公开(公告)号：US20240270394A1

公开(公告)日：2024-08-15

申请号：US18620917

申请日：2024-03-28

申请人： Archer Aviation Inc.

发明人： Scott GRAVES ,  Robert Wayne MOORE

IPC分类号： B64D27/24 ,  B60L15/06 ,  B60L15/38 ,  B64C27/54 ,  B64C29/00 ,  B64D33/08 ,  B64D35/02 ,  F16B2/06 ,  F16H57/08 ,  H02K1/27 ,  H02K1/32 ,  H02K5/124 ,  H02K5/20 ,  H02K7/00 ,  H02K7/08 ,  H02K7/116 ,  H02K9/19 ,  H02K11/33 ,  H02K15/03 ,  H02M7/5395 ,  H02P21/00 ,  H02P25/16 ,  H02P27/06 ,  H02P27/08

CPC分类号： B64D27/24 ,  B60L15/06 ,  B60L15/38 ,  B64C27/54 ,  B64C29/0008 ,  B64C29/0033 ,  B64D33/08 ,  B64D35/02 ,  F16B2/06 ,  F16H57/08 ,  H02K1/27 ,  H02K1/32 ,  H02K5/124 ,  H02K5/203 ,  H02K7/08 ,  H02K7/116 ,  H02K9/19 ,  H02K11/33 ,  H02K15/03 ,  H02M7/5395 ,  H02P21/50 ,  H02P25/16 ,  H02P27/06 ,  H02P27/08 ,  B60L2200/10 ,  B60L2210/40 ,  H02K7/006

摘要： An electric propulsion system comprising an electric motor assembly. The electric motor assembly may include a housing having an internal volume, a stator ring disposed about a perimeter of the internal volume, and a rotor positioned within the stator. The electric motor assembly may include a main shaft connected to the rotor via a gear reduction, wherein the main shaft extends through the rotor. The electric motor assembly may include a collar connected to the main shaft, wherein the collar encircles the main shaft, and at least a portion of the collar is configured to direct a fluid away from the main shaft and toward the stator ring.

公开(公告)号：US12062966B2

公开(公告)日：2024-08-13

申请号：US17820828

申请日：2022-08-18

申请人： Hunan University

发明人： Yujia Zhai ,  Chang Niu ,  Chunran Mu ,  Tingkun Weng ,  Jian Gao ,  Shoudao Huang

IPC分类号： H01F6/00 ,  H02K1/27 ,  H02K3/02 ,  H02K7/00 ,  H02K9/19 ,  H02K55/00

CPC分类号： H02K55/00 ,  H02K1/27 ,  H02K3/02 ,  H02K7/003 ,  H02K9/19

摘要： Disclosed is a conduction-cooled magnetic flux pump, comprising a refrigerator, a cooling capacity conducting part, a cooling capacity conducting plate, a high-temperature superconducting coil, a high-temperature superconducting tape, an L-shaped machined part, a dynamic sealing device, a motor, a rotating shaft, a bow-shaped epoxy resin machined part, a permanent magnet rotor disk, and a permanent magnet. The cooling capacity conducting plate is connected to the refrigerator, the high-temperature superconducting coil is installed on the cooling capacity conducting plate, the high-temperature superconducting tape is fixed to the cooling capacity conducting plate by the L-shaped machined part. An output end of the motor is connected to one end of the rotating shaft through the dynamic sealing device, the other end of the rotating shaft is rotationally connected to the bow-shaped epoxy resin machined part. The permanent magnet rotor disk is installed on the rotating shaft and rotates along with the rotating shaft.

公开(公告)号：US12062951B2

公开(公告)日：2024-08-13

申请号：US17781878

申请日：2020-11-30

申请人： LG INNOTEK CO., LTD.

