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EP0319459B1 - Connection for a coaxial cable, in particular for an antenna - Google Patents

Connection for a coaxial cable, in particular for an antenna Download PDF

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Publication number
EP0319459B1
EP0319459B1 EP88730261A EP88730261A EP0319459B1 EP 0319459 B1 EP0319459 B1 EP 0319459B1 EP 88730261 A EP88730261 A EP 88730261A EP 88730261 A EP88730261 A EP 88730261A EP 0319459 B1 EP0319459 B1 EP 0319459B1
Authority
EP
European Patent Office
Prior art keywords
spring
connection according
plug
guide cylinder
connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88730261A
Other languages
German (de)
French (fr)
Other versions
EP0319459A3 (en
EP0319459A2 (en
Inventor
Dieter Reinsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ROBERT KARST GMBH & CO. KG.
Original Assignee
Robert Karst & Co Kg GmbH
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Filing date
Publication date
Application filed by Robert Karst & Co Kg GmbH filed Critical Robert Karst & Co Kg GmbH
Publication of EP0319459A2 publication Critical patent/EP0319459A2/en
Publication of EP0319459A3 publication Critical patent/EP0319459A3/en
Application granted granted Critical
Publication of EP0319459B1 publication Critical patent/EP0319459B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518Connection to outer conductor by crimping or by crimping ferrule

