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11. 发明申请

US20210127520A1 CONNECTION STRUCTURE AND ASSEMBLY 有权
公开(公告)号：US20210127520A1
公开(公告)日：2021-04-29
申请号：US17075851
申请日：2020-10-21
申请人： FANUC CORPORATION
发明人： Ryou MATSUDA , Taku SASAKI
IPC分类号： H05K7/12 , H05K1/02 , H05K1/14
摘要： A connection structure includes: a support column member extending in one direction from one end to an opposite end, with the one end attached to an installation object and the opposite end having formed therein a screw hole, the support column member being configured to be non-insertable into the through hole; a surrounding member provided on a first surface of the printed board and configured to surround the opening of the through hole and to allow the opposite end of the support column member to be inserted into the surrounding member; and a fastener configured to fix the support column member to the printed board by being screw-engaged into the screw hole of the support column member inserted into the surrounding member, from a second surface side opposite to the first surface of the printed board.

12. 发明申请

US20190245469A1 MOTOR DRIVE APPARATUS FOR ESTIMATING STRAY CAPACITANCE 审中-公开
公开(公告)号：US20190245469A1
公开(公告)日：2019-08-08
申请号：US16261575
申请日：2019-01-30
申请人： FANUC CORPORATION
发明人： Ryou MATSUDA , Taku SASAKI
IPC分类号： H02P23/14 , H02P27/06
CPC分类号： H02P23/14 , H02P27/06
摘要： A motor drive apparatus includes an inverter configured to convert an input DC voltage into an AC voltage for driving a motor, by ON/OFF driving of an internal power element, and outputs the AC voltage, a high-frequency current detection unit configured to detect a high-frequency current from a current flowing through a motor power line upon application of the AC voltage output from the inverter to the motor via the motor power line, and a stray capacitance estimation unit configured to estimate a stray capacitance occurring in the motor power line and the motor, based on the high-frequency current detected by the high-frequency current detection unit.

13. 发明申请

US20180350721A1 HEAT SINK AND HEAT SINK ASSEMBLY 审中-公开
公开(公告)号：US20180350721A1
公开(公告)日：2018-12-06
申请号：US15972559
申请日：2018-05-07
申请人： FANUC CORPORATION
发明人： Masato WATANABE , Taku SASAKI
IPC分类号： H01L23/473 , H01L25/07
CPC分类号： H01L23/473 , F28D15/00 , F28D2021/0029 , F28F3/02 , F28F3/12 , F28F2215/04 , H01L23/3672 , H01L23/3735 , H01L23/3736 , H01L25/072 , H01L25/115 , H01L29/1608
摘要： A heat sink capable of dissipating heat concentrating on a chip portion of a power semiconductor device module efficiently is provided. A heat sink (20) includes a heat sink body (21) in which a power semiconductor device module (10) having a plurality of power semiconductor devices (11) is placed on a cooling surface F1 and which radiates heat generated by the power semiconductor device (11); and a heat dissipation structure portion (25) having a higher heat conductivity than the heat sink body (21) and capable of dissipating heat generated by the power semiconductor device (11), wherein the heat dissipation structure portion (25) is provided at a position overlapping the power semiconductor device (11) disposed in the power semiconductor device module (10) in a direction (Z) orthogonal to the cooling surface (F1) of the heat sink body (21).

14. 发明申请

US20180335764A1 MOTOR DRIVING APPARATUS 审中-公开
公开(公告)号：US20180335764A1
公开(公告)日：2018-11-22
申请号：US15964481
申请日：2018-04-27
申请人： FANUC CORPORATION
发明人： Kunio TSUCHIDA , Taku SASAKI , Nobuo HIRAYAMA
IPC分类号： G05B19/33 , H02P8/14
CPC分类号： G05B19/33 , G05B2219/37092 , G05B2219/37181 , H02P8/14
摘要： To provide a motor driving apparatus capable of obtaining high detection resolution irrespective of whether a frequency of a signal from a detector is high or low. A motor driving apparatus for driving a motor includes an amplifier circuit for receiving a signal from a detector for outputting information including a position and a speed of the motor as the signal, and amplifying the received signal with a set amplification factor, a frequency detecting part for detecting a frequency of the signal, and an amplification factor setting part for changing setting of the amplification factor of the amplifier circuit according to the frequency detected by the frequency detecting part.

