公开(公告)号：US20100295401A1

公开(公告)日：2010-11-25

申请号：US12160667

申请日：2007-01-09

申请人： Yukinori Nakagawa ,  Yuichi Yoshikawa ,  Hu Li ,  Masahiko Morisaki ,  Hiroshi Murakami

发明人： Yukinori Nakagawa ,  Yuichi Yoshikawa ,  Hu Li ,  Masahiko Morisaki ,  Hiroshi Murakami

IPC分类号： H02K16/02 ,  H02K21/14 ,  H02K21/22 ,  H02K1/28

CPC分类号： H02K16/02 ,  H02K21/14 ,  H02K21/22

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。

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。

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.

公开(公告)号：US07622841B2

公开(公告)日：2009-11-24

申请号：US11756206

申请日：2007-05-31

申请人： Yuichi Yoshikawa ,  Hiroki Sato ,  Yasushi Kamada ,  Hiroshi Murakami

发明人： Yuichi Yoshikawa ,  Hiroki Sato ,  Yasushi Kamada ,  Hiroshi Murakami

IPC分类号： H02K21/12

CPC分类号： H02K1/276

摘要： A motor includes a stator and a rotor. The stator is configured by winding a coil around a stator core which includes a salient-pole core. The rotor has a rotor core made by laminating thin and highly permeable iron sheets. The rotor core has multiple permanent magnet embedding holes, and a permanent magnet is embedded in each of the permanent magnet embedding holes. A cross-section of the permanent magnet is a rectangle with a long side in a rotating direction and a short side perpendicular to the long side. A cross section of the permanent magnet embedding hole is formed by an embedding hole's long side corresponding to the long side and an embedding hole's short side corresponding to the short side. The embedding hole's short side has a first protrusion and a flat portion. The embedding hole's long side to an inner diameter side has a second protrusion on its both ends.

摘要翻译： 电动机包括定子和转子。 定子通过将线圈缠绕在包括凸极芯的定子芯上来构造。 转子具有通过层叠薄且高度可渗透的铁板制成的转子芯。 转子芯具有多个永久磁铁嵌入孔，并且每个永久磁铁嵌入孔中嵌入永久磁铁。 永久磁铁的横截面是沿着旋转方向具有长边和垂直于长边的短边的矩形。 永久磁铁埋置孔的横截面通过嵌入孔的长边对应的长边和与短边对应的嵌入孔的短边形成。 嵌入孔的短边具有第一突出部和平坦部。 嵌入孔的长边侧的内径侧在其两端具有第二突出部。

公开(公告)号：US20070222319A1

公开(公告)日：2007-09-27

申请号：US11756206

申请日：2007-05-31

申请人： Yuichi Yoshikawa ,  Hiroki Sato ,  Yasushi Kamada ,  Hiroshi Murakami

发明人： Yuichi Yoshikawa ,  Hiroki Sato ,  Yasushi Kamada ,  Hiroshi Murakami

IPC分类号： H02K21/12

CPC分类号： H02K1/276

摘要： A motor includes a stator and a rotor. The stator is configured by winding a coil around a stator core which includes a salient-pole core. The rotor has a rotor core made by laminating thin and highly permeable iron sheets. The rotor core has multiple permanent magnet embedding holes, and a permanent magnet is embedded in each of the permanent magnet embedding holes. A cross-section of the permanent magnet is a rectangle with a long side in a rotating direction and a short side perpendicular to the long side. A cross section of the permanent magnet embedding hole is formed by an embedding hole's long side corresponding to the long side and an embedding hole's short side corresponding to the short side. The embedding hole's short side has a first protrusion and a flat portion. The embedding hole's long side to an inner diameter side has a second protrusion on its both ends.

摘要翻译： 电动机包括定子和转子。 定子通过将线圈缠绕在包括凸极芯的定子芯上来构造。 转子具有通过层叠薄且高度可渗透的铁板制成的转子芯。 转子芯具有多个永久磁铁嵌入孔，并且每个永久磁铁嵌入孔中嵌入永久磁铁。 永久磁铁的横截面是沿着旋转方向具有长边和垂直于长边的短边的矩形。 永久磁铁埋置孔的横截面通过嵌入孔的长边对应的长边和与短边对应的嵌入孔的短边形成。 嵌入孔的短边具有第一突出部和平坦部。 嵌入孔的长边侧的内径侧在其两端具有第二突出部。

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：US08664962B2

公开(公告)日：2014-03-04

申请号：US13643947

申请日：2012-01-10

申请人： Takashi Ogawa ,  Yuichi Yoshikawa ,  Yasuji Echizen ,  Masahiko Kobayashi ,  Masaaki Nishiyama

