JP4209558B2

JP4209558B2 - Storage device terminal connection structure

Info

Publication number: JP4209558B2
Application number: JP20117899A
Authority: JP
Inventors: 清治高橋
Original assignee: Yokowo Co Ltd
Current assignee: Yokowo Co Ltd
Priority date: 1999-07-15
Filing date: 1999-07-15
Publication date: 2009-01-14
Anticipated expiration: 2019-07-15
Also published as: JP2001028283A

Description

【０００１】
【発明の属する技術分野】
本発明は、記憶装置の挿入抜き取りにより、その端子部を電気的接続しまたは電気的に分離するための記憶装置の端子接続構造に関するものである。
【０００２】
【従来の技術】
デジタルカメラやデジタルビデオが、近年著しく普及しつつある。かかる機器のデジタルデータの記憶装置の一例として、図７に示すごとき装置が用いられている。図７は、一般的にメモリースティクと称される固体の記憶装置であり、（ａ）は縦断面図であり、（ｂ）は底面図であり、（ｃ）は（ａ）の左側面図である。
【０００３】
図７において、記憶装置１０は全体が絶縁樹脂で覆われていて可動部のない比較的に薄い厚さのほぼ矩形直方体の固体であって、その挿入方向の先端側の幅広の一側面に複数の端子からなる端子部１２が設けられるとともに、続いて傾斜面によりその厚さが増加する段差部１４が設けられている。なお、端子部１２の各端子の間を仕切るように仕切壁１６、１６…が設けられている。端子部１２の各端子は装置内に設けられた固体メモリー回路などに適宜に電気的接続されていることは勿論である。
【０００４】
かかる外形をした記憶装置１０の従来の端接続構造の一例を図８を参照して説明する。図８は、従来の記憶装置の端子接続構造の一例を示し、（ａ）は縦断面図であり、（ｂ）は回路基板を除いた底面図であり、（ｃ）は（ａ）の右側面図である。
【０００５】
図８において、回路基板２０に絶縁材からなる枠体２２が固定配設される。この枠体２２に、記憶装置１０が端子部１２を挿入先端側としまた回路基板２０側に向けて挿入抜き取り自在に構成される。そして、回路基板２０に、挿入された記憶装置１０の端子部１２の各端子に弾接するように、導電バネ部材２４、２４…が回路基板２０に半田付けなどにより固定されるとともに適宜な回路端子部の各端子に電気的接続される。そこで、挿入された記憶装置１０は、その端子部１２の各端子が、導電バネ部材２４、２４…を介して回路基板２０の回路端子部の各端子に電気的接続される。かかる構造の従来技術が、実開平０１−１１７０８６号公報の第３図に示されている。
【特許文献１】
実開平０１−１１７０８６号公報
【０００６】
【発明が解決しようとする課題】
上述の図８に示す従来の記憶装置の端子接続構造の一例にあっては、導電バネ部材２４、２４…が記憶装置１０の端子部１２に弾接して確実な電気的接続を得るためには、導電バネ部材２４、２４…は端子部１２に所定値以上の弾力で確実に弾接しなければならない。そして、小さな弾力による弾接では確実な電気的接続が得られない。そこで、記憶装置１０の挿入抜き取りの度に、かかる大きな弾力で導電バネ部材２４、２４…が端子部１２に弾接した状態で摺動がなされ、端子部１２の摩耗が著しい。この結果、端子部１２の電気的接触不良が生じ易い。また、摩耗により生じた金属粉などにより電気的短絡自己の虞がある。そこで、記憶装置１０の挿入抜き取りの耐久寿命回数が少ないという不具合があった。
【０００７】
本発明は、上述の従来技術の事情に鑑みてなされたもので、端子部の摩耗が生じにくく、記憶装置の挿入抜き取りの耐久寿命回数が多い記憶装置の端子接続構造を提供することを目的とする。
【０００８】
【課題を解決するための手段】
かかる目的を達成するために、本発明の記憶装置の端子接続構造は、一側面に先端側より端子部とこの端子部より厚さを増す段差部とを順次に設けた記憶装置を枠体に挿入抜き取り自在とし、挿入される前記記憶装置の前記一側面に平行で挿入方向に直交する揺動軸により前記枠体にシーソー部材を揺動自在に設け、前記記憶装置の挿入に伴い前記段差部が前記シーソー部材の一端側に当接してこれを揺動させるようになし、前記シーソー部材の他端側にスプリングコネクタを設け、前記シーソー部材の前記他端側が前記挿入される前記記憶装置の前記端子部から離れる方向に揺動バネで弾性付勢し、前記記憶装置の挿入に伴い前記段差部で前記シーソー部材を前記弾性バネの弾力に抗して揺動させ、前記端子部に前記スプリングコネクタの一端が弾接するように構成されている。
