| 摘要 |
<p>The deep freezing refrigerator has an electrically driven refrigerator unit, and has a refrigerating storage arrangement making use of latent heat. This storage utilises the cheaper electric power supplied during the night. This arrangement is connected to an electrical switch which connects the refrigerator or in relation to the current tariff or depending on the time of the day. The refrigerator is disconnected at the temperature below the freezing point of the material used in the storage arrangement.</p> |
