Annular sintered magnet with radial magnetization and reinforced mechanical strength
US9748030B2 · kind B2 · utility
1Cited by
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16Claims
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Key dates
| Filing date | Jul 7, 2014 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Jul 7, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sintered annular magnet with a radial orientation of a remanent magnetic field, including: a principal annular part made from a ferromagnetic material, that has a first degree of magnetic anisotropy in the radial direction; and an annular reinforcing part fixed to the principal part of the magnet, the reinforcing part being made from same ferromagnetic material as the ferromagnetic material forming the principal part, and that has a second degree of magnetic anisotropy in the radial direction, the first degree being higher than the second degree.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.