| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor armature which has a reduced cogging torque and an increased material utilization rate.SOLUTION: A motor armature includes a core and windings wound around the core. The core includes an annular yoke and a plurality of teeth extending radially outwardly from the yoke. Each of the teeth includes a winding portion connected with the yoke, and a tip formed at a distal end of the winding portion. Each tip has circumferential opposite ends extending beyond the winding portion. A slot opening is formed between ends of adjacent tips. Each of the teeth has a slit on a single circumferential side thereof such that one of the ends of the tip is outwardly tilted relative to the other of the ends at an original position and is bendable inwardly about the slit to a deformed position where a width of the slot opening is less than that of the slot opening at the original position.SELECTED DRAWING: Figure 1 |
