-
公开(公告)号：US20190019611A1
公开(公告)日：2019-01-17
申请号：US16023547
申请日：2018-06-29
Applicant: FANUC CORPORATION
Inventor： Takuya Maeda , Chao Zhi
CPC classification number: H01F27/24 , H01F3/10 , H01F3/14 , H01F27/02 , H01F27/28 , H01F27/321 , H01F37/00
Abstract: A three-phase reactor according to an embodiment includes a first plate iron core and a second plate iron core disposed oppositely to each other; a plurality of cylindrical iron cores disposed between the first plate iron core and the second plate iron core orthogonally to the first plate iron core and the second plate iron core, the iron cores being disposed rotationally symmetrically with respect to an axis equidistant from central axes of the iron cores, as a rotation axis; and a plurality of coils each wound on each of the iron cores.
-
公开(公告)号：US20180068783A1
公开(公告)日：2018-03-08
申请号：US15667982
申请日：2017-08-03
Applicant: FANUC CORPORATION
Inventor： Takuya Maeda
CPC classification number: H01F27/346 , H01F3/14 , H01F27/04 , H01F27/24 , H01F27/263 , H01F27/266 , H01F27/28 , H01F27/2876
Abstract: A reactor includes a core body; a first end plate and a second end plate which sandwich and fasten the core body; and an axis portion which passes through the center of the core body and is supported by the first end plate and the second end plate. The center of the core body includes a region at which a magnetic field is not formed.
-
公开(公告)号：US20150102700A1
公开(公告)日：2015-04-16
申请号：US14509170
申请日：2014-10-08
Applicant: FANUC CORPORATION
Inventor： Takuya Maeda
CPC classification number: A61B5/0066 , A61B3/0025 , A61B3/102 , A61B2562/0233 , A61B2576/00 , G01B9/02044 , G01B9/02084 , G01B9/02091 , H02K1/16 , H02K1/24 , H02K1/2706 , H02K1/2773 , H02K29/03 , H02K2213/03
Abstract: An electric motor including a rotor including magnetic pole units and a stator including slots facing an outer peripheral surface of the rotor. Each of the magnetic pole units is bulged to an outside in a radial direction so that a waveform of a magnetic flux density generated from the rotor is a sine wave shape, and a concave part or convex part which is small enough to prevent changing of a waveform cycle of cogging torque determined by a least common multiple of the number of slots and the number of magnetic poles of the rotor, is formed at a central part in a circumferential direction of an outer peripheral surface in each of the magnetic pole units.
Abstract translation: 一种电动机，其包括具有磁极单元的转子和包括面向转子的外周面的槽的定子。 每个磁极单元沿径向凸出到外侧，使得从转子产生的磁通密度的波形为正弦波形，并且足够小以防止变化的凹部或凸部 在每个磁极单元中的外周面的圆周方向的中央部形成有由槽数的最小公倍数和转子的磁极数确定的齿槽转矩的波形周期。
-
公开(公告)号：US10734153B2
公开(公告)日：2020-08-04
申请号：US15265929
申请日：2016-09-15
Applicant: FANUC CORPORATION
Inventor： Takuya Maeda , Masatomo Shirouzu
IPC: H01F27/24 , H01F27/28 , H01F27/26 , H01F27/245 , H01F27/255
Abstract: A three-phase reactor includes: a central iron core; an outer peripheral iron core surrounding the central iron core; and at least three connecting units that magnetically connect the central iron core and the outer peripheral iron core to each other, in which each of the connecting units includes at least one connecting iron core, at least one coil wound around the connecting iron core, and at least one gap.
-
公开(公告)号：US10285594B2
公开(公告)日：2019-05-14
申请号：US15699005
申请日：2017-09-08
Applicant: FANUC CORPORATION
Inventor： Takuya Maeda
IPC: H02K1/27 , H02K21/12 , H02K21/14 , H02K29/03 , A61B3/00 , A61B5/00 , H02K1/16 , H02K1/24 , A61B3/10 , G01B9/02
Abstract: An electric motor including a rotor including magnetic pole units and a stator including slots facing an outer peripheral surface of the rotor. Each of the magnetic pole units is bulged to an outside in a radial direction so that a waveform of a magnetic flux density generated from the rotor is a sine wave shape, and a concave part or convex part which is small enough to prevent changing of a waveform cycle of cogging torque determined by a least common multiple of the number of slots and the number of magnetic poles of the rotor, is formed at a central part in a circumferential direction of an outer peripheral surface in each of the magnetic pole units.
