • a cable is arranged along this common axis of the second capsule part, the second section of the first capsule part and the sealing ring arranged between them, which is encompassed circumferentially by the first section of the first capsule part.
  • the first portion of the first capsule part comprises the sealing ring circumferentially, this first portion of the first capsule part loads the sealing ring against the jacket of the cable. Due to the preferred arrangement of the sealing ring between an end face of the second capsule part and an end face of the second portion of the first capsule part of the sealing ring is secured against axial deflection.
  • the second capsule part is arranged in the direction of the second end of the coupling part and the adjacent first capsule part is arranged in the direction of the first end of the coupling part.
  • the second capsule part may be arranged on the first end of the coupling part and the adjacent first capsule part in the direction of the second end thereof.
  • a portion of the second capsule part preferably a portion of the first capsule part, project beyond the first end of the coupling part or the first end of the injection-molded protective or plug body, wherein preferably the second portion of the first capsule part has an internal cross-section, which is a cable arranged therein includes positively and projects beyond the first end of the coupling part or of the injection-molded protective or plug body.
  • the first and second capsule parts are stable against deformation under the pressure of the injection molding compound, so that the sealing element is not axially deformed during injection molding.
  • the first and second capsule parts preferably have sufficient stability against deformation due to the pressure occurring during injection molding of the protective or plug body.
  • Injection molding pressure may be in the form 150-250 bar, especially 150-200 bar, at the temperature of the flowable molding compound of the protective or plug body, e.g. at 180 to 320 ° C.
  • the first and second capsule parts are arranged tightly against one another and against the injection molding compound at their end faces, so that the injection molding compound can not penetrate between the first and second capsule parts during injection molding.
  • This positive and / or non-positive or tight arrangement of the first and second capsule part against the cable sheath and the stability of the first and second capsule part against the pressure occurring during injection molding of the protective or plug body protects the sealing element from deformation and from contact with the injection molding material and preserves the seal made by the sealing element to the jacket.
  • This stability of the first and second capsule part is formed by the geometry, wall thickness and by the material of the first and second capsule part.
  • a suitable geometry in particular a wall cross-section or wall profile, as well as a wall thickness for a material of the first and second capsule part for a stability sufficient against the pressure occurring during injection molding of the protective or plug body to the permanent deformation of the first and second capsule part and to prevent the penetration of injection molding compound to the sealing element comprised of the first and second capsule part can be carried out in the usual way.
  • first and second capsule part have cylindrical recesses which form a press or clamped fit to the cable jacket, which prevent the penetration of injection molding compound to the sealing element at temperature and pressure of the injection molding.
  • a fit may, for example, have a recess which has a tolerance or a distance of max. 0.2 mm, preferably max. 0.1 mm, more preferably max. 0.08 to max. 0.01 or up to max. 0.02 to max.
  • the cylindrical recesses of the first and second capsule part may have an axial length of, for example, 1 to 20 mm, preferably 3 to 15 or 10 mm. Preferably, the recesses of the first and second capsule part have the same diameter.
  • first and / or second capsule part consist of a material which forms a cohesive connection with the injection-molding material during encapsulation with the material for the injection-molded protective or plug body.
  • first and / or second capsule parts may be made of PA (polyamide) and / or PBT (polybutylene terephthalate) and the injection molding material may be e.g. a polymer blend based on polyamide and / or polyurethane.
  • a cohesive connection has such a strength that under a tensile load, e.g. at a surface load of 0.1 to 10000 Pa, in particular 1 to 1000 Pa or in the peel test at 1 to 10,000 N, in particular 10 to 1000 N per cm width of the connecting surface is stable, in particular longitudinally watertight.
  • the jacket of the cable preferably consists of a material which does not form a material connection with the injection molding material, in particular of a material containing or consisting of high-temperature resistant material, eg of FEP, XPUR or XPE.
  • the coupling part at least in the injection-molded section, in which it at least partially comprises the first and second capsule part and which extends in particular from the entry of the cable into the coupling part to the contact carrier, of injection-molded material, which further preferably has a material connection with the outer Surface of the first capsule part and / or the outer surface of the second capsule part, first and second capsule part and the sealing element comprising these, as well as a portion of the cable and its wires.
  • the first capsule part is thereby fixed with its end face against the adjacent end face of the second portion of the second capsule part, that first and second capsule part are cohesively covered by the injection-molded protective or plug body, which adjoins the contact carrier and this optionally includes sections , or the contact carrier integrally formed.
  • the first and the second capsule part can be connected to one another, in particular engage with one another, for example with one another positively and / or non-positively connected, For example, be pressed non-positively, locked or screwed, or be glued or welded together, in particular ultrasonically welded.
  • connection between the first and second capsule part may, for example, be made along the adjoining end faces of the second capsule part and the first part of the first capsule part.
  • a coupling part according to the invention with a cable connected thereto has at its first end a cable guided in sections in the injection-molded protective or plug body, which cable is surrounded by a second capsule part arranged around the cable jacket and a first capsule part arranged around the cable sheath and a first one Section of the first capsule part comprises a sealing ring arranged therein and this loaded against the jacket of the cable, wherein preferably the sealing ring between a portion of the end face of the second capsule part and an end face of a second portion adjacent to the first portion of the first capsule portion is disposed or between This end faces is bordered, is preferably frictionally between these spaced end faces of the second capsule part and the first portion of the first capsule part is enclosed.
  • the method for producing a coupling part according to the invention with the cable connected thereto, in addition to the contacting of the conductor contained in the cable with contacts, which are optionally arranged in recesses of an additional or separate or an integrally formed with the protective or plug body contact carrier, at the second end is disposed of the coupling part, arranging a sealing ring, the first capsule part and adjacent thereto second capsule part around the cable, wherein the first portion of the first capsule part surrounds the sealing ring and this radially fully loaded against the jacket of the cable.
  • the sealing ring is preferably arranged between the second capsule part and the second portion adjoining the first portion of the first capsule part, preferably clamped with its end faces between a second capsule part and the first portion of the first capsule part.
  • the sealing element is first arranged in the second portion of the first capsule part and the second capsule part is arranged against the first capsule part and connected thereto, wherein the first and second capsule part and the sealing element comprised form a common cylindrical recess.
  • the cable is arranged in the cylindrical recess formed by the first and second capsule part and the sealing element encompassed by the latter, for example by inserting the cable into this recess.
  • the protective or plug body is by overmolding at least a portion of the first and second capsule part, in particular of the first portion of the first capsule part, at least adjacent to the contact carrier made with a crosslinkable or curable plastic material, which forms a material connection with the overmolded portions of the outer surfaces of the first and / or second capsule part ,
  • the sealing element can first be arranged in the first section of the first capsule part and the second capsule part is arranged against and connected to an end face of the first capsule part, wherein the second portion of the first capsule part opposite the second capsule part and the second capsule part with the sealing element on a Form center axis of a cylindrical recess.
  • the recesses of the second portion of the first capsule part and the second capsule part have diameters which form a press or Klemmpassung to the outer diameter of the cable sheath and preferably an axial length which are adapted, the penetration of injection molding material between the cable sheath and the second portion of the first capsule part or between the cable sheath and the second capsule part to prevent the sealing element at temperature and pressure of the injection molding.
  • the outer surfaces of the first and second capsule part may each be cylindrical, or preferably have to their common longitudinal axis radial and / or axial projections and depressions, for example in the form of projections and / or radially encircling grooves, in particular in the form of a thread to form-fitting Make connection with the protective or plug body.
  • first portion of the first capsule part on its outer surface grooves or a thread, while the second portion of the second
  • Capsule part projects beyond the first end of the housing and further optionally comprises engagement surfaces for a tool.
  • the portion of the injection-molded protective or plug body comprising the first and second capsule parts has mating surfaces mating thereto, e.g. Grooves or an internal thread, which is produced in the manufacturing method according to the invention by injection molding of the housing material by the contact with the capsule part.
  • the inner surface of the first portion of the first capsule part, which comprises the sealing ring may be cylindrical or optionally taper towards the second portion or towards the second capsule part, for example as a conical surface.
  • the sealing ring has a cylindrical inner surface and an outer surface which is suitable for the inner surface of the first portion, in particular is cylindrical or has a conical surface.
  • the sealing ring may consist of a plurality of axially arranged partial rings.
  • a sealing ring may have one or more grooves running around its outer surface and / or on its inner surface.
  • the sealing ring has a continuous cylindrical inner surface, a cylindrical outer surface, in which at least one circumferential, self-contained groove is formed, and vertical surfaces to the inner surface.
  • sealing element in the preferred embodiment is shown as a sealing ring; like reference numerals denote functionally identical elements.
  • FIG. 1 shows a coupling part, at the first end 1, a cable is guided, the wires 14 are stripped in a section, so that the conductors 13 are electrically connected to the contacts 12.
  • the contacts 12 are arranged in recesses 11 of a contact carrier 10, which is formed integrally with the protective or plug body 16.
  • the protective or plug body 16 extends from its first end 1 to its opposite second end 3, on which the contact carrier is arranged.
  • a sealing ring 4 is arranged in a form-fitting manner around the cable 2, which is encompassed by a first section 5 of a first capsule part 6 in a form-fitting manner, which is molded around the protective or plug body 16 in a positive and cohesive manner.
  • a second capsule part 7 is disposed adjacent, so that the sealing ring 4 is axially enclosed by an end face of the second capsule part 7 and an end face of the second portion of the first capsule part 6, while the sealing ring 4 is circumferentially from the first Section 5 of the first capsule part 6 is loaded against the cable sheath 15.
  • the protective or plug body 16 extends along the cable 2 via the first and second capsule part 6, 7, and over a portion of the cable 2, which extends on the side of the sealing ring opposite the second end, so that the protective or Plug body 16 completely covers the first and second capsule part.
  • the protective or plug body 16 forms the contact carrier in one piece, so that the contacts 12 are fixed in recesses 11 of the contact carrier, which are formed together with the protective or plug body 16 during an injection molding step.
  • the FIG. 2 shows a coupling part, which has at its first end 1 a guide for a cable 2, and at the opposite second end 3, a contact carrier 10 to which the protective or plug body 16 adjacent, with recesses 11, in each of which a contact 12 is arranged ,
  • the contacts 12 are conductively connected to the conductors 13 of the cable 2.
  • the contact carrier is one of the protection or Plug body 16 separate element with which the protective or plug body 16 is integrally connected.
  • a sealing ring 4 is frictionally arranged around the cable 2, which rests circumferentially sealingly on the jacket 15.
  • the sealing ring 4 is bordered by the first portion 5 of the first capsule part 6.
  • the first section 5 of the first capsule part 6 adjoins with its end face against an end face of the second capsule part 7 arranged around a common longitudinal central axis and has a second section 8 on its opposite end face.
  • the second portion 8 of the first capsule part 6 has a smaller inner diameter than the first portion 5, so that the second capsule part 7 facing end surface of the second portion 8 is disposed against an end face of the sealing ring 4.
  • An injection-molded protective or plug body 16 extends between the terminal side of the contact carrier 10 to the first portion 5 of the first capsule part 6, so that thus the first portion 5 of the first capsule part 6 is encompassed by the injection-molded protective or plug body 16, the sealing ring 4 loaded against the jacket 15.
  • a reliable longitudinal sealing is therefore formed by the sealing ring 4 loaded against the jacket 15, the first section 5 of the first capsule part 6 arranged around the sealing ring 4 and the injection-molded protective or plug body 16 which bears against it integrally extends to the contact carrier 10 and connected to the contacts 12 conductors 13, which are optionally present in sections as cores 14 without sheath 15, and preferably a jacket 15 surrounded by the portion of the cable 2, between the second and first capsule part 6, 7 on the one hand and the contact carrier 10 on the other.
  • the portion of the housing formed by the injection-molded protective or plug body 16 at the first end 1 of the coupling part is arranged in a form-fitting manner around the second capsule part 7 and the first section 5 of the first capsule part 6 adjacent thereto, while at least a part of the second section 8 of the first first capsule part 6 via the first end 1 of the coupling part or via the first end 1 of the injection-molded Protective or plug body 16 protrudes and is arranged in a form-fitting or spaced around the cable 2.
  • FIG. 3 shows a further embodiment with a contact carrier 10, which is injection molded integrally with the protective or plug body 16 and the first capsule portion partially projects beyond the injection-molded protective or plug body 16 beyond its first end 1 addition.

