JP2020191693A - 回転電機 - Google Patents
回転電機 Download PDFInfo
- Publication number
- JP2020191693A JP2020191693A JP2019094023A JP2019094023A JP2020191693A JP 2020191693 A JP2020191693 A JP 2020191693A JP 2019094023 A JP2019094023 A JP 2019094023A JP 2019094023 A JP2019094023 A JP 2019094023A JP 2020191693 A JP2020191693 A JP 2020191693A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- magnet
- electric machine
- holding portion
- main body
- 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.)
- Granted
Links
- 230000035699 permeability Effects 0.000 claims abstract description 15
- 230000004907 flux Effects 0.000 claims abstract description 13
- 239000006247 magnetic powder Substances 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 8
- 229910000576 Laminated steel Inorganic materials 0.000 claims abstract description 7
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 230000005347 demagnetization Effects 0.000 abstract description 11
- 230000002093 peripheral effect Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910052779 Neodymium Inorganic materials 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 2
- 239000011863 silicon-based powder Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- 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]
-
- 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
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- 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
- H02K1/2713—Inner rotors the magnetisation axis of the magnets being axial, e.g. claw-pole type
-
- 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
- H01F1/14—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 metals or alloys
- H01F1/20—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 metals or alloys in the form of particles, e.g. powder
- H01F1/22—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 metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
-
- 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
- H01F27/255—Magnetic cores made from particles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0233—Manufacturing of magnetic circuits made from sheets
-
- 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
- H02K1/27—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
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
Claims (2)
- 所定の軸線周りに所定の回転方向に回転可能なロータとステータとを備え、前記ロータおよび前記ステータの一方が複数の永久磁石が取り付けられる磁石保持部を有し、他方が複数のコイルが取り付けられるコイル保持部を有する回転電機であって、
前記各永久磁石が、前記ロータの軸線方向に関し、前記磁石保持部の全長に亘って延在しており、
前記磁石保持部が、前記各永久磁石を保持する本体部と、前記永久磁石とロータ−ステータ間のエアギャップとの間における前記回転方向の後方側の第1部分とを有し、
前記第1部分が、前記磁石保持部の前記本体部の透磁率より低い透磁率を有し、かつ、前記磁石保持部の前記本体部の飽和磁束密度より低い飽和磁束密度を有する、回転電機。 - 前記磁石保持部の本体部が、前記ロータの軸線方向において複数のケイ素鋼板が積層された積層鋼板で構成されており、
前記第1部分が、軟磁性粉の圧粉成形体で構成されている、請求項1に記載の回転電機。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019094023A JP7404653B2 (ja) | 2019-05-17 | 2019-05-17 | 回転電機 |
US16/866,756 US11239714B2 (en) | 2019-05-17 | 2020-05-05 | Rotating electrical machine |
CN202010385814.7A CN111953098B (zh) | 2019-05-17 | 2020-05-09 | 旋转电机 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019094023A JP7404653B2 (ja) | 2019-05-17 | 2019-05-17 | 回転電機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020191693A true JP2020191693A (ja) | 2020-11-26 |
JP7404653B2 JP7404653B2 (ja) | 2023-12-26 |
Family
ID=73245187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019094023A Active JP7404653B2 (ja) | 2019-05-17 | 2019-05-17 | 回転電機 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11239714B2 (ja) |
