| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger superior in heat exchanging efficiency capable of improving heat exchanging efficiency and making uniform the temperature of air that is a refrigerant. SOLUTION: The heat exchanger for exchanging heat between a first cooling material and a second cooling material includes a first branch path group including a plurality of pairs of first branch paths 13, 14 for the first cooling material, and a second branch path group including a plurality of pairs of second branch paths for the second cooling material. The first branch paths 13, 14 and the second branch paths are alternately disposed in a first direction so that one branch path of one group can perform heat conduction between the plurality of other branch paths. The pair of first branch paths 13, 14 are disposed in a second direction orthogonal to the first direction. The pair of first branch paths 13, 14 are formed of a tube having a wall body with a thickness of 0.3 mm or less, and preferably, a thickness of 0.24-0.28 mm. COPYRIGHT: (C)2010,JPO&INPIT
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