公开(公告)号：US20110298313A1

公开(公告)日：2011-12-08

申请号：US13112136

申请日：2011-05-20

申请人： Stephen Osborne ,  Colin Crosby ,  Sankarshan Murthy ,  Hung T. Du ,  Earl M. Ortt

发明人： Stephen Osborne ,  Colin Crosby ,  Sankarshan Murthy ,  Hung T. Du ,  Earl M. Ortt

IPC分类号： H02K7/14

CPC分类号： H02K1/185 ,  H02K1/17 ,  H02K23/04

摘要： A permanent magnet electric motor has a stator and a rotor. The stator has a stator housing with at least a North pole and a South pole, each pole including permanent magnets affixed to an inner surface of the stator housing, where at least two of the magnets within a pole have dissimilar characteristics, e.g., different widths or different grades of demagnetization resistance.

摘要翻译： 永磁电动机具有定子和转子。 定子具有至少具有北极和南极的定子壳体，每个极包括固定在定子壳体的内表面上的永久磁体，其中极内的至少两个磁体具有不同的特性，例如不同的宽度 或不同等级的消磁阻力。

公开(公告)号：US20110278966A1

公开(公告)日：2011-11-17

申请号：US13112141

申请日：2011-05-20

申请人： Stephen Osborne ,  Colin Crosby ,  Sankarshan Murthy ,  Hung T. Du ,  Earl M. Ortt

发明人： Stephen Osborne ,  Colin Crosby ,  Sankarshan Murthy ,  Hung T. Du ,  Earl M. Ortt

IPC分类号： H02K1/17

CPC分类号： H02K1/17 ,  H02K7/145 ,  H02K23/04

摘要： A permanent magnet electric motor has a stator and a rotor. The stator has a stator housing with at least a North pole and a South pole. Each pole includes at least two permanent magnets arranged on an inner surface of the stator housing near the pole tips and an overmold of magnetic material molded around the permanent magnets and over the inner surface of the stator between the permanent magnets. Alternatively, an overmold of magnetic material may be provided over an inner surface of the stator, where the thickness of the overmold layer is greater near tips of each pole than in the middle portion of each pole.

摘要翻译： 永磁电动机具有定子和转子。 定子具有至少具有北极和南极的定子壳体。 每个极包括至少两个永磁体，其布置在靠近极尖的定子壳体的内表面上，以及围绕永磁体模制的磁性材料的包覆成型体，并且在永久磁铁之间的定子的内表面上。 或者，可以在定子的内表面上提供磁性材料的包覆模制，其中二次模制层的厚度在每个极的尖端附近比在每个极的中间部分更大。

公开(公告)号：US20130270934A1

公开(公告)日：2013-10-17

申请号：US13919352

申请日：2013-06-17

申请人： David J. Smith ,  Justin Ayers ,  David E. Gillespie ,  Eric E. Hatfield ,  Earl M. Ortt ,  Stephen Osborne ,  Brian Friedman ,  Jarrett A. Dunston

发明人： David J. Smith ,  Justin Ayers ,  David E. Gillespie ,  Eric E. Hatfield ,  Earl M. Ortt ,  Stephen Osborne ,  Brian Friedman ,  Jarrett A. Dunston

IPC分类号： H02K3/52 ,  H02K7/14

CPC分类号： H02K3/521 ,  H02K3/522 ,  H02K7/145 ,  H02K2203/06

摘要： A power tool includes a motor having a stator assembly and a rotor pivotably arranged inside the stator. The stator assembly includes a lamination stack defining a plurality of poles; a plurality of field windings each arranged at at least two opposite poles of said plurality of poles and connected together around the stator assembly; and a plurality of conductive terminals longitudinally arranged along an outer surface of the lamination stack and electrically coupled to the plurality of field windings and a power source.

摘要翻译： 电动工具包括具有定子组件的电动机和可枢转地布置在定子内部的转子。 定子组件包括限定多个极的叠片; 多个励磁绕组，其各自布置在所述多个极的至少两个相对的极处并且围绕定子组件连接在一起; 以及多个导电端子，其沿着层压叠层的外表面纵向排列并且电耦合到多个励磁绕组和电源。

公开(公告)号：US20130162067A1

公开(公告)日：2013-06-27

申请号：US13718501

申请日：2012-12-18

申请人： Colin Crosby ,  Stephen Osborne ,  Jiaqi Zhang

发明人： Colin Crosby ,  Stephen Osborne ,  Jiaqi Zhang

IPC分类号： H02K7/14 ,  H02K1/17

CPC分类号： H02K1/17 ,  H02K7/145

摘要： A power tool is provided, including a housing, a permanent magnet electric motor in the housing, and an output member coupled to the electric motor. The electric motor includes a rotor and a stator with at least a North pole and a South pole. The stator includes a lamination stack of identically-shaped magnetically-conductive laminations with the identically-shaped pockets stamped therein and secured together in alignment to form the at least one magnet pocket at each pole. Each magnet pocket is contained within the lamination stack distanced from the inner and outer surfaces of the lamination stack. The stator further including at least one permanent magnet embedded within each magnet pocket of each pole.

