公开(公告)号：US11139723B2

公开(公告)日：2021-10-05

申请号：US15651396

申请日：2017-07-17

Applicant: Hamilton Sundstrand Corporation

Inventor： Dhaval Patel ,  Glenn C. Lemmers, Jr. ,  Edward C. Allen ,  Andrew R. Wilkinson

IPC: H02K11/042 ,  H02K11/04 ,  H02M7/00

Abstract: A rectifier assembly according to an example of the present disclosure includes, among other things, a first housing and a second housing extending along an assembly axis, the first housing surrounding a pair of electrical rings. At least one spring strip includes a first spring strip portion transverse to a second spring strip portion, the second spring strip portion to bias diodes against an inner periphery of the pair of electrical rings. The second housing includes at least one connection terminal for receiving a wire from an exciter rotor, the at least one connection terminal including a screw threaded area which receives a bolt holding the first spring strip portion. A generator and a method of assembling a rectifier assembly are also disclosed.

公开(公告)号：US11038389B2

公开(公告)日：2021-06-15

申请号：US16112102

申请日：2018-08-24

Applicant: Hamilton Sundstrand Corporation

Inventor： Dhaval Patel ,  Edward C. Allen ,  Glenn C. Lemmers, Jr. ,  Andrew R. Wilkinson

IPC: H02K1/30 ,  H02K3/52 ,  H02K15/02 ,  F02C7/26 ,  H02K15/16

Abstract: An electrical machine includes a rotor including windings circumferentially spaced apart by rotor wedges. The electrical machine includes a rotor end plate mounted to the rotor. The rotor end plate includes an annular end plate body with an interior surface and axially opposed exterior surface. The interior surface includes a cavity for engaging the rotor. The interior surface has a base that is bounded by an inner rim and an outer rim radially opposite the inner rim. The interior surface is free of anti-rotation projections extending axially therefrom. The outer rim is free of anti-rotation features extending radially inward therefrom.

公开(公告)号：US10862378B2

公开(公告)日：2020-12-08

申请号：US16783502

申请日：2020-02-06

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： William Louis Wentland ,  Eric W. Karlen ,  Dhaval Patel ,  Andrew R. Wilkinson

IPC: H02K1/10 ,  H02K15/00 ,  H02K3/16 ,  H02K15/06 ,  H02K3/20 ,  H02K1/22 ,  H02K17/16 ,  H02K21/46

Abstract: A method of manufacturing a rotor of an electric motor or an electric generator includes positioning a plurality of amortisseur bars and using additive manufacturing to place electrically conductive material. More specifically, positioning the amortisseur bars may include circumferentially positioning the bars around a rotor stack and using additive manufacturing to place electrically conductive material may include forming a non-solid pattern of electrically conductive material, such as a pattern of electrically conductive traces, across opposite axial ends of the rotor stack to electrically interconnect an amortisseur circuit.

公开(公告)号：US20190157932A1

公开(公告)日：2019-05-23

申请号：US15818242

申请日：2017-11-20

Applicant: Hamilton Sundstrand Corporation

Inventor： Dhaval Patel ,  Andrew R. Wilkinson

IPC: H02K3/487 ,  H02K15/00

CPC classification number: H02K3/487 ,  H02K3/527 ,  H02K15/0018 ,  H02K15/022 ,  H02K19/00

Abstract: A wedge for securing windings in a slot in the rotor poles of a rotor core of an electrical machine includes an elongate wedge body extending in an axial direction along a longitudinal axis. The wedge body includes layers perpendicular to the axial direction. The layers vary in electrical conductivity from layer to layer to inhibit eddy currents within the wedge body.

公开(公告)号：US20180358877A1

公开(公告)日：2018-12-13

申请号：US15621083

申请日：2017-06-13

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Dhaval Patel ,  Andrew R. Wilkinson ,  Andreas C. Koenig

IPC: H02K21/44 ,  H02K1/24 ,  H02K1/27

CPC classification number: H02K21/44 ,  H02K1/24 ,  H02K1/27 ,  H02K21/38

Abstract: A multiphase switched flux electric machine including a rotary drive shaft, a ferromagnetic salient pole rotor assembly operably coupled to the rotary drive shaft having a plurality of rotor teeth defining a circumferential outer periphery of the rotor assembly, and a stator assembly. The stator assembly includes a ferromagnetic stator core, a plurality of permanent magnets positioned substantially equidistant about an inner circumference of the stator core, a plurality ferromagnetic stator teeth mounted to the permanent magnets on the stator core with distal ends forming an inner periphery of the stator assembly, the inner periphery proximate the outer axial periphery of the rotor assembly separated by an air gap; and a plurality of stator coils with an axial active portions disposed within selected teeth of the plurality of ferromagnetic stator teeth.

公开(公告)号：US20180316248A1

公开(公告)日：2018-11-01

申请号：US15651396

申请日：2017-07-17

Applicant: Hamilton Sundstrand Corporation

Inventor： Dhaval Patel ,  Glenn C. Lemmers ,  Edward C. Allen ,  Andrew R. Wilkinson

IPC: H02K11/042 ,  H02M7/00

Abstract: A rectifier assembly according to an example of the present disclosure includes, among other things, a first housing and a second housing extending along an assembly axis, the first housing surrounding a pair of electrical rings. At least one spring strip includes a first spring strip portion transverse to a second spring strip portion, the second spring strip portion to bias diodes against an inner periphery of the pair of electrical rings. The second housing includes at least one connection terminal for receiving a wire from an exciter rotor, the at least one connection terminal including a screw threaded area which receives a bolt holding the first spring strip portion. A generator and a method of assembling a rectifier assembly are also disclosed.

公开(公告)号：US20180248421A1

公开(公告)日：2018-08-30

申请号：US15445411

申请日：2017-02-28

Applicant: Hamilton Sundstrand Corporation

Inventor： Dhaval Patel ,  Andreas C. Koenig ,  Andrew R. Wilkinson

IPC: H02K1/18 ,  H02K1/16

CPC classification number: H02K1/185 ,  H02K1/165 ,  H02K15/024

Abstract: A lamination for an electrical machine lamination stack includes a body defining a plurality of winding slots on an inner diameter thereof and at least one inner diameter cleat aperture defined by the body configured to receive a cleat in an unlocked position and to interfere with the cleat when the cleat is transitioned to a locked position within the inner diameter cleat aperture such that a plurality of laminations can be stacked and locked together by the cleat.