EP0549460A1 - Modularer elektrischer Steckverbinder - Google Patents

Modularer elektrischer Steckverbinder Download PDF

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Publication number
EP0549460A1
EP0549460A1 EP92403517A EP92403517A EP0549460A1 EP 0549460 A1 EP0549460 A1 EP 0549460A1 EP 92403517 A EP92403517 A EP 92403517A EP 92403517 A EP92403517 A EP 92403517A EP 0549460 A1 EP0549460 A1 EP 0549460A1
Authority
EP
European Patent Office
Prior art keywords
modular
insulating body
shielding
element according
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.)
Granted
Application number
EP92403517A
Other languages
English (en)
French (fr)
Other versions
EP0549460B1 (de
Inventor
Patrick Champion
Jacky Thenaisie
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 France SA
Original Assignee
Souriau et Cie
Framatome Connectors France 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 Souriau et Cie, Framatome Connectors France SA filed Critical Souriau et Cie
Publication of EP0549460A1 publication Critical patent/EP0549460A1/de
Application granted granted Critical
Publication of EP0549460B1 publication Critical patent/EP0549460B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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

Definitions

  • the present invention relates to a modular electrical connection device which can be used in particular for making electrical contacts from a motherboard and / or a daughterboard.
  • ERTI US Pat. No. 4,959,024
  • US Pat. No. 4,959,024 is a shielded connector intended to interconnect two printed circuit boards. It has a first female connector intended to be mounted on a motherboard, and comprising an external shielding constituted by a U-shaped profile extending over the entire length of the connector and fixed to the motherboard by ends of ground contacts. .
  • An insulating central body has female connectors with elastic connection, one point-shaped end of which is secured to the motherboard.
  • a male connector carrying a daughter card and two external shielding portions secured to the daughter card is plugged into the first connector to interconnect both the contacts of the male and female connectors and their shielding elements.
  • the present invention relates to a connection device which can be used in particular for making connections with cards such as motherboards and / or daughter cards, in which one or more of the aforementioned drawbacks are avoided.
  • a modular electrical connection element in particular for being connected to a motherboard, can be mounted by a simple plug-in operation while having all the desired functions of connection and shielding.
  • the modular electrical connection element is for this purpose characterized in that it comprises an insulating body comprising a central region for receiving electrical contact elements and two lateral branches substantially perpendicular to an axis of the central region and having a width equal to that of said module, in that each lateral branch comprises, on an external face, a shielding element extending over a major part of its surface, a said shielding element comprising at least one means for holding in position in said insulating body, at least one electrical connection means projecting from said insulating body, and at least one elastic electrical contact means through at least one corresponding opening of said lateral branch opening onto an internal face of said lateral branch.
  • the shielding element is arranged outside the insulating body and since contact is made from the inside, the internal faces of the lateral branches are free and can be used to implement polarization means known per se, for example from European patent application EP-A-392,629 (DU PONT DE NEMOURS BV).
  • the shielding element can extend over practically the entire width of the corresponding external face.
  • the shielding elements When the modular elements are aligned by juxtaposition, it is not necessary for the shielding elements to touch. It suffices that they are adjacent to the rows of contacts preferably over the entire length thereof.
  • the shielding elements can be placed in recesses on the corresponding external faces.
  • the elastic electrical contact means advantageously comprises at least one lever located in a region distal from the corresponding lateral branch.
  • the shielding element can then comprise a stiffening element located in the extension of said lever, in a region proximal to the lateral branch.
  • the distal end of said lever has a stock directed towards the inside of the insulating body.
  • the elastic electrical contact means may be such that in the rest position, it extends through the opening, projecting from the internal face towards the inside of the insulating body.
  • the means for holding the shielding element in position in the insulating body may consist of at least one tongue of the shielding element cooperating with at least one groove in the insulating body, in particular by forcing the tongue in the groove, and / or a hot deformable pin.
  • the contact elements are male contacts and the central region and the lateral branches form a flat U-shaped profile.
  • a modular connection element can be used both as a male connector by mounting male contacts thereon by force fitting, or as a bridge fixed on an opposite end of the motherboard and crossed by the ends of the male contacts of a male connector sliding in the openings of the trigger guard.
  • Such a trigger guard is adapted to receive a female cable connector.
  • a plurality of modular elements as defined above can be mounted side by side, integral with a printed circuit mother board, at least one connector having contacts cooperating electrically with the contact elements of a modular element as well as 'an external shielding element arranged so as to cooperate electrically with said electrical contact means of said shielding element.
