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1. 发明授权

US06946760B2 Brushless permanent magnet motor with high power density, low cogging and low vibration 有权
标题翻译：无刷永磁电机功率密度高，齿槽低，振动小
公开(公告)号：US06946760B2
公开(公告)日：2005-09-20
申请号：US10690886
申请日：2003-10-22
申请人： Alan D. Crapo , Gary E. Horst
发明人： Alan D. Crapo , Gary E. Horst
IPC分类号： D06F37/30 , G11B19/20 , H02K1/08 , H02K1/16 , H02K21/22 , H02K29/03 , H02K5/24
CPC分类号： D06F37/304 , G11B19/2009 , H02K1/08 , H02K1/16 , H02K21/222 , H02K29/03
摘要： A brushless permanent magnet electric machine includes a stator assembly having a stator core that defines (12×n) slots and stator teeth having a generally “T”-shaped cross section. Winding wire is wound around the stator teeth, wherein a radially outer edge of the stator teeth define a crowned surface. A rotor includes permanent magnets defining (12±2)n poles, wherein n is an integer greater than zero.
摘要翻译：无刷永磁电机包括定子组件，该定子组件具有限定（12×n）个槽的定子芯和具有大致“T”形截面的定子齿。绕组线卷绕在定子齿周围，其中定子齿的径向外边界限定凸面。转子包括定义（12±2）n极的永磁体，其中n是大于零的整数。

2. 发明授权

US06717314B2 Interior permanent magnet motor for use in washing machines 失效
标题翻译：用于洗衣机的内置永磁电动机
公开(公告)号：US06717314B2
公开(公告)日：2004-04-06
申请号：US10229826
申请日：2002-08-28
申请人： Gary E. Horst , Alan D. Crapo
发明人： Gary E. Horst , Alan D. Crapo
IPC分类号： H02K127
CPC分类号： H02K21/16 , D06F37/304 , H02K1/276 , H02K3/18
摘要： A high torque density interior permanent magnet machine for use in an appliance is provided that includes a stator assembly defining a plurality of stator teeth, a plurality of concentrated phase windings positioned about the stator teeth, a rotor assembly positioned within the prior bore and a plurality of magnets positioned within the interior of the rotor. Also disclosed in a washing machine including such a machine.
摘要翻译：提供了一种用于器具的高扭矩密度内部永磁体机器，其包括限定多个定子齿的定子组件，围绕定子齿定位的多个集中相绕组，定位在先前孔内的转子组件和多个位于转子内部的磁体。也在包括这种机器的洗衣机中公开。

3. 发明授权

US06727623B2 Reduced impedance interior permanent magnet machine 失效
标题翻译：减阻内部永磁机
公开(公告)号：US06727623B2
公开(公告)日：2004-04-27
申请号：US10229719
申请日：2002-08-28
申请人： Gary E. Horst , Alan D. Crapo
发明人： Gary E. Horst , Alan D. Crapo
IPC分类号： H02K2112
CPC分类号： H02K1/276 , H02K21/16
摘要： An interior permanent magnet machine is disclosed that, in one exemplary embodiment, includes a stator defining a number of stator poles, a rotor, a number of permanent magnets positioned within the interior of the rotor and at least two impedance reduction slits associated with each permanent magnet where the impedance reduction slits are positioned radially outward of the permanent magnets. In further embodiments, each impedance reduction slit is positioned such that at least a portion of the slit is within a defined region.
摘要翻译：公开了一种内部永磁体机器，在一个示例性实施例中，包括限定多个定子极的定子，转子，定位在转子内部的多个永磁体以及与每个永磁体相关联的至少两个阻抗减小狭缝其中阻抗减小狭缝位于永磁体的径向外侧。在另外的实施例中，每个阻抗减小狭缝被定位成使得狭缝的至少一部分在限定的区域内。

