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公开(公告)号：US20240136896A1
公开(公告)日：2024-04-25
申请号：US18548247
申请日：2022-02-02
发明人： Yushi TAKEUCHI
IPC分类号： H02K15/03 , H02K1/2792
CPC分类号： H02K15/03 , H02K1/2792
摘要： A magnet arrangement method in which magnetized magnets arranged in a Halbach array can be arranged at preset positions with a high accuracy is provided. The method includes an arrangement process of arranging a plurality of magnetized magnets in an arrangement jig made of a magnetic body, in which, in the arrangement process, a size of an area that the arrangement jig contacts a preset magnetized magnet is made different from a size of an area that the arrangement jig contacts another magnetized magnet.
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公开(公告)号：US11973375B2
公开(公告)日：2024-04-30
申请号：US17612658
申请日：2019-12-23
申请人： Magic Leap, Inc.
IPC分类号： H02K1/27 , H02K1/2792 , H02K1/2795 , H02K3/26
CPC分类号： H02K1/2795 , H02K1/2792 , H02K3/26 , H02K2211/03
摘要： An annular axial flux motor includes a rotor mounted on an annular subsection of a rotatable cam ring and a stator mounted on an annular subsection of a carrier frame. The rotor includes two Halbach arrays of permanent magnets spaced from each other on the cam ring along an axial direction. The stator includes multiple phase electrical windings printed on multiple layers of a printed circuit board (PCB) that are stacked along the axial direction. The multiple layers are positioned between the Halbach arrays, with active side of the Halbach arrays facing to opposite sides of the multiple layers. The Halbach arrays are configured to generate a symmetrical magnetic field and the multiple phase electrical windings are configured to have a same rotor-dependent torque constant, such that the stator can generate a constant torque to rotate the rotor and the cam ring within a finite travel range.
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公开(公告)号：US11831206B2
公开(公告)日：2023-11-28
申请号：US17213671
申请日：2021-03-26
发明人： Bradley Losey , Marcelo Dapino
IPC分类号： H02K1/27 , H02K16/02 , H02K1/2792 , H02K29/03 , H02K3/28
CPC分类号： H02K1/2792 , H02K3/28 , H02K16/02 , H02K29/03 , H02K2213/03
摘要： An exemplary axial cladding magnet magnetically-geared machine is disclosed comprising Halbach array cladding magnets located on the axial ends of the magnetically-geared machine. The Halbach array cladding magnets can be used to increase the magnetic efficiency and torque transmission of the magnetically-geared machine by mitigating end-effect losses.
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公开(公告)号：US20240235340A9
公开(公告)日：2024-07-11
申请号：US18548247
申请日：2022-02-02
发明人： Yushi TAKEUCHI
IPC分类号： H02K15/03 , H02K1/2792
CPC分类号： H02K15/03 , H02K1/2792
摘要： A magnet arrangement method in which magnetized magnets arranged in a Halbach array can be arranged at preset positions with a high accuracy is provided. The method includes an arrangement process of arranging a plurality of magnetized magnets in an arrangement jig made of a magnetic body, in which, in the arrangement process, a size of an area that the arrangement jig contacts a preset magnetized magnet is made different from a size of an area that the arrangement jig contacts another magnetized magnet.
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公开(公告)号：US11962195B2
公开(公告)日：2024-04-16
申请号：US16839465
申请日：2020-04-03
申请人： DENSO CORPORATION
发明人： Makoto Taniguchi
IPC分类号： H02K1/27 , H02K1/16 , H02K1/2792 , H02K7/00
CPC分类号： H02K1/2792 , H02K1/16 , H02K7/003
摘要： A rotary electric machine according to the present disclosure provides a rotary electric machine including: a rotor; and a concentrated winding stator arranged coaxially to the rotor, in which the number of teeth of the concentrated winding stator is set to be a value where an integer which is multiple of 3 between adjacent prime numbers in a prime number sequence is multiplied by 2 and the number of poles of the rotor is set to be a value where any prime number between the adjacent prime numbers is multiplied by 2.
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公开(公告)号：US20230369926A1
公开(公告)日：2023-11-16
申请号：US18121830
申请日：2023-03-15
发明人： Yoshihiro OKUMATSU
IPC分类号： H02K1/2792
CPC分类号： H02K1/2792
摘要： A motor according to the present disclosure includes a rotor. The rotor includes a plurality of first magnets arranged in a Halbach arrangement in a circumferential direction of the rotor, and a second magnet. The plurality of first magnets and the second magnets are arranged alternately and adjacent to each other. The second magnet is longer in the circumferential direction of the rotor as compared to the first magnet. The first magnet and the second magnet have a substantially trapezoidal shape when viewed from the rotation axis direction of the rotor.
