| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a refrigerator excellent in energy saving and ensuring high reliability and high serviceability.SOLUTION: A refrigerator comprises: a heat insulating box having an opening portion; a refrigeration cycle 1S in which a compressor 24, a first radiation route radiating heat of refrigerant and flowing the refrigerant to the opening portion, a second radiation route bypassing the first radiation route, a first switching valve 45 switching between the first and second radiation routes, a cooler 7 in which the refrigerant fed from decompression mechanisms 43a and 43b is evaporated, and a second switching valve 46 switching between refrigerant routes to the first and second decompression mechanisms 43a and 43b; an opening portion temperature sensor 47 detecting a temperature of the opening portion; first and second temperature sensors 48 and 49 detecting temperatures of the first and second decompression mechanisms 43a and 43b; and a control unit detecting whether the refrigerant normally flows to the first radiation route on the basis of the temperature detected by the opening portion temperature sensor 47, and detecting whether the refrigerant flows normally to the decompression mechanisms 43a and 43b on the basis of the temperatures detected by the first and second temperature sensors 48 and 49.</p> |
