EP3396781B1 - Electrical coupling part and method of manufacturing the coupling part - Google Patents

Electrical coupling part and method of manufacturing the coupling part Download PDF

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Publication number
EP3396781B1
EP3396781B1 EP17305464.4A EP17305464A EP3396781B1 EP 3396781 B1 EP3396781 B1 EP 3396781B1 EP 17305464 A EP17305464 A EP 17305464A EP 3396781 B1 EP3396781 B1 EP 3396781B1
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EP
European Patent Office
Prior art keywords
coupling part
electrical
line
contact carrier
sealing disk
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
EP17305464.4A
Other languages
German (de)
French (fr)
Other versions
EP3396781A1 (en
Inventor
Franz Völkl
Dietmar VÖLKL
Richard Riedel
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
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Publication date
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Priority to EP17305464.4A priority Critical patent/EP3396781B1/en
Publication of EP3396781A1 publication Critical patent/EP3396781A1/en
Application granted granted Critical
Publication of EP3396781B1 publication Critical patent/EP3396781B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • 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
    • H01R13/5208—Sealing means between cable and housing, e.g. grommet having at least two cable receiving openings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/005—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/24—Assembling by moulding on contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the invention relates to a two-part electrical coupling part for attachment to an electrical line and a method for producing the coupling part.
  • Electrical coupling parts of the generic type are used, for example, in the automotive sector to connect electrical assemblies and components to one another. For example, it is necessary to electrically connect ABS sensors in each wheel of a vehicle with a corresponding ABS control unit.
  • the electrical coupling parts are exposed to harsh operating conditions, including mechanical vibrations, dirt and splash water. Nevertheless, it is required that the relevant electrical connections function reliably over a long period of use.
  • two-part plugs are used for the stated purpose, which are protected against harmful environmental influences with a cap that can be fitted on the line side.
  • a one-piece plug with an electrical line in which a clamping body is attached to a contact body, onto which a protective body is molded, which surrounds the electrical line.
  • sealing elements are arranged in through holes of the contact body, through which the electrical conductors of the electrical line are guided and which seal the through holes.
  • the DE 34 17 811 C1 discloses a coupling part for a line having a plurality of cores.
  • a socket is molded, which is composed of a carrier with contact parts and a molded protective body.
  • a hot-melt adhesive is applied to the end of the line and solidifies when it comes into contact with the contact parts that are at room temperature. As a result, it does not penetrate through holes and effectively closes them against the liquid material of the protective body when it is injected in an injection molding tool.
  • the DE 36 23 927 C1 relates to a coupling part for a line with many cores, on which individual seals are placed in order to seal off each through hole in the coupling part.
  • the US 2011/318951 A1 describes a coupling part for an electrical line with a plurality of wires, which has a contact carrier and an outer housing which seals the coupling part.
  • the EP 2 722 935 A1 shows a coupling part for a large number of individual lines.
  • a soft elastic seal is provided; which is placed on a carrier and then pushed into the contact part.
  • One of the purposes of the carrier is to stiffen the elastic seal.
  • FR 2 866 485 A1 relates to a coupling part which has a contact carrier, on the cable-side end face of which a seal is placed and is arranged within a circumferential collar.
  • the seal is held with a part for guiding lines.
  • the seal has openings for the lines, which are initially closed with a membrane and are only pierced with a tool that is provided with tips. The tips cut the membranes in a cross shape so that four sealing tabs are created.
  • coupling part denotes both a plug with plug pins and a socket with socket contacts. Accordingly, “contact parts” or “contact elements” are either the plug pins or the socket contacts.
  • an electrical coupling part for attachment to an electrical line has a plurality of electrical conductors surrounded by insulation, which are surrounded by a common jacket made of insulating material.
  • the coupling part further comprises a contact carrier which is provided with through-holes for receiving electrical contact parts, which in the assembly position are each electrically connected to an electrical conductor of the line.
  • the coupling part has a molded-on protective body and is characterized in that the coupling part comprises an outer housing into which the contact carrier is inserted and a sealing washer on the end face of the coupling part facing the line, which is formed jointly by the contact carrier and the outer housing is arranged closely adjacent, and that the sealing washer has through-openings for passing through the electrical conductors of the line, which are surrounded by insulation and are dimensioned such that the sealing washer lies tightly against the insulation in the assembly position.
  • the sealing washer has sealing pegs which close assembly slots arranged between the outer housing and the contact carrier. This measure also serves to prevent the penetration of spray material into the contact carrier.
  • the sealing washer can also be designed in several parts.
  • the sealing washer prevents spray material from penetrating into the through holes of the contact carrier, into assembly openings or gaps between the contact carrier and the outer housing and impairing the functionality of the coupling part when the protective body is molded on.
  • the molded protective body is resistant to mechanical loads, splash water and dirt.
  • the through holes in the contact carrier are arranged in two rows lying parallel to one another and the sealing washer is designed in three parts.
  • the sealing washer has two outer limbs and one central limb, which are connected via film bridges, which simplifies the handling of the sealing washer in production compared to a situation in which the outer and central limbs are three completely separate parts.
  • the sealing washer forms a labyrinth seal on the end face facing the line, which is formed jointly by the contact carrier and the outer housing.
  • the labyrinth seal is used to reliably seal the contact carrier against the ingress of liquid spray material.
  • each electrical line is provided with an individual seal which is arranged on the insulation of the electrical line in the through hole in which the respective electrical line is connected to a contact part, and which seals the through hole.
  • the individual seals are an additional measure to prevent spray material from penetrating the contact carrier.
  • Fig. 1 shows a two-part coupling part 1 according to the invention in a perspective view with a multi-core line 2 connected thereto.
  • the coupling part 1 has an outer housing 3 onto which a protective body 4 is molded.
  • the molded protective body 4 is more resistant to environmental influences and mechanical damage than an attached cap, which is known from the prior art.
