| 摘要 |
PROBLEM TO BE SOLVED: To prevent a crack and a clogging of a return duct. SOLUTION: A heat insulation partition wall 10 partitions a cold storage chamber and a deep freezing chamber to upper and lower stages. And, a cold air in the storage chamber is returned to an evaporator via a return duct 30 of the wall 10. The duct 30 is formed by assembling a cover plate 29 with a vertical wall 10b, which is, in turn, integrally formed with the wall 10. Accordingly, the wall 10b is prevented from being cracked from its room at the time of releasing differently from the case of integrally molding the large-sized return duct 30 with the wall 10. Further, since a heater 31 is disposed in the duct 30, the duct 30 is prevented from being clogged due to icing by an influence of the evaporator disposed near the duct 30. |
