Spindle motor having recessed stator coils
    281.
    发明授权
    Spindle motor having recessed stator coils 失效
    主轴电机具有凹陷的定子线圈

    公开(公告)号:US5930076A

    公开(公告)日:1999-07-27

    申请号:US096249

    申请日:1998-06-11

    Applicant: Isao Morita

    Inventor: Isao Morita

    CPC classification number: H02K1/146 H02K21/22 H02K2201/09 Y10T29/49009

    Abstract: A magnet is provided on the inner circumferential surface of a hub rotatable about a central axis C of the motor, and a stator is arranged inside the inner circumferential surface of the hub to oppose the magnet. The stator core of the stator is formed by stacking substantially annular, plate-shaped core forming members, and has an annular portion arranged to be coaxial with the central axis, a plurality of winding portions projecting from the annular portion radially, and pole portions formed on the extending ends of the respective winding portions and opposing the magnet. Each winding portion is squeezed in the stacking direction by plastic formation such that its thickness is smaller than those of the annular portion and pole portion. A coil is wound on each squeezed winding portion.

    Abstract translation: 在能够绕电动机的中心轴线C旋转的轮毂的内周面上设置有磁铁,并且在轮毂的内周面内配置有与磁体相对的定子。 定子的定子芯通过堆叠大致环形的板状芯形成构件而形成,并且具有布置成与中心轴同轴的环形部分,从环形部分径向突出的多个绕组部分,形成的极部 在相应绕组部分的延伸端上并与磁体相对。 每个卷绕部分通过塑性形成在堆叠方向上被挤压,使得其厚度小于环形部分和极部分的厚度。 卷绕在每个挤压的卷绕部分上。

    Small generator
    283.
    发明授权
    Small generator 失效
    小发电机

    公开(公告)号:US5811907A

    公开(公告)日:1998-09-22

    申请号:US735712

    申请日:1996-10-23

    Abstract: A small generator comprising a stator having slots on the inner circumferential surface thereof and generating windings wound on the slots, and a salient-pole type rotor freely rotating inside the stator, in which the stator has a plurality of recesses whose width is essentially the same as the width of openings of the slots and whose area is smaller than the area of the slots, provided at the same intervals as the circumferential intervals of the slots in the vicinity of the opening of the slots; the rotor has circular-arc shaped bulged portions formed outside a shaft hole on the rotor, and crimping portions whose width is smaller than the diameter of a shaft hole provided at the center of the bulged portions; the width of the magnetic path of the rotor winding portion is made more than twice as large as the minimum slot back length of the slots provided on the stator.

    Abstract translation: 一种小型发电机,其特征在于,具有在其内周面上具有槽的定子,并且在所述槽上产生绕组,以及在所述定子内自由旋转的凸极式转子,所述定子具有多个宽度基本相同的凹部 作为槽的开口的宽度,其面积小于槽的面积,以与槽的开口附近的槽的周向间隔相同的间隔设置; 转子具有形成在转子上的轴孔外侧的圆弧形凸出部分,以及宽度小于设置在凸出部分中心的轴孔直径的压接部分; 转子绕组部分的磁路的宽度是设置在定子上的槽的最小槽后长度的两倍以上。

    Method of making a dimple compensated laminar stack
    285.
    发明授权
    Method of making a dimple compensated laminar stack 失效
    制作凹坑补偿层叠堆叠的方法

    公开(公告)号:US5771565A

    公开(公告)日:1998-06-30

    申请号:US782985

    申请日:1997-01-14

    Inventor: Harry J. Walters

    Abstract: An apparatus and method for manufacturing laminated parts from a plurality of laminas, in which the laminas for forming the laminated parts are blanked from strip stock material. The laminas and are then cut and stacked to form the laminated part. The apparatus includes a measuring device, such as a linear variable differential transducer, for measuring the thickness of successive sections of the strip stock at a first location of each section. The measuring device also measures the thickness of the strip stock sections at a second location of each section. A controller, such as a computer or a programmable logic controller, receives the thickness values at the first location and second location of the strip stock sections from the measuring device and computes a value of a difference therebetween. The controller also computes a running sum of the difference values for the strip stock sections and compares the difference values sum to a predetermined value. A punching device, such as one or more front and rear slide operated punches, is also included which is activated by the controller to provide a protuberance at selected locations upon the strip stock sections when the sum of the difference values determined by the controller equals or exceeds the predetermined value. Respective air valves and cylinders may operatively connect to each punch to cause the punch to impart a protuberance upon receipt of an appropriate signal from the controller. The protuberance has a depth approximately equal to the predetermined value.