发明人： Ho Chan Son ,  Se Ho Kim

IPC分类号： H02K11/24 ,  B62D6/10 ,  G01L3/10 ,  H02K1/16 ,  H02K1/27

CPC分类号： H02K11/24 ,  B62D6/10 ,  G01L3/10 ,  H02K1/16 ,  H02K1/27 ,  H02K2211/03

摘要： An embodiment may provide a motor comprising: a stator including stator teeth; and a rotor including a magnet, wherein the stator teeth include a first stator tooth and a second stator tooth disposed within the first stator tooth, wherein the first stator tooth includes a plurality of first teeth, the second stator tooth includes a plurality of second teeth, wherein the first teeth radially overlap the second teeth at the center of the stator in a radial direction, the motor further comprising: a sensor and a collector disposed between the first stator tooth and the second stator tooth in the radial direction, and the motor further comprising: a circuit board on which the sensor is disposed; and a housing accommodating the circuit board, wherein the collector includes a first collector and a second collector disposed within the first collector, the sensor is disposed, in the radial direction, between the first collector and the second collector, and the housing includes a first protrusion, wherein the first protrusion comprises: a body disposed, in the radial direction, between the first collector and the second collector; a head disposed at an upper end of the body; and a first groove, wherein the head includes a first surface and a second surface disposed so as to face each other, wherein the first surface is in contact with an upper end of the first collector and an upper end of the second collector, the first groove is disposed so as to be concave on the second surface, and a portion of the first groove is disposed to overlap the first and second collectors in the radial direction.

公开(公告)号：US12057742B2

公开(公告)日：2024-08-06

申请号：US17662245

申请日：2022-05-06

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Kenta Takeshima

IPC分类号： H02K1/28 ,  H02K1/27 ,  H02K1/276 ,  H02K15/03 ,  H02K15/12

CPC分类号： H02K1/28 ,  H02K1/276 ,  H02K15/03 ,  H02K15/12

摘要： A rotor for an electric motor may include a rotor core having a hole; a magnet inserted in the hole; and a sheet disposed between an inner surface of the hole and a side surface of the magnet, wherein the side surface faces the inner surface. The sheet may include a first contact layer contacting the inner surface of the hole; a second contact layer contacting the side surface of the magnet; and a body layer including a porous structure and disposed between the first contact layer and the second contact layer. The body layer may have a higher porosity than at least one of the first contact layer and the second contact layer.

公开(公告)号：US12051943B2

公开(公告)日：2024-07-30

申请号：US18096747

申请日：2023-01-13

申请人： HYUNDAI MOBIS CO., LTD.

发明人： Yeong Woo Seo ,  Hye Seong Yang ,  Yong Ho Kim ,  Ui Il Jeong

IPC分类号： H02K1/276 ,  H02K1/20 ,  H02K1/27 ,  H02K3/34 ,  H02K3/52 ,  H02K9/00

CPC分类号： H02K1/276 ,  H02K1/20 ,  H02K1/27 ,  H02K3/34 ,  H02K3/522 ,  H02K9/00 ,  H02K2203/12

摘要： A motor includes: a stator including assemblies; and a rotor disposed on one side of the stator. Each of the assemblies includes: a bobbin; a core inserted into the bobbin; and a coil surrounding an outside of the bobbin. The bobbin includes: a main through hole into which the core is inserted; and a sub-through hole disposed in either one of a top surface and a bottom surface on one side of the main through hole. An inner space of the bobbin is communication with the outside of the bobbin through the sub-through hole.

公开(公告)号：US20240250569A1

公开(公告)日：2024-07-25

申请号：US18100896

申请日：2023-01-24

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Anthony Michael Coppola ,  Derek Frei Lahr ,  Alireza Fatemi ,  Erik Brandon Golm ,  Alan G. Holmes ,  Michael B. Viola

IPC分类号： H02K1/30 ,  H02K1/04 ,  H02K1/27

CPC分类号： H02K1/30 ,  H02K1/04 ,  H02K1/27 ,  H02K2201/09

摘要： The present disclosure includes a rotor core assembly for an electric motor. The rotor core assembly includes a plurality of laminations secured together. A center bore is defined by the plurality of laminations. A longitudinal axis of the rotor core assembly extends along an axial center of the center bore. A carbon fiber sleeve surrounds the plurality of laminations. Magnet slots are defined by the plurality of laminations. The magnet slots extend parallel to the longitudinal axis. Magnets are seated in the magnet slots. Reinforcing bores are defined by, and extend across, the plurality of laminations. Reinforcing members are seated in the reinforcing bores.

公开(公告)号：US12040659B2

公开(公告)日：2024-07-16

申请号：US17334850

申请日：2021-05-31

申请人： Zhejiang University

发明人： Lijian Wu ,  Youtong Fang ,  Hao Yin ,  Ying Meng ,  Minchen Zhu

IPC分类号： G01R31/34 ,  H02K1/16 ,  H02K1/27 ,  H02K1/278

CPC分类号： H02K1/16 ,  G01R31/343 ,  H02K1/27 ,  H02K1/278

摘要： Method for evaluating electromagnetic performance of a permanent-magnet machine, wherein the method is implemented in a computer processer or in a controller of a permanent-magnet machine, calculating the magnetic field distribution by a sub-domain method; using current density of the equivalent current sheet to represent the boundary condition, iterating by the sub-do-main method and by the magnetic circuit method until a convergent result is obtained, calculating the electro-magnetic performance parameters on basis of the convergent result, so as to evaluate the electromagnetic performance.