Description

Die vorliegende Erfindung betrifft ein Kupplungsteil für Leitungen, und bzw. ein Verfahren zur Herstellung eines Kupplungsteils. Ein solches Kupplungsteil, auch als Stecker bezeichnet, weist für einzelne Leiter eines angeschlossenen Kabels einen Kontakt auf, der in einer Ausnehmung bzw. Bohrung eines Kontaktträgers angeordnet ist. Die in voneinander getrennten Ausnehmungen des Kontaktträgers angeordneten Kontakte sind von einer Kontaktseite des Kupplungsteils zugänglich und auf der gegenüberliegenden Anschlußseite des Kontaktträgers von den Leitern kontaktiert. Die Leiter sind einschließlich eines abgemantelten Abschnitts, vorzugsweise einschließlich eines Kabelabschnitts mit Mantel, von einem spritzgegossenen Schutz- oder Steckerkörper umfasst, der an die Anschlußseite des Kontaktträgers angrenzen kann und/oder optional den Kontaktträger abschnittsweise oder vollständig umfassen kann. Optional kann der Kontaktträger einstückig mit dem spritzgegossenen Schutz- oder Steckerkörper ausgebildet sein und z.B. dadurch hergestellt werden, dass Kontakte in einer Spritzgußform abschnittsweise unmittelbar mit der Masse umspritzt werden, die den spritzgegossenen Schutz- oder Steckerkörper bildet.The present invention relates to a coupling part for lines, and / or a method for producing a coupling part. Such a coupling part, also referred to as a plug, has a contact for individual conductors of a connected cable which is arranged in a recess or bore of a contact carrier. The arranged in separate recesses of the contact carrier contacts are accessible from a contact side of the coupling part and contacted on the opposite terminal side of the contact carrier of the conductors. The conductors, including a stripped portion, preferably including a cable portion with jacket, of an injection-molded protective or plug body comprises, which may adjoin the terminal side of the contact carrier and / or optionally the contact carrier in sections or completely. Optionally, the contact carrier may be formed integrally with the injection-molded protective or plug body and e.g. be prepared in that contacts in an injection mold sections are directly encapsulated with the mass that forms the injection-molded protective or plug body.

Das erfindungsgemäße Kupplungsteil zeichnet sich dadurch aus, dass es an dem Ende, an dem die Leitung in das Kupplungsteil eintritt, eine wasserdichte Führung der Leitung ausbildet.The coupling part according to the invention is characterized in that it forms a watertight guide of the line at the end at which the line enters the coupling part.

Stand der TechnikState of the art

Die DE 3417811 C1 beschreibt ein Verfahren zum Anbringen eines Kupplungsteils am Ende einer elektrischen Leitung, bei dem das Kupplungsteil durch Umspritzen eines Abschnitts des Kabels und des daran angeschlossenen Kontaktträgers herstellt wird.The DE 3417811 C1 describes a method for attaching a coupling part at the end of an electrical line, in which the coupling part is produced by encapsulation of a portion of the cable and the contact carrier connected thereto.

An diesem bekannten Kupplungsteil ist nachteilig, dass eine wasserdichte Verbindung zwischen der Leitung und dem Gehäuse des Kupplungsteils nicht ohne weiteres hergestellt wird, sondern nur dann, wenn das Spritzgußmaterial eine stoffschlüssige Verbindung mit dem Kabelmantel eingeht.In this known coupling part is disadvantageous that a watertight connection between the line and the housing of the coupling part is not readily prepared, but only when the injection molding material enters into a cohesive connection with the cable sheath.

Die DE 20 2009 003 546 U1 beschreibt Sensor mit einem Gehäuse, das um ein Anschlußkabel umspritzt ist, das in einer Hülse geführt ist. Innerhalb der Hülse drückt die Spritzgußmasse eine in der Hülse verschiebliche elastische V-förmige Dichtung gegen einen von der Hülse umfassten O-Ring, der auf dem Kabel liegt.The DE 20 2009 003 546 U1 describes sensor with a housing which is molded around a connecting cable, which is guided in a sleeve. Within the sleeve, the injection molding compound presses an elastic V-shaped seal displaceable in the sleeve against an O-ring encompassed by the sleeve and resting on the cable.

Die DE 42 02 813 C1 beschreibt einen Stecker, dessen Kontaktseite von einem Steckergehäuse gebildet ist. Gegenüber der Kontaktseite ist das Steckergehäuse mit einem Schraubglied verbunden, das dadurch gegen den Kabelmantel abgedichtet ist, dass ein O-Ring vom Schraubglied gegen den Kabelmantel belastet ist. Das Schraubglied ist von Spritzgußmasse umfasst, die den O-Ring kontaktiert. Der O-Ring kann durch einen in einer Nut des Schraubglieds am Kabelmantel angeordneten zweiten O-Ring vor dem Eindringen von Spritzgußmasse geschützt sein.The DE 42 02 813 C1 describes a plug whose contact side is formed by a connector housing. Opposite the contact side, the plug housing is connected to a screw member which is thereby sealed against the cable sheath, that an O-ring is loaded by the screw member against the cable sheath. The screw member is comprised of injection molding compound which contacts the O-ring. The O-ring may be protected from ingress of injection molding compound by a second O-ring disposed in a groove of the screw member on the cable sheath.

Aufgabe der ErfindungObject of the invention

Der Erfindung stellt sich die Aufgabe, ein alternatives Kupplungsteil und ein Verfahren zu dessen Herstellung, bereitzustellen, wobei insbesondere eine wasserdichte Führung des Kabelmantels in das Kupplungsteil hergestellt wird.The object of the invention is to provide an alternative coupling part and a method for the production thereof, wherein in particular a watertight guidance of the cable sheath into the coupling part is produced.

Allgemeine Beschreibung der ErfindungGeneral description of the invention

Bei der Vorbereitung der Erfindung hat sich herausgestellt, dass eine wasserdichte Verbindung zwischen dem Material, aus dem das Gehäuse des Kupplungsteils durch Spritzgießen an den Kontaktträger und um das Kabel hergestellt wird, nur dann wasserdicht erzeugt wird, wenn das Spritzgußmaterial eine stoffschlüssige Verbindung mit dem Mantel des Kabels eingeht. Dies ist insbesondere bei hochtemperaturbeständigen Mantelmaterialien nicht der Fall, wie beispielsweise bei Leitungsmänteln aus FEP (fluoriertem Ethylen - Propylen- Copolymer) oder Leitungsmänteln mit oder aus strahlenvernetztem Polymer, z.B. strahlenvernetztem Polyurethan (X-PUR) oder strahlenvernetztem Polyethylen (XPE), wenn z.B. PA oder PUR als Spritzgußmaterial verwendet wird.In the preparation of the invention, it has been found that a watertight connection between the material from which the housing of the coupling part is produced by injection molding to the contact carrier and the cable, is only waterproof when the injection molding material is a material connection with the jacket the cable is received. This is not the case in particular with high temperature resistant jacket materials, such as FEP (fluorinated ethylene-propylene copolymer) jacket sheaths or conduit sheaths with or from radiation crosslinked polymer, e.g. radiation cured polyurethane (X-PUR) or radiation crosslinked polyethylene (XPE), when e.g. PA or PUR is used as injection molding material.

Die Erfindung löst die Aufgabe mit den Merkmalen der Ansprüche 1 bzw. 10. Vorteilhafte Weiterbildungen der Erfindung sind den abhängigen Ansprüchen zu entnehmen. Insbesondere wird die Aufgabe gelöst mit einem Kupplungsteil mit einem zumindest einen Kontakt in einem spritzgegossenen Schutz-oder Steckerkörper, in dessen erstem Ende ein Kabel, das insbesondere einen Mantel aus hochtemperaturbeständigem Material aufweist, geführt ist, wobei der spritzgegossene Schutz-oder Steckerkörper an seinem ersten Ende ein am Mantel des Kabels rundum dicht anliegendes Dichtungselement aufweist, insbesondere ein den Mantel kraftschlüssig und/oder stoffschlüssig umfassendes Dichtungselement aufweist, das von einem Kapselteil umfasst ist, welches zumindest anteilig vom Schutz- oder Steckerkörper umschlossen ist. Das Dichtungselement ist von einem Kapselteil umfasst und durch das Kapselteil gegen das Kabel belastet. Das Dichtungselement kann ein einteiliger oder mehrteiliger Dichtungsring sein. Für die Zwecke der Erfindung wird das Dichtungselement auch stellvertretend als Dichtungsring bezeichnet.The invention achieves the object with the features of claims 1 and 10, respectively. Advantageous developments of the invention can be found in the dependent claims. In particular, the object is achieved with a coupling part with at least one contact in an injection-molded protective or Plug body, in the first end of a cable, which in particular has a jacket made of high temperature resistant material, is guided, wherein the injection-molded protective or plug body has at its first end on the jacket of the cable all around tight-fitting sealing element, in particular a non-positively and / or or cohesively comprehensive sealing element which is surrounded by a capsule part which is at least partially enclosed by the protective or plug body. The sealing element is encompassed by a capsule part and loaded by the capsule part against the cable. The sealing element may be a one-piece or multi-part sealing ring. For the purposes of the invention, the sealing element is also referred to as a sealing ring.

