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公开(公告)号：US11462955B2
公开(公告)日：2022-10-04
申请号：US16555510
申请日：2019-08-29
发明人： Yasuhito Ueda , Hiroshi Takahashi
摘要： An electric rotating machine according to an embodiment includes a stator, and a rotor that is rotatable about a rotational center. The stator includes a winding having an annular shape with the rotational center, a first core, and a second core. The first core surrounds a part of the winding, and has a pole face to which a magnetic flux is input in a first direction, and a pole face from which the magnetic flux is output in the first direction. The second core surrounds a part of the winding, and has a pole face to which a magnetic flux is input in a second direction, and a pole face from which the magnetic flux is output in the second direction. The rotor is positioned spaced from the first core and the second core, and is rotatable about the rotational center, relatively with respect to the stator.
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公开(公告)号：US10483835B2
公开(公告)日：2019-11-19
申请号：US15993684
申请日：2018-05-31
申请人： FANUC CORPORATION
发明人： Akira Nishifukumoto
摘要： A linear motor includes a magnet plate on which magnets of different polarity are alternately arranged along a drive direction, and an armature having a core serving as a main body and a coil attached to the core. The magnet plate and the armature are made to relatively move along an arrangement direction of the magnets, by way of thrust produced between the magnet plate and the armature. The magnet plate has a non-thrust region that extends along an arrangement direction of the magnets, and does not contribute to the thrust. The core of the armature at least includes a plurality of main teeth to which the coil is attached. The main teeth are not provided in a region opposing the non-thrust region of the magnet plate.
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公开(公告)号：US10483814B2
公开(公告)日：2019-11-19
申请号：US14782265
申请日：2014-04-03
发明人： Ralf Kelling
摘要： A synchronous generator rotor pole pack having a plurality of pole pack laminations which are offset with respect to one another, a pole shank, a pole head with at least three pole head sections is provided. A front edge of each of the at least three pole head sections is arranged at an angle with respect to the pole shank.
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公开(公告)号：US10461592B2
公开(公告)日：2019-10-29
申请号：US15487411
申请日：2017-04-13
IPC分类号： H02K1/20 , H02K16/04 , H02K5/16 , H02K1/27 , H02K1/14 , H02K1/02 , H02K1/06 , H02K21/24 , H02K7/08 , H02K1/08 , H02K1/24 , H02K41/03 , B25J9/12 , H02K3/04 , H02K5/04 , H02K9/00 , H02K15/04 , H02K9/02 , H02K1/16 , H02K3/12 , B25J15/08 , B25J17/00 , H02K21/00 , B25J9/00 , B25J15/00 , B25J15/02 , B25J19/00 , H02K21/14 , H02K21/22 , H02K1/32 , H02K3/24 , H02K3/26 , H02K5/18 , H02K9/19 , H02K19/10 , H02K7/14
摘要： An electric motor has a first carrier having an array of electromagnetic elements and a second carrier having electromagnetic elements defining magnetic poles. The first and second carriers each define an axis. An airgap is formed between the first and second carriers when in an operational position. An inner thrust bearing connects the first and second carriers and is arranged to allow relative rotary motion of the carriers. An outer thrust bearing connects the first and second carriers and is arranged to allow relative rotary motion of the carriers. The electromagnetic elements of each of the first and second carriers are arranged radially inward of the outer thrust bearing and radially outward of the inner thrust bearing. The inner thrust bearing and the outer thrust bearing are arranged to maintain the airgap against a magnetic attraction of the electromagnetic elements of the first and second carriers.
