公开(公告)号：US20180048216A1

公开(公告)日：2018-02-15

申请号：US15673746

申请日：2017-08-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kiyoharu NAKAMURA

IPC: H02K9/19 ,  H02K1/27 ,  H02K1/14

CPC classification number: H02K9/19 ,  H02K1/146 ,  H02K1/16 ,  H02K1/2733 ,  H02K9/00 ,  H02K2201/03 ,  H02K2213/03

Abstract: A motor according to as aspect of the present invention includes a cylindrical rotor and a stator disposed so as to surround an outer peripheral surface of the rotor. The stator includes a stator core including a plurality of teeth radially arranged about a rotation axis of the rotor; and a stator coil inserted between each adjacent pair of the teeth. A flow channel for supplying a coolant to the outer peripheral surface of the rotor is formed within the teeth, and a projection part is provided at a tip face of each of the teeth facing the outer peripheral surface of the rotor in such a manner that an interval between the tip face of each of the teeth and the outer peripheral surface of the rotor gradually decreases in a rotation direction of the rotor.

公开(公告)号：US09893572B2

公开(公告)日：2018-02-13

申请号：US14144810

申请日：2013-12-31

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Cheng-Hsuan Lin ,  Han-Ping Yang ,  Wen-Yang Peng ,  Chau-Shin Jang

IPC: H02K1/06 ,  H02K21/16 ,  H02K21/24 ,  H02K17/16 ,  H02K19/10

CPC classification number: H02K1/06 ,  H02K17/16 ,  H02K19/103 ,  H02K21/16 ,  H02K21/24 ,  H02K2201/03

Abstract: A mover and stator assembly of an electric machine includes at least one stator and at least one rotor. Each stator includes multiple magnetic components each including a first surface and a salient portion protruding from the first surface. The rotor includes multiple second magnetic components each including a second surface and a groove located on the second surface. The first surfaces face the second surfaces, and the width of each salient portion is less than that of each groove.

公开(公告)号：US09831729B2

公开(公告)日：2017-11-28

申请号：US13675648

申请日：2012-11-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung-Il Kim ,  Sung-Hyuk Park

IPC: H02K1/27

CPC classification number: H02K1/274 ,  H02K1/276 ,  H02K1/278 ,  H02K2201/03 ,  H02K2201/15 ,  H02K2213/03

Abstract: A rotor is and a motor including the rotor and a stator are provided. The rotor includes a rotor core and rotor poles. The rotor poles are arranged circumferentially around the rotor core, and each of the rotor poles is formed in an asymmetric shape. The stator is spaced apart from the rotor and includes slots which are configured so that a coil may be wound around the slots.

公开(公告)号：US09831726B2

公开(公告)日：2017-11-28

申请号：US14485266

申请日：2014-09-12

Applicant: Brose Fahrzeugteile GmbH & Co. KG, Wuerzburg

Inventor： Sunny Zhang ,  Jin Xu ,  Daniel Fiederling

IPC: H02K21/12 ,  H02K1/02 ,  H02K21/16 ,  H02K1/27 ,  H02K1/06 ,  H02K1/17 ,  H02K3/46

CPC classification number: H02K1/02 ,  H02K1/06 ,  H02K1/17 ,  H02K1/27 ,  H02K1/276 ,  H02K1/2766 ,  H02K1/2773 ,  H02K3/46 ,  H02K21/16 ,  H02K2201/03 ,  H02K2213/03

Abstract: An electrical machine, in particular an electric motor of a motor vehicle, having a stator and having a rotor which has a rotation axis. In this case, an electrical machine can be a brushless electric motor (DC motor) or a synchronous machine, but also a generator. The stator or the rotor has an electromagnet structure and the other has a permanent-magnet structure which comprises a first quantity of permanent magnets and a second quantity of permanent magnets. At an operating temperature, the magnetic coercive field strength of the first quantity is greater than the magnetic coercive field strength of the second quantity.

