| 摘要 |
PURPOSE:To reduce the thickness of a coreless brushless motor by containing a magnetoelectric transducer pellet for detecting a magnetic field of a rotor magnet in the recess of a stator yoke, and interposing a flexible printed circuit sheet between a stator yoke and a drive coil. CONSTITUTION:A recess 34 is formed on a stator yoke 11, and a magnetoelectric transducer such as a Hall element pellet 35 is contained in the recess 34. A flexible printed circuit sheet 36 connected with the pellet 35 is interposed and bonded by an adhesive between a stator yoke 11 and a drive coil block 21. The rotating position of a rotor magnet 19 is detected by the pellet 35, thereby switching a drive current to the coil. |