-
Patent Agency Ranking
公开(公告)号：US20190088411A1
公开(公告)日：2019-03-21
申请号：US16127790
申请日：2018-09-11
Applicant: FANUC CORPORATION
Inventor： Chao Zhi , Takuya Maeda
Abstract: A three-phase transformer according to an embodiment includes a first plate iron core and a second plate iron core disposed opposite each other; a plurality of columnar iron cores disposed between the first plate iron core and the second plate iron core so as to be connected to the first plate iron core or the second plate iron core, the number of the columnar iron cores being an integer multiple of 3, the columnar iron cores being disposed rotation-symmetrically with respect to an axis equidistant from central axes of the columnar iron cores; and coils including a plurality of primary coils and a plurality of secondary coils, the number of the primary coils being an integer multiple of 3, the number of the secondary coils being an integer multiple of 3, the primary coils and the secondary coils being wound on the individual columnar iron cores.
-
公开(公告)号：US20180068776A1
公开(公告)日：2018-03-08
申请号：US15696296
申请日：2017-09-06
Applicant: FANUC CORPORATION
Inventor： Takuya Maeda , Masatomo Shirouzu , Takafumi Kajiya
IPC: H01F27/255 , H01F27/26 , H01F41/02 , H01F37/00 , H01F27/32
Abstract: A reactor includes a core body; a first end plate and a second end plate which sandwich and fasten the core body; and a plurality of axis portions disposed in the vicinity of an outer edge portion of the core body or outward of the core body and supported by the first end plate and the second end plate.
-
公开(公告)号：US20170154718A1
公开(公告)日：2017-06-01
申请号：US15354022
申请日：2016-11-17
Applicant: FANUC CORPORATION
Inventor： Takuya Maeda , Masatomo Shirouzu
IPC: H01F17/06
CPC classification number: H01F17/062 , H01F3/14 , H01F37/00
Abstract: A multi-phase reactor is configured to include a first core arranged at a center of the reactor; a plurality of second cores provided outside the first core and arranged so that each of magnetic paths with respect to the first core is in a loop shape; and one or a plurality of windings wound around each of the second cores. With this configuration, the multi-phase reactor capable of setting a constant value of inductance for each phase is provided.
-
公开(公告)号：US11728091B2
公开(公告)日：2023-08-15
申请号：US16864952
申请日：2020-05-01
Applicant: FANUC CORPORATION
Inventor： Masatomo Shirouzu , Takuya Maeda
CPC classification number: H01F37/005 , H01F3/14 , H01F27/324 , H01F37/00 , H02K11/33
Abstract: A three-phase reactor includes: an outer peripheral iron core; and at least three iron-core coils that come in contact with an inner surface of the outer peripheral iron core or are joined to the inner surface. The at least three iron-core coils include corresponding iron cores and corresponding coils wound around the iron cores, and gaps that can magnetically connect one iron-core coil of the at least three iron-core coils and an iron-core coil adjacent to the one iron-core coil to each other are formed between the one iron-core coil of the at least three iron-core coils and the iron-core coil adjacent to the one iron-core coil.
-
公开(公告)号：US10741319B2
公开(公告)日：2020-08-11
申请号：US16023547
申请日：2018-06-29
Applicant: FANUC CORPORATION
Inventor： Takuya Maeda , Chao Zhi
Abstract: A three-phase reactor according to an embodiment includes a first plate iron core and a second plate iron core disposed oppositely to each other; a plurality of cylindrical iron cores disposed between the first plate iron core and the second plate iron core orthogonally to the first plate iron core and the second plate iron core, the iron cores being disposed rotationally symmetrically with respect to an axis equidistant from central axes of the iron cores, as a rotation axis; and a plurality of coils each wound on each of the iron cores.
-
-
-
-
-
-
-
-
-
Search Results
35
records
(took 0.02 seconds)
