Panasonic Intellectual Property Management Co., Ltd.

Panasonic Automotive Systems Co., Ltd.

Atsushi Yamashima

Shinya Kimura

Yuuji Yamaguchi

A power conversion apparatus includes a case having a heat-dissipation property, and including a housing part formed to surround a predetermined space, a resin material having a thermal conductivity, the resin material being provided in the predetermined space, a coil disposed in the predetermined space, a coil case having a shape that fits with the housing part, the coil case being configured to house the coil, and a power semiconductor device disposed along a side wall of the coil case. The power semiconductor device is pressed and fixed between a side wall of the housing part and the side wall of the coil case in a state where a heat dissipation surface is in contact with the side wall of the housing part.

Power conversion apparatus, and method of manufacturing power conversion apparatus

This power supply device is provided with: a first heat-generating component; a case; a resin material; a circuit board; a second heat-generating component; and a heat dissipation casing. This power supply device is additionally provided with a heat transfer member which has a first portion that is arranged to be in contact with a first outer surface of the case and a second portion that is arranged to be in contact with a second outer surface of the case, and which has a higher thermal conductivity than the case. The second heat-generating component is arranged in contact with the heat transfer member; and the heat transfer member dissipates the heat of the first heat-generating component and the second heat-generating component by being arranged in contact with a wall surface that constitutes the heat dissipation casing.

Power supply device with a heat generating component

Provided is a reactor device which is inexpensive, has high heat radiation and with which there is a high degree of freedom when positioning the transformer core. A heat-radiating plate () of U-shaped cross section is contacted onto an upper face and both side faces of an upper part E core () forming a transformer () upper part, and a transformer () provided with the heat-radiating plate () is housed from one face which is open of a reactor case (), and a potting resin material is charged into the gap between the transformer () and the reactor case () until a lower edge part of the heat-radiating plate () is submerged. The reactor case () housing the transformer () is installed and secured onto a base providing a cooling mechanism.

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Kanagawa, Japan

Atsushi Yamashima