EP0181362B1 - Elektrische steckdosenverbindungselemente und deren herstellungsverfahren - Google Patents

Elektrische steckdosenverbindungselemente und deren herstellungsverfahren Download PDF

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Publication number
EP0181362B1
EP0181362B1 EP85902066A EP85902066A EP0181362B1 EP 0181362 B1 EP0181362 B1 EP 0181362B1 EP 85902066 A EP85902066 A EP 85902066A EP 85902066 A EP85902066 A EP 85902066A EP 0181362 B1 EP0181362 B1 EP 0181362B1
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EP
European Patent Office
Prior art keywords
supports
transverse
connector element
element according
metallized
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
EP85902066A
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English (en)
French (fr)
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EP0181362A1 (de
Inventor
François Robert Bonhomme
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Individual
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Individual
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Publication of EP0181362A1 publication Critical patent/EP0181362A1/de
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • H01R13/035—Plated dielectric material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/504—Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together

Definitions

  • an electrical connection generally uses a metal plug and socket. It is clear that, in order to reduce the overall dimensions as much as possible, it is necessary to place on the sleeve, and not on the plug, the elastically deformable device which provides the necessary contact pressure, in order to allow the use of plugs, the diameter is less than 0.3 mm. If the socket is cylindrical, it is impossible to correctly carry out an electrolytic protective deposit inside this socket since the inside diameter of the latter is substantially equal to the diameter of the plug.
  • electrical contact devices are normally used using elastic metallic materials which provide the necessary contact pressure but which are generally not suitable in the case of the small dimensions envisaged in this type of connector, in particular for reasons of manufacturing the components. as well as assembly using automatic machines.
  • elastic metallic materials which provide the necessary contact pressure but which are generally not suitable in the case of the small dimensions envisaged in this type of connector, in particular for reasons of manufacturing the components. as well as assembly using automatic machines.
  • the applicant has already proposed, in FR-A-1 174 063, to use a flat plastic mattress, for example made of synthetic rubber, on one of its flat faces of the copper deposits which are just applied, by a relative transverse displacement caused by external mechanical means, on the flat face of a printed circuit board, in order to ensure contact between the conductive tracks usual of this card and the copper deposits of the elastic mattress.
  • the object of the invention is to develop a method of manufacturing female electrical connector elements which is suitable for plug diameters preferably at most equal to 0.3 mm and which is safe and relatively inexpensive.
  • the invention also aims to provide relatively inexpensive electrical connector female elements which can receive plugs of such a diameter and which provide a satisfactory contact pressure with good reliability.
  • the invention relates to a method of manufacturing a female electrical connector element, intended to cooperate with plugs of diameter preferably at most equal to 0.3 mm, in which two supports are established separately. in insulating material, at least one of which is in elastic plastic material, by giving these supports transverse profiles such that, when these supports are subsequently assembled to one another the inner face against the inner face, they delimit between them a series of parallel cells opening on at least one of the transverse faces of the assembly of the two supports; characterized in that the inner face of at least one of these supports is then coated with at least one metallized track at the location of each cell; and in that we finally assemble the two supports in the above-mentioned manner.
  • this definition of the method does not exclude the use of more than two supports to constitute the same female connector element, provided that each cell is delimited by two such supports, at least one of which is made of elastic plastic material. .
  • the invention also relates to a female electrical connector element intended to cooperate with plugs of diameter preferably at most equal to 0.3 mm, which female element is formed by two supports made of insulating material, one of which at least is made of elastic plastic material and which are assembled one to the other inner face against inner face, the profiles of these two supports being such that thus assembled, they delimit between them a series of parallel cells opening onto the 'at least one of the transverse faces of the assembly of the two supports, characterized in that the interior face of at least one of these supports is coated with at least one metallized track at the location of each cell.
  • this definition of the female connector element does not exclude the use of more than two such supports to constitute this element.
  • each cell with a surface thus partially or totally coated with at least one metallized track it is possible to introduce, by one or each of the abovementioned transverse faces, a practically non-deformable plug whose diameter is slightly greater than the diameter of the circle. which fits into the cross section (at rest) of said cell and establish an electrical connection between this plug or these two plugs and the metallized track of the cell, with a pressure due to the deformation of the or each support in elastic plastic material, this deformation being caused by the insertion of the plug (s) in this cell.
  • the metallized tracks used according to the invention have thicknesses generally less than 0.1 mm and having in especially the following values, depending on the metal from which they are made:
