EP2777097B1 - Shielded connector and method of manufacturing a shielded connector - Google Patents

Description

The invention relates to a shielded connector and a method for producing a shielded connector according to the features of the respective preambles of the two independent claims.

From the DE 10 2006 012 194 A1 is a shielded connector, here in angled version, known which comprises an assembly which comprises a shielding sleeve surrounded by a contact carrier in which are arranged at the end of electrical conductors of a shielding braid cable arranged contact partners, comprising one of the shielding sleeve and a shield case formed from one end of the cable extends from the end of the cable to the contact carrier. With such a shielded connector, it is possible that signals, in particular high-frequency signals, can be transmitted via the electrical conductors of the cable and the contact partners arranged at their ends. If the connector is mated with a mating connector, it is necessary not only to assemble the contact partners of the connector and the corresponding mating connector, but it must also be ensured that there is a continuous shielding of the transmitted signals against interference. At the same time it must be ensured by means of a continuous shielding along the cable and also in the region of the plug-in connection that it is prevented that high-frequency signals are radiated to the outside from the electrical conductors. For this purpose, in the generic state of the art, a connector is arranged at the end of a cable, which has a shielding braid or the like in a manner known per se. This connector has a contact carrier, in turn Having contact chambers arranged thereon with contact partners. The contact carrier is made of electrically non-conductive material (such as a plastic), so it must be surrounded by a shield. This shielding housing, which extends from the end of the cable to the contact carrier and possibly to a knurled nut or the like, consists here of several parts. Thus, a shielding sleeve made of an electrically conductive material is arranged coaxially over the contact carrier in the axial direction. This shielding sleeve is in electrically conductive connection with a connecting element, for example a cap screw, a knurled nut or the like. By means of this connecting element, it is ensured that the connector when it has been mated with a mating connector mechanically fixed via this connecting element with a corresponding connecting element of the mating connector (to avoid the separation) and at the same time is electrically kontaktier. As a result of this electrical contact is ensured that the shield is given over the connector away.

Furthermore, in this prior art, the shield case includes not only the shield sleeve but also another shield case, which is formed in the form of two shield case halves. The shielding sleeve has a cylinder wall, a flange with which the shielding sleeve is held on the plug insert by means of the cap screw. Furthermore, the shielding sleeve has a groove, engage in the shield housing halves of the shield with corresponding folds. In order to ensure the correct alignment of the screen housing halves, attacks are still provided. The screen housing halves each have an opening for injecting hot melt adhesive. Furthermore, the shield housing halves on pins which engage in corresponding holes in the associated housing half. The dimensions are such that a press fit occurs during assembly of the screen housing halves.

This embodiment of the screen housing in the form of two parts is extremely complicated to produce, since the two shielding housing halves to be brought into contact with one another have a filigree geometry. In addition, the openings through which the hot melt adhesive must be introduced into the interior of the screen housing, from a high-frequency point of view of disadvantage, since these openings do not form a shield. As a result, interference signals can penetrate through these openings in the interior of the connector or leave the outside. Thus, the required high-frequency sealing (shielding) is not guaranteed satisfactory.

The DE 20 2006 000 336 U1 relates to a connector with simplified cable management in an insulating housing, wherein the ends of the electrical conductors are already firmly connected to pin contacts or socket contacts. Such an embodiment is needed to form with little effort prefabricated cable by means of correspondingly shaped support members to a connector which can be jacketed by injection molding or surrounded with a separate connector shell. For this purpose, it is provided that the electrical conductors are inserted into half-open chambers along a cylindrical base body, that the main body is surrounded by a fixing sleeve, and that the pin and socket contacts are held at the ends of the electrical conductor in contact openings of an attachable to the fixing sleeve contact carrier ,

The DE 10 2009 010 492 B3 relates to a connector with a cable-laying insert for a simplified arrangement of electrical wires within a connector housing and to ensure a sufficient cable length of the electrical wires with electrical contacts to be attached thereto. Such a cable manager is used to fit into a connector electrical wires with attached thereto electrical contacts fit into it To arrange and fix chambers. Here, the assembly of electrical wires and their associated electrical contacts for use in a connector housing as simple and effective, especially with the inclusion of a local or field mounting to make. This is made possible by the fact that within the connector housing a cable-laying insert is provided in the form of a cable manager for orderly receiving the electrical wires, that on the cable manager an axially aligned length pin, molded, and that within the connector housing a contact carrier for the electrical wires with it attached electrical contacts is provided, wherein at least one electrical wire is arranged in the center of the contact carrier formed from two half-shells.

The WO 2008/117132 A1 relates to a connector having a housing and a terminal carrier housed in the housing, the housing defining a housing surrounding the housing, having a terminal carrier and a passage for receiving a shielded cable for connection to the terminal carrier, the housing being a shielded unitary Construction with two housing parts which are movable relative to each other, so as to bring the housing in a closed state to form a cable channel.

The invention is therefore based on the object to provide a shielded connector and a method for producing such a shielded connector, with which the above-described disadvantages are avoided. In particular, it should be ensured that an over the prior art improved shielding effect is given, at the same time simplifies the production of the connector and the variety of parts to be reduced.

