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公开(公告)号：US20240239499A1
公开(公告)日：2024-07-18
申请号：US18491076
申请日：2023-10-20
Applicant: Rolls-Royce Deutschland Ltd & Co KG
Inventor： Ellis F. H. CHONG , Andreas REEH , Johannes Gabriel BAUER , Anton RUDENKO
CPC classification number: B64D27/24 , H02K1/274 , H02K7/006 , H02K2201/12
Abstract: An electrical machine for an aircraft electrical power system includes a stator having current-carrying coils and flux guiding stator iron defining one or more stator slots that house the current-carrying coils. The electrical machine further includes a rotor having a plurality of permanent magnets configured to interact with the stator to produce a torque. The electrical machine has an active parts mass, mact, which is a cumulated mass of components of the electrical machine that contribute to producing the torque. The electrical machine is configured to produce a peak rated torque, τpeak. The electrical machine has a slot current density, Jslot,peak, when producing the peak rated torque, τpeak. A value of a machine parameter, Λ, defined as: Λ=τpeak/(mact×Jslot,peak) is greater than or equal to 5 μNm3 kg−1A−1.
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公开(公告)号：US11757329B2
公开(公告)日：2023-09-12
申请号：US16860401
申请日：2020-04-28
Applicant: ZF Friedrichshafen AG
Inventor： Viktor Rakoczi , Michael Keckeisen
CPC classification number: H02K7/14 , B60H1/00428 , B60H1/00464 , F04D25/0606 , H02K1/274 , B60H2001/00614
Abstract: A ventilator for a control device for a vehicle may include a stator having a plurality of coils and a rotor comprising a hollow cylinder. An impeller may include a plurality of blades, the impeller being coupled to the hollow cylinder such that a rotation of the hollow cylinder causes a rotation of the impeller. The hollow cylinder may have a plurality of magnets. The stator may partially encompasses the rotor.
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公开(公告)号：US20230155435A1
公开(公告)日：2023-05-18
申请号：US18151585
申请日：2023-01-09
Applicant: East West Manufacturing, LLC
Inventor： Stephen Andrew Semidey
Abstract: An EC motor with a rotor. The rotor has a hub with outwardly extending silicon steel laminates with gaps between. Rectangular neodymium permanent magnets are positioned in the gaps. Wedge-shaped ferrite permanent magnets are positioned radially between the silicon steel laminates and the hub of the rotor.
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公开(公告)号：US20230111062A1
公开(公告)日：2023-04-13
申请号：US17912064
申请日：2021-01-27
Applicant: Mitsubishi Electric Corporation
Inventor： Yoshihiro MIYAMA , Kosho YAMANE , Junji KITAO , Kodai OKAZAKI , Tatsuo NISHIMURA , Tomohira TAKAHASHI
IPC: H02K1/274
Abstract: A rotor includes a rotor core fixed to a shaft, a pair of magnet slots arranged in a V-shape in the rotor core so as to be separated away from each other toward a radially outer side, permanent magnets inserted into the magnet slots, and a hole provided on the radially outer side of the magnet slots. The distance between each permanent magnet and the hole increases toward the radially outer side. The distance between an outer circumference of the rotor core and the hole is not less than the distance between each magnet slot and the outer circumference of the rotor core.
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公开(公告)号：US20220393547A1
公开(公告)日：2022-12-08
申请号：US17886511
申请日：2022-08-12
Applicant: BMC CO., LTD.
Inventor： Ok Yun KIM , Kea Ho LEE , Haeng Chul SIN , Gwan Seon JEONG
Abstract: A hollow shaft motor includes: a motor housing 11 having a cylindrical shape; a housing cover assembly 12 coupled to an upper portion of the motor housing 11; a rear cover 15 coupled to a lower portion of the motor housing 11; a stator assembly 20 located in the motor housing 11 and in a lower portion of the housing cover assembly 12; and a rotor assembly 30 located in the stator assembly 20 to rotate.
