JP7346771B1 - 埋込磁石式回転子および埋込磁石式回転電機 - Google Patents
埋込磁石式回転子および埋込磁石式回転電機 Download PDFInfo
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- JP7346771B1 JP7346771B1 JP2023520295A JP2023520295A JP7346771B1 JP 7346771 B1 JP7346771 B1 JP 7346771B1 JP 2023520295 A JP2023520295 A JP 2023520295A JP 2023520295 A JP2023520295 A JP 2023520295A JP 7346771 B1 JP7346771 B1 JP 7346771B1
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- magnet
- rotor
- permanent magnet
- storage hole
- embedded
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- 238000004804 winding Methods 0.000 claims description 4
- 230000000052 comparative effect Effects 0.000 description 25
- 230000005347 demagnetization Effects 0.000 description 10
- 230000004907 flux Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 238000005498 polishing Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 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
- 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
- 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
Abstract
Description
以上、本発明の実施形態を説明したが、実施形態は例として提示したものであり、発明の範囲を限定することは意図していない。また、各実施形態の特徴を組み合わせてもよい。さらに、実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。
Claims (4)
- 回転軸方向に延びたロータシャフトと、
それぞれの磁極において形成され第1の壁と第2の壁に挟まれた少なくとも一つの磁石収納孔を有し、前記ロータシャフトに取り付けられた回転子鉄心と、
前記磁石収納孔に収納され当該磁石収納孔の断面において一方向に連なるように配された複数の永久磁石と、
を具備する埋込磁石式回転子であって、
前記複数の永久磁石のそれぞれは、ほぼ直方体の外形であって、互いに反対側にある2つの角部に傾斜面が長手方向にわたって形成されている、
ことを特徴とする埋込磁石式回転子。 - 前記複数の永久磁石は、前記傾斜面の方向が同じ方向となるように連なっていることを特徴とする請求項1に記載の埋込磁石式回転子。
- 前記磁石収納孔の前記第1の壁および前記第2の壁には当該磁石収納孔に突出して前記複数の永久磁石を保持する第1の保持突起および第2の保持突起が形成され、
前記第1の保持突起および第2の保持突起にそれぞれ対向する前記永久磁石の対向部分は、前記傾斜面が設けられていない側の角部であることを特徴とする請求項1に記載の埋込磁石式回転子。 - 請求項1ないし請求項3のいずれか一項に記載の埋込磁石式回転子と、
固定子鉄心と、前記固定子鉄心に巻回された固定子巻線を有する固定子と、
を備えることを特徴とする埋込磁石式回転電機。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022134141 | 2022-08-25 | ||
JP2022134141 | 2022-08-25 | ||
PCT/JP2022/038530 WO2024042731A1 (ja) | 2022-08-25 | 2022-10-17 | 埋込磁石式回転子および埋込磁石式回転電機 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP7346771B1 true JP7346771B1 (ja) | 2023-09-19 |
Family
ID=88021751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2023520295A Active JP7346771B1 (ja) | 2022-08-25 | 2022-10-17 | 埋込磁石式回転子および埋込磁石式回転電機 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20240072583A1 (ja) |
JP (1) | JP7346771B1 (ja) |
CN (1) | CN117941222A (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014187748A (ja) | 2013-03-22 | 2014-10-02 | Mitsubishi Electric Corp | 永久磁石埋込型電動機の回転子、圧縮機及び冷凍空調装置 |
JP2018164378A (ja) | 2017-03-27 | 2018-10-18 | 本田技研工業株式会社 | Ipmロータ用磁石、ipmロータおよびipmロータ用磁石の製造方法 |
JP2019030207A (ja) | 2017-08-01 | 2019-02-21 | 株式会社デンソー | 電動機の磁気発生装置 |
-
2022
- 2022-10-17 CN CN202280009180.2A patent/CN117941222A/zh active Pending
- 2022-10-17 JP JP2023520295A patent/JP7346771B1/ja active Active
-
2023
- 2023-09-25 US US18/473,481 patent/US20240072583A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014187748A (ja) | 2013-03-22 | 2014-10-02 | Mitsubishi Electric Corp | 永久磁石埋込型電動機の回転子、圧縮機及び冷凍空調装置 |
JP2018164378A (ja) | 2017-03-27 | 2018-10-18 | 本田技研工業株式会社 | Ipmロータ用磁石、ipmロータおよびipmロータ用磁石の製造方法 |
JP2019030207A (ja) | 2017-08-01 | 2019-02-21 | 株式会社デンソー | 電動機の磁気発生装置 |
Also Published As
Publication number | Publication date |
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CN117941222A (zh) | 2024-04-26 |
US20240072583A1 (en) | 2024-02-29 |
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