Rotor Core, Rotor, Rotary Electric Machine, And Method For Designing Rotor Core

Abstract: A rotor core (31) is formed with a plurality of third flux barriers (37) provided corresponding to at least one magnetic pole (33) among a plurality of magnetic poles (33). In the rotor core (31), a first insertion hole (34f) is formed into which a permanent magnet (32) (front magnet (32f)) is inserted, said permanent magnet (32) being disposed toward the front F side among the respective magnetic poles (33). The third flux barriers (37) are each provided at a position facing a first side surface on the radially outer side of the rotor core (31) among the side surfaces facing the short direction of the first insertion hole (34f) and are connected to the first side surface.

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