JP2012529720A - 磁気アタッチメントを有する電子デバイス - Google Patents
磁気アタッチメントを有する電子デバイス Download PDFInfo
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Abstract
Description
式中、tは側面102aにおける筐体102の厚さであり、x0は側面102aの内部から磁気素子までの距離である。
式中、sは側面212aにおける筐体212の厚さであり、x1は内部離間距離である。
B/B0 = f(xsep)・・・式(3b)
式中、Ltotalは磁気素子の合計の表面積であり、Bは合計の磁束密度(B208+B112)であり、xsepは磁気素子の間の離間距離であり、B0は磁性領域の表面における磁束密度である。
領域214における磁束密度B112が増加した結果、アクセサリデバイス200と電子デバイス100との間の有効な磁気吸引力Fnetは実質的に増加される。更に有効な吸引力Fnetが磁束密度B(B208+B112)に伴って変化し且つ磁束密度Bが一般に離間距離に反比例して変化する(すなわち、式3(b))ため、電子デバイス100及びアクセサリデバイス200が互いに近づき且つ離間距離xsepが電子デバイス100及びアクセサリデバイス200の物理的な接触と整合性のある制限値に減少すると、有効な吸引力Fnetは相対的に短期間に急激に増加する可能性がある。この有効な吸引力Fnetの急激な増加により、デバイスは迅速に嵌合する。これは、電子デバイス100が係合面218に沿ってアクセサリデバイス200に磁気接続された形態で連携システム300を示す図7Cに示されるように「定位置への嵌合」と呼ばれる。尚、代表的な一実施形態において、デバイスアタッチメント機構108の磁気素子はN52磁石であってもよく、その一方でアタッチメント機構216の磁気素子はN35磁石であってもよい。更に、有効な磁気吸引力は約10ニュートンから少なくとも20ニュートンであってもよく、デバイスアタッチメント機構108を活性化するのに約3ニュートン必要である。
式中、Fnetiはn個の構成要素の各々に対する有効な磁気吸引力である。一実施形態において、有効な磁気吸引力Fnetiは、磁界112及び磁界208が交差する係合面218の部分にほぼ垂直である。
式中、kは保持機構504のバネ定数であり、Δxは平衡状態からのバネ変位である。
しかし、磁気素子502の磁界特性に「マッチング」する特性を有する磁界を生成する別の磁気アタッチメント機構のみが磁気アタッチメント機構500を活性化できる。従って、図9Cに示すように、筐体102の外面に配置された(すなわち、x=x0+t)磁気活性材料(スチール等)で形成されたオブジェクト506が存在することにより、磁気アタッチメント機構500を活性化できない。特に一実施形態において、オブジェクト506と磁気アタッチメント機構500との間に生成された有効な磁気吸引力は2NT未満であり、起動力FACTは約3NTである。
尚、起動力FACTは式(6)を介して保持力Fretainと関連する。このように、関数FNET(L)の観点での式(6)及び式(8)は、バネ定数kに対する適切な値を判定するために使用される。
筐体を有する電子デバイスであって、筐体内の第1の側壁に配設され、不活性状態において第1の側壁の外面にある磁気感知デバイスに実質的に影響を及ぼさない第1の磁気面を外面に提供するように構成された二状態磁気素子であって、活性状態においては電子デバイスとアクセサリユニットの第1の部分における第1の磁気素子との間で磁気接続を形成するためにピーク磁気吸引力を生成するのに適した第2の磁気面を第1の側壁の外面に提供する二状態磁気素子と、保持力を提供することにより、二状態磁気素子を不活性状態に維持するように構成され、筐体に結合された状態維持手段とを備え、第1のオフピーク磁気吸引力の値は、ピーク磁気吸引力の値の少なくとも半分の値を有する。二状態磁気素子は、第1の線に沿って第1の相対サイズの順番で互いに隣接して配置され、磁気極性の第1の極性パターンに従って配置された第1の複数の極性磁気コンポーネントと、第1の線に沿って第2の相対サイズの順番で互いに隣接して配置され、磁気極性の第2の極性パターンに従って配置された第2の複数の極性磁気コンポーネントとを備え、第1のサイズの順番及び第2のサイズの順番、並びに第1の極性パターン及び第2の極性パターンは、互いに補完し合う。第1の極性パターンは少なくとも{P1,P2,P1}であり、第2の極性パターンは少なくとも{P2,P1,P2}であり、P1は第1の極性であり、P2は逆の極性であり、第1の相対サイズの順番は少なくとも{2L,1L,1L}であり、第2の相対サイズの順番は少なくとも{1L,1L,2L}であり、1Lは有効な単位磁石長に対応し、2Lは有効な単位磁石長の約2倍に対応する。
