公开(公告)号：US20220344994A1

公开(公告)日：2022-10-27

申请号：US17455412

申请日：2021-11-17

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yu-Wei CHUANG ,  Yao-Hsien SHAO ,  Ji DAI

IPC: H02K3/28

Abstract: A hairpin stator includes an iron core, a plurality of slot-positions and a plurality of hairpin wires. The slot-positions are located in the circumferential direction of the iron core, and form a plurality of adjacent slot-position layers in the radial direction. The iron core includes polar regions, each polar region includes phases, and each phase includes phase slots. The hairpin wires are arranged in the slot-positions of the phase slots of the same phases of the polar regions, and the hairpin wires are connected to form windings. The hairpin wires include transpolar hairpin wires. A span of the transpolar hairpin wires on an insertion side of the iron core is equal to a quotient, which is obtained by dividing a total number of the phase slots by a total number of the polar regions, plus 1 or minus 1.

公开(公告)号：US20230163666A1

公开(公告)日：2023-05-25

申请号：US17804598

申请日：2022-05-30

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yu-Wei CHUANG ,  Yao-Hsien SHAO ,  Ji DAI ,  Tzu-Ting HSU ,  Yen-Wei TSENG

IPC: H02K15/04 ,  H02K3/28 ,  H02K3/12 ,  H02K1/16

CPC classification number: H02K15/0421 ,  H02K3/28 ,  H02K3/12 ,  H02K1/16

Abstract: A hairpin stator includes a core, slot-positions and hairpin wires. The core includes a first side and a second side. The slot-positions are configured on the core circumferentially to form M radially-adjacent slot-position layers, wherein M is an odd number greater than or equal to 5. The hairpin wires are configured in the slot-positions and connected to form a plurality of windings. The hairpin wires include a plurality of first U-shaped wires arranged at an outermost slot-position layer in the radial direction and a plurality of second U-shaped wires arranged at an innermost slot-position layer in the radial direction. Each first U-shaped wire includes a U-shaped section arranged at the outermost slot-position layer and protruding from the first side of the core. Each second U-shaped wire includes a U-shaped section arranged at the innermost slot-position layer and protruding from the second side of the core.