| 摘要 |
The invention relates to a heat exchanger (7), in particular for an exhaust gas system (5) of an internal combustion engine (1), preferably in a motor vehicle, comprising at least one thermoelectric generator (13), which comprises a plurality of thermoelectric elements (15), which each have a hot side (16) and a cold side (17), at least one heating channel (18) for conducting a heating medium, which heating channel is arranged on the hot sides (16) of the thermoelectric elements (15) of at least one such thermoelectric generator (13), and at least one cooling channel (19) for conducting a cooling medium, which cooling channel is arranged on the cold sides (17) of the thermoelectric elements (15) of at least one such thermoelectric generator (13), wherein the at least one thermoelectric generator (13), the at least one heating channel (18), and the at least one cooling channel (19) are arranged adjacent in a stacking direction (20) and form a channel stack (21). A simplified design results with a housing (8) that encloses an interior (22) that accommodates the channel stack (21), which housing has a cooling medium inlet (9), a cooling medium outlet (10), a heating medium inlet (11), a heating medium outlet (12), and electrical connections (14) for the particular thermoelectric generator (13), wherein at least a double-walled intermediate bottom (23) is arranged in the interior (22) of the housing (8), in which intermediate bottom the thermoelectric elements (15) of such a thermoelectric generator (13) are arranged and which intermediate bottom separates such a cooling channel (19) from such a heating channel (18) adjacent to said cooling channel in regard to fluid flow. |
