Combined heat exchanger for electric vehicle

The present invention relates to a composite heat exchanger for an electric vehicle. In the integrated composite heat exchanger which allows a plurality of heat exchange media to be distributed in each area, an objective of the present invention is to achieve effects such as reducing the number of parts and processes through integration, improving refrigerant flow characteristics, and improving cooling efficiency. Additionally, another objective of the present invention is to solve a thermal stress concentration problem caused by integration by improving a shape of an area boundary portion. The composite heat exchanger of the present invention comprises: a tube; a first header tank and a second header tank; an anterior core; and a posterior core. 본 발명은 전기차용 복합 열교환기에 관한 것이다. 본 발명의 목적은 복수 개의 열교환매체가 영역별로 유통되게 하는 일체형의 복합 열교환기에 있어서, 일체화에 의한 부품개수 및 공정개수 저감, 냉매 흐름특성 향상, 냉방효율 향상 등의 효과를 얻음과 더불어, 일체화에 의해 발생되는 열응력 집중 문제를 영역경계 부분의 형상 개선을 통해 해소하는, 전기차용 복합 열교환기를 제공함에 있다.