EP3121908B1 - Electrical connector - Google Patents

Electrical connector Download PDF

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Publication number
EP3121908B1
EP3121908B1 EP16176242.2A EP16176242A EP3121908B1 EP 3121908 B1 EP3121908 B1 EP 3121908B1 EP 16176242 A EP16176242 A EP 16176242A EP 3121908 B1 EP3121908 B1 EP 3121908B1
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EP
European Patent Office
Prior art keywords
contact
connector
section
opening
accordance
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
EP16176242.2A
Other languages
German (de)
French (fr)
Other versions
EP3121908A1 (en
Inventor
Bernd Hagmann
Helmut Singer
Martin Littek
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.)
ITT Manufacturing Enterprises LLC
Original Assignee
ITT Manufacturing Enterprises LLC
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Publication date
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Publication of EP3121908A1 publication Critical patent/EP3121908A1/en
Application granted granted 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
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5213—Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • 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
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4538—Covers sliding or withdrawing in the direction of engagement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs

Definitions

  • the invention relates to a connector according to the preamble of claim 1.
  • a contact holder for a plug or a socket in which a protective part on a front side has a sealing cap.
  • the sealing cap includes passages for contacts.
  • the DE 1 202 374 A discloses an electrical coupling consisting of two coupling parts.
  • the live contacts are covered in uncoupled state.
  • the power supply for the formed as a sliding contact contact via lines that are connected to terminal screws and are guided by holes.
  • a sleeve, the clamping screws and the power supply lines are through a covered cylindrical sleeve arranged concentrically to the sleeve.
  • US Pat. No. 3,508,188 A relates to a connector.
  • a closure member is movably disposed in a chamber and is urged by a spring member toward a front end of the housing.
  • a contact element comprises a metallic cap and has an upper convex or conical contact surface. Within a cylindrical element, both the contact element and a spring are held by a bushing.
  • US Pat. No. 6,309,231 B1 discloses a connector assembly.
  • a spring is arranged, which is supported on a rear wall and presses a plunger in the direction of an opening.
  • the punch has a rearward shoulder which engages a front shoulder of an inner sleeve.
  • the contact pin can be advantageously encompassed on the one hand from the radially outside and on the other hand can be advantageously closed the opening, whereby a shock protection is provided. Furthermore, a dirt entry in the region of the contact bush is prevented by the closure element. Likewise, advantageously, a splash-proof or waterproof version of the connector can be realized.
  • the closure element is supported by means of a first biasing device and an abutment portion.
  • the first biasing means pushes the closure element in the direction of the opening.
  • the opening is advantageously closed when the contact pin is not inserted.
  • a second biasing device surrounds a contact portion of the contact socket at least in sections.
  • a distal portion of the closure element is formed as an abutment to the second biasing means. This advantageously ensures that the spring travel of the second biasing means can turn out low, which has an advantageous effect on the execution of the second biasing means, and so advantageous contact force for contacting the contact pin is precisely adjustable and does not decrease significantly over the life of the connector.
  • the distal portion of the closure element has an outer diameter which substantially corresponds to an outer diameter of the male contact pin and / or to an inner diameter of the opening.
  • the closure element functions advantageously both for closing the Opening as well as an abutment for the second biasing device.
  • the distal portion of the closure element in the insertion direction of an increase in diameter corresponds to the contact portion so that the contact portion opens during a mating operation.
  • the tip of the contact pin touches the socket.
  • the abrasion in the region of the pin tip is avoided and the contact pin is thus preferably contacted in a region which has a constant outer diameter.
  • the distal portion of the closure element in the plugging direction after the increase in diameter on a diameter decrease.
  • the contact socket is arranged in an insulating body.
  • the opening is made in a different sealing element of the insulating particular silicone.
  • a material matching of sealing element and closure element for closing the opening is possible.
  • as well as a water seal execution of the connector can be realized.
  • a material defining the opening and the closure element are designed to be electrically insulating. As a result, the contact and contact protection of the connector is advantageously produced.
  • FIG. 1 shows a schematic sectional view of an electrically conductive contact socket 2 of a connector.
  • the contact socket 2 is constructed substantially rotationally symmetrical to a central longitudinal axis 4.