4. 发明授权

US07034423B2 Electric power steering system including a permanent magnet motor 有权
公开(公告)号：US07034423B2
公开(公告)日：2006-04-25
申请号：US10431263
申请日：2003-05-07
申请人： Alan D. Crapo , Todd A. Walls , Richard E. Hartsfield, Jr.
发明人： Alan D. Crapo , Todd A. Walls , Richard E. Hartsfield, Jr.
IPC分类号： H20K1/12
CPC分类号： H02K29/03 , B62D5/0403 , H02K1/2733 , H02K1/2773 , H02K1/278 , H02K21/16 , H02K2201/03 , H02K2201/06
摘要： An electric power steering system for a vehicle includes a steering wheel and a steering shaft that is connected to the steering wheel. A worm gear is connected to the steering shaft. A worm is threadably engaged to the worm gear. A permanent magnet motor is connected to the worm. The permanent magnet motor includes a stator with twelve slots and a rotor with ten poles. The rotor includes one or more axial rotor sections. If more than one axial rotor section is employed, the axial rotor sections are rotationally offset. The axial rotor sections are rotationally offset by an offset angle that is equal to a cogging angle divided by the number of axial rotor sections. The rotor includes breadloaf, spoke, radial or arc permanent magnets.

5. 发明授权

US5138207A Flux trapped superconductor sychronous motor with creep compensation 失效
标题翻译：具有蠕变补偿功率的通量捕获超导体同步电动机
公开(公告)号：US5138207A
公开(公告)日：1992-08-11
申请号：US680533
申请日：1991-04-04
申请人： Mohamed A. Hilal , Jerry D. Lloyd , Alan D. Crapo
发明人： Mohamed A. Hilal , Jerry D. Lloyd , Alan D. Crapo
IPC分类号： H02K55/04
CPC分类号： H02K55/04
摘要： A superconductor motor (10) comprises a stator assembly (14) which includes a plurality of solenoids (40-44). A rotor assembly (12) includes a disk (20) of superconductive material in which are entrapped magnetic lines of flux which cause the rotor to function as a magnet. The lines of flux tend to creep throughout the disk over time thereby reducing the magnetic properties of the rotor assembly and decreasing motor performance. A plurality of coils (48a-48l) are carried by the disk. The stator solenoids are energized to produce rotation of the rotor, and the coils are energized in a predetermined manner to compensate for the flux creep in the disk and to restore the rotor assembly's magnetic properties thus to prevent deterioration in motor performance.
摘要翻译：超导体电动机（10）包括定子组件（14），其包括多个螺线管（40-44）。转子组件（12）包括超导材料盘（20），其中夹带磁通线，使转子起磁体的作用。磁通线会随着时间的推移在整个磁盘中蠕变，从而降低转子组件的磁性能并降低电机性能。多个线圈（48a-481）由盘承载。定子螺线管被通电以产生转子的旋转，并且线圈以预定的方式被激励以补偿盘中的磁通蠕变并且恢复转子组件的磁性，从而防止电动机性能的劣化。