With regard to the construction of the shielded connector, the feature combination of claim 1 is provided to solve the problem. According to the invention, inter alia, the shielding is formed integrally. It is in particular fixed in a press fit on the cable. Thus, the shield case, which is formed in the prior art of the shield sleeve and the two Abschirmgehäushälften replaced by the shield sleeve together with the integrally formed shielding. This has the advantage that the variety of parts is reduced. In addition, the integrally formed shield case preferably has no openings for supplying hot melt adhesive or the like, so that only those openings are present, which are required for insertion of the assembly (shielding sleeve, contact carrier, connecting element and the like). Further openings do not have the shielding housing, so that it completely seals the interior area, in which the end area of the cable and the contact carrier are arranged, in terms of high frequency. If there is another opening for the purpose of supplying filler material (such as hot melt adhesive), this is chosen to be so small that this ensures high-frequency shielding. This ensures in an advantageous manner that in the connector no interference from the outside can penetrate and also prevents high-frequency signals are emitted from the connector to the outside. Furthermore, in particular the integrally formed shielding is fixed in a press fit on the cable, thereby significantly simplifying the assembly. Because with the fixing of the shielding to the cable and the Abschirmgeflecht the cable is contacted at the same time while realizing a strain relief.

Furthermore, the shield has a slot. By means of this slot, it is possible to insert the assembly including the cable into the shield case and to compress the portion of the shield case around the slot to realize the press fit, and then in the area of the compressed slot one end of the cable or a prepared End region of the shielding braid of the cable is arranged.

According to the invention, a crimping sleeve is arranged coaxially surrounding a slot in the shielding housing. With this crimping sleeve, the region of the shielding housing in which the slot is present can be contacted with the Abschirmgeflecht. In addition, the crimp sleeve, if it consists of an electrically conductive material, has the advantage that the unchanged remaining slot of the shield is locked high-frequency. This also applies in the event that it should still be slightly present after compression, the remaining gap closes and the high-frequency shield is further improved. In addition, with the arrangement and the compression of the crimp barrel, a further simplification of the assembly can go hand in hand. Because if the assembly has been inserted into the shield and the slot has not been compressed, the crimping sleeve can be pushed over the not yet compressed slot and both compressed simultaneously.

In a further development of the invention, the shielding braid is located on the inside of the shielding housing and / or on the outside of the shielding housing. As a result, there are several options available to electrically and mechanically connect the shielding braid to the shielding housing. So it is advantageously outside, if in addition the crimp barrel is used. By compressing the crimp sleeve, the shielding braid is thus pressed against the outside of the shielding housing and mechanically fixed in its position and at the same time electrically contacted in this process. Alternatively or additionally, the shielding braid can also rest on the inside of the shielding housing. In this case, for example, the end of the cable is prepared so that the Abschirmgeflecht exposed and folded in the direction of the remaining end of the cable sheath, so that the one end portion of the shield, in particular the area with the slot, there arranged and compressed. Again, but need not, the crimp barrel used. In these two cases, very simple mounting options are available for connecting the shielding braid the shielding housing available. Although less relevant to practice, but also conceivable, the Abschirmgeflecht can be prepared and the assembly process carried out so that the Abschirmgeflecht both inside and outside rests against the shield. In this context, it should be noted that the term "shield braid" all variants of a shielding of a cable, in particular a coaxial cable to understand. This means that the shield, which surrounds the at least one, often even a plurality of inner conductors of the cable and which is arranged coaxially below the cable sheath, can not necessarily be formed as a braid, but also in another form.

In a development of the invention, the shielding housing has at least one projection in the region in which the shielding housing surrounds the shielding sleeve. In a particularly advantageous manner, a plurality of projections distributed over the circumference of the screen housing are provided. Through these projections, which are preferably herausgebildet as ribs, arise during pressing of the shield sleeve defined contact points between the shielding sleeve (more precisely, the surface) and the one-piece shielding housing (more precisely, its inner surface).

In a further development of the invention, a hot melt adhesive is arranged at least on its outer surface and / or in its interior of the screen housing. This achieves a mechanically stable connection between the end of the cable, the contact carrier and the shielding housing (formed by the shielding housing and the shielding sleeve). Filling the cavity within the shield case with a hot melt adhesive creates a media-tight bond which prevents ingress of water and the like between the metallic parts of the shield case into the inner portion of the shielded connector. Here, in particular, a longitudinal water tightness of the connector is given by filling with hot melt adhesive.

In a further development of the invention, at least the shield housing is surrounded by an encapsulation at least on its outer surface. The encapsulation of the connector, a housing is achieved, which extends from the end of the cable (possibly also a piece of the cable across) in the direction of the connecting element for the mating connector (knurled nut, union nut or the like). This can be automated in a simple manner in a plastic injection molding process, wherein the preassembled connector inserted into an injection mold and then the housing is injection molded from plastic. It must be ensured that the connecting element can still rotate freely around the shielding sleeve.