  • Figure 1 shows separately, in perspective, two types of supports intended to constitute a female electrical connector element according to a first embodiment of the invention.
  • FIG. 2 shows, in profile, a female connector element constituted by the assembly of three supports which are chosen from the two types illustrated in FIG. 1.
  • Figures 3 and 4 show, in section through a plane passing through a series of rings, a connector comprising a female element according to this first embodiment, respectively before and after unilateral plugging.
  • FIG. 5 shows, by way of example, the form of metallized tracks deposited on a support, of one of the types illustrated in FIG. 1, shown in perspective.
  • Figures 6 and 7 show, by views similar to those of Figures 1 and 2 respectively, on the one hand, two types of supports of a female connector element established according to a second embodiment of the invention and, d on the other hand, this connector element itself.
  • Figure 8 shows, in a view similar to that of Figures 2 and 7, a female connector element established according to a third embodiment of the invention.
  • FIGS. 9 and 10 each show, in perspective, two supports intended to constitute a female connector element established according to a fourth and a fifth embodiment and shows metallized tracks established according to variants of those of FIG. 5.
  • FIGS. 11, 12 and 13 illustrate the deformation of metallized tracks caused by the introduction of a plug
  • FIG. 11 being a perspective view corresponding to one of the types of metallized tracks of FIG. 9
  • FIGS. 12 and 13 being views respectively in cross section and in longitudinal section corresponding to one of the types of metallized tracks of FIG. 10.
  • FIG. 14 illustrates in perspective a sixth embodiment of the invention applied to a connector for printed circuit boards.
  • FIG. 15 shows in perspective a support established according to a variant of FIG. 5.
  • FIG. 16 shows in perspective two complementary plugs which can be used with the female connector element of FIG. 2.
  • FIGS. 1 to 4 illustrate a first embodiment of the invention.
  • insulating supports made of elastic plastic material such as 1 and 2 having roughly the form of plates, parallel notches 3 are provided, of semi-circular profile for example, in which, before assembly of these supports, metallization (for example copper) into gold (or other suitable metal or alloy) is carried out in a known manner, followed, where appropriate, by an electrolytic protective deposit.
  • metallization for example copper
  • gold or other suitable metal or alloy
  • FIG. 1 the support 1 has notches 3 on its two faces and the support 2 on one of its faces only.
  • These different supports for example two in number (two supports 2 joined by their notched faces) or three (a support 1 between two supports 2, as shown in FIG. 2), are then permanently assembled either by gluing, either by ultrasonic welding for example, so as to constitute a female connector element 7 where the notches 3 forming, two by two, a cell 4 (FIG. 2) of closed profile (circular in the example shown).
  • a connector can be made up of three main elements: two similar connector male elements 5 each equipped with parallel plugs 6 and a female connector element 7 provided with cells 4 which open on the two transverse faces 14 and 15 and which, in the unilateral plug-in position shown in FIG. 4, make it possible to electrically connect the plugs 6 of one of the male connector elements 5 respectively to the aligned plugs 6 of the other male element 5.
  • the female connector element 7 can be permanently connected (by gluing, ultrasonic welding or similar method) to one (shown at the bottom of FIG. 5) of the male connector elements 5, the other male element 5 (represented at the top of FIG. 4) being able to be inserted or not at will in the event of connection or logout.
  • the support 1 could be made of elastic plastic, the support 2 then being made of practically rigid plastic.
  • the cells 4 could only open on one of the transverse faces, the face 15 (FIG. 3) for example.
  • the metallized tracks of these cells could be joined to circuit elements, on one side, by plugs such as 6 and, on the other side, by means other than plugs and such for example as soldered wires.
  • the elastic plastic material delimiting totally or partially each cell 4 deforms elastically, as will be explained in more detail below, giving the contact pressure and the electrical connection with the plug is ensured by the metallization deposit produced in this cell.
  • FIGS. 1 and 2 show notches 3 having an open semi-circular profile so as to produce, in pairs, cells 4 of circular closed profile. They can also have a triangular shape, like the notches 3a of FIG. 6, or trapezoidal, like the notches 3c of FIG. 9, and in this case be formed either on the two supports as in the case of the insulating support 9 of the Figure 7, or preferably on the single insulating support 9 ( Figure 6) or 9c ( Figure 9), the other support 10 then being flat.
  • the female connector element 7 is then presented either according to FIG. 7 where a support 9, provided with notches 3a on its two faces, is sandwiched between two supports 10 planes, or according to FIG.
  • the closed profile of the cell 4 is identical to the open profile of the triangular notch 3a or trapezoidal 3c.
  • this triangular or trapezoidal shape makes it possible to obtain the tightening of a plug such as 6 on three generatrices.
  • the non-notched supports 10 can be made either also of elastic plastic material, or preferably of non-elastic plastic material .
  • the deformation of the plastic is small, it is advantageous, to increase reliability, to carry out the metal deposition in each cell 4 not on the entire surface of the cell, but according to relatively narrow metallized tracks capable of '' ensure electrical continuity from one end to the other of the cell.
