Patent Number: 6,166,937

Title: Inverter device with cooling arrangement therefor

Abstract: IGBT modules, bus bars and capacitors in an inverter main circuit are secured on the front face of a heat sink and at the back side of the heat sink a water cooling channel is formed to cool the IGBT modules. The bus bars and the capacitor, thereby the size of an inverter device used in an electric car is reduced and the duration thereof is prolonged.

Inventors: Yamamura; Hirohisa (Hitachioota, JP), Suzuki; Osamu (Chiyoda-machi, JP), Yasukawa; Akio (Kashiwa, JP), Matsudaira; Nobunori (Hitachi, JP)

Assignee: Hitachi Ltd.

International Classification: H01L 23/34 (20060101); H01L 23/473 (20060101); H01L 25/16 (20060101); H05K 7/14 (20060101); H05K 7/20 (20060101); H02M 001/00 (); H05K 007/20 ()

Expiration Date: 12/26/2013