  • Figure 2A shows an inner housing which forms a contact carrier 6 for the coupling part 1.
  • the contact carrier is made of mechanically stable insulating material such as polyamide (PA) or polybutylene terephthalate (PBT).
  • Through holes 7, into which contact elements (not shown) are inserted, are provided in the contact carrier 6.
  • the through holes 7 are arranged in two parallel rows.
  • the contact carrier 6 has only one example and the invention is not limited to a specific number of through holes or to a specific manner in which the through holes are arranged in the contact carrier 6. In other exemplary embodiments, more or fewer through holes can be provided.
  • 7 contact elements are not necessarily inserted into all through holes. Rather, the number of contact elements depends on the requirements of the particular application.
  • a technical production advantage here is that with only one contact carrier 6 with a relatively large number of through holes Numerous use cases can be covered that require a different number of contacts.
  • Figure 2B shows the outer housing 3 of the coupling part 1, into which the contact carrier 6 is inserted and where it latches in the installed position.
  • Mounting slots 8 and latching elements (not shown) are provided in the outer housing 3.
  • the outer housing 3 is also provided with a bracket 9 with which the coupling part is locked on its counterpart when it is slipped onto the counterpart.
  • the counterpart can be a plug or a socket depending on the application.
  • FIG. 2C the contact carrier 6 inserted into the outer housing 3 is shown.
  • the contact elements are formed from sheet metal strips and are equipped with a locking element, by which they are secured against axial displacement after being inserted into the contact carrier 6.
  • the in Figure 2D The application example shown has the line 2 to be connected to the coupling part 1 on five wires 11 which are each formed from an electrical conductor which is surrounded by insulation.
  • the contact elements are each crimped onto a stripped end of a wire 11 and inserted into a through hole 7 of the contact carrier 6, where the contact elements latch.
  • the coupling part 1 shown is not yet suitable for use because the contact elements are not protected from environmental influences and there is no strain relief for the line 2.
  • the in Fig. 1 Protective body 4 shown which is injection-molded onto the outer housing 3. It should be taken into account here that the through openings 7 and the contact elements must be protected from the spray material of a protective body produced by injection molding so that the contact elements are not covered by spray material and lose their functionality. In addition, without countermeasures, there is also the risk that the spray material will partially or completely close the through holes and the coupling part will no longer be able to be inserted at all.
  • a sealing washer 14 is therefore placed on a line-side end face 12, which is formed by the contact carrier 6 and the outer housing 3, as shown in FIG Figure 2E can be seen.
  • the sealing washer 14 is seated with a press fit on the end face 12 in order to ensure a good seal.
  • the sealing washer 14 is formed in three parts and in the Figures 3A and 3B shown in greater detail.
  • Figure 2F shows the coupling part 1 according to the invention with molded protective body 4 partially in a cross-sectional view, in which it can be seen that the protective body 4 overlaps the upper area of the outer housing 3 and thus has a secure hold on the outer housing 3 and at the same time seals the outer housing 3 against environmental influences.
  • the protective body 4 consists for example of PA or PBT and is produced by injection molding in a suitable injection molding tool.
  • the outer housing 3 can also have grooves or be corrugated in its upper area. It can also be seen how the sealing washer protects the contact carrier 6 from the penetration of spray material.
  • Figure 3A shows the three-part sealing washer 14, which has two outer legs 16, 17 and a central leg 18, which are connected to one another via two film bridges 20, 21. In the middle limb 18 or the outer limbs 16, 17, semicircular recesses 22 are provided which face one another in pairs.
  • the sealing washer 14 has two lugs 23 on each of the outer legs 16, 17 which are arranged opposite corresponding recesses 24.
  • FIG 3B the sealing washer 14 is off Figure 3A again shown in a perspective view in which the film bridges 20, 21 are better visible.
  • the Figures 3A and 3B show the sealing washer 14 after its manufacture as an injection molded part, which is also referred to as a “tool layer”.
  • FIGs 4A and 4B are corresponding representations which show the sealing washer 14 in the installed position.
  • the lugs 23 of the outer legs 16, 17 are received in the recesses 24 in the center leg 18.
  • the recesses 22 of the outer limbs 16, 17 or of the central limb 18 join together to form round openings, the diameter of which is dimensioned such that the edge of the openings tightly encloses the insulation of the wires 11.
  • Figure 4B shows the in Figure 4A illustrated installation position of the sealing washer 14 in a perspective view.
  • the underside of the sealing washer is designed such that it forms a labyrinth seal with the end face 12, which is formed by the contact carrier 6 and the outer housing 3.
  • sealing pins (not shown) molded onto the underside of the sealing washer close the assembly slots 8 of the outer housing 3 is tightly closed.
  • the assembly of the sealing washer 14 on the in Figure 2D The coupling part 1 shown here takes place in that the sealing washer 14 is pushed laterally onto the coupling part 1 in such a way that the outer legs 16, 17 encompass the wires 11 of the line 2 from the outside, while the middle limb 18 comes to rest between the wires 11.
  • the sealing washer 14 rests on the end face 12. After the recesses 22 are aligned with the wires 11, or vice versa, the outer legs 16, 17 are pressed towards the middle leg 18 and the sealing washer is locked onto the end face 12.
  • the sealing washer is seated with a press fit on the end face 12.
  • the protective body 4 is then injection molded onto the line side of the coupling part 1.
  • the sealing disk 14 ensures that no spray material penetrates the contact carrier 6 and interferes with the functionality of the contact carrier.
  • the sealing washer 14 is in one piece.
  • the individual wires 11 of the line 2 are inserted through openings in the sealing washer and the sealing washer is, as it were, "parked” on the wires.
  • the contact elements are connected to the stripped ends of the wires 11 and inserted into the contact carrier 6 and latched.
  • the sealing washer is then pressed down onto the end face 12 on which the sealing washer rests with a press fit, as a result of which the sealing washer 14 prevents the penetration of spray material into the contact carrier 6.
  • Fig. 5 shows a flow chart with the individual steps for producing a coupling part 1 according to the invention.
  • step S1 the contact carrier 6 is inserted into the outer housing 3.
  • step S2 contact elements are connected to the wires 11 of the line 2.
  • the connected contact elements are then inserted into the contact carrier 6 in step S3.
  • step S4 the sealing washer 14 is placed and finally in step S5 the protective body 4 is molded on.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Description

