Permanent magnet rotor and method of making the same

摘要

A permanent magnet rotor with a rotor core having permanent magnets embedded in slits. The connecting means are at least partly provided at positions inwardly of the longitudinal ends of said slits and/or at least a part of said connecting means are inclined with respect to the direction of magnetization of said permanent magnets. Projections and/or recesses are formed on inside surfaces of slits, and said permanent magnets are formed such that bond magnet is filled in the slits and solidified for connecting said bond magnet with the rotor core. A method of making a permanent magnet rotor with a rotor core having permanent magnets embedded in slits of the rotor core, wherein an angular position of the rotor core during treatment thereof is fixed by using openings of longitudinal ends of the slits.