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公开(公告)号：US10432051B2
公开(公告)日：2019-10-01
申请号：US15210626
申请日：2016-07-14
申请人： DENSO CORPORATION
发明人： Takashi Hirabayashi
IPC分类号： H02K1/00 , H02K3/04 , H02K1/08 , H02K1/14 , H02K23/26 , H02K3/18 , H02K15/04 , H02K5/14 , H02K13/00
摘要： A DC motor includes a cylindrical yoke constituting a magnetic path, pole cores fixed to an inner periphery of the yoke so as to be arranged at even intervals along a circumferential direction of the yoke, and a field conductor that generates a magnetic field to magnetize the pole cores when supplied with a current. The field conductor includes inter-core conductors each of which extends in an axial direction of the yoke so as to be disposed between circumferentially adjacent pole cores. Each of the inter-core conductors is formed by integrating a first conductor part that generates a magnetic field to be applied to one of the circumferentially adjacent pole cores and a second conductor part that generates a magnetic field to be applied to the other of the circumferentially adjacent pole cores.
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公开(公告)号：US10355575B2
公开(公告)日：2019-07-16
申请号：US14925023
申请日：2015-10-28
申请人： FANUC CORPORATION
发明人： Takuya Maeda
摘要： A linear motor includes a plurality of magnets arranged at equal intervals, and an armature arranged opposite to the magnets and including an armature core having a plurality of teeth extending toward the magnets. The teeth include a first tooth located at one end in the thrust direction and a second tooth located at the other end on the opposite side. The first tooth and the second tooth have different dimensions or shapes so as to reduce cogging force generated due to the structure of the armature core at the ends in the thrust direction.
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公开(公告)号：US20190081542A1
公开(公告)日：2019-03-14
申请号：US16124790
申请日：2018-09-07
发明人： MICHAL BIELEN , Jakub SOBOL
摘要： There is provided a pole-piece for a torque motor, the pole-piece comprising a first section formed separate from a second section, wherein the first section is held in position with respect to the second section using one or more rigid members.
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公开(公告)号：US10164485B2
公开(公告)日：2018-12-25
申请号：US15126114
申请日：2015-03-06
发明人： Karsten Laing
摘要： A stator-rotor device for an electrical machine, in particular an electric motor, includes a stator and a rotor, wherein the stator-rotor device pole cores provided with windings comprise pole shoes and magnets associated therewith. The pole shoes are connected via a first surface to a respective pole core and have a second surface that is facing towards the magnets. The pole shoes cooperate magnetically with the magnets and are separated from the latter by an air gap. The pole shoes and the magnets engage with one another in an engagement direction in such a way that in each case a section of the other component—magnet or pole shoes—is arranged lying opposite the respectively engaging component—pole shoe or magnet—transverse to the engagement direction on two sides facing away from one another. The second surface is larger than the first surface.
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公开(公告)号：US20180367020A1
公开(公告)日：2018-12-20
申请号：US15993684
申请日：2018-05-31
申请人： FANUC CORPORATION
发明人： Akira NISHIFUKUMOTO
CPC分类号： H02K41/031 , H02K1/08
摘要： A linear motor includes a magnet plate on which magnets of different polarity are alternately arranged along a drive direction, and an armature having a core serving as a main body and a coil attached to the core. The magnet plate and the armature are made to relatively move along an arrangement direction of the magnets, by way of thrust produced between the magnet plate and the armature. The magnet plate has a non-thrust region that extends along an arrangement direction of the magnets, and does not contribute to the thrust. The core of the armature at least includes a plurality of main teeth to which the coil is attached. The main teeth are not provided in a region opposing the non-thrust region of the magnet plate.
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公开(公告)号：US10119459B2
公开(公告)日：2018-11-06
申请号：US14887804
申请日：2015-10-20
申请人： BorgWarner Inc.
发明人： Brock Fraser
IPC分类号： H02K7/08 , F02B39/14 , F02B39/10 , F01D25/18 , F01D5/02 , F01D25/16 , F04D29/28 , F04D25/06 , F01D25/24 , H02K1/08 , H02K1/20
摘要： A number of variations may include a product comprising: an electrified turbocharger comprising: an electric motor surrounding a portion of a shaft constructed and arranged to selectively drive the shaft, wherein the electric motor further comprises a stator comprising a lamination stack; a housing surrounding the electric motor, wherein the housing includes a plurality of channels constructed and arranged to lubricate a first bearing; and wherein the lamination stack is constructed and arranged to include at least one conduit to pass oil through the electric motor to a second bearing.
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