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公开(公告)号：US10424981B2
公开(公告)日：2019-09-24
申请号：US15421932
申请日：2017-02-01
Applicant: DENSO CORPORATION
Inventor： Shin Kusase
Abstract: A rotating electric machine includes an armature and a field rotor. The field rotor includes magnetic pole teeth, an annular body portion, a bypass gap portion and permanent magnets. The magnetic pole teeth are arranged so that the polarities thereof alternate between N and S in a circumferential direction of the field rotor. The annular body portion connects the magnetic pole teeth at their root portions. The bypass gap portion is provided on an opposite side of the annular body portion to the magnetic pole teeth. The permanent magnets are provided in the annular body portion so as to be spaced from one another in the circumferential direction. The bypass gap portion includes first magnetic gaps each of which is formed adjacent to one of the permanent magnets. Each of the permanent magnets is arranged within an inter-pole angular range between one circumferentially-adjacent pair of the magnetic pole teeth.
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公开(公告)号：US10193428B2
公开(公告)日：2019-01-29
申请号：US14874995
申请日：2015-10-05
Applicant: DENSO CORPORATION
Inventor： Shin Kusase
Abstract: In an electric rotating machine, a stator has an armature coil wound around an armature core segments with M pairs of poles, and N pairs of field sources (field coil and field magnetic field), a rotor has K soft magnetic members including a plurality of protrusions on a side facing the stator, and the armature coil, the field sources, and the soft magnetic members satisfy a relational expression of |M±N|=K. With this configuration, rotors are rotated based on the magnetic modulation principle, so that field poles can have alternating electromagnetic action on the armature coil, and the performance of the electric rotating machine can be improved with a brushless structure.
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Patent Agency Ranking
公开(公告)号：US10020698B2
公开(公告)日：2018-07-10
申请号：US14100039
申请日：2013-12-09
Applicant: DENSO CORPORATION
Inventor： Keiji Kondou , Shin Kusase , Takeo Maekawa
CPC classification number: H02K1/276 , H02K1/27 , H02K1/2706 , H02K1/2766 , H02K3/12 , H02K16/04 , H02K21/12 , H02K2213/03
Abstract: A multi-gap type rotary electric machine is provided, where the machine is provided a shaft supported rotatably by a baring secured to a housing. An annular rotor is secured to the shaft and configured to rotate together with the shaft. Double stators are secured to the housing and configured to have gaps between the stators and the rotor. Relationships of: 3.5 1 (2) are met, where P6 denotes a circumferential width of each of outer salient poles, P7 denotes a circumferential width of each of inner salient poles, and P13 denotes a circumferential width of each of the outer magnets.
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公开(公告)号：US10020697B2
公开(公告)日：2018-07-10
申请号：US14831114
申请日：2015-08-20
Applicant: DENSO CORPORATION
Inventor： Keiji Kondou , Shin Kusase , Takeo Maekawa , Hiroshi Kaneiwa , Masayoshi Yamamoto
Abstract: A double-stator electric rotating machine with a retainer. The retainer includes a connector which joints between an outer stator and an inner stator. The retainer is placed in contact with an outer peripheral surface of the outer stator and an inner peripheral surface of the inner stator to retain the outer and inner stators together. Specifically, the retainer works to join the outer stator and the inner stator together and also to tightly hold the outer periphery of the outer stator and the inner periphery of the inner stator, thus minimizing misalignment of the outer and inner stators in axial and radial directions there of.
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公开(公告)号：US09979267B2
公开(公告)日：2018-05-22
申请号：US14802630
申请日：2015-07-17
Applicant: DENSO CORPORATION
Inventor： Shin Kusase , Keiji Kondou , Takeo Maekawa
CPC classification number: H02K16/04 , H02K1/27 , H02K3/12 , H02K21/12 , H02K2213/03
Abstract: A double-stator rotating electric machine includes a rotor and a pair of outer and inner stators. The outer stator has a first multi-phase coil wound thereon so as to form magnetic poles upon energization of the first multi-phase coil. The inner stator has a second multi-phase coil wound thereon so as to form magnetic poles upon energization of the second multi-phase coil. The number of the magnetic poles formed by the outer stator is equal to the number of the magnetic poles formed by the inner stator. Each of the magnetic poles formed by the outer stator is located at the same circumferential position as and has an opposite polarity to a corresponding one of the magnetic poles formed by the inner stator. The rotor has yoke portions each of which radially extends so as to form a magnetic flux passage magnetically connecting the outer and inner stators.
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公开(公告)号：US09252634B2
公开(公告)日：2016-02-02
申请号：US13737377
申请日：2013-01-09
Applicant: DENSO CORPORATION
Inventor： Keiji Kondou , Shin Kusase , Takeo Maekawa
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，该定子包括定子铁心，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。
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公开(公告)号：US09059614B2
公开(公告)日：2015-06-16
申请号：US13667075
申请日：2012-11-02
Applicant: DENSO CORPORATION
Inventor： Keiji Kondou , Shin Kusase , Takeo Maekawa
Abstract: In a multi-gap type electric rotating machine, side cores include an outside-side core connected to one end side of an outside core, and an inside-side core connected to one end side of an inside core. The outside-side core includes an outer-side rotor-opposite portion which projects from the inner periphery end of the outside core and is opposite to an end face at the outer periphery side of a rotor. The inside-side core includes an inner-side rotor-opposite portion which projects from the outer periphery end of the inside core and is opposite to an end face at the inner periphery side of the rotor. The outside-side core and the inside-side core are arranged so as to be opposed to each other in the radial direction thereof with a gap being interposed between the inner periphery end of the outer-side rotor-opposite portion and the outer periphery end of the inner-side rotor-opposite portion.
Abstract translation: 在多间隙型旋转电机中，侧芯包括与外芯的一端侧连接的外侧芯和与内芯的一端侧连接的内侧芯。 外侧芯部具有从外侧芯部的内周端突出并与转子的外周侧的端面相反的外侧转子对置部。 内侧铁心包括从内侧芯的外周端突出并与转子内周侧的端面相反的内侧转子对置部。 外侧芯部和内侧芯部在径向上彼此相对配置，在外侧转子相对部分的内周端和外侧端部之间插入有间隙 的内侧转子相对部分。
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