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EP0807995A1 - Device for connecting a coaxial cable on a printed circuit board - Google Patents

Device for connecting a coaxial cable on a printed circuit board Download PDF

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Publication number
EP0807995A1
EP0807995A1 EP97401072A EP97401072A EP0807995A1 EP 0807995 A1 EP0807995 A1 EP 0807995A1 EP 97401072 A EP97401072 A EP 97401072A EP 97401072 A EP97401072 A EP 97401072A EP 0807995 A1 EP0807995 A1 EP 0807995A1
Authority
EP
European Patent Office
Prior art keywords
coaxial cable
circuit board
printed circuit
housing
connection face
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.)
Granted
Application number
EP97401072A
Other languages
German (de)
French (fr)
Other versions
EP0807995B1 (en
Inventor
Olivier Gonzales
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.)
Radiall SA
Original Assignee
Radiall 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 Radiall SA filed Critical Radiall SA
Publication of EP0807995A1 publication Critical patent/EP0807995A1/en
Application granted granted Critical
Publication of EP0807995B1 publication Critical patent/EP0807995B1/en
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
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/50—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted on a PCB [Printed Circuit Board]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/714—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • the present invention relates to a device for connecting a coaxial cable to a printed circuit board.
  • the electrical connection between the coaxial cable and the card is then obtained by coupling the two connector elements.
  • the present invention aims to solve these drawbacks by proposing a device for connecting a coaxial cable to a printed circuit board which comprises a reduced number of parts, which can also be easily manufactured and assembled.
  • the body is made of two complementary parts each comprising a half-housing for the end of the coaxial cable, the two parts being able to close on said end of the coaxial cable to be subject to it.
  • each contact pin comprises, opposite its external end projecting from the connection face, an end internal to the body opening into the housing, each internal end being arranged so that the core, respectively the outer braid of the coaxial cable comes into contact with the pin when the coaxial cable is placed with its stripped end in the housing of the body.
  • the contact pins are produced by compacting metal wires of very small diameter, for example molybdenum wires of 0.01 mm in diameter.
  • the fixing means consists of a base capable of receiving the body and of holding it by snap-fastening with its connection face against the printed circuit board.
  • This base is advantageously provided with studs capable of forcing into holes made for this purpose in the printed circuit board.
  • the device shown in the drawing comprises a body 1 of generally parallelepiped shape and a base 2 constituting, within the meaning of the invention, a means of fixing the body to a printed circuit board 3.
  • the body 1 is mounted at the end of a coaxial cable 4 which comprises, inside its insulating sheath 5, a metal braid 6 for shielding and a central conductive core 7.
  • a housing is provided, for the coaxial cable 4, inside the body 1.
  • This housing is produced in two half-housings which are each provided in one of the two parts 1 a , and 1 b of the body, so that the axis of the housing is located in the connection plane of the two parts 1 a , 1 b of the body.
  • the half-housing comprises three sections semicylindrical diameter decreasing, namely, a portion 10 of diameter substantially equal to that of the cladding 5, a length 11 of diameter substantially equal to that of the braid outer 6 and a section 12 of diameter substantially equal to that of the central core 7.
  • the large diameter section 10 opens onto one of the lateral faces 13 of the body 1, a tooth 14 formed by a portion of a collar of smaller diameter extending over approximately 90 ° being provided at the mouth of said section 10 to tighten the sheath 5 when the two parts 1 a and 1 b of the body are assembled in order to maintain the coaxial cable 4 in its housing.
  • the half-housing of the lower part 1 b comprises sections 10 and 11 identical to those of the upper part 1 a .
  • the lower part 1b comprises a parallelepipedic cavity 12 '.
  • the lower part 1b further comprises two through passages 15 and 16 which extend, for the passage 15, between the section 11 and the lower face 17 of the part 1b , which lower face 17 constitutes, within the meaning of the invention, the connection face of the body 1 and, for the passage 16, between the parallelepiped cavity 12 'and said connection face 17.
  • Contact pins 18, 19, produced by compacting molybdenum wires and consequently having a certain axial elasticity, are housed in the passages 15 and 16 with their ends projecting on either side of the said passages.
  • the base 2 which is made of plastic, has a parallelepiped external shape open on its face corresponding to the face 13 of the body 1, as well as on its upper and lower faces, parallel to the printed circuit board 3.
  • cutouts 24, 25 and this window 26 thus delimit a sort of loop 27, in the shape of an inverted U, which is joined to the frame of bottom 20 by the ends of its branches and which, taking into account the small thickness of its branches, has sufficient elasticity to allow lateral movement of its upper part 27.
  • the walls 21 and 23 are identical and are each symmetrical with respect to a vertical axis (with respect to the drawing) passing through their center.
  • the upper part 1a of the body 1 comprises, as seen in Figure 3, side ears 28 which extend parallel to the axis of the coaxial cable 4 of a length corresponding to that of the window 26 of the base 2.
  • the substantially triangular section of the ears 28 allows them to snap into the handles 27 by lateral deformation of the latter when the body 1 is pushed into the base 2, in a translational movement perpendicular to the printed circuit board 3, in the direction of it.
  • the height of the ears 28 on the body 1 is determined so that their upper edges 28 a are located in the immediate vicinity of the horizontal branch of the handles 27 when the body is placed in the base. Said body is thus snapped into said base.
  • the base comprises a stud 29 at the four corners of its lower face while the body comprises two studs 30 projecting from its connection face 17, aligned with the passages 15 and 16 and on either side of the latter.
  • the pads 30 have the function of protecting the ends of the contact pins 18 and 19 when the body is not placed in the base.
  • a conductive track 34 penetrates into the metallization 33 up to an imprint 35 which is located opposite the contact pin 19.
  • the contact pin 19 comes into contact with the conductive track 34, thus electrically connecting the central core 7 of the coaxial cable 4 and said conductive track 34, while the outer braid 6 is connected to ground by the contact pin 18 which bears on the ground plate 33 at the level of the imprint 36.
  • the coaxial cable 4 is therefore connected to the printed circuit board 3 without any soldering and with a reduced number of parts, each of these parts being moreover economical to produce.

