EP0068196B1 - Zero insertion force connector for a printed circuit board - Google Patents

Zero insertion force connector for a printed circuit board Download PDF

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Publication number
EP0068196B1
EP0068196B1 EP82105011A EP82105011A EP0068196B1 EP 0068196 B1 EP0068196 B1 EP 0068196B1 EP 82105011 A EP82105011 A EP 82105011A EP 82105011 A EP82105011 A EP 82105011A EP 0068196 B1 EP0068196 B1 EP 0068196B1
Authority
EP
European Patent Office
Prior art keywords
connector
slot
contacts
card
contact
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
Application number
EP82105011A
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German (de)
French (fr)
Other versions
EP0068196A1 (en
Inventor
André Petit
Daniel Jamet
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
Compagnie Industrielle de Telecommunication CIT Alcatel 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 Compagnie Industrielle de Telecommunication CIT Alcatel SA filed Critical Compagnie Industrielle de Telecommunication CIT Alcatel SA
Publication of EP0068196A1 publication Critical patent/EP0068196A1/en
Application granted granted Critical
Publication of EP0068196B1 publication Critical patent/EP0068196B1/en
Expired 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
    • 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
    • H01R12/82—Coupling devices connected with low or zero insertion force
    • H01R12/85—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures
    • H01R12/88—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures acting manually by rotating or pivoting connector housing parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/193—Means for increasing contact pressure at the end of engagement of coupling part, e.g. zero insertion force or no friction

