EP0511077A1 - Electrical connector for fixing and connecting a daughter-board to a mother-board - Google Patents

Electrical connector for fixing and connecting a daughter-board to a mother-board Download PDF

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Publication number
EP0511077A1
EP0511077A1 EP92401118A EP92401118A EP0511077A1 EP 0511077 A1 EP0511077 A1 EP 0511077A1 EP 92401118 A EP92401118 A EP 92401118A EP 92401118 A EP92401118 A EP 92401118A EP 0511077 A1 EP0511077 A1 EP 0511077A1
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EP
European Patent Office
Prior art keywords
connector
board
daughter
tracks
conduit
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Granted
Application number
EP92401118A
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German (de)
French (fr)
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EP0511077B1 (en
Inventor
Jacky Beon
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Sagem SA
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Sagem SA
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Publication of EP0511077A1 publication Critical patent/EP0511077A1/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits

Definitions

  • the present invention relates to an electrical connector for fixing and connecting a daughter board to a mother board.
  • connectors mounted on a printed circuit board, or motherboard, to electrically connect to this card another printed circuit board, or daughter board.
  • These connectors include electrical contacts capable of cooperating with contact tracks on the daughter card, these electrical contacts themselves being connected by solder to tracks on the mother board.
  • the known connectors are arranged on one side of the motherboard by pins passing through this board and soldered on the other face to the tracks of the motherboard in the traditional way, for example by wave soldering.
  • a first type of such connectors form a U-shaped cavity in which part of the daughter board engages. Another type is intended to receive between electrical contacts pins soldered on the daughter board.
  • the present invention aims to overcome this drawback by providing an electrical connector in which the daughter card can be mounted on either side of the motherboard.
  • the subject of the present invention is an electrical connector for fixing and connecting a daughter board to a mother board, characterized in that it comprises a body forming a through conduit for the reception of part of the daughter board provided with contact tracks, the said body being arranged to be inserted in a cutout of the motherboard, electrical contacts being arranged on the walls of said conduit to cooperate with said tracks of the daughter board and being connected to pins for connection to motherboard tracks.
  • the connector according to the invention has a through conduit for the reception of the daughter card, this card can be mounted in one direction or the other, that is to say on one side or the other. from the motherboard.
  • the connector connection pins can extend perpendicularly to the latter to be connected to the tracks of the motherboard by conventional welds or in the plane of the connector to be connected to the tracks of the motherboard by welds of the CMS type (component surface mounted).
  • perpendicular to the connector or in the plane of the connector is meant perpendicular to or in the plane of the motherboard when the connector is mounted thereon.
  • the connector according to the invention therefore also has the advantage of being able, depending on its embodiment, to be connected to the motherboard, either by conventional welds, or by CMS type welds.
  • the connector body has a keying projection arranged to engage in a corresponding shape of the cutout of the motherboard.
  • a keying rib transversely crosses said conduit to engage in a corresponding keying slot of the daughter card.
  • FIGS 1 to 3 show a printed circuit board (1), called motherboard, comprising a rectangular cutout (2) in which is engaged the body (3) of a connector (4) according to the invention.
  • the body (3) has a keying projection (21) intended to engage in a corresponding shape of the cutout (2) to ensure correct mounting direction of the connector on the card.
  • the body (3) forms in its central part an elongate conduit (5) passing through in the form of a slot, perpendicular to the plane of the card (1) when the connector (4) is mounted on this card.
  • a transverse coding rib (20) bars the duct (5) for reasons which will be explained below.
  • the internal walls facing each other in the lengthwise direction of the conduit (5) support flexible electrical contacts (6) connected by conductors (7) passing through the body (3) to pins (8).
  • the connector (4) has, seen in section, a T shape allowing it to be embedded in the card (1), the pins (8) protruding from the body (3) from below the wings of the T .
  • the pins (8) pass through holes in the card (1) and are then welded, for example by wave, onto conductive tapes (9) made on the surface of the card (1). This welding therefore ensures both the electrical connections and the mechanical retention of the connector (4) on the card (1).
  • a connection end (10) of a daughter card (11) can then be inserted into the conduit (5), this daughter card comprising, in the present case on its two faces, conductive pads (12) bearing on the electrical contacts (6) of the connector (3) and thus ensuring the maintenance of the daughter card (11) on the motherboard (1) and the electrical connections between these two cards.
  • connection end (10) of the daughter card (11) also has a keying slot (22) into which the rib (20) can engage when the daughter card is presented in the correct direction at the entrance. of the duct (5).
  • Figure (2) shows the daughter card (11) in solid lines presented to be engaged in the connector (4) on the side of the welds, that is to say on the side opposite to the components mounted on the card (1).
  • This same daughter card (11) is shown in dashed lines presented on the other side of the card (1).
  • the daughter card (11) can therefore be mounted on either side of the card (1).
  • the flexibility of the contacts (6) ensures good electrical contact with the conductive pads (12) when the daughter card is in place in the connector (4).
  • Figure (5) shows another embodiment of a connector (4 ′) according to the invention comprising a body (3 ′) similar to the body (3) of the connector (4), this body (3 ′) forming a through conduit (5 ′) on the walls of which flexible electrical contacts (6 ′) are arranged.
  • the electrical contacts (6 ′) are connected by conductors (7) passing through the body (3) horizontally so as to come out substantially horizontally at the ends of the wings of the T formed by the connector.
  • the protruding ends of the conductors (7 ′) are then manually welded by soldering of the CMS type (surface-mounted component) on conductive tapes (9 ′) of the card (1 ′).
  • connectors having two rows of contacts, but it would obviously be possible to provide only one of one side of the connector.