Landscapes

  • Multi-Conductor Connections (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The connection device for connecting the coaxial cable (4) to the circuit board (3) has a body (1) which has a connection face (17) and a cavity for the end of the cable, and is immobilised with this face against the board by a fixture (2). Two contact pieces are formed on the body, one in contact with the cable core and the other with the braid. The fixture has at each corner a foot (29) entering into a hole (31) in the board. Each sidewall is slotted (24,25) on both sides of a window (26) accepting a protrusion (28) of substantially triangular cross-section on the side of the body.

Description

La présente invention concerne un dispositif pour raccorder un câble coaxial à une carte de circuit imprimé.The present invention relates to a device for connecting a coaxial cable to a printed circuit board.

On connaît déjà des dispositifs permettant de raccorder un câble coaxial à une carte de circuit imprimé qui sont constitués par deux éléments de connecteurs, l'un mâle, l'autre femelle, l'un étant monté à l'extrémité du câble coaxial, l'autre étant assujetti à la carte de circuit imprimé, par soudure ou par insertion à force dans des trous prévus à cet effet dans la carte.Devices are already known for connecting a coaxial cable to a printed circuit board which consist of two connector elements, one male, the other female, one being mounted at the end of the coaxial cable, l the other being secured to the printed circuit board, by soldering or by force insertion into holes provided for this purpose in the card.

Le raccordement électrique entre le câble coaxial et la carte est alors obtenu en accouplant les deux éléments de connecteurs.The electrical connection between the coaxial cable and the card is then obtained by coupling the two connector elements.

Ces dispositifs connus présentent l'inconvénient d'être relativement chers à réaliser car ils exigent la fabrication et l'assemblage de nombreuses pièces de grande précision.These known devices have the disadvantage of being relatively expensive to produce because they require the manufacture and assembly of many high precision parts.

