公开(公告)号：US07501734B2

公开(公告)日：2009-03-10

申请号：US11356174

申请日：2006-02-17

Applicant: Akeshi Takahashi ,  Tomio Yoshikawa ,  Baiying Huang ,  Shigekazu Nozawa ,  Susumu Nakayaka ,  Haruo Koharagi ,  Satoshi Kikuchi

Inventor： Akeshi Takahashi ,  Tomio Yoshikawa ,  Baiying Huang ,  Shigekazu Nozawa ,  Susumu Nakayaka ,  Haruo Koharagi ,  Satoshi Kikuchi

IPC: H02K3/04

CPC classification number: H02K1/16 ,  H02K7/14 ,  H02K21/46 ,  H02K2201/06 ,  H02K2201/09

Abstract: The invention provides a motor comprising a stator and a rotor. The stator core includes a laminated stator core made of laminated stator core plates in which straight cut surfaces are formed on a circular outer peripheral surface of the laminated stator core plates. The straight cut surfaces of the laminated stator core plates are circumferentially displaced every predetermined laminated stator core plates so that the straight cut surfaces are uniformly distributed in an axial and a circumferential direction of the laminated stator core. Therefore, a flow passage for lubricating oil is ensured, while local magnetic saturation of the stator core is dissolved and a cogging torque and an induced voltage waveform distortion rate are improved.

Abstract translation: 本发明提供一种包括定子和转子的马达。 定子铁芯包括由叠层定子铁芯板制成的叠层定子铁芯，其中在层叠的定子铁芯板的圆形外圆周表面上形成有直线切割面。 叠层定子铁心板的直切面每隔预定的叠层定子铁心板周向位移，使得直切面在叠层定子铁心的轴向和圆周方向上均匀分布。 因此，确保了定子铁芯的局部磁饱和，并且齿槽转矩和感应电压波形失真率提高的润滑油流路。

公开(公告)号：US20090026872A1

公开(公告)日：2009-01-29

申请号：US12161931

申请日：2007-01-19

Applicant: Kenji Tomohara ,  Seiji Miyazaki ,  Mitsuhiro Koga ,  Makoto Matsumoto ,  Hiroshi Koga ,  Shinichi Sakamoto

Inventor： Kenji Tomohara ,  Seiji Miyazaki ,  Mitsuhiro Koga ,  Makoto Matsumoto ,  Hiroshi Koga ,  Shinichi Sakamoto

IPC: H02K1/12 ,  H02K15/02

CPC classification number: H02K1/148 ,  H02K15/022 ,  H02K2201/06 ,  Y10T29/49009

Abstract: Although in a conventional permanent magnet type synchronous motor, cogging torque is reduced by displacing permanent magnets of a rotor in a circumferential direction or displacing a stator core in a circumferential direction, since the skew so produced reduces the output of the motor and moreover the winding work of windings cannot be automated to make the resulting motor highly expensive, split cores are provided which solves those problems and enables the winding work of windings to be automated so as to obtain an inexpensive and high-output motor.There are provided a plurality of split cores (100) made up of laminated iron cores each having formed thereon a tooth (6), and a yoke (5) and a pole piece (9) which are made to connect to the tooth (6) at both ends thereof, and arranged and connected together into an annular shape to make up a stator, characterized in that both ends of the yokes (5) and both ends of the pole pieces (9) are displaced in one circumferential direction by laminated iron core from a top laminated layer to a bottom laminated layer of the iron cores of the split cores.

