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公开(公告)号：US20240154475A1
公开(公告)日：2024-05-09
申请号：US18490431
申请日：2023-10-19
发明人： Kento OMURA , Shunsuke KAWASAKI , Kenta CHIMATA
IPC分类号： H02K1/2706 , H02K15/03
CPC分类号： H02K1/2706 , H02K15/03 , H02K2201/06
摘要： A rotor for an electric motor may include a shaft extending along a rotation axis of the electric motor and a rotor core comprising a plurality of core blocks fixed to the shaft and arranged along the rotation axis. The plurality of core blocks may include a first core block and a second core block that are oriented differently from each other in a circumferential direction about the rotation axis. Each of the plurality of core blocks may include an outer surface extending along the circumferential direction, a center hole through which the shaft passes, and an outer groove defined in the outer surface. An inner surface of the center hole may be in continuous contact in the circumferential direction with an outer surface of the shaft over an entire circumference thereof.
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公开(公告)号：US20240146135A1
公开(公告)日：2024-05-02
申请号：US18404150
申请日：2024-01-04
发明人： Bernhard L. Schuler , Rich Lee , Jorgen Rasmussen
IPC分类号： H02K3/26 , H02K1/12 , H02K1/18 , H02K1/276 , H02K1/2795 , H02K1/32 , H02K3/12 , H02K3/28 , H02K3/47 , H02K3/52 , H02K9/12 , H02K15/03 , H02K16/00 , H02K21/24 , H02K35/02 , H02P31/00
CPC分类号： H02K3/26 , H02K1/12 , H02K1/182 , H02K1/2773 , H02K1/2795 , H02K1/32 , H02K3/12 , H02K3/28 , H02K3/47 , H02K3/521 , H02K9/12 , H02K15/03 , H02K16/00 , H02K21/24 , H02K35/02 , H02P31/00 , H02K2201/03 , H02K2203/03 , H02K2211/03 , Y02B10/30 , Y02E10/72
摘要： An axial field rotary energy device can include a rotor comprising an axis of rotation and a magnet. In addition, a stator can be coaxial with the rotor. The stator can include a plurality of stator segments that are coupled together about the axis. Each stator segment can include a printed circuit board (PCB) having a PCB layer comprising a coil. Each stator segment also can include only one electrical phase. The stator itself can include one or more electrical phases.
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23.发明公开公开(公告)号：US20240128841A1
公开(公告)日：2024-04-18
申请号：US18371837
申请日：2023-09-22
申请人： BETA AIR, LLC
发明人： Stephen Widdis , Manon Belzile
IPC分类号： H02K15/03 , H02K1/2706 , H02K1/28
CPC分类号： H02K15/03 , H02K1/2706 , H02K1/28 , H02K2215/00
摘要： In an aspect of the present disclosure is an electric aircraft motor with a fully welded rotor. The motor includes a stator and a rotor. The stator includes an inner cylindrical surface and an outer cylindrical surface. The rotor includes a cylindrical portion and spokes welded to the cylindrical portion. In another aspect of the present disclosure is a method for manufacturing a fully welded rotor.
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公开(公告)号：US11961660B2
公开(公告)日：2024-04-16
申请号：US17007099
申请日：2020-08-31
IPC分类号： H01F41/02 , H01F7/02 , H01F27/245 , H02K15/03 , H02K15/12
CPC分类号： H01F41/0233 , H01F7/02 , H01F27/245 , H02K15/03 , H02K15/12
摘要： A magnetic-core assembling tool may include first and second compression plate alignment guides configured to be respectively fitted to first and second compression plates of a magnetic-core assembly, a plurality of semiannular tension bars, and a clamping plate. The semiannular tension bars may be attached at a first end to the first compression plate alignment guide and at a second end to the clamping plate. The clamping plate may include a plurality of compression shoes configured to apply a variable amount of compression to the magnetic-core assembly. A method of assembling a magnetic-core assembly includes assembling a plurality of lamination stacks, staging the plurality of lamination stacks to provide a magnetic-core assembly, assembling a magnetic-core assembling-tool around the magnetic-core assembly, and injecting magnet retention adhesive into a plurality of magnet retention slots in the magnetic-core assembly housed in the magnetic-core assembling tool.
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公开(公告)号：US11958948B2
公开(公告)日：2024-04-16
申请号：US18039357
申请日：2021-11-30
申请人： NITTA CORPORATION
发明人： Takuji Komukai , Maki Onizuka
IPC分类号： H02K1/27 , C08J5/00 , C08J5/04 , H02K1/2706 , H02K15/03
CPC分类号： C08J5/042 , C08J5/005 , H02K1/2706 , H02K15/03 , C08J2300/00
摘要： A rotary member rotatable along a circumferential direction includes: carbon fibers wound in the circumferential direction; a matrix resin in which the carbon fibers are embedded; and a structure which includes a plurality of carbon nanotubes having a bent shape with a bent portion, forms a network structure including a contact portion where the carbon nanotubes are in direct contact with each other, and is provided on surfaces of the carbon fibers.