  • the external shielding element may comprise at least one extension extending in the direction of the central branch of the insulating body of the modular element and along the internal face of a lateral branch so as to allow continuity of ground contact both that the contact elements of the connectors and of the modular element are in electrical contact.
  • the invention relates to a modular electrical connection element which can be used both as a male connector when it is equipped with male contact elements or as a jumper for connection between a motherboard and for example a connector cable, which can be easily attached to the motherboard.
  • a modular element according to the second aspect of the invention is of the type comprising, as is known from US Pat. No. 4,655,518 (TERADYNE INC), a body insulation having a flattened U-shaped profile having a central branch for receiving electrical contact elements and two lateral branches which have, in a direction perpendicular to the plane of the U-shaped profile, a width equal to that of said module.
  • each lateral branch comprises a shielding element extending over a major part of its surface, a said shielding element comprising at least one means of elastic electrical contact on an internal face of said lateral branch and at least one means of electrical connection through said insulating body, said shielding element having means for holding it in position in the insulating body at least in the direction of a tearing off substantially parallel to an axis of the U-shaped profile .
  • Said means for holding in position may include at least one tongue folded back substantially 90 ° relative to the plane of the shielding element and cooperating with at least one groove in the insulating body.
  • This tongue-groove cooperation allows excellent transmission of forces when the modular element is subjected to tearing forces. Said cooperation can in particular be obtained by forcing the tongue in the corresponding groove.
  • Said groove can be disposed substantially at the joint between the central branch and the corresponding lateral branch, that is to say in a region close to the electrical connection means of the shielding element and which locally have good rigidity.
  • a particularly easy mounting of said modular element is obtained when the electrical connection means of the shielding element comprises at least one connection tab of the force-insertion type ("press-fit").
  • the shielding elements may have an edge adjoining the central branch of the central body, and comprising a plurality of said connection means alternating with a plurality of said tabs.
  • the electrical connection device may comprise a first set of modular elements as defined above, the first set being for example constituted by bridges for cable connector secured to the motherboard only by said connection means electrical, the modular elements being mounted side by side secured to a motherboard at least by said electrical connection means.
  • a second set may be constituted by male connectors mounted head to tail with the bridges of the first set, the electrical connection means of the first and of the second set being nested.
  • the invention relates to a connector having a central insulating element comprising rows of connection elements having a first male terminal intended to be secured to a flat support, such as a daughter card, and a second terminal in particular female, as well as a shielding device arranged on either side of the rows of connection elements.
  • a connector having a central insulating element comprising rows of connection elements having a first male terminal intended to be secured to a flat support, such as a daughter card, and a second terminal in particular female, as well as a shielding device arranged on either side of the rows of connection elements.
  • the shielding element of such a connector is in two parts, which are fixed only to the daughter card, the opposite end being held in position only when the connector has climbed.
  • the connector is characterized in that it comprises at least one hot deformable pin secured to the central element, in that the shielding device has a portion provided with at least one opening, the shape of the shielding device being such that, when it is mounted on the connector, said opening engages in said pin and there remains between said portion and the central element a space intended to receive one end of the support. Therefore, the shielding element is secured both to the daughter board and to the central element of the connector.
  • the central element may comprise at least one centering element disposed in the vicinity of said pin and intended to position the flat support, in particular during the hot deformation of the pin.
  • the connector according to the invention is for example of the type in which the connection elements comprise a 90 ° angle gear.
  • said portion is advantageously disposed at one end of the shielding device adjacent to the second terminals of a row of the connection elements.
  • the shielding device may comprise, on one face of the central insulating element opposite to said portion, at least one extension extending substantially as far as a distal end of the female terminals.
  • the shielding device can be in two parts intended to be connected to the support by nested contacts.
  • connection device comprising a connector as defined above mounted on a said flat support such as a daughter board with a printed circuit characterized in that the male terminals of the connection elements are integral with the support and in that said end of the support has at least one opening traversed by said pin and is sandwiched between said portion of the shielding device and the central insulating element, by at least one said pawn forming a rivet in its state after deformation.
