BEARING STRUCTURE FOR COOLING FAN

BEARING STRUCTURE FOR COOLING FAN

A cooling fan includes a fan housing (50) having a central tube (52), a bearing structure received in the central tube, a stator (60) mounted around the central tube, and a fan blade set (70). The bearing structure includes a shaft (30) being rotatably received in the central tube and connecting to...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YANG CHENG-PENG, YANG MING, LIN YEU-LIH
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Beschreibung
Zusammenfassung:A cooling fan includes a fan housing (50) having a central tube (52), a bearing structure received in the central tube, a stator (60) mounted around the central tube, and a fan blade set (70). The bearing structure includes a shaft (30) being rotatably received in the central tube and connecting to the fan blade set. An inner bearing (20) is fixedly mounted around the shaft to rotate with the shaft. Upper and lower outer bearings (10) are fixedly mounted into the central tube and are mounted around two opposite ends of the inner bearing, respectively. The inner and outer bearings are made of magnetic materials. The inner bearing floats between the outer bearings whereby rotation of the shaft does not cause the inner and outer bearings to wear.