【０００９】
そして、回路基板に前記シーソー部材が臨むようにして前記枠体を固定し、前記スプリングコネクタの他端が前記回路基板に設けた回路端子部に常時弾接するように構成しても良い。
【００１０】
【発明の実施の形態】
以下、本発明の第１実施例を図１ないし図５を参照して説明する。図１は、本発明の記憶装置の端子接続構造の第１実施例を示し、（ａ）は縦断面図であり、（ｂ）は回路基板を除いた底面図である。図２は、シーソー部材の動作を示し、（ａ）は記憶装置が所定位置に挿入される前のシーソー部材の姿勢を示す図であり、（ｂ）は記憶装置が所定位置に挿入された後のシーソー部材の姿勢を示す図である。図３は、シーソー部材に設けられたスプリングコネクタを示し、（ａ）はその一例を示す図であり、（ｂ）は他の例を示す縦断面図である。図４は、スプリングピンの構造を示す図である。図５は、係合手段と解放手段を示し、（ａ）は要部の横断面図であり、（ｂ）は（ａ）のＡ矢視図である。図１ないし図５において、図７および図８と同じまたは均等な部材には同じ符号を付けて重複する説明を省略する。
【００１１】
まず、図１において、回路基板２０に絶縁材からなる枠体３０が固定される。この枠体３０に記憶装置１０が端子部１２を挿入先端側とするとともに回路基板２０側に向けて挿入抜き取り自在に構成される。また、枠体３０に、挿入された記憶装置１０の端子部１２と回路基板２０の間に、シーソー部材３２が回路基板２０に臨むようにして揺動自在に配設される。このシーソー部材３２は、記憶装置１０の端子部１２が設けられた一側面と平行でその挿入方向と直交する揺動軸３４により軸承される。そして、記憶装置１０の挿入に伴い、シーソー部材３２の一端側に記憶装置１０の段差部１４の傾斜面が当接し、シーソー部材３２の他端側が端子部１２に近づくように揺動される。また、シーソー部材３２の他端側に、端子部１２に弾接するようにスプリングコネクタ３６、３６…が配設される。さらに、シーソー部材３２は、スプリングコネクタ３６、３６…が設けられた他端側を、挿入される記憶装置１０の端子部１２から離す方向に、揺動バネ３８で弾性付勢される。また、枠体３０には、記憶装置１０の挿入先端面に弾接してこれを抜き取り方向に弾性付勢するスプリングピン４０が設けられている。さらにまた、枠体３０に挿入された状態の記憶装置１０に設けられた係合凹部４２に係合して抜き取り方向への移動を阻止する係合手段４４と、この係合手段４４の係合凹部４２に対する係合を解除する解放手段４６が設けられている。
【００１２】
次に、図２により、シーソー部材の動作につき説明する。記憶装置１０が所定位置まで挿入される前にあっては、図２（ａ）のごとく、揺動バネ３８の弾力によりシーソー部材３２は、スプリングコネクタ３６、３６…が記憶装置１０の端子部１２から離れる姿勢にあり、記憶装置１０の挿入を許容する空間が設けられている。そして、記憶装置１０が挿入されると、まず記憶装置１０の段差部１４がシーソー部材３２の一端側に設けた傾斜面からなる当接部３２ａに当接し、互いのくさび効果でシーソー部材３２が揺動され、図２（ｂ）の姿勢となる。すると、シーソー部材３２の他端側に設けられたスプリングコネクタ３６、３６…が端子部１２に弾接されて電気的接続がなされる。
【００１３】
このスプリングコネクタ３６、３６…は、図３（ａ）に示すごとく、一端が固定プランジャーで他端が可動プランジャーであって、シーソー部材３２に対して軸方向に抜け出さない範囲で移動自在に配設されている。この図３（ａ）に示すスプリングコネクタ３６、３６…は、可動プランジャーが常に回路基板２０の回路端子部に弾接していて、記憶装置１０の挿入によるシーソー部材３２の揺動で可動プランジャーの突出が可能とされ、他端の固定プランジャーが端子部１２に弾接することとなる。ここで、スプリングコネクタ３６、３６…がシーソー部材３２に対して軸方向に移動できるので、シーソー部材３２の動きが直接には端子部１２に与えられず、シーソー部材３２の揺動によりスプリングコネクタ３６、３６…の固定プランジャーで端子部１２に過大な力を与えてこれを破損させることがない。
【００１４】
なお、スプリングコネクタ３６、３６…は、図３（ｂ）に示すごとく、両端が可動プランジャーで、シーソー部材３２に固定されて配設されたものであっても良い。特に、図３（ｂ）の例は、金属チューブの両端側に可動プランジャーを抜け落ちないようにして突出および引き込み自在に配設し、両可動プランジャー間にスプリングコイルを縮設したものである。そして、金属チューブがシーソー部材３２に圧入されて固定される。シーソー部材３２の揺動により両端の可動プランジャーが突出可能とされ、記憶装置１０の端子部１２と回路基板２０の回路端子部にそれぞれ弾接して両者間の電気的接続がなされる。