En outre, l'installation de tels dispositifs, d'une part à l'extrémité du câble coaxial, d'autre part sur la carte de circuit imprimé, implique un nombre important de manipulations.In addition, the installation of such devices, on the one hand at the end of the coaxial cable, on the other hand on the printed circuit board, involves a significant number of manipulations.

La présente invention vise à résoudre ces inconvénients en proposant un dispositif pour raccorder un câble coaxial à une carte de circuit imprimé qui comporte un nombre réduit de pièces, lesquelles peuvent en outre être facilement fabriquées et assemblées.The present invention aims to solve these drawbacks by proposing a device for connecting a coaxial cable to a printed circuit board which comprises a reduced number of parts, which can also be easily manufactured and assembled.

La présente invention a pour objet un dispositif pour raccorder un câble coaxial à une carte de circuit imprimé qui est caractérisé par le fait qu'il comporte :

  • un corps comprenant une face de raccordement et un logement apte à recevoir l'extrémité d'un câble coaxial possédant une âme centrale et une tresse externe,
  • un moyen de fixation apte à immobiliser ledit corps avec sa face de raccordement contre une carte de circuit imprimé,
  • deux pions de contact axialement compressibles solidarisés au corps, agencés de manière que l'un d'entre eux soit électriquement relié à l'âme centrale du câble coaxial, tandis que l'autre est électriquement relié à la tresse externe du câble coaxial, lorsque l'extrémité de ce dernier est placée dans ledit logement, chaque pion comprenant une extrémité externe au corps dépassant de sa face de raccordement.
The subject of the present invention is a device for connecting a coaxial cable to a printed circuit board which is characterized in that it comprises:
  • a body comprising a connection face and a housing capable of receiving the end of a coaxial cable having a central core and an external braid,
  • a fixing means capable of immobilizing said body with its connection face against a printed circuit board,
  • two axially compressible contact pins secured to the body, arranged so that one of them is electrically connected to the central core of the coaxial cable, while the other is electrically connected to the external braid of the coaxial cable, when the end of the latter is placed in said housing, each pin comprising an end external to the body projecting from its connection face.

On comprend que les deux pions de contact viennent s'appuyer contre la carte de circuit imprimé lorsque la face de raccordement du corps y est appliquée, grâce aux moyens de fixation.It is understood that the two contact pins come to bear against the printed circuit board when the connection face of the body is applied thereto, thanks to the fixing means.

Il suffit donc de prévoir, sur cette carte de circuit imprimé, des pistes situées en regard des pions de contact, pistes contre lesquelles les extrémités externes desdits pions de contact viennent prendre appui lorsque le corps est appliqué contre la carte de circuit imprimé.It is therefore sufficient to provide, on this printed circuit board, tracks located opposite the contact pins, tracks against which the external ends of said contact pins come to bear when the body is applied against the printed circuit board.

De cette manière, on réalise sans soudure un raccordement électrique entre les pistes de la carte de circuit imprimé et le câble coaxial.In this way, an electrical connection is made seamlessly between the tracks of the printed circuit board and the coaxial cable.

Dans un mode de réalisation préféré de l'invention, le corps est réalisé en deux parties complémentaires comprenant chacune un demi-logement pour l'extrémité du câble coaxial, les deux parties étant aptes à se refermer sur ladite extrémité du câble coaxial pour s'y assujettir.In a preferred embodiment of the invention, the body is made of two complementary parts each comprising a half-housing for the end of the coaxial cable, the two parts being able to close on said end of the coaxial cable to be subject to it.

Dans un mode de réalisation particulier, chaque pion de contact comporte, à l'opposé de son extrémité externe dépassant de la face de raccordement, une extrémité interne au corps débouchant dans le logement, chaque extrémité interne étant agencée de manière que l'âme, respectivement la tresse externe, du câble coaxial entre en contact avec le pion lorsque le câble coaxial est mis en place avec son extrémité dénudée dans le logement du corps.In a particular embodiment, each contact pin comprises, opposite its external end projecting from the connection face, an end internal to the body opening into the housing, each internal end being arranged so that the core, respectively the outer braid of the coaxial cable comes into contact with the pin when the coaxial cable is placed with its stripped end in the housing of the body.

