WO2002015342A2 - Connecteur electrique - Google Patents

Connecteur electrique Download PDF

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Publication number
WO2002015342A2
WO2002015342A2 PCT/US2001/021828 US0121828W WO0215342A2 WO 2002015342 A2 WO2002015342 A2 WO 2002015342A2 US 0121828 W US0121828 W US 0121828W WO 0215342 A2 WO0215342 A2 WO 0215342A2
Authority
WO
WIPO (PCT)
Prior art keywords
contact
electrical connector
spring arms
passageway
electrical
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/US2001/021828
Other languages
English (en)
Other versions
WO2002015342A3 (fr
Inventor
Albert N. Hopfer
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.)
Cinch Connectors Inc
Original Assignee
Cinch Connectors Inc
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 Cinch Connectors Inc filed Critical Cinch Connectors Inc
Priority to AU2001273354A priority Critical patent/AU2001273354A1/en
Publication of WO2002015342A2 publication Critical patent/WO2002015342A2/fr
Publication of WO2002015342A3 publication Critical patent/WO2002015342A3/fr
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
    • H01R12/50—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
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/02—Arrangements of circuit components or wiring on supporting structure
    • H05K7/10—Plug-in assemblages of components, e.g. IC sockets
    • H05K7/1053—Plug-in assemblages of components, e.g. IC sockets having interior leads
    • H05K7/1061—Plug-in assemblages of components, e.g. IC sockets having interior leads co-operating by abutting
    • H05K7/1069—Plug-in assemblages of components, e.g. IC sockets having interior leads co-operating by abutting with spring contact pieces
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted

Definitions

  • the present invention relates generally to electrical interconnection and, more particularly to an electrical contact and connector for establishing electrical interconnection between electrical components.
  • Interface devices for electronic coupling are available in a wide variety of different configurations.
  • One such interface device employs wadded conductor contacts retentively mounted in corresponding holes in an insulated board (see, e.g., U.S. Patent 4,581,679 and U.S. Patent 4,574,331). The ends of the wadded contacts are exposed and typically protrude beyond the respective surfaces of the insulated board.
  • Such a device typically provides direct coupling and physical separation between electronic circuits formed on adjacent electrical components, such as a circuit board and an integrated circuit package.
  • the contacts and connector In an application such as interconnecting an integrated circuit package with a circuit board, it is generally preferable that the contacts and connector have a very low profile in order to utilize space efficiently. Moreover, in order to reduce the total connection force for all of the contacts, it is desirable that the contacts deflect upon the application of relatively minimal force.
  • a general object of the present invention is to provide an electrical contact and connector 1 which provide reliable electrical and mechanical performance.
  • a further object of the present invention is to provide an electrical contact and connector which has a relatively low profile.
  • Another object of the present invention is to provide an electrical contact and connector which requires relatively minimal force to operate.
  • FIG. 1 is a perspective view of an illustrative electrical connector having at least one contact element according to the present invention.
  • FIG. 2 is a top plan view of the electrical connector of FIG. 1.
  • FIG. 3 is an enlarged partial plan view of the electrical connector of FIG. 1 showing one of the contact openings with an exemplary contact element inserted therein.
  • FIG. 4 is an enlarged partial side sectional view of the electrical connector of FIG. 1 with the contact element of FIG. 3 inserted into a contact opening and interconnecting an adjoining integrated circuit package and circuit board.
  • FIG. 5 is a perspective view of the contact element ' of FIG. 3.
  • FIG. 6 is a side elevation view of the contact element of FIG. 3.
  • FIG. 7 is a rear elevation view of the contact element of FIG. 3.
  • FIG. 8 is a front elevation view of the contact element of FIG. 3.
  • FIG. 9 is a plan view of the contact element of FIG. 3.
  • the electrical connector 20 is particularly adapted for connecting an integrated circuit package 24 to a circuit board 26.
  • the electrical connector 20 has, in this case, a plurality of contact elements 22 (one of which is shown in FIG. 4) that can be used to electrically interconnect a plurality of contact pads or lands 28 on a lower side of the integrated circuit package 24 with conductive traces 30 on the upper or mounting surface of the circuit board 26.
  • the illustrated electrical connector 20 generally comprises a dielectric housing 32 having a plurality of openings 34 for receiving the electrical contacts 22 as shown in FIGS. 2-4.
  • the contact openings 34 extend through the housing 32 from an upper surface 36 to an opposing, lower surface 38 thereof.
  • the upper surface 36 of the connector includes a socket receiving area, in this case defined by four positioning members 40 for receiving the integrated circuit package 24 (see, e.g., FIG. 1). Consequently, the connector 20 is configured so as to be mountable to a circuit board 26 with the lower surface 38 of the housing facing the upper surface of the circuit board 26. While the present invention is described in the context of providing electronic coupling between an integrated circuit package and a circuit board, it will be readily appreciated that the invention is equally applicable to electronic coupling between other types of electrical components.
  • each contact element 22 includes an upper and a lower spring arm 42, 44 as shown in FIGS. 4-6.
  • the upper and lower spring arms 42, 44 extend in cantilevered relation from respective upper and lower ends of a center portion 46.
  • the upper and lower spring arms 42, 44 diverge from each other as they extend outwardly from the center portion 46 towards apex portions 48, 50 at their respective free ends .
  • An inwardly extending finger 52, 54 is arranged at the free end of each of the spring arms 42, 44.
  • the fingers 52, 54 extend inwardly at different relative angles such that the free ends of the fingers engage each other in an overlapping relationship. This overlapping configuration of the fingers 52, 54 shortens the electrical path through the contact element .
  • the center portion 46 is contained entirely within the contact opening and the portions of the spring arms 42, 44 adjacent the apex portions 48, 50 protrude from either end of the contact opening as shown in FIG. 4.
  • the portions of the upper and lower spring arms 42, 44 which extend beyond the upper and lower surface 36, 38 of the housing 32 are available to mate with the corresponding electrical contacts of another electrical component.
  • the spring arms 42, 44 When the apex portions 48, 50 of the spring arms 42, 44 engage the mating contact surfaces on, in this instance, the integrated circuit package 24 and the circuit board 26, the spring arms 42, 44 deflect inwardly toward each other and produce a sliding or wiping motion between the overlapping fingers 52, 54. The contact element 22 thereby establishes an electrical connection between the integrated circuit package 24 and the circuit board 26.
  • the contact elements 22 can be either formed or stamped from any suitable material that will produce the desired spring action.
  • the configuration of the contact element 22 of the present invention is such that the spring arms 42, 44 will deflect upon the application of a relatively minimal force.
  • a raised protrusion or bump 56 can be arranged on the apex portion 48, 50 of each of the spring arms as shown in FIGS. 6 and 9.
  • the raised bump 56 can be arranged on each spring arm 42, 44 so as to provide the mating surface which engages the contact surface of, in this case, the trace 30 or contact pad 28 and establishes the electrical connection between the two components.
  • the raised bump 56 helps ensure that a reliable long-term electrical connection is established between the integrated circuit package 24 and the circuit board 26.
  • a concentration of the contact force can be achieved by forming a plurality of pin holes in the apex portions 48, the pin holes provide the concentration of the contact force .
  • the illustrated contact element includes a pair of retention members 58 which are adapted to engage corresponding retention slots 60 in the contact opening 34 in the housing as shown in FIGS. 3 and 4.
  • Each retention member 58 extends laterally away from a respective one of the opposing sides of the center portion 46 of the contact element 22.
  • each of the retention members 58 Prior to insertion into a contact opening 34, each of the retention members 58 has a generally C-shaped configuration that includes upper and lower beams 62, 64 that extend away from the center portion 46 in generally the same direction as the spring arms 42, 44 as shown in FIGS. 5 and 6.
  • the retention slots 60 in the illustrated connector housing 32 are provided in opposing side walls 66, 68 of the contact opening 34 and extend from, in this case, the upper surface 36 of the connector housing towards the lower surface 38 as shown in FIGS. 3-4.
  • the retention slots 60 do not extend completely through the housing 32 to the lower surface 38, but instead terminate at an end wall 70 which is spaced a distance above the lower surface of the housing 32. Accordingly, when viewed from the top of the housing 32 (FIG. 3) , the contact opening 34 has a generally T-shaped outline, while it has a generally rectangular outline when viewed from the bottom of the housing.
  • the length of the retention slots is less than the length of the upper and lower beams 62, 64 of the contact retention members.
  • the upper and lower beams 62, 64 deflect in the direction opposite of the insertion direction as shown in FIG. 4.
  • the contact element 22 is prevented from moving downward by the engagement of the lower beams 64 with the end walls 70 of the slots 60 and from moving upward by the engagement of deflected upper and lower beams 62, 64 with the side wall 72 of the retention slot.
  • the deflected upper and lower beams 62, 64 apply a spring force on, as well as dig into, the side wall 72 of the retention slot 60 so as to secure the contact element 22 within the opening 34.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