【００１５】
さらに、スプリングピン４０の一例は、図４に示すごとく、金属チューブ４０ａ内にスプリングコイル４０ｂと突き出しピン４０ｃを挿入して抜け出さないように構成したものである。記憶装置１０の挿入に伴い、突き出しピン４０ｃの先端が記憶装置１０の挿入先端面に弾接して金属チューブ４０ａ内に弾力に抗して収容され、記憶装置１０を抜き取る際にはスプリングコイル４０ｂの弾力により突き出しピン４０ｃが突出されて記憶装置１０を抜き取り方向に弾性付勢する。
【００１６】
そしてさらに、係合手段４４は、図５に示すごとく、係合突部４４ａを有する板バネからなり、記憶装置１０の挿入の際に破線のごとく弾性変形し、記憶装置１０が所定の位置まで挿入されると、弾性復帰して記憶装置１０の係合凹部４２に係合突部４４ａが挿入して係合され、記憶装置１０の抜き取り方向への移動が阻止される。そして、解放手段４６は、係合手段４４の先端部に臨んで移動し得る操作ピン４６ａがスプリングコイル４６ｂで係合手段４４と離れる方向に弾性付勢されて構成されている。この操作ピン４６ａをスプリングコイル４６ｂの弾力に抗して係合手段４４側に押圧移動させると、操作ピン４６ａの先端により係合手段４４は破線のように弾性変形され、この弾性変形により係合突部４４ａが係合凹部４２から抜け出て係合が解除される。そこで、スプリングピン４０の弾力により、記憶装置１０は抜き取り方向に自動的に移動される。
【００１７】
かかる構成の本発明にあっては、記憶装置１０を挿入してスプリングコネクタ３６、３６…が端子部１２に当接する際に、段差部１４によりシーソー部材３２が揺動されて、スプリングコネクタ３６、３６…が端子部１２に弾接して僅かに摺動するだけであり、しかもその弾力はごく小さい状態から所定の大きさの弾力の状態まで変化するものであり、平均すれば小さな弾力である。そこで、従来の所定の強い弾力で長い寸法摺動されるものに比べて、端子部１２の摩耗が極めて少ない。また、摩耗による金属粉も生ずることがない。そこで、挿入抜き取り耐久回数の著しい改善が得られる。また、実施例においては、係合手段４４は記憶装置１０に係合して抜き取り方向の移動を阻止して挿入状態を保持するのみならず、記憶装置１０の側面に弾接していて枠体３０内で記憶装置１０を弾力方向に偏寄させ、位置決め作用を奏する。またこれと同時にガタ付き阻止の作用をも奏する。そして、記憶装置１０を挿入した状態で、解放手段４６の操作ピン４６ａを押圧することで記憶装置１０はスプリングピン４０の弾力により抜き取り方向に自動的に突き出され、記憶装置１０の抜き取り作業が極めて容易である。
【００１８】
さらに、本発明の第２実施例を図６を参照して説明する。図６は、本発明の記憶装置の端子接続構造の第２実施例を示し、（ａ）は縦断面図であり、（ｂ）は回路基板を除いた底面図である。図６において、図１に示す部材と同じまたは均等な部材には同じ符号を付けて重複する説明を省略する。
【００１９】
図６に示す第２実施例は、シーソー部材３２の揺動バネの構造が第１実施例と相違したものである。図６において、シーソー部材３２のスプリングコネクタ３６、３６…が配設された側の先端部の一部分をさらに伸ばして突部３２ｂを設け、この突部３２ｂに臨んで枠体３０に穿設したバネ孔３０ａ、３０ａに揺動バネ５０、５０が縮設される。この第２実施例にあっても、第１実施例と同様に、シーソー部材３２はスプリングコネクタ３６、３６…が端子部１２から離れる方向に弾性付勢される。
【００２０】
なお、上記実施例にあっては、記憶装置１０の段差部１４を傾斜面とし、これが当接するシーソー部材３２の当接部３２ａも傾斜面として、より効果的にくさび作用が作用するように構成されているが、これに限られず、少なくともいずれか一方に傾斜面が設けられていれば良い。また、上記実施例は枠体３０が回路基板２０に固定され、スプリングコネクタ３６、３６…を介して記憶装置１０の端子部１２と回路基板２０の回路端子部が電気的接続されるようになされているが、これに限られず、回路基板２０が設けられず、スプリングコネクタ３６、３６…は記憶装置１０の端子部１２に当接する側に可動プランジャーを備え、他の側に可撓性に富む接続ケーブルまたはフレキシブル回路基板などが固定および電気的接続されていても良い。ここで、記憶装置１０が挿入されていない様態では、シーソー部材３２が挿入を許容する所定の姿勢に適宜に保持されることは勿論である。
【００２１】
【発明の効果】
以上説明したように、本発明の記憶装置の端子接続構造は構成されているので、以下のごとき格別な効果を奏する。
【００２２】