Avantageusement, les pions de contact sont réalisés par compactage de fils métalliques de très faible diamètre, par exemple des fils de molybdène de 0,01 mm de diamètre.Advantageously, the contact pins are produced by compacting metal wires of very small diameter, for example molybdenum wires of 0.01 mm in diameter.

Dans un mode de réalisation préféré de l'invention, le moyen de fixation est constitué par une embase apte à recevoir le corps et à le maintenir par encliquetage avec sa face de raccordement contre la carte de circuit imprimé.In a preferred embodiment of the invention, the fixing means consists of a base capable of receiving the body and of holding it by snap-fastening with its connection face against the printed circuit board.

Cette embase est avantageusement munie de plots aptes à pénétrer en force dans des perçages réalisés à cet effet dans la carte de circuit imprimé.This base is advantageously provided with studs capable of forcing into holes made for this purpose in the printed circuit board.

Dans le but de mieux faire comprendre l'invention, on va en décrire maintenant un mode de réalisation donné à titre d'exemple non limitatif, en référence au dessin annexé dans lequel :

  • la figure 1 est une vue en perspective d'un dispositif selon un mode de réalisation de l'invention,
  • la figure 2 est une vue éclatée et en coupe selon II-II du dispositif de la figure 1,
  • la figure 3 est une vue de droite de la figure 2,
  • la figure 4 est une vue analogue à la figure 2, après mise en place de l'embase sur la carte de circuit imprimé, et
  • la figure 5 est une vue analogue à la figure 4, après mise en place du corps dans l'embase.
In order to better understand the invention, we will now describe an embodiment given by way of non-limiting example, with reference to the accompanying drawing in which:
  • FIG. 1 is a perspective view of a device according to an embodiment of the invention,
  • FIG. 2 is an exploded view in section on II-II of the device of FIG. 1,
  • FIG. 3 is a right view of FIG. 2,
  • FIG. 4 is a view similar to FIG. 2, after positioning of the base on the printed circuit board, and
  • Figure 5 is a view similar to Figure 4, after placement of the body in the base.

Le dispositif représenté sur le dessin comprend un corps 1 de forme générale parallélépipédique et une embase 2 constituant, au sens de l'invention, un moyen de fixation du corps sur une carte de circuit imprimé 3.The device shown in the drawing comprises a body 1 of generally parallelepiped shape and a base 2 constituting, within the meaning of the invention, a means of fixing the body to a printed circuit board 3.

Le corps 1 est monté à l'extrémité d'un câble coaxial 4 qui comprend, à l'intérieur de sa gaine isolante 5, une tresse métallique 6 de blindage et une âme centrale conductrice 7.The body 1 is mounted at the end of a coaxial cable 4 which comprises, inside its insulating sheath 5, a metal braid 6 for shielding and a central conductive core 7.

Le corps 1 est divisé en deux parties, à savoir, une partie supérieure 1a et une partie inférieure 1b qui peuvent se solidariser l'une à l'autre grâce à des plots 8 qui font saillie de la face de la partie inférieure 1b située en regard de la partie supérieure 1a et à des orifices traversant correspondants 9 prévus dans la partie supérieure 1a.The body 1 is divided into two parts, namely, an upper part 1 a and a lower part 1 b which can be joined to one another by means of studs 8 which project from the face of the lower part 1 b located opposite the upper part 1 a and with corresponding through orifices 9 provided in the upper part 1 a .

Un logement est prévu, pour le câble coaxial 4, à l'intérieur du corps 1.A housing is provided, for the coaxial cable 4, inside the body 1.

