| 摘要 |
PROBLEM TO BE SOLVED: To simplify the installation work of a heat transfer plate and a cover.SOLUTION: Defrosting water from a cooler 26 flows down on an air duct 40 and is discharged from a water discharge passage 48 installed at a lower position of the air duct 40, and a metallic heat transfer plate 50 on which a heater 82 is installed is laid on the air duct 40. A metallic cover 70 covering the water discharge passage 48 is extended in the heat transfer plate 50. A wall 55 is erected and formed along a lower edge of the heat transfer plate 50, and a water discharge port 60 is opened at a position corresponding to the water discharge passage 48 of the air duct 40 on the wall 55. The cover 70 has a shape fitted to an upper face opening of the water discharge passage 48. Mounting plates 71 each superposed on a side edge of the water discharge port 60 of the wall 55 are formed at a base end of the cover 70. The mounting plates 71 are fixed with rivets 75. |
