EP2858180B1 - Élément de contact électrique pour une connexion enfichable dotée d'une carte de circuit imprimé - Google Patents

Élément de contact électrique pour une connexion enfichable dotée d'une carte de circuit imprimé Download PDF

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Publication number
EP2858180B1
EP2858180B1 EP14003404.2A EP14003404A EP2858180B1 EP 2858180 B1 EP2858180 B1 EP 2858180B1 EP 14003404 A EP14003404 A EP 14003404A EP 2858180 B1 EP2858180 B1 EP 2858180B1
Authority
EP
European Patent Office
Prior art keywords
spring legs
contact element
gap
bore
contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP14003404.2A
Other languages
German (de)
English (en)
Other versions
EP2858180A1 (fr
Inventor
Uberto Gamaggio
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2858180A1 publication Critical patent/EP2858180A1/fr
Application granted granted Critical
Publication of EP2858180B1 publication Critical patent/EP2858180B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural 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
    • H01R12/50Fixed connections
    • H01R12/51Fixed connections for rigid printed circuits or like structures
    • H01R12/55Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • H01R12/585Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board

Definitions

  • the invention relates to a contact element according to the preamble of patent claim 1.
  • a contact element which has an elastic deformable plane which makes it suitable for insertion through a through hole in a printed circuit board.
  • the elastically deformable surface comprises two to each other. parallel spring legs connected by a deformable bridge. This is intended to ensure that the spring legs rest against the inner wall of the bore of the circuit board.
  • the deformable bridge comprises in cross-section a flat portion which extends at right angles to the two opposite spring legs and has an upper and a lower surface. From the opposite ends of the upper surface extend outwardly two inclined portions which adjoin the spring legs.
  • Such a Kaltlötharm has a good electrical conductivity and a good thermal conductivity.
  • a good electrical connection is made with the inner wall of the bore, wherein the Torsional movement of the spring leg at least in its last phase represents a rolling motion on the inner wall of the bore.
  • the spring legs in Toward each other have a trough-shaped depression. Through the trough-shaped depression divided by the gap it is achieved that the spring legs have a high degree of elasticity and, when they are inserted into the bore of the printed circuit board, form a large contact outer area with the bore of the printed circuit board. This assists in the production of a fixed connection to the wall of the bore to the printed circuit board by a cold solder joint.
  • the fulcrum of this rotational movement is in the region of the gap.
  • the legs in the first direction approximately in the middle of their length each have a wider contour which tapers toward both the contact post and its tips.
  • the trough formed between the legs extends in the first direction, i. H. in the plug-in direction, flatter in the direction of the contact post and also flat in the direction of the tips of the legs, so there rises slightly.
  • a galvanic coating is preferably used.
  • a particularly low insertion force is ensured in the circuit board and formed by the torsional force of the individual legs an optimal contacting surface for printed circuit board hole.
  • the open tips of the spring legs allow a flat spring characteristic with a particularly gentle and low insertion force when introduced into a bore.
  • the contacting made possible according to the invention is based on a flexible press-in zone, as formed by the two spring legs.
  • the contact element provided according to the invention has a reduced scattering of the spring force.
  • the shape of the spring legs results in a uniform distribution of the Hertzian stresses and the deformations in the contact zones; in particular, these are much smaller than contact elements according to the prior art.
  • good self-concentration in the press-in zone is achieved by the selected shape of the spring leg with the trough-shaped recess.
  • a contact element 1 ( Fig. 1 to 6 ) comprises at its upper end a contact post 2, which in turn carries at its lower end two integrally connected with the contact post 2 and separated by a narrow gap 3 spring legs 4, 5.
  • the gap 3 extends in the direction of a Axis A and preferably has the same width over its entire length; the gap 3 is formed during punching by a shearing process.
  • the recess 8 forms in cross section ( Fig. 2 ), ie transverse to the direction of the axis A, a substantially trapezoidal recess 9. Laterally of the recess form the spring legs 4, 5 each quadrangular contours 10, 11 and 12, 13, each having rounded corners. In a diagonal direction relative to an axis B and an axis C, a depression 14 is present between the quadrangular contours 10 and 12, and a depression 15 is provided between the contours 11 and 13.
  • the depression 8 flattens off both in the direction of the contact post 2 and in the direction of the tips 16, 17.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (7)

