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WO2016013062A1 - Inducteur de trajet magnétique composite - Google Patents

Inducteur de trajet magnétique composite Download PDF

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Publication number
WO2016013062A1
WO2016013062A1 PCT/JP2014/069375 JP2014069375W WO2016013062A1 WO 2016013062 A1 WO2016013062 A1 WO 2016013062A1 JP 2014069375 W JP2014069375 W JP 2014069375W WO 2016013062 A1 WO2016013062 A1 WO 2016013062A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic core
magnetic
composite
core
powder
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2014/069375
Other languages
English (en)
Japanese (ja)
Inventor
革良 邵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TAMURA Corp OF CHINA Ltd
Tamura Corp
Original Assignee
TAMURA Corp OF CHINA Ltd
Tamura Corp
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
Application filed by TAMURA Corp OF CHINA Ltd, Tamura Corp filed Critical TAMURA Corp OF CHINA Ltd
Priority to JP2016535568A priority Critical patent/JP6781043B2/ja
Priority to PCT/JP2014/069375 priority patent/WO2016013062A1/fr
Publication of WO2016013062A1 publication Critical patent/WO2016013062A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H01F27/24—Magnetic cores

Definitions

  • a ferrite material is used for all the magnetic core materials.
  • it is suitable for manufacturing a large magnetic core, there is a problem that the shape becomes large.
  • the gap is formed of an insulating material.
  • the composite magnetic path inductor of the present invention comprises a ferrite magnetic core and a metal soft magnetic powder magnetic core at the same time.
  • the magnetic core made of the metal soft magnetic powder has many minute air gaps, so that the magnetic core is less likely to be saturated.
  • it is a metal soft magnetic powder magnetic core, it is not necessary to have a large volume like a ferrite magnetic core, and performance is not deteriorated by a gap which is too large.
  • the inductor of the present invention can be reduced in size and cost, and performance can be guaranteed.
  • the first magnetic core 11 may be a magnetic core that is integrally formed, not a magnetic core that is a combination of divided magnetic cores.
  • a minute gap between the magnetic core and the magnetic core in the magnetic path is not formed, and loss due to leakage magnetic flux generated in the gap can be suppressed.
  • the magnetic permeability of the first magnetic core is preferably 40 to 100 H / m. However, it is considered that the same effect can be obtained even when a magnetic core having a magnetic permeability of 500 H / m or less is used.
  • the magnetic permeability in the present invention indicates the initial magnetic permeability.
  • the metal soft magnetic powder can be Fe powder, FeSiAl powder, FeSi mixed powder, or iron-based amorphous powder.
  • the first magnetic core 11 is formed of a soft metal magnetic powder by a pressing method.
  • the merit of introducing the gap is that saturation of the second magnetic core 22 of the ferrite material can be prevented.
  • FIG. 5 is a schematic diagram of the structure of the composite magnetic circuit inductor according to the fourth embodiment of the present invention.
  • the inductor 40 in the present embodiment similarly has a first magnetic core 41, a second magnetic core 42, and a coil not shown in the figure.
  • the second magnetic core 42 includes two gaps 42a and 42b.
  • This gap can be formed by an adhesive or other insulating material.
  • the gap provided in the second magnetic core is not limited to two, and may be one or three or more.
  • the gap may be an air gap or a sheet-like insulating material.
  • FIG. 7 is a diagram showing the DC superposition characteristics obtained when the DC bias current is passed by changing the ratio L / W in the composite magnetic circuit inductor in the first embodiment.
  • the frequency and voltage are the same as in FIG.
  • L / W is 1.0.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

La présente invention concerne un inducteur de trajet magnétique composite comprenant un cœur magnétique et une bobine. Le cœur magnétique comprend un premier cœur magnétique en forme d'anneau et un second cœur magnétique positionné à l'intérieur du premier cœur magnétique. Les deux surfaces d'extrémité du second cœur magnétique sont reliées à des surfaces de connexion respectives au niveau de positions correspondantes sur des parois latérales intérieures du premier noyau magnétique. La bobine est enroulée autour du second cœur magnétique. La perméabilité du second cœur magnétique est plus grande que celle du premier cœur magnétique et est, de préférence, de 50 H/m ou plus. La perméabilité du premier cœur magnétique est, de préférence, comprise entre 40 et 100 H/m.
PCT/JP2014/069375 2014-07-22 2014-07-22 Inducteur de trajet magnétique composite Ceased WO2016013062A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2016535568A JP6781043B2 (ja) 2014-07-22 2014-07-22 複合磁路インダクタ
PCT/JP2014/069375 WO2016013062A1 (fr) 2014-07-22 2014-07-22 Inducteur de trajet magnétique composite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/069375 WO2016013062A1 (fr) 2014-07-22 2014-07-22 Inducteur de trajet magnétique composite

