EP2913898A1 - Electrical plug-in connector and method for its mounting - Google Patents

Electrical plug-in connector and method for its mounting Download PDF

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Publication number
EP2913898A1
EP2913898A1 EP15156538.9A EP15156538A EP2913898A1 EP 2913898 A1 EP2913898 A1 EP 2913898A1 EP 15156538 A EP15156538 A EP 15156538A EP 2913898 A1 EP2913898 A1 EP 2913898A1
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EP
European Patent Office
Prior art keywords
housing
cable
latching
contact unit
housing interior
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15156538.9A
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German (de)
French (fr)
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EP2913898B1 (en
Inventor
Bernd Böttle
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.)
Bowa Electronic GmbH and Co KG
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Bowa Electronic GmbH and Co KG
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Publication of EP2913898A1 publication Critical patent/EP2913898A1/en
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205Sealing means between cable and housing, e.g. grommet
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405Securing in non-demountable manner, e.g. moulding, riveting
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/502Bases; Cases composed of different pieces
    • H01R13/506Bases; Cases composed of different pieces assembled by snap action of the parts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00Connectors or connections adapted for particular applications
    • H01R2201/26Connectors or connections adapted for particular applications for vehicles

Definitions

  • the invention further relates to a method for mounting such a connector.
  • a housing serves for external protection and defines a mechanical interface with a corresponding plug-in element.
  • the required for the electrical function of the connector electrical contact unit in turn consists of two subunits, namely a Polrochabêt, which may be formed in particular as a stamped and folded sheet metal part, and a cable which is connected to the Polrochabsacrificing both electrically and mechanically.
  • the connection between the cable and Polrochabites is typically done by crimping, but can also be produced by soldering, welding or otherwise.
  • a latching body is provided, which serves as an adapter between the contact unit and housing.
  • the locking body is provided on its outside with locking means which are arranged in corresponding locking means on the inside of the axially continuous housing interior.
  • the interior of the locking body itself is also formed as an axially continuous cavity whose inner wall has latching means which interact with corresponding latching means of the contact unit. The fixation of the contact unit in the housing thus takes place via a two-stage latching connection: the contact unit is latched in the latching body; the locking body is locked in the housing.
  • each locking connection is necessarily subject to play, so that the overall play of the pole pin to the housing is large and the precision of the connector correspondingly low.
  • an axial portion of the contact unit for the arrangement of the corresponding locking means is required for the latching connection between the contact unit and the latching body.
  • the known connector therefore builds accordingly long.
  • the low tightness against longitudinal water must be considered disadvantageous.
  • Each of the two locking means interfaces leads to the formation of axially extending gaps, which develop a capillary action, with which penetrating water is passed on in the axial direction and can cause damage in a downstream electronics.
  • a connector is known in which between the connector housing and insulation, an elastic spout is arranged to avoid gaps in which due to capillary moisture could penetrate.
  • a connector is known in which the conductor channel is produced through the insulation with the aid of two casting cores, which partially overlap.
  • the cores are placed inside the mold and can be removed after injection of the casting material in axially opposite directions.
  • the casting cores are designed such that there are corresponding latching means at both ends of the conductor channel.
  • a connector in which both connector halves are surrounded by an outer shell, wherein the second connector half and the outer shell are equipped with corresponding locking means and all three are formed so that upon engagement of the locking means between the second connector half and the outer shell, the first and the second connector half are firmly connected.
  • a connector is known in which a connector block is provided with solid side walls with a resilient locking tongue and in addition with an externally accessible retaining element.
  • the basic idea of the present invention is to optimize the connection between the contact unit and the latching body with regard to mechanical precision, axial space requirement and longitudinal water-tightness. This is achieved by an immediate encapsulation of the contact unit to form a precisely shaped Umspritzungs emotionss, so that the contact unit is firmly embedded in Umspritzungsterrorism and the Umspritzungs redesign can be locked in a basically known manner with the housing. This eliminates a locking interface, whereby the resulting total game between Polrich and housing is reduced accordingly. Also, the fixed embedding of the contact unit in the injection-molded body significantly reduces the gap acting as a capillary. Especially Advantageous choice of material, as explained below, a gap formation between contact unit and Umspritzungsêt completely prevented.
  • the cable has an electrically conductive sheath sheathed with an electrically insulating sheath.
  • sheathed cable is provided in a preferred embodiment of the invention that the jacket is materially connected to the locking body. As provided in a preferred development, this material bond can be realized, in particular in the context of the encapsulation process, when the jacket and the ratchet body have the same material consistency in the material bond region.
  • the jacket and the plastic material of the extrusion-coated body have similar or identical melting points, so that the jacket is melted on the surface during the extrusion-coating process and combines with the extrusion-coating material.
  • material uniformity in the present context does not necessarily mean that the jacket and encapsulation material must necessarily be identical.
  • the uniformity of the material can also be subsequently produced by, for example, in the case of the above-described case of the melting of the mantle surface, a boundary region consisting of a material mixture which can not be unambiguously assigned to either the mantle or the overmold body. In this boundary region, which can be assigned to both elements, both elements are material-uniform in the sense of the local description.
  • the material integrity can also be provoked by chemical agents, which are applied to the cable sheath, for example, immediately before the encapsulation process.
  • the elastomeric sleeve Due to the inherent elasticity of the elastomeric sleeve, it rests sealingly against the cable (in the case that the sleeve does not surround only the cable but the cable and coupling region of the pole section, the elastomeric sleeve seals against these two).
  • the porosity of the elastomeric sleeve leads to an open outer surface into which the encapsulation material can penetrate and thus form a positive connection.
  • a closed pore porous material should be chosen, i. a material in which the pores are not interconnected so that capillary channels form over longer distances. This would be contrary to the desired sealing effect against longitudinal water.
  • a closed-pore porous material already offers a good seal due to the above-described positive connection between encapsulation material and sleeve, in combination with the elasticity of the sleeve material, without opening up an alternative longitudinal water path via its pores.
  • first and second locking means For the design of the interacting first and second locking means no fundamental restriction can be seen. However, it has proven particularly advantageous if the first latching means have radially inwardly directed projections which engage in corresponding recesses in the surface of the latching body.
  • the locking body can thereby obtain a very simple geometric outer shape, which is particularly advantageous in the context of the encapsulation process in terms of the cost of tool making.
  • the first locking means have two axially aligned, with their free ends to the front end of the housing facing arms, each with a radially inwardly directed nose, the nose having a front, flatter and a rear, steeper slope.
  • Such a configuration requires insertion the locking body during assembly from the front end of the housing forth. This is the typical mounting direction for the present invention, as opposed to the prior art, as inserting from behind into the housing would require a larger housing interior.
  • the cable is gripped in a lying between the first locking means and the rear end of the housing sealing region of a tightly against him lamellar seal, which bears radially on the outside tight against the wall of the housing interior.
  • the wall of the housing interior for axially delimiting the sealing region immediately before and / or behind this has a radially inwardly projecting collar on which the lamellar seal axially is applied.
  • the lamellar seal is thus assigned its own chamber in the housing interior, in which it can be locked due to their usual inherent elasticity.
  • FIG. 1 shows a first method step for mounting a connector 10 according to the invention (as in FIG. 4 shown), wherein a lamellar seal 12 is pushed onto a cable 14 with a free end 141.
  • the crank comprises an electrically conductive core 143 and an insulating jacket 142.
  • the lamellar seal 12 has three annular disk-like lamellae 121, which are connected to each other with axially compressible webs 122.
  • the central opening 123 of the lamellae 121 and the webs 122 is dimensioned such that it engages around the cable 14 in a force-fitting manner, the adhesion being ensured by the shape and material elasticity of the lamellar seal 12. As a result, a longitudinal water-tightness between the plate seal 12 and cable 14 is achieved.
  • FIG. 2 shows a second method step, wherein the according to FIG. 1 prefabricated cable 14 is provided at its free end 141 with a Polrichabterrorism 16.
  • the Polrichabêt 16 is formed as a stamped and folded sheet metal part and has the actual pole pin 161 and a coupling region 162.
  • the coupling region 162 comprises two crimping points 163, 164. With the marginal crimping point 163 it is crimped with the sheath 142 of the cable 14; with the other crimping point 164 it is crimped with the stripped soul 143 of the cable 14 here. In this way, a mechanical and simultaneously electrical connection between the cable 14 and the Polrichab mustard 16, so that both together form the contact unit 18 is formed.
  • FIG. 3 shows the result of a third process step in which the entire coupling region 162 of the Polvolabitess 16 is encapsulated in a Umspritzungsrea with a locking body 20.
  • the latching body 20 consists of a solid plastic material, which embeds the coupling region 162 of the Polvolabitess 16 fixed. He has a comparatively simple outer structure, namely the shape of a two-sided flattened cylinder 201 with an approximately square face plate 202. The pole pin 161 protrudes from the face plate 202 out. In the region of the flattened sides of the cylinder body 201, a detent recess 203 is arranged in each case, whose significance will be discussed in more detail below.
  • FIG. 4 shows the final assembly step, namely the insertion of the latching body 20 provided with the contact unit 18 in a housing 22.
  • the housing 22 has an axially continuous, channel-like housing interior 221, in which the contact unit 18 is inserted according to the Montageeursspfeil 24.
  • the contact unit 18 is inserted so deeply until the latching lugs 223 of two latching arms 222, which extend in the housing interior 221 in the direction of its front end, engage in the latching recesses 203 and fix the contact unit 18 in the housing 2.
  • the lamellar seal 12 comes to lie in the area behind the latching arms 222 and lies with the outer peripheries of their fins 121 sealingly against the wall of the housing interior 221.
  • FIG. 5 shows a corresponding connector in the final assembly position.
  • the assembly order as in the FIGS. 1 to 4 shown only when the cables 14 are single-stranded and each have two free ends, so that they can be threaded through the housing cavity 221 even after creation of the locking body 20. In many cases, however, this is not the case, for example, when two pole pins 161 of a connector 10 are connected to the two ends of a looped cable 14 to a loop. In this case, it is necessary that the housing 22 is already threaded onto the cable 14 before the creation of the detent body 20, preferably even before the assembly of the contact unit 18 according to FIG FIG. 2 , Particularly preferably even before the sliding of the plate seal 12 according to FIG. 1 ,
  • FIG. 6 shows an alternative embodiment of a detent body 20 '.
  • two according to FIG. 2 prefabricated contact units 18 together with a locking body 20 'overmolded.
  • the two cylinder body 201 ' are integrally connected to a connecting them, rectangular face plate 202'.
  • each of the cylinder bodies 201 ' has a latching recess 203'; It would also be conceivable to have a single, common recess in the area of the end plate 202 '.
  • the louver seals 12 for each cable 14 are configured as described in connection with FIG FIG. 1 described.
  • FIG. 7 shows an alternative embodiment of a lamellar seal 12 ', in which the cable receptacles are not concentric with the outer diameter of the lamella 121' and the webs 122 'are formed. Instead, the lamellar seal 12 'has two parallel channels 124'.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