請求項１記載の記憶装置の端子接続構造にあっては、記憶装置を挿入および抜き取る際に、スプリングコネクタが端子部に弾接した状態で摺動する長さが極めて僅かであり、しかもその弾力は小さい状態から所定の大きさの状態まで変化し、平均として従来のものよりも小さく、従来の所定の大きな弾力で弾接した状態で長い距離を摺動させるものに比較して、端子部の摩耗が極めて僅かである。しかも、摩耗により金属粉も生ずることがない。したがって、本発明の端子接続構造にあっては、記憶装置の挿入抜き取り耐久寿命回数を大幅に向上させることができる。また、シーソー部材を揺動バネにより偏寄させているので、記憶装置の挿入に対して、シーソー部材はこれを許容する所定の姿勢にあり、挿入に伴いシーソー部材が確実に揺動操作され、スプリングコネクタを端子部に確実に当接させ得る。
【００２３】
請求項２記載の記憶装置の端子接続構造にあっては、枠体を回路基板に固定し、挿入された記憶装置の端子部と回路基板の回路端子部をスプリングコネクタを介して電気的接続するので、回路基板と記憶装置の電気的接続が確実になされる。
【００２４】
請求項３記載の記憶装置の端子接続構造にあっては、記憶装置の段差部とシーソー部材の当接部の少なくともいずれか一方を傾斜面として、記憶装置の挿入によりくさび作用でシーソー部材を揺動させるので、記憶装置を小さな力で挿入してもシーソー部材の揺動動作を確実になし得る。
【００２５】
請求項４記載の記憶装置の端子接続構造にあっては、記憶装置の挿入状態で解放手段を操作すると、スプリングピンの弾力で枠体から記憶装置が自動的に突き出され、記憶装置の抜き取り操作が容易である。また、記憶装置が挿入された状態ではこれを人がつかみ出せないような構造であっても、記憶装置の抜き取りが可能である。
【００２６】
請求項５または６記載の記憶装置の端子接続構造にあっては、シーソー部材の動きがスプリングコネクタの弾力または軸方向移動などにより吸収調整され、直接に記憶装置の端子部に加わることがないので、シーソー部材の動作により端子部が過大な力を受けて損傷されるようなことがない。
【図面の簡単な説明】
【図１】本発明の記憶装置の端子接続構造の第１実施例を示し、（ａ）は縦断面図であり、（ｂ）は回路基板を除いた底面図である。
【図２】シーソー部材の動作を示し、（ａ）は記憶装置が所定位置に挿入される前のシーソー部材の姿勢を示す図であり、（ｂ）は記憶装置が所定位置に挿入された後のシーソー部材の姿勢を示す図である。
【図３】シーソー部材に設けられたスプリングコネクタを示し、（ａ）はその一例を示す図であり、（ｂ）は他の例を示す縦断面図である。
【図４】スプリングピンの構造を示す図である。
【図５】係合手段と解放手段を示し、（ａ）は要部の横断面図であり、（ｂ）は（ａ）のＡ矢視図である。
【図６】本発明の記憶装置の端子接続構造の第２実施例を示し、（ａ）は縦断面図であり、（ｂ）は回路基板を除いた底面図である。
【図７】一般的にメモリースティクと称される記憶装置を示し、（ａ）は縦断面図であり、（ｂ）は底面図であり、（ｃ）は（ａ）の左側面図である。
【図８】従来の記憶装置の端子接続構造の一例を示し、（ａ）は縦断面図であり、（ｂ）は回路基板を除いた底面図であり、（ｃ）は（ａ）の右側面図である。
【符号の説明】
１０記憶装置
１２端子部
１４段差部
２０回路基板
２２、３０枠体
３２シーソー部材
３４揺動軸
３６スプリングコネクタ
３８、５０揺動バネ
４０スプリングピン
４２係合凹部
４４係合手段
４６解放手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a terminal connection structure of a storage device for electrically connecting or electrically separating a terminal portion by insertion / extraction of the storage device.
[0002]
[Prior art]
In recent years, digital cameras and digital videos have become extremely popular. As an example of a digital data storage device of such a device, a device as shown in FIG. 7 is used. FIG. 7 is a solid-state storage device generally called a memory stick, (a) is a longitudinal sectional view, (b) is a bottom view, and (c) is a left side view of (a). is there.