Gebietarea

Die Erfindung betrifft ein zweiteiliges elektrisches Kupplungsteil zum Anbringen an einer elektrischen Leitung sowie ein Verfahren zur Herstellung des Kupplungsteils.The invention relates to a two-part electrical coupling part for attachment to an electrical line and a method for producing the coupling part.

Hintergrund der ErfindungBackground of the invention

Elektrische Kupplungsteile der gattungsgemäßen Art werden beispielsweise im Automobilbereich verwendet, um elektrische Aggregate und Komponenten miteinander zu verbinden. Zum Beispiel ist es erforderlich ABS Sensoren in jedem Rad eines Fahrzeuges mit einem entsprechenden ABS Steuergerät elektrisch zu verbinden. Die elektrischen Kupplungsteile sind dabei rauen Einsatzbedingungen ausgesetzt, unter anderem mechanischen Erschütterungen, Schmutz, und Spritzwasser. Trotzdem wird verlangt, dass die betreffenden elektrischen Verbindungen über eine lange Einsatzdauer zuverlässig funktionieren.Electrical coupling parts of the generic type are used, for example, in the automotive sector to connect electrical assemblies and components to one another. For example, it is necessary to electrically connect ABS sensors in each wheel of a vehicle with a corresponding ABS control unit. The electrical coupling parts are exposed to harsh operating conditions, including mechanical vibrations, dirt and splash water. Nevertheless, it is required that the relevant electrical connections function reliably over a long period of use.

Gegenwärtig kommen für den genannten Einsatzzweck zweiteilige Stecker zum Einsatz, die mit einer montierbaren Kappe auf der Leitungsseite gegen schädliche Umwelteinflüsse geschützt werden.At present, two-part plugs are used for the stated purpose, which are protected against harmful environmental influences with a cap that can be fitted on the line side.

Aus der EP 2 099 099B1 ist darüber hinaus ein einteiliger Stecker mit einer elektrischen Leitung bekannt, bei dem auf einem Kontaktkörper ein Klemmkörper angebracht ist, an welchen ein Schutzkörper angespritzt wird, der die elektrische Leitung umgibt. Zusätzlich sind in Durchgangslöchern des Kontaktkörpers Dichtungselemente angeordnet, durch welche die elektrischen Leiter der elektrischen Leitung geführt sind und die die Durchgangslöcher abdichten.From the EP 2 099 099B1 In addition, a one-piece plug with an electrical line is known, in which a clamping body is attached to a contact body, onto which a protective body is molded, which surrounds the electrical line. In addition, sealing elements are arranged in through holes of the contact body, through which the electrical conductors of the electrical line are guided and which seal the through holes.

Die DE 34 17 811 C1 offenbart ein Kupplungsteil für eine Leitung, die mehrere Adern aufweist. An das Ende der Leitung ist eine Steckdose angespritzt, die aus einem Träger mit Kontaktteilen und einem angespritzten Schutzkörper aufgebaut ist. Auf das leitungsseitige Ende wird ein Heißschmelzkleber aufgebracht, der bei Berührung mit den Kontaktteilen, die sich bei Raumtemperatur befinden, erstarrt. Dadurch dringt er nicht in Durchgangslöcher ein und verschließt sie wirksam gegen das flüssige Material des Schutzkörpers, wenn dieser in einem Spritzwerkzeug gespritzt wird.The DE 34 17 811 C1 discloses a coupling part for a line having a plurality of cores. At the end of the line, a socket is molded, which is composed of a carrier with contact parts and a molded protective body. A hot-melt adhesive is applied to the end of the line and solidifies when it comes into contact with the contact parts that are at room temperature. As a result, it does not penetrate through holes and effectively closes them against the liquid material of the protective body when it is injected in an injection molding tool.

Die DE 36 23 927 C1 betrifft ein Kupplungsteil für eine Leitung mit vielen Adern, auf die Einzeldichtungen aufgesetzt werden, um jedes Durchgangsloch in dem Kupplungsteil dicht zu verschließen.The DE 36 23 927 C1 relates to a coupling part for a line with many cores, on which individual seals are placed in order to seal off each through hole in the coupling part.

Die US 2011/318951 A1 beschreibt ein Kupplungsteil für eine elektrische Leitung mit mehreren Adern, das einen Kontaktträger und ein Außengehäuse aufweist, welches das Kupplungsteil abdichtet.The US 2011/318951 A1 describes a coupling part for an electrical line with a plurality of wires, which has a contact carrier and an outer housing which seals the coupling part.

Die EP 2 722 935 A1 zeigt ein Kupplungsteil für eine Vielzahl von Einzelleitungen. Um die einzelnen Leitungen abzudichten, ist eine weiche elastische Dichtung vorgesehen; die auf einen Träger aufgelegt und dann in das Kontaktteil eingeschoben wird. Der Träger hat unter anderem den Zweck, die elastische Dichtung zu versteifen.The EP 2 722 935 A1 shows a coupling part for a large number of individual lines. To seal the individual lines, a soft elastic seal is provided; which is placed on a carrier and then pushed into the contact part. One of the purposes of the carrier is to stiffen the elastic seal.

FR 2 866 485 A1 bezieht sich auf ein Kupplungsteil, das einen Kontaktträger aufweist, auf dessen kabelseitiger Stirnfläche eine Dichtung aufgelegt und innerhalb eines umlaufenden Kragens angeordnet ist. Die Dichtung wird mit einem Teil zur Führung von Leitungen gehalten. Die Dichtung weist Durchlasse für die Leitungen auf, die anfänglich mit einer Membran verschlossen sind und erst mit einem Werkzeug durchstochen werden, das mit Spitzen versehen ist. Die Spitzen schneiden die Membranen kreuzförmig ein, so dass vier Dichtlappen entstehen. FR 2 866 485 A1 relates to a coupling part which has a contact carrier, on the cable-side end face of which a seal is placed and is arranged within a circumferential collar. The seal is held with a part for guiding lines. The seal has openings for the lines, which are initially closed with a membrane and are only pierced with a tool that is provided with tips. The tips cut the membranes in a cross shape so that four sealing tabs are created.

Hiervon ausgehend ist es eine Aufgabe der vorliegenden Erfindung ein verbessertes zweiteiliges Kupplungsteil sowie ein Verfahren zur Herstellung eines solchen Kupplungsteils zu schaffen.Starting from this, it is an object of the present invention to create an improved two-part coupling part and a method for producing such a coupling part.

Zusammenfassung der ErfindungSummary of the invention

Im Sinne der vorliegenden Anmeldung bezeichnet der Begriff "Kupplungsteil" sowohl einen Stecker mit Steckerstiften als auch eine Dose mit Dosenkontakten. Dementsprechend sind "Kontaktteile" bzw. "Kontaktelemente" also entweder die Steckerstifte oder die Dosenkontakte.In the context of the present application, the term “coupling part” denotes both a plug with plug pins and a socket with socket contacts. Accordingly, “contact parts” or “contact elements” are either the plug pins or the socket contacts.