Definitions

  • the invention relates to a connector for coaxial conductors, in particular for antennas, according to the preamble of the main claim.
  • axial plug connections are generally known. Lately, manufacturers have started to provide new, flatter angled connectors. These new plug connections use a socket connected to the car radio, which consists of a cylindrical insulating piece with an outer metal shell and a sleeve-like central inner conductor. The metal shell is provided with a bead.
  • the associated plug according to the prior art has a central pin which is inserted into the sleeve-like inner conductor of the socket becomes.
  • Three spring arms are pushed over the bead of the outer metal shell of the socket and thus form the ground connection, the spring arms engaging behind the bead also serving to mechanically fix the plug.
  • this known connector does not adequately meet the requirements. Due to the vibrations in the car, the spring arms of the connector move on the metal shell of the socket, so that the electrical connection can be faulty. The same applies to the mechanical strength. Otherwise, the connector is not adequately shielded against interference. Furthermore, the car radio manufacturers are beginning to design the car radios in such a way that they can be easily removed from their holder or pushed back in, so that the driver has the opportunity to take the car radio with them when leaving the car. This means that the plug frequency is greatly increased , With a plug connection according to the prior art, the mechanical strength and the electrical contact are not ensured after many plugging operations.
  • a plug connection is known in which the plug is pot-shaped with a central pin, an inward projection being provided at the open end of the plug.
  • the adapter piece forming the socket has a metal jacket with a shoulder on which the projection bears when it is plugged together.
  • the invention is therefore based on the object to provide a plug-in connection for coaxial conductors, in particular for antennas, in an angular form, which ensures simple plugging in and also with frequent plug-in connections and strong vibrations, a secure electrical connection and good mechanical strength, while also being sufficiently resistant to harmful interference radiation should be secured.
  • the plug has a guide cylinder which is designed as an overlapping resilient sleeve, which is covered at its end opposite the open end with a shield formed as a separate part, the socket is elastic and reliable in operation even when the feed is not straight during the plugging process and held with multiple connections, whereby the large spring travel predetermined by the overlapping sleeve can be maintained by the positive connection between the sleeve and the shielding plate. Due to the overlapping design and the shielding plate, the connector is largely sealed against high-frequency or other harmful interference.
  • a further advantageous embodiment consists in that the plug has a plurality of spring struts with locking elements Clasp is encompassed, one type of struts latching with the plug and the other type of struts being latched to the chassis of the car radio. In this way, a floating suspension of the connector is made available, which ensures the establishment of the connection reliably even with manufacturing tolerances and multiple connections.
  • an advantageous embodiment of the bushing is that the outer metal sheath somewhat overlaps the inner insulating piece at the end facing the bushing, i.e. something protrudes over the end face of the insulating piece, since in this way an additional electrical contact with the axial spring is made.
  • the plug 1 of the connector consists of a guide cylinder 2, a shield plate 3 covering the guide cylinder 2 at the lower end, an axial disc-shaped spring 4, a central pin 6 provided with a connecting lug 5, which is fixed between two insulating pieces 7, 8 made of plastic .
  • the guide cylinder 2 is designed as a sleeve made of metal, the ends of which are not connected to one another and overlap resiliently in accordance with the overlap region 9 according to FIG. 1.
  • Tabs 10 are formed on the lower end of the guide cylinder 2, which are bent over and fix the shielding plate 3. In the immediate vicinity of the open end of the cylinder 2, its circumference is provided with an inward throat 11. Of course, this throat 11 can also be formed as a bead formed on the inner circumference of the cylinder 2.
  • the axial spring 4 is designed as a disc, the circumference of which is cut at three points in the exemplary embodiment, so that there are three tabs 12 which are bent up under tension.
  • the shielding plate 3 and the spring 4 have lateral guide rails 14, 15 which are guided outwards through a recess in the guide cylinder 2 perpendicular to the latter.
  • 3 crimp extensions 16 are arranged laterally on the guide rail 14 of the shielding plate.
  • the coaxial conductor, not shown, is pushed in the stripped state between the guide rails 14, 15 and the crimp extensions are bent vertically so that they form the lateral boundary.
  • the insulating pieces 7, 8 also each have a lateral extension 17, 18 arranged between the guide rails 14, 15. A cavity is provided between the shoulders 17, 18 of the insulating pieces 7, 8, in which the connecting lug of the pin 6 ends.
  • the stripped inner conductor of the coaxial conductor is pushed into the cavity in such a way that it forms an electrical connection with the inner conductor 5.
  • the cavity is open on the side, so that the terminal lug 5 is accessible from the outside. This enables the terminal lug 5 to be soldered to the inner conductor of the coaxial cable, if desired.
  • the crimp extensions 16 can also be soldered to the lateral guide rail 15 and the ground conductor of the coaxial cable.
  • a clip 19 For the attachment of the plug to the chassis of the car radio, a clip 19 according to FIGS. 3 and 4 is provided, which is spider-like, ie has a plurality of spring struts 21, 22 which are molded onto a central part 20.
  • the struts 21 are inclined inward while the Struts 22 have an outward bias.
  • Both types of struts 21, 22 are provided at their ends with bent locking lugs 23, 24.
  • FIG. 5 The attachment of the plug 1 by means of the clip 19 to a chassis 25 of the car radio is shown in FIG. 5.
  • the connector 1 is arranged between the inwardly bent struts 21 of the bracket 19 in such a way that the locking lugs 23 engage over the edge of the guide cylinder 2.
  • recesses are arranged and the outwardly biased struts 22 are compressed and the detents 24 are inserted into the recesses so that they engage behind the chassis 25 under tension after releasing the struts 22.
  • the socket 26 of the connector is indicated schematically, which is firmly connected to the radio itself.
  • the bushing 26 has an outer metal jacket which is provided with a bead 27. After inserting the socket 26 into the plug 1, the throat 11 engages behind the bead 27.
  • the length of the bead 27 is somewhat larger than the distance between the throat 11 and the bent-up tabs 12 of the axial spring 4 in the rest position, so that in the inserted position State of the bush by the spring 4 an axial force acts on the bush 26. In this way, a secure electrical connection between socket 26 and connector 2 and a secure mechanical fixing is ensured.
  • the socket 26 is designed in such a way that the metal sleeve projects somewhat beyond the end face of the inner insulating piece facing the plug, as indicated in FIG. 5, so that there is also an electrical connection between the metal sleeve and the axial spring 4.
  • FIG. 6 shows a further exemplary embodiment of the plug connection according to the invention, the connector 1 being fastened to a mounting or chassis part 25 with a bracket 28, similarly to FIG. 5.
  • the plug 1 is of a simpler design in this exemplary embodiment, since the spring 4 is omitted, so that the electrical contact as an earth contact occurs only via the resilient sleeve of the guide cylinder 2.
  • the central pin 6 provided with a connecting lug 5 is fixed between two insulating pieces 7, 8, which are connected with a push-button connection, and contrary to FIG. 2, in which the lower insulating piece 8 engages in the interior of the pin 6, accordingly Fig. 6, the insulating piece 8 has a recess 9, which in turn engages the pin 6.
  • the bracket 28 differs from the bracket of FIGS. 3 and 4 in that it is only the Has struts 22 which have an outward bias.
  • the spring struts 22 start from a central part 29, the central part 29 being designed as a plate in which recesses 30 are provided.
  • the tabs 10 formed on the guide cylinder 2 pass through the recesses 30 below the shielding plate 3 and are then bent over.
  • the recesses 30 are designed as elongated holes in such a way that the bent tabs have a certain amount of play.
  • a locking ring 31 is provided, which is inserted from the insertion side of the socket 26 into the opening for the plug 2 in the mounting part 25 and snap lugs 32 which engage under the mounting part 25.
  • the locking ring 31 is provided with a continuous flange 33 or with projections which press on the locking elements 24 and thus fix the struts 28. In this way, a floating, i.e. achieved elastic storage of the connector 1, the connection between the struts 28 and the mounting part 25 does not come off despite movement.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Description

Die Erfindung betrifft eine Steckverbindung für Koaxialleiter, insbesondere für Antennen, nach dem Oberbegriff des Hauptanspruchs.The invention relates to a connector for coaxial conductors, in particular for antennas, according to the preamble of the main claim.