L'invention concerne un connecteur électrique (20) destiné à être connecté à un dispositif ou à un second connecteur. Le connecteur électrique (20) comprend un logement (32) et un contact (22) situé dans un passage (34) de contact dans le logement. Le contact (22) comprend une partie centrale (46) et des bras à ressort supérieur et inférieur (42, 44) s'étendant en porte-à-faux depuis la partie centrale (46). Un doigt (52, 54) s'étendant vers l'intérieur est situé à une extrémité libre de chacun des bras à ressort (42, 44). Le doigt (52) sur le bras à ressort supérieur (42) et le doigt (54) sur le bras à ressort inférieur (44) viennent en contact l'un avec l'autre dans des conditions de chevauchement de façon que lorsque les bras à ressort supérieur et inférieur (42, 44) fléchissent l'un vers l'autre vers l'intérieur, les doigts (52, 54) glissent l'un sur l'autre. Le passage (34) de contact comprend une rainure (60) de retenue et le contact (22) comprend un élément (58) de retenue qui, lors de l'insertion du contact (22) dans le passage (34) de contact, fléchit et vient en contact avec une paroi (72) de la rainure (60) de retenue de façon à retenir le contact (22) dans le passage (34) de contact.
PCT/US2001/021828 2000-08-16 2001-07-11 Connecteur electrique Ceased WO2002015342A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001273354A AU2001273354A1 (en) 2000-08-16 2001-07-11 Electrical connector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64034500A 2000-08-16 2000-08-16
US09/640,345 2000-08-16

Publications (2)

Publication Number Publication Date
WO2002015342A2 true WO2002015342A2 (fr) 2002-02-21
WO2002015342A3 WO2002015342A3 (fr) 2002-05-02

Family

ID=24567866

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/021828 Ceased WO2002015342A2 (fr) 2000-08-16 2001-07-11 Connecteur electrique

Country Status (2)

Country Link
AU (1) AU2001273354A1 (fr)
WO (1) WO2002015342A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6921270B2 (en) 2003-06-11 2005-07-26 Cinch Connectors, Inc. Electrical connector
US7455556B2 (en) 2003-06-11 2008-11-25 Cinch Connectors, Inc. Electrical contact
US7625216B2 (en) 2003-06-11 2009-12-01 Cinch Connectors, Inc. Electrical connector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB834139A (en) * 1957-03-15 1960-05-04 Walter Stanley Cator Improvements in electric multi-contact plug and socket couplings
US3720907A (en) * 1971-02-12 1973-03-13 Amp Inc Panel connector employing flag-type terminals and terminal extracting tool for the same
GB2030791B (en) * 1978-09-27 1982-09-15 Ferranti Ltd Electrical connector
US4647124A (en) * 1985-10-16 1987-03-03 Amp Incorporated Electrical connector for interconnecting arrays of conductive areas
US5653598A (en) * 1995-08-31 1997-08-05 The Whitaker Corporation Electrical contact with reduced self-inductance

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6921270B2 (en) 2003-06-11 2005-07-26 Cinch Connectors, Inc. Electrical connector
US7094066B2 (en) 2003-06-11 2006-08-22 Cinch Connectors, Inc. Electrical connector
US7261567B2 (en) 2003-06-11 2007-08-28 Cinch Connectors, Inc. Electrical connector
US7263770B2 (en) 2003-06-11 2007-09-04 Cinch Connectors, Inc. Electrical connector
US7455556B2 (en) 2003-06-11 2008-11-25 Cinch Connectors, Inc. Electrical contact
US7614883B2 (en) 2003-06-11 2009-11-10 Cinch Connectors, Inc. Electrical connector
US7625216B2 (en) 2003-06-11 2009-12-01 Cinch Connectors, Inc. Electrical connector

Also Published As

Publication number Publication date
AU2001273354A1 (en) 2002-02-25
WO2002015342A3 (fr) 2002-05-02

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