公开(公告)号：US09985483B2

公开(公告)日：2018-05-29

申请号：US15163364

申请日：2016-05-24

申请人： ABB Technology AG

发明人： Wen Ouyang ,  Varagur Ramanan

IPC分类号： H02K1/06 ,  H02K1/14

CPC分类号： H02K1/146 ,  H02K3/12 ,  H02K7/1823 ,  H02K21/22 ,  H02K2213/03

摘要： One embodiment is a unique Vernier machine comprising a rotor and a stator. The rotor comprises a back portion and a plurality of permanent magnets. The stator comprises a plurality of ferromagnetic arm structures, a plurality of ferromagnetic pole structures extending from each of the ferromagnetic arm structures in a direction toward the permanent magnets, and a plurality of conductive windings disposed about respective ones of the plurality of ferromagnetic arm structures. The ferromagnetic pole structures are structured to collect magnetic flux from the permanent magnets. The ferromagnetic pole structures of each of said ferromagnetic arm structures are spaced apart from one another according to a non-uniform pattern such that the ferromagnetic pole structures of a given ferromagnetic arm structure have substantially the same angular position relative to the permanent magnets radially opposite from the ferromagnetic pole structures of the given ferromagnetic arm structure.

公开(公告)号：US20180145565A1

公开(公告)日：2018-05-24

申请号：US15356629

申请日：2016-11-20

申请人： Michael Pozmantir ,  Sergey Pozmantir

发明人： Michael Pozmantir ,  Sergey Pozmantir

IPC分类号： H02K11/215 ,  H02K1/02 ,  H02K1/14 ,  H02K1/27 ,  H02K3/28 ,  H02K7/14 ,  H02K11/33 ,  F04D19/00 ,  F04D25/06

CPC分类号： H02K11/215 ,  F04D19/002 ,  F04D25/0646 ,  F04D25/068 ,  F04D25/08 ,  H02K1/02 ,  H02K1/146 ,  H02K1/2706 ,  H02K1/2786 ,  H02K3/28 ,  H02K7/14 ,  H02K11/33 ,  H02K21/16 ,  H02K21/222 ,  H02K2201/03 ,  H02P1/00

摘要： A brushless DC motor utilizing a single pole double throw reed switch as a rotor position sensor. In one embodiment, the motor has a four-pole internal stator with bifilar windings providing alternating polarization for each subsequent pole, and a hollow outer rotor with radially magnetized ring-shaped permanent magnet. The rotor magnet has magnetically uninterrupted four-pole torque generating surface and incorporates features to interact with the reed switch. A non-uniform air gap between the stator poles and an inner surface of the rotor magnet allows generating a complementary reluctance torque between the energization pulses. The motor includes means to limit the electric current through the reed switch.

公开(公告)号：US09948151B2

公开(公告)日：2018-04-17

申请号：US14479580

申请日：2014-09-08

申请人： MINEBEA CO., LTD.

发明人： Akio Ando ,  Hirotaka Sato ,  Toshiyuki Nishikata

IPC分类号： H02K21/22 ,  H02K1/14 ,  H02K1/18 ,  H02K7/09

CPC分类号： H02K1/146 ,  H02K1/187 ,  H02K7/09 ,  H02K21/22 ,  H02K21/222

摘要： An outer rotor type brushless motor of the present invention comprises: a rotor portion having a rotor frame, a shaft, and a rotor magnet; a bearing housing; a stator portion facing the rotor magnet and having a stator core, a plurality of first salient pole portions extending toward the rotor magnet from the stator core, an insulation surrounding the first salient pole portion, and a winding around the first salient pole portion through the insulation; and a torque holding portion provided on an inner side of the outer circumference portion of the rotor frame and an outer circumference of the bearing housing, and having a plurality of second salient pole portions disposed coaxially with the stator core and extending toward the rotor magnet, where the first salient pole portions and the second salient pole portions are provided in different numbers.

公开(公告)号：US20180091031A1

公开(公告)日：2018-03-29

申请号：US15711681

申请日：2017-09-21

申请人： Fu-Tzu HSU ,  Chieh-Sen TU

发明人： Fu-Tzu HSU ,  Chieh-Sen TU

IPC分类号： H02K19/24 ,  H02K1/24 ,  H02K1/14 ,  H02K19/32 ,  H02K11/04

CPC分类号： H02K19/24 ,  H02K1/146 ,  H02K1/246 ,  H02K11/046 ,  H02K19/32 ,  H02P9/02

摘要： A reluctance generator includes a circular stator made by silicon steel sheets and amorphous metal, first and second exciting coils, first and second outputting coils, and a rotator disposed in the stator. The stator includes four projecting poles. Two opposite ones and the other two opposite ones of the projecting poles are respectively formed with first and second teeth at distal ends thereof. The first exciting coil, the first outputting coil, the second exciting coil and the second outputting coil are in sequence and each wound around the stator between respective two adjacent ones of the projecting poles. When the rotator rotates, the first and second teeth are alternately aligned with third teeth that surround the rotator.

公开(公告)号：US09929623B2

公开(公告)日：2018-03-27

申请号：US14567079

申请日：2014-12-11

申请人： The Boeing Company

发明人： Robert J. Atmur

IPC分类号： H02K7/116 ,  H02K7/06 ,  H02K41/06 ,  H02K3/28 ,  H02K1/14

CPC分类号： H02K7/06 ,  H02K1/146 ,  H02K3/28 ,  H02K7/116 ,  H02K41/065

摘要： A method and apparatus for operating a reluctance motor. The apparatus comprises a stator and a plate. The stator includes a plurality of electromagnetic coils having an overlapped configuration. Applying multi-phase current to the plurality of electromagnetic coils generates a magnetic field. The plate forms a virtual pole when a portion of the plate contacts the stator in response to the magnetic field. Rotating the magnetic field about a center axis through the stator rotates the virtual pole about the center axis.

