公开(公告)号：US11799343B2

公开(公告)日：2023-10-24

申请号：US17144304

申请日：2021-01-08

申请人： BETA AIR, LLC

发明人： Chenjie Lin

IPC分类号： H02K3/28 ,  H02K3/50 ,  H02K1/12

CPC分类号： H02K3/28 ,  H02K1/12 ,  H02K3/50

摘要： A fractional concentrated stator for use in electric aircraft motor includes an inner and outer cylindrical surface about an axis of rotation comprising different radii. The stator includes a plurality of teeth disposed on the inner cylindrical surface and extending radially inward, the cross-sectional area of each tooth increasing as it extends from the inner cylindrical surface. The stator includes a plurality of modular winding sets, each comprising at least a segment of electrically conductive material wound upon at least a tooth, an inverter providing electrical power to a configurable portion of the stator, and rotor shaft at the axis of rotation disposed coaxially within the stator. The rotor shaft further includes a cylindrical surface facing the inner cylindrical surface of the stator, a plurality of magnets coupled to rotor shaft and coupled to a propulsor and an air gap between the rotor and stator.

公开(公告)号：US11781383B2

公开(公告)日：2023-10-10

申请号：US16939882

申请日：2020-07-27

申请人： Cameron International Corporation

发明人： Michael Raymond Netecke

IPC分类号： E21B19/00 ,  B66D1/36 ,  E21B19/02 ,  H02K1/12 ,  H02K41/03

CPC分类号： E21B19/008 ,  B66D1/36 ,  E21B19/02 ,  H02K41/031 ,  H02K1/12

摘要： Systems and methods for hoisting a top drive of a drilling rig. An example system includes a hoisting system having a linear electric motor operable to raise and lower the top drive. An example method includes commencing operation of a processing device to cause operation of the linear electric motor to raise and lower the top drive. The linear electric motor may have a stator connected to and extending vertically along a mast of the drilling rig, and a rotor connected to the top drive and operable to move relative to the stator. The rotor may be connected to the top drive via one or more flexible lines.

公开(公告)号：US20230318401A1

公开(公告)日：2023-10-05

申请号：US17708881

申请日：2022-03-30

申请人： Illinois Tool Works Inc.

发明人： Nathan Joe Jochman

IPC分类号： H02K7/18 ,  H02K1/12 ,  H02K5/22 ,  F02B63/04

CPC分类号： H02K7/1815 ,  H02K1/12 ,  H02K5/22 ,  F02B63/044 ,  F02B2063/045

摘要： An example engine-driven generators includes: a stator assembly having first mounting holes; a first generator housing configured to couple the stator assembly to an engine, and having second mounting holes; first stator alignment hardware configured to align the first mounting holes of the stator assembly with corresponding ones of the second mounting holes of the first generator housing; stator securing hardware configured to secure the stator assembly in cooperation with the first stator alignment hardware; first locating faces configured to mate with mating faces of corresponding ones of the second mounting holes to locate the first mounting holes with the second mounting holes; and first housing securing hardware configured to secure the first generator housing to the stator assembly.

公开(公告)号：US11742706B2

公开(公告)日：2023-08-29

申请号：US17070138

申请日：2020-10-14

申请人： Fanuc Corporation

发明人： Masatomo Shirouzu

IPC分类号： H01F27/24 ,  H02K1/12 ,  H02K1/04 ,  H01F37/00 ,  H01F27/32 ,  H01F3/14

CPC分类号： H02K1/12 ,  H01F3/14 ,  H01F27/324 ,  H01F37/00 ,  H01F37/005 ,  H02K1/04

摘要： A single-phase reactor includes an outer peripheral iron core, at least four iron cores, which are in contact with or coupled to the inner surface of the outer peripheral iron core, and coils which are wound around at least two iron cores of the at least four iron cores. Gaps, which can be magnetically coupled, are each formed between two adjacent ones of the at least four iron cores, or are formed between the at least four iron cores and a central iron core positioned at the center of the outer peripheral iron core.

公开(公告)号：US20230238869A1

公开(公告)日：2023-07-27

申请号：US18057945

申请日：2022-11-22

申请人： FUJI ELECTRIC CO., LTD.

发明人： Terukazu AKIYAMA ,  Satoshi IMAMORI

IPC分类号： H02K41/03 ,  H02K1/12

CPC分类号： H02K41/033 ,  H02K1/12

摘要： A magnetic field apparatus includes a main magnet that generates a magnetic field with respect to an armature, a member made of a soft magnetic material and disposed adjacent to an end surface of the main magnet on a side opposing the armature, an auxiliary magnet that increases a magnetic flux of a magnetic pole of the main magnet on the side opposing the armature and disposed adjacent to the main magnet and the member in a relative moving direction between the magnetic field apparatus and the armature, and a restricting part that restricts the magnetic flux of the main magnet passing through an end surface of the member along a third direction that is perpendicular to both a first direction in which the main magnet and the armature oppose each other, and a second direction corresponding to the relative moving direction between the magnetic field apparatus and the armature.