Definitions

  • a zero insertion force connector for a printed circuit board is provided.
  • the individual contacts are simultaneously put in the closed position or in the open position, to come to apply with pressure on the printed circuit board or to move away from it, under the action of a control member. .
  • the contacts are arranged in pairs to cooperate with contact points arranged on both sides of the printed circuit board.
  • the block forming the connector body then has, in addition to the groove, a series of cavities transverse to the groove, each serving as a housing for a pair of contacts kept fixed in the bottom of the connector body which they pass through.
  • the pin has the shape of a rod of generally rectangular section with rounded angles rotated for the simultaneous actuation in opening or closing of the contacts.
  • this connector is intended to receive, from the side or the top of the groove, the edge of the printed circuit board.
  • an arm is mounted on the rod and rotates with it to block the end of the groove.
  • the present invention relates to a connector of the type of this known connector. It aims to remedy certain drawbacks that this known connector has by ensuring permanent guiding of the printed circuit board, whether this card is inserted from the side or the top of the slot, while limiting the maximum possible insertion of this for which the card is in position in the connector. In addition, it also aims to achieve a connector of simple construction and very flexible design so as to respond without difficulty to different possible arrangements of the contact points printed along the edge of the card, on one and the other of its faces.
  • a connector with zero insertion force for printed circuit board comprising a connector body consisting of a U-section slide closed by a base and equipped with a longitudinal groove for the insertion of the card, a plurality of contacts having first end portions fixed, opposite the groove, on said base of said connector body called contact carrier bar and second end portions intended to come into contact with the card extending substantially on the length of the groove in at least one row and comprising, housed in the connector body, means for simultaneously controlling the opening or closing of said contacts constituted by a rotary pin, of generally cylindrical shape and having substantially two opposite flats along its length, against which apply respective intermediate portions of said contacts for their opening or closing by simple rotation of the spindle, characterized in that the two branches of the slide are joined internally by a plurality of partitions each having a first rectangular cut-out defining, along the length of the connector, the depth of said longitudinal groove.
  • said partitions are joined together by small bridges extending the bottom of each first cut delimiting the groove, making it possible to obtain this groove with a continuous bottom.
  • each of said partitions has a second cutout with a rounded bottom opposite the groove and cooperates with said contact-bar of inverted T-profile inserted and fixed in the slide, the central vertical jamb of which forms a longitudinal gutter delimiting with said second cutting of each of the partitions housing said pin.
  • first and the second terminal portion of each of the contacts extend respectively on either side of the median longitudinal plane of said groove.
  • the connector comprises a slide 100, a seems to have contacts such as 120, a contact carrier bar 140 and a rotary pin 150 for controlling the opening or closing of all of the contacts.
  • the slide 100 is assembled on the contact carrier bar 140 and constitutes with it the connector body with a partially hollowed-out internal part in which the contacts 120 and the rotary control pin 150 are housed.
  • the slide is in the general form of an inverted U profile with a split base, made of a plastic material and obtained from molding, which breaks down into two branches 101 and 102, defining in section two L placed in opposition but not joined , the small bases of the L thus being in the same plane but slightly spaced from each other by delimiting the width of a longitudinal groove 110 which the slide presents for guiding and inserting a printed circuit board shown diagrammatically 130.
  • the two branches 101 and 102 are joined by a set of partitions 104 delimiting between them a series of cells 105 arranged in regular pitch on the internal wall of each of the branches 101 and 102, which serve as housings for the contacts 120.
  • partitions 104 each have, at the space between the small bases of the L-shaped branches 101 and 102, a first rectangular cutout, to form with this space said groove 110 thus limited laterally and in depth for receiving an edge of the printed circuit board 130.
  • These partitions 104 are also joined together, in line with this space between the small bases of the L-shaped formwork 101 and 102 in the internal part of the connector by small bridges 106 extending the bottom of the rectangular cutouts in the partitions, to obtain the groove 110 with a flat and continuous bottom.
  • the partitions each have another cutout 107, with a rounded bottom, essentially serving with the recessed adjoining parts for housing the spindle 150.
  • the two branches 101 and 102 also each have internally, at the end of the vertical leg of the L, a longitudinal groove 108 for snapping onto the contact carrier bar 140.
  • the arms 101 and 102 are joined together by defining front walls each equipped with an external boss 109 which will, as shown diagrammatically in FIG. 3, maintain the slide between two fixing angles 160 perforated receiving these bosses 109 and ensuring their fixing.
  • the external boss 109 at the level of the front face of the slide carries a passage 119 for the pin 150 communicating with the cutout with rounded bottom 107 defining the housing of this pin 150 and that the slide internally has a semi-circular lug 115 for positioning and longitudinal locking of the spindle 150.
  • the contacts 120 housed in this slide 100 are carried by the contact carrier bar 140.
  • These contacts are each in the general form of a flat blade, one of which is a first terminal portion 121 substantially rectilinear has lateral protrusions forming two small tabs 122, for its mounting and retention in the contact carrier bar and ends substantially in the form of a contact pin 123, the other opposite terminal portion 124 is substantially in S and ensures the contact function of the leaf-spring type with the printed circuit board 130 and the intermediate portion 125 of which is itself arcuate to come to cooperate with the pin 150 for actuation in opening or closing of the connector.
  • the contact carrier bar 140 is in the general form of an inverted T profile with short and wide central jamb, produced like the slide 100 on which it is assembled by constituting a base, advantageously made of plastic, and obtained from molding. .
  • This contact carrier bar 140 has a row of holes 141 formed at regular pitch in the horizontal branch of the T, on each side of the central vertical jamb designated by the reference 142.
  • the terminal pins 123 of the contacts are inserted through these holes 141 and protrude from the contact carrier bar 140, while the contacts are fixed there and held by the tabs 122 above.
  • These holes 141 belonging to one of the two rows of holes on the contact carrier bar 140, are arranged opposite the intervals between holes in the other row, substantially midway between the holes in this other row.
  • this horizontal branch respectively have two sets of longitudinal ribs 148 complementary to the grooves 108 of the slide 100 for their assembly by mutual snap-fastening.
  • the central vertical jamb 142 longitudinally forms a semi-circular gutter 143 which serves as a support surface for the spindle 150 and which, when the slide 100 and the contact carrier bar 140 are assembled, delimits with the rounded bottom of the cutouts 107 partitions 104 the housing then made substantially circular for this pin 150.
  • the pin 150 also made of plastic, is slightly longer than that of the slide 100 and the contact carrier bar 140. It forms or has, at one end which is the front face of the connector, a cam 151 from which the connector is actuated during opening or closing.
  • the cam 151 comprises a slot 152, called the card entry slot 130, placed in the extension of the groove 110 of the slide 100 by a suitable rotation of the cam.
  • This cam 151 is also of non-uniform thickness to define a rear profile 153 in a ramp as illustrated in FIGS. 2 and 3 in particular, facilitating the rotation of the cam after placing the card 130 in the groove 110 and causing then the longitudinal blocking of the card in the groove.
  • the spindle 150 controlled in rotation by the cam 151 is of generally cylindrical shape and has, over at least the length of its part internal to the slide and the base assembled, two opposite flats 154. It finally has, in the vicinity of the cam 151, a peripheral groove 155 ensuring, as visible in FIG. 3, with the semi-circular lug 115 of the slide 100, the locking in longitudinal positioning of the pin 150 in the body of the connector.
  • this pin 150 receives on its periphery, at the flats 154, the arcuate intermediate portions 125 of the contacts 120, which partially bypass, these intermediate portions 125 applying without pressure against the flats then parallel to the vertical legs of the two branches in L 101 and 102 of the slide. It will therefore be understood, with reference to FIG. 1 and to FIG.
  • the spindle 150 can receive alternately on one side and the other of its median plane passing through the axis of the groove 110 the intermediate portions of the contacts mounted in the successive holes 141 of the two rows of holes of the contact carrier bar and that the terminal portions 124 in S of these same contacts will be arranged inversely with respect to this median plane and will define two rows of contacts with the card 130.
  • the contacts 120 housed in the cells defined by the partitions 104 on one of the branches 101 or 102 of the slide will come, by pressing against the pin 150 and bypassing it substantially on a quarter of its periphery, be housed in the cells defined by the same partitions on the other branch 102 or 101 of the slide on the side of the groove 110.
  • FIGS. 4A and 4B the connector commands have been shown diagrammatically, in the open position for inserting the card 130 and in the closed position for which the card is locked in the connector, these two positions of opening and closing being given respectively in the two sections of FIGS. 5A and 5B.
  • the front end of the edge of the card housed in the groove will advantageously end at a bevel and will then cooperate with the profile rear of the cam, this not illustrated bevel being formed on the end 133 of the front face of the card, not covered with a grip strip 132 (FIG. 4A).
  • the end portions 121 of the contacts 120 which form contact pins, pass through the contact carrier bar 140 and overflow on the external face of the contact carrier bar assembled on the slide 100. They allow the connection of the circuit carried by the card 130 to one or more other circuits carried by similar cards through an interconnection circuit printed on an additional card. 170, the metallized holes 171 of which allow it to be force-fitted, without soldering, to the pins of the connector, ensuring, by the tracks 172 of the intercabling circuit, the appropriate connections.
  • the arrangement of the contacts 120 in the slide 100 associated with their control does not allow the entry of the card 130 only when the connector is open, that is to say when the contacts 120 are all set back from the groove 110 and therefore well protected against any damage in the slide.
  • the insertion of the card 130 through the slot 152 of the cam 151 is advantageous in terms of security as regards the positions of the contacts 120 in the slide, it is also possible to insert the card 130 transversely to the groove 110 ensuring the proper position of the spindle 150, by the cam 151 or other similar control.

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  • Coupling Device And Connection With Printed Circuit (AREA)

Description

L'invention porte sur un connecteur à force d'insertion nulle pour carte de circuit imprimé.A zero insertion force connector for a printed circuit board is provided.

Dans les connecteurs de ce type, les contacts individuels sont simultanément mis en position fermée ou en position ouverte, pour venir s'appliquer avec pression sur la carte de circuit imprimé ou s'en écarter, sous l'action d'un organe de commande.In connectors of this type, the individual contacts are simultaneously put in the closed position or in the open position, to come to apply with pressure on the printed circuit board or to move away from it, under the action of a control member. .

