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1. 发明申请

US20190115796A1 Electric Machine with Q-Offset Grooved Interior-Magnet Rotor and Vehicle 审中-公开
公开(公告)号：US20190115796A1
公开(公告)日：2019-04-18
申请号：US16213462
申请日：2018-12-07
申请人： Hitachi Automotive Systems, Ltd.
发明人： Yasuyuki SAITO , Tsuyoshi GOTO , Kenichi NAKAYAMA , Noriaki HINO , Shinji SUGIMOTO
IPC分类号： H02K1/27 , H02K1/24 , B60L15/20 , B60L15/02 , H02K7/00 , H02P27/06
CPC分类号： H02K1/276 , B60K1/02 , B60K6/26 , B60K6/445 , B60L15/007 , B60L15/025 , B60L15/20 , B60L50/16 , B60L50/61 , B60L2210/10 , B60L2210/40 , B60L2220/14 , B60L2240/421 , B60L2240/423 , B60L2240/429 , B60L2240/443 , B60L2240/547 , B60L2240/549 , B60L2270/142 , B60L2270/145 , H02K1/24 , H02K1/2766 , H02K7/006 , H02K29/03 , H02K2201/06 , H02P27/06 , Y02T10/6217 , Y02T10/6239 , Y02T10/641 , Y02T10/643 , Y02T10/7077 , Y02T10/7216 , Y02T10/7241 , Y02T10/7275
摘要： A rotating electric machine includes a stator having a stator coil and a rotor provided rotatably around a specific rotation axis with respect to the stator. The rotor includes a plurality of magnets, a plurality of magnetically-assisted salient pole members provided between poles of any adjacent two magnets from among the plurality of magnets, and a magnetoresistance variation unit provided in the magnetically-assisted salient pole member along an axial direction of the rotation axis at a position offset in a circumferential direction of the rotation axis from a q-axis passing through a salient pole center of the magnetically-assisted salient pole member. The amount of offset of the magnetoresistance variation unit from the q-axis varies depending on positions of the magnetically-assisted salient pole members so that torque fluctuations cancel each other when power is applied.

2. 发明申请

US20180278104A1 MAGNET FOR IPM ROTOR, IPM ROTOR, AND METHOD OF MANUFACTURING MAGNET FOR IPM ROTOR 审中-公开
公开(公告)号：US20180278104A1
公开(公告)日：2018-09-27
申请号：US15927129
申请日：2018-03-21
申请人： HONDA MOTOR CO., LTD.
发明人： Michihisa Kono
IPC分类号： H02K1/27 , H02K1/02 , H02K15/03
CPC分类号： H02K1/2766 , H02K1/02 , H02K1/276 , H02K15/03
摘要： A magnet for an IPM rotor is inserted into a rotor core in an inserting direction along an axial direction thereof and buried in the rotor core in a circumferential direction thereof. The magnet for an IPM rotor is formed such that a shape thereof is a parallelogram having opposing sides when seen in a plan view from the inserting direction.

3. 发明申请

US20180269733A1 MOTOR 审中-公开
公开(公告)号：US20180269733A1
公开(公告)日：2018-09-20
申请号：US15745241
申请日：2016-07-19
申请人： ASMO Co.LTD
发明人： Koji Mikami , Yoji Yamada , Akihisa Hattori , Seiya Yokoyama
IPC分类号： H02K1/27
CPC分类号： H02K1/2766 , H02K1/27 , H02K1/278 , H02K3/28 , H02K21/14
摘要： This motor includes a stator having a winding, and a rotor. The rotor rotates by being subjected to a rotating magnetic field generated when a drive current is supplied to the winding. The winding includes a first winding and a second winding. The first winding and the second winding are energized with the same timing by the drive current, and are connected in series. The rotor includes magnetic poles comprising permanent magnets, and magnetic flux permitting portions. In a rotor rotational position in which the magnetic poles oppose the first winding, the magnetic flux permitting portions oppose the second winding and permit the generation of an interlinkage magnetic flux arising as a result of a field weakening current in the second winding.

