US 12,316,189 B2
Magnetic flux modulation type magnetic gear
Kodai Okazaki, Tokyo (JP); Junji Kitao, Tokyo (JP); and Yoshihiro Miyama, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 18/008,667
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Dec. 1, 2020, PCT No. PCT/JP2020/044593
§ 371(c)(1), (2) Date Dec. 7, 2022,
PCT Pub. No. WO2022/030031, PCT Pub. Date Feb. 10, 2022.
Claims priority of application No. 2020-131387 (JP), filed on Aug. 3, 2020.
Prior Publication US 2023/0246536 A1, Aug. 3, 2023
Int. Cl. H02K 49/10 (2006.01)
CPC H02K 49/102 (2013.01) 8 Claims
OG exemplary drawing
 
1. A magnetic flux modulation type magnetic gear, comprising:
a ring component, which has pole pieces provided in a torus shape,
a first rotator, which is arranged concentrically with the ring component and on the inside of the ring component, has a plurality of magnetic poles, each provided with a first permanent magnet, and can rotate relative to the pole pieces, setting a center of the ring component as a rotation axis, and
a second rotator, which is arranged concentrically with the ring component and on the outside of the ring component, and has a plurality of magnetic poles, each provided with a second permanent magnet, and can rotate relative to the pole piece, setting the center of the ring component as the rotation axis,
wherein, on the inside of the first rotator, there is provided with a first hole part for storing the first permanent magnet, having inclination of a predetermined angle with respect to a line segment, which shows a magnetic pole center, when viewed from the rotation axis,
wherein a circumference direction thickness size of a bridge between the first hole part of the first rotator and an adjoining hole part is larger than a circumference direction thickness size of a bridge between the second hole part which stores the second permanent magnet of the second rotator and an adjoining hole part.