Ce logement est réalisé en deux demi-logements qui sont chacun prévu dans l'une des deux parties 1a, et 1b du corps, de sorte que l'axe du logement se situe dans le plan de raccordement des deux parties 1a, 1b du corps.This housing is produced in two half-housings which are each provided in one of the two parts 1 a , and 1 b of the body, so that the axis of the housing is located in the connection plane of the two parts 1 a , 1 b of the body.

Dans la partie supérieure 1a, le demi-logement comprend trois tronçons demi-cylindriques de diamètre décroissant, à savoir, un tronçon 10 de diamètre sensiblement égal à celui de la gaine 5, un tronçon 11 de diamètre sensiblement égal à celui de la tresse externe 6 et un tronçon 12 de diamètre sensiblement égal à celui de l'âme centrale 7.In the upper part 1a, the half-housing comprises three sections semicylindrical diameter decreasing, namely, a portion 10 of diameter substantially equal to that of the cladding 5, a length 11 of diameter substantially equal to that of the braid outer 6 and a section 12 of diameter substantially equal to that of the central core 7.

Le tronçon de grand diamètre 10 débouche sur l'une des faces latérales 13 du corps 1, une dent 14 formée par une portion de collerette de plus petit diamètre s'étendant sur environ 90° étant prévue à l'embouchure dudit tronçon 10 pour serrer la gaine 5 lorsque les deux parties 1a et 1b du corps sont assemblées afin de maintenir le câble coaxial 4 dans son logement.The large diameter section 10 opens onto one of the lateral faces 13 of the body 1, a tooth 14 formed by a portion of a collar of smaller diameter extending over approximately 90 ° being provided at the mouth of said section 10 to tighten the sheath 5 when the two parts 1 a and 1 b of the body are assembled in order to maintain the coaxial cable 4 in its housing.

Le demi-logement de la partie inférieure 1b comprend des tronçons 10 et 11 identiques à ceux de la partie supérieure 1a.The half-housing of the lower part 1 b comprises sections 10 and 11 identical to those of the upper part 1 a .

En revanche, en regard du tronçon 12, la partie inférieure 1b comprend une cavité parallélépipédique 12'.On the other hand, opposite the section 12, the lower part 1b comprises a parallelepipedic cavity 12 '.

La partie inférieure 1b comprend en outre deux passages traversants 15 et 16 qui s'étendent, pour le passage 15, entre le tronçon 11 et la face inférieure 17 de la partie 1b, laquelle face inférieure 17 constitue, au sens de l'invention, la face de raccordement du corps 1 et, pour le passage 16, entre la cavité parallélépipédique 12' et ladite face de raccordement 17.The lower part 1b further comprises two through passages 15 and 16 which extend, for the passage 15, between the section 11 and the lower face 17 of the part 1b , which lower face 17 constitutes, within the meaning of the invention, the connection face of the body 1 and, for the passage 16, between the parallelepiped cavity 12 'and said connection face 17.

Des pions de contact 18, 19, réalisés par compactage de fils de molybdène et présentant par conséquent une certaine élasticité axiale, sont logés dans les passages 15 et 16 avec leurs extrémités dépassant de part et d'autre desdits passages.Contact pins 18, 19, produced by compacting molybdenum wires and consequently having a certain axial elasticity, are housed in the passages 15 and 16 with their ends projecting on either side of the said passages.

Comme on le voit à la figure 4, lorsque les parties 1a et 1b du corps 1 sont réunies, les extrémités supérieures des pions de contact 18 et 19, ou extrémités internes au corps au sens de l'invention, sont comprimées et entrent en contact avec, d'une part, la tresse externe 6, d'autre part, l'âme centrale 7 du câble coaxial.As seen in Figure 4, when the parts 1a and 1b of body 1 are met, the upper ends of the contact pins 18 and 19, or inner ends to the body within the meaning of the invention, are compressed and enter in contact with, on the one hand, the external braid 6, on the other hand, the central core 7 of the coaxial cable.

