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Electronics component packaging for power converter

  • US 20100165575A1
  • Filed: 04/01/2009
  • Published: 07/01/2010
  • Est. Priority Date: 12/31/2008
  • Status: Active Grant
First Claim
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1. A method of assembling a power converter for a multiple-phase electric drive propulsion system in a machine comprising:

  • arranging a plurality of rectangular capacitor units of a capacitor subassembly for conditioning electrical power in the power converter in a first packaging arrangement, including orienting major capacitor axes of each one of the capacitor units co-linear with one another and orienting minor capacitor axes of each one of the capacitor units parallel but not co-linear with one another;

    arranging a plurality of IGBT modules of a transistor subassembly for power switching in the power converter in a second packaging arrangement, including orienting major module axes of each one of the IGBT modules parallel but not co-linear with one another and orienting minor module axes of each one of the IGBT modules co-linear with one another;

    wherein arranging the plurality of IGBT modules further includes positioning a rectangular heat dissipation surface of each one of the IGBT modules in a common heat transference plane; and

    supporting the capacitor subassembly in the first packaging arrangement and supporting the transistor subassembly in the second packaging arrangement.

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