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公开(公告)号：US09091600B2
公开(公告)日：2015-07-28
申请号：US14055045
申请日：2013-10-16
Applicant: FANUC CORPORATION
Inventor： Tatsuya Senoo
CPC classification number: G01K7/42 , G01K3/04 , G01K7/22 , G01K2205/00
Abstract: A coefficient value acquiring unit acquires values of coefficients C and K representing a relationship among a heat generation amount of a motor generated due to a loss Q1(t) of the motor, a temperature variation amount of the motor, and a placement position of a temperature detection device, using the loss Q1(t) of the motor, a detection temperature Td(t), and an ambient temperature Ta of the motor. The temperature estimating unit estimates a temperature Te(t) of the motor based on the values of the coefficients C and K, a preset reference value Cm of the coefficient C, a preset reference value Km of the coefficient K, the detection temperature Td(t), and the ambient temperature Ta of the motor.
Abstract translation: 系数值获取单元获取表示由于电动机的损耗Q1（t），电动机的温度变化量和电动机的放置位置而产生的电动机的发热量之间的关系的系数C和K的值 温度检测装置，使用电动机的损耗Q1（t），电动机的检测温度Td（t）和环境温度Ta。 温度估计单元基于系数C和K的值，系数C的预设参考值Cm，系数K的预设参考值Km，检测温度Td（...）来估计电动机的温度Te（t） t）和电机的环境温度Ta。
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公开(公告)号：US20140112369A1
公开(公告)日：2014-04-24
申请号：US14055045
申请日：2013-10-16
Applicant: FANUC CORPORATION
Inventor： Tatsuya Senoo
IPC: G01K3/04
CPC classification number: G01K7/42 , G01K3/04 , G01K7/22 , G01K2205/00
Abstract: A coefficient value acquiring unit acquires values of coefficients C and K representing a relationship among a heat generation amount of a motor generated due to a loss Q1(t) of the motor, a temperature variation amount of the motor, and a placement position of a temperature detection device, using the loss Q1(t) of the motor, a detection temperature Td(t), and an ambient temperature Ta of the motor. The temperature estimating unit estimates a temperature Te(t) of the motor based on the values of the coefficients C and K, a preset reference value Cm of the coefficient C, a preset reference value Km of the coefficient K, the detection temperature Td(t), and the ambient temperature Ta of the motor.
Abstract translation: 系数值获取单元获取表示由于电动机的损耗Q1（t），电动机的温度变化量和电动机的放置位置而产生的电动机的发热量之间的关系的系数C和K的值 温度检测装置，使用电动机的损耗Q1（t），电动机的检测温度Td（t）和环境温度Ta。 温度估计单元基于系数C和K的值，系数C的预设参考值Cm，系数K的预设参考值Km，检测温度Td（...）来估计电动机的温度Te（t） t）和电机的环境温度Ta。
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公开(公告)号：US11251664B2
公开(公告)日：2022-02-15
申请号：US16817099
申请日：2020-03-12
Applicant: FANUC CORPORATION
Inventor： Tatsuya Senoo
Abstract: A stator includes: a first wiring section connecting a coil wire end of a leading coil to a power line; and a second wiring section connecting a coil wire end of a last coil to a neutral point located on the power line side, by wiring that extends along a fewer-turns portion of the leading coil that has a smaller number of turns of wire than the last coil.
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公开(公告)号：US11196367B2
公开(公告)日：2021-12-07
申请号：US17080941
申请日：2020-10-27
Applicant: FANUC CORPORATION
Inventor： Tatsuya Senoo
IPC: G05B19/4103 , H02P6/16 , H02P6/24
Abstract: A control device of an electric motor that drives an axis influenced by gravity includes: a determination unit that determines whether an overrun operation to move past a target position of the axis is allowable; and a drive control unit that, in a case in which it is determined by the determination unit that the overrun operation is allowable and the axis is driven in an antigravity direction, controls driving of the electric motor so that, after the axis being driven to the overrun position past the target position in the antigravity direction, the axis is driven again in a gravity direction to stop at the target position.
