High performance linear motor and magnet assembly therefor

Details High performance linear motor and magnet assembly therefor High performance linear motor and magnet assembly therefor

2005-07-19

2005-07-19

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

C310S013000, C310S015000

Reexamination Certificate

active

06919653

ABSTRACT:
A magnet assembly includes a back iron and an array of magnets. The back iron is in the form of a plate having opposed surfaces. The magnets are arranged along one of the surfaces, with the other surface being dimensioned and configured according to the magnetic field distribution associated with the magnets. The back iron geometry provides for reduced mass, reduced leakage flux, and high flux densities to improve performance of a linear motor that employs such a magnet assembly.

REFERENCES:
patent: 6016021 (2000-01-01), Hinds
patent: 6097114 (2000-08-01), Hazelton
patent: 6380661 (2002-04-01), Henderson et al.
patent: 6455957 (2002-09-01), Chitayat
patent: 2001145328 (2001-05-01), None
patent: 2001197717 (2001-07-01), None
James R. Hendershot, et al. “Design of Brushless Permanent-Magnet Motors”, Dec. 1994, vol. 37, Oxford University Press.

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