Für die Verbindung von Autoradios mit dem Koaxialleiter der Autoantenne sind axiale Steckerverbindungen allgemein bekannt. In letzter Zeit sind die Hersteller dazu übergegangen, neue flachere Winkelsteckverbindungen vorzusehen. Bei diesen neuen Steckverbindungen wird eine mit dem Autoradio verbundene Buchse verwendet, die aus einem zylinderförmigen Isolierstück mit einer äußeren Metallhülle und einem hülsenartigen mittigen Innenleiter besteht. Die Metallhülle ist dabei mit einem Wulst versehen. Der dazugehörige Stecker gemäß dem Stand der Technik weist einen mittigen Stift auf, der in den hülsenartigen Innenleiter der Buchse eingesteckt wird. Drei Federarme werden über den Wulst der äußeren Metallhülle der Buchse geschoben und bilden somit die Masseverbindung, wobei die den Wulst hintergreifenden Federarme außerdem zur mechanischen Festlegung des Steckers dienen.For the connection of car radios to the coaxial conductor of the car antenna, axial plug connections are generally known. Lately, manufacturers have started to provide new, flatter angled connectors. These new plug connections use a socket connected to the car radio, which consists of a cylindrical insulating piece with an outer metal shell and a sleeve-like central inner conductor. The metal shell is provided with a bead. The associated plug according to the prior art has a central pin which is inserted into the sleeve-like inner conductor of the socket becomes. Three spring arms are pushed over the bead of the outer metal shell of the socket and thus form the ground connection, the spring arms engaging behind the bead also serving to mechanically fix the plug.

Es hat sich aber gezeigt, daß diese bekannte Steckverbindung den Anforderungen nicht ausreichend gerecht wird. Durch die Erschütterungen im Auto verschieben sich die Federarme des Steckers auf der Metallhülle der Buchse, so daß die elektrische Verbindung fehlerhaft werden kann. Entsprechendes gilt für die mechanische Festigkeit. Im übrigen ist die Steckverbindung nicht ausreichend gegen Störstrahlung abgeschirmt. Weiterhin gehen die Autoradiohersteller dazu über, die Autoradios derart zu konstruieren, daß sie leicht aus ihrer Halterung herausgenommen bzw. wieder eingeschoben werden können, damit der Fahrer die Möglichkeit hat, das Autoradio beim Verlassen des Autos mitzunehmen Das bedeutet, daß die Steckhäufigkeit stark erhöht wird, wobei bei einer Steckverbindung gemäß dem Stand der Technik die mechanische Festigkeit und die elektrische Kontaktgabe nach vielen Steckvorgängen nicht sichergestellt sind.However, it has been shown that this known connector does not adequately meet the requirements. Due to the vibrations in the car, the spring arms of the connector move on the metal shell of the socket, so that the electrical connection can be faulty. The same applies to the mechanical strength. Otherwise, the connector is not adequately shielded against interference. Furthermore, the car radio manufacturers are beginning to design the car radios in such a way that they can be easily removed from their holder or pushed back in, so that the driver has the opportunity to take the car radio with them when leaving the car. This means that the plug frequency is greatly increased , With a plug connection according to the prior art, the mechanical strength and the electrical contact are not ensured after many plugging operations.

Aus der DE-U-86 17 227 ist eine Steckverbindung bekannt, bei der der Stecker topfartig mit einem mittigen Stift ausgebildet ist, wobei am offenen Ende des Steckers ein nach innen gerichteter Vorsprung vorgesehen ist. Das die Buchse bildende Adapterstück hat einen Metallmantel mit einem Absatz, an den sich im zusammengesteckten Zustand der Vorsprung anlegt. Bei dieser bekannten Steckverbindung ist ein Zusammenstecken bei nicht gerader Führung der Steckteile schwierig und bei Mehrfachstecken können Abnutzungserscheinungen auftreten.From DE-U-86 17 227 a plug connection is known in which the plug is pot-shaped with a central pin, an inward projection being provided at the open end of the plug. The adapter piece forming the socket has a metal jacket with a shoulder on which the projection bears when it is plugged together. In this known plug connection, plugging together when the plug parts are not guided in a straight line is difficult and Signs of wear can appear multiple times.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Steckverbindung für Koaxialleiter, insbesondere für Antennen, in Winkelform zu schaffen, die ein einfaches Einstecken und auch bei häufigen Steckungen und starken Erschütterungen eine sichere elektrische Verbindung und eine gute mechanische Festigkeit gewährleistet, wobei sie außerdem ausreichend gegen schädliche Störstrahlungen gesichert sein soll.The invention is therefore based on the object to provide a plug-in connection for coaxial conductors, in particular for antennas, in an angular form, which ensures simple plugging in and also with frequent plug-in connections and strong vibrations, a secure electrical connection and good mechanical strength, while also being sufficiently resistant to harmful interference radiation should be secured.

