STATOR OF OUTER ROTOR TYPE MOTOR

摘要

A stator of an outer rotor type motor with high productivity and reliability is disclosed. To this end, the stator comprises a helical core having a plurality of stacked layers formed by winding a single metal sheet having a predetermined shape in the helical direction, a base and teeth protruded from the base, an insulator made of electrical insulation material and to surround the helical core, and recesses formed in a base of the helical core to reduce stress due to the winding of the metal sheet and disposed under the teeth.