アクセサリユニットの第1の部分における第1の磁気素子が、第1の複数の磁気コンポーネント及び第2の複数の磁気コンポーネントのうち対応する一方と整列した場合にのみ、二状態磁気素子は不活性状態から活性状態に変化し、二状態磁気素子が不活性状態から活性状態に変化した場合、二状態磁気素子は、保持力に逆らって第1の側壁に向かって距離Δxを第1の位置から第2の位置へ移動する。状態維持手段は、バネ定数kを有するバネを含み、保持力は、距離Δx及びバネ定数kに直接関係する。
アクセサリユニットの第1の部分における第1の磁気素子と、二状態磁気素子との間で、保持力よりも大きく、第1の位置から第1の壁に向かって二状態磁気素子を距離Δx移動させる起動力が生成された場合に、二状態磁気素子は活性化される。起動力は、オフピーク磁気吸引力以上で、かつ、ピーク磁気吸引力よりも小さい値を有する。二状態磁気素子から離れて配置され、アクセサリユニットの第2の部分を電子デバイスに固着するために二状態磁気素子と協働する第2の磁気素子を更に備える。第2の磁気素子は複数の磁気素子を含み、アクセサリユニットの第2の部分を電子装置に固着するために、該複数の磁気素子の大部分はアクセサリユニットの第2の部分における対応する磁気素子を磁気的に吸引する。
筐体の上側部分の開口部内に配設されたディスプレイ装置と、ディスプレイ装置の上面の保護層と、ディスプレイ装置の近傍に配置されたセンサとを更に備え、第2の磁気素子は、ディスプレイ装置の下に配設され、センサはディスプレイ装置の保護層との関連でアクセサリユニットの存在を検出するように構成されている。閉構成において、アクセサリユニットは保護層を完全に覆っており、閉構成において、ディスプレイ装置が視覚的コンテンツを提供できないようにするために、センサは電子装置にディスプレイ装置を不作動化させる。
アクセサリユニットが保護層を部分的に覆っている場合、アクセサリユニットによって覆われていないディスプレイ装置の部分でのみ視覚的コンテンツを提供するように該ディスプレイ装置を構成するために、電子装置はディスプレイ装置を部分的に不作動化する。
電子装置の製造方法であって、側壁を有する筐体を提供する工程と、筐体の第1の部分であって、かつ、該筐体の第1の側壁の近傍に保持機構を取り付ける工程であって、保持機構はバネ係数kを有するバネであり、保持力は距離Δxとバネ係数kとに直接関連する、工程と、第1の磁気素子を保持機構に取り付ける工程とを備え、保持機構は、不活性状態において、筐体内の第1の位置の磁気素子を第1の側壁から離れるように維持する保持力を提供し、活性状態では、第1の磁気素子が保持力に逆らって距離Δxを第1の側壁に向かって移動し、第1の磁気素子は、第1の側壁を妨害せず、活性状態では、第1の磁気素子が第1の側壁の外面に磁気面を提供し、磁気面は、電子装置と、アクセサリユニットの第1の部分の第1の磁気素子との間で磁気吸引を行わせるために、ピーク磁気吸引力を生成するのに適しており、第1のオフピーク磁気吸引力は、ピーク磁気吸引力の少なくとも半分の値を有する。保持力よりも大きい起動力を第1の磁気素子に適用する工程であって、機動力により第1の磁気素子は保持力に逆らって距離Δxを第1の側壁に向かって移動する、工程を更に備え、第1の磁気素子は、係合面に対して垂直に適用されるピーク磁気吸引力により該係合面において第1の側壁にアクセサリユニットを磁気的に吸着させるのに適した第1の側壁を通って広がる磁気面を生成する。第1の複数の磁気素子を、第1の線に沿って第1の相対サイズの順番で互いに隣接するように磁気極性の第1の極性パターンに従って配置し、第2の複数の磁気素子を、第1の線に沿って第2の相対サイズの順番で互いに隣接するように磁気極性の第2の極性パターンに従って配置することで第1の磁気素子を形成する工程を更に備え、第1のサイズの順番及び第2のサイズの順番、並びに第1の極性パターン及び第2の極性パターンは、互いに補完し合う。第1の極性パターンは少なくとも{P1,P2,P1}であり、第2の極性パターンは少なくとも{P2,P1,P2}であり、P1は第1の極性であり、P2は逆の極性であり、第1の相対サイズの順番は少なくとも{2L,1L,1L}であり、第2の相対サイズの順番は少なくとも{1L,1L,2L}であり、1Lは有効な単位磁石長に対応し、2Lは有効な単位磁石長の約2倍に対応する。第1の磁気素子から離れて配置され、アクセサリユニットの第2の部分を電子デバイスに固着するために第1の磁気素子と協働する第2の磁気素子を更に備え、第2の磁気素子は複数の磁気素子を含み、アクセサリユニットの第2の部分を電子装置に固着するために、該複数の磁気素子の大部分はアクセサリユニットの第2の部分における対応する磁気素子を磁気的に吸引する。
Claims (15)
- 筐体を有する電子デバイスであって、
前記筐体内の第1の側壁に配設され、不活性状態において前記第1の側壁の外面にある磁気感知デバイスに実質的に影響を及ぼさない第1の磁気面を前記外面に提供するように構成された二状態磁気素子であって、活性状態においては前記電子デバイスとアクセサリユニットの第1の部分との間で磁気接続を形成するのに適した第2の磁気面を前記第1の側壁の前記外面に提供する二状態磁気素子と、
保持力を提供することにより前記第1の状態で前記二状態磁気素子を維持するように構成され、前記筐体に結合された状態維持手段と
