| 摘要 |
PURPOSE: A refrigerator evaporator is provided, in which extrusion tubes and fins are made up of a plastic material, to thereby reduce weight and manufacturing cost, while obtaining an improved heat transfer effect. CONSTITUTION: A refrigerator evaporator comprises a heat exchanger where a plurality of extrusion tubes and fins are formed into an S-shape; a first header/refrigerant storage tank(35) for arranging a refrigerant inlet tube(33) and a refrigerant outlet tube(39) of the extrusion tube to a first bending portion where the extrusion tube of the heat exchanger is bent, and which separates refrigerant discharged through the refrigerant outlet tube and supplies the stored refrigerant to the refrigerant inlet tube in accordance with the ambient temperature; and a second header(32) for supporting a second bending portion where the extrusion tube of the heat exchanger is bent. The first header has a separator(38) for dividing interior of the first header, and the extrusion tube has an S-shaped or sine wave-shaped protrusion so as to allow tubes of heat exchanger to be spaced apart from each other.
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