  1. Élément de contact (1), destiné à établir une connexion par enfichage avec un perçage (21) comportant une paroi intérieure, l'élément de contact (1) étant conçu en tant que potelet de contact (2) avec un élément à ressort qui y est monté en monobloc, lequel comporte deux branches (4, 5) de ressort parallèles l'une à l'autre, dans une direction d'enfichage, les branches (4, 5) du ressort étant séparées l'une de l'autre par un interstice (3) présentant la même largeur sur toute sa longueur,
    caractérisé en ce qu'à la transversale de la direction d'enfichage et à la transversale de l'interstice (3), les branches (4, 5) du ressort ont un contour extérieur recourbé de manière convexe et dans le perçage (21), dans un plan transversal à la direction d'enfichage, sont cintrables dans la direction d'un point médian du perçage (21) et déformables par un mouvement de rotation, en ce que les branches (4, 5) du ressort comportent un évidement ou un creux (8) en forme d'auge, symétrique à l'axe, chevauchant l'interstice (3) qui s'étend sur toute la longueur des branches (4, 5) du ressort ou la longueur de l'interstice (3), en ce que l'évidement ou le creux (8) en forme d'auge a une section transversale de forme trapézoïdale et en ce que les branches (4, 5) du ressort forment latéralement de l'évidement ou du creux (8) chaque fois des contours carrés (10, 11, 12, 13) qui comportent chaque fois des angles arrondis et en ce que l'interstice (3) est élargissable sur le côté opposé à la paroi intérieure du perçage (21).
  2. Élément de contact (1) selon la revendication 1,
    caractérisé en ce que
    le point de rotation du mouvement de rotation se situe dans la région de l'interstice (3).
  3. Élément de contact (1) selon l'une quelconque des revendications 1 à 2,
    caractérisé en ce que
    dans la section transversale, dans une direction respectivement à la diagonale d'un deuxième (B) et d'un troisième axes (C), les branches (4, 5) présentent chacune sur les faces mutuellement opposées un contour (13, 14) en forme d'auge.
  4. Élément de contact (1) selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    sur leurs pointes (16, 17) du côté d'enfichage, les branches (4, 5) sont arrondies chacune dans la direction d'enfichage.
  5. Élément de contact (1) selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce
    qu'à l'encontre de la direction d'enfichage, l'interstice (3) saillit pardessus la longueur du creux (8), en direction du potelet de contact (2).
  6. Élément de contact (1) selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    dans la direction de leur axe longitudinal, environ au milieu de leur longueur, les branches (4, 6) du ressort ont chacune un contour (10, 11) plus large qui se rétrécit respectivement aussi bien dans la direction du potelet de contact (2) qu'également vers leurs pointes (16, 17).
  7. Élément de contact (1) selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    dans la première direction (A), le creux (8) formé entre les branches (4, 5) du ressort est conçu en étant plus plat dans la direction du potelet de contact (2) et en étant également plus plat dans la direction des pointes (16, 17) des branches (4, 5) du ressort.
EP14003404.2A 2013-10-02 2014-10-02 Élément de contact électrique pour une connexion enfichable dotée d'une carte de circuit imprimé Not-in-force EP2858180B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201320008679 DE202013008679U1 (de) 2013-10-02 2013-10-02 Elektrisches Kontaktelement für eine Steckverbindung mit einer Leiterplatte

Publications (2)

Publication Number Publication Date
EP2858180A1 EP2858180A1 (fr) 2015-04-08
EP2858180B1 true EP2858180B1 (fr) 2017-04-12

Family

ID=51661853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14003404.2A Not-in-force EP2858180B1 (fr) 2013-10-02 2014-10-02 Élément de contact électrique pour une connexion enfichable dotée d'une carte de circuit imprimé

Country Status (2)

Country Link
EP (1) EP2858180B1 (fr)
DE (1) DE202013008679U1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2639890A1 (fr) * 2012-03-16 2013-09-18 Dai-Ichi Seiko Co., Ltd. Borne de connecteur de type à ajustement serré

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691979A (en) * 1983-08-04 1987-09-08 Manda R & D Compliant press-fit electrical contact
DE4132996C2 (de) * 1991-05-16 2003-03-20 Eads Deutschland Gmbh Kontaktstift für Leiterplatten
JP2929176B2 (ja) 1996-09-20 1999-08-03 モレックス インコーポレーテッド プレスフィットピン
JP3166706B2 (ja) * 1998-04-14 2001-05-14 日本電気株式会社 プレイスインコンタクト
JP2000332370A (ja) * 1999-05-21 2000-11-30 Sanwa Denki Kogyo Co Ltd コンプライアント端子
US6338632B1 (en) * 2000-07-05 2002-01-15 Hon Hai Precision Ind. Co., Ltd. Compliant, press fit electrical contact having improved retention
DE102004028202B4 (de) * 2004-06-09 2006-10-05 Veigel, Andreas, Ing.(grad.) Einpresskontakt

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2639890A1 (fr) * 2012-03-16 2013-09-18 Dai-Ichi Seiko Co., Ltd. Borne de connecteur de type à ajustement serré

Also Published As

Publication number Publication date
DE202013008679U1 (de) 2015-01-05
EP2858180A1 (fr) 2015-04-08

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