| 摘要 |
PROBLEM TO BE SOLVED: To obtain a motor by which a signal for the detection of the rotating phase of a rotor is obtained with good efficiency, by a method wherein a magnet which is used to generate a magnetic field for the detection of the rotating phase of the rotor is provided, and a wiring board which receives the magnetic field from the magnet whenever the rotor is turned and which generates the signal for the detection of the rotating phase of the rotor is provided. SOLUTION: A PG magnet 110 for the detection of the rotating phase of a rotating-phase detecting device 100 is faced with a PG coil 120 whenever it is turned. Then, by a board rise part 32 and by a PG coil formation part (a wiring board) at the PG coil 120, one magnetic field is received by a coil pattern at the PG coil 120 per rotation from the PG magnet 110. In this manner, the PG magnet 110 senses one magnetic field with reference to the PG coil 120 whenever a rotor case 10 makes one rotation by the PG coil formation part, and a signal for the detection of the rotating phase is generated. As a result, a PG output can be taken out with good efficiency. |