  • At least one centering element can be carried by the central element and be mounted with clamping in the flat support. In this way, the flat support is held in position, said position being retained even during the hot deformation of the pin.
  • the shielding device can then comprise first and second parts located on two opposite sides of the flat support.
  • the first part of the shielding device can then comprise a cover disposed around the male terminals and having a first end comprising contacts by which it is fixed to the flat support and a second end constituted by said portion.
  • the second part of the shielding device may have a first end comprising contacts by which it is fixed to the flat support so as to be nested with the contacts of the first end of the first part and a second end forming at least one extension extending substantially to a distal end of the second terminals.
  • an insulating body designated by the general reference 5 has a flattened U-shaped profile comprising a central branch 11 provided with openings 14 intended to receive electrical contacts and two lateral branches 12 and 13.
  • a such an arrangement is known per se from US Pat. No. 4,655,518 for receiving male contacts.
  • the branch 13 has keying and / or latching grooves 30 opening onto its internal face 31.
  • the external faces 32 of the branches 12 and 13 each have a recess 15 of generally rectangular shape whose width is practically equal to the width l of the corresponding branch with the exception of two marginal strips 33.
  • the recesses 15 extend in the height of the branch to beyond the opening 17 of the contact passage located at the distal end of the branches 12 and 13.
  • the bottom 26 of the recesses 15 has a flat lower part 16, an upper middle part forming an inclined plane 19 of connection with the opening 17 and, beyond the opening 17, a stop 25.
  • the bottom 16 of the recesses 15 is connected with grooves 20 arranged across the width of the branch, by means of chamfers 21.
  • FIG. 2c shows housings 54 for hot-deformable pins. Each housing 54 is located between the openings 17 at the distal end of the branches 12 and 13.
  • the lower part 16 of the bottom 26 of the recess 15 also extends via chamfers 22 ′ by two narrow profiles, one horizontal 22 and the other vertical 24 located lower than and alternating with the grooves 20.
  • the lateral edges 27 of the lateral branches 12 and 13 are extended by spacers 52, the lower part of which lies in the same plane as the lower part of the profiles 24. Finally, the distal ends of the branches 12 and 13 have entry chamfers 53.
  • FIGS. 2a to 2d four rows of holes 14 have been shown corresponding to a connection of type 4 + 2 (4 connection elements + 2 rows of shielding) with a central branch of width L1 whereas FIGS. 3a to 3d, by elsewhere identical, have a wider central branch 11 (width L2) and having five rows of opening 14 corresponding to a connection of the 5 + 2 type.
  • a shield plate 40 comprises a base plate 37 extending by a narrower upper plate 41 and having on both sides of the contact arms 46 connecting to the base plate 37.
  • Each of the contact arms 46 has an inclined part at an angle corresponding to the rest at that of the inclined part 19 and extending by a butt 48 whose dimensions correspond to those of the opening 17.
  • the butt 48 itself extends by an end 49 intended to cooperate with the stop 25.
  • the base plate 37 comprises in the extension of the contact arms 46 two curved mechanical reinforcements 47.
  • the upper part 41 of the base plate 37 has on the one hand three tongues 45 folded at 90 ° at 45 ′ in the direction of the stock 48 so as to cooperate with the corresponding grooves 20, the tongues 45 alternating with two male contact elements 42 having ends 43 which can be force-fitted ("press-fit") into a card.
  • the two male contacts 42 have two alternating folds at 90 ° at 44 'and 44''defining a recessed horizontal portion 44 intended to be housed in the horizontal face 22, the corresponding end 43 coming in the extension of the vertical face 24.
  • the male connector 3 receives two identical shielding plates 40. They are fixed in the direction of the arrows in FIG. 4c on its lateral branches 12 and 13 in the manner shown in FIGS.
  • FIG. 5b shows the positioning of the male contacts 43 which is offset laterally which produces in side view alternating contacts, and which will result, as will be seen hereinafter, by an assembly nested in the same plane for an assembly head to tail of a male connector and a trigger guard on a motherboard.
  • the male contacts 43 of the male connector and the jumper are interconnected.
  • the tabs 45 are forced into the grooves 20, which allows to hold the shielding elements in place in the male connector, and therefore to produce a modular element which can be mounted on a card in a single insertion operation.
  • the housing 54 makes it possible, thanks to its deformable pin, to keep the plate 41 in place when the arms 46 are bent.
  • the electrical contacts 60 have an active part 62 located inside the U-shaped profile of the male connector 3, and, as they are secured at 61 with the central branch 11, they can be inserted into a motherboard 1 at the same time as the contacts 43 according to the so-called "press-fit" force insertion technique (FIGS. 6a and 6b).
  • the male connectors also have ends 64 and 65 which protrude from the underside 6 of the motherboard 1 in order to cooperate with a bridge 4 capable of receiving a cable connector.
  • the trigger guard designated by the general reference 4, is constituted by an insulating body 5, as represented in FIGS. 2a to 2d or 3a to 3d, in which two shielding and connection plates 40 have been attached as shown in FIGS.
  • FIG. 4a , 4b, 4d and 4th show the openings 14 of the trigger guard 4 slide freely along the end 65 of the male contacts 60 until they come into abutment on the lower face 6 of the motherboard 1, the trigger guard 4 being secured to the motherboard only by male contacts 43 press-fit into the corresponding openings on the motherboard 1.
