Patent ID: 8450893

Claim:
A motor structure with rotation detector comprising: a motor casing; a motor stator provided in the motor casing; a bearing provided in the motor casing; a rotating shaft rotatably supported in the motor casing by the bearing; a motor rotor provided to be integrally rotatable with the rotating shaft and including a permanent magnet; and a rotation detector for detecting a rotation angle of the motor rotor, wherein the rotation detector includes: a disc-shaped resolver stator held in the motor casing and having a surface on which a thin-film-shaped coil is formed; and a disc-shaped resolver rotor provided on an end face of the motor rotor and having a surface on which a thin-film-shaped coil is formed, wherein a shield member is provided between the motor rotor and the resolver rotor, the shield member is formed of a non-magnetic conductive material, and the shield member is in contact with an end face of the motor rotor to cover an end face of the permanent magnet.