| 摘要 |
PROBLEM TO BE SOLVED: To improve magnetic flux formation while securing a fastening strength of a rotor core in a magnet embedded rotor in which a pair of magnets are disposed.SOLUTION: The rotor comprises: inner peripheral recesses 71 and 72 including rims 76 and 77 in one rotor magnetic pole 25; a core central part 75 at a side closer from a rotary shaft; outer peripheral recesses 51 and 52 including rims 56 and 57; a core outer peripheral part 55 at a side farther from the rotary shaft; a magnet couple between the core central part 75 and the core outer peripheral part 55; and bridges 46 and 47 of non-magnetic substances. The core central part 75 and the core outer peripheral part 55 are linked to the bridges 46 and 47 between magnets 21 and 26 forming the magnet couple. A plurality of inner peripheral recesses 71 and 72 and a plurality of outer peripheral recesses 51 and 52 are included, respectively. The bridges 46 and 47 are fitted to the plurality of inner peripheral recesses 71 at a side of inner peripheral lock parts 61 and 62, and fitted to the plurality of outer peripheral recesses 51 and 52 at a side of outer peripheral lock parts 81 and 82. The outer peripheral lock parts 61 and 62 are smaller than the inner peripheral lock parts 81 and 82. |
