Title:
PERMANENT MAGNET AUXILIARY SYNCHRONOUS RELUCTANCE MOTOR AND ELECTRIC VEHICLE PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2019/174326
Kind Code:
A1
Abstract:
A permanent magnet auxiliary synchronous reluctance motor and an electric vehicle provided with the same; the permanent magnet auxiliary synchronous reluctance motor comprises a stator portion (20) and a rotor portion (10); the stator portion (20) comprises a stator core and a winding (50) embedded in the stator core, and the stator core is provided thereon with stator teeth (21) and stator grooves.
The rotor portion (10) is disposed within the stator portion (20), and a rotor body of the rotor portion (10) is opened thereon with a permanent magnet groove group, a plurality of permanent magnet groove groups being provided; the plurality of permanent magnet groove groups are uniformly disposed along the circumferential direction of the rotor body, and each permanent magnet groove group is internally provided with a multi-layer permanent magnet groove; the distance between end portions of the permanent magnet grooves between adjacent permanent magnet grooves group is smaller than or equal to the width of a stator tooth boot (30) of the stator teeth (21); two or three grooves are provided per pole and per phase of the motor. The present solution may effectively reduce the blocking of magnetic flux on the stator by the end portions between the permanent magnet groove groups, increase the minimum torque in instantaneous torque, reduce motor torque ripple, reduce motor noise, and increase motor efficiency.
Inventors:
HU YUSHENG (CN)
CHEN BIN (CN)
XIAO YONG (CN)
TONG TONG (CN)
LU SUHUA (CN)
CHEN BIN (CN)
XIAO YONG (CN)
TONG TONG (CN)
LU SUHUA (CN)
Application Number:
PCT/CN2018/119875
Publication Date:
September 19, 2019
Filing Date:
December 07, 2018
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
H02K1/14; H02K29/03; H02K1/27
Foreign References:
| CN108322006A | 2018-07-24 | |||
| CN208094415U | 2018-11-13 | |||
| CN104600938A | 2015-05-06 | |||
| CN104600938A | 2015-05-06 | |||
| CN102761221A | 2012-10-31 | |||
| US20130320797A1 | 2013-12-05 | |||
| CN103166407A | 2013-06-19 |
Other References:
See also references of EP 3767809A4
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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