Refrigerant cycle device

A refrigerant cycle device comprising:

• a compressor configured to compress and discharge a refrigerant;
• a utilization side heat exchanger configured to exchange heat between the refrigerant and a fluid to be heat exchanged;
• an outdoor heat exchanger configured to exchange heat between the refrigerant and ambient air;
• and
• a flow passage switch portion configured to switch a refrigerant flow passage, wherein
• the flow passage switch portion switches to a refrigerant flow passage in which heat of the refrigerant discharged from the compressor is radiated by the outdoor heat exchanger and the refrigerant evaporated by the utilization side heat exchanger flows into a refrigerant suction side of the compressor in a cooling operation mode for cooling the fluid, and switches to a refrigerant flow passage in which heat of the refrigerant discharged from the compressor is radiated by the utilization side heat exchanger and the refrigerant evaporated by the outdoor heat exchanger flows into the refrigerant suction side of the compressor in a heating operation mode for heating the fluid, and
• the outdoor heat exchanger is configured to include a condensation heat exchange portion for condensing the refrigerant, a receive portion for separating the refrigerant flowing out of the condensation heat exchange portion into gas and liquid, and a supercool heat exchange portion for supercooling a saturated liquid phase refrigerant flowing out of the receive portion, through which the refrigerant flows in the cooling operation mode, the refrigerant cycle device further comprising
• a refrigerant bypass portion that is configured such that the refrigerant bypasses at least a part of the supercool heat exchange portion in the heating operation mode.