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1. 发明申请

US20180141092A1 FAN OR PUMP ARRANGEMENT AND OPERATING METHOD 审中-公开
公开(公告)号：US20180141092A1
公开(公告)日：2018-05-24
申请号：US15574792
申请日：2016-05-20
申请人： Fisher & Paykel Appliance Limited
发明人： Mervyn John Davies , David James Hammond , Zhuang Tian
IPC分类号： B08B7/02 , H02P25/032 , H02K29/06 , H02P6/30 , F04D19/00 , F04D29/70
CPC分类号： B08B7/02 , F04D17/00 , F04D17/04 , F04D19/005 , F04D29/703 , H02K29/06 , H02P6/30 , H02P25/032
摘要： An electric fan with a self-cleaning mode to energise rotating fan blades in alternate forward and reverse directions to create a vibration in order to shake built-up dust or dirt particles from the blades in a frequency at which the rotational direction is alternated set to a known or detected resonant frequency of the blades thereby excite resonant modes and maximise the amplitude of vibrations. The self-cleaning operation may be triggered by detection of excessive/abnormal loading on the motor. The fan may be operated in a vibration detecting mode over a range of rotational speeds to locate speeds that produce resonance, or to detect a fault with the fan. Motor reversal frequencies corresponding to resonance-inducing speeds may be used in the self-cleaning mode. The vibration detecting mode may be carried out while the at least one blade is rotated in a direction opposite to its normal operational rotational direction.

2. 发明授权

US09957746B2 Motor unit, motor with speed reduction mechanism, and sliding door automatic opening/closing device 有权
公开(公告)号：US09957746B2
公开(公告)日：2018-05-01
申请号：US15109838
申请日：2015-01-26
申请人： Mitsuba Corporation
发明人： Akihiro Kaihatsu , Masazumi Ishikawa
IPC分类号： H02K5/22 , E05F15/643 , F16H1/28 , H02K29/06 , H02K1/14 , H02K7/116 , H02K11/21 , H02K11/33 , B60J5/04 , E05D15/06 , E05D15/10 , F16H57/08
CPC分类号： E05F15/643 , B60J5/047 , E05D15/0621 , E05D15/10 , E05Y2201/404 , E05Y2201/442 , E05Y2201/654 , E05Y2201/668 , E05Y2900/531 , F16H1/28 , F16H57/082 , H02K1/148 , H02K5/225 , H02K7/116 , H02K11/21 , H02K11/33 , H02K29/06 , H02K2211/03
摘要： Disclosed is a motor unit including: an electric motor; a motor housing (6) configured to accommodate the electric motor; and a control substrate (70) including a sensor element (72S) to detect a position of an inner rotor of the electric motor in a rotational direction. The motor housing (6) includes a substrate accommodating portion (80) configured to accommodate at least a portion of the control substrate (70); a positioning portion (81) that is formed in the substrate accommodating portion (80), and positions the control substrate (70); and a screw configured to fix a stator of the electric motor to the positioning portion (81).

3. 发明申请

US20180019645A1 MOTOR 审中-公开
公开(公告)号：US20180019645A1
公开(公告)日：2018-01-18
申请号：US15716617
申请日：2017-09-27
申请人： Nidec Corporation
发明人： Kazuya KITAJI , Jun NAGASAWA , Keizo FURUKAWA
IPC分类号： H02K29/08 , H02K1/27 , H02K1/30 , H02K1/16
CPC分类号： H02K11/215 , H02K1/16 , H02K1/2733 , H02K1/30 , H02K29/06 , H02K29/08
摘要： A motor includes a rotating portion with a shaft extending along a rotation axis and a rotor that rotates together with the shaft, a stationary portion with a stator located radially outside of the rotor and a magnetic sensor located above the rotor to detect a rotational position of the rotor. The rotor includes a rotor core, a rotor magnet located radially outside of the rotor core and under the magnetic sensor, in contact with the rotor core or located opposite to the rotor core with a first gap therebetween. A recessed portion is recessed from each of an upper end surface and an outer circumferential surface of the rotor core. An inner circumferential surface of a lower end portion of the rotor holder is fixed to a radially inner surface of the recessed portion.

4. 发明申请

US20170324304A1 ELECTRIC MOTOR, CONTROL DEVICE, AND MOTOR CONTROL SYSTEM 审中-公开
公开(公告)号：US20170324304A1
公开(公告)日：2017-11-09
申请号：US15523269
申请日：2015-10-29
申请人： DENSO CORPORATION , SOKEN, INC. , National University Corporation Shizuoka University
发明人： Koji ITO , Masanori YASUDA , Shinji MAKITA , Jun YAMAOKA , Masao TOKUNAGA , Etsuro YOSHINO , Junichi ASAMA
IPC分类号： H02K7/09 , H02K11/21 , F16C32/04 , H02K21/22 , H02K5/16 , H02K29/06
CPC分类号： H02K7/09 , F16C19/06 , F16C32/04 , F16C32/0402 , F16C32/0457 , F16C32/048 , F16C32/0497 , F16C39/06 , F16C39/063 , H02K5/16 , H02K5/161 , H02K11/20 , H02K11/21 , H02K21/22 , H02K29/06 , H02K2205/03 , H02P1/00 , H02P6/16
摘要： In an electric motor, a magnetic bearing generates an electromagnetic force between multiple permanent magnets and a coil and rotatably supports an other side of a rotation shaft in an axis line direction. The rotation shaft is configured to be capable of being inclined with a rotation center line using a bearing side of the rotation shaft as a fulcrum. An electronic control device controls a current that flows to the coil such that an axis line of the rotation shaft approaches the rotation center line due to a supporting force which is the electromagnetic force between the multiple permanent magnets and the coil. Accordingly, the rotation shaft is rotatably supported to be freely rotatable by a magnetic bearing and the bearing.

