| 摘要 |
PROBLEM TO BE SOLVED: To obtain a medium of controlled supercooling for storing low-temperature heat, and to provide a cold insulator specifically packed with the medium and shaped into a specific container so as to freeze the medium faster, and a vending machine specifically storing the insulator, the inside of which can be chilled by the insulator after the refrigerating machine is stopped to operate. SOLUTION: This medium for storing low-temperature heat is obtained by incorporating water with silver iodide, ice nucleation activating microorganism or the like as the ice nucleus activator so as to control supercooling, and, at the same time, to make the medium highly durable, functionally little deteriorated by freezing/thawing cycles. It is packed in a container of plastic or the like having a portion 2, 50 to 80% thinner than the others, to make the 2nd objective cold insulator 1 freezing more easily. The still other objective vending machine is obtained by storing the cold insulator 1, wherein the medium for storing low-temperature heat freezes during the daytime while the machine is in operation, and thaws in the nighttime to be able to keep the machine inside chilled by the latent heat of fusion till the next morning. |
