Multiple magnet coil in gap generator

Details Multiple magnet coil in gap generator Multiple magnet coil in gap generator

2006-02-21

2009-08-18

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

C310S014000, C310S030000

Reexamination Certificate

active

07576454

ABSTRACT:
The present invention is an improved energy harvester or generator based on a yoked magnet array design based on a plurality of magnets arranged into at least two spaced apart linear or circular magnet arrays. The spaced apart magnet arrays are juxtaposed with each magnet in one array attractively interacting with the corresponding magnet in the other array across a small gap. The magnetic flux across the gap is further enhanced by having adjacent magnets in each array having alternate magnetic orientation and by providing a magnetic yoke of magnetically permeable material for the magnet ends of each array that do not face the gap. The gap is provided to allow a conductor in the form of a coil fit between the magnets. Relative motion between the coil and the magnets results in maximal generation of electrical power by the coil.

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Rong-Jie Wang, et al., Jan. 2005, Optimal Design of a Coreless Stator Axial Flux Permanent-Magnet Generator.

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