JP7009069B2 - 磁石積層体およびモータ - Google Patents
磁石積層体およびモータ Download PDFInfo
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- JP7009069B2 JP7009069B2 JP2017044289A JP2017044289A JP7009069B2 JP 7009069 B2 JP7009069 B2 JP 7009069B2 JP 2017044289 A JP2017044289 A JP 2017044289A JP 2017044289 A JP2017044289 A JP 2017044289A JP 7009069 B2 JP7009069 B2 JP 7009069B2
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- Prior art keywords
- magnet
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- conduction
- magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
- H01F7/021—Construction of PM
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/26—Rotor cores with slots for windings
- H02K1/265—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
Claims (10)
- 積層された複数の磁石を有し、該複数の磁石のうちの積層方向において隣り合う第1の磁石と第2の磁石を含む磁石積層体であって、
前記第1の磁石と前記第2の磁石とが互いに対向する対向面領域の一部が、前記第1の磁石と前記第2の磁石とが導通する導通領域であり、前記対向面領域の残部が、前記第1の磁石と前記第2の磁石とが絶縁された絶縁領域であり、
前記導通領域が、前記第1の磁石と前記第2の磁石との間に介在する導通体により、前記第1の磁石と前記第2の磁石とが導通する領域であり、
前記導通体が、前記第1の磁石および前記第2の磁石と同じ材料で構成され、かつ、前記第1の磁石または前記第2の磁石から脱離した欠片である、磁石積層体。 - 前記第1の磁石と前記第2の磁石との間の抵抗値が0.5Ω以上である、請求項1に記載の磁石積層体。
- 前記対向面領域に一つの前記導通領域のみ存在する、請求項1または2に記載の磁石積層体。
- 前記導通領域が前記対向面領域の縁に存在する、請求項3に記載の磁石積層体。
- 前記導通領域が前記対向面領域の中央に存在する、請求項3に記載の磁石積層体。
- 前記対向面領域に複数の前記導通領域が存在する、請求項1または2に記載の磁石積層体。
- 前記対向面領域が矩形状であり、前記対向面領域の対向する辺縁それぞれに前記導通領域が存在する、請求項6に記載の磁石積層体。
- 前記絶縁領域において前記第1の磁石と前記第2の磁石との間に介在する絶縁体により、前記第1の磁石と前記第2の磁石とが絶縁されている、請求項1~7のいずれか一項に記載の磁石積層体。
- スロットが設けられて、かつ、該スロットに磁石積層体が収容された回転子を備え、
前記磁石積層体が、積層された複数の磁石を有し、該複数の磁石のうちの積層方向において隣り合う第1の磁石と第2の磁石を含む磁石積層体であって、前記第1の磁石と前記第2の磁石とが互いに対向する対向面領域の一部が、前記第1の磁石と前記第2の磁石とが導通する導通領域であり、前記対向面領域の残部が、前記第1の磁石と前記第2の磁石とが絶縁された絶縁領域であり、
前記導通領域が、前記第1の磁石と前記第2の磁石との間に介在する導通体により、前記第1の磁石と前記第2の磁石とが導通する領域であり、
前記導通体が、前記第1の磁石および前記第2の磁石と同じ材料で構成され、かつ、前記第1の磁石または前記第2の磁石から脱離した欠片である、モータ。 - 前記第1の磁石と前記第2の磁石との間の抵抗値が0.5Ω以上である、請求項9に記載のモータ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017044289A JP7009069B2 (ja) | 2017-03-08 | 2017-03-08 | 磁石積層体およびモータ |
US15/912,702 US11232893B2 (en) | 2017-03-08 | 2018-03-06 | Magnet stack and motor |
CN201810184913.1A CN108574349B (zh) | 2017-03-08 | 2018-03-07 | 磁铁层叠体及电机 |
Applications Claiming Priority (1)
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JP2017044289A JP7009069B2 (ja) | 2017-03-08 | 2017-03-08 | 磁石積層体およびモータ |
Publications (2)
Publication Number | Publication Date |
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JP2018148754A JP2018148754A (ja) | 2018-09-20 |
JP7009069B2 true JP7009069B2 (ja) | 2022-01-25 |
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JP2017044289A Active JP7009069B2 (ja) | 2017-03-08 | 2017-03-08 | 磁石積層体およびモータ |
Country Status (3)
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US (1) | US11232893B2 (ja) |
