| 摘要 |
PROBLEM TO BE SOLVED: To increase torque using a simplified constitution, without upsizing in a RAM(Para-Axicial-Motor) type electromagnetic rotating machine. SOLUTION: The electromagnetic rotating machine comprises a rotor magnet 6 fixed to a rotating shaft 3, a bearing 5 for supporting the rotating shaft, a circuit board 4 fixed to the bearing, a fixed yoke 1 and a coil member 2 loaded to the fixed yoke. The fixed yoke further includes an internal yoke 1a and an external yoke 1b which are provided opposed with each other, keeping a gap in the rotating shaft direction. Moreover, a one or a plurality of cylindrical recesses 22, 27, and 32 in the rotating shaft direction are formed with at least one end of the internal yoke and external yoke being inserted into the rotor magnet. |