4. 发明申请

US20180262142A1 MOTOR 审中-公开
公开(公告)号：US20180262142A1
公开(公告)日：2018-09-13
申请号：US15607993
申请日：2017-05-30
申请人： TDK CORPORATION
发明人： Eiji KATO , Makoto IWASAKI
IPC分类号： H02P21/22 , H02K1/27 , H02K41/03 , H02P6/08 , H02P27/04
CPC分类号： H02K41/031 , H02K1/02 , H02K1/16 , H02K1/2766 , H02K2213/03
摘要： A motor includes a magnet and a coil. α2=[{(Br2−Br1)/Br1}/(T2−T1)]×100≥0.11 and α3=[{(Br3−Br1)/Br1}/(T3−T1)]×100≤0.13 are satisfied. In the magnet, Br1 (mT) is a residual magnetic flux density at T1 (° C.), Br2 (mT) is a residual magnetic flux density at T2 (° C.), and Br3 (mT) is a residual magnetic flux density at T3 (° C.), and α2 (%/° C.) is a temperature coefficient at a target temperature of T2 (° C.) with respect to a reference temperature of T1 (° C.), and α3 (%/° C.) is a temperature coefficient at a target temperature of T3 (° C.) with respect to a reference temperature of T1 (° C.) in conditions of T1=20, T2=100, and T3=220.

5. 发明申请

US20180248428A1 MOTOR, ROTOR, COMPRESSOR, AND REFRIGERATION AND AIR CONDITIONING APPARATUS 审中-公开
公开(公告)号：US20180248428A1
公开(公告)日：2018-08-30
申请号：US15758024
申请日：2015-11-02
申请人： Mitsubishi Electric Corporation
发明人： Masahiro NIGO , Yuji HIROSAWA , Ryukichi KIJIMA
IPC分类号： H02K1/27 , H02K1/02 , H01F1/057 , F04C29/00 , F25B31/02 , F25B1/04
CPC分类号： H02K1/2766 , F04C18/30 , F04C29/0085 , F04C2240/40 , F25B1/04 , F25B31/026 , H01F1/057 , H02K1/02 , H02K1/27 , H02K2201/09
摘要： A motor includes a stator and a rotor provided inside the stator. The rotor includes a rotor core having a magnet insertion hole and two permanent magnets disposed in the magnet insertion hole. The rotor core has a first magnet holding portion disposed between the two permanent magnets and holding the two permanent magnets, an opening disposed on an inner side of the first magnet holding portion in a radial direction of the rotor core, and a center hole disposed at a center of the rotor core in the radial direction. A distance from the opening to the magnet insertion hole is shorter than a distance from the opening to the center hole.

6. 发明申请

US20180241265A1 ROTOR 审中-公开
公开(公告)号：US20180241265A1
公开(公告)日：2018-08-23
申请号：US15893171
申请日：2018-02-09
申请人： FANUC CORPORATION
发明人： Akihiro HOSODA
IPC分类号： H02K1/27
CPC分类号： H02K1/2766
摘要： The present invention is to provide a rotor capable of further increasing curvature of a permanent magnet while absorbing strain in the permanent magnet.A rotor having an embedded magnet type structure includes a rotor core having a plurality of slots disposed in a circumferential direction and a plurality of magnet parts respectively stored in the plurality of slots. Each of the plurality of magnet parts includes a pair of first sintered magnets each of which has a bar shape in a sectional view cut along a plane orthogonal to a rotary shaft and each of which is disposed so as to come closer to the other first sintered magnet along a radially inward direction of the rotor core, a second sintered magnet which has a curved shape curved in an arc shape in the sectional view and each of both end surfaces of which faces each of end surfaces in the radially inward direction of the pair of first sintered magnets, and a connecting member which is formed of resin and which connects each of the pair of first sintered magnets and the second sintered magnet.

