公开(公告)号：US20240364197A1

公开(公告)日：2024-10-31

申请号：US18682507

申请日：2022-07-19

Applicant: A+K ANTRIEBE GMBH

Inventor： Klaus Kurz-Lin ,  Andre' Ramme ,  Mathias Kuhner

IPC: H02K21/22 ,  H02K1/14 ,  H02K1/2791 ,  H02K11/33

CPC classification number: H02K21/22 ,  H02K1/146 ,  H02K1/2791 ,  H02K11/33 ,  H02K2201/03 ,  H02K2213/06 ,  H02K2213/12

Abstract: The invention relates to a shaft generator (01) for generating power during a generating process and/or for providing power during a motor operation, the shaft generator (01) comprising a stator (02) and a rotor (03), the rotor (03) being configured to be disposed around a shaft (04) of a drive unit, in particular bearing-free, and the stator (02) being configured to be disposed around the rotor (03). The shaft generator (01) comprises at least two frequency converters (08, 09), the stator (02) is separable into at least two stator segments (05, 06) and each of the at least two stator segments (05, 06) is assigned one of the at least two frequency converters (08, 09).

公开(公告)号：US12132367B2

公开(公告)日：2024-10-29

申请号：US18295282

申请日：2023-04-04

Applicant: Neapco Intellectual Property Holdings, LLC

Inventor： Donald Remboski ,  Jacqueline Dedo ,  Mark Versteyhe

IPC: H02K1/16 ,  H02K3/16 ,  H02K3/28 ,  H02K5/128 ,  H02K5/167

CPC classification number: H02K3/16 ,  H02K1/16 ,  H02K3/28 ,  H02K5/128 ,  H02K5/167 ,  H02K2201/03 ,  H02K2203/09

Abstract: An electric motor comprises a stator presenting a first surface. A rotor is rotatable relative to the stator. The rotor presents a rotor raceway disposed in spaced relationship with the first surface of the stator. The first surface of the stator defines a plurality of slots in spaced relationship with one another to define a plurality of spaced teeth between the slots. At least one electrical conductor is disposed in each of the slots and configured to selectively create a moving magnetic field for acting upon the rotor for providing rotational movement of the rotor. A portion of the at least one electrical conductor extends substantially into radial alignment with, or past the first surface of the stator to at least partially define a stator raceway of the stator for engaging the rotor raceway of the rotor during relative radial movement between the rotor and the stator.

公开(公告)号：US12057746B2

公开(公告)日：2024-08-06

申请号：US17301591

申请日：2021-04-08

Applicant: Board of Regents, The University of Texas System

Inventor： Babak Fahimi ,  Amir Parsapour ,  Mehdi Moallem

IPC: H02K16/04 ,  H02K1/27

CPC classification number: H02K16/04 ,  H02K1/27 ,  H02K2201/03 ,  H02K2213/03

Abstract: A novel high torque density double stator permanent magnet electric machine is provided. An outer stator is provided which has complex teeth and optionally can have windings every tooth or every other tooth. A rotor is provided having a plurality of magnet receivers, each with a complex topology. Magnets are provided in the rotor which are tangentially magnetized with alternating polarities and a complex topology to increase torque density. An inner stator is provided having a plurality of teeth with complex topologies. Windings are provided around every tooth or every other tooth, alternatively. Air-gaps are provided between the outer stator and the rotor and between the rotor and inner stator. The air-gap between the inner stator and the rotor is smaller than the air-gap between the outer stator and the rotor. A lower current density in certain windings improves thermal response without comprising average torque.

