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1. 发明申请

US20190238014A1 ELECTRIC MACHINE COMPRISING A ROTOR AND A STATOR 审中-公开
公开(公告)号：US20190238014A1
公开(公告)日：2019-08-01
申请号：US16336457
申请日：2017-08-17
申请人： Robert Bosch GmbH
发明人： Murat Kol , Patrick Heuser
IPC分类号： H02K1/27
CPC分类号： H02K1/276 , H02K1/2766 , H02K29/03 , H02K2201/06 , H02K2213/03
摘要： The invention relates to an electric machine comprising a rotor (10) and a stator (20). The rotor (10) has magnet pockets for receiving permanent magnets (55, 56, 85, 86), and the magnet pockets comprise at least one first pair of magnet pockets (50, 51) and a second pair of magnet pockets (80, 11). The second pair (80, 81) is arranged further inwards than the first pair (50, 51) when viewed in a radial direction with respect to a rotational axis, and the magnet pockets of each pair of magnet pockets (50, 51, 80, 81) are arranged symmetrically to one another with respect to an axis of symmetry (45), wherein the axis of symmetry (45) runs in the radial direction and through the center of the rotor (10). The magnet pockets of each pair of magnet pockets (50, 51, 80, 81) are arranged such that the distance of each magnet pocket to the axis of symmetry (45) increases as the distance to the circumferential edge (110) of the rotor (10) decreases. The magnet pockets of the first pair (50, 51) are arranged at a first mechanical angle to one another, and the magnet pockets of the second pair (80, 81) are arranged at a second mechanical angle to one another. The invention is characterized in that the first angle ranges from ca. 100° to ca. 140°, in particular from ca. 120° to ca. 140°, and the second angle ranges from ca. 65° to ca. 112°, in particular from ca. 88° to ca. 112°.

2. 发明申请

US20190190340A1 BRUSHLESS DC ELECTRIC MOTOR AND ASSOCIATED VEHICLE 审中-公开
公开(公告)号：US20190190340A1
公开(公告)日：2019-06-20
申请号：US16216319
申请日：2018-12-11
申请人： Valeo Systèmes d'Essuyage
发明人： Jose Luis Herrada
IPC分类号： H02K3/28 , H02K1/14 , H02K3/18 , H02K21/16
CPC分类号： H02K3/28 , H02K1/146 , H02K1/148 , H02K1/278 , H02K3/18 , H02K21/16 , H02K29/03 , H02K2201/06 , H02K2213/03
摘要： The present invention relates to a brushless dc electric motor (1) comprising: a rotor (3) comprising at least two pairs of poles, a stator (5) having a plurality of teeth (D1, D2) around which windings (B1, B2, B3, B′1, B′2, B′3) forming coils for electromagnetic excitation of the rotor (3) are wound, wherein the stator (5) comprises a first type of tooth (D1) covering a first electrical angle and a second type (D2) of tooth covering a second electrical angle different from the first electrical angle and wherein a phase of the motor is formed by windings (B1, B′1 or B2, B′2 or B3, B′3) wound onto teeth of the first type (D1) and second type (D2).

3. 发明申请

US20190115817A1 SECONDARY PART FOR AN IRONLESS LINEAR MOTOR, AND IRONLESS LINEAR MOTOR 审中-公开
公开(公告)号：US20190115817A1
公开(公告)日：2019-04-18
申请号：US16155907
申请日：2018-10-10
申请人： ETEL S.A.
发明人： Sean David Monaghan , Vivien Baverel
IPC分类号： H02K41/03 , H02K3/47
CPC分类号： H02K41/033 , H02K1/17 , H02K1/34 , H02K3/47 , H02K29/03 , H02K41/031 , H02K2201/03 , H02K2213/12
摘要： A secondary part, which defines a magnetic path for a primary part of a linear motor, includes a spacer element having a plurality of mounting points that, in an application, are configured to fasten the secondary part. Two yoke plates that form lateral sides are configured to be fastened to the spacer element such that the two yoke plates extend in mutual opposition, orthogonally to the magnetic path. The two yoke plates are configured to accommodate a plurality of permanent magnets on respective inner sides thereof. The two yoke plates have, on respective outer sides thereof, a reinforcing structure that is formed by a periodic variation of plate thickness in the direction of the magnetic path. Local minima of the reinforcing structure overlapping with the mounting points along the direction of the magnetic path.

