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公开(公告)号：US20130076195A1
公开(公告)日：2013-03-28
申请号：US13636303
申请日：2011-03-24
申请人： Hu Li , Yuichi Yoshikawa , Hiroshi Murakami , Haruhiko Kado , Kiyomi Kawamura
发明人： Hu Li , Yuichi Yoshikawa , Hiroshi Murakami , Haruhiko Kado , Kiyomi Kawamura
IPC分类号： H02K1/16
CPC分类号： H02K1/146 , H02K1/16 , H02K1/165 , H02K1/2733 , H02K3/18 , H02K21/16 , H02K29/03 , H02K2213/03
摘要： A motor of this invention comprises a rotor having a permanent magnet, the number of which magnet poles is P, and a stator including M pcs of teeth, the teeth arranged in a circumferential direction in a manner to face the permanent magnet through a spatial gap, wherein the stator includes stator core having the number M of the teeth, and a winding wire wound about each of the tooth, wherein the number P of the magnet poles and the number M of the teeth have a relation defined by formulae (2/3)M
摘要翻译： 本发明的电动机包括具有永磁体的转子，磁极数为P的定子和包括M个齿的定子，所述齿沿圆周方向以通过空间间隙面对永磁体的方式布置 其特征在于，所述定子包括具有齿数M的定子铁芯和围绕各齿缠绕的绕组线，其中，所述磁极的数量P和所述齿的数量M具有由公式（2 / 3）M
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公开(公告)号：US08207648B2
公开(公告)日：2012-06-26
申请号：US12738770
申请日：2009-10-09
申请人： Hu Li , Yuichi Yoshikawa , Hiroshi Murakami
发明人： Hu Li , Yuichi Yoshikawa , Hiroshi Murakami
CPC分类号： H02K16/02 , H02K1/146 , H02K1/278 , H02K1/2786
摘要： A dual-rotor motor in which inner slot angle φi is larger than outer slot angle φo. An inner notched portion is provided on both circumferential ends of an inner head. This inner notched portion provides a broader space between the inner head and an inner rotor toward both utmost ends of the inner head. An outer notched portion is provided on both circumferential ends of an outer head. This outer notched portion provides a broader space between the outer head and the outer rotor toward both utmost ends of the outer head.
摘要翻译： 一个双转子电动机，其中内槽角度θ大于外槽角度θ。 在内头部的两个周向端部设置有内切口部。 该内切口部分在内头部和内转子之间朝向内头部的最末端提供更宽的空间。 在外头部的两个周向端部设置有外部切口部。 该外切口部分朝向外头部的两个最末端在外头部和外转子之间提供更宽的空间。
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公开(公告)号：US08159106B2
公开(公告)日：2012-04-17
申请号：US12813201
申请日：2010-06-10
申请人： Yuichi Yoshikawa , Hiroaki Kawasaki , Kenji Sugiura , Hiroshi Ueda , Hiroki Asai
发明人： Yuichi Yoshikawa , Hiroaki Kawasaki , Kenji Sugiura , Hiroshi Ueda , Hiroki Asai
IPC分类号： H02K1/00
CPC分类号： H02K29/03 , H02K1/146 , H02K1/2786
摘要： A stator 13 on whose outer circumference a plurality of magnetic poles 13a are arranged is mounted on a substrate 11, and a rotor 14 is rotatably disposed around the stator. The inner circumferential face of the rotor is provided with a magnet 15 magnetized to have alternately opposite polarities in a direction opposing the stator, and magnetized to have alternately opposite polarities in a direction opposing the substrate. The outer circumferential ends of the magnetic poles of the stator are provided with a first extended portion 13c that extends from a magnetic pole base 13d to the substrate side, and a second extended portion 13b that extends from the magnetic pole base to a side opposite the substrate side. A face of the substrate opposing the rotor is provided with a FG pattern 19 outside the outer circumferential face of the stator such that the FG pattern opposes the magnet. Accordingly, it is possible to improve the precision in detecting the rotational speed by reducing noise superimposed on the FG signal, while securing a high driving efficiency.
