Rotor of rotating electrical machine

A rotor of a rotating electrical machine comprising:

• a substantially annular rotor core with a plurality of magnet insertion holes formed along a circumferential direction;
• and
• a plurality of magnetic pole portions including permanent magnets inserted into the plurality of magnet insertion holes, wherein
• the permanent magnet includes:
• an outer diameter side first end portion and an outer diameter side second end portion forming both outer diameter side end portions;
• an inner diameter side first end portion and an inner diameter side second end portion forming both inner diameter side end portions;
• an outer diameter surface which extends from the outer diameter side first end portion to the outer diameter side second end portion and is curved in a convex shape radially inward;
• an inner diameter surface which extends from the inner diameter side first end portion to the inner diameter side second end portion;
• a first end surface which extends from the outer diameter side first end portion to the inner diameter side first end portion;
• and
• a second end surface which extends from the outer diameter side second end portion to the inner diameter side second end portion,
• the magnet insertion hole includes:
• a first abutment surface on which the outer diameter side first end portion of the permanent magnet slidably abuts and which extends in a substantially linear shape;
• and
• a second abutment surface on which the outer diameter side second end portion of the permanent magnet slidably abuts and which extends in a substantially linear shape,
• the first abutment surface and the second abutment surface are arranged such that a first imaginary line which is an extension line of the first abutment surface and a second imaginary line which is an extension line of the second abutment surface intersect at the outer diameter surface side of the permanent magnet, and
• the inner diameter side first end portion and the inner diameter side second end portion of the permanent magnet are located closer to a center side in the circumferential direction of the permanent magnet than the first imaginary line and the second imaginary line.