US 12,249,871 B2
Rotor, motor, blower, air conditioner, and manufacturing method of rotor
Takanori Watanabe, Tokyo (JP); and Hiroki Aso, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 17/796,424
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Mar. 27, 2020, PCT No. PCT/JP2020/014062
§ 371(c)(1), (2) Date Jul. 29, 2022,
PCT Pub. No. WO2021/192236, PCT Pub. Date Sep. 30, 2021.
Prior Publication US 2023/0163648 A1, May 25, 2023
Int. Cl. H02K 1/278 (2022.01); H02K 15/03 (2006.01); F24F 13/00 (2006.01)
CPC H02K 1/278 (2013.01) [H02K 15/03 (2013.01); F24F 13/00 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A rotor comprising:
a rotary shaft; and
a rotor body supported by the rotary shaft,
wherein the rotor body comprises a first permanent magnet and a second permanent magnet,
wherein the second permanent magnet is supported by the rotary shaft,
wherein the first permanent magnet has a plurality of pillar parts arranged at intervals in a circumferential direction of the rotor body and a first overhang part that is in contact with a first end part of the second permanent magnet in an axial direction of the rotary shaft,
wherein the first permanent magnet is supported by the second permanent magnet on an outer side of the second permanent magnet, and
wherein the first overhang part and the first end part are joined to each other.