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公开(公告)号：US11476786B2
公开(公告)日：2022-10-18
申请号：US17236764
申请日：2021-04-21
摘要： An electric machine includes a stator having a stator winding disposed thereon. A rotor is electromagnetically exposed to the stator. A field winding and an induction winding are disposed on the rotor. A rectifier is electrically coupled to the induction winding and the field winding. Upon application of a voltage to the stator winding, the stator winding produces a first rotating magnetic field and a second rotating magnetic field that has a different spatial frequency than the first rotating magnetic field. The first rotating magnetic field interacts asynchronously with the induction winding to produce an alternating current in the induction winding. The rectifier changes the alternating current to a direct current that is supplied to the field winding. The field winding interacts synchronously with the second rotating magnetic field.
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公开(公告)号：US11218062B2
公开(公告)日：2022-01-04
申请号：US16682191
申请日：2019-11-13
申请人： Enedym Inc.
发明人： Yasemin Oner , Berker Bilgin , Ali Emadi
摘要： A three-phase switched reluctance machine has a rotor, a first stator and a second stator. The rotor, first stator and second stator are coaxially and concentrically disposed. The rotor and both the first stator and second stator have corresponding poles. Only one of the stators has coils wound about its poles, while the other stator does not have any coils. A defined relationship between the number of rotor poles, the number of stator poles on the first stator and the number of stator poles on the second stator may improve the torque quality of the switched reluctance machine.
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公开(公告)号：US20210281152A1
公开(公告)日：2021-09-09
申请号：US17261305
申请日：2019-07-04
发明人： Markus HEER , Domenik HETTEL
IPC分类号： H02K19/12 , H02K15/095 , H02K3/52
摘要： An electric motor includes a rotor and a stator, the stator having multiple coils, each coil having two coil connections, the stator in particular having multiple stator segments, and each stator segment having precisely one coil, the coils being connected to one another with the aid of a wiring unit, the wiring unit having a carrier part for accommodating multiple wiring elements set apart from one another.
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公开(公告)号：US11050331B2
公开(公告)日：2021-06-29
申请号：US16392101
申请日：2019-04-23
申请人： EXEDY CORPORATION
摘要： A brushless winding field rotational electric machine includes: a stator, held to a case, including an alternating-current coil configured to generate a rotation magnetic field by alternating current; a field core, held to the case, including a field coil to be excited by direct current; and a rotor on an outer periphery of a rotation member and rotatably held about a rotational axis relative to the stator and field coil. The field coil includes a plurality of coil winding layers stacked in a radial direction of the rotational axis. A cross-sectional area along an axial direction of the rotational axis, of a coil winding layer closest to the rotational axis in the radial direction of the rotational axis is smaller than a cross-sectional area along the axial direction of the rotational axis, of a coil winding layer farthest from the rotational axis in the radial direction of the rotational axis.
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公开(公告)号：US20200251940A1
公开(公告)日：2020-08-06
申请号：US16778068
申请日：2020-01-31
申请人： DENSO CORPORATION
发明人： Masahiro SEGUCHI
摘要： A field coil type rotating electric machine includes a field coil having a serially-connected coil section pair consisting of first and second coil sections, a diode having its cathode and anode respectively connected to opposite ends of the serially-connected coil section pair, a rotating shaft, and a rotor having main pole portions radially protruding from a rotor core. In the rotating electric machine, there are formed both a series resonance circuit including the first coil section and at least one capacitor and a parallel resonance circuit including the second coil section and the at least one capacitor. Electronic components electrically connected with the field coil, which include the diode and the at least one capacitor, are arranged so that an overall center of gravity of all the electronic components is located closer than each of centers of gravity of the electronic components to a central axis of the rotating shaft.
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公开(公告)号：US10720819B2
公开(公告)日：2020-07-21
申请号：US15561542
申请日：2016-04-06
申请人： ENEDYM INC.
IPC分类号： H02K19/10 , H02K3/28 , H02K15/16 , H02K9/02 , H02K1/24 , H02K1/14 , H02K15/02 , H02K15/095 , H02K19/12
摘要： A switched reluctance machine has a stator core salient with stator poles disposed concentrically with a rotor that is salient with rotor poles. A plurality of coil windings are wound about the stator core so that a pair of windings are adjacent each of the stator poles. The pair of coil windings induces magnetic flux in the adjacent stator poles and the rotor rotates to align the rotor poles with the stator poles having the induced magnetic flux. The rotor is rotatable at high speeds of up to 50,000 RPM and the coil windings can be directly cooled.
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公开(公告)号：US10523096B2
公开(公告)日：2019-12-31
申请号：US15671344
申请日：2017-08-08
发明人： Hao Huang , Xiaochuan Jia , Joshua Tyler Mook
IPC分类号： H02K15/02 , H02K1/18 , B32B15/08 , H02K1/14 , H02K1/16 , H02K1/02 , H02K3/50 , H02K3/12 , H02K5/04 , H02K19/12 , H02K9/197 , H02K15/00 , H02K3/04
摘要： A method for manufacturing a stator assembly for an electrical machine includes printing a stator core. The method also includes printing a first part of a stator winding. In addition, the method includes coupling the first part of the stator winding to the stator core. The method also includes printing a second part of the stator winding onto the first part of the stator winding to form the stator assembly. In particular, coupling the first part of the stator winding to the stator core precedes printing the second part of the stator winding onto the first part of the stator winding.
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公开(公告)号：US10256762B2
公开(公告)日：2019-04-09
申请号：US15634723
申请日：2017-06-27
摘要： A method includes controlling a first power output to an electric machine during a transient event. Controlling the first power output includes measuring values of the first power output provided to the electric machine during the transient event, receiving an estimated speed input of the electric machine, determining adjustment commands to compensate the first power output for the transient event of the electric machine, generating switch commands for gate drives of a variable frequency drive (VFD) based at least in part on the adjustment commands, and modifying the first power output during the transient event based on the switch commands.
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公开(公告)号：US10090742B2
公开(公告)日：2018-10-02
申请号：US15166408
申请日：2016-05-27
申请人： DENSO CORPORATION
发明人： Shin Kusase
摘要： A rotating electric machine includes at least one multi-phase coil, at least one armature core having the at least one multi-phase coil wound thereon, and at least one rotor rotatably disposed and having a plurality of magnetic poles facing the at least one armature core. The at least one multi-phase coil has at least one coil end part protruding from the at least one armature core and surrounded by at least one magnetic circuit formed in the rotating electric machine. There are a plurality of gaps formed between the at least one armature core and the at least one rotor.
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公开(公告)号：US20180083519A1
公开(公告)日：2018-03-22
申请号：US15561542
申请日：2016-04-06
申请人： McMaster University
CPC分类号： H02K19/103 , H02K1/148 , H02K1/246 , H02K3/28 , H02K9/02 , H02K15/022 , H02K15/095 , H02K15/165 , H02K19/12
摘要： A switched reluctance machine has a stator core salient with stator poles disposed concentrically with a rotor that is salient with rotor poles. A plurality of coil windings are wound about the stator core so that a pair of windings are adjacent each of the stator poles. The pair of coil windings induces magnetic flux in the adjacent stator poles and the rotor rotates to align the rotor poles with the stator poles having the induced magnetic flux. The rotor is rotatable at high speeds of up to 50,000 RPM and the coil windings can be directly cooled.
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