摘要 |
PROBLEM TO BE SOLVED: To provide a rotary electric machine capable of shortening assembly time including a magnetization process and of reducing induced voltage at no load, and to provide a method for manufacturing a rotor applied to the same. SOLUTION: Groups of first and second permanent magnets 31, 33 allocated on first and second yoke portions 19, 23 are respectively held by first and second magnet holders 30, 32. The first and second magnet holders 30, 32 made of non-magnetic metal plates, includes: toroidal portions 30a, 32a allocated in parallel with a plane orthogonal to the center of a shaft 16; a plurality of holding pieces 30b, 32b for covering both end surfaces in the axial direction and the upper surface of the first and second permanent magnets 31, 33, which extend outwardly in the radial direction from the outer circumferential edge portions of the toroidal portions 30a, 32a, are bent so as to extend in the axial direction, and are subsequently bent so as to extend inwardly in the radial direction; and a pair of supporting pieces 30c, 32c for covering both side surfaces in the circumferential direction of the first and second permanent magnets 31, 33, which extend inwardly in the radial direction from both side portions in the circumferential direction of the axially-extending portions of the respective holding pieces 30b, 32b. COPYRIGHT: (C)2009,JPO&INPIT
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