HARMONIC MAGNETIC FIELD DRIVEN ELECTRICALLY EXCITED MOTOR

WIPO Patent Application WO/2024/021238

A1

A harmonic magnetic field driven electrically excited motor, comprising: A. a stator is provided with a plurality of slots, and the number of slots is Z; B. in a circumferential 360° mechanical space of the stator, a stator winding is divided into m phases according to a set connection rule; C. in a stator assembly provided with the stator winding, any phase of winding of the stator assembly is energized with a direct current constant current, and in the circumferential 360° mechanical space of the stator, the number of phase winding magnetic field pole pairs formed is Pm; D. the number of coils comprised in each phase of stator winding is k=n×Pm(n=1, 2, 3...), and a double-layer winding is used; E. magnetic poles of rotor pole shoes are sequentially arranged in the circumferential direction according to the N-pole and S-pole sequence by means of an excitation winding, and in a circumferential 360° mechanical space of a rotor, the number of magnetic pole pairs of the rotor pole shoes formed is Pr; and F. a motor air gap is formed within a circumferential 360° mechanical space between the stator and the rotor, and the number Pr of magnetic pole pairs of the rotor pole shoes needs to satisfy: Pr=Z±Pm, wherein the number Z of the slots of the stator satisfies Z=m×k.

ZHOU JIANMIN (CN)
XU HENGSHUAI (CN)
HE HAILIANG (CN)
LIU PEIHAI (CN)

PCT/CN2022/117670

February 01, 2024

September 07, 2022

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NINGBO HENGSHUAI CO LTD (CN)

H02K3/52; H02K3/12; H02K3/28; H02K3/48

WO2021189594A1

2021-09-30

CN114598082A	2022-06-07
CN211405627U	2020-09-01
CN217063429U	2022-07-26
CN114726119A	2022-07-08
CN107579606A	2018-01-12

NINGBO TIANYI PATENT AGENT LTD. (CN)

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