Der zumindest eine Kontakt ist in einer Ausnehmung eines Kontaktträgers festgelegt, der vom spritzgegossenen Schutz- oder Steckerkörper gebildet ist, oder in einer Ausnehmung eines Kontaktträgers, der vom spritzgegossenen Schutz- oder Steckerkörper bis auf eine Zugangsöffnung zu dem zumindest einen Kontakt zumindest anteilig, vorzugsweise vollständig vom spritzgegossenen Schutz- oder Steckerkörper umfasst ist. Optional ist ein nicht einstückig mit dem spritzgegossenen Schutz- oder Steckerkörper ausgebildeter Kontaktträger stoffschlüssig mit dem spritzgegossenen Schutz- oder Steckerkörper verbunden. Der zumindest eine Kontakt kann hohl sein, so dass ein Gegenkontakt von der Zugangsöffnung eingeschoben werden kann, und/oder der zumindest eine Kontakt ist in einem an die Zugangsöffnung angrenzenden Abschnitt des Schutz- oder Steckerkörpers, der am zweiten Ende des Schutz- oder Steckerkörpers gegenüber dem ersten Ende liegt, mit Abstand vom Steckerkörper umfasst, so dass ein Gegenkontakt um den Kontakt herum aufschiebbar ist. Das vom spritzgegossenen Schutz- oder Steckerkörper umfasste Kabel weist vorzugsweise einen Mantel aus temperaturbeständigem Polymer auf, wobei der Mantel keine stoffschlüssige Verbindung mit dem spritzgegossenen Schutz- oder Steckerkörper eingeht. Gegenüber dem ersten Ende des spritzgegossenen Schutz- oder Steckerkörpers ist dessen zweites Ende, das an den Kontaktträger angrenzt oder diesen abschnittsweise umfänglich umfasst. Alternativ kann der Steckerkörper an seinem zweiten Ende den Kontaktträger ausbilden. Das Kabel weist mindestens eine Ader, vorzugsweise zumindest zwei oder drei Adern auf, die isolierte elektrische Leiter und/oder isolierte optische Leiter sein können, die auf der Kontaktseite des Kontaktträgers leitend mit den Kontakten verbunden sind.The at least one contact is defined in a recess of a contact carrier, which is formed by the injection-molded protective or plug body, or in a recess of a contact carrier, the at least partially, preferably completely, from the injection-molded protective or plug body to an access opening to the at least one contact is covered by the injection-molded protective or plug body. Optionally, a contact carrier which is not formed integrally with the injection-molded protective or plug body is integrally connected to the injection-molded protective or plug body. The at least one contact may be hollow, such that a mating contact can be inserted from the access opening, and / or the at least one contact is in a portion of the protective or plug body adjacent to the access opening, opposite the second end of the protective or plug body the first end, at a distance from the plug body comprises, so that a mating contact can be pushed around the contact around. The cable encompassed by the injection-molded protective or plug body preferably has a jacket of temperature-resistant polymer, wherein the jacket does not make a material-locking connection with the injection-molded protective or plug body. Opposite the first end of the injection-molded protective or plug body is its second end, which adjoins the contact carrier or comprises these sections in sections. Alternatively, the plug body can form the contact carrier at its second end. The cable has at least one core, preferably at least two or three wires, which may be insulated electrical conductors and / or insulated optical conductors, which are conductively connected to the contacts on the contact side of the contact carrier.

Erfindungsgemäß liegt der Dichtungsring mit seiner Innenfläche kraft- und/oder stoffschlüssig auf dem Mantel des Kabels, bzw. um den vollständigen Umfang des Kabelmantels, und ist auf seiner gegenüberliegenden Außenfläche, sowie zusätzlich auf einer oder beider seiner Stirnflächen, die seine Innenfläche mit der Außenfläche verbinden, von dem ersten Kapselteil und dem zweiten Kapselteil eingekapselt bzw. umfasst.According to the invention, the sealing ring with its inner surface is non-positively and / or materially on the jacket of the cable, or to the full extent of the cable sheath, and is on its opposite outer surface, and in addition to one or both of its end faces, which its inner surface with the outer surface connect, encapsulated by the first capsule part and the second capsule part.

Der Dichtungsring ist so bemessen bzw. weist einen solchen inneren Querschnitt auf, dass er kraftschlüssig um einen Abschnitt des Kabelmantels anordnbar ist, sodass er den Mantel des Kabels kraftschlüssig umfasst und vorzugsweise mit seiner Innenfläche über den gesamten Umfang auf dem Mantel liegt.The sealing ring is dimensioned or has such an inner cross-section that it can be frictionally arranged around a section of the cable sheath so that it frictionally surrounds the sheath of the cable and preferably lies with its inner surface over the entire circumference on the sheath.

Der Dichtungsring wird von einem ersten Abschnitt eines ersten Kapselteils kraftschlüssig umfasst, wobei dieser erste Abschnitt des ersten Kapselteils den Dichtungsring gegen das darin angeordnete Kabel belastet und sich über die axiale Länge erstreckt, die der Dichtungsring einnimmt, vorzugsweise über die axiale Länge, die der Dichtungsring in seinem gegen den Kabelmantel belasteten Zustand einnimmt. Auf diese Weise stellt der Dichtungsring eine kraftschlüssige Längsdichtigkeit entlang des Kabels her.The sealing ring is frictionally engaged by a first portion of a first capsule part, said first portion of the first capsule member loading the sealing ring against the cable disposed therein and extending over the axial length occupied by the sealing ring, preferably over the axial length of the sealing ring assumes in its loaded against the cable sheath state. In this way, the sealing ring produces a non-positive longitudinal seal along the cable.

Dieser erste Abschnitt des ersten Kapselteils kann mit einer endständigen Stirnfläche an das optionale zweite Kapselteil anstoßen. Gegenüber der Stirnfläche des ersten Kapselteils, die auf das zweite Kapselteil weist bzw. gegen eine Stirnfläche des zweiten Kapselteils stößt, weist das erste Kapselteil vorzugsweise einen zweiten Abschnitt auf, der einen geringeren Innenquerschnitt hat, als sein erster Abschnitt, sodass der zweite Abschnitt des ersten Kapselteils mit seiner Stirnfläche gegen eine Stirnfläche des Dichtungsrings anliegt, insbesondere gegen die Stirnfläche des Dichtungsrings, die dem zweiten Kapselteil gegenüber liegt.This first section of the first capsule part can abut with a terminal end face on the optional second capsule part. In contrast to the end face of the first capsule part facing the second capsule part or abutting against an end face of the second capsule part, the first capsule part preferably has a second section which has a smaller inner cross section than its first section, so that the second section of the first Encapsulated capsule part with its end face against an end face of the sealing ring, in particular against the end face of the sealing ring, which is opposite to the second capsule part.

Das Kupplungsteil weist einen spritzgegossenen Schutz- oder Steckerkörper auf, in dessen erstem Ende ein Kabel geführt ist, dessen gegenüberliegendes zweites Ende an einen Kontaktträger mit zumindest einer Ausnehmung und einem darin angeordneten Kontakt angrenzt oder einen Kontaktträger mit zumindest einer Ausnehmung und einem darin angeordneten Kontakt aufweist, der auf der Anschlußseite des Kontaktträgers mit einem Leiter des Kabels verbunden ist, wobei ein Dichtungselement rundum dicht auf dem Mantel des Kabels aufliegt, das Dichtungselement von einem ersten Abschnitt eines ersten Kapselteils umfasst und gegen den Mantel des Kabels belastet ist und ein zweites Kapselteil, das den Mantel form- und/oder kraftschlüssig umfasst, mit einer Stirnfläche an eine Stirnfläche des ersten Abschnitts des ersten Kapselteils und an das Dichtungselement angrenzend angeordnet ist und der spritzgegossene Schutz- oder Steckerkörper das erste Kapselteil und das zweite Kapselteil zumindest abschnittsweise umfasst und mit diesem feuchtigkeitsdicht verbunden ist, oder besteht daraus. In Ausführungsformen, in denen das Kupplungsteil aus dem spritzgegossenen Schutz- oder Steckerkörper, dem ersten Kapselteil und dem davon umfassten Dichtungselement und dem zweiten Kapselteil, die um den Kabelmantel angeordnet sind und mit den Leitern des Kabels verbundenen Kontakten besteht, grenzt das Kupplungsteil stoffschlüssig an den Kontaktträger an oder der Kontaktträger ist einstückig mit dem spritzgegossenen Schutz- oder Steckerkörper ausgebildet, wobei die Dichtung zwischen dem spritzgegossenen Schutz- oder Steckerkörper und dem Kabelmantel aus dem zwischen erstem und zweitem Kapselteil angeordnetem Dichtungselement besteht, das auf dem Kabel aufliegt, insbesondere bei einem Kabelmantel aus Mantelmaterial, das keine stoffschlüssige Verbindung mit dem spritzgegossenen Schutz- oder Steckerkörper eingeht.The coupling part has an injection-molded protective or plug body, in whose first end a cable is guided, whose opposite second end adjoins a contact carrier having at least one recess and a contact arranged therein or has a contact carrier with at least one recess and a contact arranged therein which is connected on the connection side of the contact carrier with a conductor of the cable, wherein a sealing element rests all around tightly on the jacket of the cable, the sealing element comprises a first portion of a first capsule part and is loaded against the jacket of the cable and a second capsule part, which includes the shell positively and / or non-positively, is arranged with an end face adjacent to an end face of the first portion of the first capsule part and the sealing element and the injection-molded protective or plug body at least partially comprises the first capsule part and the second capsule part and with this is moisture-proof, or consists thereof. In embodiments in which the coupling part consists of the injection-molded protective or plug body, the first capsule part and the sealing element and the second capsule part, which are arranged around the cable sheath and connected to the conductors of the cable, the coupling part cohesively adjoins the Contact carrier on or the contact carrier is formed integrally with the injection-molded protective or plug body, wherein the seal between the injection-molded protective or plug body and the cable sheath consists of the first and second capsule arranged between the sealing member which rests on the cable, in particular in a cable sheath of sheath material, which does not form a material connection with the injection-molded protective or plug body.

