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Inferior permanent magnet motor

專利號
US11177704B2
公開日期
2021-11-16
申請人
SAMSUNG ELECTRONICS CO., LTD.(KR Suwon-si)
發(fā)明人
Taeho Yoon; Junseok Kim; Hyungchul Lee; Byoungsoo Ko; Hongseok Kim
IPC分類
H02K1/27; H02K1/14; F25B1/04; H02K1/02; F04D25/06; H02K3/18
技術(shù)領域
permanent,magnet,flux,rotor,motor,barriers,magnets,stator,interior,θob
地域: Suwon-si

摘要

An interior permanent magnet motor includes a stator provided with a plurality of slots and a rotor rotatably disposed inside the stator. A plurality of permanent magnets of the same polarity are disposed at equal intervals in a circumferential direction inside the rotor. A plurality of flux bathers are provided on left and right sides of one end of each of the plurality of permanent magnets adjacent to an outer circumferential surface of the rotor. A ratio of a number of slots of the stator to a number of magnetic poles of the rotor is 3:2 or 3:4. The number of permanent magnets provided in the rotor is ? of the number of magnetic poles of the rotor.

說明書

The plurality of permanent magnets may be formed of ferrite or rare earth material.

Each of the plurality of permanent magnets may be formed in any one of a V shape, a C shape, and a U shape.

According to another aspect of the disclosure, an interior permanent magnet motor may include a stator provided with a plurality of slots; a rotor rotatably disposed inside the stator; a plurality of permanent magnets disposed at equal intervals in a circumferential direction inside the rotor and having an equal polarity; a rotation shaft disposed at a center of the rotor; and a plurality of left flux barriers and a plurality of right flux barriers provided on left and right sides of one end of each of the plurality of permanent magnets adjacent to an outer circumferential surface of the rotor, wherein a number of the plurality of permanent magnets provided in the rotor is ? of a number of magnetic poles of the rotor.

BRIEF DESCRIPTION OF THE DRAWINGS

These and/or other aspects of the present disclosure will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a cross-sectional view illustrating an interior permanent magnet motor according to the prior art;

FIG. 2 is a cross-sectional view illustrating an interior permanent magnet motor according to an embodiment of the disclosure;

FIG. 3 is a partially enlarged cross-sectional view illustrating an interior permanent magnet motor according to an embodiment of the disclosure;

權(quán)利要求

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