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WO2009040613A1 - Raccord électrique et système de connexion - Google Patents

Raccord électrique et système de connexion Download PDF

Info

Publication number
WO2009040613A1
WO2009040613A1 PCT/IB2007/054342 IB2007054342W WO2009040613A1 WO 2009040613 A1 WO2009040613 A1 WO 2009040613A1 IB 2007054342 W IB2007054342 W IB 2007054342W WO 2009040613 A1 WO2009040613 A1 WO 2009040613A1
Authority
WO
WIPO (PCT)
Prior art keywords
receptacle
circuit board
connection
top wall
connector
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.)
Ceased
Application number
PCT/IB2007/054342
Other languages
English (en)
Inventor
Michel Fonteneau
Per Georg Gabrielsson
Bernardus Paagman
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.)
FCI SA
Original Assignee
FCI SA
Framatome Connectors International SAS
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 FCI SA, Framatome Connectors International SAS filed Critical FCI SA
Priority to PCT/IB2007/054342 priority Critical patent/WO2009040613A1/fr
Publication of WO2009040613A1 publication Critical patent/WO2009040613A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6594—Specific features or arrangements of connection of shield to conductive members the shield being mounted on a PCB and connected to conductive members
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H01R13/6582—Shield structure with resilient means for engaging mating connector
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit

Definitions

  • the present invention relates to electrical connectors and connection systems. BACKGROUND OF THE INVENTION
  • the instant invention is related to an electrical connector according to the preamble of claim 1.
  • US 6,443,768 already describes such a connector.
  • This connector can be used in a stacked assembly as shown in Fig. 3, wherein a first connector 100 is mounted on a first upper side of a circuit board and a second connector 200 is mounted on the opposite side (lower side) of said circuit board.
  • first 100 and the second connector 200 are in mirror-image relationship on respective opposite sides of the circuit board.
  • An aim of the invention is to provide a connector which is can be mounted on a lower side of a circuit board and adapted to accommodate a pluggable connector without requiring an up-side-down manipulation of the pluggable connector .
  • a second objective is to propose a connector meeting the above-mentioned aim and which requires very few modification in respect to an existing connector.
  • Fig. 1 is a perspective exploded view of an embodiment of a connector
  • - Fig. 2 is a sectional view along line II-II of
  • Fig. 3 is a perspective exploded view of a connector assembly according to prior art.
  • the same reference signs designate like or similar elements.
  • Fig. 1 shows an exploded view of a connector 1 according to one embodiment of the invention.
  • the connector 1 is mechanically and electrically attached to a circuit board (PCB) 2 only partially and schematically shown on Fig. 1, and for example to the bottom face of the PCB.
  • the connector 1 is of the small form-factor pluggable (SFP) format for use for opto- electric conversion, for example in servers, routers, storage devices, switches, optical or networking devices.
  • SFP small form-factor pluggable
  • the connector 1 comprises an external cage 3 which is made from an electrically conductive material such as for example, a metallic sheet.
  • the cage 3 is provided in two parts, a lower part 3a and an upper part 3b defining therebetween a cavity.
  • the upper part 3b comprises a top wall 4 extending longitudinally along a longitudinal axis X and from which extend two top side walls 5b and a back wall 6. Along direction X, the upper part 3b comprises a front portion 7b, an intermediate portion 8b and a rear portion 9b.
  • the top wall 4 comprises a latch device 10 for example formed as an elastic tongue biased so as to protrude downwardly from the top wall, and provided with a locking opening 11 for example of triangular shape.
  • the top wall 4 and the top side walls 5b can further include openings 12, provided with spring tabs, for example obtained by partial cut-outs in the metallic sheet. These openings 12 will provide air cooling of the connector, while the spring tabs ensure shielding against electro-magnetic interferences.
  • the top side walls 5b extend downward to the circuit board.
  • the top wall is provided with through openings 12 which are for example provided in three different rows and will also provide air cooling. Further, the top side walls 5b will be provided with other openings 12, as well as locking openings 13 for locking the upper part 3b of the cage to the lower part 3a.
  • the top wall 4 is stepped with respect to the top wall of the intermediate portion
  • the top wall is provided with two mechanical retention through-holes 14 for mechanical retention of a receptacle 15.
  • the top side walls 5b of the rear portion 9b comprise locking openings 13.
  • the back wall 6 extends to the circuit board and is provided with mechanical retention posts 18 to be mechanically fixed, for example soldered, on or into the PCB 2 for connection to a grounding circuit of the circuit board.
  • the lower part 3a of the cage is of similar construction to the upper part 3b, and comprises a bottom wall 16 extending parallel to the top wall 4 along the longitudinal direction X, and from which extend bottom side walls 5a.
  • the lower part 3a comprises a front portion 7a, an intermediate portion 8a and a rear portion 9a along the longitudinal direction X.
  • the front portion 7a there are no lateral bottom walls 5a, but only the bottom wall 16 which is also provided with openings 12 and spring tabs such as previously described. There is no front wall, so as to define a module opening 38 in the front of the cage 3.
  • the external face of the lateral bottom wall 5a is provided with locking lances 17, which mechanically cooperate with the locking openings 13 of the upper part 3b of the cage for mechanically locking together the lower and the upper part of the cage.
  • the upper part 3b upon manufacturing, the upper part 3b will be moved downward toward the lower part 3a upon which the lateral top walls 5b will deflect the locking lances 17 out of the rest position until these are inserted into the locking openings 13 in which they can resiliently deform back to their original position in which they prevent an upward movement of the upper part 3b of the cage with respect to the lower part.
  • the herein described mechanical connection of the upper and lower cages is by way of example only.
  • the bottom wall 16 at the rear portion 9a does not extend up to the back wall 6, defining therebetween a PCB connection opening 37 ( Figure 2). Further, an accommodating space is defined between the walls of the rear portions 9a, 9b.
  • cooling apertures 12 are also provided in the intermediate portion 8a.
  • Other cooling apertures 12 can be provided in the bottom wall 16.
  • a plurality of mounting posts 18 extends downwardly from the bottom edges of the side walls 5a, to be mechanically fixed, for example soldered, to the printed circuit board. These posts 18 are for example cut out and bent from the metal sheet, which enables to simultaneously define a cooling aperture 12 in the bottom wall 16.
  • a support portion 19 is provided at said rear portions 9a, 9b. It comprises a support wall 20 which extends parallel to the top wall 4 and the bottom wall 16, and in between these walls, but does not extend up to the back wall 6 along the longitudinal direction.
  • the support wall 20 is retained onto the cage 3 by any suitable means, such as by two lateral wings 21 which extend respectively along side each of the internal faces of the lateral bottom walls 5a.
  • the support portion 19 is for example made in an electrically conductive material providing electromagnetic interferences shielding, and/or is a resilient material so as to permanently exert an upward force.
  • Two resilient members (in dotted lines) 22 are provided between the support wall 20 and the bottom wall 16, for example in the form of flexible metallic tongues which would bias the inserted electro-optical module in the longitudinal direction X opposite to the transceiver module insertion direction.
  • each electrical terminal member 25 comprises a first portion 27 for electrical connection to the module 26, and a second portion 28 which extends in the vicinity of the top wall 4.
  • the second portions 28 are each electrically connected to a flexible printed circuit (FPC) 29 which extends from a first connection portion 29a which extends parallel and in close proximity to the top face 4, to a second connection portion 29b which extends parallel to the back wall 6 of the cage, behind the support wall 20.
  • FPC flexible printed circuit
  • the electrical connection between the flexible printed circuit 29 and the printed circuit board 2 could be performed through a specific connector 30, so called FPC connector, in which the tracks on the second connection portion 29b of the flexible printed circuit 29 are electrically connected to electrical terminal members 31 which are themselves electrically connected, for example soldered, to the printed circuit board 2.
  • the tracks of the printed circuit board 2 are adapted to mimic the connection pattern of the FPC connector.
  • the FPC connector 30 could be mounted so as to have its connection portion floating inside an outer housing so as to allow good coplanarity with the printed circuit board 2. Upon assembly, the FPC connector 30 will first contact the circuit board 2, and then other parts of the connector such as the cage.
  • the FPC could be bent by an additional 90° so that the tracks of its second portion 29b could be directly electrically connected to the corresponding tracks of the circuit board, through the PCB- opening of the cage.
  • the receptacle 15 is fixed to the cage 3, for example by two pins 35 which extend upward from said body, through suitable openings in the flexible printed circuit 39 and are fixed, for example soldered, to the complementary retention through holes 14 of the top wall 4.
  • the two pins 35 have different geometries.
  • Fig. 2 which is upside-down with respect to Fig. 1 so as to show the connector as it is installed on the bottom face of the PCB in the electrical device, the opto-electrical transceiver module 26 extends into the cavity inside the cage 3, after having been inserted there through the module opening.
  • the module Upon insertion, the module is introduced along longitudinal direction X, against the bias of the resilient member 22 onto its end 26a, until its latching part 32 will be introduced into the locking opening 11 of the top wall 4 of the upper part 3b of the cage.
  • an electrical connection part 33 of the module 26 is inserted into the slot 24 of the receptacle 15.
  • the electrical connection part 33 is for example a part of a printed circuit board comprising tracks which are electrically connected to the electrical terminal members 25. Due to the position of the receptacle 15 inside the cavity and the shape of the module 26, insertion of the module 26, without calling for reverse manipulation of it, in the connector 1 is only possible with the correct orientation but.
  • the module 26 further comprises a connection portion schematically shown as 34 for connection to a suitable complementary mating connector schematically shown as 36, for example such as a RJ 45 plug.
  • the embodiment which has just been described enables to use pre-existing elements, such as the cage, the card receiving portion of the receptacle, with very few modifications, to provide with a reverse-mated SFP connector.
  • pre-existing elements such as the cage, the card receiving portion of the receptacle, with very few modifications, to provide with a reverse-mated SFP connector.
  • pre-existing compounds allows not to define an entirely new connector, which would require extensive development and validation work but to use preexisting components for providing the function of a reverse-mated SFP connector.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

