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WO2003003527A1 - Connecteur de carte avec dispositif de protection de bornes - Google Patents

Connecteur de carte avec dispositif de protection de bornes Download PDF

Info

Publication number
WO2003003527A1
WO2003003527A1 PCT/US2002/019033 US0219033W WO03003527A1 WO 2003003527 A1 WO2003003527 A1 WO 2003003527A1 US 0219033 W US0219033 W US 0219033W WO 03003527 A1 WO03003527 A1 WO 03003527A1
Authority
WO
WIPO (PCT)
Prior art keywords
memory card
card
cavity
terminals
contact portions
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/US2002/019033
Other languages
English (en)
Other versions
WO2003003527B1 (fr
Inventor
Junichi Miyazawa
Shigeru Akiyama
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.)
Molex LLC
Original Assignee
Molex 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 Molex LLC filed Critical Molex LLC
Priority to US10/482,761 priority Critical patent/US6837749B2/en
Publication of WO2003003527A1 publication Critical patent/WO2003003527A1/fr
Publication of WO2003003527B1 publication Critical patent/WO2003003527B1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/02—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
    • G06K13/08—Feeding or discharging cards
    • G06K13/0806—Feeding or discharging cards using an arrangement for ejection of an inserted card
    • G06K13/0825—Feeding or discharging cards using an arrangement for ejection of an inserted card the ejection arrangement being of the push-push kind
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/02—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
    • G06K13/08—Feeding or discharging cards
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • 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
    • H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors
    • 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
    • H01R13/64—Means for preventing incorrect coupling