Die Erfindung bezieht sich auf einen elektrischen Steckverbinder, umfassend - ein Gehäuse (22) mit einem vorderen Ende und einem hinteren Ende, die über einen beidseitig offenen Gehäuseinnenraum (221), dessen Wandung mit ersten Rastmitteln (222, 223) ausgestattet ist, miteinander verbunden sind, - einen im Gehäuseinnenraum (221) angeordneten Rastkörper (20), dessen Wandung mit zweiten Rastmitteln (203) ausgestattet ist, welche derart mit den ersten Rastmitteln (222, 223) wechselwirken, dass der Rastkörper (20) im Gehäuseinnenraum (221) axial fixiert ist, und - eine in dem Rastkörper (20) fixierte und diesen axial durchsetzende Kontakteinheit (18), umfassend einen zum vorderen Ende des Gehäuses (22) weisenden, steifen Polstiftabschnitt (16) und ein elektrisch und mechanisch mit diesem verbundenes, das hintere Ende des Gehäuses (22) durchsetzendes Kabel (14). Die Erfindung zeichnet sich dadurch aus, dass der Rastkörper (20) als ein die Kontakteinheit (18) im Verbindungsbereich des Kabels (14) mit dem Polstiftabschnitt (16) fest einbettender Umspritzungskörper ausgebildet ist.The invention relates to an electrical connector comprising a housing (22) having a front end and a rear end, which are connected to one another via a housing interior (221) which is open on both sides and whose wall is provided with first latching means (222, 223), - One in the housing interior (221) arranged latching body (20) whose wall is equipped with second locking means (203) which interact with the first latching means (222, 223) such that the latching body (20) axially fixed in the housing interior (221) is and - One in the locking body (20) fixed and axially passing through this contact unit (18) comprising a front end of the housing (22) facing, rigid Polstiftabschnitt (16) and an electrically and mechanically connected thereto, the rear end of the housing ( 22) passing through cable (14). The invention is characterized in that the latching body (20) is formed as an embossing body firmly embedding the contact unit (18) in the connection region of the cable (14) with the pole pin section (16).

Description

Gebiet der ErfindungField of the invention

Die Erfindung bezieht sich auf einen elektrischer Steckverbinder, umfassend

  • ein Gehäuse mit einem vorderen Ende und einem hinteren Ende, die über einen beidseitig offenen Gehäuseinnenraum, dessen Wandung mit ersten Rastmitteln ausgestattet ist, miteinander verbunden sind,
  • einen im Gehäuseinnenraum angeordneten Rastkörper, dessen Wandung mit zweiten Rastmitteln ausgestattet ist, welche derart mit den ersten Rastmitteln wechselwirken, dass der Rastkörper im Gehäuseinnenraum axial fixiert ist, und
  • eine in dem Rastkörper fixierte und diesen axial durchsetzende Kontakteinheit, umfassend einen zum vorderen Ende des Gehäuses weisenden, steifen Polstiftabschnitt und ein elektrisch und mechanisch mit diesem verbundenes, das hintere Ende des Gehäuses durchsetzendes Kabel.
The invention relates to an electrical connector comprising
  • a housing with a front end and a rear end, which are connected to each other via a housing interior open on both sides, the wall of which is equipped with first latching means,
  • a latching body arranged in the housing interior, the wall of which is equipped with second latching means which interact with the first latching means such that the latching body is axially fixed in the housing interior, and
  • a fixed in the locking body and axially passing through this contact unit, comprising a pointing to the front end of the housing, rigid Polstiftabschnitt and an electrically and mechanically connected thereto, the rear end of the housing by passing cable.

Die Erfindung bezieht sich weiter auf ein Verfahren zur Montage eines derartigen Steckverbinders.The invention further relates to a method for mounting such a connector.

Stand der TechnikState of the art

Gattungsgemäße Steckverbinder sind bekannt aus der DE 197 00 048 B4 .Generic connectors are known from the DE 197 00 048 B4 ,

Elektrische Steckverbinder, insbesondere im Kraftfahrzeugbereich, sind erheblichen Beanspruchungen, beispielsweise durch Vibrationen, Spritzwasser, Temperaturschwankungen, etc. ausgesetzt. Entsprechend hochwertig müssen sie gefertigt sein. Andererseits erfordert die große Menge benötigter Steckverbinder allein im Kraftfahrzeugbereich eine massentaugliche und billige Fertigung. Dabei geht der Montageaufwand wesentlich in die Kosten eines Steckverbinders ein.Electrical connectors, especially in the automotive sector, are exposed to considerable stresses, for example due to vibrations, spray water, temperature fluctuations, etc. They must be made of high quality. On the other hand, requires the large amount of required connectors alone in the Motor vehicle area a mass suitable and cheap production. The installation effort is essential in the cost of a connector.