Abstract translation: 虽然在传统的永久磁铁式同步电动机中，通过沿圆周方向移动转子的永磁体或使定子铁芯在圆周方向上移位来减小齿槽转矩，但由于产生的倾斜减小了电动机的输出，而且绕组 绕组的工作不能自动化，使得所得到的电动机非常昂贵，提供了解决这些问题的分裂芯，并且使绕组的绕组工作能够自动化，从而获得廉价且高输出的电动机。 设置有多个由分别形成有齿（6）的层叠铁芯构成的分割芯（100）和与齿（6）连接的轭（5）和极片（9） ），并且布置并连接在一起形成环形以构成定子，其特征在于，磁轭（5）的两端和磁极片（9）的两端通过层叠在一个圆周方向上位移 铁芯从顶层叠层到分裂芯的铁芯的底层叠层。

公开(公告)号：US07466057B2

公开(公告)日：2008-12-16

申请号：US10568959

申请日：2004-09-16

Applicant: Nobuyuki Imai ,  Shin Aoki ,  Hiroyuki Kikuchi ,  Masahiro Seki ,  Tadanobu Takahashi ,  Shigeru Tajima

Inventor： Nobuyuki Imai ,  Shin Aoki ,  Hiroyuki Kikuchi ,  Masahiro Seki ,  Tadanobu Takahashi ,  Shigeru Tajima

IPC: H02K1/14 ,  H02K37/14 ,  H02K3/00 ,  H02K9/00

CPC classification number: H02K1/145 ,  H02K16/04 ,  H02K2201/06

Abstract: 2m sets (m being a natural number of 2 or more; and m=2 in embodiments) of teeth (31b to 34b) and 2m−1 slots (41, 42, 43) are disposed alternately in an axial direction; those of windings (36, 37, 38) accommodated in the slots (41, 42, 43), which are each accommodated in the slots (41, 42, 43) spaced apart by m from each other, are connected in line, so that exciting directions are opposite; and phases of magnetic fluxes passed through the teeth (31b to 34b) are displaced by 360°/2m from one another. Therefore, a thin and high-powered claw pole motor can be produced by disusing a portion of the winding which does not contribute to a torque (i.e., a crossover portion) and commonly using a magnetic path in each phase through return passes (31a to 34a). Moreover, a magnetic circuit of a wave winding motor is formed and hence, the output torque can be increased, as compared with a salient pole concentrated winding motor.

Abstract translation: 齿（31b〜34b）和2m-1槽（41,42,43）的2m组（实施方式中的m为2以上，m = 2），轴向交替配置; 容纳在狭缝（41,42,43）中的各自容纳在彼此间隔开的间隙（41,42,43）的槽（41,42,33）中的绕组（36,37,38）彼此连接，因此 令人激动的方向相反; 通过齿（31b〜34b）的磁通相位彼此相差360°/ 2m。 因此，可以通过使绕组的一部分不产生扭矩（即，交叉部分）并且通常在每个相中通过使用磁路通过返回通路（31a到...）来产生薄而高功率的爪极电动机 34a）。 此外，与凸极集中绕组电动机相比，形成了波纹绕组电动机的磁路，因此能够提高输出转矩。

公开(公告)号：US20080290754A1

公开(公告)日：2008-11-27

申请号：US12081925

申请日：2008-04-23

Applicant: Shinji Makita ,  Masayuki Nashiki ,  Yoshinobu Kamada ,  Eisuke Takahashi

Inventor： Shinji Makita ,  Masayuki Nashiki ,  Yoshinobu Kamada ,  Eisuke Takahashi

IPC: H02K1/12

CPC classification number: H02K29/03 ,  H02K21/16 ,  H02K2201/06

Abstract: The motor includes a rotor including N-pole magnets and S-pole magnets located alternately along a circumferential direction of said AC motor, a stator core including a plurality of partial cores arranged coaxially along an axial direction of said AC motor each of said partial cores including a plurality of stator poles located along said circumferential direction so as to be on the same circumference, and a plurality of loop-like windings each of which extends in said circumferential direction while passing through, in said axial direction, interpole spaces between each two adjacent stator poles in said circumferential direction. The a phase angle difference between each adjacent two of said stator poles in said circumferential direction of the same one of said partial cores is set at a value smaller than 360 degrees for each of said partial cores.