  • the contact socket 2 is constructed for receiving a contact pin, not shown, in a receiving space 8 in a plugging direction 6. Furthermore, the contact socket 2 is designed to produce an electrically conductive connection between the contact socket 2 and the contact pin.
  • the contact socket 2 is within arranged the connector and as explained below accessible through an opening in the connector.
  • a preferably electrically non-conductive or electrically insulating closure element 10 is movably mounted within the contact socket 2.
  • the closure element 10 is supported by means of a first pretensioning device 12 on an abutment portion 14 of the contact socket 2.
  • the first biasing device 12 pushes the closure element 10 against the insertion direction 6.
  • the closure element 10 In the position shown, the closure element 10 is in the insertion direction 6 at a stop 16 of the contact socket 2, which limits the movement of the closure element 10 in the insertion direction 6.
  • the contact pin is not shown.
  • the contact socket 2 has a contact section 22.
  • the contact portion 22 comprises contact webs 24, which are separated by notches 26 from each other.
  • the contact webs 24 have a transverse to the central longitudinal axis 4 oriented outer annular groove 28 in which a second biasing member 30 is arranged in the form of an annular spring.
  • the second biasing device 30 thus surrounds the contact portion 22 at least in sections, to compress the contact portion 22 radially in the direction of the central longitudinal axis 4.
  • the contact pin when pushed in the insertion direction presses on the distal end surface 32 of the closure element 10 and thus moves the closure element 10 in the insertion direction 6.
  • the closure element is arranged against the insertion direction 6 moves, bringing a distal portion 34 with its cylindrical outer wall an inner contact surface 36 rests and thus forms an abutment to the second biasing means 30.
  • the distal portion 34 has an outer diameter 38.
  • the contact region 22 has a distal insertion bevel 40.
  • an insertion region 42 for the closure element 10 adjoins the inner contact surface 36.
  • the contact bush 2 has an annular fastening groove 44 for arrangement in an insulating body.
  • FIG. 2 shows in schematic form a sectional view of a connector 50, wherein a respective contact pin 52 for explaining the function of the contact socket 2 is shown.
  • the contact sockets 2 a and 2 b according to the embodiment in the FIG. 1 added.
  • the distal portion 34 of the closure element 10 has the outer diameter 38, which corresponds to an outer diameter 54 of the male contact pin and / or with an inner diameter of the opening 60 substantially.
  • the connector 50 has an insulating body 62, in which the contact socket 2 is arranged substantially stationary.
  • the opening 60 is closed by the closure element 10 when the contact pin 52 is not supplied. If the contact pin 52 is supplied in the insertion direction 6, then the closure element 10 is displaced in the insertion direction 6. Here, the closure element 10 releases the inner contact surfaces 36 of the contact section 22 and the inner contact surfaces 36 can embrace the contact pin 52.
  • the connector 50 comprises a sealing element 64, in which the opening 60 is executed.
  • the sealing element 64 is substantially fixedly connected to the insulating body 62, however, compared to the insulating body 62 has a higher elasticity, so as to cooperate with the closure element 10, so that the opening 60 is preferably closed waterproof.
  • the opening 60 can not be closed watertight and offers only a Berstoffschutz.
  • FIG. 3 shows a further embodiment of the contact socket 2 in a schematic sectional view.
  • the diameter increase 70 corresponds in such a way to the contact section 22 and in particular to the inner contact surfaces 36, so that the contact section 22 opens in the event of a plug-in operation of the contact pin 52.
  • This pre-opening means that the contact webs 24 move radially outwardly by means of the diameter increase 70 and thus the contacting between the inner contact surface 36 and the contact pin 52 takes place only when the tip of the contact pin 52 when inserted into the contact socket 2, the inner contact surfaces 36th already happened.
  • a portion 72 of the closure element 10 has the distal outer diameter 38 a. If the closure element 10 is in a position in which it lies with the outer diameter 38a in the region of the inner contact surfaces 36, then the inner contact surfaces 36 define an inner diameter 68. Starting from the distal outer diameter 38a, the diameter increases in a section 74 up to Diameter increase 70 too. In a section 76, the outer diameter in the insertion direction 6 decreases again to fall back in the proximal portion 78 of the distal portion 34 to the outer diameter 38 a. The proximal section 78 of the distal section 34 is adjoined by a proximal section 80 of the closure element 10.
  • FIG. 4 is analogous to FIG. 2 an embodiment of the connector 50 is shown.
  • the opening 60 in the insulating body 62 is executed.
  • the opening 60 tapers counter to the insertion direction 6, with which the sections 72 and 74 can be accommodated at least partially in the opening 60.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Description

Die Erfindung betrifft einen Steckverbinder nach dem Oberbegriff des Anspruchs 1.The invention relates to a connector according to the preamble of claim 1.

