Patent ID: 7960884
Filing Date: 2011-06-14
Classification: H02K

Abstract:
1. An axial gap type rotating machine comprising: a housing; a rotating shaft rotatably supported in the housing; a rotor comprising a rotating disk rotatable integrally with said rotating shaft around said rotating shaft as a central axis, and permanent magnets arranged on at least one side of a surface of the rotating disk; and a stator that is fixed to the housing so as to face a surface of said rotor having the permanent magnets, and the stator is spaced from the rotor, wherein stator coils are arranged concentrically around said rotating shaft in spaced relation to each other; wherein magnetic flux generated from the permanent magnets of said rotor intermittently penetrates interiors of said coils disposed concentrically around said rotating shaft as it rotates, wherein said rotating disk comprises concave portions formed at a surface facing said stator and the permanent magnets are disposed in the concave portions so as to have protruding portions that protrude above the surface of said rotating disk, wherein a reinforcing member is provided on a surface of said rotating disk so as to support a side surface of said protruding portions of the permanent magnets, said reinforcing member being made of a non-magnetic material and having a through-hole provided at locations corresponding to the respective locations of the permanent magnets disposed on said rotating disk; and wherein said reinforcing member has a thickness such that a top surface of the reinforcing member is level with or below a top face of the permanent magnets of the rotating disk which are in the respective through-hole.