Motor, compressor, and air conditioner

A motor comprising:

• a rotor rotatable about a rotation axis;
• and
• a stator surrounding the rotor so as to form an air gap between the stator and the rotor,
• wherein the rotor has a rotor core having a magnet insertion hole, and a rare earth magnet provided in the magnet insertion hole;
• wherein the rotor core has a plurality of slits on an outer side of the magnet insertion hole in a radial direction about the rotation axis, flux barriers at both ends of the magnet insertion hole in a circumferential direction about the rotation axis, and side slits each of which is formed between a corresponding flux barrier and the plurality of slits in the circumferential direction;
• wherein each of the plurality of slits has a length in the radial direction which is longer than a length in the circumferential direction;
• wherein each of the side slits has a length in the circumferential direction which is longer than a length in the radial direction;
• wherein the plurality of slits have a uniform minimum distance to the magnet insertion hole;
• wherein when the minimum distance is expressed as T and the air gap is expressed as G, 2.75≤T/G≤5.25 is satisfied;
• and
• wherein a side slit minimum distance from the side slit to the magnet insertion hole is shorter than the minimum distance T.