Aus der DE 10 2006 025 611 B3 ist ein Kontakthalter für einen Stecker oder eine Steckdose bekannt, bei dem ein Schutzteil an einer Frontseite eine Dichtkappe aufweist. Die Dichtkappe umfasst Durchgänge für Kontakte.From the DE 10 2006 025 611 B3 a contact holder for a plug or a socket is known in which a protective part on a front side has a sealing cap. The sealing cap includes passages for contacts.

Die DE 1 202 374 A offenbart eine aus zwei Kupplungsteilen bestehende elektrische Kupplung. Bei den beiden Kupplungsteilen sind in nicht-gekuppeltem Zustand die spannungsführenden Kontakte abgedeckt. Die Stromzuführung für den als Schleifkontakt ausgebildeten Kontakt erfolgt über Leitungen, die an Klemmschrauben angeschlossen sind und durch Bohrungen geführt sind. Eine Hülse, die Klemmschrauben und die Stromzuleitungen sind durch eine konzentrisch zur Hülse angeordnete zylindrische Haube abgedeckt.The DE 1 202 374 A discloses an electrical coupling consisting of two coupling parts. In the two coupling parts, the live contacts are covered in uncoupled state. The power supply for the formed as a sliding contact contact via lines that are connected to terminal screws and are guided by holes. A sleeve, the clamping screws and the power supply lines are through a covered cylindrical sleeve arranged concentrically to the sleeve.

US 3 508 188 A betrifft einen Steckverbinder. Ein Verschlusselement ist bewegbar in einer Kammer angeordnet und wird durch ein Federelement in Richtung eines vorderen Endes des Gehäuses gedrückt. US Pat. No. 3,508,188 A relates to a connector. A closure member is movably disposed in a chamber and is urged by a spring member toward a front end of the housing.

US 5 151 040 A offenbart einen elektrischen Steckverbinder. Ein Kontaktelement umfasst eine metallische Kappe und hat eine obere konvexe oder konische Kontaktfläche. Innerhalb eines zylindrischen Elements sind sowohl das Kontaktelement als auch eine Feder durch eine Buchse gehalten. US 5 151 040 A discloses an electrical connector. A contact element comprises a metallic cap and has an upper convex or conical contact surface. Within a cylindrical element, both the contact element and a spring are held by a bushing.

US 6 309 231 B1 offenbart eine Steckverbinderanordnung. In einem Gehäuse ist eine Feder angeordnet, welche sich an einer Rückwand abstützt und einen Stempel in Richtung einer Öffnung drückt. Der Stempel hat eine rückwärtige Schulter, welche mit einer vorderen Schulter einer inneren Hülse in Eingriff steht. US Pat. No. 6,309,231 B1 discloses a connector assembly. In a housing, a spring is arranged, which is supported on a rear wall and presses a plunger in the direction of an opening. The punch has a rearward shoulder which engages a front shoulder of an inner sleeve.

Das der Erfindung zu Grunde liegende Problem wird durch einen Steckverbinder gemäß dem Anspruch 1 gelöst.The problem underlying the invention is achieved by a connector according to claim 1.

Dadurch, dass ein Verschlusselement zum Verschließen einer Öffnung beweglich innerhalb einer elektrisch leitfähigen Kontaktbuchse gelagert ist, kann der Kontaktstift vorteilhaft zum einen von radial außen umgriffen werden und zum anderen kann vorteilhaft die Öffnung verschlossen werden, wodurch ein Berührschutz geschaffen wird. Des Weiteren wird durch das Verschlusselement ein Schmutzeintrag im Bereich der Kontaktbuchse verhindert. Ebenso kann vorteilhaft eine spritzwassergeschützte beziehungsweise wasserdichte Ausführung des Steckverbinders realisiert werden.Characterized in that a closure element for closing an opening is movably mounted within an electrically conductive contact socket, the contact pin can be advantageously encompassed on the one hand from the radially outside and on the other hand can be advantageously closed the opening, whereby a shock protection is provided. Furthermore, a dirt entry in the region of the contact bush is prevented by the closure element. Likewise, advantageously, a splash-proof or waterproof version of the connector can be realized.

In einer vorteilhaften Ausführungsform stützt sich das Verschlusselement mittels einer ersten Vorspanneinrichtung und einem Gegenlagerabschnitt ab. Die erste Vorspanneinrichtung drückt das Verschlusselement in Richtung der Öffnung. Dadurch wird vorteilhaft bei einem nicht eingesteckten Kontaktstift die Öffnung verschlossen.In an advantageous embodiment, the closure element is supported by means of a first biasing device and an abutment portion. The first biasing means pushes the closure element in the direction of the opening. As a result, the opening is advantageously closed when the contact pin is not inserted.

