| 摘要 |
PROBLEM TO BE SOLVED: To provide a spork-type motor device capable of increasing a valid magnetic flux amount to be converted into torque and improving a lamination strength of rotor cores. ! SOLUTION: The motor device comprises: a rotor 4 which is supported in a rotatable manner and in which permanent magnets 2 and rotor cores 3 are disposed radially to a rotation center; and a stator 6 provided in a circumferential direction of the rotor 4. In the rotor cores 3, caulking parts 7 coupling a plurality of electromagnetic steel plates are provided at a stator side and an anti-stator side, respectively. A length direction of a caulking part 7b positioned at the stator side and a radial direction of the rotor are parallel and a length direction of a caulking part 7b positioned at the anti-stator side is orthogonal with the radial direction of the rotor 4, thereby reducing a leakage magnetic flux from the anti-stator side. ! COPYRIGHT: (C)2015,JPO&INPIT |