Un connecteur de ce type est décrit, par exemple, dans le document FR-A nr. 2 053 359. Ce document décrit un connecteur comportant:

  • - un bloc, formant le corps du connecteur, à rainure longitudinale de réception de l'un des bords d'une carte de circuit imprimé comportant des points de contacts le long de ce bord,
  • - une pluralité de contacts fixés dans le bloc et ayant des organes de contact normalement cambrés pour former un contact physique et électrique avec les points de contact de ladite carte respectivement,
  • - une broche de calage des organes de contact dans une position où ils n'entrent pas en contact avec ladite carte lors de l'insertion de celle-ci dans la rainure
  • - et un organe de manoeuvre de la broche pour amener en contact les organes de contact et les points de contact respectifs lorsque la carte est en position dans la rainure.
A connector of this type is described, for example, in the document FR-A nr. 2,053,359. This document describes a connector comprising:
  • - a block, forming the body of the connector, with a longitudinal groove for receiving one of the edges of a printed circuit board comprising contact points along this edge,
  • a plurality of contacts fixed in the block and having normally arched contact members to form physical and electrical contact with the contact points of said card respectively,
  • - a wedge pin for the contact members in a position where they do not come into contact with said card when it is inserted into the groove
  • - And a spindle operating member for bringing the contact members and the respective contact points into contact when the card is in position in the groove.

Dans ce connecteur, les contacts sont disposées par paires pour coopérer avec des points de contact disposés sur les deux faces de la carte de circuit imprimé. Le bloc formant le corps de connecteur présente alors, outre la rainure, une série de cavités transversales à la rainure, servant chacune de logement à une paire de contacts maintenus fixés dans le fond du corps de connecteur qu'ils traversent. La broche a la forme d'une tige de section générale rectangulaire à angles arrondis mise en rotation pour l'actionnement simultané en ouverture ou fermeture des contacts.In this connector, the contacts are arranged in pairs to cooperate with contact points arranged on both sides of the printed circuit board. The block forming the connector body then has, in addition to the groove, a series of cavities transverse to the groove, each serving as a housing for a pair of contacts kept fixed in the bottom of the connector body which they pass through. The pin has the shape of a rod of generally rectangular section with rounded angles rotated for the simultaneous actuation in opening or closing of the contacts.

Enfin, ce connecteur est destiné à recevoir, par le côté ou par le sommet de la rainure, le bord de la carte de circuit imprimé. Pour éviter une insertion ou une extraction de la carte alors que les contacts sont en position fermée, un bras est monté sur la tige et tourne avec elle pour bloquer l'extrémité de la rainure.Finally, this connector is intended to receive, from the side or the top of the groove, the edge of the printed circuit board. To avoid insertion or extraction of the card while the contacts are in the closed position, an arm is mounted on the rod and rotates with it to block the end of the groove.

La présente invention porte sur un connecteur du type de ce connecteur connu. Elle a pour but de remédier à certains inconvénients que présente ce connecteur connu en assurant un guidage permanent de la carte de circuit imprimé, que cette carte soit insérée par le côté ou le sommet de la fente, tout en limitant l'insertion maximale possible de celle-ci pour laquelle la carte est en position dans le connecteur. De plus, elle a également pour but de réaliser un connecteur de réalisation simple et de conception très souple de manière à répondre sans difficultés à différents agencements possibles des points de contact imprimés le long du bord de la carte, sur l'une et l'autre de ses faces.The present invention relates to a connector of the type of this known connector. It aims to remedy certain drawbacks that this known connector has by ensuring permanent guiding of the printed circuit board, whether this card is inserted from the side or the top of the slot, while limiting the maximum possible insertion of this for which the card is in position in the connector. In addition, it also aims to achieve a connector of simple construction and very flexible design so as to respond without difficulty to different possible arrangements of the contact points printed along the edge of the card, on one and the other of its faces.

Elle a pour objet un connecteur à force d'insertion nulle pour carte de circuit imprimé comportant un corps de connecteur constitué d'une glissière de section en U fermée par une embase et équipé d'une rainure longitudinale pour l'insertion de la carte, une pluralité de contacts présentant des premières portions terminales fixées, à l'opposé de la rainure, sur ladite embase dudit corps de connecteur dite barre porte-contacts et des secondes portions terminales destinées à venir en contact avec la carte s'étendant sensiblement sur la longueur de la rainure selon au moins une rangée et comportant, logés dans le corps connecteurs, des moyens de commande simultanée en ouverture ou en fermeture desdits contacts constitués par une broche rotative, de forme générale cylindrique et présentant sensiblement sur sa longueur deux méplats opposés, contre laquelle s'appliquent des portions intermédiaires respectives desdits contacts pour leur ouverture ou fermeture par simple rotation de la broche, caractérisé en ce que les deux branches de la glissière sont réunies intérieurement par une pluralité de cloisons présentant chacune une première découpe rectangulaire délimitant, sur la longueur du connecteur, la profondeur de ladite rainure longitudinale.It relates to a connector with zero insertion force for printed circuit board comprising a connector body consisting of a U-section slide closed by a base and equipped with a longitudinal groove for the insertion of the card, a plurality of contacts having first end portions fixed, opposite the groove, on said base of said connector body called contact carrier bar and second end portions intended to come into contact with the card extending substantially on the length of the groove in at least one row and comprising, housed in the connector body, means for simultaneously controlling the opening or closing of said contacts constituted by a rotary pin, of generally cylindrical shape and having substantially two opposite flats along its length, against which apply respective intermediate portions of said contacts for their opening or closing by simple rotation of the spindle, characterized in that the two branches of the slide are joined internally by a plurality of partitions each having a first rectangular cut-out defining, along the length of the connector, the depth of said longitudinal groove.

Selon une caractéristique d'une mise en oeuvre préférée de l'invention lesdites cloisions sont réunies entre elles par de petits ponts prolongeant le fond de chaque première découpe délimitant la rainure, permettant l'obtention de cette rainure à fond continu.According to a characteristic of a preferred implementation of the invention, said partitions are joined together by small bridges extending the bottom of each first cut delimiting the groove, making it possible to obtain this groove with a continuous bottom.

