HEAT PUMP DEVICE

A heat pump device includes: a compressor (1) that compresses a refrigerant; a motor (8) that drives the compressor; a wiring switching unit (33) that switches a wiring structure of the motor (8); an inverter (9) that applies a desired voltage to the motor (8); and an inverter control unit (10) that generates a PWM signal for driving the inverter (9), that includes, as an operation mode, a heating operation mode in which a heating operation is performed on the compressor (1) and a normal operation mode in which a refrigerant is compressed by performing a normal operation on the compressor (1), and that controls a switching operation of the wiring switching unit (33) in accordance with an operation mode.