| 摘要 |
The aim of the invention is to improve the performance of heat exchangers such that lost heat is discharged from a cabinet or device, whereby the rise of the inner temperature for each discharged watt of power loss is only slight. The invention also relates to a flat refrigerating set. The temperature of the heated air (SL,) can be reduced in the counterflow (L 4 ;L 3 ;k 1 ;k 2 . . . ) by means of counterflowing cooling air (KL) without the cooling air physically entering into contact with the heated air flow (L 1 ,L 3 ,L 5 ) that is to be cooled. The air flow to be cooled (SL) can be supplied to several parallel first chambers (k 1 ,k 3 ,k 7 ) via an inlet area ( 13 ). The parallel first and parallel second chambers alternate in the direction of the height or density (h) of the refrigerating unit. The alternating chambers (k 1 ,k 2 ,k 3 ,k 4 , . . . ) also extend into a section of the flat cooling unit (l 13 ), which is located between the inlet area ( 13 ) and a closer end ( 40,41 ) of the refrigerating unit.
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