With regard to the method for producing a shielded connector, the combination of features of claim 7 is provided. Among other things, it is provided that an integrally formed shield housing is arranged between an end region of the shielding sleeve and an end region of the cable and fixed in a press fit on the shielding braid of the cable resting against the shielding housing. By integrally formed shielding housing can, as already stated, reduce the variety of parts and simplify assembly, since only a part must be handled during assembly. This one part has the advantage that the prepared assembly, which is arranged at the end of the cable, inserted into the integrally formed shielding housing and this must be compressed to achieve the interference fit. By compressing the shield housing is fixed to the end of the cable and at the same time electrically contacted with the shielding braid of the cable.

Furthermore, it is provided according to the method that a slot is pressed together in the screen housing, so that this area of the screen housing is fixed in position around the end of the cable. Thus, the area of the screen housing, in which the slot is arranged to be set on the outer jacket of the cable, with further measures are required to the Shielding braid to the shielding, in particular its shielding sleeve or the shield housing to contact electrically. Alternatively or additionally, it is provided that the area of the screen housing in which the slot is located also lies in an electrically contacting manner around the shielding braid. Thus, either two steps are required, on the one hand to fix the screen housing mechanically to the cable in its position and to electrically contact the shielding housing with the shielding braid. However, this is preferably carried out in one step. Also alternatively or additionally, it is provided that, after the compression of the slot, the shielding braid is placed around the outside of the shielding housing and then surrounded by a crimping sleeve in a coaxially position-fixing and electrically contacting manner. By means of the crimping sleeve, it is also possible to heat-seal the slot (should it still have a small gap after being pressed together), whereby the shielding braid is also fixed in position on the shielding housing and electrically contacting by means of the crimping sleeve. For this purpose, then the Abschirmgeflecht is coaxial between the interior of the crimp barrel and the exterior of the screen housing in the region of the slot, possibly also across.

