Portable electronic device incorporating centrifugal blower
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jan 4, 2011
Grant Date -
Dec 10, 2009
app pub date -
Mar 3, 2009
filing date -
Jun 4, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic device includes a casing and a centrifugal blower. The casing includes a bottom cover and a top cover. A sidewall extends from the bottom cover towards the top cover. The centrifugal blower is surrounded by the sidewall and includes a supporting member mounted to the bottom cover, and an impeller rotatablely supported by the supporting member. The impeller includes a hub and a plurality of blades extending outwardly from the hub. Outer portions of the blades extend beyond the supporting member along a radial direction of the hub. Inner portions of the blades have a height gradually increasing along an outward direction. The outer portions have a height equal to a maximum height of the inner portions. Bottom faces of the outer portions of the blades are located below a top surface of a base plate of the supporting member.
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