公开(公告)号：US11710990B2

公开(公告)日：2023-07-25

申请号：US17413121

申请日：2019-12-17

申请人： NIPPON STEEL CORPORATION

发明人： Yasuo Ohsugi ,  Ryu Hirayama ,  Kazutoshi Takeda

IPC分类号： H02K1/12

CPC分类号： H02K1/12

摘要： A laminated core includes a plurality of electrical steel sheets stacked in a thickness direction, the electrical steel sheet includes an annular core back part and a plurality of tooth parts that protrude from the core back part in a radial direction and are disposed at intervals in a circumferential direction of the core back part, a fastening part is provided in a portion of the core back part corresponding to the tooth part, and an adhesion part is provided in the tooth part.

公开(公告)号：US20230208219A1

公开(公告)日：2023-06-29

申请号：US18172550

申请日：2023-02-22

申请人： Alps Alpine Co, Ltd.

发明人： Munemitsu ABE ,  Akio HANADA ,  Shokan YAMASHITA ,  Tatsuya OBA

IPC分类号： H02K1/22 ,  H02K1/12 ,  H02K15/02

CPC分类号： H02K1/22 ,  H02K1/12 ,  H02K15/02

摘要： In a magnetic core including a core assembly formed of multiple arranged thin strip blocks, each of the thin strip blocks has a structure that multiple nanocrystalline thin strips having a bcc-Fe phase as a main phase are laminated one above another, and an iron loss in the nanocrystalline thin strip positioned at a center of the thin strip block in a thickness direction thereof is lower than an iron loss in the nanocrystalline thin strip positioned in a surface layer of the thin strip block. The nanocrystalline thin strip may be a heat-treated product of an amorphous thin strip made of an amorphous alloy material, and the thin strip block may include a fixedly joined portion in which the nanocrystalline thin strips adjacent to each other in a lamination direction are fixedly joined together.

公开(公告)号：US20230198362A1

公开(公告)日：2023-06-22

申请号：US18068521

申请日：2022-12-20

申请人： NIDEC CORPORATION

发明人： Atsunori HIRATA ,  Tomohiro KOBAYASHI

IPC分类号： H02K33/02 ,  H02K1/12 ,  H02K1/34

CPC分类号： H02K33/02 ,  H02K1/12 ,  H02K1/34

摘要： A vibration motor includes a stator, a vibrator capable of vibrating in an axial direction, and an elastic member that connects the vibrator and the stator and is arranged on the axially upper side of the vibrator. The vibrator includes a mass body and a magnet member fixed to the mass body on the axially lower side of the mass body. The mass body includes a base portion extending in a radial direction and a column portion extending axially downward from the base portion. The magnet member has a hole portion recessed axially downward from an upper surface or penetrating through the magnet member. An outer edge of the hole portion is arranged radially outward of the column portion. The base portion faces an upper end of the coil in the axial direction.

公开(公告)号：US20230187999A1

公开(公告)日：2023-06-15

申请号：US18095734

申请日：2023-01-11

申请人： ANHUI WELLING AUTO PARTS CO., LTD. ,  GUANGDONG WELLING AUTO PARTS CO., LTD.

发明人： Fei WANG ,  Jintao CHEN ,  Xiaomin PU ,  Yiming HU

IPC分类号： H02K5/20 ,  H02K9/19 ,  H02K1/12 ,  H02K11/30

CPC分类号： H02K5/203 ,  H02K9/19 ,  H02K1/12 ,  H02K11/30

摘要： A drive motor, a drive system and a vehicle are provided. The drive motor has a motor housing and a stator core provided in the motor housing. The motor housing has a fluid inlet and a fluid outlet. A cut edge is disposed on an outer peripheral wall of the stator core. The cut edge extends in an axial direction of the stator core. A cooling fluid flow path is formed by a space between the cut edge and an inner peripheral wall of the motor housing. The fluid inlet and the fluid outlet are in communication with the cooling fluid flow path.

公开(公告)号：US11670984B2

公开(公告)日：2023-06-06

申请号：US16672148

申请日：2019-11-01

申请人： TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.

发明人： Geoffrey D. Gaither ,  Samuel D. Koch

IPC分类号： H02K7/06 ,  H02K7/00 ,  H02K1/12 ,  B60B19/00 ,  H02K7/116 ,  B60K7/00 ,  H02K7/14 ,  H02K21/12 ,  B62D5/04

CPC分类号： H02K7/006 ,  B60B19/006 ,  B60K7/0007 ,  B62D5/04 ,  H02K1/12 ,  H02K7/116 ,  H02K7/14 ,  H02K21/12 ,  Y02T10/64

摘要： Systems and methods are provided for a drive mechanism of a vehicle, that may include: a rotor comprising a ring of a plurality of magnets located about a circumference of a rim of a wheel of the vehicle, the plurality of magnets generating a first magnetic field; a stator comprising a plurality of coils, the stator mounted to a body of the vehicle, and located outside a wheel of the vehicle and proximate to an outer edge of the ring of the plurality of magnets; and wherein the plurality of coils of the stator, when energized by an AC waveform, generate a second magnetic field stator, and further wherein an interaction between the first and second magnetic fields creates an attractive force causing tractive motion of the wheel about an axis of rotation of the wheel.