• Figur 1 zeigt als Prinzipskizze einen beispielhaften Aufbau eines Steckverbinders 1, der hier als Winkelsteckverbinder ausgeführt ist. Daneben sind auch gerade Ausführungen denkbar. Der Steckverbinder 1 ist am Ende eines Kabels 2 angeordnet, wobei er einen Kontaktträger 3 sowie ein Verbindungselement zu einem hier nicht dargestellten Gegensteckverbinder aufweist. Das Verbindungselement ist als Rändelmutter 4, Überwurfschraube oder dergleichen ausgebildet. Bevorzugt ist der Steckverbinder 1 in Rundbauweise ausgeführt, wobei jedoch auch andere Bauweisen nicht ausgeschlossen sind. Zur Erzielung einer durchgehenden Abschirmung weist der Steckverbinder 1 ein Abschirmgehäuse 5, auf das im Folgenden noch eingegangen wird, auf. Das Kabel 2 ist in diesem Fall ein Datenkabel mit einem oder mehreren elektrischen Leitern, über die Datensignale übertragen werden. Zur Vermeidung von Störeinstrahlungen in das Kabel 2 oder Störabstrahlungen aus dem Kabel 2 weist es eine Abschirmung auf, wobei es grundsätzlich wichtig ist, dass diese Abschirmung mit dem Abschirmgehäuse 5 elektrisch kontaktiert wird. Über das Abschirmgehäuse 5 und das ebenfalls elektrisch damit kontaktierte Verbindungselement, welches auch aus einem elektrisch leitfähigen Material bestehen muss, wird sichergestellt, dass die Abschirmung durchgehend realisiert ist, wenn der Steckverbinder 1 mit einem nicht dargestellten Gegensteckverbinder zusammengebracht wird. Hierbei versteht es sich von selbst, dass der Gegensteckverbinder ebenfalls ein entsprechendes Abschirmgehäuse und ein Datenkabel aufweist, welches seinerseits wieder ein Abschirmgeflecht aufweist. Anstelle des Gegensteckverbinders kann der Steckverbinder 1 auch mit einem zum Beispiel auf einer Platine oder einem nach außen aus einem Gehäuse eines Steuergerätes oder dergleichen herausragenden Gegensteckverbinder in Verbindung gebracht werden.
• In Figur 2 sind einmal in Draufsicht (links) und einmal in Schnittdarstellung (rechts) die Elemente der Baugruppe, die am Ende des Kabels 2 angeordnet sind, gezeigt. Es handelt sich hierbei um die elektrischen Leiter 6, die im Inneren des Kabels 2 angeordnet sind. Mit 7 ist ein Abschirmgeflecht des Kabels 2 bezeichnet. Weiterhin sind ein oder mehrere Kontaktpartner 8 in entsprechenden Kontaktkammern in dem Kontaktträger 3, der aus elektrisch nicht leitfähigem Material (zum Beispiel Kunststoff) besteht, angeordnet. Weiterhin ist eine Schirmhülse, die koaxial den Kontaktträger 3 zumindest teilweise umgibt vorhanden, wobei diese Schirmhülse 9 (analog zum Stand der Technik) Bestandteil des Abschirmgehäuses 5 ist. Für die weitere Herstellung des Steckverbinders 1 wird also die Baugruppe, wie sie in Figur 2 dargestellt ist, vorbereitet. Das bedeutet, dass am Ende der elektrischen Leiter 6 die Kontaktpartner 8 angeordnet, zum Beispiel verlötet, vercrimpt oder dergleichen, werden und die Kontaktpartner 8 in die zugehörigen Kontaktkammern des Kontaktträgers 3 eingesetzt werden. Außerdem wird die Rändelmutter 4 in Wirkverbindung mit der Schirmhülse 9 gebracht, wobei gewährleistet sein muss, dass sich die Rändelmutter 4 noch um die Schirmhülse 9 drehen lässt. Außerdem wird das Kabel 2 endseitig so vorbereitet, dass ein Teil des Abschirmgeflechtes 7 freigelegt und damit für die weitere Kontaktierung zugänglich ist. Bezüglich der Verbindung zwischen den elektrischen Leitern 6 und den Kontaktpartnern 8 ist noch folgendes zu erwähnen. Es ist eine Ausführung denkbar, bei der die elektrischen Leiter 6 des Kabels 2 direkt bis in den Bereich des Kontaktträgers 3 geführt sind, wo sie mit dem zugehörigen Kontaktpartner 8 verbunden sind. Alternativ dazu ist es denkbar, dass die elektrischen Leiter 6 kurz hinter dem Ende des Kabels 2 enden und dort weitere elektrische Leiter angeordnet sind, die ihrerseits zu den Kontaktpartnern 8 führen. In dieser Variante ist es auch denkbar, dass die Kontaktpartner 8 so ausgeführt sind, dass sie einerseits die Kontaktierung in Richtung der Stirnseite des Kontaktträgers 3 ermöglichen und in die andere Richtung einstückig bis zu dem Ende des elektrischen Leiters 6 des Kabels 2 führen und dort kontaktiert werden.
