Freezing device

A freezing device including a compressor that compresses sucked refrigerant using a compression mechanism and discharges compressed refrigerant, the freezing device comprising:

• a compressor including
• a motor that drives the compression mechanism,
• a low pressure unit in which the sucked refrigerant flows,
• a compression space in which the refrigerant flowing in the low pressure unit is compressed,
• a high pressure unit in which the refrigerant compressed in the compression space flows,
• a communication flow path through which the low pressure unit and the high pressure unit communicate, and
• a flow control valve that is provided in the communication flow path and that controls a flow rate of the refrigerant flowing through the communication flow path;
• an inverter that supplies a voltage to the compressor and drives or stops the motor;
• and
• a controller configured to control the inverter and the flow control valve,
• wherein
• the controller performs
• in stop control in which an operation of the compressor is stopped, braking control in which driving of the compression mechanism is prevented or suppressed by controlling the inverter, and
• pressure equalization control in which pressure in the high pressure unit is equalized with pressure in the low pressure unit by opening the flow control valve.