Patent ID: 8037929

Claim:
An evaporator comprising: a plurality of refrigerant flow members arranged in parallel at predetermined intervals in a left-right direction, and a plurality of corrugate fins disposed in air-passing clearances between the refrigerant flow members, wherein each of refrigerant flow members includes a plurality of refrigerant flow tube portions arranged in a front-rear direction, each of the corrugate fins is disposed to extend across the refrigerant flow tube portions, a drain portion which is vertically extending is formed between the refrigerant flow tube portions adjacent each other in the front-rear direction, each of the corrugate fins includes wave crest portions, wave trough portions, and connection portions connecting the wave crest portions and the wave trough portions, each of the corrugate fins has a plurality of first louvers and a plurality of second louvers arranged in the front-rear direction at each of the connection portions, the plurality of first louvers is inclining downward toward a front of the refrigerant flow tube portions in the front-rear direction and is provided to correspond to a front portion of each of the refrigerant flow tube portions, the plurality of second louvers is inclining upward toward the front of the refrigerant flow tube portions in the front-rear direction and is formed to correspond to a rear portion of each of the refrigerant flow tube portions, at least a front-end louver of the plurality of first louvers is provided to correspond to the front portion of each of the refrigerant flow tube portions except for a refrigerant flow tube portion at a front end is located in the drain portion, and clearances between the plurality of second louvers in the front-rear direction is provided to correspond to the rear portion of each of the refrigerant flow tube portions except for a refrigerant flow tube portion at a rear end are not facing the drain portion.