To reduce the height of an evaporator unit by reducing the height difference of a drain pan, in the evaporator unit of a refrigerating device formed such that an evaporator and an evaporator fan are disposed in an air flow passage in a casing provided on one end side with an air suction port and on the other side with an air outlet, and a drain pan is arranged at the lower part of the evaporator.

The evaporator unit of a refrigerating device is formed such that the bottom of a drain pan 3 comprises a first slope 3a inclining downward front the air outlet 4 side toward the air suction port 9 side; and a second slope 3b inclining downward from the air suction port 9 side toward the air outlet 4 side. The first and second slopes 3a and 3b cross each other between the air suction port 9 and the air outlet 4 to form a lowermost part 10 of a bottom, and a drain outlet 5 communicates with the lowermost part 10.