| 摘要 |
PURPOSE:To start a motor smoothly by shielding magnetic flux leaking from a permanent magnet that rotates an agitator and by cutting off the effect of an electric motor on a yoke. CONSTITUTION:A permanent magnet 1 is held by a rotary shaft 3 through a strong magnetic substance 2 made of iron. The rotation of the permanent magnet 1 rotates a magnetic agitator 30 in a container 20 set above the permanent magnet to mix liquid 21. The magnetic flux of the permanent magnet 1 toward a yoke 5 is shielded by the strong magnetic substance 2, balancing the rotation of an electric motor to facilitate the starting of the motor. |