Diese Aufgabe wird erfindungsgemäß bei einer Steckverbindung gemäß dem Oberbegriff des Hauptanspruchs durch dessen kennzeichnende Merkmale gelöst. Dadurch, daß der Stecker einen Führungszylinder aufweist, der als überlappende federnde Manschette ausgebildet ist, die an ihrem dem offenen Ende gegenüberliegenden Ende mit einem als getrenntes Teil ausgebildetes Abschirmblech abgedeckt ist, wird die Buchse elastisch und funktionssicher im Betrieb auch bei nicht gerader Zuführung beim Steckvorgang und bei Mehrfachsteckungen gehalten, wobei durch die formschlüssige Verbindung zwischen Manschette und Abschirmblech der durch die überlappende Manschette vorgegebene große Federweg aufrechterhalten werden kann. Durch die überlappende Ausführung und das Abschirmblech ist der Stecker weitgehend dicht gegen hochfrequente oder sonstige schädliche Störeinstrahlungen.This object is achieved in a plug connection according to the preamble of the main claim by its characterizing features. Characterized in that the plug has a guide cylinder which is designed as an overlapping resilient sleeve, which is covered at its end opposite the open end with a shield formed as a separate part, the socket is elastic and reliable in operation even when the feed is not straight during the plugging process and held with multiple connections, whereby the large spring travel predetermined by the overlapping sleeve can be maintained by the positive connection between the sleeve and the shielding plate. Due to the overlapping design and the shielding plate, the connector is largely sealed against high-frequency or other harmful interference.

Durch die in den Unteransprüchen angegebenen Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen möglich. Besonders vorteilhaft ist, daß in axialer Richtung eine zusätzliche Feder vorgesehen ist, die in axialer Richtung vorgespannt ist. Dadurch wird einerseits auch bei Erschütterungen ein sicherer Massekontakt aufrechterhalten und außerdem wird die mechanische Haltekraft in axialer Richtung verbessert, da eine elastische Vorspannung vorgesehen ist.Advantageous further developments and improvements are possible through the measures specified in the subclaims. It is particularly advantageous that an additional spring is provided in the axial direction, which is biased in the axial direction. This will on the one hand Maintain a safe ground contact even in the event of vibrations and the mechanical holding force in the axial direction is also improved since an elastic preload is provided.

Eine weitere vorteilhafte Ausgestaltung besteht darin, daß der Stecker von einer eine Mehrzahl von Federbeinen mit Rastelementen aufweisenden Klammer umgriffen wird, wobei die eine Art von Federbeinen mit dem Stecker verrasten und die andere Art von Federbeinen mit dem Chassis des Autoradios verrastbar sind. Auf diese Weise wird eine schwimmende Aufhängung des Steckers zur Verfügung gestellt, wodurch auch bei Fertigungstoleranzen und Mehrfachsteckungen die Herstellung der Verbindung betriebssicher gewährleistet wird.A further advantageous embodiment consists in that the plug has a plurality of spring struts with locking elements Clasp is encompassed, one type of struts latching with the plug and the other type of struts being latched to the chassis of the car radio. In this way, a floating suspension of the connector is made available, which ensures the establishment of the connection reliably even with manufacturing tolerances and multiple connections.

Eine vorteilhafte Ausgestaltung der Buchse besteht darin, daß die äußere Metallhülle das innenliegende Isolierstück an dem der Buchse zugewandten Ende etwas übergreift, d.h. etwas über die Stirnfläche des Isolierstückes herausragt, da auf diese Weise zusätzlich ein elektrischer Kontakt mit der axialen Feder hergestellt wird.An advantageous embodiment of the bushing is that the outer metal sheath somewhat overlaps the inner insulating piece at the end facing the bushing, i.e. something protrudes over the end face of the insulating piece, since in this way an additional electrical contact with the axial spring is made.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird in der nachfolgenden Beschreibung näher erläutert. Es zeigen:

Fig. 1
eine Aufsicht auf ein Ausführungsbeispiel der erfindungsgemäßen Steckverbindung,
Fig. 2
einen Schnitt durch die Steckverbindung gemäß Fig. 1,
Fig. 3
eine Aufsicht auf ein Ausführungsbeispiel einer den Stecker festlegenden Klammer,
Fig. 4
einen Schnitt der Klammer gemäß Fig. 3,
Fig. 5
eine schematische Ansicht des am Chassis befestigten Steckers mit angedeuteter Buchse, und
Fig. 6
einen Schnitt durch ein weiteres Ausführungsbeispiel der Erfindung im eingebauten Zustand.
An embodiment of the invention is shown in the drawing and is explained in more detail in the following description. Show it:
Fig. 1
a supervision of an embodiment of the connector according to the invention,
Fig. 2
2 shows a section through the plug connection according to FIG. 1,
Fig. 3
2 shows a top view of an exemplary embodiment of a clip which fixes the plug,
Fig. 4
4 shows a section of the clip according to FIG. 3,
Fig. 5
a schematic view of the connector attached to the chassis with the indicated socket, and
Fig. 6
a section through a further embodiment of the invention in the installed state.

