| 摘要 |
A brushless DC motor having a printed circuit coil is provided to prevent the printed circuit coil from being transformed and damaged through heat generated upon applying a current to a resistance component of a pattern formed in the printed circuit coil. A brushless DC motor(100) having a printed circuit coil(120) includes a yoke(110), the printed circuit coil, a rotatable magnet(140), a rotor(150), and a cooling fan(160). The printed circuit coil generates magnetic force by forming a pattern(121) serving a wound motor coil. The rotatable magnet is installed to be rotatable by a rotation shaft(130) with facing the printed circuit coil. The rotor is fixed to the rotatable magnet and rotates by induction current by magnetic flux of the fixed magnet and the magnetic force generated in the printed circuit coil. The cooling fan generates blowing force for cooling the printed circuit coil by rotating with the rotor.
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