| 摘要 |
A motor is provided to minimize vibration and control a rotation speed or torque of a rotor or a rotation axis by reducing cogging torque. A motor includes a stator(140) and a PCB(Printed Circuit Board)(150). The stator has a stator core(141) to form a magnetic path, a plurality of teeth(142) formed in the stator core, and bobbins(143) installed in the teeth to wind coils. The PCB is electrically connected to the coils through pins(143d) formed in the bobbins and fixes the stator. At least a part of the PCB corresponds to a shape of the stator. The PCB has expanding units expanded outward at hole parts to insert the pins. The motor further includes a bracket(110) composed of an upper bracket(130) and a lower bracket(120) to form an external shape thereof.
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