公开(公告)号：US20230261533A1

公开(公告)日：2023-08-17

申请号：US17671639

申请日：2022-02-15

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Eric UBELHART

IPC: H02K1/2793 ,  H02K7/00 ,  B60K6/26 ,  H02K29/06 ,  H02K7/108

CPC classification number: H02K1/2793 ,  H02K7/006 ,  B60K6/26 ,  H02K29/06 ,  H02K7/108 ,  B60K2006/262

Abstract: A hybrid drive assembly having an e-motor with a housing fixed stator and a rotor that connects to a transmission. The e-motor rotor includes a rotor support having a mounting flange with a stop at one end. A diaphragm spring clamps a second rotor ring, a rotor stack, and a first rotor ring against the stop to rotationally fix the rotor stack to the mounting flange. A drive plate assembly for connection to a crankshaft includes an output flange that is: (a) frictionally engaged to the diaphragm spring and/or the second rotor ring such that upon application of a torque spike the output flange rotates relative to the diaphragm spring and/or the second rotor ring, or (b) rotationally fixed to the diaphragm spring such that upon application of a torque spike the diaphragm spring rotates relative to the mounting flange, forming in each case an overload clutch.

公开(公告)号：US20180141092A1

公开(公告)日：2018-05-24

申请号：US15574792

申请日：2016-05-20

Applicant: Fisher & Paykel Appliance Limited

Inventor： Mervyn John Davies ,  David James Hammond ,  Zhuang Tian

IPC: B08B7/02 ,  H02P25/032 ,  H02K29/06 ,  H02P6/30 ,  F04D19/00 ,  F04D29/70

CPC classification number: B08B7/02 ,  F04D17/00 ,  F04D17/04 ,  F04D19/005 ,  F04D29/703 ,  H02K29/06 ,  H02P6/30 ,  H02P25/032

Abstract: 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.

公开(公告)号：US09957746B2

公开(公告)日：2018-05-01

申请号：US15109838

申请日：2015-01-26

Applicant: Mitsuba Corporation

Inventor： Akihiro Kaihatsu ,  Masazumi Ishikawa

IPC: 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 classification number: 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

Abstract: 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).

公开(公告)号：US20180019645A1

公开(公告)日：2018-01-18

申请号：US15716617

申请日：2017-09-27

Applicant: Nidec Corporation

Inventor： Kazuya KITAJI ,  Jun NAGASAWA ,  Keizo FURUKAWA

IPC: H02K29/08 ,  H02K1/27 ,  H02K1/30 ,  H02K1/16

CPC classification number: H02K11/215 ,  H02K1/16 ,  H02K1/2733 ,  H02K1/30 ,  H02K29/06 ,  H02K29/08

Abstract: 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.

公开(公告)号：US20170324304A1

公开(公告)日：2017-11-09

申请号：US15523269

申请日：2015-10-29

Applicant: DENSO CORPORATION ,  SOKEN, INC. ,  National University Corporation Shizuoka University

Inventor： Koji ITO ,  Masanori YASUDA ,  Shinji MAKITA ,  Jun YAMAOKA ,  Masao TOKUNAGA ,  Etsuro YOSHINO ,  Junichi ASAMA

IPC: H02K7/09 ,  H02K11/21 ,  F16C32/04 ,  H02K21/22 ,  H02K5/16 ,  H02K29/06

CPC classification number: 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

Abstract: 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.

公开(公告)号：US09634551B2

公开(公告)日：2017-04-25

申请号：US14698835

申请日：2015-04-28

Applicant: Clifford R. Rabal

Inventor： Clifford R. Rabal

IPC: H02P25/00 ,  H02K47/14 ,  H02K29/06 ,  H02K21/24 ,  H02J7/00

CPC classification number: H02P11/04 ,  H02J7/0068 ,  H02J7/35 ,  H02K7/025 ,  H02K21/24 ,  H02K29/06 ,  H02K47/14 ,  H02K53/00 ,  H02P6/16 ,  Y10S74/09

Abstract: 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.

公开(公告)号：US20170085203A1

公开(公告)日：2017-03-23

申请号：US15310593

申请日：2015-06-02

Applicant: MMT SA

Inventor： Gaël ANDRIEUX ,  Antoine FOUCAUT

IPC: H02P25/064 ,  H02P23/30 ,  H02P23/24 ,  H02P23/00

CPC classification number: H02P25/064 ,  H02K7/06 ,  H02K11/215 ,  H02K29/06 ,  H02P6/08 ,  H02P6/16 ,  H02P23/0004 ,  H02P23/0077 ,  H02P23/24 ,  H02P23/30

Abstract: 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.

公开(公告)号：US09500724B2

公开(公告)日：2016-11-22

申请号：US14078744

申请日：2013-11-13

Applicant: PORTESCAP SA

Inventor： Julian Berney ,  Julien Baudey

IPC: G01R33/07 ,  H02K29/08 ,  H02K29/06 ,  G01D11/30 ,  G01B7/30 ,  G01D5/14

CPC classification number: G01R33/07 ,  G01B7/30 ,  G01D5/145 ,  G01D11/30 ,  H02K11/215 ,  H02K29/06 ,  H02K29/08

Abstract: 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.

公开(公告)号：US09419547B2

公开(公告)日：2016-08-16

申请号：US13914831

申请日：2013-06-11

Applicant: Tai-Her Yang

Inventor： Tai-Her Yang

IPC: H02K21/04 ,  H02P6/00 ,  H02K29/06 ,  H02K23/66

CPC classification number: H02P6/28 ,  H02K21/042 ,  H02K23/66 ,  H02K29/06

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20160226339A1

公开(公告)日：2016-08-04

申请号：US15002652

申请日：2016-01-21

Applicant: MAKITA CORPORATION

Inventor： Akira NIWA ,  Kei KOUDA

IPC: H02K7/14 ,  H02K3/24 ,  H02K1/27 ,  H02K11/21 ,  H02K3/28

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。