JP2014233525A5 - - Google Patents

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Publication number
JP2014233525A5
JP2014233525A5 JP2013117757A JP2013117757A JP2014233525A5 JP 2014233525 A5 JP2014233525 A5 JP 2014233525A5 JP 2013117757 A JP2013117757 A JP 2013117757A JP 2013117757 A JP2013117757 A JP 2013117757A JP 2014233525 A5 JP2014233525 A5 JP 2014233525A5
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JP
Japan
Prior art keywords
yoke
shaped
side facing
magnetic pole
symmetry plane
Prior art date
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Application number
JP2013117757A
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Japanese (ja)
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JP2014233525A (en
JP6046560B2 (en
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Publication date
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Priority to JP2013117757A priority Critical patent/JP6046560B2/en
Priority claimed from JP2013117757A external-priority patent/JP6046560B2/en
Priority to CN201480027004.7A priority patent/CN105208929B/en
Priority to PCT/JP2014/063947 priority patent/WO2014196411A1/en
Publication of JP2014233525A publication Critical patent/JP2014233525A/en
Publication of JP2014233525A5 publication Critical patent/JP2014233525A5/ja
Application granted granted Critical
Publication of JP6046560B2 publication Critical patent/JP6046560B2/en
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Anticipated expiration legal-status Critical

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Description

前記課題を解決するために、本発明は、
対向して配置される一対の略円盤状の磁極と、
側面視でＣ字またはＵ字形状であり、そのＣ字またはＵ字形状の両端部が前記磁極に近接して配置されるヨークとを備え、
前記ヨークは、前記磁極に近接して対向するヨーク側対向部を有し、
前記ヨーク側対向部は、
前記ヨークを略二分する鉛直対称面の一部を含む中央帯領域と、
前記鉛直対称面から離れ前記中央帯領域の両側に位置する両側帯領域とを有し、
前記ヨーク側対向部の前記磁極に近接して対向するヨーク側対向表面からの高さにおいて、前記中央帯領域は前記両側帯領域より高くなっていることを特徴とする磁石装置である。 In order to solve the above problems, the present invention provides:
A pair of substantially disk-shaped magnetic poles arranged opposite to each other;
A yoke that is C-shaped or U-shaped in a side view, and that both ends of the C-shaped or U-shaped are arranged close to the magnetic poles
The yoke has a yoke-side facing portion facing the magnetic pole in the vicinity;
The yoke side facing portion is
A central zone region including a portion of a vertical symmetry plane that substantially bisects the yoke;
Having both side band regions located on both sides of the central band region away from the vertical symmetry plane;
The magnet device is characterized in that the central band region is higher than the both side band regions in the height from the yoke-side facing surface facing the magnetic pole in the vicinity of the yoke-side facing portion.

Claims (2)

対向して配置される一対の略円盤状の磁極と、
側面視でＣ字またはＵ字形状であり、そのＣ字またはＵ字形状の両端部が前記磁極に近接して配置されるヨークとを備え、
前記ヨークは、前記磁極に近接して対向するヨーク側対向部を有し、
前記ヨーク側対向部は、
前記ヨークを略二分する鉛直対称面の一部を含む中央帯領域と、
前記鉛直対称面から離れ前記中央帯領域の両側に位置する両側帯領域とを有し、
前記ヨーク側対向部の前記磁極に近接して対向するヨーク側対向表面からの高さにおいて、前記中央帯領域は前記両側帯領域より高くなっていることを特徴とする磁石装置。 A pair of substantially disk-shaped magnetic poles arranged opposite to each other;
A yoke that is C-shaped or U-shaped in a side view, and that both ends of the C-shaped or U-shaped are arranged close to the magnetic pole,
The yoke has a yoke-side facing portion facing the magnetic pole in the vicinity;
The yoke side facing portion is
A central zone region including a portion of a vertical symmetry plane that substantially bisects the yoke;
Having both side band regions located on both sides of the central band region away from the vertical symmetry plane;
The magnet device according to claim 1, wherein the central band region is higher than the both side band regions at a height from a yoke-side facing surface facing the magnetic pole in the proximity of the yoke-side facing portion. 前記磁極に近接して対向する前記ヨーク側対向部のヨーク側対向表面からの高さは、前記鉛直対称面から離れるに従って段階的に減少することを特徴とする請求項１乃至請求項７と請求項１０のいずれか１項に記載の磁石装置。 8. The height from the yoke-side facing surface of the yoke-side facing portion that faces the magnetic pole in the vicinity of the magnetic pole gradually decreases as the distance from the vertical symmetry plane increases. Item 11. The magnet device according to any one of Items 10.
JP2013117757A 2013-06-04 2013-06-04 Magnet apparatus and magnetic resonance imaging apparatus Active JP6046560B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2013117757A JP6046560B2 (en) 2013-06-04 2013-06-04 Magnet apparatus and magnetic resonance imaging apparatus
CN201480027004.7A CN105208929B (en) 2013-06-04 2014-05-27 Magnet arrangement and MR imaging apparatus
PCT/JP2014/063947 WO2014196411A1 (en) 2013-06-04 2014-05-27 Magnet device and magnetic resonance imaging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013117757A JP6046560B2 (en) 2013-06-04 2013-06-04 Magnet apparatus and magnetic resonance imaging apparatus

Publications (3)

Publication Number Publication Date
JP2014233525A JP2014233525A (en) 2014-12-15
JP2014233525A5 true JP2014233525A5 (en) 2015-12-24
JP6046560B2 JP6046560B2 (en) 2016-12-14

Family

ID=52008061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013117757A Active JP6046560B2 (en) 2013-06-04 2013-06-04 Magnet apparatus and magnetic resonance imaging apparatus

Country Status (3)

Country Link
JP (1) JP6046560B2 (en)
CN (1) CN105208929B (en)
WO (1) WO2014196411A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6046560B2 (en) * 2013-06-04 2016-12-14 株式会社日立製作所 Magnet apparatus and magnetic resonance imaging apparatus
CN111741590A (en) * 2020-07-21 2020-10-02 中国原子能科学研究院 Deflection magnet and deflection device with same
JP2022165843A (en) * 2021-04-20 2022-11-01 テラル株式会社 Magnetic field generating device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2276946B (en) * 1993-04-08 1997-04-02 Oxford Magnet Tech Improvements in or relating to MRI magnets
JP3113513B2 (en) * 1994-07-29 2000-12-04 住友特殊金属株式会社 Magnetic field generator for MRI
US6150911A (en) * 1996-07-24 2000-11-21 Odin Technologies Ltd. Yoked permanent magnet assemblies for use in medical applications
JP2005168772A (en) * 2003-12-11 2005-06-30 Hitachi Ltd Magnetic generator and magnetic resonance imaging apparatus using the same
CN100434038C (en) * 2004-03-05 2008-11-19 西门子（中国）有限公司 Device for regulating magnet field of MRI device
CN101825692A (en) * 2009-03-02 2010-09-08 绵阳西磁磁电有限公司 High-field-intensity focusing nuclear magnetic resonance magnetic field and preparation method thereof
JP6046560B2 (en) * 2013-06-04 2016-12-14 株式会社日立製作所 Magnet apparatus and magnetic resonance imaging apparatus

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