Abstract translation: 电动机包括：转子，其包括沿着所述交流电动机的圆周方向交替设置的N极磁体和S极磁体;定子铁心，包括沿着所述交流电动机的轴向同轴布置的多个部分磁芯，每个所述部分磁芯 包括沿着所述圆周方向定位在同一圆周上的多个定子极，以及多个环状绕组，每个绕所述圆周方向在所述轴向方向上沿着所述轴向方向延伸， 在所述圆周方向上相邻的定子极。 在相同的所述部分芯之间的所述周向上的每个相邻的两个所述定子极之间的相位角差被设定为对于每个所述部分芯小于360度的值。

公开(公告)号：US20080054737A1

公开(公告)日：2008-03-06

申请号：US11892734

申请日：2007-08-27

Applicant: Hirohide Inayama ,  Noboru Niguchi ,  Masaru Horikawa ,  Ken Matsubara ,  Naotake Kanda

Inventor： Hirohide Inayama ,  Noboru Niguchi ,  Masaru Horikawa ,  Ken Matsubara ,  Naotake Kanda

IPC: H02K1/12 ,  H02K1/02

CPC classification number: H02K1/148 ,  H02K2201/06

Abstract: A stator of an electric motor includes a stator core including an annular yoke. The stator core includes a plurality of teeth formed on, for example, an inner periphery of the yoke and has a coil wound on each of the teeth. Each of the teeth includes first and second end portions opposed to each other in a radial direction of the stator core. The first end portion is connected to the yoke. The second end portion is formed with an axially extending projection extending in an axial direction of the stator core. A coil receiving groove is defined between the axially extending projection and the yoke. The axially extending projection includes a distal end portion in the axial direction, and a root portion adjoining a bottom of the coil receiving groove. In the radial direction, a thickness of the root portion is greater than a thickness of the distal end portion.

Abstract translation: 电动机的定子包括具有环形轭的定子铁芯。 定子铁芯包括形成在例如轭的内周上的多个齿，并且具有缠绕在每个齿上的线圈。 每个齿包括在定子芯的径向上彼此相对的第一和第二端部。 第一端部连接到轭。 第二端部形成有在定子芯的轴向方向上延伸的轴向延伸的突起。 线圈接收槽限定在轴向延伸的突起和轭之间。 轴向延伸的突出部包括在轴向方向上的远端部分和邻接线圈容纳槽的底部的根部部分。 在径向方向上，根部的厚度大于前端部的厚度。

公开(公告)号：US20080036215A1

公开(公告)日：2008-02-14

申请号：US11779825

申请日：2007-07-18

Applicant: Daniel Gizaw ,  David Erdman ,  Joseph Miller ,  Girma Desta

Inventor： Daniel Gizaw ,  David Erdman ,  Joseph Miller ,  Girma Desta

IPC: H02K1/28 ,  H02K1/27 ,  H02K7/18

CPC classification number: H02K21/22 ,  H02K1/16 ,  H02K1/2786 ,  H02K7/1823 ,  H02K7/183 ,  H02K7/1838 ,  H02K15/03 ,  H02K29/03 ,  H02K2201/06 ,  H02K2213/12 ,  Y10T29/49009 ,  Y10T29/49012

Abstract: The present invention is a slow-speed, large-scale generator and assembly procedure for that generator. The magnet is partitioned and assembled piece-by-piece after the rotor and stator have been attached. Guides are used to arrange the magnets so as to give skew to the overall magnet assembly. The shoes of the teeth of the stator have subteeth. The generator is located in the middle of the height of the tower, rather than at the top. The invention makes manufacturing easier and has reduced cogging torque, making large-scale, slow-speed operation more feasible. The efficiency and thus reduced weight of the direct-drive allows the device to be located such that a tower can be smaller and easier to construct and have fewer components.