    Abstract translation: 用于从多个薄片制造层压部件的装置和方法,其中用于形成层压部件的薄片由带材料材料冲裁。 然后切片并层叠以形成层压部件。 该装置包括诸如线性可变差分换能器的测量装置,用于在每个部分的第一位置处测量带状原料的连续部分的厚度。 测量装置还测量每个部分的第二位置处的带材部分的厚度。 诸如计算机或可编程逻辑控制器的控制器从测量装置接收条带存储部分的第一位置和第二位置处的厚度值,并计算它们之间的差值。 控制器还计算条带存储部分的差值的运行总和并将差值和与预定值进行比较。 还包括冲压装置,例如一个或多个前后滑动操作的冲头,其由控制器激活,以在由控制器确定的差值的总和等于或等于或在 超过预定值。 各个空气阀和气缸可以可操作地连接到每个冲头,以在接收到来自控制器的适当信号时使冲头赋予凸起。 突起的深度大致等于预定值。

    Method for joining a motor shell and base
    286.
    发明授权
    Method for joining a motor shell and base 失效
    用于连接电机壳和基座的方法

    公开(公告)号:US5299350A

    公开(公告)日:1994-04-05

    申请号:US897292

    申请日:1992-06-11

    Abstract: A cylindrical shell for a motor/generator may be formed by cutting a rectangular blank, offsetting an edge, rolling the blank into a cylinder with the offset edge overlapping its opposite edge, punching through the overlapping edges to interlock them and form the cylinder, and then joining a base to the cylinder through a similar interlocking, punching process. In a variation, the base may be simultaneously joined to the cylinder as the edges are punched. Holes, or holes with locating nibs, may be used to align the blank in a cylindrical shape to reliably control the shell I.D. during fabrication.

    Abstract translation: 用于电动机/发电机的圆柱形壳体可以通过切割矩形坯料,偏移边缘,将坯料滚动成圆柱体而形成,其中偏移边缘与其相对边缘重叠,冲切通过重叠边缘以将其联锁并形成圆柱体,以及 然后通过类似的互锁冲孔过程将基座连接到气缸。 在一个变型中,当冲压边缘时,底座可以同时连接到圆筒。 孔或具有定位笔尖的孔可用于将坯料对准为圆柱形,以可靠地控制壳体I.D。 在制造过程中。

    Process of structuring stator of built-in motor
    287.
    发明授权
    Process of structuring stator of built-in motor 失效
    内置电机定子结构工艺

    公开(公告)号:US5168662A

    公开(公告)日:1992-12-08

    申请号:US820836

    申请日:1992-01-15

    CPC classification number: H02K1/04 H02K1/16 H02K2201/09 Y10S174/20

    Abstract: The stator of a built-in motor must be firmly and accurately mounted on the spindle head housing or the like of a machine tool. A stator core (10), i.e., a principal component of the stator is welded partially at the circumference (14) thereof, and then the circumference of the stator core (10) held by a mandrel is finished to an accurate outside diameter by grinding. The stator core (10) thus constructed is subjected to a deformation with a lapse of time after the mandrel has been removed. To solve this problem, each lamination (12) of the stator core (10) is coated with a thermosetting adhesive, to be thereby joined together, and each lamination (12) is provided with a plurality of pressed projections (22) to be joined together by weld portions (20) on the circumference of the stator core (10), or each lamination (12) is joined together by pressing a serrated bar (26) into a bore (24) thereof, without a pressed projection (22).

    Abstract translation: 内置电机的定子必须牢固且准确地安装在机床的主轴头壳体等上。 定子铁心(10)即定子的主要部件部分焊接在其周边(14)处,然后由心轴保持的定子铁芯(10)的圆周通过磨削加工成精确的外径 。 如此构造的定子铁芯(10)在心轴已经被去除之后经历了随时间的变形。 为了解决这个问题,定子铁芯(10)的每个层叠(12)涂覆有热固性粘合剂,从而接合在一起,并且每个层压体(12)设置有多个待接合的按压突起(22) 通过将定子芯(10)的圆周上的焊接部分(20)或每个层压体(12)通过将锯齿形杆(26)压入其中的孔(24)而不受压突起(22)而连接在一起, 。

    Engine starter
    288.
    发明授权
    Engine starter 失效
    发动机起动器

    公开(公告)号:US4900945A

    公开(公告)日:1990-02-13

    申请号:US254937

    申请日:1988-09-01

    Abstract: An engine starter comprises a hollow armature rotary shaft having a plurality of cam surfaces of an over-running clutch mechanism and having at one end a reduced-diameter portion on which a sleeve member is press fit and at the other end a stopper. The sleeve member has a rolled portion on its outer circumference on which an armature core is secured by press fit so that the armature core is firmly held by the sleeve member and the stopper on the armature rotary shaft. The armature rotary shaft may have a polygonal cross-sectional outer configuration so that the armature core can be firmly press-fit onto polygonal armature rotary shaft. A method for concurrently brazing and magnetically annealing the armature core comprises heating the armature assembly between 780.degree. C. and 850.degree. C.

