JP2009141367A - 永久磁石を含む誘導装置及び関連方法 - Google Patents
永久磁石を含む誘導装置及び関連方法 Download PDFInfo
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- JP2009141367A JP2009141367A JP2008311330A JP2008311330A JP2009141367A JP 2009141367 A JP2009141367 A JP 2009141367A JP 2008311330 A JP2008311330 A JP 2008311330A JP 2008311330 A JP2008311330 A JP 2008311330A JP 2009141367 A JP2009141367 A JP 2009141367A
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- 238000000034 method Methods 0.000 title claims description 14
- 230000001939 inductive effect Effects 0.000 title 1
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 18
- 230000005293 ferrimagnetic effect Effects 0.000 claims abstract description 10
- 238000007747 plating Methods 0.000 claims abstract description 5
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 230000005291 magnetic effect Effects 0.000 abstract description 30
- 238000004891 communication Methods 0.000 abstract description 8
- 239000011888 foil Substances 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000011162 core material Substances 0.000 description 53
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000006698 induction Effects 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000002902 ferrimagnetic material Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000005381 magnetic domain Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000005330 Barkhausen effect Effects 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101000703343 Escherichia coli (strain K12) Putative peptide chain release factor homolog Proteins 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
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- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
- H01F17/062—Toroidal core with turns of coil around it
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F2003/103—Magnetic circuits with permanent magnets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
より低い損失、より高いQ値及び効率を持った誘導器の必要性が存在する。
【解決手段】
無線周波(RF)誘導器は、非導電性且つフェリ磁性で、環状形を有するコア、及びコア上のコイル巻線を含む。少なくとも1の永久磁石体は、コアの内部の固定位置に位置し、少なくとも1の永久磁石体上に導電RF遮蔽層が存在する。コアは、例えばフェライトであってもよい。導電RF遮蔽層は、例えば、導電メッキ層又は、永久磁石体を取り囲む金属箔であってもよい。永久磁石からの磁界は、損失を減らすために誘導器コアに印加され、永久磁石はRF磁界を避けるために導電遮蔽層に含まれてもよい。誘導器は小さく作られ、増加したQ値及びその結果の効率を持つ。RF誘導器は、RF通信回路、例えばアンテナ結合器に応用可能である。
【選択図】 図1
Description
Sweep),H.A.Schade, 米海軍ヨーロッパ派遣技術任務、Tech Rep. 90-45 AD-47746, 1945年5月)を含むドイツの開発で、第2次世界大戦中戦略物質であった。
はコア12の少なくとも一部を取り巻く。永久磁石体18は、コア12の内部14内の固定位置にある。導電RF遮蔽層20は、永久磁石体18にある。
フィルター間の唯一の相違点は、永久磁石体18への包含と巻線コイル16における巻数の増加にある。表1に更に、従来装置と本発明の動作パラメータを詳述する。
本発明によりなされた実施の促進は勿論、永久磁石体18が適用される特定のフェリ磁性誘導体設計に依存し変化する。より大きいコアが電力操作用に優先するので、その実施例は磁石の導入に先だって少ない巻数の相対的に大きいコアを用いた。両方の場合でコンデンサーは、損失が無視できる銀メッキされた雲母タイプであったので、フィルターのQ値は大体誘導器のQ値であった。
L=kμN2
ここでkは、与えられたコアのインダクタンス指数で、しばしば実験的に決められる。一定のインダクタンスでは、
μ=kL/N2
となる。
磁区(フェリ磁性材において類似的に磁気的に方向性のある原子)の大きさの急速な変化により起こる磁区グルーピング又はバルクハウゼン効果に関係する。一般的に、誘導器コア材は、より直線性を与えるがより直流バイアスされにくい粉末のペンタカルボニル鉄タイプのコア、及びより非直線的であるが効率促進のためより容易に直流バイアス可能なフェライトを含む。粉末の鉄コアは一般的に、フェライトより飽和されにくい。
12、12’ コア
14,14’ 内部
16、16’ 巻線コイル
18,18’ 永久磁石体
20,20’ 導電RF遮蔽層
A 磁気軸
Claims (10)
- 無線周波(RF)誘導器であって:
内部を定める環状形を有する非導電性でフェリ磁性のコア;
少なくともコアの一部を取り巻く巻線コイル;
コアの内部の固定位置に位置する少なくとも1の永久磁石体;及び
少なくとも1の永久磁石体に存在する導電RF遮蔽層
を含む無線周波(RF)誘導器。 - コアがフェライトを含む請求項1の誘導器。
- コアがニッケル亜鉛フェライトを含む請求項1の誘導器。
- 導電RF遮蔽層が少なくとも1の永久磁石体を取り巻く導電メッキ層を含む請求項1の誘導器。
- 少なくとも1の永久磁石体が円筒永久磁石を含む請求項1の誘導器。
- 無線周波(RF)誘導器を作成するための方法であって:
内部を定める環状形を有する非導電性でフェリ磁性のコアを提供するステップ;
少なくともコアの一部を取り巻く巻線コイルを配置するステップ;
コアの内部の固定位置に少なくとも1の永久磁石体を配置するステップ;及び
少なくとも1の永久磁石体に導電RF遮蔽層を提供するステップ
を含む方法。 - コアを提供することがフェライトコアを提供することを含む請求項6の方法。
