EP1028490B1 - Koaxialverbinder zum Verbinden von zwei Leiterplatten - Google Patents

Koaxialverbinder zum Verbinden von zwei Leiterplatten Download PDF

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Publication number
EP1028490B1
EP1028490B1 EP00400335A EP00400335A EP1028490B1 EP 1028490 B1 EP1028490 B1 EP 1028490B1 EP 00400335 A EP00400335 A EP 00400335A EP 00400335 A EP00400335 A EP 00400335A EP 1028490 B1 EP1028490 B1 EP 1028490B1
Authority
EP
European Patent Office
Prior art keywords
conductor
printed circuit
connector according
contact
external
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 - Lifetime
Application number
EP00400335A
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English (en)
French (fr)
Other versions
EP1028490A1 (de
Inventor
Olivier Gonzales
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.)
Radiall SA
Original Assignee
Radiall 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 Radiall SA filed Critical Radiall SA
Publication of EP1028490A1 publication Critical patent/EP1028490A1/de
Application granted granted Critical
Publication of EP1028490B1 publication Critical patent/EP1028490B1/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
    • 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
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • 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
    • H01R12/7082—Coupling device supported only by cooperation with PCB
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/50—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted on a PCB [Printed Circuit Board]

Definitions

  • the present invention relates to a coaxial connection for connecting two cards of printed circuit board.
  • coaxial connectors which are devices of the type consisting of two connector elements, which are each soldered on a printed circuit and can mate with each other when the two cards are brought together printed circuit from each other.
  • each connector element must be exactly in the axis of the connector element with which it must be coupled, which is only possible if the relative positions of the connector elements together on a card, are strictly identical to the relative positions of the corresponding connector elements on the other card.
  • the coupling interface must have exactly the same clearance. axial from one connector to another, which is not easy to obtain even if the connectors are all identical because two connector elements on the same card do not are not necessarily strictly in the same plane, due in particular to their soldering on the board.
  • the known coaxial connectors have a relatively high important in the connected state, which sets a lower limit to the distance at which it is possible to bring together the two printed circuit boards thus connected.
  • the present invention aims to provide a coaxial connection between two cards of printed circuit which does not have the drawbacks mentioned above and provides by elsewhere other advantages which will appear in the following description.
  • the mounting lugs and / or the contact lugs may be subject to card tracks or coming under pressure against them.
  • the contact tabs are shaped into elastically deformable tabs extending from the conductor in a direction oblique to the plane of the two printed circuit boards and finished by a support zone substantially parallel to the plane of the two printed circuit boards, support zone by which said contact tabs are applied against the second printed circuit board.
  • the electrical contact between the contact tabs and the conductive tracks of the second printed circuit board are established by putting the contact tabs in pressure against the tracks of the second card at the moment when this last is close to the first contact card.
  • This embodiment has the advantage of absorbing positioning differences between the two printed circuit boards, especially in the case where the two boards circuit boards are connected by several coaxial connections according to the invention.
  • each support zone comes into contact of a conductive track of the second printed circuit board by sliding slightly against this track due to the deformation of the tongue, which leads to self-cleaning contact surfaces and guarantees a good electrical connection between the tabs contact and conductive tracks.
  • the two printed circuit boards can be separated from each other without the connection being subjected to any traction, which preserves the mounting tabs for mechanical pull-out stresses.
  • These latter mounting lugs can, according to the invention, be subject to the first printed circuit board by soldering or surface welding of the circuit board printed or by soldering or welding in metallized holes of the latter.
  • the subjugation can also be achieved by force insertion into metallized holes using press-fit pins.
  • the external conductor is made in one piece by cutting and rolling a metal sheet.
  • the internal conductor is formed by a curved metal strip at each die its ends, these curved parts constituting the contact tab and the mounting tab of the internal conductor.
  • the through passage of the tubular insulation can advantageously be offset to the external conductor to lengthen the contact tabs and mounting the internal conductor without increasing the overall size of the fitting on the menu.
  • the strip constituting the internal conductor is rolled in its middle part lying between the contact tab and the mounting tab, so as to constitute a more rigid tubular internal conductor.
  • the contact tabs and / or the mounting lugs are curved towards the inside of the cylinder constituting the conductor external, in order to reduce the size of the connector on the card.
  • the tubular insulator is made by simple molding and is assembled with the internal and external conductors.
  • the insulation may include a lateral slit connecting its through passage to one of its generators and allowing the introduction by radial translation of the internal conductor.
  • a slot is particularly useful when the contact tabs and mounting of the internal conductor have already been bent and are no longer in the axis of its middle part.
