Title:
低コギングトルク、高トルク密度トラクションモータ
Document Type and Number:
Japanese Patent JP7152120
Kind Code:
B2
Abstract:
A rotor assembly is provided that reduces cogging torque in a permanent magnet motor, thereby reducing potential NVH issues. The assembly utilizes two layers of magnets within the lamination stack, an inner layer that is positioned closer to the rotor and comprised of larger magnets, and an outer layer that is positioned closer to the outer lamination stack surface and comprised of smaller magnets. The magnets within each layer are configured in pairs, with each magnet pair forming a V-shaped arrangement.
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Inventors:
Emmad Dorara
Application Number:
JP2019184777A
Publication Date:
October 12, 2022
Filing Date:
October 07, 2019
Export Citation:
Assignee:
Atieva, Inc.
International Classes:
H02K1/276
Domestic Patent References:
| JP2012161207A | ||||
| JP2018082540A |
Foreign References:
| CN104242509A | ||||
| WO2012014260A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation RYUKA International Patent Office
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