JP6433514B2 - 誘導電力伝送における磁気遮蔽 - Google Patents
誘導電力伝送における磁気遮蔽 Download PDFInfo
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- JP6433514B2 JP6433514B2 JP2016572381A JP2016572381A JP6433514B2 JP 6433514 B2 JP6433514 B2 JP 6433514B2 JP 2016572381 A JP2016572381 A JP 2016572381A JP 2016572381 A JP2016572381 A JP 2016572381A JP 6433514 B2 JP6433514 B2 JP 6433514B2
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Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
-
- 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
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F2027/348—Preventing eddy currents
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Regulation Of General Use Transformers (AREA)
- Measuring Magnetic Variables (AREA)
Description
本特許協力条約特許出願は、「Magnetic Shielding in Inductive Power Transfer」と題し、2014年3月24日に出願された米国仮特許出願第61/969,337号、及び「Inductive Power Transmission Housing Shielding」と題し、2014年8月13日に出願された米国仮特許出願第62/036,685号に対する優先権を主張し、それらの開示の全てが参照により本明細書に組み込まれる。
Claims (16)
- 第1の電子デバイスであって、
湾曲した第1の接続面と、
前記第1の接続面に隣接して配置され、前記湾曲した第1の接続面に面する前面、前記湾曲した第1の接続面に背を向ける後面、及び前記前面と前記後面との間にそれぞれ延びる外側面と内側面を有する誘導電力伝送の受信コイルと、
前記第1の接続面に隣接して配置された第1の磁気要素と、
前記誘導電力伝送の受信コイルと前記第1の磁気要素との間に少なくとも部分的に配置されていて、
前記誘導電力伝送の受信コイルの前記後面と前記第1の電子デバイスの前記湾曲した第1の接続面との間の距離によって定まる第1の長さだけ延びて、前記誘導電力伝送の受信コイルの前記内側面を覆う第1の部分と、
前記誘導電力伝送の受信コイルの前記後面と前記第1の電子デバイスの前記湾曲した第1の接続面との間の距離によって定まり且つ前記第1の長さとは異なる第2の長さだけ延びて、前記誘導電力伝送の受信コイルの前記外側面を覆う第2の部分と、を含む、
シールドと、を備え、
前記シールドが、前記誘導電力伝送の受信コイルにより前記第1の磁気要素に生じる渦電流を減らすように構成され、
前記第1の磁気要素が、第2の電子デバイスの第2の磁気要素に結合して、前記第1の電子デバイスと前記第2の電子デバイスとの間の整列位置を維持し、
前記誘導電力伝送の受信コイルが、前記第1の電子デバイス及び前記第2の電子デバイスが前記整列位置にあるときに、前記第2の電子デバイスの誘導電力伝送の送信コイルから電力を誘導受信するように構成される、第1の電子デバイス。 - 前記第1の磁気要素上の非導電性及び透磁性の被覆を更に備える、請求項1に記載の第1の電子デバイス。
- 前記非導電性及び透磁性の被覆が、ポリマー、前記ポリマーと導電性繊維の組み合わせ、又は前記ポリマーと導電性粒子の組み合わせのうちの少なくとも1つで形成される、請求項2に記載の第1の電子デバイス。
- 前記シールドが前記第1の磁気要素に結合される、請求項1に記載の第1の電子デバイス。
- 前記第1の磁気要素と前記誘導電力伝送の受信コイルとの間に配置された前記シールドの前記部分が、前記シールドと前記第1の磁気要素との間の隙間を画定する、請求項4に記載の第1の電子デバイス。
- 前記シールドが、非導電性材料、軟磁性材料、強磁性材料、セラミック材料、結晶性材料、又は鉄コバルトのうちの少なくとも1つで形成される、請求項4に記載の第1の電子デバイス。
- 前記シールドが、前記第1の磁気要素の磁界を前記第1の接続面に向けて方向付ける、
請求項4に記載の第1の電子デバイス。 - 前記シールドの少なくとも一部分が、非導電性被覆で覆われる、請求項4に記載の第1の電子デバイス。
- 前記第1の磁気要素と前記誘導電力伝送の受信コイルとの間の間隔が、前記渦電流を減らすように構成される、請求項1に記載の第1の電子デバイス。
- 誘導電力伝送の磁気遮蔽のためのシステムであって、前記システムが、
第1の電子デバイスであって、
第1の接続面と、
前記第1の接続面に隣接して配置される誘導電力伝送の受信コイルと、
前記第1の接続面に隣接して配置された第1の磁気要素と、
を含む第1の電子デバイスと、
第2の電子デバイスであって、
