JP3998472B2 - Card connector device - Google Patents

Card connector device Download PDF

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Publication number
JP3998472B2
JP3998472B2 JP2001401697A JP2001401697A JP3998472B2 JP 3998472 B2 JP3998472 B2 JP 3998472B2 JP 2001401697 A JP2001401697 A JP 2001401697A JP 2001401697 A JP2001401697 A JP 2001401697A JP 3998472 B2 JP3998472 B2 JP 3998472B2
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JP
Japan
Prior art keywords
card
cover
contact portion
static electricity
ground
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Expired - Fee Related
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JP2001401697A
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Japanese (ja)
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JP2003249314A (en
Inventor
徹 西岡
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Alps Alpine Co Ltd
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Alps Electric Co Ltd
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Publication date
Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP2001401697A priority Critical patent/JP3998472B2/en
Priority to TW91133718A priority patent/TW574773B/en
Priority to KR10-2002-0076616A priority patent/KR100515171B1/en
Priority to CNB021575312A priority patent/CN1225819C/en
Publication of JP2003249314A publication Critical patent/JP2003249314A/en
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Publication of JP3998472B2 publication Critical patent/JP3998472B2/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/6485Electrostatic discharge protection
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0013Methods 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
    • G06K7/0056Methods 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 housing of the card connector
    • G06K7/0082Methods 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 housing of the card connector comprising an arrangement for protection against electrostatic discharge, e.g. by grounding part of the conductive housing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural 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
    • H01R12/70Coupling devices
    • H01R12/7094Coupling devices with switch operated by engagement of PCB
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/70Structural association with built-in electrical component with built-in switch
    • H01R13/703Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H01R13/7031Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity

Description

【0001】
【発明の属する技術分野】
本発明は、メモリを構成するIC等が内装されたカードを装着するカード用コネクタ装置に関する。
【0002】
【従来の技術】
一般的に、小型メモリカードが装着されるカード用コネクタ装置には、図13に示すように、樹脂製のハウジング1が設けられ、そのハウジング1には、メモリカード2が挿入されるカード挿入部3と、カード挿入部3に挿入されたメモリカード2の各接触部4と接触する複数の端子5が並設されている。また、ハウジング1にはカード挿入部3を覆う金属製のカバー6が設けられており、そのカバー6の一部が回路基板7のグランドパターンに半田付けされている。
【0003】
【発明が解決しようとする課題】
ところで、カード挿入部に挿入するメモリカードが静電気に帯電或いはカードを挿入する操作者が静電気に帯電していると、メモリカードを挿入する際、あるいは挿入途中においてカードの接触部からカバーに静電気の放電が起きる場合がある。しかし、従来の構成では、各接触部からカバーまでのそれぞれの最短距離が同じであるためどの接触部からカバーに放電が起きるかわからず、グランド用の接触部から放電が起きた場合にはメモリカード内の回路に影響を及ぼすことはないが、信号用の接触部から放電が起きるとメモリカード内の回路の信号ラインに数千〜万ボルトの電圧が発生しカード内のIC或いはメモリに記録されたデータ等が破壊されてしまう虞があった。
【0004】
本発明は、上記事情に鑑みてなされたもので、その目的は、金属製のカバーを備えたものにおいて、静電気に帯電したカードを挿入する際にカード内の回路等が破壊されてしまうことを防止できるカード用コネクタ装置を提供するところにある。
【0005】
【課題を解決するための手段】
