To provide a constant-temperature storage which drastically reduces an electric power consumption amount and achieves highly accurate temperature control.
The constant-temperature storage 1 includes a refrigerant circuit 18 constituted by sequentially interconnecting a compressor 20, a radiator 23, an expansion valve 27 and a cooler 10. A storage chamber 6 within a heat insulating casing 2 is cooled by cooling action by the cooler 10 and inside of the storage chamber 6 is heated by a heating means, so as to control the inside of the storage chamber 6 to a set temperature. The constant-temperature storage 1 further includes: a heater 11 in which a high temperature refrigerant discharged from the compressor 20 is circulated; and a solenoid valve 22 controlling the supply of the high temperature refrigerant to the heater 11. At least part of the heating means is constituted of the heater 11.
KOBAYASHI YOSUKE
WATANABE KATSUNORI
