Electric power converter

Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices

Reexamination Certificate

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Details

C361S709000, C361S719000, C363S131000, C363S144000

Reexamination Certificate

active

07952876

ABSTRACT:
The present invention provides a highly reliable electric power converter reduced in parasitic inductance.An electric power converter that includes a capacitor module which has a DC terminal, an inverter which coverts a direct current into an alternating current, and heat release fins which cool the inverter, is constructed so that: the inverter has a power module including a plurality of power semiconductor elements; the power module further has a metallic base, a dielectric substrate provided on one face of the metallic base, a power semiconductor element fixed to the dielectric substrate, and a DC terminal; the metallic base has the heat release fins on the other face; the DC terminal in the power module and the DC terminal in the capacitor module are each formed by stacking flat plate conductors via an insulator; the two positive and negative DC terminals have respective front ends bent in opposite directions; a plane including the bent sections is used as a surface for connecting the power module and the capacitor module; and the insulators overlap each other at the connection surface.

REFERENCES:
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patent: 6370041 (2002-04-01), Yasumura
patent: 6414867 (2002-07-01), Suzuki et al.
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patent: 6819007 (2004-11-01), Fukaya
patent: 7450388 (2008-11-01), Beihoff et al.
patent: 2003/0031038 (2003-02-01), Shirakawa et al.
patent: 10-303349 (1998-11-01), None
patent: 2001-268942 (2001-09-01), None
patent: 2001-332688 (2001-11-01), None
patent: 2002-44964 (2002-02-01), None
patent: 2005-259748 (2005-09-01), None
patent: 2005-347561 (2005-12-01), None
Japanese Office Action dated Nov. 4, 2008 (Two-2-pages).

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