CN117859184A - 铁氧体片以及使用其的天线装置和非接触供电装置 - Google Patents

铁氧体片以及使用其的天线装置和非接触供电装置 Download PDF

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Publication number
CN117859184A
CN117859184A CN202280057914.4A CN202280057914A CN117859184A CN 117859184 A CN117859184 A CN 117859184A CN 202280057914 A CN202280057914 A CN 202280057914A CN 117859184 A CN117859184 A CN 117859184A
Authority
CN
China
Prior art keywords
ferrite
ferrite sheet
sheet
groove
sintered plate
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.)
Pending
Application number
CN202280057914.4A
Other languages
English (en)
Chinese (zh)
Inventor
大前诚司
木村哲也
大桥昭博
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.)
Toda Kogyo Corp
Original Assignee
Toda Kogyo 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 Toda Kogyo Corp filed Critical Toda Kogyo Corp
Publication of CN117859184A publication Critical patent/CN117859184A/zh
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
    • 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
    • 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
    • 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
    • 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
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
    • H01Q7/08—Ferrite rod or like elongated core
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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—ELECTRIC POWER NETWORKS; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Soft Magnetic Materials (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Coils Or Transformers For Communication (AREA)
CN202280057914.4A 2021-08-26 2022-08-15 铁氧体片以及使用其的天线装置和非接触供电装置 Pending CN117859184A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021138205 2021-08-26
JP2021-138205 2021-08-26
PCT/JP2022/030879 WO2023026890A1 (ja) 2021-08-26 2022-08-15 フェライトシート並びにそれを用いたアンテナ装置及び非接触給電装置

Publications (1)

Publication Number Publication Date
CN117859184A true CN117859184A (zh) 2024-04-09

Family

ID=85321929

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202280057914.4A Pending CN117859184A (zh) 2021-08-26 2022-08-15 铁氧体片以及使用其的天线装置和非接触供电装置

Country Status (7)

Country Link
US (1) US20240243476A1 (https=)
EP (1) EP4394813A4 (https=)
JP (1) JPWO2023026890A1 (https=)
KR (1) KR20240043806A (https=)
CN (1) CN117859184A (https=)
TW (1) TW202309939A (https=)
WO (1) WO2023026890A1 (https=)

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4277596B2 (ja) * 2003-06-27 2009-06-10 戸田工業株式会社 焼結フェライト基板
WO2006129704A1 (ja) * 2005-06-03 2006-12-07 Murata Manufacturing Co., Ltd. フェライトシート及びその製造方法
JP4743410B2 (ja) * 2005-10-26 2011-08-10 Ｔｄｋ株式会社 ノイズ対策用複合磁性シート積層体の装着方法
DK2060076T3 (da) * 2006-08-21 2011-06-27 Interdigital Tech Corp Fremgangsmåde og apparat til at forhindre transmissionsblokering i et trådløst HSUPA-kommunikationssystem
JP4608474B2 (ja) 2006-11-10 2011-01-12 北川工業株式会社 複合磁性部材
JP5023377B2 (ja) * 2007-05-30 2012-09-12 北川工業株式会社 セラミックシート
JP4936391B2 (ja) 2007-11-07 2012-05-23 北川工業株式会社 セラミックシート
JP5070353B1 (ja) * 2011-04-08 2012-11-14 株式会社Ｍａｒｕｗａ フェライト複合シートとその製造方法及びそのようなフェライト複合シートに用いられる焼結フェライト小片
US9640304B2 (en) * 2012-07-12 2017-05-02 Skc Co., Ltd. Ceramic laminate sheet with flexibility and preparation method thereof
KR20140040460A (ko) * 2012-09-26 2014-04-03 삼성전기주식회사 자성 기판 및 자성 기판 제조 방법
KR20140062730A (ko) * 2012-11-15 2014-05-26 삼성전기주식회사 자성시트 및 이의 제조방법
JP6127959B2 (ja) * 2013-12-20 2017-05-17 Tdk株式会社 フェライト組成物、フェライトプレート、アンテナ素子用部材、およびアンテナ素子
KR101762778B1 (ko) * 2014-03-04 2017-07-28 엘지이노텍 주식회사 무선 충전 및 통신 기판 그리고 무선 충전 및 통신 장치
JP2016076645A (ja) * 2014-10-08 2016-05-12 Tdk株式会社 平面コイル
US10931152B2 (en) * 2015-07-20 2021-02-23 Amosense Co., Ltd. Method of manufacturing magnetic field shielding sheet and magnetic field shielding sheet formed thereby
KR20170093029A (ko) * 2016-02-04 2017-08-14 주식회사 아모센스 무선전력 전송모듈용 차폐유닛 및 이를 구비한 무선전력 전송모듈
WO2018155162A1 (ja) * 2017-02-23 2018-08-30 株式会社村田製作所 シールド板付き電子部品及び電子部品用シールド板
US10578049B2 (en) * 2017-04-28 2020-03-03 Mahle International Gmbh Thermal barrier coating for engine combustion component
JP2020083731A (ja) * 2018-11-30 2020-06-04 パナソニックＩｐマネジメント株式会社 フェライトシート及びそれを用いたコイルモジュール
US11192184B2 (en) * 2019-06-20 2021-12-07 Southwest Research Institute Engineered platelets for additive manufacturing
FR3119252B1 (fr) * 2021-01-26 2023-01-06 Commissariat A L’Energie Atomique Et Aux Energies Alternatives Dispositif de protection et de supervision d’un système électronique comprenant au moins un composant électronique. Procédé associé de protection et de supervision de l’intégrité du système électronique et du dispositif, et de brouillage d’attaques.

Also Published As

Publication number Publication date
TW202309939A (zh) 2023-03-01
EP4394813A4 (en) 2025-08-27
WO2023026890A1 (ja) 2023-03-02
JPWO2023026890A1 (https=) 2023-03-02
EP4394813A1 (en) 2024-07-03
KR20240043806A (ko) 2024-04-03
US20240243476A1 (en) 2024-07-18

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