| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To carry out operation with significantly superior energy saving performance in a freezing unit carrying out cooling of an interior by a cooling heat exchanger. <P>SOLUTION: The freezing unit includes: a first control unit (53) that adjusts the cooling performance of an evaporator (14) so that the internal temperature is at a target temperature; a second control unit (54) that increases the cooling performance of the evaporator (14) to lower the internal temperature to a second lower temperature limit, and then stops a compressor (11) and also opens an automatic ventilation opening (7) to introduce outside air into the unit once the temperature is maintained at the target temperature; and a third control unit (55) that causes control operation by the first control unit (53) to resume when the internal temperature subsequently reaches an upper temperature limit. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
