Smc Kabushiki Kaisha

Smc Corporation

Takeshi Hirose

Shigekazu Nagai

Yoshihiro Fukano

Akio Saitoh

Toru Sugiyama

Masaki Miyahara

Shoichi Makado

Ryuichi Masui

Yuta Oshima

Atsushi Fujiwara

Eiji Iijima

Yoko Ikegami

Satoshi Kuroda

Ryoichi Suzuki

Controller for electric actuator

A controller assembly includes a plurality of controller units, and a heat dissipating unit interposed between the controller units. Male and female connectors are disposed in the controller units, and the connectors thereof are fitted to female and male connectors of the heat dissipating unit to thereby establish electrical contact therebetween. Upon driving electric actuators, heat generated in circuit boards of the controller units is dissipated to the exterior through a plurality of heat dissipating protrusions provided on the heat dissipating unit, so that heat generating sources of the circuit boards are cooled.

Controller assembly

Controller of electrical actuator

An actuator control system comprises an electric actuator, a driver, and a controller. The electric actuator is provided with a buffering mechanism which absorbs impact applied to a piston rod. The buffering mechanism includes piston dampers which absorb impact applied to a piston, a first end damper which is provided at an end of a housing facing the piston, and a second end damper which is provided on a rod cover separated from the housing by a predetermined distance.

Actuator control system

A driver comprises a direction-switching means which switches a rotation direction of a rotary driving source based on a direction instruction signal, a current amplifier/limiter which converts a voltage outputted from the direction-switching means into a corresponding current and which limits the current to a preset reference current I(threshold value), a current sensor which detects the current supplied to the rotary driving source, and a current loop which feeds back a detection signal supplied from the current sensor to an upstream side of the current amplifier/limiter.

Control system for electric actuator

Motor controller

A driver for an electric actuator comprises a direction-switching means which switches a direction of rotation of a rotary driving source based on a direction instruction input signal, a current amplifier/limiter which converts a voltage outputted from the direction-switching means into a corresponding current and which limits the current with reference to a preset reference current Ior a threshold value, a current sensor which detects the current supplied to the rotary driving source, and a current loop by which a detection signal from the current sensor is fed back to an upstream side of the current amplifier/limiter.

Control apparatus for electric actuator

Growing community of inventors

Moriya, Japan

Takeshi Hirose