Die oben genannte, gattungsbildende Druckschrift offenbart einen im Wesentlichen dreiteiligen Steckverbinder. Ein Gehäuse dient dem äußeren Schutz und definiert eine mechanische Schnittstelle mit einem korrespondierenden Steckelement. Die für die elektrische Funktion des Steckverbinders erforderliche elektrische Kontakteinheit besteht ihrerseits aus zwei Untereinheiten, nämlich einem Polstiftabschnitt, der insbesondere als ein gestanztes und gefaltetes Blechteil ausgebildet sein kann, und einem Kabel, welches mit dem Polstiftabschnitt sowohl elektrisch als auch mechanisch verbunden ist. Die Verbindung zwischen Kabel und Polstiftabschnitt erfolgt typischerweise durch Vercrimpen, kann aber auch durch Löten, Schweißen oder auf andere Weise erzeugt werden. Zur Fixierung der Kontakteinheit im Gehäuse ist ein Rastkörper vorgesehen, der gleichsam als Adapter zwischen Kontakteinheit und Gehäuse dient. Der Rastkörper ist an seiner Außenseite mit Rastmitteln versehen, die in korrespondierende Rastmittel an der Innenseite des axial durchgängigen Gehäuseinnenraums angeordnet sind. Das Innere des Rastkörpers selbst ist ebenfalls als ein axial durchgängiger Hohlraum ausgebildet, dessen Innenwandung Rastmittel aufweist, die mit korrespondierenden Rastmitteln der Kontakteinheit wechselwirken. Die Fixierung der Kontakteinheit im Gehäuse erfolgt somit über eine zweistufige Rastverbindung: die Kontakteinheit ist im Rastkörper verrastet; der Rastkörper ist im Gehäuse verrastet.The above-mentioned generic document discloses a substantially three-piece connector. A housing serves for external protection and defines a mechanical interface with a corresponding plug-in element. The required for the electrical function of the connector electrical contact unit in turn consists of two subunits, namely a Polstiftabschnitt, which may be formed in particular as a stamped and folded sheet metal part, and a cable which is connected to the Polstiftabschnitt both electrically and mechanically. The connection between the cable and Polstiftabschnitt is typically done by crimping, but can also be produced by soldering, welding or otherwise. For fixing the contact unit in the housing, a latching body is provided, which serves as an adapter between the contact unit and housing. The locking body is provided on its outside with locking means which are arranged in corresponding locking means on the inside of the axially continuous housing interior. The interior of the locking body itself is also formed as an axially continuous cavity whose inner wall has latching means which interact with corresponding latching means of the contact unit. The fixation of the contact unit in the housing thus takes place via a two-stage latching connection: the contact unit is latched in the latching body; the locking body is locked in the housing.

Dieses Konzept wirft mehrere Nachteile auf. Zum einen ist jede Rastverbindung notwendig spielbehaftet, sodass das Gesamtspiel des Polstiftes zum Gehäuse groß ist und die Präzision der Steckverbindung entsprechend gering. Weiter wird für die Rastverbindung zwischen der Kontakteinheit und dem Rastkörper ein axialer Abschnitt der Kontakteinheit zur Anordnung der entsprechenden Rastmittel benötigt. Der bekannte Steckverbinder baut daher entsprechend lang. Letztlich muss auch die geringe Dichtigkeit gegen Längswasser als nachteilig angesehen werden. Jede der beiden Rastmittel-Schnittstellen führt zur Ausbildung axial erstreckter Spalte, die eine Kapillarwirkung entfalten, mit welcher eindringendes Wasser in Axialrichtung weitergeleitet wird und in einer nachgeordneten Elektronik Schäden anrichten kann.This concept raises several disadvantages. On the one hand, each locking connection is necessarily subject to play, so that the overall play of the pole pin to the housing is large and the precision of the connector correspondingly low. Next, an axial portion of the contact unit for the arrangement of the corresponding locking means is required for the latching connection between the contact unit and the latching body. The known connector therefore builds accordingly long. Ultimately, the low tightness against longitudinal water must be considered disadvantageous. Each of the two locking means interfaces leads to the formation of axially extending gaps, which develop a capillary action, with which penetrating water is passed on in the axial direction and can cause damage in a downstream electronics.

Aus der DE 20 2006 012 240 U1 ist ein Steckverbinder bekannt, bei dem zwischen Steckverbindergehäuse und Isolierung eine elastische Tülle angeordnet ist, um Spalte zu vermeiden, in die aufgrund von Kapillarwirkung Feuchtigkeit eindringen könnte.From the DE 20 2006 012 240 U1 a connector is known in which between the connector housing and insulation, an elastic spout is arranged to avoid gaps in which due to capillary moisture could penetrate.

Aus der CA 2 576 626 A1 ist ein Steckverbinder bekannt, bei dem der Leiterkanal durch die Isolierung hindurch mit Hilfe zweier Gusskerne, die sich teilweise überlappen, erzeugt wird. Die Gusskerne werden innerhalb der Gussform platziert und lassen sich nach dem Einspritzen des Gussmaterials in axial entgegengesetzte Richtungen entfernen . Dabei sind die Gusskerne derart ausgestaltet, dass sich an beiden Enden des Leiterkanals korrespondierende Rastmittel befinden.From the CA 2 576 626 A1 a connector is known in which the conductor channel is produced through the insulation with the aid of two casting cores, which partially overlap. The cores are placed inside the mold and can be removed after injection of the casting material in axially opposite directions. In this case, the casting cores are designed such that there are corresponding latching means at both ends of the conductor channel.

Aus der US 2003 / 0 224 660 A1 ist ein Steckverbinder bekannt, bei dem beide Steckverbinderhälften von einer Außenhülle umgeben sind, wobei die zweite Steckverbindungshälfte und die Außenhülle mit korrespondierenden Rastmitteln ausgestattet sind und alle drei so ausgebildet sind, dass beim Einrasten der Rastmittel zwischen der zweiten Steckverbindungshälfte und der Außenhülle die erste und die zweite Steckverbindungshälfte fest verbunden werden.From the US 2003/0 224 660 A1 a connector is known in which both connector halves are surrounded by an outer shell, wherein the second connector half and the outer shell are equipped with corresponding locking means and all three are formed so that upon engagement of the locking means between the second connector half and the outer shell, the first and the second connector half are firmly connected.

Aus der DE 197 00 048 B4 ist ein Steckverbinder bekannt, bei dem ein Verbinderblock mit massiven Seitenwänden mit einer federnd nachgiebigen Verriegelungszunge und zusätzlich mit einem von außen zugänglichen Festhalteelement ausgestattet ist.From the DE 197 00 048 B4 a connector is known in which a connector block is provided with solid side walls with a resilient locking tongue and in addition with an externally accessible retaining element.

Aufgabenstellungtask

Es ist die Aufgabe der vorliegenden Erfindung, einen gattungsgemäßen Steckverbinder derart weiterzubilden, dass eine verbesserte mechanische Präzision, geringerer Axialbauraumbedarf und eine verbesserte Längswasserdichtigkeit erreicht werden.It is the object of the present invention to further develop a generic connector such that an improved mechanical precision, reduced Axialbauraumbedarf and improved longitudinal water tightness can be achieved.

Darlegung der ErfindungPresentation of the invention

Diese Aufgabe wird in Verbindung mit den Merkmalen des Oberbegriffs von Anspruch 1 dadurch gelöst, dass der Rastkörper als ein die Kontakteinheit im Verbindungsbereich des Kabels mit dem Polstiftabschnitt fest einbettender Umspritzungskörper ausgebildet ist.This object is achieved in conjunction with the features of the preamble of claim 1, characterized in that the detent body is formed as a contact body in the connecting region of the cable with the Polstiftabschnitt firmly embedding Umspritzungskörper.

