Heating and cooling circuit e.g. for electric vehicle propulsion battery

摘要

A heating or cooling fluid circuit for an electric vehicle is used to keep the drive or propulsion battery at the right temperature. The fluid is circulated by a pump through a heat exchanger (11) and past the electric driving motor(8). There is a bypass (5) for this main branch(4), controlled by a valve(3). The main branch also cools the battery charger (7) and the control electronics. Upstream from the heat exchanger is a continuous flow heater (9). There is a header tank (13) connected to the circuit by a stub pipe (12) at the highest point.