EP3382825A1 - Sealing for coasting a welded joint between receptacle contacts and stamped grid - Google Patents

Sealing for coasting a welded joint between receptacle contacts and stamped grid Download PDF

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Publication number
EP3382825A1
EP3382825A1 EP18165144.9A EP18165144A EP3382825A1 EP 3382825 A1 EP3382825 A1 EP 3382825A1 EP 18165144 A EP18165144 A EP 18165144A EP 3382825 A1 EP3382825 A1 EP 3382825A1
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EP
European Patent Office
Prior art keywords
contact
connector
partner
metal component
hard metal
Prior art date
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Granted
Application number
EP18165144.9A
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German (de)
French (fr)
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EP3382825B1 (en
Inventor
Manuel Linseder
Fabian Hirschauer
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Hirschmann Automotive GmbH
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Hirschmann Automotive GmbH
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Publication of EP3382825A1 publication Critical patent/EP3382825A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/24—Assembling by moulding on contact members

Definitions

  • the invention relates to a connector having a contact carrier, wherein the contact carrier has at least one contact chamber, in which an arranged at one end of an electrical conductor and electrically conductive in the region of a contact contact partner is used, and the end portion of the connector from which the electrical conductor exits from the contact carrier is provided with an encapsulation, wherein the contact carrier has a free area for receiving a forming tool for producing the encapsulation, according to the features of the preamble of claim 1.
  • a contact carrier which has at least one contact chamber. In the contact chamber, a contact partner is used. The contact partner is connected to a stranded conductor via a crimp connection. Instead of the stranded conductor, a foil conductor may also be used.
  • the contact carrier has insertion openings which are located in the region of the crimp connection after the contact partner has been inserted into its contact chamber. These insertion openings serve to carry out a geometry of an injection molding tool through the latter up to the crimped connection and bring it into abutment there.
  • the invention has the object to improve a generic connector.
  • the electrical conductor is a hard metal component and the electrical connection between the contact partner and the hard metal component is a welded or soldered connection.
  • the invention provides to realize this sealing on a welding or soldering connection in place of the wire crimp.
  • the stranded conductor used in the prior art can not be connected to the contact partner via a welding connection, so that this is only possible through the hard metal component. The same applies to the solder connection.
  • the weld or solder connection between the hard metal component and the contact partner also realizes a reproducible geometry in the area of Contact point, so that the range of one or more parts injection molding tool that comes to the contact point to the plant, can be tailored to this geometry, especially in the series production of connectors with contact carrier including their encapsulation. It is fundamentally important that the geometry in the area in which the injection molding tool comes to rest, has a defined and reproducible design, since in turn the geometry of the injection molding tool must be adapted to this defined and reproducible design to leaks during the injection molding process avoid. This defined and reproducible design can be realized particularly well if both the contact partner of a hard, that is, unyielding material, as well as the electrical conductor to which the contact partner is connected.
  • the insertion openings also referred to as free area
  • the contact carrier is present in the contact carrier exactly at the point in which the crimp connection between the contact partner and the stranded conductor is located. This may also be the case in accordance with the present invention, but need not. In this case, it is thus provided according to a development of the invention that the contact point is in the free area.
  • an end of the contact partner remote from a plug-in region for a mating contact partner is flattened.
  • the contact carrier can also be made flat, but a flat contact point between the contact partner and the hard metal component can also be realized by means of a welding or soldering connection.
  • the flattened end of the contact partner has a rectangular cross section which corresponds to a rectangular cross section of the hard metal component in the region in which it is connected to the contact partner.
  • the hard metal component is a stamped grid.
  • a punched grid can be preferably used instead of stranded conductors or foil conductors, if the stability of the electrical conductor and / or the transmission of high energy densities is required.
  • a first embodiment of a connector 1 is shown.
  • the connector 1 has a contact carrier 2, which is initially made independently. The production can be done for example in a plastic injection molding process.
  • the contact carrier 2 on an encapsulation 3.
  • the encapsulation 3 is located on the mating face of the connector 1 opposite end from which at least one electrical conductor is led out.
  • the contact carrier 2 has at least one contact chamber, often more than one contact chamber, wherein a contact partner 4 is inserted in each contact chamber.
  • the contact partner 4 is arranged at the end of the electrical conductor.
  • the contact carrier 2 on a free area 5 is shown, the contact carrier 2 on a free area 5.
  • the free area 5 is preferably continuous and is interrupted only by the contact partner 2 or the electrical conductor when the contact partner 2 is inserted in its contact chamber in the contact carrier 2. But it can also be designed in the form of a recess.
  • the contact partner 2 is connected via a contact point 6 with the electrical conductor.
  • the electrical conductor is according to the invention, a hard metal component 7, in particular an end portion of a stamped grid, not shown. In the region of the contact point 6, this end region of the hard metal component 7 is arranged with the contact partner 4 via a welded or soldered connection and electrically contacted. If connectors 1 are produced in series, it must be ensured that the geometry, that is to say the external design of the contact point 6, is defined and reproducible for each contact partner 4 which is arranged at the end of such a component 7.
  • the arrangement of the contact point 6 in the free area 5 is particularly well in the sectional views according to the Figures 2 . 4 and 5 recognizable, it being also recognizable that the free area 5 also remains free after the formation of the encapsulation 3, since the injection molding tool or the end areas of a multi-part injection molding tool have been led out of this free area 5. It is also very clearly recognizable that not only the end face of the contact carrier 2 modified with the mating face of the connector 1 has been surrounded by the encapsulation, but also a portion of the hard metal component 7 which, together with the already arranged contact partners 4, is introduced from outside into the contact carrier 2 was (before the encapsulation).
  • the manufacture of the connector 1 according to the invention therefore takes place as follows: first, the contact carrier 2 is produced, for example produced in an injection molding process from plastic.
  • the hard metal component 7 is provided, as well as the contact partner 4.
  • the contact partner 4 is electrically connected via a soldered or welded connection with the associated end of the hard metal component 7 and thereby fixed, resulting in a well-defined and reproducible geometry of the contact point 6 is formed.
  • This unit from at the end of the hard metal component. 7 arranged contact partner 4 is inserted from the mating face of the connector 1 side facing away from the contact carrier 2. The introduction of this unit from the direction of the mating face is alternatively conceivable.
  • this assembly is inserted into an injection mold.
  • a part of the injection mold moves into the free area 5 and comes to the contact point 6 to the plant.
  • the inner region of the injection mold is filled with injection molding material, whereby the exemplified shape of the encapsulation 3 is formed.
  • the injection molding tool is removed and the finished connector 1 is ready for use. It may optionally be thought to provide the finished connector 1 with additional components, such as an outer housing or the like, in addition.
  • the contact point 6 not in the free area 5, but arranged offset thereto.
  • the contact point 6, which is located at the end of a contact lug of the contact partner 4 is displaced out of the free area 5 in the direction of the extrusion coating 3.
  • the contact point 6 in consideration of FIG. 7 is also located to the left of the free area 5.
  • the contact point 6 is arranged only in part in the free area 5 and with the remaining part laterally of this free area 5.
  • the assembly thus obtained is then placed in a Umspritzungstechnikmaschine, with tool inserts are matched to the insert in the weld so that a seal against the spray material is ensured so that it can not penetrate into the functional area of the socket contact.
  • the invention thus relates to a socket carrier, which is equipped with female contacts, wherein a lead frame is connected via, for example, a welded joint (alternatively solder joint) with the socket contact, and the assembly thus obtained is then placed in a Umspritzungstechnikmaschine, said tool inserts in the region of the weld so are matched to the insert that a seal against the spray material is ensured so that it can not penetrate into the functional area of the socket contact.