Ein erstes Kapselteil ist vorzugsweise kolinear an das zweite Kapselteil angrenzend angeordnet, so dass erstes und zweites Kapselteil unmittelbar aneinander angrenzende Abschnitte entlang ihrer gemeinsamen Längsmittelachse umfassen, in welcher das Kabel angeordnet ist.A first capsule part is preferably arranged colinearly adjacent to the second capsule part, so that the first and second capsule parts comprise sections which adjoin one another directly along their common longitudinal central axis, in which the cable is arranged.

Das zweite Kapselteil weist einen inneren Querschnitt auf, der z.B. zylindrisch ist, der zumindest gleich dem inneren Querschnitt des Dichtungsrings ist oder größer als der innere Querschnitt des Dichtungsrings ist, so dass das zweite Kapselteil einen inneren Querschnitt hat, der zumindest gleich oder größer als der darin angeordnete Mantelabschnitt des Kabels ist. Auf diese Weise kann das zweite Kapselteil beim Verfahren zur Herstellung auf den Abschnitt des Kabelmantels aufgeschoben werden, der an den vom Dichtungsring umfassten Mantelabschnitt angrenzt.The second capsule part has an internal cross section, e.g. is cylindrical, which is at least equal to the inner cross section of the sealing ring or larger than the inner cross section of the sealing ring, so that the second capsule part has an inner cross section which is at least equal to or greater than the disposed therein jacket portion of the cable. In this way, in the method of manufacture, the second capsule part can be pushed onto the section of the cable sheath which adjoins the sheath section enclosed by the sealing ring.

Erstes und zweites Kapselteil sind vorzugsweise umfänglich geschlossen, um axial auf das Kabel aufgeschoben zu werden, können alternativ jedoch eine axiale Öffnung aufweisen, um radial auf das Kabel aufgeschoben zu werden.First and second capsule members are preferably circumferentially closed to be slid axially onto the cable, but may alternatively have an axial opening to be radially slid onto the cable.

Erfindungsgemäß ist der Dichtungsring von einem ersten Abschnitt eines ersten Kapselteils umfasst und radial gegen den Mantel des Kabels belastet, wobei bevorzugt die Stirnflächen des Dichtungsrings zwischen einer Stirnfläche des zweiten Kapselteils und einer Stirnfläche eines zweiten Abschnitts des ersten Kapselteils angeordnet sind, und vorzugsweise die Stirnflächen des Dichtungsrings zwischen einer Stirnfläche des zweiten Kapselteils und einer Stirnfläche des zweiten Abschnitts des ersten Kapselteils kraftschlüssig und/oder formschlüssig angeordnet sind.According to the invention, the sealing ring is comprised of a first portion of a first capsule part and radially loaded against the jacket of the cable, wherein preferably the end faces of the sealing ring between an end face of the second capsule part and an end face of a second portion of the first capsule part are arranged, and preferably the end faces of the Sealing ring between a face of the second capsule part and an end face of the second portion of the first capsule part are non-positively and / or positively arranged.

Die inneren Querschnitte des ersten Kapselteils und des zweiten Abschnitts des ersten Kapselteils und der innere Querschnitt des Dichtungsrings sind jeweils zylindrisch und um eine gemeinsame Längsmittelachse angeordnet. Entlang dieser gemeinsamen Achse von zweitem Kapselteil, zweitem Abschnitt des ersten Kapselteils und des zwischen diesen angeordneten Dichtungsrings, der von dem ersten Abschnitt des ersten Kapselteils umfänglich umfasst ist, ist ein Kabel angeordnet. Dadurch, dass der erste Abschnitt des ersten Kapselteils den Dichtungsring umfänglich umfasst, belastet dieser erste Abschnitt des ersten Kapselteils den Dichtungsring gegen den Mantel des Kabels. Durch die bevorzugte Anordnung des Dichtungsrings zwischen einer Stirnfläche des zweiten Kapselteils und einer Stirnfläche des zweiten Abschnitts des ersten Kapselteils ist der Dichtungsring gegen ein axiales Ausweichen gesichert.The inner cross sections of the first capsule part and the second portion of the first capsule part and the inner cross section of the sealing ring are each cylindrical and arranged about a common longitudinal central axis. A cable is arranged along this common axis of the second capsule part, the second section of the first capsule part and the sealing ring arranged between them, which is encompassed circumferentially by the first section of the first capsule part. Characterized in that the first portion of the first capsule part comprises the sealing ring circumferentially, this first portion of the first capsule part loads the sealing ring against the jacket of the cable. Due to the preferred arrangement of the sealing ring between an end face of the second capsule part and an end face of the second portion of the first capsule part of the sealing ring is secured against axial deflection.

Vorzugsweise ist das zweite Kapselteil in Richtung auf das zweite Ende des Kupplungsteils angeordnet und das angrenzende erste Kapselteil ist in Richtung auf das erste Ende des Kupplungsteils angeordnet. Alternativ kann das zweite Kapselteil am ersten Ende des Kupplungsteils angeordnet sein und das angrenzende erste Kapselteil in Richtung auf dessen zweites Ende.Preferably, the second capsule part is arranged in the direction of the second end of the coupling part and the adjacent first capsule part is arranged in the direction of the first end of the coupling part. Alternatively, the second capsule part may be arranged on the first end of the coupling part and the adjacent first capsule part in the direction of the second end thereof.

Optional kann ein Anteil des zweiten Kapselteils, bevorzugt ein Anteil des ersten Kapselteils, das erste Ende des Kupplungsteils bzw. das erste Ende des spritzgegossenen Schutz- oder Steckerkörpers überragen, wobei vorzugsweise der zweite Abschnitt des ersten Kapselteils einen Innenquerschnitt aufweist, der ein darin angeordnetes Kabel formschlüssig umfasst und das erste Ende des Kupplungsteils bzw. des spritzgegossenen Schutz- oder Steckerkörpers überragt.Optionally, a portion of the second capsule part, preferably a portion of the first capsule part, project beyond the first end of the coupling part or the first end of the injection-molded protective or plug body, wherein preferably the second portion of the first capsule part has an internal cross-section, which is a cable arranged therein includes positively and projects beyond the first end of the coupling part or of the injection-molded protective or plug body.

Dadurch, dass erstes und zweites Kapselteil an Stirnflächen gegeneinander stoßen, sind sie gegen Verformung unter dem Druck der Spritzgußmasse stabil, so dass das Dichtungselement beim Spritzgießen nicht axial verformt wird. Erfindungsgemäß bevorzugt weisen erstes und zweites Kapselteil eine gegen Verformungen durch den beim Spritzgießen des Schutz- oder Steckerkörpers auftretenden Druck ausreichende Stabilität auf. Der Druck beim Spritzgießen kann in der Form 150-250 bar, insbesondere 150-200 bar bei der Temperatur der fließfähigen Spritzgußmasse des Schutz- oder Steckerkörpers betragen, z.B. bei 180 bis 320 °C. Bevorzugt sind erstes und zweites Kapselteil an ihren Stirnflächen gegeneinander und gegen die Spritzgußmasse dicht angeordnet, so dass während des Spritzgießens die Spritzgußmasse nicht zwischen erstes und zweites Kapselteil dringen kann.Characterized in that the first and second capsule part abut against each other at end faces, they are stable against deformation under the pressure of the injection molding compound, so that the sealing element is not axially deformed during injection molding. According to the invention, the first and second capsule parts preferably have sufficient stability against deformation due to the pressure occurring during injection molding of the protective or plug body. Injection molding pressure may be in the form 150-250 bar, especially 150-200 bar, at the temperature of the flowable molding compound of the protective or plug body, e.g. at 180 to 320 ° C. Preferably, the first and second capsule parts are arranged tightly against one another and against the injection molding compound at their end faces, so that the injection molding compound can not penetrate between the first and second capsule parts during injection molding.

Diese form- und/oder kraftschlüssige bzw. dichte Anordnung von erstem und zweitem Kapselteil gegen den Kabelmantel und die Stabilität von erstem und zweitem Kapselteil gegen den beim Spritzgießen des Schutz- oder Steckerkörpers auftretenden Druck schützt das Dichtungselement vor Verformung und vor Kontakt mit dem Spritzgußmaterial und bewahrt die vom Dichtungselement herstellte Dichtigkeit zum Mantel. Diese Stabilität von erstem und zweitem Kapselteil wird durch die Geometrie, Wandstärke und durch das Material von erstem und zweitem Kapselteil gebildet. Die Auswahl einer passenden Geometrie, insbesondere eines Wandquerschnitts oder Wandprofils, sowie einer Wandstärke für ein Material von erstem und zweitem Kapselteil für eine Stabilität, die gegen den beim Spritzgießen des Schutz- oder Steckerkörpers auftretenden Druck ausreicht, um die bleibende Verformung von erstem und zweitem Kapselteil und das Eindringen von Spritzgußmasse an das von erstem und zweitem Kapselteil umfasste Dichtungselement zu verhindern, kann fachüblich erfolgen.This positive and / or non-positive or tight arrangement of the first and second capsule part against the cable sheath and the stability of the first and second capsule part against the pressure occurring during injection molding of the protective or plug body protects the sealing element from deformation and from contact with the injection molding material and preserves the seal made by the sealing element to the jacket. This stability of the first and second capsule part is formed by the geometry, wall thickness and by the material of the first and second capsule part. The selection of a suitable geometry, in particular a wall cross-section or wall profile, as well as a wall thickness for a material of the first and second capsule part for a stability sufficient against the pressure occurring during injection molding of the protective or plug body to the permanent deformation of the first and second capsule part and to prevent the penetration of injection molding compound to the sealing element comprised of the first and second capsule part can be carried out in the usual way.