Der Stecker 1 der Steckverbindung besteht aus einem Führungszylinder 2, einem den Führungszylinder 2 am unteren Ende abdeckenden Abschirmblech 3, einer axialen scheibenförmigen Feder 4, einem mittigen mit einer Anschlußfahne 5 versehenen mittigen Stift 6, der zwischen zwei Isolierstücken 7, 8 aus Kunststoff festgelegt ist.The plug 1 of the connector consists of a guide cylinder 2, a shield plate 3 covering the guide cylinder 2 at the lower end, an axial disc-shaped spring 4, a central pin 6 provided with a connecting lug 5, which is fixed between two insulating pieces 7, 8 made of plastic .

Der Führungszylinder 2 ist als Manschette aus Metall ausgebildet, deren nicht miteinander verbundenen Enden sich gemäß dem Überlappungsbereich 9 nach Fig. 1 federnd überlappen. Am unteren Ende des Führungszylinders 2 sind Lappen 10 angeformt, die umgebogen werden und das Abschirmblech 3 festlegen. In unmittelbarer Nähe des offenen Endes des Zylinders 2 ist sein Umfang mit einer nach innen gerichteten Kehle 11 versehen. Selbstverständlich kann diese Kehle 11 auch als am inneren Umfang des Zylinders 2 angeformter Wulst ausgebildet sein.The guide cylinder 2 is designed as a sleeve made of metal, the ends of which are not connected to one another and overlap resiliently in accordance with the overlap region 9 according to FIG. 1. Tabs 10 are formed on the lower end of the guide cylinder 2, which are bent over and fix the shielding plate 3. In the immediate vicinity of the open end of the cylinder 2, its circumference is provided with an inward throat 11. Of course, this throat 11 can also be formed as a bead formed on the inner circumference of the cylinder 2.

Die axiale Feder 4 ist als Scheibe ausgebildet, deren Umfang im Ausführungsbeispiel an drei Stellen eingeschnitten ist, so daß sich drei Lappen 12 ergeben, die unter Spannung hochgebogen sind. Auf dem Umfang des Mantels des Führungszylinders 2 sind in der Höhe der axialen Feder 4 Einschnitte angeordnet, wodurch sich Biegenasen 13 bilden, die nach innen umgebogen werden und die Feder 4 festlegen.The axial spring 4 is designed as a disc, the circumference of which is cut at three points in the exemplary embodiment, so that there are three tabs 12 which are bent up under tension. On the circumference of the jacket of the guide cylinder 2 4 incisions are arranged at the height of the axial spring, whereby bending lugs 13 are formed which are bent inwards and fix the spring 4.

Das Abschirmblech 3 und die Feder 4 weisen seitliche Führungsschienen 14, 15 auf, die durch eine Ausnehmung im Führungszylinder 2 senkrecht zu diesem nach außen geführt sind. Dabei sind seitlich an der Führungsschiene 14 des Abschirmbleches 3 Krimpansätze 16 angeordnet. Der nicht dargestellte Koaxialleiter wird im abisolierten Zustand zwischen die Führungsschienen 14, 15 geschoben und die Krimpansätze werden senkrecht hochgebogen, so daß sie die seitliche Begrenzung bilden. Auch die Isolierstücke 7, 8 weisen jeweils einen seitlichen zwischen den Führungsschienen 14, 15 angeordneten Ansatz 17, 18 auf. Zwischen den Ansätzen 17, 18 der Isolierstücke 7, 8 ist ein Hohlraum vorgesehen, in dem die Anschlußfahne des Stiftes 6 endet. Der abisolierte Innenleiter des Koaxialleiters wird derart in den Hohlraum geschoben, daß er mit dem Innenleiter 5 eine elektrische Verbindung bildet. Der Hohlraum ist seitlich offen, so daß die Anschlußfahne 5 von außen zugänglich ist. Dadurch wird ermöglicht, daß, falls gewünscht, die Anschlußfahne 5 mit dem Innenleiter des Koaxialkabels verlötet werden kann.The shielding plate 3 and the spring 4 have lateral guide rails 14, 15 which are guided outwards through a recess in the guide cylinder 2 perpendicular to the latter. In this case, 3 crimp extensions 16 are arranged laterally on the guide rail 14 of the shielding plate. The coaxial conductor, not shown, is pushed in the stripped state between the guide rails 14, 15 and the crimp extensions are bent vertically so that they form the lateral boundary. The insulating pieces 7, 8 also each have a lateral extension 17, 18 arranged between the guide rails 14, 15. A cavity is provided between the shoulders 17, 18 of the insulating pieces 7, 8, in which the connecting lug of the pin 6 ends. The stripped inner conductor of the coaxial conductor is pushed into the cavity in such a way that it forms an electrical connection with the inner conductor 5. The cavity is open on the side, so that the terminal lug 5 is accessible from the outside. This enables the terminal lug 5 to be soldered to the inner conductor of the coaxial cable, if desired.