6. 发明授权

US5532534A Brushless permanent magnet condenser motor for refrigeration 失效
标题翻译：无刷永磁冷凝电机
公开(公告)号：US5532534A
公开(公告)日：1996-07-02
申请号：US240633
申请日：1994-05-11
申请人： Gerald N. Baker , Alan D. Crapo
发明人： Gerald N. Baker , Alan D. Crapo
IPC分类号： H02K29/00 , H02K5/15 , H02K5/22 , H02K7/14 , H02K15/14 , H02K11/00 , H02K5/00 , H02K5/04
CPC分类号： H02K7/14 , H02K5/225 , H02K2211/03
摘要： A motor, described as a brushless permanent magnet (BPM) motor, has a cup-shaped, open bottomed enclosure having a side wall and a top wall defining a lower interior space. The side wall has a port interrupting a bottom edge. A printed circuit board or other motor electric circuit is positioned above the top wall, below the stator. Electrical conductors electrically connected to the electric motor circuit extend through the top wall and into the interior space. Current supply conductors extend through the side wall port and are electrically connected to the electrical conductors from the circuit. An enclosure cover member has, projecting into the interior space, at least one deflectable prong with an overhanging lip, and a strain relief block positioned adjacent but spaced from the side wall port. The cover has a tool-receiving aperture to permit engagement of a tool with the prong. A ledge, carried by an inner surface of the enclosure, is positioned complementarily to the prong lip to permit the lip to engage a surface of the ledge remote from an inner surface of the cover to hold the cover in position, but to permit the displacement of the prong by a tool inserted through the cover aperture to release the prong and the cover. In the illustrative embodiment, conductor wires from a circuit board mounted above the top wall are mounted in a connector block within the enclosure, and the lip-engaging ledge is part of the connector block. The enclosure and the cover preferably are constructed from electrically insulative material.
摘要翻译：描述为无刷永磁体（BPM）电动机的电动机具有杯形开口的外壳，其具有限定较低内部空间的侧壁和顶壁。侧壁具有中断底部边缘的端口。印刷电路板或其他电动机电路位于定子上方的顶壁上方。电连接到电动机电路的电导体延伸穿过顶壁并进入内部空间。电流源导体延伸穿过侧壁端口并与电路电连接。壳体盖构件具有突出到内部空间中的至少一个具有悬垂唇缘的可偏转尖头和与侧壁端口相邻但间隔开的应变消除块。盖具有工具接收孔，以允许工具与插脚接合。由外壳的内表面承载的凸缘与插脚唇缘互补地定位，以允许唇缘远离盖的内表面接合突出部的表面，以将盖保持在适当位置，但允许位移通过插入通过盖孔的工具释放插脚和盖子。在说明性实施例中，来自安装在顶壁上方的电路板的导线安装在外壳内的连接器块中，并且唇缘接合凸缘是连接器块的一部分。外壳和盖优选地由电绝缘材料构成。

7. 发明授权

US07245054B1 Permanent magnet electric machine having reduced cogging torque 有权
标题翻译：永磁电机具有减小的齿槽转矩
公开(公告)号：US07245054B1
公开(公告)日：2007-07-17
申请号：US09704183
申请日：2000-11-01
申请人： Todd A. Walls , Alan D. Crapo
发明人： Todd A. Walls , Alan D. Crapo
IPC分类号： H01K21/12
CPC分类号： H02K29/03
摘要： A permanent magnet electric machine includes a stator with salient stator poles. A rotor includes two or more axial rotor sections that are rotationally offset by an offset angle equal to the cogging angle divided by the number of axial rotor sections. The axial rotor sections include rotor poles with permanent magnets. In one embodiment, the permanent magnet electric machine has a 12/10 slot/pole combination. The permanent magnets have a magnet dimension angle between 31 and 35 degrees. An air gap ratio of the electric machine is between 1.35 and 2.5. A slot opening ratio of the electric machine is less than or equal to one. In another embodiment, the permanent magnet electric machine has an 18/12 slot/pole combination. The permanent magnets have a magnet dimension angle that is between 25 and 28 degrees. An air gap ratio of the electric machine is between 1.35 and 2.5. A slot opening ratio of the electric machine is less than or equal to one.
摘要翻译：永磁电机包括具有凸极定子极的定子。转子包括两个或更多个轴向转子部分，其被旋转偏移等于齿槽角的偏移角除以轴向转子部分的数量。轴向转子部分包括具有永磁体的转子极。在一个实施例中，永磁电机具有12/10槽/极组合。永磁体具有31至35度的磁体尺寸角。电机的气隙比在1.35和2.5之间。电机的开槽率小于或等于1。在另一个实施例中，永磁电机具有18/12槽/杆组合。永磁体具有在25和28度之间的磁体尺寸角。电机的气隙比在1.35和2.5之间。电机的开槽率小于或等于1。

