EP0139786A1 - Einpress-Steckverbinder sowie Isoliergehäuse und Kontakte für diesen - Google Patents

Einpress-Steckverbinder sowie Isoliergehäuse und Kontakte für diesen Download PDF

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Publication number
EP0139786A1
EP0139786A1 EP83112603A EP83112603A EP0139786A1 EP 0139786 A1 EP0139786 A1 EP 0139786A1 EP 83112603 A EP83112603 A EP 83112603A EP 83112603 A EP83112603 A EP 83112603A EP 0139786 A1 EP0139786 A1 EP 0139786A1
Authority
EP
European Patent Office
Prior art keywords
insulator
terminal
contact
connector
printed circuit
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
EP83112603A
Other languages
English (en)
French (fr)
Other versions
EP0139786B1 (de
Inventor
J. Preston Ammon
Jerry A. Kendall
John D. Martens
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.)
Elfab Corp
Original Assignee
Elfab Corp
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24074388&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0139786(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Elfab Corp filed Critical Elfab Corp
Publication of EP0139786A1 publication Critical patent/EP0139786A1/de
Application granted granted Critical
Publication of EP0139786B1 publication Critical patent/EP0139786B1/de
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
    • H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board

Definitions

  • This invention relates to connectors and more particularly to press fit connectors and terminals therefore for mounting into printed circuit boards.
  • Press fit connectors may utilize several methods of press fitting the contact terminals into a printed circuit board.
  • the terminal may be pressed into the printed circuit board and then the insulator or connector body positioned over the terminals.
  • the terminals are loaded into the insulator and then a tool presses on the tops of the terminals to press the terminals into the printed circuit board and secure the insulator.
  • the terminals are positioned in the insulator by inserting them into the insulator from the bottom side of the insulator and then using the insulator to press the terminals into the printed circuit board.
  • the large pressing area on the terminal should be achieved in a manner to permit the stamping of contact terminals with any desired spacing between the terminals, and the pressing areas should be made with the terminal using one stamping process.
  • the invention is to a connector insulator body that is used to press fit contact terminals into a printed circuit board.
  • the insulator is molded with a plurality of shoulders that are used to press against several extensions, protrusions or punched out tabs on the contact terminal.
  • An important feature of the invention is to provide sufficient shoulder area on the insulator and sufficient press points on the terminal to minimize the force required to press the terminal into the printed circuit board without damaging the insulator and/or terminal.
  • a card edge connector insulator 10 has a plurality of contact terminals 12 extending from the bottom thereof. These terminals are of the type that are press fitted into a printed circuit board (not illustrated). The insulator is used to press the terminals into the printed circuit board as hereinafter described.
  • the insulator 10 has two parallel side walls 11 that are connected by transverse walls, one part of which is represented by the numeral 19.
  • a slot 18 extends through the central part of the insulator and along its entire length. The slot 18 has two parallel side walls 15 and a plurality of equally spaced openings 17 in the side walls 15 that extend the length of the insulator.
  • Each side wall 11 has a beveled inside edge 16 for guiding a card into the connector, and the tops of the side walls have openings 14 which are the same in number and are aligned with the openings 17.
  • each of the openings (14, 17) houses or is identified with a single contact terminal.
  • the end walls 13 of the insulator are such that several connectors may be placed end-to-end to accommodate long printed circuit boards or the ends 13 may be adapted to receive end caps as described and claimed in copending application Serial No.
  • Figures 2a and 2b illustrate one embodiment of a contact terminal that may be used with the insulator of Figure 1 to provide a press fit connector.
  • Terminal 12 is made of several regions.
  • End 34 is a contact end which is pressed through a printed circuit board and may be soldered to or connected to by a wire wrap tool.
  • a compliant region 33 is the part of the terminal that is press fitted into the printed circuit board.
  • a compliant region is a part of the terminal that will deform upon being press fitted into a printed circuit board and retain the terminal in the circuit board without extreme deformation of the hole and the board surrounding the hole into which the terminal is press fitted.
  • Flat region 30 is designed to have a punched out tab 32.
  • Tab 32 has a flat surface 32a which is used to press the terminal into a printed circuit board.
  • the flat region 30 also has two flat topped shoulders 31 which are also used in press fitting the terminal into a printed circuit board. It is the combined areas 32a and 31 which provide a sufficiently large surface in order to press the terminal into a printed circuit board without damaging the insulator and/or terminal.
  • Terminal 12 has a curved spring end 35, terminating in end 35a, which is used to contact a card edge connector.
  • Figure 3 is a cross sectional view of the insulator of Figure 1 showing the terminal 12 in place.
  • the terminal is inserted from the bottom of the insulator so that the curved end 35 extends out opening 17.
  • End 35a is positioned behind inside part of inner wall 15 to hold the terminal in position.