上記目的を達成するために、請求項1のカード用コネクタ装置は、カードが挿入されるカード挿入部とカード挿入部に挿入されたカードの各接触部とそれぞれ接触する複数の接続端子とを備えたカード用コネクタ装置において、カード挿入部を覆いかつ回路のグランドに接続される金属製のカバーが設けられるとともに、各接触部は、グランド用接触部と信号用接触部とを有し、各接触部はカードの挿入方向とは直交する方向に並設され、その並設された各接触部のうちの両端側に位置する接触部がグランド用接触部であって、複数の接続端子は、信号用端子と、その両端側に位置するグランド用端子とを有し、金属製のカバーには、カード挿入部に挿入されるカードの信号用接触部からカバーまでの最短距離を、グランド用接触部からカバーまでの最短距離より長くする静電気対策手段が設けられ、静電気対策手段はカードをカード挿入部に挿入しグランド用接触部がグランド用端子と接触し始める位置までカード挿入部の奥方へ延びていることを特徴とする。
【0006】
請求項2のカード用コネクタ装置は、静電気対策手段は、カバーの上面部において少なくともカードの挿入途中における両グランド用接触部間と対向する領域を上方へ膨出する膨出部により構成され、膨出部の両側の外方縁部は、グランド用接触部の外側縁部をカバーに向かって延ばした線上とほぼ同じ位置または僅かに外方に位置することを特徴とする。
【0007】
請求項3のカード用コネクタ装置は、静電気対策手段は、カバーの上面部に両グランド用接触部に対応して内方へ突出する突出部を設けてカバーと両グランド用接触部との最短距離を短くする突条部により構成され、突条部の内側の縁部は、グランド用接触部の外側縁部をカバーに向かって延ばした線上とほぼ同じ位置または僅かに外方に位置することを特徴とする。
【0008】
請求項4のカード用コネクタ装置は、第2の静電気対策手段を形成し第2の静電気対策手段は、挿入開始状態にあるカードの両グランド用接触部間と対向するカバーの挿入口側縁部を切り欠いて形成されることを特徴とする。
【0009】
【発明の作用及び効果】
請求項1の発明によれば、カバーに静電気対策手段を設け、カードの信号用接触部からカバーまでの最短距離を、グランド用接触部からカバーまでの最短距離より長くしたので、カードが静電気に帯電していても、静電気は常にグランド用接触部からカバーに放電される。従って、静電気が放電される際にカード内の回路の信号ラインに高電圧が発生することがなく、カード内の回路等の破壊を防止できる。
【0010】
請求項2の発明によれば、挿入途中におけるカードの両端側に位置する両グランド用接触部間と対向するカバーの上面部を上方へ膨出させたので、カードに帯電した静電気は、挿入途中において常にグランド用接触部からカバーに放電される。従って、挿入途中において、カードの信号用接触部からカバーに静電気が放電されることはなく、カード内の回路等の破壊を防止できる。
【0011】
請求項3の発明によれば、カードの両端側に位置する両グランド用接触部に対応してカバーに突出部を設け、カバーとグランド用接触部との最短距離を短くしたので、カードを挿入する際、カードが静電気に帯電していても静電気は常にグランド用接触部からカバーに放電される。従って、静電気が放電される際に、カード内の回路の信号ラインに高電圧が発生することはなく、カード内の回路等の破壊を防止できる。
【0012】
請求項4の発明によれば、挿入開始状態にあるカードの両端側に位置するグランド用接触部間と対向するカードの挿入側縁部を切り欠いたので、静電気に帯電したカードを挿入する際、静電気は常にグランド用接触部からカバーの挿入側縁部に放電される。従って、静電気の放電でカード内の回路の信号ラインに高電圧が発生することはなく、カード内の回路等が破壊されることを防止できる。
【0013】
【発明の実施の形態】
以下、本願発明のカード用コネクタ装置を具体化した実施形態について図1乃至図12を参照して説明する。
【0014】
<第1実施形態>
まず、第1実施形態のカード用コネクタ装置に装着されるカードについて説明する。図8、図10に示すように、カード10は、長方形状をなし、樹脂製のケース11内に、メモリを構成するIC等を実装した回路基板(図示せず)を備えて構成される。カード10の前端部下面には、図10に示すように、複数の接触部12が配設されており、各接触部12のうち左右両端側(図1中、上下両端側)に位置する接触部12がグランド用接触部12aであり、中央に位置する接触部12が電源用接触部12bであり、その他の接触部12が信号用接触部12cとなっている。
【0015】
第1実施形態のカード用コネクタ装置は、図1乃至図4に示すように、樹脂製のハウジング20とこのハウジング20を覆う金属製のカバー22とを備えて構成される。
ハウジング20には、カード10が挿着されるカード挿入部21と、その奥部にカード10の複数の接触部12とそれぞれ接触する端子23が設けられている。カード挿入部21は、上面を方形状に凹ませて形成され、図3中、右側面にカード挿入口21aを有している。また、図5に示すように、左右両内壁面がカード10を挿着位置へ案内するためのガイド面21b、21bとなっている。
【0016】
各端子23は、図3に示すように、細長な弾性片からなり、先端部をカード挿入部21内へ突出させた状態で、カード挿入方向とは直交する方向に7個並設されている。各端子23の先端部には、カード10の各接触部12と接触する接点が形成され、先端部とは反対側の端部は、ハウジング20の後端部(図3中、左端部)から後方へ突出し、回路基板24の回路パターンに半田付けされるようになっている。各端子23のうち、左右両端側(図3中、上下両端側)に位置する2つの端子23が、グランド用端子23aで、中央に位置する端子23が電源用端子23b、その他の端子23が信号用端子23cとなっている。
【0017】
カバー22は、図5に示すように、金属板を正面視門形状に折り曲げて形成され、カード挿入部21の上面を覆うとともに左右両側板がハウジング20の左右両外側面に沿って配される。左右両側板の下縁部のうち、図1に示すように、前後両端部(図1中、左右両端部)の計4箇所が回路基板24の実装面に沿って直角に張り出しており、この張り出し部22aが回路基板24のグランドパターンに半田付けされるようになっている。
【0018】
カバー22の前縁部は、その左右両縁部が前方に延出形成されるとともに上縁部が斜め上方に向けて延出形成されており、図2に示すように、左右両側板間に樹脂製の開閉扉25が回動可能に支持されている。開閉扉25はカード挿入口21aを塞ぐ横長な方形状に形成されるとともに、左右両縁部に回動軸25a、25aが突出形成されており、その両回動軸25aがカバー22の左右両側板に形成される支持孔22b、22bに嵌り込んでいる。また、図2中、正面視左側の回動軸25aには捻りコイルバネ26が取着されており、常時開閉扉25がカード挿入口21aを閉じる位置に付勢されるようになっている。
【0019】
カバー22には、さらに、第1の静電気対策手段30、第2の静電気対策手段40、第3の静電気対策手段50が設けられている。第1の静電気対策手段30は、図1、図4、図5に示すように、カバー22の上面部のうちその中央領域を上方へ膨出させることによって構成される。その膨出部31の左縁部31aは、図5に示すように、挿入途中にあるカード10の接触部12のうち最も左端にあるグランド用接触部12aの左側縁部を上方に延ばした線上とほぼ同じ位置或いはその位置より僅かに外方(図5中、左方)の位置にあり、信号用接触部12cからカバー22までの最短距離A1がグランド用接触部12aからカバー22までの最短距離A2より長くなるように形成されている。
【0020】
膨出部31の右縁部31bも、上記左縁部31a同様、挿入途中にあるカード10の接触部12のうち最も右端にあるグランド用接触部12aの右側縁部を上方延ばした線上とほぼ同じ位置或いはその位置より僅かに外方(図5中、右方)の位置にあり、信号用接触部12cからカバー22までの最短距離A1がグランド用接触部12aからカバー22までの最短距離A2より長くなるように形成されている。
【0021】
また、膨出部31は、図7に示すように、少なくともカード10を挿入しグランド用接触部12aがグランド用端子23aと接触し始める位置まで、信号用接触部12cからカバー22までの最短距離A1がグランド用接触部12aからカバー22までの最短距離A2より長くなるように奥方へ延びている。
【0022】