15. 发明申请

US20180067148A1 CURRENT DETECTION CIRCUIT NOT AFFECTED BY NOISE 审中-公开
公开(公告)号：US20180067148A1
公开(公告)日：2018-03-08
申请号：US15692325
申请日：2017-08-31
申请人： FANUC CORPORATION
发明人： Kunio TSUCHIDA , Taku SASAKI , Kiichi INABA
IPC分类号： G01R19/00 , G01R19/18 , G01R19/165
CPC分类号： G01R19/0053 , G01R1/203 , G01R1/30 , G01R19/0092 , G01R19/16538 , G01R19/18
摘要： A current detection circuit includes: a resistor in a current path; first and second signal transmission units that transmit signals of first and second terminal sides of the resistor; a first difference operation unit that executes a difference operation on the signals transmitted by the first and second signal transmission units; a noise-capturing transmission unit starting point; third and fourth signal transmission units connected with the noise-capturing transmission unit starting point; a second difference operation unit that executes a difference operation on the signals transmitted by the third and fourth signal transmission units; and a summing operation unit that executes a summing operation on the first and second difference signals, wherein the first signal transmission unit and the fourth signal transmission unit are disposed close to each other and the second signal transmission unit and the third signal transmission unit are disposed close to each other.

16. 发明申请

US20130345837A1 MASTER DEVICE THAT CHANGES DATA COMMUNICATION SPEED IN ACCORDANCE WITH THE NUMBER OF SLAVE DEVICES 有权
标题翻译：根据下列设备数量更改数据通信速度的主设备
公开(公告)号：US20130345837A1
公开(公告)日：2013-12-26
申请号：US13924876
申请日：2013-06-24
申请人： FANUC Corporation
发明人： Taku SASAKI
IPC分类号： G05B19/18
CPC分类号： G05B19/18 , G05B19/042 , G05B2219/25103 , G05B2219/33125 , Y02P90/185
摘要： A call unit transmits a call signal to verify the presence or absence of slave devices, which correspond to motors, to all of the slave devices after a master device is activated. A response reception unit determines the number of the slave devices, based on the number of response signals to the call signals. A communication speed change determination unit determines whether or not a data communication speed between the master device and the slave devices should be changed from a first speed to a second speed different from the first speed during a period from the time when the number of the slave devices is determined to the time when the drive of the motors is stopped, in accordance with a result of comparison of between the number of the slave devices and a predetermined number.
摘要翻译：在主设备被激活之后，呼叫单元发送呼叫信号以验证对应于电机的从设备的存在或不存在于所有从设备。响应接收单元基于对呼叫信号的响应信号的数量来确定从设备的数量。通信速度变化确定单元确定在从从设备的数量到从设备的数量的时间段期间，主设备和从设备之间的数据通信速度是否应该从第一速度改变到与第一速度不同的第二速度根据从属设备的数量和预定数量之间的比较结果，确定设备停止电动机的驱动时间。

17. 发明申请

US20130278197A1 MOTOR CONTROL APPARATUS EQUIPPED WITH DELTA-SIGMA MODULATION AD CONVERTER 有权
标题翻译：配有DELTA-SIGMA调制AD转换器的电机控制装置
公开(公告)号：US20130278197A1
公开(公告)日：2013-10-24
申请号：US13790719
申请日：2013-03-08
申请人： FANUC CORPORATION
发明人： Taku SASAKI , Yasusuke IWASHITA
IPC分类号： H02P23/00
CPC分类号： H02P23/00 , H03M3/494
摘要： A motor control apparatus includes a power conversion unit which supplies drive power to a motor, a current detection unit which detects the value of a current flowing from the power conversion unit to the motor, a delta-sigma modulation AD converter to which the current value detected by the current detection unit is input as analog data, and which includes a modulator and a plurality of digital low-pass filters and outputs digital data in accordance with the filter characteristics of the respective digital low-pass filters, and a command generating unit which is connected to the digital low-pass filter to be used for motor drive control among the plurality of digital low-pass filters, and which generates a drive command to the power conversion unit by using the digital data output from the motor drive controlling digital low-pass filter.
摘要翻译：电动机控制装置包括向电动机提供驱动电力的电力转换单元，检测从电力转换单元流向电动机的电流的值的电流检测单元，电流值的Δ-Σ调制AD转换器由电流检测单元检测的信号作为模拟数据输入，并且包括调制器和多个数字低通滤波器，并且根据各个数字低通滤波器的滤波特性输出数字数据，以及指令生成单元其连接到数字低通滤波器，用于多个数字低通滤波器之间的电动机驱动控制，并且通过使用从电动机驱动器输出的数字数据产生驱动命令，控制数字低通滤波器。

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