Ein weiterer Gegenstand der Erfindung ist ein Verfahren zur Montage eines elektrischen Steckverbinders, umfassend die Schritte:

  • Bereitstellen eines Gehäuses mit einem vorderen Ende und einem hinteren Ende, die über einen beidseitig offenen Gehäuseinnenraum, dessen Wandung mit ersten Rastmitteln ausgestattet ist, miteinander verbunden sind,
  • Bereitstellen eines wenigstens ein freies Ende aufweisenden, elektrisch leitfähigen Kabels,
  • Bereitstellen eines steifen Polstiftabschnitts mit wenigstens einem Polstift und einem einstückig mit diesem ausgebildeten Koppelbereich,
  • axiales Durchführen des Kabels durch den Gehäuseinnenraum, sodass dessen freies Ende über das vordere Ende des Gehäuses hinausragt,
  • mechanisches Verbinden, unter Ausbildung einer elektrischen Verbindung, des freien Endes des Kabels mit dem Koppelbereich des Polstiftabschnitts zu einer Kontakteinheit,
  • Umspritzen der Kontakteinheit im Bereich des Koppelbereichs des Polstiftabschnitts mit einem spritzbaren, elektrisch isolierenden Kunststoff unter Ausbildung eines zu den ersten Rastmitteln korrespondierende zweite Rastmittel aufweisenden Rastkörpers und
  • Einschieben des Rastkörpers samt der von ihm eingebetteten Kontakteinheit in das Gehäuse bis zur axialen Fixierung des Rastkörpers im Gehäuseinnenraum durch Wechselwirkung der ersten Rastmittel mit den zweiten Rastmitteln.
Another object of the invention is a method for mounting an electrical connector, comprising the steps:
  • Providing a housing having a front end and a rear end, which are connected to one another via a housing interior open on both sides, the wall of which is equipped with first latching means,
  • Providing an electrically conductive cable having at least one free end,
  • Providing a rigid pole pin section with at least one pole pin and an integrally formed with this coupling region,
  • axial passage of the cable through the housing interior, so that its free end protrudes beyond the front end of the housing,
  • mechanically connecting, forming an electrical connection, the free end of the cable with the coupling region of the pole pin section to a contact unit,
  • Injection of the contact unit in the region of the coupling region of the Polstiftabschnitts with a sprayable, electrically insulating plastic to form a corresponding to the first locking means second locking means detent body and
  • Insertion of the detent body together with the contact unit embedded by it in the housing until the axial fixation of the detent body in the housing interior by interaction of the first detent means with the second detent means.

Bevorzugte Ausführungsformen der Erfindung sind Gegenstand der abhängigen Ansprüche.Preferred embodiments of the invention are the subject of the dependent claims.

Der Grundgedanke der vorliegenden Erfindung liegt darin, die Verbindung zwischen der Kontakteinheit und dem Rastkörper im Hinblick auf mechanische Präzision, axialen Bauraumbedarf und Längswasserdichtigkeit zu optimieren. Dies wird durch eine unmittelbare Umspritzung der Kontakteinheit unter Ausbildung eines präzise geformten Umspritzungskörpers erreicht, sodass die Kontakteinheit fest im Umspritzungskörper eingebettet ist und der Umspritzungskörper in im Grunde bekannter Weise mit dem Gehäuse verrastet werden kann. Hierdurch fällt eine Rastmittel-Schnittstelle weg, wodurch das resultierende Gesamtspiel zwischen Polstift und Gehäuse entsprechend reduziert wird. Auch verringert die feste Einbettung der Kontakteinheit im Umspritzungskörper den als Kapillare wirkenden Spalt erheblich. Bei besonders vorteilhafter Materialwahl wird, wie weiter unten noch erläutert, eine Spaltbildung zwischen Kontakteinheit und Umspritzungskörper vollständig verhindert. Schließlich sorgt auch die feste Einbettung der Kontakteinheit im Umspritzungskörper dafür, dass bereits geringe Vorsprünge in der Oberfläche der Kontakteinheit zu einer formschlüssigen Verriegelung der Kontakteinheit im Umspritzungskörper in Axialrichtung führen. Auf gesonderte Rastmittel kann damit verzichtet werden, sodass der hierfür im Stand der Technik benötigte axiale Bauraum eingespart werden kann.The basic idea of the present invention is to optimize the connection between the contact unit and the latching body with regard to mechanical precision, axial space requirement and longitudinal water-tightness. This is achieved by an immediate encapsulation of the contact unit to form a precisely shaped Umspritzungskörpers, so that the contact unit is firmly embedded in Umspritzungskörper and the Umspritzungskörper can be locked in a basically known manner with the housing. This eliminates a locking interface, whereby the resulting total game between Polstift and housing is reduced accordingly. Also, the fixed embedding of the contact unit in the injection-molded body significantly reduces the gap acting as a capillary. Especially Advantageous choice of material, as explained below, a gap formation between contact unit and Umspritzungskörper completely prevented. Finally, the firm embedding of the contact unit in Umspritzungskörper also ensures that even small projections in the surface of the contact unit lead to a positive locking of the contact unit in Umspritzungskörper in the axial direction. On separate locking means can be dispensed with, so that the space required for this purpose in the prior art axial space can be saved.

Typischerweise weist das Kabel eine mit einem elektrisch isolierenden Mantel ummantelte elektrische leitende Seele auf. Die Verwendung nackter, d.h. nicht isolierter Kabel, ist zwar auch denkbar, wird in der Praxis jedoch nur geringe Anwendung finden. Bei Verwendung eines typischen, ummantelten Kabels ist bei einer bevorzugten Ausführungsform der Erfindung vorgesehen, dass der Mantel stoffschlüssig mit dem Rastkörper verbunden ist. Diese Stoffschlüssigkeit lässt sich, wie bei einer bevorzugten Weiterbildung vorgesehen, insbesondere im Rahmen des Umspritzungsprozesses realisieren, wenn der Mantel und der Rastkörper im Stoffschlussbereich materialeinheitlich ausgebildet sind. Beispielsweise kann vorgesehen sein, dass der Mantel und das Kunststoffmaterial des Umspritzungskörpers ähnliche oder gleiche Schmelzpunkte haben, sodass der Mantel beim Umspritzungsprozess an seiner Oberfläche angeschmolzen wird und sich mit dem Umspritzungsmaterial verbindet. Der Begriff der Materialeinheitlichkeit bedeutet im vorliegenden Zusammenhang nicht zwingend das Mantel- und Umspritzungsmaterial notwendig identisch sein müssen. Die Materialeinheitlichkeit kann auch nachträglich hergestellt werden, indem, wie zum Beispiel im oben geschilderten Fall des Anschmelzens der Manteloberfläche, ein Grenzbereich aus einer Materialmischung entsteht, der weder dem Mantel noch dem Umspritzungskörper eindeutig zuordenbar ist. In diesem, beiden Elementen zuordenbaren, Grenzbereich sind beide Elemente materialeinheitlich im Sinne der hiesigen Beschreibung.Typically, the cable has an electrically conductive sheath sheathed with an electrically insulating sheath. The use of naked, i. Although not insulated cable is also conceivable, in practice, however, will find little application. When using a typical, sheathed cable is provided in a preferred embodiment of the invention that the jacket is materially connected to the locking body. As provided in a preferred development, this material bond can be realized, in particular in the context of the encapsulation process, when the jacket and the ratchet body have the same material consistency in the material bond region. For example, it can be provided that the jacket and the plastic material of the extrusion-coated body have similar or identical melting points, so that the jacket is melted on the surface during the extrusion-coating process and combines with the extrusion-coating material. The term material uniformity in the present context does not necessarily mean that the jacket and encapsulation material must necessarily be identical. The uniformity of the material can also be subsequently produced by, for example, in the case of the above-described case of the melting of the mantle surface, a boundary region consisting of a material mixture which can not be unambiguously assigned to either the mantle or the overmold body. In this boundary region, which can be assigned to both elements, both elements are material-uniform in the sense of the local description.

Alternativ zur oben erläuterten thermischen Verbindung kann die Stoffschlüssigkeit auch durch chemische Agenzien provoziert werden, die beispielsweise unmittelbar vor dem Umspritzungsprozess auf den Kabelmantel aufgetragen werden.As an alternative to the above-described thermal connection, the material integrity can also be provoked by chemical agents, which are applied to the cable sheath, for example, immediately before the encapsulation process.

