-
1.发明申请公开(公告)号：US20190245474A1
公开(公告)日：2019-08-08
申请号：US16267790
申请日：2019-02-05
Applicant: FANUC CORPORATION
Inventor： Yuuta GOTOU , Yasuyuki MATSUMOTO , Masaya TATEDA
Abstract: A motor drive apparatus includes a converter configured to convert AC power of an AC power supply into DC power and outputs the DC power, a DC link unit including capacitors connected in series with each other, an inverter connected in parallel with the DC link unit, and configured to convert the DC power of the DC link unit into AC power for driving a motor, and outputs the AC power, and a short-circuit judgment unit configured to judge that at least one of the capacitors in the DC link unit has shorted in the case where, when the value of a voltage applied to a positive and negative bipolar terminal of the DC link unit is smaller than a first threshold, the value of an input current flowing from the AC power supply into the DC link unit via the converter is larger than a second threshold.
-
公开(公告)号：US20190157002A1
公开(公告)日：2019-05-23
申请号：US16136425
申请日：2018-09-20
Applicant: FANUC CORPORATION
Inventor： Yuuki INOUE , Masaya TATEDA
Abstract: A resin molded substrate has at least a pair of terminal through holes for allowing lead terminals of a cylindrical capacitor to be inserted through, and at least one protrusion for supporting a side of a bottom portion of the capacitor so as to space from a front surface of the substrate the side of the bottom portion of the capacitor having the lead terminals inserted through the terminal through holes. The pair of lead terminals at the bottom portion are inserted through the terminal through holes of the resin molded substrate, whereby the capacitor is mounted in an upright state with a solder, so that the protrusion spaces the side of the bottom portion from the front surface of the resin molded substrate.
-
Patent Agency Ranking
公开(公告)号：US20200227206A1
公开(公告)日：2020-07-16
申请号：US16831641
申请日：2020-03-26
Applicant: FANUC CORPORATION
Inventor： Yuuki INOUE , Masaya TATEDA
Abstract: A resin molded substrate has at least a pair of terminal through holes for allowing lead terminals of a cylindrical capacitor to be inserted through, and at least one protrusion for supporting a side of a bottom portion of the capacitor so as to space from a front surface of the substrate the side of the bottom portion of the capacitor having the lead terminals inserted through the terminal through holes. The pair of lead terminals at the bottom portion are inserted through the terminal through holes of the resin molded substrate, whereby the capacitor is mounted in an upright state with a solder, so that the protrusion spaces the side of the bottom portion from the front surface of the resin molded substrate.
-
4.发明申请公开(公告)号：US20150194922A1
公开(公告)日：2015-07-09
申请号：US14591500
申请日：2015-01-07
Applicant: FANUC Corporation
Inventor： Hiroyasu SATO , Masaya TATEDA , Akira HIRAI
IPC: H02P27/06
CPC classification number: G01R31/346 , G01R27/025 , G01R31/14
Abstract: A motor drive device of the present invention includes: a rectification circuit configured to rectify an AC voltage; a power source unit configured to smooth a DC voltage by a capacitor; an inverter unit configured to drive a motor by converting a DC voltage into an AC voltage; a current detection unit configured to measure a current flowing through a resistor which is connected to a coil of the motor and the capacitor; a voltage detection unit configured to measure a value of a voltage across the capacitor; a second switch that grounds the capacitor; and an insulation resistance detection unit configured to detect an insulation resistance value of a motor by using two sets of a current value and a voltage value measured in two states where the second switch is turned off and turned on.
Abstract translation: 本发明的电动机驱动装置包括：整流电路，对交流电压进行整流; 电源单元，被配置为通过电容器平滑DC电压; 逆变器单元，被配置为通过将DC电压转换成AC电压来驱动电动机; 电流检测单元，被配置为测量流过连接到电动机的线圈和电容器的电阻器的电流; 电压检测单元，被配置为测量电容器两端的电压值; 使电容器接地的第二开关; 以及绝缘电阻检测单元，被配置为通过使用两组电流值和在第二开关断开和接通的两种状态下测量的电压值来检测电动机的绝缘电阻值。
-
公开(公告)号：US20210194604A1
公开(公告)日：2021-06-24
申请号：US17129264
申请日：2020-12-21
Applicant: FANUC CORPORATION
Inventor： Daishi GOTOU , Masaya TATEDA
Abstract: A monitoring device includes: an acquisition unit for acquiring a clock signal output from a communication circuit that outputs the clock signal; and a monitoring unit for analyzing the waveform of the clock signal acquired by the acquisition unit, based on a predetermined reference clock signal having a period equal to or shorter than a period of the clock signal to thereby determine whether or not there is a sign of malfunction in the communication circuit.
-
公开(公告)号：US20180138608A1
公开(公告)日：2018-05-17
申请号：US15807031
申请日：2017-11-08
Applicant: FANUC CORPORATION
Inventor： Masaya TATEDA , Yuuta SATOU , Kaname MATSUMOTO
CPC classification number: H01R11/01 , H01R4/34 , H01R9/2458 , H01R11/09 , H02P5/00 , H02P2201/13
Abstract: A connection member includes: a first short bar whose one end is attached to a first terminal block; a second short bar which extends in a longitudinal direction of the first short bar and whose one end is attached to a second terminal block, at least part of the other end of the second short bar overlapping the first short bar; and a guide member which is attached to an overlapping part of the first short bar and the second short bar and which allows the second short bar to move relative to the first short bar in the longitudinal direction while maintaining surface contact between the first short bar and the second short bar at the overlapping part.
-
7.发明申请公开(公告)号：US20140056338A1
公开(公告)日：2014-02-27
申请号：US13975794
申请日：2013-08-26
Applicant: FANUC CORPORATION
Inventor： Masaya TATEDA , Hiroyasu SATO
IPC: H04B1/40
CPC classification number: H04B1/40 , G05B2219/34434 , G08C19/00 , H02P5/00
Abstract: A data reception unit carries out reception of data, which consists of a combination of switching noise resistant states and switching noise nonresistant states, over a fixed serial communication time a plurality of times for each fixed serial communication period same as the one or a plurality of the switching periods. A serial communication time setting unit sets the serial communication time different from one or a plurality of the switching periods, based on the switching period, the serial communication period, and the communication speed of the data communication device, so that the starts of all of the switching periods within the serial communication time are consistent with the time of reception of the switching noise resistant state at the time of at least one of the reception of the data among a plurality of times of the reception of the data.
Abstract translation: 数据接收单元对于与固定的串行通信时间相同的固定串行通信时间多次来执行数据的接收，该数据由开关抗噪声状态和开关噪声非阻抗状态的组合组成， 切换周期。 串行通信时间设定单元基于数据通信设备的切换周期，串行通信周期和通信速度来设定与一个或多个切换周期不同的串行通信时间，从而全部开始 串行通信时间内的切换周期与在接收数据的多次之间的数据接收中的至少一个时刻的接收到开关抗噪声状态的时间一致。
-
-
-
-
-
-
Search Results
7
records
(took 0.012 seconds)