In einer weiteren vorteilhaften Ausführungsform umgreift eine zweite Vorspanneinrichtung einen Kontaktabschnitt der Kontaktbuchse zumindest abschnittsweise. Hierdurch wird der Kontaktabschnitt radial zusammengedrückt und so wird stets eine Vorspannkraft bereitgestellt, um die elektrische Kontaktierung mit dem Kontaktstift herzustellen.In a further advantageous embodiment, a second biasing device surrounds a contact portion of the contact socket at least in sections. As a result, the contact portion is radially compressed and so a biasing force is always provided to make the electrical contact with the contact pin.

In einer vorteilhaften Ausführungsform ist ein distaler Abschnitt des Verschlusselements als Gegenlager zu der zweiten Vorspanneinrichtung ausgebildet. Hierdurch wird vorteilhaft erreicht, dass der Federweg der zweiten Vorspanneinrichtung gering ausfallen kann, was sich vorteilhaft auf die Ausführung der zweiten Vorspanneinrichtung auswirkt, und so vorteilhaft die Kontaktkraft zur Kontaktierung des Kontaktstifts genau einstellbar ist und über die Lebensdauer des Steckverbinders nicht wesentlich abnimmt.In an advantageous embodiment, a distal portion of the closure element is formed as an abutment to the second biasing means. This advantageously ensures that the spring travel of the second biasing means can turn out low, which has an advantageous effect on the execution of the second biasing means, and so advantageous contact force for contacting the contact pin is precisely adjustable and does not decrease significantly over the life of the connector.

In einer vorteilhaften Ausführungsform weist der distale Abschnitt des Verschlusselements einen Außendurchmesser auf, der mit einem Außendurchmesser des aufzunehmenden Kontaktstifts und/oder mit einem Innendurchmesser der Öffnung im Wesentlichen korrespondiert. Damit fungiert das Verschlusselement vorteilhaft sowohl zum Verschließen der Öffnung als auch als Gegenlager für die zweite Vorspanneinrichtung.In an advantageous embodiment, the distal portion of the closure element has an outer diameter which substantially corresponds to an outer diameter of the male contact pin and / or to an inner diameter of the opening. Thus, the closure element functions advantageously both for closing the Opening as well as an abutment for the second biasing device.

In einer vorteilhaften Ausführungsform weist der distale Abschnitt des Verschlusselements in Steckrichtung einer Durchmesserzunahme auf, wobei die Durchmesserzunahme derart mit dem Kontaktabschnitt korrespondiert, so dass sich der Kontaktabschnitt bei einem Steckvorgang voröffnet.In an advantageous embodiment, the distal portion of the closure element in the insertion direction of an increase in diameter, wherein the increase in diameter corresponds to the contact portion so that the contact portion opens during a mating operation.

Dadurch kann vorteilhaft vermieden werden, dass die Spitze des Kontaktstifts die Buchse berührt. Dadurch wird der Abrieb im Bereich der Pinspitze vermieden und der Kontaktstift wird so bevorzugt in einem Bereich kontaktiert, der einen gleichbleibenden Außendurchmesser aufweist.This can advantageously be avoided that the tip of the contact pin touches the socket. As a result, the abrasion in the region of the pin tip is avoided and the contact pin is thus preferably contacted in a region which has a constant outer diameter.

In einer vorteilhaften Ausführungsform weist der distale Abschnitt des Verschlusselements in Steckrichtung nach der Durchmesserzunahme eine Durchmesserabnahme auf. Hierdurch wird vorteilhaft erreicht, dass bei mittels des Verschlusselements verschlossener Öffnung die zweite Vorspanneinrichtung in einer gegenüber der Voröffenposition entspannten Position befindet.In an advantageous embodiment, the distal portion of the closure element in the plugging direction after the increase in diameter on a diameter decrease. In this way, it is advantageously achieved that, when the opening is closed by means of the closure element, the second pretensioning device is located in a position that is relaxed relative to the forward opening position.

In einer weiteren vorteilhaften Ausführungsform ist die Kontaktbuchse in einem Isolierkörper angeordnet. Die Öffnung ist in einem von dem Isolierkörper verschiedenen Dichtelement insbesondere aus Silikon ausgeführt. Vorteilhaft ist so eine Materialabstimmung von Dichtelement und Verschlusselement zum Verschließen der Öffnung möglich. Insbesondere kann so auch eine Wasserdichtung Ausführung des Steckverbinders realisiert werden.In a further advantageous embodiment, the contact socket is arranged in an insulating body. The opening is made in a different sealing element of the insulating particular silicone. Advantageously, a material matching of sealing element and closure element for closing the opening is possible. In particular, as well as a water seal execution of the connector can be realized.