Definitions

  • This invention generally relates to the art of electrical connectors and, particularly, to a memory card connector.
  • the invention is specifically directed to a system of protecting the terminals of the card connector against incorrect or abnormal insertion of the memory card into the connector.
  • Memory cards are known in the art and contain intelligence in the form of a memory circuit or other electronic program. Some form of card reader reads the information or memory stored on the card. Such cards are used in many applications in today's electronic society, including video cameras, smartphones, music players, ATMs, cable television decoders, toys, games, PC adapters and other electronic applications.
  • a memory card includes a contact or terminal array for connection through a card connector to a card reader system and then to external equipment.
  • the connector readily accommodates insertion and removal of the card to provide quick access to the information and program on the card.
  • the card connector includes terminals for yieldingly engaging the contact array of the memory card. Ejecting devices often are provided for facilitating inserting and ejecting the memory card to and from the card connector.
  • Card connectors of this type are disclosed in Japanese Utility Model Application Laid- Open No. Hei. 1-75983, Japanese Utility Model Application Laid-Open No. Hei. 1-150387 and Japanese Patent Application Laid-Open No. Hei. 11-135192.
  • the contact or terminal array on the memory card typically is located along a front or leading edge of the card and on one side of the card, such as the bottom side of the card.
  • the contacts may be located in recessed areas along the bottom front edge of the card.
  • a correct or normal orientation of an inserted card has the contacts at the front bottom edge of the card. If the card is reversed in a backward or abnormal orientation, and the rear end of the card is inserted into the card connector, the terminals may be damaged or buckled because the rear end of the card is not provided with terminal recesses. Stop means may be provided on the connector housing to prevent such abnormal insertion of the memory card, but such stop means often can be overridden with excessive insertion forces.
  • the present invention is direction to solving these problems with a new and improved terminal protection system in such card connectors.
  • An object, therefore, of the invention is to provide a new and improved memory card connector with an improved terminal protection system.
  • the memory card connector includes a housing mounting a plurality of terminals having contact portions for engaging contacts on one side of a memory card.
  • a cover is mounted on the housing and defines a card-receiving cavity therebetween for receiving the memory card in a given, normal orientation.
  • Displacement means are provided on the housing for displacing the memory card toward the cover and away from the contact portions of the terminals if the memory card is inserted into the cavity in an abnormal orientation.
  • the displacement means is provided by at least one cam rib on the housing in the path of insertion of the memory card into the cavity.
  • the cam rib has an angled cam surface for engaging the memory card and biasing the card toward the cover away from the contact portions of the terminals.
  • the cover preferably is fabricated of metal material and includes a thin plate portion defining a top of the cavity against which the memory card is displaced. The thin plate portion of the cover is yieldable away from the contact portions of the terminals as the memory card is displaced thereagainst.
  • stop means are provided on the housing for engaging and stopping the memory card before the card engages the contact portions of the terminals if the memory card is inserted into the cavity in an abnormal orientation.
  • the stop means is provided by at least one stop rib on the housing in the path of insertion of the memory card into the cavity.
  • the stop rib has an abrupt stop surface for engaging and stopping the memory card.
  • the stop surface is located for engaging the memory card prior to the card engaging the displacement means when the card is inserted into the cavity in the abnormal orientation.
  • the displacement means thereby, provides redundant protection for the contact portions of the terminals.
  • the memory card has contacts disposed in recesses in the one side of the card.
  • the recesses open at the front or leading edge of the memory card. Therefore, the recessed contacts engage the contact portions of the terminals when the memory card is inserted into the cavity in the given, normal orientation of the card.
  • the rear edge of the memory card engages the displacement means when the card is inserted into the cavity in a reverse or abnormal orientation.
  • FIG. 1 is a top plan view of the housing of a card connector embodying the concepts of the invention, the cover having been removed from the housing to facilitate the illustration;
  • FIG. 2 is an enlarged elevational view of the card connector looking at the front or insertion end of the connector;
  • FIG. 3 is a view similar to that of FIG. 2, with a memory card being inserted into the connector and being shown as shaded in FIG. 3;
  • a card connector generally designated 10 (Fig. 2), which includes a housing, generally designated 12, and a cover, generally designated 14, which combine to define a card-receiving cavity 16 therebetween.
  • the housing may be molded of dielectric material such as plastic or the like.
  • the cover may be stamped and formed of sheet metal material or the like.
  • Housing 12 of connector 10 includes a bottom plate portion 12a, left and right sidewall portions 12b and 12c, respectively, and a terminal mounting portion 12d.
  • the housing has a plurality of mounting posts 12e for mounting connector 10 on a printed circuit board.
  • Cover 14 includes a thin, upper plate portion 14a and left and right sidewall portions 14b and 14c, respectively, overlying the left and right sidewall portions 12b and 12c, respectively, of the housing.
  • the upper plate portion therefore, is yieldable or flexible, for purposes described hereinafter.
  • An opening 14d is formed in upper plate portion 14a to increase the flexibility thereof.
  • a plurality of terminals 18 are mounted in mounting portion 12d of housing 12 and are spaced transversely of the insertion direction of a memory card, as best seen in FIG. 1.
  • the terminals have contact portions 18a which project upwardly from mounting portion 12d of the housing and into cavity 16 for engaging the contacts of the memory card as described hereinafter.
  • the terminals have tail portions 18b for connection, as by soldering, to appropriate circuit traces on the printed circuit board. As can be seen in FIG. 2, the tail portions are generally flush with the bottom of the connector and away from card-receiving cavity 16.
  • stop means are provided on housing 12 for engaging and stopping a memory card before the card engages contact portions 18a of terminals 18, in the event that the card is inserted into cavity 16 in an abnormal orientation described hereinafter.
  • the stop means is provided by a stop rib 20 having an abrupt stop surface 20a in the path of insertion of the memory card into the cavity for stopping the memory card if the card is inserted in an abnormal orientation.
  • displacement means are provided on housing 12 for displacing the memory card toward upper plate portion 14a of cover 14 and away from contact portions 18a of terminals 18 if the memory card is inserted into the cavity in an abnormal orientation described hereinafter.
  • the displacement means is provided by a displacement or cam rib 22 having an angled cam surface 22a in the path of insertion of the memory card if the card is inserted into the cavity in the abnormal orientation. Angled cam surface 22a is effective to displace or bias the abnormally oriented memory card upwardly toward upper plate portion 14a of the cover and away from contact portions 18a of terminals 18.
  • upper plate portion 14a of the cover is flexible or yieldable and, thereby, can move upwardly as the abnormally oriented memory card is biased or displaced thereagainst.
  • left and right sidewall portions 12b and 12c, respectively, of housing 12 are generally L-shaped to define bottom, inwardly directed flanges 24.
  • a memory card, generally designated 26, is shown shaded in FIG. 3. The side edges of the memory card are stepped, as at 28, to define side ribs 30.
  • This stepped configuration of the side edges of the memory card match the configurations of L-shaped sidewall portions 12b and 12c of the housing, so that the memory card can be inserted into cavity 16 of the connector in only one vertical orientation as shown by the shaded depiction in FIG. 3.
  • memory card 26 has a front or leading end or edge 32 and a rear end or edge 34 as the memory card is inserted into card connector 10 in a given, normal orientation as indicated by arrow "A".
  • the normal orientation of the card when inserted into the connector is with front or leading edge 32 inserted first into card- receiving cavity 16.
  • memory card 26 has a plurality of contacts 36 on the bottom or underside of the card for engaging contact portions 18a of terminals 18 of the card connector.
  • the terminals are disposed within recesses 38 in the bottom of the card, the recesses opening at leading edge 32 of the card.
  • the rear edge 34 of the card has no recesses and, in essence, forms a solid wall across the rear of the memory card.
  • the card connector is provided with an eject device, generally designated 38, as is provided on many memory card connectors.
  • the eject device includes a slider 40 having an angled surface 40a which engages an angled surface 42 (Fig. 4(a)) of the memory card whereby the slider and memory card move in unison into and out of the connector.
  • a coil spring 44 biases slider 40 backwardly to a preload position of the memory card.
  • the eject device may take various configurations including a "push-push" system which defines distinct forward or inserted and rearward or preload positions of the memory card. In operation, when memory card 26 is inserted in the direction of arrow "A" (Fig.
  • the memory card is being inserted in its given or normal orientation. That is, front or leading edge 32 of the card is inserted first into the connector. When fully inserted, contacts 36 of the card will engage contact portions 18a of terminals 18. Stop rib 20 and displacement rib 22 will not interfere with insertion of the memory card in this normal orientation because they will move into recesses 38. However, if the memory card is turned-around backwardly, whereby an attempt is made to insert rear edge 34 of the card into cavity 16 and toward contact portions 18a of terminals 18, the solid wall defined by rear edge 34 will prevent full insertion of the card. First, the solid wall defined by rear edge 34 will abut stop surface 20a of stop rib 20.
  • displacement rib 22 is effective alone or in and of itself to protect the contact portions of the terminals, in the specific embodiment shown herein, the displacement rib actually provides redundant protection (in addition to stop rib 20) for the contact portions of the terminals.
  • the displacement rib could be used in a connector without the stop rib.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention concerne un connecteur de carte mémoire comprenant un logement dans lequel sont montées plusieurs bornes comportant des portions de contact destinées à engager les contacts se trouvant d'un côté d'une carte mémoire. Un couvercle monté sur le logement, définit, entre les deux, un espace destiné à recevoir la carte mémoire dans une orientation donnée normale. Une nervure de déplacement, disposée sur le logement, permet de déplacer la carte mémoire vers le couvercle en l'éloignant des portions de contact des bornes si la carte mémoire est insérée dans l'espace avec une orientation anormale.
PCT/US2002/019033 2001-06-29 2002-06-14 Connecteur de carte avec dispositif de protection de bornes Ceased WO2003003527A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/482,761 US6837749B2 (en) 2001-06-29 2002-06-14 Card connector with terminal protection device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001/199350 2001-06-29
JP2001199350A JP4668467B2 (ja) 2001-06-29 2001-06-29 端子保護装置付きカードコネクタ

