| 摘要 |
PROBLEM TO BE SOLVED: To satisfy two kinds of temperature specifications of very low temperature and low temperature by one ultradeep freezer, to reduce an installation space of the freezer, and to reduce the cost. SOLUTION: This ultradeep freezer where a heat insulating casing 1 and a heat insulating door 3 made out of a heat insulating material, and articles accommodated inside of the heat insulating casing 1 are cooled by a dual freezer where the low-temperature side and high-temperature side cycles are cascade-connected, comprises a plurality of storages 5a, 5b formed by partitioning the heat insulating casing 1 by a heat insulating wall 2, and independently mounting the heat insulating doors 3, and cooling units 7a, 7b respectively mounted in the storages. One of the cooling unit is connected with the low-temperature side cycle, and the other is connected with the high-temperature side cycle. COPYRIGHT: (C)2005,JPO&NCIPI
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