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1. 发明授权

US11742737B2 Low noise gear motor with dissymetric electric motor 有权
公开(公告)号：US11742737B2
公开(公告)日：2023-08-29
申请号：US17595489
申请日：2020-05-15
申请人： Moving Magnet Technologies
发明人： Damien Laforge , Lionel Billet
IPC分类号： H02K37/16 , H02K37/24 , H02K7/116
CPC分类号： H02K37/24 , H02K7/1166 , H02K37/16
摘要： A gear motor comprising a reduction gear train and a three-phase electric motor comprising a stator formed of a stack of sheets and 3*k electric coils and a rotor having 5 k*N pairs of magnetized poles, with k=1 or 2, the stator having two separate angular sectors alpha 1 and alpha 2, which are centered on the center of rotation of the motor and comprise an alternation of notches and 3*k*N teeth, which are regularly spaced and converge toward the center of rotation and define a cavity in which the rotor is arranged, the gear motor being characterized in that N=4 and in that alpha 1 is less than or equal to 180° and comprises all of the coils of the motor.

2. 发明申请

US20220373976A1 HOROLOGICAL MOVEMENT COMPRISING A GENERATOR 有权
公开(公告)号：US20220373976A1
公开(公告)日：2022-11-24
申请号：US17655110
申请日：2022-03-16
申请人： ETA SA Manufacture Horlogère Suisse
发明人： Romain BESUCHET , Stéphane BALEON , Pascal LAGORGETTE
IPC分类号： G04C10/00 , G04C3/14 , G04B19/02 , H02K7/116 , H02K7/18 , H02K37/14 , H02K37/24
摘要： An electromechanical horological movement including an analogue time display device and provided with at least one electromechanical motor, to drive at least one indicator of the analogue time display, and a generator including a rotor and associated with an oscillating mass coaxial with the time display device, this horological movement including a first wheel provided with a shaft, coaxial with said indicator, which is guided in rotation, in a main embodiment, by a fixed cylindrical tube around which is rotatably mounted at least one cannon of the time display device. The first wheel is in meshing relation with the rotor of the generator and is fixedly connected to the oscillating mass, on the side opposite the analogue time display, so that this oscillating mass can rotate the rotor of the generator via the first wheel.

3. 发明授权

US11283339B2 Stepping motor 有权
公开(公告)号：US11283339B2
公开(公告)日：2022-03-22
申请号：US16986607
申请日：2020-08-06
申请人： MINEBEA MITSUMI Inc.
发明人： Nobuyuki Sueyoshi , Mitsuo Kinoshita
IPC分类号： H02K37/14 , H02K37/24 , H02K7/08
摘要： A stepping motor has a relationship between an outer diameter of a rotor and an outer diameter of a bearing made of magnetic material that can be adjusted appropriately so as to impart magnetic attractive force to the bearing, the stepping motor including a rotor 400 made of a permanent magnet, a stator including multiple pole teeth 223, 243, 323 and 343 extending in an axial direction of the rotor 400 arranged at an outer circumferential side of the rotor 400, a bearing 250 rotatably supporting one end portion in the axial direction of the rotor 400, and a bearing 260 rotatably supporting the other end portion in the axial direction of the rotor 400. Magnetic permeability of the bearing 260 is greater than that of the bearing 250, the rotor 400 includes multiple magnetic poles on an outer circumferential surface along a circumferential direction of the rotor 400, and an outer diameter DR of the rotor 400, an outer diameter DB of a portion of the bearing 260 which is facing the rotor 400, and a pitch P of the multiple magnetic poles of the rotor 400 are set to satisfy the following relationship of formula 1 (DR−P)=

4. 发明申请

US20210372244A1 DOWNHOLE PUMP WITH SWITCHED RELUCTANCE MOTOR 有权
公开(公告)号：US20210372244A1
公开(公告)日：2021-12-02
申请号：US16889375
申请日：2020-06-01
申请人： Saudi Arabian Oil Company
发明人： Val Riachentsev , Jinjiang Xiao
IPC分类号： E21B43/12 , F04D1/06 , F04D7/02 , F04D13/08 , E21B34/06 , H02K7/14 , H02K37/04 , H02K37/24
摘要： A motorized pump system includes a switched reluctance motor with a motor rotor and a motor stator, and a pump surrounding the switched reluctance motor. The motor rotor is positioned radially inward or outward of the motor stator, and the pump includes a pump rotor integrated with the motor rotor. The pump rotor includes at least one impeller connected to the motor rotor.