  • the internal conductor When the mounting and contact tabs are in the extension from the middle part of the internal conductor, the internal conductor can be inserted into the through passage of the insulation by axial translation.
  • the tubular insulation is produced by overmolding around the internal conductor.
  • the tubular insulation comprising or not the internal conductor, is introduced into the external conductor where it is retained by snap.
  • the tubular insulation is produced by overmolding on the internal conductor and on the external conductor, suitably positioned in relation to each other in the mold, which makes it possible to obtain the connector according to the invention in a single molding operation, without any operation for mounting or assembling between the various constituent parts of the fitting is required.
  • the overmolding of the internal and external conductors may be accompanied by the formation of an insulating envelope covering the outer wall of the external conductor.
  • the tubular insulation has, on the side of the second external conductor base, a flat surface giving grip to suction nozzles of a "pick and place” type gripping device, which is commonly used in the field of the invention.
  • the coaxial connection according to the invention has a structure which allows it give very small dimensions and use it in miniature applications such than telephony.
  • the connector according to the invention may have a height overall of the order of 3mm.
  • the coaxial connection 1 comprises an external conductor 2 formed by cutting and rolling a metal strip into a cylinder split along one of its generators 3.
  • two legs mounting 5 extend perpendicularly to the axis of said cylinder, towards the outside thereof.
  • two contact tabs 7 extend in an oblique direction with respect to the axis of the cylinder, also towards the outside thereof.
  • Each contact tab 7 ends in a flat support zone 8 in the form portion of ring coaxial with the cylinder, which is substantially perpendicular to the axis of the cylinder.
  • each mounting tab 5 is the projection along the axis of the cylinder of one of the contact tabs 7.
  • the connector 1 also includes an internal conductor 9 which is a strip "strip line” type curved at each of its ends to form on the one hand a mounting lug 10 extending perpendicular to the axis of the cylinder and on the other hand a contact tab 11 inclined and terminated by a support zone 12 similar to those of contact tabs of the external conductor.
  • an internal conductor 9 which is a strip "strip line” type curved at each of its ends to form on the one hand a mounting lug 10 extending perpendicular to the axis of the cylinder and on the other hand a contact tab 11 inclined and terminated by a support zone 12 similar to those of contact tabs of the external conductor.
  • the middle part of the internal conductor 9 is embedded in a tubular insulator 13 made around this middle part by overmolding then inserted with the conductor internal 9 inside the external conductor 2.
  • the insulation is held axially in the external conductor by snap-fastening, thanks to suitable cutouts (not shown in Figures 1 and 2) made in the wall of the external conductor, as will be described with reference to Figures 3 at 5.
  • the mounting tabs 5, 10 are brazed to conductive tracks of a first printed circuit board 14, while the tabs contact 7, 11 are located opposite a second parallel printed circuit board 15 to the first.
  • the mounting tabs 5 of the external conductor 2 are offset by relative to the axis of the cylinder in the direction opposite to the mounting tab 10 of the conductor internal, they form, with this mounting tab of the internal conductor, a triangle of lift whose barycenter corresponds substantially to the projection along the axis of the cylinder the center of gravity of the fitting.
  • this arrangement of the mounting lugs ensures that each of them rests properly against the first printed circuit board.
  • the electrical contacting of the contact tabs 7, 11 with the conductive tracks of the second printed circuit board 15 is effected by bringing the two together cards from each other and overwriting the contact tabs 7, 11.
  • the driver external 2 ′ is substantially identical to the external conductor previously described, with the difference that its side slot 3 'is wider, which reduces the measurement in which it must be deformed to allow the axial introduction of the tubular insulation 13 ' surrounding the internal conductor.
  • the external conductor 2 has, on each edge of its slot, harpoons 16 cut in the thickness of its wall and directed towards the inside of the cylinder to bear on a shoulder 17 of the tubular insulation cut for this purpose opposite of said harpoons.
  • the tubular insulation 13 ' is here produced by simple molding and has a slot lateral 18 which extends from one of its generatrices to beyond its axis.
  • the slot 18 opens outwards through a chamfer 19 which allows the introduction in force of the internal conductor 9 with its curved ends forming the tab mounting 10 and contact tab 11.
  • the internal conductor 9 has one or more bosses 20 in its part median projecting from its face opposite the mounting and contact tabs.
  • the slit in the tubular insulation is wider than the thickness of the strip constituting the internal conductor but smaller than the overall thickness of this internal conductor, including bosses.
  • the bosses 20 immobilize the internal conductor in the insulation.
  • This internal conductor has a rolled middle portion 22 which gives it a cylindrical shape.
  • This cylindrical shape has several advantages.
  • the connector 2 has 7 “and 11" contact tabs curved inwards, which makes it possible to limit the bulk overall of the fitting, which is also identical to that of FIGS. 3 to 5.
  • the connector could include tabs of assembly shaped like the contact tabs 7 "and 11" of FIGS. 7 and 8. In this case, maintaining the connection between the two cards would be ensured by mechanical means distinct from the legs, since not all of its legs would be connected to the tracks of the cards only by simple pressurization.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)

