公开(公告)号：US5949172A

公开(公告)日：1999-09-07

申请号：US71123

申请日：1998-05-04

Applicant: Masayuki Katagiri

Inventor： Masayuki Katagiri

IPC: H02K1/14 ,  H02K1/08 ,  H02K1/24 ,  H02K1/26 ,  H02K23/04 ,  H02K23/40 ,  H02K29/00

CPC classification number: H02K23/405 ,  H02K1/24 ,  H02K2201/06 ,  Y10T29/49009 ,  Y10T29/49012

Abstract: In the motor (1), when a drive coil (17) is wound around a salient pole (114), the opening width of an armature core (11) is kept sufficiently large to be able to wind the drive coil (17) properly and easily. After the drive coil (17) is wound, a magnetic flux collecting plate (50) including a peripheral-direction extension portion (51) and an axial-direction extension portion (52) is mounted onto the outer peripheral surface (118) of a bow-shaped portion (117) of the salient pole (114.) In this mounting operation, two pawl-shaped positioning engagement portions (55) respectively formed in the magnetic flux collecting plate (50) are fitted into grooves (119) which are respectively formed in the upper and lower end faces of the armature core (11).

Abstract translation: 在电动机（1）中，当驱动线圈（17）缠绕在凸极（114）周围时，电枢铁心（11）的开口宽度保持足够大，以便能够适当地卷绕驱动线圈（17） 并且容易。 在卷绕驱动线圈（17）之后，将包括周向延伸部（51）和轴向延伸部（52）的磁通收集板（50）安装在驱动线圈（17）的外周面 突极（114）的弓形部分（117）。在该安装操作中，分别形成在磁集合板（50）中的两个棘爪形定位接合部分（55）装配到凹槽（119）中，凹槽 分别形成在电枢铁芯（11）的上端面和下端面上。

公开(公告)号：US5936326A

公开(公告)日：1999-08-10

申请号：US84101

申请日：1998-05-26

Applicant: Atsushi Umeda ,  Tsutomu Shiga ,  Shin Kusase

Inventor： Atsushi Umeda ,  Tsutomu Shiga ,  Shin Kusase

IPC: H02K3/04 ,  H02K1/16 ,  H02K1/22 ,  H02K1/24 ,  H02K3/02 ,  H02K3/12 ,  H02K3/18 ,  H02K3/24 ,  H02K3/28 ,  H02K3/32 ,  H02K3/44 ,  H02K3/50 ,  H02K3/52 ,  H02K5/20 ,  H02K7/10 ,  H02K9/06 ,  H02K19/22 ,  H02K19/36

CPC classification number: H02K19/36 ,  H02K1/165 ,  H02K1/243 ,  H02K19/22 ,  H02K21/044 ,  H02K3/02 ,  H02K3/12 ,  H02K3/18 ,  H02K3/24 ,  H02K3/28 ,  H02K3/32 ,  H02K3/44 ,  H02K3/50 ,  H02K3/528 ,  H02K5/20 ,  H02K9/06 ,  H02K2201/06 ,  H02K2203/09 ,  H02K7/1008

Abstract: It is an object of this invention to provide an alternator for a vehicle in which all electric conductors forming bridge portions are sufficiently exposed to cooling winds so that the cooling performance is remarkably improved. It is another object of this invention to provide an alternator for a vehicle which is excellent in cooling performance, insulating characteristic, and heat resisting property. An alternator for a vehicle includes a stator. The stator includes an iron core 22, an electric conductor 21, and an insulator 23. The electric conductor 21 forms a winding on the iron core 22. The insulator 23 provides electric insulation between the electric conductor 21 and the iron core 22. The stator is supported by a housing. The dimension of openings of slots in the iron core 22 is smaller than the distance between inner side surfaces of the slots. The electric conductor 21 has accommodated portions accommodated in the slots, and bridge portions connecting the accommodated portions. Pieces of the electric conductor which extend out of the slots are approximately separated into a conductor groups 21f located on outer radial sides of the slots and a conductor group 21g located on inner radial sides of the slots, and form the bridge portions. Predetermined gaps are provided between pieces of the electric conductor in the bridge portions. The bridge portions have ridge portions inclined in a same circumferential direction in each of the outer radial side and the inner radial side, and top portions connecting the ridge portions along an axial and radial direction.