发明人： Takashi Ogawa ,  Yuichi Yoshikawa ,  Yasuji Echizen ,  Masahiko Kobayashi ,  Masaaki Nishiyama

IPC分类号： G01R31/06

CPC分类号： H02K3/28 ,  G01D5/20 ,  H02K3/18 ,  H02K24/00

摘要： The N1(s) turns of a first output winding is divided by a split ratio α into N1a(s) turns of a lower-layer first output winding and N1b(s) of an upper-layer first output winding. The lower-layer first output winding is continuously wound around all slots as the undermost layer. A second output winding is continuously wound around all slots over the lower-layer first output winding. An upper-layer first output winding is continuously wound around all slots over the second output winding. The split ratio α is adjusted only in the slots where the detection accuracy decreases. This equalize the contribution of the first output windings and the second output winding to the flux linkage, thereby achieving high angle detection accuracy.

摘要翻译： 第一输出绕组的N1（s）匝被分割比α除以下层第一输出绕组的N1a（s）匝和上层第一输出绕组的N1b（s）。 下层第一输出绕组作为最下层连续缠绕在所有槽上。 第二输出绕组连续缠绕在下层第一输出绕组上的所有槽上。 上层第一输出绕组连续卷绕在第二输出绕组上的所有槽上。 仅在检测精度降低的插槽中调整分割比α。 这使得第一输出绕组和第二输出绕组对磁通的贡献相等，从而实现高角度检测精度。

公开(公告)号：US20130342068A1

公开(公告)日：2013-12-26

申请号：US13983255

申请日：2012-02-01

申请人： Takashi Ogawa ,  Yuichi Yoshikawa ,  Ikuo Ozaki ,  Toshiyuki Tamamura ,  Hirokazu Yamauchi

发明人： Takashi Ogawa ,  Yuichi Yoshikawa ,  Ikuo Ozaki ,  Toshiyuki Tamamura ,  Hirokazu Yamauchi

IPC分类号： H02K1/12

CPC分类号： H02K1/12 ,  H02K1/185

摘要： A plurality of protruding portions each having a predetermined width in a circumferential direction are respectively provided at a predetermined interval along an outer periphery of a stator, and through-holes are formed at both ends in the circumferential direction of the protruding portions. A total length of the widths, which the protruding portions respectively have, in the circumferential direction is set equal to or less than 25% of an outer circumference of the stator. With this structure and by virtue of the through-holes, a compressive stress built up in an inner periphery of the stator due to pressing forces imposed on center areas of the protruding portions can be distribute toward the outer periphery of the stator.

摘要翻译： 分别沿着定子的外周以规定的间隔设置有沿圆周方向具有预定宽度的多个突出部分，并且在突出部分的圆周方向上的两端形成通孔。 突出部分在圆周方向上分别具有的宽度的总长度被设定为等于或小于定子的外圆周的25％。 利用这种结构，并且由于通孔，由于施加在突出部分的中心区域上的压力，在定子的内周积累的压缩应力可以朝向定子的外周分布。

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：US20130088127A1

公开(公告)日：2013-04-11

申请号：US13702921

申请日：2011-04-12

申请人： Takashi Ogawa ,  Yuichi Yoshikawa ,  Yasuji Echizen ,  Masahiko Kobayashi ,  Masaaki Nishiyama

发明人： Takashi Ogawa ,  Yuichi Yoshikawa ,  Yasuji Echizen ,  Masahiko Kobayashi ,  Masaaki Nishiyama

IPC分类号： H02K15/085 ,  H02K11/00

CPC分类号： H02K15/085 ,  H02K3/28 ,  H02K24/00 ,  Y10T29/49071

摘要： The N1(s) turns of an output winding is divided by a split ratio α into N1a(s) turns of an output winding (1a) and N1b(s) turns of an output winding (1b). The output winding (1a) is continuously wound around all slots as the undermost layer. Output winding 2, which is different in phase by 90 degrees from the output winding (1a), is continuously wound around all the slots over the output winding (1a). An output winding (1b) is continuously wound around all the slots over output winding 2. This equalizes the contribution of the output winding and output winding 2 to the flux linkage, thereby achieving high angle detection accuracy.

摘要翻译： 输出绕组的N1（s）匝由分流比α除以输出绕组（1a）的N1a（s）匝和输出绕组（1b）的N1b（s）匝。 输出绕组（1a）作为最下层连续缠绕在所有槽上。 与输出绕组（1a）相位相差90度的输出绕组2连续缠绕在输出绕组（1a）上的所有槽上。 输出绕组（1b）连续缠绕在输出绕组2上的所有槽上。这使得输出绕组和输出绕组2对磁链的贡献相等，从而实现高角度检测精度。