| 摘要 |
A rotor (20) of a permanent magnet motor includes a rotor body (24) and a plurality of permanent magnets (32) carried by the rotor body (24). The rotor body (24) has an outside rotor surface (46) with a plurality of dovetail slots (42) formed on the outside rotor surface (46). Each magnet (32) is fit within one of the slots (42), protruding outward of the outside rotor surface (46) in a radial direction. According to a second embodiment, a rotor (120) is provided having a rotor body (124) carrying a plurality of magnets (132) on its outer surface, and end caps (140,142) that are fastened respectively to longitudinal ends of the rotor body (124). The end caps (140,142) each have a angled rim surfaces (164,166) that overhangs an end portion of the outer magnet surface of each of the magnets (132) to retain the magnets (132) onto the rotor body (124). The angled rim surfaces (164,166) and the magnets (132) are configured such that by drawing the end caps (140,12) tightly against the rotor body (124) by use of fasteners (144), the magnets (132) are wedged down onto the rotor body (124) by the angled rim surfaces (164,166). <IMAGE> |
