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81. 发明授权

US11362565B2 Electromagnetic automatic balancing device based on radial excitation 有权
公开(公告)号：US11362565B2
公开(公告)日：2022-06-14
申请号：US17561884
申请日：2021-12-24
申请人： BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY
发明人： Xin Pan , Hai-Qi Wu , Zhi-Nong Jiang , Jin-Ji Gao
IPC分类号： H02K7/04 , H02K5/04
摘要： An electromagnetic automatic balancing device based on radial excitation includes a shell, a rotatory ring, a stationary ring, a pair of connecting bearings and a controller. The rotatory ring includes two bilaterally symmetrical outer excitation magnetic rings, two bilaterally symmetrical inner excitation magnetic rings, two bilaterally symmetrical counterweight discs, two bilaterally symmetrical first counterweight blocks, two bilaterally symmetrical second counterweight blocks and a pair of rotatory-ring bearings. The stationary ring includes a stator, two bilaterally symmetrical excitation frameworks and two bilaterally symmetrical coils. The rotatory ring and the stationary ring are installed in the shell and connected through a pair of connecting bearings. The stator is installed in the center of the shell. The excitation frameworks are respectively fixed at both ends of the stator.

82. 发明授权

US11316402B2 Rotor and motor including same 有权
公开(公告)号：US11316402B2
公开(公告)日：2022-04-26
申请号：US16634716
申请日：2018-04-19
申请人： LG INNOTEK CO., LTD.
发明人： Jong Chan Lee , Byung Sam Lee
IPC分类号： H02K7/04 , H02K5/20 , H02K9/06
摘要： An embodiment relates to a rotor and a motor including the same, the rotor comprising: a rotor core; coils wound around the rotor core; covers respectively arranged at the upper part of the rotor core, wherein the cover includes: a main body disposed at the rotor core; a plurality of blades arranged on the upper surface of the main body; and at least two first protruding parts protruding in the axial direction from the upper surface of the main body. Therefore, the rotor and the motor including the same can perform a balance correction operation.

83. 发明申请

US20220085672A1 ROTOR OF AN ELECTRICAL MACHINE WITH IMPROVED STAGGERING OF THE ROTOR SEGMENTS 有权
公开(公告)号：US20220085672A1
公开(公告)日：2022-03-17
申请号：US17471917
申请日：2021-09-10
申请人： Valeo Siemens eAutomotive Germany GmbH
发明人： Sebastian Beetz , Boris Dotz , Christian Finger-Albert , David Förster
IPC分类号： H02K1/27 , H02K7/04 , B60K1/00
摘要： A rotor (3a . . . 3c) for an electrical machine (1) is described which comprises several rotor segments (10a . . . 10c, 10a′, 10a″, 10 . . . 10′″) which are arranged successively along the rotational axis (x) of the rotor (3a . . . 3c) and each comprise a rotor plate (11) or several rotor plates (11). Magnetic poles (A . . . D) of two adjacent rotor segments (10a . . . 10c, 10a′, 10a″, 10 . . . 10′″) are twisted relative to one another around the rotational axis (x) of the rotor (3a . . . 3c) by a staggering angle (α), wherein the staggering angle (α) is smaller than a polar angle (β) lying between two magnetic poles (A . . . D) of a rotor segment (10a . . . 10c, 10a′, 10a″, 10 . . . 10′″). The rotor (3a . . . 3c) comprises at least two first cutouts (12) which are arranged on a first hole circle (L1) around the rotational axis (x) of the rotor (3a . . . 3c) and are each twisted relative to one another by an angle (γ) which corresponds to the polar angle (β) minus or plus the staggering angle (α). Furthermore, an electrical machine (1) with such a rotor (3a . . . 3c), and a vehicle (18) with such an electrical machine (1), are described.

84. 发明授权

US11251679B2 Brushless direct currency (BLDC) motor and manufacturing method thereof 有权
公开(公告)号：US11251679B2
公开(公告)日：2022-02-15
申请号：US16711979
申请日：2019-12-12
申请人： COAVIS
发明人： Jung Kil Lee , Gyu Sang Yu , Dong Heon Mo , Hyun Tae Lee
IPC分类号： H02K7/04 , H02K1/27 , H02K15/16 , H02K21/16 , H02K15/03 , H02K7/14
摘要： Provided is a brushless direct currency (BLDC) motor and a manufacturing method thereof, and more particularly, a brushless direct currency (BLDC) motor including a rotor rotated to drive an impeller and capable of reducing a defective rate of the motor due to a rotational imbalance by controlling a shape of a magnet portion included in the rotor, and a manufacturing method thereof.

85. 发明授权

US11239713B2 Rotor structure of motor 有权
公开(公告)号：US11239713B2
公开(公告)日：2022-02-01
申请号：US16619226
申请日：2018-05-11
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
发明人： Naotaka Toida
IPC分类号： H02K1/27 , H02K1/28 , H02K7/04
摘要： A rotor structure of a motor includes a rotor core formed by laminating a plurality of laminated steel plates, a permanent magnet, and end plates. First holes and second holes are perforated alternately in a circumferential direction at equal intervals. The end plates have holes. The end plates are respectively fixed to end portions of the rotor core by fastening members inserted to the holes and the first holes. When the rotor core is divided into first laminated portions and a second laminated portion, in the second laminated portion, the plurality of the laminated steel plates adjacent to the first laminated portions are rotationally laminated in such a manner that the second holes are connected to the first holes.

