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公开(公告)号：US08890386B2
公开(公告)日：2014-11-18
申请号：US13662722
申请日：2012-10-29
Applicant: ASMO Co., Ltd.
Inventor： Chie Morita , Yoji Yamada , Seiya Yokoyama
CPC classification number: H02K1/27 , H02K1/2713 , H02K1/2733 , H02K1/278
Abstract: A rotor includes first and second rotor cores and a field magnet placed between the first and second rotor cores. Each of the rotor cores has a main body portion and a plurality of extensions, which extend radially outward from the main body portion at equal intervals in the circumferential direction. The field magnet causes the individual extensions to function as magnetic poles. A magnetic pole constituting section including at least part of each of the extensions and the first main body portion of each rotor core are made of different materials, made of the same material but formed as separate elements, or includes regions having different properties.
Abstract translation: 转子包括第一和第二转子芯和放置在第一和第二转子芯之间的场磁体。 每个转子铁心具有主体部分和多个延伸部，其沿圆周方向以相等的间隔从主体部分径向向外延伸。 场磁铁使各个延伸部分作为磁极。 包括每个转子芯的每个延伸部和第一主体部分的至少一部分的磁极构成部分由不同的材料制成，由相同的材料制成，但是形成为单独的元件，或者包括具有不同特性的区域。
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公开(公告)号：US20140265703A1
公开(公告)日：2014-09-18
申请号：US14288099
申请日：2014-05-27
Applicant: Asmo Co., Ltd.
Inventor： Yoji Yamada , Seiya Yokoyama , Keisuke Koide , Yoshiaki Takemoto , Shigemasa Kato , Toshihiro Uchida
IPC: H02K1/24
CPC classification number: H02K1/24 , H02K1/274 , H02K1/2746 , H02K1/278 , H02K2213/03
Abstract: A motor including a stator and a rotor. The stator includes teeth and windings. Each tooth has a distal portion defined by a radially inward side of the stator. The rotor, which is arranged inward in the radial direction from the stator, includes a rotor core, magnets, and salient poles. Each salient pole is separated by a void from the magnet that is adjacent in the circumferential direction. The distal portion of each tooth is longer than a radially outward side of each magnet.
Abstract translation: 一种包括定子和转子的电动机。 定子包括齿和绕组。 每个齿具有由定子的径向向内侧限定的远侧部分。 从定子向径向配置的转子包括转子铁心，磁铁和凸极。 每个凸极由与圆周方向相邻的磁体的空隙分开。 每个齿的远端部分比每个磁体的径向外侧长。
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公开(公告)号：US20130113329A1
公开(公告)日：2013-05-09
申请号：US13662781
申请日：2012-10-29
Applicant: ASMO Co., Ltd.
Inventor： Seiya Yokoyama , Yoji Yamada
IPC: H02K1/27
CPC classification number: H02K1/27 , H02K1/2706
Abstract: A rotor is provided with a first rotation member having a plurality of first claw poles in a circumferential direction and a second rotation member having a plurality of second claw poles in a circumferential direction. By of fitting each second claw pole in a cutout portion between first claw poles and by fitting each first claw pole in a cutout portion between second claw poles, the first rotation member and the second rotation member are assembled to each other. At least either one of the first rotation member and the second rotation member is formed of a magnet. Based on a magnetic field generated by the magnet, the first claw poles and the second claw poles have alternating north poles and south poles in the circumferential direction.
Abstract translation: 转子设置有沿圆周方向具有多个第一爪极的第一旋转构件和在圆周方向上具有多个第二爪极的第二旋转构件。 通过将每个第二爪极装配在第一爪极之间的切口部分中并且通过将每个第一爪极装配在第二爪极之间的切口部分中，将第一旋转构件和第二旋转构件彼此组装。 第一旋转构件和第二旋转构件中的至少一个由磁体形成。 基于由磁体产生的磁场，第一爪极和第二爪极在圆周方向上具有交替的北极和南极。
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公开(公告)号：US09859761B2
公开(公告)日：2018-01-02
申请号：US14158273
申请日：2014-01-17
Applicant: ASMO CO., LTD.
