公开(公告)号：US11966184B2

公开(公告)日：2024-04-23

申请号：US17673300

申请日：2022-02-16

申请人： CANON KABUSHIKI KAISHA

发明人： Junya Takatsu ,  Junichi Hirota

IPC分类号： G03G15/00 ,  H02K1/2753 ,  H02K3/18 ,  H02P21/22 ,  H02P25/03 ,  H02P27/08

CPC分类号： G03G15/5008 ,  H02P21/22 ,  H02P25/03 ,  H02K1/2753 ,  H02K3/18 ,  H02P27/08

摘要： One aspect is an image forming apparatus including a motor that drives a first member, a second member, a movement member that moves between a first position where the first and second members contact and a second position where the first and second members are separated, and a controller that receives an instruction to start a print job for forming an image on a recording medium, and executes an initial operation for determining a phase of a rotor of the motor in a stopping state of the rotor based on current flowing through a coil of the motor by supplying current to the coil in the stopping state in a state where the movement member is located at the first position, to control the current supplied to the coil to rotate the rotor in the stopping state based on the phase determined in the initial operation.

公开(公告)号：US20180226849A1

公开(公告)日：2018-08-09

申请号：US15943353

申请日：2018-04-02

申请人： Siemens Aktiengesellschaft

发明人： Andreas Männl

IPC分类号： H02K1/27

CPC分类号： H02K1/278 ,  H02K1/2706 ,  H02K1/274 ,  H02K1/2753 ,  H02K2201/06

摘要： A laminated core arrangement for an electric machine includes a laminated core having at least two part cores which are arranged in an axial direction. Each of the part cores has a plurality of polygonal individual sheets, with at least one of the individual sheets being round and disposed between the part cores. The at least one round individual sheet has a diameter which is less than or equal to an inner circle of the polygonal individual sheets. Permanently-excited magnets are disposed around a circumference of the laminated core.

公开(公告)号：US20180219438A1

公开(公告)日：2018-08-02

申请号：US15758481

申请日：2015-11-18

申请人： Mitsubishi Electric Corporation

发明人： Tomoaki OIKAWA ,  Mineo YAMAMOTO ,  Hiroyuki ISHII ,  Hiroki ASO ,  Junichiro OYA ,  Yuto URABE ,  Takaya SHIMOKAWA ,  Koji YABE

IPC分类号： H02K1/27

CPC分类号： H02K1/2753 ,  F24F1/0018 ,  F24F13/24 ,  H02K1/27 ,  H02K1/276 ,  H02K21/16 ,  H02K2213/03

摘要： An electric motor includes a stator and a consequent-pole-type rotor including an annular rotor core disposed on an inner side of the stator and a plurality of permanent magnets disposed inside the rotor core and arrayed in a circumferential direction of the rotor core. The rotor core includes at least one slit provided inside the rotor core and disposed on an outer side of each of the permanent magnets in a radial direction of the rotor core, and at least one slit provided on an outer circumferential surface of the rotor core and disposed between the permanent magnets adjacent to each other.

公开(公告)号：US20180069445A1

公开(公告)日：2018-03-08

申请号：US15561188

申请日：2016-04-15

申请人： AISIN AW CO., LTD.

发明人： Kiyotaka KOGA ,  Shingo HASHIMOTO ,  Shingo SATO

IPC分类号： H02K3/12 ,  H02K1/27 ,  H02K1/32 ,  H02K3/28 ,  H02K9/19

CPC分类号： H02K3/12 ,  H02K1/2753 ,  H02K1/32 ,  H02K3/28 ,  H02K3/48 ,  H02K9/19 ,  H02K15/0031 ,  H02K15/066 ,  H02K15/12

摘要： A rotating electrical machine that includes a rotor core; a stator core disposed so as to face the rotor core in a radial direction and including a plurality of teeth and a plurality of slots each located between adjacent ones of the teeth; and a concentric coil formed by concentrically winding a wire, and including a slot accommodated portion placed in the slot of the stator core and a coil end portion projecting in an axial direction from the stator core, wherein of the slot accommodated portion of the concentric coil, an axial end of the slot accommodated portion located on a side facing the rotor core is located closer to an outside in the radial direction than an axial middle part of the slot accommodated portion located on the side facing the rotor core.