5. 发明授权

US10742146B2 Motor control circuit, motor control device, actuator and control method for stepping motor 有权
公开(公告)号：US10742146B2
公开(公告)日：2020-08-11
申请号：US16261699
申请日：2019-01-30
申请人： MINEBEA MITSUMI Inc.
发明人： Kazuo Takada , Hidetoshi Hijikata
IPC分类号： H02P8/12 , H02P8/14 , H02P29/60 , H02K37/12 , H02K37/24 , H02P8/34
摘要： A motor control circuit includes an input voltage measuring unit, a temperature measuring unit, a current setting unit, and a current control unit. The input voltage measuring unit measures an input voltage input to the motor control device. The temperature measuring unit measures the temperature. The current setting unit sets a target value of drive current to flow through a coil of a stepping motor based on a measurement result of the input voltage measuring unit and a measurement result of the temperature measuring unit and based on a set value of drive current preset for each of plural partial areas, which are sectioned in a matrix form with a threshold value related to the input voltage and a threshold value related to the temperature. The current control unit controls the drive current according to the target value of the drive current set in the current setting unit.

6. 发明申请

US20200014264A1 ROTOR ASSEMBLY FOR ELECTRIC MOTOR 审中-公开
公开(公告)号：US20200014264A1
公开(公告)日：2020-01-09
申请号：US16504116
申请日：2019-07-05
申请人： Johnson Electric International AG
发明人： Yvan Bourqui , Daniel Soncini , Bruno Neuhaus
IPC分类号： H02K1/30 , H02K1/02 , H02K1/24 , H02K7/00 , H02K7/116 , H02K37/04 , H02K37/24 , H02K15/02 , H02K15/12 , F16H57/00 , F16H55/17 , B29C45/14
摘要： A rotor assembly is provided for an electric motor. The rotor assembly includes: a cylindrical magnet member having magnetization in both axial and radial directions, the magnet member being formed from a moldable magnetic material; and an output shaft receivable within the magnet member. An inner surface of the magnet member and an outer surface of the output shaft have complementarily-engagable interface elements thereon to prevent or limit dislocation of the magnet member and output shaft, and at least one of the interface elements is formed by overmolding of the magnet member and output shaft with the other of magnet member and output shaft.

7. 发明申请

US20190157999A1 MOTOR CONTROL CIRCUIT, MOTOR CONTROL DEVICE, ACTUATOR AND CONTROL METHOD FOR STEPPING MOTOR 审中-公开
公开(公告)号：US20190157999A1
公开(公告)日：2019-05-23
申请号：US16261719
申请日：2019-01-30
申请人： MINEBEA MITSUMI Inc.
发明人： Kazuo TAKADA , Takayuki MATSUI
IPC分类号： H02P8/14 , H02P8/34 , H02P29/60 , H02K37/24 , H02K37/12
摘要： The motor control circuit (12) includes an input voltage measuring unit (125), a temperature measuring unit (128), a speed setting unit, and a speed control unit. The input voltage measuring unit (125) measures an input voltage input to the motor control device (10). The temperature measuring unit (128) measures the temperature. The speed setting unit sets a target value of driving speed of a stepping motor (20) based on a measurement result of the input voltage measuring unit (125) and a measurement result of the temperature measuring unit (128) and based on a set value of driving speed preset for each of the plural partial areas which are sectioned in a matrix form with a threshold value related to the input voltage and a threshold value related to the temperature. The speed control unit controls the driving speed according to the target value of the driving speed set in the speed setting unit.