  • the terminal is limited in its upward movement by a vertical rib 36.
  • Shoulder 31 of terminal 12 abutts against a bottom surface 36a of rib 36 to limit the upward movement of the terminal.
  • it is, in part, the pressing downwardly of surface 36a against shoulder 31 that press fits the terminal into a printed circuit board.
  • Side wall 11 has an offset region 37 with a flat top area 37a.
  • the area 37a is also used in press fitting a terminal into a printed circuit board.
  • the flat surface 37a presses downwardly against the flat area 32a of tab 32.
  • FIGs 4, 5 and 6 illustrate the various parts used in applying the downward force to press fit the terminal.
  • each terminal resides between two transverse walls 19.
  • Each wall 19 has a rib 36 with a pressing end 36a, providing two points of pressure on each side of the terminal, by pressing against the two shoulders 31. The third pressure point is against the tab surface 32a. This is best illustrated in Figure 3.
  • Figure 5 illustrates the cross sectional view of the insulator without the terminal in place.
  • Figure 6 is a partial bottom view of the insulator which illustrates the three pressing surfaces, the two 36a surfaces, one in each transverse walls, enclosing the terminal compartment, and one in the side wall of the insulator.
  • FIG. 7 Illustrated is a multicontact connector that may be press fitted into a printed circuit board.
  • the connector 20 has contact terminals 22 extending from the under side.
  • the insulator has a plurality of sleeves or compartments into each of which a single contact is placed.
  • the compartments are separated in the direction transverse to the length of the connector by walls 24 which extend from the top to the bottom of the insulator.
  • the compartments are separated along the length of the insulator by walls 24a which also extend from the top to the bottom of the connector.
  • Each compartment has a beveled lip around its top opening to guide a mating terminal into the compartment and into electrical connection with the terminal 22 therein.
  • Each insulator may be terminated at each end with a mounting platform 25 and may have a hole 25a therein through which a screw or rivet may be placed to secure the insulator to a printed circuit board.
  • Figure 7 illustrates a three row connector. However, there may be one or more rows, depending upon the number of desired contacts in the connector.
  • Figures 8a and 8b illustrate one embodiment of a contact terminal that may be used with the insulator of Figure 7.
  • the terminal is an elongated metal terminal with one end 46 suitable as either a solder terminal or a wire wrap terminal.
  • a compliant section 45 is press fitted into a printed circuit board to make contact with circuit patterns on the board and to hold the connector on the printed circuit board.
  • the terminal has a flat central region 42 which has two punched out tabs 43 and 44. These tabs have flat regions 43a and 44a, respectively, and are used in press fitting the terminal into a printed circuit board.
  • Figures 13a and 13b illustrate a second embodiment of a contact terminal.
  • the terminal is similar to the terminal of Figures 8a and 8b except that both ends 51 and 52 are straight pin contacts.
  • a compliant region 53 is adjacent to contact 52 and a flat region 54 is between compliant region 53 and contact 51.
  • the flat region has two press shoulders 55 and 56, and a punched out tab 57.
  • the end 58 of tab 57 is also used in press fitting the terminal into a printed circuit board using the connector insulator body.
  • Figures 14a and 14b illustrate another embodiment of a contact terminal.
  • the terminal has a straight pin contact 63 and a wishbone type contact 61, 62 on the other end.
  • compliant region 64 In the central part of the terminal is compliant region 64 and a flat region 65 including press shoulders 66 and 67 and press tab 68, 69.
  • Each of the terminals in Figures 8a, 8b, 17a, 13b, 14a, and 14c may be used in the insulator of the present invention and variations thereof.
  • Each terminal is a press fit terminal in respect of the fact that the insulator is used to press fit the terminal into a printed circuit board.
  • Figures 9 and 11 are cross sectional views of the insulator of Figure 7.
  • Figure 11 is the same as Figure 9 with the terminals removed.
  • the sleeves 23 are separated by walls 24.
  • Each wall 24 has two offset regions 47, 48 formed therein.
  • One offset region 47 is on one side of a wall and the other offset region 48 is on the other side.
  • tab 44 resides in offset region 48 and tab 43 resides in offset region 47.
  • a downward force is asserted on the top of the insulator.
  • Shoulder 47a presses downward on tab surface 43a and shoulder 48a presses downward on tab surface 44a thereby press fitting the terminals into the printed circuit board (not illustrated).
  • Figure 10 is a partial cross sectional view of the side of the insulator illustrated in Figure 7. It should be noted that sleeve 23 is tapered, being larger at the bottom and smaller at the top, and when terminal 20 is inserted into sleeve 23, the edge 50 of terminal 20 comes into frictional contact with the side walls of the sleeves. It is the frictional forces between the two that holds the terminal in the sleeve until the insulator and the contacts are press fitted into the printed circuit board.
  • Figure 12 is a partial bottom view of the insulator illustrating the location of the shoulders 47a and 48a which are used in the press fitting of the terminals 20.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
EP83112603A 1983-08-05 1983-12-15 Einpress-Steckverbinder sowie Isoliergehäuse und Kontakte für diesen Expired EP0139786B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52086983A 1983-08-05 1983-08-05
US520869 1983-08-05