を備えることを特徴とする電子デバイス。 - 前記二状態磁気素子は、
第1の線に沿って第1の相対サイズの順番で互いに隣接して配置され、磁気極性が交互に入れ替わる第1の極性パターンに従って配置された第1の複数の交番極性磁気コンポーネントと、
前記第1の線に沿って第2の相対サイズの順番で互いに隣接して配置され、磁気極性が交互に入れ替わる第2の極性パターンに従って配置された第2の複数の交番極性磁気コンポーネントと
を備え、
前記第1のサイズの順番及び前記第2のサイズの順番、並びに前記第1の極性パターン及び前記第2の極性パターンは、互いに補完し合うことを特徴とする請求項1に記載の電子デバイス。 - 前記第1の極性パターンは{P1,P2,P1}であり、前記第2の極性パターンは{P2,P1,P2}であり、P1は第1の極性であり、P2は逆の極性であることを特徴とする請求項2に記載の電子デバイス。
- 前記第1の相対サイズの順番は{2L,1L,1L}であり、前記第2の相対サイズの順番は{1L,1L,2L}であり、1Lは有効な単位磁石長に対応し、2Lは前記有効な単位磁石長の約2倍に対応することを特徴とする請求項2に記載の電子デバイス。
- 前記二状態磁気素子が不活性状態から前記活性状態に変化した場合、前記二状態磁気素子は、前記保持力に逆らって前記第1の側壁に向かって距離Δxを移動することを特徴とする請求項1に記載の電子デバイス。
- 前記状態維持手段は、バネ定数kを有するバネを含むことを特徴とする請求項5に記載の電子デバイス。
- 前記保持力は、前記距離Δx及び前記バネ定数kに直接関係することを特徴とする請求項6に記載の電子デバイス。
- 前記二状態磁気素子から離れて配置され、前記アクセサリユニットの第2の部分を前記電子デバイスに固着するために二状態磁気素子と協働する第2の磁気素子を更に備えることを特徴とする請求項1に記載の電子デバイス。
- 前記第2の磁気素子は、
前記アクセサリユニットの前記第2の部分を前記電子デバイスに固着するために、全ての磁気素子が前記アクセサリの対応する磁気素子を磁気吸引するところの複数の交番極性磁気素子を備えることを特徴とする請求項8に記載の電子デバイス。 - 前記筐体の上側部分の開口部内に配設されたディスプレイと、
前記ディスプレイの上面の保護層と
を更に備えることを特徴とする請求項9に記載の電子デバイス。 - 前記第2の磁気素子は、前記ディスプレイの下に配設されることを特徴とする請求項10に記載の電子デバイス。
- 前記電子デバイスは、前記ディスプレイの近傍に配置されたセンサを更に備えることを特徴とする請求項10又は11に記載の電子デバイス。
- 前記センサは、閉構成において、前記アクセサリユニットの前記第2の部分が第2の磁気素子に磁気接続された場合に、前記アクセサリユニットの磁気素子を検出するように構成されることを特徴とする請求項12に記載の電子デバイス。
- 前記閉構成において、前記センサは、前記電子デバイスの現在の動作状態を変更させることを特徴とする請求項13に記載の電子デバイス。
- 前記センサは、前記閉構成において前記ディスプレイをOFFにするために、前記電子デバイスの前記動作状態を変更させることを特徴とする請求項14に記載の電子デバイス。
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GB2482931A (en) | 2012-02-22 |
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TW201218607A (en) | 2012-05-01 |
CA2795588C (en) | 2013-11-05 |
GB2482931B (en) | 2015-02-25 |
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KR101350567B1 (ko) | 2014-01-13 |
US20120069540A1 (en) | 2012-03-22 |
MX2011002929A (es) | 2012-04-19 |
CA2733236C (en) | 2013-03-12 |
JP5386642B2 (ja) | 2014-01-15 |
TWM428394U (en) | 2012-05-01 |
KR101190466B1 (ko) | 2012-10-11 |
KR20120037905A (ko) | 2012-04-20 |
SG179549A1 (en) | 2012-05-30 |
CA2733236A1 (en) | 2011-09-06 |
WO2012036714A1 (en) | 2012-03-22 |
US8143983B1 (en) | 2012-03-27 |
EP2431836A2 (en) | 2012-03-21 |
US20120069503A1 (en) | 2012-03-22 |
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