湾曲した第2の接続面と、
前記第2の接続面に隣接して配置され、前記湾曲した第1の接続面に面する前面、前記湾曲した第1の接続面に背を向ける後面、及び前記前面と前記後面との間にそれぞれ延びる外側面と内側面を有する誘導電力伝送の送信コイルと、
前記第2の接続面に隣接して配置された第2の磁気要素と、
を含む第2の電子デバイスと、を備え、
前記誘導電力送信コイルが、前記誘導電力伝送の受信コイルに電力を誘導送信し、
前記誘導電力伝送の受信コイルが、前記誘導電力受信コイルに電力を誘導送信する結果として前記第1の磁気要素に生じる渦電流を減らすように構成されるシールドを含み、
前記シールドは、
前記誘導電力伝送の受信コイルの前記後面と前記第1の電子デバイスの前記湾曲した第1の接続面との間の距離によって定まる第1の長さだけ延びて、前記誘導電力伝送の受信コイルの前記内側面を覆う第1の部分と、
前記誘導電力伝送の受信コイルの前記後面と前記第1の電子デバイスの前記湾曲した第1の接続面との間の距離によって定まり且つ前記第1の長さとは異なる第2の長さだけ延びて、前記誘導電力伝送の受信コイルの前記外側面を覆う第2の部分と、を含む、
システム。 - 前記シールドが、前記誘導電力伝送の受信コイルに結合され、前記渦電流を減らすように構成される、請求項10に記載のシステム。
- 前記シールドがファラデーケージである、請求項11に記載のシステム。
- 前記シールドが、結晶性材料、セラミック材料、軟磁性材料、強磁性材料、又は鉄シリコンのうちの少なくとも1つで形成される、請求項11に記載のシステム。
- 前記シールドが、前記誘導電力伝送の受信コイルと前記第1の磁気要素との間に少なくとも部分的に配置される、請求項11に記載のシステム。
- 前記第1の接続面が非導電性材料で形成される、請求項10に記載のシステム。
- 前記第2の磁気要素又は前記誘導電力伝送の受信コイルのうちの少なくとも一方が、前記誘導電力伝送の受信コイルにより前記第2の磁気要素に生じる渦電流を減らすように構成されるか、あるいは、
前記第1の磁気要素又は前記誘導電力伝送の送信コイルのうちの少なくとも一方が、前記誘導電力伝送の送信コイルにより前記第1の磁気要素に生じる渦電流を減らすように構成されるか、のうちの少なくとも一方である、請求項10に記載のシステム。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201461969337P | 2014-03-24 | 2014-03-24 | |
US61/969,337 | 2014-03-24 | ||
US201462036685P | 2014-08-13 | 2014-08-13 | |
US62/036,685 | 2014-08-13 | ||
PCT/US2015/022222 WO2015148489A2 (en) | 2014-03-24 | 2015-03-24 | Magnetic shielding in inductive power transfer |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2018161574A Division JP2018191515A (ja) | 2014-03-24 | 2018-08-30 | 誘導電力伝送における磁気遮蔽 |
Publications (2)
Publication Number | Publication Date |
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JP2017517241A JP2017517241A (ja) | 2017-06-22 |
JP6433514B2 true JP6433514B2 (ja) | 2018-12-05 |
Family
ID=53059394
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JP2016572381A Active JP6433514B2 (ja) | 2014-03-24 | 2015-03-24 | 誘導電力伝送における磁気遮蔽 |
JP2018161574A Pending JP2018191515A (ja) | 2014-03-24 | 2018-08-30 | 誘導電力伝送における磁気遮蔽 |
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JP2018161574A Pending JP2018191515A (ja) | 2014-03-24 | 2018-08-30 | 誘導電力伝送における磁気遮蔽 |
Country Status (7)
Country | Link |
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US (1) | US9852844B2 (ja) |
EP (2) | EP3528267B1 (ja) |
JP (2) | JP6433514B2 (ja) |
KR (2) | KR101962319B1 (ja) |
CN (2) | CN106165036B (ja) |
AU (1) | AU2015236298B2 (ja) |
WO (1) | WO2015148489A2 (ja) |
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