EP0319459B1 - Connexion pour câble coaxial, en particulier pour des antennes - Google Patents

Connexion pour câble coaxial, en particulier pour des antennes 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)
English (en)
Other versions
EP0319459A2 (fr
EP0319459A3 (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
Priority date (The priority date 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 date listed.)
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/fr
Publication of EP0319459A3 publication Critical patent/EP0319459A3/de
Application granted granted Critical
Publication of EP0319459B1 publication Critical patent/EP0319459B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural 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
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518—Connection 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.

Landscapes

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

Claims (12)

  1. Connexion à enfichage pour des câbles coaxiaux, en particulier pour des antennes, comportant un boîtier (26) pourvu d'une douille métallique à bourrelet (27) qui entoure l'isolateur d'un conducteur interne, et une prise mâle (1) pourvue d'un cylindre de guidage (2), d'un couvercle de protection en tôle (3) qui recouvre l'une des extrémités du cylindre de guidage (2), et d'un doigt central (6), le cylindre de guidage (2) assurant avec la douille métallique du boîtier (26) la mise à la masse, et comportant en périphérie, près de son extrémité ouverte, une gorge (11) dont le profil est incurvé vers l'intérieur, pour franchir le bourrelet (27) de la douille métallique en position enfoncée,
    caractérisée en ce que le cylindre de guidage est constitué par un manchon élastique à recouvrement qui comporte, à l'endroit de son extrémité opposée à son extrémité ouverte, des appendices (10) destinés à fixer en place le couvercle de protection en tôle (3) en s'engageant sous celui-ci avant d'être repliés pour le bloquer.
  2. Connexion à enfichage selon la revendication 1, caractérisée en ce qu'elle comporte un ressort (4) monté dans le cylindre de guidage (2) et assurant un effort de rappel dans le sens axial.
  3. Connexion à enfichage selon la revendication 1 ou 2, caractérisée en ce que la longueur axiale du bourrelet (27) du boîtier (26) est supérieure à la distance axiale qui existe entre la gorge (11) du cylindre de guidage (2) et le ressort (4) au repos.
  4. Connexion à enfichage selon la revendication 2 ou 3, caractérisée en ce que le ressort (4) est constitué par un disque portant en périphérie des pattes élastiques découpées (12) qui sont recourbées dans le sens axial.
  5. Connexion à enfichage selon l'une des revendications 1 à 4, caractérisée en ce qu'elle comporte deux pièces isolantes (7,8) prévues sur le couvercle de protection en tôle (3), ou éventuellement entre le ressort de rappel (4) et le couvercle de protection en tôle (3), le doigt (6) portant sa patte de raccordement (5) étant disposé entre elles.
  6. Connexion à enfichage selon l'une des revendications 2 à 5, caractérisée en ce que le ressort (4) est fixé, dans une position déterminée en cote axiale par rapport à l'extrémité ouverte du cylindre de guidage (2), par des languettes rabattues (13) prévues dans le manchon.
  7. Connexion à enfichage selon l'une des revendications 1 à 6, caractérisée en ce que le couvercle de protection en tôle (3) et/ou le ressort (4) comportent des organes de guidage formés latéralement sur ces éléments, pour recevoir le conducteur coaxial et pour assurer la fixation des pièces isolantes avec la patte de raccordement.
  8. Connexion à enfichage selon l'une des revendications 1 à 7, caractérisée en ce que la prise mâle (1) est entourée par une bride (19,28) qui a plusieurs bras élastiques (22) pourvus d'éléments d'encliquetage (23,24) adaptés à s'engager sur une monture, pour permettre un montage flottant de la bride (19,28) dans une monture (25).
  9. Connexion à enfichage selon la revendication 8, caractérisée en ce que la bride (19) qui entoure la prise mâle (1) possède deux genres de bras élastiques (21,22) pourvus d'éléments d'encliquetage (23,24), les éléments d'encliquetage (23) des bras élastiques (21) d'un premier genre s'accrochant sur la prise mâle (1), alors que les éléments d'encliquetage (24) des bras élastiques (22) de l'autre genre s'accrochent sur la monture.
  10. Connexion à enfichage selon la revendication 8 ou 9, caractérisée en ce qu'elle comporte un organe de sécurité pour maintenir les éléments d'encliquetage accrochés dans leur position de montage.
  11. Connexion à encliquetage selon la revendication 10, caractérisé en ce que l'organe de sécurité est constitué par une bague de sécurité (31) qui s'engage sous la monture (25) en appuyant sur les éléments d'encliquetage (24) des bras élastiques (22).
  12. Connexion à enfichage selon l'une des revendications 1 à 11, caractérisée en ce que la douille métallique du boîtier (26) déborde au-delà de l'isolateur, du côté de son extrémité en regard de la prise mâle (1).
EP88730261A 1987-12-01 1988-11-29 Connexion pour câble coaxial, en particulier pour des antennes Expired - Lifetime EP0319459B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8716011U 1987-12-01
DE8716011U DE8716011U1 (fr) 1987-12-01 1987-12-01

Publications (3)

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

Family

ID=6814735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88730261A Expired - Lifetime EP0319459B1 (fr) 1987-12-01 1988-11-29 Connexion pour câble coaxial, en particulier pour des antennes

Country Status (2)

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EP (1) EP0319459B1 (fr)
DE (2) DE8716011U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9202102U1 (fr) * 1992-02-14 1992-06-04 Robert Karst Gmbh & Co. Kg, 1000 Berlin, De
JP3532428B2 (ja) * 1998-11-27 2004-05-31 住友電装株式会社 端 子
JP3834309B2 (ja) * 2002-12-26 2006-10-18 ヒロセ電機株式会社 同軸電気コネクタ

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3604896A1 (de) * 1986-02-15 1987-08-20 Bosch Gmbh Robert Koaxialer winkelstecker
DE8617227U1 (de) * 1986-06-27 1986-08-14 Robert Bosch Gmbh, 7000 Stuttgart Verlängerungskabel für ein mit einer Fahrzeugantenne verbundenes Antennenkabel

Also Published As

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

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