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Vehicle drive module having improved cooling configuration

  • US 7,177,153 B2
  • Filed: 12/09/2002
  • Issued: 02/13/2007
  • Est. Priority Date: 01/16/2002
  • Status: Expired due to Fees
First Claim
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1. An electric drive for a vehicle at least partially propelled by an electric motor, the drive comprising:

  • a vehicle drive train;

    a power converter operatively coupled to the drive train and comprising;

    a thermal support configured to receive and to circulate a coolant stream;

    a control circuit;

    a driver circuit supported by the thermal support and coupled to the control circuit to receive control signals from the control circuit;

    a power converter circuit coupled to the driver circuit to receive drive signals for outputting a controlled frequency output power, the converter circuit including a plurality of power electronic device subassemblies bonded to at least one substrate for converting input power to AC power signals based upon the drive signals; and

    a capacitor circuit coupled to the power converter circuit;

    wherein at least the substrate of the converter circuit is supported on the thermal support for extracting heat from the power electronic device subassemblies during operation of the power converter circuit.

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