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

Abstract

Steckverbinder (1) mit einen Kontaktträger (2), wobei der Kontaktträger (2) zumindest eine Kontaktkammer aufweist, in die ein an einem Ende eines elektrischen Leiters angeordneter und mit diesem im Bereich einer Kontaktstelle (6) elektrisch leitend verbundener Kontaktpartner (4) eingesetzt ist und der Endbereich des Steckverbinders (1), aus dem der elektrische Leiter aus dem Kontaktträger (2) austritt, mit einer Umspritzung (3) versehen ist, wobei der Kontaktträger (2) einen Freibereich (5) zur Aufnahme eines formgebenden Werkzeuges zur Herstellung der Umspritzung (3) aufweist, dadurch gekennzeichnet, dass der elektrische Leiter eine Hartmetallkomponente (7) und die elektrische Verbindung zwischen dem Kontaktpartner (4) und der Hartmetallkomponente (7) eine Schweiß- oder Lötverbindung ist.

Figure imgaf001
Connector (1) having a contact carrier (2), wherein the contact carrier (2) has at least one contact chamber, in which an arranged at one end of an electrical conductor and with this in the region of a contact point (6) electrically connected contact partner (4) used is and the end portion of the connector (1) from which the electrical conductor from the contact carrier (2) exits, is provided with an encapsulation (3), wherein the contact carrier (2) has a free area (5) for receiving a forming tool for production the encapsulation (3), characterized in that the electrical conductor is a hard metal component (7) and the electrical connection between the contact partner (4) and the hard metal component (7) is a welded or soldered connection.
Figure imgaf001

Description

Die Erfindung betrifft einen Steckverbinder mit einen Kontaktträger, wobei der Kontaktträger zumindest eine Kontaktkammer aufweist, in die ein an einem Ende eines elektrischen Leiters angeordneter und mit diesem im Bereich einer Kontaktstelle elektrisch leitend verbundener Kontaktpartner eingesetzt ist, und der Endbereich des Steckverbinders, aus dem der elektrische Leiter aus dem Kontaktträger austritt, mit einer Umspritzung versehen ist, wobei der Kontaktträger einen Freibereich zur Aufnahme eines formgebenden Werkzeuges zur Herstellung der Umspritzung aufweist, gemäß den Merkmalen des Oberbegriffes des Patentanspruches 1.The invention relates to a connector having a contact carrier, wherein the contact carrier has at least one contact chamber, in which an arranged at one end of an electrical conductor and electrically conductive in the region of a contact contact partner is used, and the end portion of the connector from which the electrical conductor exits from the contact carrier is provided with an encapsulation, wherein the contact carrier has a free area for receiving a forming tool for producing the encapsulation, according to the features of the preamble of claim 1.