La présente invention concerne un raccord électrique comprenant un boîtier définissant une cavité interne comportant une paroi supérieure, une paroi inférieure opposée à la paroi supérieure et une ouverture de connexion de carte de circuit imprimé, un réceptacle (15) situé à l'intérieur de la cavité, le réceptacle comprenant : un corps électriquement isolant (23), des éléments de bornes électriques (25) situés dans ladite région de connexion, chaque élément de borne comprenant une première partie et une seconde partie, les secondes parties faisant saillie à partir du corps isolant, un circuit imprimé souple (29) étant connecté auxdites secondes parties et conçu pour connecter électriquement le réceptacle à une carte de circuit imprimé (2) par l'intermédiaire de ladite ouverture de connexion de carte de circuit imprimé.
PCT/IB2007/054342 2007-09-28 2007-09-28 Raccord électrique et système de connexion Ceased WO2009040613A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2007/054342 WO2009040613A1 (fr) 2007-09-28 2007-09-28 Raccord électrique et système de connexion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2007/054342 WO2009040613A1 (fr) 2007-09-28 2007-09-28 Raccord électrique et système de connexion

Publications (1)

Publication Number Publication Date
WO2009040613A1 true WO2009040613A1 (fr) 2009-04-02

Family

ID=39563491

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/054342 Ceased WO2009040613A1 (fr) 2007-09-28 2007-09-28 Raccord électrique et système de connexion

Country Status (1)

Country Link
WO (1) WO2009040613A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013012658A3 (fr) * 2011-07-15 2013-04-04 Fci Connecteur électrique à ensemble de positionnement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5364275A (en) * 1992-07-20 1994-11-15 Kyocera Elco Corporation Memory card connector
US5947764A (en) * 1996-03-21 1999-09-07 Hon Hai Precision Ind. Co., Ltd. Connector assembly with a connecting means to board and arranging method for the same
US20020068481A1 (en) * 1999-12-01 2002-06-06 Flickinger Steven L. Pluggable module and receptacle
US6443768B1 (en) * 2001-09-14 2002-09-03 Molex Incorporated Small form factor connector cage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5364275A (en) * 1992-07-20 1994-11-15 Kyocera Elco Corporation Memory card connector
US5947764A (en) * 1996-03-21 1999-09-07 Hon Hai Precision Ind. Co., Ltd. Connector assembly with a connecting means to board and arranging method for the same
US20020068481A1 (en) * 1999-12-01 2002-06-06 Flickinger Steven L. Pluggable module and receptacle
US6443768B1 (en) * 2001-09-14 2002-09-03 Molex Incorporated Small form factor connector cage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013012658A3 (fr) * 2011-07-15 2013-04-04 Fci Connecteur électrique à ensemble de positionnement
US8926339B2 (en) 2011-07-15 2015-01-06 Fci Americas Technology Llc Electrical connector having positioning assembly

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