| 摘要 |
PURPOSE:To effectively activate a magnetic flux from a permanent magnet and to reduce the size and weight by dispersing permanent magnets in pole arcs without varying the entire contacting area with a yoke, and forming a wide magnetic circuit between paired yokes. CONSTITUTION:A rotor 2 is rotatably mounted inside a yoke 1 for forming a dipole permanent magnet rotary machine. Rare earth metal permanent magnets 4 are dispersed between the inner periphery of the yoke 1 and the pole piece 3 of iron of ferromagnetic metal in pole arcs without varying the entire contacting area with the yoke, and interposed in a slender shape. The effective pole arc theta to the rotor 2 can be obtained by the pieces 3. |
