Title:
HARMONIC MAGNETIC FIELD DRIVING ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2023/020597
Kind Code:
A1
Abstract:
A harmonic magnetic field driving electric motor, comprising: A. a stator lamination being provided with a plurality of tooth slots, the number of the slots being Z; B. in a 360° mechanical space of the circumference of a stator, a stator winding being divided into m phases according to a set connection rule; C. a stator assembly (2) having the winding being independently placed in a free space, any phase of winding being conducted with a direct-current constant current, and in the 360° mechanical space of the circumference of the stator, the number of pairs of phase winding magnetic field poles formed being Pm; D. the number of wire packets contained in each phase of winding being k = n × Pm (n = 1, 2, 3...); E. permanent magnet rotor magnetic steel (13) being sequentially arranged in a circumferential direction according to the N-pole and S-pole sequence, and in a 360° mechanical space of the circumference of a rotor, the number of pairs of rotor magnetic steel poles formed being Pr; and F. in the 360° mechanical spaces of the circumferences of the stator and the rotor, an electric motor air gap being formed in a combined space, wherein the number of pairs Pr of the rotor magnetic steel poles of the harmonic magnetic field driving electric motor must satisfy: Pr = Z ± Pm; and the number Z of the stator slots of the harmonic magnetic field driving electric motor satisfies: Z = 2 × m × k.
Inventors:
ZHOU JIANMIN (CN)
HE HAILIANG (CN)
XU NINGNING (CN)
LIU PEIHAI (CN)
HE HAILIANG (CN)
XU NINGNING (CN)
LIU PEIHAI (CN)
Application Number:
PCT/CN2022/113443
Publication Date:
February 23, 2023
Filing Date:
August 18, 2022
Export Citation:
Assignee:
NINGBO HENGSHUAI CO LTD (CN)
International Classes:
H02K1/16; H02K1/14; H02K1/27; H02K3/12; H02K3/28
Foreign References:
| CN114598082A | 2022-06-07 | |||
| CN113890220A | 2022-01-04 | |||
| CN102545514A | 2012-07-04 | |||
| CN109888941A | 2019-06-14 | |||
| US20070257566A1 | 2007-11-08 |
Attorney, Agent or Firm:
NINGBO TIANYI PATENT AGENT LTD. (CN)
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