Publications (2)

Publication Number Publication Date
EP0139786A1 true EP0139786A1 (de) 1985-05-08
EP0139786B1 EP0139786B1 (de) 1988-05-11

Family

ID=24074388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112603A Expired EP0139786B1 (de) 1983-08-05 1983-12-15 Einpress-Steckverbinder sowie Isoliergehäuse und Kontakte für diesen

Country Status (3)

Country Link
EP (1) EP0139786B1 (de)
JP (1) JPS6044983A (de)
DE (1) DE3376604D1 (de)

Cited By (5)

* 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
EP0140473B1 (de) * 1983-08-12 1987-10-28 Molex Incorporated Lötfreier elektrischer Leiter für gedruckte Schaltungen und Steckvorrichtung, die diesen verwendet
EP0271357A2 (de) * 1986-12-12 1988-06-15 Nec Corporation Steckverbinder mit Einpressstift
WO1996028866A1 (en) * 1995-03-14 1996-09-19 The Whitaker Corporation Electrical receptacle assembly and spring contact therefor
WO2009117309A1 (en) * 2008-03-18 2009-09-24 Osram Sylvania, Inc. Connector header with wire wrap pins

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2255748A1 (de) * 1971-11-17 1973-05-24 Itt Ind Gmbh Deutsche Steckverbinder
US4127935A (en) * 1976-02-20 1978-12-05 Elfab Corporation Method for assembly of electrical connectors
US4220393A (en) * 1977-02-22 1980-09-02 Elfab Corporation Electrical connector and method of fabrication and assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2255748A1 (de) * 1971-11-17 1973-05-24 Itt Ind Gmbh Deutsche Steckverbinder
US4127935A (en) * 1976-02-20 1978-12-05 Elfab Corporation Method for assembly of electrical connectors
US4220393A (en) * 1977-02-22 1980-09-02 Elfab Corporation Electrical connector and method of fabrication and assembly

Cited By (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
EP0140473B1 (de) * 1983-08-12 1987-10-28 Molex Incorporated Lötfreier elektrischer Leiter für gedruckte Schaltungen und Steckvorrichtung, die diesen verwendet
EP0271357A2 (de) * 1986-12-12 1988-06-15 Nec Corporation Steckverbinder mit Einpressstift
EP0271357A3 (de) * 1986-12-12 1989-02-22 Nec Corporation Steckverbinder mit Einpressstift
WO1996028866A1 (en) * 1995-03-14 1996-09-19 The Whitaker Corporation Electrical receptacle assembly and spring contact therefor
US5588878A (en) * 1995-03-14 1996-12-31 The Whitaker Corporation Electrical receptacle assembly and spring contact therefor
WO2009117309A1 (en) * 2008-03-18 2009-09-24 Osram Sylvania, Inc. Connector header with wire wrap pins

Also Published As

Publication number Publication date
EP0139786B1 (de) 1988-05-11
JPS6044983A (ja) 1985-03-11
DE3376604D1 (en) 1988-06-16

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