| 摘要 |
A structure of rotor for a brushless DC motor is provided to maintain the driving of the motor through the smooth turning force of the rotor by increasing the torque increase ratio than the electric current increase. A structure of rotor for a brushless DC motor includes a magnetic unit(12), and a rotor core projection(13). The magnetic unit(12) is formed on the outer surface of a rotor with the predetermined interval. The rotor core projection(13) is projected from a rotor core unit(11) and is formed on the outer surface of a rotor with the predetermined interval, and formed to adjacent to each magnetic unit(12).
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