Consequent pole type rotor, electric motor, compressor, blower, and air conditioner

摘要

The rotor (2) has a rotor core (21) having a magnet insertion hole (21a) and an opening (21c), and a permanent magnet (22) inserted in the magnet insertion hole (21a) to form a first magnetic pole. Have and. When the first maximum width of the opening (21c) in the direction orthogonal to the radial direction is L1 and the second maximum width of the opening (21c) in the radial direction is L2, the rotor (2) has L1 It satisfies L2. The distance from the opening (21c) to the magnet insertion hole (21a) is the smallest at the magnetic pole center (c1) of the first magnetic pole.