| 摘要 |
The invention relates to a heat exchanger, especially a charge-air cooler for motor vehicles, comprising flat tubes ( 9 ) with tube ends ( 9 a), and collecting tanks ( 1 ) which are connected to tube plates ( 4 ), said tube plates ( 4 ) comprising openings ( 8 ) provided with long sides ( 8 a) and short sides ( 8 b) for receiving the tube ends ( 9 a), in addition to edge strips ( 5, 6 ) and transition regions ( 12, 13 ) which are embodied in a groove-type manner and located between the short sides ( 8 b) and the edge strips ( 5, 6 ), the tube ends ( 9 a) being soldered in the openings ( 8 ). According to the invention, the transition regions ( 12, 13 ) comprise a reinforcing element. |
