| 摘要 |
A BLDC(Brushless DC) motor is provided to reduce a material cost of yoke units by punching the yoke units in a thin and long band shape and spirally stacking the yoke units. A BLDC motor includes yoke units(131), a plurality of permanent magnets(130), a rotor(120). One sides of the plurality of permanent magnets are received and coupled in the yoke unit. The rotor includes a plurality of magnetic pole units which are coupled to the other sides of the permanent magnets. The yoke units are stacked in a spiral shape. The BLDC motor further includes a stator(110). The stator is separated from the magnetic pole units to have a predetermined air gap and stacked in a spiral shape. The stator includes a plurality of tooth units(117) protruding toward the magnetic pole units. |
