公开(公告)号：US09831731B2

公开(公告)日：2017-11-28

申请号：US14073042

申请日：2013-11-06

Applicant: DENSO CORPORATION

Inventor： Hideaki Suzuki ,  Masahiro Seguchi ,  Yuki Takahashi ,  Shinsuke Sugiura

IPC: H02K3/28 ,  H02K3/12

CPC classification number: H02K3/28 ,  H02K3/12 ,  H02K2213/03

Abstract: In a stator having a stator core and phase windings, slots are formed in the stator core and each slot accommodates conductors in a layer structure from one end to the other end of the slot in a radial direction of the stator core. The phase windings in one phase have conductors accommodated in a first slot and a second slot which are adjacently formed in the stator core. An electrical connection between the conductors in a n-th layer and the conductors in a (n+1)-th layer includes that the conductors accommodated in the first slot are electrically connected together, the conductors accommodated in the second slot are electrically connected together, and the conductors accommodated in the first slot are electrically connected with the conductors accommodated in the second slot. This connection eliminates a phase difference in the first slot and the second slot in a distributed winding structure.

公开(公告)号：US20170324286A1

公开(公告)日：2017-11-09

申请号：US15525223

申请日：2015-11-06

Applicant: DENSO CORPORATION

Inventor： Akito AKIMOTO ,  Masayuki TAKIGUCHI ,  Atsuo ISHIZUKA

IPC: H02K1/16 ,  H02K3/12 ,  H02K3/48 ,  H02K15/04

CPC classification number: H02K1/16 ,  H02K3/12 ,  H02K3/48 ,  H02K15/0478 ,  H02K2213/03

Abstract: A stator includes a stator core having slots arranged in a circumferential direction and a stator coil formed by wave-winding continuous coil wires on the stator core. Each of the continuous coil wires has in-slot portions received in the slots and turn portions each of which connects, on the outside of the slots, one pair of the in-slot portions. The stator coil is formed, by spirally rolling a band-shaped coil wire bundle that is formed by bundling the continuous coil wires, into a cylindrical shape. In the coil wire bundle, the continuous coil wires are transposed at a plurality of locations. Moreover, in a range where the continuous coil wires extend in the circumferential direction of the stator core by one complete turn, at least one interval between adjacent transposition locations in the coil wire bundle is greater than or equal to the circumferential length of one turn portion.

公开(公告)号：US09793774B2

公开(公告)日：2017-10-17

申请号：US14421484

申请日：2012-10-16

Applicant: Hirohisa Yokota ,  Yutaro Shirai ,  Shinichiro Yoshida

Inventor： Hirohisa Yokota ,  Yutaro Shirai ,  Shinichiro Yoshida

IPC: H02K3/12 ,  H02K3/34 ,  H02K3/18 ,  H02K3/52 ,  H02K3/30 ,  H02K3/38

CPC classification number: H02K3/12 ,  H02K3/18 ,  H02K3/30 ,  H02K3/34 ,  H02K3/38 ,  H02K3/522 ,  H02K2203/12

Abstract: An armature for a rotary electric machine includes: a core that includes a plurality of teeth that are arranged at a predetermined pitch in a circumferential direction; and a plurality of edgewise coils that are configured by winding a rectangular conductor wire into an edgewise winding, the plurality of edgewise coils each include rectilinear portions and coil end portions that are arranged radially, and that are each linked by bent portions, the rectilinear portions are arranged radially on circumferential side portions of the teeth so as to be gradually further away from a central axis of the teeth from a tip end of the teeth toward a root, and radially adjacent portions of the rectangular conductor wire are configured such that bulging portions that arise due to compressive stresses resulting from bending at inner peripheral side portions of the bent portions do not face each other.

公开(公告)号：US09793772B2

公开(公告)日：2017-10-17

申请号：US13948654

申请日：2013-07-23

Applicant: DENSO CORPORATION ,  ASMO CO., LTD.

