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51. 发明授权

US08350439B2 Brushless DC motor of outer rotor type and electronic device using the same 有权
标题翻译：外转子式无刷直流电动机及使用其的电子装置
公开(公告)号：US08350439B2
公开(公告)日：2013-01-08
申请号：US12681962
申请日：2008-10-08
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
IPC分类号： H02K1/14 , H02K1/12 , H02K1/16
CPC分类号： H02K1/08 , H02K1/146 , H02K1/187 , H02K21/222
摘要： This motor includes a stator whereupon a plurality of magnetic poles are arranged at first prescribed intervals on the outer circumference section, and a rotor which is rotatively arranged on the outer circumference of the stator by having a prescribed space in between and has permanent magnets magnetized to different polarities at second prescribed intervals. The magnetic pole of the stator forms an extending section which extends from a magnetic pole base section in a direction parallel to the permanent magnet, and the extending length of the extending section in the direction parallel to the permanent magnet is same as that of the magnetic pole base section in the direction parallel to the permanent magnet or shorter.
摘要翻译：该电动机包括定子，其中在外周部分上以规定的间隔布置多个磁极，并且转子通过在其间具有规定的间隔旋转地设置在定子的外周上，并且具有被磁化为在第二个规定的间隔处具有不同的极性。定子的磁极形成从磁极基部沿与永磁体平行的方向延伸的延伸部分，并且延伸部分在与永久磁铁平行的方向上的延伸长度与磁铁的相同极基部分在与永磁体平行的方向上较短。

52. 发明授权

US08159102B2 Motor and electronic apparatus using the same 失效
标题翻译：电机和电子设备使用相同
公开(公告)号：US08159102B2
公开(公告)日：2012-04-17
申请号：US12813166
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： H02K7/00
CPC分类号： H02K11/225 , H02K1/146
摘要： A rotor 14 is rotatably disposed around a stator 13 that is provided with a plurality of magnetic poles 13a. The inner circumferential face of a rotor frame 14b 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 a 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 a substrate 11 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. When a distance between an end of the rotor frame on the substrate side and the substrate is taken as A, a distance between an end of the first extended portion on the substrate side and the substrate is taken as B, and a distance between the end of the first extended portion on the substrate side and the magnet is taken as G, B≦A≦B+G is satisfied. 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：转子14围绕设置有多个磁极13a的定子13可旋转地设置。转子的转子架14b的内周面设置有磁体15，该磁体被磁化成与定子相反的方向具有相反的极性，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11侧的第一延伸部13c和从磁极基部延伸到相反侧的第二延伸部13b 基板侧。与转子相对的基板的表面设置有FG图案19.当基板侧的转子框架的端部与基板之间的距离取为A时，第一延伸部分的端部之间的距离将基板侧和基板取为B，将基板侧的第一延伸部的端部与磁铁的距离设为G，B＆nlE;满足A＆lt; NlE; B + G。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。

53. 发明授权

US08159097B2 Motor and electronic apparatus using the same 失效
标题翻译：电机和电子设备使用相同
公开(公告)号：US08159097B2
公开(公告)日：2012-04-17
申请号：US12813258
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： H02K7/00
CPC分类号： H02K29/03 , H02K1/146 , H02K1/2786
摘要： A rotor 14 is rotatably disposed around a stator 13 that is provided with a plurality of magnetic poles 13a. The inner circumferential face of the rotor is provided with a magnet 15 on whose face opposing the stator main magnetization is performed, and on whose face opposing the substrate FG magnetization is performed. The outer circumferential ends of the magnetic poles of the stator are provided with extended portions 13b and 13c that vertically extend from the magnetic pole base 13d. A face of the substrate opposing the rotor is provided with a FG pattern 19 opposing the magnet 15. The FG pattern is disposed on an outer side in a radial direction of the outer circumferential face of the stator. When an angle formed by a straight line connecting a central position in the radial direction of the magnet and a central position in the radial direction of the FG pattern with respect to a central axis of a driving shaft is taken as θ, and an angle formed by a direction of the FG magnetization with respect to the central axis of the driving shaft is taken as A, 0 degree
摘要翻译：转子14围绕设置有多个磁极13a的定子13可旋转地设置。转子的内周面设置有磁铁15，在磁体15的与定子主磁化相反的方向上进行磁体15，并且在其表面与基板FG的磁化相反的方向被执行。定子的磁极的外周端设置有从磁极基座13d垂直延伸的延伸部分13b和13c。与转子相对的基板的表面设置有与磁体15相对的FG图案19.GV图案设置在定子的外周面的径向外侧。当将连接磁体径向中心位置的直线和FG图案径向方向上的中心位置相对于驱动轴的中心轴线形成的角度取为角度时，由相对于驱动轴的中心轴线的FG磁化方向形成的A为0度