第2の静電気対策手段40は、図6、図7に示すように、カバー22の上面前端部における傾斜面の左右両端部を切り欠いて内方へ突出させることにより形成される。この各突出部41、41は、挿入されるカード10の上面と接触する位置まで突出形成されるとともに各グランド用接触部12aの外側縁部(左側のグランド用接触部12aにおいては左縁部、右側のグランド用接触部12aにおいては右側縁部)を上方に延ばした線上とほぼ同じ位置或いはその位置より僅かに外方(左側の突出部41は左方、右側の突出部41は右方)の位置にそれぞれ形成される。即ち、カード10が挿入され、各接触部12が各突出部41の真下に来た状態で、各信号用接触部12cからカバー22までの最短距離B1より各突出部41からグランド用接触部12aまでの最短距離B2が短くなるように形成されている。
【0023】
第3の静電気対策手段50は図1、図9に示すように、カバー22の前縁部を方形状に切り欠いて形成される。この切欠部51の左右両縁部51a、51a(図9中、上下両側の縁部)は、挿入開始状態にあるカード10の左右両端側(図9中、上下両端側)に位置する各グランド用接触部12aの外側縁部(左側のグランド用接触部12aにおいては左縁部、右側のグランド用接触部12aにおいては右側縁部)を延長した線上とほぼ同じ位置或いは僅かに外方(左側縁部51aは左方、右側縁部51aは右方)の位置にあり、挿入開始状態にある各信号用接触部12cからカバー22の前縁部までの最短距離C1が各グランド用接触部12aからカバー22の前縁部までの最短距離C2より長くなるように形成されている。なお、カード10の挿入が開始される挿入開始状態では、カード10は、本実施形態のカード用コネクタ装置が組み込まれる筐体に設けられた挿入口27の開口縁部にガイドされ、上記信号用接触部12cからカバー22の前縁部までの最短距離C1とグランド用接触部12aからカバー22の前縁部までの最短距離C2との関係が維持される。
【0024】
次に、本実施形態の作用について説明する。静電気に帯電したカード10或いは静電気に帯電した操作者がカード10を挿入する場合、カード10をカード挿入口21aに近づけていくと、カード10の各信号用接触部12cからカバー22までの最短距離C1が各グランド用接触部12aからカバー22までの最短距離C2より長いため、静電気は信号用接触部12cからカバー22に放電されることはなく、グランド用接触部12aからカバー22に放電される(図9参照)。
【0025】
続いて、カード10をカード挿入口21aに挿入して奥方へ運び入れると各突出部41がカード10の上面に接触する。ここで、各グランド用接触部12aから突出部41までの最短距離B2が各信号用接触部12cからカバー22までの最短距離B1より短いため、上記において放電されなかった静電気はグランド用接触部12aから突出部41に放電される(図6参照)。
【0026】
さらに、カード10を奥方へ運び込み、挿着位置に装着する(図8参照)。ここで、カバー22の上面が膨出し、挿入途中において各信号用接触部12cからカバー22までの最短距離A1が各グランド用接触部12aからカバー22までの最短距離A2より長くなっているため、上記において放電されなかった静電気は、信号用接触部12cからカバー22に放電されることはなく、グランド用接触部12aからカバー22に放電される(図5参照)。
【0027】
このように上記実施形態では、カバー22の前縁部に切欠部51を形成し、カード挿入開始時にカード10に帯電した静電気が常にグランド用接触部12aからカバー22に放電されるようにしたので、静電気の放電でカード10内の回路の信号ラインに高電圧が発生してカード10内のIC、或いは記憶データ等が破壊されてしまうことを防止できる。
【0028】
また、カード10の挿入途中において、各突出部41がカード10の上面に接触してカード10に帯電した静電気が各突出部41に放電されるようにしたので、挿入途中において静電気の放電でカード10内の回路の信号ラインに高電圧が発生することはなく、カード10内のIC或いは記憶データ等の破壊を防止できる。
【0029】
さらに、カバー22の上面部を膨出させてカード10に帯電した静電がグランド用接触部12aからカバー22に放電されるようにしたので、カード10が挿着位置に至る間、静電気が信号用接触部12cからカバー22に放電されることはなく、カード10内の信号ラインに高電圧が発生してIC或いは記憶データ等が破壊されてしまうことを防止できる。
【0030】
<第2実施形態>
第1実施形態と同一構成については、同一符号を付して詳細な説明は省略する。図11、図12に示すように第2実施形態のカバー22には、静電気対策手段60として、左右両端部に内方へ突出する突条部61、61が対向して形成されている。かかる各突条部61は、挿入されるカード10の上面と接触するように突出形成されるとともに各突条部61の内側縁部(図12中、右側の突条部61においては右側縁部、左側の突条部61においては左側縁部)61a、61bが挿入途中にあるカード10の各グランド用接触部12aの外側縁部(左側のグランド用接触部12aにおいては左縁部、右側のグランド用接触部12aにおいては右側縁部)を上方に延長した線上とほぼ同位置或いは僅かに外方の位置にあり、挿入途中にある各信号用接触部12cからカバー22までの最短距離D1が各グランド用接触部12aから各突条部61までの最短距離D2より長くなるように形成されている。
【0031】
また、各突条部61は、少なくともカード10を挿入しグランド用接触部12aがグランド用端子23aと接触し始める位置まで、信号用接触部12cからカバー22までの最短距離D1がグランド用接触部12aからカバー22までの最短距離D2より長くなるように奥方へ延びている。
【0032】
これによって、挿入途中にある各信号用接触部12cからカバー22までの最短距離D1が各グランド用接触部12aから各突条部61までの最短距離D2より長くなっているため、挿入途中において、カード10に帯電した静電気は信号用接触部12cからカバー22に放電されることはなく、常にグランド用接触部12aからカバー22に放電される。従って、カード10の挿入途中において、静電気の放電でカード10内の回路の信号ラインに高電圧が発生してカード10内のICや記憶データ等が破壊されることを防止できる。
【0033】
なお、本発明は上記実施形態に限定されるものではなく、例えば次のように変して実施することができ、これらの実施形態も本発明の技術的範囲に属する。 (1) 上記第1実施形態では、第1の静電気対策手段30をカバー22の上面部中央領域を膨出させることにより構成したが、その領域を切り欠いて開口させるようにしてもよい。
【0034】
(2) 上記第1実施形態では、膨出部31は、カード10のグランド用接触部12aがグランド用端子23aと接触し始める位置まで、信号用接触部12cからカバー22までの最短距離A1がグランド用接触部12aからカバー22までの最短距離A2より長くなるように奥方に延びていたが、それよりさらに奥方へ延びていてもよいし、手前側(カード挿入口側)に短くてもよい。
【0035】
(3) 上記第1実施形態では、カバー22に第1の静電気対策手段30と第2の静電気対策手段40と第3の静電気対策手段50が設けられていたが、第1、第2、第3の静電気対策手段のうち少なくとも1つが設けられていればよい。その他、本発明は要旨を逸脱しない範囲内で種々変更して実施することができる。
【図面の簡単な説明】
【図1】 第1実施形態のカード用コネクタ装置全体を示す上面図である。
【図2】 同実施形態のカード用コネクタ装置全体を示す正面図である。
【図3】 同実施形態のカバーを取った状態を示す上面図である。
【図4】 同実施形態のカード用コネクタ装置全体を示す側面図である。
【図5】同実施形態の図1中、5−5線での断面図である。
【図6】同実施形態の図1中、6−6線での断面図である。
【図7】同実施形態の図1中、7−7線での断面図である。
【図8】同実施形態のカード装着状態を示す側断面図である。
【図9】同実施形態の切欠部(第3の静電気対策手段)を示す上面図である。
【図10】同実施形態の膨出部(第1の静電気対策手段)を示すカバーの裏面図である。