• In Figur 3 ist der nächste Montageschritt gezeigt, wobei die gemäß Figur 2 vorbereitete Baugruppe in ein einstückig ausgebildetes Schirmgehäuse 10 eingesetzt wird. Dabei ist erkennbar, dass das Abschirmgeflecht 7 so vorbereitet wurde, dass es mit dem (bei Betrachtung der Figur 3) nach unten weisenden Ende des Schirmgehäuses 10 in Wirkverbindung, vor allen Dingen elektrisch kontaktierend, gebracht werden kann. Gleichzeitig wird das Schirmgehäuse 10 mit dem einen Ende der Schirmhülse 9 in Verbindung gebracht, wobei die beiden Teile, nämlich die Schirmhülse 9 und das Schirmgehäuse 10, das komplette Abschirmgehäuse 5 (siehe Figur 1) bilden. Durch das Zusammenspiel von Schirmhülse 9 und einstückig ausgebildetem Schirmgehäuse 10, in deren Inneren die vorbereitete Baugruppe sitzt, wird eine weitestgehend vollständige Abschirmung erzielt. Diese Abschirmung wird vor allen Dingen deshalb erzielt, weil das eine Ende des einstückig ausgebildeten Schirmgehäuses 10 mit dem Abschirmgeflecht 7 verbunden wird, wobei das andere Ende des einstückig ausgebildeten Schirmgehäuses 10 mit dem einen Ende der Schirmhülse 9 verbunden ist. Das andere Ende der Schirmhülse 9 weist in Richtung des stirnseitigen Endes des Kontaktträgers 3, reicht aber nicht bis an die Stirnseite heran. Um auch den Bereich des Kontaktträgers 3, der nicht von der Schirmhülse 9 umgeben ist, hochfrequenzmäßig abzuschirmen, ist das Verbindungselement, hier insbesondere die Rändelmutter 4, vorhanden, das den Kontaktträger 3 koaxial unter Bildung eines Spaltes umgibt. Der Spalt ist dazu geeignet und ausgebildet, ein in Verbindung mit dem Verbindungselement (insbesondere der Rändelmutter 4) in Wirkverbindung zu bringendes korrespondierendes Verbindungselement des Gegensteckverbinders zu bringen. Dadurch ist die vollständige Abschirmung einer solchen zusammengesetzten Steckverbindung, bestehend aus Steckverbinder 1 und Gegensteckverbinder, realisiert. Weiterhin ist in Figur 3 noch eine das Kabel 2 koaxial umgebende Crimphülse 11 gezeigt, die vorhanden sein kann, aber nicht muss. Die Crimphülse 11 ist in Figur 3 in ihrer Vormontageposition gezeigt. Auf ihre Montage und Endlage wird noch einzugehen sein.
• In Figur 4 ist das einstückig ausgebildete Schirmgehäuse 10 noch einmal in seiner Gesamtheit und im Detail (Einzelheit D) gezeigt. Hierbei ist erkennbar, dass das Schirmgehäuse 10 eine Öffnung 12 aufweist, die dazu geeignet und ausgebildet ist, die gemäß Figur 2 vorbereitete Baugruppe, insbesondere das eine Ende der Schirmhülse 9, aufzunehmen. Weiterhin ist ein Schlitz 13 vorhanden, wobei dieser in dem der Öffnung 12 abgewandtem Teil des Schirmgehäuses 10 angeordnet ist. Die Breite des Schlitzes 13 ist dabei so gewählt, dass die gemäß Figur 2 vorbereitete Baugruppe, insbesondere der Endbereich des Kabels 2 (oder alternativ der von dem Endbereich des Kabels 2 ausgehende Bereich mit den elektrischen Leitern 6) durch den Schlitz 13 eingeführt werden kann. Weiterhin ist in Figur 4 erkennbar, dass derjenige Innenbereich des Schirmgehäuses 10, der in Wirkverbindung mit dem Endbereich der Schirmhülse 9 gebracht werden soll, zumindest einen Vorsprung 14, vorzugsweise mehrere über den Umfang verteilte Vorsprünge 14, aufweist. Durch diese Vorsprünge 14, insbesondere als Rippen ausgebildet, entstehen beim Einpressen der Schirmhülse 9 in den zugehörigen Endbereich des Schirmgehäuses 10 auf der Seite, wo sich die Öffnung 12 befindet, definierte Kontaktstellen zwischen der Oberfläche der Schirmhülse 9 und dem Innenbereich des Schirmgehäuses 10. Dadurch ist eine hohe Kontaktsicherheit zur Realisierung der durchgehenden Abschirmung gewährleistet.
• Figur 5 zeigt eine Ausführung des Steckverbinders 1 im Schnitt, bei dem die gemäß Figur 2 vorbereitete Baugruppe in das Schirmgehäuse 10 eingesetzt worden ist, wobei die Schirmhülse 9 in das Schirmgehäuse 10 lagefixiert angeordnet, zum Beispiel verpresst, wurde. In dem bei Betrachtung der Figur 5 unteren Teil ist das Schirmgehäuse 10 in einem Presssitz an dem Kabel 2, genauer an dem Abschirmgeflecht 7, das ein Bestandteil des Kabels 2 ist, festgelegt. In dieser Variante befindet sich das Abschirmgeflecht 7 auf der äußeren Oberfläche des Schirmgehäuses 10 und dem Innenbereich der Crimphülse 11. Das bedeutet, dass hier die Crimphülse 11 dafür eingesetzt wird, einerseits den Schlitz 13 nach seinem Verpressen (sofern noch ein Spalt verblieben ist) zusätzlich abzudichten und andererseits das Abschirmgeflecht 7 auf der Oberfläche des Schirmgehäuses 10 in seiner Lage zu fixieren und gleichzeitig elektrisch zu kontaktieren. Eine alternative Variante wäre es, das Ende des Kabels 2 bis in Richtung des unteren Endes des Schirmgehäuses 10 in dieses hineinzuführen, sodass dann auch ein Endbereich des Kabelmantels des Kabels 2 bis in das Schirmgehäuse 10 hineinragt. Diese Variante hat den Vorteil, dass dadurch gleichzeitig auch eine Zugentlastung gegeben ist.

