| 摘要 |
PROBLEM TO BE SOLVED: To make the core structure of a motor, generator, generator-motor or the like smaller in the diametrical direction than a conventional limit. SOLUTION: This core structure is disposed with a permanent magnet 71b in the outer-periphery area of an annular core 71a having a prescribed thickness in the axial direction, a coil 72d in the inner-periphery area of an annular core 72a; and formed with magnetic paths having magnetic fluxes therearound in the inner-periphery area of the annular core 71a and the outer-periphery area of the annular core 72a. The annular cores 71a, 72a are attached with protruding core sections 71c, 71c, 72f, 72f extending in the axial direction, at sections in which the magnetic paths are formed. |