【図11】第2実施形態のカバーを示す上面図である。
【図12】同実施形態の図11中、12−12線での断面図である。
【図13】従来例を示す断面図である。
【符号の説明】
10 カード
12 接触部
12a グランド用接触部
12c 信号用接触部
21 カード挿入部
22 カバー
23 端子
23a グランド用端子
23c 信号用端子
30 第1の静電気対策手段
31 膨出部
40 第2の静電気対策手段
41 突出部
50 第3の静電気対策手段
51 切欠部
60 静電気対策手段
61 突条部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a card connector device for mounting a card in which an IC or the like constituting a memory is installed.
[0002]
[Prior art]
Generally, a card connector device to which a small memory card is attached is provided with a resin housing 1 as shown in FIG. 13, and a card insertion portion into which a memory card 2 is inserted is provided in the housing 1. 3 and a plurality of terminals 5 that are in contact with the respective contact portions 4 of the memory card 2 inserted into the card insertion portion 3. The housing 1 is provided with a metal cover 6 that covers the card insertion portion 3, and a part of the cover 6 is soldered to the ground pattern of the circuit board 7.
[0003]
[Problems to be solved by the invention]
By the way, if the memory card to be inserted into the card insertion part is charged with static electricity or the operator who inserts the card is charged with static electricity, when the memory card is inserted or in the middle of insertion, static electricity is applied to the cover from the contact part of the card. Discharge may occur. However, in the conventional structure, if not sure which discharge from the contact portion to the cover occurs for each of the shortest distance is the same from the contact portion to the cover, the discharge from the contact portion of the ground occurred memory There is no effect on the circuit in the card, but if a discharge occurs from the signal contact, a voltage of several thousand to 10,000 volts is generated in the signal line of the circuit in the memory card and recorded in the IC or memory in the card. There is a risk that the recorded data will be destroyed.
[0004]
The present invention has been made in view of the above circumstances, and the object thereof is to provide a metal cover and destroy a circuit or the like in the card when a statically charged card is inserted. The present invention provides a card connector device that can be prevented.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a card connector device according to claim 1 includes a card insertion portion into which a card is inserted and a plurality of connection terminals that come into contact with each contact portion of the card inserted into the card insertion portion. in the card connector device, with a metal cover that is connected to a ground of covers and circuit card insertion portion is provided, each contact portion, and a for ground contact portion and the signal contact portions, each The contact portions are juxtaposed in a direction orthogonal to the card insertion direction, and the contact portions located on both ends of the juxtaposed contact portions are ground contact portions, and the plurality of connection terminals are: a signal terminal, and a ground pin positioned on both ends thereof, a metal cover, the shortest distance from the signal contact portions of the card inserted into the card insertion portion to cover, ground Cover from cover There is an anti-static means that is longer than the shortest distance until the card is inserted into the card insertion part, and the ground contact part extends to the back of the card insertion part until it begins to contact the ground terminal. It is characterized by.
