公开(公告)号：US09866092B2

公开(公告)日：2018-01-09

申请号：US14281187

申请日：2014-05-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michael D. Hanna ,  James G. Schroth ,  John S. Agapiou ,  John C. Morgante

IPC: H02K15/02 ,  H02K15/00 ,  H02K17/16

CPC classification number: H02K15/0031 ,  H02K15/0012 ,  H02K15/024 ,  H02K17/165 ,  Y10T29/49014

Abstract: A method of forming a rotor includes inserting a conductor bar into a slot defined by a lamination stack to define a gap between the conductor bar and the lamination stack. The method further includes, after inserting, swelling the conductor bar within the slot to fill the gap and form the rotor. A rotor is also disclosed.

公开(公告)号：US20140246943A1

公开(公告)日：2014-09-04

申请号：US13782320

申请日：2013-03-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Avoki M. Omekanda ,  John C. Morgante

IPC: H02K17/16 ,  B60L1/00

CPC classification number: B60L1/00 ,  H02K17/205

Abstract: An electric machine includes a stator core defining a number of stator slots (S) extending along a longitudinal axis and angularly spaced about the longitudinal axis. The machine includes a rotor assembly rotatable relative to the stator core and defining first and second ends. The rotor assembly includes a plurality of laminations stacked between the first and second ends. Each respective one of the plurality of laminations defines a number of rotor slots (R) positioned along an outer periphery. A stator slot pitch is defined as 360 divided by the number of stator slots (S). A rotor slot pitch is defined as 360 divided by the number of rotor slots (R) in each respective one of the plurality of laminations. The laminations are skewed relative to each other. An optimal rotor skew angle is determined by the greater of the stator slot pitch and rotor slot pitch.

Abstract translation: 电机包括限定沿着纵向轴线延伸并且围绕纵向轴线成角度间隔的多个定子槽（S）的定子芯。 该机器包括可相对于定子铁心旋转并限定第一和第二端的转子组件。 转子组件包括堆叠在第一和第二端之间的多个叠片。 多个叠片中的每个相应的一个限定了沿着外周定位的多个转子槽（R）。 定子槽间距定义为360除以定子槽数（S）。 转子槽间距被定义为360除以多个叠片中的每个相应的一个中的转子槽（R）的数量。 叠片相对于彼此倾斜。 最佳转子斜角由定子槽间距和转子槽间距的较大者确定。

公开(公告)号：US20150333606A1

公开(公告)日：2015-11-19

申请号：US14281187

申请日：2014-05-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michael D. Hanna ,  James G. Schroth ,  John S. Agapiou ,  John C. Morgante

IPC: H02K15/00 ,  H02K17/16 ,  H02K15/02

CPC classification number: H02K15/0031 ,  H02K15/0012 ,  H02K15/024 ,  H02K17/165 ,  Y10T29/49014

Abstract: A method of forming a rotor includes inserting a conductor bar into a slot defined by a lamination stack to define a gap between the conductor bar and the lamination stack. The method further includes, after inserting, swelling the conductor bar within the slot to fill the gap and form the rotor. A rotor is also disclosed.

Abstract translation: 形成转子的方法包括将导体棒插入到由叠片堆叠限定的狭槽中，以在导体条和叠片之间形成间隙。 该方法还包括在插入之后使导体条在槽内膨胀以填充间隙并形成转子。 还公开了一种转子。

公开(公告)号：US20140319957A1

公开(公告)日：2014-10-30

申请号：US13871756

申请日：2013-04-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lei Hao ,  Chandra S. Namuduri ,  Thomas Wolfgang Nehl ,  John C. Morgante

IPC: H02K17/16

CPC classification number: H02K17/16 ,  H02K2213/03

Abstract: A BAS machine that includes a specific combination of the number of stator slots to the number of rotor bars to reduce torque ripple without the need for skewing the rotor bars. Particularly, the ratio of the number of stator slots to the number of rotor bars is selected to prevent first and second order harmonics between the stator slots and the rotor bars, where the ratio includes 36/26, 54/44, 72/56, 72/58 or 72/62 for a six pole machine, 48/36, 72/52, 72/58 or 84/86 for an eight pole machine, and 60/44 or 60/46 for a ten pole machine.

Abstract translation: BAS机器包括定子槽数与转子杆数量的特定组合，以减少转矩波动，而不需要使转子杆倾斜。 特别地，选择定子槽数与转子条数之比来防止定子槽和转子棒之间的一次和二次谐波，其中该比例包括36 / 26,54 / 44,72 / 56， 一台六极机的72/58或72/62，八极机的48/36，72/52，72/58或84/86，十极机的60/44或60/46。