    Abstract translation: PCT No.PCT / JP88 / 00097 Sec。 371日期:1988年9月1日 102(e)1988年9月1日PCT PCT日期:1988年2月3日PCT公布。 出版物WO88 / 05864 日本1988年8月11日。发动机起动器包括中空电枢旋转轴,其具有多个凸轮表面的超行程离合器机构,并且其一端具有缩径部分,套筒部件压配在该直径部分上, 另一端塞子。 套筒构件在其外圆周上具有卷绕部分,通过压配合固定电枢芯,使得电枢芯由套筒构件和止动器牢固地保持在电枢旋转轴上。 电枢旋转轴可以具有多边形横截面外部构造,使得电枢芯可以牢固地压配合到多边形电枢旋转轴上。 用于同时钎焊和磁退火电枢芯的方法包括在780℃和850℃之间加热电枢组件。

    Apparatus for manufacture of laminated parts
    289.
    发明授权
    Apparatus for manufacture of laminated parts 失效
    用于制造层压件的设备

    公开(公告)号:US4619028A

    公开(公告)日:1986-10-28

    申请号:US478692

    申请日:1983-03-25

    Abstract: Elongated thin strip stock is blanked to form interlocking laminas for electric motor or generator rotors or stators at successive blanking stations. At a final assembly station the laminas are stacked and pressed into interlocking relationship. In response to an operator input a predetermined number of reversals, or half turns about the stack axis of the previously stacked lamina are provided in order to compensate for nonuniform strip thickness to obtain a rotor or stator of substantially uniform height. Alternatively the thickness of the strip stock is gauged at transversely spaced points on the strip to determine cross feed thickness variation in the strip whereupon the stacked laminas are automatically provided with a number of reversals about the stack axis in response to a thickness differential that would result in a parallelism error in the stack that exceeds a predetermined amount. Rotor conductor slots are formed in the stacked laminas and are skewed to the stack axis by providing arcuate indexing of each lamina relative to the next preceding lamina in the stack by an arcuate increment that is automatically determined in response to operator entered inputs relative to the stack height, the skew angle, nominal lamina thickness and skew direction.

    Abstract translation: 细长的薄条坯料被冲裁,以形成用于电动马达或发电机转子或连续冲压站定子的联锁层压板。 在最后的装配站,层叠被堆叠并压制成互锁关系。 响应于操作者输入预定数量的反转,或者围绕先前堆叠的层的堆叠轴线的半圈设置,以便补偿不均匀的条带厚度,以获得基本上均匀的高度的转子或定子。 或者,条带坯料的厚度在条带上的横向间隔的点处被测量,以确定条带中的交叉进给厚度变化,由此响应于将导致的厚度差异,堆叠的薄片自动提供围绕堆叠轴线的多个反转 在堆叠中的并行误差超过预定量。 转子导体槽形成在堆叠层叠中并且通过相对于堆叠中的下一个先前层板的每个层板的弓形分度提供弓形增量而形成并且倾斜到堆叠轴线,该弓形增量响应于操作者输入的相对于堆叠的输入自动确定 高度,倾斜角度,标称层厚度和偏斜方向。

    Small size electric motor
    290.
    发明授权
    Small size electric motor 失效
    小型电动机

    公开(公告)号:US4514654A

    公开(公告)日:1985-04-30

    申请号:US589841

    申请日:1984-03-14

    Applicant: Rolf Muller

    Inventor: Rolf Muller

    CPC classification number: H02K1/06 H02K2201/06 H02K2201/09

    Abstract: A small-size electromotor includes a stator and a rotor enclosed by a housing. In order to reduce weight and moment of inertia of the rotor and stator in the electric motor the rotor and the stator are formed of magnetic conductors assembled from iron sheets. The iron sheets are spaced from one another by layers of reduced magnetic conductivity, which may be layers of air or any other non-conductive material.

    Abstract translation: 小型电动机包括定子和由壳体包围的转子。 为了减轻电动机中的转子和定子的重量和转动惯量,转子和定子由铁板组装的磁导体形成。 铁片彼此间隔开一层导电性降低的层,其可以是空气层或任何其它非导电材料。

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