Patent ID: 10574103

Abstract:
This interior magnet rotary electric machine (1) is provided with a rotor (2) that has a rotor core (11) having two sets of permanent magnets (12, 13) embedded therein, and with a stator (3) that is disposed facing the rotor (2). The two sets of permanent magnets (12, 13) each comprise a pair of magnets (12a, 12b, 13a, 13b) of like polarity disposed adjacently along the circumferential direction of the rotor 2. In the rotor core (11), magnet embedding holes (11b), which accommodate the magnets (12a, 12b, 13a, 13b) of like polarity, are formed for each of the magnets of like polarity. The thickness (a), in the rotor (2) circumferential direction, of the portions (18) of the rotor core (11) between like poles is less than the thickness (b) of the portions (19) of the rotor core (11) between unlike poles.