8. 发明申请

US20190157998A1 MOTOR CONTROL CIRCUIT, MOTOR CONTROL DEVICE, ACTUATOR AND CONTROL METHOD FOR STEPPING MOTOR 审中-公开
公开(公告)号：US20190157998A1
公开(公告)日：2019-05-23
申请号：US16261699
申请日：2019-01-30
申请人： MINEBEA MITSUMI Inc.
发明人： Kazuo TAKADA , Hidetoshi HIJIKATA
IPC分类号： H02P8/12 , H02P8/34 , H02P29/60 , H02K37/24 , H02K37/12
摘要： The motor control circuit (12) includes an input voltage measuring unit (125), a temperature measuring unit (128), a current setting unit, and a current control unit. The input voltage measuring unit (125) measures an input voltage input to the motor control device (10). The temperature measuring unit (128) measures the temperature. The current setting unit sets a target value of drive current to flow through a coil of a stepping motor (20) based on a measurement result of the input voltage measuring unit (125) and a measurement result of the temperature measuring unit (128) and based on a set value of drive current preset for each of the plural partial areas, which are sectioned in a matrix form with a threshold value related to the input voltage and a threshold value related to the temperature. The current control unit controls the drive current according to the target value of the drive current set in the current setting unit.

9. 发明申请

US20170070116A1 STEPPING MOTOR 审中-公开
标题翻译：步进电机
公开(公告)号：US20170070116A1
公开(公告)日：2017-03-09
申请号：US15256598
申请日：2016-09-04
申请人： Samsung Electronics Co., Ltd
发明人： Jae Kyu Shim , Bon Min Koo , Woo Jong Cho
IPC分类号： H02K3/28 , H02K37/24
CPC分类号： H02K37/14 , H02K7/06 , H02K16/00
摘要： A stepping motor according to various embodiments includes a rotatable shaft, and two or more engine units that are connected to the shaft, and each of the engine units has a rotor and a stator arranged at a circumference of the rotor.
摘要翻译：根据各种实施例的步进电机包括可旋转轴和连接到轴的两个或更多个发动机单元，并且每个发动机单元具有设置在转子的圆周处的转子和定子。

10. 发明申请

US20150303783A1 Stepping Motor 有权
标题翻译：步进电机
公开(公告)号：US20150303783A1
公开(公告)日：2015-10-22
申请号：US14683758
申请日：2015-04-10
申请人： LG INNOTEK CO., LTD.
发明人： Su Hyoung Lee
IPC分类号： H02K37/24 , B60Q1/076 , H02K5/10
CPC分类号： B60Q1/076 , B60Q2200/30 , H02K5/00 , H02K5/10 , H02K5/22 , H02K7/06 , H02K11/33 , H02K21/145 , H02K37/00 , H02K37/24
摘要： A stepping motors includes a bracket including a first protruding line and a second protruding line formed on both sides, a stator and a rotor disposed on the bracket, a lead screw coupled with the rotor, and a moving member which moves back and forth according to a rotation of the lead screw, in which the moving member includes a first guide groove which slides on the first protruding line and a second guide groove which slides on the second protruding line, and the first guide groove and the second guide groove include first sections which have widths corresponding to the first protruding line and the second protruding line, respectively, and second sections which have greater widths than the first sections.
摘要翻译：步进电动机包括：支架，其包括形成在两侧的第一突出线和第二突出线;定子和设置在支架上的转子;与转子耦合的导螺杆;以及移动构件，其根据所述导螺杆的旋转，其中所述移动构件包括在所述第一突出线上滑动的第一引导槽和在所述第二突出线上滑动的第二引导槽，并且所述第一引导槽和所述第二引导槽包括第一部分其具有分别对应于第一突出线和第二突出线的宽度，以及具有比第一部分宽的宽度的第二部分。

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