公开(公告)号：US20130342013A1

公开(公告)日：2013-12-26

申请号：US13924796

申请日：2013-06-24

Applicant: Fanuc Corporation

Inventor： Naoki MASUDA ,  Kiichi INABA

IPC: H02J9/00

CPC classification number: H02J9/005 ,  H02J3/14 ,  H02P1/00 ,  H02P21/22 ,  H02P29/026 ,  Y10T307/391

Abstract: A motor control device has a current value sampling unit configured to sample a current value of a motor, a PWM signal generation unit configured to generate a PWM signal to drive the motor, based on the sampled current value of the motor, and a power supply stop unit configured to stop supply of power from a control power supply to a peripheral depending on power stored in a DC link part and power to which the control power source can supply when an alternating-current power source fails.

Abstract translation: 电动机控制装置具有：电流值采样单元，被配置为对电动机的当前值进行采样; PWM信号生成单元，被配置为基于电动机的采样电流值产生用于驱动电动机的PWM信号;以及电源 停止单元，其被配置为根据存储在直流链路部分中的功率和当交流电源故障时控制电源可以供应的电力来停止从控制电源向外围设备供电。

公开(公告)号：US20130342149A1

公开(公告)日：2013-12-26

申请号：US13916730

申请日：2013-06-13

Applicant: Fanuc Corporation

Inventor： Naoki MASUDA ,  Kiichi INABA

IPC: H02P3/02

CPC classification number: H02P3/02 ,  H02P3/18 ,  H02P29/025

Abstract: A PWM signal generation unit generates a PWM signal to drive a motor, based on a current value of the motor sampled by a current value sampling unit, a position or speed of the motor sampled by a motor sampling unit, and a position or speed of a driven object sampled by a driven object sampling unit. An operation stop unit stops the operation of any one of the motor sampling unit and the driven object sampling unit depending on the power stored in the DC link part and power to which the control power source can supply when the alternating-current power source fails.

Abstract translation: PWM信号生成单元基于由电流值采样单元采样的电动机的电流值，由电动机采样单元采样的电动机的位置或速度，以及位置或速度来产生用于驱动电动机的PWM信号 被驱动对象采样单元采样的被驱动对象。 操作停止单元根据在直流链路部分中存储的功率以及当交流电源发生故障时控制电源可以供应的电力来停止电动机采样单元和从动对象采样单元中的任何一个的操作。

公开(公告)号：US20180279505A1

公开(公告)日：2018-09-27

申请号：US15920623

申请日：2018-03-14

Applicant: FANUC CORPORATION

Inventor： Hironao TANOUCHI ,  Naoki MASUDA

IPC: H05K7/20 ,  H05K1/02 ,  F28F3/02 ,  F28F13/06

CPC classification number: H05K7/20154 ,  F28F3/02 ,  F28F13/06 ,  H05K1/0203 ,  H05K7/20145 ,  H05K7/20909

Abstract: The present invention has an object of providing a motor drive device provided with a cooling mechanism by way of a fan motor, which is capable of also cooling separate elements in the surroundings of a heat generating element due to further improving the cooling function. The motor drive device is equipped with a fan motor, and a heat sink which cools the heat generating element on a printed substrate by way of exchanging heat with the heat generating element, in which the heat sink includes a main body of cylindrical shape fixed to the heat generating element, and having an air duct through which cooling airflow flows, and a communication hole that communicates from an exposed outer circumferential face of the main body to the air duct, and in which the fan motor generates cooling airflow that flows through the air duct.