Bevorzugt sind der zweite Abschnitt des ersten Kapselteils und das zweite Kapselteil beidseitig des Dichtelements jeweils form- und/oder kraftschlüssig gegen den Kabelmantel angeordnet, z.B. um den vollständigen Umfang des Kabelmantels reibschlüssig, so dass während des Spritzgießens die Spritzgußmasse nicht gegen das Dichtelement dringen kann. Insbesondere weisen erstes und zweites Kapselteil zylindrische Ausnehmungen auf, die eine Preß- oder Klemmpassung zum Kabelmantel bilden, die das Eindringen von Spritzgußmasse bis zum Dichtungselement bei Temperatur und Druck des Spritzgießens verhindern. Eine solche Passung kann z.B. eine Ausnehmung aufweisen, die eine Toleranz bzw. einen Abstand von max. 0,2 mm, bevorzugt max. 0,1 mm, bevorzugter max. 0,08 bis max. 0,01 oder bis max. 0,02 bis max. 0,05 mm zum Kabelmantel aufweist. Die zylindrischen Ausnehmungen von erstem und zweitem Kapselteil können eine axiale Länge von z.B. 1 bis 20 mm, bevorzugt 3 bis 15 oder bis 10 mm haben. Vorzugsweise haben die Ausnehmungen von erstem und zweitem Kapselteil den gleichen Durchmesser.Preferably, the second portion of the first capsule part and the second capsule part on both sides of the sealing element are each arranged positively and / or non-positively against the cable sheath, for example frictionally around the entire circumference of the cable sheath, so that during injection molding, the injection molding compound can not penetrate against the sealing element. In particular, first and second capsule part have cylindrical recesses which form a press or clamped fit to the cable jacket, which prevent the penetration of injection molding compound to the sealing element at temperature and pressure of the injection molding. Such a fit may, for example, have a recess which has a tolerance or a distance of max. 0.2 mm, preferably max. 0.1 mm, more preferably max. 0.08 to max. 0.01 or up to max. 0.02 to max. 0.05 mm to the cable sheath. The cylindrical recesses of the first and second capsule part may have an axial length of, for example, 1 to 20 mm, preferably 3 to 15 or 10 mm. Preferably, the recesses of the first and second capsule part have the same diameter.

Bevorzugt bestehen erstes und/oder zweites Kapselteil aus einem Material, das beim Umspritzen mit dem Material für den spritzgegossenen Schutz- oder Steckerkörper eine stoffschlüssige Verbindung mit dem Spritzgußmaterial eingeht. Beispielsweise können erstes und/oder zweites Kapselteil aus PA (Polyamid) und/oder PBT (Polybutylenterephthalat) bestehen und das Spritzgußmaterial kann z.B. eine Polymermischung auf Basis von Polyamid und/oder Polyurethan sein. Bevorzugt weist eine stoffschlüssige Verbindung eine solche Festigkeit auf, dass sie unter einer Zugbelastung, z.B. bei flächiger Belastung von 0,1 bis 10000 Pa, insbesondere 1 bis 1000 Pa oder im Abziehtest bei 1 bis 10000 N, insbesondere 10 bis 1000 N je cm Breite der Verbindungsfläche stabil ist, insbesondere längswasserdicht.Preferably, the first and / or second capsule part consist of a material which forms a cohesive connection with the injection-molding material during encapsulation with the material for the injection-molded protective or plug body. For example, first and / or second capsule parts may be made of PA (polyamide) and / or PBT (polybutylene terephthalate) and the injection molding material may be e.g. a polymer blend based on polyamide and / or polyurethane. Preferably, a cohesive connection has such a strength that under a tensile load, e.g. at a surface load of 0.1 to 10000 Pa, in particular 1 to 1000 Pa or in the peel test at 1 to 10,000 N, in particular 10 to 1000 N per cm width of the connecting surface is stable, in particular longitudinally watertight.

Bevorzugt besteht der Mantel des Kabels aus einem Material, das keine stoffschlüssige Verbindung mit dem Spritzgußmaterial eingeht, insbesondere aus einem Material mit einem Gehalt an oder bestehend aus hochtemperaturbeständigem Material, z.B. aus FEP, XPUR oder XPE. Erfindungsgemäß besteht das Kupplungsteil zumindest in dem spritzgegossenen Abschnitt, in dem es zumindest anteilig das erste und zweite Kapselteil umfasst und der sich insbesondere vom Eintritt des Kabels in das Kupplungsteil bis an den Kontaktträger erstreckt, aus Spritzgussmaterial, das weiter bevorzugt eine stoffschlüssige Verbindung mit der äußeren Oberfläche des ersten Kapselteils und/oder der äußeren Oberfläche des zweiten Kapselteils eingeht, erstem und zweitem Kapselteil und dem von diesen umfasstem Dichtungselement, sowie einem Abschnitt des Kabels und dessen Adern. In dieser Ausführungsform ist das erste Kapselteil mit seiner Stirnfläche dadurch gegen die angrenzende Stirnfläche des zweiten Abschnitts des zweiten Kapselteils fixiert, dass erstes und zweites Kapselteil stoffschlüssig von dem spritzgegossenen Schutz- oder Steckerkörper umfasst sind, der bis an den Kontaktträger angrenzt und diesen optional abschnittsweise umfasst, oder den Kontaktträger einstückig ausbildet. Alternativ oder zusätzlich zu der stoffschlüssigen Verbindung zwischen dem Material des spritzgegossenen Schutz- oder Steckerkörpers und dem ersten und/oder zweiten Kapselteil können das erste und das zweite Kapselteil miteinander verbunden sein, insbesondere miteinander in Eingriff stehen, beispielsweise miteinander formschlüssig und/oder kraftschlüssig verbunden, z.B. kraftschlüssig verpresst, verrastet oder verschraubt sein, oder miteinander verklebt oder verschweißt sein, insbesondere ultraschallverschweißt.The jacket of the cable preferably consists of a material which does not form a material connection with the injection molding material, in particular of a material containing or consisting of high-temperature resistant material, eg of FEP, XPUR or XPE. According to the invention, the coupling part, at least in the injection-molded section, in which it at least partially comprises the first and second capsule part and which extends in particular from the entry of the cable into the coupling part to the contact carrier, of injection-molded material, which further preferably has a material connection with the outer Surface of the first capsule part and / or the outer surface of the second capsule part, first and second capsule part and the sealing element comprising these, as well as a portion of the cable and its wires. In this embodiment, the first capsule part is thereby fixed with its end face against the adjacent end face of the second portion of the second capsule part, that first and second capsule part are cohesively covered by the injection-molded protective or plug body, which adjoins the contact carrier and this optionally includes sections , or the contact carrier integrally formed. Alternatively or in addition to the cohesive connection between the material of the injection-molded protective or plug body and the first and / or second capsule part, the first and the second capsule part can be connected to one another, in particular engage with one another, for example with one another positively and / or non-positively connected, For example, be pressed non-positively, locked or screwed, or be glued or welded together, in particular ultrasonically welded.

Die Verbindung zwischen erstem und zweitem Kapselteil kann beispielsweise entlang der aneinander angrenzenden Stirnflächen des zweiten Kapselteils und des ersten Abschnitts des ersten Kapselteils bestehen.The connection between the first and second capsule part may, for example, be made along the adjoining end faces of the second capsule part and the first part of the first capsule part.

Ein erfindungsgemäßes Kupplungsteil mit daran angeschlossenem Kabel weist an seinem ersten Ende ein im spritzgegossenen Schutz- oder Steckerkörper abschnittsweise geführtes Kabel auf, das von einem um den Kabelmantel angeordneten zweiten Kapselteil und einem daran angrenzenden, um den Kabelmantel angeordneten ersten Kapselteil umfasst ist, wobei ein erster Abschnitt des ersten Kapselteils einen darin angeordneten Dichtungsring umfasst und diesen gegen den Mantel des Kabels belastet, wobei vorzugsweise der Dichtungsring zwischen einem Abschnitt der Stirnfläche des zweiten Kapselteils und einer Stirnfläche eines an den ersten Abschnitt des ersten Kapselteils angrenzenden zweiten Abschnitt angeordnet ist, bzw. zwischen diesen Stirnflächen eingefasst ist, bevorzugter kraftschlüssig zwischen diesen beabstandeten Stirnflächen von zweitem Kapselteil und erstem Abschnitt des ersten Kapselteils eingefasst ist.A coupling part according to the invention with a cable connected thereto has at its first end a cable guided in sections in the injection-molded protective or plug body, which cable is surrounded by a second capsule part arranged around the cable jacket and a first capsule part arranged around the cable sheath and a first one Section of the first capsule part comprises a sealing ring arranged therein and this loaded against the jacket of the cable, wherein preferably the sealing ring between a portion of the end face of the second capsule part and an end face of a second portion adjacent to the first portion of the first capsule portion is disposed or between This end faces is bordered, is preferably frictionally between these spaced end faces of the second capsule part and the first portion of the first capsule part is enclosed.

Das Verfahren zur Herstellung eines erfindungsgemäßen Kupplungsteils mit daran angeschlossenem Kabel weist neben der Kontaktierung der in dem Kabel enthaltenen Leiter mit Kontakten, die optional in Ausnehmungen eines zusätzlichen oder separaten oder eines einstückig mit dem Schutz- oder Steckerkörper auszubildenden Kontaktträgers angeordnet sind, der am zweiten Ende des Kupplungsteils angeordnet ist, das Anordnen eines Dichtungsrings, des ersten Kapselteils und eines an diesen angrenzenden zweiten Kapselteils um das Kabel auf, wobei der erste Abschnitt des ersten Kapselteils den Dichtungsring einfasst und diesen radial vollumfänglich gegen den Mantel des Kabels belastet. Dabei wird der Dichtungsring vorzugsweise zwischen dem zweiten Kapselteil und dem an den ersten Abschnitt des ersten Kapselteils angrenzenden zweiten Abschnitt angeordnet, vorzugsweise mit seinen Stirnflächen zwischen einem zweitem Kapselteil und erstem Abschnitt des ersten Kapselteils eingespannt. Bevorzugt wird zunächst das Dichtungselement im zweiten Abschnitt des ersten Kapselteils angeordnet und das zweite Kapselteil wird gegen das erste Kapselteil angeordnet und mit diesem verbunden, wobei erstes und zweites Kapselteil und das umfasste Dichtungselement eine gemeinsame zylindrische Ausnehmung bilden. Anschließend wird das Kabel in die von erstem und zweitem Kapselteil und dem von diesen umfassten Dichtungselement gebildete zylindrische Ausnehmung angeordnet, z.B. durch Einschieben des Kabels in diese Ausnehmung. Der Schutz- oder Steckerkörper wird durch Umspritzen zumindest eines Anteils des ersten und des zweiten Kapselteils, insbesondere des ersten Abschnitts des ersten Kapselteils, bis zumindest angrenzend an den Kontaktträger mit einer vernetzbaren oder aushärtbaren Kunststoffmasse hergestellt, die eine stoffschlüssige Verbindung mit den umspritzten Abschnitten der Außenflächen von erstem und/oder zweitem Kapselteil eingeht.The method for producing a coupling part according to the invention with the cable connected thereto, in addition to the contacting of the conductor contained in the cable with contacts, which are optionally arranged in recesses of an additional or separate or an integrally formed with the protective or plug body contact carrier, at the second end is disposed of the coupling part, arranging a sealing ring, the first capsule part and adjacent thereto second capsule part around the cable, wherein the first portion of the first capsule part surrounds the sealing ring and this radially fully loaded against the jacket of the cable. In this case, the sealing ring is preferably arranged between the second capsule part and the second portion adjoining the first portion of the first capsule part, preferably clamped with its end faces between a second capsule part and the first portion of the first capsule part. Preferably, the sealing element is first arranged in the second portion of the first capsule part and the second capsule part is arranged against the first capsule part and connected thereto, wherein the first and second capsule part and the sealing element comprised form a common cylindrical recess. Subsequently, the cable is arranged in the cylindrical recess formed by the first and second capsule part and the sealing element encompassed by the latter, for example by inserting the cable into this recess. The protective or plug body is by overmolding at least a portion of the first and second capsule part, in particular of the first portion of the first capsule part, at least adjacent to the contact carrier made with a crosslinkable or curable plastic material, which forms a material connection with the overmolded portions of the outer surfaces of the first and / or second capsule part ,

