公开(公告)号：US09369014B2

公开(公告)日：2016-06-14

申请号：US13983904

申请日：2011-12-06

申请人： Hiroaki Kawasaki ,  Yuichi Yoshikawa

发明人： Hiroaki Kawasaki ,  Yuichi Yoshikawa

IPC分类号： H02K21/12 ,  H02K1/27

CPC分类号： H02K1/2706 ,  H02K1/276

摘要： Provided are a rotor of a motor capable of attaining a high-speed rotation by appropriately dispersing a stress exerted on a flux barrier portion while reducing a leakage of magnetic flux, and a fan driving motor including the rotor. A second inner wall surface is greater than a first inner wall surface in length in a cross-section perpendicular to a rotational axis (C). A side wall surface has a flux barrier wall surface extending from each of both ends of the second inner wall surface in the cross-section perpendicular to the rotational axis (C), the flux barrier wall surface extending outward relative to the second inner wall surface in an extending direction of the second inner wall surface and more distant from an outer edge of a rotor as it goes from the second inner wall surface toward the first inner wall surface in the cross-section perpendicular to the rotational axis (C). The permanent magnets are placed such that radially outward polarities of two or more permanent magnets adjacent in the circumferential direction of the rotor are the same in a state in which the permanent magnets are inserted into the slots, respectively.

摘要翻译： 提供一种能够通过适当地分散施加在磁通屏障部分上的应力来实现高速旋转的电动机的转子，同时减少磁通量的泄漏，以及包括转子的风扇驱动电动机。 在垂直于旋转轴线（C）的横截面中，第二内壁表面的长度大于第一内壁表面。 侧壁表面具有从垂直于旋转轴线（C）的横截面中从第二内壁表面的两端各自延伸的通量阻挡壁表面，阻挡壁表面相对于第二内壁表面向外延伸 在第二内壁表面的延伸方向上，在与第二内壁表面垂直于旋转轴线（C）的横截面中从第二内壁表面朝向第一内壁表面更远离转子的外边缘。 永久磁铁被放置成使得在永磁体分别插入槽中的状态下，在转子的圆周方向上相邻的两个或多个永磁体的径向外侧极性相同。

公开(公告)号：US20130313934A1

公开(公告)日：2013-11-28

申请号：US13983904

申请日：2011-12-06

申请人： Hiroaki Kawasaki ,  Yuichi Yoshikawa

发明人： Hiroaki Kawasaki ,  Yuichi Yoshikawa

IPC分类号： H02K1/27

CPC分类号： H02K1/2706 ,  H02K1/276

摘要： Provided are a rotor of a motor capable of attaining a high-speed rotation by appropriately dispersing a stress exerted on a flux barrier portion while reducing a leakage of magnetic flux, and a fan driving motor including the rotor. A second inner wall surface is greater than a first inner wall surface in length in a cross-section perpendicular to a rotational axis (C). A side wall surface has a flux barrier wall surface extending from each of both ends of the second inner wall surface in the cross-section perpendicular to the rotational axis (C), the flux barrier wall surface extending outward relative to the second inner wall surface in an extending direction of the second inner wall surface and more distant from an outer edge of a rotor as it goes from the second inner wall surface toward the first inner wall surface in the cross-section perpendicular to the rotational axis (C). The permanent magnets are placed such that radially outward polarities of two or more permanent magnets adjacent in the circumferential direction of the rotor are the same in a state in which the permanent magnets are inserted into the slots, respectively.

摘要翻译： 提供一种能够通过适当地分散施加在磁通屏障部分上的应力来实现高速旋转的电动机的转子，同时减少磁通量的泄漏，以及包括转子的风扇驱动电动机。 在垂直于旋转轴线（C）的横截面中，第二内壁表面的长度大于第一内壁表面。 侧壁表面具有从垂直于旋转轴线（C）的横截面中从第二内壁表面的两端各自延伸的通量阻挡壁表面，阻挡壁表面相对于第二内壁表面向外延伸 在第二内壁表面的延伸方向上，在与第二内壁表面垂直于旋转轴线（C）的横截面中从第二内壁表面朝向第一内壁表面更远离转子的外边缘。 永久磁铁被放置成使得在永磁体分别插入槽中的状态下，在转子的圆周方向上相邻的两个或多个永磁体的径向外侧极性相同。

