Compact and strengthened rotor assembly of a radiator fan
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United States of America Patent
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Apr 8, 2014
Grant Date -
May 17, 2012
app pub date -
Aug 15, 2011
filing date -
Nov 15, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A compact, strengthened rotor assembly of a radiator fan, the radiator fan having a baseplate, a stator assembly, a rotor assembly and a reverse axle. The reverse axle is erected at the center of the baseplate or stator assembly and protruded upwards. The rotor assembly has a hub with a top wall and a circumferential wall. A magnetic ring is set annularly into the circumferential wall. Several blades are set annularly onto the exterior of the circumferential wall. A metal sleeve is located at the center of the top wall and protruded downwards. A mating portion is set at the top of the metal sleeve for mating with the top wall. A holding portion is formed within the metal sleeve for assembly and positioning of a bearing, and the bearing is used for pivoting of the reverse axle. The thickness of the top wall ranges between 0.2 mm and 0.5 mm.
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