Heat exchanger

摘要

A heat exchanger (1) comprises a housing (3), a guide member (42, 52), a return member (44, 54) and a discharge member (43, 53). The housing (3) includes a plurality of parallel flow passages (46a, 46b, 56a, 56b). The housing includes a first end face (41c, 51c) and a second end face (41d, 51d) each having openings (41f, 41g, 51f, 51g). The guide member (42, 52) is fixed to either the first face (41 c, 51 c) or the second end face (41 d, 51 d). The return member (44, 54) is fixed to the first end face (41 c, 51c) or the second end face (41d, 51d) in a manner to extend over a pair of the openings (41f, 41g, 51f, 51g), for connecting the pair of openings (41f, 41g, 51f, 51g) in a returned manner. The discharge member (43, 53) is fixed to either the first face (41 c, 51 c) or the second end face (41 d, 51 d). The plurality of flow passages (46a, 46b, 56a, 56b) are connected by the return member (44, 54) into a single flow passage. The guide member (42, 52) is provided in the opening (41f, 41g, 51f, 51g) on a most upstream side of the single flow passage. The discharge member (43, 53) is provided in the opening (41f, 41 g, 51f, 51g) on a most downstream side of the single flow passage. At least one of the guide member (42, 52), the return member (44, 54) and the discharge member (43, 53) integrally includes an attachment portion (42a, 43a, 44a, 52a, 53a, 54a) attached to the housing (3); and a protruding portion (42c, 43c, 44c, 52c, 53c, 54c) protruding more than the attachment portion (42a, 43a, 44a, 52a, 53a, 54a) toward the housing (3) and including an inclined surface (42e, 43e, 44e, 52e, 53e, 54e).