Es ist aus der EP 1 122 840 A1 bekannt, dass die Abdichtung der Crimpbuchse gegen Spritzmaterial im Bereich des Drahtcrimpes realisiert wird. Bei diesem Stand der Technik wird ein Kontaktträger bereitgestellt, der zumindest eine Kontaktkammer aufweist. In die Kontaktkammer wird ein Kontaktpartner eingesetzt. Der Kontaktpartner ist über eine Crimpverbindung mit einem Litzenleiter verbunden. Anstelle des Litzenleiters kann auch ein Folienleiter zur Anwendung kommen. Der Kontaktträger weist Einstecköffnungen auf, die sich im Bereich der Crimpverbindung befinden, nachdem der Kontaktpartner in seine Kontaktkammer eingesetzt worden ist. Diese Einstecköffnungen dienen dazu, eine Geometrie eines Spritzgusswerkzeuges durch diese bis in Richtung der Crimpverbindung durchzuführen und diese dort in Anlage zu bringen. Dadurch wird vermieden, dass bei Anbringung der Umspritzung das Kunststoffspritzgussmaterial von dem hinteren Teil des Kontaktträgers in Richtung der Kontaktkammer beziehungsweise in Richtung des Kontaktpartners gelangt. Gleichzeitig wird durch diese Umspritzung die erforderliche Längswasserdichtheit erzielt, womit verhindert wird, dass ausgehend von dem Litzenleiter beziehungsweise dessen Kabelmantel Wasser, Feuchtigkeit oder dergleichen bis in Richtung des Kontaktbereiches, in dem der Kontaktpartner des Steckverbinders mit einem Gegenkontaktpartner eines Gegensteckverbinders zusammengesteckt ist, gelangen kann. Bezüglich der grundsätzlich bekannten Ausführung in Bezug auf die Herstellung und die Konstruktion des bekannten Steckverbinders und der sich daraus ergebenden Vorteile wird beispielsweise auf die Absätze [0006] bis [0008] und ebenfalls beispielsweise auf die Figur 9 nebst zugehöriger Beschreibung der EP 1 122 840 A1 verwiesen.It is from the EP 1 122 840 A1 It is known that the sealing of the crimp bushing against spray material in the area of the wire crimp is realized. In this prior art, a contact carrier is provided which has at least one contact chamber. In the contact chamber, a contact partner is used. The contact partner is connected to a stranded conductor via a crimp connection. Instead of the stranded conductor, a foil conductor may also be used. The contact carrier has insertion openings which are located in the region of the crimp connection after the contact partner has been inserted into its contact chamber. These insertion openings serve to carry out a geometry of an injection molding tool through the latter up to the crimped connection and bring it into abutment there. This will avoid that when the encapsulation is applied, the plastic injection molding material passes from the rear part of the contact carrier in the direction of the contact chamber or in the direction of the contact partner. At the same time the required longitudinal water tightness is achieved by this extrusion coating, which prevents, starting from the stranded conductor or its cable jacket water, moisture or the like to the contact area, in which the contact partner of the connector is mated with a mating contact partner of a mating connector, can get. With respect to the basically known embodiment with respect to the manufacture and the construction of the known connector and the resulting advantages, for example, paragraphs [0006] to [0008] and also, for example, to the FIG. 9 together with the description of the EP 1 122 840 A1 directed.

Der Erfindung liegt die Aufgabe zugrunde, einen gattungsgemäßen Steckverbinder zu verbessern.The invention has the object to improve a generic connector.

Diese Aufgabe ist durch die Merkmale des Patentanspruches 1 gelöst.This object is solved by the features of claim 1.

