Omron Corporation

Keisuke Yano

Yasuo Hayashida

Kenichiro Masaki

Ryuichi Hashimoto

Tomokazu Ikeda

Ryota Minowa

Shingo Mori

Yojiro Saruwatari

Tetsuya Fujiwara

Masayuki Noda

Ayaka Miyake

Shinichi Furusyo

Hajime Umeki

Katsuya Marumo

Junji Obata

Yasushi Kawashima

Ryunosuke Kamo

Takeshi Nishida

Hiroyuki Fujita

Tsukasa Yamashita

Kazuyuki Tsukimori

Takaaki Yamada

Shinya Matsuo

Hiroshi Ono

Hiroshi Hashimoto

Syuichi Itoda

Yasuyuki Masui

Shinya Tsuji

Toshiyuki Kakimoto

Koji Takami

Toshinari Mori

Ken Tamura

Keisuke Arita

Hiroshi Shiino

Masahiro Ono

Takahiro Nakamura

Taijiro Fujiwara

Hironori Sanada

Yusuke Komoguchi

Masao Nagase

Toshifumi Sumino

Takahiro Sato

Kazuchika Hiroki

Yoshikazu Tajiri

Ikuhiro Yoshihara

Takuma Okamoto

Hajime Tsubata

Ryosuke Hasui

Kiyokazu Matsunaga

Hitoshi Tanaka

Yoshihiro Azuma

Takeshi Nishiyama

Yasuhiro Yokote

Tomakazu Ikeda

In an abnormality detector apparatus, a signal processor unit performs frequency analysis on data of a current or a voltage in different first and second time intervals to retrieve a first drive frequency corresponding to a maximum peak value of a spectrum in the first time interval and a second drive frequency corresponding to a maximum peak value of a spectrum in the second time interval; adjusts a frequency axis of one spectrum such that the maximum peak values coincide with each other, and calculates an averaged spectrum relating to the adjusted and unadjusted spectra; and retrieve an abnormal peak value equal to or more than a predetermined threshold value at a frequency different from the drive frequency having the maximum peak value based on the averaged spectrum; and determine an abnormal state of the motor depending on presence or absence of the abnormal peak value.

Abnormality detector apparatus and method for detecting abnormal state of rotary machine such as motor

Relay socket

A control panel includes power supply circuits for supplying power supply voltages to loads and a connection part for connecting wiring. The control panel comprises a system current detection unit that is for detecting a sudden increase in system current that is from a power system and flows through the control panel and includes a second current transformer, and individual current detection units that are for detecting a sudden increase in the individual current of one of the power supply circuits and include first current transformers. An arc discharge detection unit identifies an arc discharge occurring within the control panel separately from a surge flowing into the system based on a system current detection signal and individual current detection signals.

Arc discharge detection device

According to one or more embodiments, when a predetermined time has passed after generation of an arc at least either between a movable contact and a fixed contact or between a movable contact and a fixed contact, an arc generated between the movable contact and the fixed contact is extended by a magnetic field generation unit to be longer than an arc generated between the movable contact and the fixed contact.

Electromagnetic relay

A wireless switch comprising: a movable section provided to be freely displaceable; an operation unit elastically held by the movable section and, when in a non-neutral state, vibrating as a result of an action of elastic force that causes return to a neutral state and displacing the movable section in a direction corresponding to a direction of the vibration; a power generation unit generating a voltage of a polarity corresponding to a direction of displacement when the movable section has been displaced; a wireless transmission unit wirelessly transmitting a signal on the basis of power generated by the power generation unit; and a voltage supply control circuit, when the operation unit in the neutral state has been operated such that the operation unit is brought into a non-neutral state, supplying a voltage to the wireless transmission unit using power generated by the power generation unit at a time of an initial state change of the operation unit and then disabling voltage supply to the wireless transmission unit by the power generated by the power generation unit accompanying the vibration of the operation unit caused by the action of the elasticity afterward.

Wireless switch

The disclosure provides a socket that can easily secure internal insulation. The socket includes a box-shaped first housing and a second housing attached to the first housing. The first housing includes a first wall and a second wall. The first wall extends in a width direction that intersects an opening surface, and has a first opening for inserting a screw member that fixes a conductor part of a wire. The second wall extends in a direction that intersects the opening surface and the first wall, and has a second opening for inserting and removing the conductor part of the wire. The second housing includes a second housing body and a locking arm. The second housing body covers the opening surface. The locking arm extends from the second housing body in the width direction and is locked to the first housing in the width direction.

Socket with enhanced internal insulation

A connector that can connect electronic parts in different shapes and sizes. The connector includes a body part, a first connection part, and a second connection part. The body part is attached to a socket. The first connection part and the second connection part are arranged side by side along a first direction and connected to the body part respectively. The first connection part has a first contact part and a second contact part that are disposed opposite to each other with a gap in a second direction. The second connection part has a third contact part and a fourth contact part that are disposed opposite to each other with a gap in the second direction. A shortest distance between the first contact part and the second contact part is set greater than a shortest distance between the third contact part and the fourth contact part.

Connector and socket

The disclosure provides a socket that can be held at any position on rails having different width dimensions. The socket includes a housing, which can be held on a rail that has a first side part and a second side part and extends in a first direction. The housing includes a first locking part disposed on one side of the rail in a second direction to be capable of locking the first side part in a third direction; a second locking part disposed on the other side of the rail in the second direction to be capable of locking the second side part in the third direction; and a third locking part disposed between the first locking part and the second locking part in the second direction to face the first locking part to be capable of locking the first side part of the rail in the third direction.

Socket with locking parts to secure to a rail

A DIN rail installing portion structure of an electrical appliance and a socket are provided. A back cover of a socket includes: a fitting groove, which is fitted to a DIN rail; and a claw portion, which is formed on a first side surface portion of both side surface portions of the fitting groove. A first edge portion of the DIN rail is clamped by the claw portion to hold the socketon the DIN rail. The claw portion elastically presses a first edge portion of the DIN rail in a thickness direction. On the first edge portion side of the DIN rail, there is no claw of which a width of clamping the first edge portion in the thickness direction does not change.

DIN rail installing portion structure of electrical appliance and socket

A wireless switch includes a cover member, a button member, a first plunger, a second plunger, a trigger spring, a return spring, a shaft, a housing, and a power generation module. An intermediate member constituted of the first plunger, the second plunger, the trigger spring, the return spring, and the shaft is connected between the button member and the power generation module. The intermediate member prevents a position of the shaft making contact with the power generating shaft of the power generation module from changing, and causes stress to build up in the trigger spring, until a movement distance of the button member reaches a predetermined distance. The intermediate member releases the stress built up in the trigger spring and pushes the power generation shaft with the shaft using the released stress upon the movement distance of the button member reaching the predetermined distance.

Power generation apparatus and wireless switch

An electromagnetic relay includes a base, an electromagnetic block disposed on an upper surface of the base, a movable iron piece that rotates based on excitation/non-excitation of the electromagnetic block, a movable contact piece that rotates integrally with the movable iron piece, a movable contact fixed to a free end of the movable contact piece, a fixed contact disposed so as to come into or out of contact with the movable contact in association with rotation of the movable contact piece, and a magnetic field generation unit disposed so as to attract an arc generated between the movable contact and the fixed contact in a direction that, as seen from the fixed contact, is opposite to the movable contact and the base.

Growing community of inventors

Kikuchi, Japan

Keisuke Yano