| 摘要 |
PROBLEM TO BE SOLVED: To provide a dew attachment prevention device having structure capable of separating a heat pipe device from a freezer and suitable for heating a large front face opening part, to prevent dew attachment on a front face opening peripheral edge part of a cooling storage body by adopting the heat pipe device since the freezer is placed on the upper face part of the cooling storage body to be drawn out considering maintenance etc. of the refrigerator, in the commercial cooling storage. SOLUTION: The dew attachment prevention device is provided with first and second heat release parts connected to a common heat absorption part by first and second heat pipes, respectively. The heat absorption part performs heat exchange with a high temperature portion from a compressor of the freezer to a decompression device. By switching of current-carrying between a first electric heater for heating the first heat release part and a second electric heater for heating the second heat release part, supply of working fluid from the first and second heat release parts to the heat absorption part is switched, and dew attachment on a frontage part of the cooling storage is prevented by condensation action by the first and second heat pipes when the evaporation working fluid in the heat absorption part is returned to the first and second heat release parts. COPYRIGHT: (C)2009,JPO&INPIT
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