Im Einzelnen kann das Verfahren zur Herstellung des Kupplungsteils die folgenden Schritte aufweisen:

  • Bereitstellen eines Kabels mit einem Mantel, der insbesondere aus hochtemperaturfestem Material besteht, z.B. FEP, XPUR oder XPE,
  • Anordnen eines Dichtungsrings mit seiner Innenfläche kraftschlüssig und/oder formschlüssig um einen Abschnitt des Mantels,
  • Anordnen eines ersten Kapselteils, das das Kabel umfasst, wobei ein erster Abschnitt des ersten Kapselteils den Dichtungsring umfasst und radial gegen den Mantel belastet, vorzugsweise so, dass die Stirnfläche eines an den ersten Abschnitt des ersten Kapselteils angrenzenden zweiten Abschnitts an einer Stirnfläche des Dichtungsrings anliegt, wobei der zweite Abschnitt den Kabelmantel vorzugsweise unmittelbar bzw. formschlüssig umfasst, insbesondere an der Stirnfläche, die dem zweiten Kapselteil gegenüber angeordnet ist,
  • in Kombination mit dem Anordnen eines ersten Kapselteils, das Anordnen eines zweiten Kapselteils, das das Kabel umfasst, um einen zum Dichtungsring benachbarten Abschnitt des Mantels, vorzugsweise mit einer Stirnfläche des zweiten Kapselteils anliegend an eine Stirnfläche des Dichtungsrings und/oder anliegend an eine Stirnfläche des ersten Abschnitts des ersten Kapselteils, und bevorzugt anliegend an der dem ersten Kapselteil gegenüberliegenden Stirnfläche des Dichtungsrings
  • vorher oder nachher Abisolieren zumindest einer Ader des Kabels und Kontaktieren des Leiters mit einem Kontakt,
  • wobei der Kontakt optional in einer Ausnehmung eines Kontaktträgers angeordnet ist, oder alternativ der Kontaktträger einstückig mit dem Schutz- oder Steckerkörper ausgebildet wird,
  • Herstellen eines Schutz- oder Steckerkörpers durch Spritzgießen einer vernetzbaren oder aushärtenden Kunststoffmasse um zumindest einen Abschnitt des ersten und/oder zweiten Kapselteils, insbesondere bis zumindest angrenzend an die Anschlußseite des Kontaktträgers, wobei die Masse eine stoffschlüssige Verbindung mit zumindest dem ersten Abschnitt des ersten Kapselteils eingeht.
  • Optional kann das erste oder zweite Kapselteil den Schutz- oder Steckerkörper abschnittsweise überragen.
  • Weiter optional kann das Spritzgießen so erfolgen, dass die Masse einen Kontaktträger umgreift, bevorzugt bis maximal an die der Anschlußseite gegenüberliegende Kontaktseite des Kontaktträgers.
In particular, the method for producing the coupling part may comprise the following steps:
  • Provision of a cable with a jacket which consists in particular of high-temperature-resistant material, eg FEP, XPUR or XPE,
  • Arranging a sealing ring with its inner surface frictionally and / or positively around a portion of the shell,
  • Arranging a first capsule part comprising the cable, wherein a first portion of the first capsule part comprises the sealing ring and radially loaded against the shell, preferably so that the end face of a second portion adjacent to the first portion of the first capsule part abuts an end face of the sealing ring wherein the second portion preferably comprises the cable sheath directly or positively, in particular on the end face, which is arranged opposite the second capsule part,
  • in combination with arranging a first capsule part, arranging a second capsule part comprising the cable around a portion of the shell adjacent the sealing ring, preferably with an end face of the second capsule part adjacent to an end face of the sealing ring and / or adjacent an end face of the shell first portion of the first capsule part, and preferably adjacent to the first capsule part opposite end face of the sealing ring
  • before or after stripping at least one wire of the cable and contacting the wire with a contact,
  • wherein the contact is optionally arranged in a recess of a contact carrier, or alternatively the contact carrier is formed integrally with the protective or plug body,
  • Producing a protective or plug body by injection molding a crosslinkable or hardening plastic mass around at least a portion of the first and / or second capsule part, in particular to at least adjacent to the terminal side of the Contact carrier, wherein the mass enters into a material connection with at least the first portion of the first capsule part.
  • Optionally, the first or second capsule part project beyond the protective or plug body in sections.
  • Next optionally, the injection molding can be carried out so that the mass surrounds a contact carrier, preferably up to a maximum of the terminal side opposite the contact side of the contact carrier.

Optional kann zunächst das Dichtungselement im ersten Abschnitt des ersten Kapselteils angeordnet werden und das zweite Kapselteil gegen eine Stirnfläche des ersten Kapselteils angeordnet und mit dieser verbunden wird, wobei der dem zweiten Kapselteil gegenüberliegende zweite Abschnitt des ersten Kapselteils und das zweite Kapselteil mit dem Dichtungselement auf einer Mittelachse einer zylindrische Ausnehmung bilden. Dabei weisen die Ausnehmungen des zweiten Abschnitts des ersten Kapselteils und das zweite Kapselteil Durchmesser auf, die eine Preß- oder Klemmpassung zum Außendurchmesser des Kabelmantels bilden und bevorzugt eine axiale Länge, die angepasst sind, das Eindringen von Spritzgußmasse zwischen Kabelmantel und zweitem Abschnitts des ersten Kapselteils bzw. zwischen Kabelmantel und zweitem Kapselteil bis zum Dichtungselement bei Temperatur und Druck des Spritzgießens zu verhindern. Das Eindringen von Spritzgußmasse gegen das Dichtungselement wird durch die Passung und die axiale Länge der Ausnehmung am Kabelmantel verhindert, da Passung und axiale Länge der Ausnehmung die Spritzgußmasse während des Verfahrens entlang des Kabelmantels absterben lassen. Entsprechend sind Passung und axiale Länge der Ausnehmung gegen das Eindringen von Spritzgußmasse beständig. Anschließend wird das Kabel koaxial in der Ausnehmung angeordnet.Optionally, the sealing element can first be arranged in the first section of the first capsule part and the second capsule part is arranged against and connected to an end face of the first capsule part, wherein the second portion of the first capsule part opposite the second capsule part and the second capsule part with the sealing element on a Form center axis of a cylindrical recess. In this case, the recesses of the second portion of the first capsule part and the second capsule part have diameters which form a press or Klemmpassung to the outer diameter of the cable sheath and preferably an axial length which are adapted, the penetration of injection molding material between the cable sheath and the second portion of the first capsule part or between the cable sheath and the second capsule part to prevent the sealing element at temperature and pressure of the injection molding. The penetration of injection molding compound against the sealing element is prevented by the fit and the axial length of the recess on the cable sheath, since fit and axial length of the recess allow the injection molding material to die off during the process along the cable sheath. Accordingly, fit and axial length of the recess are resistant to the penetration of Spritzgußmasse. Subsequently, the cable is arranged coaxially in the recess.

Wahlweise können die Außenflächen von erstem und zweitem Kapselteil jeweils zylindrisch sein, oder bevorzugt zu ihrer gemeinsamen Längsachse radiale und/oder axiale Vorsprünge und Vertiefungen aufweisen, beispielsweise in Form von Vorsprüngen und/oder radial umlaufender Rillen, insbesondere in Form eines Gewindes, um eine formschlüssige Verbindung mit dem Schutz- oder Steckerkörper zu bilden.Optionally, the outer surfaces of the first and second capsule part may each be cylindrical, or preferably have to their common longitudinal axis radial and / or axial projections and depressions, for example in the form of projections and / or radially encircling grooves, in particular in the form of a thread to form-fitting Make connection with the protective or plug body.

Generell bevorzugt weist der erste Abschnitt des ersten Kapselteils auf seiner äußeren Oberfläche Rillen oder ein Gewinde auf, während der zweite Abschnitt des zweitenGenerally preferred, the first portion of the first capsule part on its outer surface grooves or a thread, while the second portion of the second

Kapselteils das erste Ende des Gehäuses überragt und weiter optional Eingriffsflächen für ein Werkzeug aufweist.Capsule part projects beyond the first end of the housing and further optionally comprises engagement surfaces for a tool.

In Ausführungsformen, in denen das zweite Kapselteil und/oder der erste Abschnitt des zweiten Kapselteils Außenrillen oder ein Außengewinde aufweist, weist der das erste und zweite Kapselteil umfassende Abschnitt des spritzgegossenen Schutz- oder Steckerkörpers damit in Eingriff stehende passende Oberflächen auf, z.B. Rillen bzw. ein Innengewinde, die beim erfindungsgemäßen Herstellungsverfahren durch Spritzguss des Gehäusematerials durch den Kontakt mit dem Kapselteil erzeugt ist.In embodiments in which the second capsule part and / or the first part of the second capsule part has external grooves or an external thread, the portion of the injection-molded protective or plug body comprising the first and second capsule parts has mating surfaces mating thereto, e.g. Grooves or an internal thread, which is produced in the manufacturing method according to the invention by injection molding of the housing material by the contact with the capsule part.

Die Innenfläche des ersten Abschnitts des ersten Kapselteils, die den Dichtungsring umfasst, kann zylindrisch sein oder optional sich in Richtung auf den zweiten Abschnitt oder in Richtung auf das zweite Kapselteil verjüngen, beispielsweise als Kegelmantelfläche. Besonders bevorzugt weist der Dichtungsring eine zylindrische innere Oberfläche auf und eine äußere Oberfläche, die passend zur Innenfläche des ersten Abschnitts ist, insbesondere zylindrisch ist oder eine Kegelmantelfläche aufweist.The inner surface of the first portion of the first capsule part, which comprises the sealing ring, may be cylindrical or optionally taper towards the second portion or towards the second capsule part, for example as a conical surface. Particularly preferably, the sealing ring has a cylindrical inner surface and an outer surface which is suitable for the inner surface of the first portion, in particular is cylindrical or has a conical surface.

