WO1997002631A1 - Electrical connectors - Google Patents

Electrical connectors Download PDF

Info

Publication number
WO1997002631A1
WO1997002631A1 PCT/GB1996/001534 GB9601534W WO9702631A1 WO 1997002631 A1 WO1997002631 A1 WO 1997002631A1 GB 9601534 W GB9601534 W GB 9601534W WO 9702631 A1 WO9702631 A1 WO 9702631A1
Authority
WO
WIPO (PCT)
Prior art keywords
boards
board
contact
electrical connector
electrically
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.)
Ceased
Application number
PCT/GB1996/001534
Other languages
French (fr)
Inventor
Peter George Bishop
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.)
AVX Ltd
Original Assignee
AVX Ltd
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 AVX Ltd filed Critical AVX Ltd
Priority to US08/973,765 priority Critical patent/US5967800A/en
Priority to GB9724839A priority patent/GB2316554B/en
Priority to EP96920981A priority patent/EP0838101B1/en
Priority to JP9504906A priority patent/JPH11509670A/en
Priority to DE69611914T priority patent/DE69611914D1/en
Publication of WO1997002631A1 publication Critical patent/WO1997002631A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01R12/70—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
    • 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
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/714—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit

Definitions

  • the present invention relates to electrical connectors and more particularly to electrical connectors used to interconnect electronic assemblies such as, for example, printed circuit boards, which are required to be mounted one adjacent another, often, but not necessarily, in a vertically-arranged stack.
  • electronic assemblies such as, for example, printed circuit boards, which are required to be mounted one adjacent another, often, but not necessarily, in a vertically-arranged stack.
  • Such electronic assemblies will be referred to herein as "boards”.
  • electrical connection means for interconnecting two physically adjacent boards comprises an electrically insulating body which mounts one or more electrically conducting elements, each such conducting element having a first portion adapted to electrically contact an electrically conducting part of one board, and a second portion adapted to contact an electrically conducting part of an adjacent board, to provide electrical connection therebetween.
  • One of said portions may be adapted to be physically attached to the electrically conducting part of its respective board, and the other of said portions to form a pressure contact with the electrically conducting part of the other board.
  • the body of the connector may be physically attached to, or located upon, one or other of the two boards and pressure contact made by both portions of the connector element to the respective conducting parts of the two boards.
  • the insulating body of the connector may lie between the boards to be interconnected, and connection may be made between contacts carried respectively by the opposed faces of the two boards.
  • the boards to be interconnected may lie one upon the other, and connection may be made between contacts carried respectively upon the upper faces of the two boards.
  • a series of boards may be interconnected in stack without the need for an external mechanical framework or associated interconnections.
  • connectors in accordance with the invention provide a more ready and less expensive means of interconnecting adjacent boards one to another, and of creating an interconnected stack of a series of such boards.
  • Figure 4 is a transverse section through the connector of Figures 1 , 2 and 3, taken along the line A-A. looking in the direction of the arrows;
  • FIG. 5 is a transverse section of another form of connector in accordance with the invention.
  • Figures 6 & 7 are views of the connector of Figure 5 from one side and below respectively, on a different scale.
  • Figure 8 is a further transverse view of the connector of Figure 5 assembled with, and interconnecting two boards.
  • the first electrical connector comprises a body 10 of electrically insulating material in the form of a plastics moulding, whose opposed longitudinal faces 12 and 14 are each provided with a series of opposed recesses, such as 16 and 18 respectively (see Figure ⁇ 1, in which identical contact elements such as 20 and 22 are mounted.
  • the body 10 may typically be moulded of STANYL (TM) high temperature resistant nylon 46, and the contact elements 20 formed of beryllium-copper strip material 0.1mm thick.
  • Each contact element is shaped to provide a head 24 in the form of an inverted letter V at the upper extremity of the contact element and a Hat foot 26 at the lower extremity.
  • Head 24 which is intended to make pressure contact with a contact pad upon one printed circuit board.
  • Each contact element 20 is shaped and mounted to permit head 24 to flex outwardly and downwardly upon stem 34. about turnover 36. when assembled with an upper printed circuit board, the lower face of which will lie in contact with the upper face 32 of moulding 10, when the upper board is pressed into contact with the connector.
  • a series of contact elements 50 are mounted within recesses 52 arranged in two opposed rows 54 and 56, one on each side of a body moulding 58 of electrically insulating material.
  • Each contact element 50 comprises a generally V-shaped portion, one limb 60 of which lies in contact with the upper face of the recess 52. and the other 62 partly projects through the aperture slot 64 in the lower face of recess 52.
  • the end-portion of limb 60 is continued and stepped to provide a foot 66, intended to be surface mounted upon a complementary contact carried by one of the two boards to be interconnected, and the end po ⁇ ion 68 of limb 62 is bent upwardly toward the recess 52. to provide a sprung contact face 69 to engage a complementary contact carried by the other of the two boards to be interconnected.
  • Figure 8 shows the same connector assembled with a pair of boards 70 and 72, with appropriately positioned contact pads 74 and 76 respectively, on the upper surface of each, to permit interconnection by means of the contact elements 50.
  • each contact element 50 projects through aperture 64, and allows contact faces o l ) to contact pads 76 upon the upper face of board 72.
  • the lower part of connector body 58 projecting through an appropriately dimensioned aperture in the upper board 70. to mechanically contact the upper face of lower board " 2.
  • the connector described in relation to Figures 5 to 8 of the drawings will normally be carried upon the upper board 70 by virtue of the contact feet 66 being surface mounted by solder attachment to contact pads 74, and, upon assembly of the two boards 70 and 72. contact faces M will engage pads 76 upon the lower board 72.
  • the complete assembly may be held together by appropriately mounting board 70 to board 72, for example by interengaging pegs and apertures, or otherwise.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