An embodiment of a shielded connector and its method of manufacture is described below and explained with reference to the figures.

• FIG. 1 shows a schematic diagram of an exemplary structure of a connector 1, which is designed here as an angle connector. In addition, straight versions are conceivable. The connector 1 is arranged at the end of a cable 2, wherein it has a contact carrier 3 and a connecting element to a mating connector, not shown here. The connecting element is designed as a knurled nut 4, cap screw or the like. Preferably, the connector 1 is designed in a round design, but other designs are not excluded. To achieve a continuous shielding, the connector 1 has a shielding housing 5, which will be discussed in more detail below will be on. The cable 2 in this case is a data cable with one or more electrical conductors via which data signals are transmitted. To avoid interference in the cable 2 or noise emissions from the cable 2, it has a shield, and it is fundamentally important that this shield is electrically contacted with the shield 5. About the shield 5 and the also electrically contacted therewith connecting element, which must also consist of an electrically conductive material, it is ensured that the shield is realized throughout, when the connector 1 is brought together with a mating connector, not shown. It goes without saying that the mating connector also has a corresponding shielding and a data cable, which in turn has a shielding braid. Instead of the mating connector, the connector 1 may also be connected to a mating connector protruding, for example, on a board or outwardly from a housing of a controller or the like.
• In FIG. 2 are once in plan view (left) and once in section (right), the elements of the assembly, which are arranged at the end of the cable 2 shown. These are the electrical conductors 6, which are arranged in the interior of the cable 2. 7 denotes a shielding braid of the cable 2. Furthermore, one or more contact partners 8 in corresponding contact chambers in the contact carrier 3, which consists of electrically non-conductive material (for example, plastic) arranged. Furthermore, a shielding sleeve coaxially surrounds the contact carrier 3 is at least partially present, this shielding sleeve 9 (analogously to the prior art) being part of the shielding housing 5. For the further production of the connector 1 so the assembly, as in FIG. 2 is presented, prepared. This means that arranged at the end of the electrical conductor 6, the contact partners 8, for example, soldered, crimped or the like, and the contact partners 8 are inserted into the associated contact chambers of the contact carrier 3. In addition, the knurled nut 4 is in operative connection with the shielding sleeve. 9 brought, it must be ensured that the knurled nut 4 can still rotate around the shielding sleeve 9. In addition, the cable 2 is the end prepared so that a portion of Abschirmgeflechtes 7 is exposed and thus accessible for further contacting. With regard to the connection between the electrical conductors 6 and the contact partners 8, the following should be mentioned. An embodiment is conceivable in which the electrical conductors 6 of the cable 2 are guided directly into the region of the contact carrier 3, where they are connected to the associated contact partner 8. Alternatively, it is conceivable that the electrical conductors 6 end just behind the end of the cable 2 and there are further electrical conductors are arranged, which in turn lead to the contact partners 8. In this variant, it is also conceivable that the contact partners 8 are designed so that on the one hand enable the contacting in the direction of the end face of the contact carrier 3 and in the other direction in one piece lead to the end of the electrical conductor 6 of the cable 2 and contacted there become.
• In FIG. 3 the next assembly step is shown, wherein the according to FIG. 2 prepared assembly is inserted into an integrally formed shielding housing 10. It can be seen that the Abschirmgeflecht 7 was prepared so that it with the (when viewing the FIG. 3 ) downwardly facing end of the screen housing 10 in operative connection, in particular electrically contacting, can be brought. At the same time, the shield housing 10 is brought into contact with one end of the shielding sleeve 9, the two parts, namely the shielding sleeve 9 and the shielding housing 10, the complete shielding housing 5 (see FIG. 1 ) form. Through the interaction of shielding sleeve 9 and integrally formed shielding housing 10, inside which the prepared assembly sits, a largely complete shielding is achieved. This shielding is achieved above all because the one end of the integrally formed shielding housing 10 is connected to the shielding braid 7, wherein the other end of the integrally formed shielding housing 10 is connected to the one end of the shielding sleeve 9. The other end of the shielding sleeve 9 points in the direction of the front end of the Contact carrier 3, but does not reach to the front. In order to shield the area of the contact carrier 3, which is not surrounded by the shielding sleeve 9, high frequency, the connecting element, in particular the knurled nut 4, is present, which surrounds the contact carrier 3 coaxially to form a gap. The gap is suitable and designed to bring in conjunction with the connecting element (in particular the knurled nut 4) to be brought into operative connection corresponding connecting element of the mating connector. As a result, the complete shielding of such a composite connector, consisting of connector 1 and mating connector, realized. Furthermore, in FIG. 3 nor a crimp sleeve 11 coaxial surrounding the cable 2 shown, which may be present, but need not. The crimp sleeve 11 is in FIG. 3 shown in their pre-assembly position. On their assembly and final position will be yet to enter.
• In FIG. 4 the integrally formed shielding housing 10 is shown once more in its entirety and in detail (detail D). It can be seen here that the shielding housing 10 has an opening 12 which is suitable and designed in accordance with FIG FIG. 2 prepared assembly, in particular the one end of the shielding sleeve 9, record. Furthermore, a slot 13 is present, wherein this is arranged in the opening 12 facing away from the part of the screen housing 10. The width of the slot 13 is chosen so that the according to FIG. 2 prepared assembly, in particular the end portion of the cable 2 (or alternatively, the outgoing from the end portion of the cable 2 region with the electrical conductors 6) can be inserted through the slot 13. Furthermore, in FIG. 4 it can be seen that that inner region of the screen housing 10 which is to be brought into operative connection with the end region of the shielding sleeve 9 has at least one projection 14, preferably a plurality of projections 14 distributed over the circumference. By these projections 14, in particular formed as ribs, formed when pressing the shield sleeve 9 in the associated end portion of the screen housing 10 on the side where the opening 12 is defined contact points between the surface of the shielding sleeve 9 and the inner region of the screen housing 10. This ensures a high contact reliability for the realization of the continuous shielding.
• FIG. 5 shows an embodiment of the connector 1 in section, in which the according to FIG. 2 prepared assembly has been inserted into the shield housing 10, wherein the shielding sleeve 9 arranged fixed in position in the shield housing 10, for example, pressed, was. In the consideration of the FIG. 5 lower part, the shield housing 10 is press-fitted to the cable 2, more specifically to the shielding braid 7, which is a component of the cable 2. In this variant, the shielding braid 7 is located on the outer surface of the shielding housing 10 and the inner region of the crimping sleeve 11. This means that here the crimping sleeve 11 is used, on the one hand the slot 13 after its compression (if there is still a gap left) in addition seal and on the other hand to fix the Abschirmgeflecht 7 on the surface of the screen housing 10 in position and at the same time to contact electrically. An alternative variant would be to lead the end of the cable 2 into the direction of the lower end of the screen housing 10, so that an end region of the cable sheath of the cable 2 projects into the shield housing 10. This variant has the advantage that at the same time a strain relief is given.

