Axial gap rotating electrical machine and rotor used therefor

摘要

In the axial gap rotating electrical machine, the rotor includes a rotor yoke that is formed by wrapping amorphous ribbon wound toroidal core, which is obtained by winding an amorphous magnetic metal ribbon into a toroidal core. Magnets having plural poles are circumferentially disposed on a stator-facing surface of the amorphous ribbon wound toroidal core.

主权项

1. An axial gap rotating electrical machine in which a rotor and a stator are disposed so as to be opposed to each other with an air gap between the rotor and the stator in a direction parallel to an axis line of a rotor shaft, comprising:
the rotor having a rotor yoke configured by amorphous ribbon wound toroidal core; and permanent magnets which are mounted on a stator-facing surface of the amorphous ribbon wound toroidal core and disposed in the circumferential direction of the amorphous ribbon wound toroidal core, the magnets being configured by plates, wherein the amorphous ribbon wound toroidal core is formed by directly being wound onto the rotor shaft thereby to be directly mounted onto the rotor shaft, wherein a winding start of the amorphous ribbon is fastened to the rotor shaft and a winding end of the amorphous ribbon is fastened to the amorphous ribbon wound toroidal core, wherein the amorphous ribbon wound toroidal core is impregnated with resin, wherein the impregnated resin coats a surface of the amorphous ribbon wound toroidal core at a side where the rotor magnets are disposed, wherein a surface of the impregnated resin on the surface of the amorphous ribbon wound toroidal core is substantially flush with or slightly lower than the surfaces of the magnets, wherein the amorphous ribbon wound toroidal core and the magnets are integrally bonded together by the impregnated resin, and wherein interlayer insulation is provided at each layer of the amorphous ribbon wound toroidal core by the impregnated resin.