Patent · US Active

Radially embedded permanent magnet rotor and methods thereof

US9246364B2 · kind B2 · utility

10Cited by

74References

19Claims

0Family size

Assignee

Regal Beloit America, Inc. · US

Inventors

Subhash Marutirao Brahmavar · Fort Wayne, US
Lester Benjamin Manz · Paulding, US
Ludovic Andre Chretien · Columbia City, US
Changiz Rashidzadeh · Yorba Linda, US
Dan M. Ionel · Glendale, US

Key dates

Filing date	Oct 15, 2012
Grant date	Jan 26, 2016
Priority date	—
Expiry date	Jan 11, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49012
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In one embodiment, a permanent magnet rotor is provided. The permanent magnet rotor includes at least one permanent magnet and a substantially cylindrical rotor core including an outer edge and an inner edge defining a central opening. The rotor core includes a radius R, at least one pole, and at least one radial aperture extending radially though the rotor core from the outer edge to a predetermined depth less than the radius. The at least one radial aperture is configured to receive the at least one permanent magnet. The rotor further includes at least one protrusion extending into the at least one radial aperture, the at least one protrusion positioned substantially along a bottom of the at least one radial aperture and configured to facilitate retention of the at least one permanent magnet within the at least one radial aperture.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.