公开(公告)号：US12027955B2

公开(公告)日：2024-07-02

申请号：US17420727

申请日：2020-01-09

申请人： Vestas Wind Systems A/S

发明人： Peter Mongeau ,  Lars Langvardt Krogh ,  Henrik Zaar Mannik ,  Jens Bergmann

IPC分类号： H02K1/27 ,  F03D9/25 ,  H02K7/18

CPC分类号： H02K7/1838 ,  F03D9/25 ,  F05B2220/706

摘要： A generator rotor assembly (42) comprises a cylindrical ring structure (46) defining a central hollow portion and arranged to rotate around a rotational axis. The cylindrical ring structure (46) comprises a plurality of permanent magnet packages (48) arranged coaxially around the rotational axis, the permanent magnet packages (48) comprising a plurality of coaxially stacked ring-shaped segmented layers (80), a plurality of tie rod holes (86) and a plurality of tie rods (54). The coaxially stacked ring-shaped segmented layers (80) comprise a plurality of contiguous segment sheets (82) arranged around the rotational axis to form the ring-shaped layer, the stacked layers (80) being staggered such that segment breaks between two contiguous segment sheets (82) in one of the layers are angularly offset with respect to segment breaks between two contiguous segment sheets (82) in an adjacent layer. The tie rod holes (86) extend axially through the layers of the permanent magnet packages (48), wherein the plurality of tie rod holes (86) of adjacent permanent magnet packages (48) are complementary in size and position, such that a plurality of tie rod bores is defined. The tie rods (54) extend through respective ones of the plurality of tie rod bores.

公开(公告)号：US12027921B2

公开(公告)日：2024-07-02

申请号：US16953845

申请日：2020-11-20

申请人： Samsung Electronics Co., Ltd.

发明人： Jungwoo Park ,  Cheo Park ,  Byoungsoo Ko ,  Dongbum Lee ,  Jonghyun Choi

IPC分类号： H02K1/27 ,  H02K1/14 ,  H02K1/18 ,  H02K1/2753 ,  H02K1/2791 ,  H02K5/08 ,  H02K15/02

CPC分类号： H02K1/2791 ,  H02K1/146 ,  H02K1/187 ,  H02K1/2753 ,  H02K5/08 ,  H02K15/02

摘要： A motor having a compact volume by reducing sizes in axial and radial directions includes a stator, and a rotor arranged outside the stator and rotated by electromagnetically interacting with the stator, wherein the rotor includes a ring-shaped back yoke, a plurality of magnets separately arranged inside of the back yoke along a circumferential direction of the back yoke, and a frame arranged to combine the back yoke and the plurality of magnets, and having an open side through which an outer surface of the back yoke is exposed to an outside of the frame.

公开(公告)号：US12027920B2

公开(公告)日：2024-07-02

申请号：US17483406

申请日：2021-09-23

申请人： DAIKIN INDUSTRIES, LTD.

发明人： Yusuke Irino ,  Takaaki Ono ,  Yuji Nakazawa ,  Tatsuya Tonari ,  Hisato Sumitomo ,  Masatsugu Takemoto

IPC分类号： H02K1/27 ,  H02K1/276 ,  H02K21/16

CPC分类号： H02K1/2766 ,  H02K21/16

摘要： A rotor includes a rotor core having a plurality of magnetic poles. At least one magnetic pole includes a first magnetic pole having three or more circumferentially arranged magnet holes, and a plurality of permanent magnets housed corresponding magnet holes. A portion of the rotor core between adjacent magnet holes has a radially extending region. A maximum radial dimension of each magnet hole is greater than a minimum radial dimension of a portion of the rotor core between a magnet hole radially outer surface and a rotor core outer peripheral surface. The first magnetic pole has a smaller amount of harmonic components in a radial flux density distribution on the rotor core outer peripheral surface, compared to a magnetic pole having a plurality of magnet holes arranged at equal circumferential intervals and a plurality of permanent magnets having substantially the same magnetic flux and number.