Abstract translation: 本发明是用于该发电机的低速，大规模发电机和组装程序。 在转子和定子已经安装之后，磁体被逐个分割和组装。 引导件用于布置磁体以使整个磁体组件偏斜。 定子的齿的鞋子是带子的。 发电机位于塔的高度的中间，而不是在顶部。 本发明使制造更容易，齿槽转矩减小，使得大规模，低速运转更可行。 直接驱动的效率和因此减轻的重量允许设备被定位成使得塔架可以更小并且更容易构造并且具有更少的部件。

公开(公告)号：US20080030085A1

公开(公告)日：2008-02-07

申请号：US11881856

申请日：2007-07-30

Applicant: Daniel Gizaw ,  David Erdman ,  Joseph Miller ,  Girma Desta

Inventor： Daniel Gizaw ,  David Erdman ,  Joseph Miller ,  Girma Desta

IPC: H02K9/00 ,  H02K5/20

CPC classification number: H02K5/20 ,  H02K21/14 ,  H02K2201/06

Abstract: The invention is a generator and cooling mechanism. The generator includes a rotor comprising a shaft with a skewed alignment of magnets on a ring, a stator of toothed laminations with coils wound around the teeth, and a housing with cooling chambers. The housing has annular subchambers arranged successively along the length of the generator in such a way that cooling fluid must flow to the opposite side of the generator to pass into the next chamber. Because the housing is highly heat conductive, this structure of annular subchambers increases the uniformity of the fluid temperature.

Abstract translation: 本发明是发电机和冷却机构。 该发电机包括一个转子，该转子包括一个轴，该轴具有一个环上的磁体的倾斜对准，一个具有缠绕在齿周围的线圈的齿形叠片的定子和一个具有冷却室的壳体。 壳体具有沿着发电机的长度连续布置的环形子室，使得冷却流体必须流动到发生器的相对侧以进入下一个室。 因为外壳是高度导热的，所以这种环形子室的结构增加了流体温度的均匀性。

公开(公告)号：US20070267933A1

公开(公告)日：2007-11-22

申请号：US11746552

申请日：2007-05-09

Applicant: Alberto Malvestiti ,  Claudio Malvestiti ,  Sergio Confalonieri

Inventor： Alberto Malvestiti ,  Claudio Malvestiti ,  Sergio Confalonieri

IPC: H01F3/04

CPC classification number: H02K15/024 ,  H02K1/26 ,  H02K2201/06 ,  H02K2201/09 ,  Y10T29/49002 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/49078

Abstract: The present invention relates to a stackable lamination for rotors of electric motors having inclined or helical slots, and a method for manufacturing the lamination. The lamination comprises at least one boss projecting from a face thereof for coupling with a second lamination in the same pack. The two coupled laminations are rotated according to an offset angle. Advantageously, a boss portion has a lower thickness than the remaining portions to allow the same boss to be coupled with a matching boss of the second lamination, the two coupled bosses being angularly offset according to a preset angle. The reduction in the boss thickness is carried out during the manufacturing step of the lamination.

Abstract translation: 本发明涉及一种用于具有倾斜或螺旋槽的电机的转子的可堆叠叠层及其制造方法。 层压件包括至少一个从其表面突出的凸台，用于与同一包装中的第二层压结合。 两个联接的叠片根据偏移角度旋转。 有利地，凸起部分具有比其余部分更薄的厚度，以允许相同的凸台与第二层压体的匹配凸台联接，两个联接的凸起根据预设角度成角度地偏移。 在层叠的制造步骤期间进行凸台厚度的减小。

公开(公告)号：US07294948B2

公开(公告)日：2007-11-13

申请号：US11255404

申请日：2005-10-20

Applicant: Ken George Wasson ,  John Patrick Petro

Inventor： Ken George Wasson ,  John Patrick Petro

IPC: H02K21/26

CPC classification number: H02K1/14 ,  H02K16/00 ,  H02K21/12 ,  H02K2201/06 ,  H02K2201/12