Abstract

The subject of the invention is an electrical connector for fixing and connecting a daughter board (11) to a mother board (1). For this purpose, it comprises a body (3) forming a traversing conduit (5) for the reception of a part (10) of the daughter board fitted with contact tracks (12), the said body being arranged in order to be inserted into a cut out (2) of the mother board, electrical contacts (6) being disposed on the walls of the said conduit in order to interact with the said tracks of the daughter board, and being electrically connected to pins (7'; 8) for connection to tracks (9) of the mother board. <IMAGE>

Description

La présente invention concerne un connecteur électrique pour fixer et connecter une carte fille à une carte mère.The present invention relates to an electrical connector for fixing and connecting a daughter board to a mother board.

On connait de tels connecteurs montés sur une carte de circuit imprimé, ou carte mère, pour connecter électriquement à cette carte une autre carte de circuit imprimé, ou carte fille. Ces connecteurs comportent des contacts électriques susceptibles de coopérer avec des pistes de contact de la carte fille, ces contacts électriques étant eux-mêmes reliés par soudure à des pistes de la carte mère.We know of such connectors mounted on a printed circuit board, or motherboard, to electrically connect to this card another printed circuit board, or daughter board. These connectors include electrical contacts capable of cooperating with contact tracks on the daughter card, these electrical contacts themselves being connected by solder to tracks on the mother board.

Les connecteurs connus sont disposés sur une face de la carte mère par des broches traversant cette carte et soudées sur l'autre face aux pistes de la carte mère de façon traditionnelle, par exemple par soudure à la vague.The known connectors are arranged on one side of the motherboard by pins passing through this board and soldered on the other face to the tracks of the motherboard in the traditional way, for example by wave soldering.

Un premier type de tels connecteurs forment une cavité à section en U dans laquelle s'engage une partie de la carte fille. Un autre type est destiné a recevoir entre des contacts électriques des broches soudées sur la carte fille.A first type of such connectors form a U-shaped cavity in which part of the daughter board engages. Another type is intended to receive between electrical contacts pins soldered on the daughter board.

Tous les types de connecteur connus présentent toutefois l'inconvénient de ne pouvoir recevoir une carte fille que d'un seul de leur côté.All known types of connector, however, have the disadvantage of being able to receive a daughter card only from one side.

La présente invention vise à palier cet inconvénient en fournissant un connecteur électrique dans lequel la carte fille peut-être montée de l'un ou l'autre côté de la carte mère.The present invention aims to overcome this drawback by providing an electrical connector in which the daughter card can be mounted on either side of the motherboard.

A cet effet, la présente invention a pour objet un connecteur électrique pour fixer et connecter une carte fille à une carte mère, caractérisé par le fait qu'il comprend un corps formant un conduit traversant pour la réception d'une partie de la carte fille munie de pistes de contact, le dit corps étant agencé pour être inséré dans une découpe de la carte mère, des contacts électriques étant disposés sur les parois dudit conduit pour coopérer avec lesdites pistes de la carte fille et étant reliés à des broches de liaison à des pistes de la carte mère.To this end, the subject of the present invention is an electrical connector for fixing and connecting a daughter board to a mother board, characterized in that it comprises a body forming a through conduit for the reception of part of the daughter board provided with contact tracks, the said body being arranged to be inserted in a cutout of the motherboard, electrical contacts being arranged on the walls of said conduit to cooperate with said tracks of the daughter board and being connected to pins for connection to motherboard tracks.