In einer vorteilhaften Ausführungsform sind ein die Öffnung definierendes Material und das Verschlusselement elektrisch isolierend ausgeführt. Hierdurch wird vorteilhaft der Kontakt- und Berührschutz des Steckverbinders hergestellt.In an advantageous embodiment, a material defining the opening and the closure element are designed to be electrically insulating. As a result, the contact and contact protection of the connector is advantageously produced.

Weitere Merkmale, Anwendungsmöglichkeiten und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen der Erfindung, die in den Figuren der Zeichnung dargestellt sind. Für funktionsäquivalente Größen und Merkmale werden in allen Figuren auch bei unterschiedlichen Ausführungsformen die gleichen Bezugszeichen verwendet.Other features, applications and advantages of the invention will become apparent from the following description of embodiments of the invention, which are illustrated in the figures of the drawing. For functionally equivalent sizes and features, the same reference numerals are used in all figures, even in different embodiments.

Nachfolgend werden beispielhafte Ausführungsformen der Erfindung unter Bezugnahme auf die Zeichnung erläutert. In der Zeichnung zeigen

  • Figuren 1
    und 3 eine schematische Schnittansicht einer Kontaktbuchse; und
  • Figuren 2
    und 4 eine schematische Schnittansicht durch einen Steckverbinder mit der Kontaktbuchse.
Hereinafter, exemplary embodiments of the invention will be explained with reference to the drawings. In the drawing show
  • FIGS. 1
    and Figure 3 is a schematic sectional view of a contact socket. and
  • Figures 2
    and Figure 4 is a schematic sectional view through a connector with the contact socket.

Figur 1 zeigt eine schematische Schnittansicht einer elektrisch leitfähigen Kontaktbuchse 2 eines Steckverbinders. Die Kontaktbuchse 2 ist im Wesentlichen rotationssymmetrisch zu einer Mittellängsachse 4 aufgebaut. Die Kontaktbuchse 2 ist zur Aufnahme eines nicht dargestellten Kontaktstifts in einen Aufnahmeraum 8 in eine Steckrichtung 6 aufgebaut. Des Weiteren ist die Kontaktbuchse 2 zum Herstellen einer elektrisch leitfähigen Verbindung zwischen der Kontaktbuchse 2 und dem Kontaktstift ausgebildet. Die Kontaktbuchse 2 ist innerhalb des Steckverbinders angeordnet und wie nachfolgend erläutert durch eine Öffnung in dem Steckverbinder zugänglich. FIG. 1 shows a schematic sectional view of an electrically conductive contact socket 2 of a connector. The contact socket 2 is constructed substantially rotationally symmetrical to a central longitudinal axis 4. The contact socket 2 is constructed for receiving a contact pin, not shown, in a receiving space 8 in a plugging direction 6. Furthermore, the contact socket 2 is designed to produce an electrically conductive connection between the contact socket 2 and the contact pin. The contact socket 2 is within arranged the connector and as explained below accessible through an opening in the connector.

Zum Verschließen der vorangehend erläuterten Öffnung ist ein bevorzugt elektrisch nicht leitendes bzw. elektrisch isolierendes Verschlusselement 10 beweglich innerhalb der Kontaktbuchse 2 gelagert. Das Verschlusselement 10 stützt sich mittels einer ersten Vorspanneinrichtung 12 an einem Gegenlagerabschnitt 14 der Kontaktbuchse 2 ab. Die erste Vorspanneinrichtung 12 drückt das Verschlusselement 10 entgegen der Steckrichtung 6. In der gezeigten Position befindet sich das Verschlusselement 10 in Steckrichtung 6 an einem Anschlag 16 der Kontaktbuchse 2, der die Bewegung des Verschlusselements 10 in Steckrichtung 6 begrenzt. Aus Übersichtsgründen ist der Kontaktstift nicht dargestellt.To close the above-explained opening, a preferably electrically non-conductive or electrically insulating closure element 10 is movably mounted within the contact socket 2. The closure element 10 is supported by means of a first pretensioning device 12 on an abutment portion 14 of the contact socket 2. The first biasing device 12 pushes the closure element 10 against the insertion direction 6. In the position shown, the closure element 10 is in the insertion direction 6 at a stop 16 of the contact socket 2, which limits the movement of the closure element 10 in the insertion direction 6. For clarity, the contact pin is not shown.