公开(公告)号：US5911453A

公开(公告)日：1999-06-15

申请号：US49317

申请日：1998-03-27

Applicant: John H. Boyd, Jr. ,  Daniel M. Saban

Inventor： John H. Boyd, Jr. ,  Daniel M. Saban

IPC: H02K1/16 ,  H02K3/28 ,  H02K5/15 ,  H02K5/173 ,  H02K5/22 ,  H02K11/00 ,  H02K15/02 ,  H02K17/06 ,  H02K17/16 ,  H02K17/30

CPC classification number: H02K17/30 ,  H02K1/165 ,  H02K11/25 ,  H02K11/40 ,  H02K17/06 ,  H02K17/165 ,  H02K3/28 ,  H02K5/15 ,  H02K5/1732 ,  H02K5/225 ,  H02K15/024 ,  H02K2201/06 ,  Y10T29/49009 ,  Y10T29/49078

Abstract: A dynamoelectric machine constructed for speed and accuracy of manufacturing has a stator core constructed of 90.degree. symmetrical stator laminations and the windings have differing numbers of poles which overlap in slots of the stator core are wound of the core formed by the laminations in unique fashion. The rotor bars of the machine are skewed to optimize performance of the machine when in the form of a single phase induction motor. Magnet wire leads of the windings are connected directly to terminals on a plug and terminal assembly which is formed for positive location on an end frame of the machine without welding or other fastening to the end frame. The end frames of the machine and stator laminations forming the stator core are formed so as to increase the precision of the final position of the stator relative to the rotor assembly of the dynamoelectric machine. The end frames are constructed for grounding without the use of fasteners or wire. The engagement of the end frames with the stator core is employed as the basis for alignment of the machine components.

Abstract translation: 用于制造速度和精度的电动机具有由90°对称的定子叠片构成的定子芯，并且绕组具有不同数量的极，在定子芯的槽中重叠，以独特的方式缠绕形成的芯。 当以单相感应电动机的形式时，机器的转子条倾斜以优化机器的性能。 绕组的磁线引线直接连接到插头和端子组件上的端子，插头和端子组件形成为在机器的端框架上的正位置，而不需要焊接或其他紧固到端框架。 形成定子铁芯的机器和定子叠片的端框形成为提高定子相对于电动机的转子组件的最终位置的精度。 端框架构造用于接地而不使用紧固件或电线。 将端框与定子芯的接合用作机器部件对准的基础。

公开(公告)号：US5886449A

公开(公告)日：1999-03-23

申请号：US694427

申请日：1996-08-08

Applicant: Alan J Mitcham

Inventor： Alan J Mitcham

IPC: H02K16/00 ,  H02K21/12 ,  H02K37/12 ,  H02K1/22

CPC classification number: H02K21/125 ,  H02K37/12 ,  H02K2201/06 ,  H02K2201/12

Abstract: An electrical machine has a rotor shaft which carries a plurality of rotor discs for rotation therewith. Each rotor disc has two pairs of rotor rims secured thereto. Each rotor rim consists of a single row of alternate magnets and pole pieces and is opposed by a series of stator cores which straddle the rotor rim. The stator cores are `c` shaped so that they receive flux from two adjacent magnets and close around two opposite rotor poles on either side of the rotor rim. The stator cores, formed by winding electrical steel around a former, reduce the losses caused by eddy currents generated when flux impinges on the side faces of the stator core.

Abstract translation: 电机具有转子轴，该转子轴承有多个用于与其一起旋转的转子盘。 每个转子盘具有固定到其上的两对转子轮缘。 每个转子轮辋由一排交替磁体和极片组成，并且与一系列定子铁心相对，该定子铁心跨过转子轮辋。 定子铁芯'c'形，使得它们接收来自两个相邻磁体的磁通，并且关闭转子边缘两侧的两个相对的转子极。 定子铁心是通过将电钢绕在前者上而形成的，减少了当磁通量撞击定子铁心的侧面时产生的涡流所引起的损耗。

