EP0444567B1 - Einrichtung zum Verbinden eines Koaxialkabels mit einer gedruckten Schaltung, ohne Vorbereitung des Kabels - Google Patents

Einrichtung zum Verbinden eines Koaxialkabels mit einer gedruckten Schaltung, ohne Vorbereitung des Kabels Download PDF

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Publication number
EP0444567B1
EP0444567B1 EP91102720A EP91102720A EP0444567B1 EP 0444567 B1 EP0444567 B1 EP 0444567B1 EP 91102720 A EP91102720 A EP 91102720A EP 91102720 A EP91102720 A EP 91102720A EP 0444567 B1 EP0444567 B1 EP 0444567B1
Authority
EP
European Patent Office
Prior art keywords
cable
support
printed circuit
axis
cover
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
EP91102720A
Other languages
English (en)
French (fr)
Other versions
EP0444567A1 (de
Inventor
Yannick Reze
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.)
Alcatel CIT SA
Original Assignee
Alcatel Mobile Communication France SA
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 Alcatel Mobile Communication France SA filed Critical Alcatel Mobile Communication France SA
Publication of EP0444567A1 publication Critical patent/EP0444567A1/de
Application granted granted Critical
Publication of EP0444567B1 publication Critical patent/EP0444567B1/de
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
    • H01R9/0515—Connection to a rigid planar substrate, e.g. printed circuit board

Definitions

  • the invention relates to a device for connecting a coaxial cable to a printed circuit, without preparing the cable, that is to say without having to strip the central conductor and the shielding braid.
  • a coaxial cable is connected to a printed circuit by means of a male coaxial plug and a female coaxial socket, the plug being fixed to one end of the coaxial cable, after prior stripping of the central conductor and the braid of shielding, and the base being fixed on the printed circuit by welds.
  • This known connection device is relatively expensive, since it comprises many parts, and its assembly is labor-intensive since it requires preparation of the cable.
  • the object of the invention is to propose a device which remedies these drawbacks and which can be mounted without specific tools.
  • the device thus allows mounting without preparation of the cable.
  • the central conductor does not need to be stripped since it is penetrated by a metal point driven along the axis of the cable.
  • the braid does not need to be stripped since the insulating sheath is crossed by an insulating displacement contact.
  • the assembly is carried out without specific tools, thanks to the means for guiding the cable, which ensure penetration of the tip along the axis of the central conductor, and thanks to the fact that the insulation displacement contact is constituted by the song of a cut in the shielding cover, which allows this contact to be crimped onto the cable by pressure exerted by hand on the shielding cover.
  • the device is easy to assemble, since the cable assembly consists of: inserting the blade nut into a slot in the support, then screwing the cable through the blade nut and through the cylindrical hole of the support to push the point into the central conductor strand.
  • the shielding cover consists of a single weldable sheet, cut to include a central plate and four peripheral plates; and folded to fold the four peripheral plates orthogonally to the central plate, on the same side with respect to the latter.
  • the device is particularly easy and inexpensive to make.
  • FIG. 1 connects a coaxial cable 4 to a printed circuit board 5.
  • the hidden parts are not shown, for clarity.
  • This exemplary embodiment comprises: a shielding cover 1, made of a sheet of nickel silver 0.3 mm thick, cut and folded; a blade nut 2, consisting of a nickel silver blade; and a support 3, molded in polyamide.
  • the blade nut 2 is inserted into a slot 29 in the support 3.
  • the cover 1 is shown disassembled, to reveal the support 3. When the cover 1 is mounted, it surrounds the support 3 to form an electrical shielding.
  • the cover 1 To facilitate mounting of the cover 1, it is guided by four faces of the support 3 which are orthogonal to the plate 5, such as the faces 31 and 33. For this, the dimensions of the support 3 are slightly smaller than the dimensions of the interior of the cover 1.
  • One of the faces of the cover 1 has a cutout, 6-8, which constitutes an insulation displacement contact. When the cover 1 is mounted, this cutout is crimped onto the cable 4.
  • the cover 1 has four welding pins, such as the pin 7. When the cover 1 is mounted, the four welding pins are inserted in the holes of the printed circuit board 5, such as holes 30 and 32. The pins 7 are soldered onto printed circuit pads, situated on the face opposite to that supporting the support 3.
  • FIG. 2 represents a sectional view of this exemplary embodiment, with the cover mounted, according to a section plane II II.
  • the cable 4 comprises: a central conductor 11 consisting of a strand of copper filaments; an insulating layer 12 covering the strand; a shielding braid 13 covering the layer 12; and a peripheral insulating sheath 14.
  • the cable 4 is disposed parallel to the plate 5, through a helical opening of the blade nut 2 and through a cylindrical hole 28 in the support 3.
  • the cable 4 has been screwed into the blade nut 2 to drive a point 27 into the strand of the central conductor 11.
  • the tip 27 is one end of a metal rod 26 partially embedded in the support 3, the point 27 protruding from the bottom of the hole 28.
  • the other end of this metal rod 26 constitutes a weldable pin 22 which passes through a hole 21 of the plate of the printed circuit 5, and which is welded to a patch 20.
  • This metal rod 26 is bent at right angles, so that the axis of the tip 27 is parallel to the plane of the plate 5 while the axis weldable pin 22 is orthogonal to this plate.
  • FIG. 2 also shows two of the welding pins, 7 and 23, of the cover 1. They pass through holes 16 and 25 of the plate 5, and are welded on pads 17 and 24 connected to the ground of the printed circuit, by connections not shown.
  • FIG. 3 represents the cover 1 in isolation. It is made of a single sheet of nickel silver, cut to include a central plate 37, and four peripheral plates, such as the plates 38 and 39.
  • the four peripheral plates are folded orthogonally with respect to the plate 37, on the same side with respect to the latter, so that the plate 37 constitutes the top of the cover while the peripheral plates constitute four sides of the cover.
  • the peripheral plate 38 includes the fork-shaped cutout, 6-8, constituting the insulation displacement contact.
  • This cutout includes a mouth 6 having a greater width of the cable 4, then decreasing to a groove 8 having a constant width less than the diameter of the cable 4, and equal to the diameter of the braid 13, so that when the cover 1 is crimped on the cable 4, the edge of the cutout 6-8 crosses the sheath 14 and clamps the braid shielding 13.
  • the plate 30, as well as the symmetrical plate with respect to the central plate 31, is extended by two tabs constituting welding pins, such as the pin 7.
  • FIG. 4 represents the blade nut 2 in isolation. It is constituted by a piece of nickel silver sheet, pierced with a helical opening 40 having a diameter slightly less than the diameter of the cable 4, and comprising a cut 41 perpendicular to the edge of the opening 40. The two edges of the cut 41 are slightly apart to give a helical shape to the opening 40.
  • the cable 4 is screwed into the opening 40, after the blade nut 2 has been placed in the slot 29 of the support 3.
  • the edge of the opening 40 bites and slightly deforms the sheath 14, because the latter has a certain elasticity.
  • FIG. 5 represents the support 3 in isolation. It consists of a block of molded polyamide, having a generally parallelepidic shape, comprising a slot 29 whose plane is perpendicular to the axis of the hole 28, and comprising a cutout 42 in the form of U.
  • the cutout 42 constitutes a recess having a generally planar shape and parallel to the plane of the slot 29. It is intended to facilitate the molding of the support 3, more particularly for molding the slot 29.
  • the scope of the invention is not limited to the embodiment described above. Many variant embodiments are within the reach of those skilled in the art.
  • the dimensions are also chosen according to the characteristic impedance of the cable to be connected.

