公开(公告)号：US20150222150A1

公开(公告)日：2015-08-06

申请号：US14615046

申请日：2015-02-05

Applicant: DENSO CORPORATION ,  ASMO CO., LTD.

Inventor： Shinji MAKITA ,  Yasuhide ITO ,  Tomohiro AOYAMA

IPC: H02K1/16 ,  H02K1/27

CPC classification number: H02K1/16 ,  H02K1/146 ,  H02K1/278 ,  H02K29/03 ,  H02K2213/03

Abstract: An electric motor includes a rotor including magnetic poles whose number of pole pairs is P, P being a natural number, and a stator including windings. The stator includes (3/2)×P large teeth with a first pole pitch and (3/2)×P small teeth with a second pole pitch smaller than the first pole pitch. The large teeth and the small teeth are disposed so as to circumferentially alternate. The windings are wound concentratedly only on the large teeth. When the first pole pitch in electrical angle is X and the second pole pitch in electrical angle is Y, X is in a range from 144 to 180 degrees, and Y is equal to (240−X) degrees. The circumferentially adjacent windings are supplied with currents having a phase difference of 120 degrees in electrical angle therebetween, respectively.

Abstract translation: 电动机包括：转子，该转子包括极数为P，P为自然数的磁极和包括绕组的定子。 定子包括具有第一极间距的（3/2）×P大齿和具有小于第一极间距的第二极距的（3/2）×P个小齿。 大齿和小齿被设置为周向交替。 绕组仅集中在大齿上。 当电角度的第一极间距为X，电角度的第二极间距为Y时，X在144〜180度的范围内，Y等于（240-X）度。 周向相邻的绕组分别以其电角度分别具有120度的相位差的电流。

公开(公告)号：US20250141288A1

公开(公告)日：2025-05-01

申请号：US19010357

申请日：2025-01-06

Applicant: DENSO CORPORATION

Inventor： Tomohiro AOYAMA ,  Takahiro NAKAYAMA

IPC: H02K1/276 ,  H02K21/16 ,  H02K29/03

Abstract: A rotor includes a plurality of magnetic poles each of which has one slit formed in a rotor core. Each of the magnetic poles is divided into twelve equal areas between first and second circumferential ends thereof. Counting the twelve areas in order of proximity to the first circumferential end, the fourth to ninth areas are respectively defined as a first area, a second area, a third area, a fourth area, a fifth area and a sixth area. The slits of the magnetic poles include a first slit and a second slit. The first slit is arranged in the third area or the sixth area. The second slit is arranged in one of the first area, the second area, the third area, the fourth area, the fifth area and the sixth area.

公开(公告)号：US20140084736A1

公开(公告)日：2014-03-27

申请号：US13948654

申请日：2013-07-23

Applicant: ASMO Co., Ltd. ,  Denso Corporation

Inventor： Shinji MAKITA ,  Yasuhide ITO ,  Tomohiro AOYAMA

IPC: H02K3/12

CPC classification number: H02K3/12 ,  H02K3/28 ,  H02K21/16 ,  H02K2213/03

Abstract: A stator for a rotating electric machine includes an annular stator core and a plurality of winding groups mounted on teeth of the stator core. Each of the winding groups is either a short-pitch winding group which consists of windings wound at a pitch shorter than 180° in electrical angle or a full-pitch winding group which consists of windings wound at a pitch equal to 180° in electrical angle. The winding groups include at least one short-pitch winding group pair which consists of two short-pitch winding groups that respectively belong to two different phases and are circumferentially adjacent to each other. The two short-pitch winding groups are arranged so as not to overlap each other in a radial direction of the stator core. There are no other winding groups interposed between the two short-pitch winding groups in the circumferential direction of the stator core.

Abstract translation: 用于旋转电机的定子包括环形定子芯和安装在定子芯的齿上的多个绕组。 每个绕组组是短节距绕组组，其由以电角度短于180°的间距缠绕的绕组组成，或者由全绕组组成的绕组组成，该绕组组以绕电角度等于180°的间距 。 绕组组包括至少一个短节距绕组组对，其由分别属于两个不同相并且彼此周向相邻的两个短节距绕组组成。 两个短节距绕组组被布置成在定子​​芯的径向方向上不彼此重叠。 在定子铁芯的圆周方向上的两个短节距线圈组之间不设置其它绕组。