Title:
PERMANENT MAGNET SYNCHRONOUS ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/109294
Kind Code:
A1
Abstract:
Disclosed is a permanent magnet synchronous electric motor comprising an annular rotor (1), an inner annular stator (2) and an outer annular stator (3), wherein the annular rotor (1) comprises N-pole magnets and S-pole magnets that are alternately arranged, each N-pole magnet comprises at least two N-pole magnetic sheets that are arranged and connected in an axial direction, each S-pole magnet comprises at least two S-pole magnetic sheets that are arranged and connected in the axial direction, the inner annular stator (2) and the outer annular stator (3) are connected to the annular rotor (1) in a matching manner, the at least two N-pole magnetic sheets that are arranged and connected in the axial direction are aligned, the at least two S-pole magnetic sheets that are arranged and connected in the axial direction are aligned, and the inner annular stator (2) and the outer annular stator (3) are arranged in a staggered manner in a circumferential direction; or, the inner annular stator (2) and the outer annular stator (3) are aligned in the circumferential direction, the at least two N-pole magnetic sheets arranged and connected in the axial direction and the at least two S-pole magnetic sheets arranged and connected in the axial direction are arranged in a staggered manner in the circumferential direction, and the staggered directions of the at least two N-pole magnetic sheets are the same as those of the at least two S-pole magnetic sheets.
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Inventors:
CHEN ZHI (CN)
LIU YUANYI (CN)
LIU YUANYI (CN)
Application Number:
PCT/CN2019/129087
Publication Date:
June 10, 2021
Filing Date:
December 27, 2019
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H02K16/04; H02K1/14; H02K1/16; H02K3/34; H02K5/24
Foreign References:
| CN102948049A | 2013-02-27 | |||
| CN201307792Y | 2009-09-09 | |||
| CN108494199A | 2018-09-04 | |||
| CN1497818A | 2004-05-19 | |||
| CN109256879A | 2019-01-22 | |||
| JP2003032927A | 2003-01-31 | |||
| JP2008109725A | 2008-05-08 |
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