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1. 发明授权

US11958596B2 Systems and methods for reducing noise based on effective rotor area relative to a center of rotation 有权
公开(公告)号：US11958596B2
公开(公告)日：2024-04-16
申请号：US16748254
申请日：2020-01-21
申请人： MagLev Aero Inc.
发明人： Ian Morris Randall
IPC分类号： B64C29/02 , B64C13/26 , B64C13/50 , B64C27/00 , B64C27/10 , B64C27/14 , B64C27/20 , B64C27/32 , B64C27/473 , B64C27/68 , B64C27/72 , B64C29/00 , B64D27/24 , B64D35/02 , B64D35/04 , B64U10/13 , B64U50/19 , F01D5/02 , H02K1/17 , H02K1/18 , H02K1/2786 , H02K1/2791 , H02K1/2793 , H02K1/2795 , H02K1/28 , H02K11/21 , H02K16/00 , H02K21/22 , H02K21/24 , H02N15/00 , B64C27/80 , B64C39/02 , B64D35/06 , B64U30/20
CPC分类号： B64C29/0025 , B64C13/26 , B64C13/50 , B64C27/10 , B64C27/20 , B64C27/32 , B64C27/473 , B64C27/68 , B64C27/72 , B64C29/00 , B64C29/0016 , B64C29/02 , B64D27/24 , B64D35/02 , B64D35/04 , F01D5/02 , H02K1/17 , H02K1/187 , H02K1/2786 , H02K1/2791 , H02K1/2793 , H02K1/2795 , H02K1/28 , H02K11/21 , H02K16/00 , H02K21/22 , H02K21/24 , H02N15/00 , B64C2027/003 , B64C2027/004 , B64C27/14 , B64C27/80 , B64C39/024 , B64D35/06 , B64U10/13 , B64U30/20 , B64U50/19
摘要： Systems and methods relate to a vertical takeoff and landing (VTOL) platform that can include a stator and a rotor magnetically levitated by the stator. The rotor and stator can be annular, such that the rotor rotates about a rotational axis. The stator can include magnets that provide guidance, levitation, and drive forces to drive the rotor, as well as to control operation of rotor blades of the rotor that can be independently rotated to specific pitch angles to control at least one of lift, pitch, roll, or yaw of the VTOL platform. Various controllers can be used to enable independent and redundant control of components of the VTOL platform.

2. 发明公开

US20230421007A1 DOUBLE AIR GAP-TYPE SURFACE PERMANENT MAGNET SYNCHRONOUS MOTOR PROVIDED WITH NON-MAGNETIC SHIELDING MEMBER 审中-公开
公开(公告)号：US20230421007A1
公开(公告)日：2023-12-28
申请号：US18039249
申请日：2021-01-20
申请人： KYUNGSUNG UNIV. INDUSTRY COOPERATION FOUNDATION
发明人： Jin-woo AHN , Kwang-il JEONG , Do-hyun KANG
IPC分类号： H02K1/278 , H02K1/14 , H02K1/276 , H02K16/00 , H02K21/02 , H02K29/03 , H02K21/14 , H02K21/22
CPC分类号： H02K1/278 , H02K1/14 , H02K1/2766 , H02K16/00 , H02K21/021 , H02K29/03 , H02K21/14 , H02K21/22 , H02K2201/03 , H02K2213/03
摘要： The present disclosure relates to a double air gap surface permanent magnet synchronous motor with non-magnetic solid, and particularly, to a double air gap surface permanent magnet synchronous motor with non-magnetic solid, which doubles structures of a rotor and a stator to improve torque performance and has high efficiency and a high power density that satisfy an international efficiency class IE5 of International Electro-technical Commission (IEC) and includes a non-magnetic solid that blocks magnetic fluxes from two permanent magnets so as not to offset mutually. According to an embodiment of the present disclosure, a double air gap surface permanent magnet synchronous motor with non-magnetic solid includes a first stator configured to include first protrusions formed on a first inner circumferential surface, a first rotor configured to include a first outer circumferential surface facing the first inner circumferential surface, first permanent magnets arranged on the first outer circumferential surface, a second rotor integrally connected to the first rotor to correspond to an inside of the first rotor and configured to include a second inner circumferential surface, second permanent magnets arranged on the second inner circumferential surface, a second stator configured to include second protrusions formed on a second outer circumferential surface formed to face the second inner circumferential surface, and a partition wall portion formed at a boundary between the first rotor and the second rotor.

3. 发明授权

US11823710B2 Dual spindle motors and dual spindle motor control for data storage 有权
公开(公告)号：US11823710B2
公开(公告)日：2023-11-21
申请号：US17679219
申请日：2022-02-24
申请人： Western Digital Technologies, Inc.
发明人： Jaesoo Byoun , Brian Johnson , Gaku Ikedo , Hideaki Ito , Naoyuki Kagami
IPC分类号： G11B19/28 , G11B19/20 , G11B25/04 , H02K16/00
CPC分类号： G11B19/28 , G11B25/043 , H02K16/00 , G11B19/2081 , G11B2220/2516
摘要： Various illustrative aspects are directed to a data storage device comprising a first spindle motor configured to rotate one or more disks in a first stack of disks, a second spindle motor configured to rotate one or more disks in a second stack of disks, and one or more processing devices configured to detect back electromotive force (BEMF) voltages generated by the first spindle motor and the second spindle motor. In other aspects the one or more processing devices can control speeds of the first spindle motor and the second spindle motor based on the detected BEMF voltages.