54. 发明授权

US07683518B2 Motor 有权
标题翻译：发动机
公开(公告)号：US07683518B2
公开(公告)日：2010-03-23
申请号：US11679918
申请日：2007-02-28
申请人： Yuichi Yoshikawa , Kiyomi Kawamura , Hiroshi Murakami , Hideharu Hiwaki , Yasushi Kamada , Hiroki Sato
发明人： Yuichi Yoshikawa , Kiyomi Kawamura , Hiroshi Murakami , Hideharu Hiwaki , Yasushi Kamada , Hiroki Sato
IPC分类号： H02K1/24 , H02K1/22 , H02K1/27
CPC分类号： H02K1/276 , H02K29/03
摘要： A motor includes a stator formed of a stator iron-core having salient pole iron-cores and windings, and a rotor having a rotor iron-core in which permanent magnets are buried. A magnetic pole centerline connecting a rotary center of the rotor to a magnetic pole center crosses an external shape of the rotor iron-core at end point X, and the magnetic-pole boundary line connecting the rotary center to a magnetic pole boundary point crosses the external shape of the rotor iron-core at end point Z. A straight line angled at a given angle θa from the magnetic pole centerline has end point A. Then a sectional view of the rotor iron-core shows an arc drawn between the end points X and A, and the arc's center is the rotary center. The end points A and Z are connected by one or more than one straight lines in series.
摘要翻译：电动机包括由具有凸极铁芯和绕组的定子铁芯形成的定子和具有永磁体的转子铁心的转子。将转子的旋转中心与磁极中心连接的磁极中心线在端点X与转子铁芯的外形交叉，将旋转中心与磁极边界点连接的磁极边界线穿过在端点Z处的转子铁芯的外部形状。以给定角度和角度成角度的直线;来自磁极中心线的a具有端点A.然后转子铁芯的截面图示出了在终点X和A，弧的中心是旋转中心。端点A和Z通过串联的一条或多条直线连接。

55. 发明授权

US08680737B2 Motor and electronic apparatus using the same 有权
标题翻译：电机和电子设备使用相同
公开(公告)号：US08680737B2
公开(公告)日：2014-03-25
申请号：US12827405
申请日：2010-06-30
申请人： Hiroaki Kawasaki , Yuichi Yoshikawa , Atsuyoshi Koshiba , Koji Kadowaki , Yasuo Kunishige , Yasuhiro Inoue
发明人： Hiroaki Kawasaki , Yuichi Yoshikawa , Atsuyoshi Koshiba , Koji Kadowaki , Yasuo Kunishige , Yasuhiro Inoue
IPC分类号： H02K1/14
CPC分类号： H02K1/148 , H02K1/187
摘要： A stator 3 is provided with a plurality of magnetic poles 3a on the outer circumference thereof, and is configured from a plurality of layers of plate-shaped members. A rotor 4 is rotatably disposed around the stator. The inner circumferential face of the rotor is provided with a magnet 5. The outer circumferential ends of the magnetic poles of the stator are provided with an extended portion that is bent such that at least one plate-shaped member, including an outermost layer, of the plurality of plate-shaped members is substantially parallel to the magnet. When the inner diameter of a bent portion of a plate-shaped member that is the closest to the magnet of the at least one plate-shaped member constituting the extended portion is taken as R1i, and the thickness of the closest plate-shaped member is taken as T1, R1i
摘要翻译：定子3在其外周设置有多个磁极3a，并且由多个板状构件构成。转子4围绕定子可旋转地设置。转子的内周面设置有磁体5.定子的磁极的外周端设置有弯曲的延伸部分，使得至少一个包括最外层的板状部件多个板状构件基本上平行于磁铁。当构成延伸部的至少一个板状构件的最靠近磁体的板状构件的弯曲部的内径为R1i时，最近的板状构件的厚度为取T1，R1i

56. 发明授权

US08405276B2 Motor and electronic apparatus using the same 有权
标题翻译：电机和电子设备使用相同
公开(公告)号：US08405276B2
公开(公告)日：2013-03-26
申请号：US13005803
申请日：2011-01-13
申请人： Hiroaki Kawasaki , Yuichi Yoshikawa , Atsuyoshi Koshiba , Yasuhiro Inoue , Koji Kadowaki , Yasuo Kunishige
发明人： Hiroaki Kawasaki , Yuichi Yoshikawa , Atsuyoshi Koshiba , Yasuhiro Inoue , Koji Kadowaki , Yasuo Kunishige
IPC分类号： H02K1/06
CPC分类号： H02K21/22 , H02K1/148 , H02K2213/03
摘要： The motor comprises a stator, a rotor, and magnets. The stator has a plurality of magnetic poles circumferentially arranged at first spaced intervals. The rotor is rotatably arranged in a position opposing to the stator. The magnets are arranged at second spaced intervals circumferentially on a surface of the rotor. The stator is formed by laminating plate materials, and a plurality of laminated plate materials at least including outermost layers of a laminated body thereof are bent in a direction substantially parallel to the magnet in order to form extended portions. And, when a magnet opposed area of pole tip portion being closest to a magnet including the extended portion is S, and a sectional area of magnetic pole is A, then area ratio (S/A) fulfills the relation of 4.8>(S/A).
摘要翻译：电动机包括定子，转子和磁体。定子具有以第一间隔间隔周向布置的多个磁极。转子可旋转地布置在与定子相对的位置。这些磁体在转子的表面周向上以第二间隔的间隔布置。定子通过层压板材形成，并且至少包括其层压体的最外层的多个层压板材料在大致平行于磁体的方向上弯曲，以形成延伸部分。另外，当最靠近包括延伸部分的磁体的磁极相对区域为S时，磁极的截面积为A，则面积比（S / A）满足4.8>（S / 一个）。

