Manufacturing method for heat exchanger device for same and air conditioner and/or external unit thereof equipped with heat exchanger manufactured using said method

摘要

The present invention addresses the issue of efficiently manufacturing heat exchangers without requiring a mechanism for adjusting the stop position of a flare plate (B) or adjustment work whereby flares (7j) of the same shape and a constantly fixed depth are formed at the tube openings of various types of heat exchanger even when the position of tube openings (7b) of tubes (7) of heat exchangers (5) varies according to the type of heat exchanger. The heat exchanger manufacturing method is characterized by manufacturing a heat exchanger by using a connecting and tensile force generating means (Xb) that connects a flare base (B) the tip of which is equipped with a flare punch (10) for flaring to a gripping body base (3h) and generates a tensile force in a directions so that both are drawn towards each other across a fixed distance in order to draw the flare base (B) towards the gripping body base (3h) which is held and fixed to a reference platform (A) by means of a locking means (Ab) thereby pressing the flare punch (10) into the expansion part (7d) on the tube opening side and implementing prescribed flaring after which the flare base (B) the gripping body base (3h) and a sliding base (3d) are withdrawn from the heat exchanger.