EP0152769A2 - Broche de connexion pour composants électroniques, particulièrement circuits imprimés - Google Patents

Broche de connexion pour composants électroniques, particulièrement circuits imprimés Download PDF

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Publication number
EP0152769A2
EP0152769A2 EP85100511A EP85100511A EP0152769A2 EP 0152769 A2 EP0152769 A2 EP 0152769A2 EP 85100511 A EP85100511 A EP 85100511A EP 85100511 A EP85100511 A EP 85100511A EP 0152769 A2 EP0152769 A2 EP 0152769A2
Authority
EP
European Patent Office
Prior art keywords
contact pin
thickenings
printed circuit
web
circuit board
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
EP85100511A
Other languages
German (de)
English (en)
Other versions
EP0152769A3 (en
EP0152769B1 (fr
Inventor
Bernhard Guglhör
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.)
GUGLHOER MAGDALENA
Original Assignee
Ept Elekt Praezis Teile & Co GmbH
Ept Elekt Praezis Teile & GmbH
Guglhor Magdalena
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 Ept Elekt Praezis Teile & Co GmbH, Ept Elekt Praezis Teile & GmbH, Guglhor Magdalena filed Critical Ept Elekt Praezis Teile & Co GmbH
Priority to AT85100511T priority Critical patent/ATE30813T1/de
Publication of EP0152769A2 publication Critical patent/EP0152769A2/fr
Publication of EP0152769A3 publication Critical patent/EP0152769A3/de
Application granted granted Critical
Publication of EP0152769B1 publication Critical patent/EP0152769B1/fr
Expired 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
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes

Definitions

  • the invention relates to a contact pin for electronic components, in particular printed circuit boards according to the preamble of patent claim 1.
  • Contact pins are used in considerable quantities for the production of electronic components, in particular for printed circuit boards, in the openings of which the contact pins are inserted.
  • contact pins which have a seat section produced by an embossing process, via which they are anchored in the corresponding opening in the printed circuit board.
  • a known contact pin of this type US Pat. No. 3,824,554
  • two outer sections are delimited by two longitudinal grooves introduced into the wire cross section, which have pointed outer edges with which the contact pin claws into the edge of the openings.
  • the anchoring is essentially caused by the restoring forces built up during the pressing in due to elastic deformation of the outer sections, which result in the contact pin in the seat section clawing into the opening wall of the printed circuit board with the outer edges of the two outer sections.
  • tolerance deviations can be compensated for.
  • Such contact pins with a flexible seat section have advantages over the contact pins rigidly secured by wave soldering, so that they have been used very widely.
  • due to the inherent flexibility there are difficulties in calculating the strength of the press fit, which cannot be reliably predicted.
  • a contact pin is known (US Pat. No. 4,274,699) in which a central web-like compression zone has two outer surfaces connects sections together, which are used to abut the edge of the circuit board opening. When the contact pin is pressed in, a plastic deformation is essentially to be brought about in the region of the compression zone.
  • the central web is comparatively narrow.
  • the web When deformed as a result of the pin being pressed into the corresponding printed circuit board opening, the web is laterally folded or buckled, which, however, does not result in a predominantly plastic deformation, but rather in a deformation with a substantial elastic component and thus to build up a correspondingly large elastic Restoring forces is coming. Due to this lateral folding or bending out of the web, the pin can spring back to its initial position at least to a certain extent if it is removed again from the circuit board opening. In extreme cases, the contact pin can shear beyond the shear limit in the web area with a corresponding load, so that two separate legs are formed in the seat section, which in turn cause the contact pin to be held within the circuit board opening by elastic restoring forces.
  • the object of the invention is to provide a contact pin which enables a controlled compression without lateral buckling during the press-in process and thus a stabilized compression.
  • the web is provided with lateral thickenings, whereby lateral deflection of the material within the compression zone is excluded when the contact pin is pressed in and the plastic deformation that occurs in the process. Rather, the deformation in the central zone of the contact pin, that is to say in the compression zone, is stabilized by displacing the material radially into the center of the contact pin, that is to say in the compression zone.
  • the outer sections are not deformed here, rather they are pressed together in the direction of a constant axis radially to the axis of the contact pin and are therefore not subjected to any deformation or bending. There is thus essentially a reduction in the radial length of the contact pin in the seat section transverse to the actual longitudinal axis of the contact pin.
  • the material collects essentially within the web area, which is compressed into a spherical ball.
  • the thickening is advantageously spherical, in particular in the form of a segment of a circle.
  • the thickenings are advantageously provided only in sections over the length of the seat section and are interrupted by thickening-free sections. As a result, the force required for the compression during compression can be regulated in an advantageous manner.
  • the contact pin being seated firmly and rigidly within the corresponding circuit board opening after the press-in process as a result of this deformation.
  • the compression zone precludes further receding of the contact sections of the seat section, as is the case with contact pins with a greater proportion of elastic deformation.
  • FIG. 1 and 2 show the cross section of a seat section of a contact pin for printed circuit boards, with which the contact pin with a press fit is received in an opening with a circular cross section, indicated by dotted lines in FIG. 2, in a printed circuit board (not shown).
  • the one generally designated 1 has Seat section a web 2 representing a predetermined compression zone S, which is arranged centrally and extends along the axis of the contact pin substantially over the axial length of the seat section 1 or the press-in zone.
  • the compression zone S formed by the central web 2 merges via trumpet-shaped widenings 3 into outer sections 4 which are arranged radially opposite one another with respect to the pin axis and which serve for contacting the edge of the opening of the printed circuit board after the pressing.
  • the outer edges 5 of the outer sections 4 are rounded for gentle handling of the opening wall of the printed circuit boards. Via the rounded outer edges 5, the outer sections come into press contact with the edge of the printed circuit board opening when the contact pin is pressed into the printed circuit board, as is indicated in FIG. 2.
  • the outer sections 4 are formed from an essentially rectangular plan, which is based on the fact that the seat section or the press-in zone of the contact pin is formed from a contact pin with a rectangular, in particular square, cross section by embossing by means of two opposing stamps. The width of the stamp corresponds essentially to the radial dimension of the web of the compression zone.
  • the web 2 of the compression zone S is provided on both sides with spherically shaped thickenings 6, which are approximately circular segment-shaped in the exemplary embodiment shown.
  • the thickenings 6 are symmetrical to the radial axis R running through the pin axis. According to the illustration in FIG. 1, the thickenings extend essentially over the entire width of the web 2 and merge directly into the trumpet-shaped widenings 3 of the contact pin via a rounding 7.
  • the representation according to FIG. 2 shows that after the pressing in, the plastic material deformation only in the area of the compression zone S, which has been thickened accordingly.
  • the compression zone S has been deformed into an approximately spherical shape.
  • the two outer sections 4, which have been subjected to essentially no deformation have moved towards one another in the direction of the radial axis R, which has been brought about by a corresponding reduction in the width and corresponding thickening of the compression zone S.
  • the radial length that is the length perpendicular to the axis of the contact pin has been reduced by the length 1 1 of Fig. 1 to the length 1 2 of FIG. 2.
  • the two thickenings 6 do not extend over the entire length of the seat section 1, but are provided in sections or sections over the length of the seat section. Between the individual thickenings 6, which in turn are symmetrical to the radial axis R, there are thickening-free sections, as can be seen from section II-II in FIG. 3. These sections have a uniform web thickness. The web is shaped in a straight line, as can also be seen from section II-II of FIG. 3. The web thickness corresponds approximately to the smallest thickness of the thickenings 6.
  • the compression zone S does not merge into curves, but rather at an acute angle into conical widenings 3 to the outer sections 4.
  • four thickenings 6 are provided on each side of the contact pin, the two outer thickenings tapering towards the end of the seat section and, moreover, being longer than the two inner thickenings.

Landscapes

  • Multi-Conductor Connections (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Laminated Bodies (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
EP85100511A 1984-02-16 1985-01-18 Broche de connexion pour composants électroniques, particulièrement circuits imprimés Expired EP0152769B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85100511T ATE30813T1 (de) 1984-02-16 1985-01-18 Kontaktstift fuer elektronische bauteile, insbesondere leiterplatten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8404681U DE8404681U1 (de) 1984-02-16 1984-02-16 Kontaktstift für elektronische Bauteile, insbesondere Leiterplatten
DE8404681U 1984-02-16

Publications (3)

Publication Number Publication Date
EP0152769A2 true EP0152769A2 (fr) 1985-08-28
EP0152769A3 EP0152769A3 (en) 1985-10-02
EP0152769B1 EP0152769B1 (fr) 1987-11-11

Family

ID=6763634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85100511A Expired EP0152769B1 (fr) 1984-02-16 1985-01-18 Broche de connexion pour composants électroniques, particulièrement circuits imprimés