Publications (1)

Publication Number Publication Date
WO2016013062A1 true WO2016013062A1 (fr) 2016-01-28

Family

ID=55162618

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/069375 Ceased WO2016013062A1 (fr) 2014-07-22 2014-07-22 Inducteur de trajet magnétique composite

Country Status (2)

Country Link
JP (1) JP6781043B2 (fr)
WO (1) WO2016013062A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021034478A (ja) * 2019-08-21 2021-03-01 株式会社デンソー リアクトル
CN112820509A (zh) * 2021-01-12 2021-05-18 安徽继胜磁性材料有限公司 一种闭环式磁芯结构
US20240203634A1 (en) * 2022-01-28 2024-06-20 Innoscience (suzhou) Semiconductor Co., Ltd. GaN-BASED SWITCHED-MODE POWER SUPPLY WITH PLANAR TRANSFORMER
WO2025009205A1 (fr) * 2023-07-06 2025-01-09 アルプスアルパイン株式会社 Composant magnétique et appareil électrique/électronique

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0587918U (ja) * 1992-04-22 1993-11-26 富士電気化学株式会社 フェライト磁心
JP2001167932A (ja) * 1999-12-08 2001-06-22 Matsushita Electric Ind Co Ltd コイル部品
JP2002057039A (ja) * 2000-08-11 2002-02-22 Hitachi Ferrite Electronics Ltd 複合磁芯
JP2006032560A (ja) * 2004-07-14 2006-02-02 Tdk Corp コイル部品
JP2009033051A (ja) * 2007-07-30 2009-02-12 Sumitomo Electric Ind Ltd リアクトル用コア
WO2010026690A1 (fr) * 2008-09-05 2010-03-11 三菱電機株式会社 Transformateur en feuilles pour convertisseur cc/cc
JP2013143454A (ja) * 2012-01-10 2013-07-22 Sumitomo Electric Ind Ltd リアクトル、コア部品、リアクトルの製造方法、コンバータ、及び電力変換装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004281778A (ja) * 2003-03-17 2004-10-07 Tokyo Coil Engineering Kk チョークコイル及びその製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0587918U (ja) * 1992-04-22 1993-11-26 富士電気化学株式会社 フェライト磁心
JP2001167932A (ja) * 1999-12-08 2001-06-22 Matsushita Electric Ind Co Ltd コイル部品
JP2002057039A (ja) * 2000-08-11 2002-02-22 Hitachi Ferrite Electronics Ltd 複合磁芯
JP2006032560A (ja) * 2004-07-14 2006-02-02 Tdk Corp コイル部品
JP2009033051A (ja) * 2007-07-30 2009-02-12 Sumitomo Electric Ind Ltd リアクトル用コア
WO2010026690A1 (fr) * 2008-09-05 2010-03-11 三菱電機株式会社 Transformateur en feuilles pour convertisseur cc/cc
JP2013143454A (ja) * 2012-01-10 2013-07-22 Sumitomo Electric Ind Ltd リアクトル、コア部品、リアクトルの製造方法、コンバータ、及び電力変換装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021034478A (ja) * 2019-08-21 2021-03-01 株式会社デンソー リアクトル
CN112820509A (zh) * 2021-01-12 2021-05-18 安徽继胜磁性材料有限公司 一种闭环式磁芯结构
US20240203634A1 (en) * 2022-01-28 2024-06-20 Innoscience (suzhou) Semiconductor Co., Ltd. GaN-BASED SWITCHED-MODE POWER SUPPLY WITH PLANAR TRANSFORMER
WO2025009205A1 (fr) * 2023-07-06 2025-01-09 アルプスアルパイン株式会社 Composant magnétique et appareil électrique/électronique

Also Published As

Publication number Publication date
JPWO2016013062A1 (ja) 2017-08-03
JP6781043B2 (ja) 2020-11-04

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