Erfindungsgemäß ist vorgesehen, dass der elektrische Leiter eine Hartmetallkomponente und die elektrische Verbindung zwischen dem Kontaktpartner und der Hartmetallkomponente eine Schweiß- oder Lötverbindung ist. Mit anderen Worten sieht die Erfindung im Gegensatz zu dem bekannten Stand der Technik vor, diese Abdichtung auf einen Schweiß- oder Lötanschluss an Stelle des Drahtcrimpes zu realisieren. Der im Stand der Technik eingesetzte Litzenleiter lässt sich nicht über einen Schweißanschluss mit dem Kontaktpartner verbinden, sodass dies durch die Hartmetallkomponente erst möglich wird. Gleiches gilt für den Lötanschluss. Die Schweiß- oder Lötverbindung zwischen der Hartmetallkomponente und dem Kontaktpartner realisiert außerdem eine reproduzierbare Geometrie im Bereich der Kontaktstelle, sodass der Bereich eines ein- oder auch mehrteiligen Spritzgusswerkzeuges, der an der Kontaktstelle zur Anlage kommt, genau auf diese Geometrie abgestimmt werden kann, insbesondere bei der Serienherstellung von Steckverbindern mit Kontaktträger einschließlich ihrer Umspritzung. Dabei ist es grundsätzlich wichtig, dass die Geometrie in dem Bereich, in dem das Spritzgusswerkzeug zur Anlage kommt, eine definierte und reproduzierbare Gestaltung hat, da wiederum die Geometrie des Spritzgusswerkzeuges an diese definierte und reproduzierbare Gestaltung angepasst sein muss, um Undichtigkeiten während des Spritzgussvorganges zu vermeiden. Diese definierte und reproduzierbare Gestaltung lässt sich besonders gut realisieren, wenn sowohl der Kontaktpartner aus einem harten, das heißt unnachgiebigen Material besteht, als auch der elektrische Leiter, an den der Kontaktpartner angeschlossen ist. Bei einem Einsatz einer Crimpverbindung zwischen dem Kontaktpartner und dem Litzenleiter (beziehungsweise einem Folienleiter) besteht, wie es sich in der Praxis herausgestellt hat, immer wieder die Gefahr, dass die Crimpverbindung keine definierte sowie reproduzierbare Gestaltung aufweist und es somit beim Spritzgussvorgang zu Undichtigkeiten kommt. Dies wird insbesondere durch den Einsatz einer unter Krafteinwirkung des Spritzgusswerkzeuges nicht verformbaren Hartmetallkomponente, die den elektrischen Leiter bildet, vermieden.According to the invention it is provided that the electrical conductor is a hard metal component and the electrical connection between the contact partner and the hard metal component is a welded or soldered connection. In other words, in contrast to the known prior art, the invention provides to realize this sealing on a welding or soldering connection in place of the wire crimp. The stranded conductor used in the prior art can not be connected to the contact partner via a welding connection, so that this is only possible through the hard metal component. The same applies to the solder connection. The weld or solder connection between the hard metal component and the contact partner also realizes a reproducible geometry in the area of Contact point, so that the range of one or more parts injection molding tool that comes to the contact point to the plant, can be tailored to this geometry, especially in the series production of connectors with contact carrier including their encapsulation. It is fundamentally important that the geometry in the area in which the injection molding tool comes to rest, has a defined and reproducible design, since in turn the geometry of the injection molding tool must be adapted to this defined and reproducible design to leaks during the injection molding process avoid. This defined and reproducible design can be realized particularly well if both the contact partner of a hard, that is, unyielding material, as well as the electrical conductor to which the contact partner is connected. When using a crimp connection between the contact partner and the stranded conductor (or a foil conductor), as has been found in practice, there is always the risk that the crimped connection has no defined and reproducible design and thus leaks occur during the injection molding process. This is avoided in particular by the use of a non-deformable under the action of force of the injection molding tool carbide component, which forms the electrical conductor.

Im Stand der Technik ist es bekannt, dass die Einstecköffnungen (auch als Freibereich zu bezeichnen) in dem Kontaktträger genau an derjenigen Stelle vorhanden sind, in der auch die Crimpverbindung zwischen dem Kontaktpartner und dem Litzenleiter liegt. Gemäß der vorliegenden Erfindung kann dies ebenfalls der Fall sein, muss es aber nicht. In diesem Fall ist somit gemäß einer Weiterbildung der Erfindung vorgesehen, dass sich die Kontaktstelle in dem Freibereich befindet. Alternativ ist es denkbar, dass im Bereich der Einstecköffnungen (Freibereich) auch nur ein Teil des Kontaktpartners mit definierter Geometrie oder auch nur ein Teil der Hartmetallkomponente ebenfalls mit definierter Geometrie angeordnet wird und das Spritzgusswerkzeug auf diese definierte Geometrie fährt, dadurch die Abdichtung erzielt wird und danach der eigentliche Spritzgussvorgang zur Erstellung der Umspritzung zumindest eines Teiles des Kontaktträgers durchgeführt wird. Damit ist nach der Erfindung definiert, dass sich die Kontaktstelle außerhalb des Freibereiches befindet.In the prior art it is known that the insertion openings (also referred to as free area) are present in the contact carrier exactly at the point in which the crimp connection between the contact partner and the stranded conductor is located. This may also be the case in accordance with the present invention, but need not. In this case, it is thus provided according to a development of the invention that the contact point is in the free area. Alternatively, it is conceivable that in the region of the insertion openings (free area), only a part of the contact partner with a defined geometry or only a part of the Hard metal component is also arranged with a defined geometry and the injection mold moves to this defined geometry, thereby the seal is achieved and then the actual injection molding process for creating the encapsulation of at least a portion of the contact carrier is performed. It is thus defined according to the invention that the contact point is outside the free area.

In Weiterbildung der Erfindung ist vorgesehen, dass ein einem Steckbereich für einen Gegenkontaktpartner abgewandtes Ende des Kontaktpartners abgeflacht ist. Dadurch lässt sich nicht nur der Steckverbinder kompakt bauen, weil auch der Kontaktträger flach ausgeführt sein kann, sondern es lässt sich durch eine Schweiß- oder Lötverbindung auch eine flach bauende Kontaktstelle zwischen dem Kontaktpartner und der Hartmetallkomponente realisieren. Von besonderem Vorteil ist es, wenn das abgeflachte Ende des Kontaktpartners einen rechteckförmigen Querschnitt aufweist, der einem rechteckförmigen Querschnitt der Hartmetallkomponente in dem Bereich, in dem sie mit dem Kontaktpartner verbunden wird, entspricht.In a further development of the invention, it is provided that an end of the contact partner remote from a plug-in region for a mating contact partner is flattened. As a result, not only can the connector be made compact, because the contact carrier can also be made flat, but a flat contact point between the contact partner and the hard metal component can also be realized by means of a welding or soldering connection. It is particularly advantageous if the flattened end of the contact partner has a rectangular cross section which corresponds to a rectangular cross section of the hard metal component in the region in which it is connected to the contact partner.