Nach einem ersten Aspekt der vorliegenden Erfindung wird ein elektrisches Kupplungsteil zum Anbringen an einer elektrischen Leitung vorgeschlagen. Die Leitung weist mehrere von einer Isolierung umgebene elektrische Leiter auf, die von einem gemeinsamen Mantel aus Isoliermaterial umgeben sind. Das Kupplungsteil umfasst weiterhin einen Kontaktträger, der mit Durchgangslöchern zur Aufnahme von elektrischen Kontaktteilen versehen ist, die in Montageposition mit jeweils einem elektrischen Leiter der Leitung elektrisch verbunden sind. Darüber hinaus weist das Kupplungsteil einen angespritzten Schutzkörper auf und zeichnet sich dadurch aus, dass das Kupplungsteil ein Außengehäuse umfasst, in das der Kontaktträger eingesteckt ist, dass auf der der Leitung zugewandten Stirnfläche des Kupplungsteils, die von Kontaktträger und Außengehäuse gemeinsam gebildet wird, eine Dichtungsscheibe dicht anliegend angeordnet ist, und dass die Dichtungsscheibe Durchgangsöffnungen zum Durchführen der von einer Isolierung umgebenen elektrischen Leiter der Leitung aufweist, die so bemessen sind, dass die Dichtungsscheibe in Montageposition dicht an der Isolierung anliegt. Die Dichtungsscheibe weist Dichtzapfen auf, die zwischen dem Außengehäuse und dem Kontaktträger angeordnete Montageschlitze verschließen. Auch diese Maßnahme dient dazu, das Eindringen von Spritzmaterial in den Kontaktträger zu verhindern. Die Dichtungsscheibe kann auch mehrteilig ausgebildet sein.According to a first aspect of the present invention, an electrical coupling part for attachment to an electrical line is proposed. The line has a plurality of electrical conductors surrounded by insulation, which are surrounded by a common jacket made of insulating material. The coupling part further comprises a contact carrier which is provided with through-holes for receiving electrical contact parts, which in the assembly position are each electrically connected to an electrical conductor of the line. In addition, the coupling part has a molded-on protective body and is characterized in that the coupling part comprises an outer housing into which the contact carrier is inserted and a sealing washer on the end face of the coupling part facing the line, which is formed jointly by the contact carrier and the outer housing is arranged closely adjacent, and that the sealing washer has through-openings for passing through the electrical conductors of the line, which are surrounded by insulation and are dimensioned such that the sealing washer lies tightly against the insulation in the assembly position. The sealing washer has sealing pegs which close assembly slots arranged between the outer housing and the contact carrier. This measure also serves to prevent the penetration of spray material into the contact carrier. The sealing washer can also be designed in several parts.

Die Dichtungsscheibe verhindert, dass bei dem Anspritzen des Schutzkörpers Spritzmaterial in die Durchgangslöcher des Kontaktträgers, in Montageöffnungen oder Spalte zwischen dem Kontaktträger und dem Außengehäuse eindringen und die Funktionsfähigkeit des Kupplungsteils beeinträchtigen kann. Der angespritzte Schutzkörper ist widerstandsfähig gegen mechanische Belastungen, Spritzwasser und Schmutz.The sealing washer prevents spray material from penetrating into the through holes of the contact carrier, into assembly openings or gaps between the contact carrier and the outer housing and impairing the functionality of the coupling part when the protective body is molded on. The molded protective body is resistant to mechanical loads, splash water and dirt.

Bei einem Ausführungsbeispiel sind die Durchgangslöcher in dem Kontaktträger in zwei parallel zueinander liegenden Reihen angeordnet und die Dichtungsscheibe ist dreiteilig ausgebildet. Bei einer Weiterbildung weist die Dichtungsscheibe zwei Außenschenkel und einen Mittelschenkel auf, die über Filmbrücken verbunden sind, was die Handhabung der Dichtungsscheibe in der Produktion vereinfacht im Vergleich zu einer Situation, in der Außen- und Mittelschenkel drei vollständig voneinander getrennte Teile sind.In one embodiment, the through holes in the contact carrier are arranged in two rows lying parallel to one another and the sealing washer is designed in three parts. In a further development, the sealing washer has two outer limbs and one central limb, which are connected via film bridges, which simplifies the handling of the sealing washer in production compared to a situation in which the outer and central limbs are three completely separate parts.

Es hat sich als vorteilhaft erwiesen, wenn die Dichtungsscheibe auf der der Leitung zugewandten Stirnfläche, die von Kontaktträger und Außengehäuse gemeinsam gebildet wird, eine Labyrinthdichtung bildet. Die Labyrinthdichtung dient einer zuverlässigen Abdichtung des Kontaktträgers gegen das Eindringen von flüssigem Spritzmaterial.It has proven to be advantageous if the sealing washer forms a labyrinth seal on the end face facing the line, which is formed jointly by the contact carrier and the outer housing. The labyrinth seal is used to reliably seal the contact carrier against the ingress of liquid spray material.

In einer erfindungsgemäßen Weiterbildung ist jede elektrische Leitung mit einer Einzeldichtung versehen, die auf der Isolierung der elektrischen Leitung in dem Durchgangsloch angeordnet ist, in der die jeweilige elektrische Leitung an ein Kontaktteil angeschlossen ist, und die das Durchgangsloch abdichtet. Die Einzeldichtungen sind eine zusätzliche Maßnahme, um zu verhindern, dass Spritzmaterial in den Kontaktträger eindringen kann.In a further development according to the invention, each electrical line is provided with an individual seal which is arranged on the insulation of the electrical line in the through hole in which the respective electrical line is connected to a contact part, and which seals the through hole. The individual seals are an additional measure to prevent spray material from penetrating the contact carrier.

Nach einem zweiten Aspekt der vorliegenden Erfindung wird ein Verfahren zur Herstellung eines erfindungsgemäßen Kupplungsteils vorgeschlagen. Das Verfahren wird im unabhängigen Anspruch 7 definiert.According to a second aspect of the present invention, a method for producing a coupling part according to the invention is proposed. The method is defined in independent claim 7.