L'embase 2, qui est réalisée en matière plastique, présente une forme extérieure parallélépipédique ouverte sur sa face correspondant à la face 13 du corps 1, ainsi que sur ses faces supérieure et inférieure, parallèles à la carte de circuit imprimé 3.The base 2, which is made of plastic, has a parallelepiped external shape open on its face corresponding to the face 13 of the body 1, as well as on its upper and lower faces, parallel to the printed circuit board 3.

Elle comporte ainsi un cadre de fond 20 et trois parois latérales 21, 22 et 23.It thus comprises a bottom frame 20 and three side walls 21, 22 and 23.

La face latérale 22, qui est opposée à la face ouverte de l'embase 2, est pleine, tandis que les faces latérales 21 et 23 comprennent, d'une part, deux découpes 24 et 25 qui s'étendent depuis le bord supérieur de la paroi jusqu'au voisinage du cadre de fond 20 et une fenêtre 26 réalisée entre les découpes 24 et 25 et s'étendant depuis le voisinage du bord supérieur de la paroi jusqu'au voisinage du cadre de fond 20.The lateral face 22, which is opposite to the open face of the base 2, is full, while the lateral faces 21 and 23 comprise, on the one hand, two cutouts 24 and 25 which extend from the upper edge of the wall up to the vicinity of the bottom frame 20 and a window 26 produced between the cutouts 24 and 25 and extending from the vicinity of the upper edge of the wall to the vicinity of the bottom frame 20.

Ces découpes 24, 25 et cette fenêtre 26 délimitent ainsi une sorte d'anse 27, en forme de U inversé, qui est réunie au cadre de fond 20 par les extrémités de ses branches et qui présente, compte-tenu de la faible épaisseur de ses branches, une élasticité suffisante pour permettre un débattement latéral de sa partie supérieure 27.These cutouts 24, 25 and this window 26 thus delimit a sort of loop 27, in the shape of an inverted U, which is joined to the frame of bottom 20 by the ends of its branches and which, taking into account the small thickness of its branches, has sufficient elasticity to allow lateral movement of its upper part 27.

Comme on le voit sur le dessin, les parois 21 et 23 sont identiques et sont chacune symétrique par rapport à un axe vertical (par rapport au dessin) passant par leur milieu.As can be seen in the drawing, the walls 21 and 23 are identical and are each symmetrical with respect to a vertical axis (with respect to the drawing) passing through their center.

La partie supérieure 1a du corps 1 comporte, comme on le voit sur la figure 3, des oreilles latérales 28 qui s'étendent parallèlement à l'axe du câble coaxial 4 sur une longueur correspondant à celle de la fenêtre 26 de l'embase 2.The upper part 1a of the body 1 comprises, as seen in Figure 3, side ears 28 which extend parallel to the axis of the coaxial cable 4 of a length corresponding to that of the window 26 of the base 2.

La section sensiblement triangulaire des oreilles 28 permet leur encliquetage dans les anses 27 par déformation latérale de ces dernières lorsque l'on enfonce le corps 1 dans l'embase 2, selon un mouvement de translation perpendiculaire à la carte de circuit imprimé 3, en direction de celle-ci.The substantially triangular section of the ears 28 allows them to snap into the handles 27 by lateral deformation of the latter when the body 1 is pushed into the base 2, in a translational movement perpendicular to the printed circuit board 3, in the direction of it.

La hauteur des oreilles 28 sur le corps 1 est déterminée de manière que leurs bords supérieurs 28a se situent au voisinage immédiat de la branche horizontale des anses 27 lorsque le corps est mis en place dans l'embase. Ledit corps est ainsi encliqueté dans ladite embase.The height of the ears 28 on the body 1 is determined so that their upper edges 28 a are located in the immediate vicinity of the horizontal branch of the handles 27 when the body is placed in the base. Said body is thus snapped into said base.