Claims (15)

  1. Koaxialverbinder für zwei gedruckte Schaltungskarten (14, 15), dadurch gekennzeichnet, daß er aufweist:
    einen zylindrischen Außenleiter (2, 2'), der an einer ersten (4) seiner zwei Grundflächen wenigstens eine Montagefahne (5) hat, die dazu bestimmt ist, mit einer Leiterbahn der ersten gedruckten Schaltungskarte (14) in elektrischen Kontakt zu kommen, und der an seiner zweiten Grundfläche (6) wenigstens eine Kontaktfahne (7) hat, die dazu bestimmt ist, mit einer Leiterbahn einer zweiten gedruckten Schaltungskarte (15) in elektrischen Kontakt zu kommen,
    einen rohrförmigen Isolator (13, 13'), der im Inneren des Außenleiters aufgenommen ist und in dem ein von einer Grundfläche des Außenleiters zur anderen durchgehender Kanal ausgebildet ist, und
    einen Innenleiter (9, 9"), der in dem durchgehenden Kanal des rohrförmigen Isolators aufgenommen ist und der, auf der Seite der ersten Grundfläche des Außenleiters über den rohrförmigen Isolator überstehend, eine Montagefahne (10) aufweist, die dazu bestimmt ist, mit einer Leiterbahn der ersten gedruckten Schaltungskarte (14) in elektrischen Kontakt zu kommen, und der, auf der Seite der zweiten Grundfläche des Außenleiters über den rohrförmigen Isolator überstehend, eine Kontaktfahne (11) aufweist, die dazu bestimmt ist, mit einer Leiterbahn der zweiten gedruckten Schaltungskarte (15) in elektrischen Kontakt zu kommen.
  2. Verbinder nach Anspruch 1, dadurch gekennzeichnet, daß die Montageund/oder Kontaktfahnen an den Leiterbahnen der Karten befestigt oder gegen diese angedrückt sind.
  3. Verbinder nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Kontaktfahnen (7, 11) als elastisch verformbare Zungen ausgebildet sind, die in einer Richtung schräg zur Ebene der beiden gedruckten Schaltungskarten (14, 15) von dem Leiter (2, 2', 9, 9") ausgehen und in einer Anlagezone (8, 12) enden, die im wesentlichen zur Ebene der beiden gedruckten Schaltungskarten parallel ist, wobei die Kontaktfahnen sich mit dieser Anlagezone gegen die zweite gedruckte Schaltungskarte (15) anlegen.
  4. Verbinder nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Montagefahnen (5, 10) an der ersten gedruckten Schaltungskarte (14) befestigt sind durch Löten oder Schweißen an der Oberfläche der gedruckten Schaltungskarte oder durch Löten oder Schweißen in metallisierten Löchern dieser letzteren oder durch kraftschlüssiges Einstecken in metallisierte Löcher mit Hilfe von Druck-Paßstiften.
  5. Verbinder nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Außenleiter (2, 2') in einem Stück durch Ausschneiden und Rollen eines Metallbleches hergestellt ist
  6. Verbinder nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Innenleiter (9, 9") durch ein an beiden Enden umgebogenes Metallband gebildet wird, wobei die umgebogenen Teile die Kontaktfahne (11) und die Montagefahne (10) des Innenleiters bilden.
  7. Verbinder nach Anspruch 6, dadurch gekennzeichnet, daß der durchgehende Kanal des rohrförmigen Isolators zum Zweck der Impedanzanpassung der koaxialen Verbindungsleitung exzentrisch in bezug auf den Außenleiter angeordnet ist.
