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