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公开(公告)号：US20240356407A1
公开(公告)日：2024-10-24
申请号：US18760045
申请日：2024-07-01
发明人： Shun NAKAYAMA , Yuji SASAKI , Yoshihito KATSU , Koji SAKOTA , Yoshikazu MINEDA
CPC分类号： H02K7/04 , F04D25/06 , F04D29/284 , H02K1/278 , H02K1/30 , H02K15/03 , H02K15/165 , F02M35/10
摘要： A rotor includes a shaft, a magnet located around the shaft, an inner sleeve located around the shaft and between the shaft and the magnet, and an end ring located around the inner sleeve and positioned adjacent to the magnet. The inner sleeve includes a holding portion having an inner diameter that surrounds and holds the shaft, and a gap forming portion including a first inner diameter that is larger than the inner diameter of the holding portion, such that the gap forming portion is spaced apart from the shaft. A part of the magnet is located on the holding portion. The end ring is located on the gap forming portion.
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公开(公告)号：US12119713B2
公开(公告)日：2024-10-15
申请号：US17769213
申请日：2020-12-24
申请人： AISIN CORPORATION
发明人： Shinya Osuka
摘要： A first shaft member of a shaft included in this rotor includes: a first large-diameter portion disposed radially inward of a rotor core; and a first small-diameter portion disposed on a first axial side relative to the rotor core. The first small-diameter portion is provided with a driving force transmitter to transmit a driving force, which is transmitted thereto from the rotor core, to a driving force transmission member. A portion of the first shaft member located on a second axial side is connected to a second shaft member of the shaft.
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公开(公告)号：US12070010B2
公开(公告)日：2024-08-27
申请号：US17959119
申请日：2022-10-03
申请人： Munters Corporation
发明人： Christopher A. Hause
IPC分类号： A01K1/00 , F04D27/00 , F24F13/10 , H02K1/2791 , H02K11/33 , F24F11/75 , F24F11/77 , H02K1/14 , H02K1/18 , H02K1/30 , H02K5/18 , H02P6/20
CPC分类号： A01K1/0047 , A01K1/0052 , F04D27/004 , H02K1/2791 , H02K11/33 , F24F11/75 , F24F11/77 , F24F13/10 , H02K1/148 , H02K1/187 , H02K1/30 , H02K5/18 , H02P6/20
摘要： A fan for use in agriculture includes a housing, a motor, a propeller, a damper, and a controller. The damper is connected to the housing and is movable between open positions and a fully closed position. The controller controls the motor to rotate in a first rotational direction to cause the propeller to generate airflow in a first airflow direction through the housing from an inlet to an outlet and, upon receiving an instruction to shut down, controls the motor to rotate in a second rotational direction, opposite to the first rotational direction, to cause the propeller to generate airflow in a second airflow direction, opposite to the first airflow direction, through the housing from the outlet to the inlet, before ceasing rotation.
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公开(公告)号：US12068639B2
公开(公告)日：2024-08-20
申请号：US17832315
申请日：2022-06-03
申请人： Black & Decker Inc.
发明人： Changxing Lu , Abraham Sanchez , Tong Zheng , Fulong Liu , Yeli Gu , David J. Smith , Shailesh P. Waikar
IPC分类号： H02K1/30 , H02K1/2733 , H02K7/14 , H02K15/03 , H02K29/00
CPC分类号： H02K1/30 , H02K1/2733 , H02K7/145 , H02K15/03 , H02K29/00
摘要： A brushless direct-current (BLDC) motor is provided. The motor includes a stator including a stator core, stator teeth, and windings; a rotor shaft disposed within the stator and extending along a longitudinal axis; and a rotor. The rotor includes a rotor core having a cylindrical body, a permanent magnet ring mounted on an outer surface of the cylindrical body with no intermediate adhesive therebetween, and metal sleeve securely fitted outside the permanent magnet ring. The metal sleeve includes a flange extending radially inwardly that covers an axial end of the permanent magnet ring and is bonded to the rotor core to secure the permanent magnet ring to the rotor core.
