Fan incorporating non-uniform blades

Fan incorporating non-uniform blades

A fan (2) includes a central hub (22), and a plurality of spaced and substantially sector-shaped blades (24) radially extending from the central hub. The blades surround the central hub. Shapes of the blades are similar. Sizes of the blades are all different from one another. Spacings between any tw...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: CHOW MIN CHAN JOHN
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Beschreibung
Zusammenfassung:A fan (2) includes a central hub (22), and a plurality of spaced and substantially sector-shaped blades (24) radially extending from the central hub. The blades surround the central hub. Shapes of the blades are similar. Sizes of the blades are all different from one another. Spacings between any two adjacent blades are all different from one another. The blades can therefore be configured such that a natural frequency of the blades is outside a range of a working frequency of a corresponding heat dissipation assembly which is used to dissipate heat from a corresponding electronic device. Resonance of the blades can therefore be completely avoided. Noise and vibration of the blades when the fan is operated can therefore be minimized.