In the variant that in FIG. 5 is shown, in which not the cable 2 directly, but whose Abschirmgeflecht 7 is fixed in a press-fit on the screen housing 10, it is still necessary to take additional measures to achieve a mechanical stability of the subsequent connector 1. This mechanical stability can be achieved in various ways. So is in FIG. 6 shown that the inner region of the screen housing 10, over to a piece of the end portion of the cable 2, is provided with a hot melt adhesive 15. Such a hotmelt adhesive 15 has the advantage that on the one hand it fills the remaining cavities in the screen housing 10 and thus a media-tight Achieved composite, which prevents the entry of water, dirt particles and the like between the metallic parts in the inner region of the connector 1. In addition, not only the longitudinal water-tightness is achieved by the hot-melt adhesive 15, which is also present in the region of the Abschirmgeflechtes 7 and the end portion of the cable 2 (more precisely its cable sheath), but also produces a mechanical, preferably first stability. As a rule, the shielding braid 7 in the form, as it is in FIG. 5 is shown, not yet have the required for the operation of the connector 1 mechanical stability. This stability is only by the hot melt adhesive 5, as in FIG. 6 shown achieved. For the case that with the hot melt adhesive 15 according to FIG. 6 Achieved mechanical stability is not sufficient or the hot melt adhesive 15 does not pass over the end portion of the cable 2, may alternatively or additionally according to FIG. 7 an encapsulation 16 are provided. Either this extrusion coating 16 is designed so that it extends into the interior of the screen housing 10 and this fills and at the same time forms an external housing of the connector 1. In such a case, the hot melt adhesive 15 may be dispensable. However, if the hot-melt adhesive 15 has been incorporated to realize the longitudinal water-tightness, it can additionally be surrounded with the encapsulation 16 in a particularly advantageous manner, because with the hot-melt adhesive 15 (or a comparable material which achieves a media-tight bond between the materials involved) the longitudinal water-tightness is reached and the mechanical stability is achieved only by the encapsulation 16 or increased in conjunction with the hot melt adhesive 15.

In the FIGS. 8 to 13 a further inventive design of the connector 1 according to the invention is shown, whose essential elements, its function and its production is based on the connector 1, in the FIGS. 1 to 7 is shown.

In FIG. 8 It can be seen that the shield housing has an opening 17 in its upper cylindrical Bererich on its one end face, which faces away from the opening in the direction of the mating face. This opening 17 is arranged in a slightly convex elevation in the shield housing 10. Through this opening 17 can in the interior of the screen housing 10 (and possibly also in the interior of the shielding sleeve 9) filler, such as a hot melt adhesive or the like, are filled. The diameter of the opening 17 is chosen so that on the one hand it is large enough to convey the desired amount of filler in a reasonable period of time into the interior while ensuring that a high-frequency seal is ensured. The diameter of the opening 17 depends on the total diameter of the cylindrical part of the screen housing 10 and is significantly smaller than this. Furthermore, the shield housing 10 has two opposite shoulders 18, which are present below the longitudinal axis of the cylindrical part of the screen housing 10. Furthermore, a latching lug 19 is still present in the shield housing 10, which is arranged in the region of an opening 20. The detent 19 causes the shield housing 10 latching with the shielding sleeve 9 (see FIG. 9 ) can be connected. For this purpose, the shielding sleeve 9 has a recess 21, wherein the edges of the recess 21 come to rest on the shoulders 18 of the screen housing 10 when the shielding sleeve 9 is inserted coaxially into the shielding housing 10. In this case, the latching lug 19 and an opening 22 in the shielding sleeve 9 come into operative connection, whereby the shielding sleeve 9 is fixed detent on the screen housing 10. This mounting condition is in the FIGS. 10 and 11 shown. While in the FIG. 10 is shown that the interior of the shielding sleeve 9 and the screen housing 10 are not yet filled with filler (but can be filled) is in the FIG. 11 , Left view, shown that the interior and / or the exterior of the shield sleeve 9 and shield housing 10 are filled with the encapsulation 16 and / or surrounded. In FIG. 11 For example, in the right-hand illustration, a ring 23 is shown that may or may not be present. This ring 23 may also be formed by a hot melt adhesive, an encapsulation or the like and surrounds the elements lying in it such as the contact carrier 3, the contact partners 8 and the like to realize a longitudinal water tightness. In FIG. 12 Finally, the finished connector 1 is shown in section, wherein the encapsulation 16 is surrounded with another, a housing forming encapsulation 24. The hot melt adhesive 15, the encapsulation 16 and the encapsulation 24 can be produced in successive process steps and consist of the same or different materials. It should be noted that not all three materials must be used, but that it may be sufficient to provide only the encapsulation 16 forming the housing or the encapsulation 24 (for example, then without the hot-melt adhesive 15).

FIG. 13 shows again in detail the configuration of the screen housing 10 according to FIG. 4 or according to FIG. 8 , In this case, the shield housing 10 either has no opening or just the opening 17. In both variants, a shoulder 18 is provided for fixing the position of the shielding sleeve 9 in the shield housing 10, with two paragraphs 18 are opposite lying in the shield housing 10. The plane in which the two paragraphs 18 are located, is located outside a plane that runs through the longitudinal axis of the cylindrical upper part of the screen housing 10 and the shielding sleeve 9. This ensures that the shielding sleeve 9 comes with its longitudinal edges of the recess 21 at the two paragraphs 18 to the plant to be arranged against rotation in the shield housing. In addition, other shapes are conceivable with which the shielding sleeve is mounted against rotation in the shield housing 10. Finally, in FIG. 13 To recognize the detail that the shield housing 10 has a surface elevation in its downwardly facing end, ie in the region of the slot 13 has. By this surface design, preferably in downwardly facing axial direction elevations and depressions (alternately) ensures that the shielding braid 7, a larger surface and thus a greater contact safety is realized.