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公开(公告)号：US10374540B2
公开(公告)日：2019-08-06
申请号：US15678800
申请日：2017-08-16
Applicant: FANUC CORPORATION
Inventor： Tatsuya Senoo
Abstract: A synchronous motor is driven by three phase alternate current. The rotor core includes a laminated body configured by laminating plate members made of electrical steel sheet. Each plate member is formed in a substantially circular shape in a plan view and formed with projections along an outer circumference thereof. The number of slots of the stator is 3xy when variable x is a natural number and variable y is a positive odd number. The number of poles of the rotor is (3y+1)x or (3y−1)x. The number of projections of each plate member is a common measure of (3y+1)x and (3y−1)x. The laminated body has a structure in which the plate members are laminated so that the projections are shifted relative to one another.
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Patent Agency Ranking
公开(公告)号：US10224766B2
公开(公告)日：2019-03-05
申请号：US14729169
申请日：2015-06-03
Applicant: FANUC CORPORATION
Inventor： Tatsuya Senoo
Abstract: Provided is a stator that can easily attach a coil to a tooth and that can reduce concentration of stress generated in the core during operation. The stator includes a plurality of divided cores aligned in a circumferential direction. Each divided core includes a tooth, and a divided back yoke extending from an end on a radially outside of the tooth to a first circumferential side. A radial width of the divided back yoke is smaller than or equal to a circumferential width of the tooth. A connecting surface is arranged at an end on a second circumferential side of the divided yoke, the connecting surface being a plane or a convex surface extending from a side surface on the second circumferential side of the tooth to an outer circumferential surface of the divided back yoke.
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公开(公告)号：US20180115201A1
公开(公告)日：2018-04-26
申请号：US15848676
申请日：2017-12-20
Applicant: FANUC CORPORATION
Inventor： Tatsuya Senoo
IPC: H02K1/14
Abstract: Provided is a stator that can easily attach a coil to a tooth and that can reduce concentration of stress generated in the core during the operation. The stator includes a core with an annular back yoke, and a plurality of teeth aligned in a circumferential direction, each tooth extending toward a radially inside from the back yoke; and a coil wound around each of the plurality of teeth. The core includes a plurality of divided cores aligned in the circumferential direction. Each divided core includes the tooth, and a divided back yoke extending from an end on a radially outside of the tooth to a first circumferential side. A radial width of the divided back yoke is smaller than or equal to a circumferential width of the tooth. A connecting surface is arranged at an end on a second circumferential side of the divided yoke, the connecting surface being a plane or a convex surface extending from a side surface on the second circumferential side of the tooth to an outer circumferential surface of the divided back yoke.
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公开(公告)号：US20160365811A1
公开(公告)日：2016-12-15
申请号：US15165599
申请日：2016-05-26
Applicant: FANUC CORPORATION
Inventor： Tatsuya Senoo
Abstract: A control apparatus of a synchronous motor according to the present invention includes: a current command generation unit for generating a d-phase current command and a q-phase current command; a current detection unit for detecting a d-phase current and a q-phase current; a short-circuiting device for short-circuiting the synchronous motor to apply dynamic braking to the synchronous motor; and a short-circuit control unit for controlling the short-circuiting device; wherein the current command generation unit controls the q-phase current command so as to decrease the q-phase current after receipt of a dynamic braking signal; and the short-circuit control unit controls the short-circuiting device to short-circuit the synchronous motor after the receipt of the dynamic braking signal and after a lapse of a predetermined time from the control of the q-phase current command by the current command generation unit.