Die Ausbildung einer solchen Stoffschlüssigkeit erfordert, wie der Fachmann erkennen wird, stets eine im Einzelfall geeignete Materialkombination. Es gibt jedoch anwendungstechnisch sehr relevante Fälle, in denen keine derartige Materialkombination von Mantel und Umspritzungskörper gefunden werden kann. Beispielsweise werden häufig Kabelmäntel aus PTFE oder mit PTFE-Beschichtung verwendet. PTFE ist bekanntlich thermisch sehr stabil und chemisch inert. Insbesondere zur Abdeckung solcher oder ähnlicher Fälle kann bei einer Weiterbildung der Erfindung vorgesehen sein, dass das Kabel in seinem Kontaktbereich zu dem Rastkörper eine geschlossenporig poröse Elastomer-Manschette trägt. Durch die Eigenelastizität der Elastomer-Manschette liegt diese dichtend am Kabel an (im Fall, dass die Manschette nicht allein das Kabel, sondern Kabel und Koppelbereich des Polabschnitts umgreift, liegt die Elastomer-Manschette an diesen beiden dichtend an). Die Porosität der Elastomer-Manschette führt zu einer offenen äußeren Oberfläche, in die das Umspritzungsmaterial eindringen und so eine formschlüssige Verbindung ausbilden kann. Allerdings sollte ein geschlossenporig poröses Material gewählt werden, d.h. ein Material, in dem die Poren untereinander nicht so verbunden sind, dass sich über längere Strecken Kapillarkanäle bilden. Diese würden nämlich der angestrebten Dichtwirkung gegen Längswasser entgegenstehen. Ein geschlossenporig poröses Material bietet hingegen aufgrund der oben erläuterten formschlüssigen Verbindung zwischen Umspritzungsmaterial und Manschette in Kombination mit der Elastizität des Manschetten-Materials bereits eine gute Dichtung, ohne über seine Poren einen alternativen Längswasserweg zu eröffnen.The formation of such material integrity requires, as the skilled person will recognize, always suitable in individual cases combination of materials. However, there are application-relevant cases in which no such combination of materials of jacket and Umspritzungskörper can be found. For example, cable sheaths made of PTFE or PTFE coating are often used. PTFE is known to be thermally very stable and chemically inert. In particular, to cover such or similar cases may be provided in a development of the invention that the cable carries in its contact region to the detent body a closed-pored porous elastomeric sleeve. Due to the inherent elasticity of the elastomeric sleeve, it rests sealingly against the cable (in the case that the sleeve does not surround only the cable but the cable and coupling region of the pole section, the elastomeric sleeve seals against these two). The porosity of the elastomeric sleeve leads to an open outer surface into which the encapsulation material can penetrate and thus form a positive connection. However, a closed pore porous material should be chosen, i. a material in which the pores are not interconnected so that capillary channels form over longer distances. This would be contrary to the desired sealing effect against longitudinal water. By contrast, a closed-pore porous material already offers a good seal due to the above-described positive connection between encapsulation material and sleeve, in combination with the elasticity of the sleeve material, without opening up an alternative longitudinal water path via its pores.

Für die Ausgestaltung der miteinander wechselwirkenden ersten und zweiten Rastmittel ist keine grundsätzliche Beschränkung erkennbar. Als besonders vorteilhaft hat es sich jedoch erwiesen, wenn die ersten Rastmittel nach radial innen gerichtete Vorsprünge aufweisen, die in korrespondierende Ausnehmungen in der Oberfläche des Rastkörpers eingreifen. Der Rastkörper kann dadurch eine sehr einfache geometrische Außenform erhalten, was im Rahmen des Umspritzungsprozesses hinsichtlich der Kosten des Werkzeugbaus besonders vorteilhaft ist.For the design of the interacting first and second locking means no fundamental restriction can be seen. However, it has proven particularly advantageous if the first latching means have radially inwardly directed projections which engage in corresponding recesses in the surface of the latching body. The locking body can thereby obtain a very simple geometric outer shape, which is particularly advantageous in the context of the encapsulation process in terms of the cost of tool making.

Konkret empfiehlt es sich, wenn die ersten Rastmittel zwei axial ausgerichtete, mit ihren freien Enden zum vorderen Ende des Gehäuses weisende Arme mit je einer nach radial innen gerichteten Nase aufweisen, wobei die Nase eine vordere, flachere und eine hintere, steilere Schräge aufweist. Eine derartige Ausgestaltung erfordert ein Einschieben des Rastkörpers bei der Montage vom vorderen Ende des Gehäuses her. Dies ist die für die vorliegende Erfindung - im Gegensatz zum Stand der Technik - typische Montagerichtung, da ein Einschieben von hinten in das Gehäuse einen größeren Gehäuseinnenraum erfordern würde.Specifically, it is recommended that the first locking means have two axially aligned, with their free ends to the front end of the housing facing arms, each with a radially inwardly directed nose, the nose having a front, flatter and a rear, steeper slope. Such a configuration requires insertion the locking body during assembly from the front end of the housing forth. This is the typical mounting direction for the present invention, as opposed to the prior art, as inserting from behind into the housing would require a larger housing interior.

Als zusätzliche Dichtungsmaßnahme hat es sich als vorteilhaft erwiesen, wenn das Kabel in einem zwischen den ersten Rastmitteln und dem hinteren Ende des Gehäuses liegenden Dichtungsbereich von einer dicht an ihn anliegenden Lamellendichtung umgriffen ist, die radial außen dicht an der Wandung des Gehäuseinnenraums anliegt. Um eine ungewollte axiale Verlagerung der Lamellendichtung während des Betriebs zu verhindern, ist bei einer bevorzugten Weiterbildung vorgesehen, dass die Wandung des Gehäuseinnenraums zur axialen Begrenzung des Dichtungsbereichs unmittelbar vor und/oder hinter diesem einen nach radial innen vorspringenden Kragen aufweist, an dem die Lamellendichtung axial anliegt. Der Lamellendichtung wird somit eine eigene Kammer im Gehäuseinnenraum zugwiesen, in die sie aufgrund ihrer üblichen Eigenelastizität eingerastet werden kann.As an additional sealing measure, it has proven to be advantageous if the cable is gripped in a lying between the first locking means and the rear end of the housing sealing region of a tightly against him lamellar seal, which bears radially on the outside tight against the wall of the housing interior. In order to prevent an unintentional axial displacement of the lamellar seal during operation, it is provided in a preferred development that the wall of the housing interior for axially delimiting the sealing region immediately before and / or behind this has a radially inwardly projecting collar on which the lamellar seal axially is applied. The lamellar seal is thus assigned its own chamber in the housing interior, in which it can be locked due to their usual inherent elasticity.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden speziellen Beschreibung und den Zeichnungen.Further features and advantages of the invention will become apparent from the following specific description and the drawings.

Kurzbeschreibung der ZeichnungenBrief description of the drawings

Es zeigen:

Figur 1:
einen ersten Verfahrensschritt zur Montage eines erfindungsgemäßen Steckverbinders,
Figur 2:
einen zweiten Verfahrensschritt zur Montage eines erfindungsgemäßen Steckverbinders,
Figur 3:
einen dritten Verfahrensschritt zur Montage eines erfindungsgemäßen Steckverbinders,
Figur 4:
einen vierten Verfahrensschritt zur Montage eines erfindungsgemäßen Steckverbinders,
Figur 5:
eine teilweise geschnittene Darstellung des resultierenden Steckverbinders,
Figur 6:
Kontakteinheit, Rastkörper und Lamellendichtungen einer alternativen Ausführungsform eines erfindungsgemäßen Steckverbinders,
Figur 7:
eine alternative Ausbildung einer Lamellendichtung für einen zweipoligen Steckverbinder.
Show it:
FIG. 1:
a first method step for mounting a connector according to the invention,
FIG. 2:
a second method step for mounting a connector according to the invention,
FIG. 3:
a third method step for mounting a connector according to the invention,
FIG. 4:
a fourth method step for mounting a connector according to the invention,
FIG. 5:
a partially sectioned view of the resulting connector,
FIG. 6:
Contact unit, latching body and plate seals of an alternative embodiment of a connector according to the invention,
FIG. 7:
an alternative embodiment of a lamellar seal for a two-pin connector.