公开(公告)号：US20240162796A1

公开(公告)日：2024-05-16

申请号：US17988102

申请日：2022-11-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： William R. Jensen ,  Mazharul Chowdhury ,  Jay Jihyun Kim

IPC: H02K21/16 ,  H02K1/16 ,  H02K1/276 ,  H02K3/12

CPC classification number: H02K21/16 ,  H02K1/16 ,  H02K1/276 ,  H02K3/12 ,  H02K2201/03

Abstract: Aspects of a synchronous electric motor, including a synchronous interior permanent magnet or a synchronous reluctance motor, are disclosed. The outer edges of pockets and magnet pockets, including flux barriers, selectively include one or more notches at the front of the pockets. The use of these notches may redirect flow of the magnetic flux such that overall torque ripple may be reduced without significantly adversely affecting the average torque output of the motor. In some embodiments, various characteristics of the notches may be changed to achieve optimal performance including number, geometry, and location of the notches on select outer edges of the pockets. Another characteristic includes symmetry of the notches or asymmetry, whether in the radial and longitudinal directions of the rotor.

公开(公告)号：US20240162790A1

公开(公告)日：2024-05-16

申请号：US18282240

申请日：2021-03-24

Applicant: Mitsubishi Electric Corporation ,  National University Corporation YOKOHAMA National University

Inventor： Kodai OKAZAKI ,  Kan AKATSU

IPC: H02K11/33 ,  H02K3/28 ,  H02K11/26

CPC classification number: H02K11/33 ,  H02K3/28 ,  H02K11/26 ,  H02K2201/03 ,  H02K2213/03

Abstract: Provided is a magnetic gap length estimating device in which neither a current sensor nor a current load is necessary, and a voltage at a connection-wire neutral point does not need to be measured. A magnetic gap length estimating device for estimating a magnetic gap length in an M-group N-phase rotating electric machine to be driven by an inverter includes: a voltage acquiring unit which acquires a no-load-induced line-to-line voltage induced under no load; and a magnetic gap estimating unit. The magnetic gap estimating unit includes: a spectrum analysis unit which converts the no-load-induced line-to-line voltage acquired by the voltage acquiring unit into amplitudes and phases for respective frequencies; a frequency analysis unit which extracts amplitudes and phases of a fundamental wave component and an Nth-order harmonic component of the no-load-induced line-to-line voltage; and an estimating-and-calculating unit which estimates the magnetic gap length.

公开(公告)号：US20240146135A1

公开(公告)日：2024-05-02

申请号：US18404150

申请日：2024-01-04

Applicant: INFINITUM ELECTRIC INC.

Inventor： Bernhard L. Schuler ,  Rich Lee ,  Jorgen Rasmussen

IPC: H02K3/26 ,  H02K1/12 ,  H02K1/18 ,  H02K1/276 ,  H02K1/2795 ,  H02K1/32 ,  H02K3/12 ,  H02K3/28 ,  H02K3/47 ,  H02K3/52 ,  H02K9/12 ,  H02K15/03 ,  H02K16/00 ,  H02K21/24 ,  H02K35/02 ,  H02P31/00

CPC classification number: H02K3/26 ,  H02K1/12 ,  H02K1/182 ,  H02K1/2773 ,  H02K1/2795 ,  H02K1/32 ,  H02K3/12 ,  H02K3/28 ,  H02K3/47 ,  H02K3/521 ,  H02K9/12 ,  H02K15/03 ,  H02K16/00 ,  H02K21/24 ,  H02K35/02 ,  H02P31/00 ,  H02K2201/03 ,  H02K2203/03 ,  H02K2211/03 ,  Y02B10/30 ,  Y02E10/72

Abstract: An axial field rotary energy device can include a rotor comprising an axis of rotation and a magnet. In addition, a stator can be coaxial with the rotor. The stator can include a plurality of stator segments that are coupled together about the axis. Each stator segment can include a printed circuit board (PCB) having a PCB layer comprising a coil. Each stator segment also can include only one electrical phase. The stator itself can include one or more electrical phases.

公开(公告)号：US11905878B2

公开(公告)日：2024-02-20

申请号：US17674719

申请日：2022-02-17

Applicant: Kohler Co.