JP (1) | JP7009069B2 (ja) |
CN (1) | CN108574349B (ja) |
Families Citing this family (2)
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FR3073683B1 (fr) * | 2017-11-14 | 2019-10-11 | Safran Helicopter Engines | Rotor refroidi par canal de refroidissement, machine electrique d'une turbomachine comprenant un tel rotor. |
JPWO2022176771A1 (ja) * | 2021-02-17 | 2022-08-25 |
Citations (2)
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JP2000245085A (ja) | 1998-12-25 | 2000-09-08 | Matsushita Electric Ind Co Ltd | モータ |
US20140054999A1 (en) | 2012-08-27 | 2014-02-27 | Remy Technologies, Llc | Method of manufacturing an electric machine with segmented permanent magnets |
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US6340857B2 (en) * | 1998-12-25 | 2002-01-22 | Matsushita Electric Industrial Co., Ltd. | Motor having a rotor with interior split-permanent-magnet |
JP2000324736A (ja) | 1999-05-12 | 2000-11-24 | Mitsubishi Electric Corp | 永久磁石型モータ |
JP2002136006A (ja) * | 2000-10-27 | 2002-05-10 | Meidensha Corp | 永久磁石形回転電機 |
JP2006136130A (ja) * | 2004-11-05 | 2006-05-25 | Toyota Motor Corp | 永久磁石式回転電機、それに用いる永久磁石の製造方法およびその製造方法を用いた永久磁石式回転電機の製造方法 |
JP2005354899A (ja) * | 2005-09-09 | 2005-12-22 | Mitsubishi Electric Corp | 永久磁石型モータ |
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CN201038847Y (zh) * | 2007-04-10 | 2008-03-19 | 上海日立电器有限公司 | 压缩机的内置磁铁永磁电机转子磁极磁铁 |
JP4974865B2 (ja) | 2007-12-07 | 2012-07-11 | 三菱電機株式会社 | 回転電機 |
JP2009225608A (ja) * | 2008-03-18 | 2009-10-01 | Nitto Denko Corp | モータ用永久磁石及びモータ用永久磁石の製造方法 |
JP5429515B2 (ja) | 2008-06-25 | 2014-02-26 | 日産自動車株式会社 | 永久磁石型回転電機のロータ又はステータに配設する界磁極用磁石体、及び永久磁石型回転電機 |
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CN203645414U (zh) * | 2013-12-17 | 2014-06-11 | 安徽大地熊新材料股份有限公司 | 一种用于电机的磁体组件 |
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2017
- 2017-03-08 JP JP2017044289A patent/JP7009069B2/ja active Active
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2018
- 2018-03-06 US US15/912,702 patent/US11232893B2/en active Active
- 2018-03-07 CN CN201810184913.1A patent/CN108574349B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000245085A (ja) | 1998-12-25 | 2000-09-08 | Matsushita Electric Ind Co Ltd | モータ |
US20140054999A1 (en) | 2012-08-27 | 2014-02-27 | Remy Technologies, Llc | Method of manufacturing an electric machine with segmented permanent magnets |
Also Published As
Publication number | Publication date |
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CN108574349B (zh) | 2020-05-08 |
CN108574349A (zh) | 2018-09-25 |
US20180261367A1 (en) | 2018-09-13 |
US11232893B2 (en) | 2022-01-25 |
JP2018148754A (ja) | 2018-09-20 |
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