REFRIGERATION CYCLE DEVICE FOR CELL TEMPERATURE ADJUSTMENT

摘要

PROBLEM TO BE SOLVED: To provide a refrigeration cycle device for cell temperature adjustment that can efficiently cool a cell 20 by preventing a high pressure rise and preventing a coolant and oil from being released beyond a refrigeration cycle.SOLUTION: A refrigeration cycle device for cell temperature adjustment comprises: a pressure relief valve 10 that releases a coolant held in a compressor 1 to the outside of the compressor 1 by opening a valve when a pressure of the coolant exceeds a predetermined pressure; a condenser 2 for dissipating heat of the coolant having been compressed; an expansion valve 3 for expanding the coolant that has passed through the condenser 2; an evaporator 4 for allowing evaporation of the expanded coolant; a cell 20 whose temperature is adjusted by a fluid subjected to heat exchange with the condenser 2 and/or the evaporator 4; a bypass circuit 7 for allowing the coolant to flow therethrough by bypassing at least the expansion valve 3 from a high pressure side to a low pressure side; and a high pressure suppression valve 8 for suppressing, upon a high pressure rise, a high pressure by causing the coolant to flow from the high pressure side to the low pressure side via the bypass circuit 7 with a high pressure being set to be equal to or less than a predetermined pressure relevant to the pressure relief valve 10.