PROBLEM TO BE SOLVED: To provide an over-cooling freezing device and an over-cooling freezing method capable of making sufficient fast cooling speed in over-cooling freezing operation and further capable of improving quality of frozen items.SOLUTION: This invention comprises: a cooling case 13 installed in a refrigerator 12 a low temperature fluid feeding-in part for feeding-in low temperature fluid into the refrigerator 12 and an atmospheric gas feeding-out part for feeding out the atmospheric gas in the refrigerator atmospheric gas feeding-out means 17 for feeding-out the low temperature atmospheric gas in the cooling case to an atmospheric gas circulation flow passage and atmospheric gas feeding-in means 18 for feeding-in low temperature atmospheric gas in the atmospheric gas circulation flow passage into the cooling case a cooling container 19 for storing the freezing container storing the liquid-like frozen items and temperature control means for controlling a feeding-in amount of the low temperature fluid into the refrigerator. The cooling container is contacted with the freezing container to cool the liquid-like frozen items in the freezing container through thermal conduction.COPYRIGHT: (C)2016,JPO&INPIT【課題】 過冷却凍結の冷却速度を十分に早くすることができ、凍結品の品質向上を図ることができる過冷却凍結装置及び方法を提供する。【解決手段】 冷却庫12の内部に設けた冷却箱13と、冷却庫内に低温流体を導入する低温流体導入部及び冷却庫内の雰囲気ガスを導出する雰囲気ガス導出部と、冷却箱内の低温雰囲気ガスを雰囲気ガス循環流路に導出する雰囲気ガス導出手段17及び雰囲気ガス循環流路の低温雰囲気ガスを冷却箱内に導入する雰囲気ガス導入手段18と、液状被凍結物を収納した凍結容器を収容する冷却容器19と、冷却庫への低温流体の導入量を制御する温度制御手段とを備え、冷却容器と前記凍結容器とを接触させて熱伝導により凍結容器内の液状被凍結物を冷却する。【選択図】 図1
