POWER INVERTER
First Claim
1. A power converter to be connected to a rotary motor mounted on a vehicle, comprising a metallic housing, a power module arranged in the housing, a capacitor module arranged in the housing, and a cooling path forming body forming a cooling path, whereinan opening is formed on the cooling path,the power module includes a metallic base plate, a heat radiating d fin fixed by brazing to a surface of the base plate, and a plurality of semiconductor chips held on another surface of the base plate,the heat radiating fin of the power module projects from the opening into the cooling path, and the power module is fixed to the cooling path forming body so that the opening is closed by the base plate of the power module.
2 Assignments
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Accused Products
Abstract
Water paths for feeding a coolant water through a power converter mounted on an automobile are arranged in parallel, openings are formed on the water paths respectively, heat radiating fins project from the openings, and the openings are closed by a base plate of the power module. Further, the base plate of the power module includes a metal in addition to copper to increase a hardness of the base plate, so that a deterioration of the flatness during fixing the fins with brazing is restrained.
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Citations
1 Claim
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1. A power converter to be connected to a rotary motor mounted on a vehicle, comprising a metallic housing, a power module arranged in the housing, a capacitor module arranged in the housing, and a cooling path forming body forming a cooling path, wherein
an opening is formed on the cooling path, the power module includes a metallic base plate, a heat radiating d fin fixed by brazing to a surface of the base plate, and a plurality of semiconductor chips held on another surface of the base plate, the heat radiating fin of the power module projects from the opening into the cooling path, and the power module is fixed to the cooling path forming body so that the opening is closed by the base plate of the power module.
Specification