  • notches 3 of semicircular profile formed in a support 2 of elastic plastic material it is possible for example, as shown in FIG. 5, to have recourse to metallized tracks 8 arranged according to the generatrices (straight lines) of the semi-cylindrical surface the notch 3 or to metallized tracks 8a arranged parallel to each other in sinuous paths from one end to the other of the notch 3.
  • metallized tracks 8 or 8a thus follow paths which can practically not deform during the introduction of a sheet 6.
  • the metallized tracks can, according to a first solution illustrated in FIG. 9, be provided only on this planar support 10, whether the latter is made of elastic plastic material or almost rigid.
  • FIG. 9 illustrates three possible forms for such metallized tracks: rectilinear tracks 11, tracks 16 in the form of a comb with teeth 17 and tracks 18 in the form of scales with transverse bars 19 and uprights 19a.
  • FIG. 11 illustrates the deformation of a metallized track 16 in the form of a comb of FIG. 9 which is formed from one end to the other of a cell 4 on a support 10 of elastic plastic material, so that the track continuous 16a, constituting the back of the comb, is offset laterally relative to the center of the cell. It can then be seen that the plug only touches the teeth 17 and that consequently the deformation caused on the support 10 by the insertion of a plug 6, is located on these teeth 17 and does not concern the continuous track 16a. There is therefore no risk of it being worn by friction or of being chipped off by the deformation of the support 10. The same effect is obtained with the metallized tracks 18 in the form of a ladder in FIG. 9, each of the uprights 19a of the ladder behaving like the continuous metallic track 16a of FIG. 11. This increases the reliability of the connection by multiplying the contact points.
  • the metallized tracks such as 11, 16 and 18 could be provided on a plane support which is no longer elastic but relatively rigid, the insertion of the plug 6 then causing the deformation of the support 9c with notches 3c. In any case, not being metallized, these notches 3c of the support 9c only serve to transmit the pressure of the plug 6 against the metallized tracks of the other support 10.
  • the elastic plastic it is possible to provide, in the notches such as 3, 3a and 3c, whether they are of semi-circular, triangular or polygonal profile, longitudinal or transverse bosses on which a metallization is deposited and, among other things, grooves or ribs parallel or perpendicular to the axis of the cell, or even inclined with respect to this axis, and obtained, during the molding of the support of insulating material, by the use of mandrels in which have been formed grooves, these being parallel, perpendicular or inclined relative to the axis and corresponding to the above grooves or ribs.
  • a support 9c is shown, the cells 3c of which have transverse bosses 20 which carry the only metallized tracks 21 with which the plugs come into contact 6.
  • the transverse metallized tracks 21 are electrically joined together by a longitudinal metallized track 22, formed at the bottom of the trapezoidal notch 3c, which is thus thus removed from the risks of wear by friction and flaking by repeated deformations, like the longitudinal track 16a of the figures 9 and 11.
  • tracks 21 and 22 are shown similar to those of the right side, the only difference being the absence of bosses such as 20.
  • the insertion of a plug such as 6 causes a deformation of each transverse track 21 as shown in FIG. 12, without deformation of the longitudinal track 22.
  • the presence of the recesses between bosses 20 (FIG. 10) or of a central recess 24 (see FIG. 13) has the advantage that the transverse tracks 21 deform independently of each other, which prevents local deformations due to the insertion of a first plug 6 (see on the right of FIGS. 10 and 13) on one of the transverse faces 14 of the female connector element 7, to propagate towards the other transverse face 15 and to disturb accordingly contact when a second plug is inserted by the other transverse face 15.
  • each of the insulating material supports constitutes an element specially made for the female connector element.
  • one of the supports in particular when it is a flat support made of practically non-deformable insulating material, can be part of an electrical or electronic component, such as a printed circuit board.
  • FIG. 14 shows the application of the invention to the connection between a mother board 27 and a daughter board 25 provided, on at least one of its edges, with metallic connection tracks 26. It then suffices to adapt to the motherboard 27 a male connector element 5 of the type shown in FIGS. 3 and 4 and to use the daughter card 25 as a substantially rigid plane support, similar to those designated by 10 in FIGS. 6, 7, 8 and 9. By bonding or welding by ultrasound or other method, the notched supports are then reported on the daughter card 25, such as that designated by 9c in FIG. 9, by making their notches 3c with tracks 26, which then play the role of tracks 11 in FIG. 9.
  • the invention also provides for the use of insulating plastic (elastometer), thermoplastic or other material) to give contact pressure to the adjoining parts of two plugs 12, 13, housed end to end in overlapping in the same cell 4 whose diameter at rest is less than the diameter of the adjoining parts of these sheets.
  • the two non-deformable plugs 12 and 13 have circular profiles of the same diameter D and end with complementary profiles, for example semi-circular, which can be joined and which together form a circular profile of diameter D, this diameter being greater than diameter d at rest (see FIG. 2) of the cell 4.
  • one of the supports is made of non-elastic material, it allows the sheets 6 to be centered more precisely than if it were made of elastic material.
  • the sheets 6, 12 and 13 can be of round, rectangular or polygonal section. They can be made of a machined metal rod or the bare end of a conductive wire. Being a machined metal rod, these plugs are preferably coated with an electrolytic protection (nickel plus gold, for example).

