COMPRESSOR, ELECTRIC MOTOR, METHOD FOR USING COMPRESSOR, AND METHOD FOR USING ELECTRIC MOTOR

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PROBLEM TO BE SOLVED : To provide an electric motor which is allowed to have a demagnetization yield strength even if an amount of Dy (dysprosium) included in a rare earth magnet used for the electric motor is reduced, and which can suppress the increase in the loss of an inverter main circuit for driving the electric motor. SOLUTION : A compressor according to the present invention comprises : a compression element for compressing a refrigerant; and a hexapole electric motor for driving the compression element, which has rotors arranged by use of neodymium rare earth magnets including iron, neodymium, boron and 4 wt.% or less of dysprosium. SELECTED DRAWING : Figure 23 COPYRIGHT : (C)2019, JPO&INPIT