De préférence chacune desdites cloisons présente une seconde découpe à fond arrondi à l'opposé de la rainure et coopère avec ladite barre porte-contacts de profilé en T renversé inséré et fixé dans la glissière dont le jambage vertical central forme une gouttière longitudinale délimitant avec ladite seconde découpe de chacune des cloisons le logement de ladite broche.Preferably, each of said partitions has a second cutout with a rounded bottom opposite the groove and cooperates with said contact-bar of inverted T-profile inserted and fixed in the slide, the central vertical jamb of which forms a longitudinal gutter delimiting with said second cutting of each of the partitions housing said pin.

Avantageusement, la première et la seconde portion terminale de chacun des contacts s'étendent respectivement de part et d'autre du plan longitudinale médian de ladite rainure.Advantageously, the first and the second terminal portion of each of the contacts extend respectively on either side of the median longitudinal plane of said groove.

L'invention sera décrite ci-après plus en détail en rapport avec un mode préférentiel de réalisation donné à titre d'exemple et illustré dans les dessins ci-annexés. Dans ces dessins:

  • - la figure 1 est une vue partielle en perspective éclatée du connecteur selon l'invention,
  • - la figure 2 est une vue de dessus du connecteur selon la figure 1,
  • - la figure 3 est une vue en élévation avec une coupe longitudinale partielle du même connecteur sur la partie droite et une coupe longitudinale partielle du corps du même connecteur sur la partie de gauche,
  • - les figures 4A et 4B sont deux vues en perspective partielle de la partie avant de commande de ce connecteur en ouverture et en fermeture respectivement,
  • - les figures 5A et 5B sont deux vues en coupe du connecteur selon la figure 1, correspondant aux commandes en ouverture et en fermeture respectivement du connecteur.
The invention will be described below in more detail in connection with a preferred embodiment given by way of example and illustrated in the accompanying drawings. In these drawings:
  • FIG. 1 is a partial exploded perspective view of the connector according to the invention,
  • FIG. 2 is a top view of the connector according to FIG. 1,
  • FIG. 3 is an elevation view with a partial longitudinal section of the same connector on the right part and a partial longitudinal section of the body of the same connector on the left part,
  • FIGS. 4A and 4B are two partial perspective views of the front part for controlling this connector during opening and closing respectively,
  • - Figures 5A and 5B are two sectional views of the connector according to Figure 1, corresponding to the opening and closing commands respectively of the connector.

Ainsi qu'il apparaît en regard de ces figures, le connecteur comporte une glissière 100, un ensemble de contacts tels que 120, une barre porte-contacts 140 et une broche rotative 150 pour la commande d'ouverture ou de fermeture de l'ensemble des contacts.As it appears opposite these figures, the connector comprises a slide 100, a seems to have contacts such as 120, a contact carrier bar 140 and a rotary pin 150 for controlling the opening or closing of all of the contacts.

La glissière 100 s'assemble sur la barre porte-contacts 140 et constitue avec elle le corps du connecteur à partie interne partiellement évidée dans laquelle sont logés les contacts 120 et la broche rotative de commande 150.The slide 100 is assembled on the contact carrier bar 140 and constitutes with it the connector body with a partially hollowed-out internal part in which the contacts 120 and the rotary control pin 150 are housed.

La glissière se présente sous la forme générale d'un profilé en U renversé à base fendue, réalisé en une matière plastique et issu de moulage, qui se décompose en deux branches 101 et 102, définissant en section deux L mis en opposition mais non jointifs, les petites bases des L étant ainsi dans le même plan mais légèrement écartées l'une de l'autre en délimitant la largeur d'une rainure longitudinale 110 que présente la glissière pour le guidage et l'insertion d'une carte de circuit imprimé schématisé 130. Les deux branches 101 et 102 sont réunies par un ensemble de cloisons 104 délimitant entre elles une suite d'alvéoles 105 disposés à pas régulier sur la paroi interne de chacune des branches 101 et 102, qui servent de logements aux contacts 120.The slide is in the general form of an inverted U profile with a split base, made of a plastic material and obtained from molding, which breaks down into two branches 101 and 102, defining in section two L placed in opposition but not joined , the small bases of the L thus being in the same plane but slightly spaced from each other by delimiting the width of a longitudinal groove 110 which the slide presents for guiding and inserting a printed circuit board shown diagrammatically 130. The two branches 101 and 102 are joined by a set of partitions 104 delimiting between them a series of cells 105 arranged in regular pitch on the internal wall of each of the branches 101 and 102, which serve as housings for the contacts 120.

Ces cloisons 104 présentent chacune, au droit de l'espace entre les petites bases des branches en L 101 et 102, une première découpe rectangulaire, pour former avec cet espace ladite rainure 110 ainsi limitée latéralement et en profondeur pour la réception d'un bord de la carte de circuit imprimé 130. Ces cloisons 104 sont également réunies entre elles, au droit de cet espace entre les petites bases des banches en L 101 et 102 dans la partie interne du connecteur par de petits ponts 106 prolongeant le fond des découpes rectangulaires dans les cloisons, pour l'obtention de la rainure 110 à fond plat et continu.These partitions 104 each have, at the space between the small bases of the L-shaped branches 101 and 102, a first rectangular cutout, to form with this space said groove 110 thus limited laterally and in depth for receiving an edge of the printed circuit board 130. These partitions 104 are also joined together, in line with this space between the small bases of the L-shaped formwork 101 and 102 in the internal part of the connector by small bridges 106 extending the bottom of the rectangular cutouts in the partitions, to obtain the groove 110 with a flat and continuous bottom.

A l'opposé de la rainure 110, les cloisons présentent chacune une autre découpe 107, à fond arrondi, servant essentiellement avec les parties évidées attenantes de logement à la broche 150.Opposite the groove 110, the partitions each have another cutout 107, with a rounded bottom, essentially serving with the recessed adjoining parts for housing the spindle 150.

