Refrigerant cycle device

A refrigerant cycle device comprising:

• a compressor configured to compress and discharge a refrigerant;
• first and second utilization side heat exchangers, each 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 while the refrigerant discharged from the compressor bypasses the first utilization side heat exchanger, and the refrigerant evaporated by the second 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 first utilization side heat exchanger and the refrigerant evaporated by the outdoor heat exchanger flows into the refrigerant suction side of the compressor via a refrigerant bypass portion which bypasses the second utilization side heat exchanger in a heating operation mode for heating the fluid,
• 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, the refrigerant flows through the supercool heat exchange portion to the second utilization side heat exchanger in the cooling operation mode,
• the refrigerant bypass portion is configured such that the refrigerant flowing into the receive portion from the condensation heat exchange portion flows out of the receive portion and through the refrigerant bypass portion while bypassing the supercool heat exchange portion in the heating operation mode,
• a refrigerant passage area of the outdoor heat exchanger is decreased in stepwise from an inlet portion toward an outlet portion of the outdoor heat exchanger, and
• the refrigerant bypass portion communicates with the receive portion at a first communication portion, the receive portion communicates with the supercool heat exchange portion at a second communication portion, and the first communication portion is located at a position higher than the second communication portion.