| 摘要 |
The present invention relates to a mold for a rotor assembly which is capable of automatically aligning a position of balance when inserting a polar anisotropic ring magnet into a core, thereby preventing generation of vibration and a noise when assembling onto a motor. To this end, a rotating shaft is installed at the center, and the mold has the core where the polar anisotropic ring magnet is inserted into. In addition, a groove corresponding to the number of poles of the polar anisotropic ring magnet is formed around an outer circumferential surface of the core in an every predetermined gap. |