Inventor： Yoji Yamada , Chie Morita , Seiya Yokoyama , Koji Mikami , Takahiro Tsuchiya
CPC classification number: H02K1/2713 , H02K1/226 , H02K1/243 , H02K1/2706 , H02K1/2733 , H02K1/274 , H02K1/2753 , H02K1/276 , H02K1/2773
Abstract: A rotor includes a first rotor core, a second rotor core, a permanent magnet and a resin layer. The first rotor core includes a first core base and first claw-shaped magnetic poles arranged at equal intervals on a peripheral portion of the first core base. The second rotor core includes a second core base and second claw-shaped magnetic poles arranged at equal intervals on a peripheral portion of the second core base. The first rotor core and the second rotor core are combined with each other so that the first and second core bases are opposed to each other and the first and second claw-shaped magnetic poles are alternately arranged in the circumferential direction of the rotor. The permanent magnet includes at least a main field magnet. The main field magnet is located between the first and second core bases in the axial direction, and is magnetized in the axial direction. The main field magnet causes the first claw-shaped magnetic poles to function as first magnetic poles, and causes the second claw-shaped magnetic poles to function as second magnetic poles. The resin layer covers at least a portion of a surface of the permanent magnet.
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公开(公告)号：US20170366050A1
公开(公告)日：2017-12-21
申请号：US15627086
申请日：2017-06-19
Applicant: ASMO CO., LTD.
Inventor： Akihisa Hattori , Seiya Yokoyama , Yoji Yamada
CPC classification number: H02K1/02 , H02K1/2793 , H02K1/28 , H02K16/02 , H02K16/04 , H02K21/24 , H02K2213/03
Abstract: An axial gap motor rotor opposes a stator in an axial direction. The axial gap motor rotor includes a rotor core and a magnet. The magnet is arranged on the rotor core. The magnet is configured so that one axial end includes magnetic poles that alternately change in a circumferential direction. The rotor core includes a base, which is located at a center in a radial direction, and radial extensions, which are extended from the base outward in the radial direction and arranged in the circumferential direction. The magnet is configured to at least partially overlap the radial extensions in the axial direction. The radial extensions are located to include a boundary of adjacent ones of the magnetic poles in the circumferential direction.
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Patent Agency Ranking
公开(公告)号：US09667107B2
公开(公告)日：2017-05-30
申请号：US14288099
申请日：2014-05-27
Applicant: Asmo Co., Ltd.
Inventor： Yoji Yamada , Seiya Yokoyama , Keisuke Koide , Yoshiaki Takemoto , Shigemasa Kato
CPC classification number: H02K1/24 , H02K1/274 , H02K1/2746 , H02K1/278 , H02K2213/03
Abstract: A motor including a stator and a rotor. The stator includes teeth and windings. Each tooth has a distal portion defined by a radially inward side of the stator. The rotor, which is arranged inward in the radial direction from the stator, includes a rotor core, magnets, and salient poles. Each salient pole is separated by a void from the magnet that is adjacent in the circumferential direction. The distal portion of each tooth is longer than a radially outward side of each magnet.
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公开(公告)号：US09502931B2
公开(公告)日：2016-11-22
申请号：US13831641
申请日：2013-03-15
Applicant: ASMO CO., LTD.
Inventor： Yoji Yamada
CPC classification number: H02K1/2706 , H02K1/14 , H02K1/24 , H02K1/2713 , H02K1/2746 , H02K3/18 , H02K3/28 , H02K7/083 , H02K16/02 , H02K21/12 , H02K21/14
Abstract: A brushless motor includes a first rotor core, a second rotor core, and a field magnet member. The first rotor core includes primary projecting pieces arranged along a circumferential direction at equal intervals. The second rotor core has the same shape as the first rotor core, and includes secondary projecting pieces arranged along the circumferential direction at equal intervals. The secondary projecting pieces are positioned between the primary projecting pieces that are adjacent to one another in the circumferential direction. The field magnet member is arranged between the first rotor core and the second rotor core. The field magnet member is magnetized along an axial direction to generate primary magnetic poles in the primary projecting pieces, and generate secondary magnetic poles in the secondary projecting pieces. A rotor includes the first rotor core, the second rotor core, and the field magnet member.