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公开(公告)号：US20240235301A1
公开(公告)日：2024-07-11
申请号：US18559357
申请日：2022-04-21
发明人： AKIRA YAMAGUCHI
IPC分类号： H02K1/30 , H02K1/2733 , H02K21/16
CPC分类号： H02K1/30 , H02K1/2733 , H02K21/16
摘要： A rotor includes a rotating shaft including an axis as a rotation center, a magnet having a cylindrical shape and disposed so as to surround the rotating shaft, and a spacer that is disposed between the rotating shaft and the magnet, includes a sleeve extending from a first end portion to a second end portion along the axis, and fixes the magnet to the rotating shaft via the sleeve.
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公开(公告)号：US12009702B2
公开(公告)日：2024-06-11
申请号：US17747799
申请日：2022-05-18
摘要： A permanent magnet generator (PMG) system can include a stator configured to output a voltage, and a rotor assembly configured to be magnetically coupled to the stator and to rotate relative to the stator to induce the voltage. The rotor assembly can be configured to passively attenuate the voltage output from the stator in response to acceleration of the rotor assembly at or above an impulse acceleration threshold.
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公开(公告)号：US11936312B2
公开(公告)日：2024-03-19
申请号：US16779829
申请日：2020-02-03
申请人： DENSO CORPORATION
发明人： Yuki Takahashi
IPC分类号： H02K1/27 , H01F1/22 , H02K1/16 , H02K1/18 , H02K1/276 , H02K1/278 , H02K1/30 , H02K3/12 , H02K3/28 , H02K15/03 , H02K15/12 , H02K21/14 , H02P21/10 , H02P21/22 , H02P27/12
CPC分类号： H02P21/10 , H01F1/22 , H02K1/16 , H02K1/18 , H02K1/276 , H02K1/2766 , H02K1/278 , H02K1/30 , H02K3/12 , H02K3/28 , H02K15/03 , H02K15/12 , H02K21/14 , H02P21/22 , H02P27/12 , H02K2213/03
摘要： A rotor of a rotary electric machine includes magnets arranged to face a winding. The magnets are movable relative to the winding upon the winding being energized. The magnets are arranged in a relative movement direction while magnetic polarities based on the magnets are alternately changed. Each magnet includes a first magnet member configured to generate magnet flux in accordance with a corresponding one of the polarities. The first magnet member has first magnetic orientations defined therein. Each magnet includes a second magnet member provided at a q-axis side end of the corresponding magnet located closer to a pole boundary. The second magnet member has second magnetic orientations defined therein. The second magnetic orientations intersect with the first magnetic orientations.
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公开(公告)号：US11916447B2
公开(公告)日：2024-02-27
申请号：US17832308
申请日：2022-06-03
申请人： Black & Decker Inc.
发明人： Tong Zheng , Yeli Gu , Fulong Liu , Changxing Lu , Abraham Sanchez , Shailesh P. Waikar , David J. Smith
摘要： A brushless direct-current (BLDC) motor is provided. The motor includes a stator including a stator core, stator teeth, and windings; a rotor shaft disposed within the stator and extending along a longitudinal axis; and a rotor. The rotor includes a rotor core including an inner body mounted on the rotor shaft and radial projections projecting outwardly from the inner body, a permanent magnet mounted on an outer end of the radial projections, and a mold structure formed in contact with the radial projections and configured to secure the permanent magnet to the rotor core.
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公开(公告)号：US11881757B2
公开(公告)日：2024-01-23
申请号：US17806399
申请日：2022-06-10
申请人： Dana Belgium N.V.
发明人： Louis Lambourg
摘要： Methods and systems are provided for providing cooling to an electric motor via direct spray cooling. In one example, a system may include a shaft including an oil conduit extending axially therein and a plurality of openings fluidically coupling the oil conduit to an external surface of the shaft; a rotor positioned coaxial with the shaft, an inner diameter of the rotor greater than an outer diameter of the shaft; and a gas-filled chamber bounded by an inner surface of the rotor and the external surface of the shaft, the gas filled chamber fluidically coupled to the oil conduit via the plurality of openings, and a pressure of a gas in the gas-filled chamber lower than a pressure of oil in the oil conduit.
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公开(公告)号：US20230421008A1
公开(公告)日：2023-12-28
申请号：US17747799
申请日：2022-05-18
摘要： A permanent magnet generator (PMG) system can include a stator configured to output a voltage, and a rotor assembly configured to be magnetically coupled to the stator and to rotate relative to the stator to induce the voltage. The rotor assembly can be configured to passively attenuate the voltage output from the stator in response to acceleration of the rotor assembly at or above an impulse acceleration threshold.
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