Rotor of rotating electrical machine

A rotor of a rotating electrical machine, comprising:

• a rotor core;
• a plurality of magnetic pole portions arranged along a circumferential direction;
• and
• a plurality of arc magnets constituting the magnetic pole portions, wherein
• each magnetic pole portion includes a magnet portion of at least two layers along a radial direction,
• the magnet portion includes:
• an outer diameter side magnet portion including at least one of the arc magnets arranged to protrude inward in the radial direction;
• and
• an inner diameter side magnet portion including at least a pair of the arc magnets arranged to protrude inward in the radial direction,
• when a central axis of each of the magnetic pole portions is set as a d-axis and an axis separated by 90° in electrical angle from the d-axis is set as a q-axis, the rotor core includes in a front view:
• an outer diameter side magnet insertion hole into which the at least one of the arc magnets constituting the outer diameter side magnet portion is inserted;
• an inner diameter side magnet insertion hole into which the at least one pair of the arc magnets constituting the inner diameter side magnet portion is inserted, and
• a refrigerant flow path hole provided between the outer diameter side magnet portion and the inner diameter side magnet portion to overlap the d-axis, and
• a minimum width of a magnetic path formed between the outer diameter side magnet insertion hole and the refrigerant flow path hole is equal to or larger than a minimum width of a magnetic path formed between the outer diameter side magnet insertion hole and the inner diameter side magnet insertion hole.