Title:
HARMONIC MAGNETIC FIELD DRIVING ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2023/168920
Kind Code:
A1
Abstract:
A harmonic magnetic field driving electric motor. In the harmonic magnetic field driving electric motor, A, several tooth slots are arranged on a stator lamination, and the number of slots is Z; B, in a circumferential 360-degree mechanical space of a stator, stator windings are divided into m phases according to a connection rule that is set; C, a stator assembly having windings is independently arranged in a free space, a constant direct current is introduced into a winding of any phase, and in the circumferential 360-degree mechanical space of the stator, the number of formed pole pairs of a phase winding magnetic field is Pm; D, the number of wire packs included in each phase of winding is k = n × Pm, where n = 1, 2, 3 ...; E, rotor magnetic steel is sequentially arranged in a circumferential direction according to the sequence of an N pole and an S pole, and in a circumferential 360-degree mechanical space of a rotor, the number of formed pole pairs of the rotor magnetic steel is Pr; and F, in a combined space of the circumferential 360-degree mechanical spaces of the stator and the rotor, an electric motor air gap is formed. The number Pr of pole pairs of the rotor magnetic steel of the harmonic magnetic field driving electric motor must satisfy: Pr ＝ Z ± Pm, wherein the number of stator slots of the harmonic magnetic field driving electric motor is Z ＝ m × k, and double-layer windings are used.
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Inventors:
ZHOU JIANMIN (CN)
XU HENGSHUAI (CN)
HE HAILIANG (CN)
LIU PEIHAI (CN)
XU HENGSHUAI (CN)
HE HAILIANG (CN)
LIU PEIHAI (CN)
Application Number:
PCT/CN2022/117668
Publication Date:
September 14, 2023
Filing Date:
September 07, 2022
Export Citation:
Assignee:
NINGBO HENGSHUAI CO LTD (CN)
International Classes:
H02K1/16
Foreign References:
| CN113890220A | 2022-01-04 | |||
| US20020190587A1 | 2002-12-19 | |||
| CN217063429U | 2022-07-26 | |||
| CN114598082A | 2022-06-07 | |||
| CN102570753A | 2012-07-11 | |||
| CN107104567A | 2017-08-29 |
Attorney, Agent or Firm:
NINGBO TIANYI PATENT AGENT LTD. (CN)
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