Les deux branches 101 et 102 présentent aussi chacune intérieurement, au niveau de l'extrémité du jambage vertical du L, un rainurage longitudinal 108 d'encliquetage sur la barre porte-contacts 140.The two branches 101 and 102 also each have internally, at the end of the vertical leg of the L, a longitudinal groove 108 for snapping onto the contact carrier bar 140.

Aux deux extrémités de la glissière, les branches 101 et 102 sont réunies en définissant des parois frontales chacune équipée d'un bossage externe 109 qui permettra, ainsi que schématisé dans la figure 3 le maintien de la glissière entre deux cornières de fixation 160 perforées recevant ces bossage 109 et assurant leur fixation.At the two ends of the slide, the arms 101 and 102 are joined together by defining front walls each equipped with an external boss 109 which will, as shown diagrammatically in FIG. 3, maintain the slide between two fixing angles 160 perforated receiving these bosses 109 and ensuring their fixing.

Enfin, pour compléter, la description de cette glissière 100, on notera que sa rainure longitudinale 110, à une extrémité formant la face avant de la glissière, est ouverte en V sur la face frontale de la glissière, ainsi que représenté dans la figure 2 en 111, tandis qu'à l'extrémité opposée elle se termine dans une boutonnière 112, simplement ouverte sur les deux petites bases des branches 101 et 102, dans laquelle est logé un tampon amortisseur 113 pour la carte 130.Finally, to complete the description of this slide 100, it will be noted that its longitudinal groove 110, at one end forming the front face of the slide, is open in V on the front face of the slide, as shown in FIG. 2 at 111, while at the opposite end it ends in a buttonhole 112, simply open on the two small bases of the branches 101 and 102, in which is housed a damping pad 113 for the card 130.

On notera encore, en regard de la figure 3, que le bossage externe 109 au niveau de la face avant de la glissière, porte un passage 119 pour la broche 150 communiquant avec la découpe à fond arrondi 107 définissant le logement de cette broche 150 et que la glissière présente intérieurement un ergot semi-circulaire 115 de positionnement et de blocage longitudinal de la broche 150.It will also be noted, with reference to FIG. 3, that the external boss 109 at the level of the front face of the slide, carries a passage 119 for the pin 150 communicating with the cutout with rounded bottom 107 defining the housing of this pin 150 and that the slide internally has a semi-circular lug 115 for positioning and longitudinal locking of the spindle 150.

Ainsi qu'il apparaît clairement notamment en regard de la figure 1, les contacts 120 logés dans cette glissière 100 sont portés par la barre porte-contacts 140. Ces contacts se présentent chacun sous la forme générale d'une lame plate, dont une première portion terminale 121 sensiblement rectiligne présente des excroissances latérales formant deux petites pattes 122, pour son montage et sa retenue dans la barre porte-contacts et se termine sensiblement en forme de broche de contact 123, dont l'autre portion terminale opposée 124 est sensiblement en S et assure la fonction de contact du type lame-ressort avec la carte de circuit imprimé 130 et dont la portion intermédiaire 125 est elle-même arquée pour venir coopérer avec la broche 150 pour l'actionnement en ouverture ou en fermeture du connecteur.As it appears clearly in particular with regard to FIG. 1, the contacts 120 housed in this slide 100 are carried by the contact carrier bar 140. These contacts are each in the general form of a flat blade, one of which is a first terminal portion 121 substantially rectilinear has lateral protrusions forming two small tabs 122, for its mounting and retention in the contact carrier bar and ends substantially in the form of a contact pin 123, the other opposite terminal portion 124 is substantially in S and ensures the contact function of the leaf-spring type with the printed circuit board 130 and the intermediate portion 125 of which is itself arcuate to come to cooperate with the pin 150 for actuation in opening or closing of the connector.

La barre porte-contacts 140 se présente sous la forme générale d'un profilé en T renversé à jambage central court et large, réalisé comme la glissière 100 sur laquelle il est assemblé en constituant une embase, avantageusement en matière plastique, et issu de moulage. Cette barre porte-contacts 140 présente une rangée de trous 141 formés à pas régulier dans la branche horizontale du T, de chaque côté du jambage vertical central désigné par la référence 142. Les broches terminales 123 des contacts sont insérées à travers ces trous 141 et débordent de la barre porte-contacts 140, tandis que les contacts y sont fixés et maintenus par les pattes 122 précitées. Ces trous 141, appartenant à l'une des deux rangées de trous sur la barre porte-contacts 140, sont disposés en regard des intervalles entre trous de l'autre rangée, sensiblement à mi-distance entre les trous de cette autre rangée. Les deux bords d'extrémité de cette branche horizontale présentent respectivement deux ensembles de nervures longitudinales 148 complémentaires des rainurages 108 de la glissière 100 pour leur assemblage par encliquetage mutuel. Enfin le jambage vertical central 142 forme longitudinalement une gouttière semi-circulaire 143 qui sert de surface d'appui à la broche 150 et qui, lorsque la glissière 100 et la barre porte-contacts 140 sont assemblées, délimite avec le fond arrondi des découpes 107 des cloisons 104 le logement rendu alors sensiblement circulaire pour cette broche 150.The contact carrier bar 140 is in the general form of an inverted T profile with short and wide central jamb, produced like the slide 100 on which it is assembled by constituting a base, advantageously made of plastic, and obtained from molding. . This contact carrier bar 140 has a row of holes 141 formed at regular pitch in the horizontal branch of the T, on each side of the central vertical jamb designated by the reference 142. The terminal pins 123 of the contacts are inserted through these holes 141 and protrude from the contact carrier bar 140, while the contacts are fixed there and held by the tabs 122 above. These holes 141, belonging to one of the two rows of holes on the contact carrier bar 140, are arranged opposite the intervals between holes in the other row, substantially midway between the holes in this other row. The two end edges of this horizontal branch respectively have two sets of longitudinal ribs 148 complementary to the grooves 108 of the slide 100 for their assembly by mutual snap-fastening. Finally, the central vertical jamb 142 longitudinally forms a semi-circular gutter 143 which serves as a support surface for the spindle 150 and which, when the slide 100 and the contact carrier bar 140 are assembled, delimits with the rounded bottom of the cutouts 107 partitions 104 the housing then made substantially circular for this pin 150.

