Fan motor for air conditioner

An air conditioner, comprising:

• an indoor unit and an outdoor unit configured to perform a cooling or heating operation by circulating refrigerant between the indoor unit and the outdoor unit;
• a fan, disposed in one of the indoor unit and the outdoor unit, configured to absorb or release heat generated in the cooling or heating operation;
• and
• a fan motor, disposed in the one of the indoor unit and the outdoor unit, configured to control an air volume of the fan, the fan motor including:
• a stator, and a rotor, rotatably installed in an inside of the stator, the rotor including:
• a rotor shaft,
• a plurality of rotor cores, including a first rotor core, a second rotor core, and a third rotor core, arranged in a circumferential direction about a center of the rotor shaft,
• a plurality of permanent magnets, including a first permanent magnet and a second permanent magnet, the first permanent magnet being disposed between the first rotor core and the second rotor core and the second permanent magnet being disposed between the second rotor core and the third rotor core, and
• an injection-molded supporting member, disposed between the first rotor core and the rotor shaft, configured to support the rotor.