JP7415876B2 - モータ - Google Patents
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- JP7415876B2 JP7415876B2 JP2020184675A JP2020184675A JP7415876B2 JP 7415876 B2 JP7415876 B2 JP 7415876B2 JP 2020184675 A JP2020184675 A JP 2020184675A JP 2020184675 A JP2020184675 A JP 2020184675A JP 7415876 B2 JP7415876 B2 JP 7415876B2
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- torque
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- 230000005415 magnetization Effects 0.000 claims description 71
- 230000007423 decrease Effects 0.000 claims description 36
- 239000010410 layer Substances 0.000 description 41
- 230000004907 flux Effects 0.000 description 31
- 230000000052 comparative effect Effects 0.000 description 21
- 239000011347 resin Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 239000006247 magnetic powder Substances 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 8
- 239000000956 alloy Substances 0.000 description 8
- 239000000696 magnetic material Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229920001187 thermosetting polymer Polymers 0.000 description 6
- 229910052761 rare earth metal Inorganic materials 0.000 description 5
- 150000002910 rare earth metals Chemical class 0.000 description 5
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 4
- 238000005056 compaction Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 229910015372 FeAl Inorganic materials 0.000 description 2
- 229910002546 FeCo Inorganic materials 0.000 description 2
- 229910002555 FeNi Inorganic materials 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 2
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910005347 FeSi Inorganic materials 0.000 description 1
- 229910005435 FeTaN Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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
- 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
-
- 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)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Description
図1に示す解析モデルの変形例として、磁極数が6個のロータのモデルを作成した。実施例1-1~1-3における永久磁石は、磁石厚さが、3.5mmであり、N極側からS極側に進むに従って残留磁化が小さくように、残留磁化の異なる3層の磁石層を積層したものを想定している。
表1に示すように、比較例1-1~1-3では、それぞれの永久磁石の残留磁化は同じであり、各磁石のt1磁化~t3磁化も同じであり、磁石厚さが異なる。したがって、磁石厚さに応じて、磁石量比が異なる。
表1に示すように、比較例2-1~2-3は、実施例1-1~1-3に対応し、これらと相違する点は、永久磁石として、S極側からN極側に進むに従って残留磁化が小さくなるように、残留磁化の異なる3層の磁石層を積層したものを想定している。したがって、t3磁化比、t2磁化比、およびt1磁化比の順に、その値が大きい。
表2に示すように、実施例1-1~1-3と同様にして、解析モデルを作成した。実施例2-1~2-3は、上述した実施例1-1~1-3に対応しており、永久磁石の厚さが異なる点が相違する。実施例2-1~2-3は、永久磁石の相対密度および磁石量比が、対応する実施例1-1~1-3よりも、磁石厚みの減少割合分、低くなっている。
表2に示すように、実施例1-1~1-3と同様にして、解析モデルを作成した。実施例3-1、3-2は、上述した実施例1-1、1-2に対応しており、永久磁石は、2つの磁石層で構成され、実施例1-1、1-2のN極側の磁石層と、中央の磁石層とで構成されている。永久磁石の磁石量比が、実施例3-1、3-2よりも、磁石厚みの減少割合分、低くなっている。
Claims (2)
- 複数の永久磁石を、ロータコアに埋め込んだロータと、前記ロータの外周に位置するステータとを備えるモータであって、
前記ロータは、前記永久磁石が配置された磁極が、前記ロータの回転軸の周りに複数形成されており、
隣り合う前記磁極において、前記各磁極の前記永久磁石は、N極とS極の位置を反転させて配置されており、
前記各永久磁石は、N極側からS極側に進むに従って残留磁化が小さくなっており、