公开(公告)号：US5886446A

公开(公告)日：1999-03-23

申请号：US057516

申请日：1998-04-09

Applicant: Masayuki Katagiri ,  Kazutaka Kobayashi

Inventor： Masayuki Katagiri ,  Kazutaka Kobayashi

IPC: H02K1/24 ,  H02K3/34 ,  H02K15/095 ,  H02K23/04 ,  H02K23/40 ,  H02K3/487

CPC classification number: H02K1/24 ,  H02K23/405 ,  H02K15/095 ,  H02K2201/06 ,  Y10T29/49009 ,  Y10T29/49012

Abstract: In the stage of winding a drive coil (17) on salient poles (114) in the assembling of a motor (1), the opening width of an armature core (11) is wide enough to allow easy and proper winding of the drive coil (17). After the winding of the drive coil (17), opening-width adjusting members (50A) are put within open slots (100), to thereby reduce the opening width of the armature core (11) at the flux gathering parts (54A) and (55A) of the opening-width adjusting member (50A). The opening-width adjusting member (50A) is positioned and fixed, by its elasticity, within each open slot.

Abstract translation: 在电动机（1）的组装中将驱动线圈（17）卷绕在凸极（114）上的阶段，电枢铁心（11）的开口宽度足够宽以便于驱动线圈 （17）。 在驱动线圈（17）的卷绕之后，将开口宽度调节部件（50A）放入开放槽（100）内，从而减小焊剂收集部（54A）的电枢铁心（11）的开口宽度， （50A）的开口宽度调节部件（55A）。 开口宽度调节构件（50A）通过其弹性定位并固定在每个开口槽内。

公开(公告)号：US5886440A

公开(公告)日：1999-03-23

申请号：US857221

申请日：1997-05-16

Applicant: Masahiro Hasebe ,  Yasuo Yamaguchi

Inventor： Masahiro Hasebe ,  Yasuo Yamaguchi

IPC: H02K21/14 ,  H02K1/27 ,  H02K19/10 ,  H02K21/12

CPC classification number: H02K1/278 ,  H02K19/103 ,  H02K21/14 ,  H02K2201/06

Abstract: A motor capable of suppressing the torque ripple includes a rotor, a stator and stator coils. The rotor is provided with a plurality of permanent magnets which are arranged at a constant pitch in the circumferential direction. The stator surrounds the rotor and is formed with a plurality of stator poles and a slot located between every two stator poles. The stator coils are wound on the stator and are supplied with three-phase sinusoidal current. The rotor is composed of a plurality of rotor portions which are arranged in the axial direction of the rotor. The difference between the open angle of each permanent magnet of one rotor portion and the open angle of each permanent magnet of another rotor portion is an integral multiple of 30.degree. in electrical angle. When three-phase sinusoidal current is applied to the stator coils, a torque ripple is generated. However, the phase of a torque ripple generated at one of the rotor portions arranged in the axial direction can be made different from the phase(s) of torque ripple(s) generated at other rotor portion(s).

Abstract translation: 能够抑制转矩波动的电动机包括转子，定子和定子线圈。 转子设置有沿周向以恒定间距排列的多个永久磁铁。 定子围绕转子并且形成有多个定子极和位于每两个定子极之间的槽。 定子线圈缠绕在定子上，并提供三相正弦电流。 转子由转子的轴向配置的多个转子部构成。 一个转子部分的每个永磁体的开放角度与另一个转子部分的每个永磁体的开放角度之间的差异是电角度为30°的整数倍。 当三相正弦电流施加到定子线圈时，产生转矩脉动。 然而，可以使沿轴向配置的一个转子部分产生的转矩脉动的相位与其他转子部分产生的转矩波动的相位不同。

公开(公告)号：US5773908A

公开(公告)日：1998-06-30

申请号：US760755

申请日：1996-12-05

Applicant: Charles M. Stephens ,  Wen Liang Soong

Inventor： Charles M. Stephens ,  Wen Liang Soong

IPC: H02K1/14 ,  H02K29/03 ,  H02P6/00 ,  H02P25/04 ,  H02K1/12

CPC classification number: H02P25/04 ,  H02K1/146 ,  H02K29/03 ,  H02P6/26 ,  H02K2201/06

