公开(公告)号：US20230050994A1

公开(公告)日：2023-02-16

申请号：US17400970

申请日：2021-08-12

Applicant: ABB Schweiz AG

Inventor： William E. Martin ,  Robert McElveen ,  Nicolas Frank

IPC: H02K1/27 ,  H02K3/48 ,  H02K21/12 ,  H02K15/03

Abstract: The disclosed embodiments describe a partially caged rotor for use in an interior permanent magnet motor and techniques for fabricating thereof. In some embodiments, a caged rotor includes: a rotor core having a shaft; a rotor cage comprising a plurality of conductor bars; and a plurality of permanent magnets at least partially disposed inside a plurality of mounting holes of the core, the plurality of permanent magnets and the plurality of mounting holes forming a plurality of cavities inside the core; wherein each conductor bar is disposed at a respective cavity of the plurality of cavities such that the plurality of conductor bars is of a number greater or equal to 8 and less or equal to 64.

公开(公告)号：US12040660B2

公开(公告)日：2024-07-16

申请号：US17400970

申请日：2021-08-12

Applicant: ABB Schweiz AG

Inventor： William E. Martin ,  Robert McElveen ,  Nicolas Frank

IPC: H02K1/276 ,  H02K3/48 ,  H02K15/03 ,  H02K21/12

CPC classification number: H02K1/276 ,  H02K3/48 ,  H02K15/03 ,  H02K21/12

Abstract: The disclosed embodiments describe a partially caged rotor for use in an interior permanent magnet motor and techniques for fabricating thereof. In some embodiments, a caged rotor includes: a rotor core having a shaft; a rotor cage comprising a plurality of conductor bars; and a plurality of permanent magnets at least partially disposed inside a plurality of mounting holes of the core, the plurality of permanent magnets and the plurality of mounting holes forming a plurality of cavities inside the core; wherein each conductor bar is disposed at a respective cavity of the plurality of cavities such that the plurality of conductor bars is of a number greater or equal to 8 and less or equal to 64.