| 摘要 |
PROBLEM TO BE SOLVED: To provide a demagnetizer for a permanent magnet capable of demagnetizing the permanent magnet of a motor in a state of not decomposing a rotor assembled into a stator.SOLUTION: A yoke has a hollow body and on one and the other end surfaces, an even number of protrusions are formed. A coil has a first coil and a second coil. The first coil is formed of two first main coil parts and two first sub coil parts. The second coil is formed of two second main coil parts and two second sub coil parts. The first and second main coil parts are arranged and installed while penetrating the yoke from one end surface to the other end surface. The first sub coil part is arranged and installed while penetrating through a pair of protrusions in the circumferential direction of the yoke. |