La broche 150 également en matière plastique est de longueur légèrement supérieure à celle de la glissière 100 et de la barre porte-contacts 140. Elle forme ou présente, à une extrémité qui est la face avant du connecteur une came 151 à partir de laquelle le connecteur est actionné en ouverture ou en fermeture. La came 151 comporte une fente 152, dite fente d'entrée de la carte 130, mise dans le prolongement de la rainure 110 de la glissière 100 par une rotation convenable de la came. Cette came 151 est également d'épaisseur non uniforme pour définir un profilé arrière 153 en rampe tel qu'illustré dans les figures 2 et 3 notamment, facilitant la rotation de la came après mise en place de la carte 130 dans la rainure 110 et provoquant ensuite le blocage longitudinal de la carte dans la rainure.The pin 150, also made of plastic, is slightly longer than that of the slide 100 and the contact carrier bar 140. It forms or has, at one end which is the front face of the connector, a cam 151 from which the connector is actuated during opening or closing. The cam 151 comprises a slot 152, called the card entry slot 130, placed in the extension of the groove 110 of the slide 100 by a suitable rotation of the cam. This cam 151 is also of non-uniform thickness to define a rear profile 153 in a ramp as illustrated in FIGS. 2 and 3 in particular, facilitating the rotation of the cam after placing the card 130 in the groove 110 and causing then the longitudinal blocking of the card in the groove.

La broche 150 commandée en rotation par la came 151 est de forme générale cylindrique et présente, sur au moins la longueur de sa partie intérieure à la glissière et l'embase assemblées, deux méplats opposés 154. Elle présente enfin, au voisinage de la came 151, une gorge périphérique 155 assurant, ainsi que visible dans la figure 3, avec l'ergot semi-circulaire 115 de la glissière 100, le blocage en positionnement longitudinal de la broche 150 dans le corps du connecteur.The spindle 150 controlled in rotation by the cam 151 is of generally cylindrical shape and has, over at least the length of its part internal to the slide and the base assembled, two opposite flats 154. It finally has, in the vicinity of the cam 151, a peripheral groove 155 ensuring, as visible in FIG. 3, with the semi-circular lug 115 of the slide 100, the locking in longitudinal positioning of the pin 150 in the body of the connector.

Lors de l'assemblage de la glissière 100 et de la barre porte-contacts 140 sur laquelle sont montés les contacts 120, cette broche 150 reçoit sur sa périphérie, au niveau des méplats 154, les portions intermédiaires arquées 125 des contacts 120, qui la contournent partiellement, ces portions intermédiaires 125 s'appliquant sans pression contre les méplats alors parallèles aux jambages verticaux des deux branches en L 101 et 102 de la glissière. On comprendra donc, en regard de la figure 1 et de la figure 3 notamment, que la broche 150 peut recevoir alternativement d'un côté et de l'autre de son plan médian passant par l'axe de la rainure 110 les portions intermédiaires des contacts montés dans les trous 141 successifs des deux rangées de trous de la barre porte-contacts et que les portions terminales 124 en S de ces mêmes contacts seront disposées inversement par rapport à ce plan médian et définiront deux rangées de contacts avec la carte 130. Au voisinage de la barre porte-contacts 140, les contacts 120 logés dans les alvéoles définis par les cloisons 104 sur l'une des branches 101 ou 102 de la glissière viendront, en s'appliquant contre la broche 150 et en la contournant sensiblement sur un quart de sa périphérie, se loger dans les alvéoles définis par les mêmes cloisons sur l'autre branche 102 ou 101 de la glissière du côté de la rainure 110.During assembly of the slide 100 and the contact carrier bar 140 on which the contacts 120 are mounted, this pin 150 receives on its periphery, at the flats 154, the arcuate intermediate portions 125 of the contacts 120, which partially bypass, these intermediate portions 125 applying without pressure against the flats then parallel to the vertical legs of the two branches in L 101 and 102 of the slide. It will therefore be understood, with reference to FIG. 1 and to FIG. 3 in particular, that the spindle 150 can receive alternately on one side and the other of its median plane passing through the axis of the groove 110 the intermediate portions of the contacts mounted in the successive holes 141 of the two rows of holes of the contact carrier bar and that the terminal portions 124 in S of these same contacts will be arranged inversely with respect to this median plane and will define two rows of contacts with the card 130. In the vicinity of the contact carrier bar 140, the contacts 120 housed in the cells defined by the partitions 104 on one of the branches 101 or 102 of the slide will come, by pressing against the pin 150 and bypassing it substantially on a quarter of its periphery, be housed in the cells defined by the same partitions on the other branch 102 or 101 of the slide on the side of the groove 110.

En regard de l'organisation des contacts 120 d'un côté et de l'autre de la broche 150 et selon deux rangées d'un côté et de l'autre du plan médian de la rainure 110, on notera que ces contacts viendront coopérer avec des pistes conductrices, telles que 131, déposées ou imprimées sur l'une et l'autre des deux faces de la carte au voisinage de son bord inséré dans la rainure 110, ces pistes 131 étant décalées d'une face à l'autre et à des emplacements auxquels correspondent ceux des contacts 120 le long du connecteur. On notera également que, selon les connexions à assurer avec la carte 130, celle-ci ne sera équipée que du nombre de contacts 131 nécessaires et que le connecteur ne comportera alors que le même nombre de contacts 120 disposés le long du connecteur et selon l'une ou l'autre des deux rangées de contacts en correspondance avec la disposition des pistes 131 sur la carte 130.With regard to the organization of the contacts 120 on one side and the other of the pin 150 and in two rows on one side and the other of the median plane of the groove 110, it will be noted that these contacts will come to cooperate with conductive tracks, such as 131, deposited or printed on both of the two faces of the card in the vicinity of its edge inserted in the groove 110, these tracks 131 being offset from one face to the other and at locations to which correspond those of the contacts 120 along the connector. It will also be noted that, depending on the connections to be made with the card 130, it will only be equipped with the number of contacts 131 required and that the connector will then only have the same number of contacts 120 arranged along the connector and according to the one or the other of the two rows of contacts corresponding to the arrangement of the tracks 131 on the card 130.

