公开(公告)号：EP4020768A1

公开(公告)日：2022-06-29

申请号：EP21216265.5

申请日：2021-12-21

申请人： Black & Decker Inc.

发明人： GOHN, Barak N. ,  CROSBY, Colin M. ,  LOWE, Nicholas J. ,  CLARKE, James R. ,  HECK, Daniel ,  SIKORA, Michael P. ,  ROGERSON, Christian B. ,  SCHROEDER, Ryan F. ,  MOHAN, Connor T. ,  GROVE, Michael D.

IPC分类号： H02K3/52 ,  H02K11/215 ,  H02K29/08 ,  H02K7/14 ,  H02K29/00

摘要： A brushless direct-current (BLDC) motor for a power tool includes a rotor assembly; a stator assembly including a stator having stator teeth forming slots therebetween and stator windings wound around the stator teeth; stator terminals extending substantially parallel to the longitudinal axis from the stator assembly and being substantially aligned with centerlines of the slots of the stator assembly; and a circuit board mounted on the stator terminals adjacent the stator assembly. The circuit board includes conductive traces facilitating a one of a delta or a series connection between the stator windings. An end insulator is provided at an axial end of the stator to electrically insulate the stator from the stator windings, the end insulator including support members to support the stator terminals relative to the stator assembly. The circuit board is mounted and fastened to the support members.

公开(公告)号：EP4020766A1

公开(公告)日：2022-06-29

申请号：EP21216342.2

申请日：2021-12-21

申请人： Black & Decker Inc.

发明人： GOHN, Barak N. ,  CROSBY, Colin M. ,  LOWE, Nicholas J. ,  CLARKE, James R. ,  HECK, Daniel ,  SIKORA, Michael P. ,  ROGERSON, Christian B. ,  SCHROEDER, Ryan F. ,  MOHAN, Connor T. ,  GROVE, Michael D.

IPC分类号： H02K3/28 ,  H02K7/14 ,  H02K29/00 ,  H02K3/52 ,  H02K1/14 ,  H02K11/215 ,  H02K11/33

摘要： A brushless direct-current (BLDC) motor includes a stator assembly and a rotor assembly including a rotor supporting permanent magnets rotatable relative to the stator assembly. The stator assembly includes a stator comprising a stator core and stator teeth radially extending from the stator core and defining slots therebetween. A first set of stator windings is wound on the stator teeth, and a second set of stator windings is also wound on the stator teeth such that, on each stator tooth, the first and second windings are provided in an electrically parallel configuration.

公开(公告)号：EP4020773A1

公开(公告)日：2022-06-29

申请号：EP21216332.3

申请日：2021-12-21

申请人： Black & Decker Inc.

发明人： GOHN, Barak, N. ,  CROSBY, Colin M. ,  LOWE, Nicholas J. ,  CLARKE, James R. ,  HECK, Daniel ,  SIKORA, Michael P. ,  ROGERSON, Christian B. ,  SCHROEDER, Ryan, F ,  MOHAN, Connor T. ,  GROVE, Michael D.

IPC分类号： H02K11/33 ,  H02K7/14 ,  H02K3/52 ,  H02K29/00 ,  H02K1/14 ,  H02K3/28

摘要： A brushless direct-current (BLDC) motor for a power tool includes a motor housing having a radial wall, a rotor, a stator assembly including stator windings, and stator terminals extending substantially parallel to the longitudinal axis from the stator assembly. The stator terminals are substantially aligned with centerlines of slots of the stator assembly. A circuit board is mounted on the stator terminals adjacent the stator assembly. The circuit board includes conductive traces facilitating a one of a delta or a series connection between the stator windings. The circuit board may be mounted inside the motor housing in contact with the radial member. A second circuit board may be provided with power switches for driving the motor proximate the circuit board.