JP2011501636A - 磁気機械システムを使用する無線電力転送 - Google Patents
磁気機械システムを使用する無線電力転送 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
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Abstract
【解決手段】無線電力転送は磁気機械システムを使用して受信される。磁気機械システムの運動は電力に変換される。
Description
したがって、磁石は、好ましくは、400として示される回転楕円体の軸に伴って列をなしている。これは、磁石の角度変位に対して内力が消えるようにする。これは、共振周波数が機械システムパラメータによって単独で規定されるようにする。球体はこれらの有利な要因を有しているが、最適減磁係数が一である場合に1/3と低い減磁係数をまた有し得る。全方向に等配向の軸を仮定すると、円板状アレイも使用することができる。円板は、非常に高いたとえば1に近い磁化係数を有する。
・フェライト中の残留導電率による渦電流損失。ヒステリシスループを一周するエネルギーが速度に依存しないとき、ヒステリシス損失は周波数に比例して増大する。渦電流損失は、ヒステリシスループを広げる影響を有する。
・外部交流磁場HACの強さ
理論は、この上限はHAC’とともに線形に増大することを示すこの上限は磁気機械システムのための重要な設計パラメータである。それはまた、次式の比が一定のままであるかぎり、磁気機械システムを設計するいくらかの自由度が存在することを示す。
・材料特性
・周波数
・外部交流磁場強度
最大有能電力のための方程式は、磁気機械振動子の制限角度変位およびQ値の制約の下で決定される。
磁気機械システムの体積[m3]。
基本磁石の長さ対半径比
Pem:基本磁石の比体積[m3/kg]
vem:Hem:基本磁石の内部磁場強度[Aim]
a:充てん係数(システム体積に対する総磁気体積の比)
QUL:一つまたは複数の機械共振子の無負荷時のQ値。
HAC:外部印加交流磁場[Aim]
Pav_mech:有能機械電力。(負荷への最大電力)
二次側システムパラメータと物理量は次のものを含む。
ねじりばねとインテリアルモーメント(interial moment)と動摩擦(トルクに比例する角速度)とから形成された回転機械システムとの間には類似点がある。この類似点は表1に示される。
Claims (20)
- 磁気機械振動子のアレイであって、各振動子が、磁気対称部と、前記磁気部に取り付けられたねじりサスペンションとを備えているアレイと、
前記アレイの周囲に形成された、また前記振動子に電磁的に連結されて前記振動子との電磁結合によって引き起こされる電流を生成する誘導コイルと、
出力電力の生成するための電流を受信する制御回路とを備えており、
各前記振動子が10m未満のサイズを有しているシステム。 - 前記磁気機械振動子のおのおのがMEMSデバイスである請求項1のシステム。
- 前記ねじりサスペンションが磁場を有している請求項1のシステム。
- 前記ねじりサスペンションが磁場のみならずまた機械ばねを有している請求項1のシステム。
- 前記磁気対称部が径方向に対称的である請求項1の装置。
- 前記磁気対称部は、断面において円形の第一の部分と、前記円形断面エリアよりも薄い第二の範囲とをもつ円板形状をしている請求項5のシステム。
- 前記素子のアレイが円板形状に配置されている請求項1のシステム。
- 磁気素子を備え、それは運動可能に搭載されており、
静磁場の源を備え、前記静磁場は前記磁気素子を特定の回転位置に強要するエリア内に配置され、前記静磁場は、前記磁気素子が印加磁場の影響下で運動することを可能とする程に十分に弱く、
電気生成部を備え、それは、前記静磁場に対する前記磁気素子の前記運動に基づいて電気出力を生成するシステム。 - 前記静磁場は、前記磁気素子の運動に抵抗する単独力である場を備えている請求項8のシステム。
- 前記磁気素子の運動を低減もし抵抗もするばねをさらに備えている請求項9のシステム。
- 前記磁気素子は、それが回転することを可能とする方法で搭載されている請求項8のシステム。
- 前記磁気素子が径方向に対称的である請求項8のシステム。
- 前記磁気素子は、断面において円形の第一の部分と、前記円形断面よりも薄い第二の範囲とをもつ円板形状をしている請求項12のシステム。
- 前記磁気素子は、磁気素子のアレイの一部である請求項12のシステム。
- 前記電気生成部としてコイルをさらに備えており、前記コイルは、前記素子のアレイの前記素子のおのおのに共通している請求項14のシステム。
- 前記素子のアレイが円板形状に配置されている請求項14のシステム。
- 印加電力に基づいて、磁気機械振動子のアレイの各素子に、ねじりサスペンションの力に逆らって磁気素子を運動させることを有し、ここで各前記振動子は10未満のサイズを有しており、
前記振動子との電磁結合によって引き起こされる、電流を単一コイル構造に生成することを有し、さらに、
出力電力を生成するための電流を出力することを有している方法。 - 前記磁気機械振動子のおのおのがMEMSデバイスのアレイである請求項17の方法。
- 前記ねじりサスペンションとして固定磁場を使用することをさらに有している請求項17の方法。
- 前記ねじりサスペンションとして固定磁場と機械ばねの両方を使用することをさらに有している請求項17の方法。
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US97938107P | 2007-10-11 | 2007-10-11 | |
US60/979,381 | 2007-10-11 | ||
PCT/US2008/079681 WO2009049281A2 (en) | 2007-10-11 | 2008-10-13 | Wireless power transfer using magneto mechanical systems |
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JP2013183454A Expired - Fee Related JP5694469B2 (ja) | 2007-10-11 | 2013-09-04 | 磁気機械システムを使用する無線電力転送 |
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US (1) | US8373514B2 (ja) |
EP (1) | EP2208279A4 (ja) |
JP (2) | JP5362733B2 (ja) |
KR (4) | KR101606664B1 (ja) |
CN (2) | CN103904787B (ja) |
WO (1) | WO2009049281A2 (ja) |
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JP2016533149A (ja) * | 2013-07-03 | 2016-10-20 | クアルコム,インコーポレイテッド | 複数の磁気振動子を有するワイヤレス電力送信機 |
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KR101606664B1 (ko) | 2016-03-25 |
CN103904787B (zh) | 2017-06-06 |
CN103904787A (zh) | 2014-07-02 |
CN101842963B (zh) | 2014-05-28 |
US8373514B2 (en) | 2013-02-12 |
KR101312215B1 (ko) | 2013-09-27 |
US20090167449A1 (en) | 2009-07-02 |
JP2014018066A (ja) | 2014-01-30 |
EP2208279A2 (en) | 2010-07-21 |
WO2009049281A3 (en) | 2009-07-23 |
EP2208279A4 (en) | 2016-11-30 |
JP5694469B2 (ja) | 2015-04-01 |
KR101414404B1 (ko) | 2014-07-01 |
WO2009049281A2 (en) | 2009-04-16 |
JP5362733B2 (ja) | 2013-12-11 |
KR20140102778A (ko) | 2014-08-22 |
CN101842963A (zh) | 2010-09-22 |
KR101507265B1 (ko) | 2015-03-30 |
KR20130001333A (ko) | 2013-01-03 |
KR20100063823A (ko) | 2010-06-11 |
KR20140010170A (ko) | 2014-01-23 |
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