An electrical connector for connecting two adjacent boards (eg. printed circuit boards) comprising an electrically insulating body(10; 58) on which are mounted conducting elements (20, 22; 50). Each element has a first portion (24; 69) for electrically contacting a part of one board, and a second portion (26; 74) for contacting a part of the adjacent board, so as to provide electrical connection therebetween. The insulating body (10) may lie between the boards to be interconnected.

Description

Title: ELECTRICAL CONNECTORS
Field of Invention
The present invention relates to electrical connectors and more particularly to electrical connectors used to interconnect electronic assemblies such as, for example, printed circuit boards, which are required to be mounted one adjacent another, often, but not necessarily, in a vertically-arranged stack. Such electronic assemblies will be referred to herein as "boards".
Background to the Invention
Apart from hard wiring the boards one to another, prior art methods of interconnecting the boards include the use of edge connectors carried by the boards which engage with complementary fixed connectors carried within a frame mounting the boards, interconnection being required between the complementary fixed connectors to provide the necessary connections from one board to another.
Such systems are inconvenient and costly, requiring numerous individual component parts, and the assembly of those parts into an interconnection system. In addition, removal or replacement of individual boards of an assembly is likely to difficult and thus introduce further cost in service and maintenance.
It is an object of the present invention to provide an improved means of interconnecting boards as herein defined.
Summary of the Invention
According to the present invention electrical connection means for interconnecting two physically adjacent boards, as herein defined. comprises an electrically insulating body which mounts one or more electrically conducting elements, each such conducting element having a first portion adapted to electrically contact an electrically conducting part of one board, and a second portion adapted to contact an electrically conducting part of an adjacent board, to provide electrical connection therebetween.
One of said portions may be adapted to be physically attached to the electrically conducting part of its respective board, and the other of said portions to form a pressure contact with the electrically conducting part of the other board.
Alternatively the body of the connector may be physically attached to, or located upon, one or other of the two boards and pressure contact made by both portions of the connector element to the respective conducting parts of the two boards.
In one form of connector in accordance with the invention, the insulating body of the connector may lie between the boards to be interconnected, and connection may be made between contacts carried respectively by the opposed faces of the two boards.
In a further form, the boards to be interconnected may lie one upon the other, and connection may be made between contacts carried respectively upon the upper faces of the two boards.
Employing a series of connectors in accordance with the invention, a series of boards may be interconnected in stack without the need for an external mechanical framework or associated interconnections.
It will be apparent that connectors in accordance with the invention provide a more ready and less expensive means of interconnecting adjacent boards one to another, and of creating an interconnected stack of a series of such boards.
Brief description of drawings:
In order that features and advantages of the present invention may be further appreciated, two embodiments thereof will be described, by way of example, with reference to the accompanying drawings of which: Figure 1 , 2 and 3 how respectively views from the top, side and below of an electrical connector in accordance with the invention:
Figure 4 is a transverse section through the connector of Figures 1 , 2 and 3, taken along the line A-A. looking in the direction of the arrows;
Figure 5 is a transverse section of another form of connector in accordance with the invention;
Figures 6 & 7 are views of the connector of Figure 5 from one side and below respectively, on a different scale; and
Figure 8 is a further transverse view of the connector of Figure 5 assembled with, and interconnecting two boards.
Detailed description of embodiments
Referring to Figures 1 to , the first electrical connector comprises a body 10 of electrically insulating material in the form of a plastics moulding, whose opposed longitudinal faces 12 and 14 are each provided with a series of opposed recesses, such as 16 and 18 respectively (see Figure ^1, in which identical contact elements such as 20 and 22 are mounted.
The body 10 may typically be moulded of STANYL (TM) high temperature resistant nylon 46, and the contact elements 20 formed of beryllium-copper strip material 0.1mm thick.
Each contact element is shaped to provide a head 24 in the form of an inverted letter V at the upper extremity of the contact element and a Hat foot 26 at the lower extremity.
Head 24. which is intended to make pressure contact with a contact pad upon one printed circuit board. Ls gold plated to optimise lectrical contact between contact element 20 and the respective contact pad, carried upon the board to be mounted adjacent the upper face 32 of bodv T.V Foot 26, which is intended to be surface mounted by soldering to a contact pad upon the other printed circuit board, is tinned with a tin-lead alloy to permit ready attachment thereto.
Each contact element 20 is shaped and mounted to permit head 24 to flex outwardly and downwardly upon stem 34. about turnover 36. when assembled with an upper printed circuit board, the lower face of which will lie in contact with the upper face 32 of moulding 10, when the upper board is pressed into contact with the connector.
Referring now to the further connector shown in Figures 5 to 8 of the drawings, a series of contact elements 50, are mounted within recesses 52 arranged in two opposed rows 54 and 56, one on each side of a body moulding 58 of electrically insulating material.
Each contact element 50 comprises a generally V-shaped portion, one limb 60 of which lies in contact with the upper face of the recess 52. and the other 62 partly projects through the aperture slot 64 in the lower face of recess 52.
The end-portion of limb 60 is continued and stepped to provide a foot 66, intended to be surface mounted upon a complementary contact carried by one of the two boards to be interconnected, and the end poπion 68 of limb 62 is bent upwardly toward the recess 52. to provide a sprung contact face 69 to engage a complementary contact carried by the other of the two boards to be interconnected.
Figure 8 shows the same connector assembled with a pair of boards 70 and 72, with appropriately positioned contact pads 74 and 76 respectively, on the upper surface of each, to permit interconnection by means of the contact elements 50.
The end portion 68 of each contact element 50 projects through aperture 64, and allows contact faces ol) to contact pads 76 upon the upper face of board 72. the lower part of connector body 58 projecting through an appropriately dimensioned aperture in the upper board 70. to mechanically contact the upper face of lower board "2. It will be appreciated that the connector described in relation to Figures 5 to 8 of the drawings will normally be carried upon the upper board 70 by virtue of the contact feet 66 being surface mounted by solder attachment to contact pads 74, and, upon assembly of the two boards 70 and 72. contact faces M will engage pads 76 upon the lower board 72. The complete assembly may be held together by appropriately mounting board 70 to board 72, for example by interengaging pegs and apertures, or otherwise.