公开(公告)号：US09812938B2

公开(公告)日：2017-11-07

申请号：US14654677

申请日：2013-12-23

Applicant: SEH Limited

Inventor： Jeremy Hein ,  Martin Marschner Von Helmreich

IPC: H02K33/16 ,  H01F7/20 ,  H01F7/02 ,  H01F7/06 ,  H01F7/16 ,  H02P25/032

CPC classification number: H02K33/16 ,  H01F7/0242 ,  H01F7/064 ,  H01F7/1646 ,  H01F7/206 ,  H01F2007/208 ,  H02K2201/03 ,  H02K2213/03 ,  H02K2213/09 ,  H02P25/032

Abstract: A magnetic device comprising at least one stator (1) and one translator (2), which translator (2) is movable along a translator movement path (3) in a translator movement direction (4) relative to the Stator (1),the translator (2) being coupled, at least in portions of the translator movement path (3), to an acceleration unit (5), which on coupling the translator (2) with the acceleration unit (5) generates an acceleration force state comprising at least a corrective force Fcorr acting on the translator (2), which acceleration force state can cause a movement of the translator (2) away from the stator (1), wherein when the translator (2) is coupled to the acceleration unit (5) and the translator (2) moves away from the stator (1), the sum total of the forces acting on the translator (2) in the translator movement direction (4) due to magnetism is greater than or equal to zero, so that the translator (2) can be separated from the attractive force generated by the stator (1) by means of the corrective force Fcorr.

公开(公告)号：US20170288517A1

公开(公告)日：2017-10-05

申请号：US15510462

申请日：2015-09-14

Applicant: MITSUBA Corporation

Inventor： Hirotatsu IKENO ,  Takamasa AOKI ,  Yuya OGAWA

IPC: H02K21/14 ,  H02K1/27 ,  H02K1/16

CPC classification number: H02K21/14 ,  H02K1/146 ,  H02K1/16 ,  H02K1/278 ,  H02K21/16 ,  H02K2201/03 ,  H02K2213/03

Abstract: A brushless motor including a toothed part with a tooth main body and a tip part. Protruding slant parts are formed on both sides of the tooth tip part. A tip surface is formed on the inner diameter of the tip part to face a magnet. A groove part is recessed in the center of the tip surface and extends in the axial direction. A depth d of the groove part satisfies 0 Wg≧Wt/2 (Lx: distance between rotor center and a tooth/slant intersection X; X: intersection between an extension line P of a circumferential side surface of the tooth main body and an extension line Q of a slope of the slant part; Rt: radius of the inner diameter of the tooth tip surface; Wt: width of the tooth main body).

公开(公告)号：US20170279320A1

公开(公告)日：2017-09-28

申请号：US15468528

申请日：2017-03-24

Applicant: Valeo Equipements Electriques Moteur

Inventor： Jérome LEGRANGER ,  Khadija EL BARAKA ,  Svetislav JUGOVIC

IPC: H02K1/27 ,  H02K3/18 ,  H02K1/14

CPC classification number: H02K1/2706 ,  H02K1/146 ,  H02K1/2773 ,  H02K3/18 ,  H02K2201/03 ,  H02K2213/03

Abstract: A rotary electrical machine comprises a stator and a rotor having an axis of rotation, wherein, on a plane radial to the axis of rotation has a rotor tooth with an arc of a circle. The arc is defined by a centre situated on the axis of symmetry of the tooth, a first point at an intersection between the axis of symmetry and a circle centred on the axis of rotation, and an outer radius. A second point is situated on an axis which passes via the axis of rotation, and forms an angle of 360° divided by a number equal to twice the number of magnetic poles. The second point is situated from the axis of rotation an amount equal to the outer radius decreased by an allowance. A ratio between the allowance and the outer radius is between 0.015 and 0.07.

