ROTOR OF MOTOR, MOTOR, AIR HANDLING UNIT, AND MANUFACTURING METHOD OF ROTOR OF MOTOR

摘要

PROBLEM TO BE SOLVED: To provide a rotor of a motor where electric corrosion of a bearing is suppressed by a cheap method.

SOLUTION: In a rotor of a motor according to this invention, a magnet and shaft of the rotor are integrated by a resin part, and roller bearings are arranged on both edge-faces in an axis direction of the resin part formed in an outer circumference of the shaft. The roller bearing comprises: an inner ring which is pressed and fitted into the shaft; an outer ring which is supported by a bearing support part of a stator; and a rolling element which rolls between the inner ring and the outer ring. Either of the roller bearings is a ceramic bearing where at least one of the inner ring, the outer ring, and the rolling element is constituted by an insulating material of ceramics or the like.

COPYRIGHT: (C)2012,JPO&INPIT