Wahlweise kann der Dichtungsring aus mehreren axial aneinander angeordneten Teilringen bestehen. Weiter optional kann ein Dichtungsring eine oder mehrere auf seiner Außenfläche und/oder auf seiner Innenfläche umlaufende Nuten aufweisen. Bevorzugt weist der Dichtungsring eine durchgehend zylindrische Innenoberfläche auf, eine zylindrische Außenfläche, in der zumindest eine umlaufende, in sich geschlossene Nut eingeformt ist, und zur Innenoberfläche senkrechte Stirnflächen.Optionally, the sealing ring may consist of a plurality of axially arranged partial rings. Further optionally, a sealing ring may have one or more grooves running around its outer surface and / or on its inner surface. Preferably, the sealing ring has a continuous cylindrical inner surface, a cylindrical outer surface, in which at least one circumferential, self-contained groove is formed, and vertical surfaces to the inner surface.

Genaue Beschreibung der ErfindungDetailed description of the invention

Die Erfindung wird nun genauer mit Bezug auf die Figuren beschrieben, die schematisch im Schnitt in

  • Figur 1 ein erfindungsgemäßes Kupplungsteil, bei dem der Schutz- oder Steckerkörper erstes und zweites Kapselteil vollständig umfasst und den Kontaktträger einstückig ausbildet,
  • Figur 2 ein erfindungsgemäßes Kupplungsteil mit separatem Kontaktträger, an den der Schutz- oder Steckerkörper angrenzt, der von einem Kapselteil überragt wird und in
  • Figur 3 ein erfindungsgemäßes Kupplungsteil, bei dem der Schutz- oder Steckerkörper, der den Kontaktträger einstückig ausbildet, vom ersten Kapselteil überragt wird.
The invention will now be described in more detail with reference to the figures which show schematically in section in FIG
  • FIG. 1 a coupling part according to the invention, in which the protective or plug body completely covers the first and second capsule parts and forms the contact carrier in one piece,
  • FIG. 2 an inventive coupling part with a separate contact carrier to which the protective or plug body is adjacent, which is surmounted by a capsule part and in
  • FIG. 3 a coupling part according to the invention, in which the protective or plug body, which forms the contact carrier in one piece, is surmounted by the first capsule part.

In den Figuren ist das Dichtungselement in der bevorzugten Ausführung als Dichtungsring gezeigt; gleiche Bezugsziffern bezeichnen funktionsgleiche Elemente.In the figures, the sealing element in the preferred embodiment is shown as a sealing ring; like reference numerals denote functionally identical elements.

Die Figur 1 zeigt ein Kupplungsteil, an dessen erstem Ende 1 ein Kabel geführt ist, dessen Adern 14 in einem Abschnitt abisoliert sind, so dass die Leiter 13 elektrisch leitend mit den Kontakten 12 verbunden sind. Die Kontakte 12 sind in Ausnehmungen 11 eines Kontaktträgers 10 angeordnet, der einstückig mit dem Schutz- oder Steckerkörper 16 ausgebildet ist. Der Schutz- oder Steckerkörper 16 erstreckt sich von seinem ersten Ende 1 bis zu seinem gegenüberliegenden zweiten Ende 3, an dem der Kontaktträger angeordnet ist. Ein Dichtungsring 4 ist formschlüssig um das Kabel 2 angeordnet, der von einem ersten Abschnitt 5 eines ersten Kapselteils 6 formschlüssig umfasst ist, welches form- und stoffschlüssig vom Schutz- oder Steckerkörper 16 umspritzt ist. An den ersten Abschnitt 5 des ersten Kapselteils 6 ist ein zweites Kapselteil 7 angrenzend angeordnet, so dass der Dichtungsring 4 axial von einer Stirnfläche des zweiten Kapselteils 7 und einer Stirnfläche des zweiten Abschnitts des ersten Kapselteils 6 eingefasst ist, während der Dichtungsring 4 umfänglich vom ersten Abschnitt 5 des ersten Kapselteils 6 gegen den Kabelmantel 15 belastet ist. Dabei erstreckt sich der Schutz- oder Steckerkörper 16 entlang des Kabels 2 über den erstes und zweites Kapselteil 6, 7, sowie über einen Abschnitt des Kabels 2, der sich auf der Seite des Dichtungsrings gegenüber des zweiten Endes erstreckt, so dass der Schutz- oder Steckerkörper 16 erstes und zweites Kapselteil vollständig umfasst. In der hier gezeigten Ausführungsform bildet der Schutz- oder Steckerkörper 16 den Kontaktträger einstückig, so dass die Kontakte 12 in Ausnehmungen 11 des Kontaktträgers fixiert sind, die während eines Spritzgußschritts gemeinsam mit dem Schutz- oder Steckerkörper 16 ausgebildet werden.The FIG. 1 shows a coupling part, at the first end 1, a cable is guided, the wires 14 are stripped in a section, so that the conductors 13 are electrically connected to the contacts 12. The contacts 12 are arranged in recesses 11 of a contact carrier 10, which is formed integrally with the protective or plug body 16. The protective or plug body 16 extends from its first end 1 to its opposite second end 3, on which the contact carrier is arranged. A sealing ring 4 is arranged in a form-fitting manner around the cable 2, which is encompassed by a first section 5 of a first capsule part 6 in a form-fitting manner, which is molded around the protective or plug body 16 in a positive and cohesive manner. At the first portion 5 of the first capsule part 6, a second capsule part 7 is disposed adjacent, so that the sealing ring 4 is axially enclosed by an end face of the second capsule part 7 and an end face of the second portion of the first capsule part 6, while the sealing ring 4 is circumferentially from the first Section 5 of the first capsule part 6 is loaded against the cable sheath 15. In this case, the protective or plug body 16 extends along the cable 2 via the first and second capsule part 6, 7, and over a portion of the cable 2, which extends on the side of the sealing ring opposite the second end, so that the protective or Plug body 16 completely covers the first and second capsule part. In the embodiment shown here, the protective or plug body 16 forms the contact carrier in one piece, so that the contacts 12 are fixed in recesses 11 of the contact carrier, which are formed together with the protective or plug body 16 during an injection molding step.

Die Figur 2 zeigt ein Kupplungsteil, das an seinem ersten Ende 1 eine Führung für ein Kabel 2 aufweist, und am gegenüberliegenden zweiten Ende 3 einen Kontaktträger 10, an den der Schutz- oder Steckerkörper 16 angrenzt, mit Ausnehmungen 11, in denen jeweils ein Kontakt 12 angeordnet ist. Auf der Anschlußseite des Kontaktträgers 10 sind die Kontakte 12 mit den Leitern 13 des Kabels 2 leitend verbunden. Im Anschluß an den Abschnitt, in dem die Leiter 13 die Kontakte 12 kontaktieren, sind sie als Adern 14 isoliert und anschließend vom Mantel 15 des Kabels 2 umfasst. In dieser Ausführungsform ist der Kontaktträger ein vom Schutz-oder Steckerkörper 16 separates Element, mit welchem der Schutz- oder Steckerkörper 16 stoffschlüssig verbunden ist.The FIG. 2 shows a coupling part, which has at its first end 1 a guide for a cable 2, and at the opposite second end 3, a contact carrier 10 to which the protective or plug body 16 adjacent, with recesses 11, in each of which a contact 12 is arranged , On the connection side of the contact carrier 10, the contacts 12 are conductively connected to the conductors 13 of the cable 2. Following the section in which the conductors 13 contact the contacts 12, they are insulated as wires 14 and then covered by the jacket 15 of the cable 2. In this embodiment, the contact carrier is one of the protection or Plug body 16 separate element with which the protective or plug body 16 is integrally connected.

Erfindungsgemäß ist um das Kabel 2 ein Dichtungsring 4 kraftschlüssig angeordnet, der umfänglich dichtend auf dem Mantel 15 aufliegt. Der Dichtungsring 4 ist vom ersten Abschnitt 5 des ersten Kapselteils 6 eingefasst. Der erste Abschnitt 5 des ersten Kapselteils 6 grenzt mit seiner Stirnfläche an eine Stirnfläche des um eine gemeinsame Längsmittelachse angeordneten zweiten Kapselteils 7 und weist auf seiner gegenüberliegenden Stirnfläche einen zweiten Abschnitt 8 auf. Der zweite Abschnitt 8 des ersten Kapselteils 6 hat einen geringeren Innendurchmesser als dessen erster Abschnitt 5, sodass die dem zweiten Kapselteil 7 zugewandte Stirnfläche des zweiten Abschnitts 8 gegen eine Stirnfläche des Dichtungsrings 4 angeordnet ist.According to the invention, a sealing ring 4 is frictionally arranged around the cable 2, which rests circumferentially sealingly on the jacket 15. The sealing ring 4 is bordered by the first portion 5 of the first capsule part 6. The first section 5 of the first capsule part 6 adjoins with its end face against an end face of the second capsule part 7 arranged around a common longitudinal central axis and has a second section 8 on its opposite end face. The second portion 8 of the first capsule part 6 has a smaller inner diameter than the first portion 5, so that the second capsule part 7 facing end surface of the second portion 8 is disposed against an end face of the sealing ring 4.