Mittels eines weiteren Anschlags 18 und einem Durchmessersprung 20 des Verschlusselements 10 wird die Bewegung des Verschlusselements 10 entgegen der Steckrichtung 6 begrenzt. Liegt der Durchmessersprung 20 an dem Anschlag 18 an, so ragt das Verschlusselement 10 abschnittsweise aus der Kontaktbuchse 2 heraus und verschließt die vorgenannte Öffnung des Steckverbinders.By means of a further stop 18 and a diameter jump 20 of the closure element 10, the movement of the closure element 10 is limited against the insertion direction 6. If the diameter jump 20 abuts against the stop 18, then the closure element 10 projects in sections out of the contact socket 2 and closes the aforesaid opening of the connector.

Entgegen der Steckrichtung 6 weist die Kontaktbuchse 2 einen Kontaktabschnitt 22 auf. Der Kontaktabschnitt 22 umfasst Kontaktstege 24, die durch Einschnitte 26 voneinander getrennt sind. Die Kontaktstege 24 weisen eine quer zur Mittellängsachse 4 orientierte äußere Ringnut 28 auf, in der ein zweites Vorspannelement 30 in Form einer Ringfeder angeordnet ist. Die zweite Vorspanneinrichtung 30 umgreift somit den Kontaktabschnitt 22 zumindest abschnittsweise, um den Kontaktabschnitt 22 radial in Richtung der Mittelängsachse 4 zusammenzudrücken.Contrary to the plug-in direction 6, the contact socket 2 has a contact section 22. The contact portion 22 comprises contact webs 24, which are separated by notches 26 from each other. The contact webs 24 have a transverse to the central longitudinal axis 4 oriented outer annular groove 28 in which a second biasing member 30 is arranged in the form of an annular spring. The second biasing device 30 thus surrounds the contact portion 22 at least in sections, to compress the contact portion 22 radially in the direction of the central longitudinal axis 4.

Der nicht dargestellte Kontaktstift drückt bei Zuführung in Steckrichtung auf die distale Abschlussfläche 32 des Verschlusselements 10 und bewegt somit das Verschlusselement 10 in Steckrichtung 6. Ohne zugeführtem Kontaktstift ist das Verschlusselement entgegen der Steckrichtung 6 bewegt angeordnet, womit ein distaler Abschnitt 34 mit seiner zylinderförmigen Außenwand an einer inneren Kontaktfläche 36 anliegt und damit ein Gegenlager zu der zweiten Vorspanneinrichtung 30 bildet. Hierzu weist der distale Abschnitt 34 einen Außendurchmesser 38 auf.The contact pin, not shown, when pushed in the insertion direction presses on the distal end surface 32 of the closure element 10 and thus moves the closure element 10 in the insertion direction 6. Without supplied contact pin, the closure element is arranged against the insertion direction 6 moves, bringing a distal portion 34 with its cylindrical outer wall an inner contact surface 36 rests and thus forms an abutment to the second biasing means 30. For this purpose, the distal portion 34 has an outer diameter 38.

Für den Kontaktstift weist der Kontaktbereich 22 eine distale Einführschräge 40 auf. In Steckrichtung 6 schließt sich an die innere Kontaktfläche 36 ein Einführbereich 42 für das Verschlusselement 10 an. Des Weiteren weist die Kontaktbuchse 2 eine ringförmige Befestigungsnut 44 zur Anordnung in einem Isolierkörper auf.For the contact pin, the contact region 22 has a distal insertion bevel 40. In the insertion direction 6, an insertion region 42 for the closure element 10 adjoins the inner contact surface 36. Furthermore, the contact bush 2 has an annular fastening groove 44 for arrangement in an insulating body.

Figur 2 zeigt in schematischer Form eine Schnittansicht eines Steckverbinders 50, wobei ein jeweiliger Kontaktstift 52 zur Erläuterung der Funktion der Kontaktbuchse 2 gezeigt ist. In dem Steckverbinder 50 sind die Kontaktbuchsen 2a und 2b gemäß der Ausführung in der Figur 1 aufgenommen. Der distale Abschnitt 34 des Verschlusselements 10 weist den Außendurchmesser 38 auf, der mit einem Außendurchmesser 54 des aufzunehmenden Kontaktstifts und/oder mit einem Innendurchmesser der Öffnung 60 im Wesentlichen korrespondiert. Der Steckverbinder 50 weist einen Isolierkörper 62 auf, in dem die Kontaktbuchse 2 im Wesentlichen feststehend angeordnet ist. FIG. 2 shows in schematic form a sectional view of a connector 50, wherein a respective contact pin 52 for explaining the function of the contact socket 2 is shown. In the connector 50, the contact sockets 2 a and 2 b according to the embodiment in the FIG. 1 added. The distal portion 34 of the closure element 10 has the outer diameter 38, which corresponds to an outer diameter 54 of the male contact pin and / or with an inner diameter of the opening 60 substantially. The connector 50 has an insulating body 62, in which the contact socket 2 is arranged substantially stationary.

