Patent ID: 7222501

Claim:
In an evaporator including upper and lower header units which each have a two-row refrigerant flow path, a plurality of tubes which connect the upper and lower header units and are formed of an aluminum material and are arranged in two rows in front and rear sides with respect to the flowing direction of air and are stack-arranged in parallel in the direction orthogonal to the flowing direction of air for flowing a refrigerant therethrough, and a wrinkle fin which is provided between the neighboring tubes for enhancing a heat transfer area of air passing through the tubes and is formed of an aluminum material, a header unit of an evaporator, comprising: a tank member which has a U-shaped cross section and has a vertical groove in an inner center portion in a longitudinal direction, and has a groove formed in an inner surface of both side ends in a longitudinal direction; a partition member which divides an inner space of the tank member in a width-wise direction by inserting a lower side end into the vertical groove of the tank member; a header plate which is engaged between the grooves of both sides of the tank member and covers an opened portion of the tank member for sealing and has a plurality of tube holes for inserting the tubes; an intermediate baffle which is formed based on the shape of the inner portion of the tank member and partitions the inner space of the tank member; and a finishing baffle which is formed based on the shape of the inner portion of the tank member and covers the inner space for sealing when the same is assembled to both side ends of the tank member.