Abstract: A motor with positive torque parking positions. The motor includes a rotor which is rotatable about an axis of rotation and a stator in magnetic coupling relation with the rotor. The stator includes a plurality of teeth each having a radially extending shaft and an axially extending face. The faces of the stator teeth define an aperture for receiving the rotor and the faces of the stator teeth and the rotor define an air gap therebetween. Each stator tooth has a notch in its face that is approximately at least as wide as the shaft of the stator tooth so that the stator has a magnetic configuration relative to the rotor for parking the rotor in a rest position corresponding to a positive torque starting position. The motor also includes a winding on the shafts of the stator teeth and a control circuit for controlling current in the winding whereby an electromagnetic field is produced for rotating the rotor at a desired speed or torque during operation of the motor.

Abstract translation: 具有正扭矩停车位置的电机。 电动机包括可绕旋转轴线旋转的转子和与转子呈磁耦合关系的定子。 定子包括多个齿，每个齿具有径向延伸的轴和轴向延伸的面。 定子齿的表面限定了用于接收转子的孔，并且定子齿和转子的面限定了它们之间的气隙。 每个定子齿在其表面上具有大致至少与定子齿的轴一样宽的切口，使得定子具有相对于转子的磁性构造，用于将转子停放在对应于正转矩起始位置的静止位置 。 电动机还包括定子齿的轴上的绕组和用于控制绕组中的电流的控制电路，由此产生用于在电动机操作期间使转子以期望的速度或转矩旋转的电磁场。

公开(公告)号：US5355044A

公开(公告)日：1994-10-11

申请号：US793345

申请日：1992-01-14

Applicant: Hiroyuki Uchida ,  Tomonaga Yamamoto ,  Takashi Okamoto

Inventor： Hiroyuki Uchida ,  Tomonaga Yamamoto ,  Takashi Okamoto

IPC: H02K1/27 ,  H02K21/00

CPC classification number: H02K1/278 ,  H02K2201/06

Abstract: To reduce torque ripples appearing in an output torque of an electric synchronous motor, the rotor (10) is divided into 2.sup.n rotor elements (101, 102, 103, and 104) the rotor elements of each of 2.sup.n-1 pairs of rotor elements (101, 102; 103, 104) being circumferentially shifted from one another around an axis of the rotor by an angle corresponding to a half of the wavelength (.lambda.) of a first (A) of "n" kinds of cyclic torque ripples (A and B) to cancel the first kind of torque ripple, and the 2.sup.n-1 pairs of rotor elements (101, 102; 103, 104) being arranged to be grouped in 2.sup.n.sup.-2 sections of rotor elements, each section including two pairs of rotor elements, and the 2.sup.n-2 sections of rotor elements being circumferentially shifted from one another around the axis of the rotor by an angle corresponding to a half of a wavelength (.lambda.) to cancel a second of the "n" kinds of torque ripple, and eventually, the rotor structure being structured so that the rotor elements are further circumferentially shifted from one another to cancel the "n"th torque ripple component.

Abstract translation: PCT No.PCT / JP91 / 00640 Sec。 371日期：1992年1月14日 102（e）日期1992年1月14日PCT提交1991年5月15日PCT公布。 公开号WO91 / 18439 日期：1991年11月28日。为了减少出现在同步电动机的输出转矩中的扭矩波动，转子（10）被分成2n个转子元件（101,102,103和104），转子元件分别为2n -1对的转子元件（101,102; 103,104）围绕转子的轴线彼此周向地偏移一个对应于第一（A）“n”的一半的角度的角度， 种类的循环扭矩波纹（A和B）以抵消第一种扭矩波动，并且2n-1对转子元件（101,102; 103,104）被布置成分组在转子元件的2n-2个部分 每个部分包括两对转子元件，并且转子元件的2n-2部分围绕转子的轴线彼此周向地移位相当于波长（λ）的一半的角度，以取消第二个 “n”种扭矩波动，最终，转子结构构造成使得转子元件 彼此进一步周向移位以抵消“n”个扭矩波动分量。