公开(公告)号：US20170257005A1

公开(公告)日：2017-09-07

申请号：US15450098

申请日：2017-03-06

Applicant: Bryan Prucher

Inventor： Bryan Prucher

IPC: H02K7/18 ,  H02K3/28 ,  H02K1/30 ,  H02K7/08 ,  F03D9/25 ,  H02K1/27

CPC classification number: H02K1/278 ,  H02K1/2786 ,  H02K3/522 ,  H02K7/088 ,  H02K21/16 ,  H02K21/225 ,  H02K41/031 ,  H02K2201/03 ,  H02K2201/15 ,  H02K2203/06 ,  H02K2203/09 ,  H02K2213/09 ,  Y02E10/72

Abstract: The present invention provides a module dual radial gap brushless, permanent magnet AC or DC (BLPMAC/BLPMDC) rotary electrical motor/generator suitable for direct drive wind or other fluid medium driven turbines. The motor/generator includes a circular rotor ring of individual rotor segments and a circular stator ring of individual stator segments. Each rotor segment includes a plurality of magnet modules disposed therein and arranged in alternating magnetic plurality. The stator includes a plurality of stator induction modules nested within the rotating rotor. Each stator induction module includes a coil electrically connected to a phase bus bar and a common bus bar. In a first embodiment of the stator induction modules, the motor/generator has a pre-established, fixed gap between the magnets and the coils. In a second embodiment of the stator induction modules, the generator has a gap controlled by a self-calibrating mechanism that compensates for variations in dimensional tolerance and concentricity between the rotor and the stator.

公开(公告)号：US09739280B2

公开(公告)日：2017-08-22

申请号：US13971160

申请日：2013-08-20

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Takayuki Chikaoka

IPC: H02K1/27 ,  H02K29/03 ,  F04D13/06 ,  H02K7/14 ,  F04C2/10 ,  F04C11/00 ,  F04C15/00

CPC classification number: F04D13/06 ,  F04C2/102 ,  F04C11/008 ,  F04C15/008 ,  H02K1/276 ,  H02K1/278 ,  H02K7/14 ,  H02K29/03 ,  H02K2201/03

Abstract: An electrically driven motor includes a motor rotor having a rotor core and a plurality of permanent magnets attached onto an outer circumferential portion of the rotor core. The electrically driven motor also includes a stator having a plurality of slots. In the electrically driven motor, a plurality of projections rotor teeth are disposed at positions of the outer circumferential portion of the rotor core which are spaced apart from each other by a predetermined interval of distance and which include a magnetic pole center of at least one permanent magnet. The plurality of rotor teeth extend all the way to a location of the teeth of the stator.

公开(公告)号：US20170233025A1

公开(公告)日：2017-08-17

申请号：US15429189

申请日：2017-02-10

Applicant: ALLIED TREASURE INC., LIMITED

Inventor： CHI-HSUEH RICHARD

IPC: B62K11/04 ,  H02K21/24 ,  H02K1/02 ,  H02P6/182 ,  H02K11/33

CPC classification number: B62K11/04 ,  B62K2202/00 ,  B62K2204/00 ,  B62K2208/00 ,  B62M7/02 ,  H02K1/02 ,  H02K7/006 ,  H02K11/33 ,  H02K21/16 ,  H02K21/24 ,  H02K2201/03 ,  H02P6/182 ,  H02P6/26

Abstract: The present disclosure relates to a disk-type brushless direct current (BLDC) motor, which comprises a magnetic rotor and a stator. The magnetic rotor is provided with a rim and a plurality of equally spaced magnetic poles around the rim in circumferential direction. The stator is provided with a stator core having tooth portions and boot portions and a plurality of coil windings wrapped around the tooth portions. The stator is disposed radially in relation to the magnetic rotor such that the magnetic poles are radially polarized to produce radial magnetic flux density, and the magnetic flux density is substantially higher at both edges than middle portion of each magnetic pole in the circumferential direction.