Die Öffnung 60 ist bei nicht zugeführtem Kontaktstift 52 durch das Verschlusselement 10 verschlossen. Wird der Kontaktstift 52 in Steckrichtung 6 zugeführt, so verlagert sich das Verschlusselement 10 in Steckrichtung 6. Hierbei gibt das Verschlusselement 10 die inneren Kontaktflächen 36 des Kontaktabschnitts 22 frei und die inneren Kontaktflächen 36 können den Kontaktstift 52 umgreifen.The opening 60 is closed by the closure element 10 when the contact pin 52 is not supplied. If the contact pin 52 is supplied in the insertion direction 6, then the closure element 10 is displaced in the insertion direction 6. Here, the closure element 10 releases the inner contact surfaces 36 of the contact section 22 and the inner contact surfaces 36 can embrace the contact pin 52.

Des Weiteren umfasst der Steckverbinder 50 ein Dichtelement 64, in dem die Öffnung 60 ausgeführt ist. Das Dichtelement 64 ist im Wesentlichen feststehend mit dem Isolierkörper 62 verbunden, weist jedoch gegenüber dem Isolierkörper 62 eine höhere Elastizität auf, um derart mit dem Verschlusselement 10 zusammenzuwirken, so dass die Öffnung 60 bevorzugt wasserdicht verschließbar ist. Selbstverständlich kann die Öffnung 60 auch nicht wasserdicht verschließbar sein und bietet nur einen Berührschutz.Furthermore, the connector 50 comprises a sealing element 64, in which the opening 60 is executed. The sealing element 64 is substantially fixedly connected to the insulating body 62, however, compared to the insulating body 62 has a higher elasticity, so as to cooperate with the closure element 10, so that the opening 60 is preferably closed waterproof. Of course, the opening 60 can not be closed watertight and offers only a Berührschutz.

Figur 3 zeigt eine weitere Ausführungsform der Kontaktbuchse 2 in einer schematischen Schnittansicht. Im Unterschied zu Figur 1 weist der distale Abschnitt 34 des Verschlusselements 10 in Steckrichtung 6 eine Durchmesserzunahme 70 auf. Die Durchmesserzunahme 70 korrespondiert derart mit dem Kontaktabschnitt 22 und insbesondere derart mit den inneren Kontaktflächen 36, so dass sich der Kontaktabschnitt 22 bei einem Steckvorgang des Kontaktstifts 52 voröffnet. Diese Voröffnung bedeutet, dass sich die Kontaktstege 24 mittels der Durchmesserzunahme 70 radial nach außen bewegen und damit die Kontaktierung zwischen der inneren Kontaktfläche 36 und dem Kontaktstift 52 erst dann erfolgt, wenn die Spitze des Kontaktstifts 52 beim Einführen in die Kontaktbuchse 2 die inneren Kontaktflächen 36 bereits passiert hat. FIG. 3 shows a further embodiment of the contact socket 2 in a schematic sectional view. In contrast to FIG. 1 has the distal portion 34 of the closure element 10 in the insertion direction 6 an increase in diameter 70. The diameter increase 70 corresponds in such a way to the contact section 22 and in particular to the inner contact surfaces 36, so that the contact section 22 opens in the event of a plug-in operation of the contact pin 52. This pre-opening means that the contact webs 24 move radially outwardly by means of the diameter increase 70 and thus the contacting between the inner contact surface 36 and the contact pin 52 takes place only when the tip of the contact pin 52 when inserted into the contact socket 2, the inner contact surfaces 36th already happened.