[0006]
Card connector device according to claim 2, Electrostatic Discharge means is constituted by a bulging portion which bulges upward at least card area facing the between two ground contact portions in the half-inserted in the upper surface of the cover, outer edges on both sides of the bulging portion is characterized that you located at substantially the same position or slightly outwardly and a line extended toward the outer edge of the ground contact portions on the cover.
[0007]
The card connector according to claim 3, static electricity countermeasure means, shortest and the projecting portion is provided cover and both ground contact portion which projects in correspondence to the contact portion for both the ground to the upper surface of the cover inward distance is constituted by protrusions shortening the inner edge of the ridge portion, you located at substantially the same position or slightly outwardly and a line extended toward the outer edge of the ground contact portions on the cover It is characterized by that.
[0008]
The card connector device according to claim 4 forms second static electricity countermeasure means , and the second static electricity countermeasure means is the insertion slot side edge of the cover facing between the ground contact portions of the card in the insertion start state. It is formed by notching a part.
[0009]
[Action and effect of the invention]
According to the first aspect of the present invention, the cover is provided with static electricity countermeasure means, and the shortest distance from the card signal contact portion to the cover is longer than the shortest distance from the ground contact portion to the cover. Even when charged, static electricity is always discharged from the ground contact portion to the cover. Therefore, when static electricity is discharged, a high voltage is not generated in the signal line of the circuit in the card, and the circuit in the card can be prevented from being destroyed.
[0010]
According to the second aspect of the present invention, since the upper surface of the cover facing the ground contact portions located on both ends of the card in the middle of insertion is bulged upward, the static electricity charged on the card is In this case, the cover is always discharged from the ground contact portion. Accordingly, static electricity is not discharged from the signal contact portion of the card to the cover in the middle of the insertion, and the destruction of the circuit in the card can be prevented.
[0011]
According to the third aspect of the present invention, the protrusion is provided on the cover corresponding to both the ground contact portions located on both ends of the card, and the shortest distance between the cover and the ground contact portion is shortened. When the card is charged, the static electricity is always discharged from the ground contact portion to the cover even if the card is charged with static electricity. Therefore, when static electricity is discharged, no high voltage is generated in the signal line of the circuit in the card, and the circuit in the card can be prevented from being destroyed.
[0012]
According to the invention of claim 4, since the insertion side edge portion of the card facing the gap between the ground contact portions located on both ends of the card in the insertion start state is cut out, when inserting the electrostatically charged card Static electricity is always discharged from the contact portion for ground to the edge on the insertion side of the cover. Therefore, a high voltage is not generated in the signal line of the circuit in the card due to electrostatic discharge, and the circuit in the card can be prevented from being destroyed.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a card connector device according to the present invention will be described with reference to FIGS.
[0014]
<First Embodiment>
First, a card mounted on the card connector device of the first embodiment will be described. As shown in FIGS. 8 and 10, the card 10 has a rectangular shape, and is configured by including a circuit board (not shown) in which an IC or the like constituting a memory is mounted in a resin case 11. As shown in FIG. 10, a plurality of contact portions 12 are arranged on the lower surface of the front end portion of the card 10, and the contacts located on both the left and right ends (upper and lower ends in FIG. 1) of each contact portion 12. The portion 12 is a ground contact portion 12a, the contact portion 12 located in the center is a power contact portion 12b, and the other contact portions 12 are signal contact portions 12c.
[0015]
As shown in FIGS. 1 to 4, the card connector device of the first embodiment includes a resin housing 20 and a metal cover 22 that covers the housing 20.
The housing 20 is provided with a card insertion portion 21 into which the card 10 is inserted, and terminals 23 which are in contact with the contact portions 12 of the card 10 at the back thereof. The card insertion portion 21 is formed with a top surface recessed in a square shape, and has a card insertion slot 21a on the right side surface in FIG. Further, as shown in FIG. 5, the left and right inner wall surfaces are guide surfaces 21b and 21b for guiding the card 10 to the insertion position.
[0016]
As shown in FIG. 3, each terminal 23 is composed of an elongated elastic piece, and seven terminals 23 are arranged in parallel in a direction orthogonal to the card insertion direction in a state where the tip portion protrudes into the card insertion portion 21. . A contact point that contacts each contact portion 12 of the card 10 is formed at the front end portion of each terminal 23, and the end opposite to the front end portion is from the rear end portion (left end portion in FIG. 3) of the housing 20. It protrudes rearward and is soldered to the circuit pattern of the circuit board 24. Of each terminal 23, two terminals 23 located on both left and right ends (upper and lower ends in FIG. 3) are ground terminals 23a, a centrally located terminal 23 is a power supply terminal 23b, and other terminals 23 are provided. This is a signal terminal 23c.
[0017]
As shown in FIG. 5, the cover 22 is formed by bending a metal plate into a frontal portal shape, covers the upper surface of the card insertion portion 21, and the left and right side plates are arranged along the left and right outer sides of the housing 20. . As shown in FIG. 1, among the lower edge portions of the left and right side plates, a total of four locations, both front and rear end portions (left and right end portions in FIG. 1), protrude at right angles along the mounting surface of the circuit board 24. The overhang portion 22 a is soldered to the ground pattern of the circuit board 24.
[0018]
The front edge of the cover 22 is formed such that both left and right edges extend forward and the upper edge extends obliquely upward, as shown in FIG. A resin opening / closing door 25 is rotatably supported. The opening / closing door 25 is formed in a horizontally long rectangular shape that closes the card insertion slot 21 a, and rotating shafts 25 a, 25 a are formed to protrude from both left and right edges. It fits in support holes 22b and 22b formed in the plate. In FIG. 2, a torsion coil spring 26 is attached to the rotation shaft 25a on the left side when viewed from the front, so that the opening / closing door 25 is always urged to a position where the card insertion slot 21a is closed.