  8. Verbinder nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß das den Innenleiter (9") bildende Band in seinem zwischen der Kontaktfahne (11) und der Montagefahne (10) liegenden mittleren Teil derart gerollt ist, daß es einen rohrförmigen Innenleiter bildet.
  9. Verbinder nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der rohrförmige Isolator (13, 13') durch einfaches Formen hergestellt und mit den Innen- und Außenleitem zusammengebaut ist.
  10. Verbinder nach Anspruch 9, dadurch gekennzeichnet, daß der Isolator (13') einen seitlichen Schlitz (18) aufweist, der seinen durchgehenden Kanal mit einer seiner Mantellinien verbindet und das Einführen des Innenleiters (9) durch eine radiale Translationsbewegung ermöglicht.
  11. Verbinder nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der rohrförmige Isolator (13) durch Umgießen des Innenleiters (9) gebildet ist.
  12. Verbinder nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, daß der rohrförmige Isolator mit oder ohne Innenleiter in den Außenleiter eingesetzt ist, wo er durch Verrastung gehalten wird.
  13. Verbinder nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der rohrförmige Isolator an den Innenleiter und den Außenleiter angeformt ist, die im Formwerkzeug geeignet relativ zueinander positioniert worden sind.
  14. Verbinder nach Anspruch 13, dadurch gekennzeichnet, daß zusammen mit dem Anformen an die Innen- und Außenleiter eine isolierende Hülle gebildet wird, die die Außenwand des Außenleiters bedeckt.
  15. Verbinder nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß der rohrförmige Isolator (13, 13') auf der Seite der zweiten Grundfläche (6) des Außenleiters eine ebene Oberfläche aufweist, die eine Ansatzfläche für Saugdüsen einer Handhabungsvorrichtung zum Aufheben und Absetzen bildet.
EP00400335A 1999-02-11 2000-02-08 Koaxialverbinder zum Verbinden von zwei Leiterplatten Expired - Lifetime EP1028490B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9901635 1999-02-11
FR9901635A FR2789811B1 (fr) 1999-02-11 1999-02-11 Raccord coaxial pour relier deux cartes de circuit imprime

Publications (2)

Publication Number Publication Date
EP1028490A1 EP1028490A1 (de) 2000-08-16
EP1028490B1 true EP1028490B1 (de) 2002-06-05

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Application Number Title Priority Date Filing Date
EP00400335A Expired - Lifetime EP1028490B1 (de) 1999-02-11 2000-02-08 Koaxialverbinder zum Verbinden von zwei Leiterplatten

Country Status (7)

Country Link
US (1) US6231352B1 (de)
EP (1) EP1028490B1 (de)
JP (1) JP2000243490A (de)
CN (1) CN1148838C (de)
AT (1) ATE218761T1 (de)
DE (2) DE1028490T1 (de)
FR (1) FR2789811B1 (de)

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Publication number Publication date
US6231352B1 (en) 2001-05-15
JP2000243490A (ja) 2000-09-08
FR2789811A1 (fr) 2000-08-18
CN1266295A (zh) 2000-09-13
DE60000187D1 (de) 2002-07-11
CN1148838C (zh) 2004-05-05
DE60000187T2 (de) 2003-01-30
EP1028490A1 (de) 2000-08-16
FR2789811B1 (fr) 2001-05-18
ATE218761T1 (de) 2002-06-15
DE1028490T1 (de) 2001-03-15

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