| 摘要 |
PURPOSE:To keep the interior of a chamber, partitioned into a plurality of sections, at a plurality of temperatures by a method wherein a first partition plate and a second partition plate to partition a space part are arranged to an inner box body and further, a flow straightening plate by which the air suction side of a vaporizer is partitioned into a plurality of sections is provided. CONSTITUTION:A cycle wherein, when a compressor 4 in an upper machine room 7 of a body 1 is operated, cold air fed from a vaporizer fan 12 and flowing through a vaporizer 10 flows to a first space part 18 between an interior box body 13 and an inner box 8B and flows in the direction of doors 2A and 2B and returns to the vaporizer fan 12, is provided. In this case, a first flow straightening plate 25 to partition the vaporizer 10 is arranged to a machine room heat insulating wall 9 and a second partition plate 26 by which the space part 18 is divided into space parts 18A and 18B is provided. The vaporizer fan 12 comprises vaporizer fans 12A and 12B juxtaposed with the vaporizer 10. Two cold air circulation cycles wherein cold air flowing through the vaporizer 10 flows through the space parts 18A and 18B to the vaporizer fans 12A and 12B are formed. |