Weitere Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben und werden im Zusammenhang mit den Ausführungsbeispielen beschrieben.Further embodiments of the invention are specified in the subclaims and will be described in connection with the exemplary embodiments.

In einer besonders vorteilhaften Ausgestaltung der Erfindung ist die Hartmetallkomponente ein Stanzgitter. Ein solches Stanzgitter lässt sich bevorzugt anstelle von Litzenleitern oder Folienleitern anwenden, wenn die Stabilität des elektrischen Leiters und/oder die Übertragung hoher Energiedichten erforderlich ist.In a particularly advantageous embodiment of the invention, the hard metal component is a stamped grid. Such a punched grid can be preferably used instead of stranded conductors or foil conductors, if the stability of the electrical conductor and / or the transmission of high energy densities is required.

Zwei Ausführungsbeispiele, auf die die Erfindung jedoch nicht beschränkt ist, werden im Folgenden beschrieben und anhand der Figuren näher erläutert.Two embodiments, to which the invention is not limited, are described below and explained in more detail with reference to FIGS.

In den Figuren 1 und 2 beziehungsweise 3 bis 5 ist ein erstes Ausführungsbeispiel eines Steckverbinders 1 dargestellt. Der Steckverbinder 1 weist einen Kontaktträger 2 auf, der zunächst eigenständig hergestellt wird. Die Herstellung kann beispielsweise in einem Kunststoffspritzgussverfahren erfolgen. Weiterhin weist der Kontaktträger 2 eine Umspritzung 3 auf. Die Umspritzung 3 befindet sich auf der dem Steckgesicht des Steckverbinders 1 abgewandten Ende, aus dem zumindest ein elektrischer Leiter herausgeführt ist. Im Bereich des Steckgesichtes des Kontaktträgers 2, wo keine Umspritzung 3 vorhanden ist, weist der Kontaktträger 2 zumindest eine Kontaktkammer, oftmals mehr als eine Kontaktkammer, auf, wobei in jeder Kontaktkammer ein Kontaktpartner 4 eingesetzt ist. Der Kontaktpartner 4 ist am Ende des elektrischen Leiters angeordnet.In the Figures 1 and 2 or 3 to 5, a first embodiment of a connector 1 is shown. The connector 1 has a contact carrier 2, which is initially made independently. The production can be done for example in a plastic injection molding process. Furthermore, the contact carrier 2 on an encapsulation 3. The encapsulation 3 is located on the mating face of the connector 1 opposite end from which at least one electrical conductor is led out. In the region of the mating face of the contact carrier 2, where no encapsulation 3 is present, the contact carrier 2 has at least one contact chamber, often more than one contact chamber, wherein a contact partner 4 is inserted in each contact chamber. The contact partner 4 is arranged at the end of the electrical conductor.

Wie in den Figuren 1 bis 5 dargestellt ist weist der Kontaktträger 2 einen Freibereich 5 auf. Der Freibereich 5 ist vorzugsweise durchgängig und wird nur von dem Kontaktpartner 2 beziehungsweise dem elektrischen Leiter unterbrochen, wenn der Kontaktpartner 2 in seiner Kontaktkammer in dem Kontaktträger 2 eingesetzt ist. Er kann aber auch in Form einer Ausnehmung gestaltet sein.As in the FIGS. 1 to 5 is shown, the contact carrier 2 on a free area 5. The free area 5 is preferably continuous and is interrupted only by the contact partner 2 or the electrical conductor when the contact partner 2 is inserted in its contact chamber in the contact carrier 2. But it can also be designed in the form of a recess.

Der Kontaktpartner 2 ist über eine Kontaktstelle 6 mit dem elektrischen Leiter verbunden. Der elektrische Leiter ist nach der Erfindung eine Hartmetallkomponente 7, insbesondere ein Endbereich eines nicht näher dargestellten Stanzgitters. Im Bereich der Kontaktstelle 6 ist dieser Endbereich der Hartmetallkomponente 7 mit dem Kontaktpartner 4 über eine Schweiß- oder Lötverbindung angeordnet und elektrisch kontaktiert. Werden Steckverbinder 1 in Serie produziert ist darauf zu achten, dass die Geometrie, das heißt die äußere Gestaltung der Kontaktstelle 6 definiert und reproduzierbar für jeden Kontaktpartner 4, der am Ende derart Komponente 7 angeordnet ist, ausgeführt ist. Dies ist deshalb erforderlich, da ein nicht dargestelltes Spritzgusswerkzeug beziehungsweise Endbereiche eines ein- oder mehrteiligen Spritzgusswerkzeuges durch den Freibereich 5 (oder in eine Ausnehmung) durch (in) den Kontaktträger 2 durchgeführt (eingeführt) werden, bis diese Endbereiche auf der Kontaktstelle 6 zur Anlage kommen. Dadurch wird die Bildung der Umspritzung 3 des Steckverbinders 1 realisiert und gleichzeitig sichergestellt, dass kein Spritzgussmaterial in Richtung des Steckgesichtes des Steckverbinders 1 gelangen kann. Insbesondere wird vermieden, dass das Spritzgussmaterial in die Kontaktkammer des Kontaktträgers 2 eindringen kann.The contact partner 2 is connected via a contact point 6 with the electrical conductor. The electrical conductor is according to the invention, a hard metal component 7, in particular an end portion of a stamped grid, not shown. In the region of the contact point 6, this end region of the hard metal component 7 is arranged with the contact partner 4 via a welded or soldered connection and electrically contacted. If connectors 1 are produced in series, it must be ensured that the geometry, that is to say the external design of the contact point 6, is defined and reproducible for each contact partner 4 which is arranged at the end of such a component 7. This is necessary because a not shown injection molding tool or end portions of a one- or multi-part injection molding tool through the free area 5 (or into a recess) by (in) the contact carrier 2 performed (introduced) until these end regions come to rest on the contact point 6. As a result, the formation of the encapsulation 3 of the connector 1 is realized and at the same time ensured that no injection molding material can get in the direction of the mating face of the connector 1. In particular, it is avoided that the injection molding material can penetrate into the contact chamber of the contact carrier 2.

