JP2020096485A - 永久磁石および回転電機 - Google Patents
永久磁石および回転電機 Download PDFInfo
- Publication number
- JP2020096485A JP2020096485A JP2018234578A JP2018234578A JP2020096485A JP 2020096485 A JP2020096485 A JP 2020096485A JP 2018234578 A JP2018234578 A JP 2018234578A JP 2018234578 A JP2018234578 A JP 2018234578A JP 2020096485 A JP2020096485 A JP 2020096485A
- Authority
- JP
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- Prior art keywords
- permanent magnet
- inner arc
- arc
- magnetic flux
- vertical reference
- 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.)
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Links
- 230000002093 peripheral effect Effects 0.000 claims description 23
- 230000004907 flux Effects 0.000 abstract description 42
- 229910052761 rare earth metal Inorganic materials 0.000 description 11
- 238000004088 simulation Methods 0.000 description 11
- 239000013078 crystal Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 238000005245 sintering Methods 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910052692 Dysprosium Inorganic materials 0.000 description 2
- 229910052771 Terbium Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052747 lanthanoid Inorganic materials 0.000 description 2
- 150000002602 lanthanoids Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- 229910000576 Laminated steel Inorganic materials 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229910052727 yttrium Inorganic materials 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]
- 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
- 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
-
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
Claims (4)
- 外弧、内弧、および、前記外弧の端点と前記内弧の端点とを結ぶ一対の端辺で画成されるアーチ形状の断面を有し、
前記内弧によって画成される内周面に設けられるとともに前記断面において前記内弧の開き角の二等分線方向に垂直な垂直基準面を有する、永久磁石。 - 前記断面において前記内弧側に位置する仮想中心を基準に放射状に着磁されている、請求項1に記載の永久磁石。
- 前記内弧の開き角θの範囲が10°≦θ≦90°である、請求項1または2に記載の永久磁石。
- シャフトと該シャフトを囲むように複数の永久磁石が取り付けられるロータコアとを有するロータと、該ロータの外周に配置された複数のコイルを有するステータとを備える回転電機であって、
前記永久磁石が、外弧、内弧、および、前記外弧の端点と前記内弧の端点とを結ぶ一対の端辺で画成されるアーチ形状の断面を有し、前記内弧によって画成される内周面に設けられるとともに前記断面において前記内弧の開き角の二等分線方向に垂直な垂直基準面を備える、回転電機。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018234578A JP7331356B2 (ja) | 2018-12-14 | 2018-12-14 | 永久磁石および回転電機 |
US16/708,721 US11482899B2 (en) | 2018-12-14 | 2019-12-10 | Rotating electrical machine with rotor having arc shaped permanent magnets |
CN201911264897.8A CN111327136B (zh) | 2018-12-14 | 2019-12-11 | 永磁铁和旋转电机 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018234578A JP7331356B2 (ja) | 2018-12-14 | 2018-12-14 | 永久磁石および回転電機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020096485A true JP2020096485A (ja) | 2020-06-18 |
JP7331356B2 JP7331356B2 (ja) | 2023-08-23 |
Family
ID=71070972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018234578A Active JP7331356B2 (ja) | 2018-12-14 | 2018-12-14 | 永久磁石および回転電機 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11482899B2 (ja) |
JP (1) | JP7331356B2 (ja) |
CN (1) | CN111327136B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021145320A1 (ja) | 2020-01-14 | 2021-07-22 | 味の素株式会社 | 細胞の培養方法 |
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