Patent ID: 9564792
Date: 2017-02-07
CPC Classifications: H02K

Claim:
1. An electric motor comprising a rotor and a coiled stator, the rotor being rotatable around a rotation axis and comprising a shaft and two discs mounted fixed in rotation on the shaft and provided with permanent magnets, wherein one external portion of the stator extends along said rotation axis, on the permanent magnets of each disc and radially beyond the disc when starting from the rotation axis, wherein the stator comprises: a plurality of disjointed bars which are made of a magnetically conductive material and of which portions form the outer portion of the stator and a carrier structure maintaining the bars fixed in relation to each other, with the carrier structure being mounted rotatable around the shaft of the motor, rotatable on the shaft of the rotor, axially to the exterior of the two discs wherein the external portion of the stator extends, parallel to the rotational axis of the rotor, axially to the exterior of the discs, up to the level of the carrier structure, and wherein an external maximum diameter of the electric motor, without casing, is substantially equal to an ideal diameter DI, which can be expressed as: wherein: