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公开(公告)号：US20190006898A1
公开(公告)日：2019-01-03
申请号：US15744692
申请日：2016-07-19
Applicant: ASMO CO., LTD.
Inventor： Seiya Yokoyama , Yoji Yamada , Koji Mikami , Akihisa Hattori
Abstract: A motor includes a stator having windings and a rotor. The rotor includes a rotor core and a first magnet magnetic pole, a second magnet magnetic pole, and a protrusion provided next to each other in the circumferential direction. The second magnet magnetic pole has an opposite polarity to the first magnet magnetic pole. The protrusion projects in the radial direction in the rotor core. The windings include a first winding and a second winding. The first winding and the second winding are excited at the same timing, and are serially connected. The protrusion faces the second winding at the rotor rotation position at which the first magnet magnetic pole or the second magnet magnetic pole faces the first winding.
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公开(公告)号：US09787148B2
公开(公告)日：2017-10-10
申请号：US14975394
申请日：2015-12-18
Applicant: ASMO CO., LTD.
Inventor： Yoji Yamada , Koji Mikami , Akihiro Utsumi , Akihisa Hattori , Chie Morita
CPC classification number: H02K1/2706 , H02K1/2713 , H02K1/2766 , H02K21/16
Abstract: A rotor of a motor includes first and second rotor cores, a field magnet, and a commutator magnet. The first and second rotor cores each include a core base and a plurality of claw poles. The claw poles of the first rotor core and the claw poles of the second rotor core are alternately arranged in a circumferential direction. The field magnet is located between the core bases. The field magnet is magnetized in an axial direction so that the claw poles of the first rotor core and the claw poles of the second rotor core function as different magnetic poles in the circumferential direction. The commutator magnet is located on an outer circumference of the field magnet around the claw poles. The commutator magnet is magnetized so that surfaces having the same polarity face each other between the claw poles and the commutator magnet.
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公开(公告)号：US09705365B2
公开(公告)日：2017-07-11
申请号：US14685157
申请日：2015-04-13
Applicant: ASMO CO., LTD.
Inventor： Yoji Yamada , Koji Mikami , Takahiro Tsuchiya
CPC classification number: H02K1/243 , H02K1/2713 , H02K1/2746 , H02K19/103 , H02K21/16
Abstract: A motor includes a stator, a rotor, a case, and back-surface magnet portions. The rotor has a first rotor core, a second rotor core and a field magnet. Each of the first and second rotor cores has a core base and claw-shaped magnetic poles. The field magnet is sandwiched between the first rotor core and the second rotor core and causes the claw-shaped magnetic poles of the first rotor core and the second rotor core to function as different magnetic poles. The back-surface magnet portions include a second and a first back-surface magnet portions respectively provided on the back surfaces of the claw-shaped magnetic poles of the second rotor core and the first rotor core. Size of the second back-surface magnet portion differs from size of the first back-surface magnet portion are different from each other.
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公开(公告)号：US09673669B2
公开(公告)日：2017-06-06
申请号：US14075958
申请日：2013-11-08
Applicant: ASMO CO., LTD.
Inventor： Yoji Yamada , Koji Mikami , Chie Morita , Takahiro Tsuchiya , Seiya Yokoyama , Takayoshi Suzuki
CPC classification number: H02K1/226 , H02K1/243 , H02K1/27 , H02K1/2713 , H02K1/28 , H02K15/022 , H02K15/03 , H02K21/16 , H02K2213/03
Abstract: A brushless motor includes a rotor. The rotor includes a first rotor core, a second rotor core and a field magnet. The first rotor core includes a plurality of first magnetic pole portions arranged in a circumferential direction. The second rotor core includes a plurality of second magnetic pole portions arranged in the circumferential direction. The field magnet is arranged between the first rotor core and the second rotor core in an axial direction. When the field magnet is magnetized in the axial direction, the first magnetic pole portions function as first magnetic poles and the second magnetic pole portions function as second magnetic poles.
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公开(公告)号：US09577496B2
公开(公告)日：2017-02-21
申请号：US14075942
申请日：2013-11-08
Applicant: ASMO CO., LTD.
Inventor： Shigemasa Kato , Yoji Yamada , Koji Mikami , Seiya Yokoyama
CPC classification number: H02K21/16 , H02K1/2706 , H02K1/2713 , H02K1/272 , H02K29/08
Abstract: A rotor includes a first rotor core, a second rotor core, a field magnet, and a detected portion. The first rotor core includes a first core base and a plurality of first claw-shaped magnetic pole portions. The second rotor core includes a second core base and a plurality of second claw-shaped magnetic pole portions. The first and second core bases face to each other, and the first and second claw-shaped magnetic pole portions are alternately arranged in the circumferential direction. The field magnet is located between the first and second core bases in the axial direction. The field magnet has the first claw-shaped magnetic pole portion function as a first magnetic pole and has the second claw-shaped magnetic pole portion function as a second magnetic pole. A detected portion, which generates a magnetic flux, is arranged at an outer axial end surface of the first rotor core.
Abstract translation: 转子包括第一转子铁心，第二转子铁芯，磁场磁铁和检测部分。 第一转子铁心包括第一铁心基体和多个第一爪形磁极部分。 第二转子铁芯包括第二铁心基体和多个第二爪形磁极部分。 第一和第二芯基体彼此面对，并且第一和第二爪形磁极部分在圆周方向上交替布置。 场磁体位于第一和第二芯基座之间的轴向方向上。 场磁体具有第一爪形磁极部分作为第一磁极，并且第二爪形磁极部分用作第二磁极。 产生磁通的检测部分设置在第一转子铁芯的外轴向端面上。
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Patent Agency Ranking
公开(公告)号：US09490670B2
公开(公告)日：2016-11-08
申请号：US14495492
申请日：2014-09-24
Applicant: ASMO CO., LTD.
Inventor： Takahiro Tsuchiya , Chie Morita , Yoji Yamada , Koji Mikami
CPC classification number: H02K1/243 , H02K1/2713 , H02K1/2733 , H02K21/044 , H02K21/16
Abstract: A rotor includes first and second rotor cores, a disk magnet, and a rectifying magnet. The first and second rotor cores each include a core base and claw-poles. The disk magnet is magnetized in the axial direction so that the claw-poles of the first rotor core function as first poles and the claw-poles of the second rotor core function as second poles. The rectifying magnet includes at least an inter-pole magnet portion or a back-surface magnet portion. The inter-pole magnet portion is located in a gap formed in the circumferential direction between the claw-poles of the first rotor core and the claw-poles of the second rotor core. The back surface magnet portion is located in a gap formed at back surfaces of the claw-poles. The rectifying magnet and the disk magnet are formed from different materials. The rectifying magnet is integrated with the disk magnet in a post-process.
Abstract translation: 转子包括第一和第二转子芯，磁盘磁体和整流磁体。 第一和第二转子芯每个包括芯基部和爪极。 磁盘磁体沿轴向磁化，使得第一转子芯的爪极用作第一极，第二转子芯的爪极用作第二极。 整流磁铁至少包括极间磁铁部分或背面磁铁部分。 极间磁铁部分位于第一转子铁心的爪极与第二转子铁心的爪极之间沿圆周方向形成的间隙。 背面磁铁部位于形成在爪极的背面的间隙。 整流磁铁和磁盘磁体由不同的材料形成。 在后期处理中，整流磁体与磁盘磁体一体化。
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公开(公告)号：US09490669B2
公开(公告)日：2016-11-08
申请号：US13966020
申请日：2013-08-13
Applicant: ASMO CO., LTD.
Inventor： Yoji Yamada
CPC classification number: H02K1/243 , H02K1/2706 , H02K1/2713 , H02K1/2766 , H02K21/044
Abstract: A rotor includes a first rotor core, a second rotor core, a field magnet, and a back magnet. The first rotor core includes a disk-shaped first core base and a plurality of first claw-poles. The second rotor core includes a disk-shaped second core base and a plurality of second claw-poles. The field magnet has the first claw-poles function as first magnetic poles and the second claw-poles function as second magnetic poles. The back magnet is arranged along back surfaces of the first and second claw-poles. The back magnet is magnetized such that radially outer sections have the polarities that are the same as the first and second magnetic poles. The back magnet is formed integrally, has an annular shape, and is in contact with all of the back surfaces of the first and second claw-poles.
Abstract translation: 转子包括第一转子铁心，第二转子铁芯，磁场磁铁和后磁铁。 第一转子铁芯包括盘状的第一铁心基体和多个第一爪极。 第二转子铁芯包括盘状的第二铁心基体和多个第二爪极。 场磁铁具有作为第一磁极的第一爪极功能，第二爪极用作第二磁极。 后磁铁沿第一爪极和第二爪极的后表面布置。 后磁体被磁化，使得径向外部部分具有与第一和第二磁极相同的极性。 后磁体一体形成，具有环状，与第一爪极和第二爪极的所有后表面接触。
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公开(公告)号：US09239058B2
公开(公告)日：2016-01-19
申请号：US13662834
申请日：2012-10-29
Applicant: ASMO Co., Ltd.
Inventor： Yoji Yamada , Chie Morita , Yoko Tateishi , Yuuki Fujii , Seiya Yokoyama
Abstract: A rotor includes a first rotor core, a second rotor core, a field magnet, and an auxiliary magnet. The first rotor core includes a first core base and a plurality of first hook-shaped poles. The second rotor core includes a second core base and a plurality of second hook-shaped poles. The first and second hook-shaped poles are alternately arranged in a circumferential direction of the rotor. The field magnet is arranged between the first and second core bases in an axial direction. The field magnet cause the first hook-shaped poles to function as first poles and the second hook-shaped poles to function as second poles. The auxiliary magnet includes at least two interpolar magnet portions, which are integrally formed. Each interpolar magnet portion is arranged in a void between the first hook-shaped pole and the second hook-shaped pole and magnetized in the circumferential direction.
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公开(公告)号：US20150295458A1
公开(公告)日：2015-10-15
申请号：US14685157
申请日：2015-04-13
Applicant: ASMO CO., LTD.
Inventor： Yoji Yamada , Koji Mikami , Takahiro Tsuchiya , Hironari Suzuki , Seiya Yokoyama
CPC classification number: H02K1/243 , H02K1/2713 , H02K1/2746 , H02K19/103 , H02K21/16
Abstract: A motor includes a stator, a rotor, a case, and back-surface magnet portions. The rotor has a first rotor core, a second rotor core and a field magnet. Each of the first and second rotor cores has a core base and claw-shaped magnetic poles. The field magnet is sandwiched between the first rotor core and the second rotor core and causes the claw-shaped magnetic poles of the first rotor core and the second rotor core to function as different magnetic poles. The back-surface magnet portions include a second and a first back-surface magnet portions respectively provided on the back surfaces of the claw-shaped magnetic poles of the second rotor core and the first rotor core. Size of the second back-surface magnet portion differs from size of the first back-surface magnet portion are different from each other.
Abstract translation: 电动机包括定子，转子，壳体和后表面磁体部分。 转子具有第一转子芯，第二转子芯和场磁体。 第一和第二转子芯中的每一个具有芯基部和爪形磁极。 场磁体被夹在第一转子铁心和第二转子铁芯之间，并使第一转子铁心和第二转子铁心的爪形磁极作为不同的磁极发挥作用。 后表面磁体部分包括分别设置在第二转子芯和第一转子芯的爪形磁极的后表面上的第二和第一后表面磁体部分。 第二后表面磁体部分的尺寸与第一背面磁体部分的尺寸不同。
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公开(公告)号：US20150115760A1
公开(公告)日：2015-04-30
申请号：US14524623
申请日：2014-10-27
Applicant: ASMO CO., LTD.
Inventor： Takahiro Tsuchiya , Chie Morita , Yoji Yamada , Shigemasa Kato , Koji Mikami
IPC: H02K1/27
CPC classification number: H02K1/2733 , H02K1/2713 , H02K2213/03
Abstract: A rotor includes a first rotor core, a second rotor core, a first magnet, a second magnet, and an annular magnet. The first magnet is arranged between first extensions of the first rotor core. The annular magnet, which is arranged between second extensions of the second rotor core, is held between the first core base and the second core base. The first magnet and the second magnet are formed integrally.
Abstract translation: 转子包括第一转子铁芯，第二转子铁芯，第一磁体，第二磁体和环形磁体。 第一磁体布置在第一转子芯的第一延伸部之间。 布置在第二转子芯的第二延伸部之间的环形磁体保持在第一芯基体和第二芯基体之间。 第一磁体和第二磁体一体形成。
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