| 摘要 |
PURPOSE:To enhance the efficiency of a flat brushless motor by composing the peripheral edge of a stator yoke of the laminate of a flat planar magnetic path material and an insulating layer and arranging a driving winding on the layer to reduce a gap between the magnetic path material of a rotor magnet and a stator yoke. CONSTITUTION:The peripheral edge of a central hole formed at a stator yoke is formed as a laminate by bonding a sheetlike insulating base material 7 by an adhesive 8 to a magnetic path material 8. Simultaneously, a metal foil such as copper foil is bonded on an insulating layer 12 made of a sheetlike insulating material 6 and the material 7. This foil is etched to form a printed pattern layer 11 for wiring for a driving winding and a rotor position detector on the layer 12. |
