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POWER ELECTRONICS DEVICE AND ITS COOLING ARRANGEMENT

  • US 20140168897A1
  • Filed: 12/11/2013
  • Published: 06/19/2014
  • Est. Priority Date: 12/13/2012
  • Status: Active Grant
First Claim
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1. Liquid-cooled power unit of a power electronics device, which power unit comprises at least two power modules,the cooling surface of which power modules is provided with pin-type protrusions, andwhich power modules are fixed to the frame part of the power unit,whereina liquid duct is arranged inside the frame part of the power unit, andthe power modules are fixed to the points of the apertures situated in the frame part on both sides of the liquid duct in such a way that the pin-type protrusions of the power modules are situated in the liquid duct, andat least one wedge-shaped part is fitted into the liquid duct, which wedge-shaped part comprises a wedge-shaped front part for spreading the liquid flow into two essentially equal flows at the point of the power modules.

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