| 摘要 |
PROBLEM TO BE SOLVED: To provide a stacked heat exchanger in which the strength of a tank part is increased without increasing the total weight. SOLUTION: In a heat exchanger in which a tube element 1 provided with a bulged tank part 4 is formed at least on one end of a flattened tubular part 3 by joining a circumferential end part of a pair of drawn core plates 11, and a plurality of tube elements 1 and outer fins 2 are alternately stacked, one layer or a plurality of layers of reinforcement plates 7 are joined in a stacked state with at least either of outer surface or inner surface of the tank part 4 of the tube element 1. The reinforcement plate is preferably formed by folding back the end part of the core plate, and a stopper to lock the end part of an outer fin is preferably formed by providing the end part of the riser shape on the flattened tubular part side of the reinforcement plate. |