[0019]
The cover 22 is further provided with a first static electricity countermeasure means 30, a second static electricity countermeasure means 40, and a third static electricity countermeasure means 50. As shown in FIGS. 1, 4, and 5, the first static electricity countermeasure unit 30 is configured by causing the central region of the upper surface portion of the cover 22 to bulge upward. As shown in FIG. 5, the left edge 31a of the bulging part 31 is a line extending upward from the left edge of the ground contact part 12a at the leftmost end of the contact part 12 of the card 10 in the middle of insertion. Or a position slightly outward (leftward in FIG. 5) from that position, and the shortest distance A1 from the signal contact portion 12c to the cover 22 is the shortest distance from the ground contact portion 12a to the cover 22. It is formed to be longer than the distance A2.
[0020]
The right edge portion 31b of the bulging portion 31 is substantially the same as the left edge portion 31a on the line extending the right edge portion of the rightmost edge portion of the contact portion 12a for ground at the right end of the contact portion 12 of the card 10 in the middle of insertion. The shortest distance A1 from the signal contact portion 12c to the cover 22 is the shortest distance A2 from the ground contact portion 12a to the cover 22 at the same position or slightly outside (right in FIG. 5). It is formed to be longer.
[0021]
Further, as shown in FIG. 7, the bulging portion 31 is the shortest distance from the signal contact portion 12c to the cover 22 until at least the card 10 is inserted and the ground contact portion 12a starts to contact the ground terminal 23a. A1 extends to the back so as to be longer than the shortest distance A2 from the contact portion 12a for the ground to the cover 22.
[0022]
As shown in FIGS. 6 and 7, the second static electricity countermeasure means 40 is formed by cutting out the left and right end portions of the inclined surface at the front end portion of the upper surface of the cover 22 so as to protrude inward. Each of the protrusions 41 and 41 is formed to protrude to a position where it contacts the upper surface of the card 10 to be inserted, and the outer edge portion of each ground contact portion 12a (the left edge portion in the left ground contact portion 12a, The right ground contact portion 12a (the right edge) is almost the same position as the line extending upward, or slightly outward from the position (the left protrusion 41 is on the left and the right protrusion 41 is on the right). Respectively. That is, the card 10 is inserted and the contact portions 12 are directly below the protrusions 41, and the contact portions 12a from the protrusions 41 to the ground contact portions 12a from the shortest distance B1 from the signal contact portions 12c to the cover 22. The shortest distance B2 is shortened.
[0023]
As shown in FIGS. 1 and 9, the third static electricity countermeasure means 50 is formed by cutting out the front edge of the cover 22 into a square shape. The left and right edges 51a, 51a (the edges on both the upper and lower sides in FIG. 9) of the notch 51 are the grounds located on the left and right ends (the upper and lower ends in FIG. 9) of the card 10 in the insertion start state. The outer edge of the contact portion 12a (the left edge portion for the left ground contact portion 12a and the right edge portion for the right ground contact portion 12a) is substantially the same position as the extended line or slightly outward (left side). Edge 51a is on the left side and right edge 51a is on the right), and the shortest distance C1 from each signal contact portion 12c in the insertion start state to the front edge portion of cover 22 is each ground contact portion 12a. To the front edge of the cover 22 so as to be longer than the shortest distance C2. In the insertion start state in which insertion of the card 10 is started, the card 10 is guided by the opening edge portion of the insertion port 27 provided in the housing in which the card connector device of the present embodiment is incorporated, and The relationship between the shortest distance C1 from the contact portion 12c to the front edge of the cover 22 and the shortest distance C2 from the ground contact portion 12a to the front edge of the cover 22 is maintained.
[0024]
Next, the operation of this embodiment will be described. When the card 10 charged with static electricity or an operator charged with static electricity inserts the card 10, when the card 10 is brought close to the card insertion slot 21 a, the shortest distance from each signal contact portion 12 c of the card 10 to the cover 22. Since C1 is longer than the shortest distance C2 from each ground contact portion 12a to the cover 22, static electricity is not discharged from the signal contact portion 12c to the cover 22, but is discharged from the ground contact portion 12a to the cover 22. (See FIG. 9).
[0025]
Subsequently, when the card 10 is inserted into the card insertion slot 21 a and carried to the back, each protrusion 41 comes into contact with the upper surface of the card 10. Here, since the shortest distance B2 from each ground contact portion 12a to the protruding portion 41 is shorter than the shortest distance B1 from each signal contact portion 12c to the cover 22, static electricity that has not been discharged in the above is the ground contact portion 12a. To the projecting portion 41 (see FIG. 6).
[0026]
Further, the card 10 is carried to the back and attached to the insertion position (see FIG. 8). Here, the upper surface of the cover 22 bulges out, and the shortest distance A1 from each signal contact portion 12c to the cover 22 is longer than the shortest distance A2 from each ground contact portion 12a to the cover 22 during insertion. The static electricity not discharged in the above is not discharged from the signal contact portion 12c to the cover 22, but is discharged from the ground contact portion 12a to the cover 22 (see FIG. 5).
[0027]
Thus, in the above embodiment, the notch 51 is formed at the front edge of the cover 22 so that the static electricity charged on the card 10 at the start of card insertion is always discharged from the ground contact portion 12a to the cover 22. Further, it is possible to prevent the high voltage from being generated in the signal line of the circuit in the card 10 due to the electrostatic discharge and the destruction of the IC or the stored data in the card 10.