Abstract: A rotor-stator structure for electrodynamic machinery is disclosed to, among other things, minimize magnetic flux path lengths and to eliminate back-iron for increasing torque and/or efficiency per unit size (or unit weight) and for reducing manufacturing costs. In one embodiment, an exemplary rotor-stator structure can comprise a shaft defining an axis of rotation, and a rotor on which at least two magnets are mounted on the shaft. The two magnets can be cylindrical or conical magnets having magnetic surfaces that confront air gaps. In some embodiments, substantially straight field pole members can be arranged coaxially and have flux interaction surfaces formed at both ends of those field poles. Those surfaces are located adjacent to the confronting magnetic surfaces to define functioning air gaps, which are generally curved in shape.

Abstract translation: 公开了一种用于电动机械的转子 - 定子结构，其特征在于使磁通路径长度最小化并消除了用于增加每单位尺寸（或单位重量）的扭矩和/或效率以及降低制造成本的背铁。 在一个实施例中，示例性转子 - 定子结构可以包括限定旋转轴线的轴和在轴上安装有至少两个磁体的转子。 两个磁体可以是具有面对空气间隙的磁性表面的圆柱形或圆锥形磁体。 在一些实施例中，基本上直的场磁极构件可以同轴布置并且在这些场磁极的两端形成磁通相互作用表面。 这些表面位于相邻的磁性表面附近以限定功能性气隙，其通常是弯曲的形状。

公开(公告)号：US20070120426A1

公开(公告)日：2007-05-31

申请号：US11562692

申请日：2006-11-22

Applicant: Shoji Oiwa ,  Masafumi Sakamoto ,  Toru Kobayashi ,  Masahiko Azegami ,  Yasuaki Motegi ,  Takaya Kato ,  Yasuo Matsuda ,  Kazuo Onishi ,  Yuji Enomoto ,  Naoyuki Kanamori ,  Tadashi Fukushima

Inventor： Shoji Oiwa ,  Masafumi Sakamoto ,  Toru Kobayashi ,  Masahiko Azegami ,  Yasuaki Motegi ,  Takaya Kato ,  Yasuo Matsuda ,  Kazuo Onishi ,  Yuji Enomoto ,  Naoyuki Kanamori ,  Tadashi Fukushima

IPC: H02K37/14 ,  H02K21/12

CPC classification number: H02K37/18 ,  H02K1/2713 ,  H02K16/02 ,  H02K2201/06 ,  H02K2213/03

Abstract: A stepping motor includes: a stator having main magnetic poles each having small stator teeth on its tip, a core-back portion that connects outer portions of the poles, and windings wound around the poles; and two sets of rotor units that are arranged in an axial direction and face the stator with an air gap therebetween. Each rotor unit consists of two rotor cores that are separated in the axial direction and a magnet sandwiched thereby and magnetized in the axial direction. Each rotor core has small rotor teeth around its outer surface. The rotor cores of each rotor unit are deviated by ½ pitch of the small rotor teeth, and the two rotor units are arranged to make the magnetic polarities of the small rotor teeth of the adjacent two rotor cores identical. A magnet thickness Tm and a rotor core thickness Tc satisfy 0.25≦Tm/Tc≦0.45.

Abstract translation: 步进电动机包括：定子，其顶端具有小的定子齿的主磁极，连接极的外部的芯部部分和绕磁极缠绕的绕组; 以及两组转子单元，其在轴向方向上布置并且与定子面对并具有气隙。 每个转子单元由沿轴向分离的两个转子芯和由其夹在其中并在轴向上被磁化的磁体组成。 每个转子芯在其外表面周围具有小的转子齿。 每个转子单元的转子磁芯偏离小转子齿的1/2间距，并且两个转子单元布置成使相邻两个转子磁芯的小转子齿的磁极相同。 磁体厚度Tm和转子芯厚度Tc满足0.25