Abstract translation: 根据本发明的同步电动机的控制装置包括：电流指令生成单元，用于产生d相电流指令和q相电流指令; 用于检测d相电流和q相电流的电流检测单元; 用于短路同步电动机以向同步电动机施加动态制动的短路装置; 以及用于控制所述短路装置的短路控制单元; 其中电流指令产生单元控制q相电流指令以便在接收到动态制动信号之后减小q相电流; 并且短路控制单元控制短路装置在接收到动态制动信号之后以及在通过当前命令从q相电流命令的控制经过预定时间之后使同步电动机短路 发电机组。
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公开(公告)号：US20160352275A1
公开(公告)日：2016-12-01
申请号：US15098768
申请日：2016-04-14
Applicant: FANUC CORPORATION
Inventor： Tatsuya Senoo
IPC: H02P21/14
CPC classification number: H02P29/662 , H02P29/664 , H02P29/67
Abstract: A temperature estimating apparatus for a synchronous motor comprises: a voltage command generating unit for controlling d-phase current by increasing or decreasing d-phase and q-phase voltages; a voltage acquiring unit for d-phase and q-phase voltages when the d-phase current is varied; a rotating speed detecting unit for the synchronous motor; a current detecting unit for the d-phase and q-phase currents; a winding temperature acquiring unit; a winding resistance converting unit for winding resistance from winding temperature; an inductance calculating unit for d-axis inductance based on the variation of the d-phase current and the q-phase voltage and on the rotating speed; a counter electromotive voltage constant calculating unit from the q-phase voltage, the varied d-phase current, the rotating speed, the q-phase current, the winding resistance, and the d-axis inductance; and a magnet temperature estimating unit for estimating magnet temperature based on the counter electromotive voltage constant.
Abstract translation: 一种用于同步电动机的温度估计装置包括：电压指令产生单元，用于通过增加或减少d相和q相电压来控制d相电流; 电压获取单元，用于在d相电流变化时用于d相和q相电压; 用于同步电动机的转速检测单元; 用于d相和q相电流的电流检测单元; 绕组温度获取单元; 用于从绕组温度卷绕电阻的绕组电阻转换单元; 基于d相电流和q相电压的变化以及转速的d轴电感的电感计算单元; 从q相电压，变化的d相电流，转速，q相电流，绕组电阻和d轴电感的反电动势电压常数计算单元; 以及用于基于反电动势电压常数来估计磁体温度的磁体温度估计单元。
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30.发明申请ROTOR OF ELECTRIC MOTOR WHICH HAS MAGNETS, ELECTRIC MOTOR, AND METHOD OF PRODUCTION OF ROTOR 有权具有磁铁，电动机和转子生产方法的电动机的转子公开(公告)号：US20150180291A1
公开(公告)日：2015-06-25
申请号：US14574799
申请日：2014-12-18
Applicant: Fanuc Corporation
Inventor： Tatsuya Senoo
CPC classification number: H02K1/274 , H02K1/2773 , H02K15/03 , Y10T29/49012
Abstract: In the rotor of the present invention, each magnet has an inward part adjoining the rotor core and an outward part positioned outward of the inward part in a radial direction of the rotor core. The outward has a facing surface which faces a stator and a pair of side surfaces which extend from two end parts of the facing surface in a circumferential direction toward the inward part. The inward part has a pair of overhanging parts which overhangs outward in the circumferential direction with respect to the pair of side surfaces of the outward part. Each locking projection of the rotor core passes between overhanging parts of two adjoining magnets and projects outward in the radial direction to engage with the overhanging parts.
Abstract translation: 在本发明的转子中，每个磁体具有邻接转子芯的向内部分和位于转子芯的径向方向上位于向内部分的外侧的外部。 向外具有面向定子的面对面和从面对面的两端部向周向延伸的一对侧面。 向内部分具有一对相对于外侧部分的一对侧表面在圆周方向上向外伸出的伸出部分。 转子芯的每个锁定突起都穿过两个邻接磁体的伸出部分，并沿径向向外突出，以与悬垂部分接合。
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