Patent ID: 8107241
Filing Date: 2012-01-31
Classification: F28D,H01L,H05K

Abstract:
1. An electric power conversion apparatus for an electric car comprising: semiconductor devices each performing a switching operation for electric power conversion; a bubble-pump type cooling unit including a device cooler in contact with the semiconductor devices, having a plurality of heat receiving tubes wherein coolant vertically flows therein, said plurality of heat receiving tubes being arranged in a row whose direction is parallel to a side face of the electric car, a radiator into which the coolant heated in the device cooler flows for radiating the heat from the coolant, and a heat exchanger for exchanging heat between a coolant entering the device cooler after exiting from the radiator and a coolant entering the radiator after exiting from the device cooler; and a cooling fan configured to generate wind for blowing through the radiator.