Falls nötig können auch die Krimpansätze 16 mit der seitlichen Führungsschiene 15 und dem Masseleiter des Koaxialkabels verlötet werden.If necessary, the crimp extensions 16 can also be soldered to the lateral guide rail 15 and the ground conductor of the coaxial cable.

Für die Befestigung des Steckers am Chassis des Autoradios ist eine Klammer 19 gemäß Fig. 3 und 4 vorgesehen, die spinnenartig ausgebildet ist, d.h. eine Mehrzahl von Federbeinen 21, 22 aufweist, die an ein Mittelteil 20 angeformt sind. Die Federbeine 21 sind nach innen geneigt, während die Federbeine 22 eine nach außen hin gerichtete Vorspannung aufweisen. Beide Arten von Federbeinen 21, 22 sind an ihren Enden mit umgebogenen Rastnasen 23, 24 versehen.For the attachment of the plug to the chassis of the car radio, a clip 19 according to FIGS. 3 and 4 is provided, which is spider-like, ie has a plurality of spring struts 21, 22 which are molded onto a central part 20. The struts 21 are inclined inward while the Struts 22 have an outward bias. Both types of struts 21, 22 are provided at their ends with bent locking lugs 23, 24.

Die Befestigung des Steckers 1 mittels der Klammer 19 an einem Chassis 25 des Autoradios ist in Fig. 5 gezeigt. Dabei wird der Stecker 1 derart zwischen die nach innen gebogenen Federbeine 21 der Klammer 19 angeordnet, daß die Rastnasen 23 über den Rand des Führungszylinders 2 greifen. In dem Chassis 25 sind Ausnehmungen angeordnet und die nach außen vorgespannten Federbeine 22 werden zusammengedrückt und die Rastnasen 24 in die Ausnehmungen eingesteckt, so daß sie nach Loslassen der Federbeine 22 das Chassis 25 unter Spannung hintergreifen.The attachment of the plug 1 by means of the clip 19 to a chassis 25 of the car radio is shown in FIG. 5. The connector 1 is arranged between the inwardly bent struts 21 of the bracket 19 in such a way that the locking lugs 23 engage over the edge of the guide cylinder 2. In the chassis 25 recesses are arranged and the outwardly biased struts 22 are compressed and the detents 24 are inserted into the recesses so that they engage behind the chassis 25 under tension after releasing the struts 22.

In der Zeichnung nach Fig. 5 ist auch die Buchse 26 der Steckverbindung schematisch angedeutet, die mit dem Radio selbst fest verbunden ist. Die Buchse 26 weist einen äußeren Metallmantel auf, der mit einem Wulst 27 versehen ist. Nach dem Einstecken der Buchse 26 in den Stecker 1 hintergreift die Kehle 11 den Wulst 27. Dabei ist die Länge des Wulstes 27 etwas größer als der Abstand zwischen der Kehle 11 und den hochgebogenen Lappen 12 der axialen Feder 4 in Ruhestellung, so daß im eingesteckten Zustand der Buchse durch die Feder 4 eine axiale Kraft auf die Buchse 26 wirkt. Auf diese Weise wird eine sichere elektrische Verbindung zwischen Buchse 26 und Stecker 2 und eine sichere mechanische Festlegung gewährleistet. Da die Manschette des Führungszylinders 2 unter Spannung überlappend ausgebildet ist, ist ein einfaches Einstecken der Buchse 26 in den Stecker möglich, wobei nach dem Einstecken die auseinandergebogene Manschette sich wieder zusammenzieht und eine sichere elektrische Verbindung zwischen Manschette und Metallhülle der Buchse herstellt. Zusätzlich ist die Buchse 26 derart ausgestaltet, daß die Metallhülle die dem Stecker zugewandte Stirnfläche des inneren Isolierstückes, wie bei Fig. 5 angedeutet, etwas überragt, so daß auch eine elektrische Verbindung zwischen der Metallhülle und der axialen Feder 4 gegeben ist.In the drawing of Fig. 5, the socket 26 of the connector is indicated schematically, which is firmly connected to the radio itself. The bushing 26 has an outer metal jacket which is provided with a bead 27. After inserting the socket 26 into the plug 1, the throat 11 engages behind the bead 27. The length of the bead 27 is somewhat larger than the distance between the throat 11 and the bent-up tabs 12 of the axial spring 4 in the rest position, so that in the inserted position State of the bush by the spring 4 an axial force acts on the bush 26. In this way, a secure electrical connection between socket 26 and connector 2 and a secure mechanical fixing is ensured. Since the cuff of the Guide cylinder 2 is formed overlapping under voltage, a simple insertion of the socket 26 into the plug is possible, wherein after the insertion, the cuff bent apart again and creates a secure electrical connection between the sleeve and the metal shell of the socket. In addition, the socket 26 is designed in such a way that the metal sleeve projects somewhat beyond the end face of the inner insulating piece facing the plug, as indicated in FIG. 5, so that there is also an electrical connection between the metal sleeve and the axial spring 4.