Die Anordnung der Kontaktstelle 6 in dem Freibereich 5 ist besonders gut in den Schnittdarstellungen gemäß der Figuren 2, 4 und 5 erkennbar, wobei auch erkennbar ist, dass der Freibereich 5 nach der Bildung der Umspritzung 3 ebenfalls frei bleibt, da aus diesem Freibereich 5 das Spritzgusswerkzeug beziehungsweise die Endbereiche eines mehrteiligen Spritzgusswerkzeuges herausgeführt worden sind. Ebenso ist sehr gut erkennbar, dass nicht nur der dem Steckgesicht des Steckverbinders 1 abgewandelte Endbereich des Kontaktträgers 2 mit der Umspritzung umgeben worden ist, sondern auch ein Teilbereich der Hartmetallkomponente 7, die zusammen mit den schon angeordneten Kontaktpartner 4 von außen in den Kontaktträger 2 eingeführt wurde (vor der Umspritzung).The arrangement of the contact point 6 in the free area 5 is particularly well in the sectional views according to the Figures 2 . 4 and 5 recognizable, it being also recognizable that the free area 5 also remains free after the formation of the encapsulation 3, since the injection molding tool or the end areas of a multi-part injection molding tool have been led out of this free area 5. It is also very clearly recognizable that not only the end face of the contact carrier 2 modified with the mating face of the connector 1 has been surrounded by the encapsulation, but also a portion of the hard metal component 7 which, together with the already arranged contact partners 4, is introduced from outside into the contact carrier 2 was (before the encapsulation).

Die Herstellung des Steckverbinders 1 nach der Erfindung erfolgt daher wie folgt: es wird zunächst der Kontaktträger 2 hergestellt, zum Beispiel in einem Spritzgussvorgang aus Kunststoff hergestellt. Daneben wird die Hartmetallkomponente 7 bereitgestellt, genauso wie der Kontaktpartner 4. Der Kontaktpartner 4 wird über eine Löt- oder Schweißverbindung mit dem zugehörigen Ende der Hartmetallkomponente 7 elektrisch verbunden und dadurch fest angeordnet, wodurch sich eine genau definierte und reproduzierbare Geometrie der Kontaktstelle 6 ausbildet. Diese Einheit aus am Ende der Hartmetallkomponente 7 angeordneten Kontaktpartner 4 wird von der dem Steckgesicht des Steckverbinders 1 abgewandten Seite in den Kontaktträger 2 eingesetzt. Auch die Einführung dieser Einheit aus Richtung des Steckgesichtes ist alternativ denkbar. Nachdem der jeweilige Kontaktpartner 4 in seiner zugehörigen Kontaktkammer des Kontaktträgers 2 lagefixiert wurde (insbesondere mittels einer Primärverriegelung, beispielsweise mit einer Lasche des Kontaktpartners 4, die sich an einer entsprechenden Geometrie der Kontaktkammer abstützt), wird diese Baueinheit in ein Spritzgusswerkzeug eingesetzt. Dabei fährt ein Teil des Spritzgusswerkzeuges in den Freibereich 5 ein und kommt an der Kontaktstelle 6 zur Anlage. Anschließend wird der Innenbereich des Spritzgusswerkzeuges mit Spritzgussmaterial ausgefüllt, wodurch die beispielhaft gezeigte Form der Umspritzung 3 gebildet wird. Nachdem das Spritzgussmaterial ausgehärtet ist wird das Spritzgusswerkzeug entfernt und der fertige Steckverbinder 1 ist für seinen Einsatz bereit. Es kann gegebenenfalls daran gedacht werden, den fertigen Steckverbinder 1 mit weiteren Komponenten, wie zum Beispiel einem Außengehäuse oder dergleichen, noch ergänzend zu versehen.The manufacture of the connector 1 according to the invention therefore takes place as follows: first, the contact carrier 2 is produced, for example produced in an injection molding process from plastic. In addition, the hard metal component 7 is provided, as well as the contact partner 4. The contact partner 4 is electrically connected via a soldered or welded connection with the associated end of the hard metal component 7 and thereby fixed, resulting in a well-defined and reproducible geometry of the contact point 6 is formed. This unit from at the end of the hard metal component. 7 arranged contact partner 4 is inserted from the mating face of the connector 1 side facing away from the contact carrier 2. The introduction of this unit from the direction of the mating face is alternatively conceivable. After the respective contact partner 4 has been fixed in position in its associated contact chamber of the contact carrier 2 (in particular by means of a primary locking, for example with a tab of the contact partner 4, which is supported on a corresponding geometry of the contact chamber), this assembly is inserted into an injection mold. In this case, a part of the injection mold moves into the free area 5 and comes to the contact point 6 to the plant. Subsequently, the inner region of the injection mold is filled with injection molding material, whereby the exemplified shape of the encapsulation 3 is formed. After the injection molding material has cured, the injection molding tool is removed and the finished connector 1 is ready for use. It may optionally be thought to provide the finished connector 1 with additional components, such as an outer housing or the like, in addition.

