Mitsubishi Electric Corporation

Kosuke Inoue

Hirofumi Inoue

Naoya Yabuuchi

Yuji Sugaya

Provided is a step-down converter including: a step-down transformer including a primary-side coil and a secondary-side coil; a resin molded body integrally molded through use of a non-conductive resin together with the primary-side coil and the secondary-side coil; and a rectifier element, wherein the resin molded body has a mounting surface on which the rectifier element is to be mounted, wherein the secondary-side coil includes a first plate-shaped terminal, wherein the first plate-shaped terminal is exposed from the resin molded body in the mounting surface, wherein, on the mounting surface, a second plate-shaped terminal is provided in parallel to the first plate-shaped terminal across a gap, wherein the rectifier element is bonded to both of the first plate-shaped terminal and the second plate-shaped terminal by soldering, and wherein the non-conductive resin has a melting point higher than a melting point of the solder.

Step-down converter including a step-down transformer and a resin molded body

Provided is an in-vehicle power conversion device in which a smoothing capacitor includes a first electrical connection portion, a second electrical connection portion, a mechanical connection portion, and a smoothing capacitor main body. The first electrical connection portion is electrically connected to a first conductor. The second electrical connection portion is electrically connected to a second conductor. The mechanical connection portion functions as an additional electrical connection portion configured to fix the smoothing capacitor main body to the first conductor or the second conductor to be electrically connected to a fixing destination of the smoothing capacitor main body.

In-vehicle power conversion device

Obtain an electric power converter by which a downsizing and a low cost can be realized in such a way that main components are standardized. A transformer and rectifier elements of a rectifier circuit are configured by using a single module, and a center tap is configured by laminating one pullout portion of a first secondary winding and one pullout portion of a second secondary winding, and a central connecting component is connected to a center tap and a terminal of a smoothing coil which composes a smoothing reactor.

Growing community of inventors

Tokyo, Japan

Kosuke Inoue