Kabushiki Kaisha Yaskawa Denki

Yuto Kubo

Shigekatsu Nagatomo

Takayuki Morihara

Takahiro Uchino

Tetsuo Yanagimoto

Ryosuke Tsumagari

Masahiro Tsuruta

Makoto Nakaya

Satoshi Sueshima

Koji Iwahashi

Yuki Kawafuchi

Yuki Tokimatsu

An inverter apparatus includes a main circuit substrate, an EMC filter substrate, a control substrate, and a panel. The main circuit substrate is configured to convert electric power and includes an output terminal through which the electric power is output from the inverter apparatus. The EMC filter substrate is provided on the main circuit substrate and configured to reduce propagation of electromagnetic noise. The EMC filter substrate includes a first input terminal through which the electric power is input to the inverter apparatus. The control substrate is provided on the EMC filter substrate so that the EMC filter substrate is sandwiched between the main circuit substrate and the control substrate. The control substrate is configured to control the main circuit substrate. The panel is provided on the control substrate so that the control substrate is sandwiched between the EMC filter substrate and the panel.

Inverter apparatus

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

An LED indicatorconnected to industrial machinery including an inverter, includes: an LED substrateinto which a display control signal according to a state relating to the industrial machinery is input; and a plurality of displays, andconfigured to display in a lighting state corresponding to a state of the industrial machinery, on the basis of the display control signal input by the LED substrate. The plurality of displays, andeach include a partially circular-arc shape, and are generally arranged in an approximately annular shape. The plurality of displays, andinclude the two displaysthat generally configure a half ring at one side of the approximately annular shape, and the one displaythat generally configures a half ring at the other side of the approximately annular shape.

State display device of industrial machinery and power conversion device

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 power converter includes a housing, a circuit element, and a cover. The housing includes a first space and a second space. In the first space, a circuit substrate is disposed. In the second space, a passage for a cooling fluid is disposed. The circuit element is disposed on the circuit substrate in the first space and protrudes into the second space. The cover covers at least a portion of the circuit element and includes a first portion and a second portion. The first portion protrudes from near the circuit substrate into the second space, and defines a first region that has a first area. The second portion protrudes from the first portion, and defines a second region that has a second area. The first area is larger than the second area as viewed from a direction in which the circuit element protrudes.

Power converter

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.

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Kitakyushu, Japan

Yuto Kubo