| 摘要 |
According to the present invention, a refrigerator system comprises: a compressor to compress a gaseous refrigerant into a high-temperature high-pressure condition; a condenser to allow the refrigerant flowing thereinto from the compressor and an external heat source to exchange heat with each other; an expansion valve to expand the refrigerant flowing thereinto from the condenser into a low-temperature low-pressure condition; and a vaporizer to allow the refrigerant flowing thereinto from the expansion valve to exchange heat with heat supplied from an external heat source to convert the refrigerant into steam. The refrigerator system allows the refrigerant discharged from the vaporizer to flow into the compressor. A defrosting start condition detecting system for the refrigerator system comprises: a heating wire member disposed near a surface of the vaporizer; a heating wire temperature measurement sensor to measure a temperature of the heating wire member; and a control unit to set a defrosting start condition based on the temperature measured by the heating wire temperature measurement sensor. |