Inventor： Shinji Makita ,  Yasuhide Ito ,  Tomohiro Aoyama

IPC: H02K3/12 ,  H02K21/16 ,  H02K3/28

CPC classification number: H02K3/12 ,  H02K3/28 ,  H02K21/16 ,  H02K2213/03

Abstract: A stator for a rotating electric machine includes an annular stator core and a plurality of winding groups mounted on teeth of the stator core. Each of the winding groups is either a short-pitch winding group which consists of windings wound at a pitch shorter than 180° in electrical angle or a full-pitch winding group which consists of windings wound at a pitch equal to 180° in electrical angle. The winding groups include at least one short-pitch winding group pair which consists of two short-pitch winding groups that respectively belong to two different phases and are circumferentially adjacent to each other. The two short-pitch winding groups are arranged so as not to overlap each other in a radial direction of the stator core. There are no other winding groups interposed between the two short-pitch winding groups in the circumferential direction of the stator core.

公开(公告)号：US20170257013A1

公开(公告)日：2017-09-07

申请号：US15446713

申请日：2017-03-01

Applicant: Nidec Motor Corporation

Inventor： Mark D. Weisheit ,  Liming Zhou

IPC: H02K17/16 ,  H02K3/12 ,  H02K3/02 ,  H02K9/06

CPC classification number: H02K17/165 ,  H02K3/02 ,  H02K3/12 ,  H02K9/06 ,  H02K2213/03

Abstract: A rotating element for a dynamo-electric machine such as an electric induction motor. The rotating element includes a plurality of axially stacked laminations cooperatively defining a plurality of arcuately spaced bar slots. The rotating element also includes a plurality of bars, with each bar extending through one of the bar slots. Each of the bars comprises copper-impregnated polymer.

公开(公告)号：US20170257002A1

公开(公告)日：2017-09-07

申请号：US15447327

申请日：2017-03-02

Applicant: DENSO CORPORATION

Inventor： Atsuo ISHIZUKA ,  Hiromitsu ASAI ,  Mitsuyuki HAYASHI ,  Yoki TSUJIMORI

IPC: H02K3/28 ,  H02K15/00 ,  H02K15/085 ,  H02K3/12

CPC classification number: H02K3/28 ,  H02K3/12 ,  H02K15/0068 ,  H02K15/0081 ,  H02K15/085

Abstract: A rotating electric machine includes a pair of electric conductors for forming a coil and a weld. Each of the electric conductors has an end portion with an end surface. The weld is formed between the end portions of the electric conductors at the end surfaces of the end portions. Moreover, the end portions of the electric conductors are arranged so that parts of the end portions of the electric conductors adjoin each other. At least one of the end portions of the electric conductors has at least one slit formed therein to divide the end surface of the end portion into a plurality of sections. The weld is formed to cover, at least, the adjoining parts of the end portions of the electric conductors and the at least one slit.

公开(公告)号：US20170257001A1

公开(公告)日：2017-09-07

申请号：US15318872

申请日：2015-09-18

Applicant: AISIN SEIKI KABUSHIKI KAISHA

Inventor： Naoki KAMIYA ,  Akihiro ONO

IPC: H02K3/28 ,  H02K3/30 ,  H02K3/12

CPC classification number: H02K3/28 ,  H02K3/12 ,  H02K3/30 ,  H02K3/44 ,  H02K3/522

Abstract: A stator having good electric characteristics is reasonably configured. The stator includes a stator core including an annular core portion centered around a rotational axis of a rotor and a plurality of teeth portions protruding radially from the core portion, a core wire wound around the teeth portions, a resin plate to be superposed on the stator core along the rotational axis, the resin plate defining a hole therethrough along the rotational axis, into which hole an end portion of the coil wire is inserted, and a resin portion in which the stator core, the coil wire and the plate are embedded. The end of the coil wire is directly connected to a bus bar for electric power supply or grounding, with the end of the coil wire being exposed from the resin portion.