Ausführliche Beschreibung bevorzugter AusführungsformenDetailed description of preferred embodiments

Figur 1 zeigt einen ersten Verfahrensschritt zur Montage eines erfindungsgemäßen Steckverbinders 10 (wie in Figur 4 gezeigt), wobei eine Lamellendichtung 12 auf ein Kabel 14 mit einem freien Ende 141 aufgeschoben wird. Die Kurbel umfasst eine elektrisch leitende Seele 143 und einen isolierenden Mantel 142. Die Lamellendichtung 12 weist bei der dargestellten Ausführungsform drei ringscheibenartige Lamellen 121 auf, die mit axial kompressiblen Stegen 122 miteinander verbunden sind. Die zentrale Öffnung 123 der Lamellen 121 und der Stege 122 ist so dimensioniert, dass sie das Kabel 14 kraftschlüssig umgreift, wobei der Kraftschluss durch die Form- und Materialelastizität der Lamellendichtung 12 gewährleistet ist. Hierdurch wird eine Längswasserdichtigkeit zwischen Lamellendichtung 12 und Kabel 14 erreicht. FIG. 1 shows a first method step for mounting a connector 10 according to the invention (as in FIG. 4 shown), wherein a lamellar seal 12 is pushed onto a cable 14 with a free end 141. The crank comprises an electrically conductive core 143 and an insulating jacket 142. In the illustrated embodiment, the lamellar seal 12 has three annular disk-like lamellae 121, which are connected to each other with axially compressible webs 122. The central opening 123 of the lamellae 121 and the webs 122 is dimensioned such that it engages around the cable 14 in a force-fitting manner, the adhesion being ensured by the shape and material elasticity of the lamellar seal 12. As a result, a longitudinal water-tightness between the plate seal 12 and cable 14 is achieved.

Figur 2 zeigt einen zweiten Verfahrensschritt, wobei das gemäß Figur 1 vorkonfektionierte Kabel 14 an seinem freien Ende 141 mit einem Polstiftabschnitt 16 versehen wird. Der Polstiftabschnitt 16 ist als gestanztes und gefaltetes Blechteil ausgebildet und weist den eigentlichen Polstift 161 sowie einen Koppelbereich 162 auf. Der Koppelbereich 162 umfasst zwei Crimpstellen 163, 164. Mit der randständigen Crimpstelle 163 ist er mit dem Mantel 142 des Kabels 14 vercrimpt; mit der anderen Crimpstelle 164 ist er mit der hier abisolierten Seele 143 des Kabels 14 vercrimpt. Auf diese Weise entsteht eine mechanische und gleichzeitig elektrische Verbindung zwischen dem Kabel 14 und dem Polstiftabschnitt 16, sodass beide gemeinsam die Kontakteinheit 18 bilden. FIG. 2 shows a second method step, wherein the according to FIG. 1 prefabricated cable 14 is provided at its free end 141 with a Polstiftabschnitt 16. The Polstiftabschnitt 16 is formed as a stamped and folded sheet metal part and has the actual pole pin 161 and a coupling region 162. The coupling region 162 comprises two crimping points 163, 164. With the marginal crimping point 163 it is crimped with the sheath 142 of the cable 14; with the other crimping point 164 it is crimped with the stripped soul 143 of the cable 14 here. In this way, a mechanical and simultaneously electrical connection between the cable 14 and the Polstiftabschnitt 16, so that both together form the contact unit 18 is formed.

Figur 3 zeigt das Ergebnis eines dritten Verfahrensschrittes, in dem der gesamte Koppelbereich 162 des Polstiftabschnitts 16 in einem Umspritzungsprozess mit einem Rastkörper 20 umspritzt ist. Der Rastkörper 20 besteht aus einem Kunststoff-Vollmaterial, welches den Koppelbereich 162 des Polstiftabschnitts 16 fest einbettet. Er hat eine vergleichsweise einfache Außenstruktur, nämlich die Form eines zweiseitig abgeflachten Zylinders 201 mit einer in etwa quadratischen Stirnplatte 202. Der Polstift 161 ragt aus der Stirnplatte 202 heraus. Im Bereich der abgeflachten Seiten des Zylinderkörpers 201 ist jeweils eine Rastvertiefung 203 angeordnet, auf deren Bedeutung weiter unten näher eingegangen werden soll. FIG. 3 shows the result of a third process step in which the entire coupling region 162 of the Polstiftabschnitts 16 is encapsulated in a Umspritzungsprozess with a locking body 20. The latching body 20 consists of a solid plastic material, which embeds the coupling region 162 of the Polstiftabschnitts 16 fixed. He has a comparatively simple outer structure, namely the shape of a two-sided flattened cylinder 201 with an approximately square face plate 202. The pole pin 161 protrudes from the face plate 202 out. In the region of the flattened sides of the cylinder body 201, a detent recess 203 is arranged in each case, whose significance will be discussed in more detail below.

Figur 4 zeigt den abschließenden Montageschritt, nämlich das Einsetzen der mit dem Rastkörper 20 versehenen Kontakteinheit 18 in ein Gehäuse 22. Das Gehäuse 22 weist einen axial durchgehenden, kanalartigen Gehäuseinnenraum 221 auf, in den die Kontakteinheit 18 gemäß dem Montagerichtungspfeil 24 eingeschoben wird. Die Kontakteinheit 18 wird so tief eingeschoben, bis die Rastnasen 223 zweier Rastarme 222, die sich in dem Gehäuseinnenraum 221 in Richtung auf dessen vorderes Ende hin erstrecken, in die Rastausnehmungen 203 einrasten und die Kontakteinheit 18 so im Gehäuse 2 fixieren. Die Lamellendichtung 12 kommt dabei im Bereich hinter den Rastarmen 222 zu liegen und liegt mit den Außenumfängen ihrer Lamellen 121 dichtend an der Wandung des Gehäuseinnenraums 221 an. FIG. 4 shows the final assembly step, namely the insertion of the latching body 20 provided with the contact unit 18 in a housing 22. The housing 22 has an axially continuous, channel-like housing interior 221, in which the contact unit 18 is inserted according to the Montagerichtungspfeil 24. The contact unit 18 is inserted so deeply until the latching lugs 223 of two latching arms 222, which extend in the housing interior 221 in the direction of its front end, engage in the latching recesses 203 and fix the contact unit 18 in the housing 2. The lamellar seal 12 comes to lie in the area behind the latching arms 222 and lies with the outer peripheries of their fins 121 sealingly against the wall of the housing interior 221.

Figur 5 zeigt einen entsprechenden Steckverbinder in Montageendstellung. FIG. 5 shows a corresponding connector in the final assembly position.

