Patent ID: 7579744

Claim:
An axial gap rotating electrical device comprising: a stator having a stator core and a stator coil; and a rotor disposed in an axial direction with respect to the stator, the rotor including a plurality of permanent magnets circumferentially arranged and facing the stator core, a plurality of high strength members each enveloping an entire circumference of a corresponding one of the permanent magnets and being configured to prevent a centripetal force on the corresponding one of the permanent magnets from being transmitted between adjacent ones of the high-strength members during a rotation of the rotor, a plurality of rotor axle retainers with each of the rotor axle retainers having a hole for attaching to a rotor axle, each of the rotor axle retainers being a separate piece and being disposed exclusively radially inward of each of the permanent magnets, and a pair of reinforced retainers attached to the rotor axle in order to secure the rotor axle retainers from both sides of an axial direction of the rotor axle, each of the rotor axle retainers being attached on both sides of the axial direction to the reinforced retainers by an axial direction fixation mechanism inserted through the holes to fix the rotor axle retainers to the rotor axle.