摘要翻译： 提供一种电动工具，包括壳体，壳体中的永磁电动机以及耦合到电动机的输出构件。 电动机包括至少具有北极和南极的转子和定子。 定子包括具有相同形状的导磁叠片的叠片，其中相同形状的凹穴被压印在其中并且被对准地固定在一起以在每个极处形成至少一个磁体袋。 每个磁体袋包含在层叠叠片内，与层压叠层的内表面和外表面间隔开。 定子还包括嵌入每个磁极的每个磁体槽内的至少一个永磁体。

公开(公告)号：US20130162068A1

公开(公告)日：2013-06-27

申请号：US13718891

申请日：2012-12-18

申请人： Colin Crosby ,  Stephen Osborne ,  Jiaqi Zhang ,  Ryan F. Schroeder ,  David J. Smith

发明人： Colin Crosby ,  Stephen Osborne ,  Jiaqi Zhang ,  Ryan F. Schroeder ,  David J. Smith

IPC分类号： H02K7/14 ,  H02K1/17 ,  H02K1/18

CPC分类号： H02K1/17 ,  H02K7/145

摘要： A power tool is provided, including a housing, a permanent magnet electric motor in the housing, and an output member coupled to the electric motor. The electric motor includes a rotor and a stator with at least a North pole and a South pole. The stator includes a lamination stack having loose laminations held together via an overmolded resin. The overmolded resin include a longitudinal overmold layer covering at least a portion of at least one of an inner or outer surfaces of the lamination stack, and two end cap portions extending laterally from the ends of the longitudinal overmold layer to firmly cover ends of the lamination stack.

摘要翻译： 提供一种电动工具，包括壳体，壳体中的永磁电动机以及耦合到电动机的输出构件。 电动机包括至少具有北极和南极的转子和定子。 定子包括具有通过包覆成型树脂保持在一起的松散叠片的层压叠层。 包覆成型的树脂包括覆盖层压叠层的内表面或外表面中的至少一个的至少一部分的纵向包覆模制层，以及从纵向包覆模制层的端部横向延伸的两个端盖部分，以牢固地覆盖层压体的端部 堆栈

公开(公告)号：US20130162062A1

公开(公告)日：2013-06-27

申请号：US13718791

申请日：2012-12-18

申请人： Colin Crosby ,  Stephen Osborne ,  Jiaqi Zhang

发明人： Colin Crosby ,  Stephen Osborne ,  Jiaqi Zhang

IPC分类号： H02K7/14 ,  H02K1/18

CPC分类号： H02K1/17 ,  H02K7/145

摘要： A power tool is provided, including a housing, a permanent magnet electric motor in the housing, and an output member coupled to the electric motor. The electric motor includes a rotor and a stator. The stator includes a lamination stack of identically-shaped laminations with a North pole and a South pole. The stator also includes an end cap arranged at one end of the lamination stack. The end cap includes a polarity keying feature in an outer surface therein at a predetermined position with respect to one of the North pole or the South pole to identify a polarity of the stator.

摘要翻译： 提供一种电动工具，包括壳体，壳体中的永磁电动机以及耦合到电动机的输出构件。 电动机包括转子和定子。 定子包括具有北极和南极的相同形状的叠片的叠片。 定子还包括布置在叠片堆叠的一端的端盖。 端帽在其外表面中包括相对于北极或南极之一的预定位置的极性键控特征，以识别定子的极性。

公开(公告)号：US20050221019A1

公开(公告)日：2005-10-06

申请号：US10817140

申请日：2004-04-02

申请人： Ki-Ho Baik ,  Mark Mueller ,  Stephen Osborne ,  Robert Dean ,  Homer Lem

发明人： Ki-Ho Baik ,  Mark Mueller ,  Stephen Osborne ,  Robert Dean ,  Homer Lem

IPC分类号： G03C5/00 ,  G03F7/38 ,  G03F7/40

CPC分类号： G03F7/40 ,  G03F7/38

摘要： We have discovered that exposure of a photoresist on a photomask substrate to a vacuum after the photoresist has been exposed to imaging radiation results in improved critical dimension uniformity of the developed photoresist. Exposure of the imaged photoresist to vacuum is performed for a period of time sufficient to allow pattern critical dimensions to reach equilibrium across the photoresist. The vacuum treatment process of the invention is typically performed prior to the performance of a post-exposure bake process and prior to development of the photoresist. We have also discovered that exposure of a photoresist on a photomask substrate to a vacuum after the photoresist has been developed results in an improvement in the line edge roughness of pattern openings that have been formed through the photoresist layer thickness.

摘要翻译： 我们已经发现，光致抗蚀剂已经暴露于成像辐射之后，将光致掩模衬底上的光致抗蚀剂曝光到真空，导致显影光致抗蚀剂的临界尺寸的均匀性得到改善。 将成像的光致抗蚀剂暴露于真空进行足够长的时间以允许图案临界尺寸在光致抗蚀剂之间达到平衡。 本发明的真空处理方法通常在进行曝光后烘烤处理之前和在光致抗蚀剂显影之前进行。 我们还发现，在光致抗蚀剂已经显影之后，将光掩模基板上的光致抗蚀剂曝光到真空，导致通过光致抗蚀剂层厚度形成的图案开口的线边缘粗糙度的改善。