WO2004068391B1 - Memory card connector with improved terminals - Google Patents

Memory card connector with improved terminals

Info

Publication number
WO2004068391B1
WO2004068391B1 PCT/US2004/002943 US2004002943W WO2004068391B1 WO 2004068391 B1 WO2004068391 B1 WO 2004068391B1 US 2004002943 W US2004002943 W US 2004002943W WO 2004068391 B1 WO2004068391 B1 WO 2004068391B1
Authority
WO
WIPO (PCT)
Prior art keywords
card connector
longitudinal axis
spring arm
contact surface
face
Prior art date
Application number
PCT/US2004/002943
Other languages
French (fr)
Other versions
WO2004068391A1 (en
Inventor
Huang San-Shan
Zhao Lei
Sun Zhao You
Original Assignee
Molex Inc
Huang San-Shan
Zhao Lei
Sun Zhao You
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 Molex Inc, Huang San-Shan, Zhao Lei, Sun Zhao You filed Critical Molex Inc
Publication of WO2004068391A1 publication Critical patent/WO2004068391A1/en
Publication of WO2004068391B1 publication Critical patent/WO2004068391B1/en

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
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2464—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
    • G06K7/0021—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers for reading/sensing record carriers having surface contacts

Abstract

A memory card connector includes an insulative housing having a mating face and a circuit board mounting face (32) with at least one terminal-receiving passage (34) having an opening in the mating face of the housing. A terminal is received in the terminal-receiving passage and includes an elongated spring arm (42) cantilevered in the passage and defining a longitudinal axis of the arm. A dome-shaped contact portion (50) is located near a distal end of the cantilevered spring arm projecting through the opening in the mating face of the housing and defining an oval-shaped convex contact surface. The oval-shaped convex contact surface has an elliptical base at the spring arm and defines a major axis of the ellipse generally parallel to the longitudinal axis of the arm and a minor axis generally perpendicular to the longitudinal axis.

Claims

AMENDED CLAIMS[received by the International Bureau on 16 August 2004 (16.08.04); original claims 1-15 replaced by amended claims 1-9 (2 pages)]
1. A memoτy card connector (20), comprising: aniπsulativehousing (28) including amating £ιce (30) and adiruitboardmounting face (32) with at least oneteimmal-receivingpassage (34) having an opening (34a) infhematmg face of the bousing; and a terminal (40) received in said terminal-receiving passage and including an elongated spring arm (42) cantilevered inthepassage and defining alongftudinal
Figure imgf000003_0001
a dome-shaped contact portion (50) near a distal end of the cantilevered spring aim (42) projecting through the opening in the mating face of the housing and defining an oval- shaped convex contact surface (50), the oval-shaped convex contact surface (50) having an elliptical base (68) at the spring arm (42) and defining amaj or axis of the ellipse generally parallel to the longitudinal axis
(66) of the arm and a minor axis generally perpendicular to the longitudinal axis, and the oval-shaped convex contact surface (50) having a steep-sloped contact face
(50a) on a side thereof facing in a direction generally parallel to the longitudinal axis (66) of the elongated spring aim (42) and a gentle-sloped contact face (50b) on a side thereof facing in a direction generally perpendicular to the longitudinal axis (66) of the elongated spring arm (42).
2. The emory card connector Of claim 1 wherein said contact faces (50a,50b) arc generally triangularly-shaped with corners of the triangles coincident with an apex of th<_ι convex contact surface (50).
3. The memory card connector of claim 1, including a pair of said steep-sloped contactfaces (50a) at diametrically opposite sides ofthe oval-shaped convex contact surface (50) and facing in a direction generally parallel to the longitudinal axis (66) of he elongated spring aim (42).
4. Thememory card connector of claim 3, including apair of said gentle-sloped contact faces (50b) at diametrically opposite sides ofthe oval-shaped convex: contact surface (50) and facing in a direction generally perpendicular to the longitudinal axis (66) ofthe elongated spring arm (42).
5. The memory card connector of claim 4. including smooth transition face sections (50c) smoothly joining said steep-sloped contact faces (50a) and said gentle-sloped contact faces (50b).
6. Thememory card connector of claim 1 wherein s-ridteαriinal (40) is generally U-shaρedtodefineaj^stleg(42)joittedtoasecondleg(44)byaαuyedspringsecώon(46),the first leg forming said elongated spring arm, and the second leg being connected to the circuit board.
7. The memory card connector of claim 6 wherein said second leg (44) of he U- shaped terminal (40) includes amountingpost (54) securely fixedin amountinghole (36) in the insulative housing (28).
8. The memory card connector of claim 6 wherein said second leg (44) includes a contact foot (48) for connection to an appropriate circuit trace on the circuit board.
9. Theme oxy card connector of claim 1 , including complementatyinterengaging anti-overstress means (52,60) between the insulative housing (28) and the elongated spring arm
(42) at the distal end of he ami to limit the extent to which the dome-shaped contact portion (50) can project through the opening (34a) in the mating face (30) ofthe housing.
13
PCT/US2004/002943 2003-01-30 2004-01-30 Memory card connector with improved terminals WO2004068391A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU032022859U CN2645261Y (en) 2003-01-30 2003-01-30 Intelligent user identification module card connector and terminal
CN03202285.9 2003-01-30

Publications (2)

Publication Number Publication Date
WO2004068391A1 WO2004068391A1 (en) 2004-08-12
WO2004068391B1 true WO2004068391B1 (en) 2004-10-21

Family

ID=32778671

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/002943 WO2004068391A1 (en) 2003-01-30 2004-01-30 Memory card connector with improved terminals

Country Status (2)

Country Link
CN (1) CN2645261Y (en)
WO (1) WO2004068391A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2746605Y (en) * 2004-11-01 2005-12-14 上海莫仕连接器有限公司 Electrical connector
DE502005002999D1 (en) 2005-06-23 2008-04-10 Hopt & Schuler Ddm Card reader with symmetrical contact spring
DE502005004005D1 (en) * 2005-06-23 2008-06-19 Hopt & Schuler Ddm Card reader with double U-shaped contact springs
US7052290B1 (en) * 2005-08-10 2006-05-30 Sony Ericsson Mobile Communications Ab Low profile connector for electronic interface modules
US8061609B2 (en) * 2007-05-14 2011-11-22 Sony Ericsson Mobile Communications Ab Space efficient card readers and electronic devices incorporating same
CN101359789B (en) * 2007-08-02 2010-06-02 华硕电脑股份有限公司 Electronic apparatus and spring plate unit thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9407499U1 (en) * 1994-05-05 1995-09-07 Itt Composants Instr Electrical contact element
FR2809871B1 (en) * 2000-06-05 2002-07-19 Itt Mfg Entpr S Inc ELECTRICAL CONNECTOR WITH IMPROVED CONTACT BLADES FOR CONNECTION OF AN INTEGRATED CIRCUIT (S) CARD

Also Published As

Publication number Publication date
WO2004068391A1 (en) 2004-08-12
CN2645261Y (en) 2004-09-29

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