摘要翻译： 在其外周配置有多个磁极13a的定子13安装在基板11上，并且转子14围绕定子可旋转地设置。 转子的内周面设置有磁体15，磁体15在与定子相对的方向上具有相反的极性，并且在与基板相对的方向上被磁化成具有相反的极性。 定子的磁极的外周端设置有从磁极基部13d延伸到基板侧的第一延伸部13c和从磁极基部延伸到与磁极基部相反的一侧的第二延伸部13b 衬底侧。 与转子相对的基板的表面在定子的外周面的外侧设置有FG图案19，使得FG图案与磁体相对。 因此，在确保高驱动效率的同时，通过降低叠加在FG信号上的噪音来提高检测转速的精度。
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公开(公告)号：US08134266B2
公开(公告)日：2012-03-13
申请号：US12596756
申请日：2008-04-03
申请人： Hu Li , Yuichi Yoshikawa , Hiroshi Murakami
发明人： Hu Li , Yuichi Yoshikawa , Hiroshi Murakami
IPC分类号： H02K21/12
CPC分类号： H02K21/16 , H02K1/278 , H02K1/2786 , H02K21/222 , H02K29/03
摘要： It comprises stator including stator core having yoke and a plurality of teeth protruded from yoke, which is formed with slots between adjacent teeth, and rotor having rotor core and permanent magnet formed with a plurality of magnetic poles, which confronts tip ends of teeth via gaps, wherein rotor core is formed by rotor core materials circumferentially equally divided into the predetermined number of divisions, and the least common multiple being N for the number of slots and the number of magnetic poles and the least common multiple being M for the number of slots and the number of divisions, then N is equal to M.
摘要翻译： 它包括定子，该定子包括具有磁轭的定子铁心和从磁轭突出的多个齿，其在相邻的齿之间形成有槽，转子具有形成有多个磁极的转子芯和永磁体，该多个磁极通过间隙 ，其中转子芯由周向等分成预定数量的分割的转子芯材料形成，并且对于槽数，最小公倍数为N个，并且对于槽数，最小公倍数为N个，磁极数和最小公倍数为M 和分割数，则N等于M.
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公开(公告)号：US20100295401A1
公开(公告)日：2010-11-25
申请号：US12160667
申请日：2007-01-09
摘要： A motor includes a stator which includes: a stator core having an annular stator yoke, a plurality of outer teeth projecting outward from the stator yoke, and a plurality of inner teeth having the same number of teeth as the outer teeth and projecting inward from the stator yoke; and a plurality of windings wound on the stator core, and the motor includes an outer rotor confronting the outer teeth via an air gap and an inner rotor confronting the inner teeth via an air gap. The outer rotor and the inner rotor have holes for accommodating permanent magnets respectively. The permanent magnets having a rectangular shape in sectional views thereof are accommodated in the holes.
摘要翻译： 一种电动机包括定子，该定子包括：具有环形定子磁轭的定子芯，从定子磁轭向外突出的多个外齿，以及与外齿相同齿数的多个内齿， 定子轭; 以及缠绕在所述定子铁心上的多个绕组，所述电动机包括经由空气间隙面对所述外齿的外转子和经由气隙与所述内齿相对的内转子。 外转子和内转子分别具有用于容纳永磁体的孔。 具有矩形截面的永磁体容纳在孔中。
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公开(公告)号：US20100259126A1
公开(公告)日：2010-10-14
申请号：US12741460
申请日：2008-11-12
申请人： Yuichi Yoshikawa , Hiroshi Murakami , Atsuyoshi Koshiba , Haruki Kato , Yasuo Kunishige , Koji Kadowaki , Hiroyuki Asai
发明人： Yuichi Yoshikawa , Hiroshi Murakami , Atsuyoshi Koshiba , Haruki Kato , Yasuo Kunishige , Koji Kadowaki , Hiroyuki Asai
IPC分类号： H02K1/14
CPC分类号： H02K1/2706 , H02K1/146 , H02K1/148 , H02K1/187 , H02K11/20 , H02K11/215 , H02K21/222
摘要： A motor comprising a stator having a plurality of magnetic poles disposed in a circumferential direction along an outer periphery thereof, a rotor disposed rotatably around the outer periphery of the stator, and a magnet disposed in a circumferential direction along an inner periphery of the rotor. The stator is formed by laminating sheet-like plates. A plurality of the sheet-like plates including an outermost layer of this laminated body comprises a flat portion substantially perpendicular to the magnet, and an extended portion bent to a direction substantially parallel to the magnet. A part of the sheet-like plate having the extended portion disposed to the outermost side is formed into a thickness smaller than thicknesses of the other parts.
