FLUX-CONCENTRATING TYPE PERMANENT MAGNET MOTOR HAVING U-SHAPED STRUCTURE

WIPO Patent Application WO/2022/257293

A1

A flux-concentrating type permanent magnet motor having a U-shaped structure. The main structure of the permanent magnet motor comprises two components, i.e., a mover and a stator, and the motor can be a linear motor or a rotary motor. The motor is mainly characterized in that the stator (mover) is of a U-shaped structure, the mover (stator) is embedded into the U-shaped stator (mover), and a certain air gap is kept between the mover (stator) and the U-shaped stator (mover). The mover and the stator are provided with a plurality of permanent magnets that are mounted according to a specific mounting mode, and have a strong flux-concentrating effect, such that a magnetic field working point of a main magnetic circuit is remarkably increased, a magnetic flux leakage coefficient is reduced, then a larger thrust density is obtained under smaller volume and weight, and moreover, the permanent magnet motor has a lower cost and a simpler assembly mode. In addition, the number of permanent magnets on the U-shaped stator (mover) is reduced, such that the motor can be simplified into a stator (mover) magnetic-track-free motor structure which is lower in cost, simpler to assemble, and more suitable for long-stroke occasions.

GU CONG (CN)
SHENG TIANTIAN (CN)
ZHANG YUNLONG (CN)

PCT/CN2021/118494

December 15, 2022

September 15, 2021

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SUZHOU SEIDAL INTELLIGENT TECH CO LTD (CN)

H02K41/02; H02K1/06; H02K1/17

CN113328601A	2021-08-31
CN104578637A	2015-04-29
CN209088784U	2019-07-09
CN112803620A	2021-05-14
CN104795956A	2015-07-22
US20090009010A1	2009-01-08

NANJING ZHONGGAO PATENT AGENCY CO., LTD. (CN)

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