| 摘要 |
PURPOSE:To facilitate the assembling of a permanent magnet rotary machine, improve the reliability of the same and eliminate ununiform magnetization, by a method wherein a magnetic path upon the magnetization is formed by employing an already incorporated core member and, then, the magnetization is effected. CONSTITUTION:An electric motor is constituted of a pair of permanent magnets 3, fixed to the inner peripheral surface of a yoke 2, a core member 4, supported pivotally by the yoke 2 through bearings, a commutator, provided on the core member 4, brushes, slidingly contacting with the commutator under a condition that they are pushed elastically against the commutator, and the like. The permanent magnet 3 is obtained by magnetizing the base material of magnet, such as ferrite or the like, by employing a magnetizer 7. The motor is assembled by components previously incorporated excluding magnetizing process while magnetizing work is effected by employing the magnetizer 7 while rotating the core member 4.
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