公开(公告)号：US20180048196A1

公开(公告)日：2018-02-15

申请号：US15234679

申请日：2016-08-11

申请人： HIWIN MIKROSYSTEM CORP.

发明人： Jhen Nan KUO ,  Li-Wei ZHENG ,  Ming Hung HSIEH

IPC分类号： H02K1/27

CPC分类号： H02K1/2766 ,  H02K1/02 ,  H02K1/27 ,  H02K1/2733 ,  H02K1/2753 ,  H02K2213/03

摘要： The present invention provides a permanent magnet motor, in which three holes, including a middle hole and side holes located on two sides of the middle hole, are disposed in a magnetic island of a rotor, the middle hole and the side holes satisfying specific conditions respectively, thereby achieving an optimal cogging reduction efficacy.

公开(公告)号：US20180019693A1

公开(公告)日：2018-01-18

申请号：US15647597

申请日：2017-07-12

申请人： Konica Minolta, Inc.

发明人： Daichi SUZUKI ,  Yuta TACHIBANA ,  Hiroyuki YOSHIKAWA ,  Yasuhiro KOIDE

IPC分类号： H02P21/14 ,  G01K7/16 ,  H02K17/14 ,  H02K1/27 ,  H02K19/32 ,  H02K19/12

CPC分类号： H02P21/26 ,  G01K7/16 ,  G03G21/16 ,  H02K1/2753 ,  H02K1/2786 ,  H02K17/14 ,  H02K19/12 ,  H02K19/32 ,  H02P6/17 ,  H02P21/141 ,  H02P21/18 ,  H02P25/022 ,  H02P29/64 ,  H02P29/662

摘要： A controller for a permanent magnet synchronous motor includes an estimating portion configured to determine an estimated value of a rotational speed of the rotor and an estimated value of a position of magnetic poles of the rotor based on a value of the current detected by the current detector and a parameter value indicating an interlinkage magnetic flux caused by the permanent magnet across the winding; a control unit configured to control the drive portion to cause the rotating magnetic field based on the estimated value of the rotational speed and the estimated value of the position of the magnetic poles; and a correction portion configured to correct the parameter value indicating the interlinkage magnetic flux based on correction information, the correction information being determined based on a temperature of the winding and a relationship between the temperature of the winding and a temperature of the permanent magnet.

公开(公告)号：US09853509B2

公开(公告)日：2017-12-26

申请号：US14404416

申请日：2012-05-28

申请人： Yukinari Fujisawa ,  Masataka Yahara ,  Hiroshi Nagase ,  Fumio Tajima ,  Yoshihiro Yamaguchi

发明人： Yukinari Fujisawa ,  Masataka Yahara ,  Hiroshi Nagase ,  Fumio Tajima ,  Yoshihiro Yamaguchi

IPC分类号： H02K1/27

CPC分类号： H02K1/2766 ,  H02K1/27 ,  H02K1/272 ,  H02K1/274 ,  H02K1/2753 ,  H02K1/276 ,  H02K1/2773

摘要： Torque is improved in a composite torque rotating electric machine that uses permanent magnets having a low residual magnetic flux density such as ferrite magnets, and includes: a stator comprising armature windings arranged at a fixed interval at multiple positions on the inner periphery; a rotor which has a permanent magnet in a cylindrical core comprising laminated magnetic steel sheets and is arranged inside of the stator; and magnetic flux blocking units provided across the circumferential direction on the outer periphery of the rotor that block the closed loop magnetic flux generated around the stator windings. The magnetic flux blocking units can be multiple permanent magnets, with a non-magnetic body such as an air gap disposed between them. The distance between the permanent magnets and the non-magnetic part can be smaller than the interval at which the armature windings are arranged.