Ein spritzgegossener Schutz- oder Steckerkörper 16 erstreckt sich zwischen der Anschlußseite des Kontaktträgers 10 bis um den ersten Abschnitt 5 des ersten Kapselteils 6, so dass damit der erste Abschnitt 5 des ersten Kapselteils 6 vom spritzgegossenen Schutz- oder Steckerkörper 16 umfasst ist, der den Dichtungsring 4 gegen den Mantel 15 belastet. Erfindungsgemäß wird auch in dieser Ausführung eine zuverlässige Längsdichtigkeit wird daher durch den gegen den Mantel 15 belasteten Dichtungsring 4, den um den Dichtungsring 4 angeordneten ersten Abschnitt 5 des ersten Kapselteils 6 und den daran stoffschlüssig anliegenden spritzgegossenen Schutz- oder Steckerkörper 16 gebildet, der sich bis an den Kontaktträger 10 erstreckt und die mit den Kontakten 12 verbundenen Leiter 13, die optional abschnittsweise als Adern 14 ohne Mantel 15 vorliegen, und vorzugsweise einen vom Mantel 15 umgebenen Abschnitt des Kabels 2 umfasst, der zwischen zweitem und erstem Kapselteil 6, 7 einerseits und dem Kontaktträger 10 andererseits liegt. Durch eine stoffschlüssige Verbindung des spritzgegossenen Schutz- oder Steckerkörpers 16 mit der Anschlußseite 10a des Kontaktträgers 10 ist das Kupplungsteil bis zur Steckerseite des Kontaktträgers 10, die der Anschlußseite 10a gegenüberliegt, nach außen dicht.An injection-molded protective or plug body 16 extends between the terminal side of the contact carrier 10 to the first portion 5 of the first capsule part 6, so that thus the first portion 5 of the first capsule part 6 is encompassed by the injection-molded protective or plug body 16, the sealing ring 4 loaded against the jacket 15. According to the invention, a reliable longitudinal sealing is therefore formed by the sealing ring 4 loaded against the jacket 15, the first section 5 of the first capsule part 6 arranged around the sealing ring 4 and the injection-molded protective or plug body 16 which bears against it integrally extends to the contact carrier 10 and connected to the contacts 12 conductors 13, which are optionally present in sections as cores 14 without sheath 15, and preferably a jacket 15 surrounded by the portion of the cable 2, between the second and first capsule part 6, 7 on the one hand and the contact carrier 10 on the other. By a cohesive connection of the injection-molded protective or plug body 16 with the connection side 10a of the contact carrier 10, the coupling part to the plug side of the contact carrier 10, which is the connection side 10a, outwardly sealed.

In dieser Ausführungsform ist der vom spritzgegossenen Schutz- oder Steckerkörpers 16 gebildete Abschnitt des Gehäuses am ersten Ende 1 des Kupplungsteils formschlüssig um das zweite Kapselteil 7 und den daran angrenzenden ersten Abschnitt 5 des ersten Kapselteils 6 angeordnet, während zumindest ein Teil des zweiten Abschnitts 8 des ersten Kapselteils 6 über das erste Ende 1 des Kupplungsteils bzw. über das erste Ende 1 des spritzgegossenen Schutz- oder Steckerkörpers 16 ragt und formschlüssig oder mit Abstand um das Kabel 2 angeordnet ist.In this embodiment, the portion of the housing formed by the injection-molded protective or plug body 16 at the first end 1 of the coupling part is arranged in a form-fitting manner around the second capsule part 7 and the first section 5 of the first capsule part 6 adjacent thereto, while at least a part of the second section 8 of the first first capsule part 6 via the first end 1 of the coupling part or via the first end 1 of the injection-molded Protective or plug body 16 protrudes and is arranged in a form-fitting or spaced around the cable 2.

Figur 3 zeigt eine weitere Ausführungsform mit einem Kontaktträger 10, der mit dem Schutz-oder Steckerkörper 16 einstückig spritzgegossen ist und das erste Kapselteil abschnittsweise den spritzgegossenen Schutz- oder Steckerkörper 16 über dessen erstes Ende 1 hinaus überragt. FIG. 3 shows a further embodiment with a contact carrier 10, which is injection molded integrally with the protective or plug body 16 and the first capsule portion partially projects beyond the injection-molded protective or plug body 16 beyond its first end 1 addition.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
erstes Endefirst end
22
Kabelelectric wire
33
zweites Endesecond end
44
Dichtungselement, DichtungsringSealing element, sealing ring
55
erster Abschnitt des ersten Kapselteilsfirst section of the first capsule part
66
erstes Kapselteilfirst capsule part
77
zweites Kapselteilsecond capsule part
88th
zweiter Abschnitt des ersten Kapselteilssecond section of the first capsule part
1010
Kontaktträgercontact support
10a10a
Anschlußseite des KontaktträgersConnection side of the contact carrier
1111
Ausnehmungrecess
1212
KontaktContact
1313
Leiterladder
1414
AderVein
1515
Mantelcoat
1616
Schutz- oder SteckerkörperProtective or plug body

Claims (15)

  1. Coupling part, comprising an injection-molded protective or plug body (16) and a cable (2), wherein in a first end (1) the cable (2) is guided and wherein the oppositely located second end (3) of the protective or plug body (16) has a contact carrier (10) with at least one recess (11) and a contact (12) arranged in the recess, which on the connection side (10a) of the contact carrier (10) is connected to a conductor (13) of the cable (2), wherein a sealing element (4) is placed circumferentially tight on the sheath (15) of the cable (2), the sealing element (4) is surrounded by a first section (5) of a first capsule part (6) and is biased against the sheath (15) of the cable (2), and a second capsule part (7), which surrounds the sheath (15) with a positively engaging and/or frictionally engaging connection, with an end face arranged bordering an end face of the first section (5) of the first capsule part (6) and abutting to the sealing element (16) and wherein the injection-molded protective or plug body (16) surrounds the first capsule part (6) and the second capsule part (7) at least over portions thereof and is connected therewith in a moisture-tight manner.
  2. Coupling part according to claim 1, characterized in that the first capsule part (6) and the second capsule part (7) have at the temperature of the flowable injection-molding material a sufficient stability, realized by geometrie, wallthickness and the material, due to the pressure occurring during injection-molding of the protective or plug body (16) and have on each side of the sealing element (4) a recess which is arranged with a fit relative to the sheath (15) which prevents the penetration of flowable injection-molding substance.
  3. Coupling part according to one of the preceding claims, characterized in that the first capsule part (6) and the second capsule part (7) are surrounded with an integral connection by the injection-molded protective or plug body (16) which forms the contact carrier (10) as a single piece.
  4. Coupling part according to one of the preceding claims, characterized in that the second section (8) of the first capsule part (6) located adjacent to the first section (5) surrounds the sheath (15) with a positive and/or frictional engagement.
  5. Coupling part according to one of the preceding claims, characterized in that the second section (8) which is located adjacent to the first section (5) of the first capsule part (6) projects above the first end (1) of the injection-molded protective or plug body (16).
  6. Coupling part according to one of the claims 1 to 4, characterized in that the injection-molded protective or plug body (16) completely encloses the first capsule part (6) and the second capsule part (7).
  7. Coupling part according to one of the preceding claims, characterized in that the sealing element (4) is arranged between an end face of the second capsule part (7) and an end face of the second section (8) of the first capsule part (6) opposing the same.
  8. Coupling part according to one of the preceding claims, characterized in that the first section (5) of the first capsule part (6) has an outer thread or outer grooves in engagement with the injection-molded protective or plug body (16).
  9. Coupling part according to one of the preceding claims, characterized in that the first capsule part (6) and the second capsule part (7) are in engagement with each other, are pressed together with frictional engagement, are locked together, are screwed together, are glued together or welded together.
  10. Method of manufacturing a coupling comprising an injection-molded protective or plug body (16) and a cable (2), wherein the cable is guided in a first end (1) and wherein the oppositely located second end (3) of the protective or plug body (16) has a contact carrier (10) with at least one recess (11) and a contact (12) arranged in the same comprising the steps:
    - contacting of conductors of the cable (2) with the at least one contact (12),
    - injection-molding a protective or plug body (16) which includes the contact carrier (10) and a section of the cable (2), wherein
    - prior to injection-molding, a sealing element (4) is arranged circumferentially tight on the sheath (15) of the cable (2) and a first capsule part (6) is arranged around the cable (2), wherein a first section (5) of the first capsule part (6) surrounds the sealing element (4) and biases the sealing element (4) against the sheath (15) of the cable (2), and a second capsule part (7), which surrounds the sheath (15) with a positive and/or frictional engagement, is arranged tightly around the sheath (15) and with its end face against an end face of the first section (5) of the first capsule part (6) and abutting to the sealing element (4) and the injection-molded protective or plug body (16) is injection-molded so as to enclose the at least first section (5) of the first capsule part (6) and at least a portion of the second capsule part (7) being connected to the same water proof.
  11. Method according to claim 10, characterized in that the sealing element (4) is initially arranged in the first section (5) of the first capsule part (6) and is surrounded thereby, and the second capsule part (7) is arranged against an end face of the first capsule part (6) and is connected thereto, wherein the second section (8) of the first capsule part (6) is located opposite the second capsule part (7), and the second capsule part (7) form with the sealing element (4) a cylindrical recess on a center axis, and subsequently the cable (2) is arranged in the recess.
  12. Method according to one of the claims 10 to 11, characterized in that a second section (8) of the first capsule part (6) adjacent to the first section of the first capsule part (6) remains free of injection-molding material and protrudes beyond the first end (1) of the protective or plug body (16).
  13. Method according to one of the claims 10 to 12, characterized in that the protective or plug body (16) is injection-molded so as to completely surround the first and second capsule parts (6,7).
  14. Method according to one of the claims 10 to 13, characterized in that the material of the protective or plug body (16) enters into an integral connection with the second capsule part (7) and at least the second section (8) of the first capsule part (6).
  15. Method according to one of the claims 10 to 14, characterized in that the recess of the second section (8) of the first capsule part (6) and the recess of the second capsule part (7), which are arranged on both sides of the sealing element (4), are mounted with a fit resistant against the penetration of flowable injection-molding material by sliding onto the cable (2) against the sheath (15).
EP12305090.8A 2010-01-25 2012-01-25 Coupling unit for lines Active EP2485337B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12305090.8A EP2485337B1 (en) 2011-02-02 2012-01-25 Coupling unit for lines
US13/362,163 US8550846B2 (en) 2010-01-25 2012-01-31 Coupling part for electrical lines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11305103A EP2485336A1 (en) 2011-02-02 2011-02-02 Coupling unit for lines
EP12305090.8A EP2485337B1 (en) 2011-02-02 2012-01-25 Coupling unit for lines

Publications (3)

Publication Number Publication Date
EP2485337A2 EP2485337A2 (en) 2012-08-08
EP2485337A3 EP2485337A3 (en) 2013-03-20
EP2485337B1 true EP2485337B1 (en) 2015-03-04

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EP11305103A Withdrawn EP2485336A1 (en) 2010-01-25 2011-02-02 Coupling unit for lines
EP12305090.8A Active EP2485337B1 (en) 2010-01-25 2012-01-25 Coupling unit for lines

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Also Published As

Publication number Publication date
US20120184128A1 (en) 2012-07-19
US8550846B2 (en) 2013-10-08
EP2485336A1 (en) 2012-08-08
EP2485337A2 (en) 2012-08-08
EP2485337A3 (en) 2013-03-20

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