| 摘要 |
PROBLEM TO BE SOLVED: To provide a brushless motor with improved reliability capable of preventing drive failures of the brushless motor by improving the accurate position accuracy of a Hall sensor IC.SOLUTION: A brushless motor 1 is formed with two projections 32j and 32h protruded from a coil plate 32 toward an engagement recessed part 32k. The projections 32j and 32h are made abut on a Hall sensor IC 45 on a circuit board 31, that is inserted into the engagement recessed part 32k from a notch part 10b. Thereby, because the Hall sensor IC 45 is held in a circumferential direction by the projections 32j and 32h of the coil plate 32, accurate positioning of the Hall sensor IC 45 can be performed via the coil plate 32, and due to improvement in detection accuracy for a magnetic pole of a magnet 23 in a rotor 20, drive failures of the brushless motor 1 can be reduced. |
