ROTARY ELECTRIC DEVICE

The invention provides a permanent magnet type rotary electric device capable of reducing weight while maintaining torque characteristics. According to one embodiment, the rotary electric device includes a rotor. The rotor includes a rotation shaft provided rotatable around a central axis, a rotor core (42) including a plurality of core plates laminated and attached to the rotation shaft coaxiallytherewith, a plurality of cavity holes (44a, 44b) each formed to penetrate the rotor core therethrough in an axial direction and opened to the first end surface and the second end surface of the rotor core, respectively, a plurality of permanent magnets (50) accommodated in the cavity holes and extending in the axial direction of the rotor core, and a pair of end plates (60) disposed respectivelyon the first end surface and the second end surface of the rotor core, and including a plurality of vent holes (62a, 62b) communicating at least partially with the cavity holes, respectively. 本发明提供一种永久磁铁型的旋转电机，能够在维持扭矩特性的同时降低重