[0003]
In FIG. 7, the storage device 10 is an almost rectangular solid having a relatively thin thickness and is entirely covered with an insulating resin and has no moving parts, and a plurality of storage devices 10 are arranged on one wide side on the distal end side in the insertion direction. A terminal portion 12 composed of the above terminals is provided, and subsequently, a stepped portion 14 whose thickness increases due to the inclined surface is provided. In addition, partition walls 16, 16... Are provided so as to partition between the terminals of the terminal portion 12. Of course, each terminal of the terminal portion 12 is appropriately electrically connected to a solid-state memory circuit or the like provided in the apparatus.
[0004]
An example of a conventional end connection structure of the storage device 10 having such an outer shape will be described with reference to FIG. 8A and 8B show an example of a terminal connection structure of a conventional memory device, where FIG. 8A is a longitudinal sectional view, FIG. 8B is a bottom view excluding a circuit board, and FIG. 8C is a right side of FIG. FIG.
[0005]
In FIG. 8, a frame body 22 made of an insulating material is fixedly disposed on the circuit board 20. The storage device 10 is configured to be freely inserted into and removed from the frame body 22 with the terminal portion 12 at the insertion tip side and toward the circuit board 20 side. The conductive spring members 24, 24... Are fixed to the circuit board 20 by soldering or the like so as to elastically contact the terminals of the terminal portion 12 of the inserted storage device 10 on the circuit board 20. It is electrically connected to each terminal of the unit. Therefore, in the inserted storage device 10, each terminal of the terminal portion 12 is electrically connected to each terminal of the circuit terminal portion of the circuit board 20 via the conductive spring members 24, 24. The prior art having such a structure is shown in FIG. 3 of Japanese Utility Model Laid-Open No. 01-117086.
[Patent Document 1]
Japanese Utility Model Publication No. 01-117086 [0006]
[Problems to be solved by the invention]
In the example of the conventional terminal connection structure of the storage device shown in FIG. 8, the conductive spring members 24, 24... Are elastically contacted with the terminal portion 12 of the storage device 10 to obtain a reliable electrical connection. The conductive spring members 24, 24,... Must be surely elastically contacted with the terminal portion 12 with a predetermined elasticity or more. And reliable electrical connection cannot be obtained by elastic contact with small elasticity. Therefore, each time the storage device 10 is inserted or removed, the conductive spring members 24, 24,... As a result, poor electrical contact of the terminal portion 12 is likely to occur. In addition, there is a risk of self-short circuit due to metal powder generated by wear. Therefore, there is a problem that the number of endurance lifetimes of insertion / extraction of the storage device 10 is small.
[0007]
The present invention has been made in view of the above-described prior art, and an object of the present invention is to provide a storage device terminal connection structure in which the wear of the terminal portion is less likely to occur and the durable life of the storage device is large. To do.
[0008]
[Means for Solving the Problems]
In order to achieve such an object, the storage device terminal connection structure of the present invention has a storage device in which a terminal portion and a stepped portion having a thickness greater than that of the terminal portion are sequentially provided on one side surface on a frame. The seesaw member is swingably provided on the frame body by a swing shaft that is parallel to the one side surface of the storage device to be inserted and orthogonal to the insertion direction, and the step portion is inserted along with the insertion of the storage device. Is in contact with one end side of the seesaw member to swing it, a spring connector is provided on the other end side of the seesaw member, and the other end side of the seesaw member is inserted into the storage device. Elastically biased by a swing spring in a direction away from the terminal portion, and with the storage device being inserted, the seesaw member is swung against the elasticity of the elastic spring at the stepped portion, and the spring connector is connected to the terminal portion. of End is configured to elastically contact.
[0009]
The frame body may be fixed so that the seesaw member faces the circuit board, and the other end of the spring connector may be always in elastic contact with a circuit terminal portion provided on the circuit board.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1A and 1B show a first embodiment of a terminal connection structure of a storage device according to the present invention, in which FIG. 1A is a longitudinal sectional view and FIG. 1B is a bottom view excluding a circuit board. 2A and 2B show the operation of the seesaw member. FIG. 2A is a view showing the posture of the seesaw member before the storage device is inserted into the predetermined position. FIG. 2B is a view after the storage device is inserted into the predetermined position. It is a figure which shows the attitude | position of this seesaw member. FIG. 3 shows a spring connector provided on a seesaw member, (a) is a view showing an example thereof, and (b) is a longitudinal sectional view showing another example. FIG. 4 is a view showing the structure of the spring pin. 5A and 5B show the engaging means and the releasing means, where FIG. 5A is a cross-sectional view of the main part, and FIG. 1 to 5, the same or equivalent members as those in FIGS. 7 and 8 are denoted by the same reference numerals and redundant description is omitted.
