Kabushiki Kaisha Yaskawa Denki

Takayuki Morihara

Shigekatsu Nagatomo

Kenji Isomoto

Yuto Kubo

Takahiro Uchino

Koji Nuki

Masahiro Tsuruta

Masato Higuchi

Koji Higashikawa

Yasuhiko Kawanami

Tasuku Isobe

Akira Sasaki

Masafumi Sakai

Tetsuya Ito

Katsushi Terazono

Kiyonori Koguma

Takashi Aoki

Yukihisa Nakabayashi

A matrix converter includes a plurality of first bidirectional switches electrically connected to each of input phases of an AC power supply and each of output phases of a load, respectively, and a plurality of second bidirectional switches electrically connected to each of the input phases and each of the output phases, respectively. The first bidirectional switch and the second bidirectional switch are electrically connected in parallel to one of the input phases and one of the output phases.

Matrix converter

A capacitor cover configured to store a plurality of capacitors of a power conversion device is provided. The capacitor cover includes a first cover including a plurality of types of first contact surfaces configured to be in contact with one side of each surface of the capacitors of plurality of types with different sizes.

Capacitor cover and power conversion device

A capacitor module applicable in a matrix convertor includes a module cover and a plurality of terminals. The module cover houses a plurality of AC capacitors. The plurality of terminals are disposed at least on a first side and a second side of the module cover in a widthwise direction of the module cover, and protrude from a bottom surface of the module cover.

Capacitor module and matrix convertor

A wiring board includes a conductor plate including a wiring portion and an electrode portion connected to a power conversion semiconductor element, a liquid-cooling pipe mounted near the conductor plate and causing a cooling liquid to be supplied therethrough, and an insulating resin material arranged at least between the conductor plate and the liquid-cooling pipe.

Wiring board and power conversion device

Inverter controller

Growing community of inventors

Kitakyushu, Japan

Takayuki Morihara