WO2009044514A1 - コイル部品 - Google Patents

コイル部品 Download PDF

Info

Publication number
WO2009044514A1
WO2009044514A1 PCT/JP2008/002651 JP2008002651W WO2009044514A1 WO 2009044514 A1 WO2009044514 A1 WO 2009044514A1 JP 2008002651 W JP2008002651 W JP 2008002651W WO 2009044514 A1 WO2009044514 A1 WO 2009044514A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil component
axial direction
initial permeability
winding
conductor
Prior art date
Application number
PCT/JP2008/002651
Other languages
English (en)
French (fr)
Inventor
Hideto Mikami
Tomotsugu Kato
Shin Noguchi
Original Assignee
Hitachi Metals, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2008097353A external-priority patent/JP2009105365A/ja
Application filed by Hitachi Metals, Ltd. filed Critical Hitachi Metals, Ltd.
Publication of WO2009044514A1 publication Critical patent/WO2009044514A1/ja

Links

Classifications

    • 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
    • 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
    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
    • H01F1/348—Hexaferrites with decreased hardness or anisotropy, i.e. with increased permeability in the microwave (GHz) range, e.g. having a hexagonal crystallographic structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F2017/0093—Common mode choke coil

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

　本発明にかかるコイル部材は、高周波帯域において優れた特性を発揮する。本発明のコイル部品を構成する六方晶フェライトコアは、一対の導体が巻回される巻線部を有しており、当該巻線部の導体の巻回軸方向の初透磁率が、巻回軸方向に垂直な少なくとも一の方向の初透磁率よりも大きい。六方晶フェライトは、ｃ軸に垂直な方向を磁化容易面とする磁気異方性を有するため、配向させて初透磁率を高め、高いインダクタンスを得ることが可能である。初透磁率が大きい方向を導体の巻回軸方向とする上記構成をコモンモードフィルタに適用すれば、高周波帯域におけるコモンモードノイズ減衰量を改善することができる。
PCT/JP2008/002651 2007-10-03 2008-09-25 コイル部品 WO2009044514A1 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-260230 2007-10-03
JP2007260230 2007-10-03
JP2008097353A JP2009105365A (ja) 2007-10-03 2008-04-03 コイル部品
JP2008-097353 2008-04-03

Publications (1)

Publication Number Publication Date
WO2009044514A1 true WO2009044514A1 (ja) 2009-04-09

Family

ID=40525946

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/002651 WO2009044514A1 (ja) 2007-10-03 2008-09-25 コイル部品

Country Status (1)

Country Link
WO (1) WO2009044514A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017208525A (ja) * 2016-05-16 2017-11-24 サムソン エレクトロ−メカニックス カンパニーリミテッド． コモンモードフィルター
US11136985B2 (en) 2018-08-31 2021-10-05 Baker Hughes, A Ge Company, Llc High frequency AC noise suppression within transformers

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01175212A (ja) * 1987-12-29 1989-07-11 Biimu Denshi Kogyo Kk リング状ダストコアの製造装置
JPH04165605A (ja) * 1990-10-30 1992-06-11 Tokin Corp インダクタ及びその製造方法
JPH05326240A (ja) * 1992-05-20 1993-12-10 Tokin Corp 圧粉磁芯及びその製造方法
JP2000311816A (ja) * 1999-04-27 2000-11-07 Toko Inc コモンモードチョークコイル
JP2000323329A (ja) * 1999-05-10 2000-11-24 Daido Steel Co Ltd ノイズフィルタ
JP2003124030A (ja) * 2001-10-17 2003-04-25 Fdk Corp 低歪率インダクタンス素子および受動回路装置
JP2003168611A (ja) * 2001-09-18 2003-06-13 Murata Mfg Co Ltd 高周波用コモンモードチョークコイル
JP2006032786A (ja) * 2004-07-20 2006-02-02 Sht Corp Ltd コイル装置
JP2006306693A (ja) * 2005-03-31 2006-11-09 Hitachi Metals Ltd フェライト焼結体およびその製造方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01175212A (ja) * 1987-12-29 1989-07-11 Biimu Denshi Kogyo Kk リング状ダストコアの製造装置
JPH04165605A (ja) * 1990-10-30 1992-06-11 Tokin Corp インダクタ及びその製造方法
JPH05326240A (ja) * 1992-05-20 1993-12-10 Tokin Corp 圧粉磁芯及びその製造方法
JP2000311816A (ja) * 1999-04-27 2000-11-07 Toko Inc コモンモードチョークコイル
JP2000323329A (ja) * 1999-05-10 2000-11-24 Daido Steel Co Ltd ノイズフィルタ
JP2003168611A (ja) * 2001-09-18 2003-06-13 Murata Mfg Co Ltd 高周波用コモンモードチョークコイル
JP2003124030A (ja) * 2001-10-17 2003-04-25 Fdk Corp 低歪率インダクタンス素子および受動回路装置
JP2006032786A (ja) * 2004-07-20 2006-02-02 Sht Corp Ltd コイル装置
JP2006306693A (ja) * 2005-03-31 2006-11-09 Hitachi Metals Ltd フェライト焼結体およびその製造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017208525A (ja) * 2016-05-16 2017-11-24 サムソン エレクトロ−メカニックス カンパニーリミテッド． コモンモードフィルター
US11136985B2 (en) 2018-08-31 2021-10-05 Baker Hughes, A Ge Company, Llc High frequency AC noise suppression within transformers

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