Inventor： Isaac S. Frampton ,  Adam Larson ,  Frank C. Formas

IPC: H02K19/38 ,  F02B63/04 ,  H02K9/19 ,  H02P9/30 ,  H02K7/18 ,  H02K19/28 ,  H02K1/18 ,  H02K9/00 ,  H02K9/22

CPC classification number: F02B63/042 ,  H02K7/1815 ,  H02K9/19 ,  H02K19/28 ,  H02K19/38 ,  H02P9/302 ,  H02K1/182 ,  H02K9/00 ,  H02K9/227 ,  H02K2201/03

Abstract: An alternator includes an exciter field device generating an exciter magnetic field in a first air gap, an exciter armature device configured to rotate with respect to the exciter magnetic field and impart a first voltage in a first set of coils at the first air gap, a main stator device including a second set of coils, and a rotor field device configured to be energized by the first current in the first set of coils and generate a main magnetic field that imparts a second voltage on the main stator device at a second air gap. The main stator device and the exciter field device lie in on a common plane normal to an axis of rotation, and the exciter armature device is inwardly spaced from the exciter field device, main stator device, and the rotor field device.

公开(公告)号：US20240055967A1

公开(公告)日：2024-02-15

申请号：US18267409

申请日：2021-12-16

Applicant: Swisspod Technologies Sa

Inventor： Jaime Renedo Anglada ,  Dario Bueno-Baques

IPC: H02K41/02 ,  H02K1/02

CPC classification number: H02K41/02 ,  H02K1/02 ,  H02K2201/03

Abstract: A polyphase linear induction motor including a movable primary member (100), the primary member (100) including a magnetic material (110), a polyphase winding (120) arranged around the magnetic material, and a stationary longitudinally-extending secondary member (150) separated from the primary member (100) by a gap, the secondary member (150) including an electrically-conductive reaction plate (200) and a backing magnetic material (300), wherein the secondary member includes a middle section (205) and two outer sections (210.1, 210.2), the middle section (205) and the two outer sections (210.1, 210.2) arranged next to each other in parallel to an axis of longitudinal extension of the reaction plate (200).

公开(公告)号：US20240030766A1

公开(公告)日：2024-01-25

申请号：US17871286

申请日：2022-07-22

Applicant: Raytheon Technologies Corporation

Inventor： Abbas A. Alahyari ,  Parag M. Kshirsagar ,  Beata I. Wawrzyniak

IPC: H02K1/32 ,  H02K9/197 ,  H02K9/22

CPC classification number: H02K1/32 ,  H02K9/197 ,  H02K9/225 ,  H02K2201/03

Abstract: An electric machine includes a rotor located at and rotatable about a central axis and a stator positioned proximate to the rotor and defining a radial machine gap between the rotor and the stator. A cold plate is positioned proximate to the rotor. The cold plate is rotationally stationary relative to the central axis and is spaced apart from the rotor to define a cold plate gap between the cold plate and the rotor. The cold plate includes one or more coolant pathways therein such that thermal energy from the rotor is transferred to a flow of coolant circulated through the one or more coolant pathways.

公开(公告)号：US20240030755A1

公开(公告)日：2024-01-25

申请号：US18358384

申请日：2023-07-25

Applicant: ZHEJIANG UNIVERSITY OF TECHNOLOGY

Inventor： Jian RUAN ,  Jiahui HUANG ,  Zhankai SONG ,  Bin MENG ,  Liangtao HAN

IPC: H02K1/14 ,  H02K1/18 ,  H02K1/2791

CPC classification number: H02K1/145 ,  H02K1/187 ,  H02K1/2791 ,  H02K2201/03

Abstract: A claw-pole magnetic levitation torque motor includes a stator component and a rotor component. The stator component includes an end cover, upper and lower claw poles, coil skeletons, coils, and a flux guide sleeve. The cavity formed between the upper and lower claw poles accommodates the coil skeletons, on which coils are wound. The rotor component includes a ring-shaped shell, a permanent magnet, a base, and a shaft. The shell is fitted outside the claw poles, the bottom of the shell includes a base having a base platform shoulder, in the center of which a blind hole is opened. The lower end of the shaft is fixedly arranged in the blind hole, and the upper end of the shaft passes through the flux guide sleeve. The stator component is assembled with the rotor component through a gap-fitting between the magnetic guide sleeve and the shaft of the rotor component.