In Fig. 6 ist ein weiteres Ausführungsbeispiel der erfindungsgemäßen Steckverbindung dargestellt, wobei der Stecker 1 ähnlich wie in Fig. 5 mit einer Klammer 28 an einem Montage- oder Chassisteil 25 befestigt ist. Der Stecker 1 ist in diesem Ausführungsbeispiel einfacher aufgebaut, da die Feder 4 weggelassen ist, so daß der elektrische Kontakt als Erdkontakt nur über die federnde Manschette des Führungszylinders 2 erfolgt. Entsprechend Fig. 2 wird der mit einer Anschlußfahne 5 versehene mittige Stift 6 zwischen zwei Isolierstücken 7, 8 festgelegt, die mit einer Druckknopfverbindung verbunden sind, wobei entgegen Fig. 2, bei der das untere Isolierstück 8 in das Innere des Stifts 6 eingreift, entsprechend Fig. 6 das Isolierstück 8 eine Ausnehmung 9 aufweist, in die wiederum der Anschlußstift 6 eingreift.FIG. 6 shows a further exemplary embodiment of the plug connection according to the invention, the connector 1 being fastened to a mounting or chassis part 25 with a bracket 28, similarly to FIG. 5. The plug 1 is of a simpler design in this exemplary embodiment, since the spring 4 is omitted, so that the electrical contact as an earth contact occurs only via the resilient sleeve of the guide cylinder 2. 2, the central pin 6 provided with a connecting lug 5 is fixed between two insulating pieces 7, 8, which are connected with a push-button connection, and contrary to FIG. 2, in which the lower insulating piece 8 engages in the interior of the pin 6, accordingly Fig. 6, the insulating piece 8 has a recess 9, which in turn engages the pin 6.

Die Klammer 28 unterscheidet sich von der Klammer nach Fig. 3 und 4 darin, daß sie lediglich die Federbeine 22 aufweist, die eine nach außen hin gerichtete Vorspannung haben. Die Federbeine 22 gehen von einem Mittelteil 29 aus, wobei das Mittelteil 29 als Platte ausgebildet ist, in denen Ausnehmungen 30 vorgesehen sind. Zur Befestigung der Klammer 28 an dem Stecker 1 durchgreifen die an dem Führungszylinder 2 angeformten Lappen 10 die Ausnehmungen 30 unterhalb des Abschirmbleches 3 angeordneten Mittelteil 29 und werden anschließend umgebogen. Die Ausnehmungen 30 sind als Langlöcher derart ausgebildet, daß die umgebogenen Lappen ein gewisses Spiel haben.The bracket 28 differs from the bracket of FIGS. 3 and 4 in that it is only the Has struts 22 which have an outward bias. The spring struts 22 start from a central part 29, the central part 29 being designed as a plate in which recesses 30 are provided. To attach the clamp 28 to the plug 1, the tabs 10 formed on the guide cylinder 2 pass through the recesses 30 below the shielding plate 3 and are then bent over. The recesses 30 are designed as elongated holes in such a way that the bent tabs have a certain amount of play.

Damit die Rastnasen 24 der Federbeine 22 bei Bewegen des Steckers 1 nicht aus den Ausnehmungen im Chassis oder Montageteil 25 herausspringen, ist ein Sicherungsring 31 vorgesehen, der von der Einsteckseite der Buchse 26 in die Öffnung für den Stecker 2 im Montageteil 25 eingesteckt wird und Schnappnasen 32 aufweist, die unter das Montageteil 25 greifen. Der Sicherungsring 31 ist mit einem durchgehenden Flansch 33 oder mit Auskragungen versehen, die auf die Rastelemente 24 drücken und somit die Federbeine 28 festlegen. Auf diese Weise wird eine schwimmende, d.h. elastische Lagerung des Steckers 1 erzielt, wobei trotz Bewegung sich die Verbindung zwischen Federbeine 28 und Montageteil 25 nicht löst.So that the locking lugs 24 of the struts 22 do not jump out of the recesses in the chassis or mounting part 25 when the plug 1 is moved, a locking ring 31 is provided, which is inserted from the insertion side of the socket 26 into the opening for the plug 2 in the mounting part 25 and snap lugs 32 which engage under the mounting part 25. The locking ring 31 is provided with a continuous flange 33 or with projections which press on the locking elements 24 and thus fix the struts 28. In this way, a floating, i.e. achieved elastic storage of the connector 1, the connection between the struts 28 and the mounting part 25 does not come off despite movement.

