| 摘要 |
PURPOSE: A heat exchanger for a vehicle is provided to efficiently control the temperature of working fluid by simultaneously performing working fluid warm-up and cooling functions using the temperature of the working fluid supplied according to the driving state or starting conditions of the vehicle. CONSTITUTION: A heat exchanger for a vehicle comprises a heat sink unit(110), a branch unit(120), and a valve unit(130). In the heat sink unit, a plurality of plates(112) are stacked to form different connection flow paths(114) in turn, where supplied different working fluids pass through to implement mutual heat exchange and one of the connection flow paths is divided to circulate the working fluids separately. The branch unit connects one of intake holes(116) to one of discharge holes(118) to bypass working fluid according to the temperature of the working fluid, where the intake holes and the discharge holes are formed to draw in and discharge the working fluid in the heat sink unit. The valve unit is installed in the intake hole of the branch unit and selectively draws working fluid into the heat sink unit and the branch unit according to the temperature of the working fluid. |