Kurze Beschreibung der ZeichnungBrief description of the drawing

Nachfolgend wird die Erfindung anhand von Ausführungsformen unter Bezugnahme auf die begleitenden Fig. exemplarisch näher erläutert. Es zeigen

  • Fig. 1 eine perspektivische Ansicht des erfindungsgemäßen Kupplungsteils;
  • Fig. 2A bis 2F eine Veranschaulichung des Aufbaus des Kupplungsteils aus Fig. 1;
  • Fig. 3A und 3B eine Dichtungsscheibe in Werkzeuglage;
  • Fig. 4A und 4B eine Dichtungsscheibe in Einbaulage; und
  • Fig. 5 ein Flussdiagramm des erfindungsgemäßen Herstellungsverfahrens.
In the following, the invention will be explained in greater detail using exemplary embodiments with reference to the accompanying figures. Show it
  • Fig. 1 a perspective view of the coupling part according to the invention;
  • Figures 2A through 2F an illustration of the structure of the coupling part Fig. 1 ;
  • Figures 3A and 3B a sealing washer in the tool position;
  • Figures 4A and 4B a sealing washer in the installed position; and
  • Fig. 5 a flow chart of the manufacturing method according to the invention.

Gleiche oder ähnliche Elemente sind in den Figuren mit gleichen oder ähnlichen Bezugszeichen versehen.The same or similar elements are provided with the same or similar reference symbols in the figures.

AusführungsbeispielEmbodiment

Fig. 1 zeigt ein erfindungsgemäßes zweiteiliges Kupplungsteil 1 in einer perspektivischen Ansicht mit einer daran angeschlossenen mehradrigen Leitung 2. Das Kupplungsteil 1 weist ein Außengehäuse 3 auf, an das ein Schutzkörper 4 angespritzt ist. Der angespritzte Schutzkörper 4 ist widerstandsfähiger gegen Umwelteinflüsse und mechanische Beschädigung als eine aufgesetzte Kappe, die aus dem Stand der Technik bekannt ist. Fig. 1 shows a two-part coupling part 1 according to the invention in a perspective view with a multi-core line 2 connected thereto. The coupling part 1 has an outer housing 3 onto which a protective body 4 is molded. The molded protective body 4 is more resistant to environmental influences and mechanical damage than an attached cap, which is known from the prior art.

Mit Bezug auf Fig. 2 wird der Aufbau des Kupplungsteils 1 im Folgenden näher erläutert.Regarding Fig. 2 the structure of the coupling part 1 is explained in more detail below.

Fig. 2A zeigt ein Innengehäuse, das einen Kontaktträger 6 für das Kupplungsteil 1 bildet. Der Kontaktträger ist aus mechanisch stabilem Isoliermaterial, wie beispielsweise Polyamid (PA) oder Polybutylenterephthalat (PBT), hergestellt. In dem Kontaktträger 6 sind Durchgangslöcher 7 vorgesehen, in welche Kontaktelemente (nicht gezeigt) eingesetzt werden. Die Durchgangslöcher 7 sind in zwei parallelen Reihen angeordnet. Der Kontaktträger 6 hat nur ein Beispiel und die Erfindung ist nicht auf eine bestimmte Anzahl von Durchgangslöchern oder auf eine bestimmte Art und Weise wie die Durchgangslöcher in dem Kontaktträger 6 angeordnet sind beschränkt. In anderen Ausführungsbeispielen können mehr oder weniger Durchgangslöcher vorgesehen sein. Darüber hinaus werden nicht notwendigerweise in alle Durchgangslöcher 7 Kontaktelemente eingesetzt. Die Anzahl der Kontaktelemente richtet sich vielmehr nach den Erfordernissen des jeweiligen Anwendungsfalles. Ein produktionstechnischer Vorteil hierbei ist, dass mit nur einem Kontaktträger 6 mit relativ vielen Durchgangslöchern zahlreiche Anwendungsfälle abgedeckt werden können, die eine unterschiedliche Anzahl von Kontakten erfordern. Figure 2A shows an inner housing which forms a contact carrier 6 for the coupling part 1. The contact carrier is made of mechanically stable insulating material such as polyamide (PA) or polybutylene terephthalate (PBT). Through holes 7, into which contact elements (not shown) are inserted, are provided in the contact carrier 6. The through holes 7 are arranged in two parallel rows. The contact carrier 6 has only one example and the invention is not limited to a specific number of through holes or to a specific manner in which the through holes are arranged in the contact carrier 6. In other exemplary embodiments, more or fewer through holes can be provided. In addition, 7 contact elements are not necessarily inserted into all through holes. Rather, the number of contact elements depends on the requirements of the particular application. A technical production advantage here is that with only one contact carrier 6 with a relatively large number of through holes Numerous use cases can be covered that require a different number of contacts.

Fig. 2B zeigt das Außengehäuse 3 des Kupplungsteils 1, in das der Kontaktträger 6 eingesetzt wird und wo er in Einbaulage verrastet. In dem Außengehäuse 3 sind Montageschlitze 8 und Rastelemente (nicht gezeigt) vorgesehen. Das Außengehäuse 3 ist außerdem mit einem Bügel 9 versehen, mit dem das Kupplungsteil auf seinem Gegenstück verriegelt wird, wenn es auf das Gegenstück aufgesteckt ist. Das Gegenstück kann je nach Anwendungsfall ein Stecker oder eine Dose sein. Figure 2B shows the outer housing 3 of the coupling part 1, into which the contact carrier 6 is inserted and where it latches in the installed position. Mounting slots 8 and latching elements (not shown) are provided in the outer housing 3. The outer housing 3 is also provided with a bracket 9 with which the coupling part is locked on its counterpart when it is slipped onto the counterpart. The counterpart can be a plug or a socket depending on the application.

Fig. 2C gezeigt den in das Außengehäuse 3 eingesetzten Kontaktträger 6. Figure 2C the contact carrier 6 inserted into the outer housing 3 is shown.

