EP0068196B1 - Connecteur à force d'insertion nulle pour carte de circuit imprimé - Google Patents

Connecteur à force d'insertion nulle pour carte de circuit imprimé 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
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0068196A1 (fr
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/fr
Application granted granted Critical
Publication of EP0068196B1 publication Critical patent/EP0068196B1/fr
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.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
EP82105011A 1981-06-12 1982-06-08 Connecteur à force d'insertion nulle pour carte de circuit imprimé Expired EP0068196B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8111570A FR2507829A1 (fr) 1981-06-12 1981-06-12 Connecteur a force d'insertion nulle pour carte de circuit imprime
FR8111570 1981-06-12

Publications (2)

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

Family

ID=9259435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105011A Expired EP0068196B1 (fr) 1981-06-12 1982-06-08 Connecteur à force d'insertion nulle pour carte de circuit imprimé

Country Status (3)

Country Link
EP (1) EP0068196B1 (enExample)
DE (1) DE3266512D1 (enExample)
FR (1) FR2507829A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE441406B (sv) * 1983-11-16 1985-09-30 Ake Engstrom Kontaktanordning vid kort
US4966556A (en) * 1989-06-13 1990-10-30 General Datacomm, Inc. Electrical connector for direct connection to plated through holes in circuit board
FR2748863B1 (fr) * 1996-05-17 1998-07-24 Pillet Michel Connexion electrique a pince pour circuit haute intensite

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1433439A (fr) * 1965-02-15 1966-04-01 Csf Connecteur femelle à enfichage sans frottement
US3555488A (en) * 1969-05-08 1971-01-12 Itt Printed circuit board connector
BE754252A (fr) * 1969-07-31 1970-12-31 Bunker Ramo Receptacle a force d'introduction nulle pour elements plats porteurs decircuits
FR2185914B1 (enExample) * 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
FR2507829A1 (fr) 1982-12-17
FR2507829B1 (enExample) 1984-09-28
DE3266512D1 (en) 1985-10-31
EP0068196A1 (fr) 1983-01-05

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