Manufacturing method for split heat exchanger having oval tubes in zigzag pattern

摘要

A method for manufacturing a heat exchanger for a cooling cycle includes the steps of: preparing the pipes and the fins having through-holes through which the pipes are inserted, arranging the fins parallel depth-wise and in several separate groups depth-wise and then inserting the pipes through the through-holes of the fin groups, bending the outer portions of the pipes so that the fin groups separated from each other are piled in layers along the longitudinal direction of air flow and the inner portions of the pipes are arranged in at least two coplanar rows along the longitudinal direction of air flow, and wrenching the bending portion of the pipes to form each pipe row into a zigzag shape.