JP2010239838A - 送電装置 - Google Patents
送電装置 Download PDFInfo
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- JP2010239838A JP2010239838A JP2009087596A JP2009087596A JP2010239838A JP 2010239838 A JP2010239838 A JP 2010239838A JP 2009087596 A JP2009087596 A JP 2009087596A JP 2009087596 A JP2009087596 A JP 2009087596A JP 2010239838 A JP2010239838 A JP 2010239838A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
- G01R33/3642—Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification
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Abstract
【解決手段】磁界共鳴によって受電装置5a,5bに送電する送電コイル25に加え、送電コイル25と磁界共鳴して受け取ったエネルギーを電力として送電コイル25に還流する補助受電装置3を設ける。補助受電装置3は、送電コイル25が送出したエネルギーのうち受電装置5a,5bで受け取ることができなかった分の一部を磁界共鳴によって回収し、電力還流経路32aを介して送電コイル25に戻す。
【選択図】図1
Description
2,2a 主送電装置
3,3a 補助受電装置
5a,5b 受電装置
21 送電制御部
22 交流電源
23 電源切替回路
24 電力供給コイル
25 送電コイル
26 センサ
31,51 受電コイル
32,52電力取出コイル
32a 電力還流経路
33 負荷回路
41 送電装置検知部
42 周波数掃引処理部
43 電源駆動部
61,71 バッテリー
62,72 送信駆動部
63,73 動作制御部
Claims (5)
- 電力を磁界共鳴によって磁界エネルギーとして外部に送出する第1磁界共鳴コイルと、
前記第1磁界共鳴コイルに対して少なくとも電力の供給を行なう第1電力送受信部と、
前記第1磁界共鳴コイルと磁界共鳴して前記磁界エネルギーを受け取る第2磁界共鳴コイルと、
前記第2磁界共鳴コイルに対して少なくとも前記電力の受け取りを行なう第2電力送受信部と、
主電源と、
前記第2電力送受信部が受け取った電力と、前記主電源が供給する電力とを選択もしくは組み合わせて前記第1電力送受信部に供給する電源管理部と
を備えたことを特徴とする送電装置。 - 前記第2電力送受信部と前記電源管理部とを電気的に接続する電力還流経路をさらに備えたことを特徴とする請求項1に記載の送電装置。
- 前記第1磁界共鳴コイルから前記第2磁界共鳴コイルに磁気エネルギーを送る主送電動作と、前記第2磁界共鳴コイルから前記第1磁界共鳴コイルに磁気エネルギーを送る還流動作とを切り替える動作切替部をさらに備え、
前記第2電力送受信部は、前記主送電動作時で受け取った電力を前記還流動作時で前記第2磁界共鳴コイルに供給し、
前記第1電力送受信部は、前記還流動作時に前記第1磁界共鳴コイルから電力を受け取り、
前記電源管理部は、前記主電源が供給する電力と前記還流動作時に受け取った電力とを選択もしくは組み合わせて前記主送電動作時に使用することを特徴とする請求項1に記載の送電装置。 - 前記第1電力送受信部および前記第2電力送受信部は、電磁誘導によって電力の供給もしくは取出しを行なう電磁誘導コイルであることを特徴とする請求項1〜3のいずれか一つに記載の送電装置。
- 前記磁界共鳴の効率がピークとなるピーク駆動周波数が複数存在する場合に、低周波側の駆動周波数で前記磁界共鳴を発生させる駆動部をさらに備えたことを特徴とする請求項1〜4のいずれか一つに記載の送電装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009087596A JP5417941B2 (ja) | 2009-03-31 | 2009-03-31 | 送電装置 |
US12/723,865 US8542018B2 (en) | 2009-03-31 | 2010-03-15 | Power transmitting apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009087596A JP5417941B2 (ja) | 2009-03-31 | 2009-03-31 | 送電装置 |
Publications (2)
Publication Number | Publication Date |
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JP2010239838A true JP2010239838A (ja) | 2010-10-21 |
JP5417941B2 JP5417941B2 (ja) | 2014-02-19 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2009087596A Expired - Fee Related JP5417941B2 (ja) | 2009-03-31 | 2009-03-31 | 送電装置 |
Country Status (2)
Country | Link |
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US (1) | US8542018B2 (ja) |
JP (1) | JP5417941B2 (ja) |
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