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WO1998028823A1 - Ensemble connecteur pour carte a memoire - Google Patents

Ensemble connecteur pour carte a memoire Download PDF

Info

Publication number
WO1998028823A1
WO1998028823A1 PCT/US1997/022757 US9722757W WO9828823A1 WO 1998028823 A1 WO1998028823 A1 WO 1998028823A1 US 9722757 W US9722757 W US 9722757W WO 9828823 A1 WO9828823 A1 WO 9828823A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
pin
wall
passageways
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.)
Ceased
Application number
PCT/US1997/022757
Other languages
English (en)
Inventor
Dirk R. Dixon
Lou Castagna
Robert S. Correll, Jr.
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.)
Whitaker LLC
Original Assignee
Whitaker LLC
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 Whitaker LLC filed Critical Whitaker LLC
Priority to AU78762/98A priority Critical patent/AU7876298A/en
Publication of WO1998028823A1 publication Critical patent/WO1998028823A1/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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/05—Resilient pins or blades
    • 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
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • 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
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets

Definitions

  • This relates to the field of electrical connectors and more particularly to connectors for memory cards.
  • memory cards such as PCMCIA cards
  • Such cards contain a circuit board element with electronic components mounted thereon enclosed within a conductive shield, defining a compact, low height profile.
  • an electrical connector defining a mating face having an insulative plastic housing containing a low height array of closely spaced contacts that upon insertion of the memory card into a card reader, become electrically connected with corresponding contacts of a connector of the card reader, for transmission of data between the card and the computer.
  • the contacts are in a two-row array of sixty- eight positions, each with a pair of opposed leaf springs that receive therebetween a post of the mating connector.
  • Examples of memory cards are disclosed in U.S. Patents Nos. 5,472,349; 5,242,310 and 5,339,222; and a card reader with a mating connector is disclosed in U.S. Patents Nos. 5,288,247 and 5,290,174. It is desired to enhance the normal force between the mating contact pairs of the memory card connector and the mating connector.
  • the connector of the present invention is adapted to enhance the normal force between the female contacts of the memory card connector and the male contacts of the mating connector of the card reader.
  • a single leaf spring contact section is provided on each female contact, that urges the leading end portion of the corresponding pin contact of the mating connector to flex into a recess along the opposing passageway side wall .
  • FIGURES 1 and 2 are isometric assembled and exploded views of a memory card having a connector mounted at a leading edge thereof;
  • FIGURE 3 is an isometric view of the connector of FIGS. 1 and 2, with a contact exploded from the assembly face thereof;
  • FIGURES 4 and 5 are isometric and elevation views of a contact of a first embodiment of the invention having resilient retention members;
  • FIGURE 6 is a longitudinal section plan view of the housing with contacts disposed in passageways of a row thereof;
  • FIGURES 7 and 8 are enlarged cross-sectional views of the connector at a single passageway thereof with a contact of FIGS. 4 to 6 therein, before and after ultrasonic welding;
  • FIGURE 9 is a longitudinal section view of a pair of upper and lower passageways of the connector of FIG. 3 with a contact of FIGS. 4 to 8 in each, before ultrasonic welding;
  • FIGURE 10 is a longitudinal section view similar to FIG. 9 after ultrasonic welding, with the connector adapted to permit deflection in opposed directions of the pins of the mating connector upon mating.
  • FIGURES 1 and 2 are illustrative of a memory card assembly with which the present invention may be used.
  • Memory card assembly 10 includes a circuit card 12, shield covers 14 with plastic frame portions 16 integrally molded onto peripheral edge portions, and a PCMCIA connector 18 mounted at leading edge 20 of circuit card 12, and a modem adapter connector 22 at a trailing edge 24 for interconnection of a cable of peripheral equipment (not shown) .
  • Connector 18 includes a housing 26 of dielectric material having an array of passageways extending from a mating face to rearward or assembly face 28.
  • An array of contacts 30 are disposed in respective passageways and include contact sections exposed within passageway entrances along the mating face for electrical engagement with complementary contacts of a mating connector (see FIG. 10) of a card reader within the computer (not shown) , and solder tails 32 protruding for soldering to respective contact pads of circuit board 12.
  • FIG. 3 illustrates a connector 40 of the present invention particularly useful with a PCMCIA or memory card assembly, having a housing 42 of dielectric material and two rows of passageways 44 extending from mating face 46 to rear or assembly face 48.
  • Representative solder tails 50 of contacts 52 are seen extending rearwardly from assembly face 48 to be soldered to a circuit card of the memory card assembly.
  • contact 52 is a generally planar member with a single leaf spring defining its contact section 54.
  • Body section 56 is also a generally planar section having side edges 58 along which are formed preferably two pairs of rearwardly extending resilient retention sections 60,62 having inner sheared edges 64,66 and sheared transverse trailing edges 68,70 for a portion of the resilient retention sections to be bent arcuately to extend angled out of the plane of the body section preferably in a common direction and define engagement portions, while resulting in clearances in the body section thereunder.
  • the portions are adapted to be deflected in the opposite direction into the plane and into the clearances during insertion into a passageway of the housing upon engagement with an adjacent surface of the passageway wall .
  • the contact is stamped and formed of 0.005 inch stock such as of beryllium copper and the contacts of each row may be stamped and formed on carrier strips as is conventional, and loaded simultaneously into respective passageways 44 after which the carrier strips are removed.
  • FIG. 6 several contacts 52 are seen inserted into respective passageways 44 of a row of housing 42 of connector 40.
  • Side edges 58 of body sections 56 extend laterally outwardly into widened slots 72 of passageways 44, with the slots 72 just incrementally higher than the thickness of body sections 56.
  • Upwardly bent trailing edges 68,70 have been deflected into the plane of body section 56 following insertion into and along slots 72.
  • Forward end 74 of leaf spring contact section 54 is also widened with side edge portions 76 thereof also disposed in slots 72 to maintain its position during repeated mating cycles as leaf spring 54 is repeatedly deflected and resiles.
  • FIGS. 7 through 10 illustrate the effects of using the resilient retention sections of the contacts of the present invention in response to the application of energy, such as ultrasonic energy, to the connector during final stages of assembly of the memory card to join the opposed plastic cover portions to each other.
  • energy such as ultrasonic energy
  • FIGS. 7 and 9 the contact 52 has just been fully inserted into its respective passageway 44, with widened body section 56 extending laterally into low height slots 72 preferably of slightly less width resulting in the body section edges "plowing" through the plastic material of the slot side walls.
  • the upper and lower walls of the slots cause deflection of the resilient retention sections 60,62 at least partially into respective clearances in the plane of the body section 56, thereby storing energy into the retention sections that continues to exert a force concentrated on the upper slot wall 78, prior to application of energy E .
  • Memory card connector housing 40 includes an upper row of passageways 44a and a lower row of passageways 44b, wherein are disposed and retained respective contacts 52a, 52b.
  • Single leaf spring contact sections 54a, 54b extend along inner passageway wall surfaces 80a, 80b of a center barrier wall 82 of the housing, to leading ends 74a, 74b that preferably are constrained by widened side portions disposed in slot portions 72a, 72b of the passageways (see FIG. 6) .
  • recesses 84a, 84b are defined along outer passageway wall surfaces 86a, 86b opposed to leaf spring contact sections 52a, 52b.
  • a mating connector 100 includes an upper row of pin contacts 102 and a lower row of pin contacts 104.
  • leading end portions 106,108 of flexible pin contacts 102,104 engage leaf spring contact sections 54a, 54b and are flexed outwardly toward outer passageway wall surfaces 86a, 86b and into recesses 84a, 84b while the leaf spring contact sections are also deflected toward inner passageway wall surfaces 80a, 80b.
  • the pins of the upper and lower rows are deflected in opposite directions and cancel each other out so far as the connectors are concerned.
  • Pin contacts 102,104 are of the type having a thickness of about 0.017 inches.
  • the depth of recesses 84a, 84b is selected carefully so that outer wall surfaces 86a, 86b are engaged by deflected leading end portions 106,108 of pin contacts 102,104 prior to the extent of deflection becoming substantial, to assure that the pin contacts are not overstressed when mated.
  • the deflection of both contacts of a mated pair combine to give a more resilient system and allows a wide range of tolerance in deflection while maintaining sufficient normal force for a reliable electrical interface.
  • the contact retention system hereof may be used on connectors other than memory card connectors .

