| 摘要 |
PROBLEM TO BE SOLVED: To efficiently perform cooling even when a cooling storage box is used as a freezer as well as when used as a refrigeration.SOLUTION: A cooling storage box capable of being used not only as a freezer but also as a refrigerator includes: a refrigeration circuit in which a first capillary tube 51A and a second capillary tube 51B having a flow rate of refrigerant more than that of the first capillary tube 51A are aligned in parallel between a condenser 32 and an evaporator 33; and a three-way valve 45 that switches between a first refrigerant passage continuing from the condenser 32 to the evaporator 33 through the first capillary tube 51A, and a second refrigerant passage continuing from the condenser 32 to the evaporator 33 through the second capillary tube 51B. When used as a freezer, the cooling storage box controls the three-way valve 45 to switch to the first refrigerant passage, and when used as a refrigerator, controls the three-way valve 45 to switch to the second refrigerant passage.SELECTED DRAWING: Figure 3 |
