Electric motor, compressor, fan, and refrigerating and air conditioning apparatus

An electric motor comprising:

• a rotor including a shaft, a rotor core fixed to the shaft, and a permanent magnet fixed to the rotor core;
• and
• a stator located outside the rotor and including a first stator core and a second stator core, the first stator core being located on a first side in an axial direction and including a first tooth extending in a radial direction, the second stator core being located on a second side opposite to the first side in the axial direction and being adjacent to the first stator core in the axial direction, wherein
• the shaft is supported only on the first side,
• a minimum distance from the rotor core to the first stator core in the radial direction is shorter than a minimum distance from the rotor core to the second stator core in the radial direction,
• a minimum distance from a rotation center of the rotor to the first stator core in the radial direction is shorter than a minimum distance from the rotation center of the rotor to the second stator core in the radial direction, and
• the first tooth comprises:
• a main body extending in the radial direction;
• and
• a first tooth end portion including a first portion extending in a circumferential direction and a second portion projecting from the first portion in the radial direction, wherein
• the first stator core comprises a second tooth extending in a radial direction, the second tooth being adjacent to the first tooth in the circumferential direction, wherein
• the second tooth comprises:
• a main body extending in the radial direction;
• and
• a second tooth end portion including a first portion extending in the circumferential direction and a second portion projecting from the first portion in the radial direction,
• the second stator core comprises a third tooth extending in a radial direction, and a fourth tooth extending in a radial direction, the fourth tooth being adjacent to the third tooth in the circumferential direction, wherein
• the third tooth comprises:
• a main body extending in the radial direction;
• and
• a third tooth end portion extending in the circumferential direction,
• the fourth tooth comprises:
• a main body extending in the radial direction;
• and
• a fourth tooth end portion extending in the circumferential direction, and
• in a plane perpendicular to the axial direction, a shape of a first-side slot opening between the first portion of the first tooth end portion and the first portion of the second tooth end portion is the same as a shape of a second-side slot opening between the third tooth end portion and the fourth tooth end portion, wherein
• in the plane perpendicular to the axial direction, a radius defined from the rotation center to the first portion of the first tooth end portion is equal to a radius defined from the rotation center to the third tooth end portion.