Enfin, dans les figures 4A et 4B on a schématisé respectivement les commandes du connecteur, en position d'ouverture pour l'insertion de la carte 130 et en position de fermeture pour laquelle la carte est bloquée dans le connecteur, ces deux positions d'ouverture et de fermeture étant données respectivement dans les deux coupes des figures 5A et 5B.Finally, in FIGS. 4A and 4B, the connector commands have been shown diagrammatically, in the open position for inserting the card 130 and in the closed position for which the card is locked in the connector, these two positions of opening and closing being given respectively in the two sections of FIGS. 5A and 5B.

Dans les figures 4A et 5A par l'actionnement en rotation de la came 151 amenant la fente 152 dans le prolongement de la rainure 110, la carte 130 peut être introduite selon la flèche F depuis la fente 152 dans la rainure. Dans cette position, la fente 152 étant dans le prolongement de la rainure, la portion arquée des contacts s'appuie pratiquement sans pression contre les méplats 154 et relâche les portions terminales en S 124 qui s'écartent du plan médian de la rainure et du bord de la carte 130: les contacts sont alors en position ouverte.In FIGS. 4A and 5A by the rotary actuation of the cam 151 bringing the slot 152 in the extension of the groove 110, the card 130 can be inserted according to the arrow F from the slot 152 in the groove. In this position, the slot 152 being in the extension of the groove, the arcuate portion of the contacts bears practically without pressure against the flats 154 and releases the terminal portions in S 124 which deviate from the median plane of the groove and the edge of the card 130: the contacts are then in the open position.

Dans les figures 4B et 5B, par l'actionnement en rotation de la came 151, amenant la fente 152 perpendiculairement à la rainure 110, cet actionnement n'étant possible que lors de l'insertion totale de la carte 130 dans la rainure 110, la carte 130 est bloquée entre le tampon amortisseur schématisé en113 et la surépaisseur du profilé arrière 153 de la came. Les portions intermédiaires arquées des contacts 120 s'appliquent avec pression contre l'une ou l'autre des parties semi-cylindriques de la broche 150 qui les repoussant provoque le resserrement des portions terminales en S vers le plan médian de la rainure 110 donc contre la carte 130. Pour un meilleur actionnement de la came 151, lors du verrouillage de la carte 130 dans la rainure 110, l'extrémité avant du bord de la carte logé dans la rainure se terminera avantageusement en biseau et viendra alors coopérer avec le profilé arrière de la came, ce biseau non illustré étant formé sur l'extrémité 133 de la face avant de la carte, non recouverte d'une réglette de préhension 132 (figure 4A).In FIGS. 4B and 5B, by the rotary actuation of the cam 151, bringing the slot 152 perpendicular to the groove 110, this actuation being possible only when the card 130 is fully inserted in the groove 110, the card 130 is blocked between the damping buffer shown diagrammatically at 113 and the excess thickness of the rear section 153 of the cam. The arcuate intermediate portions of the contacts 120 are applied with pressure against one or the other of the semi-cylindrical parts of the spindle 150 which pushing them causes the terminal portions in S to tighten towards the median plane of the groove 110 therefore against the card 130. For better actuation of the cam 151, when the card 130 is locked in the groove 110, the front end of the edge of the card housed in the groove will advantageously end at a bevel and will then cooperate with the profile rear of the cam, this not illustrated bevel being formed on the end 133 of the front face of the card, not covered with a grip strip 132 (FIG. 4A).

Ainsi qu'il ressort de la figure 1 et qu'il apparaît dans les figures 3, 5A et 5B, les portions terminales 121 des contacts 120 qui forment des broches de contacts, traversent la barre porte-contacts 140 et débordent sur la face externe de la barre porte-contacts assemblée sur la glissière 100. Elles permettent le raccordement du circuit porté par la carte 130 à un ou plusieurs autres circuits portés par des cartes analogues par l'intermédiaires d'un circuit d'intercâblage imprimé sur une carte supplémentaire 170 dont les trous métallisés 171 permettent de la raccorder à force, sans soudure, sur les broches du connecteur en assurant, par les pistes 172 du circuit d'intercâblage les connexions convenables.As can be seen from FIG. 1 and as it appears in FIGS. 3, 5A and 5B, the end portions 121 of the contacts 120 which form contact pins, pass through the contact carrier bar 140 and overflow on the external face of the contact carrier bar assembled on the slide 100. They allow the connection of the circuit carried by the card 130 to one or more other circuits carried by similar cards through an interconnection circuit printed on an additional card. 170, the metallized holes 171 of which allow it to be force-fitted, without soldering, to the pins of the connector, ensuring, by the tracks 172 of the intercabling circuit, the appropriate connections.

En regard des figures 5A et 5B, on notera encore qu'outre le guidage longitudinal de la carte 130 lors de son insertion et son blocage ou verrouillage lors de son positionnement final, la disposition des contacts 120 dans la glissière 100 associée à leur commande ne permettent l'entrée de la carte 130 que lorsque le connecteur est ouvert c'est-à-dire lorsque les contacts 120 sont tous en retrait par rapport à la rainure 110 et donc bien protégés contre tout endommagement dans la glissière.With reference to FIGS. 5A and 5B, it will also be noted that, in addition to the longitudinal guide of the card 130 during its insertion and its blocking or locking during its final positioning, the arrangement of the contacts 120 in the slide 100 associated with their control does not allow the entry of the card 130 only when the connector is open, that is to say when the contacts 120 are all set back from the groove 110 and therefore well protected against any damage in the slide.