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公开(公告)号：US20240120788A1
公开(公告)日：2024-04-11
申请号：US18548257
申请日：2022-01-28
发明人： Kazuhiro SATO , Kei OHTA
IPC分类号： H02K1/2783 , H02K15/03
CPC分类号： H02K1/2783 , H02K15/03
摘要： A magnet arrangement method capable of easily assembling magnets is provided. A magnet arrangement method according to one aspect of the present invention is a magnet arrangement method for arranging a plurality of magnetized magnets in a Halbach array, the method comprising: a process of forming a first magnet group by combining magnets in such a way that a direction of a magnetic force that acts on the magnets is oriented in a first direction; a process of forming a second magnet group by combining magnets in such a way that the direction of a magnetic force that acts on the magnets is oriented in a second direction that is opposite to the first direction; and a process of assembling a plurality of the first magnet groups and a plurality of the second magnet groups.
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公开(公告)号：US11955844B2
公开(公告)日：2024-04-09
申请号：US17295447
申请日：2019-11-11
申请人： MITSUBA Corporation
发明人： Ryo Ohori , Koji Yonekawa , Takeshi Kanai
IPC分类号： H02K1/27 , H02K1/278 , H02K1/2791 , H02K15/03
CPC分类号： H02K1/2791 , H02K1/278 , H02K15/03
摘要： A rotor is provided with: a rotor core (32); a plurality of permanent magnets (33); a substantially tubular magnet cover (71); and a load reception block (70). The rotor core (32) rotates integrally with a rotary shaft of a motor. The permanent magnets (33) are arranged on the outer peripheral part of the rotor core (32). The magnet cover (71) covers the exterior of the plurality of permanent magnets (33) and the rotor core (32), and has a flange part which is bent radially inward at the end along a rotation axis. The load reception block (70) is disposed between the flange part and the end surface of the rotor core (32) in a direction along the rotation axis, and abuts against the flange part and the rotor core (32).
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公开(公告)号：US20240113605A1
公开(公告)日：2024-04-04
申请号：US18372190
申请日：2023-09-25
发明人： Yuki Abe , Yuki Hasegawa , Masatoshi Nagashima
CPC分类号： H02K15/03 , B23P11/022 , H02K1/28
摘要： A method for manufacturing a rotor including a rotor body, and a sleeve surrounding an outer peripheral portion of the rotor body and applying a pressurizing force toward an inner periphery to the rotor body, includes: preparing the sleeve having a tubular shape and having an inner diameter smaller than an outer diameter of the rotor body; expanding an inner diameter of the sleeve to be larger than an outer diameter of the rotor body, by applying a liquid pressure to an inner diameter portion of the sleeve; inserting the rotor body into the inner diameter portion of the sleeve while applying the liquid pressure; and fixing the sleeve to the rotor body by removing the liquid pressure and contracting the sleeve.
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公开(公告)号：US11949299B2
公开(公告)日：2024-04-02
申请号：US18307662
申请日：2023-04-26
发明人： Masayuki Akaishi
CPC分类号： H02K15/03 , H02K15/12 , Y10T29/49012 , Y10T29/53143
摘要： A rotor manufacturing method comprises an arranging step for arranging a rotor core, which is formed by stacking electromagnetic steel plates, to direct the stacked electromagnetic steel plates toward a vertical direction, a guide inserting step for inserting a rod-like guide into a magnet insertion hole formed to extend in the stacked direction of the rotor core after the arranging step, a sheet inserting step for inserting a plurality of sheets from above the rotor core into the magnet insertion hole along different side surfaces of the guide after the guide inserting step, a guide pull-out step for pulling out the guide from the magnet insertion hole after the sheet inserting step, and a magnet inserting step for inserting a permanent magnet between the plurality of sheets within the magnet insertion hole after the guide pull-out step.
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公开(公告)号：US11942838B2
公开(公告)日：2024-03-26
申请号：US17443375
申请日：2021-07-26
发明人： Kenta Takeshima
摘要： A method of assembling a rotor including a cylindrical rotor core and a permanent magnet that is held in a hole portion provided in the rotor core such that a longitudinal direction of the permanent magnet is parallel to an axis of the rotor core. The method includes: a load measuring step of measuring a load applied to the permanent magnet or/and the rotor core when the permanent magnet is brought into contact with the rotor core; and a moving step of moving the permanent magnet or/and the rotor core so as to change a position of the permanent magnet relative to the rotor core, depending on data relating to the load measured at the load measuring step, such that a positional deviation between the permanent magnet and the hole portion is reduced. Also disclosed is a control device for a rotor assembly apparatus.
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