公开(公告)号：US08860281B2

公开(公告)日：2014-10-14

申请号：US13644576

申请日：2012-10-04

Applicant: Denso Corporation

Inventor： Takeo Maekawa ,  Shin Kusase ,  Keiji Kondou

IPC: H02K1/22

CPC classification number: H02K19/24 ,  H02K1/246 ,  H02K1/2746 ,  H02K19/103 ,  H02K21/12

Abstract: The multiple-gap electric rotating machine includes a rotor cantilever-supported at a first axial end thereof by a rotor arm coupled to a rotating shaft. The rotor includes a laminated core of core sheets made of soft magnetic material and an end-surface core disposed on a surface of the laminated core on a second axial end of the rotor. The laminated core includes segments joined in a ring and each formed with a salient pole structure at each of radially inner and outer peripheries thereof. The end-surface core includes soft magnetic sections made of steel and non-magnetic sections made of stainless steel, which are joined together in a ring. The laminated core is held between the rotor arm and the end-surface core, and fixed to the rotor arm by rivets penetrating through the rotor arm, laminated core and the end -surface core.

Abstract translation: 该多间隙旋转电动机包括：在其第一轴向端部通过与旋转轴连接的转子臂悬臂支撑的转子。 转子包括由软磁性材料制成的芯片的层叠铁芯和设置在转子的第二轴向端上的层叠铁芯的表面上的端面铁芯。 层叠铁心包括接合在环中并且每个在其径向内周和外周各形成有凸极结构的段。 端面芯包括由钢制成的软磁性部分和由不锈钢制成的非磁性部分，它们以环形结合在一起。 层叠铁芯保持在转子臂和端面铁心之间，并通过穿过转子臂，层叠铁芯和端面芯的铆钉固定到转子臂上。

公开(公告)号：US20130264895A1

公开(公告)日：2013-10-10

申请号：US13737377

申请日：2013-01-09

Applicant: DENSO CORPORATION

Inventor： Kenji KONDOU ,  Shin Kusase ,  Takeo Maekawa

IPC: H02K1/06

CPC classification number: H02K1/06 ,  H02K16/04 ,  H02K21/12 ,  H02K21/14 ,  H02K2201/03 ,  H02K2213/03

Abstract: The synchronous motor includes a rotor including a rotor core constituted of segment poles disposed in a ring and a stator including a stator core disposed radially outward or inward of the rotor with a gap therebetween and a multiple-phase stator winding wound on the stator core. Each of the segment poles has a magnetic salient pole characteristic. The rotor is rotated in synchronization with a rotating magnetic field generated when the multiple-phase stator winding is applied with a multiple-phase AC voltage. The lamination thickness as an axial length of the stator core is shorter than the lamination thickness as an axial length of the rotor core.

Abstract translation: 同步电动机包括：转子，其包括由设置在环中的分段磁极构成的转子铁心和定子，该定子包括定子铁芯，该定子铁心沿转子的径向外侧或向内设置有间隙，并且定子铁芯上缠绕有多相定子绕组。 每个分段极具有磁性突极特性。 转子与多相定子绕组施加多相交流电压时产生的旋转磁场同步旋转。 作为定子铁心的轴向长度的层压厚度比作为转子铁芯的轴向长度的层叠厚度短。

公开(公告)号：US10236756B2

公开(公告)日：2019-03-19

申请号：US15089714

申请日：2016-04-04

Applicant: DENSO CORPORATION

Inventor： Shin Kusase

IPC: H02K11/33 ,  H02K21/04 ,  H02P3/24

Abstract: A rotating electric machine includes a multi-phase coil, an armature core, a rotor, a yoke core and a superimposer. The armature core has the multi-phase coil wound thereon. The rotor is rotatably disposed and has a plurality of magnetic poles facing the armature core. The yoke core is arranged so as to surround outer peripheries of the multi-phase coil and the armature core. The yoke core is magnetically connected with the magnetic poles of the rotor. The superimposer superimposes a DC component on a multi-phase alternating current supplied to the multi-phase coil, thereby supplying a DC field magnetic flux to a magnetic circuit that is formed by the armature core, the magnetic poles of the rotor and the yoke core.

