| 摘要 |
PROBLEM TO BE SOLVED: To improve efficiency of a motor and realize the reduction in thickness by improving a stator structure of the motor. SOLUTION: A tooth portion is integrated with a body portion, and a plurality of collars are formed as integrated rings separately from a body and the tooth portion, respectively. Thereafter, these collars are also disposed and fixed so as to be projected in the circumferential direction on the external circumference of the respective teeth portions. In the axial direction of a rotating shaft, the length of the collar is set larger than the thickness of the tooth portion, and gap of the adjacent collars in the circumferential direction is set to 0.5 mm or less. |
