Patent ID: 9705384
Date: 2017-07-11
CPC Classifications: H02K

Claim:
1. A rotor for a rotating electric machine, the rotor comprising: a magnetic pole core; and a cooling fan including a base plate, which is laser-welded to an axial end face of the magnetic pole core, and a plurality of fan blades extending from the base plate, wherein at least one weld is formed between the base plate of the cooling fan and the magnetic pole core to have a pair of open ends, the weld is substantially C-shaped to include a straight part and a pair of curved parts respectively extending from opposite ends of the straight part, the rotor further comprises a rotating shaft on which the magnetic pole core is fixed, the straight part of the weld extends straight substantially along a radial direction of the rotating shaft, and the curved parts and the open ends of the weld are located on an opposite side of the straight part to an adjacent one of the fan blades in a circumferential direction of the rotating shaft, the adjacent fan blade being closest to the weld among all the fan blades.