[0011]
First, in FIG. 1, a frame body 30 made of an insulating material is fixed to the circuit board 20. The storage device 10 is configured to be inserted into and removed from the frame body 30 with the terminal portion 12 at the insertion tip side and toward the circuit board 20 side. Further, a seesaw member 32 is swingably disposed on the frame 30 so as to face the circuit board 20 between the terminal portion 12 of the inserted storage device 10 and the circuit board 20. The seesaw member 32 is supported by a swing shaft 34 that is parallel to one side surface of the storage device 10 on which the terminal portion 12 is provided and is orthogonal to the insertion direction. As the storage device 10 is inserted, the inclined surface of the step portion 14 of the storage device 10 comes into contact with one end side of the seesaw member 32, and the other end side of the seesaw member 32 is swung so as to approach the terminal portion 12. In addition, spring connectors 36, 36... Are arranged on the other end side of the seesaw member 32 so as to elastically contact the terminal portion 12. Further, the seesaw member 32 is elastically biased by a swing spring 38 in a direction away from the other end side where the spring connectors 36, 36... Are provided from the terminal portion 12 of the storage device 10 to be inserted. In addition, the frame 30 is provided with a spring pin 40 that elastically urges the insertion end surface of the storage device 10 in an extracting direction by elastic contact. Furthermore, an engagement means 44 that engages with an engagement recess 42 provided in the storage device 10 in a state of being inserted into the frame body 30 to prevent movement in the extraction direction, and engagement of this engagement means 44 Release means 46 for releasing the engagement with the recess 42 is provided.
[0012]
Next, the operation of the seesaw member will be described with reference to FIG. Before the storage device 10 is inserted to a predetermined position, as shown in FIG. 2A, the seesaw member 32 has spring connectors 36, 36. A space that allows the storage device 10 to be inserted is provided. When the storage device 10 is inserted, the stepped portion 14 of the storage device 10 first comes into contact with the contact portion 32a made of an inclined surface provided on one end side of the seesaw member 32, and the seesaw member 32 is brought into contact with each other by the wedge effect. It swings and assumes the posture of FIG. Then, the spring connectors 36, 36... Provided on the other end side of the seesaw member 32 are elastically contacted with the terminal portion 12 to be electrically connected.
[0013]
As shown in FIG. 3A, the spring connectors 36, 36,... Are movable within a range in which one end is a fixed plunger and the other end is a movable plunger and does not come out of the seesaw member 32 in the axial direction. It is arranged. The spring connectors 36, 36... Shown in FIG. 3A are such that the movable plunger is always in elastic contact with the circuit terminal portion of the circuit board 20, and the seesaw member 32 is swung by insertion of the storage device 10 to move the movable plunger. The fixed plunger at the other end is brought into elastic contact with the terminal portion 12. Here, since the spring connectors 36, 36... Can move in the axial direction with respect to the seesaw member 32, the movement of the seesaw member 32 is not directly applied to the terminal portion 12, and the spring connector 36 is moved by the swinging of the seesaw member 32. , 36... Are not damaged by applying an excessive force to the terminal portion 12.
[0014]
As shown in FIG. 3B, the spring connectors 36, 36... May be ones that are fixed to the seesaw member 32 with both ends being movable plungers. In particular, in the example of FIG. 3B, the movable plunger is provided on both end sides of the metal tube so that the movable plunger can be protruded and retracted, and a spring coil is contracted between the movable plungers. . Then, the metal tube is press-fitted into the seesaw member 32 and fixed. By swinging the seesaw member 32, the movable plungers at both ends can project, and the terminal portion 12 of the storage device 10 and the circuit terminal portion of the circuit board 20 are elastically contacted to make electrical connection therebetween.
[0015]
Further, as shown in FIG. 4, an example of the spring pin 40 is configured such that the spring coil 40b and the protruding pin 40c are inserted into the metal tube 40a so as not to come out. As the storage device 10 is inserted, the tip of the ejector pin 40c is elastically contacted with the insertion tip surface of the storage device 10 and resists elasticity in the metal tube 40a. The protruding pin 40c is protruded by elasticity, and the storage device 10 is elastically biased in the extraction direction.
