A rotor core includes: an annular part around a through hole; a plurality of fan-shaped magnetic pole pieces radially formed around the annular part; and a plurality of magnet holders radially formed between adjacent magnetic pole pieces, and a plurality of first magnetic flux blocking parts formed in respective areas between adjacent magnet holders. The magnet holder includes a second magnetic flux blocking part at an end of the magnetic holder toward the rotating shaft. The rotor core includes two magnetic paths formed between the first magnetic flux blocking part and the two second magnetic flux blocking parts adjacent to the first magnetic flux blocking part. The two magnetic paths branch in different directions toward the annular part from the end of the magnetic pole piece toward the rotating shaft.