公开(公告)号：US20110175497A1

公开(公告)日：2011-07-21

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： H02K1/27 ,  H02K11/00 ,  H02K21/12 ,  H02K1/12

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）。

公开(公告)号：US20130313933A1

公开(公告)日：2013-11-28

申请号：US13983895

申请日：2011-12-06

申请人： Hiroaki Kawasaki ,  Yuichi Yoshikawa

发明人： Hiroaki Kawasaki ,  Yuichi Yoshikawa

IPC分类号： H02K1/27

CPC分类号： H02K1/2706 ,  H02K1/276 ,  H02K21/16

摘要： Provided are a rotor of a motor capable of attaining a high-speed rotation by appropriately dispersing a stress exerted on a flux barrier portion while reducing a leakage of magnetic flux, and a fan driving motor including the rotor. A second inner wall surface is greater than a first inner wall surface in length in a cross-section perpendicular to a rotational axis (C). A side wall surface has a flux barrier wall surface extending from each of both ends of the second inner wall surface in the cross-section perpendicular to the rotational axis (C), the flux barrier wall surface extending outward relative to the second inner wall surface in an extending direction of the second inner wall surface and more distant from an outer edge of a rotor as it goes from the second inner wall surface toward the first inner wall surface in the cross-section perpendicular to the rotational axis (C).

摘要翻译： 提供一种能够通过适当地分散施加在磁通屏障部分上的应力来实现高速旋转的电动机的转子，同时减少磁通量的泄漏，以及包括转子的风扇驱动电动机。 在垂直于旋转轴线（C）的横截面中，第二内壁表面的长度大于第一内壁表面。 侧壁表面具有从垂直于旋转轴线（C）的横截面中从第二内壁表面的两端各自延伸的通量阻挡壁表面，阻挡壁表面相对于第二内壁表面向外延伸 在第二内壁表面的延伸方向上，在与第二内壁表面垂直于旋转轴线（C）的横截面中从第二内壁表面朝向第一内壁表面更远离转子的外边缘。

公开(公告)号：US09293954B2

公开(公告)日：2016-03-22

申请号：US13983895

申请日：2011-12-06

申请人： Hiroaki Kawasaki ,  Yuichi Yoshikawa

发明人： Hiroaki Kawasaki ,  Yuichi Yoshikawa

IPC分类号： H02K21/12 ,  H02K1/27 ,  H02K21/16

CPC分类号： H02K1/2706 ,  H02K1/276 ,  H02K21/16

摘要： Provided are a rotor of a motor capable of attaining a high-speed rotation by appropriately dispersing a stress exerted on a flux barrier portion while reducing a leakage of magnetic flux, and a fan driving motor including the rotor. A second inner wall surface is greater than a first inner wall surface in length in a cross-section perpendicular to a rotational axis (C). A side wall surface has a flux barrier wall surface extending from each of both ends of the second inner wall surface in the cross-section perpendicular to the rotational axis (C), the flux barrier wall surface extending outward relative to the second inner wall surface in an extending direction of the second inner wall surface and more distant from an outer edge of a rotor as it goes from the second inner wall surface toward the first inner wall surface in the cross-section perpendicular to the rotational axis (C).

摘要翻译： 提供一种能够通过适当地分散施加在磁通屏障部分上的应力来实现高速旋转的电动机的转子，同时减少磁通量的泄漏，以及包括转子的风扇驱动电动机。 在垂直于旋转轴线（C）的横截面中，第二内壁表面的长度大于第一内壁表面。 侧壁表面具有从垂直于旋转轴线（C）的横截面中从第二内壁表面的两端各自延伸的通量阻挡壁表面，阻挡壁表面相对于第二内壁表面向外延伸 在第二内壁表面的延伸方向上，在与第二内壁表面垂直于旋转轴线（C）的横截面中从第二内壁表面朝向第一内壁表面更远离转子的外边缘。

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。

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

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

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）。

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。