| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress the cost of resins in which magnets are embedded while attaining weight reduction in a rotary electric machine rotor.SOLUTION: A rotary electric machine rotor 10 includes: magnet insertion holes 16, 18 and 20 into which magnets 22, 24 and 26 are inserted and which are filled with resins 28, 30 and 32; holes 42 and 48 for weight reduction which are provided for weight reduction and are not filled with resins; and bridge parts 50 and 52 of magnetic substances between the holes 42 and 48 for weight reduction and the magnet insertion holes 16 and 18, the bridge parts 50 and 52 being ruptured by a centrifugal force in the case where a rotary electric machine is rotated, to connect the holes 42 and 48 for weight reduction and the magnet insertion holes 16 and 18.</p> |