4. 发明申请

US20180241262A1 ELECTRIC MACHINE ROTOR 审中-公开
公开(公告)号：US20180241262A1
公开(公告)日：2018-08-23
申请号：US15435890
申请日：2017-02-17
申请人： FORD GLOBAL TECHNOLOGIES, LLC
发明人： Chun Tang
IPC分类号： H02K1/27 , H02K21/16 , H02K1/14
CPC分类号： H02K1/2766 , H02K1/165 , H02K21/14 , H02K21/145 , H02K29/03 , H02K2213/03
摘要： A rotor includes nested V-shaped inner and outer pockets defining corresponding pole arc angles relative to a common center bridge axis and vertex, respective inner and outer top bridges, and respective inner and outer center bridges. A ratio of corresponding pole arc angle dependent functions and a ratio of a sum of the inner top bridges and center bridge widths to a sum of the outer top bridges and center bridge widths are same.

5. 发明授权

US10056794B2 Rotating electric machine and vehicle equipped with the rotating electric machine 有权
公开(公告)号：US10056794B2
公开(公告)日：2018-08-21
申请号：US15830476
申请日：2017-12-04
申请人： Hitachi Automotive Systems, Ltd.
发明人： Yasuyuki Saito , Hiroshi Hamano , Ryoji Kobayashi , Taisuke Ikeda , Yuji Kano
IPC分类号： H02K1/27 , H02K1/24 , B60L15/00 , B60L11/14 , B60L11/12 , B60L15/20 , H02K3/20 , H02K16/00 , H02K3/16 , H02K1/02 , H02K29/03 , H02K3/28
CPC分类号： H02K1/24 , B60L15/007 , B60L15/20 , B60L50/16 , B60L50/61 , B60L2210/40 , B60L2220/18 , B60L2220/50 , B60L2240/421 , B60L2270/145 , H02K1/02 , H02K1/2706 , H02K1/276 , H02K3/16 , H02K3/20 , H02K3/28 , H02K16/00 , H02K29/03 , H02K2201/06 , H02K2213/03 , Y02T10/6217 , Y02T10/641 , Y02T10/645 , Y02T10/7077 , Y02T10/7241 , Y02T10/7275
摘要： A rotating electric machine, in which a cross conductors of a stator connect slot conductors so as to stride N+1 slots at coil ends on one side and stride N−1 slots at coil ends on another side, with N representing a number of slots per pole, a stator winding includes a plurality of slot conductor groups each made up with a plurality of slot conductors corresponding to a single phase, the plurality of slot conductors in each slot conductor group are inserted at a predetermined number Ns of successive slots forming a continuous range along a circumference of the stator core so that the slot conductors in the slot conductor group take successive slot positions and successive layer positions, Ns=NSPP+NL when NSPP represents a number of slots per pole per phase and a number of layers is expressed as 2×NL.

6. 发明授权

US10052730B2 DC-motor 有权
公开(公告)号：US10052730B2
公开(公告)日：2018-08-21
申请号：US15563328
申请日：2016-03-31
申请人： Peng Cheng , Bengt Oelmann , Stefan Haller
发明人： Peng Cheng , Bengt Oelmann , Stefan Haller
IPC分类号： H02K23/04 , B23Q5/16 , H02K29/06 , H02K29/14 , H02P7/28 , H02K21/28 , H02K29/03
CPC分类号： B23Q5/16 , H02K21/28 , H02K29/00 , H02K29/03 , H02K29/06 , H02K29/14 , H02P7/28
摘要： A variable-speed direct current motor comprising a stator (22), a rotor (23) arranged within the stator, and a motor drive device (40) arranged partly at the stator and partly at the rotor, wherein the stator comprises a yoke (25) defining a cylindrical cavity (31), and a plurality of permanent magnets (24) arranged at the yoke, wherein the rotor comprises a cylindrical core (26) and a conductor structure (47) arranged at the core, wherein the motor drive device comprises an alternating current transformer (41) having a primary winding (42) arranged at the stator and a secondary winding (43) arranged at the rotor, a rectifier device (44) arranged at the rotor and connected with the secondary winding, a direct current supply device (45) arranged at the rotor (23) and connected with the rectifier device (44), and with the conductor structure (47), and an operation control device (48) comprising a first unit (49) arranged at the rotor (23) and a second unit (50) arranged externally of the rotor and wirelessly communicating with the first unit.

