公开(公告)号：US20200153305A1

公开(公告)日：2020-05-14

申请号：US16747186

申请日：2020-01-20

Applicant: BorgWarner Inc.

Inventor： KIRK E. NEET ,  Seong Taek Lee

IPC: H02K3/28 ,  H02K3/48 ,  H02K3/14 ,  H02K1/16 ,  H02K3/12

Abstract: A multi-phase electric machine having plurality of windings are mounted on the stator core that define a plurality of phases wherein, for each phase, the windings include at least two parallel windings, each winding comprising a pair of continuous wires. For each pole, the parallel windings fill one or more central slots and two outer slots. Each winding fills each central slot twice the number of times that the winding fills each outer slot to thereby define a slot fill ratio of 2:1 between central slots and outer slots and wherein each wire of the wire pair forming a winding fills the slots in a ratio that differs from the slot fill ratio. Each of the parallel windings includes a phase shift end loop that shift the windings from one outer slot to the other outer slot.

公开(公告)号：US20200220404A1

公开(公告)日：2020-07-09

申请号：US16819360

申请日：2020-03-16

Applicant: BorgWarner Inc.

Inventor： KIRK E. NEET

IPC: H02K3/12 ,  H02K3/48 ,  H02K1/16 ,  H02K3/28

Abstract: An electric machine with a stator operably coupled with a rotor. The stator includes a stator core defining a plurality of slots. Each of the slots defines a plurality of layer positions located at different radial distances from a rotational axis of the electric machine. At least three windings are associated with each of the phases of the machine. In a first slot, a first winding is disposed in a first layer position. A second winding is disposed in a second layer position. A third winding is disposed in a third layer position. The first winding includes a first outside lead wire extending from the first slot. The second winding includes a second outside lead wire extending from a second slot. The third winding includes a third outside lead wire extending from a third slot. Each of the outside lead wires are in the first layer position.