In den Figuren 1 bis 5 ist, wie schon dargelegt, die Kontaktstelle 6 weitestgehend in dem Freibereich 5 angeordnet.In the FIGS. 1 to 5 is, as already stated, the contact point 6 largely arranged in the free area 5.

Im Gegensatz hierzu ist in dem Ausführungsbeispiel, welches in den Figuren 6 bis 8 dargestellt ist, die Kontaktstelle 6 nicht in dem Freibereich 5, sondern versetzt dazu angeordnet. Insbesondere mit Blick auf die Figur 7 ist erkennbar, dass die Kontaktstelle 6, die sich am Ende einer Kontaktfahne des Kontaktpartners 4 befindet, in Richtung der Umspritzung 3 aus dem Freibereich 5 heraus verlagert ist. Alternativ dazu ist es denkbar, dass die Kontaktstelle 6 bei Betrachtung der Figur 7 auch links von dem Freibereich 5 angeordnet wird. Ebenso ist es denkbar, dass die Kontaktstelle 6 nur zu einem Teil in dem Freibereich 5 und mit dem übrigen Teil seitlich von diesem Freibereich 5 angeordnet wird.In contrast, in the embodiment, which in the FIGS. 6 to 8 is shown, the contact point 6 not in the free area 5, but arranged offset thereto. Especially with a view to the FIG. 7 It can be seen that the contact point 6, which is located at the end of a contact lug of the contact partner 4, is displaced out of the free area 5 in the direction of the extrusion coating 3. Alternatively, it is conceivable that the contact point 6 in consideration of FIG. 7 is also located to the left of the free area 5. It is also conceivable that the contact point 6 is arranged only in part in the free area 5 and with the remaining part laterally of this free area 5.

Die Figuren 9 und 10 zeigen in anderer Darstellung das Ausführungsbeispiel gemäß der Figuren 3 bis 5 die Figuren 11 und 12 zeigen in anderer Darstellung das Ausführungsbeispiel gemäß der Figuren 6 bis 8.The Figures 9 and 10 show in another illustration the embodiment according to the FIGS. 3 to 5 the Figures 11 and 12 show in another illustration the embodiment according to the FIGS. 6 to 8 ,

Das erfindungsgemäße Konzept besteht mit anderen Worten aus einem Buchsenträger (= Kontaktträger), welcher mit Buchsenkontakten (=Kontaktpartner) bestückt wird. Daran angeschlossen befindet sich jedoch anstelle eines runden Leiters ein Stanzgitter. Folglich wird die Verbindung nicht über einen Crimp, sondern über zum Beispiel eine Schweißverbindung (alternativ Lötverbindung) hergestellt. Die so gewonnene Baugruppe wird anschließend in ein Umspritzungswerkzeug eingelegt, wobei Werkzeugeinsätze im Bereich der Schweißverbindung so auf das Einlegeteil abgestimmt sind, dass eine Abdichtung gegen das Spritzmaterial gewährleistet ist, damit dieses nicht in den Funktionsbereich des Buchsenkontaktes vordringen kann. Die Erfindung betrifft somit einen Buchsenträger, welcher mit Buchsenkontakten bestückt wird, wobei ein Stanzgitter über zum Beispiel eine Schweißverbindung (alternativ Lötverbindung) mit dem Buchsenkontakt verbunden wird, und die so gewonnene Baugruppe anschließend in ein Umspritzungswerkzeug eingelegt wird, wobei Werkzeugeinsätze im Bereich der Schweißverbindung so auf das Einlegeteil abgestimmt sind, dass eine Abdichtung gegen das Spritzmaterial gewährleistet ist, damit dieses nicht in den Funktionsbereich des Buchsenkontaktes vordringen kann.In other words, the inventive concept consists of a socket carrier (= contact carrier) which is equipped with socket contacts (= contact partner). Connected to this, however, is a punched grid instead of a round conductor. Consequently, the connection is not made via a crimp, but via, for example, a welded joint (alternatively solder joint). The assembly thus obtained is then placed in a Umspritzungswerkzeug, with tool inserts are matched to the insert in the weld so that a seal against the spray material is ensured so that it can not penetrate into the functional area of the socket contact. The invention thus relates to a socket carrier, which is equipped with female contacts, wherein a lead frame is connected via, for example, a welded joint (alternatively solder joint) with the socket contact, and the assembly thus obtained is then placed in a Umspritzungswerkzeug, said tool inserts in the region of the weld so are matched to the insert that a seal against the spray material is ensured so that it can not penetrate into the functional area of the socket contact.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1.1.
SteckverbinderConnectors
2.Second
Kontaktträgercontact support
3.Third
Umspritzungencapsulation
4.4th
KontaktpartnerContact partner
5.5th
Freibereichoutdoor Space
6.6th
Kontaktstellecontact point
7.7th
HartmetallkomponenteCarbide component

