US 12,255,510 B2
Mixed-phase winding, stator, and motor
Chaodong Huang, Chongqing (CN); and Junshan Shao, Chongqing (CN)
Assigned to CHONGQING ZONGSHEN ELECTRIC POWER TECHNOLOGY CO. LTD, Chongqing (CN); and CHONGQING ZONGSHEN INNOVATION TECHNOLOGY RESEARCH INSTITUTE CO. LTD, Chongqing (CN)
Filed by CHONGQING ZONGSHEN ELECTRIC POWER TECHNOLOGY CO. LTD, Chongqing (CN); and CHONGQING ZONGSHEN INNOVATION TECHNOLOGY RESEARCH INSTITUTE CO. LTD, Chongqing (CN)
Filed on Mar. 29, 2022, as Appl. No. 17/707,065.
Application 17/707,065 is a continuation of application No. PCT/CN2020/129570, filed on Nov. 17, 2020.
Claims priority of application No. 201911236634.6 (CN), filed on Dec. 5, 2019.
Prior Publication US 2022/0224181 A1, Jul. 14, 2022
Int. Cl. H02K 3/28 (2006.01); H02K 1/16 (2006.01)
CPC H02K 3/28 (2013.01) [H02K 1/16 (2013.01); H02K 2213/03 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A mixed-phase winding, comprising at least one branch,
wherein each branch comprises at least one coil ring, the coil ring comprises a set of lap winding coils and a set of combined conductors, each set of lap winding coils comprises P lap winding coils evenly distributed in a circumferential direction, and each set of combined conductors comprises P combined conductors evenly distributed in the circumferential direction, P is the number of pole pairs, and the lap winding coils and the combined conductors are spaced apart in a staggered manner in the circumferential direction and are connected in series sequentially;
each of the lap winding coil and the combined conductor comprises one hairpin conductor or at least two hairpin conductors arranged side by side in a thickness direction, the hairpin conductor comprises a hairpin body which as a whole is bent into a U-shape, the hairpin body comprises two support leg parts arranged in parallel and a head part connected to one end of the two support leg parts, and the two support leg parts are each provided with a support foot at another end;
wherein the lap winding coil comprises two hairpin conductors, which respectively are first-type skewed U-shaped conductor and second-type skewed U-shaped conductor, respectively; the first-type skewed U-shaped conductor and the second-type skewed U-shaped conductor are arranged side by side in a thickness direction of the hairpin body, a support foot on one support leg part of the first-type skewed U-shaped conductor and a support foot on another support leg part of the second-type skewed U-shaped conductor are skewed and bent away from each other in the width direction of the hairpin body, and another two support feet of the first-type skewed U-shaped conductor and the second-type skewed U-shaped conductor are bent toward each other in the width direction of the hairpin body and are connected with each other to form the lap winding coil; the hairpin conductor of the combined conductor is an integrally annular O-shaped conductor, two support feet of the O-shaped conductor are skewed and bent toward a middle part in the width direction of the hairpin body, and are spaced apart in a staggered manner in the thickness direction of the hairpin body.