  • Figure 6b shows the nested position in the same plane of the contacts 43 of the trigger guard 4 and of the male connector 3 mounted head to tail. This nested mounting is favorable for good shielding.
  • Figure 7 shows in section an assembly comprising a male connector, a motherboard and a trigger guard after head-to-tail assembly.
  • the active ends 65 of the contacts 60 project towards the inside of the U-shaped insulating body of the bridge 4 to cooperate with a cable connector.
  • the forced insertion of the contacts 43 is carried out by supporting the horizontal recessed portion 44 on the horizontal face 22. This makes it possible, by the abutment effect provided by the faces 22, to prevent the forces of inserting the contacts 43 are retransmitted to the base plate 37 and therefore to avoid deforming it.
  • the continuation of the operations therefore comprises a positioning of the trigger guard (FIG. 8a), the introduction of a cable connector designated by the general reference 70 which has at its front part a lock 78 carried by a lock lever which comes to cooperate with the opening 30 carried by the branch 13 of the trigger guard.
  • the cable connector 70 has openings 72 for the male conductors 60, female contacts 73 and cable mounting lugs 74, 75.
  • the trigger guard is surrounded by an insulating sheath 71.
  • the cable connector 70 is surrounded by a metallized plastic sheath 76 which provides its shielding and which comes into contact with the brackets 48 (see FIG. 1).
  • FIG. 8c more particularly shows the distribution of the mechanical functions during a tensile force exerted on the cable connector.
  • the action forces F and reaction R generated at the latch 78 are transmitted to the shielding plates 40 via the tabs 45 disposed in the grooves 20, then to the male contacts 43 which maintain the trigger guard on the motherboard 1.
  • the folds 44 at 90 ° of the contact tabs 42 ensures that the trigger guard is held in place with a certain elasticity.
  • the fixing action retransmitted by the shielding plates 40 is added to the holding forces produced by the male contacts 60 inserted at 61 in the central branch 11 .
  • FIGS. 9a to 9c represent a connector for connection between a male connector and a daughter card 2. It comprises a front insulating body 81 having openings in which are arranged female contacts 83 extending by the cylindrical conductors 85 forming a 90 ° bend ° at 86 and having a rear part 8th extended by the male contacts with forced insertion 88.
  • the cylindrical contacts 85, 86, 87 are embedded in a rear insulating block designated by the general reference 89.
  • the insulating body 81 has, in the vicinity of the male contacts 88, a hot deformable pin 110 having one end 115. Two centering pins 114 surround the deformable pin 110.
  • the first shielding element designated by the general reference 91 has a flat face 92 forming a cover for the protruding ends of the contacts 88.
  • This cover 92 is extended at one end by forced insertion contacts 94 which form with it a ngle of 90 ° (fold 93) and its second end by a profile inclined at 45 ° 95, which is extended by a flat face 96 having an opening 100 of diameter corresponding to that of the pin 110 to let its ends pass 115.
  • the opening 100 is framed by two contact projections 97 intended to cooperate with the sticks 48.
  • the projections 97 receive the ends of the centering pins 114.
  • the flat surface 96 is extended by a spacer 99 forming with it an angle of 90 °, this who thus defines a space 120 suitable for receiving and sandwiching a 2 ′ end of the daughter card 2.
  • the spacer 99 defines a space for surrounding and receiving the end of a daughter card 2.
  • a second cover, designated by the general reference 101, has two flat parts 102 and 106 connected by a 90 ° bend 105 so as to follow and surround the path of the conductive elements of the connector.
  • the flat part 106 is extended by forced insertion contacts 107 which overlap with the contacts 94 for good shielding continuity.
  • the contacts 94 and 107 are interconnected by conductors of the daughter card 2.
  • the distal end of the flat part 102 is extended by two lateral arms 104 whose function is to allow and maintain continuity of the ground contact up to the main conductors have been disconnected.
  • an L-profile tool designated by the reference 112 follows the contour of the shield 100 and allows the insertion of its contacts 107 in the card daughter 2 at the same time as the contacts 88 without deforming the shielding plate 101.
  • the centering pins 114 which surround the hot deformable pin 110 are forcefully introduced into the daughter card 2 so as to maintain this provisionally in place.
  • the shield 91 is put in place by force introduction into the corresponding openings of the daughter board of its contacts 94.
  • the opening 100 is crossed by the end 115 of the pin 110.
  • the shielding plate 91 is also held by a correspondingly shaped tool which surrounds it and prevents its deformation.
  • the hot deformation of the pin 110 is carried out, the assembly being temporarily held in place on the one hand by the centering pins 114 and by fixing the plate 91 through its contacts 94.
  • the end 115 of the pin 110 takes the form of a flattened head 111 (FIGS. 10b and 10e).
  • the centering pins 114 thus have a double function, namely on the one hand producing a good centering of the daughter card independently of the deformations of the pin 110 and on the other hand, temporarily holding it in place during the operation of hot deformation of the pin 110.
  • FIGS. 11a to 11c show the advantage of the modular connector according to the invention which can be used either individually (FIG. 11a) or joined in pairs (FIG. 11b) or in greater number, for example four (FIG. 11c).