[0016]
Further, as shown in FIG. 5, the engaging means 44 is composed of a leaf spring having an engaging protrusion 44a, and is elastically deformed as shown by a broken line when the storage device 10 is inserted, so that the storage device 10 reaches a predetermined position. When inserted, the elastic protrusion is restored, and the engaging protrusion 44a is inserted into and engaged with the engaging recess 42 of the storage device 10, thereby preventing the storage device 10 from moving in the extraction direction. The release means 46 is configured such that an operation pin 46a that can move toward the tip of the engagement means 44 is elastically biased in a direction away from the engagement means 44 by a spring coil 46b. When the operation pin 46a is pressed and moved toward the engagement means 44 against the elasticity of the spring coil 46b, the engagement means 44 is elastically deformed as indicated by a broken line by the tip of the operation pin 46a, and the engagement is caused by this elastic deformation. The protrusion 44a comes out of the engagement recess 42 and the engagement is released. Therefore, the storage device 10 is automatically moved in the extraction direction by the elasticity of the spring pin 40.
[0017]
In the present invention having such a configuration, when the storage device 10 is inserted and the spring connectors 36, 36... Abut on the terminal portion 12, the seesaw member 32 is swung by the step portion 14, and the spring connector 36, 36... Elastically contact the terminal portion 12 and slide only slightly, and its elasticity varies from a very small state to a state of elasticity of a predetermined magnitude, and on average it is a small elasticity. Therefore, the wear of the terminal portion 12 is extremely small as compared with the conventional case in which a long dimension is slid with a predetermined strong elasticity. Further, metal powder due to wear does not occur. Therefore, a significant improvement in the number of insertion / extraction durability is obtained. Further, in the embodiment, the engaging means 44 engages with the storage device 10 to prevent the movement in the extraction direction and keep the insertion state, but also elastically contacts the side surface of the storage device 10 and the frame 30. The storage device 10 is biased in the direction of elasticity in order to achieve a positioning action. At the same time, it also acts to prevent rattling. Then, by pressing the operation pin 46a of the release means 46 with the storage device 10 inserted, the storage device 10 is automatically protruded in the extraction direction by the elasticity of the spring pin 40, and the extraction operation of the storage device 10 is extremely difficult. Easy.
[0018]
Further, a second embodiment of the present invention will be described with reference to FIG. 6A and 6B show a second embodiment of the terminal connection structure of the memory device of the present invention, wherein FIG. 6A is a longitudinal sectional view, and FIG. 6B is a bottom view excluding a circuit board. In FIG. 6, the same or equivalent members as those shown in FIG.
[0019]
The second embodiment shown in FIG. 6 is different from the first embodiment in the structure of the swing spring of the seesaw member 32. In FIG. 6, a part of the tip of the seesaw member 32 on the side where the spring connectors 36, 36... Are disposed is further extended to provide a protrusion 32b, and the spring formed in the frame 30 facing this protrusion 32b. Oscillating springs 50 and 50 are contracted in the holes 30a and 30a. Even in the second embodiment, as in the first embodiment, the seesaw member 32 is elastically biased in the direction in which the spring connectors 36, 36.
[0020]
In the above-described embodiment, the stepped portion 14 of the storage device 10 is formed as an inclined surface, and the contact portion 32a of the seesaw member 32 with which the stepped portion 14 abuts is also formed as an inclined surface, so that the wedge action is more effective. However, the present invention is not limited to this, and it is sufficient that an inclined surface is provided on at least one of them. Further, in the above embodiment, the frame 30 is fixed to the circuit board 20, and the terminal portion 12 of the storage device 10 and the circuit terminal portion of the circuit board 20 are electrically connected via the spring connectors 36, 36. However, the present invention is not limited to this, and the circuit board 20 is not provided. The spring connectors 36, 36,... Have a movable plunger on the side that contacts the terminal portion 12 of the storage device 10, and are flexible on the other side. A rich connection cable or flexible circuit board may be fixed and electrically connected. Here, in a state where the storage device 10 is not inserted, it is a matter of course that the seesaw member 32 is appropriately held in a predetermined posture allowing insertion.
[0021]
【The invention's effect】
As described above, since the terminal connection structure of the storage device of the present invention is configured, the following special effects can be obtained.
[0022]
2. The storage device terminal connection structure according to claim 1, wherein when the storage device is inserted and removed, the spring connector slides in a state in which the spring connector is in elastic contact with the terminal portion, and its elasticity is high. Changes from a small state to a state of a predetermined size, and is smaller than the conventional one on average, compared with the conventional one that slides a long distance in a state of elastic contact with a predetermined large elasticity. There is very little wear. In addition, metal powder is not generated due to wear. Therefore, in the terminal connection structure of the present invention, the number of insertion / extraction durability lives of the storage device can be greatly improved. Further, since the seesaw member is biased by the swinging spring, the seesaw member is in a predetermined posture that allows the storage device to be inserted, and the seesaw member is securely swung with the insertion, The spring connector can be securely brought into contact with the terminal portion.