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

L'invention concerne un connecteur électrique (40) du type destiné à une carte à mémoire (10) comprenant un réseau de caniveaux (44) à l'intérieur desquels sont placés des contacts (52) respectifs. Chaque contact (52) comprend une seule section de contact (54) à ressorts à lames s'appariant avec une broche mâle (102, 104) d'un connecteur correspondant (100). Les caniveaux peuvent comporter des évidements (84a, 84b) permettant la flexion des broches mâles par le contact à ressorts à lames.
PCT/US1997/022757 1996-12-20 1997-12-12 Ensemble connecteur pour carte a memoire Ceased WO1998028823A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU78762/98A AU7876298A (en) 1996-12-20 1997-12-12 Memory card connector assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3377496P 1996-12-20 1996-12-20
US60/033,774 1996-12-20

Publications (1)

Publication Number Publication Date
WO1998028823A1 true WO1998028823A1 (fr) 1998-07-02

Family

ID=21872365

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/022757 Ceased WO1998028823A1 (fr) 1996-12-20 1997-12-12 Ensemble connecteur pour carte a memoire

Country Status (2)

Country Link
AU (1) AU7876298A (fr)
WO (1) WO1998028823A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111916929A (zh) * 2019-05-08 2020-11-10 泰连公司 具有存储卡的连接器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986002206A1 (fr) * 1984-09-28 1986-04-10 North American Specialties Corporation Connecteur electrique
US4691981A (en) * 1986-03-24 1987-09-08 Amp Incorporated Tab-form terminal
US4859198A (en) * 1988-08-25 1989-08-22 Gte Products Corporation Contact assembly
DE9107627U1 (de) * 1990-07-05 1991-08-14 Bach Gmbh + Co, 7100 Heilbronn Steckverbindung
US5472349A (en) * 1994-10-31 1995-12-05 The Whitaker Corporation Surface mountable board edge connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986002206A1 (fr) * 1984-09-28 1986-04-10 North American Specialties Corporation Connecteur electrique
US4691981A (en) * 1986-03-24 1987-09-08 Amp Incorporated Tab-form terminal
US4859198A (en) * 1988-08-25 1989-08-22 Gte Products Corporation Contact assembly
DE9107627U1 (de) * 1990-07-05 1991-08-14 Bach Gmbh + Co, 7100 Heilbronn Steckverbindung
US5472349A (en) * 1994-10-31 1995-12-05 The Whitaker Corporation Surface mountable board edge connector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111916929A (zh) * 2019-05-08 2020-11-10 泰连公司 具有存储卡的连接器
EP3736916A1 (fr) * 2019-05-08 2020-11-11 TE Connectivity Corporation Connecteur doté d'une carte mémoire
US11503730B2 (en) 2019-05-08 2022-11-15 Te Connectivity Solutions Gmbh Connector with memory card
CN111916929B (zh) * 2019-05-08 2024-08-09 泰连公司 具有存储卡的连接器

Also Published As

Publication number Publication date
AU7876298A (en) 1998-07-17

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