公开(公告)号：US10090742B2

公开(公告)日：2018-10-02

申请号：US15166408

申请日：2016-05-27

Applicant: DENSO CORPORATION

Inventor： Shin Kusase

IPC: H02K19/00 ,  H02K19/10 ,  H02K1/24 ,  H02K19/12 ,  H02K21/04 ,  H02K21/12 ,  H02K1/27 ,  H02K16/04

Abstract: A rotating electric machine includes at least one multi-phase coil, at least one armature core having the at least one multi-phase coil wound thereon, and at least one rotor rotatably disposed and having a plurality of magnetic poles facing the at least one armature core. The at least one multi-phase coil has at least one coil end part protruding from the at least one armature core and surrounded by at least one magnetic circuit formed in the rotating electric machine. There are a plurality of gaps formed between the at least one armature core and the at least one rotor.

公开(公告)号：US10090741B2

公开(公告)日：2018-10-02

申请号：US14955620

申请日：2015-12-01

Applicant: DENSO CORPORATION

Inventor： Shin Kusase

IPC: H02K16/04 ,  H02K3/28 ,  H02K1/27

Abstract: A double-stator rotating electric machine includes a rotor, an outer stator having an outer multi-phase coil wound thereon, and an inner stator having an inner multi-phase coil wound thereon. Each corresponding pair of phase windings of the outer and inner multi-phase coils are formed of at least one common electric conductor wire. The electric conductor wire includes a bridging portion that bridges the corresponding pair of phase windings of the outer and inner multi-phase coils across the rotor. The bridging portion extends obliquely with respect to both radial and circumferential directions of the rotor so that radially outer and radially inner ends of the bridging portion, which are respectively connected to the corresponding pair of phase windings of the outer and inner multi-phase coils, are circumferentially offset from each other by an offset angle θ. The offset angle θ is greater than 0° and less than 180° in electrical angle.

公开(公告)号：US10079517B2

公开(公告)日：2018-09-18

申请号：US15003887

申请日：2016-01-22

Applicant: DENSO CORPORATION

Inventor： Shin Kusase

IPC: H02K1/16 ,  H02K1/27 ,  H02K3/28

CPC classification number: H02K1/165 ,  H02K1/2786 ,  H02K2213/03

Abstract: An outer rotor-type rotating electric machine includes a rotor and a stator. The rotor includes a plurality of magnets each of which extends in a circumferential direction of the rotor and is magnetized in a radial direction of the rotor. The stator is disposed radially inside the rotor. The stator has a plurality of stator teeth formed in a radial pattern. Each of the stator teeth has an inner circumferential width at its radially inner end and an outer circumferential width at its radially outer end. Moreover, the following relationship is satisfied: Wi/Wo≥0.6, where Wi is the inner circumferential width and Wo is the outer circumferential width of each of the stator teeth.

公开(公告)号：US09627935B2

公开(公告)日：2017-04-18

申请号：US14173397

申请日：2014-02-05

Applicant: DENSO CORPORATION

Inventor： Akira Fukushima ,  Shin Kusase ,  Takeo Maekawa ,  Keiji Kondou

IPC: H02K16/00 ,  H02K16/04 ,  H02K3/28 ,  H02K21/14 ,  H02K21/22 ,  H02K19/10 ,  H02K3/12 ,  H02K1/27 ,  H02K16/02 ,  H02K1/16

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.

公开(公告)号：US09143024B2

公开(公告)日：2015-09-22

申请号：US13656990

申请日：2012-10-22

Applicant: DENSO CORPORATION

Inventor： Shin Kusase

IPC: H02K16/04 ,  H02K3/28 ,  H02K21/14 ,  H02K21/22 ,  H02K1/27 ,  H02K3/50 ,  H02K23/36 ,  H02K3/52

CPC classification number: H02K16/04 ,  H02K1/276 ,  H02K1/2786 ,  H02K3/28 ,  H02K3/50 ,  H02K3/505 ,  H02K3/52 ,  H02K3/521 ,  H02K3/522 ,  H02K21/14 ,  H02K21/22 ,  H02K23/36 ,  H02K23/38

Abstract: A double-stator motor of an example embodiment includes: an annular rotor connected to a rotary shaft and integrally rotates with the rotary shaft, an inner stator arranged radially inward of the rotor, and an outer stator arranged radially outward of the rotor. The rotor includes a plurality of segments annularly arranged in the circumferential direction, spaced apart from each other by a predetermined distance, and a plurality of permanent magnets each interposed between circumferentially adjacent segments, the permanent magnets being alternately magnetized in the circumferentially opposite direction. The rotor, the inner stator and the outer stator have the same number of poles. The inner and outer stator windings of the inner and outer stators, respectively, are connected so that their phases are reversed to each other. Thus, the magnetic fields generated by the magnetomotive forces of the inner and outer stators are applied to specific segments in parallel.

