公开(公告)号：US20080290751A1

公开(公告)日：2008-11-27

申请号：US12153284

申请日：2008-05-16

Applicant: Chang-Chun Hwang ,  Shih-Ping Cheng ,  Ping-Lun Li ,  Wen-Yen Shen

Inventor： Chang-Chun Hwang ,  Shih-Ping Cheng ,  Ping-Lun Li ,  Wen-Yen Shen

IPC: H02K21/12

CPC classification number: H02K21/16 ,  H02K1/146

Abstract: A brushless permanent magnet motor with unequal-width slots and its manufacturing method completes a design of a regular motor with equal-width slots, employs a single-layer centralized winding, increasing the width equally on left and right sides of a first type of teeth wound with a coil until a width Wt3 of a tooth tip equals to a width Wp of a magnetic pole, such that the stator slot opening shifts towards a second type of teeth with no coil, increasing a width of a first type of teeth with a coil equally on left and right sides until a coil pitch equals to a width Wp of a magnetic pole or a motor angle equals to 180°, and decreasing a width Wt2 of a second type of teeth with no coil equally on both left and right sides until a slot area Sa2 is greater than the original slot area Sa1 of a regular motor with equal-width slots to improve the motor efficiency and reliability for a variable speed operation.

Abstract translation: 具有不等宽度槽的无刷永磁电动机及其制造方法完成了具有相等宽度槽的普通电动机的设计，采用单层集中绕组，在第一种类型的齿的左侧和右侧均匀地增加宽度 用线圈缠绕直到齿尖的宽度Wt3等于磁极的宽度Wp，使得定子槽开口朝向没有线圈的第二类型的齿移动，从而增加第一类型的齿的宽度 线圈间距等于磁极的宽度Wp或电机角度等于180°，同时在左右两侧均不减少线圈的第二种类型的齿的宽度Wt2， 直到槽区Sa2大于具有相等宽度槽的普通电动机的原始槽区Sa1，以提高用于变速操作的电动机效率和可靠性。