| 摘要 |
PROBLEM TO BE SOLVED: To provide a permanent magnet generator enhancing electromotive force by minimizing an air gap between a permanent magnet of a rotor and a salient pole part of a stator while reducing manufacturing cost. SOLUTION: Tapered surfaces 2a and 2b becoming higher toward an outer circumferential direction are formed on opposite end faces of a permanent magnet 2 in an axial direction. A plurality of permanent magnets 2 are arranged along an inner side face of a cylindrical section 3 of a rotor while being held by an annular bottom side spacer 7 and an opening forward end side spacer 6. An annular retaining plate 9 is arranged on an outside of the opening forward end side spacer 6. When a caulking part 3a provided at an end part of the cylindrical section 3 of a rotor is caulked inward, the opening forward end side spacer 6 is pressed to the permanent magnet 2 side through an annular retaining plate 9 and secured in place and the forward end of the salient pole part of a stator core 11 faces the inner side face of the permanent magnet 2 directly. COPYRIGHT: (C)2005,JPO&NCIPI
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