Claims (8)

Steckverbinder (1) mit einen Kontaktträger (2), wobei der Kontaktträger (2) zumindest eine Kontaktkammer aufweist, in die ein an einem Ende eines elektrischen Leiters angeordneter und mit diesem im Bereich einer Kontaktstelle (6) elektrisch leitend verbundener Kontaktpartner (4) eingesetzt ist und der Endbereich des Steckverbinders (1), aus dem der elektrische Leiter aus dem Kontaktträger (2) austritt, mit einer Umspritzung (3) versehen ist, wobei der Kontaktträger (2) einen Freibereich (5) zur Aufnahme eines formgebenden Werkzeuges zur Herstellung der Umspritzung (3) aufweist, dadurch gekennzeichnet, dass der elektrische Leiter eine Hartmetallkomponente (7) und die elektrische Verbindung zwischen dem Kontaktpartner (4) und der Hartmetallkomponente (7) eine Schweiß- oder Lötverbindung ist.Connector (1) having a contact carrier (2), wherein the contact carrier (2) has at least one contact chamber, in which an arranged at one end of an electrical conductor and with this in the region of a contact point (6) electrically connected contact partner (4) used is and the end portion of the connector (1) from which the electrical conductor from the contact carrier (2) exits, is provided with an encapsulation (3), wherein the contact carrier (2) has a free area (5) for receiving a forming tool for production the encapsulation (3), characterized in that the electrical conductor is a hard metal component (7) and the electrical connection between the contact partner (4) and the hard metal component (7) is a welded or soldered connection. Steckverbinder (1) nach Anspruch 1, dadurch gekennzeichnet, dass sich die Kontaktstelle (6) in dem Freibereich (5) befindet.Connector (1) according to claim 1, characterized in that the contact point (6) in the free area (5). Steckverbinder (1) nach Anspruch 1, dadurch gekennzeichnet, dass sich die Kontaktstelle (6) außerhalb des Freibereiches (5) befindet.Connector (1) according to claim 1, characterized in that the contact point (6) outside the free area (5). Steckverbinder (1) nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass ein einem Steckbereich für einen Gegenkontaktpartner abgewandtes Ende des Kontaktpartners (4) abgeflacht ist.Connector (1) according to claim 1, 2 or 3, characterized in that a plug-in area facing away for a mating contact partner end of the contact partner (4) is flattened. Steckverbinder (1) nach Anspruch 4, dadurch gekennzeichnet, dass die Abflachung im Bereich der Kontaktstelle (6) vorhanden ist.Connector (1) according to claim 4, characterized in that the flattening in the region of the contact point (6) is present. Steckverbinder (1) nach Anspruch 5, dadurch gekennzeichnet, dass sich die Abflachung über die Kontaktstelle (6) in Richtung des Steckbereiches für den Gegenkontaktpartner erstreckt und im Freibereich (5) liegt.Connector (1) according to claim 5, characterized in that the flattening extends over the contact point (6) in the direction of the plug-in area for the mating contact partner and in the open area (5). Steckverbinder (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Hartmetallkomponente (7) ein Stanzgitter ist.Connector (1) according to one of the preceding claims, characterized in that the hard metal component (7) is a stamped grid. Steckverbinder (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Hartmetallkomponente (7) im Bereich der Umspritzung (3) zumindest eine Ausbuchtung und/oder zumindest eine Einbuchtung aufweist.Connector (1) according to any one of the preceding claims, characterized in that the hard metal component (7) in the region of the encapsulation (3) has at least one bulge and / or at least one indentation.
EP18165144.9A 2017-03-31 2018-03-29 Sealing for coasting a welded joint between receptacle contacts and stamped grid Active EP3382825B1 (en)

Applications Claiming Priority (1)

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DE102017106965 2017-03-31

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DE (1) DE102018107650A1 (en)
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1122840A1 (en) 2000-01-31 2001-08-08 Hirschmann Austria GmbH Process for manufacturing a socket connector and socket connector
US20020173180A1 (en) * 2001-05-21 2002-11-21 Nagano Fujitsu Component SMT connector and method of production of same
DE102015007725A1 (en) * 2015-05-27 2016-12-01 Wabco Gmbh Electrical connector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1122840A1 (en) 2000-01-31 2001-08-08 Hirschmann Austria GmbH Process for manufacturing a socket connector and socket connector
US20020173180A1 (en) * 2001-05-21 2002-11-21 Nagano Fujitsu Component SMT connector and method of production of same
DE102015007725A1 (en) * 2015-05-27 2016-12-01 Wabco Gmbh Electrical connector

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ES2836174T3 (en) 2021-06-24
EP3382825B1 (en) 2020-10-21
DE102018107650A1 (en) 2018-10-04

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