JP (1) | JP7404653B2 (ja) |
CN (1) | CN111953098B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024111500A1 (ja) * | 2022-11-22 | 2024-05-30 | パナソニックIpマネジメント株式会社 | 回転電機 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021118832A1 (de) * | 2021-07-21 | 2023-01-26 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Rotor für eine elektrische Maschine, elektrische Maschine und Verfahren zum Betreiben einer elektrischen Maschine |
CN113726047A (zh) * | 2021-08-25 | 2021-11-30 | 珠海格力电器股份有限公司 | 一种电机转子及具有其的永磁辅助磁阻电机 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001197694A (ja) * | 2000-01-14 | 2001-07-19 | Sharp Corp | 同期機用回転子及び同期電動機及び同期発電機 |
JP2004104962A (ja) * | 2002-09-12 | 2004-04-02 | Toshiba Industrial Products Manufacturing Corp | 永久磁石式リラクタンス型回転電機 |
JP2008167520A (ja) * | 2006-12-27 | 2008-07-17 | Toyota Central R&D Labs Inc | 回転電機 |
JP2012110214A (ja) * | 2010-10-19 | 2012-06-07 | Asmo Co Ltd | ブラシレスモータ |
US20180358851A1 (en) * | 2017-06-12 | 2018-12-13 | Borgwarner Inc. | Electric machine with non-symmetrical magnet slots |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000134842A (ja) | 1998-10-29 | 2000-05-12 | Hitachi Ltd | 回転電機 |
CN101505080A (zh) * | 2006-03-27 | 2009-08-12 | 大金工业株式会社 | 电枢铁芯的制造方法以及电枢铁芯 |
US7598645B2 (en) * | 2007-05-09 | 2009-10-06 | Uqm Technologies, Inc. | Stress distributing permanent magnet rotor geometry for electric machines |
JP2009201259A (ja) * | 2008-02-21 | 2009-09-03 | Toshiba Corp | 永久磁石式回転電機、永久磁石式回転電機の組立方法、永久磁石式回転電機の分解方法及び永久磁石電動機ドライブシステム |
JP5161612B2 (ja) * | 2008-02-22 | 2013-03-13 | 株式会社東芝 | 永久磁石式回転電機、永久磁石式回転電機の組立方法及び永久磁石式回転電機の分解方法 |
US8847522B2 (en) * | 2008-11-14 | 2014-09-30 | Denso Corporation | Reluctance motor with improved stator structure |
JPWO2012014260A1 (ja) * | 2010-07-30 | 2013-09-09 | 株式会社日立製作所 | 回転電機及びそれを用いた電動車両 |
MX2013002634A (es) * | 2010-09-10 | 2013-05-09 | Nissan Motor | Rotor de maquina electrica giratoria. |
JP2012161226A (ja) * | 2011-02-03 | 2012-08-23 | Toyota Motor Corp | 回転電機用回転子 |
JP6110151B2 (ja) * | 2013-02-07 | 2017-04-05 | 本田技研工業株式会社 | 回転電機のロータ |
JP6805835B2 (ja) * | 2017-01-13 | 2020-12-23 | 株式会社デンソー | 回転電機 |
US20200220400A1 (en) * | 2019-01-08 | 2020-07-09 | Borgwarner Inc. | Interior permanent magnet electric machine with tapered bridge structure |
-
2019
- 2019-05-17 JP JP2019094023A patent/JP7404653B2/ja active Active
-
2020
- 2020-05-05 US US16/866,756 patent/US11239714B2/en active Active
- 2020-05-09 CN CN202010385814.7A patent/CN111953098B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001197694A (ja) * | 2000-01-14 | 2001-07-19 | Sharp Corp | 同期機用回転子及び同期電動機及び同期発電機 |
JP2004104962A (ja) * | 2002-09-12 | 2004-04-02 | Toshiba Industrial Products Manufacturing Corp | 永久磁石式リラクタンス型回転電機 |
JP2008167520A (ja) * | 2006-12-27 | 2008-07-17 | Toyota Central R&D Labs Inc | 回転電機 |
JP2012110214A (ja) * | 2010-10-19 | 2012-06-07 | Asmo Co Ltd | ブラシレスモータ |
US20180358851A1 (en) * | 2017-06-12 | 2018-12-13 | Borgwarner Inc. | Electric machine with non-symmetrical magnet slots |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024111500A1 (ja) * | 2022-11-22 | 2024-05-30 | パナソニックIpマネジメント株式会社 | 回転電機 |
Also Published As
Publication number | Publication date |
---|---|
CN111953098B (zh) | 2024-03-12 |
CN111953098A (zh) | 2020-11-17 |
US11239714B2 (en) | 2022-02-01 |
JP7404653B2 (ja) | 2023-12-26 |
US20200366144A1 (en) | 2020-11-19 |
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