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公开(公告)号：US12081103B2
公开(公告)日：2024-09-03
申请号：US17770861
申请日：2020-10-01
IPC分类号： H02K7/09 , B64U30/27 , H02K1/2792 , B64U50/19
CPC分类号： H02K7/09 , B64U30/27 , H02K1/2792 , B60L2200/10 , B64U50/19 , Y02T10/64
摘要： Modified magnetic levitation system for flying vehicle Modified magnetic levitation system for flying vehicle includes a propeller system (11, 12, 13), an axial levitation system (101, 102), radial levitation system (part of 201), rotary propulsion system (part of 201) and passive magnetic bearing system (301). An axial levitation system includes plurality of halbach array pairs connected on rotor and special short circuited coil windings connected on stator. A propulsion mechanism (part of 201) is provided for rotating rotor along the centre axis. Radial levitation and propulsion system (201) includes halbach arrays (53) located at outer circumference of rotor and interweaved active and passive coil windings (43) located at inner circumference of stator. Passive magnetic bearing system (301) includes parts of rotor and stator around centre axis of the system. Passive magnetic bearing (PMB) is utilized to levitate rotor at rest, below lift-off speed, and start and end condition of rotations.
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公开(公告)号：US11831210B2
公开(公告)日：2023-11-28
申请号：US17713120
申请日：2022-04-04
申请人： Mirko Dusan Vojnovic
发明人： Mirko Dusan Vojnovic
IPC分类号： H02K16/02 , H02K21/12 , H02K3/12 , H02K1/2792 , H02K1/2783
CPC分类号： H02K16/02 , H02K1/2783 , H02K1/2792 , H02K3/12 , H02K21/12
摘要： The invention relates to a non-cogging electric generator having at least one stator and at least one dual rotor, wherein the dual rotor comprises a plurality of primary magnet devices arranged in circular Halbach array. Non-cogging is achieved by having inner and outer rotor rotating synchronously. Concentration of magnetic flux is achieved by magnetic devices tapering into pyramidal shape, such that magnetic devices arranged on the inner rotor are facing magnetic devices on the outer rotor, whereas said magnetic devices are facing each other with the opposite polarity. Stator comprises electrical wire windings and is positioned between inner and outer rotor.
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公开(公告)号：US20230287889A1
公开(公告)日：2023-09-14
申请号：US18200775
申请日：2023-05-23
申请人： MICHAEL NEWGENT
发明人： MICHAEL NEWGENT
IPC分类号： F04D17/10 , H02K1/2792 , H02K7/18 , F04D25/06
CPC分类号： F04D17/10 , H02K1/2792 , H02K7/1823 , F04D25/06
摘要： A gas compressor includes an incompressible fluid source for storing an incompressible fluid. A rotary shaft is coupled to the incompressible fluid source. Operation of the rotary shaft draws the incompressible fluid up or down the rotary shaft. A piston chamber is coupled to each piston in a set of pistons. The incompressible fluid is delivered to the first piston by a controlled fluid valve assembly, to drive the first piston. The centripetal force from the rotation of the rotary shaft and the force of incompressible fluid from an impeller drive the first piston to compress a gas in the piston chamber of the first piston. The incompressible fluid is released from the first piston, by the controlled fluid valve assembly. The incompressible fluid is alternately delivered to the second piston to drive the second piston and compress gas.
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公开(公告)号：US20240322661A1
公开(公告)日：2024-09-26
申请号：US18732089
申请日：2024-06-03
IPC分类号： H02K16/02 , B22F9/04 , B60K7/00 , H01F1/057 , H01F41/02 , H02K1/27 , H02K1/278 , H02K1/2783 , H02K1/2786 , H02K1/2792 , H02K3/28 , H02K3/42 , H02K15/03 , H02K21/12
CPC分类号： H02K16/025 , B60K7/00 , H01F1/0576 , H01F41/0266 , H01F41/0273 , H02K1/27 , H02K1/278 , H02K1/2783 , H02K1/2792 , H02K3/28 , H02K3/42 , H02K15/03 , H02K16/02 , H02K21/12 , B22F9/04 , H02K1/2786 , H02K2201/03
摘要： A dual-rotor machine comprising a dual rotor support structure rotatably connected to a frame. A stationary stator is disposed between the rotors and is fixed to the frame. An inner rotor and outer rotor, each comprising a permanent magnet Halbach array, are coaxially disposed with the stator and are rotable about the stator. In this configuration, the inner rotor channels its magnetic flux to its outside, while the outer rotor channels its magnetic flux to its inside. The magnetic flux density at the stator for the dual-rotor machine can be as high as 2 Tesla or higher for high-grade neodymium-iron-boron permanent magnet material, and the stored magnetic energy for conversion to mechanical or electrical energy available to the stator may be at least 0.5 KJ/m. The rotor Halbach arrays may comprise monolithic permanent magnets with continuously variable magnetic field direction.
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