DE112021001075T5 - Rotor - Google Patents

Rotor Download PDF

Info

Publication number
DE112021001075T5
DE112021001075T5 DE112021001075.1T DE112021001075T DE112021001075T5 DE 112021001075 T5 DE112021001075 T5 DE 112021001075T5 DE 112021001075 T DE112021001075 T DE 112021001075T DE 112021001075 T5 DE112021001075 T5 DE 112021001075T5
Authority
DE
Germany
Prior art keywords
magnet
rotor
radially outer
rotor core
permanent magnets
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.)
Pending
Application number
DE112021001075.1T
Other languages
German (de)
English (en)
Inventor
Masanori Ozaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Publication of DE112021001075T5 publication Critical patent/DE112021001075T5/de
Pending legal-status Critical Current

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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
    • 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
    • H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
    • H02K1/246—Variable reluctance rotors
    • 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
    • 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
    • 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
    • H02K1/2746—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 arranged with the same polarity, e.g. consequent pole type
    • 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
DE112021001075.1T 2020-02-17 2021-02-16 Rotor Pending DE112021001075T5 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020-024208 2020-02-17
JP2020024208A JP7367552B2 (ja) 2020-02-17 2020-02-17 ロータ
PCT/JP2021/005604 WO2021166873A1 (ja) 2020-02-17 2021-02-16 ロータ

Publications (1)

Publication Number Publication Date
DE112021001075T5 true DE112021001075T5 (de) 2022-12-01

Family

ID=77392103

Family Applications (1)

Application Number Title Priority Date Filing Date
DE112021001075.1T Pending DE112021001075T5 (de) 2020-02-17 2021-02-16 Rotor

Country Status (5)

Country Link
US (1) US12218547B2 (https=)
JP (1) JP7367552B2 (https=)
CN (1) CN115104240B (https=)
DE (1) DE112021001075T5 (https=)
WO (1) WO2021166873A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3146247A1 (fr) * 2023-02-27 2024-08-30 Commissariat à l'Energie Atomique et aux Energies Alternatives Montage réversible d’aimant permanent dans une machine électrique
CN120454351A (zh) * 2024-02-07 2025-08-08 台达电子工业股份有限公司 聚磁转子结构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019041530A (ja) 2017-08-28 2019-03-14 株式会社デンソー モータ
JP2020024208A (ja) 2017-11-02 2020-02-13 カシオ計算機株式会社 アンテナ装置および時計

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002078259A (ja) * 2000-08-31 2002-03-15 Yamaha Motor Co Ltd 永久磁石回転子
JP2004357468A (ja) * 2003-05-30 2004-12-16 Matsushita Electric Ind Co Ltd 電動機
CN102738929B (zh) * 2007-11-28 2014-08-20 阿斯莫有限公司 埋入磁铁型电动机
JP2013247783A (ja) * 2012-05-25 2013-12-09 Jtekt Corp ロータ及びこれを備えた回転電機
WO2014045445A1 (ja) * 2012-09-24 2014-03-27 三菱電機株式会社 永久磁石埋込型電動機
JP6025683B2 (ja) 2013-09-19 2016-11-16 三菱電機株式会社 埋込磁石型モータ
WO2015104956A1 (ja) * 2014-01-08 2015-07-16 三菱電機株式会社 回転電機
WO2016042720A1 (ja) 2014-09-16 2016-03-24 パナソニックＩｐマネジメント株式会社 電動機
CN205123431U (zh) * 2015-11-05 2016-03-30 青岛万宝压缩机有限公司 一种定子、分装式永磁电动机及全封闭变频制冷压缩机
JP2019126102A (ja) 2016-05-11 2019-07-25 三菱電機株式会社 回転子および回転電機
CN106059142B (zh) * 2016-06-29 2019-02-19 苏州爱知科技有限公司 一种内置式永磁同步电机的转子结构
JP6879140B2 (ja) 2017-09-15 2021-06-02 トヨタ自動車株式会社 回転電機
JP6901371B2 (ja) * 2017-10-03 2021-07-14 トヨタ自動車株式会社 回転電機のロータ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019041530A (ja) 2017-08-28 2019-03-14 株式会社デンソー モータ
JP2020024208A (ja) 2017-11-02 2020-02-13 カシオ計算機株式会社 アンテナ装置および時計

Also Published As

Publication number Publication date
CN115104240A (zh) 2022-09-23
JP7367552B2 (ja) 2023-10-24
CN115104240B (zh) 2026-01-13
WO2021166873A1 (ja) 2021-08-26
JP2021129471A (ja) 2021-09-02
US20220393531A1 (en) 2022-12-08
US12218547B2 (en) 2025-02-04

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Legal Events

Date Code Title Description
R012 Request for examination validly filed