7. 发明申请

US20180233974A1 Reluctance Assisted External Rotor PMSM 审中-公开
公开(公告)号：US20180233974A1
公开(公告)日：2018-08-16
申请号：US15513734
申请日：2015-09-16
申请人： TM4 INC.
发明人： Ruisheng Shi , Arbi Gharakhani
IPC分类号： H02K1/27 , B60L11/00 , H02K29/03 , H02K1/24 , H02K21/22 , H02K15/03 , H02K1/28
CPC分类号： H02K1/2786 , B60L50/00 , B60L50/90 , H02K1/246 , H02K1/28 , H02K15/03 , H02K21/22 , H02K29/03 , H02K2213/03 , Y02T10/641
摘要： A reluctance assisted external rotor permanent magnet machine provided with fewer magnets without scarifying performance is described herein. Torque ripple and cogging torque reductions are discussed.

8. 发明申请

US20180205274A1 ROTOR FOR PERMANENT MAGNET EMBEDDED-TYPE MOTOR AND MOTOR USING THE SAME 审中-公开
公开(公告)号：US20180205274A1
公开(公告)日：2018-07-19
申请号：US15745860
申请日：2016-12-16
申请人： Hanon Systems
发明人： Jeong Gil Heo , Chan Ho Baek , Bong Kyun Seo
IPC分类号： H02K1/27 , H02K1/32 , H02K1/16
CPC分类号： H02K1/276 , H02K1/16 , H02K1/24 , H02K1/27 , H02K1/2766 , H02K1/32 , H02K21/14 , H02K29/03 , H02K2213/03
摘要： A rotor is for a permanent magnet embedded-type motor and a motor using the same. A rotor for a permanent magnet embedded-type motor includes a rotor core having a rotary shaft fixed to a center and having a plurality of magnet insertion holes formed to be spaced along a circumferential direction and a plurality of pairs of permanent magnets, respectively, inserted into each of the plurality of magnet insertion holes in a V-shape to be gradually spaced apart from each other toward a radially outer side. Each of the plurality of magnet insertion holes includes a pair of inner sides facing each other, and a barrier hole is formed to expand an inner space of each of the magnet insertion holes to protrude from the pair of inner sides, respectively.

9. 发明申请

US20180198330A1 PERMANENT MAGNET MOTOR 审中-公开
公开(公告)号：US20180198330A1
公开(公告)日：2018-07-12
申请号：US15575422
申请日：2015-09-30
申请人： Mitsubishi Electric Corporation
发明人： Yuji TAKIZAWA , Satoru AKUTSU , Masafumi OKAZAKI , Hiroshi AIDA , Yu HIROTANI , Kazumasa ITO
IPC分类号： H02K1/27 , H02K21/14 , H02K29/03 , H02K1/16
CPC分类号： H02K1/274 , H02K1/16 , H02K1/27 , H02K21/14 , H02K29/03 , H02K2201/06
摘要： It has been discovered that torque ripples can be reduced by adopting a shape in which: the width of a shoe connection formed in a stator of a permanent magnet motor is equal to or smaller than the thickness of each of core pieces constituting a stator core; and a relationship of 0.7≤Wm/(Tm×Gm)≤3.3 is satisfied, where Wm is the length of the long side of a flat plate-shaped permanent magnet embedded in a rotor, Tm is the length of the short side of the permanent magnet, and Gm is the maximum distance from the outer circumference of the rotor to the permanent magnet.

10. 发明授权

US09991772B2 Low axial force permanent magnet machine and magnet assembly for permanent magnet machine 有权
公开(公告)号：US09991772B2
公开(公告)日：2018-06-05
申请号：US15149101
申请日：2016-05-07
申请人： Philip Totaro
发明人： Philip Totaro , Fang Deng , Daniel M. Saban , Seong T. Lee , Murtuza Lokhandwalla , Joel Hetrick , Janne Kinnunen
IPC分类号： H02K21/14 , H02K29/03 , H02K1/16 , H02K1/27 , H02K1/28 , H02K21/22 , H02K7/18
CPC分类号： H02K21/14 , H02K1/16 , H02K1/278 , H02K1/28 , H02K7/1838 , H02K21/22 , H02K29/03 , H02K2201/06 , H02K2213/03
摘要： A rotor or stator hub for an electric machine includes a plurality of magnets arranged in a predetermined same pattern on a plurality of uniformly sized carrier plates. A plurality of permanent magnets are uniformly mounted on each of the carrier plates proximate a first edge of the carrier plate and spaced away from a second edge of the carrier plate. The carrier plates may be mounted on a rotor or stator hub in a predetermined configuration to create a plurality of axial array groups.

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