L'embase comprend un plot 29 aux quatre coins de sa face inférieure tandis que le corps comprend deux plots 30 en saillie de sa face de raccordement 17, alignés avec les passages 15 et 16 et de part et d'autre de ces derniers.The base comprises a stud 29 at the four corners of its lower face while the body comprises two studs 30 projecting from its connection face 17, aligned with the passages 15 and 16 and on either side of the latter.

Les plots 30 ont pour fonction de protéger les extrémités des pions de contact 18 et 19 lorsque le corps n'est pas mis en place dans l'embase.The pads 30 have the function of protecting the ends of the contact pins 18 and 19 when the body is not placed in the base.

Pour recevoir l'embase et le corps, on a réalisé dans la carte de circuit imprimé 3, quatre passages traversants 31 en regard des plots 29 et deux orifices 32 en regard des plots 30.To receive the base and the body, four through passages 31 facing the studs 29 and two orifices 32 facing the studs 30 were produced in the printed circuit board 3.

La quasi totalité de la surface de la carte de circuit imprimé 3 située en regard de l'embase 2 est revêtue d'une métallisation 33 formant une plaque de masse.Almost the entire surface of the printed circuit board 3 located opposite the base 2 is coated with a metallization 33 forming a ground plate.

Une piste conductrice 34 pénètre dans la métallisation 33 jusqu'à une empreinte 35 qui se situe en regard du pion de contact 19.A conductive track 34 penetrates into the metallization 33 up to an imprint 35 which is located opposite the contact pin 19.

Lorsque l'embase est mise en place sur la carte de circuit imprimé 3 et que le corps 1 est encliqueté dans l'embase, comme on le voit à la figure 5, le pion de contact 19 entre en contact avec la piste conductrice 34, reliant ainsi électriquement l'âme centrale 7 du câble coaxial 4 et ladite piste conductrice 34, tandis que la tresse externe 6 est reliée à la masse par le pion de contact 18 qui prend appui sur la plaque de masse 33 au niveau de l'empreinte 36.When the base is placed on the printed circuit board 3 and the body 1 is snapped into the base, as seen in FIG. 5, the contact pin 19 comes into contact with the conductive track 34, thus electrically connecting the central core 7 of the coaxial cable 4 and said conductive track 34, while the outer braid 6 is connected to ground by the contact pin 18 which bears on the ground plate 33 at the level of the imprint 36.

Le câble coaxial 4 est donc raccordé à la carte de circuit imprimé 3 sans aucune soudure et moyennant un nombre de pièces réduit, chacune de ces pièces étant par ailleurs économique à réaliser.The coaxial cable 4 is therefore connected to the printed circuit board 3 without any soldering and with a reduced number of parts, each of these parts being moreover economical to produce.

Il est bien entendu que le mode de réalisation qui vient d'être décrit ne présente aucun caractère limitatif et qu'il pourra recevoir toutes modifications désirables sans sortir pour cela du cadre de l'invention.It is understood that the embodiment which has just been described has no limiting character and that it can receive any desirable modifications without departing from the scope of the invention.

Claims (5)