公开(公告)号：US5315198A

公开(公告)日：1994-05-24

申请号：US958327

申请日：1992-12-16

Applicant: Vilmos C. Toroh

Inventor： Vilmos C. Toroh

IPC: H02K1/06 ,  H02K1/24 ,  H02K1/27 ,  H02K21/00

CPC classification number: H02K1/278 ,  H02K1/06 ,  H02K1/24 ,  H02K2201/06

Abstract: A synchronous machine having a stator and a rotor, of which one, preferably the stator, is provided with a three-phase, symmetrical, Y-connected armature winding intended to have a sinusoidal line voltage or a sine-wave supply current, whereas the other, preferably the rotor, carries a field magnet system. The magnetic flux generated in the air gap between the ferromagnetic cores of the stator and the rotor and linked with the armature winding has a density whose mean value, as determined over the axial extension of the air gap, varies along the air gap in its circumferential extension in accordance with a uniform periodic function whose positive and negative half-periods are mirror images of one another and whose period coincides with the extension of two pole pitches of the field magnet system, and whose shape deviates from a purely sinusoidal shape. Within one-half of one positive half-period of the function f(.alpha., .beta.)=1 for 0.ltoreq..alpha..ltoreq..pi./2 and f(.alpha.,.beta.)=cos(.alpha.-.beta.)-sin.beta./1-sin.beta. for .beta.

Abstract translation: PCT No.PCT / SE91 / 00293 Sec。 371日期：1992年12月16日 102（e）日期1992年12月16日PCT 1991年4月24日PCT PCT。 WO91 / 16754 PCT出版物 日期为1991年10月31日。具有定子和转子的同步电机，其中优选为定子的同步电机设置有三相对称的Y连接的电枢绕组，其旨在具有正弦线电压或正弦 - 电源电流，而另一个，优选地，转子承载场磁体系统。 在定子和转子的铁磁芯之间的空气隙中产生的磁通量与电枢绕组相连接，其密度的平均值是沿气隙的轴向延伸确定的，沿着其周向的气隙而变化 根据均匀周期函数的延伸，其正半周期和负半周期是彼此的镜像，并且其周期与场磁体系统的两个极间距的延伸一致，并且其形状偏离纯正弦形状。 f（α，β）= cos（α-β）-sinβ的函数f（α，β）= 1的正半周期的一半， / 1-sinβ，其中α是气隙的圆周方向的角度，在半个半周期内从0度到90度的电压变化，β是常数 不大于40度左右。

公开(公告)号：US5107159A

公开(公告)日：1992-04-21

申请号：US402225

申请日：1989-09-01

Applicant: Jeffrey A. Kordik

Inventor： Jeffrey A. Kordik

IPC: H02K1/14 ,  H02K29/08 ,  H02P6/06

CPC classification number: H02K1/146 ,  H02K29/08 ,  H02P6/06 ,  H02K2201/06

Abstract: A two phase unipolar brushless direct current motor with asymmetrically arranged pole positions including a rotor portion (12) mounted upon a shaft subassembly (14) and rotating therewith with respect to a stator portion (16). The rotor portion (12) includes a field magnet (22) which is divided into alternately polarized zones (26) and (28) which are of dissimilar sizes, and a commutator magnet (38) to provide for electrical timing. The stator portion (16) includes salient pole positions (44) which are asymmetrically arranged around the circumference of the stator core.A latching hall effect sensor (82) is also provided to act as a commutator triggering element. The motor (10) is characterized in that the asymmetrical arrangement of its magnetic elements prevents there being a zero torque or a detent position. The primary usage of the motor (10) is in digital data storage devices.

Abstract translation: 一种具有不对称布置的极位置的双相单极无刷直流电动机，包括安装在轴子组件（14）上并相对于定子部分（16）旋转的转子部分（12）。 转子部分（12）包括被分成交替偏振区域（26）和（28）的不同尺寸的磁场磁体（22）和用于提供电定时的换向器磁体（38）。 定子部分（16）包括围绕定子芯的圆周非对称布置的凸极位置（44）。 闭锁霍尔效应传感器（82）也用作换向器触发元件。 电动机（10）的特征在于，其磁性元件的不对称布置防止了零转矩或制动位置。 电动机（10）的主要用途是数字数据存储装置。