| 摘要 |
A stator includes an integrated yoke with upper and lower insulators provided on upper and lower ends thereof and stator coils directly wound around the insulators and the yoke. Wherein the yoke has an outer annular member and an inner annular member integrally formed therewith. The upper and lower insulators respectively have two outer rings and two inner rings integrally formed therewith corresponding to the outer and inner annular members of the yoke. Whereby the structure of the stator is simple and manufacturing of the stator is efficient.
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