5. 发明授权

US09634551B2 Direct current brushless motor 有权
公开(公告)号：US09634551B2
公开(公告)日：2017-04-25
申请号：US14698835
申请日：2015-04-28
申请人： Clifford R. Rabal
发明人： Clifford R. Rabal
IPC分类号： H02P25/00 , H02K47/14 , H02K29/06 , H02K21/24 , H02J7/00
CPC分类号： H02P11/04 , H02J7/0068 , H02J7/35 , H02K7/025 , H02K21/24 , H02K29/06 , H02K47/14 , H02K53/00 , H02P6/16 , Y10S74/09
摘要： A motor includes a frame, a shaft rotatably mounted onto the frame, and at least one disc mounted onto the shaft. At least one permanent magnet is mounted on the disc, and at least one electromagnet and at least one coil are mounted to the frame in rotational magnetic proximity to the permanent magnet. A battery is connectable to the electromagnet and the coil for energizing the electromagnet and for receiving electrical current from the coil for charging the battery. A relay switch controls the transmission of electrical power from the battery to the electromagnet. A sensor generates a signal to the relay switch to activate electrical power to the electromagnet upon sensing that the permanent magnet is positioned with respect to the electromagnet such that a magnetic force generated by the electromagnet would be effective for inducing movement of the permanent magnet and consequent rotation of the disc.

6. 发明申请

US20170085203A1 SELF-SWITCHING, REVERSIBLE LINEAR ACTUATOR HAVING BIFILAR CONTROL 审中-公开
公开(公告)号：US20170085203A1
公开(公告)日：2017-03-23
申请号：US15310593
申请日：2015-06-02
申请人： MMT SA
发明人： Gaël ANDRIEUX , Antoine FOUCAUT
IPC分类号： H02P25/064 , H02P23/30 , H02P23/24 , H02P23/00
CPC分类号： H02P25/064 , H02K7/06 , H02K11/215 , H02K29/06 , H02P6/08 , H02P6/16 , H02P23/0004 , H02P23/0077 , H02P23/24 , H02P23/30
摘要： A mechatronic assembly for linearly driving a member includes a control unit and an actuator, the control unit including a control algorithm and a power bridge, the algorithm controlling the power bridge, the power bridge providing a bifilar electrical signal consisting of a torque signal and a direction signal, the actuator including an electric motor which does not have an N-phase multiphase brush, binary probes for detecting the position of the rotor of the motor, a device for transforming the rotational movement of the rotor into a linear movement of the control member, power switches capable of powering the N phases of the motor on the basis of the bifilar electrical signal, and the state of the power switches is controlled directly by a signal from the detection probes.

7. 发明授权

US09500724B2 Magnetic encoder 有权
标题翻译：磁编码器
公开(公告)号：US09500724B2
公开(公告)日：2016-11-22
申请号：US14078744
申请日：2013-11-13
申请人： PORTESCAP SA
发明人： Julian Berney , Julien Baudey
IPC分类号： G01R33/07 , H02K29/08 , H02K29/06 , G01D11/30 , G01B7/30 , G01D5/14
CPC分类号： G01R33/07 , G01B7/30 , G01D5/145 , G01D11/30 , H02K11/215 , H02K29/06 , H02K29/08
摘要： Encoder including a moveable part with at least one magnetic dipole, at least one Hall Effect sensor with a sensitive area arranged to detect a magnetic field created by the magnetic dipole, at least one circuit board with a main thickness and having an attachment portion on which the Hall Effect sensor is mounted, where the Hall Effect sensor is a semiconductor die sensor with the sensitive area arranged on an external face of the semiconductor die, where the Hall Effect sensor is flip chip mounted onto the attachment portion of the circuit board, with the sensitive area in contact with the circuit board, and where the attachment portion is arranged between the Hall Effect sensor and the magnetic dipole and presents a reduced thickness compared to the main thickness of the rest of the circuit board.