4. 发明授权

US11784535B2 Actuator 有权
公开(公告)号：US11784535B2
公开(公告)日：2023-10-10
申请号：US17283782
申请日：2019-09-26
申请人： NSK LTD.
发明人： Kazunori Koizumi , Hayao Watanabe
IPC分类号： H02K7/06 , H02K5/173 , H02K7/00 , H02K16/00 , H02K1/12
CPC分类号： H02K7/06 , H02K5/173 , H02K7/003 , H02K16/00 , H02K1/12
摘要： An actuator includes: a first motor including a first stator and a first rotor; a second motor and including a second stator and a second rotor; a shaft member penetrating through the first rotor and the second rotor, and including a first part protruding from the first rotor toward an opposite side to the second rotor and including a spline groove, and a second part protruding from the second rotor toward an opposite side to the first rotor and including a male screw portion; a spline outer cylinder engaging with the spline groove to guide the shaft member and configured to rotate together with the first rotor to enable the shaft member to rotate; and a nut member provided with a female screw portion engaging with the male screw portion of the shaft member, and configured to rotate together with the second rotor to enable the shaft member to move.

5. 发明公开

US20230318365A1 PLANAR DRIVE SYSTEM AND A METHOD FOR INSTALLATION AND REMOVAL OF STATOR MODULES 审中-公开
公开(公告)号：US20230318365A1
公开(公告)日：2023-10-05
申请号：US18295072
申请日：2023-04-03
申请人： Syntegon Technology GmbH
发明人： Sebastian Schwarz , Marcus Kleinert
IPC分类号： H02K1/12 , H02K41/02 , H02K16/00
CPC分类号： H02K1/12 , H02K41/02 , H02K16/00 , H02K2213/12
摘要： A planar drive system (10) includes at least two stator modules (12) and a frame (14). Each of the stator modules (12) has a base body (16) with a transport surface (18) and a rear side (20) opposite the transport surface (18), and further a mounting plate (22) which is detachably mounted on the rear side (20) of the base body (16). The frame (14) includes a plurality of receptacles (24) for receiving a stator module (12), with the stator modules (12) insertable into the receptacles (24) of the frame (14) with the transport surface (18) forward and are lockable in the receptacle (24) by a locking mechanism (26). Also described is a method for the installation and removal of stator modules (12) in a planar drive system (10).

6. 发明授权

US11705795B2 Magnetic levitation motor 有权
公开(公告)号：US11705795B2
公开(公告)日：2023-07-18
申请号：US17463342
申请日：2021-08-31
申请人： Jin-Lang Wang
发明人： Jin-Lang Wang
IPC分类号： H02K16/00 , H02K1/28 , H02K1/14 , H02K7/08
CPC分类号： H02K16/00 , H02K1/14 , H02K1/28 , H02K7/083
摘要： A magnetic levitation motor has a housing, a plurality of stators and a plurality of rotors. The housing has a shaft hole there through, the shaft hole accepting a bearing, the bearing rotatably engages with a rotating shaft that extends from two ends of the housing, and a plurality of fastening portions are disposed on the rotating shaft. A main body section is disposed between at least two of the fastening portions, and the housing having a plurality of dividers to define a plurality of containing spaces. The stator has a fixing disk wrapped with a coil and having a through aperture the fixing disk, and the fixing disk has a plurality of first magnets circularly and radially arranged. The rotor has a moving disk with a toothed hole at a center the moving disk, and the moving disk having a plurality of second magnets arranged circularly and radially.

7. 发明授权

US10637338B2 Rotor for permanent magnet generator 有权
公开(公告)号：US10637338B2
公开(公告)日：2020-04-28
申请号：US15574235
申请日：2016-05-19
申请人： GREENSPUR RENEWABLES LIMITED
发明人： Hugh-Peter Granville Kelly
IPC分类号： H02K1/27 , H02K21/24 , H02K16/00
CPC分类号： H02K21/24 , H02K1/2793 , H02K16/00 , H02K2201/00
摘要： A rotary generator comprising: at least one magnetic annulus pair comprising a first magnetic annulus and a second magnetic annulus with a gap therebetween; a coil annulus in the gap; the first and second magnetic annuli and the coil annulus having a common axis; the first and second magnetic annuli of the at least one magnetic annulus pair each having: a sequence of principle permanent magnets spaced around the common axis with alternating north and south poles facing the gap, corresponding principle permanent magnets of the first and second magnetic annuli of a magnetic annulus pair, with unlike poles facing the gap, facing each other across the gap such that lines of magnetic flux cross the gap between the corresponding principle permanent magnets, and a sequence of intermediate permanent magnets, each of the intermediate permanent magnets being positioned between two of the principle permanent magnets, each intermediate permanent magnet having adjacent the gap a north pole facing a side of the principle permanent magnet of the two principle permanent magnets having a north pole facing the gap and each intermediate permanent magnet having adjacent the gap a south pole facing a side of the principle permanent magnet of the two principle permanent magnets with a south pole facing the gap, the coil annulus having a sequence of coils arranged around the common axis such that the lines of magnetic flux cut the turns of the coils and thus induce electric currents in the coils as the magnetic annuli are caused to rotate relative to the coil annulus, wherein the first and second magnetic annuli of the at least one magnetic annulus pair each further comprise a backing plate of ferromagnetic material, the principle permanent magnets being positioned between the backing plate and the gap and mounted to the backing plate such that adjacent principle permanent magnets are magnetically coupled to one another through the backing plate.