前記永久磁石の体積密度は、N極側からS極側に進むに従って低下していることを特徴とするモータ。 - 複数の永久磁石を、ロータコアに埋め込んだロータと、前記ロータの外周に位置するステータとを備えるモータであって、
前記ロータは、前記永久磁石が配置された磁極が、前記ロータの回転軸の周りに複数形成されており、
隣り合う前記磁極において、前記各磁極の前記永久磁石は、N極とS極の位置を反転させて配置されており、
前記各永久磁石は、N極側からS極側に進むに従って残留磁化が小さくなっており、
前記永久磁石は、前記N極から前記S極に複数の磁石層が積層されたものであり、前記N極側の磁石層は、前記S極側の磁石層に比べて、残留磁化が大きく、
前記永久磁石において、前記N極側の磁石層の体積密度は、前記S極側の磁石層の体積密度に比べて大きいことを特徴とするモータ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2020184675A JP7415876B2 (ja) | 2020-11-04 | 2020-11-04 | モータ |
CN202111259046.1A CN114530960B (zh) | 2020-11-04 | 2021-10-28 | 马达 |
US17/517,169 US11682936B2 (en) | 2020-11-04 | 2021-11-02 | Motor |
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JP2020184675A JP7415876B2 (ja) | 2020-11-04 | 2020-11-04 | モータ |
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JP2022074552A JP2022074552A (ja) | 2022-05-18 |
JP7415876B2 true JP7415876B2 (ja) | 2024-01-17 |
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Country Status (3)
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US (1) | US11682936B2 (ja) |
JP (1) | JP7415876B2 (ja) |
CN (1) | CN114530960B (ja) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018051526A1 (ja) | 2016-09-16 | 2018-03-22 | 株式会社東芝 | 回転電機及び車両 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59136056A (ja) * | 1983-01-26 | 1984-08-04 | Hitachi Ltd | 永久磁石界磁直流機及びその製造方法 |
JP3541582B2 (ja) * | 1996-10-04 | 2004-07-14 | セイコーエプソン株式会社 | モータ |
JP2002078259A (ja) * | 2000-08-31 | 2002-03-15 | Yamaha Motor Co Ltd | 永久磁石回転子 |
JP3871873B2 (ja) | 2000-10-18 | 2007-01-24 | 株式会社東芝 | 永久磁石型回転子 |
US20070284960A1 (en) * | 2006-06-12 | 2007-12-13 | Remy International, Inc. | Magnet for a dynamoelectric machine, dynamoelectric machine and method |
DE112007001339T5 (de) * | 2006-06-12 | 2009-05-20 | REMY TECHNOLOGIES LLC., Pendleton | Magnet für eine dynamoelektrische Maschine, dynamoelektrische Maschine und Verfahren |
US20130127280A1 (en) * | 2010-07-30 | 2013-05-23 | Hitachi, Ltd. | Electric rotating machine and electric vehicle using the same |
JP6055189B2 (ja) * | 2012-03-01 | 2016-12-27 | 株式会社日立産機システム | 永久磁石式回転電機 |
JP5971142B2 (ja) | 2013-02-05 | 2016-08-17 | トヨタ自動車株式会社 | 回転電機の磁石埋め込み型ロータおよび回転電機 |
CN104753212A (zh) * | 2013-12-25 | 2015-07-01 | 联合汽车电子有限公司 | 混合磁钢转子及具有该转子的永磁同步电机 |
JP6517469B2 (ja) * | 2014-02-25 | 2019-05-22 | 東芝インフラシステムズ株式会社 | 永久磁石回転電機システム |
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2020
- 2020-11-04 JP JP2020184675A patent/JP7415876B2/ja active Active
-
2021
- 2021-10-28 CN CN202111259046.1A patent/CN114530960B/zh active Active
- 2021-11-02 US US17/517,169 patent/US11682936B2/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2018051526A1 (ja) | 2016-09-16 | 2018-03-22 | 株式会社東芝 | 回転電機及び車両 |
Also Published As
Publication number | Publication date |
---|---|
US11682936B2 (en) | 2023-06-20 |
US20220140675A1 (en) | 2022-05-05 |
CN114530960A (zh) | 2022-05-24 |
CN114530960B (zh) | 2024-05-17 |
JP2022074552A (ja) | 2022-05-18 |
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