[0028]
Further, during the insertion of the card 10, each protrusion 41 comes into contact with the upper surface of the card 10 so that the static electricity charged in the card 10 is discharged to each protrusion 41. A high voltage is not generated in the signal line of the circuit in the circuit 10, and destruction of the IC or stored data in the card 10 can be prevented.
[0029]
Further, since the upper surface portion of the cover 22 is bulged so that the static electricity charged on the card 10 is discharged from the contact portion 12a for ground to the cover 22, static electricity is signaled while the card 10 reaches the insertion position. Therefore, the cover 22 is not discharged from the contact portion 12c, and a high voltage is generated in the signal line in the card 10 to prevent the IC or stored data from being destroyed.
[0030]
Second Embodiment
About the same structure as 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. As shown in FIGS. 11 and 12, the cover 22 of the second embodiment is formed with ridges 61 and 61 projecting inwardly at both left and right ends as an antistatic measure 60. Each of the protrusions 61 is formed so as to come into contact with the upper surface of the card 10 to be inserted, and the inner edge of each protrusion 61 (the right edge of the right protrusion 61 in FIG. 12). The left edge portion 61a, 61b is in the middle of insertion, and the outer edge portion of each ground contact portion 12a of the card 10 in the middle of insertion (the left edge portion of the left ground contact portion 12a, the right edge portion) In the ground contact portion 12a, the shortest distance D1 from each signal contact portion 12c in the middle of insertion to the cover 22 is substantially the same position or slightly outside the line extending rightward edge portion). It is formed to be longer than the shortest distance D <b> 2 from each ground contact portion 12 a to each protrusion 61.
[0031]
Each protrusion 61 has a shortest distance D1 from the signal contact portion 12c to the cover 22 until at least a position where the card 10 is inserted and the ground contact portion 12a starts to contact the ground terminal 23a. It extends to the back so as to be longer than the shortest distance D2 from 12a to the cover 22.
[0032]
Thereby, since the shortest distance D1 from each signal contact portion 12c in the middle of insertion to the cover 22 is longer than the shortest distance D2 from each ground contact portion 12a to each protrusion 61, Static electricity charged on the card 10 is not discharged from the signal contact portion 12c to the cover 22, but is always discharged from the ground contact portion 12a to the cover 22. Accordingly, it is possible to prevent the IC, storage data, and the like in the card 10 from being destroyed due to the discharge of static electricity during the insertion of the card 10 to generate a high voltage in the signal line of the circuit in the card 10.
[0033]
In addition, this invention is not limited to the said embodiment, For example, it can change and implement as follows, These embodiments also belong to the technical scope of this invention. (1) In the first embodiment, the first static electricity countermeasure means 30 is configured to bulge the central region of the upper surface portion of the cover 22, but the region may be cut out and opened.
[0034]
(2) In the first embodiment, the bulging portion 31 has the shortest distance A1 from the signal contact portion 12c to the cover 22 until the ground contact portion 12a of the card 10 begins to contact the ground terminal 23a. Although it extended in the back so that it may become longer than the shortest distance A2 from the contact part 12a for grounds to the cover 22, you may extend in the back further than that and may be short in the near side (card insertion slot side). .
[0035]
(3) In the first embodiment, the cover 22 is provided with the first static electricity countermeasure means 30, the second static electricity countermeasure means 40, and the third static electricity countermeasure means 50, but the first, second, second It is sufficient that at least one of the three static electricity countermeasures is provided. In addition, the present invention can be implemented with various modifications without departing from the scope of the invention.
[Brief description of the drawings]
FIG. 1 is a top view showing an entire card connector device of a first embodiment.
FIG. 2 is a front view showing the entire card connector device of the embodiment.
FIG. 3 is a top view showing a state where the cover of the embodiment is removed;
FIG. 4 is a side view showing the entire card connector device of the embodiment.
FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. 1 of the embodiment.
6 is a cross-sectional view taken along line 6-6 in FIG. 1 of the embodiment.
7 is a cross-sectional view taken along line 7-7 in FIG. 1 of the embodiment. FIG.
FIG. 8 is a side sectional view showing the card mounting state of the embodiment.
FIG. 9 is a top view showing a notch (third static electricity countermeasure means) of the same embodiment;
FIG. 10 is a rear view of the cover showing the bulging portion (first static electricity countermeasure means) of the same embodiment;
FIG. 11 is a top view showing a cover according to a second embodiment.
12 is a cross-sectional view taken along line 12-12 in FIG. 11 of the same embodiment.
