| 摘要 |
<p>The present invention is to provide an electrical rotation machine which has a detection element and a detection substrate for detecting the rotation of a rotor and can be miniaturized. A motor (1) has a ring-shaped stator (4); a rotor (3) arranged inside the ring of the stator (4) and rotating on a central axis (X); a sensor (11) for detecting the rotation of the rotor (3); and a sensor substrate (7) on which the sensor is mounted. The sensor (11) and the sensor substrate (7) are arranged outward from the stator (4) along the central axis (X). The sensor (11) is a reflection type optical sensor.</p> |