7. 发明授权

US10033234B2 Motor 有权
公开(公告)号：US10033234B2
公开(公告)日：2018-07-24
申请号：US15037325
申请日：2014-05-07
申请人： U-MHI PLATECH CO., LTD. , MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Mikito Sasaki , Shinichi Isobe
IPC分类号： H02K1/27 , H02K1/24 , H02K21/12
CPC分类号： H02K1/2706 , H02K1/246 , H02K1/27 , H02K1/2766 , H02K21/12
摘要： A motor includes a stator that generates a rotating magnetic field; a rotor supported rotatably by a shaft within the stator; an outermost peripheral permanent magnet that is a permanent magnet embedded inside the rotor in an arced shape forming a convexity at the inner surface of the rotor; and an inner permanent magnet that is a permanent magnet embedded at the inside of the rotor in parallel to the outermost peripheral permanent magnet. The arc angle of the permanent magnets is greater than 90°, the thickness at the center of both inner permanent magnets is thinner than the thickness at the center of the outermost peripheral permanent magnet, and the thickness at the ends of both inner permanent magnets is thicker than the thickness at the ends of the outermost peripheral permanent magnet.

8. 发明申请

US20180191210A1 HIGH-TORQUE, LOW-CURRENT BRUSHLESS MOTOR 审中-公开
公开(公告)号：US20180191210A1
公开(公告)日：2018-07-05
申请号：US15844423
申请日：2017-12-15
申请人： Systems, Machines, Automation Components Corporation
发明人： Edward A. Neff , Toan M. Vu , Reyhan Zanis
IPC分类号： H02K1/18 , H02K1/27 , H02K5/173 , H02K21/22 , H02K7/08 , H02K15/03 , H02K21/14
CPC分类号： H02K1/185 , H02K1/2726 , H02K1/2766 , H02K1/278 , H02K1/2786 , H02K5/1737 , H02K7/083 , H02K11/225 , H02K15/03 , H02K21/14 , H02K21/22 , H02P1/00 , H02P21/0003
摘要： An electric motor including a coil assembly having a plurality of coils which may be arranged in the shape of a cylinder. The motor further includes a rotor including a plurality of outer magnets configured as a first Halbach cylinder surrounding the coil assembly. An outer magnet housing of the rotor is coupled to and surrounds the plurality of outer magnets. A plurality of inner magnets are arranged as a second Halbach cylinder with the coil assembly being interposed between the plurality of inner magnets and the plurality of outer magnets. An inner magnet housing is coupled to the plurality of inner magnets and surrounds an output shaft.

9. 发明申请

US20180175712A1 ELECTRIC MACHINE WITH VARIABELE MOTOR CONSTANTS 审中-公开
公开(公告)号：US20180175712A1
公开(公告)日：2018-06-21
申请号：US15736658
申请日：2016-06-22
申请人： Schaeffler Technologies AG & Co. KG
发明人： Lars Gehrke
IPC分类号： H02K21/02 , H02K1/27 , H02K7/06 , H01F7/122 , H02K7/08 , H02K41/03
CPC分类号： H02K21/028 , H01F7/122 , H02K1/2766 , H02K7/06 , H02K7/086 , H02K21/14 , H02K41/031
摘要： An electrical machine includes a stator and a rotor rotatably mounted in the stator. A spindle is guided through the electrical machine. At least one magnetic flux-conductive assembly which can be introduced into the electrical machine is provided. The magnetic flux-conductive assembly is disposed on the spindle in a linearly displaceable manner in order to vary a motor constant of the electrical machine as a result of a displacement into the electrical machine.

10. 发明授权

US10003227B2 Axially asymmetric configuration for interior permanent magnet machine 有权
公开(公告)号：US10003227B2
公开(公告)日：2018-06-19
申请号：US14788946
申请日：2015-07-01
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Sinisa Jurkovic , Mohammad Faizul Momen , Khwaja M. Rahman
IPC分类号： H02K1/27 , H02K29/03
CPC分类号： H02K1/2766 , H02K29/03 , H02K2201/06
摘要： An interior permanent magnet machine includes a rotor having a central axis and a plurality of axial segments. The axial segments include a first axial segment and a second axial segment positioned adjacent to each other in an axial direction. Each of the axially-spaced segments includes at least one pole defining a respective angular configuration characterized by respective first, second and third angles. The first axial segment defines a first set of angular configurations and the second axial segment defines a second set of angular configurations. The rotor is configured to have an axially asymmetric configuration such that the first set of angular configurations is different from the second set of angular configurations.

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