FAN AND BEARING THEREOF
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United States of America Patent
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Issued Date -
Apr 24, 2014
app pub date -
Oct 21, 2013
filing date -
Oct 22, 2012
priority date (Note) -
Abandoned
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Abstract
A bearing structure includes a non-metallic column-shaped main body having a through hole, an inner wall surrounding the through hole and an outer wall surrounding the inner wall. The outer wall has at least two protruding blocks extending outward and at least one groove, wherein the groove is arranged between the two neighboring protruding blocks. A fan includes a housing a stator winding, a bearing structure and a rotation piece. The housing has a base and an accommodating space. The stator winding is disposed in the accommodating space and surrounding the base. The bearing structure is disposed in the base. The rotation piece is disposed in the accommodating space, and has a rotation case, an axial shaft connected to the rotation case and a plurality of blades each connected to the rotation case.
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