Landscapes

  • Multi-Conductor Connections (AREA)
  • Communication Cables (AREA)

Claims (3)

  1. Vorrichtung zum Anschluß eines Koaxialkabels an eine gedruckte Schaltung (5) ohne Vorbereitung des Kabels (4), das einen litzenförmigen zentralen Leiter (11), eine Isolierschicht (12), ein Abschirmungsgeflecht (13) und eine periphere Isolierhülle (14) aufweist, wobei die Vorrichtung enthält:
    - einen Leiter (26), dessen eines Ende eine Spitze (27) aufweist und dessen anderes Ende (22) auf die gedruckte Schaltung (5, 20) gelötet werden kann,
    - Mittel (2, 3), um das Kabel (4) schraubenförmig zu führen, mit einer Translationsrichtung entlang der Achse des Kabels und der Achse der Spitze (27), um die Spitze (27) in die Litze des zentralen Leiters (11) einzudrücken,
    - eine Abschirmungshaube (1), die die Führungsmittel (2, 3) umgibt und einen gabelförmigen Ausschnitt (5, 6) aufweist, der einen Isolationsverdrängungskontakt bildet, der auf das Kabel (4) gedrückt wird und seine Isolierhülle (14) durchquert sowie das Geflecht (13) einklemmt, wobei die Haube (1) an die Masse der gedruckten Schaltung (5) über Lötbeine (7, 23) anschließbar ist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel zur Führung des Kabels (4) aufweisen:
    - einen Träger (3) aus Kunststoffmaterial mit einem zylindrischen Loch (28), dessen Durchmesser dem Durchmesser des Kabels (4) gleicht und das eine Drehsymmetrieachse aufweist, die mit der Achse der Spitze (27) zusammenfällt,
    - eine Lamellenmutter (2), die in einen Schlitz (29) des Trägers (3) eingeführt ist, wobei dieser Schlitz in einer Ebene senkrecht zur Achse der Spitze verläuft und eine schraubenförmige Öffnung (40) hat, deren Durchmesser geringfügig kleiner als der Durchmesser des Kabels (4) ist, damit die Hülle (14) des Kabels in diese Öffnung geschraubt werden kann, wobei diese Öffnung sich vor dem zylindrischen Loch (28) des Trägers befindet.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Abschirmungshaube (1) aus einem einzigen lötbaren Blech besteht, das so ausgeschnitten ist, daß es eine zentrale Platte (37) und vier seitliche Platten (38, 39) aufweist und das so gefaltet ist, daß die vier seitlichen Platten senkrecht zur zentralen Platte (37) und in Bezug auf diese auf der gleichen Seite umgebogen sind.
EP91102720A 1990-02-26 1991-02-25 Einrichtung zum Verbinden eines Koaxialkabels mit einer gedruckten Schaltung, ohne Vorbereitung des Kabels Expired - Lifetime EP0444567B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9002358 1990-02-26
FR9002358A FR2658957B1 (fr) 1990-02-26 1990-02-26 Dispositif pour raccorder un cable coaxial a un circuit imprime, sans preparation du cable.

