| 摘要 |
PURPOSE:To miniaturize a DC motor by obtaining the rotating magnetic field by means of using the rotating magnet of a DC motor and at the same time constituting the coil of a frequency generator on a substrate by means of a spiral etching pattern. CONSTITUTION:A motor is constituted with a stator section 18 provided with a yoke and a driving coil and a rotor section consisting of a rotor magnet 10 which has N and S poles alternately on its outer periphery and a rotor yoke 11. A coil 7 consisting of pattern conductors is laid on a stator substrate 9 of a frequency generator that stands opposite to the end face of the rotating magnetic poles of the rotor. From this coil 7 output signal is led to the terminals 7c and 7d through print patterns 7a and 7b. With this arrangement DC motor can be miniaturized. |