Die Kontaktelemente sind aus Blechstreifen geformt und sind mit einem Rastelement ausgerüstet, durch welches sie nach dem Einsetzen in den Kontaktträger 6 gegen axiale Verschiebung gesichert sind. Bei dem in Fig. 2D gezeigten Anwendungsbeispiel weist die mit dem Kupplungsteil 1 zu verbindende Leitung 2 fünf Adern 11 auf, die jeweils aus einem elektrischen Leiter gebildet sind, der von einer Isolation umgeben ist. Die Kontaktelemente werden jeweils auf ein abisoliertes Ende einer Ader 11 aufgecrimpt und in ein Durchgangsloch 7 des Kontaktträgers 6 eingesteckt, wo die Kontaktelemente verrasten.The contact elements are formed from sheet metal strips and are equipped with a locking element, by which they are secured against axial displacement after being inserted into the contact carrier 6. The in Figure 2D The application example shown has the line 2 to be connected to the coupling part 1 on five wires 11 which are each formed from an electrical conductor which is surrounded by insulation. The contact elements are each crimped onto a stripped end of a wire 11 and inserted into a through hole 7 of the contact carrier 6, where the contact elements latch.

Das insoweit beschriebene und in Fig. 2 die gezeigte Kupplungsteil 1 ist noch nicht verwendungstauglich, weil weder die Kontaktelemente vor Umwelteinflüssen geschützt sind noch eine Zugentlastung für die Leitung 2 vorhanden ist. Diesen Zweck erfüllt der in Fig. 1 gezeigte Schutzkörper 4, der an das Außengehäuse 3 angespritzt ist. Dabei ist zu berücksichtigen, dass die Durchgangsöffnungen 7 und die Kontaktelemente vor dem Spritzmaterial eines durch Spritzgießen hergestellten Schutzkörpers geschützt werden müssen, damit die Kontaktelemente nicht von Spritzmaterial bedeckt werden und ihre Funktionsfähigkeit verlieren. Außerdem besteht ohne Gegenmaßnahmen auch die Gefahr, dass das Spritzmaterial Durchgangslöcher teilweise oder ganz verschließt und das Kupplungsteil gar nicht mehr steckbar ist.The so far described and in Fig. 2 the coupling part 1 shown is not yet suitable for use because the contact elements are not protected from environmental influences and there is no strain relief for the line 2. The in Fig. 1 Protective body 4 shown, which is injection-molded onto the outer housing 3. It should be taken into account here that the through openings 7 and the contact elements must be protected from the spray material of a protective body produced by injection molding so that the contact elements are not covered by spray material and lose their functionality. In addition, without countermeasures, there is also the risk that the spray material will partially or completely close the through holes and the coupling part will no longer be able to be inserted at all.

Bei dem erfindungsgemäßen Kupplungsteil ist deshalb auf eine leitungsseitige Stirnfläche 12, die von dem Kontaktträger 6 und dem Außengehäuse 3 gebildet wird, eine Dichtungsscheibe 14 aufgesetzt, wie aus Fig. 2E ersichtlich ist. Die Dichtungsscheibe 14 sitzt mit Presssitz auf der Stirnfläche 12, um eine gute Abdichtung zu gewährleisten. Die Dichtungsscheibe 14 ist dreiteilig ausgebildet und in den Fig. 3A und 3B in größerer Einzelheit dargestellt.In the coupling part according to the invention, a sealing washer 14 is therefore placed on a line-side end face 12, which is formed by the contact carrier 6 and the outer housing 3, as shown in FIG Figure 2E can be seen. The sealing washer 14 is seated with a press fit on the end face 12 in order to ensure a good seal. The sealing washer 14 is formed in three parts and in the Figures 3A and 3B shown in greater detail.

Fig. 2F zeigt das erfindungsgemäße Kupplungsteil 1 mit angespritztem Schutzkörper 4 teilweise in einer Querschnittsdarstellung, in der zu erkennen ist, dass der Schutzkörper 4 den oberen Bereich des Außengehäuses 3 übergreift und so einen sicheren Halt auf dem Außengehäuse 3 hat und gleichzeitig das Außengehäuse 3 gegenüber Umwelteinflüssen abdichtet. Der Schutzkörper 4 besteht zum Beispiel aus PA oder PBT und wird durch Spritzgießen in einem entsprechenden Spritzgießwerkzeug hergestellt. Um die Verbindung zwischen Außengehäuse 3 und Schutzkörper 4 zu verbessern, kann das Außengehäuse 3 in seinem oberen Bereich auch Rillen aufweisen bzw. geriffelt sein. Außerdem ist zu erkennen, wie die Dichtungsscheibe den Kontaktträger 6 vor dem Eindringen von Spritzmaterial schützt. Figure 2F shows the coupling part 1 according to the invention with molded protective body 4 partially in a cross-sectional view, in which it can be seen that the protective body 4 overlaps the upper area of the outer housing 3 and thus has a secure hold on the outer housing 3 and at the same time seals the outer housing 3 against environmental influences. The protective body 4 consists for example of PA or PBT and is produced by injection molding in a suitable injection molding tool. In order to improve the connection between the outer housing 3 and the protective body 4, the outer housing 3 can also have grooves or be corrugated in its upper area. It can also be seen how the sealing washer protects the contact carrier 6 from the penetration of spray material.

Fig. 3A zeigt die dreiteilige Dichtungsscheibe 14, die zwei Außenschenkel 16, 17 und einen Mittelschenkel 18 aufweist, die miteinander über zwei Filmbrücken 20, 21 verbunden sind. In dem Mittelschenkel 18 bzw. den Außenschenkeln 16, 17 sind halbkreisförmige Ausnehmungen 22 vorgesehen, die sich paarweise gegenüberstehen. Die Dichtungsscheibe 14 weist an den Außenschenkeln 16, 17 jeweils zwei Nasen 23 auf, die gegenüber von entsprechenden Aussparungen 24 angeordnet sind. Figure 3A shows the three-part sealing washer 14, which has two outer legs 16, 17 and a central leg 18, which are connected to one another via two film bridges 20, 21. In the middle limb 18 or the outer limbs 16, 17, semicircular recesses 22 are provided which face one another in pairs. The sealing washer 14 has two lugs 23 on each of the outer legs 16, 17 which are arranged opposite corresponding recesses 24.

In Fig. 3B ist die Dichtungsscheibe 14 aus Fig. 3A nochmals in einer perspektivischen Ansicht dargestellt, in der die Filmbrücken 20, 21 besser sichtbar sind. Die Fig. 3A und 3B zeigen die Dichtungsscheibe 14 nach ihrer Herstellung als Spritzgussteil, was auch als "Werkzeuglage" bezeichnet wird.In Figure 3B the sealing washer 14 is off Figure 3A again shown in a perspective view in which the film bridges 20, 21 are better visible. The Figures 3A and 3B show the sealing washer 14 after its manufacture as an injection molded part, which is also referred to as a “tool layer”.