Man beachte, dass die Montagereihenfolge, wie in den Figuren 1 bis 4 gezeigt, nur so eingehalten werden kann, wenn die Kabel 14 einsträngig sind und jeweils zwei freie Enden aufweisen, sodass sie auch nach Erstellung des Rastkörpers 20 durch den Gehäuseinnraum 221 gefädelt werden können. In vielen Fällen ist dies jedoch nicht gegeben, beispielsweise wenn zwei Polstifte 161 eines Steckverbinders 10 mit den beiden Enden eines zu einer Schlaufe gewundenen Kabels 14 verbunden sind. In diesem Fall ist es erforderlich, dass das Gehäuse 22 bereits vor der Erstellung des Rastkörpers 20 auf das Kabel 14 aufgefädelt wird, vorzugsweise sogar vor der Konfektionierung der Kontakteinheit 18 gemäß Figur 2, besonders bevorzugt sogar noch vor dem Aufschieben der Lamellendichtung 12 gemäß Figur 1.Note that the assembly order, as in the FIGS. 1 to 4 shown only when the cables 14 are single-stranded and each have two free ends, so that they can be threaded through the housing cavity 221 even after creation of the locking body 20. In many cases, however, this is not the case, for example, when two pole pins 161 of a connector 10 are connected to the two ends of a looped cable 14 to a loop. In this case, it is necessary that the housing 22 is already threaded onto the cable 14 before the creation of the detent body 20, preferably even before the assembly of the contact unit 18 according to FIG FIG. 2 , Particularly preferably even before the sliding of the plate seal 12 according to FIG. 1 ,

Figur 6 zeigt eine alternative Ausgestaltung eines Rastkörpers 20'. Bei dieser Ausführungsform sind zwei gemäß Figur 2 konfektionierte Kontakteinheiten 18 gemeinsam mit einem Rastkörper 20' umspritzt. Die beiden Zylinderkörper 201' sind einstückig mit einer sie verbindenden, rechteckigen Stirnplatte 202' verbunden. Bei der gezeigten Ausführungsform weist jeder der Zylinderkörper 201' eine Rastausnehmung 203' auf; denkbar wäre auch eine einzige, gemeinsame Rastausnehmung im Bereich der Stirnplatte 202'. In Figur 6 sind die Lamellendichtungen 12 für jedes Kabel 14 so ausgestaltet, wie im Zusammenhang mit Figur 1 beschrieben. FIG. 6 shows an alternative embodiment of a detent body 20 '. In this embodiment, two according to FIG. 2 prefabricated contact units 18 together with a locking body 20 'overmolded. The two cylinder body 201 'are integrally connected to a connecting them, rectangular face plate 202'. In the embodiment shown, each of the cylinder bodies 201 'has a latching recess 203'; It would also be conceivable to have a single, common recess in the area of the end plate 202 '. In FIG. 6 For example, the louver seals 12 for each cable 14 are configured as described in connection with FIG FIG. 1 described.

Figur 7 zeigt eine alternative Ausgestaltung einer Lamellendichtung 12', bei der die Kabelaufnahmen nicht konzentrisch zum Außendurchmesser der Lamelle 121' und der Stege 122' ausgebildet sind. Vielmehr weist die Lamellendichtung 12' zwei parallele Kanäle 124' auf. FIG. 7 shows an alternative embodiment of a lamellar seal 12 ', in which the cable receptacles are not concentric with the outer diameter of the lamella 121' and the webs 122 'are formed. Instead, the lamellar seal 12 'has two parallel channels 124'.

Natürlich stellen die in der speziellen Beschreibung diskutierten und in den Figuren gezeigten Ausführungsformen nur illustrative Ausführungsbeispiele der vorliegenden Erfindung dar. Dem Fachmann ist im Lichte der hiesigen Offenbarung ein breites Spektrum von Variationsmöglichkeiten an die Hand gegeben. Insbesondere kann die Form des Steckergehäuses und der Polstifte sowie deren Anzahl je nach den Erfordernissen des Einzelfalls vom Fachmann variiert werden.Of course, the embodiments discussed in the specific description and shown in the figures represent only illustrative embodiments of the present invention. A broad range of possible variations will be apparent to those skilled in the art in light of the disclosure herein. In particular, the shape of the plug housing and the pole pins and their number can be varied according to the requirements of the individual case by those skilled in the art.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
SteckverbinderConnectors
12, 12'12, 12 '
Lamellendichtunglamellar seal
121, 121'121, 121 '
Lamellelamella
122, 122'122, 122 '
Stegweb
123, 123'123, 123 '
KabelkanalCabel Canal
1414
Kabelelectric wire
141141
freies Ende von 14free end of 14
142142
Mantelcoat
143143
Seelesoul
1616
PolstiftabschnittPolstiftabschnitt
161161
Polstiftpole pin
162162
Koppelbereichcoupling region
163163
Crimpstellecrimping
164164
Crimpstellecrimping
1818
KontakteinheitContact unit
20, 20'20, 20 '
Rastkörper, UmspritzungskörperCatch body, encapsulation body
201, 201'201, 201 '
Zylinderkörpercylinder body
202, 202'202, 202 '
Stirnplattefaceplate
203, 203'203, 203 '
Rastausnehmungrecess
2222
Gehäusecasing
221221
GehäuseinnenraumHousing interior
222222
Rastarmdetent arm
223223
Rastnaselocking lug
2424
MontagerichtungspfeilInstallation direction arrow

Claims (10)