摘要翻译： 一种电动机，其具有沿着其外周沿圆周方向设置的多个磁极的定子，围绕所述定子的外周可旋转地设置的转子和沿着所述转子的内周沿周向配置的磁体。 定子通过层压板状板形成。 包括该层压体的最外层的多个片状板包括基本上垂直于磁体的平坦部分和向基本平行于磁体的方向弯曲的延伸部分。 具有设置在最外侧的延伸部的片状板的一部分形成为比其他部分的厚度小的厚度。
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公开(公告)号：US20100244637A1
公开(公告)日：2010-09-30
申请号：US12744159
申请日：2008-12-11
申请人： Yuichi Yoshikawa , Hiroshi Murakami , Atsuyoshi Koshiba , Koji Kadowaki , Haruki Kato , Yasuo Kunishige
发明人： Yuichi Yoshikawa , Hiroshi Murakami , Atsuyoshi Koshiba , Koji Kadowaki , Haruki Kato , Yasuo Kunishige
摘要： A motor comprises a stator having a plurality of magnetic poles disposed at first predetermined intervals along an outer periphery thereof, and a rotor having a permanent magnet with poles magnetized alternately to have different polarities at second predetermined intervals and disposed rotatably around the outer periphery of the stator with a predetermined gap. The magnetic poles of the stator has extended portions formed in a manner to extend from magnetic polar bases into a direction generally parallel to the permanent magnet, and the extended portions are formed of a high-permeability magnetic steel sheet with silicon content less than 3.0 wt-%.
摘要翻译： 一种电动机包括：定子，具有沿着其外周以第一预定间隔设置的多个磁极;以及转子，其具有交替磁化的磁极，其具有以第二预定间隔具有不同极性的永久磁铁， 定子具有预定的间隙。 定子的磁极具有延伸部，其形成为从磁性极性基底延伸到大致平行于永磁体的方向，并且延伸部由硅含量小于3.0重量％的高磁导率磁钢板形成 - ％。
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公开(公告)号：US20100058817A1
公开(公告)日：2010-03-11
申请号：US12594279
申请日：2008-04-08
申请人： Yuichi Yoshikawa , Hu Li , Masahiko Morisaki , Hiroshi Murakami , Yuichiro Tashiro , Yoshio Kobayashi , Takeshi Kowa , Yukinori Nakagawa
发明人： Yuichi Yoshikawa , Hu Li , Masahiko Morisaki , Hiroshi Murakami , Yuichiro Tashiro , Yoshio Kobayashi , Takeshi Kowa , Yukinori Nakagawa
IPC分类号： D06F25/00
CPC分类号： D06F37/304 , H02K1/278 , H02K1/2786 , H02K21/16 , H02K21/222
摘要： A drum type washing machine of the present invention is a direct-drive washing machine including a washing-machine casing; a rotating drum with its drum rotation shaft horizontal or inclined; and a motor driving the rotating drum. The motor has a stator including a coil wound in a toroidal winding form and first molding resin; and a twin-type rotor including an outer rotor, an inner rotor, and second molding resin integrally molding them.
摘要翻译： 本发明的滚筒式洗衣机是包括洗衣机外壳的直驱式洗衣机， 旋转鼓的旋转轴水平或倾斜; 以及驱动旋转滚筒的马达。 电动机具有定子，该定子包括以环形绕组形式缠绕的线圈和第一模制树脂; 以及包括外转子，内转子和第二模塑树脂一体成型的双型转子。
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公开(公告)号：US20100045131A1
公开(公告)日：2010-02-25
申请号：US12596756
申请日：2008-04-03
申请人： Hu Li , Yuichi Yoshikawa , Hiroshi Murakami
发明人： Hu Li , Yuichi Yoshikawa , Hiroshi Murakami
IPC分类号： H02K21/12
CPC分类号： H02K21/16 , H02K1/278 , H02K1/2786 , H02K21/222 , H02K29/03
摘要： It comprises stator including stator core having yoke and a plurality of teeth protruded from yoke, which is formed with slots between adjacent teeth, and rotor having rotor core and permanent magnet formed with a plurality of magnetic poles, which confronts tip ends of teeth via gaps, wherein rotor core is formed by rotor core materials circumferentially equally divided into the predetermined number of divisions, and the least common multiple being N for the number of slots and the number of magnetic poles and the least common multiple being M for the number of slots and the number of divisions, then N is equal to M.
摘要翻译： 它包括定子，该定子包括具有磁轭的定子铁心和从磁轭突出的多个齿，其在相邻的齿之间形成有槽，转子具有形成有多个磁极的转子芯和永磁体，该多个磁极通过间隙 ，其中转子芯由周向等分成预定数量的分割的转子芯材料形成，并且对于槽数，最小公倍数为N个，并且对于槽数，最小公倍数为N个，磁极数和最小公倍数为M 和分割数，则N等于M.
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公开(公告)号：US20090302719A1
公开(公告)日：2009-12-10
申请号：US12299947
申请日：2007-04-25
IPC分类号： H02K11/00
摘要： A Hall element is placed under an outside rotor at an identical angular position to a centerline between two adjacent outer teeth. This structure allows narrowing a dead band of the Hall element when it senses a leakage magnetic flux.
摘要翻译： 将霍尔元件放置在外转子下方与相邻外齿之间的中心线处于相同的角位置。 这种结构允许当其感测泄漏磁通时，使霍尔元件的死区变窄。
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