Patent ID: 7210304
Filing Date: 2007-05-01
Classification: B60K,F28D,H02K,H05K

Abstract:
1. A cooling arrangement for cooling an inverter circuit having components packaged proximate an electric traction motor for driving at least one traction wheel of an automotive vehicle, the arrangement comprising: a housing disposed proximate the electric traction motor, the housing having a compartment with a space containing the components of the inverter circuit; a fresh coolant fluid inlet opening and a used coolant fluid outlet opening communicating with the space containing the components of the inverter circuit; a dielectric coolant fluid; a fluid dispenser for dispensing the dielectric coolant fluid into the space and onto the components of the inverter circuit; a reservoir for receiving the dielectric coolant fluid after the dielectric coolant fluid has absorbed heat from the components of the inverter circuit, the reservoir having a second cooling fluid flowing therethrough from the radiator of the automotive vehicle for transferring heat out of the dielectric cooling fluid, and a pump for cycling the dielectric coolant fluid while primarily in the liquid phase out of the reservoir and into the space for cyclically cooling the components of the inverter circuit.