ROTOR FOR DRIVE MOTOR

摘要

A rotor is provided that includes a rotor core formed in a cylindrical shape so as to be disposed and rotatable in a hollow portion of a hollow cylinder of a stator and a rotating shaft that penetrates a rotational center of the rotor core and rotates together with the rotor core accordingly. Furthermore, permanent magnets are disposed along a circumference of the rotor core and are each divided into a plurality of individual units along an axial direction of the rotor core. In particular, the plurality of individual units includes an intermediate permanent magnet positioned at a center portion in the axial direction. This intermediate permanent magnet is made of a material having coercive force higher than that of the other individual units.

主权项

1. A rotor for a drive motor, comprising:
a rotor core formed in a cylindrical shape so as to be disposed and rotatable in a hollow portion of a stator; a rotating shaft that penetrates a rotational center of the rotor core and rotates together with the rotor core; and permanent magnets disposed along a circumference of the rotor core, wherein the permanent magnets are divided into a plurality of individual units along an axial direction of the rotor core, the permanent magnets including an intermediate unit positioned at a center portion along the axial direction of the rotor core, wherein the intermediate unit is made of a material having a coercive force higher than that of the remaining individual units of each permanent magnet.