57. 发明授权

US08368278B2 Motor and electronic device comprising the same 有权
标题翻译：电动机和包括该电机的电子装置
公开(公告)号：US08368278B2
公开(公告)日：2013-02-05
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： H02K1/02 , H02K1/06 , H02K1/16
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。

58. 发明申请

US20110012465A1 INTERIOR PERMANENT MAGNET ROTOR, ELECTRIC MOTOR USING THE SAME AND ELECTRIC DEVICE 有权
标题翻译：内置永磁电机，使用该电机的电动机和电气设备
公开(公告)号：US20110012465A1
公开(公告)日：2011-01-20
申请号：US12934187
申请日：2009-03-06
申请人： Kiyomi Kawamura , Takashi Ogawa , Hiroshi Murakami , Yuichi Yoshikawa , Yasuyuki Yokouchi
发明人： Kiyomi Kawamura , Takashi Ogawa , Hiroshi Murakami , Yuichi Yoshikawa , Yasuyuki Yokouchi
IPC分类号： H02K1/27
CPC分类号： H02K1/276 , H02K29/03 , H02K2213/03
摘要： A rotor (21) is an interior permanent magnet rotor formed of a rotor core (24) in which a plurality of permanent magnets (25) are embedded at predetermined intervals. First protruding portions (26) and second protruding portions (27) are formed on an outer peripheral face of the rotor, the first protruding portions (26) each opposing the vicinity of a central portion of each of the permanent magnets and having a substantially arc-shaped cross section protruding outward and the second protruding portions (27) each opposing the vicinity of an end portion of each of the permanent magnets and protruding outward. One first protruding portion and two second protruding portions correspond to one permanent magnet. The formation of the first and second protruding portions as described above on the outer peripheral face of the rotor makes it possible to sufficiently reduce the torque ripple and the noise caused by the distortion of air-gap magnetic flux distribution.
摘要翻译：转子（21）是由转子铁芯（24）形成的内部永磁转子，其中以预定间隔嵌入多个永磁体（25）。第一突出部分（26）和第二突出部分（27）形成在转子的外周面上，第一突出部分（26）与每个永磁体的中心部分附近相对，形状的横截面向外突出，第二突出部分（27）分别与每个永磁体的端部附近相对并向外突出。一个第一突出部分和两个第二突出部分对应于一个永磁体。在转子的外周面上形成如上所述的第一和第二突出部，可以充分地减小由气隙磁通分布的变形引起的转矩脉动和噪声。

59. 发明申请

US20100327691A1 MOTOR AND ELECTRONIC APPARATUS USING THE SAME 失效
标题翻译：使用它的电动机和电子设备
公开(公告)号：US20100327691A1
公开(公告)日：2010-12-30
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： H02K1/27
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。

60. 发明申请

US20090091204A1 MOTOR HAVING TWIN-ROTOR 审中-公开
标题翻译：具有双转子的电机
公开(公告)号：US20090091204A1
公开(公告)日：2009-04-09
申请号：US11996616
申请日：2006-10-10
申请人： Atsuyoshi Koshiba , Hideharu Hiwaki , Hirosi Murakami , Yuichi Yoshikawa
发明人： Atsuyoshi Koshiba , Hideharu Hiwaki , Hirosi Murakami , Yuichi Yoshikawa
IPC分类号： H02K16/02
CPC分类号： H02K16/02 , H02K21/16 , H02K21/22 , H02K29/03
摘要： A motor includes a stator, a first rotor and a second rotor. The stator has a plurality of outer teeth projecting outward from an annular stator yoke, a plurality of inner teeth projecting inward from the stator yoke, and windings wound on both of the teeth. Instead of providing both of the teeth with the windings, toroidal windings can be wound on the stator yoke at each section sandwiched between the slots, which stator yoke is disposed between each one of the inner slots and corresponding each one of the outer slots. This motor is structured such that the phases of cogging torque and torque ripple existing between the stator and the second rotor can be reversed with respect to the phases of cogging torque and torque ripple existing between the stator and the first rotor.
摘要翻译：电动机包括定子，第一转子和第二转子。定子具有从环形定子磁轭向外突出的多个外齿，从定子磁轭向内突出的多个内齿和缠绕在两个齿上的绕组。除了将两个齿都提供给绕组之外，环形绕组可以在夹在狭槽之间的每个部分处缠绕在定子磁轭上，定子磁轭设置在每个内槽之间和对应的每个外槽之间。该电动机的结构使得存在于定子和第二转子之间的齿槽转矩和转矩脉动的相位可以相对于存在于定子和第一转子之间的齿槽转矩和转矩波动的相位而反转。

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