Publications (2)

Publication Number Publication Date
WO2003003527A1 true WO2003003527A1 (fr) 2003-01-09
WO2003003527B1 WO2003003527B1 (fr) 2003-10-02

Family

ID=19036652

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/019033 Ceased WO2003003527A1 (fr) 2001-06-29 2002-06-14 Connecteur de carte avec dispositif de protection de bornes

Country Status (3)

Country Link
JP (1) JP4668467B2 (fr)
TW (1) TWM249291U (fr)
WO (1) WO2003003527A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008151641A1 (fr) * 2007-06-11 2008-12-18 Nokia Corporation Connecteur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10240871A (ja) * 1997-03-03 1998-09-11 Hosiden Corp カードコネクタの誤挿入防止装置
JP2001135384A (ja) * 1999-11-05 2001-05-18 Yamaichi Electronics Co Ltd カードコネクタ
JP2001135417A (ja) * 1999-11-08 2001-05-18 Yamaichi Electronics Co Ltd カードコネクタ
JP2001135416A (ja) * 1999-11-05 2001-05-18 Yamaichi Electronics Co Ltd カードコネクタ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3385252B2 (ja) * 1999-12-06 2003-03-10 山一電機株式会社 カードコネクタ
JP3650881B2 (ja) * 2000-06-29 2005-05-25 モレックス インコーポレーテッド カード用コネクタ
JP4527887B2 (ja) * 2001-01-24 2010-08-18 京セラエルコ株式会社 カードコネクタの誤挿入防止装置
JP2002252046A (ja) * 2001-02-26 2002-09-06 Kel Corp カード用コネクタ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10240871A (ja) * 1997-03-03 1998-09-11 Hosiden Corp カードコネクタの誤挿入防止装置
JP2001135384A (ja) * 1999-11-05 2001-05-18 Yamaichi Electronics Co Ltd カードコネクタ
JP2001135416A (ja) * 1999-11-05 2001-05-18 Yamaichi Electronics Co Ltd カードコネクタ
JP2001135417A (ja) * 1999-11-08 2001-05-18 Yamaichi Electronics Co Ltd カードコネクタ

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 22 9 March 2001 (2001-03-09) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008151641A1 (fr) * 2007-06-11 2008-12-18 Nokia Corporation Connecteur
US8435048B2 (en) 2007-06-11 2013-05-07 Nokia Corporation Connector

Also Published As

Publication number Publication date
JP2003031314A (ja) 2003-01-31
WO2003003527B1 (fr) 2003-10-02
TWM249291U (en) 2004-11-01
JP4668467B2 (ja) 2011-04-13

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