WO2023195076A1 - 電動機、送風機および空気調和装置 - Google Patents

電動機、送風機および空気調和装置 Download PDF

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Publication number
WO2023195076A1
WO2023195076A1 PCT/JP2022/017114 JP2022017114W WO2023195076A1 WO 2023195076 A1 WO2023195076 A1 WO 2023195076A1 JP 2022017114 W JP2022017114 W JP 2022017114W WO 2023195076 A1 WO2023195076 A1 WO 2023195076A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnet
rotor
electric motor
rare earth
bonded magnet
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.)
Ceased
Application number
PCT/JP2022/017114
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
隆徳 渡邉
和慶 土田
貴也 下川
諒伍 ▲高▼橋
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2024513596A priority Critical patent/JP7706645B2/ja
Priority to US18/846,863 priority patent/US20250211043A1/en
Priority to CN202280094377.0A priority patent/CN118947043A/zh
Priority to PCT/JP2022/017114 priority patent/WO2023195076A1/ja
Publication of WO2023195076A1 publication Critical patent/WO2023195076A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • H02K1/278—Surface mounted magnets; Inset magnets
    • 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
    • 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
    • H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
    • H02K1/2733—Annular 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
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • H02K15/035—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets on the rotor
    • 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

Definitions

  • a motor rotor having two types of permanent magnets with different magnetic properties is known.
  • the rotor described in Patent Document 1 includes an annular ferrite bond magnet and an annular rare earth bond magnet provided on the outer circumferential side of the rotor.
  • FIG. 3 is a flowchart showing a method for manufacturing a rotor according to the first embodiment.
  • FIG. 3 is a schematic diagram showing a second mold used in the rotor manufacturing method of the first embodiment.
  • the stator core 61 has an annular yoke 61a centered on the central axis Ax, and a plurality of teeth 61b extending radially inward from the yoke 61a.
  • the teeth 61b are arranged at equal angular intervals in the circumferential direction.
  • the teeth 61b face the outer periphery 1c of the rotor 1 with an air gap G interposed therebetween.
  • the number of teeth 61b is 12, but is not limited to 12 and may be 2 or more.
  • the rotor magnet 50 has a stator facing portion 51 and an overhang portion 52 in the axial direction.
  • Stator facing portion 51 faces stator core 61 via an air gap.
  • Overhang portion 52 protrudes from stator core 61 in the axial direction.
  • the rotor magnet 50 has a polar anisotropic orientation, and the rare earth bonded magnet 30 is arranged at the center of the pole. Therefore, it is possible to suppress a decrease in surface magnetic flux density due to a small amount of rare earth bonded magnet 30 used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
PCT/JP2022/017114 2022-04-05 2022-04-05 電動機、送風機および空気調和装置 Ceased WO2023195076A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2024513596A JP7706645B2 (ja) 2022-04-05 2022-04-05 電動機、送風機および空気調和装置
US18/846,863 US20250211043A1 (en) 2022-04-05 2022-04-05 Motor, blower, and air conditioner
CN202280094377.0A CN118947043A (zh) 2022-04-05 2022-04-05 电动机、送风机以及空调装置
PCT/JP2022/017114 WO2023195076A1 (ja) 2022-04-05 2022-04-05 電動機、送風機および空気調和装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/017114 WO2023195076A1 (ja) 2022-04-05 2022-04-05 電動機、送風機および空気調和装置

Publications (1)

Publication Number Publication Date
WO2023195076A1 true WO2023195076A1 (ja) 2023-10-12

Family

ID=88242673

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/017114 Ceased WO2023195076A1 (ja) 2022-04-05 2022-04-05 電動機、送風機および空気調和装置

Country Status (4)

Country Link
US (1) US20250211043A1 (https=)
JP (1) JP7706645B2 (https=)
CN (1) CN118947043A (https=)
WO (1) WO2023195076A1 (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7531751B1 (ja) * 2023-11-29 2024-08-09 三菱電機株式会社 ロータおよび永久磁石モータ
WO2025225560A1 (ja) * 2024-04-26 2025-10-30 ダイキン工業株式会社 モータ、空気調和装置、及びモータの製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016219607A (ja) * 2015-05-21 2016-12-22 中川電化産業株式会社 磁石およびマグネットロータ
WO2018134988A1 (ja) * 2017-01-23 2018-07-26 三菱電機株式会社 回転子、電動機、空気調和装置、および回転子の製造方法
WO2020129123A1 (ja) * 2018-12-17 2020-06-25 三菱電機株式会社 回転子、電動機、送風機、及び空気調和機、並びに回転子の製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016219607A (ja) * 2015-05-21 2016-12-22 中川電化産業株式会社 磁石およびマグネットロータ
WO2018134988A1 (ja) * 2017-01-23 2018-07-26 三菱電機株式会社 回転子、電動機、空気調和装置、および回転子の製造方法
WO2020129123A1 (ja) * 2018-12-17 2020-06-25 三菱電機株式会社 回転子、電動機、送風機、及び空気調和機、並びに回転子の製造方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7531751B1 (ja) * 2023-11-29 2024-08-09 三菱電機株式会社 ロータおよび永久磁石モータ
WO2025115138A1 (ja) * 2023-11-29 2025-06-05 三菱電機株式会社 ロータおよび永久磁石モータ
WO2025225560A1 (ja) * 2024-04-26 2025-10-30 ダイキン工業株式会社 モータ、空気調和装置、及びモータの製造方法
JP2025168054A (ja) * 2024-04-26 2025-11-07 ダイキン工業株式会社 モータ、空気調和装置、及びモータの製造方法

Also Published As

Publication number Publication date
US20250211043A1 (en) 2025-06-26
JP7706645B2 (ja) 2025-07-11
CN118947043A (zh) 2024-11-12
JPWO2023195076A1 (https=) 2023-10-12

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