| 摘要 |
A built-up heat exchanger including a seat and a plurality of radiators superposed on a top of the seat is provided. The seat is made of a thermal conductive material in sheet form and has at least two notches formed on a top surface thereof. The a plurality of radiators are made of a thermal conductive material in sheet form and are punched to form a plurality of upward extended fins and at least two downward projected ridges corresponding to the at least two notches on the seat, such that any of the radiators may be superposed on the top surface of the seat with the at least two downward projected ridges fitly received in the at least two notches. Since the number of fins formed on each radiator and the number of radiators superposed on the seat may be freely decided depending on actual need, the built-up heat exchanger may be used in different applications.
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