Title:
MAGNETIC MODULATION RING STRUCTURE, MAGNETIC GEAR ASSEMBLY, AND COMPOSITE ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2022/110866
Kind Code:
A1
Abstract:
Provided are a magnetic modulation ring structure, a magnetic gear assembly and a composite electric motor. The magnetic modulation ring structure comprises a plurality of modulation units, wherein two adjacent modulation units are connected by means of a connecting portion to form the magnetic modulation ring structure that is arranged in an annular gap enclosed by a first rotor structure and a second rotor structure; and each modulation unit is provided with a recess structure that is formed on the side facing the first rotor structure, with two sides of the recess structure respectively forming an arc-shaped shoe portion. The present disclosure solves the problem in the prior art of reduced output torque of a magnetic gear assembly, the reason being that an iron core on a magnetic modulation ring is of a quasi-rectangular structure, which causes a limited magnetic field modulation effect of the magnetic modulation ring having the quasi-rectangular structure and heavy magnetic leakage between iron cores.
Inventors:
HU YUSHENG (CN)
CHEN BIN (CN)
MA XIAOHAO (CN)
LI QUANFENG (CN)
GUI PENGQIAN (CN)
CHEN BIN (CN)
MA XIAOHAO (CN)
LI QUANFENG (CN)
GUI PENGQIAN (CN)
Application Number:
PCT/CN2021/109495
Publication Date:
June 02, 2022
Filing Date:
July 30, 2021
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
H02K49/10; H02K16/00
Foreign References:
| CN112491247A | 2021-03-12 | |||
| CN107196484A | 2017-09-22 | |||
| JP2014015991A | 2014-01-30 | |||
| CN111404342A | 2020-07-10 |
Other References:
ABDELHAMID DALIA ZAKY; KNIGHT ANDREW M.: "The effect of modulating ring design on induction machine with integrated magnetic gear torque", 2017 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), IEEE, 1 October 2017 (2017-10-01), pages 1169 - 1174, XP033246936, DOI: 10.1109/ECCE.2017.8095921
See also references of EP 4175140A4
See also references of EP 4175140A4
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
Download PDF:
Previous Patent: MOTOR ROTOR, PERMANENT MAGNET MOTOR AND ELECTRIC VEHICLE
Next Patent: IMAGE COMPRESSION SAMPLING METHOD AND ASSEMBLY
Next Patent: IMAGE COMPRESSION SAMPLING METHOD AND ASSEMBLY