8. 发明授权

US09419547B2 Switch type DC electric machine having auxiliary excitation winding and conduction ring and brush 有权
标题翻译：开关式直流电机具有辅助励磁绕组和导电环和电刷
公开(公告)号：US09419547B2
公开(公告)日：2016-08-16
申请号：US13914831
申请日：2013-06-11
申请人： Tai-Her Yang
发明人： Tai-Her Yang
IPC分类号： H02K21/04 , H02P6/00 , H02K29/06 , H02K23/66
CPC分类号： H02P6/28 , H02K21/042 , H02K23/66 , H02K29/06
摘要： The present invention provides an auxiliary excitation winding set to be installed at the rotary part of the electric machine (104) composed of a rotary part of the permanent magnetic electric machine or a rotary part of the reluctance electric machine of the switched DC electric machine with conduction ring and brush (1000), and an electric conduction ring and brush device (107) is served as an interface for transmitting the electric power, thereby inputting the excitation electric power to the auxiliary excitation winding set; and through controlling the value and the polarity of excitation voltage and current, the magnetic pole of the rotary part of magnet-motive electric machine (104) of the switched DC electric machine with conduction ring and brush (1000) can be performed with the excitation effect of auxiliary excitation or differential excitation or auxiliary compound excitation or differential compound excitation.
摘要翻译：本发明提供一种辅助励磁绕组，其安装在由永磁电机的旋转部或开关式直流电机的磁阻电机的旋转部构成的电机（104）的旋转部上，导电环和电刷（1000），并且导电环和电刷装置（107）用作传输电力的接口，从而将激励电力输入到辅助励磁绕组; 通过控制励磁电压和电流的极性和极性，可以用励磁电流和电流（1000）对具有导通环和电刷（1000）的开关式直流电机的磁力驱动电机（104）的旋转部分的磁极进行控制辅助激励或差分激励或辅助化合物激发或微分化合物激发的影响。

9. 发明申请

US20160226339A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：US20160226339A1
公开(公告)日：2016-08-04
申请号：US15002652
申请日：2016-01-21
申请人： MAKITA CORPORATION
发明人： Akira NIWA , Kei KOUDA
IPC分类号： H02K7/14 , H02K3/24 , H02K1/27 , H02K11/21 , H02K3/28
CPC分类号： H02K7/145 , H02K1/14 , H02K1/27 , H02K3/24 , H02K3/28 , H02K5/08 , H02K5/225 , H02K9/02 , H02K11/21 , H02K11/215 , H02K29/06 , H02K29/08 , H02K2203/09 , H02K2211/03
摘要： A power tool (1) includes a brushless motor (8) having a stator (9) and a rotor (10). The stator (9) includes: a tubular stator core (60); front and rear insulators (61, 62) fixed to the stator core; and coils (64), which are wound around a plurality of teeth (63) on the stator core. The rotor (10) includes: a rotor core (67) disposed within the stator; a rotary shaft (11) fixed to the rotor core; and one or more permanent magnets (68) fixed to the rotor core. A sensor-circuit board (65) detects the position(s) of the permanent magnet(s) and is fixed to the stator. One or more notched parts (91) is/are formed, in an outer circumference of the sensor-circuit board, between circumferentially-adjacent teeth in an axial direction of the stator. The notch part(s) allow(s) air for cooling the brushless motor to pass more easily through the interior of the stator.
摘要翻译：电动工具（1）包括具有定子（9）和转子（10）的无刷电动机（8）。定子（9）包括：管状定子芯（60）; 固定在所述定子铁芯上的前后绝缘体（61,62）以及卷绕在定子铁芯上的多个齿（63）周围的线圈（64）。转子（10）包括：设置在定子内的转子芯（67）; 固定在转子芯上的旋转轴（11）; 和一个或多个固定到转子芯上的永磁体（68）。传感器电路板（65）检测永磁体的位置并固定在定子上。在传感器电路板的外周中，在定子的轴向上在周向相邻的齿之间形成有一个或多个切口部（91）。切口部分允许空气冷却无刷电动机以更容易地通过定子内部。

10. 发明授权

US09093933B2 Method and apparatus for monitoring rotational position of an electric machine 有权
标题翻译：用于监测电机旋转位置的方法和装置
公开(公告)号：US09093933B2
公开(公告)日：2015-07-28
申请号：US14010632
申请日：2013-08-27
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Jihoon Jang , Yo Chan Son , Steven E. Schulz , Leah Dunbar , Terry Murrell , Daniel L. Kowalewski , Silva Hiti
IPC分类号： H02P7/00
CPC分类号： H02P7/0094 , H02K11/21 , H02K29/06 , H02P6/17 , H02P2203/00
摘要： A method for monitoring an electric motor employing a pulse-type rotational position sensor includes monitoring a signal output from the pulse-type rotational position sensor and a reference signal associated with a control signal for the electric motor. A position of a rotor of the electric motor coincident with the reference signal is determined based upon a nominal rotor position, a nominal rotational speed of the rotor and a time between the reference signal and a falling edge of the signal output from the pulse-type rotational position sensor. The electric motor is controlled based upon the position of the rotor.
摘要翻译：用于监测采用脉冲型旋转位置传感器的电动机的方法包括监视从脉冲型旋转位置传感器输出的信号和与用于电动机的控制信号相关联的参考信号。与参考信号一致的电动机转子的位置基于转子的标称转子位置，转子的标称转速以及参考信号与从脉冲型输出的信号的下降沿之间的时间来确定旋转位置传感器基于转子的位置来控制电动机。

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