公开(公告)号：US20170257000A1

公开(公告)日：2017-09-07

申请号：US15446168

申请日：2017-03-01

Applicant: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR

Inventor： Geoffroy WILQUIN ,  Stéphane DE-CLERCQ ,  Vincent RAMET ,  Sébastien LECLERCQ

IPC: H02K3/12 ,  H02K3/28

CPC classification number: H02K3/12 ,  H02K3/28 ,  H02K15/065 ,  H02K15/085

Abstract: The invention relates mainly to a rotary electrical machine stator, in particular for a motor vehicle, comprising: a stator body (11) with a central axis, the stator body (11) comprising a series of notches (15); a winding wound in the notches (15) in the stator body (11) forming a first chignon (231) and a second chignon (232) extending axially on both sides of the stator body (11); wherein at least one of the phase windings (PH1-PH3, PH1′-PH3′) is a shielded winding which comprises all the active portions (20) of the layer (C1, CN) situated at one of the radial ends at least of each notch (15) of the series, each extended firstly by a corresponding connection portion (21) of the first chignon (231), and secondly by a corresponding connection portion (21) of the second chignon (232).

公开(公告)号：US09748804B2

公开(公告)日：2017-08-29

申请号：US15291808

申请日：2016-10-12

Applicant: Genesis Robotics LLP

Inventor： James Brent Klassen

IPC: H02K1/14 ,  H02K1/22 ,  H02K1/27 ,  H02K21/00 ,  H02K1/20 ,  H02K16/04 ,  H02K5/16 ,  B25J9/12 ,  H02K1/02 ,  H02K1/06 ,  H02K3/04 ,  H02K5/04 ,  H02K9/00 ,  H02K21/24 ,  H02K15/04 ,  H02K7/08 ,  H02K9/02 ,  H02K1/16 ,  H02K3/12 ,  H02K41/03

CPC classification number: H02K1/24 ,  B25J9/0009 ,  B25J9/12 ,  B25J15/0009 ,  B25J15/0233 ,  B25J15/08 ,  B25J17/00 ,  B25J19/0029 ,  H02K1/02 ,  H02K1/06 ,  H02K1/08 ,  H02K1/14 ,  H02K1/16 ,  H02K1/20 ,  H02K1/27 ,  H02K1/274 ,  H02K1/278 ,  H02K1/2793 ,  H02K1/32 ,  H02K3/04 ,  H02K3/12 ,  H02K3/24 ,  H02K3/26 ,  H02K5/04 ,  H02K5/16 ,  H02K5/18 ,  H02K7/08 ,  H02K7/14 ,  H02K9/005 ,  H02K9/02 ,  H02K9/19 ,  H02K15/04 ,  H02K16/04 ,  H02K19/10 ,  H02K21/00 ,  H02K21/14 ,  H02K21/22 ,  H02K21/24 ,  H02K41/031 ,  H02K2201/12 ,  H02K2213/03

Abstract: An electric machine comprise a first carrier having an array of electromagnetic elements and a second carrier having electromagnetic elements defining magnetic poles, the second carrier being arranged to move relative to the first carrier. An airgap is provided between the first carrier and the second carrier. The electromagnetic elements of the first carrier include posts, with slots between the posts, one or more electric conductors in each slot, the posts of the first carrier having a post height in mm. The first carrier and the second carrier together define a size of the electric machine. The magnetic poles having a pole pitch in mm. The size of the motor, pole pitch and post height are selected to fall within a region in a space defined by size, pole pitch and post height that provides a benefit in terms of force or torque per weight per excitation level.

公开(公告)号：US20170194844A1

公开(公告)日：2017-07-06

申请号：US15066301

申请日：2016-03-10

Applicant: XINGU MOTOR INC.

Inventor： Lien-Hsin WU

IPC: H02K16/04 ,  H02K23/36 ,  H02K13/00 ,  H02K3/28 ,  H02K3/12

CPC classification number: H02K16/04 ,  H02K3/12 ,  H02K3/28 ,  H02K13/006 ,  H02K23/36

Abstract: The present invention provides a DC motor structure with a hollow rotor and inner and outer stators includes a housing, a commutator, and an output element, in addition to the hollow rotor and the stators. The commutator and the output element are received at the front and rear ends of the housing respectively. The outer stator, the hollow rotor, and the inner stator are sequentially arranged in the housing in a direction toward the central axis of the housing. The hollow rotor between the stators is wound with plural windings and has a front end and a rear end respectively connected to the commutator and the output element. When each winding receives a current from the commutator, the hollow rotor generates a corresponding electromagnetic field such that the commutator and the output element rotate simultaneously with the hollow rotor to output directly through the output element the rotating force generated by the hollow rotor.