公开(公告)号：US09929607B2

公开(公告)日：2018-03-27

申请号：US12864423

申请日：2009-01-23

申请人： Yoshihiro Kataoka ,  Yasukazu Nabetani ,  Kazuo Ida ,  Azusa Ujihara

发明人： Yoshihiro Kataoka ,  Yasukazu Nabetani ,  Kazuo Ida ,  Azusa Ujihara

IPC分类号： H02K1/14 ,  F04B39/02 ,  F04C23/00 ,  F04C23/02 ,  F04C29/02 ,  H02K1/20 ,  H02K7/14 ,  H02K9/19 ,  F04C18/356 ,  F04C29/04

CPC分类号： H02K1/146 ,  F04B39/0238 ,  F04C18/356 ,  F04C23/008 ,  F04C23/02 ,  F04C29/028 ,  F04C29/045 ,  F04C2240/40 ,  H02K1/20 ,  H02K7/14 ,  H02K9/19 ,  H02K2213/03

摘要： A compressor includes a hermetic container, a compression mechanism section disposed in the hermetic container, and a motor disposed in the hermetic container to drive the compression mechanism section. The motor has a rotor and a stator disposed so as to surround an outer periphery of the rotor. The stator includes a stator core and oil passage grooves. The stator core has a hollow circular cylindrical section and a plurality of circumferentially arranged teeth protruding radially inward from an outer peripheral surface of the hollow circular cylindrical section. The oil passage grooves are located radially outside of the teeth. The oil passage grooves are formed by cutting an outer peripheral surface of the hollow circular cylindrical section.

公开(公告)号：US20180083497A1

公开(公告)日：2018-03-22

申请号：US15826475

申请日：2017-11-29

申请人： Francecol Technology

发明人： François Bernot ,  Victor Bernaola ,  Jonh Edwin Morales Morales

IPC分类号： H02K1/14 ,  H02K19/06 ,  H02K19/14

CPC分类号： H02K1/145 ,  H02K1/146 ,  H02K19/06 ,  H02K19/14 ,  H02K2201/12

摘要： Disclosed is an asynchronous rotating electric machine in which none of the electrical windings is rotating, said machine having a homopolar compound structure. The machine comprises: a rotor including magnetic flux return parts; and a stator formed by a pair of armatures and a magnetic wedge connecting the armatures and providing the magnetic flux in the direction of the axis of rotation, an annular induction coil being supplied with alternating current and housed between the air gap and the wedge, and one or two armature coils being received by one or both of the armatures generating an alternating magnetic flux.

公开(公告)号：US09899884B2

公开(公告)日：2018-02-20

申请号：US14749895

申请日：2015-06-25

申请人： Nidec Corporation

发明人： Shigeharu Sumi

IPC分类号： H02K1/08 ,  H02K1/14

CPC分类号： H02K1/08 ,  H02K1/146

摘要： A motor armature includes a core including a stack of electromagnetic steel sheets, a tooth portion extending in a radial direction of the motor, and a conductive wire that is wound around the tooth portion in a circumferential direction. First recessed portions extending in the radial direction are located in a surface of the tooth portion of each of the electromagnetic steel sheets of the core.

公开(公告)号：US09876399B2

公开(公告)日：2018-01-23

申请号：US14654651

申请日：2013-12-11

申请人： Robert Bosch GmbH

发明人： Christian Aumann

IPC分类号： H02K1/18 ,  H02K3/38 ,  H02K1/14 ,  H02K3/52 ,  H02K1/16

CPC分类号： H02K1/18 ,  H02K1/146 ,  H02K1/165 ,  H02K3/38 ,  H02K3/522 ,  H02K2201/06

摘要： The invention concerns a stator for an electric machine, comprising a plate stack comprising a plurality of superposed stator plates, the plate stack being delimited at the ends by cover plates and an insulating plate being disposed on at least one cover plate in the plate stack, the insulating plate interlocking with the adjacent cover plate.

公开(公告)号：US09859777B2

公开(公告)日：2018-01-02

申请号：US14714431

申请日：2015-05-18

申请人： Wisconsin Alumni Research Foundation

发明人： Bulent Sarlioglu ,  Ju Hyung Kim ,  Yingjie Li

IPC分类号： H02K1/14 ,  H02K21/44 ,  H02K16/02 ,  H02K16/04 ,  H02K1/17 ,  H02K3/28

CPC分类号： H02K21/44 ,  H02K1/146 ,  H02K1/17 ,  H02K3/28

摘要： An electric machine includes a rotor, a first and second stator, a first and second plurality of permanent magnets, a first and second winding, a third and fourth winding. The first stator and the second stator are mounted axially relative to the rotor. A first permanent magnet and a second permanent magnet of the first plurality of permanent magnets have opposite polarities. A first permanent magnet and a second permanent magnet of the second plurality of permanent magnets have opposite polarities. The first winding, the second winding, the third winding, and the fourth winding are connected in series. An absolute value of an angle offset between the first winding and the third winding and between closest poles of the first plurality of poles and the second plurality of poles is 180 electrical degrees.