8. 发明授权

US5144179A Superconducting brushless homopolar motor with multiple winding rotor 失效
标题翻译：超级无刷电动马达与多台转子转子
公开(公告)号：US5144179A
公开(公告)日：1992-09-01
申请号：US679747
申请日：1991-04-03
申请人： Mohamed A. Hilal , Jerry D. Lloyd , Alan D. Crapo
发明人： Mohamed A. Hilal , Jerry D. Lloyd , Alan D. Crapo
IPC分类号： H02K23/52 , H02K23/58 , H02K29/00 , H02K29/12 , H02K31/00 , H02K55/06
CPC分类号： H02K55/06 , H02K29/00 , H02K29/12 , H02K99/20 , Y02E40/627
摘要： A brushless homopolar dynamoelectric machine motor (1) has a rotor (3) with a least one winding (5) having multiple turns. The rotor is inductively charged using a flux pump or a rectifier. Solenoid pairs (15a, 15b, 17a, 17b) comprise field windings for the motor and compensate for winding and field losses. The motor is an axisymmetric motor in which superconductive materials are used.

9. 发明授权

US4858044A Disc drive spindle motor with low cogging torque 失效
标题翻译：具有低齿槽转矩的盘式驱动主轴电机
公开(公告)号：US4858044A
公开(公告)日：1989-08-15
申请号：US115268
申请日：1987-10-30
申请人： Alan D. Crapo
发明人： Alan D. Crapo
IPC分类号： H02K21/22 , G11B19/20 , H02K29/08
CPC分类号： H02K29/08 , G11B19/2009
摘要： A disc drive spindle motor having a stator with nine evenly distributed windings separated by relatively large slot openings, further comprises a rotor having a radially polarized eight-pole magnet. The motor of this invention has three phases, the first phase starting at any winding end of the nine windings and incorporates the windings n, n+2 and n+4 connected in series and being wound in the same direction; the second phase starting at the winding n+3, and incorporating the windings n+5 and n+7 connected in series and being wound in the same direction; and the third phase beginning with the winding n+6 and incorporating the windings n+8 and n+1, connected in series and wound in the same direction. The starting points of the three phases are selected to provide the necessary 120.degree. phase shift between windings.

10. 发明申请

US20100026135A1 ELECTRIC MACHINE 有权
标题翻译：电机
公开(公告)号：US20100026135A1
公开(公告)日：2010-02-04
申请号：US12183769
申请日：2008-07-31
申请人： John H. Hussey , Alan D. Crapo , Thomas M. Bourquin
发明人： John H. Hussey , Alan D. Crapo , Thomas M. Bourquin
IPC分类号： H02K1/16
CPC分类号： H02K1/16 , H02K3/02
摘要： A stator assembly adapted for use in an electric motor. The assembly includes a stator core having an annular rim and a plurality of teeth extending radially inward from the rim. The stator core has an outer diameter, a root tooth diameter and an inner diameter. Each tooth has a root, a neck extending inward from the root, a head opposite the root, and a length measured from its root to its head. The neck has a width. Each adjacent pair of teeth define a slot having an area. The assembly also includes a winding having aluminum and/or copper wrapped around at least three teeth of the stator core. The stator core and winding have four, six or eight magnetic dipoles. The stator core outer diameter is in a range from about 5.1 inches to about 5.9 inches. The stator core inner diameter is less than about 3.0 inches.
摘要翻译：一种适用于电动机的定子组件。组件包括具有环形边缘的定子芯和从边缘径向向内延伸的多个齿。定子铁心具有外径，根齿直径和内径。每根牙齿都有一根根部，一根从根部向内延伸的颈部，一根与根部相对的头部，以及从根部到头部的长度。颈部有宽度。每个相邻的一对齿限定具有一个区域的槽。组件还包括缠绕有定子芯的至少三个齿的铝和/或铜的绕组。定子铁心和绕组有四个，六个或八个磁偶极子。定子芯外径在约5.1英寸至约5.9英寸的范围内。定子铁心内径小于约3.0英寸。

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