Du fait que le connecteur selon l'invention présente pour la réception de la carte fille un conduit traversant, cette carte peut-être montée dans un sens ou dans l'autre, c'est à dire d'un côté ou de l'autre de la carte mère.Because the connector according to the invention has a through conduit for the reception of the daughter card, this card can be mounted in one direction or the other, that is to say on one side or the other. from the motherboard.

Les broches de liaison du connecteur peuvent s'étendre perpendiculairement à ce dernier pour être reliées aux pistes de la carte mère par des soudures classiques ou dans le plan du connecteur pour être reliées aux pistes de la carte mère par des soudures de type CMS (composant monté en surface).The connector connection pins can extend perpendicularly to the latter to be connected to the tracks of the motherboard by conventional welds or in the plane of the connector to be connected to the tracks of the motherboard by welds of the CMS type (component surface mounted).

Par perpendiculairement au connecteur ou dans le plan du connecteur, on entend perpendiculairement à ou dans le plan de la carte mère lorsque le connecteur est monté sur celle-ci.By perpendicular to the connector or in the plane of the connector is meant perpendicular to or in the plane of the motherboard when the connector is mounted thereon.

Le connecteur selon l'invention présente donc encore l'avantage de pouvoir, suivant son mode de réalisation, être relié à la carte mère, soit par des soudures classiques, soit par des soudures de type CMS.The connector according to the invention therefore also has the advantage of being able, depending on its embodiment, to be connected to the motherboard, either by conventional welds, or by CMS type welds.

Avantageusement, le corps du connecteur comporte une saillie de détrompage agencée pour s'engager dans une forme correspondante de la découpe de la carte mère.Advantageously, the connector body has a keying projection arranged to engage in a corresponding shape of the cutout of the motherboard.

Avantageusement également, une nervure de détrompage traverse tranversalement ledit conduit pour s'engager dans une fente de détrompage correspondante de la carte fille.Advantageously also, a keying rib transversely crosses said conduit to engage in a corresponding keying slot of the daughter card.

On décrira maintenant à titre d'exemple non limitatif, des modes de réalisation particuliers de l'invention en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue de dessous d'une carte munie d'un connecteur selon l'invention,
  • la figure 2 est une vue en coupe selon la ligne II II de la figure 1,
  • la figure 3 est une vue en coupe selon la ligne III-III de la figure 2 ,
  • la figure 4 est une vue en perspective de ce connecteur, et
  • la figure 5 est une vue similaire à la figure 3, d'un autre mode de réalisation.
We will now describe, by way of nonlimiting example, particular embodiments of the invention with reference to the appended drawings in which:
  • FIG. 1 is a bottom view of a card provided with a connector according to the invention,
  • FIG. 2 is a sectional view along line II II of FIG. 1,
  • FIG. 3 is a sectional view along line III-III of FIG. 2,
  • FIG. 4 is a perspective view of this connector, and
  • Figure 5 is a view similar to Figure 3, of another embodiment.

Les figures 1 à 3 montrent une carte (1) de circuit imprimé, dite carte mère, comportant une découpe rectangulaire (2) dans laquelle est engagé le corps (3) d'un connecteur (4) selon l'invention.Figures 1 to 3 show a printed circuit board (1), called motherboard, comprising a rectangular cutout (2) in which is engaged the body (3) of a connector (4) according to the invention.

Le corps (3) comporte une saillie de détrompage (21) destinée à s'engager dans une forme correspondante de la découpe (2) afin d'assurer le bon sens de montage du connecteur sur la carte.The body (3) has a keying projection (21) intended to engage in a corresponding shape of the cutout (2) to ensure correct mounting direction of the connector on the card.

Le corps (3) forme dans sa partie centrale un conduit allongé (5) traversant en forme de fente, perpendiculaire au plan de la carte (1) lorsque le connecteur (4) est monté sur cette carte.The body (3) forms in its central part an elongate conduit (5) passing through in the form of a slot, perpendicular to the plane of the card (1) when the connector (4) is mounted on this card.

Une nervure transversale de détrompage (20) barre le conduit (5) pour des raisons qui seront exposées ci-après.A transverse coding rib (20) bars the duct (5) for reasons which will be explained below.

