| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor structure capable of changing the full length of a brushless DC motor for a small-sized fan blower. SOLUTION: At least one side of a stator yoke is held so as to meet the change of the winding width of an internally fitted annular coil and so as to move in an axial direction, and a ring-shaped spacer which is brought into contact with a front end part of the center yoke is disposed abutting at least one side of the center yoke at a stator yoke center part. A printed wiring board has an arc-shaped slot which penetrates a pole piece, a notch in which the printed wiring board can be fitted is formed at the foot of a main pole of the pole piece. By engaging the arc-shaped slot end part and the notch by rotation after inserting the pole piece to the slot, the printed wiring board and the arc-shaped slot of the printed wiring board are fastened. COPYRIGHT: (C)2004,JPO |
