Patent · US Active

Method and apparatus for permanent magnet attachment in an electromechanical machine

US8664819B2 · kind B2 · utility

4Cited by

5References

41Claims

0Family size

Assignee

Northern Power Systems Utility Scale, Inc. · US

Inventors

Mark S. Piercey · Sudbury, US
Peter Mongeau · Needham, US
Jonathan A. Lynch · Saint Johnsbury Center, US
Thomas Kohler · Riedering, DE
Paul A. Smith · Montpelier, US

Key dates

Filing date	Aug 18, 2009
Grant date	Mar 4, 2014
Priority date	—
Expiry date	Jan 3, 2030

Classification

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

Abstract

An apparatus and method for the installation and removal of permanent magnets in a permanent magnet electromechanical machine, for example a wind turbine power unit generator. A magnet holder is mounted on a magnet carrying structure such as a rotor. Permanent magnets may be inserted into and removed from the magnet holder after the electromechanical machine is assembled. In this manner, permanent magnets may be installed on the magnet carrying structure by an interference fit, without using bolts or adhesives, to facilitate both assembly and removal for maintenance and repair.

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