Abstract translation: 无刷电动机包括第一转子铁心，第二转子铁心和励磁磁铁构件。 第一转子芯包括以等间隔沿圆周方向布置的主突出片。 第二转子铁芯具有与第一转子铁芯相同的形状，并且包括沿着圆周方向等间隔布置的次级突出片。 二次突出片位于沿圆周方向彼此相邻的主突出片之间。 场磁体构件布置在第一转子芯和第二转子芯之间。 磁场部件沿着轴向磁化，在主突出片中产生初级磁极，在二次突出片中产生副磁极。 转子包括第一转子铁心，第二转子铁心和励磁磁铁构件。
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公开(公告)号：US09143013B2
公开(公告)日：2015-09-22
申请号：US13662810
申请日：2012-10-29
Applicant: ASMO Co., Ltd.
Inventor： Yoji Yamada , Chie Morita , Yoshiaki Takemoto , Makoto Morisaki
CPC classification number: H02K1/243 , H02K1/2706 , H02K1/2713 , H02K1/276 , H02K1/2773 , H02K16/02
Abstract: A rotor having an axial direction includes at least a pair of rotor cores arranged in the axial direction, and a field magnet located between the rotor cores and magnetized in the axial direction. Each of the rotor cores includes a plurality of claw poles extending in the axial direction. Each of the rotor cores includes a magnetic flux controlling section, which appropriately causes a magnetic flux to flow to the claw poles.
Abstract translation: 具有轴向的转子包括沿轴向布置的至少一对转子芯和位于转子芯之间并沿轴向被磁化的磁场磁体。 每个转子芯包括在轴向方向上延伸的多个爪极。 每个转子铁心包括适当地引起磁通量流向爪极的磁通量控制部分。
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公开(公告)号：US20130113323A1
公开(公告)日：2013-05-09
申请号：US13662810
申请日：2012-10-29
Applicant: ASMO Co., Ltd.
Inventor： Yoji Yamada , Chie Morita , Yoshiaki Takemoto , Makoto Morisaki
IPC: H02K1/24
CPC classification number: H02K1/243 , H02K1/2706 , H02K1/2713 , H02K1/276 , H02K1/2773 , H02K16/02
Abstract: A rotor having an axial direction includes at least a pair of rotor cores arranged in the axial direction, and a field magnet located between the rotor cores and magnetized in the axial direction. Each of the rotor cores includes a plurality of claw poles extending in the axial direction. Each of the rotor cores includes a magnetic flux controlling section, which appropriately causes a magnetic flux to flow to the claw poles.
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公开(公告)号：US10270306B2
公开(公告)日：2019-04-23
申请号：US14603879
申请日：2015-01-23
Applicant: ASMO CO., LTD.
Inventor： Yoji Yamada , Takahiro Tsuchiya , Chie Morita
Abstract: A motor includes a stator, a rotor, and a case. The stator includes a stator core and windings. The rotor is provided inside the stator. The rotor includes first and second rotor cores and a field magnet. The first and second rotor cores each includes a core base and claw-shaped magnetic poles. The core bases are opposed to each other and the claw-shaped magnetic poles of the first and second rotor cores are alternately disposed in a circumferential direction. The field magnet is disposed between the core bases in the axial direction. The field magnet is magnetized in the axial direction so as to cause the claw-shaped magnetic poles of the first rotor core and the second rotor core to function respectively as first magnetic poles and second magnetic poles. At least part of an end part of the case in the axial direction is made of a non-magnetic body.
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