- コアを提供することがニッケル亜鉛フェライトコアを提供することを含む請求項6の方法。
- 導電RF遮蔽層を提供することが少なくとも1の永久磁石体を取り巻く導電メッキ層を提供することを含む請求項6の方法。
- 少なくとも1の永久磁石は、円筒形永久磁石を含む請求項6の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/951,673 | 2007-12-06 | ||
US11/951,673 US7940151B2 (en) | 2007-12-06 | 2007-12-06 | Inductive device including permanent magnet and associated methods |
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JP2009141367A true JP2009141367A (ja) | 2009-06-25 |
JP5372477B2 JP5372477B2 (ja) | 2013-12-18 |
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JP2008311330A Expired - Fee Related JP5372477B2 (ja) | 2007-12-06 | 2008-12-05 | 永久磁石を含む誘導装置及び関連方法 |
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US (1) | US7940151B2 (ja) |
EP (1) | EP2068330B1 (ja) |
JP (1) | JP5372477B2 (ja) |
CA (1) | CA2645771C (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016149891A (ja) * | 2015-02-13 | 2016-08-18 | 徐 夫子HSU Fu−Tzu | 磁電気装置 |
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KR20090106492A (ko) | 2006-12-01 | 2009-10-09 | 티티아이 엘뷰 가부시키가이샤 | 경피성 전달 장치와 같은 장치에 전력을 제공하거나 제어하기 위한 시스템, 장치, 및 방법 |
GB201115005D0 (en) * | 2011-08-31 | 2011-10-12 | Univ Cardiff | Fault current limiter |
US9004170B2 (en) | 2012-04-26 | 2015-04-14 | Harris Corporation | System for heating a hydrocarbon resource in a subterranean formation including a transformer and related methods |
US9004171B2 (en) | 2012-04-26 | 2015-04-14 | Harris Corporation | System for heating a hydrocarbon resource in a subterranean formation including a magnetic amplifier and related methods |
US9267366B2 (en) | 2013-03-07 | 2016-02-23 | Harris Corporation | Apparatus for heating hydrocarbon resources with magnetic radiator and related methods |
US9422798B2 (en) | 2013-07-03 | 2016-08-23 | Harris Corporation | Hydrocarbon resource heating apparatus including ferromagnetic transmission line and related methods |
EP3054592A1 (en) * | 2015-02-09 | 2016-08-10 | Fu-Tzu Hsu | Magnetoelectric device capable of storing usable electrical energy |
CN111408053B (zh) * | 2020-04-17 | 2024-04-05 | 刘建平 | 一种动静磁场旋磁机及玉石联体 |
CN112820531B (zh) * | 2021-02-02 | 2022-06-24 | 贵州广播电视大学(贵州职业技术学院) | 一种带环形槽基座与永磁体的粘接装置及方法 |
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JP2005317623A (ja) * | 2004-04-27 | 2005-11-10 | Fuji Electric Holdings Co Ltd | 直流リアクトル |
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-
2007
- 2007-12-06 US US11/951,673 patent/US7940151B2/en active Active
-
2008
- 2008-12-04 CA CA2645771A patent/CA2645771C/en not_active Expired - Fee Related
- 2008-12-05 EP EP08021187A patent/EP2068330B1/en active Active
- 2008-12-05 JP JP2008311330A patent/JP5372477B2/ja not_active Expired - Fee Related
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JPH02172209A (ja) * | 1988-12-24 | 1990-07-03 | Tokin Corp | インダクタンス装置 |
JPH09308150A (ja) * | 1996-05-10 | 1997-11-28 | Toshiba Corp | 永久磁石回転電機 |
JPH11186072A (ja) * | 1997-12-17 | 1999-07-09 | Urano Ryoichi | 変圧比連続可変型変圧器 |
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JP2016149891A (ja) * | 2015-02-13 | 2016-08-18 | 徐 夫子HSU Fu−Tzu | 磁電気装置 |
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Publication number | Publication date |
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CA2645771C (en) | 2012-11-27 |
EP2068330B1 (en) | 2012-11-14 |
US7940151B2 (en) | 2011-05-10 |
US20090146772A1 (en) | 2009-06-11 |
EP2068330A2 (en) | 2009-06-10 |
EP2068330A3 (en) | 2011-12-07 |
JP5372477B2 (ja) | 2013-12-18 |
CA2645771A1 (en) | 2009-06-06 |
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