Elektrischer Steckverbinder, umfassend - ein Gehäuse (22) mit einem vorderen Ende und einem hinteren Ende, die über einen beidseitig offenen Gehäuseinnenraum (221), dessen Wandung mit ersten Rastmitteln (222, 223) ausgestattet ist, miteinander verbunden sind, - einen im Gehäuseinnenraum (221) angeordneten Rastkörper (20), dessen Wandung mit zweiten Rastmitteln (203) ausgestattet ist, welche derart mit den ersten Rastmitteln (222, 223) wechselwirken, dass der Rastkörper (20) im Gehäuseinnenraum (221) axial fixiert ist, und - eine in dem Rastkörper (20) fixierte und diesen axial durchsetzende Kontakteinheit (18), umfassend einen zum vorderen Ende des Gehäuses (22) weisenden, steifen Polstiftabschnitt (16) und ein elektrisch und mechanisch mit diesem verbundenes, das hintere Ende des Gehäuses (22) durchsetzendes Kabel (14), dadurch gekennzeichnet,
dass der Rastkörper (20) als ein die Kontakteinheit (18) im Verbindungsbereich des Kabels (14) mit dem Polstiftabschnitt (16) fest einbettender Umspritzungskörper ausgebildet ist.
Electrical connector, comprising a housing (22) having a front end and a rear end, which are connected to one another via a housing interior (221) which is open on both sides and whose wall is provided with first latching means (222, 223), - One in the housing interior (221) arranged latching body (20) whose wall is equipped with second locking means (203) which interact with the first latching means (222, 223) such that the latching body (20) axially fixed in the housing interior (221) is and - One in the locking body (20) fixed and axially passing through this contact unit (18) comprising a front end of the housing (22) facing, rigid Polstiftabschnitt (16) and an electrically and mechanically connected thereto, the rear end of the housing ( 22) passing through cable (14), characterized,
in that the latching body (20) is designed as an extrusion-coating body firmly embedding the contact unit (18) in the connection region of the cable (14) with the pole pin section (16).
Steckverbinder nach Anspruch 1,
dadurch gekennzeichnet,
dass das Kabel (14) eine mit einem elektrisch isolierenden Mantel (142) ummantelte, elektrisch leitende Seele (143) aufweist und der Mantel (142) stoffschlüssig mit dem Rastkörper (20) verbunden ist.
Connector according to claim 1,
characterized,
that the cable (14) with an electrically insulating sheath (142) coated, having electrically conductive core (143) and the jacket (142) material fit with the locking body (20) is connected.
Steckverbinder nach Anspruch 2,
dadurch gekennzeichnet,
dass der Mantel (142) und der Rastkörper (20) im Stoffschlussbereich materialeinheitlich ausgebildet sind.
Connector according to claim 2,
characterized,
that the jacket (142) and the latching body (20) are of the same material in the material connection region.
Steckverbinder (10) nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,
dass das Kabel (14) in seinem Kontaktbereich zu dem Rastkörper (20) eine geschlossenporig poröse Elastomer-Manschette trägt.
Plug connector (10) according to one of the preceding claims,
characterized,
in that the cable (14) carries in its contact area to the latching body (20) a closed-pore porous elastomeric sleeve.
Steckverbinder nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,
dass die ersten Rastmittel (222, 223) nach radial innen gerichtete Vorsprünge (223) aufweisen, die in korrespondierende Ausnehmungen (203) in der Oberfläche des Rastkörpers (20) eingreifen.
Connector according to one of the preceding claims,
characterized,
in that the first latching means (222, 223) have radially inwardly directed projections (223) which engage in corresponding recesses (203) in the surface of the latching body (20).
Steckverbinder nach Anspruch 5,
dadurch gekennzeichnet,
dass die ersten Rastmittel (222, 223) zwei axial ausgerichtete, mit ihren freien Enden zum vorderen Ende des Gehäuses (22) weisende Arme (222) mit je einer nach radial innen gerichteten Nase (223) aufweisen, wobei die Nase (223) eine vordere, flachere und eine hintere, steilere Schräge aufweist.
Connector according to claim 5,
characterized,
in that the first latching means (222, 223) have two axially aligned arms (222) with their free ends facing the front end of the housing (22), each with a radially inwardly directed lug (223), wherein the lug (223) has a front, flatter and has a rear, steeper slope.
Steckverbinder nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,
dass das Kabel (14) in einem zwischen den ersten Rastmitteln (222, 223) und dem hinteren Ende des Gehäuses (22) liegenden Dichtungsbereich von einer dicht an ihm anliegenden Lamellendichtung (12, 12') umgriffen ist, die radial außen dicht an der Wandung des Gehäuseinnenraums (221) anliegt.
Connector according to one of the preceding claims,
characterized,
in that the cable (14) is encompassed in a sealing region lying between the first latching means (222, 223) and the rear end of the housing (22) by a lamellar seal (12, 12 ') lying close to it and sealing radially on the outside Wall of the housing interior (221) is applied.
Steckverbinder nach Anspruch 7,
dadurch gekennzeichnet,
dass die Wandung des Gehäuseinnenraums (221) zur axialen Begrenzung des Dichtungsbereichs unmittelbar vor und/oder hinter diesem einen nach radial innen vorspringenden Kragen aufweist, an dem die Lamellendichtung (12, 12') axial anliegt.
Connector according to claim 7,
characterized,
comprises that the wall of the housing interior (221) for axial limitation of the sealing area immediately before and / or behind a radially inward projecting collar, on which the lamellar seal (12, 12 ') bears axially.
Verfahren zur Montage eines elektrischen Steckverbinders, umfassend die Schritte: - Bereitstellen eines Gehäuses (22) mit einem vorderen Ende und einem hinteren Ende, die über einen beidseitig offenen Gehäuseinnenraum (221), dessen Wandung mit ersten Rastmitteln (222, 223) ausgestattet ist, miteinander verbunden sind, - Bereitstellen eines wenigstens ein freies Ende (141) aufweisenden, elektrisch leitfähigen Kabels (14), - Bereitstellen eines steifen Polstiftabschnitts (16) mit wenigstens einem Polstift (161) und einem einstückig mit diesem ausgebildeten Koppelbereich (162), - axiales Durchführen des Kabels (14) durch den Gehäuseinnenraum (221), sodass dessen freies Ende (141) über das vordere Ende des Gehäuses (22) hinausragt, - mechanisches Verbinden, unter Ausbildung einer elektrischen Verbindung, des freien Endes (141) des Kabels (14) mit dem Koppelbereich (161) des Polstiftabschnitts (16) zu einer Kontakteinheit (18), - Umspritzen der Kontakteinheit (18) im Bereich des Koppelbereichs (161) des Polstiftabschnitts (16) mit einem spritzbaren, elektrisch isolierenden Kunststoff unter Ausbildung eines zu den ersten Rastmitteln (222, 223) korrespondierende zweite Rastmittel (203) aufweisenden Rastkörpers (20) und - Einschieben des Rastkörpers (20) samt der von ihm eingebetteten Kontakteinheit (18) in das Gehäuse (22) bis zur axialen Fixierung des Rastkörpers (20) im Gehäuseinnenraum (221) durch Wechselwirkung der ersten Rastmittel (222, 223) mit den zweiten Rastmitteln (203). Method for assembling an electrical connector, comprising the steps: Providing a housing (22) having a front end and a rear end, which are connected to one another via a housing interior (221) which is open on both sides and whose wall is provided with first latching means (222, 223), Providing an electrically conductive cable (14) having at least one free end (141), Providing a rigid pole pin section (16) with at least one pole pin (161) and an integrally formed with this coupling region (162), axially passing the cable (14) through the housing interior (221) so that its free end (141) projects beyond the front end of the housing (22), - mechanically connecting, forming an electrical connection, the free end (141) of the cable (14) with the coupling region (161) of the pole pin portion (16) to a contact unit (18), - Overmolding of the contact unit (18) in the region of the coupling region (161) of the Polstiftabschnitts (16) with a sprayable, electrically insulating plastic to form a to the first locking means (222, 223) corresponding second latching means (203) having detent body (20) and - Insertion of the locking body (20) together with the embedded contact unit (18) in the housing (22) to the axial fixation of the locking body (20) in the housing interior (221) by interaction of the first locking means (222, 223) with the second locking means (203). Verfahren nach Anspruch 9,
dadurch gekennzeichnet,
dass das Kabel vor dem Umspritzungsschritt in seinem zu umspritzenden Längenabschnitt mit einer geschlossenporig poröse Elastomer-Manschette versehen wird.
Method according to claim 9,
characterized,
in that the cable is provided with a closed-pore porous elastomer sleeve before the encapsulation step in its length to be extrusion-coated.
EP15156538.9A 2014-02-26 2015-02-25 Electrical plug-in connector and method for its mounting Active EP2913898B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014102520.2A DE102014102520B4 (en) 2014-02-26 2014-02-26 Electrical connector and method for its assembly

Publications (2)

Publication Number Publication Date
EP2913898A1 true EP2913898A1 (en) 2015-09-02
EP2913898B1 EP2913898B1 (en) 2017-04-05

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ID=52577728

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DE (1) DE102014102520B4 (en)
ES (1) ES2623798T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116231372A (en) * 2023-05-06 2023-06-06 苏州华旃航天电器有限公司 Fakra connector

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030224660A1 (en) 2001-12-07 2003-12-04 Brooks Timothy W. Hybrid electrical connector for a lamp-to-harness interface
EP1583183A1 (en) * 2004-04-02 2005-10-05 Sumitomo Wiring Systems, Ltd. A watertight connector and a method of assembling it
CA2576626A1 (en) 2006-02-02 2007-08-02 Harting Electric Gmbh & Co. Kg Method for manufacturing a locking device as well as locking device for an electric contact in a plug-type connector
US7285004B1 (en) * 2005-04-21 2007-10-23 Yazaki North America, Inc. USB locking connector system
DE19700048B4 (en) 1996-01-05 2007-11-08 The Whitaker Corp., Wilmington Sealable electrical connector
DE202006012240U1 (en) 2006-08-08 2007-12-13 Rema Lipprandt Gmbh & Co. Kg Electrical connector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700048B4 (en) 1996-01-05 2007-11-08 The Whitaker Corp., Wilmington Sealable electrical connector
US20030224660A1 (en) 2001-12-07 2003-12-04 Brooks Timothy W. Hybrid electrical connector for a lamp-to-harness interface
EP1583183A1 (en) * 2004-04-02 2005-10-05 Sumitomo Wiring Systems, Ltd. A watertight connector and a method of assembling it
US7285004B1 (en) * 2005-04-21 2007-10-23 Yazaki North America, Inc. USB locking connector system
CA2576626A1 (en) 2006-02-02 2007-08-02 Harting Electric Gmbh & Co. Kg Method for manufacturing a locking device as well as locking device for an electric contact in a plug-type connector
DE202006012240U1 (en) 2006-08-08 2007-12-13 Rema Lipprandt Gmbh & Co. Kg Electrical connector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116231372A (en) * 2023-05-06 2023-06-06 苏州华旃航天电器有限公司 Fakra connector
CN116231372B (en) * 2023-05-06 2023-09-15 苏州华旃航天电器有限公司 Fakra connector

Also Published As

Publication number Publication date
EP2913898B1 (en) 2017-04-05
DE102014102520B4 (en) 2017-02-02
DE102014102520A1 (en) 2015-08-27
ES2623798T3 (en) 2017-07-12

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