Abstract translation: 实施例的双定子电动机包括：连接到旋转轴并与旋转轴一体地旋转的环形转子，设置在转子的径向内侧的内部定子和布置在转子的径向外侧的外部定子。 转子包括沿圆周方向环形布置的多个段，彼此间隔开预定距离;以及多个永磁体，每个永久磁铁各自插在周向相邻的段之间，永磁体沿周向相反的方向交替磁化。 转子，内定子和外定子具有相同的极数。 内部和外部定子的内部和外部定子绕组分别连接成使它们的相位彼此相反。 因此，由内外定子的磁动势产生的磁场被并行地施加到特定的段。

公开(公告)号：US09006949B2

公开(公告)日：2015-04-14

申请号：US13741697

申请日：2013-01-15

Applicant: Denso Corporation

Inventor： Shin Kusase ,  Keiji Kondou

IPC: H02K7/20 ,  H02K1/27 ,  H02K16/00 ,  H02K1/16 ,  H02K16/04 ,  H02K21/12

CPC classification number: H02K1/2706 ,  H02K1/16 ,  H02K1/27 ,  H02K16/00 ,  H02K16/04 ,  H02K21/12 ,  H02K2213/03

Abstract: A double-stator synchronous motor has a rotor, an inner stator and an outer stator. The rotor has segment-magnetic poles arranged in a ring shape. Magnetic poles formed in the inner stator and the outer stator face to each other in a same circumferential position. Each stator has q (q≧2) slots per pole and phase to disperse magnetomodive force. A radially minimum width Wr of each segment magnetic pole is within a range of 1.3q to 2.3q times of a minimum width Wt of outer teeth. A magnetic depth of a magnetic concave section formed in the segment magnetic pole is within a range of not less than an average width Ws of the inner slots. Because this suppresses demagnetization in the permanent magnets caused by stator magnetomotive force, ferrite magnets are used as buried magnets and magnetic-pole central magnets, and suppress the amount of neodymium magnet used in the rotor.

Abstract translation: 双定子同步电动机具有转子，内定子和外定子。 转子具有环状的分段磁极。 在内定子和外定子上形成的磁极在相同的圆周位置彼此面对。 每个定子每个极点有q（q≥2）个槽，相位分散磁力。 各段磁极的径向最小宽度Wr在外齿的最小宽度Wt的1.3q〜2.3q倍的范围内。 形成在分段磁极中的磁性凹部的磁深在不小于内槽的平均宽度Ws的范围内。 由于这抑制了由定子磁动势引起的永久磁铁的退磁，所以使用铁氧体磁体作为埋入磁铁和磁极中心磁体，并抑制转子中使用的钕磁铁的量。

公开(公告)号：US20130193782A1

公开(公告)日：2013-08-01

申请号：US13741859

申请日：2013-01-15

Applicant: DENSO CORPORATION

Inventor： Shin Kusase ,  Akira Fukushima

IPC: H02K1/06

CPC classification number: H02K1/06 ,  H02K7/11 ,  H02K7/112 ,  H02K16/00 ,  H02K16/02 ,  H02K51/00

Abstract: In a double drive shaft motor, a stator and a field rotor are arranged at a radially outer side of a magnetic modulation rotor. The stator and the field rotor are arranged in series in an axial direction of the motor. This structure increases an amount of a winding coil of the stator and magnets in the field rotor, and an output torque of the motor. When a field magnetic flux passes through soft magnetic material members in the magnetic modulation rotor, because the generation and the reception of the magnetic flux can occur at a radially same side of the magnetic modulation rotor, this structure cancels an eddy current generated in the soft magnetic members and supporting members made of non-magnetic metal which tightly support the soft magnetic member. This structure provides a reduced axial size of the motor with high performance.

Abstract translation: 在双驱动轴电机中，定子和励磁转子布置在磁调制转子的径向外侧。 定子和励磁转子沿马达的轴向串联配置。 这种结构增加了定子的绕组线圈和励磁转子中的磁体以及电动机的输出转矩。 当磁场磁通量通过磁调制转子中的软磁性材料部件时，由于磁通量的产生和接收可能发生在磁调制转子的径向相同的一侧，因此该结构抵消了软磁体中产生的涡流 磁性构件和由非磁性金属构成的支撑构件，其紧固地支撑软磁构件。 这种结构提供了具有高性能的电机的减小的轴向尺寸。