| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger which is formed by providing chambers in a head tank and enables reduction of a force required for swaging of a core plate without sacrificing the assembly easiness.SOLUTION: A heat exchanger is provided with: a first seal portion 51 sandwiched by side walls 212a, 212b, 212c, and a core plate 30 which define a first tank inner space; a second seal portion 52 sandwiched by side walls 222a, 222b, 222c and the core plate 30 which define a second internal space; and a connection portion 53 connecting the first seal portion 51 with the second seal portion 52. A compression rate of the connection portion 53 is lower than a compression rate of the first seal portion 51 and a compression rate of the second seal portion 52.SELECTED DRAWING: Figure 3 |
