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公开(公告)号：US20240313614A1
公开(公告)日：2024-09-19
申请号：US18565338
申请日：2022-06-08
Applicant: Akihiko TANAKA , Yu WANG
Inventor： Akihiko TANAKA , Yu WANG
CPC classification number: H02K7/09 , F16C32/0468 , H02K7/025
Abstract: A bearing 100 is provided between an outermost peripheral portion and an innermost peripheral portion of a flywheel 110. The bearing 100 includes a bearing rotor 120 firmly fixed to rotate integrally with the flywheel 110, and a bearing stator 130 provided inside the bearing rotor 120 in a fixed state, and includes a radially outer side magnet 121 and a radially inner side magnet 131 with the same magnetic pole on the bearing rotor 120 and the bearing stator 130 at positions facing each other. Accordingly, the bearing rotor 120 rotates at a position close to a rotating shaft 1, so that the rotation of the bearing rotor 120 and the flywheel 110 rotating with the bearing rotor 120 is stabilized, and the bearing 100 is compactly disposed at a position inside the outermost peripheral portion of the flywheel 110, thereby being capable of downsizing the device.
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公开(公告)号：US12066056B2
公开(公告)日：2024-08-20
申请号：US17798830
申请日：2021-02-02
Applicant: NTN Corporation
Inventor： Takashi Koike , Yusuke Shibuya , Sota Yamaguchi
CPC classification number: F16C32/0474 , F16C43/04 , H02K7/09
Abstract: A bearing device includes: a magnetic ring fixed to an inner ring; and a stator fixed to an outer ring so as to face magnetic ring. Magnetic ring and stator constitute a claw pole type generator. Stator includes a coil and a magnetic yoke surrounding coil. The magnetic yoke is configured by combining a first member and a second member that are magnetic bodies. First member and second member have an identical shape. Each of first member and second member has a plurality of second claws arranged in a comb shape. A plurality of first claws of first member and the plurality of second claws of second member are alternately arranged on a surface facing magnetic ring.
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公开(公告)号：US20240275257A1
公开(公告)日：2024-08-15
申请号：US18632628
申请日：2024-04-11
Applicant: Copenhagen Atomics A/S
Inventor： Aslak STUBSGAARD , Thomas Jam PEDERSEN , Thomas STEENBERG
Abstract: A canned rotodynamic flow machine (1) configured for operating with a working fluid such as molten salt of a molten salt nuclear reactor. The stator windings are formed by one or more electrically conductive solid bars (12).
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公开(公告)号：US12046954B2
公开(公告)日：2024-07-23
申请号：US17350436
申请日：2021-06-17
Applicant: Efficient Energy GmbH
Inventor： Holger Sedlak
IPC: H02P6/16 , H02K1/14 , H02K1/276 , H02K1/2795 , H02K3/18 , H02K3/28 , H02K3/52 , H02K7/09 , H02P6/28 , H02P23/14
CPC classification number: H02K1/2795 , H02K1/148 , H02K1/276 , H02K3/18 , H02K3/28 , H02K3/522 , H02K7/09 , H02P6/16 , H02P6/28 , H02P23/14 , H02P2203/03
Abstract: An electric motor includes: a rotor with a first number of permanent magnets, wherein each permanent magnet encompasses a first circular sector; a stator with a second number of pole feet, wherein a first group of coils is electrically connected via a first star point, wherein a second group of coils is electrically connected via a second star point to be conductive, wherein the second star point is electrically insulated from the first star point, wherein a coil of the first group of coils is arranged between two coils of the second group of coils; and a controller for applying drive signals to the first group of coils so as to provide the rotor with a torque with respect to the stator, and for applying a control signal that differs from the drive signals to at least one coil of the second group of coils.
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5.发明授权公开(公告)号：US12046935B2
公开(公告)日：2024-07-23
申请号：US17711083
申请日：2022-04-01
Applicant: Premergy, Inc.
Inventor： Richard Edward Botts
CPC classification number: H02J7/0042 , H02J7/0024 , H02J7/007 , H02J7/14 , H02K1/17 , H02K1/2706 , H02K7/09 , H02K13/10 , H02K31/02 , H02J7/0068 , H02K1/27 , Y02T10/70
Abstract: Systems, methods, and apparatus for providing a homopolar generator charger with an integral rechargeable battery. A method is provided for converting rotational kinetic energy to electrical energy for charging one or more battery cells. The method can include rotating, by a shaft, a rotor in a magnetic flux field to generate current, wherein the rotor comprises an electrically conductive portion having an inner diameter conductive connection surface and an outer diameter conductive connection surface, and wherein a voltage potential is induced between the inner and outer diameter connection surfaces upon rotation in the magnetic flux field. The method can also include selectively coupling the generated current from the rotating rotor to terminals of the one or more battery cells.