8. 发明申请

US20190239490A1 POWER GENERATION APPARATUS AND AQUARIUM EQUIPMENT COMPRISING THE POWER GENERATION APPARATUS 审中-公开
公开(公告)号：US20190239490A1
公开(公告)日：2019-08-08
申请号：US16269365
申请日：2019-02-06
申请人： GUANGDONG BOYU GROUP CO., LTD
发明人： Youkai YU , Bingyan YU , Jianqin YU
IPC分类号： A01K63/04 , H02K5/132 , H02K21/18 , H02K7/14 , H02K47/20 , A01K63/06 , F04D13/06 , F04D29/00
CPC分类号： A01K63/047 , A01K63/003 , A01K63/045 , A01K63/06 , H02K1/143 , H02K5/04 , H02K5/10 , H02K11/0094 , H02K16/00 , H02K21/185 , H02K47/20
摘要： Provided are a power generation apparatus and an aquarium equipment including the power generation apparatus. The power generation apparatus includes a water pump and a power generation induction coil. The water pump includes a stator, a rotor assembly, and an impeller. The rotor assembly is coupled to the impeller, the stator includes a U-shaped iron core and a coil winding wound around the U-shaped iron core. The coil winding is operative to be coupled to an external power source. The rotor assembly includes a rotating shaft and a permanent magnet rotor coupled to the rotating shaft. The power generation induction coil is wound around an exterior of the permanent magnet rotor and coupled to an electric device. The permanent magnet rotor is disposed at an open end of the U-shaped iron core. When the coil winding is energized, the permanent magnet rotor rotates relative to the power generation induction coil enabling the power generation induction coil to generate an induced current to power up the electric device.

9. 发明申请

US20190173357A1 GLOCKENSPIEL POWER GENERATOR 审中-公开
公开(公告)号：US20190173357A1
公开(公告)日：2019-06-06
申请号：US16211018
申请日：2018-12-05
申请人： Edward EnChow Lee , Marco A.V. Bitetto
发明人： Edward EnChow Lee , Marco A.V. Bitetto
IPC分类号： H02K7/18 , H02K7/116 , H02K5/04 , H02J7/00
CPC分类号： H02K7/1853 , H02J7/0042 , H02K5/04 , H02K7/116 , H02K7/1861 , H02K16/00
摘要： A power generator that enables electrical power generation from a cranking motion and subsequently transmits that energy to mobile devices, vehicles, or other electrically-powered items. The power generator includes a cranking mechanism, a casing, at least one energy-converting mechanism and a charging output. The cranking mechanism allows the user to input mechanical energy to the power generator. The casing conceals and protects the internal components of the power generator. The at least one energy-converting mechanism allows the power generator to convert mechanical energy, produced by the cranking mechanism, into electrical energy. The charging output allows the power generator to transfer the electrical energy, produced by the at least one energy-converting mechanism, to any device that runs on electricity such as, but not limited to, a mobile device or vehicle.

10. 发明申请

US20190068035A1 DUAL SHAFT INTEGRATED MOTOR 审中-公开
公开(公告)号：US20190068035A1
公开(公告)日：2019-02-28
申请号：US16074845
申请日：2017-07-18
申请人： NSK Ltd.
发明人： Kazunori KOIZUMI , Hayao WATANABE
IPC分类号： H02K16/02 , H02K7/00 , H02K7/08 , H02K11/21
CPC分类号： H02K16/02 , H02K1/141 , H02K7/003 , H02K7/085 , H02K7/088 , H02K11/022 , H02K11/21 , H02K11/225 , H02K16/00 , H02K21/12 , H02K21/14 , H02K21/22 , H02K24/00
摘要： A dual shaft integrated motor including inner and outer rotors independently rotatable and rotating in an identical pivotal direction, the inner and outer rotors each having an output shaft positioned on one end of the pivotal direction, the dual shaft integrated motor includes: a detection unit including a first detection unit detecting a rotation angle of the inner rotor, and a second detection unit detecting a rotation angle of the outer rotor; a bearing unit including a first bearing rotating in conjunction with the inner rotor, and a second bearing rotating in conjunction with the outer rotor; a stator core unit including a first core serving as a stator core of the inner rotor, and a second core serving as a stator core of the outer rotor; and a base to which the detection unit, the bearing unit, and the stator core unit are sequentially attached from the one end.

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