Rotor of motor

摘要: PROBLEM TO BE SOLVED: To fully obtain a rotor of motor which has high cooling efficiency and circulates air or refrigerant in the motor. SOLUTION: A core 8 constitutes 2 through-holes 12, pierce axial direction These through- holes 12 are twisted with respect to motor, their circumferential positions shift. such as this is constituted by laminating silicon steel plates, so that hole may shift regular direction. Efficiency becomes high, since caused flow circulate inside action direction, when rotated.