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  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (11)

1. Verfahren zur Herstellung eines Buchsenelements eines elektrischen Verbinders, das zum Zusammenwirken mit Steckern bestimmt ist, deren Durchmesser vorzugsweise höchstens 0,3 mm betragt, wobei man getrennt zwei Träger aus isolierendem Material bildet, von denen wenigstens einer aus elastischem Plastikmaterial besteht, indem man diesen Trägern solche Querprofile gibt, daß wenn diese Träger schließlich mit ihren Innenseiten gegeneinander gerichtet zusammengebaut werden, sie zwischen sich eine Reihe von parallelen Zellen bilden, die sich auf wenigstens einer der Querflächen der Trägergruppe öffnen, dadurch gekennzeichnet, daß man anschließend die Innenseite wenigstens des einen dieser Träger mit wenigstens einer metallisierten Bahn an der Stelle einer Jeden Zelle bedeckt, und daß man schließlich die zwei Träger in der oben erwähnten Weise zusammenbaut.
2. Buchsenelement eines elektrischen Verbinders, das zum Zusammenwirken mit Steckern (6) bestimmt ist, deren Durchmesser vorzugsweise höchstens 0,3 mm beträgt, welches Buchsenelement von zwei Trägern (1' 2;, 9' 10 oder 25) aus isolierendem Material gebildet ist, von denen wenigstens einer aus elastischem Plastikmaterial besteht und die mit ihren Innenseiten gegeneinander gerichtet zusammengebaut werden wobei die Profile dieser Träger derart sind, daß wenn sie so zusammengebaut werden, sie zwischen sich eine Reihe von Parallelen Zellen (4) bilden, die sich auf wenigstens einer der Querflächen (14, 15) der Anordnung aus den zwei Trägern öffnen, dadurch gekennezeichnet, daß die Innenseite wenigstens einer dieser Träger von wenigstens einer metallisierten Bahn (8, 8a; 16, 18; 21-22) an der Stelle einer jeden Zelle (4) bedeckt ist.
3. Verbinderelement nach Anspruch 2, dadurch gekennzeichnet, daß die Zellen (4) jeweils zusammen von zwei gegenüberstehenden Vertiefungen (3) gebildet sind, die jeweils in den zwei zusammengebauten Trägern (1, 2) ausgebildet sind.
4. Verbinderelement nach Anspruch 3, dadurch gekennzeichnet, daß die Zellen (4) im unbenutzten Zustand ein kreisförmiges Profil haben, wobei jede Vertiefung (3) ein halbkreisförmiges Profil hat.
5. Verbinderelement nach Anspruch 2, dadurch gekennzeichnet, daß die Zellen (4) jeweils von einer Vertiefung (3a, 3c) gebildet sind, die in einem der Träger (9, 9a, 9c) ausgebildet ist, und von dem anderen Träger (10, 25) begrenzt ist, der eine ebene Gestalt hat.
6. Verbinderelement nach Anspruch 5, dadurch gekennzeichnet, daß der Träger ebener Gestalt (5) von einer Druckschaltkarte gebildet ist.
7. Verbinderelement nach einem der Ansprüche 5 und 6, dadurch gekennzeichnet, daß die Vertiefungen (3a, 3c) ein polygonales Profil, insbesondere dreieckiges oder trapezförmiges Profil haben.
8. Verbinderelement nach Anspruch 4, dadurch gekennzeichnet, daß jede Vertiefung (3) mit mehreren metallisierten Bahnen (8, 8a) versehen ist, die zueinander parallel angeordnet sind und sich von einer Querseite (14) zur anderen (15) erstrecken.
9. Verbinderelement nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, daß die metallisierten Bahnen (16, 18, 21-22) getrennte Querabschnitte (17, 19, 21) aufweisen, die dazu bestimmt sind, mit einem Stecker (6) in Berührung zu treten, sowie wenigstens einen Längsabschnitt (16a, 19a, 22), der vertieft gegenüber dem Raum gelegen ist, der für den oder die Stecker (6) bestimmt ist und elektrisch mit den Querabschnitten (17, 19, 21) verbunden ist und eine elektrische Verbindung zwischen der einen Querseite (14) und der anderen Querseite (15) sicherstellt.
10. Verbinderelement nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, daß die Zellen (4) wenigstens eine Querausnehmung (24) aufweisen.
11. Verbinderelement nach den Ansprüchen 9 und 10 mit mehreren Querausnehmungen, dadurch gekennzeichnet, daß diese Querausnehmungen durch Vorsprünge (20) begrenzt sind, die mit metallisierten Bahnen (21) versehen sind.
EP85902066A 1984-05-07 1985-05-06 Elektrische steckdosenverbindungselemente und deren herstellungsverfahren Expired EP0181362B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8407045A FR2563948B1 (fr) 1984-05-07 1984-05-07 Perfectionnements aux connecteurs electriques et aux procedes de fabrication de ceux-ci
FR8407045 1984-05-07

