MOTOR INCLUDING EMBEDDED PERMANENT MAGNET-ROTOR

摘要

An electric motor (10) including a permanent-magnet rotor (17) having embedded magnets (220) held in place by several segments. The embedded magnets are secured by segments (210) including non-circular openings (270) near their centers. Several non-magnetic, non-conductive bars (230) extend through the non-circular openings of the segments (210) to secure the segments (210) in relation to the shaft (80). The motor (10) is capable of producing high torque while only requiring a minimum amount of space.