Invention Application
- Patent Title: BI-MATERIAL PERMANENT MAGNETS FOR ELECTRIC MACHINES
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Application No.: US17116661Application Date: 2020-12-09
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Publication No.: US20220166264A1Publication Date: 2022-05-26
- Inventor: Alireza FATEMI , Anil K. SACHDEV , Jian YAO , Anthony M. COPPOLA , Thomas W. NEHL , Chengwu DUAN
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Priority: CN202011346829.9 20201126
- Main IPC: H02K1/02
- IPC: H02K1/02 ; H02K1/27 ; H02K1/32 ; H02K15/03 ; H02K21/24 ; H01F41/02
Abstract:
A bi-material permanent magnet for an electric machine includes a core including a first magnetic material and a shell portion located on the core and made of a second magnetic material. The first magnetic material comprises a magnet material with an energy less than 20 Mega Gauss Oersteds (MGOe). The second magnetic material comprises a magnet material with an energy greater than 30 MGOe.
Public/Granted literature
- US11936239B2 Bi-material permanent magnets for electric machines Public/Granted day:2024-03-19
Information query