公开(公告)号：US20170331337A1

公开(公告)日：2017-11-16

申请号：US15528398

申请日：2016-03-31

申请人： THE SWITCH DRIVE SYSTEMS OY

发明人： Panu KURRONEN ,  Markus SILVENTOINEN ,  Jussi PURANEN

IPC分类号： H02K1/27 ,  F01D5/06 ,  H02K21/02 ,  H02K16/02 ,  H02K1/28 ,  B63H23/24 ,  F01D5/30

CPC分类号： H02K16/02 ,  B63H23/24 ,  B63J3/02 ,  B63J2003/002 ,  F01D5/066 ,  F01D5/3053 ,  H02K1/2753 ,  H02K1/278 ,  H02K1/28 ,  H02K1/30 ,  H02K21/029 ,  H02K2201/06 ,  H02K2213/09

摘要： A rotor for a permanent magnet machine includes first and second axially successive rotor sections each including permanent magnets generating magnetic field having a pole pitch. The rotor includes a first coupling system for connecting the first rotor section to a shaft and a second coupling system for connecting the second rotor section to the shaft or to the first rotor section. The second rotor section is rotatable with respect to the first rotor section by an angle corresponding to the pole pitch in response to releasing the second coupling system so as to set the stator flux-linkages generated by the first and second rotor sections to be substantially zeroes. Thereafter, the permanent magnets do not substantially induce voltages on the stator windings even if the rotor is rotating during for example an internal fault of stator windings.

公开(公告)号：US09812912B2

公开(公告)日：2017-11-07

申请号：US15125981

申请日：2014-03-18

申请人： Mitsubishi Electric Corporation

发明人： Hiroki Kobayashi ,  Kentaro Horisaka ,  Kenta Ozaki ,  Koki Naka ,  Hisashi Otsuka

IPC分类号： H02K1/27

CPC分类号： H02K1/2713 ,  H02K1/2706 ,  H02K1/2753

摘要： A rotor for a permanent magnet motor, includes a magnetic pole portion that includes a magnetic body formed in an annular shape; and a field portion that is disposed adjacent to the magnetic pole portion in an axial direction, that includes a permanent magnet formed in an annular shape and having a multipole structure or a plurality of permanent magnets formed in an annular shape and having a monopole structure and a magnetic body, and that causes a magnetic flux generated by the permanent magnet to flow in the axial direction so as to generate magnetic poles on an outer circumferential surface of the magnetic pole portion.

公开(公告)号：US09800098B2

公开(公告)日：2017-10-24

申请号：US13884631

申请日：2011-11-02

申请人： Georg Blaser ,  Pino Broesamle

发明人： Georg Blaser ,  Pino Broesamle

IPC分类号： F04D7/00 ,  H02K7/14 ,  H02K1/14 ,  F04D15/02 ,  F04D29/046 ,  H02K21/16 ,  H02K21/24 ,  F04D13/06 ,  G05D9/12 ,  H02P6/182 ,  F04B49/06 ,  H02K1/27 ,  H02K3/28 ,  H02K9/197 ,  H02K11/33 ,  H02K1/18 ,  H02K5/10 ,  H02K5/128 ,  H02K5/173 ,  H02K5/22 ,  H02K5/24

CPC分类号： H02K1/146 ,  F04B49/06 ,  F04D13/06 ,  F04D13/064 ,  F04D15/0218 ,  F04D29/0467 ,  G05D9/12 ,  H02K1/148 ,  H02K1/182 ,  H02K1/2753 ,  H02K3/28 ,  H02K5/10 ,  H02K5/128 ,  H02K5/1282 ,  H02K5/1737 ,  H02K5/22 ,  H02K5/225 ,  H02K5/24 ,  H02K9/197 ,  H02K11/33 ,  H02K21/16 ,  H02K21/24 ,  H02P6/182

摘要： A pumping set includes an electric drive motor, which exhibits a stator casing and at least one terminal box connected with the latter, wherein the interior of the terminal box exhibits at least one separating wall, which divides an interior space of the terminal box into at least one electronics area with electronic components and a connection area, wherein the connection area incorporates both electrical connections for at least one connection line along with contacts for establishing an electrical connection with electrical or electronic components arranged inside the stator casing.