Claims

1. An electrical connector for interconnecting two physically adjacent boards, as herein defined, comprising an electrically insulating body which mounts one or more electrically conducting elements, each such conducting element having a first portion adapted to electrically contact an electrically conducting part of one board, and a second portion adapted to contact an electrically conducting part of an adjacent board, to provide electrical connection therebetween.
2. An electrical connector according to claim 1 in which one portion is adapted to be physically attached to the electrically conducting part of its respective board, and the other of said poπions to form a pressure contact with the electrically conducting part of the other board.
3. An electrical connector according to claim 1 in which the body of the connector is physically attached to or located upon one or other of the two boards, and in which pressure contact is made by both portions of the connector element to the respective conducting parts of the two boards.
4. An electrical connector according to any one preceding claim in which the insulating body of the connector lies between the boards to be interconnected, and connection is made between contacts carried respectively by the opposed faces of the two boards.
5. An electrical connector according to any one of claims 1 to 3 in which the boards to be interconnected lie one upon the other. and connection is made between contacts carried respectively upon the upper faces of the two boards.
6. An electrical connector for interconnecting two physically adjacent boards substantially as herein described with reference to. and as shown in. Figures 1 to 7 of the accompanying drawings.
PCT/GB1996/001534 1995-07-04 1996-06-26 Electrical connectors Ceased WO1997002631A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US08/973,765 US5967800A (en) 1995-07-04 1996-06-26 Electrical connectors
GB9724839A GB2316554B (en) 1995-07-04 1996-06-26 Electrical connectors
EP96920981A EP0838101B1 (en) 1995-07-04 1996-06-26 Electrical connectors
JP9504906A JPH11509670A (en) 1995-07-04 1996-06-26 Electrical connector
DE69611914T DE69611914D1 (en) 1995-07-04 1996-06-26 ELECTRIC CONNECTORS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9513540.6A GB9513540D0 (en) 1995-07-04 1995-07-04 Electrical connectors
GB9513540.6 1995-07-04

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/376,251 Continuation US6386889B1 (en) 1995-07-04 1999-08-18 Board-to-board electrical connectors

Publications (1)

Publication Number Publication Date
WO1997002631A1 true WO1997002631A1 (en) 1997-01-23

Family

ID=10777061

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1996/001534 Ceased WO1997002631A1 (en) 1995-07-04 1996-06-26 Electrical connectors

Country Status (6)

Country Link
US (2) US5967800A (en)
EP (2) EP0838101B1 (en)
JP (1) JPH11509670A (en)
DE (2) DE69611914D1 (en)
GB (1) GB9513540D0 (en)
WO (1) WO1997002631A1 (en)

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US8547699B1 (en) 2010-11-09 2013-10-01 Adtran, Inc. Enclosure for outside plant equipment with interconnect for mating printed circuit boards, printed circuit board device and method of repairing outside plant equipment
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US7306494B2 (en) 2003-08-01 2007-12-11 Fci Connector
US7766668B1 (en) 2009-02-11 2010-08-03 Avx Corporation Low profile electrical conductor assembly for interconnecting conductive components in a stacked configuration
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Also Published As

Publication number Publication date
US6386889B1 (en) 2002-05-14
US5967800A (en) 1999-10-19
JPH11509670A (en) 1999-08-24
EP1058352B1 (en) 2004-03-24
GB9513540D0 (en) 1995-09-06
DE69631980D1 (en) 2004-04-29
EP0838101A1 (en) 1998-04-29
DE69611914D1 (en) 2001-04-05
EP0838101B1 (en) 2001-02-28
DE69631980T2 (en) 2004-08-12
EP1058352A1 (en) 2000-12-06

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