Publications (2)

Publication Number Publication Date
EP0181362A1 EP0181362A1 (de) 1986-05-21
EP0181362B1 true EP0181362B1 (de) 1988-05-18

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EP85902066A Expired EP0181362B1 (de) 1984-05-07 1985-05-06 Elektrische steckdosenverbindungselemente und deren herstellungsverfahren

Country Status (5)

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US (1) US4705336A (de)
EP (1) EP0181362B1 (de)
DE (1) DE3562845D1 (de)
FR (1) FR2563948B1 (de)
WO (1) WO1985005229A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19823509C1 (de) * 1998-05-26 1999-11-18 Framatome Connectors Int Klemmverbindung in metallisierter Kunststoffausführung

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DE3806793A1 (de) * 1988-02-29 1989-09-07 Siemens Ag Adaptereinrichtung fuer eine vorrichtung zum pruefen von leiterplatten
US5153818A (en) * 1990-04-20 1992-10-06 Rohm Co., Ltd. Ic memory card with an anisotropic conductive rubber interconnector
US5190472A (en) * 1992-03-24 1993-03-02 W. L. Gore & Associates, Inc. Miniaturized high-density coaxial connector system with staggered grouper modules
US6106326A (en) * 1998-05-27 2000-08-22 Framatome Connectors Interlock, Inc. Electrical connector with contact retaining module formed from reverse alternating modular frame pieces
JP4041619B2 (ja) * 1999-05-28 2008-01-30 東京エレクトロン株式会社 インターコネクタの製造方法
DE102013201167A1 (de) * 2013-01-24 2014-08-07 Elringklinger Ag Verfahren zum Herstellen einer elektrisch leitenden Verbindung zwischen einer elektrischen Leitung und einem elektrisch leitenden Bauteil und nach dem Verfahren hergestellte Baugruppe

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FR1174063A (fr) * 1957-03-30 1959-03-05 Coupleurs électriques à bornes
US3562699A (en) * 1967-06-02 1971-02-09 Ericsson Telefon Ab L M Electric contact and base plate assembly
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JPS55132408A (en) * 1979-03-30 1980-10-15 Shinetsu Polymer Co Socket type connector
DE3024213C2 (de) * 1980-06-27 1982-09-02 Vdo Adolf Schindling Ag, 6000 Frankfurt Verfahren zur Herstellung von auf einen Träger aufgebrachten Leiterbahnen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19823509C1 (de) * 1998-05-26 1999-11-18 Framatome Connectors Int Klemmverbindung in metallisierter Kunststoffausführung

Also Published As

Publication number Publication date
FR2563948A1 (fr) 1985-11-08
US4705336A (en) 1987-11-10
FR2563948B1 (fr) 1987-07-17
EP0181362A1 (de) 1986-05-21
DE3562845D1 (en) 1988-06-23
WO1985005229A1 (fr) 1985-11-21

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