Les parois internes en vis-à-vis dans le sens de la longueur du conduit (5) supportent des contacts électriques souples (6) reliés par des conducteurs (7) traversant la masse du corps (3) à des broches (8). On voit sur la figure (3) que le connecteur (4) présente vu en coupe une forme en T permettant son encastrement dans la carte (1), les broches (8) ressortant du corps (3) par le dessous des ailes du T.The internal walls facing each other in the lengthwise direction of the conduit (5) support flexible electrical contacts (6) connected by conductors (7) passing through the body (3) to pins (8). It can be seen in FIG. (3) that the connector (4) has, seen in section, a T shape allowing it to be embedded in the card (1), the pins (8) protruding from the body (3) from below the wings of the T .

Les broches (8) traversent des trous dans la carte (1) puis sont soudées, par exemple à la vague, sur des rubans conducteurs (9) réalisés à la surface de la carte (1). Ce soudage assure par conséquent, à la fois les connexions électriques et le maintien mécanique du connecteur (4) sur la carte (1).The pins (8) pass through holes in the card (1) and are then welded, for example by wave, onto conductive tapes (9) made on the surface of the card (1). This welding therefore ensures both the electrical connections and the mechanical retention of the connector (4) on the card (1).

Une extrémité de connexion (10) d'une carte fille (11) peut alors être insérée dans le conduit (5), cette carte fille comportant, dans le cas présent sur ses deux faces, des plages conductrices (12) venant en appui sur les contacts électriques (6) du connecteur (3) et assurant ainsi le maintien de la carte fille (11) sur la carte mère (1) et les connexions électriques entre ces deux cartes.A connection end (10) of a daughter card (11) can then be inserted into the conduit (5), this daughter card comprising, in the present case on its two faces, conductive pads (12) bearing on the electrical contacts (6) of the connector (3) and thus ensuring the maintenance of the daughter card (11) on the motherboard (1) and the electrical connections between these two cards.

L'extrémité de connexion (10) de la carte fille (11) présente par ailleurs une fente de détrompage (22) dans laquelle peut s'engager la nervure (20) lorsque la carte fille est présentée dans le bon sens à l'entrée du conduit (5).The connection end (10) of the daughter card (11) also has a keying slot (22) into which the rib (20) can engage when the daughter card is presented in the correct direction at the entrance. of the duct (5).

La figure (2) montre la carte fille (11) en traits pleins présentée pour être engagée dans le connecteur (4) du côté des soudures, c'est à dire du côté opposé aux composants montés sur la carte (1). Cette même carte fille (11) est montrée en traits mixtes présentée de l'autre côté de la carte (1). La carte fille (11) peut par conséquent être montée de l'un ou l'autre des côtés de la carte (1).Figure (2) shows the daughter card (11) in solid lines presented to be engaged in the connector (4) on the side of the welds, that is to say on the side opposite to the components mounted on the card (1). This same daughter card (11) is shown in dashed lines presented on the other side of the card (1). The daughter card (11) can therefore be mounted on either side of the card (1).

La souplesse des contacts (6) assure un bon contact électrique avec les plages conductrices (12) lorsque la carte fille est en place dans le connecteur (4).The flexibility of the contacts (6) ensures good electrical contact with the conductive pads (12) when the daughter card is in place in the connector (4).

La figure (5) représente un autre mode de réalisation d'un connecteur (4′) selon l'invention comportant un corps (3′) similaire au corps (3) du connecteur (4), ce corps (3′) formant un conduit traversant (5′) sur les parois duquel sont disposés des contacts électriques souples (6′).Figure (5) shows another embodiment of a connector (4 ′) according to the invention comprising a body (3 ′) similar to the body (3) of the connector (4), this body (3 ′) forming a through conduit (5 ′) on the walls of which flexible electrical contacts (6 ′) are arranged.

Toutefois, dans le cas présent les contacts électriques (6′) sont reliés par des conducteurs (7) traversant le corps (3) horizontalement pour ressortir sensiblement horizontalement aux extrémités des ailes du T formé par le connecteur. Les extrémités dépassantes des conducteurs (7′) sont alors soudées manuellement par des soudures de type CMS (composant monté en surface) sur des rubans conducteurs (9′) de la carte (1′).However, in the present case the electrical contacts (6 ′) are connected by conductors (7) passing through the body (3) horizontally so as to come out substantially horizontally at the ends of the wings of the T formed by the connector. The protruding ends of the conductors (7 ′) are then manually welded by soldering of the CMS type (surface-mounted component) on conductive tapes (9 ′) of the card (1 ′).

