Rotor and brushless motor

A rotor comprising:

• a rotor core;
• and
• a plurality of magnets, wherein
• the rotor core includes:
• an annular part around a hole in which a rotating shaft is inserted;
• a plurality of magnetic pole pieces radially formed around the annular part;
• and
• a plurality of magnet holders radially formed between adjacent magnetic pole pieces,
• a plurality of first magnetic flux blocking parts formed outside the annular part and in respective areas between adjacent magnet holders, wherein
• the magnet holder includes a second magnetic flux blocking part at an end of the magnetic holder toward the rotating shaft,
• the magnets are housed in the magnet holders such that the same magnetic poles of adjacent magnets face each other in a circumferential direction of the rotor core,
• 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, and
• the two magnetic paths branch in different directions toward the annular part from the end of the magnetic pole piece toward the rotating shaft.