Ein Abschnitt 72 des Verschlusselements 10 weist den distalen Außendurchmesser 38a auf. Befindet sich das Verschlusselement 10 in einer Position, in der es sich mit dem Außendurchmesser 38a im Bereich der inneren Kontaktflächen 36 befindet, so begrenzen die inneren Kontaktflächen 36 einen Innendurchmesser 68. Ausgehend von dem distalen Außendurchmesser 38a nimmt der Durchmesser in einem Abschnitt 74 bis zur Durchmesserzunahme 70 zu. In einem Abschnitt 76 nimmt der Außendurchmesser in Steckrichtung 6 wieder ab, um im proximalen Abschnitt 78 des distalen Abschnitts 34 auf den Außendurchmesser 38a zurückzufallen. An den proximalen Abschnitt 78 des distalen Abschnitts 34 schließt sich ein proximaler Abschnitt 80 des Verschlusselements 10 an.A portion 72 of the closure element 10 has the distal outer diameter 38 a. If the closure element 10 is in a position in which it lies with the outer diameter 38a in the region of the inner contact surfaces 36, then the inner contact surfaces 36 define an inner diameter 68. Starting from the distal outer diameter 38a, the diameter increases in a section 74 up to Diameter increase 70 too. In a section 76, the outer diameter in the insertion direction 6 decreases again to fall back in the proximal portion 78 of the distal portion 34 to the outer diameter 38 a. The proximal section 78 of the distal section 34 is adjoined by a proximal section 80 of the closure element 10.

In Figur 4 ist analog zur Figur 2 eine Ausführungsform des Steckverbinders 50 gezeigt. Im Unterschied zu Figur 2 ist die Öffnung 60 im Isolierkörper 62 ausgeführt. Die Öffnung 60 verjüngt sich entgegen der Steckrichtung 6, womit die Abschnitte 72 und 74 zumindest teilweise in der Öffnung 60 aufgenommen werden können.In FIG. 4 is analogous to FIG. 2 an embodiment of the connector 50 is shown. In contrast to FIG. 2 the opening 60 in the insulating body 62 is executed. The opening 60 tapers counter to the insertion direction 6, with which the sections 72 and 74 can be accommodated at least partially in the opening 60.

Claims (8)

  1. A connector (50) with an electrically conductive contact jack (2) to house a contact pin (52) and to make an electrical connection with the contact pin (52), in which the contact jack (2) is accessible via an opening (60) in the connector (50), in which a closing element (10) to close the opening (50) is mounted movably inside the contact jack (2), characterized in that a distal section (34) of the closing element (10) has a diameter increase (70) in the mating direction (6), and in that the contact jack (2) has a contact section (22) with contact points (24), that are separated from one another by means of recesses (26), and that the diameter increase (70) corresponds with the contact section (22) in such a way that the contact section (22) opens beforehand in a plug-in process.
  2. The connector (50) in accordance with claim 1, in which the closing element (10) is supported on a countermounting section (14) by means of a first prestressing device (12), in which the first prestressing device (12) presses the closing element (10) in the direction of the opening (60).
  3. The connector (50) in accordance with either of claims 1 or 2, in which a second prestressing device (30) encompasses the contact section (22) of the contact jack (2) at least section by section, in order to press the contact section (22) radially.
  4. The connector (50) in accordance with claim 3, in which the distal section (34) of the closing element (10) is formed as counter-mounting to the second prestressing device (30).
  5. The connector (50) in accordance with either of claims 3 or 4, in which the distal section (34) of the closing element (10) has an outside diameter (38), which corresponds fundamentally with an outside diameter (54) of the contact pin (52) to be housed and/or with an inside diameter of the opening (60).
  6. The connector (50) in accordance with claim 1, in which the distal section (34) in the plug-in direction (6) has a diameter decrease after the diameter increase (70).
  7. The connector (50) in accordance with any one of the preceding claims, in which the contact jack (2) is arranged in an isolating body (62), and in which the opening (60) is formed in a sealing element (64) differing from the isolating body (62), in particular from silicone.
  8. The connector (50) in accordance with any one of the preceding claims, in which a material defining the opening (60), in particular the isolating body (62) in accordance with claim 7 and/or the closing element(10), are designed to be electrically insulating.
EP16176242.2A 2015-07-21 2016-06-24 Electrical connector Active EP3121908B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015213734.1A DE102015213734A1 (en) 2015-07-21 2015-07-21 Connectors

Publications (2)

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EP3121908A1 EP3121908A1 (en) 2017-01-25
EP3121908B1 true EP3121908B1 (en) 2018-09-26

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EP16176242.2A Active EP3121908B1 (en) 2015-07-21 2016-06-24 Electrical connector

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US (1) US9748688B2 (en)
EP (1) EP3121908B1 (en)
DE (1) DE102015213734A1 (en)
ES (1) ES2703690T3 (en)

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Publication number Publication date
US9748688B2 (en) 2017-08-29
DE102015213734A1 (en) 2017-01-26
US20170025786A1 (en) 2017-01-26
ES2703690T3 (en) 2019-03-12
EP3121908A1 (en) 2017-01-25

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