SHIELDING STRUCTURE
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United States of America Patent
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Issued Date -
Oct 18, 2012
app pub date -
Apr 14, 2011
filing date -
Apr 14, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A shielding structure disposed between a rotary motor and a resolver for resolving angular position thereof. The shielding structure includes a first shielding body made of a material with a permeability more than 4000. The first shielding body is sandwiched between the resolver and the rotary motor for shielding the resolver from the rotary motor. The first shielding body provides a path of low magnetic resistance to change the direction of magnetic flux and lower the electromagnetic interference of the magnetic field with the operation of the resolver. Accordingly, the resolver can more stably output resolution signals at higher precision.
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