Dispositif pour raccorder un câble coaxial (4) à une carte de circuit imprimé (3), caractérisé par le fait qu'il comporte : - un corps (1) comprenant une face de raccordement (17) et un logement (10,11,12,12') apte à recevoir l'extrémité d'un câble coaxial (4) possédant une âme centrale (7) et une tresse externe (6), - un moyen de fixation (2) apte à immobiliser ledit corps (1) avec sa face de raccordement (17) contre une carte de circuit imprimé (3), - deux pions de contact (18,19) axialement compressibles solidarisés au corps (1), agencés de manière que l'un d'entre eux (19) soit électriquement relié à l'âme centrale (7) du câble coaxial (4), tandis que l'autre (18) est électriquement relié à la tresse externe (6) du câble coaxial (4), lorsque l'extrémité de ce dernier est placée dans ledit logement, chaque pion (18,19) comprenant une extrémité externe au corps (1) dépassant de sa face de raccordement (17). Device for connecting a coaxial cable (4) to a printed circuit board (3), characterized in that it comprises: - a body (1) comprising a connection face (17) and a housing (10,11,12,12 ') capable of receiving the end of a coaxial cable (4) having a central core (7) and a external braid (6), - a fixing means (2) able to immobilize said body (1) with its connection face (17) against a printed circuit board (3), - two axially compressible contact pins (18,19) secured to the body (1), arranged so that one of them (19) is electrically connected to the central core (7) of the coaxial cable (4) , while the other (18) is electrically connected to the external braid (6) of the coaxial cable (4), when the end of the latter is placed in said housing, each pin (18,19) comprising an external end to the body (1) projecting from its connection face (17). Dispositif selon la revendication 1, caractérisé par le fait que chaque pion de contact (18,19) comporte, à l'opposé de son extrémité externe dépassant de la face de raccordement, une extrémité interne au corps débouchant dans le logement, chaque extrémité interne étant agencée de manière que l'âme (7), respectivement la tresse externe (6), du câble coaxial (4) entre en contact avec le pion (18,19) lorsque le câble coaxial (4) est mis en place avec son extrémité dénudée dans le logement du corps (1).Device according to claim 1, characterized in that each contact pin (18,19) comprises, opposite its external end projecting from the connection face, an end internal to the body opening into the housing, each internal end being arranged so that the core (7), respectively the outer braid (6), of the coaxial cable (4) comes into contact with the pin (18,19) when the coaxial cable (4) is put in place with its stripped end in the housing of the body (1). Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé par le fait que le corps (1) est réalisé en deux parties (1a, 1b) complémentaires comprenant chacune un demi-logement (10,11,12;10,11,12') pour l'extrémité du câble coaxial (4), les deux parties étant aptes à se refermer sur ladite extrémité du câble coaxial pour s'y assujettir.Device according to either of Claims 1 and 2, characterized in that the body (1) is produced in two complementary parts (1 a , 1 b ) each comprising a half-housing (10,11,12; 10, 11,12 ') for the end of the coaxial cable (4), the two parts being able to close on said end of the coaxial cable to be subject thereto. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que les pions de contact (18,19) sont réalisés par compactage de fils métalliques de très faible diamètre, par exemple des fils de molybdène de 0,01 mm de diamètre.Device according to any one of Claims 1 to 3, characterized in that the contact pins (18,19) are produced by compacting metal wires of very small diameter, for example molybdenum wires of 0.01 mm in diameter. diameter. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé par le fait que le moyen de fixation est constitué par une embase (2) apte à recevoir le corps (1) et à le maintenir par encliquetage avec sa face de raccordement (17) contre la carte de circuit imprimé (3).Device according to any one of Claims 1 to 4, characterized in that the fixing means consists of a base (2) capable of receiving the body (1) and of holding it by snap-fastening with its connection face (17) against the printed circuit board (3).
EP97401072A 1996-05-17 1997-05-14 Device for connecting a coaxial cable to a printed circuit board Expired - Lifetime EP0807995B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9606150A FR2748862B1 (en) 1996-05-17 1996-05-17 DEVICE FOR CONNECTING A COAXIAL CABLE TO A PRINTED CIRCUIT BOARD
FR9606150 1996-05-17
US08/854,961 US5842873A (en) 1996-05-17 1997-05-13 Device for connecting a coaxial cable to a printed circuit card

Publications (2)

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EP0807995A1 true EP0807995A1 (en) 1997-11-19
EP0807995B1 EP0807995B1 (en) 2001-12-05

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US (1) US5842873A (en)
EP (1) EP0807995B1 (en)
JP (1) JPH1074549A (en)
DE (1) DE807995T1 (en)
FR (1) FR2748862B1 (en)

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Also Published As

Publication number Publication date
EP0807995B1 (en) 2001-12-05
US5842873A (en) 1998-12-01
DE807995T1 (en) 1998-04-30
FR2748862A1 (en) 1997-11-21
FR2748862B1 (en) 1998-07-17
JPH1074549A (en) 1998-03-17

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