| 摘要 |
PROBLEM TO BE SOLVED: To provide a yoke structure of a thin fan motor, which can thin the winding part of a stator and secure a space for an electronic component between an upper surface of a printed wiring board and the yoke. SOLUTION: A top yoke 1 has a connection hole 1c in the center and a fan-shape yoke 1a, 1b spreading in both sides. A bottom yoke 3 has a hole 3e in the center, a face 3d facing the bottom surface of the top yoke 1 and a coil winding part 3c which forms a barrel 3c with its side face. The fan-shape yoke 3a, 3b which are placed alternately with the yoke 1a, 1b is installed under the coil winding part 3. A bearing is press inserted in the printed circuit board 6 and a bottom yoke 6, a coil 2 and the top yoke 1 are inserted through the bearing. The electronic components are mounted under the top yoke 1a, 1b of the printed circuit board 6. |