Publications (2)

Publication Number Publication Date
EP0444567A1 EP0444567A1 (de) 1991-09-04
EP0444567B1 true EP0444567B1 (de) 1995-02-01

Family

ID=9394132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91102720A Expired - Lifetime EP0444567B1 (de) 1990-02-26 1991-02-25 Einrichtung zum Verbinden eines Koaxialkabels mit einer gedruckten Schaltung, ohne Vorbereitung des Kabels

Country Status (9)

Country Link
EP (1) EP0444567B1 (de)
AT (1) ATE118120T1 (de)
DE (1) DE69107099T2 (de)
DK (1) DK0444567T3 (de)
ES (1) ES2070354T3 (de)
FI (1) FI910868A (de)
FR (1) FR2658957B1 (de)
GR (1) GR3015827T3 (de)
NO (1) NO180766C (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308511B (en) * 1995-12-21 2000-03-29 Fringe Electronics Ltd Screening can
DE29803050U1 (de) 1998-02-21 1998-05-20 Beppler, Wolfgang, 88662 Überlingen Stech-Schneid-Klemmverbinder für Coaxialkabel
US6923741B2 (en) † 2002-08-30 2005-08-02 Shimano Inc. Top sprocket for a rear sprocket assembly and rear sprocket assembly for a bicycle
FR2850797A1 (fr) * 2003-02-05 2004-08-06 Radiall Sa Connecteur pour raccorder un cable coaxial a une carte de circuit imprime
DE102004032006B3 (de) * 2004-07-01 2006-04-20 Kathrein-Werke Kg Kontaktelement
US20070054510A1 (en) * 2005-09-02 2007-03-08 Russell Price System and method for shielded coaxial cable attachment
FR3064825B1 (fr) * 2017-03-28 2021-07-30 Thales Sa Connecteur hyperfrequence dispositif de connexion utilisant un tel connecteur, et antenne imprimee equipee d'un tel dispositif
DE102021123830A1 (de) 2021-09-15 2023-03-16 Md Elektronik Gmbh Löthilfe, Baugruppe sowie Verfahren zum Fixieren einer Litze auf einer Kontaktfläche einer Leiterplatte

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4533193A (en) * 1983-11-21 1985-08-06 Burndy Corporation IDC termination for coaxial cable having alignment & stabilizing means
US4708414A (en) * 1987-01-30 1987-11-24 Albert Lam Electric wire connector for coaxial cable
US4842554A (en) * 1988-06-03 1989-06-27 Amp Incorporated One-piece shield for a circular din

Also Published As

Publication number Publication date
ATE118120T1 (de) 1995-02-15
FR2658957B1 (fr) 1992-05-07
NO910727L (no) 1991-08-27
FI910868A (fi) 1991-08-27
EP0444567A1 (de) 1991-09-04
NO180766B (no) 1997-03-03
NO910727D0 (no) 1991-02-25
DE69107099D1 (de) 1995-03-16
GR3015827T3 (en) 1995-07-31
DK0444567T3 (da) 1995-05-08
FR2658957A1 (fr) 1991-08-30
FI910868A0 (fi) 1991-02-22
ES2070354T3 (es) 1995-06-01
DE69107099T2 (de) 1995-05-24
NO180766C (no) 1997-06-11

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