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Patent Agency Ranking
公开(公告)号：US11316390B2
公开(公告)日：2022-04-26
申请号：US16781084
申请日：2020-02-04
Applicant: Yilmaz Sozer , Anik Chowdhury , Shuvajit Das , Naoto Saito , Subrata Saha , Takamasa Takeuchi , Yasunobu Shiotsuki , Teppei Tsuda
Inventor： Yilmaz Sozer , Anik Chowdhury , Shuvajit Das , Naoto Saito , Subrata Saha , Takamasa Takeuchi , Yasunobu Shiotsuki , Teppei Tsuda
IPC: H02K1/2789 , H02K1/279 , H02K1/2793 , H02K1/274 , H02K21/16
Abstract: A transverse flux machine includes a stator assembly consisting of a plurality of shaped cores, each having a base with a plurality of legs with a corresponding gap between each leg and each leg having a winding. A rotor assembly is positioned adjacent the stator assembly and includes a rotor disc, and a rotor ring with a plurality of rotor poles interleaved with a plurality of interpoles. The plurality of rotor poles and plurality of interpoles are radially disposed around the rotor disc. The plurality of rotor poles include a plurality of focused rotor poles interleaved with a plurality of diffused rotor poles.
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公开(公告)号：US11316389B2
公开(公告)日：2022-04-26
申请号：US16642280
申请日：2018-08-08
Applicant: LG INNOTEK CO., LTD.
Inventor： Jin Su Pyeon , Shung Hun Woo
Abstract: An embodiment provides a stator comprising a stator core having a plurality of teeth and coils wound around the teeth, wherein the tooth includes a body around which the coil is wound and a shoe connected to the body, the shoe includes a plurality of grooves and a curvature center of the inner peripheral surface of the shoe is the same as the center of the stator core.
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公开(公告)号：US20240195341A1
公开(公告)日：2024-06-13
申请号：US18196886
申请日：2023-05-12
Applicant: VOLTU MOTOR, INC.
Inventor： Jorge Guillermo GEBHART
IPC: H02P27/08 , B60L15/20 , B60L50/51 , B60L50/60 , B60L50/64 , B60L53/14 , B60L53/24 , H01M10/42 , H01M10/48 , H01M50/213 , H01M50/249 , H01M50/293 , H02K1/27 , H02K1/274 , H02K1/278 , H02K3/46 , H02K5/20 , H02K9/12 , H02K9/16
CPC classification number: H02P27/08 , B60L15/20 , B60L50/51 , B60L50/60 , B60L50/64 , B60L53/14 , B60L53/24 , H01M10/4257 , H01M10/48 , H01M50/213 , H01M50/249 , H01M50/293 , H02K1/27 , H02K1/274 , H02K1/278 , H02K3/46 , H02K5/203 , B60L2220/54 , B60L2240/547 , H01M2010/4271 , H01M2220/20 , H02K9/12 , H02K9/16 , Y02T10/64 , Y02T10/70 , Y02T10/7072 , Y02T10/72 , Y02T90/12 , Y02T90/14
Abstract: A rotor assembly and motor having the rotor assembly is described. The rotor assembly includes a rotor core formed from a plurality of rotor sheets, each rotor sheet having a cross section shape defining a plurality of magnet retaining tabs, the magnet retaining tabs defining a magnet receiving gap and at least one magnet shaped to be installed within the magnetic receiving gap.
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公开(公告)号：US11827371B1
公开(公告)日：2023-11-28
申请号：US18201657
申请日：2023-05-24
Applicant: Rolls-Royce Deutschland Ltd & Co KG
Inventor： Ellis F H Chong , Andreas Reeh , Johannes Gabriel Bauer , Anton Rudenko
CPC classification number: B64D27/24 , H02K1/274 , H02K7/006 , H02K2201/12
Abstract: An electrical power system for an aircraft includes a DC:AC power electronics converter and a transverse flux electrical machine. The transverse flux electrical machine includes a rotor that is coupleable to a rotating shaft of a propulsor of the aircraft, wherein the rotor includes a plurality of permanent magnets defining a number, NP, of evenly distributed rotor poles. The transverse flux electrical machine further includes a stator arranged to interact with the rotor, such that a torque is produced. The stator includes a plurality of coils.
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公开(公告)号：US11791682B2
公开(公告)日：2023-10-17
申请号：US17985152
申请日：2022-11-11
Applicant: GENESIS MOTION SOLUTIONS ULC
Inventor： James Klassen , Damian Spasov , Bradley Pope , Jason Kum
IPC: H02K1/27 , H02K1/30 , H02K1/274 , H02K15/03 , H02K1/2791
CPC classification number: H02K1/30 , H02K1/274 , H02K1/2791 , H02K15/03
Abstract: A permanent magnet carrier, which could be a rotor or stator of an electric machine, includes a first non-magnetic ring and a second non-magnetic ring. Between the rings are soft magnetic pole elements. The soft magnetic pole elements each connect to the first and second non-magnetic rings and the soft magnetic pole elements are separated from each other by the first and second non-magnetic rings. Permanent magnets are disposed between the soft magnetic pole elements.
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