Patent ID: 9651315
Date: 2017-05-16
CPC Classifications: F28D,F28F

Claim:
1. A fin of a heat exchanger, wherein the fin comprises a plurality of first fin units and a plurality of second fin units which are arranged in parallel and alternately, and each first fin unit comprises a first louver facing an inflow direction of fluid, and each second fin unit comprises a second louver facing the inflow direction of the fluid, the first louver and the second louver are arranged in parallel, and the first louver and the second louver are staggered in the inflow direction of the fluid to form a first space between the first louver and the second louver, and at least one of first louvers or at least one of second louvers has a varied width; and wherein the each first fin unit further comprises a first bottom portion extending horizontally from a bottom of the first louver, the each second fin unit further comprises a second top portion extending horizontally from a top of the second louver, and a length of the first bottom portion is different from a length of the second bottom portion in the inflow direction of the fluid.