公开(公告)号：US20240348119A1

公开(公告)日：2024-10-17

申请号：US18133038

申请日：2023-04-11

Applicant: Hamilton Sundstrand Corporation

Inventor： Abbas A. Alahyari ,  Jagadeesh K. Tangudu ,  Andrzej Ernest Kuczek ,  Kimberly Rae Saviers

IPC: H02K3/32 ,  H02K1/12 ,  H02K15/10

CPC classification number: H02K3/32 ,  H02K1/12 ,  H02K15/105

Abstract: A stator for an electrical machine can include a plurality of windings, each forming a coil and end connections. The stator can include a first potting material having a first viscosity and a first thermal conductivity. The first potting material can be disposed on each coil and fills gaps between each coil. The stator can include a second potting material different from the first potting material and having a second viscosity and a second thermal conductivity. The second viscosity can be higher than the first viscosity and the second thermal conductivity is higher than the first thermal conductivity. The second potting material can be disposed on each of the end connections to provide increased thermal conductivity from the end connections.

公开(公告)号：US20240204587A1

公开(公告)日：2024-06-20

申请号：US18081010

申请日：2022-12-14

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Andrzej E. Kuczek ,  Jagadeesh K. Tangudu ,  Kimberly R. Saviers ,  Joseph E. Turney ,  Abbas A. Alahyari

IPC: H02K1/20 ,  B64D27/24 ,  B64D33/08 ,  H02K9/19

CPC classification number: H02K1/20 ,  B64D27/24 ,  B64D33/08 ,  H02K9/19 ,  B64D2221/00

Abstract: Stators for aircraft electric motors include a cantilever structure having a supported end and an unsupported end, wherein the cantilever structure includes an inlet support manifold and an outlet support manifold arranged at the supported end and a plurality of cooling plates extending from the inlet support manifold and the outlet support manifold to the unsupported end. A plurality of coils are arranged between and in thermal contact with the cooling plates and a core passes through the plurality of coils and the plurality of cooling plates. Each cooling plate defines a cooling channel that fluidly couples the inlet support manifold and the outlet support manifold, and the coils and the core are structurally supported by the plurality of cooling plates in a cantilevered manner at the supported end.

公开(公告)号：US20230327531A1

公开(公告)日：2023-10-12

申请号：US17718929

申请日：2022-04-12

Applicant: Hamilton Sundstrand Corporation

Inventor： Jagadeesh K. Tangudu ,  Beata I. Wawrzyniak

IPC: H02K16/04 ,  H02K7/00 ,  H02K1/18 ,  H02K1/2793 ,  B64D27/24

CPC classification number: H02K16/04 ,  H02K7/003 ,  H02K1/182 ,  H02K1/2793 ,  B64D27/24 ,  B64C2201/042

Abstract: Aircraft electric motors include a rotor comprising a plurality of magnet segments arranged on a frame of the rotor, the rotor defining an internal cavity radially inward from the plurality of magnet segments, an output shaft operably coupled to the rotor, a stator comprising at least one winding wrapped about a support structure, the stator arranged within the internal cavity of the rotor, and a stator support configured to supply at least a current into the at least one winding, wherein the support structure is structurally supported on the stator support. The magnet segments are symmetrically arranged about the stator to balance axial forces applied to the rotor when a current is induced within the at least one winding and maintain a gap between the plurality of magnet segments and the at least one winding.