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ELECTRONIC CONTROL UNIT AND ROTATING ELECTRIC MACHINE

  • US 20140225482A1
  • Filed: 02/07/2014
  • Published: 08/14/2014
  • Est. Priority Date: 02/12/2013
  • Status: Active Grant
First Claim
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1. An electronic control unit comprising:

  • a substrate;

    a first circuit pattern and a second circuit pattern disposed on the substrate;

    a semiconductor chip electrically connected to the first circuit pattern and the second circuit pattern;

    a resin body wrapped around a portion of the semiconductor chip and having a board shape with a first face facing the substrate and a second face facing away from the substrate;

    a first metal plate having a side connected to the semiconductor chip and having an other side connected to the first circuit pattern;

    a radiator having a base portion and a first shaped portion, the base portion having a board shape with a predetermined thickness, the base portion disposed on an opposite side of the resin body relative to the substrate, the first shaped portion projecting from the base portion toward the first circuit pattern and forming a first gap that is defined between the first shaped portion and the first circuit pattern; and

    a first heat conductor disposed in the first gap and transmitting heat from the first circuit pattern to the radiator.

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