公开(公告)号：US20170353066A1

公开(公告)日：2017-12-07

申请号：US15612344

申请日：2017-06-02

Applicant: DENSO CORPORATION

Inventor： Akira FUKUSHIMA ,  Yuuki TAKAHASHI ,  Makoto TANIGUCHI

IPC: H02K1/24 ,  H02K1/28

CPC classification number: H02K1/243 ,  H02K1/28 ,  H02K21/044 ,  H02K2205/12

Abstract: In a rotor for a rotary electric machine, a claw pole assembly includes first claw poles and second claw poles. An annular cover member covers the outer circumferential surfaces of the first and second claw poles. The pole cover segments and the inter-pole cover segments are alternately arranged in the circumferential direction of the rotor. Each of the pole cover segments has a circular-arc shape around a first center, and each of the inter-pole cover segments has a circular-arc shape around a second center different from the first center. The first circumferential width of each pole cover segment and the second circumferential width of a corresponding one of the inter-pole segment adjacent to the pole cover segment have a predetermined ratio. The predetermined ratio varies in an axial direction of the rotor.

公开(公告)号：US20210384789A1

公开(公告)日：2021-12-09

申请号：US17411318

申请日：2021-08-25

Applicant: DENSO CORPORATION

Inventor： Yuki MAWATARI ,  Akito TAMURA ,  Hiroyuki TSUCHIYA ,  Akira FUKUSHIMA ,  Yuki TAKAHASHI

IPC: H02K3/50 ,  H02K11/33

Abstract: An armature which radially faces a magnetic field-producing unit equipped with a magnet unit having a plurality of magnetic poles includes a housing, an armature core, a multi-phase armature winding, and bus bars. The housing includes a cylinder and a disc-shaped end plate placed in contact with one of axially opposed ends of the cylinder. The armature core is disposed on a portion of the cylinder which radially faces the magnet unit. The armature winding is disposed on a portion of the armature core which radially faces the magnet unit. The bus bars electrically connect phase windings of the armature winding together. The armature also includes a bus bar module which is of a circular or C-shape extending along the circumference of the armature core. The bus bar module is secured to the cylinder, the end plate, or one of axially opposed ends of the armature core.

公开(公告)号：US20200162002A1

公开(公告)日：2020-05-21

申请号：US16739230

申请日：2020-01-10

Applicant: DENSO CORPORATION

Inventor： Makoto TANIGUCHI ,  Takumi INOUE ,  Kazushige OKUMOTO ,  Akira FUKUSHIMA

IPC: H02P21/30 ,  H02P21/22 ,  H02P25/22 ,  H02P27/12

Abstract: A rotating electric machine drive system includes: a rotating electric machine equipped with: a rotor having one magnetic pole configured by permanent magnets, and a salient pole portion that is magnetically convex in a radial direction; and a stator wound with a multiphase stator winding; an inverter for supplying electric power to the stator winding; and a control unit for controlling energization current of the inverters. The control unit performs energization control of the stator winding such that a fundamental wave current at a fundamental frequency synchronized with a rotational speed of the rotor, and a harmonic current that is triple the fundamental frequency flow in the stator winding, and such that energization of the harmonic current generates a stator magnetic field having a specified lead phase or delay phase with respect to a third-order magnetic field of the rotor.

公开(公告)号：US20140232233A1

公开(公告)日：2014-08-21

申请号：US14173397

申请日：2014-02-05

Applicant: DENSO CORPORATION

Inventor： Akira FUKUSHIMA ,  Shin KUSASE ,  Takeo MAEKAWA ,  Keiji KONDOU

IPC: H02K3/28 ,  H02K16/04 ,  H02K3/12

CPC classification number: H02K3/28 ,  H02K1/16 ,  H02K1/27 ,  H02K3/12 ,  H02K16/025 ,  H02K16/04 ,  H02K19/103 ,  H02K21/14 ,  H02K21/22

Abstract: A multi-gap rotating electric machine includes a rotor, a stator core and a stator coil. The stator core has inner and outer core parts respectively located radially inside and outside of the rotor and each having partially or fully closed slots. The stator coil is formed of electric conductor segments each having a first leg portion inserted in one of the slots of the inner core part, a second leg portion inserted in one of the slots of the outer core part, and a connecting portion connecting the first and second leg portions on one axial side of the rotor. The first and second leg portions respectively have radially inner and outer coil end parts formed on the opposite axial side to the connecting portion. Corresponding radially inner coil end parts are joined to each other, and corresponding radially outer coil end parts are joined to each other.

Abstract translation: 多间隙旋转电机包括转子，定子铁芯和定子线圈。 定子铁芯具有分别位于转子的径向内部和外侧的内部和外部芯部分，并且每个具有部分或全部闭合的狭槽。 定子线圈由导体段形成，每个导体段具有插入在内芯部分的一个槽中的第一脚部分，插入在外芯部分的一个槽中的第二脚部分和连接第一 以及在转子的一个轴向侧上的第二腿部。 第一和第二腿部分别具有形成在与连接部分相对的轴向侧上的径向内部和外部线圈端部。 对应的径向内侧线圈端部彼此接合，并且相应的径向外侧线圈端部彼此接合。

公开(公告)号：US20190149004A1

公开(公告)日：2019-05-16

申请号：US16244155

申请日：2019-01-10

Applicant: DENSO CORPORATION

Inventor： Akito TAMURA ,  Akira FUKUSHIMA

IPC: H02K3/28 ,  H02K1/16 ,  H02K3/12 ,  H02K3/50

Abstract: Each of phase windings includes parallel windings for each phase connected together in parallel, and the parallel windings include power-wire partial windings connected to a power supply side, neutral-line partial windings connected to a neutral point, and at least one of a set of 5-pitch and 7-pitch jumper wires, the power-wire partial windings, the neutral-wire partial windings, and the jumper wires being included in the plurality of partial windings forming the parallel windings. For two of the three phases, each of the 5-pitch jumper wires and a corresponding one of the 7-pitch jumper wires overlap each other, and for the remaining single phase, two of the 5-pitch jumper wires are spaced from each other in the circumferential direction, and each of the power-wire partial windings is adjacent to another power-wire partial winding for an identical phase or to a corresponding one of the neutral-line partial windings for a different phase.