Country Status (3)

Country Link
EP (1) EP0152769B1 (fr)
AT (1) ATE30813T1 (fr)
DE (2) DE8404681U1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0132704A2 (fr) * 1983-07-23 1985-02-13 Guglhör, Magdalena Broche de contact électrique pour composants électroniques, en particulier cartes à circuits imprimés
US4857019A (en) * 1988-02-29 1989-08-15 Molex Incorporated Terminal pin with s-shaped complaint portion
EP0367660A2 (fr) * 1988-11-01 1990-05-09 Elfab Corporation Broche élastique de connecteur électrique
EP0372368A2 (fr) * 1988-12-02 1990-06-13 Siemens Aktiengesellschaft Elément de contact à presser dans des trous d'une carte imprimée
DE3909310A1 (de) * 1989-03-21 1990-09-27 Unimet Gmbh Kontaktstift
DE4002486A1 (de) * 1990-01-29 1991-08-08 Polytronic Kunststoff Elektro Kontaktelement mit einer einpresszone
US11152723B2 (en) 2017-08-18 2021-10-19 Robert Bosch Gmbh Contact pin for pressing into a printed circuit board and contact arrangement
DE102022129018A1 (de) 2022-11-03 2024-05-08 Turck Holding Gmbh Steckverbinder für eine Leiterplatte, Leiterplatte und Verfahren zu deren Herstellung
DE102022133352A1 (de) 2022-12-14 2024-06-20 ept Holding GmbH & Co. KG Einpressstift und Einpressverbindung

Families Citing this family (2)

* 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
DE102006048337B3 (de) * 2006-10-12 2008-02-14 Florian Geissler Metallischer Kontaktstift

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0005356A1 (fr) * 1978-04-27 1979-11-14 E.I. Du Pont De Nemours And Company Borne électrique et connecteur en bordure de carte comprenant une telle borne
EP0088582A1 (fr) * 1982-03-04 1983-09-14 E.I. Du Pont De Nemours And Company Bornes électriques fixées par pression

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0005356A1 (fr) * 1978-04-27 1979-11-14 E.I. Du Pont De Nemours And Company Borne électrique et connecteur en bordure de carte comprenant une telle borne
EP0088582A1 (fr) * 1982-03-04 1983-09-14 E.I. Du Pont De Nemours And Company Bornes électriques fixées par pression

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0132704A2 (fr) * 1983-07-23 1985-02-13 Guglhör, Magdalena Broche de contact électrique pour composants électroniques, en particulier cartes à circuits imprimés
EP0132704A3 (fr) * 1983-07-23 1988-04-20 Guglhör, Magdalena Broche de contact électrique pour composants électroniques, en particulier cartes à circuits imprimés
US4857019A (en) * 1988-02-29 1989-08-15 Molex Incorporated Terminal pin with s-shaped complaint portion
EP0367660A2 (fr) * 1988-11-01 1990-05-09 Elfab Corporation Broche élastique de connecteur électrique
EP0367660A3 (fr) * 1988-11-01 1990-12-12 Elfab Corporation Broche élastique de connecteur électrique
EP0372368A2 (fr) * 1988-12-02 1990-06-13 Siemens Aktiengesellschaft Elément de contact à presser dans des trous d'une carte imprimée
EP0372368A3 (en) * 1988-12-02 1990-12-12 Siemens Aktiengesellschaft Contact element to be pressed in the holes of a printed-circuit board
DE3909310A1 (de) * 1989-03-21 1990-09-27 Unimet Gmbh Kontaktstift
DE4002486A1 (de) * 1990-01-29 1991-08-08 Polytronic Kunststoff Elektro Kontaktelement mit einer einpresszone
US11152723B2 (en) 2017-08-18 2021-10-19 Robert Bosch Gmbh Contact pin for pressing into a printed circuit board and contact arrangement
DE102022129018A1 (de) 2022-11-03 2024-05-08 Turck Holding Gmbh Steckverbinder für eine Leiterplatte, Leiterplatte und Verfahren zu deren Herstellung
DE102022133352A1 (de) 2022-12-14 2024-06-20 ept Holding GmbH & Co. KG Einpressstift und Einpressverbindung

Also Published As

Publication number Publication date
EP0152769A3 (en) 1985-10-02
ATE30813T1 (de) 1987-11-15
DE8404681U1 (de) 1985-01-03
EP0152769B1 (fr) 1987-11-11
DE3560973D1 (en) 1987-12-17

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