[0023]
3. The storage device terminal connection structure according to claim 2, wherein the frame is fixed to the circuit board, and the terminal portion of the inserted storage device and the circuit terminal portion of the circuit board are electrically connected via the spring connector. Therefore, the electrical connection between the circuit board and the storage device is ensured.
[0024]
The storage device terminal connection structure according to claim 3 , wherein at least one of the stepped portion of the storage device and the contact portion of the seesaw member is an inclined surface, and the seesaw member is rocked by the wedge action by inserting the storage device. Therefore, even if the storage device is inserted with a small force, the seesaw member can be reliably swung.
[0025]
5. The storage device terminal connection structure according to claim 4, wherein when the release means is operated in the inserted state of the storage device, the storage device is automatically protruded from the frame by the elasticity of the spring pin, and the storage device is removed. Is easy. Further, even when the storage device is inserted, the storage device can be removed even if the structure is such that a person cannot grasp it.
[0026]
In the terminal connection structure of a memory device according to claim 5 or 6, wherein the motion of the seesaw member is absorbed adjusted by such elastic or axial movement of the spring connector, so never applied to the terminals of the direct to the storage device The operation of the seesaw member does not damage the terminal portion due to excessive force.
[Brief description of the drawings]
1A and 1B show a first embodiment of a terminal connection structure of a memory device according to the present invention, in which FIG. 1A is a longitudinal sectional view, and FIG. 1B is a bottom view without a circuit board;
2A and 2B show the operation of a seesaw member, where FIG. 2A is a view showing the posture of a seesaw member before the storage device is inserted into a predetermined position, and FIG. 2B is a view after the storage device is inserted into a predetermined position; It is a figure which shows the attitude | position of this seesaw member.
3A and 3B show a spring connector provided on a seesaw member, in which FIG. 3A is a view showing an example thereof, and FIG. 3B is a longitudinal sectional view showing another example.
FIG. 4 is a view showing a structure of a spring pin.
5A and 5B show an engaging means and a releasing means, wherein FIG. 5A is a cross-sectional view of the main part, and FIG. 5B is a view taken along the arrow A in FIG.
6A and 6B show a second embodiment of the terminal connection structure of the memory device of the present invention, wherein FIG. 6A is a longitudinal sectional view, and FIG. 6B is a bottom view excluding a circuit board.
7A and 7B show a storage device generally called a memory stick, in which FIG. 7A is a longitudinal sectional view, FIG. 7B is a bottom view, and FIG. 7C is a left side view of FIG.
8A and 8B show an example of a terminal connection structure of a conventional memory device, where FIG. 8A is a longitudinal sectional view, FIG. 8B is a bottom view excluding a circuit board, and FIG. 8C is a right side of FIG. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Memory | storage device 12 Terminal part 14 Step part 20 Circuit board 22, 30 Frame 32 Seesaw member 34 Oscillation shaft 36 Spring connector 38, 50 Oscillation spring 40 Spring pin 42 Engagement recessed part 44 Engagement means 46 Release means

Claims

Inserted in parallel to said one side surface of the memory device to one aspect of the memory device sequentially providing a stepped portion increasing the thickness from the terminal portion and the terminal portion from the tip side is insertable sampling to the frame to be inserted A seesaw member is swingably provided on the frame body by a swing shaft orthogonal to the direction, and the stepped portion comes into contact with one end side of the seesaw member and is swung as the storage device is inserted. A spring connector is provided on the other end side of the seesaw member, and the other end side of the seesaw member is elastically biased by a swinging spring in a direction away from the terminal portion of the storage device to be inserted; the seesaw member by the stepped portion due to the insertion is swung against the elastic force of the elastic spring, the terminal connection of the storage device to which one end of the spring connector to the terminal portion is characterized by being configured to elastically contact Elephants.

2. The terminal connection structure for a storage device according to claim 1, wherein the frame body is fixed so that the seesaw member faces the circuit board, and the other end of the spring connector is always in elastic contact with a circuit terminal portion provided on the circuit board. A terminal connection structure of a storage device, characterized in that it is configured as described above.

3. The terminal connection structure for a storage device according to claim 1 or 2, wherein at least one of the stepped portion of the storage device or the contact portion on one end side of the seesaw member is provided with an inclined surface for swinging the seesaw member by a wedge effect. A terminal connection structure of a storage device, characterized by comprising:

3. The storage device terminal connection structure according to claim 1, wherein one end of the spring connector that contacts the terminal portion is a fixed plunger and the other end is a movable plunger, and the spring connector is connected to the seesaw member. A terminal connection structure for a storage device, wherein the terminal connection structure is configured to be movable within a range that does not come out in the axial direction.

3. The terminal connection structure for a storage device according to claim 1, wherein both ends of the spring connector are movable plungers, and the spring connector is fixed to the seesaw member. Construction.