PURPOSE: To increase the evaporation efficiency of defrosted water by forming many hollow projections at specified intervals at the bottom of a defrosted water tray and fixing auxiliary condensers to the tips of these hollow projections by means of support pieces, and also to simplify the structure by providing a front cover with a water collecting vessel.

CONSTITUTION: Many hollow projections 1a having hollow parts 1b are made at specified intervals at the bottom of a defrosted water tray 1 which collects defrosted water, and auxiliary condensers 2 are fixed to the tips of these hollow projections 1a by means of support pieces 3. Moreover, a water channel 1c is made lower than other flank at one flank of the tray 1, and it functions as an overflow passage for defrosted water Moreover, this refrigerator is equipped with a front cover 4 which covers the tray 1 and the auxiliary condensers 2 and has a sound insulating function, and herein a water collecting vessel 4a which collects defrosted water overflowing from the water channel 1c is made. Then, the defrosted water 6 on the tray 1 is evaporated by the heat of the high-temperature gas within the auxiliary condenser 2 conducted through the support piece 3, and the surplus water is let overflow to the front cover 4 through the water channel 1c.