On a représenté aux dessins des connecteurs présentant deux rangées de contacts, mais il serait évidemment possible de n'en prévoir qu'une seule d'un des côté du connecteur.There are shown in the drawings connectors having two rows of contacts, but it would obviously be possible to provide only one of one side of the connector.

Claims (5)

Connecteur électrique pour fixer et connecter une carte fille (11) à une carte mère (1), caractérisé par le fait qu'il comprend un corps (3) formant un conduit traversant (5) pour la réception d'une partie (10) de la carte fille munie de pistes (12) de contact, ledit corps étant agencé pour être inséré dans une découpe (2) de la carte mère, des contacts électriques (6) étant disposés sur les parois dudit conduit pour coopérer avec lesdites pistes de la carte fille, et étant électriquement reliés à des broches (7′ ; 8) de liaison à des pistes (9) de la carte mère.Electrical connector for fixing and connecting a daughter board (11) to a mother board (1), characterized in that it comprises a body (3) forming a through conduit (5) for the reception of a part (10) of the daughter card provided with contact tracks (12), said body being arranged to be inserted in a cutout (2) of the mother board, electrical contacts (6) being arranged on the walls of said conduit to cooperate with said tracks the daughter board, and being electrically connected to pins (7 ′; 8) connecting to tracks (9) of the mother board. Connecteur selon la revendication 1, dans lequel les broches de liaison (8) s'étendent perpendiculairement au connecteur pour être reliées aux pistes de la carte mère par des soudures classiques.The connector of claim 1, wherein the connecting pins (8) extend perpendicular to the connector to be connected to the tracks of the motherboard by conventional welds. Connecteur selon la revendication 1, dans lequel les broches de liaison (7′) s'étendent dans le plan du connecteur pour être reliées aux pistes de la carte mère par des soudures de type CMS (composant monté en surface).Connector according to claim 1, in which the connecting pins (7 ′) extend in the plane of the connector to be connected to the tracks of the motherboard by soldering of the CMS type (surface-mounted component). Connecteur selon l'une quelconque des revendications 1 à 3, dans lequel le corps comporte une saillie de détrompage (21) agencée pour s'engager dans une forme correspondante de la découpe (2).Connector according to any one of Claims 1 to 3, in which the body has a keying projection (21) arranged to engage in a corresponding shape of the cutout (2). Connecteur selon l'une quelconque des revendications 1 à 4, comportant une nervure de détrompage (20) traversant transversalement ledit conduit pour s'engager dans une fente de détrompage correspondante de la carte fille.Connector according to any one of claims 1 to 4, comprising a keying rib (20) transversely passing through said conduit to engage in a corresponding keying slot on the daughter card.
EP19920401118 1991-04-25 1992-04-21 Electrical connector for fixing and connecting a daughter-board to a mother-board Expired - Lifetime EP0511077B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9105116 1991-04-25
FR9105116A FR2675955B1 (en) 1991-04-25 1991-04-25 ELECTRICAL CONNECTOR FOR FIXING AND CONNECTING A GIRL CARD TO A MOTHER CARD.

Publications (2)

Publication Number Publication Date
EP0511077A1 true EP0511077A1 (en) 1992-10-28
EP0511077B1 EP0511077B1 (en) 1996-03-06

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EP19920401118 Expired - Lifetime EP0511077B1 (en) 1991-04-25 1992-04-21 Electrical connector for fixing and connecting a daughter-board to a mother-board

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EP (1) EP0511077B1 (en)
CA (1) CA2066987A1 (en)
DE (1) DE69208720D1 (en)
FR (1) FR2675955B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935725A (en) * 1955-08-30 1960-05-03 Fox Benjamin Electrical connector for printed circuit board
US4869672A (en) * 1989-04-17 1989-09-26 Amp Incorporated Dual purpose card edge connector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935725A (en) * 1955-08-30 1960-05-03 Fox Benjamin Electrical connector for printed circuit board
US4869672A (en) * 1989-04-17 1989-09-26 Amp Incorporated Dual purpose card edge connector

Also Published As

Publication number Publication date
EP0511077B1 (en) 1996-03-06
DE69208720D1 (en) 1996-04-11
FR2675955A1 (en) 1992-10-30
CA2066987A1 (en) 1992-10-26
FR2675955B1 (en) 1993-08-20

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