Die Fig. 4A und 4B sind entsprechende Darstellungen, welche die Dichtungsscheibe 14 in Einbaulage zeigen. In Fig. 4A ist zu erkennen, dass in Einbaulage die Nasen 23 der Außenschenkel 16, 17 in den Aussparungen 24 in dem Mittelschenkel 18 aufgenommen sind. Die Ausnehmungen 22 der Außenschenkel 16, 17 bzw. des Mittelschenkels 18 fügen sich zu runden Öffnungen zusammen, deren Durchmesser so bemessen ist, dass der Rand der Öffnungen die Isolation der Adern 11 dicht umschließt.The Figures 4A and 4B are corresponding representations which show the sealing washer 14 in the installed position. In Figure 4A it can be seen that in Installation position, the lugs 23 of the outer legs 16, 17 are received in the recesses 24 in the center leg 18. The recesses 22 of the outer limbs 16, 17 or of the central limb 18 join together to form round openings, the diameter of which is dimensioned such that the edge of the openings tightly encloses the insulation of the wires 11.

Fig. 4B zeigt die in Fig. 4A dargestellte Einbaulage der Dichtungsscheibe 14 in einer perspektivischen Ansicht. Figure 4B shows the in Figure 4A illustrated installation position of the sealing washer 14 in a perspective view.

Die Unterseite der Dichtungsscheibe ist so gestaltet, dass sie mit der Stirnfläche 12, die von dem Kontaktträger 6 und dem Außengehäuse 3 gebildet wird, eine Labyrinthdichtung bildet. Bei der Montage der Dichtungsscheibe verschließen an der Unterseite der Dichtungsscheibe angespritzte Dichtzapfen (nicht dargestellt) die Montageschlitze 8 des Außengehäuses 3. Die Dichtscheibe überdeckt außerdem die Teilungskanten zwischen dem Kontaktträgers 6 und dem Außengehäuse 3. Insgesamt wird durch diese Maßnahmen erreicht, dass das Kupplungsteil leitungsseitig dicht verschlossen ist.The underside of the sealing washer is designed such that it forms a labyrinth seal with the end face 12, which is formed by the contact carrier 6 and the outer housing 3. When assembling the sealing washer, sealing pins (not shown) molded onto the underside of the sealing washer close the assembly slots 8 of the outer housing 3 is tightly closed.

Die Montage der Dichtungsscheibe 14 auf dem in Fig. 2D dargestellten Kupplungsteil 1 erfolgt dadurch, dass die Dichtungsscheibe 14 seitlich so auf das Kupplungsteil 1 geschoben wird, dass die Außenschenkel 16, 17 die Adern 11 der Leitung 2 von außen umgreifen, während der Mittelschenkel 18 zwischen den Adern 11 zu liegen kommt. Die Dichtungsscheibe 14 liegt dabei auf der Stirnfläche 12 auf. Nach dem die Ausnehmungen 22 auf die Adern 11 ausgerichtet sind, oder umgekehrt, werden die Außenschenkel 16, 17 zu dem Mittelschenkel 18 hin gedrückt und die Dichtungsscheibe wird auf der Stirnfläche 12 verrastet. Die Dichtungsscheibe sitzt dabei mit einem Presssitz auf der Stirnfläche 12. Danach wird der Schutzkörper 4 auf der Leitungsseite des Kupplungsteils 1 angespritzt. Die Dichtungsscheibe 14 gewährleistet, dass kein Spritzmaterial in den Kontaktträger 6 eindringt und die Funktionsweise des Kontaktträgers stört.The assembly of the sealing washer 14 on the in Figure 2D The coupling part 1 shown here takes place in that the sealing washer 14 is pushed laterally onto the coupling part 1 in such a way that the outer legs 16, 17 encompass the wires 11 of the line 2 from the outside, while the middle limb 18 comes to rest between the wires 11. The sealing washer 14 rests on the end face 12. After the recesses 22 are aligned with the wires 11, or vice versa, the outer legs 16, 17 are pressed towards the middle leg 18 and the sealing washer is locked onto the end face 12. The sealing washer is seated with a press fit on the end face 12. The protective body 4 is then injection molded onto the line side of the coupling part 1. The sealing disk 14 ensures that no spray material penetrates the contact carrier 6 and interferes with the functionality of the contact carrier.

In einer alternativen Ausführungsform ist die Dichtungsscheibe 14 einteilig. Bei der Montage der einteiligen Dichtungsscheibe 14 werden die einzelnen Adern 11 der Leitung 2 durch Öffnungen in der Dichtungsscheibe gesteckt und die Dichtungsscheibe wird auf den Adern gewissermaßen "geparkt". Dann werden die Kontaktelemente mit den abisolierten Enden der Adern 11 verbunden und in den Kontaktträger 6 eingesteckt und verrastet. Danach wird die Dichtungsscheibe auf die Stirnfläche 12 herabgedrückt auf der die Dichtungsscheibe mit Presssitz anliegt, wodurch die Dichtungsscheibe 14 das Eindringen von Spritzmaterial in den Kontaktträger 6 verhindert.In an alternative embodiment, the sealing washer 14 is in one piece. When installing the one-piece sealing washer 14, the individual wires 11 of the line 2 are inserted through openings in the sealing washer and the sealing washer is, as it were, "parked" on the wires. Then the contact elements are connected to the stripped ends of the wires 11 and inserted into the contact carrier 6 and latched. The sealing washer is then pressed down onto the end face 12 on which the sealing washer rests with a press fit, as a result of which the sealing washer 14 prevents the penetration of spray material into the contact carrier 6.

Fig. 5 zeigt ein Flussdiagramm mit den einzelnen Schritten zur Herstellung eines erfindungsgemäßen Kupplungsteils 1. Zunächst wird in Schritt S1 der Kontaktträger 6 in das Außengehäuse 3 eingesetzt. In Schritt S2 werden Kontaktelemente an die Adern 11 der Leitung 2 angeschlossen. Die angeschlossenen Kontaktelemente werden danach in Schritt S3 in den Kontaktträger 6 eingesetzt. Dann wird in Schritt S4 die Dichtungsscheibe 14 aufgesetzt und schließlich in Schritt S5 der Schutzkörper 4 angespritzt. Fig. 5 shows a flow chart with the individual steps for producing a coupling part 1 according to the invention. First, in step S1, the contact carrier 6 is inserted into the outer housing 3. In step S2, contact elements are connected to the wires 11 of the line 2. The connected contact elements are then inserted into the contact carrier 6 in step S3. Then in step S4 the sealing washer 14 is placed and finally in step S5 the protective body 4 is molded on.