FIG. 13 is a cross-sectional view showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Card 12 Contact part 12a Ground contact part 12c Signal contact part 21 Card insertion part 22 Cover 23 Terminal 23a Ground terminal 23c Signal terminal 30 First static electricity countermeasure means 31 Swelling part 40 Second static electricity countermeasure means 41 Projection 50 Third static electricity countermeasure means 51 Notch 60 Static electricity countermeasure means 61 Projection

Claims (4)

カードが挿入されるカード挿入部と前記カード挿入部に挿入されたカードの各接触部とそれぞれ接触する複数の接続端子とを備えたカード用コネクタ装置において、前記カード挿入部を覆いかつ回路のグランドに接続される金属製のカバーが設けられるとともに、前記各接触部は、グランド用接触部と信号用接触部とを有し、前記各接触部は前記カードの挿入方向とは直交する方向に並設され、その並設された各接触部のうちの両端側に位置する接触部がグランド用接触部であって、前記複数の接続端子は、信号用端子と、その両端側に位置するグランド用端子とを有し、前記金属製のカバーには、前記カード挿入部に挿入される前記カードの信号用接触部から前記カバーまでの最短距離を、前記グランド用接触部から前記カバーまでの最短距離より長くする静電気対策手段が設けられ、該静電気対策手段は前記カードを前記カード挿入部に挿入し前記グランド用接触部が前記グランド用端子と接触し始める位置まで前記カード挿入部の奥方へ延びていることを特徴とするカード用コネクタ装置。A card connector device comprising: a card insertion portion into which a card is inserted; and a plurality of connection terminals that come into contact with each contact portion of the card inserted into the card insertion portion. metal cover to be connected with is provided, each contact portion, and a for ground contact portion and the signal contact portion, each contact portion in the direction orthogonal to the insertion direction of the card The contact portions that are arranged side by side and are located on both ends of each of the arranged contact portions are contact portions for grounding, and the plurality of connection terminals include signal terminals and grounds located on both ends thereof. and a use pin, wherein the metal cover, from the signal contact portions of the card inserted into the card insertion portion of the shortest distance to the cover until the cover from the ground contact portion shortest An anti-static means is provided that is longer than the distance, and the anti-static means extends to the back of the card insertion portion until the ground contact portion begins to contact the ground terminal after the card is inserted into the card insertion portion. A card connector device. 前記静電気対策手段は、前記カバーの上面部において少なくとも前記カードの挿入途中における前記両グランド用接触部間と対向する領域を上方へ膨出する膨出部により構成され、該膨出部の両側の外方縁部は、前記グランド用接触部の外側縁部を前記カバーに向かって延ばした線上とほぼ同じ位置または僅かに外方に位置することを特徴とする請求項1記載のカード用コネクタ装置。  The static electricity countermeasure means includes a bulging portion that bulges upward at least in a region facing the gap between the ground contact portions during insertion of the card in the upper surface portion of the cover, and on both sides of the bulging portion. 2. The card connector device according to claim 1, wherein the outer edge portion is located at substantially the same position as or slightly outside the line extending from the outer edge portion of the ground contact portion toward the cover. . 前記静電気対策手段は、前記カバーの上面部に前記両グランド用接触部に対応して内方へ突出する突出部を設けて前記カバーと前記両グランド用接触部との最短距離を短くする突条部により構成され、該突条部の内側の縁部は、前記グランド用接触部の外側縁部を前記カバーに向かって延ばした線上とほぼ同じ位置または僅かに外方に位置することを特徴とする請求項1記載のカード用コネクタ装置。  The static electricity countermeasure means is provided with a projecting portion projecting inwardly on the upper surface portion of the cover so as to correspond to the contact portions for both grounds, thereby shortening the shortest distance between the cover and the contact portions for both grounds. And the inner edge of the ridge is located at substantially the same position as or slightly outside the line extending the outer edge of the ground contact part toward the cover. The card connector device according to claim 1. 第2の静電気対策手段を形成し、該第2の静電気対策手段は、挿入開始状態にあるカードの前記両グランド用接触部間と対向する前記カバーの挿入口側縁部を切り欠いて形成されることを特徴とする請求項1記載のカード用コネクタ装置。  The second static electricity countermeasure means is formed, and the second static electricity countermeasure means is formed by cutting out the edge portion on the insertion port side of the cover facing between the ground contact portions of the card in the insertion start state. The card connector device according to claim 1.
JP2001401697A 2001-12-20 2001-12-28 Card connector device Expired - Fee Related JP3998472B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2001401697A JP3998472B2 (en) 2001-12-20 2001-12-28 Card connector device
TW91133718A TW574773B (en) 2001-12-20 2002-11-19 Connector device for cards
KR10-2002-0076616A KR100515171B1 (en) 2001-12-20 2002-12-04 Connector device for card
CNB021575312A CN1225819C (en) 2001-12-20 2002-12-19 Card-used connector

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001387469 2001-12-20
JP2001-387469 2001-12-20
JP2001401697A JP3998472B2 (en) 2001-12-20 2001-12-28 Card connector device

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JP2003249314A JP2003249314A (en) 2003-09-05
JP3998472B2 true JP3998472B2 (en) 2007-10-24

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JP2001401697A Expired - Fee Related JP3998472B2 (en) 2001-12-20 2001-12-28 Card connector device

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JP (1) JP3998472B2 (en)
KR (1) KR100515171B1 (en)
CN (1) CN1225819C (en)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004146167A (en) 2002-10-23 2004-05-20 Jst Mfg Co Ltd Connector with insertion mechanism
JP2004146168A (en) 2002-10-23 2004-05-20 Jst Mfg Co Ltd Connector
JP2006330971A (en) * 2005-05-25 2006-12-07 Sharp Corp Card slot device
JP4449883B2 (en) 2005-10-20 2010-04-14 ブラザー工業株式会社 Storage medium connecting device and information device having the same

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US5339222A (en) * 1993-04-06 1994-08-16 The Whitaker Corporation Shielded printed circuit card holder
JPH08287198A (en) * 1995-04-13 1996-11-01 Kel Corp Connector for ic card and ic card reader writer
JP3520964B2 (en) * 1998-06-29 2004-04-19 アルプス電気株式会社 IC card connector
JP2000214971A (en) * 1999-01-22 2000-08-04 Honda Tsushin Kogyo Co Ltd Adapter for cf card

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TW574773B (en) 2004-02-01
JP2003249314A (en) 2003-09-05
TW200302602A (en) 2003-08-01
KR100515171B1 (en) 2005-09-16
CN1428896A (en) 2003-07-09
CN1225819C (en) 2005-11-02
KR20030052979A (en) 2003-06-27

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