公开(公告)号：US4769567A

公开(公告)日：1988-09-06

申请号：US65314

申请日：1987-06-22

申请人： Tuneya Kurauchi ,  Tooru Watanabe

发明人： Tuneya Kurauchi ,  Tooru Watanabe

IPC分类号： H02K21/14 ,  H02K29/00 ,  H02K37/14

CPC分类号： H02K21/14

摘要： A brushless direct current electric motor includes a stator having plural stator teeth at prescribed tooth pitches, exciter coils on the stator, a rotor mounted for rotation in an opening of the stator and plural magnetic poles formed on the peripheral surface of the rotor. According to the invention, the magnetic pole pitch between any given adjacent ones of the magnetic poles is different from the magnetic pole pitches between adjacent ones of said magnetic poles neighboring both sides of the firstly-mentioned adjacent ones of the magnetic poles.

摘要翻译： 无刷直流电动机包括具有规定齿距的多个定子齿的定子，定子上的励磁线圈，安装在定子的开口中的转子和形成在转子的周面上的多个磁极。 根据本发明，任何给定的相邻磁极之间的磁极间距与先前提到的相邻磁极相邻的所述磁极之间的磁极间距不同。