Claims (12)

  1. Connection for a coaxial cable, in particular for an antenna, having a socket (26) which has an outer metal case surrounding an insulating member with an inner conductor, provided with a bead (27) and having a plug (1) which has a guide cylinder (2) and a cover plate (3) over the one end of the guide cylinder (2) and a centrally arranged pin (6), in which the guide cylinder (2) forms the main connection with the metal case of the socket (26) and is provided with an inwardly directed ridge (11) around its periphery in the neighbourhood of its open end, which the bead (27) of the metal case engages when inserted,
    characterised in that the guide cylinder is formed as a self-overlapping spring cuff, which has formations (1) on its end remote from its open end which bend underneath and grip the cover plate (3), which is formed as a separate part, and fix it in position.
  2. Connection according to claim 1, characterised in that a spring (4), pretensioned in the axial direction, is inserted into the guide cylinder (2).
  3. Connection according to claims 1 and 2, characterised in that the axial length of the bead (27) of the case (26) is greater than the axial length between the ridge (11) of the guide cylinder (2) and the spring (4) in its natural position.
  4. Connection according to claims 2 or 3, characterised in that the spring (4) is formed as a disc from the periphery of which sprung fingers (12) are cut out and bent in the axial direction.
  5. Connection according to any of claims 1 to 4, characterised in that two insulating members (7,8) are provided above the cover plate (3) or possibly between the spring (4) and cover plate (3) between which the pin (6) is secured by a tab (5).
  6. Connection according to any of claims 2 to 5, characterised in that the spring (4) is secured at its axial position with respect to the open end of the guide cylinder (2) by bending tabs (13) provided on the cuff.
  7. Connection according to any of claims 1 to 6, characterised in that the cover plate (3) and/or the spring (4) have laterally extending guide pieces to receive the coaxial lead and to secure the insulating members with fastening tabs.
  8. Connection according to any of claims 1 to 7, characterised in that the plug (1) is held in a clip (19,28) which has a plurality of spring fingers (22) with snap or notch elements (23,24) serving to engage in a mounting part, and which serve to floatingly secure the clip (19,28) in a mount (25).
  9. Connection according to claim 8, characterised in that the clip (19) gripping the plug (1) has two types of spring fingers (21,22) with notch elements (23,24), of which the notch elements (23) of the one type serve to secure the spring fingers (21) with the plug (1) and those of the other type (24) serve to secure the spring fingers (22) in the mount.
  10. Connection according to claim 8 or claim 9, characterised in that a locking device is provided that fixes the snap or notch elements in their bent over positions.
  11. Connection according to claim 10, characterised in that the safety device is formed as a locking ring (31) which grips beneath the mount (25) and overlies the notch elements (24) of the spring fingers (22).
  12. Connection according to any of claims 1 to 11, characterised in that the end of the metal case of the socket (26) that is towards the plug (1) extends over the insulating member.
EP88730261A 1987-12-01 1988-11-29 Connection for a coaxial cable, in particular for an antenna Expired - Lifetime EP0319459B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8716011U 1987-12-01
DE8716011U DE8716011U1 (en) 1987-12-01 1987-12-01 Plug connection for coaxial cables, especially for antennas

Publications (3)

Publication Number Publication Date
EP0319459A2 EP0319459A2 (en) 1989-06-07
EP0319459A3 EP0319459A3 (en) 1990-05-30
EP0319459B1 true EP0319459B1 (en) 1994-03-16

Family

ID=6814735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88730261A Expired - Lifetime EP0319459B1 (en) 1987-12-01 1988-11-29 Connection for a coaxial cable, in particular for an antenna

Country Status (2)

Country Link
EP (1) EP0319459B1 (en)
DE (2) DE8716011U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9202102U1 (en) * 1992-02-14 1992-06-04 Robert Karst GmbH & Co. KG, 1000 Berlin Plug connection with fastening device for mobile devices
JP3532428B2 (en) * 1998-11-27 2004-05-31 住友電装株式会社 Terminal
JP3834309B2 (en) * 2002-12-26 2006-10-18 ヒロセ電機株式会社 Coaxial electrical connector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3604896A1 (en) * 1986-02-15 1987-08-20 Bosch Gmbh Robert COAXIAL ANGLE PLUG
DE8617227U1 (en) * 1986-06-27 1986-08-14 Robert Bosch Gmbh, 7000 Stuttgart Extension cable for an antenna cable connected to a vehicle antenna

Also Published As

Publication number Publication date
EP0319459A3 (en) 1990-05-30
EP0319459A2 (en) 1989-06-07
DE3888470D1 (en) 1994-04-21
DE8716011U1 (en) 1988-01-21

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