Bien que l'insertion de la carte 130 à travers la fente 152 de la came 151 soit avantageuse sur le plan des sécurités quant aux positions des contacts 120 dans la glissière, il est également possible de venir insérer la carte 130 transversalement à la rainure 110 en s'assurant de la position convenable de la broche 150, par la came 151 ou autre commande analogue. Egalement, alors que l'ouverture des contacts 120 s'opère lors du contact de leur parties intermédiaires arquées contre l'un des méplats de la broche et que leur fermeture a lieu alors que ces mêmes parties intermédiaires arquées s'appliquent contre l'une des portions se- mi-cylindriques de la broche, on peut prévoir que ces mêmes portions intermédiaires forment ressort travaillant inversement sans contourner la broche c'est-à-dire forment chacune un simple bossage qui en contact à pression sur l'une des portions semi-cylindriques de la broche viennent ouvrir les contacts alors qu'en contact contre l'un des méplats elles viennent fermer le connecteur, dans ce dernier cas les contacts de l'une des rangées n'étant pas nécessairement disposés entre ceux de l'autre rangée, mais pouvant être en vis-à- vis.Although the insertion of the card 130 through the slot 152 of the cam 151 is advantageous in terms of security as regards the positions of the contacts 120 in the slide, it is also possible to insert the card 130 transversely to the groove 110 ensuring the proper position of the spindle 150, by the cam 151 or other similar control. Also, while the opening of the contacts 120 takes place upon contact of their arcuate intermediate parts against one of the flats of the spindle and their closing takes place while these same arcuate intermediate parts apply against one semi-cylindrical portions of the spindle, it is possible to provide that these same intermediate portions form a spring working inversely without bypassing the spindle, that is to say each form a single boss which in pressure contact on one of the portions semi-cylindrical of the pin open the contacts while in contact against one of the flats they close the connector, in the latter case the contacts of one of the rows not necessarily being arranged between those of the other row, but may be opposite.

Claims (7)

1. A zero insertion force connector tor a printed circuit card (130), comprising a connector body constituted by an U-section slideway (100) closed by a base (140) and equipped with a longitudinal slot (110) for the insertion of the card a plurality of contacts (120) presenting first end portions (121 ) fixed, opposite to the slot, on said connector body base, called contact-bearing strip, and second end portions (124) destined to come into contact with the card and extending substantially over the length of the slot according to at least one rank, and comprising means for the simultaneous control either of opening or of closing of said contacts, these means being housed in the connector body and being constituted by a rotatably mounted shaft (150) of general cylindrical form and presenting essentially two opposite longitudinal flat surfaces (154) against which respective intermediate portions (125) of said contacts are applied for their opening or closing by simple rotation of the shaft, characterized in that the two branches of the slideway (100) are internally connected by a plurality of partitions (104) each presenting a first rectangular notch defining, over the length of the connector, the depth of said longitudinal slot (110).
2. A connector according to claim 1, characterized in that said partitions are mutually connected by small bridges (106) extending the bottom of each first notch defining the slot (110), these bridges enabling the bottom of this slot to become continuous.
3. A connector according to one of claims 1 and 2, characterized in that each of the partitions (104) presents a second notch with a rounded bottom (107) opposite to said slot (110), this second notch serving to house said shaft (150).
4. A connector according to one of claims 1, 2, and 3, characterized in that said contact-bearing strip (140) has a reversed T-shaped cross-section and is inserted into and fixed in the slideway, the vertical central portion of this section forming a longitudinal groove (143) for guiding said shaft (150) and defining with the second notch of each partition (104) the housing of said shaft (150).
5. A connector according to one of claims 1 to 4, comprising means for locking the card in the connector, characterized in that these means are constituted by an end knob (151) of the shaft presenting a back profile with a projection facilitating the blocking of the card (130) in said slot (110).
6. A connector according to claim 5, characterized in that said slot (110) is open on the front face of the connector body on the side of said knob (151) and terminates in the vicinity of the opposite front face in a transversal hole (112) in which a shock-absorbing cushion is housed (113).
7. A connector according to one of claims 1 to 6, characterized in that the first and the second end portions (121, 124) of each of said contacts (120) extend on either side of the longitudinal middle plane of the slot (110).
EP82105011A 1981-06-12 1982-06-08 Zero insertion force connector for a printed circuit board Expired EP0068196B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8111570A FR2507829A1 (en) 1981-06-12 1981-06-12 ZERO INSERTION FORCE CONNECTOR FOR PRINTED CIRCUIT BOARD
FR8111570 1981-06-12

Publications (2)

Publication Number Publication Date
EP0068196A1 EP0068196A1 (en) 1983-01-05
EP0068196B1 true EP0068196B1 (en) 1985-09-25

Family

ID=9259435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105011A Expired EP0068196B1 (en) 1981-06-12 1982-06-08 Zero insertion force connector for a printed circuit board

Country Status (3)

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EP (1) EP0068196B1 (en)
DE (1) DE3266512D1 (en)
FR (1) FR2507829A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE441406B (en) * 1983-11-16 1985-09-30 Ake Engstrom CARD CONTACT DEVICE
US4966556A (en) * 1989-06-13 1990-10-30 General Datacomm, Inc. Electrical connector for direct connection to plated through holes in circuit board
FR2748863B1 (en) * 1996-05-17 1998-07-24 Pillet Michel ELECTRICAL CLAMP CONNECTION FOR HIGH INTENSITY CIRCUIT

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1433439A (en) * 1965-02-15 1966-04-01 Csf Frictionless plug-in socket
US3555488A (en) * 1969-05-08 1971-01-12 Itt Printed circuit board connector
BE754252A (en) * 1969-07-31 1970-12-31 Bunker Ramo NULL INTRODUCTION FORCE RECEPTACLE FOR DECIRCUITED BEARING FLAT ELEMENTS
FR2185914B1 (en) * 1972-05-26 1979-02-09 Souriau & Cie
US4165909A (en) * 1978-02-09 1979-08-28 Amp Incorporated Rotary zif connector edge board lock

Also Published As

Publication number Publication date
DE3266512D1 (en) 1985-10-31
FR2507829B1 (en) 1984-09-28
FR2507829A1 (en) 1982-12-17
EP0068196A1 (en) 1983-01-05

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