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
EP92403517A 1991-12-23 1992-12-22 Modularer elektrischer Steckverbinder Expired - Lifetime EP0549460B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9116012A FR2685554B1 (fr) 1991-12-23 1991-12-23 Element modulaire de connexion electrique.
FR9116012 1991-12-23

Publications (2)

Publication Number Publication Date
EP0549460A1 true EP0549460A1 (de) 1993-06-30
EP0549460B1 EP0549460B1 (de) 1996-07-24

Family

ID=9420389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92403517A Expired - Lifetime EP0549460B1 (de) 1991-12-23 1992-12-22 Modularer elektrischer Steckverbinder

Country Status (5)

Country Link
US (1) US5356301A (de)
EP (1) EP0549460B1 (de)
DE (1) DE69212451T2 (de)
ES (1) ES2090557T3 (de)
FR (1) FR2685554B1 (de)

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JP6634420B2 (ja) * 2017-08-28 2020-01-22 矢崎総業株式会社 機器直付用シールドコネクタ
JP6966271B2 (ja) * 2017-09-15 2021-11-10 タイコエレクトロニクスジャパン合同会社 基板実装型シールドコネクタ

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US4655518A (en) * 1984-08-17 1987-04-07 Teradyne, Inc. Backplane connector
US4959024A (en) * 1988-10-07 1990-09-25 Erni Elektroapparate Gmbh Shielding device for electric plug connectors
EP0392629A1 (de) * 1989-04-14 1990-10-17 Connector Systems Technology N.V. Verbindersatz mit Mitteln zur Codierung

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US5035631A (en) * 1990-06-01 1991-07-30 Burndy Corporation Ground shielded bi-level card edge connector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655518A (en) * 1984-08-17 1987-04-07 Teradyne, Inc. Backplane connector
US4959024A (en) * 1988-10-07 1990-09-25 Erni Elektroapparate Gmbh Shielding device for electric plug connectors
EP0392629A1 (de) * 1989-04-14 1990-10-17 Connector Systems Technology N.V. Verbindersatz mit Mitteln zur Codierung

Also Published As

Publication number Publication date
EP0549460B1 (de) 1996-07-24
US5356301A (en) 1994-10-18
DE69212451D1 (de) 1996-08-29
ES2090557T3 (es) 1996-10-16
FR2685554B1 (fr) 1994-03-25
FR2685554A1 (fr) 1993-06-25
DE69212451T2 (de) 1996-12-12

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