In den Ansprüchen schließen die Wörter "aufweisen" und "umfassen" nicht andere Elemente oder Schritte aus und der unbestimmte Artikel "ein" schließt eine Mehrzahl nicht aus.In the claims, the words "comprising" and "comprising" do not exclude other elements or steps, and the indefinite article "a" does not exclude a plurality.

Die Tatsache, dass einzelne Funktionen und Elemente in unterschiedlichen abhängigen Ansprüchen aufgeführt sind, bedeutet nicht, dass nicht auch eine Kombination dieser Funktionen und Elemente vorteilhaft verwendet werden könnte.The fact that individual functions and elements are listed in different dependent claims does not mean that a combination of these functions and elements cannot also be used to advantage.

BezugszeichenlisteList of reference symbols

  • 1 Kupplungsteil1 coupling part
  • 2 Leitung2 line
  • 3 Außengehäuse3 outer casing
  • 4 Schutzkörper4 protective bodies
  • 6 Kontaktträger6 contact carriers
  • 7 Durchgangslöcher7 through holes
  • 8 Montageschlitze8 mounting slots
  • 9 Bügel9 bracket
  • 11 Adern der Leitung 211 wires of line 2
  • 12 Stirnfläche12 face
  • 14 Dichtungsscheibe14 sealing washer
  • 16,17 Außenschenkel16.17 outer thighs
  • 18 Mittelschenkel18 middle legs
  • 20,21 Filmbrücken20.21 film bridges
  • 22 Ausnehmung22 recess
  • 23 Nasen23 noses
  • 24 Aussprachen24 debates
  • S1-S5 VerfahrensschritteS1-S5 process steps

Claims (7)

  1. An electrical coupling part (1) for attaching to an electrical line (2), which has several electrical conductors surrounded by an insulation, which are surrounded by a common sheath consisting of insulation material, having a contact carrier (6), which is provided with through-holes (7) for receiving electrical contact parts, which are electrically connected in the mounting position with in each case one electrical conductor of the line and having a protective body (4) injection-molded thereon
    wherein the coupling part (1) comprises an outer housing (3), into which the contract carrier (6) is inserted,
    wherein on the end face (12) of the coupling part (1) facing the line (2), which is jointly formed by contact carrier (6) and outer housing (3), a sealing disk (14) is arranged in a tight-fitting manner, and
    wherein the sealing disk (14) has through-openings for feeding through the electrical conductors of the line (2) surrounded by an insulation, which are dimensioned, so that the through-openings of the sealing disk (14) fit tightly against the insulations of the conductors in the mounting position,
    characterized in that
    the sealing disk (14) has sealing pins, which close mounting slots (8) arranged between the outer housing (3) and the contact carrier (6).
  2. The electrical coupling part according to claim 1, characterized in that the sealing disk (14) has a multi-part design.
  3. The electrical coupling part according to claim 2, characterized in that the through-holes (7) are arranged in the contact carrier (6) in two rows lying parallel to one another and that the sealing disk (14) has a three-part design.
  4. The electrical coupling part according to claim 3, characterized in that the sealing disk has two outer legs (16, 17) and a central leg (18), which are connected on one side via film bridges (20,21).
  5. The electrical coupling part according to any one of the preceding claims, characterized in that the sealing disk (14) on the end face (12) facing the line (2), which is jointly formed by contact carrier (6) and outer housing (3), forms a labyrinth seal.
  6. The electrical coupling part according to any one of the preceding claims, characterized in that each electrical line is provided with an individual seal, which is arranged on the insulation of the electrical line in the through-hole (7), in which the respective electrical line is connected to a contact element, and which seals the through-hole (7).
  7. A method for the manufacture of a coupling part according to any one of the preceding claims, wherein the method comprises the following steps:
    - connecting several electrical conductors of an electrical line (2) to contact elements, wherein the electrical conductors of the line (2) are surrounded by an insulation; and
    - inserting the contact elements into the contact carrier (6);
    wherein the method is characterized by the steps
    - inserting the contact carrier (6) into an outer housing (3),
    - placing a sealing disk (14) on the end face (12) of the coupling part (1) facing the line (2), which is formed jointly by contact carrier (6) and outer housing (3), wherein through-openings in the sealing disk fit tightly against the insulations of the conductors in the mounting position and the sealing disk (14) has sealing pins, which close mounting slots (8) arranged between the outer housing (3) and the contact carrier (6); and
    - injection-molding around the coupling part (1) on the line side with a protective body (4).
EP17305464.4A 2017-04-26 2017-04-26 Electrical coupling part and method of manufacturing the coupling part Active EP3396781B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17305464.4A EP3396781B1 (en) 2017-04-26 2017-04-26 Electrical coupling part and method of manufacturing the coupling part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17305464.4A EP3396781B1 (en) 2017-04-26 2017-04-26 Electrical coupling part and method of manufacturing the coupling part

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EP3396781A1 EP3396781A1 (en) 2018-10-31
EP3396781B1 true EP3396781B1 (en) 2021-02-17

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417811C1 (en) * 1984-05-14 1985-10-17 kabelmetal electro GmbH, 3000 Hannover Method for fitting a coupling part to the end of an electrical lead
DE3623927C1 (en) * 1986-07-16 1987-10-01 Kabelmetal Electro Gmbh, 3000 Hannover, De Method for fitting a coupling element to the end of an electrical cable (line, lead)
FR2866485A1 (en) * 2004-02-12 2005-08-19 Framatome Connectors Int Electrical connector part, has sealing unit provided for sealing cable passages of cable guiding rail and pierced in selective manner for insertion of contacts in preset sockets, where unit has markings for identification of sockets
EP2099099B1 (en) 2008-03-06 2010-06-09 Nexans Electric coupling unit with attached electric conductor
US8251732B2 (en) * 2010-06-28 2012-08-28 Maxi-Seal Harness Systems Inc. Power input electrical connector
ITTO20120905A1 (en) * 2012-10-16 2014-04-17 Tyco Electronics Amp Italia Srl ELECTRIC CONNECTOR WITH SEALING ELEMENT AND PROCEDURE FOR ASSEMBLY

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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