86. 发明授权

US11235481B2 Oscillatory linear actuator and cutting device 有权
公开(公告)号：US11235481B2
公开(公告)日：2022-02-01
申请号：US15950837
申请日：2018-04-11
申请人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
发明人： Tomoaki Murakami , Noboru Kobayashi , Hiroki Inoue , Masashi Moriguchi
IPC分类号： B26B19/28 , H02K33/16 , H02K33/06 , H02K7/04 , H02K16/02 , H02K7/00
摘要： An oscillatory linear actuator includes: an output movable element which is reciprocated by a periodically varying magnetic field and performs work on an object; and a vibration absorbing movable element which is reciprocated at a phase opposite to a phase of the output movable element and reduces vibration of the oscillatory linear actuator. The vibration absorbing movable element is lighter in weight than the output movable element.

87. 发明申请

US20220021256A1 ROTOR OF AN ELECTRIC MACHINE 有权
公开(公告)号：US20220021256A1
公开(公告)日：2022-01-20
申请号：US17297654
申请日：2019-10-15
申请人： Robert Bosch GmbH
发明人： Daniel Kuehbacher , Felix Bensing , Jannik Stammler , Ralph Peter , Uwe Knappenberger
IPC分类号： H02K1/32 , H02K1/27 , H02K1/28 , H02K7/04
摘要： A rotor (1) of an electrical machine is already known, comprising a rotor body (3) which can be rotated about a rotor axis (2) and comprising several cooling ducts (5) which have a cooling duct opening (8.1, 8.2) at each of its ends, wherein one cooling duct opening (8.1) of one of the cooling ducts (5) is arranged radially further outside than the other cooling duct opening (8.2) of the same cooling duct (5). The driving force for generating an airflow through the cooling ducts (5) is generated by a radial offset between a channel of a hollow shaft of the rotor and one of the cooling duct openings of the rotor. In the rotor (1) according to the invention, the driving force for generating the airflow is generated solely in the cooling duct (5) in question of the rotor (1). According to the invention: the first cover element (10) covers the radially innermost partial cross-section of the cooling duct opening (8.1) in question with an edge section which is radially outward with respect to the rotor axis (2) and in each case leaves a radially outermost partial cross-section of the same cooling duct opening (8.1) uncovered as a cooling duct outlet (8.1); the other cooling duct opening (8.2) of the same cooling duct (5) is in each case a cooling duct inlet; an inflow which is axial with respect to the rotor axis (2) is provided in each case upstream of the cooling duct inlets (8.2); and the geometric centre of gravity of the cooling duct outlet (8.1) is in each case offset in the radial direction relative to the rotor axis (2) with respect to the geometric centre of gravity of the cooling duct inlet (8.2) of the same cooling duct (5).

88. 发明授权

US11205942B2 Motor including a balance weight and compressor provided with the same 有权
公开(公告)号：US11205942B2
公开(公告)日：2021-12-21
申请号：US16475279
申请日：2017-03-22
申请人： Mitsubishi Electric Corporation
发明人： Ryohei Uno , Koji Masumoto , Yuki Tamura , Kenjiro Motomura , Yusuke Nakagawa , Kei Iwata
IPC分类号： H02K1/28 , H02K15/16 , H02K15/03 , H02K1/27 , H02K1/18 , F04B17/03 , F04B35/04 , H02K7/04
摘要： A motor includes an annular core formed by stacking a plurality of electromagnetic steel sheets; end plates disposed at both ends of the core in an axial direction; a balance weight disposed on a side of one of the end plates, the side being opposite the core; and a spacer disposed between the one of the end plates and the balance weight, the spacer being configured to create a space between the one of the end plates and the balance weight. The motor is entirely fastened by allowing at least one of a plurality of rivets arranged in a circumferential direction of the core to pass through the core and the end plates in the axial direction, and allowing remaining at least one rivet to pass through the core, the end plates, the spacer, and the balance weight in the axial direction.

89. 发明申请

US20210384797A1 ROTOR FOR ROTARY ELECTRIC MACHINE, PROCESS FOR MANUFACTURING AND CORRESPONDING ROTARY ELECTRIC MACHINES 有权
公开(公告)号：US20210384797A1
公开(公告)日：2021-12-09
申请号：US17337271
申请日：2021-06-02
申请人： WEG EQUIPAMENTOS ELETRICOS S.A.
发明人： Cassiano Antunes CEZARIO , Dionei SCOTTINI , Emerson HAMERSCHMITT , Ramon Gomes DA SILVA , Rubens Fernando MISSIO
IPC分类号： H02K7/04 , H02K1/27 , H02K5/18 , H02K15/03 , H02K15/16
摘要： A rotor is provided with injected fixing bars having functional pins formed in a single piece and includes a bar and two or more functional pins. The functional pins include one or more fixing regions for tying of one or more rotor packages of plates of the rotor. A process is for manufacturing the rotor and a rotary electric machine can include the rotor.

90. 发明申请

US20210296960A1 ROTOR OF AN ELECTRIC MOTOR 有权
公开(公告)号：US20210296960A1
公开(公告)日：2021-09-23
申请号：US17204920
申请日：2021-03-17
申请人： Mahle International GmbH
发明人： Patrick Altherr
IPC分类号： H02K7/00 , H02K7/04 , H02K1/28
摘要： A rotor of an electric motor may include a basic shaft, a plurality of plate stacks, at least one balancing element structured and arranged to offset imbalances, and a drive element. The at least one balancing element and the drive element may be integrally provided as a one-piece, monolithic component.

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