HEAT EXCHANGER FOR REFRIGERATOR FOR IMPROVING EFFICIENCY FOR DISCHARGING DEFROSTING WATER

摘要

PURPOSE: A heat exchanger for a refrigerator is provided to improve efficiency for discharging defrosting water by using a continuously straight fin and to repress basically the generation of frost. CONSTITUTION: A heat exchanger for a refrigerator is composed of refrigerant tubes(10) for flowing refrigerant and a plurality of straight fins(20) with different lengths and combined with the refrigerant tubes by inner through-holes at constant gaps in parallel to each other. The gaps between the fins form different regions, respectively. A smallest region of the gap between the fins is below 75% and over 5% of the total size. The gap between the fins has an arrangement pattern(P) with a pair of longest fins, an intermediate fin arranged between the longest fins, and a shortest fin aligned between the longest fins and the intermediate fin. The proportion of the gaps between adjacent fins is 1:2:4.