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Patent Agency Ranking
公开(公告)号：US20230412059A1
公开(公告)日：2023-12-21
申请号：US18336751
申请日：2023-06-16
Inventor： Lionel DURANTAY , Christophe GROSSELIN , Alfred PERMUY , Kevin SCHMISSER
Abstract: Provided is an electric stabiliser for stabilising a floating structure that includes a track for guiding a mover as a moving stabiliser mass. A direct current (DC) linear motor includes a planar stator that extends along the track and the mover that is adapted to move forwards and backwards along the track as the stabiliser mass. The planar stator includes a polyphase stator winding with winding coils connected. The mover includes permanent motor magnets facing the polyphase stator winding that define mover poles of alternating polarity along the track direction. Two active magnetic bearings is positioned between the track and a main body of the mover for selectively levitating the mover. In use, the active magnetic bearings levitate the mover above the track and the DC linear motor is controlled to move the mover backwards and forwards along the track to dampen a rolling/pitching movement of the floating structure.
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公开(公告)号：US20230378848A1
公开(公告)日：2023-11-23
申请号：US17816822
申请日：2022-08-02
Inventor： Hee Jin KANG , Yunho KIM
Abstract: A magnetic levitation rotor sail is proposed. The rotor sail may include a coil unit provided at a lower portion of a body of the rotor sail, and an electromagnet configured to levitate the coil unit. The rotor sail may also include a support member supporting the electromagnet, and a gap sensor provided at the support member and configured to measure a gap between the coil unit and the electromagnet.
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8.发明公开公开(公告)号：US20230361648A1
公开(公告)日：2023-11-09
申请号：US17630939
申请日：2021-03-26
Applicant: JIANGSU UNIVERSITY
Inventor： Weiyu ZHANG , Lindong ZHANG , Huangqiu ZHU , Long SHAN , Juexin YU , Jianping WANG
Abstract: A tumbler-type vehicle-mounted flywheel energy storage device with five-degree-of-freedom magnetic suspension support for an electric vehicle is provided. A flywheel is formed into a bowl by a metal flywheel rotor and a composite material ring by interference fit. The metal flywheel rotor comprises an upper-section ring, a mid-section hollow hemisphere, and a lower-section ring. The composite material ring is closely fitted outside the upper-section ring to form a bowl-shaped bowl opening part. An annular axial thrust disc protrudes inward in a radial direction from an inner wall on a bottom end of the upper-section ring. An area above the axial thrust disc is a bowl opening empty slot layer, and an area below the axial thrust disc is a sphere empty slot layer and a bowl bottom empty slot layer in sequence, which form an inner cavity of the flywheel. A supporting frame is fitted in an inner stator.
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公开(公告)号：US20230352997A1
公开(公告)日：2023-11-02
申请号：US17734519
申请日：2022-05-02
Applicant: Wisconsin Alumni Research Foundation
Inventor： Eric Loren Severson , Zhouzhou Wang
IPC: H02K1/2796 , H02K3/28
CPC classification number: H02K1/2796 , H02K3/28 , H02K7/09
Abstract: A machine system includes a shaft, a first rotor, a first stator, a second rotor, a second stator, a first, first-phase coil and a second, first-phase coil of a first stator winding, a first, second-phase coil and a second, second-phase coil of a second stator winding, and a first, third-phase coil and a second, third-phase coil of a third stator winding wound about the first stator, a first, first-phase coil and a second, first-phase coil of a fourth stator winding, a first, second-phase coil and a second, second-phase coil of a fifth stator winding, and a first, third-phase coil and a second, third-phase coil of a sixth stator winding wound about the second stator, and an inverter drive system. The stator windings are configured to provide a torque and a suspension force under control of an inverter drive system consisting of only three inverters.
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公开(公告)号：US20230275533A1
公开(公告)日：2023-08-31
申请号：US18143890
申请日：2023-05-05
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Masahiro YAMAMOTO , Masaki NAKAISHI
CPC classification number: H02P27/06 , H02M7/06 , H02M7/537 , H02K7/09 , H02P6/182 , H02K11/33 , H02M7/05
Abstract: A power conversion device includes a converter circuit, an inverter circuit including a switching element, a first capacitor, a buffer circuit, and a current supply circuit. The converter circuit converts a first alternating current into a direct current, and outputs the direct current to a pair of wires. The inverter circuit converts the direct current into a second alternating current by a switching operation of the switching element, and supplies the second alternating current to drive coils of a motor so that a drive shaft is rotationally driven. The first capacitor and the buffer circuit are connected between the pair of wires. The buffer circuit includes a second capacitor and a regulator connected in series. The current supply circuit supplies a current to support coils using energy stored in the second capacitor so that a load of the drive shaft is supported in a non contact manner.
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