FIG. 14 shows in the upper part of a finished connector 1 in a three-dimensional view. In the lower left illustration, the connector 1 is shown with a view of its mating face and in the lower right view it can be seen again in a sectional view.

With regard to the connection of the braided shield 7 to the cylindrical part of the screen housing facing downwards when the figures are viewed, the following is still to be stated. On the one hand, the shielding braid 7 can be arranged inside the cylindrical part of the screen housing 10. In this case, it is conceivable that the electrical conductors 6 are surrounded by a common jacket, which in turn is surrounded by the shielding braid 7. In this case, the Abschirmgeflecht 7 can be supported either on the electrical conductors 6 (after the jacket has been removed) and / or on the jacket of the cable 2, when the cylindrical part of the screen housing 10 is disposed above and then press-fitted. This assumes that the screen housing 10 is designed and made of such a material that it can be compressed, whereby the slot 13 is reduced in size. Additionally or alternatively, it is conceivable to arrange the entire shielding braid 7 on the outer surface of the downwardly facing cylindrical end region of the shielding housing 10 or partly inside and partly outside there. Particularly preferred is the arrangement of the Abschirmgeflechtes 7, more precisely its end, on the outer surface of the lower end portion of the screen housing 10. Here, the shield housing 10 is designed and made of such a material, that when the Abschirmgeflecht in a press fit on the screen housing 10, this is not deformed during pressing of the Abschirmgeflechtes or when pushing and crimping crimped the sleeve 11, (or only slightly deformed), so that the shield housing 10 provides a stable reaction force to realize the interference fit. Alternatively or in addition to the interference fit, it is conceivable to fix the shielding braid 7 there by other methods and / or means inside and / or outside of the shielding housing 10 and to contact it electrically.

Here, for example, welding, caulking, bonding (with an electrically conductive adhesive) or the like into consideration.

LIST OF REFERENCE NUMBERS

1. 1. Connector
2. 2nd cable
3. 3. Contact carrier
4. 4. knurled nut
5. 5. Shielding housing
6. 6. Electrical conductors
7. 7. Shielding braid
8. 8. Contact partner
9. 9. Screen sleeve
10. 10. Screen housing
11. 11. Crimp barrel
12. 12. opening
13. 13th slot
14. 14th lead
15. 15. hot melt adhesive
16. 16. overmolding
17. 17th opening
18. 18th paragraph
19. 19. latch
20. 20th opening
21. 21. recess
22. 22. opening
23. 23. Ring
24. 24. encapsulation
25. 25. Seal

Claims (7)

1. Shielded plug connector (1) comprising an assembly that comprises a contact carrier (3) that is encompassed by a shielding sleeve (9) and receives a contact partner (8) that is arranged at the end of electrical conductors (6) of a cable (2) that comprises a shield braid (7), wherein a shield casing (5), which is formed by the shielding sleeve (9) and a shielding housing (10) that extends out of one end of the cable, extends from the end of the cable (2) as far as the contact carrier (3), wherein the shielding housing (10) is embodied in one piece and comprises a slit (13), characterized in that a crimping sleeve (11) is arranged in the region of the slit (13) of the shielding housing (10) in a coaxially encompassing manner.
2. Shielded plug connector (1) according to Claim 1, characterized in that the shield braid (7) lies inside against the shielding housing (10) and/or outside against the shield casing (15).
3. Shielded plug connector (1) according to Claim 1 or 2, characterized in that the shielding housing (10) comprises at last one protrusion (14) in the region in which the shielding housing (10) encompasses the shielding sleeve (9).
4. Shielded plug connector (1) according to Claim 3, characterized in that multiple protrusions (14) that are distributed over the periphery of the shielding housing (10) are provided.
5. Shielded plug connector (1) according to any one of the preceding claims, characterized in that a hot melt adhesive (15) is arranged at least on the outer surface of the shielding housing (10) and/or in the inside of said shielding housing.
6. Shielded plug connector (1) according to any one of the preceding claims, characterized in that at least the shielding housing (10) is encompassed at least on its outer surface by an injection molding (16).
7. Method for producing a shielded plug connector (1) comprising an assembly that comprises a contact carrier (3) that is encompassed by a shielding sleeve (9) and receives a contact partner (8) that is arranged at the end of electrical conductors (6) of a cable (2) that comprises a shield braid (7), wherein a shield casing (5), which is formed by the shielding sleeve (9) and a shielding housing (10) that extends out of one end of the cable (2), extends from the end of the cable (2) as far as the contact carrier (3), wherein a one-piece shielding housing (10) is arranged between an end region of the shielding sleeve (9) and an end region of the cable (2) and is fixed on the shield braid (7) of the cable (2), said shield braid lying against the inside and/or the outside on the shielding housing (10), wherein a slit (13) in the shielding housing (10) is compressed so that this region of the shielding housing (10) is fixed in position around the end of the cable (2) and/or lies in an electrically contacting manner around the shield braid (7), characterized in that following the compression of the slit (13) the shield braid (7) lies externally around the shielding housing (10) and subsequently is coaxially fixed in position and encompassed in an electrically contacting manner by a crimping sleeve (11).

Images