Fine element magnet array

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United States of America Patent

PATENT NO 9906111
SERIAL NO

14831322

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Abstract

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A set of symmetrically segmented square prism Permanent Magnet (PM) halves in a 45-45-90 triangular prism and a rectangular square prism with predefined 45° stepped magnetizations are designed as Fine Elements (FEs), bringing finely adaptive mosaicking advantages for array arrangement. Optimized Halbach effect FE PM pole modules in cuboidal and isosceles trapezoidal prism shapes are invented to provide an augmented one-side-operating field. Simulation data show that typical dual layer FE PM arrays generate high-fidelity sinusoidal waveforms within air-gaps with peak field strengths of up to 1.2 Tesla. Featuring a pole width-to-thickness ratio ranging from 1 to 6, FE PM motor tracks with a series of scale, format, and sectional features are constructed in lightweight ferrous and/or nonferrous structures, which energize OEM and/or FE current carrying winding coils to implement linear and curvilinear motors with high power/force/torque density and low force ripple.

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Patent Owner(s)

Patent OwnerAddress
SUN XIUHONGNot Provided

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sun, Andrew Windham, US 6 29
Sun, Xiuhong Windham, US 7 338

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